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Diffstat (limited to 'libs/hwui/Extensions.h')
-rw-r--r-- | libs/hwui/Extensions.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/libs/hwui/Extensions.h b/libs/hwui/Extensions.h new file mode 100644 index 0000000..d50d36e --- /dev/null +++ b/libs/hwui/Extensions.h @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ANDROID_UI_EXTENSIONS_H +#define ANDROID_UI_EXTENSIONS_H + +#include <utils/SortedVector.h> +#include <utils/String8.h> + +#include <GLES2/gl2.h> +#include <GLES2/gl2ext.h> + +namespace android { +namespace uirenderer { + +/////////////////////////////////////////////////////////////////////////////// +// Defines +/////////////////////////////////////////////////////////////////////////////// + +// Debug +#define DEBUG_EXTENSIONS 0 + +// Debug +#if DEBUG_EXTENSIONS + #define EXT_LOGD(...) LOGD(__VA_ARGS__) +#else + #define EXT_LOGD(...) +#endif + +class Extensions { +public: + Extensions() { + const char* buffer = (const char*) glGetString(GL_EXTENSIONS); + const char* current = buffer; + const char* head = current; + EXT_LOGD("Available GL extensions:"); + do { + head = strchr(current, ' '); + String8 s(current, head ? head - current : strlen(current)); + if (s.length()) { + mExtensionList.add(s); + EXT_LOGD(" %s", s.string()); + } + current = head + 1; + } while (head); + + mHasNPot = hasExtension("GL_OES_texture_npot"); + mHasDrawPath = hasExtension("GL_NV_draw_path"); + mHasCoverageSample = hasExtension("GL_NV_coverage_sample"); + mHasFramebufferFetch = hasExtension("GL_NV_shader_framebuffer_fetch"); + + mExtensions = buffer; + } + + inline bool hasNPot() const { return mHasNPot; } + inline bool hasDrawPath() const { return mHasDrawPath; } + inline bool hasCoverageSample() const { return mHasCoverageSample; } + inline bool hasFramebufferFetch() const { return mHasFramebufferFetch; } + + bool hasExtension(const char* extension) const { + const String8 s(extension); + return mExtensionList.indexOf(s) >= 0; + } + + void dump() { + LOGD("Supported extensions:\n%s", mExtensions); + } + +private: + SortedVector<String8> mExtensionList; + + const char* mExtensions; + + bool mHasNPot; + bool mHasDrawPath; + bool mHasCoverageSample; + bool mHasFramebufferFetch; +}; // class Extensions + +}; // namespace uirenderer +}; // namespace android + +#endif // ANDROID_UI_EXTENSIONS_H |