OpenGLRenderer.cpp revision a957eea78557cb47a91d44d9e6ee641c58cf1c07
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" 320fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy#include "DisplayListRenderer.h" 33a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy#include "Vector.h" 34e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 35e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 369d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 379d5316e3f56d138504565ff311145ac01621dff4Romain Guy 389d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 399d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 409d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 419d5316e3f56d138504565ff311145ac01621dff4Romain Guy 42759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define RAD_TO_DEG (180.0f / 3.14159265f) 43759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define MIN_ANGLE 0.001f 44759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 45dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy// TODO: This should be set in properties 46dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy#define ALPHA_THRESHOLD (0x7f / PANEL_BIT_DEPTH) 47dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 489d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 499d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 509d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 519d5316e3f56d138504565ff311145ac01621dff4Romain Guy 52889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 53889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 54889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 55889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 56889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 57889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 58889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 59889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 60889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 61026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 62026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 63026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 64026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 68026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 69026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 70026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 71026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 77e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 7887a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// This array contains the swapped version of each SkXfermode. For instance 7987a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// this array's SrcOver blending mode is actually DstOver. You can refer to 8087a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// createLayer() for more information on the purpose of this array. 81f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guystatic const Blender gBlendsSwap[] = { 82f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 83f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE }, 84f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDst_Mode, GL_ONE, GL_ZERO }, 85f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 86f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 87f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 88f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO }, 89f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 90f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 91f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 92f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 93f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 94f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy}; 95f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 96889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 9706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 9806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 9906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 100d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 101d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 103f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 104f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 105f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 106fb8b763f762ae21923c58d64caa729b012f40e05Romain GuyOpenGLRenderer::OpenGLRenderer(): mCaches(Caches::getInstance()) { 10706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 108db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1091e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 110026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 111ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 112ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 113ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 114e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 115e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 11685bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 11729d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // The context has already been destroyed at this point, do not call 11829d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // GL APIs. All GL state should be kept in Caches.h 119e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 120e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 121f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 122f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 123f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 124f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 12585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 12608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 127260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 128bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 129bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 130bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 131eb99356a0548684a501766e6a524529ab93304c8Romain Guy 132eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->height = height; 133eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->viewport.set(0, 0, width, height); 134746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 135746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 136e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 137e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 1386b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guyvoid OpenGLRenderer::prepare(bool opaque) { 139fe48f65922d4a3cc4aefe058cee5acec51504a20Romain Guy mCaches.clearGarbage(); 140fe48f65922d4a3cc4aefe058cee5acec51504a20Romain Guy 1418aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1428aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 1438fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 144f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 145fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 146fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 147d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 148bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1496b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy if (!opaque) { 150746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glDisable(GL_SCISSOR_TEST); 1516b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 1526b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClear(GL_COLOR_BUFFER_BIT); 1536b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy } 154bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1550d200833fdc53f9796698f97c18cefc4a1b82df2Chet Haase glEnable(GL_SCISSOR_TEST); 1560d200833fdc53f9796698f97c18cefc4a1b82df2Chet Haase glScissor(0, 0, mWidth, mHeight); 157b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 158bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 159bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 160b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guyvoid OpenGLRenderer::finish() { 161b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#if DEBUG_OPENGL 162b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy GLenum status = GL_NO_ERROR; 163b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy while ((status = glGetError()) != GL_NO_ERROR) { 164b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy LOGD("GL error from OpenGLRenderer: 0x%x", status); 165b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 166b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#endif 167c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy#if DEBUG_MEMORY_USAGE 168c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy mCaches.dumpMemoryUsage(); 169e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy#else 170e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy if (mCaches.getDebugLevel() & kDebugMemory) { 171e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy mCaches.dumpMemoryUsage(); 172e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy } 173c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy#endif 174b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy} 175b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy 176da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 177da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 178da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 179da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 180da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 181da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 182da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 18350c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.unbindMeshBuffer(); 184da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 185da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 186da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 187eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 188da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 189da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 190746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 191da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 192f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glDisable(GL_DITHER); 193f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 194f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, 0); 19503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 19650c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy 19750c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.blend = true; 19850c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glEnable(GL_BLEND); 19950c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 20050c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendEquation(GL_FUNC_ADD); 201da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 202da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 203f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 204f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 205f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 206f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 2087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 210bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 211bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2128aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 214bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2162542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2172542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 221bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2228fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 223bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2248fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2252542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2267ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 227bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 228bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2298aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 2308aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 2318fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 232bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 233bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 234bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2357ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 236bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 237eb99356a0548684a501766e6a524529ab93304c8Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 238bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 239bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2407ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 241bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 242eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (restoreOrtho) { 243eb99356a0548684a501766e6a524529ab93304c8Romain Guy Rect& r = previous->viewport; 244eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 245eb99356a0548684a501766e6a524529ab93304c8Romain Guy mOrthoMatrix.load(current->orthoMatrix); 246eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 247eb99356a0548684a501766e6a524529ab93304c8Romain Guy 2488b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2498b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2508b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 2512542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 252746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 2538fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2542542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2555ec9924d24495822b589f1a17996655d66273b30Romain Guy if (restoreLayer) { 2565ec9924d24495822b589f1a17996655d66273b30Romain Guy composeLayer(current, previous); 2575ec9924d24495822b589f1a17996655d66273b30Romain Guy } 2585ec9924d24495822b589f1a17996655d66273b30Romain Guy 2592542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 260d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2615cbbce535744b89df5ecea95de21ee3733298260Romain Guy 262f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 263bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 264bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 265bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 266bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 