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vlc-1.1
Commit c4a60506 authored by Sam Hocevar's avatar Sam Hocevar
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. gestion du gamma en 8bpp grayscale 

 . optimisations dans la YUV 8bpp
 . l'output framebuffer ne bloque plus la console
 . rajout d'une fonction dans la structure vout pour allouer une palette
 . r�initialisation de l'ancienne palette en quittant

bugs restant:
 . pas d'allocation de palette en 8bits sous X11
 . bugs du scaling en 8bits sous X11 (sans doute d� � l'alignement sur 1
  octet au lieu de 2)
 . l'output framebuffer est toujours p�t�e pour 16 et 32 bits
 . pas de correction gamma en 8bits couleur
 . c'est tout moche pendant la fraction de seconde du changement de palette
parent f7217115
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Showing with 246 additions and 184 deletions
include/video_output.h
View file @ c4a60506
......@@ -41,7 +41,7 @@ typedef struct vout_yuv_s
vout_yuv_convert_t * p_Convert444; /* YUV 4:4:4 converter */
/* Pre-calculated convertion tables */
void * p_base; /* base for all convertion tables */
void * p_base; /* base for all conversion tables */
union
{
u8 * p_gray8; /* gray 8 bits table */
......@@ -54,7 +54,7 @@ typedef struct vout_yuv_s
/* Temporary convertion buffer and offset array */
void * p_buffer; /* convertion buffer */
int * p_offset; /* offset array */
int * p_offset; /* offset array */
} vout_yuv_t;
/*******************************************************************************
......@@ -85,6 +85,9 @@ typedef struct vout_buffer_s
* is represented by a video output thread, and described using following
* structure.
*******************************************************************************/
typedef void (vout_set_palette_t)( p_vout_thread_t p_vout,
u16 *red, u16 *green, u16 *blue, u16 *transp );
typedef struct vout_thread_s
{
/* Thread properties and lock */
......@@ -123,15 +126,13 @@ typedef struct vout_thread_s
u32 i_black_pixel; /* black */
u32 i_gray_pixel; /* gray */
u32 i_blue_pixel; /* blue */
/* Palette */
u8 lookup[2176]; /* lookup table for 8 bpp palette */
/* Pictures and rendering properties */
boolean_t b_grayscale; /* color or grayscale display */
boolean_t b_info; /* print additionnal informations */
boolean_t b_interface; /* render interface */
boolean_t b_scale; /* allow picture scaling */
vout_set_palette_t *p_set_palette; /* sets 8bpp palette */
/* Idle screens management */
mtime_t last_display_date; /* last non idle display date */
......
src/interface/interface.c
View file @ c4a60506
......@@ -210,22 +210,23 @@ int intf_SelectChannel( intf_thread_t * p_intf, int i_channel )
return( 1 );
}
/*******************************************************************************
/*****************************************************************************
* intf_ProcessKey: process standard keys
*******************************************************************************
*****************************************************************************
* This function will process standard keys and return non 0 if the key was
* unknown.
*******************************************************************************/
*****************************************************************************/
int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
{
switch( i_key )
{
case 'Q': /* quit order */
case 'Q': /* quit order */
case 'q':
case 27: /* escape key */
case 27: /* escape key */
case 3: /* ^C */
p_intf->b_die = 1;
break;
case '0': /* source change */
case '0': /* source change */
case '1':
case '2':
case '3':
......@@ -239,17 +240,17 @@ int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
* its own error messages */
intf_SelectChannel( p_intf, i_key - '0' );
break;
case '+': /* volume + */
case '+': /* volume + */
// ??
break;
case '-': /* volume - */
case '-': /* volume - */
// ??
break;
case 'M': /* toggle mute */
case 'M': /* toggle mute */
case 'm':
// ??
