mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
243 lines
6.4 KiB
Plaintext
243 lines
6.4 KiB
Plaintext
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at:
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla Code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* The Mozilla Foundation
|
|
* Portions created by the Initial Developer are Copyright (C) 2010
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Chris Jones <jones.chris.g@gmail.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
include protocol PCompositor;
|
|
include protocol PLayer;
|
|
include protocol PRenderFrame;
|
|
|
|
include "gfxipc/ShadowLayerUtils.h";
|
|
|
|
using gfx3DMatrix;
|
|
using gfxRGBA;
|
|
using nsIntPoint;
|
|
using nsIntRect;
|
|
using nsIntRegion;
|
|
using nsIntSize;
|
|
using mozilla::GraphicsFilterType;
|
|
using mozilla::layers::FrameMetrics;
|
|
using mozilla::layers::SurfaceDescriptorX11;
|
|
using mozilla::null_t;
|
|
using mozilla::WindowsHandle;
|
|
|
|
/**
|
|
* The layers protocol is spoken between thread contexts that manage
|
|
* layer (sub)trees. The protocol comprises atomically publishing
|
|
* layer subtrees to a "shadow" thread context (which grafts the
|
|
* subtree into its own tree), and atomically updating a published
|
|
* subtree. ("Atomic" in this sense is wrt painting.)
|
|
*/
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
// Create a shadow layer for |layer|
|
|
struct OpCreateThebesLayer { PLayer layer; };
|
|
struct OpCreateContainerLayer { PLayer layer; };
|
|
struct OpCreateImageLayer { PLayer layer; };
|
|
struct OpCreateColorLayer { PLayer layer; };
|
|
struct OpCreateCanvasLayer { PLayer layer; };
|
|
|
|
struct SurfaceDescriptorD3D10 {
|
|
WindowsHandle handle;
|
|
};
|
|
|
|
union SurfaceDescriptor {
|
|
Shmem;
|
|
SurfaceDescriptorD3D10;
|
|
SurfaceDescriptorX11;
|
|
};
|
|
|
|
struct YUVImage {
|
|
Shmem Ydata;
|
|
Shmem Udata;
|
|
Shmem Vdata;
|
|
nsIntRect picture;
|
|
};
|
|
|
|
union SharedImage {
|
|
SurfaceDescriptor;
|
|
YUVImage;
|
|
null_t;
|
|
};
|
|
|
|
struct ThebesBuffer {
|
|
SurfaceDescriptor buffer;
|
|
nsIntRect rect;
|
|
nsIntPoint rotation;
|
|
};
|
|
union OptionalThebesBuffer { ThebesBuffer; null_t; };
|
|
|
|
union CanvasSurface {
|
|
SurfaceDescriptor;
|
|
null_t;
|
|
};
|
|
|
|
// Change a layer's attributes
|
|
struct CommonLayerAttributes {
|
|
nsIntRegion visibleRegion;
|
|
gfx3DMatrix transform;
|
|
PRUint32 contentFlags;
|
|
float opacity;
|
|
bool useClipRect;
|
|
nsIntRect clipRect;
|
|
bool isFixedPosition;
|
|
};
|
|
|
|
struct ThebesLayerAttributes {
|
|
nsIntRegion validRegion;
|
|
};
|
|
struct ContainerLayerAttributes{ FrameMetrics metrics; };
|
|
struct ColorLayerAttributes { gfxRGBA color; };
|
|
struct CanvasLayerAttributes { GraphicsFilterType filter; };
|
|
struct ImageLayerAttributes { GraphicsFilterType filter; };
|
|
|
|
union SpecificLayerAttributes {
|
|
null_t;
|
|
ThebesLayerAttributes;
|
|
ContainerLayerAttributes;
|
|
ColorLayerAttributes;
|
|
CanvasLayerAttributes;
|
|
ImageLayerAttributes;
|
|
};
|
|
|
|
struct LayerAttributes {
|
|
CommonLayerAttributes common;
|
|
SpecificLayerAttributes specific;
|
|
};
|
|
|
|
struct OpSetLayerAttributes {
|
|
PLayer layer;
|
|
LayerAttributes attrs;
|
|
};
|
|
|
|
|
|
// Monkey with the tree structure
|
|
struct OpSetRoot { PLayer root; };
|
|
struct OpInsertAfter { PLayer container; PLayer childLayer; PLayer after; };
|
|
struct OpAppendChild { PLayer container; PLayer childLayer; };
|
|
struct OpRemoveChild { PLayer container; PLayer childLayer; };
|
|
|
|
|
|
// Paint (buffer update)
|
|
struct OpPaintThebesBuffer {
|
|
PLayer layer;
|
|
ThebesBuffer newFrontBuffer;
|
|
nsIntRegion updatedRegion;
|
|
};
|
|
|
|
struct OpPaintCanvas {
|
|
PLayer layer;
|
|
CanvasSurface newFrontBuffer;
|
|
bool needYFlip;
|
|
};
|
|
|
|
struct OpPaintImage {
|
|
PLayer layer;
|
|
SharedImage newFrontBuffer;
|
|
};
|
|
|
|
|
|
// A unit of a changeset; a set of these comprise a changeset
|
|
union Edit {
|
|
OpCreateThebesLayer;
|
|
OpCreateContainerLayer;
|
|
OpCreateImageLayer;
|
|
OpCreateColorLayer;
|
|
OpCreateCanvasLayer;
|
|
|
|
OpSetLayerAttributes;
|
|
|
|
OpSetRoot;
|
|
OpInsertAfter;
|
|
OpAppendChild;
|
|
OpRemoveChild;
|
|
|
|
OpPaintThebesBuffer;
|
|
OpPaintCanvas;
|
|
OpPaintImage;
|
|
};
|
|
|
|
|
|
// Replies to operations
|
|
struct OpBufferSwap { PLayer layer; CanvasSurface newBackBuffer; };
|
|
|
|
struct OpImageSwap { PLayer layer; SharedImage newBackImage; };
|
|
|
|
struct OpThebesBufferSwap {
|
|
PLayer layer;
|
|
OptionalThebesBuffer newBackBuffer;
|
|
nsIntRegion newValidRegion;
|
|
// If the parent took the child's old back buffer and returned its
|
|
// old front buffer, |readOnlyFrontBuffer| may (if non-null) contain
|
|
// the child's old back buffer (parent's new front buffer). This
|
|
// buffer can be used to read back the newly updated region into the
|
|
// child's new back buffer. This buffer must be considered
|
|
// read-only, but sadly that's not enforced.
|
|
OptionalThebesBuffer readOnlyFrontBuffer;
|
|
nsIntRegion frontUpdatedRegion;
|
|
};
|
|
|
|
// Unit of a "changeset reply". This is a weird abstraction, probably
|
|
// only to be used for buffer swapping.
|
|
union EditReply {
|
|
OpBufferSwap;
|
|
OpThebesBufferSwap;
|
|
OpImageSwap;
|
|
};
|
|
|
|
|
|
sync protocol PLayers {
|
|
manager PRenderFrame or PCompositor;
|
|
manages PLayer;
|
|
|
|
parent:
|
|
async PLayer();
|
|
|
|
// The isFirstPaint flag can be used to indicate that this is the first update
|
|
// for a particular document.
|
|
sync Update(Edit[] cset, bool isFirstPaint)
|
|
returns (EditReply[] reply);
|
|
|
|
async __delete__();
|
|
};
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|