1 /*****************************************************************************
2 * opengl.c: OpenGL video output
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
7 * Authors: Cyril Deguet <asmax@videolan.org>
8 * Gildas Bazin <gbazin@videolan.org>
9 * Eric Petit <titer@m0k.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
29 #include <errno.h> /* ENOMEM */
30 #include <stdlib.h> /* malloc(), free() */
37 #include <OpenGL/gl.h>
38 #include <OpenGL/glext.h>
40 /* On OS X, use GL_TEXTURE_RECTANGLE_EXT instead of GL_TEXTURE_2D.
41 This allows sizes which are not powers of 2 */
42 #define VLCGL_TARGET GL_TEXTURE_RECTANGLE_EXT
44 /* OS X OpenGL supports YUV. Hehe. */
45 #define VLCGL_FORMAT GL_YCBCR_422_APPLE
46 #define VLCGL_TYPE GL_UNSIGNED_SHORT_8_8_APPLE
50 #define VLCGL_TARGET GL_TEXTURE_2D
53 #ifndef GL_UNSIGNED_SHORT_5_6_5
54 #define GL_UNSIGNED_SHORT_5_6_5 0x8363
56 //#define VLCGL_RGB_FORMAT GL_RGB
57 //#define VLCGL_RGB_TYPE GL_UNSIGNED_SHORT_5_6_5
60 //#define VLCGL_RGB_FORMAT GL_RGB
61 //#define VLCGL_RGB_TYPE GL_UNSIGNED_BYTE
64 #define VLCGL_RGB_FORMAT GL_RGBA
65 #define VLCGL_RGB_TYPE GL_UNSIGNED_BYTE
69 #define YCBCR_MESA 0x8757
71 #ifndef UNSIGNED_SHORT_8_8_MESA
72 #define UNSIGNED_SHORT_8_8_MESA 0x85BA
74 #define VLCGL_YUV_FORMAT YCBCR_MESA
75 #define VLCGL_YUV_TYPE UNSIGNED_SHORT_8_8_MESA
77 /* Use RGB on Win32/GLX */
78 #define VLCGL_FORMAT VLCGL_RGB_FORMAT
79 #define VLCGL_TYPE VLCGL_RGB_TYPE
80 //#define VLCGL_FORMAT VLCGL_YUV_FORMAT
81 //#define VLCGL_TYPE VLCGL_YUV_TYPE
84 #ifndef GL_CLAMP_TO_EDGE
85 # define GL_CLAMP_TO_EDGE 0x812F
89 #define OPENGL_EFFECT_NONE 1
90 #define OPENGL_EFFECT_CUBE 2
91 #define OPENGL_EFFECT_TRANSPARENT_CUBE 4
93 /*****************************************************************************
95 *****************************************************************************/
96 static int CreateVout ( vlc_object_t * );
97 static void DestroyVout ( vlc_object_t * );
98 static int Init ( vout_thread_t * );
99 static void End ( vout_thread_t * );
100 static int Manage ( vout_thread_t * );
101 static void Render ( vout_thread_t *, picture_t * );
102 static void DisplayVideo ( vout_thread_t *, picture_t * );
103 static int Control ( vout_thread_t *, int, va_list );
105 static inline int GetAlignedSize( int );
107 static int InitTextures( vout_thread_t * );
108 static int SendEvents( vlc_object_t *, char const *,
109 vlc_value_t, vlc_value_t, void * );
111 /*****************************************************************************
113 *****************************************************************************/
114 #define SPEED_TEXT N_( "OpenGL cube rotation speed" )
115 /*****************************************************************************
117 *****************************************************************************/
118 #define SPEED_TEXT N_( "OpenGL cube rotation speed" )
119 #define SPEED_LONGTEXT N_( "If the OpenGL cube effect is enabled, this " \
120 "controls its rotation speed." )
122 #define EFFECT_TEXT N_("Select effect")
123 #define EFFECT_LONGTEXT N_( \
124 "Allows you to select different visual effects.")
