OpenGLRenderer.cpp revision 0d200833fdc53f9796698f97c18cefc4a1b82df2
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) { 1388aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1398aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 1408fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 141f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 142fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 143fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 144d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 145bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1466b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy if (!opaque) { 147746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glDisable(GL_SCISSOR_TEST); 1486b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 1496b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy glClear(GL_COLOR_BUFFER_BIT); 1506b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy } 151bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1520d200833fdc53f9796698f97c18cefc4a1b82df2Chet Haase glEnable(GL_SCISSOR_TEST); 1530d200833fdc53f9796698f97c18cefc4a1b82df2Chet Haase glScissor(0, 0, mWidth, mHeight); 154b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 155bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 156bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 157b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guyvoid OpenGLRenderer::finish() { 158b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#if DEBUG_OPENGL 159b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy GLenum status = GL_NO_ERROR; 160b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy while ((status = glGetError()) != GL_NO_ERROR) { 161b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy LOGD("GL error from OpenGLRenderer: 0x%x", status); 162b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 163b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#endif 164b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy} 165b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy 166da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 167da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 168da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 169da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 170da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 171da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 172da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 17350c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.unbindMeshBuffer(); 174da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 175da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 176da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 177eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 178da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 179da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 180746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 181da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 182f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glDisable(GL_DITHER); 183f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 184f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, 0); 18503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 18650c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy 18750c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy mCaches.blend = true; 18850c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glEnable(GL_BLEND); 18950c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 19050c0f093d942a59d4e01b2c76d26c0e9d6ed796cRomain Guy glBlendEquation(GL_FUNC_ADD); 191da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 192da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 193f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 194f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 195f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 196f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 197bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1987ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 200bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2028aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 203bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 204bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2062542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2072542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 210bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 211bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2128fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2148fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2152542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2167ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 217bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 218bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2198aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 2208aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 2218fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 222bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 223bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 224bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2257ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 226bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 227eb99356a0548684a501766e6a524529ab93304c8Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 228bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 229bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2307ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 231bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 232eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (restoreOrtho) { 233eb99356a0548684a501766e6a524529ab93304c8Romain Guy Rect& r = previous->viewport; 234eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 235eb99356a0548684a501766e6a524529ab93304c8Romain Guy mOrthoMatrix.load(current->orthoMatrix); 236eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 237eb99356a0548684a501766e6a524529ab93304c8Romain Guy 2388b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2398b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2408b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 2412542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 242746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 2438fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2442542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2455ec9924d24495822b589f1a17996655d66273b30Romain Guy if (restoreLayer) { 2465ec9924d24495822b589f1a17996655d66273b30Romain Guy composeLayer(current, previous); 2475ec9924d24495822b589f1a17996655d66273b30Romain Guy } 2485ec9924d24495822b589f1a17996655d66273b30Romain Guy 2492542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 250d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2515cbbce535744b89df5ecea95de21ee3733298260Romain Guy 252f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 253bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 254bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 255bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 256bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 2575c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* p, int flags) { 258eb99356a0548684a501766e6a524529ab93304c8Romain Guy const GLuint previousFbo = mSnapshot->fbo; 259eb99356a0548684a501766e6a524529ab93304c8Romain Guy const int count = saveSnapshot(flags); 260d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 261e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mSnapshot->invisible) { 262e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy int alpha = 255; 263e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy SkXfermode::Mode mode; 264e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 265e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (p) { 266e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy alpha = p->getAlpha(); 267e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 268e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 269e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (!isMode) { 270e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // Assume SRC_OVER 271e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 272e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } 273e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy } else { 274e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = getXfermode(p->getXfermode()); 275a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 276a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 277e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy mode = SkXfermode::kSrcOver_Mode; 278d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 279d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 280dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags, previousFbo); 281dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 282d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 283d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 284bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 285bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 286bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 287bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 2885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (alpha >= 255 - ALPHA_THRESHOLD) { 2898aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 2908b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2918aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 2928aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 2938aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 2948b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 295d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 296bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2971c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 2981c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Layers are viewed by Skia are slightly different than layers in image editing 2991c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * programs (for instance.) When a layer is created, previously created layers 3001c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * and the frame buffer still receive every drawing command. For instance, if a 3011c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * layer is created and a shape intersecting the bounds of the layers and the 3021c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * framebuffer is draw, the shape will be drawn on both (unless the layer was 3031c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 3041c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3051c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * A way to implement layers is to create an FBO for each layer, backed by an RGBA 3061c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * texture. Unfortunately, this is inefficient as it requires every primitive to 3071c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be drawn n + 1 times, where n is the number of active layers. In practice this 3081c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * means, for every primitive: 3091c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Switch active frame buffer 3101c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Change viewport, clip and projection matrix 3111c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Issue the drawing 3121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Switching rendering target n + 1 times per drawn primitive is extremely costly. 3146b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * To avoid this, layers are implemented in a different way here, at least in the 3156b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * general case. FBOs are used, as an optimization, when the "clip to layer" flag 3166b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * is set. When this flag is set we can redirect all drawing operations into a 3176b7bd24659fb175fe1f0e97c86c18969918b496aRomain Guy * single FBO. 3181c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3191c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * This implementation relies on the frame buffer being at least RGBA 8888. When 3201c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * a layer is created, only a texture is created, not an FBO. The content of the 3211c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer contained within the layer's bounds is copied into this texture 32287a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame 3231c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * buffer and drawing continues as normal. This technique therefore treats the 3241c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer as a scratch buffer for the layers. 