Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (C) 2007 Marc Hoffman |
||
| 3 | * |
||
| 4 | * Blackfin video color space converter operations |
||
| 5 | * convert I420 YV12 to RGB in various formats |
||
| 6 | * |
||
| 7 | * This file is part of FFmpeg. |
||
| 8 | * |
||
| 9 | * FFmpeg is free software; you can redistribute it and/or |
||
| 10 | * modify it under the terms of the GNU Lesser General Public |
||
| 11 | * License as published by the Free Software Foundation; either |
||
| 12 | * version 2.1 of the License, or (at your option) any later version. |
||
| 13 | * |
||
| 14 | * FFmpeg is distributed in the hope that it will be useful, |
||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||
| 17 | * Lesser General Public License for more details. |
||
| 18 | * |
||
| 19 | * You should have received a copy of the GNU Lesser General Public |
||
| 20 | * License along with FFmpeg; if not, write to the Free Software |
||
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||
| 22 | */ |
||
| 23 | |||
| 24 | #include "libavutil/pixdesc.h" |
||
| 25 | #include |
||
| 26 | |||
| 27 | #include "config.h" |
||
| 28 | #include "libavutil/attributes.h" |
||
| 29 | #include "libswscale/swscale_internal.h" |
||
| 30 | |||
| 31 | #if defined(__FDPIC__) && CONFIG_SRAM |
||
| 32 | #define L1CODE __attribute__((l1_text)) |
||
| 33 | #else |
||
| 34 | #define L1CODE |
||
| 35 | #endif |
||
| 36 | |||
| 37 | void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U, |
||
| 38 | const uint8_t *V, uint8_t *out, |
||
| 39 | int w, uint32_t *coeffs) L1CODE; |
||
| 40 | |||
| 41 | void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U, |
||
| 42 | const uint8_t *V, uint8_t *out, |
||
| 43 | int w, uint32_t *coeffs) L1CODE; |
||
| 44 | |||
| 45 | void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U, |
||
| 46 | const uint8_t *V, uint8_t *out, |
||
| 47 | int w, uint32_t *coeffs) L1CODE; |
||
| 48 | |||
| 49 | typedef void (*ltransform)(const uint8_t *Y, const uint8_t *U, const uint8_t *V, |
||
| 50 | uint8_t *out, int w, uint32_t *coeffs); |
||
| 51 | |||
| 52 | static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks) |
||
| 53 | { |
||
| 54 | int oy; |
||
| 55 | oy = c->yOffset & 0xffff; |
||
| 56 | oy = oy >> 3; // keep everything U8.0 for offset calculation |
||
| 57 | |||
| 58 | c->oc = 128 * 0x01010101U; |
||
| 59 | c->oy = oy * 0x01010101U; |
||
| 60 | |||
| 61 | /* copy 64bit vector coeffs down to 32bit vector coeffs */ |
||
| 62 | c->cy = c->yCoeff; |
||
| 63 | c->zero = 0; |
||
| 64 | |||
| 65 | if (rgb) { |
||
| 66 | c->crv = c->vrCoeff; |
||
| 67 | c->cbu = c->ubCoeff; |
||
| 68 | c->cgu = c->ugCoeff; |
||
| 69 | c->cgv = c->vgCoeff; |
||
| 70 | } else { |
||
| 71 | c->crv = c->ubCoeff; |
||
| 72 | c->cbu = c->vrCoeff; |
||
| 73 | c->cgu = c->vgCoeff; |
||
| 74 | c->cgv = c->ugCoeff; |
||
| 75 | } |
||
| 76 | |||
| 77 | if (masks == 555) { |
||
| 78 | c->rmask = 0x001f * 0x00010001U; |
||
| 79 | c->gmask = 0x03e0 * 0x00010001U; |
||
| 80 | c->bmask = 0x7c00 * 0x00010001U; |
||
| 81 | } else if (masks == 565) { |
||
| 82 | c->rmask = 0x001f * 0x00010001U; |
||
| 83 | c->gmask = 0x07e0 * 0x00010001U; |
||
| 84 | c->bmask = 0xf800 * 0x00010001U; |
||
| 85 | } |
||
| 86 | } |
||
| 87 | |||
| 88 | static int core_yuv420_rgb(SwsContext *c, const uint8_t **in, int *instrides, |
||
| 89 | int srcSliceY, int srcSliceH, uint8_t **oplanes, |
||
| 90 | int *outstrides, ltransform lcscf, |
||
| 91 | int rgb, int masks) |
||
| 92 | { |
||
| 93 | const uint8_t *py, *pu, *pv; |
||
| 94 | uint8_t *op; |
||
| 95 | int w = instrides[0]; |
||
| 96 | int h2 = srcSliceH >> 1; |
||
| 97 | int i; |
||
| 98 | |||
| 99 | bfin_prepare_coefficients(c, rgb, masks); |
||
| 100 | |||
| 101 | py = in[0]; |
