OpenGLRenderer.cpp revision ebd52610cfeff6e557fde284a7e1efc5e6438285
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2010 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * Licensed under the Apache License, Version 2.0 (the "License"); 5106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * you may not use this file except in compliance with the License. 6106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * Unless required by applicable law or agreed to in writing, software 11106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * distributed under the License is distributed on an "AS IS" BASIS, 12106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 178451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes#define LOG_TAG "OpenGLRenderer" 188451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 198451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes#include <stdlib.h> 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdint.h> 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/types.h> 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <SkCanvas.h> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <SkColor.h> 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <SkShader.h> 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <SkTypeface.h> 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich#include <utils/Log.h> 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/StopWatch.h> 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <private/hwui/DrawGlInfo.h> 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <ui/Rect.h> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "OpenGLRenderer.h" 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "DeferredDisplayList.h" 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "DisplayListRenderer.h" 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "Fence.h" 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "RenderState.h" 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "PathTessellator.h" 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "Properties.h" 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "ShadowTessellator.h" 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "SkiaShader.h" 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "utils/GLUtils.h" 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "utils/TraceUtils.h" 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "Vector.h" 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "VertexBuffer.h" 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#if DEBUG_DETAILED_EVENTS 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project #define EVENT_LOGD(...) eventMarkDEBUG(__VA_ARGS__) 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#else 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project #define EVENT_LOGD(...) 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#endif 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 56106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichnamespace uirenderer { 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic GLenum getFilter(const SkPaint* paint) { 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!paint || paint->getFilterLevel() != SkPaint::kNone_FilterLevel) { 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return GL_LINEAR; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich return GL_NEAREST; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Globals 67106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich/////////////////////////////////////////////////////////////////////////////// 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Structure mapping Skia xfermodes to OpenGL blending factors. 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct Blender { 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkXfermode::Mode mode; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GLenum src; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GLenum dst; 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // struct Blender 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// In this array, the index of each Blender equals the value of the first 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic const Blender gBlends[] = { 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kClear_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 91106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kPlus_Mode, GL_ONE, GL_ONE }, 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kModulate_Mode, GL_ZERO, GL_SRC_COLOR }, 95106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich { SkXfermode::kScreen_Mode, GL_ONE, GL_ONE_MINUS_SRC_COLOR } 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// This array contains the swapped version of each SkXfermode. For instance 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// this array's SrcOver blending mode is actually DstOver. You can refer to 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// createLayer() for more information on the purpose of this array. 101106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichstatic const Blender gBlendsSwap[] = { 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kClear_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE }, 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDst_Mode, GL_ONE, GL_ZERO }, 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO }, 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 113106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kPlus_Mode, GL_ONE, GL_ONE }, 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kModulate_Mode, GL_DST_COLOR, GL_ZERO }, 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { SkXfermode::kScreen_Mode, GL_ONE_MINUS_DST_COLOR, GL_ONE } 117106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich}; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 120106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich// Functions 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projecttemplate<typename T> 124106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichstatic inline T min(T a, T b) { 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return a < b ? a : b; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Constructors/destructor 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectOpenGLRenderer::OpenGLRenderer(RenderState& renderState) 133106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich : mFrameStarted(false) 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mCaches(Caches::getInstance()) 135106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich , mExtensions(Extensions::getInstance()) 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mRenderState(renderState) 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mScissorOptimizationDisabled(false) 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mSuppressTiling(false) 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mFirstFrameAfterResize(true) 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mLightCenter((Vector3){FLT_MIN, FLT_MIN, FLT_MIN}) 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mLightRadius(FLT_MIN) 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mAmbientShadowAlpha(0) 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project , mSpotShadowAlpha(0) { 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // *set* draw modifiers to be 0 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project memset(&mDrawModifiers, 0, sizeof(mDrawModifiers)); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawModifiers.mOverrideLayerAlpha = 1.0f; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectOpenGLRenderer::~OpenGLRenderer() { 1528451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes // The context has already been destroyed at this point, do not call 1538451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes // GL APIs. All GL state should be kept in Caches.h 1548451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes} 1558451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::initProperties() { 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char property[PROPERTY_VALUE_MAX]; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (property_get(PROPERTY_DISABLE_SCISSOR_OPTIMIZATION, property, "false")) { 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScissorOptimizationDisabled = !strcasecmp(property, "true"); 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project INIT_LOGD(" Scissor optimization %s", 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScissorOptimizationDisabled ? "disabled" : "enabled"); 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project INIT_LOGD(" Scissor optimization enabled"); 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::initLight(const Vector3& lightCenter, float lightRadius, 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) { 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLightCenter = lightCenter; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLightRadius = lightRadius; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAmbientShadowAlpha = ambientShadowAlpha; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpotShadowAlpha = spotShadowAlpha; 173106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich} 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Setup 177106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich/////////////////////////////////////////////////////////////////////////////// 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::onViewportInitialized() { 180106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich glDisable(GL_DITHER); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1838451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes glEnableVertexAttribArray(Program::kBindingPosition); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstFrameAfterResize = true; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1878451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughesvoid OpenGLRenderer::setupFrameState(float left, float top, 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, bool opaque) { 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.clearGarbage(); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeSaveStack(left, top, right, bottom, mLightCenter); 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOpaque = opaque; 1928451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes mTilingClip.set(left, top, right, bottom); 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t OpenGLRenderer::startFrame() { 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFrameStarted) return DrawGlInfo::kStatusDone; 197106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mFrameStarted = true; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mDirtyClip = true; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project discardFramebuffer(mTilingClip.left, mTilingClip.top, mTilingClip.right, mTilingClip.bottom); 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRenderState.setViewport(getWidth(), getHeight()); 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Functors break the tiling extension in pretty spectacular ways 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This ensures we don't use tiling when a functor is going to be 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // invoked during the frame 208106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mSuppressTiling = mCaches.hasRegisteredFunctors() 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || mFirstFrameAfterResize; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstFrameAfterResize = false; 211106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startTilingCurrentClip(true); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project debugOverdraw(true, true); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clear(mTilingClip.left, mTilingClip.top, 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTilingClip.right, mTilingClip.bottom, mOpaque); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t OpenGLRenderer::prepareDirty(float left, float top, 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, bool opaque) { 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setupFrameState(left, top, right, bottom, opaque); 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layer renderers will start the frame immediately 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The framebuffer renderer will first defer the display list 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // for each layer and wait until the first drawing command 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to start the frame 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (currentSnapshot()->fbo == 0) { 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project syncState(); 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project updateLayers(); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 233106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich return startFrame(); 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return DrawGlInfo::kStatusDone; 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::discardFramebuffer(float left, float top, float right, float bottom) { 240106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich // If we know that we are going to redraw the entire framebuffer, 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // perform a discard to let the driver know we don't need to preserve 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the back buffer for this frame. 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mExtensions.hasDiscardFramebuffer() && 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left <= 0.0f && top <= 0.0f && right >= getWidth() && bottom >= getHeight()) { 245106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich const bool isFbo = getTargetFbo() == 0; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const GLenum attachments[] = { 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isFbo ? (const GLenum) GL_COLOR_EXT : (const GLenum) GL_COLOR_ATTACHMENT0, 248106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich isFbo ? (const GLenum) GL_STENCIL_EXT : (const GLenum) GL_STENCIL_ATTACHMENT }; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, attachments); 2508451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes } 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 253106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichstatus_t OpenGLRenderer::clear(float left, float top, float right, float bottom, bool opaque) { 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!opaque) { 255106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mCaches.enableScissor(); 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.setScissor(left, getViewportHeight() - bottom, right - left, bottom - top); 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glClear(GL_COLOR_BUFFER_BIT); 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return DrawGlInfo::kStatusDrew; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.resetScissor(); 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return DrawGlInfo::kStatusDone; 263106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich} 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::syncState() { 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCaches.blend) { 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glEnable(GL_BLEND); 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDisable(GL_BLEND); 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::startTilingCurrentClip(bool opaque, bool expand) { 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mSuppressTiling) { 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const Snapshot* snapshot = currentSnapshot(); 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const Rect* clip = &mTilingClip; 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (snapshot->flags & Snapshot::kFlagFboTarget) { 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clip = &(snapshot->layer->clipRect); 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startTiling(*clip, getViewportHeight(), opaque, expand); 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::startTiling(const Rect& clip, int windowHeight, bool opaque, bool expand) { 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mSuppressTiling) { 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if(expand) { 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Expand the startTiling region by 1 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int leftNotZero = (clip.left > 0) ? 1 : 0; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int topNotZero = (windowHeight - clip.bottom > 0) ? 1 : 0; 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 293106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mCaches.startTiling( 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clip.left - leftNotZero, 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project windowHeight - clip.bottom - topNotZero, 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clip.right - clip.left + leftNotZero + 1, 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clip.bottom - clip.top + topNotZero + 1, 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project opaque); 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.startTiling(clip.left, windowHeight - clip.bottom, 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clip.right - clip.left, clip.bottom - clip.top, opaque); 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 304106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich} 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::endTiling() { 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mSuppressTiling) mCaches.endTiling(); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::finish() { 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project renderOverdraw(); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endTiling(); 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // When finish() is invoked on FBO 0 we've reached the end 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // of the current frame 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getTargetFbo() == 0) { 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.pathCache.trim(); 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.tessellationCache.trim(); 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!suppressErrorChecks()) { 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#if DEBUG_OPENGL 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GLUtils::dumpGLErrors(); 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#endif 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#if DEBUG_MEMORY_USAGE 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.dumpMemoryUsage(); 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#else 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCaches.getDebugLevel() & kDebugMemory) { 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.dumpMemoryUsage(); 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#endif 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFrameStarted = false; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::resumeAfterLayer() { 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRenderState.setViewport(getViewportWidth(), getViewportHeight()); 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRenderState.bindFramebuffer(currentSnapshot()->fbo); 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project debugOverdraw(true, false); 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.resetScissor(); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dirtyClip(); 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t OpenGLRenderer::callDrawGLFunction(Functor* functor, Rect& dirty) { 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect clip(*currentClipRect()); 351106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich clip.snapToPixelBoundaries(); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Since we don't know what the functor will draw, let's dirty 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the entire clip region 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasLayer()) { 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dirtyLayerUnchecked(clip, getRegion()); 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project DrawGlInfo info; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project info.clipLeft = clip.left; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project info.clipTop = clip.top; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project info.clipRight = clip.right; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project info.clipBottom = clip.bottom; 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project info.isLayer = hasLayer(); 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project info.width = getViewportWidth(); 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project info.height = getViewportHeight(); 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project currentTransform()->copyTo(&info.transform[0]); 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool prevDirtyClip = mDirtyClip; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // setup GL state for functor 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDirtyClip) { 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStencilFromClip(); // can issue draws, so must precede enableScissor()/interrupt() 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCaches.enableScissor() || prevDirtyClip) { 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScissorFromClip(); 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRenderState.invokeFunctor(functor, DrawGlInfo::kModeDraw, &info); 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Scissor may have been modified, reset dirty clip 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dirtyClip(); 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return DrawGlInfo::kStatusDrew; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Debug 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::eventMarkDEBUG(const char* fmt, ...) const { 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#if DEBUG_DETAILED_EVENTS 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int BUFFER_SIZE = 256; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project va_list ap; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buf[BUFFER_SIZE]; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project va_start(ap, fmt); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project vsnprintf(buf, BUFFER_SIZE, fmt, ap); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project va_end(ap); 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project eventMark(buf); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#endif 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 403106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::eventMark(const char* name) const { 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.eventMark(0, name); 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 408106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichvoid OpenGLRenderer::startMark(const char* name) const { 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.startMark(0, name); 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 412106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichvoid OpenGLRenderer::endMark() const { 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.endMark(); 414106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich} 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 416106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichvoid OpenGLRenderer::debugOverdraw(bool enable, bool clear) { 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRenderState.debugOverdraw(enable, clear); 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::renderOverdraw() { 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCaches.debugOverdraw && getTargetFbo() == 0) { 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const Rect* clip = &mTilingClip; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.enableScissor(); 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.setScissor(clip->left, firstSnapshot()->getViewportHeight() - clip->bottom, 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clip->right - clip->left, clip->bottom - clip->top); 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 1x overdraw 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.stencil.enableDebugTest(2); 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawColor(mCaches.getOverdrawColor(1), SkXfermode::kSrcOver_Mode); 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 2x overdraw 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.stencil.enableDebugTest(3); 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawColor(mCaches.getOverdrawColor(2), SkXfermode::kSrcOver_Mode); 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 3x overdraw 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.stencil.enableDebugTest(4); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawColor(mCaches.getOverdrawColor(3), SkXfermode::kSrcOver_Mode); 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 4x overdraw and higher 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.stencil.enableDebugTest(4, true); 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawColor(mCaches.getOverdrawColor(4), SkXfermode::kSrcOver_Mode); 443106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCaches.stencil.disable(); 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 447106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Layers 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectbool OpenGLRenderer::updateLayer(Layer* layer, bool inFrame) { 453106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich if (layer->deferredUpdateScheduled && layer->renderer 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && layer->renderNode.get() && layer->renderNode->isRenderable()) { 4558451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes Rect& dirty = layer->dirtyRect; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inFrame) { 458106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich endTiling(); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project debugOverdraw(false, false); 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 462106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich if (CC_UNLIKELY(inFrame || mCaches.drawDeferDisabled)) { 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layer->render(*this); 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layer->defer(*this); 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inFrame) { 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resumeAfterLayer(); 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startTilingCurrentClip(); 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layer->debugDrawUpdate = mCaches.debugLayersUpdates; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layer->hasDrawnSinceUpdate = false; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::updateLayers() { 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If draw deferring is enabled this method will simply defer 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the display list of each individual layer. The layers remain 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the layer updates list which will be cleared by flushLayers(). 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mLayerUpdates.size(); 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (CC_UNLIKELY(mCaches.drawDeferDisabled)) { 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startMark("Layer Updates"); 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startMark("Defer Layer Updates"); 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: it is very important to update the layers in order 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Layer* layer = mLayerUpdates.itemAt(i).get(); 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project updateLayer(layer, false); 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (CC_UNLIKELY(mCaches.drawDeferDisabled)) { 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayerUpdates.clear(); 502106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mRenderState.bindFramebuffer(getTargetFbo()); 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 504106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich endMark(); 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 508106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichvoid OpenGLRenderer::flushLayers() { 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mLayerUpdates.size(); 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startMark("Apply Layer Updates"); 512106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: it is very important to update the layers in order 514106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich for (int i = 0; i < count; i++) { 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayerUpdates.itemAt(i)->flush(); 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayerUpdates.clear(); 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRenderState.bindFramebuffer(getTargetFbo()); 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endMark(); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::pushLayerUpdate(Layer* layer) { 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (layer) { 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we don't introduce duplicates. 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // SortedVector would do this automatically but we need to respect 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the insertion order. The linear search is not an issue since 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // this list is usually very short (typically one item, at most a few) 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = mLayerUpdates.size() - 1; i >= 0; i--) { 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayerUpdates.itemAt(i) == layer) { 533106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich return; 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 535106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich } 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayerUpdates.push_back(layer); 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 539106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::cancelLayerUpdate(Layer* layer) { 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (layer) { 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = mLayerUpdates.size() - 1; i >= 0; i--) { 543106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich if (mLayerUpdates.itemAt(i) == layer) { 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayerUpdates.removeAt(i); 545106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich break; 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::flushLayerUpdates() { 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ATRACE_NAME("Update HW Layers"); 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project syncState(); 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project updateLayers(); 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project flushLayers(); 556106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich // Wait for all the layer updates to be executed 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AutoFence fence; 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::markLayersAsBuildLayers() { 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (size_t i = 0; i < mLayerUpdates.size(); i++) { 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayerUpdates[i]->wasBuildLayered = true; 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// State management 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::onSnapshotRestored(const Snapshot& removed, const Snapshot& restored) { 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool restoreViewport = removed.flags & Snapshot::kFlagIsFboLayer; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool restoreClip = removed.flags & Snapshot::kFlagClipSet; 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool restoreLayer = removed.flags & Snapshot::kFlagIsLayer; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (restoreViewport) { 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRenderState.setViewport(getViewportWidth(), getViewportHeight()); 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (restoreClip) { 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dirtyClip(); 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (restoreLayer) { 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endMark(); // Savelayer 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ATRACE_END(); // SaveLayer 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startMark("ComposeLayer"); 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project composeLayer(removed, restored); 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endMark(); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Layers 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const SkPaint* paint, int flags, const SkPath* convexMask) { 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // force matrix/clip isolation for layer 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project flags |= SkCanvas::kClip_SaveFlag | SkCanvas::kMatrix_SaveFlag; 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int count = saveSnapshot(flags); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!currentSnapshot()->isIgnored()) { 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createLayer(left, top, right, bottom, paint, flags, convexMask); 605708c17b4168404042852e480f25a91a02cf14247Jack Palevich } 606708c17b4168404042852e480f25a91a02cf14247Jack Palevich 607708c17b4168404042852e480f25a91a02cf14247Jack Palevich return count; 608708c17b4168404042852e480f25a91a02cf14247Jack Palevich} 609708c17b4168404042852e480f25a91a02cf14247Jack Palevich 610708c17b4168404042852e480f25a91a02cf14247Jack Palevichvoid OpenGLRenderer::calculateLayerBoundsAndClip(Rect& bounds, Rect& clip, bool fboLayer) { 611708c17b4168404042852e480f25a91a02cf14247Jack Palevich const Rect untransformedBounds(bounds); 612708c17b4168404042852e480f25a91a02cf14247Jack Palevich 613708c17b4168404042852e480f25a91a02cf14247Jack Palevich currentTransform()->mapRect(bounds); 614708c17b4168404042852e480f25a91a02cf14247Jack Palevich 615708c17b4168404042852e480f25a91a02cf14247Jack Palevich // Layers only make sense if they are in the framebuffer's bounds 616708c17b4168404042852e480f25a91a02cf14247Jack Palevich if (bounds.intersect(*currentClipRect())) { 617708c17b4168404042852e480f25a91a02cf14247Jack Palevich // We cannot work with sub-pixels in this case 618708c17b4168404042852e480f25a91a02cf14247Jack Palevich bounds.snapToPixelBoundaries(); 619708c17b4168404042852e480f25a91a02cf14247Jack Palevich 620708c17b4168404042852e480f25a91a02cf14247Jack Palevich // When the layer is not an FBO, we may use glCopyTexImage so we 621708c17b4168404042852e480f25a91a02cf14247Jack Palevich // need to make sure the layer does not extend outside the bounds 622708c17b4168404042852e480f25a91a02cf14247Jack Palevich // of the framebuffer 623708c17b4168404042852e480f25a91a02cf14247Jack Palevich const Snapshot& previous = *(currentSnapshot()->previous); 624708c17b4168404042852e480f25a91a02cf14247Jack Palevich Rect previousViewport(0, 0, previous.getViewportWidth(), previous.getViewportHeight()); 625708c17b4168404042852e480f25a91a02cf14247Jack Palevich if (!bounds.intersect(previousViewport)) { 626708c17b4168404042852e480f25a91a02cf14247Jack Palevich bounds.setEmpty(); 627708c17b4168404042852e480f25a91a02cf14247Jack Palevich } else if (fboLayer) { 628708c17b4168404042852e480f25a91a02cf14247Jack Palevich clip.set(bounds); 629708c17b4168404042852e480f25a91a02cf14247Jack Palevich mat4 inverse; 630708c17b4168404042852e480f25a91a02cf14247Jack Palevich inverse.loadInverse(*currentTransform()); 631708c17b4168404042852e480f25a91a02cf14247Jack Palevich inverse.mapRect(clip); 632708c17b4168404042852e480f25a91a02cf14247Jack Palevich clip.snapToPixelBoundaries(); 633708c17b4168404042852e480f25a91a02cf14247Jack Palevich if (clip.intersect(untransformedBounds)) { 634708c17b4168404042852e480f25a91a02cf14247Jack Palevich clip.translate(-untransformedBounds.left, -untransformedBounds.top); 635708c17b4168404042852e480f25a91a02cf14247Jack Palevich bounds.set(untransformedBounds); 636708c17b4168404042852e480f25a91a02cf14247Jack Palevich } else { 637708c17b4168404042852e480f25a91a02cf14247Jack Palevich clip.setEmpty(); 638708c17b4168404042852e480f25a91a02cf14247Jack Palevich } 639708c17b4168404042852e480f25a91a02cf14247Jack Palevich } 640708c17b4168404042852e480f25a91a02cf14247Jack Palevich } else { 641708c17b4168404042852e480f25a91a02cf14247Jack Palevich bounds.setEmpty(); 642708c17b4168404042852e480f25a91a02cf14247Jack Palevich } 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::updateSnapshotIgnoreForLayer(const Rect& bounds, const Rect& clip, 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool fboLayer, int alpha) { 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bounds.isEmpty() || bounds.getWidth() > mCaches.maxTextureSize || 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bounds.getHeight() > mCaches.maxTextureSize || 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (fboLayer && clip.isEmpty())) { 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSnapshot->empty = fboLayer; 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSnapshot->invisible = mSnapshot->invisible || (alpha <= 0 && fboLayer); 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 654708c17b4168404042852e480f25a91a02cf14247Jack Palevich} 655708c17b4168404042852e480f25a91a02cf14247Jack Palevich 656708c17b4168404042852e480f25a91a02cf14247Jack Palevichint OpenGLRenderer::saveLayerDeferred(float left, float top, float right, float bottom, 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const SkPaint* paint, int flags) { 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int count = saveSnapshot(flags); 659106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!currentSnapshot()->isIgnored() && (flags & SkCanvas::kClipToLayer_SaveFlag)) { 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // initialize the snapshot as though it almost represents an FBO layer so deferred draw 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // operations will be able to store and restore the current clip and transform info, and 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // quick rejection will be correct (for display lists) 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect bounds(left, top, right, bottom); 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect clip; 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project calculateLayerBoundsAndClip(bounds, clip, true); 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project updateSnapshotIgnoreForLayer(bounds, clip, true, getAlphaDirect(paint)); 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!currentSnapshot()->isIgnored()) { 671106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mSnapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 672106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich mSnapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom); 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSnapshot->initializeViewport(bounds.getWidth(), bounds.getHeight()); 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSnapshot->roundRectClipState = NULL; 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return count; 679106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich} 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layers are viewed by Skia are slightly different than layers in image editing 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * programs (for instance.) When a layer is created, previously created layers 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and the frame buffer still receive every drawing command. For instance, if a 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layer is created and a shape intersecting the bounds of the layers and the 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * framebuffer is draw, the shape will be drawn on both (unless the layer was 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A way to implement layers is to create an FBO for each layer, backed by an RGBA 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * texture. Unfortunately, this is inefficient as it requires every primitive to 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be drawn n + 1 times, where n is the number of active layers. In practice this 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * means, for every primitive: 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * - Switch active frame buffer 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * - Change viewport, clip and projection matrix 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * - Issue the drawing 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Switching rendering target n + 1 times per drawn primitive is extremely costly. 