X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0d0512bd8f4bdf548e0385b21f54f14b68b4b174..a111f2b216a90bacb254644d3cae526eddc9f9f1:/src/msw/dib.cpp diff --git a/src/msw/dib.cpp b/src/msw/dib.cpp index 2bc530afeb..f5b86d7c2b 100644 --- a/src/msw/dib.cpp +++ b/src/msw/dib.cpp @@ -1,28 +1,28 @@ /******************************************************************************* - * * - * MODULE : DIB.CC * - * * + * * + * MODULE : DIB.CC * + * * * DESCRIPTION : Routines for dealing with Device Independent Bitmaps. * - * * - * FUNCTIONS : * - * * + * * + * FUNCTIONS : * + * * * wxReadDIB() - Reads a DIB * - * * - * WriteDIB() - Writes a global handle in CF_DIB format* - * to a file. * - * * - * wxPaletteSize() - Calculates the palette size in bytes * - * of given DIB * - * * - * DibNumColors() - Determines the number of colors in DIB * - * * - * DibFromBitmap() - Creates a DIB repr. the DDB passed in. * - * * - * * - * lread() - Private routine to read more than 64k * - * * - * lwrite() - Private routine to write more than 64k * - * * + * * + * WriteDIB() - Writes a global handle in CF_DIB format* + * to a file. * + * * + * wxPaletteSize() - Calculates the palette size in bytes * + * of given DIB * + * * + * DibNumColors() - Determines the number of colors in DIB * + * * + * DibFromBitmap() - Creates a DIB repr. the DDB passed in. * + * * + * * + * lread() - Private routine to read more than 64k * + * * + * lwrite() - Private routine to write more than 64k * + * * *******************************************************************************/ // For compilers that support precompilation, includes "wx.h". @@ -33,9 +33,9 @@ #endif #ifndef WX_PRECOMP -#include "wx/setup.h" -#include "wx/defs.h" #include "wx/bitmap.h" +#include "wx/log.h" +#include "wx/intl.h" #endif #include @@ -48,74 +48,70 @@ #include "wx/msw/dib.h" -#ifndef __TWIN32__ -#ifndef wxUSE_NORLANDER_HEADERS -#ifdef __GNUWIN32__ -#include "wx/msw/gnuwin32/extra.h" -#endif -#endif +#ifdef __GNUWIN32_OLD__ + #include "wx/msw/gnuwin32/extra.h" #endif #ifndef SEEK_CUR /* flags for _lseek */ -#define SEEK_CUR 1 -#define SEEK_END 2 -#define SEEK_SET 0 +#define SEEK_CUR 1 +#define SEEK_END 2 +#define SEEK_SET 0 #endif -#define MAXREAD 32768 /* Number of bytes to be read during */ - /* each read operation. */ +#define MAXREAD 32768 /* Number of bytes to be read during */ + /* each read operation. */ /* Header signatutes for various resources */ -#define BFT_ICON 0x4349 /* 'IC' */ -#define BFT_BITMAP 0x4d42 /* 'BM' */ -#define BFT_CURSOR 0x5450 /* 'PT(' */ +#define BFT_ICON 0x4349 /* 'IC' */ +#define BFT_BITMAP 0x4d42 /* 'BM' */ +#define BFT_CURSOR 0x5450 /* 'PT(' */ /* macro to determine if resource is a DIB */ #define ISDIB(bft) ((bft) == BFT_BITMAP) /* Macro to align given value to the closest DWORD (unsigned long ) */ -#define ALIGNULONG(i) ((i+3)/4*4) +#define ALIGNULONG(i) ((i+3)/4*4) /* Macro to determine to round off the given value to the closest byte */ -#define WIDTHBYTES(i) ((i+31)/32*4) +#define WIDTHBYTES(i) ((i+31)/32*4) -#define PALVERSION 0x300 -#define MAXPALETTE 256 /* max. # supported palette entries */ +#define PALVERSION 0x300 +#define MAXPALETTE 256 /* max. # supported palette entries */ static DWORD PASCAL lread(int fh, VOID FAR *pv, DWORD ul); static DWORD PASCAL lwrite(int fh, VOID FAR *pv, DWORD ul); -static BOOL WriteDIB (LPTSTR szFile,HANDLE hdib); -WORD wxPaletteSize (VOID FAR * pv); // This is non-static as some apps use it externally -static WORD DibNumColors (VOID FAR * pv); -// HANDLE DibFromBitmap (HBITMAP hbm, DWORD biStyle, WORD biBits, HPALETTE hpal); +static BOOL WriteDIB (LPTSTR szFile,HANDLE hdib); +WORD wxPaletteSize (VOID FAR * pv); // This is non-static as some apps use it externally +static WORD DibNumColors (VOID FAR * pv); +// HANDLE DibFromBitmap (HBITMAP hbm, DWORD biStyle, WORD biBits, HPALETTE hpal); static BOOL PASCAL MakeBitmapAndPalette(HDC,HANDLE,HPALETTE *,HBITMAP *); /**************************************************************************** - * * - * FUNCTION : WriteDIB(LPSTR szFile,HANDLE hdib) * - * * - * PURPOSE : Write a global handle in CF_DIB format to a file. * - * * - * RETURNS : TRUE - if successful. * - * FALSE - otherwise * - * * + * * + * FUNCTION : WriteDIB(LPSTR szFile,HANDLE hdib) * + * * + * PURPOSE : Write a global handle in CF_DIB format to a file. * + * * + * RETURNS : TRUE - if successful. * + * FALSE - otherwise * + * * ****************************************************************************/ static BOOL WriteDIB(LPTSTR szFile, HANDLE hdib) { - BITMAPFILEHEADER hdr; - LPBITMAPINFOHEADER lpbi; - int fh; - OFSTRUCT of; + BITMAPFILEHEADER hdr; + LPBITMAPINFOHEADER lpbi; + int fh; + OFSTRUCT of; - if (!hdib) - return FALSE; + if (!hdib) + return FALSE; - fh = OpenFile(wxFNCONV(szFile), &of, OF_CREATE | OF_READWRITE); - if (fh == -1) - return FALSE; + fh = OpenFile(wxConvertWX2MB(szFile), &of, OF_CREATE | OF_READWRITE); + if (fh == -1) + return FALSE; #ifdef __WINDOWS_386__ lpbi = (LPBITMAPINFOHEADER) MK_FP32(GlobalLock(hdib)); @@ -123,284 +119,284 @@ static BOOL WriteDIB(LPTSTR szFile, HANDLE hdib) lpbi = (LPBITMAPINFOHEADER) GlobalLock(hdib); #endif /* Fill in the fields of the file header */ - hdr.bfType = BFT_BITMAP; - hdr.bfSize = GlobalSize(hdib) + sizeof(BITMAPFILEHEADER); - hdr.bfReserved1 = 0; - hdr.bfReserved2 = 0; - hdr.bfOffBits = (DWORD) sizeof(BITMAPFILEHEADER) + lpbi->biSize + - wxPaletteSize(lpbi); + hdr.bfType = BFT_BITMAP; + hdr.bfSize = GlobalSize(hdib) + sizeof(BITMAPFILEHEADER); + hdr.bfReserved1 = 0; + hdr.bfReserved2 = 0; + hdr.bfOffBits = (DWORD) sizeof(BITMAPFILEHEADER) + lpbi->biSize + + wxPaletteSize(lpbi); /* Write the file header */ - _lwrite(fh, (LPSTR) &hdr, sizeof(BITMAPFILEHEADER)); + _lwrite(fh, (LPSTR) &hdr, sizeof(BITMAPFILEHEADER)); /* Write the DIB header and the bits */ - lwrite(fh, (LPSTR) lpbi, GlobalSize(hdib)); + lwrite(fh, (LPSTR) lpbi, GlobalSize(hdib)); - GlobalUnlock(hdib); - _lclose(fh); - return TRUE; + GlobalUnlock(hdib); + _lclose(fh); + return TRUE; } /**************************************************************************** - * * - * FUNCTION : wxPaletteSize(VOID FAR * pv) * - * * + * * + * FUNCTION : wxPaletteSize(VOID FAR * pv) * + * * * PURPOSE : Calculates the palette size in bytes. If the info. block * - * is of the BITMAPCOREHEADER type, the number of colors is * - * multiplied by 3 to give the palette size, otherwise the * - * number of colors is multiplied by 4. * - * * - * RETURNS : Palette size in number of bytes. * - * * + * is of the BITMAPCOREHEADER type, the number of colors is * + * multiplied by 3 to give the palette size, otherwise the * + * number of colors is multiplied by 4. * + * * + * RETURNS : Palette size in number of bytes. * + * * ****************************************************************************/ WORD wxPaletteSize(VOID FAR * pv) { - LPBITMAPINFOHEADER lpbi; - WORD NumColors; + LPBITMAPINFOHEADER lpbi; + WORD NumColors; - lpbi = (LPBITMAPINFOHEADER) pv; - NumColors = DibNumColors(lpbi); + lpbi = (LPBITMAPINFOHEADER) pv; + NumColors = DibNumColors(lpbi); - if (lpbi->biSize == sizeof(BITMAPCOREHEADER)) - return NumColors * sizeof(RGBTRIPLE); - else - return NumColors * sizeof(RGBQUAD); + if (lpbi->biSize == sizeof(BITMAPCOREHEADER)) + return (WORD)(NumColors * sizeof(RGBTRIPLE)); + else + return (WORD)(NumColors * sizeof(RGBQUAD)); } /**************************************************************************** - * * - * FUNCTION : DibNumColors(VOID FAR * pv) * - * * + * * + * FUNCTION : DibNumColors(VOID FAR * pv) * + * * * PURPOSE : Determines the number of colors in the DIB by looking at * - * the BitCount filed in the info block. * - * * - * RETURNS : The number of colors in the DIB. * - * * + * the BitCount filed in the info block. * + * * + * RETURNS : The number of colors in the DIB. * + * * ****************************************************************************/ static WORD DibNumColors(VOID FAR *pv) { - int bits; - BITMAPINFOHEADER *lpbi; - BITMAPCOREHEADER *lpbc; + int bits; + BITMAPINFOHEADER *lpbi; + BITMAPCOREHEADER *lpbc; - lpbi = ((BITMAPINFOHEADER*) pv); - lpbc = ((BITMAPCOREHEADER*) pv); + lpbi = ((BITMAPINFOHEADER*) pv); + lpbc = ((BITMAPCOREHEADER*) pv); - /* With the BITMAPINFO format headers, the size of the palette - * is in biClrUsed, whereas in the BITMAPCORE - style headers, it - * is dependent on the bits per pixel ( = 2 raised to the power of - * bits/pixel). + /* With the BITMAPINFO format headers, the size of the palette + * is in biClrUsed, whereas in the BITMAPCORE - style headers, it + * is dependent on the bits per pixel ( = 2 raised to the power of + * bits/pixel). */ - if (lpbi->biSize != sizeof(BITMAPCOREHEADER)) { - if (lpbi->biClrUsed != 0) - return (WORD) lpbi->biClrUsed; - bits = lpbi->biBitCount; - } - else - bits = lpbc->bcBitCount; - - switch (bits) { + if (lpbi->biSize != sizeof(BITMAPCOREHEADER)) { + if (lpbi->biClrUsed != 0) + return (WORD) lpbi->biClrUsed; + bits = lpbi->biBitCount; + } + else + bits = lpbc->bcBitCount; + + switch (bits) { case 1: - return 2; + return 2; case 4: - return 16; + return 16; case 8: - return 256; + return 256; default: - /* A 24 bitcount DIB has no color table */ - return 0; - } + /* A 24 bitcount DIB has no color table */ + return 0; + } } /**************************************************************************** - * * - * FUNCTION : DibFromBitmap() * - * * - * PURPOSE : Will create a global memory block in DIB format that * - * represents the Device-dependent bitmap (DDB) passed in. * - * * - * RETURNS : A handle to the DIB * - * * + * * + * FUNCTION : DibFromBitmap() * + * * + * PURPOSE : Will create a global memory block in DIB format that * + * represents the Device-dependent bitmap (DDB) passed in. * + * * + * RETURNS : A handle to the DIB * + * * ****************************************************************************/ #if NOTHING static HANDLE DibFromBitmap(HBITMAP hbm, DWORD biStyle, WORD biBits, HPALETTE hpal) { - BITMAP bm; - BITMAPINFOHEADER bi; - BITMAPINFOHEADER FAR *lpbi; - DWORD dwLen; - HANDLE hdib; - HANDLE h; - HDC hdc; - - if (!hbm) - return NULL; - - if (hpal == NULL) - hpal = GetStockObject(DEFAULT_PALETTE); - - GetObject(hbm, sizeof (bm), (LPSTR) &bm); - - if (biBits == 0) - biBits = bm.bmPlanes * bm.bmBitsPixel; - - bi.biSize = sizeof(BITMAPINFOHEADER); - bi.biWidth = bm.bmWidth; - bi.biHeight = bm.bmHeight; - bi.biPlanes = 1; - bi.biBitCount = biBits; - bi.biCompression = biStyle; - bi.biSizeImage = 0; - bi.biXPelsPerMeter = 0; - bi.biYPelsPerMeter = 0; - bi.biClrUsed = 0; - bi.biClrImportant = 0; - - dwLen = bi.biSize + wxPaletteSize(&bi); - - hdc = GetDC((HWND) NULL); - hpal = SelectPalette(hdc, hpal, FALSE); - RealizePalette(hdc); - - hdib = GlobalAlloc(GHND, dwLen); - - if (!hdib) { - SelectPalette(hdc, hpal, FALSE); - ReleaseDC(NULL, hdc); - return