Patch.cpp revision 5e7c469c7a3039af7696789a797f8d91a45227eb
1fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy/* 2fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * Copyright (C) 2010 The Android Open Source Project 3fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * 4fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * you may not use this file except in compliance with the License. 6fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * You may obtain a copy of the License at 7fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * 8fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * http://www.apache.org/licenses/LICENSE-2.0 9fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * 10fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * Unless required by applicable law or agreed to in writing, software 11fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * See the License for the specific language governing permissions and 14fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy * limitations under the License. 15fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy */ 16fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 17fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy#define LOG_TAG "OpenGLRenderer" 18fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 196820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy#include <cmath> 20fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 214bb942083a0d4db746adf95349108dd8ef842e32Romain Guy#include <utils/Log.h> 224bb942083a0d4db746adf95349108dd8ef842e32Romain Guy 23fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy#include "Patch.h" 2403750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy#include "Caches.h" 25a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#include "Properties.h" 26fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 27fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guynamespace android { 28fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guynamespace uirenderer { 29fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 30fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy/////////////////////////////////////////////////////////////////////////////// 31fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy// Constructors/destructor 32fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy/////////////////////////////////////////////////////////////////////////////// 33fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 346f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain GuyPatch::Patch(const uint32_t xCount, const uint32_t yCount, const int8_t emptyQuads): 35a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy mXCount(xCount), mYCount(yCount), mEmptyQuads(emptyQuads) { 36a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy // Initialized with the maximum number of vertices we will need 37fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy // 2 triangles per patch, 3 vertices per triangle 388ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy uint32_t maxVertices = ((xCount + 1) * (yCount + 1) - emptyQuads) * 2 * 3; 39a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy mVertices = new TextureVertex[maxVertices]; 406f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy mUploaded = false; 416f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 42a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy verticesCount = 0; 43a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy hasEmptyQuads = emptyQuads > 0; 44a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy 456f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy mColorKey = 0; 466f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy mXDivs = new int32_t[mXCount]; 476f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy mYDivs = new int32_t[mYCount]; 4803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 49a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy PATCH_LOGD(" patch: xCount = %d, yCount = %d, emptyQuads = %d, max vertices = %d", 50a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy xCount, yCount, emptyQuads, maxVertices); 51bd41a11078e94b755c8b6f78e1e4242c715fccd4Romain Guy 5203750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glGenBuffers(1, &meshBuffer); 53fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy} 54fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 55fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain GuyPatch::~Patch() { 5603750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy delete[] mVertices; 576f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy delete[] mXDivs; 586f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy delete[] mYDivs; 5903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy glDeleteBuffers(1, &meshBuffer); 60fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy} 61fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 62fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy/////////////////////////////////////////////////////////////////////////////// 636f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy// Patch management 646f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy/////////////////////////////////////////////////////////////////////////////// 656f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 666f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guyvoid Patch::copy(const int32_t* xDivs, const int32_t* yDivs) { 676f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy memcpy(mXDivs, xDivs, mXCount * sizeof(int32_t)); 686f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy memcpy(mYDivs, yDivs, mYCount * sizeof(int32_t)); 696f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy} 706f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 716f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guyvoid Patch::copy(const int32_t* yDivs) { 726f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy memcpy(mYDivs, yDivs, mYCount * sizeof(int32_t)); 736f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy} 746f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 756f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guyvoid Patch::updateColorKey(const uint32_t colorKey) { 766f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy mColorKey = colorKey; 776f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy} 