3251c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3261c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To compose the layers back onto the frame buffer, each layer texture 3271c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * (containing the original frame buffer data) is drawn as a simple quad over 3281c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * the frame buffer. The trick is that the quad is set as the composition 3291c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * destination in the blending equation, and the frame buffer becomes the source 3301c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * of the composition. 3311c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3321c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Drawing layers with an alpha value requires an extra step before composition. 3331c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * An empty quad is drawn over the layer's region in the frame buffer. This quad 3341c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 3351c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * quad is used to multiply the colors in the frame buffer. This is achieved by 3361c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * changing the GL blend functions for the GL_FUNC_ADD blend equation to 3371c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * GL_ZERO, GL_SRC_ALPHA. 3381c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3391c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Because glCopyTexImage2D() can be slow, an alternative implementation might 3401c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be use to draw a single clipped layer. The implementation described above 3411c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is correct in every case. 34287a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * 34387a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * (1) The frame buffer is actually not cleared right away. To allow the GPU 34487a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * to potentially optimize series of calls to glCopyTexImage2D, the frame 34587a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * buffer is left untouched until the first drawing operation. Only when 34687a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * something actually gets drawn are the layers regions cleared. 3471c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 348d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 349eb99356a0548684a501766e6a524529ab93304c8Romain Guy float right, float bottom, int alpha, SkXfermode::Mode mode, 350eb99356a0548684a501766e6a524529ab93304c8Romain Guy int flags, GLuint previousFbo) { 351eb99356a0548684a501766e6a524529ab93304c8Romain Guy LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top); 352fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 353dda570201ac851dd85af3861f7e575721d3345daRomain Guy 354eb99356a0548684a501766e6a524529ab93304c8Romain Guy const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag; 355eb99356a0548684a501766e6a524529ab93304c8Romain Guy 356f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Window coordinates of the layer 3578aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 358ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (fboLayer) { 359ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // Clear the previous layer regions before we change the viewport 360ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clearLayerRegions(); 361ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 362eb99356a0548684a501766e6a524529ab93304c8Romain Guy mSnapshot->transform->mapRect(bounds); 363ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 364eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Layers only make sense if they are in the framebuffer's bounds 36558ae6db4ff8a9d0910e1183ee8be9a038a2712a6Romain Guy bounds.intersect(*snapshot->clipRect); 366ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy 367ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy // We cannot work with sub-pixels in this case 368ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy bounds.snapToPixelBoundaries(); 369ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy 370ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // When the layer is not an FBO, we may use glCopyTexImage so we 371ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // need to make sure the layer does not extend outside the bounds 372ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy // of the framebuffer 373ae517591d96be39f5f18a1716c856ade13a8bcc7Romain Guy bounds.intersect(snapshot->previous->viewport); 374eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 375bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy 376746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (bounds.isEmpty() || bounds.getWidth() > mCaches.maxTextureSize || 377746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bounds.getHeight() > mCaches.maxTextureSize) { 378dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy snapshot->invisible = true; 379dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } else { 380e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy snapshot->invisible = snapshot->invisible || (alpha <= ALPHA_THRESHOLD && fboLayer); 381dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 382dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 383dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy // Bail out if we won't draw in this snapshot 384dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (snapshot->invisible) { 385b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy return false; 386b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 387dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glActiveTexture(gTextureUnits[0]); 3898550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy Layer* layer = mCaches.layerCache.get(bounds.getWidth(), bounds.getHeight()); 390f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 391f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 392bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 393bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 394dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 395f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy layer->alpha = alpha; 3968aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 3978550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy layer->texCoords.set(0.0f, bounds.getHeight() / float(layer->height), 3988550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy bounds.getWidth() / float(layer->width), 0.0f); 399dda570201ac851dd85af3861f7e575721d3345daRomain Guy 4008fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 4018fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 402dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 4031d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 404eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 4055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return createFboLayer(layer, bounds, snapshot, previousFbo); 406eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 407eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Copy the framebuffer into the layer 408eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 409eb99356a0548684a501766e6a524529ab93304c8Romain Guy 410ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy if (layer->empty) { 411ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bounds.left, 412ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, layer->width, layer->height, 0); 413ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy layer->empty = false; 414ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } else { 415ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bounds.left, 416ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy snapshot->height - bounds.bottom, bounds.getWidth(), bounds.getHeight()); 417ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy } 418eb99356a0548684a501766e6a524529ab93304c8Romain Guy 419eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Enqueue the buffer coordinates to clear the corresponding region later 420eb99356a0548684a501766e6a524529ab93304c8Romain Guy mLayers.push(new Rect(bounds)); 421eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 422f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 423d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 424bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 425bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 4265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guybool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, sp<Snapshot> snapshot, 4275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLuint previousFbo) { 4285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->fbo = mCaches.fboCache.get(); 4295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 4315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->region = &snapshot->layer->region; 4325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagFboTarget; 4335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clip(bounds); 4365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->transform->mapRect(clip); 4375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(*snapshot->clipRect); 4385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(snapshot->previous->viewport); 4405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 inverse; 4425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.loadInverse(*mSnapshot->transform); 4435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inverse.mapRect(clip); 4455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.snapToPixelBoundaries(); 4465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.intersect(bounds); 4475ec9924d24495822b589f1a17996655d66273b30Romain Guy clip.translate(-bounds.left, -bounds.top); 4485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagIsFboLayer; 4505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->fbo = layer->fbo; 4515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 4525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy //snapshot->resetClip(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom); 4545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 4555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->height = bounds.getHeight(); 4565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 4575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 4585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Bind texture to FBO 4605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 4615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 4625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Initialize the texture if needed 4645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->empty) { 4655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->empty = false; 4665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, layer->width, layer->height, 0, 4675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 4685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 4715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->texture, 0); 4725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 4745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); 4755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (status != GL_FRAMEBUFFER_COMPLETE) { 4765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy LOGE("Framebuffer incomplete (GL error code 0x%x)", status); 4775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 4795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDeleteTextures(1, &layer->texture); 4805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.fboCache.put(layer->fbo); 4815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy delete layer; 4835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return false; 4855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 4865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 4875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the FBO, expand the clear region by 1 to get nice bilinear filtering 4895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(clip.left - 1.0f, bounds.getHeight() - clip.bottom - 1.0f, 4905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clip.getWidth() + 2.0f, clip.getHeight() + 2.0f); 4915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 4925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 4935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 4955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 4965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Change the ortho projection 4975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 4985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 4995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return true; 5015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5031c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 5041c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Read the documentation of createLayer() before doing anything in this method. 