mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 03:19:40 +00:00
551 lines
13 KiB
C
551 lines
13 KiB
C
/*
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* GStreamer
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#undef UNICODE
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#include <windows.h>
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#define UNICODE
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#include "gstglwindow.h"
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#define WM_GSTGLWINDOW (WM_APP+1)
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void gst_gl_window_set_pixel_format (GstGLWindow *window);
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LRESULT CALLBACK window_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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#define GST_GL_WINDOW_GET_PRIVATE(o) \
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(G_TYPE_INSTANCE_GET_PRIVATE((o), GST_GL_TYPE_WINDOW, GstGLWindowPrivate))
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enum
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{
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PROP_0
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};
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struct _GstGLWindowPrivate
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{
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HWND internal_win_id;
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HWND external_win_id;
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HDC device;
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HGLRC gl_context;
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gboolean has_external_window_id;
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gboolean has_external_gl_context;
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GstGLWindowCB draw_cb;
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gpointer draw_data;
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GstGLWindowCB2 resize_cb;
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gpointer resize_data;
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GstGLWindowCB close_cb;
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gpointer close_data;
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};
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G_DEFINE_TYPE (GstGLWindow, gst_gl_window, G_TYPE_OBJECT);
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#undef G_LOG_DOMAIN
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#define G_LOG_DOMAIN "GstGLWindow"
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gboolean _gst_gl_window_debug = FALSE;
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/* Must be called in the gl thread */
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static void
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gst_gl_window_finalize (GObject * object)
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{
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GstGLWindow *window = GST_GL_WINDOW (object);
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GstGLWindowPrivate *priv = window->priv;
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G_OBJECT_CLASS (gst_gl_window_parent_class)->finalize (object);
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}
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static void
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gst_gl_window_log_handler (const gchar *domain, GLogLevelFlags flags,
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const gchar *message, gpointer user_data)
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{
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if (_gst_gl_window_debug) {
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g_log_default_handler (domain, flags, message, user_data);
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}
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}
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static void
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gst_gl_window_class_init (GstGLWindowClass * klass)
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{
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WNDCLASS wc;
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ATOM atom = 0;
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GObjectClass *obj_class = G_OBJECT_CLASS (klass);
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klass->instance = (guint64) GetModuleHandle (NULL);
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g_type_class_add_private (klass, sizeof (GstGLWindowPrivate));
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obj_class->finalize = gst_gl_window_finalize;
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GetClassInfo ((HINSTANCE)klass->instance, "GSTGL", &wc);
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ZeroMemory (&wc, sizeof(WNDCLASS));
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wc.lpfnWndProc = window_proc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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wc.hInstance = (HINSTANCE) klass->instance;
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wc.hIcon = LoadIcon( NULL, IDI_WINLOGO );
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wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
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wc.hCursor = LoadCursor( NULL, IDC_ARROW );
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wc.hbrBackground = NULL;
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wc.lpszMenuName = NULL;
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wc.lpszClassName = "GSTGL";
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atom = RegisterClass (&wc);
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g_assert (atom);
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g_debug ("GSTGL window class registered\n");
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}
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static void
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gst_gl_window_init (GstGLWindow *window)
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{
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window->priv = GST_GL_WINDOW_GET_PRIVATE (window);
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if (g_getenv ("GST_GL_WINDOW_DEBUG") != NULL)
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_gst_gl_window_debug = TRUE;
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g_log_set_handler ("GstGLWindow", G_LOG_LEVEL_DEBUG,
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gst_gl_window_log_handler, NULL);
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}
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/* Must be called in the gl thread */
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GstGLWindow *
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gst_gl_window_new (gint width, gint height)
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{
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GstGLWindow *window = g_object_new (GST_GL_TYPE_WINDOW, NULL);
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GstGLWindowPrivate *priv = window->priv;
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GstGLWindowClass* klass = GST_GL_WINDOW_GET_CLASS (window);
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static gint x = 50;
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static gint y = 0;
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y = 50 + height * y++;
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priv->internal_win_id = 0;
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priv->external_win_id = 0;
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priv->device = 0;
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priv->gl_context = 0;
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priv->has_external_window_id = FALSE;
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priv->has_external_gl_context = FALSE;
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priv->draw_cb = NULL;
