SDL_ph_mouse.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:5k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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: SDL_ph_mouse.c,v 1.4 2002/04/22 21:38:05 wmay Exp $";
- #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->ph_cursor.images); */
- 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)
- printf("cursor malloc failedn");
- 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;
- short cursor_is_defined = 0;
- /* Don't do anything if the display is gone */
- if ( window == NULL ) {
- return(0);
- }
- /* Set the photon cursor cursor, or blank if cursor is NULL */
- if ( window ) {
- 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;
- cursor_is_defined = 1;
- }
- else /* Ph_CURSOR_NONE */
- {
- PtSetArg( &args[0], Pt_ARG_CURSOR_TYPE,Ph_CURSOR_NONE, 0);
- nargs = 1;
- cursor_is_defined = 1;
- }
- if (cursor_is_defined)
- {
- SDL_Lock_EventThread();
- if (PtSetResources( window, nargs, args ) < 0 )
- {
- return(0);
- }
- SDL_Unlock_EventThread();
- }
- else
- return(0);
- }
- 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;
- }
- }