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Sweden-Number/dlls/gdi32/gdiobj.c

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/*
* GDI functions
*
* Copyright 1993 Alexandre Julliard
*
* 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
*/
#include <assert.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winreg.h"
#include "winnls.h"
#include "winerror.h"
#include "winternl.h"
#include "ntgdi_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
#define FIRST_GDI_HANDLE 32
static GDI_SHARED_MEMORY gdi_shared;
static GDI_HANDLE_ENTRY *next_free;
static GDI_HANDLE_ENTRY *next_unused = gdi_shared.Handles + FIRST_GDI_HANDLE;
static LONG debug_count;
HMODULE gdi32_module = 0;
static inline HGDIOBJ entry_to_handle( GDI_HANDLE_ENTRY *entry )
{
unsigned int idx = entry - gdi_shared.Handles;
return LongToHandle( idx | (entry->Unique << NTGDI_HANDLE_TYPE_SHIFT) );
}
static inline GDI_HANDLE_ENTRY *handle_entry( HGDIOBJ handle )
{
unsigned int idx = LOWORD(handle);
if (idx < GDI_MAX_HANDLE_COUNT && gdi_shared.Handles[idx].Type)
{
if (!HIWORD( handle ) || HIWORD( handle ) == gdi_shared.Handles[idx].Unique)
return &gdi_shared.Handles[idx];
}
if (handle) WARN( "invalid handle %p\n", handle );
return NULL;
}
static inline struct gdi_obj_header *entry_obj( GDI_HANDLE_ENTRY *entry )
{
return (struct gdi_obj_header *)(ULONG_PTR)entry->Object;
}
/***********************************************************************
* GDI stock objects
*/
static const LOGBRUSH WhiteBrush = { BS_SOLID, RGB(255,255,255), 0 };
static const LOGBRUSH BlackBrush = { BS_SOLID, RGB(0,0,0), 0 };
static const LOGBRUSH NullBrush = { BS_NULL, 0, 0 };
static const LOGBRUSH LtGrayBrush = { BS_SOLID, RGB(192,192,192), 0 };
static const LOGBRUSH GrayBrush = { BS_SOLID, RGB(128,128,128), 0 };
static const LOGBRUSH DkGrayBrush = { BS_SOLID, RGB(64,64,64), 0 };
static const LOGBRUSH DCBrush = { BS_SOLID, RGB(255,255,255), 0 };
static CRITICAL_SECTION gdi_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &gdi_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": gdi_section") }
};
static CRITICAL_SECTION gdi_section = { &critsect_debug, -1, 0, 0, 0, 0 };
/****************************************************************************
*
* language-independent stock fonts
*
*/
static const LOGFONTW OEMFixedFont =
{ 12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, OEM_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"" };
static const LOGFONTW AnsiFixedFont =
{ 12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier" };
static const LOGFONTW AnsiVarFont =
{ 12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Sans Serif" };
/******************************************************************************
*
* language-dependent stock fonts
*
* 'ANSI' charset and 'DEFAULT' charset is not same.
* The chars in CP_ACP should be drawn with 'DEFAULT' charset.
* 'ANSI' charset seems to be identical with ISO-8859-1.
* 'DEFAULT' charset is a language-dependent charset.
*
* 'System' font seems to be an alias for language-dependent font.
*/
/*
* language-dependent stock fonts for all known charsets
* please see TranslateCharsetInfo (dlls/gdi/font.c) and
* CharsetBindingInfo (dlls/x11drv/xfont.c),
* and modify entries for your language if needed.
