/* * GDI bitmap objects * * Copyright 1993 Alexandre Julliard * 1998 Huw D M Davies */ #include #include #include "wine/winbase16.h" #include "gdi.h" #include "dc.h" #include "bitmap.h" #include "heap.h" #include "global.h" #include "sysmetrics.h" #include "cursoricon.h" #include "debug.h" #include "monitor.h" #include "wine/winuser16.h" /*********************************************************************** * BITMAP_GetPadding * * Return number of bytes to pad a scanline of 16-bit aligned Windows DDB data. */ INT BITMAP_GetPadding( int bmWidth, int bpp ) { INT pad; switch (bpp) { case 1: pad = ((bmWidth-1) & 8) ? 0 : 1; 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_GetWidthBytes * * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB * data. */ INT BITMAP_GetWidthBytes( 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; } /*********************************************************************** * CreateUserBitmap16 (GDI.407) */ HBITMAP16 WINAPI CreateUserBitmap16( INT16 width, INT16 height, UINT16 planes, UINT16 bpp, LPCVOID bits ) { return CreateBitmap16( width, height, planes, bpp, bits ); } /*********************************************************************** * CreateUserDiscardableBitmap16 (GDI.409) */ HBITMAP16 WINAPI CreateUserDiscardableBitmap16( WORD dummy, INT16 width, INT16 height ) { return CreateUserBitmap16( width, height, 1, MONITOR_GetDepth(&MONITOR_PrimaryMonitor), NULL ); } /*********************************************************************** * CreateBitmap16 (GDI.48) */ HBITMAP16 WINAPI CreateBitmap16( INT16 width, INT16 height, UINT16 planes, UINT16 bpp, LPCVOID bits ) { return CreateBitmap( 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: 0 */ HBITMAP WINAPI CreateBitmap( INT width, INT height, UINT planes, UINT bpp, LPCVOID bits ) { BITMAPOBJ *bmp; HBITMAP hbitmap; planes = (BYTE)planes; bpp = (BYTE)bpp; /* Check parameters */ if (!height || !width) return 0; if (planes != 1) { FIXME(bitmap, "planes = %d\n", planes); 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; TRACE(bitmap, "%dx%d, %d colors returning %08x\n", width, height, 1 << (planes*bpp), hbitmap); bmp = (BITMAPOBJ *) GDI_HEAP_LOCK( hbitmap ); bmp->size.cx = 0; bmp->size.cy = 0; bmp->bitmap.bmType = 0; bmp->bitmap.bmWidth = width; bmp->bitmap.bmHeight = height; bmp->bitmap.bmPlanes = planes; bmp->bitmap.bmBitsPixel = bpp; bmp->bitmap.bmWidthBytes = BITMAP_GetWidthBytes( width, bpp ); bmp->bitmap.bmBits = NULL; bmp->DDBitmap = NULL; bmp->dib = NULL; if (bits) /* Set bitmap bits */ SetBitmapBits( hbitmap, height * bmp->bitmap.bmWidthBytes, bits ); GDI_HEAP_UNLOCK( hbitmap ); return hbitmap; } /*********************************************************************** * CreateCompatibleBitmap16 (GDI.51) */ HBITMAP16 WINAPI CreateCompatibleBitmap16(HDC16 hdc, INT16 width, INT16 height) { return CreateCompatibleBitmap( 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: 0 */ HBITMAP WINAPI CreateCompatibleBitmap( HDC hdc, INT width, INT height) { HBITMAP hbmpRet = 0; DC *dc; TRACE(bitmap, "(%04x,%d,%d) = \n", hdc, width, height ); if (!