static void Key(unsigned char key, int x, int y)
{
switch (key) {
case 27:
exit(1);
case '1':
mode1 = !mode1;
break;
case '2':
mode2 = !mode2;
break;
case '3':
RotateColorMask();
break;
case 'p':
if (provoking == GL_FIRST_VERTEX_CONVENTION_EXT) {
printf("provoke last\n");
provoking = GL_LAST_VERTEX_CONVENTION_EXT;
}
else {
printf("provoke first\n");
provoking = GL_FIRST_VERTEX_CONVENTION_EXT;
}
glProvokingVertexEXT(provoking);
break;
default:
return;
}
glutPostRedisplay();
}
enum piglit_result
piglit_display(void)
{
static const float red[3] = {1, 0, 0},
green[3] = {0, 1, 0},
blue[3] = {0, 0, 1},
yellow[3] = {1, 1, 0},
cyan[3] = {0, 1, 1};
bool pass = true;
glClear(GL_COLOR_BUFFER_BIT);
glProvokingVertexEXT(GL_LAST_VERTEX_CONVENTION_EXT);
const int y1 = piglit_height / 3;
glBegin(GL_TRIANGLE_STRIP);
glColor3fv(cyan);
glVertex3i(piglit_width + 1, y1, 0);
glColor3fv(yellow);
glVertex3i(piglit_width + 2, y1, 0);
glColor3fv(blue);
glVertex3i(piglit_width + 3, y1, 0);
glColor3fv(green);
glVertex3i(piglit_width / 2, y1 * 2, 0);
glColor3fv(red);
glVertex3i(piglit_width - 1, y1 * 2, 0);
glEnd();
pass = pass && piglit_probe_pixel_rgb(piglit_width - 2, y1 * 3 / 2, red);
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
