* glide.c : 3dfx Glide plugin for vlc
*****************************************************************************
* Copyright (C) 2000, 2001 VideoLAN
- * $Id: glide.c,v 1.7 2001/11/28 15:08:05 massiot Exp $
+ * $Id: glide.c,v 1.16 2002/07/20 18:01:42 sam Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
-#define MODULE_NAME glide
-#include "modules_inner.h"
-
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include "defs.h"
-
+#include <errno.h> /* ENOMEM */
#include <stdlib.h> /* malloc(), free() */
#include <string.h>
-#include "config.h"
-#include "common.h" /* boolean_t, byte_t */
-#include "intf_msg.h"
-#include "threads.h"
-#include "mtime.h"
+#include <vlc/vlc.h>
+#include <vlc/intf.h>
+#include <vlc/vout.h>
-#include "video.h"
-#include "video_output.h"
+#ifndef __linux__
+# include <conio.h> /* for glide ? */
+#endif
+#include <glide.h>
+#include <linutil.h> /* Glide kbhit() and getch() */
-#include "modules.h"
-#include "modules_export.h"
+#define GLIDE_WIDTH 800
+#define GLIDE_HEIGHT 600
+#define GLIDE_BITS_PER_PLANE 16
+#define GLIDE_BYTES_PER_PIXEL 2
/*****************************************************************************
- * Capabilities defined in the other files.
+ * Local prototypes.
*****************************************************************************/
-void _M( vout_getfunctions )( function_list_t * p_function_list );
+static void vout_getfunctions( function_list_t * p_function_list );
+
+static int vout_Create ( vout_thread_t * );
+static int vout_Init ( vout_thread_t * );
+static void vout_End ( vout_thread_t * );
+static void vout_Destroy ( vout_thread_t * );
+static int vout_Manage ( vout_thread_t * );
+static void vout_Render ( vout_thread_t *, picture_t * );
+static void vout_Display ( vout_thread_t *, picture_t * );
+
+static int OpenDisplay ( vout_thread_t * );
+static void CloseDisplay ( vout_thread_t * );
/*****************************************************************************
* Building configuration tree
*****************************************************************************/
MODULE_CONFIG_START
-ADD_WINDOW( "Configuration for Glide module" )
- ADD_COMMENT( "For now, the Glide module cannot be configured" )
MODULE_CONFIG_STOP
MODULE_INIT_START
- p_module->i_capabilities = MODULE_CAPABILITY_NULL
- | MODULE_CAPABILITY_VOUT;
- p_module->psz_longname = "3dfx Glide module";
+ SET_DESCRIPTION( _("3dfx Glide module") )
+ ADD_CAPABILITY( VOUT, 20 )
+ ADD_SHORTCUT( "3dfx" )
MODULE_INIT_STOP
MODULE_ACTIVATE_START
- _M( vout_getfunctions )( &p_module->p_functions->vout );
+ vout_getfunctions( &p_module->p_functions->vout );
MODULE_ACTIVATE_STOP
MODULE_DEACTIVATE_START
MODULE_DEACTIVATE_STOP
+/*****************************************************************************
+ * vout_sys_t: Glide video output method descriptor
+ *****************************************************************************
+ * This structure is part of the video output thread descriptor.
+ * It describes the Glide specific properties of an output thread.
+ *****************************************************************************/
+struct vout_sys_t
+{
+ GrLfbInfo_t p_buffer_info; /* back buffer info */
+
+ u8* pp_buffer[2];
+ int i_index;
+};
+
+/*****************************************************************************
+ * Functions exported as capabilities. They are declared as static so that
+ * we don't pollute the namespace too much.
+ *****************************************************************************/
+void _M( vout_getfunctions )( function_list_t * p_function_list )
+{
+ p_function_list->functions.vout.pf_create = vout_Create;
+ p_function_list->functions.vout.pf_init = vout_Init;
+ p_function_list->functions.vout.pf_end = vout_End;
+ p_function_list->functions.vout.pf_destroy = vout_Destroy;
+ p_function_list->functions.vout.pf_manage = vout_Manage;
+ p_function_list->functions.vout.pf_render = vout_Render;
+ p_function_list->functions.vout.pf_display = vout_Display;
+}
+
+/*****************************************************************************
+ * vout_Create: allocates Glide video thread output method
+ *****************************************************************************
+ * This function allocates and initializes a Glide vout method.
