OpenGLRenderer.cpp revision b45c0c9774bd19a9dbe77d149abae4e124b08bf6
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() { 130b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot = new Snapshot(mFirstSnapshot); 1318fb954263dd2f918ad339045cc6d82e346515599Romain Guy mSaveCount = 1; 132f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 133fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glViewport(0, 0, mWidth, mHeight); 134fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy 13508ae317c21ec3086b5017672bba87420cc38a407Romain Guy glDisable(GL_SCISSOR_TEST); 136bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 13708ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 13808ae317c21ec3086b5017672bba87420cc38a407Romain Guy glClear(GL_COLOR_BUFFER_BIT); 139bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 14008ae317c21ec3086b5017672bba87420cc38a407Romain Guy glEnable(GL_SCISSOR_TEST); 141c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy glScissor(0, 0, mWidth, mHeight); 142f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 143b82da65cb1601be504241f36778395cd6cb9f87bRomain Guy mSnapshot->setClip(0.0f, 0.0f, mWidth, mHeight); 144bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 145bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 146f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 147f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// State management 148f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 149f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 150bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::getSaveCount() const { 1517ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return mSaveCount; 152bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 153bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 154bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::save(int flags) { 1557ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return saveSnapshot(); 156bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 157bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 158bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restore() { 1592542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (mSaveCount > 1) { 1602542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 1617ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 162bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 163bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 164bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::restoreToCount(int saveCount) { 1658fb954263dd2f918ad339045cc6d82e346515599Romain Guy if (saveCount < 1) saveCount = 1; 166bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1678fb954263dd2f918ad339045cc6d82e346515599Romain Guy while (mSaveCount > saveCount) { 1682542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy restoreSnapshot(); 1697ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 170bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 171bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 172bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyint OpenGLRenderer::saveSnapshot() { 1737ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot = new Snapshot(mSnapshot); 1748fb954263dd2f918ad339045cc6d82e346515599Romain Guy return mSaveCount++; 175bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 176bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 177bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guybool OpenGLRenderer::restoreSnapshot() { 1787ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool restoreClip = mSnapshot->flags & Snapshot::kFlagClipSet; 179bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy bool restoreLayer = mSnapshot->flags & Snapshot::kFlagIsLayer; 180f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy bool restoreOrtho = mSnapshot->flags & Snapshot::kFlagDirtyOrtho; 181bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 182bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy sp<Snapshot> current = mSnapshot; 1837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy sp<Snapshot> previous = mSnapshot->previous; 184bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 185f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy if (restoreOrtho) { 1861d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect& r = previous->viewport; 1871d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(r.left, r.top, r.right, r.bottom); 188260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy mOrthoMatrix.load(current->orthoMatrix); 189f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy } 190f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 1918b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSaveCount--; 1928b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot = previous; 1938b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 194bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy if (restoreLayer) { 195d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy composeLayer(current, previous); 196d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 197bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 1982542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy if (restoreClip) { 1992542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setScissorFromClip(); 2008fb954263dd2f918ad339045cc6d82e346515599Romain Guy } 2012542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 2022542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy return restoreClip; 203d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 2045cbbce535744b89df5ecea95de21ee3733298260Romain Guy 205f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 206bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy// Layers 207bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 208bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 209bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayer(float left, float top, float right, float bottom, 210bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy const SkPaint* p, int flags) { 211d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int count = saveSnapshot(); 212d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 213d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy int alpha = 255; 214d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy SkXfermode::Mode mode; 215d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 216d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (p) { 217d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy alpha = p->getAlpha(); 218d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 219d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy if (!isMode) { 220d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy // Assume SRC_OVER 221d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 222d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 223d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } else { 224d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy mode = SkXfermode::kSrcOver_Mode; 225d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy } 226d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 2278b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (alpha > 0 && !mSnapshot->invisible) { 2288b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, mode, flags); 2298b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2308b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot->invisible = true; 2318b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 232d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy 233d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 234bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 235bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 236bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyint OpenGLRenderer::saveLayerAlpha(float left, float top, float right, float bottom, 237bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int alpha, int flags) { 238bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy int count = saveSnapshot(); 2398b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (alpha > 0 && !mSnapshot->invisible) { 2408b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy createLayer(mSnapshot, left, top, right, bottom, alpha, SkXfermode::kSrcOver_Mode, flags); 