*/
struct DefaultFontInfo
{
UINT charset;
LOGFONTW SystemFont;
LOGFONTW DeviceDefaultFont;
LOGFONTW SystemFixedFont;
LOGFONTW DefaultGuiFont;
};
static const struct DefaultFontInfo default_fonts[] =
{
{ ANSI_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, ANSI_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, ANSI_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ EASTEUROPE_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ RUSSIAN_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ GREEK_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, GREEK_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, GREEK_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GREEK_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GREEK_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ TURKISH_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, TURKISH_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, TURKISH_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, TURKISH_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, TURKISH_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ HEBREW_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, HEBREW_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, HEBREW_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HEBREW_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HEBREW_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ ARABIC_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, ARABIC_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, ARABIC_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ARABIC_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ARABIC_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ BALTIC_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, BALTIC_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, BALTIC_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, BALTIC_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, BALTIC_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ THAI_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, THAI_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, THAI_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, THAI_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-11, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, THAI_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ SHIFTJIS_CHARSET,
{ /* System */
18, 8, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
18, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ GB2312_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, GB2312_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, GB2312_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GB2312_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GB2312_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ HANGEUL_CHARSET,
{ /* System */
16, 8, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ CHINESEBIG5_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
{ JOHAB_CHARSET,
{ /* System */
16, 7, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, JOHAB_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* Device Default */
16, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, JOHAB_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"System"
},
{ /* System Fixed */
16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, JOHAB_CHARSET,
0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, L"Courier"
},
{ /* DefaultGuiFont */
-12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, JOHAB_CHARSET,
0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS, L"MS Shell Dlg"
},
},
};
/*************************************************************************
* __wine_make_gdi_object_system (win32u.@)
*
* USER has to tell GDI that its system brushes and pens are non-deletable.
* For a description of the GDI object magics and their flags,
* see "Undocumented Windows" (wrong about the OBJECT_NOSYSTEM flag, though).
*/
void CDECL __wine_make_gdi_object_system( HGDIOBJ handle, BOOL set)
{
GDI_HANDLE_ENTRY *entry;
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( handle ))) entry_obj( entry )->system = !!set;
LeaveCriticalSection( &gdi_section );
}
/******************************************************************************
* get_default_fonts
*/
static const struct DefaultFontInfo* get_default_fonts(UINT charset)
{
unsigned int n;
for(n = 0; n < ARRAY_SIZE( default_fonts ); n++)
{
if ( default_fonts[n].charset == charset )
return &default_fonts[n];
}
FIXME( "unhandled charset 0x%08x - use ANSI_CHARSET for default stock objects\n", charset );
return &default_fonts[0];
}
/******************************************************************************
* get_default_charset (internal)
*
* get the language-dependent charset that can handle CP_ACP correctly.
*/
static UINT get_default_charset( void )
{
CHARSETINFO csi;
UINT uACP;
uACP = GetACP();
csi.ciCharset = ANSI_CHARSET;
if ( !translate_charset_info( ULongToPtr(uACP), &csi, TCI_SRCCODEPAGE ) )
{
FIXME( "unhandled codepage %u - use ANSI_CHARSET for default stock objects\n", uACP );
return ANSI_CHARSET;
}
return csi.ciCharset;
}
/***********************************************************************
* GDI_get_ref_count
*
* Retrieve the reference count of a GDI object.
* Note: the object must be locked otherwise the count is meaningless.
*/
UINT GDI_get_ref_count( HGDIOBJ handle )
{
GDI_HANDLE_ENTRY *entry;
UINT ret = 0;
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( handle ))) ret = entry_obj( entry )->selcount;
LeaveCriticalSection( &gdi_section );
return ret;
}
/***********************************************************************
* GDI_inc_ref_count
*
* Increment the reference count of a GDI object.
*/
HGDIOBJ GDI_inc_ref_count( HGDIOBJ handle )
{
GDI_HANDLE_ENTRY *entry;
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( handle ))) entry_obj( entry )->selcount++;
else handle = 0;
LeaveCriticalSection( &gdi_section );
return handle;
}
/***********************************************************************
* GDI_dec_ref_count
*
* Decrement the reference count of a GDI object.
*/
BOOL GDI_dec_ref_count( HGDIOBJ handle )
{
GDI_HANDLE_ENTRY *entry;
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( handle )))
{
assert( entry_obj( entry )->selcount );
if (!--entry_obj( entry )->selcount && entry_obj( entry )->deleted)
{
/* handle delayed DeleteObject*/
entry_obj( entry )->deleted = 0;
LeaveCriticalSection( &gdi_section );
TRACE( "executing delayed DeleteObject for %p\n", handle );
NtGdiDeleteObjectApp( handle );
return TRUE;
}
}
LeaveCriticalSection( &gdi_section );
return entry != NULL;
}
/******************************************************************************
* get_reg_dword
*
* Read a DWORD value from the registry
*/
static BOOL get_reg_dword(HKEY base, const WCHAR *key_name, const WCHAR *value_name, DWORD *value)
{
HKEY key;
DWORD type, data, size = sizeof(data);
BOOL ret = FALSE;
if (RegOpenKeyW(base, key_name, &key) == ERROR_SUCCESS)
{
if (RegQueryValueExW(key, value_name, NULL, &type, (void *)&data, &size) == ERROR_SUCCESS &&
type == REG_DWORD)
{
*value = data;
ret = TRUE;
}
RegCloseKey(key);
}
return ret;
}
/******************************************************************************
* get_dpi
*
* get the dpi from the registry
*/
DWORD get_dpi(void)
{
DWORD dpi;
if (get_reg_dword(HKEY_CURRENT_USER, L"Control Panel\\Desktop", L"LogPixels", &dpi))
return dpi;
if (get_reg_dword(HKEY_CURRENT_CONFIG, L"Software\\Fonts", L"LogPixels", &dpi))
return dpi;
return 0;
}
/******************************************************************************
* get_system_dpi
*
* Get the system DPI, based on the DPI awareness mode.
