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D3D / VideoCommon: generate HLSL from SPIRV

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This commit is contained in:
iwubcode
2022-05-04 00:41:34 -05:00
parent 3790c99a7d
commit 5dd2704416
20 changed files with 780 additions and 1121 deletions
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86
Source/Core/VideoCommon/PostProcessing.cpp
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@ -441,10 +441,7 @@ std::string PostProcessing::GetUniformBufferHeader() const
{
std::ostringstream ss;
u32 unused_counter = 1;
if (g_ActiveConfig.backend_info.api_type == APIType::D3D)
ss << "cbuffer PSBlock : register(b0) {\n";
else
ss << "UBO_BINDING(std140, 1) uniform PSBlock {\n";
ss << "UBO_BINDING(std140, 1) uniform PSBlock {\n";
// Builtin uniforms
ss << " float4 resolution;\n";
@ -499,42 +496,20 @@ std::string PostProcessing::GetHeader() const
{
std::ostringstream ss;
ss << GetUniformBufferHeader();
if (g_ActiveConfig.backend_info.api_type == APIType::D3D)
ss << "SAMPLER_BINDING(0) uniform sampler2DArray samp0;\n";
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
ss << "Texture2DArray samp0 : register(t0);\n";
ss << "SamplerState samp0_ss : register(s0);\n";
ss << "VARYING_LOCATION(0) in VertexData {\n";
ss << " float3 v_tex0;\n";
ss << "};\n";
}
else
{
ss << "SAMPLER_BINDING(0) uniform sampler2DArray samp0;\n";
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
ss << "VARYING_LOCATION(0) in VertexData {\n";
ss << " float3 v_tex0;\n";
ss << "};\n";
}
else
{
ss << "VARYING_LOCATION(0) in float3 v_tex0;\n";
}
ss << "FRAGMENT_OUTPUT_LOCATION(0) out float4 ocol0;\n";
ss << "VARYING_LOCATION(0) in float3 v_tex0;\n";
}
// Rename main, since we need to set up globals
if (g_ActiveConfig.backend_info.api_type == APIType::D3D)
{
ss << R"(
#define main real_main
static float3 v_tex0;
static float4 ocol0;
// Wrappers for sampling functions.
#define texture(sampler, coords) sampler.Sample(sampler##_ss, coords)
#define textureOffset(sampler, coords, offset) sampler.Sample(sampler##_ss, coords, offset)
)";
}
ss << "FRAGMENT_OUTPUT_LOCATION(0) out float4 ocol0;\n";
ss << R"(
float4 Sample() { return texture(samp0, v_tex0); }
@ -591,22 +566,7 @@ void SetOutput(float4 color)
std::string PostProcessing::GetFooter() const
{
if (g_ActiveConfig.backend_info.api_type == APIType::D3D)
{
return R"(
#undef main
void main(in float3 v_tex0_ : TEXCOORD0, out float4 ocol0_ : SV_Target)
{
v_tex0 = v_tex0_;
real_main();
ocol0_ = ocol0;
})";
}
else
{
return {};
}
return {};
}
bool PostProcessing::CompileVertexShader()
@ -614,28 +574,20 @@ bool PostProcessing::CompileVertexShader()
std::ostringstream ss;
ss << GetUniformBufferHeader();
if (g_ActiveConfig.backend_info.api_type == APIType::D3D)
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
ss << "void main(in uint id : SV_VertexID, out float3 v_tex0 : TEXCOORD0,\n";
ss << " out float4 opos : SV_Position) {\n";
ss << "VARYING_LOCATION(0) out VertexData {\n";
ss << " float3 v_tex0;\n";
ss << "};\n";
}
else
{
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
ss << "VARYING_LOCATION(0) out VertexData {\n";
ss << " float3 v_tex0;\n";
ss << "};\n";
}
else
{
ss << "VARYING_LOCATION(0) out float3 v_tex0;\n";
}
ss << "#define id gl_VertexID\n";
ss << "#define opos gl_Position\n";
ss << "void main() {\n";
ss << "VARYING_LOCATION(0) out float3 v_tex0;\n";
}
ss << "#define id gl_VertexID\n";
ss << "#define opos gl_Position\n";
ss << "void main() {\n";
ss << " v_tex0 = float3(float((id << 1) & 2), float(id & 2), 0.0f);\n";
ss << " opos = float4(v_tex0.xy * float2(2.0f, -2.0f) + float2(-1.0f, 1.0f), 0.0f, 1.0f);\n";
ss << " v_tex0 = float3(src_rect.xy + (src_rect.zw * v_tex0.xy), float(src_layer));\n";