2418b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } else { 2428b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mSnapshot->invisible = true; 2438b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 244d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return count; 245d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy} 246bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 247d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guybool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top, 248d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy float right, float bottom, int alpha, SkXfermode::Mode mode,int flags) { 249d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy LAYER_LOGD("Requesting layer %fx%f", right - left, bottom - top); 250fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize()); 251dda570201ac851dd85af3861f7e575721d3345daRomain Guy 252f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy GLuint previousFbo = snapshot->previous.get() ? snapshot->previous->fbo : 0; 253f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy LayerSize size(right - left, bottom - top); 254dda570201ac851dd85af3861f7e575721d3345daRomain Guy 255fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy Layer* layer = mCaches.layerCache.get(size, previousFbo); 256f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy if (!layer) { 257f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy return false; 258bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy } 259bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 260f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy glBindFramebuffer(GL_FRAMEBUFFER, layer->fbo); 261f18fd99b5c182329cd8936a9611f0103d8ece44aRomain Guy 262f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Clear the FBO 263f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glDisable(GL_SCISSOR_TEST); 264f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClearColor(0.0f, 0.0f, 0.0f, 0.0f); 265f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glClear(GL_COLOR_BUFFER_BIT); 266f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glEnable(GL_SCISSOR_TEST); 267f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 268dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->mode = mode; 269dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->alpha = alpha / 255.0f; 270dda570201ac851dd85af3861f7e575721d3345daRomain Guy layer->layer.set(left, top, right, bottom); 271dda570201ac851dd85af3861f7e575721d3345daRomain Guy 2728fb954263dd2f918ad339045cc6d82e346515599Romain Guy // Save the layer in the snapshot 2738fb954263dd2f918ad339045cc6d82e346515599Romain Guy snapshot->flags |= Snapshot::kFlagIsLayer; 274dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->layer = layer; 275dda570201ac851dd85af3861f7e575721d3345daRomain Guy snapshot->fbo = layer->fbo; 2762542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->transform.loadTranslate(-left, -top, 0.0f); 2772542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->setClip(0.0f, 0.0f, right - left, bottom - top); 2782542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->viewport.set(0.0f, 0.0f, right - left, bottom - top); 2792542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->height = bottom - top; 2802542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->flags |= Snapshot::kFlagDirtyOrtho; 2812542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy snapshot->orthoMatrix.load(mOrthoMatrix); 2821d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 283f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy setScissorFromClip(); 284f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 285f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy // Change the ortho projection 2861d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glViewport(0, 0, right - left, bottom - top); 2878b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy mOrthoMatrix.loadOrtho(0.0f, right - left, bottom - top, 0.0f, -1.0f, 1.0f); 288f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 289d55a86120dd1e8ebcc6906c9ffd463f7460348daRomain Guy return true; 290bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 291bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 2921d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guyvoid OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) { 2931d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy if (!current->layer) { 2941d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LOGE("Attempting to compose a layer that does not exist"); 2951d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy return; 2961d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 2971d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 2981d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Unbind current FBO and restore previous one 2991d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Most of the time, previous->fbo will be 0 to bind the default buffer 3001d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo); 3011d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3021d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Restore the clip from the previous snapshot 3031d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& clip = previous->clipRect; 3041d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glScissor(clip.left, mHeight - clip.bottom, clip.getWidth(), clip.getHeight()); 3051d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3061d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Layer* layer = current->layer; 3071d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy const Rect& rect = layer->layer; 3081d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3098b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy // FBOs are already drawn with a top-left origin, don't flip the texture 3108b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f); 3118b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3121d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy drawTextureRect(rect.left, rect.top, rect.right, rect.bottom, 3131d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy layer->texture, layer->alpha, layer->mode, layer->blend); 3141d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3158b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 3168b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3171d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LayerSize size(rect.getWidth(), rect.getHeight()); 3181d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // Failing to add the layer to the cache should happen only if the 3191d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy // layer is too large 320fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (!mCaches.layerCache.put(size, layer)) { 3211d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy LAYER_LOGD("Deleting layer"); 3221d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3231d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteFramebuffers(1, &layer->fbo); 3241d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy glDeleteTextures(1, &layer->texture); 3251d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 3261d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy delete layer; 3271d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy } 3281d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy} 3291d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy 330bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy/////////////////////////////////////////////////////////////////////////////// 331f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Transforms 332f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 333f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 334f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::translate(float dx, float dy) { 3357ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.translate(dx, dy, 0.0f); 336f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 337f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 338f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::rotate(float degrees) { 3397ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.rotate(degrees, 0.0f, 0.0f, 1.0f); 340f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 341f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 