OpenGLRenderer.cpp revision 8aef54fa17f2a3753d9a8f2027629bc480088f69
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 83889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guystatic const GLenum gTextureUnits[] = { 8406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 8506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 8606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 87d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy}; 88d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 89f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 90f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Constructors/destructor 91f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 92f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 93fb8b763f762ae21923c58d64caa729b012f40e05Romain GuyOpenGLRenderer::OpenGLRenderer(): mCaches(Caches::getInstance()) { 9485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Create OpenGLRenderer"); 959d5316e3f56d138504565ff311145ac01621dff4Romain Guy 9606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 97db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 981e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 99026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 100ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices)); 101ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy 102ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot = new Snapshot; 103ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy 104ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy GLint maxTextureUnits; 105ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits); 106ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) { 107889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT); 108889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 109e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 110e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 11185bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain GuyOpenGLRenderer::~OpenGLRenderer() { 11285bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy LOGD("Destroy OpenGLRenderer"); 113e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 114e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 115f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 116f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Setup 117f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 118f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 11985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::setViewport(int width, int height) { 12008ae317c21ec3086b5017672bba87420cc38a407Romain Guy glViewport(0, 0, width, height); 121260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.loadOrtho(0, width, height, 0, -1, 1); 122bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 123bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mWidth = width; 124bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy mHeight = height; 125ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy mFirstSnapshot->height = height; 1261d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy mFirstSnapshot->viewport.set(0, 0, width, height); 127e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 128e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 12985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::prepare() { 1308aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mFirstSnapshot, 1318aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 1328fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 133f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 134fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 135fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 13608ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 137bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 13808ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 13908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 140bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 14108ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 142c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 143f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 144b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 145bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 146bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 147da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 148da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 149da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 150da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 151da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 152da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 153da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 154da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 155da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 156da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 157da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 158da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 159da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 160da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy setScissorFromClip(); 161da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 162da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.blend) { 163da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_BLEND); 164da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 165da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } else { 166da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glDisable(GL_BLEND); 167da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 168da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 169da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 170f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 171f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 172f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 173f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 174bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1757ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 176bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 177bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 178bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1798aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 180bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 182bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1832542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 1842542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 1857ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 186bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 187bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1898fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 190bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1918fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 1922542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 1937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 194bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1968aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 1978aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 1988fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 199bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 200bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2027ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 203bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 204f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 205bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 206bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 208bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 209f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 2101d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect& r = previous->viewport; 2111d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 212260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 213f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 214f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 2158b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2168b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2178b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 218bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 219d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 220d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 221bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2222542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 2232542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setScissorFromClip(); 2248fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2252542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2262542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 227d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2285cbbce535744b89df5ecea95de21ee3733298260Romain Guy 229f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 230bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 231bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 232bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 233bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 234bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 2358aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy int count = saveSnapshot(flags); 236d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 237d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 238d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 239d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 240d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 241d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 242d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 243d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 244d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 245d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 246d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 247d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 249d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 250d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 2518b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (alpha > 0 && !mSnapshot->invisible) { 2528b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 2538b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2548b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot->invisible = true; 2558b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 256d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 257d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 258bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 259bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 260bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 261bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 2628aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy if (alpha == 0xff) { 2638aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 2648b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2658aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 2668aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 2678aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 2688b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 269d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 270bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 271d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 272d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 273d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 274fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 275dda570201ac851dd85af3861f7e575721d3345daRomain Guy 2768aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 2778aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // TODO: Apply transformations and treat layers in screen coordinates 2788aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // mSnapshot->transform->mapRect(bounds); 2798aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy 280f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 2818aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy LayerSize size(bounds.getWidth(), bounds.getHeight()); 282dda570201ac851dd85af3861f7e575721d3345daRomain Guy 283fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy Layer* layer = mCaches.layerCache.get(size, previousFbo); 284f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 285f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 286bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 287bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 288f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 289f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 290f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 291f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 292f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 293f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 294f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 295f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 296dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 297dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 2988aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 299dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3008fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 3018fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 302dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 303dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 3048aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // TODO: Temporary until real layer support is implemented 3058aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 3068aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // TODO: Temporary until real layer support is implemented 3078aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->resetClip(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 3088aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 3098aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->height = bounds.getHeight(); 3102542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 3112542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 3121d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 313f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 314f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 315f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 3168aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 3178aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 318f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 319d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 320bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 321bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3221d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 3231d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 3241d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 3251d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 3261d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3271d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3281d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Unbind current FBO and restore previous one 3291d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 3301d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 3311d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3321d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Restore the clip from the previous snapshot 3338aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *previous->clipRect; 3348aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy glScissor(clip.left, previous->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3351d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3361d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 3371d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 3381d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3398b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy // FBOs are already drawn with a top-left origin, don't flip the texture 3408b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 3418b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3421d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 3431d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 3441d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3458b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 3468b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3471d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 3481d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Failing to add the layer to the cache should happen only if the 3491d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // layer is too large 350fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (!mCaches.layerCache.put(size, layer)) { 3511d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 3521d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3531d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteFramebuffers(1, &layer->fbo); 3541d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 3551d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3561d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 3571d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3581d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 3591d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 360bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 361f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 362f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 363f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 