1#ifndef _RRPRIMITIVEPACKET_HPP
2#define _RRPRIMITIVEPACKET_HPP
3/*-------------------------------------------------------------------------
4 * drawElements Quality Program Reference Renderer
5 * -----------------------------------------------
6 *
7 * Copyright 2014 The Android Open Source Project
8 *
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
12 *
13 *      http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 *
21 *//*!
22 * \file
23 * \brief Primitive packet
24 *//*--------------------------------------------------------------------*/
25
26#include "rrDefs.hpp"
27#include "rrGenericVector.hpp"
28
29#include <vector>
30
31namespace rr
32{
33
34struct VertexPacket;
35class VertexPacketAllocator;
36
37/*--------------------------------------------------------------------*//*!
38 * \brief Geometry packet
39 *
40 * Geometry packet contains inputs for geometry shading.
41 *//*--------------------------------------------------------------------*/
42struct PrimitivePacket
43{
44	int						primitiveIDIn;
45	const VertexPacket*		vertices[6];
46} DE_WARN_UNUSED_TYPE;
47
48/*--------------------------------------------------------------------*//*!
49 * \brief Geometry emitter
50 *
51 * Geometry emitter handles outputting of new vertices from geometry shader
52 *//*--------------------------------------------------------------------*/
53class GeometryEmitter
54{
55public:
56								GeometryEmitter	(VertexPacketAllocator& vpalloc, size_t numVertices);
57
58	void						EmitVertex		(const tcu::Vec4& position, float pointSize, const GenericVec4* varyings, int primitiveID);
59	void						EndPrimitive	(void);
60
61	void						moveEmittedTo	(std::vector<VertexPacket*>&);
62
63private:
64								GeometryEmitter	(const GeometryEmitter&);
65	GeometryEmitter&			operator=		(const GeometryEmitter&);
66
67	std::vector<VertexPacket*>	m_emitted;	//!< NULL elements mean primitive end
68	VertexPacketAllocator&		m_vpalloc;
69	size_t						m_numEmitted;
70	size_t						m_maxVertices;
71
72} DE_WARN_UNUSED_TYPE;
73
74} // rr
75
76#endif // _RRPRIMITIVEPACKET_HPP
77