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/* |
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* video_screen.h - Full screen video modes |
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* |
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* SheepShaver (C) 1997-2008 Marc Hellwig and Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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|
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static bool drawing_enable = false; // This flag indicated if the access to the screen is allowed |
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static int page_num; // Index of the currently displayed buffer |
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|
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|
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// Blitter functions |
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typedef void (*bitblt_ptr)(int32, int32, int32, int32, int32, int32); |
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static bitblt_ptr bitblt_hook; |
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typedef void (*fillrect8_ptr)(int32, int32, int32, int32, uint8); |
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static fillrect8_ptr fillrect8_hook; |
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typedef void (*fillrect32_ptr)(int32, int32, int32, int32, uint32); |
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static fillrect32_ptr fillrect32_hook; |
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typedef void (*invrect_ptr)(int32, int32, int32, int32); |
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static invrect_ptr invrect_hook; |
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typedef void (*sync_ptr)(void); |
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static sync_ptr sync_hook; |
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|
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|
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class MacScreen : public BWindowScreen { |
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public: |
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MacScreen(const char *name, uint32 space); |
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virtual ~MacScreen(); |
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virtual void Quit(void); |
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virtual void ScreenConnected(bool active); |
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|
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bool palette_changed; |
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|
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private: |
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static status_t tick_func(void *arg); |
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|
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BView *view; // Main view for GetMouse() |
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|
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uint8 *frame_backup; // Frame buffer backup when switching from/to different workspace |
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bool quitting; // Flag for ScreenConnected: We are quitting, don't pause emulator thread |
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bool first; // Flag for ScreenConnected: This is the first time we become active |
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|
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thread_id tick_thread; |
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bool tick_thread_active; |
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}; |
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|
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|
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// Pointer to our screen |
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static MacScreen *the_screen = NULL; |
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|
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// Error code from BWindowScreen constructor |
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static status_t screen_error; |
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|
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// to enable debugger mode. |
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#define SCREEN_DEBUG false |
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|
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|
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/* |
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* Screen constructor |
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*/ |
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|
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MacScreen::MacScreen(const char *name, uint32 space) : BWindowScreen(name, space, &screen_error, SCREEN_DEBUG), tick_thread(-1) |
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{ |
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D(bug("Screen constructor\n")); |
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|
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// Set all variables |
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frame_backup = NULL; |
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palette_changed = false; |
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quitting = false; |
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first = true; |
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drawing_enable = false; |
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ADBSetRelMouseMode(true); |
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|
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// Create view to poll the mouse |
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view = new BView (BRect(0,0,VModes[cur_mode].viXsize-1,VModes[cur_mode].viYsize-1),NULL,B_FOLLOW_NONE,0); |
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AddChild(view); |
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|
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// Start 60Hz interrupt |
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tick_thread_active = true; |
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tick_thread = spawn_thread(tick_func, "Polling sucks...", B_DISPLAY_PRIORITY, this); |
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RegisterThread(tick_thread); |
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resume_thread(tick_thread); |
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|
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// Add filter for keyboard and mouse events |
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BMessageFilter *filter = new BMessageFilter(B_ANY_DELIVERY, B_ANY_SOURCE, filter_func); |
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AddCommonFilter(filter); |
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D(bug("Screen constructor done\n")); |
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} |
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|
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|
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/* |
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* Screen destructor |
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*/ |
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|
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MacScreen::~MacScreen() |
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{ |
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D(bug("Screen destructor, quitting tick thread\n")); |
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|
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// Stop 60Hz interrupt |
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if (tick_thread > 0) { |
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status_t l; |
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tick_thread_active = false; |
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while (wait_for_thread(tick_thread, &l) == B_INTERRUPTED) ; |
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} |
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D(bug("tick thread quit\n")); |
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|
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// Tell the emulator that we're done |
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the_screen = NULL; |
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D(bug("Screen destructor done\n")); |
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} |
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|
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|
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/* |
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* Screen closed |
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*/ |
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|
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void MacScreen::Quit(void) |
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{ |
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// Tell ScreenConnected() that we are quitting |
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quitting = true; |
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D(bug("MacScreen::Quit(), disconnecting\n")); |
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Disconnect(); |
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D(bug("disconnected\n")); |
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BWindowScreen::Quit(); |
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} |
