skia2/tools/skpmaker.cpp

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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Simple tool to generate SKP files for testing.
*/
#include "SkCanvas.h"
#include "SkColor.h"
#include "SkCommandLineFlags.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkScalar.h"
#include "SkStream.h"
#include <stdlib.h>
// Flags used by this file, alphabetically:
DEFINE_int32(blue, 128, "Value of blue color channel in image, 0-255.");
DEFINE_int32(border, 4, "Width of the black border around the image.");
DEFINE_int32(green, 128, "Value of green color channel in image, 0-255.");
DEFINE_int32(height, 200, "Height of canvas to create.");
DEFINE_int32(red, 128, "Value of red color channel in image, 0-255.");
DEFINE_int32(width, 300, "Width of canvas to create.");
DEFINE_string(writePath, "", "Filepath to write the SKP into.");
// Create a 'width' by 'height' skp with a 'border'-wide black border around
// a 'color' rectangle.
static void make_skp(SkScalar width, SkScalar height, SkScalar border, SkColor color,
const char *writePath) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(width, height, nullptr, 0);
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setColor(SK_ColorBLACK);
SkRect r = SkRect::MakeWH(width, height);
canvas->drawRect(r, paint);
paint.setColor(color);
r.inset(border, border);
canvas->drawRect(r, paint);
SkFILEWStream stream(writePath);
recorder.finishRecordingAsPicture()->serialize(&stream);
}
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkCommandLineFlags::SetUsage("Creates a simple .skp file for testing.");
SkCommandLineFlags::Parse(argc, argv);
// Validate flags.
if ((FLAGS_blue < 0) || (FLAGS_blue > 255)) {
SkDebugf("--blue must be within range [0,255]\n");
exit(-1);
}
if ((FLAGS_green < 0) || (FLAGS_green > 255)) {
SkDebugf("--green must be within range [0,255]\n");
exit(-1);
}
if (FLAGS_height <= 0) {
SkDebugf("--height must be >0\n");
exit(-1);
}
if ((FLAGS_red < 0) || (FLAGS_red > 255)) {
SkDebugf("--red must be within range [0,255]\n");
exit(-1);
}
if (FLAGS_width <= 0) {
SkDebugf("--width must be >0\n");
exit(-1);
}
if (FLAGS_writePath.isEmpty()) {
SkDebugf("--writePath must be nonempty\n");
exit(-1);
}
SkColor color = SkColorSetRGB(FLAGS_red, FLAGS_green, FLAGS_blue);
make_skp(SkIntToScalar(FLAGS_width),
SkIntToScalar(FLAGS_height),
SkIntToScalar(FLAGS_border),
color, FLAGS_writePath[0]);
return 0;
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif