Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_lowvideo.h @ 1295:c3e36ac8a94c
Date: Sun, 6 Mar 2005 17:06:20 +0100
From: Per Inge Mathisen
Subject: [SDL] Fullscreen refresh on win32
Windows has a terrible default for fullscreen 3D apps of 60mhz refresh
rate. This can be fixed by the user by going into his driver's
control panel and forcing the refresh rate higher. However, this not a
very user friendly way about it, and in any case SDL contains no code
that could figure out this that condition has afflicted the user.
So the question is, could SDL fix this for the user? It is possible
under Windows to request a higher refresh rate. The danger is of
course that if the user has an old monitor, and you request a too high
refresh rate, the monitor could be damaged. However, I believe there
might be a way around that: Check before switching what refresh rate
the user's desktop runs in, and if our fullscreen dimensions are equal
or less than those of the desktop, use the higher refresh rate of 60
and the desktop rate.
Since most users run their desktops in the same or higher resolution
something sane, this should fix this problem for most users.
Thoughts?
An alternative is to add an SDL_GL_GetAttribute(SDL_GL_REFRESH_RATE)
option so that programs can bitch at their users at their own
convenience.
- Per
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 30 Jan 2006 06:56:10 +0000 |
| parents | f61f045343d3 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #ifndef _SDL_lowvideo_h | |
| 29 #define _SDL_lowvideo_h | |
| 30 | |
| 31 #include <windows.h> | |
| 32 | |
| 33 #include "SDL_sysvideo.h" | |
| 34 | |
| 35 /* Hidden "this" pointer for the video functions */ | |
| 36 #define _THIS SDL_VideoDevice *this | |
| 37 | |
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38 #define WINDIB_FULLSCREEN() \ |
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39 ( \ |
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40 SDL_VideoSurface && \ |
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41 ((SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) && \ |
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42 (((SDL_VideoSurface->flags & SDL_OPENGL ) == SDL_OPENGL ) || \ |
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43 ((strcmp(this->name, "windib") == 0) || \ |
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44 (strcmp(this->name, "gapi") == 0))) \ |
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45 ) |
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46 #define DDRAW_FULLSCREEN() \ |
| 0 | 47 ( \ |
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48 SDL_VideoSurface && \ |
| 0 | 49 ((SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) && \ |
| 50 ((SDL_VideoSurface->flags & SDL_OPENGL ) != SDL_OPENGL ) && \ | |
| 51 (strcmp(this->name, "directx") == 0) \ | |
| 52 ) | |
| 53 | |
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54 #define DINPUT_FULLSCREEN() DDRAW_FULLSCREEN() |
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55 |
| 0 | 56 /* The main window -- and a function to set it for the audio */ |
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57 #ifdef _WIN32_WCE |
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58 extern LPWSTR SDL_Appname; |
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59 #else |
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60 extern LPSTR SDL_Appname; |
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61 #endif |
| 0 | 62 extern HINSTANCE SDL_Instance; |
| 63 extern HWND SDL_Window; | |
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64 extern BOOL SDL_windowid; |
| 0 | 65 |
| 66 /* Variables and functions exported to other parts of the native video | |
| 67 subsystem (SDL_sysevents.c) | |
| 68 */ | |
| 69 /* Called by windows message loop when system palette is available */ | |
| 70 extern void (*WIN_RealizePalette)(_THIS); | |
| 71 | |
| 72 /* Called by windows message loop when the system palette changes */ | |
| 73 extern void (*WIN_PaletteChanged)(_THIS, HWND window); | |
| 74 | |
| 75 /* Called by windows message loop when a portion of the screen needs update */ | |
| 76 extern void (*WIN_WinPAINT)(_THIS, HDC hdc); | |
| 77 | |
| 78 /* Called by windows message loop when the message isn't handled */ | |
| 79 extern LONG (*HandleMessage)(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam); | |
| 80 | |
| 81 /* The window cursor (from SDL_sysmouse.c) */ | |
| 82 extern HCURSOR SDL_hcursor; | |
| 83 | |
| 84 /* The bounds of the window in screen coordinates */ | |
| 85 extern RECT SDL_bounds; | |
| 86 | |
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87 /* The position of the window in windowed mode */ |
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88 extern int SDL_windowX; |
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89 extern int SDL_windowY; |
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90 |
| 0 | 91 /* Flag -- SDL is performing a resize, rather than the user */ |
| 92 extern int SDL_resizing; | |
| 93 | |
| 94 /* Flag -- the mouse is in relative motion mode */ | |
| 95 extern int mouse_relative; | |
| 96 | |
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97 /* The GDI fullscreen mode currently active */ |
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98 #ifndef NO_CHANGEDISPLAYSETTINGS |
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99 extern DEVMODE SDL_desktop_mode; |
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100 extern DEVMODE SDL_fullscreen_mode; |
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101 #endif |
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102 |
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103 /* The system gamma ramp for GDI modes */ |
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104 extern WORD *gamma_saved; |
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105 |
| 0 | 106 /* This is really from SDL_dx5audio.c */ |
| 107 extern void DX5_SoundFocus(HWND window); | |
| 108 | |
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109 /* DJM: This is really from SDL_sysevents.c, we need it in |
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110 GDL_CreateWindow as well */ |
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111 LONG CALLBACK WinMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam); |
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112 |
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113 /* JFP: Implementation of ToUnicode() that works on 9x/ME/2K/XP */ |
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114 typedef int (WINAPI *ToUnicodeFN)(UINT, UINT, PBYTE, LPWSTR, int, UINT); |
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115 |
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116 extern ToUnicodeFN SDL_ToUnicode; |
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117 |
| 0 | 118 #endif /* SDL_lowvideo_h */ |