From f9158592e1478b2013afc7041d9ed041cf2d2f4a Mon Sep 17 00:00:00 2001 From: David Walter Seikel Date: Mon, 13 Jan 2014 19:47:58 +1000 Subject: Update Irrlicht to 1.8.1. Include actual change markers this time. lol --- .../Irrlicht/libpng/contrib/visupng/VisualPng.c | 969 --------------------- 1 file changed, 969 deletions(-) delete mode 100644 libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/visupng/VisualPng.c (limited to 'libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/visupng/VisualPng.c') diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/visupng/VisualPng.c b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/visupng/VisualPng.c deleted file mode 100644 index 009f120..0000000 --- a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/visupng/VisualPng.c +++ /dev/null @@ -1,969 +0,0 @@ -/*------------------------------------ - * VisualPng.C -- Shows a PNG image - *------------------------------------ - * - * Copyright 2000, Willem van Schaik. - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -/* switches */ - -/* defines */ - -#define PROGNAME "VisualPng" -#define LONGNAME "Win32 Viewer for PNG-files" -#define VERSION "1.0 of 2000 June 07" - -/* constants */ - -#define MARGIN 8 - -/* standard includes */ - -#include -#include -#include -#include - -/* application includes */ - -#include "png.h" -#include "pngfile.h" -#include "resource.h" - -/* macros */ - -/* function prototypes */ - -LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM); -BOOL CALLBACK AboutDlgProc (HWND, UINT, WPARAM, LPARAM) ; - -BOOL CenterAbout (HWND hwndChild, HWND hwndParent); - -BOOL BuildPngList (PTSTR pstrPathName, TCHAR **ppFileList, int *pFileCount, - int *pFileIndex); - -BOOL SearchPngList (TCHAR *pFileList, int FileCount, int *pFileIndex, - PTSTR pstrPrevName, PTSTR pstrNextName); - -BOOL LoadImageFile(HWND hwnd, PTSTR pstrPathName, - png_byte **ppbImage, int *pxImgSize, int *pyImgSize, int *piChannels, - png_color *pBkgColor); - -BOOL DisplayImage (HWND hwnd, BYTE **ppDib, - BYTE **ppDiData, int cxWinSize, int cyWinSize, - BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels, - BOOL bStretched); - -BOOL InitBitmap ( - BYTE *pDiData, int cxWinSize, int cyWinSize); - -BOOL FillBitmap ( - BYTE *pDiData, int cxWinSize, int cyWinSize, - BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels, - BOOL bStretched); - -/* a few global variables */ - -static char *szProgName = PROGNAME; -static char *szAppName = LONGNAME; -static char *szIconName = PROGNAME; -static char szCmdFileName [MAX_PATH]; - -/* MAIN routine */ - -int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, - PSTR szCmdLine, int iCmdShow) -{ - HACCEL hAccel; - HWND hwnd; - MSG msg; - WNDCLASS wndclass; - int ixBorders, iyBorders; - - wndclass.style = CS_HREDRAW | CS_VREDRAW; - wndclass.lpfnWndProc = WndProc; - wndclass.cbClsExtra = 0; - wndclass.cbWndExtra = 0; - wndclass.hInstance = hInstance; - wndclass.hIcon = LoadIcon (hInstance, szIconName) ; - wndclass.hCursor = LoadCursor (NULL, IDC_ARROW); - wndclass.hbrBackground = NULL; /* (HBRUSH) GetStockObject (GRAY_BRUSH); */ - wndclass.lpszMenuName = szProgName; - wndclass.lpszClassName = szProgName; - - if (!RegisterClass (&wndclass)) - { - MessageBox (NULL, TEXT ("Error: this program requires Windows NT!"), - szProgName, MB_ICONERROR); - return 0; - } - - /* if filename given on commandline, store it */ - if ((szCmdLine != NULL) && (*szCmdLine != '\0')) - if (szCmdLine[0] == '"') - strncpy (szCmdFileName, szCmdLine + 1, strlen(szCmdLine) - 2); - else - strcpy (szCmdFileName, szCmdLine); - else - strcpy (szCmdFileName, ""); - - /* calculate size of window-borders */ - ixBorders = 2 * (GetSystemMetrics (SM_CXBORDER) + - GetSystemMetrics (SM_CXDLGFRAME)); - iyBorders = 2 * (GetSystemMetrics (SM_CYBORDER) + - GetSystemMetrics (SM_CYDLGFRAME)) + - GetSystemMetrics (SM_CYCAPTION) + - GetSystemMetrics (SM_CYMENUSIZE) + - 1; /* WvS: don't ask me why? */ - - hwnd = CreateWindow (szProgName, szAppName, - WS_OVERLAPPEDWINDOW, - CW_USEDEFAULT, CW_USEDEFAULT, - 512 + 2 * MARGIN + ixBorders, 384 + 2 * MARGIN + iyBorders, -/* CW_USEDEFAULT, CW_USEDEFAULT, */ - NULL, NULL, hInstance, NULL); - - ShowWindow (hwnd, iCmdShow); - UpdateWindow (hwnd); - - hAccel = LoadAccelerators (hInstance, szProgName); - - while (GetMessage (&msg, NULL, 0, 0)) - { - if (!TranslateAccelerator (hwnd, hAccel, &msg)) - { - TranslateMessage (&msg); - DispatchMessage (&msg); - } - } - return msg.wParam; -} - -LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, - LPARAM lParam) -{ - static HINSTANCE hInstance ; - static HDC hdc; - static PAINTSTRUCT ps; - static HMENU hMenu; - - static BITMAPFILEHEADER *pbmfh; - static BITMAPINFOHEADER *pbmih; - static BYTE *pbImage; - static int cxWinSize, cyWinSize; - static int cxImgSize, cyImgSize; - static int cImgChannels; - static png_color bkgColor = {127, 127, 127}; - - static BOOL bStretched = TRUE; - - static BYTE *pDib = NULL; - static BYTE *pDiData = NULL; - - static TCHAR szImgPathName [MAX_PATH]; - static TCHAR szTitleName [MAX_PATH]; - - static TCHAR *pPngFileList = NULL; - static int iPngFileCount; - static int iPngFileIndex; - - BOOL bOk; - - switch (message) - { - case WM_CREATE: - hInstance = ((LPCREATESTRUCT) lParam)->hInstance ; - PngFileInitialize (hwnd); - - strcpy (szImgPathName, ""); - - /* in case we process file given on command-line */ - - if (szCmdFileName[0] != '\0') - { - strcpy (szImgPathName, szCmdFileName); - - /* read the other png-files in the directory for later */ - /* next/previous commands */ - - BuildPngList (szImgPathName, &pPngFileList, &iPngFileCount, - &iPngFileIndex); - - /* load the image from file */ - - if (!LoadImageFile (hwnd, szImgPathName, - &pbImage, &cxImgSize, &cyImgSize, &cImgChannels, &bkgColor)) - return 0; - - /* invalidate the client area for later update */ - - InvalidateRect (hwnd, NULL, TRUE); - - /* display the PNG into the DIBitmap */ - - DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize, - pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched); - } - - return 0; - - case WM_SIZE: - cxWinSize = LOWORD (lParam); - cyWinSize = HIWORD (lParam); - - /* invalidate the client area for later update */ - - InvalidateRect (hwnd, NULL, TRUE); - - /* display the PNG into the DIBitmap */ - - DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize, - pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched); - - return 0; - - case WM_INITMENUPOPUP: - hMenu = GetMenu (hwnd); - - if (pbImage) - EnableMenuItem (hMenu, IDM_FILE_SAVE, MF_ENABLED); - else - EnableMenuItem (hMenu, IDM_FILE_SAVE, MF_GRAYED); - - return 0; - - case WM_COMMAND: - hMenu = GetMenu (hwnd); - - switch (LOWORD (wParam)) - { - case IDM_FILE_OPEN: - - /* show the File Open dialog box */ - - if (!PngFileOpenDlg (hwnd, szImgPathName, szTitleName)) - return 0; - - /* read the other png-files in the directory for later */ - /* next/previous commands */ - - BuildPngList (szImgPathName, &pPngFileList, &iPngFileCount, - &iPngFileIndex); - - /* load the image from file */ - - if (!LoadImageFile (hwnd, szImgPathName, - &pbImage, &cxImgSize, &cyImgSize, &cImgChannels, &bkgColor)) - return 0; - - /* invalidate the client area for later update */ - - InvalidateRect (hwnd, NULL, TRUE); - - /* display the PNG into the DIBitmap */ - - DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize, - pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched); - - return 0; - - case IDM_FILE_SAVE: - - /* show the File Save dialog box */ - - if (!PngFileSaveDlg (hwnd, szImgPathName, szTitleName)) - return 0; - - /* save the PNG to a disk file */ - - SetCursor (LoadCursor (NULL, IDC_WAIT)); - ShowCursor (TRUE); - - bOk = PngSaveImage (szImgPathName, pDiData, cxWinSize, cyWinSize, - bkgColor); - - ShowCursor (FALSE); - SetCursor (LoadCursor (NULL, IDC_ARROW)); - - if (!bOk) - MessageBox (hwnd, TEXT ("Error in saving the PNG image"), - szProgName, MB_ICONEXCLAMATION | MB_OK); - return 0; - - case IDM_FILE_NEXT: - - /* read next entry in the directory */ - - if (SearchPngList (pPngFileList, iPngFileCount, &iPngFileIndex, - NULL, szImgPathName)) - { - if (strcmp (szImgPathName, "") == 0) - return 0; - - /* load the image from file */ - - if (!LoadImageFile (hwnd, szImgPathName, &pbImage, - &cxImgSize, &cyImgSize, &cImgChannels, &bkgColor)) - return 0; - - /* invalidate the client area for later update */ - - InvalidateRect (hwnd, NULL, TRUE); - - /* display the PNG into the DIBitmap */ - - DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize, - pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched); - } - - return 0; - - case IDM_FILE_PREVIOUS: - - /* read previous entry in the directory */ - - if (SearchPngList (pPngFileList, iPngFileCount, &iPngFileIndex, - szImgPathName, NULL)) - { - - if (strcmp (szImgPathName, "") == 0) - return 0; - - /* load the image from file */ - - if (!LoadImageFile (hwnd, szImgPathName, &pbImage, &cxImgSize, - &cyImgSize, &cImgChannels, &bkgColor)) - return 0; - - /* invalidate the client area for later update */ - - InvalidateRect (hwnd, NULL, TRUE); - - /* display the PNG into the DIBitmap */ - - DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize, - pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched); - } - - return 0; - - case IDM_FILE_EXIT: - - /* more cleanup needed... */ - - /* free image buffer */ - - if (pDib != NULL) - { - free (pDib); - pDib = NULL; - } - - /* free file-list */ - - if (pPngFileList != NULL) - { - free (pPngFileList); - pPngFileList = NULL; - } - - /* let's go ... */ - - exit (0); - - return 0; - - case IDM_OPTIONS_STRETCH: - bStretched = !bStretched; - if (bStretched) - CheckMenuItem (hMenu, IDM_OPTIONS_STRETCH, MF_CHECKED); - else - CheckMenuItem (hMenu, IDM_OPTIONS_STRETCH, MF_UNCHECKED); - - /* invalidate the client area for later update */ - - InvalidateRect (hwnd, NULL, TRUE); - - /* display the PNG into the DIBitmap */ - - DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize, - pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched); - - return 0; - - case IDM_HELP_ABOUT: - DialogBox (hInstance, TEXT ("AboutBox"), hwnd, AboutDlgProc) ; - return 0; - - } /* end switch */ - - break; - - case WM_PAINT: - hdc = BeginPaint (hwnd, &ps); - - if (pDib) - SetDIBitsToDevice (hdc, 0, 0, cxWinSize, cyWinSize, 0, 0, - 0, cyWinSize, pDiData, (BITMAPINFO *) pDib, DIB_RGB_COLORS); - - EndPaint (hwnd, &ps); - return 0; - - case WM_DESTROY: - if (pbmfh) - { - free (pbmfh); - pbmfh = NULL; - } - - PostQuitMessage (0); - return 0; - } - - return DefWindowProc (hwnd, message, wParam, lParam); -} - -BOOL CALLBACK AboutDlgProc (HWND hDlg, UINT message, - WPARAM wParam, LPARAM lParam) -{ - switch (message) - { - case WM_INITDIALOG : - ShowWindow (hDlg, SW_HIDE); - CenterAbout (hDlg, GetWindow (hDlg, GW_OWNER)); - ShowWindow (hDlg, SW_SHOW); - return TRUE ; - - case WM_COMMAND : - switch (LOWORD (wParam)) - { - case IDOK : - case IDCANCEL : - EndDialog (hDlg, 0) ; - return TRUE ; - } - break ; - } - return FALSE ; -} - -/*--------------- - * CenterAbout - *--------------- - */ -BOOL CenterAbout (HWND hwndChild, HWND hwndParent) -{ - RECT rChild, rParent, rWorkArea; - int wChild, hChild, wParent, hParent; - int xNew, yNew; - BOOL bResult; - - /* Get the Height and Width of the child window */ - GetWindowRect (hwndChild, &rChild); - wChild = rChild.right - rChild.left; - hChild = rChild.bottom - rChild.top; - - /* Get the Height and Width of the parent window */ - GetWindowRect (hwndParent, &rParent); - wParent = rParent.right - rParent.left; - hParent = rParent.bottom - rParent.top; - - /* Get the limits of the 'workarea' */ - bResult = SystemParametersInfo( - SPI_GETWORKAREA, /* system parameter to query or set */ - sizeof(RECT), - &rWorkArea, - 0); - if (!bResult) { - rWorkArea.left = rWorkArea.top = 0; - rWorkArea.right = GetSystemMetrics(SM_CXSCREEN); - rWorkArea.bottom = GetSystemMetrics(SM_CYSCREEN); - } - - /* Calculate new X position, then adjust for workarea */ - xNew = rParent.left + ((wParent - wChild) /2); - if (xNew < rWorkArea.left) { - xNew = rWorkArea.left; - } else if ((xNew+wChild) > rWorkArea.right) { - xNew = rWorkArea.right - wChild; - } - - /* Calculate new Y position, then adjust for workarea */ - yNew = rParent.top + ((hParent - hChild) /2); - if (yNew < rWorkArea.top) { - yNew = rWorkArea.top; - } else if ((yNew+hChild) > rWorkArea.bottom) { - yNew = rWorkArea.bottom - hChild; - } - - /* Set it, and return */ - return SetWindowPos (hwndChild, NULL, xNew, yNew, 0, 0, SWP_NOSIZE | - SWP_NOZORDER); -} - -/*---------------- - * BuildPngList - *---------------- - */ -BOOL BuildPngList (PTSTR pstrPathName, TCHAR **ppFileList, int *pFileCount, - int *pFileIndex) -{ - static TCHAR szImgPathName [MAX_PATH]; - static TCHAR szImgFileName [MAX_PATH]; - static TCHAR szImgFindName [MAX_PATH]; - - WIN32_FIND_DATA finddata; - HANDLE hFind; - - static TCHAR szTmp [MAX_PATH]; - BOOL bOk; - int i, ii; - int j, jj; - - /* free previous file-list */ - - if (*ppFileList != NULL) - { - free (*ppFileList); - *ppFileList = NULL; - } - - /* extract foldername, filename and search-name */ - - strcpy (szImgPathName, pstrPathName); - strcpy (szImgFileName, strrchr (pstrPathName, '\\') + 1); - - strcpy (szImgFindName, szImgPathName); - *(strrchr (szImgFindName, '\\') + 1) = '\0'; - strcat (szImgFindName, "*.png"); - - /* first cycle: count number of files in directory for memory allocation */ - - *pFileCount = 0; - - hFind = FindFirstFile(szImgFindName, &finddata); - bOk = (hFind != (HANDLE) -1); - - while (bOk) - { - *pFileCount += 1; - bOk = FindNextFile(hFind, &finddata); - } - FindClose(hFind); - - /* allocation memory for file-list */ - - *ppFileList = (TCHAR *) malloc (*pFileCount * MAX_PATH); - - /* second cycle: read directory and store filenames in file-list */ - - hFind = FindFirstFile(szImgFindName, &finddata); - bOk = (hFind != (HANDLE) -1); - - i = 0; - ii = 0; - while (bOk) - { - strcpy (*ppFileList + ii, szImgPathName); - strcpy (strrchr(*ppFileList + ii, '\\') + 1, finddata.cFileName); - - if (strcmp(pstrPathName, *ppFileList + ii) == 0) - *pFileIndex = i; - - ii += MAX_PATH; - i++; - - bOk = FindNextFile(hFind, &finddata); - } - FindClose(hFind); - - /* finally we must sort the file-list */ - - for (i = 0; i < *pFileCount - 1; i++) - { - ii = i * MAX_PATH; - for (j = i+1; j < *pFileCount; j++) - { - jj = j * MAX_PATH; - if (strcmp (*ppFileList + ii, *ppFileList + jj) > 0) - { - strcpy (szTmp, *ppFileList + jj); - strcpy (*ppFileList + jj, *ppFileList + ii); - strcpy (*ppFileList + ii, szTmp); - - /* check if this was the current image that we moved */ - - if (*pFileIndex == i) - *pFileIndex = j; - else - if (*pFileIndex == j) - *pFileIndex = i; - } - } - } - - return TRUE; -} - -/*---------------- - * SearchPngList - *---------------- - */ - -BOOL SearchPngList ( - TCHAR *pFileList, int FileCount, int *pFileIndex, - PTSTR pstrPrevName, PTSTR pstrNextName) -{ - if (FileCount > 0) - { - /* get previous entry */ - - if (pstrPrevName != NULL) - { - if (*pFileIndex > 0) - *pFileIndex -= 1; - else - *pFileIndex = FileCount - 1; - - strcpy (pstrPrevName, pFileList + (*pFileIndex * MAX_PATH)); - } - - /* get next entry */ - - if (pstrNextName != NULL) - { - if (*pFileIndex < FileCount - 1) - *pFileIndex += 1; - else - *pFileIndex = 0; - - strcpy (pstrNextName, pFileList + (*pFileIndex * MAX_PATH)); - } - - return TRUE; - } - else - { - return FALSE; - } -} - -/*----------------- - * LoadImageFile - *----------------- - */ - -BOOL LoadImageFile (HWND hwnd, PTSTR pstrPathName, - png_byte **ppbImage, int *pxImgSize, int *pyImgSize, - int *piChannels, png_color *pBkgColor) -{ - static TCHAR szTmp [MAX_PATH]; - - /* if there's an existing PNG, free the memory */ - - if (*ppbImage) - { - free (*ppbImage); - *ppbImage = NULL; - } - - /* Load