OpenGLRenderer.cpp revision 1c740bce8a762f02b5283045a0e2de7c8fb41277
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> 2785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 2885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy#include "OpenGLRenderer.h" 29e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 30e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guynamespace android { 319d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 329d5316e3f56d138504565ff311145ac01621dff4Romain Guy 339d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 349d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Defines 359d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 369d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#define REQUIRED_TEXTURE_UNITS_COUNT 3 3806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 39dda570201ac851dd85af3861f7e575721d3345daRomain Guy// Generates simple and textured vertices 40bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy#define FV(x, y, u, v) { { x, y }, { u, v } } 419d5316e3f56d138504565ff311145ac01621dff4Romain Guy 429d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 439d5316e3f56d138504565ff311145ac01621dff4Romain Guy// Globals 449d5316e3f56d138504565ff311145ac01621dff4Romain Guy/////////////////////////////////////////////////////////////////////////////// 459d5316e3f56d138504565ff311145ac01621dff4Romain Guy 46026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// This array is never used directly but used as a memcpy source in the 47026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// OpenGLRenderer constructor 48ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const TextureVertex gMeshVertices[] = { 49c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 0.0f, 0.0f, 0.0f), 50c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 0.0f, 1.0f, 0.0f), 51c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(0.0f, 1.0f, 0.0f, 1.0f), 52c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy FV(1.0f, 1.0f, 1.0f, 1.0f) 53bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy}; 54ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshStride = sizeof(TextureVertex); 55ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guystatic const GLsizei gMeshCount = 4; 56026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 57889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy/** 58889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy * Structure mapping Skia xfermodes to OpenGL blending factors. 59889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy */ 60889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystruct Blender { 61889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy SkXfermode::Mode mode; 62889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum src; 63889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy GLenum dst; 64889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy}; // struct Blender 65889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 66026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// In this array, the index of each Blender equals the value of the first 67026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode] 68026c5e16704e817cac7d9c382914c947e34f87e0Romain Guystatic const Blender gBlends[] = { 69026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 70026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO }, 71026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDst_Mode, GL_ZERO, GL_ONE }, 72026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 73026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 74026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO }, 75026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 76026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 77026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 78026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 79026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 80026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 81026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy}; 82e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 83f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guystatic const Blender gBlendsSwap[] = { 84f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kClear_Mode, GL_ZERO, GL_ZERO }, 85f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE }, 86f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDst_Mode, GL_ONE, GL_ZERO }, 87f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE }, 88f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA }, 89f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA }, 90f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO }, 91f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA }, 92f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO }, 93f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA }, 94f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA }, 95f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy { SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA } 96f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy}; 97f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 98889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 9906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 10006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 10106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 102d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 103d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 104f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 105f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 106f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 107f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 108fb8b763f762ae21923c58d64caa729b012f40e05Romain GuyOpenGLRenderer::OpenGLRenderer(): mCaches(Caches::getInstance()) { 10985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 1109d5316e3f56d138504565ff311145ac01621dff4Romain Guy 11106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 112db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 1131e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 114026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 115ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 116ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 117ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 118ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy 119ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy GLint maxTextureUnits; 120ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits); 121ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) { 122889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT); 123889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 124e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 125e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 12685bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 12785bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 128e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 129e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 130f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 131f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 132f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 133f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 13485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 13508ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 136260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 137bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 138bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 139bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 140e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 141e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 14285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1438aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1448aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 1458fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 146f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 147fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 148fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 149d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 15008ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 151bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 15208ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 15308ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 154bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 15508ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 156c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 157f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 158b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 159bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 160bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 161da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 162da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 163da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 164da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 165da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 166da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 167da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 168da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 169da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 170da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 171f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glViewport(0, 0, mWidth, mHeight); 172da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 173da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 174da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy setScissorFromClip(); 175da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 176f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glDisable(GL_DITHER); 177f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 178f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, 0); 179f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 180da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.blend) { 181da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_BLEND); 182da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 183f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBlendEquation(GL_FUNC_ADD); 184da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } else { 185da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glDisable(GL_BLEND); 186da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 187da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 188da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 189f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 190f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 191f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 192f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 193bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1947ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 196bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 197bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1988aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 200bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 2022542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 2032542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2047ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 206bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 207bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 2088fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 209bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2108fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 2112542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 2127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 213bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 214bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 2158aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 2168aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 2178fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 218bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 219bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 220bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2217ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 222bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 223bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 224bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2257ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 226bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2278b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2288b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2298b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 230bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 231d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 232d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 233bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2342542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 2352542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setScissorFromClip(); 2368fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2372542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2382542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 