From f46bb608d9d76c543e4929dc8cffe36b84bd789e Mon Sep 17 00:00:00 2001 From: Diego Biurrun Date: Mon, 3 Feb 2014 14:29:09 -0800 Subject: dsputil: Split off pixel block routines into their own context --- libavcodec/pixblockdsp.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 libavcodec/pixblockdsp.c (limited to 'libavcodec/pixblockdsp.c') diff --git a/libavcodec/pixblockdsp.c b/libavcodec/pixblockdsp.c new file mode 100644 index 0000000000..71423f9cfc --- /dev/null +++ b/libavcodec/pixblockdsp.c @@ -0,0 +1,76 @@ +/* + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include + +#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 *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: + c->get_pixels = get_pixels_16_c; + break; + default: + c->get_pixels = get_pixels_8_c; + break; + } + + 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); +} -- cgit v1.2.3