OpenGLRenderer.cpp revision a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5
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 136d90f23e24a4d1768d5a7ed0e7072e67af6330a45Romain Guy glDisable(GL_DITHER); 13708ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 138bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 13908ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 14008ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 141bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 14208ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 143c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 144f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 145b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 146bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 147bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 148da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::acquireContext() { 149da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram) { 150da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.currentProgram->isInUse()) { 151da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram->remove(); 152da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy mCaches.currentProgram = NULL; 153da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 154da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 155da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 156da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 157da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guyvoid OpenGLRenderer::releaseContext() { 158da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glViewport(0, 0, mSnapshot->viewport.getWidth(), mSnapshot->viewport.getHeight()); 159da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 160da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_SCISSOR_TEST); 161da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy setScissorFromClip(); 162da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 163da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy if (mCaches.blend) { 164da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glEnable(GL_BLEND); 165da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glBlendFunc(mCaches.lastSrcMode, mCaches.lastDstMode); 166da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } else { 167da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy glDisable(GL_BLEND); 168da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy } 169da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy} 170da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 171f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 172f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 173f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 174f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 175bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1767ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 177bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 178bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 179bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1808aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveSnapshot(flags); 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 182bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 183bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1842542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 1852542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 1867ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 187bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 188bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 189bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1908fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 191bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1928fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 1932542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 1947ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 195bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 196bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1978aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guyint OpenGLRenderer::saveSnapshot(int flags) { 1988aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot = new Snapshot(mSnapshot, flags); 1998fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 200bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 201bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 202bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 2037ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 204bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 205f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 206bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 207bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 2087ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 209bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 210f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 2111d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect& r = previous->viewport; 2121d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 213260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 214f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 215f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 2168b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 2178b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 2188b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 219bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 220d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 221d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 222bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2232542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 2242542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setScissorFromClip(); 2258fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2262542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2272542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 228d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2295cbbce535744b89df5ecea95de21ee3733298260Romain Guy 230f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 231bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 232bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 233bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 234bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 235bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 2368aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy int count = saveSnapshot(flags); 237d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 238d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 239d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 240d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 241d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 242d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 243a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 244a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 245a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 246a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 247a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 248a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 249a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 250a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 251d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 252d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 253d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 254d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 255d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 2568b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (alpha > 0 && !mSnapshot->invisible) { 2578b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 2588b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2598b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot->invisible = true; 2608b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 261d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 262d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 263bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 264bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 265bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 266bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 2678aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy if (alpha == 0xff) { 2688aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, NULL, flags); 2698b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2708aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy SkPaint paint; 2718aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy paint.setAlpha(alpha); 2728aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return saveLayer(left, top, right, bottom, &paint, flags); 2738b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 274d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 275bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 276d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 277d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 278d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 279fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 280dda570201ac851dd85af3861f7e575721d3345daRomain Guy 2818aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy Rect bounds(left, top, right, bottom); 2828aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // TODO: Apply transformations and treat layers in screen coordinates 2838aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // mSnapshot->transform->mapRect(bounds); 2848aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy 285f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 2868aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy LayerSize size(bounds.getWidth(), bounds.getHeight()); 287dda570201ac851dd85af3861f7e575721d3345daRomain Guy 288fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy Layer* layer = mCaches.layerCache.get(size, previousFbo); 289f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 290f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 291bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 292bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 293f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 294f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 295f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 296f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 297f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 298f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 299f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 300f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 301dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 302dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 3038aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy layer->layer.set(bounds); 304dda570201ac851dd85af3861f7e575721d3345daRomain Guy 3058fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 3068fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 307dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 308dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 3098aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // TODO: Temporary until real layer support is implemented 3108aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->resetTransform(-bounds.left, -bounds.top, 0.0f); 3118aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy // TODO: Temporary until real layer support is implemented 3128aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->resetClip(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 3138aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight()); 3148aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy snapshot->height = bounds.getHeight(); 3152542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 3162542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 3171d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 318f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 319f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 320f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 3218aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy glViewport(0, 0, bounds.getWidth(), bounds.getHeight()); 3228aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mOrthoMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f); 323f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 324d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 325bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 326bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 3271d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 3281d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 3291d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 3301d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 3311d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3321d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3331d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Unbind current FBO and restore previous one 3341d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 3351d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 3361d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3371d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Restore the clip from the previous snapshot 3388aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *previous->clipRect; 3398aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy glScissor(clip.left, previous->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3401d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3411d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 3421d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 3431d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3448b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy // FBOs are already drawn with a top-left origin, don't flip the texture 3458b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 3468b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3471d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 3481d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 3491d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3508b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 3518b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3521d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 3531d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Failing to add the layer to the cache should happen only if the 3541d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // layer is too large 355fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (!mCaches.layerCache.put(size, layer)) { 3561d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 3571d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3581d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteFramebuffers(1, &layer->fbo); 3591d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 3601d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3611d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 3621d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3631d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 3641d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 365bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 366f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 367f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 368f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 369f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3708aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->translate(dx, dy, 0.0f); 371f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 372f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 373f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3748aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->rotate(degrees, 0.0f, 0.0f, 1.0f); 375f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 376f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 377f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3788aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->scale(sx, sy, 1.0f); 379f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 380f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 381f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3828aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->load(*matrix); 383f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 384f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 385f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3868aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->copyTo(*matrix); 387f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 388f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 389f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3907ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3918aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->multiply(m); 392f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 393f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 394f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 395f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 396f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 397f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 398bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 3998aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 400f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 4019d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 4029d5316e3f56d138504565ff311145ac01621dff4Romain Guy 4039d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 404079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 405bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 406bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 407c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 4088b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return true; 4098b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 4101d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 4118aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mSnapshot->transform->mapRect(r); 