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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 static void skpmaker(int width, int height, int border, SkColor color,
     29                      const char *writePath) {
     30     SkPictureRecorder recorder;
     31     SkCanvas* canvas = recorder.beginRecording(width, height, NULL, 0);
     32     SkPaint paint;
     33     paint.setStyle(SkPaint::kFill_Style);
     34     paint.setColor(SK_ColorBLACK);
     35     canvas->drawRectCoords(0, 0, SkIntToScalar(width), SkIntToScalar(height), paint);
     36     paint.setColor(color);
     37     canvas->drawRectCoords(SkIntToScalar(border), SkIntToScalar(border),
     38                            SkIntToScalar(width - border*2), SkIntToScalar(height - border*2),
     39                            paint);
     40     SkAutoTUnref<SkPicture> pict(recorder.endRecording());
     41     SkFILEWStream stream(writePath);
     42     pict->serialize(&stream);
     43 }
     44 
     45 int tool_main(int argc, char** argv);
     46 int tool_main(int argc, char** argv) {
     47     SkCommandLineFlags::SetUsage("Creates a simple .skp file for testing.");
     48     SkCommandLineFlags::Parse(argc, argv);
     49 
     50     // Validate flags.
     51     if ((FLAGS_blue < 0) || (FLAGS_blue > 255)) {
     52         SkDebugf("--blue must be within range [0,255]\n");
     53         exit(-1);
     54     }
     55     if ((FLAGS_green < 0) || (FLAGS_green > 255)) {
     56         SkDebugf("--green must be within range [0,255]\n");
     57         exit(-1);
     58     }
     59     if (FLAGS_height <= 0) {
     60         SkDebugf("--height must be >0\n");
     61         exit(-1);
     62     }
     63     if ((FLAGS_red < 0) || (FLAGS_red > 255)) {
     64         SkDebugf("--red must be within range [0,255]\n");
     65         exit(-1);
     66     }
     67     if (FLAGS_width <= 0) {
     68         SkDebugf("--width must be >0\n");
     69         exit(-1);
     70     }
     71     if (FLAGS_writePath.isEmpty()) {
     72         SkDebugf("--writePath must be nonempty\n");
     73         exit(-1);
     74     }
     75 
     76     SkColor color = SkColorSetRGB(FLAGS_red, FLAGS_green, FLAGS_blue);
     77     skpmaker(FLAGS_width, FLAGS_height, FLAGS_border, color, FLAGS_writePath[0]);
     78     return 0;
     79 }
     80 
     81 #if !defined SK_BUILD_FOR_IOS
     82 int main(int argc, char * const argv[]) {
     83     return tool_main(argc, (char**) argv);
     84 }
     85 #endif
     86