mirror of
https://github.com/bkaradzic/bgfx.git
synced 2026-02-17 20:52:36 +01:00
432 lines
15 KiB
C
432 lines
15 KiB
C
/*
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* Copyright 2011-2025 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
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*/
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#ifndef BGFX_CONFIG_H_HEADER_GUARD
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#define BGFX_CONFIG_H_HEADER_GUARD
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#include <bx/bx.h> // bx::isPowerOf2
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// # Configuration options for bgfx.
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//
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// Any of `BGFX_CONFIG_*` options that's inside `#ifndef` block can be configured externally
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// via compiler options.
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//
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// When selecting rendering backends select all backends you want to include in the build.
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#ifndef BX_CONFIG_DEBUG
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# error "BX_CONFIG_DEBUG must be defined in build script!"
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#endif // BX_CONFIG_DEBUG
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#if !defined(BGFX_CONFIG_RENDERER_AGC) \
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&& !defined(BGFX_CONFIG_RENDERER_DIRECT3D11) \
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&& !defined(BGFX_CONFIG_RENDERER_DIRECT3D12) \
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&& !defined(BGFX_CONFIG_RENDERER_GNM) \
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&& !defined(BGFX_CONFIG_RENDERER_METAL) \
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&& !defined(BGFX_CONFIG_RENDERER_NVN) \
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&& !defined(BGFX_CONFIG_RENDERER_OPENGL) \
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&& !defined(BGFX_CONFIG_RENDERER_OPENGLES) \
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&& !defined(BGFX_CONFIG_RENDERER_VULKAN)
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# ifndef BGFX_CONFIG_RENDERER_AGC
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# define BGFX_CONFIG_RENDERER_AGC (0 \
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|| BX_PLATFORM_PS5 \
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? 1 : 0)
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# endif // BGFX_CONFIG_RENDERER_AGC
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# ifndef BGFX_CONFIG_RENDERER_DIRECT3D11
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# define BGFX_CONFIG_RENDERER_DIRECT3D11 (0 \
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|| BX_PLATFORM_LINUX \
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|| BX_PLATFORM_WINDOWS \
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|| BX_PLATFORM_WINRT \
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|| BX_PLATFORM_XBOXONE \
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? 1 : 0)
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# endif // BGFX_CONFIG_RENDERER_DIRECT3D11
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# ifndef BGFX_CONFIG_RENDERER_DIRECT3D12
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# define BGFX_CONFIG_RENDERER_DIRECT3D12 (0 \
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|| BX_PLATFORM_LINUX \
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|| BX_PLATFORM_WINDOWS \
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|| BX_PLATFORM_WINRT \
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|| BX_PLATFORM_XBOXONE \
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? 1 : 0)
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# endif // BGFX_CONFIG_RENDERER_DIRECT3D12
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# ifndef BGFX_CONFIG_RENDERER_GNM
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# define BGFX_CONFIG_RENDERER_GNM (0 \
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|| BX_PLATFORM_PS4 \
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? 1 : 0)
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# endif // BGFX_CONFIG_RENDERER_GNM
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# ifndef BGFX_CONFIG_RENDERER_METAL
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# define BGFX_CONFIG_RENDERER_METAL (0 \
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|| BX_PLATFORM_IOS \
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|| BX_PLATFORM_OSX \
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|| BX_PLATFORM_VISIONOS \
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? 1 : 0)
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# endif // BGFX_CONFIG_RENDERER_METAL
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# ifndef BGFX_CONFIG_RENDERER_NVN
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# define BGFX_CONFIG_RENDERER_NVN (0 \
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|| BX_PLATFORM_NX \
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? 1 : 0)
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# endif // BGFX_CONFIG_RENDERER_NVN
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# ifndef BGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION
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# define BGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION 1
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# endif // BGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION
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# ifndef BGFX_CONFIG_RENDERER_OPENGL
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# define BGFX_CONFIG_RENDERER_OPENGL (0 \
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|| BX_PLATFORM_LINUX \
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|| BX_PLATFORM_WINDOWS \