*/
DWORD get_system_dpi(void)
{
static UINT (WINAPI *pGetDpiForSystem)(void);
if (!pGetDpiForSystem)
{
HMODULE user = GetModuleHandleW( L"user32.dll" );
if (user) pGetDpiForSystem = (void *)GetProcAddress( user, "GetDpiForSystem" );
}
return pGetDpiForSystem ? pGetDpiForSystem() : 96;
}
static HFONT create_font( const LOGFONTW *deffont )
{
ENUMLOGFONTEXDVW lf;
memset( &lf, 0, sizeof(lf) );
lf.elfEnumLogfontEx.elfLogFont = *deffont;
return NtGdiHfontCreate( &lf, sizeof(lf), 0, 0, NULL );
}
static HFONT create_scaled_font( const LOGFONTW *deffont )
{
LOGFONTW lf;
static DWORD dpi;
if (!dpi)
{
dpi = get_dpi();
if (!dpi) dpi = 96;
}
lf = *deffont;
lf.lfHeight = MulDiv( lf.lfHeight, dpi, 96 );
return create_font( &lf );
}
static void set_gdi_shared(void)
{
#ifndef _WIN64
if (NtCurrentTeb()->GdiBatchCount)
{
TEB64 *teb64 = (TEB64 *)(UINT_PTR)NtCurrentTeb()->GdiBatchCount;
PEB64 *peb64 = (PEB64 *)(UINT_PTR)teb64->Peb;
peb64->GdiSharedHandleTable = (UINT_PTR)&gdi_shared;
return;
}
#endif
/* NOTE: Windows uses 32-bit for 32-bit kernel */
NtCurrentTeb()->Peb->GdiSharedHandleTable = &gdi_shared;
}
HGDIOBJ get_stock_object( INT obj )
{
assert( obj >= 0 && obj <= STOCK_LAST + 1 && obj != 9 );
switch (obj)
{
case OEM_FIXED_FONT:
if (get_system_dpi() != 96) obj = 9;
break;
case SYSTEM_FONT:
if (get_system_dpi() != 96) obj = STOCK_LAST + 2;
break;
case SYSTEM_FIXED_FONT:
if (get_system_dpi() != 96) obj = STOCK_LAST + 3;
break;
case DEFAULT_GUI_FONT:
if (get_system_dpi() != 96) obj = STOCK_LAST + 4;
break;
}
return entry_to_handle( handle_entry( ULongToHandle( obj + FIRST_GDI_HANDLE )));
}
static void init_stock_objects(void)
{
const struct DefaultFontInfo *deffonts;
unsigned int i;
HGDIOBJ obj;
/* Create stock objects in order matching stock object macros,
* so that they use predictable handle slots. Our GetStockObject
* depends on it. */
create_brush( &WhiteBrush );
create_brush( &LtGrayBrush );
create_brush( &GrayBrush );
create_brush( &DkGrayBrush );
create_brush( &BlackBrush );
create_brush( &NullBrush );
create_pen( PS_SOLID, 0, RGB(255,255,255) );
create_pen( PS_SOLID, 0, RGB(0,0,0) );
create_pen( PS_NULL, 0, RGB(0,0,0) );
/* slot 9 is not used for non-scaled stock objects */
create_scaled_font( &OEMFixedFont );
/* language-independent stock fonts */
create_font( &OEMFixedFont );
create_font( &AnsiFixedFont );
create_font( &AnsiVarFont );
/* language-dependent stock fonts */
deffonts = get_default_fonts(get_default_charset());
create_font( &deffonts->SystemFont );
create_font( &deffonts->DeviceDefaultFont );
PALETTE_Init();
create_font( &deffonts->SystemFixedFont );
create_font( &deffonts->DefaultGuiFont );
create_brush( &DCBrush );
NtGdiCreatePen( PS_SOLID, 0, RGB(0,0,0), NULL );
obj = NtGdiCreateBitmap( 1, 1, 1, 1, NULL );
assert( (HandleToULong( obj ) & 0xffff) == FIRST_GDI_HANDLE + DEFAULT_BITMAP );
create_scaled_font( &deffonts->SystemFont );
create_scaled_font( &deffonts->SystemFixedFont );
create_scaled_font( &deffonts->DefaultGuiFont );
/* clear the NOSYSTEM bit on all stock objects*/
for (i = 0; i < STOCK_LAST + 5; i++)
{
GDI_HANDLE_ENTRY *entry = &gdi_shared.Handles[FIRST_GDI_HANDLE + i];
entry_obj( entry )->system = TRUE;
entry->StockFlag = 1;
}
}
/***********************************************************************
* DllMain
*
* GDI initialization.
