1/*-------------------------------------------------------------------------
2 * drawElements Quality Program Reference Renderer
3 * -----------------------------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 *      http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Primitive packet
22 *//*--------------------------------------------------------------------*/
23
24#include "rrPrimitivePacket.hpp"
25
26#include "rrVertexPacket.hpp"
27
28namespace rr
29{
30
31GeometryEmitter::GeometryEmitter (VertexPacketAllocator& vpalloc, size_t numVertices)
32	: m_vpalloc		(vpalloc)
33	, m_numEmitted	(0)
34	, m_maxVertices	(numVertices)
35{
36}
37
38void GeometryEmitter::EmitVertex (const tcu::Vec4& position, float pointSize, const GenericVec4* varyings, int primitiveID)
39{
40	VertexPacket* packet;
41
42	if (++m_numEmitted > m_maxVertices)
43	{
44		DE_FATAL("Undefined results, too many vertices emitted.");
45		return;
46	}
47
48	packet = m_vpalloc.alloc();
49
50	packet->position = position;
51	packet->pointSize = pointSize;
52	packet->primitiveID = primitiveID;
53
54	for (size_t ndx = 0; ndx < m_vpalloc.getNumVertexOutputs(); ++ndx)
55		packet->outputs[ndx] = varyings[ndx];
56
57	m_emitted.push_back(packet);
58}
59
60void GeometryEmitter::EndPrimitive (void)
61{
62	m_numEmitted = 0;
63	m_emitted.push_back(DE_NULL);
64}
65
66void GeometryEmitter::moveEmittedTo (std::vector<VertexPacket*>& output)
67{
68	m_emitted.swap(output);
69	m_emitted.clear();
70}
71
72} // rr
73