blob: ce7ffed97c9f63e5c0e0fa9e45963df649804849 [file] [log] [blame]
* Copyright 2011 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef GrTexture_DEFINED
#define GrTexture_DEFINED
#include "include/core/SkImage.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRefCnt.h"
#include "include/gpu/GrBackendSurface.h"
#include "include/private/GrTypesPriv.h"
#include "src/gpu/GrSurface.h"
class GrTexture : virtual public GrSurface {
GrTexture* asTexture() override { return this; }
const GrTexture* asTexture() const override { return this; }
virtual GrBackendTexture getBackendTexture() const = 0;
* This function indicates that the texture parameters (wrap mode, filtering, ...) have been
* changed externally to Skia.
virtual void textureParamsModified() = 0;
* This function steals the backend texture from a uniquely owned GrTexture with no pending
* IO, passing it out to the caller. The GrTexture is deleted in the process.
* Note that if the GrTexture is not uniquely owned (no other refs), or has pending IO, this
* function will fail.
static bool StealBackendTexture(sk_sp<GrTexture>,
/** See addIdleProc. */
enum class IdleState {
* Installs a proc on this texture. It will be called when the texture becomes "idle". There
* are two types of idle states as indicated by IdleState. For managed backends (e.g. GL where
* a driver typically handles CPU/GPU synchronization of resource access) there is no difference
* between the two. They both mean "all work related to the resource has been flushed to the
* backend API and the texture is not owned outside the resource cache".
* If the API is unmanaged (e.g. Vulkan) then kFinished has the additional constraint that the
* work flushed to the GPU is finished.
virtual void addIdleProc(sk_sp<GrRefCntedCallback> idleProc, IdleState) {
// This is the default implementation for the managed case where the IdleState can be
// ignored. Unmanaged backends, e.g. Vulkan, must override this to consider IdleState.
/** Helper version of addIdleProc that creates the ref-counted wrapper. */
void addIdleProc(GrRefCntedCallback::Callback callback,
GrRefCntedCallback::Context context,
IdleState state) {
this->addIdleProc(sk_make_sp<GrRefCntedCallback>(callback, context), state);
GrTextureType textureType() const { return fTextureType; }
bool hasRestrictedSampling() const {
return GrTextureTypeHasRestrictedSampling(this->textureType());
void markMipmapsDirty();
void markMipmapsClean();
GrMipmapped mipmapped() const {
return GrMipmapped(fMipmapStatus != GrMipmapStatus::kNotAllocated);
bool mipmapsAreDirty() const { return fMipmapStatus != GrMipmapStatus::kValid; }
GrMipmapStatus mipmapStatus() const { return fMipmapStatus; }
int maxMipmapLevel() const { return fMaxMipmapLevel; }
static void ComputeScratchKey(const GrCaps& caps,
const GrBackendFormat& format,
SkISize dimensions,
int sampleCnt,
GrScratchKey* key);
GrTexture(GrGpu*, const SkISize&, GrProtected, GrTextureType, GrMipmapStatus);
virtual bool onStealBackendTexture(GrBackendTexture*, SkImage::BackendTextureReleaseProc*) = 0;
SkTArray<sk_sp<GrRefCntedCallback>> fIdleProcs;
void willRemoveLastRef() override {
// We're about to be idle in the resource cache. Do our part to trigger the idle callbacks.
virtual void callIdleProcsOnBehalfOfResource() {}
void computeScratchKey(GrScratchKey*) const override;
size_t onGpuMemorySize() const override;
GrTextureType fTextureType;
GrMipmapStatus fMipmapStatus;
int fMaxMipmapLevel;
friend class GrTextureResource;
using INHERITED = GrSurface;