SkBitmapProcInfo::SkBitmapProcInfo(const SkBitmap& bm,
SkShader::TileMode tmx, SkShader::TileMode tmy)
: fProvider(SkBitmapProvider(bm))
, fTileModeX(tmx)
, fTileModeY(tmy)
, fBMState(nullptr)
{}
SkShaderBase::Context* SkImageShader::onMakeContext(const ContextRec& rec,
SkArenaAlloc* alloc) const {
const auto info = as_IB(fImage)->onImageInfo();
if (info.colorType() != kN32_SkColorType) {
return nullptr;
}
if (info.alphaType() == kUnpremul_SkAlphaType) {
return nullptr;
}
#ifndef SK_SUPPORT_LEGACY_TILED_BITMAPS
if (fTileModeX != fTileModeY) {
return nullptr;
}
#endif
if (fTileModeX == kDecal_TileMode || fTileModeY == kDecal_TileMode) {
return nullptr;
}
SkMatrix inv;
if (!this->computeTotalInverse(*rec.fMatrix, rec.fLocalMatrix, &inv) ||
!legacy_shader_can_handle(inv)) {
return nullptr;
}
return SkBitmapProcLegacyShader::MakeContext(*this, fTileModeX, fTileModeY,
SkBitmapProvider(fImage.get(), rec.fDstColorSpace),
rec, alloc);
}
SkBitmapProcState::SkBitmapProcState(const SkBitmap& bm,
SkShader::TileMode tmx, SkShader::TileMode tmy)
: fProvider(SkBitmapProvider(bm))
, fBMState(nullptr)
{
fTileModeX = tmx;
fTileModeY = tmy;
}
SkBitmapProcInfo::SkBitmapProcInfo(const SkBitmap& bm,
SkShader::TileMode tmx, SkShader::TileMode tmy,
SkSourceGammaTreatment treatment)
: fProvider(SkBitmapProvider(bm))
, fTileModeX(tmx)
, fTileModeY(tmy)
, fSrcGammaTreatment(treatment)
, fBMState(nullptr)
{}
SkShader::Context* SkImageShader::onCreateContext(const ContextRec& rec, void* storage) const {
return SkBitmapProcShader::MakeContext(*this, fTileModeX, fTileModeY,
SkBitmapProvider(fImage), rec, storage);
}
SkShader::Context* SkBitmapProcShader::onCreateContext(const ContextRec& rec, void* storage) const {
return MakeContext(*this, (TileMode)fTileModeX, (TileMode)fTileModeY,
SkBitmapProvider(fRawBitmap), rec, storage);
}
size_t SkImageShader::onContextSize(const ContextRec& rec) const {
return SkBitmapProcLegacyShader::ContextSize(rec, SkBitmapProvider(fImage).info());
}