blob: c299fed9f923652d389a3e3bfa1bb1644f268118 [file] [log] [blame]
* Copyright 2016 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "include/private/GrRecordingContext.h"
#include "src/gpu/GrColorSpaceXform.h"
#include "src/gpu/GrGpu.h"
#include "src/gpu/GrProxyProvider.h"
#include "src/gpu/GrRecordingContextPriv.h"
#include "src/gpu/GrTextureAdjuster.h"
#include "src/gpu/SkGr.h"
GrTextureAdjuster::GrTextureAdjuster(GrRecordingContext* context,
sk_sp<GrTextureProxy> original,
GrColorType colorType,
SkAlphaType alphaType,
uint32_t uniqueID,
SkColorSpace* cs,
bool useDecal)
: INHERITED(context, original->width(), original->height(),
, fOriginal(std::move(original))
, fUniqueID(uniqueID) {}
void GrTextureAdjuster::makeCopyKey(const CopyParams& params, GrUniqueKey* copyKey) {
// Destination color space is irrelevant - we already have a texture so we're just sub-setting
GrUniqueKey baseKey;
GrMakeKeyFromImageID(&baseKey, fUniqueID, SkIRect::MakeWH(this->width(), this->height()));
MakeCopyKeyFromOrigKey(baseKey, params, copyKey);
void GrTextureAdjuster::didCacheCopy(const GrUniqueKey& copyKey, uint32_t contextUniqueID) {
// We don't currently have a mechanism for notifications on Images!
sk_sp<GrTextureProxy> GrTextureAdjuster::refTextureProxyCopy(const CopyParams& copyParams,
bool willBeMipped) {
GrProxyProvider* proxyProvider = this->context()->priv().proxyProvider();
GrUniqueKey key;
this->makeCopyKey(copyParams, &key);
sk_sp<GrTextureProxy> cachedCopy;
if (key.isValid()) {
cachedCopy = proxyProvider->findOrCreateProxyByUniqueKey(key,
if (cachedCopy && (!willBeMipped || GrMipMapped::kYes == cachedCopy->mipMapped())) {
return cachedCopy;
sk_sp<GrTextureProxy> proxy = this->originalProxyRef();
sk_sp<GrTextureProxy> copy = CopyOnGpu(this->context(), std::move(proxy), this->colorType(),
copyParams, willBeMipped);
if (copy) {
if (key.isValid()) {
SkASSERT(copy->origin() == this->originalProxy()->origin());
if (cachedCopy) {
SkASSERT(GrMipMapped::kYes == copy->mipMapped() &&
GrMipMapped::kNo == cachedCopy->mipMapped());
// If we had a cachedProxy, that means there already is a proxy in the cache which
// matches the key, but it does not have mip levels and we require them. Thus we
// must remove the unique key from that proxy.
SkASSERT(cachedCopy->getUniqueKey() == key);
proxyProvider->assignUniqueKeyToProxy(key, copy.get());
this->didCacheCopy(key, proxyProvider->contextID());
return copy;
sk_sp<GrTextureProxy> GrTextureAdjuster::onRefTextureProxyForParams(
const GrSamplerState& params,
bool willBeMipped,
SkScalar scaleAdjust[2]) {
sk_sp<GrTextureProxy> proxy = this->originalProxyRef();
CopyParams copyParams;
if (this->context()->priv().abandoned()) {
// The texture was abandoned.
return nullptr;
SkASSERT(this->width() <= this->context()->priv().caps()->maxTextureSize() &&
this->height() <= this->context()->priv().caps()->maxTextureSize());
bool needsCopyForMipsOnly = false;
if (!params.isRepeated() ||
!GrGpu::IsACopyNeededForRepeatWrapMode(this->context()->priv().caps(), proxy.get(),
proxy->width(), proxy->height(), params.filter(),
&copyParams, scaleAdjust)) {
needsCopyForMipsOnly = GrGpu::IsACopyNeededForMips(this->context()->priv().caps(),
proxy.get(), params.filter(),
if (!needsCopyForMipsOnly) {
return proxy;
sk_sp<GrTextureProxy> result = this->refTextureProxyCopy(copyParams, willBeMipped);
if (!result && needsCopyForMipsOnly) {
// If we were unable to make a copy and we only needed a copy for mips, then we will return
// the source texture here and require that the GPU backend is able to fall back to using
// bilerp if mips are required.
return this->originalProxyRef();
return result;
std::unique_ptr<GrFragmentProcessor> GrTextureAdjuster::createFragmentProcessor(
const SkMatrix& origTextureMatrix,
const SkRect& constraintRect,
FilterConstraint filterConstraint,
bool coordsLimitedToConstraintRect,
const GrSamplerState::Filter* filterOrNullForBicubic) {
SkMatrix textureMatrix = origTextureMatrix;
SkScalar scaleAdjust[2] = { 1.0f, 1.0f };
sk_sp<GrTextureProxy> proxy(
this->refTextureProxyForParams(filterOrNullForBicubic, scaleAdjust));
if (!proxy) {
return nullptr;
// If we made a copy then we only copied the contentArea, in which case the new texture is all
// content.
if (proxy.get() != this->originalProxy()) {
textureMatrix.postScale(scaleAdjust[0], scaleAdjust[1]);
SkRect domain;
DomainMode domainMode =
DetermineDomainMode(constraintRect, filterConstraint, coordsLimitedToConstraintRect,
proxy.get(), filterOrNullForBicubic, &domain);
if (kTightCopy_DomainMode == domainMode) {
// TODO: Copy the texture and adjust the texture matrix (both parts need to consider
// non-int constraint rect)
// For now: treat as bilerp and ignore what goes on above level 0.
// We only expect MIP maps to require a tight copy.
SkASSERT(filterOrNullForBicubic &&
GrSamplerState::Filter::kMipMap == *filterOrNullForBicubic);
static const GrSamplerState::Filter kBilerp = GrSamplerState::Filter::kBilerp;
domainMode =
DetermineDomainMode(constraintRect, filterConstraint, coordsLimitedToConstraintRect,
proxy.get(), &kBilerp, &domain);
SkASSERT(kTightCopy_DomainMode != domainMode);
SkASSERT(kNoDomain_DomainMode == domainMode ||
(domain.fLeft <= domain.fRight && domain.fTop <= domain.fBottom));
return this->createFragmentProcessorForDomainAndFilter(
std::move(proxy), textureMatrix, domainMode, domain, filterOrNullForBicubic);