239d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2405cbbce535744b89df5ecea95de21ee3733298260Romain Guy 241f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 242bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 243bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 244bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 245bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 246bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 2478aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy int count = saveSnapshot(flags); 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 249d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 250d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 251d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 252d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 253d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 254a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 255a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 256a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 257a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 258a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 259a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 260a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 261a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 262d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 263d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 264d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 265d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 266d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 267f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 268d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 269d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 270bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 271bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 272bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 273bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 2748aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy if (alpha == 0xff) { 2758aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 2768b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2778aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 2788aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 2798aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 2808b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 281d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 282bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2831c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 2841c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Layers are viewed by Skia are slightly different than layers in image editing 2851c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * programs (for instance.) When a layer is created, previously created layers 2861c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * and the frame buffer still receive every drawing command. For instance, if a 2871c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * layer is created and a shape intersecting the bounds of the layers and the 2881c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * framebuffer is draw, the shape will be drawn on both (unless the layer was 2891c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * created with the SkCanvas::kClipToLayer_SaveFlag flag.) 2901c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 2911c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * A way to implement layers is to create an FBO for each layer, backed by an RGBA 2921c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * texture. Unfortunately, this is inefficient as it requires every primitive to 2931c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be drawn n + 1 times, where n is the number of active layers. In practice this 2941c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * means, for every primitive: 2951c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Switch active frame buffer 2961c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Change viewport, clip and projection matrix 2971c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * - Issue the drawing 2981c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 2991c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Switching rendering target n + 1 times per drawn primitive is extremely costly. 3001c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To avoid this, layers are implemented in a different way here. 3011c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3021c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * This implementation relies on the frame buffer being at least RGBA 8888. When 3031c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * a layer is created, only a texture is created, not an FBO. The content of the 3041c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer contained within the layer's bounds is copied into this texture 3051c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * using glCopyTexImage2D(). The layer's region is then cleared in the frame 3061c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * buffer and drawing continues as normal. This technique therefore treats the 3071c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * frame buffer as a scratch buffer for the layers. 3081c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3091c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * To compose the layers back onto the frame buffer, each layer texture 3101c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * (containing the original frame buffer data) is drawn as a simple quad over 3111c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * the frame buffer. The trick is that the quad is set as the composition 3121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * destination in the blending equation, and the frame buffer becomes the source 3131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * of the composition. 3141c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3151c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Drawing layers with an alpha value requires an extra step before composition. 3161c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * An empty quad is drawn over the layer's region in the frame buffer. This quad 3171c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the 3181c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * quad is used to multiply the colors in the frame buffer. This is achieved by 3191c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * changing the GL blend functions for the GL_FUNC_ADD blend equation to 3201c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * GL_ZERO, GL_SRC_ALPHA. 3211c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * 3221c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Because glCopyTexImage2D() can be slow, an alternative implementation might 3231c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * be use to draw a single clipped layer. The implementation described above 3241c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * is correct in every case. 3251c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 326d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 327d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 328d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 329fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 330dda570201ac851dd85af3861f7e575721d3345daRomain Guy 331f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Window coordinates of the layer 3328aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 333f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mSnapshot->transform->mapRect(bounds); 3348aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy 3358411f336c786379c5a03106e9ed3bc8622b579a5Romain Guy // Layers only make sense if they are in the framebuffer's bounds 3368411f336c786379c5a03106e9ed3bc8622b579a5Romain Guy bounds.intersect(*mSnapshot->clipRect); 33781ab046a1127bd2ad397e6d1c6f8021b202a97ffRomain Guy if (bounds.isEmpty()) return false; 338dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3398411f336c786379c5a03106e9ed3bc8622b579a5Romain Guy LayerSize size(bounds.getWidth(), bounds.getHeight()); 340f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy Layer* layer = mCaches.layerCache.get(size); 341f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 342f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 343bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 344bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 345dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 346f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy layer->alpha = alpha; 3478aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 348dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3498fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 3508fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 351dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 3521d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 353f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Copy the framebuffer into the layer 354f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glBindTexture(GL_TEXTURE_2D, layer->texture); 355f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bounds.left, mHeight - bounds.bottom, 356f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy bounds.getWidth(), bounds.getHeight(), 0); 357f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 358f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (flags & SkCanvas::kClipToLayer_SaveFlag) { 3598694230ff25fa0a60e480d424843e56b718f0516Romain Guy if (mSnapshot->clipTransformed(bounds)) setScissorFromClip(); 360f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 361f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 3628694230ff25fa0a60e480d424843e56b718f0516Romain Guy // Enqueue the buffer coordinates to clear the corresponding region later 3638694230ff25fa0a60e480d424843e56b718f0516Romain Guy mLayers.push(new Rect(bounds)); 364f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 365d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 366bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 367bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3681c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy/** 3691c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy * Read the documentation of createLayer() before doing anything in this method. 3701c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy */ 3711d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 3721d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 3731d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 3741d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 3751d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3761d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3771d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Restore the clip from the previous snapshot 3788aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *previous->clipRect; 379f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 3801d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3811d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 3821d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 3831d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 384f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (layer->alpha < 255) { 385f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawColorRect(rect.left, rect.top, rect.right, rect.bottom, 3861c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy layer->alpha << 24, SkXfermode::kDstIn_Mode, true); 387f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 388f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 389f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy // Layers are already drawn with a top-left origin, don't flip the texture 3908b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 3918b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 392f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy drawTextureMesh(rect.left, rect.top, rect.right, rect.bottom, layer->texture, 393f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy 1.0f, layer->mode, layer->blend, &mMeshVertices[0].position[0], 394f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy &mMeshVertices[0].texture[0], NULL, 0, true, true); 3951d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3968b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 3978b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3981d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 3991d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Failing to add the layer to the cache should happen only if the 4001d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // layer is too large 401fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (!mCaches.layerCache.put(size, layer)) { 4021d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 4031d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 4041d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 4051d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 