break;
case 'g': /* gamma - */
case 'g': /* gamma - */
if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_gamma > -INTF_GAMMA_LIMIT) )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
......@@ -258,7 +259,7 @@ int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
vlc_mutex_unlock( &p_intf->p_vout->change_lock );
}
break;
case 'G': /* gamma + */
case 'G': /* gamma + */
if( (p_intf->p_vout != NULL) && (p_intf->p_vout->f_gamma < INTF_GAMMA_LIMIT) )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
......@@ -267,7 +268,7 @@ int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
vlc_mutex_unlock( &p_intf->p_vout->change_lock );
}
break;
case 'c': /* toggle grayscale */
case 'c': /* toggle grayscale */
if( p_intf->p_vout != NULL )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
......@@ -276,7 +277,7 @@ int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
vlc_mutex_unlock( &p_intf->p_vout->change_lock );
}
break;
case ' ': /* toggle interface */
case ' ': /* toggle interface */
if( p_intf->p_vout != NULL )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
......@@ -285,7 +286,7 @@ int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
vlc_mutex_unlock( &p_intf->p_vout->change_lock );
}
break;
case 'i': /* toggle info */
case 'i': /* toggle info */
if( p_intf->p_vout != NULL )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
......@@ -294,7 +295,7 @@ int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
vlc_mutex_unlock( &p_intf->p_vout->change_lock );
}
break;
case 's': /* toggle scaling */
case 's': /* toggle scaling */
if( p_intf->p_vout != NULL )
{
vlc_mutex_lock( &p_intf->p_vout->change_lock );
......@@ -303,7 +304,7 @@ int intf_ProcessKey( intf_thread_t *p_intf, int i_key )
vlc_mutex_unlock( &p_intf->p_vout->change_lock );
}
break;
default: /* unknown key */
default: /* unknown key */
return( 1 );
}
......
src/video_output/video_fb.c
View file @ c4a60506
......@@ -67,8 +67,8 @@ typedef struct vout_sys_s
******************************************************************************/
static int FBOpenDisplay ( vout_thread_t *p_vout );
static void FBCloseDisplay ( vout_thread_t *p_vout );
static void FBInitBWPalette ( vout_thread_t *p_vout );
static void FBInitRGBPalette( vout_thread_t *p_vout );
static void FBSetPalette ( p_vout_thread_t p_vout,
u16 *red, u16 *green, u16 *blue, u16 *transp );
/******************************************************************************
* vout_SysCreate: allocates FB video thread output method
......@@ -101,6 +101,7 @@ int vout_SysCreate( vout_thread_t *p_vout, char *psz_display, int i_root_window
******************************************************************************/
int vout_SysInit( vout_thread_t *p_vout )
{
p_vout->p_set_palette = FBSetPalette;
return( 0 );
}
......@@ -230,8 +231,8 @@ static int FBOpenDisplay( vout_thread_t *p_vout )
ioctl( p_vout->p_sys->i_fb_dev, FBIOGETCMAP, &p_vout->p_sys->fb_cmap );
/* initializes black & white palette */
//FBInitRGBPalette( p_vout );
//FBInitBWPalette( p_vout );
FBInitRGBPalette( p_vout );
p_vout->i_bytes_per_pixel = 1;
p_vout->i_bytes_per_line = p_vout->i_width;
......@@ -301,116 +302,16 @@ static void FBCloseDisplay( vout_thread_t *p_vout )
close( p_vout->p_sys->i_fb_dev );
}
/*****************************************************************************
* FBInitRGBPalette: initialize color palette for 8 bpp
*****************************************************************************/
static void FBInitRGBPalette( vout_thread_t *p_vout )
/******************************************************************************
* FBSetPalette: sets an 8 bpp palette
******************************************************************************
* This function is just a prototype that does nothing. Architectures that
* support palette allocation should override it.
