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/*
* Copyright (C) 2011 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_DRAW_GL_INFO_H
#define ANDROID_HWUI_DRAW_GL_INFO_H
namespace android {
namespace uirenderer {
/**
* Structure used by OpenGLRenderer::callDrawGLFunction() to pass and
* receive data from OpenGL functors.
*/
struct DrawGlInfo {
// Input: current clip rect
int clipLeft;
int clipTop;
int clipRight;
int clipBottom;
// Input: is the render target an FBO
bool isLayer;
// Input: current transform matrix, in OpenGL format
float transform[16];
// Output: dirty region to redraw
float dirtyLeft;
float dirtyTop;
float dirtyRight;
float dirtyBottom;
/**
* Values used by OpenGL functors to tell the framework
* what to do next.
*/
enum Status {
// The functor is done
kStatusDone,
// The functor is requesting a redraw (the clip rect
// used by the redraw is specified by DrawGlInfo.)
// The rest of the UI might redraw too.
kStatusDraw,
// The functor needs to be invoked again but will
// not redraw. Only the functor is invoked again
// (unless another functor requests a redraw.)
kStatusInvoke
};
}; // struct DrawGlInfo
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_DRAW_GL_INFO_H
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