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      1 /*
      2  * Copyright 2012 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 "picture_utils.h"
      9 #include "SkBitmap.h"
     10 #include "SkColorPriv.h"
     11 #include "SkImageEncoder.h"
     12 #include "SkOSFile.h"
     13 #include "SkPicture.h"
     14 #include "SkStream.h"
     15 #include "SkString.h"
     16 
     17 namespace sk_tools {
     18     void force_all_opaque(const SkBitmap& bitmap) {
     19         SkASSERT(nullptr == bitmap.getTexture());
     20         SkASSERT(kN32_SkColorType == bitmap.colorType());
     21         if (bitmap.getTexture() || kN32_SkColorType == bitmap.colorType()) {
     22             return;
     23         }
     24 
     25         SkAutoLockPixels lock(bitmap);
     26         for (int y = 0; y < bitmap.height(); y++) {
     27             for (int x = 0; x < bitmap.width(); x++) {
     28                 *bitmap.getAddr32(x, y) |= (SK_A32_MASK << SK_A32_SHIFT);
     29             }
     30         }
     31     }
     32 
     33     void replace_char(SkString* str, const char oldChar, const char newChar) {
     34         if (nullptr == str) {
     35             return;
     36         }
     37         for (size_t i = 0; i < str->size(); ++i) {
     38             if (oldChar == str->operator[](i)) {
     39                 str->operator[](i) = newChar;
     40             }
     41         }
     42     }
     43 
     44     bool is_percentage(const char* const string) {
     45         SkString skString(string);
     46         return skString.endsWith("%");
     47     }
     48 
     49     void setup_bitmap(SkBitmap* bitmap, int width, int height) {
     50         bitmap->allocN32Pixels(width, height);
     51         bitmap->eraseColor(SK_ColorTRANSPARENT);
     52     }
     53 
     54     bool write_bitmap_to_disk(const SkBitmap& bm, const SkString& dirPath,
     55                               const char *subdirOrNull, const SkString& baseName) {
     56         SkString partialPath;
     57         if (subdirOrNull) {
     58             partialPath = SkOSPath::Join(dirPath.c_str(), subdirOrNull);
     59             sk_mkdir(partialPath.c_str());
     60         } else {
     61             partialPath.set(dirPath);
     62         }
     63         SkString fullPath = SkOSPath::Join(partialPath.c_str(), baseName.c_str());
     64         if (SkImageEncoder::EncodeFile(fullPath.c_str(), bm, SkImageEncoder::kPNG_Type, 100)) {
     65             return true;
     66         } else {
     67             SkDebugf("Failed to write the bitmap to %s.\n", fullPath.c_str());
     68             return false;
     69         }
     70     }
     71 
     72 } // namespace sk_tools
     73