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priv->draw_data = NULL;
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priv->resize_cb = NULL;
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priv->resize_data = NULL;
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priv->close_cb = NULL;
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priv->close_data = NULL;
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width += 2 * GetSystemMetrics (SM_CXSIZEFRAME);
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height += 2 * GetSystemMetrics (SM_CYSIZEFRAME) + GetSystemMetrics (SM_CYCAPTION);
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priv->internal_win_id = CreateWindowEx (
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0,
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"GSTGL",
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"OpenGL renderer",
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WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW,
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x, y, width, height,
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(HWND) NULL,
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(HMENU) NULL,
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(HINSTANCE) klass->instance,
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window
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);
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g_assert (priv->internal_win_id);
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g_debug ("gl window created: %d\n", priv->internal_win_id);
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//device is set in the window_proc
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g_assert (priv->device);
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UpdateWindow (priv->internal_win_id);
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ShowCursor (TRUE);
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wglMakeCurrent (priv->device, priv->gl_context);
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return window;
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}
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GQuark
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gst_gl_window_error_quark (void)
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{
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return g_quark_from_static_string ("gst-gl-window-error");
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}
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void
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gst_gl_window_set_external_window_id (GstGLWindow *window, guint64 id)
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{
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g_warning ("gst_gl_window_set_external_window_id: not implemented\n");
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}
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void
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gst_gl_window_set_external_gl_context (GstGLWindow *window, guint64 context)
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{
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g_warning ("gst_gl_window_set_external_gl_context: not implemented\n");
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}
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/* Must be called in the gl thread */
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void
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gst_gl_window_set_draw_callback (GstGLWindow *window, GstGLWindowCB callback, gpointer data)
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{
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GstGLWindowPrivate *priv = window->priv;
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priv->draw_cb = callback;
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priv->draw_data = data;
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}
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/* Must be called in the gl thread */
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void
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gst_gl_window_set_resize_callback (GstGLWindow *window, GstGLWindowCB2 callback , gpointer data)
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{
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GstGLWindowPrivate *priv = window->priv;
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priv->resize_cb = callback;
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priv->resize_data = data;
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}
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/* Must be called in the gl thread */
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void
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gst_gl_window_set_close_callback (GstGLWindow *window, GstGLWindowCB callback, gpointer data)
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{
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GstGLWindowPrivate *priv = window->priv;
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priv->close_cb = callback;
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priv->close_data = data;
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}
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/* Must be called in the gl thread */
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gboolean
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gst_gl_window_has_external_window_id (GstGLWindow *window)
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{
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gboolean has_internal_window_id = TRUE;
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GstGLWindowPrivate *priv = window->priv;
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has_internal_window_id = priv->has_external_window_id;
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return has_internal_window_id;
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}
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/* Must be called in the gl thread */
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gboolean
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gst_gl_window_has_internal_gl_context (GstGLWindow *window)
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{
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gboolean has_external_gl_context = TRUE;
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GstGLWindowPrivate *priv = window->priv;
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has_external_gl_context = priv->has_external_gl_context;
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return has_external_gl_context;
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}
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/* Must be called in the gl thread */
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guint64 gst_gl_window_get_window_id (GstGLWindow *window)
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{
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g_warning ("gst_gl_window_get_window_id: not implemented\n");
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return 0;
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}
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/* Must be called in the gl thread */
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guint64
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gst_gl_window_get_gl_context (GstGLWindow *window)
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{
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g_warning ("gst_gl_window_get_gl_context: not implemented\n");
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return 0;
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}
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/* Thread safe */
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void
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gst_gl_window_visible (GstGLWindow *window, gboolean visible)
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{
