OpenGLRenderer.cpp revision e45362cad94c014d8b3765cb102db0f8c0d92500
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 295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#include <ui/Rect.h> 305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 3185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "OpenGLRenderer.h" 32e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 33e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 349d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 359d5316e3f56d138504565ff311145ac01621dff4Romain Guy 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 379d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 389d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 399d5316e3f56d138504565ff311145ac01621dff4Romain Guy 40759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define RAD_TO_DEG (180.0f / 3.14159265f) 41759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define MIN_ANGLE 0.001f 42759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 43dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy// TODO: This should be set in properties 44dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy#define ALPHA_THRESHOLD (0x7f / PANEL_BIT_DEPTH) 45dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 469d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 479d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 489d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 499d5316e3f56d138504565ff311145ac01621dff4Romain Guy 50889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 51889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 52889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 53889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 54889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 55889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 56889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 57889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 58889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 59026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 60026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 61026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 62026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 63026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 64026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 68026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 69026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 70026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 71026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 75e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 7687a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// This array contains the swapped version of each SkXfermode. For instance 7787a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// this array's SrcOver blending mode is actually DstOver. You can refer to 7887a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// createLayer() for more information on the purpose of this array. 79f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guystatic const Blender gBlendsSwap[] = { 80f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 81f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE }, 82f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDst_Mode, GL_ONE, GL_ZERO }, 83f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 84f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 85f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 86f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO }, 87f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 88f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 89f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 90f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 91f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 92f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy}; 93f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 94889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 9506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 9606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 9706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 98d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 99d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 100f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 101f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 103f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 104fb8b763f762ae21923c58d64caa729b012f40e05Romain GuyOpenGLRenderer::OpenGLRenderer(): mCaches(Caches::getInstance()) { 10506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 106db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1071e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 108026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 109ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 110ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 111ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 112e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 113e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 11485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 11529d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // The context has already been destroyed at this point, do not call 11629d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // GL APIs. All GL state should be kept in Caches.h 117e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 118e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 119f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 120f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 121f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 122f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 12385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 12408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 125260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 126bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 127bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 128bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 129eb99356a0548684a501766e6a524529ab93304c8Romain Guy 130eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->height = height; 131eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->viewport.set(0, 0, width, height); 132746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 133746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 134e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 135e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 1366b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guyvoid OpenGLRenderer::prepare(bool opaque) { 1378aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1388aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 1398fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 140f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 141fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 142fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 143d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 144bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1456b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy if (!opaque) { 146746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glDisable(GL_SCISSOR_TEST); 1476b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 1486b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClear(GL_COLOR_BUFFER_BIT); 149746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glEnable(GL_SCISSOR_TEST); 150746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy } else { 151746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glEnable(GL_SCISSOR_TEST); 152746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glScissor(0, 0, mWidth, mHeight); 153746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 1546b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy } 155bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 156b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 157bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 158bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 159b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guyvoid OpenGLRenderer::finish() { 160b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#if DEBUG_OPENGL 161b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy GLenum status = GL_NO_ERROR; 162b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy while ((status = glGetError()) != GL_NO_ERROR) { 163b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy LOGD("GL error from OpenGLRenderer: 0x%x", status); 164b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 165b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#endif 166b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy} 167b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy 168da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 169da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 170da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 171da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 172da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 173da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 174da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 17550c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.unbindMeshBuffer(); 176da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 177da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 178da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 179eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 180da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 181da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 182746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 183da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 184f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glDisable(GL_DITHER); 185f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 186f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, 0); 18703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 18850c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy 18950c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.blend = true; 19050c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glEnable(GL_BLEND); 19150c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 19250c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendEquation(GL_FUNC_ADD); 193da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 194da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 195f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 196f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 197f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 198f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 2007ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 202bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 203bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2048aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 206bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2082542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2092542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 211bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 212bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2148fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2168fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2172542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2218aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 2228aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 2238fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 224bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 225bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 226bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2277ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 228bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 229eb99356a0548684a501766e6a524529ab93304c8Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 230bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 231bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2327ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 233bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 234eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (restoreOrtho) { 235eb99356a0548684a501766e6a524529ab93304c8Romain Guy Rect& r = previous->viewport; 236eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 237eb99356a0548684a501766e6a524529ab93304c8Romain Guy mOrthoMatrix.load(current->orthoMatrix); 238eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 239eb99356a0548684a501766e6a524529ab93304c8Romain Guy 