126 static char *ppsz_effects[] = {
127 "none", "cube", "transparent-cube" };
128 static char *ppsz_effects_text[] = {
129 N_("None"), N_("Cube"), N_("Transparent Cube") };
132 set_shortname( "OpenGL" );
133 set_category( CAT_VIDEO );
134 set_subcategory( SUBCAT_VIDEO_VOUT );
135 set_description( _("OpenGL video output") );
137 set_capability( "video output", 200 );
139 set_capability( "video output", 20 );
141 add_shortcut( "opengl" );
142 add_float( "opengl-cube-speed", 2.0, NULL, SPEED_TEXT,
143 SPEED_LONGTEXT, VLC_TRUE );
144 set_callbacks( CreateVout, DestroyVout );
145 add_string( "opengl-effect", "none", NULL, EFFECT_TEXT,
146 EFFECT_LONGTEXT, VLC_FALSE );
147 change_string_list( ppsz_effects, ppsz_effects_text, 0 );
150 /*****************************************************************************
151 * vout_sys_t: video output method descriptor
152 *****************************************************************************
153 * This structure is part of the video output thread descriptor.
154 * It describes the OpenGL specific properties of the output thread.
155 *****************************************************************************/
158 vout_thread_t *p_vout;
160 uint8_t *pp_buffer[2];
164 GLuint p_textures[2];
171 /*****************************************************************************
172 * CreateVout: This function allocates and initializes the OpenGL vout method.
173 *****************************************************************************/
174 static int CreateVout( vlc_object_t *p_this )
176 vout_thread_t *p_vout = (vout_thread_t *)p_this;
179 /* Allocate structure */
180 p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
183 msg_Err( p_vout, "out of memory" );
187 var_Create( p_vout, "opengl-effect", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
191 p_sys->i_tex_width = p_vout->fmt_in.i_width;
192 p_sys->i_tex_height = p_vout->fmt_in.i_height;
194 /* A texture must have a size aligned on a power of 2 */
195 p_sys->i_tex_width = GetAlignedSize( p_vout->fmt_in.i_width );
196 p_sys->i_tex_height = GetAlignedSize( p_vout->fmt_in.i_height );
199 msg_Dbg( p_vout, "Texture size: %dx%d", p_sys->i_tex_width,
200 p_sys->i_tex_height );
204 (vout_thread_t *)vlc_object_create( p_this, VLC_OBJECT_OPENGL );
205 if( p_sys->p_vout == NULL )
207 msg_Err( p_vout, "out of memory" );
210 vlc_object_attach( p_sys->p_vout, p_this );
212 p_sys->p_vout->i_window_width = p_vout->i_window_width;
213 p_sys->p_vout->i_window_height = p_vout->i_window_height;
214 p_sys->p_vout->b_fullscreen = p_vout->b_fullscreen;
215 p_sys->p_vout->render.i_width = p_vout->render.i_width;
216 p_sys->p_vout->render.i_height = p_vout->render.i_height;
217 p_sys->p_vout->render.i_aspect = p_vout->render.i_aspect;
218 p_sys->p_vout->fmt_render = p_vout->fmt_render;
219 p_sys->p_vout->fmt_in = p_vout->fmt_in;
220 p_sys->p_vout->b_scale = p_vout->b_scale;
221 p_sys->p_vout->i_alignment = p_vout->i_alignment;
223 p_sys->p_vout->p_module =
224 module_Need( p_sys->p_vout, "opengl provider", NULL, 0 );
225 if( p_sys->p_vout->p_module == NULL )
227 msg_Warn( p_vout, "No OpenGL provider found" );
228 vlc_object_detach( p_sys->p_vout );
229 vlc_object_destroy( p_sys->p_vout );
233 p_sys->f_speed = var_CreateGetFloat( p_vout, "opengl-cube-speed" );
235 p_vout->pf_init = Init;
236 p_vout->pf_end = End;
237 p_vout->pf_manage = Manage;
