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/*
* Copyright © 2010 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:
* Eric Anholt <eric@anholt.net>
*
*/
/** @file glsl-vs-normalscale.c
*
* Tests that gl_NormalScale provides a correct value.
*/
#include "piglit-util.h"
int piglit_width = 100, piglit_height = 100;
int piglit_window_mode = GLUT_RGB | GLUT_ALPHA | GLUT_DOUBLE;
static GLint prog;
enum piglit_result
piglit_display(void)
{
GLboolean pass = GL_TRUE;
static const float gray[] = {0.5, 0.5, 0.5, 0.5};
/* Go ahead and draw with one matrix (gl_NormalScale = 1.0)
* first. Don't bother testing this one.
*/
piglit_ortho_projection(1, 1, GL_FALSE);
piglit_draw_rect(0, 0, 1, 1);
/* Tweak the modelview and draw over it with another matrix. */
glMatrixMode(GL_MODELVIEW);
glScalef(1.0, 1.0, 2.0);
piglit_draw_rect(0, 0, 1, 1);
pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
gray);
glutSwapBuffers();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void piglit_init(int argc, char **argv)
{
GLint vs, fs;
int loc;
if (piglit_get_gl_version() < 20) {
printf("Requires OpenGL 2.0\n");
piglit_report_result(PIGLIT_SKIP);
}
vs = piglit_compile_shader(GL_VERTEX_SHADER,
"shaders/glsl-vs-normalscale.vert");
fs = piglit_compile_shader(GL_FRAGMENT_SHADER,
"shaders/glsl-color.frag");
prog = piglit_link_simple_program(vs, fs);
glUseProgram(prog);
loc = glGetUniformLocation(prog, "sampler");
glUniform1i(loc, 1);
}
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