mirror of
https://github.com/chibicitiberiu/rainmeter-studio.git
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92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
/*
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Copyright (C) 2013 Birunthan Mohanathas
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (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, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "WICBitmapLockDIB.h"
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#include <cassert>
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#include "../../Library/Litestep.h"
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namespace Gfx {
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WICBitmapLockDIB::WICBitmapLockDIB(WICBitmapDIB* bitmap, const WICRect* lockRect) :
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m_Bitmap(bitmap),
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m_Rect(lockRect),
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m_RefCount(1)
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{
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}
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WICBitmapLockDIB::~WICBitmapLockDIB()
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{
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}
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IFACEMETHODIMP WICBitmapLockDIB::QueryInterface(REFIID riid, void** ppvObject)
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{
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return E_NOTIMPL;
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}
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IFACEMETHODIMP_(ULONG) WICBitmapLockDIB::AddRef()
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{
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++m_RefCount;
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return m_RefCount;
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}
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IFACEMETHODIMP_(ULONG) WICBitmapLockDIB::Release()
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{
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--m_RefCount;
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if (m_RefCount == 0)
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{
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delete this;
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return 0;
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}
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return m_RefCount;
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}
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IFACEMETHODIMP WICBitmapLockDIB::GetSize(UINT* puiWidth, UINT* puiHeight)
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{
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return m_Bitmap->GetSize(puiWidth, puiHeight);
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}
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IFACEMETHODIMP WICBitmapLockDIB::GetStride(UINT* pcbStride)
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{
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UINT width = 0;
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m_Bitmap->GetSize(&width, nullptr);
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if (pcbStride) *pcbStride = (width * 32 + 31) / 32 * 4;
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return S_OK;
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}
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IFACEMETHODIMP WICBitmapLockDIB::GetDataPointer(UINT* pcbBufferSize, BYTE** ppbData)
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{
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UINT stride = 0;
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GetStride(&stride);
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if (pcbBufferSize) *pcbBufferSize = stride * m_Rect->Height;
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if (ppbData) *ppbData = (BYTE*)&m_Bitmap->m_DIBSectionBufferPixels[m_Rect->Y * m_Rect->Width + m_Rect->X];
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return S_OK;
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}
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IFACEMETHODIMP WICBitmapLockDIB::GetPixelFormat(WICPixelFormatGUID* pPixelFormat)
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{
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return m_Bitmap->GetPixelFormat(pPixelFormat);
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}
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} // namespace Gfx
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