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macemu/SheepShaver/src/Unix/video_x.cpp

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/*
* video_x.cpp - Video/graphics emulation, X11 specific stuff
*
* SheepShaver (C) 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
*/
/*
* NOTES:
* The Ctrl key works like a qualifier for special actions:
* Ctrl-Tab = suspend DGA mode
* Ctrl-Esc = emergency quit
* Ctrl-F1 = mount floppy
* Ctrl-F5 = grab mouse (in windowed mode)
*/
#include "sysdeps.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/extensions/XShm.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <errno.h>
#include <pthread.h>
#include <semaphore.h>
#include <algorithm>
#ifdef ENABLE_FBDEV_DGA
# include <linux/fb.h>
# include <sys/ioctl.h>
#endif
#ifdef ENABLE_XF86_DGA
# include <X11/extensions/Xxf86dga.h>
#endif
#ifdef ENABLE_XF86_VIDMODE
# include <X11/extensions/xf86vmode.h>
#endif
#ifdef ENABLE_FBDEV_DGA
# include <sys/mman.h>
#endif
#include "main.h"
#include "adb.h"
#include "prefs.h"
#include "user_strings.h"
#include "about_window.h"
#include "video.h"
#include "video_defs.h"
#include "video_blit.h"
#define DEBUG 0
#include "debug.h"
#ifndef NO_STD_NAMESPACE
using std::sort;
#endif
// Constants
const char KEYCODE_FILE_NAME[] = DATADIR "/keycodes";
static const bool hw_mac_cursor_accl = true; // Flag: Enable MacOS to X11 copy of cursor?
// Global variables
static int32 frame_skip;
static int16 mouse_wheel_mode;
static int16 mouse_wheel_lines;
static bool redraw_thread_active = false; // Flag: Redraw thread installed
static pthread_attr_t redraw_thread_attr; // Redraw thread attributes
static volatile bool redraw_thread_cancel; // Flag: Cancel Redraw thread
static pthread_t redraw_thread; // Redraw thread
static volatile bool thread_stop_req = false;
static sem_t thread_stop_ack;
static sem_t thread_resume_req;
static bool local_X11; // Flag: X server running on local machine?
static bool has_dga = false; // Flag: Video DGA capable
static bool has_vidmode = false; // Flag: VidMode extension available
#ifdef ENABLE_VOSF
static bool use_vosf = true; // Flag: VOSF enabled
#else
static const bool use_vosf = false; // VOSF not possible
#endif
static bool palette_changed = false; // Flag: Palette changed, redraw thread must update palette
static bool ctrl_down = false; // Flag: Ctrl key pressed (for use with hotkeys)
static bool opt_down = false; // Flag: Opt/Alt key pressed (for use with hotkeys)
static bool cmd_down = false; // Flag: Cmd/Super/Win key pressed (for use with hotkeys)
static bool caps_on = false; // Flag: Caps Lock on
static bool quit_full_screen = false; // Flag: DGA close requested from redraw thread
static volatile bool quit_full_screen_ack = false; // Acknowledge for quit_full_screen
static bool emerg_quit = false; // Flag: Ctrl-Esc pressed, emergency quit requested from MacOS thread
static bool emul_suspended = false; // Flag: emulator suspended
static Window suspend_win; // "Suspend" window
static void *fb_save = NULL; // Saved frame buffer for suspend
static bool use_keycodes = false; // Flag: Use keycodes rather than keysyms
static int keycode_table[256]; // X keycode -> Mac keycode translation table
// X11 variables
static int screen; // Screen number
static int xdepth; // Depth of X screen
static int depth; // Depth of Mac frame buffer
static Window rootwin, the_win; // Root window and our window
static int num_depths = 0; // Number of available X depths
static int *avail_depths = NULL; // List of available X depths
static VisualFormat visualFormat;
static XVisualInfo visualInfo;
static Visual *vis;
static int color_class;
static int rshift, rloss, gshift, gloss, bshift, bloss; // Pixel format of DirectColor/TrueColor modes
static Colormap cmap[2]; // Two colormaps (DGA) for 8-bit mode
static XColor x_palette[256]; // Color palette to be used as CLUT and gamma table
static int orig_accel_numer, orig_accel_denom, orig_threshold; // Original mouse acceleration
static XColor black, white;
static unsigned long black_pixel, white_pixel;
static int eventmask;
static const int win_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | ExposureMask | StructureNotifyMask;
static const int dga_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask;
// Variables for window mode
static GC the_gc;
static XImage *img = NULL;
static XShmSegmentInfo shminfo;
static XImage *cursor_image, *cursor_mask_image;
static Pixmap cursor_map, cursor_mask_map;
static Cursor mac_cursor;
static GC cursor_gc, cursor_mask_gc;
static bool cursor_changed = false; // Flag: Cursor changed, window_func must update cursor
static bool have_shm = false; // Flag: SHM present and usable
static uint8 *the_buffer = NULL; // Pointer to Mac frame buffer
static uint8 *the_buffer_copy = NULL; // Copy of Mac frame buffer
static uint32 the_buffer_size; // Size of allocated the_buffer
// Variables for DGA mode
static bool is_fbdev_dga_mode = false; // Flag: Use FBDev DGA mode?
static int current_dga_cmap;
#ifdef ENABLE_FBDEV_DGA
static int fb_dev_fd = -1; // Handle to fb device name
static struct fb_fix_screeninfo fb_finfo; // Fixed info
static struct fb_var_screeninfo fb_vinfo; // Variable info
static struct fb_var_screeninfo fb_orig_vinfo; // Variable info to restore later
static struct fb_cmap fb_oldcmap; // Colormap to restore later
#endif
#ifdef ENABLE_XF86_VIDMODE
// Variables for XF86 VidMode support
static XF86VidModeModeInfo **x_video_modes; // Array of all available modes
static int num_x_video_modes;
#endif
// Mutex to protect palette
#if defined(HAVE_PTHREADS)
static pthread_mutex_t x_palette_lock = PTHREAD_MUTEX_INITIALIZER;
#define LOCK_PALETTE pthread_mutex_lock(&x_palette_lock)
#define UNLOCK_PALETTE pthread_mutex_unlock(&x_palette_lock)
#elif defined(HAVE_SPINLOCKS)
static spinlock_t x_palette_lock = SPIN_LOCK_UNLOCKED;
#define LOCK_PALETTE spin_lock(&x_palette_lock)
#define UNLOCK_PALETTE spin_unlock(&x_palette_lock)
#else
#define LOCK_PALETTE
#define UNLOCK_PALETTE
#endif
// Mutex to protect frame buffer
#if defined(HAVE_PTHREADS)
static pthread_mutex_t frame_buffer_lock = PTHREAD_MUTEX_INITIALIZER;
#define LOCK_FRAME_BUFFER pthread_mutex_lock(&frame_buffer_lock);
#define UNLOCK_FRAME_BUFFER pthread_mutex_unlock(&frame_buffer_lock);
#elif defined(HAVE_SPINLOCKS)
static spinlock_t frame_buffer_lock = SPIN_LOCK_UNLOCKED;
#define LOCK_FRAME_BUFFER spin_lock(&frame_buffer_lock)
#define UNLOCK_FRAME_BUFFER spin_unlock(&frame_buffer_lock)
#else
#define LOCK_FRAME_BUFFER
#define UNLOCK_FRAME_BUFFER
#endif
// Prototypes
static void *redraw_func(void *arg);
// From main_unix.cpp
extern char *x_display_name;
extern Display *x_display;
// From sys_unix.cpp
extern void SysMountFirstFloppy(void);
// From clip_unix.cpp
extern void ClipboardSelectionClear(XSelectionClearEvent *);
extern void ClipboardSelectionRequest(XSelectionRequestEvent *);
// Video acceleration through SIGSEGV
#ifdef ENABLE_VOSF
# include "video_vosf.h"
#endif
/*
* Utility functions
*/
static bool is_hotkey_down()
{
int hotkey = PrefsFindInt32("hotkey");
if (!hotkey) hotkey = 1;
return (ctrl_down || !(hotkey & 1)) &&
(opt_down || !(hotkey & 2)) &&
(cmd_down || !(hotkey & 4));
}
static int modify_opt_cmd(int code) {
static bool f, c;
if (!f) {
f = true;
c = PrefsFindBool("swap_opt_cmd");
}
if (c) {
switch (code) {
case 0x37: return 0x3a;
case 0x3a: return 0x37;
}
}
return code;
}
// Get current video mode
static inline int get_current_mode(void)
{
return VModes[cur_mode].viAppleMode;
}
// Find palette size for given color depth
static int palette_size(int mode)
{
switch (mode) {
case APPLE_1_BIT: return 2;
case APPLE_2_BIT: return 4;
case APPLE_4_BIT: return 16;
case APPLE_8_BIT: return 256;
case APPLE_16_BIT: return 32;
case APPLE_32_BIT: return 256;
default: return 0;
}
}
// Return bits per pixel for requested depth
static inline int bytes_per_pixel(int depth)
{
int bpp;
switch (depth) {
case 8:
bpp = 1;
break;
case 15: case 16:
bpp = 2;
break;
case 24: case 32:
bpp = 4;
break;
default:
abort();
}
return bpp;
}
// Map video_mode depth ID to numerical depth value
static inline int depth_of_video_mode(int mode)
{
int depth;
switch (mode) {
case APPLE_1_BIT:
depth = 1;
break;
case APPLE_2_BIT:
depth = 2;
break;
case APPLE_4_BIT:
depth = 4;
break;
case APPLE_8_BIT:
depth = 8;
break;
case APPLE_16_BIT:
depth = 16;
break;
case APPLE_32_BIT:
depth = 32;
break;
default:
abort();
}
return depth;
}
// Map RGB color to pixel value (this only works in TrueColor/DirectColor visuals)
static inline uint32 map_rgb(uint8 red, uint8 green, uint8 blue)
{
return ((red >> rloss) << rshift) | ((green >> gloss) << gshift) | ((blue >> bloss) << bshift);
}
// Do we have a visual for handling the specified Mac depth? If so, set the
// global variables "xdepth", "visualInfo", "vis" and "color_class".
