bool GetFormatMSE(const D3DXIMAGE_INFO& info, LPDIRECT3DSURFACE8 pSrcSurf, D3DFORMAT fmt, double& CMSE, double& AMSE)
{
LPDIRECT3DSURFACE8 pCompSurf = 0, pDstSurf = 0;
HRESULT hr;
// Compress
int Width = PadPow2(info.Width), Height = PadPow2(info.Height);
hr = pD3DDevice->CreateImageSurface(Width, Height, fmt, &pCompSurf);
CheckHR(hr);
hr = D3DXLoadSurfaceFromSurface(pCompSurf, NULL, NULL, pSrcSurf, NULL, NULL, D3DX_FILTER_NONE, 0);
CheckHR(hr);
// Decompress
hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_A8R8G8B8, &pDstSurf);
CheckHR(hr);
hr = D3DXLoadSurfaceFromSurface(pDstSurf, NULL, NULL, pCompSurf, NULL, NULL, D3DX_FILTER_NONE, 0);
CheckHR(hr);
pCompSurf->Release(); pCompSurf = 0;
// calculate mean square error
D3DLOCKED_RECT slr, dlr;
hr = pSrcSurf->LockRect(&slr, NULL, D3DLOCK_READONLY);
CheckHR(hr);
hr = pDstSurf->LockRect(&dlr, NULL, D3DLOCK_READONLY);
CheckHR(hr);
double CTSE = 0.0; // total colour square error
double ATSE = 0.0; // total alpha square error
RGBCOLOUR* src = (RGBCOLOUR*)slr.pBits;
RGBCOLOUR* dst = (RGBCOLOUR*)dlr.pBits;
for (UINT y = 0; y < info.Height; ++y)
{
for (UINT x = 0; x < info.Width; ++x)
{
CTSE += (src->b - dst->b) * (src->b - dst->b);
CTSE += (src->g - dst->g) * (src->g - dst->g);
CTSE += (src->r - dst->r) * (src->r - dst->r);
ATSE += (src->a - dst->a) * (src->a - dst->a);
++src; ++dst;
}
src += (slr.Pitch - info.Width*sizeof(RGBCOLOUR)) / sizeof(RGBCOLOUR);
dst += (dlr.Pitch - info.Width*sizeof(RGBCOLOUR)) / sizeof(RGBCOLOUR);
}
CMSE = CTSE / double(info.Width * info.Height * 3);
AMSE = ATSE / double(info.Width * info.Height);
pSrcSurf->UnlockRect();
pDstSurf->UnlockRect();
pDstSurf->Release(); pDstSurf = 0;
return true;
}
int LoadBitmapToSurface(char* PathName, LPDIRECT3DSURFACE8* ppSurface, LPDIRECT3DDEVICE8 pDevice){
HRESULT r;
HBITMAP hBitmap;
BITMAP Bitmap;
hBitmap = (HBITMAP)LoadImage(NULL, PathName, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_CREATEDIBSECTION);
if(hBitmap == NULL){
SetError("Unable to load bitmap");
return E_FAIL;
}
GetObject(hBitmap, sizeof(BITMAP), &Bitmap);
DeleteObject(hBitmap);//we only needed it for the header info to create a D3D surface
//create surface for bitmap
r=pDevice->CreateImageSurface(Bitmap.bmWidth, Bitmap.bmHeight, D3DFMT_X8R8G8B8, ppSurface);
if(FAILED(r)){
SetError("Unable to create surface for bitmap load");
return E_FAIL;
}
//load bitmap onto surface
r = D3DXLoadSurfaceFromFile(*ppSurface, NULL, NULL, PathName, NULL, D3DX_FILTER_NONE, 0, NULL);
if(FAILED(r)){
SetError("Unable to laod file to surface");
return E_FAIL;
}
return S_OK;