342f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::scale(float sx, float sy) { 3437ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.scale(sx, sy, 1.0f); 344f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 345f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 346f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::setMatrix(SkMatrix* matrix) { 3477ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.load(*matrix); 348f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 349f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 350f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::getMatrix(SkMatrix* matrix) { 3517ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.copyTo(*matrix); 352f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 353f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 354f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guyvoid OpenGLRenderer::concatMatrix(SkMatrix* matrix) { 3557ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mat4 m(*matrix); 3567ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy mSnapshot->transform.multiply(m); 357f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy} 358f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 359f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 360f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Clipping 361f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 362f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 363bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guyvoid OpenGLRenderer::setScissorFromClip() { 364079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 365f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy glScissor(clip.left, mSnapshot->height - clip.bottom, clip.getWidth(), clip.getHeight()); 3669d5316e3f56d138504565ff311145ac01621dff4Romain Guy} 3679d5316e3f56d138504565ff311145ac01621dff4Romain Guy 3689d5316e3f56d138504565ff311145ac01621dff4Romain Guyconst Rect& OpenGLRenderer::getClipBounds() { 369079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return mSnapshot->getLocalClip(); 370bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy} 371bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 372c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guybool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) { 3738b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return true; 3748b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 3751d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy Rect r(left, top, right, bottom); 3761d83e1981c8b89da93dff37a4f8b2b1ad8480b44Romain Guy mSnapshot->transform.mapRect(r); 377c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy return !mSnapshot->clipRect.intersects(r); 378c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 379c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 380079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guybool OpenGLRenderer::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 381079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool clipped = mSnapshot->clip(left, top, right, bottom, op); 3827ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy if (clipped) { 3837ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy setScissorFromClip(); 3847ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 385079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return !mSnapshot->clipRect.isEmpty(); 386e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy} 387e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy 388f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 389f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy// Drawing 390f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy/////////////////////////////////////////////////////////////////////////////// 391f6a11b8a9e25ff9861bbba19251bea84d8a5daf2Romain Guy 392c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, float left, float top, const SkPaint* paint) { 3936926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float right = left + bitmap->width(); 3946926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy const float bottom = top + bitmap->height(); 3956926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 3966926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 3976926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 3986926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 3996926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 40061c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 401fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4029cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 40322158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 40422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 4056926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy drawTextureRect(left, top, right, bottom, texture, paint); 4068ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 4078ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 408f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, const SkMatrix* matrix, const SkPaint* paint) { 409f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy Rect r(0.0f, 0.0f, bitmap->width(), bitmap->height()); 410f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const mat4 transform(*matrix); 411f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy transform.mapRect(r); 412f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4136926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(r.left, r.top, r.right, r.bottom)) { 4146926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4156926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4166926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 41761c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 418fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4199cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 42022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 42122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 42282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(r.left, r.top, r.right, r.bottom, texture, paint); 423f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy} 424f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy 4258ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::drawBitmap(SkBitmap* bitmap, 4268ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float srcLeft, float srcTop, float srcRight, float srcBottom, 4278ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy float dstLeft, float dstTop, float dstRight, float dstBottom, 428f86ef57f8bcd8ba43ce222ec6a8b4f67d3600640Romain Guy const SkPaint* paint) { 4296926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(dstLeft, dstTop, dstRight, dstBottom)) { 4306926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4316926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4326926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 43361c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 434fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4359cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 43622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 4378ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4388ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float width = texture->width; 4398ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float height = texture->height; 440c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4418ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u1 = srcLeft / width; 4428ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v1 = srcTop / height; 4438ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float u2 = srcRight / width; 4448ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const float v2 = srcBottom / height; 445c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 4468ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(u1, v1, u2, v2); 4478ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 44882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy drawTextureRect(dstLeft, dstTop, dstRight, dstBottom, texture, paint); 4498ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 4508ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f); 451ce0537b80087a6225273040a987414b1dd081aa0Romain Guy} 452ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 