4128aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->intersects(r); 413c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 414c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 415079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 416079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 4177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 4187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 4197ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 4208aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy return !mSnapshot->clipRect->isEmpty(); 421e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 422e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 423f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 424f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 425f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 426f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 427c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 4286926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 4296926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 4306926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 4316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4336926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4346926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 43561c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 436fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4379cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 43822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 43922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 4406926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 443f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 444f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 445f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 446f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 447f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4486926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4496926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4506926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4516926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 45261c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 453fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4549cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 45522158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 45622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 45782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 458f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 459f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 463f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4646926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4656926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4666926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4676926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 46861c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 469fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4709cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 47122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 4728ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4738ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4748ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 475c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4768ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4778ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4788ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4798ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 480c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4818ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4828ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 48382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4848ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4858ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 486ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 487ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 488deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 489deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4906926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4916926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4926926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 49461c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 495fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4969cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 49722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 498f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 499f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 500f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 501f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 502f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 503fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy Patch* mesh = mCaches.patchCache.get(patch); 504fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 505fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 506f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 507f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 508f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 509a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 510a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 51116202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 512f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 513f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 51485bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 5158b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 5168aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy const Rect& clip = *mSnapshot->clipRect; 5173d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 518c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5199d5316e3f56d138504565ff311145ac01621dff4Romain Guy 520bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 5216926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 5226926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 5236926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 5246926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 525026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 526a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 527a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 528a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 529a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 530a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = SkXfermode::kSrcOver_Mode; 531a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 532a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 533a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mode = getXfermode(p->getXfermode()); 534026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 535026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 536026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 537026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 538026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 539d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 540026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 541026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 542026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 543026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 544c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5459d5316e3f56d138504565ff311145ac01621dff4Romain Guy 546e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 547e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 5488b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible || text == NULL || count == 0 || 5498b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 550e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 551e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 552e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 553a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy float scaleX = paint->getTextScaleX(); 554a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy bool applyScaleX = scaleX < 0.9999f || scaleX > 1.0001f; 555a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy if (applyScaleX) { 5568aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy save(SkCanvas::kMatrix_SaveFlag); 557a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy translate(x - (x * scaleX), 0.0f); 558a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy scale(scaleX, 1.0f); 559a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy } 560a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy 561a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 562e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 563e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 564e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 565e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 566e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 567e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 568e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 569e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 570e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 571e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 572e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 573e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 574e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 575694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 576694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 577694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 578694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5792542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 5802542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 5812542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 5822542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 5832542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 5842542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 585b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 586b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 587fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 5881e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 5891e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 590b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 591fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 5921e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 5931e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 5940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 5952542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 5960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 5970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 5980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 599fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 6001e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 6011e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 60206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 603db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 60406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 605b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy setupTextureAlpha8(fontRenderer.getTexture(), 0, 0, textureUnit, x, y, r, g, b, a, 6060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mode, false, true); 60706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 60809147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 609b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 610694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 611694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 612fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 613a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 6140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 615a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy 616a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy if (applyScaleX) { 617a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy restore(); 618a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy } 619694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 620694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 6217fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 6228b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 6238b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6247fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 6257fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 6267fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 627fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 6289cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 62922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 6307fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6318b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 6328b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 6338b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6348b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 6358b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 6368b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 6378b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6387fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6397fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6407fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6417fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6427fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6437fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6447fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6457fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6467fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6477fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 6490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 652fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 6537fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 6547fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6556926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 656d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 657d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 658d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 659d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 66006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 66106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 66206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 66306f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 66406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 66506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 666fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 66706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 6687fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6697fac2e18339f765320d759e8d4c090f92431959eRomain Guy 670d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 671db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 672db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 673db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 674db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 675db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 676db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 677db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 678db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 679db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 680db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 681db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 682db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 6831e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 6841e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6851e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6861e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 6871e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 6881e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6891e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6901e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 6911e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 6921e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 6931e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 6941e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 6951e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 6961e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6971e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6981e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6996926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 7006926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 7016926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 7020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 7032542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 7040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 7050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 7060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7072542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 7082542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 7090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 7100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 7110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 7120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 7140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 7150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 7180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 7190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 7200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 7210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy x, y, r, g, b, a, mode, transforms, applyFilters); 7220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 7250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 7260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 7270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 