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/*
* Copyright © 2009 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Ben Holmes <shranzel@hotmail.com>
*/
/*
* draws two triangles using different colors for each vert(1st-red, 2nd-green,
* 3rd-blue). first tri drawn using glProvokingVertexEXT set to
* GL_FIRST_VERTEX_CONVENTION_EXT.
* Second tri using GL_LAST_VERTEX_CONVENTION_EXT.
*/
#include "piglit-util.h"
PIGLIT_GL_TEST_MAIN(
400 /*window_width*/,
300 /*window_height*/,
GLUT_RGB | GLUT_DOUBLE)
void
piglit_init(int argc, char **argv)
{
piglit_require_extension("GL_EXT_provoking_vertex");
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
glShadeModel(GL_FLAT);
glClearColor(0.2, 0.2, 0.2, 1.0);
}
enum piglit_result
piglit_display(void)
{
float red[3] = {1.0, 0.0, 0.0};
float blue[3] = {0.0, 0.0, 1.0};
GLboolean pass = GL_TRUE;
glClear(GL_COLOR_BUFFER_BIT);
glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT);
glBegin(GL_TRIANGLES);
glColor3f(1.0, 0.0, 0.0);
glVertex3i(125, 125, 0);
glColor3f(0.0, 1.0, 0.0);
glVertex3i(175, 125, 0);
glColor3f(0.0, 0.0, 1.0);
glVertex3i(150, 150, 0);
glEnd();
glProvokingVertexEXT(GL_LAST_VERTEX_CONVENTION_EXT);
glBegin(GL_TRIANGLES);
glColor3f(1.0, 0.0, 0.0);
glVertex3i(200, 125, 0);
glColor3f(0.0, 1.0, 0.0);
glVertex3i(250, 125, 0);
glColor3f(0.0, 0.0, 1.0);
glVertex3i(225, 150, 0);
glEnd();
pass = pass && piglit_probe_pixel_rgb(150, 130, red);
pass = pass && piglit_probe_pixel_rgb(225, 130, blue);
glFinish();
glutSwapBuffers();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
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