diff options
| author | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
| commit | 22e28216336da876e1fd17f380ce42eaf1446769 (patch) | |
| tree | 444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavcodec/simple_idct_template.c | |
| parent | ae5e8541f6e06e64c28719467cdf366ac57aff31 (diff) | |
chasing indexing error
Diffstat (limited to 'ffmpeg/libavcodec/simple_idct_template.c')
| -rw-r--r-- | ffmpeg/libavcodec/simple_idct_template.c | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/ffmpeg/libavcodec/simple_idct_template.c b/ffmpeg/libavcodec/simple_idct_template.c deleted file mode 100644 index 64a7be0..0000000 --- a/ffmpeg/libavcodec/simple_idct_template.c +++ /dev/null @@ -1,338 +0,0 @@ -/* - * Simple IDCT - * - * Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * simpleidct in C. - */ - -/* - based upon some outcommented c code from mpeg2dec (idct_mmx.c - written by Aaron Holtzman <aholtzma@ess.engr.uvic.ca>) - */ - -#include "bit_depth_template.c" - -#undef W1 -#undef W2 -#undef W3 -#undef W4 -#undef W5 -#undef W6 -#undef W7 -#undef ROW_SHIFT -#undef COL_SHIFT -#undef DC_SHIFT -#undef MUL -#undef MAC - -#if BIT_DEPTH == 8 - -#define W1 22725 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5 -#define W2 21407 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5 -#define W3 19266 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5 -#define W4 16383 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5 -#define W5 12873 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5 -#define W6 8867 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5 -#define W7 4520 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5 - -#define ROW_SHIFT 11 -#define COL_SHIFT 20 -#define DC_SHIFT 3 - -#define MUL(a, b) MUL16(a, b) -#define MAC(a, b, c) MAC16(a, b, c) - -#elif BIT_DEPTH == 10 || BIT_DEPTH == 12 - -#if BIT_DEPTH == 10 -#define W1 90901 -#define W2 85627 -#define W3 77062 -#define W4 65535 -#define W5 51491 -#define W6 35468 -#define W7 18081 - -#define ROW_SHIFT 15 -#define COL_SHIFT 20 -#define DC_SHIFT 1 -#else -#define W1 45451 -#define W2 42813 -#define W3 38531 -#define W4 32767 -#define W5 25746 -#define W6 17734 -#define W7 9041 - -#define ROW_SHIFT 16 -#define COL_SHIFT 17 -#define DC_SHIFT -1 -#endif - -#define MUL(a, b) ((a) * (b)) -#define MAC(a, b, c) ((a) += (b) * (c)) - -#else - -#error "Unsupported bitdepth" - -#endif - -static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift) -{ - int a0, a1, a2, a3, b0, b1, b2, b3; - -#if HAVE_FAST_64BIT -#define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN) - if (((((uint64_t *)row)[0] & ~ROW0_MASK) | ((uint64_t *)row)[1]) == 0) { - uint64_t temp; - if (DC_SHIFT - extra_shift > 0) { - temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff; - } else { - temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff; - } - temp += temp << 16; - temp += temp << 32; - ((uint64_t *)row)[0] = temp; - ((uint64_t *)row)[1] = temp; - return; - } -#else - if (!(((uint32_t*)row)[1] | - ((uint32_t*)row)[2] | - ((uint32_t*)row)[3] | - row[1])) { - uint32_t temp; - if (DC_SHIFT - extra_shift > 0) { - temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff; - } else { - temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff; - } - temp += temp << 16; - ((uint32_t*)row)[0]=((uint32_t*)row)[1] = - ((uint32_t*)row)[2]=((uint32_t*)row)[3] = temp; - return; - } -#endif - - a0 = (W4 * row[0]) + (1 << (ROW_SHIFT - 1)); - a1 = a0; - a2 = a0; - a3 = a0; - - a0 += W2 * row[2]; - a1 += W6 * row[2]; - a2 -= W6 * row[2]; - a3 -= W2 * row[2]; - - b0 = MUL(W1, row[1]); - MAC(b0, W3, row[3]); - b1 = MUL(W3, row[1]); - MAC(b1, -W7, row[3]); - b2 = MUL(W5, row[1]); - MAC(b2, -W1, row[3]); - b3 = MUL(W7, row[1]); - MAC(b3, -W5, row[3]); - - if (AV_RN64A(row + 4)) { - a0 += W4*row[4] + W6*row[6]; - a1 += - W4*row[4] - W2*row[6]; - a2 += - W4*row[4] + W2*row[6]; - a3 += W4*row[4] - W6*row[6]; - - MAC(b0, W5, row[5]); - MAC(b0, W7, row[7]); - - MAC(b1, -W1, row[5]); - MAC(b1, -W5, row[7]); - - MAC(b2, W7, row[5]); - MAC(b2, W3, row[7]); - - MAC(b3, W3, row[5]); - MAC(b3, -W1, row[7]); - } - - row[0] = (a0 + b0) >> (ROW_SHIFT + extra_shift); - row[7] = (a0 - b0) >> (ROW_SHIFT + extra_shift); - row[1] = (a1 + b1) >> (ROW_SHIFT + extra_shift); - row[6] = (a1 - b1) >> (ROW_SHIFT + extra_shift); - row[2] = (a2 + b2) >> (ROW_SHIFT + extra_shift); - row[5] = (a2 - b2) >> (ROW_SHIFT + extra_shift); - row[3] = (a3 + b3) >> (ROW_SHIFT + extra_shift); - row[4] = (a3 - b3) >> (ROW_SHIFT + extra_shift); -} - -#define IDCT_COLS do { \ - a0 = W4 * (col[8*0] + ((1<<(COL_SHIFT-1))/W4)); \ - a1 = a0; \ - a2 = a0; \ - a3 = a0; \ - \ - a0 += W2*col[8*2]; \ - a1 += W6*col[8*2]; \ - a2 += -W6*col[8*2]; \ - a3 += -W2*col[8*2]; \ - \ - b0 = MUL(W1, col[8*1]); \ - b1 = MUL(W3, col[8*1]); \ - b2 = MUL(W5, col[8*1]); \ - b3 = MUL(W7, col[8*1]); \ - \ - MAC(b0, W3, col[8*3]); \ - MAC(b1, -W7, col[8*3]); \ - MAC(b2, -W1, col[8*3]); \ - MAC(b3, -W5, col[8*3]); \ - \ - if (col[8*4]) { \ - a0 += W4*col[8*4]; \ - a1 += -W4*col[8*4]; \ - a2 += -W4*col[8*4]; \ - a3 += W4*col[8*4]; \ - } \ - \ - if (col[8*5]) { \ - MAC(b0, W5, col[8*5]); \ - MAC(b1, -W1, col[8*5]); \ - MAC(b2, W7, col[8*5]); \ - MAC(b3, W3, col[8*5]); \ - } \ - \ - if (col[8*6]) { \ - a0 += W6*col[8*6]; \ - a1 += -W2*col[8*6]; \ - a2 += W2*col[8*6]; \ - a3 += -W6*col[8*6]; \ - } \ - \ - if (col[8*7]) { \ - MAC(b0, W7, col[8*7]); \ - MAC(b1, -W5, col[8*7]); \ - MAC(b2, W3, col[8*7]); \ - MAC(b3, -W1, col[8*7]); \ - } \ - } while (0) - -static inline void FUNC(idctSparseColPut)(pixel *dest, int line_size, - int16_t *col) -{ - int a0, a1, a2, a3, b0, b1, b2, b3; - - IDCT_COLS; - - dest[0] = av_clip_pixel((a0 + b0) >> COL_SHIFT); - dest += line_size; - dest[0] = av_clip_pixel((a1 + b1) >> COL_SHIFT); - dest += line_size; - dest[0] = av_clip_pixel((a2 + b2) >> COL_SHIFT); - dest += line_size; - dest[0] = av_clip_pixel((a3 + b3) >> COL_SHIFT); - dest += line_size; - dest[0] = av_clip_pixel((a3 - b3) >> COL_SHIFT); - dest += line_size; - dest[0] = av_clip_pixel((a2 - b2) >> COL_SHIFT); - dest += line_size; - dest[0] = av_clip_pixel((a1 - b1) >> COL_SHIFT); - dest += line_size; - dest[0] = av_clip_pixel((a0 - b0) >> COL_SHIFT); -} - -static inline void FUNC(idctSparseColAdd)(pixel *dest, int line_size, - int16_t *col) -{ - int a0, a1, a2, a3, b0, b1, b2, b3; - - IDCT_COLS; - - dest[0] = av_clip_pixel(dest[0] + ((a0 + b0) >> COL_SHIFT)); - dest += line_size; - dest[0] = av_clip_pixel(dest[0] + ((a1 + b1) >> COL_SHIFT)); - dest += line_size; - dest[0] = av_clip_pixel(dest[0] + ((a2 + b2) >> COL_SHIFT)); - dest += line_size; - dest[0] = av_clip_pixel(dest[0] + ((a3 + b3) >> COL_SHIFT)); - dest += line_size; - dest[0] = av_clip_pixel(dest[0] + ((a3 - b3) >> COL_SHIFT)); - dest += line_size; - dest[0] = av_clip_pixel(dest[0] + ((a2 - b2) >> COL_SHIFT)); - dest += line_size; - dest[0] = av_clip_pixel(dest[0] + ((a1 - b1) >> COL_SHIFT)); - dest += line_size; - dest[0] = av_clip_pixel(dest[0] + ((a0 - b0) >> COL_SHIFT)); -} - -static inline void FUNC(idctSparseCol)(int16_t *col) -{ - int a0, a1, a2, a3, b0, b1, b2, b3; - - IDCT_COLS; - - col[0 ] = ((a0 + b0) >> COL_SHIFT); - col[8 ] = ((a1 + b1) >> COL_SHIFT); - col[16] = ((a2 + b2) >> COL_SHIFT); - col[24] = ((a3 + b3) >> COL_SHIFT); - col[32] = ((a3 - b3) >> COL_SHIFT); - col[40] = ((a2 - b2) >> COL_SHIFT); - col[48] = ((a1 - b1) >> COL_SHIFT); - col[56] = ((a0 - b0) >> COL_SHIFT); -} - -void FUNC(ff_simple_idct_put)(uint8_t *dest_, int line_size, int16_t *block) -{ - pixel *dest = (pixel *)dest_; - int i; - - line_size /= sizeof(pixel); - - for (i = 0; i < 8; i++) - FUNC(idctRowCondDC)(block + i*8, 0); - - for (i = 0; i < 8; i++) - FUNC(idctSparseColPut)(dest + i, line_size, block + i); -} - -void FUNC(ff_simple_idct_add)(uint8_t *dest_, int line_size, int16_t *block) -{ - pixel *dest = (pixel *)dest_; - int i; - - line_size /= sizeof(pixel); - - for (i = 0; i < 8; i++) - FUNC(idctRowCondDC)(block + i*8, 0); - - for (i = 0; i < 8; i++) - FUNC(idctSparseColAdd)(dest + i, line_size, block + i); -} - -void FUNC(ff_simple_idct)(int16_t *block) -{ - int i; - - for (i = 0; i < 8; i++) - FUNC(idctRowCondDC)(block + i*8, 0); - - for (i = 0; i < 8; i++) - FUNC(idctSparseCol)(block + i); -} |
