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reactos/win32ss/gdi/gdi32/wine/metafile.c
James Tabor fc16259faf [GDI32] Update Wine Metafile Code 
Sync/Port: Metafile code from wine.

Patches by Jacek Caban, Daniel Lehman, Zhiyi Zhang. Gabriel Ivancescu, Michael Stefaniuc, Francois Gouget, Nikolay Sivov Dmitry Timoshkov, Andrew EiKum, Piotr Caban and Alexandre Julliard.

This commit is dedicated to George Bisoc!
2021-09-27 16:18:20 -05:00

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/*
* Metafile functions
*
* Copyright David W. Metcalfe, 1994
* Copyright Niels de Carpentier, 1996
* Copyright Albrecht Kleine, 1996
* Copyright Huw Davies, 1996
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* NOTES
*
* These functions are primarily involved with metafile playback or anything
* that touches a HMETAFILE.
* For recording of metafiles look in graphics/metafiledrv/
*
* Note that (32 bit) HMETAFILEs are GDI objects, while HMETAFILE16s are
* global memory handles so these cannot be interchanged.
*
* Memory-based metafiles are just stored as a continuous block of memory with
* a METAHEADER at the head with METARECORDs appended to it. mtType is
* METAFILE_MEMORY (1). Note this is identical to the disk image of a
* disk-based metafile - even mtType is METAFILE_MEMORY.
* 16bit HMETAFILE16s are global handles to this block
* 32bit HMETAFILEs are GDI handles METAFILEOBJs, which contains a ptr to
* the memory.
* Disk-based metafiles are rather different. HMETAFILE16s point to a
* METAHEADER which has mtType equal to METAFILE_DISK (2). Following the 9
* WORDs of the METAHEADER there are a further 3 WORDs of 0, 1 of 0x117, 1
* more 0, then 2 which may be a time stamp of the file and then the path of
* the file (METAHEADERDISK). I've copied this for 16bit compatibility.
*
* HDMD - 14/4/1999
*/
#include "config.h"
#include <stdarg.h>
#include <string.h>
#include <fcntl.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winreg.h"
#include "winnls.h"
#ifdef __REACTOS__
#include "wine/winternl.h"
#else
#include "winternl.h"
#endif
#include "gdi_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(metafile);
#include "pshpack1.h"
typedef struct
{
DWORD dw1, dw2, dw3;
WORD w4;
CHAR filename[0x100];
} METAHEADERDISK;
#include "poppack.h"
/******************************************************************
* MF_AddHandle
*
* Add a handle to an external handle table and return the index
*/
static int MF_AddHandle(HANDLETABLE *ht, UINT htlen, HGDIOBJ hobj)
{
int i;
for (i = 0; i < htlen; i++)
{
if (*(ht->objectHandle + i) == 0)
{
*(ht->objectHandle + i) = hobj;
return i;
}
}
return -1;
}
/******************************************************************
* MF_Create_HMETATFILE
*
* Creates a (32 bit) HMETAFILE object from a METAHEADER
*
* HMETAFILEs are GDI objects.
*/
HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh)
{
return alloc_gdi_handle( mh, OBJ_METAFILE, NULL );
}
/******************************************************************
* convert_points
*
* Convert an array of POINTS to an array of POINT.
* Result must be freed by caller.
*/
static POINT *convert_points( UINT count, const POINTS *pts )
{
UINT i;
POINT *ret = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*ret) );
if (ret)
{
for (i = 0; i < count; i++)
{
ret[i].x = pts[i].x;
ret[i].y = pts[i].y;
}
}
return ret;
}
/******************************************************************
* DeleteMetaFile (GDI32.@)
*
* Delete a memory-based metafile.
*/
BOOL WINAPI DeleteMetaFile( HMETAFILE hmf )
{
METAHEADER *mh = free_gdi_handle( hmf );
if (!mh) return FALSE;
return HeapFree( GetProcessHeap(), 0, mh );
}
/******************************************************************
* MF_ReadMetaFile
*
* Returns a pointer to a memory based METAHEADER read in from file HFILE
*
*/
static METAHEADER *MF_ReadMetaFile(HANDLE hfile)
{
METAHEADER *mh;
DWORD BytesRead, size;
size = sizeof(METAHEADER);
mh = HeapAlloc( GetProcessHeap(), 0, size );
if(!mh) return NULL;
if(ReadFile( hfile, mh, size, &BytesRead, NULL) == 0 ||
BytesRead != size) {
HeapFree( GetProcessHeap(), 0, mh );
return NULL;
}
if (mh->mtType != METAFILE_MEMORY || mh->mtVersion != MFVERSION ||
mh->mtHeaderSize != size / 2)
{
HeapFree( GetProcessHeap(), 0, mh );
return NULL;
}
size = mh->mtSize * 2;
mh = HeapReAlloc( GetProcessHeap(), 0, mh, size );
if(!mh) return NULL;
size -= sizeof(METAHEADER);
if(ReadFile( hfile, (char *)mh + sizeof(METAHEADER), size, &BytesRead,
NULL) == 0 ||
BytesRead != size) {
HeapFree( GetProcessHeap(), 0, mh );
return NULL;
}
if (mh->mtType != METAFILE_MEMORY) {
WARN("Disk metafile had mtType = %04x\n", mh->mtType);
mh->mtType = METAFILE_MEMORY;
}
return mh;
}
/******************************************************************
* GetMetaFileA (GDI32.@)
*
* Read a metafile from a file. Returns handle to a memory-based metafile.