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * To avoid this, layers are implemented in a different way here, at least in the 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * general case. FBOs are used, as an optimization, when the "clip to layer" flag 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is set. When this flag is set we can redirect all drawing operations into a 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * single FBO. 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This implementation relies on the frame buffer being at least RGBA 8888. When 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a layer is created, only a texture is created, not an FBO. The content of the 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * frame buffer contained within the layer's bounds is copied into this texture 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame 707106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich * buffer and drawing continues as normal. This technique therefore treats the 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * frame buffer as a scratch buffer for the layers. 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * To compose the layers back onto the frame buffer, each layer texture 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (containing the original frame buffer data) is drawn as a simple quad over 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the frame buffer. The trick is that the quad is set as the composition 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * destination in the blending equation, and the frame buffer becomes the source 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the composition. 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Drawing layers with an alpha value requires an extra step before composition. 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * An empty quad is drawn over the layer's region in the frame buffer. This quad 718a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 719a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * quad is used to multiply the colors in the frame buffer. This is achieved by 720a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * changing the GL blend functions for the GL_FUNC_ADD blend equation to 721a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * GL_ZERO, GL_SRC_ALPHA. 722a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * 723a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * Because glCopyTexImage2D() can be slow, an alternative implementation might 724a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * be use to draw a single clipped layer. The implementation described above 725a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * is correct in every case. 726a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * 727a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * (1) The frame buffer is actually not cleared right away. To allow the GPU 728a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * to potentially optimize series of calls to glCopyTexImage2D, the frame 729a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * buffer is left untouched until the first drawing operation. Only when 730a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * something actually gets drawn are the layers regions cleared. 731a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich */ 732a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevichbool OpenGLRenderer::createLayer(float left, float top, float right, float bottom, 733a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich const SkPaint* paint, int flags, const SkPath* convexMask) { 734a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top); 735a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 736a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 737a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag; 738a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 739a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Window coordinates of the layer 740a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich Rect clip; 741a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich Rect bounds(left, top, right, bottom); 742a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich calculateLayerBoundsAndClip(bounds, clip, fboLayer); 743a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich updateSnapshotIgnoreForLayer(bounds, clip, fboLayer, getAlphaDirect(paint)); 744a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 745a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Bail out if we won't draw in this snapshot 746a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (currentSnapshot()->isIgnored()) { 747a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return false; 748a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 749a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 750a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mCaches.activeTexture(0); 751a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich Layer* layer = mCaches.layerCache.get(mRenderState, bounds.getWidth(), bounds.getHeight()); 752a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (!layer) { 753a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return false; 754a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 755a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 756a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setPaint(paint); 757a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->layer.set(bounds); 758a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->texCoords.set(0.0f, bounds.getHeight() / float(layer->getHeight()), 759a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich bounds.getWidth() / float(layer->getWidth()), 0.0f); 760a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 761a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setBlend(true); 762a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setDirty(false); 763a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setConvexMask(convexMask); // note: the mask must be cleared before returning to the cache 764a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 765a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Save the layer in the snapshot 766a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->flags |= Snapshot::kFlagIsLayer; 767a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->layer = layer; 768a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 769a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich ATRACE_FORMAT_BEGIN("%ssaveLayer %ux%u", 770a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich fboLayer ? "" : "unclipped ", 771a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->getWidth(), layer->getHeight()); 772a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich startMark("SaveLayer"); 773a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (fboLayer) { 774a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return createFboLayer(layer, bounds, clip); 775a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } else { 776a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Copy the framebuffer into the layer 777a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->bindTexture(); 778a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (!bounds.isEmpty()) { 779a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (layer->isEmpty()) { 780a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Workaround for some GL drivers. When reading pixels lying outside 781a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // of the window we should get undefined values for those pixels. 782a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Unfortunately some drivers will turn the entire target texture black 783a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // when reading outside of the window. 784a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, layer->getWidth(), layer->getHeight(), 785a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); 786a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setEmpty(false); 787a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 7888451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 789a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 790a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich bounds.left, getViewportHeight() - bounds.bottom, 791a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich bounds.getWidth(), bounds.getHeight()); 7928451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 793a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Enqueue the buffer coordinates to clear the corresponding region later 794a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mLayers.push(new Rect(bounds)); 795a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 796a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 797a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 798a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return true; 799a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich} 800a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 801a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevichbool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, Rect& clip) { 802a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->clipRect.set(clip); 803a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setFbo(mCaches.fboCache.get()); 804a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 805a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->region = &mSnapshot->layer->region; 806a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->flags |= Snapshot::kFlagFboTarget | Snapshot::kFlagIsFboLayer; 807a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->fbo = layer->getFbo(); 808a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 809a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom); 810a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->initializeViewport(bounds.getWidth(), bounds.getHeight()); 811a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->roundRectClipState = NULL; 812a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 813a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich endTiling(); 814a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich debugOverdraw(false, false); 815a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Bind texture to FBO 816a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mRenderState.bindFramebuffer(layer->getFbo()); 817a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->bindTexture(); 818a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 819a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Initialize the texture if needed 820a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (layer->isEmpty()) { 821a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->allocateTexture(); 822a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setEmpty(false); 823a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 824a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 825a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 826a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->getTexture(), 0); 827a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 8288451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes // Expand the startTiling region by 1 829a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich startTilingCurrentClip(true, true); 830a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 831a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Clear the FBO, expand the clear region by 1 to get nice bilinear filtering 832a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mCaches.enableScissor(); 833a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mCaches.setScissor(clip.left - 1.0f, bounds.getHeight() - clip.bottom - 1.0f, 834a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich clip.getWidth() + 2.0f, clip.getHeight() + 2.0f); 8358451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes glClear(GL_COLOR_BUFFER_BIT); 836a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 8378451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes dirtyClip(); 838a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 839a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Change the ortho projection 840a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mRenderState.setViewport(bounds.getWidth(), bounds.getHeight()); 841a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return true; 842a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich} 843a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 844a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich/** 845a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * Read the documentation of createLayer() before doing anything in this method. 846a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich */ 847a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevichvoid OpenGLRenderer::composeLayer(const Snapshot& removed, const Snapshot& restored) { 848a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (!removed.layer) { 849a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich ALOGE("Attempting to compose a layer that does not exist"); 850a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return; 851a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 852a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 853a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich Layer* layer = removed.layer; 854a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich const Rect& rect = layer->layer; 855a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich const bool fboLayer = removed.flags & Snapshot::kFlagIsFboLayer; 856a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 857a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich bool clipRequired = false; 858a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich calculateQuickRejectForScissor(rect.left, rect.top, rect.right, rect.bottom, 859a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich &clipRequired, NULL, false); // safely ignore return, should never be rejected 8608451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes mCaches.setScissorEnabled(mScissorOptimizationDisabled || clipRequired); 861a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 8628451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes if (fboLayer) { 863a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich endTiling(); 864a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 865a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Detach the texture from the FBO 866a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 867a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 868a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->removeFbo(false); 869a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 870a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Unbind current FBO and restore previous one 871a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mRenderState.bindFramebuffer(restored.fbo); 872a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich debugOverdraw(true, false); 873a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 874a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich startTilingCurrentClip(); 875a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 876a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 877a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (!fboLayer && layer->getAlpha() < 255) { 878a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich SkPaint layerPaint; 879a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layerPaint.setAlpha(layer->getAlpha()); 880a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layerPaint.setXfermodeMode(SkXfermode::kDstIn_Mode); 881a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layerPaint.setColorFilter(layer->getColorFilter()); 882a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 883a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich drawColorRect(rect.left, rect.top, rect.right, rect.bottom, &layerPaint, true); 884a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Required below, composeLayerRect() will divide by 255 885a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setAlpha(255); 886a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 887a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 8888451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes mCaches.unbindMeshBuffer(); 889a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 890a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mCaches.activeTexture(0); 891a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 892a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // When the layer is stored in an FBO, we can save a bit of fillrate by 893a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // drawing only the dirty region 894a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (fboLayer) { 895a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich dirtyLayer(rect.left, rect.top, rect.right, rect.bottom, *restored.transform); 896a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich composeLayerRegion(layer, rect); 8978451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes } else if (!rect.isEmpty()) { 898a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich dirtyLayer(rect.left, rect.top, rect.right, rect.bottom); 8998451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 900a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich save(0); 901a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // the layer contains screen buffer content that shouldn't be alpha modulated 902a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // (and any necessary alpha modulation was handled drawing into the layer) 903a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich mSnapshot->alpha = 1.0f; 904a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich composeLayerRect(layer, rect, true); 905a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich restore(); 906a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 907a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 908a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich dirtyClip(); 909a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 910a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // Failing to add the layer to the cache should happen only if the layer is too large 911a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setConvexMask(NULL); 912a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (!mCaches.layerCache.put(layer)) { 913a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich LAYER_LOGD("Deleting