diff options
Diffstat (limited to '')
| -rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_special.cpp | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp index 1a2d3dcea..2a15fc29a 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp @@ -12,13 +12,47 @@ namespace Shader::Backend::GLSL { namespace { +std::string_view OutputVertexIndex(EmitContext& ctx) { + return ctx.stage == Stage::TessellationControl ? "[gl_InvocationID]" : ""; +} + void InitializeOutputVaryings(EmitContext& ctx) { if (ctx.stage == Stage::VertexB || ctx.stage == Stage::Geometry) { ctx.Add("gl_Position=vec4(0,0,0,1);"); } - for (size_t index = 0; index < 16; ++index) { - if (ctx.info.stores_generics[index]) { - ctx.Add("out_attr{}=vec4(0,0,0,1);", index); + for (size_t index = 0; index < ctx.info.stores_generics.size(); ++index) { + if (!ctx.info.stores_generics[index]) { + continue; + } + const auto& info_array{ctx.output_generics.at(index)}; + const auto output_decorator{OutputVertexIndex(ctx)}; + size_t element{}; + while (element < info_array.size()) { + const auto& info{info_array.at(element)}; + const auto varying_name{fmt::format("{}{}", info.name, output_decorator)}; + switch (info.num_components) { + case 1: { + const char value{element == 3 ? '1' : '0'}; + ctx.Add("{}={}.f;", varying_name, value); + break; + } + case 2: + case 3: + if (element + info.num_components < 4) { + ctx.Add("{}=vec{}(0);", varying_name, info.num_components); + } else { + // last element is the w component, must be initialized to 1 + const auto zeros{info.num_components == 3 ? "0,0," : "0,"}; + ctx.Add("{}=vec{}({}1);", varying_name, info.num_components, zeros); + } + break; + case 4: + ctx.Add("{}=vec4(0,0,0,1);", varying_name); + break; + default: + break; + } + element += info.num_components; } } } |