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cpcec-os.h
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cpcec-os.h
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// #### ###### #### ####### #### ------------------------- //
// ## ## ## ## ## ## ## # ## ## CPCEC, plain text Amstrad //
// ## ## ## ## ## # ## CPC emulator written in C //
// ## ##### ## #### ## as a postgraduate project //
// ## ## ## ## # ## by Cesar Nicolas-Gonzalez //
// ## ## ## ## ## ## # ## ## since 2018-12-01 till now //
// #### #### #### ####### #### ------------------------- //
// To compile the emulator for Windows 5.0+, the default platform, type
// "gcc cpcec.res -xc cpcec.c -luser32 -lgdi32 -lcomdlg32 -lshell32
// -lwinmm" or the equivalent options from your preferred C compiler.
// Optional DirectDraw support is enabled by appending "-DDDRAW -lddraw"
// Succesfully tested compilers: GCC 4.6.3 (-std=gnu99), 4.9.2, 5.1.0,
// 8.3.0 ; TCC 0.9.27 ; CLANG 3.7.1, 7.0.1 ; Pelles C 4.50.113 ; etc.
// START OF WINDOWS 5.0+ DEFINITIONS ================================ //
#include <windows.h> // KERNEL32.DLL, USER32.DLL, GDI32.DLL, WINMM.DLL, COMDLG32.DLL, SHELL32.DLL
#include <commdlg.h> // COMDLG32.DLL: getOpenFileName()...
#include <mmsystem.h> // WINMM.DLL: waveOutWrite()...
#include <shellapi.h> // SHELL32.DLL: DragQueryFile()...
#define STRMAX 288 // widespread in Windows
#define PATHCHAR '\\' // unlike '/' (POSIX)
#define strcasecmp _stricmp // from MSVCRT!
#define fsetsize(f,l) _chsize(_fileno(f),(l))
#include <io.h> // _chsize(),_fileno()...
// WIN32 is never UTF-8; it's either ANSI (...A) or UNICODE (...W)
#define I18N_MULTIPLY "\327"
#define I18N_DIVISION "\367"
#define MESSAGEBOX_WIDETAB "\t" // expect proportional font
#define GPL_3_LF " " // Windows provides its own line feeds
// general engine constants and variables --------------------------- //
//typedef unsigned char AUDIO_UNIT; // obsolete 8-bit audio
//#define AUDIO_BITDEPTH 8
//#define AUDIO_ZERO 128
typedef signed short AUDIO_UNIT; // standard 16-bit audio
#define AUDIO_BITDEPTH 16
#define AUDIO_ZERO 0
#define AUDIO_BYTESTEP (AUDIO_CHANNELS*AUDIO_BITDEPTH/8) // i.e. 1, 2 or 4 bytes
typedef DWORD VIDEO_UNIT; // the pixel style must be 0X00RRGGBB and nothing else!
BYTE audio_memory[AUDIO_BYTESTEP<<AUDIO_L2BUFFER]; // audio buffer
VIDEO_UNIT *video_frame,*video_blend; // video + blend frames, allocated on runtime
AUDIO_UNIT audio_frame[AUDIO_PLAYBACK/50*AUDIO_CHANNELS]; // audio frame; 50 is the lowest legal framerate
VIDEO_UNIT *video_target; // pointer to current video pixel
AUDIO_UNIT *audio_target; // pointer to current audio sample
char session_path[STRMAX],session_parmtr[STRMAX],session_tmpstr[STRMAX],session_substr[STRMAX],session_info[STRMAX]="";
unsigned char session_focused=0; // ignore joysticks and certain events when unfocused
RECT session_ideal; // ideal rectangle where the window fits perfectly; `right` and `bottom` are actually width and height
JOYINFOEX session_joy; // joystick+mouse buffers
HWND session_hwnd,session_hdlg=NULL; // window handle
HMENU session_menu=NULL; // menu handle
BYTE session_hidemenu=0; // normal or pop-up menu
HDC session_dc1=NULL,session_dc2=NULL; HGDIOBJ session_dib=NULL; // video structs
HWAVEOUT session_wo; WAVEHDR session_wh; MMTIME session_mmtime; // audio structs
VIDEO_UNIT *debug_frame; BYTE debug_dirty; // !0 (new redraw required) or 0 (redraw not required)
HGDIOBJ session_dbg=NULL; // the debug screen's own bitmap
#ifdef DDRAW
#include <ddraw.h>
LPDIRECTDRAW lpdd=NULL;
LPDIRECTDRAWCLIPPER lpddclip=NULL;
LPDIRECTDRAWSURFACE lpddfore=NULL,lpddback=NULL;
DDSURFACEDESC ddsd;
LPDIRECTDRAWSURFACE lpdd_dbg=NULL;
#endif
// A modern keyboard as seen by Windows through WM_KEYDOWN and WK_KEYUP; extended keys are shown here with bit 7 on.
// +----+ +-------------------+ +-------------------+ +-------------------+ +--------------+ *1 = trapped by Win32
// | 01 | | 3B | 3C | 3D | 3E | | 3F | 40 | 41 | 42 | | 43 | *1 | 57 | 58 | | *1 | 46 | 45 | *2 = sequence "1D B8"
// +----+ +-------------------+ +-------------------+ +-------------------+ +--------------+ *3 = "DB" ; *4 = "DC"
// +------------------------------------------------------------------------+ +--------------+ +-------------------+
// | 29 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 0A | 0B | 0C | 0D | 0E | | D2 | C7 | C9 | | C5 | B5 | 37 | 4A |
// +------------------------------------------------------------------------+ +--------------+ +-------------------+
// | 0F | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 1A | 1B | | | D3 | CF | D1 | | 47 | 48 | 49 | |
// +------------------------------------------------------------------+ 1C | +--------------+ +--------------+ 4E |
// | 3A | 1E | 1F | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 2B | | | 4B | 4C | 4D | |
// +------------------------------------------------------------------------+ +----+ +-------------------+
// | 2A | 56 | 2C | 2D | 2E | 2F | 30 | 31 | 32 | 33 | 34 | 35 | 36 | | C8 | | 4F | 50 | 51 | |
// +------------------------------------------------------------------------+ +--------------+ +--------------+ 9C |
// | 1D | *3 | *1 | 39 | *2 | *4 | DD | 9D | | CB | D0 | CD | | 52 | 53 | |
// +------------------------------------------------------------------------+ +--------------+ +-------------------+
// watch out: we use the HARDWARE keyboard symbols rather than the SOFTWARE ones,
// to ensure that the emulator works regardless of the operating system language!
