diff options
| -rw-r--r-- | src/shader_recompiler/backend/spirv/emit_spirv_image.cpp | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp index 3588f052b..1d5364309 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp @@ -355,11 +355,22 @@ Id EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& Id EmitImageSampleDrefImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords, Id dref, Id bias_lc, const IR::Value& offset) { const auto info{inst->Flags<IR::TextureInstInfo>()}; - const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, bias_lc, - offset); - return Emit(&EmitContext::OpImageSparseSampleDrefImplicitLod, - &EmitContext::OpImageSampleDrefImplicitLod, ctx, inst, ctx.F32[1], - Texture(ctx, info, index), coords, dref, operands.MaskOptional(), operands.Span()); + if (ctx.stage == Stage::Fragment) { + const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, + bias_lc, offset); + return Emit(&EmitContext::OpImageSparseSampleDrefImplicitLod, + &EmitContext::OpImageSampleDrefImplicitLod, ctx, inst, ctx.F32[1], + Texture(ctx, info, index), coords, dref, operands.MaskOptional(), + operands.Span()); + } else { + // Implicit lods in compute behave on hardware as if sampling from LOD 0. + // This check is to ensure all drivers behave this way. + const Id lod{ctx.Const(0.0f)}; + const ImageOperands operands(ctx, false, true, false, lod, offset); + return Emit(&EmitContext::OpImageSparseSampleDrefExplicitLod, + &EmitContext::OpImageSampleDrefExplicitLod, ctx, inst, ctx.F32[1], + Texture(ctx, info, index), coords, dref, operands.Mask(), operands.Span()); + } } Id EmitImageSampleDrefExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, |