2675c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* p, int flags) { 268eb99356a0548684a501766e6a524529ab93304c8Romain Guy const GLuint previousFbo = mSnapshot->fbo; 269eb99356a0548684a501766e6a524529ab93304c8Romain Guy const int count = saveSnapshot(flags); 270d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 271e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mSnapshot->invisible) { 272e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy int alpha = 255; 273e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy SkXfermode::Mode mode; 274e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 275e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (p) { 276e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy alpha = p->getAlpha(); 277e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 278e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 279e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!isMode) { 280e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // Assume SRC_OVER 281e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 282e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } 283e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } else { 284e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = getXfermode(p->getXfermode()); 285a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 286a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 287e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 290dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags, previousFbo); 291dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 294bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 295bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 296bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 297bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 2985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (alpha >= 255 - ALPHA_THRESHOLD) { 2998aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 3008b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 3018aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 3028aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 3038aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 3048b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 305d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 306bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3071c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 3081c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Layers are viewed by Skia are slightly different than layers in image editing 3091c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * programs (for instance.) When a layer is created, previously created layers 3101c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * and the frame buffer still receive every drawing command. For instance, if a 3111c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * layer is created and a shape intersecting the bounds of the layers and the 3121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * framebuffer is draw, the shape will be drawn on both (unless the layer was 3131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 3141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3151c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * A way to implement layers is to create an FBO for each layer, backed by an RGBA 3161c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * texture. Unfortunately, this is inefficient as it requires every primitive to 3171c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be drawn n + 1 times, where n is the number of active layers. In practice this 3181c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * means, for every primitive: 3191c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Switch active frame buffer 3201c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Change viewport, clip and projection matrix 3211c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Issue the drawing 3221c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3231c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Switching rendering target n + 1 times per drawn primitive is extremely costly. 3246b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * To avoid this, layers are implemented in a different way here, at least in the 3256b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * general case. FBOs are used, as an optimization, when the "clip to layer" flag 3266b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * is set. When this flag is set we can redirect all drawing operations into a 3276b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * single FBO. 3281c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3291c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * This implementation relies on the frame buffer being at least RGBA 8888. When 3301c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * a layer is created, only a texture is created, not an FBO. The content of the 3311c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer contained within the layer's bounds is copied into this texture 33287a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame 3331c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * buffer and drawing continues as normal. This technique therefore treats the 3341c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer as a scratch buffer for the layers. 3351c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3361c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To compose the layers back onto the frame buffer, each layer texture 3371c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * (containing the original frame buffer data) is drawn as a simple quad over 3381c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * the frame buffer. The trick is that the quad is set as the composition 3391c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * destination in the blending equation, and the frame buffer becomes the source 3401c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * of the composition. 3411c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3421c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Drawing layers with an alpha value requires an extra step before composition. 3431c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * An empty quad is drawn over the layer's region in the frame buffer. This quad 3441c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 3451c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * quad is used to multiply the colors in the frame buffer. This is achieved by 3461c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * changing the GL blend functions for the GL_FUNC_ADD blend equation to 3471c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * GL_ZERO, GL_SRC_ALPHA. 3481c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3491c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Because glCopyTexImage2D() can be slow, an alternative implementation might 3501c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be use to draw a single clipped layer. The implementation described above 3511c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is correct in every case. 35287a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * 35387a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * (1) The frame buffer is actually not cleared right away. To allow the GPU 35487a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * to potentially optimize series of calls to glCopyTexImage2D, the frame 35587a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * buffer is left untouched until the first drawing operation. Only when 35687a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * something actually gets drawn are the layers regions cleared. 3571c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 358d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 359eb99356a0548684a501766e6a524529ab93304c8Romain Guy float right, float bottom, int alpha, SkXfermode::Mode mode, 360eb99356a0548684a501766e6a524529ab93304c8Romain Guy int flags, GLuint previousFbo) { 361eb99356a0548684a501766e6a524529ab93304c8Romain Guy LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top); 362fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 363dda570201ac851dd85af3861f7e575721d3345daRomain Guy 364eb99356a0548684a501766e6a524529ab93304c8Romain Guy const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag; 365eb99356a0548684a501766e6a524529ab93304c8Romain Guy 366f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Window coordinates of the layer 3678aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 368ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (fboLayer) { 369ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // Clear the previous layer regions before we change the viewport 370ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clearLayerRegions(); 371ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 372eb99356a0548684a501766e6a524529ab93304c8Romain Guy mSnapshot->transform->mapRect(bounds); 373ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 374eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Layers only make sense if they are in the framebuffer's bounds 37558ae6db4ff8a9d0910e1183ee8be9a038a2712a6Romain Guy bounds.intersect(*snapshot->clipRect); 376ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 377ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // We cannot work with sub-pixels in this case 378ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy bounds.snapToPixelBoundaries(); 379ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy 380ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // When the layer is not an FBO, we may use glCopyTexImage so we 381ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // need to make sure the layer does not extend outside the bounds 382ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // of the framebuffer 383ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy bounds.intersect(snapshot->previous->viewport); 384eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 385bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy 386746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (bounds.isEmpty() || bounds.getWidth() > mCaches.maxTextureSize || 387746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bounds.getHeight() > mCaches.maxTextureSize) { 388dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy snapshot->invisible = true; 389dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } else { 390e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy snapshot->invisible = snapshot->invisible || (alpha <= ALPHA_THRESHOLD && fboLayer); 391dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 392dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 393dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy // Bail out if we won't draw in this snapshot 394dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (snapshot->invisible) { 395b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy return false; 396b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 397dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glActiveTexture(gTextureUnits[0]); 3998550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy Layer* layer = mCaches.layerCache.get(bounds.getWidth(), bounds.getHeight()); 400f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 401f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 402bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 403bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 404dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 405f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy layer->alpha = alpha; 4068aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 4078550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy layer->texCoords.set(0.0f, bounds.getHeight() / float(layer->height), 4088550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy bounds.getWidth() / float(layer->width), 0.0f); 409dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4108fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 4118fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 412dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 4131d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 414eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 4155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return createFboLayer(layer, bounds, snapshot, previousFbo); 416eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 417eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Copy the framebuffer into the layer 418eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 419eb99356a0548684a501766e6a524529ab93304c8Romain Guy 420ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (layer->empty) { 421ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bounds.left, 422ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, layer->width, layer->height, 0); 423ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy layer->empty = false; 424ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 425ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bounds.left, 426ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, bounds.getWidth(), bounds.getHeight()); 427ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } 428eb99356a0548684a501766e6a524529ab93304c8Romain Guy 429eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Enqueue the buffer coordinates to clear the corresponding region later 430eb99356a0548684a501766e6a524529ab93304c8Romain Guy mLayers.push(new Rect(bounds)); 431eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 432f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 433d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 434bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 435bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 4365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guybool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, sp<Snapshot> snapshot, 4375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLuint previousFbo) { 4385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->fbo = mCaches.fboCache.get(); 4395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 