94 lines
2.1 KiB
C++
94 lines
2.1 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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#ifndef ANDROID_UI_LAYER_H
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#define ANDROID_UI_LAYER_H
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#include <sys/types.h>
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#include <GLES2/gl2.h>
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#include <SkXfermode.h>
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#include "Rect.h"
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namespace android {
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Layers
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///////////////////////////////////////////////////////////////////////////////
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/**
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* A layer has dimensions and is backed by an OpenGL texture or FBO.
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*/
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struct Layer {
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Layer(const uint32_t layerWidth, const uint32_t layerHeight):
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width(layerWidth), height(layerHeight) {
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}
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/**
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* Bounds of the layer.
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*/
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Rect layer;
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/**
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* Texture coordinates of the layer.
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*/
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Rect texCoords;
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/**
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* Name of the FBO used to render the layer. If the name is 0
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* this layer is not backed by an FBO, but a simple texture.
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*/
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GLuint fbo;
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/**
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* Opacity of the layer.
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*/
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int alpha;
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/**
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* Blending mode of the layer.
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*/
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SkXfermode::Mode mode;
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/**
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* Indicates whether this layer should be blended.
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*/
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bool blend;
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/**
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* Indicates whether this layer has been used already.
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*/
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bool empty;
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/**
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* Name of the texture used to render the layer.
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*/
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GLuint texture;
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/**
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* Width of the layer texture.
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*/
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uint32_t width;
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/**
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* Height of the layer texture.
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*/
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uint32_t height;
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}; // struct Layer
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_UI_LAYER_H
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