view src/video/photon/SDL_ph_mouse.c @ 821:30168104389f

Date: Sat, 14 Feb 2004 14:52:40 +0200 From: "Mike Gorchak" Subject: Batch of the QNX6 fixes for the SDL 1. Updated readme.QNX 2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update). 3. Fixed double-buffered fullscreen modes, now it works as needed. 4. Fixed Photon detection algorithm. 5. Fixed HWSURFACE update function. 6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon. 7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode. 8. Added available video ram amount support. 8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it. 9. Added hardware filling support. 10. Added hardware blits support (simple and colorkeyed). And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 14 Feb 2004 20:22:21 +0000
parents b8d311d90021
children c9b51268668f
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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
*/

#ifdef SAVE_RCSID
static char rcsid =
 "@(#) $Id$";
#endif

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "SDL_error.h"
#include "SDL_mouse.h"
#include "SDL_events_c.h"
#include "SDL_cursor_c.h"
#include "SDL_ph_mouse_c.h"

struct WMcursor
{
    PhCursorDef_t *ph_cursor ;
};

void ph_FreeWMCursor(_THIS, WMcursor *cursor)
{
    if (window != NULL)
    {
        SDL_Lock_EventThread();

        if (PtSetResource(window, Pt_ARG_CURSOR_TYPE, Ph_CURSOR_INHERIT, 0) < 0)
        {
            /* TODO: output error msg */
        }

        SDL_Unlock_EventThread();
    }	

    free(cursor);
}

WMcursor *ph_CreateWMCursor(_THIS, Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
{
    WMcursor* cursor;
    int clen, i;
    unsigned char bit, databit, maskbit;

    /* Allocate and initialize the cursor memory */
    if ((cursor = (WMcursor*)malloc(sizeof(WMcursor))) == NULL)
    {
        SDL_OutOfMemory();
        return(NULL);
    }
    memset(cursor,0,sizeof(WMcursor));

    cursor->ph_cursor = (PhCursorDef_t *) malloc(sizeof(PhCursorDef_t) + 32*4*2);

    if (cursor->ph_cursor == NULL)
    {
        SDL_SetError("ph_CreateWMCursor(): cursor malloc failed !\n");
        return NULL;
    }

    memset(cursor->ph_cursor,0,(sizeof(PhCursorDef_t) + 32*4*2));

    cursor->ph_cursor->hdr.type =Ph_RDATA_CURSOR;   
    cursor->ph_cursor->size1.x = (short)w;
    cursor->ph_cursor->size1.y = (short)h;
    cursor->ph_cursor->offset1.x = (short)hot_x;
    cursor->ph_cursor->offset1.y = (short)hot_y;
    cursor->ph_cursor->bytesperline1 = (char)w/8;
    cursor->ph_cursor->color1 = Pg_WHITE;
    cursor->ph_cursor->size2.x = (short)w;
    cursor->ph_cursor->size2.y = (short)h;
    cursor->ph_cursor->offset2.x = (short)hot_x;
    cursor->ph_cursor->offset2.y = (short)hot_y;
    cursor->ph_cursor->bytesperline2 = (char)w/8;
    cursor->ph_cursor->color2 = Pg_BLACK;

    clen = (w/8)*h;

    /* Copy the mask and the data to different bitmap planes */
    for (i=0; i<clen; ++i)
    {
        for (bit = 0; bit < 8; bit++)
        {
            databit = data[i] & (1 << bit);
            maskbit = mask[i] & (1 << bit);

            cursor->ph_cursor->images[i] |= (databit == 0) ? maskbit : 0;
            /* If the databit != 0, treat it as a black pixel and
             * ignore the maskbit (can't do an inverted color) */
            cursor->ph_cursor->images[i+clen] |= databit;
        }
    }

    /* #bytes following the hdr struct */
    cursor->ph_cursor->hdr.len =sizeof(PhCursorDef_t) + clen*2 - sizeof(PhRegionDataHdr_t); 

    return (cursor);
}

PhCursorDef_t ph_GetWMPhCursor(WMcursor *cursor)
{
    return (*cursor->ph_cursor);
}

int ph_ShowWMCursor(_THIS, WMcursor* cursor)
{
    PtArg_t args[3];
    int nargs = 0;

    /* Don't do anything if the display is gone */
    if (window == NULL)
    {
        return (0);
    }

    /* looks like photon can't draw mouse cursor in direct mode */
    if ((this->screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
    {
         /* disable the fake mouse in the fullscreen OpenGL mode */
         if ((this->screen->flags & SDL_OPENGL) == SDL_OPENGL)
         {
             cursor=NULL;
         }
         else
         {
             return (0);
         }
    }

    /* Set the photon cursor, or blank if cursor is NULL */
    if (cursor!=NULL)
    {
        PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_BITMAP, 0);
        /* Could set next to any PgColor_t value */
        PtSetArg(&args[1], Pt_ARG_CURSOR_COLOR, Ph_CURSOR_DEFAULT_COLOR , 0);
        PtSetArg(&args[2], Pt_ARG_BITMAP_CURSOR, cursor->ph_cursor, (cursor->ph_cursor->hdr.len + sizeof(PhRegionDataHdr_t)));
        nargs = 3;
    }
    else /* Ph_CURSOR_NONE */
    {
        PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_NONE, 0);
        nargs = 1;
    }

    SDL_Lock_EventThread();

    if (PtSetResources(window, nargs, args) < 0 )
    {
        return (0);
    }	

    SDL_Unlock_EventThread();

    return (1);
}


void ph_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
{
    short abs_x, abs_y;

    SDL_Lock_EventThread();
    PtGetAbsPosition( window, &abs_x, &abs_y );
    PhMoveCursorAbs( PhInputGroup(NULL), x + abs_x, y + abs_y );
    SDL_Unlock_EventThread();
}


void ph_CheckMouseMode(_THIS)
{
    /* If the mouse is hidden and input is grabbed, we use relative mode */
    if ( !(SDL_cursorstate & CURSOR_VISIBLE) && (this->input_grab != SDL_GRAB_OFF))
    {
        mouse_relative = 1;
    }
    else
    {
        mouse_relative = 0;
    }
}


void ph_UpdateMouse(_THIS)
{
    PhCursorInfo_t phcursor;
    short abs_x;
    short abs_y;

    /* Lock the event thread, in multi-threading environments */
    SDL_Lock_EventThread();

    /* synchronizing photon mouse cursor position and SDL mouse position, if cursor appears over window. */
    PtGetAbsPosition(window, &abs_x, &abs_y);
    PhQueryCursor(PhInputGroup(NULL), &phcursor);
    if (((phcursor.pos.x >= abs_x) && (phcursor.pos.x <= abs_x + this->screen->w)) &&
        ((phcursor.pos.y >= abs_y) && (phcursor.pos.y <= abs_y + this->screen->h)))
    {
        SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
        SDL_PrivateMouseMotion(0, 0, phcursor.pos.x-abs_x, phcursor.pos.y-abs_y);
    }
    else
    {
        SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
    }

    /* Unlock the event thread, in multi-threading environments */
    SDL_Unlock_EventThread();
}