* spu_decoder.c : spu decoder thread
*****************************************************************************
* Copyright (C) 2000-2001 VideoLAN
- * $Id: spu_decoder.c,v 1.9 2002/02/15 13:32:53 sam Exp $
+ * $Id: spu_decoder.c,v 1.29 2002/06/27 19:46:32 sam Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
+ * Rudolf Cornelissen <rag.cornelissen@inter.nl.net>
*
* 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
#include <stdlib.h> /* malloc(), free() */
#include <string.h> /* memcpy(), memset() */
-#include <videolan/vlc.h>
+#include <vlc/vlc.h>
+#include <vlc/vout.h>
+#include <vlc/decoder.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h> /* getpid() */
# include <process.h>
#endif
-#include "video.h"
-#include "video_output.h"
-
-#include "stream_control.h"
-#include "input_ext-dec.h"
-
#include "spu_decoder.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int decoder_Probe ( u8 * );
-static int decoder_Run ( decoder_config_t * );
+static int decoder_Run ( decoder_fifo_t * );
static int InitThread ( spudec_thread_t * );
static void EndThread ( spudec_thread_t * );
static void ParsePacket ( spudec_thread_t * );
static int ParseControlSequences( spudec_thread_t *, subpicture_t * );
static int ParseRLE ( spudec_thread_t *, subpicture_t *, u8 * );
+static void RenderSPU ( vout_thread_t *, picture_t *,
+ const subpicture_t * );
/*****************************************************************************
* Capabilities
MODULE_CONFIG_STOP
MODULE_INIT_START
- SET_DESCRIPTION( "DVD subtitles decoder module" )
+ SET_DESCRIPTION( _("DVD subtitles decoder module") )
ADD_CAPABILITY( DECODER, 50 )
MODULE_INIT_STOP
/*****************************************************************************
* decoder_Run: this function is called just after the thread is created
*****************************************************************************/
-static int decoder_Run( decoder_config_t * p_config )
+static int decoder_Run( decoder_fifo_t * p_fifo )
{
spudec_thread_t * p_spudec;
- intf_WarnMsg( 3, "spudec: thread launched. Initializing ..." );
-
/* Allocate the memory needed to store the thread's structure */
p_spudec = (spudec_thread_t *)malloc( sizeof(spudec_thread_t) );
if ( p_spudec == NULL )
{
- intf_ErrMsg( "spudec error: not enough memory "
- "for spudec_CreateThread() to create the new thread" );
- DecoderError( p_config->p_decoder_fifo );
+ msg_Err( p_fifo, "out of memory" );
+ DecoderError( p_fifo );
return( -1 );
}
/*
* Initialize the thread properties
*/
- p_spudec->p_config = p_config;
-
- p_spudec->p_fifo = p_config->p_decoder_fifo;
+ p_spudec->p_vout = NULL;
+ p_spudec->p_fifo = p_fifo;
/*
* Initialize thread and free configuration
if( p_spudec->p_fifo->b_error )
{
DecoderError( p_spudec->p_fifo );
+
+ /* End of thread */
+ EndThread( p_spudec );
+ return -1;
}
/* End of thread */
EndThread( p_spudec );
-
- if( p_spudec->p_fifo->b_error )
- {
- return( -1 );
- }
-
- return( 0 );
-
+ return 0;
}
/* following functions are local */
*****************************************************************************/
static int InitThread( spudec_thread_t *p_spudec )
{
- int i_retry = 0;
-
- /* Spawn a video output if there is none */
- vlc_mutex_lock( &p_vout_bank->lock );
-
- while( p_vout_bank->i_count == 0 )
+ /* Find an available video output */
+ do
{
- vlc_mutex_unlock( &p_vout_bank->lock );
-
- if( i_retry++ > 10 )
