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Merge pull request #9687 from ameerj/ogl-shader-ms 

glasm, glsl: Implement multisampled Image Fetch
This commit is contained in:
bunnei 2023-01-28 16:32:11 -08:00 committed by GitHub
parent 159aab9a97 c0cedbae94
commit 40e7d78179
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 46 additions and 33 deletions
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2
src/shader_recompiler/backend/glasm/emit_glasm.cpp
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@ -279,6 +279,8 @@ void SetupOptions(const IR::Program& program, const Profile& profile,
header += "OPTION NV_internal;"
"OPTION NV_shader_storage_buffer;"
"OPTION NV_gpu_program_fp64;";
// TODO: Enable only when MS is used
header += "OPTION NV_texture_multisample;";
if (info.uses_int64_bit_atomics) {
header += "OPTION NV_shader_atomic_int64;";
}

11
src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
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@ -59,7 +59,7 @@ std::string Image(EmitContext& ctx, IR::TextureInstInfo info,
}
}
std::string_view TextureType(IR::TextureInstInfo info) {
std::string_view TextureType(IR::TextureInstInfo info, bool is_ms = false) {
if (info.is_depth) {
switch (info.type) {
case TextureType::Color1D:
@ -88,9 +88,9 @@ std::string_view TextureType(IR::TextureInstInfo info) {
return "ARRAY1D";
case TextureType::Color2D:
case TextureType::Color2DRect:
return "2D";
return is_ms ? "2DMS" : "2D";
case TextureType::ColorArray2D:
return "ARRAY2D";
return is_ms ? "ARRAY2DMS" : "ARRAY2D";
case TextureType::Color3D:
return "3D";
case TextureType::ColorCube:
@ -510,15 +510,16 @@ void EmitImageFetch(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
const IR::Value& coord, const IR::Value& offset, ScalarS32 lod, ScalarS32 ms) {
const auto info{inst.Flags<IR::TextureInstInfo>()};
const auto sparse_inst{PrepareSparse(inst)};
const bool is_multisample{ms.type != Type::Void};
const std::string_view sparse_mod{sparse_inst ? ".SPARSE" : ""};
const std::string_view type{TextureType(info)};
const std::string_view type{TextureType(info, is_multisample)};
const std::string texture{Texture(ctx, info, index)};
const std::string offset_vec{Offset(ctx, offset)};
const auto [coord_vec, coord_alloc]{Coord(ctx, coord)};
const Register ret{ctx.reg_alloc.Define(inst)};
if (info.type == TextureType::Buffer) {
ctx.Add("TXF.F{} {},{},{},{}{};", sparse_mod, ret, coord_vec, texture, type, offset_vec);
} else if (ms.type != Type::Void) {
} else if (is_multisample) {
ctx.Add("MOV.S {}.w,{};"
"TXFMS.F{} {},{},{},{}{};",
coord_vec, ms, sparse_mod, ret, coord_vec, texture, type, offset_vec);

17
src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
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@ -414,7 +414,7 @@ void EmitImageGatherDref(EmitContext& ctx, IR::Inst& inst, const IR::Value& inde
void EmitImageFetch(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
std::string_view coords, std::string_view offset, std::string_view lod,
[[maybe_unused]] std::string_view ms) {
std::string_view ms) {
const auto info{inst.Flags<IR::TextureInstInfo>()};
if (info.has_bias) {
throw NotImplementedException("EmitImageFetch Bias texture samples");
@ -431,19 +431,24 @@ void EmitImageFetch(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
ctx.AddU1("{}=true;", *sparse_inst);
}
if (!sparse_inst || !supports_sparse) {
if (!offset.empty()) {
ctx.Add("{}=texelFetchOffset({},{},int({}),{});", texel, texture,
CoordsCastToInt(coords, info), lod, CoordsCastToInt(offset, info));
const auto int_coords{CoordsCastToInt(coords, info)};
if (!ms.empty()) {
ctx.Add("{}=texelFetch({},{},int({}));", texel, texture, int_coords, ms);
} else if (!offset.empty()) {
ctx.Add("{}=texelFetchOffset({},{},int({}),{});", texel, texture, int_coords, lod,
CoordsCastToInt(offset, info));
} else {
if (info.type == TextureType::Buffer) {
ctx.Add("{}=texelFetch({},int({}));", texel, texture, coords);
} else {
ctx.Add("{}=texelFetch({},{},int({}));", texel, texture,
CoordsCastToInt(coords, info), lod);
ctx.Add("{}=texelFetch({},{},int({}));", texel, texture, int_coords, lod);
}
}
return;
}
if (!ms.empty()) {
throw NotImplementedException("EmitImageFetch Sparse MSAA samples");
}
if (!offset.empty()) {
ctx.AddU1("{}=sparseTexelsResidentARB(sparseTexelFetchOffsetARB({},{},int({}),{},{}));",
*sparse_inst, texture, CastToIntVec(coords, info), lod,

17
src/shader_recompiler/backend/glsl/glsl_emit_context.cpp
View File

@ -61,8 +61,7 @@ std::string OutputDecorator(Stage stage, u32 size) {
}
}
std::string_view SamplerType(TextureType type, bool is_depth) {
if (is_depth) {
std::string_view DepthSamplerType(TextureType type) {
switch (type) {
case TextureType::Color1D:
return "sampler1DShadow";
@ -79,6 +78,11 @@ std::string_view SamplerType(TextureType type, bool is_depth) {
default:
throw NotImplementedException("Texture type: {}", type);
}
}
std::string_view ColorSamplerType(TextureType type, bool is_multisample = false) {
if (is_multisample) {
ASSERT(type == TextureType::Color2D || type == TextureType::ColorArray2D);
}
switch (type) {
case TextureType::Color1D:
@ -87,9 +91,9 @@ std::string_view SamplerType(TextureType type, bool is_depth) {
return "sampler1DArray";
case TextureType::Color2D:
case TextureType::Color2DRect:
return "sampler2D";
return is_multisample ? "sampler2DMS" : "sampler2D";
case TextureType::ColorArray2D:
return "sampler2DArray";
return is_multisample ? "sampler2DMSArray" : "sampler2DArray";
case TextureType::Color3D:
return "sampler3D";
case TextureType::ColorCube:
@ -677,7 +681,7 @@ void EmitContext::SetupTextures(Bindings& bindings) {
texture_buffers.reserve(info.texture_buffer_descriptors.size());
for (const auto& desc : info.texture_buffer_descriptors) {
texture_buffers.push_back({bindings.texture, desc.count});
const auto sampler_type{SamplerType(TextureType::Buffer, false)};
const auto sampler_type{ColorSamplerType(TextureType::Buffer)};
const auto array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""};
header += fmt::format("layout(binding={}) uniform {} tex{}{};", bindings.texture,
sampler_type, bindings.texture, array_decorator);
@ -686,7 +690,8 @@ void EmitContext::SetupTextures(Bindings& bindings) {
textures.reserve(info.texture_descriptors.size());
for (const auto& desc : info.texture_descriptors) {
textures.push_back({bindings.texture, desc.count});
const auto sampler_type{SamplerType(desc.type, desc.is_depth)};
const auto sampler_type{desc.is_depth ? DepthSamplerType(desc.type)
: ColorSamplerType(desc.type, desc.is_multisample)};
const auto array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""};
header += fmt::format("layout(binding={}) uniform {} tex{}{};", bindings.texture,
sampler_type, bindings.texture, array_decorator);