*/
HMETAFILE WINAPI GetMetaFileA( LPCSTR lpFilename )
{
METAHEADER *mh;
HANDLE hFile;
TRACE("%s\n", lpFilename);
if(!lpFilename)
return 0;
if((hFile = CreateFileA(lpFilename, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, 0)) == INVALID_HANDLE_VALUE)
return 0;
mh = MF_ReadMetaFile(hFile);
CloseHandle(hFile);
if(!mh) return 0;
return MF_Create_HMETAFILE( mh );
}
/******************************************************************
* GetMetaFileW (GDI32.@)
*/
HMETAFILE WINAPI GetMetaFileW( LPCWSTR lpFilename )
{
METAHEADER *mh;
HANDLE hFile;
TRACE("%s\n", debugstr_w(lpFilename));
if(!lpFilename)
return 0;
if((hFile = CreateFileW(lpFilename, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, 0)) == INVALID_HANDLE_VALUE)
return 0;
mh = MF_ReadMetaFile(hFile);
CloseHandle(hFile);
if(!mh) return 0;
return MF_Create_HMETAFILE( mh );
}
/******************************************************************
* MF_LoadDiskBasedMetaFile
*
* Creates a new memory-based metafile from a disk-based one.
*/
static METAHEADER *MF_LoadDiskBasedMetaFile(METAHEADER *mh)
{
METAHEADERDISK *mhd;
HANDLE hfile;
METAHEADER *mh2;
if(mh->mtType != METAFILE_DISK) {
ERR("Not a disk based metafile\n");
return NULL;
}
mhd = (METAHEADERDISK *)((char *)mh + sizeof(METAHEADER));
if((hfile = CreateFileA(mhd->filename, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, 0)) == INVALID_HANDLE_VALUE) {
WARN("Can't open file of disk based metafile\n");
return NULL;
}
mh2 = MF_ReadMetaFile(hfile);
CloseHandle(hfile);
return mh2;
}
/******************************************************************
* MF_CreateMetaHeaderDisk
*
* Take a memory based METAHEADER and change it to a disk based METAHEADER
* associated with filename. Note: Trashes contents of old one.
*/
METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mh, LPCVOID filename, BOOL uni )
{
METAHEADERDISK *mhd;
mh = HeapReAlloc( GetProcessHeap(), 0, mh,
sizeof(METAHEADER) + sizeof(METAHEADERDISK));
mh->mtType = METAFILE_DISK;
mhd = (METAHEADERDISK *)((char *)mh + sizeof(METAHEADER));
if( uni )
WideCharToMultiByte(CP_ACP, 0, filename, -1,
mhd->filename, sizeof mhd->filename, NULL, NULL);
else
lstrcpynA( mhd->filename, filename, sizeof mhd->filename );
return mh;
}
/* return a copy of the metafile bits, to be freed with HeapFree */
static METAHEADER *get_metafile_bits( HMETAFILE hmf )
{
METAHEADER *ret, *mh = GDI_GetObjPtr( hmf, OBJ_METAFILE );
if (!mh) return NULL;
if (mh->mtType != METAFILE_DISK)
{
ret = HeapAlloc( GetProcessHeap(), 0, mh->mtSize * 2 );
if (ret) memcpy( ret, mh, mh->mtSize * 2 );
}
else ret = MF_LoadDiskBasedMetaFile( mh );
GDI_ReleaseObj( hmf );
return ret;
}
/******************************************************************
* CopyMetaFileW (GDI32.@)
*
* Copies the metafile corresponding to hSrcMetaFile to either
* a disk file, if a filename is given, or to a new memory based
* metafile, if lpFileName is NULL.
*
* PARAMS
* hSrcMetaFile [I] handle of metafile to copy
* lpFilename [I] filename if copying to a file
*
* RETURNS
* Handle to metafile copy on success, NULL on failure.
*
* BUGS
* Copying to disk returns NULL even if successful.
*/
HMETAFILE WINAPI CopyMetaFileW( HMETAFILE hSrcMetaFile, LPCWSTR lpFilename )
{
METAHEADER *mh = get_metafile_bits( hSrcMetaFile );
HANDLE hFile;
TRACE("(%p,%s)\n", hSrcMetaFile, debugstr_w(lpFilename));
if(!mh) return 0;
if(lpFilename) { /* disk based metafile */
DWORD w;
if((hFile = CreateFileW(lpFilename, GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
HeapFree( GetProcessHeap(), 0, mh );
return 0;
}
WriteFile(hFile, mh, mh->mtSize * 2, &w, NULL);
CloseHandle(hFile);
}
return MF_Create_HMETAFILE( mh );
}
/******************************************************************
* CopyMetaFileA (GDI32.@)
*
* See CopyMetaFileW.
*/
HMETAFILE WINAPI CopyMetaFileA( HMETAFILE hSrcMetaFile, LPCSTR lpFilename )
{
UNICODE_STRING lpFilenameW;
HMETAFILE ret = 0;
if (lpFilename) RtlCreateUnicodeStringFromAsciiz(&lpFilenameW, lpFilename);
else lpFilenameW.Buffer = NULL;
ret = CopyMetaFileW( hSrcMetaFile, lpFilenameW.Buffer );
if (lpFilenameW.Buffer)
RtlFreeUnicodeString(&lpFilenameW);
return ret;
}
/******************************************************************
* PlayMetaFile (GDI32.@)
*
* Renders the metafile specified by hmf in the DC specified by
* hdc. Returns FALSE on failure, TRUE on success.
