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