diff options
Diffstat (limited to 'src/shader_recompiler/backend/glsl/glsl_emit_context.cpp')
| -rw-r--r-- | src/shader_recompiler/backend/glsl/glsl_emit_context.cpp | 718 |
1 files changed, 718 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/glsl/glsl_emit_context.cpp b/src/shader_recompiler/backend/glsl/glsl_emit_context.cpp new file mode 100644 index 000000000..1de017e76 --- /dev/null +++ b/src/shader_recompiler/backend/glsl/glsl_emit_context.cpp @@ -0,0 +1,718 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "shader_recompiler/backend/bindings.h" +#include "shader_recompiler/backend/glsl/glsl_emit_context.h" +#include "shader_recompiler/frontend/ir/program.h" +#include "shader_recompiler/profile.h" +#include "shader_recompiler/runtime_info.h" + +namespace Shader::Backend::GLSL { +namespace { +u32 CbufIndex(size_t offset) { + return (offset / 4) % 4; +} + +char Swizzle(size_t offset) { + return "xyzw"[CbufIndex(offset)]; +} + +std::string_view InterpDecorator(Interpolation interp) { + switch (interp) { + case Interpolation::Smooth: + return ""; + case Interpolation::Flat: + return "flat "; + case Interpolation::NoPerspective: + return "noperspective "; + } + throw InvalidArgument("Invalid interpolation {}", interp); +} + +std::string_view InputArrayDecorator(Stage stage) { + switch (stage) { + case Stage::Geometry: + case Stage::TessellationControl: + case Stage::TessellationEval: + return "[]"; + default: + return ""; + } +} + +bool StoresPerVertexAttributes(Stage stage) { + switch (stage) { + case Stage::VertexA: + case Stage::VertexB: + case Stage::Geometry: + case Stage::TessellationEval: + return true; + default: + return false; + } +} + +std::string OutputDecorator(Stage stage, u32 size) { + switch (stage) { + case Stage::TessellationControl: + return fmt::format("[{}]", size); + default: + return ""; + } +} + +std::string_view SamplerType(TextureType type, bool is_depth) { + if (is_depth) { + switch (type) { + case TextureType::Color1D: + return "sampler1DShadow"; + case TextureType::ColorArray1D: + return "sampler1DArrayShadow"; + case TextureType::Color2D: + return "sampler2DShadow"; + case TextureType::ColorArray2D: + return "sampler2DArrayShadow"; + case TextureType::ColorCube: + return "samplerCubeShadow"; + case TextureType::ColorArrayCube: + return "samplerCubeArrayShadow"; + default: + throw NotImplementedException("Texture type: {}", type); + } + } + switch (type) { + case TextureType::Color1D: + return "sampler1D"; + case TextureType::ColorArray1D: + return "sampler1DArray"; + case TextureType::Color2D: + return "sampler2D"; + case TextureType::ColorArray2D: + return "sampler2DArray"; + case TextureType::Color3D: + return "sampler3D"; + case TextureType::ColorCube: + return "samplerCube"; + case TextureType::ColorArrayCube: + return "samplerCubeArray"; + case TextureType::Buffer: + return "samplerBuffer"; + default: + throw NotImplementedException("Texture type: {}", type); + } +} + +std::string_view ImageType(TextureType type) { + switch (type) { + case TextureType::Color1D: + return "uimage1D"; + case TextureType::ColorArray1D: + return "uimage1DArray"; + case TextureType::Color2D: + return "uimage2D"; + case TextureType::ColorArray2D: + return "uimage2DArray"; + case TextureType::Color3D: + return "uimage3D"; + case TextureType::ColorCube: + return "uimageCube"; + case TextureType::ColorArrayCube: + return "uimageCubeArray"; + case TextureType::Buffer: + return "uimageBuffer"; + default: + throw NotImplementedException("Image type: {}", type); + } +} + +std::string_view ImageFormatString(ImageFormat