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/*
* Copyright © 2011 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.
*/
/**
* \file glsl-fs-flat-color.c
* Test that gl_Color works correctly with GL_SHADE_MODEL of GL_FLAT
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.window_width = 30;
config.window_height = 30;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_ALPHA | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
GLuint prog;
GLvoid
draw_rect(float x, float y, float w, float h, float *color)
{
float verts[4][4];
float colors[16];
verts[0][0] = x;
verts[0][1] = y;
verts[0][2] = 0.0;
verts[0][3] = 1.0;
verts[1][0] = x + w;
verts[1][1] = y;
verts[1][2] = 0.0;
verts[1][3] = 1.0;
verts[2][0] = x + w;
verts[2][1] = y + h;
verts[2][2] = 0.0;
verts[2][3] = 1.0;
verts[3][0] = x;
verts[3][1] = y + h;
verts[3][2] = 0.0;
verts[3][3] = 1.0;
/* Fill in just the first color. We're flat shading, after all. */
memset(&colors, 0, sizeof(colors));
memcpy(colors, color, 4 * sizeof(float));
glVertexPointer(4, GL_FLOAT, 0, verts);
glEnableClientState(GL_VERTEX_ARRAY);
glColorPointer(4, GL_FLOAT, 0, colors);
glEnableClientState(GL_COLOR_ARRAY);
glDrawArrays(GL_POLYGON, 0, 4);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
}
enum piglit_result
piglit_display(void)
{
float green[4] = { 0.0, 1.0, 0.0, 1.0 };
enum piglit_result result = PIGLIT_PASS;
glShadeModel(GL_FLAT);
draw_rect(-1, -1, 2, 2, green);
if (!piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height, green))
result = PIGLIT_FAIL;
if (!piglit_automatic)
piglit_present_results();
return result;
}
void
piglit_init(int argc, char **argv)
{
GLuint vs, fs;
piglit_require_gl_version(20);
vs = piglit_compile_shader(GL_VERTEX_SHADER,
"shaders/glsl-color-mvp.vert");
fs = piglit_compile_shader(GL_FRAGMENT_SHADER,
"shaders/glsl-color.frag");
prog = piglit_link_simple_program(vs, fs);
glDeleteShader(vs);
glDeleteShader(fs);
/* Don't try to render if the program failed to link, and linking
* had better succeed!
*/
if (!piglit_link_check_status(prog))
piglit_report_result(PIGLIT_FAIL);
glUseProgram(prog);
}
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