OpenGLRenderer.cpp revision eb99356a0548684a501766e6a524529ab93304c8
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 2985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "OpenGLRenderer.h" 30e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 31e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 329d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 339d5316e3f56d138504565ff311145ac01621dff4Romain Guy 349d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 359d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 379d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#define REQUIRED_TEXTURE_UNITS_COUNT 3 3906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 40dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 41bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 429d5316e3f56d138504565ff311145ac01621dff4Romain Guy 43759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define RAD_TO_DEG (180.0f / 3.14159265f) 44759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy#define MIN_ANGLE 0.001f 45759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 469d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 479d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 489d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 499d5316e3f56d138504565ff311145ac01621dff4Romain Guy 50026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 51026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 52ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const TextureVertex gMeshVertices[] = { 53c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 54c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 55c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 56c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 57bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 58ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshStride = sizeof(TextureVertex); 59ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshCount = 4; 60026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 61889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 62889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 63889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 64889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 65889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 66889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 67889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 68889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 69889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 70026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 71026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 82026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 83026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 84026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 85026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 86e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 8787a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// This array contains the swapped version of each SkXfermode. For instance 8887a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// this array's SrcOver blending mode is actually DstOver. You can refer to 8987a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy// createLayer() for more information on the purpose of this array. 90f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guystatic const Blender gBlendsSwap[] = { 91f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 92f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE }, 93f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDst_Mode, GL_ONE, GL_ZERO }, 94f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 95f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 96f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 97f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO }, 98f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 99f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 100f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 101f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 102f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 103f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy}; 104f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 105889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 10606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 10706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 10806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 109d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 110d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 111f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 112f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 113f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 114f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 115fb8b763f762ae21923c58d64caa729b012f40e05Romain GuyOpenGLRenderer::OpenGLRenderer(): mCaches(Caches::getInstance()) { 11606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 117db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1181e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 119026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 120ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 121ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 122ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 123ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy 124ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy GLint maxTextureUnits; 125ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits); 126ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) { 127889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT); 128889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 129b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy 130b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize); 131e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 132e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 13385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 13429d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // The context has already been destroyed at this point, do not call 13529d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy // GL APIs. All GL state should be kept in Caches.h 136e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 137e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 138f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 139f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 140f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 141f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 14285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 14308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 144260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 145bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 146bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 147bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 148eb99356a0548684a501766e6a524529ab93304c8Romain Guy 149eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->height = height; 150eb99356a0548684a501766e6a524529ab93304c8Romain Guy mFirstSnapshot->viewport.set(0, 0, width, height); 151e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 152e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 15385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1548aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1558aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 1568fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 157f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 158fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 159fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 160d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 16108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 162bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 16308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 16408ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 165bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 16608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 167c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 168f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 169b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 170bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 171bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 172b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guyvoid OpenGLRenderer::finish() { 173b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#if DEBUG_OPENGL 174b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy GLenum status = GL_NO_ERROR; 175b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy while ((status = glGetError()) != GL_NO_ERROR) { 176b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy LOGD("GL error from OpenGLRenderer: 0x%x", status); 177b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 178b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy#endif 179b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy} 180b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy 181da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 182da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 183da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 184da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 185da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 186da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 187da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 188da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 189da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 190da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 191eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 192da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 193da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 194da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy setScissorFromClip(); 195da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 196f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glDisable(GL_DITHER); 197f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 198f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, 0); 199f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 200da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.blend) { 201da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_BLEND); 202da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 203f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBlendEquation(GL_FUNC_ADD); 204da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } else { 205da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glDisable(GL_BLEND); 206da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 207da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 208da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 209f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 210f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 211f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 212f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 2147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 215bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 216bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 217bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 2188aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 221bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2222542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2232542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2247ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 225bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 226bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 227bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2288fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 229bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2308fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2312542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2327ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 233bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 234bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2358aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 2368aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 2378fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 238bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 239bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 240bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2417ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 242bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 243eb99356a0548684a501766e6a524529ab93304c8Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 244bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 245bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2467ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 247bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 248eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (restoreOrtho) { 249eb99356a0548684a501766e6a524529ab93304c8Romain Guy Rect& r = previous->viewport; 250eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 251eb99356a0548684a501766e6a524529ab93304c8Romain Guy mOrthoMatrix.load(current->orthoMatrix); 252eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 253eb99356a0548684a501766e6a524529ab93304c8Romain Guy 2548b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2558b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2568b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 257bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 258d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 259d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 260bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2612542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 2622542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setScissorFromClip(); 2638fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2642542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2652542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2675cbbce535744b89df5ecea95de21ee3733298260Romain Guy 268f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 269bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 270bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 271bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 272bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 273bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 274eb99356a0548684a501766e6a524529ab93304c8Romain Guy const GLuint previousFbo = mSnapshot->fbo; 275eb99356a0548684a501766e6a524529ab93304c8Romain Guy const int count = saveSnapshot(flags); 276d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 277d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 278d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 279d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 280d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 282a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 283a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 284a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 285a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 286a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 287a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 288a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 289a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 290d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 291d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 292d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 293d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 294d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 295eb99356a0548684a501766e6a524529ab93304c8Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags, previousFbo); 296d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 297d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 298bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 299bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 300bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 301bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 3028aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy if (alpha == 0xff) { 3038aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 3048b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 3058aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 3068aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 3078aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 3088b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 309d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 310bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3111c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 3121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Layers are viewed by Skia are slightly different than layers in image editing 3131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * programs (for instance.) When a layer is created, previously created layers 3141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * and the frame buffer still receive every drawing command. For instance, if a 3151c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * layer is created and a shape intersecting the bounds of the layers and the 3161c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * framebuffer is draw, the shape will be drawn on both (unless the layer was 3171c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 3181c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3191c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * A way to implement layers is to create an FBO for each layer, backed by an RGBA 3201c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * texture. Unfortunately, this is inefficient as it requires every primitive to 3211c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be drawn n + 1 times, where n is the number of active layers. In practice this 3221c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * means, for every primitive: 3231c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Switch active frame buffer 3241c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Change viewport, clip and projection matrix 3251c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Issue the drawing 3261c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3271c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Switching rendering target n + 1 times per drawn primitive is extremely costly. 3281c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To avoid this, layers are implemented in a different way here. 3291c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3301c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * This implementation relies on the frame buffer being at least RGBA 8888. When 3311c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * a layer is created, only a texture is created, not an FBO. The content of the 3321c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer contained within the layer's bounds is copied into this texture 33387a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame 3341c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * buffer and drawing continues as normal. This technique therefore treats the 3351c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer as a scratch buffer for the layers. 3361c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3371c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To compose the layers back onto the frame buffer, each layer texture 3381c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * (containing the original frame buffer data) is drawn as a simple quad over 3391c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * the frame buffer. The trick is that the quad is set as the composition 3401c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * destination in the blending equation, and the frame buffer becomes the source 3411c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * of the composition. 3421c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3431c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Drawing layers with an alpha value requires an extra step before composition. 3441c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * An empty quad is drawn over the layer's region in the frame buffer. This quad 3451c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 3461c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * quad is used to multiply the colors in the frame buffer. This is achieved by 3471c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * changing the GL blend functions for the GL_FUNC_ADD blend equation to 3481c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * GL_ZERO, GL_SRC_ALPHA. 