Commit e16affa0 authored by Sam Hocevar's avatar Sam Hocevar

* fixed 8bpp YUV.

  * fixed the fscked up Bresenham algorithm in all YUV functions.
parent b7c5bd56
......@@ -7,7 +7,8 @@
* now scaling is on by default, so that people won't tell that the vlc
cannot do scaling :-)
* fixed a few long lines.
* _almost_ fixed 8bpp YUV.
* fixed 8bpp YUV.
* fixed the fscked up Bresenham algorithm in all YUV functions.
Tue Aug 8 11:24:01 CEST 2000
0.1.99f :
......
......@@ -110,7 +110,7 @@ Urgency: Important
Description: Fix 8bpp YUV
The 8bpp YUV function is broken, there is some serious
alpha blending, and it scales pretty badly. Fix it.
Status: Todo
Status: Done 14 Aug 2000 (sam)
Task: 0x15
Difficulty: Medium
......
......@@ -468,96 +468,96 @@ void SetOffset( int i_width, int i_height, int i_pic_width, int i_pic_height,
/*
* Prepare horizontal offset array
*/
if( i_pic_width - i_width > 0 )
if( i_pic_width - i_width == 0 )
{
/* No horizontal scaling: YUV conversion is done directly to picture */
*pb_h_scaling = 0;
}
else if( i_pic_width - i_width > 0 )
{
/* Prepare scaling array for horizontal extension */
*pb_h_scaling = 1;
i_scale_count = i_pic_width;
if( b_double )
if( !b_double )
{
int i_dummy = 0;
for( i_x = i_width; i_x--; )
{
while( (i_scale_count -= i_width) > 0 )
{
*p_offset++ = 0;
*p_offset++ = 0;
}
*p_offset++ = 1;
*p_offset++ = i_dummy & 1;
i_dummy++;
i_scale_count += i_pic_width;
}
}
else
{
int i_dummy = 0;
for( i_x = i_width; i_x--; )
{
while( (i_scale_count -= i_width) > 0 )
{
*p_offset++ = 0;
*p_offset++ = 0;
}
*p_offset++ = 1;
*p_offset++ = i_dummy;
i_dummy = 1 - i_dummy;
i_scale_count += i_pic_width;
}
}
}
else if( i_pic_width - i_width < 0 )
else /* if( i_pic_width - i_width < 0 ) */
{
/* Prepare scaling array for horizontal reduction */
*pb_h_scaling = 1;
i_scale_count = i_pic_width;
if( b_double )
i_scale_count = i_width;
if( !b_double )
{
int i_remainder = 0;
int i_jump;
for( i_x = i_pic_width; i_x--; )
{
i_jump = 1;
while( (i_scale_count -= i_pic_width) >= 0 )
*p_offset = 1;
while( (i_scale_count -= i_pic_width) > 0 )
{
i_jump += 1;
*p_offset += 1;
}
*p_offset++ = i_jump;
*p_offset++ = ( i_jump += i_remainder ) >> 1;
i_remainder = i_jump & 1;
p_offset++;
i_scale_count += i_width;
}
}
else
{
int i_remainder = 0;
int i_jump;
for( i_x = i_pic_width; i_x--; )
{
*p_offset = 1;
while( (i_scale_count -= i_pic_width) >= 0 )
i_jump = 1;
while( (i_scale_count -= i_pic_width) > 0 )
{
*p_offset += 1;
i_jump += 1;
}
p_offset++;
*p_offset++ = i_jump;
*p_offset++ = ( i_jump += i_remainder ) >> 1;
i_remainder = i_jump & 1;
i_scale_count += i_width;
}
}
}
else
{
/* No horizontal scaling: YUV conversion is done directly to picture */
*pb_h_scaling = 0;
}
/*
* Set vertical scaling indicator
*/
if( i_pic_height - i_height > 0 )
if( i_pic_height - i_height == 0 )
{
*pi_v_scaling = 1;
*pi_v_scaling = 0;
}
else if( i_pic_height - i_height < 0 )
else if( i_pic_height - i_height > 0 )
{
*pi_v_scaling = -1;
*pi_v_scaling = 1;
}
else
else /* if( i_pic_height - i_height < 0 ) */
{
*pi_v_scaling = 0;
*pi_v_scaling = -1;
}
}
......@@ -76,7 +76,7 @@ void ConvertY4Gray16( YUV_ARGS_16BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......@@ -138,7 +138,7 @@ void ConvertYUV420RGB16( YUV_ARGS_16BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......@@ -200,7 +200,7 @@ void ConvertYUV422RGB16( YUV_ARGS_16BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......@@ -261,7 +261,7 @@ void ConvertYUV444RGB16( YUV_ARGS_16BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......
......@@ -76,7 +76,7 @@ void ConvertY4Gray32( YUV_ARGS_32BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......@@ -138,7 +138,7 @@ void ConvertYUV420RGB32( YUV_ARGS_32BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......@@ -200,7 +200,7 @@ void ConvertYUV422RGB32( YUV_ARGS_32BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......@@ -261,7 +261,7 @@ void ConvertYUV444RGB32( YUV_ARGS_32BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......
......@@ -77,7 +77,7 @@ void ConvertY4Gray8( YUV_ARGS_8BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......@@ -146,7 +146,7 @@ void ConvertYUV420RGB8( YUV_ARGS_8BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
i_real_y = 0;
for( i_y = 0; i_y < i_height; i_y++ )
{
......