+ if( p_spudec->p_fifo->b_die || p_spudec->p_fifo->b_error )
{
- intf_WarnMsg( 1, "spudec: waited too long for vout, aborting" );
- free( p_spudec );
+ return -1;
+ }
- return( -1 );
+ p_spudec->p_vout = vlc_object_find( p_spudec->p_fifo, VLC_OBJECT_VOUT,
+ FIND_ANYWHERE );
+
+ if( p_spudec->p_vout )
+ {
+ break;
}
msleep( VOUT_OUTMEM_SLEEP );
- vlc_mutex_lock( &p_vout_bank->lock );
}
+ while( 1 );
- /* Take the first video output FIXME: take the best one */
- p_spudec->p_vout = p_vout_bank->pp_vout[ 0 ];
- vlc_mutex_unlock( &p_vout_bank->lock );
- InitBitstream( &p_spudec->bit_stream,
- p_spudec->p_config->p_decoder_fifo, NULL, NULL );
+ InitBitstream( &p_spudec->bit_stream, p_spudec->p_fifo, NULL, NULL );
/* Mark thread as running and return */
- return( 0 );
+ return 0;
}
/*****************************************************************************
*****************************************************************************/
static void EndThread( spudec_thread_t *p_spudec )
{
+ if( p_spudec->p_vout != NULL
+ && p_spudec->p_vout->p_subpicture != NULL )
+ {
+ subpicture_t * p_subpic;
+ int i_subpic;
+
+ for( i_subpic = 0; i_subpic < VOUT_MAX_SUBPICTURES; i_subpic++ )
+ {
+ p_subpic = &p_spudec->p_vout->p_subpicture[i_subpic];
+
+ if( p_subpic != NULL &&
+ ( ( p_subpic->i_status == RESERVED_SUBPICTURE )
+ || ( p_subpic->i_status == READY_SUBPICTURE ) ) )
+ {
+ vout_DestroySubPicture( p_spudec->p_vout, p_subpic );
+ }
+ }
+
+ vlc_object_release( p_spudec->p_vout );
+ }
+
free( p_spudec );
}
u8 * p_src;
unsigned int i_offset;
- intf_WarnMsg( 3, "spudec: trying to gather a 0x%.2x long subtitle",
- p_spudec->i_spu_size );
+ msg_Dbg( p_spudec->p_fifo, "trying to gather a 0x%.2x long subtitle",
+ p_spudec->i_spu_size );
/* We cannot display a subpicture with no date */
if( p_spudec->p_fifo->p_first->i_pts == 0 )
{
- intf_WarnMsg( 3, "spudec error: subtitle without a date" );
+ msg_Warn( p_spudec->p_fifo, "subtitle without a date" );
return;
}
/* Allocate the subpicture internal data. */
- p_spu = vout_CreateSubPicture( p_spudec->p_vout, DVD_SUBPICTURE,
- p_spudec->i_rle_size * 4 );
+ p_spu = vout_CreateSubPicture( p_spudec->p_vout, MEMORY_SUBPICTURE,
+ sizeof( subpicture_sys_t )
+ + p_spudec->i_rle_size * 4 );
/* Rationale for the "p_spudec->i_rle_size * 4": we are going to
* expand the RLE stuff so that we won't need to read nibbles later
* on. This will speed things up a lot. Plus, we'll only need to do
return;
}
+ /* Fill the p_spu structure */
+ p_spu->pf_render = RenderSPU;
+ p_spu->p_sys->p_data = (u8*)p_spu->p_sys + sizeof( subpicture_sys_t );
+ p_spu->p_sys->b_palette = 0;
+
/* Get display time now. If we do it later, we may miss the PTS. */
- p_spudec->i_pts = p_spudec->p_fifo->p_first->i_pts;
+ p_spu->p_sys->i_pts = p_spudec->p_fifo->p_first->i_pts;
/* Allocate the temporary buffer we will parse */
p_src = malloc( p_spudec->i_rle_size );
if( p_src == NULL )
{
- intf_ErrMsg( "spudec error: could not allocate p_src" );
+ msg_Err( p_spudec->p_fifo, "out of memory" );
vout_DestroySubPicture( p_spudec->p_vout, p_spu );
return;
}
/* Get RLE data */
- for( i_offset = 0;
- i_offset + SPU_CHUNK_SIZE < p_spudec->i_rle_size;
+ for( i_offset = 0; i_offset < p_spudec->i_rle_size;
i_offset += SPU_CHUNK_SIZE )
{
- GetChunk( &p_spudec->bit_stream, p_src + i_offset, SPU_CHUNK_SIZE );
+ GetChunk( &p_spudec->bit_stream, p_src + i_offset,
+ ( i_offset + SPU_CHUNK_SIZE < p_spudec->i_rle_size ) ?