******************************************************************************/
static void FBSetPalette ( p_vout_thread_t p_vout,
u16 *red, u16 *green, u16 *blue, u16 *transp )
{
#define SATURATE( x ) \
x = x + ( x >> 3 ) - 16; \
if( x < 0 ) x = 0; \
if( x > 255 ) x = 255;
int y,u,v;
int r,g,b;
int uvRed, uvGreen, uvBlue;
unsigned int counter = 0;
unsigned int allocated = 0;
unsigned short red[256], green[256], blue[256], transp[256];
unsigned char extralookup[2176];
struct fb_cmap cmap = { 0, 256, red, green, blue, transp };
for ( y = 0; y <= 256; y += 16 )
{
for ( u = 0; u <= 256; u += 32 )
for ( v = 0; v <= 256; v += 32 )
{
uvRed = (V_RED_COEF*(v-128)) >> SHIFT;
uvGreen = (U_GREEN_COEF*(u-128) + V_GREEN_COEF*(v-128)) >> SHIFT;
uvBlue = (U_BLUE_COEF*(u-128)) >> SHIFT;
r = y + uvRed;
g = y + uvGreen;
b = y + uvBlue;
if( r >= RGB_MIN && g >= RGB_MIN && b >= RGB_MIN
&& r <= RGB_MAX && g <= RGB_MAX && b <= RGB_MAX )
{
if(allocated == 256) { fprintf(stderr, "sorry, no colors left\n"); exit(1); }
/* saturate the colors */
SATURATE( r );
SATURATE( g );
SATURATE( b );
red[allocated] = r << 8;
green[allocated] = g << 8;
blue[allocated] = b << 8;
transp[allocated] = 0;
/* allocate color */
extralookup[counter] = 1;
p_vout->lookup[counter++] = allocated;
allocated++;
}
else
{
extralookup[counter] = 0;
p_vout->lookup[counter++] = 0;
}
}
counter += 128-81;
}
counter = 0;
for ( y = 0; y <= 256; y += 16 )
{
for ( u = 0; u <= 256; u += 32 )
for ( v = 0; v <= 256; v += 32 )
{
int y2, u2, v2;
int dist = 100000000;
if( p_vout->lookup[counter] || y==0)
{
counter++;
continue;
}
for( y2 = y-16; y2 <= y; y2+= 16 )
for( u2 = 0; u2 <= 256; u2 += 32 )
for( v2 = 0; v2 <= 256; v2 += 32 )
{
if( extralookup[((y2>>4)<<7) + (u2>>5)*9 + (v2>>5)])
/* find the nearest color */
if( 128*(y-y2) + (u-u2)*(u-u2) + (v-v2)*(v-v2) < dist )
{
p_vout->lookup[counter] = p_vout->lookup[((y2>>4)<<7) + (u2>>5)*9 + (v2>>5)];
dist = 128*(y-y2) + (u-u2)*(u-u2) + (v-v2)*(v-v2);
}
}
counter++;
}
counter += 128-81;
}
ioctl( p_vout->p_sys->i_fb_dev, FBIOPUTCMAP, &cmap );
}
/*****************************************************************************
* FBInitBWPalette: initialize grayscale palette for 8 bpp
*****************************************************************************/
static void FBInitBWPalette( vout_thread_t *p_vout )
{
unsigned int i;
unsigned short gamma[256], transp[256];
struct fb_cmap cmap = { 0, 256, gamma, gamma, gamma, transp };
for( i=0; i<256; i++ )
{
gamma[i] = i << 8;
transp[i] = 0;
}
ioctl( p_vout->p_sys->i_fb_dev, FBIOPUTCMAP, &cmap );
}
src/video_output/video_output.c
View file @ c4a60506
......@@ -54,6 +54,8 @@ static int Manage ( vout_thread_t *p_vout );
static int Align ( vout_thread_t *p_vout, int *pi_x,
int *pi_y, int i_width, int i_height,
int i_h_align, int i_v_align );
static void SetPalette ( p_vout_thread_t p_vout, u16 *red,
u16 *green, u16 *blue, u16 *transp );
/******************************************************************************
* vout_CreateThread: creates a new video output thread
......@@ -101,6 +103,8 @@ vout_thread_t * vout_CreateThread ( char *psz_display, int i_root_
p_vout->b_info = 0;
p_vout->b_interface = 0;
p_vout->b_scale = 0;
p_vout->p_set_palette = SetPalette;
intf_DbgMsg("wished configuration: %dx%d, %d/%d bpp (%d Bpl)\n",
p_vout->i_width, p_vout->i_height, p_vout->i_screen_depth,
......@@ -146,12 +150,12 @@ vout_thread_t * vout_CreateThread ( char *psz_display, int i_root_
MaskToShift( &p_vout->i_green_lshift, &p_vout->i_green_rshift, p_vout->i_green_mask );
MaskToShift( &p_vout->i_blue_lshift, &p_vout->i_blue_rshift, p_vout->i_blue_mask );
/* Set some usefull colors */
p_vout->i_white_pixel = RGB2PIXEL( p_vout, 255, 255, 255 );
/* Set some useful colors */
/* p_vout->i_white_pixel = RGB2PIXEL( p_vout, 255, 255, 255 );
p_vout->i_black_pixel = RGB2PIXEL( p_vout, 0, 0, 0 );
p_vout->i_gray_pixel = RGB2PIXEL( p_vout, 128, 128, 128 );
p_vout->i_blue_pixel = RGB2PIXEL( p_vout, 0, 0, 50 );
*/
/* Load fonts - fonts must be initialized after the systme method since
* they may be dependant of screen depth and other thread properties */
p_vout->p_default_font = vout_LoadFont( VOUT_DEFAULT_FONT );
......@@ -1880,3 +1884,15 @@ static int Align( vout_thread_t *p_vout, int *pi_x, int *pi_y,
(*pi_x + i_width > p_vout->i_width) || (*pi_y + i_height > p_vout->i_height) );
}
/******************************************************************************
* SetPalette: sets an 8 bpp palette
******************************************************************************
* This function is just a prototype that does nothing. Architectures that
* support palette allocation should override it.