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|
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|
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/* |
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* Screen connected/disconnected |
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*/ |
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|
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void MacScreen::ScreenConnected(bool active) |
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{ |
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D(bug("ScreenConnected(%d)\n", active)); |
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graphics_card_info *info = CardInfo(); |
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D(bug(" card_info %p\n", info)); |
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|
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if (active) { |
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|
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// Read graphics parameters |
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D(bug(" active\n")); |
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screen_base = (uint32)info->frame_buffer; |
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D(bug(" screen_base %p\n", screen_base)); |
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VModes[cur_mode].viRowBytes = info->bytes_per_row; |
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D(bug(" xmod %d\n", info->bytes_per_row)); |
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|
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// Get acceleration functions |
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if (PrefsFindBool("gfxaccel")) { |
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bitblt_hook = (bitblt_ptr)CardHookAt(7); |
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D(bug(" bitblt_hook %p\n", bitblt_hook)); |
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fillrect8_hook = (fillrect8_ptr)CardHookAt(5); |
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D(bug(" fillrect8_hook %p\n", fillrect8_hook)); |
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fillrect32_hook = (fillrect32_ptr)CardHookAt(6); |
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D(bug(" fillrect32_hook %p\n", fillrect32_hook)); |
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invrect_hook = (invrect_ptr)CardHookAt(11); |
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D(bug(" invrect_hook %p\n", invrect_hook)); |
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sync_hook = (sync_ptr)CardHookAt(10); |
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D(bug(" sync_hook %p\n", sync_hook)); |
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} else { |
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bitblt_hook = NULL; |
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fillrect8_hook = NULL; |
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fillrect32_hook = NULL; |
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invrect_hook = NULL; |
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sync_hook = NULL; |
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} |
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|
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// The first time we got the screen, we need to init the Window |
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if (first) { |
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D(bug(" first time\n")); |
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first = false; |
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page_num = 0; // current display : page 0 |
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} else { // we get our screen back |
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D(bug(" not first time\n")); |
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// copy from backup bitmap to framebuffer |
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memcpy((void *)screen_base, frame_backup, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize); |
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// delete backup bitmap |
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delete[] frame_backup; |
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frame_backup = NULL; |
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// restore palette |
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if (info->bits_per_pixel == 8) |
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SetColorList(mac_pal); |
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// restart emul thread |
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release_sem(mac_os_lock); |
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} |
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|
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// allow the drawing in the frame buffer |
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D(bug(" enabling frame buffer access\n")); |
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drawing_enable = true; |
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video_activated = true; |
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|
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} else { |
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|
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drawing_enable = false; // stop drawing. |
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video_activated = false; |
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if (!quitting) { |
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// stop emul thread |
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acquire_sem(mac_os_lock); |
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// create bitmap and store frame buffer into |
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frame_backup = new uint8[VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize]; |
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memcpy(frame_backup, (void *)screen_base, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize); |
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} |
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} |
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D(bug("ScreenConnected() done\n")); |
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} |
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|
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|
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/* |
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* 60Hz interrupt routine |
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*/ |
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|
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status_t MacScreen::tick_func(void *arg) |
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{ |
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MacScreen *obj = (MacScreen *)arg; |
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while (obj->tick_thread_active) { |
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|
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// Wait |
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snooze(16667); |
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|
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// Workspace activated? Then poll the mouse and change the palette if needed |
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if (video_activated) { |
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BPoint pt; |
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uint32 button = 0; |
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if (obj->LockWithTimeout(200000) == B_OK) { |
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if (obj->palette_changed) { |
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obj->palette_changed = false; |
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obj->SetColorList(mac_pal); |
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} |
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obj->view->GetMouse(&pt, &button); |
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obj->Unlock(); |
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set_mouse_position(320, 240); |
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ADBMouseMoved(int(pt.x) - 320, int(pt.y) - 240); |
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if (button & B_PRIMARY_MOUSE_BUTTON) |
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ADBMouseDown(0); |
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if (!(button & B_PRIMARY_MOUSE_BUTTON)) |
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ADBMouseUp(0); |
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if (button & B_SECONDARY_MOUSE_BUTTON) |
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ADBMouseDown(1); |
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if (!(button & B_SECONDARY_MOUSE_BUTTON)) |
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ADBMouseUp(1); |
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if (button & B_TERTIARY_MOUSE_BUTTON) |
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ADBMouseDown(2); |
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if (!(button & B_TERTIARY_MOUSE_BUTTON)) |
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ADBMouseUp(2); |
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} |
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} |
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} |
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return 0; |
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} |
