diff options
Diffstat (limited to 'libswscale/rgb2rgb.c')
| -rw-r--r-- | libswscale/rgb2rgb.c | 110 |
1 files changed, 76 insertions, 34 deletions
diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c index 26ef648..321e5ff 100644 --- a/libswscale/rgb2rgb.c +++ b/libswscale/rgb2rgb.c @@ -6,20 +6,20 @@ * Written by Nick Kurshev. * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at) * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -181,13 +181,13 @@ void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size) register uint16_t bgr = *s++; #if HAVE_BIGENDIAN *d++ = 255; - *d++ = (bgr & 0x1F) << 3; - *d++ = (bgr & 0x7E0) >> 3; - *d++ = (bgr & 0xF800) >> 8; + *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2); + *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9); + *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13); #else - *d++ = (bgr & 0xF800) >> 8; - *d++ = (bgr & 0x7E0) >> 3; - *d++ = (bgr & 0x1F) << 3; + *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13); + *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9); + *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2); *d++ = 255; #endif } @@ -220,9 +220,9 @@ void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size) while (s < end) { register uint16_t bgr = *s++; - *d++ = (bgr & 0xF800) >> 8; - *d++ = (bgr & 0x7E0) >> 3; - *d++ = (bgr & 0x1F) << 3; + *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13); + *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9); + *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2); } } @@ -256,13 +256,13 @@ void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size) register uint16_t bgr = *s++; #if HAVE_BIGENDIAN *d++ = 255; - *d++ = (bgr & 0x1F) << 3; - *d++ = (bgr & 0x3E0) >> 2; - *d++ = (bgr & 0x7C00) >> 7; + *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2); + *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7); + *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12); #else - *d++ = (bgr & 0x7C00) >> 7; - *d++ = (bgr & 0x3E0) >> 2; - *d++ = (bgr & 0x1F) << 3; + *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12); + *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7); + *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2); *d++ = 255; #endif } @@ -276,9 +276,9 @@ void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size) while (s < end) { register uint16_t bgr = *s++; - *d++ = (bgr & 0x7C00) >> 7; - *d++ = (bgr & 0x3E0) >> 2; - *d++ = (bgr & 0x1F) << 3; + *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12); + *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7); + *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2); } } @@ -315,18 +315,6 @@ void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size) } } -void bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size) -{ - int i, num_pixels = src_size; - - for (i = 0; i < num_pixels; i++) { - register uint8_t rgb = src[i]; - unsigned r = (rgb & 0x07); - unsigned g = (rgb & 0x38) >> 3; - unsigned b = (rgb & 0xC0) >> 6; - dst[i] = ((b << 1) & 0x07) | ((g & 0x07) << 3) | ((r & 0x03) << 6); - } -} #define DEFINE_SHUFFLE_BYTES(a, b, c, d) \ void shuffle_bytes_ ## a ## b ## c ## d(const uint8_t *src, \ @@ -346,3 +334,57 @@ DEFINE_SHUFFLE_BYTES(0, 3, 2, 1) DEFINE_SHUFFLE_BYTES(1, 2, 3, 0) DEFINE_SHUFFLE_BYTES(3, 0, 1, 2) DEFINE_SHUFFLE_BYTES(3, 2, 1, 0) + +#define DEFINE_RGB48TOBGR48(need_bswap, swap) \ +void rgb48tobgr48_ ## need_bswap(const uint8_t *src, \ + uint8_t *dst, int src_size) \ +{ \ + uint16_t *d = (uint16_t *)dst; \ + uint16_t *s = (uint16_t *)src; \ + int i, num_pixels = src_size >> 1; \ + \ + for (i = 0; i < num_pixels; i += 3) { \ + d[i ] = swap ? av_bswap16(s[i + 2]) : s[i + 2]; \ + d[i + 1] = swap ? av_bswap16(s[i + 1]) : s[i + 1]; \ + d[i + 2] = swap ? av_bswap16(s[i ]) : s[i ]; \ + } \ +} + +DEFINE_RGB48TOBGR48(nobswap, 0) +DEFINE_RGB48TOBGR48(bswap, 1) + +#define DEFINE_RGB64TOBGR48(need_bswap, swap) \ +void rgb64tobgr48_ ## need_bswap(const uint8_t *src, \ + uint8_t *dst, int src_size) \ +{ \ + uint16_t *d = (uint16_t *)dst; \ + uint16_t *s = (uint16_t *)src; \ + int i, num_pixels = src_size >> 3; \ + \ + for (i = 0; i < num_pixels; i++) { \ + d[3 * i ] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2]; \ + d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1]; \ + d[3 * i + 2] = swap ? av_bswap16(s[4 * i ]) : s[4 * i ]; \ + } \ +} + +DEFINE_RGB64TOBGR48(nobswap, 0) +DEFINE_RGB64TOBGR48(bswap, 1) + +#define DEFINE_RGB64TO48(need_bswap, swap) \ +void rgb64to48_ ## need_bswap(const uint8_t *src, \ + uint8_t *dst, int src_size) \ +{ \ + uint16_t *d = (uint16_t *)dst; \ + uint16_t *s = (uint16_t *)src; \ + int i, num_pixels = src_size >> 3; \ + \ + for (i = 0; i < num_pixels; i++) { \ + d[3 * i ] = swap ? av_bswap16(s[4 * i ]) : s[4 * i ]; \ + d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1]; \ + d[3 * i + 2] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2]; \ + } \ +} + +DEFINE_RGB64TO48(nobswap, 0) +DEFINE_RGB64TO48(bswap, 1) |