format) { + switch (format) { + case ImageFormat::Typeless: + return ""; + case ImageFormat::R8_UINT: + return ",r8ui"; + case ImageFormat::R8_SINT: + return ",r8i"; + case ImageFormat::R16_UINT: + return ",r16ui"; + case ImageFormat::R16_SINT: + return ",r16i"; + case ImageFormat::R32_UINT: + return ",r32ui"; + case ImageFormat::R32G32_UINT: + return ",rg32ui"; + case ImageFormat::R32G32B32A32_UINT: + return ",rgba32ui"; + default: + throw NotImplementedException("Image format: {}", format); + } +} + +std::string_view ImageAccessQualifier(bool is_written, bool is_read) { + if (is_written && !is_read) { + return "writeonly "; + } + if (is_read && !is_written) { + return "readonly "; + } + return ""; +} + +std::string_view GetTessMode(TessPrimitive primitive) { + switch (primitive) { + case TessPrimitive::Triangles: + return "triangles"; + case TessPrimitive::Quads: + return "quads"; + case TessPrimitive::Isolines: + return "isolines"; + } + throw InvalidArgument("Invalid tessellation primitive {}", primitive); +} + +std::string_view GetTessSpacing(TessSpacing spacing) { + switch (spacing) { + case TessSpacing::Equal: + return "equal_spacing"; + case TessSpacing::FractionalOdd: + return "fractional_odd_spacing"; + case TessSpacing::FractionalEven: + return "fractional_even_spacing"; + } + throw InvalidArgument("Invalid tessellation spacing {}", spacing); +} + +std::string_view InputPrimitive(InputTopology topology) { + switch (topology) { + case InputTopology::Points: + return "points"; + case InputTopology::Lines: + return "lines"; + case InputTopology::LinesAdjacency: + return "lines_adjacency"; + case InputTopology::Triangles: + return "triangles"; + case InputTopology::TrianglesAdjacency: + return "triangles_adjacency"; + } + throw InvalidArgument("Invalid input topology {}", topology); +} + +std::string_view OutputPrimitive(OutputTopology topology) { + switch (topology) { + case OutputTopology::PointList: + return "points"; + case OutputTopology::LineStrip: + return "line_strip"; + case OutputTopology::TriangleStrip: + return "triangle_strip"; + } + throw InvalidArgument("Invalid output topology {}", topology); +} + +void SetupLegacyOutPerVertex(EmitContext& ctx, std::string& header) { + if (!ctx.info.stores.Legacy()) { + return; + } + if (ctx.info.stores.FixedFunctionTexture()) { + header += "vec4 gl_TexCoord[8];"; + } + if (ctx.info.stores.AnyComponent(IR::Attribute::ColorFrontDiffuseR)) { + header += "vec4 gl_FrontColor;"; + } + if (ctx.info.stores.AnyComponent(IR::Attribute::ColorFrontSpecularR)) { + header += "vec4 gl_FrontSecondaryColor;"; + } + if (ctx.info.stores.AnyComponent(IR::Attribute::ColorBackDiffuseR)) { + header += "vec4 gl_BackColor;"; + } + if (ctx.info.stores.AnyComponent(IR::Attribute::ColorBackSpecularR)) { + header += "vec4 gl_BackSecondaryColor;"; + } +} + +void SetupOutPerVertex(EmitContext& ctx, std::string& header) { + if (!StoresPerVertexAttributes(ctx.stage)) { + return; + } + if (ctx.uses_geometry_passthrough) { + return; + } + header += "out gl_PerVertex{vec4 gl_Position;"; + if (ctx.info.stores[IR::Attribute::PointSize]) { + header += "float gl_PointSize;"; + } + if (ctx.info.stores.ClipDistances()) { + header += "float gl_ClipDistance[];"; + } + if (ctx.info.stores[IR::Attribute::ViewportIndex] && + ctx.profile.support_viewport_index_layer_non_geometry && ctx.stage != Stage::Geometry) { + header += "int gl_ViewportIndex;"; + } + SetupLegacyOutPerVertex(ctx, header); + header += "};"; + if (ctx.info.stores[IR::Attribute::ViewportIndex] && ctx.stage == Stage::Geometry) { + header += "out int gl_ViewportIndex;"; + } +} + +void