(dc = DC_GetDCPtr( hdc ))) return 0; if ((width >= 0x10000) || (height >= 0x10000)) { FIXME(bitmap,"got bad width %d or height %d, please look for reason\n", width, height ); } else { hbmpRet = CreateBitmap( width, height, 1, dc->w.bitsPerPixel, NULL ); if(dc->funcs->pCreateBitmap) dc->funcs->pCreateBitmap( hbmpRet ); } TRACE(bitmap,"\t\t%04x\n", hbmpRet); GDI_HEAP_UNLOCK(hdc); 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 */ HBITMAP WINAPI CreateBitmapIndirect( const BITMAP * bmp) /* [in] Pointer to the bitmap data */ { return CreateBitmap( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes, bmp->bmBitsPixel, bmp->bmBits ); } /*********************************************************************** * GetBitmapBits16 (GDI.74) */ LONG WINAPI GetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPVOID buffer ) { return GetBitmapBits( hbitmap, count, buffer ); } /*********************************************************************** * GetBitmapBits32 [GDI32.143] Copies bitmap bits of bitmap to buffer * * RETURNS * Success: Number of bytes copied * Failure: 0 */ LONG WINAPI GetBitmapBits( HBITMAP hbitmap, /* [in] Handle to bitmap */ LONG count, /* [in] Number of bytes to copy */ LPVOID bits) /* [out] Pointer to buffer to receive bits */ { BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); LONG height, ret; if (!bmp) return 0; if (count < 0) { WARN(bitmap, "(%ld): Negative number of bytes passed???\n", count ); count = -count; } /* Only get entire lines */ height = count / bmp->bitmap.bmWidthBytes; if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight; count = height * bmp->bitmap.bmWidthBytes; if (count == 0) { WARN(bitmap, "Less then one entire line requested\n"); GDI_HEAP_UNLOCK( hbitmap ); return 0; } TRACE(bitmap, "(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n", hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 1 << bmp->bitmap.bmBitsPixel, height ); if(bmp->DDBitmap) { TRACE(bitmap, "Calling device specific BitmapBits\n"); if(bmp->DDBitmap->funcs->pBitmapBits) ret = bmp->DDBitmap->funcs->pBitmapBits(hbitmap, bits, count, DDB_GET); else { ERR(bitmap, "BitmapBits == NULL??\n"); ret = 0; } } else { if(!bmp->bitmap.bmBits) { WARN(bitmap, "Bitmap is empty\n"); ret = 0; } else { memcpy(bits, bmp->bitmap.bmBits, count); ret = count; } } GDI_HEAP_UNLOCK( hbitmap ); return ret; } /*********************************************************************** * SetBitmapBits16 (GDI.106) */ LONG WINAPI SetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPCVOID buffer ) { return SetBitmapBits( 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 SetBitmapBits( HBITMAP hbitmap, /* [in] Handle to bitmap */ LONG count, /* [in] Number of bytes in bitmap array */ LPCVOID bits) /* [in] Address of array with bitmap bits */ { BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); LONG height, ret; if (!bmp) return 0; if (count < 0) { WARN(bitmap, "(%ld): Negative number of bytes passed???\n", count ); count = -count; } /* Only get entire lines */ height = count / bmp->bitmap.bmWidthBytes; if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight; count = height * bmp->bitmap.bmWidthBytes; TRACE(bitmap, "(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n", hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 1 << bmp->bitmap.bmBitsPixel, height ); if(bmp->DDBitmap) { TRACE(bitmap, "Calling device specific BitmapBits\n"); if(bmp->DDBitmap->funcs->pBitmapBits) ret = bmp->DDBitmap->funcs->pBitmapBits(hbitmap, (void *) bits, count, DDB_SET); else { ERR(bitmap, "BitmapBits == NULL??