tools/Resources.cpp

   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
   8 #include "Resources.h"
   9 #include "SkBitmap.h"
  10 #include "SkCommandLineFlags.h"
  11 #include "SkData.h"
  12 #include "SkImage.h"
  13 #include "SkImageGenerator.h"
  14 #include "SkOSFile.h"
  15 #include "SkStream.h"
  16 #include "SkTypeface.h"
  17
  18 DEFINE_string2(resourcePath, i, "resources", "Directory with test resources: images, fonts, etc.");
  19
  20 SkString GetResourcePath(const char* resource) {
  21     return SkOSPath::Join(FLAGS_resourcePath[0], resource);
  22 }
  23
  24 void SetResourcePath(const char* resource) {
  25     FLAGS_resourcePath.set(0, resource);
  26 }
  27
  28 bool GetResourceAsBitmap(const char* resource, SkBitmap* dst) {
  29     SkString resourcePath = GetResourcePath(resource);
  30     SkAutoTUnref<SkData> resourceData(SkData::NewFromFileName(resourcePath.c_str()));
  31     SkAutoTDelete<SkImageGenerator> gen(SkImageGenerator::NewFromEncoded(resourceData));
  32     return gen && gen->tryGenerateBitmap(dst);
  33 }
  34
  35 SkImage* GetResourceAsImage(const char* resource) {
  36     SkString path = GetResourcePath(resource);
  37     SkAutoTUnref<SkData> resourceData(SkData::NewFromFileName(path.c_str()));
  38     return SkImage::NewFromEncoded(resourceData);
  39 }
  40
  41 SkStreamAsset* GetResourceAsStream(const char* resource) {
  42     SkString resourcePath = GetResourcePath(resource);
  43     SkAutoTDelete<SkFILEStream> stream(new SkFILEStream(resourcePath.c_str()));
  44     if (stream->isValid()) {
  45         return stream.detach();
  46     } else {
  47         SkDebugf("Resource %s not found.\n", resource);
  48         return nullptr;
  49     }
  50 }
  51
  52 SkTypeface* GetResourceAsTypeface(const char* resource) {
  53     SkAutoTDelete<SkStreamAsset> stream(GetResourceAsStream(resource));
  54     if (!stream) {
  55         return nullptr;
  56     }
  57     return SkTypeface::CreateFromStream(stream.detach());
  58 }