OpenGLRenderer.cpp revision ec19b4a764d512091a780fc93ced567dfbf80914
1e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy/* 2e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Copyright (C) 2010 The Android Open Source Project 3e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 4e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * you may not use this file except in compliance with the License. 6e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * You may obtain a copy of the License at 7e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 8e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * 10e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * Unless required by applicable law or agreed to in writing, software 11e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * See the License for the specific language governing permissions and 14e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy * limitations under the License. 15e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy */ 16e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 1785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#define LOG_TAG "OpenGLRenderer" 18e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 19e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy#include <stdlib.h> 20e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy#include <stdint.h> 21e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy#include <sys/types.h> 22e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 23bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#include <SkCanvas.h> 24694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <SkTypeface.h> 255cbbce535744b89df5ecea95de21ee3733298260Romain Guy 265cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <utils/Log.h> 27e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy#include <utils/StopWatch.h> 2885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 2908aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy#include <private/hwui/DrawGlInfo.h> 3008aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy 315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#include <ui/Rect.h> 325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 3385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "OpenGLRenderer.h" 340fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy#include "DisplayListRenderer.h" 35a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy#include "Vector.h" 36e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 37e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 389d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 399d5316e3f56d138504565ff311145ac01621dff4Romain Guy 409d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 419d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 429d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 439d5316e3f56d138504565ff311145ac01621dff4Romain Guy 44759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define RAD_TO_DEG (180.0f / 3.14159265f) 45759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define MIN_ANGLE 0.001f 46759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 47dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy// TODO: This should be set in properties 48dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy#define ALPHA_THRESHOLD (0x7f / PANEL_BIT_DEPTH) 49dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 509d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 519d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 529d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 539d5316e3f56d138504565ff311145ac01621dff4Romain Guy 54889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 55889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 56889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 57889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 58889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 59889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 60889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 61889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 62889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 63026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 64026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 66f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 67b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 68b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 69b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 70b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 71b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 72b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 73b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 74b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 75b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 76b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 77b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 79e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 8087a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// This array contains the swapped version of each SkXfermode. For instance 8187a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// this array's SrcOver blending mode is actually DstOver. You can refer to 8287a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// createLayer() for more information on the purpose of this array. 83f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guystatic const Blender gBlendsSwap[] = { 84f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy { SkXfermode::kClear_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 85b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE }, 86b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDst_Mode, GL_ONE, GL_ZERO }, 87b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 88b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 89b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 90b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO }, 91b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 92b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 93b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 94b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 95b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 96f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy}; 97f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 98889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 99b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy GL_TEXTURE0, 100b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy GL_TEXTURE1, 101b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy GL_TEXTURE2 102d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 103d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 104f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 105f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 106f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 107f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 108fb8b763f762ae21923c58d64caa729b012f40e05Romain GuyOpenGLRenderer::OpenGLRenderer(): mCaches(Caches::getInstance()) { 10906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 110db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1111e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 112026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 113ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 114ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 115ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 116e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 117e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 11885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 11929d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // The context has already been destroyed at this point, do not call 12029d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // GL APIs. All GL state should be kept in Caches.h 121e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 122e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 123f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 124f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 125f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 126f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 12785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 12808ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 129260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 130bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 131bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 132bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 133eb99356a0548684a501766e6a524529ab93304c8Romain Guy 134eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->height = height; 135eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->viewport.set(0, 0, width, height); 136746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 137746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 138e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 139e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 1406b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guyvoid OpenGLRenderer::prepare(bool opaque) { 1417d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guy prepareDirty(0.0f, 0.0f, mWidth, mHeight, opaque); 1427d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guy} 1437d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guy 1447d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guyvoid OpenGLRenderer::prepareDirty(float left, float top, float right, float bottom, bool opaque) { 145fe48f65922d4a3cc4aefe058cee5acec51504a20Romain Guy mCaches.clearGarbage(); 146fe48f65922d4a3cc4aefe058cee5acec51504a20Romain Guy 1478aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1488aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 14984962f2fe6ce779c583cc54b11a9de2b6a568117Romain Guy mSnapshot->fbo = getTargetFbo(); 15084962f2fe6ce779c583cc54b11a9de2b6a568117Romain Guy 1518fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 152f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 153fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 154d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 155bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1567d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guy glEnable(GL_SCISSOR_TEST); 1577d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guy glScissor(left, mSnapshot->height - bottom, right - left, bottom - top); 1587d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guy mSnapshot->setClip(left, top, right, bottom); 1597d7b5490a0b0763e831b31bc11f17d8159b5914aRomain Guy 1606b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy if (!opaque) { 1616b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 1626b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClear(GL_COLOR_BUFFER_BIT); 1636b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy } 164bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 165bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 166b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guyvoid OpenGLRenderer::finish() { 167b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#if DEBUG_OPENGL 168b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy GLenum status = GL_NO_ERROR; 169b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy while ((status = glGetError()) != GL_NO_ERROR) { 170b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy LOGD("GL error from OpenGLRenderer: 0x%x", status); 171a07105b7d2a27e6d69407bf96ddb773bddb5e553Romain Guy switch (status) { 172a07105b7d2a27e6d69407bf96ddb773bddb5e553Romain Guy case GL_OUT_OF_MEMORY: 173a07105b7d2a27e6d69407bf96ddb773bddb5e553Romain Guy LOGE(" OpenGLRenderer is out of memory!"); 174a07105b7d2a27e6d69407bf96ddb773bddb5e553Romain Guy break; 175a07105b7d2a27e6d69407bf96ddb773bddb5e553Romain Guy } 176b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 177b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#endif 178c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy#if DEBUG_MEMORY_USAGE 179c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy mCaches.dumpMemoryUsage(); 180e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy#else 181e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy if (mCaches.getDebugLevel() & kDebugMemory) { 182e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy mCaches.dumpMemoryUsage(); 183e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy } 184c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy#endif 185b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy} 186b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy 1876c319ca1275c8db892c39b48fc54864c949f9171Romain Guyvoid OpenGLRenderer::interrupt() { 188da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 189da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 190da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 191da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 192da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 193da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 19450c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.unbindMeshBuffer(); 195da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 196da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 1976c319ca1275c8db892c39b48fc54864c949f9171Romain Guyvoid OpenGLRenderer::resume() { 198eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 199da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 200da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 201746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 202da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 203f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glDisable(GL_DITHER); 204f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 20542f3a4b7c35dd1ea1922356eb3611af8cde05179Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, getTargetFbo()); 20603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 20750c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy 20850c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.blend = true; 20950c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glEnable(GL_BLEND); 21050c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 21150c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendEquation(GL_FUNC_ADD); 212da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 213da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 214cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guybool OpenGLRenderer::callDrawGLFunction(Functor *functor, Rect& dirty) { 215daf98e941e140e8739458126640183b9f296a2abChet Haase interrupt(); 216f90f8171e6acb56f9f87093c01fd586f2140697aRomain Guy if (mDirtyClip) { 217f90f8171e6acb56f9f87093c01fd586f2140697aRomain Guy setScissorFromClip(); 218f90f8171e6acb56f9f87093c01fd586f2140697aRomain Guy } 219d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy 22080911b851764b073310fd0bffdf4a7db0d8fdd0bRomain Guy Rect clip(*mSnapshot->clipRect); 22180911b851764b073310fd0bffdf4a7db0d8fdd0bRomain Guy clip.snapToPixelBoundaries(); 22280911b851764b073310fd0bffdf4a7db0d8fdd0bRomain Guy 223d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy#if RENDER_LAYERS_AS_REGIONS 224d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy // Since we don't know what the functor will draw, let's dirty 225d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy // tne entire clip region 226d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy if (hasLayer()) { 227d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy dirtyLayerUnchecked(clip, getRegion()); 228d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy } 229d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy#endif 230d643bb56fdf21973ea75984f0816b7dc024698dfRomain Guy 23108aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy DrawGlInfo info; 23208aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy info.clipLeft = clip.left; 23308aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy info.clipTop = clip.top; 23408aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy info.clipRight = clip.right; 23508aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy info.clipBottom = clip.bottom; 23608aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy info.isLayer = hasLayer(); 23708aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy getSnapshot()->transform->copyTo(&info.transform[0]); 23880911b851764b073310fd0bffdf4a7db0d8fdd0bRomain Guy 23908aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy status_t result = (*functor)(0, &info); 240cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guy 241cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guy if (result != 0) { 24208aa2cbd5e62e7ca140f78f8bea0477a19880fd9Romain Guy Rect localDirty(info.dirtyLeft, info.dirtyTop, info.dirtyRight, info.dirtyBottom); 243cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guy dirty.unionWith(localDirty); 244cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guy } 245cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guy 246daf98e941e140e8739458126640183b9f296a2abChet Haase resume(); 247cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guy return result != 0; 248daf98e941e140e8739458126640183b9f296a2abChet Haase} 249daf98e941e140e8739458126640183b9f296a2abChet Haase 250f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 251f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 252f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 253f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 254bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 2557ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 256bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 257bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 258bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2598aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 260bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 261bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 262bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2632542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2642542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2657ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 266bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 267bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 268bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2698fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 270bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2718fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2722542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2737ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 274bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 275bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2768aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 2778aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 2788fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 279bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 280bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 281bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2827ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 283bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 284eb99356a0548684a501766e6a524529ab93304c8Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 285bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 286bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2877ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 288bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 289eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (restoreOrtho) { 290eb99356a0548684a501766e6a524529ab93304c8Romain Guy Rect& r = previous->viewport; 291eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 292eb99356a0548684a501766e6a524529ab93304c8Romain Guy mOrthoMatrix.load(current->orthoMatrix); 293eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 294eb99356a0548684a501766e6a524529ab93304c8Romain Guy 2958b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2968b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2978b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 2982542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 299746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 3008fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 3012542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 3025ec9924d24495822b589f1a17996655d66273b30Romain Guy if (restoreLayer) { 3035ec9924d24495822b589f1a17996655d66273b30Romain Guy composeLayer(current, previous); 3045ec9924d24495822b589f1a17996655d66273b30Romain Guy } 3055ec9924d24495822b589f1a17996655d66273b30Romain Guy 3062542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 307d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 3085cbbce535744b89df5ecea95de21ee3733298260Romain Guy 309f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 310bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 311bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 312bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 313bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 3145c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* p, int flags) { 315eb99356a0548684a501766e6a524529ab93304c8Romain Guy const GLuint previousFbo = mSnapshot->fbo; 316eb99356a0548684a501766e6a524529ab93304c8Romain Guy const int count = saveSnapshot(flags); 317d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 318af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy if (!mSnapshot->isIgnored()) { 319e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy int alpha = 255; 320e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy SkXfermode::Mode mode; 321e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 322e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (p) { 323e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy alpha = p->getAlpha(); 324e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 325e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 326e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!isMode) { 327e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // Assume SRC_OVER 328e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 329e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } 330e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } else { 331e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = getXfermode(p->getXfermode()); 332a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 333a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 334e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 335d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 336d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 337dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags, previousFbo); 338dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 339d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 340d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 341bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 342bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 343bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 344bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 3455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (alpha >= 255 - ALPHA_THRESHOLD) { 3468aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 3478b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 3488aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 3498aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 3508aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 3518b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 352d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 353bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3541c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 3551c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Layers are viewed by Skia are slightly different than layers in image editing 3561c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * programs (for instance.) When a layer is created, previously created layers 3571c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * and the frame buffer still receive every drawing command. For instance, if a 3581c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * layer is created and a shape intersecting the bounds of the layers and the 3591c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * framebuffer is draw, the shape will be drawn on both (unless the layer was 3601c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 3611c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3621c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * A way to implement layers is to create an FBO for each layer, backed by an RGBA 3631c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * texture. Unfortunately, this is inefficient as it requires every primitive to 3641c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be drawn n + 1 times, where n is the number of active layers. In practice this 3651c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * means, for every primitive: 3661c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Switch active frame buffer 3671c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Change viewport, clip and projection matrix 3681c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Issue the drawing 3691c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3701c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Switching rendering target n + 1 times per drawn primitive is extremely costly. 