diff options
Diffstat (limited to 'win')
| -rw-r--r-- | win/tkWinImage.c | 121 |
1 files changed, 65 insertions, 56 deletions
diff --git a/win/tkWinImage.c b/win/tkWinImage.c index 32b2ecb..7ba9329 100644 --- a/win/tkWinImage.c +++ b/win/tkWinImage.c @@ -8,7 +8,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkWinImage.c,v 1.5 2002/10/10 07:25:24 hobbs Exp $ + * RCS: @(#) $Id: tkWinImage.c,v 1.6 2002/10/10 21:01:18 hobbs Exp $ */ #include "tkWinInt.h" @@ -292,17 +292,14 @@ XGetImageZPixmap(display, d, x, y, width, height, plane_mask, format) { TkWinDrawable *twdPtr = (TkWinDrawable *)d; XImage *ret_image; - unsigned char *smallBitData, *smallBitBase, *bigBitData; HDC hdc, hdcMem; HBITMAP hbmp, hbmpPrev; BITMAPINFO *bmInfo = NULL; HPALETTE hPal, hPalPrev1, hPalPrev2; - unsigned int byte_width; - unsigned int h, w, n; - unsigned char plmr, plmg, plmb; - unsigned char *data; int size; + unsigned int n; unsigned int depth; + unsigned char *data; TkWinDCState state; BOOL ret; @@ -443,43 +440,54 @@ XGetImageZPixmap(display, d, x, y, width, height, plane_mask, format) goto cleanup; } - byte_width = ((width * 3 + 3) & ~3); - smallBitBase = ckalloc(byte_width * height); - if (!smallBitBase) { - ckfree((char *) ret_image->data); - ckfree((char *) ret_image); - ret_image = NULL; - goto cleanup; - } - smallBitData = smallBitBase; - - /* Get the BITMAP info into the Image. */ - if (GetDIBits(hdcMem, hbmp, 0, height, smallBitData, bmInfo, - DIB_RGB_COLORS) == 0) { - ckfree((char *) ret_image->data); - ckfree((char *) ret_image); - ret_image = NULL; - goto cleanup; - } - - plmr = (unsigned char) (plane_mask & 0xff0000) >> 16; - plmg = (unsigned char) (plane_mask & 0x00ff00) >> 8; - plmb = (unsigned char) (plane_mask & 0x0000ff); - - /* Copy the 24 Bit Pixmap to a 32-Bit one. */ - for (h = 0; h < height; h++) { - bigBitData = ret_image->data + h * ret_image->bytes_per_line; - smallBitData = smallBitBase + h * byte_width; + if (depth <= 24) { + unsigned char *smallBitData, *smallBitBase, *bigBitData; + unsigned int byte_width, h, w; + + byte_width = ((width * 3 + 3) & ~3); + smallBitBase = ckalloc(byte_width * height); + if (!smallBitBase) { + ckfree((char *) ret_image->data); + ckfree((char *) ret_image); + ret_image = NULL; + goto cleanup; + } + smallBitData = smallBitBase; + + /* Get the BITMAP info into the Image. */ + if (GetDIBits(hdcMem, hbmp, 0, height, smallBitData, bmInfo, + DIB_RGB_COLORS) == 0) { + ckfree((char *) ret_image->data); + ckfree((char *) ret_image); + ckfree((char *) smallBitBase); + ret_image = NULL; + goto cleanup; + } - for (w = 0; w < width; w++) { - *bigBitData++ = ((*smallBitData++)) /* & plmr */; - *bigBitData++ = ((*smallBitData++)) /* & plmg */; - *bigBitData++ = ((*smallBitData++)) /* & plmb */; - *bigBitData++ = 0; + /* Copy the 24 Bit Pixmap to a 32-Bit one. */ + for (h = 0; h < height; h++) { + bigBitData = ret_image->data + h * ret_image->bytes_per_line; + smallBitData = smallBitBase + h * byte_width; + + for (w = 0; w < width; w++) { + *bigBitData++ = ((*smallBitData++)); + *bigBitData++ = ((*smallBitData++)); + *bigBitData++ = ((*smallBitData++)); + *bigBitData++ = 0; + } + } + /* Free the Device contexts, and the Bitmap */ + ckfree((char *) smallBitBase); + } else { + /* Get the BITMAP info directly into the Image. */ + if (GetDIBits(hdcMem, hbmp, 0, height, ret_image->data, bmInfo, + DIB_RGB_COLORS) == 0) { + ckfree((char *) ret_image->data); + ckfree((char *) ret_image); + ret_image = NULL; + goto cleanup; } } - /* Free the Device contexts, and the Bitmap */ - ckfree((char *) smallBitBase); } cleanup: @@ -537,30 +545,22 @@ XGetImage(display, d, x, y, width, height, plane_mask, format) return NULL; } - if (format == ZPixmap) { + if (twdPtr->type != TWD_BITMAP) { /* - * This actually handles most TWD_WINDOW requests, but it varies - * from the one below in that it really does a screen capture of - * an area, but that is consistent with the Unix behavior -- hobbs + * This handles TWD_WINDOW or TWD_WINDC, always creating a 32bit + * image. If the window being copied isn't visible (unmapped or + * obscured), we quietly stop copying (no user error). + * The user will see black where the widget should be. + * This branch is likely followed in favor of XGetImageZPixmap as + * postscript printed widgets require RGB data. */ - imagePtr = XGetImageZPixmap(display, d, x, y, - width, height, plane_mask, format); - } else if (twdPtr->type != TWD_BITMAP) { - /* - * This handles TWD_WINDOW or TWD_WINDC. - * If the window being copied isn't visible (unmapped or obscured), - * we quietly stop copying (no user error). The user will see black - * where the widget should be. - * This branch is likely not followed in favor of XGetImageZPixmap. - */ - Tk_Window tkwin = (Tk_Window) TkWinGetWinPtr(d); TkWinDCState state; unsigned int xx, yy, size; COLORREF pixel; dc = TkWinGetDrawableDC(display, d, &state); - imagePtr = XCreateImage(display, NULL, Tk_Depth(tkwin), + imagePtr = XCreateImage(display, NULL, 32, format, 0, NULL, width, height, 32, 0); size = imagePtr->bytes_per_line * imagePtr->height; imagePtr->data = ckalloc(size); @@ -577,6 +577,15 @@ XGetImage(display, d, x, y, width, height, plane_mask, format) } TkWinReleaseDrawableDC(d, dc, &state); + } else if (format == ZPixmap) { + /* + * This actually handles most TWD_WINDOW requests, but it varies + * from the above in that it really does a screen capture of + * an area, which is consistent with the Unix behavior, but does + * not appear to handle all bit depths correctly. -- hobbs + */ + imagePtr = XGetImageZPixmap(display, d, x, y, + width, height, plane_mask, format); } else { char *errMsg = NULL; char infoBuf[sizeof(BITMAPINFO) + sizeof(RGBQUAD)]; |