Move mock gpu and caps, add Gr prefix, and create via GrContext::Create

Change-Id: I02427839f78372e337ed717b071c6baaa8ba4450
Reviewed-on: https://skia-review.googlesource.com/20622
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

9 files changed, 178 insertions, 200 deletions

diff --git a/bench/GrResourceCacheBench.cpp b/bench/GrResourceCacheBench.cpp
index 903c773f33..9c9ca3551a 100644
--- a/bench/GrResourceCacheBench.cpp
+++ b/bench/GrResourceCacheBench.cpp
@@ -69,7 +69,7 @@ protected:
     }
 
     void onDraw(int loops, SkCanvas* canvas) override {
-        sk_sp<GrContext> context(GrContext::CreateMockContext());
+        sk_sp<GrContext> context(GrContext::Create(kMock_GrBackend, (GrBackendContext) nullptr));
         if (nullptr == context) {
             return;
         }
@@ -115,7 +115,7 @@ protected:
     }
 
     void onDelayedSetup() override {
-        fContext.reset(GrContext::CreateMockContext());
+        fContext.reset(GrContext::Create(kMock_GrBackend, (GrBackendContext) nullptr));
         if (!fContext) {
             return;
         }
diff --git a/gn/gpu.gni b/gn/gpu.gni
index 67e516a586..e4ffe2f75f 100644
--- a/gn/gpu.gni
+++ b/gn/gpu.gni
@@ -458,6 +458,9 @@ skia_gpu_sources = [
   "$_src/gpu/glsl/GrGLSLXferProcessor.cpp",
   "$_src/gpu/glsl/GrGLSLXferProcessor.h",
 
+  # Mock
+  "$_src/gpu/mock/GrMockGpu.h",
+
   # Sk files
   "$_src/gpu/SkGpuDevice.cpp",
   "$_src/gpu/SkGpuDevice.h",
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index d107fc6fd6..64c1746078 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -52,11 +52,6 @@ public:
     static GrContext* Create(GrBackend, GrBackendContext, const GrContextOptions& options);
     static GrContext* Create(GrBackend, GrBackendContext);
 
-    /**
-     * Only defined in test apps.
-     */
-    static GrContext* CreateMockContext();
-
     virtual ~GrContext();
 
     sk_sp<GrContextThreadSafeProxy> threadSafeProxy();
@@ -334,9 +329,6 @@ private:
     GrContext(); // init must be called after the constructor.
     bool init(GrBackend, GrBackendContext, const GrContextOptions& options);
 
-    void initMockContext();
-    void initCommon(const GrContextOptions&);
-
     /**
      * These functions create premul <-> unpremul effects. If the second argument is 'true', they
      * use the specialized round-trip effects from GrConfigConversionEffect, otherwise they
diff --git a/include/gpu/GrTypes.h b/include/gpu/GrTypes.h
index 60cccdfd69..a14a8eade1 100644
--- a/include/gpu/GrTypes.h
+++ b/include/gpu/GrTypes.h
@@ -187,6 +187,7 @@ static inline size_t GrSizeAlignDown(size_t x, uint32_t alignment) {
 enum GrBackend {
     kOpenGL_GrBackend,
     kVulkan_GrBackend,
+    kMock_GrBackend,
 
     kLast_GrBackend = kVulkan_GrBackend
 };
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index b0d40f6668..405668d4c4 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -53,14 +53,12 @@ GrContext* GrContext::Create(GrBackend backend, GrBackendContext backendContext)
 
 GrContext* GrContext::Create(GrBackend backend, GrBackendContext backendContext,
                              const GrContextOptions& options) {
-    GrContext* context = new GrContext;
+    sk_sp<GrContext> context(new GrContext);
 