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? BGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION : 0)
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# endif // BGFX_CONFIG_RENDERER_OPENGL
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# ifndef BGFX_CONFIG_RENDERER_OPENGLES_MIN_VERSION
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# define BGFX_CONFIG_RENDERER_OPENGLES_MIN_VERSION (0 \
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|| BX_PLATFORM_ANDROID \
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? 30 : 1)
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# endif // BGFX_CONFIG_RENDERER_OPENGLES_MIN_VERSION
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# ifndef BGFX_CONFIG_RENDERER_OPENGLES
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# define BGFX_CONFIG_RENDERER_OPENGLES (0 \
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|| BX_PLATFORM_ANDROID \
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|| BX_PLATFORM_EMSCRIPTEN \
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|| BX_PLATFORM_NX \
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|| BX_PLATFORM_RPI \
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? BGFX_CONFIG_RENDERER_OPENGLES_MIN_VERSION : 0)
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# endif // BGFX_CONFIG_RENDERER_OPENGLES
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# ifndef BGFX_CONFIG_RENDERER_VULKAN
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# define BGFX_CONFIG_RENDERER_VULKAN (0 \
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|| BX_PLATFORM_ANDROID \
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|| BX_PLATFORM_LINUX \
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|| BX_PLATFORM_NX \
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|| BX_PLATFORM_OSX \
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|| BX_PLATFORM_WINDOWS \
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? 1 : 0)
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# endif // BGFX_CONFIG_RENDERER_VULKAN
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#else
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# ifndef BGFX_CONFIG_RENDERER_AGC
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# define BGFX_CONFIG_RENDERER_AGC 0
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# endif // BGFX_CONFIG_RENDERER_AGC
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# ifndef BGFX_CONFIG_RENDERER_DIRECT3D11
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# define BGFX_CONFIG_RENDERER_DIRECT3D11 0
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# endif // BGFX_CONFIG_RENDERER_DIRECT3D11
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# ifndef BGFX_CONFIG_RENDERER_DIRECT3D12
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# define BGFX_CONFIG_RENDERER_DIRECT3D12 0
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# endif // BGFX_CONFIG_RENDERER_DIRECT3D12
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# ifndef BGFX_CONFIG_RENDERER_GNM
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# define BGFX_CONFIG_RENDERER_GNM 0
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# endif // BGFX_CONFIG_RENDERER_GNM
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# ifndef BGFX_CONFIG_RENDERER_METAL
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# define BGFX_CONFIG_RENDERER_METAL 0
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# endif // BGFX_CONFIG_RENDERER_METAL
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# ifndef BGFX_CONFIG_RENDERER_NVN
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# define BGFX_CONFIG_RENDERER_NVN 0
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# endif // BGFX_CONFIG_RENDERER_NVN
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# ifndef BGFX_CONFIG_RENDERER_OPENGL
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# define BGFX_CONFIG_RENDERER_OPENGL 0
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# endif // BGFX_CONFIG_RENDERER_OPENGL
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# ifndef BGFX_CONFIG_RENDERER_OPENGLES
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# define BGFX_CONFIG_RENDERER_OPENGLES 0
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# endif // BGFX_CONFIG_RENDERER_OPENGLES
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# ifndef BGFX_CONFIG_RENDERER_VULKAN
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# define BGFX_CONFIG_RENDERER_VULKAN 0
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# endif // BGFX_CONFIG_RENDERER_VULKAN
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#endif // !defined...
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#if BGFX_CONFIG_RENDERER_OPENGL && BGFX_CONFIG_RENDERER_OPENGL < 21
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# undef BGFX_CONFIG_RENDERER_OPENGL
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# define BGFX_CONFIG_RENDERER_OPENGL 21
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#endif // BGFX_CONFIG_RENDERER_OPENGL && BGFX_CONFIG_RENDERER_OPENGL < 21
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#if BGFX_CONFIG_RENDERER_OPENGLES && BGFX_CONFIG_RENDERER_OPENGLES < 20
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# undef BGFX_CONFIG_RENDERER_OPENGLES
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# define BGFX_CONFIG_RENDERER_OPENGLES 20
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#endif // BGFX_CONFIG_RENDERER_OPENGLES && BGFX_CONFIG_RENDERER_OPENGLES < 20
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#if BGFX_CONFIG_RENDERER_OPENGL && BGFX_CONFIG_RENDERER_OPENGLES
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# error "Can't define both BGFX_CONFIG_RENDERER_OPENGL and BGFX_CONFIG_RENDERER_OPENGLES"
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#endif // BGFX_CONFIG_RENDERER_OPENGL && BGFX_CONFIG_RENDERER_OPENGLES
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/// Enable use of extensions.
