From af9696059cc24e07fba2920814725e56c3c61df0 Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Wed, 2 Jun 2021 20:37:24 -0400
Subject: glsl: Implement Images
---
.../backend/glsl/emit_glsl_image.cpp | 33 ++++++++++++++++++----
1 file changed, 28 insertions(+), 5 deletions(-)
(limited to 'src/shader_recompiler/backend/glsl/emit_glsl_image.cpp')
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
index c62451e239..8c54f0fb34 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
@@ -14,15 +14,25 @@ namespace {
std::string Texture(EmitContext& ctx, const IR::TextureInstInfo& info,
[[maybe_unused]] const IR::Value& index) {
if (info.type == TextureType::Buffer) {
- throw NotImplementedException("TextureType::Buffer");
+ return fmt::format("tex{}", ctx.texture_buffer_bindings.at(info.descriptor_index));
} else {
return fmt::format("tex{}", ctx.texture_bindings.at(info.descriptor_index));
}
}
+std::string Image(EmitContext& ctx, const IR::TextureInstInfo& info,
+ [[maybe_unused]] const IR::Value& index) {
+ if (info.type == TextureType::Buffer) {
+ return fmt::format("img{}", ctx.image_buffer_bindings.at(info.descriptor_index));
+ } else {
+ return fmt::format("img{}", ctx.image_bindings.at(info.descriptor_index));
+ }
+}
+
std::string CastToIntVec(std::string_view value, const IR::TextureInstInfo& info) {
switch (info.type) {
case TextureType::Color1D:
+ case TextureType::Buffer:
return fmt::format("int({})", value);
case TextureType::ColorArray1D:
case TextureType::Color2D:
@@ -41,6 +51,7 @@ std::string CastToIntVec(std::string_view value, const IR::TextureInstInfo& info
std::string TexelFetchCastToInt(std::string_view value, const IR::TextureInstInfo& info) {
switch (info.type) {
case TextureType::Color1D:
+ case TextureType::Buffer:
return fmt::format("int({})", value);
case TextureType::ColorArray1D:
case TextureType::Color2D:
@@ -349,8 +360,12 @@ void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst
ctx.Add("{}=texelFetchOffset({},{},int({}),{});", texel, texture,
TexelFetchCastToInt(coords, info), lod, TexelFetchCastToInt(offset, info));
} else {
- ctx.Add("{}=texelFetch({},{},int({}));", texel, texture,
- TexelFetchCastToInt(coords, info), lod);
+ if (info.type == TextureType::Buffer) {
+ ctx.Add("{}=texelFetch({},int({}));", texel, texture, coords);
+ } else {
+ ctx.Add("{}=texelFetch({},{},int({}));", texel, texture,
+ TexelFetchCastToInt(coords, info), lod);
+ }
}
return;
}
@@ -434,14 +449,22 @@ void EmitImageGradient([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
void EmitImageRead([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index,
[[maybe_unused]] std::string_view coords) {
- NotImplemented();
+ const auto info{inst.Flags<IR::TextureInstInfo>()};
+ const auto sparse_inst{PrepareSparse(inst)};
+ if (sparse_inst) {
+ throw NotImplementedException("EmitImageRead Sparse");
+ }
+ const auto image{Image(ctx, info, index)};
+ ctx.AddU32x4("{}=uvec4(imageLoad({},{}));", inst, image, TexelFetchCastToInt(coords, info));
}
void EmitImageWrite([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& index,
[[maybe_unused]] std::string_view coords,
[[maybe_unused]] std::string_view color) {
- NotImplemented();
+ const auto info{inst.Flags<IR::TextureInstInfo>()};
+ const auto image{Image(ctx, info, index)};
+ ctx.Add("imageStore({},{},{});", image, TexelFetchCastToInt(coords, info), color);
}
void EmitBindlessImageSampleImplicitLod(EmitContext&) {
--
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