| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "SDL_internal.h" |
| |
| #if defined(SDL_VIDEO_DRIVER_WINDOWS) && !defined(SDL_PLATFORM_XBOXONE) && !defined(SDL_PLATFORM_XBOXSERIES) |
| |
| #include "SDL_windowsvideo.h" |
| #include "../../events/SDL_displayevents_c.h" |
| |
| #ifdef HAVE_DXGI1_6_H |
| #define COBJMACROS |
| #include <dxgi1_6.h> |
| #endif |
| |
| /* Windows CE compatibility */ |
| #ifndef CDS_FULLSCREEN |
| #define CDS_FULLSCREEN 0 |
| #endif |
| |
| /* #define DEBUG_MODES */ |
| /* #define HIGHDPI_DEBUG_VERBOSE */ |
| |
| static void WIN_UpdateDisplayMode(SDL_VideoDevice *_this, LPCWSTR deviceName, DWORD index, SDL_DisplayMode *mode) |
| { |
| SDL_DisplayModeData *data = (SDL_DisplayModeData *)mode->driverdata; |
| HDC hdc; |
| |
| data->DeviceMode.dmFields = (DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY | DM_DISPLAYFLAGS); |
| |
| /* NOLINTNEXTLINE(bugprone-assignment-in-if-condition): No simple way to extract the assignment */ |
| if (index == ENUM_CURRENT_SETTINGS && (hdc = CreateDC(deviceName, NULL, NULL, NULL)) != NULL) { |
| char bmi_data[sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD)]; |
| LPBITMAPINFO bmi; |
| HBITMAP hbm; |
| |
| SDL_zeroa(bmi_data); |
| bmi = (LPBITMAPINFO)bmi_data; |
| bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); |
| |
| hbm = CreateCompatibleBitmap(hdc, 1, 1); |
| GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS); |
| GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS); |
| DeleteObject(hbm); |
| DeleteDC(hdc); |
| if (bmi->bmiHeader.biCompression == BI_BITFIELDS) { |
| switch (*(Uint32 *)bmi->bmiColors) { |
| case 0x00FF0000: |
| mode->format = SDL_PIXELFORMAT_XRGB8888; |
| break; |
| case 0x000000FF: |
| mode->format = SDL_PIXELFORMAT_XBGR8888; |
| break; |
| case 0xF800: |
| mode->format = SDL_PIXELFORMAT_RGB565; |
| break; |
| case 0x7C00: |
| mode->format = SDL_PIXELFORMAT_XRGB1555; |
| break; |
| } |
| } else if (bmi->bmiHeader.biCompression == BI_RGB) { |
| if (bmi->bmiHeader.biBitCount == 24) { |
| mode->format = SDL_PIXELFORMAT_RGB24; |
| } else if (bmi->bmiHeader.biBitCount == 8) { |
| mode->format = SDL_PIXELFORMAT_INDEX8; |
| } else if (bmi->bmiHeader.biBitCount == 4) { |
| mode->format = SDL_PIXELFORMAT_INDEX4LSB; |
| } |
| } |
| } else if (mode->format == SDL_PIXELFORMAT_UNKNOWN) { |
| /* FIXME: Can we tell what this will be? */ |
| if ((data->DeviceMode.dmFields & DM_BITSPERPEL) == DM_BITSPERPEL) { |
| switch (data->DeviceMode.dmBitsPerPel) { |
| case 32: |
| mode->format = SDL_PIXELFORMAT_XRGB8888; |
| break; |
| case 24: |
| mode->format = SDL_PIXELFORMAT_RGB24; |
| break; |
| case 16: |
| mode->format = SDL_PIXELFORMAT_RGB565; |
| break; |
| case 15: |
| mode->format = SDL_PIXELFORMAT_XRGB1555; |
| break; |
| case 8: |
| mode->format = SDL_PIXELFORMAT_INDEX8; |
| break; |
| case 4: |
| mode->format = SDL_PIXELFORMAT_INDEX4LSB; |
| break; |
| } |
| } |
| } |
| } |
| |
| static SDL_DisplayOrientation WIN_GetNaturalOrientation(DEVMODE *mode) |
| { |
| int width = mode->dmPelsWidth; |
| int height = mode->dmPelsHeight; |
| |
| /* Use unrotated width/height to guess orientation */ |
| if (mode->dmDisplayOrientation == DMDO_90 || mode->dmDisplayOrientation == DMDO_270) { |
| int temp = width; |
| width = height; |
| height = temp; |
| } |
| |
| if (width >= height) { |
