+++ /dev/null
-/*****************************************************************************
- * opengl.c: CAOpenGLLayer (Mac OS X) video output. Display a video output in
- * a layer. The layer will register itself to the drawable object stored in
- * the "drawable" variable.
- *****************************************************************************
- * Copyright (C) 2004-2009 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>
- * Pierre d'Herbemont <pdherbemont # videolan.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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-#include <errno.h> /* ENOMEM */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_vout.h>
-
-#import <QuartzCore/QuartzCore.h>
-#import <Cocoa/Cocoa.h>
-#import <OpenGL/OpenGL.h>
-
-/* On OS X, use GL_TEXTURE_RECTANGLE_EXT instead of GL_TEXTURE_2D.
- This allows sizes which are not powers of 2 */
-#define VLCGL_TARGET GL_TEXTURE_RECTANGLE_EXT
-
-/* OS X OpenGL supports YUV. Hehe. */
-#define VLCGL_FORMAT GL_YCBCR_422_APPLE
-#define VLCGL_TYPE GL_UNSIGNED_SHORT_8_8_APPLE
-
-/* RV32 */
-#define VLCGL_RGB_FORMAT GL_RGBA
-#define VLCGL_RGB_TYPE GL_UNSIGNED_BYTE
-
-/* YUY2 */
-#ifndef YCBCR_MESA
-#define YCBCR_MESA 0x8757
-#endif
-#ifndef UNSIGNED_SHORT_8_8_MESA
-#define UNSIGNED_SHORT_8_8_MESA 0x85BA
-#endif
-#define VLCGL_YUV_FORMAT YCBCR_MESA
-#define VLCGL_YUV_TYPE UNSIGNED_SHORT_8_8_MESA
-
-
-#ifndef GL_CLAMP_TO_EDGE
-# define GL_CLAMP_TO_EDGE 0x812F
-#endif
-
-@interface VLCVideoView : NSObject
-- (void)addVoutLayer:(CALayer *)layer;
-@end
-
-/*****************************************************************************
- * 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 InitTextures ( vout_thread_t * );
-
-vlc_module_begin ()
- set_shortname( "OpenGLLayer" )
- set_category( CAT_VIDEO )
- set_subcategory( SUBCAT_VIDEO_VOUT )
- set_description( N_("Core Animation OpenGL Layer (Mac OS X)") )
- set_capability( "video output", 20 )
- add_shortcut( "opengllayer" )
- set_callbacks( CreateVout, DestroyVout )
-vlc_module_end ()
-
-@interface VLCVoutLayer : CAOpenGLLayer {
- vout_thread_t * p_vout;
-}
-+ (id)layerWithVout:(vout_thread_t*)_p_vout;
-@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;
-
- uint8_t *pp_buffer[2]; /* one last rendered, one to be rendered */
- int i_index;
- bool b_frame_available;
-
- CGLContextObj glContext;
-
- int i_tex_width;
- int i_tex_height;
- GLuint p_textures[2];
-
- NSAutoreleasePool *autorealease_pool;
- VLCVoutLayer * o_layer;
- id o_cocoa_container;
-};
-
-/*****************************************************************************
- * 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 = calloc( 1, sizeof( vout_sys_t ) );
- if( p_sys == NULL )
- return VLC_EGENERIC;
-
- p_sys->i_tex_width = p_vout->fmt_in.i_width;
- p_sys->i_tex_height = p_vout->fmt_in.i_height;
-
- msg_Dbg( p_vout, "Texture size: %dx%d", p_sys->i_tex_width,
- p_sys->i_tex_height );
-
- 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;
-}
-
-/*****************************************************************************
- * 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;
- int i_pixel_pitch;
-
-#if ( defined( WORDS_BIGENDIAN ) && VLCGL_FORMAT == GL_YCBCR_422_APPLE ) || (VLCGL_FORMAT == YCBCR_MESA)
- p_vout->output.i_chroma = VLC_CODEC_YUYV;
- i_pixel_pitch = 2;
-#elif (VLCGL_FORMAT == GL_YCBCR_422_APPLE)
- p_vout->output.i_chroma = VLC_CODEC_UYVY;
- i_pixel_pitch = 2;
-#endif
-
- /* 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;
-
- /* We do need a drawable to work properly */
- p_vout->p_sys->o_cocoa_container = (id)var_CreateGetAddress( p_vout,
- "drawable-nsobject" );
-
- p_vout->fmt_out = p_vout->fmt_in;
- p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
-
- /* We know the chroma, allocate two buffer which will be used
- * directly by the decoder */
- int i;
- for( i = 0; i < 2; i++ )
- {
- p_sys->pp_buffer[i] =
- malloc( p_sys->i_tex_width * p_sys->i_tex_height * i_pixel_pitch );
- if( !p_sys->pp_buffer[i] )
- return VLC_EGENERIC;
- }
- p_sys->b_frame_available = false;
- p_sys->i_index = 0;
-
- p_vout->p_picture[0].i_planes = 1;
- p_vout->p_picture[0].p->p_pixels = p_sys->pp_buffer[p_sys->i_index];
- p_vout->p_picture[0].p->i_lines = p_vout->output.i_height;
- p_vout->p_picture[0].p->i_visible_lines = p_vout->output.i_height;
- p_vout->p_picture[0].p->i_pixel_pitch = i_pixel_pitch;
- p_vout->p_picture[0].p->i_pitch = p_vout->output.i_width *
- p_vout->p_picture[0].p->i_pixel_pitch;
- p_vout->p_picture[0].p->i_visible_pitch = p_vout->output.i_width *
