////////////////////////////////////////////////////////////////
//
// CPixelsManager::GetVolumePixels
//
// Here we have a surface which:
// 1 - is D3DFMT_R5G6B5 or D3DFMT_X8R8G8B8/D3DFMT_A8R8G8B8
// 2 - can be locked
//
// Returns PLAIN pixels
//
////////////////////////////////////////////////////////////////
bool CPixelsManager::GetVolumePixels ( IDirect3DVolume9* pD3DSurface, CPixels& outPixels, const RECT* pRect, uint uiSlice )
{
if ( !pD3DSurface )
return false;
// Calc surface rect
D3DVOLUME_DESC SurfDesc;
pD3DSurface->GetDesc ( &SurfDesc );
POINT SurfSize = { SurfDesc.Width, SurfDesc.Height };
RECT SurfRect = { 0, 0, SurfDesc.Width, SurfDesc.Height };
if ( pRect )
SurfRect = *pRect;
// Calc pixels rect
uint uiPixelsWidth = GetRectWidth ( SurfRect );
uint uiPixelsHeight = GetRectHeight ( SurfRect );
POINT PixelsSize = { uiPixelsWidth, uiPixelsHeight };
RECT PixelsRect = { 0, 0, uiPixelsWidth, uiPixelsHeight };
// Validate rects
if ( !ClipRects ( PixelsSize, PixelsRect, SurfSize, SurfRect ) )
return false;
// Check if pRect can be NULL
pRect = &SurfRect;
if ( SurfRect.left == 0 && SurfRect.top == 0 && SurfRect.right == SurfDesc.Width && SurfRect.bottom == SurfDesc.Height )
pRect = NULL;
// Get pixels from pD3DSurface
D3DLOCKED_RECT LockedRect;
if ( FAILED ( LockVolumeRect ( pD3DSurface, &LockedRect, pRect, D3DLOCK_READONLY | D3DLOCK_NOSYSLOCK, uiSlice ) ) )
return false;
// Get sizes
uint SurfRectWidth = GetRectWidth ( SurfRect );
uint SurfRectHeight = GetRectHeight ( SurfRect );
uint PixelsRectWidth = GetRectWidth ( PixelsRect );
uint PixelsRectHeight = GetRectHeight ( PixelsRect );
uint CopyWidth = Min ( SurfRectWidth, PixelsRectWidth );
uint CopyHeight = Min ( SurfRectHeight, PixelsRectHeight );
// Prepare pixels
uint ulPixelsPitch = uiPixelsWidth * XRGB_BYTES_PER_PIXEL;
outPixels.SetSize ( ulPixelsPitch * uiPixelsHeight + SIZEOF_PLAIN_TAIL );
memset ( outPixels.GetData (), 0x81, outPixels.GetSize () );
char* pPixelsData = outPixels.GetData ();
pPixelsData += PixelsRect.left * XRGB_BYTES_PER_PIXEL;
pPixelsData += PixelsRect.top * ulPixelsPitch;
uint ulSurfPitch = LockedRect.Pitch;
BYTE* pSurfBits = (BYTE*)LockedRect.pBits;
if ( CRenderItemManager::GetBitsPerPixel ( SurfDesc.Format ) == 32 )
{
if ( SurfDesc.Format == D3DFMT_A8R8G8B8 )
{
uint uiCopyWidthBytes = CopyWidth * XRGB_BYTES_PER_PIXEL;
// Copy lines into buffer
for ( uint i = 0; i < CopyHeight; i++ )
{
memcpy ( pPixelsData + ulPixelsPitch * i, pSurfBits + i * ulSurfPitch, uiCopyWidthBytes );
}
}
else
{
// Copy lines into buffer
for ( uint i = 0; i < CopyHeight; i++ )
{
DWORD* pLinePixelsStart = (DWORD*)( pPixelsData + ulPixelsPitch * i );
const DWORD* pLineSurfStart = (DWORD*)( pSurfBits + ulSurfPitch * i );
for ( uint x = 0; x < CopyWidth; x++ )
{
DWORD x8r8g8b8 = pLineSurfStart[x];
x8r8g8b8 |= 0xff000000;
pLinePixelsStart[x] = x8r8g8b8;
}
}
}
}
else
if ( CRenderItemManager::GetBitsPerPixel ( SurfDesc.Format ) == 16 )
{
// Copy lines into buffer
for ( uint i = 0; i < CopyHeight; i++ )
{
DWORD* pLinePixelsStart = (DWORD*)( pPixelsData + ulPixelsPitch * i );
