[MIPS] Added MIPS DSPr2 optimization for BGRAConvolve2D routine

skia/ext/convolver_mips_dspr2.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SKIA_EXT_CONVOLVER_MIPS_DSPR2_H_
+#define SKIA_EXT_CONVOLVER_MIPS_DSPR2_H_
+
+#include "skia/ext/convolver.h"
+
+namespace skia {
+
+void ConvolveVertically_mips_dspr2(const ConvolutionFilter1D::Fixed* filter_val,
+                                   int filter_length,
+                                   unsigned char* const* source_data_rows,
+                                   int pixel_width,
+                                   unsigned char* out_row,
+                                   bool has_alpha);
+
+void ConvolveHorizontally_mips_dspr2(const unsigned char* src_data,
+                                     const ConvolutionFilter1D& filter,
+                                     unsigned char* out_row,
+                                     bool has_alpha);
+} // namespace skia
+
+#endif // SKIA_EXT_CONVOLVER_MIPS_DSPR2_H_