*
* PARAMS
* hdc [I] handle of DC to render in
* hmf [I] handle of metafile to render
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI PlayMetaFile( HDC hdc, HMETAFILE hmf )
{
METAHEADER *mh = get_metafile_bits( hmf );
METARECORD *mr;
HANDLETABLE *ht;
unsigned int offset = 0;
WORD i;
HPEN hPen;
HBRUSH hBrush;
HPALETTE hPal;
HRGN hRgn;
if (!mh) return FALSE;
/* save DC */
hPen = GetCurrentObject(hdc, OBJ_PEN);
hBrush = GetCurrentObject(hdc, OBJ_BRUSH);
hPal = GetCurrentObject(hdc, OBJ_PAL);
hRgn = CreateRectRgn(0, 0, 0, 0);
if (!GetClipRgn(hdc, hRgn))
{
DeleteObject(hRgn);
hRgn = 0;
}
/* create the handle table */
ht = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(HANDLETABLE) * mh->mtNoObjects);
if(!ht)
{
HeapFree( GetProcessHeap(), 0, mh );
return FALSE;
}
/* loop through metafile playing records */
offset = mh->mtHeaderSize * 2;
while (offset < mh->mtSize * 2)
{
mr = (METARECORD *)((char *)mh + offset);
TRACE("offset=%04x,size=%08x\n",
offset, mr->rdSize);
if (mr->rdSize < 3) { /* catch illegal record sizes */
TRACE("Entry got size %d at offset %d, total mf length is %d\n",
mr->rdSize,offset,mh->mtSize*2);
break;
}
offset += mr->rdSize * 2;
if (mr->rdFunction == META_EOF) {
TRACE("Got META_EOF so stopping\n");
break;
}
PlayMetaFileRecord( hdc, ht, mr, mh->mtNoObjects );
}
/* restore DC */
SelectObject(hdc, hPen);
SelectObject(hdc, hBrush);
SelectPalette(hdc, hPal, FALSE);
ExtSelectClipRgn(hdc, hRgn, RGN_COPY);
DeleteObject(hRgn);
/* free objects in handle table */
for(i = 0; i < mh->mtNoObjects; i++)
if(*(ht->objectHandle + i) != 0)
DeleteObject(*(ht->objectHandle + i));
HeapFree( GetProcessHeap(), 0, ht );
HeapFree( GetProcessHeap(), 0, mh );
return TRUE;
}
/******************************************************************
* EnumMetaFile (GDI32.@)
*
* Loop through the metafile records in hmf, calling the user-specified
* function for each one, stopping when the user's function returns FALSE
* (which is considered to be failure)
* or when no records are left (which is considered to be success).
*
* RETURNS
* TRUE on success, FALSE on failure.
*/
BOOL WINAPI EnumMetaFile(HDC hdc, HMETAFILE hmf, MFENUMPROC lpEnumFunc, LPARAM lpData)
{
METAHEADER *mh = get_metafile_bits( hmf );
METARECORD *mr;
HANDLETABLE *ht;
BOOL result = TRUE;
int i;
unsigned int offset = 0;
HPEN hPen;
HBRUSH hBrush;
HFONT hFont;
TRACE("(%p,%p,%p,%lx)\n", hdc, hmf, lpEnumFunc, lpData);
if (!mh) return FALSE;
/* save the current pen, brush and font */
hPen = GetCurrentObject(hdc, OBJ_PEN);
hBrush = GetCurrentObject(hdc, OBJ_BRUSH);
hFont = GetCurrentObject(hdc, OBJ_FONT);
ht = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(HANDLETABLE) * mh->mtNoObjects);
/* loop through metafile records */
offset = mh->mtHeaderSize * 2;
while (offset < (mh->mtSize * 2))
{
mr = (METARECORD *)((char *)mh + offset);
if(mr->rdFunction == META_EOF) {
TRACE("Got META_EOF so stopping\n");
break;
}
TRACE("Calling EnumFunc with record type %x\n",
mr->rdFunction);
if (!lpEnumFunc( hdc, ht, mr, mh->mtNoObjects, lpData ))
{
result = FALSE;
break;
}
offset += (mr->rdSize * 2);
}
/* restore pen, brush and font */
SelectObject(hdc, hBrush);
SelectObject(hdc, hPen);
SelectObject(hdc, hFont);
/* free objects in handle table */
for(i = 0; i < mh->mtNoObjects; i++)
if(*(ht->objectHandle + i) != 0)
DeleteObject(*(ht->objectHandle + i));
HeapFree( GetProcessHeap(), 0, ht);
HeapFree( GetProcessHeap(), 0, mh);
return result;
}
static BOOL MF_Play_MetaCreateRegion( METARECORD *mr, HRGN hrgn );
static BOOL MF_Play_MetaExtTextOut(HDC hdc, METARECORD *mr);
/******************************************************************
* PlayMetaFileRecord (GDI32.@)
*
* Render a single metafile record specified by *mr in the DC hdc, while
* using the handle table *ht, of length handles,
* to store metafile objects.
*
* BUGS
* The following metafile records are unimplemented:
*
* DRAWTEXT, ANIMATEPALETTE, SETPALENTRIES,
* RESIZEPALETTE, EXTFLOODFILL, RESETDC, STARTDOC, STARTPAGE, ENDPAGE,
* ABORTDOC, ENDDOC, CREATEBRUSH, CREATEBITMAPINDIRECT, and CREATEBITMAP.