3716b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * To avoid this, layers are implemented in a different way here, at least in the 3726b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * general case. FBOs are used, as an optimization, when the "clip to layer" flag 3736b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * is set. When this flag is set we can redirect all drawing operations into a 3746b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * single FBO. 3751c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3761c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * This implementation relies on the frame buffer being at least RGBA 8888. When 3771c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * a layer is created, only a texture is created, not an FBO. The content of the 3781c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer contained within the layer's bounds is copied into this texture 37987a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame 3801c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * buffer and drawing continues as normal. This technique therefore treats the 3811c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer as a scratch buffer for the layers. 3821c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3831c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To compose the layers back onto the frame buffer, each layer texture 3841c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * (containing the original frame buffer data) is drawn as a simple quad over 3851c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * the frame buffer. The trick is that the quad is set as the composition 3861c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * destination in the blending equation, and the frame buffer becomes the source 3871c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * of the composition. 3881c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3891c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Drawing layers with an alpha value requires an extra step before composition. 3901c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * An empty quad is drawn over the layer's region in the frame buffer. This quad 3911c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 3921c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * quad is used to multiply the colors in the frame buffer. This is achieved by 3931c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * changing the GL blend functions for the GL_FUNC_ADD blend equation to 3941c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * GL_ZERO, GL_SRC_ALPHA. 3951c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3961c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Because glCopyTexImage2D() can be slow, an alternative implementation might 3971c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be use to draw a single clipped layer. The implementation described above 3981c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is correct in every case. 39987a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * 40087a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * (1) The frame buffer is actually not cleared right away. To allow the GPU 40187a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * to potentially optimize series of calls to glCopyTexImage2D, the frame 40287a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * buffer is left untouched until the first drawing operation. Only when 40387a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * something actually gets drawn are the layers regions cleared. 4041c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 405d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 406eb99356a0548684a501766e6a524529ab93304c8Romain Guy float right, float bottom, int alpha, SkXfermode::Mode mode, 407eb99356a0548684a501766e6a524529ab93304c8Romain Guy int flags, GLuint previousFbo) { 408eb99356a0548684a501766e6a524529ab93304c8Romain Guy LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top); 409fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 410dda570201ac851dd85af3861f7e575721d3345daRomain Guy 411eb99356a0548684a501766e6a524529ab93304c8Romain Guy const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag; 412eb99356a0548684a501766e6a524529ab93304c8Romain Guy 413f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Window coordinates of the layer 4148aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 4157b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy if (!fboLayer) { 416eb99356a0548684a501766e6a524529ab93304c8Romain Guy mSnapshot->transform->mapRect(bounds); 417ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 418eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Layers only make sense if they are in the framebuffer's bounds 419ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy if (bounds.intersect(*snapshot->clipRect)) { 420ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy // We cannot work with sub-pixels in this case 421ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy bounds.snapToPixelBoundaries(); 422ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy 423ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy // When the layer is not an FBO, we may use glCopyTexImage so we 424ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy // need to make sure the layer does not extend outside the bounds 425ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy // of the framebuffer 426ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy if (!bounds.intersect(snapshot->previous->viewport)) { 427ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy bounds.setEmpty(); 428ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy } 429ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy } else { 430ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy bounds.setEmpty(); 431ad37cd3b5d3de9dd0858af04fbccd102e8ff4b0eRomain Guy } 432eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 433bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy 434746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (bounds.isEmpty() || bounds.getWidth() > mCaches.maxTextureSize || 435746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bounds.getHeight() > mCaches.maxTextureSize) { 43632963c393a804db2cd86c24443c2f1c6eee6064bRomain Guy snapshot->empty = fboLayer; 437dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } else { 438e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy snapshot->invisible = snapshot->invisible || (alpha <= ALPHA_THRESHOLD && fboLayer); 439dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 440dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 441dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy // Bail out if we won't draw in this snapshot 442af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy if (snapshot->invisible || snapshot->empty) { 443b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy return false; 444b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 445dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glActiveTexture(gTextureUnits[0]); 4478550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy Layer* layer = mCaches.layerCache.get(bounds.getWidth(), bounds.getHeight()); 448f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 449f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 450bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 451bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 4529ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setAlpha(alpha, mode); 4538aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 4549ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->texCoords.set(0.0f, bounds.getHeight() / float(layer->getHeight()), 4559ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy bounds.getWidth() / float(layer->getWidth()), 0.0f); 4569ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setColorFilter(mColorFilter); 457dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4588fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 4598fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 460dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 4611d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 462eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 4635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return createFboLayer(layer, bounds, snapshot, previousFbo); 464eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 465eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Copy the framebuffer into the layer 4669ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->bindTexture(); 467514fb18827186591d66973c2362c859b64b63556Romain Guy if (!bounds.isEmpty()) { 4689ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (layer->isEmpty()) { 4699ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4709ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy bounds.left, snapshot->height - bounds.bottom, 4719ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->getWidth(), layer->getHeight(), 0); 4729ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setEmpty(false); 473514fb18827186591d66973c2362c859b64b63556Romain Guy } else { 474514fb18827186591d66973c2362c859b64b63556Romain Guy glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bounds.left, 475514fb18827186591d66973c2362c859b64b63556Romain Guy snapshot->height - bounds.bottom, bounds.getWidth(), bounds.getHeight()); 476514fb18827186591d66973c2362c859b64b63556Romain Guy } 4777b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy 47854be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy // Enqueue the buffer coordinates to clear the corresponding region later 47954be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy mLayers.push(new Rect(bounds)); 480ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } 481eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 482f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 483d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 484bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 485bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 4865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guybool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, sp<Snapshot> snapshot, 4875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLuint previousFbo) { 4889ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFbo(mCaches.fboCache.get()); 4895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 4915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->region = &snapshot->layer->region; 4925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagFboTarget; 4935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clip(bounds); 4965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->transform->mapRect(clip); 4975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(*snapshot->clipRect); 4985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(snapshot->previous->viewport); 5005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 inverse; 5025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.loadInverse(*mSnapshot->transform); 5035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.mapRect(clip); 5055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 5065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(bounds); 5075ec9924d24495822b589f1a17996655d66273b30Romain Guy clip.translate(-bounds.left, -bounds.top); 5085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagIsFboLayer; 5109ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy snapshot->fbo = layer->getFbo(); 5115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 5125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom); 5135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 5145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->height = bounds.getHeight(); 5155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 5165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 5175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Bind texture to FBO 5199ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->getFbo()); 5209ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->bindTexture(); 5215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Initialize the texture if needed 5239ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (layer->isEmpty()) { 5249ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->allocateTexture(GL_RGBA, GL_UNSIGNED_BYTE); 5259ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setEmpty(false); 5265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 5275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 5299ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->getTexture(), 0); 5305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 5325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); 5335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (status != GL_FRAMEBUFFER_COMPLETE) { 5345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy LOGE("Framebuffer incomplete (GL error code 0x%x)", status); 5355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 5379ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->deleteTexture(); 5389ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy mCaches.fboCache.put(layer->getFbo()); 5395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy delete layer; 5415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return false; 5435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 5445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 5455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the FBO, expand the clear region by 1 to get nice bilinear filtering 5475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(clip.left - 1.0f, bounds.getHeight() - clip.bottom - 1.0f, 5485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.getWidth() + 2.0f, clip.getHeight() + 2.0f); 5495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 5505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 5515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 5535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Change the ortho projection 5555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 5565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 5575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return true; 5595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5611c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 5621c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Read the documentation of createLayer() before doing anything in this method. 5631c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 5641d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 5651d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 5661d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 5671d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 5681d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5691d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool fboLayer = current->flags & Snapshot::kFlagIsFboLayer; 571eb99356a0548684a501766e6a524529ab93304c8Romain Guy 572eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 573eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Unbind current FBO and restore previous one 574eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 575eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 576eb99356a0548684a501766e6a524529ab93304c8Romain Guy 5771d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 5781d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 5791d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5809ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (!fboLayer && layer->getAlpha() < 255) { 581f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawColorRect(rect.left, rect.top, rect.right, rect.bottom, 5829ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->getAlpha() << 24, SkXfermode::kDstIn_Mode, true); 5835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Required below, composeLayerRect() will divide by 255 5849ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setAlpha(255); 585f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 586f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 58703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 5888b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 589746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 5905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // When the layer is stored in an FBO, we can save a bit of fillrate by 5925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // drawing only the dirty region 593eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 5945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom, *previous->transform); 5959ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (layer->getColorFilter()) { 5969ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupColorFilter(layer->getColorFilter()); 597171c592f0b7066acf279863c8a52ddabea49d3dbRomain Guy } 5985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRegion(layer, rect); 5999ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (layer->getColorFilter()) { 600171c592f0b7066acf279863c8a52ddabea49d3dbRomain Guy resetColorFilter(); 601171c592f0b7066acf279863c8a52ddabea49d3dbRomain Guy } 6029ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } else if (!rect.isEmpty()) { 6039ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom); 6049ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy composeLayerRect(layer, rect, true); 605eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 6061d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 607eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 608eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Detach the texture from the FBO 609eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, current->fbo); 610eb99356a0548684a501766e6a524529ab93304c8Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 611eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 612eb99356a0548684a501766e6a524529ab93304c8Romain Guy 613eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Put the FBO name back in the cache, if it doesn't fit, it will be destroyed 614eb99356a0548684a501766e6a524529ab93304c8Romain Guy mCaches.fboCache.put(current->fbo); 615eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 616eb99356a0548684a501766e6a524529ab93304c8Romain Guy 617746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 618746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 619eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Failing to add the layer to the cache should happen only if the layer is too large 6208550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy if (!mCaches.layerCache.put(layer)) { 6211d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 6229ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->deleteTexture(); 6231d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 6241d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 6251d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 6261d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 627aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyvoid OpenGLRenderer::drawTextureLayer(Layer* layer, const Rect& rect) { 6289ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy float alpha = layer->getAlpha() / 255.0f; 629aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 630aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy setupDraw(); 6319ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (layer->getRenderTarget() == GL_TEXTURE_2D) { 6328f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy setupDrawWithTexture(); 6338f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } else { 6348f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy setupDrawWithExternalTexture(); 6358f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 6368f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy setupDrawTextureTransform(); 637aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy setupDrawColor(alpha, alpha, alpha, alpha); 638aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy setupDrawColorFilter(); 6399ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawBlending(layer->isBlend() || alpha < 1.0f, layer->getMode()); 640aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy setupDrawProgram(); 641aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy setupDrawPureColorUniforms(); 642aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy setupDrawColorFilterUniforms(); 6439ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (layer->getRenderTarget() == GL_TEXTURE_2D) { 6449ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawTexture(layer->getTexture()); 6458f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } else { 6469ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawExternalTexture(layer->getTexture()); 6478f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 648ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy if (mSnapshot->transform->isPureTranslate() && 649ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy layer->getWidth() == (uint32_t) rect.getWidth() && 650ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy layer->getHeight() == (uint32_t) rect.getHeight()) { 6519ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const float x = (int) floorf(rect.left + mSnapshot->transform->getTranslateX() + 0.5f); 6529ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const float y = (int) floorf(rect.top + mSnapshot->transform->getTranslateY() + 0.5f); 6539ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 6549ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_NEAREST, GL_NEAREST); 6559ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawModelView(x, y, x + rect.getWidth(), y + rect.getHeight(), true); 6569ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } else { 6579ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_LINEAR, GL_LINEAR); 6589ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawModelView(rect.left, rect.top, rect.right, rect.bottom); 6599ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } 6609ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawTextureTransformUniforms(layer->getTexTransform()); 661aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy setupDrawMesh(&mMeshVertices[0].position[0], &mMeshVertices[0].texture[0]); 662aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 663aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 664aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 665aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy finishDrawTexture(); 666aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy} 667aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 6685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRect(Layer* layer, const Rect& rect, bool swap) { 6699ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (!layer->isTextureLayer()) { 670aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy const Rect& texCoords = layer->texCoords; 671aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy resetDrawTextureTexCoords(texCoords.left, texCoords.top, 672aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy texCoords.right, texCoords.bottom); 6735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6749ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy float x = rect.left; 6759ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy float y = rect.top; 6769ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy bool simpleTransform = mSnapshot->transform->isPureTranslate(); 6779ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 678ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy if (simpleTransform && 679ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy layer->getWidth() == (uint32_t) rect.getWidth() && 680ec19b4a764d512091a780fc93ced567dfbf80914Romain Guy layer->getHeight() == (uint32_t) rect.getHeight()) { 6819ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy // When we're swapping, the layer is already in screen coordinates 6829ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (!swap) { 6839ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy x = (int) floorf(rect.left + mSnapshot->transform->getTranslateX() + 0.5f); 6849ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy y = (int) floorf(rect.top + mSnapshot->transform->getTranslateY() + 0.5f); 6859ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } 6869ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 6879ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_NEAREST, GL_NEAREST, true); 6889ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } else { 6899ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_LINEAR, GL_LINEAR, true); 6909ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } 6919ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 6929ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy drawTextureMesh(x, y, x + rect.getWidth(), y + rect.getHeight(), 6939ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->getTexture(), layer->getAlpha() / 255.0f, 6949ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->getMode(), layer->isBlend(), 6959ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 6969ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy GL_TRIANGLE_STRIP, gMeshCount, swap, swap || simpleTransform); 6975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 698aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 699aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } else { 700aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 701aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy drawTextureLayer(layer, rect); 702aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 703aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 7045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) { 7075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 7085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->region.isRect()) { 7099fc27819d75e24ad63d7b383d80f5cb66a577a0dRomain Guy layer->setRegionAsRect(); 7109fc27819d75e24ad63d7b383d80f5cb66a577a0dRomain Guy 71140667676e542a9daeafeac9904c30004e8706fd3Romain Guy composeLayerRect(layer, layer->regionRect); 7129fc27819d75e24ad63d7b383d80f5cb66a577a0dRomain Guy 7135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 7145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return; 7155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!layer->region.isEmpty()) { 7185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy size_t count; 7195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* rects = layer->region.getArray(&count); 7205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7219ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const float alpha = layer->getAlpha() / 255.0f; 7229ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const float texX = 1.0f / float(layer->getWidth()); 7239ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const float texY = 1.0f / float(layer->getHeight()); 724f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy const float height = rect.getHeight(); 7255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex* mesh = mCaches.getRegionMesh(); 7275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLsizei numQuads = 0; 7285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7297230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy setupDraw(); 7307230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy setupDrawWithTexture(); 7317230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy setupDrawColor(alpha, alpha, alpha, alpha); 732ada830f639591b99c3e40de22b07296c7932a33fRomain Guy setupDrawColorFilter(); 7339ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawBlending(layer->isBlend() || alpha < 1.0f, layer->getMode(), false); 7347230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy setupDrawProgram(); 7357230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy setupDrawDirtyRegionsDisabled(); 7367230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy setupDrawPureColorUniforms(); 737ada830f639591b99c3e40de22b07296c7932a33fRomain Guy setupDrawColorFilterUniforms(); 7389ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawTexture(layer->getTexture()); 7399ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (mSnapshot->transform->isPureTranslate()) { 7409ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const float x = (int) floorf(rect.left + mSnapshot->transform->getTranslateX() + 0.5f); 7419ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy const float y = (int) floorf(rect.top + mSnapshot->transform->getTranslateY() + 0.5f); 7429ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 7439ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_NEAREST, GL_NEAREST); 7449ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawModelViewTranslate(x, y, x + rect.getWidth(), y + rect.getHeight(), true); 7459ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } else { 7469ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_LINEAR, GL_LINEAR); 7479ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawModelViewTranslate(rect.left, rect.top, rect.right, rect.bottom); 7489ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } 7497230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy setupDrawMesh(&mesh[0].position[0], &mesh[0].texture[0]); 7505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 7525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* r = &rects[i]; 7535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u1 = r->left * texX; 755f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy const float v1 = (height - r->top) * texY; 7565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u2 = r->right * texX; 757f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy const float v2 = (height - r->bottom) * texY; 7585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Reject quads outside of the clip 7605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->top, u1, v1); 7615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->top, u2, v1); 7625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->bottom, u1, v2); 7635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->bottom, u2, v2); 7645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads++; 7665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads >= REGION_MESH_QUAD_COUNT) { 7685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 7695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads = 0; 7705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mesh = mCaches.getRegionMesh(); 7715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads > 0) { 7755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 7765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 7797230a74e9a36dfc6c4346c14e325bf07cd05b380Romain Guy finishDrawTexture(); 7805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 7823a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy drawRegionRects(layer->region); 7835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 7865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 7885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 7895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7923a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guyvoid OpenGLRenderer::drawRegionRects(const Region& region) { 7933a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 7943a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy size_t count; 7953a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy const android::Rect* rects = region.getArray(&count); 7963a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 7973a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy uint32_t colors[] = { 7983a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 0x7fff0000, 0x7f00ff00, 7993a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 0x7f0000ff, 0x7fff00ff, 8003a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy }; 8013a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 8023a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy int offset = 0; 8033a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy int32_t top = rects[0].top; 8043a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 8053a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy for (size_t i = 0; i < count; i++) { 8063a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy if (top != rects[i].top) { 8073a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy offset ^= 0x2; 8083a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy top = rects[i].top; 8093a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy } 8103a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 8113a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy Rect r(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom); 8123a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy drawColorRect(r.left, r.top, r.right, r.bottom, colors[offset + (i & 0x1)], 8133a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy SkXfermode::kSrcOver_Mode); 8143a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy } 8153a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy#endif 8163a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy} 8173a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 8185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 8195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom, const mat4 transform) { 8205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 821f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy if (hasLayer()) { 8225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 8235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy transform.mapRect(bounds); 824f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy dirtyLayerUnchecked(bounds, getRegion()); 8255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 8265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 8275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 8285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 8295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 8305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom) { 8315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 832f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy if (hasLayer()) { 8335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 834f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy dirtyLayerUnchecked(bounds, getRegion()); 8351bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy } 8361bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy#endif 8371bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy} 8381bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy 8391bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guyvoid OpenGLRenderer::dirtyLayerUnchecked(Rect& bounds, Region* region) { 8401bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy#if RENDER_LAYERS_AS_REGIONS 8411bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy if (bounds.intersect(*mSnapshot->clipRect)) { 8421bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy bounds.snapToPixelBoundaries(); 8431bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 8441bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy if (!dirty.isEmpty()) { 8451bd1bad0b4a75e633c5edbe802bf6fb4dd765161Romain Guy region->orSelf(dirty); 8465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 8475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 8485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 8495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 8505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 85154be1cdf3d63095512120fa7ced5c16e462abffaRomain Guyvoid OpenGLRenderer::clearLayerRegions() { 85254be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy const size_t count = mLayers.size(); 85354be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy if (count == 0) return; 85454be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 85554be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy if (!mSnapshot->isIgnored()) { 85654be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy // Doing several glScissor/glClear here can negatively impact 85754be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy // GPUs with a tiler architecture, instead we draw quads with 85854be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy // the Clear blending mode 85954be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 86054be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy // The list contains bounds that have already been clipped 86154be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy // against their initial clip rect, and the current clip 86254be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy // is likely different so we need to disable clipping here 86354be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy glDisable(GL_SCISSOR_TEST); 86454be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 86554be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex mesh[count * 6]; 86654be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex* vertex = mesh; 86754be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 86854be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy for (uint32_t i = 0; i < count; i++) { 86954be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Rect* bounds = mLayers.itemAt(i); 87054be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 87154be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex::set(vertex++, bounds->left, bounds->bottom); 87254be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex::set(vertex++, bounds->left, bounds->top); 87354be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex::set(vertex++, bounds->right, bounds->top); 87454be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex::set(vertex++, bounds->left, bounds->bottom); 87554be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex::set(vertex++, bounds->right, bounds->top); 87654be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy Vertex::set(vertex++, bounds->right, bounds->bottom); 87754be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 87854be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy delete bounds; 87954be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy } 88054be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 88154be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy setupDraw(false); 88254be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy setupDrawColor(0.0f, 0.0f, 0.0f, 1.0f); 88354be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy setupDrawBlending(true, SkXfermode::kClear_Mode); 88454be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy setupDrawProgram(); 88554be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy setupDrawPureColorUniforms(); 88654be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy setupDrawModelViewTranslate(0.0f, 0.0f, 0.0f, 0.0f, true); 88754be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 88854be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy mCaches.unbindMeshBuffer(); 88954be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 89054be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy gVertexStride, &mesh[0].position[0]); 89154be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy glDrawArrays(GL_TRIANGLES, 0, count * 6); 89254be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 89354be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy glEnable(GL_SCISSOR_TEST); 89454be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy } else { 89554be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy for (uint32_t i = 0; i < count; i++) { 89654be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy delete mLayers.itemAt(i); 89754be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy } 89854be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy } 89954be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 90054be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy mLayers.clear(); 90154be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy} 90254be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy 903bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 904f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 905f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 906f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 907f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 9088aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 909f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 910f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 911f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 9128aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 913f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 914f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 915f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 9168aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 917f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 918f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 919807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guyvoid OpenGLRenderer::skew(float sx, float sy) { 920807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy mSnapshot->transform->skew(sx, sy); 921807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy} 922807daf7df615b60ce6fc41355aabe3aa353cebabRomain Guy 923f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 9248aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 925f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 926f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 92741030da16856c8869e1e51d4a0405432fa96614eRomain Guyconst float* OpenGLRenderer::getMatrix() const { 92899bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy if (mSnapshot->fbo != 0) { 92999bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mSnapshot->transform->data[0]; 93099bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy } 93199bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mIdentity.data[0]; 93241030da16856c8869e1e51d4a0405432fa96614eRomain Guy} 93341030da16856c8869e1e51d4a0405432fa96614eRomain Guy 934f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 9358aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 936f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 937f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 938f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 939e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy SkMatrix transform; 940e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->copyTo(transform); 941e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy transform.preConcat(*matrix); 942e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->load(transform); 943f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 944f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 945f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 946f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 947f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 948f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 949bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 950e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy Rect clip(*mSnapshot->clipRect); 951e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy clip.snapToPixelBoundaries(); 952eb99356a0548684a501766e6a524529ab93304c8Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 953746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 9549d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 9559d5316e3f56d138504565ff311145ac01621dff4Romain Guy 9569d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 957079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 958bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 959bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 960c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 961af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy if (mSnapshot->isIgnored()) { 962dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy return true; 963dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 964dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 9651d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 9668aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 967d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy r.snapToPixelBoundaries(); 968d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 969d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy Rect clipRect(*mSnapshot->clipRect); 970d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy clipRect.snapToPixelBoundaries(); 971d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 972d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy return !clipRect.intersects(r); 973c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 974c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 975079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 976079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 9777ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 978746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 9797ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 9808aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 981e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 982e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 983f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 98470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy// Drawing commands 98570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy/////////////////////////////////////////////////////////////////////////////// 98670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 98754be1cdf3d63095512120fa7ced5c16e462abffaRomain Guyvoid OpenGLRenderer::setupDraw(bool clear) { 98854be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy if (clear) clearLayerRegions(); 98970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (mDirtyClip) { 99070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setScissorFromClip(); 99170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 99270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mDescription.reset(); 99370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mSetShaderColor = false; 99470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorSet = false; 99570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorA = mColorR = mColorG = mColorB = 0.0f; 99670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mTextureUnit = 0; 99770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mTrackDirtyRegions = true; 9988d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy mTexCoordsSlot = -1; 99970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 100070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 100170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawWithTexture(bool isAlpha8) { 100270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mDescription.hasTexture = true; 100370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mDescription.hasAlpha8Texture = isAlpha8; 100470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 100570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 1006aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyvoid OpenGLRenderer::setupDrawWithExternalTexture() { 1007aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mDescription.hasExternalTexture = true; 1008aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy} 1009aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 10105b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haasevoid OpenGLRenderer::setupDrawAALine() { 101199585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase mDescription.isAA = true; 10125b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase} 10135b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 1014ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guyvoid OpenGLRenderer::setupDrawPoint(float pointSize) { 1015ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy mDescription.isPoint = true; 1016ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy mDescription.pointSize = pointSize; 1017ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy} 1018ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 101970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawColor(int color) { 10208d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy setupDrawColor(color, (color >> 24) & 0xFF); 10218d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy} 10228d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy 10238d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guyvoid OpenGLRenderer::setupDrawColor(int color, int alpha) { 10248d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy mColorA = alpha / 255.0f; 10256cfdf4538049e4b96f50d8c0fe3119664420cc34Chet Haase // Second divide of a by 255 is an optimization, allowing us to simply multiply 10266cfdf4538049e4b96f50d8c0fe3119664420cc34Chet Haase // the rgb values by a instead of also dividing by 255 102770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy const float a = mColorA / 255.0f; 1028fa7952dbb86a8aff0c90418aa77dddee3802c23aRomain Guy mColorR = a * ((color >> 16) & 0xFF); 1029fa7952dbb86a8aff0c90418aa77dddee3802c23aRomain Guy mColorG = a * ((color >> 8) & 0xFF); 1030fa7952dbb86a8aff0c90418aa77dddee3802c23aRomain Guy mColorB = a * ((color ) & 0xFF); 103170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorSet = true; 103270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mSetShaderColor = mDescription.setColor(mColorR, mColorG, mColorB, mColorA); 103370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 103470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 103586568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guyvoid OpenGLRenderer::setupDrawAlpha8Color(int color, int alpha) { 103686568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorA = alpha / 255.0f; 10376cfdf4538049e4b96f50d8c0fe3119664420cc34Chet Haase // Double-divide of a by 255 is an optimization, allowing us to simply multiply 10386cfdf4538049e4b96f50d8c0fe3119664420cc34Chet Haase // the rgb values by a instead of also dividing by 255 103986568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy const float a = mColorA / 255.0f; 