OpenGLRenderer.cpp revision 8ab4079ca27e36e5c584495bcd71b573598ac021
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" 33e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 34e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 359d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy 379d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 389d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 399d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 409d5316e3f56d138504565ff311145ac01621dff4Romain Guy 41759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define RAD_TO_DEG (180.0f / 3.14159265f) 42759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define MIN_ANGLE 0.001f 43759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 44dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy// TODO: This should be set in properties 45dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy#define ALPHA_THRESHOLD (0x7f / PANEL_BIT_DEPTH) 46dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 479d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 489d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 499d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 509d5316e3f56d138504565ff311145ac01621dff4Romain Guy 51889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 52889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 53889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 54889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 55889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 56889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 57889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 58889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 59889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 60026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 61026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 62026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 63026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 64026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 65026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 68026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 69026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 70026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 71026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 76e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 7787a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// This array contains the swapped version of each SkXfermode. For instance 7887a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// this array's SrcOver blending mode is actually DstOver. You can refer to 7987a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// createLayer() for more information on the purpose of this array. 80f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guystatic const Blender gBlendsSwap[] = { 81f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 82f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE }, 83f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDst_Mode, GL_ONE, GL_ZERO }, 84f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 85f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 86f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 87f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO }, 88f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 89f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 90f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 91f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 92f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 93f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy}; 94f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 95889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 9606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 9706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 9806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 99d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 100d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 101f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 102f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 103f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 104f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 105fb8b763f762ae21923c58d64caa729b012f40e05Romain GuyOpenGLRenderer::OpenGLRenderer(): mCaches(Caches::getInstance()) { 10606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 107db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1081e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 109026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 110ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 111ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 112ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 113e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 114e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 11585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 11629d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // The context has already been destroyed at this point, do not call 11729d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // GL APIs. All GL state should be kept in Caches.h 118e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 119e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 120f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 121f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 122f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 123f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 12485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 12508ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 126260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 127bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 128bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 129bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 130eb99356a0548684a501766e6a524529ab93304c8Romain Guy 131eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->height = height; 132eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->viewport.set(0, 0, width, height); 133746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 134746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 135e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 136e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 1376b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guyvoid OpenGLRenderer::prepare(bool opaque) { 138fe48f65922d4a3cc4aefe058cee5acec51504a20Romain Guy mCaches.clearGarbage(); 139fe48f65922d4a3cc4aefe058cee5acec51504a20Romain Guy 1408aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1418aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 1428fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 143f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 144fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 145fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 146d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 147bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1486b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy if (!opaque) { 149746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glDisable(GL_SCISSOR_TEST); 1506b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 1516b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClear(GL_COLOR_BUFFER_BIT); 1526b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy } 153bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1540d200833fdc53f9796698f97c18cefc4a1b82df2Chet Haase glEnable(GL_SCISSOR_TEST); 1550d200833fdc53f9796698f97c18cefc4a1b82df2Chet Haase glScissor(0, 0, mWidth, mHeight); 156b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 157bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 158bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 159b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guyvoid OpenGLRenderer::finish() { 160b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#if DEBUG_OPENGL 161b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy GLenum status = GL_NO_ERROR; 162b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy while ((status = glGetError()) != GL_NO_ERROR) { 163b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy LOGD("GL error from OpenGLRenderer: 0x%x", status); 164b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 165b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#endif 166c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy#if DEBUG_MEMORY_USAGE 167c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy mCaches.dumpMemoryUsage(); 168e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy#else 169e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy if (mCaches.getDebugLevel() & kDebugMemory) { 170e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy mCaches.dumpMemoryUsage(); 171e190aa69756aecfaffabdd4c6d32cb6b3220d842Romain Guy } 172c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy#endif 173b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy} 174b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy 175da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 176da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 177da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 178da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 179da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 180da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 181da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 18250c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.unbindMeshBuffer(); 183da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 184da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 185da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 186eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 187da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 188da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 189746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 190da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 191f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glDisable(GL_DITHER); 192f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 193f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, 0); 19403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 19550c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy 19650c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.blend = true; 19750c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glEnable(GL_BLEND); 19850c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 19950c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendEquation(GL_FUNC_ADD); 200da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 201da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 202f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 203f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 204f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 205f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 206bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 2077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 208bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 210bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2118aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 212bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 214bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2152542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2162542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 218bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2218fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 222bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2238fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2242542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2257ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 226bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 227bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2288aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 2298aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 2308fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 231bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 232bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 233bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2347ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 235bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 236eb99356a0548684a501766e6a524529ab93304c8Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 237bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 238bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2397ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 240bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 241eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (restoreOrtho) { 242eb99356a0548684a501766e6a524529ab93304c8Romain Guy Rect& r = previous->viewport; 243eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 244eb99356a0548684a501766e6a524529ab93304c8Romain Guy mOrthoMatrix.load(current->orthoMatrix); 245eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 246eb99356a0548684a501766e6a524529ab93304c8Romain Guy 2478b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2488b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2498b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 2502542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 251746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 2528fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2532542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2545ec9924d24495822b589f1a17996655d66273b30Romain Guy if (restoreLayer) { 2555ec9924d24495822b589f1a17996655d66273b30Romain Guy composeLayer(current, previous); 