*/
BOOL WINAPI PlayMetaFileRecord( HDC hdc, HANDLETABLE *ht, METARECORD *mr, UINT handles )
{
short s1;
POINT *pt;
BITMAPINFOHEADER *infohdr;
TRACE("(%p %p %p %u) function %04x\n", hdc, ht, mr, handles, mr->rdFunction);
switch (mr->rdFunction)
{
case META_EOF:
break;
case META_DELETEOBJECT:
DeleteObject(*(ht->objectHandle + mr->rdParm[0]));
*(ht->objectHandle + mr->rdParm[0]) = 0;
break;
case META_SETBKCOLOR:
SetBkColor(hdc, MAKELONG(mr->rdParm[0], mr->rdParm[1]));
break;
case META_SETBKMODE:
SetBkMode(hdc, mr->rdParm[0]);
break;
case META_SETMAPMODE:
SetMapMode(hdc, mr->rdParm[0]);
break;
case META_SETROP2:
SetROP2(hdc, mr->rdParm[0]);
break;
case META_SETRELABS:
SetRelAbs(hdc, mr->rdParm[0]);
break;
case META_SETPOLYFILLMODE:
SetPolyFillMode(hdc, mr->rdParm[0]);
break;
case META_SETSTRETCHBLTMODE:
SetStretchBltMode(hdc, mr->rdParm[0]);
break;
case META_SETTEXTCOLOR:
SetTextColor(hdc, MAKELONG(mr->rdParm[0], mr->rdParm[1]));
break;
case META_SETWINDOWORG:
SetWindowOrgEx(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_SETWINDOWEXT:
SetWindowExtEx(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_SETVIEWPORTORG:
SetViewportOrgEx(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_SETVIEWPORTEXT:
SetViewportExtEx(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_OFFSETWINDOWORG:
OffsetWindowOrgEx(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_SCALEWINDOWEXT:
ScaleWindowExtEx(hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_OFFSETVIEWPORTORG:
OffsetViewportOrgEx(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_SCALEVIEWPORTEXT:
ScaleViewportExtEx(hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_LINETO:
LineTo(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_MOVETO:
MoveToEx(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0], NULL);
break;
case META_EXCLUDECLIPRECT:
ExcludeClipRect( hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0] );
break;
case META_INTERSECTCLIPRECT:
IntersectClipRect( hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0] );
break;
case META_ARC:
Arc(hdc, (SHORT)mr->rdParm[7], (SHORT)mr->rdParm[6],
(SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4],
(SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_ELLIPSE:
Ellipse(hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_FLOODFILL:
FloodFill(hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
MAKELONG(mr->rdParm[0], mr->rdParm[1]));
break;
case META_PIE:
Pie(hdc, (SHORT)mr->rdParm[7], (SHORT)mr->rdParm[6],
(SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4],
(SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_RECTANGLE:
Rectangle(hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_ROUNDRECT:
RoundRect(hdc, (SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4],
(SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_PATBLT:
PatBlt(hdc, (SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4],
(SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
MAKELONG(mr->rdParm[0], mr->rdParm[1]));
break;
case META_SAVEDC:
SaveDC(hdc);
break;
case META_SETPIXEL:
SetPixel(hdc, (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
MAKELONG(mr->rdParm[0], mr->rdParm[1]));
break;
case META_OFFSETCLIPRGN:
OffsetClipRgn( hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0] );
break;
case META_TEXTOUT:
s1 = mr->rdParm[0];
TextOutA(hdc, (SHORT)mr->rdParm[((s1 + 1) >> 1) + 2],
(SHORT)mr->rdParm[((s1 + 1) >> 1) + 1],
(char *)(mr->rdParm + 1), s1);
break;
case META_POLYGON:
if ((pt = convert_points( mr->rdParm[0], (POINTS *)(mr->rdParm + 1))))
{
Polygon(hdc, pt, mr->rdParm[0]);
HeapFree( GetProcessHeap(), 0, pt );
}
break;
case META_POLYPOLYGON:
{
UINT i, total;
SHORT *counts = (SHORT *)(mr->rdParm + 1);
for (i = total = 0; i < mr->rdParm[0]; i++) total += counts[i];
pt = convert_points( total, (POINTS *)(counts + mr->rdParm[0]) );
if (pt)
{
INT *cnt32 = HeapAlloc( GetProcessHeap(), 0, mr->rdParm[0] * sizeof(*cnt32) );
if (cnt32)
{
for (i = 0; i < mr->rdParm[0]; i++) cnt32[i] = counts[i];
PolyPolygon( hdc, pt, cnt32, mr->rdParm[0]);
HeapFree( GetProcessHeap(), 0, cnt32 );
}
}
HeapFree( GetProcessHeap(), 0, pt );
}
break;
case META_POLYLINE:
if ((pt = convert_points( mr->rdParm[0], (POINTS *)(mr->rdParm + 1))))
{
Polyline( hdc, pt, mr->rdParm[0] );
HeapFree( GetProcessHeap(), 0, pt );
}
break;
case META_RESTOREDC:
RestoreDC(hdc, (SHORT)mr->rdParm[0]);
break;
case META_SELECTOBJECT:
SelectObject(hdc, *(ht->objectHandle + mr->rdParm[0]));
break;
case META_CHORD:
Chord(hdc, (SHORT)mr->rdParm[7], (SHORT)mr->rdParm[6],
(SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4],
(SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_CREATEPATTERNBRUSH:
switch (mr->rdParm[0])
{
case BS_PATTERN:
infohdr = (BITMAPINFOHEADER *)(mr->rdParm + 2);
MF_AddHandle(ht, handles,
CreatePatternBrush(CreateBitmap(infohdr->biWidth,
infohdr->biHeight,
infohdr->biPlanes,
infohdr->biBitCount,
mr->rdParm +
(sizeof(BITMAPINFOHEADER) / 2) + 4)));
break;
case BS_DIBPATTERN:
infohdr = (BITMAPINFOHEADER *)(mr->rdParm + 2);
MF_AddHandle(ht, handles, CreateDIBPatternBrushPt( infohdr, mr->rdParm[1] ));
break;
default:
ERR("META_CREATEPATTERNBRUSH: Unknown pattern type %d\n",
mr->rdParm[0]);
break;