}
RageSurface* RageDisplay_D3D::CreateScreenshot()
{
#if defined(XBOX)
return NULL;
#else
/* Get the back buffer. */
IDirect3DSurface8* pSurface;
g_pd3dDevice->GetBackBuffer( 0, D3DBACKBUFFER_TYPE_MONO, &pSurface );
/* Get the back buffer description. */
D3DSURFACE_DESC desc;
pSurface->GetDesc( &desc );
/* Copy the back buffer into a surface of a type we support. */
IDirect3DSurface8* pCopy;
g_pd3dDevice->CreateImageSurface( desc.Width, desc.Height, D3DFMT_A8R8G8B8, &pCopy );
D3DXLoadSurfaceFromSurface( pCopy, NULL, NULL, pSurface, NULL, NULL, D3DX_DEFAULT, 0 );
pSurface->Release();
/* Update desc from the copy. */
pCopy->GetDesc( &desc );
D3DLOCKED_RECT lr;
{
RECT rect;
rect.left = 0;
rect.top = 0;
rect.right = desc.Width;
rect.bottom = desc.Height;
pCopy->LockRect( &lr, &rect, D3DLOCK_READONLY );
}
RageSurface *surface = CreateSurfaceFromPixfmt( FMT_RGBA8, lr.pBits, desc.Width, desc.Height, lr.Pitch);
ASSERT( surface );
/* We need to make a copy, since lr.pBits will go away when we call UnlockRect(). */
RageSurface *SurfaceCopy =
CreateSurface( surface->w, surface->h,
surface->format->BitsPerPixel,
surface->format->Rmask, surface->format->Gmask,
surface->format->Bmask, surface->format->Amask );
RageSurfaceUtils::CopySurface( surface, SurfaceCopy );
delete surface;
pCopy->UnlockRect();
pCopy->Release();
return SurfaceCopy;
#endif
}
RageSurface* RageDisplay_D3D::CreateScreenshot()
{
// Get the back buffer.
IDirect3DSurface8* pSurface;
g_pd3dDevice->GetBackBuffer( 0, D3DBACKBUFFER_TYPE_MONO, &pSurface );
// Get the back buffer description.
D3DSURFACE_DESC desc;
pSurface->GetDesc( &desc );
// Copy the back buffer into a surface of a type we support.
IDirect3DSurface8* pCopy;
g_pd3dDevice->CreateImageSurface( desc.Width, desc.Height, D3DFMT_A8R8G8B8, &pCopy );
// Aldo_MX: D3DXLoadSurfaceFromSurface requires d3dx8core.h, I replaced it with CopyRects to
// remove this dependency so its possible to compile SM with any DirectX SDK up to Aug 2007
D3DXLoadSurfaceFromSurface( pCopy, NULL, NULL, pSurface, NULL, NULL, D3DX_DEFAULT, 0 );
//g_pd3dDevice->CopyRects( pSurface, NULL, 0, pCopy, NULL );
pSurface->Release();
// Update desc from the copy.
pCopy->GetDesc( &desc );
D3DLOCKED_RECT lr;
{
RECT rect;
rect.left = 0;
rect.top = 0;
rect.right = desc.Width;
rect.bottom = desc.Height;
pCopy->LockRect( &lr, &rect, D3DLOCK_READONLY );
}
RageSurface *surface = CreateSurfaceFromPixfmt( PixelFormat_RGBA8, lr.pBits, desc.Width, desc.Height, lr.Pitch);
ASSERT( surface );
// We need to make a copy, since lr.pBits will go away when we call UnlockRect().
