glsl: Address rest of feedback
This commit is contained in:
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c5dfa0b630
commit
d36f667bc0
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@ -148,6 +148,16 @@ std::string_view ImageFormatString(ImageFormat format) {
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}
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}
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std::string_view ImageAccessQualifier(bool is_written, bool is_read) {
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if (is_written && !is_read) {
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return "writeonly ";
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}
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if (is_read && !is_written) {
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return "readonly ";
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}
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return "";
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}
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std::string_view GetTessMode(TessPrimitive primitive) {
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switch (primitive) {
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case TessPrimitive::Triangles:
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@ -262,7 +272,9 @@ void SetupLegacyInPerFragment(EmitContext& ctx, std::string& header) {
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EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_,
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const RuntimeInfo& runtime_info_)
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: info{program.info}, profile{profile_}, runtime_info{runtime_info_} {
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header += "#pragma optionNV(fastmath off)\n";
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if (profile.need_fastmath_off) {
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header += "#pragma optionNV(fastmath off)\n";
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}
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SetupExtensions();
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stage = program.stage;
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switch (program.stage) {
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@ -335,7 +347,7 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
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}
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for (size_t index = 0; index < info.stores_generics.size(); ++index) {
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// TODO: Properly resolve attribute issues
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if (info.stores_generics[index] || stage == Stage::VertexA || stage == Stage::VertexB) {
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if (info.stores_generics[index] || StageInitializesVaryings()) {
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DefineGenericOutput(index, program.invocations);
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}
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}
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@ -347,6 +359,17 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
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DefineConstants();
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}
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bool EmitContext::StageInitializesVaryings() const noexcept {
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switch (stage) {
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case Stage::VertexA:
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case Stage::VertexB:
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case Stage::Geometry:
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return true;
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default:
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return false;
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}
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}
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void EmitContext::SetupExtensions() {
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if (info.uses_shadow_lod && profile.support_gl_texture_shadow_lod) {
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header += "#extension GL_EXT_texture_shadow_lod : enable\n";
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@ -361,7 +384,7 @@ void EmitContext::SetupExtensions() {
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header += "#extension GL_NV_shader_atomic_float : enable\n";
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}
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if (info.uses_atomic_f16x2_add || info.uses_atomic_f16x2_min || info.uses_atomic_f16x2_max) {
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header += "#extension NV_shader_atomic_fp16_vector : enable\n";
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header += "#extension GL_NV_shader_atomic_fp16_vector : enable\n";
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}
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if (info.uses_fp16) {
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if (profile.support_gl_nv_gpu_shader_5) {
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@ -392,7 +415,7 @@ void EmitContext::SetupExtensions() {
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if (info.stores_viewport_mask && profile.support_viewport_mask) {
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header += "#extension GL_NV_viewport_array2 : enable\n";
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}
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if (info.uses_typeless_image_reads || info.uses_typeless_image_writes) {
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if (info.uses_typeless_image_reads) {
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header += "#extension GL_EXT_shader_image_load_formatted : enable\n";
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}
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if (info.uses_derivatives && profile.support_gl_derivative_control) {
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@ -593,9 +616,9 @@ std::string EmitContext::DefineGlobalMemoryFunctions() {
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"return uvec4({0}[uint(addr-{1})>>2],{0}[uint(addr-{1}+4)>>2],{0}["
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"uint(addr-{1}+8)>>2],{0}[uint(addr-{1}+12)>>2]);}}");
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}
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write_func += "}";
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write_func_64 += "}";
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write_func_128 += "}";
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write_func += '}';
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write_func_64 += '}';
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write_func_128 += '}';
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load_func += "return 0u;}";
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load_func_64 += "return uvec2(0);}";
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load_func_128 += "return uvec4(0);}";
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@ -607,9 +630,10 @@ void EmitContext::SetupImages(Bindings& bindings) {
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for (const auto& desc : info.image_buffer_descriptors) {
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image_buffers.push_back({bindings.image, desc.count});
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const auto format{ImageFormatString(desc.format)};
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const auto qualifier{ImageAccessQualifier(desc.is_written, desc.is_read)};
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const auto array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""};
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header += fmt::format("layout(binding={}{}) uniform uimageBuffer img{}{};", bindings.image,
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format, bindings.image, array_decorator);
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header += fmt::format("layout(binding={}{}) uniform {}uimageBuffer img{}{};",
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bindings.image, format, qualifier, bindings.image, array_decorator);
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bindings.image += desc.count;
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}
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images.reserve(info.image_descriptors.size());
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@ -617,7 +641,7 @@ void EmitContext::SetupImages(Bindings& bindings) {
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images.push_back({bindings.image, desc.count});
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const auto format{ImageFormatString(desc.format)};
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const auto image_type{ImageType(desc.type)};