+ *****************************************************************************/
+int vout_Create( vout_thread_t *p_vout )
+{
+ /* Allocate structure */
+ p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
+ if( p_vout->p_sys == NULL )
+ {
+ msg_Err( p_vout, "out of memory" );
+ return( 1 );
+ }
+
+ /* Open and initialize device */
+ if( OpenDisplay( p_vout ) )
+ {
+ msg_Err( p_vout, "cannot open display" );
+ free( p_vout->p_sys );
+ return( 1 );
+ }
+
+ return( 0 );
+}
+
+/*****************************************************************************
+ * vout_Init: initialize Glide video thread output method
+ *****************************************************************************/
+int vout_Init( vout_thread_t *p_vout )
+{
+ int i_index;
+ picture_t *p_pic;
+
+ /* FIXME: we don't set i_chroma !! */
+ p_vout->output.i_rmask = 0xf800;
+ p_vout->output.i_gmask = 0x07e0;
+ p_vout->output.i_bmask = 0x001f;
+
+ I_OUTPUTPICTURES = 0;
+
+ p_pic = NULL;
+
+ /* Find an empty picture slot */
+ for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
+ {
+ if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
+ {
+ p_pic = p_vout->p_picture + i_index;
+ break;
+ }
+ }
+
+ if( p_pic == NULL )
+ {
+ return -1;
+ }
+
+ /* We know the chroma, allocate a buffer which will be used
+ * directly by the decoder */
+ p_pic->i_planes = 1;
+
+ p_pic->p->p_pixels = p_vout->p_sys->pp_buffer[p_vout->p_sys->i_index];
+ p_pic->p->i_pixel_bytes = GLIDE_BYTES_PER_PIXEL;
+ p_pic->p->i_lines = GLIDE_HEIGHT;
+
+ p_pic->p->b_margin = 1;
+ p_pic->p->b_hidden = 1;
+ p_pic->p->i_visible_bytes = GLIDE_WIDTH * GLIDE_BYTES_PER_PIXEL;
+ p_pic->p->i_pitch = p_vout->p_sys->p_buffer_info.strideInBytes;
+ /*1024 * GLIDE_BYTES_PER_PIXEL*/
+
+ p_pic->i_status = DESTROYED_PICTURE;
+ p_pic->i_type = DIRECT_PICTURE;
+
+ PP_OUTPUTPICTURE[ 0 ] = p_pic;
+
+ I_OUTPUTPICTURES = 1;
+
+ return 0;
+}
+
+/*****************************************************************************
+ * vout_End: terminate Glide video thread output method
+ *****************************************************************************/
+void vout_End( vout_thread_t *p_vout )
+{
+ ;
+}
+
+/*****************************************************************************
+ * vout_Destroy: destroy Glide video thread output method
+ *****************************************************************************
+ * Terminate an output method created by vout_CreateOutputMethod
+ *****************************************************************************/
+void vout_Destroy( vout_thread_t *p_vout )
+{
+ CloseDisplay( p_vout );
+ free( p_vout->p_sys );
+}
+
+/*****************************************************************************
+ * vout_Manage: handle Glide events
+ *****************************************************************************
+ * This function should be called regularly by video output thread. It manages
+ * console events. It returns a non null value on error.
