Initial community commit
This commit is contained in:
Jef
434
Src/auth/Loginbox/graphics.cpp
Normal file
434
Src/auth/Loginbox/graphics.cpp
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#include "./graphics.h"
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#include "./shlwapi.h"
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BOOL Image_ColorOverEx(BYTE *pPixels, INT bitmapCX, INT bitmapCY, LONG x, LONG y, LONG cx, LONG cy, WORD bpp, BOOL premult, COLORREF rgb)
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{
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LONG pitch;
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UINT a, r, g, b, ma, mr, mg, mb;
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INT step = (bpp>>3);
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LPBYTE line, cursor;
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pitch = bitmapCX * step;
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while (pitch%4) pitch++;
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if (step < 3)
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return TRUE;
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if (cy < 0) cy -= cy;
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a = (LOBYTE((rgb)>>24)); r = GetRValue(rgb); g = GetGValue(rgb); b = GetBValue(rgb);
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ma = 255 - a; mr = r * 255; mg = g * 255; mb = b * 255;
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if (0 == a)
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return TRUE;
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INT ofs = (bitmapCY > 0) ? (bitmapCY - (y + cy)) : y;
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line = pPixels + pitch * ofs + x*step;
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if (0xFF == a)
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{
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for (; cy-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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cursor[0] = (BYTE)b;
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cursor[1] = (BYTE)g;
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cursor[2] = (BYTE)r;
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// cursor[3] = 0xFF;
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}
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}
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return TRUE;
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}
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if (premult)
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{
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for (; cy-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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UINT t = (mb + ma * cursor[0] + 127) / 255;
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cursor[0] = (t > 0xFF) ? 0xFF : t;
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t = (mg + ma * cursor[1] + 127) / 255;
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cursor[1] = (t > 0xFF) ? 0xFF : t;
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t = (mr+ ma * cursor[2] + 127) / 255;
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cursor[2] = (t > 0xFF) ? 0xFF : t;
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}
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}
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}
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else
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{
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WORD k = (((255 - a)*255 + 127)/255);
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for (; cy-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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cursor[0] = (b*a + k*cursor[0] + 127)/255;
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cursor[1] = (g*a + k*cursor[1] + 127)/255;
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cursor[2] = (r*a + k*cursor[2] + 127)/255;
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// cursor[3] = (a*a + k*cursor[3] + 127)/255;
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}
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}
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}
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return TRUE;
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}
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BOOL Image_ColorizeEx(BYTE *pPixels, INT bitmapCX, INT bitmapCY, LONG x, LONG y, LONG cx, LONG cy, WORD bpp, BOOL premult, COLORREF rgbBottom, COLORREF rgbTop)
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{
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LONG pitch;
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UINT rBottom, gBottom, bBottom;
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UINT rTop, gTop, bTop;
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INT step = (bpp>>3);
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LPBYTE startLine, line, cursor;
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pitch = bitmapCX * step;
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while (pitch%4) pitch++;
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if (cy < 0)
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cy = -cy;
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rBottom = GetRValue(rgbBottom);
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gBottom = GetGValue(rgbBottom);
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bBottom = GetBValue(rgbBottom);
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rTop = GetRValue(rgbTop);
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gTop = GetGValue(rgbTop);
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bTop = GetBValue(rgbTop);
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UINT a, k;
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INT ofs = (bitmapCY > 0) ? (bitmapCY - (y + cy)) : y;
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startLine = pPixels + pitch * ofs + x*step;
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line = startLine;
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for (y = cy; y-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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a = (255- cursor[2]);
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if (a < 0) a = 0;
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if (a > 254)
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{
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cursor[0] = bTop;
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cursor[1] = gTop;
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cursor[2] = rTop;
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}
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else if (a== 0)
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{
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cursor[0] = bBottom;
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cursor[1] = gBottom;
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cursor[2] = rBottom;
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}
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else
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{
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k = (((255 - a)*255 + 127)/255);
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cursor[0] = (bTop * a + k*bBottom + 127)/255;
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cursor[1] = (gTop * a + k*gBottom + 127)/255;
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cursor[2] = (rTop * a + k*rBottom + 127)/255;
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}
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}
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}
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if (32 == bpp && FALSE != premult)
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{
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line = startLine;
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for (y = cy; y-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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a = cursor[3];
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k = MulDiv(cursor[0], a, 255);
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cursor[0] = (k < 255) ? k : 255;
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k = MulDiv(cursor[1], a, 255);
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cursor[1] = (k < 255) ? k : 255;
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k = MulDiv(cursor[2], a, 255);
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cursor[2] = (k < 255) ? k : 255;
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}
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}
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}
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return TRUE;
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}
