| 1 | /* Copyright (c) 2001, Stanford University
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| 2 | * All rights reserved
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| 3 | *
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| 4 | * See the file LICENSE.txt for information on redistributing this software.
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| 5 | */
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| 6 |
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| 7 | #include "cr_mem.h"
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| 8 | #include "cr_string.h"
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| 9 | #include "cr_dll.h"
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| 10 | #include "cr_error.h"
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| 11 | #include "cr_spu.h"
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| 12 |
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| 13 |
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| 14 | #include <iprt/param.h>
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| 15 | #include <iprt/string.h>
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| 16 | #include <iprt/path.h>
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| 17 |
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| 18 | #include <stdio.h>
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| 19 |
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| 20 | #ifdef WINDOWS
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| 21 | #ifdef VBOX_WDDM_WOW64
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| 22 | #define DLL_SUFFIX "-x86.dll"
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| 23 | #else
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| 24 | #define DLL_SUFFIX ".dll"
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| 25 | #endif
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| 26 | #define DLL_PREFIX "VBoxOGL"
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| 27 | #define snprintf _snprintf
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| 28 | #elif defined(DARWIN)
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| 29 | #define DLL_SUFFIX ".dylib"
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| 30 | #define DLL_PREFIX "VBoxOGL"
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| 31 | /*
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| 32 | #define DLL_SUFFIX ".bundle"
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| 33 | #define DLL_PREFIX ""
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| 34 | */
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| 35 | #else
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| 36 | #ifdef AIX
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| 37 | #define DLL_SUFFIX ".o"
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| 38 | #define DLL_PREFIX "VBoxOGL"
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| 39 | #else
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| 40 | #define DLL_SUFFIX ".so"
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| 41 | #define DLL_PREFIX "VBoxOGL"
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| 42 | #endif
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| 43 | #endif
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| 44 |
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| 45 | extern void __buildDispatch( SPU *spu );
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| 46 |
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| 47 | static char *__findDLL( char *name, char *dir )
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| 48 | {
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| 49 | static char path[8092];
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| 50 |
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| 51 | if (!dir)
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| 52 | {
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| 53 | #if defined(DARWIN)
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| 54 | char szSharedLibPath[8092];
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| 55 | int rc = RTPathAppPrivateArch (szSharedLibPath, sizeof(szSharedLibPath));
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| 56 | if (RT_SUCCESS(rc))
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| 57 | sprintf ( path, "%s/%s%sspu%s", szSharedLibPath, DLL_PREFIX, name, DLL_SUFFIX );
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| 58 | else
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| 59 | #endif /* DARWIN */
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| 60 | #ifdef VBOX
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| 61 | snprintf ( path, sizeof(path), "%s%sspu%s", DLL_PREFIX, name, DLL_SUFFIX );
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| 62 | #else
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| 63 | sprintf ( path, "%s%sspu%s", DLL_PREFIX, name, DLL_SUFFIX );
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| 64 | #endif
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| 65 | }
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| 66 | else
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| 67 | {
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| 68 | #ifdef VBOX
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| 69 | snprintf ( path, sizeof(path), "%s/%s%sspu%s", dir, DLL_PREFIX, name, DLL_SUFFIX );
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| 70 | #else
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| 71 | sprintf ( path, "%s/%s%sspu%s", dir, DLL_PREFIX, name, DLL_SUFFIX );
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| 72 | #endif
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| 73 | }
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| 74 | return path;
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| 75 | }
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| 76 |
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| 77 | /**
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| 78 | * Load a single SPU from disk and initialize it. Is there any reason
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| 79 | * to export this from the SPU loader library? */
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| 80 |
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| 81 | SPU * crSPULoad( SPU *child, int id, char *name, char *dir, void *server )
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| 82 | {
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| 83 | SPU *the_spu;
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| 84 | char *path;
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| 85 | bool fNeedSuperSPU = false;
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| 86 |
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| 87 | CRASSERT( name != NULL );
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| 88 |
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| 89 | the_spu = (SPU*)crAlloc( sizeof( *the_spu ) );
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| 90 | /* ensure all fields are initially zero,
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| 91 | * NOTE: what actually MUST be zero at this point is the_spu->superSPU, otherwise
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| 92 | * crSPUUnloadChain in the failure branches below will misbehave */
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| 93 | crMemset(the_spu, 0, sizeof (*the_spu));
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| 94 | the_spu->id = id;
