1 files changed, 110 insertions, 0 deletions
diff --git a/dom/canvas/PWebGL.ipdl b/dom/canvas/PWebGL.ipdl
new file mode 100644
index 0000000000..99a1e242bf
--- /dev/null
+++ b/dom/canvas/PWebGL.ipdl
@@ -0,0 +1,110 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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/. */
+
+include protocol PCanvasManager;
+include "mozilla/layers/LayersMessageUtils.h";
+
+[MoveOnly] using class mozilla::ipc::BigBuffer from "mozilla/ipc/BigBuffer.h";
+using mozilla::layers::SurfaceDescriptor from "mozilla/layers/LayersTypes.h";
+using std::string from "string";
+using mozilla::uvec2 from "mozilla/dom/WebGLIpdl.h";
+using mozilla::uvec3 from "mozilla/dom/WebGLIpdl.h";
+using mozilla::void_t from "mozilla/ipc/IPCCore.h";
+using mozilla::webgl::CompileResult from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::ContextLossReason from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::FrontBufferSnapshotIpc from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::GetUniformData from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::InitContextDesc from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::InitContextResult from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::Int32Vector from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::LinkResult from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::OpaqueFramebufferOptions from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::PackingInfo from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::ReadPixelsDesc from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::ReadPixelsResultIpc from "mozilla/dom/WebGLIpdl.h";
+using mozilla::webgl::ShaderPrecisionFormat from "mozilla/dom/WebGLIpdl.h";
+[MoveOnly] using mozilla::webgl::TexUnpackBlobDesc from "mozilla/dom/WebGLIpdl.h";
+
+namespace mozilla {
+namespace dom {
+
+union ReadPixelsBuffer {
+  // The buffer needs to be allocated, and the value specifies the maximum size.
+  uint64_t;
+  // The buffer is a pre-allocated Shmem.
+  Shmem;
+};
+
+/**
+ * Represents the connection between a WebGLChild actor that issues WebGL
+ * command from the content process, and a WebGLParent in the compositor
+ * process that runs the commands.
+ */
+sync protocol PWebGL
+{
+  manager PCanvasManager;
+
+parent:
+  sync Initialize(InitContextDesc desc)
+    returns (InitContextResult res);
+
+  async __delete__();
+
+  // -
+
+  async DispatchCommands(BigBuffer commands, uint64_t size);
+  async Ping() returns (void_t ok);
+  async TexImage(uint32_t level, uint32_t respecFormat, uvec3 offset,
+                 PackingInfo pi, TexUnpackBlobDesc src);
+
+  // -
+
+  sync GetBufferSubData(uint32_t target, uint64_t srcByteOffset, uint64_t byteSize) returns (Shmem ret);
+  sync GetFrontBufferSnapshot() returns (FrontBufferSnapshotIpc ret);
+  sync ReadPixels(ReadPixelsDesc desc, ReadPixelsBuffer buffer) returns (ReadPixelsResultIpc ret);
+
+  // -
+
+  sync CheckFramebufferStatus(uint32_t target) returns (uint32_t ret);
+  sync ClientWaitSync(uint64_t id, uint32_t flags, uint64_t timeout) returns (uint32_t ret);
+  sync CreateOpaqueFramebuffer(uint64_t id, OpaqueFramebufferOptions options) returns (bool ret);
+  sync DrawingBufferSize() returns (uvec2 ret);
+  sync Finish();
+  sync GetBufferParameter(uint32_t target, uint32_t pname) returns (double? ret);
+  sync GetCompileResult(uint64_t id) returns (CompileResult ret);
+  sync GetError() returns (uint32_t ret);
+  sync GetFragDataLocation(uint64_t id, string name) returns (int32_t ret);
+  sync GetFramebufferAttachmentParameter(uint64_t id,
+                                                  uint32_t attachment,
+                                                  uint32_t pname) returns (double? ret);
+  sync GetFrontBuffer(uint64_t fb, bool vr) returns (SurfaceDescriptor? ret);
+  sync GetIndexedParameter(uint32_t target, uint32_t index) returns (double? ret);
+  sync GetInternalformatParameter(uint32_t target, uint32_t internalFormat, uint32_t pname) returns (Int32Vector? ret);
+  sync GetLinkResult(uint64_t id) returns (LinkResult ret);
+  sync GetNumber(uint32_t pname) returns (double? ret);
+  sync GetQueryParameter(uint64_t id, uint32_t pname) returns (double? ret);
+  sync GetRenderbufferParameter(uint64_t id, uint32_t pname) returns (double? ret);
+  sync GetSamplerParameter(uint64_t id, uint32_t pname) returns (double? ret);
+  sync GetShaderPrecisionFormat(
+      uint32_t shaderType, uint32_t precisionType) returns (ShaderPrecisionFormat? ret);
+  sync GetString(uint32_t pname) returns (string? ret);
+  sync GetTexParameter(uint64_t id, uint32_t pname) returns (double? ret);
+  sync GetUniform(uint64_t id, uint32_t loc) returns (GetUniformData ret);
+  sync GetVertexAttrib(uint32_t index, uint32_t pname) returns (double? ret);
+  sync IsEnabled(uint32_t cap) returns (bool ret);
+  sync OnMemoryPressure();
+  sync ValidateProgram(uint64_t id) returns (bool ret);
+
+child:
+  async JsWarning(string text);
+
+  // Tell client that this queue needs to be shut down
+  async OnContextLoss(ContextLossReason aReason);
+};
+
+} // dom
+} // mozilla