const WORD* pLineSurfStart = (WORD*)( pSurfBits + ulSurfPitch * i );
for ( uint x = 0; x < CopyWidth; x++ )
{
WORD r5g6b5 = pLineSurfStart[x];
BYTE r = ( r5g6b5 & 0xF800 ) >> 11 << 3;
BYTE g = ( r5g6b5 & 0x7E0 ) >> 5 << 2;
BYTE b = ( r5g6b5 & 0x1F ) << 3;
DWORD x8r8g8b8 = (r << 16) | (g << 8) | b;
x8r8g8b8 |= 0xFF070307;
pLinePixelsStart[x] = x8r8g8b8;
}
}
}
pD3DSurface->UnlockBox ();
// Fixup plain format attributes
return SetPlainDimensions ( outPixels, uiPixelsWidth, uiPixelsHeight );
}
////////////////////////////////////////////////////////////////
//
// CPixelsManager::GetTexturePixels
//
// Copy pixels from texture
//
////////////////////////////////////////////////////////////////
bool CPixelsManager::GetTexturePixels ( IDirect3DBaseTexture9* pD3DBaseTexture, CPixels& outPixels, const RECT* pRect, uint uiSurfaceIndex )
{
if ( !pD3DBaseTexture )
return false;
IDirect3DSurface9* pD3DSurface = NULL;
CAutoReleaseMe < IDirect3DSurface9 > Thanks( pD3DSurface );
D3DRESOURCETYPE resourceType = pD3DBaseTexture->GetType ();
if ( resourceType == D3DRTYPE_VOLUMETEXTURE )
{
return GetVolumeTexturePixels ( (IDirect3DVolumeTexture9*)pD3DBaseTexture, outPixels, pRect, uiSurfaceIndex );
}
else
if ( resourceType == D3DRTYPE_CUBETEXTURE )
{
D3DCUBEMAP_FACES FaceType = (D3DCUBEMAP_FACES)uiSurfaceIndex;
((IDirect3DCubeTexture9*)pD3DBaseTexture)->GetCubeMapSurface ( FaceType, 0, &pD3DSurface );
if ( !pD3DSurface )
return false;
}
else
if ( resourceType == D3DRTYPE_TEXTURE )
{
((IDirect3DTexture9*)pD3DBaseTexture)->GetSurfaceLevel ( 0, &pD3DSurface );
if ( !pD3DSurface )
return false;
}
bool bResult = false;
D3DSURFACE_DESC Desc;
pD3DSurface->GetDesc ( &Desc );
if ( Desc.Usage == D3DUSAGE_RENDERTARGET )
{
// Check we are allowed to read the render target
bool bAllowScreenUpload = true;
CVARS_GET ( "allow_screen_upload", bAllowScreenUpload );
if ( bAllowScreenUpload )
{
// Get pixels onto offscreen surface
IDirect3DSurface9* pLockableSurface = GetRTLockableSurface ( pD3DSurface );
// Then
bResult = GetSurfacePixels ( pLockableSurface, outPixels, pRect );
}
else
{
// If not allowed, return dummy data
uint uiPixelsWidth = 32;
uint uiPixelsHeight = 32;
outPixels.SetSize ( uiPixelsWidth * uiPixelsHeight * XRGB_BYTES_PER_PIXEL + SIZEOF_PLAIN_TAIL );
memset ( outPixels.GetData (), 0xEF, outPixels.GetSize () );
bResult = SetPlainDimensions ( outPixels, uiPixelsWidth, uiPixelsHeight );
}
}
else
if ( Desc.Usage == 0 )
{
if ( Desc.Format == D3DFMT_A8R8G8B8 || Desc.Format == D3DFMT_X8R8G8B8 || Desc.Format == D3DFMT_R5G6B5 )
{
// Direct reading will work here
bResult = GetSurfacePixels ( pD3DSurface, outPixels, pRect );
}
else
{
// If not a simple format, use D3DX to convert
if ( !GetMatchingOffscreenSurface ( pD3DSurface, m_pTempOffscreenSurface, D3DFMT_A8R8G8B8 ) )
return false;
if ( FAILED ( D3DXLoadSurfaceFromSurface ( m_pTempOffscreenSurface, NULL, NULL, pD3DSurface, NULL, NULL, D3DX_FILTER_NONE, 0 ) ) )
return false;
// Then
bResult = GetSurfacePixels ( m_pTempOffscreenSurface, outPixels, pRect );
}
}
return bResult;
}
