From 3d0678e3cc82cd05337ad63d546c42b07fa575c5 Mon Sep 17 00:00:00 2001 From: von <1052019421@qq.com> Date: Mon, 31 Oct 2022 10:05:35 +0800 Subject: [PATCH] fix dds texture array --- src/image.cpp | 5755 ------------------------------------------------- 1 file changed, 5755 deletions(-) diff --git a/src/image.cpp b/src/image.cpp index 0094005..2a78c35 100644 --- a/src/image.cpp +++ b/src/image.cpp @@ -5617,5625 +5617,7 @@ namespace bimg return total; } -/* - * Copyright 2011-2022 Branimir Karadzic. All rights reserved. - * License: https://github.com/bkaradzic/bimg/blob/master/LICENSE - */ -#include "bimg_p.h" -#include - -#include - -#include - -namespace bimg -{ - static const ImageBlockInfo s_imageBlockInfo[] = - { - // +--------------------------------------------- bits per pixel - // | +----------------------------------------- block width - // | | +-------------------------------------- block height - // | | | +---------------------------------- block size - // | | | | +------------------------------- min blocks x - // | | | | | +---------------------------- min blocks y - // | | | | | | +------------------------ depth bits - // | | | | | | | +--------------------- stencil bits - // | | | | | | | | +---+---+---+----- r, g, b, a bits - // | | | | | | | | r g b a +-- encoding type - // | | | | | | | | | | | | | - { 4, 4, 4, 8, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // BC1 - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // BC2 - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // BC3 - { 4, 4, 4, 8, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // BC4 - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // BC5 - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Float) }, // BC6H - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // BC7 - { 4, 4, 4, 8, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ETC1 - { 4, 4, 4, 8, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ETC2 - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ETC2A - { 4, 4, 4, 8, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ETC2A1 - { 2, 8, 4, 8, 2, 2, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // PTC12 - { 4, 4, 4, 8, 2, 2, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // PTC14 - { 2, 8, 4, 8, 2, 2, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // PTC12A - { 4, 4, 4, 8, 2, 2, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // PTC14A - { 2, 8, 4, 8, 2, 2, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // PTC22 - { 4, 4, 4, 8, 2, 2, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // PTC24 - { 4, 4, 4, 8, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ATC - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ATCE - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ATCI - { 8, 4, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC4x4 - { 6, 5, 4, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC5x4 - { 6, 5, 5, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC5x5 - { 4, 6, 5, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC6x5 - { 4, 6, 6, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC6x6 - { 4, 8, 5, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC8x5 - { 3, 8, 6, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC8x6 - { 2, 8, 8, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC8x8 - { 3, 10, 5, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC10x5 - { 2, 10, 6, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC10x6 - { 2, 10, 8, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC10x8 - { 1, 10,10, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC10x10 - { 1, 12,10, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC12x10 - { 1, 12,12, 16, 1, 1, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // ASTC12x12 - { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Count) }, // Unknown - { 1, 8, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // R1 - { 8, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 8, uint8_t(bx::EncodingType::Unorm) }, // A8 - { 8, 1, 1, 1, 1, 1, 0, 0, 8, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // R8 - { 8, 1, 1, 1, 1, 1, 0, 0, 8, 0, 0, 0, uint8_t(bx::EncodingType::Int ) }, // R8I - { 8, 1, 1, 1, 1, 1, 0, 0, 8, 0, 0, 0, uint8_t(bx::EncodingType::Uint ) }, // R8U - { 8, 1, 1, 1, 1, 1, 0, 0, 8, 0, 0, 0, uint8_t(bx::EncodingType::Snorm) }, // R8S - { 16, 1, 1, 2, 1, 1, 0, 0, 16, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // R16 - { 16, 1, 1, 2, 1, 1, 0, 0, 16, 0, 0, 0, uint8_t(bx::EncodingType::Int ) }, // R16I - { 16, 1, 1, 2, 1, 1, 0, 0, 16, 0, 0, 0, uint8_t(bx::EncodingType::Uint ) }, // R16U - { 16, 1, 1, 2, 1, 1, 0, 0, 16, 0, 0, 0, uint8_t(bx::EncodingType::Float) }, // R16F - { 16, 1, 1, 2, 1, 1, 0, 0, 16, 0, 0, 0, uint8_t(bx::EncodingType::Snorm) }, // R16S - { 32, 1, 1, 4, 1, 1, 0, 0, 32, 0, 0, 0, uint8_t(bx::EncodingType::Int ) }, // R32I - { 32, 1, 1, 4, 1, 1, 0, 0, 32, 0, 0, 0, uint8_t(bx::EncodingType::Uint ) }, // R32U - { 32, 1, 1, 4, 1, 1, 0, 0, 32, 0, 0, 0, uint8_t(bx::EncodingType::Float) }, // R32F - { 16, 1, 1, 2, 1, 1, 0, 0, 8, 8, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // RG8 - { 16, 1, 1, 2, 1, 1, 0, 0, 8, 8, 0, 0, uint8_t(bx::EncodingType::Int ) }, // RG8I - { 16, 1, 1, 2, 1, 1, 0, 0, 8, 8, 0, 0, uint8_t(bx::EncodingType::Uint ) }, // RG8U - { 16, 1, 1, 2, 1, 1, 0, 0, 8, 8, 0, 0, uint8_t(bx::EncodingType::Snorm) }, // RG8S - { 32, 1, 1, 4, 1, 1, 0, 0, 16, 16, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // RG16 - { 32, 1, 1, 4, 1, 1, 0, 0, 16, 16, 0, 0, uint8_t(bx::EncodingType::Int ) }, // RG16I - { 32, 1, 1, 4, 1, 1, 0, 0, 16, 16, 0, 0, uint8_t(bx::EncodingType::Uint ) }, // RG16U - { 32, 1, 1, 4, 1, 1, 0, 0, 16, 16, 0, 0, uint8_t(bx::EncodingType::Float) }, // RG16F - { 32, 1, 1, 4, 1, 1, 0, 0, 16, 16, 0, 0, uint8_t(bx::EncodingType::Snorm) }, // RG16S - { 64, 1, 1, 8, 1, 1, 0, 0, 32, 32, 0, 0, uint8_t(bx::EncodingType::Int ) }, // RG32I - { 64, 1, 1, 8, 1, 1, 0, 0, 32, 32, 0, 0, uint8_t(bx::EncodingType::Uint ) }, // RG32U - { 64, 1, 1, 8, 1, 1, 0, 0, 32, 32, 0, 0, uint8_t(bx::EncodingType::Float) }, // RG32F - { 24, 1, 1, 3, 1, 1, 0, 0, 8, 8, 8, 0, uint8_t(bx::EncodingType::Unorm) }, // RGB8 - { 24, 1, 1, 3, 1, 1, 0, 0, 8, 8, 8, 0, uint8_t(bx::EncodingType::Int ) }, // RGB8I - { 24, 1, 1, 3, 1, 1, 0, 0, 8, 8, 8, 0, uint8_t(bx::EncodingType::Uint ) }, // RGB8U - { 24, 1, 1, 3, 1, 1, 0, 0, 8, 8, 8, 0, uint8_t(bx::EncodingType::Snorm) }, // RGB8S - { 32, 1, 1, 4, 1, 1, 0, 0, 9, 9, 9, 5, uint8_t(bx::EncodingType::Float) }, // RGB9E5F - { 32, 1, 1, 4, 1, 1, 0, 0, 8, 8, 8, 8, uint8_t(bx::EncodingType::Unorm) }, // BGRA8 - { 32, 1, 1, 4, 1, 1, 0, 0, 8, 8, 8, 8, uint8_t(bx::EncodingType::Unorm) }, // RGBA8 - { 32, 1, 1, 4, 1, 1, 0, 0, 8, 8, 8, 8, uint8_t(bx::EncodingType::Int ) }, // RGBA8I - { 32, 1, 1, 4, 1, 1, 0, 0, 8, 8, 8, 8, uint8_t(bx::EncodingType::Uint ) }, // RGBA8U - { 32, 1, 1, 4, 1, 1, 0, 0, 8, 8, 8, 8, uint8_t(bx::EncodingType::Snorm) }, // RGBA8S - { 64, 1, 1, 8, 1, 1, 0, 0, 16, 16, 16, 16, uint8_t(bx::EncodingType::Unorm) }, // RGBA16 - { 64, 1, 1, 8, 1, 1, 0, 0, 16, 16, 16, 16, uint8_t(bx::EncodingType::Int ) }, // RGBA16I - { 64, 1, 1, 8, 1, 1, 0, 0, 16, 16, 16, 16, uint8_t(bx::EncodingType::Uint ) }, // RGBA16U - { 64, 1, 1, 8, 1, 1, 0, 0, 16, 16, 16, 16, uint8_t(bx::EncodingType::Float) }, // RGBA16F - { 64, 1, 1, 8, 1, 1, 0, 0, 16, 16, 16, 16, uint8_t(bx::EncodingType::Snorm) }, // RGBA16S - { 128, 1, 1, 16, 1, 1, 0, 0, 32, 32, 32, 32, uint8_t(bx::EncodingType::Int ) }, // RGBA32I - { 128, 1, 1, 16, 1, 1, 0, 0, 32, 32, 32, 32, uint8_t(bx::EncodingType::Uint ) }, // RGBA32U - { 128, 1, 1, 16, 1, 1, 0, 0, 32, 32, 32, 32, uint8_t(bx::EncodingType::Float) }, // RGBA32F - { 16, 1, 1, 2, 1, 1, 0, 0, 5, 6, 5, 0, uint8_t(bx::EncodingType::Unorm) }, // B5G6R5 - { 16, 1, 1, 2, 1, 1, 0, 0, 5, 6, 5, 0, uint8_t(bx::EncodingType::Unorm) }, // R5G6B5 - { 16, 1, 1, 2, 1, 1, 0, 0, 4, 4, 4, 4, uint8_t(bx::EncodingType::Unorm) }, // BGRA4 - { 16, 1, 1, 2, 1, 1, 0, 0, 4, 4, 4, 4, uint8_t(bx::EncodingType::Unorm) }, // RGBA4 - { 16, 1, 1, 2, 1, 1, 0, 0, 5, 5, 5, 1, uint8_t(bx::EncodingType::Unorm) }, // BGR5A1 - { 16, 1, 1, 2, 1, 1, 0, 0, 5, 5, 5, 1, uint8_t(bx::EncodingType::Unorm) }, // RGB5A1 - { 32, 1, 1, 4, 1, 1, 0, 0, 10, 10, 10, 2, uint8_t(bx::EncodingType::Unorm) }, // RGB10A2 - { 32, 1, 1, 4, 1, 1, 0, 0, 11, 11, 10, 0, uint8_t(bx::EncodingType::Unorm) }, // RG11B10F - { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Count) }, // UnknownDepth - { 16, 1, 1, 2, 1, 1, 16, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // D16 - { 24, 1, 1, 3, 1, 1, 24, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // D24 - { 32, 1, 1, 4, 1, 1, 24, 8, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // D24S8 - { 32, 1, 1, 4, 1, 1, 32, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // D32 - { 16, 1, 1, 2, 1, 1, 16, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Float) }, // D16F - { 24, 1, 1, 3, 1, 1, 24, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Float) }, // D24F - { 32, 1, 1, 4, 1, 1, 32, 0, 0, 0, 0, 0, uint8_t(bx::EncodingType::Float) }, // D32F - { 8, 1, 1, 1, 1, 1, 0, 8, 0, 0, 0, 0, uint8_t(bx::EncodingType::Unorm) }, // D0S8 - }; - BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_imageBlockInfo) ); - - static const char* s_textureFormatName[] = - { - "BC1", // BC1 - "BC2", // BC2 - "BC3", // BC3 - "BC4", // BC4 - "BC5", // BC5 - "BC6H", // BC6H - "BC7", // BC7 - "ETC1", // ETC1 - "ETC2", // ETC2 - "ETC2A", // ETC2A - "ETC2A1", // ETC2A1 - "PTC12", // PTC12 - "PTC14", // PTC14 - "PTC12A", // PTC12A - "PTC14A", // PTC14A - "PTC22", // PTC22 - "PTC24", // PTC24 - "ATC", // ATC - "ATCE", // ATCE - "ATCI", // ATCI - "ASTC4x4", // ASTC4x4 - "ASTC5x4", // ASTC5x4 - "ASTC5x5", // ASTC5x5 - "ASTC6x5", // ASTC6x5 - "ASTC6x6", // ASTC6x6 - "ASTC8x5", // ASTC8x5 - "ASTC8x6", // ASTC8x6 - "ASTC8x8", // ASTC8x8 - "ASTC10x5", // ASTC10x5 - "ASTC10x6", // ASTC10x6 - "ASTC10x8", // ASTC10x8 - "ASTC10x10", // ASTC10x10 - "ASTC12x10", // ASTC12x10 - "ASTC12x12", // ASTC12x12 - "", // Unknown - "R1", // R1 - "A8", // A8 - "R8", // R8 - "R8I", // R8I - "R8U", // R8U - "R8S", // R8S - "R16", // R16 - "R16I", // R16I - "R16U", // R16U - "R16F", // R16F - "R16S", // R16S - "R32I", // R32I - "R32U", // R32U - "R32F", // R32F - "RG8", // RG8 - "RG8I", // RG8I - "RG8U", // RG8U - "RG8S", // RG8S - "RG16", // RG16 - "RG16I", // RG16I - "RG16U", // RG16U - "RG16F", // RG16F - "RG16S", // RG16S - "RG32I", // RG32I - "RG32U", // RG32U - "RG32F", // RG32F - "RGB8", // RGB8 - "RGB8I", // RGB8I - "RGB8U", // RGB8U - "RGB8S", // RGB8S - "RGB9E5", // RGB9E5F - "BGRA8", // BGRA8 - "RGBA8", // RGBA8 - "RGBA8I", // RGBA8I - "RGBA8U", // RGBA8U - "RGBA8S", // RGBA8S - "RGBA16", // RGBA16 - "RGBA16I", // RGBA16I - "RGBA16U", // RGBA16U - "RGBA16F", // RGBA16F - "RGBA16S", // RGBA16S - "RGBA32I", // RGBA32I - "RGBA32U", // RGBA32U - "RGBA32F", // RGBA32F - "B5G6R5", // B5G6R5 - "R5G6B5", // R5G6B5 - "BGRA4", // BGRA4 - "RGBA4", // RGBA4 - "BGR5A1", // BGR5A1 - "RGB5A1", // RGB5A1 - "RGB10A2", // RGB10A2 - "RG11B10F", // RG11B10F - "", // UnknownDepth - "D16", // D16 - "D24", // D24 - "D24S8", // D24S8 - "D32", // D32 - "D16F", // D16F - "D24F", // D24F - "D32F", // D32F - "D0S8", // D0S8 - }; - BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_textureFormatName) ); - - bool isCompressed(TextureFormat::Enum _format) - { - return _format < TextureFormat::Unknown; - } - - bool isColor(TextureFormat::Enum _format) - { - return _format > TextureFormat::Unknown - && _format < TextureFormat::UnknownDepth - ; - } - - bool isDepth(TextureFormat::Enum _format) - { - return _format > TextureFormat::UnknownDepth - && _format < TextureFormat::Count - ; - } - - bool isValid(TextureFormat::Enum _format) - { - return _format != TextureFormat::Unknown - && _format != TextureFormat::UnknownDepth - && _format != TextureFormat::Count - ; - } - - bool isFloat(TextureFormat::Enum _format) - { - return uint8_t(bx::EncodingType::Float) == s_imageBlockInfo[_format].encoding; - } - - uint8_t getBitsPerPixel(TextureFormat::Enum _format) - { - return s_imageBlockInfo[_format].bitsPerPixel; - } - - const ImageBlockInfo& getBlockInfo(TextureFormat::Enum _format) - { - return s_imageBlockInfo[_format]; - } - - uint8_t getBlockSize(TextureFormat::Enum _format) - { - return s_imageBlockInfo[_format].blockSize; - } - - const char* getName(TextureFormat::Enum _format) - { - if (_format >= TextureFormat::Count) - { - return "Unknown?!"; - } - - return s_textureFormatName[_format]; - } - - TextureFormat::Enum getFormat(const char* _name) - { - for (uint32_t ii = 0; ii < TextureFormat::Count; ++ii) - { - const TextureFormat::Enum fmt = TextureFormat::Enum(ii); - if (isValid(fmt) ) - { - if (0 == bx::strCmpI(s_textureFormatName[ii], _name) ) - { - return fmt; - } - } - } - - return TextureFormat::Unknown; - } - - uint8_t imageGetNumMips(TextureFormat::Enum _format, uint16_t _width, uint16_t _height, uint16_t _depth) - { - const ImageBlockInfo& blockInfo = getBlockInfo(_format); - const uint16_t blockWidth = blockInfo.blockWidth; - const uint16_t blockHeight = blockInfo.blockHeight; - const uint16_t minBlockX = blockInfo.minBlockX; - const uint16_t minBlockY = blockInfo.minBlockY; - - _width = bx::max(blockWidth * minBlockX, ( (_width + blockWidth - 1) / blockWidth )*blockWidth); - _height = bx::max(blockHeight * minBlockY, ( (_height + blockHeight - 1) / blockHeight)*blockHeight); - _depth = bx::max(1, _depth); - - uint8_t numMips = calcNumMips(true, _width, _height, _depth); - - return numMips; - } - - uint32_t imageGetSize(TextureInfo* _info, uint16_t _width, uint16_t _height, uint16_t _depth, bool _cubeMap, bool _hasMips, uint16_t _numLayers, TextureFormat::Enum _format) - { - const ImageBlockInfo& blockInfo = getBlockInfo(_format); - const uint8_t bpp = blockInfo.bitsPerPixel; - const uint16_t blockWidth = blockInfo.blockWidth; - const uint16_t blockHeight = blockInfo.blockHeight; - const uint16_t minBlockX = blockInfo.minBlockX; - const uint16_t minBlockY = blockInfo.minBlockY; - const uint8_t blockSize = blockInfo.blockSize; - - _width = bx::max(blockWidth * minBlockX, ( (_width + blockWidth - 1) / blockWidth)*blockWidth); - _height = bx::max(blockHeight * minBlockY, ( (_height + blockHeight - 1) / blockHeight)*blockHeight); - _depth = bx::max(1, _depth); - const uint8_t numMips = calcNumMips(_hasMips, _width, _height, _depth); - const uint32_t sides = _cubeMap ? 6 : 1; - - uint32_t width = _width; - uint32_t height = _height; - uint32_t depth = _depth; - uint32_t size = 0; - - for (uint32_t lod = 0; lod < numMips; ++lod) - { - width = bx::max(blockWidth * minBlockX, ( (width + blockWidth - 1) / blockWidth )*blockWidth); - height = bx::max(blockHeight * minBlockY, ( (height + blockHeight - 1) / blockHeight)*blockHeight); - depth = bx::max(1, depth); - - size += uint32_t(uint64_t(width/blockWidth * height/blockHeight * depth)*blockSize * sides); - - width >>= 1; - height >>= 1; - depth >>= 1; - } - - size *= _numLayers; - - if (NULL != _info) - { - _info->format = _format; - _info->width = _width; - _info->height = _height; - _info->depth = _depth; - _info->numMips = numMips; - _info->numLayers = _numLayers; - _info->cubeMap = _cubeMap; - _info->storageSize = size; - _info->bitsPerPixel = bpp; - } - - return size; - } - - BX_NO_INLINE void imageSolid(void* _dst, uint32_t _width, uint32_t _height, uint32_t _solid) - { - uint32_t* dst = (uint32_t*)_dst; - for (uint32_t ii = 0, num = _width*_height; ii < num; ++ii) - { - *dst++ = _solid; - } - } - - BX_NO_INLINE void imageCheckerboard(void* _dst, uint32_t _width, uint32_t _height, uint32_t _step, uint32_t _0, uint32_t _1) - { - uint32_t* dst = (uint32_t*)_dst; - for (uint32_t yy = 0; yy < _height; ++yy) - { - for (uint32_t xx = 0; xx < _width; ++xx) - { - uint32_t abgr = ( (xx/_step)&1) ^ ( (yy/_step)&1) ? _1 : _0; - *dst++ = abgr; - } - } - } - - void imageRgba8Downsample2x2Ref(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, uint32_t _dstPitch, const void* _src) - { - const uint32_t dstWidth = _width/2; - const uint32_t dstHeight = _height/2; - - if (0 == dstWidth - || 0 == dstHeight) - { - return; - } - - const uint8_t* src = (const uint8_t*)_src; - - for (uint32_t zz = 0; zz < _depth; ++zz) - { - for (uint32_t yy = 0, ystep = _srcPitch*2; yy < dstHeight; ++yy, src += ystep) - { - uint8_t* dst = (uint8_t*)_dst + _dstPitch*yy; - const uint8_t* rgba = src; - for (uint32_t xx = 0; xx < dstWidth; ++xx, rgba += 8, dst += 4) - { - float rr = bx::toLinear(rgba[ 0]); - float gg = bx::toLinear(rgba[ 1]); - float bb = bx::toLinear(rgba[ 2]); - float aa = rgba[ 3]; - rr += bx::toLinear(rgba[ 4]); - gg += bx::toLinear(rgba[ 5]); - bb += bx::toLinear(rgba[ 6]); - aa += rgba[ 7]; - rr += bx::toLinear(rgba[_srcPitch+0]); - gg += bx::toLinear(rgba[_srcPitch+1]); - bb += bx::toLinear(rgba[_srcPitch+2]); - aa += rgba[_srcPitch+3]; - rr += bx::toLinear(rgba[_srcPitch+4]); - gg += bx::toLinear(rgba[_srcPitch+5]); - bb += bx::toLinear(rgba[_srcPitch+6]); - aa += rgba[_srcPitch+7]; - - rr *= 0.25f; - gg *= 0.25f; - bb *= 0.25f; - aa *= 0.25f; - rr = bx::toGamma(rr); - gg = bx::toGamma(gg); - bb = bx::toGamma(bb); - dst[0] = (uint8_t)rr; - dst[1] = (uint8_t)gg; - dst[2] = (uint8_t)bb; - dst[3] = (uint8_t)aa; - } - } - } - } - - BX_SIMD_INLINE bx::simd128_t simd_to_linear(bx::simd128_t _a) - { - using namespace bx; - const simd128_t f12_92 = simd_ld(12.92f, 12.92f, 12.92f, 1.0f); - const simd128_t f0_055 = simd_ld(0.055f, 0.055f, 0.055f, 0.0f); - const simd128_t f1_055 = simd_ld(1.055f, 1.055f, 1.055f, 1.0f); - const simd128_t f2_4 = simd_ld(2.4f, 2.4f, 2.4f, 1.0f); - const simd128_t f0_04045 = simd_ld(0.04045f, 0.04045f, 0.04045f, 0.0f); - const simd128_t lo = simd_div(_a, f12_92); - const simd128_t tmp0 = simd_add(_a, f0_055); - const simd128_t tmp1 = simd_div(tmp0, f1_055); - const simd128_t hi = simd_pow(tmp1, f2_4); - const simd128_t mask = simd_cmple(_a, f0_04045); - const simd128_t result = simd_selb(mask, hi, lo); - - return result; - } - - BX_SIMD_INLINE bx::simd128_t simd_to_gamma(bx::simd128_t _a) - { - using namespace bx; - const simd128_t f12_92 = simd_ld(12.92f, 12.92f, 12.92f, 1.0f); - const simd128_t f0_055 = simd_ld(0.055f, 0.055f, 0.055f, 0.0f); - const simd128_t f1_055 = simd_ld(1.055f, 1.055f, 1.055f, 1.0f); - const simd128_t f1o2_4 = simd_ld(1.0f/2.4f, 1.0f/2.4f, 1.0f/2.4f, 1.0f); - const simd128_t f0_0031308 = simd_ld(0.0031308f, 0.0031308f, 0.0031308f, 0.0f); - const simd128_t lo = simd_mul(_a, f12_92); - const simd128_t absa = simd_abs(_a); - const simd128_t tmp0 = simd_pow(absa, f1o2_4); - const simd128_t tmp1 = simd_mul(tmp0, f1_055); - const simd128_t hi = simd_sub(tmp1, f0_055); - const simd128_t mask = simd_cmple(_a, f0_0031308); - const simd128_t result = simd_selb(mask, hi, lo); - - return result; - } - - void imageRgba8Downsample2x2(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, uint32_t _dstPitch, const void* _src) - { - const uint32_t dstWidth = _width/2; - const uint32_t dstHeight = _height/2; - - if (0 == dstWidth - || 0 == dstHeight) - { - return; - } - - const uint8_t* src = (const uint8_t*)_src; - - using namespace bx; - const simd128_t unpack = simd_ld(1.0f, 1.0f/256.0f, 1.0f/65536.0f, 1.0f/16777216.0f); - const simd128_t pack = simd_ld(1.0f, 256.0f*0.5f, 65536.0f, 16777216.0f*0.5f); - const simd128_t umask = simd_ild(0xff, 0xff00, 0xff0000, 0xff000000); - const simd128_t pmask = simd_ild(0xff, 0x7f80, 0xff0000, 0x7f800000); - const simd128_t wflip = simd_ild(0, 0, 0, 0x80000000); - const simd128_t wadd = simd_ld(0.0f, 0.0f, 0.0f, 32768.0f*65536.0f); - const simd128_t quater = simd_splat(0.25f); - - for (uint32_t zz = 0; zz < _depth; ++zz) - { - for (uint32_t yy = 0, ystep = _srcPitch*2; yy < dstHeight; ++yy, src += ystep) - { - uint8_t* dst = (uint8_t*)_dst + _dstPitch*yy; - const uint8_t* rgba = src; - for (uint32_t xx = 0; xx < dstWidth; ++xx, rgba += 8, dst += 4) - { - const simd128_t abgr0 = simd_splat(rgba); - const simd128_t abgr1 = simd_splat(rgba+4); - const simd128_t abgr2 = simd_splat(rgba+_srcPitch); - const simd128_t abgr3 = simd_splat(rgba+_srcPitch+4); - - const simd128_t abgr0m = simd_and(abgr0, umask); - const simd128_t abgr1m = simd_and(abgr1, umask); - const simd128_t abgr2m = simd_and(abgr2, umask); - const simd128_t abgr3m = simd_and(abgr3, umask); - const simd128_t abgr0x = simd_xor(abgr0m, wflip); - const simd128_t abgr1x = simd_xor(abgr1m, wflip); - const simd128_t abgr2x = simd_xor(abgr2m, wflip); - const simd128_t abgr3x = simd_xor(abgr3m, wflip); - const simd128_t abgr0f = simd_itof(abgr0x); - const simd128_t abgr1f = simd_itof(abgr1x); - const simd128_t abgr2f = simd_itof(abgr2x); - const simd128_t abgr3f = simd_itof(abgr3x); - const simd128_t abgr0c = simd_add(abgr0f, wadd); - const simd128_t abgr1c = simd_add(abgr1f, wadd); - const simd128_t abgr2c = simd_add(abgr2f, wadd); - const simd128_t abgr3c = simd_add(abgr3f, wadd); - const simd128_t abgr0n = simd_mul(abgr0c, unpack); - const simd128_t abgr1n = simd_mul(abgr1c, unpack); - const simd128_t abgr2n = simd_mul(abgr2c, unpack); - const simd128_t abgr3n = simd_mul(abgr3c, unpack); - - const simd128_t abgr0l = simd_to_linear(abgr0n); - const simd128_t abgr1l = simd_to_linear(abgr1n); - const simd128_t abgr2l = simd_to_linear(abgr2n); - const simd128_t abgr3l = simd_to_linear(abgr3n); - - const simd128_t sum0 = simd_add(abgr0l, abgr1l); - const simd128_t sum1 = simd_add(abgr2l, abgr3l); - const simd128_t sum2 = simd_add(sum0, sum1); - const simd128_t avg0 = simd_mul(sum2, quater); - const simd128_t avg1 = simd_to_gamma(avg0); - - const simd128_t avg2 = simd_mul(avg1, pack); - const simd128_t ftoi0 = simd_ftoi(avg2); - const simd128_t ftoi1 = simd_and(ftoi0, pmask); - const simd128_t zwxy = simd_swiz_zwxy(ftoi1); - const simd128_t tmp0 = simd_or(ftoi1, zwxy); - const simd128_t yyyy = simd_swiz_yyyy(tmp0); - const simd128_t tmp1 = simd_iadd(yyyy, yyyy); - const simd128_t result = simd_or(tmp0, tmp1); - - simd_stx(dst, result); - } - } - } - } - - void imageRgba32fToLinear(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, const void* _src) - { - uint8_t* dst = ( uint8_t*)_dst; - const uint8_t* src = (const uint8_t*)_src; - - for (uint32_t zz = 0; zz < _depth; ++zz) - { - for (uint32_t yy = 0; yy < _height; ++yy, src += _srcPitch, dst += _width*16) - { - for (uint32_t xx = 0; xx < _width; ++xx) - { - const uint32_t offset = xx * 16; - float* fd = ( float*)(dst + offset); - const float* fs = (const float*)(src + offset); - - fd[0] = bx::toLinear(fs[0]); - fd[1] = bx::toLinear(fs[1]); - fd[2] = bx::toLinear(fs[2]); - fd[3] = fs[3]; - } - } - } - } - - void imageRgba32fToLinear(ImageContainer* _imageContainer) - { - const uint16_t numSides = _imageContainer->m_numLayers * (_imageContainer->m_cubeMap ? 