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const auto qualifier{desc.is_written ? "" : "readonly "};
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const auto qualifier{ImageAccessQualifier(desc.is_written, desc.is_read)};
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const auto array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""};
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header += fmt::format("layout(binding={}{})uniform {}{} img{}{};", bindings.image, format,
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qualifier, image_type, bindings.image, array_decorator);
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@ -136,6 +136,8 @@ public:
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code += '\n';
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}
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[[nodiscard]] bool StageInitializesVaryings() const noexcept;
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std::string header;
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std::string code;
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VarAlloc var_alloc;
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@ -329,7 +329,7 @@ void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, std::string_view val
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ctx.Add("gl_BackSecondaryColor.{}={};", swizzle, value);
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break;
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case IR::Attribute::FogCoordinate:
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ctx.Add("gl_FogFragCoord.x={};", value);
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ctx.Add("gl_FogFragCoord={};", value);
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break;
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case IR::Attribute::ClipDistance0:
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case IR::Attribute::ClipDistance1:
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@ -10,6 +10,17 @@
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#include "shader_recompiler/frontend/ir/value.h"
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namespace Shader::Backend::GLSL {
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namespace {
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void InitializeVaryings(EmitContext& ctx) {
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ctx.Add("gl_Position=vec4(0,0,0,1);");
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// TODO: Properly resolve attribute issues
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for (size_t index = 0; index < ctx.info.stores_generics.size() / 2; ++index) {
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if (!ctx.info.stores_generics[index]) {
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ctx.Add("out_attr{}=vec4(0,0,0,1);", index);
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}
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}
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}
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} // Anonymous namespace
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void EmitPhi(EmitContext& ctx, IR::Inst& phi) {
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const size_t num_args{phi.NumArgs()};
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@ -44,14 +55,8 @@ void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value&
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}
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void EmitPrologue(EmitContext& ctx) {
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if (ctx.stage == Stage::VertexA || ctx.stage == Stage::VertexB) {
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ctx.Add("gl_Position=vec4(0.0f, 0.0f, 0.0f, 1.0f);");
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// TODO: Properly resolve attribute issues
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for (size_t index = 0; index < ctx.info.stores_generics.size() / 2; ++index) {
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if (!ctx.info.stores_generics[index]) {
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ctx.Add("out_attr{}=vec4(0,0,0,1);", index);
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}
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}
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if (ctx.StageInitializesVaryings()) {
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InitializeVaryings(ctx);
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}
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}
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@ -59,6 +64,7 @@ void EmitEpilogue(EmitContext&) {}
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void EmitEmitVertex(EmitContext& ctx, const IR::Value& stream) {
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ctx.Add("EmitStreamVertex(int({}));", ctx.var_alloc.Consume(stream));
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InitializeVaryings(ctx);
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}
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void EmitEndPrimitive(EmitContext& ctx, const IR::Value& stream) {
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@ -312,11 +312,14 @@ public:
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}
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u32 Add(const ImageBufferDescriptor& desc) {
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return Add(image_buffer_descriptors, desc, [&desc](const auto& existing) {
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const u32 index{Add(image_buffer_descriptors, desc, [&desc](const auto& existing) {
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return desc.format == existing.format && desc.cbuf_index == existing.cbuf_index &&
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desc.cbuf_offset == existing.cbuf_offset && desc.count == existing.count &&
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desc.size_shift == existing.size_shift;
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});
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})};
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image_buffer_descriptors[index].is_written |= desc.is_written;
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image_buffer_descriptors[index].is_read |= desc.is_read;
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return index;
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}
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u32 Add(const TextureDescriptor& desc) {
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@ -339,6 +342,7 @@ public:
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desc.size_shift == existing.size_shift;
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})};
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image_descriptors[index].is_written |= desc.is_written;
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image_descriptors[index].is_read |= desc.is_read;
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return index;
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}
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@ -430,10 +434,12 @@ void TexturePass(Environment& env, IR::Program& program) {
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throw NotImplementedException("Unexpected separate sampler");
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}
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const bool is_written{inst->GetOpcode() != IR::Opcode::ImageRead};
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const bool is_read{inst->GetOpcode() == IR::Opcode::ImageRead};
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if (flags.type == TextureType::Buffer) {
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index = descriptors.Add(ImageBufferDescriptor{
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.format = flags.image_format,
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.is_written = is_written,
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.is_read = is_read,
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.cbuf_index = cbuf.index,
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.cbuf_offset = cbuf.offset,
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.count = cbuf.count,
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@ -444,6 +450,7 @@ void TexturePass(Environment& env, IR::Program& program) {
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.type = flags.type,
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.format = flags.image_format,
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.is_written = is_written,
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.is_read = is_read,
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.cbuf_index = cbuf.index,
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.cbuf_offset = cbuf.offset,
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.count = cbuf.count,
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@ -97,6 +97,8 @@ struct Profile {
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/// Fragment outputs have to be declared even if they are not written to avoid undefined values.
