113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
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#include <windows.h>
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#include <assert.h>
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#include <stdlib.h>
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#include "board/aime-dll.h"
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#include "util/dll-bind.h"
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#include "util/dprintf.h"
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const struct dll_bind_sym aime_dll_syms[] = {
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{
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.sym = "aime_io_init",
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.off = offsetof(struct aime_dll, init),
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}, {
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.sym = "aime_io_nfc_poll",
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.off = offsetof(struct aime_dll, nfc_poll),
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}, {
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.sym = "aime_io_nfc_get_aime_id",
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.off = offsetof(struct aime_dll, nfc_get_aime_id),
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}, {
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.sym = "aime_io_nfc_get_felica_id",
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.off = offsetof(struct aime_dll, nfc_get_felica_id),
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}, {
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.sym = "aime_io_led_set_color",
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.off = offsetof(struct aime_dll, led_set_color),
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}
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};
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struct aime_dll aime_dll;
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// Copypasta DLL binding and diagnostic message boilerplate.
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// Not much of this lends itself to being easily factored out. Also there
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// will be a lot of API-specific branching code here eventually as new API
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// versions get defined, so even though these functions all look the same
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// now this won't remain the case forever.
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HRESULT aime_dll_init(const struct aime_dll_config *cfg, HINSTANCE self)
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{
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uint16_t (*get_api_version)(void);
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const struct dll_bind_sym *sym;
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HINSTANCE owned;
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HINSTANCE src;
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HRESULT hr;
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assert(cfg != NULL);
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assert(self != NULL);
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if (cfg->path[0] != L'\0') {
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owned = LoadLibraryW(cfg->path);
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if (owned == NULL) {
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hr = HRESULT_FROM_WIN32(GetLastError());
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dprintf("NFC Assembly: Failed to load IO DLL: %lx: %S\n",
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hr,
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cfg->path);
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goto end;
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}
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dprintf("NFC Assembly: Using custom IO DLL: %S\n", cfg->path);
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src = owned;
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} else {
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owned = NULL;
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src = self;
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}
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get_api_version = (void *) GetProcAddress(src, "aime_io_get_api_version");
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if (get_api_version != NULL) {
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aime_dll.api_version = get_api_version();
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} else {
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aime_dll.api_version = 0x0100;
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dprintf("Custom IO DLL does not expose aime_io_get_api_version, "
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"assuming API version 1.0.\n"
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"Please ask the developer to update their DLL.\n");
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}
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if (aime_dll.api_version >= 0x0200) {
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hr = E_NOTIMPL;
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dprintf("NFC Assembly: Custom IO DLL implements an unsupported "
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"API version (%#04x). Please update Segatools.\n",
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aime_dll.api_version);
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goto end;
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}
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sym = aime_dll_syms;
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hr = dll_bind(&aime_dll, src, &sym, _countof(aime_dll_syms));
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if (FAILED(hr)) {
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if (src != self) {
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dprintf("NFC Assembly: Custom IO DLL does not provide function "
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"\"%s\". Please contact your IO DLL's developer for "
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"further assistance.\n",
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sym->sym);
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goto end;
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} else {
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dprintf("Internal error: could not reflect \"%s\"\n", sym->sym);
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}
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}
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owned = NULL;
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end:
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if (owned != NULL) {
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FreeLibrary(owned);
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}
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return hr;
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}
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