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macemu/SheepShaver/src/BeOS/video_window.h

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/*
* video_window.h - Window video modes
*
* SheepShaver (C) 1997-2002 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
*/
#include <DirectWindow.h>
// Messages
static const uint32 MSG_REDRAW = 'draw';
static const uint32 MSG_ABOUT_REQUESTED = B_ABOUT_REQUESTED;
static const uint32 MSG_REF_5HZ = ' 5Hz';
static const uint32 MSG_REF_7_5HZ = ' 7Hz';
static const uint32 MSG_REF_10HZ = '10Hz';
static const uint32 MSG_REF_15HZ = '15Hz';
static const uint32 MSG_REF_30HZ = '30Hz';
static const uint32 MSG_REF_60HZ = '60Hz';
static const uint32 MSG_MOUNT = 'moun';
static bool mouse_in_view; // Flag: Mouse pointer within bitmap view
// From sys_beos.cpp
extern void SysCreateVolumeMenu(BMenu *menu, uint32 msg);
extern void SysMountVolume(const char *name);
/*
* A simple view class for blitting a bitmap on the screen
*/
class BitmapView : public BView {
public:
BitmapView(BRect frame, BBitmap *bitmap) : BView(frame, "bitmap", B_FOLLOW_NONE, B_WILL_DRAW)
{
the_bitmap = bitmap;
}
virtual void Draw(BRect update)
{
if (the_bitmap)
DrawBitmap(the_bitmap, update, update);
}
virtual void MouseMoved(BPoint point, uint32 transit, const BMessage *message);
private:
BBitmap *the_bitmap;
};
/*
* Window class
*/
class MacWindow : public BDirectWindow {
public:
MacWindow(BRect frame);
virtual ~MacWindow();
virtual void MessageReceived(BMessage *msg);
virtual void DirectConnected(direct_buffer_info *info);
virtual void WindowActivated(bool active);
int32 frame_skip;
bool cursor_changed; // Flag: set new cursor image in tick function
private:
static status_t tick_func(void *arg);
BitmapView *main_view;
BBitmap *the_bitmap;
uint8 *the_buffer;
uint32 old_scroll_lock_state;
thread_id tick_thread;
bool tick_thread_active;
bool supports_direct_mode;
bool bit_bang;
sem_id drawing_sem;
color_space mode;
void *bits;
int32 bytes_per_row;
color_space pixel_format;
bool unclipped;
};
// Pointer to our window
static MacWindow *the_window = NULL;
/*
* Window constructor
*/
MacWindow::MacWindow(BRect frame) : BDirectWindow(frame, GetString(STR_WINDOW_TITLE), B_TITLED_WINDOW, B_NOT_RESIZABLE | B_NOT_CLOSABLE | B_NOT_ZOOMABLE)
{
D(bug("Window constructor\n"));
supports_direct_mode = SupportsWindowMode();
cursor_changed = false;
bit_bang = supports_direct_mode && PrefsFindBool("bitbang");
// Move window to right position
Lock();
MoveTo(80, 60);
// Allocate bitmap
{
BScreen scr(this);
mode = B_COLOR_8_BIT;
switch (VModes[cur_mode].viAppleMode) {
case APPLE_8_BIT:
mode = B_COLOR_8_BIT;
bit_bang = false;
break;
case APPLE_16_BIT:
mode = B_RGB_16_BIT;
if (scr.ColorSpace() != B_RGB15_BIG && scr.ColorSpace() != B_RGBA15_BIG)
bit_bang = false;
break;
case APPLE_32_BIT:
mode = B_RGB_32_BIT;
if (scr.ColorSpace() != B_RGB32_BIG && scr.ColorSpace() != B_RGBA32_BIG)
bit_bang = false;
break;
}
}
if (bit_bang) {
the_bitmap = NULL;
the_buffer = NULL;
} else {
the_bitmap = new BBitmap(frame, mode);
the_buffer = new uint8[VModes[cur_mode].viRowBytes * (VModes[cur_mode].viYsize + 2)]; // ("height + 2" for safety)
screen_base = (uint32)the_buffer;
}
// Create bitmap view
main_view = new BitmapView(frame, the_bitmap);
