13c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#ifndef _RRVERTEXATTRIB_HPP 23c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#define _RRVERTEXATTRIB_HPP 33c827367444ee418f129b2c238299f49d3264554Jarkko Poyry/*------------------------------------------------------------------------- 43c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * drawElements Quality Program Reference Renderer 53c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * ----------------------------------------------- 63c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 73c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Copyright 2014 The Android Open Source Project 83c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 93c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Licensed under the Apache License, Version 2.0 (the "License"); 103c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * you may not use this file except in compliance with the License. 113c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * You may obtain a copy of the License at 123c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 133c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * http://www.apache.org/licenses/LICENSE-2.0 143c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 153c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Unless required by applicable law or agreed to in writing, software 163c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * distributed under the License is distributed on an "AS IS" BASIS, 173c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 183c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * See the License for the specific language governing permissions and 193c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * limitations under the License. 203c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 213c827367444ee418f129b2c238299f49d3264554Jarkko Poyry *//*! 223c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * \file 233c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * \brief Vertex attribute fetch. 243c827367444ee418f129b2c238299f49d3264554Jarkko Poyry *//*--------------------------------------------------------------------*/ 253c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 263c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#include "rrDefs.hpp" 273c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#include "rrGenericVector.hpp" 283c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#include "tcuVector.hpp" 293c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 303c827367444ee418f129b2c238299f49d3264554Jarkko Poyrynamespace rr 313c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 323c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 333c827367444ee418f129b2c238299f49d3264554Jarkko Poyryenum VertexAttribType 343c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 353c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // Can only be read as floats 363c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_FLOAT = 0, 373c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_HALF, 383c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_FIXED, 393c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_DOUBLE, 403c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 413c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // Can only be read as floats, will be normalized 423c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UNORM8, 433c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UNORM16, 443c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UNORM32, 453c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV, //!< Packed format, only size = 4 is allowed 463c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 473c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // Clamped formats, GLES3-style conversion: max{c / (2^(b-1) - 1), -1 } 483c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM8_CLAMP, 493c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM16_CLAMP, 503c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM32_CLAMP, 513c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP, //!< Packed format, only size = 4 is allowed 523c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 533c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // Scaled formats, GLES2-style conversion: (2c + 1) / (2^b - 1) 543c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM8_SCALE, 553c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM16_SCALE, 563c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM32_SCALE, 573c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE, //!< Packed format, only size = 4 is allowed 583c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 593c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // can only be read as float, will not be normalized 603c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UINT8, 613c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UINT16, 623c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UINT32, 633c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 643c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_INT8, 653c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_INT16, 663c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_INT32, 673c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 683c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UINT_2_10_10_10_REV, //!< Packed format, only size = 4 is allowed 693c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_INT_2_10_10_10_REV, //!< Packed format, only size = 4 is allowed 703c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 713c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // can only be read as integers 723c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_PURE_UINT8, 733c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_PURE_UINT16, 743c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_PURE_UINT32, 753c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 763c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_PURE_INT8, 773c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_PURE_INT16, 783c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_PURE_INT32, 793c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 803c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // reordered formats of GL_ARB_vertex_array_bgra 813c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UNORM8_BGRA, 823c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV_BGRA, 833c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP_BGRA, 843c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE_BGRA, 853c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 863c827367444ee418f129b2c238299f49d3264554Jarkko Poyry // can be read as anything 873c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_DONT_CARE, //!