static bool find_visual_for_depth(int depth)
{
D(bug("have_visual_for_depth(%d)\n", depth_of_video_mode(depth)));
// 1-bit works always and uses default visual
if (depth == APPLE_1_BIT) {
vis = DefaultVisual(x_display, screen);
visualInfo.visualid = XVisualIDFromVisual(vis);
int num = 0;
XVisualInfo *vi = XGetVisualInfo(x_display, VisualIDMask, &visualInfo, &num);
visualInfo = vi[0];
XFree(vi);
xdepth = visualInfo.depth;
color_class = visualInfo.c_class;
D(bug(" found visual ID 0x%02x, depth %d\n", visualInfo.visualid, xdepth));
return true;
}
// Calculate minimum and maximum supported X depth
int min_depth = 1, max_depth = 32;
switch (depth) {
#ifdef ENABLE_VOSF
case APPLE_2_BIT:
case APPLE_4_BIT: // VOSF blitters can convert 2/4/8-bit -> 8/16/32-bit
case APPLE_8_BIT:
min_depth = 8;
max_depth = 32;
break;
#else
case APPLE_2_BIT:
case APPLE_4_BIT: // 2/4-bit requires VOSF blitters
return false;
case APPLE_8_BIT: // 8-bit without VOSF requires an 8-bit visual
min_depth = 8;
max_depth = 8;
break;
#endif
case APPLE_16_BIT: // 16-bit requires a 15/16-bit visual
min_depth = 15;
max_depth = 16;
break;
case APPLE_32_BIT: // 32-bit requires a 24/32-bit visual
min_depth = 24;
max_depth = 32;
break;
}
D(bug(" minimum required X depth is %d, maximum supported X depth is %d\n", min_depth, max_depth));
// Try to find a visual for one of the color depths
bool visual_found = false;
for (int i=0; i<num_depths && !visual_found; i++) {
xdepth = avail_depths[i];
D(bug(" trying to find visual for depth %d\n", xdepth));
if (xdepth < min_depth || xdepth > max_depth)
continue;
// Determine best color class for this depth
switch (xdepth) {
case 1: // Try StaticGray or StaticColor
if (XMatchVisualInfo(x_display, screen, xdepth, StaticGray, &visualInfo)
|| XMatchVisualInfo(x_display, screen, xdepth, StaticColor, &visualInfo))
visual_found = true;
break;
case 8: // Need PseudoColor
if (XMatchVisualInfo(x_display, screen, xdepth, PseudoColor, &visualInfo))
visual_found = true;
break;
case 15:
case 16:
case 24:
case 32: // Try DirectColor first, as this will allow gamma correction
if (XMatchVisualInfo(x_display, screen, xdepth, DirectColor, &visualInfo)
|| XMatchVisualInfo(x_display, screen, xdepth, TrueColor, &visualInfo))
visual_found = true;
break;
default:
D(bug(" not a supported depth\n"));
break;
}
}
if (!visual_found)
return false;
// Visual was found
vis = visualInfo.visual;
color_class = visualInfo.c_class;
D(bug(" found visual ID 0x%02x, depth %d, class ", visualInfo.visualid, xdepth));
#if DEBUG
switch (color_class) {
case StaticGray: D(bug("StaticGray\n")); break;
case GrayScale: D(bug("GrayScale\n")); break;
case StaticColor: D(bug("StaticColor\n")); break;
case PseudoColor: D(bug("PseudoColor\n")); break;
case TrueColor: D(bug("TrueColor\n")); break;
case DirectColor: D(bug("DirectColor\n")); break;
}
#endif
return true;
}
/*
* Open display (window or fullscreen)
*/
// Set window name and class
static void set_window_name(Window w, int name)
{
const char *str = GetString(name);
XStoreName(x_display, w, str);
XSetIconName(x_display, w, str);
XClassHint *hints;
hints = XAllocClassHint();
if (hints) {
hints->res_name = "SheepShaver";
hints->res_class = "SheepShaver";
XSetClassHint(x_display, w, hints);
XFree(hints);
}
}
// Set window input focus flag
static void set_window_focus(Window w)
{
XWMHints *hints = XAllocWMHints();
if (hints) {
hints->input = True;
hints->initial_state = NormalState;
hints->flags = InputHint | StateHint;
XSetWMHints(x_display, w, hints);
XFree(hints);
}
}
// Set WM_DELETE_WINDOW protocol on window (preventing it from being destroyed by the WM when clicking on the "close" widget)
static Atom WM_DELETE_WINDOW = (Atom)0;
static void set_window_delete_protocol(Window w)
{
WM_DELETE_WINDOW = XInternAtom(x_display, "WM_DELETE_WINDOW", false);
XSetWMProtocols(x_display, w, &WM_DELETE_WINDOW, 1);
}
// Wait until window is mapped/unmapped
static void wait_mapped(Window w)
{
XEvent e;
do {
XMaskEvent(x_display, StructureNotifyMask, &e);
} while ((e.type != MapNotify) || (e.xmap.event != w));
}
static void wait_unmapped(Window w)
{
XEvent e;
do {
XMaskEvent(x_display, StructureNotifyMask, &e);
} while ((e.type != UnmapNotify) || (e.xmap.event != w));
}
// Disable mouse acceleration
static void disable_mouse_accel(void)
{
XChangePointerControl(x_display, True, False, 1, 1, 0);
}
// Restore mouse acceleration to original value
static void restore_mouse_accel(void)
{
XChangePointerControl(x_display, True, True, orig_accel_numer, orig_accel_denom, orig_threshold);
}
// Trap SHM errors
static bool shm_error = false;
static int (*old_error_handler)(Display *, XErrorEvent *);
static int error_handler(Display *d, XErrorEvent *e)
{
if (e->error_code == BadAccess) {
shm_error = true;
return 0;
} else
return old_error_handler(d, e);
}
// Open window
static bool open_window(int width, int height)
{
int aligned_width = (width + 15) & ~15;
int aligned_height = (height + 15) & ~15;
// Set absolute mouse mode
ADBSetRelMouseMode(false);
// Create window
XSetWindowAttributes wattr;
wattr.event_mask = eventmask = win_eventmask;
wattr.background_pixel = (vis == DefaultVisual(x_display, screen) ? black_pixel : 0);
wattr.border_pixel = 0;
wattr.backing_store = NotUseful;
wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
InputOutput, vis, CWEventMask | CWBackPixel | CWBorderPixel | CWBackingStore | CWColormap, &wattr);
// Set window name/class
set_window_name(the_win, STR_WINDOW_TITLE);
// Indicate that we want keyboard input
set_window_focus(the_win);
// Set delete protocol property
set_window_delete_protocol(the_win);
// Make window unresizable
XSizeHints *hints;
if ((hints = XAllocSizeHints()) != NULL) {
hints->min_width = width;
hints->max_width = width;
hints->min_height = height;
hints->max_height = height;
hints->flags = PMinSize | PMaxSize;
XSetWMNormalHints(x_display, the_win, hints);
XFree((char *)hints);
}
// Show window
XMapWindow(x_display, the_win);
wait_mapped(the_win);
// 1-bit mode is big-endian; if the X server is little-endian, we can't
// use SHM because that doesn't allow changing the image byte order
bool need_msb_image = (/*depth == 1 && */XImageByteOrder(x_display) == LSBFirst);
// Try to create and attach SHM image
have_shm = false;
if (local_X11 && !need_msb_image && XShmQueryExtension(x_display)) {
// Create SHM image ("height + 2" for safety)
img = XShmCreateImage(x_display, vis, depth == 1 ? 1 : xdepth, depth == 1 ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
shminfo.shmid = shmget(IPC_PRIVATE, (aligned_height + 2) * img->bytes_per_line, IPC_CREAT | 0777);
D(bug(" shm image created\n"));
the_buffer_copy = (uint8 *)shmat(shminfo.shmid, 0, 0);
shminfo.shmaddr = img->data = (char *)the_buffer_copy;
shminfo.readOnly = False;
// Try to attach SHM image, catching errors
shm_error = false;
old_error_handler = XSetErrorHandler(error_handler);
XShmAttach(x_display, &shminfo);
XSync(x_display, false);
XSetErrorHandler(old_error_handler);
if (shm_error) {
shmdt(shminfo.shmaddr);
XDestroyImage(img);
shminfo.shmid = -1;
} else {
have_shm = true;
shmctl(shminfo.shmid, IPC_RMID, 0);
}
D(bug(" shm image attached\n"));
}
// Create normal X image if SHM doesn't work ("height + 2" for safety)
if (!have_shm) {
int bytes_per_row = depth == 1 ? aligned_width/8 : TrivialBytesPerRow(aligned_width, DepthModeForPixelDepth(xdepth));
the_buffer_copy = (uint8 *)malloc((aligned_height + 2) * bytes_per_row);
img = XCreateImage(x_display, vis, depth == 1 ? 1 : xdepth, depth == 1 ? XYBitmap : ZPixmap, 0, (char *)the_buffer_copy, aligned_width, aligned_height, 32, bytes_per_row);
D(bug(" X image created\n"));
}
// 1-Bit mode is big-endian
if (need_msb_image) {
img->byte_order = MSBFirst;
img->bitmap_bit_order = MSBFirst;
}
#ifdef ENABLE_VOSF
use_vosf = true;
// Allocate memory for frame buffer (SIZE is extended to page-boundary)
the_host_buffer = the_buffer_copy;
the_buffer_size = page_extend((aligned_height + 2) * img->bytes_per_line);
the_buffer = (uint8 *)vm_acquire(the_buffer_size);
the_buffer_copy = (uint8 *)malloc(the_buffer_size);
D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
#else
// Allocate memory for frame buffer
the_buffer = (uint8 *)malloc((aligned_height + 2) * img->bytes_per_line);