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/// See Ori and the Blind Forest's main menu for reference.
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bool need_declared_frag_colors{};
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/// Prevents fast math optimizations that may cause inaccuracies
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bool need_fastmath_off{};
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/// OpFClamp is broken and OpFMax + OpFMin should be used instead
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bool has_broken_spirv_clamp{};
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@ -75,6 +75,7 @@ using TextureBufferDescriptors = boost::container::small_vector<TextureBufferDes
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struct ImageBufferDescriptor {
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ImageFormat format;
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bool is_written;
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bool is_read;
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u32 cbuf_index;
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u32 cbuf_offset;
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u32 count;
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@ -99,6 +100,7 @@ struct ImageDescriptor {
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TextureType type;
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ImageFormat format;
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bool is_written;
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bool is_read;
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u32 cbuf_index;
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u32 cbuf_offset;
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u32 count;
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@ -162,6 +162,7 @@ Device::Device() {
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has_amd_shader_half_float = GLAD_GL_AMD_gpu_shader_half_float;
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has_sparse_texture_2 = GLAD_GL_ARB_sparse_texture2;
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warp_size_potentially_larger_than_guest = !is_nvidia && !is_intel;
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need_fastmath_off = is_nvidia;
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// At the moment of writing this, only Nvidia's driver optimizes BufferSubData on exclusive
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// uniform buffers as "push constants"
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@ -136,6 +136,10 @@ public:
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return warp_size_potentially_larger_than_guest;
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}
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bool NeedsFastmathOff() const {
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return need_fastmath_off;
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}
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private:
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static bool TestVariableAoffi();
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static bool TestPreciseBug();
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@ -171,6 +175,7 @@ private:
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bool has_amd_shader_half_float{};
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bool has_sparse_texture_2{};
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bool warp_size_potentially_larger_than_guest{};
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bool need_fastmath_off{};
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};
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} // namespace OpenGL
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@ -132,28 +132,23 @@ GraphicsPipeline::GraphicsPipeline(const Device& device, TextureCache& texture_c
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std::ranges::transform(infos, stage_infos.begin(),
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[](const Shader::Info* info) { return info ? *info : Shader::Info{}; });
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auto func{[this, device, sources, shader_notify, xfb_state](ShaderContext::Context*) mutable {
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if (device.UseAssemblyShaders()) {
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for (size_t stage = 0; stage < 5; ++stage) {
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const auto code{sources[stage]};
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if (code.empty()) {
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continue;
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}
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if (!device.UseAssemblyShaders()) {
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program.handle = glCreateProgram();
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}
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for (size_t stage = 0; stage < 5; ++stage) {
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const auto code{sources[stage]};
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if (code.empty()) {
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continue;
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}
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if (device.UseAssemblyShaders()) {
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assembly_programs[stage] = CompileProgram(code, AssemblyStage(stage));
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enabled_stages_mask |= (assembly_programs[stage].handle != 0 ? 1 : 0) << stage;
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}
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} else {
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program.handle = glCreateProgram();
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for (size_t stage = 0; stage < 5; ++stage) {
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const auto code{sources[stage]};
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if (code.empty()) {
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continue;
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}
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} else {
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AttachShader(Stage(stage), program.handle, code);
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}
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LinkProgram(program.handle);
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}
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if (shader_notify) {
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shader_notify->MarkShaderComplete();
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if (!device.UseAssemblyShaders()) {
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LinkProgram(program.handle);
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}
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u32 num_textures{};
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u32 num_images{};
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@ -198,6 +193,9 @@ GraphicsPipeline::GraphicsPipeline(const Device& device, TextureCache& texture_c
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if (assembly_shaders && xfb_state) {
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GenerateTransformFeedbackState(*xfb_state);
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}
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if (shader_notify) {
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shader_notify->MarkShaderComplete();
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}
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is_built.store(true, std::memory_order_relaxed);
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}};
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if (thread_worker) {
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@ -193,6 +193,7 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
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.lower_left_origin_mode = true,
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.need_declared_frag_colors = true,
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.need_fastmath_off = device.NeedsFastmathOff(),
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.has_broken_spirv_clamp = true,
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.has_broken_unsigned_image_offsets = true,
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