- p_vout->p_picture[0].p->i_pixel_pitch;
-
- p_vout->p_picture[0].i_status = DESTROYED_PICTURE;
- p_vout->p_picture[0].i_type = DIRECT_PICTURE;
-
- PP_OUTPUTPICTURE[ 0 ] = &p_vout->p_picture[0];
-
- I_OUTPUTPICTURES = 1;
- p_sys->autorealease_pool = [[NSAutoreleasePool alloc] init];
-
- [VLCVoutLayer performSelectorOnMainThread:@selector(autoinitInVout:)
- withObject:[NSValue valueWithPointer:p_vout]
- waitUntilDone:YES];
-
- return 0;
-}
-
-/*****************************************************************************
- * End: terminate GLX video thread output method
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- p_vout->p_sys->b_frame_available = false;
-
- [p_vout->p_sys->o_cocoa_container performSelectorOnMainThread:@selector(removeVoutLayer:) withObject:p_vout->p_sys->o_layer waitUntilDone:YES];
-
- // Should be done automatically
- [p_sys->o_layer release];
- [p_sys->autorealease_pool release];
-
- /* Free the texture buffer*/
- free( p_sys->pp_buffer[0] );
- free( p_sys->pp_buffer[1] );
-}
-
-/*****************************************************************************
- * 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;
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * 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;
-
- @synchronized( p_sys->o_layer ) /* Make sure the p_sys->glContext isn't edited */
- {
- if( p_sys->glContext )
- {
- CGLLockContext(p_sys->glContext);
- CGLSetCurrentContext(p_sys->glContext);
- int i_new_index;
- i_new_index = ( p_sys->i_index + 1 ) & 1;
-
-
- /* Update the texture */
- glBindTexture( VLCGL_TARGET, p_sys->p_textures[i_new_index] );
- glTexSubImage2D( VLCGL_TARGET, 0, 0, 0,
- p_vout->fmt_out.i_width,
- p_vout->fmt_out.i_height,
- VLCGL_FORMAT, VLCGL_TYPE, p_sys->pp_buffer[i_new_index] );
-
- /* Bind to the previous texture for drawing */
- glBindTexture( VLCGL_TARGET, p_sys->p_textures[p_sys->i_index] );
-
- /* Switch buffers */
- p_sys->i_index = i_new_index;
- p_pic->p->p_pixels = p_sys->pp_buffer[p_sys->i_index];
- CGLUnlockContext(p_sys->glContext);
-
- p_sys->b_frame_available = true;
- }
- }
-
- /* Give a buffer where the image will be rendered */
- p_pic->p->p_pixels = p_sys->pp_buffer[p_sys->i_index];
-}
-
-/*****************************************************************************
- * 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;
-
- [p_sys->o_layer performSelectorOnMainThread:@selector(display)
- withObject:nil waitUntilDone:YES];
-}
-
-/*****************************************************************************
- * 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;
-}
-
-/*****************************************************************************
- * InitTextures
- *****************************************************************************/
-static int InitTextures( vout_thread_t *p_vout )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
- int i_index;
-
- glDeleteTextures( 2, p_sys->p_textures );
- glGenTextures( 2, p_sys->p_textures );
-
- for( i_index = 0; i_index < 2; i_index++ )
- {
- glBindTexture( VLCGL_TARGET, p_sys->p_textures[i_index] );
-
- /* Set the texture parameters */
- glTexParameterf( VLCGL_TARGET, GL_TEXTURE_PRIORITY, 1.0 );
-
- glTexParameteri( VLCGL_TARGET, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
- glTexParameteri( VLCGL_TARGET, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
-
- glTexParameteri( VLCGL_TARGET, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
- glTexParameteri( VLCGL_TARGET, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
-
- glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
-
- /* Note: It seems that we can't bypass those, and even
- * disabled they are used. They are the cause of the flickering */
-
- /* Tell the driver not to make a copy of the texture but to use
- our buffer */
- glEnable( GL_UNPACK_CLIENT_STORAGE_APPLE );
- glPixelStorei( GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE );
-
- /* Use AGP texturing */
- glTexParameteri( VLCGL_TARGET, GL_TEXTURE_STORAGE_HINT_APPLE, GL_STORAGE_SHARED_APPLE );
-
- /* Call glTexImage2D only once, and use glTexSubImage2D later */
- glTexImage2D( VLCGL_TARGET, 0, 4, p_sys->i_tex_width,
- p_sys->i_tex_height, 0, VLCGL_FORMAT, VLCGL_TYPE,
- p_sys->pp_buffer[i_index] );
- }
-
- return 0;
-}
-
-/*****************************************************************************
- * @implementation VLCVoutLayer
- */
-@implementation VLCVoutLayer
-
-/*****************************************************************************
- * autoinitInVout: Called from the video thread to create a layer.
