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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
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 3 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/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#include "hsConfig.h"
#if HS_BUILD_FOR_WIN32
#define WIN32_EXTRA_LEAN
#define WIN32_LEAN_AND_MEAN
#ifndef _WINDOWS_H_ // redundant include guard to minimize compile times
#define _WINDOWS_H_
#include <windows.h>
#endif // _WINDOWS_H_
#include "vfw.h"
#endif // HS_BUILD_FOR_WIN32
#include "hsTypes.h"
#include "plLayerAVI.h"
#include "plGImage/plMipmap.h"
#if HS_BUILD_FOR_WIN32
class plAVIFileInfo
{
public:
plAVIFileInfo() : fAVIStream(nil), fGetFrame(0) {}
IAVIStream* fAVIStream;
AVISTREAMINFO fAVIStreamInfo;
PGETFRAME fGetFrame; // Where in the stream to get the next frame
};
#else // HS_BUILD_FOR_WIN32
struct plAVIFileInfo
{
};
#endif // HS_BUILD_FOR_WIN32
static hsBool ICopySourceToTexture24(BITMAPINFO* bmi, plMipmap* t);
static hsBool ICopySourceToTexture16(BITMAPINFO* bmi, plMipmap* t);
plLayerAVI::plLayerAVI()
{
fAVIInfo = TRACKED_NEW plAVIFileInfo;
}
plLayerAVI::~plLayerAVI()
{
ICloseMovie();
delete fAVIInfo;
}
hsBool plLayerAVI::IInit()
{
#if HS_BUILD_FOR_WIN32
int ret = AVIStreamOpenFromFile( &fAVIInfo->fAVIStream,
fMovieName,
streamtypeVIDEO,
0,
OF_READ,
NULL);
if (ret)
return ISetFault("Error opening AVI");
if( !(fAVIInfo->fGetFrame = AVIStreamGetFrameOpen(fAVIInfo->fAVIStream, NULL)) )
return ISetFault("Error positioning AVI");
if( AVIStreamInfo(fAVIInfo->fAVIStream, &fAVIInfo->fAVIStreamInfo, sizeof(AVISTREAMINFO)) )
return ISetFault("Error getting AVI info");
BITMAPINFO* bmi;
if( !(bmi = (BITMAPINFO*)AVIStreamGetFrame(fAVIInfo->fGetFrame, fCurrentFrame >= 0 ? fCurrentFrame : 0)) )
return ISetFault("Can't get first frame");
ISetSize(bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight);
Int32 endFrame = fAVIInfo->fAVIStreamInfo.dwLength-1;
hsScalar length = float(endFrame) * float(fAVIInfo->fAVIStreamInfo.dwScale)
/ float(fAVIInfo->fAVIStreamInfo.dwRate);
ISetLength(length);
#endif
return false;
}
Int32 plLayerAVI::ISecsToFrame(hsScalar secs)
{
float timeScale = float(fAVIInfo->fAVIStreamInfo.dwRate) / float(fAVIInfo->fAVIStreamInfo.dwScale);
return Int32(secs * timeScale + 0.5f);
}
hsBool plLayerAVI::IGetCurrentFrame()
{
if( !fAVIInfo->fAVIStream )
IInit();
ICheckBitmap();
BITMAPINFO* bmi;
if( !(bmi = (BITMAPINFO*)AVIStreamGetFrame(fAVIInfo->fGetFrame, fCurrentFrame)) )
return ISetFault("Can't get frame");
switch(bmi->bmiHeader.biBitCount)
{
case 16:
return ICopySourceToTexture16(bmi, plMipmap::ConvertNoRef(GetTexture()));
break;
case 24:
return ICopySourceToTexture24(bmi, plMipmap::ConvertNoRef(GetTexture()));
break;
default:
return ISetFault("Unknown AVI color depth");
}
return true;
}
static hsBool ICopySourceToTexture16(BITMAPINFO* bmi, plMipmap* b)
{
hsAssert( b != nil, "nil mipmap passed to ICopySourceToTexture16()" );
UInt16* pSrc = (UInt16*)( bmi->bmiHeader.biSize + (BYTE*)bmi );
UInt32* pix = (UInt32*)b->GetImage();
pix += b->GetWidth() * b->GetHeight();
int width = bmi->bmiHeader.biWidth;
int height = bmi->bmiHeader.biHeight;
int useHeight = hsMinimum(height, b->GetHeight());
int useWidth = hsMinimum(width, b->GetWidth());
int i;
for( i = 0; i < useHeight; i++ )
{
UInt16* src = pSrc;
pSrc += width;
pix -= b->GetWidth();
UInt32* tPix = pix;
int j;
for( j = 0; j < useWidth; j++ )
{
*tPix = ((*src & 0x001f) << 3) // up 3
| ((*src & 0x03e0) << 6) // down 5 up 3 up 8
| ((*src & 0x7c00) << 9) // down 10 up 3 up 16
| (0xff << 24); // alpha
src++;
++tPix;
}
}
return false;
}
static hsBool ICopySourceToTexture24(BITMAPINFO* bmi, plMipmap* b)
{
hsAssert( b != nil, "nil mipmap passed to ICopySourceToTexture24()" );
unsigned char* pSrc = (unsigned char*)( bmi->bmiHeader.biSize + (BYTE*)bmi );
hsRGBAColor32* pix = (hsRGBAColor32*)b->GetImage();
pix += b->GetWidth() * b->GetHeight();
int width = bmi->bmiHeader.biWidth;
int height = bmi->bmiHeader.biHeight;
int useHeight = hsMinimum(height, b->GetHeight());
int useWidth = hsMinimum(width, b->GetWidth());
int i;
for( i = 0; i < useHeight; i++ )
{
unsigned char* src = pSrc;
pSrc += width * 3;
pix -= b->GetWidth();
hsRGBAColor32* tPix = pix;
int j;
for( j = 0; j < useWidth; j++ )
{
tPix->b = *src++;
tPix->g = *src++;
tPix->r = *src++;
++tPix;
}
}
return false;
}
hsBool plLayerAVI::ICloseMovie()
{
if( fAVIInfo->fGetFrame )
AVIStreamGetFrameClose(fAVIInfo->fGetFrame);
fAVIInfo->fGetFrame = 0;
if( fAVIInfo->fAVIStream )
AVIStreamRelease(fAVIInfo->fAVIStream);
fAVIInfo->fAVIStream = nil;
return false;
}
hsBool plLayerAVI::IRelease()
{
ICloseMovie();
return false;
}