3491c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3501c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Because glCopyTexImage2D() can be slow, an alternative implementation might 3511c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be use to draw a single clipped layer. The implementation described above 3521c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is correct in every case. 35387a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * 35487a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * (1) The frame buffer is actually not cleared right away. To allow the GPU 35587a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * to potentially optimize series of calls to glCopyTexImage2D, the frame 35687a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * buffer is left untouched until the first drawing operation. Only when 35787a76578f76f4a6bceb187da6b7a01899ca0d85aRomain Guy * something actually gets drawn are the layers regions cleared. 3581c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 359d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 360eb99356a0548684a501766e6a524529ab93304c8Romain Guy float right, float bottom, int alpha, SkXfermode::Mode mode, 361eb99356a0548684a501766e6a524529ab93304c8Romain Guy int flags, GLuint previousFbo) { 362eb99356a0548684a501766e6a524529ab93304c8Romain Guy LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top); 363fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 364dda570201ac851dd85af3861f7e575721d3345daRomain Guy 365eb99356a0548684a501766e6a524529ab93304c8Romain Guy const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag; 366eb99356a0548684a501766e6a524529ab93304c8Romain Guy 367f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Window coordinates of the layer 3688aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 369eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (!fboLayer) { 370eb99356a0548684a501766e6a524529ab93304c8Romain Guy mSnapshot->transform->mapRect(bounds); 371eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Layers only make sense if they are in the framebuffer's bounds 372eb99356a0548684a501766e6a524529ab93304c8Romain Guy bounds.intersect(*mSnapshot->clipRect); 373eb99356a0548684a501766e6a524529ab93304c8Romain Guy bounds.snapToPixelBoundaries(); 374eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 375bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy 376b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy if (bounds.isEmpty() || bounds.getWidth() > mMaxTextureSize || 377b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy bounds.getHeight() > mMaxTextureSize) { 378b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy return false; 379b025b9c8b4efefadb01937db61a1f8ee7d2452bfRomain Guy } 380dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3810bb5667b4ef91fefd0500fae0186789d15d54e0eRomain Guy glActiveTexture(GL_TEXTURE0); 3820bb5667b4ef91fefd0500fae0186789d15d54e0eRomain Guy 3838411f336c786379c5a03106e9ed3bc8622b579a5Romain Guy LayerSize size(bounds.getWidth(), bounds.getHeight()); 384f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy Layer* layer = mCaches.layerCache.get(size); 385f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 386f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 387bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 388bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 389dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 390f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy layer->alpha = alpha; 3918aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 392dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3938fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 3948fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 395dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 3961d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 397eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 398eb99356a0548684a501766e6a524529ab93304c8Romain Guy layer->fbo = mCaches.fboCache.get(); 39938c85b907a478af96d71b9a5df5a2066b8475311Romain Guy 400eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->flags |= Snapshot::kFlagIsFboLayer; 401eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->fbo = layer->fbo; 402eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 403eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->resetClip(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 404eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 405eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->height = bounds.getHeight(); 406eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 407eb99356a0548684a501766e6a524529ab93304c8Romain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 4080bb5667b4ef91fefd0500fae0186789d15d54e0eRomain Guy 4090bb5667b4ef91fefd0500fae0186789d15d54e0eRomain Guy setScissorFromClip(); 410f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 411eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Bind texture to FBO 412eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 413eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 414eb99356a0548684a501766e6a524529ab93304c8Romain Guy 415eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Initialize the texture if needed 416eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (layer->empty) { 417eb99356a0548684a501766e6a524529ab93304c8Romain Guy layer->empty = false; 418eb99356a0548684a501766e6a524529ab93304c8Romain Guy glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, size.width, size.height, 0, 419eb99356a0548684a501766e6a524529ab93304c8Romain Guy GL_RGBA, GL_UNSIGNED_BYTE, NULL); 420eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 421eb99356a0548684a501766e6a524529ab93304c8Romain Guy 422eb99356a0548684a501766e6a524529ab93304c8Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 423eb99356a0548684a501766e6a524529ab93304c8Romain Guy layer->texture, 0); 424eb99356a0548684a501766e6a524529ab93304c8Romain Guy 425eb99356a0548684a501766e6a524529ab93304c8Romain Guy GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); 426eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (status != GL_FRAMEBUFFER_COMPLETE) { 427eb99356a0548684a501766e6a524529ab93304c8Romain Guy LOGE("Framebuffer incomplete (GL error code 0x%x)", status); 428eb99356a0548684a501766e6a524529ab93304c8Romain Guy 429eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 430eb99356a0548684a501766e6a524529ab93304c8Romain Guy glDeleteTextures(1, &layer->texture); 431eb99356a0548684a501766e6a524529ab93304c8Romain Guy mCaches.fboCache.put(layer->fbo); 432eb99356a0548684a501766e6a524529ab93304c8Romain Guy 433eb99356a0548684a501766e6a524529ab93304c8Romain Guy delete layer; 434eb99356a0548684a501766e6a524529ab93304c8Romain Guy 435eb99356a0548684a501766e6a524529ab93304c8Romain Guy return false; 436eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 437eb99356a0548684a501766e6a524529ab93304c8Romain Guy 438eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Clear the FBO 439eb99356a0548684a501766e6a524529ab93304c8Romain Guy glDisable(GL_SCISSOR_TEST); 440eb99356a0548684a501766e6a524529ab93304c8Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 441eb99356a0548684a501766e6a524529ab93304c8Romain Guy glClear(GL_COLOR_BUFFER_BIT); 442eb99356a0548684a501766e6a524529ab93304c8Romain Guy glEnable(GL_SCISSOR_TEST); 443eb99356a0548684a501766e6a524529ab93304c8Romain Guy 444eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Change the ortho projection 445eb99356a0548684a501766e6a524529ab93304c8Romain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 446eb99356a0548684a501766e6a524529ab93304c8Romain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 447eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 448eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Copy the framebuffer into the layer 449eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 450eb99356a0548684a501766e6a524529ab93304c8Romain Guy 451eb99356a0548684a501766e6a524529ab93304c8Romain Guy // TODO: Workaround for b/3054204 452eb99356a0548684a501766e6a524529ab93304c8Romain Guy glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bounds.left, mHeight - bounds.bottom, 453eb99356a0548684a501766e6a524529ab93304c8Romain Guy bounds.getWidth(), bounds.getHeight(), 0); 454eb99356a0548684a501766e6a524529ab93304c8Romain Guy 455eb99356a0548684a501766e6a524529ab93304c8Romain Guy // TODO: Waiting for b/3054204 to be fixed 456eb99356a0548684a501766e6a524529ab93304c8Romain Guy // if (layer->empty) { 457eb99356a0548684a501766e6a524529ab93304c8Romain Guy // glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bounds.left, mHeight - bounds.bottom, 458eb99356a0548684a501766e6a524529ab93304c8Romain Guy // bounds.getWidth(), bounds.getHeight(), 0); 459eb99356a0548684a501766e6a524529ab93304c8Romain Guy // layer->empty = false; 460eb99356a0548684a501766e6a524529ab93304c8Romain Guy // } else { 461eb99356a0548684a501766e6a524529ab93304c8Romain Guy // glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bounds.left, mHeight - bounds.bottom, 462eb99356a0548684a501766e6a524529ab93304c8Romain Guy // bounds.getWidth(), bounds.getHeight()); 463eb99356a0548684a501766e6a524529ab93304c8Romain Guy // } 464eb99356a0548684a501766e6a524529ab93304c8Romain Guy 465eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Enqueue the buffer coordinates to clear the corresponding region later 466eb99356a0548684a501766e6a524529ab93304c8Romain Guy mLayers.push(new Rect(bounds)); 467eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 468f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 469d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 470bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 471bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 4721c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 4731c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Read the documentation of createLayer() before doing anything in this method. 