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/*
* Copyright (C) 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 ANDROID_HWUI_SHADOW_TESSELLATOR_H
#define ANDROID_HWUI_SHADOW_TESSELLATOR_H
#include "Debug.h"
#include "Matrix.h"
namespace android {
namespace uirenderer {
class ShadowTessellator {
public:
static void tessellateAmbientShadow(float width, float height,
const mat4& casterTransform, VertexBuffer& shadowVertexBuffer);
static void tessellateSpotShadow(float width, float height,
const Vector3& lightPosScale, const mat4& receiverTransform,
int screenWidth, int screenHeight, const mat4& casterTransform,
VertexBuffer& shadowVertexBuffer);
private:
static void generateCasterPolygon(float width, float height,
const mat4& casterTransform, int vertexCount, Vector3* polygon);
}; // ShadowTessellator
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_SHADOW_TESSELLATOR_H
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