D(bug("the_buffer = %p, the_buffer_copy = %p\n", the_buffer, the_buffer_copy));
#endif
screen_base = Host2MacAddr(the_buffer);
// Create GC
the_gc = XCreateGC(x_display, the_win, 0, 0);
XSetState(x_display, the_gc, black_pixel, white_pixel, GXcopy, AllPlanes);
// Create cursor
if (hw_mac_cursor_accl) {
cursor_image = XCreateImage(x_display, vis, 1, XYPixmap, 0, (char *)MacCursor + 4, 16, 16, 16, 2);
cursor_image->byte_order = MSBFirst;
cursor_image->bitmap_bit_order = MSBFirst;
cursor_mask_image = XCreateImage(x_display, vis, 1, XYPixmap, 0, (char *)MacCursor + 36, 16, 16, 16, 2);
cursor_mask_image->byte_order = MSBFirst;
cursor_mask_image->bitmap_bit_order = MSBFirst;
cursor_map = XCreatePixmap(x_display, the_win, 16, 16, 1);
cursor_mask_map = XCreatePixmap(x_display, the_win, 16, 16, 1);
cursor_gc = XCreateGC(x_display, cursor_map, 0, 0);
cursor_mask_gc = XCreateGC(x_display, cursor_mask_map, 0, 0);
mac_cursor = XCreatePixmapCursor(x_display, cursor_map, cursor_mask_map, &black, &white, 0, 0);
cursor_changed = false;
}
// Create no_cursor
else {
mac_cursor = XCreatePixmapCursor(x_display,
XCreatePixmap(x_display, the_win, 1, 1, 1),
XCreatePixmap(x_display, the_win, 1, 1, 1),
&black, &white, 0, 0);
XDefineCursor(x_display, the_win, mac_cursor);
}
// Init blitting routines
bool native_byte_order;
#ifdef WORDS_BIGENDIAN
native_byte_order = (XImageByteOrder(x_display) == MSBFirst);
#else
native_byte_order = (XImageByteOrder(x_display) == LSBFirst);
#endif
#ifdef ENABLE_VOSF
Screen_blitter_init(visualFormat, native_byte_order, depth);
#endif
// Set bytes per row
XSync(x_display, false);
return true;
}
// Open FBDev DGA display
static bool open_fbdev_dga(int width, int height)
{
#ifdef ENABLE_FBDEV_DGA
#ifdef ENABLE_XF86_VIDMODE
// Switch to best mode
if (has_vidmode) {
int best = -1;
for (int i = 0; i < num_x_video_modes; i++) {
if (x_video_modes[i]->hdisplay == width && x_video_modes[i]->vdisplay == height) {
best = i;
break;
}
};
assert(best != -1);
XF86VidModeSwitchToMode(x_display, screen, x_video_modes[best]);
XF86VidModeSetViewPort(x_display, screen, 0, 0);
D(bug("[fbdev] VideoMode %d: %d x %d @ %d\n", best,
x_video_modes[best]->hdisplay, x_video_modes[best]->vdisplay,
1000 * x_video_modes[best]->dotclock / (x_video_modes[best]->htotal * x_video_modes[best]->vtotal)));
}
#endif
if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo) != 0) {
D(bug("[fbdev] Can't get FSCREENINFO: %s\n", strerror(errno)));
return false;
}
D(bug("[fbdev] Device ID: %s\n", fb_finfo.id));
D(bug("[fbdev] smem_start: %p [%d bytes]\n", fb_finfo.smem_start, fb_finfo.smem_len));
int fb_type = fb_finfo.type;
const char *fb_type_str = NULL;
switch (fb_type) {
case FB_TYPE_PACKED_PIXELS: fb_type_str = "Packed Pixels"; break;
case FB_TYPE_PLANES: fb_type_str = "Non interleaved planes"; break;
case FB_TYPE_INTERLEAVED_PLANES: fb_type_str = "Interleaved planes"; break;
case FB_TYPE_TEXT: fb_type_str = "Text/attributes"; break;
case FB_TYPE_VGA_PLANES: fb_type_str = "EGA/VGA planes"; break;
default: fb_type_str = "<unknown>"; break;
}
D(bug("[fbdev] type: %s\n", fb_type_str));
if (fb_type != FB_TYPE_PACKED_PIXELS) {
D(bug("[fbdev] type '%s' not supported\n", fb_type_str));
return false;
}
int fb_visual = fb_finfo.visual;
const char *fb_visual_str;
switch (fb_visual) {
case FB_VISUAL_MONO01: fb_visual_str = "Monochrome 1=Black 0=White"; break;
case FB_VISUAL_MONO10: fb_visual_str = "Monochrome 1=While 0=Black"; break;
case FB_VISUAL_TRUECOLOR: fb_visual_str = "True color"; break;
case FB_VISUAL_PSEUDOCOLOR: fb_visual_str = "Pseudo color (like atari)"; break;
case FB_VISUAL_DIRECTCOLOR: fb_visual_str = "Direct color"; break;
case FB_VISUAL_STATIC_PSEUDOCOLOR: fb_visual_str = "Pseudo color readonly"; break;
default: fb_visual_str = "<unknown>"; break;
}
D(bug("[fbdev] visual: %s\n", fb_visual_str));
if (fb_visual != FB_VISUAL_TRUECOLOR && fb_visual != FB_VISUAL_DIRECTCOLOR) {
D(bug("[fbdev] visual '%s' not supported\n", fb_visual_str));
return false;
}
// Map frame buffer
the_buffer = (uint8 *)mmap(NULL, fb_finfo.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fb_dev_fd, 0);
if (the_buffer == MAP_FAILED) {
D(bug("[fbdev] Can't mmap /dev/fb0: %s\n", strerror(errno)));
return false;
}
// Set absolute mouse mode
ADBSetRelMouseMode(false);
// Create window
XSetWindowAttributes wattr;
wattr.event_mask = eventmask = dga_eventmask;
wattr.override_redirect = True;
the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
InputOutput, DefaultVisual(x_display, screen),
CWEventMask | CWOverrideRedirect, &wattr);
// Show window
XMapRaised(x_display, the_win);
wait_mapped(the_win);
// Grab mouse and keyboard
XGrabKeyboard(x_display, the_win, True,
GrabModeAsync, GrabModeAsync, CurrentTime);
XGrabPointer(x_display, the_win, True,
PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
GrabModeAsync, GrabModeAsync, the_win, None, CurrentTime);
disable_mouse_accel();
// Create no_cursor
mac_cursor = XCreatePixmapCursor(x_display,
XCreatePixmap(x_display, the_win, 1, 1, 1),
XCreatePixmap(x_display, the_win, 1, 1, 1),
&black, &white, 0, 0);
XDefineCursor(x_display, the_win, mac_cursor);
// Init blitting routines
int bytes_per_row = TrivialBytesPerRow((width + 7) & ~7, DepthModeForPixelDepth(depth));
#if ENABLE_VOSF
// Extract current screen color masks (we are in True Color mode)
VisualFormat visualFormat;
visualFormat.depth = xdepth = DefaultDepth(x_display, screen);
XMatchVisualInfo(x_display, screen, xdepth, TrueColor, &visualInfo);
assert(visualFormat.depth == visualInfo.depth);
visualFormat.Rmask = visualInfo.red_mask;
visualFormat.Gmask = visualInfo.green_mask;
visualFormat.Bmask = visualInfo.blue_mask;
D(bug("[fbdev] %d bpp, (%08x,%08x,%08x)\n",
visualFormat.depth,
visualFormat.Rmask, visualFormat.Gmask, visualFormat.Bmask));
D(bug("[fbdev] Mac depth %d bpp\n", depth));
// Screen_blitter_init() returns TRUE if VOSF is mandatory
// i.e. the framebuffer update function is not Blit_Copy_Raw
#ifdef WORDS_BIGENDIAN
const bool native_byte_order = (XImageByteOrder(x_display) == MSBFirst);
#else
const bool native_byte_order = (XImageByteOrder(x_display) == LSBFirst);
#endif
Screen_blitter_init(visualFormat, native_byte_order, depth);
// Allocate memory for frame buffer (SIZE is extended to page-boundary)
use_vosf = true;
the_host_buffer = the_buffer;
the_buffer_size = page_extend((height + 2) * bytes_per_row);
the_buffer_copy = (uint8 *)malloc(the_buffer_size);
the_buffer = (uint8 *)vm_acquire(the_buffer_size);
D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
#endif
// Set frame buffer base
D(bug("the_buffer = %p, use_vosf = %d\n", the_buffer, use_vosf));
screen_base = Host2MacAddr(the_buffer);
VModes[cur_mode].viRowBytes = bytes_per_row;
return true;
#else
ErrorAlert("SheepShaver has been compiled with DGA support disabled.");
return false;
#endif
}
// Open XF86 DGA display (!! should use X11 VidMode extensions to set mode)
static bool open_xf86_dga(int width, int height)
{
if (is_fbdev_dga_mode)
return false;
#ifdef ENABLE_XF86_DGA
// Set relative mouse mode
ADBSetRelMouseMode(true);
// Create window
XSetWindowAttributes wattr;
wattr.event_mask = eventmask = dga_eventmask;
wattr.override_redirect = True;
wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
InputOutput, vis, CWEventMask | CWOverrideRedirect |
(color_class == DirectColor ? CWColormap : 0), &wattr);
// Show window
XMapRaised(x_display, the_win);
wait_mapped(the_win);
#ifdef ENABLE_XF86_VIDMODE
// Switch to best mode
if (has_vidmode) {
int best = 0;
for (int i=1; i<num_x_video_modes; i++) {
if (x_video_modes[i]->hdisplay >= width && x_video_modes[i]->vdisplay >= height &&
x_video_modes[i]->hdisplay <= x_video_modes[best]->hdisplay && x_video_modes[i]->vdisplay <= x_video_modes[best]->vdisplay) {
best = i;
}
}
XF86VidModeSwitchToMode(x_display, screen, x_video_modes[best]);
XF86VidModeSetViewPort(x_display, screen, 0, 0);
}
#endif
// Establish direct screen connection
XMoveResizeWindow(x_display, the_win, 0, 0, width, height);
XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
XGrabKeyboard(x_display, rootwin, True, GrabModeAsync, GrabModeAsync, CurrentTime);
XGrabPointer(x_display, rootwin, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
