[FFmpeg-cvslog] rgb2rgb: rgb12tobgr12()

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Tue Jan 10 17:29:16 2012 +0000| [4ad40d6d9f489aed3e4b283c640e81585686e4a1] | committer: Paul B Mahol

rgb2rgb: rgb12tobgr12()

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4ad40d6d9f489aed3e4b283c640e81585686e4a1
---

 libswscale/rgb2rgb.c          |   13 +++++++++++++
 libswscale/rgb2rgb.h          |    1 +
 libswscale/swscale_unscaled.c |    1 +
 3 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
index 5b84f89..c6c1eba 100644
--- a/libswscale/rgb2rgb.c
+++ b/libswscale/rgb2rgb.c
@@ -282,6 +282,19 @@ void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
     }
 }
 
+void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    int i;
+    int num_pixels = src_size >> 1;
+
+    for (i = 0; i < num_pixels; i++) {
+        unsigned br;
+        unsigned rgb = ((const uint16_t *)src)[i];
+        br = rgb & 0x0F0F;
+        ((uint16_t *)dst)[i] = (br >> 8) | (rgb & 0x00F0) | (br << 8);
+    }
+}
+
 void bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size)
 {
     int i;
diff --git a/libswscale/rgb2rgb.h b/libswscale/rgb2rgb.h
index a7542cb..5d3bbfa 100644
--- a/libswscale/rgb2rgb.h
+++ b/libswscale/rgb2rgb.h
@@ -62,6 +62,7 @@ void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size);
 void    rgb15to24(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size);
+void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size);
 void   bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size);
 
 void shuffle_bytes_0321(const uint8_t *src, uint8_t *dst, int src_size);
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index 748681c..bf79caab 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -444,6 +444,7 @@ static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
     } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) ||
                (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
         switch (srcId | (dstId << 16)) {
+        case 0x000C000C: conv = rgb12tobgr12; break;
         case 0x000F000F: conv = rgb15tobgr15; break;
         case 0x000F0010: conv = rgb16tobgr15; break;
         case 0x000F0018: conv = rgb24tobgr15; break;