364f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3658aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 366f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 367f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 368f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3698aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 370f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3738aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 374f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 375f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 376f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3778aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 378f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 380f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3818aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 382f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 383f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 384f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3857ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3868aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->multiply(m); 387f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 388f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 389f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 390f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 391f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 392f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 393bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 3948aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 395f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3969d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 3979d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3989d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 399079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 400bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 401bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 402c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 4038b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return true; 4048b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 4051d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 4068aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 4078aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->intersects(r); 408c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 409c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 410079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 411079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4127ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 4158aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 416e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 417e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 418f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 419f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 420f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 421f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 422c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4236926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4256926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4266926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4276926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4286926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4296926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 43061c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 431fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4329cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 43322158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 43422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 4356926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4368ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 438f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 439f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 440f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 441f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 442f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4436926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4446926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4456926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4466926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 44761c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 448fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4499cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 45022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 45122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 45282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 453f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 454f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 458f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4596926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4606926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4616926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4626926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 46361c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 464fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4659cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 46622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 4678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 470c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4728ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4738ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 475c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4768ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 47882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4798ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4808ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 481ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 482ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 483deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 484deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4856926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4866926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4876926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4886926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 48961c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 490fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4919cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 49222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 493f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 494f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 495f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 496f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 497f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 498fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy Patch* mesh = mCaches.patchCache.get(patch); 499fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 500fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 501f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 502f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 503f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 504a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 505a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 50616202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 507f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 508f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 50985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 5108b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 5118aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 5123d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 513c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5149d5316e3f56d138504565ff311145ac01621dff4Romain Guy 515bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5166926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5176926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5186926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5196926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 520026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 521026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 522026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 523026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 524026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 525026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 526026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 527026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 528026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 529026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 530026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 531d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 532026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 533026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 534026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 535026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 536c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5379d5316e3f56d138504565ff311145ac01621dff4Romain Guy 538e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 539e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 5408b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible || text == NULL || count == 0 || 5418b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 542e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 543e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 544e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 545a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy float scaleX = paint->getTextScaleX(); 546a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy bool applyScaleX = scaleX < 0.9999f || scaleX > 1.0001f; 547a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy if (applyScaleX) { 5488aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy save(SkCanvas::kMatrix_SaveFlag); 549a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy translate(x - (x * scaleX), 0.0f); 550a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy scale(scaleX, 1.0f); 551a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy } 552a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy 553a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 554e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 555e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 556e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 557e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 558e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 559e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 560e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 561e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 562e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 563e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 564e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 565e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 566e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 567694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 568694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 569694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 570694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5712542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 5722542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 5732542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 5742542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 5752542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 5762542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 577b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 578b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 579fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 5801e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 5811e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 582b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 583fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 5841e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 5851e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 5860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 5872542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 5880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 5890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 5900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 591fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 5921e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 5931e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 59406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 595db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 59606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 597b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy setupTextureAlpha8(fontRenderer.getTexture(), 0, 0, textureUnit, x, y, r, g, b, a, 5980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mode, false, true); 59906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 60009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 601b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 602694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 603694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 604fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 605a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 6060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 607a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy 608a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy if (applyScaleX) { 609a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy restore(); 610a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy } 611694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 612694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6137fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 6148b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 6158b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6167fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 6177fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 6187fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 619fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 6209cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 62122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 6227fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6238b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 6248b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 6258b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6268b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 6278b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 6288b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 6298b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6307fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6317fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6327fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6337fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6347fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6357fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6367fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6377fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6387fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6397fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 6410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 644fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 6457fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 6467fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6476926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 648d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 649d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 650d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 651d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 65206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 65306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 65406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 65506f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 65606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 65706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 658fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 65906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 6607fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6617fac2e18339f765320d759e8d4c090f92431959eRomain Guy 662d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 663db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 664db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 665db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 666db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 667db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 668db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 669db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 670db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 671db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 672db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 673db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 674db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 6751e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 6761e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6771e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6781e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 