RageSurface *SurfaceCopy =
CreateSurface( surface->w, surface->h,
surface->format->BitsPerPixel,
surface->format->Rmask, surface->format->Gmask,
surface->format->Bmask, surface->format->Amask );
RageSurfaceUtils::CopySurface( surface, SurfaceCopy );
delete surface;
pCopy->UnlockRect();
pCopy->Release();
return SurfaceCopy;
}
// only works for gifs or other 256-colour anims
void ConvertAnim(const char* Dir, const char* Filename, double MaxMSE)
{
HRESULT hr;
LPDIRECT3DSURFACE8 pSrcSurf = NULL;
char OutFilename[52];
if (Dir)
_snprintf(OutFilename, 52, "%s\\%s", Dir, Filename);
else
_snprintf(OutFilename, 52, "%s", Filename);
OutFilename[51] = 0;
printf("%s: ", OutFilename);
TRACE1("%s:\n", OutFilename);
int n = strlen(OutFilename);
if (n < 40)
printf("%*c", 40-n, ' ');
// Load up the file
CAnimatedGifSet Anim;
int nImages = Anim.LoadGIF(Filename);
if (!nImages)
{
puts("ERROR: Unable to load gif (file corrupt?)");
return;
}
if (nImages > 65535)
{
printf("ERROR: Too many frames in gif (%d > 65535)\n", nImages);
return;
}
PrintAnimInfo(Anim);
UINT Width = PadPow2(Anim.FrameWidth);
UINT Height = PadPow2(Anim.FrameHeight);
D3DXIMAGE_INFO info;
info.Width = Anim.FrameWidth;
info.Height = Anim.FrameHeight;
info.MipLevels = 1;
info.Depth = 0;
info.ResourceType = D3DRTYPE_SURFACE;
info.Format = D3DFMT_P8;
info.ImageFileFormat = D3DXIFF_PNG;
PALETTEENTRY pal[256];
memcpy(pal, Anim.m_vecimg[0]->Palette, 256 * sizeof(PALETTEENTRY));
for (int i = 0; i < 256; i++)
pal[i].peFlags = 0xff; // alpha
if (Anim.m_vecimg[0]->Transparency && Anim.m_vecimg[0]->Transparent >= 0)
memset(&pal[Anim.m_vecimg[0]->Transparent], 0, sizeof(PALETTEENTRY));
// setup xpr header
WriteXPRHeader((DWORD*)pal, nImages);
if (nImages > 1)
{
XPRFile.AnimInfo->RealSize = (info.Width & 0xffff) | ((info.Height & 0xffff) << 16);
XPRFile.AnimInfo->nLoops = Anim.nLoops;
}
int nActualImages = 0;
TotalSrcPixels += info.Width * info.Height * nImages;
TotalDstPixels += Width * Height * nImages;
float Waste = 100.f * (float)(Width * Height - info.Width * info.Height) / (float)(Width * Height);
// alloc hash buffer
BYTE (*HashBuf)[20] = new BYTE[nImages][20];
for (int i = 0; i < nImages; ++i)
{
if (pSrcSurf)
pSrcSurf->Release();
pSrcSurf = NULL;
printf("%3d%%\b\b\b\b", 100 * i / nImages);
UncompressedSize += Width * Height;
CAnimatedGif* pGif = Anim.m_vecimg[i];
if (nImages > 1)
XPRFile.Texture[i].RealSize = pGif->Delay;
// generate sha1 hash
SHA1((BYTE*)pGif->Raster, pGif->BytesPerRow * pGif->Height, HashBuf[i]);
// duplicate scan
int j;
for (j = 0; j < i; ++j)
{
if (!memcmp(HashBuf[j], HashBuf[i], 20))
{
// duplicate image!
TRACE2(" %03d: Duplicate of %03d\n", i, j);
AppendXPRImageLink(j);
break;
}
}
if (j < i)
continue;
++nActualImages;
// DXT1 for P8s if lossless
hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_A8R8G8B8, &pSrcSurf);
CheckHR(hr);
D3DLOCKED_RECT slr;
hr = pSrcSurf->LockRect(&slr, NULL, D3DLOCK_READONLY);
CheckHR(hr);
BYTE* src = (BYTE*)pGif->Raster;
DWORD* dst = (DWORD*)slr.pBits;
DWORD* dwPal = (DWORD*)pal;
for (int y = 0; y < pGif->Height; ++y)
{
for (UINT x = 0; x < Width; ++x)
*dst++ = dwPal[*src++];
}
memset(dst, 0, (Height - pGif->Height) * slr.Pitch);
pSrcSurf->UnlockRect();
double CMSE, AMSE;
TRACE1(" %03d: Checking DXT1: ", i);