4741c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 4751d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 4761d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 4771d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 4781d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 4791d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 4801d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 481eb99356a0548684a501766e6a524529ab93304c8Romain Guy const bool fboLayer = current->flags & SkCanvas::kClipToLayer_SaveFlag; 482eb99356a0548684a501766e6a524529ab93304c8Romain Guy 483eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 484eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Unbind current FBO and restore previous one 485eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 486eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 487eb99356a0548684a501766e6a524529ab93304c8Romain Guy 4881d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Restore the clip from the previous snapshot 4898aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *previous->clipRect; 490eb99356a0548684a501766e6a524529ab93304c8Romain Guy glScissor(clip.left, previous->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4911d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 4921d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 4931d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 4941d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 495eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (!fboLayer && layer->alpha < 255) { 496f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawColorRect(rect.left, rect.top, rect.right, rect.bottom, 4971c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy layer->alpha << 24, SkXfermode::kDstIn_Mode, true); 498f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 499f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 500f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Layers are already drawn with a top-left origin, don't flip the texture 5018b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 5028b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 503eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 504eb99356a0548684a501766e6a524529ab93304c8Romain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 505eb99356a0548684a501766e6a524529ab93304c8Romain Guy layer->texture, layer->alpha / 255.0f, layer->mode, layer->blend); 506eb99356a0548684a501766e6a524529ab93304c8Romain Guy } else { 507eb99356a0548684a501766e6a524529ab93304c8Romain Guy drawTextureMesh(rect.left, rect.top, rect.right, rect.bottom, layer->texture, 508eb99356a0548684a501766e6a524529ab93304c8Romain Guy 1.0f, layer->mode, layer->blend, &mMeshVertices[0].position[0], 509eb99356a0548684a501766e6a524529ab93304c8Romain Guy &mMeshVertices[0].texture[0], GL_TRIANGLE_STRIP, gMeshCount, true, true); 510eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 5111d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5128b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 5138b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 514eb99356a0548684a501766e6a524529ab93304c8Romain Guy if (fboLayer) { 515eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Detach the texture from the FBO 516eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, current->fbo); 517eb99356a0548684a501766e6a524529ab93304c8Romain Guy glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 518eb99356a0548684a501766e6a524529ab93304c8Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 519eb99356a0548684a501766e6a524529ab93304c8Romain Guy 520eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Put the FBO name back in the cache, if it doesn't fit, it will be destroyed 521eb99356a0548684a501766e6a524529ab93304c8Romain Guy mCaches.fboCache.put(current->fbo); 522eb99356a0548684a501766e6a524529ab93304c8Romain Guy } 523eb99356a0548684a501766e6a524529ab93304c8Romain Guy 5241d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 525eb99356a0548684a501766e6a524529ab93304c8Romain Guy // Failing to add the layer to the cache should happen only if the layer is too large 526fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (!mCaches.layerCache.put(size, layer)) { 5271d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 5281d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 5291d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 5301d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 5311d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 5321d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 5338694230ff25fa0a60e480d424843e56b718f0516Romain Guyvoid OpenGLRenderer::clearLayerRegions() { 5348694230ff25fa0a60e480d424843e56b718f0516Romain Guy if (mLayers.size() == 0) return; 5358694230ff25fa0a60e480d424843e56b718f0516Romain Guy 5368694230ff25fa0a60e480d424843e56b718f0516Romain Guy for (uint32_t i = 0; i < mLayers.size(); i++) { 5378694230ff25fa0a60e480d424843e56b718f0516Romain Guy Rect* bounds = mLayers.itemAt(i); 5388694230ff25fa0a60e480d424843e56b718f0516Romain Guy 5398694230ff25fa0a60e480d424843e56b718f0516Romain Guy // Clear the framebuffer where the layer will draw 5408694230ff25fa0a60e480d424843e56b718f0516Romain Guy glScissor(bounds->left, mHeight - bounds->bottom, 5418694230ff25fa0a60e480d424843e56b718f0516Romain Guy bounds->getWidth(), bounds->getHeight()); 5428694230ff25fa0a60e480d424843e56b718f0516Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 5438694230ff25fa0a60e480d424843e56b718f0516Romain Guy glClear(GL_COLOR_BUFFER_BIT); 5448694230ff25fa0a60e480d424843e56b718f0516Romain Guy 5458694230ff25fa0a60e480d424843e56b718f0516Romain Guy delete bounds; 5468694230ff25fa0a60e480d424843e56b718f0516Romain Guy } 5478694230ff25fa0a60e480d424843e56b718f0516Romain Guy mLayers.clear(); 5488694230ff25fa0a60e480d424843e56b718f0516Romain Guy 5498694230ff25fa0a60e480d424843e56b718f0516Romain Guy // Restore the clip 5508694230ff25fa0a60e480d424843e56b718f0516Romain Guy setScissorFromClip(); 5518694230ff25fa0a60e480d424843e56b718f0516Romain Guy} 5528694230ff25fa0a60e480d424843e56b718f0516Romain Guy 553bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 554f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 555f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 556f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 557f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 5588aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 559f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 560f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 561f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 5628aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 563f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 564f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 565f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 5668aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 567f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 568f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 569f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 5708aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 571f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 572f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 573f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 5748aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 575f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 576f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 577f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 5787ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 5798aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->multiply(m); 580f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 581f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 582f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 583f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 584f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 585f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 586bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 5878aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 588eb99356a0548684a501766e6a524529ab93304c8Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 5899d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 5909d5316e3f56d138504565ff311145ac01621dff4Romain Guy 5919d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 592079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 593bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 594bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 595c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 5961d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 5978aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 5988aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->intersects(r); 599c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 600c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 601079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 602079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 6037ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 6047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 6057ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 6068aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 607e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 608e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 609f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 610f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 611f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 612f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 613c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 6146926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 6156926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 6166926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 6176926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 6186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 6196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 6206926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 62161c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 622fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 6239cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 62422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 62522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 6266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 6278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 6288ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 629f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 630f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 631f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 632f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 633f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 6346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 6356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 6366926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 6376926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 63861c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 639fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 6409cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 64122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 64222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 64382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 644f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 645f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 6468ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 6478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 6488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 