-    if (context->init(backend, backendContext, options)) {
-        return context;
-    } else {
-        context->unref();
+    if (!context->init(backend, backendContext, options)) {
         return nullptr;
     }
+    return context.release();
 }
 
 static int32_t gNextID = 1;
@@ -91,12 +89,6 @@ bool GrContext::init(GrBackend backend, GrBackendContext backendContext,
     if (!fGpu) {
         return false;
     }
-    this->initCommon(options);
-    return true;
-}
-
-void GrContext::initCommon(const GrContextOptions& options) {
-    ASSERT_SINGLE_OWNER
 
     fCaps = SkRef(fGpu->caps());
     fResourceCache = new GrResourceCache(fCaps, fUniqueID);
@@ -113,6 +105,8 @@ void GrContext::initCommon(const GrContextOptions& options) {
     fAtlasGlyphCache = new GrAtlasGlyphCache(this, options.fGlyphCacheTextureMaximumBytes);
 
     fTextBlobCache.reset(new GrTextBlobCache(TextBlobCacheOverBudgetCB, this));
+
+    return true;
 }
 
 GrContext::~GrContext() {
diff --git a/src/gpu/GrGpuFactory.cpp b/src/gpu/GrGpuFactory.cpp
index c6134b65a2..1fc19c144a 100644
--- a/src/gpu/GrGpuFactory.cpp
+++ b/src/gpu/GrGpuFactory.cpp
@@ -7,31 +7,26 @@
 
 
 #include "GrGpuFactory.h"
-
-#include "GrGpu.h"
-#include "gl/GrGLConfig.h"
 #include "gl/GrGLGpu.h"
+#include "mock/GrMockGpu.h"
 #ifdef SK_VULKAN
 #include "vk/GrVkGpu.h"
 #endif
 