2565ec9924d24495822b589f1a17996655d66273b30Romain Guy } 2575ec9924d24495822b589f1a17996655d66273b30Romain Guy 2582542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 259d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2605cbbce535744b89df5ecea95de21ee3733298260Romain Guy 261f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 262bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 263bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 264bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 265bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 2665c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* p, int flags) { 267eb99356a0548684a501766e6a524529ab93304c8Romain Guy const GLuint previousFbo = mSnapshot->fbo; 268eb99356a0548684a501766e6a524529ab93304c8Romain Guy const int count = saveSnapshot(flags); 269d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 270e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mSnapshot->invisible) { 271e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy int alpha = 255; 272e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy SkXfermode::Mode mode; 273e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 274e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (p) { 275e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy alpha = p->getAlpha(); 276e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 277e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 278e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!isMode) { 279e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // Assume SRC_OVER 280e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 281e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } 282e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } else { 283e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = getXfermode(p->getXfermode()); 284a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 285a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 286e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 287d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 288d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 289dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags, previousFbo); 290dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 291d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 293bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 294bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 295bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 296bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 2975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (alpha >= 255 - ALPHA_THRESHOLD) { 2988aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 2998b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 3008aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 3018aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 3028aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 3038b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 304d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 305bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3061c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 3071c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Layers are viewed by Skia are slightly different than layers in image editing 3081c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * programs (for instance.) When a layer is created, previously created layers 3091c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * and the frame buffer still receive every drawing command. For instance, if a 3101c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * layer is created and a shape intersecting the bounds of the layers and the 3111c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * framebuffer is draw, the shape will be drawn on both (unless the layer was 3121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 3131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * A way to implement layers is to create an FBO for each layer, backed by an RGBA 3151c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * texture. Unfortunately, this is inefficient as it requires every primitive to 3161c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be drawn n + 1 times, where n is the number of active layers. In practice this 3171c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * means, for every primitive: 3181c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Switch active frame buffer 3191c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Change viewport, clip and projection matrix 3201c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Issue the drawing 3211c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3221c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Switching rendering target n + 1 times per drawn primitive is extremely costly. 3236b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * To avoid this, layers are implemented in a different way here, at least in the 3246b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * general case. FBOs are used, as an optimization, when the "clip to layer" flag 3256b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * is set. When this flag is set we can redirect all drawing operations into a 3266b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * single FBO. 3271c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3281c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * This implementation relies on the frame buffer being at least RGBA 8888. When 3291c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * a layer is created, only a texture is created, not an FBO. The content of the 3301c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer contained within the layer's bounds is copied into this texture 33187a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame 3321c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * buffer and drawing continues as normal. This technique therefore treats the 3331c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer as a scratch buffer for the layers. 3341c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3351c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To compose the layers back onto the frame buffer, each layer texture 3361c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * (containing the original frame buffer data) is drawn as a simple quad over 3371c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * the frame buffer. The trick is that the quad is set as the composition 3381c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * destination in the blending equation, and the frame buffer becomes the source 3391c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * of the composition. 3401c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3411c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Drawing layers with an alpha value requires an extra step before composition. 3421c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * An empty quad is drawn over the layer's region in the frame buffer. This quad 3431c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 3441c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * quad is used to multiply the colors in the frame buffer. This is achieved by 3451c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * changing the GL blend functions for the GL_FUNC_ADD blend equation to 3461c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * GL_ZERO, GL_SRC_ALPHA. 3471c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3481c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Because glCopyTexImage2D() can be slow, an alternative implementation might 3491c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be use to draw a single clipped layer. The implementation described above 3501c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is correct in every case. 35187a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * 35287a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * (1) The frame buffer is actually not cleared right away. To allow the GPU 35387a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * to potentially optimize series of calls to glCopyTexImage2D, the frame 35487a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * buffer is left untouched until the first drawing operation. Only when 35587a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * something actually gets drawn are the layers regions cleared. 3561c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 357d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 358eb99356a0548684a501766e6a524529ab93304c8Romain Guy float right, float bottom, int alpha, SkXfermode::Mode mode, 359eb99356a0548684a501766e6a524529ab93304c8Romain Guy int flags, GLuint previousFbo) { 360eb99356a0548684a501766e6a524529ab93304c8Romain Guy LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top); 361fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 362dda570201ac851dd85af3861f7e575721d3345daRomain Guy 363eb99356a0548684a501766e6a524529ab93304c8Romain Guy const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag; 364eb99356a0548684a501766e6a524529ab93304c8Romain Guy 365f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Window coordinates of the layer 3668aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 367ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (fboLayer) { 368ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // Clear the previous layer regions before we change the viewport 369ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clearLayerRegions(); 370ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 371eb99356a0548684a501766e6a524529ab93304c8Romain Guy mSnapshot->transform->mapRect(bounds); 372ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 373eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Layers only make sense if they are in the framebuffer's bounds 37458ae6db4ff8a9d0910e1183ee8be9a038a2712a6Romain Guy bounds.intersect(*snapshot->clipRect); 375ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 376ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // We cannot work with sub-pixels in this case 377ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy bounds.snapToPixelBoundaries(); 378ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy 379ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // When the layer is not an FBO, we may use glCopyTexImage so we 380ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // need to make sure the layer does not extend outside the bounds 381ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // of the framebuffer 382ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy bounds.intersect(snapshot->previous->viewport); 383eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 384bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy 385746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (bounds.isEmpty() || bounds.getWidth() > mCaches.maxTextureSize || 386746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bounds.getHeight() > mCaches.maxTextureSize) { 387dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy snapshot->invisible = true; 388dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } else { 389e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy snapshot->invisible = snapshot->invisible || (alpha <= ALPHA_THRESHOLD && fboLayer); 390dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 391dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 392dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy // Bail out if we won't draw in this snapshot 393dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (snapshot->invisible) { 394b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy return false; 395b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 396dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glActiveTexture(gTextureUnits[0]); 3988550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy Layer* layer = mCaches.layerCache.get(bounds.getWidth(), bounds.getHeight()); 399f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 400f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 401bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 402bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 403dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 404f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy layer->alpha = alpha; 4058aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 4068550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy layer->texCoords.set(0.0f, bounds.getHeight() / float(layer->height), 4078550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy bounds.getWidth() / float(layer->width), 0.0f); 408dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4098fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 4108fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 411dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 4121d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 413eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 4145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return createFboLayer(layer, bounds, snapshot, previousFbo); 415eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 416eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Copy the framebuffer into the layer 417eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 418eb99356a0548684a501766e6a524529ab93304c8Romain Guy 419ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (layer->empty) { 420ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bounds.left, 421ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, layer->width, layer->height, 0); 422ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy layer->empty = false; 423ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 424ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bounds.left, 425ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, bounds.getWidth(), bounds.getHeight()); 426ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } 427eb99356a0548684a501766e6a524529ab93304c8Romain Guy 428eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Enqueue the buffer coordinates to clear the corresponding region later 429eb99356a0548684a501766e6a524529ab93304c8Romain Guy mLayers.push(new Rect(bounds)); 430eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 431f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 432d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 433bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 434bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 4355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guybool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, sp<Snapshot> snapshot, 4365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLuint previousFbo) { 4375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->fbo = mCaches.fboCache.get(); 4385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 4405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->region = &snapshot->layer->region; 4415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagFboTarget; 4425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clip(bounds); 4455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->transform->mapRect(clip); 4465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(*snapshot->clipRect); 4475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(snapshot->previous->viewport); 4495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 inverse; 4515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.loadInverse(*mSnapshot->transform); 4525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.mapRect(clip); 4545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(bounds); 4565ec9924d24495822b589f1a17996655d66273b30Romain Guy clip.translate(-bounds.left, -bounds.top); 4575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagIsFboLayer; 4595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->fbo = layer->fbo; 4605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 4615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy //snapshot->resetClip(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom); 4635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->height = bounds.getHeight(); 4655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 4665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 4675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Bind texture to FBO 4695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 4705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 4715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Initialize the texture if needed 4735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->empty) { 4745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->empty = false; 4755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, layer->width, layer->height, 0, 4765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 4775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 4805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->texture, 0); 4815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 4835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); 4845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (status != GL_FRAMEBUFFER_COMPLETE) { 4855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy LOGE("Framebuffer incomplete (GL error code 0x%x)", status); 4865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 4885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDeleteTextures(1, &layer->texture); 4895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.fboCache.put(layer->fbo); 4905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy delete layer; 4925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return false; 4945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the FBO, expand the clear region by 1 to get nice bilinear filtering 4985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(clip.left - 1.0f, bounds.getHeight() - clip.bottom - 1.0f, 4995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.getWidth() + 2.0f, clip.getHeight() + 2.0f); 5005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 5015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 5025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 5045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Change the ortho projection 5065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 5075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 5085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return true; 5105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 5131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Read the documentation of createLayer() before doing anything in this method. 5141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 5151d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 5161d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 5171d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 5181d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 5191d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5201d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool fboLayer = current->flags & Snapshot::kFlagIsFboLayer; 522eb99356a0548684a501766e6a524529ab93304c8Romain Guy 523eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 524eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Unbind current FBO and restore previous one 525eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 526eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 527eb99356a0548684a501766e6a524529ab93304c8Romain Guy 5281d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 5291d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 5301d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 531eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (!fboLayer && layer->alpha < 255) { 532f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawColorRect(rect.left, rect.top, rect.right, rect.bottom, 5331c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy layer->alpha << 24, SkXfermode::kDstIn_Mode, true); 5345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Required below, composeLayerRect() will divide by 255 5355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha = 255; 536f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 537f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 53803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 5398b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 540746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 5415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // When the layer is stored in an FBO, we can save a bit of fillrate by 5435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // drawing only the dirty region 544eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 5455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom, *previous->transform); 5465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRegion(layer, rect); 547eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 5485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom); 5495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect, true); 550eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 5511d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 552eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 553eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Detach the texture from the FBO 554eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, current->fbo); 555eb99356a0548684a501766e6a524529ab93304c8Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 556eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 557eb99356a0548684a501766e6a524529ab93304c8Romain Guy 558eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Put the FBO name back in the cache, if it doesn't fit, it will be destroyed 559eb99356a0548684a501766e6a524529ab93304c8Romain Guy mCaches.fboCache.put(current->fbo); 560eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 561eb99356a0548684a501766e6a524529ab93304c8Romain Guy 562746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 563746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 564eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Failing to add the layer to the cache should happen only if the layer is too large 5658550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy if (!mCaches.layerCache.put(layer)) { 5661d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 5671d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 5681d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 5691d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5701d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 5711d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRect(Layer* layer, const Rect& rect, bool swap) { 5735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const Rect& texCoords = layer->texCoords; 5745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(texCoords.left, texCoords.top, texCoords.right, texCoords.bottom); 5755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureMesh(rect.left, rect.top, rect.right, rect.bottom, layer->texture, 5775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha / 255.0f, layer->mode, layer->blend, &mMeshVertices[0].position[0], 5785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy &mMeshVertices[0].texture[0], GL_TRIANGLE_STRIP, gMeshCount, swap, swap); 5795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 5815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) { 5845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 5855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->region.isRect()) { 5865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 5875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 5885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return; 5895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 5905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!layer->region.isEmpty()) { 5925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy size_t count; 5935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* rects = layer->region.getArray(&count); 5945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy setupDraw(); 5965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy ProgramDescription description; 5985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy description.hasTexture = true; 5995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float alpha = layer->alpha / 255.0f; 6015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 6025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy chooseBlending(layer->blend || layer->alpha < 255, layer->mode, description, false); 6035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy useProgram(mCaches.programCache.get(description)); 6055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Texture 6075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bindTexture(layer->texture); 6085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 6095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Always premultiplied 6115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (setColor) { 6125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 6135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mesh 6165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 6175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 6185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.loadIdentity(); 6205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 6215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texX = 1.0f / float(layer->width); 6235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texY = 1.0f / float(layer->height); 6245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex* mesh = mCaches.getRegionMesh(); 6265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLsizei numQuads = 0; 6275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 6295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].position[0]); 6305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 6315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].texture[0]); 6325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* r = &rects[i]; 6355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u1 = r->left * texX; 6375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v1 = (rect.getHeight() - r->top) * texY; 6385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u2 = r->right * texX; 6395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v2 = (rect.getHeight() - r->bottom) * texY; 6405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Reject quads outside of the clip 6425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->top, u1, v1); 6435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->top, u2, v1); 6445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->bottom, u1, v2); 6455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->bottom, u2, v2); 6465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads++; 6485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads >= REGION_MESH_QUAD_COUNT) { 6505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads = 0; 6525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mesh = mCaches.getRegionMesh(); 6535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads > 0) { 6575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 6615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 6625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 6645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t colors[] = { 