int v_width, v_bank, v_size;
XF86DGAGetVideo(x_display, screen, (char **)&the_buffer, &v_width, &v_bank, &v_size);
XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
XF86DGASetViewPort(x_display, screen, 0, 0);
XF86DGASetVidPage(x_display, screen, 0);
// Set colormap
if (!IsDirectMode(get_current_mode())) {
XSetWindowColormap(x_display, the_win, cmap[current_dga_cmap = 0]);
XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
}
XSync(x_display, false);
// Init blitting routines
int bytes_per_row = TrivialBytesPerRow((v_width + 7) & ~7, DepthModeForPixelDepth(depth));
#if ENABLE_VOSF
bool native_byte_order;
#ifdef WORDS_BIGENDIAN
native_byte_order = (XImageByteOrder(x_display) == MSBFirst);
#else
native_byte_order = (XImageByteOrder(x_display) == LSBFirst);
#endif
#if REAL_ADDRESSING || DIRECT_ADDRESSING
// Screen_blitter_init() returns TRUE if VOSF is mandatory
// i.e. the framebuffer update function is not Blit_Copy_Raw
use_vosf = Screen_blitter_init(visualFormat, native_byte_order, depth);
if (use_vosf) {
// Allocate memory for frame buffer (SIZE is extended to page-boundary)
the_host_buffer = the_buffer;
the_buffer_size = page_extend((height + 2) * bytes_per_row);
the_buffer_copy = (uint8 *)malloc(the_buffer_size);
the_buffer = (uint8 *)vm_acquire(the_buffer_size);
D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
}
#else
use_vosf = false;
#endif
#endif
// Set frame buffer base
D(bug("the_buffer = %p, use_vosf = %d\n", the_buffer, use_vosf));
screen_base = Host2MacAddr(the_buffer);
VModes[cur_mode].viRowBytes = bytes_per_row;
return true;
#else
ErrorAlert("SheepShaver has been compiled with DGA support disabled.");
return false;
#endif
}
// Open DGA display
static bool open_dga(int width, int height)
{
bool display_open;
display_open = open_xf86_dga(width, height);
#ifdef ENABLE_FBDEV_DGA
// Try to fallback to FBDev DGA mode
if (!display_open) {
is_fbdev_dga_mode = true;
display_open = open_fbdev_dga(width, height);
}
#endif
// Common DGA display initialization
if (display_open) {
// Fake image to get display bounds in the refresh function
if ((img = (XImage *)malloc(sizeof(*img))) == NULL)
return false;
img->width = DisplayWidth(x_display, screen);
img->height = DisplayHeight(x_display, screen);
img->depth = is_fbdev_dga_mode ? xdepth : depth;
img->bytes_per_line = TrivialBytesPerRow(img->width, DepthModeForPixelDepth(img->depth));
}
return display_open;
}
static bool open_display(void)
{
D(bug("open_display()\n"));
const VideoInfo &mode = VModes[cur_mode];
// Get original mouse acceleration
XGetPointerControl(x_display, &orig_accel_numer, &orig_accel_denom, &orig_threshold);
// Find best available X visual
if (!find_visual_for_depth(mode.viAppleMode)) {
ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
return false;
}
// Build up visualFormat structure
visualFormat.fullscreen = (display_type == DIS_SCREEN);
visualFormat.depth = visualInfo.depth;
visualFormat.Rmask = visualInfo.red_mask;
visualFormat.Gmask = visualInfo.green_mask;
visualFormat.Bmask = visualInfo.blue_mask;
// Create color maps
if (color_class == PseudoColor || color_class == DirectColor) {
cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocAll);
cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocAll);
} else {
cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocNone);
cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocNone);
}
// Find pixel format of direct modes
if (color_class == DirectColor || color_class == TrueColor) {
rshift = gshift = bshift = 0;
rloss = gloss = bloss = 8;
uint32 mask;
for (mask=vis->red_mask; !(mask&1); mask>>=1)
++rshift;
for (; mask&1; mask>>=1)
--rloss;
for (mask=vis->green_mask; !(mask&1); mask>>=1)
++gshift;
for (; mask&1; mask>>=1)
--gloss;
for (mask=vis->blue_mask; !(mask&1); mask>>=1)
++bshift;
for (; mask&1; mask>>=1)
--bloss;
}
// Preset palette pixel values for CLUT or gamma table
if (color_class == DirectColor) {
int num = vis->map_entries;
for (int i=0; i<num; i++) {
int c = (i * 256) / num;
x_palette[i].pixel = map_rgb(c, c, c);
x_palette[i].flags = DoRed | DoGreen | DoBlue;
}
} else if (color_class == PseudoColor) {
for (int i=0; i<256; i++) {
x_palette[i].pixel = i;
x_palette[i].flags = DoRed | DoGreen | DoBlue;
}
}
// Load gray ramp to color map
int num = (color_class == DirectColor ? vis->map_entries : 256);
for (int i=0; i<num; i++) {
int c = (i * 256) / num;
x_palette[i].red = c * 0x0101;
x_palette[i].green = c * 0x0101;
x_palette[i].blue = c * 0x0101;
}
if (color_class == PseudoColor || color_class == DirectColor) {
XStoreColors(x_display, cmap[0], x_palette, num);
XStoreColors(x_display, cmap[1], x_palette, num);
}
#ifdef ENABLE_VOSF
// Load gray ramp to 8->16/32 expand map
if (!IsDirectMode(get_current_mode()) && xdepth > 8)
for (int i=0; i<256; i++)
ExpandMap[i] = map_rgb(i, i, i);
#endif
// Create display of requested type
display_type = mode.viType;
depth = depth_of_video_mode(mode.viAppleMode);
bool display_open;
switch (display_type) {
case DIS_SCREEN:
display_open = open_dga(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
break;
case DIS_WINDOW:
display_open = open_window(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
break;
default:
display_open = false;
break;
}
#ifdef ENABLE_VOSF
if (use_vosf) {
// Initialize the VOSF system
LOCK_VOSF;
if (!video_vosf_init()) {
ErrorAlert(GetString(STR_VOSF_INIT_ERR));
UNLOCK_VOSF;
return false;
}
UNLOCK_VOSF;
}
#endif
// Zero screen buffers, viRowBytes is initialized at this stage
if (display_open) {
memset(the_buffer, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
}
return display_open;
}
/*
* Close display
*/
// Close window
static void close_window(void)
{
if (have_shm) {
XShmDetach(x_display, &shminfo);
#ifdef ENABLE_VOSF
the_host_buffer = NULL; // don't free() in driver_base dtor
#else
the_buffer_copy = NULL; // don't free() in driver_base dtor
#endif
}
if (img) {
if (!have_shm)
img->data = NULL;
XDestroyImage(img);
}
if (have_shm) {
shmdt(shminfo.shmaddr);
shmctl(shminfo.shmid, IPC_RMID, 0);
}
if (the_gc)
XFreeGC(x_display, the_gc);
XFlush(x_display);
XSync(x_display, false);
}
// Close FBDev mode
static void close_fbdev_dga(void)
{
#ifdef ENABLE_FBDEV_DGA
uint8 *fb_base;
if (!use_vosf)
fb_base = the_buffer;
#ifdef ENABLE_VOSF
else
fb_base = the_host_buffer;
#endif
munmap(fb_base, fb_finfo.smem_len);
#endif
}
// Close XF86 DGA mode
static void close_xf86_dga(void)
{
#ifdef ENABLE_XF86_DGA
XF86DGADirectVideo(x_display, screen, 0);
#endif
}
// Close DGA mode
static void close_dga(void)
{
if (is_fbdev_dga_mode)
close_fbdev_dga();
else
close_xf86_dga();
XUngrabPointer(x_display, CurrentTime);
XUngrabKeyboard(x_display, CurrentTime);
#ifdef ENABLE_XF86_VIDMODE
if (has_vidmode)
XF86VidModeSwitchToMode(x_display, screen, x_video_modes[0]);
#endif
// Release fake image (it's not a normal XImage!)
free(img);
img = NULL;
if (!use_vosf) {
// don't free() the screen buffer in driver_base dtor
the_buffer = NULL;
}
#ifdef ENABLE_VOSF
else {
// don't free() the screen buffer in driver_base dtor
the_host_buffer = NULL;
}
#endif
}
static void close_display(void)
{
if (display_type == DIS_SCREEN)
close_dga();
else if (display_type == DIS_WINDOW)
close_window();
// Close window
if (the_win) {
XUnmapWindow(x_display, the_win);
wait_unmapped(the_win);
XDestroyWindow(x_display, the_win);
}
// Free colormaps
if (cmap[0]) {
XFreeColormap(x_display, cmap[0]);
cmap[0] = 0;
}
if (cmap[1]) {
XFreeColormap(x_display, cmap[1]);
cmap[1] = 0;
}
#ifdef ENABLE_VOSF
if (use_vosf) {
// Deinitialize VOSF
video_vosf_exit();
}
#endif
// Free frame buffer(s)
if (!use_vosf) {
if (the_buffer_copy) {
free(the_buffer_copy);
the_buffer_copy = NULL;
}
}
#ifdef ENABLE_VOSF
else {
// the_buffer shall always be mapped through vm_acquire() so that we can vm_protect() it at will
if (the_buffer != VM_MAP_FAILED) {
D(bug(" releasing the_buffer at %p (%d bytes)\n", the_buffer, the_buffer_size));
vm_release(the_buffer, the_buffer_size);
the_buffer = NULL;
}
if (the_host_buffer) {
D(bug(" freeing the_host_buffer at %p\n", the_host_buffer));
free(the_host_buffer);
the_host_buffer = NULL;
}
if (the_buffer_copy) {
D(bug(" freeing the_buffer_copy at %p\n", the_buffer_copy));
