src/BeOS/video_screen.h

/*
 *  video_screen.h - Full screen video modes
 *
 *  SheepShaver (C) 1997-2004 Marc Hellwig and Christian Bauer
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


static bool drawing_enable = false;     // This flag indicated if the access to the screen is allowed
static int page_num;                            // Index of the currently displayed buffer


// Blitter functions
typedef void (*bitblt_ptr)(int32, int32, int32, int32, int32, int32);
static bitblt_ptr bitblt_hook;
typedef void (*fillrect8_ptr)(int32, int32, int32, int32, uint8);
static fillrect8_ptr fillrect8_hook;
typedef void (*fillrect32_ptr)(int32, int32, int32, int32, uint32);
static fillrect32_ptr fillrect32_hook;
typedef void (*invrect_ptr)(int32, int32, int32, int32);
static invrect_ptr invrect_hook;
typedef void (*sync_ptr)(void);
static sync_ptr sync_hook;


class MacScreen : public BWindowScreen {
public:
        MacScreen(const char *name, uint32 space);
        virtual ~MacScreen();
        virtual void Quit(void);
        virtual void ScreenConnected(bool active);

        bool palette_changed;

private:
        static status_t tick_func(void *arg);

        BView *view;                    // Main view for GetMouse()

        uint8 *frame_backup;    // Frame buffer backup when switching from/to different workspace
        bool quitting;                  // Flag for ScreenConnected: We are quitting, don't pause emulator thread
        bool first;                             // Flag for ScreenConnected: This is the first time we become active

        thread_id tick_thread;
        bool tick_thread_active;
};


// Pointer to our screen
static MacScreen *the_screen = NULL;

// Error code from BWindowScreen constructor
static status_t screen_error;

// to enable debugger mode.
#define SCREEN_DEBUG false


/*
 *  Screen constructor
 */

MacScreen::MacScreen(const char *name, uint32 space) : BWindowScreen(name, space, &screen_error, SCREEN_DEBUG), tick_thread(-1)
{
        D(bug("Screen constructor\n"));

        // Set all variables
        frame_backup = NULL;
        palette_changed = false;
        quitting = false;
        first = true;
        drawing_enable = false;
        ADBSetRelMouseMode(true);

        // Create view to poll the mouse
        view = new BView (BRect(0,0,VModes[cur_mode].viXsize-1,VModes[cur_mode].viYsize-1),NULL,B_FOLLOW_NONE,0);
        AddChild(view);

        // Start 60Hz interrupt
        tick_thread_active = true;
        tick_thread = spawn_thread(tick_func, "Polling sucks...", B_DISPLAY_PRIORITY, this);
        RegisterThread(tick_thread);
        resume_thread(tick_thread);

        // Add filter for keyboard and mouse events
        BMessageFilter *filter = new BMessageFilter(B_ANY_DELIVERY, B_ANY_SOURCE, filter_func);
        AddCommonFilter(filter);
        D(bug("Screen constructor done\n"));
}


/*
 *  Screen destructor
 */

MacScreen::~MacScreen()
{
        D(bug("Screen destructor, quitting tick thread\n"));

        // Stop 60Hz interrupt
        if (tick_thread > 0) {
                status_t l;
                tick_thread_active = false;
                while (wait_for_thread(tick_thread, &l) == B_INTERRUPTED) ;
        }
        D(bug("tick thread quit\n"));

        // Tell the emulator that we're done
        the_screen = NULL;
        D(bug("Screen destructor done\n"));
}


/*
 *  Screen closed
 */

void MacScreen::Quit(void)
{
        // Tell ScreenConnected() that we are quitting
        quitting = true;
        D(bug("MacScreen::Quit(), disconnecting\n"));
        Disconnect();
        D(bug("disconnected\n"));
        BWindowScreen::Quit();
}


/*
 *  Screen connected/disconnected
 */

void MacScreen::ScreenConnected(bool active)
{
        D(bug("ScreenConnected(%d)\n", active));
        graphics_card_info *info = CardInfo();
        D(bug(" card_info %p\n", info));

        if (active) {

                // Read graphics parameters
                D(bug(" active\n"));
                screen_base = (uint32)info->frame_buffer;
                D(bug(" screen_base %p\n", screen_base));
                VModes[cur_mode].viRowBytes = info->bytes_per_row;
                D(bug(" xmod %d\n", info->bytes_per_row));