******************************************************************************/
static void SetPalette ( p_vout_thread_t p_vout, u16 *red,
u16 *green, u16 *blue, u16 *transp )
{
intf_ErrMsg( "SetPalette: method does not support palette changing\n" );
}
src/video_output/video_text.c
View file @ c4a60506
......@@ -333,12 +333,12 @@ void vout_TextSize( vout_font_t *p_font, int i_style, const char *psz_text, int
}
}
/*******************************************************************************
/*****************************************************************************
* vout_Print: low level printing function
*******************************************************************************
* This function prints a text, without clipping, in a buffer using a previously
* loaded bitmap font.
*******************************************************************************/
*****************************************************************************
* This function prints a text, without clipping, in a buffer using a
* previously loaded bitmap font.
*****************************************************************************/
void vout_Print( vout_font_t *p_font, byte_t *p_pic, int i_bytes_per_pixel, int i_bytes_per_line,
u32 i_char_color, u32 i_border_color, u32 i_bg_color, int i_style, const char *psz_text )
{
......
src/video_output/video_yuv.c
View file @ c4a60506
......@@ -68,13 +68,15 @@ const int MATRIX_COEFFICIENTS_TABLE[8][4] =
#define RED_MARGIN 178
#define GREEN_MARGIN 135
#define BLUE_MARGIN 224
#define RED_OFFSET 1501 /* 1323 to 1935 */
#define GREEN_OFFSET 135 /* 0 to 526 */
#define BLUE_OFFSET 818 /* 594 to 1298 */
#define RGB_TABLE_SIZE 1935 /* total table size */
#define RED_OFFSET 1501 /* 1323 to 1935 */
#define GREEN_OFFSET 135 /* 0 to 526 */
#define BLUE_OFFSET 818 /* 594 to 1298 */
#define RGB_TABLE_SIZE 1935 /* total table size */
#define GRAY_MARGIN 384
#define GRAY_TABLE_SIZE 1024 /* total table size */
#define GRAY_TABLE_SIZE 1024 /* total table size */
#define PALETTE_TABLE_SIZE 2176 /* YUV -> 8bpp palette lookup table */
//??
#define SHIFT 20
......@@ -83,9 +85,9 @@ const int MATRIX_COEFFICIENTS_TABLE[8][4] =
#define V_RED_COEF ((int)(1.596 * (1<<SHIFT) / 1.164))
#define V_GREEN_COEF ((int)(-0.813 * (1<<SHIFT) / 1.164))
/*******************************************************************************
/*****************************************************************************
* Local prototypes
*******************************************************************************/
*****************************************************************************/
static void SetGammaTable ( int *pi_table, double f_gamma );
static void SetYUV ( vout_thread_t *p_vout );
static void SetOffset ( int i_width, int i_height, int i_pic_width, int i_pic_height,
......@@ -169,56 +171,56 @@ static void ConvertYUV444RGB32( p_vout_thread_t p_vout, u32 *p_pic, yuv_data
* These macros dither 4 pixels in 8 bpp, with or without horiz. scaling
*****************************************************************************/
#define CONVERT_4YUV_PIXELS( CHROMA ) \
