ReactOS 0.4.15-dev-8417-gb6b82fe
metafile.c
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1/*
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS system libraries
4 * FILE: win32ss/gdi/gdi32/objects/metafile.c
5 * PURPOSE: metafile and enhanced metafile support
6 * PROGRAMMERS: Katayama Hirofumi MZ (katayama.hirofumi.mz@gmail.com)
7 */
8#include <precomp.h>
9
10#define NDEBUG
11#include <debug.h>
12
13/* FUNCTIONS *****************************************************************/
14
15/*
16 * @implemented
17 */
18BOOL
21{
22 PDC_ATTR pdcattr = GdiGetDcAttr(hdc);
23
24 if ( pdcattr )
25 {
26 return !!( pdcattr->ulDirty_ & DC_PLAYMETAFILE );
27 }
28 return FALSE;
29}
30
31/*
32 * @implemented
33 */
34BOOL
37{
38 ULONG ulObjType;
39
40 ulObjType = GDI_HANDLE_GET_TYPE(hdc);
41 if (ulObjType == GDILoObjType_LO_METADC16_TYPE)
42 {
43 return TRUE;
44 }
45
46 if (ulObjType == GDILoObjType_LO_ALTDC_TYPE)
47 {
48 PLDC pLDC = GdiGetLDC(hdc);
49 if ( !pLDC )
50 {
52 return FALSE;
53 }
54 return !!( pLDC->iType == LDC_EMFLDC );
55 }
56
57 return FALSE;
58}
59
60/*
61 * @implemented
62 */
63BOOL
66{
68
69 if ( hType != GDILoObjType_LO_DC_TYPE )
70 {
71 if ( hType == GDILoObjType_LO_METADC16_TYPE )
72 return FALSE;
73 else
74 {
75 PLDC pLDC = GdiGetLDC(hdc);
76 if ( !pLDC )
77 {
79 return FALSE;
80 }
81 return !!( pLDC->Flags & LDC_META_PRINT );
82 }
83 }
84 return FALSE;
85}
86
87// NOTE: I wanna use GdiCreateLocalMetaFilePict and GdiConvertMetaFilePict
88// functions for clipboard data conversion. --- katahiromz
89
90/*
91 * @implemented
92 */
96{
97 HGLOBAL hMetaFilePict;
98 METAFILEPICT * pInfo;
99 HMETAFILE hMF = NULL;
100 BYTE * Buffer = NULL;
101 BYTE * BufNew = NULL;
102 HDC hDC = NULL;
103 UINT nSize, cSize;
104 DWORD iType;
105
106 // NOTE: On Win32, there is no difference between the local heap and
107 // the global heap. GlobalAlloc and LocalAlloc have same effect.
108
109 // allocate for METAFILEPICT
110 hMetaFilePict = GlobalAlloc(GHND | GMEM_SHARE, sizeof(METAFILEPICT));
111 pInfo = (METAFILEPICT *)GlobalLock(hMetaFilePict);
112 if (pInfo == NULL)
113 goto Exit;
114
116
117 // allocate buffer
119 if (Buffer == NULL)
120 goto Exit;
121
122 // store to buffer
123 nSize = NtGdiGetServerMetaFileBits( hmo, nSize, Buffer, &iType, (PDWORD)&pInfo->mm, (PDWORD)&pInfo->xExt, (PDWORD)&pInfo->yExt );
124 if (nSize == 0)
125 goto Exit;
126
127 if ( iType == GDITAG_TYPE_EMF ) // handle conversion to MFP
128 {
129 static const WCHAR szDisplayW[] = { 'D','I','S','P','L','A','Y','\0' };
130 HENHMETAFILE hEMF;
131 ENHMETAHEADER emh;
132
134 if (hEMF == NULL)
135 goto Exit;
136
137 if (!GetEnhMetaFileHeader( hEMF, sizeof(emh), &emh ))
138 {
139 DeleteEnhMetaFile(hEMF);
140 goto Exit;
141 }
142
143 pInfo->mm = MM_ANISOTROPIC; // wine uses MM_ISOTROPIC.
