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584 lines
19 KiB
584 lines
19 KiB
15 years ago
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/*
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* rgb.c
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* Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
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* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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*
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* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
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* See http://libmpeg2.sourceforge.net/ for updates.
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*
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* mpeg2dec is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpeg2dec is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "k9common.h"
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#include "attributes.h"
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#include "mpeg2.h"
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#include "mpeg2convert.h"
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#include "convert_internal.h"
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static int matrix_coefficients = 6;
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static const int Inverse_Table_6_9[8][4] = {
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{117504, 138453, 13954, 34903}, /* no sequence_display_extension */
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{117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
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{104597, 132201, 25675, 53279}, /* unspecified */
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{104597, 132201, 25675, 53279}, /* reserved */
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{104448, 132798, 24759, 53109}, /* FCC */
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{104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
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{104597, 132201, 25675, 53279}, /* SMPTE 170M */
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{117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
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};
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static const uint8_t dither[] ATTR_ALIGN(32) = {
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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15, 36, 7, 18, 21, 50, 13, 31, 17, 39, 9, 21, 22, 53, 15, 35,
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15, 36, 7, 18, 21, 50, 13, 31, 17, 39, 9, 21, 22, 53, 15, 35,
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15, 36, 7, 18, 21, 50, 13, 31, 17, 39, 9, 21, 22, 53, 15, 35,
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15, 36, 7, 18, 21, 50, 13, 31, 17, 39, 9, 21, 22, 53, 15, 35,
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3, 9, 27, 63, 1, 4, 25, 59, 5, 12, 28, 67, 3, 7, 26, 62,
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3, 9, 27, 63, 1, 4, 25, 59, 5, 12, 28, 67, 3, 7, 26, 62,
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3, 9, 27, 63, 1, 4, 25, 59, 5, 12, 28, 67, 3, 7, 26, 62,
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3, 9, 27, 63, 1, 4, 25, 59, 5, 12, 28, 67, 3, 7, 26, 62,
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19, 45, 11, 27, 17, 41, 9, 22, 21, 49, 13, 30, 19, 44, 11, 26,
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19, 45, 11, 27, 17, 41, 9, 22, 21, 49, 13, 30, 19, 44, 11, 26,
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19, 45, 11, 27, 17, 41, 9, 22, 21, 49, 13, 30, 19, 44, 11, 26,
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19, 45, 11, 27, 17, 41, 9, 22, 21, 49, 13, 30, 19, 44, 11, 26,
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0, 2, 24, 57, 6, 15, 30, 70, 0, 1, 23, 55, 6, 14, 29, 69,
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0, 2, 24, 57, 6, 15, 30, 70, 0, 1, 23, 55, 6, 14, 29, 69,
