obs-studio/libobs-d3d11/d3d11-indexbuffer.cpp
jp9000 c9df41c1e2 (API Change) Remove pointers from all typedefs
Typedef pointers are unsafe.  If you do:
typedef struct bla *bla_t;
then you cannot use it as a constant, such as: const bla_t, because
that constant will be to the pointer itself rather than to the
underlying data.  I admit this was a fundamental mistake that must
be corrected.

All typedefs that were pointer types will now have their pointers
removed from the type itself, and the pointers will be used when they
are actually used as variables/parameters/returns instead.

This does not break ABI though, which is pretty nice.
2014-09-25 21:48:11 -07:00

55 lines
1.8 KiB
C++

/******************************************************************************
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),
type (type),
indices (indices),
num (num),
dynamic ((flags & GS_DYNAMIC) != 0)
{
switch (type) {
case GS_UNSIGNED_SHORT: indexSize = 2; break;
case GS_UNSIGNED_LONG: indexSize = 4; break;
}
InitBuffer();
}