5051c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 5061d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 5071d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 5081d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 5091d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 5101d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5111d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool fboLayer = current->flags & Snapshot::kFlagIsFboLayer; 513eb99356a0548684a501766e6a524529ab93304c8Romain Guy 514eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 515eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Unbind current FBO and restore previous one 516eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 517eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 518eb99356a0548684a501766e6a524529ab93304c8Romain Guy 5191d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 5201d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 5211d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 522eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (!fboLayer && layer->alpha < 255) { 523f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawColorRect(rect.left, rect.top, rect.right, rect.bottom, 5241c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy layer->alpha << 24, SkXfermode::kDstIn_Mode, true); 5255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Required below, composeLayerRect() will divide by 255 5265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha = 255; 527f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 528f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 52903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 5308b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 531746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 5325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // When the layer is stored in an FBO, we can save a bit of fillrate by 5345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // drawing only the dirty region 535eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 5365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom, *previous->transform); 5375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRegion(layer, rect); 538eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 5395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(rect.left, rect.top, rect.right, rect.bottom); 5405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect, true); 541eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 5421d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 543eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 544eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Detach the texture from the FBO 545eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, current->fbo); 546eb99356a0548684a501766e6a524529ab93304c8Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 547eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 548eb99356a0548684a501766e6a524529ab93304c8Romain Guy 549eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Put the FBO name back in the cache, if it doesn't fit, it will be destroyed 550eb99356a0548684a501766e6a524529ab93304c8Romain Guy mCaches.fboCache.put(current->fbo); 551eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 552eb99356a0548684a501766e6a524529ab93304c8Romain Guy 553746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 554746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 555eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Failing to add the layer to the cache should happen only if the layer is too large 5568550c4c7b5952b7a4e1e0ede95c9492d03099a13Romain Guy if (!mCaches.layerCache.put(layer)) { 5571d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 5581d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 5591d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 5601d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5611d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 5621d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRect(Layer* layer, const Rect& rect, bool swap) { 5645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const Rect& texCoords = layer->texCoords; 5655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(texCoords.left, texCoords.top, texCoords.right, texCoords.bottom); 5665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureMesh(rect.left, rect.top, rect.right, rect.bottom, layer->texture, 5685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->alpha / 255.0f, layer->mode, layer->blend, &mMeshVertices[0].position[0], 5695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy &mMeshVertices[0].texture[0], GL_TRIANGLE_STRIP, gMeshCount, swap, swap); 5705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 5725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 5735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) { 5755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 5765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (layer->region.isRect()) { 5775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 5785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 5795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy return; 5805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 5815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!layer->region.isEmpty()) { 5835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy size_t count; 5845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* rects = layer->region.getArray(&count); 5855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy setupDraw(); 5875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy ProgramDescription description; 5895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy description.hasTexture = true; 5905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float alpha = layer->alpha / 255.0f; 5925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 5935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy chooseBlending(layer->blend || layer->alpha < 255, layer->mode, description, false); 5945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy useProgram(mCaches.programCache.get(description)); 5965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Texture 5985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bindTexture(layer->texture); 5995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 6005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Always premultiplied 6025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (setColor) { 6035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 6045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mesh 6075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 6085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 6095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.loadIdentity(); 6115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 6125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texX = 1.0f / float(layer->width); 6145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float texY = 1.0f / float(layer->height); 6155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex* mesh = mCaches.getRegionMesh(); 6175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GLsizei numQuads = 0; 6185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 6205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].position[0]); 6215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 6225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy gMeshStride, &mesh[0].texture[0]); 6235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const android::Rect* r = &rects[i]; 6265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u1 = r->left * texX; 6285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v1 = (rect.getHeight() - r->top) * texY; 6295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float u2 = r->right * texX; 6305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float v2 = (rect.getHeight() - r->bottom) * texY; 6315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Reject quads outside of the clip 6335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->top, u1, v1); 6345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->top, u2, v1); 6355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->left, r->bottom, u1, v2); 6365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy TextureVertex::set(mesh++, r->right, r->bottom, u2, v2); 6375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads++; 6395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads >= REGION_MESH_QUAD_COUNT) { 6415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy numQuads = 0; 6435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mesh = mCaches.getRegionMesh(); 6445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6465b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6475b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (numQuads > 0) { 6485b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDrawElements(GL_TRIANGLES, numQuads * 6, GL_UNSIGNED_SHORT, NULL); 6495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 6525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 6535b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6545b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if DEBUG_LAYERS_AS_REGIONS 6555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t colors[] = { 6565b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7fff0000, 0x7f00ff00, 6575b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 0x7f0000ff, 0x7fff00ff, 6585b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy }; 6595b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int offset = 0; 6615b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int32_t top = rects[0].top; 6625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy int i = 0; 6635b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6645b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 6655b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (top != rects[i].top) { 6665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy offset ^= 0x2; 6675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy top = rects[i].top; 6685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect r(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom); 6715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawColorRect(r.left, r.top, r.right, r.bottom, colors[offset + (i & 0x1)], 6725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy SkXfermode::kSrcOver_Mode); 6735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6765b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy layer->region.clear(); 6775b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6785b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 6795b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy composeLayerRect(layer, rect); 6805b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 6825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 6845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom, const mat4 transform) { 6855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 6865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 6875b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 6885b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy transform.mapRect(bounds); 6895b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 6905b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 6915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 6925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 6935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 6945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 6955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 