238 p_vout->pf_render = Render;
239 p_vout->pf_display = DisplayVideo;
240 p_vout->pf_control = Control;
242 /* Forward events from the opengl provider */
243 var_Create( p_sys->p_vout, "mouse-x", VLC_VAR_INTEGER );
244 var_Create( p_sys->p_vout, "mouse-y", VLC_VAR_INTEGER );
245 var_Create( p_sys->p_vout, "mouse-moved", VLC_VAR_BOOL );
246 var_Create( p_sys->p_vout, "mouse-clicked", VLC_VAR_INTEGER );
247 var_Create( p_sys->p_vout, "mouse-button-down", VLC_VAR_INTEGER );
248 var_Create( p_sys->p_vout, "video-on-top",
249 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
251 var_AddCallback( p_sys->p_vout, "mouse-x", SendEvents, p_vout );
252 var_AddCallback( p_sys->p_vout, "mouse-y", SendEvents, p_vout );
253 var_AddCallback( p_sys->p_vout, "mouse-moved", SendEvents, p_vout );
254 var_AddCallback( p_sys->p_vout, "mouse-clicked", SendEvents, p_vout );
255 var_AddCallback( p_sys->p_vout, "mouse-button-down", SendEvents, p_vout );
260 /*****************************************************************************
261 * Init: initialize the OpenGL video thread output method
262 *****************************************************************************/
263 static int Init( vout_thread_t *p_vout )
265 vout_sys_t *p_sys = p_vout->p_sys;
269 p_sys->p_vout->pf_init( p_sys->p_vout );
271 /* TODO: We use YCbCr on Mac which is Y422, but on OSX it seems to == YUY2. Verify */
272 #if defined( __ppc__ ) || defined( __ppc64__ ) || (VLCGL_FORMAT == YCBCR_MESA)
273 p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
276 #elif (VLCGL_FORMAT == GL_YCBCR_422_APPLE)
277 p_vout->output.i_chroma = VLC_FOURCC('Y','4','2','2');
280 #elif VLCGL_FORMAT == GL_RGB
281 # if VLCGL_TYPE == GL_UNSIGNED_BYTE
282 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
283 p_vout->output.i_rmask = 0x000000ff;
284 p_vout->output.i_gmask = 0x0000ff00;
285 p_vout->output.i_bmask = 0x00ff0000;
288 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
289 p_vout->output.i_rmask = 0xf800;
290 p_vout->output.i_gmask = 0x07e0;
291 p_vout->output.i_bmask = 0x001f;
295 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
296 p_vout->output.i_rmask = 0x000000ff;
297 p_vout->output.i_gmask = 0x0000ff00;
298 p_vout->output.i_bmask = 0x00ff0000;
302 /* Since OpenGL can do rescaling for us, stick to the default
303 * coordinates and aspect. */
304 p_vout->output.i_width = p_vout->render.i_width;
305 p_vout->output.i_height = p_vout->render.i_height;
306 p_vout->output.i_aspect = p_vout->render.i_aspect;
308 p_vout->fmt_out = p_vout->fmt_in;
309 p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
311 /* We know the chroma, allocate one buffer which will be used
312 * directly by the decoder */
313 p_sys->pp_buffer[0] =
314 malloc( p_sys->i_tex_width * p_sys->i_tex_height * i_pixel_pitch );
315 if( !p_sys->pp_buffer[0] )
317 msg_Err( p_vout, "Out of memory" );
320 p_sys->pp_buffer[1] =
321 malloc( p_sys->i_tex_width * p_sys->i_tex_height * i_pixel_pitch );
322 if( !p_sys->pp_buffer[1] )
324 msg_Err( p_vout, "Out of memory" );
328 p_vout->p_picture[0].i_planes = 1;
329 p_vout->p_picture[0].p->p_pixels = p_sys->pp_buffer[0];
330 p_vout->p_picture[0].p->i_lines = p_vout->output.i_height;
331 p_vout->p_picture[0].p->i_visible_lines = p_vout->output.i_height;
332 p_vout->p_picture[0].p->i_pixel_pitch = i_pixel_pitch;
333 p_vout->p_picture[0].p->i_pitch = p_vout->output.i_width *
