static bool
test_mipmap_tree(void)
{
bool pass = true;
int layer, level;
for (level = 0; level < TEX_LEVELS; level++) {
int size = TEX_SIZE >> level;
float *observed;
/* With a compressed texture, skip checking the second and
* third last levels, because one DXTC block cannot contain
* more than 2 colors.
*
* However, always test the last level, which should only
* contain one color, which is the average of all 4.
*/
if (format == GL_COMPRESSED_RGB_S3TC_DXT1_EXT &&
level >= TEX_LEVELS-3 && level <= TEX_LEVELS-2)
continue;
if (test_array) {
observed = malloc(num_layers * size * size * 4 * sizeof(float));
glGetTexImage(target, level, GL_RGBA, GL_FLOAT, observed);
for (layer = 0; layer < num_layers; layer++) {
pass = pass && test_face(layer % 6, level, layer / 6,
observed + layer * size * size * 4);
}
free(observed);
}
else {
for (layer = 0; layer < num_layers; layer++) {
observed = malloc(size * size * 4 * sizeof(float));
glGetTexImage(GL_TEXTURE_CUBE_MAP_POSITIVE_X + layer,
level, GL_RGBA, GL_FLOAT, observed);
pass = pass && test_face(layer, level, 0, observed);
free(observed);
}
}
}
return pass;
}
enum piglit_result
piglit_display(void)
{
GLuint i;
bool pass = true;
for (i = 0; i < 6; i++) {
pass = test_face(i) && pass;
}
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}