godot/thirdparty/libwebp/src/utils/rescaler_utils.c

// Copyright 2012 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
// -----------------------------------------------------------------------------
//
// Rescaling functions
//
// Author: Skal ([email protected])

#include <assert.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include "src/dsp/dsp.h"
#include "src/utils/rescaler_utils.h"
#include "src/utils/utils.h"

//------------------------------------------------------------------------------

int WebPRescalerInit(WebPRescaler* const rescaler,
                     int src_width, int src_height,
                     uint8_t* const dst,
                     int dst_width, int dst_height, int dst_stride,
                     int num_channels, rescaler_t* const work) { … }

int WebPRescalerGetScaledDimensions(int src_width, int src_height,
                                    int* const scaled_width,
                                    int* const scaled_height) { … }

//------------------------------------------------------------------------------
// all-in-one calls

int WebPRescaleNeededLines(const WebPRescaler* const rescaler,
                           int max_num_lines) { … }

int WebPRescalerImport(WebPRescaler* const rescaler, int num_lines,
                       const uint8_t* src, int src_stride) { … }

int WebPRescalerExport(WebPRescaler* const rescaler) { … }

//------------------------------------------------------------------------------