source: trunk/src/gdi32/initgdi32.cpp@ 21649

Last change on this file since 21649 was 21649, checked in by dmik, 14 years ago

general: Exit gracefully instead of crashing if KERNEL32.DLL initialization fails. Note that "gracefully" means "silently" in this case since it seems that the only way how the OS/2 loader reports a failure to initialize a required DLL for a started EXE is by returning a non-zero exit code.
File size: 4.8 KB
Line 
1/* $Id: initgdi32.cpp,v 1.16 2004-01-11 11:42:17 sandervl Exp $
2 *
3 * DLL entry point
4 *
5 * Copyright 1998 Sander van Leeuwen
6 * Copyright 1998 Peter Fitzsimmons
7 *
8 *
9 * Project Odin Software License can be found in LICENSE.TXT
10 *
11 */
12
13/*-------------------------------------------------------------*/
14/* INITERM.C -- Source for a custom dynamic link library */
15/* initialization and termination (_DLL_InitTerm) */
16/* function. */
17/* */
18/* When called to perform initialization, this sample function */
19/* gets storage for an array of integers, and initializes its */
20/* elements with random integers. At termination time, it */
21/* frees the array. Substitute your own special processing. */
22/*-------------------------------------------------------------*/
23
24
25/* Include files */
26#define INCL_DOSMODULEMGR
27#define INCL_DOSPROCESS
28#define INCL_GPI
29#include <os2wrap.h> //Odin32 OS/2 api wrappers
30#include <stdlib.h>
31#include <stdio.h>
32#include <string.h>
33#include <odin.h>
34#include <win32api.h>
35#include <winconst.h>
36#include <odinlx.h>
37#include <cpuhlp.h>
38#include <dbglog.h>
39#include "region.h"
40#include <initdll.h>
41#include <stats.h>
42#include "dibsect.h"
43#include "rgbcvt.h"
44
45#define DBG_LOCALLOG DBG_initterm
46#include "dbglocal.h"
47
48extern "C" {
49 //Win32 resource table (produced by wrc)
50 extern DWORD gdi32_PEResTab;
51}
52
53static HMODULE dllHandle = 0;
54void (_Optlink *pRGB555to565)(WORD *dest, WORD *src, ULONG num) = NULL;
55void (_Optlink *pRGB565to555)(WORD *dest, WORD *src, ULONG num) = NULL;
56
57//******************************************************************************
58//******************************************************************************
59BOOL WINAPI GdiLibMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
60{
61 switch (fdwReason)
62 {
63 case DLL_PROCESS_ATTACH:
64 return TRUE;
65
66 case DLL_THREAD_ATTACH:
67 case DLL_THREAD_DETACH:
68 return TRUE;
69
70 case DLL_PROCESS_DETACH:
71 STATS_DumpStatsGDI32();
72 return TRUE;
73 }
74 return FALSE;
75}
76/****************************************************************************/
77/* _DLL_InitTerm is the function that gets called by the operating system */
78/* loader when it loads and frees this DLL for each process that accesses */
79/* this DLL. However, it only gets called the first time the DLL is loaded */
80/* and the last time it is freed for a particular process. The system */
81/* linkage convention MUST be used because the operating system loader is */
82/* calling this function. */
83/****************************************************************************/
84ULONG APIENTRY inittermGdi32(ULONG hModule, ULONG ulFlag)
85{
86 size_t i;
87 APIRET rc;
88
89 /*-------------------------------------------------------------------------*/
90 /* If ulFlag is zero then the DLL is being loaded so initialization should */
91 /* be performed. If ulFlag is 1 then the DLL is being freed so */
92 /* termination should be performed. */
93 /*-------------------------------------------------------------------------*/
94
95 switch (ulFlag) {
96 case 0 :
97 STATS_InitializeGDI32 ();
98
99 ParseLogStatusGDI32();
100
101 if (InitializeKernel32() == 0)
102 return 0;
103
104 CheckVersionFromHMOD(PE2LX_VERSION, hModule); /*PLF Wed 98-03-18 05:28:48*/
105 if(InitRegionSpace() == FALSE) {
106 return 0UL;
107 }
108 DIBSection::initDIBSection();
109 if(CPUFeatures & CPUID_MMX) {
110 pRGB555to565 = RGB555to565MMX;
111 pRGB565to555 = RGB565to555MMX;
112 }
113 else {
114 pRGB555to565 = RGB555to565;
115 pRGB565to555 = RGB565to555;
116 }
117 dllHandle = RegisterLxDll(hModule, GdiLibMain, (PVOID)&gdi32_PEResTab,
118 GDI32_MAJORIMAGE_VERSION, GDI32_MINORIMAGE_VERSION,
119 IMAGE_SUBSYSTEM_NATIVE);
120 if(dllHandle == 0)
121 return 0UL;
122
123 dprintf(("gdi32 init %s %s (%x)", __DATE__, __TIME__, inittermGdi32));
124
125 RasEntry (RAS_EVENT_Gdi32InitComplete, &dllHandle, sizeof (dllHandle));
126
127 break;
128 case 1 :
129 if(dllHandle) {
130 DestroyRegionSpace();
131 UnregisterLxDll(dllHandle);
132 }
133 STATS_UninitializeGDI32 ();
134 break;
135 default :
136 return 0UL;
137 }
138
139 /***********************************************************/
140 /* A non-zero value must be returned to indicate success. */
141 /***********************************************************/
142 return 1UL;
143}
144//******************************************************************************
145//******************************************************************************
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