/* * GDI bitmap objects * * Copyright 1993 Alexandre Julliard */ #include #include #include "ts_xlib.h" #include "ts_xutil.h" #include "gdi.h" #include "callback.h" #include "dc.h" #include "bitmap.h" #include "heap.h" #include "debug.h" #ifdef PRELIMINARY_WING16_SUPPORT #include #include #include #endif /* GCs used for B&W and color bitmap operations */ GC BITMAP_monoGC = 0, BITMAP_colorGC = 0; /*********************************************************************** * XPutImage_wrapper * * Wrapper to call XPutImage with CALL_LARGE_STACK. */ struct XPutImage_descr { BITMAPOBJ *bmp; XImage *image; INT32 width; INT32 height; }; static int XPutImage_wrapper( const struct XPutImage_descr *descr ) { return XPutImage( display, descr->bmp->pixmap, BITMAP_GC(descr->bmp), descr->image, 0, 0, 0, 0, descr->width, descr->height ); } /*********************************************************************** * BITMAP_GetBitsPadding * * Return number of bytes to pad a scanline of 16-bit aligned Windows DDB data. */ INT32 BITMAP_GetBitsPadding( int bmWidth, int bpp ) { INT32 pad; switch (bpp) { case 1: if (!(bmWidth & 15)) pad = 0; else pad = ((16 - (bmWidth & 15)) + 7) / 8; break; case 8: pad = (2 - (bmWidth & 1)) & 1; break; case 24: pad = (bmWidth*3) & 1; break; case 32: case 16: case 15: pad = 0; /* we have 16bit alignment already */ break; case 4: if (!(bmWidth & 3)) pad = 0; else pad = ((4 - (bmWidth & 3)) + 1) / 2; break; default: WARN(bitmap,"Unknown depth %d, please report.\n", bpp ); return -1; } return pad; } /*********************************************************************** * BITMAP_GetBitsWidth * * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB data. */ INT32 BITMAP_GetBitsWidth( int bmWidth, int bpp ) { switch(bpp) { case 1: return 2 * ((bmWidth+15) >> 4); case 24: bmWidth *= 3; /* fall through */ case 8: return bmWidth + (bmWidth & 1); case 32: return bmWidth * 4; case 16: case 15: return bmWidth * 2; case 4: return 2 * ((bmWidth+3) >> 2); default: WARN(bitmap,"Unknown depth %d, please report.\n", bpp ); } return -1; } /*********************************************************************** * CreateBitmap16 (GDI.48) */ HBITMAP16 WINAPI CreateBitmap16( INT16 width, INT16 height, UINT16 planes, UINT16 bpp, LPCVOID bits ) { return CreateBitmap32( width, height, planes, bpp, bits ); } /****************************************************************************** * CreateBitmap32 [GDI32.25] Creates a bitmap with the specified info * * PARAMS * width [I] bitmap width * height [I] bitmap height * planes [I] Number of color planes * bpp [I] Number of bits to identify a color * bits [I] Pointer to array containing color data * * RETURNS * Success: Handle to bitmap * Failure: NULL */ HBITMAP32 WINAPI CreateBitmap32( INT32 width, INT32 height, UINT32 planes, UINT32 bpp, LPCVOID bits ) { BITMAPOBJ * bmpObjPtr; HBITMAP32 hbitmap; planes = (BYTE)planes; bpp = (BYTE)bpp; TRACE(gdi, "%dx%d, %d colors\n", width, height, 1 << (planes*bpp) ); /* Check parameters */ if (!height || !width || planes != 1) return 0; if ((bpp != 1) && (bpp != screenDepth)) return 0; if (height < 0) height = -height; if (width < 0) width = -width; /* Create the BITMAPOBJ */ hbitmap = GDI_AllocObject( sizeof(BITMAPOBJ), BITMAP_MAGIC ); if (!hbitmap) return 0; bmpObjPtr = (BITMAPOBJ *) GDI_HEAP_LOCK( hbitmap ); bmpObjPtr->size.cx = 