4415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->region = &snapshot->layer->region; 4425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagFboTarget; 4435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clip(bounds); 4465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->transform->mapRect(clip); 4475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(*snapshot->clipRect); 4485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(snapshot->previous->viewport); 4505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 inverse; 4525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.loadInverse(*mSnapshot->transform); 4535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.mapRect(clip); 4555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(bounds); 4575ec9924d24495822b589f1a17996655d66273b30Romain Guy clip.translate(-bounds.left, -bounds.top); 4585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagIsFboLayer; 4605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->fbo = layer->fbo; 4615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 4625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy //snapshot->resetClip(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom); 4645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->height = bounds.getHeight(); 4665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 4675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 4685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Bind texture to FBO 4705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 4715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 4725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Initialize the texture if needed 4745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->empty) { 4755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->empty = false; 4765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, layer->width, layer->height, 0, 4775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 4785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 4815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->texture, 0); 4825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 4845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); 4855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (status != GL_FRAMEBUFFER_COMPLETE) { 4865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy LOGE("Framebuffer incomplete (GL error code 0x%x)", status); 4875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 4895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDeleteTextures(1, &layer->texture); 4905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.fboCache.put(layer->fbo); 4915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy delete layer; 4935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return false; 4955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the FBO, expand the clear region by 1 to get nice bilinear filtering 4995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(clip.left - 1.0f, bounds.getHeight() - clip.bottom - 1.0f, 5005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.getWidth() + 2.0f, clip.getHeight() + 2.0f); 5015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 5025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 5035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 5055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Change the ortho projection 5075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 5085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 5095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return true; 5115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 5141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Read the documentation of createLayer() before doing anything in this method. 5151c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 5161d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 5171d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 5181d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 5191d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 5201d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5211d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool fboLayer = current->flags & Snapshot::kFlagIsFboLayer; 523eb99356a0548684a501766e6a524529ab93304c8Romain Guy 524eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 525eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Unbind current FBO and restore previous one 526eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 527eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 528eb99356a0548684a501766e6a524529ab93304c8Romain Guy 5291d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 5301d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 5311d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 532eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (!fboLayer && layer->alpha < 255) { 533f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawColorRect(rect.left, rect.top, rect.right, rect.bottom, 5341c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy layer->alpha << 24, SkXfermode::kDstIn_Mode, true); 5355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Required below, composeLayerRect() will divide by 255 5365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha = 255; 537f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 538f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 53903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 5408b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 541746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 5425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // When the layer is stored in an FBO, we can save a bit of fillrate by 5445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // drawing only the dirty region 545eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 5465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom, *previous->transform); 5475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRegion(layer, rect); 548eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 5495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom); 5505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect, true); 551eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 5521d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 553eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 554eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Detach the texture from the FBO 555eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, current->fbo); 556eb99356a0548684a501766e6a524529ab93304c8Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 557eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 558eb99356a0548684a501766e6a524529ab93304c8Romain Guy 559eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Put the FBO name back in the cache, if it doesn't fit, it will be destroyed 560eb99356a0548684a501766e6a524529ab93304c8Romain Guy mCaches.fboCache.put(current->fbo); 561eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 562eb99356a0548684a501766e6a524529ab93304c8Romain Guy 563746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 564746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 565eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Failing to add the layer to the cache should happen only if the layer is too large 5668550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy if (!mCaches.layerCache.put(layer)) { 5671d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 5681d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 5691d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 5701d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5711d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 5721d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRect(Layer* layer, const Rect& rect, bool swap) { 5745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const Rect& texCoords = layer->texCoords; 5755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(texCoords.left, texCoords.top, texCoords.right, texCoords.bottom); 5765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureMesh(rect.left, rect.top, rect.right, rect.bottom, layer->texture, 5785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha / 255.0f, layer->mode, layer->blend, &mMeshVertices[0].position[0], 5795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy &mMeshVertices[0].texture[0], GL_TRIANGLE_STRIP, gMeshCount, swap, swap); 5805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 5825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) { 5855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 5865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->region.isRect()) { 5875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 5885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 5895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return; 5905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 5915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!layer->region.isEmpty()) { 5935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy size_t count; 5945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* rects = layer->region.getArray(&count); 5955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy setupDraw(); 5975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy ProgramDescription description; 5995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy description.hasTexture = true; 6005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float alpha = layer->alpha / 255.0f; 6025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 6035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy chooseBlending(layer->blend || layer->alpha < 255, layer->mode, description, false); 6045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy useProgram(mCaches.programCache.get(description)); 6065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Texture 6085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bindTexture(layer->texture); 6095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 6105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Always premultiplied 6125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (setColor) { 6135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 6145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mesh 6175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 6185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 6195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.loadIdentity(); 6215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 6225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texX = 1.0f / float(layer->width); 6245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texY = 1.0f / float(layer->height); 6255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex* mesh = mCaches.getRegionMesh(); 6275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLsizei numQuads = 0; 6285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 6305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].position[0]); 6315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 6325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].texture[0]); 6335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* r = &rects[i]; 6365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u1 = r->left * texX; 6385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v1 = (rect.getHeight() - r->top) * texY; 6395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u2 = r->right * texX; 6405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v2 = (rect.getHeight() - r->bottom) * texY; 6415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Reject quads outside of the clip 6435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->top, u1, v1); 6445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->top, u2, v1); 6455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->bottom, u1, v2); 6465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->bottom, u2, v2); 6475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads++; 6495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads >= REGION_MESH_QUAD_COUNT) { 6515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads = 0; 6535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mesh = mCaches.getRegionMesh(); 6545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads > 0) { 6585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 6625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 6635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 6655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t colors[] = { 6665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7fff0000, 0x7f00ff00, 6675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7f0000ff, 0x7fff00ff, 6685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy }; 6695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int offset = 0; 6715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int32_t top = rects[0].top; 6725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int i = 0; 6735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (top != rects[i].top) { 6765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy offset ^= 0x2; 6775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy top = rects[i].top; 6785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect r(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom); 6815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawColorRect(r.left, r.top, r.right, r.bottom, colors[offset + (i & 0x1)], 6825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy SkXfermode::kSrcOver_Mode); 6835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 6875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 6895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 6905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 6925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 6945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom, const mat4 transform) { 6955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 6965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 6975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 6985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy transform.mapRect(bounds); 