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nHeight = lp_bitmap->m_info_head.biHeight;
src_buf = lp_bitmap->m_mem_buf;
if( FAILED( lp_plain->m_off_screen->Lock( NULL, &ddsd, DDLOCK_WAIT | DDLOCK_SURFACEMEMORYPTR, NULL ) ) )
{
return 2;
}
nPitch = ddsd.lPitch;
dest_buf= (UCHAR*)ddsd.lpSurface;
if( nPitch == nWidth )
{
memcpy( dest_buf, src_buf, lp_bitmap->m_info_head.biSizeImage );
}
else
{
for( y = 0; y < nHeight; y++ )
{
src_pos = y * nWidth;
dest_pos = y * nPitch;
memcpy( dest_buf + dest_pos, src_buf + src_pos, nPitch );
}
}
lp_plain->m_off_screen->Unlock( NULL );
return 0;
}
/*---------------------------------------------------------------------------------
功能：显示一个图像
说明：
返回：成功，0；失败，其它正数值
---------------------------------------------------------------------------------*/
STDMETHODIMP CFreeDirectDraw::ShowUnit(ULONG plain_ptr, int x_pos, int y_pos )
{
OFFSCREEN_PTR lp_screen = (OFFSCREEN_PTR)plain_ptr;
RECT rect,dest_rect;
rect.left = 0 ;
rect.top = 0 ;
rect.right = lp_screen->m_n_width;
rect.bottom = lp_screen->m_n_height;
dest_rect = rect;
dest_rect.left += x_pos;
dest_rect.top += y_pos;
dest_rect.right += x_pos;
dest_rect.bottom += y_pos;
if( FAILED( m_back_surface->Blt( &dest_rect, lp_screen->m_off_screen, &rect, DDBLT_WAIT, NULL ) ) )
{
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------------
功能：创建一个离屏区
说明：
返回：成功，0；失败，其它正数值
---------------------------------------------------------------------------------*/
STDMETHODIMP CFreeDirectDraw::CreateOffScreenPlain(ULONG plain_ptr, int nWidth, int nHeight, ULONG dwFlags)
{
char buf[1024];
sprintf( buf, "width = %d, height = %d", nWidth, nHeight );
m_log.SaveMessage( buf );
OFFSCREEN_PTR lp_screen = (OFFSCREEN_PTR)plain_ptr;
DDSURFACEDESC2 ddsd;
INIT_STRUCT(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | dwFlags;
ddsd.dwWidth = nWidth;
ddsd.dwHeight = nHeight;
if( FAILED( m_dd->CreateSurface(&ddsd, &lp_screen->m_off_screen, NULL ) ) )
{
m_log.SaveMessage("创建离屏区失败！");
return 1;
}
lp_screen->m_n_width = nWidth;
lp_screen->m_n_height = nHeight;
return 0;
}
/*---------------------------------------------------------------------------------
功能：卸载位图
说明：
返回：成功，0；失败，其它正数值
---------------------------------------------------------------------------------*/
STDMETHODIMP CFreeDirectDraw::UnloadBitmapFile(ULONG bitmap_file_ptr)
{
BITMAP_FILE_PTR lp_bitmap = (BITMAP_FILE_PTR)bitmap_file_ptr;
if( lp_bitmap == NULL )
{
return 0;
}
if( lp_bitmap->m_mem_buf == NULL )
{
return 0;
}
delete [] lp_bitmap->m_mem_buf;
lp_bitmap->m_mem_buf = NULL;
return 0;
}
/*---------------------------------------------------------------------------------
功能：清除离屏区
说明：
返回：成功，0；失败，其它正数值
---------------------------------------------------------------------------------*/
STDMETHODIMP CFreeDirectDraw::ReleaseOffScreenPlain(ULONG plain_ptr)
{
OFFSCREEN_PTR lp_plain = (OFFSCREEN_PTR)plain_ptr;
SAFE_RELEASE( lp_plain->m_off_screen );
return 0;
}
/*---------------------------------------------------------------------------------
功能：从配置文件载入位图的配置信息
说明：
返回：成功，0；失败，其它正数值
---------------------------------------------------------------------------------*/
STDMETHODIMP CFreeDirectDraw::LoadFromConfigFile(ULONG config_struct_ptr)
{
CONFIG_PTR lp_config = (CONFIG_PTR)config_struct_ptr;
