bool SkSurface_Gpu::onCharacterize(SkSurfaceCharacterization* data) const {
GrRenderTargetContext* rtc = fDevice->accessRenderTargetContext();
GrContext* ctx = fDevice->context();
int maxResourceCount;
size_t maxResourceBytes;
ctx->getResourceCacheLimits(&maxResourceCount, &maxResourceBytes);
bool mipmapped = rtc->asTextureProxy() ? GrMipMapped::kYes == rtc->asTextureProxy()->mipMapped()
: false;
data->set(ctx->threadSafeProxy(), maxResourceBytes,
rtc->origin(), rtc->width(), rtc->height(),
rtc->colorSpaceInfo().config(), rtc->fsaaType(), rtc->numStencilSamples(),
SkSurfaceCharacterization::Textureable(SkToBool(rtc->asTextureProxy())),
SkSurfaceCharacterization::MipMapped(mipmapped),
rtc->colorSpaceInfo().refColorSpace(), this->props());
return true;
}
bool SkSurface_Gpu::isCompatible(const SkSurfaceCharacterization& data) const {
GrRenderTargetContext* rtc = fDevice->accessRenderTargetContext();
GrContext* ctx = fDevice->context();
if (!data.isValid()) {
return false;
}
// As long as the current state if the context allows for greater or equal resources,
// we allow the DDL to be replayed.
// DDL TODO: should we just remove the resource check and ignore the cache limits on playback?
int maxResourceCount;
size_t maxResourceBytes;
ctx->getResourceCacheLimits(&maxResourceCount, &maxResourceBytes);
if (data.isTextureable()) {
if (!rtc->asTextureProxy()) {
// If the characterization was textureable we require the replay dest to also be
// textureable. If the characterized surface wasn't textureable we allow the replay
// dest to be textureable.
return false;
}
if (data.isMipMapped() && GrMipMapped::kNo == rtc->asTextureProxy()->mipMapped()) {
// Fail if the DDL's surface was mipmapped but the replay surface is not.
// Allow drawing to proceed if the DDL was not mipmapped but the replay surface is.
return false;
}
}
return data.contextInfo() && data.contextInfo()->matches(ctx) &&
data.cacheMaxResourceBytes() <= maxResourceBytes &&
data.origin() == rtc->origin() && data.width() == rtc->width() &&
data.height() == rtc->height() && data.config() == rtc->colorSpaceInfo().config() &&
data.fsaaType() == rtc->fsaaType() && data.stencilCount() == rtc->numStencilSamples() &&
SkColorSpace::Equals(data.colorSpace(), rtc->colorSpaceInfo().colorSpace()) &&
data.surfaceProps() == rtc->surfaceProps();
}