1 files changed, 61 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/modules/webgl/webgl2_compute_rendering_context_base.h b/chromium/third_party/blink/renderer/modules/webgl/webgl2_compute_rendering_context_base.h
new file mode 100644
index 00000000000..3339f9cb79b
--- /dev/null
+++ b/chromium/third_party/blink/renderer/modules/webgl/webgl2_compute_rendering_context_base.h
@@ -0,0 +1,61 @@
+// Copyright 2018 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.
+
+#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGL_WEBGL2_COMPUTE_RENDERING_CONTEXT_BASE_H_
+#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGL_WEBGL2_COMPUTE_RENDERING_CONTEXT_BASE_H_
+
+#include "third_party/blink/renderer/modules/webgl/webgl2_rendering_context_base.h"
+#include "third_party/blink/renderer/modules/webgl/webgl_rendering_context_base.h"
+#include "third_party/blink/renderer/platform/bindings/trace_wrapper_member.h"
+
+namespace blink {
+
+class WebGLTexture;
+
+class WebGL2ComputeRenderingContextBase : public WebGL2RenderingContextBase {
+ public:
+  void DestroyContext() override;
+
+  /* Launch one or more compute work groups */
+  void dispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+
+  /* Bind a level of a texture to an image unit */
+  void bindImageTexture(GLuint unit,
+                        WebGLTexture* texture,
+                        GLint level,
+                        GLboolean layered,
+                        GLint layer,
+                        GLenum access,
+                        GLenum format);
+
+  /* Memory access synchronization */
+  void memoryBarrier(GLbitfield barriers);
+  void memoryBarrierByRegion(GLbitfield barriers);
+
+  /* WebGLRenderingContextBase overrides */
+  void InitializeNewContext() override;
+
+  void Trace(blink::Visitor*) override;
+
+ protected:
+  WebGL2ComputeRenderingContextBase(
+      CanvasRenderingContextHost*,
+      std::unique_ptr<WebGraphicsContext3DProvider>,
+      bool using_gpu_compositing,
+      const CanvasContextCreationAttributesCore& requested_attributes);
+};
+
+DEFINE_TYPE_CASTS(WebGL2ComputeRenderingContextBase,
+                  CanvasRenderingContext,
+                  context,
+                  context->Is3d() &&
+                      WebGLRenderingContextBase::GetWebGLVersion(context) ==
+                          Platform::kWebGL2ComputeContextType,
+                  context.Is3d() &&
+                      WebGLRenderingContextBase::GetWebGLVersion(&context) ==
+                          Platform::kWebGL2ComputeContextType);
+
+}  // namespace blink
+
+#endif