| return SDL_ORIENTATION_LANDSCAPE; |
| } else { |
| return SDL_ORIENTATION_PORTRAIT; |
| } |
| } |
| |
| static SDL_DisplayOrientation WIN_GetDisplayOrientation(DEVMODE *mode) |
| { |
| if (WIN_GetNaturalOrientation(mode) == SDL_ORIENTATION_LANDSCAPE) { |
| switch (mode->dmDisplayOrientation) { |
| case DMDO_DEFAULT: |
| return SDL_ORIENTATION_LANDSCAPE; |
| case DMDO_90: |
| return SDL_ORIENTATION_PORTRAIT; |
| case DMDO_180: |
| return SDL_ORIENTATION_LANDSCAPE_FLIPPED; |
| case DMDO_270: |
| return SDL_ORIENTATION_PORTRAIT_FLIPPED; |
| default: |
| return SDL_ORIENTATION_UNKNOWN; |
| } |
| } else { |
| switch (mode->dmDisplayOrientation) { |
| case DMDO_DEFAULT: |
| return SDL_ORIENTATION_PORTRAIT; |
| case DMDO_90: |
| return SDL_ORIENTATION_LANDSCAPE_FLIPPED; |
| case DMDO_180: |
| return SDL_ORIENTATION_PORTRAIT_FLIPPED; |
| case DMDO_270: |
| return SDL_ORIENTATION_LANDSCAPE; |
| default: |
| return SDL_ORIENTATION_UNKNOWN; |
| } |
| } |
| } |
| |
| static float WIN_GetRefreshRate(DEVMODE *mode) |
| { |
| /* We're not currently using DXGI to query display modes, so fake NTSC timings */ |
| switch (mode->dmDisplayFrequency) { |
| case 119: |
| case 59: |
| case 29: |
| return ((100 * (mode->dmDisplayFrequency + 1) * 1000) / 1001) / 100.0f; |
| default: |
| return (float)mode->dmDisplayFrequency; |
| } |
| } |
| |
| static float WIN_GetContentScale(SDL_VideoDevice *_this, HMONITOR hMonitor) |
| { |
| const SDL_VideoData *videodata = (const SDL_VideoData *)_this->driverdata; |
| int dpi = 0; |
| |
| if (videodata->GetDpiForMonitor) { |
| UINT hdpi_uint, vdpi_uint; |
| if (videodata->GetDpiForMonitor(hMonitor, MDT_EFFECTIVE_DPI, &hdpi_uint, &vdpi_uint) == S_OK) { |
| dpi = (int)hdpi_uint; |
| } |
| } |
| if (dpi == 0) { |
| /* Window 8.0 and below: same DPI for all monitors */ |
| HDC hdc = GetDC(NULL); |
| if (hdc) { |
| dpi = GetDeviceCaps(hdc, LOGPIXELSX); |
| ReleaseDC(NULL, hdc); |
| } |
| } |
| if (dpi == 0) { |
| /* Safe default */ |
| dpi = USER_DEFAULT_SCREEN_DPI; |
| } |
| return dpi / (float)USER_DEFAULT_SCREEN_DPI; |
| } |
| |
| static SDL_bool WIN_GetDisplayMode(SDL_VideoDevice *_this, HMONITOR hMonitor, LPCWSTR deviceName, DWORD index, SDL_DisplayMode *mode, SDL_DisplayOrientation *natural_orientation, SDL_DisplayOrientation *current_orientation) |
| { |
| SDL_DisplayModeData *data; |
| DEVMODE devmode; |
| |
| devmode.dmSize = sizeof(devmode); |
| devmode.dmDriverExtra = 0; |
| if (!EnumDisplaySettingsW(deviceName, index, &devmode)) { |
| return SDL_FALSE; |
| } |
| |
| data = (SDL_DisplayModeData *)SDL_malloc(sizeof(*data)); |
| if (!data) { |
| return SDL_FALSE; |
| } |
| |
| SDL_zerop(mode); |
| mode->driverdata = data; |
| data->DeviceMode = devmode; |
| |
| mode->format = SDL_PIXELFORMAT_UNKNOWN; |
| mode->w = data->DeviceMode.dmPelsWidth; |
| mode->h = data->DeviceMode.dmPelsHeight; |
| mode->refresh_rate = WIN_GetRefreshRate(&data->DeviceMode); |
| |
| /* Fill in the mode information */ |
| WIN_UpdateDisplayMode(_this, deviceName, index, mode); |
| |
| if (natural_orientation) { |
| *natural_orientation = WIN_GetNaturalOrientation(&devmode); |
| } |
| if (current_orientation) { |
| *current_orientation = WIN_GetDisplayOrientation(&devmode); |
| } |
| |
| return SDL_TRUE; |
| } |
| |
| static char *WIN_GetDisplayNameVista(SDL_VideoData *videodata, const WCHAR *deviceName) |
