tests/spec/arb_sync/repeat-wait.c

   1 /* Copyright © 2012 Intel Corporation
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a
   4  * copy of this software and associated documentation files (the "Software"),
   5  * to deal in the Software without restriction, including without limitation
   6  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   7  * and/or sell copies of the Software, and to permit persons to whom the
   8  * Software is furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice (including the next
  11  * paragraph) shall be included in all copies or substantial portions of the
  12  * Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  20  * IN THE SOFTWARE.
  21  */
  22
  23 /** @file repeat-wait.c
  24  *
  25  * From the GL_ARB_sync spec:
  26  *
  27  *     "If <sync> is signaled at the time ClientWaitSync is called
  28  *      then ClientWaitSync returns immediately. If <sync> is
  29  *      unsignaled at the time ClientWaitSync is called then
  30  *      ClientWaitSync will block and will wait up to <timeout>
  31  *      nanoseconds for <sync> to become signaled.
  32  *
  33  *      ...
  34  *
  35  *      ALREADY_SIGNALED will always be returned if <sync> was
  36  *      signaled, even if the value of <timeout> is zero."
  37  *
  38  * There was concern that the implementation of the kernel API on i965
  39  * might violate this for the specific case of back-to-back
  40  * ClientWaitSyncs, but Mesa core doesn't end up calling into the
  41  * driver on a later ClientWaitSync.
  42  */
  43
  44 #include "piglit-util-gl.h"
  45
  46 PIGLIT_GL_TEST_CONFIG_BEGIN
  47
  48         config.supports_gl_compat_version = 10;
  49
  50         config.window_width = 10;
  51         config.window_height = 10;
  52         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  53         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  54
  55 PIGLIT_GL_TEST_CONFIG_END
  56
  57 #define ONE_SECOND 1000000000
  58
  59 enum piglit_result
  60 piglit_display(void)
  61 {
  62         /* UNREACHED */
  63         return PIGLIT_FAIL;
  64 }
  65
  66 void
  67 piglit_init(int argc, char **argv)
  68 {
  69         GLsync sync;
  70         GLenum ret1, ret2;
  71
  72         piglit_require_extension("GL_ARB_sync");
  73
  74         glClear(GL_COLOR_BUFFER_BIT);
  75
  76         sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
  77
  78         ret1 = glClientWaitSync(sync, GL_SYNC_FLUSH_COMMANDS_BIT, ONE_SECOND);
  79         ret2 = glClientWaitSync(sync, 0, ONE_SECOND);
  80
  81         if (ret1 == GL_TIMEOUT_EXPIRED) {
  82                 printf("timeout expired on the first wait\n");
  83                 piglit_report_result(PIGLIT_SKIP);
  84         }
  85
  86         if (ret2 != GL_ALREADY_SIGNALED) {
  87                 fprintf(stderr,
  88                         "Expected GL_ALREADY_SIGNALED on second wait, got %s",
  89                         piglit_get_gl_enum_name(ret2));
  90                 piglit_report_result(PIGLIT_FAIL);
  91         }
  92
  93         piglit_report_result(PIGLIT_PASS);
  94 }