layer"); 914a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->decStrong(0); 915a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 916a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich} 917a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 918a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevichvoid OpenGLRenderer::drawTextureLayer(Layer* layer, const Rect& rect) { 919a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich float alpha = getLayerAlpha(layer); 920a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 9218451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes setupDraw(); 922a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (layer->getRenderTarget() == GL_TEXTURE_2D) { 923a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawWithTexture(); 924a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } else { 925a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawWithExternalTexture(); 926a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 927a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawTextureTransform(); 928a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawColor(alpha, alpha, alpha, alpha); 929a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawColorFilter(layer->getColorFilter()); 9308451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes setupDrawBlending(layer); 931a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawProgram(); 9328451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes setupDrawPureColorUniforms(); 933a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawColorFilterUniforms(layer->getColorFilter()); 934a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (layer->getRenderTarget() == GL_TEXTURE_2D) { 935a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawTexture(layer->getTexture()); 936a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } else { 937a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawExternalTexture(layer->getTexture()); 938a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 939a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (currentTransform()->isPureTranslate() && 940a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich !layer->getForceFilter() && 941a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->getWidth() == (uint32_t) rect.getWidth() && 942a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->getHeight() == (uint32_t) rect.getHeight()) { 943a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich const float x = (int) floorf(rect.left + currentTransform()->getTranslateX() + 0.5f); 944a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich const float y = (int) floorf(rect.top + currentTransform()->getTranslateY() + 0.5f); 945a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 946a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setFilter(GL_NEAREST); 947a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawModelView(kModelViewMode_TranslateAndScale, false, 948a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich x, y, x + rect.getWidth(), y + rect.getHeight(), true); 949a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } else { 9508451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes layer->setFilter(GL_LINEAR); 951a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawModelView(kModelViewMode_TranslateAndScale, false, 952a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich rect.left, rect.top, rect.right, rect.bottom); 953a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 954a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawTextureTransformUniforms(layer->getTexTransform()); 955a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich setupDrawMesh(&mMeshVertices[0].x, &mMeshVertices[0].u); 956a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 957a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 958a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich} 959a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 960a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevichvoid OpenGLRenderer::composeLayerRect(Layer* layer, const Rect& rect, bool swap) { 961a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (layer->isTextureLayer()) { 962a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich EVENT_LOGD("composeTextureLayerRect"); 963a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 964a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich drawTextureLayer(layer, rect); 965a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 9668451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes } else { 967a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich EVENT_LOGD("composeHardwareLayerRect"); 968a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich const Rect& texCoords = layer->texCoords; 969a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich resetDrawTextureTexCoords(texCoords.left, texCoords.top, 970a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich texCoords.right, texCoords.bottom); 971a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 972a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich float x = rect.left; 973a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich float y = rect.top; 974a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich bool simpleTransform = currentTransform()->isPureTranslate() && 975a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->getWidth() == (uint32_t) rect.getWidth() && 976a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->getHeight() == (uint32_t) rect.getHeight(); 977a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 978a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (simpleTransform) { 979a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich // When we're swapping, the layer is already in screen coordinates 980a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (!swap) { 981a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich x = (int) floorf(rect.left + currentTransform()->getTranslateX() + 0.5f); 982a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich y = (int) floorf(rect.top + currentTransform()->getTranslateY() + 0.5f); 9838451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes } 984a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 985a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setFilter(GL_NEAREST, true); 986a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } else { 987a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->setFilter(GL_LINEAR, true); 988a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 989a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 990a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich SkPaint layerPaint; 991a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layerPaint.setAlpha(getLayerAlpha(layer) * 255); 992a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layerPaint.setXfermodeMode(layer->getMode()); 993a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layerPaint.setColorFilter(layer->getColorFilter()); 994a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 995a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich bool blend = layer->isBlend() || getLayerAlpha(layer) < 1.0f; 996a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich drawTextureMesh(x, y, x + rect.getWidth(), y + rect.getHeight(), 997a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich layer->getTexture(), &layerPaint, blend, 998a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich &mMeshVertices[0].x, &mMeshVertices[0].u, 999a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich GL_TRIANGLE_STRIP, gMeshCount, swap, swap || simpleTransform); 10008451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 1001a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 1002a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 1003a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich} 1004a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 1005a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich/** 1006a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * Issues the command X, and if we're composing a save layer to the fbo or drawing a newly updated 1007a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * hardware layer with overdraw debug on, draws again to the stencil only, so that these draw 1008a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich * operations are correctly counted twice for overdraw. NOTE: assumes composeLayerRegion only used 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by saveLayer's restore 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define DRAW_DOUBLE_STENCIL_IF(COND, DRAW_COMMAND) { \ 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project DRAW_COMMAND; \ 1013106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich if (CC_UNLIKELY(mCaches.debugOverdraw && getTargetFbo() == 0 && COND)) { \ 1014106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); \ 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project DRAW_COMMAND; \ 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); \ 10178451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes } \ 1018106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich } 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1020106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich#define DRAW_DOUBLE_STENCIL(DRAW_COMMAND) DRAW_DOUBLE_STENCIL_IF(true, DRAW_COMMAND) 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// This class is purely for inspection. It inherits from SkShader, but Skia does not know how to 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// use it. The OpenGLRenderer will look at it to find its Layer and whether it is opaque. 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectclass LayerShader : public SkShader { 1025106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevichpublic: 1026106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich LayerShader(Layer* layer, const SkMatrix* localMatrix) 1027106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich : INHERITED(localMatrix) 1028106006cbdedc79ce8746ca5449610c69a2f69655Jack Palevich , mLayer(layer) { 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1031a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich virtual bool asACustomShader(void** data) const { 1032a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich if (data) { 1033a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich *data = static_cast<void*>(mLayer); 1034a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 1035a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return true; 1036a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 1037a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 1038a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich virtual bool isOpaque() const { 1039a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich return !mLayer->isBlend(); 1040a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich } 1041a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich 1042a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevichprotected: 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project virtual void shadeSpan(int x, int y, SkPMColor[], int count) { 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOG_ALWAYS_FATAL("LayerShader should never be drawn with raster backend."); 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project virtual void flatten(SkWriteBuffer&) const { 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOG_ALWAYS_FATAL("LayerShader should never be flattened."); 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10508451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 10518451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes virtual Factory getFactory() const { 10528451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes LOG_ALWAYS_FATAL("LayerShader should never be created from a stream."); 10538451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes return NULL; 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectprivate: 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Unowned. 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Layer* mLayer; 1058a6276fdd4253c3a7150ab675678c750473ab6c45Jack Palevich typedef SkShader INHERITED; 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) { 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (CC_UNLIKELY(layer->region.isEmpty())) return; // nothing to draw 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (layer->getConvexMask()) { 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(SkCanvas::kClip_SaveFlag | SkCanvas::kMatrix_SaveFlag); 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // clip to the area of the layer the mask can be larger 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clipRect(rect.left, rect.top, rect.right, rect.bottom, SkRegion::kIntersect_Op); 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkPaint paint; 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setAntiAlias(true); 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.setColor(SkColorSetARGB(int(getLayerAlpha(layer) * 255), 0, 0, 0)); 1073 1074 // create LayerShader to map SaveLayer content into subsequent draw 1075 SkMatrix shaderMatrix; 1076 shaderMatrix.setTranslate(rect.left, rect.bottom); 1077 shaderMatrix.preScale(1, -1); 1078 LayerShader layerShader(layer, &shaderMatrix); 1079 paint.setShader(&layerShader); 1080 1081 // Since the drawing primitive is defined in local drawing space, 1082 // we don't need to modify the draw matrix 1083 const SkPath* maskPath = layer->getConvexMask(); 1084 DRAW_DOUBLE_STENCIL(drawConvexPath(*maskPath, &paint)); 1085 1086 paint.setShader(NULL); 1087 restore(); 1088 1089 return; 1090 } 1091 1092 if (layer->region.isRect()) { 1093 layer->setRegionAsRect(); 1094 1095 DRAW_DOUBLE_STENCIL(composeLayerRect(layer, layer->regionRect)); 1096 1097 layer->region.clear(); 1098 return; 1099 } 1100 1101 EVENT_LOGD("composeLayerRegion"); 1102 // standard Region based draw 1103 size_t count; 1104 const android::Rect* rects; 1105 Region safeRegion; 1106 if (CC_LIKELY(hasRectToRectTransform())) { 1107 rects = layer->region.getArray(&count); 1108 } else { 1109 safeRegion = Region::createTJunctionFreeRegion(layer->region); 1110 rects = safeRegion.getArray(&count); 1111 } 1112 1113 const float alpha = getLayerAlpha(layer); 1114 const float texX = 1.0f / float(layer->getWidth()); 1115 const float texY = 1.0f / float(layer->getHeight()); 1116 const float height = rect.getHeight(); 1117 1118 setupDraw(); 1119 1120 // We must get (and therefore bind) the region mesh buffer 1121 // after we setup drawing in case we need to mess with the 1122 // stencil buffer in setupDraw() 1123 TextureVertex* mesh = mCaches.getRegionMesh(); 1124 uint32_t numQuads = 0; 1125 1126 setupDrawWithTexture(); 1127 setupDrawColor(alpha, alpha, alpha, alpha); 1128 setupDrawColorFilter(layer->getColorFilter()); 1129 setupDrawBlending(layer); 1130 setupDrawProgram(); 1131 setupDrawDirtyRegionsDisabled(); 1132 setupDrawPureColorUniforms(); 1133 setupDrawColorFilterUniforms(layer->getColorFilter()); 1134 setupDrawTexture(layer->getTexture()); 1135 if (currentTransform()->isPureTranslate()) { 1136 const float x = (int) floorf(rect.left + currentTransform()->getTranslateX() + 0.5f); 1137 const float y = (int) floorf(rect.top + currentTransform()->getTranslateY() + 0.5f); 1138 1139 layer->setFilter(GL_NEAREST); 1140 setupDrawModelView(kModelViewMode_Translate, false, 1141 x, y, x + rect.getWidth(), y + rect.getHeight(), true); 1142 } else { 1143 layer->setFilter(GL_LINEAR); 1144 setupDrawModelView(kModelViewMode_Translate, false, 1145 rect.left, rect.top, rect.right, rect.bottom); 1146 } 1147 setupDrawMeshIndices(&mesh[0].x, &mesh[0].u); 1148 1149 for (size_t i = 0; i < count; i++) { 1150 const android::Rect* r = &rects[i]; 1151 1152 const float u1 = r->left * texX; 1153 const float v1 = (height - r->top) * texY; 1154 const float u2 = r->right * texX; 1155 const float v2 = (height - r->bottom) * texY; 1156 1157 // TODO: Reject quads outside of the clip 1158 TextureVertex::set(mesh++, r->left, r->top, u1, v1); 1159 TextureVertex::set(mesh++, r->right, r->top, u2, v1); 1160 TextureVertex::set(mesh++, r->left, r->bottom, u1, v2); 1161 TextureVertex::set(mesh++, r->right, r->bottom, u2, v2); 1162 1163 numQuads++; 1164 1165 if (numQuads >= gMaxNumberOfQuads) { 1166 DRAW_DOUBLE_STENCIL(glDrawElements(GL_TRIANGLES, numQuads * 6, 1167 GL_UNSIGNED_SHORT, NULL)); 1168 numQuads = 0; 1169 mesh = mCaches.getRegionMesh(); 1170 } 1171 } 1172 1173 if (numQuads > 0) { 1174 DRAW_DOUBLE_STENCIL(glDrawElements(GL_TRIANGLES, numQuads * 6, 1175 GL_UNSIGNED_SHORT, NULL)); 1176 } 1177 1178#if DEBUG_LAYERS_AS_REGIONS 1179 drawRegionRectsDebug(layer->region); 1180#endif 1181 1182 layer->region.clear(); 1183} 1184 1185#if DEBUG_LAYERS_AS_REGIONS 1186void OpenGLRenderer::drawRegionRectsDebug(const Region& region) { 1187 size_t count; 1188 const android::Rect* rects = region.getArray(&count); 1189 1190 uint32_t colors[] = { 1191 0x7fff0000, 0x7f00ff00, 1192 0x7f0000ff, 0x7fff00ff, 1193 }; 1194 1195 int offset = 0; 1196 int32_t top = rects[0].top; 1197 1198 for (size_t i = 0; i < count; i++) { 1199 if (top != rects[i].top) { 1200 offset ^= 0x2; 1201 top = rects[i].top; 1202 } 1203 1204 SkPaint paint; 1205 paint.setColor(colors[offset + (i & 0x1)]); 1206 Rect r(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom); 1207 drawColorRect(r.left, r.top, r.right, r.bottom, paint); 1208 } 1209} 1210#endif 1211 1212void OpenGLRenderer::drawRegionRects(const SkRegion& region, const SkPaint& paint, bool dirty) { 1213 Vector<float> rects; 1214 1215 SkRegion::Iterator it(region); 1216 while (!it.done()) { 1217 const SkIRect& r = it.rect(); 1218 rects.push(r.fLeft); 1219 rects.push(r.fTop); 1220 rects.push(r.fRight); 1221 rects.push(r.fBottom); 1222 it.next(); 1223 } 1224 1225 drawColorRects(rects.array(), rects.size(), &paint, true, dirty, false); 1226} 1227 1228void OpenGLRenderer::dirtyLayer(const float left, const float top, 1229 const float right, const float bottom, const mat4 transform) { 1230 if (hasLayer()) { 1231 Rect bounds(left, top, right, bottom); 1232 transform.mapRect(bounds); 1233 dirtyLayerUnchecked(bounds, getRegion()); 1234 } 1235} 1236 1237void OpenGLRenderer::dirtyLayer(const float left, const float top, 1238 const float right, const float bottom) { 1239 if (hasLayer()) { 1240 Rect bounds(left, top, right, bottom); 1241 dirtyLayerUnchecked(bounds, getRegion()); 1242 } 1243} 1244 1245void OpenGLRenderer::dirtyLayerUnchecked(Rect& bounds, Region* region) { 1246 if (bounds.intersect(*currentClipRect())) { 1247 bounds.snapToPixelBoundaries(); 1248 android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 1249 if (!dirty.isEmpty()) { 1250 region->orSelf(dirty); 1251 } 1252 } 1253} 1254 1255void OpenGLRenderer::issueIndexedQuadDraw(Vertex* mesh, GLsizei quadsCount) { 1256 GLsizei elementsCount = quadsCount * 6; 1257 while (elementsCount > 0) { 1258 GLsizei drawCount = min(elementsCount, (GLsizei) gMaxNumberOfQuads * 6); 1259 1260 setupDrawIndexedVertices(&mesh[0].x); 1261 glDrawElements(GL_TRIANGLES, drawCount, GL_UNSIGNED_SHORT, NULL); 1262 1263 elementsCount -= drawCount; 1264 // Though there are 4 vertices in a quad, we use 6 indices per 1265 // quad to draw with GL_TRIANGLES 1266 mesh += (drawCount / 6) * 4; 1267 } 1268} 1269 1270void OpenGLRenderer::clearLayerRegions() { 1271 const size_t count = mLayers.size(); 1272 if (count == 0) return; 1273 1274 if (!currentSnapshot()->isIgnored()) { 1275 EVENT_LOGD("clearLayerRegions"); 1276 // Doing several glScissor/glClear here can negatively impact 1277 // GPUs with a tiler architecture, instead we draw quads with 1278 // the Clear blending mode 1279 1280 // The list contains bounds that have already been clipped 1281 // against their initial clip rect, and the current clip 1282 // is likely different so we need to disable clipping here 1283 bool scissorChanged = mCaches.disableScissor(); 1284 1285 Vertex mesh[count * 4]; 1286 Vertex* vertex = mesh; 1287 1288 for (uint32_t i = 0; i < count; i++) { 1289 Rect* bounds = mLayers.itemAt(i); 1290 1291 Vertex::set(vertex++, bounds->left, bounds->top); 1292 Vertex::set(vertex++, bounds->right, bounds->top); 1293 Vertex::set(vertex++, bounds->left, bounds->bottom); 1294 Vertex::set(vertex++, bounds->right, bounds->bottom); 1295 1296 delete bounds; 1297 } 1298 // We must clear the list of dirty rects before we 1299 // call setupDraw() to prevent stencil setup to do 1300 // the same thing again 1301 mLayers.clear(); 1302 1303 SkPaint clearPaint; 1304 clearPaint.setXfermodeMode(SkXfermode::kClear_Mode); 1305 1306 setupDraw(false); 1307 setupDrawColor(0.0f, 0.0f, 0.0f, 1.0f); 1308 setupDrawBlending(&clearPaint, true); 1309 setupDrawProgram(); 1310 setupDrawPureColorUniforms(); 1311 setupDrawModelView(kModelViewMode_Translate, false, 1312 0.0f, 0.0f, 0.0f, 0.0f, true); 1313 1314 issueIndexedQuadDraw(&mesh[0], count); 1315 1316 if (scissorChanged) mCaches.enableScissor(); 1317 } else { 1318 for (uint32_t i = 0; i < count; i++) { 1319 delete mLayers.itemAt(i); 1320 } 1321 mLayers.clear(); 1322 } 1323} 1324 1325/////////////////////////////////////////////////////////////////////////////// 1326// State Deferral 1327/////////////////////////////////////////////////////////////////////////////// 1328 1329bool OpenGLRenderer::storeDisplayState(DeferredDisplayState& state, int stateDeferFlags) { 1330 const Rect* currentClip = currentClipRect(); 1331 const mat4* currentMatrix = currentTransform(); 1332 1333 if (stateDeferFlags & kStateDeferFlag_Draw) { 1334 // state has bounds initialized in local coordinates 1335 if (!state.mBounds.isEmpty()) { 1336 currentMatrix->mapRect(state.mBounds); 1337 Rect clippedBounds(state.mBounds); 1338 // NOTE: if we ever want to use this clipping info to drive whether the scissor 1339 // is used, it should more closely duplicate the quickReject logic (in how it uses 1340 // snapToPixelBoundaries) 1341 1342 if(!clippedBounds.intersect(*currentClip)) { 1343 // quick rejected 1344 return true; 1345 } 1346 1347 state.mClipSideFlags = kClipSide_None; 1348 if (!currentClip->contains(state.mBounds)) { 1349 int& flags = state.mClipSideFlags; 1350 // op partially clipped, so record which sides are clipped for clip-aware merging 1351 if (currentClip->left > state.mBounds.left) flags |= kClipSide_Left; 1352 if (currentClip->top > state.mBounds.top) flags |= kClipSide_Top; 1353 if (currentClip->right < state.mBounds.right) flags |= kClipSide_Right; 1354 if (currentClip->bottom < state.mBounds.bottom) flags |= kClipSide_Bottom; 1355 } 1356 state.mBounds.set(clippedBounds); 1357 } else { 1358 // Empty bounds implies size unknown. Label op as conservatively clipped to disable 1359 // overdraw avoidance (since we don't know what it overlaps) 1360 state.mClipSideFlags = kClipSide_ConservativeFull; 1361 state.mBounds.set(*currentClip); 1362 } 1363 } 1364 1365 state.mClipValid = (stateDeferFlags & kStateDeferFlag_Clip); 1366 if (state.mClipValid) { 1367 state.mClip.set(*currentClip); 1368 } 1369 1370 // Transform, drawModifiers, and alpha always deferred, since they are used by state operations 1371 // (Note: saveLayer/restore use colorFilter and alpha, so we just save restore everything) 1372 state.mMatrix.load(*currentMatrix); 1373 state.mDrawModifiers = mDrawModifiers; 1374 state.mAlpha = currentSnapshot()->alpha; 1375 1376 // always store/restore, since it's just a pointer 1377 state.mRoundRectClipState = currentSnapshot()->roundRectClipState; 1378 return false; 1379} 1380 1381void OpenGLRenderer::restoreDisplayState(const DeferredDisplayState& state, bool skipClipRestore) { 1382 setMatrix(state.mMatrix); 1383 mSnapshot->alpha = state.mAlpha; 1384 mDrawModifiers = state.mDrawModifiers; 1385 mSnapshot->roundRectClipState = state.mRoundRectClipState; 1386 1387 if (state.mClipValid && !skipClipRestore) { 1388 mSnapshot->setClip(state.mClip.left, state.mClip.top, 1389 state.mClip.right, state.mClip.bottom); 1390 dirtyClip(); 1391 } 1392} 1393 1394/** 1395 * Merged multidraw (such as in drawText and drawBitmaps rely on the fact that no clipping is done 1396 * in the draw path. Instead, clipping is done ahead of time - either as a single clip rect (when at 1397 * least one op is clipped), or disabled entirely (because no merged op is clipped) 1398 * 1399 * This method should be called when restoreDisplayState() won't be restoring the clip 1400 */ 1401void OpenGLRenderer::setupMergedMultiDraw(const Rect* clipRect) { 1402 if (clipRect != NULL) { 1403 mSnapshot->setClip(clipRect->left, clipRect->top, clipRect->right, clipRect->bottom); 1404 } else { 1405 mSnapshot->setClip(0, 0, getWidth(), getHeight()); 1406 } 1407 dirtyClip(); 1408 mCaches.setScissorEnabled(clipRect != NULL || mScissorOptimizationDisabled); 1409} 1410 1411/////////////////////////////////////////////////////////////////////////////// 1412// Clipping 1413/////////////////////////////////////////////////////////////////////////////// 1414 1415void OpenGLRenderer::setScissorFromClip() { 1416 Rect clip(*currentClipRect()); 1417 clip.snapToPixelBoundaries(); 1418 1419 if (mCaches.setScissor(clip.left, getViewportHeight() - clip.bottom, 1420 clip.getWidth(), clip.getHeight())) { 1421 mDirtyClip = false; 1422 } 1423} 1424 1425void OpenGLRenderer::ensureStencilBuffer() { 1426 // Thanks to the mismatch between EGL and OpenGL ES FBO we 1427 // cannot attach a stencil buffer to fbo0 dynamically. Let's 1428 // just hope we have one when hasLayer() returns false. 1429 if (hasLayer()) { 1430 attachStencilBufferToLayer(currentSnapshot()->layer); 1431 } 1432} 1433 1434void OpenGLRenderer::attachStencilBufferToLayer(Layer* layer) { 1435 // The layer's FBO is already bound when we reach this stage 1436 if (!layer->getStencilRenderBuffer()) { 1437 // GL_QCOM_tiled_rendering doesn't like it if a renderbuffer 1438 // is attached after we initiated tiling. We must turn it off, 1439 // attach the new render buffer then turn tiling back on 1440 endTiling(); 1441 1442 RenderBuffer* buffer = mCaches.renderBufferCache.get( 1443 Stencil::getSmallestStencilFormat(), layer->getWidth(), layer->getHeight()); 1444 layer->setStencilRenderBuffer(buffer); 1445 1446 startTiling(layer->clipRect, layer->layer.getHeight()); 1447 } 1448} 1449 1450void OpenGLRenderer::setStencilFromClip() { 1451 if (!mCaches.debugOverdraw) { 1452 if (!currentSnapshot()->clipRegion->isEmpty()) { 1453 EVENT_LOGD("setStencilFromClip - enabling"); 1454 1455 // NOTE: The order here is important, we must set dirtyClip to false 1456 // before any draw call to avoid calling back into this method 1457 mDirtyClip = false; 1458 1459 ensureStencilBuffer(); 1460 1461 mCaches.stencil.enableWrite(); 1462 1463 // Clear and update the stencil, but first make sure we restrict drawing 1464 // to the region's bounds 1465 bool resetScissor = mCaches.enableScissor(); 1466 if (resetScissor) { 1467 // The scissor was not set so we now need to update it 1468 setScissorFromClip(); 1469 } 1470 mCaches.stencil.clear(); 1471 1472 // stash and disable the outline clip state, since stencil doesn't account for outline 1473 bool storedSkipOutlineClip = mSkipOutlineClip; 1474 mSkipOutlineClip = true; 1475 1476 SkPaint paint; 1477 paint.setColor(SK_ColorBLACK); 1478 paint.setXfermodeMode(SkXfermode::kSrc_Mode); 1479 1480 // NOTE: We could use the region contour path to generate a smaller mesh 1481 // Since we are using the stencil we could use the red book path 1482 // drawing technique. It might increase bandwidth usage though. 1483 1484 // The last parameter is important: we are not drawing in the color buffer 1485 // so we don't want to dirty the current layer, if any 1486 drawRegionRects(*(currentSnapshot()->clipRegion), paint, false); 1487 if (resetScissor) mCaches.disableScissor(); 1488 mSkipOutlineClip = storedSkipOutlineClip; 1489 1490 mCaches.stencil.enableTest(); 1491 1492 // Draw the region used to generate the stencil if the appropriate debug 1493 // mode is enabled 1494 if (mCaches.debugStencilClip == Caches::kStencilShowRegion) { 1495 paint.setColor(0x7f0000ff); 1496 paint.setXfermodeMode(SkXfermode::kSrcOver_Mode); 1497 drawRegionRects(*(currentSnapshot()->clipRegion), paint); 1498 } 1499 } else { 1500 EVENT_LOGD("setStencilFromClip - disabling"); 1501 mCaches.stencil.disable(); 1502 } 1503 } 1504} 1505 1506/** 1507 * Returns false and sets scissor enable based upon bounds if drawing won't be clipped out. 1508 * 1509 * @param paint if not null, the bounds will be expanded to account for stroke depending on paint 1510 * style, and tessellated AA ramp 1511 */ 1512bool OpenGLRenderer::quickRejectSetupScissor(float left, float top, float right, float bottom, 1513 const SkPaint* paint) { 1514 bool snapOut = paint && paint->isAntiAlias(); 1515 1516 if (paint && paint->getStyle() != SkPaint::kFill_Style) { 1517 float outset = paint->getStrokeWidth() * 0.5f; 1518 left -= outset; 1519 top -= outset; 1520 right += outset; 1521 bottom += outset; 1522 } 1523 1524 bool clipRequired = false; 1525 bool roundRectClipRequired = false; 1526 if (calculateQuickRejectForScissor(left, top, right, bottom, 1527 &clipRequired, &roundRectClipRequired, snapOut)) { 1528 return true; 1529 } 1530 1531 // not quick rejected, so enable the scissor if clipRequired 1532 mCaches.setScissorEnabled(mScissorOptimizationDisabled || clipRequired); 1533 mSkipOutlineClip = !roundRectClipRequired; 1534 return false; 1535} 1536 1537void OpenGLRenderer::debugClip() { 1538#if DEBUG_CLIP_REGIONS 1539 if (!currentSnapshot()->clipRegion->isEmpty()) { 1540 SkPaint paint; 1541 paint.setColor(0x7f00ff00); 1542 drawRegionRects(*(currentSnapshot()->clipRegion, paint); 1543 1544 } 1545#endif 1546} 1547 1548/////////////////////////////////////////////////////////////////////////////// 1549// Drawing commands 1550/////////////////////////////////////////////////////////////////////////////// 1551 1552void OpenGLRenderer::setupDraw(bool clearLayer) { 1553 // TODO: It would be best if we could do this before quickRejectSetupScissor() 1554 // changes the scissor test state 1555 if (clearLayer) clearLayerRegions(); 1556 // Make sure setScissor & setStencil happen at the beginning of 1557 // this method 1558 if (mDirtyClip) { 1559 if (mCaches.scissorEnabled) { 1560 setScissorFromClip(); 1561 } 1562 1563 setStencilFromClip(); 1564 } 1565 1566 mDescription.reset(); 1567 1568 mSetShaderColor = false; 1569 mColorSet = false; 1570 mColorA = mColorR = mColorG = mColorB = 0.0f; 1571 mTextureUnit = 0; 1572 mTrackDirtyRegions = true; 1573 1574 // Enable debug highlight when what we're about to draw is tested against 1575 // the stencil buffer and if stencil highlight debugging is on 1576 mDescription.hasDebugHighlight = !mCaches.debugOverdraw && 1577 mCaches.debugStencilClip == Caches::kStencilShowHighlight && 1578 mCaches.stencil.isTestEnabled(); 1579} 1580 1581void OpenGLRenderer::setupDrawWithTexture(bool isAlpha8) { 1582 mDescription.hasTexture = true; 1583 mDescription.hasAlpha8Texture = isAlpha8; 1584} 1585 1586void OpenGLRenderer::setupDrawWithTextureAndColor(bool isAlpha8) { 1587 mDescription.hasTexture = true; 1588 mDescription.hasColors = true; 1589 mDescription.hasAlpha8Texture = isAlpha8; 1590} 1591 1592void OpenGLRenderer::setupDrawWithExternalTexture() { 1593 mDescription.hasExternalTexture = true; 1594} 1595 1596void OpenGLRenderer::setupDrawNoTexture() { 1597 mCaches.disableTexCoordsVertexArray(); 1598} 1599 1600void OpenGLRenderer::setupDrawVertexAlpha(bool useShadowAlphaInterp) { 1601 mDescription.hasVertexAlpha = true; 1602 mDescription.useShadowAlphaInterp = useShadowAlphaInterp; 1603} 1604 1605void OpenGLRenderer::setupDrawColor(int color, int alpha) { 1606 mColorA = alpha / 255.0f; 1607 mColorR = mColorA * ((color >> 16) & 0xFF) / 255.0f; 1608 mColorG = mColorA * ((color >> 8) & 0xFF) / 255.0f; 1609 mColorB = mColorA * ((color ) & 0xFF) / 255.0f; 1610 mColorSet = true; 1611 mSetShaderColor = mDescription.setColorModulate(mColorA); 1612} 1613 1614void OpenGLRenderer::setupDrawAlpha8Color(int color, int alpha) { 1615 mColorA = alpha / 255.0f; 1616 mColorR = mColorA * ((color >> 16) & 0xFF) / 255.0f; 1617 mColorG = mColorA * ((color >> 8) & 0xFF) / 255.0f; 1618 mColorB = mColorA * ((color ) & 0xFF) / 255.0f; 1619 mColorSet = true; 1620 mSetShaderColor = mDescription.setAlpha8ColorModulate(mColorR, mColorG, mColorB, mColorA); 1621} 1622 1623void OpenGLRenderer::setupDrawTextGamma(const SkPaint* paint) { 1624 mCaches.fontRenderer->describe(mDescription, paint); 1625} 1626 1627void OpenGLRenderer::setupDrawColor(float r, float g, float b, float a) { 1628 mColorA = a; 1629 mColorR = r; 1630 mColorG = g; 1631 mColorB = b; 1632 mColorSet = true; 1633 mSetShaderColor = mDescription.setColorModulate(a); 1634} 1635 1636void OpenGLRenderer::setupDrawShader(const SkShader* shader) { 1637 if (shader != NULL) { 1638 SkiaShader::describe(&mCaches, mDescription, mExtensions, *shader); 1639 } 1640} 1641 1642void OpenGLRenderer::setupDrawColorFilter(const SkColorFilter* filter) { 1643 if (filter == NULL) { 1644 return; 1645 } 1646 1647 SkXfermode::Mode mode; 1648 if (filter->asColorMode(NULL, &mode)) { 1649 mDescription.colorOp = ProgramDescription::kColorBlend; 1650 mDescription.colorMode = mode; 1651 } else if (filter->asColorMatrix(NULL)) { 1652 mDescription.colorOp = ProgramDescription::kColorMatrix; 1653 } 1654} 1655 1656void OpenGLRenderer::accountForClear(SkXfermode::Mode mode) { 1657 if (mColorSet && mode == SkXfermode::kClear_Mode) { 1658 mColorA = 1.0f; 1659 mColorR = mColorG = mColorB = 0.0f; 1660 mSetShaderColor = mDescription.modulate = true; 1661 } 1662} 1663 1664void OpenGLRenderer::setupDrawBlending(const Layer* layer, bool swapSrcDst) { 1665 SkXfermode::Mode mode = layer->getMode(); 1666 // When the blending mode is kClear_Mode, we need to use a modulate color 1667 // argb=1,0,0,0 1668 accountForClear(mode); 1669 // TODO: check shader blending, once we have shader drawing support for layers. 1670 bool blend = layer->isBlend() || getLayerAlpha(layer) < 1.0f || 1671 (mColorSet && mColorA < 1.0f) || isBlendedColorFilter(layer->getColorFilter()); 1672 chooseBlending(blend, mode, mDescription, swapSrcDst); 1673} 1674 1675void OpenGLRenderer::setupDrawBlending(const SkPaint* paint, bool blend, bool swapSrcDst) { 1676 SkXfermode::Mode mode = getXfermodeDirect(paint); 1677 // When the blending mode is kClear_Mode, we need to use a modulate color 1678 // argb=1,0,0,0 1679 accountForClear(mode); 1680 blend |= (mColorSet && mColorA < 1.0f) || 1681 (getShader(paint) && !getShader(paint)->isOpaque()) || 1682 isBlendedColorFilter(getColorFilter(paint)); 1683 chooseBlending(blend, mode, mDescription, swapSrcDst); 1684} 1685 1686void OpenGLRenderer::setupDrawProgram() { 1687 useProgram(mCaches.programCache.get(mDescription)); 1688 if (mDescription.hasRoundRectClip) { 1689 // TODO: avoid doing this repeatedly, stashing state pointer in program 1690 const RoundRectClipState* state = mSnapshot->roundRectClipState; 1691 const Rect& innerRect = state->innerRect; 1692 glUniform4f(mCaches.currentProgram->getUniform("roundRectInnerRectLTRB"), 1693 innerRect.left, innerRect.top, 1694 innerRect.right, innerRect.bottom); 1695 glUniformMatrix4fv(mCaches.currentProgram->getUniform("roundRectInvTransform"), 1696 1, GL_FALSE, &state->matrix.data[0]); 1697 1698 // add half pixel to round out integer rect space to cover pixel centers 1699 float roundedOutRadius = state->radius + 0.5f; 1700 glUniform1f(mCaches.currentProgram->getUniform("roundRectRadius"), 1701 roundedOutRadius); 1702 } 1703} 1704 1705void OpenGLRenderer::setupDrawDirtyRegionsDisabled() { 1706 mTrackDirtyRegions = false; 1707} 1708 1709void OpenGLRenderer::setupDrawModelView(ModelViewMode mode, bool offset, 1710 float left, float top, float right, float bottom, bool ignoreTransform) { 1711 mModelViewMatrix.loadTranslate(left, top, 0.0f); 1712 if (mode == kModelViewMode_TranslateAndScale) { 1713 mModelViewMatrix.scale(right - left, bottom - top, 1.0f); 1714 } 1715 1716 bool dirty = right - left > 0.0f && bottom - top > 0.0f; 1717 const Matrix4& transformMatrix = ignoreTransform ? Matrix4::identity() : *currentTransform(); 1718 mCaches.currentProgram->set(mSnapshot->getOrthoMatrix(), mModelViewMatrix, transformMatrix, offset); 1719 if (dirty && mTrackDirtyRegions) { 1720 if (!ignoreTransform) { 1721 dirtyLayer(left, top, right, bottom, *currentTransform()); 1722 } else { 1723 dirtyLayer(left, top, right, bottom); 1724 } 1725 } 1726} 1727 1728void OpenGLRenderer::setupDrawColorUniforms(bool hasShader) { 1729 if ((mColorSet && !hasShader) || (hasShader && mSetShaderColor)) { 1730 mCaches.currentProgram->setColor(mColorR, mColorG, mColorB, mColorA); 1731 } 1732} 1733 1734void OpenGLRenderer::setupDrawPureColorUniforms() { 1735 if (mSetShaderColor) { 1736 mCaches.currentProgram->setColor(mColorR, mColorG, mColorB, mColorA); 1737 } 1738} 1739 1740void OpenGLRenderer::setupDrawShaderUniforms(const SkShader* shader, bool ignoreTransform) { 1741 if (shader == NULL) { 1742 return; 1743 } 1744 1745 if (ignoreTransform) { 1746 // if ignoreTransform=true was passed to setupDrawModelView, undo currentTransform() 1747 // because it was built into modelView / the geometry, and the description needs to 1748 // compensate. 