4061d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 4071d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 4081d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 4091d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 4108694230ff25fa0a60e480d424843e56b718f0516Romain Guyvoid OpenGLRenderer::clearLayerRegions() { 4118694230ff25fa0a60e480d424843e56b718f0516Romain Guy if (mLayers.size() == 0) return; 4128694230ff25fa0a60e480d424843e56b718f0516Romain Guy 4138694230ff25fa0a60e480d424843e56b718f0516Romain Guy for (uint32_t i = 0; i < mLayers.size(); i++) { 4148694230ff25fa0a60e480d424843e56b718f0516Romain Guy Rect* bounds = mLayers.itemAt(i); 4158694230ff25fa0a60e480d424843e56b718f0516Romain Guy 4168694230ff25fa0a60e480d424843e56b718f0516Romain Guy // Clear the framebuffer where the layer will draw 4178694230ff25fa0a60e480d424843e56b718f0516Romain Guy glScissor(bounds->left, mHeight - bounds->bottom, 4188694230ff25fa0a60e480d424843e56b718f0516Romain Guy bounds->getWidth(), bounds->getHeight()); 4198694230ff25fa0a60e480d424843e56b718f0516Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 4208694230ff25fa0a60e480d424843e56b718f0516Romain Guy glClear(GL_COLOR_BUFFER_BIT); 4218694230ff25fa0a60e480d424843e56b718f0516Romain Guy 4228694230ff25fa0a60e480d424843e56b718f0516Romain Guy delete bounds; 4238694230ff25fa0a60e480d424843e56b718f0516Romain Guy } 4248694230ff25fa0a60e480d424843e56b718f0516Romain Guy mLayers.clear(); 4258694230ff25fa0a60e480d424843e56b718f0516Romain Guy 4268694230ff25fa0a60e480d424843e56b718f0516Romain Guy // Restore the clip 4278694230ff25fa0a60e480d424843e56b718f0516Romain Guy setScissorFromClip(); 4288694230ff25fa0a60e480d424843e56b718f0516Romain Guy} 4298694230ff25fa0a60e480d424843e56b718f0516Romain Guy 430bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 431f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 432f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 433f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 434f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 4358aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 436f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 437f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 438f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 4398aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 440f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 441f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 442f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 4438aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 444f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 445f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 446f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 4478aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 448f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 449f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 450f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 4518aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 452f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 453f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 454f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 4557ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 4568aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->multiply(m); 457f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 458f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 459f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 460f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 461f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 462f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 463bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 4648aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 465f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 4669d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4679d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4689d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 469079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 470bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 471bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 472c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 4731d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 4748aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 4758aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->intersects(r); 476c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 477c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 478079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 479079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4807ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4817ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4827ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 4838aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 484e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 485e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 486f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 487f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 488f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 489f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 490c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4916926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4926926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4946926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4956926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4966926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4976926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 49861c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 499fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 5009cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 50122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 50222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 5036926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 5048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 5058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 506f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 507f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 508f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 509f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 510f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 5116926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 5126926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5136926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5146926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 51561c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 516fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 5179cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 51822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 51922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 52082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 521f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 522f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 5238ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 5248ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 5258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 526f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 5276926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 5286926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5296926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5306926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 53161c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 532fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 5339cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 53422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 5358ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 5378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 538c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 5408ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 5418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 5428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 543c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 5448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 5458ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 54682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 5478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 5488ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 549ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 550ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 551deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 552deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 5536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5546926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5556926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5566926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 55761c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 558fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 5599cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 56022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 561f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 562f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 563f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 564f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 565f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 566fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy Patch* mesh = mCaches.patchCache.get(patch); 567fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 568fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 5698411f336c786379c5a03106e9ed3bc8622b579a5Romain Guy mesh->dump(); 570f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 571f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 572f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 573a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 574a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 57516202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 576f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 577f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 57885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 5798aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 5803d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 581c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5829d5316e3f56d138504565ff311145ac01621dff4Romain Guy 583bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5846926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5856926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5866926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5876926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 588026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 589a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 590a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 591a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 592a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 593a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 594a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 595a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 596a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 597026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 598026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 599026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 600026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 601026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 602d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 603026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 604026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 605026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 606026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 607c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 6089d5316e3f56d138504565ff311145ac01621dff4Romain Guy 609e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 610e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 611f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (text == NULL || count == 0 || (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 612e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 613e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 614f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy paint->setAntiAlias(true); 615e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 616a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 617e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 618e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 619e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 620e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 621e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 622e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 623e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 624e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 625e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 626e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 627e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 628e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 