| { |
| DISPLAYCONFIG_PATH_INFO *paths = NULL; |
| DISPLAYCONFIG_MODE_INFO *modes = NULL; |
| char *retval = NULL; |
| UINT32 pathCount = 0; |
| UINT32 modeCount = 0; |
| UINT32 i; |
| LONG rc; |
| |
| if (!videodata->GetDisplayConfigBufferSizes || !videodata->QueryDisplayConfig || !videodata->DisplayConfigGetDeviceInfo) { |
| return NULL; |
| } |
| |
| do { |
| rc = videodata->GetDisplayConfigBufferSizes(QDC_ONLY_ACTIVE_PATHS, &pathCount, &modeCount); |
| if (rc != ERROR_SUCCESS) { |
| goto WIN_GetDisplayNameVista_failed; |
| } |
| |
| SDL_free(paths); |
| SDL_free(modes); |
| |
| paths = (DISPLAYCONFIG_PATH_INFO *)SDL_malloc(sizeof(DISPLAYCONFIG_PATH_INFO) * pathCount); |
| modes = (DISPLAYCONFIG_MODE_INFO *)SDL_malloc(sizeof(DISPLAYCONFIG_MODE_INFO) * modeCount); |
| if ((!paths) || (!modes)) { |
| goto WIN_GetDisplayNameVista_failed; |
| } |
| |
| rc = videodata->QueryDisplayConfig(QDC_ONLY_ACTIVE_PATHS, &pathCount, paths, &modeCount, modes, 0); |
| } while (rc == ERROR_INSUFFICIENT_BUFFER); |
| |
| if (rc == ERROR_SUCCESS) { |
| for (i = 0; i < pathCount; i++) { |
| DISPLAYCONFIG_SOURCE_DEVICE_NAME sourceName; |
| DISPLAYCONFIG_TARGET_DEVICE_NAME targetName; |
| |
| SDL_zero(sourceName); |
| sourceName.header.adapterId = paths[i].targetInfo.adapterId; |
| sourceName.header.type = DISPLAYCONFIG_DEVICE_INFO_GET_SOURCE_NAME; |
| sourceName.header.size = sizeof(sourceName); |
| sourceName.header.id = paths[i].sourceInfo.id; |
| rc = videodata->DisplayConfigGetDeviceInfo(&sourceName.header); |
| if (rc != ERROR_SUCCESS) { |
| break; |
| } else if (SDL_wcscmp(deviceName, sourceName.viewGdiDeviceName) != 0) { |
| continue; |
| } |
| |
| SDL_zero(targetName); |
| targetName.header.adapterId = paths[i].targetInfo.adapterId; |
| targetName.header.id = paths[i].targetInfo.id; |
| targetName.header.type = DISPLAYCONFIG_DEVICE_INFO_GET_TARGET_NAME; |
| targetName.header.size = sizeof(targetName); |
| rc = videodata->DisplayConfigGetDeviceInfo(&targetName.header); |
| if (rc == ERROR_SUCCESS) { |
| retval = WIN_StringToUTF8W(targetName.monitorFriendlyDeviceName); |
| /* if we got an empty string, treat it as failure so we'll fallback |
| to getting the generic name. */ |
| if (retval && (*retval == '\0')) { |
| SDL_free(retval); |
| retval = NULL; |
| } |
| } |
| break; |
| } |
| } |
| |
| SDL_free(paths); |
| SDL_free(modes); |
| return retval; |
| |
| WIN_GetDisplayNameVista_failed: |
| SDL_free(retval); |
| SDL_free(paths); |
| SDL_free(modes); |
| return NULL; |
| } |
| |
| #ifdef HAVE_DXGI1_6_H |
| static SDL_bool WIN_GetMonitorDESC1(HMONITOR hMonitor, DXGI_OUTPUT_DESC1 *desc) |
| { |
| typedef HRESULT (WINAPI * PFN_CREATE_DXGI_FACTORY)(REFIID riid, void **ppFactory); |
| PFN_CREATE_DXGI_FACTORY CreateDXGIFactoryFunc = NULL; |
| void *hDXGIMod = NULL; |
| SDL_bool found = SDL_FALSE; |
| |
| #ifdef SDL_PLATFORM_WINRT |
| CreateDXGIFactoryFunc = CreateDXGIFactory1; |
| #else |
| hDXGIMod = SDL_LoadObject("dxgi.dll"); |
| if (hDXGIMod) { |
| CreateDXGIFactoryFunc = (PFN_CREATE_DXGI_FACTORY)SDL_LoadFunction(hDXGIMod, "CreateDXGIFactory1"); |
| } |
| #endif |
| if (CreateDXGIFactoryFunc) { |
| static const GUID SDL_IID_IDXGIFactory1 = { 0x770aae78, 0xf26f, 0x4dba, { 0xa8, 0x29, 0x25, 0x3c, 0x83, 0xd1, 0xb3, 0x87 } }; |
