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846 lines
23 KiB
C
846 lines
23 KiB
C
/*
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* GDI bitmap objects
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*
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* Copyright 1993 Alexandre Julliard
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* 1998 Huw D M Davies
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "wine/winbase16.h"
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#include "gdi.h"
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#include "dc.h"
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#include "bitmap.h"
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#include "heap.h"
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#include "global.h"
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#include "sysmetrics.h"
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#include "cursoricon.h"
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#include "debugtools.h"
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#include "monitor.h"
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#include "wine/winuser16.h"
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DECLARE_DEBUG_CHANNEL(bitmap)
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DECLARE_DEBUG_CHANNEL(resource)
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BITMAP_DRIVER *BITMAP_Driver = NULL;
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/***********************************************************************
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* BITMAP_GetWidthBytes
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*
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* Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
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* data.
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*/
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INT BITMAP_GetWidthBytes( INT bmWidth, INT bpp )
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{
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switch(bpp)
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{
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case 1:
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return 2 * ((bmWidth+15) >> 4);
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case 24:
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bmWidth *= 3; /* fall through */
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case 8:
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return bmWidth + (bmWidth & 1);
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case 32:
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return bmWidth * 4;
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case 16:
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case 15:
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return bmWidth * 2;
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case 4:
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return 2 * ((bmWidth+3) >> 2);
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default:
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WARN_(bitmap)("Unknown depth %d, please report.\n", bpp );
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}
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return -1;
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}
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/***********************************************************************
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* CreateUserBitmap16 (GDI.407)
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*/
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HBITMAP16 WINAPI CreateUserBitmap16( INT16 width, INT16 height, UINT16 planes,
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UINT16 bpp, LPCVOID bits )
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{
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return CreateBitmap16( width, height, planes, bpp, bits );
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}
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/***********************************************************************
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* CreateUserDiscardableBitmap16 (GDI.409)
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*/
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HBITMAP16 WINAPI CreateUserDiscardableBitmap16( WORD dummy,
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INT16 width, INT16 height )
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{
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return CreateUserBitmap16( width, height, 1, MONITOR_GetDepth(&MONITOR_PrimaryMonitor), NULL );
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}
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/***********************************************************************
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* CreateBitmap16 (GDI.48)
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*/
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HBITMAP16 WINAPI CreateBitmap16( INT16 width, INT16 height, UINT16 planes,
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UINT16 bpp, LPCVOID bits )
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{
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return CreateBitmap( width, height, planes, bpp, bits );
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}
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/******************************************************************************
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* CreateBitmap32 [GDI32.25] Creates a bitmap with the specified info
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*
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* PARAMS
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* width [I] bitmap width
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* height [I] bitmap height
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* planes [I] Number of color planes
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* bpp [I] Number of bits to identify a color
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* bits [I] Pointer to array containing color data
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*
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* RETURNS
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* Success: Handle to bitmap
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* Failure: 0
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*/
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HBITMAP WINAPI CreateBitmap( INT width, INT height, UINT planes,
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UINT bpp, LPCVOID bits )
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{
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BITMAPOBJ *bmp;
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HBITMAP hbitmap;
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planes = (BYTE)planes;
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bpp = (BYTE)bpp;
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/* Check parameters */
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if (!height || !width) return 0;
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if (planes != 1) {
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FIXME_(bitmap)("planes = %d\n", planes);
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return 0;
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}
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if (height < 0) height = -height;
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if (width < 0) width = -width;
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/* Create the BITMAPOBJ */
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hbitmap = GDI_AllocObject( sizeof(BITMAPOBJ), BITMAP_MAGIC );
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if (!hbitmap) return 0;
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TRACE_(bitmap)("%dx%d, %d colors returning %08x\n", width, height,
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1 << (planes*bpp), hbitmap);
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bmp = (BITMAPOBJ *) GDI_HEAP_LOCK( hbitmap );
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bmp->size.cx = 0;
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bmp->size.cy = 0;
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bmp->bitmap.bmType = 0;
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bmp->bitmap.bmWidth = width;
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bmp->bitmap.bmHeight = height;
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bmp->bitmap.bmPlanes = planes;
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bmp->bitmap.bmBitsPixel = bpp;
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bmp->bitmap.bmWidthBytes = BITMAP_GetWidthBytes( width, bpp );
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bmp->bitmap.bmBits = NULL;
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bmp->DDBitmap = NULL;
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bmp->dib = NULL;
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if (bits) /* Set bitmap bits */
