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Add texture gather functions (and extension check) for GLSL 400 and GL_ARB_texture_gather.

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23631 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2013-10-21 19:25:59 +00:00
parent a65dc63d46
commit 21a8770f92
11 changed files with 301 additions and 36 deletions
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13
Test/400.frag
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@ -1,13 +1,24 @@
#version 330 core
#version 400 core
in vec2 c2D;
flat in int i;
out vec4 outp;
uniform sampler2D arrayedSampler[5];
uniform usampler2DRect samp2dr;
uniform isampler2DArray isamp2DA;
void main()
{
vec4 v;
v = texture(arrayedSampler[i], c2D);
outp.x = gl_ClipDistance[1];
ivec2 offsets[4];
uvec4 uv4 = textureGatherOffsets(samp2dr, c2D, offsets, 2);
vec4 v4 = textureGather(arrayedSampler[0], c2D);
ivec4 iv4 = textureGatherOffset(isamp2DA, vec3(0.1), ivec2(1), 3);
iv4 = textureGatherOffset(isamp2DA, vec3(0.1), ivec2(1), i); // ERROR, last argument not const
iv4 = textureGatherOffset(isamp2DA, vec3(0.1), ivec2(1), 4); // ERROR, last argument out of range
iv4 = textureGatherOffset(isamp2DA, vec3(0.1), ivec2(1), 1+2);
iv4 = textureGatherOffset(isamp2DA, vec3(0.1), ivec2(i));
}