From 5fe7a5152200609d2b7d698c311be413cc7e93a1 Mon Sep 17 00:00:00 2001
From: CamilleLaVey <camillelavey99@gmail.com>
Date: Mon, 24 Nov 2025 14:27:56 -0400
Subject: [PATCH] [spir-v] Add is_integer flag to texture descriptors and
 update image type handling

---
 src/shader_recompiler/backend/spirv/spirv_emit_context.cpp | 3 ++-
 src/shader_recompiler/backend/spirv/spirv_emit_context.h   | 4 ++++
 src/shader_recompiler/ir_opt/texture_pass.cpp              | 4 +++-
 src/shader_recompiler/shader_info.h                        | 4 ++++
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp b/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
index aa7c98671e..66fab21be7 100644
--- a/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
+++ b/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
@@ -30,7 +30,7 @@ enum class Operation {
 
 Id ImageType(EmitContext& ctx, const TextureDescriptor& desc) {
     const spv::ImageFormat format{spv::ImageFormat::Unknown};
-    const Id type{ctx.F32[1]};
+    const Id type{desc.is_integer ? ctx.U32[1] : ctx.F32[1]};
     const bool depth{desc.is_depth};
     const bool ms{desc.is_multisample};
     switch (desc.type) {
@@ -1377,6 +1377,7 @@ void EmitContext::DefineTextures(const Info& info, u32& binding, u32& scaling_in
             .image_type = image_type,
             .count = desc.count,
             .is_multisample = desc.is_multisample,
+            .is_integer = desc.is_integer,
         });
         if (profile.supported_spirv >= 0x00010400) {
             interfaces.push_back(id);
diff --git a/src/shader_recompiler/backend/spirv/spirv_emit_context.h b/src/shader_recompiler/backend/spirv/spirv_emit_context.h
index 66cdb1d3db..ccbf82f0de 100644
--- a/src/shader_recompiler/backend/spirv/spirv_emit_context.h
+++ b/src/shader_recompiler/backend/spirv/spirv_emit_context.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -38,6 +41,7 @@ struct TextureDefinition {
     Id image_type;
     u32 count;
     bool is_multisample;
+    bool is_integer;
 };
 
 struct TextureBufferDefinition {
diff --git a/src/shader_recompiler/ir_opt/texture_pass.cpp b/src/shader_recompiler/ir_opt/texture_pass.cpp
index 9f04c0afaf..d9b5f75423 100644
--- a/src/shader_recompiler/ir_opt/texture_pass.cpp
+++ b/src/shader_recompiler/ir_opt/texture_pass.cpp
@@ -445,6 +445,7 @@ public:
         })};
         // TODO: Read this from TIC
         texture_descriptors[index].is_multisample |= desc.is_multisample;
+        texture_descriptors[index].is_integer |= desc.is_integer;
         return index;
     }
 
@@ -607,6 +608,7 @@ void TexturePass(Environment& env, IR::Program& program, const HostTranslateInfo
         default:
             break;
         }
+        const bool is_integer = IsTexturePixelFormatInteger(env, cbuf);
         u32 index;
         switch (inst->GetOpcode()) {
         case IR::Opcode::ImageRead:
@@ -627,7 +629,6 @@ void TexturePass(Environment& env, IR::Program& program, const HostTranslateInfo
             }
             const bool is_written{inst->GetOpcode() != IR::Opcode::ImageRead};
             const bool is_read{inst->GetOpcode() != IR::Opcode::ImageWrite};
-            const bool is_integer{IsTexturePixelFormatInteger(env, cbuf)};
             if (flags.type == TextureType::Buffer) {
                 index = descriptors.Add(ImageBufferDescriptor{
                     .format = flags.image_format,
@@ -672,6 +673,7 @@ void TexturePass(Environment& env, IR::Program& program, const HostTranslateInfo
                     .type = flags.type,
                     .is_depth = flags.is_depth != 0,
                     .is_multisample = is_multisample,
+                    .is_integer = is_integer,
                     .has_secondary = cbuf.has_secondary,
                     .cbuf_index = cbuf.index,
                     .cbuf_offset = cbuf.offset,
diff --git a/src/shader_recompiler/shader_info.h b/src/shader_recompiler/shader_info.h
index ed13e68209..adbba14ffd 100644
--- a/src/shader_recompiler/shader_info.h
+++ b/src/shader_recompiler/shader_info.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -206,6 +209,7 @@ struct TextureDescriptor {
     TextureType type;
     bool is_depth;
     bool is_multisample;
+    bool is_integer;
     bool has_secondary;
     u32 cbuf_index;
     u32 cbuf_offset;