1749 mat4 modelViewWithoutTransform; 1750 modelViewWithoutTransform.loadInverse(*currentTransform()); 1751 modelViewWithoutTransform.multiply(mModelViewMatrix); 1752 mModelViewMatrix.load(modelViewWithoutTransform); 1753 } 1754 1755 SkiaShader::setupProgram(&mCaches, mModelViewMatrix, &mTextureUnit, mExtensions, *shader); 1756} 1757 1758void OpenGLRenderer::setupDrawColorFilterUniforms(const SkColorFilter* filter) { 1759 if (NULL == filter) { 1760 return; 1761 } 1762 1763 SkColor color; 1764 SkXfermode::Mode mode; 1765 if (filter->asColorMode(&color, &mode)) { 1766 const int alpha = SkColorGetA(color); 1767 const GLfloat a = alpha / 255.0f; 1768 const GLfloat r = a * SkColorGetR(color) / 255.0f; 1769 const GLfloat g = a * SkColorGetG(color) / 255.0f; 1770 const GLfloat b = a * SkColorGetB(color) / 255.0f; 1771 glUniform4f(mCaches.currentProgram->getUniform("colorBlend"), r, g, b, a); 1772 return; 1773 } 1774 1775 SkScalar srcColorMatrix[20]; 1776 if (filter->asColorMatrix(srcColorMatrix)) { 1777 1778 float colorMatrix[16]; 1779 memcpy(colorMatrix, srcColorMatrix, 4 * sizeof(float)); 1780 memcpy(&colorMatrix[4], &srcColorMatrix[5], 4 * sizeof(float)); 1781 memcpy(&colorMatrix[8], &srcColorMatrix[10], 4 * sizeof(float)); 1782 memcpy(&colorMatrix[12], &srcColorMatrix[15], 4 * sizeof(float)); 1783 1784 // Skia uses the range [0..255] for the addition vector, but we need 1785 // the [0..1] range to apply the vector in GLSL 1786 float colorVector[4]; 1787 colorVector[0] = srcColorMatrix[4] / 255.0f; 1788 colorVector[1] = srcColorMatrix[9] / 255.0f; 1789 colorVector[2] = srcColorMatrix[14] / 255.0f; 1790 colorVector[3] = srcColorMatrix[19] / 255.0f; 1791 1792 glUniformMatrix4fv(mCaches.currentProgram->getUniform("colorMatrix"), 1, 1793 GL_FALSE, colorMatrix); 1794 glUniform4fv(mCaches.currentProgram->getUniform("colorMatrixVector"), 1, colorVector); 1795 return; 1796 } 1797 1798 // it is an error if we ever get here 1799} 1800 1801void OpenGLRenderer::setupDrawTextGammaUniforms() { 1802 mCaches.fontRenderer->setupProgram(mDescription, mCaches.currentProgram); 1803} 1804 1805void OpenGLRenderer::setupDrawSimpleMesh() { 1806 bool force = mCaches.bindMeshBuffer(); 1807 mCaches.bindPositionVertexPointer(force, 0); 1808 mCaches.unbindIndicesBuffer(); 1809} 1810 1811void OpenGLRenderer::setupDrawTexture(GLuint texture) { 1812 if (texture) bindTexture(texture); 1813 mTextureUnit++; 1814 mCaches.enableTexCoordsVertexArray(); 1815} 1816 1817void OpenGLRenderer::setupDrawExternalTexture(GLuint texture) { 1818 bindExternalTexture(texture); 1819 mTextureUnit++; 1820 mCaches.enableTexCoordsVertexArray(); 1821} 1822 1823void OpenGLRenderer::setupDrawTextureTransform() { 1824 mDescription.hasTextureTransform = true; 1825} 1826 1827void OpenGLRenderer::setupDrawTextureTransformUniforms(mat4& transform) { 1828 glUniformMatrix4fv(mCaches.currentProgram->getUniform("mainTextureTransform"), 1, 1829 GL_FALSE, &transform.data[0]); 1830} 1831 1832void OpenGLRenderer::setupDrawMesh(const GLvoid* vertices, 1833 const GLvoid* texCoords, GLuint vbo) { 1834 bool force = false; 1835 if (!vertices || vbo) { 1836 force = mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 1837 } else { 1838 force = mCaches.unbindMeshBuffer(); 1839 } 1840 1841 mCaches.bindPositionVertexPointer(force, vertices); 1842 if (mCaches.currentProgram->texCoords >= 0) { 1843 mCaches.bindTexCoordsVertexPointer(force, texCoords); 1844 } 1845 1846 mCaches.unbindIndicesBuffer(); 1847} 1848 1849void OpenGLRenderer::setupDrawMesh(const GLvoid* vertices, 1850 const GLvoid* texCoords, const GLvoid* colors) { 1851 bool force = mCaches.unbindMeshBuffer(); 1852 GLsizei stride = sizeof(ColorTextureVertex); 1853 1854 mCaches.bindPositionVertexPointer(force, vertices, stride); 1855 if (mCaches.currentProgram->texCoords >= 0) { 1856 mCaches.bindTexCoordsVertexPointer(force, texCoords, stride); 1857 } 1858 int slot = mCaches.currentProgram->getAttrib("colors"); 1859 if (slot >= 0) { 1860 glEnableVertexAttribArray(slot); 1861 glVertexAttribPointer(slot, 4, GL_FLOAT, GL_FALSE, stride, colors); 1862 } 1863 1864 mCaches.unbindIndicesBuffer(); 1865} 1866 1867void OpenGLRenderer::setupDrawMeshIndices(const GLvoid* vertices, 1868 const GLvoid* texCoords, GLuint vbo) { 1869 bool force = false; 1870 // If vbo is != 0 we want to treat the vertices parameter as an offset inside 1871 // a VBO. However, if vertices is set to NULL and vbo == 0 then we want to 1872 // use the default VBO found in Caches 1873 if (!vertices || vbo) { 1874 force = mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 1875 } else { 1876 force = mCaches.unbindMeshBuffer(); 1877 } 1878 mCaches.bindQuadIndicesBuffer(); 1879 1880 mCaches.bindPositionVertexPointer(force, vertices); 1881 if (mCaches.currentProgram->texCoords >= 0) { 1882 mCaches.bindTexCoordsVertexPointer(force, texCoords); 1883 } 1884} 1885 1886void OpenGLRenderer::setupDrawIndexedVertices(GLvoid* vertices) { 1887 bool force = mCaches.unbindMeshBuffer(); 1888 mCaches.bindQuadIndicesBuffer(); 1889 mCaches.bindPositionVertexPointer(force, vertices, gVertexStride); 1890} 1891 1892/////////////////////////////////////////////////////////////////////////////// 1893// Drawing 1894/////////////////////////////////////////////////////////////////////////////// 1895 1896status_t OpenGLRenderer::drawRenderNode(RenderNode* renderNode, Rect& dirty, int32_t replayFlags) { 1897 status_t status; 1898 // All the usual checks and setup operations (quickReject, setupDraw, etc.) 1899 // will be performed by the display list itself 1900 if (renderNode && renderNode->isRenderable()) { 1901 // compute 3d ordering 1902 renderNode->computeOrdering(); 1903 if (CC_UNLIKELY(mCaches.drawDeferDisabled)) { 1904 status = startFrame(); 1905 ReplayStateStruct replayStruct(*this, dirty, replayFlags); 1906 renderNode->replay(replayStruct, 0); 1907 return status | replayStruct.mDrawGlStatus; 1908 } 1909 1910 DeferredDisplayList deferredList(*currentClipRect()); 1911 DeferStateStruct deferStruct(deferredList, *this, replayFlags); 1912 renderNode->defer(deferStruct, 0); 1913 1914 flushLayers(); 1915 status = startFrame(); 1916 1917 return deferredList.flush(*this, dirty) | status; 1918 } 1919 1920 // Even if there is no drawing command(Ex: invisible), 1921 // it still needs startFrame to clear buffer and start tiling. 1922 return startFrame(); 1923} 1924 1925void OpenGLRenderer::drawAlphaBitmap(Texture* texture, float left, float top, const SkPaint* paint) { 1926 int color = paint != NULL ? paint->getColor() : 0; 1927 1928 float x = left; 1929 float y = top; 1930 1931 texture->setWrap(GL_CLAMP_TO_EDGE, true); 1932 1933 bool ignoreTransform = false; 1934 if (currentTransform()->isPureTranslate()) { 1935 x = (int) floorf(left + currentTransform()->getTranslateX() + 0.5f); 1936 y = (int) floorf(top + currentTransform()->getTranslateY() + 0.5f); 1937 ignoreTransform = true; 1938 1939 texture->setFilter(GL_NEAREST, true); 1940 } else { 1941 texture->setFilter(getFilter(paint), true); 1942 } 1943 1944 // No need to check for a UV mapper on the texture object, only ARGB_8888 1945 // bitmaps get packed in the atlas 1946 drawAlpha8TextureMesh(x, y, x + texture->width, y + texture->height, texture->id, 1947 paint, (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, 1948 GL_TRIANGLE_STRIP, gMeshCount, ignoreTransform); 1949} 1950 1951/** 1952 * Important note: this method is intended to draw batches of bitmaps and 1953 * will not set the scissor enable or dirty the current layer, if any. 1954 * The caller is responsible for properly dirtying the current layer. 1955 */ 1956status_t OpenGLRenderer::drawBitmaps(const SkBitmap* bitmap, AssetAtlas::Entry* entry, 1957 int bitmapCount, TextureVertex* vertices, bool pureTranslate, 1958 const Rect& bounds, const SkPaint* paint) { 1959 mCaches.activeTexture(0); 1960 Texture* texture = entry ? entry->texture : mCaches.textureCache.get(bitmap); 1961 if (!texture) return DrawGlInfo::kStatusDone; 1962 1963 const AutoTexture autoCleanup(texture); 1964 1965 texture->setWrap(GL_CLAMP_TO_EDGE, true); 1966 texture->setFilter(pureTranslate ? GL_NEAREST : getFilter(paint), true); 1967 1968 const float x = (int) floorf(bounds.left + 0.5f); 1969 const float y = (int) floorf(bounds.top + 0.5f); 1970 if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) { 1971 drawAlpha8TextureMesh(x, y, x + bounds.getWidth(), y + bounds.getHeight(), 1972 texture->id, paint, &vertices[0].x, &vertices[0].u, 1973 GL_TRIANGLES, bitmapCount * 6, true, 1974 kModelViewMode_Translate, false); 1975 } else { 1976 drawTextureMesh(x, y, x + bounds.getWidth(), y + bounds.getHeight(), 1977 texture->id, paint, texture->blend, &vertices[0].x, &vertices[0].u, 1978 GL_TRIANGLES, bitmapCount * 6, false, true, 0, 1979 kModelViewMode_Translate, false); 1980 } 1981 1982 return DrawGlInfo::kStatusDrew; 1983} 1984 1985status_t OpenGLRenderer::drawBitmap(const SkBitmap* bitmap, const SkPaint* paint) { 1986 if (quickRejectSetupScissor(0, 0, bitmap->width(), bitmap->height())) { 1987 return DrawGlInfo::kStatusDone; 1988 } 1989 1990 mCaches.activeTexture(0); 1991 Texture* texture = getTexture(bitmap); 1992 if (!texture) return DrawGlInfo::kStatusDone; 1993 const AutoTexture autoCleanup(texture); 1994 1995 if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) { 1996 drawAlphaBitmap(texture, 0, 0, paint); 1997 } else { 1998 drawTextureRect(0, 0, bitmap->width(), bitmap->height(), texture, paint); 1999 } 2000 2001 return DrawGlInfo::kStatusDrew; 2002} 2003 2004status_t OpenGLRenderer::drawBitmapData(const SkBitmap* bitmap, const SkPaint* paint) { 2005 if (quickRejectSetupScissor(0, 0, bitmap->width(), bitmap->height())) { 2006 return DrawGlInfo::kStatusDone; 2007 } 2008 2009 mCaches.activeTexture(0); 2010 Texture* texture = mCaches.textureCache.getTransient(bitmap); 2011 const AutoTexture autoCleanup(texture); 2012 2013 if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) { 2014 drawAlphaBitmap(texture, 0, 0, paint); 2015 } else { 2016 drawTextureRect(0, 0, bitmap->width(), bitmap->height(), texture, paint); 2017 } 2018 2019 return DrawGlInfo::kStatusDrew; 2020} 2021 2022status_t OpenGLRenderer::drawBitmapMesh(const SkBitmap* bitmap, int meshWidth, int meshHeight, 2023 const float* vertices, const int* colors, const SkPaint* paint) { 2024 if (!vertices || currentSnapshot()->isIgnored()) { 2025 return DrawGlInfo::kStatusDone; 2026 } 2027 2028 // TODO: use quickReject on bounds from vertices 2029 mCaches.enableScissor(); 2030 2031 float left = FLT_MAX; 2032 float top = FLT_MAX; 2033 float right = FLT_MIN; 2034 float bottom = FLT_MIN; 2035 2036 const uint32_t count = meshWidth * meshHeight * 6; 2037 2038 Vector<ColorTextureVertex> mesh; // TODO: use C++11 unique_ptr 2039 mesh.setCapacity(count); 2040 ColorTextureVertex* vertex = mesh.editArray(); 2041 2042 bool cleanupColors = false; 2043 if (!colors) { 2044 uint32_t colorsCount = (meshWidth + 1) * (meshHeight + 1); 2045 int* newColors = new int[colorsCount]; 2046 memset(newColors, 0xff, colorsCount * sizeof(int)); 2047 colors = newColors; 2048 cleanupColors = true; 2049 } 2050 2051 mCaches.activeTexture(0); 2052 Texture* texture = mRenderState.assetAtlas().getEntryTexture(bitmap); 2053 const UvMapper& mapper(getMapper(texture)); 2054 2055 for (int32_t y = 0; y < meshHeight; y++) { 2056 for (int32_t x = 0; x < meshWidth; x++) { 2057 uint32_t i = (y * (meshWidth + 1) + x) * 2; 2058 2059 float u1 = float(x) / meshWidth; 2060 float u2 = float(x + 1) / meshWidth; 2061 float v1 = float(y) / meshHeight; 2062 float v2 = float(y + 1) / meshHeight; 2063 2064 mapper.map(u1, v1, u2, v2); 2065 2066 int ax = i + (meshWidth + 1) * 2; 2067 int ay = ax + 1; 2068 int bx = i; 2069 int by = bx + 1; 2070 int cx = i + 2; 2071 int cy = cx + 1; 2072 int dx = i + (meshWidth + 1) * 2 + 2; 2073 int dy = dx + 1; 2074 2075 ColorTextureVertex::set(vertex++, vertices[dx], vertices[dy], u2, v2, colors[dx / 2]); 2076 ColorTextureVertex::set(vertex++, vertices[ax], vertices[ay], u1, v2, colors[ax / 2]); 2077 ColorTextureVertex::set(vertex++, vertices[bx], vertices[by], u1, v1, colors[bx / 2]); 2078 2079 ColorTextureVertex::set(vertex++, vertices[dx], vertices[dy], u2, v2, colors[dx / 2]); 2080 ColorTextureVertex::set(vertex++, vertices[bx], vertices[by], u1, v1, colors[bx / 2]); 2081 ColorTextureVertex::set(vertex++, vertices[cx], vertices[cy], u2, v1, colors[cx / 2]); 2082 2083 left = fminf(left, fminf(vertices[ax], fminf(vertices[bx], vertices[cx]))); 2084 top = fminf(top, fminf(vertices[ay], fminf(vertices[by], vertices[cy]))); 2085 right = fmaxf(right, fmaxf(vertices[ax], fmaxf(vertices[bx], vertices[cx]))); 2086 bottom = fmaxf(bottom, fmaxf(vertices[ay], fmaxf(vertices[by], vertices[cy]))); 2087 } 2088 } 2089 2090 if (quickRejectSetupScissor(left, top, right, bottom)) { 2091 if (cleanupColors) delete[] colors; 2092 return DrawGlInfo::kStatusDone; 2093 } 2094 2095 if (!texture) { 2096 texture = mCaches.textureCache.get(bitmap); 2097 if (!texture) { 2098 if (cleanupColors) delete[] colors; 2099 return DrawGlInfo::kStatusDone; 2100 } 2101 } 2102 const AutoTexture autoCleanup(texture); 2103 2104 texture->setWrap(GL_CLAMP_TO_EDGE, true); 2105 texture->setFilter(getFilter(paint), true); 2106 2107 int alpha; 2108 SkXfermode::Mode mode; 2109 getAlphaAndMode(paint, &alpha, &mode); 2110 2111 float a = alpha / 255.0f; 2112 2113 if (hasLayer()) { 2114 dirtyLayer(left, top, right, bottom, *currentTransform()); 2115 } 2116 2117 setupDraw(); 2118 setupDrawWithTextureAndColor(); 2119 setupDrawColor(a, a, a, a); 2120 setupDrawColorFilter(getColorFilter(paint)); 2121 setupDrawBlending(paint, true); 2122 setupDrawProgram(); 2123 setupDrawDirtyRegionsDisabled(); 2124 setupDrawModelView(kModelViewMode_TranslateAndScale, false, 0.0f, 0.0f, 1.0f, 1.0f); 2125 setupDrawTexture(texture->id); 2126 setupDrawPureColorUniforms(); 2127 setupDrawColorFilterUniforms(getColorFilter(paint)); 2128 setupDrawMesh(&mesh[0].x, &mesh[0].u, &mesh[0].r); 2129 2130 glDrawArrays(GL_TRIANGLES, 0, count); 2131 2132 int slot = mCaches.currentProgram->getAttrib("colors"); 2133 if (slot >= 0) { 2134 glDisableVertexAttribArray(slot); 2135 } 2136 2137 if (cleanupColors) delete[] colors; 2138 2139 return DrawGlInfo::kStatusDrew; 2140} 2141 2142status_t OpenGLRenderer::drawBitmap(const SkBitmap* bitmap, 2143 float srcLeft, float srcTop, float srcRight, float srcBottom, 2144 float dstLeft, float dstTop, float dstRight, float dstBottom, 2145 const SkPaint* paint) { 2146 if (quickRejectSetupScissor(dstLeft, dstTop, dstRight, dstBottom)) { 2147 return DrawGlInfo::kStatusDone; 2148 } 2149 2150 mCaches.activeTexture(0); 2151 Texture* texture = getTexture(bitmap); 2152 if (!texture) return DrawGlInfo::kStatusDone; 2153 const AutoTexture autoCleanup(texture); 2154 2155 const float width = texture->width; 2156 const float height = texture->height; 2157 2158 float u1 = fmax(0.0f, srcLeft / width); 2159 float v1 = fmax(0.0f, srcTop / height); 2160 float u2 = fmin(1.0f, srcRight / width); 2161 float v2 = fmin(1.0f, srcBottom / height); 2162 2163 getMapper(texture).map(u1, v1, u2, v2); 2164 2165 mCaches.unbindMeshBuffer(); 2166 resetDrawTextureTexCoords(u1, v1, u2, v2); 2167 2168 texture->setWrap(GL_CLAMP_TO_EDGE, true); 2169 2170 float scaleX = (dstRight - dstLeft) / (srcRight - srcLeft); 2171 float scaleY = (dstBottom - dstTop) / (srcBottom - srcTop); 2172 2173 bool scaled = scaleX != 1.0f || scaleY != 1.0f; 2174 // Apply a scale transform on the canvas only when a shader is in use 2175 // Skia handles the ratio between the dst and src rects as a scale factor 2176 // when a shader is set 2177 bool useScaleTransform = getShader(paint) && scaled; 2178 bool ignoreTransform = false; 2179 2180 if (CC_LIKELY(currentTransform()->isPureTranslate() && !useScaleTransform)) { 2181 float x = (int) floorf(dstLeft + currentTransform()->getTranslateX() + 0.5f); 2182 float y = (int) floorf(dstTop + currentTransform()->getTranslateY() + 0.5f); 2183 2184 dstRight = x + (dstRight - dstLeft); 2185 dstBottom = y + (dstBottom - dstTop); 2186 2187 dstLeft = x; 2188 dstTop = y; 2189 2190 texture->setFilter(scaled ? getFilter(paint) : GL_NEAREST, true); 2191 ignoreTransform = true; 2192 } else { 2193 texture->setFilter(getFilter(paint), true); 2194 } 2195 2196 if (CC_UNLIKELY(useScaleTransform)) { 2197 save(SkCanvas::kMatrix_SaveFlag); 2198 translate(dstLeft, dstTop); 2199 scale(scaleX, scaleY); 2200 2201 dstLeft = 0.0f; 2202 dstTop = 0.0f; 2203 2204 dstRight = srcRight - srcLeft; 2205 dstBottom = srcBottom - srcTop; 2206 } 2207 2208 if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) { 2209 drawAlpha8TextureMesh(dstLeft, dstTop, dstRight, dstBottom, 2210 texture->id, paint, 2211 &mMeshVertices[0].x, &mMeshVertices[0].u, 2212 GL_TRIANGLE_STRIP, gMeshCount, ignoreTransform); 2213 } else { 2214 drawTextureMesh(dstLeft, dstTop, dstRight, dstBottom, 2215 texture->id, paint, texture->blend, 2216 &mMeshVertices[0].x, &mMeshVertices[0].u, 2217 GL_TRIANGLE_STRIP, gMeshCount, false, ignoreTransform); 2218 } 2219 2220 if (CC_UNLIKELY(useScaleTransform)) { 2221 restore(); 2222 } 2223 2224 resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 2225 2226 return DrawGlInfo::kStatusDrew; 2227} 2228 2229status_t OpenGLRenderer::drawPatch(const SkBitmap* bitmap, const Res_png_9patch* patch, 2230 float left, float top, float right, float bottom, const SkPaint* paint) { 2231 if (quickRejectSetupScissor(left, top, right, bottom)) { 2232 return DrawGlInfo::kStatusDone; 2233 } 2234 2235 AssetAtlas::Entry* entry = mRenderState.assetAtlas().getEntry(bitmap); 2236 const Patch* mesh = mCaches.patchCache.get(entry, bitmap->width(), bitmap->height(), 2237 right - left, bottom - top, patch); 2238 2239 return drawPatch(bitmap, mesh, entry, left, top, right, bottom, paint); 2240} 2241 2242status_t OpenGLRenderer::drawPatch(const SkBitmap* bitmap, const Patch* mesh, 2243 AssetAtlas::Entry* entry, float left, float top, float right, float bottom, 2244 const SkPaint* paint) { 2245 if (quickRejectSetupScissor(left, top, right, bottom)) { 2246 return DrawGlInfo::kStatusDone; 2247 } 2248 2249 if (CC_LIKELY(mesh && mesh->verticesCount > 0)) { 2250 mCaches.activeTexture(0); 2251 Texture* texture = entry ? entry->texture : mCaches.textureCache.get(bitmap); 2252 if (!texture) return DrawGlInfo::kStatusDone; 2253 const AutoTexture autoCleanup(texture); 2254 2255 texture->setWrap(GL_CLAMP_TO_EDGE, true); 2256 texture->setFilter(GL_LINEAR, true); 2257 2258 const bool pureTranslate = currentTransform()->isPureTranslate(); 2259 // Mark the current layer dirty where we are going to draw the patch 2260 if (hasLayer() && mesh->hasEmptyQuads) { 2261 const float offsetX = left + currentTransform()->getTranslateX(); 2262 const float offsetY = top + currentTransform()->getTranslateY(); 2263 const size_t count = mesh->quads.size(); 2264 for (size_t i = 0; i < count; i++) { 2265 const Rect& bounds = mesh->quads.itemAt(i); 2266 if (CC_LIKELY(pureTranslate)) { 2267 const float x = (int) floorf(bounds.left + offsetX + 0.5f); 2268 const float y = (int) floorf(bounds.top + offsetY + 0.5f); 2269 dirtyLayer(x, y, x + bounds.getWidth(), y + bounds.getHeight()); 2270 } else { 2271 dirtyLayer(left + bounds.left, top + bounds.top, 2272 left + bounds.right, top + bounds.bottom, *currentTransform()); 2273 } 2274 } 2275 } 2276 2277 bool ignoreTransform = false; 2278 if (CC_LIKELY(pureTranslate)) { 2279 const float x = (int) floorf(left + currentTransform()->getTranslateX() + 0.5f); 2280 const float y = (int) floorf(top + currentTransform()->getTranslateY() + 0.5f); 2281 2282 right = x + right - left; 2283 bottom = y + bottom - top; 2284 left = x; 2285 top = y; 2286 ignoreTransform = true; 2287 } 2288 drawIndexedTextureMesh(left, top, right, bottom, texture->id, paint, 2289 texture->blend, (GLvoid*) mesh->offset, (GLvoid*) mesh->textureOffset, 2290 GL_TRIANGLES, mesh->indexCount, false, ignoreTransform, 2291 mCaches.patchCache.getMeshBuffer(), kModelViewMode_Translate, !mesh->hasEmptyQuads); 2292 } 2293 2294 return DrawGlInfo::kStatusDrew; 2295} 2296 2297/** 2298 * Important note: this method is intended to draw batches of 9-patch objects and 2299 * will not set the scissor enable or dirty the current layer, if any. 2300 * The caller is responsible for properly dirtying the current layer. 2301 */ 2302status_t OpenGLRenderer::drawPatches(const SkBitmap* bitmap, AssetAtlas::Entry* entry, 2303 TextureVertex* vertices, uint32_t indexCount, const SkPaint* paint) { 2304 mCaches.activeTexture(0); 2305 Texture* texture = entry ? entry->texture : mCaches.textureCache.get(bitmap); 2306 if (!texture) return DrawGlInfo::kStatusDone; 2307 const AutoTexture autoCleanup(texture); 2308 2309 texture->setWrap(GL_CLAMP_TO_EDGE, true); 2310 texture->setFilter(GL_LINEAR, true); 2311 2312 drawIndexedTextureMesh(0.0f, 0.0f, 1.0f, 1.0f, texture->id, paint, 2313 texture->blend, &vertices[0].x, &vertices[0].u, 2314 GL_TRIANGLES, indexCount, false, true, 0, kModelViewMode_Translate, false); 2315 2316 return DrawGlInfo::kStatusDrew; 2317} 2318 2319status_t OpenGLRenderer::drawVertexBuffer(float translateX, float translateY, 2320 const VertexBuffer& vertexBuffer, const SkPaint* paint, int displayFlags) { 2321 // not missing call to quickReject/dirtyLayer, always done at a higher level 2322 if (!vertexBuffer.getVertexCount()) { 2323 // no vertices to draw 2324 return DrawGlInfo::kStatusDone; 2325 } 2326 2327 Rect bounds(vertexBuffer.getBounds()); 2328 bounds.translate(translateX, translateY); 2329 dirtyLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, *currentTransform()); 2330 2331 int color = paint->getColor(); 2332 bool isAA = paint->isAntiAlias(); 2333 2334 setupDraw(); 2335 setupDrawNoTexture(); 2336 if (isAA) setupDrawVertexAlpha((displayFlags & kVertexBuffer_ShadowInterp)); 2337 setupDrawColor(color, ((color >> 24) & 0xFF) * mSnapshot->alpha); 2338 setupDrawColorFilter(getColorFilter(paint)); 2339 setupDrawShader(getShader(paint)); 2340 setupDrawBlending(paint, isAA); 2341 setupDrawProgram(); 2342 setupDrawModelView(kModelViewMode_Translate, (displayFlags & kVertexBuffer_Offset), 2343 translateX, translateY, 0, 0); 2344 setupDrawColorUniforms(getShader(paint)); 2345 setupDrawColorFilterUniforms(getColorFilter(paint)); 2346 setupDrawShaderUniforms(getShader(paint)); 2347 2348 const void* vertices = vertexBuffer.getBuffer(); 2349 bool force = mCaches.unbindMeshBuffer(); 2350 mCaches.bindPositionVertexPointer(true, vertices, isAA ? gAlphaVertexStride : gVertexStride); 2351 mCaches.resetTexCoordsVertexPointer(); 2352 2353 int alphaSlot = -1; 2354 if (isAA) { 2355 void* alphaCoords = ((GLbyte*) vertices) + gVertexAlphaOffset; 2356 alphaSlot = mCaches.currentProgram->getAttrib("vtxAlpha"); 2357 // TODO: avoid enable/disable in back to back uses of the alpha attribute 2358 glEnableVertexAttribArray(alphaSlot); 2359 glVertexAttribPointer(alphaSlot, 1, GL_FLOAT, GL_FALSE, gAlphaVertexStride, alphaCoords); 2360 } 2361 2362 const VertexBuffer::Mode mode = vertexBuffer.getMode(); 2363 if (mode == VertexBuffer::kStandard) { 2364 mCaches.unbindIndicesBuffer(); 2365 glDrawArrays(GL_TRIANGLE_STRIP, 0, vertexBuffer.getVertexCount()); 2366 } else if (mode == VertexBuffer::kOnePolyRingShadow) { 2367 mCaches.bindShadowIndicesBuffer(); 2368 glDrawElements(GL_TRIANGLE_STRIP, ONE_POLY_RING_SHADOW_INDEX_COUNT, GL_UNSIGNED_SHORT, 0); 2369 } else if (mode == VertexBuffer::kTwoPolyRingShadow) { 2370 mCaches.bindShadowIndicesBuffer(); 2371 glDrawElements(GL_TRIANGLE_STRIP, TWO_POLY_RING_SHADOW_INDEX_COUNT, GL_UNSIGNED_SHORT, 0); 2372 } else if (mode == VertexBuffer::kIndices) { 2373 mCaches.unbindIndicesBuffer(); 2374 glDrawElements(GL_TRIANGLE_STRIP, vertexBuffer.getIndexCount(), GL_UNSIGNED_SHORT, 2375 vertexBuffer.getIndices()); 2376 } 2377 2378 if (isAA) { 2379 glDisableVertexAttribArray(alphaSlot); 2380 } 2381 2382 return DrawGlInfo::kStatusDrew; 2383} 2384 2385/** 2386 * Renders a convex path via tessellation. For AA paths, this function uses a similar approach to 2387 * that of AA lines in the drawLines() function. We expand the convex path by a half pixel in 2388 * screen space in all directions. However, instead of using a fragment shader to compute the 2389 * translucency of the color from its position, we simply use a varying parameter to define how far 2390 * a given pixel is from the edge. For non-AA paths, the expansion and alpha varying are not used. 2391 * 2392 * Doesn't yet support joins, caps, or path effects. 