2408b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2418b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2428b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 2432542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 244746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 2458fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2462542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2475ec9924d24495822b589f1a17996655d66273b30Romain Guy if (restoreLayer) { 2485ec9924d24495822b589f1a17996655d66273b30Romain Guy composeLayer(current, previous); 2495ec9924d24495822b589f1a17996655d66273b30Romain Guy } 2505ec9924d24495822b589f1a17996655d66273b30Romain Guy 2512542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 252d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2535cbbce535744b89df5ecea95de21ee3733298260Romain Guy 254f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 255bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 256bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 257bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 258bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 2595c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* p, int flags) { 260eb99356a0548684a501766e6a524529ab93304c8Romain Guy const GLuint previousFbo = mSnapshot->fbo; 261eb99356a0548684a501766e6a524529ab93304c8Romain Guy const int count = saveSnapshot(flags); 262d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 263e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mSnapshot->invisible) { 264e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy int alpha = 255; 265e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy SkXfermode::Mode mode; 266e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 267e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (p) { 268e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy alpha = p->getAlpha(); 269e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 270e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 271e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!isMode) { 272e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // Assume SRC_OVER 273e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 274e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } 275e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } else { 276e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = getXfermode(p->getXfermode()); 277a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 278a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 279e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 280d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 282dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags, previousFbo); 283dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 284d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 285d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 286bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 287bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 288bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 289bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 2905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (alpha >= 255 - ALPHA_THRESHOLD) { 2918aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 2928b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2938aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 2948aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 2958aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 2968b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 298bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2991c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 3001c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Layers are viewed by Skia are slightly different than layers in image editing 3011c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * programs (for instance.) When a layer is created, previously created layers 3021c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * and the frame buffer still receive every drawing command. For instance, if a 3031c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * layer is created and a shape intersecting the bounds of the layers and the 3041c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * framebuffer is draw, the shape will be drawn on both (unless the layer was 3051c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 3061c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3071c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * A way to implement layers is to create an FBO for each layer, backed by an RGBA 3081c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * texture. Unfortunately, this is inefficient as it requires every primitive to 3091c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be drawn n + 1 times, where n is the number of active layers. In practice this 3101c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * means, for every primitive: 3111c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Switch active frame buffer 3121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Change viewport, clip and projection matrix 3131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Issue the drawing 3141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3151c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Switching rendering target n + 1 times per drawn primitive is extremely costly. 3166b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * To avoid this, layers are implemented in a different way here, at least in the 3176b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * general case. FBOs are used, as an optimization, when the "clip to layer" flag 3186b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * is set. When this flag is set we can redirect all drawing operations into a 3196b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * single FBO. 3201c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3211c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * This implementation relies on the frame buffer being at least RGBA 8888. When 3221c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * a layer is created, only a texture is created, not an FBO. The content of the 3231c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer contained within the layer's bounds is copied into this texture 32487a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame 3251c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * buffer and drawing continues as normal. This technique therefore treats the 3261c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer as a scratch buffer for the layers. 3271c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3281c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To compose the layers back onto the frame buffer, each layer texture 3291c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * (containing the original frame buffer data) is drawn as a simple quad over 3301c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * the frame buffer. The trick is that the quad is set as the composition 3311c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * destination in the blending equation, and the frame buffer becomes the source 3321c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * of the composition. 3331c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3341c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Drawing layers with an alpha value requires an extra step before composition. 3351c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * An empty quad is drawn over the layer's region in the frame buffer. This quad 3361c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 3371c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * quad is used to multiply the colors in the frame buffer. This is achieved by 3381c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * changing the GL blend functions for the GL_FUNC_ADD blend equation to 3391c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * GL_ZERO, GL_SRC_ALPHA. 3401c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3411c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Because glCopyTexImage2D() can be slow, an alternative implementation might 3421c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be use to draw a single clipped layer. The implementation described above 3431c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is correct in every case. 34487a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * 34587a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * (1) The frame buffer is actually not cleared right away. To allow the GPU 34687a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * to potentially optimize series of calls to glCopyTexImage2D, the frame 34787a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * buffer is left untouched until the first drawing operation. Only when 34887a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * something actually gets drawn are the layers regions cleared. 3491c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 350d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 351eb99356a0548684a501766e6a524529ab93304c8Romain Guy float right, float bottom, int alpha, SkXfermode::Mode mode, 352eb99356a0548684a501766e6a524529ab93304c8Romain Guy int flags, GLuint previousFbo) { 353eb99356a0548684a501766e6a524529ab93304c8Romain Guy LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top); 354fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 355dda570201ac851dd85af3861f7e575721d3345daRomain Guy 356eb99356a0548684a501766e6a524529ab93304c8Romain Guy const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag; 357eb99356a0548684a501766e6a524529ab93304c8Romain Guy 358f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Window coordinates of the layer 3598aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 360ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (fboLayer) { 361ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // Clear the previous layer regions before we change the viewport 362ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clearLayerRegions(); 363ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 364eb99356a0548684a501766e6a524529ab93304c8Romain Guy mSnapshot->transform->mapRect(bounds); 365ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 366eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Layers only make sense if they are in the framebuffer's bounds 36758ae6db4ff8a9d0910e1183ee8be9a038a2712a6Romain Guy bounds.intersect(*snapshot->clipRect); 368ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 369ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // We cannot work with sub-pixels in this case 370ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy bounds.snapToPixelBoundaries(); 371ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy 372ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // When the layer is not an FBO, we may use glCopyTexImage so we 373ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // need to make sure the layer does not extend outside the bounds 374ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // of the framebuffer 375ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy bounds.intersect(snapshot->previous->viewport); 376eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 377bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy 378746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (bounds.isEmpty() || bounds.getWidth() > mCaches.maxTextureSize || 379746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bounds.getHeight() > mCaches.maxTextureSize) { 380dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy snapshot->invisible = true; 381dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } else { 382e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy snapshot->invisible = snapshot->invisible || (alpha <= ALPHA_THRESHOLD && fboLayer); 383dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 384dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 385dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy // Bail out if we won't draw in this snapshot 386dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (snapshot->invisible) { 387b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy return false; 388b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 389dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glActiveTexture(gTextureUnits[0]); 3918550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy Layer* layer = mCaches.layerCache.get(bounds.getWidth(), bounds.getHeight()); 392f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 393f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 394bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 395bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 396dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 397f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy layer->alpha = alpha; 3988aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 3998550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy layer->texCoords.set(0.0f, bounds.getHeight() / float(layer->height), 4008550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy bounds.getWidth() / float(layer->width), 0.0f); 401dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4028fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 4038fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 404dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 4051d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 406eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 4075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return createFboLayer(layer, bounds, snapshot, previousFbo); 408eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 409eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Copy the framebuffer into the layer 410eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 411eb99356a0548684a501766e6a524529ab93304c8Romain Guy 412ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (layer->empty) { 413ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bounds.left, 414ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, layer->width, layer->height, 0); 415ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy layer->empty = false; 416ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 417ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bounds.left, 418ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, bounds.getWidth(), bounds.getHeight()); 419ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } 420eb99356a0548684a501766e6a524529ab93304c8Romain Guy 421eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Enqueue the buffer coordinates to clear the corresponding region later 422eb99356a0548684a501766e6a524529ab93304c8Romain Guy mLayers.push(new Rect(bounds)); 423eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 424f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 425d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 426bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 427bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 4285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guybool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, sp<Snapshot> snapshot, 4295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLuint previousFbo) { 4305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->fbo = mCaches.fboCache.get(); 4315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 4335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->region = &snapshot->layer->region; 4345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagFboTarget; 4355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clip(bounds); 4385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->transform->mapRect(clip); 4395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(*snapshot->clipRect); 4405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(snapshot->previous->viewport); 4425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 inverse; 4445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.loadInverse(*mSnapshot->transform); 4455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.mapRect(clip); 4475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(bounds); 4495ec9924d24495822b589f1a17996655d66273b30Romain Guy clip.translate(-bounds.left, -bounds.top); 4505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagIsFboLayer; 4525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->fbo = layer->fbo; 4535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 4545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy //snapshot->resetClip(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom); 4565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->height = bounds.getHeight(); 4585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 4595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 4605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Bind texture to FBO 4625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 4635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 4645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Initialize the texture if needed 4665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->empty) { 4675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->empty = false; 4685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, layer->width, layer->height, 0, 4695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 4705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 4735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->texture, 0); 4745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 4765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); 4775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (status != GL_FRAMEBUFFER_COMPLETE) { 4785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy LOGE("Framebuffer incomplete (GL error code 0x%x)", status); 4795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 4815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDeleteTextures(1, &layer->texture); 4825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.fboCache.put(layer->fbo); 4835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy delete layer; 4855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return false; 4875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the FBO, expand the clear region by 1 to get nice bilinear filtering 4915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(clip.left - 1.0f, bounds.getHeight() - clip.bottom - 1.0f, 4925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.getWidth() + 2.0f, clip.getHeight() + 2.0f); 4935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 4945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 4955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 4975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Change the ortho projection 4995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 5005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 5015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return true; 5035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5051c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 5061c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Read the documentation of createLayer() before doing anything in this method. 5071c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 5081d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 5091d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 5101d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 5111d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 5121d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5131d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool fboLayer = current->flags & Snapshot::kFlagIsFboLayer; 515eb99356a0548684a501766e6a524529ab93304c8Romain Guy 516eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 517eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Unbind current FBO and restore previous one 518eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 519eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 520eb99356a0548684a501766e6a524529ab93304c8Romain Guy 5211d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 5221d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 5231d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 524eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (!fboLayer && layer->alpha < 255) { 525f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawColorRect(rect.left, rect.top, rect.right, rect.bottom, 5261c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy layer->alpha << 24, SkXfermode::kDstIn_Mode, true); 5275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Required below, composeLayerRect() will divide by 255 5285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha = 255; 529f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 530f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 53103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 5328b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 533746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 5345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // When the layer is stored in an FBO, we can save a bit of fillrate by 5365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // drawing only the dirty region 537eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 5385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom, *previous->transform); 5395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRegion(layer, rect); 540eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 5415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom); 5425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect, true); 543eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 5441d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 545eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 546eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Detach the texture from the FBO 547eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, current->fbo); 548eb99356a0548684a501766e6a524529ab93304c8Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 549eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 550eb99356a0548684a501766e6a524529ab93304c8Romain Guy 551eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Put the FBO name back in the cache, if it doesn't fit, it will be destroyed 552eb99356a0548684a501766e6a524529ab93304c8Romain Guy mCaches.fboCache.put(current->fbo); 553eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 554eb99356a0548684a501766e6a524529ab93304c8Romain Guy 555746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 556746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 557eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Failing to add the layer to the cache should happen only if the layer is too large 5588550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy if (!mCaches.layerCache.put(layer)) { 5591d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 5601d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 5611d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 5621d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5631d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 5641d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRect(Layer* layer, const Rect& rect, bool swap) { 5665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const Rect& texCoords = layer->texCoords; 5675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(texCoords.left, texCoords.top, texCoords.right, texCoords.bottom); 5685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureMesh(rect.left, rect.top, rect.right, rect.bottom, layer->texture, 5705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha / 255.0f, layer->mode, layer->blend, &mMeshVertices[0].position[0], 5715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy &mMeshVertices[0].texture[0], GL_TRIANGLE_STRIP, gMeshCount, swap, swap); 5725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 5745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) { 5775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 5785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->region.isRect()) { 5795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 5805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 5815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return; 5825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 5835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!layer->region.isEmpty()) { 5855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy size_t count; 5865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* rects = layer->region.getArray(&count); 5875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy setupDraw(); 5895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy ProgramDescription description; 5915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy description.hasTexture = true; 5925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float alpha = layer->alpha / 255.0f; 5945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 5955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy chooseBlending(layer->blend || layer->alpha < 255, layer->mode, description, false); 5965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy useProgram(mCaches.programCache.get(description)); 5985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Texture 6005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bindTexture(layer->texture); 