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SetBitmapBits( hbitmap, height * bmp->bitmap.bmWidthBytes,
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bits );
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GDI_HEAP_UNLOCK( hbitmap );
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return hbitmap;
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}
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/***********************************************************************
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* CreateCompatibleBitmap16 (GDI.51)
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*/
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HBITMAP16 WINAPI CreateCompatibleBitmap16(HDC16 hdc, INT16 width, INT16 height)
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{
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return CreateCompatibleBitmap( hdc, width, height );
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}
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/******************************************************************************
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* CreateCompatibleBitmap32 [GDI32.30] Creates a bitmap compatible with the DC
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*
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* PARAMS
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* hdc [I] Handle to device context
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* width [I] Width of bitmap
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* height [I] Height of bitmap
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*
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* RETURNS
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* Success: Handle to bitmap
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* Failure: 0
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*/
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HBITMAP WINAPI CreateCompatibleBitmap( HDC hdc, INT width, INT height)
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{
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HBITMAP hbmpRet = 0;
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DC *dc;
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TRACE_(bitmap)("(%04x,%d,%d) = \n", hdc, width, height );
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if (!(dc = DC_GetDCPtr( hdc ))) return 0;
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if ((width >= 0x10000) || (height >= 0x10000)) {
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FIXME_(bitmap)("got bad width %d or height %d, please look for reason\n",
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width, height );
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} else {
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hbmpRet = CreateBitmap( width, height, 1, dc->w.bitsPerPixel, NULL );
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if(dc->funcs->pCreateBitmap)
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dc->funcs->pCreateBitmap( hbmpRet );
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}
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TRACE_(bitmap)("\t\t%04x\n", hbmpRet);
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GDI_HEAP_UNLOCK(hdc);
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return hbmpRet;
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}
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/***********************************************************************
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* CreateBitmapIndirect16 (GDI.49)
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*/
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HBITMAP16 WINAPI CreateBitmapIndirect16( const BITMAP16 * bmp )
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{
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return CreateBitmap16( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
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bmp->bmBitsPixel, PTR_SEG_TO_LIN( bmp->bmBits ) );
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}
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/******************************************************************************
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* CreateBitmapIndirect32 [GDI32.26] Creates a bitmap with the specifies info
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*
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* RETURNS
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* Success: Handle to bitmap
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* Failure: NULL
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*/
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HBITMAP WINAPI CreateBitmapIndirect(
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const BITMAP * bmp) /* [in] Pointer to the bitmap data */
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{
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return CreateBitmap( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
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bmp->bmBitsPixel, bmp->bmBits );
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}
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/***********************************************************************
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* GetBitmapBits16 (GDI.74)
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*/
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LONG WINAPI GetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPVOID buffer )
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{
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return GetBitmapBits( hbitmap, count, buffer );
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}
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/***********************************************************************
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* GetBitmapBits32 [GDI32.143] Copies bitmap bits of bitmap to buffer
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*
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* RETURNS
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* Success: Number of bytes copied
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* Failure: 0
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*/
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LONG WINAPI GetBitmapBits(
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HBITMAP hbitmap, /* [in] Handle to bitmap */
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LONG count, /* [in] Number of bytes to copy */
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LPVOID bits) /* [out] Pointer to buffer to receive bits */
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{
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BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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LONG height, ret;
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if (!bmp) return 0;
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if (count < 0) {
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WARN_(bitmap)("(%ld): Negative number of bytes passed???\n", count );
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count = -count;
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}
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/* Only get entire lines */
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height = count / bmp->bitmap.bmWidthBytes;
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if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
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count = height * bmp->bitmap.bmWidthBytes;
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if (count == 0)
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{
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WARN_(bitmap)("Less then one entire line requested\n");
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GDI_HEAP_UNLOCK( hbitmap );
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return 0;
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}
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TRACE_(bitmap)("(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
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hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
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1 << bmp->bitmap.bmBitsPixel, height );
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if(bmp->DDBitmap) {
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TRACE_(bitmap)("Calling device specific BitmapBits\n");
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if(bmp->DDBitmap->funcs->pBitmapBits)
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ret = bmp->DDBitmap->funcs->pBitmapBits(hbitmap, bits, count,
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DDB_GET);
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else {
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ERR_(bitmap)("BitmapBits == NULL??\n");
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ret = 0;
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}
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} else {
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if(!bmp->bitmap.bmBits) {
