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#include <stdlib.h>
20
21// Flags used by this file, alphabetically:
22DEFINE_int32(blue, 128, "Value of blue color channel in image, 0-255.");
23DEFINE_int32(border, 4, "Width of the black border around the image.");
24DEFINE_int32(green, 128, "Value of green color channel in image, 0-255.");
25DEFINE_int32(height, 200, "Height of canvas to create.");
26DEFINE_int32(red, 128, "Value of red color channel in image, 0-255.");
27DEFINE_int32(width, 300, "Width of canvas to create.");
28DEFINE_string(writePath, "", "Filepath to write the SKP into.");
29
30// Create a 'width' by 'height' skp with a 'border'-wide black border around
31// a 'color' rectangle.
32static void make_skp(SkScalar width, SkScalar height, SkScalar border, SkColor color,
33                     const char *writePath) {
34    SkPictureRecorder recorder;
35    SkCanvas* canvas = recorder.beginRecording(width, height, nullptr, 0);
36    SkPaint paint;
37    paint.setStyle(SkPaint::kFill_Style);
38    paint.setColor(SK_ColorBLACK);
39    SkRect r = SkRect::MakeWH(width, height);
40    canvas->drawRect(r, paint);
41    paint.setColor(color);
42    r.inset(border, border);
43    canvas->drawRect(r, paint);
44    SkAutoTUnref<SkPicture> pict(recorder.endRecording());
45    SkFILEWStream stream(writePath);
46    pict->serialize(&stream);
47}
48
49int tool_main(int argc, char** argv);
50int tool_main(int argc, char** argv) {
51    SkCommandLineFlags::SetUsage("Creates a simple .skp file for testing.");
52    SkCommandLineFlags::Parse(argc, argv);
53
54    // Validate flags.
55    if ((FLAGS_blue < 0) || (FLAGS_blue > 255)) {
56        SkDebugf("--blue must be within range [0,255]\n");
57        exit(-1);
58    }
59    if ((FLAGS_green < 0) || (FLAGS_green > 255)) {
60        SkDebugf("--green must be within range [0,255]\n");
61        exit(-1);
62    }
63    if (FLAGS_height <= 0) {
64        SkDebugf("--height must be >0\n");
65        exit(-1);
66    }
67    if ((FLAGS_red < 0) || (FLAGS_red > 255)) {
68        SkDebugf("--red must be within range [0,255]\n");
69        exit(-1);
70    }
71    if (FLAGS_width <= 0) {
72        SkDebugf("--width must be >0\n");
73        exit(-1);
74    }
75    if (FLAGS_writePath.isEmpty()) {
76        SkDebugf("--writePath must be nonempty\n");
77        exit(-1);
78    }
79
80    SkColor color = SkColorSetRGB(FLAGS_red, FLAGS_green, FLAGS_blue);
81    make_skp(SkIntToScalar(FLAGS_width),
82             SkIntToScalar(FLAGS_height),
83             SkIntToScalar(FLAGS_border),
84             color, FLAGS_writePath[0]);
85    return 0;
86}
87
88#if !defined SK_BUILD_FOR_IOS
89int main(int argc, char * const argv[]) {
90    return tool_main(argc, (char**) argv);
91}
92#endif
93