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/*****************************************************************************
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* glide.c : 3dfx Glide plugin for vlc
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*****************************************************************************
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* Copyright (C) 2000, 2001 VideoLAN
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* $Id: glide.c 6961 2004-03-05 17:34:23Z sam $
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* Authors: Samuel Hocevar <sam@zoy.org>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program 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
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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*****************************************************************************/
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#include <errno.h> /* ENOMEM */
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#include <stdlib.h> /* malloc(), free() */
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# include <conio.h> /* for glide ? */
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#include <linutil.h> /* Glide kbhit() and getch() */
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#define GLIDE_WIDTH 800
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#define GLIDE_HEIGHT 600
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#define GLIDE_BITS_PER_PLANE 16
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#define GLIDE_BYTES_PER_PIXEL 2
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/*****************************************************************************
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*****************************************************************************/
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static int Create ( vlc_object_t * );
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static void Destroy ( vlc_object_t * );
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static int Init ( vout_thread_t * );
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static void End ( vout_thread_t * );
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static int Manage ( vout_thread_t * );
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static void Display ( vout_thread_t *, picture_t * );
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static int OpenDisplay ( vout_thread_t * );
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static void CloseDisplay ( vout_thread_t * );
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/*****************************************************************************
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*****************************************************************************/
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set_description( _("3dfx Glide video output") );
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set_capability( "video output", 20 );
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add_shortcut( "3dfx" );
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set_callbacks( Create, Destroy );
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/*****************************************************************************
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* vout_sys_t: Glide video output method descriptor
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*****************************************************************************
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* This structure is part of the video output thread descriptor.
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* It describes the Glide specific properties of an output thread.
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*****************************************************************************/
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GrLfbInfo_t p_buffer_info; /* back buffer info */
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uint8_t * pp_buffer[2];
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/*****************************************************************************
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* Create: allocates Glide video thread output method
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*****************************************************************************
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* This function allocates and initializes a Glide vout method.
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*****************************************************************************/
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static int Create( vlc_object_t *p_this )
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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/* Allocate structure */
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p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
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if( p_vout->p_sys == NULL )
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msg_Err( p_vout, "out of memory" );
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/* Open and initialize device */
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if( OpenDisplay( p_vout ) )
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msg_Err( p_vout, "cannot open display" );
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free( p_vout->p_sys );
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p_vout->pf_init = Init;
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p_vout->pf_end = End;
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p_vout->pf_manage = Manage;
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p_vout->pf_render = NULL;
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p_vout->pf_display = Display;
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/*****************************************************************************
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* Init: initialize Glide video thread output method
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*****************************************************************************/
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static int Init( vout_thread_t *p_vout )
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/* FIXME: we don't set i_chroma !! */
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p_vout->output.i_rmask = 0xf800;
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p_vout->output.i_gmask = 0x07e0;
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p_vout->output.i_bmask = 0x001f;
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I_OUTPUTPICTURES = 0;
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/* Find an empty picture slot */
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for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
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if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
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p_pic = p_vout->p_picture + i_index;
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/* We know the chroma, allocate a buffer which will be used
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* directly by the decoder */
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p_pic->p->p_pixels = p_vout->p_sys->pp_buffer[p_vout->p_sys->i_index];
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p_pic->p->i_lines = GLIDE_HEIGHT;
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p_pic->p->i_pitch = p_vout->p_sys->p_buffer_info.strideInBytes;
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/*1024 * GLIDE_BYTES_PER_PIXEL*/
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p_pic->p->i_pixel_pitch = GLIDE_BYTES_PER_PIXEL;
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p_pic->p->i_visible_pitch = GLIDE_WIDTH * GLIDE_BYTES_PER_PIXEL;
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p_pic->i_status = DESTROYED_PICTURE;
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p_pic->i_type = DIRECT_PICTURE;
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PP_OUTPUTPICTURE[ 0 ] = p_pic;
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I_OUTPUTPICTURES = 1;
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/*****************************************************************************
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* End: terminate Glide video thread output method
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*****************************************************************************/
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static void End( vout_thread_t *p_vout )
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/*****************************************************************************
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* Destroy: destroy Glide video thread output method
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*****************************************************************************
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* Terminate an output method created by Create
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*****************************************************************************/
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static void Destroy( vlc_object_t *p_this )
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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CloseDisplay( p_vout );
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free( p_vout->p_sys );
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/*****************************************************************************
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* Manage: handle Glide events
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*****************************************************************************
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* This function should be called regularly by video output thread. It manages
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* console events. It returns a non null value on error.