6 : 1); - - for (uint16_t side = 0; side < numSides; ++side) - { - ImageMip mip; - imageGetRawData(*_imageContainer, side, 0, _imageContainer->m_data, _imageContainer->m_size, mip); - - const uint32_t pitch = _imageContainer->m_width*16; - const uint32_t slice = _imageContainer->m_height*pitch; - - for (uint32_t zz = 0, depth = _imageContainer->m_depth; zz < depth; ++zz) - { - const uint32_t srcDataStep = uint32_t(bx::floor(zz * _imageContainer->m_depth / float(depth) ) ); - const uint8_t* srcData = &mip.m_data[srcDataStep*slice]; - - imageRgba32fToLinear(const_cast(srcData), mip.m_width, mip.m_height, 1, pitch, srcData); - } - } - } - - void imageRgba32fToGamma(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, const void* _src) - { - uint8_t* dst = ( uint8_t*)_dst; - const uint8_t* src = (const uint8_t*)_src; - - for (uint32_t zz = 0; zz < _depth; ++zz) - { - for (uint32_t yy = 0; yy < _height; ++yy, src += _srcPitch, dst += _width*16) - { - for (uint32_t xx = 0; xx < _width; ++xx) - { - const uint32_t offset = xx * 16; - float* fd = ( float*)(dst + offset); - const float* fs = (const float*)(src + offset); - - fd[0] = bx::toGamma(fs[0]); - fd[1] = bx::toGamma(fs[1]); - fd[2] = bx::toGamma(fs[2]); - fd[3] = fs[3]; - } - } - } - } - - void imageRgba32fToGamma(ImageContainer* _imageContainer) - { - const uint16_t numSides = _imageContainer->m_numLayers * (_imageContainer->m_cubeMap ? 6 : 1); - - for (uint16_t side = 0; side < numSides; ++side) - { - ImageMip mip; - imageGetRawData(*_imageContainer, side, 0, _imageContainer->m_data, _imageContainer->m_size, mip); - - const uint32_t pitch = _imageContainer->m_width*16; - const uint32_t slice = _imageContainer->m_height*pitch; - - for (uint32_t zz = 0, depth = _imageContainer->m_depth; zz < depth; ++zz) - { - const uint32_t srcDataStep = uint32_t(bx::floor(zz * _imageContainer->m_depth / float(depth) ) ); - const uint8_t* srcData = &mip.m_data[srcDataStep*slice]; - - imageRgba32fToGamma(const_cast(srcData), mip.m_width, mip.m_height, 1, pitch, srcData); - } - } - } - - void imageRgba32fLinearDownsample2x2Ref(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, const void* _src) - { - const uint32_t dstWidth = _width/2; - const uint32_t dstHeight = _height/2; - const uint32_t dstDepth = _depth/2; - - if (0 == dstWidth - || 0 == dstHeight) - { - return; - } - - const uint8_t* src = (const uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - if (0 == dstDepth) - { - for (uint32_t yy = 0, ystep = _srcPitch*2; yy < dstHeight; ++yy, src += ystep) - { - const float* rgba0 = (const float*)&src[0]; - const float* rgba1 = (const float*)&src[_srcPitch]; - for (uint32_t xx = 0; xx < dstWidth; ++xx, rgba0 += 8, rgba1 += 8, dst += 16) - { - float xyz[4]; - - xyz[0] = rgba0[0]; - xyz[1] = rgba0[1]; - xyz[2] = rgba0[2]; - xyz[3] = rgba0[3]; - - xyz[0] += rgba0[4]; - xyz[1] += rgba0[5]; - xyz[2] += rgba0[6]; - xyz[3] += rgba0[7]; - - xyz[0] += rgba1[0]; - xyz[1] += rgba1[1]; - xyz[2] += rgba1[2]; - xyz[3] += rgba1[3]; - - xyz[0] += rgba1[4]; - xyz[1] += rgba1[5]; - xyz[2] += rgba1[6]; - xyz[3] += rgba1[7]; - - xyz[0] *= 1.0f/4.0f; - xyz[1] *= 1.0f/4.0f; - xyz[2] *= 1.0f/4.0f; - xyz[3] *= 1.0f/4.0f; - - bx::packRgba32F(dst, xyz); - } - } - } - else - { - const uint32_t slicePitch = _srcPitch*_height; - - for (uint32_t zz = 0; zz < dstDepth; ++zz, src += slicePitch) - { - for (uint32_t yy = 0, ystep = _srcPitch*2; yy < dstHeight; ++yy, src += ystep) - { - const float* rgba0 = (const float*)&src[0]; - const float* rgba1 = (const float*)&src[_srcPitch]; - const float* rgba2 = (const float*)&src[slicePitch]; - const float* rgba3 = (const float*)&src[slicePitch+_srcPitch]; - for (uint32_t xx = 0 - ; xx < dstWidth - ; ++xx, rgba0 += 8, rgba1 += 8, rgba2 += 8, rgba3 += 8, dst += 16 - ) - { - float xyz[4]; - - xyz[0] = rgba0[0]; - xyz[1] = rgba0[1]; - xyz[2] = rgba0[2]; - xyz[3] = rgba0[3]; - - xyz[0] += rgba0[4]; - xyz[1] += rgba0[5]; - xyz[2] += rgba0[6]; - xyz[3] += rgba0[7]; - - xyz[0] += rgba1[0]; - xyz[1] += rgba1[1]; - xyz[2] += rgba1[2]; - xyz[3] += rgba1[3]; - - xyz[0] += rgba1[4]; - xyz[1] += rgba1[5]; - xyz[2] += rgba1[6]; - xyz[3] += rgba1[7]; - - xyz[0] += rgba2[0]; - xyz[1] += rgba2[1]; - xyz[2] += rgba2[2]; - xyz[3] += rgba2[3]; - - xyz[0] += rgba2[4]; - xyz[1] += rgba2[5]; - xyz[2] += rgba2[6]; - xyz[3] += rgba2[7]; - - xyz[0] += rgba3[0]; - xyz[1] += rgba3[1]; - xyz[2] += rgba3[2]; - xyz[3] += rgba3[3]; - - xyz[0] += rgba3[4]; - xyz[1] += rgba3[5]; - xyz[2] += rgba3[6]; - xyz[3] += rgba3[7]; - - xyz[0] *= 1.0f/8.0f; - xyz[1] *= 1.0f/8.0f; - xyz[2] *= 1.0f/8.0f; - xyz[3] *= 1.0f/8.0f; - - bx::packRgba32F(dst, xyz); - } - } - } - } - } - - void imageRgba32fLinearDownsample2x2(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, const void* _src) - { - imageRgba32fLinearDownsample2x2Ref(_dst, _width, _height, _depth, _srcPitch, _src); - } - - void imageRgba32fDownsample2x2Ref(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, const void* _src) - { - const uint32_t dstWidth = _width/2; - const uint32_t dstHeight = _height/2; - const uint32_t dstDepth = _depth/2; - - if (0 == dstWidth - || 0 == dstHeight) - { - return; - } - - const uint8_t* src = (const uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - if (0 == dstDepth) - { - for (uint32_t yy = 0, ystep = _srcPitch*2; yy < dstHeight; ++yy, src += ystep) - { - const float* rgba0 = (const float*)&src[0]; - const float* rgba1 = (const float*)&src[_srcPitch]; - for (uint32_t xx = 0; xx < dstWidth; ++xx, rgba0 += 8, rgba1 += 8, dst += 16) - { - float xyz[4]; - - xyz[0] = bx::toLinear(rgba0[0]); - xyz[1] = bx::toLinear(rgba0[1]); - xyz[2] = bx::toLinear(rgba0[2]); - xyz[3] = rgba0[3]; - - xyz[0] += bx::toLinear(rgba0[4]); - xyz[1] += bx::toLinear(rgba0[5]); - xyz[2] += bx::toLinear(rgba0[6]); - xyz[3] += rgba0[7]; - - xyz[0] += bx::toLinear(rgba1[0]); - xyz[1] += bx::toLinear(rgba1[1]); - xyz[2] += bx::toLinear(rgba1[2]); - xyz[3] += rgba1[3]; - - xyz[0] += bx::toLinear(rgba1[4]); - xyz[1] += bx::toLinear(rgba1[5]); - xyz[2] += bx::toLinear(rgba1[6]); - xyz[3] += rgba1[7]; - - xyz[0] = bx::toGamma(xyz[0]/4.0f); - xyz[1] = bx::toGamma(xyz[1]/4.0f); - xyz[2] = bx::toGamma(xyz[2]/4.0f); - xyz[3] = xyz[3]/4.0f; - - bx::packRgba32F(dst, xyz); - } - } - } - else - { - const uint32_t slicePitch = _srcPitch*_height; - - for (uint32_t zz = 0; zz < dstDepth; ++zz, src += slicePitch) - { - for (uint32_t yy = 0, ystep = _srcPitch*2; yy < dstHeight; ++yy, src += ystep) - { - const float* rgba0 = (const float*)&src[0]; - const float* rgba1 = (const float*)&src[_srcPitch]; - const float* rgba2 = (const float*)&src[slicePitch]; - const float* rgba3 = (const float*)&src[slicePitch+_srcPitch]; - for (uint32_t xx = 0 - ; xx < dstWidth - ; ++xx, rgba0 += 8, rgba1 += 8, rgba2 += 8, rgba3 += 8, dst += 16 - ) - { - float xyz[4]; - - xyz[0] = bx::toLinear(rgba0[0]); - xyz[1] = bx::toLinear(rgba0[1]); - xyz[2] = bx::toLinear(rgba0[2]); - xyz[3] = rgba0[3]; - - xyz[0] += bx::toLinear(rgba0[4]); - xyz[1] += bx::toLinear(rgba0[5]); - xyz[2] += bx::toLinear(rgba0[6]); - xyz[3] += rgba0[7]; - - xyz[0] += bx::toLinear(rgba1[0]); - xyz[1] += bx::toLinear(rgba1[1]); - xyz[2] += bx::toLinear(rgba1[2]); - xyz[3] += rgba1[3]; - - xyz[0] += bx::toLinear(rgba1[4]); - xyz[1] += bx::toLinear(rgba1[5]); - xyz[2] += bx::toLinear(rgba1[6]); - xyz[3] += rgba1[7]; - - xyz[0] += bx::toLinear(rgba2[0]); - xyz[1] += bx::toLinear(rgba2[1]); - xyz[2] += bx::toLinear(rgba2[2]); - xyz[3] += rgba2[3]; - - xyz[0] += bx::toLinear(rgba2[4]); - xyz[1] += bx::toLinear(rgba2[5]); - xyz[2] += bx::toLinear(rgba2[6]); - xyz[3] += rgba2[7]; - - xyz[0] += bx::toLinear(rgba3[0]); - xyz[1] += bx::toLinear(rgba3[1]); - xyz[2] += bx::toLinear(rgba3[2]); - xyz[3] += rgba3[3]; - - xyz[0] += bx::toLinear(rgba3[4]); - xyz[1] += bx::toLinear(rgba3[5]); - xyz[2] += bx::toLinear(rgba3[6]); - xyz[3] += rgba3[7]; - - xyz[0] = bx::toGamma(xyz[0]/8.0f); - xyz[1] = bx::toGamma(xyz[1]/8.0f); - xyz[2] = bx::toGamma(xyz[2]/8.0f); - xyz[3] = xyz[3]/8.0f; - - bx::packRgba32F(dst, xyz); - } - } - } - } - } - - void imageRgba32fDownsample2x2(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, const void* _src) - { - imageRgba32fDownsample2x2Ref(_dst, _width, _height, _depth, _srcPitch, _src); - } - - void imageRgba32fDownsample2x2NormalMapRef(void* _dst, uint32_t _width, uint32_t _height, uint32_t _srcPitch, uint32_t _dstPitch, const void* _src) - { - const uint32_t dstWidth = _width/2; - const uint32_t dstHeight = _height/2; - - if (0 == dstWidth - || 0 == dstHeight) - { - return; - } - - const uint8_t* src = (const uint8_t*)_src; - - for (uint32_t yy = 0, ystep = _srcPitch*2; yy < dstHeight; ++yy, src += ystep) - { - const float* rgba0 = (const float*)&src[0]; - const float* rgba1 = (const float*)&src[_srcPitch]; - - uint8_t* dst = (uint8_t*)_dst + _dstPitch*yy; - - for (uint32_t xx = 0; xx < dstWidth; ++xx, rgba0 += 8, rgba1 += 8, dst += 16) - { - float xyz[3]; - - xyz[0] = rgba0[0]; - xyz[1] = rgba0[1]; - xyz[2] = rgba0[2]; - - xyz[0] += rgba0[4]; - xyz[1] += rgba0[5]; - xyz[2] += rgba0[6]; - - xyz[0] += rgba1[0]; - xyz[1] += rgba1[1]; - xyz[2] += rgba1[2]; - - xyz[0] += rgba1[4]; - xyz[1] += rgba1[5]; - xyz[2] += rgba1[6]; - - bx::store(dst, bx::normalize(bx::load(xyz) ) ); - } - } - } - - void imageRgba32fDownsample2x2NormalMap(void* _dst, uint32_t _width, uint32_t _height, uint32_t _srcPitch, uint32_t _dstPitch, const void* _src) - { - imageRgba32fDownsample2x2NormalMapRef(_dst, _width, _height, _srcPitch, _dstPitch, _src); - } - - void imageSwizzleBgra8Ref(void* _dst, uint32_t _dstPitch, uint32_t _width, uint32_t _height, const void* _src, uint32_t _srcPitch) - { - const uint8_t* srcData = (uint8_t*) _src; - uint8_t* dstData = (uint8_t*)_dst; - - for (uint32_t yy = 0; yy < _height; ++yy, srcData += _srcPitch, dstData += _dstPitch) - { - const uint8_t* src = srcData; - uint8_t* dst = dstData; - - for (uint32_t xx = 0; xx < _width; ++xx, src += 4, dst += 4) - { - uint8_t rr = src[0]; - uint8_t gg = src[1]; - uint8_t bb = src[2]; - uint8_t aa = src[3]; - dst[0] = bb; - dst[1] = gg; - dst[2] = rr; - dst[3] = aa; - } - } - } - - void imageSwizzleBgra8(void* _dst, uint32_t _dstPitch, uint32_t _width, uint32_t _height, const void* _src, uint32_t _srcPitch) - { - // Test can we do four 4-byte pixels at the time. - if (0 != (_width&0x3) - || _width < 4 - || !bx::isAligned(_src, 16) - || !bx::isAligned(_dst, 16) ) - { - BX_WARN(false, "Image swizzle is taking slow path."); - BX_WARN(bx::isAligned(_src, 16), "Source %p is not 16-byte aligned.", _src); - BX_WARN(bx::isAligned(_dst, 16), "Destination %p is not 16-byte aligned.", _dst); - BX_WARN(_width < 4, "Image width must be multiple of 4 (width %d).", _width); - imageSwizzleBgra8Ref(_dst, _dstPitch, _width, _height, _src, _srcPitch); - return; - } - - using namespace bx; - - const simd128_t mf0f0 = simd_isplat(0xff00ff00); - const simd128_t m0f0f = simd_isplat(0x00ff00ff); - const uint32_t width = _width/4; - - const uint8_t* srcData = (uint8_t*) _src; - uint8_t* dstData = (uint8_t*)_dst; - - for (uint32_t yy = 0; yy < _height; ++yy, srcData += _srcPitch, dstData += _dstPitch) - { - const uint8_t* src = srcData; - uint8_t* dst = dstData; - - for (uint32_t xx = 0; xx < width; ++xx, src += 16, dst += 16) - { - const simd128_t tabgr = simd_ld(src); - const simd128_t t00ab = simd_srl(tabgr, 16); - const simd128_t tgr00 = simd_sll(tabgr, 16); - const simd128_t tgrab = simd_or(t00ab, tgr00); - const simd128_t ta0g0 = simd_and(tabgr, mf0f0); - const simd128_t t0r0b = simd_and(tgrab, m0f0f); - const simd128_t targb = simd_or(ta0g0, t0r0b); - simd_st(dst, targb); - } - } - } - - void imageCopy(void* _dst, uint32_t _height, uint32_t _srcPitch, uint32_t _depth, const void* _src, uint32_t _dstPitch) - { - const uint32_t pitch = bx::uint32_min(_srcPitch, _dstPitch); - const uint8_t* src = (uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - for (uint32_t zz = 0; zz < _depth; ++zz, src += _srcPitch*_height, dst += _dstPitch*_height) - { - bx::memCopy(dst, _dstPitch, src, _srcPitch, pitch, _height); - } - } - - void imageCopy(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _bpp, uint32_t _srcPitch, const void* _src) - { - const uint32_t dstPitch = _width*_bpp/8; - imageCopy(_dst, _height, _srcPitch, _depth, _src, dstPitch); - } - - struct PackUnpack - { - PackFn pack; - UnpackFn unpack; - }; - - static const PackUnpack s_packUnpack[] = - { - { NULL, NULL }, // BC1 - { NULL, NULL }, // BC2 - { NULL, NULL }, // BC3 - { NULL, NULL }, // BC4 - { NULL, NULL }, // BC5 - { NULL, NULL }, // BC6H - { NULL, NULL }, // BC7 - { NULL, NULL }, // ETC1 - { NULL, NULL }, // ETC2 - { NULL, NULL }, // ETC2A - { NULL, NULL }, // ETC2A1 - { NULL, NULL }, // PTC12 - { NULL, NULL }, // PTC14 - { NULL, NULL }, // PTC12A - { NULL, NULL }, // PTC14A - { NULL, NULL }, // PTC22 - { NULL, NULL }, // PTC24 - { NULL, NULL }, // ATC - { NULL, NULL }, // ATCE - { NULL, NULL }, // ATCI - { NULL, NULL }, // ASTC4x4 - { NULL, NULL }, // ASTC5x4 - { NULL, NULL }, // ASTC5x5 - { NULL, NULL }, // ASTC6x5 - { NULL, NULL }, // ASTC6x6 - { NULL, NULL }, // ASTC8x5 - { NULL, NULL }, // ASTC8x6 - { NULL, NULL }, // ASTC8x8 - { NULL, NULL }, // ASTC10x5 - { NULL, NULL }, // ASTC10x6 - { NULL, NULL }, // ASTC10x8 - { NULL, NULL }, // ASTC10x10 - { NULL, NULL }, // ASTC12x10 - { NULL, NULL }, // ASTC12x12 - { NULL, NULL }, // Unknown - { NULL, NULL }, // R1 - { bx::packA8, bx::unpackA8 }, // A8 - { bx::packR8, bx::unpackR8 }, // R8 - { bx::packR8I, bx::unpackR8I }, // R8I - { bx::packR8U, bx::unpackR8U }, // R8U - { bx::packR8S, bx::unpackR8S }, // R8S - { bx::packR16, bx::unpackR16 }, // R16 - { bx::packR16I, bx::unpackR16I }, // R16I - { bx::packR16U, bx::unpackR16U }, // R16U - { bx::packR16F, bx::unpackR16F }, // R16F - { bx::packR16S, bx::unpackR16S }, // R16S - { bx::packR32I, bx::unpackR32I }, // R32I - { bx::packR32U, bx::unpackR32U }, // R32U - { bx::packR32F, bx::unpackR32F }, // R32F - { bx::packRg8, bx::unpackRg8 }, // RG8 - { bx::packRg8I, bx::unpackRg8I }, // RG8I - { bx::packRg8U, bx::unpackRg8U }, // RG8U - { bx::packRg8S, bx::unpackRg8S }, // RG8S - { bx::packRg16, bx::unpackRg16 }, // RG16 - { bx::packRg16I, bx::unpackRg16I }, // RG16I - { bx::packRg16U, bx::unpackRg16U }, // RG16U - { bx::packRg16F, bx::unpackRg16F }, // RG16F - { bx::packRg16S, bx::unpackRg16S }, // RG16S - { bx::packRg32I, bx::unpackRg32I }, // RG32I - { bx::packRg32U, bx::unpackRg32U }, // RG32U - { bx::packRg32F, bx::unpackRg32F }, // RG32F - { bx::packRgb8, bx::unpackRgb8 }, // RGB8 - { bx::packRgb8S, bx::unpackRgb8S }, // RGB8S - { bx::packRgb8I, bx::unpackRgb8I }, // RGB8I - { bx::packRgb8U, bx::unpackRgb8U }, // RGB8U - { bx::packRgb9E5F, bx::unpackRgb9E5F }, // RGB9E5F - { bx::packBgra8, bx::unpackBgra8 }, // BGRA8 - { bx::packRgba8, bx::unpackRgba8 }, // RGBA8 - { bx::packRgba8I, bx::unpackRgba8I }, // RGBA8I - { bx::packRgba8U, bx::unpackRgba8U }, // RGBA8U - { bx::packRgba8S, bx::unpackRgba8S }, // RGBA8S - { bx::packRgba16, bx::unpackRgba16 }, // RGBA16 - { bx::packRgba16I, bx::unpackRgba16I }, // RGBA16I - { bx::packRgba16U, bx::unpackRgba16U }, // RGBA16U - { bx::packRgba16F, bx::unpackRgba16F }, // RGBA16F - { bx::packRgba16S, bx::unpackRgba16S }, // RGBA16S - { bx::packRgba32I, bx::unpackRgba32I }, // RGBA32I - { bx::packRgba32U, bx::unpackRgba32U }, // RGBA32U - { bx::packRgba32F, bx::unpackRgba32F }, // RGBA32F - { bx::packB5G6R5, bx::unpackB5G6R5 }, // B5G6R5 - { bx::packR5G6B5, bx::unpackR5G6B5 }, // R5G6B5 - { bx::packBgra4, bx::unpackBgra4 }, // BGRA4 - { bx::packRgba4, bx::unpackRgba4 }, // RGBA4 - { bx::packBgr5a1, bx::unpackBgr5a1 }, // BGR5A1 - { bx::packRgb5a1, bx::unpackRgb5a1 }, // RGB5A1 - { bx::packRgb10A2, bx::unpackRgb10A2 }, // RGB10A2 - { bx::packRG11B10F, bx::unpackRG11B10F }, // RG11B10F - { NULL, NULL }, // UnknownDepth - { bx::packR16, bx::unpackR16 }, // D16 - { bx::packR24, bx::unpackR24 }, // D24 - { bx::packR24G8, bx::unpackR24G8 }, // D24S8 - { NULL, NULL }, // D32 - { bx::packR16F, bx::unpackR16F }, // D16F - { NULL, NULL }, // D24F - { bx::packR32F, bx::unpackR32F }, // D32F - { bx::packR8, bx::unpackR8 }, // D0S8 - }; - BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_packUnpack) ); - - PackFn getPack(TextureFormat::Enum _format) - { - return s_packUnpack[_format].pack; - } - - UnpackFn getUnpack(TextureFormat::Enum _format) - { - return s_packUnpack[_format].unpack; - } - - bool imageConvert(TextureFormat::Enum _dstFormat, TextureFormat::Enum _srcFormat) - { - UnpackFn unpack = s_packUnpack[_srcFormat].unpack; - PackFn pack = s_packUnpack[_dstFormat].pack; - return NULL != pack - && NULL != unpack - ; - } - - void imageConvert(void* _dst, uint32_t _bpp, PackFn _pack, const void* _src, UnpackFn _unpack, uint32_t _size) - { - const uint8_t* src = (uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - const uint32_t size = _size * 8 / _bpp; - - for (uint32_t ii = 0; ii < size; ++ii) - { - float rgba[4]; - _unpack(rgba, &src[ii*_bpp/8]); - _pack(&dst[ii*_bpp/8], rgba); - } - } - - void imageConvert(void* _dst, uint32_t _dstBpp, PackFn _pack, const void* _src, uint32_t _srcBpp, UnpackFn _unpack, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, uint32_t _dstPitch) - { - const uint8_t* src = (uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - for (uint32_t zz = 0; zz < _depth; ++zz) - { - for (uint32_t yy = 0; yy < _height; ++yy, src += _srcPitch, dst += _dstPitch) - { - for (uint32_t xx = 0; xx < _width; ++xx) - { - float rgba[4]; - _unpack(rgba, &src[xx*_srcBpp/8]); - _pack(&dst[xx*_dstBpp/8], rgba); - } - } - } - } - - bool imageConvert(bx::AllocatorI* _allocator, void* _dst, TextureFormat::Enum _dstFormat, const void* _src, TextureFormat::Enum _srcFormat, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _srcPitch, uint32_t _dstPitch) - { - UnpackFn unpack = s_packUnpack[_srcFormat].unpack; - PackFn pack = s_packUnpack[_dstFormat].pack; - if (NULL == pack - || NULL == unpack) - { - switch (_dstFormat) - { - case TextureFormat::RGBA8: - imageDecodeToRgba8(_allocator, _dst, _src, _width, _height, _width*4, _srcFormat); - return true; - - case TextureFormat::BGRA8: - imageDecodeToBgra8(_allocator, _dst, _src, _width, _height, _width*4, _srcFormat); - return true; - - case TextureFormat::RGBA32F: - imageDecodeToRgba32f(_allocator, _dst, _src, _width, _height, 1, _width*16, _srcFormat); - return true; - - default: - break; - } - - return false; - } - - const uint32_t srcBpp = s_imageBlockInfo[_srcFormat].bitsPerPixel; - const uint32_t dstBpp = s_imageBlockInfo[_dstFormat].bitsPerPixel; - imageConvert(_dst, dstBpp, pack, _src, srcBpp, unpack, _width, _height, _depth, _srcPitch, _dstPitch); - - return true; - } - - bool imageConvert(bx::AllocatorI* _allocator, void* _dst, TextureFormat::Enum _dstFormat, const void* _src, TextureFormat::Enum _srcFormat, uint32_t _width, uint32_t _height, uint32_t _depth) - { - const uint32_t srcBpp = s_imageBlockInfo[_srcFormat].bitsPerPixel; - - if (_dstFormat == _srcFormat) - { - bx::memCopy(_dst, _src, _width*_height*_depth*(srcBpp/8) ); - return true; - } - - const uint32_t dstBpp = s_imageBlockInfo[_dstFormat].bitsPerPixel; - const uint32_t dstPitch = _width * dstBpp / 8; - - return imageConvert(_allocator, _dst, _dstFormat, _src, _srcFormat, _width, _height, _depth, _width*srcBpp/8, dstPitch); - } - - ImageContainer* imageConvert(bx::AllocatorI* _allocator, TextureFormat::Enum _dstFormat, const ImageContainer& _input, bool _convertMips) - { - ImageContainer* output = imageAlloc(_allocator - , _dstFormat - , uint16_t(_input.m_width) - , uint16_t(_input.m_height) - , uint16_t(_input.m_depth) - , _input.m_numLayers - , _input.m_cubeMap - , _convertMips && 1 < _input.m_numMips - ); - - const uint16_t numSides = _input.m_numLayers * (_input.m_cubeMap ? 6 : 1); - - for (uint16_t side = 0; side < numSides; ++side) - { - for (uint8_t lod = 0, num = _convertMips ? _input.m_numMips : 1; lod < num; ++lod) - { - ImageMip mip; - if (imageGetRawData(_input, side, lod, _input.m_data, _input.m_size, mip) ) - { - ImageMip dstMip; - imageGetRawData(*output, side, lod, output->m_data, output->m_size, dstMip); - uint8_t* dstData = const_cast(dstMip.m_data); - - bool ok = imageConvert( - _allocator - , dstData - , _dstFormat - , mip.m_data - , mip.m_format - , mip.m_width - , mip.m_height - , mip.m_depth - ); - BX_ASSERT(ok, "Conversion from %s to %s failed!" - , getName(_input.m_format) - , getName(output->m_format) - ); - BX_UNUSED(ok); - } - } - } - - return output; - } - - typedef bool (*ParseFn)(ImageContainer&, bx::ReaderSeekerI*, bx::Error*); - - template - ImageContainer* imageParseT(bx::AllocatorI* _allocator, const void* _src, uint32_t _size, bx::Error* _err) - { - bx::MemoryReader reader(_src, _size); - - uint32_t magic; - bx::read(&reader, magic, bx::ErrorIgnore{}); - - ImageContainer imageContainer; - if (magicT != magic) - { - return NULL; - } - - if (!parseFnT(imageContainer, &reader, _err) ) - { - return NULL; - } - - ImageContainer* output = imageAlloc(_allocator - , imageContainer.m_format - , uint16_t(imageContainer.m_width) - , uint16_t(imageContainer.m_height) - , uint16_t(imageContainer.m_depth) - , imageContainer.m_numLayers - , imageContainer.m_cubeMap - , 1 < imageContainer.m_numMips - ); - - const uint16_t numSides = imageContainer.m_numLayers * (imageContainer.m_cubeMap ? 