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* Add SDL bug fix patch to misc/ directory 

* Add commentary of said patch to README
This commit is contained in:
Tim Angus 2008-08-09 15:19:59 +00:00
parent 317b953421
commit 60eb261185
2 changed files with 291 additions and 0 deletions
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20
README
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@ -393,6 +393,26 @@ SDL Keyboard Differences
annoying to use on many non-US keyboards. In response, an additional
toggleConsole bind has been added on the key combination Shift-Esc.
Mouse Input On Windows
ioq3 uses SDL to abstract away as much as possible from platform specific
implementation details. Unfortunately, SDL 1.2 suffers from a number of bugs
and limitations with respect to mouse input on the Windows platform. We
provide a patch against the SDL subversion 1.2 branch which fixes the
following problems:
* DirectX (and thus DirectInput) driver not functional when using an
OpenGL SDL_Surface.
* DirectX (and thus DirectInput) driver not functional in windowed mode.
* Mouse buttons 4-7 unusable with the DirectX driver due to DirectInput 5
not exposing the required functionality. Use DirectInput 7 instead.
* Low quality mouse input data when using the windib driver due to use of
WM_MOUSEMOVE events. Use GetCursorPos API call instead.
The patch can be found in misc/sdl-win32-mouse-fixes.diff.
PNG support
ioquake3 supports the use of PNG (Portable Network Graphic) images as
textures. It should be noted that the use of such images in a map will

271
misc/sdl-win32-mouse-fixes.diff Normal file
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@ -0,0 +1,271 @@
Index: src/video/wincommon/SDL_lowvideo.h
===================================================================
--- src/video/wincommon/SDL_lowvideo.h (revision 3927)
+++ src/video/wincommon/SDL_lowvideo.h (working copy)
@@ -67,8 +67,14 @@
(SDL_strcmp(this->name, "directx") == 0) \
)
-#define DINPUT_FULLSCREEN() DDRAW_FULLSCREEN()
+#define DINPUT_FULLSCREEN() \
+( \
+ ((SDL_VideoSurface->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) && \
+ (strcmp(this->name, "directx") == 0) \
+)
+#define DINPUT() (strcmp(this->name, "directx") == 0)
+
/* The main window -- and a function to set it for the audio */
#ifdef _WIN32_WCE
extern LPWSTR SDL_Appname;
Index: src/video/wincommon/SDL_sysevents.c
===================================================================
--- src/video/wincommon/SDL_sysevents.c (revision 3927)
+++ src/video/wincommon/SDL_sysevents.c (working copy)
@@ -431,27 +431,9 @@
posted = SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
}
- /* mouse has moved within the window */
- x = LOWORD(lParam);
- y = HIWORD(lParam);
- if ( mouse_relative ) {
- POINT center;
- center.x = (SDL_VideoSurface->w/2);
- center.y = (SDL_VideoSurface->h/2);
- x -= (Sint16)center.x;
- y -= (Sint16)center.y;
- if ( x || y ) {
- ClientToScreen(SDL_Window, &center);
- SetCursorPos(center.x, center.y);
- posted = SDL_PrivateMouseMotion(0, 1, x, y);
- }
- } else {
-#ifdef _WIN32_WCE
- if (SDL_VideoSurface)
- GapiTransform(this->hidden->userOrientation, this->hidden->hiresFix, &x, &y);
-#endif
- posted = SDL_PrivateMouseMotion(0, 0, x, y);
- }
+ /* Mouse motion is handled in DIB_PumpEvents or
+ * DX5_PumpEvents, depending on the video driver
+ * in use */
}
}
return(0);
@@ -480,7 +462,7 @@
case WM_XBUTTONDOWN:
case WM_XBUTTONUP: {
/* Mouse is handled by DirectInput when fullscreen */
- if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) {
+ if ( SDL_VideoSurface && ! DINPUT() ) {
WORD xbuttonval = 0;
Sint16 x, y;
Uint8 button, state;
@@ -544,20 +526,8 @@
mouse_pressed = 0;
}
}
- if ( mouse_relative ) {
- /* RJR: March 28, 2000
- report internal mouse position if in relative mode */
- x = 0; y = 0;
- } else {
- x = (Sint16)LOWORD(lParam);
- y = (Sint16)HIWORD(lParam);
-#ifdef _WIN32_WCE
- if (SDL_VideoSurface)
- GapiTransform(this->hidden->userOrientation, this->hidden->hiresFix, &x, &y);
-#endif
- }
posted = SDL_PrivateMouseButton(
- state, button, x, y);
+ state, button, 0, 0);
/*
* MSDN says:
@@ -578,7 +548,7 @@
#if (_WIN32_WINNT >= 0x0400) || (_WIN32_WINDOWS > 0x0400)
case WM_MOUSEWHEEL:
- if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) {
+ if ( SDL_VideoSurface && ! DINPUT() ) {
int move = (short)HIWORD(wParam);
if ( move ) {
Uint8 button;
Index: src/video/windib/SDL_dibevents.c
===================================================================
--- src/video/windib/SDL_dibevents.c (revision 3927)
+++ src/video/windib/SDL_dibevents.c (working copy)
@@ -262,6 +262,35 @@
return(DefWindowProc(hwnd, msg, wParam, lParam));
}
+static void DIB_GenerateMouseMotionEvent(void)