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0, 2, 24, 57, 6, 15, 30, 70, 0, 1, 23, 55, 6, 14, 29, 69,
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0, 2, 24, 57, 6, 15, 30, 70, 0, 1, 23, 55, 6, 14, 29, 69,
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16, 38, 8, 20, 22, 52, 14, 34, 16, 37, 8, 19, 21, 51, 14, 33,
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16, 38, 8, 20, 22, 52, 14, 34, 16, 37, 8, 19, 21, 51, 14, 33,
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16, 38, 8, 20, 22, 52, 14, 34, 16, 37, 8, 19, 21, 51, 14, 33,
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16, 38, 8, 20, 22, 52, 14, 34, 16, 37, 8, 19, 21, 51, 14, 33,
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4, 11, 28, 66, 2, 6, 26, 61, 4, 10, 27, 65, 2, 5, 25, 60,
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4, 11, 28, 66, 2, 6, 26, 61, 4, 10, 27, 65, 2, 5, 25, 60,
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4, 11, 28, 66, 2, 6, 26, 61, 4, 10, 27, 65, 2, 5, 25, 60,
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4, 11, 28, 66, 2, 6, 26, 61, 4, 10, 27, 65, 2, 5, 25, 60,
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20, 47, 12, 29, 18, 43, 10, 25, 20, 46, 12, 28, 18, 42, 10, 23,
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20, 47, 12, 29, 18, 43, 10, 25, 20, 46, 12, 28, 18, 42, 10, 23,
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20, 47, 12, 29, 18, 43, 10, 25, 20, 46, 12, 28, 18, 42, 10, 23,
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20, 47, 12, 29, 18, 43, 10, 25, 20, 46, 12, 28, 18, 42, 10, 23,
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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0, 0, 23, 54, 5, 13, 29, 68, 1, 3, 24, 58, 7, 17, 30, 71,
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15, 36, 7, 18, 21, 50, 13, 31, 17, 39, 9, 21, 22, 53, 15, 35,
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15, 36, 7, 18, 21, 50, 13, 31, 17, 39, 9, 21, 22, 53, 15, 35
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};
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static const uint8_t dither_temporal[64] = {
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0x00, 0x20, 0x21, 0x01, 0x40, 0x60, 0x61, 0x41,
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0x42, 0x62, 0x63, 0x43, 0x02, 0x22, 0x23, 0x03,
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0x80, 0xa0, 0xa1, 0x81, 0xc0, 0xe0, 0xe1, 0xc1,
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0xc2, 0xe2, 0xe3, 0xc3, 0x82, 0xa2, 0xa3, 0x83,
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0x84, 0xa4, 0xa5, 0x85, 0xc4, 0xe4, 0xe5, 0xc5,
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0xc6, 0xe6, 0xe7, 0xc7, 0x86, 0xa6, 0xa7, 0x87,
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0x04, 0x24, 0x25, 0x05, 0x44, 0x64, 0x65, 0x45,
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0x46, 0x66, 0x67, 0x47, 0x06, 0x26, 0x27, 0x07
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};
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typedef struct {
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convert_rgb_t base;
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void * table_rV[256];
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void * table_gU[256];
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int table_gV[256];
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void * table_bU[256];
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} convert_rgb_c_t;
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#define RGB(type,i) \
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U = pu[i]; \
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V = pv[i]; \
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r = (type *) id->table_rV[V]; \
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g = (type *) (((uint8_t *)id->table_gU[U]) + id->table_gV[V]); \
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b = (type *) id->table_bU[U];