\n"); ret = 0; } } else { if(!bmp->bitmap.bmBits) /* Alloc enough for entire bitmap */ bmp->bitmap.bmBits = HeapAlloc( GetProcessHeap(), 0, count ); if(!bmp->bitmap.bmBits) { WARN(bitmap, "Unable to allocate bit buffer\n"); ret = 0; } else { memcpy(bmp->bitmap.bmBits, bits, count); ret = count; } } GDI_HEAP_UNLOCK( hbitmap ); return ret; } /*********************************************************************** * 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 lacks some features, see LR_ defines in windows.h */ HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type, INT desiredx, INT desiredy, UINT loadflags) { HANDLE res; LPWSTR u_name; if (HIWORD(name)) u_name = HEAP_strdupAtoW(GetProcessHeap(), 0, name); else u_name=(LPWSTR)name; res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags); if (HIWORD(name)) HeapFree(GetProcessHeap(), 0, u_name); return res; } /****************************************************************************** * 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 * * FIXME: Implementation lacks some features, see LR_ defines in windows.h */ HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type, INT desiredx, INT desiredy, UINT 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); } if (loadflags & LR_DEFAULTSIZE) { if (type == IMAGE_ICON) { if (!desiredx) desiredx = SYSMETRICS_CXICON; if (!desiredy) desiredy = SYSMETRICS_CYICON; } else if (type == IMAGE_CURSOR) { if (!desiredx) desiredx = SYSMETRICS_CXCURSOR; if (!desiredy) desiredy = SYSMETRICS_CYCURSOR; } } if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED; switch (type) { case IMAGE_BITMAP: return BITMAP_LoadBitmapW(hinst, name, loadflags); case IMAGE_ICON: { HDC hdc = GetDC(0); UINT palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL); ReleaseDC(0, hdc); return CURSORICON_Load(hinst, name, desiredx, desiredy, MIN(16, palEnts), FALSE, loadflags); } case IMAGE_CURSOR: return CURSORICON_Load(hinst, name, desiredx, desiredy, 1, TRUE, loadflags); } return 0; } /********************************************************************** * BITMAP_CopyBitmap * */ HBITMAP BITMAP_CopyBitmap(HBITMAP hbitmap) { BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); HBITMAP res = 0; BITMAP bm; if(!bmp) return 0; bm = bmp->bitmap; bm.bmBits = NULL; res = CreateBitmapIndirect(&bm); if(res) { char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes * bm.bmHeight ); GetBitmapBits (hbitmap, bm.bmWidthBytes * bm.bmHeight, buf); SetBitmapBits (res, bm.bmWidthBytes * bm.bmHeight, buf); HeapFree( GetProcessHeap(), 0, buf ); } GDI_HEAP_UNLOCK( hbitmap ); return res; } /****************************************************************************** * CopyImage16 [USER.390] Creates new image and copies attributes to it * */ HICON16 WINAPI CopyImage16( HANDLE16 hnd, UINT16 type, INT16 desiredx, INT16 desiredy, UINT16 flags ) { return (HICON16)CopyImage((HANDLE)hnd, (UINT)type, (INT)desiredx, (INT)desiredy, (UINT)flags); } /****************************************************************************** * 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 */ HICON WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx, INT desiredy, UINT flags ) { switch (type) { case IMAGE_BITMAP: return BITMAP_CopyBitmap(hnd); case IMAGE_ICON: return CopyIcon(hnd); case IMAGE_CURSOR: return CopyCursor(hnd); } return 0; } /********************************************************************** * LoadBitmap16 (USER.175) * * NOTES * Can this call LoadBitmap32? */ HBITMAP16 WINAPI LoadBitmap16( HINSTANCE16 instance, SEGPTR name ) { HBITMAP hbitmap = 0; HDC 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 */ { HDC hdc; DC *dc; if (HIWORD((int)name)) return 0; hdc = CreateDCA( "DISPLAY", NULL, NULL, NULL ); dc = DC_GetDCPtr( hdc ); if(dc->funcs->pLoadOEMResource) hbitmap = dc->funcs->pLoadOEMResource( LOWORD((int)name), OEM_BITMAP ); GDI_HEAP_UNLOCK( hdc ); DeleteDC( hdc ); return hbitmap; } if (!