WebGLParent.h - mozsearch

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/* -*- 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 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_