7280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 7290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 7300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 7310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 7340a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->describe(description, mExtensions); 7350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 7370a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->describe(description, mExtensions); 7380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 741a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 742a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(true, mode, description); 743a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 7440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 745fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 7460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 748fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 7490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 750fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 7510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 7520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes 754fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 7550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].position[0]); 7560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 7570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].texture[0]); 7580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 7600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 7610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 7620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 7630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 7640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 7650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7668aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 767fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 7680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 7700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 7720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 773fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 7740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 776fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 7770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 7820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 7830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 7840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 7860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 7870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 7880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 7890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 7900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 7910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 7920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 7930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 7940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 7970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 7980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 7990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 8000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 8020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 8030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8040a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 8050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 8060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 8090a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float textSize = paint->getTextSize(); 8100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float height = textSize * kStdUnderline_Thickness; 8110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float left = x - offsetX; 8130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 8140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float right = left + underlineWidth; 8150a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float bottom = 0.0f; 8160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 8180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 8190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 8230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 8240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 8250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 8260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 8270a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8280a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 8300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 8310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 832026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 8333d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 834d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 83506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 836d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 837d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 838d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 839d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 840026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 841d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 842c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 843c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 844c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 845c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 84606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 8479d5316e3f56d138504565ff311145ac01621dff4Romain Guy 84806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 849889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 85006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 85106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 852c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 853db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 854db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 855db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 856c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 857a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Setup the blending mode 858a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode, description); 859a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 86006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 861fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 862c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 86306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 864fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 865ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 866c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 86706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 868889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 869889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 87006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 8718aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 872889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 87306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 874fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 875889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 876fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 877d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 87806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 87906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 880fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 881d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 882db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 883fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 884db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 885d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 88606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 887889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 888d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 889d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 89082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 891a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 89282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 89382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 89482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 89582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 896a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 897ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 89885bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 89985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 900bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 901a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 902a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 903ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 904f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 905f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 906f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 907a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 908f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 909889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 910889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 911db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 912db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 913db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 914889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 915bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 916bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 917bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 918a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy chooseBlending(blend || alpha < 1.0f, mode, description); 919a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 920fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 9218aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, *mSnapshot->transform); 922bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 923889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 92406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 925fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 926c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 927a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 928fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, alpha, alpha, alpha, alpha); 929bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 930889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 931fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 932889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 933fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 934ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 935889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 936bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 937db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 938db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 939fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 940db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 941db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 942f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 943ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 944f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 945f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 946f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 947889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 94882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 94982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 950a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, 951a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy ProgramDescription& description) { 95282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 95382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 954a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode < SkXfermode::kPlus_Mode) { 955a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mCaches.blend) { 956a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glEnable(GL_BLEND); 957a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 95882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 959a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy GLenum sourceMode = gBlends[mode].src; 960a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy GLenum destMode = gBlends[mode].dst; 96182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 962a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 963a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glBlendFunc(sourceMode, destMode); 964a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastSrcMode = sourceMode; 965a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mCaches.lastDstMode = destMode; 966a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 967a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 968a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // These blend modes are not supported by OpenGL directly and have 969a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // to be implemented using shaders. Since the shader will perform 970a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // the blending, turn blending off here 971a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mExtensions.hasFramebufferFetch()) { 972a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy description.framebufferMode = mode; 973a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 974a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 975a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mCaches.blend) { 976a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy glDisable(GL_BLEND); 977a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 978a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy blend = false; 97982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 980fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 98182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 98282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 983fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 984bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 985bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 986889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 987d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 988fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 989d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 990fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 9916926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 992260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 9936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 994260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 995260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 996026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 997ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 99882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 99982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 100082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 100182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 10028ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 10038ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 10048ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 10058ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 1006a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!mExtensions.hasFramebufferFetch()) { 1007a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 1008a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (!isMode) { 1009a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy // Assume SRC_OVER 1010a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = SkXfermode::kSrcOver_Mode; 1011a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1012a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } else { 1013a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy *mode = getXfermode(paint->getXfermode()); 10148ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10158ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 10168ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 10178ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 10188ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 10198ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 10208ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 10218ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 10228ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 10238ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 10248ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 10258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 10268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 1027026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 1028026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 1029a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain GuySkXfermode::Mode OpenGLRenderer::getXfermode(SkXfermode* mode) { 1030a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy if (mode == NULL) { 1031a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return SkXfermode::kSrcOver_Mode; 1032a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy } 1033a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy return mode->fMode; 1034a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy} 1035a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 1036889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 1037889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 1038ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 1039a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 1040a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 1041a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 1042a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 10439d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 1044e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 1045