mewin/glslang
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

SPV: RelaxedPrecision: use the result precision for texture sampling.

Browse Source 
Fix #2298.

The AST has two precisions, an operation precision and a result precision.
Actual use of GLSL with mediump samplers wants the result precision, so
pick that up instead of the operation precision.
This commit is contained in:
John Kessenich
2020-06-30 07:52:05 -06:00
parent 90f1d6ab58
commit 12c155f303
5 changed files with 147 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
Test/spv.precisionTexture.frag Normal file
View File

@@ -0,0 +1,24 @@
#version 310 es
precision mediump float;
precision mediump int;
layout(binding = 0) uniform mediump sampler2D texM;
layout(binding = 1) uniform highp sampler2D texH;
layout(binding = 0, rgba32f) uniform readonly mediump image2D imageM;
layout(binding = 1, rgba32f) uniform readonly highp image2D imageH;
layout(location = 0) in highp vec4 vertex;
layout(location = 1) flat in highp ivec2 coord;
layout(location = 0) out vec4 fragColor;
void main()
{
vec4 v;
v = texture(texM, vertex.xy);
v = texture(texH, vertex.xy);
v = textureLod(texM, vertex.xy, vertex.z);
v = textureLod(texH, vertex.xy, vertex.z);
v = textureProj(texM, vertex.xyz);
v = textureProj(texH, vertex.xyz);
v = imageLoad(imageM, coord);
v = imageLoad(imageH, coord);
}