| static const GUID SDL_IID_IDXGIOutput6 = { 0x068346e8, 0xaaec, 0x4b84, { 0xad, 0xd7, 0x13, 0x7f, 0x51, 0x3f, 0x77, 0xa1 } }; |
| IDXGIFactory1 *dxgiFactory; |
| |
| if (SUCCEEDED(CreateDXGIFactoryFunc(&SDL_IID_IDXGIFactory1, (void **)&dxgiFactory))) { |
| IDXGIAdapter1 *dxgiAdapter; |
| UINT adapter = 0; |
| while (!found && SUCCEEDED(IDXGIFactory1_EnumAdapters1(dxgiFactory, adapter, &dxgiAdapter))) { |
| IDXGIOutput *dxgiOutput; |
| UINT output = 0; |
| while (!found && SUCCEEDED(IDXGIAdapter1_EnumOutputs(dxgiAdapter, output, &dxgiOutput))) { |
| IDXGIOutput6 *dxgiOutput6; |
| if (SUCCEEDED(IDXGIOutput_QueryInterface(dxgiOutput, &SDL_IID_IDXGIOutput6, (void **)&dxgiOutput6))) { |
| if (SUCCEEDED(IDXGIOutput6_GetDesc1(dxgiOutput6, desc))) { |
| if (desc->Monitor == hMonitor) { |
| found = SDL_TRUE; |
| } |
| } |
| IDXGIOutput6_Release(dxgiOutput6); |
| } |
| IDXGIOutput_Release(dxgiOutput); |
| ++output; |
| } |
| IDXGIAdapter1_Release(dxgiAdapter); |
| ++adapter; |
| } |
| IDXGIFactory2_Release(dxgiFactory); |
| } |
| } |
| if (hDXGIMod) { |
| SDL_UnloadObject(hDXGIMod); |
| } |
| return found; |
| } |
| |
| static SDL_bool WIN_GetMonitorPathInfo(SDL_VideoData *videodata, HMONITOR hMonitor, DISPLAYCONFIG_PATH_INFO *path_info) |
| { |
| LONG result; |
| MONITORINFOEXW view_info; |
| UINT32 i; |
| UINT32 num_path_array_elements = 0; |
| UINT32 num_mode_info_array_elements = 0; |
| DISPLAYCONFIG_PATH_INFO *path_infos = NULL, *new_path_infos; |
| DISPLAYCONFIG_MODE_INFO *mode_infos = NULL, *new_mode_infos; |
| SDL_bool found = SDL_FALSE; |
| |
| if (!videodata->GetDisplayConfigBufferSizes || !videodata->QueryDisplayConfig || !videodata->DisplayConfigGetDeviceInfo) { |
| return SDL_FALSE; |
| } |
| |
| SDL_zero(view_info); |
| view_info.cbSize = sizeof(view_info); |
| if (!GetMonitorInfoW(hMonitor, (MONITORINFO *)&view_info)) { |
| goto done; |
| } |
| |
| do { |
| if (videodata->GetDisplayConfigBufferSizes(QDC_ONLY_ACTIVE_PATHS, &num_path_array_elements, &num_mode_info_array_elements) != ERROR_SUCCESS) { |
| SDL_free(path_infos); |
| SDL_free(mode_infos); |
| return SDL_FALSE; |
| } |
| |
| new_path_infos = (DISPLAYCONFIG_PATH_INFO *)SDL_realloc(path_infos, num_path_array_elements * sizeof(*path_infos)); |
| if (!new_path_infos) { |
| goto done; |
| } |
| path_infos = new_path_infos; |
| |
| new_mode_infos = (DISPLAYCONFIG_MODE_INFO *)SDL_realloc(mode_infos, num_mode_info_array_elements * sizeof(*mode_infos)); |
| if (!new_mode_infos) { |
| goto done; |
| } |
| mode_infos = new_mode_infos; |
| |
| result = videodata->QueryDisplayConfig(QDC_ONLY_ACTIVE_PATHS, &num_path_array_elements, path_infos, &num_mode_info_array_elements, mode_infos, NULL); |
| |
| } while (result == ERROR_INSUFFICIENT_BUFFER); |
| |
| if (result == ERROR_SUCCESS) { |
| for (i = 0; i < num_path_array_elements; ++i) { |
| DISPLAYCONFIG_SOURCE_DEVICE_NAME device_name; |
| |
| SDL_zero(device_name); |
| device_name.header.type = DISPLAYCONFIG_DEVICE_INFO_GET_SOURCE_NAME; |
| device_name.header.size = sizeof(device_name); |
| device_name.header.adapterId = path_infos[i].sourceInfo.adapterId; |
| device_name.header.id = path_infos[i].sourceInfo.id; |
| if (videodata->DisplayConfigGetDeviceInfo(&device_name.header) == ERROR_SUCCESS) { |
| if (SDL_wcscmp(view_info.szDevice, device_name.viewGdiDeviceName) == 0) { |
| SDL_copyp(path_info, &path_infos[i]); |