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GstGLWindowPrivate *priv = window->priv;
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BOOL ret = FALSE;
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if (visible)
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ret = ShowWindow (priv->internal_win_id, SW_SHOW);
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else
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ret = ShowWindow (priv->internal_win_id, SW_HIDE);
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}
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/* Thread safe */
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void
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gst_gl_window_draw (GstGLWindow *window)
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{
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GstGLWindowPrivate *priv = window->priv;
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if (!priv->has_external_window_id)
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RedrawWindow (priv->internal_win_id, NULL, NULL,
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RDW_NOERASE | RDW_INTERNALPAINT | RDW_INVALIDATE /*| RDW_UPDATENOW*/);
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else
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{
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PAINTSTRUCT ps;
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/*RECT destsurf_rect;
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POINT dest_surf_point;
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dest_surf_point.x = 0;
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dest_surf_point.y = 0;
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ClientToScreen (priv->external_win_id, &dest_surf_point);
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GetClientRect (priv->external_win_id, &destsurf_rect);
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OffsetRect (&destsurf_rect, dest_surf_point.x, dest_surf_point.y);
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if (window->State.Width != (destsurf_rect.right - destsurf_rect.left) ||
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window->State.Height != (destsurf_rect.bottom - destsurf_rect.top))
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{
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window->State.Width = destsurf_rect.right - destsurf_rect.left;
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window->State.Height = destsurf_rect.bottom - destsurf_rect.top;
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window->State.NeedToResize = GL_FALSE;
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if( FETCH_WCB( *window, Reshape ) )
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INVOKE_WCB( *window, Reshape, ( window->State.Width, window->State.Height ) );
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glViewport( 0, 0, window->State.Width, window->State.Height );
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}*/
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BeginPaint (priv->external_win_id, &ps);
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priv->draw_cb (priv->draw_data); //FIXME: wrong thread caller
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//glFlush();
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SwapBuffers (priv->device);
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EndPaint (priv->external_win_id, &ps);
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}
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}
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/* Thread safe */
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void
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gst_gl_window_resize (GstGLWindow *window, gint width, gint height)
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{
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GstGLWindowPrivate *priv = window->priv;
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gint x = 0;
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gint y = 0;
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RECT winRect;
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GetWindowRect (priv->internal_win_id, &winRect);
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x = winRect.left;
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y = winRect.top;
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width += 2 * GetSystemMetrics (SM_CXSIZEFRAME);
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height += 2 * GetSystemMetrics (SM_CYSIZEFRAME) + GetSystemMetrics (SM_CYCAPTION);
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SetWindowPos (priv->internal_win_id, HWND_TOP, x, y, width, height,
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SWP_ASYNCWINDOWPOS | SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING | SWP_NOZORDER);
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}
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void
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gst_gl_window_run_loop (GstGLWindow *window)
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{
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GstGLWindowPrivate *priv = window->priv;
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gboolean running = TRUE;
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gboolean bRet = FALSE;
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MSG msg;
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g_debug ("begin loop\n");
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while (running && (bRet = GetMessage (&msg, NULL, 0, 0)) != 0)
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{
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if (bRet == -1)
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{
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g_debug ("error in gst_gl_window_run_loop\n");
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running = FALSE;
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}
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else
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{
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TranslateMessage (&msg);
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DispatchMessage (&msg);
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}
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}
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g_debug ("end loop\n");
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}
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/* Thread safe */
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void
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gst_gl_window_quit_loop (GstGLWindow *window)
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{
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if (window)
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{
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GstGLWindowPrivate *priv = window->priv;
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LRESULT res = PostMessage(priv->internal_win_id, WM_CLOSE, 0, 0);
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g_assert (SUCCEEDED (res));
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}
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}
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/* Thread safe */
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void
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gst_gl_window_send_message (GstGLWindow *window, GstGLWindowCB callback, gpointer data)
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{
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if (window)
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{
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GstGLWindowPrivate *priv = window->priv;
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LRESULT res = SendMessage (priv->internal_win_id, WM_GSTGLWINDOW, (WPARAM) data, (LPARAM) callback);