104086568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorR = a * ((color >> 16) & 0xFF); 104186568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorG = a * ((color >> 8) & 0xFF); 104286568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorB = a * ((color ) & 0xFF); 104386568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorSet = true; 104486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mSetShaderColor = mDescription.setAlpha8Color(mColorR, mColorG, mColorB, mColorA); 104586568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy} 104686568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy 104770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawColor(float r, float g, float b, float a) { 104870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorA = a; 104970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorR = r; 105070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorG = g; 105170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorB = b; 105270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorSet = true; 105370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mSetShaderColor = mDescription.setColor(r, g, b, a); 105470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 105570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 105686568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guyvoid OpenGLRenderer::setupDrawAlpha8Color(float r, float g, float b, float a) { 105786568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorA = a; 105886568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorR = r; 105986568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorG = g; 106086568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorB = b; 106186568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mColorSet = true; 106286568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mSetShaderColor = mDescription.setAlpha8Color(r, g, b, a); 106386568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy} 106486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy 106570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawShader() { 106670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (mShader) { 106770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mShader->describe(mDescription, mCaches.extensions); 106870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 106970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 107070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 107170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawColorFilter() { 107270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (mColorFilter) { 107370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorFilter->describe(mDescription, mCaches.extensions); 107470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 107570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 107670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 1077f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guyvoid OpenGLRenderer::accountForClear(SkXfermode::Mode mode) { 1078f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy if (mColorSet && mode == SkXfermode::kClear_Mode) { 1079f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy mColorA = 1.0f; 1080f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy mColorR = mColorG = mColorB = 0.0f; 108154be1cdf3d63095512120fa7ced5c16e462abffaRomain Guy mSetShaderColor = mDescription.modulate = true; 1082f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy } 1083f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy} 1084f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy 108570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawBlending(SkXfermode::Mode mode, bool swapSrcDst) { 1086f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy // When the blending mode is kClear_Mode, we need to use a modulate color 1087f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy // argb=1,0,0,0 1088f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy accountForClear(mode); 108970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy chooseBlending((mColorSet && mColorA < 1.0f) || (mShader && mShader->blend()), mode, 109070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mDescription, swapSrcDst); 109170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 109270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 109370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawBlending(bool blend, SkXfermode::Mode mode, bool swapSrcDst) { 1094f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy // When the blending mode is kClear_Mode, we need to use a modulate color 1095f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy // argb=1,0,0,0 1096f09ef51889f75289b041f9e9f949b7b82ed5b686Romain Guy accountForClear(mode); 109770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy chooseBlending(blend || (mColorSet && mColorA < 1.0f) || (mShader && mShader->blend()), mode, 109870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mDescription, swapSrcDst); 109970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 110070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 110170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawProgram() { 110270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy useProgram(mCaches.programCache.get(mDescription)); 110370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 110470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 110570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawDirtyRegionsDisabled() { 110670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mTrackDirtyRegions = false; 110770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 110870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 110970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawModelViewTranslate(float left, float top, float right, float bottom, 111070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy bool ignoreTransform) { 111170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mModelView.loadTranslate(left, top, 0.0f); 111270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (!ignoreTransform) { 111370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 111470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (mTrackDirtyRegions) dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 111570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } else { 111670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, mIdentity); 111770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (mTrackDirtyRegions) dirtyLayer(left, top, right, bottom); 111870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 111970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 112070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 11218a5cc92a150bae38ec43732d941b38bb381fe153Chet Haasevoid OpenGLRenderer::setupDrawModelViewIdentity(bool offset) { 11228a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase mCaches.currentProgram->set(mOrthoMatrix, mIdentity, *mSnapshot->transform, offset); 11238d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy} 11248d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy 112570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawModelView(float left, float top, float right, float bottom, 112670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy bool ignoreTransform, bool ignoreModelView) { 112770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (!ignoreModelView) { 112870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mModelView.loadTranslate(left, top, 0.0f); 112970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 113070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } else { 113170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mModelView.loadIdentity(); 113270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 113386568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy bool dirty = right - left > 0.0f && bottom - top > 0.0f; 113486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy if (!ignoreTransform) { 113586568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 113686568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy if (mTrackDirtyRegions && dirty) { 113786568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 113886568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy } 113986568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy } else { 114086568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, mIdentity); 114186568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy if (mTrackDirtyRegions && dirty) dirtyLayer(left, top, right, bottom); 114286568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy } 114370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 114470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 1145ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guyvoid OpenGLRenderer::setupDrawPointUniforms() { 1146ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy int slot = mCaches.currentProgram->getUniform("pointSize"); 1147ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy glUniform1f(slot, mDescription.pointSize); 1148ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy} 1149ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 115070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawColorUniforms() { 11515536841e5452172e7772d84ad5f4a2fc7059c9ddRomain Guy if (mColorSet || (mShader && mSetShaderColor)) { 115270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mCaches.currentProgram->setColor(mColorR, mColorG, mColorB, mColorA); 115370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 115470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 115570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 115686568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guyvoid OpenGLRenderer::setupDrawPureColorUniforms() { 11575536841e5452172e7772d84ad5f4a2fc7059c9ddRomain Guy if (mSetShaderColor) { 115886568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy mCaches.currentProgram->setColor(mColorR, mColorG, mColorB, mColorA); 11595536841e5452172e7772d84ad5f4a2fc7059c9ddRomain Guy } 11605536841e5452172e7772d84ad5f4a2fc7059c9ddRomain Guy} 11615536841e5452172e7772d84ad5f4a2fc7059c9ddRomain Guy 116270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawShaderUniforms(bool ignoreTransform) { 116370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (mShader) { 116470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (ignoreTransform) { 116570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mModelView.loadInverse(*mSnapshot->transform); 116670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 116770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &mTextureUnit); 116870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 116970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 117070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 11718d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guyvoid OpenGLRenderer::setupDrawShaderIdentityUniforms() { 11728d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy if (mShader) { 11738d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy mShader->setupProgram(mCaches.currentProgram, mIdentity, *mSnapshot, &mTextureUnit); 11748d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy } 11758d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy} 11768d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy 117770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawColorFilterUniforms() { 117870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (mColorFilter) { 117970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 118070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 118170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 118270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 118370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawSimpleMesh() { 118470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mCaches.bindMeshBuffer(); 118570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 118670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy gMeshStride, 0); 118770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 118870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 118970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawTexture(GLuint texture) { 119070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy bindTexture(texture); 119170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), mTextureUnit++); 119270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 119370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mTexCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 119470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy glEnableVertexAttribArray(mTexCoordsSlot); 119570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 119670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 1197aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyvoid OpenGLRenderer::setupDrawExternalTexture(GLuint texture) { 1198aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy bindExternalTexture(texture); 1199aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), mTextureUnit++); 1200aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 1201aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mTexCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 1202aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy glEnableVertexAttribArray(mTexCoordsSlot); 1203aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy} 1204aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 12058f0095cd33558e9cc8a440047908e53b68906f5fRomain Guyvoid OpenGLRenderer::setupDrawTextureTransform() { 12068f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mDescription.hasTextureTransform = true; 12078f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy} 12088f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 12098f0095cd33558e9cc8a440047908e53b68906f5fRomain Guyvoid OpenGLRenderer::setupDrawTextureTransformUniforms(mat4& transform) { 1210aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy glUniformMatrix4fv(mCaches.currentProgram->getUniform("mainTextureTransform"), 1, 1211aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy GL_FALSE, &transform.data[0]); 1212aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy} 1213aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 121470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::setupDrawMesh(GLvoid* vertices, GLvoid* texCoords, GLuint vbo) { 121570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (!vertices) { 121670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 121770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } else { 121870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy mCaches.unbindMeshBuffer(); 121970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy } 122070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 122170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy gMeshStride, vertices); 1222cf28957c89127ccfc82d535903c776124665446aDavid Li if (mTexCoordsSlot >= 0) { 12238d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy glVertexAttribPointer(mTexCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 12248d0d4783a0206c5884bf0b958d181f450ba5207dRomain Guy } 122570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 122670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 12275b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haasevoid OpenGLRenderer::setupDrawVertices(GLvoid* vertices) { 12285b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase mCaches.unbindMeshBuffer(); 12295b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 12305b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase gVertexStride, vertices); 12315b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase} 12325b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 12335b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase/** 12345b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase * Sets up the shader to draw an AA line. We draw AA lines with quads, where there is an 123599585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * outer boundary that fades out to 0. The variables set in the shader define the proportion of 123699585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * the width and length of the primitive occupied by the AA region. The vtxWidth and vtxLength 123799585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * attributes (one per vertex) are values from zero to one that tells the fragment 123899585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * shader where the fragment is in relation to the line width/length overall; these values are 123999585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * then used to compute the proper color, based on whether the fragment lies in the fading AA 124099585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * region of the line. 124199585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * Note that we only pass down the width values in this setup function. The length coordinates 124299585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase * are set up for each individual segment. 12435b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase */ 124499585adeb4167ca357a72eb866f34c1af944f4b9Chet Haasevoid OpenGLRenderer::setupDrawAALine(GLvoid* vertices, GLvoid* widthCoords, 124599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase GLvoid* lengthCoords, float boundaryWidthProportion) { 12465b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase mCaches.unbindMeshBuffer(); 12475b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 124899585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase gAAVertexStride, vertices); 124999585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase int widthSlot = mCaches.currentProgram->getAttrib("vtxWidth"); 125099585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase glEnableVertexAttribArray(widthSlot); 125199585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase glVertexAttribPointer(widthSlot, 1, GL_FLOAT, GL_FALSE, gAAVertexStride, widthCoords); 125299585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase int lengthSlot = mCaches.currentProgram->getAttrib("vtxLength"); 125399585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase glEnableVertexAttribArray(lengthSlot); 125499585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase glVertexAttribPointer(lengthSlot, 1, GL_FLOAT, GL_FALSE, gAAVertexStride, lengthCoords); 12555b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase int boundaryWidthSlot = mCaches.currentProgram->getUniform("boundaryWidth"); 125699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase glUniform1f(boundaryWidthSlot, boundaryWidthProportion); 125799585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase // Setting the inverse value saves computations per-fragment in the shader 12585b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase int inverseBoundaryWidthSlot = mCaches.currentProgram->getUniform("inverseBoundaryWidth"); 125999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase glUniform1f(inverseBoundaryWidthSlot, (1 / boundaryWidthProportion)); 12605b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase} 12615b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 126270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guyvoid OpenGLRenderer::finishDrawTexture() { 126370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy glDisableVertexAttribArray(mTexCoordsSlot); 126470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy} 126570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 126670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy/////////////////////////////////////////////////////////////////////////////// 1267f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 1268f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 1269f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 12707b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guybool OpenGLRenderer::drawDisplayList(DisplayList* displayList, uint32_t width, uint32_t height, 12717b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy Rect& dirty, uint32_t level) { 12727b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy if (quickReject(0.0f, 0.0f, width, height)) { 12737b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy return false; 12747b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy } 12757b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy 12760fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // All the usual checks and setup operations (quickReject, setupDraw, etc.) 12770fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // will be performed by the display list itself 12780fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy if (displayList) { 1279cabfcc1364eb7e4de0b15b3574fba45027b45cfcRomain Guy return displayList->replay(*this, dirty, level); 12800fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy } 12817b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy 1282daf98e941e140e8739458126640183b9f296a2abChet Haase return false; 12830fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy} 12840fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy 1285ed30fd8e9a2d65ee5c8520de55b0089c219f390cChet Haasevoid OpenGLRenderer::outputDisplayList(DisplayList* displayList, uint32_t level) { 1286ed30fd8e9a2d65ee5c8520de55b0089c219f390cChet Haase if (displayList) { 1287ed30fd8e9a2d65ee5c8520de55b0089c219f390cChet Haase displayList->output(*this, level); 1288ed30fd8e9a2d65ee5c8520de55b0089c219f390cChet Haase } 1289ed30fd8e9a2d65ee5c8520de55b0089c219f390cChet Haase} 1290ed30fd8e9a2d65ee5c8520de55b0089c219f390cChet Haase 1291a168d7372132d6c87835878794b6ed43d0d282fdRomain Guyvoid OpenGLRenderer::drawAlphaBitmap(Texture* texture, float left, float top, SkPaint* paint) { 1292a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy int alpha; 1293a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy SkXfermode::Mode mode; 1294a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy getAlphaAndMode(paint, &alpha, &mode); 1295a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy 1296a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 1297a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy 1298a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy float x = left; 1299a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy float y = top; 1300a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy 1301a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy bool ignoreTransform = false; 1302a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy if (mSnapshot->transform->isPureTranslate()) { 1303a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy x = (int) floorf(left + mSnapshot->transform->getTranslateX() + 0.5f); 1304a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy y = (int) floorf(top + mSnapshot->transform->getTranslateY() + 0.5f); 1305a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy ignoreTransform = true; 1306a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy } 1307a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy 1308a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDraw(); 1309a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawWithTexture(true); 13105b7a3150a6dbf193b371854b66fa654937633d3aRomain Guy if (paint) { 13115b7a3150a6dbf193b371854b66fa654937633d3aRomain Guy setupDrawAlpha8Color(paint->getColor(), alpha); 13125b7a3150a6dbf193b371854b66fa654937633d3aRomain Guy } 1313a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawColorFilter(); 1314a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawShader(); 1315a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawBlending(true, mode); 1316a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawProgram(); 1317a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawModelView(x, y, x + texture->width, y + texture->height, ignoreTransform); 1318a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawTexture(texture->id); 1319a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawPureColorUniforms(); 1320a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawColorFilterUniforms(); 1321a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawShaderUniforms(); 1322a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy setupDrawMesh(NULL, (GLvoid*) gMeshTextureOffset); 1323a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy 1324a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1325a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy 1326a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy finishDrawTexture(); 1327a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy} 1328a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy 13295c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, SkPaint* paint) { 13306926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 13316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 13326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 13336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 13346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 13356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 13366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 133786568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy glActiveTexture(gTextureUnits[0]); 13388164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 13399cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 134022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 134122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 1342a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy if (bitmap->getConfig() == SkBitmap::kA8_Config) { 1343a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy drawAlphaBitmap(texture, left, top, paint); 1344a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy } else { 1345a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy drawTextureRect(left, top, right, bottom, texture, paint); 1346a168d7372132d6c87835878794b6ed43d0d282fdRomain Guy } 13478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 13488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 13495c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) { 1350f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 1351f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 1352f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 1353f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 13546926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 13556926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 13566926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 13576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 135886568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy glActiveTexture(gTextureUnits[0]); 13598164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 13609cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 136122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 136222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 13635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // This could be done in a cheaper way, all we need is pass the matrix 13645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // to the vertex shader. The save/restore is a bit overkill. 