334 p_vout->p_picture[0].p->i_pixel_pitch;
335 p_vout->p_picture[0].p->i_visible_pitch = p_vout->output.i_width *
336 p_vout->p_picture[0].p->i_pixel_pitch;
338 p_vout->p_picture[0].i_status = DESTROYED_PICTURE;
339 p_vout->p_picture[0].i_type = DIRECT_PICTURE;
341 PP_OUTPUTPICTURE[ 0 ] = &p_vout->p_picture[0];
343 I_OUTPUTPICTURES = 1;
345 if( p_sys->p_vout->pf_lock &&
346 p_sys->p_vout->pf_lock( p_sys->p_vout ) )
348 msg_Warn( p_vout, "could not lock OpenGL provider" );
352 InitTextures( p_vout );
355 glDisable(GL_DEPTH_TEST);
356 glDepthMask(GL_FALSE);
357 glDisable(GL_CULL_FACE);
358 glClear( GL_COLOR_BUFFER_BIT );
360 /* Check if the user asked for useless visual effects */
361 var_Get( p_vout, "opengl-effect", &val );
362 if( !val.psz_string || !strcmp( val.psz_string, "none" ))
364 p_sys->i_effect = OPENGL_EFFECT_NONE;
366 else if( !strcmp( val.psz_string, "cube" ) )
368 p_sys->i_effect = OPENGL_EFFECT_CUBE;
370 glEnable( GL_CULL_FACE);
371 //glEnable( GL_DEPTH_TEST );
373 else if( !strcmp( val.psz_string, "transparent-cube" ) )
375 p_sys->i_effect = OPENGL_EFFECT_TRANSPARENT_CUBE;
377 glDisable( GL_DEPTH_TEST );
378 glEnable( GL_BLEND );
379 glBlendFunc( GL_SRC_ALPHA, GL_ONE );
383 msg_Warn( p_vout, "no valid opengl effect provided, using "
385 p_sys->i_effect = OPENGL_EFFECT_NONE;
387 if( val.psz_string ) free( val.psz_string );
389 if( p_sys->i_effect & ( OPENGL_EFFECT_CUBE |
390 OPENGL_EFFECT_TRANSPARENT_CUBE ) )
392 /* Set the perpective */
393 glMatrixMode( GL_PROJECTION );
395 glFrustum( -1.0, 1.0, -1.0, 1.0, 3.0, 20.0 );
396 glMatrixMode( GL_MODELVIEW );
398 glTranslatef( 0.0, 0.0, - 5.0 );
401 if( p_sys->p_vout->pf_unlock )
403 p_sys->p_vout->pf_unlock( p_sys->p_vout );
409 /*****************************************************************************
410 * End: terminate GLX video thread output method
411 *****************************************************************************/
412 static void End( vout_thread_t *p_vout )
414 vout_sys_t *p_sys = p_vout->p_sys;
416 if( p_sys->p_vout->pf_lock &&
417 p_sys->p_vout->pf_lock( p_sys->p_vout ) )
419 msg_Warn( p_vout, "could not lock OpenGL provider" );
426 if( p_sys->p_vout->pf_unlock )
428 p_sys->p_vout->pf_unlock( p_sys->p_vout );
432 /*****************************************************************************
433 * Destroy: destroy GLX video thread output method
434 *****************************************************************************
435 * Terminate an output method created by CreateVout
436 *****************************************************************************/
437 static void DestroyVout( vlc_object_t *p_this )
439 vout_thread_t *p_vout = (vout_thread_t *)p_this;
440 vout_sys_t *p_sys = p_vout->p_sys;
442 module_Unneed( p_sys->p_vout, p_sys->p_vout->p_module );
443 vlc_object_detach( p_sys->p_vout );
444 vlc_object_destroy( p_sys->p_vout );
446 /* Free the texture buffer*/
447 if( p_sys->pp_buffer[0] ) free( p_sys->pp_buffer[0] );
448 if( p_sys->pp_buffer[1] ) free( p_sys->pp_buffer[1] );
453 /*****************************************************************************
454 * Manage: handle Sys events
455 *****************************************************************************
456 * This function should be called regularly by video output thread. It returns
457 * a non null value if an error occurred.