6655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7fff0000, 0x7f00ff00, 6665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7f0000ff, 0x7fff00ff, 6675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy }; 6685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int offset = 0; 6705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int32_t top = rects[0].top; 6715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int i = 0; 6725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (top != rects[i].top) { 6755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy offset ^= 0x2; 6765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy top = rects[i].top; 6775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect r(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom); 6805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawColorRect(r.left, r.top, r.right, r.bottom, colors[offset + (i & 0x1)], 6815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy SkXfermode::kSrcOver_Mode); 6825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 6865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 6885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 6895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 6915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 6935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom, const mat4 transform) { 6945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 6955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 6965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 6975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy transform.mapRect(bounds); 6985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 6995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 7005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 7025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 7035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 7045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 7105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom) { 7115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 7125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 7135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 7145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 7155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 7165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 7185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 7195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 7205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 725746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setupDraw() { 726746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy clearLayerRegions(); 727746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mDirtyClip) { 728746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setScissorFromClip(); 729746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy } 730746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy} 731746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 7328694230ff25fa0a60e480d424843e56b718f0516Romain Guyvoid OpenGLRenderer::clearLayerRegions() { 733dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mLayers.size() == 0 || mSnapshot->invisible) return; 7348694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clipRect(*mSnapshot->clipRect); 7365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clipRect.snapToPixelBoundaries(); 7375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7388694230ff25fa0a60e480d424843e56b718f0516Romain Guy for (uint32_t i = 0; i < mLayers.size(); i++) { 7398694230ff25fa0a60e480d424843e56b718f0516Romain Guy Rect* bounds = mLayers.itemAt(i); 7405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (clipRect.intersects(*bounds)) { 7415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the framebuffer where the layer will draw 7425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(bounds->left, mSnapshot->height - bounds->bottom, 7435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds->getWidth(), bounds->getHeight()); 7445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 7455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 7465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Restore the clip 7485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 7495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7508694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7518694230ff25fa0a60e480d424843e56b718f0516Romain Guy delete bounds; 7528694230ff25fa0a60e480d424843e56b718f0516Romain Guy } 7538694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mLayers.clear(); 7558694230ff25fa0a60e480d424843e56b718f0516Romain Guy} 7568694230ff25fa0a60e480d424843e56b718f0516Romain Guy 757bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 758f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 759f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 760f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 761f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 7628aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 763f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 764f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 765f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 7668aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 767f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 768f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 769f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 7708aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 771f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 772f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 773f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 7748aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 775f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 776f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 77741030da16856c8869e1e51d4a0405432fa96614eRomain Guyconst float* OpenGLRenderer::getMatrix() const { 77899bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy if (mSnapshot->fbo != 0) { 77999bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mSnapshot->transform->data[0]; 78099bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy } 78199bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mIdentity.data[0]; 78241030da16856c8869e1e51d4a0405432fa96614eRomain Guy} 78341030da16856c8869e1e51d4a0405432fa96614eRomain Guy 784f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 7858aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 786f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 787f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 788f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 789e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy SkMatrix transform; 790e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->copyTo(transform); 791e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy transform.preConcat(*matrix); 792e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->load(transform); 793f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 794f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 795f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 796f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 797f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 798f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 799bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 800e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy Rect clip(*mSnapshot->clipRect); 801e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy clip.snapToPixelBoundaries(); 802eb99356a0548684a501766e6a524529ab93304c8Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 803746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 8049d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 8059d5316e3f56d138504565ff311145ac01621dff4Romain Guy 8069d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 807079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 808bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 809bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 810c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 811dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) { 812dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy return true; 813dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 814dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 8151d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 8168aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 817d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy r.snapToPixelBoundaries(); 818d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 819d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy Rect clipRect(*mSnapshot->clipRect); 820d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy clipRect.snapToPixelBoundaries(); 821d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 822d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy return !clipRect.intersects(r); 823c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 824c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 825079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 826079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 8277ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 828746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 8297ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 8308aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 831e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 832e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 833f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 834f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 835f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 836f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 8370fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guyvoid OpenGLRenderer::drawDisplayList(DisplayList* displayList) { 8380fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // All the usual checks and setup operations (quickReject, setupDraw, etc.) 8390fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // will be performed by the display list itself 8400fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy if (displayList) { 8410fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy displayList->replay(*this); 8420fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy } 8430fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy} 8440fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy 8455c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, SkPaint* paint) { 8466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 8476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 8486926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 8496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 8506926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 85361c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8548164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8559cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 85622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 85722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8586926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 8598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8615c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) { 862f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 863f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 864f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 865f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8666926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 8676926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8686926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8696926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 87061c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8718164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8729cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 87322158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 87422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // This could be done in a cheaper way, all we need is pass the matrix 8765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // to the vertex shader. The save/restore is a bit overkill. 