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BOOL Image_PremultiplyEx(BYTE *pPixels, INT bitmapCX, INT bitmapCY, LONG x, LONG y, LONG cx, LONG cy, WORD bpp)
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{
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if (32 != bpp)
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return FALSE;
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LONG pitch;
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INT step = (bpp>>3);
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LPBYTE line, cursor;
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pitch = bitmapCX * step;
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while (pitch%4) pitch++;
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if (cy < 0)
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cy = -cy;
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INT ofs = (bitmapCY > 0) ? (bitmapCY - (y + cy)) : y;
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line = pPixels + pitch * ofs + x*step;
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UINT a,k;
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for (; cy-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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a = cursor[3];
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if (0 == a)
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{
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cursor[0] = 0;
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cursor[1] = 0;
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cursor[2] = 0;
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}
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else if (255 != a)
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{
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k = MulDiv((UINT)cursor[0], a, 255);
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cursor[0] = (k < 255) ? k : 255;
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k = MulDiv((UINT)cursor[1], a, 255);
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cursor[1] = (k < 255) ? k : 255;
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k = MulDiv((UINT)cursor[2], a, 255);
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cursor[2] = (k < 255) ? k : 255;
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}
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}
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}
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return TRUE;
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}
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BOOL Image_SaturateEx(BYTE *pPixels, INT bitmapCX, INT bitmapCY, LONG x, LONG y, LONG cx, LONG cy, WORD bpp, INT n, BOOL fScale)
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{
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if (32 != bpp)
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return FALSE;
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LONG pitch;
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INT step = (bpp>>3);
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LPBYTE line, cursor;
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pitch = bitmapCX * step;
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while (pitch%4) pitch++;
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if (FALSE == fScale)
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{
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if (n < 0) n = 0;
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else if (n > 1000) n = 1000;
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}
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else
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{
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if (n < -1000) n = -1000;
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else if (n > 1000) n = 1000;
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}
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if (cy < 0)
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cy = -cy;
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INT ofs = (bitmapCY > 0) ? (bitmapCY - (y + cy)) : y;
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line = pPixels + pitch * ofs + x*step;
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COLORREF rgb;
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INT k;
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WORD h, l, s;
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for (; cy-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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rgb = RGB(cursor[2], cursor[1], cursor[0]);
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ColorRGBToHLS(rgb, &h, &l, &s);
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if(FALSE == fScale)
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s = ((WORD)((240 * n)/1000));
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else
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{
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k = s;
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s = (WORD)(k + (k * n) /1000);
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}
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rgb = ColorHLSToRGB(h, l, s);
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cursor[0] = GetBValue(rgb);
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cursor[1] = GetGValue(rgb);
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cursor[2] = GetRValue(rgb);
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}
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}
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return TRUE;
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}
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BOOL Image_AdjustAlphaEx(BYTE *pPixels, INT bitmapCX, INT bitmapCY, LONG x, LONG y, LONG cx, LONG cy, WORD bpp, INT n, BOOL fScale)
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{
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if (32 != bpp)
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return FALSE;
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LONG pitch;
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INT step = (bpp>>3);
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LPBYTE line, cursor;
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pitch = bitmapCX * step;
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while (pitch%4) pitch++;
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if (FALSE == fScale)
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{
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if (n < 0) n = 0;
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else if (n > 1000) n = 1000;
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}
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else
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{
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if (n < -1000) n = -1000;
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else if (n > 1000) n = 1000;
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}
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if (cy < 0)
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cy = -cy;
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INT ofs = (bitmapCY > 0) ? (bitmapCY - (y + cy)) : y;
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line = pPixels + pitch * ofs + x*step;
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INT k;
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for (; cy-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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if(FALSE == fScale)
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cursor[3] = ((BYTE)((255 * n)/1000));
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else
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{
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k = cursor[3];
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k = k + MulDiv(k, n, 1000);
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if (k > 255) k = 255;
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cursor[3] = (BYTE)k;
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}
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}
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}
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return TRUE;
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}
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BOOL Image_AdjustSaturationAlphaEx(BYTE *pPixels, INT bitmapCX, INT bitmapCY, LONG x, LONG y, LONG cx, LONG cy, WORD bpp, INT nSaturation, INT nAlpha)
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{
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if (32 != bpp)
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return FALSE;
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LONG pitch;
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INT step = (bpp>>3);
