Sweden-Number/objects/dib.c

426 lines
13 KiB
C

/*
* GDI device independent bitmaps
*
* Copyright 1993 Alexandre Julliard
*/
static char Copyright[] = "Copyright Alexandre Julliard, 1993";
#include <stdio.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "gdi.h"
#include "bitmap.h"
#include "icon.h"
extern WORD COLOR_ToPhysical( DC *dc, COLORREF color ); /* color.c */
/***********************************************************************
* DIB_BitmapInfoSize
*
* Return the size of the bitmap info structure.
*/
int DIB_BitmapInfoSize( BITMAPINFO * info, WORD coloruse )
{
int size = info->bmiHeader.biClrUsed;
if (!size && (info->bmiHeader.biBitCount != 24))
size = 1 << info->bmiHeader.biBitCount;
if (coloruse == DIB_RGB_COLORS)
size = info->bmiHeader.biSize + size * sizeof(RGBQUAD);
else
size = info->bmiHeader.biSize + size * sizeof(WORD);
return size;
}
/***********************************************************************
* DIB_DIBmpToImage
*
* Create an XImage pointing to the bitmap data.
*/
static XImage *DIB_DIBmpToImage( BITMAPINFOHEADER * bmp, void * bmpData )
{
extern void _XInitImageFuncPtrs( XImage* );
XImage * image;
int bytesPerLine = (bmp->biWidth * bmp->biBitCount + 31) / 32 * 4;
image = XCreateImage( display, DefaultVisualOfScreen( screen ),
bmp->biBitCount, ZPixmap, 0, bmpData,
bmp->biWidth, bmp->biHeight, 32, bytesPerLine );
if (!image) return 0;
image->byte_order = MSBFirst;
image->bitmap_bit_order = MSBFirst;
image->bitmap_unit = 16;
_XInitImageFuncPtrs(image);
return image;
}
/***********************************************************************
* DIB_SetImageBits_1
*
* SetDIBits for a 1-bit deep DIB.
*/
static void DIB_SetImageBits_1( WORD lines, BYTE *bits, WORD width,
WORD *colors, XImage *bmpImage )
{
WORD i, x;
BYTE pad, pix;
if (!(width & 31)) pad = 0;
else pad = ((32 - (width & 31)) + 7) / 8;
while (lines--)
{
for (i = width/8, x = 0; (i > 0); i--)
{
pix = *bits++;
XPutPixel( bmpImage, x++, lines, colors[pix >> 7] );
XPutPixel( bmpImage, x++, lines, colors[(pix >> 6) & 1] );
XPutPixel( bmpImage, x++, lines, colors[(pix >> 5) & 1] );
XPutPixel( bmpImage, x++, lines, colors[(pix >> 4) & 1] );
XPutPixel( bmpImage, x++, lines, colors[(pix >> 3) & 1] );
XPutPixel( bmpImage, x++, lines, colors[(pix >> 2) & 1] );
XPutPixel( bmpImage, x++, lines, colors[(pix >> 1) & 1] );
XPutPixel( bmpImage, x++, lines, colors[pix & 1] );
}
pix = *bits;
switch(width & 7)
{
case 7: XPutPixel( bmpImage, x++, lines, colors[pix >> 7] ); pix <<= 1;
case 6: XPutPixel( bmpImage, x++, lines, colors[pix >> 7] ); pix <<= 1;
case 5: XPutPixel( bmpImage, x++, lines, colors[pix >> 7] ); pix <<= 1;
case 4: XPutPixel( bmpImage, x++, lines, colors[pix >> 7] ); pix <<= 1;
case 3: XPutPixel( bmpImage, x++, lines, colors[pix >> 7] ); pix <<= 1;
case 2: XPutPixel( bmpImage, x++, lines, colors[pix >> 7] ); pix <<= 1;
case 1: XPutPixel( bmpImage, x++, lines, colors[pix >> 7] );
}
bits += pad;
}
}
/***********************************************************************
* DIB_SetImageBits_4
*
* SetDIBits for a 4-bit deep DIB.