6015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 6025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Always premultiplied 6045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (setColor) { 6055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 6065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mesh 6095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 6105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 6115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.loadIdentity(); 6135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 6145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texX = 1.0f / float(layer->width); 6165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texY = 1.0f / float(layer->height); 6175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex* mesh = mCaches.getRegionMesh(); 6195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLsizei numQuads = 0; 6205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 6225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].position[0]); 6235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 6245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].texture[0]); 6255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* r = &rects[i]; 6285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u1 = r->left * texX; 6305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v1 = (rect.getHeight() - r->top) * texY; 6315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u2 = r->right * texX; 6325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v2 = (rect.getHeight() - r->bottom) * texY; 6335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Reject quads outside of the clip 6355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->top, u1, v1); 6365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->top, u2, v1); 6375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->bottom, u1, v2); 6385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->bottom, u2, v2); 6395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads++; 6415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads >= REGION_MESH_QUAD_COUNT) { 6435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads = 0; 6455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mesh = mCaches.getRegionMesh(); 6465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads > 0) { 6505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 6545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 6555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 6575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t colors[] = { 6585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7fff0000, 0x7f00ff00, 6595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7f0000ff, 0x7fff00ff, 6605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy }; 6615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int offset = 0; 6635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int32_t top = rects[0].top; 6645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int i = 0; 6655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (top != rects[i].top) { 6685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy offset ^= 0x2; 6695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy top = rects[i].top; 6705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect r(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom); 6735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawColorRect(r.left, r.top, r.right, r.bottom, colors[offset + (i & 0x1)], 6745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy SkXfermode::kSrcOver_Mode); 6755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 6795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 6815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 6825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 6845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 6865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom, const mat4 transform) { 6875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 6885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 6895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 6905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy transform.mapRect(bounds); 6915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 6925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 6935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 6955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 6965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 6975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 7035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom) { 7045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 7055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 7065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 7075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 7085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 7095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 7115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 7125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 7135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 718746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setupDraw() { 719746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy clearLayerRegions(); 720746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mDirtyClip) { 721746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setScissorFromClip(); 722746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy } 723746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy} 724746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 7258694230ff25fa0a60e480d424843e56b718f0516Romain Guyvoid OpenGLRenderer::clearLayerRegions() { 726dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mLayers.size() == 0 || mSnapshot->invisible) return; 7278694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clipRect(*mSnapshot->clipRect); 7295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clipRect.snapToPixelBoundaries(); 7305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7318694230ff25fa0a60e480d424843e56b718f0516Romain Guy for (uint32_t i = 0; i < mLayers.size(); i++) { 7328694230ff25fa0a60e480d424843e56b718f0516Romain Guy Rect* bounds = mLayers.itemAt(i); 7335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (clipRect.intersects(*bounds)) { 7345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the framebuffer where the layer will draw 7355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(bounds->left, mSnapshot->height - bounds->bottom, 7365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds->getWidth(), bounds->getHeight()); 7375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 7385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 7395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Restore the clip 7415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 7425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7438694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7448694230ff25fa0a60e480d424843e56b718f0516Romain Guy delete bounds; 7458694230ff25fa0a60e480d424843e56b718f0516Romain Guy } 7468694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mLayers.clear(); 7488694230ff25fa0a60e480d424843e56b718f0516Romain Guy} 7498694230ff25fa0a60e480d424843e56b718f0516Romain Guy 750bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 751f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 752f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 753f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 754f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 7558aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 756f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 757f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 758f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 7598aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 760f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 761f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 762f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 7638aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 764f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 765f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 766f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 7678aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 768f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 769f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 77041030da16856c8869e1e51d4a0405432fa96614eRomain Guyconst float* OpenGLRenderer::getMatrix() const { 77199bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy if (mSnapshot->fbo != 0) { 77299bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mSnapshot->transform->data[0]; 77399bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy } 77499bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mIdentity.data[0]; 77541030da16856c8869e1e51d4a0405432fa96614eRomain Guy} 77641030da16856c8869e1e51d4a0405432fa96614eRomain Guy 777f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 7788aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 779f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 780f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 781f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 782e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy SkMatrix transform; 783e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->copyTo(transform); 784e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy transform.preConcat(*matrix); 785e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->load(transform); 786f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 787f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 788f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 789f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 790f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 791f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 792bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 793e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy Rect clip(*mSnapshot->clipRect); 794e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy clip.snapToPixelBoundaries(); 795eb99356a0548684a501766e6a524529ab93304c8Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 796746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 7979d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 7989d5316e3f56d138504565ff311145ac01621dff4Romain Guy 7999d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 800079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 801bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 802bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 803c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 804dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) { 805dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy return true; 806dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 807dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 8081d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 8098aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 810d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy r.snapToPixelBoundaries(); 811d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 812d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy Rect clipRect(*mSnapshot->clipRect); 813d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy clipRect.snapToPixelBoundaries(); 814d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 815d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy return !clipRect.intersects(r); 816c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 817c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 818079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 819079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 8207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 821746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 8227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 8238aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 824e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 825e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 826f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 827f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 828f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 829f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 8305c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, SkPaint* paint) { 8316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 8326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 8336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 8346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 8356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 83861c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8398164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8409cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 84122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 84222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8436926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 8448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8458ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8465c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) { 847f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 848f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 849f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 850f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 8526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8546926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 85561c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8568164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8579cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 85822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 85922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // This could be done in a cheaper way, all we need is pass the matrix 8615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // to the vertex shader. The save/restore is a bit overkill. 