6995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 7005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 7015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 7035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 7045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 7055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 7115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom) { 7125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 7135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 7145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 7155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 7165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 7175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 7195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 7205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 7215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 726746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setupDraw() { 727746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy clearLayerRegions(); 728746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mDirtyClip) { 729746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setScissorFromClip(); 730746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy } 731746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy} 732746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 7338694230ff25fa0a60e480d424843e56b718f0516Romain Guyvoid OpenGLRenderer::clearLayerRegions() { 734dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mLayers.size() == 0 || mSnapshot->invisible) return; 7358694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clipRect(*mSnapshot->clipRect); 7375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clipRect.snapToPixelBoundaries(); 7385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7398694230ff25fa0a60e480d424843e56b718f0516Romain Guy for (uint32_t i = 0; i < mLayers.size(); i++) { 7408694230ff25fa0a60e480d424843e56b718f0516Romain Guy Rect* bounds = mLayers.itemAt(i); 7415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (clipRect.intersects(*bounds)) { 7425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the framebuffer where the layer will draw 7435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(bounds->left, mSnapshot->height - bounds->bottom, 7445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds->getWidth(), bounds->getHeight()); 7455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 7465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 7475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Restore the clip 7495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 7505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7518694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7528694230ff25fa0a60e480d424843e56b718f0516Romain Guy delete bounds; 7538694230ff25fa0a60e480d424843e56b718f0516Romain Guy } 7548694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mLayers.clear(); 7568694230ff25fa0a60e480d424843e56b718f0516Romain Guy} 7578694230ff25fa0a60e480d424843e56b718f0516Romain Guy 758bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 759f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 760f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 761f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 762f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 7638aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 764f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 765f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 766f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 7678aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 768f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 769f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 770f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 7718aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 772f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 773f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 774f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 7758aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 776f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 777f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 77841030da16856c8869e1e51d4a0405432fa96614eRomain Guyconst float* OpenGLRenderer::getMatrix() const { 77999bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy if (mSnapshot->fbo != 0) { 78099bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mSnapshot->transform->data[0]; 78199bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy } 78299bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mIdentity.data[0]; 78341030da16856c8869e1e51d4a0405432fa96614eRomain Guy} 78441030da16856c8869e1e51d4a0405432fa96614eRomain Guy 785f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 7868aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 787f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 788f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 789f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 790e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy SkMatrix transform; 791e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->copyTo(transform); 792e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy transform.preConcat(*matrix); 793e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->load(transform); 794f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 795f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 796f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 797f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 798f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 799f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 800bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 801e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy Rect clip(*mSnapshot->clipRect); 802e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy clip.snapToPixelBoundaries(); 803eb99356a0548684a501766e6a524529ab93304c8Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 804746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 8059d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 8069d5316e3f56d138504565ff311145ac01621dff4Romain Guy 8079d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 808079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 809bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 810bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 811c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 812dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) { 813dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy return true; 814dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 815dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 8161d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 8178aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 818d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy r.snapToPixelBoundaries(); 819d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 820d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy Rect clipRect(*mSnapshot->clipRect); 821d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy clipRect.snapToPixelBoundaries(); 822d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 823d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy return !clipRect.intersects(r); 824c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 825c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 826079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 827079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 8287ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 829746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 8307ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 8318aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 832e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 833e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 834f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 835f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 836f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 837f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 8380fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guyvoid OpenGLRenderer::drawDisplayList(DisplayList* displayList) { 8390fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // All the usual checks and setup operations (quickReject, setupDraw, etc.) 8400fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // will be performed by the display list itself 8410fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy if (displayList) { 8420fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy displayList->replay(*this); 8430fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy } 8440fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy} 8450fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy 8465c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, SkPaint* paint) { 8476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 8486926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 8496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 8506926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 8516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 85461c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8558164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8569cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 85722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 85822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 8608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8625c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) { 863f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 864f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 865f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 866f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8676926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 8686926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8696926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8706926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 87161c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8728164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8739cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 87422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 87522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // This could be done in a cheaper way, all we need is pass the matrix 8775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // to the vertex shader. The save/restore is a bit overkill. 8785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy save(SkCanvas::kMatrix_SaveFlag); 8795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy concatMatrix(matrix); 8805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureRect(0.0f, 0.0f, bitmap->width(), bitmap->height(), texture, paint); 8815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy restore(); 882f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 883f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 8858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 8868ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 8875c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* paint) { 8886926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 8896926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8906926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8916926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 892746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 8938164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8949cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 89522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 8968164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 8978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 8998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 900c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 9018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 9028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 9038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 9048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 905c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 90603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 9078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 9088ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 90903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy int alpha; 91003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy SkXfermode::Mode mode; 91103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy getAlphaAndMode(paint, &alpha, &mode); 91203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 9136620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (mSnapshot->transform->isPureTranslate()) { 9146620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(dstLeft + mSnapshot->transform->getTranslateX() + 0.5f); 9156620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(dstTop + mSnapshot->transform->getTranslateY() + 0.5f); 9166620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 9176620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + (dstRight - dstLeft), y + (dstBottom - dstTop), 9186620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy texture->id, alpha / 255.0f, mode, texture->blend, 9196620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 9206620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount, false, true); 9216620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 9226620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(dstLeft, dstTop, dstRight, dstBottom, texture->id, alpha / 255.0f, 9236620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 9246620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 9256620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 9268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 928ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 929ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 9304aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int32_t* yDivs, 9314bb942083a0d4db746adf95349108dd8ef842e32Romain Guy const uint32_t* colors, uint32_t width, uint32_t height, int8_t