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#include "stdafx.h"
extern HINSTANCE hinstance;
void HalfBitmap32Alpha(HBITMAP hBitmap)
{
BITMAP bmp;
DWORD dwLen;
BYTE *p;
int x, y;
GetObject(hBitmap, sizeof(bmp), &bmp);
if (bmp.bmBitsPixel != 32)
return;
dwLen = bmp.bmWidth * bmp.bmHeight * (bmp.bmBitsPixel / 8);
p = (BYTE *)malloc(dwLen);
if (p == nullptr)
return;
memset(p, 0, dwLen);
GetBitmapBits(hBitmap, dwLen, p);
for (y = 0; y < bmp.bmHeight; ++y) {
BYTE *px = p + bmp.bmWidth * 4 * y;
for (x = 0; x < bmp.bmWidth; ++x)
{
px[3] >>= 1;
px += 4;
}
}
SetBitmapBits(hBitmap, dwLen, p);
free(p);
}
// Make a bitmap all transparent, but only if it is a 32bpp
//void MakeBmpTransparent(HBITMAP hBitmap)
//{
// BITMAP bmp;
// DWORD dwLen;
// BYTE *p;
//
// GetObject(hBitmap, sizeof(bmp), &bmp);
//
// if (bmp.bmBitsPixel != 32)
// return;
//
// dwLen = bmp.bmWidth * bmp.bmHeight * (bmp.bmBitsPixel / 8);
// p = (BYTE *)malloc(dwLen);
// if (p == NULL)
// return;
//
// memset(p, 0, dwLen);
// SetBitmapBits(hBitmap, dwLen, p);
//
// free(p);
//}
// Correct alpha from bitmaps loaded without it (it cames with 0 and should be 255)
void CorrectBitmap32Alpha(HBITMAP hBitmap, BOOL force)
{
BITMAP bmp;
DWORD dwLen;
BYTE *p;
int x, y;
BOOL fixIt;
GetObject(hBitmap, sizeof(bmp), &bmp);
if (bmp.bmBitsPixel != 32)
return;
dwLen = bmp.bmWidth * bmp.bmHeight * (bmp.bmBitsPixel / 8);
p = (BYTE *)malloc(dwLen);
if (p == nullptr)
return;
memset(p, 0, dwLen);
GetBitmapBits(hBitmap, dwLen, p);
fixIt = TRUE;
for (y = 0; fixIt && y < bmp.bmHeight; ++y) {
BYTE *px = p + bmp.bmWidth * 4 * y;
for (x = 0; fixIt && x < bmp.bmWidth; ++x)
{
if (px[3] != 0 && !force)
{
fixIt = FALSE;
}
else
{
if (px[0] != 0 || px[1] != 0 || px[2] != 0)
px[3] = 255;
}
px += 4;
}
}
if (fixIt)
SetBitmapBits(hBitmap, dwLen, p);
free(p);
}
HBITMAP CopyBitmapTo32(HBITMAP hBitmap)
{
BYTE * ptPixels;
BITMAP bmp;
DWORD dwLen;
BYTE *p;
GetObject(hBitmap, sizeof(bmp), &bmp);
dwLen = bmp.bmWidth * bmp.bmHeight * 4;
p = (BYTE *)malloc(dwLen);
if (p == nullptr)
return nullptr;
// Create bitmap
BITMAPINFO RGB32BitsBITMAPINFO;
memset(&RGB32BitsBITMAPINFO, 0, sizeof(BITMAPINFO));
RGB32BitsBITMAPINFO.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
RGB32BitsBITMAPINFO.bmiHeader.biWidth = bmp.bmWidth;
RGB32BitsBITMAPINFO.bmiHeader.biHeight = bmp.bmHeight;
RGB32BitsBITMAPINFO.bmiHeader.biPlanes = 1;
RGB32BitsBITMAPINFO.bmiHeader.biBitCount = 32;
HBITMAP hDirectBitmap = CreateDIBSection(nullptr,
(BITMAPINFO *)&RGB32BitsBITMAPINFO,
DIB_RGB_COLORS,
(void **)&ptPixels,
nullptr, 0);
// Copy data
if (bmp.bmBitsPixel != 32)
{
HDC hdcOrig, hdcDest;
