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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 vertexid-drawarrays.c
*
* Test that gl_VertexID has the correct values.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_width = 70;
config.window_height = 30;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_ALPHA | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
static const char vs_text[] =
"#version 130\n"
"\n"
"/* This is floating point so we can use immediate mode */\n"
"out vec4 color;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = gl_Vertex;\n"
" color = vec4(equal(vec4(gl_VertexID), gl_Color));\n"
"}\n";
static const char fs_text[] =
"#version 130\n"
"\n"
"in vec4 color;\n"
"\n"
"void main()\n"
"{\n"
" gl_FragColor = color;\n"
"}\n";
void
piglit_init(int argc, char **argv)
{
GLuint vs, fs, prog;
piglit_require_GLSL_version(130);
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_text);
prog = piglit_link_simple_program(vs, fs);
if (!vs || !fs || !prog)
piglit_report_result(PIGLIT_FAIL);
glUseProgram(prog);
}
enum piglit_result
piglit_display()
{
bool pass;
float vertex_array[] = {
-1, -1,
1, -1,
1, 1,
-1, 1,
};
float color_array[] = {
0.5, 0.0, 0.5, 0.5,
0.5, 1.0, 0.5, 0.5,
0.5, 2.0, 0.5, 0.5,
0.5, 3.0, 0.5, 0.5,
};
float green[] = {0, 1, 0, 0};
glVertexPointer(2, GL_FLOAT, 0, vertex_array);
glEnableClientState(GL_VERTEX_ARRAY);
glColorPointer(4, GL_FLOAT, 0, color_array);
glEnableClientState(GL_COLOR_ARRAY);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
green);
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
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