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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>
*/
#include "piglit-util.h"
PIGLIT_GL_TEST_MAIN(
400 /*window_width*/,
300 /*window_height*/,
GLUT_RGB | GLUT_DOUBLE)
static GLuint vbo;
void
piglit_init(int argc, char **argv)
{
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
piglit_require_extension("GL_ARB_vertex_buffer_object");
glGenBuffersARB(1, &vbo);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, 12 * sizeof(GLfloat),
NULL, GL_DYNAMIC_DRAW);
}
static void
vbo_write_floats_mapped(const float *varray, size_t count)
{
float *ptr = glMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
if (ptr == NULL)
piglit_report_result(PIGLIT_FAIL);
memcpy(ptr, varray, count * sizeof(GLfloat));
if (!glUnmapBufferARB(GL_ARRAY_BUFFER_ARB))
piglit_report_result(PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
GLfloat white[4] = {1.0, 1.0, 1.0, 0.0};
GLboolean pass = GL_TRUE;
GLfloat varray1[12] = {175, 125, 0,
175, 175, 0,
125, 125, 0,
125, 175, 0};
GLfloat varray2[12] = {275, 125, 0,
275, 175, 0,
225, 125, 0,
225, 175, 0};
GLenum err;
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, 0);
vbo_write_floats_mapped(varray1, 12);
glClear(GL_COLOR_BUFFER_BIT);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, 0, varray2); /* noop */
vbo_write_floats_mapped(varray2, 12);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
if ((err = glGetError()) != 0) {
printf("gl error: 0x%08x\n", err);
pass = GL_FALSE;
}
pass = pass && piglit_probe_pixel_rgb(250, 150, white);
pass = pass && piglit_probe_pixel_rgb(150, 150, white);
glutSwapBuffers();
glDisableClientState(GL_VERTEX_ARRAY);
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
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