static gboolean idle_state_event_cb (void *dummy)
{
double cur_time;
if (quitting_flag)
return FALSE;
cur_time = xg_timer_elapsed (timer);
if (initialized_flag && !minimized_flag)
{
if (active_flag)
{
//audio_time_cur = cur_time;
if (run_full_speed_flag || ((cur_time - before_update_time) > UPDATE_RATE))
{
repl_tick ();
if (do_idle != SCM_UNSPECIFIED)
scm_call_1 (do_idle, scm_from_double (cur_time));
update_count ++;
before_update_time = cur_time;
after_update_time = xg_timer_elapsed (timer);
if (update_count % 1000 == 0)
{
measured_updates_rate
= 1000.0 / (after_update_time - thousand_updates_time);
thousand_updates_time = after_update_time;
g_debug ("Update Rate: %f", measured_updates_rate);
}
}
}
else
{
//audio_pause ();
// Figure out a way to sleep until the next gtk event comes in
}
/* if (!run_full_speed_flag) */
/* xg_usleep(10); */
}
return TRUE;
}
void loop_initialize ()
{
timer = xg_timer_new();
g_timer_start (timer);
update_count = 0;
draw_count = 0;
before_update_time = xg_timer_elapsed (timer);
after_update_time = before_update_time;
before_draw_time = before_update_time;
after_draw_time = before_update_time;
main_loop = xg_default_main_loop_new ();
idle_event_source_id = g_timeout_add (1, idle_state_event_cb, NULL);
main_screen_tick_id = gtk_widget_add_tick_callback (GTK_WIDGET(main_screen), tick_cb, NULL, NULL);
initialized_flag = TRUE;
}
double
loop_time()
{
return xg_timer_elapsed(timer);
}
cairo_surface_t *
console_render_to_cairo_surface ()
{
uint32_t timer, fast_blink_on, slow_blink_on;
int width, height;
cairo_surface_t *surf;
uint32_t *data;
int stride;
int glyph_bpd, glyph_stride, glyph_width, glyph_height, glyph_xoffset, glyph_yoffset;
uint8_t *glyph_bitmap;
/* Convert time to integer milliseconds */
timer = xg_timer_elapsed (console_timer) * 1000.0;
fast_blink_on = (timer / FAST_BLINK_TIME) % 2;
slow_blink_on = (timer / SLOW_BLINK_TIME) % 2;
width = CONSOLE_COLS;
height = CONSOLE_ROWS;
surf = xcairo_image_surface_create (CAIRO_FORMAT_ARGB32,
width * FIXED_MAXWIDTH,
height * FIXED_MAXHEIGHT);
data = xcairo_image_surface_get_argb32_data (surf);
stride = xcairo_image_surface_get_argb32_stride (surf);
xcairo_surface_flush (surf);
for (int r = 0; r < height; r++)
{
for (int c = 0; c < width; c++)
{
uint32_t cell = cells[r * CONSOLE_COLS + c];
uint16_t rendering = RENDERING (cell);
uint16_t codepoint = CODEPOINT (cell);
uint16_t fg_color_index =
(rendering & COLOR_FG_MASK) >> COLOR_FG_OFFSET;
uint16_t bg_color_index =
(rendering & COLOR_BG_MASK) >> COLOR_BG_OFFSET;
uint16_t intensity_index =
(rendering & INTENSITY_MASK) >> INTENSITY_OFFSET;
uint16_t polarity = rendering & POLARITY_MASK;
uint16_t blink = rendering & BLINK_MASK;
uint16_t underline = rendering & UNDERLINE_MASK;
uint32_t fg_argb =
fg_palette[fg_color_index * NUM_INTENSITIES +
intensity_index];
uint32_t bg_argb = bg_palette[bg_color_index];
// Xor the inverse and blink states to see if we're inverse now.
if ((polarity == POLARITY_NEGATIVE) !=
(((blink == BLINK_FAST) && (fast_blink_on))
|| ((blink == BLINK_SLOW) && (slow_blink_on))))
{
uint32_t temp_argb = fg_argb;
fg_argb = bg_argb;
bg_argb = temp_argb;
}
/* Swap again if we're the cursor and the cursor is visible */
if (r == row && c == col && cursor_visible && slow_blink_on)
{
uint32_t temp_argb = fg_argb;
fg_argb = bg_argb;
bg_argb = temp_argb;
}
glyph_bitmap = get_narrow_glyph (0,
codepoint,
&glyph_bpd, &glyph_stride,
&glyph_width, &glyph_height,
&glyph_xoffset, &glyph_yoffset);
if (glyph_bitmap != NULL)
{
for (int j = 0; j < glyph_height; j++)
{
for (int i = 0; i < glyph_width; i++)
{
uint32_t pixel_argb;
if ((underline == UNDERLINE_SINGLY
|| underline == UNDERLINE_DOUBLY)
&& (j == glyph_height - 1))
pixel_argb = fg_argb;
else if ((underline == UNDERLINE_DOUBLY) &&
(j == glyph_height - 2))
pixel_argb = fg_argb;
else if (glyph_bitmap
&& glyph_bitmap[j] & (1 << (8 - i - 1)))
// FIXME: that '8' should be the number of bits in row type
pixel_argb = fg_argb;
else if (glyph_bitmap
&& (i > 0)
&& ((rendering & INTENSITY_MASK) == INTENSITY_BOLD)
&& (glyph_bitmap[j] & (1 << (8 - i - 2))))
// FIXME: that '8' should be the number of bits in row type
pixel_argb = fg_argb;
else
pixel_argb = bg_argb;
data[(r * FIXED_MAXHEIGHT + j) * stride
+ c * FIXED_MAXWIDTH + i] = pixel_argb;
}
}
}
else {
for (int j = 0; j < FIXED_MAXHEIGHT; j++)
{
for (int i = 0; i < FIXED_MAXWIDTH; i++)
{
uint32_t pixel_argb;
if ((underline == UNDERLINE_SINGLY
|| underline == UNDERLINE_DOUBLY)
&& (j == glyph_height - 1))
pixel_argb = fg_argb;
else if ((underline == UNDERLINE_DOUBLY) &&
(j == glyph_height - 2))
pixel_argb = fg_argb;
else
pixel_argb = bg_argb;
data[(r * FIXED_MAXHEIGHT + j) * stride
+ c * FIXED_MAXWIDTH + i] = pixel_argb;
}
}
}
xcairo_surface_mark_dirty (surf);
}
}
return surf;
}