+ SPU_CHUNK_SIZE : p_spudec->i_rle_size - i_offset );
/* Abort subtitle parsing if we were requested to stop */
if( p_spudec->p_fifo->b_die )
}
}
- GetChunk( &p_spudec->bit_stream, p_src + i_offset,
- p_spudec->i_rle_size - i_offset );
-
#if 0
/* Dump the subtitle info */
- intf_WarnHexDump( 5, p_spu->p_data, p_spudec->i_rle_size );
+ intf_WarnHexDump( 5, p_spu->p_sys->p_data, p_spudec->i_rle_size );
#endif
/* Getting the control part */
return;
}
- intf_WarnMsg( 3, "spudec: total size: 0x%x, RLE offsets: 0x%x 0x%x",
- p_spudec->i_spu_size,
- p_spu->type.spu.i_offset[0], p_spu->type.spu.i_offset[1] );
+ msg_Dbg( p_spudec->p_fifo, "total size: 0x%x, RLE offsets: 0x%x 0x%x",
+ p_spudec->i_spu_size,
+ p_spu->p_sys->pi_offset[0], p_spu->p_sys->pi_offset[1] );
/* SPU is finished - we can ask the video output to display it */
vout_DisplaySubPicture( p_spudec->p_vout, p_spu );
u8 i_command;
int i_date;
+ int i, pi_alpha[4];
+
/* XXX: temporary variables */
- boolean_t b_force_display = 0;
+ vlc_bool_t b_force_display = 0;
/* Initialize the structure */
p_spu->i_start = p_spu->i_stop = 0;
case SPU_CMD_FORCE_DISPLAY:
/* 00 (force displaying) */
- p_spu->i_start = p_spudec->i_pts + ( i_date * 11000 );
+ p_spu->i_start = p_spu->p_sys->i_pts + ( i_date * 11000 );
b_force_display = 1;
break;
case SPU_CMD_START_DISPLAY:
/* 01 (start displaying) */
- p_spu->i_start = p_spudec->i_pts + ( i_date * 11000 );
+ p_spu->i_start = p_spu->p_sys->i_pts + ( i_date * 11000 );
break;
case SPU_CMD_STOP_DISPLAY:
/* 02 (stop displaying) */
- p_spu->i_stop = p_spudec->i_pts + ( i_date * 11000 );
+ p_spu->i_stop = p_spu->p_sys->i_pts + ( i_date * 11000 );
break;
case SPU_CMD_SET_PALETTE:
- /* 03xxxx (palette) - trashed */
- RemoveBits( &p_spudec->bit_stream, 16 );
+ /* 03xxxx (palette) */
+ if( p_spudec->p_fifo->p_demux_data &&
+ *(int*)p_spudec->p_fifo->p_demux_data == 0xBeeF )
+ {
+ u32 i_color;
+
+ p_spu->p_sys->b_palette = 1;
+ for( i = 0; i < 4 ; i++ )
+ {
+ i_color = ((u32*)((char*)p_spudec->p_fifo->
+ p_demux_data + sizeof(int)))[
+ GetBits(&p_spudec->bit_stream, 4) ];
+
+ /* FIXME: this job should be done sooner */
+#ifndef WORDS_BIGENDIAN
+ p_spu->p_sys->pi_yuv[3-i][0] = (i_color>>16) & 0xff;
+ p_spu->p_sys->pi_yuv[3-i][1] = (i_color>>0) & 0xff;
+ p_spu->p_sys->pi_yuv[3-i][2] = (i_color>>8) & 0xff;
+#else
+ p_spu->p_sys->pi_yuv[3-i][0] = (i_color>>8) & 0xff;
+ p_spu->p_sys->pi_yuv[3-i][1] = (i_color>>24) & 0xff;
+ p_spu->p_sys->pi_yuv[3-i][2] = (i_color>>16) & 0xff;
+#endif
+ }
+ }
+ else
+ {
+ RemoveBits( &p_spudec->bit_stream, 16 );
+ }
i_index += 2;
break;
case SPU_CMD_SET_ALPHACHANNEL:
- /* 04xxxx (alpha channel) - trashed */
- RemoveBits( &p_spudec->bit_stream, 16 );
+ /* 04xxxx (alpha channel) */
+ pi_alpha[3] = GetBits( &p_spudec->bit_stream, 4 );
+ pi_alpha[2] = GetBits( &p_spudec->bit_stream, 4 );
+ pi_alpha[1] = GetBits( &p_spudec->bit_stream, 4 );
+ pi_alpha[0] = GetBits( &p_spudec->bit_stream, 4 );
+
+ /* Ignore blank alpha palette. Sometimes spurious blank
+ * alpha palettes are present - dunno why. */
+ if( pi_alpha[0] | pi_alpha[1] | pi_alpha[2] | pi_alpha[3] )
+ {
+ p_spu->p_sys->pi_alpha[0] = pi_alpha[0];
+ p_spu->p_sys->pi_alpha[1] = pi_alpha[1];
+ p_spu->p_sys->pi_alpha[2] = pi_alpha[2];
+ p_spu->p_sys->pi_alpha[3] = pi_alpha[3];
+ }
+ else
+ {
+ msg_Warn( p_spudec->p_fifo,