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*****************************************************************************/
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static int Manage( vout_thread_t *p_vout )
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/* very Linux specific - see tlib.c in Glide for other versions */
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p_vout->p_vlc->b_die = 1;
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/*****************************************************************************
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* Display: displays previously rendered output
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*****************************************************************************/
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static void Display( vout_thread_t *p_vout, picture_t *p_pic )
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grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER );
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if ( grLfbLock(GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER,
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GR_LFBWRITEMODE_565, GR_ORIGIN_UPPER_LEFT, FXFALSE,
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&p_vout->p_sys->p_buffer_info) == FXFALSE )
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msg_Err( p_vout, "cannot take 3dfx back buffer lock" );
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/* following functions are local */
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/*****************************************************************************
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* OpenDisplay: open and initialize 3dfx device
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*****************************************************************************/
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static int OpenDisplay( vout_thread_t *p_vout )
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static char version[80];
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GrHwConfiguration hwconfig;
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GrScreenResolution_t resolution = GR_RESOLUTION_800x600;
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GrLfbInfo_t p_front_buffer_info; /* front buffer info */
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grGlideGetVersion( version );
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if( !grSstQueryHardware(&hwconfig) )
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msg_Err( p_vout, "cannot get 3dfx hardware config" );
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if( !grSstWinOpen( 0, resolution, GR_REFRESH_60Hz,
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GR_COLORFORMAT_ABGR, GR_ORIGIN_UPPER_LEFT, 2, 1 ) )
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msg_Err( p_vout, "cannot open 3dfx screen" );
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/* disable dithering */
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/*grDitherMode( GR_DITHER_DISABLE );*/
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/* clear both buffers */
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grRenderBuffer( GR_BUFFER_BACKBUFFER );
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grBufferClear( 0, 0, 0 );
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grRenderBuffer( GR_BUFFER_FRONTBUFFER );
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grBufferClear( 0, 0, 0 );
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grRenderBuffer( GR_BUFFER_BACKBUFFER );
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p_vout->p_sys->p_buffer_info.size = sizeof( GrLfbInfo_t );
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p_front_buffer_info.size = sizeof( GrLfbInfo_t );
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/* lock the buffers to find their adresses */
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if ( grLfbLock(GR_LFB_WRITE_ONLY, GR_BUFFER_FRONTBUFFER,
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GR_LFBWRITEMODE_565, GR_ORIGIN_UPPER_LEFT, FXFALSE,
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&p_front_buffer_info) == FXFALSE )
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msg_Err( p_vout, "cannot take 3dfx front buffer lock" );
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grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_FRONTBUFFER );
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if ( grLfbLock(GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER,
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GR_LFBWRITEMODE_565, GR_ORIGIN_UPPER_LEFT, FXFALSE,
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&p_vout->p_sys->p_buffer_info) == FXFALSE )
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msg_Err( p_vout, "cannot take 3dfx back buffer lock" );
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grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER );
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grBufferClear( 0, 0, 0 );
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p_vout->p_sys->pp_buffer[0] = p_vout->p_sys->p_buffer_info.lfbPtr;
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p_vout->p_sys->pp_buffer[1] = p_front_buffer_info.lfbPtr;
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p_vout->p_sys->i_index = 0;
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/*****************************************************************************
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* CloseDisplay: close and reset 3dfx device
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*****************************************************************************
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* Returns all resources allocated by OpenDisplay and restore the original
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* state of the device.
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*****************************************************************************/
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static void CloseDisplay( vout_thread_t *p_vout )
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/* unlock the hidden buffer */
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grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER );
added
removed
modules/video_output/glide.c