0; bmpObjPtr->size.cy = 0; bmpObjPtr->bitmap.bmType = 0; bmpObjPtr->bitmap.bmWidth = (INT16)width; bmpObjPtr->bitmap.bmHeight = (INT16)height; bmpObjPtr->bitmap.bmPlanes = (BYTE)planes; bmpObjPtr->bitmap.bmBitsPixel = (BYTE)bpp; bmpObjPtr->bitmap.bmWidthBytes = (INT16)BITMAP_WIDTH_BYTES( width, bpp ); bmpObjPtr->bitmap.bmBits = NULL; bmpObjPtr->dibSection = NULL; bmpObjPtr->colorMap = NULL; bmpObjPtr->nColorMap = 0; bmpObjPtr->status = DIB_NoHandler; /* Create the pixmap */ bmpObjPtr->pixmap = TSXCreatePixmap(display, rootWindow, width, height, bpp); if (!bmpObjPtr->pixmap) { GDI_HEAP_FREE( hbitmap ); hbitmap = 0; } else if (bits) /* Set bitmap bits */ SetBitmapBits32( hbitmap, height * bmpObjPtr->bitmap.bmWidthBytes, bits ); GDI_HEAP_UNLOCK( hbitmap ); return hbitmap; } /*********************************************************************** * CreateCompatibleBitmap16 (GDI.51) */ HBITMAP16 WINAPI CreateCompatibleBitmap16(HDC16 hdc, INT16 width, INT16 height) { return CreateCompatibleBitmap32( hdc, width, height ); } /****************************************************************************** * CreateCompatibleBitmap32 [GDI32.30] Creates a bitmap compatible with the DC * * PARAMS * hdc [I] Handle to device context * width [I] Width of bitmap * height [I] Height of bitmap * * RETURNS * Success: Handle to bitmap * Failure: NULL */ HBITMAP32 WINAPI CreateCompatibleBitmap32( HDC32 hdc, INT32 width, INT32 height) { HBITMAP32 hbmpRet = 0; DC *dc; TRACE(gdi, "(%04x,%d,%d) = \n", hdc, width, height ); if (!(dc = DC_GetDCPtr( hdc ))) return 0; if ((width >0x1000) || (height > 0x1000)) { FIXME(gdi,"got bad width %d or height %d, please look for reason\n", width, height ); return 0; } hbmpRet = CreateBitmap32( width, height, 1, dc->w.bitsPerPixel, NULL ); TRACE(gdi,"\t\t%04x\n", hbmpRet); return hbmpRet; } /*********************************************************************** * CreateBitmapIndirect16 (GDI.49) */ HBITMAP16 WINAPI CreateBitmapIndirect16( const BITMAP16 * bmp ) { return CreateBitmap16( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes, bmp->bmBitsPixel, PTR_SEG_TO_LIN( bmp->bmBits ) ); } /****************************************************************************** * CreateBitmapIndirect32 [GDI32.26] Creates a bitmap with the specifies info * * RETURNS * Success: Handle to bitmap * Failure: NULL */ HBITMAP32 WINAPI CreateBitmapIndirect32( const BITMAP32 * bmp) /* [in] Pointer to the bitmap data */ { return CreateBitmap32( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes, bmp->bmBitsPixel, bmp->bmBits ); } /*********************************************************************** * BITMAP_GetXImage * * Get an X image for a bitmap. For use with CALL_LARGE_STACK. */ XImage *BITMAP_GetXImage( const BITMAPOBJ *bmp ) { return XGetImage( display, bmp->pixmap, 0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, AllPlanes, ZPixmap ); } /*********************************************************************** * GetBitmapBits16 (GDI.74) */ LONG WINAPI GetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPVOID buffer ) { return GetBitmapBits32( hbitmap, count, buffer ); } /*********************************************************************** * GetBitmapBits32 [GDI32.143] Copies bitmap bits of bitmap to buffer * * RETURNS * Success: Number of bytes copied * Failure: 0 */ LONG WINAPI GetBitmapBits32( HBITMAP32 hbitmap, /* [in] Handle to bitmap */ LONG count, /* [in] Number of bytes to copy */ LPVOID buffer) /* [out] Pointer to buffer to receive bits */ { BITMAPOBJ * bmp; LONG height, old_height; XImage * image; LPBYTE tbuf; int h,w,pad; /* KLUDGE! */ if (count < 0) { WARN(bitmap, "(%ld): Negative number of bytes passed???