+ "ignoring blank alpha palette" );
+ }
+
i_index += 2;
break;
case SPU_CMD_SET_OFFSETS:
/* 06xxxxyyyy (byte offsets) */
- p_spu->type.spu.i_offset[0] =
+ p_spu->p_sys->pi_offset[0] =
GetBits( &p_spudec->bit_stream, 16 ) - 4;
- p_spu->type.spu.i_offset[1] =
+ p_spu->p_sys->pi_offset[1] =
GetBits( &p_spudec->bit_stream, 16 ) - 4;
i_index += 4;
default:
/* xx (unknown command) */
- intf_ErrMsg( "spudec error: unknown command 0x%.2x",
- i_command );
+ msg_Err( p_spudec->p_fifo, "unknown command 0x%.2x",
+ i_command );
return( 1 );
}
/* Check that the next sequence index matches the current one */
if( i_next_seq != i_cur_seq )
{
- intf_ErrMsg( "spudec error: index mismatch (0x%.4x != 0x%.4x)",
- i_next_seq, i_cur_seq );
+ msg_Err( p_spudec->p_fifo, "index mismatch (0x%.4x != 0x%.4x)",
+ i_next_seq, i_cur_seq );
return( 1 );
}
if( i_index > p_spudec->i_spu_size )
{
- intf_ErrMsg( "spudec error: uh-oh, we went too far (0x%.4x > 0x%.4x)",
- i_index, p_spudec->i_spu_size );
+ msg_Err( p_spudec->p_fifo, "uh-oh, we went too far (0x%.4x > 0x%.4x)",
+ i_index, p_spudec->i_spu_size );
return( 1 );
}
if( !p_spu->i_start )
{
- intf_ErrMsg( "spudec error: no `start display' command" );
+ msg_Err( p_spudec->p_fifo, "no `start display' command" );
}
if( !p_spu->i_stop )
/* More than one padding byte - this is very strange, but
* we can deal with it */
default:
- intf_WarnMsg( 2, "spudec warning: %i padding bytes, we usually "
- "get 0 or 1 of them",
- p_spudec->i_spu_size - i_index );
+ msg_Warn( p_spudec->p_fifo,
+ "%i padding bytes, we usually get 0 or 1 of them",
+ p_spudec->i_spu_size - i_index );
while( i_index < p_spudec->i_spu_size )
{
if( b_force_display )
{
- intf_ErrMsg( "spudec: \"force display\" command" );
- intf_ErrMsg( "spudec: send mail to <sam@zoy.org> if you "
- "want to help debugging this" );
+ msg_Err( p_spudec->p_fifo, "\"force display\" command" );
+ msg_Err( p_spudec->p_fifo, "send mail to <sam@zoy.org> if you "
+ "want to help debugging this" );
}
/* Successfully parsed ! */
unsigned int i_height = p_spu->i_height;
unsigned int i_x, i_y;
- u16 *p_dest = (u16 *)p_spu->p_data;
+ u16 *p_dest = (u16 *)p_spu->p_sys->p_data;
/* The subtitles are interlaced, we need two offsets */
unsigned int i_id = 0; /* Start on the even SPU layer */
unsigned int pi_table[ 2 ];
unsigned int *pi_offset;
- boolean_t b_empty_top = 1,
- b_empty_bottom = 0;
+ vlc_bool_t b_empty_top = 1,
+ b_empty_bottom = 0;
unsigned int i_skipped_top = 0,
i_skipped_bottom = 0;
- pi_table[ 0 ] = p_spu->type.spu.i_offset[ 0 ] << 1;
- pi_table[ 1 ] = p_spu->type.spu.i_offset[ 1 ] << 1;
+ /* Colormap statistics */
+ int i_border = -1;
+ int stats[4]; stats[0] = stats[1] = stats[2] = stats[3] = 0;
+
+ pi_table[ 0 ] = p_spu->p_sys->pi_offset[ 0 ] << 1;
+ pi_table[ 1 ] = p_spu->p_sys->pi_offset[ 1 ] << 1;
for( i_y = 0 ; i_y < i_height ; i_y++ )
{
else
{
/* We have a boo boo ! */
- intf_ErrMsg( "spudec error: unknown RLE code "
- "0x%.4x", i_code );
+ msg_Err( p_spudec->p_fifo, "unknown RLE code "
+ "0x%.4x", i_code );
return( 1 );
}
}
if( ( (i_code >> 2) + i_x + i_y * i_width ) > i_height * i_width )
{
- intf_ErrMsg( "spudec error: out of bounds, %i at (%i,%i) is "
- "out of %ix%i",
- i_code >> 2, i_x, i_y, i_width, i_height );
+ msg_Err( p_spudec->p_fifo,
+ "out of bounds, %i at (%i,%i) is out of %ix%i",