......@@ -107,7 +107,7 @@
switch( i_vertical_scaling ) \
{ \
case -1: /* vertical scaling factor is < 1 */ \
while( (i_scale_count -= i_pic_height) >= 0 ) \
while( (i_scale_count -= i_pic_height) > 0 ) \
{ \
/* Height reduction: skip next source line */ \
p_y += i_width; \
......
......@@ -136,7 +136,7 @@
switch( i_vertical_scaling ) \
{ \
case -1: /* vertical scaling factor is < 1 */ \
while( (i_scale_count -= i_pic_height) >= 0 ) \
while( (i_scale_count -= i_pic_height) > 0 ) \
{ \
/* Height reduction: skip next source line */ \
p_y += i_width; \
......@@ -160,11 +160,10 @@
case 1: /* vertical scaling factor is > 1 */ \
while( (i_scale_count -= i_height) > 0 ) \
{ \
SCALE_WIDTH_DITHER( CHROMA ); \
p_y -= i_width; \
p_u -= i_chroma_width; \
p_v -= i_chroma_width; \
p_pic += i_pic_line_width; \
SCALE_WIDTH_DITHER( CHROMA ); \
} \
i_scale_count += i_pic_height; \
break; \
......
......@@ -352,7 +352,12 @@ void SetOffset( int i_width, int i_height, int i_pic_width, int i_pic_height,
/*
* Prepare horizontal offset array
*/
if( i_pic_width - i_width > 0 )
if( i_pic_width - i_width == 0 )
{
/* No horizontal scaling: YUV conversion is done directly to picture */
*pb_h_scaling = 0;
}
else if( i_pic_width - i_width > 0 )
{
/* Prepare scaling array for horizontal extension */
*pb_h_scaling = 1;
......@@ -367,15 +372,15 @@ void SetOffset( int i_width, int i_height, int i_pic_width, int i_pic_height,
i_scale_count += i_pic_width;
}
}
else if( i_pic_width - i_width < 0 )
else /* if( i_pic_width - i_width < 0 ) */
{
/* Prepare scaling array for horizontal reduction */
*pb_h_scaling = 1;
i_scale_count = i_pic_width;
i_scale_count = i_width;
for( i_x = i_pic_width; i_x--; )
{
*p_offset = 1;
while( (i_scale_count -= i_pic_width) >= 0 )
while( (i_scale_count -= i_pic_width) > 0 )
{
*p_offset += 1;
}
......@@ -383,26 +388,21 @@ void SetOffset( int i_width, int i_height, int i_pic_width, int i_pic_height,
i_scale_count += i_width;
}
}
else
{
/* No horizontal scaling: YUV conversion is done directly to picture */
*pb_h_scaling = 0;
}
/*
* Set vertical scaling indicator
*/
if( i_pic_height - i_height > 0 )
if( i_pic_height - i_height == 0 )
{
*pi_v_scaling = 1;
*pi_v_scaling = 0;
}
else if( i_pic_height - i_height < 0 )
else if( i_pic_height - i_height > 0 )
{
*pi_v_scaling = -1;
*pi_v_scaling = 1;
}
else
else /* if( i_pic_height - i_height < 0 ) */
{
*pi_v_scaling = 0;
*pi_v_scaling = -1;
}
}
......@@ -84,7 +84,7 @@ void ConvertYUV420RGB16( YUV_ARGS_16BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......
......@@ -84,7 +84,7 @@ void ConvertYUV420RGB32( YUV_ARGS_32BPP )
/*
* Perform conversion
*/
i_scale_count = i_pic_height;
i_scale_count = ( i_vertical_scaling == 1 ) ? i_pic_height : i_height;
for( i_y = 0; i_y < i_height; i_y++ )
{
/* Mark beginnning of line for possible later line copy, and initialize
......
......@@ -161,20 +161,27 @@ void vpar_SynchroUpdateStructures( vpar_thread_t * p_vpar,
#if 1
if( p_vpar->synchro.b_all_I )
intf_ErrMsg( " I: 1024/1024 " );
if( p_vpar->synchro.b_all_P )
intf_ErrMsg( "P: %i/%i ", p_vpar->synchro.i_P_seen,
p_vpar->synchro.i_P_seen );
else if( p_vpar->synchro.displayable_p > 0 )
intf_ErrMsg( "P: %i/%i ", p_vpar->synchro.displayable_p,
p_vpar->synchro.i_P_seen );
else
intf_ErrMsg( " " );
if( p_vpar->synchro.b_all_B )
intf_ErrMsg( "B: %i/%i", p_vpar->synchro.i_B_seen,
p_vpar->synchro.i_B_seen );
else if( p_vpar->synchro.displayable_b > 0 )
intf_ErrMsg( "B: %i/%i", p_vpar->synchro.displayable_b,
p_vpar->synchro.i_B_seen );
// intf_ErrMsg( " " );
intf_ErrMsg( "\n" );
else
intf_ErrMsg( " " );
intf_ErrMsg( " Decoding: " );
/*intf_ErrMsg( "\n" );*/
#endif
p_vpar->synchro.i_P_seen = 0;
p_vpar->synchro.i_B_seen = 0;
......
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