}
break;
case META_CREATEPENINDIRECT:
{
LOGPEN pen;
pen.lopnStyle = mr->rdParm[0];
pen.lopnWidth.x = (SHORT)mr->rdParm[1];
pen.lopnWidth.y = (SHORT)mr->rdParm[2];
pen.lopnColor = MAKELONG( mr->rdParm[3], mr->rdParm[4] );
MF_AddHandle(ht, handles, CreatePenIndirect( &pen ));
}
break;
case META_CREATEFONTINDIRECT:
{
LOGFONTA font;
font.lfHeight = (SHORT)mr->rdParm[0];
font.lfWidth = (SHORT)mr->rdParm[1];
font.lfEscapement = (SHORT)mr->rdParm[2];
font.lfOrientation = (SHORT)mr->rdParm[3];
font.lfWeight = (SHORT)mr->rdParm[4];
font.lfItalic = LOBYTE(mr->rdParm[5]);
font.lfUnderline = HIBYTE(mr->rdParm[5]);
font.lfStrikeOut = LOBYTE(mr->rdParm[6]);
font.lfCharSet = HIBYTE(mr->rdParm[6]);
font.lfOutPrecision = LOBYTE(mr->rdParm[7]);
font.lfClipPrecision = HIBYTE(mr->rdParm[7]);
font.lfQuality = LOBYTE(mr->rdParm[8]);
font.lfPitchAndFamily = HIBYTE(mr->rdParm[8]);
memcpy( font.lfFaceName, mr->rdParm + 9, LF_FACESIZE );
MF_AddHandle(ht, handles, CreateFontIndirectA( &font ));
}
break;
case META_CREATEBRUSHINDIRECT:
{
LOGBRUSH brush;
brush.lbStyle = mr->rdParm[0];
brush.lbColor = MAKELONG( mr->rdParm[1], mr->rdParm[2] );
brush.lbHatch = mr->rdParm[3];
MF_AddHandle(ht, handles, CreateBrushIndirect( &brush ));
}
break;
case META_CREATEPALETTE:
MF_AddHandle(ht, handles, CreatePalette((LPLOGPALETTE)mr->rdParm));
break;
case META_SETTEXTALIGN:
SetTextAlign(hdc, mr->rdParm[0]);
break;
case META_SELECTPALETTE:
GDISelectPalette(hdc, *(ht->objectHandle + mr->rdParm[1]), mr->rdParm[0]);
break;
case META_SETMAPPERFLAGS:
SetMapperFlags(hdc, MAKELONG(mr->rdParm[0],mr->rdParm[1]));
break;
case META_REALIZEPALETTE:
GDIRealizePalette(hdc);
break;
case META_ESCAPE:
switch (mr->rdParm[0]) {
case GETSCALINGFACTOR: /* get function ... would just NULL dereference */
case GETPHYSPAGESIZE:
case GETPRINTINGOFFSET:
return FALSE;
case SETABORTPROC:
FIXME("Filtering Escape(SETABORTPROC), possible virus?\n");
return FALSE;
}
Escape(hdc, mr->rdParm[0], mr->rdParm[1], (LPCSTR)&mr->rdParm[2], NULL);
break;
case META_EXTTEXTOUT:
MF_Play_MetaExtTextOut( hdc, mr );
break;
case META_STRETCHDIB:
{
LPBITMAPINFO info = (LPBITMAPINFO) &(mr->rdParm[11]);
LPSTR bits = (LPSTR)info + bitmap_info_size( info, mr->rdParm[2] );
StretchDIBits( hdc, (SHORT)mr->rdParm[10], (SHORT)mr->rdParm[9], (SHORT)mr->rdParm[8],
(SHORT)mr->rdParm[7], (SHORT)mr->rdParm[6], (SHORT)mr->rdParm[5],
(SHORT)mr->rdParm[4], (SHORT)mr->rdParm[3], bits, info,
mr->rdParm[2],MAKELONG(mr->rdParm[0],mr->rdParm[1]));
}
break;
case META_DIBSTRETCHBLT:
{
LPBITMAPINFO info = (LPBITMAPINFO) &(mr->rdParm[10]);
LPSTR bits = (LPSTR)info + bitmap_info_size( info, DIB_RGB_COLORS );
StretchDIBits( hdc, (SHORT)mr->rdParm[9], (SHORT)mr->rdParm[8], (SHORT)mr->rdParm[7],
(SHORT)mr->rdParm[6], (SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4],
(SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2], bits, info,
DIB_RGB_COLORS,MAKELONG(mr->rdParm[0],mr->rdParm[1]));
}
break;
case META_STRETCHBLT:
{
HDC hdcSrc = CreateCompatibleDC(hdc);
HBITMAP hbitmap = CreateBitmap(mr->rdParm[10], /*Width */
mr->rdParm[11], /*Height*/
mr->rdParm[13], /*Planes*/
mr->rdParm[14], /*BitsPixel*/
&mr->rdParm[15]); /*bits*/
SelectObject(hdcSrc,hbitmap);
StretchBlt(hdc, (SHORT)mr->rdParm[9], (SHORT)mr->rdParm[8],
(SHORT)mr->rdParm[7], (SHORT)mr->rdParm[6],
hdcSrc, (SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4],
(SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
MAKELONG(mr->rdParm[0],mr->rdParm[1]));
DeleteDC(hdcSrc);
}
break;
case META_BITBLT:
{
HDC hdcSrc = CreateCompatibleDC(hdc);
HBITMAP hbitmap = CreateBitmap(mr->rdParm[7]/*Width */,
mr->rdParm[8]/*Height*/,
mr->rdParm[10]/*Planes*/,
mr->rdParm[11]/*BitsPixel*/,
&mr->rdParm[12]/*bits*/);
SelectObject(hdcSrc,hbitmap);
BitBlt(hdc,(SHORT)mr->rdParm[6],(SHORT)mr->rdParm[5],
(SHORT)mr->rdParm[4],(SHORT)mr->rdParm[3],
hdcSrc, (SHORT)mr->rdParm[2],(SHORT)mr->rdParm[1],
MAKELONG(0,mr->rdParm[0]));
DeleteDC(hdcSrc);
}
break;
case META_CREATEREGION:
{
HRGN hrgn = CreateRectRgn(0,0,0,0);
MF_Play_MetaCreateRegion(mr, hrgn);
MF_AddHandle(ht, handles, hrgn);
}
break;
case META_FILLREGION:
FillRgn(hdc, *(ht->objectHandle + mr->rdParm[1]),
*(ht->objectHandle + mr->rdParm[0]));
break;
case META_FRAMEREGION:
FrameRgn(hdc, *(ht->objectHandle + mr->rdParm[3]),
*(ht->objectHandle + mr->rdParm[2]),
(SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_INVERTREGION:
InvertRgn(hdc, *(ht->objectHandle + mr->rdParm[0]));
break;
case META_PAINTREGION:
PaintRgn(hdc, *(ht->objectHandle + mr->rdParm[0]));
break;
case META_SELECTCLIPREGION:
{
HRGN hrgn = 0;
if (mr->rdParm[0]) hrgn = *(ht->objectHandle + mr->rdParm[0]);
SelectClipRgn(hdc, hrgn);
}
break;
case META_DIBCREATEPATTERNBRUSH:
/* mr->rdParm[0] may be BS_PATTERN or BS_DIBPATTERN:
but there's no difference */
MF_AddHandle(ht, handles, CreateDIBPatternBrushPt( mr->rdParm + 2, mr->rdParm[1] ));
break;
case META_DIBBITBLT:
/* In practice I've found that there are two layouts for
META_DIBBITBLT, one (the first here) is the usual one when a src
dc is actually passed to it, the second occurs when the src dc is
passed in as NULL to the creating BitBlt. As the second case has
no dib, a size check will suffice to distinguish.
