mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 16:26:39 +00:00
cfc0230e04
Commit ab48bb6f0f
changed the API of
GstGLWindow.
335 lines
9.8 KiB
C
335 lines
9.8 KiB
C
/*
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* GStreamer
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* Copyright (C) 2013 Julien Isorce <julien.isorce@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "../gstgl_fwd.h"
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#include <gst/gl/gstglcontext.h>
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#include "gstglwindow_dispmanx_egl.h"
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#define GST_CAT_DEFAULT gst_gl_window_debug
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#define gst_gl_window_dispmanx_egl_parent_class parent_class
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G_DEFINE_TYPE (GstGLWindowDispmanxEGL, gst_gl_window_dispmanx_egl,
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GST_GL_TYPE_WINDOW);
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static guintptr gst_gl_window_dispmanx_egl_get_window_handle (GstGLWindow *
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window);
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static void gst_gl_window_dispmanx_egl_set_window_handle (GstGLWindow * window,
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guintptr handle);
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static void gst_gl_window_dispmanx_egl_set_preferred_size (GstGLWindow * window,
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gint width, gint height);
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static void gst_gl_window_dispmanx_egl_draw (GstGLWindow * window);
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static void gst_gl_window_dispmanx_egl_run (GstGLWindow * window);
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static void gst_gl_window_dispmanx_egl_quit (GstGLWindow * window);
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static void gst_gl_window_dispmanx_egl_send_message_async (GstGLWindow * window,
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GstGLWindowCB callback, gpointer data, GDestroyNotify destroy);
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static void gst_gl_window_dispmanx_egl_close (GstGLWindow * window);
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static gboolean gst_gl_window_dispmanx_egl_open (GstGLWindow * window,
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GError ** error);
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static guintptr gst_gl_window_dispmanx_egl_get_display (GstGLWindow * window);
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static void window_resize (GstGLWindowDispmanxEGL * window_egl, guint width,
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guint height);
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static void
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gst_gl_window_dispmanx_egl_class_init (GstGLWindowDispmanxEGLClass * klass)
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{
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GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
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window_class->get_window_handle =
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GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_get_window_handle);
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window_class->set_window_handle =
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GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_set_window_handle);
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window_class->draw_unlocked =
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GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_draw);
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window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_draw);
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window_class->run = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_run);
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window_class->quit = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_quit);
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window_class->send_message_async =
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GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_send_message_async);
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window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_close);
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window_class->open = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_open);
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window_class->get_display =
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GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_get_display);
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window_class->set_preferred_size =
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GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_set_preferred_size);
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}
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static void
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gst_gl_window_dispmanx_egl_init (GstGLWindowDispmanxEGL * window)
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{
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}
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/* Must be called in the gl thread */
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GstGLWindowDispmanxEGL *
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gst_gl_window_dispmanx_egl_new (void)
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{
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GstGLWindowDispmanxEGL *window;
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GST_DEBUG ("creating Dispmanx EGL window");
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window = g_object_new (GST_GL_TYPE_WINDOW_DISPMANX_EGL, NULL);
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window->egldisplay = EGL_DEFAULT_DISPLAY;
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window->display = 0;
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window->dp_width = 0;
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window->dp_height = 0;
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window->native.element = 0;
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window->native.width = 0;
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window->native.height = 0;
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return window;
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}
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static void
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gst_gl_window_dispmanx_egl_close (GstGLWindow * window)
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{
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GstGLWindowDispmanxEGL *window_egl;
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DISPMANX_UPDATE_HANDLE_T dispman_update;
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window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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if (window_egl->native.element) {
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dispman_update = vc_dispmanx_update_start (0);
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vc_dispmanx_element_remove (dispman_update, window_egl->native.element);
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vc_dispmanx_update_submit_sync (dispman_update);
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}
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vc_dispmanx_display_close (window_egl->display);
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g_main_loop_unref (window_egl->loop);
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window_egl->loop = NULL;
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g_main_context_unref (window_egl->main_context);
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window_egl->main_context = NULL;
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}
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static gboolean
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gst_gl_window_dispmanx_egl_open (GstGLWindow * window, GError ** error)
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{
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GstGLWindowDispmanxEGL *window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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gint ret = graphics_get_display_size (0, &window_egl->dp_width,
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&window_egl->dp_height);
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if (ret < 0) {
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GST_ERROR ("Can't open display");
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return FALSE;
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}
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GST_DEBUG ("Got display size: %dx%d\n", window_egl->dp_width,
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window_egl->dp_height);
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window_egl->native.width = 0;
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window_egl->native.height = 0;
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window_egl->display = vc_dispmanx_display_open (0);
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window_egl->native.element = 0;
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window_egl->main_context = g_main_context_new ();
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window_egl->loop = g_main_loop_new (window_egl->main_context, FALSE);
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window_resize (window_egl, 16, 16);
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return TRUE;
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}
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static void
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gst_gl_window_dispmanx_egl_run (GstGLWindow * window)
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{
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GstGLWindowDispmanxEGL *window_egl;
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window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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GST_LOG ("starting main loop");
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g_main_loop_run (window_egl->loop);
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GST_LOG ("exiting main loop");
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}
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static void
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gst_gl_window_dispmanx_egl_quit (GstGLWindow * window)
