44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "Debug.h"
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#include "GammaFontRenderer.h"
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#include "Properties.h"
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namespace android {
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namespace uirenderer {
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GammaFontRenderer::GammaFontRenderer() {
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INIT_LOGD("Creating lookup gamma font renderer");
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#ifndef ANDROID_ENABLE_LINEAR_BLENDING
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// Compute the gamma tables
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const float gamma = 1.0f / Properties::textGamma;
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for (uint32_t i = 0; i <= 255; i++) {
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mGammaTable[i] = uint8_t((float)::floor(pow(i / 255.0f, gamma) * 255.0f + 0.5f));
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}
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#endif
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}
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void GammaFontRenderer::endPrecaching() {
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if (mRenderer) {
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mRenderer->endPrecaching();
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}
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}
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}; // namespace uirenderer
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}; // namespace android
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