| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H |
| #define ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H |
| |
| #include <unordered_map> |
| |
| #include <utils/Errors.h> |
| #include <utils/LinearAllocator.h> |
| #include <utils/Vector.h> |
| |
| #include "Matrix.h" |
| #include "OpenGLRenderer.h" |
| #include "Rect.h" |
| |
| class SkBitmap; |
| |
| namespace android { |
| namespace uirenderer { |
| |
| class ClipOp; |
| class DrawOp; |
| class SaveOp; |
| class SaveLayerOp; |
| class StateOp; |
| |
| class DeferredDisplayState; |
| |
| class Batch; |
| class DrawBatch; |
| class MergingDrawBatch; |
| |
| typedef const void* mergeid_t; |
| |
| class DeferredDisplayState { |
| public: |
| /** static void* operator new(size_t size); PURPOSELY OMITTED **/ |
| static void* operator new(size_t size, LinearAllocator& allocator) { |
| return allocator.alloc(size); |
| } |
| |
| // global op bounds, mapped by mMatrix to be in screen space coordinates, clipped |
| Rect mBounds; |
| |
| // the below are set and used by the OpenGLRenderer at record and deferred playback |
| bool mClipValid; |
| Rect mClip; |
| int mClipSideFlags; // specifies which sides of the bounds are clipped, unclipped if cleared |
| bool mClipped; |
| mat4 mMatrix; |
| DrawModifiers mDrawModifiers; |
| float mAlpha; |
| const RoundRectClipState* mRoundRectClipState; |
| }; |
| |
| class OpStatePair { |
| public: |
| OpStatePair() |
| : op(NULL), state(NULL) {} |
| OpStatePair(DrawOp* newOp, const DeferredDisplayState* newState) |
| : op(newOp), state(newState) {} |
| OpStatePair(const OpStatePair& other) |
| : op(other.op), state(other.state) {} |
| DrawOp* op; |
| const DeferredDisplayState* state; |
| }; |
| |
| class DeferredDisplayList { |
| friend struct DeferStateStruct; // used to give access to allocator |
| public: |
| DeferredDisplayList(const Rect& bounds, bool avoidOverdraw = true) : |
| mBounds(bounds), mAvoidOverdraw(avoidOverdraw) { |
| clear(); |
| } |
| ~DeferredDisplayList() { clear(); } |
| |
| enum OpBatchId { |
| kOpBatch_None = 0, // Don't batch |
| kOpBatch_Bitmap, |
| kOpBatch_Patch, |
| kOpBatch_AlphaVertices, |
| kOpBatch_Vertices, |
| kOpBatch_AlphaMaskTexture, |
| kOpBatch_Text, |
| kOpBatch_ColorText, |
| |
| kOpBatch_Count, // Add other batch ids before this |
| }; |
| |
| bool isEmpty() { return mBatches.isEmpty(); } |
| |
| /** |
| * Plays back all of the draw ops recorded into batches to the renderer. |
| * Adjusts the state of the renderer as necessary, and restores it when complete |
| */ |
| status_t flush(OpenGLRenderer& renderer, Rect& dirty); |
| |
| void addClip(OpenGLRenderer& renderer, ClipOp* op); |
| void addSaveLayer(OpenGLRenderer& renderer, SaveLayerOp* op, int newSaveCount); |
| void addSave(OpenGLRenderer& renderer, SaveOp* op, int newSaveCount); |
| void addRestoreToCount(OpenGLRenderer& renderer, StateOp* op, int newSaveCount); |
| |
| /** |
| * Add a draw op into the DeferredDisplayList, reordering as needed (for performance) if |
| * disallowReorder is false, respecting draw order when overlaps occur. |
| */ |
| void addDrawOp(OpenGLRenderer& renderer, DrawOp* op); |
| |
| private: |
| DeferredDisplayList(const DeferredDisplayList& other); // disallow copy |
| |
| DeferredDisplayState* createState() { |
| return new (mAllocator) DeferredDisplayState(); |
| } |
| |
| void tryRecycleState(DeferredDisplayState* state) { |
| mAllocator.rewindIfLastAlloc(state, sizeof(DeferredDisplayState)); |
| } |
| |
| /** |
| * Resets the batching back-pointers, creating a barrier in the operation stream so that no ops |
| * added in the future will be inserted into a batch that already exist. |
| */ |
| void resetBatchingState(); |
| |
| void clear(); |
| |
| void storeStateOpBarrier(OpenGLRenderer& renderer, StateOp* op); |
| void storeRestoreToCountBarrier(OpenGLRenderer& renderer, StateOp* op, int newSaveCount); |
| |
| bool recordingComplexClip() const { return mComplexClipStackStart >= 0; } |
| |
| int getStateOpDeferFlags() const; |
| int getDrawOpDeferFlags() const; |
| |
| void discardDrawingBatches(const unsigned int maxIndex); |
| |
| // layer space bounds of rendering |
| Rect mBounds; |
| const bool mAvoidOverdraw; |
| |
| /** |
| * At defer time, stores the *defer time* savecount of save/saveLayer ops that were deferred, so |
| * that when an associated restoreToCount is deferred, it can be recorded as a |
| * RestoreToCountBatch |
| */ |
| Vector<int> mSaveStack; |
| int mComplexClipStackStart; |
| |
| Vector<Batch*> mBatches; |
| |
| // Maps batch ids to the most recent *non-merging* batch of that id |
| Batch* mBatchLookup[kOpBatch_Count]; |
| |
| // Points to the index after the most recent barrier |
| int mEarliestBatchIndex; |
| |
| // Points to the first index that may contain a pure drawing batch |
| int mEarliestUnclearedIndex; |
| |
| /** |
| * Maps the mergeid_t returned by an op's getMergeId() to the most recently seen |
| * MergingDrawBatch of that id. These ids are unique per draw type and guaranteed to not |
| * collide, which avoids the need to resolve mergeid collisions. |
| */ |
| std::unordered_map<mergeid_t, DrawBatch*> mMergingBatches[kOpBatch_Count]; |
| |
| LinearAllocator mAllocator; |
| }; |
| |
| /** |
| * Struct containing information that instructs the defer |
| */ |
| struct DeferInfo { |
| public: |
| DeferInfo() : |
| batchId(DeferredDisplayList::kOpBatch_None), |
| mergeId((mergeid_t) -1), |
| mergeable(false), |
| opaqueOverBounds(false) { |
| }; |
| |
| int batchId; |
| mergeid_t mergeId; |
| bool mergeable; |
| bool opaqueOverBounds; // opaque over bounds in DeferredDisplayState - can skip ops below |
| }; |
| |
| }; // namespace uirenderer |
| }; // namespace android |
| |
| #endif // ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H |