-static CreateGpuProc gGpuFactories[kBackendCount] = { GrGLGpu::Create, nullptr };
-
-#ifdef SK_VULKAN
-GrGpuFactoryRegistrar gVkGpuFactoryProc(kVulkan_GrBackend, GrVkGpu::Create);
-#endif
-
-GrGpuFactoryRegistrar::GrGpuFactoryRegistrar(int i, CreateGpuProc proc) {
-    gGpuFactories[i] = proc;
-}
-
 GrGpu* GrGpu::Create(GrBackend backend,
                      GrBackendContext backendContext,
                      const GrContextOptions& options,
                      GrContext* context) {
-    SkASSERT((int)backend < kBackendCount);
-    if (!gGpuFactories[backend]) {
-        return nullptr;
+    switch (backend) {
+        case kOpenGL_GrBackend:
+            return GrGLGpu::Create(backendContext, options, context);
+#ifdef SK_VULKAN
+        case kVulkan_GrBackend:
+            return GrVkGpu::Create(backendContext, options, context);
+#endif
+        case kMock_GrBackend:
+            return GrMockGpu::Create(backendContext, options, context);
+        default:
+            return nullptr;
     }
-    return (gGpuFactories[backend])(backendContext, options, context);
 }
diff --git a/src/gpu/mock/GrMockGpu.h b/src/gpu/mock/GrMockGpu.h
new file mode 100644
index 0000000000..eb0a74a7f3
--- /dev/null
+++ b/src/gpu/mock/GrMockGpu.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "GrGpu.h"
+#include "GrSemaphore.h"
+
+class GrPipeline;
+
+class GrMockCaps : public GrCaps {
+public:
+    explicit GrMockCaps(const GrContextOptions& options) : INHERITED(options) {
+        fBufferMapThreshold = SK_MaxS32;
+    }
+    bool isConfigTexturable(GrPixelConfig) const override { return false; }
+    bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override { return false; }
+    bool canConfigBeImageStorage(GrPixelConfig) const override { return false; }
+    bool initDescForDstCopy(const GrRenderTargetProxy* src, GrSurfaceDesc* desc,
+                            bool* rectsMustMatch, bool* disallowSubrect) const override {
+        return false;
+    }
+
+private:
+    typedef GrCaps INHERITED;
+};
+
+class GrMockGpu : public GrGpu {
+public:
+    static GrGpu* Create(GrBackendContext backendContext, const GrContextOptions& options,
+                         GrContext* context) {
+        SkASSERT((void*)backendContext == nullptr);
+        return new GrMockGpu(context, options);
+    }
+
+    ~GrMockGpu() override {}
+
+    bool onGetReadPixelsInfo(GrSurface* srcSurface, int readWidth, int readHeight, size_t rowBytes,
+                             GrPixelConfig readConfig, DrawPreference*,
+                             ReadPixelTempDrawInfo*) override { return false; }
+
+    bool onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height,
+                              GrPixelConfig srcConfig, DrawPreference*,
+                              WritePixelTempDrawInfo*) override { return false; }
+
+    bool onCopySurface(GrSurface* dst,
+                       GrSurface* src,
+                       const SkIRect& srcRect,
+                       const SkIPoint& dstPoint) override { return false; }
+
+    void onQueryMultisampleSpecs(GrRenderTarget* rt, const GrStencilSettings&,
+                                 int* effectiveSampleCnt, SamplePattern*) override {
+        *effectiveSampleCnt = rt->numStencilSamples();
+    }
+
+    GrGpuCommandBuffer* createCommandBuffer(const GrGpuCommandBuffer::LoadAndStoreInfo&,
+                                            const GrGpuCommandBuffer::LoadAndStoreInfo&) override {
+        return nullptr;
+    }
+
+    GrFence SK_WARN_UNUSED_RESULT insertFence() override { return 0; }
+    bool waitFence(GrFence, uint64_t) override { return true; }
+    void deleteFence(GrFence) const override {}
+
+    sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT makeSemaphore(bool isOwned) override {
+        return nullptr;
+    }
+    sk_sp<GrSemaphore> wrapBackendSemaphore(const GrBackendSemaphore& semaphore,
+                                            GrWrapOwnership ownership) override { return nullptr; }
+    void insertSemaphore(sk_sp<GrSemaphore> semaphore, bool flush) override {}
+    void waitSemaphore(sk_sp<GrSemaphore> semaphore) override {}
