blob: ca25e00294a19d28d9b2806ebffb55478e5f6f56 [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 "src/gpu/GrTextureMaker.h"
#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"
sk_sp<GrTextureProxy> GrTextureMaker::onRefTextureProxyForParams(const GrSamplerState& params,
bool willBeMipped,
SkScalar scaleAdjust[2]) {
if (this->width() > this->context()->priv().caps()->maxTextureSize() ||
this->height() > this->context()->priv().caps()->maxTextureSize()) {
return nullptr;
CopyParams copyParams;
sk_sp<GrTextureProxy> original(this->refOriginalTextureProxy(willBeMipped,
bool needsCopyForMipsOnly = false;
if (original) {
if (!params.isRepeated() ||
!GrGpu::IsACopyNeededForRepeatWrapMode(this->context()->priv().caps(), original.get(),
original->width(), original->height(),
params.filter(), &copyParams, scaleAdjust)) {
needsCopyForMipsOnly = GrGpu::IsACopyNeededForMips(this->context()->priv().caps(),
original.get(), params.filter(),
if (!needsCopyForMipsOnly) {
return original;
} else {
if (!params.isRepeated() ||
!GrGpu::IsACopyNeededForRepeatWrapMode(this->context()->priv().caps(), nullptr,
this->width(), this->height(),
params.filter(), &copyParams, scaleAdjust)) {
return this->refOriginalTextureProxy(willBeMipped, AllowedTexGenType::kAny);
GrProxyProvider* proxyProvider = this->context()->priv().proxyProvider();
GrSurfaceOrigin origOrigin = original ? original->origin() : kTopLeft_GrSurfaceOrigin;
GrUniqueKey copyKey;
this->makeCopyKey(copyParams, &copyKey);
sk_sp<GrTextureProxy> cachedProxy;
if (copyKey.isValid()) {
cachedProxy = proxyProvider->findOrCreateProxyByUniqueKey(copyKey, origOrigin);
if (cachedProxy && (!willBeMipped || GrMipMapped::kYes == cachedProxy->mipMapped())) {
return cachedProxy;
sk_sp<GrTextureProxy> source;
if (original) {
source = std::move(original);
} else if (cachedProxy) {
source = cachedProxy;
} else {
// Since we will be copying this texture there is no reason to make it mipped
source = this->refOriginalTextureProxy(false, AllowedTexGenType::kAny);
if (!source) {
return nullptr;
sk_sp<GrTextureProxy> result =
CopyOnGpu(this->context(), source, this->colorType(), copyParams, willBeMipped);
if (!result) {
// 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.
if (needsCopyForMipsOnly) {
return source;
return nullptr;
if (copyKey.isValid()) {
SkASSERT(result->origin() == origOrigin);
if (cachedProxy) {
SkASSERT(GrMipMapped::kYes == result->mipMapped() &&
GrMipMapped::kNo == cachedProxy->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(cachedProxy->getUniqueKey() == copyKey);
proxyProvider->assignUniqueKeyToProxy(copyKey, result.get());
this->didCacheCopy(copyKey, proxyProvider->contextID());
return result;
std::unique_ptr<GrFragmentProcessor> GrTextureMaker::createFragmentProcessor(
const SkMatrix& textureMatrix,
const SkRect& constraintRect,
FilterConstraint filterConstraint,
bool coordsLimitedToConstraintRect,
const GrSamplerState::Filter* filterOrNullForBicubic) {
const GrSamplerState::Filter* fmForDetermineDomain = filterOrNullForBicubic;
if (filterOrNullForBicubic && GrSamplerState::Filter::kMipMap == *filterOrNullForBicubic &&
kYes_FilterConstraint == filterConstraint) {
// TODO: Here we should force a copy restricted to the constraintRect since MIP maps will
// read outside the constraint rect. However, as in the adjuster case, we aren't currently
// doing that.
// We instead we compute the domain as though were bilerping which is only correct if we
// only sample level 0.
static const GrSamplerState::Filter kBilerp = GrSamplerState::Filter::kBilerp;
fmForDetermineDomain = &kBilerp;
SkScalar scaleAdjust[2] = { 1.0f, 1.0f };
sk_sp<GrTextureProxy> proxy(this->refTextureProxyForParams(filterOrNullForBicubic,
if (!proxy) {
return nullptr;
SkMatrix adjustedMatrix = textureMatrix;
adjustedMatrix.postScale(scaleAdjust[0], scaleAdjust[1]);
SkRect domain;
DomainMode domainMode =
DetermineDomainMode(constraintRect, filterConstraint, coordsLimitedToConstraintRect,
proxy.get(), fmForDetermineDomain, &domain);
SkASSERT(kTightCopy_DomainMode != domainMode);
return this->createFragmentProcessorForDomainAndFilter(
std::move(proxy), adjustedMatrix, domainMode, domain, filterOrNullForBicubic);