144 pInfo->xExt = emh.rclFrame.right - emh.rclFrame.left; // Width
145 pInfo->yExt = emh.rclFrame.bottom - emh.rclFrame.top; // Height
146
147 hDC = CreateDCW(szDisplayW, NULL, NULL, NULL);
148 if (hDC)
149 {
150 cSize = GetWinMetaFileBits( hEMF, 0, NULL, MM_ANISOTROPIC, hDC );
151 if (cSize)
152 {
153 BufNew = (BYTE *)LocalAlloc(LPTR, cSize);
154 if (BufNew)
155 {
156 nSize = GetWinMetaFileBits( hEMF, cSize, (LPBYTE)BufNew, MM_ANISOTROPIC, hDC );
157 if (nSize == cSize)
158 {
159 if (Buffer) LocalFree(Buffer);
160 Buffer = BufNew;
161 }
162 }
163 }
164 DeleteDC(hDC);
165 }
166 DeleteEnhMetaFile(hEMF);
167
168 if (Buffer != BufNew)
169 goto Exit;
170 }
171
172 // create metafile from buffer
174 if (hMF == NULL)
175 goto Exit;
176
177 // set metafile handle
178 pInfo->hMF = hMF;
179
180Exit:
181 // clean up
182 if (Buffer)
184 if (pInfo)
185 GlobalUnlock(hMetaFilePict);
186 if (hMF == NULL)
187 {
188 // failure
189 GlobalFree(hMetaFilePict);
190 hMetaFilePict = NULL;
191 }
192
193 return hMetaFilePict; // success if non-NULL
194}
195
196/*
197 * @implemented
198 */
199HANDLE
200WINAPI
202{
203 HMETAFILE hMF;
204 UINT nSize;
205 HANDLE hmo = NULL;
206 BYTE * Buffer = NULL;
207 METAFILEPICT * pInfo = NULL;
208
209 // get METAFILEPICT pointer
210 pInfo = (METAFILEPICT *)GlobalLock(hMetaFilePict);
211 if (pInfo == NULL)
212 goto Exit;
213
214 // get metafile handle
215 hMF = pInfo->hMF;
216
217 // get size of buffer
218 nSize = GetMetaFileBitsEx(hMF, 0, NULL);
219 if (nSize == 0)
220 goto Exit;
221
222 // allocate buffer
224 if (Buffer == NULL)
225 goto Exit;
226
227 // store to buffer
229 if (nSize == 0)
230 goto Exit;
231
232 hmo = NtGdiCreateServerMetaFile( GDITAG_TYPE_MFP, nSize, Buffer, pInfo->mm, pInfo->xExt, pInfo->yExt);
233
234Exit:
235 // clean up
236 if (pInfo)
237 GlobalUnlock(hMetaFilePict);
238 if (Buffer)
240 return hmo; // success if non-NULL
241}
static HDC hDC
Definition: 3dtext.c:33
Definition: bufpool.h:45
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
#define SetLastError(x)
Definition: compat.h:752
#define ERROR_INVALID_HANDLE
Definition: compat.h:98
unsigned int BOOL
Definition: ntddk_ex.h:94
unsigned long DWORD
Definition: ntddk_ex.h:95
FORCEINLINE PDC_ATTR GdiGetDcAttr(HDC hdc)
Definition: gdi32p.h:451
PLDC FASTCALL GdiGetLDC(HDC hDC)
Definition: misc.c:785
#define GDI_HANDLE_GET_TYPE(h)
Definition: gdi.h:31
#define LDC_EMFLDC
Definition: gdi_private.h:105
@ GDILoObjType_LO_METADC16_TYPE
Definition: gdi_private.h:49
@ GDILoObjType_LO_DC_TYPE
Definition: gdi_private.h:34
@ GDILoObjType_LO_ALTDC_TYPE
Definition: gdi_private.h:43
LPVOID NTAPI GlobalLock(HGLOBAL hMem)
Definition: heapmem.c:755
HGLOBAL NTAPI GlobalFree(HGLOBAL hMem)
Definition: heapmem.c:611
BOOL NTAPI GlobalUnlock(HGLOBAL hMem)
Definition: heapmem.c:1190
HLOCAL NTAPI LocalAlloc(UINT uFlags, SIZE_T dwBytes)
Definition: heapmem.c:1390
HGLOBAL NTAPI GlobalAlloc(UINT uFlags, SIZE_T dwBytes)
Definition: heapmem.c:368