(hRsrc = FindResource16( instance, name, RT_BITMAP16 ))) return 0; if (!(handle = LoadResource16( instance, hRsrc ))) return 0; info = (BITMAPINFO *)LockResource16( handle ); if ((hdc = GetDC(0)) != 0) { char *bits = (char *)info + DIB_BitmapInfoSize( info, DIB_RGB_COLORS ); hbitmap = CreateDIBitmap( hdc, &info->bmiHeader, CBM_INIT, bits, info, DIB_RGB_COLORS ); ReleaseDC( 0, hdc ); } FreeResource16( handle ); return hbitmap; } /********************************************************************** * BITMAP_LoadBitmap32W */ HBITMAP BITMAP_LoadBitmapW(HINSTANCE instance,LPCWSTR name, UINT loadflags) { HBITMAP hbitmap = 0; HDC hdc; HRSRC hRsrc; HGLOBAL handle; char *ptr = NULL; BITMAPINFO *info, *fix_info=NULL; HGLOBAL hFix; int size; if (!(loadflags & LR_LOADFROMFILE)) { if (!instance) /* OEM bitmap */ { HDC hdc; DC *dc; if (HIWORD((int)name)) return 0; hdc = CreateDCA( "DISPLAY", NULL, NULL, NULL ); dc = DC_GetDCPtr( hdc ); if(dc->funcs->pLoadOEMResource) hbitmap = dc->funcs->pLoadOEMResource( LOWORD((int)name), OEM_BITMAP ); GDI_HEAP_UNLOCK( hdc ); DeleteDC( hdc ); return hbitmap; } if (!(hRsrc = FindResourceW( instance, name, RT_BITMAPW ))) return 0; if (!(handle = LoadResource( instance, hRsrc ))) return 0; if ((info = (BITMAPINFO *)LockResource( handle )) == NULL) return 0; } else { if (!(ptr = (char *)VIRTUAL_MapFileW( name ))) return 0; info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER)); } size = DIB_BitmapInfoSize(info, DIB_RGB_COLORS); if ((hFix = GlobalAlloc(0, size))) fix_info=GlobalLock(hFix); if (fix_info) { BYTE pix; memcpy(fix_info, info, size); pix = *((LPBYTE)info+DIB_BitmapInfoSize(info, DIB_RGB_COLORS)); DIB_FixColorsToLoadflags(fix_info, loadflags, pix); if ((hdc = GetDC(0)) != 0) { if (loadflags & LR_CREATEDIBSECTION) hbitmap = CreateDIBSection(hdc, fix_info, DIB_RGB_COLORS, NULL, 0, 0); else { char *bits = (char *)info + size;; hbitmap = CreateDIBitmap( hdc, &fix_info->bmiHeader, CBM_INIT, bits, fix_info, DIB_RGB_COLORS ); } ReleaseDC( 0, hdc ); } GlobalUnlock(hFix); GlobalFree(hFix); } if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr ); return hbitmap; } /****************************************************************************** * LoadBitmap32W [USER32.358] Loads bitmap from the executable file * * RETURNS * Success: Handle to specified bitmap * Failure: NULL */ HBITMAP WINAPI LoadBitmapW( HINSTANCE instance, /* [in] Handle to application instance */ LPCWSTR name) /* [in] Address of bitmap resource name */ { return BITMAP_LoadBitmapW(instance, name, 0); } /********************************************************************** * LoadBitmap32A (USER32.357) */ HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name ) { HBITMAP res; if (!HIWORD(name)) res = LoadBitmapW( instance, (LPWSTR)name ); else { LPWSTR uni = HEAP_strdupAtoW( GetProcessHeap(), 0, name ); res = LoadBitmapW( instance, uni ); HeapFree( GetProcessHeap(), 0, uni ); } return res; } /*********************************************************************** * BITMAP_DeleteObject */ BOOL BITMAP_DeleteObject( HBITMAP16 hbitmap, BITMAPOBJ * bmp ) { if( bmp->DDBitmap ) { if( bmp->DDBitmap->funcs->pDeleteObject ) bmp->DDBitmap->funcs->pDeleteObject( hbitmap ); } if( bmp->bitmap.bmBits ) HeapFree( GetProcessHeap(), 0, bmp->bitmap.bmBits ); DIB_DeleteDIBSection( bmp ); return GDI_FreeObject( hbitmap ); } /*********************************************************************** * BITMAP_GetObject16 */ INT16 BITMAP_GetObject16( BITMAPOBJ * bmp, INT16 count, LPVOID buffer ) { if (bmp->dib) { if ( count <= sizeof(BITMAP16) ) { BITMAP *bmp32 = &bmp->dib->dibSection.dsBm; BITMAP16 bmp16; bmp16.bmType = bmp32->bmType; bmp16.bmWidth = bmp32->bmWidth; bmp16.bmHeight = bmp32->bmHeight; bmp16.bmWidthBytes = bmp32->bmWidthBytes; bmp16.bmPlanes = bmp32->bmPlanes; bmp16.bmBitsPixel = bmp32->bmBitsPixel; bmp16.bmBits = (SEGPTR)0; memcpy( buffer, &bmp16, count ); return count; } else { FIXME(bitmap, "not implemented for DIBs: count %d\n", count); return 0; } } else { BITMAP16 bmp16; bmp16.bmType = bmp->bitmap.bmType; bmp16.bmWidth = bmp->bitmap.bmWidth; bmp16.bmHeight = bmp->bitmap.bmHeight; bmp16.bmWidthBytes = bmp->bitmap.bmWidthBytes; bmp16.bmPlanes = bmp->bitmap.bmPlanes; bmp16.bmBitsPixel = bmp->bitmap.bmBitsPixel; bmp16.bmBits = (SEGPTR)0; if (count > sizeof(bmp16)) count = sizeof(bmp16); memcpy( buffer, &bmp16, count ); return count; } } /*********************************************************************** * BITMAP_GetObject32 */ INT BITMAP_GetObject( BITMAPOBJ * bmp, INT count, LPVOID buffer ) { if (bmp->dib) { if (count < sizeof(DIBSECTION)) { if (count > sizeof(BITMAP)) count = sizeof(BITMAP); } else { if (count > sizeof(DIBSECTION)) count = sizeof(DIBSECTION); } memcpy( buffer, &bmp->dib->dibSection, count ); return count; } else { if (count > sizeof(BITMAP)) count = sizeof(BITMAP); memcpy( buffer, &bmp->bitmap, 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 */ HBITMAP WINAPI CreateDiscardableBitmap( HDC hdc, /* [in] Handle to device context */ INT width, /* [in] Bitmap width */ INT height) /* [in] Bitmap height */ { return CreateCompatibleBitmap( 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; CONV_SIZE32TO16( &bmp->size, size ); GDI_HEAP_UNLOCK( hbitmap ); return TRUE; } /****************************************************************************** * GetBitmapDimensionEx32 [GDI32.144] Retrieves dimensions of a bitmap * * RETURNS * Success: TRUE * Failure: FALSE */ BOOL WINAPI GetBitmapDimensionEx( HBITMAP hbitmap, /* [in] Handle to bitmap */ LPSIZE size) /* [out] Address of struct receiving dimensions */ { BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return FALSE; *size = bmp->size; GDI_HEAP_UNLOCK( hbitmap ); return TRUE; } /*********************************************************************** * GetBitmapDimension (GDI.162) */ DWORD WINAPI GetBitmapDimension16( 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) CONV_SIZE32TO16( &bmp->size, prevSize ); 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 */ BOOL WINAPI SetBitmapDimensionEx( HBITMAP hbitmap, /* [in] Handle to bitmap */ INT x, /* [in] Bitmap width */ INT y, /* [in] Bitmap height */ LPSIZE prevSize) /* [out] Address of structure for orig dims */ { 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; } /*********************************************************************** * SetBitmapDimension (GDI.163) */ DWORD WINAPI SetBitmapDimension16( HBITMAP16 hbitmap, INT16 x, INT16 y ) { SIZE16 size; if (!SetBitmapDimensionEx16( hbitmap, x, y, &size )) return 0; return MAKELONG( size.cx, size.cy ); }