/*****************************************************************************
* video_yuv.c: YUV transformation functions
- * (c)1999 VideoLAN
- *****************************************************************************
* Provides functions to perform the YUV conversion. The functions provided here
* are a complete and portable C implementation, and may be replaced in certain
* case by optimized functions.
+ *****************************************************************************
+ * Copyright (C) 1999, 2000 VideoLAN
+ *
+ * Authors:
+ *
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <math.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
+#include "defs.h"
+
+#include <math.h> /* exp(), pow() */
+#include <errno.h> /* ENOMEM */
+#include <stdlib.h> /* free() */
+#include <string.h> /* strerror() */
-#include "common.h"
#include "config.h"
+#include "common.h"
+#include "threads.h"
#include "mtime.h"
-#include "vlc_thread.h"
+#include "plugins.h"
#include "video.h"
#include "video_output.h"
#include "video_yuv.h"
+
#include "intf_msg.h"
/*****************************************************************************
* Constants
*****************************************************************************/
-/* Color masks for different color depths - 8bpp masks can be choosen, since
- * colormaps instead of hardware-defined colors are used. */
-//?? remove
-#define RED_8BPP_MASK 0xe0
-#define GREEN_8BPP_MASK 0x1c
-#define BLUE_8BPP_MASK 0x03
-
-#define RED_15BPP_MASK 0xf800
-#define GREEN_15BPP_MASK 0x03e0
-#define BLUE_15BPP_MASK 0x001f
-
-#define RED_16BPP_MASK 0xf800
-#define GREEN_16BPP_MASK 0x07e0
-#define BLUE_16BPP_MASK 0x001f
-
-#define RED_24BPP_MASK 0xff0000
-#define GREEN_24BPP_MASK 0x00ff00
-#define BLUE_24BPP_MASK 0x0000ff
-
-/* RGB/YUV inversion matrix (ISO/IEC 13818-2 section 6.3.6, table 6.9) */
-//?? no more used ?
-const int MATRIX_COEFFICIENTS_TABLE[8][4] =
-{
- {117504, 138453, 13954, 34903}, /* no sequence_display_extension */
- {117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
- {104597, 132201, 25675, 53279}, /* unspecified */
- {104597, 132201, 25675, 53279}, /* reserved */
- {104448, 132798, 24759, 53109}, /* FCC */
- {104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
- {104597, 132201, 25675, 53279}, /* SMPTE 170M */
- {117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
-};
-
/* Margins and offsets in conversion tables - Margins are used in case a RGB
* RGB conversion would give a value outside the 0-255 range. Offsets have been
* calculated to avoid using the same cache line for 2 tables. conversion tables
#define PALETTE_TABLE_SIZE 2176 /* YUV -> 8bpp palette lookup table */
-//??
+/* macros used for YUV pixel conversions */
#define SHIFT 20
#define U_GREEN_COEF ((int)(-0.391 * (1<<SHIFT) / 1.164))
#define U_BLUE_COEF ((int)(2.018 * (1<<SHIFT) / 1.164))
#define V_RED_COEF ((int)(1.596 * (1<<SHIFT) / 1.164))
#define V_GREEN_COEF ((int)(-0.813 * (1<<SHIFT) / 1.164))
+//#define NODITHER
+
/*****************************************************************************
* Local prototypes
*****************************************************************************/
{
#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;
+ #define CLIP( x ) ( ((x < 0) ? 0 : (x > 255) ? 255 : x) << 8 )
int y,u,v;
int r,g,b;
&& 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 ); }
+ if(j == 256) { intf_ErrMsg( "vout error: no colors left to build palette\n" ); break; }
- /* saturate the colors */
- SATURATE( r );
- SATURATE( g );
- SATURATE( b );
-
- red[j] = r << 8;
- green[j] = g << 8;
- blue[j] = b << 8;
+ /* clip the colors */
+ red[j] = CLIP( r );
+ green[j] = CLIP( g );
+ blue[j] = CLIP( b );
transp[j] = 0;
/* allocate color */
int i_width, int i_height, int i_pic_width, int i_pic_height, int i_pic_line_width,
int i_matrix_coefficients )
{
- //??
