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https://github.com/libsdl-org/SDL.git
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Added support for using the GPU renderer as an offscreen renderer
SDL_CreateGPURenderer() now allows passing in an existing GPU device and passing in a NULL window to create an offscreen renderer. Also renamed SDL_SetRenderGPUState() to SDL_SetGPURenderState().
This commit is contained in:
Sam Lantinga
@@ -1,94 +1,25 @@
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# Rebuilds the shaders needed for the GPU cube test.
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# For SPIR-V: requires glslangValidator and spirv-cross, which can be obtained from the LunarG Vulkan SDK.
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# For DXBC compilation: requires FXC, which is part of the Windows SDK.
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# For DXIL compilation, requires DXC, which can be obtained via the Windows SDK or via here: https://github.com/microsoft/DirectXShaderCompiler/releases
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# For Metal compilation: requires Xcode
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#!/usr/bin/env bash
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# On Windows, run this via Git Bash.
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# To add the Windows SDK (FXC/DXC) to your path, run the command:
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# `export PATH=$PATH:/c/Program\ Files\ \(x86\)/Windows\ Kits/10/bin/x.x.x.x/x64/`
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set -e
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export MSYS_NO_PATHCONV=1
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make-header() {
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xxd -i "$1" | sed \
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-e 's/^unsigned /const unsigned /g' \
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-e 's,^const,static const,' \
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> "$1.h"
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}
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# SPIR-V
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glslangValidator cube.glsl -V -S vert -o cube.vert.spv --quiet -DVERTEX
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glslangValidator cube.glsl -V -S frag -o cube.frag.spv --quiet
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xxd -i cube.vert.spv | perl -w -p -e 's/\Aunsigned /const unsigned /;' > cube.vert.h
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xxd -i cube.frag.spv | perl -w -p -e 's/\Aunsigned /const unsigned /;' > cube.frag.h
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cat cube.vert.h cube.frag.h > testgpu_spirv.h
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rm -f cube.vert.h cube.frag.h cube.vert.spv cube.frag.spv
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# Requires shadercross CLI installed from SDL_shadercross
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for filename in *.hlsl; do
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if [ -f "$filename" ]; then
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echo "$filename"
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shadercross "$filename" -o "${filename/.hlsl/.spv}"
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make-header "${filename/.hlsl/.spv}"
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shadercross "$filename" -o "${filename/.hlsl/.msl}"
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make-header "${filename/.hlsl/.msl}"
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shadercross "$filename" -o "${filename/.hlsl/.dxil}"
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make-header "${filename/.hlsl/.dxil}"
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fi
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done
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# Platform-specific compilation
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if [[ "$OSTYPE" == "darwin"* ]]; then
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# FIXME: Needs to be updated!
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# Xcode
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generate_shaders()
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{
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fileplatform=$1
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compileplatform=$2
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sdkplatform=$3
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minversion=$4
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xcrun -sdk $sdkplatform metal -c -std=$compileplatform-metal1.1 -m$sdkplatform-version-min=$minversion -Wall -O3 -DVERTEX=1 -o ./cube.vert.air ./cube.metal || exit $?
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xcrun -sdk $sdkplatform metal -c -std=$compileplatform-metal1.1 -m$sdkplatform-version-min=$minversion -Wall -O3 -o ./cube.frag.air ./cube.metal || exit $?
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xcrun -sdk $sdkplatform metallib -o cube.vert.metallib cube.vert.air || exit $?
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xcrun -sdk $sdkplatform metallib -o cube.frag.metallib cube.frag.air || exit $?
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xxd -i cube.vert.metallib | perl -w -p -e 's/\Aunsigned /const unsigned /;' >./cube.vert_$fileplatform.h
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xxd -i cube.frag.metallib | perl -w -p -e 's/\Aunsigned /const unsigned /;' >./cube.frag_$fileplatform.h
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rm -f cube.vert.air cube.vert.metallib
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rm -f cube.frag.air cube.frag.metallib
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}
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generate_shaders macos macos macosx 10.11
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generate_shaders ios ios iphoneos 8.0
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generate_shaders iphonesimulator ios iphonesimulator 8.0
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generate_shaders tvos ios appletvos 9.0
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generate_shaders tvsimulator ios appletvsimulator 9.0
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# Bundle together one mega-header
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rm -f testgpu_metallib.h
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echo "#if defined(SDL_PLATFORM_IOS)" >> testgpu_metallib.h
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echo "#if TARGET_OS_SIMULATOR" >> testgpu_metallib.h
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cat cube.vert_iphonesimulator.h >> testgpu_metallib.h
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cat cube.frag_iphonesimulator.h >> testgpu_metallib.h
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echo "#else" >> testgpu_metallib.h
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cat cube.vert_ios.h >> testgpu_metallib.h
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cat cube.frag_ios.h >> testgpu_metallib.h
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echo "#endif" >> testgpu_metallib.h
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echo "#elif defined(SDL_PLATFORM_TVOS)" >> testgpu_metallib.h
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echo "#if TARGET_OS_SIMULATOR" >> testgpu_metallib.h
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cat cube.vert_tvsimulator.h >> testgpu_metallib.h
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cat cube.frag_tvsimulator.h >> testgpu_metallib.h
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echo "#else" >> testgpu_metallib.h
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cat cube.vert_tvos.h >> testgpu_metallib.h
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cat cube.frag_tvos.h >> testgpu_metallib.h
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echo "#endif" >> testgpu_metallib.h
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echo "#else" >> testgpu_metallib.h
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cat cube.vert_macos.h >> testgpu_metallib.h
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cat cube.frag_macos.h >> testgpu_metallib.h
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echo "#endif" >> testgpu_metallib.h
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# Clean up
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rm -f cube.vert_macos.h cube.frag_macos.h
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rm -f cube.vert_iphonesimulator.h cube.frag_iphonesimulator.h
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rm -f cube.vert_tvsimulator.h cube.frag_tvsimulator.h
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rm -f cube.vert_ios.h cube.frag_ios.h
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rm -f cube.vert_tvos.h cube.frag_tvos.h
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elif [[ "$OSTYPE" == "cygwin"* ]] || [[ "$OSTYPE" == "msys"* ]]; then
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# DXC
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dxc cube.hlsl /E VSMain /T vs_6_0 /Fh cube.vert.h
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dxc cube.hlsl /E PSMain /T ps_6_0 /Fh cube.frag.h
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cat cube.vert.h | perl -w -p -e 's/BYTE/unsigned char/;s/g_VSMain/D3D12_CubeVert/;' > cube.vert.temp.h
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cat cube.frag.h | perl -w -p -e 's/BYTE/unsigned char/;s/g_PSMain/D3D12_CubeFrag/;' > cube.frag.temp.h
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cat cube.vert.temp.h cube.frag.temp.h > testgpu_dxil.h
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rm -f cube.vert.h cube.frag.h cube.vert.temp.h cube.frag.temp.h
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fi
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rm -f *.spv *.msl *.dxil
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