458 *****************************************************************************/
459 static int Manage( vout_thread_t *p_vout )
461 vout_sys_t *p_sys = p_vout->p_sys;
462 int i_ret, i_fullscreen_change;
464 i_fullscreen_change = ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE );
466 p_vout->fmt_out.i_x_offset = p_sys->p_vout->fmt_in.i_x_offset =
467 p_vout->fmt_in.i_x_offset;
468 p_vout->fmt_out.i_y_offset = p_sys->p_vout->fmt_in.i_y_offset =
469 p_vout->fmt_in.i_y_offset;
470 p_vout->fmt_out.i_visible_width = p_sys->p_vout->fmt_in.i_visible_width =
471 p_vout->fmt_in.i_visible_width;
472 p_vout->fmt_out.i_visible_height = p_sys->p_vout->fmt_in.i_visible_height =
473 p_vout->fmt_in.i_visible_height;
474 p_vout->fmt_out.i_aspect = p_sys->p_vout->fmt_in.i_aspect =
475 p_vout->fmt_in.i_aspect;
476 p_vout->fmt_out.i_sar_num = p_sys->p_vout->fmt_in.i_sar_num =
477 p_vout->fmt_in.i_sar_num;
478 p_vout->fmt_out.i_sar_den = p_sys->p_vout->fmt_in.i_sar_den =
479 p_vout->fmt_in.i_sar_den;
480 p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
482 p_sys->p_vout->i_changes = p_vout->i_changes;
483 i_ret = p_sys->p_vout->pf_manage( p_sys->p_vout );
484 p_vout->i_changes = p_sys->p_vout->i_changes;
487 if( p_sys->p_vout->pf_lock &&
488 p_sys->p_vout->pf_lock( p_sys->p_vout ) )
490 msg_Warn( p_vout, "could not lock OpenGL provider" );
494 /* On OS X, we create the window and the GL view when entering
495 fullscreen - the textures have to be inited again */
496 if( i_fullscreen_change )
498 InitTextures( p_vout );
500 switch( p_sys->i_effect )
502 case OPENGL_EFFECT_CUBE:
503 glEnable( GL_CULL_FACE );
506 case OPENGL_EFFECT_TRANSPARENT_CUBE:
507 glDisable( GL_DEPTH_TEST );
508 glEnable( GL_BLEND );
509 glBlendFunc( GL_SRC_ALPHA, GL_ONE );
513 if( p_sys->i_effect & ( OPENGL_EFFECT_CUBE |
514 OPENGL_EFFECT_TRANSPARENT_CUBE ) )
516 /* Set the perpective */
517 glMatrixMode( GL_PROJECTION );
519 glFrustum( -1.0, 1.0, -1.0, 1.0, 3.0, 20.0 );
520 glMatrixMode( GL_MODELVIEW );
522 glTranslatef( 0.0, 0.0, - 5.0 );
526 if( p_sys->p_vout->pf_unlock )
528 p_sys->p_vout->pf_unlock( p_sys->p_vout );
535 /*****************************************************************************
536 * Render: render previously calculated output
537 *****************************************************************************/
538 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
540 vout_sys_t *p_sys = p_vout->p_sys;
542 /* On Win32/GLX, we do this the usual way:
543 + Fill the buffer with new content,
544 + Reload the texture,
547 On OS X with VRAM or AGP texturing, the order has to be:
548 + Reload the texture,
549 + Fill the buffer with new content,
552 (Thanks to gcc from the Arstechnica forums for the tip)
554 Therefore, we have to use two buffers and textures. On Win32/GLX,
555 we reload the texture to be displayed and use it right away. On
556 OS X, we first render, then reload the texture to be used next
559 if( p_sys->p_vout->pf_lock &&
560 p_sys->p_vout->pf_lock( p_sys->p_vout ) )
562 msg_Warn( p_vout, "could not lock OpenGL provider" );
568 i_new_index = ( p_sys->i_index + 1 ) & 1;
571 /* Update the texture */
572 glBindTexture( VLCGL_TARGET, p_sys->p_textures[i_new_index] );
573 glTexSubImage2D( VLCGL_TARGET, 0, 0, 0,
574 p_vout->fmt_out.i_width,
575 p_vout->fmt_out.i_height,
