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Date: Fri, 13 Feb 2004 17:03:16 +0100 From: Max Horn Subject: Modifier key fix The internal modifier state can get out of sync with reality. To trigger this, do for example this: 1) Launch an SDL app 2) Alt-click on the desktop (this will hide the SDL app). 3) Bring the SDL app back to the front 4) SDL will still think alt is pressed (and as such will treat left clicks like middle clicks). If you press and release alt, it'll be fine again. The attached patch cures this by rechecking the modifier state whenever we process an event.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 13 Feb 2004 17:57:16 +0000
parents b8d311d90021
children 30168104389f
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga
    slouken@libsdl.org
*/

#ifndef __SDL_PH_VIDEO_H__
#define __SDL_PH_VIDEO_H__

#include "SDL_mouse.h"
#include "SDL_sysvideo.h"

#include <Ph.h>
#include <Pt.h>
#include <photon/Pg.h>
#include <photon/PdDirect.h>

#ifdef HAVE_OPENGL
    #include <photon/PdGL.h>
#endif /* HAVE_OPENGL */

/* Hidden "this" pointer for the video functions */
#define _THIS	SDL_VideoDevice* this

#define PH_OGL_MAX_ATTRIBS 32

#define SDLPH_PAL_NONE    0x00000000L
#define SDLPH_PAL_EMULATE 0x00000001L
#define SDLPH_PAL_SYSTEM  0x00000002L

typedef struct
{
    unsigned char* Y;
    unsigned char* V;
    unsigned char* U;
} FRAMEDATA;

/* Mask values for SDL_ReallocFormat() */
struct ColourMasks
{
    Uint32 red;
    Uint32 green;
    Uint32 blue;
    Uint32 alpha;
    Uint32 bpp;
};

/* Private display data */
struct SDL_PrivateVideoData
{
    PgDisplaySettings_t mode_settings;	
    PtWidget_t *Window;                  /* used to handle input events */
    PhImage_t *image;	                 /* used to display image       */
#ifdef HAVE_OPENGL
    PdOpenGLContext_t* OGLContext;       /* OpenGL context              */
    Uint32 OGLFlags;                     /* OpenGL flags                */
    Uint32 OGLBPP;                       /* OpenGL bpp                  */
#endif /* HAVE_OPENGL */
    PgColor_t savedpal[_Pg_MAX_PALETTE];
    PgColor_t syspalph[_Pg_MAX_PALETTE];

    struct
    {
        PdDirectContext_t*    direct_context;
        PdOffscreenContext_t* offscreen_context;
        PdOffscreenContext_t* offscreen_backcontext;
        PhDrawContext_t*      oldDC;
        uint8_t*              dc_ptr;
        unsigned char*        CurrentFrameData;
        unsigned char*        FrameData0;
        unsigned char*        FrameData1;
        Uint32                current;
        Uint32                flags;
    } ocimage;

    PgHWCaps_t graphics_card_caps;  /* Graphics card caps at the moment of start   */
    PgVideoModeInfo_t desktop_mode; /* Current desktop video mode information      */
    int old_video_mode;             /* Stored mode before fullscreen switch        */
    int old_refresh_rate;           /* Stored refresh rate befor fullscreen switch */

    int mouse_relative;
    WMcursor* BlankCursor;

    Uint32 depth;	            /* current visual depth (not bpp)              */
    Uint32 desktopbpp;              /* bpp of desktop at the moment of start       */
    Uint32 desktoppal;              /* palette mode emulation or system            */

    int currently_fullscreen;
    int currently_hided;            /* 1 - window hided (minimazed), 0 - normal    */
    int currently_maximized;        /* 1 - window hided (minimazed), 0 - normal    */

    PhEvent_t* event;
    SDL_Overlay* overlay;
};

#define mode_settings        (this->hidden->mode_settings)
#define window	             (this->hidden->Window)
#define SDL_Image            (this->hidden->image)
#define OCImage              (this->hidden->ocimage)
#define old_video_mode       (this->hidden->old_video_mode)
#define old_refresh_rate     (this->hidden->old_refresh_rate)
#define graphics_card_caps   (this->hidden->graphics_card_caps)
#define desktopbpp           (this->hidden->desktopbpp)
#define desktoppal           (this->hidden->desktoppal)
#define savedpal             (this->hidden->savedpal)
#define syspalph             (this->hidden->syspalph)
#define currently_fullscreen (this->hidden->currently_fullscreen)
#define currently_hided      (this->hidden->currently_hided)
#define currently_maximized  (this->hidden->currently_maximized)
#define event                (this->hidden->event)
#define current_overlay      (this->hidden->overlay)
#define desktop_mode         (this->hidden->desktop_mode)
#define mouse_relative       (this->hidden->mouse_relative)
#define SDL_BlankCursor      (this->hidden->BlankCursor)

#ifdef HAVE_OPENGL
     #define oglctx               (this->hidden->OGLContext)
     #define oglflags             (this->hidden->OGLFlags)
     #define oglbpp               (this->hidden->OGLBPP)
#endif /* HAVE_OPENGL */

#endif /* __SDL_PH_VIDEO_H__ */