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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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325 lines
10 KiB
C
325 lines
10 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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#include "../gstglwindow_private.h"
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#ifndef ELEMENT_CHANGE_LAYER
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/* copied from interface/vmcs_host/vc_vchi_dispmanx.h of userland.git */
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#define ELEMENT_CHANGE_LAYER (1<<0)
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#define ELEMENT_CHANGE_OPACITY (1<<1)
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#define ELEMENT_CHANGE_DEST_RECT (1<<2)
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#define ELEMENT_CHANGE_SRC_RECT (1<<3)
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#define ELEMENT_CHANGE_MASK_RESOURCE (1<<4)
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#define ELEMENT_CHANGE_TRANSFORM (1<<5)
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#endif
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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_TYPE_GL_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_show (GstGLWindow * window);
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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 gboolean gst_gl_window_dispmanx_egl_set_render_rectangle (GstGLWindow *
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window, gint x, gint y, gint width, gint height);
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static void window_resize (GstGLWindowDispmanxEGL * window_egl, guint width,
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guint height, gboolean visible);
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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->show = GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_show);
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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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window_class->set_render_rectangle =
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GST_DEBUG_FUNCPTR (gst_gl_window_dispmanx_egl_set_render_rectangle);
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}
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static void
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gst_gl_window_dispmanx_egl_init (GstGLWindowDispmanxEGL * window_egl)
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{
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window_egl->egldisplay = EGL_DEFAULT_DISPLAY;
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window_egl->visible = FALSE;
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window_egl->display = 0;
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window_egl->dp_width = 0;
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window_egl->dp_height = 0;
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window_egl->native.element = 0;
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window_egl->native.width = 0;
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window_egl->native.height = 0;
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window_egl->foreign.element = 0;
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window_egl->foreign.width = 0;
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window_egl->foreign.height = 0;
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window_egl->render_rect.x = 0;
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window_egl->render_rect.y = 0;
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window_egl->render_rect.w = 0;
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window_egl->render_rect.h = 0;
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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 (GstGLDisplay * display)
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{
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GstGLWindowDispmanxEGL *window;
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if ((gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_EGL) == 0)
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/* we require an egl display to create dispmanx windows */
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return NULL;
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GST_DEBUG ("creating Dispmanx EGL window");
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window = g_object_new (GST_TYPE_GL_WINDOW_DISPMANX_EGL, NULL);
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gst_object_ref_sink (window);
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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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&& window_egl->native.element != window_egl->foreign.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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GST_GL_WINDOW_CLASS (parent_class)->close (window);
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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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g_set_error (error, GST_GL_WINDOW_ERROR,
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GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE, "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.element = 0;
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return GST_GL_WINDOW_CLASS (parent_class)->open (window, error);
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}
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gboolean
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gst_gl_window_dispmanx_egl_create_window (GstGLWindowDispmanxEGL * window_egl)
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{
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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_resize (window_egl, 16, 16, FALSE);
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return TRUE;
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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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GstGLWindowDispmanxEGL *window_egl;
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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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return (guintptr) & window_egl->native;
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return 0;
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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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GstGLWindowDispmanxEGL *window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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EGL_DISPMANX_WINDOW_T *foreign_window = (EGL_DISPMANX_WINDOW_T *) handle;
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DISPMANX_UPDATE_HANDLE_T dispman_update;
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GST_DEBUG_OBJECT (window, "set window handle with size %dx%d",
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foreign_window->width, foreign_window->height);
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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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window_egl->native.element = window_egl->foreign.element =
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foreign_window->element;
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window_egl->native.width = window_egl->foreign.width = foreign_window->width;
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window_egl->native.height = window_egl->foreign.height =
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foreign_window->height;
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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,
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gint height)
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{
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GstGLWindowDispmanxEGL *window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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GST_DEBUG_OBJECT (window, "set preferred size to %dx%d", width, height);
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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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gboolean visible)
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{
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GstGLWindow *window = GST_GL_WINDOW (window_egl);
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GST_DEBUG ("resizing %s window from %ux%u to %ux%u",
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visible ? "visible" : "invisible", window_egl->native.width,
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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, res;
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DISPMANX_UPDATE_HANDLE_T dispman_update;
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uint32_t opacity = visible ? 255 : 0;
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VC_DISPMANX_ALPHA_T alpha =
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{ DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS, opacity, 0 };
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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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/* If there is no render rectangle, center the width*height frame
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* inside dp_width*dp_height */
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if (window_egl->render_rect.w <= 0 || window_egl->render_rect.h <= 0) {
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GstVideoRectangle dst;
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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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} else {
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gst_video_sink_center_rect (src, window_egl->render_rect, &res, FALSE);
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}
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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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uint32_t change_flags =
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ELEMENT_CHANGE_OPACITY | ELEMENT_CHANGE_DEST_RECT |
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ELEMENT_CHANGE_SRC_RECT;
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vc_dispmanx_element_change_attributes (dispman_update,
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window_egl->native.element, change_flags, 0, opacity, &dst_rect,
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&src_rect, 0, 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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gst_gl_window_resize (window, 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 gboolean
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gst_gl_window_dispmanx_egl_set_render_rectangle (GstGLWindow * window,
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gint x, gint y, 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->render_rect.x = x;
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window_egl->render_rect.y = y;
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window_egl->render_rect.w = width;
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window_egl->render_rect.h = height;
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window_resize (window_egl, window_egl->render_rect.w,
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window_egl->render_rect.h, TRUE);
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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_show (GstGLWindow * window)
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{
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GstGLWindowDispmanxEGL *window_egl = GST_GL_WINDOW_DISPMANX_EGL (window);
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if (!window_egl->visible) {
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if (window_egl->render_rect.w <= 0 || window_egl->render_rect.h <= 0) {
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window_resize (window_egl, window_egl->preferred_width,
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window_egl->preferred_height, TRUE);
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}
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window_egl->visible = TRUE;
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}
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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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