shader,spirv: Implement ImageQueryLod.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
index 310cc7af7..2cd6b38c4 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
@@ -161,6 +161,10 @@ Id EmitBindlessImageQueryDimensions(EmitContext&) {
     throw LogicError("Unreachable instruction");
 }
 
+Id EmitBindlessImageQueryLod(EmitContext&) {
+    throw LogicError("Unreachable instruction");
+}
+
 Id EmitBoundImageSampleImplicitLod(EmitContext&) {
     throw LogicError("Unreachable instruction");
 }
@@ -193,6 +197,10 @@ Id EmitBoundImageQueryDimensions(EmitContext&) {
     throw LogicError("Unreachable instruction");
 }
 
+Id EmitBoundImageQueryLod(EmitContext&) {
+    throw LogicError("Unreachable instruction");
+}
+
 Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
                               Id bias_lc, Id offset) {
     const auto info{inst->Flags<IR::TextureInstInfo>()};
@@ -287,4 +295,11 @@ Id EmitImageQueryDimensions(EmitContext& ctx, IR::Inst* inst, const IR::Value& i
     throw LogicError("Unspecified image type {}", info.type.Value());
 }
 
+Id EmitImageQueryLod(EmitContext& ctx, IR::Inst*, const IR::Value& index, Id coords) {
+    const Id zero{ctx.f32_zero_value};
+    const Id image{TextureImage(ctx, index)};
+    return ctx.OpCompositeConstruct(ctx.F32[4], ctx.OpImageQueryLod(ctx.F32[2], image, coords),
+                                    zero, zero);
+}
+
 } // namespace Shader::Backend::SPIRV