static void make_image_keys(uint32_t imageID, const SkIRect& subset, const SkGrStretch& stretch,
GrUniqueKey* key, GrUniqueKey* stretchedKey) {
make_unstretched_key(key, imageID, subset);
if (SkGrStretch::kNone_Type != stretch.fType) {
GrMakeStretchedKey(*key, stretch, stretchedKey);
}
}
bool onMakeStretchedKey(const SkGrStretch& stretch, GrUniqueKey* stretchedKey) override {
if (fBitmap.isVolatile()) {
return false;
}
GrUniqueKey unstretchedKey;
make_unstretched_key(&unstretchedKey, fBitmap.getGenerationID(), fBitmap.getSubset());
return GrMakeStretchedKey(unstretchedKey, stretch, stretchedKey);
}
bool GrIsImageInCache(const GrContext* ctx, uint32_t imageID, const SkIRect& subset,
GrTexture* nativeTexture, const GrTextureParams* params) {
SkGrStretch stretch;
get_stretch(ctx, subset.width(), subset.height(), params, &stretch);
// Handle the case where the bitmap/image is explicitly texture backed.
if (nativeTexture) {
if (SkGrStretch::kNone_Type == stretch.fType) {
return true;
}
const GrUniqueKey& key = nativeTexture->getUniqueKey();
if (!key.isValid()) {
return false;
}
GrUniqueKey stretchedKey;
GrMakeStretchedKey(key, stretch, &stretchedKey);
return ctx->textureProvider()->existsTextureWithUniqueKey(stretchedKey);
}
GrUniqueKey key, stretchedKey;
make_image_keys(imageID, subset, stretch, &key, &stretchedKey);
return ctx->textureProvider()->existsTextureWithUniqueKey(
(SkGrStretch::kNone_Type == stretch.fType) ? key : stretchedKey);
}
void GrMakeKeyFromImageID(GrUniqueKey* key, uint32_t imageID, const SkIRect& subset,
const GrCaps& caps, SkImageUsageType usage) {
const SkGrStretch::Type stretches[] = {
SkGrStretch::kNone_Type, // kUntiled_SkImageUsageType
SkGrStretch::kNearest_Type, // kTiled_Unfiltered_SkImageUsageType
SkGrStretch::kBilerp_Type, // kTiled_Filtered_SkImageUsageType
};
if (!GrTextureUsageSupported(caps, subset.width(), subset.height(), usage)) {
GrUniqueKey tmpKey;
make_unstretched_key(&tmpKey, imageID, subset);
SkGrStretch stretch;
stretch.fType = stretches[usage];
stretch.fWidth = SkNextPow2(subset.width());
stretch.fHeight = SkNextPow2(subset.height());
if (!GrMakeStretchedKey(tmpKey, stretch, key)) {
goto UNSTRETCHED;
}
} else {
UNSTRETCHED:
make_unstretched_key(key, imageID, subset);
}
}
bool onMakeStretchedKey(const SkGrStretch& stretch, GrUniqueKey* stretchedKey) override {
return GrMakeStretchedKey(fUnstretchedKey, stretch, stretchedKey);
}
