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Add more constant folding cases for min, max, step, smoothstep, mix, clamp, atan, and pow.

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22903 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich
2013-08-30 00:45:57 +00:00
parent b603f918a4
commit 8700e9e6d1
3 changed files with 256 additions and 111 deletions
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21
Test/constFold.frag
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@@ -21,7 +21,9 @@ out vec4 out7;
out vec4 out8;
out vec4 out9;
out vec4 out10;
out vec4 out11;
out vec4 out11;
out ivec2 out12;
out uvec3 out13;
void main()
{
@@ -48,4 +50,21 @@ void main()
out9 = vec4(roundEven(7.5), roundEven(-4.5), fract(2.345), fract(-2.6)); // 8, -4, .345, 0.4
out10 = vec4(isinf(4.0/0.0), isinf(-3.0/0.0), isinf(0.0/0.0), isinf(-93048593405938405938405.0)); // true, true, false, false -> 1.0, 1.0, 0.0, 0.0
out11 = vec4(isnan(4.0/0.0), isnan(-3.0/0.0), isnan(0.0/0.0), isnan(-93048593405938405938405.0)); // false, false, true, false -> 0.0, 1.0, 0.0, 0.0
out11 = vec4(tan(0.8), atan(1.029), atan(8.0, 10.0), atan(10000.0)); // 1.029, 0.8, 0.6747, 1.57
out11 = vec4(asin(0.0), asin(0.5), acos(0.0), acos(0.5)); // 0.0, .523599, 1.57, 1.047
const vec4 v1 = vec4(1.0, 0.0, 0.5, -0.2);
const vec4 v2 = vec4(0.2, 0.3, 0.4, 0.5);
out11 = atan(v1, v2); // 1.373401, 0.0, 0.896055, -0.380506
const ivec2 v3 = ivec2(15.0, 17.0);
const ivec2 v4 = ivec2(17.0, 15.0);
out12 = min(v3, 16); // 15, 16
out12 = max(v3, v4); // 17, 17
out2 = pow(vec2(v3), vec2(2.5, 3.0)); // 871.4, 4913
out13 = clamp(uvec3(1, 20, 50), 10u, 30u); // 10, 20, 30
out2 = mix(vec2(3.0, 4.0), vec2(5.0, 6.0), bvec2(false, true)); // 3.0, 6.0
out2 = mix(vec2(3.0, 4.0), vec2(5.0, 6.0), 0.25); // 3.5, 4.5
out2 = step(0.5, vec2(0.2, 0.6)); // 0.0, 1.0
out11 = smoothstep(50.0, 60.0, vec4(40.0, 51.0, 55.0, 70.0)); // 0.0, 0.028, 0.5, 1.0
}