+ i_code >> 2, i_x, i_y, i_width, i_height );
return( 1 );
}
- if( i_code == (i_width << 2) ) /* FIXME: we assume 0 is transp */
+ /* Try to find the border color */
+ if( p_spu->p_sys->pi_alpha[ i_code & 0x3 ] != 0x00 )
+ {
+ i_border = i_code & 0x3;
+ stats[i_border] += i_code >> 2;
+ }
+
+ if( (i_code >> 2) == i_width
+ && p_spu->p_sys->pi_alpha[ i_code & 0x3 ] == 0x00 )
{
if( b_empty_top )
{
/* Check that we didn't go too far */
if( i_x > i_width )
{
- intf_ErrMsg( "spudec error: i_x overflowed, %i > %i",
- i_x, i_width );
+ msg_Err( p_spudec->p_fifo, "i_x overflowed, %i > %i",
+ i_x, i_width );
return( 1 );
}
/* We shouldn't get any padding bytes */
if( i_y < i_height )
{
- intf_ErrMsg( "spudec: padding bytes found in RLE sequence" );
- intf_ErrMsg( "spudec: send mail to <sam@zoy.org> if you "
- "want to help debugging this" );
+ msg_Err( p_spudec->p_fifo, "padding bytes found in RLE sequence" );
+ msg_Err( p_spudec->p_fifo, "send mail to <sam@zoy.org> if you "
+ "want to help debugging this" );
/* Skip them just in case */
while( i_y < i_height )
return( 1 );
}
- intf_WarnMsg( 3, "spudec: valid subtitle, size: %ix%i, position: %i,%i",
- p_spu->i_width, p_spu->i_height, p_spu->i_x, p_spu->i_y );
+ msg_Dbg( p_spudec->p_fifo, "valid subtitle, size: %ix%i, position: %i,%i",
+ p_spu->i_width, p_spu->i_height, p_spu->i_x, p_spu->i_y );
/* Crop if necessary */
if( i_skipped_top || i_skipped_bottom )
p_spu->i_y += i_skipped_top;
p_spu->i_height -= i_skipped_top + i_skipped_bottom;
- intf_WarnMsg( 3, "spudec: cropped to: %ix%i, position: %i,%i",
- p_spu->i_width, p_spu->i_height, p_spu->i_x, p_spu->i_y );
+ msg_Dbg( p_spudec->p_fifo, "cropped to: %ix%i, position: %i,%i",
+ p_spu->i_width, p_spu->i_height, p_spu->i_x, p_spu->i_y );
+ }
+
+ /* Handle color if no palette was found */
+ if( !p_spu->p_sys->b_palette )
+ {
+ int i, i_inner = -1, i_shade = -1;
+
+ /* Set the border color */
+ p_spu->p_sys->pi_yuv[i_border][0] = 0x00;
+ p_spu->p_sys->pi_yuv[i_border][1] = 0x80;
+ p_spu->p_sys->pi_yuv[i_border][2] = 0x80;
+ stats[i_border] = 0;
+
+ /* Find the inner colors */
+ for( i = 0 ; i < 4 && i_inner == -1 ; i++ )
+ {
+ if( stats[i] )
+ {
+ i_inner = i;
+ }
+ }
+
+ for( ; i < 4 && i_shade == -1 ; i++ )
+ {
+ if( stats[i] )
+ {
+ if( stats[i] > stats[i_inner] )
+ {
+ i_shade = i_inner;
+ i_inner = i;
+ }
+ else
+ {
+ i_shade = i;
+ }
+ }
+ }
+
+ /* Set the inner color */
+ if( i_inner != -1 )
+ {
+ p_spu->p_sys->pi_yuv[i_inner][0] = 0xff;
+ p_spu->p_sys->pi_yuv[i_inner][1] = 0x80;
+ p_spu->p_sys->pi_yuv[i_inner][2] = 0x80;
+ }
+
+ /* Set the anti-aliasing color */
+ if( i_shade != -1 )
+ {
+ p_spu->p_sys->pi_yuv[i_shade][0] = 0x80;
+ p_spu->p_sys->pi_yuv[i_shade][1] = 0x80;
+ p_spu->p_sys->pi_yuv[i_shade][2] = 0x80;
+ }
+
+ msg_Dbg( p_spudec->p_fifo,
+ "using custom palette (border %i, inner %i, shade %i)",
+ i_border, i_inner, i_shade );
}
return( 0 );
}
+/*****************************************************************************
+ * RenderSPU: draw an SPU on a picture
+ *****************************************************************************
+ * This is a fast implementation of the subpicture drawing code. The data
+ * has been preprocessed once, so we don't need to parse the RLE buffer again
+ * and again. Most sanity checks are already done so that this routine can be
+ * as fast as possible.