+ *****************************************************************************/
+int vout_Manage( vout_thread_t *p_vout )
+{
+ int buf;
+
+ /* very Linux specific - see tlib.c in Glide for other versions */
+ while( kbhit() )
+ {
+ buf = getch();
+
+ switch( (char)buf )
+ {
+ case 'q':
+ p_vout->p_vlc->b_die = 1;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/*****************************************************************************
+ * vout_Render: renders previously calculated output
+ *****************************************************************************/
+void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
+{
+ ;
+}
+
+/*****************************************************************************
+ * vout_Display: displays previously rendered output
+ *****************************************************************************/
+void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
+
+{
+ grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER );
+
+ grBufferSwap( 0 );
+
+ if ( grLfbLock(GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER,
+ GR_LFBWRITEMODE_565, GR_ORIGIN_UPPER_LEFT, FXFALSE,
+ &p_vout->p_sys->p_buffer_info) == FXFALSE )
+ {
+ msg_Err( p_vout, "cannot take 3dfx back buffer lock" );
+ }
+}
+
+/* following functions are local */
+
+/*****************************************************************************
+ * OpenDisplay: open and initialize 3dfx device
+ *****************************************************************************/
+
+static int OpenDisplay( vout_thread_t *p_vout )
+{
+ static char version[80];
+ GrHwConfiguration hwconfig;
+ GrScreenResolution_t resolution = GR_RESOLUTION_800x600;
+ GrLfbInfo_t p_front_buffer_info; /* front buffer info */
+
+ grGlideGetVersion( version );
+ grGlideInit();
+
+ if( !grSstQueryHardware(&hwconfig) )
+ {
+ msg_Err( p_vout, "cannot get 3dfx hardware config" );
+ return( 1 );
+ }
+
+ grSstSelect( 0 );
+ if( !grSstWinOpen( 0, resolution, GR_REFRESH_60Hz,
+ GR_COLORFORMAT_ABGR, GR_ORIGIN_UPPER_LEFT, 2, 1 ) )
+ {
+ msg_Err( p_vout, "cannot open 3dfx screen" );
+ return( 1 );
+ }
+
+ /* disable dithering */
+ //grDitherMode( GR_DITHER_DISABLE );
+
+ /* clear both buffers */
+ grRenderBuffer( GR_BUFFER_BACKBUFFER );
+ grBufferClear( 0, 0, 0 );
+ grRenderBuffer( GR_BUFFER_FRONTBUFFER );
+ grBufferClear( 0, 0, 0 );
+ grRenderBuffer( GR_BUFFER_BACKBUFFER );
+
+ p_vout->p_sys->p_buffer_info.size = sizeof( GrLfbInfo_t );
+ p_front_buffer_info.size = sizeof( GrLfbInfo_t );
+
+ /* lock the buffers to find their adresses */
+ if ( grLfbLock(GR_LFB_WRITE_ONLY, GR_BUFFER_FRONTBUFFER,
+ GR_LFBWRITEMODE_565, GR_ORIGIN_UPPER_LEFT, FXFALSE,
+ &p_front_buffer_info) == FXFALSE )
+ {
+ msg_Err( p_vout, "cannot take 3dfx front buffer lock" );
+ grGlideShutdown();
+ return( 1 );
+ }
+ grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_FRONTBUFFER );
+
+ if ( grLfbLock(GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER,
+ GR_LFBWRITEMODE_565, GR_ORIGIN_UPPER_LEFT, FXFALSE,
+ &p_vout->p_sys->p_buffer_info) == FXFALSE )
+ {
+ msg_Err( p_vout, "cannot take 3dfx back buffer lock" );
+ grGlideShutdown();
+ return( 1 );
+ }
+ grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER );
+
+ grBufferClear( 0, 0, 0 );
+
+ p_vout->p_sys->pp_buffer[0] = p_vout->p_sys->p_buffer_info.lfbPtr;
+ p_vout->p_sys->pp_buffer[1] = p_front_buffer_info.lfbPtr;
+ p_vout->p_sys->i_index = 0;
+
+ return( 0 );
+}
+
+/*****************************************************************************
+ * CloseDisplay: close and reset 3dfx device
+ *****************************************************************************
+ * Returns all resources allocated by OpenDisplay and restore the original
+ * state of the device.
+ *****************************************************************************/
+static void CloseDisplay( vout_thread_t *p_vout )
+{
+ /* unlock the hidden buffer */
+ grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_BACKBUFFER );
+
+ /* shutdown Glide */
+ grGlideShutdown();
+}
+
projects / vlc / blobdiff