int main(int argc, char* argv[])
{
IupOpen(&argc, &argv);
IupControlsOpen();
MatrixTest();
IupMainLoop();
IupClose();
return EXIT_SUCCESS;
}
void
TexEnvTest::runOne(BasicResult& r, Window& w) {
(void) w;
#define COLORS (3*3*3*3)
GLfloat colors[COLORS][4];
// colors[] is an array of all possible RGBA colors with component
// values of 0, 0.5, and 1.0
for (int i = 0; i < COLORS; i++) {
GLint r = i % 3;
GLint g = (i / 3) % 3;
GLint b = (i / 9) % 3;
GLint a = (i / 27) % 3;
colors[i][0] = (float) r / 2.0;
colors[i][1] = (float) g / 2.0;
colors[i][2] = (float) b / 2.0;
colors[i][3] = (float) a / 2.0;
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glEnable(GL_TEXTURE_2D);
#if BLEND_WITH_BACKGROUND
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
#endif
glClearColor(BgColor[0], BgColor[1], BgColor[2], BgColor[3]);
glShadeModel(GL_FLAT);
glViewport(0, 0, 256, 256);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, 256, 0, 256, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0.375, 0.375, 0.0);
int numModes;
if (GLUtils::haveExtensions("GL_EXT_texture_env_add") ||
GLUtils::haveExtensions("GL_ARB_texture_env_add"))
numModes = 5;
else
numModes = 4;
r.pass = true;
for (int fmt = 0; fmt < 6; fmt++) {
const GLenum format = FormatEnums[fmt];
const char *formatName = FormatNames[fmt];
for (int mode = 0; mode < numModes; mode++) {
const GLenum envMode = EnvModeEnums[mode];
const char *envName = EnvModeNames[mode];
//printf("format %s mode %s\n", FormatNames[fmt],
// EnvModeNames[mode]);
if (envMode == GL_BLEND && format != GL_ALPHA) {
// also vary texenv color, every 5th is OK.
for (int eCol = 0; eCol < COLORS; eCol += 5) {
const GLfloat *envColor = colors[eCol];
if (!MatrixTest(envMode, format,
envName, formatName,
COLORS, colors, envColor, w)) {
r.pass = false;
break;
}
}
}
else {
// texenv color not significant
if (!MatrixTest(envMode, format,
envName, formatName,
COLORS, colors, colors[0], w)) {
r.pass = false;
}
}
}
}
} // TexEnvTest::runOne