6975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 6985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 6995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid OpenGLRenderer::dirtyLayer(const float left, const float top, 7015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const float right, const float bottom) { 7025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 7035b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region) { 7045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(left, top, right, bottom); 7055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 7065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 7075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 7095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!dirty.isEmpty()) { 7105b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 7115b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 7145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy} 7155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 716746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setupDraw() { 717746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy clearLayerRegions(); 718746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mDirtyClip) { 719746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setScissorFromClip(); 720746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy } 721746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy} 722746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy 7238694230ff25fa0a60e480d424843e56b718f0516Romain Guyvoid OpenGLRenderer::clearLayerRegions() { 724dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mLayers.size() == 0 || mSnapshot->invisible) return; 7258694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect clipRect(*mSnapshot->clipRect); 7275b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy clipRect.snapToPixelBoundaries(); 7285b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7298694230ff25fa0a60e480d424843e56b718f0516Romain Guy for (uint32_t i = 0; i < mLayers.size(); i++) { 7308694230ff25fa0a60e480d424843e56b718f0516Romain Guy Rect* bounds = mLayers.itemAt(i); 7315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (clipRect.intersects(*bounds)) { 7325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Clear the framebuffer where the layer will draw 7335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glScissor(bounds->left, mSnapshot->height - bounds->bottom, 7345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds->getWidth(), bounds->getHeight()); 7355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 7365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy glClear(GL_COLOR_BUFFER_BIT); 7375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 7385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Restore the clip 7395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyClip(); 7405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 7418694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7428694230ff25fa0a60e480d424843e56b718f0516Romain Guy delete bounds; 7438694230ff25fa0a60e480d424843e56b718f0516Romain Guy } 7448694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mLayers.clear(); 7468694230ff25fa0a60e480d424843e56b718f0516Romain Guy} 7478694230ff25fa0a60e480d424843e56b718f0516Romain Guy 748bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 749f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 750f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 751f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 752f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 7538aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 754f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 755f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 756f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 7578aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 758f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 759f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 760f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 7618aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 762f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 763f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 764f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 7658aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 766f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 767f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 76841030da16856c8869e1e51d4a0405432fa96614eRomain Guyconst float* OpenGLRenderer::getMatrix() const { 76999bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy if (mSnapshot->fbo != 0) { 77099bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mSnapshot->transform->data[0]; 77199bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy } 77299bcdc52dcb365ed7d8cfa13540fb33fbcbbac9dRomain Guy return &mIdentity.data[0]; 77341030da16856c8869e1e51d4a0405432fa96614eRomain Guy} 77441030da16856c8869e1e51d4a0405432fa96614eRomain Guy 775f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 7768aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 777f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 778f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 779f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 780e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy SkMatrix transform; 781e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->copyTo(transform); 782e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy transform.preConcat(*matrix); 783e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy mSnapshot->transform->load(transform); 784f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 785f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 786f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 787f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 788f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 789f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 790bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 791e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy Rect clip(*mSnapshot->clipRect); 792e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy clip.snapToPixelBoundaries(); 793eb99356a0548684a501766e6a524529ab93304c8Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 794746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mDirtyClip = false; 7959d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 7969d5316e3f56d138504565ff311145ac01621dff4Romain Guy 7979d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 798079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 799bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 800bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 801c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 802dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) { 803dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy return true; 804dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy } 805dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 8061d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 8078aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 808d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy r.snapToPixelBoundaries(); 809d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 810d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy Rect clipRect(*mSnapshot->clipRect); 811d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy clipRect.snapToPixelBoundaries(); 812d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy 813d2a1ff003b9b1212c9ab4b5f679b5b097720a359Romain Guy return !clipRect.intersects(r); 814c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 815c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 816079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 817079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 8187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 819746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy dirtyClip(); 8207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 8218aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 822e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 823e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 824f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 825f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 826f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 827f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 8280fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guyvoid OpenGLRenderer::drawDisplayList(DisplayList* displayList) { 8290fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // All the usual checks and setup operations (quickReject, setupDraw, etc.) 8300fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy // will be performed by the display list itself 8310fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy if (displayList) { 8320fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy displayList->replay(*this); 8330fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy } 8340fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy} 8350fe478ea04720a57ef3919dbc23711bc7eba517fRomain Guy 8365c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, SkPaint* paint) { 8376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 8386926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 8396926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 8406926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 8416926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8426926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8436926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 84461c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8458164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8469cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 84722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 84822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 8508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 8518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8525c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) { 853f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 854f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 855f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 856f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 8586926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 86161c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 8628164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8639cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 86422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 86522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 8665b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // This could be done in a cheaper way, all we need is pass the matrix 8675b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // to the vertex shader. The save/restore is a bit overkill. 