if (!GetFormatMSE(info, pSrcSurf, D3DFMT_DXT1, CMSE, AMSE))
return;
TRACE2("CMSE=%05.2f, AMSE=%07.2f\n", CMSE, AMSE);
if (CMSE <= 1e-6 && AMSE <= 1e-6)
{
TRACE1(" %03d: Selected Format: DXT1\n", i);
AppendXPRImage(info, pSrcSurf, XB_D3DFMT_DXT1);
}
else
{
pSrcSurf->Release();
hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_P8, &pSrcSurf);
CheckHR(hr);
hr = pSrcSurf->LockRect(&slr, NULL, D3DLOCK_READONLY);
CheckHR(hr);
memcpy((BYTE*)slr.pBits, pGif->Raster, pGif->Height * slr.Pitch);
memset((BYTE*)slr.pBits + pGif->Height * slr.Pitch, pGif->Transparent, (Height - pGif->Height) * slr.Pitch);
pSrcSurf->UnlockRect();
TRACE1(" %03d: Selected Format: P8\n", i);
AppendXPRImage(info, pSrcSurf, XB_D3DFMT_P8);
}
}
delete [] HashBuf;
printf("(%5df) %4dx%-4d (%5.2f%% waste)\n", nActualImages, Width, Height, Waste);
CommitXPR(OutFilename);
if (pSrcSurf)
pSrcSurf->Release();
}
void ConvertFile(const char* Dir, const char* Filename, double MaxMSE)
{
HRESULT hr;
LPDIRECT3DSURFACE8 pSrcSurf = NULL;
char OutFilename[52];
if (Dir)
_snprintf(OutFilename, 52, "%s\\%s", Dir, Filename);
else
_snprintf(OutFilename, 52, "%s", Filename);
OutFilename[51] = 0;
printf("%s: ", OutFilename);
TRACE1("%s:\n", OutFilename);
int n = strlen(OutFilename);
if (n < 40)
printf("%*c", 40-n, ' ');
if (pSrcSurf)
pSrcSurf->Release();
pSrcSurf = NULL;
// Load up the file
D3DXIMAGE_INFO info;
hr = D3DXGetImageInfoFromFile(Filename, &info);
CheckHR(hr);
PrintImageInfo(info);
UINT Width = PadPow2(info.Width);
UINT Height = PadPow2(info.Height);
float Waste = 100.f * (float)(Width * Height - info.Width * info.Height) / (float)(Width * Height);
UncompressedSize += Width * Height * 4;
TotalSrcPixels += info.Width * info.Height;
TotalDstPixels += Width * Height;
// Special case for 256-colour files - just directly drop into a P8 xpr
if (info.Format == D3DFMT_P8)
{
hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_A8R8G8B8, &pSrcSurf);
CheckHR(hr);
hr = D3DXLoadSurfaceFromFile(pSrcSurf, NULL, NULL, Filename, NULL, D3DX_FILTER_NONE, 0, NULL);
CheckHR(hr);
FixTransparency(pSrcSurf);
if (Width * Height > 4096)
{
// DXT1 for P8s if lossless and more than 4k image
LPDIRECT3DSURFACE8 pTempSurf;
hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_A8R8G8B8, &pTempSurf);
CheckHR(hr);
hr = D3DXLoadSurfaceFromSurface(pTempSurf, NULL, NULL, pSrcSurf, NULL, NULL, D3DX_FILTER_NONE, 0);
CheckHR(hr);
double CMSE, AMSE;
TRACE0(" Checking DXT1: ");
if (!GetFormatMSE(info, pTempSurf, D3DFMT_DXT1, CMSE, AMSE))
{
pTempSurf->Release();
return;
}
TRACE2("CMSE=%05.2f, AMSE=%07.2f\n", CMSE, AMSE);
if (CMSE <= 1e-6 && AMSE <= 1e-6)
{
printf("DXT1 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: DXT1\n");
WriteXPR(OutFilename, info, pTempSurf, XB_D3DFMT_DXT1, NULL);
pTempSurf->Release();
return;
}
pTempSurf->Release();
}
printf("P8 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: P8\n");
LPDIRECT3DSURFACE8 pTempSurf;
DWORD pal[256];
ConvertP8(pSrcSurf, pTempSurf, pal, info);
WriteXPR(OutFilename, info, pTempSurf, XB_D3DFMT_P8, pal);
pTempSurf->Release();
return;
}
// test linear format versus non-linear format
// Linear format requires 64 pixel aligned width, whereas
// Non-linear format requires power of 2 width and height
bool useLinearFormat(false);