+    sk_sp<GrSemaphore> prepareTextureForCrossContextUsage(GrTexture*) override { return nullptr; }
+
+private:
+    GrMockGpu(GrContext* context, const GrContextOptions& options) : INHERITED(context) {
+        fCaps.reset(new GrMockCaps(options));
+    }
+
+    void onResetContext(uint32_t resetBits) override {}
+
+    void xferBarrier(GrRenderTarget*, GrXferBarrierType) override {}
+
+    sk_sp<GrTexture> onCreateTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
+                                     const SkTArray<GrMipLevel>& texels) override {
+        return nullptr;
+    }
+
+    sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTexture&,
+                                          GrSurfaceOrigin,
+                                          GrBackendTextureFlags,
+                                          int sampleCnt,
+                                          GrWrapOwnership) override {
+        return nullptr;
+    }
+
+    sk_sp<GrRenderTarget> onWrapBackendRenderTarget(const GrBackendRenderTarget&,
+                                                    GrSurfaceOrigin) override {
+        return nullptr;
+    }
+
+    sk_sp<GrRenderTarget> onWrapBackendTextureAsRenderTarget(const GrBackendTexture&,
+                                                             GrSurfaceOrigin,
+                                                             int sampleCnt) override {
+        return nullptr;
+    }
+
+    GrBuffer* onCreateBuffer(size_t, GrBufferType, GrAccessPattern, const void*) override {
+        return nullptr;
+    }
+
+    gr_instanced::InstancedRendering* onCreateInstancedRendering() override { return nullptr; }
+
+    bool onReadPixels(GrSurface* surface,
+                      int left, int top, int width, int height,
+                      GrPixelConfig,
+                      void* buffer,
+                      size_t rowBytes) override {
+        return false;
+    }
+
+    bool onWritePixels(GrSurface* surface,
+                       int left, int top, int width, int height,
+                       GrPixelConfig config, const SkTArray<GrMipLevel>& texels) override {
+        return false;
+    }
+
+    bool onTransferPixels(GrTexture* texture,
+                          int left, int top, int width, int height,
+                          GrPixelConfig config, GrBuffer* transferBuffer,
+                          size_t offset, size_t rowBytes) override {
+        return false;
+    }
+
+    void onResolveRenderTarget(GrRenderTarget* target) override { return; }
+
+    GrStencilAttachment* createStencilAttachmentForRenderTarget(const GrRenderTarget*,
+                                                                int width,
+                                                                int height) override {
+        return nullptr;
+    }
+
+    void clearStencil(GrRenderTarget* target) override  {}
+
+    GrBackendObject createTestingOnlyBackendTexture(void* pixels, int w, int h,
+                                                    GrPixelConfig config, bool isRT) override {
+        return 0;
+    }
+    bool isTestingOnlyBackendTexture(GrBackendObject ) const override { return false; }
+    void deleteTestingOnlyBackendTexture(GrBackendObject, bool abandonTexture) override {}
+
+    typedef GrGpu INHERITED;
+};
diff --git a/tests/ResourceCacheTest.cpp b/tests/ResourceCacheTest.cpp
index 2429fbdf09..334298a444 100644
--- a/tests/ResourceCacheTest.cpp
+++ b/tests/ResourceCacheTest.cpp
@@ -359,7 +359,7 @@ int TestResource::fNumAlive = 0;
 class Mock {
 public:
     Mock(int maxCnt, size_t maxBytes) {
-        fContext.reset(GrContext::CreateMockContext());
+        fContext.reset(GrContext::Create(kMock_GrBackend, (GrBackendContext) nullptr));
         SkASSERT(fContext);
         fContext->setResourceCacheLimits(maxCnt, maxBytes);
         GrResourceCache* cache = fContext->getResourceCache();
diff --git a/tools/gpu/GrTest.cpp b/tools/gpu/GrTest.cpp
index 301ba6709b..6d55fd1379 100644
--- a/tools/gpu/GrTest.cpp
+++ b/tools/gpu/GrTest.cpp
@@ -289,167 +289,6 @@ GrRenderTargetFlags GrRenderTargetProxy::testingOnly_getFlags() const {
     return fRenderTargetFlags;
 }
 
