stub out linux demon; linux font provider; begin work, get windows/events up and running in os_gfx

This commit is contained in:
Ryan Fleury
2024-07-18 13:37:22 -07:00
parent ec9c68f55e
commit 4835264059
17 changed files with 999 additions and 481 deletions
+274 -37
View File
@@ -1,13 +1,45 @@
// Copyright (c) 2024 Epic Games Tools
// Licensed under the MIT license (https://opensource.org/license/mit/)
////////////////////////////////
//~ rjf: Helpers
internal OS_LNX_Window *
os_lnx_window_from_x11window(Window window)
{
OS_LNX_Window *result = 0;
for(OS_LNX_Window *w = os_lnx_gfx_state->first_window; w != 0; w = w->next)
{
if(w->window == window)
{
result = w;
break;
}
}
return result;
}
////////////////////////////////
//~ rjf: @os_hooks Main Initialization API (Implemented Per-OS)
internal void
os_gfx_init(void)
{
//- rjf: initialize basics
Arena *arena = arena_alloc();
os_lnx_gfx_state = push_array(arena, OS_LNX_GfxState, 1);
os_lnx_gfx_state->arena = arena;
os_lnx_gfx_state->display = XOpenDisplay(0);
//- rjf: calculate atoms
os_lnx_gfx_state->wm_delete_window_atom = XInternAtom(os_lnx_gfx_state->display, "WM_DELETE_WINDOW", 0);
os_lnx_gfx_state->wm_sync_request_atom = XInternAtom(os_lnx_gfx_state->display, "_NET_WM_SYNC_REQUEST", 0);
os_lnx_gfx_state->wm_sync_request_counter_atom = XInternAtom(os_lnx_gfx_state->display, "_NET_WM_SYNC_REQUEST_COUNTER", 0);
//- rjf: fill out gfx info
os_lnx_gfx_state->gfx_info.double_click_time = 0.5f;
os_lnx_gfx_state->gfx_info.caret_blink_time = 0.5f;
os_lnx_gfx_state->gfx_info.default_refresh_rate = 60.f;
}
////////////////////////////////
@@ -16,7 +48,7 @@ os_gfx_init(void)
internal OS_GfxInfo *
os_get_gfx_info(void)
{
return 0;
return &os_lnx_gfx_state->gfx_info;
}
////////////////////////////////
@@ -31,7 +63,8 @@ os_set_clipboard_text(String8 string)
internal String8
os_get_clipboard_text(Arena *arena)
{
String8 result = {0};
return result;
}
////////////////////////////////
@@ -40,121 +73,178 @@ os_get_clipboard_text(Arena *arena)
internal OS_Handle
os_window_open(Vec2F32 resolution, OS_WindowFlags flags, String8 title)
{
//- rjf: allocate window
OS_LNX_Window *w = os_lnx_gfx_state->free_window;
if(w)
{
SLLStackPop(os_lnx_gfx_state->free_window);
}
else
{
w = push_array_no_zero(os_lnx_gfx_state->arena, OS_LNX_Window, 1);
}
MemoryZeroStruct(w);
DLLPushBack(os_lnx_gfx_state->first_window, os_lnx_gfx_state->last_window, w);
//- rjf: create window & equip with x11 info
w->window = XCreateWindow(os_lnx_gfx_state->display,
XDefaultRootWindow(os_lnx_gfx_state->display),
0, 0, resolution.x, resolution.y,
0,
CopyFromParent,
InputOutput,
CopyFromParent,
0,
0);
XSelectInput(os_lnx_gfx_state->display, w->window,
ExposureMask|
PointerMotionMask|
ButtonPressMask|
ButtonReleaseMask|
KeyPressMask|
KeyReleaseMask|
FocusChangeMask);
Atom protocols[] =
{
os_lnx_gfx_state->wm_delete_window_atom,
os_lnx_gfx_state->wm_sync_request_atom,
};
XSetWMProtocols(os_lnx_gfx_state->display, w->window, protocols, ArrayCount(protocols));
{
XSyncValue initial_value;
XSyncIntToValue(&initial_value, 0);
w->counter_xid = XSyncCreateCounter(os_lnx_gfx_state->display, initial_value);
}
XChangeProperty(os_lnx_gfx_state->display, w->window, os_lnx_gfx_state->wm_sync_request_counter_atom, XA_CARDINAL, 32, PropModeReplace, (U8 *)&w->counter_xid, 1);
//- rjf: attach name
Temp scratch = scratch_begin(0, 0);
String8 title_copy = push_str8_copy(scratch.arena, title);
XStoreName(os_lnx_gfx_state->display, w->window, (char *)title_copy.str);
scratch_end(scratch);
//- rjf: convert to handle & return
OS_Handle handle = {(U64)w};
return handle;
}
internal void
os_window_close(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_first_paint(OS_Handle window_handle)
os_window_first_paint(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
OS_LNX_Window *w = (OS_LNX_Window *)handle.u64[0];
XMapWindow(os_lnx_gfx_state->display, w->window);
}
internal void
os_window_equip_repaint(OS_Handle handle, OS_WindowRepaintFunctionType *repaint, void *user_data)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_focus(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal B32
