Cache render targets that render to wrapped textures

src/gpu/gl/GrGLTexture.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLTexture.h"
 #include "GrGLGpu.h"
 #include "SkTraceMemoryDump.h"
 
 #define GPUGL static_cast<GrGLGpu*>(this->getGpu())
 #define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)
 
 inline static GrSLType sampler_type(const GrGLTexture::IDDesc& idDesc, const GrGLGpu* gpu) {
     if (idDesc.fInfo.fTarget == GR_GL_TEXTURE_EXTERNAL) {
         SkASSERT(gpu->glCaps().glslCaps()->externalTextureSupport());
         return kSamplerExternal_GrSLType;
     } else if (idDesc.fInfo.fTarget == GR_GL_TEXTURE_RECTANGLE) {
         SkASSERT(gpu->glCaps().rectangleTextureSupport());
         return kSampler2DRect_GrSLType;
     } else {
         SkASSERT(idDesc.fInfo.fTarget == GR_GL_TEXTURE_2D);
         return kSampler2D_GrSLType;
     }
 }
 
 // Because this class is virtually derived from GrSurface we must explicitly call its constructor.
-GrGLTexture::GrGLTexture(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc)
-    : GrSurface(gpu, idDesc.fLifeCycle, desc)
-    , INHERITED(gpu, idDesc.fLifeCycle, desc, sampler_type(idDesc, gpu), false) {
-    this->init(desc, idDesc);
+GrGLTexture::GrGLTexture(GrGLGpu* gpu, SkBudgeted budgeted, const GrSurfaceDesc& desc,
+                         const IDDesc& idDesc)
+    : GrSurface(gpu, budgeted, desc)
+    , INHERITED(gpu, budgeted, desc, sampler_type(idDesc, gpu), false)
+    , fIDDesc(idDesc) {
+    this->init(desc);
+    this->initScratchKeyIfNeeded();
     this->registerWithCache();
 }
 
-GrGLTexture::GrGLTexture(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc,
-                         bool wasMipMapDataProvided)
-    : GrSurface(gpu, idDesc.fLifeCycle, desc)
-    , INHERITED(gpu, idDesc.fLifeCycle, desc, sampler_type(idDesc, gpu), wasMipMapDataProvided) {
-    this->init(desc, idDesc);
+GrGLTexture::GrGLTexture(GrGLGpu* gpu, SkBudgeted budgeted, const GrSurfaceDesc& desc,
+                         const IDDesc& idDesc, bool wasMipMapDataProvided)
+    : GrSurface(gpu, budgeted, desc)
+    , INHERITED(gpu, budgeted, desc, sampler_type(idDesc, gpu), wasMipMapDataProvided)
+    , fIDDesc(idDesc) {
+    this->init(desc);
+    this->initScratchKeyIfNeeded();
     this->registerWithCache();
 }
 
-GrGLTexture::GrGLTexture(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc, Derived)
-    : GrSurface(gpu, idDesc.fLifeCycle, desc)
-    , INHERITED(gpu, idDesc.fLifeCycle, desc, sampler_type(idDesc, gpu), false) {
-    this->init(desc, idDesc);
+GrGLTexture::GrGLTexture(GrGLGpu* gpu, SkBudgeted budgeted, const GrSurfaceDesc& desc,
+                         const IDDesc& idDesc, Derived)
+    : GrSurface(gpu, budgeted, desc)
+    , INHERITED(gpu, budgeted, desc, sampler_type(idDesc, gpu), false)
+    , fIDDesc(idDesc) {
+    this->init(desc);
+    this->initScratchKeyIfNeeded();
 }
 
-void GrGLTexture::init(const GrSurfaceDesc& desc, const IDDesc& idDesc) {
-    SkASSERT(0 != idDesc.fInfo.fID);
+void GrGLTexture::init(const GrSurfaceDesc& desc) {
+    SkASSERT(0 != fIDDesc.fInfo.fID);
     fTexParams.invalidate();
     fTexParamsTimestamp = GrGpu::kExpiredTimestamp;
-    fInfo = idDesc.fInfo;
-    fTextureIDLifecycle = idDesc.fLifeCycle;
 }
 
 void GrGLTexture::onRelease() {
-    if (fInfo.fID) {
-        if (GrGpuResource::kBorrowed_LifeCycle != fTextureIDLifecycle) {
+    if (fIDDesc.fInfo.fID) {
+        if (GrBackendObjectLifeCycle::kBorrowed != fIDDesc.fLifeCycle) {
             if (this->desc().fTextureStorageAllocator.fDeallocateTextureStorage) {
                 this->desc().fTextureStorageAllocator.fDeallocateTextureStorage(
                         this->desc().fTextureStorageAllocator.fCtx,
-                        reinterpret_cast<GrBackendObject>(&fInfo));
+                        reinterpret_cast<GrBackendObject>(&fIDDesc.fInfo));
             } else {
-                GL_CALL(DeleteTextures(1, &fInfo.fID));
+                GL_CALL(DeleteTextures(1, &fIDDesc.fInfo.fID));
             }
         }
-        fInfo.fID = 0;
+        fIDDesc.fInfo.fID = 0;
     }
     INHERITED::onRelease();
 }
 
 void GrGLTexture::onAbandon() {
-    fInfo.fTarget = 0;
-    fInfo.fID = 0;
+    fIDDesc.fInfo.fTarget = 0;
+    fIDDesc.fInfo.fID = 0;
     INHERITED::onAbandon();
 }
 
+bool GrGLTexture::refsWrappedResources() const {
+    return fIDDesc.fLifeCycle != GrBackendObjectLifeCycle::kInternal;
+}
+
 GrBackendObject GrGLTexture::getTextureHandle() const {
 #ifdef SK_IGNORE_GL_TEXTURE_TARGET
     return static_cast<GrBackendObject>(this->textureID());
 #else
-    return reinterpret_cast<GrBackendObject>(&fInfo);
+    return reinterpret_cast<GrBackendObject>(&fIDDesc.fInfo);
 #endif
 }
 
+size_t GrGLTexture::onGpuMemorySize() const {
+    if (GrBackendObjectLifeCycle::kBorrowed != fIDDesc.fLifeCycle) {
+        return this->INHERITED::onGpuMemorySize();
+    }
+    return 0;
+}
 void GrGLTexture::setMemoryBacking(SkTraceMemoryDump* traceMemoryDump,
                                    const SkString& dumpName) const {
     SkString texture_id;
     texture_id.appendU32(this->textureID());
     traceMemoryDump->setMemoryBacking(dumpName.c_str(), "gl_texture",
                                       texture_id.c_str());
 }