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g_assert (SUCCEEDED (res));
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}
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}
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/* PRIVATE */
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void
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gst_gl_window_set_pixel_format (GstGLWindow *window)
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{
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GstGLWindowPrivate *priv = window->priv;
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PIXELFORMATDESCRIPTOR pfd;
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gint pixelformat = 0;
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gboolean res = FALSE;
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pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
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pfd.nVersion = 1;
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pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
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pfd.iPixelType = PFD_TYPE_RGBA;
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pfd.cColorBits = 24;
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pfd.cRedBits = 0;
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pfd.cRedShift = 0;
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pfd.cGreenBits = 0;
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pfd.cGreenShift = 0;
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pfd.cBlueBits = 0;
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pfd.cBlueShift = 0;
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pfd.cAlphaBits = 0;
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pfd.cAlphaShift = 0;
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pfd.cAccumBits = 0;
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pfd.cAccumRedBits = 0;
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pfd.cAccumGreenBits = 0;
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pfd.cAccumBlueBits = 0;
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pfd.cAccumAlphaBits = 0;
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pfd.cDepthBits = 24;
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pfd.cStencilBits = 8;
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pfd.cAuxBuffers = 0;
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pfd.iLayerType = PFD_MAIN_PLANE;
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pfd.bReserved = 0;
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pfd.dwLayerMask = 0;
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pfd.dwVisibleMask = 0;
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pfd.dwDamageMask = 0;
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pfd.cColorBits = (BYTE) GetDeviceCaps (priv->device, BITSPIXEL);
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pixelformat = ChoosePixelFormat (priv->device, &pfd );
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g_assert (pixelformat);
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res = SetPixelFormat (priv->device, pixelformat, &pfd);
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g_assert (res);
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}
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LRESULT CALLBACK window_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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static gboolean created = FALSE;
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if (uMsg == WM_CREATE) {
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GstGLWindow *window = (GstGLWindow *) (((LPCREATESTRUCT) lParam)->lpCreateParams);
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g_debug ("WM_CREATE\n");
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SetWindowLongPtr (hWnd, GWLP_USERDATA, (LONG)(guint64)(gpointer) window);
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g_assert (window);
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{
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GstGLWindowPrivate *priv = window->priv;
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priv->device = GetDC (hWnd);
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gst_gl_window_set_pixel_format (window);
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priv->gl_context = wglCreateContext (priv->device);
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ReleaseDC (hWnd, priv->device);
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}
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created = TRUE;
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return 0;
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}
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else if (created) {
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GstGLWindow *window = (GstGLWindow *) (guint64) GetWindowLongPtr(hWnd, GWLP_USERDATA);
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GstGLWindowPrivate *priv = NULL;
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g_assert (window);
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priv = window->priv;
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g_assert (priv);
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switch ( uMsg ) {
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case WM_SIZE:
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{
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if (priv->resize_cb)
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priv->resize_cb (priv->resize_data, LOWORD(lParam), HIWORD(lParam));
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break;
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}
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case WM_PAINT:
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{
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if (priv->draw_cb)
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{
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PAINTSTRUCT ps;
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BeginPaint (hWnd, &ps);
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priv->draw_cb (priv->draw_data);
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SwapBuffers (priv->device);
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EndPaint (hWnd, &ps);
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}
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break;
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}
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case WM_CLOSE:
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{
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g_debug ("WM_CLOSE\n");
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if (priv->close_cb)
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priv->close_cb (priv->close_data);
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DestroyWindow(hWnd);
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break;
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}
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case WM_DESTROY:
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{
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g_debug ("WM_DESTROY\n");
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created = FALSE;
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PostQuitMessage (0);
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break;
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}
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case WM_CAPTURECHANGED:
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{
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g_debug ("WM_CAPTURECHANGED\n");
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if (priv->draw_cb)
|
|
priv->draw_cb (priv->draw_data);
|
|
break;
|
|
}
|
|
|
|
case WM_GSTGLWINDOW:
|
|
{
|
|
GstGLWindowCB custom_cb = (GstGLWindowCB) lParam;
|
|
custom_cb ((gpointer) wParam);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
else
|
|
return DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
}
|