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/*
* Copyright 2013 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 SF_RENDER_ENGINE_DESCRIPTION_H_
#define SF_RENDER_ENGINE_DESCRIPTION_H_
#include <renderengine/Texture.h>
#include <ui/GraphicTypes.h>
namespace android {
namespace renderengine {
/*
* This is the structure that holds the state of the rendering engine.
* This class is used to generate a corresponding GLSL program and set the
* appropriate uniform.
*/
struct Description {
enum class TransferFunction : int {
LINEAR,
SRGB,
ST2084,
HLG, // Hybrid Log-Gamma for HDR.
};
static TransferFunction dataSpaceToTransferFunction(ui::Dataspace dataSpace);
Description() = default;
~Description() = default;
bool hasInputTransformMatrix() const;
bool hasOutputTransformMatrix() const;
bool hasColorMatrix() const;
// whether textures are premultiplied
bool isPremultipliedAlpha = false;
// whether this layer is marked as opaque
bool isOpaque = true;
// corner radius of the layer
float cornerRadius = 0;
// Size of the rounded rectangle we are cropping to
half2 cropSize;
// Texture this layer uses
Texture texture;
bool textureEnabled = false;
// color used when texturing is disabled or when setting alpha.
half4 color;
// true if the sampled pixel values are in Y410/BT2020 rather than RGBA
bool isY410BT2020 = false;
// transfer functions for the input/output
TransferFunction inputTransferFunction = TransferFunction::LINEAR;
TransferFunction outputTransferFunction = TransferFunction::LINEAR;
float displayMaxLuminance;
float maxMasteringLuminance;
float maxContentLuminance;
// projection matrix
mat4 projectionMatrix;
// The color matrix will be applied in linear space right before OETF.
mat4 colorMatrix;
mat4 inputTransformMatrix;
mat4 outputTransformMatrix;
// True if this layer will draw a shadow.
bool drawShadows = false;
};
} // namespace renderengine
} // namespace android
#endif /* SF_RENDER_ENGINE_DESCRIPTION_H_ */
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