SetupInPerVertex(EmitContext& ctx, std::string& header) { + // Currently only required for TessellationControl to adhere to + // ARB_separate_shader_objects requirements + if (ctx.stage != Stage::TessellationControl) { + return; + } + const bool loads_position{ctx.info.loads.AnyComponent(IR::Attribute::PositionX)}; + const bool loads_point_size{ctx.info.loads[IR::Attribute::PointSize]}; + const bool loads_clip_distance{ctx.info.loads.ClipDistances()}; + const bool loads_per_vertex{loads_position || loads_point_size || loads_clip_distance}; + if (!loads_per_vertex) { + return; + } + header += "in gl_PerVertex{"; + if (loads_position) { + header += "vec4 gl_Position;"; + } + if (loads_point_size) { + header += "float gl_PointSize;"; + } + if (loads_clip_distance) { + header += "float gl_ClipDistance[];"; + } + header += "}gl_in[gl_MaxPatchVertices];"; +} + +void SetupLegacyInPerFragment(EmitContext& ctx, std::string& header) { + if (!ctx.info.loads.Legacy()) { + return; + } + header += "in gl_PerFragment{"; + if (ctx.info.loads.FixedFunctionTexture()) { + header += "vec4 gl_TexCoord[8];"; + } + if (ctx.info.loads.AnyComponent(IR::Attribute::ColorFrontDiffuseR)) { + header += "vec4 gl_Color;"; + } + header += "};"; +} + +} // Anonymous namespace + +EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_, + const RuntimeInfo& runtime_info_) + : info{program.info}, profile{profile_}, runtime_info{runtime_info_}, stage{program.stage}, + uses_geometry_passthrough{program.is_geometry_passthrough && + profile.support_geometry_shader_passthrough} { + if (profile.need_fastmath_off) { + header += "#pragma optionNV(fastmath off)\n"; + } + SetupExtensions(); + switch (program.stage) { + case Stage::VertexA: + case Stage::VertexB: + stage_name = "vs"; + break; + case Stage::TessellationControl: + stage_name = "tcs"; + header += fmt::format("layout(vertices={})out;", program.invocations); + break; + case Stage::TessellationEval: + stage_name = "tes"; + header += fmt::format("layout({},{},{})in;", GetTessMode(runtime_info.tess_primitive), + GetTessSpacing(runtime_info.tess_spacing), + runtime_info.tess_clockwise ? "cw" : "ccw"); + break; + case Stage::Geometry: + stage_name = "gs"; + header += fmt::format("layout({})in;", InputPrimitive(runtime_info.input_topology)); + if (uses_geometry_passthrough) { + header += "layout(passthrough)in gl_PerVertex{vec4 gl_Position;};"; + break; + } else if (program.is_geometry_passthrough && + !profile.support_geometry_shader_passthrough) { + LOG_WARNING(Shader_GLSL, "Passthrough geometry program used but not supported"); + } + header += fmt::format( + "layout({},max_vertices={})out;in gl_PerVertex{{vec4 gl_Position;}}gl_in[];", + OutputPrimitive(program.output_topology), program.output_vertices); + break; + case Stage::Fragment: + stage_name = "fs"; + position_name = "gl_FragCoord"; + if (runtime_info.force_early_z) { + header += "layout(early_fragment_tests)in;"; + } + if (info.uses_sample_id) { + header += "in int gl_SampleID;"; + } + if (info.stores_sample_mask) { + header += "out int gl_SampleMask[];"; + } + break; + case Stage::Compute: + stage_name = "cs"; + const u32 local_x{std::max(program.workgroup_size[0], 1u)}; + const u32 local_y{std::max(program.workgroup_size[1], 1u)}; + const u32 local_z{std::max(program.workgroup_size[2], 1u)}; + header += fmt::format("layout(local_size_x={},local_size_y={},local_size_z={}) in;", + local_x, local_y, local_z); + break; + } + SetupOutPerVertex(*this, header); + SetupInPerVertex(*this, header); + SetupLegacyInPerFragment(*this, header); + + for (size_t index = 0; index < IR::NUM_GENERICS; ++index) { + if (!info.loads.Generic(index) || !runtime_info.previous_stage_stores.Generic(index)) { + continue; + } + const auto qualifier{uses_geometry_passthrough ? "passthrough" + : fmt::format("location={}", index)}; + header += fmt::format("layout({}){}in vec4 in_attr{}{};", qualifier, + InterpDecorator(info.interpolation[index]), index, + InputArrayDecorator(stage)); + } + for (size_t index = 0; index < info.uses_patches.size(); ++index) { + if (!info.uses_patches[index]) { + continue; + } + const auto qualifier{stage == Stage::TessellationControl ? "out" : "in"}; + header += fmt::format("layout(location={})patch {} vec4 patch{};", index, qualifier, index); + } + if (stage == Stage::Fragment) { + for (size_t index = 0; index < info.stores_frag_color.size(); ++index) { + if (!info.stores_frag_color[index] && !profile.need_declared_frag_colors) { + continue; + } + header += fmt::format("layout(location={})out vec4 frag_color{};", index, index); + } + } + for (size_t index = 0; index < IR::NUM_GENERICS; ++index) { + if (info.stores.Generic(index)) { + DefineGenericOutput(index, program.invocations); + } + } + if (info.uses_rescaling_uniform) { + header += "layout(location=0) uniform vec4 scaling;"; + } + DefineConstantBuffers(bindings); + DefineStorageBuffers(bindings); + SetupImages(bindings); + SetupTextures(bindings); + DefineHelperFunctions(); + DefineConstants(); +} + +void EmitContext::SetupExtensions() { + header += "#extension GL_ARB_separate_shader_objects : enable\n"; + if (info.uses_shadow_lod && profile.support_gl_texture_shadow_lod) { + header += "#extension GL_EXT_texture_shadow_lod : enable\n"; + } + if (info.uses_int64 && profile.support_int64) { + header += "#extension GL_ARB_gpu_shader_int64 : enable\n"; + } + if (info.uses_int64_bit_atomics) { + header += "#extension GL_NV_shader_atomic_int64 : enable\n"; + } + if (info.uses_atomic_f32_add) { + header += "#extension GL_NV_shader_atomic_float : enable\n"; + } + if (info.uses_atomic_f16x2_add || info.uses_atomic_f16x2_min || info.uses_atomic_f16x2_max) { + header += "#extension GL_NV_shader_atomic_fp16_vector : enable\n"; + } + if (info.uses_fp16) { + if (profile.support_gl_nv_gpu_shader_5) { + header += "#extension GL_NV_gpu_shader5 : enable\n"; + } + if (profile.support_gl_amd_gpu_shader_half_float) { + header += "#extension GL_AMD_gpu_shader_half_float : enable\n"; + } + } + if (info.uses_subgroup_invocation_id || info.uses_subgroup_mask || info.uses_subgroup_vote || + info.uses_subgroup_shuffles || info.uses_fswzadd) { + header += "#extension GL_ARB_shader_ballot : enable\n" + "#extension GL_ARB_shader_group_vote : enable\n"; + if (!info.uses_int64 && profile.support_int64) { + header += "#extension GL_ARB_gpu_shader_int64 : enable\n"; + } + if (profile.support_gl_warp_intrinsics) { + header += "#extension GL_NV_shader_thread_shuffle : enable\n"; + } + } + if ((info.stores[IR::Attribute::ViewportIndex] || info.stores[IR::Attribute::Layer]) && + profile.support_viewport_index_layer_non_geometry && stage != Stage::Geometry) { + header += "#extension GL_ARB_shader_viewport_layer_array : enable\n"; + } + if (info.uses_sparse_residency && profile.support_gl_sparse_textures) { + header += "#extension GL_ARB_sparse_texture2 : enable\n"; + } + if (info.stores[IR::Attribute::ViewportMask] && profile.support_viewport_mask) { + header += "#extension GL_NV_viewport_array2 : enable\n"; + } + if (info.uses_typeless_image_reads) { + header += "#extension GL_EXT_shader_image_load_formatted : enable\n"; + } + if (info.uses_derivatives && profile.support_gl_derivative_control) { + header += "#extension GL_ARB_derivative_control : enable\n"; + } + if (uses_geometry_passthrough) { + header += "#extension GL_NV_geometry_shader_passthrough : enable\n"; + } +} + +void EmitContext::DefineConstantBuffers(Bindings& bindings) { + if (info.constant_buffer_descriptors.empty()) { + return; + } + for (const auto& desc : info.constant_buffer_descriptors) { + header += fmt::format( + "layout(std140,binding={}) uniform {}_cbuf_{}{{vec4 {}_cbuf{}[{}];}};", + bindings.uniform_buffer, stage_name, desc.index, stage_name, desc.index, 4 * 1024); + bindings.uniform_buffer += desc.count; + } +} + +void EmitContext::DefineStorageBuffers(Bindings& bindings) { + if (info.storage_buffers_descriptors.empty()) { + return; + } + u32 index{}; + for (const auto& desc : info.storage_buffers_descriptors) { + header += fmt::format("layout(std430,binding={}) buffer {}_ssbo_{}{{uint {}_ssbo{}[];}};", + bindings.storage_buffer, stage_name, bindings.storage_buffer, + stage_name, index); + bindings.storage_buffer += desc.count; + index += desc.count; + } +} + +void EmitContext::DefineGenericOutput(size_t index, u32 invocations) { + static constexpr std::string_view swizzle{"xyzw"}; + const size_t base_index{static_cast<size_t>(IR::Attribute::Generic0X) + index * 4}; + u32 element{0}; + while (element < 4) { + std::string definition{fmt::format("layout(location={}", index)}; + const u32 remainder{4 - element}; + const TransformFeedbackVarying* xfb_varying{}; + if (!runtime_info.xfb_varyings.empty()) { + xfb_varying = &runtime_info.xfb_varyings[base_index + element]; + xfb_varying = xfb_varying && xfb_varying->components > 0 ? xfb_varying : nullptr; + } + const u32 num_components{xfb_varying ? xfb_varying->components : remainder}; + if (element > 0) { + definition += fmt::format(",component={}", element); + } + if (xfb_varying) { + definition += + fmt::format(",xfb_buffer={},xfb_stride={},xfb_offset={}", xfb_varying->buffer, + xfb_varying->stride, xfb_varying->offset); + } + std::string name{fmt::format("out_attr{}", index)}; + if (num_components < 4 || element > 0) { + name += fmt::format("_{}", swizzle.substr(element, num_components)); + } + const auto type{num_components == 1 ? "float" : fmt::format("vec{}", num_components)}; + definition += fmt::format(")out {} {}{};", type, name, OutputDecorator(stage, invocations)); + header += definition; + + const GenericElementInfo element_info{ + .name = name, + .first_element = element, + .num_components = num_components, + }; + std::fill_n(output_generics[index].begin() + element, num_components, element_info); + element += num_components; + } +} + +void EmitContext::DefineHelperFunctions() { + header += "\n#define ftoi floatBitsToInt\n#define ftou floatBitsToUint\n" + "#define itof intBitsToFloat\n#define utof uintBitsToFloat\n"; + if (info.uses_global_increment || info.uses_shared_increment) { + header += "uint CasIncrement(uint op_a,uint op_b){return op_a>=op_b?0u:(op_a+1u);}"; + } + if (info.uses_global_decrement || info.uses_shared_decrement) { + header += "uint CasDecrement(uint op_a,uint op_b){" + "return op_a==0||op_a>op_b?op_b:(op_a-1u);}"; + } + if (info.uses_atomic_f32_add) { + header += "uint CasFloatAdd(uint op_a,float op_b){" + "return ftou(utof(op_a)+op_b);}"; + } + if (info.uses_atomic_f32x2_add) { + header += "uint CasFloatAdd32x2(uint op_a,vec2 op_b){" + "return packHalf2x16(unpackHalf2x16(op_a)+op_b);}"; + } + if (info.uses_atomic_f32x2_min) { + header += "uint CasFloatMin32x2(uint op_a,vec2 op_b){return " + "packHalf2x16(min(unpackHalf2x16(op_a),op_b));}"; + } + if (info.uses_atomic_f32x2_max) { + header += "uint CasFloatMax32x2(uint op_a,vec2 op_b){return " + "packHalf2x16(max(unpackHalf2x16(op_a),op_b));}"; + } + if (info.uses_atomic_f16x2_add) { + header += "uint CasFloatAdd16x2(uint op_a,f16vec2 op_b){return " + "packFloat2x16(unpackFloat2x16(op_a)+op_b);}"; + } + if (info.uses_atomic_f16x2_min) { + header += "uint CasFloatMin16x2(uint op_a,f16vec2 op_b){return " + "packFloat2x16(min(unpackFloat2x16(op_a),op_b));}"; + } + if (info.uses_atomic_f16x2_max) { + header += "uint CasFloatMax16x2(uint op_a,f16vec2 op_b){return " + "packFloat2x16(max(unpackFloat2x16(op_a),op_b));}"; + } + if (info.uses_atomic_s32_min) { + header += "uint CasMinS32(uint op_a,uint op_b){return uint(min(int(op_a),int(op_b)));}"; + } + if (info.uses_atomic_s32_max) { + header += "uint CasMaxS32(uint op_a,uint op_b){return uint(max(int(op_a),int(op_b)));}"; + } + if (info.uses_global_memory && profile.support_int64) { + header += DefineGlobalMemoryFunctions(); + } + if (info.loads_indexed_attributes) { + const bool is_array{stage == Stage::Geometry}; + const auto vertex_arg{is_array ? ",uint vertex" : ""}; + std::string func{ + fmt::format("float IndexedAttrLoad(int offset{}){{int base_index=offset>>2;uint " + "masked_index=uint(base_index)&3u;switch(base_index>>2){{", + vertex_arg)}; + if (info.loads.AnyComponent(IR::Attribute::PositionX)) { + const auto position_idx{is_array ? "gl_in[vertex]." : ""}; + func += fmt::format("case {}:return {}{}[masked_index];", + static_cast<u32>(IR::Attribute::PositionX) >> 2, position_idx, + position_name); + } + const u32 base_attribute_value = static_cast<u32>(IR::Attribute::Generic0X) >> 2; + for (u32 index = 0; index < IR::NUM_GENERICS; ++index) { + if (!info.loads.Generic(index)) { + continue; + } + const auto vertex_idx{is_array ? "[vertex]" : ""}; + func += fmt::format("case {}:return in_attr{}{}[masked_index];", + base_attribute_value + index, index, vertex_idx); + } + func += "default: return 0.0;}}"; + header += func; + } + if (info.stores_indexed_attributes) { + // TODO + } +} + +std::string EmitContext::DefineGlobalMemoryFunctions() { + const auto define_body{[&](std::string& func, size_t index, std::string_view return_statement) { + const auto& ssbo{info.storage_buffers_descriptors[index]}; + const u32 size_cbuf_offset{ssbo.cbuf_offset + 8}; + const auto ssbo_addr{fmt::format("ssbo_addr{}", index)}; + const auto cbuf{fmt::format("{}_cbuf{}", stage_name, ssbo.cbuf_index)}; + std::array<std::string, 2> addr_xy; + std::array<std::string, 2> size_xy; + for (size_t i = 0; i < addr_xy.size(); ++i) { + const auto addr_loc{ssbo.cbuf_offset + 4 * i}; + const auto size_loc{size_cbuf_offset + 4 * i}; + addr_xy[i] = fmt::format("ftou({}[{}].{})", cbuf, addr_loc / 16, Swizzle(addr_loc)); + size_xy[i] = fmt::format("ftou({}[{}].{})", cbuf, size_loc / 16, Swizzle(size_loc)); + } + const auto addr_pack{fmt::format("packUint2x32(uvec2({},{}))", addr_xy[0], addr_xy[1])}; + const auto addr_statment{fmt::format("uint64_t {}={};", ssbo_addr, addr_pack)}; + func += addr_statment; + + const auto size_vec{fmt::format("uvec2({},{})", size_xy[0], size_xy[1])}; + const auto comp_lhs{fmt::format("(addr>={})", ssbo_addr)}; + const auto comp_rhs{fmt::format("(addr<({}+uint64_t({})))", ssbo_addr, size_vec)}; + const auto comparison{fmt::format("if({}&&{}){{", comp_lhs, comp_rhs)}; + func += comparison; + + const auto ssbo_name{fmt::format("{}_ssbo{}", stage_name, index)}; + func += fmt::format(fmt::runtime(return_statement), ssbo_name, ssbo_addr); + }}; + std::string write_func{"void WriteGlobal32(uint64_t