// Check if the matrix 'inverse' operation on 3x3 matrix is constant folded.
TEST_F(ConstantFoldingTest, Fold3x3MatrixInverse)
{
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"in float i;\n"
"out vec3 my_Vec;\n"
"void main() {\n"
" const mat3 m3 = inverse(mat3(11.0f, 13.0f, 19.0f,\n"
" 23.0f, 29.0f, 31.0f,\n"
" 37.0f, 41.0f, 43.0f));\n"
" mat3 m = m3 * mat3(i);\n"
" my_Vec = m3[0];\n"
"}\n";
compile(shaderString);
float inputElements[] =
{
11.0f, 13.0f, 19.0f,
23.0f, 29.0f, 31.0f,
37.0f, 41.0f, 43.0f
};
std::vector<float> input(inputElements, inputElements + 9);
ASSERT_FALSE(constantVectorFoundInAST(input));
float outputElements[] =
{
3.0f / 85.0f, -11.0f / 34.0f, 37.0f / 170.0f,
-79.0f / 340.0f, 23.0f / 68.0f, -12.0f / 85.0f,
13.0f / 68.0f, -3.0f / 68.0f, -1.0f / 34.0f
};
std::vector<float> result(outputElements, outputElements + 9);
const float floatFaultTolerance = 0.000001f;
ASSERT_TRUE(constantVectorNearFoundInAST(result, floatFaultTolerance));
}
// Check if the matrix 'inverse' operation on 4x4 matrix is constant folded.
TEST_F(ConstantFoldingTest, Fold4x4MatrixInverse)
{
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"out mat4 my_Matrix;"
"void main() {\n"
" const mat4 m4 = inverse(mat4(29.0f, 31.0f, 37.0f, 41.0f,\n"
" 43.0f, 47.0f, 53.0f, 59.0f,\n"
" 61.0f, 67.0f, 71.0f, 73.0f,\n"
" 79.0f, 83.0f, 89.0f, 97.0f));\n"
" my_Matrix = m4;\n"
"}\n";
compile(shaderString);
float inputElements[] =
{
29.0f, 31.0f, 37.0f, 41.0f,
43.0f, 47.0f, 53.0f, 59.0f,
61.0f, 67.0f, 71.0f, 73.0f,
79.0f, 83.0f, 89.0f, 97.0f
};
std::vector<float> input(inputElements, inputElements + 16);
ASSERT_FALSE(constantVectorFoundInAST(input));
float outputElements[] =
{
43.0f / 126.0f, -11.0f / 21.0f, -2.0f / 21.0f, 31.0f / 126.0f,
-5.0f / 7.0f, 9.0f / 14.0f, 1.0f / 14.0f, -1.0f / 7.0f,
85.0f / 126.0f, -11.0f / 21.0f, 43.0f / 210.0f, -38.0f / 315.0f,
-2.0f / 7.0f, 5.0f / 14.0f, -6.0f / 35.0f, 3.0f / 70.0f
};
std::vector<float> result(outputElements, outputElements + 16);
const float floatFaultTolerance = 0.00001f;
ASSERT_TRUE(constantVectorNearFoundInAST(result, floatFaultTolerance));
}