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#ifndef BGFX_CONFIG_RENDERER_USE_EXTENSIONS
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# define BGFX_CONFIG_RENDERER_USE_EXTENSIONS 1
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#endif // BGFX_CONFIG_RENDERER_USE_EXTENSIONS
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#ifndef BGFX_CONFIG_RENDERER_DIRECT3D11_USE_STAGING_BUFFER
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# define BGFX_CONFIG_RENDERER_DIRECT3D11_USE_STAGING_BUFFER 0
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#endif // BGFX_CONFIG_RENDERER_DIRECT3D11_USE_STAGING_BUFFER
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/// Configure the amount of max descriptor sets per frame for Vulkan
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#ifndef BGFX_CONFIG_RENDERER_VULKAN_MAX_DESCRIPTOR_SETS_PER_FRAME
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# define BGFX_CONFIG_RENDERER_VULKAN_MAX_DESCRIPTOR_SETS_PER_FRAME 1024
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#endif // BGFX_CONFIG_RENDERER_VULKAN_MAX_DESCRIPTOR_SETS_PER_FRAME
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/// Enable use of tinystl.
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#ifndef BGFX_CONFIG_USE_TINYSTL
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# define BGFX_CONFIG_USE_TINYSTL 1
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#endif // BGFX_CONFIG_USE_TINYSTL
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/// Debug text maximum scale factor.
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#ifndef BGFX_CONFIG_DEBUG_TEXT_MAX_SCALE
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# define BGFX_CONFIG_DEBUG_TEXT_MAX_SCALE 4
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#endif // BGFX_CONFIG_DEBUG_TEXT_MAX_SCALE
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/// Enable nVidia PerfHUD integration.
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#ifndef BGFX_CONFIG_DEBUG_PERFHUD
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# define BGFX_CONFIG_DEBUG_PERFHUD 0
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#endif // BGFX_CONFIG_DEBUG_NVPERFHUD
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/// Enable annotation for graphics debuggers.
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#ifndef BGFX_CONFIG_DEBUG_ANNOTATION
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# define BGFX_CONFIG_DEBUG_ANNOTATION BGFX_CONFIG_DEBUG
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#endif // BGFX_CONFIG_DEBUG_ANNOTATION
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/// Enable DX11 object names.
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#ifndef BGFX_CONFIG_DEBUG_OBJECT_NAME
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# define BGFX_CONFIG_DEBUG_OBJECT_NAME BGFX_CONFIG_DEBUG_ANNOTATION
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#endif // BGFX_CONFIG_DEBUG_OBJECT_NAME
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/// Enable uniform debug checks.
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#ifndef BGFX_CONFIG_DEBUG_UNIFORM
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# define BGFX_CONFIG_DEBUG_UNIFORM BGFX_CONFIG_DEBUG
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#endif // BGFX_CONFIG_DEBUG_UNIFORM
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/// Enable occlusion debug checks.
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#ifndef BGFX_CONFIG_DEBUG_OCCLUSION
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# define BGFX_CONFIG_DEBUG_OCCLUSION BGFX_CONFIG_DEBUG
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#endif // BGFX_CONFIG_DEBUG_OCCLUSION
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#ifndef BGFX_CONFIG_MULTITHREADED
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# define BGFX_CONFIG_MULTITHREADED ( (0 == BX_PLATFORM_EMSCRIPTEN) ? 1 : 0)
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#endif // BGFX_CONFIG_MULTITHREADED
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#ifndef BGFX_CONFIG_MAX_DRAW_CALLS
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# define BGFX_CONFIG_MAX_DRAW_CALLS ( (64<<10)-1)
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#endif // BGFX_CONFIG_MAX_DRAW_CALLS
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#ifndef BGFX_CONFIG_MAX_BLIT_ITEMS
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# define BGFX_CONFIG_MAX_BLIT_ITEMS (1<<10)
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#endif // BGFX_CONFIG_MAX_BLIT_ITEMS
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#ifndef BGFX_CONFIG_MAX_MATRIX_CACHE
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# define BGFX_CONFIG_MAX_MATRIX_CACHE (BGFX_CONFIG_MAX_DRAW_CALLS+1)
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#endif // BGFX_CONFIG_MAX_MATRIX_CACHE
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#ifndef BGFX_CONFIG_MAX_RECT_CACHE
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# define BGFX_CONFIG_MAX_RECT_CACHE (4<<10)
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#endif // BGFX_CONFIG_MAX_RECT_CACHE
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#ifndef BGFX_CONFIG_SORT_KEY_NUM_BITS_DEPTH
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# define BGFX_CONFIG_SORT_KEY_NUM_BITS_DEPTH 32
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#endif // BGFX_CONFIG_SORT_KEY_NUM_BITS_DEPTH
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#ifndef BGFX_CONFIG_SORT_KEY_NUM_BITS_SEQ
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# define BGFX_CONFIG_SORT_KEY_NUM_BITS_SEQ 20
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#endif // BGFX_CONFIG_SORT_KEY_NUM_BITS_SEQ
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#ifndef BGFX_CONFIG_SORT_KEY_NUM_BITS_PROGRAM
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# define BGFX_CONFIG_SORT_KEY_NUM_BITS_PROGRAM 9
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#endif // BGFX_CONFIG_SORT_KEY_NUM_BITS_PROGRAM
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// Cannot be configured via compiler options.