numColors, 9325c13d89c1332fcc499379b9064b891187b75ca32Chet Haase float left, float top, float right, float bottom, SkPaint* paint) { 9336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 9346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 9356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 9366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 937746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 9388164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 9399cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 94022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 9418164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 942f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 943f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 944f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 945f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 946f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9472728f961614a385df1f056fc24803a9f65c90fabRomain Guy const Patch* mesh = mCaches.patchCache.get(bitmap->width(), bitmap->height(), 9484bb942083a0d4db746adf95349108dd8ef842e32Romain Guy right - left, bottom - top, xDivs, yDivs, colors, width, height, numColors); 949f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 950a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy if (mesh && mesh->verticesCount > 0) { 9516620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const bool pureTranslate = mSnapshot->transform->isPureTranslate(); 952a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#if RENDER_LAYERS_AS_REGIONS 9535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mark the current layer dirty where we are going to draw the patch 9545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && 9555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region && mesh->hasEmptyQuads) { 9565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const size_t count = mesh->quads.size(); 9575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 9588ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy const Rect& bounds = mesh->quads.itemAt(i); 9596620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 9606620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(bounds.left + 0.5f); 9616620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(bounds.top + 0.5f); 9628ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy dirtyLayer(x, y, x + bounds.getWidth(), y + bounds.getHeight(), 9636620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy *mSnapshot->transform); 9646620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 9656620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy dirtyLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, 9666620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy *mSnapshot->transform); 9676620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 9685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 9695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 970a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#endif 9715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 9726620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 9736620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(left + mSnapshot->transform->getTranslateX() + 0.5f); 9746620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(top + mSnapshot->transform->getTranslateY() + 0.5f); 9756620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 9766620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + right - left, y + bottom - top, texture->id, alpha / 255.0f, 9776620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 9786620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLES, mesh->verticesCount, false, true, mesh->meshBuffer, 9796620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy true, !mesh->hasEmptyQuads); 9806620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 9816620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, 9826620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 9836620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLES, mesh->verticesCount, false, false, mesh->meshBuffer, 9846620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy true, !mesh->hasEmptyQuads); 9856620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 986054dc1840941665e32036f9523df51720ad069c8Romain Guy } 987f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 988f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9895c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawLines(float* points, int count, SkPaint* paint) { 9907f78b0c3ae6222b39f6240524390de9764f21764Romain Guy // TODO: Should do quickReject for each line 991dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 992dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 993a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy const bool isAA = paint->isAntiAlias(); 994a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy const float strokeWidth = paint->getStrokeWidth() * 0.5f; 995a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // A stroke width of 0 has a special meaningin Skia: 996a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // it draws an unscaled 1px wide line 997a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy const bool isHairLine = paint->getStrokeWidth() == 0.0f; 998a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 9997f78b0c3ae6222b39f6240524390de9764f21764Romain Guy setupDraw(); 10007f78b0c3ae6222b39f6240524390de9764f21764Romain Guy 1001759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy int alpha; 1002759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode; 1003759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy getAlphaAndMode(paint, &alpha, &mode); 1004759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1005759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy uint32_t color = paint->getColor(); 1006759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat a = alpha / 255.0f; 1007759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 1008759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 1009759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 1010759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1011a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Used only with AA lines 1012a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy GLuint textureUnit = 0; 1013a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1014a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Describe the required shaders 1015a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy ProgramDescription description; 1016a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy const bool setColor = description.setColor(r, g, b, a); 1017a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1018a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy if (mShader) { 1019a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mShader->describe(description, mCaches.extensions); 1020a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } 1021a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy if (mColorFilter) { 1022a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mColorFilter->describe(description, mCaches.extensions); 1023c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 1024c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1025a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Setup the blending mode 1026a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy chooseBlending(a < 1.0f || (mShader && mShader->blend()), mode, description); 1027759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1028a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // We're not drawing with VBOs here 1029a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mCaches.unbindMeshBuffer(); 1030759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1031a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy int verticesCount = count >> 2; 1032a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy if (!isHairLine) { 1033a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // TODO: AA needs more vertices 1034a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy verticesCount *= 6; 1035a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } else { 1036a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // TODO: AA will be different 1037a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy verticesCount *= 2; 1038a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } 1039759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1040a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex lines[verticesCount]; 1041a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex* vertex = &lines[0]; 1042759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1043a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1044a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy gMeshStride, vertex); 1045759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1046a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mModelView.loadIdentity(); 1047a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1048a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Build and use the appropriate shader 1049a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy useProgram(mCaches.programCache.get(description)); 1050a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 1051a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1052a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy if (!mShader || (mShader && setColor)) { 1053a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 1054a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } 1055759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1056a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy if (mShader) { 1057a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 1058a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } 1059a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy if (mColorFilter) { 1060a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1061759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1062759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1063a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy if (!isHairLine) { 1064a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // TODO: Handle the AA case 1065a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy for (int i = 0; i < count; i += 4) { 1066a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // a = start point, b = end point 1067a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy vec2 a(points[i], points[i + 1]); 1068a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy vec2 b(points[i + 2], points[i + 3]); 1069a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1070a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Bias to snap to the same pixels as Skia 1071a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy a += 0.375; 1072a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy b += 0.375; 1073a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1074a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Find the normal to the line 1075a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy vec2 n = (b - a).copyNormalized() * strokeWidth; 1076a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy float x = n.x; 1077a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy n.x = -n.y; 1078a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy n.y = x; 1079a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1080a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Four corners of the rectangle defining a thick line 1081a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy vec2 p1 = a - n; 1082a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy vec2 p2 = a + n; 1083a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy vec2 p3 = b + n; 1084a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy vec2 p4 = b - n; 1085a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1086a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Draw the line as 2 triangles, could be optimized 1087a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // by using only 4 vertices and the correct indices 1088a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // Also we should probably used non textured vertices 1089a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // when line AA is disabled to save on bandwidth 1090a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, p1.x, p1.y, 0.0f, 0.0f); 1091a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, p2.x, p2.y, 0.0f, 0.0f); 1092a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, p3.x, p3.y, 0.0f, 0.0f); 1093a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, p1.x, p1.y, 0.0f, 0.0f); 1094a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, p3.x, p3.y, 0.0f, 0.0f); 1095a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, p4.x, p4.y, 0.0f, 0.0f); 1096a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1097a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // TODO: Mark the dirty regions when RENDER_LAYERS_AS_REGIONS is set 1098a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } 1099a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy 1100a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // GL_LINE does not give the result we want to match Skia 1101a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy glDrawArrays(GL_TRIANGLES, 0, verticesCount); 1102a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } else { 1103a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy // TODO: Handle the AA case 1104a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy for (int i = 0; i < count; i += 4) { 1105a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, points[i], points[i + 1], 0.0f, 0.0f); 1106a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy TextureVertex::set(vertex++, points[i + 2], points[i + 3], 0.0f, 0.0f); 1107a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy } 1108a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy glLineWidth(1.0f); 1109a957eea78557cb47a91d44d9e6ee641c58cf1c07Romain Guy glDrawArrays(GL_LINES, 0, verticesCount); 111029d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy } 1111759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1112759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 111385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 1114e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // No need to check against the clip, we fill the clip region 1115e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (mSnapshot->invisible) return; 1116e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 1117ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy Rect& clip(*mSnapshot->clipRect); 1118ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clip.snapToPixelBoundaries(); 11193d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 1120c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 11219d5316e3f56d138504565ff311145ac01621dff4Romain Guy 11225c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, SkPaint* p) { 11236926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 11246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 11256926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 11266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 1127026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 1128746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1129a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 1130a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1131a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1132a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 1133a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1134a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1135a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 1136026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1137026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1138026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 1139026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 1140026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 1141d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 1142026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 1143026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1144026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1145026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 1146c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 11479d5316e3f56d138504565ff311145ac01621dff4Romain Guy 1148e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 1149e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 1150f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 1151e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 1152e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1153dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1154e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1155f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy paint->setAntiAlias(true); 1156e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 1157a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 1158e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 1159e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 1160e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1161e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 1162e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1163e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 1164e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1165e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 1166e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1167e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 1168e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1169e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1170e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 11716620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy // TODO: Handle paint->getTextScaleX() 11723a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy const float oldX = x; 11733a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy const float oldY = y; 11746620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const bool pureTranslate = mSnapshot->transform->isPureTranslate(); 11756620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 11766620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy x = (int) floorf(x + mSnapshot->transform->getTranslateX() + 0.5f); 11776620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy y = (int) floorf(y + mSnapshot->transform->getTranslateY() + 0.5f); 11786620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 11796620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 1180694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 1181694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 1182694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 1183694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 11842542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 11852542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 11862542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 11872542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 11882542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 11892542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 1190b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 1191b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 1192fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 1193e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1194746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 11959d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 11961e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 11971e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 1198b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 1199fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 12001e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 12011e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 12020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12036620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy setupShadow(shadow, x, y, mode, a, pureTranslate); 12040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 12060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1207fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 12081e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 12091e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 121006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 1211db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 121206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 12136620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy // Pick the appropriate texture filtering 12146620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy bool linearFilter = mSnapshot->transform->changesBounds(); 12156620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate && !linearFilter) { 12166620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy linearFilter = fabs(y - (int) y) > 0.0f || fabs(x - (int) x) > 0.0f; 12176620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 12185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 12195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Dimensions are set to (0,0), the layer (if any) won't be dirtied 1220e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy setupTextureAlpha8(fontRenderer.getTexture(linearFilter), 0, 0, textureUnit, 12216620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy x, y, r, g, b, a, mode, false, true, NULL, NULL, 0, pureTranslate); 122206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 12236620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const Rect* clip = pureTranslate ? mSnapshot->clipRect : &mSnapshot->getLocalClip(); 12245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 12255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 12265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 12275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = (mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region; 12285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 12295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = false; 12305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 12319d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 123203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 12336620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (fontRenderer.renderText(paint, clip, text, 0, bytesCount, count, x, y, 12345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy hasLayer ? &bounds : NULL)) { 12355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 12365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (hasLayer) { 12376620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (!pureTranslate) { 12386620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mSnapshot->transform->mapRect(bounds); 12396620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 12405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 12415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 12425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 12435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 12445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 12455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 12465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 12475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1248694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1249694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 1250fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 1251a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 12523a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy drawTextDecorations(text, bytesCount, length, oldX, oldY, paint); 1253694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 1254694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 12557fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 1256dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1257dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 12587fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 12597fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 12607fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 1261fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 12629cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 126322158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 12647fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12658b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 12668b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 12678b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 12688b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 12698b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 12708b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 12718b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 12727fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 12737fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 12747fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 12757fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12767fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 12777fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 12787fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 12797fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 12807fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 12817fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 12830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1284746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 12858694230ff25fa0a60e480d424843e56b718f0516Romain Guy 12860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 12870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1288fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 12897fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 12907fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12916926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 1292d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 1293d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1294d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1295d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 129606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 129706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 129806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 129906f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 130006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 130106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1302fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 130306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 13047fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 13057fac2e18339f765320d759e8d4c090f92431959eRomain Guy 1306d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1307db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 1308db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 1309db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1310db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 1311db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1312db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1313db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1314db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 1315db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 1316db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1317db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1318db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 13191e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 13201e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 13211e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 13221e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 13231e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 13241e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 13251e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 13261e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 13271e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 13281e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 13291e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 13301e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 13311e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 