+++ /dev/null
-/*****************************************************************************
- * opengl.c: OpenGL video output
- *****************************************************************************
- * Copyright (C) 2004 the VideoLAN team
- * $Id$
- *
- * Authors: Cyril Deguet <asmax@videolan.org>
- * Gildas Bazin <gbazin@videolan.org>
- * Eric Petit <titer@m0k.org>
- * Cedric Cocquebert <cedric.cocquebert@supelec.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <assert.h>
-
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_vout.h>
-#include "opengl.h"
-
-/*****************************************************************************
- * Vout interface
- *****************************************************************************/
-static int CreateVout ( vlc_object_t * );
-static void DestroyVout ( vlc_object_t * );
-static int Init ( vout_thread_t * );
-static void End ( vout_thread_t * );
-static int Manage ( vout_thread_t * );
-static void Render ( vout_thread_t *, picture_t * );
-static void DisplayVideo ( vout_thread_t *, picture_t * );
-static int Control ( vout_thread_t *, int, va_list );
-
-static int SendEvents ( vlc_object_t *, char const *,
- vlc_value_t, vlc_value_t, void * );
-
-#define PROVIDER_TEXT N_("OpenGL Provider")
-#define PROVIDER_LONGTEXT N_("Allows you to modify what OpenGL provider should be used")
-
-vlc_module_begin ()
- set_shortname( "OpenGL" )
- set_category( CAT_VIDEO )
- set_subcategory( SUBCAT_VIDEO_VOUT )
- set_description( N_("OpenGL video output") )
-#ifdef __APPLE__
- set_capability( "video output", 400 )
-#else
- set_capability( "video output", 20 )
-#endif
- add_shortcut( "opengl" )
- /* Allow opengl provider plugin selection */
- add_module( "opengl-provider", "opengl provider", NULL, NULL,
- PROVIDER_TEXT, PROVIDER_LONGTEXT, true )
- set_callbacks( CreateVout, DestroyVout )
-vlc_module_end ()
-
-/*****************************************************************************
- * vout_sys_t: video output method descriptor
- *****************************************************************************
- * This structure is part of the video output thread descriptor.
- * It describes the OpenGL specific properties of the output thread.
- *****************************************************************************/
-struct vout_sys_t
-{
- vout_thread_t *p_vout;
- vout_opengl_t gl;
- vout_display_opengl_t vgl;
-
- picture_pool_t *p_pool;
- picture_t *p_current;
-};
-
-/*****************************************************************************
- * CreateVout: This function allocates and initializes the OpenGL vout method.
- *****************************************************************************/
-static int CreateVout( vlc_object_t *p_this )
-{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
- vout_sys_t *p_sys;
- char * psz;
-
- /* Allocate structure */
- p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
- if( p_sys == NULL )
- return VLC_ENOMEM;
-
- /* Get window */
- p_sys->p_vout =
- (vout_thread_t *)vlc_object_create( p_this, sizeof( vout_thread_t ) );
- if( p_sys->p_vout == NULL )
- {
- free( p_sys );
- return VLC_ENOMEM;
- }
- vlc_object_attach( p_sys->p_vout, p_this );
-
- p_sys->p_vout->i_window_width = p_vout->i_window_width;
- p_sys->p_vout->i_window_height = p_vout->i_window_height;
- p_sys->p_vout->b_fullscreen = p_vout->b_fullscreen;
- p_sys->p_vout->render.i_width = p_vout->render.i_width;
- p_sys->p_vout->render.i_height = p_vout->render.i_height;
- p_sys->p_vout->render.i_aspect = p_vout->render.i_aspect;
- p_sys->p_vout->fmt_render = p_vout->fmt_render;
- p_sys->p_vout->fmt_in = p_vout->fmt_in;
- p_sys->p_vout->b_autoscale = p_vout->b_autoscale;
- p_sys->p_vout->i_zoom = p_vout->i_zoom;
- p_sys->p_vout->i_alignment = p_vout->i_alignment;
- var_Create( p_sys->p_vout, "video-deco",
- VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
-
- /* Forward events from the opengl provider */
- var_Create( p_sys->p_vout, "mouse-moved", VLC_VAR_COORDS );
- var_Create( p_sys->p_vout, "mouse-clicked", VLC_VAR_COORDS );
- var_Create( p_sys->p_vout, "mouse-button-down", VLC_VAR_INTEGER );
- var_Create( p_sys->p_vout, "video-on-top",
- VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Create( p_sys->p_vout, "autoscale",
- VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Create( p_sys->p_vout, "scale",
- VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
-
- var_AddCallback( p_sys->p_vout, "mouse-moved", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "mouse-clicked", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "mouse-button-down", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "video-on-top", SendEvents, p_vout );