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#define DST(py,dst,i,j) \
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Y = py[i]; \
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dst[i] = r[Y] + g[Y] + b[Y];
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#define DSTRGB(py,dst,i,j) \
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Y = py[i]; \
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dst[3*i] = r[Y]; dst[3*i+1] = g[Y]; dst[3*i+2] = b[Y];
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#define DSTBGR(py,dst,i,j) \
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Y = py[i]; \
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dst[3*i] = b[Y]; dst[3*i+1] = g[Y]; dst[3*i+2] = r[Y];
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#define DSTDITHER(py,dst,i,j) \
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Y = py[i]; \
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dst[i] = r[Y+pd[2*i+96*j]] + g[Y-pd[2*i+96*j]] + b[Y+pd[2*i+1+96*j]];
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#define DO(x) x
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#define SKIP(x)
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#define DECLARE_420(func,type,num,DST,DITHER) \
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static void func (void * _id, uint8_t * const * src, \
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unsigned int v_offset) \
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{ \
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const convert_rgb_c_t * const id = (convert_rgb_c_t *) _id; \
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type * dst_1; \
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const uint8_t * py_1, * pu, * pv; \
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int i; \
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DITHER(uint8_t dithpos = id->base.dither_offset;) \
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\
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dst_1 = (type *)(id->base.rgb_ptr + id->base.rgb_stride * v_offset);\
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py_1 = src[0]; pu = src[1]; pv = src[2]; \
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\
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i = 8; \
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do { \
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const uint8_t * py_2; \
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int j, U, V, Y; \
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const type * r, * g, * b; \
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type * dst_2; \
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DITHER(const uint8_t * const pd = dither + 2 * dithpos;) \
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\
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dst_2 = (type *)((char *)dst_1 + id->base.rgb_stride); \
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py_2 = py_1 + id->base.y_stride; \
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j = id->base.width; \
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do { \
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RGB (type, 0) \
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DST (py_1, dst_1, 0, 0) \
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DST (py_1, dst_1, 1, 0) \
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DST (py_2, dst_2, 0, 1) \
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DST (py_2, dst_2, 1, 1) \
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\
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RGB (type, 1) \
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DST (py_2, dst_2, 2, 1) \
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DST (py_2, dst_2, 3, 1) \
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DST (py_1, dst_1, 2, 0) \
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DST (py_1, dst_1, 3, 0) \
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\