6 : 1); - - for (uint16_t side = 0; side < numSides; ++side) - { - for (uint8_t lod = 0, num = imageContainer.m_numMips; lod < num; ++lod) - { - ImageMip dstMip; - if (imageGetRawData(*output, side, lod, output->m_data, output->m_size, dstMip) ) - { - ImageMip mip; - if (imageGetRawData(imageContainer, side, lod, _src, _size, mip) ) - { - uint8_t* dstData = const_cast(dstMip.m_data); - bx::memCopy(dstData, mip.m_data, mip.m_size); - } - } - } - } - - return output; - } - - static uint8_t bitRangeConvert(uint32_t _in, uint32_t _from, uint32_t _to) - { - using namespace bx; - uint32_t tmp0 = uint32_sll(1, _to); - uint32_t tmp1 = uint32_sll(1, _from); - uint32_t tmp2 = uint32_dec(tmp0); - uint32_t tmp3 = uint32_dec(tmp1); - uint32_t tmp4 = uint32_mul(_in, tmp2); - uint32_t tmp5 = uint32_add(tmp3, tmp4); - uint32_t tmp6 = uint32_srl(tmp5, _from); - uint32_t tmp7 = uint32_add(tmp5, tmp6); - uint32_t result = uint32_srl(tmp7, _from); - - return uint8_t(result); - } - - static void decodeBlockDxt(uint8_t _dst[16*4], const uint8_t _src[8]) - { - if (!BX_ENABLED(BIMG_DECODE_BC2 || BIMG_DECODE_BC3) ) - { - return; - } - - uint8_t colors[4*3]; - - uint32_t c0 = _src[0] | (_src[1] << 8); - colors[0] = bitRangeConvert( (c0>> 0)&0x1f, 5, 8); - colors[1] = bitRangeConvert( (c0>> 5)&0x3f, 6, 8); - colors[2] = bitRangeConvert( (c0>>11)&0x1f, 5, 8); - - uint32_t c1 = _src[2] | (_src[3] << 8); - colors[3] = bitRangeConvert( (c1>> 0)&0x1f, 5, 8); - colors[4] = bitRangeConvert( (c1>> 5)&0x3f, 6, 8); - colors[5] = bitRangeConvert( (c1>>11)&0x1f, 5, 8); - - colors[6] = (2*colors[0] + colors[3]) / 3; - colors[7] = (2*colors[1] + colors[4]) / 3; - colors[8] = (2*colors[2] + colors[5]) / 3; - - colors[ 9] = (colors[0] + 2*colors[3]) / 3; - colors[10] = (colors[1] + 2*colors[4]) / 3; - colors[11] = (colors[2] + 2*colors[5]) / 3; - - for (uint32_t ii = 0, next = 8*4; ii < 16*4; ii += 4, next += 2) - { - int idx = ( (_src[next>>3] >> (next & 7) ) & 3) * 3; - _dst[ii+0] = colors[idx+0]; - _dst[ii+1] = colors[idx+1]; - _dst[ii+2] = colors[idx+2]; - } - } - - static void decodeBlockDxt1(uint8_t _dst[16*4], const uint8_t _src[8]) - { - if (!BX_ENABLED(BIMG_DECODE_BC1 || BIMG_DECODE_BC2 || BIMG_DECODE_BC3) ) - { - return; - } - - uint8_t colors[4*4]; - - uint32_t c0 = _src[0] | (_src[1] << 8); - colors[0] = bitRangeConvert( (c0>> 0)&0x1f, 5, 8); - colors[1] = bitRangeConvert( (c0>> 5)&0x3f, 6, 8); - colors[2] = bitRangeConvert( (c0>>11)&0x1f, 5, 8); - colors[3] = 255; - - uint32_t c1 = _src[2] | (_src[3] << 8); - colors[4] = bitRangeConvert( (c1>> 0)&0x1f, 5, 8); - colors[5] = bitRangeConvert( (c1>> 5)&0x3f, 6, 8); - colors[6] = bitRangeConvert( (c1>>11)&0x1f, 5, 8); - colors[7] = 255; - - if (c0 > c1) - { - colors[ 8] = (2*colors[0] + colors[4]) / 3; - colors[ 9] = (2*colors[1] + colors[5]) / 3; - colors[10] = (2*colors[2] + colors[6]) / 3; - colors[11] = 255; - - colors[12] = (colors[0] + 2*colors[4]) / 3; - colors[13] = (colors[1] + 2*colors[5]) / 3; - colors[14] = (colors[2] + 2*colors[6]) / 3; - colors[15] = 255; - } - else - { - colors[ 8] = (colors[0] + colors[4]) / 2; - colors[ 9] = (colors[1] + colors[5]) / 2; - colors[10] = (colors[2] + colors[6]) / 2; - colors[11] = 255; - - colors[12] = 0; - colors[13] = 0; - colors[14] = 0; - colors[15] = 0; - } - - for (uint32_t ii = 0, next = 8*4; ii < 16*4; ii += 4, next += 2) - { - int idx = ( (_src[next>>3] >> (next & 7) ) & 3) * 4; - _dst[ii+0] = colors[idx+0]; - _dst[ii+1] = colors[idx+1]; - _dst[ii+2] = colors[idx+2]; - _dst[ii+3] = colors[idx+3]; - } - } - - static void decodeBlockDxt23A(uint8_t _dst[16*4], const uint8_t _src[8]) - { - if (!BX_ENABLED(BIMG_DECODE_BC2) ) - { - return; - } - - for (uint32_t ii = 0, next = 0; ii < 16*4; ii += 4, next += 4) - { - uint32_t c0 = (_src[next>>3] >> (next&7) ) & 0xf; - _dst[ii] = bitRangeConvert(c0, 4, 8); - } - } - - static void decodeBlockDxt45A(uint8_t _dst[16*4], const uint8_t _src[8]) - { - if (!BX_ENABLED(BIMG_DECODE_BC3 || BIMG_DECODE_BC4 || BIMG_DECODE_BC5) ) - { - return; - } - - uint8_t alpha[8]; - alpha[0] = _src[0]; - alpha[1] = _src[1]; - - if (alpha[0] > alpha[1]) - { - alpha[2] = (6*alpha[0] + 1*alpha[1]) / 7; - alpha[3] = (5*alpha[0] + 2*alpha[1]) / 7; - alpha[4] = (4*alpha[0] + 3*alpha[1]) / 7; - alpha[5] = (3*alpha[0] + 4*alpha[1]) / 7; - alpha[6] = (2*alpha[0] + 5*alpha[1]) / 7; - alpha[7] = (1*alpha[0] + 6*alpha[1]) / 7; - } - else - { - alpha[2] = (4*alpha[0] + 1*alpha[1]) / 5; - alpha[3] = (3*alpha[0] + 2*alpha[1]) / 5; - alpha[4] = (2*alpha[0] + 3*alpha[1]) / 5; - alpha[5] = (1*alpha[0] + 4*alpha[1]) / 5; - alpha[6] = 0; - alpha[7] = 255; - } - - uint32_t idx0 = _src[2]; - uint32_t idx1 = _src[5]; - idx0 |= uint32_t(_src[3])<<8; - idx1 |= uint32_t(_src[6])<<8; - idx0 |= uint32_t(_src[4])<<16; - idx1 |= uint32_t(_src[7])<<16; - for (uint32_t ii = 0; ii < 8*4; ii += 4) - { - _dst[ii] = alpha[idx0&7]; - _dst[ii+32] = alpha[idx1&7]; - idx0 >>= 3; - idx1 >>= 3; - } - } - - // BC6H, BC7 - // - // Reference(s): - // - https://web.archive.org/web/20181126035446/https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_texture_compression_bptc.txt - // - https://web.archive.org/web/20181126035538/https://docs.microsoft.com/en-us/windows/desktop/direct3d11/bc6h-format - // - static const uint16_t s_bptcP2[] = - { // 3210 0000000000 1111111111 2222222222 3333333333 - 0xcccc, // 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1 - 0x8888, // 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1 - 0xeeee, // 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1 - 0xecc8, // 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1 - 0xc880, // 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1 - 0xfeec, // 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1 - 0xfec8, // 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1 - 0xec80, // 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1 - 0xc800, // 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1 - 0xffec, // 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 - 0xfe80, // 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1 - 0xe800, // 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1 - 0xffe8, // 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 - 0xff00, // 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 - 0xfff0, // 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 - 0xf000, // 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1 - 0xf710, // 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1 - 0x008e, // 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 - 0x7100, // 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0 - 0x08ce, // 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0 - 0x008c, // 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 - 0x7310, // 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0 - 0x3100, // 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0 - 0x8cce, // 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1 - 0x088c, // 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0 - 0x3110, // 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0 - 0x6666, // 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0 - 0x366c, // 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0 - 0x17e8, // 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0 - 0x0ff0, // 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0 - 0x718e, // 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0 - 0x399c, // 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0 - 0xaaaa, // 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 - 0xf0f0, // 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1 - 0x5a5a, // 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0 - 0x33cc, // 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0 - 0x3c3c, // 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0 - 0x55aa, // 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0 - 0x9696, // 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1 - 0xa55a, // 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1 - 0x73ce, // 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0 - 0x13c8, // 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 - 0x324c, // 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0 - 0x3bdc, // 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0 - 0x6996, // 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0 - 0xc33c, // 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1 - 0x9966, // 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1 - 0x0660, // 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0 - 0x0272, // 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0 - 0x04e4, // 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0 - 0x4e40, // 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0 - 0x2720, // 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0 - 0xc936, // 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1 - 0x936c, // 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1 - 0x39c6, // 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0 - 0x639c, // 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0 - 0x9336, // 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1 - 0x9cc6, // 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1 - 0x817e, // 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1 - 0xe718, // 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1 - 0xccf0, // 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1 - 0x0fcc, // 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0 - 0x7744, // 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0 - 0xee22, // 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1 - }; - - static const uint32_t s_bptcP3[] = - { // 76543210 0000 1111 2222 3333 4444 5555 6666 7777 - 0xaa685050, // 0, 0, 1, 1, 0, 0, 1, 1, 0, 2, 2, 1, 2, 2, 2, 2 - 0x6a5a5040, // 0, 0, 0, 1, 0, 0, 1, 1, 2, 2, 1, 1, 2, 2, 2, 1 - 0x5a5a4200, // 0, 0, 0, 0, 2, 0, 0, 1, 2, 2, 1, 1, 2, 2, 1, 1 - 0x5450a0a8, // 0, 2, 2, 2, 0, 0, 2, 2, 0, 0, 1, 1, 0, 1, 1, 1 - 0xa5a50000, // 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 1, 1, 2, 2 - 0xa0a05050, // 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 2, 2, 0, 0, 2, 2 - 0x5555a0a0, // 0, 0, 2, 2, 0, 0, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1 - 0x5a5a5050, // 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1 - 0xaa550000, // 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2 - 0xaa555500, // 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2 - 0xaaaa5500, // 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2 - 0x90909090, // 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2 - 0x94949494, // 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 1, 1, 2 - 0xa4a4a4a4, // 0, 1, 2, 2, 0, 1, 2, 2, 0, 1, 2, 2, 0, 1, 2, 2 - 0xa9a59450, // 0, 0, 1, 1, 0, 1, 1, 2, 1, 1, 2, 2, 1, 2, 2, 2 - 0x2a0a4250, // 0, 0, 1, 1, 2, 0, 0, 1, 2, 2, 0, 0, 2, 2, 2, 0 - 0xa5945040, // 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 2, 1, 1, 2, 2 - 0x0a425054, // 0, 1, 1, 1, 0, 0, 1, 1, 2, 0, 0, 1, 2, 2, 0, 0 - 0xa5a5a500, // 0, 0, 0, 0, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2 - 0x55a0a0a0, // 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 1, 1, 1, 1 - 0xa8a85454, // 0, 1, 1, 1, 0, 1, 1, 1, 0, 2, 2, 2, 0, 2, 2, 2 - 0x6a6a4040, // 0, 0, 0, 1, 0, 0, 0, 1, 2, 2, 2, 1, 2, 2, 2, 1 - 0xa4a45000, // 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 2, 2, 0, 1, 2, 2 - 0x1a1a0500, // 0, 0, 0, 0, 1, 1, 0, 0, 2, 2, 1, 0, 2, 2, 1, 0 - 0x0050a4a4, // 0, 1, 2, 2, 0, 1, 2, 2, 0, 0, 1, 1, 0, 0, 0, 0 - 0xaaa59090, // 0, 0, 1, 2, 0, 0, 1, 2, 1, 1, 2, 2, 2, 2, 2, 2 - 0x14696914, // 0, 1, 1, 0, 1, 2, 2, 1, 1, 2, 2, 1, 0, 1, 1, 0 - 0x69691400, // 0, 0, 0, 0, 0, 1, 1, 0, 1, 2, 2, 1, 1, 2, 2, 1 - 0xa08585a0, // 0, 0, 2, 2, 1, 1, 0, 2, 1, 1, 0, 2, 0, 0, 2, 2 - 0xaa821414, // 0, 1, 1, 0, 0, 1, 1, 0, 2, 0, 0, 2, 2, 2, 2, 2 - 0x50a4a450, // 0, 0, 1, 1, 0, 1, 2, 2, 0, 1, 2, 2, 0, 0, 1, 1 - 0x6a5a0200, // 0, 0, 0, 0, 2, 0, 0, 0, 2, 2, 1, 1, 2, 2, 2, 1 - 0xa9a58000, // 0, 0, 0, 0, 0, 0, 0, 2, 1, 1, 2, 2, 1, 2, 2, 2 - 0x5090a0a8, // 0, 2, 2, 2, 0, 0, 2, 2, 0, 0, 1, 2, 0, 0, 1, 1 - 0xa8a09050, // 0, 0, 1, 1, 0, 0, 1, 2, 0, 0, 2, 2, 0, 2, 2, 2 - 0x24242424, // 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0 - 0x00aa5500, // 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 0, 0, 0, 0 - 0x24924924, // 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0 - 0x24499224, // 0, 1, 2, 0, 2, 0, 1, 2, 1, 2, 0, 1, 0, 1, 2, 0 - 0x50a50a50, // 0, 0, 1, 1, 2, 2, 0, 0, 1, 1, 2, 2, 0, 0, 1, 1 - 0x500aa550, // 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 0, 0, 0, 0, 1, 1 - 0xaaaa4444, // 0, 1, 0, 1, 0, 1, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2 - 0x66660000, // 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 1, 2, 1, 2, 1 - 0xa5a0a5a0, // 0, 0, 2, 2, 1, 1, 2, 2, 0, 0, 2, 2, 1, 1, 2, 2 - 0x50a050a0, // 0, 0, 2, 2, 0, 0, 1, 1, 0, 0, 2, 2, 0, 0, 1, 1 - 0x69286928, // 0, 2, 2, 0, 1, 2, 2, 1, 0, 2, 2, 0, 1, 2, 2, 1 - 0x44aaaa44, // 0, 1, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 0, 1, 0, 1 - 0x66666600, // 0, 0, 0, 0, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1 - 0xaa444444, // 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 2, 2, 2 - 0x54a854a8, // 0, 2, 2, 2, 0, 1, 1, 1, 0, 2, 2, 2, 0, 1, 1, 1 - 0x95809580, // 0, 0, 0, 2, 1, 1, 1, 2, 0, 0, 0, 2, 1, 1, 1, 2 - 0x96969600, // 0, 0, 0, 0, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2 - 0xa85454a8, // 0, 2, 2, 2, 0, 1, 1, 1, 0, 1, 1, 1, 0, 2, 2, 2 - 0x80959580, // 0, 0, 0, 2, 1, 1, 1, 2, 1, 1, 1, 2, 0, 0, 0, 2 - 0xaa141414, // 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 2, 2, 2, 2 - 0x96960000, // 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 1, 2, 2, 1, 1, 2 - 0xaaaa1414, // 0, 1, 1, 0, 0, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2 - 0xa05050a0, // 0, 0, 2, 2, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 2, 2 - 0xa0a5a5a0, // 0, 0, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 0, 0, 2, 2 - 0x96000000, // 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 1, 2 - 0x40804080, // 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 1 - 0xa9a8a9a8, // 0, 2, 2, 2, 1, 2, 2, 2, 0, 2, 2, 2, 1, 2, 2, 2 - 0xaaaaaa44, // 0, 1, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 - 0x2a4a5254, // 0, 1, 1, 1, 2, 0, 1, 1, 2, 2, 0, 1, 2, 2, 2, 0 - }; - - static const uint8_t s_bptcA2[] = - { - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, - 15, 2, 8, 2, 2, 8, 8, 15, - 2, 8, 2, 2, 8, 8, 2, 2, - 15, 15, 6, 8, 2, 8, 15, 15, - 2, 8, 2, 2, 2, 15, 15, 6, - 6, 2, 6, 8, 15, 15, 2, 2, - 15, 15, 15, 15, 15, 2, 2, 15, - }; - - static const uint8_t s_bptcA3[2][64] = - { - { - 3, 3, 15, 15, 8, 3, 15, 15, - 8, 8, 6, 6, 6, 5, 3, 3, - 3, 3, 8, 15, 3, 3, 6, 10, - 5, 8, 8, 6, 8, 5, 15, 15, - 8, 15, 3, 5, 6, 10, 8, 15, - 15, 3, 15, 5, 15, 15, 15, 15, - 3, 15, 5, 5, 5, 8, 5, 10, - 5, 10, 8, 13, 15, 12, 3, 3, - }, - { - 15, 8, 8, 3, 15, 15, 3, 8, - 15, 15, 15, 15, 15, 15, 15, 8, - 15, 8, 15, 3, 15, 8, 15, 8, - 3, 15, 6, 10, 15, 15, 10, 8, - 15, 3, 15, 10, 10, 8, 9, 10, - 6, 15, 8, 15, 3, 6, 6, 8, - 15, 3, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 3, 15, 15, 8, - }, - }; - - static const uint8_t s_bptcFactors[3][16] = - { - { 0, 21, 43, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, - { 0, 9, 18, 27, 37, 46, 55, 64, 0, 0, 0, 0, 0, 0, 0, 0 }, - { 0, 4, 9, 13, 17, 21, 26, 30, 34, 38, 43, 47, 51, 55, 60, 64 }, - }; - - struct BitReader - { - BitReader(const uint8_t* _data, uint16_t _bitPos = 0) - : m_data(_data) - , m_bitPos(_bitPos) - { - } - - uint16_t read(uint8_t _numBits) - { - const uint16_t pos = m_bitPos / 8; - const uint16_t shift = m_bitPos & 7; - uint32_t data = 0; - bx::memCopy(&data, &m_data[pos], bx::min(4, 16-pos) ); - m_bitPos += _numBits; - return uint16_t( (data >> shift) & ( (1 << _numBits)-1) ); - } - - uint16_t peek(uint16_t _offset, uint8_t _numBits) - { - const uint16_t bitPos = m_bitPos + _offset; - const uint16_t shift = bitPos & 7; - uint16_t pos = bitPos / 8; - uint32_t data = 0; - bx::memCopy(&data, &m_data[pos], bx::min(4, 16-pos) ); - return uint8_t( (data >> shift) & ( (1 << _numBits)-1) ); - } - - const uint8_t* m_data; - uint16_t m_bitPos; - }; - - static uint16_t bc6hUnquantize(uint16_t _value, bool _signed, uint8_t _endpointBits) - { - const uint16_t maxValue = 1<<(_endpointBits-1); - - if (_signed) - { - if (_endpointBits >= 16) - { - return _value; - } - - const bool sign = !!(_value & 0x8000); - _value &= 0x7fff; - - uint16_t unq; - - if (0 == _value) - { - unq = 0; - } - else if (_value >= maxValue-1) - { - unq = 0x7fff; - } - else - { - unq = ( (_value<<15) + 0x4000) >> (_endpointBits-1); - } - - return sign ? -unq : unq; - } - - if (_endpointBits >= 15) - { - return _value; - } - - if (0 == _value) - { - return 0; - } - - if (_value == maxValue) - { - return UINT16_MAX; - } - - return ( (_value<<15) + 0x4000) >> (_endpointBits-1); - } - - static uint16_t bc6hUnquantizeFinal(uint16_t _value, bool _signed) - { - if (_signed) - { - const uint16_t sign = _value & 0x8000; - _value &= 0x7fff; - - return ( (_value * 31) >> 5) | sign; - } - - return (_value * 31) >> 6; - } - - static uint16_t signExtend(uint16_t _value, uint8_t _numBits) - { - const uint16_t mask = 1 << (_numBits - 1); - const uint16_t result = (_value ^ mask) - mask; - - return result; - } - - struct Bc6hModeInfo - { - uint8_t transformed; - uint8_t partitionBits; - uint8_t endpointBits; - uint8_t deltaBits[3]; - }; - - static const Bc6hModeInfo s_bc6hModeInfo[] = - { // +--------------------------- transformed - // | +------------------------ partition bits - // | | +--------------------- endpoint bits - // | | | +-------------- delta bits - { 1, 5, 10, { 5, 5, 5 } }, // 00 2-bits - { 1, 5, 7, { 6, 6, 6 } }, // 01 - { 1, 5, 11, { 5, 4, 4 } }, // 00010 5-bits - { 0, 0, 10, { 10, 10, 10 } }, // 00011 - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 1, 5, 11, { 4, 5, 4 } }, // 00110 - { 1, 0, 11, { 9, 9, 9 } }, // 00010 - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 1, 5, 11, { 4, 4, 5 } }, // 00010 - { 1, 0, 12, { 8, 8, 8 } }, // 00010 - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 1, 5, 9, { 5, 5, 5 } }, // 00010 - { 1, 0, 16, { 4, 4, 4 } }, // 00010 - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 1, 5, 8, { 6, 5, 5 } }, // 00010 - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 1, 5, 8, { 5, 6, 5 } }, // 00010 - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 1, 5, 8, { 5, 5, 6 } }, // 00010 - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 0, 0, { 0, 0, 0 } }, // - - { 0, 5, 6, { 6, 6, 6 } }, // 00010 - { 0, 0, 0, { 0, 0, 0 } }, // - - }; - - static void decodeBlockBc6h(uint16_t _dst[16*3], const uint8_t _src[16], bool _signed) - { - if (!BX_ENABLED(BIMG_DECODE_BC6) ) - { - return; - } - - uint8_t src[16]; - bx::memCopy(src, _src, 16); - - BitReader bit(src); - - uint8_t mode = uint8_t(bit.read(2)); - - uint16_t epR[4] = { /* rw, rx, ry, rz */ }; - uint16_t epG[4] = { /* gw, gx, gy, gz */ }; - uint16_t epB[4] = { /* bw, bx, by, bz */ }; - - if (mode & 2) - { - // 5-bit mode - mode |= bit.read(3) << 2; - - if (0 == s_bc6hModeInfo[mode].endpointBits) - { - bx::memSet(_dst, 0, 16*3*2); - return; - } - - switch (mode) - { - case 2: - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read( 5) << 0; - epR[0] |= bit.read( 1) << 10; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 4) << 0; - epG[0] |= bit.read( 1) << 10; - epB[3] |= bit.read( 1) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 4) << 0; - epB[0] |= bit.read( 1) << 10; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 2; - epR[3] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 3; - break; - - case 3: - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read(10) << 0; - epG[1] |= bit.read(10) << 0; - epB[1] |= bit.read(10) << 0; - break; - - case 6: - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read( 4) << 0; - epR[0] |= bit.read( 1) << 10; - epG[3] |= bit.read( 1) << 4; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 5) << 0; - epG[0] |= bit.read( 1) << 10; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 4) << 0; - epB[0] |= bit.read( 1) << 10; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 4) << 0; - epB[3] |= bit.read( 1) << 0; - epB[3] |= bit.read( 1) << 2; - epR[3] |= bit.read( 4) << 0; - epG[2] |= bit.read( 1) << 4; - epB[3] |= bit.read( 1) << 3; - break; - - case 7: - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read( 9) << 0; - epR[0] |= bit.read( 1) << 10; - epG[1] |= bit.read( 9) << 0; - epG[0] |= bit.read( 1) << 10; - epB[1] |= bit.read( 9) << 0; - epB[0] |= bit.read( 1) << 10; - break; - - case 10: - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read( 4) << 0; - epR[0] |= bit.read( 1) << 10; - epB[2] |= bit.read( 1) << 4; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 4) << 0; - epG[0] |= bit.read( 1) << 10; - epB[3] |= bit.read( 1) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 5) << 0; - epB[0] |= bit.read( 1) << 10; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 4) << 0; - epB[3] |= bit.read( 1) << 1; - epB[3] |= bit.read( 1) << 2; - epR[3] |= bit.read( 4) << 0; - epB[3] |= bit.read( 1) << 4; - epB[3] |= bit.read( 1) << 3; - break; - - case 11: - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read( 8) << 0; - epR[0] |= bit.read( 1) << 11; - epR[0] |= bit.read( 1) << 10; - epG[1] |= bit.read( 8) << 0; - epG[0] |= bit.read( 1) << 11; - epG[0] |= bit.read( 1) << 10; - epB[1] |= bit.read( 8) << 0; - epB[0] |= bit.read( 1) << 11; - epB[0] |= bit.read( 1) << 10; - break; - - case 14: - epR[0] |= bit.read( 9) << 0; - epB[2] |= bit.read( 1) << 4; - epG[0] |= bit.read( 9) << 0; - epG[2] |= bit.read( 1) << 4; - epB[0] |= bit.read( 9) << 0; - epB[3] |= bit.read( 1) << 4; - epR[1] |= bit.read( 5) << 0; - epG[3] |= bit.read( 1) << 4; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 2; - epR[3] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 3; - break; - - case 15: - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read( 4) << 0; - epR[0] |= bit.read( 1) << 15; - epR[0] |= bit.read( 1) << 14; - epR[0] |= bit.read( 1) << 13; - epR[0] |= bit.read( 1) << 12; - epR[0] |= bit.read( 1) << 11; - epR[0] |= bit.read( 1) << 10; - epG[1] |= bit.read( 4) << 0; - epG[0] |= bit.read( 1) << 15; - epG[0] |= bit.read( 1) << 14; - epG[0] |= bit.read( 1) << 13; - epG[0] |= bit.read( 1) << 12; - epG[0] |= bit.read( 1) << 11; - epG[0] |= bit.read( 1) << 10; - epB[1] |= bit.read( 4) << 0; - epB[0] |= bit.read( 1) << 15; - epB[0] |= bit.read( 1) << 14; - epB[0] |= bit.read( 1) << 13; - epB[0] |= bit.read( 1) << 12; - epB[0] |= bit.read( 1) << 11; - epB[0] |= bit.read( 1) << 10; - break; - - case 18: - epR[0] |= bit.read( 8) << 0; - epG[3] |= bit.read( 1) << 4; - epB[2] |= bit.read( 1) << 4; - epG[0] |= bit.read( 8) << 0; - epB[3] |= bit.read( 1) << 2; - epG[2] |= bit.read( 1) << 4; - epB[0] |= bit.read( 8) << 0; - epB[3] |= bit.read( 1) << 3; - epB[3] |= bit.read( 1) << 4; - epR[1] |= bit.read( 6) << 0; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 6) << 