786f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 796f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guybool Patch::matches(const int32_t* xDivs, const int32_t* yDivs, const uint32_t colorKey) { 806f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy if (mColorKey != colorKey) { 816f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy updateColorKey(colorKey); 826f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy copy(xDivs, yDivs); 836f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy return false; 846f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy } 856f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 866f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy for (uint32_t i = 0; i < mXCount; i++) { 876f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy if (mXDivs[i] != xDivs[i]) { 886f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy // The Y divs may or may not match, copy everything 896f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy copy(xDivs, yDivs); 906f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy return false; 916f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy } 926f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy } 936f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 946f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy for (uint32_t i = 0; i < mYCount; i++) { 956f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy if (mYDivs[i] != yDivs[i]) { 966f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy // We know all the X divs match, copy only Y divs 976f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy copy(yDivs); 986f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy return false; 996f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy } 1006f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy } 1016f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 1026f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy return true; 1036f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy} 1046f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy 1056f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy/////////////////////////////////////////////////////////////////////////////// 106fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy// Vertices management 107fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy/////////////////////////////////////////////////////////////////////////////// 108fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 109759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid Patch::updateVertices(const float bitmapWidth, const float bitmapHeight, 1106f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy float left, float top, float right, float bottom) { 111a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#if RENDER_LAYERS_AS_REGIONS 1125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (hasEmptyQuads) quads.clear(); 113a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#endif 114a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy 115a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy // Reset the vertices count here, we will count exactly how many 116a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy // vertices we actually need when generating the quads 117a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy verticesCount = 0; 1185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 1196f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy const uint32_t xStretchCount = (mXCount + 1) >> 1; 1206f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy const uint32_t yStretchCount = (mYCount + 1) >> 1; 121fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 1226820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float stretchX = 0.0f; 1236820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float stretchY = 0.0; 124fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 125fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy const float meshWidth = right - left; 126fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 127fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy if (xStretchCount > 0) { 128fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy uint32_t stretchSize = 0; 1296f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy for (uint32_t i = 1; i < mXCount; i += 2) { 1306f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy stretchSize += mXDivs[i] - mXDivs[i - 1]; 131fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 1326820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy const float xStretchTex = stretchSize; 133fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy const float fixed = bitmapWidth - stretchSize; 1346820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy const float xStretch = right - left - fixed; 1356820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy stretchX = xStretch / xStretchTex; 136fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 137fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 138fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy if (yStretchCount > 0) { 139fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy uint32_t stretchSize = 0; 1406f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy for (uint32_t i = 1; i < mYCount; i += 2) { 1416f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy stretchSize += mYDivs[i] - mYDivs[i - 1]; 142fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 1436820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy const float yStretchTex = stretchSize; 144fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy const float fixed = bitmapHeight - stretchSize; 1456820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy const float yStretch = bottom - top - fixed; 1466820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy stretchY = yStretch / yStretchTex; 147fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 148fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 14903750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy TextureVertex* vertex = mVertices; 1504bb942083a0d4db746adf95349108dd8ef842e32Romain Guy uint32_t quadCount = 0; 151fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 1526820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float previousStepY = 0.0f; 153fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 1546820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float