/*-------------------------------------------------------------------------
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* drawElements Quality Program Reference Renderer
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* -----------------------------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief Primitive packet
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*//*--------------------------------------------------------------------*/
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#include "rrPrimitivePacket.hpp"
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#include "rrVertexPacket.hpp"
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namespace rr
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{
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GeometryEmitter::GeometryEmitter (VertexPacketAllocator& vpalloc, size_t numVertices)
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: m_vpalloc (vpalloc)
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, m_numEmitted (0)
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, m_maxVertices (numVertices)
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{
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}
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void GeometryEmitter::EmitVertex (const tcu::Vec4& position, float pointSize, const GenericVec4* varyings, int primitiveID)
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{
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VertexPacket* packet;
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if (++m_numEmitted > m_maxVertices)
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{
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DE_FATAL("Undefined results, too many vertices emitted.");
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return;
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}
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packet = m_vpalloc.alloc();
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packet->position = position;
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packet->pointSize = pointSize;
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packet->primitiveID = primitiveID;
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for (size_t ndx = 0; ndx < m_vpalloc.getNumVertexOutputs(); ++ndx)
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packet->outputs[ndx] = varyings[ndx];
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m_emitted.push_back(packet);
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}
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void GeometryEmitter::EndPrimitive (void)
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{
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m_numEmitted = 0;
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m_emitted.push_back(DE_NULL);
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}
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void GeometryEmitter::moveEmittedTo (std::vector<VertexPacket*>& output)
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{
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m_emitted.swap(output);
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m_emitted.clear();
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}
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} // rr
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