8625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy save(SkCanvas::kMatrix_SaveFlag); 8635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy concatMatrix(matrix); 8645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureRect(0.0f, 0.0f, bitmap->width(), bitmap->height(), texture, paint); 8655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy restore(); 866f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 867f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 8698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 8708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 8715c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* paint) { 8726926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 8736926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8746926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8756926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 876746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 8778164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8789cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 87922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 8808164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 8818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 8838ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 884c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 8858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 8868ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 8878ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 8888ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 889c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 89003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 8918ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 8928ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 89303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy int alpha; 89403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy SkXfermode::Mode mode; 89503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy getAlphaAndMode(paint, &alpha, &mode); 89603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 89703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy drawTextureMesh(dstLeft, dstTop, dstRight, dstBottom, texture->id, alpha / 255.0f, 89803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mode, texture->blend, &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 89903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy GL_TRIANGLE_STRIP, gMeshCount); 9008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 902ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 903ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 9044aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int32_t* yDivs, 9054bb942083a0d4db746adf95349108dd8ef842e32Romain Guy const uint32_t* colors, uint32_t width, uint32_t height, int8_t numColors, 9065c13d89c1332fcc499379b9064b891187b75ca32Chet Haase float left, float top, float right, float bottom, SkPaint* paint) { 9076926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 9086926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 9096926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 9106926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 911746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 9128164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 9139cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 91422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 9158164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 916f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 917f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 918f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 919f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 920f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9212728f961614a385df1f056fc24803a9f65c90fabRomain Guy const Patch* mesh = mCaches.patchCache.get(bitmap->width(), bitmap->height(), 9224bb942083a0d4db746adf95349108dd8ef842e32Romain Guy right - left, bottom - top, xDivs, yDivs, colors, width, height, numColors); 923f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 924054dc1840941665e32036f9523df51720ad069c8Romain Guy if (mesh) { 9255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mark the current layer dirty where we are going to draw the patch 9265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && 9275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region && mesh->hasEmptyQuads) { 9285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const size_t count = mesh->quads.size(); 9295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 9305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds = mesh->quads.itemAt(i); 9315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, 9325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy *mSnapshot->transform); 9335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 9345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 9355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 9365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, 93703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 9385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GL_TRIANGLES, mesh->verticesCount, false, false, mesh->meshBuffer, 9395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy true, !mesh->hasEmptyQuads); 940054dc1840941665e32036f9523df51720ad069c8Romain Guy } 941f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 942f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9435c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawLines(float* points, int count, SkPaint* paint) { 944dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 945dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 946759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy int alpha; 947759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode; 948759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy getAlphaAndMode(paint, &alpha, &mode); 949759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 950759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy uint32_t color = paint->getColor(); 951759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat a = alpha / 255.0f; 952759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 953759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 954759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 955759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 956c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const bool isAA = paint->isAntiAlias(); 957c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 958c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy GLuint textureUnit = 0; 959746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 96029d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy setupTextureAlpha8(mCaches.line.getTexture(), 0, 0, textureUnit, 0.0f, 0.0f, r, g, b, a, 96103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mode, false, true, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 96203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.line.getMeshBuffer()); 963c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 964c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy setupColorRect(0.0f, 0.0f, 1.0f, 1.0f, r, g, b, a, mode, false); 965c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 966c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 967c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const float strokeWidth = paint->getStrokeWidth(); 96829d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy const GLsizei elementsCount = isAA ? mCaches.line.getElementsCount() : gMeshCount; 969c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const GLenum drawMode = isAA ? GL_TRIANGLES : GL_TRIANGLE_STRIP; 970759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 971759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy for (int i = 0; i < count; i += 4) { 972759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float tx = 0.0f; 973759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float ty = 0.0f; 974759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 975c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 97629d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mCaches.line.update(points[i], points[i + 1], points[i + 2], points[i + 3], 977c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy strokeWidth, tx, ty); 978c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 979b5ab4173e0927e4668a45298c9900cd8007584e1Romain Guy ty = strokeWidth <= 1.0f ? 0.0f : -strokeWidth * 0.5f; 980c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 981759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 982759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dx = points[i + 2] - points[i]; 983759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dy = points[i + 3] - points[i + 1]; 984759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float mag = sqrtf(dx * dx + dy * dy); 985759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float angle = acos(dx / mag); 986759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 987759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.loadTranslate(points[i], points[i + 1], 0.0f); 988759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (angle > MIN_ANGLE || angle < -MIN_ANGLE) { 989759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.rotate(angle * RAD_TO_DEG, 0.0f, 0.0f, 1.0f); 990759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 991759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.translate(tx, ty, 0.0f); 992c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (!isAA) { 99329d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy float length = mCaches.line.getLength(points[i], points[i + 1], 99429d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy points[i + 2], points[i + 3]); 995c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy mModelView.scale(length, strokeWidth, 1.0f); 996c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 997759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 9985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Add bounds to the layer's region 999759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1000759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (mShader) { 1001759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mShader->updateTransforms(mCaches.currentProgram, mModelView, *mSnapshot); 1002759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1003759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1004c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1005759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1006759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 100729d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy if (isAA) { 100829d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 100929d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy } 1010759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1011759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 101285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 1013e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // No need to check against the clip, we fill the clip region 1014e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (mSnapshot->invisible) return; 