the entire PNG into memory */ - - SetCursor (LoadCursor (NULL, IDC_WAIT)); - ShowCursor (TRUE); - - PngLoadImage (pstrPathName, ppbImage, pxImgSize, pyImgSize, piChannels, - pBkgColor); - - ShowCursor (FALSE); - SetCursor (LoadCursor (NULL, IDC_ARROW)); - - if (*ppbImage != NULL) - { - sprintf (szTmp, "VisualPng - %s", strrchr(pstrPathName, '\\') + 1); - SetWindowText (hwnd, szTmp); - } - else - { - MessageBox (hwnd, TEXT ("Error in loading the PNG image"), - szProgName, MB_ICONEXCLAMATION | MB_OK); - return FALSE; - } - - return TRUE; -} - -/*---------------- - * DisplayImage - *---------------- - */ -BOOL DisplayImage (HWND hwnd, BYTE **ppDib, - BYTE **ppDiData, int cxWinSize, int cyWinSize, - BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels, - BOOL bStretched) -{ - BYTE *pDib = *ppDib; - BYTE *pDiData = *ppDiData; - /* BITMAPFILEHEADER *pbmfh; */ - BITMAPINFOHEADER *pbmih; - WORD wDIRowBytes; - png_color bkgBlack = {0, 0, 0}; - png_color bkgGray = {127, 127, 127}; - png_color bkgWhite = {255, 255, 255}; - - /* allocate memory for the Device Independant bitmap */ - - wDIRowBytes = (WORD) ((3 * cxWinSize + 3L) >> 2) << 2; - - if (pDib) - { - free (pDib); - pDib = NULL; - } - - if (!(pDib = (BYTE *) malloc (sizeof(BITMAPINFOHEADER) + - wDIRowBytes * cyWinSize))) - { - MessageBox (hwnd, TEXT ("Error in displaying the PNG image"), - szProgName, MB_ICONEXCLAMATION | MB_OK); - *ppDib = pDib = NULL; - return FALSE; - } - *ppDib = pDib; - memset (pDib, 0, sizeof(BITMAPINFOHEADER)); - - /* initialize the dib-structure */ - - pbmih = (BITMAPINFOHEADER *) pDib; - pbmih->biSize = sizeof(BITMAPINFOHEADER); - pbmih->biWidth = cxWinSize; - pbmih->biHeight = -((long) cyWinSize); - pbmih->biPlanes = 1; - pbmih->biBitCount = 24; - pbmih->biCompression = 0; - pDiData = pDib + sizeof(BITMAPINFOHEADER); - *ppDiData = pDiData; - - /* first fill bitmap with gray and image border */ - - InitBitmap (pDiData, cxWinSize, cyWinSize); - - /* then fill bitmap with image */ - - if (pbImage) - { - FillBitmap ( - pDiData, cxWinSize, cyWinSize, - pbImage, cxImgSize, cyImgSize, cImgChannels, - bStretched); - } - - return TRUE; -} - -/*-------------- - * InitBitmap - *-------------- - */ -BOOL InitBitmap (BYTE *pDiData, int cxWinSize, int cyWinSize) -{ - BYTE *dst; - int x, y, col; - - /* initialize the background with gray */ - - dst = pDiData; - for (y = 0; y < cyWinSize; y++) - { - col = 0; - for (x = 0; x < cxWinSize; x++) - { - /* fill with GRAY */ - *dst++ = 127; - *dst++ = 127; - *dst++ = 127; - col += 3; - } - /* rows start on 4 byte boundaries */ - while ((col % 4) != 0) - { - dst++; - col++; - } - } - - return TRUE; -} - -/*-------------- - * FillBitmap - *-------------- - */ -BOOL FillBitmap ( - BYTE *pDiData, int cxWinSize, int cyWinSize, - BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels, - BOOL bStretched) -{ - BYTE *pStretchedImage; - BYTE *pImg; - BYTE *src, *dst; - BYTE r, g, b, a; - const int cDIChannels = 3; - WORD wImgRowBytes; - WORD wDIRowBytes; - int cxNewSize, cyNewSize; - int cxImgPos, cyImgPos; - int xImg, yImg; - int xWin, yWin; - int xOld, yOld; - int xNew, yNew; - - if (bStretched) - { - cxNewSize = cxWinSize - 2 * MARGIN; - cyNewSize = cyWinSize - 2 * MARGIN; - - /* stretch the image to it's window determined size */ - - /* the following two are mathematically the same, but the first - * has side-effects because of rounding - */ -/* if ((cyNewSize / cxNewSize) > (cyImgSize / cxImgSize)) */ - if ((cyNewSize * cxImgSize) > (cyImgSize * cxNewSize)) - { - cyNewSize = cxNewSize * cyImgSize / cxImgSize; - cxImgPos = MARGIN; - cyImgPos = (cyWinSize - cyNewSize) / 2; - } - else - { - cxNewSize = cyNewSize * cxImgSize / cyImgSize; - cyImgPos = MARGIN; - cxImgPos = (cxWinSize - cxNewSize) / 2; - } - - pStretchedImage = malloc (cImgChannels * cxNewSize * cyNewSize); - pImg = pStretchedImage; - - for (yNew = 0; yNew < cyNewSize; yNew++) - { - yOld = yNew * cyImgSize / cyNewSize; - for (xNew = 0; xNew < cxNewSize; xNew++) - { - xOld = xNew * cxImgSize / cxNewSize; - - r = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld) + 0); - g = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld) + 1); - b = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld) + 2); - *pImg++ = r; - *pImg++ = g; - *pImg++ = b; - if (cImgChannels == 4) - { - a = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld) - + 3); - *pImg++ = a; - } - } - } - - /* calculate row-bytes */ - - wImgRowBytes = cImgChannels * cxNewSize; - wDIRowBytes = (WORD) ((cDIChannels * cxWinSize + 3L) >> 2) << 2; - - /* copy image to screen */ - - for (yImg = 0, yWin = cyImgPos; yImg < cyNewSize; yImg++, yWin++) - { - if (yWin >= cyWinSize - cyImgPos) - break; - src = pStretchedImage + yImg * wImgRowBytes; - dst = pDiData + yWin * wDIRowBytes + cxImgPos * cDIChannels; - - for (xImg = 0, xWin = cxImgPos; xImg < cxNewSize; xImg++, xWin++) - { - if (xWin >= cxWinSize - cxImgPos) - break; - r = *src++; - g = *src++; - b = *src++; - *dst++ = b; /* note the reverse order */ - *dst++ = g; - *dst++ = r; - if (cImgChannels == 4) - { - a = *src++; - } - } - } - - /* free memory */ - - if (pStretchedImage != NULL) - { - free (pStretchedImage); - pStretchedImage = NULL; - } - - } - - /* process the image not-stretched */ - - else - { - /* calculate the central position */ - - cxImgPos = (cxWinSize - cxImgSize) / 2; - cyImgPos = (cyWinSize - cyImgSize) / 2; - - /* check for image larger than window */ - - if (cxImgPos < MARGIN) - cxImgPos = MARGIN; - if (cyImgPos < MARGIN) - cyImgPos = MARGIN; - - /* calculate both row-bytes */ - - wImgRowBytes = cImgChannels * cxImgSize; - wDIRowBytes = (WORD) ((cDIChannels * cxWinSize + 3L) >> 2) << 2; - - /* copy image to screen */ - - for (yImg = 0, yWin = cyImgPos; yImg < cyImgSize; yImg++, yWin++) - { - if (yWin >= cyWinSize - MARGIN) - break; - src = pbImage + yImg * wImgRowBytes; - dst = pDiData + yWin * wDIRowBytes + cxImgPos * cDIChannels; - - for (xImg = 0, xWin = cxImgPos; xImg < cxImgSize; xImg++, xWin++) - { - if (xWin >= cxWinSize - MARGIN) - break; - r = *src++; - g = *src++; - b = *src++; - *dst++ = b; /* note the reverse order */ - *dst++ = g; - *dst++ = r; - if (cImgChannels == 4) - { - a = *src++; - } - } - } - } - - return TRUE; -} - -/*----------------- - * end of source - *----------------- - */ -- cgit v1.1