free(the_buffer_copy);
the_buffer_copy = NULL;
}
}
#endif
// Restore mouse acceleration
restore_mouse_accel();
}
/*
* Initialization
*/
// Init keycode translation table
static void keycode_init(void)
{
bool use_kc = PrefsFindBool("keycodes");
if (use_kc) {
// Get keycode file path from preferences
const char *kc_path = PrefsFindString("keycodefile");
// Open keycode table
FILE *f = fopen(kc_path ? kc_path : KEYCODE_FILE_NAME, "r");
if (f == NULL) {
char str[256];
sprintf(str, GetString(STR_KEYCODE_FILE_WARN), kc_path ? kc_path : KEYCODE_FILE_NAME, strerror(errno));
WarningAlert(str);
return;
}
// Default translation table
for (int i=0; i<256; i++)
keycode_table[i] = -1;
// Search for server vendor string, then read keycodes
const char *vendor = ServerVendor(x_display);
// Force use of MacX mappings on MacOS X with Apple's X server
int dummy;
if (XQueryExtension(x_display, "Apple-DRI", &dummy, &dummy, &dummy))
vendor = "MacX";
bool vendor_found = false;
char line[256];
while (fgets(line, 255, f)) {
// Read line
int len = strlen(line);
if (len == 0)
continue;
line[len-1] = 0;
// Comments begin with "#" or ";"
if (line[0] == '#' || line[0] == ';' || line[0] == 0)
continue;
if (vendor_found) {
// Read keycode
int x_code, mac_code;
if (sscanf(line, "%d %d", &x_code, &mac_code) == 2)
keycode_table[x_code & 0xff] = mac_code;
else
break;
} else {
// Search for vendor string
if (strstr(vendor, line) == vendor)
vendor_found = true;
}
}
// Keycode file completely read
fclose(f);
use_keycodes = vendor_found;
// Vendor not found? Then display warning
if (!vendor_found) {
char str[256];
sprintf(str, GetString(STR_KEYCODE_VENDOR_WARN), vendor, kc_path ? kc_path : KEYCODE_FILE_NAME);
WarningAlert(str);
return;
}
}
}
// Find Apple mode matching best specified dimensions
static int find_apple_resolution(int xsize, int ysize)
{
int apple_id;
if (xsize < 800)
apple_id = APPLE_640x480;
else if (xsize < 1024)
apple_id = APPLE_800x600;
else if (xsize < 1152)
apple_id = APPLE_1024x768;
else if (xsize < 1280) {
if (ysize < 900)
apple_id = APPLE_1152x768;
else
apple_id = APPLE_1152x900;
}
else if (xsize < 1600)
apple_id = APPLE_1280x1024;
else
apple_id = APPLE_1600x1200;
return apple_id;
}
// Find mode in list of supported modes
static int find_mode(int apple_mode, int apple_id, int type)
{
for (VideoInfo *p = VModes; p->viType != DIS_INVALID; p++) {
if (p->viType == type && p->viAppleID == apple_id && p->viAppleMode == apple_mode)
return p - VModes;
}
return -1;
}
// Add custom video mode
static void add_custom_mode(VideoInfo *&p, int type, uint32 x, uint32 y, int apple_mode, int apple_id)
{
p->viType = type;
p->viXsize = x;
p->viYsize = y;
p->viRowBytes = TrivialBytesPerRow(p->viXsize, apple_mode);
p->viAppleMode = apple_mode;
p->viAppleID = apple_id;
p++;
}
// Add mode to list of supported modes
static void add_mode(VideoInfo *&p, uint32 allow, uint32 test, int apple_mode, int apple_id, int type)
{
if (allow & test) {
uint32 x = 0, y = 0;
switch (apple_id) {
case APPLE_W_640x480:
case APPLE_640x480:
x = 640;
y = 480;
break;
case APPLE_W_800x600:
case APPLE_800x600:
x = 800;
y = 600;
break;
case APPLE_1024x768:
x = 1024;
y = 768;
break;
case APPLE_1152x768:
x = 1152;
y = 768;
break;
case APPLE_1152x900:
x = 1152;
y = 900;
break;
case APPLE_1280x1024:
x = 1280;
y = 1024;
break;
case APPLE_1600x1200:
x = 1600;
y = 1200;
break;
}
add_custom_mode(p, type, x, y, apple_mode, apple_id);
}
}
// Add standard list of windowed modes for given color depth
static void add_window_modes(VideoInfo *&p, int window_modes, int mode)
{
add_mode(p, window_modes, 1, mode, APPLE_W_640x480, DIS_WINDOW);
add_mode(p, window_modes, 2, mode, APPLE_W_800x600, DIS_WINDOW);
}
static bool has_mode(int x, int y)
{
#ifdef ENABLE_XF86_VIDMODE
if (has_vidmode) {
for (int i=0; i<num_x_video_modes; i++)
if (x_video_modes[i]->hdisplay == x && x_video_modes[i]->vdisplay == y)
return true;
return false;
}
#endif
return DisplayWidth(x_display, screen) >= x && DisplayHeight(x_display, screen) >= y;
}
bool VideoInit(void)
{
#ifdef ENABLE_VOSF
// Zero the mainBuffer structure
mainBuffer.dirtyPages = NULL;
mainBuffer.pageInfo = NULL;
#endif
// Check if X server runs on local machine
local_X11 = (strncmp(XDisplayName(x_display_name), ":", 1) == 0)
|| (strncmp(XDisplayName(x_display_name), "/", 1) == 0)
|| (strncmp(XDisplayName(x_display_name), "unix:", 5) == 0);
// Init keycode translation
keycode_init();
// Read frame skip prefs
frame_skip = PrefsFindInt32("frameskip");
if (frame_skip == 0)
frame_skip = 1;
// Read mouse wheel prefs
mouse_wheel_mode = PrefsFindInt32("mousewheelmode");
mouse_wheel_lines = PrefsFindInt32("mousewheellines");
// Init variables
private_data = NULL;
video_activated = true;
// Find screen and root window
screen = XDefaultScreen(x_display);
rootwin = XRootWindow(x_display, screen);
// Get sorted list of available depths
avail_depths = XListDepths(x_display, screen, &num_depths);
if (avail_depths == NULL) {
ErrorAlert(GetString(STR_UNSUPP_DEPTH_ERR));
return false;
}
sort(avail_depths, avail_depths + num_depths);
// Get screen depth
xdepth = DefaultDepth(x_display, screen);
#ifdef ENABLE_XF86_DGA
// DGA available?
int event_base, error_base;
is_fbdev_dga_mode = false;
if (local_X11 && XF86DGAQueryExtension(x_display, &event_base, &error_base)) {
int dga_flags = 0;
XF86DGAQueryDirectVideo(x_display, screen, &dga_flags);
has_dga = dga_flags & XF86DGADirectPresent;
#if defined(__linux__)
// Check r/w permission on /dev/mem for DGA mode to work
if (has_dga && access("/dev/mem", R_OK | W_OK) != 0)
has_dga = false;
#endif
} else
has_dga = false;
#endif
#ifdef ENABLE_XF86_VIDMODE
// VidMode available?
int vm_event_base, vm_error_base;
has_vidmode = XF86VidModeQueryExtension(x_display, &vm_event_base, &vm_error_base);
if (has_vidmode) {
int vm_major_version, vm_minor_version;
XF86VidModeQueryVersion(x_display, &vm_major_version, &vm_minor_version);
D(bug("VidMode extension %d.%d available\n", vm_major_version, vm_minor_version));
XF86VidModeGetAllModeLines(x_display, screen, &num_x_video_modes, &x_video_modes);
}
#endif
#ifdef ENABLE_FBDEV_DGA
// FBDev available?
bool has_fbdev_dga = false;
if (local_X11) {
if ((fb_dev_fd = open("/dev/fb0", O_RDWR)) > 0) {
if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo) != 0)
close(fb_dev_fd);
else {
has_fbdev_dga = true;
if (!has_dga) {
// Fallback to FBDev DGA mode if XF86 DGA is not possible
has_dga = true;
is_fbdev_dga_mode = true;
}
fb_orig_vinfo = fb_vinfo;
D(bug("Frame buffer device initial resolution: %dx%dx%d\n", fb_vinfo.xres, fb_vinfo.yres, fb_vinfo.bits_per_pixel));
}
}
}
#endif
// Find black and white colors
XParseColor(x_display, DefaultColormap(x_display, screen), "rgb:00/00/00", &black);
XAllocColor(x_display, DefaultColormap(x_display, screen), &black);
XParseColor(x_display, DefaultColormap(x_display, screen), "rgb:ff/ff/ff", &white);
XAllocColor(x_display, DefaultColormap(x_display, screen), &white);
black_pixel = BlackPixel(x_display, screen);
white_pixel = WhitePixel(x_display, screen);
// Mac screen depth follows X depth (for now)
int default_mode = APPLE_8_BIT;
switch (DefaultDepth(x_display, screen)) {
case 1:
default_mode = APPLE_1_BIT;
break;
case 8:
default_mode = APPLE_8_BIT;
break;
case 15: case 16:
default_mode = APPLE_16_BIT;
break;
case 24: case 32:
default_mode = APPLE_32_BIT;
break;
}
// Get screen mode from preferences
const char *mode_str = PrefsFindString("screen");
int default_width = 640, default_height = 480;
if (mode_str) {
display_type = DIS_INVALID;
if (sscanf(mode_str, "win/%d/%d", &default_width, &default_height) == 2)
display_type = DIS_WINDOW;
#ifdef ENABLE_XF86_DGA
else if (has_dga && sscanf(mode_str, "dga/%d/%d", &default_width, &default_height) == 2)
display_type = DIS_SCREEN;
#endif
#ifdef ENABLE_FBDEV_DGA
else if (has_fbdev_dga && sscanf(mode_str, "fbdev/%d/%d", &default_width, &default_height) == 2) {
is_fbdev_dga_mode = true;
display_type = DIS_SCREEN;
}
#endif
if (display_type == DIS_INVALID) {
D(bug("Invalid screen mode specified, defaulting to old modes selection\n"));
mode_str = NULL;
}
else {
if (default_width <= 0)
default_width = DisplayWidth(x_display, screen);
else if (default_width > DisplayWidth(x_display, screen))