1015e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 1016ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy Rect& clip(*mSnapshot->clipRect); 1017ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clip.snapToPixelBoundaries(); 10183d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 1019c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 10209d5316e3f56d138504565ff311145ac01621dff4Romain Guy 10215c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, SkPaint* p) { 10226926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 10236926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 10246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 10256926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 1026026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 1027746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1028a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 1029a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1030a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1031a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 1032a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1033a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1034a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 1035026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1036026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1037026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 1038026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 1039026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 1040d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 1041026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 1042026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1043026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1044026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 1045c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 10469d5316e3f56d138504565ff311145ac01621dff4Romain Guy 1047e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 1048e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 1049f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 1050e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 1051e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1052dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1053e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1054f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy paint->setAntiAlias(true); 1055e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 1056a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 1057e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 1058e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 1059e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1060e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 1061e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1062e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 1063e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1064e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 1065e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1066e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 1067e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1068e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1069e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 1070694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 1071694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 1072694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 1073694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 10742542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 10752542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 10762542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 10772542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 10782542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 10792542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 1080b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 1081b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 1082fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 1083e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1084746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 10859d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 10861e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 10871e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 1088b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 1089fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 10901e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 10911e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 10920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10932542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 10940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 10960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1097fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 10981e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 10991e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 110006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 1101db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 110206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 1103e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy // Assume that the modelView matrix does not force scales, rotates, etc. 1104e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const bool linearFilter = mSnapshot->transform->changesBounds(); 11055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Dimensions are set to (0,0), the layer (if any) won't be dirtied 1107e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy setupTextureAlpha8(fontRenderer.getTexture(linearFilter), 0, 0, textureUnit, 110803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy x, y, r, g, b, a, mode, false, true, NULL, NULL); 110906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 111009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 11115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 11125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 11145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = (mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region; 11155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 11165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = false; 11175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 11189d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 111903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 11205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (fontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y, 11215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy hasLayer ? &bounds : NULL)) { 11225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 11235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (hasLayer) { 11245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->transform->mapRect(bounds); 11255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 11265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 11275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 11295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 11305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 11315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 11325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1133694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1134694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 1135fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 1136a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 11370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 1138694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 1139694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 11407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 1141dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1142dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 11437fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 11447fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 11457fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 1146fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 11479cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 114822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 11497fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11508b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 11518b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 11528b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 11538b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 11548b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 11558b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 11568b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 11577fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 11587fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 11597fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 11607fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11617fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 11627fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 11637fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 11647fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 11657fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 11667fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 11680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1169746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 11708694230ff25fa0a60e480d424843e56b718f0516Romain Guy 11710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 11720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1173fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 11747fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 11757fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11766926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 1177d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 1178d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1179d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1180d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 118106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 118206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 118306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 118406f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 118506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 118606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1187fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 118806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 11897fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 11907fac2e18339f765320d759e8d4c090f92431959eRomain Guy 1191d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1192db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 1193db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 1194db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1195db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 1196db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1197db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1198db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1199db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 1200db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 1201db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1202db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1203db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 12041e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 12051e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 12061e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12071e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 12081e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 12091e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 12101e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12111e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 12121e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 12131e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 12141e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 12151e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 12161e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 12171e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 12181e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12191e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 12206926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 12216926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 12226926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 12230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 12242542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 