8685b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy save(SkCanvas::kMatrix_SaveFlag); 8695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy concatMatrix(matrix); 8705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureRect(0.0f, 0.0f, bitmap->width(), bitmap->height(), texture, paint); 8715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy restore(); 872f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 873f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 8748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 8758ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 8768ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 8775c13d89c1332fcc499379b9064b891187b75ca32Chet Haase SkPaint* paint) { 8786926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 8796926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 8806926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 8816926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 882746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 8838164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 8849cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 88522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 8868164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 8878ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 8888ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 8898ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 890c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 8918ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 8928ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 8938ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 8948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 895c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 89603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 8978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 8988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 89903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy int alpha; 90003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy SkXfermode::Mode mode; 90103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy getAlphaAndMode(paint, &alpha, &mode); 90203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 90303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy drawTextureMesh(dstLeft, dstTop, dstRight, dstBottom, texture->id, alpha / 255.0f, 90403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mode, texture->blend, &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 90503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy GL_TRIANGLE_STRIP, gMeshCount); 9068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 908ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 909ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 9104aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int32_t* yDivs, 9114bb942083a0d4db746adf95349108dd8ef842e32Romain Guy const uint32_t* colors, uint32_t width, uint32_t height, int8_t numColors, 9125c13d89c1332fcc499379b9064b891187b75ca32Chet Haase float left, float top, float right, float bottom, SkPaint* paint) { 9136926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 9146926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 9156926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 9166926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 917746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[0]); 9188164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mCaches.textureCache.get(bitmap); 9199cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 92022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 9218164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 922f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 923f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 924f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 925f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 926f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9272728f961614a385df1f056fc24803a9f65c90fabRomain Guy const Patch* mesh = mCaches.patchCache.get(bitmap->width(), bitmap->height(), 9284bb942083a0d4db746adf95349108dd8ef842e32Romain Guy right - left, bottom - top, xDivs, yDivs, colors, width, height, numColors); 929f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 930054dc1840941665e32036f9523df51720ad069c8Romain Guy if (mesh) { 9315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Mark the current layer dirty where we are going to draw the patch 9325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if ((mSnapshot->flags & Snapshot::kFlagFboTarget) && 9335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region && mesh->hasEmptyQuads) { 9345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy const size_t count = mesh->quads.size(); 9355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy for (size_t i = 0; i < count; i++) { 9365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds = mesh->quads.itemAt(i); 9375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, 9385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy *mSnapshot->transform); 9395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 9405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 9415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 9425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, 94303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mode, texture->blend, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 9445b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy GL_TRIANGLES, mesh->verticesCount, false, false, mesh->meshBuffer, 9455b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy true, !mesh->hasEmptyQuads); 946054dc1840941665e32036f9523df51720ad069c8Romain Guy } 947f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 948f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 9495c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawLines(float* points, int count, SkPaint* paint) { 9507f78b0c3ae6222b39f6240524390de9764f21764Romain Guy // TODO: Should do quickReject for each line 951dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 952dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 9537f78b0c3ae6222b39f6240524390de9764f21764Romain Guy setupDraw(); 9547f78b0c3ae6222b39f6240524390de9764f21764Romain Guy 955759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy int alpha; 956759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode; 957759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy getAlphaAndMode(paint, &alpha, &mode); 958759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 959759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy uint32_t color = paint->getColor(); 960759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat a = alpha / 255.0f; 961759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 962759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 963759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 964759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 965c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const bool isAA = paint->isAntiAlias(); 966c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 967c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy GLuint textureUnit = 0; 968746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 96929d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy setupTextureAlpha8(mCaches.line.getTexture(), 0, 0, textureUnit, 0.0f, 0.0f, r, g, b, a, 97003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mode, false, true, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset, 97103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.line.getMeshBuffer()); 972c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 9737f78b0c3ae6222b39f6240524390de9764f21764Romain Guy setupColorRect(0.0f, 0.0f, 1.0f, 1.0f, r, g, b, a, mode, false, true); 974c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 975c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 976c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const float strokeWidth = paint->getStrokeWidth(); 97729d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy const GLsizei elementsCount = isAA ? mCaches.line.getElementsCount() : gMeshCount; 978c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const GLenum drawMode = isAA ? GL_TRIANGLES : GL_TRIANGLE_STRIP; 979759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 980759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy for (int i = 0; i < count; i += 4) { 981759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float tx = 0.0f; 982759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float ty = 0.0f; 983759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 984c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 98529d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mCaches.line.update(points[i], points[i + 1], points[i + 2], points[i + 3], 986c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy strokeWidth, tx, ty); 987c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 988b5ab4173e0927e4668a45298c9900cd8007584e1Romain Guy ty = strokeWidth <= 1.0f ? 0.0f : -strokeWidth * 0.5f; 989c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 990759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 991759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dx = points[i + 2] - points[i]; 992759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dy = points[i + 3] - points[i + 1]; 993759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float mag = sqrtf(dx * dx + dy * dy); 994759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float angle = acos(dx / mag); 995759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 996759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.loadTranslate(points[i], points[i + 1], 0.0f); 997759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (angle > MIN_ANGLE || angle < -MIN_ANGLE) { 998759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.rotate(angle * RAD_TO_DEG, 0.0f, 0.0f, 1.0f); 999759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1000759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.translate(tx, ty, 0.0f); 1001c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (!isAA) { 100229d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy float length = mCaches.line.getLength(points[i], points[i + 1], 100329d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy points[i + 2], points[i + 3]); 1004c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy mModelView.scale(length, strokeWidth, 1.0f); 1005c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 1006759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 10075b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // TODO: Add bounds to the layer's region 1008759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1009759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (mShader) { 1010759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mShader->updateTransforms(mCaches.currentProgram, mModelView, *mSnapshot); 1011759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1012759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1013c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1014759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 1015759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 101629d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy if (isAA) { 101729d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 101829d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy } 1019759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1020759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 102185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 1022e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy // No need to check against the clip, we fill the clip region 1023e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy if (mSnapshot->invisible) return; 1024e45362cad94c014d8b3765cb102db0f8c0d92500Romain Guy 1025ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy Rect& clip(*mSnapshot->clipRect); 1026ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy clip.snapToPixelBoundaries(); 10273d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 1028c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 10299d5316e3f56d138504565ff311145ac01621dff4Romain Guy 10305c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, SkPaint* p) { 10316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 10326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 10336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 10346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 1035026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 1036746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1037a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 1038a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1039a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1040a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 1041a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1042a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1043a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 1044026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1045026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1046026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 1047026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 1048026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 1049d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 1050026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 1051026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 1052026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1053026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 1054c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 10559d5316e3f56d138504565ff311145ac01621dff4Romain Guy 1056e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 1057e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 1058f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 1059e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 