- var_AddCallback( p_vout, "autoscale", SendEvents, p_sys->p_vout );
- var_AddCallback( p_vout, "scale", SendEvents, p_sys->p_vout );
-
- psz = var_CreateGetString( p_vout, "opengl-provider" );
- p_sys->p_vout->p_module =
- module_need( p_sys->p_vout, "opengl provider", psz, false );
- free( psz );
- if( p_sys->p_vout->p_module == NULL )
- {
- msg_Warn( p_vout, "No OpenGL provider found" );
- /* no need for var_DelCallback here :-) */
- vlc_object_release( p_sys->p_vout );
- free( p_sys );
- return VLC_ENOOBJ;
- }
-
- p_vout->pf_init = Init;
- p_vout->pf_end = End;
- p_vout->pf_manage = Manage;
- p_vout->pf_render = Render;
- p_vout->pf_display = DisplayVideo;
- p_vout->pf_control = Control;
-
- return VLC_SUCCESS;
-}
-
-static int OpenglLock(vout_opengl_t *gl)
-{
- vout_thread_t *p_vout = gl->sys;
-
- if( !p_vout->pf_lock )
- return VLC_SUCCESS;
- return p_vout->pf_lock( p_vout );
-}
-static void OpenglUnlock(vout_opengl_t *gl)
-{
- vout_thread_t *p_vout = gl->sys;
-
- if( p_vout->pf_unlock )
- p_vout->pf_unlock( p_vout );
-}
-static void OpenglSwap(vout_opengl_t *gl)
-{
- vout_thread_t *p_vout = gl->sys;
- p_vout->pf_swap( p_vout );
-}
-
-/*****************************************************************************
- * Init: initialize the OpenGL video thread output method
- *****************************************************************************/
-static int Init( vout_thread_t *p_vout )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- p_sys->p_vout->pf_init( p_sys->p_vout );
-
- p_sys->gl.lock = OpenglLock;
- p_sys->gl.unlock = OpenglUnlock;
- p_sys->gl.swap = OpenglSwap;
- p_sys->gl.sys = p_sys->p_vout;
-
- video_format_t fmt;
- video_format_Init( &fmt, 0 );
- video_format_Setup( &fmt,
- p_vout->render.i_chroma,
- p_vout->render.i_width,
- p_vout->render.i_height,
- p_vout->render.i_aspect * p_vout->render.i_height,
- VOUT_ASPECT_FACTOR * p_vout->render.i_width );
-
-
- if( vout_display_opengl_Init( &p_sys->vgl, &fmt, &p_sys->gl ) )
- {
- I_OUTPUTPICTURES = 0;
- return VLC_EGENERIC;
- }
- p_sys->p_pool = vout_display_opengl_GetPool( &p_sys->vgl );
- if( !p_sys->p_pool )
- {
- vout_display_opengl_Clean( &p_sys->vgl );
- I_OUTPUTPICTURES = 0;
- return VLC_EGENERIC;
- }
-
- /* */
- p_vout->output.i_chroma = fmt.i_chroma;
- p_vout->output.i_rmask = fmt.i_rmask;
- p_vout->output.i_gmask = fmt.i_gmask;
- p_vout->output.i_bmask = fmt.i_bmask;
-
- /* Since OpenGL can do rescaling for us, stick to the default
- * coordinates and aspect. */
- p_vout->output.i_width = p_vout->render.i_width;
- p_vout->output.i_height = p_vout->render.i_height;
- p_vout->output.i_aspect = p_vout->render.i_aspect;
-
- p_vout->fmt_out = p_vout->fmt_in;
- p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
-
- /* */
- p_sys->p_current = picture_pool_Get( p_sys->p_pool );
- p_vout->p_picture[0] = *p_sys->p_current;
- p_vout->p_picture[0].i_status = DESTROYED_PICTURE;
- p_vout->p_picture[0].i_type = DIRECT_PICTURE;
- p_vout->p_picture[0].i_refcount = 0;
- p_vout->p_picture[0].p_sys = NULL;
- PP_OUTPUTPICTURE[0] = &p_vout->p_picture[0];
-
- I_OUTPUTPICTURES = 1;
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * End: terminate GLX video thread output method
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- if( I_OUTPUTPICTURES > 0 )
- {
-
- if( p_sys->p_current )
- picture_Release( p_sys->p_current );
- vout_display_opengl_Clean( &p_sys->vgl );
-
- p_vout->p_picture[0].i_status = FREE_PICTURE;
- I_OUTPUTPICTURES = 0;
- }
-
- /* We must release the opengl provider here: opengl requiere init and end
- to be done in the same thread */
- module_unneed( p_sys->p_vout, p_sys->p_vout->p_module );
- vlc_object_release( p_sys->p_vout );
-}
-
-/*****************************************************************************
- * Destroy: destroy GLX video thread output method
- *****************************************************************************
- * Terminate an output method created by CreateVout
- *****************************************************************************/
-static void DestroyVout( vlc_object_t *p_this )
-{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
- vout_sys_t *p_sys = p_vout->p_sys;
-
- free( p_sys );
-}
-
-/*****************************************************************************
- * Manage: handle Sys events
- *****************************************************************************
- * This function should be called regularly by video output thread. It returns
- * a non null value if an error occurred.