649f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 6506926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 6516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 6526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 6536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 65461c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 655fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 6569cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 65722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 6588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 6598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 6608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 661c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 6628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 6638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 6648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 6658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 666c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 6678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 6688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 66982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 6708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 6718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 672ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 673ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 6744aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int32_t* yDivs, 6754aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guy uint32_t width, uint32_t height, float left, float top, float right, float bottom, 6764aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guy const SkPaint* paint) { 6776926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 6786926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 6796926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 6806926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 68161c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 682fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 6839cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 68422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 685f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 686f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 687f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 688f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 689f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 6904aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guy Patch* mesh = mCaches.patchCache.get(width, height); 691759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mesh->updateVertices(bitmap->width(), bitmap->height(),left, top, right, bottom, 6924aa90573bbf86db0d33a3a790c5dbd0d93b95cfeRomain Guy xDivs, yDivs, width, height); 693f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 694f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 695f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 696a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 697a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 6986820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy &mesh->vertices[0].texture[0], GL_TRIANGLES, mesh->verticesCount); 699f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 700f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 701759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid OpenGLRenderer::drawLines(float* points, int count, const SkPaint* paint) { 702759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy int alpha; 703759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode; 704759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy getAlphaAndMode(paint, &alpha, &mode); 705759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 706759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy uint32_t color = paint->getColor(); 707759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat a = alpha / 255.0f; 708759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 709759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 710759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 711759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 712c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const bool isAA = paint->isAntiAlias(); 713c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 714c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy GLuint textureUnit = 0; 71529d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy setupTextureAlpha8(mCaches.line.getTexture(), 0, 0, textureUnit, 0.0f, 0.0f, r, g, b, a, 71629d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mode, false, true, mCaches.line.getVertices(), mCaches.line.getTexCoords()); 717c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 718c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy setupColorRect(0.0f, 0.0f, 1.0f, 1.0f, r, g, b, a, mode, false); 719c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 720c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 721c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const float strokeWidth = paint->getStrokeWidth(); 72229d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy const GLsizei elementsCount = isAA ? mCaches.line.getElementsCount() : gMeshCount; 723c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy const GLenum drawMode = isAA ? GL_TRIANGLES : GL_TRIANGLE_STRIP; 724759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 725759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy for (int i = 0; i < count; i += 4) { 726759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float tx = 0.0f; 727759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy float ty = 0.0f; 728759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 729c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (isAA) { 73029d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mCaches.line.update(points[i], points[i + 1], points[i + 2], points[i + 3], 731c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy strokeWidth, tx, ty); 732c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } else { 733b5ab4173e0927e4668a45298c9900cd8007584e1Romain Guy ty = strokeWidth <= 1.0f ? 0.0f : -strokeWidth * 0.5f; 734c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 735759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 736759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dx = points[i + 2] - points[i]; 737759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float dy = points[i + 3] - points[i + 1]; 738759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float mag = sqrtf(dx * dx + dy * dy); 739759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const float angle = acos(dx / mag); 740759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 741759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.loadTranslate(points[i], points[i + 1], 0.0f); 742759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (angle > MIN_ANGLE || angle < -MIN_ANGLE) { 743759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.rotate(angle * RAD_TO_DEG, 0.0f, 0.0f, 1.0f); 744759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 745759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mModelView.translate(tx, ty, 0.0f); 746c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy if (!isAA) { 74729d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy float length = mCaches.line.getLength(points[i], points[i + 1], 74829d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy points[i + 2], points[i + 3]); 749c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy mModelView.scale(length, strokeWidth, 1.0f); 750c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy } 751759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 752759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 753759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy if (mShader) { 754759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mShader->updateTransforms(mCaches.currentProgram, mModelView, *mSnapshot); 755759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 756759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 757c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(drawMode, 0, elementsCount); 758759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy } 759759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 76029d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy if (isAA) { 76129d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 76229d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy } 763759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 764759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 76585bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 7668aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 7673d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 768c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 7699d5316e3f56d138504565ff311145ac01621dff4Romain Guy 770bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 7716926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 7726926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 7736926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 7746926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 775026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 776a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 777a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 778a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 779a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 780a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 781a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 782a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 783a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 784026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 785026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 786026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 787026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 788026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 789d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 790026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 791026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 792026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 793026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 794c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 7959d5316e3f56d138504565ff311145ac01621dff4Romain Guy 796e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 797e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 