-///////////////////////////////////////////////////////////////////////////////
-// Code for the mock context. It's built on a mock GrGpu class that does nothing.
-////
-
-#include "GrGpu.h"
-
-class GrPipeline;
-
-class MockCaps : public GrCaps {
-public:
-    explicit MockCaps(const GrContextOptions& options) : INHERITED(options) {}
-    bool isConfigTexturable(GrPixelConfig) const override { return false; }
-    bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override { return false; }
-    bool canConfigBeImageStorage(GrPixelConfig) const override { return false; }
-    bool initDescForDstCopy(const GrRenderTargetProxy* src, GrSurfaceDesc* desc,
-                            bool* rectsMustMatch, bool* disallowSubrect) const override {
-        return false;
-    }
-
-private:
-    typedef GrCaps INHERITED;
-};
-
-class MockGpu : public GrGpu {
-public:
-    MockGpu(GrContext* context, const GrContextOptions& options) : INHERITED(context) {
-        fCaps.reset(new MockCaps(options));
-    }
-    ~MockGpu() override {}
-
-    bool onGetReadPixelsInfo(GrSurface* srcSurface, int readWidth, int readHeight, size_t rowBytes,
-                             GrPixelConfig readConfig, DrawPreference*,
-                             ReadPixelTempDrawInfo*) override { return false; }
-
-    bool onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height,
-                              GrPixelConfig srcConfig, DrawPreference*,
-                              WritePixelTempDrawInfo*) override { return false; }
-
-    bool onCopySurface(GrSurface* dst,
-                       GrSurface* src,
-                       const SkIRect& srcRect,
-                       const SkIPoint& dstPoint) override { return false; }
-
-    void onQueryMultisampleSpecs(GrRenderTarget* rt, const GrStencilSettings&,
-                                 int* effectiveSampleCnt, SamplePattern*) override {
-        *effectiveSampleCnt = rt->numStencilSamples();
-    }
-
-    GrGpuCommandBuffer* createCommandBuffer(const GrGpuCommandBuffer::LoadAndStoreInfo&,
-                                            const GrGpuCommandBuffer::LoadAndStoreInfo&) override {
-        return nullptr;
-    }
-
-    GrFence SK_WARN_UNUSED_RESULT insertFence() override { return 0; }
-    bool waitFence(GrFence, uint64_t) override { return true; }
-    void deleteFence(GrFence) const override {}
-
-    sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT makeSemaphore(bool isOwned) override { return nullptr; }
-    sk_sp<GrSemaphore> wrapBackendSemaphore(const GrBackendSemaphore& semaphore,
-                                            GrWrapOwnership ownership) override { return nullptr; }
-    void insertSemaphore(sk_sp<GrSemaphore> semaphore, bool flush) override {}
-    void waitSemaphore(sk_sp<GrSemaphore> semaphore) override {}
-    sk_sp<GrSemaphore> prepareTextureForCrossContextUsage(GrTexture*) override { return nullptr; }
-
-private:
-    void onResetContext(uint32_t resetBits) override {}
-
-    void xferBarrier(GrRenderTarget*, GrXferBarrierType) override {}
-
-    sk_sp<GrTexture> onCreateTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
-                                     const SkTArray<GrMipLevel>& texels) override {
-        return nullptr;
-    }
-
-    sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTexture&,
-                                          GrSurfaceOrigin,
-                                          GrBackendTextureFlags,
-                                          int sampleCnt,
-                                          GrWrapOwnership) override {
-        return nullptr;
-    }
-
-    sk_sp<GrRenderTarget> onWrapBackendRenderTarget(const GrBackendRenderTarget&,
-                                                    GrSurfaceOrigin) override {
-        return nullptr;
-    }
-
-    sk_sp<GrRenderTarget> onWrapBackendTextureAsRenderTarget(const GrBackendTexture&,
-                                                             GrSurfaceOrigin,
-                                                             int sampleCnt) override {
-        return nullptr;
-    }
-
-    GrBuffer* onCreateBuffer(size_t, GrBufferType, GrAccessPattern, const void*) override {
-        return nullptr;
-    }
-
-    gr_instanced::InstancedRendering* onCreateInstancedRendering() override { return nullptr; }
-
-    bool onReadPixels(GrSurface* surface,
-                      int left, int top, int width, int height,
-                      GrPixelConfig,
-                      void* buffer,
-                      size_t rowBytes) override {
-        return false;
-    }
-
-    bool onWritePixels(GrSurface* surface,
-                       int left, int top, int width, int height,
-                       GrPixelConfig config, const SkTArray<GrMipLevel>& texels) override {
-        return false;
-    }
-
-    bool onTransferPixels(GrTexture* texture,
-                          int left, int top, int width, int height,
-                          GrPixelConfig config, GrBuffer* transferBuffer,
-                          size_t offset, size_t rowBytes) override {
-        return false;
-    }
-
-    void onResolveRenderTarget(GrRenderTarget* target) override { return; }
-
-    GrStencilAttachment* createStencilAttachmentForRenderTarget(const GrRenderTarget*,
-                                                                int width,
-                                                                int height) override {
-        return nullptr;
-    }
-
-    void clearStencil(GrRenderTarget* target) override  {}
-
-    GrBackendObject createTestingOnlyBackendTexture(void* pixels, int w, int h,
-                                                    GrPixelConfig config, bool isRT) override {
-        return 0;
-    }
-    bool isTestingOnlyBackendTexture(GrBackendObject ) const override { return false; }
-    void deleteTestingOnlyBackendTexture(GrBackendObject, bool abandonTexture) override {}
-
-    typedef GrGpu INHERITED;
-};
-
-GrContext* GrContext::CreateMockContext() {
-    GrContext* context = new GrContext;
-
-    context->initMockContext();
-    return context;
-}
-
-void GrContext::initMockContext() {
-    GrContextOptions options;
-    options.fBufferMapThreshold = 0;
-    SkASSERT(nullptr == fGpu);
-    fGpu = new MockGpu(this, options);
-    SkASSERT(fGpu);
-    this->initCommon(options);
-
-    // We delete these because we want to test the cache starting with zero resources. Also, none of
-    // these objects are required for any of tests that use this context. TODO: make stop allocating
-    // resources in the buffer pools.
-    fDrawingManager->abandon();
-}
-
 //////////////////////////////////////////////////////////////////////////////
 
 void GrContextPriv::testingOnly_flushAndRemoveOnFlushCallbackObject(GrOnFlushCallbackObject* cb) {