voutgl.m
上传用户:riyaled888
上传日期:2009-03-27
资源大小:7338k
文件大小:11k
- /*****************************************************************************
- * vout.m: MacOS X video output module
- *****************************************************************************
- * Copyright (C) 2001-2003 VideoLAN
- * $Id: vout.m 8351 2004-08-02 13:06:38Z hartman $
- *
- * Authors: Colin Delacroix <colin@zoy.org>
- * Florian G. Pflug <fgp@phlo.org>
- * Jon Lech Johansen <jon-vl@nanocrew.net>
- * Derk-Jan Hartman <hartman at videolan dot org>
- * Eric Petit <titer@m0k.org>
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <errno.h> /* ENOMEM */
- #include <stdlib.h> /* free() */
- #include <string.h> /* strerror() */
- #include <vlc_keys.h>
- #include "intf.h"
- #include "vout.h"
- #include <OpenGL/OpenGL.h>
- #include <OpenGL/gl.h>
- /*****************************************************************************
- * VLCView interface
- *****************************************************************************/
- @interface VLCGLView : NSOpenGLView
- {
- vout_thread_t * p_vout;
- }
- - (id)initWithFrame: (NSRect) frame vout: (vout_thread_t*) p_vout;
- @end
- struct vout_sys_t
- {
- NSAutoreleasePool *o_pool;
- VLCWindow * o_window;
- VLCGLView * o_glview;
- vlc_bool_t b_saved_frame;
- NSRect s_frame;
- };
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- static int Init ( vout_thread_t * p_vout );
- static void End ( vout_thread_t * p_vout );
- static int Manage ( vout_thread_t * p_vout );
- static int Control( vout_thread_t *, int, va_list );
- static void Swap ( vout_thread_t * p_vout );
- int E_(OpenVideoGL) ( vlc_object_t * p_this )
- {
- vout_thread_t * p_vout = (vout_thread_t *) p_this;
- int i_timeout;
- vlc_value_t val;
- /* OpenGL interface disabled until
- * - the video on top var is properly working
- * - the escape key is working in fullscreen
- * - the green line is gone
- * - other problems?????
- */
- return( 1 );
- if( !CGDisplayUsesOpenGLAcceleration( kCGDirectMainDisplay ) )
- {
- msg_Warn( p_vout, "no hardware acceleration" );
- return( 1 );
- }
- msg_Dbg( p_vout, "display is Quartz Extreme accelerated" );
- p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
- if( p_vout->p_sys == NULL )
- {
- msg_Err( p_vout, "out of memory" );
- return( 1 );
- }
- memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
- /* Wait for a MacOS X interface to appear. Timeout is 2 seconds. */
- for( i_timeout = 20 ; i_timeout-- ; )
- {
- if( NSApp == NULL )
- {
- msleep( INTF_IDLE_SLEEP );
- }
- }
- if( NSApp == NULL )
- {
- /* No MacOS X intf, unable to communicate with MT */
- msg_Err( p_vout, "no MacOS X interface present" );
- return VLC_EGENERIC;
- }
- p_vout->pf_init = Init;
- p_vout->pf_end = End;
- p_vout->pf_manage = Manage;
- p_vout->pf_control= Control;
- p_vout->pf_swap = Swap;
- p_vout->p_sys->o_pool = [[NSAutoreleasePool alloc] init];
- var_Create( p_vout, "macosx-vdev", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Create( p_vout, "macosx-fill", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Create( p_vout, "macosx-stretch", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Create( p_vout, "macosx-opaqueness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
- /* Setup the menuitem for the multiple displays. Read the vlc preference (macosx-vdev) for the primary display */
- NSArray * o_screens = [NSScreen screens];
- if( [o_screens count] > 0 && var_Type( p_vout, "video-device" ) == 0 )
- {
- int i = 1;
- vlc_value_t val2, text;
- NSScreen * o_screen;
- var_Get( p_vout, "macosx-vdev", &val );
- var_Create( p_vout, "video-device", VLC_VAR_INTEGER |
- VLC_VAR_HASCHOICE );
- text.psz_string = _("Video device");
- var_Change( p_vout, "video-device", VLC_VAR_SETTEXT, &text, NULL );
-
- NSEnumerator * o_enumerator = [o_screens objectEnumerator];
- while( (o_screen = [o_enumerator nextObject]) != NULL )
- {
- char psz_temp[255];
- NSRect s_rect = [o_screen frame];
- snprintf( psz_temp, sizeof(psz_temp)/sizeof(psz_temp[0])-1,
- "%s %d (%dx%d)", _("Screen"), i,
- (int)s_rect.size.width, (int)s_rect.size.height );
- text.psz_string = psz_temp;
- val2.i_int = i;
- var_Change( p_vout, "video-device",
- VLC_VAR_ADDCHOICE, &val2, &text );
- if( ( i - 1 ) == val.i_int )
- {
- var_Set( p_vout, "video-device", val2 );
- }
- i++;
- }
- var_AddCallback( p_vout, "video-device", vout_VarCallback,
- NULL );
- val2.b_bool = VLC_TRUE;
- var_Set( p_vout, "intf-change", val2 );
- }
- /* Spawn window */
- p_vout->p_sys->o_window = [[VLCWindow alloc] initWithVout: p_vout
- frame: nil];
