GrResourceKey GrTexture::ComputeKey(const GrGpu* gpu,
const GrTextureParams* params,
const GrTextureDesc& desc,
const GrCacheID& cacheID) {
GrResourceKey::ResourceFlags flags = get_texture_flags(gpu, params, desc);
return GrResourceKey(cacheID, texture_resource_type(), flags);
}
GrResourceKey GrStencilBuffer::ComputeKey(int width,
int height,
int sampleCnt) {
GrCacheID id(GrStencilBuffer::GetResourceType());
gen_stencil_key_values(width, height, sampleCnt, &id);
uint32_t v[4];
id.toRaw(v);
return GrResourceKey(v);
}
GrResourceKey GrTexture::ComputeKey(const GrGpu* gpu,
const GrTextureParams* params,
const GrTextureDesc& desc,
const GrCacheData& cacheData,
bool scratch) {
GrCacheID id(GrTexture::GetResourceType());
gen_texture_key_values(gpu, params, desc, cacheData, scratch, &id);
uint32_t v[4];
id.toRaw(v);
return GrResourceKey(v);
}
GrResourceKey GrStencilBuffer::ComputeKey(int width,
int height,
int sampleCnt) {
// All SBs are created internally to attach to RTs so they all use the same domain.
static const GrResourceKey::ResourceType gStencilBufferResourceType =
GrResourceKey::GenerateResourceType();
GrCacheID id;
gen_cache_id(width, height, sampleCnt, &id);
// we don't use any flags for SBs currently.
return GrResourceKey(id, gStencilBufferResourceType, 0);
}
GrResourceKey GrTexture::ComputeScratchKey(const GrTextureDesc& desc) {
GrCacheID::Key idKey;
// Instead of a client-provided key of the texture contents we create a key from the
// descriptor.
GR_STATIC_ASSERT(sizeof(idKey) >= 16);
GrAssert(desc.fHeight < (1 << 16));
GrAssert(desc.fWidth < (1 << 16));
idKey.fData32[0] = (desc.fWidth) | (desc.fHeight << 16);
idKey.fData32[1] = desc.fConfig | desc.fSampleCnt << 16;
idKey.fData32[2] = desc.fFlags;
idKey.fData32[3] = resolve_origin(desc); // Only needs 2 bits actually
static const int kPadSize = sizeof(idKey) - 16;
GR_STATIC_ASSERT(kPadSize >= 0);
memset(idKey.fData8 + 16, 0, kPadSize);
GrCacheID cacheID(GrResourceKey::ScratchDomain(), idKey);
return GrResourceKey(cacheID, texture_resource_type(), 0);
}
static GrPathRange* get_gr_glyphs(GrContext* ctx,
const SkTypeface* typeface,
const SkDescriptor* desc,
const SkStrokeRec& stroke) {
static const GrCacheID::Domain gGlyphsDomain = GrCacheID::GenerateDomain();
GrCacheID::Key key;
uint64_t* keyData = key.fData64;
keyData[0] = desc ? desc->getChecksum() : 0;
keyData[0] = (keyData[0] << 32) | (typeface ? typeface->uniqueID() : 0);
keyData[1] = GrPath::ComputeStrokeKey(stroke);
GrResourceKey resourceKey = GrResourceKey(GrCacheID(gGlyphsDomain, key),
GrPathRange::resourceType(), 0);
SkAutoTUnref<GrPathRange> glyphs(
static_cast<GrPathRange*>(ctx->findAndRefCachedResource(resourceKey)));
if (NULL == glyphs || (NULL != desc && !glyphs->isEqualTo(*desc))) {
glyphs.reset(ctx->getGpu()->pathRendering()->createGlyphs(typeface, desc, stroke));
ctx->addResourceToCache(resourceKey, glyphs);
}
return glyphs.detach();
}
