skia2/tools/picture_utils.cpp

73 lines
2.2 KiB
C++

/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "picture_utils.h"
#include "SkBitmap.h"
#include "SkColorPriv.h"
#include "SkImageEncoder.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkString.h"
namespace sk_tools {
void force_all_opaque(const SkBitmap& bitmap) {
SkASSERT(NULL == bitmap.getTexture());
SkASSERT(kN32_SkColorType == bitmap.colorType());
if (bitmap.getTexture() || kN32_SkColorType == bitmap.colorType()) {
return;
}
SkAutoLockPixels lock(bitmap);
for (int y = 0; y < bitmap.height(); y++) {
for (int x = 0; x < bitmap.width(); x++) {
*bitmap.getAddr32(x, y) |= (SK_A32_MASK << SK_A32_SHIFT);
}
}
}
void replace_char(SkString* str, const char oldChar, const char newChar) {
if (NULL == str) {
return;
}
for (size_t i = 0; i < str->size(); ++i) {
if (oldChar == str->operator[](i)) {
str->operator[](i) = newChar;
}
}
}
bool is_percentage(const char* const string) {
SkString skString(string);
return skString.endsWith("%");
}
void setup_bitmap(SkBitmap* bitmap, int width, int height) {
bitmap->allocN32Pixels(width, height);
bitmap->eraseColor(SK_ColorTRANSPARENT);
}
bool write_bitmap_to_disk(const SkBitmap& bm, const SkString& dirPath,
const char *subdirOrNull, const SkString& baseName) {
SkString partialPath;
if (subdirOrNull) {
partialPath = SkOSPath::Join(dirPath.c_str(), subdirOrNull);
sk_mkdir(partialPath.c_str());
} else {
partialPath.set(dirPath);
}
SkString fullPath = SkOSPath::Join(partialPath.c_str(), baseName.c_str());
if (SkImageEncoder::EncodeFile(fullPath.c_str(), bm, SkImageEncoder::kPNG_Type, 100)) {
return true;
} else {
SkDebugf("Failed to write the bitmap to %s.\n", fullPath.c_str());
return false;
}
}
} // namespace sk_tools