Caolan.McNamara@ul.ie */
if (mr->rdSize > 12) {
LPBITMAPINFO info = (LPBITMAPINFO) &(mr->rdParm[8]);
LPSTR bits = (LPSTR)info + bitmap_info_size(info, mr->rdParm[0]);
StretchDIBits(hdc, (SHORT)mr->rdParm[7], (SHORT)mr->rdParm[6], (SHORT)mr->rdParm[5],
(SHORT)mr->rdParm[4], (SHORT)mr->rdParm[3], (SHORT)mr->rdParm[2],
(SHORT)mr->rdParm[5], (SHORT)mr->rdParm[4], bits, info,
DIB_RGB_COLORS, MAKELONG(mr->rdParm[0], mr->rdParm[1]));
}
else /* equivalent to a PatBlt */
PatBlt(hdc, (SHORT)mr->rdParm[8], (SHORT)mr->rdParm[7],
(SHORT)mr->rdParm[6], (SHORT)mr->rdParm[5],
MAKELONG(mr->rdParm[0], mr->rdParm[1]));
break;
case META_SETTEXTCHAREXTRA:
SetTextCharacterExtra(hdc, (SHORT)mr->rdParm[0]);
break;
case META_SETTEXTJUSTIFICATION:
SetTextJustification(hdc, (SHORT)mr->rdParm[1], (SHORT)mr->rdParm[0]);
break;
case META_EXTFLOODFILL:
ExtFloodFill(hdc, (SHORT)mr->rdParm[4], (SHORT)mr->rdParm[3],
MAKELONG(mr->rdParm[1], mr->rdParm[2]),
mr->rdParm[0]);
break;
case META_SETDIBTODEV:
{
BITMAPINFO *info = (BITMAPINFO *) &(mr->rdParm[9]);
char *bits = (char *)info + bitmap_info_size( info, mr->rdParm[0] );
SetDIBitsToDevice(hdc, (SHORT)mr->rdParm[8], (SHORT)mr->rdParm[7],
(SHORT)mr->rdParm[6], (SHORT)mr->rdParm[5],
(SHORT)mr->rdParm[4], (SHORT)mr->rdParm[3],
mr->rdParm[2], mr->rdParm[1], bits, info,
mr->rdParm[0]);
break;
}
#define META_UNIMP(x) case x: \
FIXME("PlayMetaFileRecord:record type "#x" not implemented.\n"); \
break;
META_UNIMP(META_DRAWTEXT)
META_UNIMP(META_ANIMATEPALETTE)
META_UNIMP(META_SETPALENTRIES)
META_UNIMP(META_RESIZEPALETTE)
META_UNIMP(META_RESETDC)
META_UNIMP(META_STARTDOC)
META_UNIMP(META_STARTPAGE)
META_UNIMP(META_ENDPAGE)
META_UNIMP(META_ABORTDOC)
META_UNIMP(META_ENDDOC)
META_UNIMP(META_CREATEBRUSH)
META_UNIMP(META_CREATEBITMAPINDIRECT)
META_UNIMP(META_CREATEBITMAP)
#undef META_UNIMP
default:
WARN("PlayMetaFileRecord: Unknown record type %x\n", mr->rdFunction);
return FALSE;
}
return TRUE;
}
/******************************************************************
* SetMetaFileBitsEx (GDI32.@)
*
* Create a metafile from raw data. No checking of the data is performed.
* Use GetMetaFileBitsEx() to get raw data from a metafile.
*
* PARAMS
* size [I] size of metafile, in bytes
* lpData [I] pointer to metafile data
*
* RETURNS
* Success: Handle to metafile.
* Failure: NULL.
*/
HMETAFILE WINAPI SetMetaFileBitsEx( UINT size, const BYTE *lpData )
{
const METAHEADER *mh_in = (const METAHEADER *)lpData;
METAHEADER *mh_out;
if (size & 1) return 0;
if (!size || mh_in->mtType != METAFILE_MEMORY || mh_in->mtVersion != MFVERSION ||
mh_in->mtHeaderSize != sizeof(METAHEADER) / 2)
{
SetLastError(ERROR_INVALID_DATA);
return 0;
}
mh_out = HeapAlloc( GetProcessHeap(), 0, size );
if (!mh_out)
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return 0;
}
memcpy(mh_out, mh_in, size);
mh_out->mtSize = size / 2;
return MF_Create_HMETAFILE(mh_out);
}
/*****************************************************************
* GetMetaFileBitsEx (GDI32.@)
*
* Get raw metafile data.
*
* Copies the data from metafile _hmf_ into the buffer _buf_.
*
* PARAMS
* hmf [I] metafile
* nSize [I] size of buf
* buf [O] buffer to receive raw metafile data
*
* RETURNS
* If _buf_ is zero, returns size of buffer required. Otherwise,
* returns number of bytes copied.