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#define BGFX_CONFIG_MAX_PROGRAMS (1<<BGFX_CONFIG_SORT_KEY_NUM_BITS_PROGRAM)
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static_assert(bx::isPowerOf2(BGFX_CONFIG_MAX_PROGRAMS), "BGFX_CONFIG_MAX_PROGRAMS must be power of 2.");
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#ifndef BGFX_CONFIG_MAX_VIEWS
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# define BGFX_CONFIG_MAX_VIEWS 256
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#endif // BGFX_CONFIG_MAX_VIEWS
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static_assert(bx::isPowerOf2(BGFX_CONFIG_MAX_VIEWS), "BGFX_CONFIG_MAX_VIEWS must be power of 2.");
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#define BGFX_CONFIG_MAX_VIEW_NAME_RESERVED 6
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#ifndef BGFX_CONFIG_MAX_VIEW_NAME
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# define BGFX_CONFIG_MAX_VIEW_NAME 256
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#endif // BGFX_CONFIG_MAX_VIEW_NAME
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#ifndef BGFX_CONFIG_MAX_VERTEX_LAYOUTS
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# define BGFX_CONFIG_MAX_VERTEX_LAYOUTS 64
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#endif // BGFX_CONFIG_MAX_VERTEX_LAYOUTS
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#ifndef BGFX_CONFIG_MAX_INDEX_BUFFERS
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# define BGFX_CONFIG_MAX_INDEX_BUFFERS (4<<10)
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#endif // BGFX_CONFIG_MAX_INDEX_BUFFERS
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#ifndef BGFX_CONFIG_MAX_VERTEX_BUFFERS
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# define BGFX_CONFIG_MAX_VERTEX_BUFFERS (4<<10)
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#endif // BGFX_CONFIG_MAX_VERTEX_BUFFERS
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#ifndef BGFX_CONFIG_MAX_VERTEX_STREAMS
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# define BGFX_CONFIG_MAX_VERTEX_STREAMS 4
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#endif // BGFX_CONFIG_MAX_VERTEX_STREAMS
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#ifndef BGFX_CONFIG_MAX_DYNAMIC_INDEX_BUFFERS
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# define BGFX_CONFIG_MAX_DYNAMIC_INDEX_BUFFERS (4<<10)
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#endif // BGFX_CONFIG_MAX_DYNAMIC_INDEX_BUFFERS
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#ifndef BGFX_CONFIG_MAX_DYNAMIC_VERTEX_BUFFERS
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# define BGFX_CONFIG_MAX_DYNAMIC_VERTEX_BUFFERS (4<<10)
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#endif // BGFX_CONFIG_MAX_DYNAMIC_VERTEX_BUFFERS
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#ifndef BGFX_CONFIG_DYNAMIC_INDEX_BUFFER_SIZE
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# define BGFX_CONFIG_DYNAMIC_INDEX_BUFFER_SIZE (1<<20)
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#endif // BGFX_CONFIG_DYNAMIC_INDEX_BUFFER_SIZE
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#ifndef BGFX_CONFIG_DYNAMIC_VERTEX_BUFFER_SIZE
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# define BGFX_CONFIG_DYNAMIC_VERTEX_BUFFER_SIZE (3<<20)
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#endif // BGFX_CONFIG_DYNAMIC_VERTEX_BUFFER_SIZE
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#ifndef BGFX_CONFIG_MAX_SHADERS
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# define BGFX_CONFIG_MAX_SHADERS 512
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#endif // BGFX_CONFIG_MAX_FRAGMENT_SHADERS
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#ifndef BGFX_CONFIG_MAX_TEXTURES
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# define BGFX_CONFIG_MAX_TEXTURES (4<<10)
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#endif // BGFX_CONFIG_MAX_TEXTURES
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#ifndef BGFX_CONFIG_MAX_TEXTURE_SAMPLERS
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# define BGFX_CONFIG_MAX_TEXTURE_SAMPLERS 16
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#endif // BGFX_CONFIG_MAX_TEXTURE_SAMPLERS
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#ifndef BGFX_CONFIG_MAX_FRAME_BUFFERS
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# define BGFX_CONFIG_MAX_FRAME_BUFFERS 128
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#endif // BGFX_CONFIG_MAX_FRAME_BUFFERS
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#ifndef BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS
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# define BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS 8
