framework/referencerenderer/rrPrimitivePacket.hpp

   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
  31 namespace rr
  32 {
  33
  34 struct VertexPacket;
  35 class VertexPacketAllocator;
  36
  37 /*--------------------------------------------------------------------*//*!
  38  * \brief Geometry packet
  39  *
  40  * Geometry packet contains inputs for geometry shading.
  41  *//*--------------------------------------------------------------------*/
  42 struct 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  *//*--------------------------------------------------------------------*/
  53 class GeometryEmitter
  54 {
  55 public:
  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
  63 private:
  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