+ *****************************************************************************/
+static void RenderSPU( vout_thread_t *p_vout, picture_t *p_pic,
+ const subpicture_t *p_spu )
+{
+ /* Common variables */
+ u16 p_clut16[4];
+ u32 p_clut32[4];
+ u8 *p_dest;
+ u8 *p_destptr = (u8 *)p_dest;
+ u16 *p_source = (u16 *)p_spu->p_sys->p_data;
+
+ int i_x, i_y;
+ int i_len, i_color, i_colprecomp, i_destalpha;
+ u8 i_cnt;
+
+ /* RGB-specific */
+ int i_xscale, i_yscale, i_width, i_height, i_ytmp, i_yreal, i_ynext;
+
+ switch( p_vout->output.i_chroma )
+ {
+ /* I420 target, no scaling */
+ case FOURCC_I420:
+ case FOURCC_IYUV:
+ case FOURCC_YV12:
+
+ p_dest = p_pic->Y_PIXELS + p_spu->i_x + p_spu->i_width
+ + p_pic->Y_PITCH * ( p_spu->i_y + p_spu->i_height );
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = p_spu->i_height * p_pic->Y_PITCH ;
+ i_y ;
+ i_y -= p_pic->Y_PITCH )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = p_spu->i_width ; i_x ; )
+ {
+ /* Get the RLE part, then draw the line */
+ i_color = *p_source & 0x3;
+ i_len = *p_source++ >> 2;
+
+ switch( p_spu->p_sys->pi_alpha[ i_color ] )
+ {
+ case 0x00:
+ break;
+
+ case 0x0f:
+ memset( p_dest - i_x - i_y,
+ p_spu->p_sys->pi_yuv[i_color][0], i_len );
+ break;
+
+ default:
+ /* To be able to divide by 16 (>>4) we add 1 to the alpha.
+ * This means Alpha 0 won't be completely transparent, but
+ * that's handled in a special case above anyway. */
+ i_colprecomp = p_spu->p_sys->pi_yuv[i_color][0]
+ * (p_spu->p_sys->pi_alpha[ i_color ] + 1);
+ i_destalpha = 15 - p_spu->p_sys->pi_alpha[ i_color ];
+
+ for ( p_destptr = p_dest - i_x - i_y;
+ p_destptr < p_dest - i_x - i_y + i_len;
+ p_destptr++ )
+ {
+ *p_destptr = ( i_colprecomp +
+ *p_destptr * i_destalpha ) >> 4;
+ }
+ break;
+
+ }
+ i_x -= i_len;
+ }
+ }
+
+ break;
+
+ /* RV16 target, scaling */
+ case FOURCC_RV16:
+
+ /* XXX: this is a COMPLETE HACK, memcpy is unable to do u16s anyway */
+ /* FIXME: get this from the DVD */
+ for( i_color = 0; i_color < 4; i_color++ )
+ {
+ p_clut16[i_color] = 0x1111
+ * ( (u16)p_spu->p_sys->pi_yuv[i_color][0] >> 4 );
+ }
+
+ i_xscale = ( p_vout->output.i_width << 6 ) / p_vout->render.i_width;
+ i_yscale = ( p_vout->output.i_height << 6 ) / p_vout->render.i_height;
+
+ i_width = p_spu->i_width * i_xscale;
+ i_height = p_spu->i_height * i_yscale;
+
+ p_dest = p_pic->p->p_pixels + ( i_width >> 6 ) * 2
+ /* Add the picture coordinates and the SPU coordinates */
+ + ( (p_spu->i_x * i_xscale) >> 6 ) * 2
+ + ( (p_spu->i_y * i_yscale) >> 6 ) * p_pic->p->i_pitch;
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0 ; i_y < i_height ; )
+ {
+ i_ytmp = i_y >> 6;
+ i_y += i_yscale;
+
+ /* Check whether we need to draw one line or more than one */
+ if( i_ytmp + 1 >= ( i_y >> 6 ) )
+ {
+ /* Just one line : we precalculate i_y >> 6 */
+ i_yreal = p_pic->p->i_pitch * i_ytmp;
+
+ /* Draw until we reach the end of the line */
+ for( i_x = i_width ; i_x ; )
+ {
+ /* Get the RLE part, then draw the line */