AddChild(main_view);
main_view->MakeFocus();
// Read frame skip prefs
frame_skip = PrefsFindInt32("frameskip");
// Set up menus
BRect bounds = Bounds();
bounds.OffsetBy(0, bounds.IntegerHeight() + 1);
BMenuItem *item;
BMenuBar *bar = new BMenuBar(bounds, "menu");
BMenu *menu = new BMenu(GetString(STR_WINDOW_MENU));
menu->AddItem(new BMenuItem(GetString(STR_WINDOW_ITEM_ABOUT), new BMessage(MSG_ABOUT_REQUESTED)));
menu->AddItem(new BSeparatorItem);
BMenu *submenu = new BMenu(GetString(STR_WINDOW_ITEM_REFRESH));
submenu->AddItem(new BMenuItem(GetString(STR_REF_5HZ_LAB), new BMessage(MSG_REF_5HZ)));
submenu->AddItem(new BMenuItem(GetString(STR_REF_7_5HZ_LAB), new BMessage(MSG_REF_7_5HZ)));
submenu->AddItem(new BMenuItem(GetString(STR_REF_10HZ_LAB), new BMessage(MSG_REF_10HZ)));
submenu->AddItem(new BMenuItem(GetString(STR_REF_15HZ_LAB), new BMessage(MSG_REF_15HZ)));
submenu->AddItem(new BMenuItem(GetString(STR_REF_30HZ_LAB), new BMessage(MSG_REF_30HZ)));
submenu->AddItem(new BMenuItem(GetString(STR_REF_60HZ_LAB), new BMessage(MSG_REF_60HZ)));
submenu->SetRadioMode(true);
if (frame_skip == 12) {
if ((item = submenu->FindItem(GetString(STR_REF_5HZ_LAB))) != NULL)
item->SetMarked(true);
} else if (frame_skip == 8) {
if ((item = submenu->FindItem(GetString(STR_REF_7_5HZ_LAB))) != NULL)
item->SetMarked(true);
} else if (frame_skip == 6) {
if ((item = submenu->FindItem(GetString(STR_REF_10HZ_LAB))) != NULL)
item->SetMarked(true);
} else if (frame_skip == 4) {
if ((item = submenu->FindItem(GetString(STR_REF_15HZ_LAB))) != NULL)
item->SetMarked(true);
} else if (frame_skip == 2) {
if ((item = submenu->FindItem(GetString(STR_REF_30HZ_LAB))) != NULL)
item->SetMarked(true);
} else if (frame_skip == 1) {
if ((item = submenu->FindItem(GetString(STR_REF_60HZ_LAB))) != NULL)
item->SetMarked(true);
}
menu->AddItem(submenu);
submenu = new BMenu(GetString(STR_WINDOW_ITEM_MOUNT));
SysCreateVolumeMenu(submenu, MSG_MOUNT);
menu->AddItem(submenu);
bar->AddItem(menu);
AddChild(bar);
SetKeyMenuBar(bar);
int mbar_height = bar->Frame().IntegerHeight() + 1;
// Resize window to fit menu bar
ResizeBy(0, mbar_height);
// Set mouse mode and scroll lock state
ADBSetRelMouseMode(false);
mouse_in_view = true;
old_scroll_lock_state = modifiers() & B_SCROLL_LOCK;
if (old_scroll_lock_state)
SetTitle(GetString(STR_WINDOW_TITLE_FROZEN));
else
SetTitle(GetString(STR_WINDOW_TITLE));
// Clear Mac cursor image
memset(MacCursor + 4, 0, 64);
// Keep window aligned to 8-byte frame buffer boundaries for faster blitting
SetWindowAlignment(B_BYTE_ALIGNMENT, 8);
// Create drawing semaphore (for direct mode)
drawing_sem = create_sem(0, "direct frame buffer access");
// Start 60Hz interrupt
tick_thread_active = true;
tick_thread = spawn_thread(tick_func, "Window Redraw", B_DISPLAY_PRIORITY, this);
resume_thread(tick_thread);
// Add filter for keyboard and mouse events
BMessageFilter *filter = new BMessageFilter(B_ANY_DELIVERY, B_ANY_SOURCE, filter_func);
main_view->AddFilter(filter);
// Show window
Unlock();
Show();
Sync();
D(bug("Window constructor done\n"));
}
/*
* Window destructor
*/
MacWindow::~MacWindow()
{
// Restore cursor
mouse_in_view = false;
be_app->SetCursor(B_HAND_CURSOR);
// Hide window
D(bug("Window destructor, hiding window\n"));