798f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 799e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 800e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 801e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 802f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy paint->setAntiAlias(true); 803e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 804a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 805e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 806e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 807e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 808e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 809e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 810e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 811e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 812e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 813e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 814e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 815e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 816e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 817e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 818694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 819694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 820694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 821694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 8222542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 8232542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 8242542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 8252542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 8262542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 8272542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 828b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 829b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 830fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 831e2d345ea67e2960b37bfdc0fc8626d1bfa747404Romain Guy 8321e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 8331e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 834b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 835fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 8361e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 8371e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 8380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8392542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 8400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 8420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 843fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 8441e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 8451e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 84606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 847db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 84806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 849e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy // Assume that the modelView matrix does not force scales, rotates, etc. 850e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const bool linearFilter = mSnapshot->transform->changesBounds(); 851e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy setupTextureAlpha8(fontRenderer.getTexture(linearFilter), 0, 0, textureUnit, 852e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy x, y, r, g, b, a, mode, false, true); 85306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 85409147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 8558694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 856b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 857694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 858694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 859fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 860a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 8610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 862694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 863694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 8647fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 8657fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 8667fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 8677fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 868fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 8699cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 87022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 8717fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 8728b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 8738b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 8748b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 8758b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 8768b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 8778b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 8788b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 8797fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 8807fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 8817fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 8827fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 8837fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 8847fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 8857fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 8867fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 8877fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 8887fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 8890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 8900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8918694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 8928694230ff25fa0a60e480d424843e56b718f0516Romain Guy 8930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 8940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 895fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 8967fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 8977fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 8986926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 899d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 900d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 901d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 902d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 90306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 90406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 90506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 90606f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 90706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 90806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 909fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 91006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 9117fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 9127fac2e18339f765320d759e8d4c090f92431959eRomain Guy 913d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 914db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 915db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 916db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 917db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 918db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 919db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 920db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 921db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 922db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 923db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 924db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 925db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 9261e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 9271e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 9281e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 9291e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 9301e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 9311e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 9321e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 9331e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 9341e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 9351e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 9361e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 9371e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 9381e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 9391e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 9401e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 9411e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 9426926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 9436926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 9446926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 9450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 9462542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 9470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 9480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 9490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 9502542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 9512542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 9520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 9530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 9540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 9550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 9560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 9570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 9580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 9590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 9600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 9610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 9620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 9630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 964759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy x, y, r, g, b, a, mode, transforms, applyFilters, 965759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0]); 9660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 9670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 9680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 9690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 9700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 971759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy setupTextureAlpha8(texture, width, height, textureUnit, 972759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy x, y, r, g, b, a, mode, transforms, applyFilters, 