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#endif // BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS
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#ifndef BGFX_CONFIG_MAX_UNIFORMS
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# define BGFX_CONFIG_MAX_UNIFORMS 512
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#endif // BGFX_CONFIG_MAX_UNIFORMS
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#ifndef BGFX_CONFIG_MAX_OCCLUSION_QUERIES
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# define BGFX_CONFIG_MAX_OCCLUSION_QUERIES 256
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#endif // BGFX_CONFIG_MAX_OCCLUSION_QUERIES
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#ifndef BGFX_CONFIG_MIN_RESOURCE_COMMAND_BUFFER_SIZE
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# define BGFX_CONFIG_MIN_RESOURCE_COMMAND_BUFFER_SIZE (64<<10)
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#endif // BGFX_CONFIG_MIN_RESOURCE_COMMAND_BUFFER_SIZE
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#ifndef BGFX_CONFIG_MAX_TRANSIENT_VERTEX_BUFFER_SIZE
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/// Maximum transient vertex buffer size. There is no growth, and all transient
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/// vertices must fit into this buffer.
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# define BGFX_CONFIG_MAX_TRANSIENT_VERTEX_BUFFER_SIZE (6<<20)
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#endif // BGFX_CONFIG_MAX_TRANSIENT_VERTEX_BUFFER_SIZE
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#ifndef BGFX_CONFIG_MAX_TRANSIENT_INDEX_BUFFER_SIZE
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/// Maximum transient index buffer size. There is no growth, and all transient
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/// indices must fit into this buffer.
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# define BGFX_CONFIG_MAX_TRANSIENT_INDEX_BUFFER_SIZE (2<<20)
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#endif // BGFX_CONFIG_MAX_TRANSIENT_INDEX_BUFFER_SIZE
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#ifndef BGFX_CONFIG_MIN_UNIFORM_BUFFER_SIZE
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/// Mimumum uniform buffer size. This buffer will resize on demand.
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# define BGFX_CONFIG_MIN_UNIFORM_BUFFER_SIZE (1<<20)
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#endif // BGFX_CONFIG_MIN_UNIFORM_BUFFER_SIZE
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#ifndef BGFX_CONFIG_UNIFORM_BUFFER_RESIZE_THRESHOLD_SIZE
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/// Max amount of unused uniform buffer space before uniform buffer resize.
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# define BGFX_CONFIG_UNIFORM_BUFFER_RESIZE_THRESHOLD_SIZE (64<<10)
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#endif // BGFX_CONFIG_UNIFORM_BUFFER_RESIZE_THRESHOLD_SIZE
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#ifndef BGFX_CONFIG_UNIFORM_BUFFER_RESIZE_INCREMENT_SIZE
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/// Increment of uniform buffer resize.
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# define BGFX_CONFIG_UNIFORM_BUFFER_RESIZE_INCREMENT_SIZE (1<<20)
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#endif // BGFX_CONFIG_UNIFORM_BUFFER_RESIZE_INCREMENT_SIZE
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#ifndef BGFX_CONFIG_CACHED_DEVICE_MEMORY_ALLOCATIONS_SIZE
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/// Amount of allowed memory allocations left on device to use for recycling during
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/// later allocations. This can be beneficial in case the driver is slow allocating memory
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/// on the device.
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/// Note: Currently only used by the Vulkan backend.
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# define BGFX_CONFIG_CACHED_DEVICE_MEMORY_ALLOCATIONS_SIZE (128 << 20)
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#endif // BGFX_CONFIG_CACHED_DEVICE_MEMORY_ALLOCATIONS_SIZE
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#ifndef BGFX_CONFIG_MAX_STAGING_SCRATCH_BUFFER_SIZE
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/// The threshold of data size above which the staging scratch buffer will
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/// not be used, but instead a separate device memory allocation will take
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/// place to stage the data for copying to device.