629e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 630694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 631694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 632694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 633694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6342542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 6352542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 6362542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6372542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6382542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6392542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 640b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 641b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 642fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 6431e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 6441e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 645b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 646fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 6471e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 6481e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 6490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6502542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 6510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 654fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 6551e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 6561e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 65706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 658db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 65906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 660b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy setupTextureAlpha8(fontRenderer.getTexture(), 0, 0, textureUnit, x, y, r, g, b, a, 6610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mode, false, true); 66206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 66309147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 6648694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 665b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 666694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 667694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 668fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 669a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 6700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 671694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 672694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6737fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 6747fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 6757fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 6767fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 677fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 6789cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 67922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 6807fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6818b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 6828b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 6838b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6848b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 6858b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 6868b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 6878b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6887fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6897fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6907fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6917fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6927fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6937fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6947fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6957fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6967fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6977fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 6990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7008694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 7018694230ff25fa0a60e480d424843e56b718f0516Romain Guy 7020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 7030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 704fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 7057fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 7067fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 7076926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 708d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 709d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 710d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 711d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 71206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 71306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 71406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 71506f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 71606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 71706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 718fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 71906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 7207fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 7217fac2e18339f765320d759e8d4c090f92431959eRomain Guy 722d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 723db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 724db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 725db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 726db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 727db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 728db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 729db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 730db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 731db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 732db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 733db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 734db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 7351e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 7361e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 7371e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 7381e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 7391e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 7401e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 7411e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 7421e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 7431e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 7441e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 7451e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 7461e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 7471e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 7481e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 7491e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 7501e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 7516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 7526926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 7536926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 7540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 7552542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 7560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 7570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 7580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7592542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 7602542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 7610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 7620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 7630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 7640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 7660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 7670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 7700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 7710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 7720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 7730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy x, y, r, g, b, a, mode, transforms, applyFilters); 7740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 7770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 7780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 7790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 7800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 7810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 7820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 7830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 7860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->describe(description, mExtensions); 7870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 7890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->describe(description, mExtensions); 7900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 793a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 794a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(true, mode, description); 795a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 7960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 797fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 7980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 800fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 8010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 802fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 8030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 8040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes 806fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 8070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].position[0]); 8080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 8090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].texture[0]); 8100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 8120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 8130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 8140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 8150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 8160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 8170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8188aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 819fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 8200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 8220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 8230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 8240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 825fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 8260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 828fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 8290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 8320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 833f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy// Same values used by Skia 8340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 8350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 8360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 8370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 8390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 8400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 8410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 8420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 8430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 8440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 8450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 8460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 8470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 8500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 8510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 8520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 8530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 8550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 8560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 8580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 8620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float textSize = paint->getTextSize(); 8630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float height = textSize * kStdUnderline_Thickness; 8640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float left = x - offsetX; 8660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 8670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float right = left + underlineWidth; 8680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float bottom = 0.0f; 8690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 8710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 8720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 8770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 8780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 8840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 885026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 8861c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 8878694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 8888694230ff25fa0a60e480d424843e56b718f0516Romain Guy 