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| 95 | the_spu->privatePtr = NULL;
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| 96 | path = __findDLL( name, dir );
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| 97 | the_spu->dll = crDLLOpen( path, 0/*resolveGlobal*/ );
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| 98 | if (the_spu->dll == NULL)
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| 99 | {
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| 100 | crError("Couldn't load the DLL \"%s\"!\n", path);
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| 101 | crFree(the_spu);
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| 102 | return NULL;
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| 103 | }
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| 104 | #if defined(DEBUG_misha) && defined(RT_OS_WINDOWS)
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| 105 | crDbgCmdSymLoadPrint(path, the_spu->dll->hinstLib);
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| 106 | #endif
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| 107 | the_spu->entry_point =
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| 108 | (SPULoadFunction) crDLLGetNoError( the_spu->dll, SPU_ENTRY_POINT_NAME );
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| 109 | if (!the_spu->entry_point)
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| 110 | {
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| 111 | crError( "Couldn't load the SPU entry point \"%s\" from SPU \"%s\"!",
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| 112 | SPU_ENTRY_POINT_NAME, name );
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| 113 | crSPUUnloadChain(the_spu);
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| 114 | return NULL;
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| 115 | }
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| 116 |
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| 117 | /* This basically calls the SPU's SPULoad() function */
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| 118 | if (!the_spu->entry_point( &(the_spu->name), &(the_spu->super_name),
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| 119 | &(the_spu->init), &(the_spu->self),
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| 120 | &(the_spu->cleanup),
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| 121 | &(the_spu->spu_flags)) )
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| 122 | {
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| 123 | crError( "I found the SPU \"%s\", but loading it failed!", name );
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| 124 | crSPUUnloadChain(the_spu);
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| 125 | return NULL;
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| 126 | }
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| 127 | #ifdef IN_GUEST
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| 128 | if (crStrcmp(the_spu->name,"error"))
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| 129 | {
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| 130 | /* the default super/base class for an SPU is the error SPU */
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| 131 | if (the_spu->super_name == NULL)
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| 132 | {
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| 133 | the_spu->super_name = "error";
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| 134 | }
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| 135 | the_spu->superSPU = crSPULoad( child, id, the_spu->super_name, dir, server );
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| 136 | fNeedSuperSPU = true;
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| 137 | }
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| 138 | #else
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| 139 | if (crStrcmp(the_spu->name,"hosterror"))
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| 140 | {
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| 141 | /* the default super/base class for an SPU is the error SPU */
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| 142 | if (the_spu->super_name == NULL)
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| 143 | {
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| 144 | the_spu->super_name = "hosterror";
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| 145 | }
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| 146 | the_spu->superSPU = crSPULoad( child, id, the_spu->super_name, dir, server );
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| 147 | fNeedSuperSPU = true;
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| 148 | }
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| 149 | #endif
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| 150 | else
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| 151 | {
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| 152 | the_spu->superSPU = NULL;
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| 153 | }
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| 154 | if (fNeedSuperSPU && !the_spu->superSPU)
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| 155 | {
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| 156 | crError( "Unable to load super SPU \"%s\" of \"%s\"!", the_spu->super_name, name );
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| 157 | crSPUUnloadChain(the_spu);
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| 158 | return NULL;
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| 159 | }
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| 160 | crDebug("Initializing %s SPU", name);
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| 161 | the_spu->function_table = the_spu->init( id, child, the_spu, 0, 1 );
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| 162 | if (!the_spu->function_table) {
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| 163 | crDebug("Failed to init %s SPU", name);
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| 164 | crSPUUnloadChain(the_spu);
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| 165 | return NULL;
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| 166 | }
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| 167 | __buildDispatch( the_spu );
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| 168 | /*crDebug( "initializing dispatch table %p (for SPU %s)", (void*)&(the_spu->dispatch_table), name );*/
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| 169 | crSPUInitDispatchTable( &(the_spu->dispatch_table) );
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| 170 | /*crDebug( "Done initializing the dispatch table for SPU %s, calling the self function", name );*/
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| 171 |
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| 172 | the_spu->dispatch_table.server = server;
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| 173 | the_spu->self( &(the_spu->dispatch_table) );
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| 174 | /*crDebug( "Done with the self function" );*/
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| 175 |
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| 176 | return the_spu;
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| 177 | }
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| 178 |
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| 179 | /**
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| 180 | * Load the entire chain of SPUs and initialize all of them.