Hide();
Sync();
// Stop 60Hz interrupt
D(bug("Quitting tick thread\n"));
status_t l;
tick_thread_active = false;
delete_sem(drawing_sem);
while (wait_for_thread(tick_thread, &l) == B_INTERRUPTED) ;
D(bug("tick thread quit\n"));
// dispose allocated memory
delete the_bitmap;
delete[] the_buffer;
// Tell emulator that we're done
the_window = NULL;
D(bug("Window destructor done\n"));
}
/*
* Window connected/disconnected
*/
void MacWindow::DirectConnected(direct_buffer_info *info)
{
D(bug("DirectConnected, state %d\n", info->buffer_state));
switch (info->buffer_state & B_DIRECT_MODE_MASK) {
case B_DIRECT_STOP:
acquire_sem(drawing_sem);
break;
case B_DIRECT_MODIFY:
acquire_sem(drawing_sem);
case B_DIRECT_START:
bits = (void *)((uint8 *)info->bits + info->window_bounds.top * info->bytes_per_row + info->window_bounds.left * info->bits_per_pixel / 8);
bytes_per_row = info->bytes_per_row;
pixel_format = info->pixel_format;
unclipped = false;
if (info->clip_list_count == 1)
if (memcmp(&info->clip_bounds, &info->window_bounds, sizeof(clipping_rect)) == 0)
unclipped = true;
if (bit_bang) {
screen_base = (uint32)bits;
VModes[cur_mode].viRowBytes = bytes_per_row;
}
release_sem(drawing_sem);
break;
}
D(bug("DirectConnected done\n"));
}
/*
* Handles redraw messages
*/
void MacWindow::MessageReceived(BMessage *msg)
{
BMessage *msg2;
switch (msg->what) {
case MSG_REDRAW: {
// Prevent backlog of messages
MessageQueue()->Lock();
while ((msg2 = MessageQueue()->FindMessage(MSG_REDRAW, 0)) != NULL) {
MessageQueue()->RemoveMessage(msg2);
delete msg2;
}
MessageQueue()->Unlock();
// Convert Mac screen buffer to BeOS palette and blit
uint32 length = VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize;
if (mode == B_COLOR_8_BIT) {
// Palette conversion
uint8 *source = the_buffer - 1;
uint8 *dest = (uint8 *)the_bitmap->Bits() - 1;
for (int i=0; i<length; i++)
*++dest = remap_mac_be[*++source];
} else if (mode == B_RGB_16_BIT) {
// Endianess conversion
uint16 *source = (uint16 *)the_buffer;
uint16 *dest = (uint16 *)the_bitmap->Bits() - 1;
for (int i=0; i<length/2; i++)
*++dest = __lhbrx(source++, 0);
} else if (mode == B_RGB_32_BIT) {
// Endianess conversion
uint32 *source = (uint32 *)the_buffer;
uint32 *dest = (uint32 *)the_bitmap->Bits() - 1;
for (int i=0; i<length/4; i++)
*++dest = __lwbrx(source++, 0);
}
BRect update_rect = BRect(0, 0, VModes[cur_mode].viXsize-1, VModes[cur_mode].viYsize-1);
main_view->DrawBitmapAsync(the_bitmap, update_rect, update_rect);
break;
}
case MSG_ABOUT_REQUESTED:
OpenAboutWindow();
break;
case MSG_REF_5HZ:
PrefsReplaceInt32("frameskip", frame_skip = 12);
break;
case MSG_REF_7_5HZ:
PrefsReplaceInt32("frameskip", frame_skip = 8);
break;
case MSG_REF_10HZ:
PrefsReplaceInt32("frameskip", frame_skip = 6);
break;
case MSG_REF_15HZ:
PrefsReplaceInt32("frameskip", frame_skip = 4);
break;
case MSG_REF_30HZ:
PrefsReplaceInt32("frameskip", frame_skip = 2);
break;
case MSG_REF_60HZ:
PrefsReplaceInt32("frameskip", frame_skip = 1);
break;
case MSG_MOUNT: {
BMenuItem *source = NULL;
msg->FindPointer("source", (void **)&source);
if (source)
SysMountVolume(source->Label());
break;
}
default:
BDirectWindow::MessageReceived(msg);
}
}
/*
* Window activated/deactivated
*/
void MacWindow::WindowActivated(bool active)
