const GrFragmentProcessor* GrTextureAdjuster::createFragmentProcessor(
const SkMatrix& origTextureMatrix,
const SkRect& origConstraintRect,
FilterConstraint filterConstraint,
bool coordsLimitedToConstraintRect,
const GrTextureParams::FilterMode* filterOrNullForBicubic) {
SkMatrix textureMatrix = origTextureMatrix;
const SkIRect* contentArea = this->contentAreaOrNull();
// Convert the constraintRect to be relative to the texture rather than the content area so
// that both rects are in the same coordinate system.
SkTCopyOnFirstWrite<SkRect> constraintRect(origConstraintRect);
if (contentArea) {
SkScalar l = SkIntToScalar(contentArea->fLeft);
SkScalar t = SkIntToScalar(contentArea->fTop);
constraintRect.writable()->offset(l, t);
textureMatrix.postTranslate(l, t);
}
SkRect domain;
GrTextureParams params;
if (filterOrNullForBicubic) {
params.setFilterMode(*filterOrNullForBicubic);
}
SkAutoTUnref<GrTexture> texture(this->refTextureSafeForParams(params, nullptr));
if (!texture) {
return nullptr;
}
// If we made a copy then we only copied the contentArea, in which case the new texture is all
// content.
if (texture != this->originalTexture()) {
contentArea = nullptr;
}
DomainMode domainMode =
determine_domain_mode(*constraintRect, filterConstraint, coordsLimitedToConstraintRect,
texture->width(), texture->height(),
contentArea, 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 &&
GrTextureParams::kMipMap_FilterMode == *filterOrNullForBicubic);
static const GrTextureParams::FilterMode kBilerp = GrTextureParams::kBilerp_FilterMode;
domainMode =
determine_domain_mode(*constraintRect, filterConstraint, coordsLimitedToConstraintRect,
texture->width(), texture->height(),
contentArea, &kBilerp, &domain);
SkASSERT(kTightCopy_DomainMode != domainMode);
}
SkASSERT(kNoDomain_DomainMode == domainMode ||
(domain.fLeft <= domain.fRight && domain.fTop <= domain.fBottom));
textureMatrix.postIDiv(texture->width(), texture->height());
return create_fp_for_domain_and_filter(texture, textureMatrix, domainMode, domain,
filterOrNullForBicubic);
}
sk_sp<GrFragmentProcessor> GrTextureMaker::createFragmentProcessor(
const SkMatrix& textureMatrix,
const SkRect& constraintRect,
FilterConstraint filterConstraint,
bool coordsLimitedToConstraintRect,
const GrTextureParams::FilterMode* filterOrNullForBicubic,
SkColorSpace* dstColorSpace,
SkSourceGammaTreatment gammaTreatment) {
const GrTextureParams::FilterMode* fmForDetermineDomain = filterOrNullForBicubic;
if (filterOrNullForBicubic && GrTextureParams::kMipMap_FilterMode == *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 GrTextureParams::FilterMode kBilerp = GrTextureParams::kBilerp_FilterMode;
fmForDetermineDomain = &kBilerp;
}
GrTextureParams params;
if (filterOrNullForBicubic) {
params.reset(SkShader::kClamp_TileMode, *filterOrNullForBicubic);
} else {
// Bicubic doesn't use filtering for it's texture accesses.
params.reset(SkShader::kClamp_TileMode, GrTextureParams::kNone_FilterMode);
}
SkAutoTUnref<GrTexture> texture(this->refTextureForParams(params, gammaTreatment));
if (!texture) {
return nullptr;
}
SkRect domain;
DomainMode domainMode =
determine_domain_mode(constraintRect, filterConstraint, coordsLimitedToConstraintRect,
texture->width(), texture->height(), nullptr, fmForDetermineDomain,
&domain);
SkASSERT(kTightCopy_DomainMode != domainMode);
SkMatrix normalizedTextureMatrix = textureMatrix;
normalizedTextureMatrix.postIDiv(texture->width(), texture->height());
sk_sp<GrColorSpaceXform> colorSpaceXform = GrColorSpaceXform::Make(this->getColorSpace(),
dstColorSpace);
return create_fp_for_domain_and_filter(texture, std::move(colorSpaceXform),
normalizedTextureMatrix, domainMode, domain,
filterOrNullForBicubic);
}
uint16_t GrVkSampler::GenerateKey(const GrTextureParams& params, uint32_t mipLevels) {
const int kTileModeXShift = 2;
const int kTileModeYShift = 4;
const int kMipLevelShift = 6;
uint16_t key = params.filterMode();
SkASSERT(params.filterMode() <= 3);
key |= (params.getTileModeX() << kTileModeXShift);
GR_STATIC_ASSERT(SkShader::kTileModeCount <= 4);
key |= (params.getTileModeY() << kTileModeYShift);
SkASSERT(mipLevels < 1024);
key |= (mipLevels << kMipLevelShift);
return key;
}
GrSingleTextureEffect::GrSingleTextureEffect(GrProcessorDataManager* procDataManager,
GrTexture* texture,
const SkMatrix& m,
const GrTextureParams& params,
GrCoordSet coordSet)
: fCoordTransform(coordSet, m, texture, params.filterMode())
, fTextureAccess(texture, params) {
this->addCoordTransform(&fCoordTransform);
this->addTextureAccess(&fTextureAccess);
}
bool GrGpu::makeCopyForTextureParams(int width, int height, const GrTextureParams& textureParams,
GrTextureProducer::CopyParams* copyParams) const {
const GrCaps& caps = *this->caps();
if (textureParams.isTiled() && !caps.npotTextureTileSupport() &&
(!SkIsPow2(width) || !SkIsPow2(height))) {
copyParams->fWidth = GrNextPow2(width);
copyParams->fHeight = GrNextPow2(height);
switch (textureParams.filterMode()) {
case GrTextureParams::kNone_FilterMode:
copyParams->fFilter = GrTextureParams::kNone_FilterMode;
break;
case GrTextureParams::kBilerp_FilterMode:
case GrTextureParams::kMipMap_FilterMode:
// We are only ever scaling up so no reason to ever indicate kMipMap.
copyParams->fFilter = GrTextureParams::kBilerp_FilterMode;
break;
}
return true;
}
return false;
}