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      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:
     20 DEFINE_int32(blue, 128, "Value of blue color channel in image, 0-255.");
     21 DEFINE_int32(border, 4, "Width of the black border around the image.");
     22 DEFINE_int32(green, 128, "Value of green color channel in image, 0-255.");
     23 DEFINE_int32(height, 200, "Height of canvas to create.");
     24 DEFINE_int32(red, 128, "Value of red color channel in image, 0-255.");
     25 DEFINE_int32(width, 300, "Width of canvas to create.");
     26 DEFINE_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.
     30 static 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 
     47 int tool_main(int argc, char** argv);
     48 int 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
     87 int main(int argc, char * const argv[]) {
     88     return tool_main(argc, (char**) argv);
     89 }
     90 #endif
     91