Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(8)

Unified Diff: source/convert.cc

Issue 2277603004: Add SplitUVPlanes and MergeUVPlanes (Closed) Base URL: https://chromium.googlesource.com/libyuv/libyuv@master
Patch Set: moved to planar_functions Created 4 years, 4 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: source/convert.cc
diff --git a/source/convert.cc b/source/convert.cc
index cd667bf5605cba6f7404770d30ff9f45f3c27638..6f5b910a2536255f871328f2153db1a42ba43d66 100644
--- a/source/convert.cc
+++ b/source/convert.cc
@@ -229,75 +229,6 @@ static void CopyPlane2(const uint8* src, int src_stride_0, int src_stride_1,
}
}
-// Support function for NV12 etc UV channels.
-// Width and height are plane sizes (typically half pixel width).
-static void SplitUVPlane(const uint8* src_uv, int src_stride_uv,
- uint8* dst_u, int dst_stride_u,
- uint8* dst_v, int dst_stride_v,
- int width, int height) {
- int y;
- void (*SplitUVRow)(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
- int width) = SplitUVRow_C;
- // Negative height means invert the image.
- if (height < 0) {
- height = -height;
- dst_u = dst_u + (height - 1) * dst_stride_u;
- dst_v = dst_v + (height - 1) * dst_stride_v;
- dst_stride_u = -dst_stride_u;
- dst_stride_v = -dst_stride_v;
- }
- // Coalesce rows.
- if (src_stride_uv == width * 2 &&
- dst_stride_u == width &&
- dst_stride_v == width) {
- width *= height;
- height = 1;
- src_stride_uv = dst_stride_u = dst_stride_v = 0;
- }
-#if defined(HAS_SPLITUVROW_SSE2)
- if (TestCpuFlag(kCpuHasSSE2)) {
- SplitUVRow = SplitUVRow_Any_SSE2;
- if (IS_ALIGNED(width, 16)) {
- SplitUVRow = SplitUVRow_SSE2;
- }
- }
-#endif
-#if defined(HAS_SPLITUVROW_AVX2)
- if (TestCpuFlag(kCpuHasAVX2)) {
- SplitUVRow = SplitUVRow_Any_AVX2;
- if (IS_ALIGNED(width, 32)) {
- SplitUVRow = SplitUVRow_AVX2;
- }
- }
-#endif
-#if defined(HAS_SPLITUVROW_NEON)
- if (TestCpuFlag(kCpuHasNEON)) {
- SplitUVRow = SplitUVRow_Any_NEON;
- if (IS_ALIGNED(width, 16)) {
- SplitUVRow = SplitUVRow_NEON;
- }
- }
-#endif
-#if defined(HAS_SPLITUVROW_DSPR2)
- if (TestCpuFlag(kCpuHasDSPR2) &&
- IS_ALIGNED(dst_u, 4) && IS_ALIGNED(dst_stride_u, 4) &&
- IS_ALIGNED(dst_v, 4) && IS_ALIGNED(dst_stride_v, 4)) {
- SplitUVRow = SplitUVRow_Any_DSPR2;
- if (IS_ALIGNED(width, 16)) {
- SplitUVRow = SplitUVRow_DSPR2;
- }
- }
-#endif
-
- for (y = 0; y < height; ++y) {
- // Copy a row of UV.
- SplitUVRow(src_uv, dst_u, dst_v, width);
- dst_u += dst_stride_u;
- dst_v += dst_stride_v;
- src_uv += src_stride_uv;
- }
-}
-
// Support converting from FOURCC_M420
// Useful for bandwidth constrained transports like USB 1.0 and 2.0 and for
// easy conversion to I420.

Powered by Google App Engine
This is Rietveld 408576698