From 4a22942f452dd1bba5e10d20217a0bfbf214dacb Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 19 May 2021 02:05:24 -0300
Subject: glasm: Implement ImageFetch
---
.../backend/glasm/emit_glasm_image.cpp | 33 ++++++++++++++++++----
1 file changed, 27 insertions(+), 6 deletions(-)
(limited to 'src/shader_recompiler/backend/glasm/emit_glasm_image.cpp')
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
index 7b95505e25..333a003c9b 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
@@ -43,7 +43,11 @@ struct ScopedRegister {
std::string Texture(EmitContext& ctx, IR::TextureInstInfo info,
[[maybe_unused]] const IR::Value& index) {
// FIXME: indexed reads
- return fmt::format("texture[{}]", ctx.texture_bindings.at(info.descriptor_index));
+ if (info.type == TextureType::Buffer) {
+ return fmt::format("texture[{}]", ctx.texture_buffer_bindings.at(info.descriptor_index));
+ } else {
+ return fmt::format("texture[{}]", ctx.texture_bindings.at(info.descriptor_index));
+ }
}
std::string_view TextureType(IR::TextureInstInfo info) {
@@ -421,11 +425,28 @@ void EmitImageGatherDref(EmitContext& ctx, IR::Inst& inst, const IR::Value& inde
StoreSparse(ctx, sparse_inst);
}
-void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
- [[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord,
- [[maybe_unused]] Register offset, [[maybe_unused]] Register lod,
- [[maybe_unused]] Register ms) {
- throw NotImplementedException("GLASM instruction");
+void EmitImageFetch(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
+ const IR::Value& coord, const IR::Value& offset, ScalarS32 lod, ScalarS32 ms) {
+ const auto info{inst.Flags<IR::TextureInstInfo>()};
+ const auto sparse_inst{inst.GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)};
+ const std::string_view sparse_mod{sparse_inst ? ".SPARSE" : ""};
+ const std::string_view type{TextureType(info)};
+ const std::string texture{Texture(ctx, info, index)};
+ const std::string offset_vec{Offset(ctx, offset)};
+ const auto [coord_vec, coord_alloc]{Coord(ctx, coord)};
+ const Register ret{ctx.reg_alloc.Define(inst)};
+ if (info.type == TextureType::Buffer) {
+ ctx.Add("TXF.F{} {},{},{},{}{};", sparse_mod, ret, coord_vec, texture, type, offset_vec);
+ } else if (ms.type != Type::Void) {
+ ctx.Add("MOV.S {}.w,{};"
+ "TXFMS.F{} {},{},{},{}{};",
+ coord_vec, ms, sparse_mod, ret, coord_vec, texture, type, offset_vec);
+ } else {
+ ctx.Add("MOV.S {}.w,{};"
+ "TXF.F{} {},{},{},{}{};",
+ coord_vec, lod, sparse_mod, ret, coord_vec, texture, type, offset_vec);
+ }
+ StoreSparse(ctx, sparse_inst);
}
void EmitImageQueryDimensions(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
--
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