8775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy save(SkCanvas::kMatrix_SaveFlag); 8785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy concatMatrix(matrix); 8795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureRect(0.0f, 0.0f, bitmap->width(), bitmap->height(), texture, paint); 8805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy restore(); 881f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 882f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8838ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 8848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 8858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 8865c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* paint) { 8876926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 8886926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8896926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8906926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 891746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 8928164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8939cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 89422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 8958164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 8968ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 8988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 899c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 9008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 9018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 9028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 9038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 904c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 90503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 9068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 9078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 90803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy int alpha; 90903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy SkXfermode::Mode mode; 91003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy getAlphaAndMode(paint, &alpha, &mode); 91103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 9126620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (mSnapshot->transform->isPureTranslate()) { 9136620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(dstLeft + mSnapshot->transform->getTranslateX() + 0.5f); 9146620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(dstTop + mSnapshot->transform->getTranslateY() + 0.5f); 9156620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 9166620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + (dstRight - dstLeft), y + (dstBottom - dstTop), 9176620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy texture->id, alpha / 255.0f, mode, texture->blend, 9186620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 9196620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount, false, true); 9206620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 9216620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(dstLeft, dstTop, dstRight, dstBottom, texture->id, alpha / 255.0f, 9226620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 9236620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 9246620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 9258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 927ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 928ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 9294aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int32_t* yDivs, 9304bb942083a0d4db746adf95349108dd8ef842e32Romain Guy const uint32_t* colors, uint32_t width, uint32_t height, int8_t numColors, 9315c13d89c1332fcc499379b9064b891187b75ca32Chet Haase float left, float top, float right, float bottom, SkPaint* paint) { 9326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 9336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 9346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 9356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 936746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 9378164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 9389cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 93922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 9408164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 941f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 942f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 943f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 944f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 945f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9462728f961614a385df1f056fc24803a9f65c90fabRomain Guy const Patch* mesh = mCaches.patchCache.get(bitmap->width(), bitmap->height(), 9474bb942083a0d4db746adf95349108dd8ef842e32Romain Guy right - left, bottom - top, xDivs, yDivs, colors, width, height, numColors); 948f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 949a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy if (mesh && mesh->verticesCount > 0) { 9506620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const bool pureTranslate = mSnapshot->transform->isPureTranslate(); 951a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#if RENDER_LAYERS_AS_REGIONS 9525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mark the current layer dirty where we are going to draw the patch 9535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && 9545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region && mesh->hasEmptyQuads) { 9555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const size_t count = mesh->quads.size(); 9565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 9578ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy const Rect& bounds = mesh->quads.itemAt(i); 9586620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 9596620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(bounds.left + 0.5f); 9606620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(bounds.top + 0.5f); 9618ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy dirtyLayer(x, y, x + bounds.getWidth(), y + bounds.getHeight(), 9626620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy *mSnapshot->transform); 9636620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 9646620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy dirtyLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, 9656620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy *mSnapshot->transform); 9666620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 9675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 9685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 969a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#endif 9705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 9716620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 9726620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(left + mSnapshot->transform->getTranslateX() + 0.5f); 9736620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(top + mSnapshot->transform->getTranslateY() + 0.5f); 9746620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 9756620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + right - left, y + bottom - top, texture->id, alpha / 255.0f, 9766620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 9776620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLES, mesh->verticesCount, false, true, mesh->meshBuffer, 9786620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy true, !mesh->hasEmptyQuads); 9796620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 9806620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, 9816620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 9826620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLES, mesh->verticesCount, false, false, mesh->meshBuffer, 9836620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy true, !mesh->hasEmptyQuads); 9846620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 985054dc1840941665e32036f9523df51720ad069c8Romain Guy } 986f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 987f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9885c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawLines(float* points, int count, SkPaint* paint) { 9897f78b0c3ae6222b39f6240524390de9764f21764Romain Guy // TODO: Should do quickReject for each line 990dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 991dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 9927f78b0c3ae6222b39f6240524390de9764f21764Romain Guy setupDraw(); 9937f78b0c3ae6222b39f6240524390de9764f21764Romain Guy 994759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy int alpha; 995759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode; 996759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy getAlphaAndMode(paint, &alpha, &mode); 997759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 998759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy uint32_t color = paint->getColor(); 999759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat a = alpha / 255.0f; 1000759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 1001759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 1002759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 1003759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1004c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const bool isAA = paint->isAntiAlias(); 1005c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 1006c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy GLuint textureUnit = 0; 1007746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 100829d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy setupTextureAlpha8(mCaches.line.getTexture(), 0, 0, textureUnit, 0.0f, 0.0f, r, g, b, a, 100903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mode, false, true, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 101003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.line.getMeshBuffer()); 1011c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 10127f78b0c3ae6222b39f6240524390de9764f21764Romain Guy setupColorRect(0.0f, 0.0f, 1.0f, 1.0f, r, g, b, a, mode, false, true); 1013c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 1014c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1015c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const float strokeWidth = paint->getStrokeWidth(); 101629d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy const GLsizei elementsCount = isAA ? mCaches.line.getElementsCount() : gMeshCount; 1017c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const GLenum drawMode = isAA ? GL_TRIANGLES : GL_TRIANGLE_STRIP; 1018759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1019759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy for (int i = 0; i < count; i += 4) { 1020759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float tx = 0.0f; 1021759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float ty = 0.0f; 1022759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1023c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 102429d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mCaches.line.update(points[i], points[i + 1], points[i + 2], points[i + 3], 1025c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy strokeWidth, tx, ty); 1026c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 1027b5ab4173e0927e4668a45298c9900cd8007584e1Romain Guy ty = strokeWidth <= 1.0f ? 0.0f : -strokeWidth * 0.5f; 1028c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 1029759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1030759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dx = points[i + 2] - points[i]; 1031759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dy = points[i + 3] - points[i + 1]; 1032759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float mag = sqrtf(dx * dx + dy * dy); 1033759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float angle = acos(dx / mag); 1034759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1035759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.loadTranslate(points[i], points[i + 1], 0.0f); 1036759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (angle > MIN_ANGLE || angle < -MIN_ANGLE) { 1037759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.rotate(angle * RAD_TO_DEG, 0.0f, 0.0f, 1.0f); 1038759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1039759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.translate(tx, ty, 0.0f); 1040c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (!isAA) { 104129d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy float length = mCaches.line.getLength(points[i], points[i + 1], 104229d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy points[i + 2], points[i + 3]); 1043c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy mModelView.scale(length, strokeWidth, 1.0f); 1044c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 1045759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 10465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Add bounds to the layer's region 1047759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1048759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (mShader) { 1049759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mShader->updateTransforms(mCaches.currentProgram, mModelView, *mSnapshot); 1050759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1051759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1052c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1053759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1054759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 105529d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy if (isAA) { 105629d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 105729d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy } 1058759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1059759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 106085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 1061e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // No need to check against the clip, we fill the clip region 1062e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (mSnapshot->invisible) return; 1063e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 1064ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy Rect& clip(*mSnapshot->clipRect); 1065ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clip.snapToPixelBoundaries(); 10663d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 1067c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 10689d5316e3f56d138504565ff311145ac01621dff4Romain Guy 10695c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, SkPaint* p) { 10706926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 10716926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 10726926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 10736926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 1074026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 1075746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1076a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 1077a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1078a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1079a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 