0; - epR[3] |= bit.read( 6) << 0; - break; - - case 22: - epR[0] |= bit.read( 8) << 0; - epB[3] |= bit.read( 1) << 0; - epB[2] |= bit.read( 1) << 4; - epG[0] |= bit.read( 8) << 0; - epG[2] |= bit.read( 1) << 5; - epG[2] |= bit.read( 1) << 4; - epB[0] |= bit.read( 8) << 0; - epG[3] |= bit.read( 1) << 5; - epB[3] |= bit.read( 1) << 4; - epR[1] |= bit.read( 5) << 0; - epG[3] |= bit.read( 1) << 4; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 6) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 2; - epR[3] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 3; - break; - - case 26: - epR[0] |= bit.read( 8) << 0; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 1) << 4; - epG[0] |= bit.read( 8) << 0; - epB[2] |= bit.read( 1) << 5; - epG[2] |= bit.read( 1) << 4; - epB[0] |= bit.read( 8) << 0; - epB[3] |= bit.read( 1) << 5; - epB[3] |= bit.read( 1) << 4; - epR[1] |= bit.read( 5) << 0; - epG[3] |= bit.read( 1) << 4; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 6) << 0; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 2; - epR[3] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 3; - break; - - case 30: - epR[0] |= bit.read( 6) << 0; - epG[3] |= bit.read( 1) << 4; - epB[3] |= bit.read( 1) << 0; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 1) << 4; - epG[0] |= bit.read( 6) << 0; - epG[2] |= bit.read( 1) << 5; - epB[2] |= bit.read( 1) << 5; - epB[3] |= bit.read( 1) << 2; - epG[2] |= bit.read( 1) << 4; - epB[0] |= bit.read( 6) << 0; - epG[3] |= bit.read( 1) << 5; - epB[3] |= bit.read( 1) << 3; - epB[3] |= bit.read( 1) << 5; - epB[3] |= bit.read( 1) << 4; - epR[1] |= bit.read( 6) << 0; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 6) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 6) << 0; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 6) << 0; - epR[3] |= bit.read( 6) << 0; - break; - - default: - break; - } - } - else - { - switch (mode) - { - case 0: - epG[2] |= bit.read( 1) << 4; - epB[2] |= bit.read( 1) << 4; - epB[3] |= bit.read( 1) << 4; - epR[0] |= bit.read(10) << 0; - epG[0] |= bit.read(10) << 0; - epB[0] |= bit.read(10) << 0; - epR[1] |= bit.read( 5) << 0; - epG[3] |= bit.read( 1) << 4; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 2; - epR[3] |= bit.read( 5) << 0; - epB[3] |= bit.read( 1) << 3; - break; - - case 1: - epG[2] |= bit.read( 1) << 5; - epG[3] |= bit.read( 1) << 4; - epG[3] |= bit.read( 1) << 5; - epR[0] |= bit.read( 7) << 0; - epB[3] |= bit.read( 1) << 0; - epB[3] |= bit.read( 1) << 1; - epB[2] |= bit.read( 1) << 4; - epG[0] |= bit.read( 7) << 0; - epB[2] |= bit.read( 1) << 5; - epB[3] |= bit.read( 1) << 2; - epG[2] |= bit.read( 1) << 4; - epB[0] |= bit.read( 7) << 0; - epB[3] |= bit.read( 1) << 3; - epB[3] |= bit.read( 1) << 5; - epB[3] |= bit.read( 1) << 4; - epR[1] |= bit.read( 6) << 0; - epG[2] |= bit.read( 4) << 0; - epG[1] |= bit.read( 6) << 0; - epG[3] |= bit.read( 4) << 0; - epB[1] |= bit.read( 6) << 0; - epB[2] |= bit.read( 4) << 0; - epR[2] |= bit.read( 6) << 0; - epR[3] |= bit.read( 6) << 0; - break; - - default: - break; - } - } - - const Bc6hModeInfo mi = s_bc6hModeInfo[mode]; - - if (_signed) - { - epR[0] = signExtend(epR[0], mi.endpointBits); - epG[0] = signExtend(epG[0], mi.endpointBits); - epB[0] = signExtend(epB[0], mi.endpointBits); - } - - const uint8_t numSubsets = !!mi.partitionBits + 1; - - for (uint8_t ii = 1, num = numSubsets*2; ii < num; ++ii) - { - if (_signed - || mi.transformed) - { - epR[ii] = signExtend(epR[ii], mi.deltaBits[0]); - epG[ii] = signExtend(epG[ii], mi.deltaBits[1]); - epB[ii] = signExtend(epB[ii], mi.deltaBits[2]); - } - - if (mi.transformed) - { - const uint16_t mask = (1<> idx) & 1; - indexAnchor = subsetIndex ? s_bptcA2[partitionSetIdx] : 0; - } - - const uint8_t anchor = idx == indexAnchor; - const uint8_t num = indexBits - anchor; - const uint8_t index = (uint8_t)bit.read(num); - - const uint8_t fc = factors[index]; - const uint8_t fca = 64 - fc; - const uint8_t fcb = fc; - - subsetIndex *= 2; - uint16_t rr = bc6hUnquantizeFinal( (epR[subsetIndex]*fca + epR[subsetIndex + 1]*fcb + 32) >> 6, _signed); - uint16_t gg = bc6hUnquantizeFinal( (epG[subsetIndex]*fca + epG[subsetIndex + 1]*fcb + 32) >> 6, _signed); - uint16_t bb = bc6hUnquantizeFinal( (epB[subsetIndex]*fca + epB[subsetIndex + 1]*fcb + 32) >> 6, _signed); - - uint16_t* rgba = &_dst[idx*3]; - rgba[0] = rr; - rgba[1] = gg; - rgba[2] = bb; - } - } - } - - static void decodeBlockBc6h(float _dst[16*4], const uint8_t _src[16]) - { - if (!BX_ENABLED(BIMG_DECODE_BC6) ) - { - return; - } - - uint16_t tmp[16*3]; - - decodeBlockBc6h(tmp, _src, true); - - for (uint32_t ii = 0; ii < 16; ++ii) - { - _dst[ii*4+0] = bx::halfToFloat(tmp[ii*3+0]); - _dst[ii*4+1] = bx::halfToFloat(tmp[ii*3+1]); - _dst[ii*4+2] = bx::halfToFloat(tmp[ii*3+2]); - _dst[ii*4+3] = 1.0f; - } - } - - struct Bc7ModeInfo - { - uint8_t numSubsets; - uint8_t partitionBits; - uint8_t rotationBits; - uint8_t indexSelectionBits; - uint8_t colorBits; - uint8_t alphaBits; - uint8_t endpointPBits; - uint8_t sharedPBits; - uint8_t indexBits[2]; - }; - - static const Bc7ModeInfo s_bp7ModeInfo[] = - { // +---------------------------- num subsets - // | +------------------------- partition bits - // | | +---------------------- rotation bits - // | | | +------------------- index selection bits - // | | | | +---------------- color bits - // | | | | | +------------- alpha bits - // | | | | | | +---------- endpoint P-bits - // | | | | | | | +------- shared P-bits - // | | | | | | | | +-- 2x index bits - { 3, 4, 0, 0, 4, 0, 1, 0, { 3, 0 } }, // 0 - { 2, 6, 0, 0, 6, 0, 0, 1, { 3, 0 } }, // 1 - { 3, 6, 0, 0, 5, 0, 0, 0, { 2, 0 } }, // 2 - { 2, 6, 0, 0, 7, 0, 1, 0, { 2, 0 } }, // 3 - { 1, 0, 2, 1, 5, 6, 0, 0, { 2, 3 } }, // 4 - { 1, 0, 2, 0, 7, 8, 0, 0, { 2, 2 } }, // 5 - { 1, 0, 0, 0, 7, 7, 1, 0, { 4, 0 } }, // 6 - { 2, 6, 0, 0, 5, 5, 1, 0, { 2, 0 } }, // 7 - }; - - static void decodeBlockBc7(uint8_t _dst[16*4], const uint8_t _src[16]) - { - if (!BX_ENABLED(BIMG_DECODE_BC7) ) - { - return; - } - - BitReader bit(_src); - - uint8_t mode = 0; - for (; mode < 8 && 0 == bit.read(1); ++mode) - { - } - - if (mode == 8) - { - bx::memSet(_dst, 0, 16*4); - return; - } - - const Bc7ModeInfo& mi = s_bp7ModeInfo[mode]; - const uint8_t modePBits = 0 != mi.endpointPBits - ? mi.endpointPBits - : mi.sharedPBits - ; - - const uint8_t partitionSetIdx = uint8_t(bit.read(mi.partitionBits) ); - const uint8_t rotationMode = uint8_t(bit.read(mi.rotationBits) ); - const uint8_t indexSelectionMode = uint8_t(bit.read(mi.indexSelectionBits) ); - - uint8_t epR[6]; - uint8_t epG[6]; - uint8_t epB[6]; - uint8_t epA[6]; - - for (uint8_t ii = 0; ii < mi.numSubsets; ++ii) - { - epR[ii*2+0] = uint8_t(bit.read(mi.colorBits) << modePBits); - epR[ii*2+1] = uint8_t(bit.read(mi.colorBits) << modePBits); - } - - for (uint8_t ii = 0; ii < mi.numSubsets; ++ii) - { - epG[ii*2+0] = uint8_t(bit.read(mi.colorBits) << modePBits); - epG[ii*2+1] = uint8_t(bit.read(mi.colorBits) << modePBits); - } - - for (uint8_t ii = 0; ii < mi.numSubsets; ++ii) - { - epB[ii*2+0] = uint8_t(bit.read(mi.colorBits) << modePBits); - epB[ii*2+1] = uint8_t(bit.read(mi.colorBits) << modePBits); - } - - if (mi.alphaBits) - { - for (uint8_t ii = 0; ii < mi.numSubsets; ++ii) - { - epA[ii*2+0] = uint8_t(bit.read(mi.alphaBits) << modePBits); - epA[ii*2+1] = uint8_t(bit.read(mi.alphaBits) << modePBits); - } - } - else - { - bx::memSet(epA, 0xff, 6); - } - - if (0 != modePBits) - { - for (uint8_t ii = 0; ii < mi.numSubsets; ++ii) - { - const uint8_t pda = uint8_t( bit.read(modePBits) ); - const uint8_t pdb = uint8_t(0 == mi.sharedPBits ? bit.read(modePBits) : pda); - - epR[ii*2+0] |= pda; - epR[ii*2+1] |= pdb; - epG[ii*2+0] |= pda; - epG[ii*2+1] |= pdb; - epB[ii*2+0] |= pda; - epB[ii*2+1] |= pdb; - epA[ii*2+0] |= pda; - epA[ii*2+1] |= pdb; - } - } - - const uint8_t colorBits = mi.colorBits + modePBits; - - for (uint8_t ii = 0; ii < mi.numSubsets; ++ii) - { - epR[ii*2+0] = bitRangeConvert(epR[ii*2+0], colorBits, 8); - epR[ii*2+1] = bitRangeConvert(epR[ii*2+1], colorBits, 8); - epG[ii*2+0] = bitRangeConvert(epG[ii*2+0], colorBits, 8); - epG[ii*2+1] = bitRangeConvert(epG[ii*2+1], colorBits, 8); - epB[ii*2+0] = bitRangeConvert(epB[ii*2+0], colorBits, 8); - epB[ii*2+1] = bitRangeConvert(epB[ii*2+1], colorBits, 8); - } - - if (mi.alphaBits) - { - const uint8_t alphaBits = mi.alphaBits + modePBits; - - for (uint8_t ii = 0; ii < mi.numSubsets; ++ii) - { - epA[ii*2+0] = bitRangeConvert(epA[ii*2+0], alphaBits, 8); - epA[ii*2+1] = bitRangeConvert(epA[ii*2+1], alphaBits, 8); - } - } - - const bool hasIndexBits1 = 0 != mi.indexBits[1]; - - const uint8_t* factors[] = - { - s_bptcFactors[mi.indexBits[0]-2], - hasIndexBits1 ? s_bptcFactors[mi.indexBits[1]-2] : factors[0], - }; - - uint16_t offset[2] = - { - 0, - uint16_t(mi.numSubsets*(16*mi.indexBits[0]-1) ), - }; - - for (uint8_t yy = 0; yy < 4; ++yy) - { - for (uint8_t xx = 0; xx < 4; ++xx) - { - const uint8_t idx = yy*4+xx; - - uint8_t subsetIndex = 0; - uint8_t indexAnchor = 0; - switch (mi.numSubsets) - { - case 2: - subsetIndex = (s_bptcP2[partitionSetIdx] >> idx) & 1; - indexAnchor = 0 != subsetIndex ? s_bptcA2[partitionSetIdx] : 0; - break; - - case 3: - subsetIndex = (s_bptcP3[partitionSetIdx] >> (2*idx) ) & 3; - indexAnchor = 0 != subsetIndex ? s_bptcA3[subsetIndex-1][partitionSetIdx] : 0; - break; - - default: - break; - } - - const uint8_t anchor = idx == indexAnchor; - const uint8_t num[2] = - { - uint8_t( mi.indexBits[0] - anchor ), - uint8_t(hasIndexBits1 ? mi.indexBits[1] - anchor : 0), - }; - - const uint8_t index[2] = - { - (uint8_t)bit.peek(offset[0], num[0]), - hasIndexBits1 ? (uint8_t)bit.peek(offset[1], num[1]) : index[0], - }; - - offset[0] += num[0]; - offset[1] += num[1]; - - const uint8_t fc = factors[ indexSelectionMode][index[ indexSelectionMode] ]; - const uint8_t fa = factors[!indexSelectionMode][index[!indexSelectionMode] ]; - - const uint8_t fca = 64 - fc; - const uint8_t fcb = fc; - const uint8_t faa = 64 - fa; - const uint8_t fab = fa; - - subsetIndex *= 2; - uint8_t rr = uint8_t(uint16_t(epR[subsetIndex]*fca + epR[subsetIndex + 1]*fcb + 32) >> 6); - uint8_t gg = uint8_t(uint16_t(epG[subsetIndex]*fca + epG[subsetIndex + 1]*fcb + 32) >> 6); - uint8_t bb = uint8_t(uint16_t(epB[subsetIndex]*fca + epB[subsetIndex + 1]*fcb + 32) >> 6); - uint8_t aa = uint8_t(uint16_t(epA[subsetIndex]*faa + epA[subsetIndex + 1]*fab + 32) >> 6); - - switch (rotationMode) - { - case 1: bx::swap(aa, rr); break; - case 2: bx::swap(aa, gg); break; - case 3: bx::swap(aa, bb); break; - default: break; - }; - - uint8_t* bgra = &_dst[idx*4]; - bgra[0] = bb; - bgra[1] = gg; - bgra[2] = rr; - bgra[3] = aa; - } - } - } - - // ATC - // - static void decodeBlockATC(uint8_t _dst[16*4], const uint8_t _src[8]) - { - if (!BX_ENABLED(BIMG_DECODE_ATC) ) - { - return; - } - - uint8_t colors[4*4]; - - uint32_t c0 = _src[0] | (_src[1] << 8); - uint32_t c1 = _src[2] | (_src[3] << 8); - - if (0 == (c0 & 0x8000) ) - { - colors[ 0] = bitRangeConvert( (c0>> 0)&0x1f, 5, 8); - colors[ 1] = bitRangeConvert( (c0>> 5)&0x1f, 5, 8); - colors[ 2] = bitRangeConvert( (c0>>10)&0x1f, 5, 8); - - colors[12] = bitRangeConvert( (c1>> 0)&0x1f, 5, 8); - colors[13] = bitRangeConvert( (c1>> 5)&0x3f, 6, 8); - colors[14] = bitRangeConvert( (c1>>11)&0x1f, 5, 8); - - colors[ 4] = (2 * colors[0] + colors[12]) / 3; - colors[ 5] = (2 * colors[1] + colors[13]) / 3; - colors[ 6] = (2 * colors[2] + colors[14]) / 3; - - colors[ 8] = (colors[0] + 2 * colors[12]) / 3; - colors[ 9] = (colors[1] + 2 * colors[13]) / 3; - colors[10] = (colors[2] + 2 * colors[14]) / 3; - } - else - { - colors[ 0] = 0; - colors[ 1] = 0; - colors[ 2] = 0; - - colors[ 8] = bitRangeConvert( (c0>> 0)&0x1f, 5, 8); - colors[ 9] = bitRangeConvert( (c0>> 5)&0x1f, 5, 8); - colors[10] = bitRangeConvert( (c0>>10)&0x1f, 5, 8); - - colors[12] = bitRangeConvert( (c1>> 0)&0x1f, 5, 8); - colors[13] = bitRangeConvert( (c1>> 5)&0x3f, 6, 8); - colors[14] = bitRangeConvert( (c1>>11)&0x1f, 5, 8); - - colors[ 4] = colors[ 8] - colors[12] / 4; - colors[ 5] = colors[ 9] - colors[13] / 4; - colors[ 6] = colors[10] - colors[14] / 4; - } - - for (uint32_t ii = 0, next = 8*4; ii < 16*4; ii += 4, next += 2) - { - int32_t idx = ( (_src[next>>3] >> (next & 7) ) & 3) * 4; - _dst[ii+0] = colors[idx+0]; - _dst[ii+1] = colors[idx+1]; - _dst[ii+2] = colors[idx+2]; - _dst[ii+3] = colors[idx+3]; - } - } - - static const int32_t s_etc1Mod[8][4] = - { - { 2, 8, -2, -8 }, - { 5, 17, -5, -17 }, - { 9, 29, -9, -29 }, - { 13, 42, -13, -42 }, - { 18, 60, -18, -60 }, - { 24, 80, -24, -80 }, - { 33, 106, -33, -106 }, - { 47, 183, -47, -183 }, - }; - - static const uint8_t s_etc2Mod[] = { 3, 6, 11, 16, 23, 32, 41, 64 }; - - static uint8_t uint8_sat(int32_t _a) - { - using namespace bx; - const uint32_t min = uint32_imin(_a, 255); - const uint32_t result = uint32_imax(min, 0); - return (uint8_t)result; - } - - static uint8_t uint8_satadd(int32_t _a, int32_t _b) - { - const int32_t add = _a + _b; - return uint8_sat(add); - } - - static void decodeBlockEtc2ModeT(uint8_t _dst[16*4], const uint8_t _src[8]) - { - uint8_t rgb[16]; - - // 0 1 2 3 4 5 6 7 - // 7654321076543210765432107654321076543210765432107654321076543210 - // ...rr.rrggggbbbbrrrrggggbbbbDD.Dmmmmmmmmmmmmmmmmllllllllllllllll - // ^ ^ ^ ^ ^ - // +-- c0 +-- c1 | +-- msb +-- lsb - // +-- dist - - rgb[ 0] = ( (_src[0] >> 1) & 0xc) - | (_src[0] & 0x3) - ; - rgb[ 1] = _src[1] >> 4; - rgb[ 2] = _src[1] & 0xf; - - rgb[ 8] = _src[2] >> 4; - rgb[ 9] = _src[2] & 0xf; - rgb[10] = _src[3] >> 4; - - rgb[ 0] = bitRangeConvert(rgb[ 0], 4, 8); - rgb[ 1] = bitRangeConvert(rgb[ 1], 4, 8); - rgb[ 2] = bitRangeConvert(rgb[ 2], 4, 8); - rgb[ 8] = bitRangeConvert(rgb[ 8], 4, 8); - rgb[ 9] = bitRangeConvert(rgb[ 9], 4, 8); - rgb[10] = bitRangeConvert(rgb[10], 4, 8); - - uint8_t dist = ((_src[3] >> 1) & 0x6) | (_src[3] & 0x1); - int32_t mod = s_etc2Mod[dist]; - - rgb[ 4] = uint8_satadd(rgb[ 8], mod); - rgb[ 5] = uint8_satadd(rgb[ 9], mod); - rgb[ 6] = uint8_satadd(rgb[10], mod); - - rgb[12] = uint8_satadd(rgb[ 8], -mod); - rgb[13] = uint8_satadd(rgb[ 9], -mod); - rgb[14] = uint8_satadd(rgb[10], -mod); - - uint32_t indexMsb = (_src[4]<<8) | _src[5]; - uint32_t indexLsb = (_src[6]<<8) | _src[7]; - - for (uint32_t ii = 0; ii < 16; ++ii) - { - const uint32_t idx = (ii&0xc) | ( (ii & 0x3)<<4); - const uint32_t lsbi = indexLsb & 1; - const uint32_t msbi = (indexMsb & 1)<<1; - const uint32_t pal = (lsbi | msbi)<<2; - - _dst[idx + 0] = rgb[pal+2]; - _dst[idx + 1] = rgb[pal+1]; - _dst[idx + 2] = rgb[pal+0]; - _dst[idx + 3] = 255; - - indexLsb >>= 1; - indexMsb >>= 1; - } - } - - static void decodeBlockEtc2ModeH(uint8_t _dst[16*4], const uint8_t _src[8]) - { - uint8_t rgb[16]; - - // 0 1 2 3 4 5 6 7 - // 7654321076543210765432107654321076543210765432107654321076543210 - // .rrrrggg...gb.bbbrrrrggggbbbbD.Dmmmmmmmmmmmmmmmmllllllllllllllll - // ^ ^ ^ ^ ^ - // +-- c0 +-- c1 | +-- msb +-- lsb - // +-- dist - - rgb[ 0] = (_src[0] >> 3) & 0xf; - rgb[ 1] = ( (_src[0] << 1) & 0xe) - | ( (_src[1] >> 4) & 0x1) - ; - rgb[ 2] = (_src[1] & 0x8) - | ( (_src[1] << 1) & 0x6) - | (_src[2] >> 7) - ; - - rgb[ 8] = (_src[2] >> 3) & 0xf; - rgb[ 9] = ( (_src[2] << 1) & 0xe) - | (_src[3] >> 7) - ; - rgb[10] = (_src[3] >> 3) & 0xf; - - rgb[ 0] = bitRangeConvert(rgb[ 0], 4, 8); - rgb[ 1] = bitRangeConvert(rgb[ 1], 4, 8); - rgb[ 2] = bitRangeConvert(rgb[ 2], 4, 8); - rgb[ 8] = bitRangeConvert(rgb[ 8], 4, 8); - rgb[ 9] = bitRangeConvert(rgb[ 9], 4, 8); - rgb[10] = bitRangeConvert(rgb[10], 4, 8); - - uint32_t col0 = uint32_t(rgb[0]<<16) | uint32_t(rgb[1]<<8) | uint32_t(rgb[ 2]); - uint32_t col1 = uint32_t(rgb[8]<<16) | uint32_t(rgb[9]<<8) | uint32_t(rgb[10]); - uint8_t dist = (_src[3] & 0x4) | ((_src[3]<<1)&0x2) | (col0 >= col1); - int32_t mod = s_etc2Mod[dist]; - - rgb[ 4] = uint8_satadd(rgb[ 0], -mod); - rgb[ 5] = uint8_satadd(rgb[ 1], -mod); - rgb[ 6] = uint8_satadd(rgb[ 2], -mod); - - rgb[ 0] = uint8_satadd(rgb[ 0], mod); - rgb[ 1] = uint8_satadd(rgb[ 1], mod); - rgb[ 2] = uint8_satadd(rgb[ 2], mod); - - rgb[12] = uint8_satadd(rgb[ 8], -mod); - rgb[13] = uint8_satadd(rgb[ 9], -mod); - rgb[14] = uint8_satadd(rgb[10], -mod); - - rgb[ 8] = uint8_satadd(rgb[ 8], mod); - rgb[ 9] = uint8_satadd(rgb[ 9], mod); - rgb[10] = uint8_satadd(rgb[10], mod); - - uint32_t indexMsb = (_src[4]<<8) | _src[5]; - uint32_t indexLsb = (_src[6]<<8) | _src[7]; - - for (uint32_t ii = 0; ii < 16; ++ii) - { - const uint32_t idx = (ii&0xc) | ( (ii & 0x3)<<4); - const uint32_t lsbi = indexLsb & 1; - const uint32_t msbi = (indexMsb & 1)<<1; - const uint32_t pal = (lsbi | msbi)<<2; - - _dst[idx + 0] = rgb[pal+2]; - _dst[idx + 1] = rgb[pal+1]; - _dst[idx + 2] = rgb[pal+0]; - _dst[idx + 3] = 255; - - indexLsb >>= 1; - indexMsb >>= 1; - } - } - - static void decodeBlockEtc2ModePlanar(uint8_t _dst[16*4], const uint8_t _src[8]) - { - // 0 1 2 3 4 5 6 7 - // 7654321076543210765432107654321076543210765432107654321076543210 - // .rrrrrrg.ggggggb...bb.bbbrrrrr.rgggggggbbbbbbrrrrrrgggggggbbbbbb - // ^ ^ ^ - // +-- c0 +-- cH +-- cV - - uint8_t c0[3]; - uint8_t cH[3]; - uint8_t cV[3]; - - c0[0] = (_src[0] >> 1) & 0x3f; - c0[1] = ( (_src[0] & 1) << 6) - | ( (_src[1] >> 1) & 0x3f) - ; - c0[2] = ( (_src[1] & 1) << 5) - | ( (_src[2] & 0x18) ) - | ( (_src[2] << 1) & 6) - | ( (_src[3] >> 7) ) - ; - - cH[0] = ( (_src[3] >> 1) & 0x3e) - | (_src[3] & 1) - ; - cH[1] = _src[4] >> 1; - cH[2] = ( (_src[4] & 1) << 5) - | (_src[5] >> 3) - ; - - cV[0] = ( (_src[5] & 0x7) << 3) - | (_src[6] >> 5) - ; - cV[1] = ( (_src[6] & 0x1f) << 2) - | (_src[7] >> 5) - ; - cV[2] = _src[7] & 0x3f; - - c0[0] = bitRangeConvert(c0[0], 6, 8); - c0[1] = bitRangeConvert(c0[1], 7, 8); - c0[2] = bitRangeConvert(c0[2], 6, 8); - - cH[0] = bitRangeConvert(cH[0], 6, 8); - cH[1] = bitRangeConvert(cH[1], 7, 8); - cH[2] = bitRangeConvert(cH[2], 6, 8); - - cV[0] = bitRangeConvert(cV[0], 6, 8); - cV[1] = bitRangeConvert(cV[1], 7, 8); - cV[2] = bitRangeConvert(cV[2], 6, 8); - - int16_t dy[3]; - dy[0] = cV[0] - c0[0]; - dy[1] = cV[1] - c0[1]; - dy[2] = cV[2] - c0[2]; - - int16_t sx[3]; - sx[0] = int16_t(c0[0])<<2; - sx[1] = int16_t(c0[1])<<2; - sx[2] = int16_t(c0[2])<<2; - - int16_t ex[3]; - ex[0] = int16_t(cH[0])<<2; - ex[1] = int16_t(cH[1])<<2; - ex[2] = int16_t(cH[2])<<2; - - for (int32_t vv = 0; vv < 4; ++vv) - { - int16_t dx[3]; - dx[0] = (ex[0] - sx[0])>>2; - dx[1] = (ex[1] - sx[1])>>2; - dx[2] = (ex[2] - sx[2])>>2; - - for (int32_t hh = 0; hh < 4; ++hh) - { - const uint32_t idx = (vv<<4) + (hh<<2); - - _dst[idx + 0] = uint8_sat( (sx[2] + dx[2]*hh)>>2); - _dst[idx + 1] = uint8_sat( (sx[1] + dx[1]*hh)>>2); - _dst[idx + 2] = uint8_sat( (sx[0] + dx[0]*hh)>>2); - _dst[idx + 3] = 255; - } - - sx[0] += dy[0]; - sx[1] += dy[1]; - sx[2] += dy[2]; - - ex[0] += dy[0]; - ex[1] += dy[1]; - ex[2] += dy[2]; - } - } - - static void decodeBlockEtc12(uint8_t _dst[16*4], const uint8_t _src[8]) - { - if (!BX_ENABLED(BIMG_DECODE_ETC1 || BIMG_DECODE_ETC2) ) - { - return; - } - - bool flipBit = 0 != (_src[3] & 0x1); - bool diffBit = 0 != (_src[3] & 0x2); - - uint8_t rgb[8]; - - if (diffBit) - { - rgb[0] = _src[0] >> 3; - rgb[1] = _src[1] >> 3; - rgb[2] = _src[2] >> 3; - - int8_t diff[3]; - diff[0] = int8_t( (_src[0] & 0x7)<<5)>>5; - diff[1] = int8_t( (_src[1] & 0x7)<<5)>>5; - diff[2] = int8_t( (_src[2] & 0x7)<<5)>>5; - - int8_t rr = rgb[0] + diff[0]; - int8_t gg = rgb[1] + diff[1]; - int8_t bb = rgb[2] + diff[2]; - - // Etc2 3-modes - if (rr < 0 || rr > 31) - { - decodeBlockEtc2ModeT(_dst, _src); - return; - } - if (gg < 0 || gg > 31) - { - decodeBlockEtc2ModeH(_dst, _src); - return; - } - if (bb < 0 || bb > 31) - { - decodeBlockEtc2ModePlanar(_dst, _src); - return; - } - - // Etc1 - rgb[0] = bitRangeConvert(rgb[0], 5, 8); - rgb[1] = bitRangeConvert(rgb[1], 5, 8); - rgb[2] = bitRangeConvert(rgb[2], 5, 8); - rgb[4] = bitRangeConvert(rr, 5, 8); - rgb[5] = bitRangeConvert(gg, 5, 8); - rgb[6] = bitRangeConvert(bb, 5, 8); - } - else - { - rgb[0] = _src[0] >> 4; - rgb[1] = _src[1] >> 4; - rgb[2] = _src[2] >> 4; - - rgb[4] = _src[0] & 0xf; - rgb[5] = _src[1] & 0xf; - rgb[6] = _src[2] & 0xf; - - rgb[0] = bitRangeConvert(rgb[0], 4, 8); - rgb[1] = bitRangeConvert(rgb[1], 4, 8); - rgb[2] = bitRangeConvert(rgb[2], 4, 8); - rgb[4] = bitRangeConvert(rgb[4], 4, 8); - rgb[5] = bitRangeConvert(rgb[5], 4, 8); - rgb[6] = bitRangeConvert(rgb[6], 4, 8); - } - - uint32_t table[2]; - table[0] = (_src[3] >> 5) & 0x7; - table[1] = (_src[3] >> 2) & 0x7; - - uint32_t indexMsb = (_src[4]<<8) | _src[5]; - uint32_t indexLsb = (_src[6]<<8) | _src[7]; - - if (flipBit) - { - for (uint32_t ii = 0; ii < 16; ++ii) - { - const uint32_t block = (ii>>1)&1; - const uint32_t color = block<<2; - const uint32_t idx = (ii&0xc) | ( (ii & 0x3)<<4); - const uint32_t lsbi = indexLsb & 1; - const uint32_t msbi = (indexMsb & 1)<<1; - const int32_t mod = s_etc1Mod[table[block] ][lsbi | msbi]; - - _dst[idx + 0] = uint8_satadd(rgb[color+2], mod); - _dst[idx + 1] = uint8_satadd(rgb[color+1], mod); - _dst[idx + 2] = uint8_satadd(rgb[color+0], mod); - _dst[idx + 3] = 255; - - indexLsb >>= 1; - indexMsb >>= 1; - } - } - else - { - for (uint32_t ii = 0; ii < 16; ++ii) - { - const uint32_t block = ii>>3; - const uint32_t color = block<<2; - const uint32_t idx = (ii&0xc) | ( (ii & 0x3)<<4); - const uint32_t lsbi = indexLsb & 1; - const uint32_t msbi = (indexMsb & 1)<<1; - const int32_t mod = s_etc1Mod[table[block] ][lsbi | msbi]; - - _dst[idx + 0] = uint8_satadd(rgb[color+2], mod); - _dst[idx + 1] = uint8_satadd(rgb[color+1], mod); - _dst[idx + 2] = uint8_satadd(rgb[color+0], mod); - _dst[idx + 3] = 255; - - indexLsb >>= 1; - indexMsb >>= 1; - } - } - } - - static const int8_t s_etc2aMod[16][8] = - { - { -3, -6, -9, -15, 2, 5, 8, 14 }, - { -3, -7, -10, -13, 2, 6, 9, 12 }, - { -2, -5, -8, -13, 1, 4, 7, 12 }, - { -2, -4, -6, -13, 1, 3, 5, 12 }, - { -3, -6, -8, -12, 2, 5, 7, 11 }, - { -3, -7, -9, -11, 2, 6, 8, 10 }, - { -4, -7, -8, -11, 3, 6, 7, 10 }, - { -3, -5, -8, -11, 2, 4, 7, 10 }, - { -2, -6, -8, -10, 1, 5, 7, 9 }, - { -2, -5, -8, -10, 1, 4, 7, 9 }, - { -2, -4, -8, -10, 1, 3, 7, 9 }, - { -2, -5, -7, -10, 1, 4, 6, 9 }, - { -3, -4, -7, -10, 2, 3, 6, 9 }, - { -1, -2, -3, -10, 0, 1, 2, 9 }, - { -4, -6, -8, -9, 3, 5, 7, 8 }, - { -3, -5, -7, -9, 2, 4, 6, 8 } - }; - - void decodeBlockEtc2Alpha(uint8_t _dst[16 * 4], const uint8_t _src[8]) - { - if (!BX_ENABLED(BIMG_DECODE_ETC2)) - { - return; - } - - const int32_t bc = _src[0]; - const int8_t *modTable = s_etc2aMod[_src[1] & 0x0f]; - const int32_t mult = (_src[1] & 0xf0) >> 4; - const uint64_t indices = ((uint64_t)_src[2] << 40) - | ((uint64_t)_src[3] << 32) - | ((uint64_t)_src[4] << 24) - | ((uint64_t)_src[5] << 16) - | ((uint64_t)_src[6] << 8) - | _src[7]; - - for (int ii = 0; ii < 16; ii++) { - const uint32_t idx = (ii & 0xc) | ((ii & 0x3) << 4); - const int32_t mod = modTable[(indices >> (45 - ii * 3)) & 0x7]; - - _dst[idx + 3] = uint8_satadd(bc, mod*mult); - } - } - - - static const uint8_t s_pvrtcFactors[16][4] = - { - { 4, 4, 4, 4 }, - { 2, 6, 2, 6 }, - { 8, 0, 8, 0 }, - { 6, 2, 6, 2 }, - - { 2, 2, 6, 6 }, - { 1, 3, 3, 9 }, - { 4, 0, 12, 0 }, - { 3, 1, 9, 3 }, - - { 8, 8, 0, 0 }, - { 4, 12, 0, 0 }, - { 16, 0, 0, 0 }, - { 12, 4, 0, 0 }, - - { 6, 6, 2, 2 }, - { 3, 9, 1, 3 }, - { 12, 0, 4, 0 }, - { 9, 3, 3, 1 }, - }; - - static const uint8_t s_pvrtcWeights[8][4] = - { - { 8, 0, 8, 0 }, - { 5, 3, 5, 3 }, - { 3, 5, 3, 5 }, - { 0, 8, 0, 8 }, - - { 8, 0, 8, 0 }, - { 4, 4, 4, 4 }, - { 4, 4, 4, 4 }, - { 0, 8, 0, 8 }, - }; - - uint32_t morton2d(uint32_t _x, uint32_t _y) - { - using namespace bx; - const uint32_t tmpx = uint32_part1by1(_x); - const uint32_t xbits = uint32_sll(tmpx, 1); - const uint32_t ybits = uint32_part1by1(_y); - const uint32_t result = uint32_or(xbits, ybits); - return result; - } - - uint32_t getColor(const uint8_t _src[8]) - { - return 0 - | _src[7]<<24 - | _src[6]<<16 - | _src[5]<<8 - | _src[4] - ; - } - - static void decodeBlockPtc14RgbAddA(uint32_t _block, uint32_t* _r, uint32_t* _g, uint32_t* _b, uint8_t _factor) - { - if (0 != (_block & (1<<15) ) ) - { - *_r += bitRangeConvert( (_block >> 10) & 0x1f, 5, 8) * _factor; - *_g += bitRangeConvert( (_block >> 5) & 0x1f, 5, 8) * _factor; - *_b += bitRangeConvert( (_block >> 1) & 0x0f, 4, 8) * _factor; - } - else - { - *_r += bitRangeConvert( (_block >> 8) & 0xf, 4, 8) * _factor; - *_g += bitRangeConvert( (_block >> 4) & 0xf, 4, 8) * _factor; - *_b += bitRangeConvert( (_block >> 1) & 0x7, 3, 8) * _factor; - } - } - - static void decodeBlockPtc14RgbAddB(uint32_t _block, uint32_t* _r, uint32_t* _g, uint32_t* _b, uint8_t _factor) - { - if (0 != (_block & (1<<31) ) ) - { - *_r += bitRangeConvert( (_block >> 26) & 0x1f, 5, 8) * _factor; - *_g += bitRangeConvert( (_block >> 21) & 0x1f, 5, 8) * _factor; - *_b += bitRangeConvert( (_block >> 16) & 0x1f, 5, 8) * _factor; - } - else - { - *_r += bitRangeConvert( (_block >> 24) & 0xf, 4, 8) * _factor; - *_g += bitRangeConvert( (_block >> 20) & 0xf, 4, 8) * _factor; - *_b += bitRangeConvert( (_block >> 16) & 0xf, 4, 8) * _factor; - } - } - - static void decodeBlockPtc14(uint8_t _dst[16*4], const uint8_t* _src, uint32_t _x, uint32_t _y, uint32_t _width, uint32_t _height) - { - // 0 1 2 3 4 5 6 7 - // 7654321076543210765432107654321076543210765432107654321076543210 - // mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmyrrrrrgggggbbbbbxrrrrrgggggbbbbp - // ^ ^^ ^^ ^ - // +-- modulation data |+- B color |+- A color | - // +-- B opaque +-- A opaque | - // alpha punchthrough --+ - - const uint8_t* bc = &_src[morton2d(_x, _y) * 8]; - - uint32_t mod = 0 - | bc[3]<<24 - | bc[2]<<16 - | bc[1]<<8 - | bc[0] - ; - - const bool punchthrough = !!