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| 181 | * This function returns the first one in the chain.
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| 182 | */
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| 183 | SPU *
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| 184 | crSPULoadChain( int count, int *ids, char **names, char *dir, void *server )
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| 185 | {
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| 186 | int i;
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| 187 | SPU *child_spu = NULL;
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| 188 | CRASSERT( count > 0 );
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| 189 |
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| 190 | for (i = count-1 ; i >= 0 ; i--)
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| 191 | {
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| 192 | int spu_id = ids[i];
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| 193 | char *spu_name = names[i];
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| 194 | SPU *the_spu, *temp;
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| 195 |
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| 196 | /* This call passes the previous version of spu, which is the SPU's
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| 197 | * "child" in this chain. */
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| 198 |
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| 199 | the_spu = crSPULoad( child_spu, spu_id, spu_name, dir, server );
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| 200 | if (!the_spu) {
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| 201 | return NULL;
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| 202 | }
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| 203 |
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| 204 | if (child_spu != NULL)
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| 205 | {
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| 206 | /* keep track of this so that people can pass functions through but
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| 207 | * still get updated when API's change on the fly. */
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| 208 | for (temp = the_spu ; temp ; temp = temp->superSPU )
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| 209 | {
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| 210 | struct _copy_list_node *node = (struct _copy_list_node *) crAlloc( sizeof( *node ) );
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| 211 | node->copy = &(temp->dispatch_table);
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| 212 | node->next = child_spu->dispatch_table.copyList;
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| 213 | child_spu->dispatch_table.copyList = node;
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| 214 | }
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| 215 | }
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| 216 | child_spu = the_spu;
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| 217 | }
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| 218 | return child_spu;
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| 219 | }
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| 220 |
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| 221 |
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| 222 | /**
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| 223 | * Returns the SPU registration record for the given name.
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| 224 | *
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| 225 | * @returns Pointer to the SPU registration record on success or NULL if not found.
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| 226 | * @param pszName The name to look for.
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| 227 | * @param papSpuReg Pointer to the NULL terminated array of builtin SPU registration record pointers.
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| 228 | */
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| 229 | PCSPUREG crSPUGetRegFromName(const char *pszName, PCSPUREG *papSpuReg)
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| 230 | {
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| 231 | while (*papSpuReg)
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| 232 | {
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| 233 | if (!RTStrCmp(pszName, (*papSpuReg)->pszName))
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| 234 | return *papSpuReg;
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| 235 | papSpuReg++;
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| 236 | }
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| 237 |
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| 238 | return NULL;
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| 239 | }
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| 240 |
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| 241 |
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| 242 | /**
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| 243 | * Creates a SPU chain from the given SPU registration structure (VBox only).
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| 244 | *
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| 245 | * @returns Pointer to the SPU head in the chain on success.
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| 246 | * @param pSpuChild Pointer to the child SPU if any.
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| 247 | * @param iId ID to assign to the head SPU.
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| 248 | * @param pszName Name of the SPU to initialize.
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| 249 | * @param pvServer The server owning the SPU chain.
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| 250 | * @param papSpuReg Pointer to the NULL terminated array of builtin SPU registration record pointers.
