RecordedOp.h revision a1717271caac5e8ea3808c331d4141ac01a42134
1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_HWUI_RECORDED_OP_H 18#define ANDROID_HWUI_RECORDED_OP_H 19 20#include "font/FontUtil.h" 21#include "Matrix.h" 22#include "Rect.h" 23#include "RenderNode.h" 24#include "utils/LinearAllocator.h" 25#include "Vector.h" 26 27#include "SkXfermode.h" 28 29class SkBitmap; 30class SkPaint; 31 32namespace android { 33namespace uirenderer { 34 35class OffscreenBuffer; 36class RenderNode; 37struct Vertex; 38 39/** 40 * The provided macro is executed for each op type in order, with the results separated by commas. 41 * 42 * This serves as the authoritative list of ops, used for generating ID enum, and ID based LUTs. 43 */ 44#define MAP_OPS(OP_FN) \ 45 OP_FN(BitmapOp) \ 46 OP_FN(LinesOp) \ 47 OP_FN(RectOp) \ 48 OP_FN(RenderNodeOp) \ 49 OP_FN(ShadowOp) \ 50 OP_FN(SimpleRectsOp) \ 51 OP_FN(TextOp) \ 52 OP_FN(BeginLayerOp) \ 53 OP_FN(EndLayerOp) \ 54 OP_FN(LayerOp) 55 56// Generate OpId enum 57#define IDENTITY_FN(Type) Type, 58namespace RecordedOpId { 59 enum { 60 MAP_OPS(IDENTITY_FN) 61 Count, 62 }; 63} 64static_assert(RecordedOpId::BitmapOp == 0, 65 "First index must be zero for LUTs to work"); 66 67#define BASE_PARAMS const Rect& unmappedBounds, const Matrix4& localMatrix, const Rect& localClipRect, const SkPaint* paint 68#define BASE_PARAMS_PAINTLESS const Rect& unmappedBounds, const Matrix4& localMatrix, const Rect& localClipRect 69#define SUPER(Type) RecordedOp(RecordedOpId::Type, unmappedBounds, localMatrix, localClipRect, paint) 70#define SUPER_PAINTLESS(Type) RecordedOp(RecordedOpId::Type, unmappedBounds, localMatrix, localClipRect, nullptr) 71 72struct RecordedOp { 73 /* ID from RecordedOpId - generally used for jumping into function tables */ 74 const int opId; 75 76 /* bounds in *local* space, without accounting for DisplayList transformation */ 77 const Rect unmappedBounds; 78 79 /* transform in recording space (vs DisplayList origin) */ 80 const Matrix4 localMatrix; 81 82 /* clip in recording space */ 83 const Rect localClipRect; 84 85 /* optional paint, stored in base object to simplify merging logic */ 86 const SkPaint* paint; 87protected: 88 RecordedOp(unsigned int opId, BASE_PARAMS) 89 : opId(opId) 90 , unmappedBounds(unmappedBounds) 91 , localMatrix(localMatrix) 92 , localClipRect(localClipRect) 93 , paint(paint) {} 94}; 95 96struct RenderNodeOp : RecordedOp { 97 RenderNodeOp(BASE_PARAMS_PAINTLESS, RenderNode* renderNode) 98 : SUPER_PAINTLESS(RenderNodeOp) 99 , renderNode(renderNode) {} 100 RenderNode * renderNode; // not const, since drawing modifies it (somehow...) 101 bool skipInOrderDraw = false; 102}; 103 104//////////////////////////////////////////////////////////////////////////////////////////////////// 105// Standard Ops 106//////////////////////////////////////////////////////////////////////////////////////////////////// 107 108struct BitmapOp : RecordedOp { 109 BitmapOp(BASE_PARAMS, const SkBitmap* bitmap) 110 : SUPER(BitmapOp) 111 , bitmap(bitmap) {} 112 const SkBitmap* bitmap; 113 // TODO: asset atlas/texture id lookup? 114}; 115 116struct LinesOp : RecordedOp { 117 LinesOp(BASE_PARAMS, const float* points, const int floatCount) 118 : SUPER(LinesOp) 119 , points(points) 120 , floatCount(floatCount) {} 121 const float* points; 122 const int floatCount; 123}; 124 125struct RectOp : RecordedOp { 126 RectOp(BASE_PARAMS) 127 : SUPER(RectOp) {} 128}; 129 130/** 131 * Real-time, dynamic-lit shadow. 132 * 133 * Uses invalid/empty bounds and matrix since ShadowOp bounds aren't known at defer time, 134 * and are resolved dynamically, and transform isn't needed. 135 * 136 * State construction handles these properties specially, ignoring matrix/bounds. 