HLOCAL NTAPI LocalFree(HLOCAL hMem)
Definition: heapmem.c:1594
HDC hdc
Definition: main.c:9
static HDC
Definition: imagelist.c:92
unsigned int UINT
Definition: ndis.h:50
__kernel_entry W32KAPI ULONG APIENTRY NtGdiGetServerMetaFileBits(_In_ HANDLE hmo, _In_ ULONG cjData, _Out_writes_bytes_opt_(cjData) LPBYTE pjData, _Out_ PDWORD piType, _Out_ PDWORD pmm, _Out_ PDWORD pxExt, _Out_ PDWORD pyExt)
__kernel_entry W32KAPI HANDLE APIENTRY NtGdiCreateServerMetaFile(_In_ DWORD iType, _In_ ULONG cjData, _In_reads_bytes_(cjData) LPBYTE pjData, _In_ DWORD mm, _In_ DWORD xExt, _In_ DWORD yExt)
#define DC_PLAYMETAFILE
Definition: ntgdihdl.h:134
#define LDC_META_PRINT
Definition: ntgdihdl.h:159
#define GDITAG_TYPE_EMF
Definition: ntgdityp.h:246
#define GDITAG_TYPE_MFP
Definition: ntgdityp.h:247
DWORD * PDWORD
Definition: pedump.c:68
static void Exit(void)
Definition: sock.c:1330
long bottom
Definition: polytest.cpp:53
long right
Definition: polytest.cpp:53
long top
Definition: polytest.cpp:53
long left
Definition: polytest.cpp:53
ULONG ulDirty_
Definition: ntgdihdl.h:294
Definition: ntgdihdl.h:263
INT iType
Definition: ntgdihdl.h:266
ULONG Flags
Definition: ntgdihdl.h:265
RECTL rclFrame
Definition: wingdi.h:2323
HMETAFILE hMF
Definition: wingdi.h:2608
unsigned char * LPBYTE
Definition: typedefs.h:53
uint32_t ULONG
Definition: typedefs.h:59
HANDLE WINAPI GdiConvertMetaFilePict(HGLOBAL hMetaFilePict)
Definition: metafile.c:201
BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
Definition: metafile.c:65
BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
Definition: metafile.c:36
BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
Definition: metafile.c:20
HGLOBAL WINAPI GdiCreateLocalMetaFilePict(HANDLE hmo)
Definition: metafile.c:95
#define LPTR
Definition: winbase.h:381
#define GHND
Definition: winbase.h:297
#define GMEM_SHARE
Definition: winbase.h:305
*nSize LPSTR _Inout_ LPDWORD nSize
Definition: winbase.h:2084
_In_ ULONG iType
Definition: winddi.h:3748
#define WINAPI
Definition: msvc.h:6
BOOL WINAPI DeleteEnhMetaFile(_In_opt_ HENHMETAFILE)
UINT WINAPI GetWinMetaFileBits(_In_ HENHMETAFILE hemf, _In_ UINT cbData16, _Out_writes_bytes_opt_(cbData16) LPBYTE pData16, _In_ INT iMapMode, _In_ HDC hdcRef)
#define MM_ANISOTROPIC
Definition: wingdi.h:867
UINT WINAPI GetMetaFileBitsEx(_In_ HMETAFILE hMF, _In_ UINT cbBuffer, _Out_writes_bytes_opt_(cbBuffer) LPVOID lpData)
HMETAFILE WINAPI SetMetaFileBitsEx(_In_ UINT cbBuffer, _In_reads_bytes_(cbBuffer) CONST BYTE *lpData)
HENHMETAFILE WINAPI SetEnhMetaFileBits(_In_ UINT nSize, _In_reads_bytes_(nSize) const BYTE *pb)
UINT WINAPI GetEnhMetaFileHeader(_In_ HENHMETAFILE hemf, _In_ UINT nSize, _Out_writes_bytes_opt_(nSize) LPENHMETAHEADER lpEnhMetaHeader)
BOOL WINAPI DeleteDC(_In_ HDC)
HDC WINAPI CreateDCW(_In_opt_ LPCWSTR pszDriver, _In_opt_ LPCWSTR pszDevice, _In_opt_ LPCWSTR psz, _In_opt_ const DEVMODEW *pdmInit)
__wchar_t WCHAR
Definition: xmlstorage.h:180
unsigned char BYTE
Definition: xxhash.c:193