HBITMAP oldOrig, oldDest;
hdcOrig = CreateCompatibleDC(nullptr);
oldOrig = (HBITMAP)SelectObject(hdcOrig, hBitmap);
hdcDest = CreateCompatibleDC(nullptr);
oldDest = (HBITMAP)SelectObject(hdcDest, hDirectBitmap);
BitBlt(hdcDest, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcOrig, 0, 0, SRCCOPY);
SelectObject(hdcDest, oldDest);
DeleteObject(hdcDest);
SelectObject(hdcOrig, oldOrig);
DeleteObject(hdcOrig);
// Set alpha
CorrectBitmap32Alpha(hDirectBitmap, FALSE);
}
else
{
GetBitmapBits(hBitmap, dwLen, p);
SetBitmapBits(hDirectBitmap, dwLen, p);
}
free(p);
return hDirectBitmap;
}
//HBITMAP CreateBitmap32(int cx, int cy)
//{
// BITMAPINFO RGB32BitsBITMAPINFO;
// UINT * ptPixels;
// HBITMAP DirectBitmap;
//
// memset(&RGB32BitsBITMAPINFO, 0, sizeof(BITMAPINFO));
// RGB32BitsBITMAPINFO.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
// RGB32BitsBITMAPINFO.bmiHeader.biWidth=cx;//bm.bmWidth;
// RGB32BitsBITMAPINFO.bmiHeader.biHeight=cy;//bm.bmHeight;
// RGB32BitsBITMAPINFO.bmiHeader.biPlanes=1;
// RGB32BitsBITMAPINFO.bmiHeader.biBitCount=32;
//
// DirectBitmap = CreateDIBSection(NULL,
// (BITMAPINFO *)&RGB32BitsBITMAPINFO,
// DIB_RGB_COLORS,
// (void **)&ptPixels,
// NULL, 0);
// return DirectBitmap;
//}
BOOL MakeBitmap32(HBITMAP *hBitmap)
{
BITMAP bmp;
GetObject(*hBitmap, sizeof(bmp), &bmp);
if (bmp.bmBitsPixel != 32) {
// Convert to 32 bpp
HBITMAP hBmpTmp = CopyBitmapTo32(*hBitmap);
DeleteObject(*hBitmap);
*hBitmap = hBmpTmp;
}
return TRUE;
}
//#define GET_PIXEL(__P__, __X__, __Y__) ( __P__ + width * 4 * (__Y__) + 4 * (__X__))
//BOOL MakeGrayscale(HBITMAP *hBitmap)
//{
// BYTE *p = NULL;
// BYTE *p1;
// DWORD dwLen;
// int width, height, x, y;
// BITMAP bmp;
//
// GetObject(*hBitmap, sizeof(bmp), &bmp);
// width = bmp.bmWidth;
// height = bmp.bmHeight;
//
// dwLen = width * height * 4;
// p = (BYTE *)malloc(dwLen);
// if (p == NULL)
// {
// return FALSE;
// }
//
// if (bmp.bmBitsPixel != 32)
// {
// // Convert to 32 bpp
// HBITMAP hBmpTmp = CopyBitmapTo32(*hBitmap);
// DeleteObject(*hBitmap);
// *hBitmap = hBmpTmp;
// }
// GetBitmapBits(*hBitmap, dwLen, p);
//
// // Make grayscale
// for (y = 0 ; y < height ; y++)
// {
// for (x = 0 ; x < width ; x++)
// {
// p1 = GET_PIXEL(p, x, y);
// p1[0] = p1[1] = p1[2] = ( p1[0] + p1[1] + p1[2] ) / 3;
// }
// }
//
// dwLen = SetBitmapBits(*hBitmap, dwLen, p);
// free(p);
//
// return TRUE;
//}
HICON MakeHalfAlphaIcon(HICON SourceIcon)
{
ICONINFO TargetIconInfo;
BITMAP TargetBitmapInfo;
HICON TargetIcon, TempIcon;
TempIcon = CopyIcon(SourceIcon);
if (!GetIconInfo(TempIcon, &TargetIconInfo))
return nullptr;