13655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy save(SkCanvas::kMatrix_SaveFlag); 13665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy concatMatrix(matrix); 13675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureRect(0.0f, 0.0f, bitmap->width(), bitmap->height(), texture, paint); 13685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy restore(); 1369f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 1370f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 13715a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guyvoid OpenGLRenderer::drawBitmapMesh(SkBitmap* bitmap, int meshWidth, int meshHeight, 13725a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy float* vertices, int* colors, SkPaint* paint) { 13735a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy // TODO: Do a quickReject 13745a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy if (!vertices || mSnapshot->isIgnored()) { 13755a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy return; 13765a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy } 13775a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 13785a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy glActiveTexture(gTextureUnits[0]); 13795a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy Texture* texture = mCaches.textureCache.get(bitmap); 13805a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy if (!texture) return; 13815a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy const AutoTexture autoCleanup(texture); 13825a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 13835a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 13845a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int alpha; 13855a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy SkXfermode::Mode mode; 13865a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 13875a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 13885a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy const uint32_t count = meshWidth * meshHeight * 6; 13895a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 1390b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy float left = FLT_MAX; 1391b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy float top = FLT_MAX; 1392b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy float right = FLT_MIN; 1393b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy float bottom = FLT_MIN; 1394b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy 1395b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy#if RENDER_LAYERS_AS_REGIONS 1396b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy bool hasActiveLayer = hasLayer(); 1397b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy#else 1398b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy bool hasActiveLayer = false; 1399b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy#endif 1400b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy 1401a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy // TODO: Support the colors array 1402a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy TextureVertex mesh[count]; 14035a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy TextureVertex* vertex = mesh; 14045a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy for (int32_t y = 0; y < meshHeight; y++) { 14055a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy for (int32_t x = 0; x < meshWidth; x++) { 14065a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy uint32_t i = (y * (meshWidth + 1) + x) * 2; 14075a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 14085a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy float u1 = float(x) / meshWidth; 14095a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy float u2 = float(x + 1) / meshWidth; 14105a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy float v1 = float(y) / meshHeight; 14115a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy float v2 = float(y + 1) / meshHeight; 14125a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 14135a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int ax = i + (meshWidth + 1) * 2; 14145a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int ay = ax + 1; 14155a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int bx = i; 14165a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int by = bx + 1; 14175a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int cx = i + 2; 14185a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int cy = cx + 1; 14195a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int dx = i + (meshWidth + 1) * 2 + 2; 14205a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy int dy = dx + 1; 14215a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 14225a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy TextureVertex::set(vertex++, vertices[ax], vertices[ay], u1, v2); 14235a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy TextureVertex::set(vertex++, vertices[bx], vertices[by], u1, v1); 14245a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy TextureVertex::set(vertex++, vertices[cx], vertices[cy], u2, v1); 14255a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 14265a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy TextureVertex::set(vertex++, vertices[ax], vertices[ay], u1, v2); 14275a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy TextureVertex::set(vertex++, vertices[cx], vertices[cy], u2, v1); 14285a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy TextureVertex::set(vertex++, vertices[dx], vertices[dy], u2, v2); 1429b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy 1430b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy#if RENDER_LAYERS_AS_REGIONS 1431b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy if (hasActiveLayer) { 1432b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy // TODO: This could be optimized to avoid unnecessary ops 1433b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy left = fminf(left, fminf(vertices[ax], fminf(vertices[bx], vertices[cx]))); 1434b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy top = fminf(top, fminf(vertices[ay], fminf(vertices[by], vertices[cy]))); 1435b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy right = fmaxf(right, fmaxf(vertices[ax], fmaxf(vertices[bx], vertices[cx]))); 1436b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy bottom = fmaxf(bottom, fmaxf(vertices[ay], fmaxf(vertices[by], vertices[cy]))); 1437b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy } 1438b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy#endif 14395a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy } 14405a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy } 14415a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 1442b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy#if RENDER_LAYERS_AS_REGIONS 1443b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy if (hasActiveLayer) { 1444b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1445b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy } 1446b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy#endif 1447b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy 14485a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy drawTextureMesh(0.0f, 0.0f, 1.0f, 1.0f, texture->id, alpha / 255.0f, 14495a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy mode, texture->blend, &mesh[0].position[0], &mesh[0].texture[0], 1450b18d2d0079b4dbf5675ab79b7111b3dfb3cc1ad0Romain Guy GL_TRIANGLES, count, false, false, 0, false, false); 14515a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy} 14525a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 14538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 14548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 14558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 14565c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* paint) { 14576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 14586926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 14596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 14606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 1461746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 14628164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 14639cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 146422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 14658164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 14668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 14678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 14688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 1469c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 14701e59f9d10d164f156221f6d34b932f06cdd29f1fRomain Guy const float u1 = (srcLeft + 0.5f) / width; 14711e59f9d10d164f156221f6d34b932f06cdd29f1fRomain Guy const float v1 = (srcTop + 0.5f) / height; 14721e59f9d10d164f156221f6d34b932f06cdd29f1fRomain Guy const float u2 = (srcRight - 0.5f) / width; 14731e59f9d10d164f156221f6d34b932f06cdd29f1fRomain Guy const float v2 = (srcBottom - 0.5f) / height; 1474c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 147503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 14768ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 14778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 147803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy int alpha; 147903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy SkXfermode::Mode mode; 148003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy getAlphaAndMode(paint, &alpha, &mode); 148103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 14826620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (mSnapshot->transform->isPureTranslate()) { 14836620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(dstLeft + mSnapshot->transform->getTranslateX() + 0.5f); 14846620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(dstTop + mSnapshot->transform->getTranslateY() + 0.5f); 14856620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 14866620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + (dstRight - dstLeft), y + (dstBottom - dstTop), 14876620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy texture->id, alpha / 255.0f, mode, texture->blend, 14886620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 14896620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount, false, true); 14906620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 14916620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(dstLeft, dstTop, dstRight, dstBottom, texture->id, alpha / 255.0f, 14926620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 14936620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 14946620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 14958ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 14968ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 1497ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 1498ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 14994aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int32_t* yDivs, 15004bb942083a0d4db746adf95349108dd8ef842e32Romain Guy const uint32_t* colors, uint32_t width, uint32_t height, int8_t numColors, 15015c13d89c1332fcc499379b9064b891187b75ca32Chet Haase float left, float top, float right, float bottom, SkPaint* paint) { 15026926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 15036926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 15046926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 15056926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 1506746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 15078164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 15089cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 150922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 15108164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 1511f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 1512f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 1513f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 1514f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 1515f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 15162728f961614a385df1f056fc24803a9f65c90fabRomain Guy const Patch* mesh = mCaches.patchCache.get(bitmap->width(), bitmap->height(), 15174bb942083a0d4db746adf95349108dd8ef842e32Romain Guy right - left, bottom - top, xDivs, yDivs, colors, width, height, numColors); 1518f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 1519a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy if (mesh && mesh->verticesCount > 0) { 15206620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const bool pureTranslate = mSnapshot->transform->isPureTranslate(); 1521a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#if RENDER_LAYERS_AS_REGIONS 15225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mark the current layer dirty where we are going to draw the patch 15238168396d1acbcb5fdd29eeda4c30b2803d5283aeRomain Guy if (hasLayer() && mesh->hasEmptyQuads) { 1524c78b5d50f961ac8f696f8282979ae283cacd3574Romain Guy const float offsetX = left + mSnapshot->transform->getTranslateX(); 1525c78b5d50f961ac8f696f8282979ae283cacd3574Romain Guy const float offsetY = top + mSnapshot->transform->getTranslateY(); 15265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const size_t count = mesh->quads.size(); 15275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 15288ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy const Rect& bounds = mesh->quads.itemAt(i); 15296620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 1530c78b5d50f961ac8f696f8282979ae283cacd3574Romain Guy const float x = (int) floorf(bounds.left + offsetX + 0.5f); 1531c78b5d50f961ac8f696f8282979ae283cacd3574Romain Guy const float y = (int) floorf(bounds.top + offsetY + 0.5f); 1532c78b5d50f961ac8f696f8282979ae283cacd3574Romain Guy dirtyLayer(x, y, x + bounds.getWidth(), y + bounds.getHeight()); 15336620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 1534c78b5d50f961ac8f696f8282979ae283cacd3574Romain Guy dirtyLayer(left + bounds.left, top + bounds.top, 1535c78b5d50f961ac8f696f8282979ae283cacd3574Romain Guy left + bounds.right, top + bounds.bottom, *mSnapshot->transform); 15366620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 15375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 15385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1539a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#endif 15405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 15416620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 15426620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(left + mSnapshot->transform->getTranslateX() + 0.5f); 15436620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(top + mSnapshot->transform->getTranslateY() + 0.5f); 15446620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 15456620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + right - left, y + bottom - top, texture->id, alpha / 255.0f, 15466620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 15476620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLES, mesh->verticesCount, false, true, mesh->meshBuffer, 15486620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy true, !mesh->hasEmptyQuads); 15496620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 15506620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, 15516620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 15526620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLES, mesh->verticesCount, false, false, mesh->meshBuffer, 15536620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy true, !mesh->hasEmptyQuads); 15546620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 1555054dc1840941665e32036f9523df51720ad069c8Romain Guy } 1556f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 1557f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 155899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase/** 1559858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase * This function uses a similar approach to that of AA lines in the drawLines() function. 1560858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase * We expand the rectangle by a half pixel in screen space on all sides, and use a fragment 1561858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase * shader to compute the translucency of the color, determined by whether a given pixel is 1562858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase * within that boundary region and how far into the region it is. 1563858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase */ 1564858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haasevoid OpenGLRenderer::drawAARect(float left, float top, float right, float bottom, 1565181d0a6ccedee03789919d53c46540a8df751896Romain Guy int color, SkXfermode::Mode mode) { 1566858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float inverseScaleX = 1.0f; 1567858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float inverseScaleY = 1.0f; 1568858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase // The quad that we use needs to account for scaling. 1569858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase if (!mSnapshot->transform->isPureTranslate()) { 1570858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase Matrix4 *mat = mSnapshot->transform; 1571858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float m00 = mat->data[Matrix4::kScaleX]; 1572858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float m01 = mat->data[Matrix4::kSkewY]; 1573858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float m02 = mat->data[2]; 1574858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float m10 = mat->data[Matrix4::kSkewX]; 1575858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float m11 = mat->data[Matrix4::kScaleX]; 1576858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float m12 = mat->data[6]; 1577858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float scaleX = sqrt(m00 * m00 + m01 * m01); 1578858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float scaleY = sqrt(m10 * m10 + m11 * m11); 1579858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase inverseScaleX = (scaleX != 0) ? (inverseScaleX / scaleX) : 0; 1580858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase inverseScaleY = (scaleY != 0) ? (inverseScaleY / scaleY) : 0; 1581858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase } 1582858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1583858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDraw(); 1584858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawAALine(); 1585858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawColor(color); 1586858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawColorFilter(); 1587858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawShader(); 1588858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawBlending(true, mode); 1589858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawProgram(); 1590858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawModelViewIdentity(true); 1591858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawColorUniforms(); 1592858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawColorFilterUniforms(); 1593858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawShaderIdentityUniforms(); 1594858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1595858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase AAVertex rects[4]; 1596858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase AAVertex* aaVertices = &rects[0]; 1597858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase void* widthCoords = ((GLbyte*) aaVertices) + gVertexAAWidthOffset; 1598858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase void* lengthCoords = ((GLbyte*) aaVertices) + gVertexAALengthOffset; 1599858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1600858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float boundarySizeX = .5 * inverseScaleX; 1601858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float boundarySizeY = .5 * inverseScaleY; 1602858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1603858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase // Adjust the rect by the AA boundary padding 1604858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase left -= boundarySizeX; 1605858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase right += boundarySizeX; 1606858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase top -= boundarySizeY; 1607858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase bottom += boundarySizeY; 1608858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1609858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float width = right - left; 1610858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float height = bottom - top; 1611858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1612858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float boundaryWidthProportion = (width != 0) ? (2 * boundarySizeX) / width : 0; 1613858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase float boundaryHeightProportion = (height != 0) ? (2 * boundarySizeY) / height : 0; 1614858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase setupDrawAALine((void*) aaVertices, widthCoords, lengthCoords, boundaryWidthProportion); 1615858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase int boundaryLengthSlot = mCaches.currentProgram->getUniform("boundaryLength"); 1616858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase int inverseBoundaryLengthSlot = mCaches.currentProgram->getUniform("inverseBoundaryLength"); 1617858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase glUniform1f(boundaryLengthSlot, boundaryHeightProportion); 1618858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase glUniform1f(inverseBoundaryLengthSlot, (1 / boundaryHeightProportion)); 1619858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1620858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase if (!quickReject(left, top, right, bottom)) { 1621858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase AAVertex::set(aaVertices++, left, bottom, 1, 1); 1622858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase AAVertex::set(aaVertices++, left, top, 1, 0); 1623858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase AAVertex::set(aaVertices++, right, bottom, 0, 1); 1624858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase AAVertex::set(aaVertices++, right, top, 0, 0); 1625858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1626858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); 1627858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase } 1628858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase} 1629858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase 1630858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase/** 163199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * We draw lines as quads (tristrips). Using GL_LINES can be difficult because the rasterization 163299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * rules for those lines produces some unexpected results, and may vary between hardware devices. 