\n", count ); count = -count; } bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return 0; /* Only get entire lines */ height = count / bmp->bitmap.bmWidthBytes; if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight; TRACE(bitmap, "%dx%d %d colors %p fetched height: %ld\n", bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 1 << bmp->bitmap.bmBitsPixel, buffer, height ); pad = BITMAP_GetBitsPadding( bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel ); if (!height || (pad == -1)) { GDI_HEAP_UNLOCK( hbitmap ); return 0; } EnterCriticalSection( &X11DRV_CritSection ); /* Hack: change the bitmap height temporarily to avoid */ /* getting unnecessary bitmap rows. */ old_height = bmp->bitmap.bmHeight; bmp->bitmap.bmHeight = height; image = (XImage *)CALL_LARGE_STACK( BITMAP_GetXImage, bmp ); bmp->bitmap.bmHeight = old_height; /* copy XImage to 16 bit padded image buffer with real bitsperpixel */ tbuf = buffer; switch (bmp->bitmap.bmBitsPixel) { case 1: for (h=0;hbitmap.bmWidth;w++) { if ((w%8) == 0) *tbuf = 0; *tbuf |= XGetPixel(image,w,h)<<(7-(w&7)); if ((w&7) == 7) ++tbuf; } tbuf += pad; } break; case 4: for (h=0;hbitmap.bmWidth;w++) { if (!(w & 1)) *tbuf = XGetPixel( image, w, h) << 4; else *tbuf++ |= XGetPixel( image, w, h) & 0x0f; } tbuf += pad; } break; case 8: for (h=0;hbitmap.bmWidth;w++) *tbuf++ = XGetPixel(image,w,h); tbuf += pad; } break; case 15: case 16: for (h=0;hbitmap.bmWidth;w++) { long pixel = XGetPixel(image,w,h); *tbuf++ = pixel & 0xff; *tbuf++ = (pixel>>8) & 0xff; } } break; case 24: for (h=0;hbitmap.bmWidth;w++) { long pixel = XGetPixel(image,w,h); *tbuf++ = pixel & 0xff; *tbuf++ = (pixel>> 8) & 0xff; *tbuf++ = (pixel>>16) & 0xff; } tbuf += pad; } break; default: FIXME(bitmap, "Unhandled bits:%d\n", bmp->bitmap.bmBitsPixel); } XDestroyImage( image ); LeaveCriticalSection( &X11DRV_CritSection ); GDI_HEAP_UNLOCK( hbitmap ); return height * bmp->bitmap.bmWidthBytes; } /*********************************************************************** * SetBitmapBits16 (GDI.106) */ LONG WINAPI SetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPCVOID buffer ) { return SetBitmapBits32( hbitmap, count, buffer ); } /****************************************************************************** * SetBitmapBits32 [GDI32.303] Sets bits of color data for a bitmap * * RETURNS * Success: Number of bytes used in setting the bitmap bits * Failure: 0 */ LONG WINAPI SetBitmapBits32( HBITMAP32 hbitmap, /* [in] Handle to bitmap */ LONG count, /* [in] Number of bytes in bitmap array */ LPCVOID buffer) /* [in] Address of array with bitmap bits */ { struct XPutImage_descr descr; BITMAPOBJ * bmp; LONG height; XImage * image; LPBYTE sbuf,tmpbuffer; int w,h,pad,widthbytes; /* KLUDGE! */ if (count < 0) { WARN(bitmap, "(%ld): Negative number of bytes passed???