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WARN_(bitmap)("Bitmap is empty\n");
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ret = 0;
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} else {
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memcpy(bits, bmp->bitmap.bmBits, count);
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ret = count;
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}
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}
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GDI_HEAP_UNLOCK( hbitmap );
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return ret;
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}
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/***********************************************************************
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* SetBitmapBits16 (GDI.106)
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*/
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LONG WINAPI SetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPCVOID buffer )
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{
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return SetBitmapBits( hbitmap, count, buffer );
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}
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/******************************************************************************
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* SetBitmapBits32 [GDI32.303] Sets bits of color data for a bitmap
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*
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* RETURNS
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* Success: Number of bytes used in setting the bitmap bits
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* Failure: 0
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*/
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LONG WINAPI SetBitmapBits(
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HBITMAP hbitmap, /* [in] Handle to bitmap */
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LONG count, /* [in] Number of bytes in bitmap array */
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LPCVOID bits) /* [in] Address of array with bitmap bits */
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{
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BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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LONG height, ret;
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if (!bmp) return 0;
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if (count < 0) {
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WARN_(bitmap)("(%ld): Negative number of bytes passed???\n", count );
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count = -count;
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}
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/* Only get entire lines */
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height = count / bmp->bitmap.bmWidthBytes;
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if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
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count = height * bmp->bitmap.bmWidthBytes;
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TRACE_(bitmap)("(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
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hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
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1 << bmp->bitmap.bmBitsPixel, height );
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if(bmp->DDBitmap) {
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TRACE_(bitmap)("Calling device specific BitmapBits\n");
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if(bmp->DDBitmap->funcs->pBitmapBits)
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ret = bmp->DDBitmap->funcs->pBitmapBits(hbitmap, (void *) bits,
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count, DDB_SET);
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else {
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ERR_(bitmap)("BitmapBits == NULL??\n");
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ret = 0;
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}
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} else {
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if(!bmp->bitmap.bmBits) /* Alloc enough for entire bitmap */
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bmp->bitmap.bmBits = HeapAlloc( GetProcessHeap(), 0, count );
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if(!bmp->bitmap.bmBits) {
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WARN_(bitmap)("Unable to allocate bit buffer\n");
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ret = 0;
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} else {
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memcpy(bmp->bitmap.bmBits, bits, count);
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ret = count;
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}
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}
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GDI_HEAP_UNLOCK( hbitmap );
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return ret;
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}
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/***********************************************************************
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* LoadImage16 [USER.389]
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*
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*/
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HANDLE16 WINAPI LoadImage16( HINSTANCE16 hinst, LPCSTR name, UINT16 type,
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INT16 desiredx, INT16 desiredy, UINT16 loadflags)
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{
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LPCSTR nameStr = HIWORD(name)? PTR_SEG_TO_LIN(name) : (LPCSTR)name;
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return LoadImageA( hinst, nameStr, type,
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desiredx, desiredy, loadflags );
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}
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/**********************************************************************
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* LoadImageA (USER32.365)
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*
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* FIXME: implementation lacks some features, see LR_ defines in windows.h
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*/
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HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
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INT desiredx, INT desiredy, UINT loadflags)
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{
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HANDLE res;
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LPWSTR u_name;
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if (HIWORD(name)) u_name = HEAP_strdupAtoW(GetProcessHeap(), 0, name);
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else u_name=(LPWSTR)name;
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res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
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if (HIWORD(name)) HeapFree(GetProcessHeap(), 0, u_name);
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return res;
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}
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/******************************************************************************
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* LoadImageW [USER32.366] Loads an icon, cursor, or bitmap
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*
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* PARAMS
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* hinst [I] Handle of instance that contains image
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* name [I] Name of image
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* type [I] Type of image
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* desiredx [I] Desired width
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* desiredy [I] Desired height
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* loadflags [I] Load flags
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*
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* RETURNS
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* Success: Handle to newly loaded image
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* Failure: NULL
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*
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* FIXME: Implementation lacks some features, see LR_ defines in windows.h
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*/
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HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
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INT desiredx, INT desiredy, UINT loadflags )
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{
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if (HIWORD(name)) {