NULL; - } + BITMAP bm; + BITMAPINFOHEADER bi; + BITMAPINFOHEADER FAR *lpbi; + DWORD dwLen; + HANDLE hdib; + HANDLE h; + HDC hdc; + + if (!hbm) + return NULL; + + if (hpal == NULL) + hpal = GetStockObject(DEFAULT_PALETTE); + + GetObject(hbm, sizeof (bm), (LPSTR) &bm); + + if (biBits == 0) + biBits = bm.bmPlanes * bm.bmBitsPixel; + + bi.biSize = sizeof(BITMAPINFOHEADER); + bi.biWidth = bm.bmWidth; + bi.biHeight = bm.bmHeight; + bi.biPlanes = 1; + bi.biBitCount = biBits; + bi.biCompression = biStyle; + bi.biSizeImage = 0; + bi.biXPelsPerMeter = 0; + bi.biYPelsPerMeter = 0; + bi.biClrUsed = 0; + bi.biClrImportant = 0; + + dwLen = bi.biSize + wxPaletteSize(&bi); + + hdc = GetDC((HWND) NULL); + hpal = SelectPalette(hdc, hpal, FALSE); + RealizePalette(hdc); + + hdib = GlobalAlloc(GHND, dwLen); + + if (!hdib) { + SelectPalette(hdc, hpal, FALSE); + ReleaseDC(NULL, hdc); + return NULL; + } #ifdef __WINDOWS_386__ - lpbi = (BITMAPINFOHEADER FAR *) MK_FP32(GlobalLock(hdib)); + lpbi = (BITMAPINFOHEADER FAR *) MK_FP32(GlobalLock(hdib)); #else - lpbi = (BITMAPINFOHEADER FAR *) GlobalLock(hdib); + lpbi = (BITMAPINFOHEADER FAR *) GlobalLock(hdib); #endif - *lpbi = bi; + *lpbi = bi; - /* call GetDIBits with a NULL lpBits param, so it will calculate the + /* call GetDIBits with a NULL lpBits param, so it will calculate the * biSizeImage field for us */ - GetDIBits(hdc, hbm, 0, (WORD) bi.biHeight, - NULL, (LPBITMAPINFO) lpbi, DIB_RGB_COLORS); + GetDIBits(hdc, hbm, 0, (WORD) bi.biHeight, + NULL, (LPBITMAPINFO) lpbi, DIB_RGB_COLORS); - bi = *lpbi; - GlobalUnlock(hdib); + bi = *lpbi; + GlobalUnlock(hdib); /* If the driver did not fill in the biSizeImage field, make one up */ - if (bi.biSizeImage == 0) { - bi.biSizeImage = WIDTHBYTES((DWORD)bm.bmWidth * biBits) * bm.bmHeight; - - if (biStyle != BI_RGB) - bi.biSizeImage = (bi.biSizeImage * 3) / 2; - } - - /* realloc the buffer big enough to hold all the bits */ - dwLen = bi.biSize + wxPaletteSize(&bi) + bi.biSizeImage; - if (h = GlobalReAlloc(hdib, dwLen, 0)) - hdib = h; - else { - GlobalFree(hdib); - hdib = NULL; - - SelectPalette(hdc, hpal, FALSE); - ReleaseDC(NULL, hdc); - return hdib; - } - - /* call GetDIBits with a NON-NULL lpBits param, and actualy get the + if (bi.biSizeImage == 0) { + bi.biSizeImage = WIDTHBYTES((DWORD)bm.bmWidth * biBits) * bm.bmHeight; + + if (biStyle != BI_RGB) + bi.biSizeImage = (bi.biSizeImage * 3) / 2; + } + + /* realloc the buffer big enough to hold all the bits */ + dwLen = bi.biSize + wxPaletteSize(&bi) + bi.biSizeImage; + if (h = GlobalReAlloc(hdib, dwLen, 0)) + hdib = h; + else { + GlobalFree(hdib); + hdib = NULL; + + SelectPalette(hdc, hpal, FALSE); + ReleaseDC(NULL, hdc); + return hdib; + } + + /* call GetDIBits with a NON-NULL lpBits param, and actualy get the * bits this time */ #ifdef __WINDOWS_386__ - lpbi = (BITMAPINFOHEADER FAR *) MK_FP32(GlobalLock(hdib)); + lpbi = (BITMAPINFOHEADER FAR *) MK_FP32(GlobalLock(hdib)); #else - lpbi = (BITMAPINFOHEADER FAR *) GlobalLock(hdib); + lpbi = (BITMAPINFOHEADER FAR *) GlobalLock(hdib); #endif - if (GetDIBits(hdc, - hbm, - 0, - (WORD) bi.biHeight, - (LPSTR) lpbi + (WORD) lpbi->biSize + wxPaletteSize(lpbi), - (LPBITMAPINFO) lpbi, DIB_RGB_COLORS) == 0) { - GlobalUnlock(hdib); - hdib = NULL; - SelectPalette(hdc, hpal, FALSE); - ReleaseDC((HWND) NULL, hdc); - return NULL; - } - - bi = *lpbi; - GlobalUnlock(hdib); - - SelectPalette(hdc, hpal, FALSE); - ReleaseDC(NULL, hdc); - return hdib; + if (GetDIBits(hdc, + hbm, + 0, + (WORD) bi.biHeight, + (LPSTR) lpbi + (WORD) lpbi->biSize + wxPaletteSize(lpbi), + (LPBITMAPINFO) lpbi, DIB_RGB_COLORS) == 