\n", count ); count = -count; } bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return 0; TRACE(bitmap, "%dx%d %d colors %p\n", bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 1 << bmp->bitmap.bmBitsPixel, buffer ); /* Only set entire lines */ height = count / bmp->bitmap.bmWidthBytes; if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight; pad = BITMAP_GetBitsPadding( bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel ); if (!height || (pad == -1)) { GDI_HEAP_UNLOCK( hbitmap ); return 0; } sbuf = (LPBYTE)buffer; widthbytes = DIB_GetXImageWidthBytes(bmp->bitmap.bmWidth,bmp->bitmap.bmBitsPixel); tmpbuffer = (LPBYTE)xmalloc(widthbytes*height); EnterCriticalSection( &X11DRV_CritSection ); image = XCreateImage( display, DefaultVisualOfScreen(screen), bmp->bitmap.bmBitsPixel, ZPixmap, 0, tmpbuffer, bmp->bitmap.bmWidth,height,32,widthbytes ); /* copy 16 bit padded image buffer with real bitsperpixel to XImage */ sbuf = (LPBYTE)buffer; switch (bmp->bitmap.bmBitsPixel) { case 1: for (h=0;hbitmap.bmWidth;w++) { XPutPixel(image,w,h,(sbuf[0]>>(7-(w&7))) & 1); if ((w&7) == 7) sbuf++; } sbuf += pad; } break; case 4: for (h=0;hbitmap.bmWidth;w++) { if (!(w & 1)) XPutPixel( image, w, h, *sbuf >> 4 ); else XPutPixel( image, w, h, *sbuf++ & 0xf ); } sbuf += pad; } break; case 8: for (h=0;hbitmap.bmWidth;w++) XPutPixel(image,w,h,*sbuf++); sbuf += pad; } break; case 15: case 16: for (h=0;hbitmap.bmWidth;w++) { XPutPixel(image,w,h,sbuf[1]*256+sbuf[0]); sbuf+=2; } } break; case 24: for (h=0;hbitmap.bmWidth;w++) { XPutPixel(image,w,h,(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]); sbuf += 3; } sbuf += pad; } break; } descr.bmp = bmp; descr.image = image; descr.width = bmp->bitmap.bmWidth; descr.height = height; CALL_LARGE_STACK( XPutImage_wrapper, &descr ); XDestroyImage( image ); /* frees tmpbuffer too */ LeaveCriticalSection( &X11DRV_CritSection ); GDI_HEAP_UNLOCK( hbitmap ); return height * bmp->bitmap.bmWidthBytes; } /*********************************************************************** * LoadImage16 [USER.389] * */ HANDLE16 WINAPI LoadImage16( HINSTANCE16 hinst, LPCSTR name, UINT16 type, INT16 desiredx, INT16 desiredy, UINT16 loadflags) { if (HIWORD(name)) { TRACE(resource,"(0x%04x,%s,%d,%d,%d,0x%08x)\n", hinst,(char *)PTR_SEG_TO_LIN(name),type,desiredx,desiredy,loadflags); } else { TRACE(resource,"LoadImage16(0x%04x,%p,%d,%d,%d,0x%08x)\n", hinst,name,type,desiredx,desiredy,loadflags); } switch (type) { case IMAGE_BITMAP: return LoadBitmap16(hinst,(SEGPTR)name); case IMAGE_ICON: return LoadIcon16(hinst,(SEGPTR)name); case IMAGE_CURSOR: return LoadCursor16(hinst,(SEGPTR)name); } return 0; } /********************************************************************** * LoadImage32A (USER32.365) * * FIXME: implementation still lacks nearly all features, see LR_* * defines in windows.h */ HANDLE32 WINAPI LoadImage32A( HINSTANCE32 hinst, LPCSTR name, UINT32 type, INT32 desiredx, INT32 desiredy, UINT32 loadflags) { if (HIWORD(name)) { TRACE(resource,"(0x%04x,%s,%d,%d,%d,0x%08x)\n", hinst,name,type,desiredx,desiredy,loadflags ); } else { TRACE(resource,"(0x%04x,%p,%d,%d,%d,0x%08x)\n", hinst,name,type,desiredx,desiredy,loadflags ); } switch (type) { case IMAGE_BITMAP: return LoadBitmap32A(hinst,name); case IMAGE_ICON: return LoadIcon32A(hinst,name); case IMAGE_CURSOR: return LoadCursor32A(hinst,name); } return 0; } /********************************************************************** * LoadImage32W (USER32.366) * * FIXME: implementation still lacks nearly all features, see LR_* * defines in windows.h */ /****************************************************************************** * LoadImage32W [USER32.366] Loads an icon, cursor, or bitmap * * PARAMS * hinst [I] Handle of instance that contains image * name [I] Name of image * type [I] Type of image * desiredx [I] Desired width * desiredy [I] Desired height * loadflags [I] Load flags * * RETURNS * Success: Handle to newly loaded image * Failure: NULL * * BUGS * Implementation still lacks nearly all features, see LR_* * defines in windows.h */ HANDLE32 WINAPI LoadImage32W( HINSTANCE32 hinst, LPCWSTR name, UINT32 type, INT32 desiredx, INT32 desiredy, UINT32 loadflags ) { if (HIWORD(name)) { TRACE(resource,"(0x%04x,%p,%d,%d,%d,0x%08x)\n", hinst,name,type,desiredx,desiredy,loadflags ); } else { TRACE(resource,"(0x%04x,%p,%d,%d,%d,0x%08x)\n", hinst,name,type,desiredx,desiredy,loadflags ); } switch (type) { case IMAGE_BITMAP: return LoadBitmap32W(hinst,name); case IMAGE_ICON: return LoadIcon32W(hinst,name); case IMAGE_CURSOR: return LoadCursor32W(hinst,name); } return NULL; } /********************************************************************** * CopyBitmap32 (not an API) * * NOTES * If it is not an API, why is it declared with WINAPI? * */ HBITMAP32 WINAPI CopyBitmap32 (HBITMAP32 hnd) { HBITMAP32 res = 0; BITMAP32 bmp; if (GetObject32A (hnd, sizeof (bmp), &bmp)) { res = CreateBitmapIndirect32 (&bmp); SetBitmapBits32 (res, bmp.bmWidthBytes * bmp.bmHeight, bmp.bmBits); } return res; } /****************************************************************************** * CopyImage32 [USER32.61] Creates new image and copies attributes to it * * PARAMS * hnd [I] Handle to image to copy * type [I] Type of image to copy * desiredx [I] Desired width of new image * desiredy [I] Desired height of new image * flags [I] Copy flags * * RETURNS * Success: Handle to newly created image * Failure: NULL * * FIXME: implementation still lacks nearly all features, see LR_* * defines in windows.h */ HANDLE32 WINAPI CopyImage32( HANDLE32 hnd, UINT32 type, INT32 desiredx, INT32 desiredy, UINT32 flags ) { switch (type) { case IMAGE_BITMAP: return CopyBitmap32(hnd); case IMAGE_ICON: return CopyIcon32(hnd); case IMAGE_CURSOR: return CopyCursor32(hnd); } return 0; } /********************************************************************** * LoadBitmap16 (USER.175) * * NOTES * Can this call LoadBitmap32? */ HBITMAP16 WINAPI LoadBitmap16( HINSTANCE16 instance, SEGPTR name ) { HBITMAP32 hbitmap = 0; HDC32 hdc; HRSRC16 hRsrc; HGLOBAL16 handle; BITMAPINFO *info; if (HIWORD(name)) { char *str = (char *)PTR_SEG_TO_LIN( name ); TRACE(bitmap, "(%04x,'%s')\n", instance, str ); if (str[0] == '#') name = (SEGPTR)(DWORD)(WORD)atoi( str + 1 ); } else TRACE(bitmap, "(%04x,%04x)\n", instance, LOWORD(name) ); if (!instance) /* OEM bitmap */ { if (HIWORD((int)name)) return 0; return OBM_LoadBitmap( LOWORD((int)name) ); } if (!(hRsrc = FindResource16( instance, name, RT_BITMAP16 ))) return 0; if (!