*/
static void DIB_SetImageBits_4( WORD lines, BYTE *bits, WORD width,
WORD *colors, XImage *bmpImage )
{
WORD i, x;
BYTE pad;
if (!(width & 7)) pad = 0;
else pad = ((8 - (width & 7)) + 1) / 2;
while (lines--)
{
for (i = width/2, x = 0; i > 0; i--)
{
BYTE pix = *bits++;
XPutPixel( bmpImage, x++, lines, colors[pix >> 4] );
XPutPixel( bmpImage, x++, lines, colors[pix & 0x0f] );
}
if (width & 1) XPutPixel( bmpImage, x, lines, colors[*bits >> 4] );
bits += pad;
}
}
/***********************************************************************
* DIB_SetImageBits_8
*
* SetDIBits for an 8-bit deep DIB.
*/
static void DIB_SetImageBits_8( WORD lines, BYTE *bits, WORD width,
WORD *colors, XImage *bmpImage )
{
WORD x;
BYTE pad = (4 - (width & 3)) & 3;
while (lines--)
{
for (x = 0; x < width; x++)
XPutPixel( bmpImage, x, lines, colors[*bits++] );
bits += pad;
}
}
/***********************************************************************
* DIB_SetImageBits_24
*
* SetDIBits for a 24-bit deep DIB.
*/
static void DIB_SetImageBits_24( WORD lines, BYTE *bits, WORD width,
DC *dc, XImage *bmpImage )
{
WORD x;
BYTE pad = (4 - ((width*3) & 3)) & 3;
while (lines--)
{
for (x = 0; x < width; x++, bits += 3)
{
XPutPixel( bmpImage, x, lines,
COLOR_ToPhysical( dc, RGB(bits[0],bits[1],bits[2]) ));
}
bits += pad;
}
}
/***********************************************************************
* DIB_SetImageBits
*
* Transfer the bits to an X image.
* Helper function for SetDIBits() and SetDIBitsToDevice().
*/
static int DIB_SetImageBits( DC *dc, WORD lines, WORD depth, LPSTR bits,
BITMAPINFO *info, WORD coloruse,
Drawable drawable, GC gc, int xSrc, int ySrc,
int xDest, int yDest, int width, int height )
{
WORD *colorMapping;
XImage *bmpImage;
void *bmpData;
int i, colors, widthBytes;
/* Build the color mapping table */
if (info->bmiHeader.biBitCount == 24) colorMapping = NULL;
else
{
colors = info->bmiHeader.biClrUsed;
if (!colors) colors = 1 << info->bmiHeader.biBitCount;
if (!(colorMapping = (WORD *)malloc( colors * sizeof(WORD) )))
return 0;
if (coloruse == DIB_RGB_COLORS)
{
RGBQUAD * rgbPtr = info->bmiColors;
for (i = 0; i < colors; i++, rgbPtr++)
colorMapping[i] = COLOR_ToPhysical( dc, RGB(rgbPtr->rgbRed,
rgbPtr->rgbGreen,
rgbPtr->rgbBlue) );
}
else
{
WORD * index = (WORD *)info->bmiColors;
for (i = 0; i < colors; i++, index++)
colorMapping[i] = COLOR_ToPhysical( dc, PALETTEINDEX(*index) );
}
}
/* Transfer the pixels */
widthBytes = (info->bmiHeader.biWidth * depth + 31) / 32 * 4;
bmpData = malloc( lines * widthBytes );
bmpImage = XCreateImage( display, DefaultVisualOfScreen(screen),
depth, ZPixmap, 0, bmpData,
info->bmiHeader.biWidth, lines, 32, widthBytes );
switch(info->bmiHeader.biBitCount)
{
case 1:
DIB_SetImageBits_1( lines, bits, info->bmiHeader.biWidth,
colorMapping, bmpImage );
break;
case 4:
DIB_SetImageBits_4( lines, bits, info->bmiHeader.biWidth,
colorMapping, bmpImage );
break;
case 8:
DIB_SetImageBits_8( lines, bits, info->bmiHeader.biWidth,
colorMapping, bmpImage );
break;
case 24:
DIB_SetImageBits_24( lines, bits, info->bmiHeader.biWidth,
dc, bmpImage );
break;
}
if (colorMapping) free(colorMapping);
XPutImage( display, drawable, gc, bmpImage, xSrc, ySrc,
xDest, yDest, width, height );
XDestroyImage( bmpImage );
return lines;
}
/***********************************************************************
* SetDIBits (GDI.440)
*/
int SetDIBits( HDC hdc, HBITMAP hbitmap, WORD startscan, WORD lines,
LPSTR bits, BITMAPINFO * info, WORD coloruse )
{
DC * dc;
BITMAPOBJ * bmp;
/* Check parameters */
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
if (!(bmp = (BITMAPOBJ *)GDI_GetObjPtr( hbitmap, BITMAP_MAGIC )))
return 0;
if (!lines || (startscan >= (WORD)info->bmiHeader.biHeight)) return 0;
if (startscan+lines > info->bmiHeader.biHeight)
lines = info->bmiHeader.biHeight - startscan;
return DIB_SetImageBits( dc, lines, bmp->bitmap.bmBitsPixel,
bits, info, coloruse, bmp->pixmap, BITMAP_GC(bmp),
0, 0, 0, startscan, bmp->bitmap.bmWidth, lines );
}
/***********************************************************************
* SetDIBitsToDevice (GDI.443)
*/
int SetDIBitsToDevice( HDC hdc, short xDest, short yDest, WORD cx, WORD cy,
WORD xSrc, WORD ySrc, WORD startscan, WORD lines,
LPSTR bits, BITMAPINFO * info, WORD coloruse )
{
DC * dc;
/* Check parameters */
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
if (!lines || (startscan >= info->bmiHeader.biHeight)) return 0;
if (startscan+lines > info->bmiHeader.biHeight)
lines = info->bmiHeader.biHeight - startscan;
if (ySrc < startscan) ySrc = startscan;
else if (ySrc >= startscan+lines) return 0;
if (xSrc >= info->bmiHeader.biWidth) return 0;
if (ySrc+cy >= startscan+lines) cy = startscan + lines - ySrc;
if (xSrc+cx >= info->bmiHeader.biWidth) cx = info->bmiHeader.biWidth-xSrc;
if (!cx || !cy) return 0;
DC_SetupGCForText( dc ); /* To have the correct ROP */
return DIB_SetImageBits( dc, lines, dc->w.bitsPerPixel,
bits, info, coloruse,
dc->u.x.drawable, dc->u.x.gc,
xSrc, ySrc - startscan,
dc->w.DCOrgX + XLPTODP( dc, xDest ),
dc->w.DCOrgY + YLPTODP( dc, yDest ),
cx, cy );
}
/***********************************************************************
* GetDIBits (GDI.441)
*/
int GetDIBits( HDC hdc, HBITMAP hbitmap, WORD startscan, WORD lines,
LPSTR bits, BITMAPINFO * info, WORD coloruse )
{
DC * dc;
BITMAPOBJ * bmp;
PALETTEENTRY * palEntry;
PALETTEOBJ * palette;
XImage * bmpImage, * dibImage;
int i, x, y;
if (!lines) return 0;
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
if (!(bmp = (BITMAPOBJ *)GDI_GetObjPtr( hbitmap, BITMAP_MAGIC )))
return 0;
if (!(palette = (PALETTEOBJ*)GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC )))
return 0;
