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Merge pull request #3979 from ReinUsesLisp/thread-group

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shader/other: Implement thread comparisons (NV_shader_thread_group)
This commit is contained in:
bunnei
2020-05-24 00:33:06 -04:00
committed by GitHub
parent 6a5cf1473e e2b67a868b
commit 487dd05170
4 changed files with 72 additions and 0 deletions
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23
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -2309,6 +2309,18 @@ private:
return {"gl_SubGroupInvocationARB", Type::Uint};
}
template <const std::string_view& comparison>
Expression ThreadMask(Operation) {
if (device.HasWarpIntrinsics()) {
return {fmt::format("gl_Thread{}MaskNV", comparison), Type::Uint};
}
if (device.HasShaderBallot()) {
return {fmt::format("uint(gl_SubGroup{}MaskARB)", comparison), Type::Uint};
}
LOG_ERROR(Render_OpenGL, "Thread mask intrinsics are required by the shader");
return {"0U", Type::Uint};
}
Expression ShuffleIndexed(Operation operation) {
std::string value = VisitOperand(operation, 0).AsFloat();
@ -2337,6 +2349,12 @@ private:
static constexpr std::string_view NotEqual = "!=";
static constexpr std::string_view GreaterEqual = ">=";
static constexpr std::string_view Eq = "Eq";
static constexpr std::string_view Ge = "Ge";
static constexpr std::string_view Gt = "Gt";
static constexpr std::string_view Le = "Le";
static constexpr std::string_view Lt = "Lt";
static constexpr std::string_view Add = "Add";
static constexpr std::string_view Min = "Min";
static constexpr std::string_view Max = "Max";
@ -2554,6 +2572,11 @@ private:
&GLSLDecompiler::VoteEqual,
&GLSLDecompiler::ThreadId,
&GLSLDecompiler::ThreadMask<Func::Eq>,
&GLSLDecompiler::ThreadMask<Func::Ge>,
&GLSLDecompiler::ThreadMask<Func::Gt>,
&GLSLDecompiler::ThreadMask<Func::Le>,
&GLSLDecompiler::ThreadMask<Func::Lt>,
&GLSLDecompiler::ShuffleIndexed,
&GLSLDecompiler::MemoryBarrierGL,