*p_pic++ = p_vout->lookup[ \
*p_pic++ = p_lookup[ \
(((*p_y++ + dither10[i_real_y]) >> 4) << 7) \
+ ((*p_u + dither20[i_real_y]) >> 5) * 9 \
+ ((*p_v + dither20[i_real_y]) >> 5) ]; \
*p_pic++ = p_vout->lookup[ \
*p_pic++ = p_lookup[ \
(((*p_y++ + dither11[i_real_y]) >> 4) << 7) \
+ ((*p_u++ + dither21[i_real_y]) >> 5) * 9 \
+ ((*p_v++ + dither21[i_real_y]) >> 5) ]; \
*p_pic++ = p_vout->lookup[ \
*p_pic++ = p_lookup[ \
(((*p_y++ + dither12[i_real_y]) >> 4) << 7) \
+ ((*p_u + dither22[i_real_y]) >> 5) * 9 \
+ ((*p_v + dither22[i_real_y]) >> 5) ]; \
*p_pic++ = p_vout->lookup[ \
*p_pic++ = p_lookup[ \
(((*p_y++ + dither13[i_real_y]) >> 4) << 7) \
+ ((*p_u++ + dither23[i_real_y]) >> 5) * 9 \
+ ((*p_v++ + dither23[i_real_y]) >> 5) ]; \
#define CONVERT_4YUV_PIXELS_SCALE( CHROMA ) \
*p_pic++ = p_vout->lookup[ \
*p_pic++ = p_lookup[ \
(((*p_y + dither10[i_real_y]) >> 4) << 7) \
+ ((*p_u + dither20[i_real_y]) >> 5) * 9 \
+ ((*p_v + dither20[i_real_y]) >> 5) ]; \
i_jump_uv = (i_jump_uv + *p_offset) & 0x1; \
b_jump_uv = (b_jump_uv + *p_offset) & 0x1; \
p_y += *p_offset; \
p_u += *p_offset & i_jump_uv; \
p_v += *p_offset++ & i_jump_uv; \
*p_pic++ = p_vout->lookup[ \
p_u += *p_offset & b_jump_uv; \
p_v += *p_offset++ & b_jump_uv; \
*p_pic++ = p_lookup[ \
(((*p_y + dither11[i_real_y]) >> 4) << 7) \
+ ((*p_u + dither21[i_real_y]) >> 5) * 9 \
+ ((*p_v + dither21[i_real_y]) >> 5) ]; \
i_jump_uv = (i_jump_uv + *p_offset) & 0x1; \
b_jump_uv = (b_jump_uv + *p_offset) & 0x1; \
p_y += *p_offset; \
p_u += *p_offset & i_jump_uv; \
p_v += *p_offset++ & i_jump_uv; \
*p_pic++ = p_vout->lookup[ \
p_u += *p_offset & b_jump_uv; \
p_v += *p_offset++ & b_jump_uv; \
*p_pic++ = p_lookup[ \
(((*p_y + dither12[i_real_y]) >> 4) << 7) \
+ ((*p_u + dither22[i_real_y]) >> 5) * 9 \
+ ((*p_v + dither22[i_real_y]) >> 5) ]; \
i_jump_uv = (i_jump_uv + *p_offset) & 0x1; \
b_jump_uv = (b_jump_uv + *p_offset) & 0x1; \
p_y += *p_offset; \
p_u += *p_offset & i_jump_uv; \
p_v += *p_offset++ & i_jump_uv; \
*p_pic++ = p_vout->lookup[ \
p_u += *p_offset & b_jump_uv; \
p_v += *p_offset++ & b_jump_uv; \
*p_pic++ = p_lookup[ \
(((*p_y + dither13[i_real_y]) >> 4) << 7) \
+ ((*p_u + dither23[i_real_y]) >> 5) * 9 \
+ ((*p_v + dither23[i_real_y]) >> 5) ]; \
i_jump_uv = (i_jump_uv + *p_offset) & 0x1; \
b_jump_uv = (b_jump_uv + *p_offset) & 0x1; \
p_y += *p_offset; \
p_u += *p_offset & i_jump_uv; \
p_v += *p_offset++ & i_jump_uv; \
p_u += *p_offset & b_jump_uv; \
p_v += *p_offset++ & b_jump_uv; \
/*****************************************************************************
* SCALE_WIDTH: scale a line horizontally
......@@ -272,7 +274,7 @@ static void ConvertYUV444RGB32( p_vout_thread_t p_vout, u32 *p_pic, yuv_data
{ \
/* Horizontal scaling, but we can't use a buffer due to dither */ \
p_offset = p_offset_start; \
i_jump_uv = 0; \
b_jump_uv = 0; \
for( i_x = i_pic_width / 16; i_x--; ) \
{ \
CONVERT_4YUV_PIXELS_SCALE( CHROMA ) \
......@@ -440,8 +442,7 @@ int vout_InitYUV( vout_thread_t *p_vout )
switch( p_vout->i_bytes_per_pixel )