1080a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1081a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1082a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 1083026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1084026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1085026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 1086026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 1087026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 1088d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 1089026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 1090026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1091026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1092026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 1093c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 10949d5316e3f56d138504565ff311145ac01621dff4Romain Guy 1095e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 1096e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 1097f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 1098e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 1099e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1100dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1101e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1102f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy paint->setAntiAlias(true); 1103e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 1104a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 1105e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 1106e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 1107e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1108e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 1109e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1110e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 1111e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1112e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 1113e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1114e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 1115e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1116e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1117e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 11186620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy // TODO: Handle paint->getTextScaleX() 11193a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy const float oldX = x; 11203a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy const float oldY = y; 11216620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const bool pureTranslate = mSnapshot->transform->isPureTranslate(); 11226620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate) { 11236620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy x = (int) floorf(x + mSnapshot->transform->getTranslateX() + 0.5f); 11246620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy y = (int) floorf(y + mSnapshot->transform->getTranslateY() + 0.5f); 11256620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 11266620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 1127694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 1128694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 1129694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 1130694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 11312542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 11322542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 11332542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 11342542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 11352542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 11362542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 1137b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 1138b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 1139fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 1140e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1141746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 11429d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 11431e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 11441e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 1145b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 1146fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 11471e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 11481e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 11490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 11506620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy setupShadow(shadow, x, y, mode, a, pureTranslate); 11510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 11520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 11530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1154fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 11551e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 11561e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 115706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 1158db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 115906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 11606620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy // Pick the appropriate texture filtering 11616620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy bool linearFilter = mSnapshot->transform->changesBounds(); 11626620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (pureTranslate && !linearFilter) { 11636620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy linearFilter = fabs(y - (int) y) > 0.0f || fabs(x - (int) x) > 0.0f; 11646620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 11655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Dimensions are set to (0,0), the layer (if any) won't be dirtied 1167e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy setupTextureAlpha8(fontRenderer.getTexture(linearFilter), 0, 0, textureUnit, 11686620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy x, y, r, g, b, a, mode, false, true, NULL, NULL, 0, pureTranslate); 116906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 11706620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const Rect* clip = pureTranslate ? mSnapshot->clipRect : &mSnapshot->getLocalClip(); 11715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 11725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 11745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = (mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region; 11755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 11765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = false; 11775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 11789d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 117903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 11806620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (fontRenderer.renderText(paint, clip, text, 0, bytesCount, count, x, y, 11815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy hasLayer ? &bounds : NULL)) { 11825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 11835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (hasLayer) { 11846620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (!pureTranslate) { 11856620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mSnapshot->transform->mapRect(bounds); 11866620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 11875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 11885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 11895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 11915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 11925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 11935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 11945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1195694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1196694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 1197fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 1198a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 11993a3fa1be9ab8e11edc660ecb35ae21ae0b5c8cc2Romain Guy drawTextDecorations(text, bytesCount, length, oldX, oldY, paint); 1200694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 1201694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 12027fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 1203dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1204dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 12057fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 12067fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 12077fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 1208fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 12099cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 121022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 12117fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12128b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 12138b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 12148b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 12158b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 12168b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 12178b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 12188b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 12197fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 12207fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 12217fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 12227fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12237fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 12247fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 12257fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 12267fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 12277fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 12287fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 12300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1231746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 12328694230ff25fa0a60e480d424843e56b718f0516Romain Guy 12330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 12340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1235fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 12367fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 12377fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 12386926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 1239d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 1240d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1241d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1242d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 124306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 124406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 124506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 124606f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 124706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 124806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1249fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 125006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 12517fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 12527fac2e18339f765320d759e8d4c090f92431959eRomain Guy 1253d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1254db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 1255db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 1256db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1257db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 1258db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1259db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1260db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1261db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 1262db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 1263db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1264db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1265db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 12661e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 12671e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 12681e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12691e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 12701e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 12711e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 12721e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12731e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 12741e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 12751e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 12761e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 12771e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 12781e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 12791e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 12801e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12811e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 12826926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 12836926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 12846926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 12850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 12866620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy SkXfermode::Mode mode, float alpha, bool ignoreTransforms) { 12870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 12880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 12890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12902542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 12912542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 12920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 12930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 12940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 