1060e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1061dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1062e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1063f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy paint->setAntiAlias(true); 1064e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 1065a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 1066e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 1067e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 1068e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1069e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 1070e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1071e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 1072e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 1073e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 1074e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1075e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 1076e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 1077e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 1078e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 1079694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 1080694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 1081694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 1082694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 10832542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 10842542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 10852542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 10862542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 10872542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 10882542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 1089b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 1090b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 1091fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 1092e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 1093746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 10949d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 10951e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 10961e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 1097b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 1098fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 10991e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 11001e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 11010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 11022542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 11030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 11040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 11050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1106fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 11071e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 11081e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 110906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 1110db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 111106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 1112e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy // Assume that the modelView matrix does not force scales, rotates, etc. 1113e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const bool linearFilter = mSnapshot->transform->changesBounds(); 11145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Dimensions are set to (0,0), the layer (if any) won't be dirtied 1116e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy setupTextureAlpha8(fontRenderer.getTexture(linearFilter), 0, 0, textureUnit, 111703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy x, y, r, g, b, a, mode, false, true, NULL, NULL); 111806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 111909147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 11205b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f); 11215b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11225b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 11235b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = (mSnapshot->flags & Snapshot::kFlagFboTarget) && mSnapshot->region; 11245b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#else 11255b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool hasLayer = false; 11265b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 11279d13fe25f4f10b25776b1dc5c858f9ebb0b28b30Romain Guy 112803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 11295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (fontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y, 11305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy hasLayer ? &bounds : NULL)) { 11315b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#if RENDER_LAYERS_AS_REGIONS 11325b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (hasLayer) { 11335b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->transform->mapRect(bounds); 11345b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.intersect(*mSnapshot->clipRect); 11355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bounds.snapToPixelBoundaries(); 11365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 11375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom); 11385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mSnapshot->region->orSelf(dirty); 11395b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 11405b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif 11415b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1142694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1143694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 1144fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 1145a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 11460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 1147694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 1148694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 11497fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 1150dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy if (mSnapshot->invisible) return; 1151dbc26d2ba13f80a7590c57de2d80530d96832969Romain Guy 11527fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 11537fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 11547fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 1155fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 11569cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 115722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 11587fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11598b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 11608b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 11618b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 11628b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 11638b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 11648b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 11658b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 11667fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 11677fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 11687fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 11697fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11707fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 11717fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 11727fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 11737fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 11747fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 11757fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 11770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1178746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 11798694230ff25fa0a60e480d424843e56b718f0516Romain Guy 11800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 11810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1182fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 11837fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 11847fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 11856926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 1186d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 1187d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1188d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1189d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 119006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 119106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 119206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 119306f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 119406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 119506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1196fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 119706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 11987fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 11997fac2e18339f765320d759e8d4c090f92431959eRomain Guy 1200d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 1201db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 1202db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 1203db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1204db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 1205db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1206db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1207db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1208db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 1209db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 1210db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 1211db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1212db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 12131e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 12141e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 12151e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12161e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 12171e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 12181e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 12191e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12201e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 12211e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 12221e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 12231e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 12241e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 12251e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 12261e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 12271e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 12281e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 12296926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 12306926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 12316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 12320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 12332542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 12340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 12350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 12360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12372542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 12382542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 12390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 12400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 12410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 12420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 12440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 12450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 12460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 12480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 12490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 12500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 1251759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy x, y, r, g, b, a, mode, transforms, applyFilters, 125203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 12530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 12540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 12560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 12570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 125803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy setupTextureAlpha8(texture, width, height, textureUnit, x, y, r, g, b, a, mode, 125903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy transforms, applyFilters, (GLvoid*) 0, (GLvoid*) gMeshTextureOffset); 1260759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 1261759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 1262759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 