137 */ 138struct ShadowOp : RecordedOp { 139 ShadowOp(const RenderNodeOp& casterOp, float casterAlpha, const SkPath* casterPath, 140 const Rect& clipRect, const Vector3& lightCenter) 141 : RecordedOp(RecordedOpId::ShadowOp, Rect(), Matrix4::identity(), clipRect, nullptr) 142 , shadowMatrixXY(casterOp.localMatrix) 143 , shadowMatrixZ(casterOp.localMatrix) 144 , casterAlpha(casterAlpha) 145 , casterPath(casterPath) 146 , lightCenter(lightCenter) { 147 const RenderNode& node = *casterOp.renderNode; 148 node.applyViewPropertyTransforms(shadowMatrixXY, false); 149 node.applyViewPropertyTransforms(shadowMatrixZ, true); 150 }; 151 Matrix4 shadowMatrixXY; 152 Matrix4 shadowMatrixZ; 153 const float casterAlpha; 154 const SkPath* casterPath; 155 const Vector3 lightCenter; 156}; 157 158struct SimpleRectsOp : RecordedOp { // Filled, no AA (TODO: better name?) 159 SimpleRectsOp(BASE_PARAMS, Vertex* vertices, size_t vertexCount) 160 : SUPER(SimpleRectsOp) 161 , vertices(vertices) 162 , vertexCount(vertexCount) {} 163 Vertex* vertices; 164 const size_t vertexCount; 165}; 166 167struct TextOp : RecordedOp { 168 TextOp(BASE_PARAMS, const glyph_t* glyphs, const float* positions, int glyphCount, 169 float x, float y) 170 : SUPER(TextOp) 171 , glyphs(glyphs) 172 , positions(positions) 173 , glyphCount(glyphCount) 174 , x(x) 175 , y(y) {} 176 const glyph_t* glyphs; 177 const float* positions; 178 const int glyphCount; 179 const float x; 180 const float y; 181}; 182 183//////////////////////////////////////////////////////////////////////////////////////////////////// 184// Layers 185//////////////////////////////////////////////////////////////////////////////////////////////////// 186 187 188/** 189 * Stateful operation! denotes the creation of an off-screen layer, 190 * and that commands following will render into it. 191 */ 192struct BeginLayerOp : RecordedOp { 193 BeginLayerOp(BASE_PARAMS) 194 : SUPER(BeginLayerOp) {} 195}; 196 197/** 198 * Stateful operation! Denotes end of off-screen layer, and that 199 * commands since last BeginLayerOp should be drawn into parent FBO. 200 * 201 * State in this op is empty, it just serves to signal that a layer has been finished. 202 */ 203struct EndLayerOp : RecordedOp { 204 EndLayerOp() 205 : RecordedOp(RecordedOpId::EndLayerOp, Rect(0, 0), Matrix4::identity(), Rect(0, 0), nullptr) {} 206}; 207 208/** 209 * Draws an OffscreenBuffer. 210 * 211 * Alpha, mode, and colorfilter are embedded, since LayerOps are always dynamically generated, 212 * when creating/tracking a SkPaint* during defer isn't worth the bother. 213 */ 214struct LayerOp : RecordedOp { 215 // Records a one-use (saveLayer) layer for drawing. Once drawn, the layer will be destroyed. 216 LayerOp(BASE_PARAMS, OffscreenBuffer** layerHandle) 217 : SUPER_PAINTLESS(LayerOp) 218 , layerHandle(layerHandle) 219 , alpha(paint->getAlpha() / 255.0f) 220 , mode(PaintUtils::getXfermodeDirect(paint)) 221 , colorFilter(paint->getColorFilter()) 222 , destroy(true) {} 223 224 LayerOp(RenderNode& node) 225 : RecordedOp(RecordedOpId::LayerOp, Rect(node.getWidth(), node.getHeight()), Matrix4::identity(), Rect(node.getWidth(), node.getHeight()), nullptr) 226 , layerHandle(node.getLayerHandle()) 227 , alpha(node.properties().layerProperties().alpha() / 255.0f) 228 , mode(node.properties().layerProperties().xferMode()) 229 , colorFilter(node.properties().layerProperties().colorFilter()) 230 , destroy(false) {} 231 232 // Records a handle to the Layer object, since the Layer itself won't be 233 // constructed until after this operation is constructed. 234 OffscreenBuffer** layerHandle; 235 const float alpha; 236 const SkXfermode::Mode mode; 237 238 // pointer to object owned by either LayerProperties, or a recorded Paint object in a 239 // BeginLayerOp. Lives longer than LayerOp in either case, so no skia ref counting is used. 240 SkColorFilter* colorFilter; 241 242 // whether to destroy the layer, once rendered 243 const bool destroy; 244}; 245 246}; // namespace uirenderer 247}; // namespace android 248 249#endif // ANDROID_HWUI_RECORDED_OP_H 250