576 VLCGL_FORMAT, VLCGL_TYPE, p_sys->pp_buffer[i_new_index] );
578 /* Bind to the previous texture for drawing */
579 glBindTexture( VLCGL_TARGET, p_sys->p_textures[p_sys->i_index] );
582 p_sys->i_index = i_new_index;
583 p_pic->p->p_pixels = p_sys->pp_buffer[p_sys->i_index];
586 /* Update the texture */
587 glTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0,
588 p_vout->fmt_out.i_width,
589 p_vout->fmt_out.i_height,
590 VLCGL_FORMAT, VLCGL_TYPE, p_sys->pp_buffer[0] );
593 if( p_sys->p_vout->pf_unlock )
595 p_sys->p_vout->pf_unlock( p_sys->p_vout );
599 /*****************************************************************************
600 * DisplayVideo: displays previously rendered output
601 *****************************************************************************/
602 static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
604 vout_sys_t *p_sys = p_vout->p_sys;
605 float f_width, f_height, f_x, f_y;
607 if( p_sys->p_vout->pf_lock &&
608 p_sys->p_vout->pf_lock( p_sys->p_vout ) )
610 msg_Warn( p_vout, "could not lock OpenGL provider" );
614 /* glTexCoord works differently with GL_TEXTURE_2D and
615 GL_TEXTURE_RECTANGLE_EXT */
617 f_x = (float)p_vout->fmt_out.i_x_offset;
618 f_y = (float)p_vout->fmt_out.i_y_offset;
619 f_width = (float)p_vout->fmt_out.i_x_offset +
620 (float)p_vout->fmt_out.i_visible_width;
621 f_height = (float)p_vout->fmt_out.i_y_offset +
622 (float)p_vout->fmt_out.i_visible_height;
624 f_x = (float)p_vout->fmt_out.i_x_offset / p_sys->i_tex_width;
625 f_y = (float)p_vout->fmt_out.i_y_offset / p_sys->i_tex_height;
626 f_width = ( (float)p_vout->fmt_out.i_x_offset +
627 p_vout->fmt_out.i_visible_width ) / p_sys->i_tex_width;
628 f_height = ( (float)p_vout->fmt_out.i_y_offset +
629 p_vout->fmt_out.i_visible_height ) / p_sys->i_tex_height;
632 /* Why drawing here and not in Render()? Because this way, the
633 OpenGL providers can call pf_display to force redraw. Currently,
634 the OS X provider uses it to get a smooth window resizing */
636 glClear( GL_COLOR_BUFFER_BIT );
638 if( p_sys->i_effect == OPENGL_EFFECT_NONE )
640 glEnable( VLCGL_TARGET );
641 glBegin( GL_POLYGON );
642 glTexCoord2f( f_x, f_y ); glVertex2f( -1.0, 1.0 );
643 glTexCoord2f( f_width, f_y ); glVertex2f( 1.0, 1.0 );
644 glTexCoord2f( f_width, f_height ); glVertex2f( 1.0, -1.0 );
645 glTexCoord2f( f_x, f_height ); glVertex2f( -1.0, -1.0 );
650 glRotatef( 0.5 * p_sys->f_speed , 0.3, 0.5, 0.7 );
652 glEnable( VLCGL_TARGET );
656 glTexCoord2f( f_x, f_y ); glVertex3f( - 1.0, 1.0, 1.0 );
657 glTexCoord2f( f_x, f_height ); glVertex3f( - 1.0, - 1.0, 1.0 );
658 glTexCoord2f( f_width, f_height ); glVertex3f( 1.0, - 1.0, 1.0 );
659 glTexCoord2f( f_width, f_y ); glVertex3f( 1.0, 1.0, 1.0 );
662 glTexCoord2f( f_x, f_y ); glVertex3f( - 1.0, 1.0, - 1.0 );
663 glTexCoord2f( f_x, f_height ); glVertex3f( - 1.0, - 1.0, - 1.0 );
664 glTexCoord2f( f_width, f_height ); glVertex3f( - 1.0, - 1.0, 1.0 );
665 glTexCoord2f( f_width, f_y ); glVertex3f( - 1.0, 1.0, 1.0 );
668 glTexCoord2f( f_x, f_y ); glVertex3f( 1.0, 1.0, - 1.0 );
669 glTexCoord2f( f_x, f_height ); glVertex3f( 1.0, - 1.0, - 1.0 );
670 glTexCoord2f( f_width, f_height ); glVertex3f( - 1.0, - 1.0, - 1.0 );
671 glTexCoord2f( f_width, f_y ); glVertex3f( - 1.0, 1.0, - 1.0 );
674 glTexCoord2f( f_x, f_y ); glVertex3f( 1.0, 1.0, 1.0 );
675 glTexCoord2f( f_x, f_height ); glVertex3f( 1.0, - 1.0, 1.0 );