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TRACE_(resource)("(0x%04x,%p,%d,%d,%d,0x%08x)\n",
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hinst,name,type,desiredx,desiredy,loadflags);
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} else {
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TRACE_(resource)("(0x%04x,%p,%d,%d,%d,0x%08x)\n",
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hinst,name,type,desiredx,desiredy,loadflags);
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}
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if (loadflags & LR_DEFAULTSIZE) {
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if (type == IMAGE_ICON) {
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if (!desiredx) desiredx = SYSMETRICS_CXICON;
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if (!desiredy) desiredy = SYSMETRICS_CYICON;
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} else if (type == IMAGE_CURSOR) {
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if (!desiredx) desiredx = SYSMETRICS_CXCURSOR;
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if (!desiredy) desiredy = SYSMETRICS_CYCURSOR;
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}
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}
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if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
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switch (type) {
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case IMAGE_BITMAP:
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return BITMAP_Load( hinst, name, loadflags );
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case IMAGE_ICON:
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{
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HDC hdc = GetDC(0);
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UINT palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
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if (palEnts == 0)
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palEnts = 256;
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ReleaseDC(0, hdc);
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return CURSORICON_Load(hinst, name, desiredx, desiredy,
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palEnts, FALSE, loadflags);
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}
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case IMAGE_CURSOR:
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return CURSORICON_Load(hinst, name, desiredx, desiredy,
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1, TRUE, loadflags);
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}
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return 0;
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}
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/**********************************************************************
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* BITMAP_CopyBitmap
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*
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*/
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HBITMAP BITMAP_CopyBitmap(HBITMAP hbitmap)
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{
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BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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HBITMAP res = 0;
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BITMAP bm;
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if(!bmp) return 0;
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bm = bmp->bitmap;
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bm.bmBits = NULL;
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res = CreateBitmapIndirect(&bm);
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if(res) {
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char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes *
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bm.bmHeight );
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GetBitmapBits (hbitmap, bm.bmWidthBytes * bm.bmHeight, buf);
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SetBitmapBits (res, bm.bmWidthBytes * bm.bmHeight, buf);
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HeapFree( GetProcessHeap(), 0, buf );
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}
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GDI_HEAP_UNLOCK( hbitmap );
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return res;
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}
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/******************************************************************************
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* CopyImage16 [USER.390] Creates new image and copies attributes to it
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*
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*/
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HICON16 WINAPI CopyImage16( HANDLE16 hnd, UINT16 type, INT16 desiredx,
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INT16 desiredy, UINT16 flags )
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{
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return (HICON16)CopyImage((HANDLE)hnd, (UINT)type, (INT)desiredx,
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(INT)desiredy, (UINT)flags);
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}
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/******************************************************************************
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* CopyImage32 [USER32.61] Creates new image and copies attributes to it
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*
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* PARAMS
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* hnd [I] Handle to image to copy
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* type [I] Type of image to copy
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* desiredx [I] Desired width of new image
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* desiredy [I] Desired height of new image
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* flags [I] Copy flags
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*
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* RETURNS
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* Success: Handle to newly created image
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* Failure: NULL
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*
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* FIXME: implementation still lacks nearly all features, see LR_*
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* defines in windows.h
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*/
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HICON WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
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INT desiredy, UINT flags )
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{
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switch (type)
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{
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case IMAGE_BITMAP:
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return BITMAP_CopyBitmap(hnd);
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case IMAGE_ICON:
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return CopyIcon(hnd);
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case IMAGE_CURSOR:
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return CopyCursor(hnd);
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}
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return 0;
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}
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/**********************************************************************
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* BITMAP_Load
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*/
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HBITMAP BITMAP_Load( 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) {
|
|
char *bits = (char *)info + size;
|
|
if (loadflags & LR_CREATEDIBSECTION) {
|
|
DIBSECTION dib;
|
|
hbitmap = CreateDIBSection(hdc, fix_info, DIB_RGB_COLORS, NULL, 0, 0);
|
|
GetObjectA(hbitmap, sizeof(DIBSECTION), &dib);
|
|
SetDIBits(hdc, hbitmap, 0, dib.dsBm.bmHeight, bits, info,
|
|
DIB_RGB_COLORS);
|
|
}
|
|
else {
|
|
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;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* LoadBitmapW [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 LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* LoadBitmapA (USER32.357)
|
|
*/
|
|
HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
|
|
{
|
|
return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* LoadBitmap16 (USER.175)
|
|
*/
|
|
HBITMAP16 WINAPI LoadBitmap16( HINSTANCE16 instance, SEGPTR name )
|
|
{
|
|
LPCSTR nameStr = HIWORD(name)? PTR_SEG_TO_LIN(name) : (LPCSTR)name;
|
|
return LoadBitmapA( instance, nameStr );
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
* 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->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, 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 );
|
|
}
|
|
|