tests/glx/glx-multithread.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 DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Eric Anholt <eric@anholt.net>
  25  *
  26  */
  27
  28 /** @file glx-multithread.c
  29  *
  30  * Test that rendering two plain colored rectangles in two different threads
  31  * to the same GLX window works correctly.
  32  */
  33
  34 #include "piglit-util.h"
  35 #include "piglit-glx-util.h"
  36 #include "pthread.h"
  37
  38 int piglit_width = 50, piglit_height = 50;
  39 static Display *dpy;
  40 static Window win;
  41 static pthread_mutex_t mutex;
  42 static XVisualInfo *visinfo;
  43
  44 static void *
  45 thread_func(void *arg)
  46 {
  47         GLXContext ctx;
  48         int *x = arg;
  49         Bool ret;
  50
  51         pthread_mutex_lock(&mutex);
  52
  53         ctx = piglit_get_glx_context(dpy, visinfo);
  54         ret = glXMakeCurrent(dpy, win, ctx);
  55         assert(ret);
  56
  57         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
  58         glColor4f(0.0, 1.0, 0.0, 0.0);
  59         piglit_draw_rect(*x, 10, 10, 10);
  60
  61         glFlush();
  62         glXDestroyContext(dpy, ctx);
  63
  64         pthread_mutex_unlock(&mutex);
  65
  66         return NULL;
  67 }
  68
  69 enum piglit_result
  70 draw(Display *dpy)
  71 {
  72         GLboolean pass = GL_TRUE;
  73         float green[] = {0.0, 1.0, 0.0, 0.0};
  74         pthread_t thread1, thread2;
  75         void *retval;
  76         int ret;
  77         int x1 = 10, x2 = 30;
  78         GLXContext ctx;
  79
  80         ctx = piglit_get_glx_context(dpy, visinfo);
  81         glXMakeCurrent(dpy, win, ctx);
  82
  83         /* Clear background to gray */
  84         glClearColor(0.5, 0.5, 0.5, 1.0);
  85         glClear(GL_COLOR_BUFFER_BIT);
  86         glFlush();
  87
  88         pthread_mutex_init(&mutex, NULL);
  89         /* Now, spawn some threads that do some drawing, both with this
  90          * context
  91          */
  92         pthread_create(&thread1, NULL, thread_func, &x1);
  93         pthread_create(&thread2, NULL, thread_func, &x2);
  94
  95         ret = pthread_join(thread1, &retval);
  96         assert(ret == 0);
  97         ret = pthread_join(thread2, &retval);
  98         assert(ret == 0);
  99
 100         pthread_mutex_destroy(&mutex);
 101
 102         pass &= piglit_probe_pixel_rgb(15, 15, green);
 103         pass &= piglit_probe_pixel_rgb(35, 15, green);
 104
 105         glXSwapBuffers(dpy, win);
 106
 107         return pass ? PIGLIT_SUCCESS : PIGLIT_FAILURE;
 108 }
 109
 110 int
 111 main(int argc, char **argv)
 112 {
 113         int i;
 114
 115         for(i = 1; i < argc; ++i) {
 116                 if (!strcmp(argv[i], "-auto"))
 117                         piglit_automatic = 1;
 118                 else
 119                         fprintf(stderr, "Unknown option: %s\n", argv[i]);
 120         }
 121
 122         dpy = XOpenDisplay(NULL);
 123         if (dpy == NULL) {
 124                 fprintf(stderr, "couldn't open display\n");
 125                 piglit_report_result(PIGLIT_FAILURE);
 126         }
 127         visinfo = piglit_get_glx_visual(dpy);
 128         win = piglit_get_glx_window(dpy, visinfo);
 129
 130         XMapWindow(dpy, win);
 131
 132         piglit_glx_event_loop(dpy, draw);
 133
 134         return 0;
 135 }