mirror of
https://gitlab.winehq.org/wine/vkd3d.git
synced 2024-11-21 16:46:41 -08:00
c2a7a40d3a
If a hlsl_ir_load loads a variable whose components are stored from different
instructions, copy propagation doesn't replace it.
But if all these instructions are constants (which currently is the case
for value constructors), the load could be replaced with a constant value.
Which is expected in some other instructions, e.g. texel_offsets when
using aoffimmi modifiers.
For instance, this shader:
```
sampler s;
Texture2D t;
float4 main() : sv_target
{
return t.Gather(s, float2(0.6, 0.6), int2(0, 0));
}
```
results in the following IR before applying the patch:
```
float | 6.00000024e-01
float | 6.00000024e-01
uint | 0
| = (<constructor-2>[@4].x @2)
uint | 1
| = (<constructor-2>[@6].x @3)
float2 | <constructor-2>
int | 0
int | 0
uint | 0
| = (<constructor-5>[@11].x @9)
uint | 1
| = (<constructor-5>[@13].x @10)
int2 | <constructor-5>
float4 | gather_red(resource = t, sampler = s, coords = @8, offset = @15)
| return
| = (<output-sv_target0> @16)
```
and this IR afterwards:
```
float2 | {6.00000024e-01 6.00000024e-01 }
int2 | {0 0 }
float4 | gather_red(resource = t, sampler = s, coords = @2, offset = @3)
| return
| = (<output-sv_target0> @4)
```
167 lines
2.4 KiB
Plaintext
167 lines
2.4 KiB
Plaintext
[require]
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shader model >= 4.0
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[texture 0]
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size (2, 2)
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0.1 0.2 0.3 0.4 0.5 0.7 0.6 0.8
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0.6 0.5 0.2 0.1 0.8 0.0 0.7 1.0
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[pixel shader]
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Texture2D t;
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struct foo {
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int3 a;
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Texture2D b;
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};
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float4 main(float4 pos : sv_position) : sv_target
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{
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struct foo q;
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q.a = int3(pos.xy, 0);
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q.b = t;
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return q.b.Load(q.a);
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}
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[test]
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draw quad
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probe (0, 0) rgba (0.1, 0.2, 0.3, 0.4)
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probe (1, 0) rgba (0.5, 0.7, 0.6, 0.8)
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probe (0, 1) rgba (0.6, 0.5, 0.2, 0.1)
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probe (1, 1) rgba (0.8, 0.0, 0.7, 1.0)
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[texture 0]
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size (1, 1)
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1.0 1.0 1.0 1.0
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[texture 1]
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size (1, 1)
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2.0 2.0 2.0 1.0
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[texture 2]
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size (1, 1)
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3.0 3.0 3.0 1.0
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[pixel shader todo]
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Texture2D tex[3];
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struct foo {
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float4 p;
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Texture2D t;
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};
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float4 main() : sv_target
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{
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struct foo s[3];
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s[0].t = tex[0];
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s[1].t = tex[1];
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s[2].t = tex[2];
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return 100 * s[2].t.Load(0) + 10 * s[0].t.Load(0) + s[1].t.Load(0);
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}
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[test]
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todo draw quad
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todo probe all rgba (312, 312, 312, 111)
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[pixel shader]
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Texture2D tex1;
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Texture2D tex2;
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Texture2D tex3;
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float4 main() : sv_target
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{
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Texture2D t[3][2];
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t[0][0] = tex1; // Note: Only invalid in shader model 5.1, array ref. cannot be used as l-value.
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t[0][1] = tex2;
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t[1][0] = tex3;
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t[1][1] = tex1;
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t[2][0] = tex2;
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t[2][1] = tex3;
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return 1000 * t[2][0].Load(0) + 100 * t[1][1].Load(0) + 10 * t[2][1].Load(0) + t[0][1].Load(0);
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}
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[test]
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draw quad
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probe all rgba (2132, 2132, 2132, 1111)
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[pixel shader fail]
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Texture2D tex[3];
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uniform int n;
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struct foo {
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float4 p;
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Texture2D t;
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};
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float4 main() : sv_target
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{
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struct foo s[3];
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s[0].t = tex[0];
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s[1].t = tex[1];
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s[2].t = tex[2];
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return s[n].t.Load(0);
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}
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[pixel shader fail]
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// Note: Only valid in shader model 5.1
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Texture2D tex[3];
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uniform int n;
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float4 main() : sv_target
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{
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return tex[n].Load(0);
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}
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[pixel shader fail]
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// Note: Only valid in shader model 5.1
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RWTexture2D<float4> tex[3];
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uniform int n;
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float4 main() : sv_target
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{
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tex[n][int2(0, 0)] = 0.6;
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return 0;
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}
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[pixel shader]
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Texture2D tex;
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uniform float f;
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struct apple
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{
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Texture2D tex1;
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Texture2D tex2;
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float3 aa;
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};
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float4 main() : sv_target
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{
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struct apple a = {tex, tex, 1.0, 2.0, 3.0};
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a.aa += f;
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return a.aa.xyzx;
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}
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[test]
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uniform 0 float 10.0
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draw quad
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probe (0, 0) rgba (11.0, 12.0, 13.0, 11.0)
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[pixel shader fail]
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float4 main(Texture2D tex2) : sv_target
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{
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Texture2D tex1;
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tex2 = tex1;
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return tex2.Load(int3(0, 0, 0));
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}
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