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# define BGFX_CONFIG_MAX_STAGING_SCRATCH_BUFFER_SIZE (16 << 20)
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#endif // BGFX_CONFIG_MAX_STAGING_SCRATCH_BUFFER_SIZE
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#ifndef BGFX_CONFIG_MAX_SCRATCH_STAGING_BUFFER_PER_FRAME_SIZE
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/// Amount of scratch buffer size (per in-flight frame) that will be reserved
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/// for staging data for copying to the device (such as vertex buffer data,
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/// texture data, etc). This buffer will be used instead of allocating memory
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/// on device separately for every data copy.
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/// Note: Currently only used by the Vulkan backend.
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# define BGFX_CONFIG_MAX_SCRATCH_STAGING_BUFFER_PER_FRAME_SIZE (32<<20)
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#endif // BGFX_CONFIG_MAX_SCRATCH_STAGING_BUFFER_PER_FRAME_SIZE
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#ifndef BGFX_CONFIG_MAX_INSTANCE_DATA_COUNT
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# define BGFX_CONFIG_MAX_INSTANCE_DATA_COUNT 5
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#endif // BGFX_CONFIG_MAX_INSTANCE_DATA_COUNT
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#ifndef BGFX_CONFIG_MAX_COLOR_PALETTE
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# define BGFX_CONFIG_MAX_COLOR_PALETTE 16
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#endif // BGFX_CONFIG_MAX_COLOR_PALETTE
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#define BGFX_CONFIG_DRAW_INDIRECT_STRIDE 32
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#ifndef BGFX_CONFIG_PROFILER
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# define BGFX_CONFIG_PROFILER 0
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#endif // BGFX_CONFIG_PROFILER
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#ifndef BGFX_CONFIG_RENDERDOC_LOG_FILEPATH
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# define BGFX_CONFIG_RENDERDOC_LOG_FILEPATH "temp/bgfx"
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#endif // BGFX_CONFIG_RENDERDOC_LOG_FILEPATH
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#ifndef BGFX_CONFIG_RENDERDOC_CAPTURE_KEYS
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# define BGFX_CONFIG_RENDERDOC_CAPTURE_KEYS { eRENDERDOC_Key_F11 }
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#endif // BGFX_CONFIG_RENDERDOC_CAPTURE_KEYS
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#ifndef BGFX_CONFIG_API_SEMAPHORE_TIMEOUT
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# define BGFX_CONFIG_API_SEMAPHORE_TIMEOUT (5000)
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#endif // BGFX_CONFIG_API_SEMAPHORE_TIMEOUT
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#ifndef BGFX_CONFIG_MIP_LOD_BIAS
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# define BGFX_CONFIG_MIP_LOD_BIAS 0
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#endif // BGFX_CONFIG_MIP_LOD_BIAS
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#ifndef BGFX_CONFIG_DEFAULT_MAX_ENCODERS
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# define BGFX_CONFIG_DEFAULT_MAX_ENCODERS ( (0 != BGFX_CONFIG_MULTITHREADED) ? 8 : 1)
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#endif // BGFX_CONFIG_DEFAULT_MAX_ENCODERS
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#ifndef BGFX_CONFIG_MAX_BACK_BUFFERS
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# define BGFX_CONFIG_MAX_BACK_BUFFERS 4
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#endif // BGFX_CONFIG_MAX_BACK_BUFFERS
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#ifndef BGFX_CONFIG_MAX_FRAME_LATENCY
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# define BGFX_CONFIG_MAX_FRAME_LATENCY 3
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#endif // BGFX_CONFIG_MAX_FRAME_LATENCY
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#ifndef BGFX_CONFIG_PREFER_DISCRETE_GPU
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// On laptops with integrated and discrete GPU, prefer selection of discrete GPU.
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// nVidia and AMD, on Windows only.
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# define BGFX_CONFIG_PREFER_DISCRETE_GPU BX_PLATFORM_WINDOWS
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#endif // BGFX_CONFIG_PREFER_DISCRETE_GPU
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#ifndef BGFX_CONFIG_MAX_SCREENSHOTS
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# define BGFX_CONFIG_MAX_SCREENSHOTS 4
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#endif // BGFX_CONFIG_MAX_SCREENSHOTS
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#ifndef BGFX_CONFIG_ENCODER_API_ONLY
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# define BGFX_CONFIG_ENCODER_API_ONLY 0
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#endif // BGFX_CONFIG_ENCODER_API_ONLY
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#endif // BGFX_CONFIG_H_HEADER_GUARD
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