| found = SDL_TRUE; |
| break; |
| } |
| } |
| } |
| } |
| |
| done: |
| SDL_free(path_infos); |
| SDL_free(mode_infos); |
| |
| return found; |
| } |
| |
| static float WIN_GetSDRWhitePoint(SDL_VideoDevice *_this, HMONITOR hMonitor) |
| { |
| DISPLAYCONFIG_PATH_INFO path_info; |
| SDL_VideoData *videodata = _this->driverdata; |
| float SDR_white_level = 1.0f; |
| |
| if (WIN_GetMonitorPathInfo(videodata, hMonitor, &path_info)) { |
| DISPLAYCONFIG_SDR_WHITE_LEVEL white_level; |
| |
| SDL_zero(white_level); |
| white_level.header.type = DISPLAYCONFIG_DEVICE_INFO_GET_SDR_WHITE_LEVEL; |
| white_level.header.size = sizeof(white_level); |
| white_level.header.adapterId = path_info.targetInfo.adapterId; |
| white_level.header.id = path_info.targetInfo.id; |
| /* WIN_GetMonitorPathInfo() succeeded: DisplayConfigGetDeviceInfo is not NULL */ |
| if (videodata->DisplayConfigGetDeviceInfo(&white_level.header) == ERROR_SUCCESS && |
| white_level.SDRWhiteLevel > 0) { |
| SDR_white_level = (white_level.SDRWhiteLevel / 1000.0f); |
| } |
| } |
| return SDR_white_level; |
| } |
| |
| static void WIN_GetHDRProperties(SDL_VideoDevice *_this, HMONITOR hMonitor, SDL_HDROutputProperties *HDR) |
| { |
| DXGI_OUTPUT_DESC1 desc; |
| |
| SDL_zerop(HDR); |
| |
| if (WIN_GetMonitorDESC1(hMonitor, &desc)) { |
| if (desc.ColorSpace == DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020) { |
| HDR->SDR_white_level = WIN_GetSDRWhitePoint(_this, hMonitor); |
| HDR->HDR_headroom = (desc.MaxLuminance / 80.0f) / HDR->SDR_white_level; |
| } |
| } |
| } |
| #endif /* HAVE_DXGI1_6_H */ |
| |
| static void WIN_AddDisplay(SDL_VideoDevice *_this, HMONITOR hMonitor, const MONITORINFOEXW *info, int *display_index) |
| { |
| int i, index = *display_index; |
| SDL_VideoDisplay display; |
| SDL_DisplayData *displaydata; |
| SDL_DisplayMode mode; |
| SDL_DisplayOrientation natural_orientation; |
| SDL_DisplayOrientation current_orientation; |
| float content_scale = WIN_GetContentScale(_this, hMonitor); |
| |
| #ifdef DEBUG_MODES |
| SDL_Log("Display: %s\n", WIN_StringToUTF8W(info->szDevice)); |
| #endif |
| |
| if (!WIN_GetDisplayMode(_this, hMonitor, info->szDevice, ENUM_CURRENT_SETTINGS, &mode, &natural_orientation, ¤t_orientation)) { |
| return; |
| } |
| |
| // Prevent adding duplicate displays. Do this after we know the display is |
| // ready to be added to allow any displays that we can't fully query to be |
| // removed |
| for (i = 0; i < _this->num_displays; ++i) { |
| SDL_DisplayData *driverdata = _this->displays[i]->driverdata; |
| if (SDL_wcscmp(driverdata->DeviceName, info->szDevice) == 0) { |
| SDL_bool moved = (index != i); |
| SDL_bool changed_bounds = SDL_FALSE; |
| |
| if (driverdata->state != DisplayRemoved) { |
| /* We've already enumerated this display, don't move it */ |
| return; |
| } |
| |
| if (index >= _this->num_displays) { |
| /* This should never happen due to the check above, but just in case... */ |
| return; |
| } |
| |
| if (moved) { |
| SDL_VideoDisplay *tmp; |
| |
| tmp = _this->displays[index]; |
| _this->displays[index] = _this->displays[i]; |
| _this->displays[i] = tmp; |
| i = index; |
| } |
| |
| driverdata->MonitorHandle = hMonitor; |
| driverdata->state = DisplayUnchanged; |
| |
| if (!_this->setting_display_mode) { |
| SDL_VideoDisplay *existing_display = _this->displays[i]; |