UINT linearWidth = (info.Width + 0x3f) & ~0x3f;
if (AllowLinear && linearWidth * info.Height < Width * Height)
useLinearFormat = true;
hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_A8R8G8B8, &pSrcSurf);
CheckHR(hr);
hr = D3DXLoadSurfaceFromFile(pSrcSurf, NULL, NULL, Filename, NULL, D3DX_FILTER_NONE, 0, NULL);
CheckHR(hr);
// create the linear version as well
LPDIRECT3DSURFACE8 pLinearSrcSurf = NULL;
if (useLinearFormat)
{
hr = pD3DDevice->CreateImageSurface(linearWidth, info.Height, D3DFMT_A8R8G8B8, &pLinearSrcSurf);
CheckHR(hr);
hr = D3DXLoadSurfaceFromFile(pLinearSrcSurf, NULL, NULL, Filename, NULL, D3DX_FILTER_NONE, 0, NULL);
CheckHR(hr);
}
// special case for small files - all textures are alloced on page granularity so just output uncompressed
// dxt is crap on small files anyway
if (Width * Height <= 1024)
{
if (useLinearFormat)
{
// correct sizing amounts
UncompressedSize -= Width * Height * 4;
UncompressedSize += linearWidth * info.Height * 4;
TotalDstPixels -= Width * Height;
TotalDstPixels += linearWidth * info.Height;
Waste = 100.f * (float)(linearWidth * info.Height - info.Width * info.Height) / (float)(linearWidth * info.Height);
printf("LIN_A8R8G8B8 %4dx%-4d (%5.2f%% waste)\n", linearWidth, info.Height, Waste);
TRACE0(" Selected Format: LIN_A8R8G8B8\n");
WriteXPR(OutFilename, info, pLinearSrcSurf, XB_D3DFMT_LIN_A8R8G8B8, NULL);
}
else
{
printf("A8R8G8B8 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: A8R8G8B8\n");
WriteXPR(OutFilename, info, pSrcSurf, XB_D3DFMT_A8R8G8B8, NULL);
}
return;
}
FixTransparency(pSrcSurf);
// Find the best format within specified tolerance
double CMSE, AMSE[2];
// DXT1 is the preferred format as it's smallest
TRACE0(" Checking DXT1: ");
if (!GetFormatMSE(info, pSrcSurf, D3DFMT_DXT1, CMSE, AMSE[0]))
return;
TRACE2("CMSE=%05.2f, AMSE=%07.2f\n", CMSE, AMSE[0]);
if (CMSE <= MaxMSE && AMSE[0] <= MaxMSE)
{
printf("DXT1 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: DXT1\n");
WriteXPR(OutFilename, info, pSrcSurf, XB_D3DFMT_DXT1, NULL);
return;
}
// Use P8 is possible as it's lossless
LPDIRECT3DSURFACE8 pTempSurf;
DWORD pal[256];
if (ConvertP8(pSrcSurf, pTempSurf, pal, info))
{
printf("P8 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: P8\n");
WriteXPR(OutFilename, info, pTempSurf, XB_D3DFMT_P8, pal);
pTempSurf->Release();
return;
}
// DXT3/5 are the same size so use whichever is better if good enough
// CMSE will be equal for both
TRACE0(" Checking DXT3: ");
if (!GetFormatMSE(info, pSrcSurf, D3DFMT_DXT3, CMSE, AMSE[0]))
return;
TRACE2("CMSE=%05.2f, AMSE=%07.2f\n", CMSE, AMSE[0]);
TRACE0(" Checking DXT5: ");
if (!GetFormatMSE(info, pSrcSurf, D3DFMT_DXT5, CMSE, AMSE[1]))
return;
TRACE2("CMSE=%05.2f, AMSE=%07.2f\n", CMSE, AMSE[1]);
if (AMSE[0] <= AMSE[1])
{
if (CMSE <= MaxMSE && AMSE[0] <= MaxMSE)
{
printf("DXT3 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: DXT3\n");
WriteXPR(OutFilename, info, pSrcSurf, XB_D3DFMT_DXT3, NULL);
return;
}
}
else
{
if (CMSE <= MaxMSE && AMSE[1] <= MaxMSE)
{
printf("DXT5 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: DXT5\n");
WriteXPR(OutFilename, info, pSrcSurf, XB_D3DFMT_DXT5, NULL);
return;
}
}
// No good compressed format so use uncompressed
// A1R5G5B5 is worth a try I guess...