*/
BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
{
if (reason != DLL_PROCESS_ATTACH) return TRUE;
gdi32_module = inst;
DisableThreadLibraryCalls( inst );
set_gdi_shared();
font_init();
init_stock_objects();
return TRUE;
}
static const char *gdi_obj_type( unsigned type )
{
switch ( type )
{
case NTGDI_OBJ_PEN: return "NTGDI_OBJ_PEN";
case NTGDI_OBJ_BRUSH: return "NTGDI_OBJ_BRUSH";
case NTGDI_OBJ_DC: return "NTGDI_OBJ_DC";
case NTGDI_OBJ_METADC: return "NTGDI_OBJ_METADC";
case NTGDI_OBJ_PAL: return "NTGDI_OBJ_PAL";
case NTGDI_OBJ_FONT: return "NTGDI_OBJ_FONT";
case NTGDI_OBJ_BITMAP: return "NTGDI_OBJ_BITMAP";
case NTGDI_OBJ_REGION: return "NTGDI_OBJ_REGION";
case NTGDI_OBJ_METAFILE: return "NTGDI_OBJ_METAFILE";
case NTGDI_OBJ_MEMDC: return "NTGDI_OBJ_MEMDC";
case NTGDI_OBJ_EXTPEN: return "NTGDI_OBJ_EXTPEN";
case NTGDI_OBJ_ENHMETADC: return "NTGDI_OBJ_ENHMETADC";
case NTGDI_OBJ_ENHMETAFILE: return "NTGDI_OBJ_ENHMETAFILE";
default: return "UNKNOWN";
}
}
static void dump_gdi_objects( void )
{
GDI_HANDLE_ENTRY *entry;
TRACE( "%u objects:\n", GDI_MAX_HANDLE_COUNT );
EnterCriticalSection( &gdi_section );
for (entry = gdi_shared.Handles; entry < next_unused; entry++)
{
if (!entry->Type)
TRACE( "handle %p FREE\n", entry_to_handle( entry ));
else
TRACE( "handle %p obj %s type %s selcount %u deleted %u\n",
entry_to_handle( entry ), wine_dbgstr_longlong( entry->Object ),
gdi_obj_type( entry->ExtType << NTGDI_HANDLE_TYPE_SHIFT ),
entry_obj( entry )->selcount, entry_obj( entry )->deleted );
}
LeaveCriticalSection( &gdi_section );
}
/***********************************************************************
* alloc_gdi_handle
*
* Allocate a GDI handle for an object, which must have been allocated on the process heap.
