1#define _POSIX_C_SOURCE 199309L
  2
  3#include <stdlib.h>
  4#include <time.h>
  5
  6#include "util.h"
  7#include "platform/platform.h"
  8
  9static MGContext* platform_ctx;
 10static i32        mouse_dx;
 11static i32        mouse_dy;
 12
 13void platform_get_drawable_size(MGContext* ctx, i32* width, i32* height)
 14{
 15	*width = (i32)ctx->win->width;
 16	*height = (i32)ctx->win->height;
 17}
 18
 19void platform_get_mouse_state(i32* x, i32* y)
 20{
 21	*x = mouse_dx;
 22	*y = mouse_dy;
 23	mouse_dx = 0;
 24	mouse_dy = 0;
 25}
 26
 27u64 platform_get_ticks(void)
 28{
 29	return maus_get_time_ns() / 1000000;
 30}
 31
 32void platform_init(MGContext* ctx)
 33{
 34	int i;
 35
 36	for (i = 0; i < MG_KEYS_DOWN_MAX; i++)
 37		ctx->keys[i] = MGK_UNKNOWN;
 38}
 39
 40i32 platform_key_down(MGContext* ctx, MGKey key)
 41{
 42	if (!ctx || !ctx->win || key == MGK_UNKNOWN)
 43		return 0;
 44	if (key < 0 || key >= MAUS_KEY_LAST)
 45		return 0;
 46
 47	return ctx->win->key_syms[key] != 0;
 48}
 49
 50i32 platform_poll(MGContext* ctx)
 51{
 52	MausEvent ev;
 53
 54	while (maus_event_poll(ctx->win, &ev)) {
 55		switch (ev.type) {
 56		case MAUS_EV_CLOSE:
 57			return 0;
 58		case MAUS_EV_MOUSE_MOTION:
 59			mouse_dx += ev.mouse.motion.dx;
 60			mouse_dy += ev.mouse.motion.dy;
 61			break;
 62		case MAUS_EV_RESIZE:
 63			if (ev.resize.width == 0 || ev.resize.height == 0)
 64				break;
 65			if (ctx->win->width == ev.resize.width && ctx->win->height == ev.resize.height)
 66				break;
 67			ctx->width = (i32)ev.resize.width;
 68			ctx->height = (i32)ev.resize.height;
 69			if (!maus_resize(ctx->win, ev.resize.width, ev.resize.height))
 70				mg_die(MG_EC_MAUS_RESIZE, "Failed to resize maus framebuffer");
 71			break;
 72		default:
 73			break;
 74		}
 75	}
 76
 77	return 1;
 78}
 79
 80void platform_present(MGContext* ctx)
 81{
 82	maus_present(ctx->win);
 83}
 84
 85void platform_set_mouse_relative(i8 enabled)
 86{
 87	if (!platform_ctx || !platform_ctx->win)
 88		return;
 89
 90	if (enabled) {
 91		maus_cur_set_mode(platform_ctx->win, MAUS_CURSOR_STATE_HIDDEN);
 92		maus_cur_set_mode(platform_ctx->win, MAUS_CURSOR_STATE_RELATIVE);
 93	}
 94	else {
 95		maus_cur_set_mode(platform_ctx->win, MAUS_CURSOR_STATE_ABSOLUTE);
 96		maus_cur_set_mode(platform_ctx->win, MAUS_CURSOR_STATE_VISIBLE);
 97	}
 98}
 99
100void platform_shutdown(MGContext* ctx)
101{
102	if (!ctx || !ctx->win)
103		return;
104
105	maus_close(ctx->win);
106	ctx->win = NULL;
107	platform_ctx = NULL;
108}
109
110void platform_window_create(MGContext* ctx)
111{
112	platform_ctx = ctx;
113	ctx->win = maus_init(ctx->title, ctx->x, ctx->y, ctx->width, ctx->height);
114	if (!ctx->win)
115		mg_die(MG_EC_MAUS_INIT, "Failed to initialise maus");
116
117	if (!maus_create_window(ctx->win))
118		mg_die(MG_EC_MAUS_CREATE_WIN, "Failed to create maus window");
119}
120
121void platform_wait(u32 ms)
122{
123	maus_sleep(ms);
124}