973759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0]); 974759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 975759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 976759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 977759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 978759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters, 979759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy GLvoid* vertices, GLvoid* texCoords) { 9800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 9810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 9820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 9830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 9840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 9850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 9860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 9870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->describe(description, mExtensions); 9880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 9890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 9900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->describe(description, mExtensions); 9910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 9920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 9930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 994a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 995a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(true, mode, description); 996a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 9970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 998fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 9990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 1001fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 10020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1003fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 10040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 10050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes 1007fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1008759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy gMeshStride, vertices); 10090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 1010759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy gMeshStride, texCoords); 10110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 10130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 10140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 10150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 10160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 10170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 10180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10198aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 1020fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 10210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 10230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 10240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 10250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 1026fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 10270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 1029fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 10300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 10330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1034f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy// Same values used by Skia 10350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 10360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 10370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 10380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 10400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 10410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 10420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 10430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 10440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 10450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 10460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 10470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 10480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 10510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 10520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 10530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 10540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 10550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 10560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 10570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 10580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 10590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 10600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 1063e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float textSize = paint->getTextSize(); 1064e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float strokeWidth = textSize * kStdUnderline_Thickness; 10650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1066e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const float left = x - offsetX; 10670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 1068e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1069e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy const int pointsCount = 4 * (flags & SkPaint::kStrikeThruText_Flag ? 2 : 1); 1070e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy float points[pointsCount]; 1071e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy int currentPoint = 0; 10720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 10740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 1075e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1076e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1077e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1078e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 10790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 10810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 10820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 1083e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left; 1084e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 1085e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = left + underlineWidth; 1086e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy points[currentPoint++] = top; 10870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 1088e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1089e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy SkPaint linesPaint(*paint); 1090e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy linesPaint.setStrokeWidth(strokeWidth); 1091e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy 1092e20ecbd12d26467754a7770d44bcce2ea92335efRomain Guy drawLines(&points[0], pointsCount, &linesPaint); 10930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 10950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 10960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 1097026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 10981c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 10998694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 11008694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1101d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 110206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1103d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 1104d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1105d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 1106d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 1107026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 1108d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 1109c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 1110c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 1111c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 1112c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 1113c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy setupColorRect(left, top, right, bottom, r, g, b, a, mode, ignoreTransform); 1114c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1115c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy // Draw the mesh 1116c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1117c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy} 1118c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy 1119c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guyvoid OpenGLRenderer::setupColorRect(float left, float top, float right, float bottom, 1120c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy float r, float g, float b, float a, SkXfermode::Mode mode, bool ignoreTransform) { 112106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 11229d5316e3f56d138504565ff311145ac01621dff4Romain Guy 112306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 1124889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 112506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 112606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 1127c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 1128db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1129db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 1130db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1131c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 11321c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy // Setup the blending mode 1133c95c8d6bf8fda5c4e8ebd0033b789be7868e6e07Romain Guy chooseBlending(a < 1.0f || (mShader && mShader->blend()), mode, description); 1134a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 113506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 1136fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1137c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 113806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 1139fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1140ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 1141c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 114206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 1143889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 1144889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 114506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 11468aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 1147889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 114806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 1149fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 1150889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 1151fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 