*/
HGDIOBJ alloc_gdi_handle( struct gdi_obj_header *obj, DWORD type, const struct gdi_obj_funcs *funcs )
{
GDI_HANDLE_ENTRY *entry;
HGDIOBJ ret;
assert( type ); /* type 0 is reserved to mark free entries */
EnterCriticalSection( &gdi_section );
entry = next_free;
if (entry)
next_free = (GDI_HANDLE_ENTRY *)(UINT_PTR)entry->Object;
else if (next_unused < gdi_shared.Handles + GDI_MAX_HANDLE_COUNT)
entry = next_unused++;
else
{
LeaveCriticalSection( &gdi_section );
ERR( "out of GDI object handles, expect a crash\n" );
if (TRACE_ON(gdi)) dump_gdi_objects();
return 0;
}
obj->funcs = funcs;
obj->selcount = 0;
obj->system = 0;
obj->deleted = 0;
entry->Object = (UINT_PTR)obj;
entry->ExtType = type >> NTGDI_HANDLE_TYPE_SHIFT;
entry->Type = entry->ExtType & 0x1f;
if (++entry->Generation == 0xff) entry->Generation = 1;
ret = entry_to_handle( entry );
LeaveCriticalSection( &gdi_section );
TRACE( "allocated %s %p %u/%u\n", gdi_obj_type(type), ret,
InterlockedIncrement( &debug_count ), GDI_MAX_HANDLE_COUNT );
return ret;
}
/***********************************************************************
* free_gdi_handle
*
* Free a GDI handle and return a pointer to the object.
*/
void *free_gdi_handle( HGDIOBJ handle )
{
void *object = NULL;
GDI_HANDLE_ENTRY *entry;
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( handle )))
{
TRACE( "freed %s %p %u/%u\n", gdi_obj_type( entry->ExtType << NTGDI_HANDLE_TYPE_SHIFT ),
handle, InterlockedDecrement( &debug_count ) + 1, GDI_MAX_HANDLE_COUNT );
object = entry_obj( entry );
entry->Type = 0;
entry->Object = (UINT_PTR)next_free;
next_free = entry;
}
LeaveCriticalSection( &gdi_section );
return object;
}
DWORD get_gdi_object_type( HGDIOBJ obj )
{
GDI_HANDLE_ENTRY *entry = handle_entry( obj );
return entry ? entry->ExtType << NTGDI_HANDLE_TYPE_SHIFT : 0;
}
/***********************************************************************
* get_any_obj_ptr
*
* Return a pointer to, and the type of, the GDI object
* associated with the handle.
* The object must be released with GDI_ReleaseObj.
*/
void *get_any_obj_ptr( HGDIOBJ handle, DWORD *type )
{
void *ptr = NULL;
GDI_HANDLE_ENTRY *entry;
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( handle )))
{
ptr = entry_obj( entry );
*type = entry->ExtType << NTGDI_HANDLE_TYPE_SHIFT;
}
if (!ptr) LeaveCriticalSection( &gdi_section );
return ptr;
}
/***********************************************************************
* GDI_GetObjPtr
*
* Return a pointer to the GDI object associated with the handle.
* Return NULL if the object has the wrong type.
* The object must be released with GDI_ReleaseObj.
*/
void *GDI_GetObjPtr( HGDIOBJ handle, DWORD type )
{
DWORD ret_type;
void *ptr = get_any_obj_ptr( handle, &ret_type );
if (ptr && ret_type != type)
{
GDI_ReleaseObj( handle );
ptr = NULL;
}
return ptr;
}
/***********************************************************************
* GDI_ReleaseObj
*
*/
void GDI_ReleaseObj( HGDIOBJ handle )
{
LeaveCriticalSection( &gdi_section );
}
/***********************************************************************
* GDI_CheckNotLock
*/
void GDI_CheckNotLock(void)
{
if (RtlIsCriticalSectionLockedByThread(&gdi_section))
{
ERR( "BUG: holding GDI lock\n" );
DebugBreak();
}
}
/***********************************************************************
* NtGdiDeleteObjectApp (win32u.@)
*
* Delete a Gdi object.
*
* PARAMS
* obj [I] Gdi object to delete
*
* RETURNS
* Success: TRUE. If obj was not returned from GetStockObject(), any resources
* it consumed are released.
* Failure: FALSE, if obj is not a valid Gdi object, or is currently selected
* into a DC.