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RGB (type, 2) \
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DST (py_1, dst_1, 4, 0) \
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DST (py_1, dst_1, 5, 0) \
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DST (py_2, dst_2, 4, 1) \
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DST (py_2, dst_2, 5, 1) \
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\
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RGB (type, 3) \
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DST (py_2, dst_2, 6, 1) \
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DST (py_2, dst_2, 7, 1) \
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DST (py_1, dst_1, 6, 0) \
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DST (py_1, dst_1, 7, 0) \
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\
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pu += 4; \
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pv += 4; \
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py_1 += 8; \
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py_2 += 8; \
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dst_1 += 8 * num; \
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dst_2 += 8 * num; \
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} while (--j); \
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py_1 += id->base.y_increm; \
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pu += id->base.uv_increm; \
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pv += id->base.uv_increm; \
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dst_1 = (type *)((char *)dst_1 + id->base.rgb_increm); \
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DITHER(dithpos += id->base.dither_stride;) \
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} while (--i); \
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}
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DECLARE_420 (rgb_c_32_420, uint32_t, 1, DST, SKIP)
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DECLARE_420 (rgb_c_24_rgb_420, uint8_t, 3, DSTRGB, SKIP)
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DECLARE_420 (rgb_c_24_bgr_420, uint8_t, 3, DSTBGR, SKIP)
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DECLARE_420 (rgb_c_16_420, uint16_t, 1, DST, SKIP)
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DECLARE_420 (rgb_c_8_420, uint8_t, 1, DSTDITHER, DO)
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#define DECLARE_422(func,type,num,DST,DITHER) \
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static void func (void * _id, uint8_t * const * src, \
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unsigned int v_offset) \
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{ \
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const convert_rgb_c_t * const id = (convert_rgb_c_t *) _id; \
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type * dst; \
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const uint8_t * py, * pu, * pv; \
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int i; \
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DITHER(uint8_t dithpos = id->base.dither_offset;) \
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\
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dst = (type *)(id->base.rgb_ptr + id->base.rgb_stride * v_offset); \
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py = src[0]; pu = src[1]; pv = src[2]; \
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\
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i = 16; \
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do { \
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int j, U, V, Y; \
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const type * r, * g, * b; \
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DITHER(const uint8_t * const pd = dither + 2 * dithpos;) \
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\
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j = id->base.width; \
