From e4ba75570570007d4c85d6d28a4f890ce58b02e8 Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Sat, 29 May 2021 14:21:25 -0400
Subject: [PATCH] glsl: Implement TEXS
---
.../backend/glsl/emit_glsl_image.cpp | 30 ++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
index 68701ee52..d721b018b 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
@@ -38,6 +38,17 @@ std::string CastToIntVec(std::string_view value, const IR::TextureInstInfo& info
}
}
+std::string ShadowSamplerVecCast(TextureType type) {
+ switch (type) {
+ case TextureType::ColorArray2D:
+ case TextureType::ColorCube:
+ case TextureType::ColorArrayCube:
+ return "vec4";
+ default:
+ return "vec3";
+ }
+}
+
IR::Inst* PrepareSparse(IR::Inst& inst) {
const auto sparse_inst{inst.GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)};
if (sparse_inst) {
@@ -126,7 +137,24 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] std::string_view dref,
[[maybe_unused]] std::string_view bias_lc,
[[maybe_unused]] const IR::Value& offset) {
- throw NotImplementedException("GLSL Instruction");
+ const auto info{inst.Flags<IR::TextureInstInfo>()};
+ if (info.has_bias) {
+ throw NotImplementedException("Bias texture samples");
+ }
+ if (info.has_lod_clamp) {
+ throw NotImplementedException("Lod clamp samples");
+ }
+ if (!offset.IsEmpty()) {
+ throw NotImplementedException("textureLodOffset");
+ }
+ const auto texture{Texture(ctx, info, index)};
+ const auto bias{info.has_bias ? fmt::format(",{}", bias_lc) : ""};
+ const auto cast{ShadowSamplerVecCast(info.type)};
+ if (ctx.stage == Stage::Fragment) {
+ ctx.AddF32("{}=texture({},{}({},{}){});", inst, texture, cast, coords, dref, bias);
+ } else {
+ ctx.AddF32("{}=textureLod({},{}({},{}),0.0);", inst, texture, cast, coords, dref);
+ }
}
void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,