| /* |
| * 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 |