0) { + GlobalUnlock(hdib); + hdib = NULL; + SelectPalette(hdc, hpal, FALSE); + ReleaseDC((HWND) NULL, hdc); + return NULL; + } + + bi = *lpbi; + GlobalUnlock(hdib); + + SelectPalette(hdc, hpal, FALSE); + ReleaseDC(NULL, hdc); + return hdib; } #endif /************* PRIVATE ROUTINES TO READ/WRITE MORE THAN 64K ***************/ /**************************************************************************** - * * - * FUNCTION : lread(int fh, VOID FAR *pv, DWORD ul) * - * * + * * + * FUNCTION : lread(int fh, VOID FAR *pv, DWORD ul) * + * * * PURPOSE : Reads data in steps of 32k till all the data has been read.* - * * - * RETURNS : 0 - If read did not proceed correctly. * - * number of bytes read otherwise. * - * * + * * + * RETURNS : 0 - If read did not proceed correctly. * + * number of bytes read otherwise. * + * * ****************************************************************************/ static DWORD PASCAL lread(int fh, void far *pv, DWORD ul) { - DWORD ulT = ul; + DWORD ulT = ul; #if defined(WINNT) || defined(__WIN32__) || defined(__WIN32__) || defined(__WXWINE__) - BYTE *hp = (BYTE *) pv; + BYTE *hp = (BYTE *) pv; #else - BYTE huge *hp = (BYTE huge *) pv; + BYTE huge *hp = (BYTE huge *) pv; #endif - while (ul > (DWORD) MAXREAD) { - if (_lread(fh, (LPSTR) hp, (WORD) MAXREAD) != MAXREAD) - return 0; - ul -= MAXREAD; - hp += MAXREAD; - } - if (_lread(fh, (LPSTR) hp, (WORD) ul) != (WORD) ul) - return 0; - return ulT; + while (ul > (DWORD) MAXREAD) { + if (_lread(fh, (LPSTR) hp, (WORD) MAXREAD) != MAXREAD) + return 0; + ul -= MAXREAD; + hp += MAXREAD; + } + if (_lread(fh, (LPSTR) hp, (WXUINT) ul) != (WXUINT) ul) + return 0; + return ulT; } /**************************************************************************** - * * - * FUNCTION : lwrite(int fh, VOID FAR *pv, DWORD ul) * - * * + * * + * FUNCTION : lwrite(int fh, VOID FAR *pv, DWORD ul) * + * * * PURPOSE : Writes data in steps of 32k till all the data is written. * - * * - * RETURNS : 0 - If write did not proceed correctly. * - * number of bytes written otherwise. * - * * + * * + * RETURNS : 0 - If write did not proceed correctly. * + * number of bytes written otherwise. * + * * ****************************************************************************/ static DWORD PASCAL lwrite(int fh, VOID FAR *pv, DWORD ul) { - DWORD ulT = ul; + DWORD ulT = ul; #if defined(WINNT) || defined(__WIN32__) || defined(__WIN32__) || defined(__WXWINE__) - BYTE *hp = (BYTE *) pv; + BYTE *hp = (BYTE *) pv; #else - BYTE huge *hp = (BYTE huge *) pv; + BYTE huge *hp = (BYTE huge *) pv; #endif - while (ul > MAXREAD) { - if (_lwrite(fh, (LPSTR) hp, (WORD) MAXREAD) != MAXREAD) - return 0; - ul -= MAXREAD; - hp += MAXREAD; - } - if (_lwrite(fh, (LPSTR) hp, (WORD) ul) != (WORD) ul) - return 0; - return ulT; + while (ul > MAXREAD) { + if (_lwrite(fh, (LPSTR) hp, (WORD) MAXREAD) != MAXREAD) + return 0; + ul -= MAXREAD; + hp += MAXREAD; + } + if (_lwrite(fh, (LPSTR) hp, (WXUINT) ul) != (WXUINT) ul) + return 0; + return ulT; } /**************************************************************************** @@ -408,25 +404,24 @@ static DWORD PASCAL lwrite(int fh, VOID FAR *pv, DWORD ul) * FUNCTION : ReadDIB(hWnd) * * PURPOSE : Reads a DIB from a file, obtains a handle to its - * BITMAPINFO struct. and loads the DIB. Once the DIB + * BITMAPINFO struct. and loads the DIB. Once the DIB * is loaded, the function also creates a bitmap and * palette out of the DIB for a device-dependent form. * * RETURNS : TRUE - DIB loaded and bitmap/palette created * The DIBINIT structure pointed to by pInfo is * filled with the appropriate handles. - * FALSE - otherwise + * FALSE - otherwise * ****************************************************************************/ BOOL wxReadDIB(LPTSTR lpFileName, HBITMAP *bitmap, HPALETTE *palette) { int fh; LPBITMAPINFOHEADER lpbi; - OFSTRUCT of; + OFSTRUCT of; BITMAPFILEHEADER bf; - WORD nNumColors; + WORD nNumColors; BOOL result = FALSE; - wxChar str[128]; WORD offBits; HDC hDC; BOOL bCoreHead = FALSE; @@ -434,17 +429,16 @@ BOOL wxReadDIB(LPTSTR lpFileName, HBITMAP *bitmap, HPALETTE *palette) /* Open the file and get a handle to it's BITMAPINFO */ - fh = OpenFile (wxFNCONV(lpFileName), &of, OF_READ); + fh = OpenFile (wxConvertWX2MB(lpFileName), &of, OF_READ); if (fh == -1) { - wsprintf(str,wxT("Can't open file '%s'"), lpFileName); - MessageBox(NULL, str, wxT("Error"), MB_ICONSTOP | MB_OK); - return (0); + wxLogError(_("Can't open file '%s'"), lpFileName); + return (0); } hDIB = GlobalAlloc(GHND, (DWORD)(sizeof(BITMAPINFOHEADER) + - 256 * sizeof(RGBQUAD))); + 256 * sizeof(RGBQUAD))); if (!hDIB) - return(0); + return(0); #ifdef __WINDOWS_386__ lpbi = (LPBITMAPINFOHEADER)MK_FP32(GlobalLock(hDIB)); @@ -454,56 +448,56 @@ BOOL wxReadDIB(LPTSTR lpFileName, HBITMAP *bitmap, HPALETTE *palette) /* read the BITMAPFILEHEADER */ if (sizeof (bf) != _lread (fh, (LPSTR)&bf, sizeof (bf))) - goto ErrExit; + goto ErrExit; - if (bf.bfType != 0x4d42) /* 'BM' */ - goto ErrExit; + if (bf.bfType != 0x4d42) /* 'BM' */ + goto ErrExit; if (sizeof(BITMAPCOREHEADER) != _lread (fh, (LPSTR)lpbi, sizeof(BITMAPCOREHEADER))) - goto ErrExit; + goto ErrExit; if (lpbi->biSize == sizeof(BITMAPCOREHEADER)) { - lpbi->biSize = sizeof(BITMAPINFOHEADER); - lpbi->biBitCount = ((LPBITMAPCOREHEADER)lpbi)->bcBitCount; - lpbi->biPlanes = ((LPBITMAPCOREHEADER)lpbi)->bcPlanes; - lpbi->biHeight = ((LPBITMAPCOREHEADER)lpbi)->bcHeight; - lpbi->biWidth = ((LPBITMAPCOREHEADER)lpbi)->bcWidth; - bCoreHead = TRUE; + lpbi->biSize = sizeof(BITMAPINFOHEADER); + lpbi->biBitCount = ((LPBITMAPCOREHEADER)lpbi)->bcBitCount; + lpbi->biPlanes = ((LPBITMAPCOREHEADER)lpbi)->bcPlanes; + lpbi->biHeight = ((LPBITMAPCOREHEADER)lpbi)->bcHeight; + lpbi->biWidth = ((LPBITMAPCOREHEADER)lpbi)->bcWidth; + bCoreHead = TRUE; } else { - // get to the start of the header and read INFOHEADER + // get to the start of the header and read INFOHEADER _llseek(fh,sizeof(BITMAPFILEHEADER),SEEK_SET); - if (sizeof(BITMAPINFOHEADER) != _lread (fh, (LPSTR)lpbi, sizeof(BITMAPINFOHEADER))) - goto ErrExit; + if (sizeof(BITMAPINFOHEADER) != _lread (fh, (LPSTR)lpbi, sizeof(BITMAPINFOHEADER))) + goto ErrExit; } nNumColors = (WORD)lpbi->biClrUsed; if ( nNumColors == 0 ) { - /* no color table for 24-bit, default size otherwise */ - if (lpbi->biBitCount != 24) - nNumColors = 1 << lpbi->biBitCount; /* standard size table */ + /* no color table for 24-bit, default size otherwise */ + if (lpbi->biBitCount != 24) + nNumColors = 1 << lpbi->biBitCount; /* standard size table */ } - /* fill in some default values if they are zero */ + /* fill in some default values if they are zero */ if (lpbi->biClrUsed == 0) - lpbi->biClrUsed = nNumColors; + lpbi->biClrUsed = nNumColors; if (lpbi->biSizeImage == 0) { - lpbi->biSizeImage = ((((lpbi->biWidth * (DWORD)lpbi->biBitCount) + 31) & ~31) >> 3) - * lpbi->biHeight; + lpbi->biSizeImage = ((((lpbi->biWidth * (DWORD)lpbi->biBitCount) + 31) & ~31) >> 3) + * lpbi->biHeight; } /* get a proper-sized buffer for header, color table and bits */ GlobalUnlock(hDIB); hDIB = GlobalReAlloc(hDIB, lpbi->biSize + - nNumColors * sizeof(RGBQUAD) + - lpbi->biSizeImage, 0); - if (!hDIB) /* can't resize buffer for loading */ - goto ErrExit2; + nNumColors * sizeof(RGBQUAD) + + lpbi->biSizeImage, 0); + if (!hDIB) /* can't resize buffer for loading */ + goto ErrExit2; #ifdef __WINDOWS_386__ lpbi = (LPBITMAPINFOHEADER)MK_FP32(GlobalLock(hDIB)); @@ -513,28 +507,28 @@ BOOL wxReadDIB(LPTSTR lpFileName, HBITMAP *bitmap, HPALETTE *palette) /* read the color table */ if (!bCoreHead) - _lread(fh, (LPSTR)(lpbi) + lpbi->biSize, nNumColors * sizeof(RGBQUAD)); + _lread(fh, (LPSTR)(lpbi) + lpbi->biSize, nNumColors * sizeof(RGBQUAD)); else { - signed int i; - RGBQUAD FAR *pQuad; - RGBTRIPLE FAR *pTriple; - - _lread(fh, (LPSTR)(lpbi) + lpbi->biSize, nNumColors * sizeof(RGBTRIPLE)); - - pQuad = (RGBQUAD FAR *)((LPSTR)lpbi + lpbi->biSize); - pTriple = (RGBTRIPLE FAR *) pQuad; - for (i = nNumColors - 1; i >= 0; i--) - { - pQuad[i].rgbRed = pTriple[i].rgbtRed; - pQuad[i].rgbBlue = pTriple[i].rgbtBlue; - pQuad[i].rgbGreen = pTriple[i].rgbtGreen; - pQuad[i].rgbReserved = 0; - } + signed int i; + RGBQUAD FAR *pQuad; + RGBTRIPLE FAR *pTriple; + + _lread(fh, (LPSTR)(lpbi) + lpbi->biSize, nNumColors * sizeof(RGBTRIPLE)); + + pQuad = (RGBQUAD FAR *)((LPSTR)lpbi + lpbi->biSize); + pTriple = (RGBTRIPLE FAR *) pQuad; + for (i = nNumColors - 1; i >= 0; i--) + { + pQuad[i].rgbRed = pTriple[i].rgbtRed; + pQuad[i].rgbBlue = pTriple[i].rgbtBlue; + pQuad[i].rgbGreen = pTriple[i].rgbtGreen; + pQuad[i].rgbReserved = 0; + } } /* offset to the bits from start of DIB header */ - offBits = (WORD)lpbi->biSize + nNumColors * sizeof(RGBQUAD); + offBits = (WORD)(lpbi->biSize + nNumColors * sizeof(RGBQUAD)); if (bf.bfOffBits != 0L) { @@ -543,28 +537,28 @@ BOOL wxReadDIB(LPTSTR lpFileName, HBITMAP *bitmap, HPALETTE *palette) if (lpbi->biSizeImage == lread(fh, (LPSTR)lpbi + offBits, lpbi->biSizeImage)) { - GlobalUnlock(hDIB); - - hDC = GetDC(NULL); - if (!MakeBitmapAndPalette(hDC, hDIB, palette, - bitmap)) - { - ReleaseDC(NULL,hDC); - goto ErrExit2; - } - else - { - ReleaseDC(NULL,hDC); + GlobalUnlock(hDIB); + + hDC = GetDC(NULL); + if (!MakeBitmapAndPalette(hDC, hDIB, palette, + bitmap)) + { + ReleaseDC(NULL,hDC); + goto ErrExit2; + } + else + { + ReleaseDC(NULL,hDC); GlobalFree(hDIB); - result = TRUE; - } + result = TRUE; + } } else { ErrExit: - GlobalUnlock(hDIB); + GlobalUnlock(hDIB); ErrExit2: - GlobalFree(hDIB); + GlobalFree(hDIB); } _lclose(fh); @@ -587,7 +581,7 @@ ErrExit2: * ****************************************************************************/ static BOOL PASCAL MakeBitmapAndPalette(HDC hDC, HANDLE hDIB, - HPALETTE * phPal, HBITMAP * phBitmap) + HPALETTE * phPal, HBITMAP * phBitmap) { LPBITMAPINFOHEADER lpInfo; BOOL result = FALSE; @@ -604,41 +598,44 @@ static BOOL PASCAL MakeBitmapAndPalette(HDC hDC, HANDLE hDIB, hPalette = wxMakeDIBPalette(lpInfo); if ( hPalette ) { - // Need to realize palette for converting DIB to bitmap. - hOldPal = SelectPalette(hDC, hPalette, TRUE); - RealizePalette(hDC); - - lpBits = (LPSTR)lpInfo + (WORD)lpInfo->biSize + - (WORD)lpInfo->biClrUsed * sizeof(RGBQUAD); - hBitmap = CreateDIBitmap(hDC, lpInfo, CBM_INIT, lpBits, - (LPBITMAPINFO)lpInfo, DIB_RGB_COLORS); - - SelectPalette(hDC, hOldPal, TRUE); - RealizePalette(hDC); - - if (!hBitmap) - DeleteObject(hPalette); - else - { - *phBitmap = hBitmap; - *phPal = hPalette; - result = TRUE; - } + // Need to realize palette for converting DIB to bitmap. + hOldPal = SelectPalette(hDC, hPalette, TRUE); + RealizePalette(hDC); + + lpBits = (LPSTR)lpInfo + (WORD)lpInfo->biSize + + (WORD)lpInfo->biClrUsed * sizeof(RGBQUAD); + hBitmap = CreateDIBitmap(hDC, lpInfo, CBM_INIT, lpBits, + (LPBITMAPINFO)lpInfo, DIB_RGB_COLORS); + + SelectPalette(hDC, hOldPal, TRUE); + RealizePalette(hDC); + + if (!hBitmap) + DeleteObject(hPalette); + else + { + *phBitmap = hBitmap; + *phPal = hPalette; + result = TRUE; + } } + + GlobalUnlock (hDIB); // glt + return(result); } /**************************************************************************** - * * - * FUNCTION : wxMakeDIBPalette(lpInfo) * - * * + * * + * FUNCTION : wxMakeDIBPalette(lpInfo) * + * * * PURPOSE : Given a BITMAPINFOHEADER, create a palette based on - * the color table. + * the color table. * - * * + * * * RETURNS : non-zero - handle of a corresponding palette - * zero - unable to create palette - * * + * zero - unable to create palette + * * ****************************************************************************/ HPALETTE wxMakeDIBPalette(LPBITMAPINFOHEADER lpInfo) { @@ -656,34 +653,34 @@ HPALETTE wxMakeDIBPalette(LPBITMAPINFOHEADER lpInfo) if (lpInfo->biClrUsed) { /* - npPal = (NPLOGPALETTE)LocalAlloc(LMEM_FIXED, sizeof(LOGPALETTE) + - (WORD)lpInfo->biClrUsed * sizeof(PALETTEENTRY)); + npPal = (NPLOGPALETTE)LocalAlloc(LMEM_FIXED, sizeof(LOGPALETTE) + + (WORD)lpInfo->biClrUsed * sizeof(PALETTEENTRY)); */ - npPal = (LPLOGPALETTE)malloc(sizeof(LOGPALETTE) + - (WORD)lpInfo->biClrUsed * sizeof(PALETTEENTRY)); + npPal = (LPLOGPALETTE)malloc(sizeof(LOGPALETTE) + + (WORD)lpInfo->biClrUsed * sizeof(PALETTEENTRY)); if (!npPal) - return(FALSE); + return(FALSE); - npPal->palVersion = 0x300; - npPal->palNumEntries = (WORD)lpInfo->biClrUsed; + npPal->palVersion = 0x300; + npPal->palNumEntries = (WORD)lpInfo->biClrUsed; - /* get pointer to the color table */ - lpRGB = (RGBQUAD FAR *)((LPSTR)lpInfo + lpInfo->biSize); + /* get pointer to the color table */ + lpRGB = (RGBQUAD FAR *)((LPSTR)lpInfo + lpInfo->biSize); - /* copy colors from the color table to the LogPalette structure */ - for (i = 0; i < lpInfo->biClrUsed; i++, lpRGB++) - { - npPal->palPalEntry[i].peRed = lpRGB->rgbRed; - npPal->palPalEntry[i].peGreen = lpRGB->rgbGreen; - npPal->palPalEntry[i].peBlue = lpRGB->rgbBlue; - npPal->palPalEntry[i].peFlags = 0; - } + /* copy colors from the color table to the LogPalette structure */ + for (i = 0; (DWORD)i < lpInfo->biClrUsed; i++, lpRGB++) + { + npPal->palPalEntry[i].peRed = lpRGB->rgbRed; + npPal->palPalEntry[i].peGreen = lpRGB->rgbGreen; + npPal->palPalEntry[i].peBlue = lpRGB->rgbBlue; + npPal->palPalEntry[i].peFlags = 0; + } - hLogPal = CreatePalette((LPLOGPALETTE)npPal); -// LocalFree((HANDLE)npPal); + hLogPal = CreatePalette((LPLOGPALETTE)npPal); +// LocalFree((HANDLE)npPal); free(npPal); - return(hLogPal); + return(hLogPal); } /* 24-bit DIB with no color table. return default palette. Another @@ -691,7 +688,7 @@ HPALETTE wxMakeDIBPalette(LPBITMAPINFOHEADER lpInfo) ** some good color choices. */ else - return((HPALETTE) GetStockObject(DEFAULT_PALETTE)); + return((HPALETTE) GetStockObject(DEFAULT_PALETTE)); #endif } @@ -711,12 +708,14 @@ bool wxLoadIntoBitmap(wxChar *filename, wxBitmap *bitmap, wxPalette **pal) if (hPalette) { +#if wxUSE_PALETTE if (pal) { *pal = new wxPalette; (*pal)->SetHPALETTE((WXHPALETTE) hPalette); } else +#endif // wxUSE_PALETTE DeleteObject(hPalette); } else if (pal) @@ -931,8 +930,10 @@ HANDLE wxBitmapToDIB (HBITMAP hBitmap, HPALETTE hPal) bool wxSaveBitmap(wxChar *filename, wxBitmap *bitmap, wxPalette *colourmap) { HPALETTE hPalette = 0; +#if wxUSE_PALETTE if (colourmap) hPalette = (HPALETTE) colourmap->GetHPALETTE(); +#endif // wxUSE_PALETTE HANDLE dibHandle = wxBitmapToDIB((HBITMAP) bitmap->GetHBITMAP(), hPalette); if (dibHandle) @@ -944,4 +945,3 @@ bool wxSaveBitmap(wxChar *filename, wxBitmap *bitmap, wxPalette *colourmap) else return FALSE; } -