/* Transfer color info */
palEntry = palette->logpalette.palPalEntry;
for (i = 0; i < info->bmiHeader.biClrUsed; i++, palEntry++)
{
if (coloruse == DIB_RGB_COLORS)
{
info->bmiColors[i].rgbRed = palEntry->peRed;
info->bmiColors[i].rgbGreen = palEntry->peGreen;
info->bmiColors[i].rgbBlue = palEntry->peBlue;
info->bmiColors[i].rgbReserved = 0;
}
else ((WORD *)info->bmiColors)[i] = (WORD)i;
}
/* Transfer the pixels (very slow...) */
if (bits)
{
bmpImage = XGetImage( display, bmp->pixmap, 0, 0, bmp->bitmap.bmWidth,
bmp->bitmap.bmHeight, AllPlanes, ZPixmap );
dibImage = DIB_DIBmpToImage( &info->bmiHeader, bits );
for (y = 0; y < lines; y++)
{
for (x = 0; x < info->bmiHeader.biWidth; x++)
{
XPutPixel( dibImage, x, y,
XGetPixel(bmpImage, x, bmp->bitmap.bmHeight-startscan-y-1) );
}
}
dibImage->data = NULL;
XDestroyImage( dibImage );
XDestroyImage( bmpImage );
}
return lines;
}
/***********************************************************************
* CreateDIBitmap (GDI.442)
*/
HBITMAP CreateDIBitmap( HDC hdc, BITMAPINFOHEADER * header, DWORD init,
LPSTR bits, BITMAPINFO * data, WORD coloruse )
{
HBITMAP handle;
handle = CreateCompatibleBitmap( hdc, header->biWidth, header->biHeight );
if (!handle) return 0;
if (init == CBM_INIT) SetDIBits( hdc, handle, 0, header->biHeight,
bits, data, coloruse );
return handle;
}
/***********************************************************************
* DrawIcon (USER.84)
*/
BOOL DrawIcon(HDC hDC, short x, short y, HICON hIcon)
{
ICONALLOC *lpico;
BITMAP bm;
HBITMAP hBitTemp;
HDC hMemDC;
HDC hMemDC2;
#ifdef DEBUG_ICON
printf("DrawIcon(%04X, %d, %d, %04X) \n", hDC, x, y, hIcon);
#endif
if (hIcon == (HICON)NULL) return FALSE;
lpico = (ICONALLOC *)GlobalLock(hIcon);
GetObject(lpico->hBitmap, sizeof(BITMAP), (LPSTR)&bm);
#ifdef DEBUG_ICON
printf("DrawIcon / x=%d y=%d\n", x, y);
printf("DrawIcon / icon Width=%d\n", (int)lpico->descriptor.Width);
printf("DrawIcon / icon Height=%d\n", (int)lpico->descriptor.Height);
printf("DrawIcon / icon ColorCount=%d\n", (int)lpico->descriptor.ColorCount);
printf("DrawIcon / icon icoDIBSize=%lX\n", (DWORD)lpico->descriptor.icoDIBSize);
printf("DrawIcon / icon icoDIBOffset=%lX\n", (DWORD)lpico->descriptor.icoDIBOffset);
printf("DrawIcon / bitmap bmWidth=%d bmHeight=%d\n", bm.bmWidth, bm.bmHeight);
#endif
hMemDC = CreateCompatibleDC(hDC);
#ifdef DEBUG_ICON
SelectObject(hMemDC, lpico->hBitmap);
BitBlt(hDC, x, y, bm.bmWidth, bm.bmHeight, hMemDC, 0, 0, SRCCOPY);
SelectObject(hMemDC, lpico->hBitMask);
BitBlt(hDC, x, y + bm.bmHeight, bm.bmWidth, bm.bmHeight, hMemDC, 0, 0, SRCCOPY);
#else
SelectObject(hMemDC, lpico->hBitMask);
BitBlt(hDC, x, y, bm.bmWidth, bm.bmHeight, hMemDC, 0, 0, SRCAND);
SelectObject(hMemDC, lpico->hBitmap);
BitBlt(hDC, x, y, bm.bmWidth, bm.bmHeight, hMemDC, 0, 0, SRCPAINT);
#endif
DeleteDC(hMemDC);
return TRUE;
}