                // Get acceleration functions
                if (PrefsFindBool("gfxaccel")) {
                        bitblt_hook = (bitblt_ptr)CardHookAt(7);
                        D(bug(" bitblt_hook %p\n", bitblt_hook));
                        fillrect8_hook = (fillrect8_ptr)CardHookAt(5);
                        D(bug(" fillrect8_hook %p\n", fillrect8_hook));
                        fillrect32_hook = (fillrect32_ptr)CardHookAt(6);
                        D(bug(" fillrect32_hook %p\n", fillrect32_hook));
                        invrect_hook = (invrect_ptr)CardHookAt(11);
                        D(bug(" invrect_hook %p\n", invrect_hook));
                        sync_hook = (sync_ptr)CardHookAt(10);
                        D(bug(" sync_hook %p\n", sync_hook));
                } else {
                        bitblt_hook = NULL;
                        fillrect8_hook = NULL;
                        fillrect32_hook = NULL;
                        invrect_hook = NULL;
                        sync_hook = NULL;
                }

                // The first time we got the screen, we need to init the Window
                if (first) {
                        D(bug(" first time\n"));
                        first = false;
                        page_num = 0;                                                           // current display : page 0
                } else {                                                                                // we get our screen back
                        D(bug(" not first time\n"));
                        // copy from backup bitmap to framebuffer
                        memcpy((void *)screen_base, frame_backup, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
                        // delete backup bitmap
                        delete[] frame_backup;                  
                        frame_backup = NULL;
                        // restore palette
                        if (info->bits_per_pixel == 8)
                                SetColorList(mac_pal);
                        // restart emul thread
                        release_sem(mac_os_lock);
                }

                // allow the drawing in the frame buffer
                D(bug(" enabling frame buffer access\n"));
                drawing_enable = true;
                video_activated = true;

        } else {

                drawing_enable = false;                                                 // stop drawing.
                video_activated = false;
                if (!quitting) {
                        // stop emul thread
                        acquire_sem(mac_os_lock);
                        // create bitmap and store frame buffer into
                        frame_backup = new uint8[VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize];
                        memcpy(frame_backup, (void *)screen_base, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
                }
        }
        D(bug("ScreenConnected() done\n"));
}


/*
 *  60Hz interrupt routine
 */

status_t MacScreen::tick_func(void *arg)
{
        MacScreen *obj = (MacScreen *)arg;
        while (obj->tick_thread_active) {

                // Wait
                snooze(16667);

