1 files changed, 99 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_InterpolateChroma.c b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_InterpolateChroma.c
new file mode 100644
index 0000000..8824de2
--- /dev/null
+++ b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_InterpolateChroma.c
@@ -0,0 +1,99 @@
+/**
+ * 
+ * File Name:  omxVCM4P10_InterpolateChroma.c
+ * OpenMAX DL: v1.0.2
+ * Revision:   9641
+ * Date:       Thursday, February 7, 2008
+ * 
+ * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
+ * 
+ * 
+ * Description:
+ * This function will calculate 1/8 Pixel interpolation for Chroma Block
+ * 
+ */
+
+#include "omxtypes.h"
+#include "armOMX.h"
+#include "omxVC.h"
+
+#include "armVC.h"
+#include "armCOMM.h"
+
+
+/**
+ * Function:  omxVCM4P10_InterpolateChroma   (6.3.3.2.2)
+ *
+ * Description:
+ * Performs 1/8-pixel interpolation for inter chroma MB. 
+ *
+ * Input Arguments:
+ *   
+ *   pSrc -Pointer to the source reference frame buffer 
+ *   srcStep -Reference frame step in bytes 
+ *   dstStep -Destination frame step in bytes; must be a multiple of 
+ *            roi.width. 
+ *   dx -Fractional part of horizontal motion vector component in 1/8 pixel 
+ *            unit; valid in the range [0,7] 
+ *   dy -Fractional part of vertical motion vector component in 1/8 pixel 
+ *            unit; valid in the range [0,7] 
+ *   roi -Dimension of the interpolation region; the parameters roi.width and 
+ *            roi.height must be equal to either 2, 4, or 8. 
+ *
+ * Output Arguments:
+ *   
+ *   pDst -Pointer to the destination frame buffer if roi.width==2,  2-byte 
+ *            alignment required if roi.width==4,  4-byte alignment required 
+ *            if roi.width==8, 8-byte alignment required 
+ *
+ * Return Value:
+ *    If the function runs without error, it returns OMX_Sts_NoErr. 
+ *    If one of the following cases occurs, the function returns 
+ *              OMX_Sts_BadArgErr: 
+ *    pSrc or pDst is NULL. 
+ *    srcStep or dstStep < 8. 
+ *    dx or dy is out of range [0-7]. 
+ *    roi.width or roi.height is out of range {2,4,8}. 
+ *    roi.width is equal to 2, but pDst is not 2-byte aligned. 
+ *    roi.width is equal to 4, but pDst is not 4-byte aligned. 
+ *    roi.width is equal to 8, but pDst is not 8 byte aligned. 
+ *    srcStep or dstStep is not a multiple of 8. 
+ *
+ */
+
+OMXResult omxVCM4P10_InterpolateChroma (
+     const OMX_U8* pSrc,
+     OMX_S32 srcStep,
+     OMX_U8* pDst,
+     OMX_S32 dstStep,
+     OMX_S32 dx,
+     OMX_S32 dy,
+     OMXSize roi
+ )
+{
+    /* check for argument error */
+    armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr)
+    armRetArgErrIf(srcStep < 8, OMX_Sts_BadArgErr)
+    armRetArgErrIf(dstStep < 8, OMX_Sts_BadArgErr)
+    armRetArgErrIf(dx < 0, OMX_Sts_BadArgErr)
+    armRetArgErrIf(dx > 7, OMX_Sts_BadArgErr)
+    armRetArgErrIf(dy < 0, OMX_Sts_BadArgErr)
+    armRetArgErrIf(dy > 7, OMX_Sts_BadArgErr)
+    armRetArgErrIf((roi.width != 2) && (roi.width != 4) && (roi.width != 8), OMX_Sts_BadArgErr)
+    armRetArgErrIf((roi.height != 2) && (roi.height != 4) && (roi.height != 8), OMX_Sts_BadArgErr)
+    armRetArgErrIf((roi.width == 2) && armNot2ByteAligned(pDst), OMX_Sts_BadArgErr)
+    armRetArgErrIf((roi.width == 4) && armNot4ByteAligned(pDst), OMX_Sts_BadArgErr)
+    armRetArgErrIf((roi.width == 8) && armNot8ByteAligned(pDst), OMX_Sts_BadArgErr)
+    armRetArgErrIf(srcStep & 7, OMX_Sts_BadArgErr)
+    armRetArgErrIf(dstStep & 7, OMX_Sts_BadArgErr)
+
+    return armVCM4P10_Interpolate_Chroma 
+        ((OMX_U8*)pSrc, srcStep, pDst, dstStep, roi.width, roi.height, dx, dy);
+}
+
+
+/*****************************************************************************
+ *                              END OF FILE
+ *****************************************************************************/
+