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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"
#include "GrCaps.h"
#include "GrTexture.h"
#include "GrRenderTarget.h"
#include "GrSurfaceProxyPriv.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) {
}
// Lazy-callback version
GrTextureRenderTargetProxy::GrTextureRenderTargetProxy(LazyInstantiateCallback&& callback,
const GrSurfaceDesc& desc,
GrMipMapped mipMapped,
SkBackingFit fit,
SkBudgeted budgeted,
uint32_t flags)
: GrSurfaceProxy(std::move(callback), desc, fit, budgeted, flags)
// Since we have virtual inheritance, we initialize GrSurfaceProxy directly. Send null
// callbacks to the texture and RT proxies simply to route to the appropriate constructors.
, GrTextureProxy(LazyInstantiateCallback(), desc, mipMapped, fit, budgeted, flags)
, GrRenderTargetProxy(LazyInstantiateCallback(), 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,
GrSurfaceOrigin origin)
: GrSurfaceProxy(surf, origin, SkBackingFit::kExact)
, GrTextureProxy(surf, origin)
, GrRenderTargetProxy(surf, origin) {
SkASSERT(surf->asTexture());
SkASSERT(surf->asRenderTarget());
}
size_t GrTextureRenderTargetProxy::onUninstantiatedGpuMemorySize() const {
int colorSamplesPerPixel = this->numColorSamples();
if (colorSamplesPerPixel > 1) {
// Add one to account for the resolve buffer.
++colorSamplesPerPixel += 1;
}
// TODO: do we have enough information to improve this worst case estimate?
return GrSurface::ComputeSize(this->config(), this->width(), this->height(),
colorSamplesPerPixel, this->mipMapped(), !this->priv().isExact());
}
bool GrTextureRenderTargetProxy::instantiate(GrResourceProvider* resourceProvider) {
if (LazyState::kNot != this->lazyInstantiationState()) {
return false;
}
static constexpr GrSurfaceFlags kFlags = kRenderTarget_GrSurfaceFlag;
const GrUniqueKey& key = this->getUniqueKey();
if (!this->instantiateImpl(resourceProvider, this->numStencilSamples(), this->needsStencil(),
kFlags, this->mipMapped(), this->mipColorMode(),
key.isValid() ? &key : nullptr)) {
return false;
}
if (key.isValid()) {
SkASSERT(key == this->getUniqueKey());
}
SkASSERT(fTarget->asRenderTarget());
SkASSERT(fTarget->asTexture());
return true;
}
sk_sp<GrSurface> GrTextureRenderTargetProxy::createSurface(
GrResourceProvider* resourceProvider) const {
static constexpr GrSurfaceFlags kFlags = kRenderTarget_GrSurfaceFlag;
sk_sp<GrSurface> surface = this->createSurfaceImpl(resourceProvider, this->numStencilSamples(),
this->needsStencil(), kFlags,
this->mipMapped(), this->mipColorMode());
if (!surface) {
return nullptr;
}
SkASSERT(surface->asRenderTarget());
SkASSERT(surface->asTexture());
return surface;
}
#ifdef SK_DEBUG
void GrTextureRenderTargetProxy::validateLazyTexture(const GrTexture* texture) {
SkASSERT(texture->asRenderTarget());
SkASSERT(texture->asRenderTarget()->numStencilSamples() == this->numStencilSamples());
SkASSERT(GrMipMapped::kNo == this->mipMapped());
}
#endif
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