default_width = DisplayWidth(x_display, screen);
if (default_height <= 0)
default_height = DisplayHeight(x_display, screen);
else if (default_height > DisplayHeight(x_display, screen))
default_height = DisplayHeight(x_display, screen);
}
}
// Construct video mode table
uint32 window_modes = PrefsFindInt32("windowmodes");
uint32 screen_modes = PrefsFindInt32("screenmodes");
if (!has_dga)
screen_modes = 0;
if (mode_str)
window_modes = screen_modes = 0;
else if (window_modes == 0 && screen_modes == 0)
window_modes |= 3; // Allow at least 640x480 and 800x600 window modes
VideoInfo *p = VModes;
if (mode_str) {
if (display_type == DIS_WINDOW) {
for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++) {
if (find_visual_for_depth(d)) {
if (default_width > 640 && default_height > 480)
add_mode(p, 3, 1, d, APPLE_W_640x480, DIS_WINDOW);
if (default_width > 800 && default_height > 600)
add_mode(p, 3, 2, d, APPLE_W_800x600, DIS_WINDOW);
add_custom_mode(p, display_type, default_width, default_height, d, APPLE_CUSTOM);
}
}
#ifdef ENABLE_VOSF
} else if (display_type == DIS_SCREEN && is_fbdev_dga_mode) {
for (unsigned int d = APPLE_1_BIT; d <= default_mode; d++)
if (find_visual_for_depth(d))
add_custom_mode(p, display_type, default_width, default_height, d, APPLE_CUSTOM);
#endif
} else
add_custom_mode(p, display_type, default_width, default_height, default_mode, APPLE_CUSTOM);
// Add extra VidMode capable modes
if (display_type == DIS_SCREEN) {
struct {
int w;
int h;
int apple_id;
}
video_modes[] = {
{ 640, 480, APPLE_640x480 },
{ 800, 600, APPLE_800x600 },
{ 1024, 768, APPLE_1024x768 },
{ 1152, 768, APPLE_1152x768 },
{ 1152, 900, APPLE_1152x900 },
{ 1280, 1024, APPLE_1280x1024 },
{ 1600, 1200, APPLE_1600x1200 },
{ 0, }
};
for (int i = 0; video_modes[i].w != 0; i++) {
const int w = video_modes[i].w;
const int h = video_modes[i].h;
if (w >= default_width || h >= default_height)
continue;
if (has_mode(w, h)) {
#ifdef ENABLE_VOSF
if (is_fbdev_dga_mode) {
for (unsigned int d = APPLE_1_BIT; d <= default_mode; d++)
if (find_visual_for_depth(d))
add_custom_mode(p, display_type, w, h, d, video_modes[i].apple_id);
} else
#endif
add_custom_mode(p, display_type, w, h, default_mode, video_modes[i].apple_id);
}
}
}
} else if (window_modes) {
for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++)
if (find_visual_for_depth(d))
add_window_modes(p, window_modes, d);
} else if (has_vidmode) {
if (has_mode(640, 480))
add_mode(p, screen_modes, 1, default_mode, APPLE_640x480, DIS_SCREEN);
if (has_mode(800, 600))
add_mode(p, screen_modes, 2, default_mode, APPLE_800x600, DIS_SCREEN);
if (has_mode(1024, 768))
add_mode(p, screen_modes, 4, default_mode, APPLE_1024x768, DIS_SCREEN);
if (has_mode(1152, 768))
add_mode(p, screen_modes, 64, default_mode, APPLE_1152x768, DIS_SCREEN);
if (has_mode(1152, 900))
add_mode(p, screen_modes, 8, default_mode, APPLE_1152x900, DIS_SCREEN);
if (has_mode(1280, 1024))
add_mode(p, screen_modes, 16, default_mode, APPLE_1280x1024, DIS_SCREEN);
if (has_mode(1600, 1200))
add_mode(p, screen_modes, 32, default_mode, APPLE_1600x1200, DIS_SCREEN);
} else if (screen_modes) {
int xsize = DisplayWidth(x_display, screen);
int ysize = DisplayHeight(x_display, screen);
int apple_id = find_apple_resolution(xsize, ysize);
p->viType = DIS_SCREEN;
p->viRowBytes = 0;
p->viXsize = xsize;
p->viYsize = ysize;
p->viAppleMode = default_mode;
p->viAppleID = apple_id;
p++;
}
p->viType = DIS_INVALID; // End marker
p->viRowBytes = 0;
p->viXsize = p->viYsize = 0;
p->viAppleMode = 0;
p->viAppleID = 0;
// Find default mode (window 640x480)
cur_mode = -1;
if (has_dga && screen_modes) {
int screen_width = DisplayWidth(x_display, screen);
int screen_height = DisplayHeight(x_display, screen);
int apple_id = find_apple_resolution(screen_width, screen_height);
if (apple_id != -1)
cur_mode = find_mode(default_mode, apple_id, DIS_SCREEN);
} else if (has_dga && mode_str)
cur_mode = find_mode(default_mode, APPLE_CUSTOM, DIS_SCREEN);
if (cur_mode == -1) {
// pick up first windowed mode available
for (VideoInfo *p = VModes; p->viType != DIS_INVALID; p++) {
if (p->viType == DIS_WINDOW && p->viAppleMode == default_mode) {
cur_mode = p - VModes;
break;
}
}
}
assert(cur_mode != -1);
#if DEBUG
D(bug("Available video modes:\n"));
for (p = VModes; p->viType != DIS_INVALID; p++) {
int bits = depth_of_video_mode(p->viAppleMode);
D(bug(" %dx%d (ID %02x), %d colors\n", p->viXsize, p->viYsize, p->viAppleID, 1 << bits));
}
#endif
// Open window/screen
if (!open_display()) {
ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
return false;
}
#if 0
// Ignore errors from now on
XSetErrorHandler(ignore_errors);
#endif
// Lock down frame buffer
XSync(x_display, false);
LOCK_FRAME_BUFFER;
// Start periodic thread
XSync(x_display, false);
if (sem_init(&thread_stop_ack, 0, 0) < 0)
return false;
if (sem_init(&thread_resume_req, 0, 0) < 0)
return false;
Set_pthread_attr(&redraw_thread_attr, 0);
redraw_thread_cancel = false;
redraw_thread_active = (pthread_create(&redraw_thread, &redraw_thread_attr, redraw_func, NULL) == 0);
D(bug("Redraw thread installed (%ld)\n", redraw_thread));
return true;
}
/*
* Deinitialization
*/
void VideoExit(void)
{
// Stop redraw thread
if (redraw_thread_active) {
redraw_thread_cancel = true;
pthread_cancel(redraw_thread);
pthread_join(redraw_thread, NULL);
sem_destroy(&thread_stop_ack);
sem_destroy(&thread_resume_req);
redraw_thread_active = false;
}
// Unlock frame buffer
UNLOCK_FRAME_BUFFER;
XSync(x_display, false);
D(bug(" frame buffer unlocked\n"));
#ifdef ENABLE_VOSF
if (use_vosf) {
// Deinitialize VOSF
video_vosf_exit();
}
#endif
// Close window and server connection
if (x_display != NULL) {
XSync(x_display, false);
close_display();
XFlush(x_display);
XSync(x_display, false);
}
#ifdef ENABLE_FBDEV_DGA
// Close framebuffer device
if (fb_dev_fd >= 0) {
close(fb_dev_fd);
fb_dev_fd = -1;
}
#endif
}
/*
* Suspend/resume emulator
*/
static void suspend_emul(void)
{
if (display_type == DIS_SCREEN) {
// Release ctrl key
ADBKeyUp(0x36);
ctrl_down = false;
ADBKeyUp(0x3a);
opt_down = false;
ADBKeyUp(0x37);
cmd_down = false;
// Lock frame buffer (this will stop the MacOS thread)
LOCK_FRAME_BUFFER;
// Save frame buffer
fb_save = malloc(VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
if (fb_save)
Mac2Host_memcpy(fb_save, screen_base, VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
// Close full screen display
#if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
#ifdef ENABLE_XF86_DGA
if (!is_fbdev_dga_mode)
XF86DGADirectVideo(x_display, screen, 0);
#endif
XUngrabPointer(x_display, CurrentTime);
XUngrabKeyboard(x_display, CurrentTime);
#endif
restore_mouse_accel();
XUnmapWindow(x_display, the_win);
wait_unmapped(the_win);
XSync(x_display, false);
// Open "suspend" window
XSetWindowAttributes wattr;
wattr.event_mask = KeyPressMask;
wattr.background_pixel = (vis == DefaultVisual(x_display, screen) ? black_pixel : 0);
wattr.backing_store = Always;
wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
suspend_win = XCreateWindow(x_display, rootwin, 0, 0, 512, 1, 0, xdepth,
InputOutput, vis, CWEventMask | CWBackPixel | CWBackingStore | CWColormap, &wattr);
set_window_name(suspend_win, STR_SUSPEND_WINDOW_TITLE);
set_window_focus(suspend_win);
XMapWindow(x_display, suspend_win);
emul_suspended = true;
}
}
static void resume_emul(void)
{
// Close "suspend" window
XDestroyWindow(x_display, suspend_win);
XSync(x_display, false);
// Reopen full screen display
XMapRaised(x_display, the_win);
wait_mapped(the_win);
XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
Window w = is_fbdev_dga_mode ? the_win : rootwin;
XGrabKeyboard(x_display, w, True, GrabModeAsync, GrabModeAsync, CurrentTime);
XGrabPointer(x_display, w, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, is_fbdev_dga_mode ? w : None, None, CurrentTime);
disable_mouse_accel();
#ifdef ENABLE_XF86_DGA
if (!is_fbdev_dga_mode) {
XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
XF86DGASetViewPort(x_display, screen, 0, 0);
}
#endif
XSync(x_display, false);
// the_buffer already contains the data to restore. i.e. since a temporary
// frame buffer is used when VOSF is actually used, fb_save is therefore
// not necessary.
