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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkCommandLineFlags.h"
#include "SkCommonFlags.h"
#include "SkData.h"
#include "SkImage.h"
#include "SkStream.h"
#include "SkTypes.h"
#include "sk_tool_utils.h"
DEFINE_string(in, "input.png", "Input image");
DEFINE_string(out, "blurred.png", "Output image");
DEFINE_double(sigma, 1, "Sigma to be used for blur (> 0.0f)");
// This tool just performs a blur on an input image
// Return codes:
static const int kSuccess = 0;
static const int kError = 1;
int main(int argc, char** argv) {
SkCommandLineFlags::SetUsage("Brute force blur of an image.");
SkCommandLineFlags::Parse(argc, argv);
if (FLAGS_sigma <= 0) {
if (!FLAGS_quiet) {
SkDebugf("Sigma must be greater than zero (it is %f).\n", FLAGS_sigma);
}
return kError;
}
sk_sp<SkData> data(SkData::MakeFromFileName(FLAGS_in[0]));
if (nullptr == data) {
if (!FLAGS_quiet) {
SkDebugf("Couldn't open file: %s\n", FLAGS_in[0]);
}
return kError;
}
sk_sp<SkImage> image(SkImage::MakeFromEncoded(data));
if (!image) {
if (!FLAGS_quiet) {
SkDebugf("Couldn't create image for: %s.\n", FLAGS_in[0]);
}
return kError;
}
SkBitmap src;
if (!image->asLegacyBitmap(&src, SkImage::kRW_LegacyBitmapMode)) {
if (!FLAGS_quiet) {
SkDebugf("Couldn't create bitmap for: %s.\n", FLAGS_in[0]);
}
return kError;
}
SkBitmap dst = sk_tool_utils::slow_blur(src, (float) FLAGS_sigma);
if (!sk_tool_utils::EncodeImageToFile(FLAGS_out[0], dst, SkEncodedImageFormat::kPNG, 100)) {
if (!FLAGS_quiet) {
SkDebugf("Couldn't write to file: %s\n", FLAGS_out[0]);
}
return kError;
}
return kSuccess;
}
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