| /* |
| * 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 |
| */ |
| |
| #include <stdint.h> |
| |
| #include "config.h" |
| #include "libavutil/attributes.h" |
| #include "avcodec.h" |
| #include "pixblockdsp.h" |
| |
| #define BIT_DEPTH 16 |
| #include "pixblockdsp_template.c" |
| #undef BIT_DEPTH |
| |
| #define BIT_DEPTH 8 |
| #include "pixblockdsp_template.c" |
| |
| static void diff_pixels_c(int16_t *av_restrict block, const uint8_t *s1, |
| const uint8_t *s2, int stride) |
| { |
| int i; |
| |
| /* read the pixels */ |
| for (i = 0; i < 8; i++) { |
| block[0] = s1[0] - s2[0]; |
| block[1] = s1[1] - s2[1]; |
| block[2] = s1[2] - s2[2]; |
| block[3] = s1[3] - s2[3]; |
| block[4] = s1[4] - s2[4]; |
| block[5] = s1[5] - s2[5]; |
| block[6] = s1[6] - s2[6]; |
| block[7] = s1[7] - s2[7]; |
| s1 += stride; |
| s2 += stride; |
| block += 8; |
| } |
| } |
| |
| av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx) |
| { |
| const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; |
| |
| c->diff_pixels = diff_pixels_c; |
| |
| switch (avctx->bits_per_raw_sample) { |
| case 9: |
| case 10: |
| case 12: |
| case 14: |
| c->get_pixels = get_pixels_16_c; |
| break; |
| default: |
| if (avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) { |
| c->get_pixels = get_pixels_8_c; |
| } |
| break; |
| } |
| |
| if (ARCH_ALPHA) |
| ff_pixblockdsp_init_alpha(c, avctx, high_bit_depth); |
| if (ARCH_ARM) |
| ff_pixblockdsp_init_arm(c, avctx, high_bit_depth); |
| if (ARCH_PPC) |
| ff_pixblockdsp_init_ppc(c, avctx, high_bit_depth); |
| if (ARCH_X86) |
| ff_pixblockdsp_init_x86(c, avctx, high_bit_depth); |
| } |