*/
UINT WINAPI GetMetaFileBitsEx( HMETAFILE hmf, UINT nSize, LPVOID buf )
{
METAHEADER *mh = GDI_GetObjPtr( hmf, OBJ_METAFILE );
UINT mfSize;
BOOL mf_copy = FALSE;
TRACE("(%p,%d,%p)\n", hmf, nSize, buf);
if (!mh) return 0; /* FIXME: error code */
if(mh->mtType == METAFILE_DISK)
{
mh = MF_LoadDiskBasedMetaFile( mh );
if (!mh)
{
GDI_ReleaseObj( hmf );
return 0;
}
mf_copy = TRUE;
}
mfSize = mh->mtSize * 2;
if (buf)
{
if(mfSize > nSize) mfSize = nSize;
memmove(buf, mh, mfSize);
}
if (mf_copy) HeapFree( GetProcessHeap(), 0, mh );
GDI_ReleaseObj( hmf );
TRACE("returning size %d\n", mfSize);
return mfSize;
}
/******************************************************************
* add_mf_comment
*
* Helper for GetWinMetaFileBits
*
* Add the MFCOMMENT record[s] which is essentially a copy
* of the original emf.
*/
static BOOL add_mf_comment(HDC hdc, HENHMETAFILE emf)
{
DWORD size = GetEnhMetaFileBits(emf, 0, NULL), i;
BYTE *bits, *chunk_data;
emf_in_wmf_comment *chunk = NULL;
BOOL ret = FALSE;
static const DWORD max_chunk_size = 0x2000;
if(!size) return FALSE;
chunk_data = bits = HeapAlloc(GetProcessHeap(), 0, size);
if(!bits) return FALSE;
if(!GetEnhMetaFileBits(emf, size, bits)) goto end;
chunk = HeapAlloc(GetProcessHeap(), 0, FIELD_OFFSET(emf_in_wmf_comment, emf_data[max_chunk_size]));
if(!chunk) goto end;
chunk->magic = WMFC_MAGIC;
chunk->comment_type = 0x1;
chunk->version = 0x00010000;
chunk->checksum = 0; /* We fixup the first chunk's checksum before returning from GetWinMetaFileBits */
chunk->flags = 0;
chunk->num_chunks = (size + max_chunk_size - 1) / max_chunk_size;
chunk->chunk_size = max_chunk_size;
chunk->remaining_size = size;
chunk->emf_size = size;
for(i = 0; i < chunk->num_chunks; i++)
{
if(i == chunk->num_chunks - 1) /* last chunk */
chunk->chunk_size = chunk->remaining_size;
chunk->remaining_size -= chunk->chunk_size;
memcpy(chunk->emf_data, chunk_data, chunk->chunk_size);
chunk_data += chunk->chunk_size;
if(!Escape(hdc, MFCOMMENT, FIELD_OFFSET(emf_in_wmf_comment, emf_data[chunk->chunk_size]), (char*)chunk, NULL))
goto end;
}
ret = TRUE;
end:
HeapFree(GetProcessHeap(), 0, chunk);
HeapFree(GetProcessHeap(), 0, bits);
return ret;
}
/*******************************************************************
* muldiv
*
* Behaves somewhat differently to MulDiv when the answer is -ve
* and also rounds n.5 towards zero
*/
static INT muldiv(INT m1, INT m2, INT d)
{
LONGLONG ret;
ret = ((LONGLONG)m1 * m2 + d/2) / d; /* Always add d/2 even if ret will be -ve */
if((LONGLONG)m1 * m2 * 2 == (2 * ret - 1) * d) /* If the answer is exactly n.5 round towards zero */
{
if(ret > 0) ret--;
else ret++;
}
return ret;
}
/******************************************************************
* set_window
*
* Helper for GetWinMetaFileBits
*
* Add the SetWindowOrg and SetWindowExt records
*/
static BOOL set_window(HDC hdc, HENHMETAFILE emf, HDC ref_dc, INT map_mode)
{
ENHMETAHEADER header;
INT horz_res, vert_res, horz_size, vert_size;
POINT pt;
if(!GetEnhMetaFileHeader(emf, sizeof(header), &header)) return FALSE;
horz_res = GetDeviceCaps(ref_dc, HORZRES);
vert_res = GetDeviceCaps(ref_dc, VERTRES);
horz_size = GetDeviceCaps(ref_dc, HORZSIZE);
vert_size = GetDeviceCaps(ref_dc, VERTSIZE);
switch(map_mode)
{
case MM_TEXT:
case MM_ISOTROPIC:
case MM_ANISOTROPIC:
pt.y = muldiv(header.rclFrame.top, vert_res, vert_size * 100);
pt.x = muldiv(header.rclFrame.left, horz_res, horz_size * 100);
break;
case MM_LOMETRIC:
pt.y = muldiv(-header.rclFrame.top, 1, 10) + 1;
pt.x = muldiv( header.rclFrame.left, 1, 10);
break;
case MM_HIMETRIC:
pt.y = -header.rclFrame.top + 1;
pt.x = (header.rclFrame.left >= 0) ? header.rclFrame.left : header.rclFrame.left + 1; /* See the tests */
break;
case MM_LOENGLISH:
pt.y = muldiv(-header.rclFrame.top, 10, 254) + 1;
pt.x = muldiv( header.rclFrame.left, 10, 254);
break;
case MM_HIENGLISH:
pt.y = muldiv(-header.rclFrame.top, 100, 254) + 1;
pt.x = muldiv( header.rclFrame.left, 100, 254);
break;
case MM_TWIPS:
pt.y = muldiv(-header.rclFrame.top, 72 * 20, 2540) + 1;
pt.x = muldiv( header.rclFrame.left, 72 * 20, 2540);
break;
default:
WARN("Unknown map mode %d\n", map_mode);
return FALSE;
}
SetWindowOrgEx(hdc, pt.x, pt.y, NULL);
pt.x = muldiv(header.rclFrame.right - header.rclFrame.left, horz_res, horz_size * 100);
pt.y = muldiv(header.rclFrame.bottom - header.rclFrame.top, vert_res, vert_size * 100);
SetWindowExtEx(hdc, pt.x, pt.y, NULL);
return TRUE;
}
/******************************************************************
* GetWinMetaFileBits [GDI32.@]
*/
UINT WINAPI GetWinMetaFileBits(HENHMETAFILE hemf,
UINT cbBuffer, LPBYTE lpbBuffer,
INT map_mode, HDC hdcRef)
{
HDC hdcmf;
HMETAFILE hmf;
UINT ret, full_size;
RECT rc;
GetClipBox(hdcRef, &rc);
TRACE("(%p,%d,%p,%d,%p) rc=%s\n", hemf, cbBuffer, lpbBuffer,
map_mode, hdcRef, wine_dbgstr_rect(&rc));
hdcmf = CreateMetaFileW(NULL);
add_mf_comment(hdcmf, hemf);
SetMapMode(hdcmf, map_mode);
if(!set_window(hdcmf, hemf, hdcRef, map_mode))
goto error;
PlayEnhMetaFile(hdcmf, hemf, &rc);
hmf = CloseMetaFile(hdcmf);
full_size = GetMetaFileBitsEx(hmf, 0, NULL);
ret = GetMetaFileBitsEx(hmf, cbBuffer, lpbBuffer);
DeleteMetaFile(hmf);
if(ret && ret == full_size && lpbBuffer) /* fixup checksum, but only if retrieving all of the bits */
{
WORD checksum = 0;
METARECORD *comment_rec = (METARECORD*)(lpbBuffer + sizeof(METAHEADER));
UINT i;
for(i = 0; i < full_size / 2; i++)
checksum += ((WORD*)lpbBuffer)[i];
comment_rec->rdParm[8] = ~checksum + 1;
}
return ret;
error:
DeleteMetaFile(CloseMetaFile(hdcmf));
return 0;
}
/******************************************************************
* MF_Play_MetaCreateRegion
*
* Handles META_CREATEREGION for PlayMetaFileRecord().