os_window_is_focused(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return 0;}
return 0;
}
internal B32
os_window_is_fullscreen(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return 0;}
return 0;
}
internal void
os_window_set_fullscreen(OS_Handle handle, B32 fullscreen)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal B32
os_window_is_maximized(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return 0;}
return 0;
}
internal void
os_window_set_maximized(OS_Handle handle, B32 maximized)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_minimize(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_bring_to_front(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_set_monitor(OS_Handle window_handle, OS_Handle monitor)
os_window_set_monitor(OS_Handle handle, OS_Handle monitor)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_clear_custom_border_data(OS_Handle handle)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_push_custom_title_bar(OS_Handle handle, F32 thickness)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_push_custom_edges(OS_Handle handle, F32 thickness)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal void
os_window_push_custom_title_bar_client_area(OS_Handle handle, Rng2F32 rect)
{
if(os_handle_match(handle, os_handle_zero())) {return;}
}
internal Rng2F32
os_rect_from_window(OS_Handle handle)
{
return r2f32p(0, 0, 0, 0);
}
internal Rng2F32
os_client_rect_from_window(OS_Handle handle)
{
return r2f32p(0, 0, 0, 0);
}
internal F32
os_dpi_from_window(OS_Handle handle)
{
return 0;
}
////////////////////////////////
@@ -163,31 +253,34 @@ os_dpi_from_window(OS_Handle handle)
internal OS_HandleArray
os_push_monitors_array(Arena *arena)
{
OS_HandleArray result = {0};
return result;
}
internal OS_Handle
os_primary_monitor(void)
{
OS_Handle result = {0};
return result;
}
internal OS_Handle
os_monitor_from_window(OS_Handle window)
{
OS_Handle result = {0};
return result;
}
internal String8
os_name_from_monitor(Arena *arena, OS_Handle monitor)
{
return str8_zero();
}
internal Vec2F32
os_dim_from_monitor(OS_Handle monitor)
{
return v2f32(0, 0);
}
////////////////////////////////
@@ -202,25 +295,169 @@ os_send_wakeup_event(void)
internal OS_EventList
os_get_events(Arena *arena, B32 wait)
{
OS_EventList evts = {0};
for(;XPending(os_lnx_gfx_state->display) > 0 || (wait && evts.count == 0);)
{
XEvent evt = {0};
XNextEvent(os_lnx_gfx_state->display, &evt);
switch(evt.type)
{
default:{}break;
//- rjf: key presses/releases
case KeyPress:
case KeyRelease:
{
// rjf: determine flags
OS_EventFlags flags = 0;
if(evt.xkey.state & ShiftMask) { flags |= OS_EventFlag_Shift; }
if(evt.xkey.state & ControlMask) { flags |= OS_EventFlag_Ctrl; }
if(evt.xkey.state & Mod1Mask) { flags |= OS_EventFlag_Alt; }
// rjf: map keycode -> keysym
U32 keysym = XLookupKeysym(&evt.xkey, 0);
// rjf: map keysym -> OS_Key
OS_Key key = OS_Key_Null;
switch(keysym)
{
default:
{
if(0){}
else if(XK_F1 <= keysym && keysym <= XK_F24) { key = (OS_Key)(OS_Key_F1 + (keysym - XK_F1)); }
else if('0' <= keysym && keysym <= '9') { key = OS_Key_0 + (keysym-'0'); }
}break;
case XK_Escape:{key = OS_Key_Esc;};break;
case '-':{key = OS_Key_Minus;}break;
case '=':{key = OS_Key_Equal;}break;
case '[':{key = OS_Key_LeftBracket;}break;
case ']':{key = OS_Key_RightBracket;}break;
case ';':{key = OS_Key_Semicolon;}break;
case '\'':{key = OS_Key_Quote;}break;
case '.':{key = OS_Key_Period;}break;
case ',':{key = OS_Key_Comma;}break;
case '/':{key = OS_Key_Slash;}break;
case '\\':{key = OS_Key_BackSlash;}break;
case 'a':case 'A':{key = OS_Key_A;}break;
case 'b':case 'B':{key = OS_Key_B;}break;
case 'c':case 'C':{key = OS_Key_C;}break;
case 'd':case 'D':{key = OS_Key_D;}break;
case 'e':case 'E':{key = OS_Key_E;}break;
case 'f':case 'F':{key = OS_Key_F;}break;
case 'g':case 'G':{key = OS_Key_G;}break;
case 'h':case 'H':{key = OS_Key_H;}break;
case 'i':case 'I':{key = OS_Key_I;}break;
case 'j':case 'J':{key = OS_Key_J;}break;
case 'k':case 'K':{key = OS_Key_K;}break;
case 'l':case 'L':{key = OS_Key_L;}break;