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do { \
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RGB (type, 0) \
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DST (py, dst, 0, 0) \
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DST (py, dst, 1, 0) \
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\
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RGB (type, 1) \
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DST (py, dst, 2, 0) \
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DST (py, dst, 3, 0) \
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\
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RGB (type, 2) \
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DST (py, dst, 4, 0) \
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DST (py, dst, 5, 0) \
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\
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RGB (type, 3) \
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DST (py, dst, 6, 0) \
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DST (py, dst, 7, 0) \
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\
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pu += 4; \
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pv += 4; \
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py += 8; \
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dst += 8 * num; \
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} while (--j); \
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py += id->base.y_increm; \
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pu += id->base.uv_increm; \
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pv += id->base.uv_increm; \
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dst = (type *)((char *)dst + id->base.rgb_increm); \
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DITHER(dithpos += id->base.dither_stride;) \
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} while (--i); \
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}
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DECLARE_422 (rgb_c_32_422, uint32_t, 1, DST, SKIP)
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DECLARE_422 (rgb_c_24_rgb_422, uint8_t, 3, DSTRGB, SKIP)
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DECLARE_422 (rgb_c_24_bgr_422, uint8_t, 3, DSTBGR, SKIP)
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DECLARE_422 (rgb_c_16_422, uint16_t, 1, DST, SKIP)
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DECLARE_422 (rgb_c_8_422, uint8_t, 1, DSTDITHER, DO)
|
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||
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#define DECLARE_444(func,type,num,DST,DITHER) \
|
||
|
|
static void func (void * _id, uint8_t * const * src, \
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|
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unsigned int v_offset) \
|
||
|
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{ \
|
||
|
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const convert_rgb_c_t * const id = (convert_rgb_c_t *) _id; \
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type * dst; \
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const uint8_t * py, * pu, * pv; \
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int i; \
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DITHER(uint8_t dithpos = id->base.dither_offset;) \
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\
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dst = (type *)(id->base.rgb_ptr + id->base.rgb_stride * v_offset); \
|
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py = src[0]; pu = src[1]; pv = src[2]; \
|
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\
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i = 16; \
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do { \
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int j, U, V, Y; \
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|
