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Imported Upstream version 0.13.2+dsfg1

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Sebastian Ramacher 2016-02-24 00:16:51 +01:00
commit fb3990e9e5
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libobs-d3d11/d3d11-indexbuffer.cpp Normal file
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/******************************************************************************
Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#include "d3d11-subsystem.hpp"
void gs_index_buffer::InitBuffer()
{
D3D11_BUFFER_DESC bd;
D3D11_SUBRESOURCE_DATA srd;
HRESULT hr;
memset(&bd, 0, sizeof(bd));
memset(&srd, 0, sizeof(srd));
bd.Usage = dynamic ? D3D11_USAGE_DYNAMIC : D3D11_USAGE_DEFAULT;
bd.CPUAccessFlags = dynamic ? D3D11_CPU_ACCESS_WRITE : 0;
bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
bd.ByteWidth = UINT(indexSize * num);
srd.pSysMem = indices.data;
hr = device->device->CreateBuffer(&bd, &srd, indexBuffer.Assign());
if (FAILED(hr))
throw HRError("Failed to create buffer", hr);
}
gs_index_buffer::gs_index_buffer(gs_device_t *device, enum gs_index_type type,
void *indices, size_t num, uint32_t flags)
: device (device),
dynamic ((flags & GS_DYNAMIC) != 0),
type (type),
num (num),
indices (indices)
{
switch (type) {
case GS_UNSIGNED_SHORT: indexSize = 2; break;
case GS_UNSIGNED_LONG: indexSize = 4; break;
}
InitBuffer();
}