LayerBlur.cpp revision 6158b1bf0364da1582468a98ec09d004ba99deec
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdlib.h> 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdint.h> 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/types.h> 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Errors.h> 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Log.h> 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <GLES/gl.h> 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <GLES/glext.h> 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "BlurFilter.h" 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "LayerBlur.h" 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "SurfaceFlinger.h" 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "DisplayHardware/DisplayHardware.h" 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// --------------------------------------------------------------------------- 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectconst uint32_t LayerBlur::typeInfo = LayerBaseClient::typeInfo | 8; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectconst char* const LayerBlur::typeID = "LayerBlur"; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// --------------------------------------------------------------------------- 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectLayerBlur::LayerBlur(SurfaceFlinger* flinger, DisplayID display, 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Client* client, int32_t i) 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : LayerBaseClient(flinger, display, client, i), mCacheDirty(true), 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRefreshCache(true), mCacheAge(0), mTextureName(-1U) 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectLayerBlur::~LayerBlur() 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextureName != -1U) { 5081b0aa696ac954180caec6cb8cc1bb97440e03b5Mathias Agopian glDeleteTextures(1, &mTextureName); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid LayerBlur::setVisibleRegion(const Region& visibleRegion) 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayerBaseClient::setVisibleRegion(visibleRegion); 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (visibleRegionScreen.isEmpty()) { 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextureName != -1U) { 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We're not visible, free the texture up. 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glBindTexture(GL_TEXTURE_2D, 0); 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDeleteTextures(1, &mTextureName); 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextureName = -1U; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t LayerBlur::doTransaction(uint32_t flags) 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we're doing a transaction, refresh the cache! 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlinger->isFrozen()) { 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRefreshCache = true; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCacheDirty = true; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project flags |= eVisibleRegion; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this->contentDirty = true; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return LayerBase::doTransaction(flags); 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid LayerBlur::unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion) 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // this code-path must be as tight as possible, it's called each time 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the screen is composited. 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (UNLIKELY(!visibleRegionScreen.isEmpty())) { 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if anything visible below us is invalidated, the cache becomes dirty 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mCacheDirty && 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project !visibleRegionScreen.intersect(outDirtyRegion).isEmpty()) { 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCacheDirty = true; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheDirty) { 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlinger->isFrozen()) { 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // update everything below us that is visible 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project outDirtyRegion.orSelf(visibleRegionScreen); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nsecs_t now = systemTime(); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((now - mCacheAge) >= ms2ns(500)) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCacheAge = now; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRefreshCache = true; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCacheDirty = false; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mAutoRefreshPending) { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlinger->signalDelayedEvent(ms2ns(500)); 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAutoRefreshPending = true; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayerBase::unlockPageFlip(planeTransform, outDirtyRegion); 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid LayerBlur::onDraw(const Region& clip) const 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const uint32_t fbHeight = hw.getHeight(); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x = mTransformedBounds.left; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int y = mTransformedBounds.top; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int w = mTransformedBounds.width(); 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int h = mTransformedBounds.height(); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GLint X = x; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GLint Y = fbHeight - (y + h); 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (X < 0) { 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project w += X; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project X = 0; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Y < 0) { 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project h += Y; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Y = 0; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (w<0 || h<0) { 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we're outside of the framebuffer 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextureName == -1U) { 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // create the texture name the first time 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // can't do that in the ctor, because it runs in another thread. 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glGenTextures(1, &mTextureName); 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1396158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian Region::const_iterator it = clip.begin(); 1406158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian Region::const_iterator const end = clip.end(); 1416158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian if (it != end) { 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glEnable(GL_TEXTURE_2D); 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glBindTexture(GL_TEXTURE_2D, mTextureName); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRefreshCache) { 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRefreshCache = false; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAutoRefreshPending = false; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // allocate enough memory for 4-bytes (2 pixels) aligned data 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int32_t s = (w + 1) & ~1; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint16_t* const pixels = (uint16_t*)malloc(s*h*2); 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This reads the frame-buffer, so a h/w GL would have to 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // finish() its rendering first. we don't want to do that 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // too often. Read data is 4-bytes aligned. 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glReadPixels(X, Y, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, pixels); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // blur that texture. 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GGLSurface bl; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bl.version = sizeof(GGLSurface); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bl.width = w; 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bl.height = h; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bl.stride = s; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bl.format = GGL_PIXEL_FORMAT_RGB_565; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bl.data = (GGLubyte*)pixels; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project blurFilter(&bl, 8, 2); 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // NOTE: this works only because we have POT. we'd have to round the 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // texture size up, otherwise. 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GL_RGB, GL_UNSIGNED_SHORT_5_6_5, pixels); 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project free((void*)pixels); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const State& s = drawingState(); 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (UNLIKELY(s.alpha < 0xFF)) { 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const GGLfixed alpha = (s.alpha << 16)/255; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glColor4x(0, 0, 0, alpha); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glEnable(GL_BLEND); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDisable(GL_BLEND); 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDisable(GL_DITHER); 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (UNLIKELY(transformed() 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || !(mFlags & DisplayHardware::DRAW_TEXTURE_EXTENSION) )) { 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is a very rare scenario. 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glMatrixMode(GL_TEXTURE); 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glLoadIdentity(); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glScalef(1.0f/w, -1.0f/h, 1); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTranslatef(-x, -y, 0); 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glEnableClientState(GL_TEXTURE_COORD_ARRAY); 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glVertexPointer(2, GL_FIXED, 0, mVertices); 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glTexCoordPointer(2, GL_FIXED, 0, mVertices); 2026158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian while (it != end) { 2036158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian const Rect& r = *it++; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const GLint sy = fbHeight - (r.top + r.height()); 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glScissor(r.left, sy, r.width(), r.height()); 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2096158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian // NOTE: this is marginally faster with the software gl, because 2106158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian // glReadPixels() reads the fb bottom-to-top, however we'll 2116158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian // skip all the jaccobian computations. 2126158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian Rect r; 2136158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian GLint crop[4] = { 0, 0, w, h }; 2146158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop); 2156158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian y = fbHeight - (y + h); 2166158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian while (it != end) { 2176158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian const Rect& r = *it++; 2186158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian const GLint sy = fbHeight - (r.top + r.height()); 2196158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian glScissor(r.left, sy, r.width(), r.height()); 2206158b1bf0364da1582468a98ec09d004ba99deecMathias Agopian glDrawTexiOES(x, y, 0, w, h); 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// --------------------------------------------------------------------------- 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 231