// function keys
#define KBCODE_F1 0X3B
#define KBCODE_F2 0X3C
#define KBCODE_F3 0X3D
#define KBCODE_F4 0X3E
#define KBCODE_F5 0X3F
#define KBCODE_F6 0X40
#define KBCODE_F7 0X41
#define KBCODE_F8 0X42
#define KBCODE_F9 0X43
#define KBCODE_F10 0X44
#define KBCODE_F11 0X57
#define KBCODE_F12 0X58
// leftmost keys
#define KBCODE_ESCAPE 0X01
#define KBCODE_TAB 0X0F
#define KBCODE_CAPSLOCK 0X3A
#define KBCODE_L_SHIFT 0X2A
#define KBCODE_L_CTRL 0X1D
//#define KBCODE_L_ALT 0X38 // trapped by Win32
// alphanumeric row 1
#define KBCODE_1 0X02
#define KBCODE_2 0X03
#define KBCODE_3 0X04
#define KBCODE_4 0X05
#define KBCODE_5 0X06
#define KBCODE_6 0X07
#define KBCODE_7 0X08
#define KBCODE_8 0X09
#define KBCODE_9 0X0A
#define KBCODE_0 0X0B
#define KBCODE_CHR1_1 0X0C
#define KBCODE_CHR1_2 0X0D
#define KBCODE_CHR4_5 0X29 // this is the key before "1" in modern keyboards
// alphanumeric row 2
#define KBCODE_Q 0X10
#define KBCODE_W 0X11
#define KBCODE_E 0X12
#define KBCODE_R 0X13
#define KBCODE_T 0X14
#define KBCODE_Y 0X15
#define KBCODE_U 0X16
#define KBCODE_I 0X17
#define KBCODE_O 0X18
#define KBCODE_P 0X19
#define KBCODE_CHR2_1 0X1A
#define KBCODE_CHR2_2 0X1B
// alphanumeric row 3
#define KBCODE_A 0X1E
#define KBCODE_S 0X1F
#define KBCODE_D 0X20
#define KBCODE_F 0X21
#define KBCODE_G 0X22
#define KBCODE_H 0X23
#define KBCODE_J 0X24
#define KBCODE_K 0X25
#define KBCODE_L 0X26
#define KBCODE_CHR3_1 0X27
#define KBCODE_CHR3_2 0X28
#define KBCODE_CHR3_3 0X2B
// alphanumeric row 4
#define KBCODE_Z 0X2C
#define KBCODE_X 0X2D
#define KBCODE_C 0X2E
#define KBCODE_V 0X2F
#define KBCODE_B 0X30
#define KBCODE_N 0X31
#define KBCODE_M 0X32
#define KBCODE_CHR4_1 0X33
#define KBCODE_CHR4_2 0X34
#define KBCODE_CHR4_3 0X35
#define KBCODE_CHR4_4 0X56 // this is the key before "Z" in 105-key modern keyboards; missing in 104-key layouts!
// rightmost keys
#define KBCODE_SPACE 0X39
#define KBCODE_BKSPACE 0X0E
#define KBCODE_ENTER 0X1C
#define KBCODE_R_SHIFT 0X36
#define KBCODE_R_CTRL 0X9D
//#define KBCODE_R_ALT 0XB8 // trapped by Win32
// extended keys
//#define KBCODE_PRINT 0X54 // trapped by Win32
#define KBCODE_SCR_LOCK 0X46
#define KBCODE_HOLD 0X45
#define KBCODE_INSERT 0XD2
#define KBCODE_DELETE 0XD3
#define KBCODE_HOME 0XC7
#define KBCODE_END 0XCF
#define KBCODE_PRIOR 0XC9
#define KBCODE_NEXT 0XD1
#define KBCODE_UP 0XC8
#define KBCODE_DOWN 0XD0
#define KBCODE_LEFT 0XCB
#define KBCODE_RIGHT 0XCD
#define KBCODE_APPS 0XDD // 0X5D in docs!?
// numeric keypad
#define KBCODE_NUM_LOCK 0XC5
#define KBCODE_X_7 0X47
#define KBCODE_X_8 0X48
#define KBCODE_X_9 0X49
#define KBCODE_X_4 0X4B
#define KBCODE_X_5 0X4C
#define KBCODE_X_6 0X4D
#define KBCODE_X_1 0X4F
#define KBCODE_X_2 0X50
#define KBCODE_X_3 0X51
#define KBCODE_X_0 0X52
#define KBCODE_X_DOT 0X53
#define KBCODE_X_ENTER 0X9C
#define KBCODE_X_ADD 0X4E
#define KBCODE_X_SUB 0X4A
#define KBCODE_X_MUL 0X37
#define KBCODE_X_DIV 0XB5
BYTE native_usbkey[]={ // WIN32-USB keyboard translation table; CONTROL, SHIFT, ALT and other modifiers are excluded
0, 0, 0, 0,
KBCODE_A, KBCODE_B, KBCODE_C, KBCODE_D,
KBCODE_E, KBCODE_F, KBCODE_G, KBCODE_H,
KBCODE_I, KBCODE_J, KBCODE_K, KBCODE_L,
KBCODE_M, KBCODE_N, KBCODE_O, KBCODE_P,
KBCODE_Q, KBCODE_R, KBCODE_S, KBCODE_T,
KBCODE_U, KBCODE_V, KBCODE_W, KBCODE_X,
KBCODE_Y, KBCODE_Z, KBCODE_1, KBCODE_2,
KBCODE_3, KBCODE_4, KBCODE_5, KBCODE_6,
KBCODE_7, KBCODE_8, KBCODE_9, KBCODE_0,
KBCODE_ENTER, KBCODE_ESCAPE, KBCODE_BKSPACE, KBCODE_TAB,
KBCODE_SPACE, KBCODE_CHR1_1, KBCODE_CHR1_2, KBCODE_CHR2_1,
KBCODE_CHR2_2, KBCODE_CHR3_3, 0, KBCODE_CHR3_1,
KBCODE_CHR3_2, KBCODE_CHR4_4, KBCODE_CHR4_1, KBCODE_CHR4_2,
KBCODE_CHR4_3, KBCODE_CAPSLOCK,KBCODE_F1, KBCODE_F2,
KBCODE_F3, KBCODE_F4, KBCODE_F5, KBCODE_F6,
KBCODE_F7, KBCODE_F8, KBCODE_F9, KBCODE_F10,
KBCODE_F11, KBCODE_F12, 0, KBCODE_SCR_LOCK,
KBCODE_HOLD, KBCODE_INSERT, KBCODE_HOME, KBCODE_PRIOR,
KBCODE_DELETE, KBCODE_END, KBCODE_NEXT, KBCODE_RIGHT,
KBCODE_LEFT, KBCODE_DOWN, KBCODE_UP, KBCODE_NUM_LOCK,
KBCODE_X_DIV, KBCODE_X_MUL, KBCODE_X_SUB, KBCODE_X_ADD,
KBCODE_X_ENTER, KBCODE_X_1, KBCODE_X_2, KBCODE_X_3,
KBCODE_X_4, KBCODE_X_5, KBCODE_X_6, KBCODE_X_7,
KBCODE_X_8, KBCODE_X_9, KBCODE_X_0, KBCODE_X_DOT,
KBCODE_CHR4_5, KBCODE_APPS};//=101
void usbkey2native(BYTE *t,const BYTE *s,int n) { while (n) { int k=*s++; *t++=k<sizeof(native_usbkey)?native_usbkey[k]:0; --n; } }
void native2usbkey(BYTE *t,const BYTE *s,int n) { while (n) { int k=0; while (k<sizeof(native_usbkey)&&*s!=native_usbkey[k]) ++k; *t++=k<sizeof(native_usbkey)?k:0; s++; --n; } }
BYTE kbd_k2j[]= // these keys can simulate a 4-button joystick
{ KBCODE_UP, KBCODE_DOWN, KBCODE_LEFT, KBCODE_RIGHT, KBCODE_Z, KBCODE_X, KBCODE_C, KBCODE_V };
unsigned char kbd_map[256]; // key-to-key translation map
// general engine functions and procedures -------------------------- //
void session_please(void) // stop activity for a short while
{
if (!session_wait) //video_framecount=1;
if (session_wait=1,session_audio) waveOutPause(session_wo);
}
void session_kbdclear(void)
{
MEMZERO(kbd_bit); MEMZERO(joy_bit);
}
#define session_kbdreset() MEMBYTE(kbd_map,~~~0) // init and clean key map up
void session_kbdsetup(const unsigned char *s,int l) // maps a series of virtual keys to the real ones
{
session_kbdclear();
while (l--)
{
int k=*s++;
kbd_map[k]=*s++;
}
}
int session_key_n_joy(int k) // handle some keys as joystick motions
{
if (session_key2joy)
for (int i=0;i<KBD_JOY_UNIQUE;++i)
if (kbd_k2j[i]==k)
return kbd_joy[i];
return kbd_map[k];
}
#define session_clrscr() InvalidateRect(session_hwnd,NULL,1)
int session_r_x,session_r_y,session_r_w,session_r_h; // actual location and size of the bitmap
void session_desktop(RECT *r) { SystemParametersInfo(SPI_GETWORKAREA,0,r,0); r->right-=r->left,r->bottom-=r->top; } // i.e. width and height
int session_resize(void) // dunno why, but one 100% render must happen before the resizing; performance falls otherwise :-/
{
static char z=1; if (session_fullblit)
{
if (z)
{
SetWindowLong(session_hwnd,GWL_STYLE,(GetWindowLong(session_hwnd,GWL_STYLE)&~WS_CAPTION));
//|WS_POPUP|WS_CLIPCHILDREN // hide caption and buttons
/*if (!session_hidemenu)*/ SetMenu(session_hwnd,NULL); // hide menu
ShowWindow(session_hwnd,SW_MAXIMIZE); // adjust to entire screen
z=0; session_clrscr(),session_dirty=1; // clean up and update options
}
}
else if (z!=session_zoomblit+1)
{
if (!z)
{
SetWindowLong(session_hwnd,GWL_STYLE,(GetWindowLong(session_hwnd,GWL_STYLE)|WS_CAPTION));
//&~WS_POPUP&~WS_CLIPCHILDREN // show caption and buttons
if (!session_hidemenu) SetMenu(session_hwnd,session_menu); // show menu
}
RECT r; session_desktop(&r); ShowWindow(session_hwnd,SW_RESTORE); // pseudo CW_CENTERED logic here :-(
int x,y; while ((x=(VIDEO_PIXELS_X>>1)*(session_zoomblit+2),y=(VIDEO_PIXELS_Y>>1)*(session_zoomblit+2)),
session_zoomblit>0&&(x*16>r.right*17||y*16>r.bottom*17)) // shrink if too big!
--session_zoomblit;
r.left+=(r.right-(x+=session_ideal.right-VIDEO_PIXELS_X))>>1;
r.top+=(r.bottom-(y+=session_ideal.bottom-VIDEO_PIXELS_Y))>>1;
MoveWindow(session_hwnd,r.left,r.top,x,y,1); // resize AND center!
z=session_zoomblit+1; session_clrscr(),session_dirty=1; // clean up and update options
}
return z;
}
void session_redraw(HWND hwnd,HDC h) // redraw the window contents
{
RECT r; GetClientRect(hwnd,&r); // calculate window area
if ((session_r_w=(r.right-=r.left))>0&&(session_r_h=(r.bottom-=r.top))>0) // divisions by zero happen on WM_PAINT during window resizing!
{
int ox,oy; if (session_signal&SESSION_SIGNAL_DEBUG)
ox=0,oy=0;
else
ox=VIDEO_OFFSET_X,oy=VIDEO_OFFSET_Y;
if (session_r_w>session_r_h*VIDEO_PIXELS_X/VIDEO_PIXELS_Y) // window area is too wide?
session_r_w=session_r_h*VIDEO_PIXELS_X/VIDEO_PIXELS_Y;
if (session_r_h>session_r_w*VIDEO_PIXELS_Y/VIDEO_PIXELS_X) // window area is too tall?
session_r_h=session_r_w*VIDEO_PIXELS_Y/VIDEO_PIXELS_X;
//if (session_fullblit) // maximum integer zoom: 100%, 150%, 200%...
session_r_w=((session_r_w*17)/VIDEO_PIXELS_X/8)*VIDEO_PIXELS_X/2, // "*17../16../1"
session_r_h=((session_r_h*17)/VIDEO_PIXELS_Y/8)*VIDEO_PIXELS_Y/2; // forbids N+50%
if (session_r_w<VIDEO_PIXELS_X||session_r_h<VIDEO_PIXELS_Y)
session_r_w=VIDEO_PIXELS_X,session_r_h=VIDEO_PIXELS_Y; // window area is too small!
session_r_x=(r.right-session_r_w)>>1,session_r_y=(r.bottom-session_r_h)>>1; // locate bitmap on window center
#ifdef DDRAW
if (lpddback)
{
LPDIRECTDRAWSURFACE l=(session_signal&SESSION_SIGNAL_DEBUG)?lpdd_dbg:lpddback;
IDirectDrawSurface_Unlock(l,0);
//int q=1; // don't redraw if something went wrong
if (IDirectDrawSurface_IsLost(lpddfore))
/*q=0,*/IDirectDrawSurface_Restore(lpddfore);
else if (IDirectDrawSurface_IsLost(lpddback))
/*q=0,*/IDirectDrawSurface_Restore(lpddback);
else if (IDirectDrawSurface_IsLost(lpdd_dbg))
/*q=0,*/IDirectDrawSurface_Restore(lpdd_dbg);
else //if (q) // not sure if we can redraw even when !q ...
{
POINT p; p.x=p.y=0; // some C compilers dislike `POINT p={.x=0,.y=0}`... see also SDL_Rect in CPCEC-OX.H :-(
if (ClientToScreen(hwnd,&p)) // can this ever fail!?
{
RECT rr;
rr.right=(rr.left=ox)+VIDEO_PIXELS_X;
rr.bottom=(rr.top=oy)+VIDEO_PIXELS_Y;
r.right=(r.left=p.x+session_r_x)+session_r_w;
r.bottom=(r.top=p.y+session_r_y)+session_r_h;
IDirectDrawSurface_Blt(lpddfore,&r,l,&rr,DDBLT_WAIT,0);
}
}
ddsd.dwSize=sizeof(ddsd); IDirectDrawSurface_Lock(l,0,&ddsd,DDLOCK_SURFACEMEMORYPTR|DDLOCK_WAIT,0);
if (session_signal&SESSION_SIGNAL_DEBUG)
debug_frame=ddsd.lpSurface;
else
{
ox=video_target-video_frame; // the video target pointer...
video_target=(video_frame=ddsd.lpSurface)+ox; // ...must follow the frame!
}
}
else
#endif
{
HGDIOBJ session_oldselect; if (session_oldselect=SelectObject(session_dc2,session_signal&SESSION_SIGNAL_DEBUG?session_dbg:session_dib))
{
if (session_hardblit=(session_r_w<=VIDEO_PIXELS_X||session_r_h<=VIDEO_PIXELS_Y)) // window area is a perfect fit?
BitBlt(h,session_r_x,session_r_y,VIDEO_PIXELS_X,VIDEO_PIXELS_Y,session_dc2,ox,oy,SRCCOPY); // fast :-)
else
StretchBlt(h,session_r_x,session_r_y,session_r_w,session_r_h,session_dc2,ox,oy,VIDEO_PIXELS_X,VIDEO_PIXELS_Y,SRCCOPY); // slow :-(
SelectObject(session_dc2,session_oldselect);
}
}
}
}
int session_contextmenu(void) // used only when the normal menu is disabled
{
POINT p; return (session_hidemenu&&session_menu)?GetCursorPos(&p),TrackPopupMenu(session_menu,0,p.x,p.y,0,session_hwnd,NULL):0;
}
LRESULT CALLBACK mainproc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam) // window callback function
{
int k; switch (msg)
{
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_SIZING:
if (((LPRECT)lparam)->right-((LPRECT)lparam)->left<session_ideal.right) // too narrow?
switch (wparam)
{
case WMSZ_TOPLEFT: case WMSZ_LEFT: case WMSZ_BOTTOMLEFT:
((LPRECT)lparam)->left=((LPRECT)lparam)->right-session_ideal.right;
break;
case WMSZ_RIGHT: case WMSZ_TOPRIGHT: case WMSZ_BOTTOMRIGHT:
((LPRECT)lparam)->right=((LPRECT)lparam)->left+session_ideal.right;
break;
}
if (((LPRECT)lparam)->bottom-((LPRECT)lparam)->top<session_ideal.bottom) // too short?
switch (wparam)
{
case WMSZ_TOPLEFT: case WMSZ_TOP: case WMSZ_TOPRIGHT:
((LPRECT)lparam)->top=((LPRECT)lparam)->bottom-session_ideal.bottom;
break;
case WMSZ_BOTTOMLEFT: case WMSZ_BOTTOM: case WMSZ_BOTTOMRIGHT:
((LPRECT)lparam)->bottom=((LPRECT)lparam)->top+session_ideal.bottom;
break;
}
break;
case WM_SIZE:
session_clrscr(); // force full update! there's dirt otherwise!
break;
case WM_SETFOCUS:
session_focused=1;
break;
case WM_PAINT:
{
PAINTSTRUCT ps; HDC h;
if (h=BeginPaint(hwnd,&ps))
session_redraw(hwnd,h),EndPaint(hwnd,&ps);
}
break;
case WM_COMMAND:
if (0X0080==(WORD)wparam) // Exit
PostMessage(hwnd,WM_CLOSE,0,0);
else
{
session_shift=!!(wparam&0X4000); // bit 6 means SHIFT KEY ON
session_event=wparam&0XBFFF; // cfr infra: bit 7 means CONTROL KEY OFF
}
break;
case WM_MBUTTONDBLCLK+1: // workaround: WINUSER.H sometimes lacks WM_MOUSEWHEEL
if ((short)HIWORD(wparam)<0) session_event=debug_xlat(KBCODE_NEXT);
else if ((short)HIWORD(wparam)) session_event=debug_xlat(KBCODE_PRIOR);
break;
case WM_LBUTTONUP:
if (session_signal&SESSION_SIGNAL_DEBUG)
session_event=debug_xlat(-1);
case WM_LBUTTONDOWN:
case WM_MOUSEMOVE: // no `break`!
#ifdef MAUS_EMULATION
session_maus_z=wparam&MK_LBUTTON;
#endif
session_maus_y=session_r_h>0?((HIWORD(lparam)-session_r_y)*VIDEO_PIXELS_Y+session_r_h/2)/session_r_h:-1;
session_maus_x=session_r_w>0?((LOWORD(lparam)-session_r_x)*VIDEO_PIXELS_X+session_r_w/2)/session_r_w:-1;
break;
case WM_RBUTTONUP:
session_contextmenu();
break;
case WM_KEYDOWN:
session_shift=GetKeyState(VK_SHIFT)<0;
if (session_signal&SESSION_SIGNAL_DEBUG) // only relevant inside debugger, see below
session_event=debug_xlat(((HIWORD(lparam))&127)+(((HIWORD(lparam))>>1)&128));
if ((k=session_key_n_joy(((HIWORD(lparam))&127)+(((HIWORD(lparam))>>1)&128)))<128) // normal key
{
if (!(session_signal&SESSION_SIGNAL_DEBUG)) // only relevant outside debugger
kbd_bit_set(k);
}
else if (!session_event) // special key, but only if not already set by debugger
session_event=(k-(GetKeyState(VK_CONTROL)<0?128:0))<<8;
break;
case WM_CHAR: // always follows WM_KEYDOWN; the `session_scan` loop seems not to trigger this, unlike SDL2
if (session_signal&SESSION_SIGNAL_DEBUG) // only relevant inside debugger
session_event=wparam>32&&wparam<=255?wparam:0; // exclude SPACE and non-visible codes!
break;
case WM_KEYUP:
session_shift=GetKeyState(VK_SHIFT)<0;
if ((k=session_key_n_joy(((HIWORD(lparam))&127)+(((HIWORD(lparam))>>1)&128)))<128) // normal key
kbd_bit_res(k);
break;
case WM_DROPFILES:
session_shift=GetKeyState(VK_SHIFT)<0,session_event=0X8000;
DragQueryFile((HDROP)wparam,0,(LPTSTR)session_parmtr,STRMAX);
DragFinish((HDROP)wparam);
break;
//case WM_ENTERIDLE: // pause before showing dialogboxes or menus
case WM_ENTERSIZEMOVE: // pause before moving the window
case WM_ENTERMENULOOP: // pause before showing the menus
session_please();
case WM_KILLFOCUS: // no `break`!
session_kbdclear(); // loss of focus: no keys!
default: // no `break`!
if (msg==WM_SYSKEYDOWN)
switch (wparam)
{
case VK_F10: // F10 shows the popup menu
if (session_contextmenu()) return 0; // skip OS if the popup menu is allowed
break;
case VK_RETURN: // ALT+RETURN toggles fullscreen
return session_fullblit=!session_fullblit,session_resize(),0; // skip OS
case VK_UP: //case VK_ADD: case 0XBB: // ALT+UP raises the zoom
if (!session_fullblit&&session_zoomblit<4) ++session_zoomblit,session_resize();
return 0;
case VK_DOWN: //case VK_SUBTRACT: case 0XBD: // ALT+DOWN lowers it
if (!session_fullblit&&session_zoomblit>0) --session_zoomblit,session_resize();
return 0;
}
else if (msg==WM_KILLFOCUS)
session_focused=0;
return DefWindowProc(hwnd,msg,wparam,lparam);
}
return 0;
}
INLINE char *session_create(char *s) // create video+audio devices and set menu; 0 OK, !0 ERROR
{
OSVERSIONINFO win32_version; HMENU session_submenu=NULL;
win32_version.dwOSVersionInfoSize=sizeof(win32_version); GetVersionEx(&win32_version);
sprintf(session_version,"%lu.%lu",win32_version.dwMajorVersion,win32_version.dwMinorVersion);
char c,*t; int i,j;
/*if (!session_softblit)*/ while (c=*s++)
{
if (c=='=') // separator?
{
while (*s++!='\n') {} // ignore remainder
AppendMenu(session_submenu,MF_SEPARATOR,0,0);
}
else if (c=='0') // menu item?
{
t=--s;
i=strtol(t,&s,0); // allow either hexa or decimal
t=session_tmpstr;
++s;
while ((c=*s++)!='\n') // string with shortcuts
*t++=c=='_'?'&':c;
*t=0;
AppendMenu(session_submenu,MF_STRING,i,session_tmpstr);
}
else // menu block
{
if (!session_menu)
session_menu=session_hidemenu?CreatePopupMenu():CreateMenu();
if (session_submenu)
AppendMenu(session_menu,MF_POPUP,(UINT_PTR)session_submenu,session_parmtr);
session_submenu=CreateMenu();
t=session_parmtr;
*t++='&'; // shortcut
--s;
while ((c=*s++)!='\n') // string, no shortcuts
*t++=c;
*t=0;
}
}
if (session_menu&&session_submenu)
AppendMenu(session_menu,MF_POPUP,(UINT_PTR)session_submenu,session_parmtr);
WNDCLASS wc; memset(&wc,0,sizeof(wc));
wc.lpfnWndProc=mainproc;
wc.hInstance=GetModuleHandle(0);
wc.hIcon=LoadIcon(wc.hInstance,MAKEINTRESOURCE(34002)); // value from RC file
wc.hCursor=LoadCursor(NULL,IDC_ARROW); // cannot be zero!!
wc.hbrBackground=(HBRUSH)(1+COLOR_WINDOWTEXT);//(COLOR_WINDOW+2);//0;//
//wc.lpszMenuName=NULL;
wc.lpszClassName=MY_CAPTION;
RegisterClass(&wc);
session_ideal.left=session_ideal.top=0;
session_ideal.right=VIDEO_PIXELS_X;
session_ideal.bottom=VIDEO_PIXELS_Y;
if (!session_submenu)
session_hidemenu=1,session_menu=NULL;
AdjustWindowRect(&session_ideal,i=WS_OVERLAPPEDWINDOW,!session_hidemenu); // calculate ideal size
session_ideal.right-=session_ideal.left;
session_ideal.bottom-=session_ideal.top;
//session_ideal.left=session_ideal.top=0; // ensure that the ideal area is defined as (0,0,WIDTH,HEIGHT)
RECT r; session_desktop(&r); // unlike SDL2, we lack a true CW_CENTERED option and we must calculate everything :-(
if (!(session_hwnd=CreateWindow(wc.lpszClassName,NULL,i,(r.right-session_ideal.right)>>1,(r.bottom-session_ideal.bottom)>>1,
session_ideal.right,session_ideal.bottom,NULL,session_hidemenu?NULL:session_menu,wc.hInstance,NULL))||
#ifdef VIDEO_HI_Y_RES
!(video_blend=malloc(sizeof(VIDEO_UNIT[VIDEO_PIXELS_Y*VIDEO_PIXELS_X])))
#else
!(video_blend=malloc(sizeof(VIDEO_UNIT[VIDEO_PIXELS_Y/2*VIDEO_PIXELS_X])))
#endif
) return "cannot create window"; // the OS will do DestroyWindow(session_hwnd) ...will it? :-/
DragAcceptFiles(session_hwnd,1);
#ifdef DDRAW
if (!session_softblit) // hardware-able DirectDraw
{
session_softblit=1; // fallback!
if (DirectDrawCreate(NULL,&lpdd,NULL)>=0)
{
IDirectDraw_SetCooperativeLevel(lpdd,session_hwnd,DDSCL_NORMAL);
//memset(&ddsd,0,sizeof(ddsd));//ZeroMemory(&ddsd,sizeof(ddsd));
ddsd.dwSize=sizeof(ddsd); ddsd.dwFlags=DDSD_CAPS;
ddsd.ddsCaps.dwCaps=DDSCAPS_PRIMARYSURFACE;
IDirectDraw_CreateSurface(lpdd,&ddsd,&lpddfore,NULL);
DDPIXELFORMAT ddpf; ddpf.dwSize=sizeof(ddpf);
IDirectDrawSurface_GetPixelFormat(lpddfore,&ddpf);
if (ddpf.dwRGBBitCount!=32) // lazy check, translating ARGB8888 to other bitdepths is a task better left to GDI
;//IDirectDrawSurface_Release(lpddback),lpddback=NULL; // failure
else
{
IDirectDraw_CreateClipper(lpdd,0,&lpddclip,NULL);
IDirectDrawClipper_SetHWnd(lpddclip,0,session_hwnd);
IDirectDrawSurface_SetClipper(lpddfore,lpddclip);
ddsd.dwSize=sizeof(ddsd); ddsd.dwFlags=DDSD_CAPS|DDSD_WIDTH|DDSD_HEIGHT;
ddsd.dwWidth=VIDEO_LENGTH_X; ddsd.dwHeight=VIDEO_LENGTH_Y;
ddsd.ddsCaps.dwCaps=DDSCAPS_OFFSCREENPLAIN|DDSCAPS_SYSTEMMEMORY;//DDSCAPS_VIDEOMEMORY;//
IDirectDraw_CreateSurface(lpdd,&ddsd,&lpddback,NULL);
IDirectDrawSurface_Lock(lpddback,0,&ddsd,DDLOCK_SURFACEMEMORYPTR|DDLOCK_WAIT,0),video_frame=ddsd.lpSurface;
session_softblit=ddsd.lPitch!=4*VIDEO_LENGTH_X; // success (1/2)
ddsd.dwSize=sizeof(ddsd); ddsd.dwFlags=DDSD_CAPS|DDSD_WIDTH|DDSD_HEIGHT;
ddsd.dwWidth=VIDEO_PIXELS_X; ddsd.dwHeight=VIDEO_PIXELS_Y;
ddsd.ddsCaps.dwCaps=DDSCAPS_OFFSCREENPLAIN|DDSCAPS_SYSTEMMEMORY;//DDSCAPS_VIDEOMEMORY;//
IDirectDraw_CreateSurface(lpdd,&ddsd,&lpdd_dbg,NULL);
IDirectDrawSurface_Lock(lpdd_dbg,0,&ddsd,DDLOCK_SURFACEMEMORYPTR|DDLOCK_WAIT,0),debug_frame=ddsd.lpSurface;
session_softblit|=ddsd.lPitch!=4*VIDEO_PIXELS_X; // success (2/2)
}
}
}
if (session_softblit) // software-only GDI bitmap
#endif
{
BITMAPINFO bmi; memset(&bmi,0,sizeof(bmi));
bmi.bmiHeader.biSize=sizeof(bmi.bmiHeader); // not `sizeof(bmi)`!
bmi.bmiHeader.biWidth=VIDEO_LENGTH_X;
bmi.bmiHeader.biHeight=-VIDEO_LENGTH_Y; // negative values make a top-to-bottom bitmap; Windows' default bitmap is bottom-to-top
bmi.bmiHeader.biPlanes=1; bmi.bmiHeader.biBitCount=32; // cfr. VIDEO_UNIT
bmi.bmiHeader.biCompression=BI_RGB;
session_dc1=GetDC(session_hwnd); // beware, we're assuming that if CreateWindow() succeeds all other USER and GDI calls will succeed too
session_dc2=CreateCompatibleDC(session_dc1);
session_dib=CreateDIBSection(session_dc1,&bmi,DIB_RGB_COLORS,(void**)&video_frame,NULL,0);
bmi.bmiHeader.biWidth=VIDEO_PIXELS_X;
bmi.bmiHeader.biHeight=-VIDEO_PIXELS_Y;
session_dbg=CreateDIBSection(session_dc1,&bmi,DIB_RGB_COLORS,(void**)&debug_frame,NULL,0);
}
// cleanup, joystick and sound
ShowWindow(session_hwnd,SW_SHOWDEFAULT); //UpdateWindow(session_hwnd);
session_joy.dwSize=sizeof(session_joy);
session_joy.dwFlags=JOY_RETURNALL;
if (session_stick)
{
JOYCAPS jc; i=joyGetNumDevs(),j=0;
cprintf("Detected %d joystick[s]: ",i);
while (j<i&&(joyGetDevCaps(j,&jc,sizeof(jc))||(cprintf("Joystick/controller #%d '%s' ",j,jc.szPname),joyGetPosEx(j,&session_joy))))
++j; // scan joysticks until we run out or one is OK
session_stick=(j<i)?j+1:0; cprintf(session_stick?"Joystick enabled!\n":"No joystick!\n"); // ID+1 if available, 0 if missing
}
//session_timer=GetTickCount(); // millisecond timer by default
session_wo=0; // no audio unless device is detected and enabled
if (session_audio)
{
memset(&session_mmtime,0,sizeof(session_mmtime));
session_mmtime.wType=TIME_SAMPLES; // Windows doesn't always provide TIME_MS!
WAVEFORMATEX wfex;
memset(&wfex,0,sizeof(wfex)); wfex.wFormatTag=WAVE_FORMAT_PCM;
wfex.nBlockAlign=(wfex.wBitsPerSample=AUDIO_BITDEPTH)/8*(wfex.nChannels=AUDIO_CHANNELS);
wfex.nAvgBytesPerSec=wfex.nBlockAlign*(wfex.nSamplesPerSec=AUDIO_PLAYBACK);
if (session_audio=!waveOutOpen(&session_wo,WAVE_MAPPER,&wfex,0,0,0))
{
memset(&session_wh,0,sizeof(session_wh));
MEMBYTE(audio_memory,AUDIO_ZERO);
session_wh.lpData=(BYTE*)audio_memory;
session_wh.dwBufferLength=wfex.nBlockAlign<<AUDIO_L2BUFFER;
session_wh.dwFlags=WHDR_BEGINLOOP|WHDR_ENDLOOP; // circular buffer
session_wh.dwLoops=-1; // loop forever!
waveOutPrepareHeader(session_wo,&session_wh,sizeof(session_wh));
waveOutWrite(session_wo,&session_wh,sizeof(session_wh)); // should be zero!
}
}
session_preset(); session_clean(); session_please();
session_redraw(session_hwnd,session_dc1); // dummy first redraw, session_resize() hinges on it
timeBeginPeriod(8); // WIN10 sets this value too high by default; 8 is recommended in multiple sources
return NULL;
}
INLINE int session_listen(void) // handle all pending messages; 0 OK, !0 EXIT
{
static int s=-1; if (s!=session_signal) // catch DEBUG and PAUSE
s=session_signal,session_dirty=debug_dirty=2;
if (session_signal&(SESSION_SIGNAL_DEBUG|SESSION_SIGNAL_PAUSE))
{
session_signal_frames&=~(SESSION_SIGNAL_DEBUG|SESSION_SIGNAL_PAUSE);
session_signal_scanlines&=~(SESSION_SIGNAL_DEBUG|SESSION_SIGNAL_PAUSE); // reset traps!
if (session_signal&SESSION_SIGNAL_DEBUG)
if (debug_dirty)
{
session_please(),session_debug_show(debug_dirty!=1),
session_redraw(session_hwnd,session_dc1),debug_dirty=0;
}
if (!session_paused) // set the caption just once
{
sprintf(session_tmpstr,"%s | %s | PAUSED",session_caption,session_info);
SetWindowText(session_hwnd,session_tmpstr);
session_please(),session_paused=1;
}
WaitMessage();
}
for (MSG msg;PeekMessage(&msg,NULL,0,0,PM_REMOVE);) //if (!session_hdlg||!IsDialogMessage(session_hdlg,&msg))
{
TranslateMessage(&msg);
if (msg.message==WM_QUIT)
return 1;
DispatchMessage(&msg);
if (session_event)
{
if (!((session_signal&SESSION_SIGNAL_DEBUG)&&session_debug_user(session_event)))
session_dirty=1,session_user(session_event);
session_event=0; //if (session_paused) ...?
}
}
if (session_dirty) session_dirty=0,session_clean();
return 0;
}
INLINE void session_render(void) // update video, audio and timers
{
int i,j; static int performance_t=0,performance_f=0,performance_b=0; ++performance_f;
static BYTE r=0,q=0; if (++r>session_rhythm||session_wait) r=0; // force update after wait
if (!video_framecount) // do we need to hurry up?
{
if (++performance_b,((video_interlaces=!video_interlaces)||!video_interlaced))
if (q) session_redraw(session_hwnd,session_dc1),q=0; // redraw once between two pauses
if (session_stick&&!session_key2joy) // do we need to check the joystick?
{
session_joy.dwSize=sizeof(session_joy);
session_joy.dwFlags=JOY_RETURNBUTTONS|JOY_RETURNPOVCTS|JOY_RETURNX|JOY_RETURNY|JOY_RETURNZ|JOY_RETURNR|JOY_RETURNCENTERED;
if (session_focused&&!joyGetPosEx(session_stick-1,&session_joy)) // without focus, ignore the joystick
{
j=((/*session_joy.dwPOV<0||*/session_joy.dwPOV>=36000)?(session_joy.dwYpos<0X4000?1:0)+(session_joy.dwYpos>=0XC000?2:0)+(session_joy.dwXpos<0X4000?4:0)+(session_joy.dwXpos>=0XC000?8:0) // axial
:(session_joy.dwPOV< 2250?1:session_joy.dwPOV< 6750?9:session_joy.dwPOV<11250?8:session_joy.dwPOV<15750?10: // angular: U (0), U-R (4500), R (9000), R-D (13500)
session_joy.dwPOV<20250?2:session_joy.dwPOV<24750?6:session_joy.dwPOV<29250?4:session_joy.dwPOV<33750?5:1)) // D (18000), D-L (22500), L (27000), L-U (31500)
+((session_joy.dwButtons&(JOY_BUTTON1/*|JOY_BUTTON5*/))?16:0)+((session_joy.dwButtons&(JOY_BUTTON2/*|JOY_BUTTON6*/))?32:0) // FIRE1, FIRE2 ...
+((session_joy.dwButtons&(JOY_BUTTON3/*|JOY_BUTTON7*/))?64:0)+((session_joy.dwButtons&(JOY_BUTTON4/*|JOY_BUTTON8*/))?128:0) // FIRE3, FIRE4 ...
/*+((session_joy.dwZpos<0X4000?4:0)+(session_joy.dwZpos>0XC000?8:0))
+((session_joy.dwRpos<0X4000?1:0)+(session_joy.dwRpos>0XC000?2:0))*/ // this is safe on my controller (Axis Z + Rotation Z) but perhaps not on other controllers
;
}
else
j=0; // joystick failure, release its keys
MEMZERO(joy_bit); /*if (j)*/ for (i=0;i<length(kbd_joy);++i)
if (j&(1<<i)) // joystick bit is set?
{ int k=kbd_joy[i]; joy_bit[k>>3]|=1<<(k&7); }
}
}
if (audio_required&&audio_filter) audio_playframe(); // audio filter: sample averaging
session_writewave(); session_writefilm(); // record wave+film frame
if (!r) // check timers and pauses
{
if (session_audio) // rely on audio clock; unlike SDL2, the Win32 audio clock is reliable :-)
{
static BYTE t=1; if (t!=(session_fast|audio_disabled)) // sound needs higher priority, but only on realtime
{
//BELOW_NORMAL_PRIORITY_CLASS was overkill and caused trouble on busy systems :-(
SetPriorityClass(GetCurrentProcess(),(t=session_fast|audio_disabled)?NORMAL_PRIORITY_CLASS:ABOVE_NORMAL_PRIORITY_CLASS);
//SetThreadPriority(GetCurrentThread(),(t=session_fast|audio_disabled)?THREAD_PRIORITY_NORMAL:THREAD_PRIORITY_ABOVE_NORMAL);
}
waveOutGetPosition(session_wo,&session_mmtime,sizeof(session_mmtime));
//if (!=MMSYSERR_NOERROR) session_audio=0,audio_disabled=-1; // audio device is lost! // can this really happen!?
i=session_mmtime.u.sample,j=AUDIO_PLAYBACK; // questionable -- this will break the timing every 13 hours of emulation at 44100 Hz :-(
}
else // use internal tick count as clock
i=GetTickCount(),j=1000; // questionable for similar reasons, albeit every 23 days :-(
if (i-performance_t>=0) // update performance percentage?
{
sprintf(session_tmpstr,"%s | %s | %s %s %d:%d%%",
session_caption,session_info,
#ifdef DDRAW
lpddback?"DDRAW":
#endif
session_hardblit?"GDI":"gdi",session_version,
(performance_b*100+VIDEO_PLAYBACK/2)/VIDEO_PLAYBACK,(performance_f*100+VIDEO_PLAYBACK/2)/VIDEO_PLAYBACK);
SetWindowText(session_hwnd,session_tmpstr);
performance_t=i+j,performance_f=performance_b=session_paused=0;
}
q=1; static BYTE p=0; if (session_wait|session_fast)
{
if (audio_fastmute) audio_disabled|=+8;
p=1,session_timer=i; // ensure that the next frame can be valid!
}
else
{
audio_disabled&=~8;
if (p) // recalc audio buffer?
p=0,audio_session=(((4-session_softplay)<<(AUDIO_L2BUFFER-(2)-1))+session_timer)*AUDIO_BYTESTEP;
int s; if (VIDEO_PLAYBACK==50) // always true on pure PAL systems
s=j/50; // PAL never needs any adjusting (`j` is 1000, 22050, 24000, 44100 or 48000)
else // (we avoid a warning here) always true on pure NTSC systems
{ static int s0=0; s=(s0+=j)/VIDEO_PLAYBACK; s0%=VIDEO_PLAYBACK; } // 60 Hz: [16,17,17]
if ((i=(session_timer+=s)-i)>=0)
{ if (i=(i>s?s:i)*1000/j) Sleep(i); } // avoid zero and overflows!
else if (i<-s&&!session_filmfile)//&&!video_framecount) // *!* threshold?
video_framecount=video_framelimit+2; // skip frame on timeout!
}
}
audio_session=(audio_session+AUDIO_LENGTH_Z*AUDIO_BYTESTEP)&((AUDIO_BYTESTEP<<AUDIO_L2BUFFER)-AUDIO_BYTESTEP); // add block size and wrap around buffer
if (session_audio) // manage audio buffer
{
static BYTE s=1; if (s!=audio_disabled)
if (s=audio_disabled) // silent mode needs cleanup
MEMBYTE(audio_memory,AUDIO_ZERO);
if (!audio_disabled)
{
int t=AUDIO_LENGTH_Z*AUDIO_BYTESTEP,u;
if ((u=(AUDIO_BYTESTEP<<AUDIO_L2BUFFER)-audio_session)<t) // wrap around?
memcpy(&audio_memory[audio_session],audio_frame,u),
memcpy( audio_memory,&((BYTE*)audio_frame)[u],t-u);
else
memcpy(&audio_memory[audio_session],audio_frame,t);
}
}
if (session_wait) // resume activity after a pause
if (session_wait=0,session_audio) waveOutRestart(session_wo);
}
INLINE void session_byebye(void) // delete video+audio devices
{
session_wrapup();
if (session_wo)
waveOutReset(session_wo),waveOutUnprepareHeader(session_wo,&session_wh,sizeof(session_wh)),waveOutClose(session_wo);
if (session_menu)
DestroyMenu(session_menu);
#ifdef DDRAW
if (lpddfore) IDirectDrawSurface_SetClipper(lpddfore,NULL),IDirectDrawSurface_Release(lpddfore);
if (lpddback) IDirectDrawSurface_Unlock(lpddback,0),IDirectDrawSurface_Release(lpddback);
if (lpdd_dbg) IDirectDrawSurface_Unlock(lpdd_dbg,0),IDirectDrawSurface_Release(lpdd_dbg);
if (lpddclip) IDirectDrawClipper_Release(lpddclip);
if (lpdd) IDirectDraw_Release(lpdd);
#endif
if (session_dbg) DeleteObject(session_dbg);
if (session_dc2) DeleteDC(session_dc2);
if (session_dib) DeleteObject(session_dib);
ReleaseDC(session_hwnd,session_dc1);
free(video_blend);
timeEndPeriod(8); // possibly unnecessary even on WIN10, as the programme is ending
}
// menu item functions ---------------------------------------------- //
void session_menucheck(int id,int q) // set the state of option `id` as `q`
{ if (session_menu) CheckMenuItem(session_menu,id,MF_BYCOMMAND+(q?MF_CHECKED:MF_UNCHECKED)); }
void session_menuradio(int id,int a,int z) // set the option `id` in the range `a-z`
{ if (session_menu) CheckMenuRadioItem(session_menu,a,z,id,MF_BYCOMMAND); }
// message box ------------------------------------------------------ //
void session_message(const char *s,const char *t) // show multi-lined text `s` under caption `t`
{ session_please(); MessageBox(session_hwnd,s,t,strchr(t,'?')?MB_ICONQUESTION:(strchr(t,'!')?MB_ICONEXCLAMATION:MB_OK)); }
void session_aboutme(const char *s,const char *t) // special case: "About.."