{
video_activated = active;
if (active)
frame_skip = PrefsFindInt32("frameskip");
else
frame_skip = 12; // 5Hz in background
BDirectWindow::WindowActivated(active);
}
/*
* 60Hz interrupt routine
*/
status_t MacWindow::tick_func(void *arg)
{
MacWindow *obj = (MacWindow *)arg;
static int tick_counter = 0;
while (obj->tick_thread_active) {
// Wait
snooze(16667);
// Refresh window
if (!obj->bit_bang)
tick_counter++;
if (tick_counter >= obj->frame_skip) {
tick_counter = 0;
// Window title is determined by Scroll Lock state
uint32 scroll_lock_state = modifiers() & B_SCROLL_LOCK;
if (scroll_lock_state != obj->old_scroll_lock_state) {
if (scroll_lock_state)
obj->SetTitle(GetString(STR_WINDOW_TITLE_FROZEN));
else
obj->SetTitle(GetString(STR_WINDOW_TITLE));
obj->old_scroll_lock_state = scroll_lock_state;
}
// Refresh display unless Scroll Lock is down
if (!scroll_lock_state) {
// If direct frame buffer access is supported and the content area is completely visible,
// convert the Mac screen buffer directly. Otherwise, send a message to the window to do
// it into a bitmap
if (obj->supports_direct_mode) {
if (acquire_sem_etc(obj->drawing_sem, 1, B_TIMEOUT, 200000) == B_NO_ERROR) {
if (obj->unclipped && obj->mode == B_COLOR_8_BIT && obj->pixel_format == B_CMAP8) {
uint8 *source = obj->the_buffer - 1;
uint8 *dest = (uint8 *)obj->bits;
uint32 bytes_per_row = obj->bytes_per_row;
int xsize = VModes[cur_mode].viXsize;
int ysize = VModes[cur_mode].viYsize;
for (int y=0; y<ysize; y++) {
uint32 *p = (uint32 *)dest - 1;
for (int x=0; x<xsize/4; x++) {
uint32 c = remap_mac_be[*++source] << 24;
c |= remap_mac_be[*++source] << 16;
c |= remap_mac_be[*++source] << 8;
c |= remap_mac_be[*++source];
*++p = c;
}
dest += bytes_per_row;
}
} else if (obj->unclipped && obj->mode == B_RGB_16_BIT && (obj->pixel_format == B_RGB15_BIG || obj->pixel_format == B_RGBA15_BIG)) {
uint8 *source = obj->the_buffer;
uint8 *dest = (uint8 *)obj->bits;
uint32 sbpr = VModes[cur_mode].viRowBytes;
uint32 dbpr = obj->bytes_per_row;
int xsize = VModes[cur_mode].viXsize;
int ysize = VModes[cur_mode].viYsize;
for (int y=0; y<ysize; y++) {
memcpy(dest, source, xsize * 2);
source += sbpr;
dest += dbpr;
}
} else if (obj->unclipped && obj->mode == B_RGB_32_BIT && (obj->pixel_format == B_RGB32_BIG || obj->pixel_format == B_RGBA32_BIG)) {
uint8 *source = obj->the_buffer;
uint8 *dest = (uint8 *)obj->bits;
uint32 sbpr = VModes[cur_mode].viRowBytes;
uint32 dbpr = obj->bytes_per_row;
int xsize = VModes[cur_mode].viXsize;
int ysize = VModes[cur_mode].viYsize;
for (int y=0; y<ysize; y++) {
memcpy(dest, source, xsize * 4);
source += sbpr;
dest += dbpr;
}
} else
obj->PostMessage(MSG_REDRAW);
release_sem(obj->drawing_sem);
}
} else
obj->PostMessage(MSG_REDRAW);
}
}
// Set new cursor image if desired
if (obj->cursor_changed) {
if (mouse_in_view)
be_app->SetCursor(MacCursor);
obj->cursor_changed = false;
}
}
return 0;
}
/*
* Mouse moved
*/
void BitmapView::MouseMoved(BPoint point, uint32 transit, const BMessage *message)
{
switch (transit) {
case B_ENTERED_VIEW:
mouse_in_view = true;
be_app->SetCursor(MacCursor);
break;
case B_EXITED_VIEW:
mouse_in_view = false;
be_app->SetCursor(B_HAND_CURSOR);
break;
}
}
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