tests/general/copypixels-sync.c

   1 /*
   2  * Copyright © 2011 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 DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * @file copypixels-sync.c
  26  *
  27  * Test repeated readback of small glCopyPixels calls.  This stresses
  28  * blit ring IRQ handling on the i965 driver.
  29  */
  30
  31 #include "piglit-util-gl.h"
  32
  33 PIGLIT_GL_TEST_CONFIG_BEGIN
  34
  35         config.supports_gl_compat_version = 10;
  36
  37         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  38
  39 PIGLIT_GL_TEST_CONFIG_END
  40
  41 enum piglit_result
  42 piglit_display(void)
  43 {
  44         int x, y;
  45         float green[4] = {0.0, 1.0, 0.0, 0.0};
  46         bool pass = true;
  47
  48         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
  49
  50         glClearColor(1.0, 0.0, 0.0, 0.0);
  51         glClear(GL_COLOR_BUFFER_BIT);
  52
  53         glColor4fv(green);
  54         piglit_draw_rect(0, 0, 1, 1);
  55
  56         for (y = 0; y < piglit_height; y++) {
  57                 for (x = 0; x < piglit_width; x++) {
  58                         if (x == 0 && y == 0)
  59                                 continue;
  60
  61                         glRasterPos2i(x, y);
  62                         if (x != 0) {
  63                                 glCopyPixels(x - 1, y, 1, 1, GL_COLOR);
  64                         } else {
  65                                 glCopyPixels(piglit_width - 1, y - 1, 1, 1,
  66                                              GL_COLOR);
  67                         }
  68
  69                         pass = pass && piglit_probe_pixel_rgba(x, y, green);
  70                 }
  71         }
  72
  73         piglit_present_results();
  74
  75         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  76 }
  77
  78
  79 void
  80 piglit_init(int argc, char **argv)
  81 {
  82 }