12250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 12260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 12270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12282542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 12292542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 12300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 12310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 12320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 12330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 12350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 12360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 12370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 12390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 12400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 12410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 1242759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy x, y, r, g, b, a, mode, transforms, applyFilters, 124303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 12440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 12450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 12470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 12480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 124903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy setupTextureAlpha8(texture, width, height, textureUnit, x, y, r, g, b, a, mode, 125003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy transforms, applyFilters, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 1251759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1252759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1253759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 1254759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 1255759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters, 125603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy GLvoid* vertices, GLvoid* texCoords, GLuint vbo) { 12570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 12580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 12590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 12600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 1261707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setAlpha8Color(r, g, b, a); 12620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 12640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 1265746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 12660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 12670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1268746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 12690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 12700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 12710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1272a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 1273a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(true, mode, description); 1274a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 12750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 1276fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 12770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1278746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bindTexture(texture); 1279fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 12800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1281fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 12820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 12830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 128403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (texCoords) { 128503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy // Setup attributes 128603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 128703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 128803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 128903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 129003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 129103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 129203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, vertices); 129303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 129403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 12950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 12970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 12980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 12990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 13000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 13010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 13020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 13048aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 13055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (width > 0 && height > 0) { 13065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(x, y, x + width, y + height, *mSnapshot->transform); 13075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 13085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 1309707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1310707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 1311707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 13120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 13140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 13150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 13160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 1317fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 13180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1320fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 13210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1325f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy// Same values used by Skia 13260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 13270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 13280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 13290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 13310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 13320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 13330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 13340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 13350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 13360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 13370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 13380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 13390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 13420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 13430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 13440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 13450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 13460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 13470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 13480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 13490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 13500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 13510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 1354e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float textSize = paint->getTextSize(); 1355e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float strokeWidth = textSize * kStdUnderline_Thickness; 13560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1357e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float left = x - offsetX; 13580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 1359e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1360e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const int pointsCount = 4 * (flags & SkPaint::kStrikeThruText_Flag ? 2 : 1); 1361e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy float points[pointsCount]; 1362e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy int currentPoint = 0; 13630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 13650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 1366e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1367e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1368e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1369e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 13700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 13730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 1374e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1375e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1376e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1377e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 13780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 1379e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1380e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy SkPaint linesPaint(*paint); 1381e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy linesPaint.setStrokeWidth(strokeWidth); 1382e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1383e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy drawLines(&points[0], pointsCount, &linesPaint); 13840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1388026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 13891c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 1390746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 13918694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1392d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 139306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1394d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 1395d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1396d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1397d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 1398026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 1399d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 1400c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 1401c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 1402c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 1403c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1404c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy setupColorRect(left, top, right, bottom, r, g, b, a, mode, ignoreTransform); 1405c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1406c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy // Draw the mesh 1407c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1408c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy} 1409c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1410c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guyvoid OpenGLRenderer::setupColorRect(float left, float top, float right, float bottom, 1411c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy float r, float g, float b, float a, SkXfermode::Mode mode, bool ignoreTransform) { 141206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 14139d5316e3f56d138504565ff311145ac01621dff4Romain Guy 141406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 1415889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1416707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(r, g, b, a); 1417707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy 141806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1419746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 1420c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 1421db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1422746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1423db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1424c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 14251c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy // Setup the blending mode 1426c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy chooseBlending(a < 1.0f || (mShader && mShader->blend()), mode, description); 1427a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 142806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 1429fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1430c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 143106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 143203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(); 1433fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 143403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, 0); 1435c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 143606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 1437889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 1438889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 143906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 14408aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 14415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1442889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 