TRACE0(" Checking A1R5G5B5: ");
if (!GetFormatMSE(info, pSrcSurf, D3DFMT_A1R5G5B5, CMSE, AMSE[0]))
return;
TRACE2("CMSE=%05.2f, AMSE=%07.2f\n", CMSE, AMSE[0]);
if (CMSE <= MaxMSE && AMSE[0] <= MaxMSE)
{
printf("A1R5G5B5 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: A1R5G5B5\n");
LPDIRECT3DSURFACE8 pTempSurf;
hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_A1R5G5B5, &pTempSurf);
CheckHR(hr);
hr = D3DXLoadSurfaceFromSurface(pTempSurf, NULL, NULL, pSrcSurf, NULL, NULL, D3DX_FILTER_NONE, 0);
CheckHR(hr);
WriteXPR(OutFilename, info, pTempSurf, XB_D3DFMT_A1R5G5B5, NULL);
pTempSurf->Release();
return;
}
// Use A8R8G8B8
if (useLinearFormat)
{
// correct sizing information
UncompressedSize -= Width * Height * 4;
UncompressedSize += linearWidth * info.Height * 4;
TotalDstPixels -= Width * Height;
TotalDstPixels += linearWidth * info.Height;
Waste = 100.f * (float)(linearWidth * info.Height - info.Width * info.Height) / (float)(linearWidth * info.Height);
printf("LIN_A8R8G8B8 %4dx%-4d (%5.2f%% waste)\n", linearWidth, info.Height, Waste);
TRACE0(" Selected Format: LIN_A8R8G8B8\n");
WriteXPR(OutFilename, info, pLinearSrcSurf, XB_D3DFMT_LIN_A8R8G8B8, NULL);
}
else
{
printf("A8R8G8B8 %4dx%-4d (%5.2f%% waste)\n", Width, Height, Waste);
TRACE0(" Selected Format: A8R8G8B8\n");
WriteXPR(OutFilename, info, pSrcSurf, XB_D3DFMT_A8R8G8B8, NULL);
}
if (pSrcSurf)
pSrcSurf->Release();
}
// Converts to P8 format is colours <= 256
bool ConvertP8(LPDIRECT3DSURFACE8 pSrcSurf, LPDIRECT3DSURFACE8& pDstSurf, DWORD* pal, D3DXIMAGE_INFO &info)
{
pDstSurf = 0;
D3DSURFACE_DESC desc;
pSrcSurf->GetDesc(&desc);
// convert to p8
UINT Width = PadPow2(desc.Width);
UINT Height = PadPow2(desc.Height);
HRESULT hr = pD3DDevice->CreateImageSurface(Width, Height, D3DFMT_A8R8G8B8, &pDstSurf);
CheckHR(hr);
D3DLOCKED_RECT slr, dlr;
hr = pDstSurf->LockRect(&dlr, NULL, 0);
CheckHR(hr);
hr = pSrcSurf->LockRect(&slr, NULL, D3DLOCK_READONLY);
CheckHR(hr);
DWORD* src = (DWORD*)slr.pBits;
BYTE* dst = (BYTE*)dlr.pBits;
int n = 0, i;
for (UINT y = 0; y < info.Height; ++y)
{
for (UINT x = 0; x < info.Width; ++x)
{
for (i = 0; i < n; ++i)
{
if (pal[i] == *src)
break;
}
if (i == n)
{
if (n >= 256)
{
TRACE0(" Too many colours for P8\n");
pSrcSurf->UnlockRect();
pDstSurf->UnlockRect();
pDstSurf->Release();
return false;
}
pal[n++] = *src;
}
*dst++ = i;
++src;
}
for (UINT x = info.Width; x < Width; ++x)
{
*dst++ = 0; // we don't care about the colour outside of our real image
++src;
}
}
for (UINT y = info.Height; y < Height; ++y)
{
for (UINT x = 0; x < Width; ++x)
{
*dst++ = 0; // we don't care about the colour outside of our real image
++src;
}
}
TRACE1(" Colours Used: %d\n", n);
pDstSurf->UnlockRect();
pSrcSurf->UnlockRect();
return true;
}