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const type * r, * g, * b; \
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DITHER(const uint8_t * const pd = dither + 2 * dithpos;) \
|
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|
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\
|
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j = id->base.width; \
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do { \
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RGB (type, 0) \
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||
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DST (py, dst, 0, 0) \
|
||
|
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RGB (type, 1) \
|
||
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DST (py, dst, 1, 0) \
|
||
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RGB (type, 2) \
|
||
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DST (py, dst, 2, 0) \
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RGB (type, 3) \
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|
|
DST (py, dst, 3, 0) \
|
||
|
|
RGB (type, 4) \
|
||
|
|
DST (py, dst, 4, 0) \
|
||
|
|
RGB (type, 5) \
|
||
|
|
DST (py, dst, 5, 0) \
|
||
|
|
RGB (type, 6) \
|
||
|
|
DST (py, dst, 6, 0) \
|
||
|
|
RGB (type, 7) \
|
||
|
|
DST (py, dst, 7, 0) \
|
||
|
|
\
|
||
|
|
pu += 8; \
|
||
|
|
pv += 8; \
|
||
|
|
py += 8; \
|
||
|
|
dst += 8 * num; \
|
||
|
|
} while (--j); \
|
||
|
|
py += id->base.y_increm; \
|
||
|
|
pu += id->base.y_increm; \
|
||
|
|
pv += id->base.y_increm; \
|
||
|
|
dst = (type *)((char *)dst + id->base.rgb_increm); \
|
||
|
|
DITHER(dithpos += id->base.dither_stride;) \
|
||
|
|
} while (--i); \
|
||
|
|
}
|
||
|
|
|
||
|
|
DECLARE_444 (rgb_c_32_444, uint32_t, 1, DST, SKIP)
|
||
|
|
DECLARE_444 (rgb_c_24_rgb_444, uint8_t, 3, DSTRGB, SKIP)
|
||
|
|
DECLARE_444 (rgb_c_24_bgr_444, uint8_t, 3, DSTBGR, SKIP)
|
||
|
|
DECLARE_444 (rgb_c_16_444, uint16_t, 1, DST, SKIP)
|
||
|
|
DECLARE_444 (rgb_c_8_444, uint8_t, 1, DSTDITHER, DO)
|
||
|
|
|
||
|
|
static void rgb_start (void * _id, const mpeg2_fbuf_t * fbuf,
|
||
|
|
const mpeg2_picture_t * picture,
|
||
|
|
const mpeg2_gop_t * gop)
|
||
|
|
{
|
||
|
|
convert_rgb_t * id = (convert_rgb_t *) _id;
|
||
|
|
int uv_stride = id->uv_stride_frame;
|
||
|
|
id->y_stride = id->y_stride_frame;
|
||
|
|
id->rgb_ptr = fbuf->buf[0];
|
||
|
|
id->rgb_stride = id->rgb_stride_frame;
|
||
|
|
id->dither_stride = 32;
|
||
|
|
id->dither_offset = dither_temporal[picture->temporal_reference & 63];
|
||
|
|
if (picture->nb_fields == 1) {
|
||
|
|
uv_stride <<= 1;
|
||
|
|
id->y_stride <<= 1;
|
||
|
|
id->rgb_stride <<= 1;
|
||
|
|
id->dither_stride <<= 1;
|
||
|
|
id->dither_offset += 16;
|
||
|
|
if (!(picture->flags & PIC_FLAG_TOP_FIELD_FIRST)) {
|
||
|
|
id->rgb_ptr += id->rgb_stride_frame;
|
||
|
|
id->dither_offset += 32;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
id->y_increm = (id->y_stride << id->convert420) - id->y_stride_frame;
|
||
|
|
id->uv_increm = uv_stride - id->uv_stride_frame;
|
||
|
|
id->rgb_increm = (id->rgb_stride << id->convert420) - id->rgb_stride_min;
|
||
|
|
id->dither_stride <<= id->convert420;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int div_round (int dividend, int divisor)
|
||
|
|
{
|
||
|
|
if (dividend > 0)
|
||
|
|
return (dividend + (divisor>>1)) / divisor;
|
||
|
|
else
|
||
|
|
return -((-dividend + (divisor>>1)) / divisor);
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned int rgb_c_init (convert_rgb_c_t * id,
|
||
|
|
mpeg2convert_rgb_order_t order,
|
||
|
|
unsigned int bpp)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
uint8_t table_Y[1024];
|
||
|
|
uint32_t * table_32 = 0;
|
||
|
|
uint16_t * table_16 = 0;
|
||
|
|
uint8_t * table_8 = 0;
|
||
|
|
uint8_t * table_332 = 0;
|
||
|
|
int entry_size = 0;
|
||
|
|
void * table_r = 0;
|
||
|
|
void * table_g = 0;
|
||
|
|
void * table_b = 0;
|
||
|
|
|
||
|
|
int crv = Inverse_Table_6_9[matrix_coefficients][0];
|
||
|
|
int cbu = Inverse_Table_6_9[matrix_coefficients][1];
|
||
|
|
int cgu = -Inverse_Table_6_9[matrix_coefficients][2];