1263759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 1264759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters, 126503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy GLvoid* vertices, GLvoid* texCoords, GLuint vbo) { 12660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 12670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 12680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 12690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 1270707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setAlpha8Color(r, g, b, a); 12710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 12720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 12730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 1274746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 12750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 12760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1277746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 12780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 12790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 12800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1281a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 1282a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(true, mode, description); 1283a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 12840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 1285fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 12860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1287746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy bindTexture(texture); 1288fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 12890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1290fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 12910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 12920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 129303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (texCoords) { 129403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy // Setup attributes 129503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 129603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 129703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 129803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 129903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 130003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 130103750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, vertices); 130203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 130303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 13040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 13060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 13070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 13080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 13090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 13100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 13110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 13138aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 13145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (width > 0 && height > 0) { 13155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy dirtyLayer(x, y, x + width, y + height, *mSnapshot->transform); 13165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 13175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 1318707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1319707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 1320707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 13210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 13230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 13240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 13250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 1326fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 13270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1329fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 13300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1334f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy// Same values used by Skia 13350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 13360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 13370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 13380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 13400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 13410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 13420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 13430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 13440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 13450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 13460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 13470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 13480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 13510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 13520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 13530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 13540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 13550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 13560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 13570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 13580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 13590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 13600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 1363e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float textSize = paint->getTextSize(); 1364e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float strokeWidth = textSize * kStdUnderline_Thickness; 13650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1366e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float left = x - offsetX; 13670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 1368e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1369e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const int pointsCount = 4 * (flags & SkPaint::kStrikeThruText_Flag ? 2 : 1); 1370e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy float points[pointsCount]; 1371e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy int currentPoint = 0; 13720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 13740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 1375e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1376e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1377e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1378e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 13790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 13810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 13820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 1383e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1384e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1385e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1386e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 13870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 1388e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1389e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy SkPaint linesPaint(*paint); 1390e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy linesPaint.setStrokeWidth(strokeWidth); 1391e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1392e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy drawLines(&points[0], pointsCount, &linesPaint); 13930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 13950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 13960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1397026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 13981c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 1399746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 14008694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1401d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 140206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1403d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 1404d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1405d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1406d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 1407026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 1408d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 1409c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 1410c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 1411c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 1412c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1413c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy setupColorRect(left, top, right, bottom, r, g, b, a, mode, ignoreTransform); 1414c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1415c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy // Draw the mesh 1416c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1417c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy} 1418c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1419c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guyvoid OpenGLRenderer::setupColorRect(float left, float top, float right, float bottom, 14207f78b0c3ae6222b39f6240524390de9764f21764Romain Guy float r, float g, float b, float a, SkXfermode::Mode mode, 14217f78b0c3ae6222b39f6240524390de9764f21764Romain Guy bool ignoreTransform, bool ignoreMatrix) { 142206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 14239d5316e3f56d138504565ff311145ac01621dff4Romain Guy 142406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 1425889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1426707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(r, g, b, a); 1427707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy 142806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1429746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mShader->describe(description, mCaches.extensions); 1430c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 1431db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1432746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1433db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1434c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 14351c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy // Setup the blending mode 1436c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy chooseBlending(a < 1.0f || (mShader && mShader->blend()), mode, description); 1437a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 143806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 1439fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1440c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 144106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 144203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(); 1443fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 144403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy gMeshStride, 0); 1445c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 14467f78b0c3ae6222b39f6240524390de9764f21764Romain Guy if (!ignoreMatrix) { 14477f78b0c3ae6222b39f6240524390de9764f21764Romain Guy // Setup uniforms 14487f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mModelView.loadTranslate(left, top, 0.0f); 14497f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 14507f78b0c3ae6222b39f6240524390de9764f21764Romain Guy if (!ignoreTransform) { 14517f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 14527f78b0c3ae6222b39f6240524390de9764f21764Romain Guy dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 14537f78b0c3ae6222b39f6240524390de9764f21764Romain Guy } else { 14547f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mat4 identity; 14557f78b0c3ae6222b39f6240524390de9764f21764Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 14567f78b0c3ae6222b39f6240524390de9764f21764Romain Guy dirtyLayer(left, top, right, bottom); 14577f78b0c3ae6222b39f6240524390de9764f21764Romain Guy } 1458889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 1459707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(r, g, b, a); 1460d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 146106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 146206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 14637f78b0c3ae6222b39f6240524390de9764f21764Romain Guy if (ignoreMatrix) mModelView.loadIdentity(); 1464fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 1465d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1466db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1467fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1468db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1469d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 