453deba785f122a47915756ffd991f5540d952cf937Romain Guyvoid OpenGLRenderer::drawPatch(SkBitmap* bitmap, Res_png_9patch* patch, 454deba785f122a47915756ffd991f5540d952cf937Romain Guy float left, float top, float right, float bottom, const SkPaint* paint) { 4556926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4566926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4576926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4586926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 45961c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy glActiveTexture(GL_TEXTURE0); 460fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const Texture* texture = mCaches.textureCache.get(bitmap); 4619cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 46222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 463f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 464f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy int alpha; 465f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy SkXfermode::Mode mode; 466f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy getAlphaAndMode(paint, &alpha, &mode); 467f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 468fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy Patch* mesh = mCaches.patchCache.get(patch); 469fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy mesh->updateVertices(bitmap, left, top, right, bottom, 470fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy &patch->xDivs[0], &patch->yDivs[0], patch->numXDivs, patch->numYDivs); 471f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 472f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // Specify right and bottom as +1.0f from left/top to prevent scaling since the 473f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy // patch mesh already defines the final size 474a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, left + 1.0f, top + 1.0f, texture->id, alpha / 255.0f, 475a979474f15b454c8e2963f239a3770e200bb227cRomain Guy mode, texture->blend, &mesh->vertices[0].position[0], 47616202fc9745e9b11db089ebc8f40119d13732016Romain Guy &mesh->vertices[0].texture[0], mesh->indices, mesh->indicesCount); 477f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 478f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 47985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guyvoid OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) { 4808b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 481079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy const Rect& clip = mSnapshot->clipRect; 4823d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy drawColorRect(clip.left, clip.top, clip.right, clip.bottom, color, mode, true); 483c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 4849d5316e3f56d138504565ff311145ac01621dff4Romain Guy 485bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawRect(float left, float top, float right, float bottom, const SkPaint* p) { 4866926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy if (quickReject(left, top, right, bottom)) { 4876926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return; 4886926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy } 4896926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 490026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy SkXfermode::Mode mode; 491026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 492026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const bool isMode = SkXfermode::IsMode(p->getXfermode(), &mode); 493026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy if (!isMode) { 494026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Assume SRC_OVER 495026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy mode = SkXfermode::kSrcOver_Mode; 496026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 497026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 498026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Skia draws using the color's alpha channel if < 255 499026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy // Otherwise, it uses the paint's alpha 500026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy int color = p->getColor(); 501d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (((color >> 24) & 0xff) == 255) { 502026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy color |= p->getAlpha() << 24; 503026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy } 504026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 505026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy drawColorRect(left, top, right, bottom, color, mode); 506c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy} 5079d5316e3f56d138504565ff311145ac01621dff4Romain Guy 508e8e62a4a032a80409114a37908b5f18ab0080848Romain Guyvoid OpenGLRenderer::drawText(const char* text, int bytesCount, int count, 509e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy float x, float y, SkPaint* paint) { 5108b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible || text == NULL || count == 0 || 5118b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) { 512e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy return; 513e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 514e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 515a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy float scaleX = paint->getTextScaleX(); 516a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy bool applyScaleX = scaleX < 0.9999f || scaleX > 1.0001f; 517a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy if (applyScaleX) { 518a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy save(0); 519a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy translate(x - (x * scaleX), 0.0f); 520a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy scale(scaleX, 1.0f); 521a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy } 522a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy 523a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy float length = -1.0f; 524e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy switch (paint->getTextAlign()) { 525e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kCenter_Align: 526e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 527e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length / 2.0f; 528e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 529e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy case SkPaint::kRight_Align: 530e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy length = paint->measureText(text, bytesCount); 531e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy x -= length; 532e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 533e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy default: 534e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy break; 535e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy } 536e8e62a4a032a80409114a37908b5f18ab0080848Romain Guy 537694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy int alpha; 538694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy SkXfermode::Mode mode; 539694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy getAlphaAndMode(paint, &alpha, &mode); 540694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5412542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy uint32_t color = paint->getColor(); 5422542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = alpha / 255.0f; 5432542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 5442542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 5452542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 5462542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy 547b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint); 548b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()), 549fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy paint->getTextSize()); 5501e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy if (mHasShadow) { 5511e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy glActiveTexture(gTextureUnits[0]); 552b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mCaches.dropShadowCache.setFontRenderer(fontRenderer); 553fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const ShadowTexture* shadow = mCaches.dropShadowCache.get(paint, text, bytesCount, 5541e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy count, mShadowRadius); 5551e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy const AutoTexture autoCleanup(shadow); 5560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 5572542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy setupShadow(shadow, x, y, mode, a); 5580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 5590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 5600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 561fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 5621e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 5631e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 56406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 565db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 56606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 567b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy setupTextureAlpha8(fontRenderer.getTexture(), 0, 0, textureUnit, x, y, r, g, b, a, 5680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mode, false, true); 56906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 57009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect& clip = mSnapshot->getLocalClip(); 571b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy fontRenderer.renderText(paint, &clip, text, 0, bytesCount, count, x, y); 572694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 573694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); 574fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 575a674ab74e359ac73b4c4dd6b1a3a771836ac7e40Romain Guy 5760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawTextDecorations(text, bytesCount, length, x, y, paint); 577a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy 578a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy if (applyScaleX) { 579a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy restore(); 580a80d32f7b69aa37026ab99e4ade1ad86dae76a81Romain Guy } 581694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy} 582694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 5837fbcc0492fca03857e3c45064f4aa040af817d55Romain Guyvoid OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) { 5848b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (mSnapshot->invisible) return; 5858b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 5867fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy GLuint textureUnit = 0; 5877fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy glActiveTexture(gTextureUnits[textureUnit]); 5887fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 589fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy const PathTexture* texture = mCaches.pathCache.get(path, paint); 5909cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 59122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const AutoTexture autoCleanup(texture); 5927fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 5938b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float x = texture->left - texture->offset; 5948b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy const float y = texture->top - texture->offset; 5958b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 5968b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy if (quickReject(x, y, x + texture->width, y + texture->height)) { 5978b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy return; 5988b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy } 5998b55f377655d13a445b08a0a8ed09b6e95c752b0Romain Guy 6007fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy int alpha; 6017fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy SkXfermode::Mode mode; 6027fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy getAlphaAndMode(paint, &alpha, &mode); 6037fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6047fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy uint32_t color = paint->getColor(); 6057fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat a = alpha / 255.0f; 6067fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 6077fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 6087fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 6097fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, x, y, r, g, b, a, mode, true, true); 6110a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Draw the mesh 6130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 614fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glDisableVertexAttribArray(mCaches.currentProgram->getAttrib("texCoords")); 6157fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy} 6167fbcc0492fca03857e3c45064f4aa040af817d55Romain Guy 6176926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 618d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy// Shaders 619d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 620d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 621d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guyvoid OpenGLRenderer::resetShader() { 62206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = NULL; 62306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 62406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 62506f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid OpenGLRenderer::setupShader(SkiaShader* shader) { 62606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader = shader; 62706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 628fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->set(&mCaches.textureCache, &mCaches.gradientCache); 62906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 6307fac2e18339f765320d759e8d4c090f92431959eRomain Guy} 6317fac2e18339f765320d759e8d4c090f92431959eRomain Guy 632d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy/////////////////////////////////////////////////////////////////////////////// 633db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy// Color filters 634db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 635db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 636db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::resetColorFilter() { 637db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = NULL; 638db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 639db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 640db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guyvoid OpenGLRenderer::setupColorFilter(SkiaColorFilter* filter) { 641db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter = filter; 642db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy} 643db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 644db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy/////////////////////////////////////////////////////////////////////////////// 6451e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy// Drop shadow 6461e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6471e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6481e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::resetShadow() { 6491e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = false; 6501e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6511e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6521e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guyvoid OpenGLRenderer::setupShadow(float radius, float dx, float dy, int color) { 6531e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mHasShadow = true; 6541e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowRadius = radius; 6551e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDx = dx; 6561e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowDy = dy; 6571e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy mShadowColor = color; 6581e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy} 6591e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 6601e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy/////////////////////////////////////////////////////////////////////////////// 6616926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy// Drawing implementation 6626926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy/////////////////////////////////////////////////////////////////////////////// 6636926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy 6640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupShadow(const ShadowTexture* texture, float x, float y, 