m_ini.SetIniFileName( lp_config->m_file_name );
m_ini.ReadIniInt( &lp_config->m_n_bit, "DIRECTDRAW", "BITCOUNT" );
m_ini.ReadIniInt( &lp_config->m_n_width, "DIRECTDRAW", "WIDTH" );
m_ini.ReadIniInt( &lp_config->m_n_height, "DIRECTDRAW", "HEIGHT" );
m_ini.ReadIniString( lp_config->m_file_name, 20, "DIRECTDRAW", "FILENAME" );
m_ini.GetFullFileName( lp_config->m_file_name );
m_log.SaveMessage( lp_config->m_file_name );
return 0;
}
///////////////////////////////////////////////////////////////////////////////
[id(1), helpstring("method Init")] HRESULT Init([in]ULONG hWnd,[in]int nWidth,[in]int nHeight,[in]int nBit);
[id(2), helpstring("method UnInit")] HRESULT UnInit();
[id(3), helpstring("method SetClipper")] HRESULT SetClipper(/*[in]*/int nNum,/*[in]*/ULONG lp_rect);
[id(4), helpstring("method UpdatePalette")] HRESULT UpdatePalette([in]ULONG lp_palette_entry);
[id(5), helpstring("method DrawRandPixel_08")] HRESULT DrawRandPixel_08([in]int nCount);
[id(6), helpstring("method Flip")] HRESULT Flip();
[id(7), helpstring("method Start_Clock")] HRESULT Start_Clock();
[id(8), helpstring("method Wait_Clock")] HRESULT Wait_Clock([in]double count);
[id(9), helpstring("method LoadBitmapFile")] HRESULT LoadBitmapFile([in]ULONG bitmap_file_ptr,[in]ULONG bitmap_file_name);
[id(10), helpstring("method CopyBitmapToPlain08")] HRESULT CopyBitmapToPlain08([in]ULONG bitmap_file_ptr,[in]ULONG plain_ptr);
[id(11), helpstring("method ShowUnit")] HRESULT ShowUnit(/*[in]*/ULONG plain_ptr,/*[in]*/int x_pos,/*[in]*/int y_pos);
[id(12), helpstring("method CreateOffScreenPlain")] HRESULT CreateOffScreenPlain([in]ULONG plain_ptr,[in]int nWidth,[in]int nHeight,[in]ULONG dwFlags);
[id(13), helpstring("method UnloadBitmapFile")] HRESULT UnloadBitmapFile([in]ULONG bitmap_file_ptr);
[id(14), helpstring("method ReleaseOffScreenPlain")] HRESULT ReleaseOffScreenPlain([in]ULONG plain_ptr);
[id(15), helpstring("method LoadFromConfigFile")] HRESULT LoadFromConfigFile([in]ULONG config_struct_ptr);
///////////////////////////////////////////////////////////////////////////////////////////////
/*---------------------------------------------------------------------------------
功能：创建调色板
说明：
返回：成功，0；失败，其它正数值
---------------------------------------------------------------------------------*/
int CFreeDirectDraw::CreatePalatte()
{
memset( &m_palatte_entry, 0, sizeof( PALETTEENTRY ) * MAX_PALETTE_COLORS );
for( int i = 1; i < MAX_PALETTE_COLORS; i++ )
{
if( i < 64 )
{
m_palatte_entry[i].peRed = i * 4;
}
else if( i >= 64 && i < 128 )
{
m_palatte_entry[i].peGreen = ( i - 64 ) * 4;
}
else if( i >= 128 && i > 192 )
{
m_palatte_entry[i].peBlue = ( i - 128 ) * 4;
}
else
{
m_palatte_entry[i].peRed =
m_palatte_entry[i].peRed =
m_palatte_entry[i].peRed = ( i - 192 ) * 4;
}
m_palatte_entry[i].peFlags = PC_NOCOLLAPSE;
}
m_palatte_entry[0].peRed = 0;
m_palatte_entry[0].peGreen = 0;
m_palatte_entry[0].peBlue = 0;
m_palatte_entry[0].peFlags = PC_NOCOLLAPSE;
m_palatte_entry[255].peRed = 255;
m_palatte_entry[255].peGreen= 255;
m_palatte_entry[255].peBlue = 255;
m_palatte_entry[255].peFlags= PC_NOCOLLAPSE;
HRESULT hr;
hr = m_dd->CreatePalette(DDPCAPS_8BIT | DDPCAPS_INITIALIZE | DDPCAPS_ALLOW256,m_palatte_entry,&m_palette,NULL);