| SDL_Rect bounds; |
| |
| SDL_ResetFullscreenDisplayModes(existing_display); |
| SDL_SetDesktopDisplayMode(existing_display, &mode); |
| if (WIN_GetDisplayBounds(_this, existing_display, &bounds) == 0 && |
| SDL_memcmp(&driverdata->bounds, &bounds, sizeof(bounds)) != 0) { |
| changed_bounds = SDL_TRUE; |
| SDL_copyp(&driverdata->bounds, &bounds); |
| } |
| if (moved || changed_bounds) { |
| SDL_SendDisplayEvent(existing_display, SDL_EVENT_DISPLAY_MOVED, 0); |
| } |
| SDL_SendDisplayEvent(existing_display, SDL_EVENT_DISPLAY_ORIENTATION, current_orientation); |
| SDL_SetDisplayContentScale(existing_display, content_scale); |
| #ifdef HAVE_DXGI1_6_H |
| SDL_HDROutputProperties HDR; |
| WIN_GetHDRProperties(_this, hMonitor, &HDR); |
| SDL_SetDisplayHDRProperties(existing_display, &HDR); |
| #endif |
| } |
| goto done; |
| } |
| } |
| |
| displaydata = (SDL_DisplayData *)SDL_calloc(1, sizeof(*displaydata)); |
| if (!displaydata) { |
| return; |
| } |
| SDL_memcpy(displaydata->DeviceName, info->szDevice, sizeof(displaydata->DeviceName)); |
| displaydata->MonitorHandle = hMonitor; |
| displaydata->state = DisplayAdded; |
| |
| SDL_zero(display); |
| display.name = WIN_GetDisplayNameVista(_this->driverdata, info->szDevice); |
| if (!display.name) { |
| DISPLAY_DEVICEW device; |
| SDL_zero(device); |
| device.cb = sizeof(device); |
| if (EnumDisplayDevicesW(info->szDevice, 0, &device, 0)) { |
| display.name = WIN_StringToUTF8W(device.DeviceString); |
| } |
| } |
| |
| display.desktop_mode = mode; |
| display.natural_orientation = natural_orientation; |
| display.current_orientation = current_orientation; |
| display.content_scale = content_scale; |
| display.device = _this; |
| display.driverdata = displaydata; |
| WIN_GetDisplayBounds(_this, &display, &displaydata->bounds); |
| #ifdef HAVE_DXGI1_6_H |
| WIN_GetHDRProperties(_this, hMonitor, &display.HDR); |
| #endif |
| SDL_AddVideoDisplay(&display, SDL_FALSE); |
| SDL_free(display.name); |
| |
| done: |
| *display_index += 1; |
| } |
| |
| typedef struct _WIN_AddDisplaysData |
| { |
| SDL_VideoDevice *video_device; |
| int display_index; |
| SDL_bool want_primary; |
| } WIN_AddDisplaysData; |
| |
| static BOOL CALLBACK WIN_AddDisplaysCallback(HMONITOR hMonitor, |
| HDC hdcMonitor, |
| LPRECT lprcMonitor, |
| LPARAM dwData) |
| { |
| WIN_AddDisplaysData *data = (WIN_AddDisplaysData *)dwData; |
| MONITORINFOEXW info; |
| |
| SDL_zero(info); |
| info.cbSize = sizeof(info); |
| |
| if (GetMonitorInfoW(hMonitor, (LPMONITORINFO)&info) != 0) { |
| const SDL_bool is_primary = ((info.dwFlags & MONITORINFOF_PRIMARY) == MONITORINFOF_PRIMARY); |
| |
| if (is_primary == data->want_primary) { |
| WIN_AddDisplay(data->video_device, hMonitor, &info, &data->display_index); |
| } |
| } |
| |
| // continue enumeration |
| return TRUE; |
| } |
| |
| static void WIN_AddDisplays(SDL_VideoDevice *_this) |
| { |
| WIN_AddDisplaysData callback_data; |
| callback_data.video_device = _this; |
| callback_data.display_index = 0; |
| |
| callback_data.want_primary = SDL_TRUE; |
| EnumDisplayMonitors(NULL, NULL, WIN_AddDisplaysCallback, (LPARAM)&callback_data); |
| |
| callback_data.want_primary = SDL_FALSE; |
| EnumDisplayMonitors(NULL, NULL, WIN_AddDisplaysCallback, (LPARAM)&callback_data); |
| } |
| |
| int WIN_InitModes(SDL_VideoDevice *_this) |
| { |