2393 */ 2394status_t OpenGLRenderer::drawConvexPath(const SkPath& path, const SkPaint* paint) { 2395 VertexBuffer vertexBuffer; 2396 // TODO: try clipping large paths to viewport 2397 PathTessellator::tessellatePath(path, paint, *currentTransform(), vertexBuffer); 2398 return drawVertexBuffer(vertexBuffer, paint); 2399} 2400 2401/** 2402 * We create tristrips for the lines much like shape stroke tessellation, using a per-vertex alpha 2403 * and additional geometry for defining an alpha slope perimeter. 2404 * 2405 * Using GL_LINES can be difficult because the rasterization rules for those lines produces some 2406 * unexpected results, and may vary between hardware devices. Previously we used a varying-base 2407 * in-shader alpha region, but found it to be taxing on some GPUs. 2408 * 2409 * TODO: try using a fixed input buffer for non-capped lines as in text rendering. this may reduce 2410 * memory transfer by removing need for degenerate vertices. 2411 */ 2412status_t OpenGLRenderer::drawLines(const float* points, int count, const SkPaint* paint) { 2413 if (currentSnapshot()->isIgnored() || count < 4) return DrawGlInfo::kStatusDone; 2414 2415 count &= ~0x3; // round down to nearest four 2416 2417 VertexBuffer buffer; 2418 PathTessellator::tessellateLines(points, count, paint, *currentTransform(), buffer); 2419 const Rect& bounds = buffer.getBounds(); 2420 2421 if (quickRejectSetupScissor(bounds.left, bounds.top, bounds.right, bounds.bottom)) { 2422 return DrawGlInfo::kStatusDone; 2423 } 2424 2425 int displayFlags = paint->isAntiAlias() ? 0 : kVertexBuffer_Offset; 2426 return drawVertexBuffer(buffer, paint, displayFlags); 2427} 2428 2429status_t OpenGLRenderer::drawPoints(const float* points, int count, const SkPaint* paint) { 2430 if (currentSnapshot()->isIgnored() || count < 2) return DrawGlInfo::kStatusDone; 2431 2432 count &= ~0x1; // round down to nearest two 2433 2434 VertexBuffer buffer; 2435 PathTessellator::tessellatePoints(points, count, paint, *currentTransform(), buffer); 2436 2437 const Rect& bounds = buffer.getBounds(); 2438 if (quickRejectSetupScissor(bounds.left, bounds.top, bounds.right, bounds.bottom)) { 2439 return DrawGlInfo::kStatusDone; 2440 } 2441 2442 int displayFlags = paint->isAntiAlias() ? 0 : kVertexBuffer_Offset; 2443 return drawVertexBuffer(buffer, paint, displayFlags); 2444} 2445 2446status_t OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 2447 // No need to check against the clip, we fill the clip region 2448 if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone; 2449 2450 Rect clip(*currentClipRect()); 2451 clip.snapToPixelBoundaries(); 2452 2453 SkPaint paint; 2454 paint.setColor(color); 2455 paint.setXfermodeMode(mode); 2456 2457 drawColorRect(clip.left, clip.top, clip.right, clip.bottom, &paint, true); 2458 2459 return DrawGlInfo::kStatusDrew; 2460} 2461 2462status_t OpenGLRenderer::drawShape(float left, float top, const PathTexture* texture, 2463 const SkPaint* paint) { 2464 if (!texture) return DrawGlInfo::kStatusDone; 2465 const AutoTexture autoCleanup(texture); 2466 2467 const float x = left + texture->left - texture->offset; 2468 const float y = top + texture->top - texture->offset; 2469 2470 drawPathTexture(texture, x, y, paint); 2471 2472 return DrawGlInfo::kStatusDrew; 2473} 2474 2475status_t OpenGLRenderer::drawRoundRect(float left, float top, float right, float bottom, 2476 float rx, float ry, const SkPaint* p) { 2477 if (currentSnapshot()->isIgnored() 2478 || quickRejectSetupScissor(left, top, right, bottom, p) 2479 || paintWillNotDraw(*p)) { 2480 return DrawGlInfo::kStatusDone; 2481 } 2482 2483 if (p->getPathEffect() != 0) { 2484 mCaches.activeTexture(0); 2485 const PathTexture* texture = mCaches.pathCache.getRoundRect( 2486 right - left, bottom - top, rx, ry, p); 2487 return drawShape(left, top, texture, p); 2488 } 2489 2490 const VertexBuffer* vertexBuffer = mCaches.tessellationCache.getRoundRect( 2491 *currentTransform(), *p, right - left, bottom - top, rx, ry); 2492 return drawVertexBuffer(left, top, *vertexBuffer, p); 2493} 2494 2495status_t OpenGLRenderer::drawCircle(float x, float y, float radius, const SkPaint* p) { 2496 if (currentSnapshot()->isIgnored() 2497 || quickRejectSetupScissor(x - radius, y - radius, x + radius, y + radius, p) 2498 || paintWillNotDraw(*p)) { 2499 return DrawGlInfo::kStatusDone; 2500 } 2501 if (p->getPathEffect() != 0) { 2502 mCaches.activeTexture(0); 2503 const PathTexture* texture = mCaches.pathCache.getCircle(radius, p); 2504 return drawShape(x - radius, y - radius, texture, p); 2505 } 2506 2507 SkPath path; 2508 if (p->getStyle() == SkPaint::kStrokeAndFill_Style) { 2509 path.addCircle(x, y, radius + p->getStrokeWidth() / 2); 2510 } else { 2511 path.addCircle(x, y, radius); 2512 } 2513 return drawConvexPath(path, p); 2514} 2515 2516status_t OpenGLRenderer::drawOval(float left, float top, float right, float bottom, 2517 const SkPaint* p) { 2518 if (currentSnapshot()->isIgnored() 2519 || quickRejectSetupScissor(left, top, right, bottom, p) 2520 || paintWillNotDraw(*p)) { 2521 return DrawGlInfo::kStatusDone; 2522 } 2523 2524 if (p->getPathEffect() != 0) { 2525 mCaches.activeTexture(0); 2526 const PathTexture* texture = mCaches.pathCache.getOval(right - left, bottom - top, p); 2527 return drawShape(left, top, texture, p); 2528 } 2529 2530 SkPath path; 2531 SkRect rect = SkRect::MakeLTRB(left, top, right, bottom); 2532 if (p->getStyle() == SkPaint::kStrokeAndFill_Style) { 2533 rect.outset(p->getStrokeWidth() / 2, p->getStrokeWidth() / 2); 2534 } 2535 path.addOval(rect); 2536 return drawConvexPath(path, p); 2537} 2538 2539status_t OpenGLRenderer::drawArc(float left, float top, float right, float bottom, 2540 float startAngle, float sweepAngle, bool useCenter, const SkPaint* p) { 2541 if (currentSnapshot()->isIgnored() 2542 || quickRejectSetupScissor(left, top, right, bottom, p) 2543 || paintWillNotDraw(*p)) { 2544 return DrawGlInfo::kStatusDone; 2545 } 2546 2547 // TODO: support fills (accounting for concavity if useCenter && sweepAngle > 180) 2548 if (p->getStyle() != SkPaint::kStroke_Style || p->getPathEffect() != 0 || useCenter) { 2549 mCaches.activeTexture(0); 2550 const PathTexture* texture = mCaches.pathCache.getArc(right - left, bottom - top, 2551 startAngle, sweepAngle, useCenter, p); 2552 return drawShape(left, top, texture, p); 2553 } 2554 2555 SkRect rect = SkRect::MakeLTRB(left, top, right, bottom); 2556 if (p->getStyle() == SkPaint::kStrokeAndFill_Style) { 2557 rect.outset(p->getStrokeWidth() / 2, p->getStrokeWidth() / 2); 2558 } 2559 2560 SkPath path; 2561 if (useCenter) { 2562 path.moveTo(rect.centerX(), rect.centerY()); 2563 } 2564 path.arcTo(rect, startAngle, sweepAngle, !useCenter); 2565 if (useCenter) { 2566 path.close(); 2567 } 2568 return drawConvexPath(path, p); 2569} 2570 2571// See SkPaintDefaults.h 2572#define SkPaintDefaults_MiterLimit SkIntToScalar(4) 2573 2574status_t OpenGLRenderer::drawRect(float left, float top, float right, float bottom, 2575 const SkPaint* p) { 2576 if (currentSnapshot()->isIgnored() 2577 || quickRejectSetupScissor(left, top, right, bottom, p) 2578 || paintWillNotDraw(*p)) { 2579 return DrawGlInfo::kStatusDone; 2580 } 2581 2582 if (p->getStyle() != SkPaint::kFill_Style) { 2583 // only fill style is supported by drawConvexPath, since others have to handle joins 2584 if (p->getPathEffect() != 0 || p->getStrokeJoin() != SkPaint::kMiter_Join || 2585 p->getStrokeMiter() != SkPaintDefaults_MiterLimit) { 2586 mCaches.activeTexture(0); 2587 const PathTexture* texture = 2588 mCaches.pathCache.getRect(right - left, bottom - top, p); 2589 return drawShape(left, top, texture, p); 2590 } 2591 2592 SkPath path; 2593 SkRect rect = SkRect::MakeLTRB(left, top, right, bottom); 2594 if (p->getStyle() == SkPaint::kStrokeAndFill_Style) { 2595 rect.outset(p->getStrokeWidth() / 2, p->getStrokeWidth() / 2); 2596 } 2597 path.addRect(rect); 2598 return drawConvexPath(path, p); 2599 } 2600 2601 if (p->isAntiAlias() && !currentTransform()->isSimple()) { 2602 SkPath path; 2603 path.addRect(left, top, right, bottom); 2604 return drawConvexPath(path, p); 2605 } else { 2606 drawColorRect(left, top, right, bottom, p); 2607 return DrawGlInfo::kStatusDrew; 2608 } 2609} 2610 2611void OpenGLRenderer::drawTextShadow(const SkPaint* paint, const char* text, 2612 int bytesCount, int count, const float* positions, 2613 FontRenderer& fontRenderer, int alpha, float x, float y) { 2614 mCaches.activeTexture(0); 2615 2616 TextShadow textShadow; 2617 if (!getTextShadow(paint, &textShadow)) { 2618 LOG_ALWAYS_FATAL("failed to query shadow attributes"); 2619 } 2620 2621 // NOTE: The drop shadow will not perform gamma correction 2622 // if shader-based correction is enabled 2623 mCaches.dropShadowCache.setFontRenderer(fontRenderer); 2624 const ShadowTexture* shadow = mCaches.dropShadowCache.get( 2625 paint, text, bytesCount, count, textShadow.radius, positions); 2626 // If the drop shadow exceeds the max texture size or couldn't be 2627 // allocated, skip drawing 2628 if (!shadow) return; 2629 const AutoTexture autoCleanup(shadow); 2630 2631 const float sx = x - shadow->left + textShadow.dx; 2632 const float sy = y - shadow->top + textShadow.dy; 2633 2634 const int shadowAlpha = ((textShadow.color >> 24) & 0xFF) * mSnapshot->alpha; 2635 if (getShader(paint)) { 2636 textShadow.color = SK_ColorWHITE; 2637 } 2638 2639 setupDraw(); 2640 setupDrawWithTexture(true); 2641 setupDrawAlpha8Color(textShadow.color, shadowAlpha < 255 ? shadowAlpha : alpha); 2642 setupDrawColorFilter(getColorFilter(paint)); 2643 setupDrawShader(getShader(paint)); 2644 setupDrawBlending(paint, true); 2645 setupDrawProgram(); 2646 setupDrawModelView(kModelViewMode_TranslateAndScale, false, 2647 sx, sy, sx + shadow->width, sy + shadow->height); 2648 setupDrawTexture(shadow->id); 2649 setupDrawPureColorUniforms(); 2650 setupDrawColorFilterUniforms(getColorFilter(paint)); 2651 setupDrawShaderUniforms(getShader(paint)); 2652 setupDrawMesh(NULL, (GLvoid*) gMeshTextureOffset); 2653 2654 glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 2655} 2656 2657bool OpenGLRenderer::canSkipText(const SkPaint* paint) const { 2658 float alpha = (hasTextShadow(paint) ? 1.0f : paint->getAlpha()) * mSnapshot->alpha; 2659 return alpha == 0.0f && getXfermode(paint->getXfermode()) == SkXfermode::kSrcOver_Mode; 2660} 2661 2662status_t OpenGLRenderer::drawPosText(const char* text, int bytesCount, int count, 2663 const float* positions, const SkPaint* paint) { 2664 if (text == NULL || count == 0 || currentSnapshot()->isIgnored() || canSkipText(paint)) { 2665 return DrawGlInfo::kStatusDone; 2666 } 2667 2668 // NOTE: Skia does not support perspective transform on drawPosText yet 2669 if (!currentTransform()->isSimple()) { 2670 return DrawGlInfo::kStatusDone; 2671 } 2672 2673 mCaches.enableScissor(); 2674 2675 float x = 0.0f; 2676 float y = 0.0f; 2677 const bool pureTranslate = currentTransform()->isPureTranslate(); 2678 if (pureTranslate) { 2679 x = (int) floorf(x + currentTransform()->getTranslateX() + 0.5f); 2680 y = (int) floorf(y + currentTransform()->getTranslateY() + 0.5f); 2681 } 2682 2683 FontRenderer& fontRenderer = mCaches.fontRenderer->getFontRenderer(paint); 2684 fontRenderer.setFont(paint, SkMatrix::I()); 2685 2686 int alpha; 2687 SkXfermode::Mode mode; 2688 getAlphaAndMode(paint, &alpha, &mode); 2689 2690 if (CC_UNLIKELY(hasTextShadow(paint))) { 2691 drawTextShadow(paint, text, bytesCount, count, positions, fontRenderer, 2692 alpha, 0.0f, 0.0f); 2693 } 2694 2695 // Pick the appropriate texture filtering 2696 bool linearFilter = currentTransform()->changesBounds(); 2697 if (pureTranslate && !linearFilter) { 2698 linearFilter = fabs(y - (int) y) > 0.0f || fabs(x - (int) x) > 0.0f; 2699 } 2700 fontRenderer.setTextureFiltering(linearFilter); 2701 2702 const Rect* clip = pureTranslate ? mSnapshot->clipRect : &mSnapshot->getLocalClip(); 2703 Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 2704 2705 const bool hasActiveLayer = hasLayer(); 2706 2707 TextSetupFunctor functor(this, x, y, pureTranslate, alpha, mode, paint); 2708 if (fontRenderer.renderPosText(paint, clip, text, 0, bytesCount, count, x, y, 2709 positions, hasActiveLayer ? &bounds : NULL, &functor)) { 2710 if (hasActiveLayer) { 2711 if (!pureTranslate) { 2712 currentTransform()->mapRect(bounds); 2713 } 2714 dirtyLayerUnchecked(bounds, getRegion()); 2715 } 2716 } 2717 2718 return DrawGlInfo::kStatusDrew; 2719} 2720 2721bool OpenGLRenderer::findBestFontTransform(const mat4& transform, SkMatrix* outMatrix) const { 2722 if (CC_LIKELY(transform.isPureTranslate())) { 2723 outMatrix->setIdentity(); 2724 return false; 2725 } else if (CC_UNLIKELY(transform.isPerspective())) { 2726 outMatrix->setIdentity(); 2727 return true; 2728 } 2729 2730 /** 2731 * Input is a non-perspective, scaling transform. Generate a scale-only transform, 2732 * with values rounded to the nearest int. 2733 */ 2734 float sx, sy; 2735 transform.decomposeScale(sx, sy); 2736 outMatrix->setScale( 2737 roundf(fmaxf(1.0f, sx)), 2738 roundf(fmaxf(1.0f, sy))); 2739 return true; 2740} 2741 2742status_t OpenGLRenderer::drawText(const char* text, int bytesCount, int count, float x, float y, 2743 const float* positions, const SkPaint* paint, float totalAdvance, const Rect& bounds, 2744 DrawOpMode drawOpMode) { 2745 2746 if (drawOpMode == kDrawOpMode_Immediate) { 2747 // The checks for corner-case ignorable text and quick rejection is only done for immediate 2748 // drawing as ops from DeferredDisplayList are already filtered for these 2749 if (text == NULL || count == 0 || currentSnapshot()->isIgnored() || canSkipText(paint) || 2750 quickRejectSetupScissor(bounds)) { 2751 return DrawGlInfo::kStatusDone; 2752 } 2753 } 2754 2755 const float oldX = x; 2756 const float oldY = y; 2757 2758 const mat4& transform = *currentTransform(); 2759 const bool pureTranslate = transform.isPureTranslate(); 2760 2761 if (CC_LIKELY(pureTranslate)) { 2762 x = (int) floorf(x + transform.getTranslateX() + 0.5f); 2763 y = (int) floorf(y + transform.getTranslateY() + 0.5f); 2764 } 2765 2766 int alpha; 2767 SkXfermode::Mode mode; 2768 getAlphaAndMode(paint, &alpha, &mode); 2769 2770 FontRenderer& fontRenderer = mCaches.fontRenderer->getFontRenderer(paint); 2771 2772 if (CC_UNLIKELY(hasTextShadow(paint))) { 2773 fontRenderer.setFont(paint, SkMatrix::I()); 2774 drawTextShadow(paint, text, bytesCount, count, positions, fontRenderer, 2775 alpha, oldX, oldY); 2776 } 2777 2778 const bool hasActiveLayer = hasLayer(); 2779 2780 // We only pass a partial transform to the font renderer. That partial 2781 // matrix defines how glyphs are rasterized. Typically we want glyphs 2782 // to be rasterized at their final size on screen, which means the partial 2783 // matrix needs to take the scale factor into account. 2784 // When a partial matrix is used to transform glyphs during rasterization, 2785 // the mesh is generated with the inverse transform (in the case of scale, 2786 // the mesh is generated at 1.0 / scale for instance.) This allows us to 2787 // apply the full transform matrix at draw time in the vertex shader. 2788 // Applying the full matrix in the shader is the easiest way to handle 2789 // rotation and perspective and allows us to always generated quads in the 2790 // font renderer which greatly simplifies the code, clipping in particular. 2791 SkMatrix fontTransform; 2792 bool linearFilter = findBestFontTransform(transform, &fontTransform) 2793 || fabs(y - (int) y) > 0.0f 2794 || fabs(x - (int) x) > 0.0f; 2795 fontRenderer.setFont(paint, fontTransform); 2796 fontRenderer.setTextureFiltering(linearFilter); 2797 2798 // TODO: Implement better clipping for scaled/rotated text 2799 const Rect* clip = !pureTranslate ? NULL : currentClipRect(); 2800 Rect layerBounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 2801 2802 bool status; 2803 TextSetupFunctor functor(this, x, y, pureTranslate, alpha, mode, paint); 2804 2805 // don't call issuedrawcommand, do it at end of batch 2806 bool forceFinish = (drawOpMode != kDrawOpMode_Defer); 2807 if (CC_UNLIKELY(paint->getTextAlign() != SkPaint::kLeft_Align)) { 2808 SkPaint paintCopy(*paint); 2809 paintCopy.setTextAlign(SkPaint::kLeft_Align); 2810 status = fontRenderer.renderPosText(&paintCopy, clip, text, 0, bytesCount, count, x, y, 2811 positions, hasActiveLayer ? &layerBounds : NULL, &functor, forceFinish); 2812 } else { 2813 status = fontRenderer.renderPosText(paint, clip, text, 0, bytesCount, count, x, y, 2814 positions, hasActiveLayer ? &layerBounds : NULL, &functor, forceFinish); 2815 } 2816 2817 if ((status || drawOpMode != kDrawOpMode_Immediate) && hasActiveLayer) { 2818 if (!pureTranslate) { 2819 transform.mapRect(layerBounds); 2820 } 2821 dirtyLayerUnchecked(layerBounds, getRegion()); 2822 } 2823 2824 drawTextDecorations(totalAdvance, oldX, oldY, paint); 2825 2826 return DrawGlInfo::kStatusDrew; 2827} 2828 2829status_t OpenGLRenderer::drawTextOnPath(const char* text, int bytesCount, int count, 2830 const SkPath* path, float hOffset, float vOffset, const SkPaint* paint) { 2831 if (text == NULL || count == 0 || currentSnapshot()->isIgnored() || canSkipText(paint)) { 2832 return DrawGlInfo::kStatusDone; 2833 } 2834 2835 // TODO: avoid scissor by calculating maximum bounds using path bounds + font metrics 2836 mCaches.enableScissor(); 2837 2838 FontRenderer& fontRenderer = mCaches.fontRenderer->getFontRenderer(paint); 2839 fontRenderer.setFont(paint, SkMatrix::I()); 2840 fontRenderer.setTextureFiltering(true); 2841 2842 int alpha; 2843 SkXfermode::Mode mode; 2844 getAlphaAndMode(paint, &alpha, &mode); 2845 TextSetupFunctor functor(this, 0.0f, 0.0f, false, alpha, mode, paint); 2846 2847 const Rect* clip = &mSnapshot->getLocalClip(); 2848 Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 2849 2850 const bool hasActiveLayer = hasLayer(); 2851 2852 if (fontRenderer.renderTextOnPath(paint, clip, text, 0, bytesCount, count, path, 2853 hOffset, vOffset, hasActiveLayer ? &bounds : NULL, &functor)) { 2854 if (hasActiveLayer) { 2855 currentTransform()->mapRect(bounds); 2856 dirtyLayerUnchecked(bounds, getRegion()); 2857 } 2858 } 2859 2860 return DrawGlInfo::kStatusDrew; 2861} 2862 2863status_t OpenGLRenderer::drawPath(const SkPath* path, const SkPaint* paint) { 2864 if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone; 2865 2866 mCaches.activeTexture(0); 2867 2868 const PathTexture* texture = mCaches.pathCache.get(path, paint); 2869 if (!texture) return DrawGlInfo::kStatusDone; 2870 const AutoTexture autoCleanup(texture); 2871 2872 const float x = texture->left - texture->offset; 2873 const float y = texture->top - texture->offset; 2874 2875 drawPathTexture(texture, x, y, paint); 2876 2877 return DrawGlInfo::kStatusDrew; 2878} 2879 2880status_t OpenGLRenderer::drawLayer(Layer* layer, float x, float y) { 2881 if (!layer) { 2882 return DrawGlInfo::kStatusDone; 