< Do not enforce type checking when reading GENERIC attribute. Used for current client side attributes. 883c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 893c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VERTEXATTRIBTYPE_LAST 903c827367444ee418f129b2c238299f49d3264554Jarkko Poyry}; 913c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 923c827367444ee418f129b2c238299f49d3264554Jarkko Poyry/*--------------------------------------------------------------------*//*! 933c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * \brief Vertex attribute slot 943c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 953c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Vertex attribute type specifies component type for attribute and it 963c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * includes signed & normalized bits as well. 973c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 983c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Attribute size specifies how many components there are per vertex. 993c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * If size is 0, no components are fetched, ie. vertex attribute slot 1003c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * is disabled. 1013c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 1023c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Divisor specifies the rate at which vertex attribute advances. If it is 1033c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * zero, attribute is advanced per vertex. If divisor is non-zero, attribute 1043c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * advances once per instanceDivisor instances. 1053c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * 1063c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * Pointer is used if not null, otherwise generic attribute is used instead 1073c827367444ee418f129b2c238299f49d3264554Jarkko Poyry * and in such case only DONT_CARE is valid attribute type. 1083c827367444ee418f129b2c238299f49d3264554Jarkko Poyry *//*--------------------------------------------------------------------*/ 1093c827367444ee418f129b2c238299f49d3264554Jarkko Poyrystruct VertexAttrib 1103c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 1113c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VertexAttribType type; //!< Attribute component type. 1123c827367444ee418f129b2c238299f49d3264554Jarkko Poyry int size; //!< Number of components, valid range is [0,4]. 1133c827367444ee418f129b2c238299f49d3264554Jarkko Poyry int stride; //!< Number of bytes two consecutive elements differ by. Zero works as in GL. Valid range is [0, inf). 1143c827367444ee418f129b2c238299f49d3264554Jarkko Poyry int instanceDivisor; //!< Vertex attribute divisor. 1153c827367444ee418f129b2c238299f49d3264554Jarkko Poyry const void* pointer; //!< Data pointer. 1163c827367444ee418f129b2c238299f49d3264554Jarkko Poyry GenericVec4 generic; //!< Generic attribute, used if pointer is null. 1173c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1183c827367444ee418f129b2c238299f49d3264554Jarkko Poyry VertexAttrib (void) 1193c827367444ee418f129b2c238299f49d3264554Jarkko Poyry : type (VERTEXATTRIBTYPE_FLOAT) 1203c827367444ee418f129b2c238299f49d3264554Jarkko Poyry , size (0) 1213c827367444ee418f129b2c238299f49d3264554Jarkko Poyry , stride (0) 1223c827367444ee418f129b2c238299f49d3264554Jarkko Poyry , instanceDivisor (0) 1233c827367444ee418f129b2c238299f49d3264554Jarkko Poyry , pointer (DE_NULL) 1243c827367444ee418f129b2c238299f49d3264554Jarkko Poyry { 1253c827367444ee418f129b2c238299f49d3264554Jarkko Poyry } 1263c827367444ee418f129b2c238299f49d3264554Jarkko Poyry}; 1273c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1283c827367444ee418f129b2c238299f49d3264554Jarkko Poyrybool isValidVertexAttrib (const VertexAttrib& vertexAttrib); 1293c827367444ee418f129b2c238299f49d3264554Jarkko Poyry// \todo [2013-04-01 pyry] Queries: isReadFloatValid(), isReadIntValid() ... 1303c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1313c827367444ee418f129b2c238299f49d3264554Jarkko Poyryvoid readVertexAttrib (tcu::Vec4& dst, const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx); 1323c827367444ee418f129b2c238299f49d3264554Jarkko Poyryvoid readVertexAttrib (tcu::IVec4& dst, const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx); 1333c827367444ee418f129b2c238299f49d3264554Jarkko Poyryvoid readVertexAttrib (tcu::UVec4& dst, const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx); 1343c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1353c827367444ee418f129b2c238299f49d3264554Jarkko Poyry// Helpers that return by value (trivial for compiler to optimize). 1363c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1373c827367444ee418f129b2c238299f49d3264554Jarkko Poyryinline tcu::Vec4 readVertexAttribFloat (const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx) 1383c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 1393c827367444ee418f129b2c238299f49d3264554Jarkko Poyry tcu::Vec4 v; 1403c827367444ee418f129b2c238299f49d3264554Jarkko Poyry readVertexAttrib(v, vertexAttrib, instanceNdx, vertexNdx); 1413c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return v; 1423c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 1433c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1443c827367444ee418f129b2c238299f49d3264554Jarkko Poyryinline tcu::IVec4 readVertexAttribInt (const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx) 1453c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 1463c827367444ee418f129b2c238299f49d3264554Jarkko Poyry tcu::IVec4 v; 1473c827367444ee418f129b2c238299f49d3264554Jarkko Poyry readVertexAttrib(v, vertexAttrib, instanceNdx, vertexNdx); 1483c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return v; 1493c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 1503c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1513c827367444ee418f129b2c238299f49d3264554Jarkko Poyryinline tcu::UVec4 readVertexAttribUint (const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx) 1523c827367444ee418f129b2c238299f49d3264554Jarkko Poyry{ 1533c827367444ee418f129b2c238299f49d3264554Jarkko Poyry tcu::UVec4 v; 1543c827367444ee418f129b2c238299f49d3264554Jarkko Poyry readVertexAttrib(v, vertexAttrib, instanceNdx, vertexNdx); 1553c827367444ee418f129b2c238299f49d3264554Jarkko Poyry return v; 1563c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} 1573c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1583c827367444ee418f129b2c238299f49d3264554Jarkko Poyry} // rr 1593c827367444ee418f129b2c238299f49d3264554Jarkko Poyry 1603c827367444ee418f129b2c238299f49d3264554Jarkko Poyry#endif // _RRVERTEXATTRIB_HPP 161