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#include ".graphics.h"
#include "ml.h"
#include <math.h>
HBITMAP CreateBitmapMask(HBITMAP originalBmp, int cx, int cy)
{
return CreateBitmapMask(originalBmp, NULL, cx, cy);
}
HBITMAP CreateBitmapMask(HBITMAP originalBmp, COLORREF transColor)
{
return CreateBitmapMask(originalBmp, transColor, 0, 0);
}
HBITMAP CreateBitmapMask(HBITMAP originalBmp, COLORREF transColor, int cx, int cy)
{
HDC hdcMem, hdcMem2;
HBITMAP hbmMask;
BITMAP bm;
GetObjectW(originalBmp, sizeof(BITMAP), &bm);
hbmMask = CreateBitmap(bm.bmWidth, bm.bmHeight, 1, 1, NULL);
hdcMem = CreateCompatibleDC(0);
hdcMem2 = CreateCompatibleDC(0);
HBITMAP obmp = (HBITMAP)SelectObject(hdcMem, originalBmp);
HBITMAP omsk = (HBITMAP)SelectObject(hdcMem2, hbmMask);
if (transColor == NULL) transColor = GetPixel(hdcMem, cx, cy);
COLORREF oldColorBK = SetBkColor(hdcMem, transColor);
BitBlt(hdcMem2, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY);
BitBlt(hdcMem, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem2, 0, 0, SRCINVERT);
SetBkColor(hdcMem, oldColorBK);
SelectObject(hdcMem, obmp);
SelectObject(hdcMem2, omsk);
DeleteDC(hdcMem);
DeleteDC(hdcMem2);
return hbmMask;
}
HBITMAP ConvertTo24bpp(HBITMAP bmp, int bpp)
{
HDC hdcMem, hdcMem2;
HBITMAP hbm24;
BITMAP bm;
GetObjectW(bmp, sizeof(BITMAP), &bm);
hdcMem = CreateCompatibleDC(0);
hdcMem2 = CreateCompatibleDC(0);
void *bits;
BITMAPINFOHEADER bi;
ZeroMemory (&bi, sizeof (bi));
bi.biSize = sizeof (bi);
bi.biWidth= bm.bmWidth;
bi.biHeight = -bm.bmHeight;
bi.biPlanes = 1;
bi.biBitCount= (WORD)(0xFF & bpp);
hbm24 = CreateDIBSection(hdcMem2, (BITMAPINFO *)&bi, DIB_RGB_COLORS, &bits, NULL, NULL);
HBITMAP oBmp = (HBITMAP)SelectObject(hdcMem, bmp);
HBITMAP oBmp24 = (HBITMAP)SelectObject(hdcMem2, hbm24);
BitBlt(hdcMem2, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY);
SelectObject(hdcMem, oBmp);
SelectObject(hdcMem2, oBmp24);
DeleteDC(hdcMem);
DeleteDC(hdcMem2);
return hbm24;
}
// works only with DIB
HBITMAP PatchBitmapColors24(HBITMAP bitmap, COLORREF color1, COLORREF color2, BMPFILTERPROC filterProc)
{
BITMAP bm;
COLOR24 clrBG, clrFG;
INT x, y;
if (!filterProc) return NULL;
if (!GetObjectW(bitmap, sizeof(BITMAP), &bm) || !bm.bmBits || 24 != bm.bmBitsPixel) return NULL;
clrBG.rgbRed = (BYTE)(0xFF & color1);
clrFG.rgbRed = (BYTE)(0xFF & color2);
clrBG.rgbGreen = (BYTE)(0xFF & (color1>>8));
clrFG.rgbGreen = (BYTE)(0xFF & (color2>>8));
clrBG.rgbBlue = (BYTE)(0xFF & (color1>>16));
clrFG.rgbBlue = (BYTE)(0xFF & (color2>>16));
for (y = 0; y < bm.bmHeight; y++)
{
LONG width = (bm.bmWidthBytes%4)?bm.bmWidth*4:bm.bmWidthBytes;
// bm.bmWidthBytes can lie so is safer to go with bm.bmWidth if the dword alignment cbeck fails
// http://blogs.msdn.com/oldnewthing/archive/2004/10/26/247918.aspx#248529
COLOR24 *cursor = (COLOR24*)(((BYTE*)bm.bmBits) + (width*y));
for (x = 0; x < bm.bmWidth; x++, cursor++) filterProc(&clrBG, &clrFG, cursor);
}
return bitmap;
}
void Filter1(const COLOR24 *color1, const COLOR24 *color2, COLOR24 *pixel)
{
pixel->rgbBlue = (BYTE)(color1->rgbBlue - (int)((1.f - (pixel->rgbBlue /255.f))* (color1->rgbBlue - color2->rgbBlue)));
pixel->rgbGreen = (BYTE)(color1->rgbGreen - (int)((1.f - (pixel->rgbGreen /255.f))* (color1->rgbGreen - color2->rgbGreen)));
pixel->rgbRed = (BYTE)(color1->rgbRed - (int)((1.f - (pixel->rgbRed /255.f))* (color1->rgbRed - color2->rgbRed)));
}
void Filter2(const COLOR24 *color1, const COLOR24 *color2, COLOR24 *pixel)
{
float chrom = (float)pixel->rgbBlue / 255.f;
pixel->rgbBlue = (BYTE)(color1->rgbBlue * (1.f - chrom) + color2->rgbBlue * chrom);
pixel->rgbGreen = (BYTE)(color1->rgbGreen * (1.f - chrom) + color2->rgbGreen * chrom);
pixel->rgbRed = (BYTE)(color1->rgbRed * (1.f - chrom) + color2->rgbRed * chrom);
}
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