7d5eb42400
Kernel driver sends raw scancodes, compositor or terminal handle the rest. Support for F* keys will be added soon, in the mean time userspace applications can know about the status of modifiers (control, shift, alt, and super). Compositor actions have been changed to Alt+Left Click for move and Alt+Middle Click for resize. I'll work on adding more mouse events once I get them to be faster (they're annoyingly slow at the moment... I want more accuracy and less latency).
183 lines
5.7 KiB
C
183 lines
5.7 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
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*
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* Compositing and Window Management Library
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*/
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#ifndef COMPOSITING_H
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#define COMPOSITING_H
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#include <stdint.h>
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#include "list.h"
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#include "graphics.h"
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#include "kbd.h"
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/* Connection */
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typedef struct {
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/* Control flow structures */
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volatile uint8_t lock; /* Spinlock byte */
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/* LOCK REQUIRED REGION */
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volatile uint8_t client_done; /* Client has finished work */
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volatile uint8_t server_done; /* Server has finished work */
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/* The actual data passed back and forth */
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pid_t client_pid; /* Actively communicating client process */
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uintptr_t event_pipe; /* Client event pipe (ie, mouse, keyboard) */
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uintptr_t command_pipe; /* Client command pipe (ie, resize) */
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/* END LOCK REQUIRED REGION */
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/* Data about the system */
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pid_t server_pid; /* The wins -- for signals */
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uint16_t server_width; /* Screen resolution, width */
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uint16_t server_height; /* Screen resolution, height */
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uint8_t server_depth; /* Native screen depth (in bits) */
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uint32_t magic;
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} wins_server_global_t;
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/* Commands and Events */
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typedef struct {
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uint32_t magic;
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uint8_t command_type; /* Command or event specifier */
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size_t packet_size; /* Size of the *remaining* packet data */
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} wins_packet_t;
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#define WINS_PACKET(p) ((char *)((uintptr_t)p + sizeof(wins_packet_t)))
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#define WINS_SERVER_IDENTIFIER "sys.compositor"
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#define WINS_MAGIC 0xDECADE99
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/* Commands */
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#define WC_NEWWINDOW 0x00 /* New Window */
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#define WC_RESIZE 0x01 /* Resize and move an existing window */
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#define WC_DESTROY 0x02 /* Destroy an existing window */
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#define WC_DAMAGE 0x03 /* Damage window (redraw region) */
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#define WC_REDRAW 0x04 /* Damage window (redraw region) */
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#define WC_REORDER 0x05 /* Set the Z-index for a window (request) */
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#define WC_SET_ALPHA 0x06 /* Enable RGBA for compositing */
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/* Events */
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#define WE_KEYDOWN 0x10 /* A key has been pressed down */
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#define WE_KEYUP 0x11 /* RESERVED: Key up [UNUSED] */
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#define WE_MOUSEMOVE 0x20 /* The mouse has moved (to the given coordinates) */
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#define WE_MOUSEENTER 0x21 /* The mouse has entered your window (at the given coordinates) */
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#define WE_MOUSELEAVE 0x22 /* The mouse has left your window (at the given coordinates) */
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#define WE_MOUSECLICK 0x23 /* A mouse button has been pressed that was not previously pressed */
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#define WE_MOUSEUP 0x24 /* A mouse button has been released */
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#define WE_NEWWINDOW 0x30 /* A new window has been created */
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#define WE_RESIZED 0x31 /* Your window has been resized or moved */
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#define WE_DESTROYED 0x32 /* Window has been removed */
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#define WE_REDRAWN 0x34
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#define WE_GROUP_MASK 0xF0
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#define WE_KEY_EVT 0x10 /* Some sort of keyboard event */
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#define WE_MOUSE_EVT 0x20 /* Some sort of mouse event */
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#define WE_WINDOW_EVT 0x30 /* Some sort of window event */
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typedef uint16_t wid_t;
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typedef struct {
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wid_t wid; /* or none for new window */
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int16_t left; /* X coordinate */
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int16_t top; /* Y coordinate */
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uint16_t width; /* Width of window or region */
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uint16_t height; /* Height of window or region */
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uint8_t command; /* The command (duplicated) */
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} w_window_t;
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typedef struct {
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wid_t wid;
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uint16_t key;
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uint8_t ret;
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key_event_t event;
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uint8_t command;
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} w_keyboard_t;
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typedef struct {
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wid_t wid;
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int32_t old_x;
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int32_t old_y;
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int32_t new_x;
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int32_t new_y;
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uint8_t buttons;
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uint8_t command;
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} w_mouse_t;
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#define MOUSE_BUTTON_LEFT 0x01
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#define MOUSE_BUTTON_RIGHT 0x02
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#define MOUSE_BUTTON_MIDDLE 0x04
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#define SHMKEY(buf,sz,win) snprintf(buf, sz, "%s.%d.%d.%d", WINS_SERVER_IDENTIFIER, win->owner->pid, win->wid, win->bufid);
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#define SHMKEY_(buf,sz,win) snprintf(buf, sz, "%s.%d.%d.%d", WINS_SERVER_IDENTIFIER, getpid(), win->wid, win->bufid);
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/* Windows */
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typedef struct process_windows process_windows_t;
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typedef struct {
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wid_t wid; /* Window identifier */
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process_windows_t * owner; /* Owning process (back ptr) */
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uint16_t width; /* Buffer width in pixels */
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uint16_t height; /* Buffer height in pixels */
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/* UNUSED IN CLIENT */
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int32_t x; /* X coordinate of upper-left corner */
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int32_t y; /* Y coordinate of upper-left corner */
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uint16_t z; /* Stack order */
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uint8_t use_alpha;
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/* END UNUSED IN CLIENT */
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uint8_t * buffer; /* Window buffer */
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uint16_t bufid; /* We occasionally replace the buffer; each is uniquely-indexed */
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} window_t;
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struct process_windows {
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uint32_t pid;
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int event_pipe; /* Pipe to send events through */
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FILE * event_pipe_file;
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int command_pipe; /* Pipe on which we receive commands */
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FILE * command_pipe_file;
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list_t * windows;
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};
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volatile wins_server_global_t * wins_globals;
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/* Client Windowing */
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int setup_windowing ();
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void teardown_windowing ();
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window_t * window_create (int16_t left, int16_t top, uint16_t width, uint16_t height);
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void window_resize (window_t * window, int16_t left, int16_t top, uint16_t width, uint16_t height);
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void window_redraw (window_t * window, int16_t left, int16_t top, uint16_t width, uint16_t height);
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void window_redraw_full (window_t * window);
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void window_redraw_wait (window_t * window);
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void window_destroy (window_t * window);
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void window_reorder (window_t * window, uint16_t new_zed);
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void window_enable_alpha (window_t * window);
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void window_disable_alpha (window_t * window);
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w_keyboard_t * poll_keyboard();
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w_mouse_t * poll_mouse();
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#define TO_WINDOW_OFFSET(x,y) (((x) - window->x) + ((y) - window->y) * window->width)
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#define DIRECT_OFFSET(x,y) ((x) + (y) * window->width)
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gfx_context_t * init_graphics_window(window_t * window);
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gfx_context_t * init_graphics_window_double_buffer(window_t * window);
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void reinit_graphics_window(gfx_context_t * out, window_t * window);
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void win_use_threaded_handler();
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void (*mouse_action_callback)(w_mouse_t *);
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void (*resize_window_callback)(window_t *);
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#endif
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