1/*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 *
7 * Simple tool to generate SKP files for testing.
8 */
9
10#include "SkCanvas.h"
11#include "SkColor.h"
12#include "SkCommandLineFlags.h"
13#include "SkPaint.h"
14#include "SkPicture.h"
15#include "SkPictureRecorder.h"
16#include "SkScalar.h"
17#include "SkStream.h"
18
19// Flags used by this file, alphabetically:
20DEFINE_int32(blue, 128, "Value of blue color channel in image, 0-255.");
21DEFINE_int32(border, 4, "Width of the black border around the image.");
22DEFINE_int32(green, 128, "Value of green color channel in image, 0-255.");
23DEFINE_int32(height, 200, "Height of canvas to create.");
24DEFINE_int32(red, 128, "Value of red color channel in image, 0-255.");
25DEFINE_int32(width, 300, "Width of canvas to create.");
26DEFINE_string(writePath, "", "Filepath to write the SKP into.");
27
28// Create a 'width' by 'height' skp with a 'border'-wide black border around
29// a 'color' rectangle.
30static void make_skp(SkScalar width, SkScalar height, SkScalar border, SkColor color,
31                     const char *writePath) {
32    SkPictureRecorder recorder;
33    SkCanvas* canvas = recorder.beginRecording(width, height, NULL, 0);
34    SkPaint paint;
35    paint.setStyle(SkPaint::kFill_Style);
36    paint.setColor(SK_ColorBLACK);
37    SkRect r = SkRect::MakeWH(width, height);
38    canvas->drawRect(r, paint);
39    paint.setColor(color);
40    r.inset(border, border);
41    canvas->drawRect(r, paint);
42    SkAutoTUnref<SkPicture> pict(recorder.endRecording());
43    SkFILEWStream stream(writePath);
44    pict->serialize(&stream);
45}
46
47int tool_main(int argc, char** argv);
48int tool_main(int argc, char** argv) {
49    SkCommandLineFlags::SetUsage("Creates a simple .skp file for testing.");
50    SkCommandLineFlags::Parse(argc, argv);
51
52    // Validate flags.
53    if ((FLAGS_blue < 0) || (FLAGS_blue > 255)) {
54        SkDebugf("--blue must be within range [0,255]\n");
55        exit(-1);
56    }
57    if ((FLAGS_green < 0) || (FLAGS_green > 255)) {
58        SkDebugf("--green must be within range [0,255]\n");
59        exit(-1);
60    }
61    if (FLAGS_height <= 0) {
62        SkDebugf("--height must be >0\n");
63        exit(-1);
64    }
65    if ((FLAGS_red < 0) || (FLAGS_red > 255)) {
66        SkDebugf("--red must be within range [0,255]\n");
67        exit(-1);
68    }
69    if (FLAGS_width <= 0) {
70        SkDebugf("--width must be >0\n");
71        exit(-1);
72    }
73    if (FLAGS_writePath.isEmpty()) {
74        SkDebugf("--writePath must be nonempty\n");
75        exit(-1);
76    }
77
78    SkColor color = SkColorSetRGB(FLAGS_red, FLAGS_green, FLAGS_blue);
79    make_skp(SkIntToScalar(FLAGS_width),
80             SkIntToScalar(FLAGS_height),
81             SkIntToScalar(FLAGS_border),
82             color, FLAGS_writePath[0]);
83    return 0;
84}
85
86#if !defined SK_BUILD_FOR_IOS
87int main(int argc, char * const argv[]) {
88    return tool_main(argc, (char**) argv);
89}
90#endif
91