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macemu/BasiliskII/src/SDL/video_sdl.cpp

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/*
* video_sdl.cpp - Video/graphics emulation, SDL specific stuff
*
* Basilisk II (C) 1997-2008 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 (TODO)
* Ctrl-Esc = emergency quit
* Ctrl-F1 = mount floppy
* Ctrl-F5 = grab mouse (in windowed mode)
*
* FIXMEs and TODOs:
* - Windows requires an extra mouse event to update the actual cursor image?
* - Ctr-Tab for suspend/resume but how? SDL does not support that for non-Linux
* - Ctrl-Fn doesn't generate SDL_KEYDOWN events (SDL bug?)
* - Mouse acceleration, there is no API in SDL yet for that
* - Gamma tables support is likely to be broken here
* - Events processing is bound to the general emulation thread as SDL requires
* to PumpEvents() within the same thread as the one that called SetVideoMode().
* Besides, there can't seem to be a way to call SetVideoMode() from a child thread.
* - Backport hw cursor acceleration to Basilisk II?
* - Factor out code
*/
#include "sysdeps.h"
#include <SDL.h>
#include <SDL_mutex.h>
#include <SDL_thread.h>
#include <errno.h>
#include <vector>
#ifdef WIN32
#include <malloc.h> /* alloca() */
#endif
#include "cpu_emulation.h"
#include "main.h"
#include "adb.h"
#include "macos_util.h"
#include "prefs.h"
#include "user_strings.h"
#include "video.h"
#include "video_defs.h"
#include "video_blit.h"
#include "vm_alloc.h"
#define DEBUG 0
#include "debug.h"
// Supported video modes
using std::vector;
static vector<VIDEO_MODE> VideoModes;
// Display types
#ifdef SHEEPSHAVER
enum {
DISPLAY_WINDOW = DIS_WINDOW, // windowed display
DISPLAY_SCREEN = DIS_SCREEN // fullscreen display
};
extern int display_type; // See enum above
#else
enum {
DISPLAY_WINDOW, // windowed display
DISPLAY_SCREEN // fullscreen display
};
static int display_type = DISPLAY_WINDOW; // See enum above
#endif
// Constants
#ifdef WIN32
const char KEYCODE_FILE_NAME[] = "BasiliskII_keycodes";
#else
const char KEYCODE_FILE_NAME[] = DATADIR "/keycodes";
#endif
// Global variables
static uint32 frame_skip; // Prefs items
static int16 mouse_wheel_mode;
static int16 mouse_wheel_lines;
static uint8 *the_buffer = NULL; // Mac frame buffer (where MacOS draws into)
static uint8 *the_buffer_copy = NULL; // Copy of Mac frame buffer (for refreshed modes)
static uint32 the_buffer_size; // Size of allocated the_buffer
static bool redraw_thread_active = false; // Flag: Redraw thread installed
#ifndef USE_CPU_EMUL_SERVICES
static volatile bool redraw_thread_cancel; // Flag: Cancel Redraw thread
static SDL_Thread *redraw_thread = NULL; // Redraw thread
static volatile bool thread_stop_req = false;
static volatile bool thread_stop_ack = false; // Acknowledge for thread_stop_req
#endif
#ifdef ENABLE_VOSF
static bool use_vosf = false; // Flag: VOSF enabled
#else
static const bool use_vosf = false; // VOSF not possible
#endif
static bool ctrl_down = false; // Flag: Ctrl key pressed
static bool caps_on = false; // Flag: Caps Lock on
static bool quit_full_screen = false; // Flag: DGA close requested from redraw thread
static bool emerg_quit = false; // Flag: Ctrl-Esc pressed, emergency quit requested from MacOS thread
static bool emul_suspended = false; // Flag: Emulator suspended
static bool classic_mode = false; // Flag: Classic Mac video mode
static bool use_keycodes = false; // Flag: Use keycodes rather than keysyms
static int keycode_table[256]; // X keycode -> Mac keycode translation table
// SDL variables
static int screen_depth; // Depth of current screen
static SDL_Cursor *sdl_cursor; // Copy of Mac cursor
static SDL_Color sdl_palette[256]; // Color palette to be used as CLUT and gamma table
static bool sdl_palette_changed = false; // Flag: Palette changed, redraw thread must set new colors
static bool toggle_fullscreen = false;
static const int sdl_eventmask = SDL_MOUSEEVENTMASK | SDL_KEYEVENTMASK | SDL_VIDEOEXPOSEMASK | SDL_QUITMASK | SDL_ACTIVEEVENTMASK;
static bool mouse_grabbed = false;
// Mutex to protect SDL events
static SDL_mutex *sdl_events_lock = NULL;
#define LOCK_EVENTS SDL_LockMutex(sdl_events_lock)
#define UNLOCK_EVENTS SDL_UnlockMutex(sdl_events_lock)
// Mutex to protect palette
static SDL_mutex *sdl_palette_lock = NULL;
#define LOCK_PALETTE SDL_LockMutex(sdl_palette_lock)
#define UNLOCK_PALETTE SDL_UnlockMutex(sdl_palette_lock)
// Mutex to protect frame buffer
static SDL_mutex *frame_buffer_lock = NULL;
#define LOCK_FRAME_BUFFER SDL_LockMutex(frame_buffer_lock)
#define UNLOCK_FRAME_BUFFER SDL_UnlockMutex(frame_buffer_lock)
// Video refresh function
static void VideoRefreshInit(void);
static void (*video_refresh)(void);
// Prototypes
static int redraw_func(void *arg);
// From sys_unix.cpp
extern void SysMountFirstFloppy(void);
/*
* SDL surface locking glue
*/
#ifdef ENABLE_VOSF
#define SDL_VIDEO_LOCK_VOSF_SURFACE(SURFACE) do { \
if ((SURFACE)->flags & (SDL_HWSURFACE | SDL_FULLSCREEN)) \
the_host_buffer = (uint8 *)(SURFACE)->pixels; \
} while (0)
#else
#define SDL_VIDEO_LOCK_VOSF_SURFACE(SURFACE)
#endif
#define SDL_VIDEO_LOCK_SURFACE(SURFACE) do { \
if (SDL_MUSTLOCK(SURFACE)) { \
SDL_LockSurface(SURFACE); \
SDL_VIDEO_LOCK_VOSF_SURFACE(SURFACE); \
} \
} while (0)
#define SDL_VIDEO_UNLOCK_SURFACE(SURFACE) do { \
if (SDL_MUSTLOCK(SURFACE)) \
SDL_UnlockSurface(SURFACE); \
} while (0)
/*
* Framebuffer allocation routines
*/
static void *vm_acquire_framebuffer(uint32 size)
{
// always try to reallocate framebuffer at the same address
static void *fb = VM_MAP_FAILED;
if (fb != VM_MAP_FAILED) {
if (vm_acquire_fixed(fb, size) < 0) {
#ifndef SHEEPSHAVER
printf("FATAL: Could not reallocate framebuffer at previous address\n");
#endif
fb = VM_MAP_FAILED;
}
}
if (fb == VM_MAP_FAILED)
fb = vm_acquire(size, VM_MAP_DEFAULT | VM_MAP_32BIT);
return fb;
}
static inline void vm_release_framebuffer(void *fb, uint32 size)
{
vm_release(fb, size);
}
static inline int get_customized_color_depth(int default_depth)
{
int display_color_depth = PrefsFindInt32("displaycolordepth");
D(bug("Get displaycolordepth %d\n", display_color_depth));
if(0 == display_color_depth)
return default_depth;
else{
switch (display_color_depth) {
case 8:
return VIDEO_DEPTH_8BIT;
case 15: case 16:
return VIDEO_DEPTH_16BIT;
case 24: case 32:
return VIDEO_DEPTH_32BIT;
default:
return default_depth;
}
}
}
/*
* Windows message handler
*/
#ifdef WIN32
#include <dbt.h>
static WNDPROC sdl_window_proc = NULL; // Window proc used by SDL
extern void SysMediaArrived(void);
extern void SysMediaRemoved(void);
extern HWND GetMainWindowHandle(void);
static LRESULT CALLBACK windows_message_handler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg) {
case WM_DEVICECHANGE:
if (wParam == DBT_DEVICEREMOVECOMPLETE) {
DEV_BROADCAST_HDR *p = (DEV_BROADCAST_HDR *)lParam;
if (p->dbch_devicetype == DBT_DEVTYP_VOLUME)
SysMediaRemoved();
}
else if (wParam == DBT_DEVICEARRIVAL) {
DEV_BROADCAST_HDR *p = (DEV_BROADCAST_HDR *)lParam;
if (p->dbch_devicetype == DBT_DEVTYP_VOLUME)
SysMediaArrived();
}
return 0;
default:
if (sdl_window_proc)
return CallWindowProc(sdl_window_proc, hwnd, msg, wParam, lParam);
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}
#endif
/*
* SheepShaver glue
*/
#ifdef SHEEPSHAVER
// Color depth modes type
typedef int video_depth;
// 1, 2, 4 and 8 bit depths use a color palette
static inline bool IsDirectMode(VIDEO_MODE const & mode)
{
return IsDirectMode(mode.viAppleMode);
}
// Abstract base class representing one (possibly virtual) monitor
// ("monitor" = rectangular display with a contiguous frame buffer)
class monitor_desc {
public:
monitor_desc(const vector<VIDEO_MODE> &available_modes, video_depth default_depth, uint32 default_id) {}
virtual ~monitor_desc() {}
// Get current Mac frame buffer base address
uint32 get_mac_frame_base(void) const {return screen_base;}
// Set Mac frame buffer base address (called from switch_to_mode())
void set_mac_frame_base(uint32 base) {screen_base = base;}
// Get current video mode
const VIDEO_MODE &get_current_mode(void) const {return VModes[cur_mode];}
// Called by the video driver to switch the video mode on this display
// (must call set_mac_frame_base())
virtual void switch_to_current_mode(void) = 0;
// Called by the video driver to set the color palette (in indexed modes)
// or the gamma table (in direct modes)
virtual void set_palette(uint8 *pal, int num) = 0;
};
// Vector of pointers to available monitor descriptions, filled by VideoInit()
static vector<monitor_desc *> VideoMonitors;
// Find Apple mode matching best specified dimensions
static int find_apple_resolution(int xsize, int ysize)
{
if (xsize == 640 && ysize == 480)
return APPLE_640x480;
if (xsize == 800 && ysize == 600)
return APPLE_800x600;
if (xsize == 1024 && ysize == 768)
return APPLE_1024x768;
if (xsize == 1152 && ysize == 768)
return APPLE_1152x768;
if (xsize == 1152 && ysize == 900)
return APPLE_1152x900;
if (xsize == 1280 && ysize == 1024)
return APPLE_1280x1024;
if (xsize == 1600 && ysize == 1200)
return APPLE_1600x1200;
return APPLE_CUSTOM;
}
// Display error alert
static void ErrorAlert(int error)
{
ErrorAlert(GetString(error));
}
#endif
/*
* monitor_desc subclass for SDL display
*/
class SDL_monitor_desc : public monitor_desc {
public:
SDL_monitor_desc(const vector<VIDEO_MODE> &available_modes, video_depth default_depth, uint32 default_id) : monitor_desc(available_modes, default_depth, default_id) {}
~SDL_monitor_desc() {}
virtual void switch_to_current_mode(void);
virtual void set_palette(uint8 *pal, int num);
bool video_open(void);
void video_close(void);
};
/*
* Utility functions
*/
// Find palette size for given color depth
static int palette_size(int mode)
{
switch (mode) {
case VIDEO_DEPTH_1BIT: return 2;
case VIDEO_DEPTH_2BIT: return 4;
case VIDEO_DEPTH_4BIT: return 16;
case VIDEO_DEPTH_8BIT: return 256;
case VIDEO_DEPTH_16BIT: return 32;
case VIDEO_DEPTH_32BIT: return 256;
default: return 0;
}
}
// Map video_mode depth ID to numerical depth value
static int mac_depth_of_video_depth(int video_depth)
{
int depth = -1;
switch (video_depth) {
case VIDEO_DEPTH_1BIT:
depth = 1;
break;
case VIDEO_DEPTH_2BIT:
depth = 2;
break;
case VIDEO_DEPTH_4BIT:
depth = 4;
break;
case VIDEO_DEPTH_8BIT:
depth = 8;
break;
case VIDEO_DEPTH_16BIT:
depth = 16;
break;
case VIDEO_DEPTH_32BIT:
depth = 32;
break;
default:
abort();
}
return depth;
}
// Map video_mode depth ID to SDL screen depth
static int sdl_depth_of_video_depth(int video_depth)
{
return (video_depth <= VIDEO_DEPTH_8BIT) ? 8 : mac_depth_of_video_depth(video_depth);
}
// Get screen dimensions
static void sdl_display_dimensions(int &width, int &height)
{
static int max_width, max_height;
if (max_width == 0 && max_height == 0) {
max_width = 640 ; max_height = 480;
SDL_Rect **modes = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_HWSURFACE);
if (modes && modes != (SDL_Rect **)-1) {
// It turns out that on some implementations, and contrary to the documentation,
// the returned list is not sorted from largest to smallest (e.g. Windows)
for (int i = 0; modes[i] != NULL; i++) {
const int w = modes[i]->w;
const int h = modes[i]->h;
if (w > max_width && h > max_height) {
max_width = w;
max_height = h;
}
}
}
}
width = max_width;
height = max_height;
}
static inline int sdl_display_width(void)
{
int width, height;
sdl_display_dimensions(width, height);
return width;
}
static inline int sdl_display_height(void)
{
int width, height;
sdl_display_dimensions(width, height);
return height;
}
// Check wether specified mode is available
static bool has_mode(int type, int width, int height, int depth)
{
#ifdef SHEEPSHAVER
// Filter out Classic resolutions
if (width == 512 && height == 384)
return false;
#endif
// Filter out out-of-bounds resolutions
if (width > sdl_display_width() || height > sdl_display_height())
return false;
// Rely on SDL capabilities
return SDL_VideoModeOK(width, height,
sdl_depth_of_video_depth(depth),
SDL_HWSURFACE | (type == DISPLAY_SCREEN ? SDL_FULLSCREEN : 0)) != 0;
}
// Add mode to list of supported modes
static void add_mode(int type, int width, int height, int resolution_id, int bytes_per_row, int depth)
{
// Filter out unsupported modes
if (!has_mode(type, width, height, depth))
return;
// Fill in VideoMode entry
VIDEO_MODE mode;
#ifdef SHEEPSHAVER
resolution_id = find_apple_resolution(width, height);
mode.viType = type;
#endif
VIDEO_MODE_X = width;
VIDEO_MODE_Y = height;
VIDEO_MODE_RESOLUTION = resolution_id;
VIDEO_MODE_ROW_BYTES = bytes_per_row;
VIDEO_MODE_DEPTH = (video_depth)depth;
VideoModes.push_back(mode);
}
// Set Mac frame layout and base address (uses the_buffer/MacFrameBaseMac)
static void set_mac_frame_buffer(SDL_monitor_desc &monitor, int depth, bool native_byte_order)
{
#if !REAL_ADDRESSING && !DIRECT_ADDRESSING
int layout = FLAYOUT_DIRECT;
if (depth == VIDEO_DEPTH_16BIT)
layout = (screen_depth == 15) ? FLAYOUT_HOST_555 : FLAYOUT_HOST_565;
else if (depth == VIDEO_DEPTH_32BIT)
layout = (screen_depth == 24) ? FLAYOUT_HOST_888 : FLAYOUT_DIRECT;
if (native_byte_order)
MacFrameLayout = layout;
else
MacFrameLayout = FLAYOUT_DIRECT;
monitor.set_mac_frame_base(MacFrameBaseMac);
// Set variables used by UAE memory banking
const VIDEO_MODE &mode = monitor.get_current_mode();
MacFrameBaseHost = the_buffer;
MacFrameSize = VIDEO_MODE_ROW_BYTES * VIDEO_MODE_Y;
InitFrameBufferMapping();
#else
monitor.set_mac_frame_base(Host2MacAddr(the_buffer));
#endif
D(bug("monitor.mac_frame_base = %08x\n", monitor.get_mac_frame_base()));
}
// Set window name and class
static void set_window_name(int name)
{
const SDL_VideoInfo *vi = SDL_GetVideoInfo();
if (vi && vi->wm_available) {
const char *str = GetString(name);
SDL_WM_SetCaption(str, str);
}
}
// Set mouse grab mode
static SDL_GrabMode set_grab_mode(SDL_GrabMode mode)
{
const SDL_VideoInfo *vi = SDL_GetVideoInfo();
return (vi && vi->wm_available ? SDL_WM_GrabInput(mode) : SDL_GRAB_OFF);
}
// Migrate preferences items (XXX to be handled in MigratePrefs())
static void migrate_screen_prefs(void)
{
#ifdef SHEEPSHAVER
// Look-up priorities are: "screen", "screenmodes", "windowmodes".
if (PrefsFindString("screen"))
return;
uint32 window_modes = PrefsFindInt32("windowmodes");
uint32 screen_modes = PrefsFindInt32("screenmodes");
int width = 0, height = 0;
if (screen_modes) {
static const struct {
int id;
int width;
int height;
}
modes[] = {
{ 1, 640, 480 },
{ 2, 800, 600 },
{ 4, 1024, 768 },
{ 64, 1152, 768 },
{ 8, 1152, 900 },
{ 16, 1280, 1024 },
{ 32, 1600, 1200 },
{ 0, }
};
for (int i = 0; modes[i].id != 0; i++) {
if (screen_modes & modes[i].id) {
if (width < modes[i].width && height < modes[i].height) {
width = modes[i].width;
height = modes[i].height;
}
}
}
} else {
if (window_modes & 1)
width = 640, height = 480;
if (window_modes & 2)
width = 800, height = 600;
}
if (width && height) {
char str[32];
sprintf(str, "%s/%d/%d", screen_modes ? "dga" : "win", width, height);
PrefsReplaceString("screen", str);
}
#endif
}
/*
* Display "driver" classes
*/
class driver_base {
public:
driver_base(SDL_monitor_desc &m);
~driver_base();
void init(); // One-time init
void set_video_mode(int flags);
void adapt_to_video_mode();
void update_palette(void);
void suspend(void) {}
void resume(void) {}
void toggle_mouse_grab(void);
void mouse_moved(int x, int y) { ADBMouseMoved(x, y); }
void disable_mouse_accel(void);
void restore_mouse_accel(void);
void grab_mouse(void);
void ungrab_mouse(void);
public:
SDL_monitor_desc &monitor; // Associated video monitor
const VIDEO_MODE &mode; // Video mode handled by the driver
bool init_ok; // Initialization succeeded (we can't use exceptions because of -fomit-frame-pointer)
SDL_Surface *s; // The surface we draw into
};
#ifdef ENABLE_VOSF
static void update_display_window_vosf(driver_base *drv);
#endif
static void update_display_static(driver_base *drv);
static driver_base *drv = NULL; // Pointer to currently used driver object
#ifdef ENABLE_VOSF
# include "video_vosf.h"
#endif
driver_base::driver_base(SDL_monitor_desc &m)
: monitor(m), mode(m.get_current_mode()), init_ok(false), s(NULL)
{
the_buffer = NULL;
the_buffer_copy = NULL;
}
void driver_base::set_video_mode(int flags)
{
int depth = sdl_depth_of_video_depth(VIDEO_MODE_DEPTH);
if ((s = SDL_SetVideoMode(VIDEO_MODE_X, VIDEO_MODE_Y, depth,
SDL_HWSURFACE | flags)) == NULL)
return;
#ifdef ENABLE_VOSF
the_host_buffer = (uint8 *)s->pixels;
#endif
}
void driver_base::init()
{
set_video_mode(display_type == DISPLAY_SCREEN ? SDL_FULLSCREEN : 0);
int aligned_height = (VIDEO_MODE_Y + 15) & ~15;
#ifdef ENABLE_VOSF
use_vosf = true;
// Allocate memory for frame buffer (SIZE is extended to page-boundary)
the_buffer_size = page_extend((aligned_height + 2) * s->pitch);
the_buffer = (uint8 *)vm_acquire_framebuffer(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));
// Check whether we can initialize the VOSF subsystem and it's profitable
if (!video_vosf_init(monitor)) {
WarningAlert(GetString(STR_VOSF_INIT_ERR));
use_vosf = false;
}
else if (!video_vosf_profitable()) {
video_vosf_exit();
printf("VOSF acceleration is not profitable on this platform, disabling it\n");
use_vosf = false;
}
if (!use_vosf) {
free(the_buffer_copy);
vm_release(the_buffer, the_buffer_size);
the_host_buffer = NULL;
}
#endif
if (!use_vosf) {
// Allocate memory for frame buffer
the_buffer_size = (aligned_height + 2) * s->pitch;
the_buffer_copy = (uint8 *)calloc(1, the_buffer_size);
the_buffer = (uint8 *)vm_acquire_framebuffer(the_buffer_size);
D(bug("the_buffer = %p, the_buffer_copy = %p\n", the_buffer, the_buffer_copy));
}
// Set frame buffer base
set_mac_frame_buffer(monitor, VIDEO_MODE_DEPTH, true);
adapt_to_video_mode();
}
void driver_base::adapt_to_video_mode() {
ADBSetRelMouseMode(mouse_grabbed);
// Init blitting routines
SDL_PixelFormat *f = s->format;
VisualFormat visualFormat;
visualFormat.depth = sdl_depth_of_video_depth(VIDEO_MODE_DEPTH);
visualFormat.Rmask = f->Rmask;
visualFormat.Gmask = f->Gmask;
visualFormat.Bmask = f->Bmask;
Screen_blitter_init(visualFormat, true, mac_depth_of_video_depth(VIDEO_MODE_DEPTH));
// Load gray ramp to 8->16/32 expand map
if (!IsDirectMode(mode))
for (int i=0; i<256; i++)
ExpandMap[i] = SDL_MapRGB(f, i, i, i);
bool hardware_cursor = false;
#ifdef SHEEPSHAVER
hardware_cursor = video_can_change_cursor();
if (hardware_cursor) {
// Create cursor
if ((sdl_cursor = SDL_CreateCursor(MacCursor + 4, MacCursor + 36, 16, 16, 0, 0)) != NULL) {
SDL_SetCursor(sdl_cursor);
}
}
// Tell the video driver there's a change in cursor type
if (private_data)
private_data->cursorHardware = hardware_cursor;
#endif
// Hide cursor
SDL_ShowCursor(hardware_cursor);
// Set window name/class
set_window_name(mouse_grabbed ? STR_WINDOW_TITLE_GRABBED : STR_WINDOW_TITLE);
// Everything went well
init_ok = true;
}
driver_base::~driver_base()
{
ungrab_mouse();
restore_mouse_accel();
if (s)
SDL_FreeSurface(s);
// the_buffer shall always be mapped through vm_acquire_framebuffer()
if (the_buffer != VM_MAP_FAILED) {
D(bug(" releasing the_buffer at %p (%d bytes)\n", the_buffer, the_buffer_size));
vm_release_framebuffer(the_buffer, the_buffer_size);
the_buffer = NULL;
}
// Free frame buffer(s)
if (!use_vosf) {
if (the_buffer_copy) {
free(the_buffer_copy);
the_buffer_copy = NULL;
}
}
#ifdef ENABLE_VOSF
else {
if (the_buffer_copy) {
D(bug(" freeing the_buffer_copy at %p\n", the_buffer_copy));
free(the_buffer_copy);
the_buffer_copy = NULL;
}
// Deinitialize VOSF
video_vosf_exit();
}
#endif
SDL_ShowCursor(1);
}
// Palette has changed
void driver_base::update_palette(void)
{
const VIDEO_MODE &mode = monitor.get_current_mode();
if ((int)VIDEO_MODE_DEPTH <= VIDEO_DEPTH_8BIT)
SDL_SetPalette(s, SDL_PHYSPAL, sdl_palette, 0, 256);
}
// Disable mouse acceleration
void driver_base::disable_mouse_accel(void)
{
}
// Restore mouse acceleration to original value
void driver_base::restore_mouse_accel(void)
{
}
// Toggle mouse grab
void driver_base::toggle_mouse_grab(void)
{
if (mouse_grabbed)
ungrab_mouse();
else
grab_mouse();
}
// Grab mouse, switch to relative mouse mode
void driver_base::grab_mouse(void)
{
if (!mouse_grabbed) {
SDL_GrabMode new_mode = set_grab_mode(SDL_GRAB_ON);
if (new_mode == SDL_GRAB_ON) {
set_window_name(STR_WINDOW_TITLE_GRABBED);
disable_mouse_accel();
ADBSetRelMouseMode(mouse_grabbed = true);
}
}
}
// Ungrab mouse, switch to absolute mouse mode
void driver_base::ungrab_mouse(void)
{
if (mouse_grabbed) {
SDL_GrabMode new_mode = set_grab_mode(SDL_GRAB_OFF);
if (new_mode == SDL_GRAB_OFF) {
set_window_name(STR_WINDOW_TITLE);
restore_mouse_accel();
ADBSetRelMouseMode(mouse_grabbed = false);
}
}
}
/*
* 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];
snprintf(str, sizeof(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
char video_driver[256];
SDL_VideoDriverName(video_driver, sizeof(video_driver));
bool video_driver_found = false;
char line[256];
int n_keys = 0;
while (fgets(line, sizeof(line) - 1, 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 (video_driver_found) {
// Skip aliases as long as we have read keycodes yet
// Otherwise, it's another mapping and we have to stop
static const char sdl_str[] = "sdl";
if (strncmp(line, sdl_str, sizeof(sdl_str) - 1) == 0 && n_keys == 0)
continue;
// Read keycode
int x_code, mac_code;
if (sscanf(line, "%d %d", &x_code, &mac_code) == 2)
keycode_table[x_code & 0xff] = mac_code, n_keys++;
else
break;
} else {
// Search for SDL video driver string
static const char sdl_str[] = "sdl";
if (strncmp(line, sdl_str, sizeof(sdl_str) - 1) == 0) {
char *p = line + sizeof(sdl_str);
if (strstr(video_driver, p) == video_driver)
video_driver_found = true;
}
}
}
// Keycode file completely read
fclose(f);
use_keycodes = video_driver_found;
// Vendor not found? Then display warning
if (!video_driver_found) {
char str[256];
snprintf(str, sizeof(str), GetString(STR_KEYCODE_VENDOR_WARN), video_driver, kc_path ? kc_path : KEYCODE_FILE_NAME);
WarningAlert(str);
return;
}
D(bug("Using SDL/%s keycodes table, %d key mappings\n", video_driver, n_keys));
}
}
// Open display for current mode
bool SDL_monitor_desc::video_open(void)
{
D(bug("video_open()\n"));
#if DEBUG
const VIDEO_MODE &mode = get_current_mode();
D(bug("Current video mode:\n"));
D(bug(" %dx%d (ID %02x), %d bpp\n", VIDEO_MODE_X, VIDEO_MODE_Y, VIDEO_MODE_RESOLUTION, 1 << (VIDEO_MODE_DEPTH & 0x0f)));
#endif
// Create display driver object of requested type
drv = new(std::nothrow) driver_base(*this);
if (drv == NULL)
return false;
drv->init();
if (!drv->init_ok) {
delete drv;
drv = NULL;
return false;
}
#ifdef WIN32
// Chain in a new message handler for WM_DEVICECHANGE
HWND the_window = GetMainWindowHandle();
sdl_window_proc = (WNDPROC)GetWindowLongPtr(the_window, GWLP_WNDPROC);
SetWindowLongPtr(the_window, GWLP_WNDPROC, (LONG_PTR)windows_message_handler);
#endif
// Initialize VideoRefresh function
VideoRefreshInit();
// Lock down frame buffer
LOCK_FRAME_BUFFER;
// Start redraw/input thread
#ifndef USE_CPU_EMUL_SERVICES
redraw_thread_cancel = false;
redraw_thread_active = ((redraw_thread = SDL_CreateThread(redraw_func, NULL)) != NULL);
if (!redraw_thread_active) {
printf("FATAL: cannot create redraw thread\n");
return false;
}
#else
redraw_thread_active = true;
#endif
return true;
}
#ifdef SHEEPSHAVER
bool VideoInit(void)
{
const bool classic = false;
#else
bool VideoInit(bool classic)
{
#endif
classic_mode = classic;
#ifdef ENABLE_VOSF
// Zero the mainBuffer structure
mainBuffer.dirtyPages = NULL;
mainBuffer.pageInfo = NULL;
#endif
// Create Mutexes
if ((sdl_events_lock = SDL_CreateMutex()) == NULL)
return false;
if ((sdl_palette_lock = SDL_CreateMutex()) == NULL)
return false;
if ((frame_buffer_lock = SDL_CreateMutex()) == NULL)
return false;
// Init keycode translation
keycode_init();
// Read prefs
frame_skip = PrefsFindInt32("frameskip");
mouse_wheel_mode = PrefsFindInt32("mousewheelmode");
mouse_wheel_lines = PrefsFindInt32("mousewheellines");
// Get screen mode from preferences
migrate_screen_prefs();
const char *mode_str = NULL;
if (classic_mode)
mode_str = "win/512/342";
else
mode_str = PrefsFindString("screen");
// Determine display type and default dimensions
int default_width, default_height;
if (classic) {
default_width = 512;
default_height = 384;
}
else {
default_width = 640;
default_height = 480;
}
display_type = DISPLAY_WINDOW;
if (mode_str) {
if (sscanf(mode_str, "win/%d/%d", &default_width, &default_height) == 2)
display_type = DISPLAY_WINDOW;
else if (sscanf(mode_str, "dga/%d/%d", &default_width, &default_height) == 2)
display_type = DISPLAY_SCREEN;
}
if (default_width <= 0)
default_width = sdl_display_width();
else if (default_width > sdl_display_width())
default_width = sdl_display_width();
if (default_height <= 0)
default_height = sdl_display_height();
else if (default_height > sdl_display_height())
default_height = sdl_display_height();
// Mac screen depth follows X depth
screen_depth = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
int default_depth;
switch (screen_depth) {
case 8:
default_depth = VIDEO_DEPTH_8BIT;
break;
case 15: case 16:
default_depth = VIDEO_DEPTH_16BIT;
break;
case 24: case 32:
default_depth = VIDEO_DEPTH_32BIT;
break;
default:
default_depth = VIDEO_DEPTH_1BIT;
break;
}
// Initialize list of video modes to try
struct {
int w;
int h;
int resolution_id;
}
video_modes[] = {
{ -1, -1, 0x80 },
{ 512, 384, 0x80 },
{ 640, 480, 0x81 },
{ 800, 600, 0x82 },
{ 1024, 768, 0x83 },
{ 1152, 870, 0x84 },
{ 1280, 1024, 0x85 },
{ 1600, 1200, 0x86 },
{ 0, }
};
video_modes[0].w = default_width;
video_modes[0].h = default_height;
// Construct list of supported modes
if (display_type == DISPLAY_WINDOW) {
if (classic)
add_mode(display_type, 512, 342, 0x80, 64, VIDEO_DEPTH_1BIT);
else {
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 (i > 0 && (w >= default_width || h >= default_height))
continue;
for (int d = VIDEO_DEPTH_1BIT; d <= default_depth; d++)
add_mode(display_type, w, h, video_modes[i].resolution_id, TrivialBytesPerRow(w, (video_depth)d), d);
}
}
} else if (display_type == DISPLAY_SCREEN) {
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 (i > 0 && (w >= default_width || h >= default_height))
continue;
if (w == 512 && h == 384)
continue;
for (int d = VIDEO_DEPTH_1BIT; d <= default_depth; d++)
add_mode(display_type, w, h, video_modes[i].resolution_id, TrivialBytesPerRow(w, (video_depth)d), d);
}
}
if (VideoModes.empty()) {
ErrorAlert(STR_NO_XVISUAL_ERR);
return false;
}
// Find requested default mode with specified dimensions
uint32 default_id;
std::vector<VIDEO_MODE>::const_iterator i, end = VideoModes.end();
for (i = VideoModes.begin(); i != end; ++i) {
const VIDEO_MODE & mode = (*i);
if (VIDEO_MODE_X == default_width && VIDEO_MODE_Y == default_height && VIDEO_MODE_DEPTH == default_depth) {
default_id = VIDEO_MODE_RESOLUTION;
#ifdef SHEEPSHAVER
std::vector<VIDEO_MODE>::const_iterator begin = VideoModes.begin();
cur_mode = distance(begin, i);
#endif
break;
}
}
if (i == end) { // not found, use first available mode
const VIDEO_MODE & mode = VideoModes[0];
default_depth = VIDEO_MODE_DEPTH;
default_id = VIDEO_MODE_RESOLUTION;
#ifdef SHEEPSHAVER
cur_mode = 0;
#endif
}
#ifdef SHEEPSHAVER
for (int i = 0; i < VideoModes.size(); i++)
VModes[i] = VideoModes[i];
VideoInfo *p = &VModes[VideoModes.size()];
p->viType = DIS_INVALID; // End marker
p->viRowBytes = 0;
p->viXsize = p->viYsize = 0;
p->viAppleMode = 0;
p->viAppleID = 0;
#endif
#if DEBUG
D(bug("Available video modes:\n"));
for (i = VideoModes.begin(); i != end; ++i) {
const VIDEO_MODE & mode = (*i);
int bits = 1 << VIDEO_MODE_DEPTH;
if (bits == 16)
bits = 15;
else if (bits == 32)
bits = 24;
D(bug(" %dx%d (ID %02x), %d colors\n", VIDEO_MODE_X, VIDEO_MODE_Y, VIDEO_MODE_RESOLUTION, 1 << bits));
}
#endif
int color_depth = get_customized_color_depth(default_depth);
D(bug("Return get_customized_color_depth %d\n", color_depth));
// Create SDL_monitor_desc for this (the only) display
SDL_monitor_desc *monitor = new SDL_monitor_desc(VideoModes, (video_depth)color_depth, default_id);
VideoMonitors.push_back(monitor);
// Open display
return monitor->video_open();
}
/*
* Deinitialization
*/
// Close display
void SDL_monitor_desc::video_close(void)
{
D(bug("video_close()\n"));
#ifdef WIN32
// Remove message handler for WM_DEVICECHANGE
HWND the_window = GetMainWindowHandle();
SetWindowLongPtr(the_window, GWLP_WNDPROC, (LONG_PTR)sdl_window_proc);
#endif
// Stop redraw thread
#ifndef USE_CPU_EMUL_SERVICES
if (redraw_thread_active) {
redraw_thread_cancel = true;
SDL_WaitThread(redraw_thread, NULL);
}
#endif
redraw_thread_active = false;
// Unlock frame buffer
UNLOCK_FRAME_BUFFER;
D(bug(" frame buffer unlocked\n"));
// Close display
delete drv;
drv = NULL;
}
void VideoExit(void)
{
// Close displays
vector<monitor_desc *>::iterator i, end = VideoMonitors.end();
for (i = VideoMonitors.begin(); i != end; ++i)
dynamic_cast<SDL_monitor_desc *>(*i)->video_close();
// Destroy locks
if (frame_buffer_lock)
SDL_DestroyMutex(frame_buffer_lock);
if (sdl_palette_lock)
SDL_DestroyMutex(sdl_palette_lock);
if (sdl_events_lock)
SDL_DestroyMutex(sdl_events_lock);
}
/*
* Close down full-screen mode (if bringing up error alerts is unsafe while in full-screen mode)
*/
void VideoQuitFullScreen(void)
{
D(bug("VideoQuitFullScreen()\n"));
quit_full_screen = true;
}
static void do_toggle_fullscreen(void)
{
#ifndef USE_CPU_EMUL_SERVICES
// pause redraw thread
thread_stop_ack = false;
thread_stop_req = true;
while (!thread_stop_ack) ;
#endif
// save the mouse position
int x, y;
SDL_GetMouseState(&x, &y);
// save the screen contents
SDL_Surface *tmp_surface = SDL_ConvertSurface(drv->s, drv->s->format,
drv->s->flags);
// switch modes
display_type = (display_type == DISPLAY_SCREEN) ? DISPLAY_WINDOW
: DISPLAY_SCREEN;
drv->set_video_mode(display_type == DISPLAY_SCREEN ? SDL_FULLSCREEN : 0);
drv->adapt_to_video_mode();
// reset the palette
#ifdef SHEEPSHAVER
video_set_palette();
#endif
drv->update_palette();
// restore the screen contents
SDL_BlitSurface(tmp_surface, NULL, drv->s, NULL);
SDL_FreeSurface(tmp_surface);
SDL_UpdateRect(drv->s, 0, 0, 0, 0);
// reset the video refresh handler
VideoRefreshInit();
// while SetVideoMode is happening, control key up may be missed
ADBKeyUp(0x36);
// restore the mouse position
SDL_WarpMouse(x, y);
// resume redraw thread
toggle_fullscreen = false;
#ifndef USE_CPU_EMUL_SERVICES
thread_stop_req = false;
#endif
}
/*
* Mac VBL interrupt
*/
/*
* Execute video VBL routine
*/
#ifdef SHEEPSHAVER
void VideoVBL(void)
{
// Emergency quit requested? Then quit
if (emerg_quit)
QuitEmulator();
if (toggle_fullscreen)
do_toggle_fullscreen();
// 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);
}
#else
void VideoInterrupt(void)
{
// We must fill in the events queue in the same thread that did call SDL_SetVideoMode()
SDL_PumpEvents();
// Emergency quit requested? Then quit
if (emerg_quit)
QuitEmulator();
if (toggle_fullscreen)
do_toggle_fullscreen();
// 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;
}
#endif
/*
* Set palette
*/
#ifdef SHEEPSHAVER
void video_set_palette(void)
{
monitor_desc * monitor = VideoMonitors[0];
int n_colors = palette_size(monitor->get_current_mode().viAppleMode);
uint8 pal[256 * 3];
for (int c = 0; c < n_colors; c++) {
pal[c*3 + 0] = mac_pal[c].red;
pal[c*3 + 1] = mac_pal[c].green;
pal[c*3 + 2] = mac_pal[c].blue;
}
monitor->set_palette(pal, n_colors);
}
#endif
void SDL_monitor_desc::set_palette(uint8 *pal, int num_in)
{
const VIDEO_MODE &mode = get_current_mode();
// FIXME: how can we handle the gamma ramp?
if ((int)VIDEO_MODE_DEPTH > VIDEO_DEPTH_8BIT)
return;
LOCK_PALETTE;
// Convert colors to XColor array
int num_out = 256;
bool stretch = false;
SDL_Color *p = sdl_palette;
for (int i=0; i<num_out; i++) {
int c = (stretch ? (i * num_in) / num_out : i);
p->r = pal[c*3 + 0] * 0x0101;
p->g = pal[c*3 + 1] * 0x0101;
p->b = pal[c*3 + 2] * 0x0101;
p++;
}
// Recalculate pixel color expansion map
if (!IsDirectMode(mode)) {
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] = SDL_MapRGB(drv->s->format, pal[c*3+0], pal[c*3+1], pal[c*3+2]);
}
#ifdef ENABLE_VOSF
if (use_vosf) {
// We have to redraw everything because the interpretation of pixel values changed
LOCK_VOSF;
PFLAG_SET_ALL;
UNLOCK_VOSF;
memset(the_buffer_copy, 0, VIDEO_MODE_ROW_BYTES * VIDEO_MODE_Y);
}
#endif
}
// Tell redraw thread to change palette
sdl_palette_changed = true;
UNLOCK_PALETTE;
}
/*
* Switch video mode
*/
#ifdef SHEEPSHAVER
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
DisableInterrupt();
thread_stop_ack = false;
thread_stop_req = true;
while (!thread_stop_ack) ;
cur_mode = i;
monitor_desc *monitor = VideoMonitors[0];
monitor->switch_to_current_mode();
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
thread_stop_req = false;
EnableInterrupt();
return noErr;
}
}
return paramErr;
}
#endif
void SDL_monitor_desc::switch_to_current_mode(void)
{
// Close and reopen display
LOCK_EVENTS;
video_close();
video_open();
UNLOCK_EVENTS;
if (drv == NULL) {
ErrorAlert(STR_OPEN_WINDOW_ERR);
QuitEmulator();
}
}
/*
* Can we set the MacOS cursor image into the window?
*/
#ifdef SHEEPSHAVER
bool video_can_change_cursor(void)
{
if (display_type != DISPLAY_WINDOW)
return false;
#if defined(__APPLE__)
static char driver[] = "Quartz?";
static int quartzok = -1;
if (quartzok < 0) {
if (SDL_VideoDriverName(driver, sizeof driver) == NULL || strncmp(driver, "Quartz", sizeof driver))
quartzok = true;
else {
// Quartz driver bug prevents cursor changing in SDL 1.2.11 to 1.2.14.
const SDL_version *vp = SDL_Linked_Version();
int version = SDL_VERSIONNUM(vp->major, vp->minor, vp->patch);
quartzok = (version <= SDL_VERSIONNUM(1, 2, 10) || version >= SDL_VERSIONNUM(1, 2, 15));
}
}
return quartzok;
#else
return true;
#endif
}
#endif
/*
* Set cursor image for window
*/
#ifdef SHEEPSHAVER
void video_set_cursor(void)
{
// Set new cursor image if it was changed
if (sdl_cursor) {
SDL_FreeCursor(sdl_cursor);
sdl_cursor = SDL_CreateCursor(MacCursor + 4, MacCursor + 36, 16, 16, MacCursor[2], MacCursor[3]);
if (sdl_cursor) {
SDL_ShowCursor(private_data == NULL || private_data->cursorVisible);
SDL_SetCursor(sdl_cursor);
// XXX Windows apparently needs an extra mouse event to
// make the new cursor image visible.
// On Mac, if mouse is grabbed, SDL_ShowCursor() recenters the
// mouse, we have to put it back.
bool move = false;
#ifdef WIN32
move = true;
#elif defined(__APPLE__)
move = mouse_grabbed;
#endif
if (move) {
int visible = SDL_ShowCursor(-1);
if (visible) {
int x, y;
SDL_GetMouseState(&x, &y);
SDL_WarpMouse(x, y);
}
}
}
}
}
#endif
/*
* Keyboard-related utilify functions
*/
static bool is_modifier_key(SDL_KeyboardEvent const & e)
{
switch (e.keysym.sym) {
case SDLK_NUMLOCK:
case SDLK_CAPSLOCK:
case SDLK_SCROLLOCK:
case SDLK_RSHIFT:
case SDLK_LSHIFT:
case SDLK_RCTRL:
case SDLK_LCTRL:
case SDLK_RALT:
case SDLK_LALT:
case SDLK_RMETA:
case SDLK_LMETA:
case SDLK_LSUPER:
case SDLK_RSUPER:
case SDLK_MODE:
case SDLK_COMPOSE:
return true;
}
return false;
}
static bool is_ctrl_down(SDL_keysym const & ks)
{
return ctrl_down || (ks.mod & KMOD_CTRL);
}
/*
* Translate key event to Mac keycode, returns -1 if no keycode was found
* and -2 if the key was recognized as a hotkey
*/
static int kc_decode(SDL_keysym const & ks, bool key_down)
{
switch (ks.sym) {
case SDLK_a: return 0x00;
case SDLK_b: return 0x0b;
case SDLK_c: return 0x08;
case SDLK_d: return 0x02;
case SDLK_e: return 0x0e;
case SDLK_f: return 0x03;
case SDLK_g: return 0x05;
case SDLK_h: return 0x04;
case SDLK_i: return 0x22;
case SDLK_j: return 0x26;
case SDLK_k: return 0x28;
case SDLK_l: return 0x25;
case SDLK_m: return 0x2e;
case SDLK_n: return 0x2d;
case SDLK_o: return 0x1f;
case SDLK_p: return 0x23;
case SDLK_q: return 0x0c;
case SDLK_r: return 0x0f;
case SDLK_s: return 0x01;
case SDLK_t: return 0x11;
case SDLK_u: return 0x20;
case SDLK_v: return 0x09;
case SDLK_w: return 0x0d;
case SDLK_x: return 0x07;
case SDLK_y: return 0x10;
case SDLK_z: return 0x06;
case SDLK_1: case SDLK_EXCLAIM: return 0x12;
case SDLK_2: case SDLK_AT: return 0x13;
case SDLK_3: case SDLK_HASH: return 0x14;
case SDLK_4: case SDLK_DOLLAR: return 0x15;
case SDLK_5: return 0x17;
case SDLK_6: return 0x16;
case SDLK_7: return 0x1a;
case SDLK_8: return 0x1c;
case SDLK_9: return 0x19;
case SDLK_0: return 0x1d;
case SDLK_BACKQUOTE: return 0x0a;
case SDLK_MINUS: case SDLK_UNDERSCORE: return 0x1b;
case SDLK_EQUALS: case SDLK_PLUS: return 0x18;
case SDLK_LEFTBRACKET: return 0x21;
case SDLK_RIGHTBRACKET: return 0x1e;
case SDLK_BACKSLASH: return 0x2a;
case SDLK_SEMICOLON: case SDLK_COLON: return 0x29;
case SDLK_QUOTE: case SDLK_QUOTEDBL: return 0x27;
case SDLK_COMMA: case SDLK_LESS: return 0x2b;
case SDLK_PERIOD: case SDLK_GREATER: return 0x2f;
case SDLK_SLASH: case SDLK_QUESTION: return 0x2c;
case SDLK_TAB: if (is_ctrl_down(ks)) {if (!key_down) drv->suspend(); return -2;} else return 0x30;
case SDLK_RETURN: if (is_ctrl_down(ks)) {if (!key_down) toggle_fullscreen = true; return -2;} else return 0x24;
case SDLK_SPACE: return 0x31;
case SDLK_BACKSPACE: return 0x33;
case SDLK_DELETE: return 0x75;
case SDLK_INSERT: return 0x72;
case SDLK_HOME: case SDLK_HELP: return 0x73;
case SDLK_END: return 0x77;
case SDLK_PAGEUP: return 0x74;
case SDLK_PAGEDOWN: return 0x79;
case SDLK_LCTRL: return 0x36;
case SDLK_RCTRL: return 0x36;
case SDLK_LSHIFT: return 0x38;
case SDLK_RSHIFT: return 0x38;
#if (defined(__APPLE__) && defined(__MACH__))
case SDLK_LALT: return 0x3a;
case SDLK_RALT: return 0x3a;
case SDLK_LMETA: return 0x37;
case SDLK_RMETA: return 0x37;
#else
case SDLK_LALT: return 0x37;
case SDLK_RALT: return 0x37;
case SDLK_LMETA: return 0x3a;
case SDLK_RMETA: return 0x3a;
#endif
case SDLK_LSUPER: return 0x3a; // "Windows" key
case SDLK_RSUPER: return 0x3a;
case SDLK_MENU: return 0x32;
case SDLK_CAPSLOCK: return 0x39;
case SDLK_NUMLOCK: return 0x47;
case SDLK_UP: return 0x3e;
case SDLK_DOWN: return 0x3d;
case SDLK_LEFT: return 0x3b;
case SDLK_RIGHT: return 0x3c;
case SDLK_ESCAPE: if (is_ctrl_down(ks)) {if (!key_down) { quit_full_screen = true; emerg_quit = true; } return -2;} else return 0x35;
case SDLK_F1: if (is_ctrl_down(ks)) {if (!key_down) SysMountFirstFloppy(); return -2;} else return 0x7a;
case SDLK_F2: return 0x78;
case SDLK_F3: return 0x63;
case SDLK_F4: return 0x76;
case SDLK_F5: if (is_ctrl_down(ks)) {if (!key_down) drv->toggle_mouse_grab(); return -2;} else return 0x60;
case SDLK_F6: return 0x61;
case SDLK_F7: return 0x62;
case SDLK_F8: return 0x64;
case SDLK_F9: return 0x65;
case SDLK_F10: return 0x6d;
case SDLK_F11: return 0x67;
case SDLK_F12: return 0x6f;
case SDLK_PRINT: return 0x69;
case SDLK_SCROLLOCK: return 0x6b;
case SDLK_PAUSE: return 0x71;
case SDLK_KP0: return 0x52;
case SDLK_KP1: return 0x53;
case SDLK_KP2: return 0x54;
case SDLK_KP3: return 0x55;
case SDLK_KP4: return 0x56;
case SDLK_KP5: return 0x57;
case SDLK_KP6: return 0x58;
case SDLK_KP7: return 0x59;
case SDLK_KP8: return 0x5b;
case SDLK_KP9: return 0x5c;
case SDLK_KP_PERIOD: return 0x41;
case SDLK_KP_PLUS: return 0x45;
case SDLK_KP_MINUS: return 0x4e;
case SDLK_KP_MULTIPLY: return 0x43;
case SDLK_KP_DIVIDE: return 0x4b;
case SDLK_KP_ENTER: return 0x4c;
case SDLK_KP_EQUALS: return 0x51;
}
D(bug("Unhandled SDL keysym: %d\n", ks.sym));
return -1;
}
static int event2keycode(SDL_KeyboardEvent const &ev, bool key_down)
{
return kc_decode(ev.keysym, key_down);
}
static void force_complete_window_refresh()
{
if (display_type == DISPLAY_WINDOW) {
#ifdef ENABLE_VOSF
if (use_vosf) { // VOSF refresh
LOCK_VOSF;
PFLAG_SET_ALL;
UNLOCK_VOSF;
}
#endif
// Ensure each byte of the_buffer_copy differs from the_buffer to force a full update.
const VIDEO_MODE &mode = VideoMonitors[0]->get_current_mode();
const int len = VIDEO_MODE_ROW_BYTES * VIDEO_MODE_Y;
for (int i = 0; i < len; i++)
the_buffer_copy[i] = !the_buffer[i];
}
}
/*
* SDL event handling
*/
static void handle_events(void)
{
SDL_Event events[10];
const int n_max_events = sizeof(events) / sizeof(events[0]);
int n_events;
while ((n_events = SDL_PeepEvents(events, n_max_events, SDL_GETEVENT, sdl_eventmask)) > 0) {
for (int i = 0; i < n_events; i++) {
SDL_Event const & event = events[i];
switch (event.type) {
// Mouse button
case SDL_MOUSEBUTTONDOWN: {
unsigned int button = event.button.button;
if (button == SDL_BUTTON_LEFT)
ADBMouseDown(0);
else if (button == SDL_BUTTON_RIGHT)
ADBMouseDown(1);
else if (button == SDL_BUTTON_MIDDLE)
ADBMouseDown(2);
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 SDL_MOUSEBUTTONUP: {
unsigned int button = event.button.button;
if (button == SDL_BUTTON_LEFT)
ADBMouseUp(0);
else if (button == SDL_BUTTON_RIGHT)
ADBMouseUp(1);
else if (button == SDL_BUTTON_MIDDLE)
ADBMouseUp(2);
break;
}
// Mouse moved
case SDL_MOUSEMOTION:
if (mouse_grabbed) {
drv->mouse_moved(event.motion.xrel, event.motion.yrel);
} else {
drv->mouse_moved(event.motion.x, event.motion.y);
}
break;
// Keyboard
case SDL_KEYDOWN: {
int code = -1;
if (use_keycodes && !is_modifier_key(event.key)) {
if (event2keycode(event.key, true) != -2) // This is called to process the hotkeys
code = keycode_table[event.key.keysym.scancode & 0xff];
} else
code = event2keycode(event.key, true);
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);
if (code == 0x36)
ctrl_down = true;
} else {
if (code == 0x31)
drv->resume(); // Space wakes us up
}
}
break;
}
case SDL_KEYUP: {
int code = -1;
if (use_keycodes && !is_modifier_key(event.key)) {
if (event2keycode(event.key, false) != -2) // This is called to process the hotkeys
code = keycode_table[event.key.keysym.scancode & 0xff];
} else
code = event2keycode(event.key, false);
if (code >= 0) {
if (code == 0x39) { // Caps Lock released
if (caps_on) {
ADBKeyUp(code);
caps_on = false;
} else {
ADBKeyDown(code);
caps_on = true;
}
} else
ADBKeyUp(code);
if (code == 0x36)
ctrl_down = false;
}
break;
}
// Hidden parts exposed, force complete refresh of window
case SDL_VIDEOEXPOSE:
force_complete_window_refresh();
break;
// Window "close" widget clicked
case SDL_QUIT:
ADBKeyDown(0x7f); // Power key
ADBKeyUp(0x7f);
break;
// Application activate/deactivate
case SDL_ACTIVEEVENT:
// Force a complete window refresh when activating, to avoid redraw artifacts otherwise.
if (event.active.gain && (event.active.state & SDL_APPACTIVE))
force_complete_window_refresh();
break;
}
}
}
}
/*
* Window display update
*/
// Static display update (fixed frame rate, but incremental)
static void update_display_static(driver_base *drv)
{
// Incremental update code
int wide = 0, high = 0;
uint32 x1, x2, y1, y2;
const VIDEO_MODE &mode = drv->mode;
int bytes_per_row = VIDEO_MODE_ROW_BYTES;
uint8 *p, *p2;
// Check for first line from top and first line from bottom that have changed
y1 = 0;
for (uint32 j = 0; j < VIDEO_MODE_Y; 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 (uint32 j = VIDEO_MODE_Y; j-- > y1; ) {
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 (VIDEO_MODE_DEPTH < VIDEO_DEPTH_8BIT) {
const int src_bytes_per_row = bytes_per_row;
const int dst_bytes_per_row = drv->s->pitch;
const int pixels_per_byte = VIDEO_MODE_X / src_bytes_per_row;
x1 = VIDEO_MODE_X / pixels_per_byte;
for (uint32 j = y1; j <= y2; j++) {
p = &the_buffer[j * bytes_per_row];
p2 = &the_buffer_copy[j * bytes_per_row];
for (uint32 i = 0; i < x1; i++) {
if (*p != *p2) {
x1 = i;
break;
}
p++; p2++;
}
}
x2 = x1;
for (uint32 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 (uint32 i = (VIDEO_MODE_X / pixels_per_byte); i > x2; i--) {
p--; p2--;
if (*p != *p2) {
x2 = i;
break;
}
}
}
x1 *= pixels_per_byte;
x2 *= pixels_per_byte;
wide = (x2 - x1 + pixels_per_byte - 1) & -pixels_per_byte;
// Update copy of the_buffer
if (high && wide) {
// Lock surface, if required
if (SDL_MUSTLOCK(drv->s))
SDL_LockSurface(drv->s);
// Blit to screen surface
int si = y1 * src_bytes_per_row + (x1 / pixels_per_byte);
int di = y1 * dst_bytes_per_row + x1;
for (uint32 j = y1; j <= y2; j++) {
memcpy(the_buffer_copy + si, the_buffer + si, wide / pixels_per_byte);
Screen_blit((uint8 *)drv->s->pixels + di, the_buffer + si, wide / pixels_per_byte);
si += src_bytes_per_row;
di += dst_bytes_per_row;
}
// Unlock surface, if required
if (SDL_MUSTLOCK(drv->s))
SDL_UnlockSurface(drv->s);
// Refresh display
SDL_UpdateRect(drv->s, x1, y1, wide, high);
}
} else {
const int bytes_per_pixel = VIDEO_MODE_ROW_BYTES / VIDEO_MODE_X;
const int dst_bytes_per_row = drv->s->pitch;
x1 = VIDEO_MODE_X;
for (uint32 j = y1; j <= y2; j++) {
p = &the_buffer[j * bytes_per_row];
p2 = &the_buffer_copy[j * bytes_per_row];
for (uint32 i = 0; i < x1 * bytes_per_pixel; i++) {
if (*p != *p2) {
x1 = i / bytes_per_pixel;
break;
}
p++; p2++;
}
}
x2 = x1;
for (uint32 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 (uint32 i = VIDEO_MODE_X * bytes_per_pixel; i > x2 * bytes_per_pixel; i--) {
p--;
p2--;
if (*p != *p2) {
x2 = i / bytes_per_pixel;
break;
}
}
}
wide = x2 - x1;
// Update copy of the_buffer
if (high && wide) {
// Lock surface, if required
if (SDL_MUSTLOCK(drv->s))
SDL_LockSurface(drv->s);
// Blit to screen surface
for (uint32 j = y1; j <= y2; j++) {
uint32 i = j * bytes_per_row + x1 * bytes_per_pixel;
int dst_i = j * dst_bytes_per_row + x1 * bytes_per_pixel;
memcpy(the_buffer_copy + i, the_buffer + i, bytes_per_pixel * wide);
Screen_blit((uint8 *)drv->s->pixels + dst_i, the_buffer + i, bytes_per_pixel * wide);
}
// Unlock surface, if required
if (SDL_MUSTLOCK(drv->s))
SDL_UnlockSurface(drv->s);
// Refresh display
SDL_UpdateRect(drv->s, x1, y1, wide, high);
}
}
}
}
// Static display update (fixed frame rate, bounding boxes based)
// XXX use NQD bounding boxes to help detect dirty areas?
static void update_display_static_bbox(driver_base *drv)
{
const VIDEO_MODE &mode = drv->mode;
// Allocate bounding boxes for SDL_UpdateRects()
const uint32 N_PIXELS = 64;
const uint32 n_x_boxes = (VIDEO_MODE_X + N_PIXELS - 1) / N_PIXELS;
const uint32 n_y_boxes = (VIDEO_MODE_Y + N_PIXELS - 1) / N_PIXELS;
SDL_Rect *boxes = (SDL_Rect *)alloca(sizeof(SDL_Rect) * n_x_boxes * n_y_boxes);
uint32 nr_boxes = 0;
// Lock surface, if required
if (SDL_MUSTLOCK(drv->s))
SDL_LockSurface(drv->s);
// Update the surface from Mac screen
const uint32 bytes_per_row = VIDEO_MODE_ROW_BYTES;
const uint32 bytes_per_pixel = bytes_per_row / VIDEO_MODE_X;
const uint32 dst_bytes_per_row = drv->s->pitch;
for (uint32 y = 0; y < VIDEO_MODE_Y; y += N_PIXELS) {
uint32 h = N_PIXELS;
if (h > VIDEO_MODE_Y - y)
h = VIDEO_MODE_Y - y;
for (uint32 x = 0; x < VIDEO_MODE_X; x += N_PIXELS) {
uint32 w = N_PIXELS;
if (w > VIDEO_MODE_X - x)
w = VIDEO_MODE_X - x;
const int xs = w * bytes_per_pixel;
const int xb = x * bytes_per_pixel;
bool dirty = false;
for (uint32 j = y; j < (y + h); j++) {
const uint32 yb = j * bytes_per_row;
const uint32 dst_yb = j * dst_bytes_per_row;
if (memcmp(&the_buffer[yb + xb], &the_buffer_copy[yb + xb], xs) != 0) {
memcpy(&the_buffer_copy[yb + xb], &the_buffer[yb + xb], xs);
Screen_blit((uint8 *)drv->s->pixels + dst_yb + xb, the_buffer + yb + xb, xs);
dirty = true;
}
}
if (dirty) {
boxes[nr_boxes].x = x;
boxes[nr_boxes].y = y;
boxes[nr_boxes].w = w;
boxes[nr_boxes].h = h;
nr_boxes++;
}
}
}
// Unlock surface, if required
if (SDL_MUSTLOCK(drv->s))
SDL_UnlockSurface(drv->s);
// Refresh display
if (nr_boxes)
SDL_UpdateRects(drv->s, nr_boxes, boxes);
}
// We suggest the compiler to inline the next two functions so that it
// may specialise the code according to the current screen depth and
// display type. A clever compiler would do that job by itself though...
// NOTE: update_display_vosf is inlined too
static inline void possibly_quit_dga_mode()
{
// Quit DGA mode if requested (something terrible has happened and we
// want to give control back to the user)
if (quit_full_screen) {
quit_full_screen = false;
delete drv;
drv = NULL;
}
}
static inline void possibly_ungrab_mouse()
{
// Ungrab mouse if requested (something terrible has happened and we
// want to give control back to the user)
if (quit_full_screen) {
quit_full_screen = false;
if (drv)
drv->ungrab_mouse();
}
}
static inline void handle_palette_changes(void)
{
LOCK_PALETTE;
if (sdl_palette_changed) {
sdl_palette_changed = false;
drv->update_palette();
}
UNLOCK_PALETTE;
}
static void video_refresh_window_static(void);
static void video_refresh_dga(void)
{
// Quit DGA mode if requested
possibly_quit_dga_mode();
video_refresh_window_static();
}
#ifdef ENABLE_VOSF
#if REAL_ADDRESSING || DIRECT_ADDRESSING
static void video_refresh_dga_vosf(void)
{
// Quit DGA mode if requested
possibly_quit_dga_mode();
// Update display (VOSF variant)
static uint32 tick_counter = 0;
if (++tick_counter >= frame_skip) {
tick_counter = 0;
if (mainBuffer.dirty) {
LOCK_VOSF;
update_display_dga_vosf(drv);
UNLOCK_VOSF;
}
}
}
#endif
static void video_refresh_window_vosf(void)
{
// Ungrab mouse if requested
possibly_ungrab_mouse();
// Update display (VOSF variant)
static uint32 tick_counter = 0;
if (++tick_counter >= frame_skip) {
tick_counter = 0;
if (mainBuffer.dirty) {
LOCK_VOSF;
update_display_window_vosf(drv);
UNLOCK_VOSF;
}
}
}
#endif // def ENABLE_VOSF
static void video_refresh_window_static(void)
{
// Ungrab mouse if requested
possibly_ungrab_mouse();
// Update display (static variant)
static uint32 tick_counter = 0;
if (++tick_counter >= frame_skip) {
tick_counter = 0;
const VIDEO_MODE &mode = drv->mode;
if ((int)VIDEO_MODE_DEPTH >= VIDEO_DEPTH_8BIT)
update_display_static_bbox(drv);
else
update_display_static(drv);
}
}
/*
* Thread for screen refresh, input handling etc.
*/
static void VideoRefreshInit(void)
{
// TODO: set up specialised 8bpp VideoRefresh handlers ?
if (display_type == DISPLAY_SCREEN) {
#if ENABLE_VOSF && (REAL_ADDRESSING || DIRECT_ADDRESSING)
if (use_vosf)
video_refresh = video_refresh_dga_vosf;
else
#endif
video_refresh = video_refresh_dga;
}
else {
#ifdef ENABLE_VOSF
if (use_vosf)
video_refresh = video_refresh_window_vosf;
else
#endif
video_refresh = video_refresh_window_static;
}
}
static inline void do_video_refresh(void)
{
// Handle SDL events
handle_events();
// Update display
video_refresh();
// Set new palette if it was changed
handle_palette_changes();
}
// This function is called on non-threaded platforms from a timer interrupt
void VideoRefresh(void)
{
// We need to check redraw_thread_active to inhibit refreshed during
// mode changes on non-threaded platforms
if (!redraw_thread_active)
return;
// Process pending events and update display
do_video_refresh();
}
const int VIDEO_REFRESH_HZ = 60;
const int VIDEO_REFRESH_DELAY = 1000000 / VIDEO_REFRESH_HZ;
#ifndef USE_CPU_EMUL_SERVICES
static int redraw_func(void *arg)
{
uint64 start = GetTicks_usec();
int64 ticks = 0;
uint64 next = GetTicks_usec() + VIDEO_REFRESH_DELAY;
while (!redraw_thread_cancel) {
// Wait
next += VIDEO_REFRESH_DELAY;
int32 delay = int32(next - GetTicks_usec());
if (delay > 0)
Delay_usec(delay);
else if (delay < -VIDEO_REFRESH_DELAY)
next = GetTicks_usec();
ticks++;
// Pause if requested (during video mode switches)
if (thread_stop_req) {
thread_stop_ack = true;
continue;
}
// Process pending events and update display
do_video_refresh();
}
uint64 end = GetTicks_usec();
D(bug("%lld refreshes in %lld usec = %f refreshes/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
return 0;
}
#endif
/*
* Record dirty area from NQD
*/
#ifdef SHEEPSHAVER
void video_set_dirty_area(int x, int y, int w, int h)
{
#ifdef ENABLE_VOSF
const VIDEO_MODE &mode = drv->mode;
const unsigned screen_width = VIDEO_MODE_X;
const unsigned screen_height = VIDEO_MODE_Y;
const unsigned bytes_per_row = VIDEO_MODE_ROW_BYTES;
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
}
#endif
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