+ i_color = *p_source & 0x3;
+
+ switch( p_spu->p_sys->pi_alpha[ i_color ] )
+ {
+ case 0x00:
+ i_x -= i_xscale * ( *p_source++ >> 2 );
+ break;
+
+ case 0x0f:
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ memset( p_dest - 2 * ( i_x >> 6 ) + i_yreal,
+ p_clut16[ i_color ],
+ 2 * ( ( i_len >> 6 ) + 1 ) );
+ i_x -= i_len;
+ break;
+
+ default:
+ /* FIXME: we should do transparency */
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ memset( p_dest - 2 * ( i_x >> 6 ) + i_yreal,
+ p_clut16[ i_color ],
+ 2 * ( ( i_len >> 6 ) + 1 ) );
+ i_x -= i_len;
+ break;
+ }
+
+ }
+ }
+ else
+ {
+ i_yreal = p_pic->p->i_pitch * i_ytmp;
+ i_ynext = p_pic->p->i_pitch * i_y >> 6;
+
+ /* Draw until we reach the end of the line */
+ for( i_x = i_width ; i_x ; )
+ {
+ /* Get the RLE part, then draw as many lines as needed */
+ i_color = *p_source & 0x3;
+
+ switch( p_spu->p_sys->pi_alpha[ i_color ] )
+ {
+ case 0x00:
+ i_x -= i_xscale * ( *p_source++ >> 2 );
+ break;
+
+ case 0x0f:
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ for( i_ytmp = i_yreal ; i_ytmp < i_ynext ;
+ i_ytmp += p_pic->p->i_pitch )
+ {
+ memset( p_dest - 2 * ( i_x >> 6 ) + i_ytmp,
+ p_clut16[ i_color ],
+ 2 * ( ( i_len >> 6 ) + 1 ) );
+ }
+ i_x -= i_len;
+ break;
+
+ default:
+ /* FIXME: we should do transparency */
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ for( i_ytmp = i_yreal ; i_ytmp < i_ynext ;
+ i_ytmp += p_pic->p->i_pitch )
+ {
+ memset( p_dest - 2 * ( i_x >> 6 ) + i_ytmp,
+ p_clut16[ i_color ],
+ 2 * ( ( i_len >> 6 ) + 1 ) );
+ }
+ i_x -= i_len;
+ break;
+ }
+ }
+ }
+ }
+
+ break;
+
+ /* RV32 target, scaling */
+ case FOURCC_RV24:
+ case FOURCC_RV32:
+
+ /* XXX: this is a COMPLETE HACK, memcpy is unable to do u32s anyway */
+ /* FIXME: get this from the DVD */
+ for( i_color = 0; i_color < 4; i_color++ )
+ {
+ p_clut32[i_color] = 0x11111111
+ * ( (u16)p_spu->p_sys->pi_yuv[i_color][0] >> 4 );
+ }
+
+ i_xscale = ( p_vout->output.i_width << 6 ) / p_vout->render.i_width;
+ i_yscale = ( p_vout->output.i_height << 6 ) / p_vout->render.i_height;
+
+ i_width = p_spu->i_width * i_xscale;
+ i_height = p_spu->i_height * i_yscale;
+
+ p_dest = p_pic->p->p_pixels + ( i_width >> 6 ) * 4
+ /* Add the picture coordinates and the SPU coordinates */
+ + ( (p_spu->i_x * i_xscale) >> 6 ) * 4
+ + ( (p_spu->i_y * i_yscale) >> 6 ) * p_pic->p->i_pitch;
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0 ; i_y < i_height ; )
+ {
+ i_ytmp = i_y >> 6;
+ i_y += i_yscale;
+
+ /* Check whether we need to draw one line or more than one */
+ if( i_ytmp + 1 >= ( i_y >> 6 ) )
+ {
+ /* Just one line : we precalculate i_y >> 6 */
+ i_yreal = p_pic->p->i_pitch * i_ytmp;
+
+ /* Draw until we reach the end of the line */
+ for( i_x = i_width ; i_x ; )
+ {
+ /* Get the RLE part, then draw the line */
+ i_color = *p_source & 0x3;
+
+ switch( p_spu->p_sys->pi_alpha[ i_color ] )
+ {
+ case 0x00:
+ i_x -= i_xscale * ( *p_source++ >> 2 );
+ break;
+
+ case 0x0f:
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ memset( p_dest - 4 * ( i_x >> 6 ) + i_yreal,
+ p_clut32[ i_color ], 4 * ( ( i_len >> 6 ) + 1 ) );
+ i_x -= i_len;
+ break;
+
+ default:
+ /* FIXME: we should do transparency */
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ memset( p_dest - 4 * ( i_x >> 6 ) + i_yreal,
+ p_clut32[ i_color ], 4 * ( ( i_len >> 6 ) + 1 ) );
+ i_x -= i_len;
+ break;
+ }
+
+ }
+ }
+ else
+ {
+ i_yreal = p_pic->p->i_pitch * i_ytmp;
+ i_ynext = p_pic->p->i_pitch * i_y >> 6;
+
+ /* Draw until we reach the end of the line */
+ for( i_x = i_width ; i_x ; )
+ {
+ /* Get the RLE part, then draw as many lines as needed */
+ i_color = *p_source & 0x3;
+
+ switch( p_spu->p_sys->pi_alpha[ i_color ] )
+ {
+ case 0x00:
+ i_x -= i_xscale * ( *p_source++ >> 2 );
+ break;
+
+ case 0x0f:
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ for( i_ytmp = i_yreal ; i_ytmp < i_ynext ;
+ i_ytmp += p_pic->p->i_pitch )
+ {
+ memset( p_dest - 4 * ( i_x >> 6 ) + i_ytmp,
+ p_clut32[ i_color ],
+ 4 * ( ( i_len >> 6 ) + 1 ) );
+ }
+ i_x -= i_len;
+ break;
+
+ default:
+ /* FIXME: we should do transparency */
+ i_len = i_xscale * ( *p_source++ >> 2 );
+ for( i_ytmp = i_yreal ; i_ytmp < i_ynext ;
+ i_ytmp += p_pic->p->i_pitch )
+ {
+ memset( p_dest - 4 * ( i_x >> 6 ) + i_ytmp,
+ p_clut32[ i_color ],
+ 4 * ( ( i_len >> 6 ) + 1 ) );
+ }
+ i_x -= i_len;
+ break;
+ }
+ }
+ }
+ }
+
+ break;
+
+ /* NVidia overlay, no scaling */
+ case FOURCC_YUY2:
+
+ p_dest = p_pic->p->p_pixels +
+ (p_spu->i_x + p_spu->i_width +
+ p_vout->output.i_width * ( p_spu->i_y + p_spu->i_height )) * 2;
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = p_spu->i_height * p_vout->output.i_width;
+ i_y ;
+ i_y -= p_vout->output.i_width )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = p_spu->i_width ; i_x ; )
+ {
+ /* Get the RLE part, then draw the line */
+ i_color = *p_source & 0x3;
+
+ switch( p_spu->p_sys->pi_alpha[ i_color ] )
+ {
+ case 0x00:
+ i_x -= *p_source++ >> 2;
+ break;
+
+ case 0x0f:
+ i_len = *p_source++ >> 2;
+ for( i_cnt = 0; i_cnt < i_len; i_cnt++ )
+ {
+ /* draw a pixel */
+ /* Y */
+ memset( p_dest - i_x * 2 - i_y * 2 + i_cnt * 2,
+ p_spu->p_sys->pi_yuv[i_color][0], 1);
+
+ if (!(i_cnt & 0x01))
+ {
+ /* U and V */
+ memset( p_dest - i_x * 2 - i_y * 2 + i_cnt * 2 + 1,
+ 0x80, 1);
+ memset( p_dest - i_x * 2 - i_y * 2 + i_cnt * 2 + 3,
+ 0x80, 1);
+ }
+ }
+ i_x -= i_len;
+ break;
+
+ default:
+ /* FIXME: we should do transparency */
+ i_len = *p_source++ >> 2;
+ for( i_cnt = 0; i_cnt < i_len; i_cnt++ )
+ {
+ /* draw a pixel */
+ /* Y */
+ memset( p_dest - i_x * 2 - i_y * 2 + i_cnt * 2,
+ p_spu->p_sys->pi_yuv[i_color][0], 1);
+
+ if (!(i_cnt & 0x01))
+ {
+ /* U and V */
+ memset( p_dest - i_x * 2 - i_y * 2 + i_cnt * 2 + 1,
+ 0x80, 1);
+ memset( p_dest - i_x * 2 - i_y * 2 + i_cnt * 2 + 3,
+ 0x80, 1);
+ }
+ }
+ i_x -= i_len;
+ break;
+ }
+ }
+ }
+
+ break;
+
+
+ default:
+ msg_Err( p_vout, "unknown chroma, can't render SPU" );
+ break;
+ }
+}
projects / vlc / blobdiff