[hlsl-out] work around microsoft/DirectXShaderCompiler#5082 (comment)

gfx-rs · May 10, 2023 · 059f6fb · 059f6fb
1 parent 45c616a
commit 059f6fb
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Showing 2 changed files with 7 additions and 5 deletions.
diff --git a/src/back/hlsl/writer.rs b/src/back/hlsl/writer.rs
@@ -2366,7 +2366,9 @@ impl<'a, W: fmt::Write> super::Writer<'a, W> {
 
                 if let Some(offset) = offset {
                     write!(self.out, ", ")?;
+                    write!(self.out, "int2(")?; // work around https://github.com/microsoft/DirectXShaderCompiler/issues/5082#issuecomment-1540147807
                     self.write_const_expression(module, offset)?;
+                    write!(self.out, ")")?;
                 }
 
                 write!(self.out, ")")?;

diff --git a/tests/out/hlsl/image.hlsl b/tests/out/hlsl/image.hlsl
@@ -242,10 +242,10 @@ float4 texture_sample() : SV_Target0
     float2 tc = (0.5).xx;
     float4 s1d = image_1d.Sample(sampler_reg, 0.5);
     float4 s2d = image_2d.Sample(sampler_reg, tc);
-    float4 s2d_offset = image_2d.Sample(sampler_reg, tc, int2(3, 1));
+    float4 s2d_offset = image_2d.Sample(sampler_reg, tc, int2(int2(3, 1)));
     float4 s2d_level = image_2d.SampleLevel(sampler_reg, tc, 2.3);
-    float4 s2d_level_offset = image_2d.SampleLevel(sampler_reg, tc, 2.3, int2(3, 1));
-    float4 s2d_bias_offset = image_2d.SampleBias(sampler_reg, tc, 2.0, int2(3, 1));
+    float4 s2d_level_offset = image_2d.SampleLevel(sampler_reg, tc, 2.3, int2(int2(3, 1)));
+    float4 s2d_bias_offset = image_2d.SampleBias(sampler_reg, tc, 2.0, int2(int2(3, 1)));
     return ((((s1d + s2d) + s2d_offset) + s2d_level) + s2d_level_offset);
 }
 
@@ -262,9 +262,9 @@ float4 gather() : SV_Target0
 {
     float2 tc_2 = (0.5).xx;
     float4 s2d_1 = image_2d.GatherGreen(sampler_reg, tc_2);
-    float4 s2d_offset_1 = image_2d.GatherAlpha(sampler_reg, tc_2, int2(3, 1));
+    float4 s2d_offset_1 = image_2d.GatherAlpha(sampler_reg, tc_2, int2(int2(3, 1)));
     float4 s2d_depth_1 = image_2d_depth.GatherCmp(sampler_cmp, tc_2, 0.5);
-    float4 s2d_depth_offset = image_2d_depth.GatherCmp(sampler_cmp, tc_2, 0.5, (3).xx);
+    float4 s2d_depth_offset = image_2d_depth.GatherCmp(sampler_cmp, tc_2, 0.5, int2((3).xx));
     uint4 u = image_2d_u32_.Gather(sampler_reg, tc_2);
     int4 i = image_2d_i32_.Gather(sampler_reg, tc_2);
     float4 f = (float4(u) + float4(i));