tests/general/vbo-bufferdata.c

   1 /*
   2  * Copyright © 2009 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Ben Holmes <shranzel@hotmail.com>
  25  *    Marek Olšák <maraeo@gmail.com>
  26  */
  27
  28 #include "piglit-util-gl.h"
  29
  30 PIGLIT_GL_TEST_CONFIG_BEGIN
  31
  32         config.supports_gl_compat_version = 10;
  33
  34         config.window_width = 400;
  35         config.window_height = 300;
  36         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  37         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  38
  39 PIGLIT_GL_TEST_CONFIG_END
  40
  41 static GLuint vbo;
  42
  43 void
  44 piglit_init(int argc, char **argv)
  45 {
  46         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
  47
  48         piglit_require_extension("GL_ARB_vertex_buffer_object");
  49
  50         glGenBuffersARB(1, &vbo);
  51         glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
  52         glBufferDataARB(GL_ARRAY_BUFFER_ARB, 12 * sizeof(GLfloat),
  53                         NULL, GL_DYNAMIC_DRAW);
  54 }
  55
  56 enum piglit_result
  57 piglit_display(void)
  58 {
  59         GLfloat white[4] = {1.0, 1.0, 1.0, 0.0};
  60         GLboolean pass = GL_TRUE;
  61         GLfloat varray1[12] = {175, 125, 0,
  62                                175, 175, 0,
  63                                125, 125, 0,
  64                                125, 175, 0};
  65         GLfloat varray2[12] = {275, 125, 0,
  66                                275, 175, 0,
  67                                225, 125, 0,
  68                                225, 175, 0};
  69         GLenum err;
  70
  71         glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
  72
  73         glEnableClientState(GL_VERTEX_ARRAY);
  74         glVertexPointer(3, GL_FLOAT, 0, 0);
  75
  76         glBufferDataARB(GL_ARRAY_BUFFER_ARB, 12 * sizeof(GLfloat),
  77                         varray1, GL_DYNAMIC_DRAW);
  78
  79         glClear(GL_COLOR_BUFFER_BIT);
  80         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
  81
  82         glBufferDataARB(GL_ARRAY_BUFFER_ARB, 12 * sizeof(GLfloat),
  83                         varray2, GL_DYNAMIC_DRAW);
  84
  85         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
  86
  87         if ((err = glGetError()) != 0) {
  88                 printf("gl error: 0x%08x\n", err);
  89                 pass = GL_FALSE;
  90         }
  91
  92         pass = pass && piglit_probe_pixel_rgb(250, 150, white);
  93         pass = pass && piglit_probe_pixel_rgb(150, 150, white);
  94
  95         piglit_present_results();
  96
  97         glDisableClientState(GL_VERTEX_ARRAY);
  98
  99         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 100 }