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| 251 | */
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| 252 | SPU * crSPUInitFromReg(SPU *pSpuChild, int iId, const char *pszName, void *pvServer, PCSPUREG *papSpuReg)
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| 253 | {
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| 254 | SPU *pSpu;
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| 255 | bool fNeedSuperSPU = false;
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| 256 | PCSPUREG pSpuReg = crSPUGetRegFromName(pszName, papSpuReg);
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| 257 | AssertPtrReturn(pSpuReg, NULL);
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| 258 |
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| 259 | pSpu = (SPU*)crAlloc(sizeof(*pSpu));
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| 260 | crMemset(pSpu, 0, sizeof (*pSpu));
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| 261 | pSpu->id = iId;
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| 262 | pSpu->privatePtr = NULL;
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| 263 |
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| 264 | /* Init the SPU structure from the SPU registration record. */
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| 265 | pSpu->name = (char *)pSpuReg->pszName;
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| 266 | pSpu->super_name = (char *)pSpuReg->pszSuperName;
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| 267 | pSpu->init = pSpuReg->pfnInit;
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| 268 | pSpu->self = pSpuReg->pfnDispatch;
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| 269 | pSpu->cleanup = pSpuReg->pfnCleanup;
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| 270 | pSpu->spu_flags = pSpuReg->fFlags;
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| 271 |
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| 272 | #ifdef IN_GUEST
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| 273 | if (crStrcmp(pSpu->name,"error"))
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| 274 | {
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| 275 | /* the default super/base class for an SPU is the error SPU */
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| 276 | if (pSpu->super_name == NULL)
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| 277 | pSpu->super_name = "error";
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| 278 |
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| 279 | pSpu->superSPU = crSPUInitFromReg(pSpuChild, iId, pSpu->super_name, pvServer, papSpuReg);
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| 280 | fNeedSuperSPU = true;
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| 281 | }
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| 282 | #else
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| 283 | if (crStrcmp(pSpu->name,"hosterror"))
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| 284 | {
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| 285 | /* the default super/base class for an SPU is the error SPU */
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| 286 | if (pSpu->super_name == NULL)
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| 287 | pSpu->super_name = "hosterror";
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| 288 |
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| 289 | pSpu->superSPU = crSPUInitFromReg(pSpuChild, iId, pSpu->super_name, pvServer, papSpuReg);
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| 290 | fNeedSuperSPU = true;
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| 291 | }
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| 292 | #endif
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| 293 | else
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| 294 | pSpu->superSPU = NULL;
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| 295 |
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| 296 | if (fNeedSuperSPU && !pSpu->superSPU)
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| 297 | {
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| 298 | crError( "Unable to load super SPU \"%s\" of \"%s\"!", pSpu->super_name, pSpuReg->pszName);
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| 299 | crSPUUnloadChain(pSpu);
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| 300 | return NULL;
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| 301 | }
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| 302 | crDebug("Initializing %s SPU", pSpuReg->pszName);
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| 303 | pSpu->function_table = pSpu->init(iId, pSpuChild, pSpu, 0, 1);
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| 304 | if (!pSpu->function_table) {
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| 305 | crDebug("Failed to init %s SPU", pSpuReg->pszName);
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| 306 | crSPUUnloadChain(pSpu);
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| 307 | return NULL;
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| 308 | }
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| 309 | __buildDispatch( pSpu );
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| 310 | /*crDebug( "initializing dispatch table %p (for SPU %s)", (void*)&(pSpu->dispatch_table), name );*/
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| 311 | crSPUInitDispatchTable( &(pSpu->dispatch_table) );
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| 312 | /*crDebug( "Done initializing the dispatch table for SPU %s, calling the self function", name );*/
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| 313 |
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| 314 | pSpu->dispatch_table.server = pvServer;
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| 315 | pSpu->self( &(pSpu->dispatch_table) );
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| 316 | /*crDebug( "Done with the self function" );*/
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| 317 |
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| 318 | return pSpu;
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| 319 | }
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| 320 |
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| 321 |
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| 322 | /**
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| 323 | * Initializes a give nchain of SPUs from the builtin SPU registration descriptors (VBox only).
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| 324 | *
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| 325 | * @returns Pointer to the Head SPU on success or NULL on failure.
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| 326 | * @param cSpus The number of SPUs to initialize.
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| 327 | * @param paIds Pointer to the array of IDs.
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| 328 | * @param papszNames Pointer to the array of SPU names to initalize.
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| 329 | * @param pvServer The server owning the SPU chain.
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| 330 | * @param papSpuReg Pointer to the NULL terminated array of builtin SPU registration record pointers.
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| 331 | */
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| 332 | SPU *crSPUInitChainFromReg(int cSpus, int *paIds, const char * const *papszNames, void *pvServer, PCSPUREG *papSpuReg)
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| 333 | {
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| 334 | int i = 0;
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| 335 | SPU *pSpuChild = NULL;
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| 336 | CRASSERT( cSpus > 0 );
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| 337 |
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| 338 | for (i = cSpus - 1; i >= 0; i--)
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| 339 | {
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| 340 | int idSpu = paIds[i];
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| 341 | const char *pszSpuName = papszNames[i];
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| 342 |
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| 343 | /*
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| 344 | * This call passes the previous version of spu, which is the SPU's
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| 345 | * "child" in this chain.
