Romain Guy 5b3b35296e Optimize FBO drawing with regions.
This optimization is currently disabled until Launcher is
modified to take advantage of it. The optimization can be
enabled by turning on RENDER_LAYERS_AS_REGIONS in the
OpenGLRenderer.h file.

Change-Id: I2fdf59d0f4dc690a3d7f712173ab8db3848b27b1
2010-11-02 16:17:23 -07:00

97 lines
2.7 KiB
C++

/*
* 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_HWUI_EXTENSIONS_H
#define ANDROID_HWUI_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_HWUI_EXTENSIONS_H