y1 = 0.0f; 155f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy float y2 = 0.0f; 1566820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float v1 = 0.0f; 1576820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 158eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy for (uint32_t i = 0; i < mYCount; i++) { 1596f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy float stepY = mYDivs[i]; 1605e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy const float segment = stepY - previousStepY; 1616820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 1626820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy if (i & 1) { 1638ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy y2 = y1 + floorf(segment * stretchY + 0.5f); 164fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } else { 1655e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy y2 = y1 + segment; 166fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 1675e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy 1685e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy float vOffset = y1 == y2 ? 0.0f : 0.5 - (0.5 * segment / (y2 - y1)); 1695e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy float v2 = fmax(0.0f, stepY - vOffset) / bitmapHeight; 1705e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy v1 += vOffset / bitmapHeight; 1716820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 172eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy if (stepY > 0.0f) { 173f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#if DEBUG_EXPLODE_PATCHES 174f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy y1 += i * EXPLODE_GAP; 175f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy y2 += i * EXPLODE_GAP; 176f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#endif 177eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy generateRow(vertex, y1, y2, v1, v2, stretchX, right - left, 178eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy bitmapWidth, quadCount); 179f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#if DEBUG_EXPLODE_PATCHES 180f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy y2 -= i * EXPLODE_GAP; 181f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#endif 182eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy } 1836820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 1846820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy y1 = y2; 1855e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy v1 = stepY / bitmapHeight; 1866820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 1876820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy previousStepY = stepY; 188fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 189fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 190fdbec3e4828f93bfa5cde758ad0e77b89c5c2ecdRomain Guy if (previousStepY != bitmapHeight) { 191f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy y2 = bottom - top; 192f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#if DEBUG_EXPLODE_PATCHES 193f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy y1 += mYCount * EXPLODE_GAP; 194f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy y2 += mYCount * EXPLODE_GAP; 195f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#endif 1965e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy generateRow(vertex, y1, y2, v1, 1.0f, stretchX, right - left, bitmapWidth, quadCount); 197fdbec3e4828f93bfa5cde758ad0e77b89c5c2ecdRomain Guy } 19803750a067e818ca7fbd0f590e2ff6a8fded21e6cRomain Guy 199a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy if (verticesCount > 0) { 200a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy Caches::getInstance().bindMeshBuffer(meshBuffer); 201a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy if (!mUploaded) { 202a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy glBufferData(GL_ARRAY_BUFFER, sizeof(TextureVertex) * verticesCount, 203a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy mVertices, GL_DYNAMIC_DRAW); 204a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy mUploaded = true; 205a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy } else { 206a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy glBufferSubData(GL_ARRAY_BUFFER, 0, 207a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy sizeof(TextureVertex) * verticesCount, mVertices); 208a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy } 2096f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy } 210a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy 211a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy PATCH_LOGD(" patch: new vertices count = %d", verticesCount); 212fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy} 213fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 2145b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guyvoid Patch::generateRow(TextureVertex*& vertex, float y1, float y2, float v1, float v2, 215eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy float stretchX, float width, float bitmapWidth, uint32_t& quadCount) { 2166820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float previousStepX = 0.0f; 2176820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 2186820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float x1 = 0.0f; 219f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy float x2 = 0.0f; 2206820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy float u1 = 0.0f; 221fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 2226820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy // Generate the row quad by quad 223eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy for (uint32_t i = 0; i < mXCount; i++) { 2246f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cdRomain Guy float stepX = mXDivs[i]; 2255e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy const float segment = stepX - previousStepX; 226fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 2276820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy if (i & 1) { 2288ab4079ca27e36e5c584495bcd71b573598ac021Romain Guy x2 = x1 + floorf(segment * stretchX + 0.5f); 229fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } else { 2305e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy x2 = x1 + segment; 231fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 2325e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy 2335e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy float uOffset = x1 == x2 ? 