12950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 12976620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 12986620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy sx, sy, r, g, b, a, mode, true, false, 12996620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 0, ignoreTransforms); 13000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 13030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 13040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 13050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 1306759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy x, y, r, g, b, a, mode, transforms, applyFilters, 130703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 13080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 13110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 13120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 131303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy setupTextureAlpha8(texture, width, height, textureUnit, x, y, r, g, b, a, mode, 131403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy transforms, applyFilters, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 1315759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1316759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1317759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 1318759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 1319759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters, 13206620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GLvoid* vertices, GLvoid* texCoords, GLuint vbo, bool ignoreTransform) { 13210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 13220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 13230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 13240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 1325707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setAlpha8Color(r, g, b, a); 13260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 13280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 1329746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 13300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1332746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 13330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1336a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 1337a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(true, mode, description); 1338a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 13390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 1340fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 13410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1342746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bindTexture(texture); 1343fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 13440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1345fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 13460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 13470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 134803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (texCoords) { 134903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy // Setup attributes 135003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 135103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 135203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 135303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 135403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 135503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 135603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, vertices); 135703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 135803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 13590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 13610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 13620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 13630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 13640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 13650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 13660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 13686620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mat4 t; 13696620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (!ignoreTransform) { 13706620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy t.load(*mSnapshot->transform); 13716620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 13726620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 13736620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, t); 13745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (width > 0 && height > 0) { 13756620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy dirtyLayer(x, y, x + width, y + height, t); 13765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 13775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 1378707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1379707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 1380707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 13810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 13830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 13840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 13850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 13866620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (ignoreTransform) { 13876620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mModelView.loadInverse(*mSnapshot->transform); 13886620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 1389fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 13900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1392fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 13930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1397f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy// Same values used by Skia 13980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 13990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 14000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 14010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 14030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 14040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 14050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 14060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 14070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 14080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 14090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 14100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 14110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 14140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 14150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 14160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 14170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 14180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 14190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 14200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 14210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 14220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 14230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 1426e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float textSize = paint->getTextSize(); 1427e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float strokeWidth = textSize * kStdUnderline_Thickness; 14280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1429e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float left = x - offsetX; 14300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 1431e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1432e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const int pointsCount = 4 * (flags & SkPaint::kStrikeThruText_Flag ? 2 : 1); 1433e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy float points[pointsCount]; 1434e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy int currentPoint = 0; 14350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 14370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 1438e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1439e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1440e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1441e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 14420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 14440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 14450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 1446e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1447e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1448e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1449e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 14500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 1451e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1452e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy SkPaint linesPaint(*paint); 1453e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy linesPaint.setStrokeWidth(strokeWidth); 1454e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1455e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy drawLines(&points[0], pointsCount, &linesPaint); 14560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 14580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 14590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1460026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 14611c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 1462746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 14638694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1464d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 146506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1466d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 1467d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1468d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1469d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 1470026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 1471d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 1472c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 1473c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 1474c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 1475c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1476c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy setupColorRect(left, top, right, bottom, r, g, b, a, mode, ignoreTransform); 1477c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1478c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy // Draw the mesh 1479c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1480c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy} 1481c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1482c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guyvoid OpenGLRenderer::setupColorRect(float left, float top, float right, float bottom, 14837f78b0c3ae6222b39f6240524390de9764f21764Romain Guy float r, float g, float b, float a, SkXfermode::Mode mode, 14847f78b0c3ae6222b39f6240524390de9764f21764Romain Guy bool ignoreTransform, bool ignoreMatrix) { 148506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 14869d5316e3f56d138504565ff311145ac01621dff4Romain Guy 148706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 1488889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1489707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(r, g, b, a); 1490707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy 149106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1492746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 1493c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 1494db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1495746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1496db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1497c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 14981c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy // Setup the blending mode 1499c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy chooseBlending(a < 1.0f || (mShader && mShader->blend()), mode, description); 1500a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 150106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 1502fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1503c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 150406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 150503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(); 1506fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 150703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, 0); 1508c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 15097f78b0c3ae6222b39f6240524390de9764f21764Romain Guy if (!ignoreMatrix) { 15107f78b0c3ae6222b39f6240524390de9764f21764Romain Guy // Setup uniforms 15117f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mModelView.loadTranslate(left, top, 0.0f); 15127f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 15137f78b0c3ae6222b39f6240524390de9764f21764Romain Guy if (!ignoreTransform) { 15147f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 15157f78b0c3ae6222b39f6240524390de9764f21764Romain Guy dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 15167f78b0c3ae6222b39f6240524390de9764f21764Romain Guy } else { 15177f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mat4 identity; 15187f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 15197f78b0c3ae6222b39f6240524390de9764f21764Romain Guy dirtyLayer(left, top, right, bottom); 15207f78b0c3ae6222b39f6240524390de9764f21764Romain Guy } 1521889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 152201d065795794fa56be660d6346e4830eb7e90a41Romain Guy if (!mShader || (mShader && setColor)) { 152301d065795794fa56be660d6346e4830eb7e90a41Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 