*
* The layout of the record looks something like this:
*
* rdParm meaning
* 0 Always 0?
* 1 Always 6?
* 2 Looks like a handle? - not constant
* 3 0 or 1 ??
* 4 Total number of bytes
* 5 No. of separate bands = n [see below]
* 6 Largest number of x co-ords in a band
* 7-10 Bounding box x1 y1 x2 y2
* 11-... n bands
*
* Regions are divided into bands that are uniform in the
* y-direction. Each band consists of pairs of on/off x-coords and is
* written as
* m y0 y1 x1 x2 x3 ... xm m
* into successive rdParm[]s.
*
* This is probably just a dump of the internal RGNOBJ?
*
* HDMD - 18/12/97
*
*/
static BOOL MF_Play_MetaCreateRegion( METARECORD *mr, HRGN hrgn )
{
WORD band, pair;
WORD *start, *end;
INT16 y0, y1;
HRGN hrgn2 = CreateRectRgn( 0, 0, 0, 0 );
for(band = 0, start = &(mr->rdParm[11]); band < mr->rdParm[5];
band++, start = end + 1) {
if(*start / 2 != (*start + 1) / 2) {
WARN("Delimiter not even.\n");
DeleteObject( hrgn2 );
return FALSE;
}
end = start + *start + 3;
if(end > (WORD *)mr + mr->rdSize) {
WARN("End points outside record.\n");
DeleteObject( hrgn2 );
return FALSE;
}
if(*start != *end) {
WARN("Mismatched delimiters.\n");
DeleteObject( hrgn2 );
return FALSE;
}
y0 = *(INT16 *)(start + 1);
y1 = *(INT16 *)(start + 2);
for(pair = 0; pair < *start / 2; pair++) {
SetRectRgn( hrgn2, *(INT16 *)(start + 3 + 2*pair), y0,
*(INT16 *)(start + 4 + 2*pair), y1 );
CombineRgn(hrgn, hrgn, hrgn2, RGN_OR);
}
}
DeleteObject( hrgn2 );
return TRUE;
}
/******************************************************************
* MF_Play_MetaExtTextOut
*
* Handles META_EXTTEXTOUT for PlayMetaFileRecord().
*/
static BOOL MF_Play_MetaExtTextOut(HDC hdc, METARECORD *mr)
{
INT *dx = NULL;
int i;
SHORT *dxx;
LPSTR sot;
DWORD len;
WORD s1;
RECT rect;
BOOL isrect = mr->rdParm[3] & (ETO_OPAQUE | ETO_CLIPPED);
s1 = mr->rdParm[2]; /* String length */
len = sizeof(METARECORD) + (((s1 + 1) >> 1) * 2) + 2 * sizeof(short)
+ sizeof(UINT16) + (isrect ? 4 * sizeof(SHORT) : 0);
/* rec len without dx array */
sot = (LPSTR)&mr->rdParm[4]; /* start_of_text */
if (isrect)
{
rect.left = (SHORT)mr->rdParm[4];
rect.top = (SHORT)mr->rdParm[5];
rect.right = (SHORT)mr->rdParm[6];
rect.bottom = (SHORT)mr->rdParm[7];
sot += 4 * sizeof(SHORT); /* there is a rectangle, so add offset */
}
if (mr->rdSize == len / 2)
dxx = NULL; /* determine if array is present */
else
if (mr->rdSize == (len + s1 * sizeof(INT16)) / 2)
{
dxx = (SHORT *)(sot+(((s1+1)>>1)*2));
dx = HeapAlloc( GetProcessHeap(), 0, s1*sizeof(INT));
if (dx) for (i = 0; i < s1; i++) dx[i] = dxx[i];
}
else {
TRACE("%s len: %d\n", sot, mr->rdSize);
WARN("Please report: ExtTextOut len=%d slen=%d rdSize=%d opt=%04x\n",
len, s1, mr->rdSize, mr->rdParm[3]);
dxx = NULL; /* shouldn't happen -- but if, we continue with NULL */
}
ExtTextOutA( hdc,
(SHORT)mr->rdParm[1], /* X position */
(SHORT)mr->rdParm[0], /* Y position */
mr->rdParm[3], /* options */
&rect, /* rectangle */
sot, /* string */
s1, dx); /* length, dx array */
if (dx)
{
TRACE("%s len: %d dx0: %d\n", sot, mr->rdSize, dx[0]);
HeapFree( GetProcessHeap(), 0, dx );
}
return TRUE;
}
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