                // Workspace activated? Then poll the mouse and change the palette if needed
                if (video_activated) {
                        BPoint pt;
                        uint32 button = 0;
                        if (obj->LockWithTimeout(200000) == B_OK) {
                                if (obj->palette_changed) {
                                        obj->palette_changed = false;
                                        obj->SetColorList(mac_pal);
                                }
                                obj->view->GetMouse(&pt, &button);
                                obj->Unlock();
                                set_mouse_position(320, 240);
                                ADBMouseMoved(int(pt.x) - 320, int(pt.y) - 240);
                                if (button & B_PRIMARY_MOUSE_BUTTON)
                                        ADBMouseDown(0);
                                if (!(button & B_PRIMARY_MOUSE_BUTTON))
                                        ADBMouseUp(0);
                                if (button & B_SECONDARY_MOUSE_BUTTON)
                                        ADBMouseDown(1);
                                if (!(button & B_SECONDARY_MOUSE_BUTTON))
                                        ADBMouseUp(1);
                                if (button & B_TERTIARY_MOUSE_BUTTON)
                                        ADBMouseDown(2);
                                if (!(button & B_TERTIARY_MOUSE_BUTTON))
                                        ADBMouseUp(2);
                        }
                }
        }
        return 0;
}
Revision:	1.2
Committed:	2004-01-12T15:37:19Z (20 years, 10 months ago) by cebix
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+1 -1 lines
Log Message:	Happy New Year! :)
#	User	Rev	Content
1	cebix	1.1	/*
2			* video_screen.h - Full screen video modes
3			*
4	cebix	1.2	* SheepShaver (C) 1997-2004 Marc Hellwig and Christian Bauer
5	cebix	1.1	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21
22			static bool drawing_enable = false; // This flag indicated if the access to the screen is allowed
23			static int page_num; // Index of the currently displayed buffer
24
25
26			// Blitter functions
27			typedef void (*bitblt_ptr)(int32, int32, int32, int32, int32, int32);
28			static bitblt_ptr bitblt_hook;
29			typedef void (*fillrect8_ptr)(int32, int32, int32, int32, uint8);
30			static fillrect8_ptr fillrect8_hook;
31			typedef void (*fillrect32_ptr)(int32, int32, int32, int32, uint32);
32			static fillrect32_ptr fillrect32_hook;
33			typedef void (*invrect_ptr)(int32, int32, int32, int32);
34			static invrect_ptr invrect_hook;
35			typedef void (*sync_ptr)(void);
36			static sync_ptr sync_hook;
37
38
39			class MacScreen : public BWindowScreen {
40			public:
41			MacScreen(const char *name, uint32 space);
42			virtual ~MacScreen();
43			virtual void Quit(void);
44			virtual void ScreenConnected(bool active);
45
46			bool palette_changed;
47
48			private:
49			static status_t tick_func(void *arg);
50
51			BView *view; // Main view for GetMouse()
52
53			uint8 *frame_backup; // Frame buffer backup when switching from/to different workspace
54			bool quitting; // Flag for ScreenConnected: We are quitting, don't pause emulator thread
55			bool first; // Flag for ScreenConnected: This is the first time we become active
56
57			thread_id tick_thread;
58			bool tick_thread_active;
59			};
60
61
62			// Pointer to our screen
63			static MacScreen *the_screen = NULL;
64
65			// Error code from BWindowScreen constructor
66			static status_t screen_error;
67
68			// to enable debugger mode.
69			#define SCREEN_DEBUG false
70
71
72			/*
73			* Screen constructor
74			*/
75
76			MacScreen::MacScreen(const char *name, uint32 space) : BWindowScreen(name, space, &screen_error, SCREEN_DEBUG), tick_thread(-1)
77			{
78			D(bug("Screen constructor\n"));
79
80			// Set all variables
81			frame_backup = NULL;
82			palette_changed = false;
83			quitting = false;
84			first = true;
85			drawing_enable = false;
86			ADBSetRelMouseMode(true);
87
88			// Create view to poll the mouse
89			view = new BView (BRect(0,0,VModes[cur_mode].viXsize-1,VModes[cur_mode].viYsize-1),NULL,B_FOLLOW_NONE,0);
90			AddChild(view);
91
92			// Start 60Hz interrupt
93			tick_thread_active = true;
94			tick_thread = spawn_thread(tick_func, "Polling sucks...", B_DISPLAY_PRIORITY, this);
95			RegisterThread(tick_thread);
96			resume_thread(tick_thread);
97
98			// Add filter for keyboard and mouse events
99			BMessageFilter *filter = new BMessageFilter(B_ANY_DELIVERY, B_ANY_SOURCE, filter_func);
100			AddCommonFilter(filter);
