1 files changed, 344 insertions, 0 deletions
diff --git a/gst-libs/gst/gl/dispmanx/gstglwindow_dispmanx_egl.c b/gst-libs/gst/gl/dispmanx/gstglwindow_dispmanx_egl.c
new file mode 100644
index 000000000..a3648e852
--- /dev/null
+++ b/gst-libs/gst/gl/dispmanx/gstglwindow_dispmanx_egl.c
@@ -0,0 +1,344 @@
+/*
+ * GStreamer
+ * Copyright (C) 2013 Julien Isorce <julien.isorce@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#define GLIB_DISABLE_DEPRECATION_WARNINGS
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "../gstgl_fwd.h"
+#include <gst/gl/gstglcontext.h>
+
+#include "gstglwindow_dispmanx_egl.h"
+
+#define GST_CAT_DEFAULT gst_gl_window_debug
+
+#define gst_gl_window_dispmanx_egl_parent_class parent_class
+G_DEFINE_TYPE (GstGLWindowDispmanxEGL, gst_gl_window_dispmanx_egl,
+    GST_GL_TYPE_WINDOW);
+
+static guintptr gst_gl_window_dispmanx_egl_get_window_handle (GstGLWindow *
+    window);
+static void gst_gl_window_dispmanx_egl_set_window_handle (GstGLWindow * window,
+    guintptr handle);
+static void gst_gl_window_dispmanx_egl_draw (GstGLWindow * window, guint width,
+    guint height);
+static void gst_gl_window_dispmanx_egl_run (GstGLWindow * window);
+static void gst_gl_window_dispmanx_egl_quit (GstGLWindow * window);
+static void gst_gl_window_dispmanx_egl_send_message (GstGLWindow * window,
+    GstGLWindowCB callback, gpointer data);
+static void gst_gl_window_dispmanx_egl_close (GstGLWindow * window);
+static gboolean gst_gl_window_dispmanx_egl_open (GstGLWindow * window,
+    GError ** error);
+static guintptr gst_gl_window_dispmanx_egl_get_display (GstGLWindow * window);
+
+
+static void window_resize (GstGLWindowDispmanxEGL * window_egl, guint width,
+    guint height);
+
+static void
+gst_gl_window_dispmanx_egl_class_init (GstGLWindowDispmanxEGLClass * klass)
+{
+  GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
+
+  window_class->get_window_handle =
+      GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_get_window_handle);
+  window_class->set_window_handle =
+      GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_set_window_handle);
+  window_class->draw_unlocked =
+      GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_draw);
+  window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_draw);
+  window_class->run = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_run);
+  window_class->quit = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_quit);
+  window_class->send_message =
+      GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_send_message);
+  window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_close);
+  window_class->open = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_open);
+  window_class->get_display =
+      GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_get_display);
+}
+
+static void
+gst_gl_window_dispmanx_egl_init (GstGLWindowDispmanxEGL * window)
+{
+}
+
+/* Must be called in the gl thread */
+GstGLWindowDispmanxEGL *
+gst_gl_window_dispmanx_egl_new (void)
+{
+  GstGLWindowDispmanxEGL *window;
+
+  GST_DEBUG ("creating Dispmanx EGL window");
+
+  window = g_object_new (GST_GL_TYPE_WINDOW_DISPMANX_EGL, NULL);
+
+  gst_gl_window_set_need_lock (GST_GL_WINDOW (window), FALSE);
+
+  window->egldisplay = EGL_DEFAULT_DISPLAY;
+
+  window->display = 0;
+  window->dp_width = 0;
+  window->dp_height = 0;
+  window->native.element = 0;
+  window->native.width = 0;
+  window->native.height = 0;
+
+  return window;
+}
+
+static void
+gst_gl_window_dispmanx_egl_close (GstGLWindow * window)
+{
+  GstGLWindowDispmanxEGL *window_egl;
+  DISPMANX_UPDATE_HANDLE_T dispman_update;
+
+  window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
+
+  if (window_egl->native.element) {
+    dispman_update = vc_dispmanx_update_start (0);
+    vc_dispmanx_element_remove (dispman_update, window_egl->native.element);
+    vc_dispmanx_update_submit_sync (dispman_update);
+  }
+  vc_dispmanx_display_close (window_egl->display);
+
+  g_main_loop_unref (window_egl->loop);
+  window_egl->loop = NULL;
+  g_main_context_unref (window_egl->main_context);
+  window_egl->main_context = NULL;
+}
+
+static gboolean
+gst_gl_window_dispmanx_egl_open (GstGLWindow * window, GError ** error)
+{
+  GstGLWindowDispmanxEGL *window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
+  gint ret = graphics_get_display_size (0, &window_egl->dp_width,
+      &window_egl->dp_height);
+  if (ret < 0) {
+    GST_ERROR ("Can't open display");
+    return FALSE;
+  }
+  GST_DEBUG ("Got display size: %dx%d\n", window_egl->dp_width,
+      window_egl->dp_height);
+
+  window_egl->native.width = 0;
+  window_egl->native.height = 0;
+  window_egl->display = vc_dispmanx_display_open (0);
+  window_egl->native.element = 0;
+
+  window_egl->main_context = g_main_context_new ();
+  window_egl->loop = g_main_loop_new (window_egl->main_context, FALSE);
+