| WIN_AddDisplays(_this); |
| |
| if (_this->num_displays == 0) { |
| return SDL_SetError("No displays available"); |
| } |
| return 0; |
| } |
| |
| int WIN_GetDisplayBounds(SDL_VideoDevice *_this, SDL_VideoDisplay *display, SDL_Rect *rect) |
| { |
| const SDL_DisplayData *data = display->driverdata; |
| MONITORINFO minfo; |
| BOOL rc; |
| |
| SDL_zero(minfo); |
| minfo.cbSize = sizeof(MONITORINFO); |
| rc = GetMonitorInfo(data->MonitorHandle, &minfo); |
| |
| if (!rc) { |
| return SDL_SetError("Couldn't find monitor data"); |
| } |
| |
| rect->x = minfo.rcMonitor.left; |
| rect->y = minfo.rcMonitor.top; |
| rect->w = minfo.rcMonitor.right - minfo.rcMonitor.left; |
| rect->h = minfo.rcMonitor.bottom - minfo.rcMonitor.top; |
| |
| return 0; |
| } |
| |
| int WIN_GetDisplayUsableBounds(SDL_VideoDevice *_this, SDL_VideoDisplay *display, SDL_Rect *rect) |
| { |
| const SDL_DisplayData *data = display->driverdata; |
| MONITORINFO minfo; |
| BOOL rc; |
| |
| SDL_zero(minfo); |
| minfo.cbSize = sizeof(MONITORINFO); |
| rc = GetMonitorInfo(data->MonitorHandle, &minfo); |
| |
| if (!rc) { |
| return SDL_SetError("Couldn't find monitor data"); |
| } |
| |
| rect->x = minfo.rcWork.left; |
| rect->y = minfo.rcWork.top; |
| rect->w = minfo.rcWork.right - minfo.rcWork.left; |
| rect->h = minfo.rcWork.bottom - minfo.rcWork.top; |
| |
| return 0; |
| } |
| |
| int WIN_GetDisplayModes(SDL_VideoDevice *_this, SDL_VideoDisplay *display) |
| { |
| SDL_DisplayData *data = display->driverdata; |
| DWORD i; |
| SDL_DisplayMode mode; |
| |
| for (i = 0;; ++i) { |
| if (!WIN_GetDisplayMode(_this, data->MonitorHandle, data->DeviceName, i, &mode, NULL, NULL)) { |
| break; |
| } |
| if (SDL_ISPIXELFORMAT_INDEXED(mode.format)) { |
| /* We don't support palettized modes now */ |
| SDL_free(mode.driverdata); |
| continue; |
| } |
| if (mode.format != SDL_PIXELFORMAT_UNKNOWN) { |
| if (!SDL_AddFullscreenDisplayMode(display, &mode)) { |
| SDL_free(mode.driverdata); |
| } |
| } else { |
| SDL_free(mode.driverdata); |
| } |
| } |
| return 0; |
| } |
| |
| #ifdef DEBUG_MODES |
| static void WIN_LogMonitor(SDL_VideoDevice *_this, HMONITOR mon) |
| { |
| const SDL_VideoData *vid_data = (const SDL_VideoData *)_this->driverdata; |
| MONITORINFOEX minfo; |
| UINT xdpi = 0, ydpi = 0; |
| char *name_utf8; |
| |
| if (vid_data->GetDpiForMonitor) { |
| vid_data->GetDpiForMonitor(mon, MDT_EFFECTIVE_DPI, &xdpi, &ydpi); |
| } |
| |
| SDL_zero(minfo); |
| minfo.cbSize = sizeof(minfo); |
| GetMonitorInfo(mon, (LPMONITORINFO)&minfo); |
| |
| name_utf8 = WIN_StringToUTF8(minfo.szDevice); |
| |
| SDL_Log("WIN_LogMonitor: monitor \"%s\": dpi: %d windows screen coordinates: %d, %d, %dx%d", |
| name_utf8, |
| xdpi, |
| minfo.rcMonitor.left, |
| minfo.rcMonitor.top, |
| minfo.rcMonitor.right - minfo.rcMonitor.left, |
| minfo.rcMonitor.bottom - minfo.rcMonitor.top); |
| |
| SDL_free(name_utf8); |
| } |
| #endif |
| |
| int WIN_SetDisplayMode(SDL_VideoDevice *_this, SDL_VideoDisplay *display, SDL_DisplayMode *mode) |
| { |
| SDL_DisplayData *displaydata = display->driverdata; |
| SDL_DisplayModeData *data = (SDL_DisplayModeData *)mode->driverdata; |
| LONG status; |
| |
| #ifdef DEBUG_MODES |
| SDL_Log("WIN_SetDisplayMode: monitor state before mode change:"); |
| WIN_LogMonitor(_this, displaydata->MonitorHandle); |
| #endif |
| |
| /* High-DPI notes: |