addr,uint data){"}; + std::string write_func_64{"void WriteGlobal64(uint64_t addr,uvec2 data){"}; + std::string write_func_128{"void WriteGlobal128(uint64_t addr,uvec4 data){"}; + std::string load_func{"uint LoadGlobal32(uint64_t addr){"}; + std::string load_func_64{"uvec2 LoadGlobal64(uint64_t addr){"}; + std::string load_func_128{"uvec4 LoadGlobal128(uint64_t addr){"}; + const size_t num_buffers{info.storage_buffers_descriptors.size()}; + for (size_t index = 0; index < num_buffers; ++index) { + if (!info.nvn_buffer_used[index]) { + continue; + } + define_body(write_func, index, "{0}[uint(addr-{1})>>2]=data;return;}}"); + define_body(write_func_64, index, + "{0}[uint(addr-{1})>>2]=data.x;{0}[uint(addr-{1}+4)>>2]=data.y;return;}}"); + define_body(write_func_128, index, + "{0}[uint(addr-{1})>>2]=data.x;{0}[uint(addr-{1}+4)>>2]=data.y;{0}[uint(" + "addr-{1}+8)>>2]=data.z;{0}[uint(addr-{1}+12)>>2]=data.w;return;}}"); + define_body(load_func, index, "return {0}[uint(addr-{1})>>2];}}"); + define_body(load_func_64, index, + "return uvec2({0}[uint(addr-{1})>>2],{0}[uint(addr-{1}+4)>>2]);}}"); + define_body(load_func_128, index, + "return uvec4({0}[uint(addr-{1})>>2],{0}[uint(addr-{1}+4)>>2],{0}[" + "uint(addr-{1}+8)>>2],{0}[uint(addr-{1}+12)>>2]);}}"); + } + write_func += '}'; + write_func_64 += '}'; + write_func_128 += '}'; + load_func += "return 0u;}"; + load_func_64 += "return uvec2(0);}"; + load_func_128 += "return uvec4(0);}"; + return write_func + write_func_64 + write_func_128 + load_func + load_func_64 + load_func_128; +} + +void EmitContext::SetupImages(Bindings& bindings) { + image_buffers.reserve(info.image_buffer_descriptors.size()); + for (const auto& desc : info.image_buffer_descriptors) { + image_buffers.push_back({bindings.image, desc.count}); + const auto format{ImageFormatString(desc.format)}; + const auto qualifier{ImageAccessQualifier(desc.is_written, desc.is_read)}; + const auto array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""}; + header += fmt::format("layout(binding={}{}) uniform {}uimageBuffer img{}{};", + bindings.image, format, qualifier, bindings.image, array_decorator); + bindings.image += desc.count; + } + images.reserve(info.image_descriptors.size()); + for (const auto& desc : info.image_descriptors) { + images.push_back({bindings.image, desc.count}); + const auto format{ImageFormatString(desc.format)}; + const auto image_type{ImageType(desc.type)}; + const auto qualifier{ImageAccessQualifier(desc.is_written, desc.is_read)}; + const auto array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""}; + header += fmt::format("layout(binding={}{})uniform {}{} img{}{};", bindings.image, format, + qualifier, image_type, bindings.image, array_decorator); + bindings.image += desc.count; + } +} + +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 array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""}; + header += fmt::format("layout(binding={}) uniform {} tex{}{};", bindings.texture, + sampler_type, bindings.texture, array_decorator); + bindings.texture += desc.count; + } + 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 array_decorator{desc.count > 1 ? fmt::format("[{}]", desc.count) : ""}; + header += fmt::format("layout(binding={}) uniform {} tex{}{};", bindings.texture, + sampler_type, bindings.texture, array_decorator); + bindings.texture += desc.count; + } +} + +void EmitContext::DefineConstants() { + if (info.uses_fswzadd) { + header += "const float FSWZ_A[]=float[4](-1.f,1.f,-1.f,0.f);" + "const float FSWZ_B[]=float[4](-1.f,-1.f,1.f,-1.f);"; + } +} + +} // namespace Shader::Backend::GLSL |