rgb2rgb: rgb12tobgr12()

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
index 0f07e57683654e073c56329421aec89c1a0b5779..9fbb6cfd60890f7bbf9a23816d71a9af819647e9 100644 (file)
--- 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)
+{
+    uint16_t *d = (uint16_t*)dst;
+    uint16_t *s = (uint16_t*)src;
+    int i;
+    int num_pixels = src_size >> 1;
+
+    for (i = 0; i < num_pixels; i++) {
+        unsigned rgb = s[i];
+        d[i] = (rgb << 8 | rgb & 0xF0 | rgb >> 8) & 0xFFF;
+    }
+}
+
 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 833a984cecb49b4cedadd8b2e87d90a5986116aa..bfb85d722f7440849cb079eb688967bb00c24281 100644 (file)
--- 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 57695483eaa74561f75abbcdda7ef9298ce05a29..a1b7199a23e22d827c766eca1b79999b85679182 100644 (file)
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -400,6 +400,7 @@ 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;