#ifdef ENABLE_VOSF
if (use_vosf) {
LOCK_VOSF;
PFLAG_SET_ALL;
memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
UNLOCK_VOSF;
}
#endif
// Restore frame buffer
if (fb_save) {
#ifdef ENABLE_VOSF
// Don't copy fb_save to the temporary frame buffer in VOSF mode
if (!use_vosf)
#endif
Host2Mac_memcpy(screen_base, fb_save, VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
free(fb_save);
fb_save = NULL;
}
// Unlock frame buffer (and continue MacOS thread)
UNLOCK_FRAME_BUFFER;
emul_suspended = false;
}
/*
* Close screen in full-screen mode
*/
void VideoQuitFullScreen(void)
{
D(bug("VideoQuitFullScreen()\n"));
if (display_type == DIS_SCREEN) {
quit_full_screen = true;
while (!quit_full_screen_ack) ;
}
}
/*
* X11 event handling
*/
// Translate key event to Mac keycode
static int kc_decode(KeySym ks)
{
switch (ks) {
case XK_A: case XK_a: return 0x00;
case XK_B: case XK_b: return 0x0b;
case XK_C: case XK_c: return 0x08;
case XK_D: case XK_d: return 0x02;
case XK_E: case XK_e: return 0x0e;
case XK_F: case XK_f: return 0x03;
case XK_G: case XK_g: return 0x05;
case XK_H: case XK_h: return 0x04;
case XK_I: case XK_i: return 0x22;
case XK_J: case XK_j: return 0x26;
case XK_K: case XK_k: return 0x28;
case XK_L: case XK_l: return 0x25;
case XK_M: case XK_m: return 0x2e;
case XK_N: case XK_n: return 0x2d;
case XK_O: case XK_o: return 0x1f;
case XK_P: case XK_p: return 0x23;
case XK_Q: case XK_q: return 0x0c;
case XK_R: case XK_r: return 0x0f;
case XK_S: case XK_s: return 0x01;
case XK_T: case XK_t: return 0x11;
case XK_U: case XK_u: return 0x20;
case XK_V: case XK_v: return 0x09;
case XK_W: case XK_w: return 0x0d;
case XK_X: case XK_x: return 0x07;
case XK_Y: case XK_y: return 0x10;
case XK_Z: case XK_z: return 0x06;
case XK_1: case XK_exclam: return 0x12;
case XK_2: case XK_at: return 0x13;
case XK_3: case XK_numbersign: return 0x14;
case XK_4: case XK_dollar: return 0x15;
case XK_5: case XK_percent: return 0x17;
case XK_6: return 0x16;
case XK_7: return 0x1a;
case XK_8: return 0x1c;
case XK_9: return 0x19;
case XK_0: return 0x1d;
case XK_grave: case XK_asciitilde: return 0x0a;
case XK_minus: case XK_underscore: return 0x1b;
case XK_equal: case XK_plus: return 0x18;
case XK_bracketleft: case XK_braceleft: return 0x21;
case XK_bracketright: case XK_braceright: return 0x1e;
case XK_backslash: case XK_bar: return 0x2a;
case XK_semicolon: case XK_colon: return 0x29;
case XK_apostrophe: case XK_quotedbl: return 0x27;
case XK_comma: case XK_less: return 0x2b;
case XK_period: case XK_greater: return 0x2f;
case XK_slash: case XK_question: return 0x2c;
case XK_Tab: if (is_hotkey_down()) {suspend_emul(); return -1;} else return 0x30;
case XK_Return: return 0x24;
case XK_space: return 0x31;
case XK_BackSpace: return 0x33;
case XK_Delete: return 0x75;
case XK_Insert: return 0x72;
case XK_Home: case XK_Help: return 0x73;
case XK_End: return 0x77;
#ifdef __hpux
case XK_Prior: return 0x74;
case XK_Next: return 0x79;
#else
case XK_Page_Up: return 0x74;
case XK_Page_Down: return 0x79;
#endif
case XK_Control_L: return 0x36;
case XK_Control_R: return 0x36;
case XK_Shift_L: return 0x38;
case XK_Shift_R: return 0x38;
case XK_Alt_L: return 0x3a;
case XK_Alt_R: return 0x3a;
case XK_Meta_L: return 0x37;
case XK_Meta_R: return 0x37;
case XK_Menu: return 0x32;
case XK_Caps_Lock: return 0x39;
case XK_Num_Lock: return 0x47;
case XK_Up: return 0x3e;
case XK_Down: return 0x3d;
case XK_Left: return 0x3b;
case XK_Right: return 0x3c;
case XK_Escape: if (is_hotkey_down()) {quit_full_screen = true; emerg_quit = true; return -1;} else return 0x35;
case XK_F1: if (is_hotkey_down()) {SysMountFirstFloppy(); return -1;} else return 0x7a;
case XK_F2: return 0x78;
case XK_F3: return 0x63;
case XK_F4: return 0x76;
case XK_F5: return 0x60;
case XK_F6: return 0x61;
case XK_F7: return 0x62;
case XK_F8: return 0x64;
case XK_F9: return 0x65;
case XK_F10: return 0x6d;
case XK_F11: return 0x67;
case XK_F12: return 0x6f;
case XK_Print: return 0x69;
case XK_Scroll_Lock: return 0x6b;
case XK_Pause: return 0x71;
#if defined(XK_KP_Prior) && defined(XK_KP_Left) && defined(XK_KP_Insert) && defined (XK_KP_End)
case XK_KP_0: case XK_KP_Insert: return 0x52;
case XK_KP_1: case XK_KP_End: return 0x53;
case XK_KP_2: case XK_KP_Down: return 0x54;
case XK_KP_3: case XK_KP_Next: return 0x55;
case XK_KP_4: case XK_KP_Left: return 0x56;
case XK_KP_5: case XK_KP_Begin: return 0x57;
case XK_KP_6: case XK_KP_Right: return 0x58;
case XK_KP_7: case XK_KP_Home: return 0x59;
case XK_KP_8: case XK_KP_Up: return 0x5b;
case XK_KP_9: case XK_KP_Prior: return 0x5c;
case XK_KP_Decimal: case XK_KP_Delete: return 0x41;
#else
case XK_KP_0: return 0x52;
case XK_KP_1: return 0x53;
case XK_KP_2: return 0x54;
case XK_KP_3: return 0x55;
case XK_KP_4: return 0x56;
case XK_KP_5: return 0x57;
case XK_KP_6: return 0x58;
case XK_KP_7: return 0x59;
case XK_KP_8: return 0x5b;
case XK_KP_9: return 0x5c;
case XK_KP_Decimal: return 0x41;
#endif
case XK_KP_Add: return 0x45;
case XK_KP_Subtract: return 0x4e;
case XK_KP_Multiply: return 0x43;
case XK_KP_Divide: return 0x4b;
case XK_KP_Enter: return 0x4c;
case XK_KP_Equal: return 0x51;
}
return -1;
}
static int event2keycode(XKeyEvent &ev, bool key_down)
{
KeySym ks;
int i = 0;
do {
ks = XLookupKeysym(&ev, i++);
int as = kc_decode(ks);
if (as >= 0)
return as;
if (as == -2)
return as;
} while (ks != NoSymbol);
return -1;
}
static void handle_events(void)
{
// Handle events
for (;;) {
XEvent event;
XDisplayLock();
if (!XCheckMaskEvent(x_display, eventmask, &event)) {
// Handle clipboard events
if (XCheckTypedEvent(x_display, SelectionRequest, &event))
ClipboardSelectionRequest(&event.xselectionrequest);
else if (XCheckTypedEvent(x_display, SelectionClear, &event))
ClipboardSelectionClear(&event.xselectionclear);
// Window "close" widget clicked
else if (XCheckTypedEvent(x_display, ClientMessage, &event)) {
if (event.xclient.format == 32 && event.xclient.data.l[0] == WM_DELETE_WINDOW) {
ADBKeyDown(0x7f); // Power key
ADBKeyUp(0x7f);
}
}
XDisplayUnlock();
break;
}
XDisplayUnlock();
switch (event.type) {
// Mouse button
case ButtonPress: {
unsigned int button = ((XButtonEvent *)&event)->button;
if (button < 4)
ADBMouseDown(button - 1);
else if (button < 6) { // Wheel mouse
if (mouse_wheel_mode == 0) {
int key = (button == 5) ? 0x79 : 0x74; // Page up/down
ADBKeyDown(key);
ADBKeyUp(key);
} else {
int key = (button == 5) ? 0x3d : 0x3e; // Cursor up/down
for(int i=0; i<mouse_wheel_lines; i++) {
ADBKeyDown(key);
ADBKeyUp(key);
}
}
}
break;
}
case ButtonRelease: {
unsigned int button = ((XButtonEvent *)&event)->button;
if (button < 4)
ADBMouseUp(button - 1);
break;
}
// Mouse entered window
case EnterNotify:
if (event.xcrossing.mode != NotifyGrab && event.xcrossing.mode != NotifyUngrab)
ADBMouseMoved(event.xmotion.x, event.xmotion.y);
break;
// Mouse moved
case MotionNotify:
ADBMouseMoved(event.xmotion.x, event.xmotion.y);
break;
// Keyboard
case KeyPress: {
int code = event2keycode(event.xkey, true);
if(!emul_suspended)
{
if (code == 0x36) {
ctrl_down = true;
} else if (code == 0x3a) {
opt_down = true;
code = modify_opt_cmd(code);
} else if (code == 0x37) {
cmd_down = true;
code = modify_opt_cmd(code);
}
}
if (use_keycodes) {
if (code != -2) // This is called to process the hotkeys
code = keycode_table[event.xkey.keycode & 0xff];
}
if (code >= 0) {
if (!emul_suspended) {
if (code == 0x39) { // Caps Lock pressed
if (caps_on) {
ADBKeyUp(code);
caps_on = false;
} else {
ADBKeyDown(code);
caps_on = true;
}
} else
ADBKeyDown(code);
} else {
if (code == 0x31)
resume_emul(); // Space wakes us up
}
}
break;
}
case KeyRelease: {
int code = event2keycode(event.xkey, false);
if(!emul_suspended)
{
if (code == 0x36) {
ctrl_down = false;
} else if (code == 0x3a) {
opt_down = false;
code = modify_opt_cmd(code);
} else if (code == 0x37) {
cmd_down = false;
code = modify_opt_cmd(code);
}
}
if (use_keycodes) {
if (code != -2) // This is called to process the hotkeys
code = keycode_table[event.xkey.keycode & 0xff];
}
if (code >= 0 && code != 0x39) { // Don't propagate Caps Lock releases
ADBKeyUp(code);
}
break;
}
// Hidden parts exposed, force complete refresh
case Expose:
#ifdef ENABLE_VOSF
if (use_vosf) { // VOSF refresh
LOCK_VOSF;
PFLAG_SET_ALL;
memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
UNLOCK_VOSF;
}
else
#endif
memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
break;
}
}
}
/*
* Execute video VBL routine
*/
void VideoVBL(void)
{
if (emerg_quit)
QuitEmulator();
// Temporarily give up frame buffer lock (this is the point where
// we are suspended when the user presses Ctrl-Tab)
UNLOCK_FRAME_BUFFER;
LOCK_FRAME_BUFFER;
// Execute video VBL
if (private_data != NULL && private_data->interruptsEnabled)
VSLDoInterruptService(private_data->vslServiceID);
}
/*
* Change video mode
*/
int16 video_mode_change(VidLocals *csSave, uint32 ParamPtr)
{
/* return if no mode change */
if ((csSave->saveData == ReadMacInt32(ParamPtr + csData)) &&
(csSave->saveMode == ReadMacInt16(ParamPtr + csMode))) return noErr;
/* first find video mode in table */
for (int i=0; VModes[i].viType != DIS_INVALID; i++) {
if ((ReadMacInt16(ParamPtr + csMode) == VModes[i].viAppleMode) &&
(ReadMacInt32(ParamPtr + csData) == VModes[i].viAppleID)) {
csSave->saveMode = ReadMacInt16(ParamPtr + csMode);
csSave->saveData = ReadMacInt32(ParamPtr + csData);
csSave->savePage = ReadMacInt16(ParamPtr + csPage);
// Disable interrupts and pause redraw thread
thread_stop_req = true;
sem_wait(&thread_stop_ack);
thread_stop_req = false;
DisableInterrupt();
/* close old display */
close_display();
/* open new display */
cur_mode = i;
bool ok = open_display();
/* opening the screen failed? Then bail out */
if (!ok) {
ErrorAlert(GetString(STR_FULL_SCREEN_ERR));
QuitEmulator();
}
WriteMacInt32(ParamPtr + csBaseAddr, screen_base);
csSave->saveBaseAddr=screen_base;
csSave->saveData=VModes[cur_mode].viAppleID;/* First mode ... */
csSave->saveMode=VModes[cur_mode].viAppleMode;
// Enable interrupts and resume redraw thread
EnableInterrupt();
sem_post(&thread_resume_req);
return noErr;
}
}
return paramErr;
}
/*
* Set color palette
*/
void video_set_palette(void)
{
LOCK_PALETTE;
// Convert colors to XColor array
int mode = get_current_mode();
int num_in = palette_size(mode);
int num_out = 256;
bool stretch = false;
if (IsDirectMode(mode)) {
// If X is in 565 mode we have to stretch the gamma table from 32 to 64 entries
num_out = vis->map_entries;
stretch = true;
}
XColor *p = x_palette;
for (int i=0; i<num_out; i++) {
int c = (stretch ? (i * num_in) / num_out : i);
p->red = mac_pal[c].red * 0x0101;
p->green = mac_pal[c].green * 0x0101;
p->blue = mac_pal[c].blue * 0x0101;
p++;
}
#ifdef ENABLE_VOSF
// Recalculate pixel color expansion map
if (!IsDirectMode(mode) && xdepth > 8) {
for (int i=0; i<256; i++) {
int c = i & (num_in-1); // If there are less than 256 colors, we repeat the first entries (this makes color expansion easier)
ExpandMap[i] = map_rgb(mac_pal[c].red, mac_pal[c].green, mac_pal[c].blue);
}
// We have to redraw everything because the interpretation of pixel values changed
LOCK_VOSF;
PFLAG_SET_ALL;
if (display_type == DIS_SCREEN)
PFLAG_SET_VERY_DIRTY;
UNLOCK_VOSF;
}
#endif
// Tell redraw thread to change palette
palette_changed = true;
UNLOCK_PALETTE;
}
void video_set_gamma(int n_colors)
{
// Not implemented
}
/*
* Can we set the MacOS cursor image into the window?