13321e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 13331e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 13341e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 13356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 13366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 13376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 13380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 13396620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy SkXfermode::Mode mode, float alpha, bool ignoreTransforms) { 13400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 13410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 13420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13432542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 13442542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 13450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 13460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 13470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 13480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 13506620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 13516620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy sx, sy, r, g, b, a, mode, true, false, 13526620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 0, ignoreTransforms); 13530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 13560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 13570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 13580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 1359759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy x, y, r, g, b, a, mode, transforms, applyFilters, 136003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 13610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 13640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 13650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 136603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy setupTextureAlpha8(texture, width, height, textureUnit, x, y, r, g, b, a, mode, 136703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy transforms, applyFilters, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 1368759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1369759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1370759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 1371759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 1372759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters, 13736620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GLvoid* vertices, GLvoid* texCoords, GLuint vbo, bool ignoreTransform) { 13740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 13750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 13760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 13770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 1378707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setAlpha8Color(r, g, b, a); 13790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 13810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 1382746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 13830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1385746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 13860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1389a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 1390a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(true, mode, description); 1391a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 13920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 1393fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 13940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1395746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bindTexture(texture); 1396fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 13970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1398fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 13990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 14000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 140103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (texCoords) { 140203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy // Setup attributes 140303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 140403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 140503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 140603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 140703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 140803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 140903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, vertices); 141003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 141103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 14120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 14140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 14150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 14160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 14170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 14180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 14190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 14216620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mat4 t; 14226620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (!ignoreTransform) { 14236620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy t.load(*mSnapshot->transform); 14246620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 14256620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 14266620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, t); 14275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (width > 0 && height > 0) { 14286620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy dirtyLayer(x, y, x + width, y + height, t); 14295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 14305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 1431707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1432707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 1433707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 14340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 14360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 14370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 14380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 14396620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (ignoreTransform) { 14406620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mModelView.loadInverse(*mSnapshot->transform); 14416620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 1442fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 14430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1445fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 14460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 14490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1450f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy// Same values used by Skia 14510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 14520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 14530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 14540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 14560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 14570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 14580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 14590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 14600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 14610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 14620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 14630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 14640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 14670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 14680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 14690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 14700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 14710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 14720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 14730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 14740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 14750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 14760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 1479e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float textSize = paint->getTextSize(); 1480e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float strokeWidth = textSize * kStdUnderline_Thickness; 14810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1482e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float left = x - offsetX; 14830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 1484e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1485e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const int pointsCount = 4 * (flags & SkPaint::kStrikeThruText_Flag ? 2 : 1); 1486e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy float points[pointsCount]; 1487e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy int currentPoint = 0; 14880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 14900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 1491e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1492e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1493e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1494e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 14950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 14980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 1499e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1500e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1501e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1502e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 15030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 1504e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1505e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy SkPaint linesPaint(*paint); 1506e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy linesPaint.setStrokeWidth(strokeWidth); 1507e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1508e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy drawLines(&points[0], pointsCount, &linesPaint); 15090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 15100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 15110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 15120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1513026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 15141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 1515746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 15168694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1517d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 151806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1519d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 1520d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1521d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1522d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 1523026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 1524d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 1525c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 1526c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 1527c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 1528c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1529c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy setupColorRect(left, top, right, bottom, r, g, b, a, mode, ignoreTransform); 1530c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1531c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy // Draw the mesh 1532c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1533c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy} 1534c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1535c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guyvoid OpenGLRenderer::setupColorRect(float left, float top, float right, float bottom, 15367f78b0c3ae6222b39f6240524390de9764f21764Romain Guy float r, float g, float b, float a, SkXfermode::Mode mode, 15377f78b0c3ae6222b39f6240524390de9764f21764Romain Guy bool ignoreTransform, bool ignoreMatrix) { 153806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 15399d5316e3f56d138504565ff311145ac01621dff4Romain Guy 154006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 1541889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1542707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(r, g, b, a); 1543707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy 154406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1545746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 1546c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 1547db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1548746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1549db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1550c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 15511c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy // Setup the blending mode 1552c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy chooseBlending(a < 1.0f || (mShader && mShader->blend()), mode, description); 1553a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 155406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 1555fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1556c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 155706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 155803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(); 1559fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 156003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, 0); 1561c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 15627f78b0c3ae6222b39f6240524390de9764f21764Romain Guy if (!ignoreMatrix) { 15637f78b0c3ae6222b39f6240524390de9764f21764Romain Guy // Setup uniforms 15647f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mModelView.loadTranslate(left, top, 0.0f); 15657f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 15667f78b0c3ae6222b39f6240524390de9764f21764Romain Guy if (!ignoreTransform) { 15677f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 15687f78b0c3ae6222b39f6240524390de9764f21764Romain Guy dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 