st/omx: initial OpenMAX support v3

Featuring a full grown MPEG2 and H264 decoder and a couple of hundred bugs.

v2 (Leo): fix an error for pic_order_cnt_type 1
v3 (Leo): implement support for field decoding

Signed-off-by: Christian König <[email protected]>
Signed-off-by: Leo Liu <[email protected]>

1 files changed, 100 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/omx/entrypoint.c b/src/gallium/state_trackers/omx/entrypoint.c
new file mode 100644
index 00000000000..bc8664b96a3
--- /dev/null
+++ b/src/gallium/state_trackers/omx/entrypoint.c
@@ -0,0 +1,100 @@
+/**************************************************************************
+ *
+ * Copyright 2013 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/*
+ * Authors:
+ *      Christian König <[email protected]>
+ *
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include <X11/Xlib.h>
+
+#include "os/os_thread.h"
+#include "util/u_memory.h"
+
+#include "entrypoint.h"
+#include "vid_dec.h"
+
+pipe_static_mutex(omx_lock);
+static Display *omx_display = NULL;
+static struct vl_screen *omx_screen = NULL;
+static unsigned omx_usecount = 0;
+
+int omx_component_library_Setup(stLoaderComponentType **stComponents)
+{
+   OMX_ERRORTYPE r;
+
+   if (stComponents == NULL)
+      return 1;
+
+   r = vid_dec_LoaderComponent(stComponents[0]);
+   if (r != OMX_ErrorNone)
+      return r;
+
+   return 1;
+}
+
+struct vl_screen *omx_get_screen(void)
+{
+   pipe_mutex_lock(omx_lock);
+
+   if (!omx_display) {
+      omx_display = XOpenDisplay(NULL);
+      if (!omx_display) {
+         pipe_mutex_unlock(omx_lock);
+         return NULL;
+      }
+   }
+
+   if (!omx_screen) {
+      omx_screen = vl_screen_create(omx_display, 0);
+      if (!omx_screen) {
+         pipe_mutex_unlock(omx_lock);
+         return NULL;
+      }
+   }
+
+   ++omx_usecount;
+
+   pipe_mutex_unlock(omx_lock);
+   return omx_screen;
+}
+
+void omx_put_screen(void)
+{
+   pipe_mutex_lock(omx_lock);
+   if ((--omx_usecount) == 0) {
+      vl_screen_destroy(omx_screen);
+      XCloseDisplay(omx_display);
+      omx_screen = NULL;
+      omx_display = NULL;
+   }
+   pipe_mutex_unlock(omx_lock);
+}