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{
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GstGLWindowDispmanxEGL *window_egl;
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window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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GST_LOG ("sending quit");
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g_main_loop_quit (window_egl->loop);
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GST_LOG ("quit sent");
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}
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typedef struct _GstGLMessage
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{
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GstGLWindowCB callback;
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gpointer data;
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GDestroyNotify destroy;
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} GstGLMessage;
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static gboolean
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_run_message (GstGLMessage * message)
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{
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if (message->callback)
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message->callback (message->data);
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if (message->destroy)
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message->destroy (message->data);
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g_slice_free (GstGLMessage, message);
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return FALSE;
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}
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static void
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gst_gl_window_dispmanx_egl_send_message_async (GstGLWindow * window,
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GstGLWindowCB callback, gpointer data, GDestroyNotify destroy)
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{
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GstGLWindowDispmanxEGL *window_egl;
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GstGLMessage *message;
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window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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message = g_slice_new (GstGLMessage);
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message->callback = callback;
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message->data = data;
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message->destroy = destroy;
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g_main_context_invoke (window_egl->main_context, (GSourceFunc) _run_message,
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message);
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}
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static guintptr
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gst_gl_window_dispmanx_egl_get_window_handle (GstGLWindow * window)
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{
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return (guintptr) & GST_GL_WINDOW_DISPMANX_EGL (window)->native;
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}
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static void
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gst_gl_window_dispmanx_egl_set_window_handle (GstGLWindow * window,
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guintptr handle)
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{
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}
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static void
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gst_gl_window_dispmanx_egl_set_preferred_size (GstGLWindow * window, gint width, gint height)
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{
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GstGLWindowDispmanxEGL *window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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window_egl->preferred_width = width;
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window_egl->preferred_height = height;
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}
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static void
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window_resize (GstGLWindowDispmanxEGL * window_egl, guint width, guint height)
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{
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GST_DEBUG ("resizing window from %ux%u to %ux%u",
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window_egl->native.width, window_egl->native.height, width, height);
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if (window_egl->display) {
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VC_RECT_T dst_rect;
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VC_RECT_T src_rect;
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GstVideoRectangle src, dst, res;
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DISPMANX_UPDATE_HANDLE_T dispman_update;
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VC_DISPMANX_ALPHA_T alpha =
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{ DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS, 255, 0 };
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/* Center width*height frame inside dp_width*dp_height */
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src.w = width;
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src.h = height;
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src.x = src.y = 0;
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dst.w = window_egl->dp_width;
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dst.h = window_egl->dp_height;
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dst.x = dst.y = 0;
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gst_video_sink_center_rect (src, dst, &res, FALSE);
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dst_rect.x = res.x;
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dst_rect.y = res.y;
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dst_rect.width = res.w;
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dst_rect.height = res.h;
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src_rect.x = 0;
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src_rect.y = 0;
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src_rect.width = width << 16;
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src_rect.height = height << 16;
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dispman_update = vc_dispmanx_update_start (0);
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if (window_egl->native.element) {
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vc_dispmanx_element_change_attributes (dispman_update,
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window_egl->native.element, 0x00000110, 0, 0, &dst_rect, &src_rect, 0,
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0);
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} else {
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window_egl->native.element = vc_dispmanx_element_add (dispman_update,
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window_egl->display, 0, &dst_rect, 0, &src_rect,
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DISPMANX_PROTECTION_NONE, &alpha, 0, 0);
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}
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vc_dispmanx_update_submit_sync (dispman_update);
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if (GST_GL_WINDOW (window_egl)->resize)
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GST_GL_WINDOW (window_egl)->
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resize (GST_GL_WINDOW (window_egl)->resize_data, width, height);
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}
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window_egl->native.width = width;
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window_egl->native.height = height;
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}
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static void
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draw_cb (gpointer data)
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{
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GstGLWindowDispmanxEGL *window_egl = data;
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GstGLWindow *window = GST_GL_WINDOW (window_egl);
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GstGLContext *context = gst_gl_window_get_context (window);
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GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
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if (window_egl->native.width != window_egl->preferred_width
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|| window_egl->native.height != window_egl->preferred_height) {
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GST_DEBUG ("dimensions don't match, attempting resize");
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window_resize (window_egl, window_egl->preferred_width,
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window_egl->preferred_height);
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}
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if (window->draw)
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window->draw (window->draw_data);
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context_class->swap_buffers (context);
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gst_object_unref (context);
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}
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static void
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gst_gl_window_dispmanx_egl_draw (GstGLWindow * window)
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{
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gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
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}
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static guintptr
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gst_gl_window_dispmanx_egl_get_display (GstGLWindow * window)
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{
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GstGLWindowDispmanxEGL *window_egl;
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window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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return (guintptr) window_egl->egldisplay;
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}
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