- *****************************************************************************/
-static int Manage( vout_thread_t *p_vout )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
- int i_ret, i_fullscreen_change;
-
- i_fullscreen_change = ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE );
-
- p_vout->fmt_out.i_x_offset = p_sys->p_vout->fmt_in.i_x_offset =
- p_vout->fmt_in.i_x_offset;
- p_vout->fmt_out.i_y_offset = p_sys->p_vout->fmt_in.i_y_offset =
- p_vout->fmt_in.i_y_offset;
- p_vout->fmt_out.i_visible_width = p_sys->p_vout->fmt_in.i_visible_width =
- p_vout->fmt_in.i_visible_width;
- p_vout->fmt_out.i_visible_height = p_sys->p_vout->fmt_in.i_visible_height =
- p_vout->fmt_in.i_visible_height;
- p_vout->fmt_out.i_sar_num = p_sys->p_vout->fmt_in.i_sar_num =
- p_vout->fmt_in.i_sar_num;
- p_vout->fmt_out.i_sar_den = p_sys->p_vout->fmt_in.i_sar_den =
- p_vout->fmt_in.i_sar_den;
- p_vout->output.i_aspect = (int64_t)p_vout->fmt_in.i_sar_num * p_vout->fmt_in.i_width * VOUT_ASPECT_FACTOR /
- p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_height;
-
- p_sys->p_vout->i_changes = p_vout->i_changes;
- i_ret = p_sys->p_vout->pf_manage( p_sys->p_vout );
- p_vout->i_changes = p_sys->p_vout->i_changes;
-
-#ifdef __APPLE__
- /* On OS X, we create the window and the GL view when entering
- fullscreen - the textures have to be inited again */
- if( i_fullscreen_change )
- {
- /* FIXME should we release p_current ? */
- vout_display_opengl_ResetTextures( &p_sys->vgl );
- }
-#endif
-
-// to align in real time in OPENGL
- if (p_sys->p_vout->i_alignment != p_vout->i_alignment)
- {
- p_vout->i_changes |= VOUT_CROP_CHANGE; //to force change
- p_sys->p_vout->i_alignment = p_vout->i_alignment;
- }
-
- /* forward signal that autoscale toggle has changed */
- if (p_vout->i_changes & VOUT_SCALE_CHANGE )
- {
- p_vout->i_changes &= ~VOUT_SCALE_CHANGE;
-
- p_sys->p_vout->i_changes |= VOUT_SCALE_CHANGE;
- }
-
- /* forward signal that scale has changed */
- if (p_vout->i_changes & VOUT_ZOOM_CHANGE )
- {
- p_vout->i_changes &= ~VOUT_ZOOM_CHANGE;
-
- p_sys->p_vout->i_changes |= VOUT_ZOOM_CHANGE;
- }
-
-
- return i_ret;
-}
-
-/*****************************************************************************
- * Render: render previously calculated output
- *****************************************************************************/
-static void Render( vout_thread_t *p_vout, picture_t *p_pic )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- picture_t *p_next = p_sys->p_current;
-
- if( VLCGL_TEXTURE_COUNT > 1 )
- {
- /* Get the next picture to display */
- p_next = picture_pool_Get( p_sys->p_pool );
- assert( p_next );
- }
-
- if( p_sys->p_current )
- {
- assert( p_sys->p_current->p[0].p_pixels == p_pic->p[0].p_pixels );
-
- /* Make sure we have the prepare after the picture_pool_Get,
- * because picture_pool_Get() will bind the new picture texture,
- * and vout_display_opengl_Prepare() bind the current rendered picture
- * texture.
- * DisplayVideo() will effectively use the last binded texture. */
-
- vout_display_opengl_Prepare( &p_sys->vgl, p_sys->p_current );
- }
-
- if( p_sys->p_current != p_next ) {
- if( p_sys->p_current )
- picture_Release( p_sys->p_current );
-
- /* Swap the picture texture on opengl vout side. */
- p_sys->p_current = p_next;
-
- /* Now, switch the only picture that is being used
- * to render in the backend to point to our "next"
- * picture texture */
- p_pic->p[0].p_pixels = p_sys->p_current->p[0].p_pixels;
- }
-
- VLC_UNUSED( p_pic );
-}
-
-/*****************************************************************************
- * DisplayVideo: displays previously rendered output
- *****************************************************************************/
-static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- vout_display_opengl_Display( &p_sys->vgl, &p_vout->fmt_out );
- VLC_UNUSED( p_pic );
-}
-
-/*****************************************************************************
- * Control: control facility for the vout
- *****************************************************************************/
-static int Control( vout_thread_t *p_vout, int i_query, va_list args )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- if( p_sys->p_vout->pf_control )
- return p_sys->p_vout->pf_control( p_sys->p_vout, i_query, args );
- return VLC_EGENERIC;
-}
-
-/*****************************************************************************
- * SendEvents: forward mouse and keyboard events to the parent p_vout
- *****************************************************************************/
-static int SendEvents( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
-{
- VLC_UNUSED(p_this); VLC_UNUSED(oldval);
- return var_Set( (vlc_object_t *)_p_vout, psz_var, newval );
-}
-
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