symbian-qemu-0.9.1-12/libsdl-trunk/src/video/gem/SDL_gemmouse.c
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/libsdl-trunk/src/video/gem/SDL_gemmouse.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,204 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+/*
+ *	GEM Mouse manager
+ *
+ *	Patrice Mandin
+ */
+
+#include <gem.h>
+
+#include "SDL_mouse.h"
+#include "../../events/SDL_events_c.h"
+#include "../SDL_cursor_c.h"
+#include "SDL_gemmouse_c.h"
+#include "SDL_gemvideo.h"
+
+/* Defines */
+
+/*#define DEBUG_VIDEO_GEM 1*/
+
+#define MAXCURWIDTH 16
+#define MAXCURHEIGHT 16
+
+void GEM_FreeWMCursor(_THIS, WMcursor *cursor)
+{
+#ifdef DEBUG_VIDEO_GEM
+	printf("sdl:video:gem: free cursor\n");
+#endif
+
+	if (cursor == NULL)
+		return;
+	
+	graf_mouse(ARROW, NULL);
+
+	if (cursor->mform_p != NULL)
+		SDL_free(cursor->mform_p);
+
+	SDL_free(cursor);
+}
+
+WMcursor *GEM_CreateWMCursor(_THIS,
+		Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
+{
+	WMcursor *cursor;
+	MFORM *new_mform;
+	int i;
+
+#ifdef DEBUG_VIDEO_GEM
+	Uint16 *data1, *mask1;
+
+	printf("sdl:video:gem: create cursor\n");
+#endif
+
+	/* Check the size */
+	if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) {
+		SDL_SetError("Only cursors of dimension (%dx%d) are allowed",
+							MAXCURWIDTH, MAXCURHEIGHT);
+		return(NULL);
+	}
+
+	/* Allocate the cursor memory */
+	cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor));
+	if ( cursor == NULL ) {
+		SDL_OutOfMemory();
+		return(NULL);
+	}
+
+	/* Allocate mform */
+	new_mform = (MFORM *)SDL_malloc(sizeof(MFORM));		
+	if (new_mform == NULL) {
+		SDL_free(cursor);
+		SDL_OutOfMemory();
+		return(NULL);
+	}
+
+	cursor->mform_p = new_mform;
+
+	new_mform->mf_xhot = hot_x;
+	new_mform->mf_yhot = hot_y;
+	new_mform->mf_nplanes = 1;
+	new_mform->mf_fg = 0;
+	new_mform->mf_bg = 1;
+
+	for (i=0;i<MAXCURHEIGHT;i++) {
+		new_mform->mf_mask[i]=0;
+		new_mform->mf_data[i]=0;
+#ifdef DEBUG_VIDEO_GEM
+		data1 = (Uint16 *) &data[i<<1];
+		mask1 = (Uint16 *) &mask[i<<1];
+		printf("sdl:video:gem: source: line %d: data=0x%04x, mask=0x%04x\n",
+			i, data1[i], mask1[i]);
+#endif
+	}
+
+	if (w<=8) {
+		for (i=0;i<h;i++) {
+			new_mform->mf_mask[i]= mask[i]<<8;
+			new_mform->mf_data[i]= data[i]<<8;
+		}
+	} else {
+		for (i=0;i<h;i++) {
+			new_mform->mf_mask[i]= (mask[i<<1]<<8) | mask[(i<<1)+1];
+			new_mform->mf_data[i]= (data[i<<1]<<8) | data[(i<<1)+1];
+		}
+	}
+
+#ifdef DEBUG_VIDEO_GEM
+	for (i=0; i<h ;i++) {
+		printf("sdl:video:gem: cursor: line %d: data=0x%04x, mask=0x%04x\n",
+			i, new_mform->mf_data[i], new_mform->mf_mask[i]);
+	}
+
+	printf("sdl:video:gem: CreateWMCursor(): done\n");
+#endif
+
+	return cursor;
+}
+
+int GEM_ShowWMCursor(_THIS, WMcursor *cursor)
+{
+	GEM_cursor = cursor;
+
+	GEM_CheckMouseMode(this);
+
+#ifdef DEBUG_VIDEO_GEM
+	printf("sdl:video:gem: ShowWMCursor(0x%08x)\n", (long) cursor);
+#endif
+
+	return 1;
+}
+
+#if 0
+void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
+{
+	/* This seems to work only on AES 3.4 (Falcon) */
+
+	EVNTREC	warpevent;
+	
+	warpevent.ap_event = APPEVNT_MOUSE; 
+	warpevent.ap_value = (x << 16) | y;
+
+	appl_tplay(&warpevent, 1, 1000);
+}
+#endif
+
+void GEM_CheckMouseMode(_THIS)
+{
+	const Uint8 full_focus = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS);
+	int set_system_cursor = 1, show_system_cursor = 1;
+
+#ifdef DEBUG_VIDEO_GEM
+	printf("sdl:video:gem: check mouse mode\n");
+#endif
+
+	/* If the mouse is hidden and input is grabbed, we use relative mode */
+	GEM_mouse_relative = (!(SDL_cursorstate & CURSOR_VISIBLE))
+		&& (this->input_grab != SDL_GRAB_OFF)
+		&& (SDL_GetAppState() & SDL_APPACTIVE);
+	SDL_AtariXbios_LockMousePosition(GEM_mouse_relative);
+
+	if (SDL_cursorstate & CURSOR_VISIBLE) {
+		/* Application defined cursor only over the application window */
+		if ((SDL_GetAppState() & full_focus) == full_focus) {
+			if (GEM_cursor) {
+				graf_mouse(USER_DEF, GEM_cursor->mform_p);
+				set_system_cursor = 0;
+			} else {
+				show_system_cursor = 0;
+			}
+		}
+	} else {
+		/* Mouse cursor hidden only over the application window */
+		if ((SDL_GetAppState() & full_focus) == full_focus) {
+			set_system_cursor = 0;
+			show_system_cursor = 0;
+		}
+	}
+
+	graf_mouse(show_system_cursor ? M_ON : M_OFF, NULL);
+	if (set_system_cursor) {
+		graf_mouse(ARROW, NULL);
+	}
+}