+ /* XXX?? */
}
/*****************************************************************************
int * p_offset_start; /* offset array start */
int * p_offset; /* offset array pointer */
- int dither10[4] = { 0x0, 0x8, 0x2, 0xa };
- int dither11[4] = { 0xc, 0x4, 0xe, 0x6 };
- int dither12[4] = { 0x3, 0xb, 0x1, 0x9 };
- int dither13[4] = { 0xf, 0x7, 0xd, 0x5 };
- int dither20[4] = { 0x00, 0x10, 0x04, 0x14 };
- int dither21[4] = { 0x18, 0x08, 0x1c, 0x0c };
- 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 } };
- //int dither[4][4] = { { 15, 15, 0, 0 }, { 15, 15, 0, 0 }, { 0, 0, 15, 15 }, { 0, 0, 15, 15 } };
- //int dither[4][4] = { { 8, 8, 8, 8 }, { 8, 8, 8, 8 }, { 8, 8, 8, 8 }, { 8, 8, 8, 8 } };
- //int dither[4][4] = { { 0, 1, 2, 3 }, { 4, 5, 6, 7 }, { 8, 9, 10, 11 }, { 12, 13, 14, 15 } };
+#ifdef NODITHER
+ int dither10[4] = { 0x7, 0x8, 0x7, 0x8 };
+ int dither11[4] = { 0x8, 0x7, 0x8, 0x7 };
+ int dither12[4] = { 0x7, 0x8, 0x7, 0x8 };
+ int dither13[4] = { 0x8, 0x7, 0x8, 0x7 };
+
+ int dither20[4] = { 0xf, 0x10, 0xf, 0x10 };
+ int dither21[4] = { 0x10, 0xf, 0x10, 0xf };
+ int dither22[4] = { 0xf, 0x10, 0xf, 0x10 };
+ int dither23[4] = { 0x10, 0xf, 0x10, 0xf };
+#else
+ int dither10[4] = { 0x0, 0x8, 0x2, 0xa };
+ int dither11[4] = { 0xc, 0x4, 0xe, 0x6 };
+ int dither12[4] = { 0x3, 0xb, 0x1, 0x9 };
+ int dither13[4] = { 0xf, 0x7, 0xd, 0x5 };
+
+ int dither20[4] = { 0x0, 0x10, 0x4, 0x14 };
+ int dither21[4] = { 0x18, 0x8, 0x1c, 0xc };
+ int dither22[4] = { 0x6, 0x16, 0x2, 0x12 };
+ int dither23[4] = { 0x1e, 0xe, 0x1a, 0xa };
+#endif
+
+ /* some other matrices that can be interesting, either for debugging
+ * or for effects :
+ *
+ * { { 0, 8, 2, 10 }, { 12, 4, 14, 16 }, { 3, 11, 1, 9}, {15, 7, 13, 5} }
+ * { { 7, 8, 0, 15 }, { 0, 15, 8, 7 }, { 7, 0, 15, 8 }, { 15, 7, 8, 0 } }
+ * { { 0, 15, 0, 15 }, { 15, 0, 15, 0 }, { 0, 15, 0, 15 }, { 15, 0, 15, 0 } }
+ * { { 15, 15, 0, 0 }, { 15, 15, 0, 0 }, { 0, 0, 15, 15 }, { 0, 0, 15, 15 } }
+ * { { 8, 8, 8, 8 }, { 8, 8, 8, 8 }, { 8, 8, 8, 8 }, { 8, 8, 8, 8 } }
+ * { { 0, 1, 2, 3 }, { 4, 5, 6, 7 }, { 8, 9, 10, 11 }, { 12, 13, 14, 15 } }
+ */
+
/*
* Initialize some values - i_pic_line_width will store the line skip
*/
int i_width, int i_height, int i_pic_width, int i_pic_height, int i_pic_line_width,
int i_matrix_coefficients )
{
-/* MMX version */
- // int i_chroma_width, i_chroma_skip; /* width and eol for chroma */
-/*
+#if 0
+ /* MMX version */
+ int i_chroma_width, i_chroma_skip; /* width and eol for chroma */
+
i_chroma_width = i_width / 2;
i_chroma_skip = i_skip / 2;
ConvertYUV420RGB16MMX( p_y, p_u, p_v, i_width, i_height,
(i_chroma_width + i_chroma_skip) * sizeof( yuv_data_t),
i_scale, (u8 *)p_pic, 0, 0, (i_width + i_pic_eol) * sizeof( u16 ),
p_vout->i_screen_depth == 15 );
-*/
+#endif
boolean_t b_horizontal_scaling; /* horizontal scaling type */
int i_vertical_scaling; /* vertical scaling type */
int i_x, i_y; /* horizontal and vertical indexes */
int i_width, int i_height, int i_pic_width, int i_pic_height, int i_pic_line_width,
int i_matrix_coefficients )
{
- //???
+ /* XXX?? */
}
/*****************************************************************************
int i_width, int i_height, int i_pic_width, int i_pic_height, int i_pic_line_width,
int i_matrix_coefficients )
{
- //???
+ /* XXX?? */
}
/*****************************************************************************
int i_width, int i_height, int i_pic_width, int i_pic_height, int i_pic_line_width,
int i_matrix_coefficients )
{
- //???
+ /* XXX?? */
}
/*****************************************************************************
}
}
-//-------------------- walken code follows ------------------------------------
+/*-------------------- walken code follows ----------------------------------*/
/*
* YUV to RGB routines.
*/
#if 0
-//??
+/* XXX?? */
static void yuvToRgb24 (unsigned char * Y,
unsigned char * U, unsigned char * V,
char * dest, int table[1935], int width)
projects / vlc / blobdiff