94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
//========= Copyright © 1996-2002, Valve LLC, All rights reserved. ============
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================
|
|
|
|
#include "../cl_dll/wrect.h"
|
|
#include "../cl_dll/cl_dll.h"
|
|
#include "vgui.h"
|
|
#include "vgui_loadtga.h"
|
|
#include "vgui_inputstream.h"
|
|
|
|
|
|
// ---------------------------------------------------------------------- //
|
|
// Helper class for loading tga files.
|
|
// ---------------------------------------------------------------------- //
|
|
class MemoryInputStream : public vgui::InputStream
|
|
{
|
|
public:
|
|
MemoryInputStream()
|
|
{
|
|
m_pData = NULL;
|
|
m_DataLen = m_ReadPos = 0;
|
|
}
|
|
|
|
virtual void seekStart(bool& success) {m_ReadPos=0; success=true;}
|
|
virtual void seekRelative(int count,bool& success) {m_ReadPos+=count; success=true;}
|
|
virtual void seekEnd(bool& success) {m_ReadPos=m_DataLen; success=true;}
|
|
virtual int getAvailable(bool& success) {success=false; return 0;} // This is what vgui does for files...
|
|
|
|
virtual uchar readUChar(bool& success)
|
|
{
|
|
if(m_ReadPos>=0 && m_ReadPos<m_DataLen)
|
|
{
|
|
success=true;
|
|
uchar ret = m_pData[m_ReadPos];
|
|
++m_ReadPos;
|
|
return ret;
|
|
}
|
|
else
|
|
{
|
|
success=false;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
virtual void readUChar(uchar* buf,int count,bool& success)
|
|
{
|
|
for(int i=0; i < count; i++)
|
|
buf[i] = readUChar(success);
|
|
}
|
|
|
|
virtual void close(bool& success)
|
|
{
|
|
m_pData = NULL;
|
|
m_DataLen = m_ReadPos = 0;
|
|
}
|
|
|
|
uchar *m_pData;
|
|
int m_DataLen;
|
|
int m_ReadPos;
|
|
};
|
|
|
|
vgui::BitmapTGA* vgui_LoadTGA(char const *pFilename)
|
|
{
|
|
MemoryInputStream stream;
|
|
|
|
stream.m_pData = gEngfuncs.COM_LoadFile((char*)pFilename, 5, &stream.m_DataLen);
|
|
if(!stream.m_pData)
|
|
return NULL;
|
|
|
|
stream.m_ReadPos = 0;
|
|
vgui::BitmapTGA *pRet = new vgui::BitmapTGA(&stream, true);
|
|
gEngfuncs.COM_FreeFile(stream.m_pData);
|
|
|
|
return pRet;
|
|
}
|
|
|
|
vgui::BitmapTGA* vgui_LoadTGANoInvertAlpha(char const *pFilename)
|
|
{
|
|
MemoryInputStream stream;
|
|
|
|
stream.m_pData = gEngfuncs.COM_LoadFile((char*)pFilename, 5, &stream.m_DataLen);
|
|
if(!stream.m_pData)
|
|
return NULL;
|
|
|
|
stream.m_ReadPos = 0;
|
|
vgui::BitmapTGA *pRet = new vgui::BitmapTGA(&stream, false);
|
|
gEngfuncs.COM_FreeFile(stream.m_pData);
|
|
|
|
return pRet;
|
|
}
|