(bc[7] & 1); - const uint8_t* weightTable = s_pvrtcWeights[4 * punchthrough]; - const uint8_t* factorTable = s_pvrtcFactors[0]; - - for (int yy = 0; yy < 4; ++yy) - { - const uint32_t yOffset = (yy < 2) ? -1 : 0; - const uint32_t y0 = (_y + yOffset) % _height; - const uint32_t y1 = (y0 + 1) % _height; - - for (int xx = 0; xx < 4; ++xx) - { - const uint32_t xOffset = (xx < 2) ? -1 : 0; - const uint32_t x0 = (_x + xOffset) % _width; - const uint32_t x1 = (x0 + 1) % _width; - - const uint32_t bc0 = getColor(&_src[morton2d(x0, y0) * 8]); - const uint32_t bc1 = getColor(&_src[morton2d(x1, y0) * 8]); - const uint32_t bc2 = getColor(&_src[morton2d(x0, y1) * 8]); - const uint32_t bc3 = getColor(&_src[morton2d(x1, y1) * 8]); - - const uint8_t f0 = factorTable[0]; - const uint8_t f1 = factorTable[1]; - const uint8_t f2 = factorTable[2]; - const uint8_t f3 = factorTable[3]; - - uint32_t ar = 0, ag = 0, ab = 0; - decodeBlockPtc14RgbAddA(bc0, &ar, &ag, &ab, f0); - decodeBlockPtc14RgbAddA(bc1, &ar, &ag, &ab, f1); - decodeBlockPtc14RgbAddA(bc2, &ar, &ag, &ab, f2); - decodeBlockPtc14RgbAddA(bc3, &ar, &ag, &ab, f3); - - uint32_t br = 0, bg = 0, bb = 0; - decodeBlockPtc14RgbAddB(bc0, &br, &bg, &bb, f0); - decodeBlockPtc14RgbAddB(bc1, &br, &bg, &bb, f1); - decodeBlockPtc14RgbAddB(bc2, &br, &bg, &bb, f2); - decodeBlockPtc14RgbAddB(bc3, &br, &bg, &bb, f3); - - const uint8_t* weight = &weightTable[(mod & 3)*4]; - const uint8_t wa = weight[0]; - const uint8_t wb = weight[1]; - - _dst[(yy*4 + xx)*4+0] = uint8_t( (ab * wa + bb * wb) >> 7); - _dst[(yy*4 + xx)*4+1] = uint8_t( (ag * wa + bg * wb) >> 7); - _dst[(yy*4 + xx)*4+2] = uint8_t( (ar * wa + br * wb) >> 7); - _dst[(yy*4 + xx)*4+3] = 255; - - mod >>= 2; - factorTable += 4; - } - } - } - - static void decodeBlockPtc14ARgbaAddA(uint32_t _block, uint32_t* _r, uint32_t* _g, uint32_t* _b, uint32_t* _a, uint8_t _factor) - { - if (0 != (_block & (1<<15) ) ) - { - *_r += bitRangeConvert( (_block >> 10) & 0x1f, 5, 8) * _factor; - *_g += bitRangeConvert( (_block >> 5) & 0x1f, 5, 8) * _factor; - *_b += bitRangeConvert( (_block >> 1) & 0x0f, 4, 8) * _factor; - *_a += 255 * _factor; - } - else - { - *_r += bitRangeConvert( (_block >> 8) & 0xf, 4, 8) * _factor; - *_g += bitRangeConvert( (_block >> 4) & 0xf, 4, 8) * _factor; - *_b += bitRangeConvert( (_block >> 1) & 0x7, 3, 8) * _factor; - *_a += bitRangeConvert( (_block >> 12) & 0x7, 3, 8) * _factor; - } - } - - static void decodeBlockPtc14ARgbaAddB(uint32_t _block, uint32_t* _r, uint32_t* _g, uint32_t* _b, uint32_t* _a, uint8_t _factor) - { - if (0 != (_block & (1<<31) ) ) - { - *_r += bitRangeConvert( (_block >> 26) & 0x1f, 5, 8) * _factor; - *_g += bitRangeConvert( (_block >> 21) & 0x1f, 5, 8) * _factor; - *_b += bitRangeConvert( (_block >> 16) & 0x1f, 5, 8) * _factor; - *_a += 255 * _factor; - } - else - { - *_r += bitRangeConvert( (_block >> 24) & 0xf, 4, 8) * _factor; - *_g += bitRangeConvert( (_block >> 20) & 0xf, 4, 8) * _factor; - *_b += bitRangeConvert( (_block >> 16) & 0xf, 4, 8) * _factor; - *_a += bitRangeConvert( (_block >> 28) & 0x7, 3, 8) * _factor; - } - } - - static void decodeBlockPtc14A(uint8_t _dst[16*4], const uint8_t* _src, uint32_t _x, uint32_t _y, uint32_t _width, uint32_t _height) - { - // 0 1 2 3 4 5 6 7 - // 7654321076543210765432107654321076543210765432107654321076543210 - // mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmyrrrrrgggggbbbbbxrrrrrgggggbbbbp - // ^ ^^ ^^ ^ - // +-- modulation data |+- B color |+- A color | - // +-- B opaque +-- A opaque | - // alpha punchthrough --+ - - const uint8_t* bc = &_src[morton2d(_x, _y) * 8]; - - uint32_t mod = 0 - | bc[3]<<24 - | bc[2]<<16 - | bc[1]<<8 - | bc[0] - ; - - const bool punchthrough = !!(bc[7] & 1); - const uint8_t* weightTable = s_pvrtcWeights[4 * punchthrough]; - const uint8_t* factorTable = s_pvrtcFactors[0]; - - for (int yy = 0; yy < 4; ++yy) - { - const uint32_t yOffset = (yy < 2) ? -1 : 0; - const uint32_t y0 = (_y + yOffset) % _height; - const uint32_t y1 = (y0 + 1) % _height; - - for (int xx = 0; xx < 4; ++xx) - { - const uint32_t xOffset = (xx < 2) ? -1 : 0; - const uint32_t x0 = (_x + xOffset) % _width; - const uint32_t x1 = (x0 + 1) % _width; - - const uint32_t bc0 = getColor(&_src[morton2d(x0, y0) * 8]); - const uint32_t bc1 = getColor(&_src[morton2d(x1, y0) * 8]); - const uint32_t bc2 = getColor(&_src[morton2d(x0, y1) * 8]); - const uint32_t bc3 = getColor(&_src[morton2d(x1, y1) * 8]); - - const uint8_t f0 = factorTable[0]; - const uint8_t f1 = factorTable[1]; - const uint8_t f2 = factorTable[2]; - const uint8_t f3 = factorTable[3]; - - uint32_t ar = 0, ag = 0, ab = 0, aa = 0; - decodeBlockPtc14ARgbaAddA(bc0, &ar, &ag, &ab, &aa, f0); - decodeBlockPtc14ARgbaAddA(bc1, &ar, &ag, &ab, &aa, f1); - decodeBlockPtc14ARgbaAddA(bc2, &ar, &ag, &ab, &aa, f2); - decodeBlockPtc14ARgbaAddA(bc3, &ar, &ag, &ab, &aa, f3); - - uint32_t br = 0, bg = 0, bb = 0, ba = 0; - decodeBlockPtc14ARgbaAddB(bc0, &br, &bg, &bb, &ba, f0); - decodeBlockPtc14ARgbaAddB(bc1, &br, &bg, &bb, &ba, f1); - decodeBlockPtc14ARgbaAddB(bc2, &br, &bg, &bb, &ba, f2); - decodeBlockPtc14ARgbaAddB(bc3, &br, &bg, &bb, &ba, f3); - - const uint8_t* weight = &weightTable[(mod & 3)*4]; - const uint8_t wa = weight[0]; - const uint8_t wb = weight[1]; - const uint8_t wc = weight[2]; - const uint8_t wd = weight[3]; - - _dst[(yy*4 + xx)*4+0] = uint8_t( (ab * wa + bb * wb) >> 7); - _dst[(yy*4 + xx)*4+1] = uint8_t( (ag * wa + bg * wb) >> 7); - _dst[(yy*4 + xx)*4+2] = uint8_t( (ar * wa + br * wb) >> 7); - _dst[(yy*4 + xx)*4+3] = uint8_t( (aa * wc + ba * wd) >> 7); - - mod >>= 2; - factorTable += 4; - } - } - } - - ImageContainer* imageAlloc(bx::AllocatorI* _allocator, TextureFormat::Enum _format, uint16_t _width, uint16_t _height, uint16_t _depth, uint16_t _numLayers, bool _cubeMap, bool _hasMips, const void* _data) - { - const ImageBlockInfo& blockInfo = getBlockInfo(_format); - const uint16_t blockWidth = blockInfo.blockWidth; - const uint16_t blockHeight = blockInfo.blockHeight; - const uint16_t minBlockX = blockInfo.minBlockX; - const uint16_t minBlockY = blockInfo.minBlockY; - - _width = bx::max(blockWidth * minBlockX, ( (_width + blockWidth - 1) / blockWidth)*blockWidth); - _height = bx::max(blockHeight * minBlockY, ( (_height + blockHeight - 1) / blockHeight)*blockHeight); - _depth = bx::max(1, _depth); - _numLayers = bx::max(1, _numLayers); - - const uint8_t numMips = _hasMips ? imageGetNumMips(_format, _width, _height, _depth) : 1; - uint32_t size = imageGetSize(NULL, _width, _height, _depth, _cubeMap, _hasMips, _numLayers, _format); - - ImageContainer* imageContainer = (ImageContainer*)BX_ALIGNED_ALLOC(_allocator, size + bx::alignUp(sizeof(ImageContainer), 16), 16); - - imageContainer->m_allocator = _allocator; - imageContainer->m_data = bx::alignPtr(imageContainer + 1, 0, 16); - imageContainer->m_format = _format; - imageContainer->m_orientation = Orientation::R0; - imageContainer->m_size = size; - imageContainer->m_offset = 0; - imageContainer->m_width = _width; - imageContainer->m_height = _height; - imageContainer->m_depth = _depth; - imageContainer->m_numLayers = _numLayers; - imageContainer->m_numMips = numMips; - imageContainer->m_hasAlpha = false; - imageContainer->m_cubeMap = _cubeMap; - imageContainer->m_ktx = false; - imageContainer->m_pvr3 = false; - imageContainer->m_ktxLE = false; - imageContainer->m_srgb = false; - - if (NULL != _data) - { - bx::memCopy(imageContainer->m_data, _data, imageContainer->m_size); - } - - return imageContainer; - - } - - void imageFree(ImageContainer* _imageContainer) - { - BX_ALIGNED_FREE(_imageContainer->m_allocator, _imageContainer, 16); - } - -// DDS -#define DDS_MAGIC BX_MAKEFOURCC('D', 'D', 'S', ' ') -#define DDS_HEADER_SIZE 124 - -#define DDS_DXT1 BX_MAKEFOURCC('D', 'X', 'T', '1') -#define DDS_DXT2 BX_MAKEFOURCC('D', 'X', 'T', '2') -#define DDS_DXT3 BX_MAKEFOURCC('D', 'X', 'T', '3') -#define DDS_DXT4 BX_MAKEFOURCC('D', 'X', 'T', '4') -#define DDS_DXT5 BX_MAKEFOURCC('D', 'X', 'T', '5') -#define DDS_ATI1 BX_MAKEFOURCC('A', 'T', 'I', '1') -#define DDS_BC4U BX_MAKEFOURCC('B', 'C', '4', 'U') -#define DDS_ATI2 BX_MAKEFOURCC('A', 'T', 'I', '2') -#define DDS_BC5U BX_MAKEFOURCC('B', 'C', '5', 'U') -#define DDS_DX10 BX_MAKEFOURCC('D', 'X', '1', '0') - -#define DDS_ETC1 BX_MAKEFOURCC('E', 'T', 'C', '1') -#define DDS_ETC2 BX_MAKEFOURCC('E', 'T', 'C', '2') -#define DDS_ET2A BX_MAKEFOURCC('E', 'T', '2', 'A') -#define DDS_PTC2 BX_MAKEFOURCC('P', 'T', 'C', '2') -#define DDS_PTC4 BX_MAKEFOURCC('P', 'T', 'C', '4') -#define DDS_ATC BX_MAKEFOURCC('A', 'T', 'C', ' ') -#define DDS_ATCE BX_MAKEFOURCC('A', 'T', 'C', 'E') -#define DDS_ATCI BX_MAKEFOURCC('A', 'T', 'C', 'I') -#define DDS_ASTC4x4 BX_MAKEFOURCC('A', 'S', '4', '4') -#define DDS_ASTC5x4 BX_MAKEFOURCC('A', 'S', '5', '4') -#define DDS_ASTC5x5 BX_MAKEFOURCC('A', 'S', '5', '5') -#define DDS_ASTC6x5 BX_MAKEFOURCC('A', 'S', '6', '5') -#define DDS_ASTC6x6 BX_MAKEFOURCC('A', 'S', '6', '6') -#define DDS_ASTC8x5 BX_MAKEFOURCC('A', 'S', '8', '5') -#define DDS_ASTC8x6 BX_MAKEFOURCC('A', 'S', '8', '6') -#define DDS_ASTC8x8 BX_MAKEFOURCC('A', 'S', '8', '8') -#define DDS_ASTC10x5 BX_MAKEFOURCC('A', 'S', ':', '5') -#define DDS_ASTC10x6 BX_MAKEFOURCC('A', 'S', ':', '6') -#define DDS_ASTC10x8 BX_MAKEFOURCC('A', 'S', ':', '8') -#define DDS_ASTC10x10 BX_MAKEFOURCC('A', 'S', ':', ':') -#define DDS_ASTC12x10 BX_MAKEFOURCC('A', 'S', '<', ':') -#define DDS_ASTC12x12 BX_MAKEFOURCC('A', 'S', '<', '<') - -#define DDS_R8G8B8 20 -#define DDS_A8R8G8B8 21 -#define DDS_R5G6B5 23 -#define DDS_A1R5G5B5 25 -#define DDS_A4R4G4B4 26 -#define DDS_A2B10G10R10 31 -#define DDS_G16R16 34 -#define DDS_A2R10G10B10 35 -#define DDS_A16B16G16R16 36 -#define DDS_A8L8 51 -#define DDS_R16F 111 -#define DDS_G16R16F 112 -#define DDS_A16B16G16R16F 113 -#define DDS_R32F 114 -#define DDS_G32R32F 115 -#define DDS_A32B32G32R32F 116 - -#define DDS_FORMAT_R32G32B32A32_FLOAT 2 -#define DDS_FORMAT_R32G32B32A32_UINT 3 -#define DDS_FORMAT_R16G16B16A16_FLOAT 10 -#define DDS_FORMAT_R16G16B16A16_UNORM 11 -#define DDS_FORMAT_R16G16B16A16_UINT 12 -#define DDS_FORMAT_R32G32_FLOAT 16 -#define DDS_FORMAT_R32G32_UINT 17 -#define DDS_FORMAT_R10G10B10A2_UNORM 24 -#define DDS_FORMAT_R11G11B10_FLOAT 26 -#define DDS_FORMAT_R8G8B8A8_UNORM 28 -#define DDS_FORMAT_R8G8B8A8_UNORM_SRGB 29 -#define DDS_FORMAT_R16G16_FLOAT 34 -#define DDS_FORMAT_R16G16_UNORM 35 -#define DDS_FORMAT_R32_FLOAT 41 -#define DDS_FORMAT_R32_UINT 42 -#define DDS_FORMAT_R8G8_UNORM 49 -#define DDS_FORMAT_R16_FLOAT 54 -#define DDS_FORMAT_R16_UNORM 56 -#define DDS_FORMAT_R8_UNORM 61 -#define DDS_FORMAT_R1_UNORM 66 -#define DDS_FORMAT_BC1_UNORM 71 -#define DDS_FORMAT_BC1_UNORM_SRGB 72 -#define DDS_FORMAT_BC2_UNORM 74 -#define DDS_FORMAT_BC2_UNORM_SRGB 75 -#define DDS_FORMAT_BC3_UNORM 77 -#define DDS_FORMAT_BC3_UNORM_SRGB 78 -#define DDS_FORMAT_BC4_UNORM 80 -#define DDS_FORMAT_BC5_UNORM 83 -#define DDS_FORMAT_B5G6R5_UNORM 85 -#define DDS_FORMAT_B5G5R5A1_UNORM 86 -#define DDS_FORMAT_B8G8R8A8_UNORM 87 -#define DDS_FORMAT_B8G8R8A8_UNORM_SRGB 91 -#define DDS_FORMAT_BC6H_SF16 96 -#define DDS_FORMAT_BC7_UNORM 98 -#define DDS_FORMAT_BC7_UNORM_SRGB 99 -#define DDS_FORMAT_B4G4R4A4_UNORM 115 - -#define DDS_DX10_DIMENSION_TEXTURE2D 3 -#define DDS_DX10_DIMENSION_TEXTURE3D 4 -#define DDS_DX10_MISC_TEXTURECUBE 4 - -#define DDSD_CAPS 0x00000001 -#define DDSD_HEIGHT 0x00000002 -#define DDSD_WIDTH 0x00000004 -#define DDSD_PITCH 0x00000008 -#define DDSD_PIXELFORMAT 0x00001000 -#define DDSD_MIPMAPCOUNT 0x00020000 -#define DDSD_LINEARSIZE 0x00080000 -#define DDSD_DEPTH 0x00800000 - -#define DDPF_ALPHAPIXELS 0x00000001 -#define DDPF_ALPHA 0x00000002 -#define DDPF_FOURCC 0x00000004 -#define DDPF_INDEXED 0x00000020 -#define DDPF_RGB 0x00000040 -#define DDPF_YUV 0x00000200 -#define DDPF_LUMINANCE 0x00020000 -#define DDPF_BUMPDUDV 0x00080000 - -#define DDSCAPS_COMPLEX 0x00000008 -#define DDSCAPS_TEXTURE 0x00001000 -#define DDSCAPS_MIPMAP 0x00400000 - -#define DDSCAPS2_VOLUME 0x00200000 -#define DDSCAPS2_CUBEMAP 0x00000200 -#define DDSCAPS2_CUBEMAP_POSITIVEX 0x00000400 -#define DDSCAPS2_CUBEMAP_NEGATIVEX 0x00000800 -#define DDSCAPS2_CUBEMAP_POSITIVEY 0x00001000 -#define DDSCAPS2_CUBEMAP_NEGATIVEY 0x00002000 -#define DDSCAPS2_CUBEMAP_POSITIVEZ 0x00004000 -#define DDSCAPS2_CUBEMAP_NEGATIVEZ 0x00008000 - -#define DSCAPS2_CUBEMAP_ALLSIDES (0 \ - | DDSCAPS2_CUBEMAP_POSITIVEX \ - | DDSCAPS2_CUBEMAP_NEGATIVEX \ - | DDSCAPS2_CUBEMAP_POSITIVEY \ - | DDSCAPS2_CUBEMAP_NEGATIVEY \ - | DDSCAPS2_CUBEMAP_POSITIVEZ \ - | DDSCAPS2_CUBEMAP_NEGATIVEZ \ - ) - - struct TranslateDdsFormat - { - uint32_t m_format; - TextureFormat::Enum m_textureFormat; - bool m_srgb; - }; - - static const TranslateDdsFormat s_translateDdsFourccFormat[] = - { - { DDS_DXT1, TextureFormat::BC1, false }, - { DDS_DXT2, TextureFormat::BC2, false }, - { DDS_DXT3, TextureFormat::BC2, false }, - { DDS_DXT4, TextureFormat::BC3, false }, - { DDS_DXT5, TextureFormat::BC3, false }, - { DDS_ATI1, TextureFormat::BC4, false }, - { DDS_BC4U, TextureFormat::BC4, false }, - { DDS_ATI2, TextureFormat::BC5, false }, - { DDS_BC5U, TextureFormat::BC5, false }, - - { DDS_ETC1, TextureFormat::ETC1, false }, - { DDS_ETC2, TextureFormat::ETC2, false }, - { DDS_ET2A, TextureFormat::ETC2A, false }, - { DDS_PTC2, TextureFormat::PTC12A, false }, - { DDS_PTC4, TextureFormat::PTC14A, false }, - { DDS_ATC , TextureFormat::ATC, false }, - { DDS_ATCE, TextureFormat::ATCE, false }, - { DDS_ATCI, TextureFormat::ATCI, false }, - { DDS_ASTC4x4, TextureFormat::ASTC4x4, false }, - { DDS_ASTC5x4, TextureFormat::ASTC5x4, false }, - { DDS_ASTC5x5, TextureFormat::ASTC5x5, false }, - { DDS_ASTC6x5, TextureFormat::ASTC6x5, false }, - { DDS_ASTC6x6, TextureFormat::ASTC6x6, false }, - { DDS_ASTC8x5, TextureFormat::ASTC8x5, false }, - { DDS_ASTC8x6, TextureFormat::ASTC8x6, false }, - { DDS_ASTC8x8, TextureFormat::ASTC8x8, false }, - { DDS_ASTC10x5, TextureFormat::ASTC10x5, false }, - { DDS_ASTC10x6, TextureFormat::ASTC10x6, false }, - { DDS_ASTC10x8, TextureFormat::ASTC10x8, false }, - { DDS_ASTC10x10, TextureFormat::ASTC10x10,false }, - { DDS_ASTC12x10, TextureFormat::ASTC12x10,false }, - { DDS_ASTC12x12, TextureFormat::ASTC12x12,false }, - - { DDS_A16B16G16R16, TextureFormat::RGBA16, false }, - { DDS_A16B16G16R16F, TextureFormat::RGBA16F, false }, - { DDPF_RGB|DDPF_ALPHAPIXELS, TextureFormat::BGRA8, false }, - { DDPF_INDEXED, TextureFormat::R8, false }, - { DDPF_LUMINANCE, TextureFormat::R8, false }, - { DDPF_ALPHA, TextureFormat::R8, false }, - { DDS_R16F, TextureFormat::R16F, false }, - { DDS_R32F, TextureFormat::R32F, false }, - { DDS_A8L8, TextureFormat::RG8, false }, - { DDS_G16R16, TextureFormat::RG16, false }, - { DDS_G16R16F, TextureFormat::RG16F, false }, - { DDS_G32R32F, TextureFormat::RG32F, false }, - { DDS_R8G8B8, TextureFormat::RGB8, false }, - { DDS_A8R8G8B8, TextureFormat::BGRA8, false }, - { DDS_A16B16G16R16, TextureFormat::RGBA16, false }, - { DDS_A16B16G16R16F, TextureFormat::RGBA16F, false }, - { DDS_A32B32G32R32F, TextureFormat::RGBA32F, false }, - { DDS_R5G6B5, TextureFormat::B5G6R5, false }, - { DDS_R5G6B5, TextureFormat::R5G6B5, false }, - { DDS_A4R4G4B4, TextureFormat::BGRA4, false }, - { DDS_A4R4G4B4, TextureFormat::RGBA4, false }, - { DDS_A1R5G5B5, TextureFormat::BGR5A1, false }, - { DDS_A1R5G5B5, TextureFormat::RGB5A1, false }, - { DDS_A2B10G10R10, TextureFormat::RGB10A2, false }, - }; - - - static const TranslateDdsFormat s_translateDxgiFormat[] = - { - { DDS_FORMAT_BC1_UNORM, TextureFormat::BC1, false }, - { DDS_FORMAT_BC1_UNORM_SRGB, TextureFormat::BC1, true }, - { DDS_FORMAT_BC2_UNORM, TextureFormat::BC2, false }, - { DDS_FORMAT_BC2_UNORM_SRGB, TextureFormat::BC2, true }, - { DDS_FORMAT_BC3_UNORM, TextureFormat::BC3, false }, - { DDS_FORMAT_BC3_UNORM_SRGB, TextureFormat::BC3, true }, - { DDS_FORMAT_BC4_UNORM, TextureFormat::BC4, false }, - { DDS_FORMAT_BC5_UNORM, TextureFormat::BC5, false }, - { DDS_FORMAT_BC6H_SF16, TextureFormat::BC6H, false }, - { DDS_FORMAT_BC7_UNORM, TextureFormat::BC7, false }, - { DDS_FORMAT_BC7_UNORM_SRGB, TextureFormat::BC7, true }, - - { DDS_FORMAT_R1_UNORM, TextureFormat::R1, false }, - { DDS_FORMAT_R8_UNORM, TextureFormat::R8, false }, - { DDS_FORMAT_R16_UNORM, TextureFormat::R16, false }, - { DDS_FORMAT_R16_FLOAT, TextureFormat::R16F, false }, - { DDS_FORMAT_R32_UINT, TextureFormat::R32U, false }, - { DDS_FORMAT_R32_FLOAT, TextureFormat::R32F, false }, - { DDS_FORMAT_R8G8_UNORM, TextureFormat::RG8, false }, - { DDS_FORMAT_R16G16_UNORM, TextureFormat::RG16, false }, - { DDS_FORMAT_R16G16_FLOAT, TextureFormat::RG16F, false }, - { DDS_FORMAT_R32G32_UINT, TextureFormat::RG32U, false }, - { DDS_FORMAT_R32G32_FLOAT, TextureFormat::RG32F, false }, - { DDS_FORMAT_B8G8R8A8_UNORM, TextureFormat::BGRA8, false }, - { DDS_FORMAT_B8G8R8A8_UNORM_SRGB, TextureFormat::BGRA8, true }, - { DDS_FORMAT_R8G8B8A8_UNORM, TextureFormat::RGBA8, false }, - { DDS_FORMAT_R8G8B8A8_UNORM_SRGB, TextureFormat::RGBA8, true }, - { DDS_FORMAT_R16G16B16A16_UNORM, TextureFormat::RGBA16, false }, - { DDS_FORMAT_R16G16B16A16_FLOAT, TextureFormat::RGBA16F, false }, - { DDS_FORMAT_R32G32B32A32_UINT, TextureFormat::RGBA32U, false }, - { DDS_FORMAT_R32G32B32A32_FLOAT, TextureFormat::RGBA32F, false }, - { DDS_FORMAT_B5G6R5_UNORM, TextureFormat::B5G6R5, false }, - { DDS_FORMAT_B5G6R5_UNORM, TextureFormat::R5G6B5, false }, - { DDS_FORMAT_B4G4R4A4_UNORM, TextureFormat::BGRA4, false }, - { DDS_FORMAT_B4G4R4A4_UNORM, TextureFormat::RGBA4, false }, - { DDS_FORMAT_B5G5R5A1_UNORM, TextureFormat::BGR5A1, false }, - { DDS_FORMAT_B5G5R5A1_UNORM, TextureFormat::RGB5A1, false }, - { DDS_FORMAT_R10G10B10A2_UNORM, TextureFormat::RGB10A2, false }, - { DDS_FORMAT_R11G11B10_FLOAT, TextureFormat::RG11B10F, false }, - }; - - struct TranslateDdsPixelFormat - { - uint32_t m_bitCount; - uint32_t m_flags; - uint32_t m_bitmask[4]; - TextureFormat::Enum m_textureFormat; - }; - - static const TranslateDdsPixelFormat s_translateDdsPixelFormat[] = - { - { 8, DDPF_LUMINANCE, { 0x000000ff, 0x00000000, 0x00000000, 0x00000000 }, TextureFormat::R8 }, - { 16, DDPF_BUMPDUDV, { 0x000000ff, 0x0000ff00, 0x00000000, 0x00000000 }, TextureFormat::RG8S }, - { 16, DDPF_RGB, { 0x0000ffff, 0x00000000, 0x00000000, 0x00000000 }, TextureFormat::R16U }, - { 16, DDPF_RGB|DDPF_ALPHAPIXELS, { 0x0000000f, 0x000000f0, 0x00000f00, 0x0000f000 }, TextureFormat::BGRA4 }, - { 16, DDPF_RGB|DDPF_ALPHAPIXELS, { 0x00000f00, 0x000000f0, 0x0000000f, 0x0000f000 }, TextureFormat::RGBA4 }, - { 16, DDPF_RGB, { 0x0000001f, 0x000007e0, 0x0000f800, 0x00000000 }, TextureFormat::B5G6R5 }, - { 16, DDPF_RGB, { 0x0000f800, 0x000007e0, 0x0000001f, 0x00000000 }, TextureFormat::R5G6B5 }, - { 16, DDPF_RGB, { 0x0000001f, 0x000003e0, 0x00007c00, 0x00008000 }, TextureFormat::BGR5A1 }, - { 16, DDPF_RGB, { 0x00007c00, 0x000003e0, 0x0000001f, 0x00008000 }, TextureFormat::RGB5A1 }, - { 24, DDPF_RGB, { 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000 }, TextureFormat::RGB8 }, - { 24, DDPF_RGB, { 0x000000ff, 0x0000ff00, 0x00ff0000, 0x00000000 }, TextureFormat::RGB8 }, - { 32, DDPF_RGB, { 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000 }, TextureFormat::BGRA8 }, - { 32, DDPF_RGB|DDPF_ALPHAPIXELS, { 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 }, TextureFormat::RGBA8 }, - { 32, DDPF_BUMPDUDV, { 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 }, TextureFormat::RGBA8S }, - { 32, DDPF_RGB, { 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 }, TextureFormat::BGRA8 }, - { 32, DDPF_RGB|DDPF_ALPHAPIXELS, { 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 }, TextureFormat::BGRA8 }, // D3DFMT_A8R8G8B8 - { 32, DDPF_RGB|DDPF_ALPHAPIXELS, { 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000 }, TextureFormat::BGRA8 }, // D3DFMT_X8R8G8B8 - { 32, DDPF_RGB|DDPF_ALPHAPIXELS, { 0x000003ff, 0x000ffc00, 0x3ff00000, 0xc0000000 }, TextureFormat::RGB10A2 }, - { 32, DDPF_RGB, { 0x0000ffff, 0xffff0000, 0x00000000, 0x00000000 }, TextureFormat::RG16 }, - { 32, DDPF_BUMPDUDV, { 0x0000ffff, 0xffff0000, 0x00000000, 0x00000000 }, TextureFormat::RG16S }, - { 32, DDPF_RGB, { 0xffffffff, 0x00000000, 0x00000000, 0x00000000 }, TextureFormat::R32U }, - }; - - bool imageParseDds(ImageContainer& _imageContainer, bx::ReaderSeekerI* _reader, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - int32_t total = 0; - - uint32_t headerSize; - total += bx::read(_reader, headerSize, _err); - - if (!