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/*
* 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 "GrTextureRenderTargetProxy.h"
// Deferred version
// This class is virtually derived from GrSurfaceProxy (via both GrTextureProxy and
// GrRenderTargetProxy) so its constructor must be explicitly called.
GrTextureRenderTargetProxy::GrTextureRenderTargetProxy(const GrCaps& caps,
const GrSurfaceDesc& desc,
SkBackingFit fit,
SkBudgeted budgeted,
uint32_t flags)
: GrSurfaceProxy(desc, fit, budgeted, flags)
// for now textures w/ data are always wrapped
, GrTextureProxy(desc, fit, budgeted, nullptr, 0, flags)
, GrRenderTargetProxy(caps, desc, fit, budgeted, flags) {
}
// Wrapped version
// This class is virtually derived from GrSurfaceProxy (via both GrTextureProxy and
// GrRenderTargetProxy) so its constructor must be explicitly called.
GrTextureRenderTargetProxy::GrTextureRenderTargetProxy(sk_sp<GrSurface> surf)
: GrSurfaceProxy(surf, SkBackingFit::kExact)
, GrTextureProxy(sk_ref_sp(surf->asTexture()))
, GrRenderTargetProxy(sk_ref_sp(surf->asRenderTarget())) {
SkASSERT(surf->asTexture());
SkASSERT(surf->asRenderTarget());
}
size_t GrTextureRenderTargetProxy::onUninstantiatedGpuMemorySize() const {
int colorSamplesPerPixel = this->numColorSamples() + 1;
static const bool kHasMipMaps = true;
// TODO: add tracking of mipmap state to improve the estimate. We track whether we are created
// with mip maps but not whether a texture read from the proxy will lazily generate mip maps.
// TODO: do we have enough information to improve this worst case estimate?
return GrSurface::ComputeSize(fConfig, fWidth, fHeight, colorSamplesPerPixel, kHasMipMaps,
SkBackingFit::kApprox == fFit);
}
GrSurface* GrTextureRenderTargetProxy::instantiate(GrResourceProvider* resourceProvider) {
static constexpr GrSurfaceFlags kFlags = kRenderTarget_GrSurfaceFlag;
GrSurface* surf = this->instantiateImpl(resourceProvider, this->numStencilSamples(), kFlags,
this->isMipMapped(), this->mipColorMode());
if (!surf) {
return nullptr;
}
SkASSERT(surf->asRenderTarget());
SkASSERT(surf->asTexture());
return surf;
}
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