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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmapProvider.h"
#include "SkImage_Base.h"
#include "SkPixelRef.h"
int SkBitmapProvider::width() const {
return fImage ? fImage->width() : fBitmap.width();
}
int SkBitmapProvider::height() const {
return fImage ? fImage->height() : fBitmap.height();
}
uint32_t SkBitmapProvider::getID() const {
return fImage ? fImage->uniqueID() : fBitmap.getGenerationID();
}
bool SkBitmapProvider::validForDrawing() const {
if (!fImage) {
if (0 == fBitmap.width() || 0 == fBitmap.height()) {
return false;
}
if (nullptr == fBitmap.pixelRef()) {
return false; // no pixels to read
}
if (fBitmap.getTexture()) {
// we can handle texture (ugh) since lockPixels will perform a read-back
return true;
}
if (kIndex_8_SkColorType == fBitmap.colorType()) {
SkAutoLockPixels alp(fBitmap); // but we need to call it before getColorTable() is safe.
if (!fBitmap.getColorTable()) {
return false;
}
}
}
return true;
}
SkImageInfo SkBitmapProvider::info() const {
if (fImage) {
SkAlphaType at = fImage->isOpaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
return SkImageInfo::MakeN32(fImage->width(), fImage->height(), at);
} else {
return fBitmap.info();
}
}
bool SkBitmapProvider::isVolatile() const {
if (fImage) {
return false; // add flag to images?
} else {
return fBitmap.isVolatile();
}
}
SkBitmapCacheDesc SkBitmapProvider::makeCacheDesc(int w, int h) const {
return fImage ? SkBitmapCacheDesc::Make(fImage, w, h) : SkBitmapCacheDesc::Make(fBitmap, w, h);
}
SkBitmapCacheDesc SkBitmapProvider::makeCacheDesc() const {
return fImage ? SkBitmapCacheDesc::Make(fImage) : SkBitmapCacheDesc::Make(fBitmap);
}
void SkBitmapProvider::notifyAddedToCache() const {
if (fImage) {
as_IB(fImage)->notifyAddedToCache();
} else {
fBitmap.pixelRef()->notifyAddedToCache();
}
}
bool SkBitmapProvider::asBitmap(SkBitmap* bm) const {
if (fImage) {
return as_IB(fImage)->getROPixels(bm, SkImage::kAllow_CachingHint);
} else {
*bm = fBitmap;
return true;
}
}
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