mirror of
https://github.com/classilla/tenfourfox.git
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292 lines
8.5 KiB
C++
292 lines
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_LAYERSTYPES_H
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#define GFX_LAYERSTYPES_H
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#include <stdint.h> // for uint32_t
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#ifdef MOZ_WIDGET_GONK
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#include <utils/RefBase.h>
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#if ANDROID_VERSION >= 21
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#include <utils/NativeHandle.h>
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#endif
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#endif
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#include "mozilla/gfx/Point.h" // for IntPoint
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#include "mozilla/TypedEnumBits.h"
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#include "nsRegion.h"
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#include <stdio.h> // FILE
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#include "mozilla/Logging.h" // for PR_LOG
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#ifndef MOZ_LAYERS_HAVE_LOG
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# define MOZ_LAYERS_HAVE_LOG
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#endif
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#define MOZ_LAYERS_LOG(_args) \
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MOZ_LOG(LayerManager::GetLog(), LogLevel::Debug, _args)
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#define MOZ_LAYERS_LOG_IF_SHADOWABLE(layer, _args) \
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do { if (layer->AsShadowableLayer()) { MOZ_LOG(LayerManager::GetLog(), LogLevel::Debug, _args); } } while (0)
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#define INVALID_OVERLAY -1
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namespace android {
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class MOZ_EXPORT GraphicBuffer;
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} // namespace android
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namespace mozilla {
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namespace layers {
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class TextureHost;
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#undef NONE
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#undef OPAQUE
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enum class LayersBackend : int8_t {
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LAYERS_NONE = 0,
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LAYERS_BASIC,
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LAYERS_OPENGL,
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LAYERS_D3D9,
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LAYERS_D3D11,
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LAYERS_CLIENT,
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LAYERS_LAST
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};
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enum class BufferMode : int8_t {
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BUFFER_NONE,
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BUFFERED
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};
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enum class DrawRegionClip : int8_t {
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DRAW,
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NONE
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};
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enum class SurfaceMode : int8_t {
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SURFACE_NONE = 0,
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SURFACE_OPAQUE,
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SURFACE_SINGLE_CHANNEL_ALPHA,
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SURFACE_COMPONENT_ALPHA
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};
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// LayerRenderState for Composer2D
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// We currently only support Composer2D using gralloc. If we want to be backed
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// by other surfaces we will need a more generic LayerRenderState.
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enum class LayerRenderStateFlags : int8_t {
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LAYER_RENDER_STATE_DEFAULT = 0,
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ORIGIN_BOTTOM_LEFT = 1 << 0,
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BUFFER_ROTATION = 1 << 1,
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// Notify Composer2D to swap the RB pixels of gralloc buffer
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FORMAT_RB_SWAP = 1 << 2,
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// We record opaqueness here alongside the actual surface we're going to
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// render. This avoids confusion when a layer might return different kinds
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// of surfaces over time (e.g. video frames).
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OPAQUE = 1 << 3
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};
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MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(LayerRenderStateFlags)
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// The 'ifdef MOZ_WIDGET_GONK' sadness here is because we don't want to include
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// android::sp unless we have to.
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struct LayerRenderState {
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// Constructors and destructor are defined in LayersTypes.cpp so we don't
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// have to pull in a definition for GraphicBuffer.h here. In KK at least,
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// that results in nasty pollution such as libui's hardware.h #defining
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// 'version_major' and 'version_minor' which conflict with Theora's codec.c...
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LayerRenderState();
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LayerRenderState(const LayerRenderState& aOther);
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~LayerRenderState();
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#ifdef MOZ_WIDGET_GONK
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LayerRenderState(android::GraphicBuffer* aSurface,
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const gfx::IntSize& aSize,
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LayerRenderStateFlags aFlags,
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TextureHost* aTexture);
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bool OriginBottomLeft() const
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{ return bool(mFlags & LayerRenderStateFlags::ORIGIN_BOTTOM_LEFT); }
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bool BufferRotated() const
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{ return bool(mFlags & LayerRenderStateFlags::BUFFER_ROTATION); }
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bool FormatRBSwapped() const
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{ return bool(mFlags & LayerRenderStateFlags::FORMAT_RB_SWAP); }
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void SetOverlayId(const int32_t& aId)
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{ mOverlayId = aId; }
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android::GraphicBuffer* GetGrallocBuffer() const
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{ return mSurface.get(); }
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#if ANDROID_VERSION >= 21
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android::NativeHandle* GetSidebandStream() const
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{ return mSidebandStream.get(); }
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#endif
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#endif
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void SetOffset(const nsIntPoint& aOffset)
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{
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mOffset = aOffset;
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mHasOwnOffset = true;
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}
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// see LayerRenderStateFlags
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LayerRenderStateFlags mFlags;
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// true if mOffset is applicable
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bool mHasOwnOffset;
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// the location of the layer's origin on mSurface
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nsIntPoint mOffset;
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// The 'ifdef MOZ_WIDGET_GONK' sadness here is because we don't want to include
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// android::sp unless we have to.
