mirror of
https://github.com/libretro/RetroArch
synced 2025-01-31 06:32:48 +00:00
143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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* * You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef _XBOX
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#include <xtl.h>
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#else
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#include <windows.h>
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#endif
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#include <retro_miscellaneous.h>
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#include "../frontend_driver.h"
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#include "../../dylib.h"
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#include "../../general.h"
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#include <stdint.h>
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#include <boolean.h>
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#include <stddef.h>
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#include <string.h>
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#if defined(_WIN32) && !defined(_XBOX)
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/* We only load this library once, so we let it be
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* unloaded at application shutdown, since unloading
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* it early seems to cause issues on some systems.
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*/
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static dylib_t dwmlib;
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static bool dwm_composition_disabled;
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static void gfx_dwm_shutdown(void)
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{
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if (dwmlib)
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dylib_close(dwmlib);
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dwmlib = NULL;
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}
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static bool gfx_init_dwm(void)
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{
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static bool inited = false;
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if (inited)
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return true;
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dwmlib = dylib_load("dwmapi.dll");
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if (!dwmlib)
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{
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RARCH_LOG("Did not find dwmapi.dll.\n");
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return false;
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}
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atexit(gfx_dwm_shutdown);
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HRESULT (WINAPI *mmcss)(BOOL) =
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(HRESULT (WINAPI*)(BOOL))dylib_proc(dwmlib, "DwmEnableMMCSS");
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if (mmcss)
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{
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RARCH_LOG("Setting multimedia scheduling for DWM.\n");
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mmcss(TRUE);
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}
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inited = true;
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return true;
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}
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static void gfx_set_dwm(void)
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{
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HRESULT ret;
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settings_t *settings = config_get_ptr();
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if (!gfx_init_dwm())
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return;
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if (settings->video.disable_composition == dwm_composition_disabled)
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return;
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HRESULT (WINAPI *composition_enable)(UINT) =
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(HRESULT (WINAPI*)(UINT))dylib_proc(dwmlib, "DwmEnableComposition");
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if (!composition_enable)
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{
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RARCH_ERR("Did not find DwmEnableComposition ...\n");
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return;
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}
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ret = composition_enable(!settings->video.disable_composition);
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if (FAILED(ret))
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RARCH_ERR("Failed to set composition state ...\n");
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dwm_composition_disabled = settings->video.disable_composition;
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}
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#endif
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static void frontend_win32_get_os(char *name, size_t sizeof_name, int *major, int *minor)
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{
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uint32_t version = GetVersion();
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*major = (DWORD)(LOBYTE(LOWORD(version)));
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*minor = (DWORD)(HIBYTE(LOWORD(version)));
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}
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static void frontend_win32_init(void *data)
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{
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typedef BOOL (WINAPI *isProcessDPIAwareProc)();
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typedef BOOL (WINAPI *setProcessDPIAwareProc)();
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HMODULE handle = GetModuleHandle(TEXT("User32.dll"));
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isProcessDPIAwareProc isDPIAwareProc = (isProcessDPIAwareProc)dylib_proc(handle, "IsProcessDPIAware");
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setProcessDPIAwareProc setDPIAwareProc = (setProcessDPIAwareProc)dylib_proc(handle, "SetProcessDPIAware");
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if (isDPIAwareProc)
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{
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if (!isDPIAwareProc())
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{
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if (setDPIAwareProc)
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setDPIAwareProc();
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}
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}
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gfx_set_dwm();
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}
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const frontend_ctx_driver_t frontend_ctx_win32 = {
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NULL, /* environment_get */
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frontend_win32_init, /* init */
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NULL, /* deinit */
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NULL, /* exitspawn */
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NULL, /* process_args */
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NULL, /* exec */
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NULL, /* set_fork */
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NULL, /* shutdown */
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NULL, /* get_name */
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frontend_win32_get_os, /* get_os */
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NULL, /* get_rating */
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NULL, /* load_content */
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"win32",
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};
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