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| author | Mans Rullgard <mans@mansr.com> | 2011-11-25 18:16:44 +0000 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-11-26 11:38:41 +0000 |
| commit | 93c286e54f5f695c9352d0034f5a417b79aecc2f (patch) | |
| tree | 3766e7bec55254f7eeaf4afe17eaf01727bdc3fc /libavcodec/qtrle.c | |
| parent | 3bd1162a52cafc1bb758b25636e857c94fd3999c (diff) | |
| download | ffmpeg-93c286e54f5f695c9352d0034f5a417b79aecc2f.tar.gz | |
qtrle: simplify 32-bit decode using intreadwrite macros
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/qtrle.c')
| -rw-r--r-- | libavcodec/qtrle.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c index 8854fb2b96..0c74798226 100644 --- a/libavcodec/qtrle.c +++ b/libavcodec/qtrle.c @@ -328,7 +328,6 @@ static void qtrle_decode_32bpp(QtrleContext *s, int stream_ptr, int row_ptr, int int rle_code; int pixel_ptr; int row_inc = s->frame.linesize[0]; - unsigned char a, r, g, b; unsigned int argb; unsigned char *rgb = s->frame.data[0]; int pixel_limit = s->frame.linesize[0] * s->avctx->height; @@ -347,16 +346,13 @@ static void qtrle_decode_32bpp(QtrleContext *s, int stream_ptr, int row_ptr, int /* decode the run length code */ rle_code = -rle_code; CHECK_STREAM_PTR(4); - a = s->buf[stream_ptr++]; - r = s->buf[stream_ptr++]; - g = s->buf[stream_ptr++]; - b = s->buf[stream_ptr++]; - argb = (a << 24) | (r << 16) | (g << 8) | (b << 0); + argb = AV_RB32(s->buf + stream_ptr); + stream_ptr += 4; CHECK_PIXEL_PTR(rle_code * 4); while (rle_code--) { - *(unsigned int *)(&rgb[pixel_ptr]) = argb; + AV_WN32A(rgb + pixel_ptr, argb); pixel_ptr += 4; } } else { @@ -365,13 +361,10 @@ static void qtrle_decode_32bpp(QtrleContext *s, int stream_ptr, int row_ptr, int /* copy pixels directly to output */ while (rle_code--) { - a = s->buf[stream_ptr++]; - r = s->buf[stream_ptr++]; - g = s->buf[stream_ptr++]; - b = s->buf[stream_ptr++]; - argb = (a << 24) | (r << 16) | (g << 8) | (b << 0); - *(unsigned int *)(&rgb[pixel_ptr]) = argb; - pixel_ptr += 4; + argb = AV_RB32(s->buf + stream_ptr); + AV_WN32A(rgb + pixel_ptr, argb); + stream_ptr += 4; + pixel_ptr += 4; } } } |