if (!GetObject(TargetIconInfo.hbmColor, sizeof(BITMAP), &TargetBitmapInfo))
return nullptr;
MakeBitmap32(&TargetIconInfo.hbmColor);
HalfBitmap32Alpha(TargetIconInfo.hbmColor);
TargetIcon = CreateIconIndirect(&TargetIconInfo);
DestroyIcon(TempIcon);
DeleteObject(TargetIconInfo.hbmColor);
DeleteObject(TargetIconInfo.hbmMask);
return TargetIcon;
}
//HICON MakeGrayscaleIcon(HICON SourceIcon)
//{
// ICONINFO TargetIconInfo;
// BITMAP TargetBitmapInfo;
// HICON TargetIcon, TempIcon;
//
// TempIcon = CopyIcon(SourceIcon);
// if (! GetIconInfo(TempIcon, &TargetIconInfo) || GetObject(TargetIconInfo.hbmColor, sizeof(BITMAP), &TargetBitmapInfo)==0) return NULL;
//
// MakeGrayscale(&TargetIconInfo.hbmColor);
//
// TargetIcon = CreateIconIndirect(&TargetIconInfo);
// DestroyIcon(TempIcon);
//
// return TargetIcon;
//}
HICON BindOverlayIcon(HICON SourceIcon, LPCSTR OverlayIconName)
{
ICONINFO OverlayIconInfo, TargetIconInfo;
BITMAP OverlayBitmapInfo, TargetBitmapInfo;
HBITMAP OldOverlayBitmap, OldTargetBitmap;
HICON OverlayIcon, TargetIcon, TempIcon;
HDC OverlayDC, TargetDC;
BLENDFUNCTION bf = { 0, 0, 255, 1 };
TempIcon = CopyIcon(SourceIcon);
if (!GetIconInfo(TempIcon, &TargetIconInfo))
return nullptr;
MakeBitmap32(&TargetIconInfo.hbmColor);
CorrectBitmap32Alpha(TargetIconInfo.hbmColor, FALSE);
GetObject(TargetIconInfo.hbmColor, sizeof(BITMAP), &TargetBitmapInfo);
OverlayIcon = IcoLib_GetIcon(OverlayIconName);
if (!GetIconInfo(OverlayIcon, &OverlayIconInfo) || !GetObject(OverlayIconInfo.hbmColor, sizeof(BITMAP), &OverlayBitmapInfo))
return nullptr;
TargetDC = CreateCompatibleDC(nullptr);
OldTargetBitmap = (HBITMAP)SelectObject(TargetDC, TargetIconInfo.hbmColor);
OverlayDC = CreateCompatibleDC(nullptr);
OldOverlayBitmap = (HBITMAP)SelectObject(OverlayDC, OverlayIconInfo.hbmColor);
AlphaBlend(TargetDC, 0, 0, TargetBitmapInfo.bmWidth, TargetBitmapInfo.bmHeight,
OverlayDC, 0, 0, OverlayBitmapInfo.bmWidth, OverlayBitmapInfo.bmHeight, bf);
SelectObject(TargetDC, TargetIconInfo.hbmMask);
SelectObject(OverlayDC, OverlayIconInfo.hbmMask);
BitBlt(TargetDC, 0, 0, TargetBitmapInfo.bmWidth, TargetBitmapInfo.bmHeight,
OverlayDC, 0, 0, SRCCOPY);
TargetIcon = CreateIconIndirect(&TargetIconInfo);
DestroyIcon(TempIcon);
//DestroyIcon(OverlayIcon);
SelectObject(TargetDC, OldTargetBitmap);
DeleteObject(TargetIconInfo.hbmColor);
DeleteObject(TargetIconInfo.hbmMask);
DeleteDC(TargetDC);
SelectObject(OverlayDC, OldOverlayBitmap);
DeleteObject(OverlayIconInfo.hbmColor);
DeleteObject(OverlayIconInfo.hbmMask);
DeleteDC(OverlayDC);
return TargetIcon;
}
// EOF
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