{
case 1:
/* nothing to allocate - will put the palette here afterwards */
tables_size = 1;
tables_size = sizeof( u8 ) * (p_vout->b_grayscale ? GRAY_TABLE_SIZE : PALETTE_TABLE_SIZE);
break;
case 2:
tables_size = sizeof( u16 ) * (p_vout->b_grayscale ? GRAY_TABLE_SIZE : RGB_TABLE_SIZE);
......@@ -519,7 +520,7 @@ static void SetGammaTable( int *pi_table, double f_gamma )
int i_y; /* base intensity */
/* Use exp(gamma) instead of gamma */
f_gamma = exp(f_gamma );
f_gamma = exp( f_gamma );
/* Build gamma table */
for( i_y = 0; i_y < 256; i_y++ )
......@@ -548,7 +549,30 @@ static void SetYUV( vout_thread_t *p_vout )
switch( p_vout->i_bytes_per_pixel )
{
case 1:
break;
{
u16 bright[256], transp[256];
p_vout->yuv.yuv.p_gray8 = (u8 *)p_vout->yuv.p_base + GRAY_MARGIN;
for( i_index = 0; i_index < GRAY_MARGIN; i_index++ )
{
p_vout->yuv.yuv.p_gray8[ -i_index ] = RGB2PIXEL( p_vout, pi_gamma[0], pi_gamma[0], pi_gamma[0] );
p_vout->yuv.yuv.p_gray8[ 256 + i_index ] = RGB2PIXEL( p_vout, pi_gamma[255], pi_gamma[255], pi_gamma[255] );
}
for( i_index = 0; i_index < 256; i_index++)
{
p_vout->yuv.yuv.p_gray8[ i_index ] = pi_gamma[ i_index ];
bright[ i_index ] = i_index << 8;
transp[ i_index ] = 0;
}
/* the colors have been allocated, we can set the palette */
p_vout->p_set_palette( p_vout, bright, bright, bright, transp );
p_vout->i_white_pixel = 0xff;
p_vout->i_black_pixel = 0x00;
p_vout->i_gray_pixel = 0x44;
p_vout->i_blue_pixel = 0x3b;
break;
}
case 2:
p_vout->yuv.yuv.p_gray16 = (u16 *)p_vout->yuv.p_base + GRAY_MARGIN;
for( i_index = 0; i_index < GRAY_MARGIN; i_index++ )
......@@ -582,7 +606,123 @@ static void SetYUV( vout_thread_t *p_vout )
switch( p_vout->i_bytes_per_pixel )
{
case 1:
break;
{
#define RGB_MIN 0
#define RGB_MAX 255
#define SATURATE( x ) \
x = x + ( x >> 3 ) - 16; \
if( x < 0 ) x = 0; \
if( x > 255 ) x = 255;
int y,u,v;
int r,g,b;
int uvr, uvg, uvb;
int i = 0, j = 0;
u16 red[256], green[256], blue[256], transp[256];
unsigned char lookup[PALETTE_TABLE_SIZE];
p_vout->yuv.yuv.p_rgb8 = (u8 *)p_vout->yuv.p_base;
/* this loop calculates the intersection of an YUV box
* and the RGB cube. */
for ( y = 0; y <= 256; y += 16 )
{
for ( u = 0; u <= 256; u += 32 )
for ( v = 0; v <= 256; v += 32 )
{
uvr = (V_RED_COEF*(v-128)) >> SHIFT;
uvg = (U_GREEN_COEF*(u-128) + V_GREEN_COEF*(v-128)) >> SHIFT;
uvb = (U_BLUE_COEF*(u-128)) >> SHIFT;
r = y + uvr;
g = y + uvg;
b = y + uvb;
if( r >= RGB_MIN && g >= RGB_MIN && b >= RGB_MIN
&& r <= RGB_MAX && g <= RGB_MAX && b <= RGB_MAX )
{
/* this one should never happen unless someone fscked up my code */
if(j == 256) { intf_DbgMsg( "sorry, no colors left\n" ); exit( 1 ); }
/* saturate the colors */
SATURATE( r );
SATURATE( g );
SATURATE( b );
red[j] = r << 8;
green[j] = g << 8;
blue[j] = b << 8;
transp[j] = 0;
/* allocate color */
lookup[i] = 1;
p_vout->yuv.yuv.p_rgb8[i++] = j;
j++;
}
else
{
lookup[i] = 0;
p_vout->yuv.yuv.p_rgb8[i++] = 0;
}
}
i += 128-81;
}
/* the colors have been allocated, we can set the palette */
/* there will eventually be a way to know which colors