*/
bool video_can_change_cursor(void)
{
return hw_mac_cursor_accl && (display_type != DIS_SCREEN);
}
/*
* Set cursor image for window
*/
void video_set_cursor(void)
{
cursor_changed = true;
}
/*
* Thread for window refresh, event handling and other periodic actions
*/
static void update_display(void)
{
// Incremental update code
int wide = 0, high = 0, x1, x2, y1, y2, i, j;
int bytes_per_row = VModes[cur_mode].viRowBytes;
int bytes_per_pixel = VModes[cur_mode].viRowBytes / VModes[cur_mode].viXsize;
uint8 *p, *p2;
// Check for first line from top and first line from bottom that have changed
y1 = 0;
for (j=0; j<VModes[cur_mode].viYsize; j++) {
if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
y1 = j;
break;
}
}
y2 = y1 - 1;
for (j=VModes[cur_mode].viYsize-1; j>=y1; j--) {
if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
y2 = j;
break;
}
}
high = y2 - y1 + 1;
// Check for first column from left and first column from right that have changed
if (high) {
if (depth == 1) {
x1 = VModes[cur_mode].viXsize;
for (j=y1; j<=y2; j++) {
p = &the_buffer[j * bytes_per_row];
p2 = &the_buffer_copy[j * bytes_per_row];
for (i=0; i<(x1>>3); i++) {
if (*p != *p2) {
x1 = i << 3;
break;
}
p++;
p2++;
}
}
x2 = x1;
for (j=y1; j<=y2; j++) {
p = &the_buffer[j * bytes_per_row];
p2 = &the_buffer_copy[j * bytes_per_row];
p += bytes_per_row;
p2 += bytes_per_row;
for (i=(VModes[cur_mode].viXsize>>3); i>(x2>>3); i--) {
p--;
p2--;
if (*p != *p2) {
x2 = i << 3;
break;
}
}
}
wide = x2 - x1;
// Update copy of the_buffer
if (high && wide) {
for (j=y1; j<=y2; j++) {
i = j * bytes_per_row + (x1 >> 3);
memcpy(&the_buffer_copy[i], &the_buffer[i], wide >> 3);
}
}
} else {
x1 = VModes[cur_mode].viXsize;
for (j=y1; j<=y2; j++) {
p = &the_buffer[j * bytes_per_row];
p2 = &the_buffer_copy[j * bytes_per_row];
for (i=0; i<x1; i++) {
if (memcmp(p, p2, bytes_per_pixel)) {
x1 = i;
break;
}
p += bytes_per_pixel;
p2 += bytes_per_pixel;
}
}
x2 = x1;
for (j=y1; j<=y2; j++) {
p = &the_buffer[j * bytes_per_row];
p2 = &the_buffer_copy[j * bytes_per_row];
p += bytes_per_row;
p2 += bytes_per_row;
for (i=VModes[cur_mode].viXsize; i>x2; i--) {
p -= bytes_per_pixel;
p2 -= bytes_per_pixel;
if (memcmp(p, p2, bytes_per_pixel)) {
x2 = i;
break;
}
}
}
wide = x2 - x1;
// Update copy of the_buffer
if (high && wide) {
for (j=y1; j<=y2; j++) {
i = j * bytes_per_row + x1 * bytes_per_pixel;
memcpy(&the_buffer_copy[i], &the_buffer[i], bytes_per_pixel * wide);
}
}
}
}
// Refresh display
if (high && wide) {
XDisplayLock();
if (have_shm)
XShmPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high, 0);
else
XPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high);
XDisplayUnlock();
}
}
const int VIDEO_REFRESH_HZ = 60;
const int VIDEO_REFRESH_DELAY = 1000000 / VIDEO_REFRESH_HZ;
static void handle_palette_changes(void)
{
LOCK_PALETTE;
if (palette_changed && !emul_suspended) {
palette_changed = false;
int mode = get_current_mode();
if (color_class == PseudoColor || color_class == DirectColor) {
int num = vis->map_entries;
bool set_clut = true;
if (!IsDirectMode(mode) && color_class == DirectColor) {
if (display_type == DIS_WINDOW)
set_clut = false; // Indexed mode on true color screen, don't set CLUT
}
if (set_clut) {
XDisplayLock();
XStoreColors(x_display, cmap[0], x_palette, num);
XStoreColors(x_display, cmap[1], x_palette, num);
XSync(x_display, false);
XDisplayUnlock();
}
}
#ifdef ENABLE_XF86_DGA
if (display_type == DIS_SCREEN && !is_fbdev_dga_mode) {
current_dga_cmap ^= 1;
if (!IsDirectMode(mode) && cmap[current_dga_cmap])
XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
}
#endif
}
UNLOCK_PALETTE;
}
static void *redraw_func(void *arg)
{
int fd = ConnectionNumber(x_display);
uint64 start = GetTicks_usec();
int64 ticks = 0;
uint64 next = GetTicks_usec() + VIDEO_REFRESH_DELAY;
while (!redraw_thread_cancel) {
// Pause if requested (during video mode switches)
if (thread_stop_req) {
sem_post(&thread_stop_ack);
sem_wait(&thread_resume_req);
}
int64 delay = next - GetTicks_usec();
if (delay < -VIDEO_REFRESH_DELAY) {
// We are lagging far behind, so we reset the delay mechanism
next = GetTicks_usec();
} else if (delay <= 0) {
// Delay expired, refresh display
next += VIDEO_REFRESH_DELAY;
ticks++;
// Handle X11 events
handle_events();
// Quit DGA mode if requested
if (quit_full_screen) {
quit_full_screen = false;
if (display_type == DIS_SCREEN) {
XDisplayLock();
#if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
#ifdef ENABLE_XF86_DGA
if (!is_fbdev_dga_mode)
XF86DGADirectVideo(x_display, screen, 0);
#endif
XUngrabPointer(x_display, CurrentTime);
XUngrabKeyboard(x_display, CurrentTime);
XUnmapWindow(x_display, the_win);
wait_unmapped(the_win);
XDestroyWindow(x_display, the_win);
#endif
XSync(x_display, false);
XDisplayUnlock();
quit_full_screen_ack = true;
return NULL;
}
}
// Refresh display and set cursor image in window mode
static int tick_counter = 0;
if (display_type == DIS_WINDOW) {
tick_counter++;
if (tick_counter >= frame_skip) {
tick_counter = 0;
// Update display
#ifdef ENABLE_VOSF
if (use_vosf) {
XDisplayLock();
if (mainBuffer.dirty) {
LOCK_VOSF;
update_display_window_vosf();
UNLOCK_VOSF;
XSync(x_display, false); // Let the server catch up
}
XDisplayUnlock();
}
else
#endif
update_display();
// Set new cursor image if it was changed
if (hw_mac_cursor_accl && cursor_changed) {
cursor_changed = false;
uint8 *x_data = (uint8 *)cursor_image->data;
uint8 *x_mask = (uint8 *)cursor_mask_image->data;
for (int i = 0; i < 32; i++) {
x_mask[i] = MacCursor[4 + i] | MacCursor[36 + i];
x_data[i] = MacCursor[4 + i];
}
XDisplayLock();
XFreeCursor(x_display, mac_cursor);
XPutImage(x_display, cursor_map, cursor_gc, cursor_image, 0, 0, 0, 0, 16, 16);
XPutImage(x_display, cursor_mask_map, cursor_mask_gc, cursor_mask_image, 0, 0, 0, 0, 16, 16);
mac_cursor = XCreatePixmapCursor(x_display, cursor_map, cursor_mask_map, &black, &white, MacCursor[2], MacCursor[3]);
XDefineCursor(x_display, the_win, mac_cursor);
XDisplayUnlock();
}
}
}
#ifdef ENABLE_VOSF
else if (use_vosf) {
// Update display (VOSF variant)
if (++tick_counter >= frame_skip) {
tick_counter = 0;
if (mainBuffer.dirty) {
LOCK_VOSF;
update_display_dga_vosf();
UNLOCK_VOSF;
}
}
}
#endif
// Set new palette if it was changed
handle_palette_changes();
} else {
// No display refresh pending, check for X events
fd_set readfds;
FD_ZERO(&readfds);
FD_SET(fd, &readfds);
struct timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = delay;
if (select(fd+1, &readfds, NULL, NULL, &timeout) > 0)
handle_events();
}
}
return NULL;
}
/*
* Record dirty area from NQD
*/
void video_set_dirty_area(int x, int y, int w, int h)
{
VideoInfo const & mode = VModes[cur_mode];
const int screen_width = VIDEO_MODE_X;
const int screen_height = VIDEO_MODE_Y;
const int bytes_per_row = VIDEO_MODE_ROW_BYTES;
#ifdef ENABLE_VOSF
if (use_vosf) {
vosf_set_dirty_area(x, y, w, h, screen_width, screen_height, bytes_per_row);
return;
}
#endif
// XXX handle dirty bounding boxes for non-VOSF modes
}
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