6791e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 6801e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6811e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6821e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 6831e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 6841e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 6851e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 6861e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 6871e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 6881e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6891e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6901e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6916926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 6926926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 6936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 6940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 6952542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 6960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 6970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 6980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6992542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 7002542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 7010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 7020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 7030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 7040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 7060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 7070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 7100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 7110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 7120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 7130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy x, y, r, g, b, a, mode, transforms, applyFilters); 7140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 7170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 7180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 7190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 7200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 7210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 7220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 7230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 7260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->describe(description, mExtensions); 7270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 7290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->describe(description, mExtensions); 7300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 734fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 7350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup the blending mode 7370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy chooseBlending(true, mode); 7380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 739fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 7400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 741fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 7420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 7430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes 745fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 7460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].position[0]); 7470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 7480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].texture[0]); 7490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 7510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 7520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 7530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 7540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 7550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 7560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7578aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 758fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 7590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 7610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 7630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 764fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 7650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 767fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 7680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 7730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 7740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 7750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 7770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 7780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 7790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 7800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 7810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 7820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 7830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 7840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 7850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 7880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 7890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 7900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 7910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 7920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 7930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 7940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 7950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 7960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 7970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 8000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float textSize = paint->getTextSize(); 8010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float height = textSize * kStdUnderline_Thickness; 8020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float left = x - offsetX; 8040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 8050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float right = left + underlineWidth; 8060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float bottom = 0.0f; 8070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 8090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 8100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 8150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 8160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 8220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 823026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 8243d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 825d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 82606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 827d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 828d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 829d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 830d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 831026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 832d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 833c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 834c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 835c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 836c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 83706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 8389d5316e3f56d138504565ff311145ac01621dff4Romain Guy 83906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup the blending mode 84006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode); 8419d5316e3f56d138504565ff311145ac01621dff4Romain Guy 84206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 843889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 84406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 84506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 846c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 847db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 848db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 849db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 850c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 85106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 852fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 853c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 85406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 855fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 856ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 857c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 85806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 859889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 860889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 86106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 8628aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 863889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 86406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 865fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 866889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 867fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 868d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 86906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 87006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 871fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 872d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 873db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 874fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 875db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 876d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 87706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 878889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 879d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 880d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 88182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 882a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 88382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 88482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 88582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 88682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 887a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 888ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 88985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 89085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 891bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 892a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 893a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 894ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 895f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 896f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 897f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 898a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 899f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 900889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 901889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 902db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 903db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 904db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 905889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 906bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 907bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 908bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 909fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 9108aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 911bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 912a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 913889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 914889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 91506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 916fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 917c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 918a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 919fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, alpha, alpha, alpha, alpha); 920bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 921889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 922fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 923889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 924fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 925ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 926889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 927bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 928db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 929db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 930fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 931db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 932db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 933f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 934ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 935f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 936f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 937f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 938889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 93982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 94082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 94182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 94282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 94382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 944fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (!mCaches.blend) { 94582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 94682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 94782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 94882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 94982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 95082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 95182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 95282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 95382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 954fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 95582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 956fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.lastSrcMode = sourceMode; 957fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.lastDstMode = destMode; 95882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 959fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 96082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 96182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 962fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 963bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 964bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 965889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 966d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 967fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 968d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 969fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 9706926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 971260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 9726926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 973260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 974260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 975026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 976ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 97782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 97882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 97982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 98082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 9818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 9828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9838ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 9848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 9858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 9868ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 9878ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 9888ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 9898ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 9908ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9918ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 9928ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 9938ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 9948ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 9958ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 9968ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 9978ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 9988ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 9998ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 10008ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 10018ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1002026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1003026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1004889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 1005889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 1006ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 1007a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 1008a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 1009a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1010a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 10119d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1012e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1013