2883 } 2884 2885 mat4* transform = NULL; 2886 if (layer->isTextureLayer()) { 2887 transform = &layer->getTransform(); 2888 if (!transform->isIdentity()) { 2889 save(SkCanvas::kMatrix_SaveFlag); 2890 concatMatrix(*transform); 2891 } 2892 } 2893 2894 bool clipRequired = false; 2895 const bool rejected = calculateQuickRejectForScissor(x, y, 2896 x + layer->layer.getWidth(), y + layer->layer.getHeight(), &clipRequired, NULL, false); 2897 2898 if (rejected) { 2899 if (transform && !transform->isIdentity()) { 2900 restore(); 2901 } 2902 return DrawGlInfo::kStatusDone; 2903 } 2904 2905 EVENT_LOGD("drawLayer," RECT_STRING ", clipRequired %d", x, y, 2906 x + layer->layer.getWidth(), y + layer->layer.getHeight(), clipRequired); 2907 2908 updateLayer(layer, true); 2909 2910 mCaches.setScissorEnabled(mScissorOptimizationDisabled || clipRequired); 2911 mCaches.activeTexture(0); 2912 2913 if (CC_LIKELY(!layer->region.isEmpty())) { 2914 if (layer->region.isRect()) { 2915 DRAW_DOUBLE_STENCIL_IF(!layer->hasDrawnSinceUpdate, 2916 composeLayerRect(layer, layer->regionRect)); 2917 } else if (layer->mesh) { 2918 2919 const float a = getLayerAlpha(layer); 2920 setupDraw(); 2921 setupDrawWithTexture(); 2922 setupDrawColor(a, a, a, a); 2923 setupDrawColorFilter(layer->getColorFilter()); 2924 setupDrawBlending(layer); 2925 setupDrawProgram(); 2926 setupDrawPureColorUniforms(); 2927 setupDrawColorFilterUniforms(layer->getColorFilter()); 2928 setupDrawTexture(layer->getTexture()); 2929 if (CC_LIKELY(currentTransform()->isPureTranslate())) { 2930 int tx = (int) floorf(x + currentTransform()->getTranslateX() + 0.5f); 2931 int ty = (int) floorf(y + currentTransform()->getTranslateY() + 0.5f); 2932 2933 layer->setFilter(GL_NEAREST); 2934 setupDrawModelView(kModelViewMode_Translate, false, tx, ty, 2935 tx + layer->layer.getWidth(), ty + layer->layer.getHeight(), true); 2936 } else { 2937 layer->setFilter(GL_LINEAR); 2938 setupDrawModelView(kModelViewMode_Translate, false, x, y, 2939 x + layer->layer.getWidth(), y + layer->layer.getHeight()); 2940 } 2941 2942 TextureVertex* mesh = &layer->mesh[0]; 2943 GLsizei elementsCount = layer->meshElementCount; 2944 2945 while (elementsCount > 0) { 2946 GLsizei drawCount = min(elementsCount, (GLsizei) gMaxNumberOfQuads * 6); 2947 2948 setupDrawMeshIndices(&mesh[0].x, &mesh[0].u); 2949 DRAW_DOUBLE_STENCIL_IF(!layer->hasDrawnSinceUpdate, 2950 glDrawElements(GL_TRIANGLES, drawCount, GL_UNSIGNED_SHORT, NULL)); 2951 2952 elementsCount -= drawCount; 2953 // Though there are 4 vertices in a quad, we use 6 indices per 2954 // quad to draw with GL_TRIANGLES 2955 mesh += (drawCount / 6) * 4; 2956 } 2957 2958#if DEBUG_LAYERS_AS_REGIONS 2959 drawRegionRectsDebug(layer->region); 2960#endif 2961 } 2962 2963 if (layer->debugDrawUpdate) { 2964 layer->debugDrawUpdate = false; 2965 2966 SkPaint paint; 2967 paint.setColor(0x7f00ff00); 2968 drawColorRect(x, y, x + layer->layer.getWidth(), y + layer->layer.getHeight(), &paint); 2969 } 2970 } 2971 layer->hasDrawnSinceUpdate = true; 2972 2973 if (transform && !transform->isIdentity()) { 2974 restore(); 2975 } 2976 2977 return DrawGlInfo::kStatusDrew; 2978} 2979 2980/////////////////////////////////////////////////////////////////////////////// 2981// Draw filters 2982/////////////////////////////////////////////////////////////////////////////// 2983 2984void OpenGLRenderer::resetPaintFilter() { 2985 // when clearing the PaintFilter, the masks should also be cleared for simple DrawModifier 2986 // comparison, see MergingDrawBatch::canMergeWith 2987 mDrawModifiers.mHasDrawFilter = false; 2988 mDrawModifiers.mPaintFilterClearBits = 0; 2989 mDrawModifiers.mPaintFilterSetBits = 0; 2990} 2991 2992void OpenGLRenderer::setupPaintFilter(int clearBits, int setBits) { 2993 // TODO: don't bother with boolean, it's redundant with clear/set bits 2994 mDrawModifiers.mHasDrawFilter = true; 2995 mDrawModifiers.mPaintFilterClearBits = clearBits & SkPaint::kAllFlags; 2996 mDrawModifiers.mPaintFilterSetBits = setBits & SkPaint::kAllFlags; 2997} 2998 2999const SkPaint* OpenGLRenderer::filterPaint(const SkPaint* paint) { 3000 // TODO: use CompatFlagsDrawFilter here, and combine logic with android/graphics/DrawFilter.cpp 3001 // to avoid clobbering 0x02 paint flag 3002 3003 // Equivalent to the Java Paint's FILTER_BITMAP_FLAG. 3004 static const uint32_t sFilterBitmapFlag = 0x02; 3005 3006 if (CC_LIKELY(!mDrawModifiers.mHasDrawFilter || !paint)) { 3007 return paint; 3008 } 3009 3010 const uint32_t clearBits = mDrawModifiers.mPaintFilterClearBits; 3011 const uint32_t setBits = mDrawModifiers.mPaintFilterSetBits; 3012 3013 const uint32_t flags = (paint->getFlags() & ~clearBits) | setBits; 3014 mFilteredPaint = *paint; 3015 mFilteredPaint.setFlags(flags); 3016 3017 // check if paint filter trying to override bitmap filter 3018 if ((clearBits | setBits) & sFilterBitmapFlag) { 3019 mFilteredPaint.setFilterLevel(flags & sFilterBitmapFlag 3020 ? SkPaint::kLow_FilterLevel : SkPaint::kNone_FilterLevel); 3021 } 3022 3023 return &mFilteredPaint; 3024} 3025 3026/////////////////////////////////////////////////////////////////////////////// 3027// Drawing implementation 3028/////////////////////////////////////////////////////////////////////////////// 3029 3030Texture* OpenGLRenderer::getTexture(const SkBitmap* bitmap) { 3031 Texture* texture = mRenderState.assetAtlas().getEntryTexture(bitmap); 3032 if (!texture) { 3033 return mCaches.textureCache.get(bitmap); 3034 } 3035 return texture; 3036} 3037 3038void OpenGLRenderer::drawPathTexture(const PathTexture* texture, 3039 float x, float y, const SkPaint* paint) { 3040 if (quickRejectSetupScissor(x, y, x + texture->width, y + texture->height)) { 3041 return; 3042 } 3043 3044 int alpha; 3045 SkXfermode::Mode mode; 3046 getAlphaAndMode(paint, &alpha, &mode); 3047 3048 setupDraw(); 3049 setupDrawWithTexture(true); 3050 setupDrawAlpha8Color(paint->getColor(), alpha); 3051 setupDrawColorFilter(getColorFilter(paint)); 3052 setupDrawShader(getShader(paint)); 3053 setupDrawBlending(paint, true); 3054 setupDrawProgram(); 3055 setupDrawModelView(kModelViewMode_TranslateAndScale, false, 3056 x, y, x + texture->width, y + texture->height); 3057 setupDrawTexture(texture->id); 3058 setupDrawPureColorUniforms(); 3059 setupDrawColorFilterUniforms(getColorFilter(paint)); 3060 setupDrawShaderUniforms(getShader(paint)); 3061 setupDrawMesh(NULL, (GLvoid*) gMeshTextureOffset); 3062 3063 glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 3064} 3065 3066// Same values used by Skia 3067#define kStdStrikeThru_Offset (-6.0f / 21.0f) 3068#define kStdUnderline_Offset (1.0f / 9.0f) 3069#define kStdUnderline_Thickness (1.0f / 18.0f) 3070 3071void OpenGLRenderer::drawTextDecorations(float underlineWidth, float x, float y, 3072 const SkPaint* paint) { 3073 // Handle underline and strike-through 3074 uint32_t flags = paint->getFlags(); 3075 if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 3076 SkPaint paintCopy(*paint); 3077 3078 if (CC_LIKELY(underlineWidth > 0.0f)) { 3079 const float textSize = paintCopy.getTextSize(); 3080 const float strokeWidth = fmax(textSize * kStdUnderline_Thickness, 1.0f); 3081 3082 const float left = x; 3083 float top = 0.0f; 3084 3085 int linesCount = 0; 3086 if (flags & SkPaint::kUnderlineText_Flag) linesCount++; 3087 if (flags & SkPaint::kStrikeThruText_Flag) linesCount++; 3088 3089 const int pointsCount = 4 * linesCount; 3090 float points[pointsCount]; 3091 int currentPoint = 0; 3092 3093 if (flags & SkPaint::kUnderlineText_Flag) { 3094 top = y + textSize * kStdUnderline_Offset; 3095 points[currentPoint++] = left; 3096 points[currentPoint++] = top; 3097 points[currentPoint++] = left + underlineWidth; 3098 points[currentPoint++] = top; 3099 } 3100 3101 if (flags & SkPaint::kStrikeThruText_Flag) { 3102 top = y + textSize * kStdStrikeThru_Offset; 3103 points[currentPoint++] = left; 3104 points[currentPoint++] = top; 3105 points[currentPoint++] = left + underlineWidth; 3106 points[currentPoint++] = top; 3107 } 3108 3109 paintCopy.setStrokeWidth(strokeWidth); 3110 3111 drawLines(&points[0], pointsCount, &paintCopy); 3112 } 3113 } 3114} 3115 3116status_t OpenGLRenderer::drawRects(const float* rects, int count, const SkPaint* paint) { 3117 if (currentSnapshot()->isIgnored()) { 3118 return DrawGlInfo::kStatusDone; 3119 } 3120 3121 return drawColorRects(rects, count, paint, false, true, true); 3122} 3123 3124static void mapPointFakeZ(Vector3& point, const mat4& transformXY, const mat4& transformZ) { 3125 // map z coordinate with true 3d matrix 3126 point.z = transformZ.mapZ(point); 3127 3128 // map x,y coordinates with draw/Skia matrix 3129 transformXY.mapPoint(point.x, point.y); 3130} 3131 3132status_t OpenGLRenderer::drawShadow(float casterAlpha, 3133 const VertexBuffer* ambientShadowVertexBuffer, const VertexBuffer* spotShadowVertexBuffer) { 3134 if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone; 3135 3136 // TODO: use quickRejectWithScissor. For now, always force enable scissor. 3137 mCaches.enableScissor(); 3138 3139 SkPaint paint; 3140 paint.setAntiAlias(true); // want to use AlphaVertex 3141 3142 // The caller has made sure casterAlpha > 0. 3143 float ambientShadowAlpha = mAmbientShadowAlpha; 3144 if (CC_UNLIKELY(mCaches.propertyAmbientShadowStrength >= 0)) { 3145 ambientShadowAlpha = mCaches.propertyAmbientShadowStrength; 3146 } 3147 if (ambientShadowVertexBuffer && ambientShadowAlpha > 0) { 3148 paint.setARGB(casterAlpha * ambientShadowAlpha, 0, 0, 0); 3149 drawVertexBuffer(*ambientShadowVertexBuffer, &paint, kVertexBuffer_ShadowInterp); 3150 } 3151 3152 float spotShadowAlpha = mSpotShadowAlpha; 3153 if (CC_UNLIKELY(mCaches.propertySpotShadowStrength >= 0)) { 3154 spotShadowAlpha = mCaches.propertySpotShadowStrength; 3155 } 3156 if (spotShadowVertexBuffer && spotShadowAlpha > 0) { 3157 paint.setARGB(casterAlpha * spotShadowAlpha, 0, 0, 0); 3158 drawVertexBuffer(*spotShadowVertexBuffer, &paint, kVertexBuffer_ShadowInterp); 3159 } 3160 3161 return DrawGlInfo::kStatusDrew; 3162} 3163 3164status_t OpenGLRenderer::drawColorRects(const float* rects, int count, const SkPaint* paint, 3165 bool ignoreTransform, bool dirty, bool clip) { 3166 if (count == 0) { 3167 return DrawGlInfo::kStatusDone; 3168 } 3169 3170 int color = paint->getColor(); 3171 // If a shader is set, preserve only the alpha 3172 if (getShader(paint)) { 3173 color |= 0x00ffffff; 3174 } 3175 3176 float left = FLT_MAX; 3177 float top = FLT_MAX; 3178 float right = FLT_MIN; 3179 float bottom = FLT_MIN; 3180 3181 Vertex mesh[count]; 3182 Vertex* vertex = mesh; 3183 3184 for (int index = 0; index < count; index += 4) { 3185 float l = rects[index + 0]; 3186 float t = rects[index + 1]; 3187 float r = rects[index + 2]; 3188 float b = rects[index + 3]; 3189 3190 Vertex::set(vertex++, l, t); 3191 Vertex::set(vertex++, r, t); 3192 Vertex::set(vertex++, l, b); 3193 Vertex::set(vertex++, r, b); 3194 3195 left = fminf(left, l); 3196 top = fminf(top, t); 3197 right = fmaxf(right, r); 3198 bottom = fmaxf(bottom, b); 3199 } 3200 3201 if (clip && quickRejectSetupScissor(left, top, right, bottom)) { 3202 return DrawGlInfo::kStatusDone; 3203 } 3204 3205 setupDraw(); 3206 setupDrawNoTexture(); 3207 setupDrawColor(color, ((color >> 24) & 0xFF) * currentSnapshot()->alpha); 3208 setupDrawShader(getShader(paint)); 3209 setupDrawColorFilter(getColorFilter(paint)); 3210 setupDrawBlending(paint); 3211 setupDrawProgram(); 3212 setupDrawDirtyRegionsDisabled(); 3213 setupDrawModelView(kModelViewMode_Translate, false, 3214 0.0f, 0.0f, 0.0f, 0.0f, ignoreTransform); 3215 setupDrawColorUniforms(getShader(paint)); 3216 setupDrawShaderUniforms(getShader(paint)); 3217 setupDrawColorFilterUniforms(getColorFilter(paint)); 3218 3219 if (dirty && hasLayer()) { 3220 dirtyLayer(left, top, right, bottom, *currentTransform()); 3221 } 3222 3223 issueIndexedQuadDraw(&mesh[0], count / 4); 3224 3225 return DrawGlInfo::kStatusDrew; 3226} 3227 3228void OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 3229 const SkPaint* paint, bool ignoreTransform) { 3230 int color = paint->getColor(); 3231 // If a shader is set, preserve only the alpha 3232 if (getShader(paint)) { 3233 color |= 0x00ffffff; 3234 } 3235 3236 setupDraw(); 3237 setupDrawNoTexture(); 3238 setupDrawColor(color, ((color >> 24) & 0xFF) * currentSnapshot()->alpha); 3239 setupDrawShader(getShader(paint)); 3240 setupDrawColorFilter(getColorFilter(paint)); 3241 setupDrawBlending(paint); 3242 setupDrawProgram(); 3243 setupDrawModelView(kModelViewMode_TranslateAndScale, false, 3244 left, top, right, bottom, ignoreTransform); 3245 setupDrawColorUniforms(getShader(paint)); 3246 setupDrawShaderUniforms(getShader(paint), ignoreTransform); 3247 setupDrawColorFilterUniforms(getColorFilter(paint)); 3248 setupDrawSimpleMesh(); 3249 3250 glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 3251} 3252 3253void OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 3254 Texture* texture, const SkPaint* paint) { 3255 texture->setWrap(GL_CLAMP_TO_EDGE, true); 3256 3257 GLvoid* vertices = (GLvoid*) NULL; 3258 GLvoid* texCoords = (GLvoid*) gMeshTextureOffset; 3259 3260 if (texture->uvMapper) { 3261 vertices = &mMeshVertices[0].x; 3262 texCoords = &mMeshVertices[0].u; 3263 3264 Rect uvs(0.0f, 0.0f, 1.0f, 1.0f); 3265 texture->uvMapper->map(uvs); 3266 3267 resetDrawTextureTexCoords(uvs.left, uvs.top, uvs.right, uvs.bottom); 3268 } 3269 3270 if (CC_LIKELY(currentTransform()->isPureTranslate())) { 3271 const float x = (int) floorf(left + currentTransform()->getTranslateX() + 0.5f); 3272 const float y = (int) floorf(top + currentTransform()->getTranslateY() + 0.5f); 3273 3274 texture->setFilter(GL_NEAREST, true); 3275 drawTextureMesh(x, y, x + texture->width, y + texture->height, texture->id, 3276 paint, texture->blend, vertices, texCoords, 3277 GL_TRIANGLE_STRIP, gMeshCount, false, true); 3278 } else { 3279 texture->setFilter(getFilter(paint), true); 3280 drawTextureMesh(left, top, right, bottom, texture->id, paint, 3281 texture->blend, vertices, texCoords, GL_TRIANGLE_STRIP, gMeshCount); 3282 } 3283 3284 if (texture->uvMapper) { 3285 resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 3286 } 3287} 3288 3289void OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 3290 GLuint texture, const SkPaint* paint, bool blend, 3291 GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 3292 bool swapSrcDst, bool ignoreTransform, GLuint vbo, 3293 ModelViewMode modelViewMode, bool dirty) { 3294 3295 int a; 3296 SkXfermode::Mode mode; 3297 getAlphaAndMode(paint, &a, &mode); 3298 const float alpha = a / 255.0f; 3299 3300 setupDraw(); 3301 setupDrawWithTexture(); 3302 setupDrawColor(alpha, alpha, alpha, alpha); 3303 setupDrawColorFilter(getColorFilter(paint)); 3304 setupDrawBlending(paint, blend, swapSrcDst); 3305 setupDrawProgram(); 3306 if (!dirty) setupDrawDirtyRegionsDisabled(); 3307 setupDrawModelView(modelViewMode, false, left, top, right, bottom, ignoreTransform); 3308 setupDrawTexture(texture); 3309 setupDrawPureColorUniforms(); 3310 setupDrawColorFilterUniforms(getColorFilter(paint)); 3311 setupDrawMesh(vertices, texCoords, vbo); 3312 3313 glDrawArrays(drawMode, 0, elementsCount); 3314} 3315 3316void OpenGLRenderer::drawIndexedTextureMesh(float left, float top, float right, float bottom, 3317 GLuint texture, const SkPaint* paint, bool blend, 3318 GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 3319 bool swapSrcDst, bool ignoreTransform, GLuint vbo, 3320 ModelViewMode modelViewMode, bool dirty) { 3321 3322 int a; 3323 SkXfermode::Mode mode; 3324 getAlphaAndMode(paint, &a, &mode); 3325 const float alpha = a / 255.0f; 3326 3327 setupDraw(); 3328 setupDrawWithTexture(); 3329 setupDrawColor(alpha, alpha, alpha, alpha); 3330 setupDrawColorFilter(getColorFilter(paint)); 3331 setupDrawBlending(paint, blend, swapSrcDst); 3332 setupDrawProgram(); 3333 if (!dirty) setupDrawDirtyRegionsDisabled(); 3334 setupDrawModelView(modelViewMode, false, left, top, right, bottom, ignoreTransform); 3335 setupDrawTexture(texture); 3336 setupDrawPureColorUniforms(); 3337 setupDrawColorFilterUniforms(getColorFilter(paint)); 3338 setupDrawMeshIndices(vertices, texCoords, vbo); 3339 3340 glDrawElements(drawMode, elementsCount, GL_UNSIGNED_SHORT, NULL); 3341} 3342 3343void OpenGLRenderer::drawAlpha8TextureMesh(float left, float top, float right, float bottom, 3344 GLuint texture, const SkPaint* paint, 3345 GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 3346 bool ignoreTransform, ModelViewMode modelViewMode, bool dirty) { 3347 3348 int color = paint != NULL ? paint->getColor() : 0; 3349 int alpha; 3350 SkXfermode::Mode mode; 3351 getAlphaAndMode(paint, &alpha, &mode); 3352 3353 setupDraw(); 3354 setupDrawWithTexture(true); 3355 if (paint != NULL) { 3356 setupDrawAlpha8Color(color, alpha); 3357 } 3358 setupDrawColorFilter(getColorFilter(paint)); 3359 setupDrawShader(getShader(paint)); 3360 setupDrawBlending(paint, true); 3361 setupDrawProgram(); 3362 if (!dirty) setupDrawDirtyRegionsDisabled(); 3363 setupDrawModelView(modelViewMode, false, left, top, right, bottom, ignoreTransform); 3364 setupDrawTexture(texture); 3365 setupDrawPureColorUniforms(); 3366 setupDrawColorFilterUniforms(getColorFilter(paint)); 3367 setupDrawShaderUniforms(getShader(paint), ignoreTransform); 3368 setupDrawMesh(vertices, texCoords); 3369 3370 glDrawArrays(drawMode, 0, elementsCount); 3371} 3372 3373void OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 3374 ProgramDescription& description, bool swapSrcDst) { 3375 3376 if (mSnapshot->roundRectClipState != NULL /*&& !mSkipOutlineClip*/) { 3377 blend = true; 3378 mDescription.hasRoundRectClip = true; 3379 } 3380 mSkipOutlineClip = true; 3381 3382 blend = blend || mode != SkXfermode::kSrcOver_Mode; 3383 3384 if (blend) { 3385 // These blend modes are not supported by OpenGL directly and have 3386 // to be implemented using shaders. Since the shader will perform 3387 // the blending, turn blending off here 3388 // If the blend mode cannot be implemented using shaders, fall 3389 // back to the default SrcOver blend mode instead 3390 if (CC_UNLIKELY(mode > SkXfermode::kScreen_Mode)) { 3391 if (CC_UNLIKELY(mExtensions.hasFramebufferFetch())) { 3392 description.framebufferMode = mode; 3393 description.swapSrcDst = swapSrcDst; 3394 3395 if (mCaches.blend) { 3396 glDisable(GL_BLEND); 3397 mCaches.blend = false; 3398 } 3399 3400 return; 3401 } else { 3402 mode = SkXfermode::kSrcOver_Mode; 3403 } 3404 } 3405 3406 if (!mCaches.blend) { 3407 glEnable(GL_BLEND); 3408 } 3409 3410 GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 3411 GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 3412 3413 if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 3414 glBlendFunc(sourceMode, destMode); 3415 mCaches.lastSrcMode = sourceMode; 3416 mCaches.lastDstMode = destMode; 3417 } 3418 } else if (mCaches.blend) { 3419 glDisable(GL_BLEND); 3420 } 3421 mCaches.blend = blend; 3422} 3423 3424bool OpenGLRenderer::useProgram(Program* program) { 3425 if (!program->isInUse()) { 3426 if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 3427 program->use(); 3428 mCaches.currentProgram = program; 3429 return false; 3430 } 3431 return true; 3432} 3433 3434void OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 3435 TextureVertex* v = &mMeshVertices[0]; 3436 TextureVertex::setUV(v++, u1, v1); 3437 TextureVertex::setUV(v++, u2, v1); 3438 TextureVertex::setUV(v++, u1, v2); 3439 TextureVertex::setUV(v++, u2, v2); 3440} 3441 3442void OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) const { 3443 getAlphaAndModeDirect(paint, alpha, mode); 3444 if (mDrawModifiers.mOverrideLayerAlpha < 1.0f) { 3445 // if drawing a layer, ignore the paint's alpha 3446 *alpha = mDrawModifiers.mOverrideLayerAlpha * 255; 3447 } 3448 *alpha *= currentSnapshot()->alpha; 3449} 3450 3451float OpenGLRenderer::getLayerAlpha(const Layer* layer) const { 3452 float alpha; 3453 if (mDrawModifiers.mOverrideLayerAlpha < 1.0f) { 3454 alpha = mDrawModifiers.mOverrideLayerAlpha; 3455 } else { 3456 alpha = layer->getAlpha() / 255.0f; 3457 } 3458 return alpha * currentSnapshot()->alpha; 3459} 3460 3461}; // namespace uirenderer 3462}; // namespace android 3463