15697f78b0c3ae6222b39f6240524390de9764f21764Romain Guy } else { 15707f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mat4 identity; 15717f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 15727f78b0c3ae6222b39f6240524390de9764f21764Romain Guy dirtyLayer(left, top, right, bottom); 15737f78b0c3ae6222b39f6240524390de9764f21764Romain Guy } 1574889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 157501d065795794fa56be660d6346e4830eb7e90a41Romain Guy if (!mShader || (mShader && setColor)) { 157601d065795794fa56be660d6346e4830eb7e90a41Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 157701d065795794fa56be660d6346e4830eb7e90a41Romain Guy } 1578d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 157906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 158006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 15816620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (ignoreMatrix) { 15826620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mModelView.loadIdentity(); 15836620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else if (ignoreTransform) { 15846620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mModelView.loadInverse(*mSnapshot->transform); 15856620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 1586fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 1587d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1588db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1589fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1590db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1591d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 1592d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 159382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 15948164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture, SkPaint* paint) { 159582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 159682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 159782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 159882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 15998164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 16008164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy 16016620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (mSnapshot->transform->isPureTranslate()) { 16026620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(left + mSnapshot->transform->getTranslateX() + 0.5f); 16036620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(top + mSnapshot->transform->getTranslateY() + 0.5f); 16046620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 16056620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + texture->width, y + texture->height, texture->id, 16066620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy alpha / 255.0f, mode, texture->blend, (GLvoid*) NULL, 16076620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount, false, true); 16086620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 16096620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, 16106620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy texture->blend, (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, 16116620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 16126620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 161385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 161485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 1615bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 1616a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 1617a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 161803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount); 1619f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 1620f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 1621f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 1622a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 16236820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 16245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool swapSrcDst, bool ignoreTransform, GLuint vbo, bool ignoreScale, bool dirty) { 1625746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 16268694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1627889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1628889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 1629707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 1630db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1631746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1632db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1633889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 1634bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 16355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!ignoreScale) { 16365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 16375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1638bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1639f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy chooseBlending(blend || alpha < 1.0f, mode, description, swapSrcDst); 1640a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1641fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1642f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (!ignoreTransform) { 1643f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 16445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1645f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } else { 16465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 identity; 16475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 16485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom); 1649f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 1650bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1651889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 16528164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bindTexture(texture); 1653fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 1654c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 1655a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 1656707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1657707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 1658707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 1659bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1660889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 1661fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 1662889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 166303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 166403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 166503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 166603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 166703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 166803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 1669fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1670ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 1671889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 1672bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1673db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 1674db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1675fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1676db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1677db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 16786820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1679889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 168082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 168182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1682a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 1683f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy ProgramDescription& description, bool swapSrcDst) { 168482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 168582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 1686a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 1687a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 1688a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 1689a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 169082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1691f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 1692f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 169382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1694a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 1695a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 1696a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 1697a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 1698a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1699a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1700a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 1701a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 1702a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 1703746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mCaches.extensions.hasFramebufferFetch()) { 1704a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 1705f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy description.swapSrcDst = swapSrcDst; 1706a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1707a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1708a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 1709a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 1710a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1711a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 171282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1713fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 171482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 171582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1716fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 1717bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 1718bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1719889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 1720d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 1721fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 1722d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 1723fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 17246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 1725260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 17266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 1727260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 1728260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 1729026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 1730ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 173182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 173282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 173382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 173482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 17358ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 17368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 17375c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::getAlphaAndMode(SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 17388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 1739746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1740a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 1741a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1742a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1743a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 1744a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1745a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1746a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 17478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 17488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 17498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 17508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 17518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 17528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 17538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 17548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 17558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 17568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 17578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 17588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 17598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1760026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1761026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1762a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 1763a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode == NULL) { 1764a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return SkXfermode::kSrcOver_Mode; 1765a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1766a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return mode->fMode; 1767a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 1768a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1769746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setTextureWrapModes(Texture* texture, GLenum wrapS, GLenum wrapT) { 17708164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bool bound = false; 17718164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapS != texture->wrapS) { 17728164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 17738164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bound = true; 17748164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 17758164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapS = wrapS; 17768164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 17778164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapT != texture->wrapT) { 17783e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy if (!bound) { 17793e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 17803e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy } 17818164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 17828164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapT = wrapT; 17838164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 1784a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1785a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 17869d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1787e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1788