diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/video_out/yuv2rgb.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/video_out/yuv2rgb.c b/src/video_out/yuv2rgb.c index 27a74620a..5f972217b 100644 --- a/src/video_out/yuv2rgb.c +++ b/src/video_out/yuv2rgb.c @@ -1285,6 +1285,52 @@ static void scale_line_5_4 (uint8_t *source, uint8_t *dest, int width, int step) } +/* Interpolate 3 output pixels from 2 source pixels (1280x720 -> 1920x1080). */ +/* * * * */ +/* * * * * */ +static void scale_line_2_3 (uint8_t *source, uint8_t *dest, int width, int step) { + int p1, p2, p3, p4, p5; + + xine_profiler_start_count(prof_scale_line); + + p4 = p1 = *source++; + p2 = *source; + + while ((width -= 6) >= 0) { + *dest++ = p1; + p3 = *source++; + p5 = (5 * p1 + 12 * p2 - p3) >> 4; + *dest++ = p5 & 0x100 ? ~(p5 >> 9) : p5; + p4 = *source++; + p5 = (12 * p2 + 5 * p3 - p1) >> 4; + *dest++ = p5 & 0x100 ? ~(p5 >> 9) : p5; + *dest++ = p3; + p1 = *source++; + p5 = (5 * p3 + 12 * p4 - p1) >> 4; + *dest++ = p5 & 0x100 ? ~(p5 >> 9) : p5; + p2 = *source++; + p5 = (12 * p4 + 5 * p1 - p3) >> 4; + *dest++ = p5 & 0x100 ? ~(p5 >> 9) : p5; + } + + if ((width += 6) <= 0) goto done; + *dest++ = p1; + if (--width <= 0) goto done; + *dest++ = (11 * p1 + 21 * p2) >> 5; + if (--width <= 0) goto done; + p3 = *source++; + *dest++ = (21 * p2 + 11 * p3) >> 5; + if (--width <= 0) goto done; + *dest++ = p3; + if (--width <= 0) goto done; + p4 = *source++; + *dest++ = (11 * p3 + 21 * p4) >> 5; + done: + + xine_profiler_stop_count(prof_scale_line); +} + + /* * Scale line with no horizontal scaling. For NTSC mpeg2 dvd input in * 4:3 output format (720x480 -> 720x540) @@ -1316,6 +1362,7 @@ static scale_line_func_t find_scale_line_func(int step) { { 1, 2, scale_line_1_2, "2*zoom" }, { 1, 1, scale_line_1_1, "non-scaled" }, { 5, 4, scale_line_5_4, "hd720p, fullscreen(1024x576)" }, + { 2, 3, scale_line_2_3, "hd720p, fullscreen(1920x1080)" } }; size_t i; #ifdef LOG |