+  window_resize (window_egl, 16, 16);
+
+  return TRUE;
+}
+
+static void
+gst_gl_window_dispmanx_egl_run (GstGLWindow * window)
+{
+  GstGLWindowDispmanxEGL *window_egl;
+
+  window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
+
+  GST_LOG ("starting main loop");
+  g_main_loop_run (window_egl->loop);
+  GST_LOG ("exiting main loop");
+}
+
+static void
+gst_gl_window_dispmanx_egl_quit (GstGLWindow * window)
+{
+  GstGLWindowDispmanxEGL *window_egl;
+
+  window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
+
+  GST_LOG ("sending quit");
+
+  g_main_loop_quit (window_egl->loop);
+
+  GST_LOG ("quit sent");
+}
+
+typedef struct _GstGLMessage
+{
+  GMutex lock;
+  GCond cond;
+  gboolean fired;
+
+  GstGLWindowCB callback;
+  gpointer data;
+} GstGLMessage;
+
+static gboolean
+_run_message (GstGLMessage * message)
+{
+  g_mutex_lock (&message->lock);
+
+  if (message->callback)
+    message->callback (message->data);
+
+  message->fired = TRUE;
+  g_cond_signal (&message->cond);
+  g_mutex_unlock (&message->lock);
+
+  return FALSE;
+}
+
+static void
+gst_gl_window_dispmanx_egl_send_message (GstGLWindow * window,
+    GstGLWindowCB callback, gpointer data)
+{
+  GstGLWindowDispmanxEGL *window_egl;
+  GstGLMessage message;
+
+  window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
+  message.callback = callback;
+  message.data = data;
+  message.fired = FALSE;
+  g_mutex_init (&message.lock);
+  g_cond_init (&message.cond);
+
+  g_main_context_invoke (window_egl->main_context, (GSourceFunc) _run_message,
+      &message);
+
+  g_mutex_lock (&message.lock);
+
+  while (!message.fired)
+    g_cond_wait (&message.cond, &message.lock);
+  g_mutex_unlock (&message.lock);
+}
+
+static guintptr
+gst_gl_window_dispmanx_egl_get_window_handle (GstGLWindow * window)
+{
+  return (guintptr) & GST_GL_WINDOW_DISPMANX_EGL (window)->native;
+}
+
+static void
+gst_gl_window_dispmanx_egl_set_window_handle (GstGLWindow * window,
+    guintptr handle)
+{
+}
+
+static void
+window_resize (GstGLWindowDispmanxEGL * window_egl, guint width, guint height)
+{
+  GST_DEBUG ("resizing window from %ux%u to %ux%u",
+      window_egl->native.width, window_egl->native.height, width, height);
+
+  if (window_egl->display) {
+    VC_RECT_T dst_rect;
+    VC_RECT_T src_rect;
+    GstVideoRectangle src, dst, res;
+    DISPMANX_UPDATE_HANDLE_T dispman_update;
+
+    /* Center width*height frame inside dp_width*dp_height */
+    src.w = width;
+    src.h = height;
+    src.x = src.y = 0;
+    dst.w = window_egl->dp_width;
+    dst.h = window_egl->dp_height;
+    dst.x = dst.y = 0;
+    gst_video_sink_center_rect (src, dst, &res, TRUE);
+
+    dst_rect.x = res.x;
+    dst_rect.y = res.y;
+    dst_rect.width = res.w;
+    dst_rect.height = res.h;
+
+    src_rect.x = 0;
+    src_rect.y = 0;
+    src_rect.width = width << 16;
+    src_rect.height = height << 16;
+
+    dispman_update = vc_dispmanx_update_start (0);
+
+    if (window_egl->native.element) {
+      vc_dispmanx_element_remove (dispman_update, window_egl->native.element);
+    }
+
+    window_egl->native.element = vc_dispmanx_element_add (dispman_update,
+        window_egl->display, 0, &dst_rect, 0, &src_rect,
+        DISPMANX_PROTECTION_NONE, 0, 0, 0);
+
+    vc_dispmanx_update_submit_sync (dispman_update);
+
+    if (GST_GL_WINDOW (window_egl)->resize)
+      GST_GL_WINDOW (window_egl)->
+          resize (GST_GL_WINDOW (window_egl)->resize_data, width, height);
+  }
+
+  window_egl->native.width = width;
+  window_egl->native.height = height;
+}
+
+struct draw
+{
+  GstGLWindowDispmanxEGL *window;
+  guint width, height;
+};
+
+static void
+draw_cb (gpointer data)
+{
+  struct draw *draw_data = data;
+  GstGLWindowDispmanxEGL *window_egl = draw_data->window;
+  GstGLWindow *window = GST_GL_WINDOW (window_egl);
+  GstGLContext *context = gst_gl_window_get_context (window);
+  GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
+
+  if (window_egl->native.width != draw_data->width
+      || window_egl->native.height != draw_data->height) {
+    GST_DEBUG ("dimensions don't match, attempting resize");
+    window_resize (window_egl, draw_data->width, draw_data->height);
+  }
+
+  if (window->draw)
+    window->draw (window->draw_data);
+
+  context_class->swap_buffers (context);
+
+  gst_object_unref (context);
+}
+
+static void
+gst_gl_window_dispmanx_egl_draw (GstGLWindow * window, guint width,
+    guint height)
+{
+  struct draw draw_data;
+
+  draw_data.window = GST_GL_WINDOW_DISPMANX_EGL (window);
+  draw_data.width = width;
+  draw_data.height = height;
+
+  gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, &draw_data);
+}
+
+static guintptr
+gst_gl_window_dispmanx_egl_get_display (GstGLWindow * window)
+{
+  GstGLWindowDispmanxEGL *window_egl;
+
+  window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
+
+  return (guintptr) window_egl->egldisplay;
+}