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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2013 Advanced Micro Devices, Inc.
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21.  * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. /*
  29.  * Authors:
  30.  *      Christian König <christian.koenig@amd.com>
  31.  *
  32.  */
  33.  
  34. #include <assert.h>
  35. #include <string.h>
  36.  
  37. #include <X11/Xlib.h>
  38.  
  39. #include "os/os_thread.h"
  40. #include "util/u_memory.h"
  41.  
  42. #include "entrypoint.h"
  43. #include "vid_dec.h"
  44. #include "vid_enc.h"
  45.  
  46. pipe_static_mutex(omx_lock);
  47. static Display *omx_display = NULL;
  48. static struct vl_screen *omx_screen = NULL;
  49. static unsigned omx_usecount = 0;
  50.  
  51. int omx_component_library_Setup(stLoaderComponentType **stComponents)
  52. {
  53.    OMX_ERRORTYPE r;
  54.  
  55.    if (stComponents == NULL)
  56.       return 2;
  57.  
  58.    /* component 0 - video decoder */
  59.    r = vid_dec_LoaderComponent(stComponents[0]);
  60.    if (r != OMX_ErrorNone)
  61.       return OMX_ErrorInsufficientResources;
  62.  
  63.    /* component 1 - video encoder */
  64.    r = vid_enc_LoaderComponent(stComponents[1]);
  65.    if (r != OMX_ErrorNone)
  66.       return OMX_ErrorInsufficientResources;
  67.  
  68.    return 2;
  69. }
  70.  
  71. struct vl_screen *omx_get_screen(void)
  72. {
  73.    pipe_mutex_lock(omx_lock);
  74.  
  75.    if (!omx_display) {
  76.       omx_display = XOpenDisplay(NULL);
  77.       if (!omx_display) {
  78.          pipe_mutex_unlock(omx_lock);
  79.          return NULL;
  80.       }
  81.    }
  82.  
  83.    if (!omx_screen) {
  84.       omx_screen = vl_screen_create(omx_display, 0);
  85.       if (!omx_screen) {
  86.          pipe_mutex_unlock(omx_lock);
  87.          return NULL;
  88.       }
  89.    }
  90.  
  91.    ++omx_usecount;
  92.  
  93.    pipe_mutex_unlock(omx_lock);
  94.    return omx_screen;
  95. }
  96.  
  97. void omx_put_screen(void)
  98. {
  99.    pipe_mutex_lock(omx_lock);
  100.    if ((--omx_usecount) == 0) {
  101.       vl_screen_destroy(omx_screen);
  102.       XCloseDisplay(omx_display);
  103.       omx_screen = NULL;
  104.       omx_display = NULL;
  105.    }
  106.    pipe_mutex_unlock(omx_lock);
  107. }
  108.  
  109. OMX_ERRORTYPE omx_workaround_Destructor(OMX_COMPONENTTYPE *comp)
  110. {
  111.    omx_base_component_PrivateType* priv = (omx_base_component_PrivateType*)comp->pComponentPrivate;
  112.  
  113.    priv->state = OMX_StateInvalid;
  114.    tsem_up(priv->messageSem);
  115.  
  116.    /* wait for thread to exit */;
  117.    pthread_join(priv->messageHandlerThread, NULL);
  118.  
  119.    return omx_base_component_Destructor(comp);
  120. }
  121.