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- /*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef GrContextFactory_DEFINED
- #define GrContextFactory_DEFINED
- #include "include/gpu/GrContext.h"
- #include "include/gpu/GrContextOptions.h"
- #include "include/private/SkTArray.h"
- #include "tools/gpu/gl/GLTestContext.h"
- struct GrVkBackendContext;
- namespace sk_gpu_test {
- class ContextInfo;
- /**
- * This is a simple class that is useful in test apps that use different
- * GrContexts backed by different types of GL contexts. It manages creating the
- * GL context and a GrContext that uses it. The GL/Gr contexts persist until the
- * factory is destroyed (though the caller can always grab a ref on the returned
- * Gr and GL contexts to make them outlive the factory).
- */
- class GrContextFactory : SkNoncopyable {
- public:
- // The availability of context types is subject to platform and build configuration
- // restrictions.
- enum ContextType {
- kGL_ContextType, //! OpenGL context.
- kGLES_ContextType, //! OpenGL ES context.
- kANGLE_D3D9_ES2_ContextType, //! ANGLE on Direct3D9 OpenGL ES 2 context.
- kANGLE_D3D11_ES2_ContextType,//! ANGLE on Direct3D11 OpenGL ES 2 context.
- kANGLE_D3D11_ES3_ContextType,//! ANGLE on Direct3D11 OpenGL ES 3 context.
- kANGLE_GL_ES2_ContextType, //! ANGLE on OpenGL OpenGL ES 2 context.
- kANGLE_GL_ES3_ContextType, //! ANGLE on OpenGL OpenGL ES 3 context.
- kCommandBuffer_ContextType, //! Chromium command buffer OpenGL ES context.
- kVulkan_ContextType, //! Vulkan
- kMetal_ContextType, //! Metal
- kDawn_ContextType, //! Dawn
- kMock_ContextType, //! Mock context that does not draw.
- kLastContextType = kMock_ContextType
- };
- static const int kContextTypeCnt = kLastContextType + 1;
- /**
- * Overrides for the initial GrContextOptions provided at construction time, and required
- * features that will cause context creation to fail if not present.
- */
- enum class ContextOverrides {
- kNone = 0x0,
- kAvoidStencilBuffers = 0x1,
- };
- static bool IsRenderingContext(ContextType type) {
- switch (type) {
- case kMock_ContextType:
- return false;
- default:
- return true;
- }
- }
- static GrBackendApi ContextTypeBackend(ContextType type) {
- switch (type) {
- case kVulkan_ContextType:
- return GrBackendApi::kVulkan;
- case kMetal_ContextType:
- return GrBackendApi::kMetal;
- case kDawn_ContextType:
- return GrBackendApi::kDawn;
- case kMock_ContextType:
- return GrBackendApi::kMock;
- default:
- return GrBackendApi::kOpenGL;
- }
- }
- static const char* ContextTypeName(ContextType contextType) {
- switch (contextType) {
- case kGL_ContextType:
- return "OpenGL";
- case kGLES_ContextType:
- return "OpenGLES";
- case kANGLE_D3D9_ES2_ContextType:
- return "ANGLE D3D9 ES2";
- case kANGLE_D3D11_ES2_ContextType:
- return "ANGLE D3D11 ES2";
- case kANGLE_D3D11_ES3_ContextType:
- return "ANGLE D3D11 ES3";
- case kANGLE_GL_ES2_ContextType:
- return "ANGLE GL ES2";
- case kANGLE_GL_ES3_ContextType:
- return "ANGLE GL ES3";
- case kCommandBuffer_ContextType:
- return "Command Buffer";
- case kVulkan_ContextType:
- return "Vulkan";
- case kMetal_ContextType:
- return "Metal";
- case kDawn_ContextType:
- return "Dawn";
- case kMock_ContextType:
- return "Mock";
- }
- SK_ABORT("Unreachable");
- return "Unknown";
- }
- explicit GrContextFactory(const GrContextOptions& opts);
- GrContextFactory();
- ~GrContextFactory();
- void destroyContexts();
- void abandonContexts();
- void releaseResourcesAndAbandonContexts();
- /**
- * Get a context initialized with a type of GL context. It also makes the GL context current.
- */
- ContextInfo getContextInfo(ContextType type, ContextOverrides = ContextOverrides::kNone);
- /**
- * Get a context in the same share group as the passed in GrContext, with the same type and
- * overrides. To get multiple contexts in a single share group, pass the same shareContext,
- * with different values for shareIndex.
- */
- ContextInfo getSharedContextInfo(GrContext* shareContext, uint32_t shareIndex = 0);
- /**
- * Get a GrContext initialized with a type of GL context. It also makes the GL context current.
- */
- GrContext* get(ContextType type, ContextOverrides overrides = ContextOverrides::kNone);
- const GrContextOptions& getGlobalOptions() const { return fGlobalOptions; }
- private:
- ContextInfo getContextInfoInternal(ContextType type, ContextOverrides overrides,
- GrContext* shareContext, uint32_t shareIndex);
- struct Context {
- ContextType fType;
- ContextOverrides fOverrides;
- GrContextOptions fOptions;
- GrBackendApi fBackend;
- TestContext* fTestContext;
- GrContext* fGrContext;
- GrContext* fShareContext;
- uint32_t fShareIndex;
- bool fAbandoned;
- };
- SkTArray<Context, true> fContexts;
- std::unique_ptr<GLTestContext> fSentinelGLContext;
- const GrContextOptions fGlobalOptions;
- };
- class ContextInfo {
- public:
- ContextInfo() = default;
- ContextInfo& operator=(const ContextInfo&) = default;
- GrContextFactory::ContextType type() const { return fType; }
- GrBackendApi backend() const { return GrContextFactory::ContextTypeBackend(fType); }
- GrContext* grContext() const { return fGrContext; }
- TestContext* testContext() const { return fTestContext; }
- GLTestContext* glContext() const {
- SkASSERT(GrBackendApi::kOpenGL == this->backend());
- return static_cast<GLTestContext*>(fTestContext);
- }
- const GrContextOptions& options() const { return fOptions; }
- private:
- ContextInfo(GrContextFactory::ContextType type, TestContext* testContext, GrContext* grContext,
- const GrContextOptions& options)
- : fType(type), fTestContext(testContext), fGrContext(grContext), fOptions(options) {}
- GrContextFactory::ContextType fType = GrContextFactory::kGL_ContextType;
- // Valid until the factory destroys it via abandonContexts() or destroyContexts().
- TestContext* fTestContext = nullptr;
- GrContext* fGrContext = nullptr;
- GrContextOptions fOptions;
- friend class GrContextFactory;
- };
- } // namespace sk_gpu_test
- GR_MAKE_BITFIELD_CLASS_OPS(sk_gpu_test::GrContextFactory::ContextOverrides);
- #endif
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