Snapshot.h revision deeda3d337aed1eee218b89a7aba5992ced371f0
15cbbce535744b89df5ecea95de21ee3733298260Romain Guy/* 25cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Copyright (C) 2010 The Android Open Source Project 35cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 45cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 55cbbce535744b89df5ecea95de21ee3733298260Romain Guy * you may not use this file except in compliance with the License. 65cbbce535744b89df5ecea95de21ee3733298260Romain Guy * You may obtain a copy of the License at 75cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 85cbbce535744b89df5ecea95de21ee3733298260Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 95cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 105cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Unless required by applicable law or agreed to in writing, software 115cbbce535744b89df5ecea95de21ee3733298260Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 125cbbce535744b89df5ecea95de21ee3733298260Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 135cbbce535744b89df5ecea95de21ee3733298260Romain Guy * See the License for the specific language governing permissions and 145cbbce535744b89df5ecea95de21ee3733298260Romain Guy * limitations under the License. 155cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 165cbbce535744b89df5ecea95de21ee3733298260Romain Guy 175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#ifndef ANDROID_HWUI_SNAPSHOT_H 185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#define ANDROID_HWUI_SNAPSHOT_H 195cbbce535744b89df5ecea95de21ee3733298260Romain Guy 205cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <GLES2/gl2.h> 215cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <GLES2/gl2ext.h> 225cbbce535744b89df5ecea95de21ee3733298260Romain Guy 23deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik#include <utils/LinearAllocator.h> 245cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <utils/RefBase.h> 255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#include <ui/Region.h> 265cbbce535744b89df5ecea95de21ee3733298260Romain Guy 27ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy#include <SkRegion.h> 28079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy 29dda570201ac851dd85af3861f7e575721d3345daRomain Guy#include "Layer.h" 305cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include "Matrix.h" 31deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik#include "Outline.h" 325cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include "Rect.h" 33deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik#include "utils/Macros.h" 345cbbce535744b89df5ecea95de21ee3733298260Romain Guy 355cbbce535744b89df5ecea95de21ee3733298260Romain Guynamespace android { 365cbbce535744b89df5ecea95de21ee3733298260Romain Guynamespace uirenderer { 375cbbce535744b89df5ecea95de21ee3733298260Romain Guy 385cbbce535744b89df5ecea95de21ee3733298260Romain Guy/** 39deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * Temporary structure holding information for a single outline clip. 40deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * 41deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * These structures are treated as immutable once created, and only exist for a single frame, which 42deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * is why they may only be allocated with a LinearAllocator. 43deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik */ 44deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craikclass RoundRectClipState { 45deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craikpublic: 46deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik /** static void* operator new(size_t size); PURPOSELY OMITTED, allocator only **/ 47deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik static void* operator new(size_t size, LinearAllocator& allocator) { 48deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik return allocator.alloc(size); 49deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik } 50deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik 51deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik bool areaRequiresRoundRectClip(const Rect& rect) const { 52deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik return rect.intersects(dangerRects[0]) 53deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik || rect.intersects(dangerRects[1]) 54deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik || rect.intersects(dangerRects[2]) 55deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik || rect.intersects(dangerRects[3]); 56deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik } 57deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik 58deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik Matrix4 matrix; 59deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik Rect dangerRects[4]; 60deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik Rect outlineInnerRect; 61deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik float outlineRadius; 62deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik}; 63deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik 64deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik/** 655cbbce535744b89df5ecea95de21ee3733298260Romain Guy * A snapshot holds information about the current state of the rendering 665cbbce535744b89df5ecea95de21ee3733298260Romain Guy * surface. A snapshot is usually created whenever the user calls save() 675cbbce535744b89df5ecea95de21ee3733298260Romain Guy * and discarded when the user calls restore(). Once a snapshot is created, 685cbbce535744b89df5ecea95de21ee3733298260Romain Guy * it can hold information for deferred rendering. 695cbbce535744b89df5ecea95de21ee3733298260Romain Guy * 705cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Each snapshot has a link to a previous snapshot, indicating the previous 715cbbce535744b89df5ecea95de21ee3733298260Romain Guy * state of the renderer. 725cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 735cbbce535744b89df5ecea95de21ee3733298260Romain Guyclass Snapshot: public LightRefBase<Snapshot> { 745cbbce535744b89df5ecea95de21ee3733298260Romain Guypublic: 755cbbce535744b89df5ecea95de21ee3733298260Romain Guy 76ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy Snapshot(); 77ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy Snapshot(const sp<Snapshot>& s, int saveFlags); 785cbbce535744b89df5ecea95de21ee3733298260Romain Guy 795cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 80ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * Various flags set on ::flags. 815cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 825cbbce535744b89df5ecea95de21ee3733298260Romain Guy enum Flags { 835cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 845cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Indicates that the clip region was modified. When this 855cbbce535744b89df5ecea95de21ee3733298260Romain Guy * snapshot is restored so must the clip. 865cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 875cbbce535744b89df5ecea95de21ee3733298260Romain Guy kFlagClipSet = 0x1, 885cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 895cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Indicates that this snapshot was created when saving 905cbbce535744b89df5ecea95de21ee3733298260Romain Guy * a new layer. 915cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 92079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy kFlagIsLayer = 0x2, 93f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy /** 94eb99356a0548684a501766e6a524529ab93304c8Romain Guy * Indicates that this snapshot is a special type of layer 95eb99356a0548684a501766e6a524529ab93304c8Romain Guy * backed by an FBO. This flag only makes sense when the 96eb99356a0548684a501766e6a524529ab93304c8Romain Guy * flag kFlagIsLayer is also set. 97a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik * 98a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik * Viewport has been modified to fit the new Fbo, and must be 99a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik * restored when this snapshot is restored. 100eb99356a0548684a501766e6a524529ab93304c8Romain Guy */ 101eb99356a0548684a501766e6a524529ab93304c8Romain Guy kFlagIsFboLayer = 0x4, 102eb99356a0548684a501766e6a524529ab93304c8Romain Guy /** 1035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy * Indicates that this snapshot or an ancestor snapshot is 1045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy * an FBO layer. 1055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy */ 106a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik kFlagFboTarget = 0x8, 1075cbbce535744b89df5ecea95de21ee3733298260Romain Guy }; 1085cbbce535744b89df5ecea95de21ee3733298260Romain Guy 1095cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 110f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy * Modifies the current clip with the new clip rectangle and 111f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy * the specified operation. The specified rectangle is transformed 112f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy * by this snapshot's trasnformation. 1133d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy */ 114f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy bool clip(float left, float top, float right, float bottom, 115ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy SkRegion::Op op = SkRegion::kIntersect_Op); 116f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 117f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy /** 118f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy * Modifies the current clip with the new clip rectangle and 119f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy * the specified operation. The specified rectangle is considered 120f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy * already transformed. 121f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy */ 122ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy bool clipTransformed(const Rect& r, SkRegion::Op op = SkRegion::kIntersect_Op); 1235cbbce535744b89df5ecea95de21ee3733298260Romain Guy 1245cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 1258ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy * Modifies the current clip with the specified region and operation. 1268ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy * The specified region is considered already transformed. 1278ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy */ 1288ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy bool clipRegionTransformed(const SkRegion& region, SkRegion::Op op); 1298ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy 1308ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy /** 131d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy * Sets the current clip. 132d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy */ 133ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy void setClip(float left, float top, float right, float bottom); 134959c91f7f7b4f921d341264f5b4ef54e702a0df0Romain Guy 135ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy /** 136ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * Returns the current clip in local coordinates. The clip rect is 137ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * transformed by the inverse transform matrix. 138ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy */ 1393f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik const Rect& getLocalClip(); 1403f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik 1413f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik /** 1423f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik * Returns the current clip in render target coordinates. 1433f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik */ 1443f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik const Rect& getRenderTargetClip() { return *clipRect; } 145d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 146ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy /** 147ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * Resets the clip to the specified rect. 148ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy */ 149ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy void resetClip(float left, float top, float right, float bottom); 150eb99356a0548684a501766e6a524529ab93304c8Romain Guy 151ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy /** 152ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * Resets the current transform to a pure 3D translation. 153ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy */ 154ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy void resetTransform(float x, float y, float z); 155eb99356a0548684a501766e6a524529ab93304c8Romain Guy 156a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik void initializeViewport(int width, int height) { 157a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik mViewportData.initialize(width, height); 158a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik } 159a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik 160a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik int getViewportWidth() const { return mViewportData.mWidth; } 161a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik int getViewportHeight() const { return mViewportData.mHeight; } 162a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik const Matrix4& getOrthoMatrix() const { return mViewportData.mOrthoMatrix; } 163a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik 164ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy /** 165deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * Sets (and replaces) the current clipping outline 166deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik */ 167deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik void setClippingOutline(LinearAllocator& allocator, const Outline* outline); 168deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik 169deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik /** 170ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * Indicates whether this snapshot should be ignored. A snapshot 171ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * is typicalled ignored if its layer is invisible or empty. 172ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy */ 173ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy bool isIgnored() const; 174af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy 1758b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy /** 176a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy * Indicates whether the current transform has perspective components. 177a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy */ 178a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy bool hasPerspectiveTransform() const; 179a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy 180a3dc55f83ab583e0a66b893c71b849afa046770aRomain Guy /** 1815cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Dirty flags. 1825cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 1835cbbce535744b89df5ecea95de21ee3733298260Romain Guy int flags; 1845cbbce535744b89df5ecea95de21ee3733298260Romain Guy 1855cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 1865cbbce535744b89df5ecea95de21ee3733298260Romain Guy * Previous snapshot. 1875cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 1885cbbce535744b89df5ecea95de21ee3733298260Romain Guy sp<Snapshot> previous; 1895cbbce535744b89df5ecea95de21ee3733298260Romain Guy 1905cbbce535744b89df5ecea95de21ee3733298260Romain Guy /** 1918ce00301a023eecaeb8891ce906f67b513ebb42aRomain Guy * A pointer to the currently active layer. 192ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * 193ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * This snapshot does not own the layer, this pointer must not be freed. 1945cbbce535744b89df5ecea95de21ee3733298260Romain Guy */ 195dda570201ac851dd85af3861f7e575721d3345daRomain Guy Layer* layer; 196f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 1978aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy /** 198421458aad764cd9d1403d2540ab979b336b02341Romain Guy * Target FBO used for rendering. Set to 0 when rendering directly 199421458aad764cd9d1403d2540ab979b336b02341Romain Guy * into the framebuffer. 200eb99356a0548684a501766e6a524529ab93304c8Romain Guy */ 201eb99356a0548684a501766e6a524529ab93304c8Romain Guy GLuint fbo; 202eb99356a0548684a501766e6a524529ab93304c8Romain Guy 203eb99356a0548684a501766e6a524529ab93304c8Romain Guy /** 204dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy * Indicates that this snapshot is invisible and nothing should be drawn 205af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy * inside it. This flag is set only when the layer clips drawing to its 206af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy * bounds and is passed to subsequent snapshots. 207dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy */ 208dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy bool invisible; 209dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 210dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy /** 211af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy * If set to true, the layer will not be composited. This is similar to 212af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy * invisible but this flag is not passed to subsequent snapshots. 213af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy */ 214af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy bool empty; 215af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy 216af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy /** 2178aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy * Local transformation. Holds the current translation, scale and 2188aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy * rotation values. 219ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * 220ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * This is a reference to a matrix owned by this snapshot or another 221ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * snapshot. This pointer must not be freed. See ::mTransformRoot. 2228aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy */ 2238aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mat4* transform; 2248aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy 2258aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy /** 226967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy * Current clip rect. The clip is stored in canvas-space coordinates, 2278aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy * (screen-space coordinates in the regular case.) 228ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * 229ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * This is a reference to a rect owned by this snapshot or another 230ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * snapshot. This pointer must not be freed. See ::mClipRectRoot. 