||
| 102 | pu = in[1 + (1 ^ rgb)]; |
||
| 103 | pv = in[1 + (0 ^ rgb)]; |
||
| 104 | |||
| 105 | op = oplanes[0] + srcSliceY * outstrides[0]; |
||
| 106 | |||
| 107 | for (i = 0; i < h2; i++) { |
||
| 108 | lcscf(py, pu, pv, op, w, &c->oy); |
||
| 109 | |||
| 110 | py += instrides[0]; |
||
| 111 | op += outstrides[0]; |
||
| 112 | |||
| 113 | lcscf(py, pu, pv, op, w, &c->oy); |
||
| 114 | |||
| 115 | py += instrides[0]; |
||
| 116 | pu += instrides[1]; |
||
| 117 | pv += instrides[2]; |
||
| 118 | op += outstrides[0]; |
||
| 119 | } |
||
| 120 | |||
| 121 | return srcSliceH; |
||
| 122 | } |
||
| 123 | |||
| 124 | static int bfin_yuv420_rgb555(SwsContext *c, const uint8_t **in, int *instrides, |
||
| 125 | int srcSliceY, int srcSliceH, |
||
| 126 | uint8_t **oplanes, int *outstrides) |
||
| 127 | { |
||
| 128 | return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes, |
||
| 129 | outstrides, ff_bfin_yuv2rgb555_line, 1, 555); |
||
| 130 | } |
||
| 131 | |||
| 132 | static int bfin_yuv420_bgr555(SwsContext *c, const uint8_t **in, int *instrides, |
||
| 133 | int srcSliceY, int srcSliceH, |
||
| 134 | uint8_t **oplanes, int *outstrides) |
||
| 135 | { |
||
| 136 | return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes, |
||
| 137 | outstrides, ff_bfin_yuv2rgb555_line, 0, 555); |
||
| 138 | } |
||
| 139 | |||
| 140 | static int bfin_yuv420_rgb24(SwsContext *c, const uint8_t **in, int *instrides, |
||
| 141 | int srcSliceY, int srcSliceH, |
||
| 142 | uint8_t **oplanes, int *outstrides) |
||
| 143 | { |
||
| 144 | return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes, |
||
| 145 | outstrides, ff_bfin_yuv2rgb24_line, 1, 888); |
||
| 146 | } |
||
| 147 | |||
| 148 | static int bfin_yuv420_bgr24(SwsContext *c, const uint8_t **in, int *instrides, |
||
| 149 | int srcSliceY, int srcSliceH, |
||
| 150 | uint8_t **oplanes, int *outstrides) |
||
| 151 | { |
||
| 152 | return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes, |
||
| 153 | outstrides, ff_bfin_yuv2rgb24_line, 0, 888); |
||
| 154 | } |
||
| 155 | |||
| 156 | static int bfin_yuv420_rgb565(SwsContext *c, const uint8_t **in, int *instrides, |
||
| 157 | int srcSliceY, int srcSliceH, |
||
| 158 | uint8_t **oplanes, int *outstrides) |
||
| 159 | { |
||
| 160 | return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes, |
||
| 161 | outstrides, ff_bfin_yuv2rgb565_line, 1, 565); |
||
| 162 | } |
||
| 163 | |||
| 164 | static int bfin_yuv420_bgr565(SwsContext *c, const uint8_t **in, int *instrides, |
||
| 165 | int srcSliceY, int srcSliceH, |
||
| 166 | uint8_t **oplanes, int *outstrides) |
||
| 167 | { |
||
| 168 | return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes, |
||
| 169 | outstrides, ff_bfin_yuv2rgb565_line, 0, 565); |
||
| 170 | } |
||
| 171 | |||
| 172 | av_cold SwsFunc ff_yuv2rgb_init_bfin(SwsContext *c) |
||
| 173 | { |
||
| 174 | SwsFunc f; |
||
| 175 | |||
| 176 | switch (c->dstFormat) { |
||
| 177 | case AV_PIX_FMT_RGB555: |
||
| 178 | f = bfin_yuv420_rgb555; |
||
| 179 | break; |
||
| 180 | case AV_PIX_FMT_BGR555: |
||
| 181 | f = bfin_yuv420_bgr555; |
||
| 182 | break; |
||
| 183 | case AV_PIX_FMT_RGB565: |
||
| 184 | f = bfin_yuv420_rgb565; |
||
| 185 | break; |
||
| 186 | case AV_PIX_FMT_BGR565: |
||
| 187 | f = bfin_yuv420_bgr565; |
||
| 188 | break; |
||
| 189 | case AV_PIX_FMT_RGB24: |
||
| 190 | f = bfin_yuv420_rgb24; |
||
| 191 | break; |
||
| 192 | case AV_PIX_FMT_BGR24: |
||
| 193 | f = bfin_yuv420_bgr24; |
||
| 194 | break; |
||
| 195 | default: |
||
| 196 | return 0; |
||
| 197 | } |
||
| 198 | |||
| 199 | av_log(c, AV_LOG_INFO, "BlackFin accelerated color space converter %s\n", |
||
| 200 | av_get_pix_fmt_name(c->dstFormat)); |
||
| 201 | |||
| 202 | return f; |
||
| 203 | } |