segatools/platform/amvideo.c

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#include <windows.h>
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include "hook/table.h"
#include "hooklib/dll.h"
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#include "hooklib/reg.h"
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#include "platform/amvideo.h"
#include "util/dprintf.h"
/* Hook functions */
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static HRESULT amvideo_reg_read_name(void *bytes, uint32_t *nbytes);
static HRESULT amvideo_reg_read_port_X(void *bytes, uint32_t *nbytes);
static HRESULT amvideo_reg_read_resolution_1(void *bytes, uint32_t *nbytes);
static HRESULT amvideo_reg_read_setting(void *bytes, uint32_t *nbytes);
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static HRESULT amvideo_reg_read_use_segatiming(void *bytes, uint32_t *nbytes);
static const wchar_t amvideo_dll_name[] = L"$amvideo";
static const struct reg_hook_val amvideo_reg_vals[] = {
{
.name = L"name",
.read = amvideo_reg_read_name,
.type = REG_SZ,
}
};
static const struct reg_hook_val amvideo_reg_mode_vals[] = {
{
.name = L"monitor_setting_1",
.read = amvideo_reg_read_setting,
.type = REG_SZ,
}, {
.name = L"monitor_setting_2",
.read = amvideo_reg_read_setting,
.type = REG_SZ,
}, {
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.name = L"port_1",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"port_2",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"port_3",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"port_4",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"port_5",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"port_6",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"port_7",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"port_8",
.read = amvideo_reg_read_port_X,
.type = REG_DWORD
}, {
.name = L"resolution_1",
.read = amvideo_reg_read_resolution_1,
.type = REG_SZ,
}, {
.name = L"use_segatiming",
.read = amvideo_reg_read_use_segatiming,
.type = REG_DWORD,
}
};
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HRESULT amvideo_hook_init(const struct amvideo_config *cfg, HMODULE redir_mod)
{
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HRESULT hr;
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assert(cfg != NULL);
if (!cfg->enable) {
return S_FALSE;
}
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hr = reg_hook_push_key(
HKEY_LOCAL_MACHINE,
L"SYSTEM\\SEGA\\SystemProperty\\amVideo",
amvideo_reg_vals,
_countof(amvideo_reg_vals));
if (FAILED(hr)) {
return hr;
}
hr = reg_hook_push_key(
HKEY_LOCAL_MACHINE,
L"SYSTEM\\SEGA\\SystemProperty\\sgsetdisplaysetting\\CurrentSetting",
amvideo_reg_mode_vals,
_countof(amvideo_reg_mode_vals));
if (FAILED(hr)) {
return hr;
}
hr = dll_hook_push(redir_mod, amvideo_dll_name);
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if (FAILED(hr)) {
return hr;
}
return S_OK;
}
int amDllVideoOpen(void *ctx)
{
dprintf("AmVideo: %s\n", __func__);
return 0;
}
int amDllVideoClose(void *ctx)
{
dprintf("AmVideo: %s\n", __func__);
return 0;
}
int amDllVideoSetResolution(void *ctx, void *param)
{
dprintf("AmVideo: %s\n", __func__);
return 0;
}
int amDllVideoGetVBiosVersion(void *ctx, char *dest, size_t nchars)
{
dprintf("AmVideo: %s\n", __func__);
strcpy(dest, "01.02.03.04.05");
return 0;
}
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static HRESULT amvideo_reg_read_name(void *bytes, uint32_t *nbytes)
{
return reg_hook_read_wstr(bytes, nbytes, amvideo_dll_name);
}
static HRESULT amvideo_reg_read_port_X(void *bytes, uint32_t *nbytes)
{
return reg_hook_read_u32(bytes, nbytes, 1);
}
static HRESULT amvideo_reg_read_resolution_1(void *bytes, uint32_t *nbytes)
{
return reg_hook_read_wstr(bytes, nbytes, L"1920x1080");
}
static HRESULT amvideo_reg_read_setting(void *bytes, uint32_t *nbytes)
{
return reg_hook_read_wstr(bytes, nbytes, L"0");
}
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static HRESULT amvideo_reg_read_use_segatiming(void *bytes, uint32_t *nbytes)
{
return reg_hook_read_u32(bytes, nbytes, 0);
}