Remove I411 support, update doc and switch to side by side test

source/convert_argb.cc

Index: source/convert_argb.cc
diff --git a/source/convert_argb.cc b/source/convert_argb.cc
index fb9582d627efe116e8a1dde118e139c9c6c083b8..947d0fc642fc6b7e41d03ff0e88ad989cfb57531 100644
--- a/source/convert_argb.cc
+++ b/source/convert_argb.cc
@@ -487,75 +487,6 @@ int J444ToARGB(const uint8* src_y, int src_stride_y,
                           width, height);
 }
 
-// Convert I411 to ARGB.
-LIBYUV_API
-int I411ToARGB(const uint8* src_y, int src_stride_y,
-               const uint8* src_u, int src_stride_u,
-               const uint8* src_v, int src_stride_v,
-               uint8* dst_argb, int dst_stride_argb,
-               int width, int height) {
-  int y;
-  void (*I411ToARGBRow)(const uint8* y_buf,
-                        const uint8* u_buf,
-                        const uint8* v_buf,
-                        uint8* rgb_buf,
-                        const struct YuvConstants* yuvconstants,
-                        int width) = I411ToARGBRow_C;
-  if (!src_y || !src_u || !src_v ||
-      !dst_argb ||
-      width <= 0 || height == 0) {
-    return -1;
-  }
-  // Negative height means invert the image.
-  if (height < 0) {
-    height = -height;
-    dst_argb = dst_argb + (height - 1) * dst_stride_argb;
-    dst_stride_argb = -dst_stride_argb;
-  }
-  // Coalesce rows.
-  if (src_stride_y == width &&
-      src_stride_u * 4 == width &&
-      src_stride_v * 4 == width &&
-      dst_stride_argb == width * 4) {
-    width *= height;
-    height = 1;
-    src_stride_y = src_stride_u = src_stride_v = dst_stride_argb = 0;
-  }
-#if defined(HAS_I411TOARGBROW_SSSE3)
-  if (TestCpuFlag(kCpuHasSSSE3)) {
-    I411ToARGBRow = I411ToARGBRow_Any_SSSE3;
-    if (IS_ALIGNED(width, 8)) {
-      I411ToARGBRow = I411ToARGBRow_SSSE3;
-    }
-  }
-#endif
-#if defined(HAS_I411TOARGBROW_AVX2)
-  if (TestCpuFlag(kCpuHasAVX2)) {
-    I411ToARGBRow = I411ToARGBRow_Any_AVX2;
-    if (IS_ALIGNED(width, 16)) {
-      I411ToARGBRow = I411ToARGBRow_AVX2;
-    }
-  }
-#endif
-#if defined(HAS_I411TOARGBROW_NEON)
-  if (TestCpuFlag(kCpuHasNEON)) {
-    I411ToARGBRow = I411ToARGBRow_Any_NEON;
-    if (IS_ALIGNED(width, 8)) {
-      I411ToARGBRow = I411ToARGBRow_NEON;
-    }
-  }
-#endif
-
-  for (y = 0; y < height; ++y) {
-    I411ToARGBRow(src_y, src_u, src_v, dst_argb, &kYuvI601Constants, width);
-    dst_argb += dst_stride_argb;
-    src_y += src_stride_y;
-    src_u += src_stride_u;
-    src_v += src_stride_v;
-  }
-  return 0;
-}
-
 // Convert I420 with Alpha to preattenuated ARGB.
 static int I420AlphaToARGBMatrix(const uint8* src_y, int src_stride_y,
                                  const uint8* src_u, int src_stride_u,