0.0f : 0.5 - (0.5 * segment / (x2 - x1)); 2345e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy float u2 = fmax(0.0f, stepX - uOffset) / bitmapWidth; 2355e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy u1 += uOffset / bitmapWidth; 236fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 237eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy if (stepX > 0.0f) { 238f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#if DEBUG_EXPLODE_PATCHES 239f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy x1 += i * EXPLODE_GAP; 240f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy x2 += i * EXPLODE_GAP; 241f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#endif 242eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy generateQuad(vertex, x1, y1, x2, y2, u1, v1, u2, v2, quadCount); 243f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#if DEBUG_EXPLODE_PATCHES 244f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy x2 -= i * EXPLODE_GAP; 245f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#endif 246eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy } 2476820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 2486820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy x1 = x2; 2495e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy u1 = stepX / bitmapWidth; 2506820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 2516820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy previousStepX = stepX; 252fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy } 253fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 254fdbec3e4828f93bfa5cde758ad0e77b89c5c2ecdRomain Guy if (previousStepX != bitmapWidth) { 255f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy x2 = width; 256f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#if DEBUG_EXPLODE_PATCHES 257f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy x1 += mXCount * EXPLODE_GAP; 258f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy x2 += mXCount * EXPLODE_GAP; 259f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy#endif 260f504a2fa144504ca1efd39a4ef9208e3d4d336c5Romain Guy generateQuad(vertex, x1, y1, x2, y2, u1, v1, 1.0f, v2, quadCount); 261fdbec3e4828f93bfa5cde758ad0e77b89c5c2ecdRomain Guy } 262fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy} 263fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 2647444da512680df0c52af39ea521e35adbe0c167dRomain Guyvoid Patch::generateQuad(TextureVertex*& vertex, float x1, float y1, float x2, float y2, 265eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy float u1, float v1, float u2, float v2, uint32_t& quadCount) { 266a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy const uint32_t oldQuadCount = quadCount; 267eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy quadCount++; 268bd41a11078e94b755c8b6f78e1e4242c715fccd4Romain Guy 269a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy // Skip degenerate and transparent (empty) quads 270eb6a4a17a07f1aa41bd58d418b2982cddb97685aRomain Guy if ((mColorKey >> oldQuadCount) & 0x1) { 271fb13abd800cd610c7f46815848545feff83e5748Romain Guy#if DEBUG_PATCHES_EMPTY_VERTICES 272fb13abd800cd610c7f46815848545feff83e5748Romain Guy PATCH_LOGD(" quad %d (empty)", oldQuadCount); 2735e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy PATCH_LOGD(" left, top = %.2f, %.2f\t\tu1, v1 = %.4f, %.4f", x1, y1, u1, v1); 2745e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy PATCH_LOGD(" right, bottom = %.2f, %.2f\t\tu2, v2 = %.4f, %.4f", x2, y2, u2, v2); 275fb13abd800cd610c7f46815848545feff83e5748Romain Guy#endif 2767444da512680df0c52af39ea521e35adbe0c167dRomain Guy return; 2774bb942083a0d4db746adf95349108dd8ef842e32Romain Guy } 2784bb942083a0d4db746adf95349108dd8ef842e32Romain Guy 279a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#if RENDER_LAYERS_AS_REGIONS 280a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy // Record all non empty quads 2815b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy if (hasEmptyQuads) { 2825b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect bounds(x1, y1, x2, y2); 2835b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy quads.add(bounds); 2845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 285a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#endif 2865b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 2876820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy // Left triangle 2886820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy TextureVertex::set(vertex++, x1, y1, u1, v1); 2896820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy TextureVertex::set(vertex++, x2, y1, u2, v1); 2906820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy TextureVertex::set(vertex++, x1, y2, u1, v2); 2916820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy 2926820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy // Right triangle 2936820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy TextureVertex::set(vertex++, x1, y2, u1, v2); 2946820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy TextureVertex::set(vertex++, x2, y1, u2, v1); 2956820ac8b14b4558f5d8b833dde80895306a3e137Romain Guy TextureVertex::set(vertex++, x2, y2, u2, v2); 296a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy 297a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy // A quad is made of 2 triangles, 6 vertices 298a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy verticesCount += 6; 299a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy 300a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#if DEBUG_PATCHES_VERTICES 301a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy PATCH_LOGD(" quad %d", oldQuadCount); 3025e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy PATCH_LOGD(" left, top = %.2f, %.2f\t\tu1, v1 = %.4f, %.4f", x1, y1, u1, v1); 3035e7c469c7a3039af7696789a797f8d91a45227ebRomain Guy PATCH_LOGD(" right, bottom = %.2f, %.2f\t\tu2, v2 = %.4f, %.4f", x2, y2, u2, v2); 304a5ef39a21683189e5906c9f252b997f0508e350dRomain Guy#endif 305fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy} 306fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy 307fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy}; // namespace uirenderer 308fb5e23c327cd5f8f93d1eaa7c10f34d6fd3efb6cRomain Guy}; // namespace android 309