| |
| - ChangeDisplaySettingsEx always takes pixels. |
| - e.g. if the display is set to 2880x1800 with 200% scaling in Display Settings |
| - calling ChangeDisplaySettingsEx with a dmPelsWidth/Height other than 2880x1800 will |
| change the monitor DPI to 96. (100% scaling) |
| - calling ChangeDisplaySettingsEx with a dmPelsWidth/Height of 2880x1800 (or a NULL DEVMODE*) will |
| reset the monitor DPI to 192. (200% scaling) |
| |
| NOTE: these are temporary changes in DPI, not modifications to the Control Panel setting. */ |
| if (mode->driverdata == display->desktop_mode.driverdata) { |
| #ifdef DEBUG_MODES |
| SDL_Log("WIN_SetDisplayMode: resetting to original resolution"); |
| #endif |
| status = ChangeDisplaySettingsExW(displaydata->DeviceName, NULL, NULL, CDS_FULLSCREEN, NULL); |
| } else { |
| #ifdef DEBUG_MODES |
| SDL_Log("WIN_SetDisplayMode: changing to %dx%d pixels", data->DeviceMode.dmPelsWidth, data->DeviceMode.dmPelsHeight); |
| #endif |
| status = ChangeDisplaySettingsExW(displaydata->DeviceName, &data->DeviceMode, NULL, CDS_FULLSCREEN, NULL); |
| } |
| if (status != DISP_CHANGE_SUCCESSFUL) { |
| const char *reason = "Unknown reason"; |
| switch (status) { |
| case DISP_CHANGE_BADFLAGS: |
| reason = "DISP_CHANGE_BADFLAGS"; |
| break; |
| case DISP_CHANGE_BADMODE: |
| reason = "DISP_CHANGE_BADMODE"; |
| break; |
| case DISP_CHANGE_BADPARAM: |
| reason = "DISP_CHANGE_BADPARAM"; |
| break; |
| case DISP_CHANGE_FAILED: |
| reason = "DISP_CHANGE_FAILED"; |
| break; |
| } |
| return SDL_SetError("ChangeDisplaySettingsEx() failed: %s", reason); |
| } |
| |
| #ifdef DEBUG_MODES |
| SDL_Log("WIN_SetDisplayMode: monitor state after mode change:"); |
| WIN_LogMonitor(_this, displaydata->MonitorHandle); |
| #endif |
| |
| EnumDisplaySettingsW(displaydata->DeviceName, ENUM_CURRENT_SETTINGS, &data->DeviceMode); |
| WIN_UpdateDisplayMode(_this, displaydata->DeviceName, ENUM_CURRENT_SETTINGS, mode); |
| return 0; |
| } |
| |
| void WIN_RefreshDisplays(SDL_VideoDevice *_this) |
| { |
| int i; |
| |
| // Mark all displays as potentially invalid to detect |
| // entries that have actually been removed |
| for (i = 0; i < _this->num_displays; ++i) { |
| SDL_DisplayData *driverdata = _this->displays[i]->driverdata; |
| driverdata->state = DisplayRemoved; |
| } |
| |
| // Enumerate displays to add any new ones and mark still |
| // connected entries as valid |
| WIN_AddDisplays(_this); |
| |
| // Delete any entries still marked as invalid, iterate |
| // in reverse as each delete takes effect immediately |
| for (i = _this->num_displays - 1; i >= 0; --i) { |
| SDL_VideoDisplay *display = _this->displays[i]; |
| SDL_DisplayData *driverdata = display->driverdata; |
| if (driverdata->state == DisplayRemoved) { |
| SDL_DelVideoDisplay(display->id, SDL_TRUE); |
| } |
| } |
| |
| // Send events for any newly added displays |
| for (i = 0; i < _this->num_displays; ++i) { |
| SDL_VideoDisplay *display = _this->displays[i]; |
| SDL_DisplayData *driverdata = display->driverdata; |
| if (driverdata->state == DisplayAdded) { |
| SDL_SendDisplayEvent(display, SDL_EVENT_DISPLAY_ADDED, 0); |
| } |
| } |
| } |
| |
| void WIN_QuitModes(SDL_VideoDevice *_this) |
| { |
| /* All fullscreen windows should have restored modes by now */ |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_WINDOWS */ |
