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Update the orientation and display modes when the display settings change on Windows 

Fixes https://github.com/libsdl-org/SDL/issues/1061
This commit is contained in:
Sam Lantinga 2021-11-10 08:47:39 -08:00
parent c0f1109bd0
commit fed857787a
3 changed files with 53 additions and 11 deletions
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4
src/video/SDL_sysvideo.h
View File

@ -341,6 +341,7 @@ struct SDL_VideoDevice
Uint8 window_magic;
Uint32 next_object_id;
char *clipboard_text;
SDL_bool setting_display_mode;
/* * * */
/* Data used by the GL drivers */
@ -459,6 +460,9 @@ extern int SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode);
extern int SDL_AddVideoDisplay(const SDL_VideoDisplay * display, SDL_bool send_event);
extern void SDL_DelVideoDisplay(int index);
extern SDL_bool SDL_AddDisplayMode(SDL_VideoDisplay *display, const SDL_DisplayMode * mode);
extern void SDL_SetCurrentDisplayMode(SDL_VideoDisplay *display, const SDL_DisplayMode * mode);
extern void SDL_SetDesktopDisplayMode(SDL_VideoDisplay *display, const SDL_DisplayMode * mode);
extern void SDL_ResetDisplayModes(int displayIndex);
extern int SDL_GetIndexOfDisplay(SDL_VideoDisplay *display);
extern SDL_VideoDisplay *SDL_GetDisplay(int displayIndex);
extern SDL_VideoDisplay *SDL_GetDisplayForWindow(SDL_Window *window);

50
src/video/SDL_video.c
View File

@ -796,7 +796,7 @@ SDL_GetDisplayOrientation(int displayIndex)
}
SDL_bool
SDL_AddDisplayMode(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
SDL_AddDisplayMode(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
{
SDL_DisplayMode *modes;
int i, nmodes;
@ -831,6 +831,18 @@ SDL_AddDisplayMode(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
return SDL_TRUE;
}
void
SDL_SetCurrentDisplayMode(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
{
SDL_memcpy(&display->current_mode, mode, sizeof(*mode));
}
void
SDL_SetDesktopDisplayMode(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
{
SDL_memcpy(&display->desktop_mode, mode, sizeof(*mode));
}
static int
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
{
@ -850,6 +862,25 @@ SDL_GetNumDisplayModes(int displayIndex)
return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
}
void
SDL_ResetDisplayModes(int displayIndex)
{
SDL_VideoDisplay *display;
int i;
CHECK_DISPLAY_INDEX(displayIndex,);
display = &_this->displays[displayIndex];
for (i = display->num_display_modes; i--;) {
SDL_free(display->display_modes[i].driverdata);
display->display_modes[i].driverdata = NULL;
}
SDL_free(display->display_modes);
display->display_modes = NULL;
display->num_display_modes = 0;
display->max_display_modes = 0;
}
int
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
{
@ -1021,6 +1052,7 @@ SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode *
{
SDL_DisplayMode display_mode;
SDL_DisplayMode current_mode;
int result;
if (mode) {
display_mode = *mode;
@ -1058,10 +1090,13 @@ SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode *
if (!_this->SetDisplayMode) {
return SDL_SetError("SDL video driver doesn't support changing display mode");
}
if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
_this->setting_display_mode = SDL_TRUE;
result = _this->SetDisplayMode(_this, display, &display_mode);
_this->setting_display_mode = SDL_FALSE;
if (result < 0) {
return -1;
}
display->current_mode = display_mode;
SDL_SetCurrentDisplayMode(display, &display_mode);
return 0;
}
@ -3157,7 +3192,7 @@ SDL_DisableScreenSaver()
void
SDL_VideoQuit(void)
{
int i, j;
int i;
if (!_this) {
return;
@ -3179,12 +3214,7 @@ SDL_VideoQuit(void)
for (i = 0; i < _this->num_displays; ++i) {
SDL_VideoDisplay *display = &_this->displays[i];
for (j = display->num_display_modes; j--;) {
SDL_free(display->display_modes[j].driverdata);
display->display_modes[j].driverdata = NULL;
}
SDL_free(display->display_modes);
display->display_modes = NULL;
SDL_ResetDisplayModes(i);
SDL_free(display->desktop_mode.driverdata);
display->desktop_mode.driverdata = NULL;
SDL_free(display->driverdata);

10
src/video/windows/SDL_windowsmodes.c
View File

@ -23,6 +23,7 @@
#if SDL_VIDEO_DRIVER_WINDOWS
#include "SDL_windowsvideo.h"
#include "../../events/SDL_displayevents_c.h"
/* Windows CE compatibility */
#ifndef CDS_FULLSCREEN
@ -211,6 +212,13 @@ WIN_AddDisplay(_THIS, HMONITOR hMonitor, const MONITORINFOEXW *info, SDL_bool se
if (SDL_wcscmp(driverdata->DeviceName, info->szDevice) == 0) {
driverdata->MonitorHandle = hMonitor;
driverdata->IsValid = SDL_TRUE;
if (!_this->setting_display_mode) {
SDL_ResetDisplayModes(i);
SDL_SetCurrentDisplayMode(&_this->displays[i], &mode);
SDL_SetDesktopDisplayMode(&_this->displays[i], &mode);
SDL_SendDisplayEvent(&_this->displays[i], SDL_DISPLAYEVENT_ORIENTATION, orientation);
}
return SDL_FALSE;
}
}
@ -405,7 +413,7 @@ WIN_GetDisplayModes(_THIS, SDL_VideoDisplay * display)
DWORD i;
SDL_DisplayMode mode;
for (i = 0;; ++i) {
for (i = 0; ; ++i) {
if (!WIN_GetDisplayMode(_this, data->DeviceName, i, &mode, NULL)) {
break;
}