1152d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 115306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 115406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 1155fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 1156d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 1157db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1158fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1159db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1160d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 1161d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 116282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 1163a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 116482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 116582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 116682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 116782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 11686820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, 11696820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy texture->blend, &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 11706820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 117185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 117285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 1173bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 1174a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 1175a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 11766820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], 11776820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GL_TRIANGLE_STRIP, gMeshCount); 1178f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 1179f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 1180f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 1181a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 11826820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount, 1183f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy bool swapSrcDst, bool ignoreTransform) { 11848694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 11858694230ff25fa0a60e480d424843e56b718f0516Romain Guy 1186889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 1187889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 1188db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1189db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 1190db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1191889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 1192bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 1193bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 1194bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1195f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy chooseBlending(blend || alpha < 1.0f, mode, description, swapSrcDst); 1196a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1197fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 1198f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (!ignoreTransform) { 1199f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 1200f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } else { 1201f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mat4 m; 1202f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, m); 1203f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 1204bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1205889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 120606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 1207fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 1208c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 1209a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 1210fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, alpha, alpha, alpha, alpha); 1211bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1212889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 1213fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 1214889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 1215fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 1216ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 1217889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 1218bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1219db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 1220db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1221fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1222db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1223db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 12246820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy glDrawArrays(drawMode, 0, elementsCount); 1225889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 122682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 122782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1228a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 1229f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy ProgramDescription& description, bool swapSrcDst) { 123082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 123182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 1232a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 1233a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 1234a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 1235a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 123682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1237f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 1238f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 123982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1240a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 1241a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 1242a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 1243a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 1244a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1245a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1246a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 1247a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 1248a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 1249a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mExtensions.hasFramebufferFetch()) { 1250a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 1251f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy description.swapSrcDst = swapSrcDst; 1252a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1253a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1254a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 1255a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 1256a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1257a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 125882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1259fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 126082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 126182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1262fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 1263bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 1264bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1265889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 1266d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 1267fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 1268d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 1269fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 12706926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 1271260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 12726926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 1273260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 1274260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 1275026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 1276ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 127782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 127882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 127982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 128082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 12818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 12828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 12838ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 12848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 1285a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 1286a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 1287a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1288a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1289a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 1290a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1291a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1292a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 12938ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 12948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 12958ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 12968ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 12978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 12988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 12998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 13008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 13018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 13028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 13038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 13048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 13058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1306026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1307026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1308a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 1309a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode == NULL) { 1310a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return SkXfermode::kSrcOver_Mode; 1311a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1312a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return mode->fMode; 1313a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 1314a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1315889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 1316889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 1317ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 1318a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 1319a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 1320a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1321a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 13229d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1323e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1324