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/**************************************************************************
*
* Copyright 2015 VMware, Inc.
* 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, sub license,
* 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* AUTHORS,
* AND/OR THEIR SUPPLIERS 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.
*
**************************************************************************/
/*
* Auxiliary functions to compute the size of array/blob arguments.
*/
#pragma once
static inline size_t
_getVertexSize(DWORD dwFVF) {
size_t size = 0;
assert((dwFVF & D3DFVF_RESERVED0) == 0);
switch (dwFVF & D3DFVF_POSITION_MASK) {
case D3DFVF_XYZ:
size += 3 * sizeof(FLOAT);
break;
case D3DFVF_XYZRHW:
size += 4 * sizeof(FLOAT);
break;
case D3DFVF_XYZB1:
size += (3 + 1) * sizeof(FLOAT);
break;
case D3DFVF_XYZB2:
size += (3 + 2) * sizeof(FLOAT);
break;
case D3DFVF_XYZB3:
size += (3 + 3) * sizeof(FLOAT);
break;
case D3DFVF_XYZB4:
size += (3 + 4) * sizeof(FLOAT);
break;
case D3DFVF_XYZB5:
size += (3 + 5) * sizeof(FLOAT);
break;
#if DIRECT3D_VERSION >= 0x0900
case D3DFVF_XYZW:
size += 4 * sizeof(FLOAT);
break;
#endif
}
if (dwFVF & D3DFVF_NORMAL) {
size += 3 * sizeof(FLOAT);
}
#if DIRECT3D_VERSION >= 0x0800
if (dwFVF & D3DFVF_PSIZE) {
size += sizeof(FLOAT);
}
#else
if (dwFVF & D3DFVF_RESERVED1) {
// D3DLVERTEX
size += sizeof(DWORD);
}
#endif
if (dwFVF & D3DFVF_DIFFUSE) {
size += sizeof(D3DCOLOR);
}
if (dwFVF & D3DFVF_SPECULAR) {
size += sizeof(D3DCOLOR);
}
DWORD dwNumTextures = (dwFVF & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT;
for (DWORD CoordIndex = 0; CoordIndex < dwNumTextures; ++CoordIndex) {
// See D3DFVF_TEXCOORDSIZE*
DWORD dwTexCoordSize = (dwFVF >> (CoordIndex*2 + 16)) & 3;
switch (dwTexCoordSize) {
case D3DFVF_TEXTUREFORMAT2:
size += 2 * sizeof(FLOAT);
break;
case D3DFVF_TEXTUREFORMAT1:
size += 1 * sizeof(FLOAT);
break;
case D3DFVF_TEXTUREFORMAT3:
size += 3 * sizeof(FLOAT);
break;
case D3DFVF_TEXTUREFORMAT4:
size += 4 * sizeof(FLOAT);
break;
}
}
assert((dwFVF & D3DFVF_RESERVED2) == 0);
return size;
}
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