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| 346 | */
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| 347 | SPU *pSpu = crSPUInitFromReg( pSpuChild, idSpu, pszSpuName, pvServer, papSpuReg);
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| 348 | if (!pSpu)
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| 349 | return NULL; /** @todo Proper rollback. */
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| 350 |
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| 351 | if (pSpuChild != NULL)
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| 352 | {
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| 353 | SPU *pTmp;
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| 354 |
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| 355 | /* keep track of this so that people can pass functions through but
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| 356 | * still get updated when API's change on the fly. */
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| 357 | for (pTmp = pSpu ; pTmp ; pTmp = pTmp->superSPU )
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| 358 | {
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| 359 | struct _copy_list_node *node = (struct _copy_list_node *) crAlloc( sizeof( *node ) );
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| 360 | node->copy = &(pTmp->dispatch_table);
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| 361 | node->next = pSpuChild->dispatch_table.copyList;
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| 362 | pSpuChild->dispatch_table.copyList = node;
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| 363 | }
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| 364 | }
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| 365 | pSpuChild = pSpu;
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| 366 | }
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| 367 |
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| 368 | return pSpuChild;
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| 369 | }
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| 370 |
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| 371 |
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| 372 | #if 00
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| 373 | /* XXXX experimental code - not used at this time */
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| 374 | /**
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| 375 | * Like crSPUChangeInterface(), but don't loop over all functions in
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| 376 | * the table to search for 'old_func'.
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| 377 | */
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| 378 | void
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| 379 | crSPUChangeFunction(SPUDispatchTable *table, unsigned int funcOffset,
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| 380 | void *newFunc)
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| 381 | {
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| 382 | SPUGenericFunction *f = (SPUGenericFunction *) table + funcOffset;
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| 383 | struct _copy_list_node *temp;
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| 384 |
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| 385 | CRASSERT(funcOffset < sizeof(*table) / sizeof(SPUGenericFunction));
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| 386 |
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| 387 | printf("%s\n", __FUNCTION__);
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| 388 | if (table->mark == 1)
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| 389 | return;
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| 390 | table->mark = 1;
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| 391 | *f = newFunc;
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| 392 |
|
|---|
| 393 | /* update all copies of this table */
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| 394 | #if 1
|
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| 395 | for (temp = table->copyList ; temp ; temp = temp->next)
|
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| 396 | {
|
|---|
| 397 | crSPUChangeFunction( temp->copy, funcOffset, newFunc );
|
|---|
| 398 | }
|
|---|
| 399 | #endif
|
|---|
| 400 | if (table->copy_of != NULL)
|
|---|
| 401 | {
|
|---|
| 402 | crSPUChangeFunction( table->copy_of, funcOffset, newFunc );
|
|---|
| 403 | }
|
|---|
| 404 | #if 0
|
|---|
| 405 | for (temp = table->copyList ; temp ; temp = temp->next)
|
|---|
| 406 | {
|
|---|
| 407 | crSPUChangeFunction( temp->copy, funcOffset, newFunc );
|
|---|
| 408 | }
|
|---|
| 409 | #endif
|
|---|
| 410 | table->mark = 0;
|
|---|
| 411 | }
|
|---|
| 412 | #endif
|
|---|
| 413 |
|
|---|
| 414 |
|
|---|
| 415 |
|
|---|
| 416 | /**
|
|---|
| 417 | * Call the cleanup() function for each SPU in a chain, close the SPU
|
|---|
| 418 | * DLLs and free the SPU objects.
|
|---|
| 419 | * \param headSPU pointer to the first SPU in the chain
|
|---|
| 420 | */
|
|---|
| 421 | void
|
|---|
| 422 | crSPUUnloadChain(SPU *headSPU)
|
|---|
| 423 | {
|
|---|
| 424 | SPU *the_spu = headSPU, *next_spu;
|
|---|
| 425 |
|
|---|
| 426 | while (the_spu)
|
|---|
| 427 | {
|
|---|
| 428 | crDebug("Cleaning up SPU %s", the_spu->name);
|
|---|
| 429 |
|
|---|
| 430 | if (the_spu->cleanup)
|
|---|
| 431 | the_spu->cleanup();
|
|---|
| 432 |
|
|---|
| 433 | next_spu = the_spu->superSPU;
|
|---|
| 434 | if (the_spu->dll != NULL)
|
|---|
| 435 | crDLLClose(the_spu->dll);
|
|---|
| 436 | crFree(the_spu);
|
|---|
| 437 | the_spu = next_spu;
|
|---|
| 438 | }
|
|---|
| 439 | }
|
|---|