2318aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy */ 2328aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect* clipRect; 2338aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy 2345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy /** 235967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy * Current clip region. The clip is stored in canvas-space coordinates, 236967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy * (screen-space coordinates in the regular case.) 237967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy * 238967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy * This is a reference to a region owned by this snapshot or another 239967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy * snapshot. This pointer must not be freed. See ::mClipRegionRoot. 240967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy */ 2410baaac5e9adf3ee280ae1239e2e58754a9d2b099Romain Guy SkRegion* clipRegion; 242967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy 243967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy /** 244f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy * The ancestor layer's dirty region. 245ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * 246ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * This is a reference to a region owned by a layer. This pointer must 247ada4d53d50dc869b8278573ad640dc44118d3bcfRomain Guy * not be freed. 2485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy */ 2495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Region* region; 2505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 251db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase /** 252db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase * Current alpha value. This value is 1 by default, but may be set by a DisplayList which 253db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase * has translucent rendering in a non-overlapping View. This value will be used by 254db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase * the renderer to set the alpha in the current color being used for ensuing drawing 255db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase * operations. The value is inherited by child snapshots because the same value should 256db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase * be applied to descendents of the current DisplayList (for example, a TextView contains 257db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase * the base alpha value which should be applied to the child DisplayLists used for drawing 258db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase * the actual text). 259db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase */ 260db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase float alpha; 261db8c9a6a4d9bf8c39f834b25611926caf21380f6Chet Haase 262deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik /** 263deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * Current clipping round rect. 264deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * 265deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * Points to data not owned by the snapshot, and may only be replaced by subsequent RR clips, 266deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik * never modified. 267deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik */ 268deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik const RoundRectClipState* roundRectClipState; 269deeda3d337aed1eee218b89a7aba5992ced371f0Chris Craik 2705f803623559aab395a29d575c37c4e39c23a4b4eChris Craik void dump() const; 2715f803623559aab395a29d575c37c4e39c23a4b4eChris Craik 2725cbbce535744b89df5ecea95de21ee3733298260Romain Guyprivate: 273a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik struct ViewportData { 274a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik ViewportData() : mWidth(0), mHeight() {} 275a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik void initialize(int width, int height) { 276a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik mWidth = width; 277a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik mHeight = height; 278a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 279a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik } 280a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik 281a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik /* 282a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik * Width and height of current viewport. 283a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik * 284a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik * The viewport is always defined to be (0, 0, width, height). 285a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik */ 286a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik int mWidth; 287a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik int mHeight; 288a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik /** 289a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik * Contains the current orthographic, projection matrix. 290a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik */ 291a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik mat4 mOrthoMatrix; 292a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik }; 293a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik 294967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy void ensureClipRegion(); 295967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy void copyClipRectFromRegion(); 296967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy 2970baaac5e9adf3ee280ae1239e2e58754a9d2b099Romain Guy bool clipRegionOp(float left, float top, float right, float bottom, SkRegion::Op op); 298967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy 2998aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mat4 mTransformRoot; 3008aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect mClipRectRoot; 3013f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik Rect mLocalClip; // don't use directly, call getLocalClip() which initializes this 302079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy 3030baaac5e9adf3ee280ae1239e2e58754a9d2b099Romain Guy SkRegion mClipRegionRoot; 304a64a2bef1048db5a742843f1e3bea9e80d0defc5Chris Craik ViewportData mViewportData; 305967e2bf3ac8943a8e8a374bf86021915445cda67Romain Guy 3065cbbce535744b89df5ecea95de21ee3733298260Romain Guy}; // class Snapshot 3075cbbce535744b89df5ecea95de21ee3733298260Romain Guy 3085cbbce535744b89df5ecea95de21ee3733298260Romain Guy}; // namespace uirenderer 3095cbbce535744b89df5ecea95de21ee3733298260Romain Guy}; // namespace android 3105cbbce535744b89df5ecea95de21ee3733298260Romain Guy 3115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_SNAPSHOT_H 312