_err->isOk() - || headerSize < DDS_HEADER_SIZE) - { - BX_ERROR_SET(_err, BIMG_ERROR, "DDS: Invalid header size."); - return false; - } - - uint32_t flags; - total += bx::read(_reader, flags, _err); - - if (!_err->isOk() ) - { - return false; - } - - if ( (flags & (DDSD_CAPS|DDSD_HEIGHT|DDSD_WIDTH|DDSD_PIXELFORMAT) ) != (DDSD_CAPS|DDSD_HEIGHT|DDSD_WIDTH|DDSD_PIXELFORMAT) ) - { - BX_ERROR_SET(_err, BIMG_ERROR, "DDS: Invalid flags."); - return false; - } - - uint32_t height; - total += bx::read(_reader, height, _err); - - uint32_t width; - total += bx::read(_reader, width, _err); - - uint32_t pitch; - total += bx::read(_reader, pitch, _err); - - uint32_t depth; - total += bx::read(_reader, depth, _err); - - uint32_t mips; - total += bx::read(_reader, mips, _err); - - bx::skip(_reader, 44); // reserved - total += 44; - - uint32_t pixelFormatSize; - total += bx::read(_reader, pixelFormatSize, _err); - - uint32_t pixelFlags; - total += bx::read(_reader, pixelFlags, _err); - - uint32_t fourcc; - total += bx::read(_reader, fourcc, _err); - - uint32_t bitCount; - total += bx::read(_reader, bitCount, _err); - - uint32_t bitmask[4]; - total += bx::read(_reader, bitmask, sizeof(bitmask), _err); - - uint32_t caps[4]; - total += bx::read(_reader, caps, _err); - - bx::skip(_reader, 4); - total += 4; // reserved - - if (!_err->isOk() ) - { - return false; - } - - uint32_t dxgiFormat = 0; - uint32_t arraySize = 1; - if (DDPF_FOURCC == (pixelFlags & DDPF_FOURCC) - && DDS_DX10 == fourcc) - { - total += bx::read(_reader, dxgiFormat, _err); - - uint32_t dims; - total += bx::read(_reader, dims, _err); - - uint32_t miscFlags; - total += bx::read(_reader, miscFlags, _err); - - total += bx::read(_reader, arraySize, _err); - - uint32_t miscFlags2; - total += bx::read(_reader, miscFlags2, _err); - } - - BX_UNUSED(total); - - if (!_err->isOk() ) - { - return false; - } - - if ( (caps[0] & DDSCAPS_TEXTURE) == 0) - { - BX_ERROR_SET(_err, BIMG_ERROR, "DDS: Unsupported caps."); - return false; - } - - bool cubeMap = 0 != (caps[1] & DDSCAPS2_CUBEMAP); - if (cubeMap) - { - if ( (caps[1] & DSCAPS2_CUBEMAP_ALLSIDES) != DSCAPS2_CUBEMAP_ALLSIDES) - { - // partial cube map is not supported. - BX_ERROR_SET(_err, BIMG_ERROR, "DDS: Incomplete cubemap."); - return false; - } - } - - TextureFormat::Enum format = TextureFormat::Unknown; - bool hasAlpha = pixelFlags & DDPF_ALPHAPIXELS; - bool srgb = false; - - if (dxgiFormat == 0) - { - if (DDPF_FOURCC == (pixelFlags & DDPF_FOURCC) ) - { - for (uint32_t ii = 0; ii < BX_COUNTOF(s_translateDdsFourccFormat); ++ii) - { - if (s_translateDdsFourccFormat[ii].m_format == fourcc) - { - format = s_translateDdsFourccFormat[ii].m_textureFormat; - break; - } - } - } - else - { - for (uint32_t ii = 0; ii < BX_COUNTOF(s_translateDdsPixelFormat); ++ii) - { - const TranslateDdsPixelFormat& pf = s_translateDdsPixelFormat[ii]; - if (pf.m_bitCount == bitCount - && pf.m_flags == pixelFlags - && pf.m_bitmask[0] == bitmask[0] - && pf.m_bitmask[1] == bitmask[1] - && pf.m_bitmask[2] == bitmask[2] - && pf.m_bitmask[3] == bitmask[3]) - { - format = pf.m_textureFormat; - break; - } - } - } - } - else - { - for (uint32_t ii = 0; ii < BX_COUNTOF(s_translateDxgiFormat); ++ii) - { - if (s_translateDxgiFormat[ii].m_format == dxgiFormat) - { - format = s_translateDxgiFormat[ii].m_textureFormat; - srgb = s_translateDxgiFormat[ii].m_srgb; - break; - } - } - } - - if (TextureFormat::Unknown == format) - { - BX_ERROR_SET(_err, BIMG_ERROR, "DDS: Unknown texture format."); - return false; - } - - _imageContainer.m_allocator = NULL; - _imageContainer.m_data = NULL; - _imageContainer.m_size = 0; - _imageContainer.m_offset = (uint32_t)bx::seek(_reader); - _imageContainer.m_width = width; - _imageContainer.m_height = height; - _imageContainer.m_depth = depth; - _imageContainer.m_format = format; - _imageContainer.m_orientation = Orientation::R0; - _imageContainer.m_numLayers = uint16_t(arraySize); - _imageContainer.m_numMips = uint8_t( (caps[0] & DDSCAPS_MIPMAP) ? mips : 1); - _imageContainer.m_hasAlpha = hasAlpha; - _imageContainer.m_cubeMap = cubeMap; - _imageContainer.m_ktx = false; - _imageContainer.m_ktxLE = false; - _imageContainer.m_pvr3 = false; - _imageContainer.m_srgb = srgb; - - return true; - } - - ImageContainer* imageParseDds(bx::AllocatorI* _allocator, const void* _src, uint32_t _size, bx::Error* _err) - { - return imageParseT(_allocator, _src, _size, _err); - } - -// KTX -#define KTX_MAGIC BX_MAKEFOURCC(0xAB, 'K', 'T', 'X') -#define KTX_HEADER_SIZE 64 - -#define KTX_ETC1_RGB8_OES 0x8D64 -#define KTX_COMPRESSED_R11_EAC 0x9270 -#define KTX_COMPRESSED_SIGNED_R11_EAC 0x9271 -#define KTX_COMPRESSED_RG11_EAC 0x9272 -#define KTX_COMPRESSED_SIGNED_RG11_EAC 0x9273 -#define KTX_COMPRESSED_RGB8_ETC2 0x9274 -#define KTX_COMPRESSED_SRGB8_ETC2 0x9275 -#define KTX_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9276 -#define KTX_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9277 -#define KTX_COMPRESSED_RGBA8_ETC2_EAC 0x9278 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC 0x9279 -#define KTX_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00 -#define KTX_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01 -#define KTX_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02 -#define KTX_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03 -#define KTX_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG 0x9137 -#define KTX_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG 0x9138 -#define KTX_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0 -#define KTX_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 -#define KTX_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2 -#define KTX_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 -#define KTX_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT 0x8C4D -#define KTX_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT 0x8C4E -#define KTX_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F -#define KTX_COMPRESSED_LUMINANCE_LATC1_EXT 0x8C70 -#define KTX_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT 0x8C72 -#define KTX_COMPRESSED_RGBA_BPTC_UNORM_ARB 0x8E8C -#define KTX_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB 0x8E8D -#define KTX_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB 0x8E8E -#define KTX_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB 0x8E8F -#define KTX_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT 0x8A54 -#define KTX_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT 0x8A55 -#define KTX_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT 0x8A56 -#define KTX_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT 0x8A57 -#define KTX_ATC_RGB_AMD 0x8C92 -#define KTX_ATC_RGBA_EXPLICIT_ALPHA_AMD 0x8C93 -#define KTX_ATC_RGBA_INTERPOLATED_ALPHA_AMD 0x87EE -#define KTX_COMPRESSED_RGBA_ASTC_4x4_KHR 0x93B0 -#define KTX_COMPRESSED_RGBA_ASTC_5x4_KHR 0x93B1 -#define KTX_COMPRESSED_RGBA_ASTC_5x5_KHR 0x93B2 -#define KTX_COMPRESSED_RGBA_ASTC_6x5_KHR 0x93B3 -#define KTX_COMPRESSED_RGBA_ASTC_6x6_KHR 0x93B4 -#define KTX_COMPRESSED_RGBA_ASTC_8x5_KHR 0x93B5 -#define KTX_COMPRESSED_RGBA_ASTC_8x6_KHR 0x93B6 -#define KTX_COMPRESSED_RGBA_ASTC_8x8_KHR 0x93B7 -#define KTX_COMPRESSED_RGBA_ASTC_10x5_KHR 0x93B8 -#define KTX_COMPRESSED_RGBA_ASTC_10x6_KHR 0x93B9 -#define KTX_COMPRESSED_RGBA_ASTC_10x8_KHR 0x93BA -#define KTX_COMPRESSED_RGBA_ASTC_10x10_KHR 0x93BB -#define KTX_COMPRESSED_RGBA_ASTC_12x10_KHR 0x93BC -#define KTX_COMPRESSED_RGBA_ASTC_12x12_KHR 0x93BD -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR 0x93D0 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR 0x93D1 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR 0x93D2 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR 0x93D3 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR 0x93D4 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR 0x93D5 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR 0x93D6 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR 0x93D7 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR 0x93D8 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR 0x93D9 -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR 0x93DA -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR 0x93DB -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR 0x93DC -#define KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR 0x93DD - -#define KTX_A8 0x803C -#define KTX_R8 0x8229 -#define KTX_R16 0x822A -#define KTX_RG8 0x822B -#define KTX_RG16 0x822C -#define KTX_R16F 0x822D -#define KTX_R32F 0x822E -#define KTX_RG16F 0x822F -#define KTX_RG32F 0x8230 -#define KTX_RGBA8 0x8058 -#define KTX_RGBA16 0x805B -#define KTX_RGBA16F 0x881A -#define KTX_R32UI 0x8236 -#define KTX_RG32UI 0x823C -#define KTX_RGBA32UI 0x8D70 -#define KTX_RGBA32F 0x8814 -#define KTX_RGB565 0x8D62 -#define KTX_RGBA4 0x8056 -#define KTX_RGB5_A1 0x8057 -#define KTX_RGB10_A2 0x8059 -#define KTX_R8I 0x8231 -#define KTX_R8UI 0x8232 -#define KTX_R16I 0x8233 -#define KTX_R16UI 0x8234 -#define KTX_R32I 0x8235 -#define KTX_R32UI 0x8236 -#define KTX_RG8I 0x8237 -#define KTX_RG8UI 0x8238 -#define KTX_RG16I 0x8239 -#define KTX_RG16UI 0x823A -#define KTX_RG32I 0x823B -#define KTX_RG32UI 0x823C -#define KTX_R8_SNORM 0x8F94 -#define KTX_RG8_SNORM 0x8F95 -#define KTX_RGB8_SNORM 0x8F96 -#define KTX_RGBA8_SNORM 0x8F97 -#define KTX_R16_SNORM 0x8F98 -#define KTX_RG16_SNORM 0x8F99 -#define KTX_RGB16_SNORM 0x8F9A -#define KTX_RGBA16_SNORM 0x8F9B -#define KTX_SRGB8 0x8C41 -#define KTX_SRGB8_ALPHA8 0x8C43 -#define KTX_RGBA32UI 0x8D70 -#define KTX_RGB32UI 0x8D71 -#define KTX_RGBA16UI 0x8D76 -#define KTX_RGB16UI 0x8D77 -#define KTX_RGBA8UI 0x8D7C -#define KTX_RGB8UI 0x8D7D -#define KTX_RGBA32I 0x8D82 -#define KTX_RGB32I 0x8D83 -#define KTX_RGBA16I 0x8D88 -#define KTX_RGB16I 0x8D89 -#define KTX_RGBA8I 0x8D8E -#define KTX_RGB8 0x8051 -#define KTX_RGB8I 0x8D8F -#define KTX_RGB9_E5 0x8C3D -#define KTX_R11F_G11F_B10F 0x8C3A - -#define KTX_ZERO 0 -#define KTX_RED 0x1903 -#define KTX_ALPHA 0x1906 -#define KTX_RGB 0x1907 -#define KTX_RGBA 0x1908 -#define KTX_BGRA 0x80E1 -#define KTX_RG 0x8227 - -#define KTX_BYTE 0x1400 -#define KTX_UNSIGNED_BYTE 0x1401 -#define KTX_SHORT 0x1402 -#define KTX_UNSIGNED_SHORT 0x1403 -#define KTX_INT 0x1404 -#define KTX_UNSIGNED_INT 0x1405 -#define KTX_FLOAT 0x1406 -#define KTX_HALF_FLOAT 0x140B -#define KTX_UNSIGNED_INT_5_9_9_9_REV 0x8C3E -#define KTX_UNSIGNED_SHORT_5_6_5 0x8363 -#define KTX_UNSIGNED_SHORT_4_4_4_4 0x8033 -#define KTX_UNSIGNED_SHORT_5_5_5_1 0x8034 -#define KTX_UNSIGNED_INT_2_10_10_10_REV 0x8368 -#define KTX_UNSIGNED_INT_10F_11F_11F_REV 0x8C3B - - struct KtxFormatInfo - { - uint32_t m_internalFmt; - uint32_t m_internalFmtSrgb; - uint32_t m_fmt; - uint32_t m_type; - }; - - static const KtxFormatInfo s_translateKtxFormat[] = - { - { KTX_COMPRESSED_RGBA_S3TC_DXT1_EXT, KTX_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, KTX_COMPRESSED_RGBA_S3TC_DXT1_EXT, KTX_ZERO, }, // BC1 - { KTX_COMPRESSED_RGBA_S3TC_DXT3_EXT, KTX_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, KTX_COMPRESSED_RGBA_S3TC_DXT3_EXT, KTX_ZERO, }, // BC2 - { KTX_COMPRESSED_RGBA_S3TC_DXT5_EXT, KTX_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, KTX_COMPRESSED_RGBA_S3TC_DXT5_EXT, KTX_ZERO, }, // BC3 - { KTX_COMPRESSED_LUMINANCE_LATC1_EXT, KTX_ZERO, KTX_COMPRESSED_LUMINANCE_LATC1_EXT, KTX_ZERO, }, // BC4 - { KTX_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, KTX_ZERO, KTX_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, KTX_ZERO, }, // BC5 - { KTX_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, KTX_ZERO, KTX_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, KTX_ZERO, }, // BC6H - { KTX_COMPRESSED_RGBA_BPTC_UNORM_ARB, KTX_ZERO, KTX_COMPRESSED_RGBA_BPTC_UNORM_ARB, KTX_ZERO, }, // BC7 - { KTX_ETC1_RGB8_OES, KTX_ZERO, KTX_ETC1_RGB8_OES, KTX_ZERO, }, // ETC1 - { KTX_COMPRESSED_RGB8_ETC2, KTX_ZERO, KTX_COMPRESSED_RGB8_ETC2, KTX_ZERO, }, // ETC2 - { KTX_COMPRESSED_RGBA8_ETC2_EAC, KTX_COMPRESSED_SRGB8_ETC2, KTX_COMPRESSED_RGBA8_ETC2_EAC, KTX_ZERO, }, // ETC2A - { KTX_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, KTX_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, KTX_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, KTX_ZERO, }, // ETC2A1 - { KTX_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, KTX_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT, KTX_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, KTX_ZERO, }, // PTC12 - { KTX_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, KTX_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT, KTX_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, KTX_ZERO, }, // PTC14 - { KTX_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, KTX_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT, KTX_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, KTX_ZERO, }, // PTC12A - { KTX_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, KTX_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT, KTX_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, KTX_ZERO, }, // PTC14A - { KTX_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, KTX_ZERO, KTX_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, KTX_ZERO, }, // PTC22 - { KTX_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, KTX_ZERO, KTX_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, KTX_ZERO, }, // PTC24 - { KTX_ATC_RGB_AMD, KTX_ZERO, KTX_ATC_RGB_AMD, KTX_ZERO, }, // ATC - { KTX_ATC_RGBA_EXPLICIT_ALPHA_AMD, KTX_ZERO, KTX_ATC_RGBA_EXPLICIT_ALPHA_AMD, KTX_ZERO, }, // ATCE - { KTX_ATC_RGBA_INTERPOLATED_ALPHA_AMD, KTX_ZERO, KTX_ATC_RGBA_INTERPOLATED_ALPHA_AMD, KTX_ZERO, }, // ATCI - { KTX_COMPRESSED_RGBA_ASTC_4x4_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, KTX_COMPRESSED_RGBA_ASTC_4x4_KHR, KTX_ZERO, }, // ASTC4x4 - { KTX_COMPRESSED_RGBA_ASTC_5x4_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, KTX_COMPRESSED_RGBA_ASTC_5x4_KHR, KTX_ZERO, }, // ASTC5x4 - { KTX_COMPRESSED_RGBA_ASTC_5x5_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, KTX_COMPRESSED_RGBA_ASTC_5x5_KHR, KTX_ZERO, }, // ASTC5x5 - { KTX_COMPRESSED_RGBA_ASTC_6x5_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, KTX_COMPRESSED_RGBA_ASTC_6x5_KHR, KTX_ZERO, }, // ASTC6x5 - { KTX_COMPRESSED_RGBA_ASTC_6x6_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, KTX_COMPRESSED_RGBA_ASTC_6x6_KHR, KTX_ZERO, }, // ASTC6x6 - { KTX_COMPRESSED_RGBA_ASTC_8x5_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, KTX_COMPRESSED_RGBA_ASTC_8x5_KHR, KTX_ZERO, }, // ASTC8x5 - { KTX_COMPRESSED_RGBA_ASTC_8x6_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, KTX_COMPRESSED_RGBA_ASTC_8x6_KHR, KTX_ZERO, }, // ASTC8x6 - { KTX_COMPRESSED_RGBA_ASTC_8x8_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, KTX_COMPRESSED_RGBA_ASTC_8x8_KHR, KTX_ZERO, }, // ASTC8x8 - { KTX_COMPRESSED_RGBA_ASTC_10x5_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, KTX_COMPRESSED_RGBA_ASTC_10x5_KHR, KTX_ZERO, }, // ASTC10x5 - { KTX_COMPRESSED_RGBA_ASTC_10x6_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, KTX_COMPRESSED_RGBA_ASTC_10x6_KHR, KTX_ZERO, }, // ASTC10x6 - { KTX_COMPRESSED_RGBA_ASTC_10x8_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, KTX_COMPRESSED_RGBA_ASTC_10x8_KHR, KTX_ZERO, }, // ASTC10x8 - { KTX_COMPRESSED_RGBA_ASTC_10x10_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, KTX_COMPRESSED_RGBA_ASTC_10x10_KHR, KTX_ZERO, }, // ASTC10x10 - { KTX_COMPRESSED_RGBA_ASTC_12x10_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, KTX_COMPRESSED_RGBA_ASTC_12x10_KHR, KTX_ZERO, }, // ASTC12x10 - { KTX_COMPRESSED_RGBA_ASTC_12x12_KHR, KTX_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, KTX_COMPRESSED_RGBA_ASTC_12x12_KHR, KTX_ZERO, }, // ASTC12x12 - { KTX_ZERO, KTX_ZERO, KTX_ZERO, KTX_ZERO, }, // Unknown - { KTX_ZERO, KTX_ZERO, KTX_ZERO, KTX_ZERO, }, // R1 - { KTX_ALPHA, KTX_ZERO, KTX_ALPHA, KTX_UNSIGNED_BYTE, }, // A8 - { KTX_R8, KTX_ZERO, KTX_RED, KTX_UNSIGNED_BYTE, }, // R8 - { KTX_R8I, KTX_ZERO, KTX_RED, KTX_BYTE, }, // R8S - { KTX_R8UI, KTX_ZERO, KTX_RED, KTX_UNSIGNED_BYTE, }, // R8S - { KTX_R8_SNORM, KTX_ZERO, KTX_RED, KTX_BYTE, }, // R8S - { KTX_R16, KTX_ZERO, KTX_RED, KTX_UNSIGNED_SHORT, }, // R16 - { KTX_R16I, KTX_ZERO, KTX_RED, KTX_SHORT, }, // R16I - { KTX_R16UI, KTX_ZERO, KTX_RED, KTX_UNSIGNED_SHORT, }, // R16U - { KTX_R16F, KTX_ZERO, KTX_RED, KTX_HALF_FLOAT, }, // R16F - { KTX_R16_SNORM, KTX_ZERO, KTX_RED, KTX_SHORT, }, // R16S - { KTX_R32I, KTX_ZERO, KTX_RED, KTX_INT, }, // R32I - { KTX_R32UI, KTX_ZERO, KTX_RED, KTX_UNSIGNED_INT, }, // R32U - { KTX_R32F, KTX_ZERO, KTX_RED, KTX_FLOAT, }, // R32F - { KTX_RG8, KTX_ZERO, KTX_RG, KTX_UNSIGNED_BYTE, }, // RG8 - { KTX_RG8I, KTX_ZERO, KTX_RG, KTX_BYTE, }, // RG8I - { KTX_RG8UI, KTX_ZERO, KTX_RG, KTX_UNSIGNED_BYTE, }, // RG8U - { KTX_RG8_SNORM, KTX_ZERO, KTX_RG, KTX_BYTE, }, // RG8S - { KTX_RG16, KTX_ZERO, KTX_RG, KTX_UNSIGNED_SHORT, }, // RG16 - { KTX_RG16I, KTX_ZERO, KTX_RG, KTX_SHORT, }, // RG16 - { KTX_RG16UI, KTX_ZERO, KTX_RG, KTX_UNSIGNED_SHORT, }, // RG16 - { KTX_RG16F, KTX_ZERO, KTX_RG, KTX_FLOAT, }, // RG16F - { KTX_RG16_SNORM, KTX_ZERO, KTX_RG, KTX_SHORT, }, // RG16S - { KTX_RG32I, KTX_ZERO, KTX_RG, KTX_INT, }, // RG32I - { KTX_RG32UI, KTX_ZERO, KTX_RG, KTX_UNSIGNED_INT, }, // RG32U - { KTX_RG32F, KTX_ZERO, KTX_RG, KTX_FLOAT, }, // RG32F - { KTX_RGB8, KTX_SRGB8, KTX_RGB, KTX_UNSIGNED_BYTE, }, // RGB8 - { KTX_RGB8I, KTX_ZERO, KTX_RGB, KTX_BYTE, }, // RGB8I - { KTX_RGB8UI, KTX_ZERO, KTX_RGB, KTX_UNSIGNED_BYTE, }, // RGB8U - { KTX_RGB8_SNORM, KTX_ZERO, KTX_RGB, KTX_BYTE, }, // RGB8S - { KTX_RGB9_E5, KTX_ZERO, KTX_RGB, KTX_UNSIGNED_INT_5_9_9_9_REV, }, // RGB9E5F - { KTX_BGRA, KTX_SRGB8_ALPHA8, KTX_BGRA, KTX_UNSIGNED_BYTE, }, // BGRA8 - { KTX_RGBA8, KTX_SRGB8_ALPHA8, KTX_RGBA, KTX_UNSIGNED_BYTE, }, // RGBA8 - { KTX_RGBA8I, KTX_ZERO, KTX_RGBA, KTX_BYTE, }, // RGBA8I - { KTX_RGBA8UI, KTX_ZERO, KTX_RGBA, KTX_UNSIGNED_BYTE, }, // RGBA8U - { KTX_RGBA8_SNORM, KTX_ZERO, KTX_RGBA, KTX_BYTE, }, // RGBA8S - { KTX_RGBA16, KTX_ZERO, KTX_RGBA, KTX_UNSIGNED_SHORT, }, // RGBA16 - { KTX_RGBA16I, KTX_ZERO, KTX_RGBA, KTX_SHORT, }, // RGBA16I - { KTX_RGBA16UI, KTX_ZERO, KTX_RGBA, KTX_UNSIGNED_SHORT, }, // RGBA16U - { KTX_RGBA16F, KTX_ZERO, KTX_RGBA, KTX_HALF_FLOAT, }, // RGBA16F - { KTX_RGBA16_SNORM, KTX_ZERO, KTX_RGBA, KTX_SHORT, }, // RGBA16S - { KTX_RGBA32I, KTX_ZERO, KTX_RGBA, KTX_INT, }, // RGBA32I - { KTX_RGBA32UI, KTX_ZERO, KTX_RGBA, KTX_UNSIGNED_INT, }, // RGBA32U - { KTX_RGBA32F, KTX_ZERO, KTX_RGBA, KTX_FLOAT, }, // RGBA32F - { KTX_RGB565, KTX_ZERO, KTX_RGB, KTX_UNSIGNED_SHORT_5_6_5, }, // B5G6R5 - { KTX_RGB565, KTX_ZERO, KTX_RGB, KTX_UNSIGNED_SHORT_5_6_5, }, // R5G6B5 - { KTX_RGBA4, KTX_ZERO, KTX_BGRA, KTX_UNSIGNED_SHORT_4_4_4_4, }, // BGRA4 - { KTX_RGBA4, KTX_ZERO, KTX_RGBA, KTX_UNSIGNED_SHORT_4_4_4_4, }, // RGBA4 - { KTX_RGB5_A1, KTX_ZERO, KTX_BGRA, KTX_UNSIGNED_SHORT_5_5_5_1, }, // BGR5A1 - { KTX_RGB5_A1, KTX_ZERO, KTX_RGBA, KTX_UNSIGNED_SHORT_5_5_5_1, }, // RGB5A1 - { KTX_RGB10_A2, KTX_ZERO, KTX_RGBA, KTX_UNSIGNED_INT_2_10_10_10_REV, }, // RGB10A2 - { KTX_R11F_G11F_B10F, KTX_ZERO, KTX_RGB, KTX_UNSIGNED_INT_10F_11F_11F_REV, }, // RG11B10F - }; - BX_STATIC_ASSERT(TextureFormat::UnknownDepth == BX_COUNTOF(s_translateKtxFormat) ); - - struct KtxFormatInfo2 - { - uint32_t m_internalFmt; - TextureFormat::Enum m_format; - }; - - static const KtxFormatInfo2 s_translateKtxFormat2[] = - { - { KTX_A8, TextureFormat::A8 }, - { KTX_RED, TextureFormat::R8 }, - { KTX_RGB, TextureFormat::RGB8 }, - { KTX_RGBA, TextureFormat::RGBA8 }, - { KTX_COMPRESSED_RGB_S3TC_DXT1_EXT, TextureFormat::BC1 }, - }; - - bool imageParseKtx(ImageContainer& _imageContainer, bx::ReaderSeekerI* _reader, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - uint8_t identifier[8]; - bx::read(_reader, identifier, _err); - - if (identifier[1] != '1' - && identifier[2] != '1') - { - BX_ERROR_SET(_err, BIMG_ERROR, "KTX: Unrecognized version."); - return false; - } - - uint32_t endianness; - bx::read(_reader, endianness, _err); - - bool fromLittleEndian = 0x04030201 == endianness; - - uint32_t glType; - bx::readHE(_reader, glType, fromLittleEndian, _err); - - uint32_t glTypeSize; - bx::readHE(_reader, glTypeSize, fromLittleEndian, _err); - - uint32_t glFormat; - bx::readHE(_reader, glFormat, fromLittleEndian, _err); - - uint32_t glInternalFormat; - bx::readHE(_reader, glInternalFormat, fromLittleEndian, _err); - - uint32_t glBaseInternalFormat; - bx::readHE(_reader, glBaseInternalFormat, fromLittleEndian, _err); - - uint32_t width; - bx::readHE(_reader, width, fromLittleEndian, _err); - - uint32_t height; - bx::readHE(_reader, height, fromLittleEndian, _err); - - uint32_t depth; - bx::readHE(_reader, depth, fromLittleEndian, _err); - - uint32_t numberOfArrayElements; - bx::readHE(_reader, numberOfArrayElements, fromLittleEndian, _err); - - uint32_t numFaces; - bx::readHE(_reader, numFaces, fromLittleEndian, _err); - - uint32_t numMips; - bx::readHE(_reader, numMips, fromLittleEndian, _err); - - uint32_t metaDataSize; - bx::readHE(_reader, metaDataSize, fromLittleEndian, _err); - - if (!