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#ifdef MOZ_WIDGET_GONK
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// surface to render
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android::sp<android::GraphicBuffer> mSurface;
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int32_t mOverlayId;
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// size of mSurface
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gfx::IntSize mSize;
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TextureHost* mTexture;
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#if ANDROID_VERSION >= 21
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android::sp<android::NativeHandle> mSidebandStream;
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#endif
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#endif
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};
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enum class ScaleMode : int8_t {
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SCALE_NONE,
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STRETCH,
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SENTINEL
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// Unimplemented - PRESERVE_ASPECT_RATIO_CONTAIN
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};
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struct EventRegions {
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// The hit region for a layer contains all areas on the layer that are
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// sensitive to events. This region is an over-approximation and may
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// contain regions that are not actually sensitive, but any such regions
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// will be included in the mDispatchToContentHitRegion.
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nsIntRegion mHitRegion;
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// The mDispatchToContentHitRegion for a layer contains all areas for
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// which the main-thread must be consulted before responding to events.
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// This region will be a subregion of mHitRegion.
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nsIntRegion mDispatchToContentHitRegion;
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// The following regions represent the touch-action areas of this layer.
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// All of these regions are approximations to the true region, but any
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// variance between the approximation and the true region is guaranteed
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// to be included in the mDispatchToContentHitRegion.
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nsIntRegion mNoActionRegion;
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nsIntRegion mHorizontalPanRegion;
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nsIntRegion mVerticalPanRegion;
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EventRegions()
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{
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}
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explicit EventRegions(nsIntRegion aHitRegion)
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: mHitRegion(aHitRegion)
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{
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}
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bool operator==(const EventRegions& aRegions) const
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{
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return mHitRegion == aRegions.mHitRegion &&
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mDispatchToContentHitRegion == aRegions.mDispatchToContentHitRegion;
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}
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bool operator!=(const EventRegions& aRegions) const
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{
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return !(*this == aRegions);
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}
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void OrWith(const EventRegions& aOther)
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{
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mHitRegion.OrWith(aOther.mHitRegion);
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mDispatchToContentHitRegion.OrWith(aOther.mDispatchToContentHitRegion);
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}
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void AndWith(const nsIntRegion& aRegion)
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{
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mHitRegion.AndWith(aRegion);
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mDispatchToContentHitRegion.AndWith(aRegion);
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}
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void Sub(const EventRegions& aMinuend, const nsIntRegion& aSubtrahend)
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{
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mHitRegion.Sub(aMinuend.mHitRegion, aSubtrahend);
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mDispatchToContentHitRegion.Sub(aMinuend.mDispatchToContentHitRegion, aSubtrahend);
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}
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void ApplyTranslationAndScale(float aXTrans, float aYTrans, float aXScale, float aYScale)
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{
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mHitRegion.ScaleRoundOut(aXScale, aYScale);
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mDispatchToContentHitRegion.ScaleRoundOut(aXScale, aYScale);
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mNoActionRegion.ScaleRoundOut(aXScale, aYScale);
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mHorizontalPanRegion.ScaleRoundOut(aXScale, aYScale);
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mVerticalPanRegion.ScaleRoundOut(aXScale, aYScale);
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mHitRegion.MoveBy(aXTrans, aYTrans);
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mDispatchToContentHitRegion.MoveBy(aXTrans, aYTrans);
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mNoActionRegion.MoveBy(aXTrans, aYTrans);
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mHorizontalPanRegion.MoveBy(aXTrans, aYTrans);
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mVerticalPanRegion.MoveBy(aXTrans, aYTrans);
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}
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void Transform(const gfx::Matrix4x4& aTransform)
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{
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mHitRegion.Transform(aTransform);
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mDispatchToContentHitRegion.Transform(aTransform);
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}
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bool IsEmpty() const
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{
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return mHitRegion.IsEmpty()
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&& mDispatchToContentHitRegion.IsEmpty();
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}
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nsCString ToString() const
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{
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nsCString result = mHitRegion.ToString();
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result.AppendLiteral(";dispatchToContent=");
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result.Append(mDispatchToContentHitRegion.ToString());
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return result;
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}
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};
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// Bit flags that go on a ContainerLayer (or RefLayer) and override the
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// event regions in the entire subtree below. This is needed for propagating
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// various flags across processes since the child-process layout code doesn't
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// know about parent-process listeners or CSS rules.
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enum EventRegionsOverride {
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// The default, no flags set
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NoOverride = 0,
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// Treat all hit regions in the subtree as dispatch-to-content
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ForceDispatchToContent = (1 << 0),
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// Treat all hit regions in the subtree as empty
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ForceEmptyHitRegion = (1 << 1),
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// OR union of all valid bit flags, for use in BitFlagsEnumSerializer
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ALL_BITS = (1 << 2) - 1
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};
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MOZ_ALWAYS_INLINE EventRegionsOverride
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operator|(EventRegionsOverride a, EventRegionsOverride b)
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{
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return (EventRegionsOverride)((int)a | (int)b);
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}
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MOZ_ALWAYS_INLINE EventRegionsOverride&
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operator|=(EventRegionsOverride& a, EventRegionsOverride b)
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{
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a = a | b;
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return a;
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}
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// Flags used as an argument to functions that dump textures.
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enum TextureDumpMode {
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Compress, // dump texture with LZ4 compression
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DoNotCompress // dump texture uncompressed
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};
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} // namespace layers
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} // namespace mozilla
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#endif /* GFX_LAYERSTYPES_H */
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