case 'm':case 'M':{key = OS_Key_M;}break;
case 'n':case 'N':{key = OS_Key_N;}break;
case 'o':case 'O':{key = OS_Key_O;}break;
case 'p':case 'P':{key = OS_Key_P;}break;
case 'q':case 'Q':{key = OS_Key_Q;}break;
case 'r':case 'R':{key = OS_Key_R;}break;
case 's':case 'S':{key = OS_Key_S;}break;
case 't':case 'T':{key = OS_Key_T;}break;
case 'u':case 'U':{key = OS_Key_U;}break;
case 'v':case 'V':{key = OS_Key_V;}break;
case 'w':case 'W':{key = OS_Key_W;}break;
case 'x':case 'X':{key = OS_Key_X;}break;
case 'y':case 'Y':{key = OS_Key_Y;}break;
case 'z':case 'Z':{key = OS_Key_Z;}break;
case ' ':{key = OS_Key_Space;}break;
}
// rjf: push event
OS_LNX_Window *window = os_lnx_window_from_x11window(evt.xclient.window);
OS_Event *e = os_event_list_push_new(arena, &evts, evt.type == KeyPress ? OS_EventKind_Press : OS_EventKind_Release);
e->window.u64[0] = (U64)window;
e->flags = flags;
e->key = key;
}break;
//- rjf: mouse button presses/releases
case ButtonPress:
case ButtonRelease:
{
// rjf: determine flags
OS_EventFlags flags = 0;
if(evt.xbutton.state & ShiftMask) { flags |= OS_EventFlag_Shift; }
if(evt.xbutton.state & ControlMask) { flags |= OS_EventFlag_Ctrl; }
if(evt.xbutton.state & Mod1Mask) { flags |= OS_EventFlag_Alt; }
// rjf: map button -> OS_Key
OS_Key key = OS_Key_Null;
switch(evt.xbutton.button)
{
default:{}break;
case Button1:{key = OS_Key_LeftMouseButton;}break;
case Button2:{key = OS_Key_MiddleMouseButton;}break;
case Button3:{key = OS_Key_RightMouseButton;}break;
}
// rjf: push event
OS_LNX_Window *window = os_lnx_window_from_x11window(evt.xclient.window);
OS_Event *e = os_event_list_push_new(arena, &evts, evt.type == ButtonPress ? OS_EventKind_Press : OS_EventKind_Release);
e->window.u64[0] = (U64)window;
e->flags = flags;
e->key = key;
}break;
//- rjf: mouse motion
case MotionNotify:
{
OS_LNX_Window *window = os_lnx_window_from_x11window(evt.xclient.window);
OS_Event *e = os_event_list_push_new(arena, &evts, OS_EventKind_MouseMove);
e->window.u64[0] = (U64)window;
e->pos.x = (F32)evt.xmotion.x;
e->pos.y = (F32)evt.xmotion.y;
}break;
//- rjf: window focus/unfocus
case FocusIn:
case FocusOut:
{
}break;
//- rjf: client messages
case ClientMessage:
{
if((Atom)evt.xclient.data.l[0] == os_lnx_gfx_state->wm_delete_window_atom)
{
OS_LNX_Window *window = os_lnx_window_from_x11window(evt.xclient.window);
OS_Event *e = os_event_list_push_new(arena, &evts, OS_EventKind_WindowClose);
e->window.u64[0] = (U64)window;
}
else if((Atom)evt.xclient.data.l[0] == os_lnx_gfx_state->wm_sync_request_atom)
{
OS_LNX_Window *window = os_lnx_window_from_x11window(evt.xclient.window);
if(window != 0)
{
window->counter_value = 0;
window->counter_value |= evt.xclient.data.l[2];
window->counter_value |= (evt.xclient.data.l[3] << 32);
XSyncValue value;
XSyncIntToValue(&value, window->counter_value);
XSyncSetCounter(os_lnx_gfx_state->display, window->counter_xid, value);
}
}
}break;
}
}
return evts;
}
internal OS_EventFlags
os_get_event_flags(void)
{
}
internal B32
os_key_is_down(OS_Key key)
{
return 0;
}
internal Vec2F32
os_mouse_from_window(OS_Handle handle)
{
return v2f32(0, 0);
}
////////////////////////////////
+42
View File
@@ -10,5 +10,47 @@
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/extensions/sync.h>
#include <X11/keysym.h>
#include <X11/keysymdef.h>
////////////////////////////////
//~ rjf: Window State
typedef struct OS_LNX_Window OS_LNX_Window;
struct OS_LNX_Window
{
OS_LNX_Window *next;
OS_LNX_Window *prev;
Window window;
XID counter_xid;
U64 counter_value;
};
////////////////////////////////
//~ rjf: State Bundle
typedef struct OS_LNX_GfxState OS_LNX_GfxState;
struct OS_LNX_GfxState
{
Arena *arena;
Display *display;
OS_LNX_Window *first_window;
OS_LNX_Window *last_window;
OS_LNX_Window *free_window;
Atom wm_delete_window_atom;
Atom wm_sync_request_atom;
Atom wm_sync_request_counter_atom;
OS_GfxInfo gfx_info;
};
////////////////////////////////
//~ rjf: Globals
global OS_LNX_GfxState *os_lnx_gfx_state = 0;
////////////////////////////////
//~ rjf: Helpers
internal OS_LNX_Window *os_lnx_window_from_x11window(Window window);
#endif // OS_GFX_LINUX_H