diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/armv4l/dsputil_iwmmxt.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/armv4l/dsputil_iwmmxt.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/armv4l/dsputil_iwmmxt.c b/contrib/ffmpeg/libavcodec/armv4l/dsputil_iwmmxt.c new file mode 100644 index 000000000..d7401e760 --- /dev/null +++ b/contrib/ffmpeg/libavcodec/armv4l/dsputil_iwmmxt.c @@ -0,0 +1,188 @@ +/* + * iWMMXt optimized DSP utils + * Copyright (c) 2004 AGAWA Koji + * + * 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 "../dsputil.h" + +#define DEF(x, y) x ## _no_rnd_ ## y ##_iwmmxt +#define SET_RND(regd) __asm__ __volatile__ ("mov r12, #1 \n\t tbcsth " #regd ", r12":::"r12"); +#define WAVG2B "wavg2b" +#include "dsputil_iwmmxt_rnd.h" +#undef DEF +#undef SET_RND +#undef WAVG2B + +#define DEF(x, y) x ## _ ## y ##_iwmmxt +#define SET_RND(regd) __asm__ __volatile__ ("mov r12, #2 \n\t tbcsth " #regd ", r12":::"r12"); +#define WAVG2B "wavg2br" +#include "dsputil_iwmmxt_rnd.h" +#undef DEF +#undef SET_RND +#undef WAVG2BR + +// need scheduling +#define OP(AVG) \ + asm volatile ( \ + /* alignment */ \ + "and r12, %[pixels], #7 \n\t" \ + "bic %[pixels], %[pixels], #7 \n\t" \ + "tmcr wcgr1, r12 \n\t" \ + \ + "wldrd wr0, [%[pixels]] \n\t" \ + "wldrd wr1, [%[pixels], #8] \n\t" \ + "add %[pixels], %[pixels], %[line_size] \n\t" \ + "walignr1 wr4, wr0, wr1 \n\t" \ + \ + "1: \n\t" \ + \ + "wldrd wr2, [%[pixels]] \n\t" \ + "wldrd wr3, [%[pixels], #8] \n\t" \ + "add %[pixels], %[pixels], %[line_size] \n\t" \ + "pld [%[pixels]] \n\t" \ + "walignr1 wr5, wr2, wr3 \n\t" \ + AVG " wr6, wr4, wr5 \n\t" \ + "wstrd wr6, [%[block]] \n\t" \ + "add %[block], %[block], %[line_size] \n\t" \ + \ + "wldrd wr0, [%[pixels]] \n\t" \ + "wldrd wr1, [%[pixels], #8] \n\t" \ + "add %[pixels], %[pixels], %[line_size] \n\t" \ + "walignr1 wr4, wr0, wr1 \n\t" \ + "pld [%[pixels]] \n\t" \ + AVG " wr6, wr4, wr5 \n\t" \ + "wstrd wr6, [%[block]] \n\t" \ + "add %[block], %[block], %[line_size] \n\t" \ + \ + "subs %[h], %[h], #2 \n\t" \ + "bne 1b \n\t" \ + : [block]"+r"(block), [pixels]"+r"(pixels), [h]"+r"(h) \ + : [line_size]"r"(line_size) \ + : "memory", "r12"); +void put_pixels8_y2_iwmmxt(uint8_t *block, const uint8_t *pixels, const int line_size, int h) +{ + OP("wavg2br"); +} +void put_no_rnd_pixels8_y2_iwmmxt(uint8_t *block, const uint8_t *pixels, const int line_size, int h) +{ + OP("wavg2b"); +} +#undef OP + +void add_pixels_clamped_iwmmxt(const DCTELEM *block, uint8_t *pixels, int line_size) +{ + uint8_t *pixels2 = pixels + line_size; + + __asm__ __volatile__ ( + "mov r12, #4 \n\t" + "1: \n\t" + "pld [%[pixels], %[line_size2]] \n\t" + "pld [%[pixels2], %[line_size2]] \n\t" + "wldrd wr4, [%[pixels]] \n\t" + "wldrd wr5, [%[pixels2]] \n\t" + "pld [%[block], #32] \n\t" + "wunpckelub wr6, wr4 \n\t" + "wldrd wr0, [%[block]] \n\t" + "wunpckehub wr7, wr4 \n\t" + "wldrd wr1, [%[block], #8] \n\t" + "wunpckelub wr8, wr5 \n\t" + "wldrd wr2, [%[block], #16] \n\t" + "wunpckehub wr9, wr5 \n\t" + "wldrd