6652542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy SkXfermode::Mode mode, float alpha) { 6660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sx = x - texture->left + mShadowDx; 6670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const float sy = y - texture->top + mShadowDy; 6680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6692542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const int shadowAlpha = ((mShadowColor >> 24) & 0xFF); 6702542d199745cdf3ec910b8e3e4cff5851ed24e9bRomain Guy const GLfloat a = shadowAlpha < 255 ? shadowAlpha / 255.0f : alpha; 6710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat r = a * ((mShadowColor >> 16) & 0xFF) / 255.0f; 6720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat g = a * ((mShadowColor >> 8) & 0xFF) / 255.0f; 6730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy const GLfloat b = a * ((mShadowColor ) & 0xFF) / 255.0f; 6740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint textureUnit = 0; 6760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture, textureUnit, sx, sy, r, g, b, a, mode, true, false); 6770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 6780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(const Texture* texture, GLuint& textureUnit, 6800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, float r, float g, float b, float a, SkXfermode::Mode mode, 6810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bool transforms, bool applyFilters) { 6820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy setupTextureAlpha8(texture->id, texture->width, texture->height, textureUnit, 6830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy x, y, r, g, b, a, mode, transforms, applyFilters); 6840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 6850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::setupTextureAlpha8(GLuint texture, uint32_t width, uint32_t height, 6870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy GLuint& textureUnit, float x, float y, float r, float g, float b, float a, 6880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy SkXfermode::Mode mode, bool transforms, bool applyFilters) { 6890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Describe the required shaders 6900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy ProgramDescription description; 6910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasTexture = true; 6920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy description.hasAlpha8Texture = true; 6930a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 6940a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 6950a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 6960a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mShader->describe(description, mExtensions); 6970a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 6980a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 6990a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mColorFilter->describe(description, mExtensions); 7000a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7010a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7020a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7030a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Build and use the appropriate shader 704fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 7050a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7060a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup the blending mode 7070a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy chooseBlending(true, mode); 7080a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, textureUnit); 709fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), textureUnit); 7100a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 711fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 7120a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glEnableVertexAttribArray(texCoordsSlot); 7130a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7140a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes 715fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 7160a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].position[0]); 7170a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, 7180a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy gMeshStride, &mMeshVertices[0].texture[0]); 7190a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7200a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup uniforms 7210a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (transforms) { 7220a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadTranslate(x, y, 0.0f); 7230a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.scale(width, height, 1.0f); 7240a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } else { 7250a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy mModelView.loadIdentity(); 7260a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 727fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 728fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 7290a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7300a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy textureUnit++; 7310a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (applyFilters) { 7320a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Setup attributes and uniforms required by the shaders 7330a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mShader) { 734fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 7350a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7360a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (mColorFilter) { 737fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 7380a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7390a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7400a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7410a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7420a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdStrikeThru_Offset (-6.0f / 21.0f) 7430a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Offset (1.0f / 9.0f) 7440a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy#define kStdUnderline_Thickness (1.0f / 18.0f) 7450a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7460a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guyvoid OpenGLRenderer::drawTextDecorations(const char* text, int bytesCount, float length, 7470a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float x, float y, SkPaint* paint) { 7480a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // Handle underline and strike-through 7490a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy uint32_t flags = paint->getFlags(); 7500a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { 7510a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float underlineWidth = length; 7520a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy // If length is > 0.0f, we already measured the text for the text alignment 7530a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (length <= 0.0f) { 7540a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy underlineWidth = paint->measureText(text, bytesCount); 7550a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7560a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7570a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float offsetX = 0; 7580a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy switch (paint->getTextAlign()) { 7590a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kCenter_Align: 7600a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth * 0.5f; 7610a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 7620a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy case SkPaint::kRight_Align: 7630a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy offsetX = underlineWidth; 7640a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 7650a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy default: 7660a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy break; 7670a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7680a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7690a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (underlineWidth > 0.0f) { 7700a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float textSize = paint->getTextSize(); 7710a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float