163399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * The basics of lines-as-quads is easy; we simply find the normal to the line and position the 163499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * corners of the quads on either side of each line endpoint, separated by the strokeWidth 163599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * of the line. Hairlines are more involved because we need to account for transform scaling 163699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * to end up with a one-pixel-wide line in screen space.. 163799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * Anti-aliased lines add another factor to the approach. We use a specialized fragment shader 163899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * in combination with values that we calculate and pass down in this method. The basic approach 163999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * is that the quad we create contains both the core line area plus a bounding area in which 164099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * the translucent/AA pixels are drawn. The values we calculate tell the shader what 164199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * proportion of the width and the length of a given segment is represented by the boundary 164299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * region. The quad ends up being exactly .5 pixel larger in all directions than the non-AA quad. 164399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * The bounding region is actually 1 pixel wide on all sides (half pixel on the outside, half pixel 164499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * on the inside). This ends up giving the result we want, with pixels that are completely 164599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * 'inside' the line area being filled opaquely and the other pixels being filled according to 164699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase * how far into the boundary region they are, which is determined by shader interpolation. 164799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase */ 16488a5cc92a150bae38ec43732d941b38bb381fe153Chet Haasevoid OpenGLRenderer::drawLines(float* points, int count, SkPaint* paint) { 16498a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (mSnapshot->isIgnored()) return; 16508a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase 16518a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase const bool isAA = paint->isAntiAlias(); 165299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // We use half the stroke width here because we're going to position the quad 165399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // corner vertices half of the width away from the line endpoints 165499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float halfStrokeWidth = paint->getStrokeWidth() * 0.5f; 16558a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase // A stroke width of 0 has a special meaning in Skia: 16568a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase // it draws a line 1 px wide regardless of current transform 16578a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase bool isHairLine = paint->getStrokeWidth() == 0.0f; 165899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float inverseScaleX = 1.0f; 165999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float inverseScaleY = 1.0f; 166099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase bool scaled = false; 16618a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase int alpha; 16628a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase SkXfermode::Mode mode; 16638a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase int generatedVerticesCount = 0; 16645b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase int verticesCount = count; 16655b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase if (count > 4) { 1666c54ed966f78b9ee8117931859d62faa6f11fe018Chet Haase // Polyline: account for extra vertices needed for continuous tri-strip 166799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase verticesCount += (count - 4); 166899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } 166999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase 167099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase if (isHairLine || isAA) { 167199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // The quad that we use for AA and hairlines needs to account for scaling. For hairlines 167299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // the line on the screen should always be one pixel wide regardless of scale. For 167399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // AA lines, we only want one pixel of translucent boundary around the quad. 167499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase if (!mSnapshot->transform->isPureTranslate()) { 167599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase Matrix4 *mat = mSnapshot->transform; 167699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float m00 = mat->data[Matrix4::kScaleX]; 167799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float m01 = mat->data[Matrix4::kSkewY]; 167899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float m02 = mat->data[2]; 167999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float m10 = mat->data[Matrix4::kSkewX]; 168099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float m11 = mat->data[Matrix4::kScaleX]; 168199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float m12 = mat->data[6]; 168299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float scaleX = sqrt(m00*m00 + m01*m01); 168399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float scaleY = sqrt(m10*m10 + m11*m11); 168499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase inverseScaleX = (scaleX != 0) ? (inverseScaleX / scaleX) : 0; 168599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase inverseScaleY = (scaleY != 0) ? (inverseScaleY / scaleY) : 0; 168699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase if (inverseScaleX != 1.0f || inverseScaleY != 1.0f) { 168799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase scaled = true; 168899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } 168999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } 16905b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 16918a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase 16928a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase getAlphaAndMode(paint, &alpha, &mode); 16938a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDraw(); 16948a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (isAA) { 16958a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawAALine(); 16968a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase } 16978a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawColor(paint->getColor(), alpha); 16988a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawColorFilter(); 16998a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawShader(); 17008a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (isAA) { 17018a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawBlending(true, mode); 17028a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase } else { 17038a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawBlending(mode); 17048a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase } 17058a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawProgram(); 17068a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawModelViewIdentity(true); 17078a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawColorUniforms(); 17088a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawColorFilterUniforms(); 17098a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawShaderIdentityUniforms(); 17108a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase 17118a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (isHairLine) { 17128a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase // Set a real stroke width to be used in quad construction 171399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase halfStrokeWidth = isAA? 1 : .5; 171499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } else if (isAA && !scaled) { 17155b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // Expand boundary to enable AA calculations on the quad border 171699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase halfStrokeWidth += .5f; 17175b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 17185b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex lines[verticesCount]; 17195b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex* vertices = &lines[0]; 172099585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex wLines[verticesCount]; 172199585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex* aaVertices = &wLines[0]; 17225b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase if (!isAA) { 17235b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase setupDrawVertices(vertices); 17245b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } else { 172599585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase void* widthCoords = ((GLbyte*) aaVertices) + gVertexAAWidthOffset; 172699585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase void* lengthCoords = ((GLbyte*) aaVertices) + gVertexAALengthOffset; 172799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // innerProportion is the ratio of the inner (non-AA) part of the line to the total 17285b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // AA stroke width (the base stroke width expanded by a half pixel on either side). 17295b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // This value is used in the fragment shader to determine how to fill fragments. 173099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // We will need to calculate the actual width proportion on each segment for 173199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // scaled non-hairlines, since the boundary proportion may differ per-axis when scaled. 173299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float boundaryWidthProportion = 1 / (2 * halfStrokeWidth); 173399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase setupDrawAALine((void*) aaVertices, widthCoords, lengthCoords, boundaryWidthProportion); 17345b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 17355b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 173699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase AAVertex* prevAAVertex = NULL; 173799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase Vertex* prevVertex = NULL; 1738740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy 173999585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase int boundaryLengthSlot = -1; 174099585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase int inverseBoundaryLengthSlot = -1; 174199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase int boundaryWidthSlot = -1; 174299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase int inverseBoundaryWidthSlot = -1; 17435b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase for (int i = 0; i < count; i += 4) { 17445b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // a = start point, b = end point 17455b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase vec2 a(points[i], points[i + 1]); 17465b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase vec2 b(points[i + 2], points[i + 3]); 174799585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase float length = 0; 174899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float boundaryLengthProportion = 0; 174999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float boundaryWidthProportion = 0; 17505b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 17515b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // Find the normal to the line 175299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase vec2 n = (b - a).copyNormalized() * halfStrokeWidth; 17538a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (isHairLine) { 17548a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (isAA) { 17558a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase float wideningFactor; 17568a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (fabs(n.x) >= fabs(n.y)) { 17578a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase wideningFactor = fabs(1.0f / n.x); 17588a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase } else { 17598a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase wideningFactor = fabs(1.0f / n.y); 17608a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase } 17618a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase n *= wideningFactor; 17625b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 176399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase if (scaled) { 176499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase n.x *= inverseScaleX; 176599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase n.y *= inverseScaleY; 176699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } 176799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } else if (scaled) { 176899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // Extend n by .5 pixel on each side, post-transform 176999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase vec2 extendedN = n.copyNormalized(); 177099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase extendedN /= 2; 177199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase extendedN.x *= inverseScaleX; 177299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase extendedN.y *= inverseScaleY; 177399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float extendedNLength = extendedN.length(); 177499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // We need to set this value on the shader prior to drawing 177599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase boundaryWidthProportion = extendedNLength / (halfStrokeWidth + extendedNLength); 177699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase n += extendedN; 17775b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 17785b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase float x = n.x; 17795b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase n.x = -n.y; 17805b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase n.y = x; 17815b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 178299585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase // aa lines expand the endpoint vertices to encompass the AA boundary 178399585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase if (isAA) { 178499585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase vec2 abVector = (b - a); 178599585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase length = abVector.length(); 178699585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase abVector.normalize(); 178799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase if (scaled) { 178899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase abVector.x *= inverseScaleX; 178999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase abVector.y *= inverseScaleY; 179099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase float abLength = abVector.length(); 179199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase boundaryLengthProportion = abLength / (length + abLength); 179299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } else { 179399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase boundaryLengthProportion = .5 / (length + 1); 179499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } 179599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase abVector /= 2; 179699585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase a -= abVector; 179799585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase b += abVector; 179899585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase } 179999585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase 18005b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // Four corners of the rectangle defining a thick line 18015b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase vec2 p1 = a - n; 18025b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase vec2 p2 = a + n; 18035b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase vec2 p3 = b + n; 18045b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase vec2 p4 = b - n; 18055b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 180699585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase 18075b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase const float left = fmin(p1.x, fmin(p2.x, fmin(p3.x, p4.x))); 18085b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase const float right = fmax(p1.x, fmax(p2.x, fmax(p3.x, p4.x))); 18095b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase const float top = fmin(p1.y, fmin(p2.y, fmin(p3.y, p4.y))); 18105b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase const float bottom = fmax(p1.y, fmax(p2.y, fmax(p3.y, p4.y))); 18115b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 18125b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase if (!quickReject(left, top, right, bottom)) { 18135b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase if (!isAA) { 18145b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase if (prevVertex != NULL) { 18155b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // Issue two repeat vertices to create degenerate triangles to bridge 18165b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // between the previous line and the new one. This is necessary because 18175b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // we are creating a single triangle_strip which will contain 18185b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // potentially discontinuous line segments. 18195b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex::set(vertices++, prevVertex->position[0], prevVertex->position[1]); 18205b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex::set(vertices++, p1.x, p1.y); 18215b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase generatedVerticesCount += 2; 18225b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 18235b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex::set(vertices++, p1.x, p1.y); 18245b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex::set(vertices++, p2.x, p2.y); 18255b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex::set(vertices++, p4.x, p4.y); 18265b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase Vertex::set(vertices++, p3.x, p3.y); 18275b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase prevVertex = vertices - 1; 18285b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase generatedVerticesCount += 4; 18295b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } else { 183099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase if (!isHairLine && scaled) { 183199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // Must set width proportions per-segment for scaled non-hairlines to use the 183299ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase // correct AA boundary dimensions 183399ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase if (boundaryWidthSlot < 0) { 183499ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase boundaryWidthSlot = 183599ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase mCaches.currentProgram->getUniform("boundaryWidth"); 183699ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase inverseBoundaryWidthSlot = 183799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase mCaches.currentProgram->getUniform("inverseBoundaryWidth"); 183899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } 183999ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase glUniform1f(boundaryWidthSlot, boundaryWidthProportion); 184099ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase glUniform1f(inverseBoundaryWidthSlot, (1 / boundaryWidthProportion)); 184199ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase } 184299585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase if (boundaryLengthSlot < 0) { 184399585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase boundaryLengthSlot = mCaches.currentProgram->getUniform("boundaryLength"); 184499585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase inverseBoundaryLengthSlot = 184599585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase mCaches.currentProgram->getUniform("inverseBoundaryLength"); 184699585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase } 184799ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase glUniform1f(boundaryLengthSlot, boundaryLengthProportion); 184899ecdc480dd4f9b550b2a62ea39f77845a4fec49Chet Haase glUniform1f(inverseBoundaryLengthSlot, (1 / boundaryLengthProportion)); 184999585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase 18505b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase if (prevAAVertex != NULL) { 18515b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // Issue two repeat vertices to create degenerate triangles to bridge 18525b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // between the previous line and the new one. This is necessary because 18535b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // we are creating a single triangle_strip which will contain 18545b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // potentially discontinuous line segments. 185599585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex::set(aaVertices++,prevAAVertex->position[0], 185699585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase prevAAVertex->position[1], prevAAVertex->width, prevAAVertex->length); 185799585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex::set(aaVertices++, p4.x, p4.y, 1, 1); 18585b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase generatedVerticesCount += 2; 18595b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 186099585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex::set(aaVertices++, p4.x, p4.y, 1, 1); 186199585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex::set(aaVertices++, p1.x, p1.y, 1, 0); 186299585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex::set(aaVertices++, p3.x, p3.y, 0, 1); 186399585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase AAVertex::set(aaVertices++, p2.x, p2.y, 0, 0); 18645b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase prevAAVertex = aaVertices - 1; 18655b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase generatedVerticesCount += 4; 18665b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 186799585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase dirtyLayer(a.x == b.x ? left - 1 : left, a.y == b.y ? top - 1 : top, 186899585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase a.x == b.x ? right: right, a.y == b.y ? bottom: bottom, 186999585adeb4167ca357a72eb866f34c1af944f4b9Chet Haase *mSnapshot->transform); 18705b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 18715b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 18725b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase if (generatedVerticesCount > 0) { 18735b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase glDrawArrays(GL_TRIANGLE_STRIP, 0, generatedVerticesCount); 18745b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase } 18755b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase} 18765b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase 1877ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guyvoid OpenGLRenderer::drawPoints(float* points, int count, SkPaint* paint) { 1878ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy if (mSnapshot->isIgnored()) return; 1879ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 1880ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy // TODO: The paint's cap style defines whether the points are square or circular 1881ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy // TODO: Handle AA for round points 1882ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 18835b0200bd47e8a9a4dc8d2e6c3a110d522b30bf82Chet Haase // A stroke width of 0 has a special meaning in Skia: 1884ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy // it draws an unscaled 1px point 18858a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase float strokeWidth = paint->getStrokeWidth(); 1886ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy const bool isHairLine = paint->getStrokeWidth() == 0.0f; 18878a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase if (isHairLine) { 18888a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase // Now that we know it's hairline, we can set the effective width, to be used later 18898a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase strokeWidth = 1.0f; 18908a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase } 18918a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase const float halfWidth = strokeWidth / 2; 1892ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy int alpha; 1893ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy SkXfermode::Mode mode; 1894ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy getAlphaAndMode(paint, &alpha, &mode); 1895ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 1896ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy int verticesCount = count >> 1; 1897ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy int generatedVerticesCount = 0; 1898ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 1899ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy TextureVertex pointsData[verticesCount]; 1900ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy TextureVertex* vertex = &pointsData[0]; 1901ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 1902ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDraw(); 19038a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawPoint(strokeWidth); 1904ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawColor(paint->getColor(), alpha); 1905ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawColorFilter(); 1906ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawShader(); 1907ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawBlending(mode); 1908ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawProgram(); 19098a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase setupDrawModelViewIdentity(true); 1910ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawColorUniforms(); 1911ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawColorFilterUniforms(); 1912ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawPointUniforms(); 1913ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawShaderIdentityUniforms(); 1914ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy setupDrawMesh(vertex); 1915ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 1916ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy for (int i = 0; i < count; i += 2) { 1917ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy TextureVertex::set(vertex++, points[i], points[i + 1], 0.0f, 0.0f); 1918ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy generatedVerticesCount++; 19198a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase float left = points[i] - halfWidth; 19208a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase float right = points[i] + halfWidth; 19218a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase float top = points[i + 1] - halfWidth; 19228a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase float bottom = points [i + 1] + halfWidth; 19238a5cc92a150bae38ec43732d941b38bb381fe153Chet Haase dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1924ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy } 1925ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 1926ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy glDrawArrays(GL_POINTS, 0, generatedVerticesCount); 1927ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy} 1928ed6fcb034b44d9a6ac2fc72fee6030417811f234Romain Guy 192985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 1930e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // No need to check against the clip, we fill the clip region 1931af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy if (mSnapshot->isIgnored()) return; 1932e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 1933ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy Rect& clip(*mSnapshot->clipRect); 1934ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clip.snapToPixelBoundaries(); 193570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 19363d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 1937c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 19389d5316e3f56d138504565ff311145ac01621dff4Romain Guy 1939c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guyvoid OpenGLRenderer::drawShape(float left, float top, const PathTexture* texture, SkPaint* paint) { 194001d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy if (!texture) return; 194101d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy const AutoTexture autoCleanup(texture); 194201d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 194301d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy const float x = left + texture->left - texture->offset; 194401d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy const float y = top + texture->top - texture->offset; 194501d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 194601d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy drawPathTexture(texture, x, y, paint); 194701d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy} 194801d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 1949c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guyvoid OpenGLRenderer::drawRoundRect(float left, float top, float right, float bottom, 1950c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy float rx, float ry, SkPaint* paint) { 195101d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy if (mSnapshot->isIgnored()) return; 195201d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 195301d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy glActiveTexture(gTextureUnits[0]); 1954c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy const PathTexture* texture = mCaches.roundRectShapeCache.getRoundRect( 1955c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy right - left, bottom - top, rx, ry, paint); 1956c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy drawShape(left, top, texture, paint); 1957c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy} 195801d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 1959c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guyvoid OpenGLRenderer::drawCircle(float x, float y, float radius, SkPaint* paint) { 1960c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy if (mSnapshot->isIgnored()) return; 1961c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy 1962c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy glActiveTexture(gTextureUnits[0]); 196301d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy const PathTexture* texture = mCaches.circleShapeCache.getCircle(radius, paint); 1964c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy drawShape(x - radius, y - radius, texture, paint); 1965c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy} 196601d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 1967c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guyvoid OpenGLRenderer::drawOval(float left, float top, float right, float bottom, SkPaint* paint) { 1968c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy if (mSnapshot->isIgnored()) return; 196901d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 1970c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy glActiveTexture(gTextureUnits[0]); 1971c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy const PathTexture* texture = mCaches.ovalShapeCache.getOval(right - left, bottom - top, paint); 1972c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy drawShape(left, top, texture, paint); 1973c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy} 1974c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy 19758b2f5267f16c295f12faab810527cd6311997e34Romain Guyvoid OpenGLRenderer::drawArc(float left, float top, float right, float bottom, 19768b2f5267f16c295f12faab810527cd6311997e34Romain Guy float startAngle, float sweepAngle, bool useCenter, SkPaint* paint) { 19778b2f5267f16c295f12faab810527cd6311997e34Romain Guy if (mSnapshot->isIgnored()) return; 19788b2f5267f16c295f12faab810527cd6311997e34Romain Guy 19798b2f5267f16c295f12faab810527cd6311997e34Romain Guy if (fabs(sweepAngle) >= 360.0f) { 19808b2f5267f16c295f12faab810527cd6311997e34Romain Guy drawOval(left, top, right, bottom, paint); 19818b2f5267f16c295f12faab810527cd6311997e34Romain Guy return; 19828b2f5267f16c295f12faab810527cd6311997e34Romain Guy } 19838b2f5267f16c295f12faab810527cd6311997e34Romain Guy 19848b2f5267f16c295f12faab810527cd6311997e34Romain Guy glActiveTexture(gTextureUnits[0]); 19858b2f5267f16c295f12faab810527cd6311997e34Romain Guy const PathTexture* texture = mCaches.arcShapeCache.getArc(right - left, bottom - top, 19868b2f5267f16c295f12faab810527cd6311997e34Romain Guy startAngle, sweepAngle, useCenter, paint); 19878b2f5267f16c295f12faab810527cd6311997e34Romain Guy drawShape(left, top, texture, paint); 19888b2f5267f16c295f12faab810527cd6311997e34Romain Guy} 19898b2f5267f16c295f12faab810527cd6311997e34Romain Guy 1990c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guyvoid OpenGLRenderer::drawRectAsShape(float left, float top, float right, float bottom, 1991c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy SkPaint* paint) { 1992c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy if (mSnapshot->isIgnored()) return; 1993c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy 1994c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy glActiveTexture(gTextureUnits[0]); 1995c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy const PathTexture* texture = mCaches.rectShapeCache.getRect(right - left, bottom - top, paint); 1996c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy drawShape(left, top, texture, paint); 199701d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy} 199801d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 19995c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, SkPaint* p) { 2000c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy if (p->getStyle() != SkPaint::kFill_Style) { 2001c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy drawRectAsShape(left, top, right, bottom, p); 2002c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy return; 2003c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy } 2004c1cd9ba335b293f11e1082447ef08e474710a05fRomain Guy 20056926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 20066926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 20076926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 20086926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 2009026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 2010746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 2011a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 2012a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 2013a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 2014a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 2015a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 2016a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 2017a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 2018026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 2019026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 2020026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 2021181d0a6ccedee03789919d53c46540a8df751896Romain Guy if (p->isAntiAlias() && !mSnapshot->transform->isSimple()) { 2022858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase drawAARect(left, top, right, bottom, color, mode); 2023858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase } else { 2024858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase drawColorRect(left, top, right, bottom, color, mode); 2025858aa93ddb6e69e0503382af63bb681b6728aef1Chet Haase } 2026c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 20279d5316e3f56d138504565ff311145ac01621dff4Romain Guy 2028e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 2029e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 2030b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy if (text == NULL || count == 0) { 2031e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 2032e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 2033af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy if (mSnapshot->isIgnored()) return; 2034e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 203567ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy // TODO: We should probably make a copy of the paint instead of modifying 203667ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy // it; modifying the paint will change its generationID the first 203767ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy // time, which might impact caches. More investigation needed to 203867ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy // see if it matters. 203967ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy // If we make a copy, then drawTextDecorations() should *not* make 204067ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy // its own copy as it does right now. 2041f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy paint->setAntiAlias(true); 204267ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy#if RENDER_TEXT_AS_GLYPHS 204367ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy paint->setTextEncoding(SkPaint::kGlyphID_TextEncoding); 204467ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy#endif 2045e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 2046a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 2047e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 2048e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 2049e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 2050e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 2051e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 2052e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 2053e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 2054e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 2055e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 2056e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 2057e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 2058e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 2059e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 20603a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy const float oldX = x; 20613a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy const float oldY = y; 20626620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const bool pureTranslate = mSnapshot->transform->isPureTranslate(); 20636620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 20646620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy x = (int) floorf(x + mSnapshot->transform->getTranslateX() + 0.5f); 20656620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy y = (int) floorf(y + mSnapshot->transform->getTranslateY() + 0.5f); 20666620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 20676620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 2068b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 2069b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 2070fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 2071e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 207286568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy int alpha; 207386568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy SkXfermode::Mode mode; 207486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy getAlphaAndMode(paint, &alpha, &mode); 20759d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 20761e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 2077b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 207867ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get( 207967ffc36a79ce3a9a0b5da28b65123864b7d2597fRomain Guy paint, text, bytesCount, count, mShadowRadius); 20801e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 20810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 2082740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy const float sx = oldX - shadow->left + mShadowDx; 2083740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy const float sy = oldY - shadow->top + mShadowDy; 208486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy 208586568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 2086740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy int shadowColor = mShadowColor; 2087740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy if (mShader) { 2088740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy shadowColor = 0xffffffff; 2089740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy } 209086568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy 209186568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy glActiveTexture(gTextureUnits[0]); 209286568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDraw(); 209386568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawWithTexture(true); 2094740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy setupDrawAlpha8Color(shadowColor, shadowAlpha < 255 ? shadowAlpha : alpha); 2095740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy setupDrawColorFilter(); 2096740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy setupDrawShader(); 209786568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawBlending(true, mode); 209886568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawProgram(); 2099740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy setupDrawModelView(sx, sy, sx + shadow->width, sy + shadow->height); 210086568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawTexture(shadow->id); 210186568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawPureColorUniforms(); 2102740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy setupDrawColorFilterUniforms(); 2103740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy setupDrawShaderUniforms(); 210486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawMesh(NULL, (GLvoid*) gMeshTextureOffset); 21050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 21060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 2107740bf2bb2e900d3db2292b5909b4b4c6e90320e6Romain Guy 210886568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy finishDrawTexture(); 21091e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 21101e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 2111b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy if (paint->getAlpha() == 0 && paint->getXfermode() == NULL) { 2112b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy return; 2113b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy } 2114b146b1214ef6e4fc75d98779b22434335764cfdbRomain Guy 21156620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy // Pick the appropriate texture filtering 21166620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy bool linearFilter = mSnapshot->transform->changesBounds(); 21176620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate && !linearFilter) { 21186620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy linearFilter = fabs(y - (int) y) > 0.0f || fabs(x - (int) x) > 0.0f; 21196620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 21205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 212186568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy glActiveTexture(gTextureUnits[0]); 212286568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDraw(); 212386568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawDirtyRegionsDisabled(); 212486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawWithTexture(true); 212586568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawAlpha8Color(paint->getColor(), alpha); 212686568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawColorFilter(); 212786568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawShader(); 212886568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawBlending(true, mode); 212986568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawProgram(); 213086568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawModelView(x, y, x, y, pureTranslate, true); 213186568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawTexture(fontRenderer.getTexture(linearFilter)); 213286568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawPureColorUniforms(); 213386568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawColorFilterUniforms(); 213486568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawShaderUniforms(pureTranslate); 213506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 21366620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const Rect* clip = pureTranslate ? mSnapshot->clipRect : &mSnapshot->getLocalClip(); 21375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 21385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 21395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 2140f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy bool hasActiveLayer = hasLayer(); 21415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 2142f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy bool hasActiveLayer = false; 21435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 214403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 2145894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk 2146894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk // Tell font renderer the locations of position and texture coord 2147894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk // attributes so it can bind its data properly 2148894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk int positionSlot = mCaches.currentProgram->position; 2149894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk fontRenderer.setAttributeBindingSlots(positionSlot, mTexCoordsSlot); 21506620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (fontRenderer.renderText(paint, clip, text, 0, bytesCount, count, x, y, 2151f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy hasActiveLayer ? &bounds : NULL)) { 21525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 2153f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy if (hasActiveLayer) { 21546620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (!pureTranslate) { 21556620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mSnapshot->transform->mapRect(bounds); 21566620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 2157f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy dirtyLayerUnchecked(bounds, getRegion()); 21585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 21595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 21605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 2161694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 2162694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 2163fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 2164a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 21653a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy drawTextDecorations(text, bytesCount, length, oldX, oldY, paint); 2166694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 2167694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 21687fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 2169af636ebf5feb2837683fbfe965040cb706b32ec1Romain Guy if (mSnapshot->isIgnored()) return; 2170dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 217101d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy glActiveTexture(gTextureUnits[0]); 21727fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 2173fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 21749cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 217522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 21767fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 21778b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 21788b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 21798b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 218001d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy drawPathTexture(texture, x, y, paint); 21817fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 21827fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 2183ada830f639591b99c3e40de22b07296c7932a33fRomain Guyvoid OpenGLRenderer::drawLayer(Layer* layer, float x, float y, SkPaint* paint) { 2184ada830f639591b99c3e40de22b07296c7932a33fRomain Guy if (!layer || quickReject(x, y, x + layer->layer.getWidth(), y + layer->layer.getHeight())) { 21856c319ca1275c8db892c39b48fc54864c949f9171Romain Guy return; 21866c319ca1275c8db892c39b48fc54864c949f9171Romain Guy } 21876c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 21886c319ca1275c8db892c39b48fc54864c949f9171Romain Guy glActiveTexture(gTextureUnits[0]); 21896c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 21906c319ca1275c8db892c39b48fc54864c949f9171Romain Guy int alpha; 21916c319ca1275c8db892c39b48fc54864c949f9171Romain Guy SkXfermode::Mode mode; 21926c319ca1275c8db892c39b48fc54864c949f9171Romain Guy getAlphaAndMode(paint, &alpha, &mode); 21936c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 21949ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setAlpha(alpha, mode); 21956c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 2196f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy#if RENDER_LAYERS_AS_REGIONS 2197c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy if (!layer->region.isEmpty()) { 2198c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy if (layer->region.isRect()) { 219940667676e542a9daeafeac9904c30004e8706fd3Romain Guy composeLayerRect(layer, layer->regionRect); 2200c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy } else if (layer->mesh) { 22018168396d1acbcb5fdd29eeda4c30b2803d5283aeRomain Guy const float a = alpha / 255.0f; 2202c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy const Rect& rect = layer->layer; 2203c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy 2204c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy setupDraw(); 2205c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy setupDrawWithTexture(); 22068168396d1acbcb5fdd29eeda4c30b2803d5283aeRomain Guy setupDrawColor(a, a, a, a); 2207c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy setupDrawColorFilter(); 22089ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawBlending(layer->isBlend() || a < 1.0f, layer->getMode(), false); 2209c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy setupDrawProgram(); 2210c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy setupDrawPureColorUniforms(); 2211c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy setupDrawColorFilterUniforms(); 22129ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawTexture(layer->getTexture()); 22139ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy if (mSnapshot->transform->isPureTranslate()) { 22149ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy x = (int) floorf(x + mSnapshot->transform->getTranslateX() + 0.5f); 22159ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy y = (int) floorf(y + mSnapshot->transform->getTranslateY() + 0.5f); 22169ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 22179ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_NEAREST, GL_NEAREST); 22189ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawModelViewTranslate(x, y, 22199ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy x + layer->layer.getWidth(), y + layer->layer.getHeight(), true); 22209ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } else { 22219ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy layer->setFilter(GL_LINEAR, GL_LINEAR); 22229ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy setupDrawModelViewTranslate(x, y, 22239ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy x + layer->layer.getWidth(), y + layer->layer.getHeight()); 22249ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } 2225c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy setupDrawMesh(&layer->mesh[0].position[0], &layer->mesh[0].texture[0]); 2226c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy 2227c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy glDrawElements(GL_TRIANGLES, layer->meshElementCount, 2228c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy GL_UNSIGNED_SHORT, layer->meshIndices); 2229c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy 2230c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy finishDrawTexture(); 22313a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy 22323a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 22333a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy drawRegionRects(layer->region); 22343a3133d876caf60ebff2176ad75c3dcf0259148dRomain Guy#endif 2235c88e357d1ed9dadfc0efb3dfbe92f24460674ef5Romain Guy } 2236f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy } 2237f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy#else 2238ada830f639591b99c3e40de22b07296c7932a33fRomain Guy const Rect r(x, y, x + layer->layer.getWidth(), y + layer->layer.getHeight()); 2239ada830f639591b99c3e40de22b07296c7932a33fRomain Guy composeLayerRect(layer, r); 2240f219da5e32e85deb442468ee9a63bb28eb198557Romain Guy#endif 22416c319ca1275c8db892c39b48fc54864c949f9171Romain Guy} 22426c319ca1275c8db892c39b48fc54864c949f9171Romain Guy 22436926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 2244d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 2245d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 2246d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 2247d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 224806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 224906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 225006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 225106f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 225206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 225306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 2254fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 225506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 22567fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 22577fac2e18339f765320d759e8d4c090f92431959eRomain Guy 2258d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 2259db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 2260db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 2261db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 2262db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 2263db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 2264db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 2265db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 2266db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 2267db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 2268db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 2269db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 2270db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 22711e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 22721e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 22731e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 22741e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 22751e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 22761e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 22771e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 22781e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 22791e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 22801e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 22811e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 22821e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 22831e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 22841e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 22851e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 22861e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 22876926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 22886926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 22896926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 229001d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guyvoid OpenGLRenderer::drawPathTexture(const PathTexture* texture, 229101d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy float x, float y, SkPaint* paint) { 229201d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 229301d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy return; 229401d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy } 229501d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 229601d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy int alpha; 229701d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy SkXfermode::Mode mode; 229801d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy getAlphaAndMode(paint, &alpha, &mode); 229901d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 230001d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDraw(); 230101d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawWithTexture(true); 230201d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawAlpha8Color(paint->getColor(), alpha); 230301d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawColorFilter(); 230401d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawShader(); 230501d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawBlending(true, mode); 230601d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawProgram(); 230701d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawModelView(x, y, x + texture->width, y + texture->height); 230801d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawTexture(texture->id); 230901d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawPureColorUniforms(); 231001d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawColorFilterUniforms(); 231101d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawShaderUniforms(); 231201d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy setupDrawMesh(NULL, (GLvoid*) gMeshTextureOffset); 231301d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 231401d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 231501d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 231601d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy finishDrawTexture(); 231701d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy} 231801d58e43ede5ca98cbebdd166f9b0c545032c01bRomain Guy 2319f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy// Same values used by Skia 23200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 23210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 23220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 23230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 23240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 23250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 23260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 23270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 23280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 2329726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy SkPaint paintCopy(*paint); 23300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 23310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 23320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 2333726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy underlineWidth = paintCopy.measureText(text, bytesCount); 23340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 23350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 23360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 2337726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy switch (paintCopy.getTextAlign()) { 23380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 23390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 23400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 23410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 23420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 23430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 23440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 23450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 23460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 23470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 23480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 2349726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy const float textSize = paintCopy.getTextSize(); 2350f6834478b379856d3e5de92ddce7de0e6ba9fa4aRomain Guy const float strokeWidth = fmax(textSize * kStdUnderline_Thickness, 1.0f); 23510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 2352e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float left = x - offsetX; 23530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 2354e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 2355f6834478b379856d3e5de92ddce7de0e6ba9fa4aRomain Guy int linesCount = 0; 2356f6834478b379856d3e5de92ddce7de0e6ba9fa4aRomain Guy if (flags & SkPaint::kUnderlineText_Flag) linesCount++; 2357f6834478b379856d3e5de92ddce7de0e6ba9fa4aRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) linesCount++; 2358f6834478b379856d3e5de92ddce7de0e6ba9fa4aRomain Guy 2359f6834478b379856d3e5de92ddce7de0e6ba9fa4aRomain Guy const int pointsCount = 4 * linesCount; 2360e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy float points[pointsCount]; 2361e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy int currentPoint = 0; 23620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 23630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 23640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 2365e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 2366e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 2367e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 2368e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 23690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 23700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 23710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 23720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 2373e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 2374e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 2375e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 2376e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 23770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 2378e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 2379726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy paintCopy.setStrokeWidth(strokeWidth); 2380e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 2381726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy drawLines(&points[0], pointsCount, &paintCopy); 23820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 23830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 23840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 23850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 2386026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 23871c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 2388d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 238906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 2390d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 2391d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 2392d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 239370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDraw(); 239470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawColor(color); 239570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawShader(); 239670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawColorFilter(); 239770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawBlending(mode); 239870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawProgram(); 239970ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawModelView(left, top, right, bottom, ignoreTransform); 240070ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawColorUniforms(); 240170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawShaderUniforms(ignoreTransform); 240270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawColorFilterUniforms(); 240370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawSimpleMesh(); 2404c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 2405c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 2406c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy} 2407c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 240882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 24098164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture, SkPaint* paint) { 241082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 241182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 241282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 241382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 24148164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 24158164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy 24166620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (mSnapshot->transform->isPureTranslate()) { 24176620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(left + mSnapshot->transform->getTranslateX() + 0.5f); 24186620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(top + mSnapshot->transform->getTranslateY() + 0.5f); 24196620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 24206620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + texture->width, y + texture->height, texture->id, 24216620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy alpha / 255.0f, mode, texture->blend, (GLvoid*) NULL, 24226620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount, false, true); 24236620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 24246620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, 24256620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy texture->blend, (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, 24266620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 24276620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 242885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 242985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 2430bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 2431a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 2432a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 243303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount); 2434f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 2435f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 2436f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 2437a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 24386820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 24395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool swapSrcDst, bool ignoreTransform, GLuint vbo, bool ignoreScale, bool dirty) { 24408694230ff25fa0a60e480d424843e56b718f0516Romain Guy 244170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDraw(); 244270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawWithTexture(); 244370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawColor(alpha, alpha, alpha, alpha); 244470ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawColorFilter(); 244570ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawBlending(blend, mode, swapSrcDst); 244670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawProgram(); 244770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy if (!dirty) { 244870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawDirtyRegionsDisabled(); 2449db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 24505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!ignoreScale) { 245170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawModelView(left, top, right, bottom, ignoreTransform); 245203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 245370ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawModelViewTranslate(left, top, right, bottom, ignoreTransform); 2454db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 245586568198f2c83d4ce5c4cd692eda074ba9de9ed2Romain Guy setupDrawPureColorUniforms(); 245670ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawColorFilterUniforms(); 245770ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawTexture(texture); 245870ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy setupDrawMesh(vertices, texCoords, vbo); 2459db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 24606820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy glDrawArrays(drawMode, 0, elementsCount); 246170ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy 246270ca14e08ae197547ac412e8a1210e1ebdfb2eb1Romain Guy finishDrawTexture(); 246382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 246482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 2465a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 2466f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy ProgramDescription& description, bool swapSrcDst) { 246782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 246882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 2469a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 2470a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 2471a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 2472a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 247382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 2474f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 2475f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 247682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 2477a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 2478a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 2479a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 2480a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 2481a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 2482a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 2483a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 2484a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 2485a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 2486746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mCaches.extensions.hasFramebufferFetch()) { 2487a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 2488f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy description.swapSrcDst = swapSrcDst; 2489a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 2490a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 2491a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 2492a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 2493a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 2494a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 249582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 2496fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 249782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 249882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 2499fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 2500bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 2501bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2502889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 2503d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 2504fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 2505d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 2506fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 25076926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 2508260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 25096926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 2510260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 2511260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 2512026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 2513ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 251482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 251582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 251682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 251782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 25188ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 25198ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 25205c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::getAlphaAndMode(SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 25218ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 2522746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 2523a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 2524a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 2525a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 2526a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 2527a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 2528a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 2529a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 25308ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 25318ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 25328ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 25338ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 25348ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 25358ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 25368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 25378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 25388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 25398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 25408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 25418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 25428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 2543026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 2544026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 2545a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 2546d39d1affe82cb8c21d32baaa5fbb2d6afb806f8eDerek Sollenberger SkXfermode::Mode resultMode; 2547d39d1affe82cb8c21d32baaa5fbb2d6afb806f8eDerek Sollenberger if (!SkXfermode::AsMode(mode, &resultMode)) { 2548d39d1affe82cb8c21d32baaa5fbb2d6afb806f8eDerek Sollenberger resultMode = SkXfermode::kSrcOver_Mode; 2549a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 2550d39d1affe82cb8c21d32baaa5fbb2d6afb806f8eDerek Sollenberger return resultMode; 2551a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 2552a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 2553746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setTextureWrapModes(Texture* texture, GLenum wrapS, GLenum wrapT) { 25548164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bool bound = false; 25558164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapS != texture->wrapS) { 25568164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 25578164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bound = true; 25588164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 25598164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapS = wrapS; 25608164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 25618164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapT != texture->wrapT) { 25623e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy if (!bound) { 25633e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 25643e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy } 25658164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 25668164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapT = wrapT; 25678164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 2568a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 2569a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 25709d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 2571e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 2572