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authorameerj <52414509+ameerj@users.noreply.github.com>2021-06-18 06:54:16 +0200
committerameerj <52414509+ameerj@users.noreply.github.com>2021-07-23 03:51:38 +0200
commit9e066dcb15b46a1b71068c4865f4a035aa0a43d4 (patch)
tree14efef9dcf2b2f033b5fb979d62ab0e501523403 /src
parentshaders: Allow shader notify when async shaders is disabled (diff)
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Diffstat (limited to 'src')
-rw-r--r--src/shader_recompiler/backend/glsl/emit_glsl_special.cpp40
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;
}
}
}