1 files changed, 134 insertions, 0 deletions
diff --git a/dom/canvas/WebGLParent.h b/dom/canvas/WebGLParent.h
new file mode 100644
index 0000000000..4cdc03e0ec
--- /dev/null
+++ b/dom/canvas/WebGLParent.h
@@ -0,0 +1,134 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef WEBGLPARENT_H_
+#define WEBGLPARENT_H_
+
+#include "mozilla/GfxMessageUtils.h"
+#include "mozilla/dom/ipc/IdType.h"
+#include "mozilla/dom/PWebGLParent.h"
+#include "mozilla/WeakPtr.h"
+
+namespace mozilla {
+
+class HostWebGLContext;
+class WebGLChild;
+
+namespace layers {
+class SharedSurfaceTextureClient;
+class SurfaceDescriptor;
+}  // namespace layers
+
+namespace dom {
+
+class WebGLParent : public PWebGLParent, public SupportsWeakPtr {
+  friend PWebGLParent;
+
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(WebGLParent, override);
+
+  mozilla::ipc::IPCResult RecvInitialize(const webgl::InitContextDesc&,
+                                         webgl::InitContextResult* out);
+
+  explicit WebGLParent(const dom::ContentParentId& aContentId);  // For IPDL
+
+  using IPCResult = mozilla::ipc::IPCResult;
+
+  template <class ResolveT>
+  IPCResult RecvPing(const ResolveT& Resolve) {
+    Resolve(void_t{});
+    return IPC_OK();
+  }
+
+  IPCResult RecvSyncPing() { return IPC_OK(); }
+
+  IPCResult RecvDispatchCommands(mozilla::ipc::BigBuffer&&, uint64_t);
+  IPCResult RecvTexImage(uint32_t level, uint32_t respecFormat,
+                         const uvec3& offset, const webgl::PackingInfo&,
+                         webgl::TexUnpackBlobDesc&&);
+
+  IPCResult RecvGetBufferSubData(GLenum target, uint64_t srcByteOffset,
+                                 uint64_t byteSize, mozilla::ipc::Shmem* ret);
+  IPCResult GetFrontBufferSnapshot(webgl::FrontBufferSnapshotIpc* ret,
+                                   IProtocol* aProtocol);
+  IPCResult RecvGetFrontBufferSnapshot(webgl::FrontBufferSnapshotIpc* ret);
+  IPCResult RecvReadPixels(const webgl::ReadPixelsDesc&,
+                           ReadPixelsBuffer&& buffer,
+                           webgl::ReadPixelsResultIpc* ret);
+
+  // -
+
+  using ObjectId = webgl::ObjectId;
+
+  IPCResult RecvCheckFramebufferStatus(GLenum target, GLenum* ret);
+  IPCResult RecvClientWaitSync(ObjectId id, GLbitfield flags, GLuint64 timeout,
+                               GLenum* ret);
+  IPCResult RecvCreateOpaqueFramebuffer(ObjectId id,
+                                        const OpaqueFramebufferOptions&,
+                                        bool* ret);
+  IPCResult RecvDrawingBufferSize(uvec2* ret);
+  IPCResult RecvFinish();
+  IPCResult RecvGetBufferParameter(GLenum target, GLenum pname,
+                                   Maybe<double>* ret);
+  IPCResult RecvGetCompileResult(ObjectId id, webgl::CompileResult* ret);
+  IPCResult RecvGetError(GLenum* ret);
+  IPCResult RecvGetFragDataLocation(ObjectId id, const std::string& name,
+                                    GLint* ret);
+  IPCResult RecvGetFramebufferAttachmentParameter(ObjectId id,
+                                                  GLenum attachment,
+                                                  GLenum pname,
+                                                  Maybe<double>* ret);
+  IPCResult RecvGetFrontBuffer(ObjectId fb, bool vr,
+                               Maybe<layers::SurfaceDescriptor>* ret);
+  IPCResult RecvGetIndexedParameter(GLenum target, GLuint index,
+                                    Maybe<double>* ret);
+  IPCResult RecvGetInternalformatParameter(GLenum target, GLuint format,
+                                           GLuint pname,
+                                           Maybe<std::vector<int32_t>>* ret);
+  IPCResult RecvGetLinkResult(ObjectId id, webgl::LinkResult* ret);
+  IPCResult RecvGetNumber(GLenum pname, Maybe<double>* ret);
+  IPCResult RecvGetQueryParameter(ObjectId id, GLenum pname,
+                                  Maybe<double>* ret);
+  IPCResult RecvGetRenderbufferParameter(ObjectId id, GLenum pname,
+                                         Maybe<double>* ret);
+  IPCResult RecvGetSamplerParameter(ObjectId id, GLenum pname,
+                                    Maybe<double>* ret);
+  IPCResult RecvGetShaderPrecisionFormat(
+      GLenum shaderType, GLenum precisionType,
+      Maybe<webgl::ShaderPrecisionFormat>* ret);
+  IPCResult RecvGetString(GLenum pname, Maybe<std::string>* ret);
+  IPCResult RecvGetTexParameter(ObjectId id, GLenum pname, Maybe<double>* ret);
+  IPCResult RecvGetUniform(ObjectId id, uint32_t loc,
+                           webgl::GetUniformData* ret);
+  IPCResult RecvGetVertexAttrib(GLuint index, GLenum pname, Maybe<double>* ret);
+  IPCResult RecvIsEnabled(GLenum cap, bool* ret);
+  IPCResult RecvOnMemoryPressure();
+  IPCResult RecvValidateProgram(ObjectId id, bool* ret);
+
+  // -
+
+  const dom::ContentParentId mContentId;
+
+ private:
+  ~WebGLParent();
+
+  mozilla::ipc::IPCResult Recv__delete__() override;
+
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+
+  mozilla::ipc::IPCResult RecvWaitForTxn(layers::RemoteTextureOwnerId aOwnerId,
+                                         layers::RemoteTextureTxnType aTxnType,
+                                         layers::RemoteTextureTxnId aTxnId);
+
+  UniquePtr<HostWebGLContext> mHost;
+
+  // Runnable that repeatedly processes our WebGL command queue
+  RefPtr<Runnable> mRunCommandsRunnable;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // WEBGLPARENT_H_