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Unified Diff: webkit/gpu/grcontext_for_webgraphicscontext3d.cc

Issue 12212007: cc: Route offscreen context creation for compositor to the browser. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix typo Created 7 years, 10 months ago
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Index: webkit/gpu/grcontext_for_webgraphicscontext3d.cc
diff --git a/webkit/gpu/grcontext_for_webgraphicscontext3d.cc b/webkit/gpu/grcontext_for_webgraphicscontext3d.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a1d3abd56da2a154e555b485e2e0f36d0680bbf6
--- /dev/null
+++ b/webkit/gpu/grcontext_for_webgraphicscontext3d.cc
@@ -0,0 +1,70 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "webkit/gpu/grcontext_for_webgraphicscontext3d.h"
+
+#include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
+#include "third_party/skia/include/gpu/GrContext.h"
+#include "third_party/skia/include/gpu/gl/GrGLInterface.h"
+
+namespace webkit {
+namespace gpu {
+
+static void BindWebGraphicsContext3DGLContextCallback(
+ const GrGLInterface* interface) {
+ reinterpret_cast<WebKit::WebGraphicsContext3D*>(
+ interface->fCallbackData)->makeContextCurrent();
+}
+
+GrContextForWebGraphicsContext3D::GrContextForWebGraphicsContext3D(
+ WebKit::WebGraphicsContext3D* context3d) {
+ if (!context3d)
+ return;
+
+ skia::RefPtr<GrGLInterface> interface = skia::AdoptRef(
+ context3d->createGrGLInterface());
+ if (!interface)
+ return;
+
+ interface->fCallback = BindWebGraphicsContext3DGLContextCallback;
+ interface->fCallbackData =
+ reinterpret_cast<GrGLInterfaceCallbackData>(context3d);
+
+ gr_context_ = skia::AdoptRef(GrContext::Create(
+ kOpenGL_GrBackend,
+ reinterpret_cast<GrBackendContext>(interface.get())));
+ if (!gr_context_)
+ return;
+
+ bool nonzero_allocation = true;
+ SetMemoryLimit(nonzero_allocation);
+}
+
+GrContextForWebGraphicsContext3D::~GrContextForWebGraphicsContext3D() {
+ if (gr_context_)
+ gr_context_->contextDestroyed();
+}
+
+void GrContextForWebGraphicsContext3D::SetMemoryLimit(bool nonzero_allocation) {
+ if (!gr_context_)
+ return;
+
+ if (nonzero_allocation) {
+ // The limit of the number of textures we hold in the GrContext's
+ // bitmap->texture cache.
+ static const int kMaxGaneshTextureCacheCount = 2048;
+ // The limit of the bytes allocated toward textures in the GrContext's
+ // bitmap->texture cache.
+ static const size_t kMaxGaneshTextureCacheBytes = 96 * 1024 * 1024;
+
+ gr_context_->setTextureCacheLimits(
+ kMaxGaneshTextureCacheCount, kMaxGaneshTextureCacheBytes);
+ } else {
+ gr_context_->freeGpuResources();
+ gr_context_->setTextureCacheLimits(0, 0);
+ }
+}
+
+} // namespace gpu
+} // namespace webkit

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