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lottie/vector: Added reset api to VBitmap class

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This commit is contained in:
subhransu mohanty 2019-06-12 16:45:32 +09:00 committed by Subhransu
parent 4bc1a193af
commit 5f6e550111
2 changed files with 22 additions and 5 deletions
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26
src/vector/vbitmap.cpp
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@ -40,6 +40,13 @@ struct VBitmap::Impl {
mOwnData(true),
mRoData(false)
{
reset(width, height, format);
}
void reset(uint width, uint height, VBitmap::Format format)
{
if (mOwnData && mData) delete(mData);
mDepth = depth(format);
uint stride = ((width * mDepth + 31) >> 5) << 2; // bytes per scanline (must be multiple of 4)
@ -49,11 +56,6 @@ struct VBitmap::Impl {
mStride = stride;
mBytes = mStride * mHeight;
mData = reinterpret_cast<uchar *>(::operator new(mBytes));
if (!mData) {
// handle malloc failure
;
}
}
Impl(uchar *data, uint w, uint h, uint bytesPerLine, VBitmap::Format format):
@ -150,6 +152,20 @@ VBitmap::VBitmap(uchar *data, uint width, uint height, uint bytesPerLine,
mImpl = std::make_shared<Impl>(data, width, height, bytesPerLine, format);
}
void VBitmap::reset(uint w, uint h, VBitmap::Format format)
{
if (mImpl) {
if (w == mImpl->width() &&
h == mImpl->height() &&
format == mImpl->format()) {
return;
}
mImpl->reset(w, h, format);
} else {
mImpl = std::make_shared<Impl>(w, h, format);
}
}
uint VBitmap::stride() const
{
return mImpl ? mImpl->stride() : 0;

1
src/vector/vbitmap.h
View File

@ -37,6 +37,7 @@ public:
VBitmap(uint w, uint h, VBitmap::Format format);
VBitmap(uchar *data, uint w, uint h, uint bytesPerLine, VBitmap::Format format);
void reset(uint w, uint h, VBitmap::Format format=Format::ARGB32_Premultiplied);
uint stride() const;
uint width() const;
uint height() const;