Extensions.h revision 9c4b79af221b53f602f946faa9ff317a596a0c39
1bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy/* 2bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * Copyright (C) 2010 The Android Open Source Project 3bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * 4bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * you may not use this file except in compliance with the License. 6bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * You may obtain a copy of the License at 7bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * 8bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * 10bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * Unless required by applicable law or agreed to in writing, software 11bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * See the License for the specific language governing permissions and 14bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy * limitations under the License. 15bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy */ 16bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#ifndef ANDROID_HWUI_EXTENSIONS_H 185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#define ANDROID_HWUI_EXTENSIONS_H 19bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 20bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy#include <utils/SortedVector.h> 21bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy#include <utils/String8.h> 22bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 23bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy#include <GLES2/gl2.h> 24bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy#include <GLES2/gl2ext.h> 25bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 26a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy#include "Debug.h" 27a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy 28bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guynamespace android { 29bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guynamespace uirenderer { 30bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 31a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy/////////////////////////////////////////////////////////////////////////////// 32a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy// Defines 33a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy/////////////////////////////////////////////////////////////////////////////// 34a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 35a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy// Debug 36a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy#if DEBUG_EXTENSIONS 37a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy #define EXT_LOGD(...) LOGD(__VA_ARGS__) 38a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy#else 39a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy #define EXT_LOGD(...) 40a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy#endif 41a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy 42a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy// Vendor strings 43a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy 44a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy#define VENDOR_IMG "Imagination Technologies" 45a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy 46a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy/////////////////////////////////////////////////////////////////////////////// 47a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy// Classes 48a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy/////////////////////////////////////////////////////////////////////////////// 49a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy 50bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guyclass Extensions { 51bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guypublic: 52bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy Extensions() { 53bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy const char* buffer = (const char*) glGetString(GL_EXTENSIONS); 54bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy const char* current = buffer; 55bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy const char* head = current; 56a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy EXT_LOGD("Available GL extensions:"); 57bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy do { 58bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy head = strchr(current, ' '); 59bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy String8 s(current, head ? head - current : strlen(current)); 60bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy if (s.length()) { 61bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy mExtensionList.add(s); 62a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy EXT_LOGD(" %s", s.string()); 63bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy } 64bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy current = head + 1; 65bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy } while (head); 66bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 67bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy mHasNPot = hasExtension("GL_OES_texture_npot"); 68a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy mHasFramebufferFetch = hasExtension("GL_NV_shader_framebuffer_fetch"); 699c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy mHasDiscardFramebuffer = hasExtension("GL_EXT_discard_framebuffer"); 7051769a68a5cb34e9564740c6a854fcb93018789dRomain Guy 71a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy const char* vendor = (const char*) glGetString(GL_VENDOR); 72a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy EXT_LOGD("Vendor: %s", vendor); 73a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy mNeedsHighpTexCoords = strcmp(vendor, VENDOR_IMG) == 0; 74a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy 75a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy // We don't need to copy the string, the OpenGL ES spec 76a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy // guarantees the result of glGetString to point to a 77a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy // static string as long as our OpenGL context is valid 7851769a68a5cb34e9564740c6a854fcb93018789dRomain Guy mExtensions = buffer; 79bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy } 80bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 81bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy inline bool hasNPot() const { return mHasNPot; } 82a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy inline bool hasFramebufferFetch() const { return mHasFramebufferFetch; } 83a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy inline bool needsHighpTexCoords() const { return mNeedsHighpTexCoords; } 849c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy inline bool hasDiscardFramebuffer() const { return mHasDiscardFramebuffer; } 85bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 86bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy bool hasExtension(const char* extension) const { 87bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy const String8 s(extension); 88bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy return mExtensionList.indexOf(s) >= 0; 89bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy } 90bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 9151769a68a5cb34e9564740c6a854fcb93018789dRomain Guy void dump() { 9251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy LOGD("Supported extensions:\n%s", mExtensions); 9351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy } 9451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy 95bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guyprivate: 96bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy SortedVector<String8> mExtensionList; 97bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 9851769a68a5cb34e9564740c6a854fcb93018789dRomain Guy const char* mExtensions; 9951769a68a5cb34e9564740c6a854fcb93018789dRomain Guy 100bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy bool mHasNPot; 101a60c3889718f4513a6c9d8b80f655db5d6346905Romain Guy bool mNeedsHighpTexCoords; 102a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5Romain Guy bool mHasFramebufferFetch; 1039c4b79af221b53f602f946faa9ff317a596a0c39Romain Guy bool mHasDiscardFramebuffer; 104bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy}; // class Extensions 105bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 106bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy}; // namespace uirenderer 107bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy}; // namespace android 108bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 1095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_EXTENSIONS_H 110