101			D(bug("Screen constructor done\n"));
102			}
103
104
105			/*
106			* Screen destructor
107			*/
108
109			MacScreen::~MacScreen()
110			{
111			D(bug("Screen destructor, quitting tick thread\n"));
112
113			// Stop 60Hz interrupt
114			if (tick_thread > 0) {
115			status_t l;
116			tick_thread_active = false;
117			while (wait_for_thread(tick_thread, &l) == B_INTERRUPTED) ;
118			}
119			D(bug("tick thread quit\n"));
120
121			// Tell the emulator that we're done
122			the_screen = NULL;
123			D(bug("Screen destructor done\n"));
124			}
125
126
127			/*
128			* Screen closed
129			*/
130
131			void MacScreen::Quit(void)
132			{
133			// Tell ScreenConnected() that we are quitting
134			quitting = true;
135			D(bug("MacScreen::Quit(), disconnecting\n"));
136			Disconnect();
137			D(bug("disconnected\n"));
138			BWindowScreen::Quit();
139			}
140
141
142			/*
143			* Screen connected/disconnected
144			*/
145
146			void MacScreen::ScreenConnected(bool active)
147			{
148			D(bug("ScreenConnected(%d)\n", active));
149			graphics_card_info *info = CardInfo();
150			D(bug(" card_info %p\n", info));
151
152			if (active) {
153
154			// Read graphics parameters
155			D(bug(" active\n"));
156			screen_base = (uint32)info->frame_buffer;
157			D(bug(" screen_base %p\n", screen_base));
158			VModes[cur_mode].viRowBytes = info->bytes_per_row;
159			D(bug(" xmod %d\n", info->bytes_per_row));
160
161			// Get acceleration functions
162			if (PrefsFindBool("gfxaccel")) {
163			bitblt_hook = (bitblt_ptr)CardHookAt(7);
164			D(bug(" bitblt_hook %p\n", bitblt_hook));
165			fillrect8_hook = (fillrect8_ptr)CardHookAt(5);
166			D(bug(" fillrect8_hook %p\n", fillrect8_hook));
167			fillrect32_hook = (fillrect32_ptr)CardHookAt(6);
168			D(bug(" fillrect32_hook %p\n", fillrect32_hook));
169			invrect_hook = (invrect_ptr)CardHookAt(11);
170			D(bug(" invrect_hook %p\n", invrect_hook));
171			sync_hook = (sync_ptr)CardHookAt(10);
172			D(bug(" sync_hook %p\n", sync_hook));
173			} else {
174			bitblt_hook = NULL;
175			fillrect8_hook = NULL;
176			fillrect32_hook = NULL;
177			invrect_hook = NULL;
178			sync_hook = NULL;
179			}
180
181			// The first time we got the screen, we need to init the Window
182			if (first) {
183			D(bug(" first time\n"));
184			first = false;
185			page_num = 0; // current display : page 0
186			} else { // we get our screen back
187			D(bug(" not first time\n"));
188			// copy from backup bitmap to framebuffer
189			memcpy((void )screen_base, frame_backup, VModes[cur_mode].viRowBytes VModes[cur_mode].viYsize);
190			// delete backup bitmap
191			delete[] frame_backup;
192			frame_backup = NULL;
193			// restore palette
194			if (info->bits_per_pixel == 8)
195			SetColorList(mac_pal);
196			// restart emul thread
197			release_sem(mac_os_lock);
198			}
199
200			// allow the drawing in the frame buffer
201			D(bug(" enabling frame buffer access\n"));
202			drawing_enable = true;
203			video_activated = true;
204
205			} else {
206
207			drawing_enable = false; // stop drawing.
208			video_activated = false;
209			if (!quitting) {
210			// stop emul thread
211			acquire_sem(mac_os_lock);
212			// create bitmap and store frame buffer into
213			frame_backup = new uint8[VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize];
214			memcpy(frame_backup, (void )screen_base, VModes[cur_mode].viRowBytes VModes[cur_mode].viYsize);
215			}
216			}
217			D(bug("ScreenConnected() done\n"));
218			}
219
220
221			/*
222			* 60Hz interrupt routine
223			*/
224
225			status_t MacScreen::tick_func(void *arg)
226			{
227			MacScreen obj = (MacScreen )arg;
228			while (obj->tick_thread_active) {
229
230			// Wait
231			snooze(16667);
232
233			// Workspace activated? Then poll the mouse and change the palette if needed
234			if (video_activated) {
235			BPoint pt;
236			uint32 button = 0;
237			if (obj->LockWithTimeout(200000) == B_OK) {
238			if (obj->palette_changed) {
239			obj->palette_changed = false;
240			obj->SetColorList(mac_pal);
241			}
242			obj->view->GetMouse(&pt, &button);
243			obj->Unlock();
244			set_mouse_position(320, 240);
245			ADBMouseMoved(int(pt.x) - 320, int(pt.y) - 240);
246			if (button & B_PRIMARY_MOUSE_BUTTON)
247			ADBMouseDown(0);
248			if (!(button & B_PRIMARY_MOUSE_BUTTON))
249			ADBMouseUp(0);
250			if (button & B_SECONDARY_MOUSE_BUTTON)
251			ADBMouseDown(1);
252			if (!(button & B_SECONDARY_MOUSE_BUTTON))
253			ADBMouseUp(1);
254			if (button & B_TERTIARY_MOUSE_BUTTON)
255			ADBMouseDown(2);
256			if (!(button & B_TERTIARY_MOUSE_BUTTON))
257			ADBMouseUp(2);
258			}
259			}
260			}
261			return 0;
262			}