blob: a8df5d0523044ec0ec3f55e7c4d7176656b08fc7 [file] [log] [blame]
#ifndef _RRPRIMITIVEPACKET_HPP
#define _RRPRIMITIVEPACKET_HPP
/*-------------------------------------------------------------------------
* drawElements Quality Program Reference Renderer
* -----------------------------------------------
*
* Copyright 2014 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.
*
*//*!
* \file
* \brief Primitive packet
*//*--------------------------------------------------------------------*/
#include "rrDefs.hpp"
#include "rrGenericVector.hpp"
#include <vector>
namespace rr
{
struct VertexPacket;
class VertexPacketAllocator;
/*--------------------------------------------------------------------*//*!
* \brief Geometry packet
*
* Geometry packet contains inputs for geometry shading.
*//*--------------------------------------------------------------------*/
struct PrimitivePacket
{
int primitiveIDIn;
const VertexPacket* vertices[6];
} DE_WARN_UNUSED_TYPE;
/*--------------------------------------------------------------------*//*!
* \brief Geometry emitter
*
* Geometry emitter handles outputting of new vertices from geometry shader
*//*--------------------------------------------------------------------*/
class GeometryEmitter
{
public:
GeometryEmitter (VertexPacketAllocator& vpalloc, size_t numVertices);
void EmitVertex (const tcu::Vec4& position, float pointSize, const GenericVec4* varyings, int primitiveID);
void EndPrimitive (void);
void moveEmittedTo (std::vector<VertexPacket*>&);
private:
GeometryEmitter (const GeometryEmitter&);
GeometryEmitter& operator= (const GeometryEmitter&);
std::vector<VertexPacket*> m_emitted; //!< NULL elements mean primitive end
VertexPacketAllocator& m_vpalloc;
size_t m_numEmitted;
size_t m_maxVertices;
} DE_WARN_UNUSED_TYPE;
} // rr
#endif // _RRPRIMITIVEPACKET_HPP