|
||
|
|
int cgv = -Inverse_Table_6_9[matrix_coefficients][3];
|
||
|
|
|
||
|
|
for (i = 0; i < 1024; i++) {
|
||
|
|
int j;
|
||
|
|
|
||
|
|
j = (76309 * (i - 384 - 16) + 32768) >> 16;
|
||
|
|
table_Y[i] = (j < 0) ? 0 : ((j > 255) ? 255 : j);
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (bpp) {
|
||
|
|
case 32:
|
||
|
|
if (!id)
|
||
|
|
return (197 + 2*682 + 256 + 132) * sizeof (uint32_t);
|
||
|
|
table_32 = (uint32_t *) (id + 1);
|
||
|
|
entry_size = sizeof (uint32_t);
|
||
|
|
table_r = table_32 + 197;
|
||
|
|
table_b = table_32 + 197 + 685;
|
||
|
|
table_g = table_32 + 197 + 2*682;
|
||
|
|
|
||
|
|
for (i = -197; i < 256+197; i++)
|
||
|
|
((uint32_t *) table_r)[i] =
|
||
|
|
table_Y[i+384] << ((order == MPEG2CONVERT_RGB) ? 16 : 0);
|
||
|
|
for (i = -132; i < 256+132; i++)
|
||
|
|
((uint32_t *) table_g)[i] = table_Y[i+384] << 8;
|
||
|
|
for (i = -232; i < 256+232; i++)
|
||
|
|
((uint32_t *) table_b)[i] =
|
||
|
|
table_Y[i+384] << ((order == MPEG2CONVERT_RGB) ? 0 : 16);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 24:
|
||
|
|
if (!id)
|
||
|
|
return (256 + 2*232) * sizeof (uint8_t);
|
||
|
|
table_8 = (uint8_t *) (id + 1);
|
||
|
|
entry_size = sizeof (uint8_t);
|
||
|
|
table_r = table_g = table_b = table_8 + 232;
|
||
|
|
|
||
|
|
for (i = -232; i < 256+232; i++)
|
||
|
|
((uint8_t * )table_b)[i] = table_Y[i+384];
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 15:
|
||
|
|
case 16:
|
||
|
|
if (!id)
|
||
|
|
return (197 + 2*682 + 256 + 132) * sizeof (uint16_t);
|
||
|
|
table_16 = (uint16_t *) (id + 1);
|
||
|
|
entry_size = sizeof (uint16_t);
|
||
|
|
table_r = table_16 + 197;
|
||
|
|
table_b = table_16 + 197 + 685;
|
||
|
|
table_g = table_16 + 197 + 2*682;
|
||
|
|
|
||
|
|
for (i = -197; i < 256+197; i++) {
|
||
|
|
int j = table_Y[i+384] >> 3;
|
||
|
|
|
||
|
|
if (order == MPEG2CONVERT_RGB)
|
||
|
|
j <<= ((bpp==16) ? 11 : 10);
|
||
|
|
|
||
|
|
((uint16_t *)table_r)[i] = j;
|
||
|
|
}
|
||
|
|
for (i = -132; i < 256+132; i++) {
|
||
|
|
int j = table_Y[i+384] >> ((bpp==16) ? 2 : 3);
|
||
|
|
|
||
|
|
((uint16_t *)table_g)[i] = j << 5;
|
||
|
|
}
|
||
|
|
for (i = -232; i < 256+232; i++) {
|
||
|
|
int j = table_Y[i+384] >> 3;
|
||
|
|
|
||
|
|
if (order == MPEG2CONVERT_BGR)
|
||
|
|
j <<= ((bpp==16) ? 11 : 10);
|
||
|
|
|
||
|
|
((uint16_t *)table_b)[i] = j;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 8:
|
||
|
|
if (!id)
|
||
|
|
return (197 + 2*682 + 256 + 232 + 71) * sizeof (uint8_t);
|
||
|
|
table_332 = (uint8_t *) (id + 1);
|
||
|
|
entry_size = sizeof (uint8_t);
|
||
|
|
table_r = table_332 + 197;
|
||
|
|
table_g = table_332 + 197 + 682 + 30;
|
||
|
|
table_b = table_332 + 197 + 2*682;
|
||
|
|
|
||
|
|
for (i = -197; i < 256+197+30; i++)
|
||
|
|
((uint8_t *)table_r)[i] = ((table_Y[i+384] * 7 / 255) <<
|
||
|
|
(order == MPEG2CONVERT_RGB ? 5 : 0));
|
||
|
|
for (i = -132; i < 256+132+30; i++)
|
||
|
|
((uint8_t *)table_g)[i-30] = ((table_Y[i+384] * 7 / 255) <<
|
||
|
|
(order == MPEG2CONVERT_RGB ? 2 : 3));
|
||
|
|
for (i = -232; i < 256+232+71; i++)
|
||
|
|
((uint8_t *)table_b)[i] = ((table_Y[i+384] / 85) <<
|
||
|
|
(order == MPEG2CONVERT_RGB ? 0 : 6));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < 256; i++) {
|
||
|
|
id->table_rV[i] = (((uint8_t *)table_r) +
|
||
|
|
entry_size * div_round (crv * (i-128), 76309));
|
||
|
|
id->table_gU[i] = (((uint8_t *)table_g) +
|
||
|
|
entry_size * div_round (cgu * (i-128), 76309));
|
||
|
|
id->table_gV[i] = entry_size * div_round (cgv * (i-128), 76309);
|
||
|
|
id->table_bU[i] = (((uint8_t *)table_b) +
|
||
|
|
entry_size * div_round (cbu * (i-128), 76309));
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rgb_internal (mpeg2convert_rgb_order_t order, unsigned int bpp,
|
||
|
|
int stage, void * _id, const mpeg2_sequence_t * seq,
|
||
|
|
int stride, uint32_t accel, void * arg,
|
||
|
|
mpeg2_convert_init_t * result)
|
||
|
|
{
|
||
|
|
convert_rgb_t * id = (convert_rgb_t *) _id;
|
||
|
|
mpeg2convert_copy_t * copy = (mpeg2convert_copy_t *) 0;
