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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 #include <stdlib.h>
     20 
     21 // Flags used by this file, alphabetically:
     22 DEFINE_int32(blue, 128, "Value of blue color channel in image, 0-255.");
     23 DEFINE_int32(border, 4, "Width of the black border around the image.");
     24 DEFINE_int32(green, 128, "Value of green color channel in image, 0-255.");
     25 DEFINE_int32(height, 200, "Height of canvas to create.");
     26 DEFINE_int32(red, 128, "Value of red color channel in image, 0-255.");
     27 DEFINE_int32(width, 300, "Width of canvas to create.");
     28 DEFINE_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.
     32 static 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 
     49 int tool_main(int argc, char** argv);
     50 int 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
     89 int main(int argc, char * const argv[]) {
     90     return tool_main(argc, (char**) argv);
     91 }
     92 #endif
     93