height = textSize * kStdUnderline_Thickness; 7720a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7730a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float left = x - offsetX; 7740a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float top = 0.0f; 7750a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float right = left + underlineWidth; 7760a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy float bottom = 0.0f; 7770a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7780a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kUnderlineText_Flag) { 7790a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdUnderline_Offset; 7800a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 7810a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 7820a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7830a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 7840a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy if (flags & SkPaint::kStrikeThruText_Flag) { 7850a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy top = y + textSize * kStdStrikeThru_Offset; 7860a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy bottom = top + height; 7870a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy drawRect(left, top, right, bottom, paint); 7880a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7890a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7900a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy } 7910a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy} 7920a41749953f35d33f61b3119e3161a82bb5fa59eRomain Guy 793026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom, 7943d58c03de0d8877b36cdb78b0ca8b5cac7f600e2Romain Guy int color, SkXfermode::Mode mode, bool ignoreTransform) { 795d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // If a shader is set, preserve only the alpha 79606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 797d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy color |= 0x00ffffff; 798d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 799d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 800d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy // Render using pre-multiplied alpha 801026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy const int alpha = (color >> 24) & 0xFF; 802d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy const GLfloat a = alpha / 255.0f; 803c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat r = a * ((color >> 16) & 0xFF) / 255.0f; 804c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat g = a * ((color >> 8) & 0xFF) / 255.0f; 805c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy const GLfloat b = a * ((color ) & 0xFF) / 255.0f; 806c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 80706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureUnit = 0; 8089d5316e3f56d138504565ff311145ac01621dff4Romain Guy 80906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup the blending mode 81006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy chooseBlending(alpha < 255 || (mShader && mShader->blend()), mode); 8119d5316e3f56d138504565ff311145ac01621dff4Romain Guy 81206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Describe the required shaders 813889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 81406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 81506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mShader->describe(description, mExtensions); 816c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy } 817db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 818db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 819db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 820c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 82106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Build and use the appropriate shader 822fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 823c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 82406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes 825fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 826ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, &mMeshVertices[0].position[0]); 827c0ac193b9415680f0a69e20a3f5f22d16f8053beRomain Guy 82806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup uniforms 829889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.loadTranslate(left, top, 0.0f); 830889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy mModelView.scale(right - left, bottom - top, 1.0f); 83106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (!ignoreTransform) { 832fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 833889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } else { 83406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 identity; 835fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, identity); 836889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy } 837fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, r, g, b, a); 838d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 83906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Setup attributes and uniforms required by the shaders 84006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mShader) { 841fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mShader->setupProgram(mCaches.currentProgram, mModelView, *mSnapshot, &textureUnit); 842d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy } 843db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 844fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 845db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 846d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 84706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Draw the mesh 848889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 849d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy} 850d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy 85182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 852a979474f15b454c8e2963f239a3770e200bb227cRomain Guy const Texture* texture, const SkPaint* paint) { 85382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy int alpha; 85482ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy SkXfermode::Mode mode; 85582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy getAlphaAndMode(paint, &alpha, &mode); 85682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 857a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture->id, alpha / 255.0f, mode, texture->blend, 858ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 85985bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy} 86085bf02fc16784d935fb9eebfa9cb20fe46ff7951Romain Guy 861bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guyvoid OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom, 862a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend) { 863a979474f15b454c8e2963f239a3770e200bb227cRomain Guy drawTextureMesh(left, top, right, bottom, texture, alpha, mode, blend, 864ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy &mMeshVertices[0].position[0], &mMeshVertices[0].texture[0], NULL); 865f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy} 866f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy 867f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guyvoid OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom, 868a979474f15b454c8e2963f239a3770e200bb227cRomain Guy GLuint texture, float alpha, SkXfermode::Mode mode, bool blend, 869f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy GLvoid* vertices, GLvoid* texCoords, GLvoid* indices, GLsizei elementsCount) { 870889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy ProgramDescription description; 871889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy description.hasTexture = true; 872db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 873db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy mColorFilter->describe(description, mExtensions); 874db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 875889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 876bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.loadTranslate(left, top, 0.0f); 877bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy mModelView.scale(right - left, bottom - top, 1.0f); 878bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 879fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy useProgram(mCaches.programCache.get(description)); 880fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram->set(mOrthoMatrix, mModelView, mSnapshot->transform); 881bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 882a979474f15b454c8e2963f239a3770e200bb227cRomain Guy chooseBlending(blend || alpha < 1.0f, mode); 883889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy 884889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Texture 88506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy bindTexture(texture, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0); 886fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform1i(mCaches.currentProgram->getUniform("sampler"), 0); 887c1396e93b6a5286a5183c00c781b62e940a12c1fRomain Guy 888a979474f15b454c8e2963f239a3770e200bb227cRomain Guy // Always premultiplied 889fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glUniform4f(mCaches.currentProgram->color, alpha, alpha, alpha, alpha); 890bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 891889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy // Mesh 892fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy int texCoordsSlot = mCaches.currentProgram->getAttrib("texCoords"); 893889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glEnableVertexAttribArray(texCoordsSlot); 894fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy glVertexAttribPointer(mCaches.currentProgram->position, 2, GL_FLOAT, GL_FALSE, 895ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy gMeshStride, vertices); 896889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glVertexAttribPointer(texCoordsSlot, 2, GL_FLOAT, GL_FALSE, gMeshStride, texCoords); 897bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 898db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy // Color filter 899db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy if (mColorFilter) { 900fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mColorFilter->setupProgram(mCaches.currentProgram); 901db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy } 902db1938e0e6ef816e228c815adccebd5cb05f2aa8Romain Guy 903f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy if (!indices) { 904ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount); 905f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } else { 906f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy glDrawElements(GL_TRIANGLES, elementsCount, GL_UNSIGNED_SHORT, indices); 907f7f93556c8fcc640ab5adef79d021a80a72a645aRomain Guy } 908889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glDisableVertexAttribArray(texCoordsSlot); 90982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy} 91082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 91182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guyvoid OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode, bool isPremultiplied) { 91282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy blend = blend || mode != SkXfermode::kSrcOver_Mode; 91382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (blend) { 914fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (!mCaches.blend) { 91582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glEnable(GL_BLEND); 91682ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 91782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 91882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum sourceMode = gBlends[mode].src; 91982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy GLenum destMode = gBlends[mode].dst; 92082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy if (!isPremultiplied && sourceMode == GL_ONE) { 92182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy sourceMode = GL_SRC_ALPHA; 92282ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 92382ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy 924fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) { 92582ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glBlendFunc(sourceMode, destMode); 926fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.lastSrcMode = sourceMode; 927fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.lastDstMode = destMode; 92882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 929fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy } else if (mCaches.blend) { 93082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy glDisable(GL_BLEND); 93182ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy } 932fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.blend = blend; 933bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy} 934bd6b79b40247aea7bfe13d0831c6c0472df6c636Romain Guy 935889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guybool OpenGLRenderer::useProgram(Program* program) { 936d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy if (!program->isInUse()) { 937fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove(); 938d27977d1a91d5a6b3cc9fa7664ac7e835e7bd895Romain Guy program->use(); 939fb8b763f762ae21923c58d64caa729b012f40e05Romain Guy mCaches.currentProgram = program; 9406926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return false; 941260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy } 9426926c72e25b8dec3dd4b84af0819fa1937ae7296Romain Guy return true; 943260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy} 944260e102162322958cf17dbd895cd6bd30dc87e32Romain Guy 945026c5e16704e817cac7d9c382914c947e34f87e0Romain Guyvoid OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) { 946ac670c0433d19397d4e36ced2110475b6f54fe26Romain Guy TextureVertex* v = &mMeshVertices[0]; 94782ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v1); 94882ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v1); 94982ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u1, v2); 95082ba814ca0dea659be2cc6523bc0137679d961ceRomain Guy TextureVertex::setUV(v++, u2, v2); 9518ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy} 9528ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9538ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guyvoid OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) { 9548ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (paint) { 9558ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy const bool isMode = SkXfermode::IsMode(paint->getXfermode(), mode); 9568ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (!isMode) { 9578ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Assume SRC_OVER 9588ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 9598ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 9608ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy 9618ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Skia draws using the color's alpha channel if < 255 9628ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy // Otherwise, it uses the paint's alpha 9638ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy int color = paint->getColor(); 9648ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = (color >> 24) & 0xFF; 9658ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy if (*alpha == 255) { 9668ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = paint->getAlpha(); 9678ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 9688ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } else { 9698ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *mode = SkXfermode::kSrcOver_Mode; 9708ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy *alpha = 255; 9718ba548f81d1ab5f1750cbf86098c4a14e0b8beadRomain Guy } 972026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy} 973026c5e16704e817cac7d9c382914c947e34f87e0Romain Guy 974889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guyvoid OpenGLRenderer::bindTexture(GLuint texture, GLenum wrapS, GLenum wrapT, GLuint textureUnit) { 975889f8d1403761d5668115ced6cbb3f767cfe966dRomain Guy glActiveTexture(gTextureUnits[textureUnit]); 976ae5575b3421c8fbe590ab046d7d5f2b36ecfd821Romain Guy glBindTexture(GL_TEXTURE_2D, texture); 977a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS); 978a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT); 979a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy} 980a1db574036c9bc2d397b69f8200594027e1fff16Romain Guy 9819d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 982e4d011201cea40d46cb2b2eef401db8fddc5c9c6Romain Guy}; // namespace android 983