* couldn't be allocated and try to find a replacement */
p_vout->p_set_palette( p_vout, red, green, blue, transp );
p_vout->i_white_pixel = 0xff;
p_vout->i_black_pixel = 0x00;
p_vout->i_gray_pixel = 0x44;
p_vout->i_blue_pixel = 0x3b;
i = 0;
/* this loop allocates colors that got outside
* the RGB cube */
for ( y = 0; y <= 256; y += 16 )
{
for ( u = 0; u <= 256; u += 32 )
for ( v = 0; v <= 256; v += 32 )
{
int u2, v2;
int dist, mindist = 100000000;
if( lookup[i] || y==0)
{
i++;
continue;
}
/* heavy. yeah. */
for( u2 = 0; u2 <= 256; u2 += 32 )
for( v2 = 0; v2 <= 256; v2 += 32 )
{
j = ((y>>4)<<7) + (u2>>5)*9 + (v2>>5);
dist = (u-u2)*(u-u2) + (v-v2)*(v-v2);
if( lookup[j] )
/* find the nearest color */
if( dist < mindist )
{
p_vout->yuv.yuv.p_rgb8[i] = p_vout->yuv.yuv.p_rgb8[j];
mindist = dist;
}
j -= 128;
if( lookup[j] )
/* find the nearest color */
if( dist + 128 < mindist )
{
p_vout->yuv.yuv.p_rgb8[i] = p_vout->yuv.yuv.p_rgb8[j];
mindist = dist + 128;
}
}
i++;
}
i += 128-81;
}
break;
}
case 2:
p_vout->yuv.yuv.p_rgb16 = (u16 *)p_vout->yuv.p_base;
for( i_index = 0; i_index < RED_MARGIN; i_index++ )
......@@ -808,14 +948,14 @@ static void ConvertY4Gray8( p_vout_thread_t p_vout, u8 *p_pic, yuv_data_t *p_y,
* pixels wide blocks */
for( i_x = i_width / 16; i_x--; )
{
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = *p_y++; *p_buffer++ = *p_y++;
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
*p_buffer++ = p_gray[ *p_y++ ]; *p_buffer++ = p_gray[ *p_y++ ];
}
/* Do horizontal and vertical scaling */
......@@ -965,8 +1105,9 @@ static void ConvertYUV420RGB8( p_vout_thread_t p_vout, u8 *p_pic, yuv_data_t *p_
int i_vertical_scaling; /* vertical scaling type */
int i_x, i_y; /* horizontal and vertical indexes */
int i_scale_count; /* scale modulo counter */
int i_jump_uv;
int i_real_y;
int b_jump_uv; /* should we jump u and v ? */
int i_real_y; /* y % 4 */
u8 * p_lookup; /* lookup table */
int i_chroma_width; /* chroma width */
int * p_offset_start; /* offset array start */
int * p_offset; /* offset array pointer */
......@@ -980,6 +1121,7 @@ static void ConvertYUV420RGB8( p_vout_thread_t p_vout, u8 *p_pic, yuv_data_t *p_
int dither22[4] = { 0x06, 0x16, 0x02, 0x12 };
int dither23[4] = { 0x1e, 0x0e, 0x1a, 0x0a };
/* other matrices that can be interesting, either for debugging or for effects */
//int dither[4][4] = { { 0, 8, 2, 10 }, { 12, 4, 14, 16 }, { 3, 11, 1, 9}, {15, 7, 13, 5} };
//int dither[4][4] = { { 7, 8, 0, 15 }, { 0, 15, 8, 7 }, { 7, 0, 15, 8 }, { 15, 7, 8, 0 } };
//int dither[4][4] = { { 0, 15, 0, 15 }, { 15, 0, 15, 0 }, { 0, 15, 0, 15 }, { 15, 0, 15, 0 } };
......@@ -991,7 +1133,8 @@ static void ConvertYUV420RGB8( p_vout_thread_t p_vout, u8 *p_pic, yuv_data_t *p_
*/
i_pic_line_width -= i_pic_width;
i_chroma_width = i_width / 2;
p_offset_start = p_vout->yuv.p_offset;
p_offset_start = p_vout->yuv.p_offset;
p_lookup = p_vout->yuv.p_base;
SetOffset( i_width, i_height, i_pic_width, i_pic_height,
&b_horizontal_scaling, &i_vertical_scaling, p_offset_start );
......
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