{
session_please();
MSGBOXPARAMS mbp;
mbp.cbSize=sizeof(mbp);
mbp.hwndOwner=session_hwnd;
mbp.hInstance=GetModuleHandle(0);
mbp.lpszText=s;
mbp.lpszCaption=t;
mbp.dwStyle=MB_OK|MB_USERICON;
mbp.lpszIcon=MAKEINTRESOURCE(34002);
mbp.dwContextHelpId=mbp.dwLanguageId=0;
mbp.lpfnMsgBoxCallback=NULL;
MessageBoxIndirect(&mbp);
}
// shared dialog data ----------------------------------------------- //
int session_dialog_return; // dialog outcome: integer
char *session_dialog_text; // dialog outcome: string
// input dialog ----------------------------------------------------- //
LRESULT CALLBACK inputproc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam) // dialog callback function
{
switch (msg)
{
case WM_INITDIALOG:
SetWindowText(hwnd,session_dialog_text);
SendDlgItemMessage(hwnd,12345,EM_SETLIMITTEXT,STRMAX-1,0);
return SendDlgItemMessage(hwnd,12345,WM_SETTEXT,0,(LPARAM)session_parmtr),session_dialog_return=-1;
/*case WM_SIZE:
RECT r; GetClientRect(hwnd,&r);
SetWindowPos(session_dialog_item,NULL,0,0,r.right,r.bottom*1/2,SWP_NOZORDER);
SetWindowPos(GetDlgItem(hwnd,IDOK),NULL,0,r.bottom*1/2,r.right/2,r.bottom/2,SWP_NOZORDER);
return SetWindowPos(GetDlgItem(hwnd,IDCANCEL),NULL,r.right/2,r.bottom*1/2,r.right/2,r.bottom/2,SWP_NOZORDER),1;*/
case WM_COMMAND:
if (LOWORD(wparam)==IDCANCEL)
EndDialog(hwnd,0);
else if (/*!HIWORD(wparam)&&*/LOWORD(wparam)==IDOK)
{
session_dialog_return=SendDlgItemMessage(hwnd,12345,WM_GETTEXT,STRMAX,(LPARAM)session_parmtr);
EndDialog(hwnd,0);
}
return 1;
}
return 0; // ignore other messages
}
int session_input(char *t) // `t` is the caption; returns <0 on error or LENGTH on success
{
session_please();
session_dialog_text=t;
DialogBoxParam(GetModuleHandle(0),(LPCSTR)34004,session_hwnd,(DLGPROC)inputproc,0);
return session_dialog_return; // both the source and target strings are in `session_parmtr`
}
// list dialog ------------------------------------------------------ //
LRESULT CALLBACK listproc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam) // dialog callback function
{
switch (msg)
{
case WM_INITDIALOG:
SetWindowText(hwnd,session_dialog_text);
char *l=(char*)lparam; while (*l)
{
SendDlgItemMessage(hwnd,12345,LB_ADDSTRING,0,(LPARAM)l);
while (*l++) {}
}
return SendDlgItemMessage(hwnd,12345,LB_SETCURSEL,session_dialog_return,0),session_dialog_return=-1; // select item
/*case WM_SIZE:
RECT r; GetClientRect(hwnd,&r);
SetWindowPos(session_dialog_item,NULL,0,0,r.right,r.bottom*15/16,SWP_NOZORDER);
SetWindowPos(GetDlgItem(hwnd,IDOK),NULL,0,r.bottom*15/16,r.right/2,r.bottom/16,SWP_NOZORDER);
return SetWindowPos(GetDlgItem(hwnd,IDCANCEL),NULL,r.right/2,r.bottom*15/16,r.right/2,r.bottom/16,SWP_NOZORDER),1;*/
case WM_COMMAND:
if (LOWORD(wparam)==IDCANCEL)
EndDialog(hwnd,0);
else if ((HIWORD(wparam)==LBN_DBLCLK)||(/*!HIWORD(wparam)&&*/LOWORD(wparam)==IDOK))
if ((session_dialog_return=SendDlgItemMessage(hwnd,12345,LB_GETCURSEL,0,0))>=0) // ignore OK if no item is selected
{
SendDlgItemMessage(hwnd,12345,LB_GETTEXT,session_dialog_return,(LPARAM)session_parmtr);
EndDialog(hwnd,0);
}
return 1;
}
return 0; // ignore other messages
}
int session_list(int i,const char *s,char *t) // `s` is a list of ASCIZ entries, `i` is the default chosen item, `t` is the caption; returns <0 on error or 0..n-1 on success
{
if (!*s) return -1; // empty!
session_please();
session_dialog_text=t;
session_dialog_return=i;
DialogBoxParam(GetModuleHandle(0),(LPCSTR)34003,session_hwnd,(DLGPROC)listproc,(LPARAM)s);
return session_dialog_return; // the string is in `session_parmtr`
}
// scan dialog ------------------------------------------------------ //
LRESULT CALLBACK scanproc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam) // dialog callback function
{
switch (msg)
{
case WM_INITDIALOG:
EnableWindow(session_hwnd,0);
SetWindowText(hwnd,session_dialog_text);
return SendDlgItemMessage(hwnd,12345,WM_SETTEXT,0,lparam),session_dialog_return=-1;
/*case WM_SIZE:
RECT r; GetClientRect(hwnd,&r);
return SetWindowPos(session_dialog_item,NULL,0,0,r.right,r.bottom,SWP_NOZORDER),1;*/
case WM_CLOSE:
EnableWindow(session_hwnd,1);
SetFocus(session_hwnd); // avoid glitches if the user switches to another window and then back to our dialog
session_hdlg=NULL;
return DestroyWindow(hwnd),1;
}
return 0; // ignore other messages
}
int session_scan(const char *s) // `s` is the name of the event; returns <0 on error or >=0 (keyboard code) on success
{
session_please();
session_dialog_text=txt_session_scan;
session_hdlg=CreateDialogParam(GetModuleHandle(0),(LPCSTR)34005,session_hwnd,(DLGPROC)scanproc,(LPARAM)s);
ShowWindow(session_hdlg,SW_SHOWDEFAULT); //UpdateWindow(session_hdlg);
for (MSG msg;session_hdlg&&GetMessage(&msg,NULL,0,0)>0;TranslateMessage(&msg),DispatchMessage(&msg))
if (msg.message==WM_KEYDOWN) // dialogs hide WM_KEYDOWN events, so we must track them here
{
int i=((HIWORD(msg.lParam))&127)+(((HIWORD(msg.lParam))>>1)&128);
if (i!=KBCODE_L_SHIFT&&i!=KBCODE_R_SHIFT&&i!=KBCODE_L_CTRL&&i!=KBCODE_R_CTRL
&&!((i>=KBCODE_F1&&i<=KBCODE_F10)||(i>=KBCODE_F11&&i<=KBCODE_F12)))
PostMessage(session_hdlg,WM_CLOSE,0,0),session_dialog_return=i==KBCODE_ESCAPE?-1:i;
}
return session_dialog_return; // the string is in `session_parmtr`
}
// file dialog ------------------------------------------------------ //
OPENFILENAME session_ofn;
int getftype(const char *s) // <0 = invalid path / nothing, 0 = file, >0 = directory
{
if (!s||!*s) return -1; // invalid path
int i=GetFileAttributes(s); return i>0?i&FILE_ATTRIBUTE_DIRECTORY:i;
}
int session_filedialog(char *r,const char *s,const char *t,int q,int f) // auxiliar function, see below
{
if (!*s) return 0; // empty! GetOpenFileName and co. return ZERO when an error happens or the user hits "CANCEL"
session_please();
memset(&session_ofn,0,sizeof(session_ofn));
session_ofn.lStructSize=sizeof(session_ofn);
session_ofn.hwndOwner=session_hwnd;
if (!r) r=session_path; // NULL path = default!
if (r!=session_tmpstr)
strcpy(session_tmpstr,r); // copy path, if required
int i=strlen(session_tmpstr); // sanitize path
if (i&&session_tmpstr[--i]=='\\') // pure path?
if (i&&session_tmpstr[i-1]!=':') // avoid special case "C:\"
session_tmpstr[i]=0; // turn "C:\ABC\" into "C:\ABC"
r=strrchr(session_tmpstr,'\\');
*session_parmtr=0; // no file by default
if (!(i=getftype(session_tmpstr))) // valid file?
{