144306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 1444fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 14455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(left, top, right, bottom); 1446889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 1447707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 1448d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 144906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 145006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1451fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 1452d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1453db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1454fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1455db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1456d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 1457d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 145882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 14598164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture, SkPaint* paint) { 146082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 146182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 146282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 146382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 14648164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 14658164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy 14666820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, 146703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy texture->blend, (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, 14686820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 146985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 147085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 1471bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 1472a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 1473a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 147403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount); 1475f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 1476f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 1477f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 1478a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 14796820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 14805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool swapSrcDst, bool ignoreTransform, GLuint vbo, bool ignoreScale, bool dirty) { 1481746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 14828694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1483889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1484889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 1485707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 1486db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1487746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1488db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1489889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 1490bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 14915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!ignoreScale) { 14925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 14935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1494bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1495f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy chooseBlending(blend || alpha < 1.0f, mode, description, swapSrcDst); 1496a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1497fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1498f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (!ignoreTransform) { 1499f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 15005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1501f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } else { 15025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 identity; 15035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 15045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom); 1505f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 1506bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1507889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 15088164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bindTexture(texture); 1509fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 1510c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 1511a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 1512707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1513707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 1514707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 1515bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1516889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 1517fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 1518889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 151903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 152003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 152103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 152203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 152303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 152403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 1525fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1526ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 1527889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 1528bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1529db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 1530db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1531fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1532db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1533db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 15346820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1535889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 153682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 153782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1538a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 1539f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy ProgramDescription& description, bool swapSrcDst) { 154082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 154182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 1542a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 1543a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 1544a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 1545a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 154682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1547f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 1548f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 154982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1550a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 1551a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 1552a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 1553a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 1554a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1555a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1556a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 1557a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 1558a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 1559746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mCaches.extensions.hasFramebufferFetch()) { 1560a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 1561f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy description.swapSrcDst = swapSrcDst; 1562a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1563a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1564a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 1565a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 1566a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1567a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 156882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1569fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 157082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 157182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1572fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 1573bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 1574bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1575889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 1576d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 1577fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 1578d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 1579fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 15806926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 1581260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 15826926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 1583260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 1584260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 1585026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 1586ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 158782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 158882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 158982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 159082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 15918ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 15928ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 15935c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::getAlphaAndMode(SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 15948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 1595746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1596a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 1597a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1598a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1599a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 1600a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1601a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1602a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 16038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 16048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 16058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 16068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 16078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 16088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 16098ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 16108ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 16118ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 16128ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 16138ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 16148ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 16158ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1616026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1617026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1618a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 1619a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode == NULL) { 1620a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return SkXfermode::kSrcOver_Mode; 1621a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1622a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return mode->fMode; 1623a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 1624a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1625746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setTextureWrapModes(Texture* texture, GLenum wrapS, GLenum wrapT) { 16268164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bool bound = false; 16278164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapS != texture->wrapS) { 16288164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 16298164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bound = true; 16308164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 16318164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapS = wrapS; 16328164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 16338164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapT != texture->wrapT) { 16343e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy if (!bound) { 16353e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 16363e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy } 16378164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 16388164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapT = wrapT; 16398164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 1640a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1641a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 16429d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1643e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1644