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LPBYTE line, cursor;
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pitch = bitmapCX * step;
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while (pitch%4) pitch++;
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if (nSaturation < -1000) nSaturation = -1000;
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else if (nSaturation > 1000) nSaturation = 1000;
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if (nAlpha < -1000) nAlpha = -1000;
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else if (nAlpha > 1000) nAlpha = 1000;
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if (cy < 0)
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cy = -cy;
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INT ofs = (bitmapCY > 0) ? (bitmapCY - (y + cy)) : y;
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line = pPixels + pitch * ofs + x*step;
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INT k;
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COLORREF rgb;
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WORD h, l, s;
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for (; cy-- != 0; line += pitch)
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{
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for (x = cx, cursor = line; x-- != 0; cursor += step)
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{
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k = cursor[3];
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k = k + MulDiv(k, nAlpha, 1000);
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if (k > 255) k = 255;
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cursor[3] = (BYTE)k;
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rgb = RGB(cursor[2], cursor[1], cursor[0]);
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ColorRGBToHLS(rgb, &h, &l, &s);
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k = s;
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k = k + MulDiv(k, nSaturation, 1000);
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if (k > 240) k = 240;
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s = (WORD)k;
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rgb = ColorHLSToRGB(h, l, s);
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cursor[0] = GetBValue(rgb);
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cursor[1] = GetGValue(rgb);
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cursor[2] = GetRValue(rgb);
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}
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}
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return TRUE;
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}
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BOOL Image_ColorOver(HBITMAP hbmp, RECT *prcPart, BOOL premult, COLORREF rgb)
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{
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DIBSECTION dibsec;
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if (!hbmp || sizeof(DIBSECTION) != GetObject(hbmp, sizeof(DIBSECTION), &dibsec) ||
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BI_RGB != dibsec.dsBmih.biCompression || 1 != dibsec.dsBmih.biPlanes || dibsec.dsBm.bmBitsPixel != 32)
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return FALSE;
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return Image_ColorOverEx((BYTE*)dibsec.dsBm.bmBits, dibsec.dsBm.bmWidth, dibsec.dsBm.bmHeight,
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prcPart->left, prcPart->top,
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prcPart->right - prcPart->left, prcPart->bottom - prcPart->top,
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dibsec.dsBm.bmBitsPixel, premult, rgb);
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}
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BOOL Image_Premultiply(HBITMAP hbmp, RECT *prcPart)
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{
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DIBSECTION dibsec;
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if (!hbmp || sizeof(DIBSECTION) != GetObject(hbmp, sizeof(DIBSECTION), &dibsec) ||
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BI_RGB != dibsec.dsBmih.biCompression || 1 != dibsec.dsBmih.biPlanes || dibsec.dsBm.bmBitsPixel != 32)
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return FALSE;
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return Image_PremultiplyEx((BYTE*)dibsec.dsBm.bmBits, dibsec.dsBm.bmWidth, dibsec.dsBm.bmHeight,
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prcPart->left, prcPart->top,
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prcPart->right - prcPart->left, prcPart->bottom - prcPart->top,
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dibsec.dsBm.bmBitsPixel);
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}
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BOOL Image_Saturate(HBITMAP hbmp, RECT *prcPart, INT n, BOOL fScale)
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{
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DIBSECTION dibsec;
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if (!hbmp || sizeof(DIBSECTION) != GetObject(hbmp, sizeof(DIBSECTION), &dibsec) ||
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BI_RGB != dibsec.dsBmih.biCompression || 1 != dibsec.dsBmih.biPlanes || dibsec.dsBm.bmBitsPixel != 32)
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return FALSE;
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return Image_SaturateEx((BYTE*)dibsec.dsBm.bmBits, dibsec.dsBm.bmWidth, dibsec.dsBm.bmHeight,
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prcPart->left, prcPart->top,
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prcPart->right - prcPart->left, prcPart->bottom - prcPart->top,
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dibsec.dsBm.bmBitsPixel, n, fScale);
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}
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BOOL Image_AdjustAlpha(HBITMAP hbmp, RECT *prcPart, INT n, BOOL fScale)
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{
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DIBSECTION dibsec;
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if (!hbmp || sizeof(DIBSECTION) != GetObject(hbmp, sizeof(DIBSECTION), &dibsec) ||
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BI_RGB != dibsec.dsBmih.biCompression || 1 != dibsec.dsBmih.biPlanes || dibsec.dsBm.bmBitsPixel != 32)
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return FALSE;
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return Image_AdjustAlphaEx((BYTE*)dibsec.dsBm.bmBits, dibsec.dsBm.bmWidth, dibsec.dsBm.bmHeight,
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prcPart->left, prcPart->top,
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prcPart->right - prcPart->left, prcPart->bottom - prcPart->top,
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dibsec.dsBm.bmBitsPixel, n, fScale);
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}
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BOOL Image_AdjustSaturationAlpha(HBITMAP hbmp, RECT *prcPart, INT nSaturation, INT nAlpha)
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{
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DIBSECTION dibsec;
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if (!hbmp || sizeof(DIBSECTION) != GetObject(hbmp, sizeof(DIBSECTION), &dibsec) ||
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BI_RGB != dibsec.dsBmih.biCompression || 1 != dibsec.dsBmih.biPlanes || dibsec.dsBm.bmBitsPixel != 32)
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return FALSE;
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return Image_AdjustSaturationAlphaEx((BYTE*)dibsec.dsBm.bmBits, dibsec.dsBm.bmWidth, dibsec.dsBm.bmHeight,
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prcPart->left, prcPart->top,
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prcPart->right - prcPart->left, prcPart->bottom - prcPart->top,
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dibsec.dsBm.bmBitsPixel, nSaturation, nAlpha);
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}
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COLORREF Color_Blend(COLORREF rgbTop, COLORREF rgbBottom, INT alpha)
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{
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if (alpha > 254) return rgbTop;
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if (alpha < 0) return rgbBottom;
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WORD k = (((255 - alpha)*255 + 127)/255);
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return RGB( (GetRValue(rgbTop)*alpha + k*GetRValue(rgbBottom) + 127)/255,
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(GetGValue(rgbTop)*alpha + k*GetGValue(rgbBottom) + 127)/255,
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(GetBValue(rgbTop)*alpha + k*GetBValue(rgbBottom) + 127)/255);
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}
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