Cleanup GrContextFactory and make it's subclasses private
Review URL: https://codereview.chromium.org/723183002
diff --git a/src/gpu/GrContextFactory.cpp b/src/gpu/GrContextFactory.cpp
new file mode 100755
index 0000000..1a3864a
--- /dev/null
+++ b/src/gpu/GrContextFactory.cpp
@@ -0,0 +1,89 @@
+
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "GrContextFactory.h"
+
+#if SK_ANGLE
+ #include "gl/angle/SkANGLEGLContext.h"
+#endif
+#include "gl/debug/SkDebugGLContext.h"
+#if SK_MESA
+ #include "gl/mesa/SkMesaGLContext.h"
+#endif
+#include "gl/SkGLContext.h"
+#include "gl/SkNullGLContext.h"
+
+
+GrContext* GrContextFactory::get(GLContextType type, GrGLStandard forcedGpuAPI) {
+ for (int i = 0; i < fContexts.count(); ++i) {
+ if (forcedGpuAPI != kNone_GrGLStandard &&
+ forcedGpuAPI != fContexts[i].fGLContext->gl()->fStandard)
+ continue;
+
+ if (fContexts[i].fType == type) {
+ fContexts[i].fGLContext->makeCurrent();
+ return fContexts[i].fGrContext;
+ }
+ }
+ SkAutoTUnref<SkGLContext> glCtx;
+ SkAutoTUnref<GrContext> grCtx;
+ switch (type) {
+ case kNVPR_GLContextType: // fallthru
+ case kNative_GLContextType:
+ glCtx.reset(SkCreatePlatformGLContext(forcedGpuAPI));
+ break;
+#ifdef SK_ANGLE
+ case kANGLE_GLContextType:
+ glCtx.reset(SkANGLEGLContext::Create(forcedGpuAPI));
+ break;
+#endif
+#ifdef SK_MESA
+ case kMESA_GLContextType:
+ glCtx.reset(SkMesaGLContext::Create(forcedGpuAPI));
+ break;
+#endif
+ case kNull_GLContextType:
+ glCtx.reset(SkNullGLContext::Create(forcedGpuAPI));
+ break;
+ case kDebug_GLContextType:
+ glCtx.reset(SkDebugGLContext::Create(forcedGpuAPI));
+ break;
+ }
+ if (NULL == glCtx.get()) {
+ return NULL;
+ }
+
+ SkASSERT(glCtx->isValid());
+
+ // Ensure NVPR is available for the NVPR type and block it from other types.
+ SkAutoTUnref<const GrGLInterface> glInterface(SkRef(glCtx->gl()));
+ if (kNVPR_GLContextType == type) {
+ if (!glInterface->hasExtension("GL_NV_path_rendering")) {
+ return NULL;
+ }
+ } else {
+ glInterface.reset(GrGLInterfaceRemoveNVPR(glInterface));
+ if (!glInterface) {
+ return NULL;
+ }
+ }
+
+ glCtx->makeCurrent();
+ GrBackendContext p3dctx = reinterpret_cast<GrBackendContext>(glInterface.get());
+ grCtx.reset(GrContext::Create(kOpenGL_GrBackend, p3dctx, &fGlobalOptions));
+ if (!grCtx.get()) {
+ return NULL;
+ }
+ GPUContext& ctx = fContexts.push_back();
+ ctx.fGLContext = glCtx.get();
+ ctx.fGLContext->ref();
+ ctx.fGrContext = grCtx.get();
+ ctx.fGrContext->ref();
+ ctx.fType = type;
+ return ctx.fGrContext;
+}