*/
BOOL WINAPI NtGdiDeleteObjectApp( HGDIOBJ obj )
{
GDI_HANDLE_ENTRY *entry;
const struct gdi_obj_funcs *funcs = NULL;
struct gdi_obj_header *header;
EnterCriticalSection( &gdi_section );
if (!(entry = handle_entry( obj )))
{
LeaveCriticalSection( &gdi_section );
return FALSE;
}
header = entry_obj( entry );
if (header->system)
{
TRACE("Preserving system object %p\n", obj);
LeaveCriticalSection( &gdi_section );
return TRUE;
}
obj = entry_to_handle( entry ); /* make it a full handle */
if (header->selcount)
{
TRACE("delayed for %p because object in use, count %u\n", obj, header->selcount );
header->deleted = 1; /* mark for delete */
}
else funcs = header->funcs;
LeaveCriticalSection( &gdi_section );
TRACE("%p\n", obj );
if (funcs && funcs->pDeleteObject) return funcs->pDeleteObject( obj );
return TRUE;
}
/***********************************************************************
* NtGdiCreateClientObj (win32u.@)
*/
HANDLE WINAPI NtGdiCreateClientObj( ULONG type )
{
struct gdi_obj_header *obj;
HGDIOBJ handle;
if (!(obj = HeapAlloc( GetProcessHeap(), 0, sizeof(*obj) )))
return 0;
handle = alloc_gdi_handle( obj, type, NULL );
if (!handle) HeapFree( GetProcessHeap(), 0, obj );
return handle;
}
/***********************************************************************
* NtGdiDeleteClientObj (win32u.@)
*/
BOOL WINAPI NtGdiDeleteClientObj( HGDIOBJ handle )
{
void *obj;
if (!(obj = free_gdi_handle( handle ))) return FALSE;
HeapFree( GetProcessHeap(), 0, obj );
return TRUE;
}
/***********************************************************************
* NtGdiExtGetObjectW (win32u.@)
*/
INT WINAPI NtGdiExtGetObjectW( HGDIOBJ handle, INT count, void *buffer )
{
GDI_HANDLE_ENTRY *entry;
const struct gdi_obj_funcs *funcs = NULL;
INT result = 0;
TRACE("%p %d %p\n", handle, count, buffer );
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( handle )))
{
funcs = entry_obj( entry )->funcs;
handle = entry_to_handle( entry ); /* make it a full handle */
}
LeaveCriticalSection( &gdi_section );
if (funcs && funcs->pGetObjectW)
{
if (buffer && ((ULONG_PTR)buffer >> 16) == 0) /* catch apps getting argument order wrong */
SetLastError( ERROR_NOACCESS );
else
result = funcs->pGetObjectW( handle, count, buffer );
}
return result;
}
/***********************************************************************
* NtGdiGetDCObject (win32u.@)
*
* Get the currently selected object of a given type in a device context.
*/
HANDLE WINAPI NtGdiGetDCObject( HDC hdc, UINT type )
{
HGDIOBJ ret = 0;
DC *dc;
if (!(dc = get_dc_ptr( hdc ))) return 0;
switch (type)
{
case NTGDI_OBJ_EXTPEN: /* fall through */
case NTGDI_OBJ_PEN: ret = dc->hPen; break;
case NTGDI_OBJ_BRUSH: ret = dc->hBrush; break;
case NTGDI_OBJ_PAL: ret = dc->hPalette; break;
case NTGDI_OBJ_FONT: ret = dc->hFont; break;
case NTGDI_OBJ_SURF: ret = dc->hBitmap; break;
default:
FIXME( "(%p, %d): unknown type.\n", hdc, type );
break;
}
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* NtGdiUnrealizeObject (win32u.@)
*/
BOOL WINAPI NtGdiUnrealizeObject( HGDIOBJ obj )
{
const struct gdi_obj_funcs *funcs = NULL;
GDI_HANDLE_ENTRY *entry;
EnterCriticalSection( &gdi_section );
if ((entry = handle_entry( obj )))
{
funcs = entry_obj( entry )->funcs;
obj = entry_to_handle( entry ); /* make it a full handle */
}
LeaveCriticalSection( &gdi_section );
if (funcs && funcs->pUnrealizeObject) return funcs->pUnrealizeObject( obj );
return funcs != NULL;
}
/***********************************************************************
* NtGdiFlush (win32u.@)
*/
BOOL WINAPI NtGdiFlush(void)
{
return TRUE; /* FIXME */
}
/*******************************************************************
* NtGdiGetColorAdjustment (win32u.@)
*/
BOOL WINAPI NtGdiGetColorAdjustment( HDC hdc, COLORADJUSTMENT *ca )
{
FIXME( "stub\n" );
return FALSE;
}
/*******************************************************************
* NtGdiSetColorAdjustment (win32u.@)
*/
BOOL WINAPI NtGdiSetColorAdjustment( HDC hdc, const COLORADJUSTMENT *ca )
{
FIXME( "stub\n" );
return FALSE;
}
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