1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_HWUI_EXTENSIONS_H 18 #define ANDROID_HWUI_EXTENSIONS_H 19 20 #include <utils/SortedVector.h> 21 #include <utils/String8.h> 22 23 #include <GLES2/gl2.h> 24 #include <GLES2/gl2ext.h> 25 26 #include "Debug.h" 27 28 namespace android { 29 namespace uirenderer { 30 31 /////////////////////////////////////////////////////////////////////////////// 32 // Defines 33 /////////////////////////////////////////////////////////////////////////////// 34 35 // Debug 36 #if DEBUG_EXTENSIONS 37 #define EXT_LOGD(...) ALOGD(__VA_ARGS__) 38 #else 39 #define EXT_LOGD(...) 40 #endif 41 42 /////////////////////////////////////////////////////////////////////////////// 43 // Classes 44 /////////////////////////////////////////////////////////////////////////////// 45 46 class Extensions { 47 public: Extensions()48 Extensions() { 49 const char* buffer = (const char*) glGetString(GL_EXTENSIONS); 50 const char* current = buffer; 51 const char* head = current; 52 EXT_LOGD("Available GL extensions:"); 53 do { 54 head = strchr(current, ' '); 55 String8 s(current, head ? head - current : strlen(current)); 56 if (s.length()) { 57 mExtensionList.add(s); 58 EXT_LOGD(" %s", s.string()); 59 } 60 current = head + 1; 61 } while (head); 62 63 mHasNPot = hasExtension("GL_OES_texture_npot"); 64 mHasFramebufferFetch = hasExtension("GL_NV_shader_framebuffer_fetch"); 65 mHasDiscardFramebuffer = hasExtension("GL_EXT_discard_framebuffer"); 66 mHasDebugMarker = hasExtension("GL_EXT_debug_marker"); 67 mHasDebugLabel = hasExtension("GL_EXT_debug_label"); 68 mHasTiledRendering = hasExtension("GL_QCOM_tiled_rendering"); 69 70 mExtensions = strdup(buffer); 71 } 72 ~Extensions()73 ~Extensions() { 74 free(mExtensions); 75 } 76 hasNPot()77 inline bool hasNPot() const { return mHasNPot; } hasFramebufferFetch()78 inline bool hasFramebufferFetch() const { return mHasFramebufferFetch; } hasDiscardFramebuffer()79 inline bool hasDiscardFramebuffer() const { return mHasDiscardFramebuffer; } hasDebugMarker()80 inline bool hasDebugMarker() const { return mHasDebugMarker; } hasDebugLabel()81 inline bool hasDebugLabel() const { return mHasDebugLabel; } hasTiledRendering()82 inline bool hasTiledRendering() const { return mHasTiledRendering; } 83 hasExtension(const char * extension)84 bool hasExtension(const char* extension) const { 85 const String8 s(extension); 86 return mExtensionList.indexOf(s) >= 0; 87 } 88 dump()89 void dump() { 90 ALOGD("Supported extensions:\n%s", mExtensions); 91 } 92 93 private: 94 SortedVector<String8> mExtensionList; 95 96 char* mExtensions; 97 98 bool mHasNPot; 99 bool mHasFramebufferFetch; 100 bool mHasDiscardFramebuffer; 101 bool mHasDebugMarker; 102 bool mHasDebugLabel; 103 bool mHasTiledRendering; 104 }; // class Extensions 105 106 }; // namespace uirenderer 107 }; // namespace android 108 109 #endif // ANDROID_HWUI_EXTENSIONS_H 110