(handle = LoadResource16( instance, hRsrc ))) return 0; info = (BITMAPINFO *)LockResource16( handle ); if ((hdc = GetDC32(0)) != 0) { char *bits = (char *)info + DIB_BitmapInfoSize( info, DIB_RGB_COLORS ); hbitmap = CreateDIBitmap32( hdc, &info->bmiHeader, CBM_INIT, bits, info, DIB_RGB_COLORS ); ReleaseDC32( 0, hdc ); } FreeResource16( handle ); return hbitmap; } /****************************************************************************** * LoadBitmap32W [USER32.358] Loads bitmap from the executable file * * RETURNS * Success: Handle to specified bitmap * Failure: NULL */ HBITMAP32 WINAPI LoadBitmap32W( HINSTANCE32 instance, /* [in] Handle to application instance */ LPCWSTR name) /* [in] Address of bitmap resource name */ { HBITMAP32 hbitmap = 0; HDC32 hdc; HRSRC32 hRsrc; HGLOBAL32 handle; BITMAPINFO *info; if (!instance) /* OEM bitmap */ { if (HIWORD((int)name)) return 0; return OBM_LoadBitmap( LOWORD((int)name) ); } if (!(hRsrc = FindResource32W( instance, name, RT_BITMAP32W ))) return 0; if (!(handle = LoadResource32( instance, hRsrc ))) return 0; info = (BITMAPINFO *)LockResource32( handle ); if ((hdc = GetDC32(0)) != 0) { char *bits = (char *)info + DIB_BitmapInfoSize( info, DIB_RGB_COLORS ); hbitmap = CreateDIBitmap32( hdc, &info->bmiHeader, CBM_INIT, bits, info, DIB_RGB_COLORS ); ReleaseDC32( 0, hdc ); } return hbitmap; } /********************************************************************** * LoadBitmap32A (USER32.357) */ HBITMAP32 WINAPI LoadBitmap32A( HINSTANCE32 instance, LPCSTR name ) { HBITMAP32 res; if (!HIWORD(name)) res = LoadBitmap32W( instance, (LPWSTR)name ); else { LPWSTR uni = HEAP_strdupAtoW( GetProcessHeap(), 0, name ); res = LoadBitmap32W( instance, uni ); HeapFree( GetProcessHeap(), 0, uni ); } return res; } /*********************************************************************** * BITMAP_DeleteObject */ BOOL32 BITMAP_DeleteObject( HBITMAP16 hbitmap, BITMAPOBJ * bmp ) { #ifdef PRELIMINARY_WING16_SUPPORT if( bmp->bitmap.bmBits ) TSXShmDetach( display, (XShmSegmentInfo*)bmp->bitmap.bmBits ); #endif TSXFreePixmap( display, bmp->pixmap ); #ifdef PRELIMINARY_WING16_SUPPORT if( bmp->bitmap.bmBits ) { __ShmBitmapCtl* p = (__ShmBitmapCtl*)bmp->bitmap.bmBits; WORD sel = HIWORD(p->bits); unsigned long l, limit = GetSelectorLimit(sel); for( l = 0; l < limit; l += 0x10000, sel += __AHINCR ) FreeSelector(sel); shmctl(p->si.shmid, IPC_RMID, NULL); shmdt(p->si.shmaddr); /* already marked for destruction */ } #endif if (bmp->dibSection) { DIBSECTION *dib = bmp->dibSection; if (dib->dsBm.bmBits) if (dib->dshSection) UnmapViewOfFile(dib->dsBm.bmBits); else VirtualFree(dib->dsBm.bmBits, MEM_RELEASE, 0L); HeapFree(GetProcessHeap(), 0, dib); } if (bmp->colorMap) HeapFree(GetProcessHeap(), 0, bmp->colorMap); return GDI_FreeObject( hbitmap ); } /*********************************************************************** * BITMAP_GetObject16 */ INT16 BITMAP_GetObject16( BITMAPOBJ * bmp, INT16 count, LPVOID buffer ) { if (bmp->dibSection) { FIXME(bitmap, "not implemented for DIBs\n"); return 0; } else { if (count > sizeof(bmp->bitmap)) count = sizeof(bmp->bitmap); memcpy( buffer, &bmp->bitmap, count ); return count; } } /*********************************************************************** * BITMAP_GetObject32 */ INT32 BITMAP_GetObject32( BITMAPOBJ * bmp, INT32 count, LPVOID buffer ) { if (bmp->dibSection) { if (count < sizeof(DIBSECTION)) { if (count > sizeof(BITMAP32)) count = sizeof(BITMAP32); } else { if (count > sizeof(DIBSECTION)) count = sizeof(DIBSECTION); } memcpy( buffer, bmp->dibSection, count ); return count; } else { BITMAP32 bmp32; bmp32.bmType = bmp->bitmap.bmType; bmp32.bmWidth = bmp->bitmap.bmWidth; bmp32.bmHeight = bmp->bitmap.bmHeight; bmp32.bmWidthBytes = bmp->bitmap.bmWidthBytes; bmp32.bmPlanes = bmp->bitmap.bmPlanes; bmp32.bmBitsPixel = bmp->bitmap.bmBitsPixel; bmp32.bmBits = NULL; if (count > sizeof(bmp32)) count = sizeof(bmp32); memcpy( buffer, &bmp32, count ); return count; } } /*********************************************************************** * CreateDiscardableBitmap16 (GDI.156) */ HBITMAP16 WINAPI CreateDiscardableBitmap16( HDC16 hdc, INT16 width, INT16 height ) { return CreateCompatibleBitmap16( hdc, width, height ); } /****************************************************************************** * CreateDiscardableBitmap32 [GDI32.38] Creates a discardable bitmap * * RETURNS * Success: Handle to bitmap * Failure: NULL */ HBITMAP32 WINAPI CreateDiscardableBitmap32( HDC32 hdc, /* [in] Handle to device context */ INT32 width, /* [in] Bitmap width */ INT32 height) /* [in] Bitmap height */ { return CreateCompatibleBitmap32( hdc, width, height ); } /*********************************************************************** * GetBitmapDimensionEx16 (GDI.468) * * NOTES * Can this call GetBitmapDimensionEx32? */ BOOL16 WINAPI GetBitmapDimensionEx16( HBITMAP16 hbitmap, LPSIZE16 size ) { BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return FALSE; *size = bmp->size; GDI_HEAP_UNLOCK( hbitmap ); return TRUE; } /****************************************************************************** * GetBitmapDimensionEx32 [GDI32.144] Retrieves dimensions of a bitmap * * RETURNS * Success: TRUE * Failure: FALSE */ BOOL32 WINAPI GetBitmapDimensionEx32( HBITMAP32 hbitmap, /* [in] Handle to bitmap */ LPSIZE32 size) /* [out] Address of struct receiving dimensions */ { BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return FALSE; size->cx = (INT32)bmp->size.cx; size->cy = (INT32)bmp->size.cy; GDI_HEAP_UNLOCK( hbitmap ); return TRUE; } /*********************************************************************** * GetBitmapDimension (GDI.162) */ DWORD WINAPI GetBitmapDimension( HBITMAP16 hbitmap ) { SIZE16 size; if (!GetBitmapDimensionEx16( hbitmap, &size )) return 0; return MAKELONG( size.cx, size.cy ); } /*********************************************************************** * SetBitmapDimensionEx16 (GDI.478) */ BOOL16 WINAPI SetBitmapDimensionEx16( HBITMAP16 hbitmap, INT16 x, INT16 y, LPSIZE16 prevSize ) { BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return FALSE; if (prevSize) *prevSize = bmp->size; bmp->size.cx = x; bmp->size.cy = y; GDI_HEAP_UNLOCK( hbitmap ); return TRUE; } /****************************************************************************** * SetBitmapDimensionEx32 [GDI32.304] Assignes dimensions to a bitmap * * RETURNS * Success: TRUE * Failure: FALSE */ BOOL32 WINAPI SetBitmapDimensionEx32( HBITMAP32 hbitmap, /* [in] Handle to bitmap */ INT32 x, /* [in] Bitmap width */ INT32 y, /* [in] Bitmap height */ LPSIZE32 prevSize) /* [out] Address of structure for orig dims */ { BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return FALSE; if (prevSize) CONV_SIZE16TO32( &bmp->size, prevSize ); bmp->size.cx = (INT16)x; bmp->size.cy = (INT16)y; GDI_HEAP_UNLOCK( hbitmap ); return TRUE; } /*********************************************************************** * SetBitmapDimension (GDI.163) */ DWORD WINAPI SetBitmapDimension( HBITMAP16 hbitmap, INT16 x, INT16 y ) { SIZE16 size; if (!SetBitmapDimensionEx16( hbitmap, x, y, &size )) return 0; return MAKELONG( size.cx, size.cy ); }