889d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 89006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 891d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 892d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 893d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 894d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 895026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 896d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 897c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 898c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 899c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 900c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 90106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 9029d5316e3f56d138504565ff311145ac01621dff4Romain Guy 90306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 904889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 90506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 90606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 907c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 908db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 909db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 910db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 911c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 9121c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy // Setup the blending mode 9131c740bce8a762f02b5283045a0e2de7c8fb41277Romain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode, description); 914a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 91506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 916fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 917c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 91806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 919fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 920ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 921c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 92206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 923889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 924889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 92506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 9268aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 927889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 92806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 929fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 930889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 931fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 932d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 93306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 93406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 935fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 936d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 937db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 938fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 939db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 940d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 94106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 942889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 943d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 944d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 94582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 946a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 94782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 94882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 94982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 95082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 951a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 952ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 95385bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 95485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 955bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 956a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 957a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 958ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 959f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 960f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 961f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 962a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 963f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount, 964f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy bool swapSrcDst, bool ignoreTransform) { 9658694230ff25fa0a60e480d424843e56b718f0516Romain Guy clearLayerRegions(); 9668694230ff25fa0a60e480d424843e56b718f0516Romain Guy 967889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 968889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 969db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 970db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 971db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 972889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 973bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 974bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 975bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 976f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy chooseBlending(blend || alpha < 1.0f, mode, description, swapSrcDst); 977a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 978fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 979f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy if (!ignoreTransform) { 980f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 981f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } else { 982f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mat4 m; 983f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, m); 984f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy } 985bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 986889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 98706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 988fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 989c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 990a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 991fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, alpha, alpha, alpha, alpha); 992bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 993889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 994fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 995889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 996fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 997ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 998889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 999bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1000db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 1001db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 1002fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 1003db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 1004db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 1005f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 1006ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 1007f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 1008f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 1009f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 1010889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 101182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 101282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1013a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 1014f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy ProgramDescription& description, bool swapSrcDst) { 101582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 101682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 1017a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 1018a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 1019a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 1020a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 102182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1022f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src; 1023f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst; 102482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 1025a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 1026a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 1027a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 1028a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 1029a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1030a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1031a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 1032a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 1033a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 1034a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mExtensions.hasFramebufferFetch()) { 1035a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 1036f607bdc167f66b3e7003acaa4736ae46d78c1492Romain Guy description.swapSrcDst = swapSrcDst; 1037a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1038a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1039a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 1040a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 1041a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1042a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 104382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1044fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 104582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 104682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 1047fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 1048bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 1049bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1050889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 1051d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 1052fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 1053d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 1054fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 10556926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 1056260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 10576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 1058260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 1059260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 1060026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 1061ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 106282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 106382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 106482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 106582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 10668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 10678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 10688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 10698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 1070a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 1071a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 1072a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1073a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1074a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 1075a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1076a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1077a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 10788ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10798ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 10808ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 10818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 10828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 10838ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 10848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 10858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 10868ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10878ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 10888ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 10898ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 10908ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1091026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1092026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1093a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 1094a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode == NULL) { 1095a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return SkXfermode::kSrcOver_Mode; 1096a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1097a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return mode->fMode; 1098a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 1099a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1100889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 1101889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 1102ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 1103a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 1104a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 1105a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1106a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 11079d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1108e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1109