1470d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 147182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 14728164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture, SkPaint* paint) { 147382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 147482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 147582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 147682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 14778164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy setTextureWrapModes(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE); 14788164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy 14796820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, 148003750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy texture->blend, (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, 14816820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 148285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 148385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 1484bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 1485a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 1486a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 148703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset, GL_TRIANGLE_STRIP, gMeshCount); 1488f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 1489f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 1490f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 1491a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 14926820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 14935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool swapSrcDst, bool ignoreTransform, GLuint vbo, bool ignoreScale, bool dirty) { 1494746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy setupDraw(); 14958694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1496889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1497889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 1498707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy const bool setColor = description.setColor(alpha, alpha, alpha, alpha); 1499db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1500746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy mColorFilter->describe(description, mCaches.extensions); 1501db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1502889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 1503bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 15045b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (!ignoreScale) { 15055b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 15065b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1507bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1508f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy chooseBlending(blend || alpha < 1.0f, mode, description, swapSrcDst); 1509a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1510fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1511f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (!ignoreTransform) { 1512f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 15135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom, *mSnapshot->transform); 1514f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } else { 15155b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mat4 identity; 15165b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 15175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (dirty) dirtyLayer(left, top, right, bottom); 1518f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 1519bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1520889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 15218164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bindTexture(texture); 1522fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 1523c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 1524a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 1525707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy if (setColor) { 1526707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy mCaches.currentProgram->setColor(alpha, alpha, alpha, alpha); 1527707b2f78ccaa09965d7e030fda3a883ce9b75ea8Romain Guy } 1528bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1529889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 1530fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 1531889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 153203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 153303750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy if (!vertices) { 153403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo); 153503750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } else { 153603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy mCaches.unbindMeshBuffer(); 153703750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy } 1538fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1539ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 1540889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 1541bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1542db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 1543db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1544fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1545db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1546db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 15476820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1548889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 154982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 155082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1551a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 1552f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy ProgramDescription& description, bool swapSrcDst) { 155382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 155482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 1555a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 1556a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 1557a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 1558a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 155982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1560f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 1561f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 156282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1563a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 1564a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 1565a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 1566a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 1567a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1568a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1569a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 1570a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 1571a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 1572746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (mCaches.extensions.hasFramebufferFetch()) { 1573a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 1574f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy description.swapSrcDst = swapSrcDst; 1575a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1576a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1577a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 1578a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 1579a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1580a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 158182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1582fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 158382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 158482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1585fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 1586bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 1587bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1588889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 1589d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 1590fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 1591d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 1592fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 15936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 1594260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 15956926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 1596260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 1597260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 1598026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 1599ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 160082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 160182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 160282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 160382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 16048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 16058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 16065c13d89c1332fcc499379b9064b891187b75ca32Chet Haasevoid OpenGLRenderer::getAlphaAndMode(SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 16078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 1608746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guy if (!mCaches.extensions.hasFramebufferFetch()) { 1609a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 1610a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1611a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1612a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 1613a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1614a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1615a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 16168ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 16178ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 16188ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 16198ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 16208ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 16218ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 16228ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 16238ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 16248ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 16258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 16268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 16278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 16288ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1629026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1630026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1631a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 1632a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode == NULL) { 1633a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return SkXfermode::kSrcOver_Mode; 1634a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1635a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return mode->fMode; 1636a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 1637a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1638746b7401ceb86b5f2805f8c0d3b39ac739152015Romain Guyvoid OpenGLRenderer::setTextureWrapModes(Texture* texture, GLenum wrapS, GLenum wrapT) { 16398164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bool bound = false; 16408164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapS != texture->wrapS) { 16418164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 16428164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy bound = true; 16438164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 16448164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapS = wrapS; 16458164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 16468164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy if (wrapT != texture->wrapT) { 16473e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy if (!bound) { 16483e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 16493e3ba155fc0ef7a7f40f06762240d9ba22f62b19Romain Guy } 16508164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 16518164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy texture->wrapT = wrapT; 16528164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy } 1653a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1654a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 16559d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1656e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1657