+{
+ extern int mouse_relative;
+ extern int posted;
+
+ POINT mouse;
+ GetCursorPos( &mouse );
+
+ if ( mouse_relative ) {
+ POINT center;
+ center.x = (SDL_VideoSurface->w/2);
+ center.y = (SDL_VideoSurface->h/2);
+ ClientToScreen(SDL_Window, &center);
+
+ mouse.x -= (Sint16)center.x;
+ mouse.y -= (Sint16)center.y;
+ if ( mouse.x || mouse.y ) {
+ SetCursorPos(center.x, center.y);
+ posted = SDL_PrivateMouseMotion(0, 1, mouse.x, mouse.y);
+ }
+ } else {
+#ifdef _WIN32_WCE
+ if (SDL_VideoSurface)
+ GapiTransform(this->hidden->userOrientation, this->hidden->hiresFix, &x, &y);
+#endif
+ posted = SDL_PrivateMouseMotion(0, 0, mouse.x, mouse.y);
+ }
+}
+
void DIB_PumpEvents(_THIS)
{
MSG msg;
@@ -271,6 +300,10 @@
DispatchMessage(&msg);
}
}
+
+ if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
+ DIB_GenerateMouseMotionEvent( );
+ }
}
static HKL hLayoutUS = NULL;
Index: src/video/windx5/SDL_dx5events.c
===================================================================
--- src/video/windx5/SDL_dx5events.c (revision 3927)
+++ src/video/windx5/SDL_dx5events.c (working copy)
@@ -143,7 +143,12 @@
(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE),
(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE), handle_keyboard },
{ "mouse",
- &GUID_SysMouse, &c_dfDIMouse,
+ &GUID_SysMouse,
+#if DIRECTINPUT_VERSION >= 0x700
+ &c_dfDIMouse2,
+#else
+ &c_dfDIMouse,
+#endif
(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE),
(DISCL_FOREGROUND|DISCL_EXCLUSIVE), handle_mouse },
{ NULL, NULL, NULL, 0, 0, NULL }
@@ -298,12 +303,6 @@
return;
}
- /* If we are in windowed mode, Windows is taking care of the mouse */
- if ( (SDL_PublicSurface->flags & SDL_OPENGL) ||
- !(SDL_PublicSurface->flags & SDL_FULLSCREEN) ) {
- return;
- }
-
/* If the mouse was lost, regain some sense of mouse state */
if ( mouse_lost ) {
POINT mouse_pos;
@@ -320,7 +319,11 @@
old_state = SDL_GetMouseState(NULL, NULL);
new_state = 0;
{ /* Get the new DirectInput button state for the mouse */
+#if DIRECTINPUT_VERSION >= 0x700
+ DIMOUSESTATE2 distate;
+#else
DIMOUSESTATE distate;
+#endif
HRESULT result;
result=IDirectInputDevice2_GetDeviceState(SDL_DIdev[1],
@@ -429,6 +432,12 @@
case DIMOFS_BUTTON1:
case DIMOFS_BUTTON2:
case DIMOFS_BUTTON3:
+#if DIRECTINPUT_VERSION >= 0x700
+ case DIMOFS_BUTTON4:
+ case DIMOFS_BUTTON5:
+ case DIMOFS_BUTTON6:
+ case DIMOFS_BUTTON7:
+#endif
if ( xrel || yrel ) {
posted = SDL_PrivateMouseMotion(
0, 1, xrel, yrel);
@@ -437,14 +446,13 @@
}
timestamp = 0;
button = (Uint8)(ptrbuf[i].dwOfs-DIMOFS_BUTTON0)+1;
- /* Button #2 on two button mice is button 3
- (the middle button is button 2)
- */
- if ( button == 2 ) {
- button = 3;
- } else
- if ( button == 3 ) {
- button = 2;
+ /* Map DI button numbers to SDL */
+ switch ( button ) {
+ case 2: button = SDL_BUTTON_RIGHT; break;
+ case 3: button = SDL_BUTTON_MIDDLE; break;
+ case 4: button = SDL_BUTTON_X1; break;
+ case 5: button = SDL_BUTTON_X2; break;
+ default: break;
}
if ( ptrbuf[i].dwData & 0x80 ) {
/* Grab mouse so we get mouse-up */
Index: src/video/windx5/directx.h
===================================================================
--- src/video/windx5/directx.h (revision 3927)
+++ src/video/windx5/directx.h (working copy)
@@ -72,7 +72,7 @@
/* We need these defines to mark what version of DirectX API we use */
#define DIRECTDRAW_VERSION 0x0700
#define DIRECTSOUND_VERSION 0x0500
-#define DIRECTINPUT_VERSION 0x0500
+#define DIRECTINPUT_VERSION 0x0700
#ifdef __GNUC__
#define NONAMELESSUNION
@@ -81,4 +81,20 @@
#include <dsound.h>
#include <dinput.h>
+#if DIRECTINPUT_VERSION >= 0x0700 && !defined(DIMOFS_BUTTON4)
+typedef struct _DIMOUSESTATE2 {
+ LONG lX;
+ LONG lY;
+ LONG lZ;
+ BYTE rgbButtons[8];
+} DIMOUSESTATE2, *LPDIMOUSESTATE2;
+
+#define DIMOFS_BUTTON4 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 4)
+#define DIMOFS_BUTTON5 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 5)
+#define DIMOFS_BUTTON6 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 6)
+#define DIMOFS_BUTTON7 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 7)
+
+extern const DIDATAFORMAT c_dfDIMouse2;
+#endif
+
#endif /* _directx_h */
Index: configure.in
===================================================================
--- configure.in (revision 3927)
+++ configure.in (working copy)
@@ -2442,7 +2442,7 @@
# Set up the system libraries we need
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm"
if test x$have_directx = xyes; then
- EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldxguid"
+ EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldxguid -ldinput8"
fi
# The Win32 platform requires special setup
SOURCES="$SOURCES $srcdir/src/main/win32/*.rc"