wr3, [%[block], #24] \n\t" + "add %[block], %[block], #32 \n\t" + "waddhss wr10, wr0, wr6 \n\t" + "waddhss wr11, wr1, wr7 \n\t" + "waddhss wr12, wr2, wr8 \n\t" + "waddhss wr13, wr3, wr9 \n\t" + "wpackhus wr14, wr10, wr11 \n\t" + "wpackhus wr15, wr12, wr13 \n\t" + "wstrd wr14, [%[pixels]] \n\t" + "add %[pixels], %[pixels], %[line_size2] \n\t" + "subs r12, r12, #1 \n\t" + "wstrd wr15, [%[pixels2]] \n\t" + "add %[pixels2], %[pixels2], %[line_size2] \n\t" + "bne 1b \n\t" + : [block]"+r"(block), [pixels]"+r"(pixels), [pixels2]"+r"(pixels2) + : [line_size2]"r"(line_size << 1) + : "cc", "memory", "r12"); +} + +static void nop(uint8_t *block, const uint8_t *pixels, int line_size, int h) +{ + return; +} + +int mm_flags; /* multimedia extension flags */ + +int mm_support(void) +{ + return 0; /* TODO, implement proper detection */ +} + +void dsputil_init_iwmmxt(DSPContext* c, AVCodecContext *avctx) +{ + mm_flags = mm_support(); + + if (avctx->dsp_mask) { + if (avctx->dsp_mask & FF_MM_FORCE) + mm_flags |= (avctx->dsp_mask & 0xffff); + else + mm_flags &= ~(avctx->dsp_mask & 0xffff); + } + + if (!(mm_flags & MM_IWMMXT)) return; + + c->add_pixels_clamped = add_pixels_clamped_iwmmxt; + + c->put_pixels_tab[0][0] = put_pixels16_iwmmxt; + c->put_pixels_tab[0][1] = put_pixels16_x2_iwmmxt; + c->put_pixels_tab[0][2] = put_pixels16_y2_iwmmxt; + c->put_pixels_tab[0][3] = put_pixels16_xy2_iwmmxt; + c->put_no_rnd_pixels_tab[0][0] = put_pixels16_iwmmxt; + c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_iwmmxt; + c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_iwmmxt; + c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_iwmmxt; + + c->put_pixels_tab[1][0] = put_pixels8_iwmmxt; + c->put_pixels_tab[1][1] = put_pixels8_x2_iwmmxt; + c->put_pixels_tab[1][2] = put_pixels8_y2_iwmmxt; + c->put_pixels_tab[1][3] = put_pixels8_xy2_iwmmxt; + c->put_no_rnd_pixels_tab[1][0] = put_pixels8_iwmmxt; + c->put_no_rnd_pixels_tab[1][1] = put_no_rnd_pixels8_x2_iwmmxt; + c->put_no_rnd_pixels_tab[1][2] = put_no_rnd_pixels8_y2_iwmmxt; + c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_iwmmxt; + + c->avg_pixels_tab[0][0] = avg_pixels16_iwmmxt; + c->avg_pixels_tab[0][1] = avg_pixels16_x2_iwmmxt; + c->avg_pixels_tab[0][2] = avg_pixels16_y2_iwmmxt; + c->avg_pixels_tab[0][3] = avg_pixels16_xy2_iwmmxt; + c->avg_no_rnd_pixels_tab[0][0] = avg_pixels16_iwmmxt; + c->avg_no_rnd_pixels_tab[0][1] = avg_no_rnd_pixels16_x2_iwmmxt; + c->avg_no_rnd_pixels_tab[0][2] = avg_no_rnd_pixels16_y2_iwmmxt; + c->avg_no_rnd_pixels_tab[0][3] = avg_no_rnd_pixels16_xy2_iwmmxt; + + c->avg_pixels_tab[1][0] = avg_pixels8_iwmmxt; + c->avg_pixels_tab[1][1] = avg_pixels8_x2_iwmmxt; + c->avg_pixels_tab[1][2] = avg_pixels8_y2_iwmmxt; + c->avg_pixels_tab[1][3] = avg_pixels8_xy2_iwmmxt; + c->avg_no_rnd_pixels_tab[1][0] = avg_no_rnd_pixels8_iwmmxt; + c->avg_no_rnd_pixels_tab[1][1] = avg_no_rnd_pixels8_x2_iwmmxt; + c->avg_no_rnd_pixels_tab[1][2] = avg_no_rnd_pixels8_y2_iwmmxt; + c->avg_no_rnd_pixels_tab[1][3] = avg_no_rnd_pixels8_xy2_iwmmxt; +} |