152401d065795794fa56be660d6346e4830eb7e90a41Romain Guy } 1525d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 152606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 152706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 15286620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (ignoreMatrix) { 15296620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mModelView.loadIdentity(); 15306620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else if (ignoreTransform) { 15316620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy mModelView.loadInverse(*mSnapshot->transform); 15326620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 1533fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 1534d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1535db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1536fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1537db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1538d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 1539d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 154082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 15418164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture, SkPaint* paint) { 154282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 154382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 154482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 154582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 15468164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 15478164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy 15486620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy if (mSnapshot->transform->isPureTranslate()) { 15496620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float x = (int) floorf(left + mSnapshot->transform->getTranslateX() + 0.5f); 15506620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy const float y = (int) floorf(top + mSnapshot->transform->getTranslateY() + 0.5f); 15516620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy 15526620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(x, y, x + texture->width, y + texture->height, texture->id, 15536620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy alpha / 255.0f, mode, texture->blend, (GLvoid*) NULL, 15546620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount, false, true); 15556620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } else { 15566620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, 15576620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy texture->blend, (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, 15586620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 15596620c6d413f972819fada92b574f0fa9e96d36c1Romain Guy } 156085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 156185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 1562bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 1563a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 1564a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 156503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount); 1566f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 1567f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 1568f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 1569a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 15706820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 15715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool swapSrcDst, bool ignoreTransform, GLuint vbo, bool ignoreScale, bool dirty) { 1572746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 15738694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1574889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1575889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 1576707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 1577db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1578746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1579db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1580889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 1581bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 15825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!ignoreScale) { 15835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 15845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1585bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1586f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy chooseBlending(blend || alpha < 1.0f, mode, description, swapSrcDst); 1587a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1588fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1589f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (!ignoreTransform) { 1590f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 15915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1592f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } else { 15935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 identity; 15945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 15955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom); 1596f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 1597bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1598889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 15998164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bindTexture(texture); 1600fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 1601c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 1602a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 1603707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1604707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 1605707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 1606bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1607889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 1608fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 1609889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 161003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 161103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 161203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 161303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 161403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 161503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 1616fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1617ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 1618889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 1619bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1620db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 1621db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1622fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1623db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1624db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 16256820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1626889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 162782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 162882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1629a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 1630f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy ProgramDescription& description, bool swapSrcDst) { 163182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 163282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 1633a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 1634a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 1635a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 1636a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 163782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1638f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 1639f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 164082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1641a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 1642a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 1643a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 1644a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 1645a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1646a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1647a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 1648a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 1649a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 1650746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mCaches.extensions.hasFramebufferFetch()) { 1651a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 1652f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy description.swapSrcDst = swapSrcDst; 1653a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1654a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1655a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 1656a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 1657a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1658a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 165982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1660fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 166182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 166282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1663fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 1664bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 1665bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1666889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 1667d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 1668fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 1669d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 1670fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 16716926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 1672260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 16736926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 1674260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 1675260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 1676026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 1677ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 167882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 167982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 168082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 168182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 16828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 16838ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 16845c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::getAlphaAndMode(SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 16858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 1686746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1687a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 1688a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1689a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1690a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 1691a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1692a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1693a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 16948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 16958ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 16968ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 16978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 16988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 16998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 17008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 17018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 17028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 17038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 17048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 17058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 17068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1707026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1708026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1709a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 1710a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode == NULL) { 1711a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return SkXfermode::kSrcOver_Mode; 1712a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1713a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return mode->fMode; 1714a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 1715a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1716746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setTextureWrapModes(Texture* texture, GLenum wrapS, GLenum wrapT) { 17178164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bool bound = false; 17188164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapS != texture->wrapS) { 17198164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 17208164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bound = true; 17218164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 17228164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapS = wrapS; 17238164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 17248164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapT != texture->wrapT) { 17253e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy if (!bound) { 17263e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 17273e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy } 17288164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 17298164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapT = wrapT; 17308164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 1731a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1732a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 17339d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1734e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1735