_err->isOk() ) - { - return false; - } - - // skip meta garbage... - int64_t offset = bx::skip(_reader, metaDataSize); - - TextureFormat::Enum format = TextureFormat::Unknown; - bool hasAlpha = false; - bool srgb = false; - - for (uint32_t ii = 0; ii < BX_COUNTOF(s_translateKtxFormat); ++ii) - { - if (s_translateKtxFormat[ii].m_internalFmt == glInternalFormat) - { - format = TextureFormat::Enum(ii); - break; - } - - if (s_translateKtxFormat[ii].m_internalFmtSrgb == glInternalFormat - && s_translateKtxFormat[ii].m_fmt == glBaseInternalFormat) - { - format = TextureFormat::Enum(ii); - srgb = true; - break; - } - } - - if (TextureFormat::Unknown == format) - { - for (uint32_t ii = 0; ii < BX_COUNTOF(s_translateKtxFormat2); ++ii) - { - if (s_translateKtxFormat2[ii].m_internalFmt == glInternalFormat) - { - format = s_translateKtxFormat2[ii].m_format; - break; - } - } - } - - _imageContainer.m_allocator = NULL; - _imageContainer.m_data = NULL; - _imageContainer.m_size = 0; - _imageContainer.m_offset = (uint32_t)offset; - _imageContainer.m_width = width; - _imageContainer.m_height = height; - _imageContainer.m_depth = depth; - _imageContainer.m_format = format; - _imageContainer.m_orientation = Orientation::R0; - _imageContainer.m_numLayers = uint16_t(bx::max(numberOfArrayElements, 1) ); - _imageContainer.m_numMips = uint8_t(bx::max(numMips, 1) ); - _imageContainer.m_hasAlpha = hasAlpha; - _imageContainer.m_cubeMap = numFaces > 1; - _imageContainer.m_ktx = true; - _imageContainer.m_ktxLE = fromLittleEndian; - _imageContainer.m_pvr3 = false; - _imageContainer.m_srgb = srgb; - - if (TextureFormat::Unknown == format) - { - BX_ERROR_SET(_err, BIMG_ERROR, "KTX: Unrecognized image format."); - return false; - } - - return true; - } - - ImageContainer* imageParseKtx(bx::AllocatorI* _allocator, const void* _src, uint32_t _size, bx::Error* _err) - { - return imageParseT(_allocator, _src, _size, _err); - } - -// PVR3 -#define PVR3_MAKE8CC(_a, _b, _c, _d, _e, _f, _g, _h) (uint64_t(BX_MAKEFOURCC(_a, _b, _c, _d) ) | (uint64_t(BX_MAKEFOURCC(_e, _f, _g, _h) )<<32) ) - -#define PVR3_MAGIC BX_MAKEFOURCC('P', 'V', 'R', 3) -#define PVR3_HEADER_SIZE 52 - -#define PVR3_PVRTC1_2BPP_RGB 0 -#define PVR3_PVRTC1_2BPP_RGBA 1 -#define PVR3_PVRTC1_4BPP_RGB 2 -#define PVR3_PVRTC1_4BPP_RGBA 3 -#define PVR3_PVRTC2_2BPP_RGBA 4 -#define PVR3_PVRTC2_4BPP_RGBA 5 -#define PVR3_ETC1 6 -#define PVR3_DXT1 7 -#define PVR3_DXT2 8 -#define PVR3_DXT3 9 -#define PVR3_DXT4 10 -#define PVR3_DXT5 11 -#define PVR3_BC4 12 -#define PVR3_BC5 13 -#define PVR3_R8 PVR3_MAKE8CC('r', 0, 0, 0, 8, 0, 0, 0) -#define PVR3_R16 PVR3_MAKE8CC('r', 0, 0, 0, 16, 0, 0, 0) -#define PVR3_R32 PVR3_MAKE8CC('r', 0, 0, 0, 32, 0, 0, 0) -#define PVR3_RG8 PVR3_MAKE8CC('r', 'g', 0, 0, 8, 8, 0, 0) -#define PVR3_RG16 PVR3_MAKE8CC('r', 'g', 0, 0, 16, 16, 0, 0) -#define PVR3_RG32 PVR3_MAKE8CC('r', 'g', 0, 0, 32, 32, 0, 0) -#define PVR3_BGRA8 PVR3_MAKE8CC('b', 'g', 'r', 'a', 8, 8, 8, 8) -#define PVR3_RGBA16 PVR3_MAKE8CC('r', 'g', 'b', 'a', 16, 16, 16, 16) -#define PVR3_RGBA32 PVR3_MAKE8CC('r', 'g', 'b', 'a', 32, 32, 32, 32) -#define PVR3_BGR565 PVR3_MAKE8CC('b', 'g', 'r', 0, 5, 6, 5, 0) -#define PVR3_RGB565 PVR3_MAKE8CC('r', 'g', 'b', 0, 5, 6, 5, 0) -#define PVR3_BGRA4 PVR3_MAKE8CC('b', 'g', 'r', 'a', 4, 4, 4, 4) -#define PVR3_RGBA4 PVR3_MAKE8CC('r', 'g', 'b', 'a', 4, 4, 4, 4) -#define PVR3_BGRA51 PVR3_MAKE8CC('b', 'g', 'r', 'a', 5, 5, 5, 1) -#define PVR3_RGBA51 PVR3_MAKE8CC('r', 'g', 'b', 'a', 5, 5, 5, 1) -#define PVR3_RGB10A2 PVR3_MAKE8CC('r', 'g', 'b', 'a', 10, 10, 10, 2) - -#define PVR3_CHANNEL_TYPE_ANY UINT32_MAX -#define PVR3_CHANNEL_TYPE_FLOAT UINT32_C(12) - - struct TranslatePvr3Format - { - uint64_t m_format; - uint32_t m_channelTypeMask; - TextureFormat::Enum m_textureFormat; - }; - - static const TranslatePvr3Format s_translatePvr3Format[] = - { - { PVR3_PVRTC1_2BPP_RGB, PVR3_CHANNEL_TYPE_ANY, TextureFormat::PTC12 }, - { PVR3_PVRTC1_2BPP_RGBA, PVR3_CHANNEL_TYPE_ANY, TextureFormat::PTC12A }, - { PVR3_PVRTC1_4BPP_RGB, PVR3_CHANNEL_TYPE_ANY, TextureFormat::PTC14 }, - { PVR3_PVRTC1_4BPP_RGBA, PVR3_CHANNEL_TYPE_ANY, TextureFormat::PTC14A }, - { PVR3_PVRTC2_2BPP_RGBA, PVR3_CHANNEL_TYPE_ANY, TextureFormat::PTC22 }, - { PVR3_PVRTC2_4BPP_RGBA, PVR3_CHANNEL_TYPE_ANY, TextureFormat::PTC24 }, - { PVR3_ETC1, PVR3_CHANNEL_TYPE_ANY, TextureFormat::ETC1 }, - { PVR3_DXT1, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BC1 }, - { PVR3_DXT2, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BC2 }, - { PVR3_DXT3, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BC2 }, - { PVR3_DXT4, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BC3 }, - { PVR3_DXT5, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BC3 }, - { PVR3_BC4, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BC4 }, - { PVR3_BC5, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BC5 }, - { PVR3_R8, PVR3_CHANNEL_TYPE_ANY, TextureFormat::R8 }, - { PVR3_R16, PVR3_CHANNEL_TYPE_ANY, TextureFormat::R16U }, - { PVR3_R16, PVR3_CHANNEL_TYPE_FLOAT, TextureFormat::R16F }, - { PVR3_R32, PVR3_CHANNEL_TYPE_ANY, TextureFormat::R32U }, - { PVR3_R32, PVR3_CHANNEL_TYPE_FLOAT, TextureFormat::R32F }, - { PVR3_RG8, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RG8 }, - { PVR3_RG16, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RG16 }, - { PVR3_RG16, PVR3_CHANNEL_TYPE_FLOAT, TextureFormat::RG16F }, - { PVR3_RG32, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RG16 }, - { PVR3_RG32, PVR3_CHANNEL_TYPE_FLOAT, TextureFormat::RG32F }, - { PVR3_BGRA8, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BGRA8 }, - { PVR3_RGBA16, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RGBA16 }, - { PVR3_RGBA16, PVR3_CHANNEL_TYPE_FLOAT, TextureFormat::RGBA16F }, - { PVR3_RGBA32, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RGBA32U }, - { PVR3_RGBA32, PVR3_CHANNEL_TYPE_FLOAT, TextureFormat::RGBA32F }, - { PVR3_RGB565, PVR3_CHANNEL_TYPE_ANY, TextureFormat::B5G6R5 }, - { PVR3_RGB565, PVR3_CHANNEL_TYPE_ANY, TextureFormat::R5G6B5 }, - { PVR3_BGRA4, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BGRA4 }, - { PVR3_RGBA4, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RGBA4 }, - { PVR3_BGRA51, PVR3_CHANNEL_TYPE_ANY, TextureFormat::BGR5A1 }, - { PVR3_RGBA51, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RGB5A1 }, - { PVR3_RGB10A2, PVR3_CHANNEL_TYPE_ANY, TextureFormat::RGB10A2 }, - }; - - bool imageParsePvr3(ImageContainer& _imageContainer, bx::ReaderSeekerI* _reader, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - uint32_t flags; - bx::read(_reader, flags, _err); - - uint64_t pixelFormat; - bx::read(_reader, pixelFormat, _err); - - uint32_t colorSpace; - bx::read(_reader, colorSpace, _err); // 0 - linearRGB, 1 - sRGB - - uint32_t channelType; - bx::read(_reader, channelType, _err); - - uint32_t height; - bx::read(_reader, height, _err); - - uint32_t width; - bx::read(_reader, width, _err); - - uint32_t depth; - bx::read(_reader, depth, _err); - - uint32_t numSurfaces; - bx::read(_reader, numSurfaces, _err); - - uint32_t numFaces; - bx::read(_reader, numFaces, _err); - - uint32_t numMips; - bx::read(_reader, numMips, _err); - - uint32_t metaDataSize; - bx::read(_reader, metaDataSize, _err); - - if (!_err->isOk() ) - { - return false; - } - - // skip meta garbage... - int64_t offset = bx::skip(_reader, metaDataSize); - - TextureFormat::Enum format = TextureFormat::Unknown; - bool hasAlpha = false; - - for (uint32_t ii = 0; ii < BX_COUNTOF(s_translatePvr3Format); ++ii) - { - if (s_translatePvr3Format[ii].m_format == pixelFormat - && channelType == (s_translatePvr3Format[ii].m_channelTypeMask & channelType) ) - { - format = s_translatePvr3Format[ii].m_textureFormat; - break; - } - } - - _imageContainer.m_allocator = NULL; - _imageContainer.m_data = NULL; - _imageContainer.m_size = 0; - _imageContainer.m_offset = (uint32_t)offset; - _imageContainer.m_width = width; - _imageContainer.m_height = height; - _imageContainer.m_depth = depth; - _imageContainer.m_format = format; - _imageContainer.m_orientation = Orientation::R0; - _imageContainer.m_numLayers = 1; - _imageContainer.m_numMips = uint8_t(bx::max(numMips, 1) ); - _imageContainer.m_hasAlpha = hasAlpha; - _imageContainer.m_cubeMap = numFaces > 1; - _imageContainer.m_ktx = false; - _imageContainer.m_ktxLE = false; - _imageContainer.m_pvr3 = true; - _imageContainer.m_srgb = colorSpace > 0; - - return TextureFormat::Unknown != format; - } - - ImageContainer* imageParsePvr3(bx::AllocatorI* _allocator, const void* _src, uint32_t _size, bx::Error* _err) - { - return imageParseT(_allocator, _src, _size, _err); - } - - bool imageParse(ImageContainer& _imageContainer, bx::ReaderSeekerI* _reader, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - uint32_t magic; - bx::read(_reader, magic, _err); - - if (DDS_MAGIC == magic) - { - return imageParseDds(_imageContainer, _reader, _err); - } - else if (KTX_MAGIC == magic) - { - return imageParseKtx(_imageContainer, _reader, _err); - } - else if (PVR3_MAGIC == magic) - { - return imageParsePvr3(_imageContainer, _reader, _err); - } - else if (BIMG_CHUNK_MAGIC_GNF == magic) - { - return imageParseGnf(_imageContainer, _reader, _err); - } - else if (BIMG_CHUNK_MAGIC_TEX == magic) - { - TextureCreate tc; - bx::read(_reader, tc, _err); - - _imageContainer.m_format = tc.m_format; - _imageContainer.m_orientation = Orientation::R0; - _imageContainer.m_offset = UINT32_MAX; - _imageContainer.m_allocator = NULL; - if (NULL == tc.m_mem) - { - _imageContainer.m_data = NULL; - _imageContainer.m_size = 0; - } - else - { - _imageContainer.m_data = tc.m_mem->data; - _imageContainer.m_size = tc.m_mem->size; - } - _imageContainer.m_width = tc.m_width; - _imageContainer.m_height = tc.m_height; - _imageContainer.m_depth = tc.m_depth; - _imageContainer.m_numLayers = tc.m_numLayers; - _imageContainer.m_numMips = tc.m_numMips; - _imageContainer.m_hasAlpha = false; - _imageContainer.m_cubeMap = tc.m_cubeMap; - _imageContainer.m_ktx = false; - _imageContainer.m_ktxLE = false; - _imageContainer.m_pvr3 = false; - _imageContainer.m_srgb = false; - - return _err->isOk(); - } - - BX_TRACE("Unrecognized image format (magic: 0x%08x)!", magic); - BX_ERROR_SET(_err, BIMG_ERROR, "Unrecognized image format."); - - return false; - } - - bool imageParse(ImageContainer& _imageContainer, const void* _data, uint32_t _size, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - bx::MemoryReader reader(_data, _size); - return imageParse(_imageContainer, &reader, _err); - } - - void imageDecodeToR8(bx::AllocatorI* _allocator, void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _dstPitch, TextureFormat::Enum _srcFormat) - { - const uint8_t* src = (const uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - const uint32_t srcBpp = s_imageBlockInfo[_srcFormat].bitsPerPixel; - const uint32_t srcPitch = _width*srcBpp/8; - - for (uint32_t zz = 0; zz < _depth; ++zz, src += _height*srcPitch, dst += _height*_dstPitch) - { - if (isCompressed(_srcFormat)) - { - uint32_t size = imageGetSize(NULL, uint16_t(_width), uint16_t(_height), 0, false, false, 1, TextureFormat::RGBA8); - void* temp = BX_ALLOC(_allocator, size); - imageDecodeToRgba8(_allocator, temp, _src, _width, _height, _width*4, _srcFormat); - imageConvert(_allocator, dst, TextureFormat::R8, temp, TextureFormat::RGBA8, _width, _height, 1, _width*4, _dstPitch); - BX_FREE(_allocator, temp); - } - else - { - imageConvert(_allocator, dst, TextureFormat::R8, src, _srcFormat, _width, _height, 1, srcPitch, _dstPitch); - } - } - } - - void imageDecodeToBgra8(bx::AllocatorI* _allocator, void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _dstPitch, TextureFormat::Enum _srcFormat) - { - const uint8_t* src = (const uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - uint32_t width = _width/4; - uint32_t height = _height/4; - - uint8_t temp[16*4]; - - switch (_srcFormat) - { - case TextureFormat::BC1: - if (BX_ENABLED(BIMG_DECODE_BC1) ) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockDxt1(temp, src); - src += 8; - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "BC1 decoder is disabled (BIMG_DECODE_BC1)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::BC2: - if (BX_ENABLED(BIMG_DECODE_BC2) ) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockDxt23A(temp+3, src); - src += 8; - decodeBlockDxt(temp, src); - src += 8; - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "BC2 decoder is disabled (BIMG_DECODE_BC2)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::BC3: - if (BX_ENABLED(BIMG_DECODE_BC3) ) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockDxt45A(temp+3, src); - src += 8; - decodeBlockDxt(temp, src); - src += 8; - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "BC3 decoder is disabled (BIMG_DECODE_BC3)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::BC4: - if (BX_ENABLED(BIMG_DECODE_BC4) ) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockDxt45A(temp, src); - src += 8; - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "BC4 decoder is disabled (BIMG_DECODE_BC4)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::BC5: - if (BX_ENABLED(BIMG_DECODE_BC5) ) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockDxt45A(temp+2, src); - src += 8; - decodeBlockDxt45A(temp+1, src); - src += 8; - - for (uint32_t ii = 0; ii < 16; ++ii) - { - float nx = temp[ii*4+2]*2.0f/255.0f - 1.0f; - float ny = temp[ii*4+1]*2.0f/255.0f - 1.0f; - float nz = bx::sqrt(1.0f - nx*nx - ny*ny); - temp[ii*4+0] = uint8_t( (nz + 1.0f)*255.0f/2.0f); - temp[ii*4+3] = 0; - } - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "BC5 decoder is disabled (BIMG_DECODE_BC5)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::BC6H: - if (BX_ENABLED(BIMG_DECODE_BC6) ) - { - ImageContainer* rgba32f = imageAlloc(_allocator - , TextureFormat::RGBA32F - , uint16_t(_width) - , uint16_t(_height) - , uint16_t(1) - , 1 - , false - , false - ); - imageDecodeToRgba32f(_allocator, rgba32f->m_data, _src, _width, _height, 1, _width*16, _srcFormat); - imageConvert(_allocator, _dst, TextureFormat::BGRA8, rgba32f->m_data, TextureFormat::RGBA32F, _width, _height, 1, _width*16, _dstPitch); - imageFree(rgba32f); - } - else - { - BX_WARN(false, "BC6 decoder is disabled (BIMG_DECODE_BC6)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::BC7: - if (BX_ENABLED(BIMG_DECODE_BC7) ) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockBc7(temp, src); - src += 16; - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "BC7 decoder is disabled (BIMG_DECODE_BC7)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::ETC1: - case TextureFormat::ETC2: - if (BX_ENABLED(BIMG_DECODE_ETC1 || BIMG_DECODE_ETC2) ) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockEtc12(temp, src); - src += 8; - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "ETC1/ETC2 decoder is disabled (BIMG_DECODE_ETC1/ETC2)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - case TextureFormat::ETC2A: - if (BX_ENABLED(BIMG_DECODE_ETC2)) - { - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockEtc12(temp, src + 8); - decodeBlockEtc2Alpha(temp, src); - - src += 16; - - uint8_t* block = &dst[yy*_dstPitch * 4 + xx * 16]; - bx::memCopy(&block[0 * _dstPitch], &temp[0], 16); - bx::memCopy(&block[1 * _dstPitch], &temp[16], 16); - bx::memCopy(&block[2 * _dstPitch], &temp[32], 16); - bx::memCopy(&block[3 * _dstPitch], &temp[48], 16); - } - } - } - else - { - BX_WARN(false, "ETC2 decoder is disabled (BIMG_DECODE_ETC2)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00)); - } - break; - - case TextureFormat::ETC2A1: - BX_WARN(false, "ETC2A1 decoder is not implemented."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffff0000) ); - break; - - case TextureFormat::PTC12: - BX_WARN(false, "PTC12 decoder is not implemented."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffff00ff) ); - break; - - case TextureFormat::PTC12A: - BX_WARN(false, "PTC12A decoder is not implemented."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffffff00) ); - break; - - case TextureFormat::PTC14: - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockPtc14(temp, src, xx, yy, width, height); - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - break; - - case TextureFormat::PTC14A: - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockPtc14A(temp, src, xx, yy, width, height); - - uint8_t* block = &dst[yy*_dstPitch*4 + xx*16]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - break; - - case TextureFormat::PTC22: - BX_WARN(false, "PTC22 decoder is not implemented."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff00ff00), UINT32_C(0xff0000ff) ); - break; - - case TextureFormat::PTC24: - BX_WARN(false, "PTC24 decoder is not implemented."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffffffff) ); - break; - - case TextureFormat::ATC: - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockATC(temp, src); - src += 8; - - uint8_t* block = &dst[(yy*_dstPitch+xx*4)*4]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - break; - - case TextureFormat::ATCE: - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockDxt23A(temp+3, src); - src += 8; - decodeBlockATC(temp, src); - src += 8; - - uint8_t* block = &dst[(yy*_dstPitch+xx*4)*4]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - break; - - case TextureFormat::ATCI: - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - decodeBlockDxt45A(temp+3, src); - src += 8; - decodeBlockATC(temp, src); - src += 8; - - uint8_t* block = &dst[(yy*_dstPitch+xx*4)*4]; - bx::memCopy(&block[0*_dstPitch], &temp[ 0], 16); - bx::memCopy(&block[1*_dstPitch], &temp[16], 16); - bx::memCopy(&block[2*_dstPitch], &temp[32], 16); - bx::memCopy(&block[3*_dstPitch], &temp[48], 16); - } - } - break; - - case TextureFormat::ASTC4x4: - case TextureFormat::ASTC5x4: - case TextureFormat::ASTC5x5: - case TextureFormat::ASTC6x5: - case TextureFormat::ASTC6x6: - case TextureFormat::ASTC8x5: - case TextureFormat::ASTC8x6: - case TextureFormat::ASTC8x8: - case TextureFormat::ASTC10x5: - case TextureFormat::ASTC10x6: - case TextureFormat::ASTC10x8: - case TextureFormat::ASTC10x10: - case TextureFormat::ASTC12x10: - case TextureFormat::ASTC12x12: - imageDecodeToRgba8(_allocator, _dst, _src, _width, _height, _dstPitch, _srcFormat); - imageSwizzleBgra8(_dst, _dstPitch, _width, _height, _dst, _dstPitch); - break; - - case TextureFormat::RGBA8: - { - const uint32_t srcPitch = _width * 4; - imageSwizzleBgra8(_dst, _dstPitch, _width, _height, _src, srcPitch); - } - break; - - case TextureFormat::BGRA8: - { - const uint32_t srcPitch = _width * 4; - const uint32_t size = bx::uint32_min(srcPitch, _dstPitch); - bx::memCopy(_dst, _dstPitch, _src, srcPitch, size, _height); - } - break; - - default: - { - const uint32_t srcBpp = s_imageBlockInfo[_srcFormat].bitsPerPixel; - const uint32_t srcPitch = _width * srcBpp / 8; - if (!imageConvert(_allocator, _dst, TextureFormat::BGRA8, _src, _srcFormat, _width, _height, 1, srcPitch, _dstPitch) ) - { - // Failed to convert, just make ugly red-yellow checkerboard texture. - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xffff0000), UINT32_C(0xffffff00) ); - } - } - break; - } - } - - void imageDecodeToRgba8(bx::AllocatorI* _allocator, void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _dstPitch, TextureFormat::Enum _srcFormat) - { - switch (_srcFormat) - { - case TextureFormat::RGBA8: - { - const uint32_t srcPitch = _width * 4; - const uint32_t size = bx::uint32_min(srcPitch, _dstPitch); - bx::memCopy(_dst, _dstPitch, _src, srcPitch, size, _height); - } - break; - - case TextureFormat::BGRA8: - { - const uint32_t srcPitch = _width * 4; - imageSwizzleBgra8(_dst, _dstPitch, _width, _height, _src, srcPitch); - } - break; - - case TextureFormat::ASTC4x4: - case TextureFormat::ASTC5x4: - case TextureFormat::ASTC5x5: - case TextureFormat::ASTC6x5: - case TextureFormat::ASTC6x6: - case TextureFormat::ASTC8x5: - case TextureFormat::ASTC8x6: - case TextureFormat::ASTC8x8: - case TextureFormat::ASTC10x5: - case TextureFormat::ASTC10x6: - case TextureFormat::ASTC10x8: - case TextureFormat::ASTC10x10: - case TextureFormat::ASTC12x10: - case TextureFormat::ASTC12x12: - if (BX_ENABLED(BIMG_DECODE_ASTC) ) - { - const unsigned int thread_count = 1; - const bimg::ImageBlockInfo& astcBlockInfo = bimg::getBlockInfo(_srcFormat); - const float quality = ASTCENC_PRE_MEDIUM; - const astcenc_profile profile = ASTCENC_PRF_LDR; //Linear LDR color profile - astcenc_error status; - - //Create and init config and context - astcenc_config config{}; - const unsigned int astcFlags = ASTCENC_FLG_DECOMPRESS_ONLY; - status = astcenc_config_init(profile, astcBlockInfo.blockWidth, astcBlockInfo.blockHeight, 1, quality, astcFlags, &config); - if (status != ASTCENC_SUCCESS) { - BX_TRACE("astc error in config init %s", astcenc_get_error_string(status)); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffffff00) ); - break; - } - - astcenc_context* context; - status = astcenc_context_alloc(&config, thread_count, &context); - if (status != ASTCENC_SUCCESS) { - BX_TRACE("astc error in context alloc %s", astcenc_get_error_string(status)); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffffff00) ); - break; - } - - //Put image data into an astcenc_image - astcenc_image image{}; - image.dim_x = _width; - image.dim_y = _height; - image.dim_z = 1; - image.data_type = ASTCENC_TYPE_U8; - image.data = &_dst; - const uint32_t size = imageGetSize(NULL, uint16_t(_width), uint16_t(_height), 0, false, false, 1, _srcFormat); - - static const astcenc_swizzle swizzle { //0123/rgba swizzle corresponds to ASTC_RGBA - ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A - }; - status = astcenc_decompress_image(context, static_cast(_src), size, &image, &swizzle, 0); - - if (status != ASTCENC_SUCCESS) { - BX_TRACE("astc error in compress image %s", astcenc_get_error_string(status)); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffffff00) ); - astcenc_context_free(context); - break; - } - - astcenc_context_free(context); - } - else - { - BX_WARN(false, "ASTC decoder is disabled (BIMG_DECODE_ASTC)."); - imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xff00ff00) ); - } - break; - - default: - { - const uint32_t srcPitch = _width * 4; - imageDecodeToBgra8(_allocator, _dst, _src, _width, _height, _dstPitch, _srcFormat); - imageSwizzleBgra8(_dst, _dstPitch, _width, _height, _dst, srcPitch); - } - break; - } - } - - void imageRgba8ToRgba32fRef(void* _dst, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src) - { - const uint32_t dstWidth = _width; - const uint32_t dstHeight = _height; - - if (0 == dstWidth - || 0 == dstHeight) - { - return; - } - - float* dst = (float*)_dst; - const uint8_t* src = (const uint8_t*)_src; - - for (uint32_t yy = 0, ystep = _srcPitch; yy < dstHeight; ++yy, src += ystep) - { - const uint8_t* rgba = src; - for (uint32_t xx = 0; xx < dstWidth; ++xx, rgba += 4, dst += 4) - { - dst[0] = bx::toLinear(rgba[0]); - dst[1] = bx::toLinear(rgba[1]); - dst[2] = bx::toLinear(rgba[2]); - dst[3] = rgba[3]; - } - } - } - - void imageRgba8ToRgba32f(void* _dst, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src) - { - const uint32_t dstWidth = _width; - const uint32_t dstHeight = _height; - - if (0 == dstWidth - || 0 == dstHeight) - { - return; - } - - float* dst = (float*)_dst; - const uint8_t* src = (const uint8_t*)_src; - - using namespace bx; - const simd128_t unpack = simd_ld(1.0f/256.0f, 1.0f/256.0f/256.0f, 1.0f/65536.0f/256.0f, 1.0f/16777216.0f/256.0f); - const simd128_t umask = simd_ild(0xff, 0xff00, 0xff0000, 0xff000000); - const simd128_t wflip = simd_ild(0, 0, 0, 0x80000000); - const simd128_t wadd = simd_ld(0.0f, 0.0f, 0.0f, 32768.0f*65536.0f); - - for (uint32_t yy = 0, ystep = _srcPitch; yy < dstHeight; ++yy, src += ystep) - { - const uint8_t* rgba = src; - for (uint32_t xx = 0; xx < dstWidth; ++xx, rgba += 4, dst += 4) - { - const simd128_t abgr0 = simd_splat(rgba); - const simd128_t abgr0m = simd_and(abgr0, umask); - const simd128_t abgr0x = simd_xor(abgr0m, wflip); - const simd128_t abgr0f = simd_itof(abgr0x); - const simd128_t abgr0c = simd_add(abgr0f, wadd); - const simd128_t abgr0n = simd_mul(abgr0c, unpack); - - simd_st(dst, abgr0n); - } - } - } - - void imageDecodeToRgba32f(bx::AllocatorI* _allocator, void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _dstPitch, TextureFormat::Enum _srcFormat) - { - const uint8_t* src = (const uint8_t*)_src; - uint8_t* dst = (uint8_t*)_dst; - - const uint32_t srcBpp = s_imageBlockInfo[_srcFormat].bitsPerPixel; - const uint32_t srcPitch = _width*srcBpp/8; - - for (uint32_t zz = 0; zz < _depth; ++zz, src += _height*srcPitch, dst += _height*_dstPitch) - { - switch (_srcFormat) - { - case TextureFormat::BC5: - { - uint32_t width = _width/4; - uint32_t height = _height/4; - - const uint8_t* srcData = src; - - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - uint8_t temp[16*4]; - - decodeBlockDxt45A(temp+2, srcData); - srcData += 8; - decodeBlockDxt45A(temp+1, srcData); - srcData += 8; - - for (uint32_t ii = 0; ii < 16; ++ii) - { - float nx = temp[ii*4+2]*2.0f/255.0f - 1.0f; - float ny = temp[ii*4+1]*2.0f/255.0f - 1.0f; - float nz = bx::sqrt(1.0f - nx*nx - ny*ny); - - const uint32_t offset = (yy*4 + ii/4)*_width*16 + (xx*4 + ii%4)*16; - float* block = (float*)&dst[offset]; - block[0] = nx; - block[1] = ny; - block[2] = nz; - block[3] = 0.0f; - } - } - } - } - break; - - case TextureFormat::BC6H: - { - uint32_t width = _width/4; - uint32_t height = _height/4; - - const uint8_t* srcData = src; - - for (uint32_t yy = 0; yy < height; ++yy) - { - for (uint32_t xx = 0; xx < width; ++xx) - { - float tmp[16*4]; - decodeBlockBc6h(tmp, srcData); - srcData += 16; - - uint8_t* block = (uint8_t*)&dst[yy*_dstPitch*4 + xx*64]; - bx::memCopy(&block[0*_dstPitch], &tmp[ 0], 64); - bx::memCopy(&block[1*_dstPitch], &tmp[16], 64); - bx::memCopy(&block[2*_dstPitch], &tmp[32], 64); - bx::memCopy(&block[3*_dstPitch], &tmp[48], 64); - } - } - } - break; - - case TextureFormat::RGBA32F: - bx::memCopy(dst, src, _dstPitch*_height); - break; - - default: - if (isCompressed(_srcFormat) ) - { - uint32_t size = imageGetSize(NULL, uint16_t(_width), uint16_t(_height), 0, false, false, 1, TextureFormat::RGBA8); - void* temp = BX_ALLOC(_allocator, size); - imageDecodeToRgba8(_allocator, temp, src, _width, _height, _width*4, _srcFormat); - imageRgba8ToRgba32f(dst, _width, _height, _width*4, temp); - BX_FREE(_allocator, temp); - } - else - { - imageConvert(_allocator, dst, TextureFormat::RGBA32F, src, _srcFormat, _width, _height, 1, srcPitch, _dstPitch); - } - break; - } - } - } - - bool imageGetRawData(const ImageContainer& _imageContainer, uint16_t _side, uint8_t _lod, const void* _data, uint32_t _size, ImageMip& _mip) - { - uint32_t offset = _imageContainer.m_offset; - TextureFormat::Enum format = TextureFormat::Enum(_imageContainer.m_format); - bool hasAlpha = _imageContainer.m_hasAlpha; - - const ImageBlockInfo& blockInfo = s_imageBlockInfo[format]; - const uint8_t bpp = blockInfo.bitsPerPixel; - const uint32_t blockSize = blockInfo.blockSize; - const uint32_t blockWidth = blockInfo.blockWidth; - const uint32_t blockHeight = blockInfo.blockHeight; - const uint32_t minBlockX = blockInfo.minBlockX; - const uint32_t minBlockY = blockInfo.minBlockY; - - if (UINT32_MAX == _imageContainer.m_offset) - { - if (NULL == _imageContainer.m_data) - { - return false; - } - - offset = 0; - _data = _imageContainer.m_data; - _size = _imageContainer.m_size; - } - - const uint8_t* data = (const uint8_t*)_data; - const uint16_t numSides = _imageContainer.m_numLayers * (_imageContainer.m_cubeMap ? 6 : 1); - - if (_imageContainer.m_ktx || _imageContainer.m_pvr3) - { - uint32_t width = _imageContainer.m_width; - uint32_t height = _imageContainer.m_height; - uint32_t depth = _imageContainer.m_depth; - - for (uint8_t lod = 0, num = _imageContainer.m_numMips; lod < num; ++lod) - { - width = bx::max(blockWidth * minBlockX, ( (width + blockWidth - 1) / blockWidth )*blockWidth); - height = bx::max(blockHeight * minBlockY, ( (height + blockHeight - 1) / blockHeight)*blockHeight); - depth = bx::max(1, depth); - - const uint32_t mipSize = width/blockWidth * height/blockHeight * depth * blockSize; - - if (_imageContainer.m_ktx) - { - const uint32_t size = mipSize * numSides; - uint32_t imageSize = bx::toHostEndian(*(const uint32_t*)&data[offset], _imageContainer.m_ktxLE); - BX_ASSERT(size == imageSize, "KTX: Image size mismatch %d (expected %d).", size, imageSize); - BX_UNUSED(size, imageSize); - - offset += sizeof(uint32_t); - } - - for (uint16_t side = 0; side < numSides; ++side) - { - BX_ASSERT(offset <= _size, "Reading past size of data buffer! (offset %d, size %d)", offset, _size); - - if (side == _side - && lod == _lod) - { - _mip.m_width = width; - _mip.m_height = height; - _mip.m_depth = depth; - _mip.m_blockSize = blockSize; - _mip.m_size = mipSize; - _mip.m_data = &data[offset]; - _mip.m_bpp = bpp; - _mip.m_format = format; - _mip.m_hasAlpha = hasAlpha; - return true; - } - - offset += mipSize; - - BX_UNUSED(_size); - } - - width >>= 1; - height >>= 1; - depth >>= 1; - } - } - else - { - for (uint16_t side = 0; side < numSides; ++side) - { - uint32_t width = _imageContainer.m_width; - uint32_t height = _imageContainer.m_height; - uint32_t depth = _imageContainer.m_depth; - - for (uint8_t lod = 0, num = _imageContainer.m_numMips; lod < num; ++lod) - { - BX_ASSERT(offset <= _size, "Reading past size of data buffer! (offset %d, size %d)", offset, _size); - - width = bx::max(blockWidth * minBlockX, ( (width + blockWidth - 1) / blockWidth )*blockWidth); - height = bx::max(blockHeight * minBlockY, ( (height + blockHeight - 1) / blockHeight)*blockHeight); - depth = bx::max(1, depth); - - uint32_t mipSize = width/blockWidth * height/blockHeight * depth * blockSize; - - if (side == _side - && lod == _lod) - { - _mip.m_width = width; - _mip.m_height = height; - _mip.m_depth = depth; - _mip.m_blockSize = blockSize; - _mip.m_size = mipSize; - _mip.m_data = &data[offset]; - _mip.m_bpp = bpp; - _mip.m_format = format; - _mip.m_hasAlpha = hasAlpha; - return true; - } - - offset += mipSize; - - BX_UNUSED(_size); - - width >>= 1; - height >>= 1; - depth >>= 1; - } - } - } - - return false; - } - - int32_t imageWriteTga(bx::WriterI* _writer, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, bool _grayscale, bool _yflip, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - uint8_t type = _grayscale ? 3 : 2; - uint8_t bpp = _grayscale ? 8 : 32; - - uint8_t header[18] = {}; - header[ 2] = type; - header[12] = _width &0xff; - header[13] = (_width >>8)&0xff; - header[14] = _height &0xff; - header[15] = (_height>>8)&0xff; - header[16] = bpp; - header[17] = 32; - - int32_t total = 0; - total += bx::write(_writer, header, sizeof(header), _err); - - uint32_t dstPitch = _width*bpp/8; - if (_yflip) - { - const uint8_t* data = (const uint8_t*)_src + _srcPitch*_height - _srcPitch; - for (uint32_t yy = 0; yy < _height && _err->isOk(); ++yy) - { - total += bx::write(_writer, data, dstPitch, _err); - data -= _srcPitch; - } - } - else if (_srcPitch == dstPitch) - { - total += bx::write(_writer, _src, _height*_srcPitch, _err); - } - else - { - const uint8_t* data = (const uint8_t*)_src; - for (uint32_t yy = 0; yy < _height && _err->isOk(); ++yy) - { - total += bx::write(_writer, data, dstPitch, _err); - data += _srcPitch; - } - } - - return total; - } - - template - class HashWriter : public bx::WriterI - { - public: - HashWriter(bx::WriterI* _writer) - : m_writer(_writer) - { - begin(); - } - - void begin() - { - m_hash.begin(); - } - - uint32_t end() - { - return m_hash.end(); - } - - virtual int32_t write(const void* _data, int32_t _size, bx::Error* _err) override - { - m_hash.add(_data, _size); - return m_writer->write(_data, _size, _err); - } - - private: - Ty m_hash; - bx::WriterI* m_writer; - }; - - int32_t imageWritePng(bx::WriterI* _writer, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, TextureFormat::Enum _format, bool _yflip, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - switch (_format) - { - case TextureFormat::R8: - case TextureFormat::RGBA8: - case TextureFormat::BGRA8: - break; - - default: - BX_ERROR_SET(_err, BIMG_ERROR, "PNG: Unsupported texture format."); - return 0; - } - - const bool grayscale = TextureFormat::R8 == _format; - const bool bgra = TextureFormat::BGRA8 == _format; - - int32_t total = 0; - total += bx::write(_writer, "\x89PNG\r\n\x1a\n", _err); - total += bx::write(_writer, bx::toBigEndian(13), _err); - - HashWriter writerC(_writer); - total += bx::write(&writerC, "IHDR", _err); - total += bx::write(&writerC, bx::toBigEndian(_width), _err); - total += bx::write(&writerC, bx::toBigEndian(_height), _err); - total += bx::write(&writerC, "\x08\x06", _err); - total += bx::writeRep(&writerC, 0, 3, _err); - total += bx::write(_writer, bx::toBigEndian(writerC.end() ), _err); - - const uint32_t bpp = grayscale ? 8 : 32; - const uint32_t stride = _width*bpp/8; - const uint16_t zlen = bx::toLittleEndian(uint16_t(stride + 1) ); - const uint16_t zlenC = bx::toLittleEndian(~zlen); - - total += bx::write(_writer, bx::toBigEndian(_height*(stride+6)+6), _err); - - writerC.begin(); - total += bx::write(&writerC, "IDAT", _err); - total += bx::write(&writerC, "\x78\x9c", _err); - - const uint8_t* data = (const uint8_t*)_src; - int32_t step = int32_t(_srcPitch); - if (_yflip) - { - data += _srcPitch*_height - _srcPitch; - step = -step; - } - - HashWriter writerA(&writerC); - - for (uint32_t ii = 0; ii < _height && _err->isOk(); ++ii) - { - total += bx::write(&writerC, uint8_t(ii == _height-1 ? 1 : 0), _err); - total += bx::write(&writerC, zlen, _err); - total += bx::write(&writerC, zlenC, _err); - - total += bx::write(&writerA, uint8_t(0), _err); - - if (bgra) - { - for (uint32_t xx = 0; xx < _width; ++xx) - { - const uint8_t* texel = &data[xx*4]; - const uint8_t bb = texel[0]; - const uint8_t gg = texel[1]; - const uint8_t rr = texel[2]; - const uint8_t aa = texel[3]; - total += bx::write(&writerA, rr, _err); - total += bx::write(&writerA, gg, _err); - total += bx::write(&writerA, bb, _err); - total += bx::write(&writerA, aa, _err); - } - } - else - { - total += bx::write(&writerA, data, stride, _err); - } - - data += step; - } - total += bx::write(&writerC, bx::toBigEndian(writerA.end() ), _err); - total += bx::write(_writer, bx::toBigEndian(writerC.end() ), _err); - - total += bx::write(&writerC, uint32_t(0), _err); - writerC.begin(); - total += bx::write(&writerC, "IEND", _err); - total += bx::write(_writer, bx::toBigEndian(writerC.end() ), _err); - - return total; - } - - int32_t imageWriteExr(bx::WriterI* _writer, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, TextureFormat::Enum _format, bool _yflip, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - const uint32_t bpp = getBitsPerPixel(_format); - uint32_t bytesPerChannel = 0; - - switch (_format) - { - case TextureFormat::RGBA16F: - bytesPerChannel = 2; - break; - - default: - BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Unsupported texture format."); - return 0; - } - - int32_t total = 0; - total += bx::write(_writer, "v/1\x01", _err); - total += bx::writeLE(_writer, uint32_t(2), _err); - - total += bx::write(_writer, "channels", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "chlist", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(18*4+1), _err); - - const uint8_t cdata[] = { 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 }; - // Order is always ABGR order because Photoshop and GIMP ignore these fields and - // assume it's in ABGR order. - total += bx::write(_writer, 'A', _err); - total += bx::write(_writer, cdata, BX_COUNTOF(cdata), _err); - total += bx::write(_writer, 'B', _err); - total += bx::write(_writer, cdata, BX_COUNTOF(cdata), _err); - total += bx::write(_writer, 'G', _err); - total += bx::write(_writer, cdata, BX_COUNTOF(cdata), _err); - total += bx::write(_writer, 'R', _err); - total += bx::write(_writer, cdata, BX_COUNTOF(cdata), _err); - total += bx::write(_writer, '\0', _err); - - total += bx::write(_writer, "compression", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "compression", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(1), _err); - total += bx::write(_writer, '\0', _err); // no compression - - total += bx::write(_writer, "dataWindow", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "box2i", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(16), _err); - total += bx::writeRep(_writer, '\0', 8, _err); - total += bx::writeLE(_writer, _width-1, _err); - total += bx::writeLE(_writer, _height-1, _err); - - total += bx::write(_writer, "displayWindow", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "box2i", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(16), _err); - total += bx::writeRep(_writer, '\0', 8, _err); - total += bx::writeLE(_writer, _width-1, _err); - total += bx::writeLE(_writer, _height-1, _err); - - total += bx::write(_writer, "lineOrder", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "lineOrder", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(1), _err); - total += bx::write(_writer, _yflip, _err); - - total += bx::write(_writer, "pixelAspectRatio", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "float", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(4), _err); - total += bx::writeLE(_writer, 1.0f, _err); - - total += bx::write(_writer, "screenWindowCenter", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "v2f", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(8), _err); - total += bx::writeRep(_writer, '\0', 8, _err); - - total += bx::write(_writer, "screenWindowWidth", _err); - total += bx::write(_writer, '\0', _err); - total += bx::write(_writer, "float", _err); - total += bx::write(_writer, '\0', _err); - total += bx::writeLE(_writer, uint32_t(4), _err); - total += bx::writeLE(_writer, 1.0f, _err); - - total += bx::write(_writer, '\0', _err); - - const uint32_t exrStride = _width*bpp/8; - - uint64_t offset = 0; - for (uint32_t yy = 0; yy < _height && _err->isOk(); ++yy) - { - total += bx::writeLE(_writer, (offset), _err); - offset += exrStride + 8 /* offset */; - } - - const uint8_t* data = (const uint8_t*)_src; - for (uint32_t yy = 0; yy < _height && _err->isOk(); ++yy) - { - total += bx::writeLE(_writer, yy, _err); - total += bx::writeLE(_writer, exrStride, _err); - - for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx) - { - total += bx::write(_writer, &data[xx*bpp/8+3*bytesPerChannel], bytesPerChannel, _err); - } - - for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx) - { - total += bx::write(_writer, &data[xx*bpp/8+2*bytesPerChannel], bytesPerChannel, _err); - } - - for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx) - { - total += bx::write(_writer, &data[xx*bpp/8+1*bytesPerChannel], bytesPerChannel, _err); - } - - for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx) - { - total += bx::write(_writer, &data[xx*bpp/8+0*bytesPerChannel], bytesPerChannel, _err); - } - - data += _srcPitch; - } - - return total; - } - - int32_t imageWriteHdr(bx::WriterI* _writer, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, TextureFormat::Enum _format, bool _yflip, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - int32_t total = 0; - total += bx::write(_writer, "#?RADIANCE\n" , _err); - total += bx::write(_writer, "FORMAT=32-bit_rle_rgbe\n" , _err); - total += bx::write(_writer, '\n' , _err); - - total += bx::write(_writer, _err, "%cY %d +X %d\n", _yflip ? '+' : '-', _height, _width); - - UnpackFn unpack = getUnpack(_format); - const uint32_t bpp = getBitsPerPixel(_format); - - const uint8_t* data = (const uint8_t*)_src; - for (uint32_t yy = 0; yy < _height && _err->isOk(); ++yy) - { - for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx) - { - float rgba[4]; - unpack(rgba, &data[xx*bpp/8]); - - const float maxVal = bx::max(rgba[0], rgba[1], rgba[2]); - const float exp = bx::ceil(bx::log2(maxVal) ); - const float toRgb8 = 255.0f * 1.0f/bx::ldexp(1.0f, int(exp) ); - - uint8_t rgbe[4]; - rgbe[0] = uint8_t(rgba[0] * toRgb8); - rgbe[1] = uint8_t(rgba[1] * toRgb8); - rgbe[2] = uint8_t(rgba[2] * toRgb8); - rgbe[3] = uint8_t(exp+128.0f); - - total += bx::write(_writer, rgbe, 4, _err); - } - - data += _srcPitch; - } - - return total; - } static int32_t imageWriteDdsHeader(bx::WriterI* _writer, TextureFormat::Enum _format, bool _cubeMap, uint32_t _width, uint32_t _height, uint32_t _depth, uint8_t _numMips, uint32_t _numLayers, bx::Error* _err) { BX_ERROR_SCOPE(_err); @@ -11552,141 +5934,4 @@ namespace bimg return total; } -} // namespace bimg - - static int32_t imageWriteKtxHeader(bx::WriterI* _writer, TextureFormat::Enum _format, bool _cubeMap, uint32_t _width, uint32_t _height, uint32_t _depth, uint8_t _numMips, uint32_t _numLayers, bool _srgb, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - const KtxFormatInfo& tfi = s_translateKtxFormat[_format]; - - uint32_t internalFmt = tfi.m_internalFmt; - if (_srgb && tfi.m_internalFmtSrgb != KTX_ZERO) { - internalFmt = tfi.m_internalFmtSrgb; - } - - int32_t total = 0; - total += bx::write(_writer, "\xabKTX 11\xbb\r\n\x1a\n", 12, _err); - total += bx::write(_writer, uint32_t(0x04030201), _err); - total += bx::write(_writer, uint32_t(0), _err); // glType - total += bx::write(_writer, uint32_t(1), _err); // glTypeSize - total += bx::write(_writer, uint32_t(0), _err); // glFormat - total += bx::write(_writer, internalFmt, _err); // glInternalFormat - total += bx::write(_writer, tfi.m_fmt, _err); // glBaseInternalFormat - total += bx::write(_writer, _width, _err); - total += bx::write(_writer, _height, _err); - total += bx::write(_writer, _depth, _err); - total += bx::write(_writer, _numLayers, _err); // numberOfArrayElements - total += bx::write(_writer, _cubeMap ? uint32_t(6) : uint32_t(0), _err); - total += bx::write(_writer, uint32_t(_numMips), _err); - total += bx::write(_writer, uint32_t(0), _err); // Meta-data size. - - BX_WARN(total == 64, "KTX: Failed to write header size %d (expected: %d).", total, 64); - return total; - } - - int32_t imageWriteKtx(bx::WriterI* _writer, TextureFormat::Enum _format, bool _cubeMap, uint32_t _width, uint32_t _height, uint32_t _depth, uint8_t _numMips, uint32_t _numLayers, bool _srgb, const void* _src, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - int32_t total = 0; - total += imageWriteKtxHeader(_writer, _format, _cubeMap, _width, _height, _depth, _numMips, _numLayers, _srgb, _err); - - if (!_err->isOk() ) - { - return total; - } - - const ImageBlockInfo& blockInfo = s_imageBlockInfo[_format]; - const uint32_t blockWidth = blockInfo.blockWidth; - const uint32_t blockHeight = blockInfo.blockHeight; - const uint32_t minBlockX = blockInfo.minBlockX; - const uint32_t minBlockY = blockInfo.minBlockY; - const uint8_t blockSize = blockInfo.blockSize; - - const uint8_t* src = (const uint8_t*)_src; - - const uint32_t numLayers = bx::max(_numLayers, 1); - const uint32_t numSides = _cubeMap ? 6 : 1; - - uint32_t width = _width; - uint32_t height = _height; - uint32_t depth = _depth; - - for (uint8_t lod = 0; lod < _numMips && _err->isOk(); ++lod) - { - width = bx::max(blockWidth * minBlockX, ( (width + blockWidth - 1) / blockWidth )*blockWidth); - height = bx::max(blockHeight * minBlockY, ( (height + blockHeight - 1) / blockHeight)*blockHeight); - depth = bx::max(1, depth); - - const uint32_t mipSize = width/blockWidth * height/blockHeight * depth * blockSize; - const uint32_t size = mipSize * numLayers * numSides; - total += bx::write(_writer, size, _err); - - for (uint32_t layer = 0; layer < numLayers && _err->isOk(); ++layer) - { - for (uint8_t side = 0; side < numSides && _err->isOk(); ++side) - { - total += bx::write(_writer, src, mipSize, _err); - src += mipSize; - } - } - - width >>= 1; - height >>= 1; - depth >>= 1; - } - - return total; - } - - int32_t imageWriteKtx(bx::WriterI* _writer, ImageContainer& _imageContainer, const void* _data, uint32_t _size, bx::Error* _err) - { - BX_ERROR_SCOPE(_err); - - int32_t total = 0; - total += imageWriteKtxHeader(_writer - , TextureFormat::Enum(_imageContainer.m_format) - , _imageContainer.m_cubeMap - , _imageContainer.m_width - , _imageContainer.m_height - , _imageContainer.m_depth - , _imageContainer.m_numMips - , _imageContainer.m_numLayers - , _imageContainer.m_srgb - , _err - ); - - if (!_err->isOk() ) - { - return total; - } - - const uint32_t numMips = _imageContainer.m_numMips; - const uint32_t numLayers = bx::max(_imageContainer.m_numLayers, 1); - const uint32_t numSides = _imageContainer.m_cubeMap ? 6 : 1; - - for (uint8_t lod = 0; lod < numMips && _err->isOk(); ++lod) - { - ImageMip mip; - imageGetRawData(_imageContainer, 0, lod, _data, _size, mip); - - const uint32_t size = mip.m_size*numSides*numLayers; - total += bx::write(_writer, size, _err); - - for (uint32_t layer = 0; layer < numLayers && _err->isOk(); ++layer) - { - for (uint8_t side = 0; side < numSides && _err->isOk(); ++side) - { - if (imageGetRawData(_imageContainer, uint16_t(layer*numSides + side), lod, _data, _size, mip) ) - { - total += bx::write(_writer, mip.m_data, mip.m_size, _err); - } - } - } - } - - return total; - } - } // namespace bimg