|
||
|
|
unsigned int id_size = sizeof (convert_rgb_t);
|
||
|
|
int chroma420 = (seq->chroma_height < seq->height);
|
||
|
|
int convert420 = 0;
|
||
|
|
int rgb_stride_min = ((bpp + 7) >> 3) * seq->width;
|
||
|
|
|
||
|
|
#ifdef ARCH_X86
|
||
|
|
if (!copy && (accel & MPEG2_ACCEL_X86_MMXEXT)) {
|
||
|
|
convert420 = 0;
|
||
|
|
copy = mpeg2convert_rgb_mmxext (order, bpp, seq);
|
||
|
|
}
|
||
|
|
if (!copy && (accel & MPEG2_ACCEL_X86_MMX)) {
|
||
|
|
convert420 = 0;
|
||
|
|
copy = mpeg2convert_rgb_mmx (order, bpp, seq);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#ifdef ARCH_SPARC
|
||
|
|
if (!copy && (accel & MPEG2_ACCEL_SPARC_VIS)) {
|
||
|
|
convert420 = chroma420;
|
||
|
|
copy = mpeg2convert_rgb_vis (order, bpp, seq);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (!copy) {
|
||
|
|
int src, dest;
|
||
|
|
static void (* rgb_c[3][5]) (void *, uint8_t * const *,
|
||
|
|
unsigned int) =
|
||
|
|
{{rgb_c_24_bgr_420, rgb_c_8_420, rgb_c_16_420,
|
||
|
|
rgb_c_24_rgb_420, rgb_c_32_420},
|
||
|
|
{rgb_c_24_bgr_422, rgb_c_8_422, rgb_c_16_422,
|
||
|
|
rgb_c_24_rgb_422, rgb_c_32_422},
|
||
|
|
{rgb_c_24_bgr_444, rgb_c_8_444, rgb_c_16_444,
|
||
|
|
rgb_c_24_rgb_444, rgb_c_32_444}};
|
||
|
|
|
||
|
|
convert420 = chroma420;
|
||
|
|
id_size = (sizeof (convert_rgb_c_t) +
|
||
|
|
rgb_c_init ((convert_rgb_c_t *) id, order, bpp));
|
||
|
|
src = ((seq->chroma_width == seq->width) +
|
||
|
|
(seq->chroma_height == seq->height));
|
||
|
|
dest = ((bpp == 24 && order == MPEG2CONVERT_BGR) ? 0 : (bpp + 7) >> 3);
|
||
|
|
copy = rgb_c[src][dest];
|
||
|
|
}
|
||
|
|
|
||
|
|
result->id_size = id_size;
|
||
|
|
|
||
|
|
if (stride < rgb_stride_min)
|
||
|
|
stride = rgb_stride_min;
|
||
|
|
|
||
|
|
if (stage == MPEG2_CONVERT_STRIDE)
|
||
|
|
return stride;
|
||
|
|
else if (stage == MPEG2_CONVERT_START) {
|
||
|
|
id->width = seq->width >> 3;
|
||
|
|
id->y_stride_frame = seq->width;
|
||
|
|
id->uv_stride_frame = seq->chroma_width;
|
||
|
|
id->rgb_stride_frame = stride;
|
||
|
|
id->rgb_stride_min = rgb_stride_min;
|
||
|
|
id->chroma420 = chroma420;
|
||
|
|
id->convert420 = convert420;
|
||
|
|
result->buf_size[0] = stride * seq->height;
|
||
|
|
result->buf_size[1] = result->buf_size[2] = 0;
|
||
|
|
result->start = rgb_start;
|
||
|
|
result->copy = copy;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define DECLARE(func,order,bpp) \
|
||
|
|
int func (int stage, void * id, \
|
||
|
|
const mpeg2_sequence_t * sequence, int stride, \
|
||
|
|
uint32_t accel, void * arg, mpeg2_convert_init_t * result) \
|
||
|
|
{ \
|
||
|
|
return rgb_internal (order, bpp, stage, id, sequence, stride, \
|
||
|
|
accel, arg, result); \
|
||
|
|
}
|
||
|
|
|
||
|
|
DECLARE (mpeg2convert_rgb32, MPEG2CONVERT_RGB, 32)
|
||
|
|
DECLARE (mpeg2convert_rgb24, MPEG2CONVERT_RGB, 24)
|
||
|
|
DECLARE (mpeg2convert_rgb16, MPEG2CONVERT_RGB, 16)
|
||
|
|
DECLARE (mpeg2convert_rgb15, MPEG2CONVERT_RGB, 15)
|
||
|
|
DECLARE (mpeg2convert_rgb8, MPEG2CONVERT_RGB, 8)
|
||
|
|
DECLARE (mpeg2convert_bgr32, MPEG2CONVERT_BGR, 32)
|
||
|
|
DECLARE (mpeg2convert_bgr24, MPEG2CONVERT_BGR, 24)
|
||
|
|
DECLARE (mpeg2convert_bgr16, MPEG2CONVERT_BGR, 16)
|
||
|
|
DECLARE (mpeg2convert_bgr15, MPEG2CONVERT_BGR, 15)
|
||
|
|
DECLARE (mpeg2convert_bgr8, MPEG2CONVERT_BGR, 8)
|
||
|
|
|
||
|
|
mpeg2_convert_t * mpeg2convert_rgb (mpeg2convert_rgb_order_t order,
|
||
|
|
unsigned int bpp)
|
||
|
|
{
|
||
|
|
static mpeg2_convert_t * table[5][2] =
|
||
|
|
{{mpeg2convert_rgb15, mpeg2convert_bgr15},
|
||
|
|
{mpeg2convert_rgb8, mpeg2convert_bgr8},
|
||
|
|
{mpeg2convert_rgb16, mpeg2convert_bgr16},
|
||
|
|
{mpeg2convert_rgb24, mpeg2convert_bgr24},
|
||
|
|
{mpeg2convert_rgb32, mpeg2convert_bgr32}};
|
||
|
|
|
||
|
|
if (order == MPEG2CONVERT_RGB || order == MPEG2CONVERT_BGR) {
|
||
|
|
if (bpp == 15)
|
||
|
|
return table[0][order == MPEG2CONVERT_BGR];
|
||
|
|
else if (bpp >= 8 && bpp <= 32 && (bpp & 7) == 0)
|
||
|
|
return table[bpp >> 3][order == MPEG2CONVERT_BGR];
|
||
|
|
}
|
||
|
|
return (mpeg2_convert_t *) 0;
|
||
|
|
}
|