if( hr != DD_OK )
{
return 1;
}
hr = m_prim_surface->SetPalette( m_palette );
if( hr != DD_OK )
{
return 2;
}
return 0;
}
/*---------------------------------------------------------------------------------
功能：剪切页面
说明：
返回：成功，0；失败，其它正数值
---------------------------------------------------------------------------------*/
int CFreeDirectDraw::SetClipper(LPDIRECTDRAWSURFACE7 lpdds, int nNum, LPRECT clip_list )
{
LPDIRECTDRAWCLIPPER lp_clip = NULL;
int nIndex;
LPRGNDATA region;
if( FAILED(m_dd->CreateClipper(0, &lp_clip, NULL)) )
{
return 1;
}
region = new RGNDATA[ sizeof(RGNDATAHEADER) + nNum * sizeof( RECT ) ];
memcpy(region->Buffer,clip_list,sizeof(RECT)*nNum);
region->rdh.dwSize = sizeof( RGNDATAHEADER );
region->rdh.iType = RDH_RECTANGLES;
region->rdh.nCount = nNum;
region->rdh.nRgnSize = nNum * sizeof( RECT );
region->rdh.rcBound.left = 6400;
region->rdh.rcBound.top = 6400;
region->rdh.rcBound.right = -6400;
region->rdh.rcBound.bottom = -6400;
for( nIndex = 0; nIndex < nNum; nIndex++ )
{
if( region->rdh.rcBound.left > clip_list[nIndex].left )
{
region->rdh.rcBound.left = clip_list[nIndex].left;
}
if( region->rdh.rcBound.top > clip_list[nIndex].top )
{
region->rdh.rcBound.top = clip_list[nIndex].top;
}
if( region->rdh.rcBound.right < clip_list[nIndex].right )
{
region->rdh.rcBound.right = clip_list[nIndex].right;
}
if( region->rdh.rcBound.bottom < clip_list[nIndex].bottom )
{
region->rdh.rcBound.bottom = clip_list[nIndex].bottom;
}
}
if( FAILED( lp_clip->SetClipList( region, 0 ) ) )
{
delete [] region ;
return 2;
}
if( FAILED( lpdds->SetClipper( lp_clip ) ))
{
delete [] region ;
return 3;
}
delete [] region ;
m_clipper = lp_clip;
return 0;
}
/*---------------------------------------------------------------------------------
功能：更新调色板内容
说明：
返回：成功，0；失败，其它数值
---------------------------------------------------------------------------------*/
int CFreeDirectDraw::UpdatePalette(PALETTEENTRY* lp_palette_entry)
{
memcpy( m_palatte_entry, lp_palette_entry, sizeof( PALETTEENTRY ) * MAX_PALETTE_COLORS );
if ( FAILED( m_palette->SetEntries( 0, 0, MAX_PALETTE_COLORS, m_palatte_entry ) ) )
{
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------------
功能：翻转位图
说明：
返回：成功，0；失败，其它数值
---------------------------------------------------------------------------------*/
int CFreeDirectDraw::Flip_Bitmap( BITMAP_FILE_PTR lp_bitmap )
{
if( lp_bitmap == NULL )
{
return 1;
}
if( lp_bitmap->m_mem_buf == NULL )
{
return 2;
}
//如果位图高度是负数，就不用反转了
if( lp_bitmap->m_info_head.biHeight < 0 )
{
return 0;
}
//////////////////////////////////////////////////////////////////
int nPitch;
int nWidth,nHeight,nHalfHeight;
int y,src_pos,dest_pos;
UCHAR* temp_buf,*buf;
nWidth = lp_bitmap->m_info_head.biWidth;
nHeight = lp_bitmap->m_info_head.biHeight;
nHalfHeight = nHeight / 2;
nPitch = nWidth * lp_bitmap->m_info_head.biBitCount / 8;
buf = lp_bitmap->m_mem_buf;
temp_buf = new UCHAR[nPitch];
//反转图像
for( y = 0; y < nHalfHeight; y++ )
{
src_pos = nPitch * y;
dest_pos= nPitch * ( nHeight - 1 - y );
memcpy( temp_buf, buf + src_pos, nPitch );
memcpy( buf + src_pos, buf + dest_pos, nPitch );
memcpy( buf + dest_pos, temp_buf, nPitch );
}
delete [] temp_buf;
temp_buf = NULL;
return 0;
}
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