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/****************************************************************************
* Copyright (C) 2014-2015 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* @file tessellator.h
*
* @brief Tessellator fixed function unit interface definition
*
******************************************************************************/
#pragma once
/// Allocate and initialize a new tessellation context
HANDLE SWR_API TSInitCtx(
SWR_TS_DOMAIN tsDomain, ///< [IN] Tessellation domain (isoline, quad, triangle)
SWR_TS_PARTITIONING tsPartitioning, ///< [IN] Tessellation partitioning algorithm
SWR_TS_OUTPUT_TOPOLOGY tsOutputTopology, ///< [IN] Tessellation output topology
void* pContextMem, ///< [IN] Memory to use for the context
size_t& memSize); ///< [INOUT] In: Amount of memory in pContextMem. Out: Mem required
/// Destroy & de-allocate tessellation context
void SWR_API TSDestroyCtx(
HANDLE tsCtx); ///< [IN] Tessellation context to be destroyed
struct SWR_TS_TESSELLATED_DATA
{
uint32_t NumPrimitives;
uint32_t NumDomainPoints;
uint32_t* ppIndices[3];
float* pDomainPointsU;
float* pDomainPointsV;
// For Tri: pDomainPointsW[i] = 1.0f - pDomainPointsU[i] - pDomainPointsV[i]
};
/// Perform Tessellation
void SWR_API TSTessellate(
HANDLE tsCtx, ///< [IN] Tessellation Context
const SWR_TESSELLATION_FACTORS& tsTessFactors, ///< [IN] Tessellation Factors
SWR_TS_TESSELLATED_DATA& tsTessellatedData); ///< [OUT] Tessellated Data
/// @TODO - Implement OSS tessellator
INLINE HANDLE SWR_API TSInitCtx(
SWR_TS_DOMAIN tsDomain,
SWR_TS_PARTITIONING tsPartitioning,
SWR_TS_OUTPUT_TOPOLOGY tsOutputTopology,
void* pContextMem,
size_t& memSize)
{
SWR_ASSERT(0, "%s: Not Implemented", __FUNCTION__);
return NULL;
}
INLINE void SWR_API TSDestroyCtx(HANDLE tsCtx)
{
SWR_ASSERT(0, "%s: Not Implemented", __FUNCTION__);
}
INLINE void SWR_API TSTessellate(
HANDLE tsCtx,
const SWR_TESSELLATION_FACTORS& tsTessFactors,
SWR_TS_TESSELLATED_DATA& tsTessellatedData)
{
SWR_ASSERT(0, "%s: Not Implemented", __FUNCTION__);
}
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