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texturec: Allow pass thru texture to change format.

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This commit is contained in:
Branimir Karadžić
2017-11-21 17:39:36 -08:00
parent 7cc14e99a1
commit 886ba55a25
4 changed files with 127 additions and 9 deletions
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88
src/image_encode.cpp
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@@ -196,6 +196,94 @@ namespace bimg
}
}
void imageEncode(bx::AllocatorI* _allocator, void* _dst, const void* _src, TextureFormat::Enum _srcFormat, uint32_t _width, uint32_t _height, uint32_t _depth, TextureFormat::Enum _dstFormat, Quality::Enum _quality, bx::Error* _err)
{
switch (_dstFormat)
{
case bimg::TextureFormat::BC1:
case bimg::TextureFormat::BC2:
case bimg::TextureFormat::BC3:
case bimg::TextureFormat::BC4:
case bimg::TextureFormat::BC5:
case bimg::TextureFormat::ETC1:
case bimg::TextureFormat::ETC2:
case bimg::TextureFormat::PTC14:
case bimg::TextureFormat::PTC14A:
{
uint8_t* temp = (uint8_t*)BX_ALLOC(_allocator, _width*_height*_depth*4);
imageDecodeToRgba8(temp, _src, _width, _height, _width*4, _srcFormat);
imageEncodeFromRgba8(_dst, temp, _width, _height, _depth, _dstFormat, _quality, _err);
BX_FREE(_allocator, temp);
}
break;
case bimg::TextureFormat::BC6H:
case bimg::TextureFormat::BC7:
{
uint8_t* temp = (uint8_t*)BX_ALLOC(_allocator, _width*_height*_depth*16);
imageDecodeToRgba32f(_allocator, temp, _src, _width, _height, _depth, _width*16, _srcFormat);
imageEncodeFromRgba32f(_allocator, _dst, temp, _width, _height, _depth, _dstFormat, _quality, _err);
BX_FREE(_allocator, temp);
}
break;
default:
BX_ERROR_SET(_err, BIMG_ERROR, "Unable to convert between input/output formats!");
break;
}
}
ImageContainer* imageEncode(bx::AllocatorI* _allocator, TextureFormat::Enum _dstFormat, Quality::Enum _quality, const ImageContainer& _input)
{
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
, 1 < _input.m_numMips
);
const uint16_t numSides = _input.m_numLayers * (_input.m_cubeMap ? 6 : 1);
bx::Error err;
for (uint16_t side = 0; side < numSides && err.isOk(); ++side)
{
for (uint8_t lod = 0, num = _input.m_numMips; lod < num && err.isOk(); ++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<uint8_t*>(dstMip.m_data);
imageEncode(_allocator
, dstData
, mip.m_data
, mip.m_format
, mip.m_width
, mip.m_height
, mip.m_depth
, _dstFormat
, _quality
, &err
);
}
}
}
if (err.isOk() )
{
return output;
}
imageFree(output);
return NULL;
}
void imageRgba32f11to01(void* _dst, uint32_t _width, uint32_t _height, uint32_t _depth, uint32_t _pitch, const void* _src)
{
const uint8_t* src = (const uint8_t*)_src;