I hope this helped you or anyone...any questions, comments or disagreements e-mail I love getting new ideas and fixing bad ones
dieraxx@stega.smoky.org
P.S. If anyone out there can help me out with Transitional Screen effects in 24bit e-mail me please...
Many guys think they gotta use their own formats, it's no problem, too. You could, for example change the header of a BMP and that's it. No one else could read it without some problems.
But that's not really important, even Kingpin uses TGA's as textures (so I can use fine textures in my engine 
).
CU
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Skullpture Entertainment
#40842461
code:bool LoadBitmapOntoSurface (IDirectDrawSurface* surf, const char* sFile){HBITMAP hbm = LoadBitmapFromFile(sFile);if (!hbm) return false;BITMAP bm;GetObject(hbm, sizeof BITMAP, &bm);// create DC for bitmapHDC hdcBitmap = CreateCompatibleDC(NULL);if (!hdcBitmap) return false;HGDIOBJ hbmOld = SelectObject(hdcBitmap, hbm);// blit bitmap image to surfaceHDC hdc;if (FAILED(surf->GetDC(&hdc))){ SelectObject(hdcBitmap, hbmOld); DeleteDC(hdcBitmap); DeleteObject(hbm); return false;}StretchBlt(hdc, 0, 0, m_obj.nWidth, m_obj.nHeight, hdcBitmap, 0, 0, bm.bmWidth, bm.bmHeight, SRCCOPY);surf->ReleaseDC(hdc);// cleanupSelectObject(hdcBitmap, hbmOld);DeleteDC(hdcBitmap);DeleteObject(hbm);return true;}
Could someone explain how to load an image, and what formats to use?
thanks.
I found out that BMP is the easiest to use.
It's something like.....you can use a DirectDrawSurface, or something else (note that I've used DirectDrawSurfaces)
Note pdata is the start of the image.
code://Copy 888 .BMP image to 1555 DirectDraw texture surface in video //memory, converting as we go. BMP data is stored bottom to top //(i.e., from left to right along a row, but the rows are//stored bottom to top in memory). For applications that support //multiple texture formats, this code fragment can be broken //out into a separate function, and then copied and modified //for each supported texture format. unsigned char r,g,b;unsigned char *oldpdata;unsigned short color1555;unsigned short *texSurfBase;int x, y;int skip; //actual vs. asked for surface width int imageWidthInBytes; oldpdata = pdata;texSurfBase = (unsigned short *)ddsd.lpSurface;imageWidthInBytes = BMPh->biWidth*IMAGEDEPTH_IN_BYTES;skip = ddsd.lPitch - BMPh->biWidth*COLORDEPTH_IN_BYTES; //start at beginning of last row of imagepdata += BMPh->biHeight*imageWidthInBytes - imageWidthInBytes; for (y=0; ybiHeight; y++){ for (x=0; xbiWidth; x++) { b = *pdata++; g = *pdata++; r = *pdata++; color1555 = (unsigned short)( ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) ); *texSurfBase++ = color1555; } //go to next row of texture surface texSurfBase += skip; //go to start of previous row (i.e., go back //two rows worth of bytes, the one just completed, //and the one we want to get to the start of... pdata -= imageWidthInBytes*2; } pdata = oldpdata; //reset pdata's original address
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Dance with me......