-
- /* Add OpenGL view */
- #define o_glview p_vout->p_sys->o_glview
- o_glview = [[VLCGLView alloc] initWithFrame:
- [p_vout->p_sys->o_window frame] vout: p_vout];
- [p_vout->p_sys->o_window setContentView: o_glview];
- [o_glview autorelease];
- #undef o_glview
- return VLC_SUCCESS;
- }
- int E_(CloseVideoGL) ( vlc_object_t * p_this )
- {
- vout_thread_t * p_vout = (vout_thread_t *) p_this;
- NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
- [p_vout->p_sys->o_window close];
- [o_pool release];
- return VLC_SUCCESS;
- }
- static int Init( vout_thread_t * p_vout )
- {
- [[p_vout->p_sys->o_glview openGLContext] makeCurrentContext];
- return VLC_SUCCESS;
- }
- static void End( vout_thread_t * p_vout )
- {
- [[p_vout->p_sys->o_glview openGLContext] makeCurrentContext];
- }
- static int Manage( vout_thread_t * p_vout )
- {
- if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
- {
- NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
-
- if( !p_vout->b_fullscreen )
- {
- /* Save window size and position */
- p_vout->p_sys->s_frame.size =
- [[p_vout->p_sys->o_window contentView] frame].size;
- p_vout->p_sys->s_frame.origin =
- [p_vout->p_sys->o_window frame].origin;
- p_vout->p_sys->b_saved_frame = VLC_TRUE;
- }
- [p_vout->p_sys->o_window close];
- p_vout->b_fullscreen = !p_vout->b_fullscreen;
- if( p_vout->p_sys->b_saved_frame )
- {
- p_vout->p_sys->o_window = [[VLCWindow alloc]
- initWithVout: p_vout frame: &p_vout->p_sys->s_frame];
- }
- else
- {
- p_vout->p_sys->o_window = [[VLCWindow alloc]
- initWithVout: p_vout frame: nil];
- }
- #define o_glview p_vout->p_sys->o_glview
- o_glview = [[VLCGLView alloc] initWithFrame: [p_vout->p_sys->o_window frame] vout: p_vout];
- [p_vout->p_sys->o_window setContentView: o_glview];
- [o_glview autorelease];
- [[o_glview openGLContext] makeCurrentContext];
- #undef o_glview
- [o_pool release];
- p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
- }
- [p_vout->p_sys->o_window manage];
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Control: control facility for the vout
- *****************************************************************************/
- static int Control( vout_thread_t *p_vout, int i_query, va_list args )
- {
- vlc_bool_t b_arg;
- switch( i_query )
- {
- case VOUT_SET_STAY_ON_TOP:
- b_arg = va_arg( args, vlc_bool_t );
- [p_vout->p_sys->o_window setOnTop: b_arg];
- return VLC_SUCCESS;
- case VOUT_CLOSE:
- case VOUT_REPARENT:
- default:
- return vout_vaControlDefault( p_vout, i_query, args );
- }
- }
- static void Swap( vout_thread_t * p_vout )
- {
- [[p_vout->p_sys->o_glview openGLContext] makeCurrentContext];
- if( [p_vout->p_sys->o_glview lockFocusIfCanDraw] )
- {
- glFlush();
- [p_vout->p_sys->o_glview unlockFocus];
- }
- }
- /*****************************************************************************
- * VLCGLView implementation
- *****************************************************************************/
- @implementation VLCGLView
- - (id) initWithFrame: (NSRect) frame vout: (vout_thread_t*) _p_vout
- {
- p_vout = _p_vout;
-
- NSOpenGLPixelFormatAttribute attribs[] =
- {
- NSOpenGLPFAAccelerated,
- NSOpenGLPFANoRecovery,
- NSOpenGLPFAColorSize, 24,
- NSOpenGLPFAAlphaSize, 8,
- NSOpenGLPFADepthSize, 24,
- NSOpenGLPFAWindow,
- 0
- };
- NSOpenGLPixelFormat * fmt = [[NSOpenGLPixelFormat alloc]
- initWithAttributes: attribs];
- if( !fmt )
- {
- msg_Warn( p_vout, "Cannot create NSOpenGLPixelFormat" );
- return nil;
- }
- self = [super initWithFrame:frame pixelFormat: fmt];
- [fmt release];
- [[self openGLContext] makeCurrentContext];
- [[self openGLContext] update];
- /* Swap buffers only during the vertical retrace of the monitor.
- http://developer.apple.com/documentation/GraphicsImaging/
- Conceptual/OpenGL/chap5/chapter_5_section_44.html */
- long params[] = { 1 };
- CGLSetParameter( CGLGetCurrentContext(), kCGLCPSwapInterval,
- params );
- return self;
- }
- - (void)reshape
- {
- int x, y;
- NSRect bounds = [self bounds];
- [[self openGLContext] makeCurrentContext];
- if( bounds.size.height * p_vout->render.i_aspect <
- bounds.size.width * VOUT_ASPECT_FACTOR )
- {
- x = bounds.size.height * p_vout->render.i_aspect / VOUT_ASPECT_FACTOR;
- y = bounds.size.height;
- }
- else
- {
- x = bounds.size.width;
- y = bounds.size.width * VOUT_ASPECT_FACTOR / p_vout->render.i_aspect;
- }
- glViewport( ( bounds.size.width - x ) / 2,
- ( bounds.size.height - y ) / 2, x, y );
- glClear( GL_COLOR_BUFFER_BIT );
- }
- - (void) drawRect: (NSRect) rect
- {
- [[self openGLContext] makeCurrentContext];
- glFlush();
- }
- @end