676 glTexCoord2f( f_width, f_height ); glVertex3f( 1.0, - 1.0, - 1.0 );
677 glTexCoord2f( f_width, f_y ); glVertex3f( 1.0, 1.0, - 1.0 );
680 glTexCoord2f( f_x, f_y ); glVertex3f( - 1.0, 1.0, - 1.0 );
681 glTexCoord2f( f_x, f_height ); glVertex3f( - 1.0, 1.0, 1.0 );
682 glTexCoord2f( f_width, f_height ); glVertex3f( 1.0, 1.0, 1.0 );
683 glTexCoord2f( f_width, f_y ); glVertex3f( 1.0, 1.0, - 1.0 );
686 glTexCoord2f( f_x, f_y ); glVertex3f( - 1.0, - 1.0, 1.0 );
687 glTexCoord2f( f_x, f_height ); glVertex3f( - 1.0, - 1.0, - 1.0 );
688 glTexCoord2f( f_width, f_height ); glVertex3f( 1.0, - 1.0, - 1.0 );
689 glTexCoord2f( f_width, f_y ); glVertex3f( 1.0, - 1.0, 1.0 );
693 glDisable( VLCGL_TARGET );
695 p_sys->p_vout->pf_swap( p_sys->p_vout );
697 if( p_sys->p_vout->pf_unlock )
699 p_sys->p_vout->pf_unlock( p_sys->p_vout );
703 int GetAlignedSize( int i_size )
705 /* Return the nearest power of 2 */
707 while( i_result < i_size )
714 /*****************************************************************************
715 * Control: control facility for the vout
716 *****************************************************************************/
717 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
719 vout_sys_t *p_sys = p_vout->p_sys;
724 return vout_vaControlDefault( p_vout, i_query, args );
727 if( p_sys->p_vout->pf_control )
728 return p_sys->p_vout->pf_control( p_sys->p_vout, i_query, args );
730 return vout_vaControlDefault( p_vout, i_query, args );
734 static int InitTextures( vout_thread_t *p_vout )
736 vout_sys_t *p_sys = p_vout->p_sys;
739 glDeleteTextures( 2, p_sys->p_textures );
740 glGenTextures( 2, p_sys->p_textures );
742 for( i_index = 0; i_index < 2; i_index++ )
744 glBindTexture( VLCGL_TARGET, p_sys->p_textures[i_index] );
746 /* Set the texture parameters */
747 glTexParameterf( VLCGL_TARGET, GL_TEXTURE_PRIORITY, 1.0 );
749 glTexParameteri( VLCGL_TARGET, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
750 glTexParameteri( VLCGL_TARGET, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
752 glTexParameteri( VLCGL_TARGET, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
753 glTexParameteri( VLCGL_TARGET, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
755 glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
758 /* Tell the driver not to make a copy of the texture but to use
760 glEnable( GL_UNPACK_CLIENT_STORAGE_APPLE );
761 glPixelStorei( GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE );
764 /* Use VRAM texturing */
765 glTexParameteri( VLCGL_TARGET, GL_TEXTURE_STORAGE_HINT_APPLE,
766 GL_STORAGE_CACHED_APPLE );
768 /* Use AGP texturing */
769 glTexParameteri( VLCGL_TARGET, GL_TEXTURE_STORAGE_HINT_APPLE,
770 GL_STORAGE_SHARED_APPLE );
774 /* Call glTexImage2D only once, and use glTexSubImage2D later */
775 glTexImage2D( VLCGL_TARGET, 0, 3, p_sys->i_tex_width,
776 p_sys->i_tex_height, 0, VLCGL_FORMAT, VLCGL_TYPE,
777 p_sys->pp_buffer[i_index] );
783 /*****************************************************************************
784 * SendEvents: forward mouse and keyboard events to the parent p_vout
785 *****************************************************************************/
786 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
787 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
789 return var_Set( (vlc_object_t *)_p_vout, psz_var, newval );