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/*
* 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.
*/
#include "Debug.h"
#include "GammaFontRenderer.h"
#include "Properties.h"
namespace android {
namespace uirenderer {
GammaFontRenderer::GammaFontRenderer() {
INIT_LOGD("Creating lookup gamma font renderer");
#ifndef ANDROID_ENABLE_LINEAR_BLENDING
// Compute the gamma tables
const float gamma = 1.0f / Properties::textGamma;
for (uint32_t i = 0; i <= 255; i++) {
mGammaTable[i] = uint8_t((float)::floor(pow(i / 255.0f, gamma) * 255.0f + 0.5f));
}
#endif
}
void GammaFontRenderer::endPrecaching() {
if (mRenderer) {
mRenderer->endPrecaching();
}
}
}; // namespace uirenderer
}; // namespace android
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