- * The created layer is stored in the p_vout. We do that way because, cocoa
- * doesn't support layer creation on non-main thread.
- *****************************************************************************/
-+ (void)autoinitInVout:(NSValue*)arg
-{
- vout_thread_t * p_vout = [arg pointerValue];
- p_vout->p_sys->o_layer = [[VLCVoutLayer layerWithVout:p_vout] retain];
- [p_vout->p_sys->o_cocoa_container addVoutLayer:p_vout->p_sys->o_layer];
-}
-
-+ (id)layerWithVout:(vout_thread_t*)_p_vout
-{
- VLCVoutLayer* me = [[[self alloc] init] autorelease];
- if( me )
- {
- me->p_vout = _p_vout;
- me.asynchronous = NO;
- me.bounds = CGRectMake( 0.0, 0.0,
- (float)_p_vout->fmt_in.i_visible_width * _p_vout->fmt_in.i_sar_num,
- (float)_p_vout->fmt_in.i_visible_height * _p_vout->fmt_in.i_sar_den );
- }
- return me;
-}
-
-- (BOOL)canDrawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp
-{
- /* Only draw the frame if we have a frame that was previously rendered */
- return p_vout->p_sys->b_frame_available; // Flag is cleared by drawInCGLContext:pixelFormat:forLayerTime:displayTime:
-}
-
-- (void)drawInCGLContext:(CGLContextObj)glContext pixelFormat:(CGLPixelFormatObj)pixelFormat forLayerTime:(CFTimeInterval)timeInterval displayTime:(const CVTimeStamp *)timeStamp
-{
- CGLLockContext( glContext );
- CGLSetCurrentContext( glContext );
-
- float f_width, f_height, f_x, f_y;
-
- f_x = (float)p_vout->fmt_out.i_x_offset;
- f_y = (float)p_vout->fmt_out.i_y_offset;
- f_width = (float)p_vout->fmt_out.i_x_offset +
- (float)p_vout->fmt_out.i_visible_width;
- f_height = (float)p_vout->fmt_out.i_y_offset +
- (float)p_vout->fmt_out.i_visible_height;
-
- glClear( GL_COLOR_BUFFER_BIT );
-
- glEnable( VLCGL_TARGET );
- glBegin( GL_POLYGON );
- glTexCoord2f( f_x, f_y ); glVertex2f( -1.0, 1.0 );
- glTexCoord2f( f_width, f_y ); glVertex2f( 1.0, 1.0 );
- glTexCoord2f( f_width, f_height ); glVertex2f( 1.0, -1.0 );
- glTexCoord2f( f_x, f_height ); glVertex2f( -1.0, -1.0 );
- glEnd();
-
- glDisable( VLCGL_TARGET );
-
- glFlush();
-
- CGLUnlockContext( glContext );
-}
-
-- (CGLContextObj)copyCGLContextForPixelFormat:(CGLPixelFormatObj)pixelFormat
-{
- CGLContextObj context = [super copyCGLContextForPixelFormat:pixelFormat];
-
- CGLLockContext( context );
-
- CGLSetCurrentContext( context );
-
- /* Swap buffers only during the vertical retrace of the monitor.
- http://developer.apple.com/documentation/GraphicsImaging/
- Conceptual/OpenGL/chap5/chapter_5_section_44.html */
-
- GLint params = 1;
- CGLSetParameter( CGLGetCurrentContext(), kCGLCPSwapInterval,
- ¶ms );
-
- InitTextures( p_vout );
-
- glDisable( GL_BLEND );
- glDisable( GL_DEPTH_TEST );
- glDepthMask( GL_FALSE );
- glDisable( GL_CULL_FACE) ;
- glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
- glClear( GL_COLOR_BUFFER_BIT );
-
- CGLUnlockContext( context );
- @synchronized( self )
- {
- p_vout->p_sys->glContext = context;
- }
-
- return context;
-}
-
-- (void)releaseCGLContext:(CGLContextObj)glContext
-{
- @synchronized( self )
- {
- p_vout->p_sys->glContext = nil;
- }
-
- CGLLockContext( glContext );
- CGLSetCurrentContext( glContext );
-
- glDeleteTextures( 2, p_vout->p_sys->p_textures );
-
- CGLUnlockContext( glContext );
-}
-@end
projects / vlc / commitdiff