From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- gfx/2d/convolverLS3.h | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 gfx/2d/convolverLS3.h (limited to 'gfx/2d/convolverLS3.h') diff --git a/gfx/2d/convolverLS3.h b/gfx/2d/convolverLS3.h new file mode 100644 index 000000000..af531c927 --- /dev/null +++ b/gfx/2d/convolverLS3.h @@ -0,0 +1,75 @@ +// Copyright (c) 2014-2015 The Chromium Authors. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in +// the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google, Inc. nor the names of its contributors +// may be used to endorse or promote products derived from this +// software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +// SUCH DAMAGE. + +#ifndef SKIA_EXT_CONVOLVER_LS3_H_ +#define SKIA_EXT_CONVOLVER_LS3_H_ + +#include "convolver.h" + +#include + +#include "skia/include/core/SkTypes.h" + +namespace skia { + +// Convolves horizontally along a single row. The row data is given in +// |src_data| and continues for the [begin, end) of the filter. +void ConvolveHorizontally_LS3(const unsigned char* src_data, + const ConvolutionFilter1D& filter, + unsigned char* out_row); + +// Convolves horizontally along a single row. The row data is given in +// |src_data| and continues for the [begin, end) of the filter. +// Process one pixel at a time. +void ConvolveHorizontally1_LS3(const unsigned char* src_data, + const ConvolutionFilter1D& filter, + unsigned char* out_row); + +// Convolves horizontally along four rows. The row data is given in +// |src_data| and continues for the [begin, end) of the filter. +// The algorithm is almost same as |ConvolveHorizontally_LS3|. Please +// refer to that function for detailed comments. +void ConvolveHorizontally4_LS3(const unsigned char* src_data[4], + const ConvolutionFilter1D& filter, + unsigned char* out_row[4]); + +// Does vertical convolution to produce one output row. The filter values and +// length are given in the first two parameters. These are applied to each +// of the rows pointed to in the |source_data_rows| array, with each row +// being |pixel_width| wide. +// +// The output must have room for |pixel_width * 4| bytes. +void ConvolveVertically_LS3(const ConvolutionFilter1D::Fixed* filter_values, + int filter_length, + unsigned char* const* source_data_rows, + int pixel_width, + unsigned char* out_row, bool has_alpha); + +} // namespace skia + +#endif // SKIA_EXT_CONVOLVER_LS3_H_ -- cgit v1.2.3