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Made font loading thread/fork interruptible via Escape key.

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Improved cartoon effect.
This commit is contained in:
William Kendrick 2005-11-16 07:00:30 +00:00
parent c6728e08bf
commit 5b2debb4c7
1 changed files with 54 additions and 28 deletions
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72
src/tuxpaint.c
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@ -22,7 +22,7 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt)
June 14, 2002 - November 12, 2005
June 14, 2002 - November 15, 2005
*/
@ -73,7 +73,7 @@
#elif defined(PRINTMETHOD_PS)
#define ALTPRINTCOMMAND DEFAULT_ALTPRINTCOMMAND
#else
#error No print method defined!
#error No alt print method defined!
#endif
@ -301,7 +301,8 @@ extern WrapperData macosx;
#ifndef FORKED_FONTS
static SDL_Thread *font_thread;
#endif
static volatile long font_thread_done = 0;
static volatile long font_thread_done = 0, font_thread_aborted = 0;
static volatile long waiting_for_fonts = 0;
static void run_font_scanner(void);
static int font_scanner_pid;
static int font_socket_fd;
@ -2451,6 +2452,7 @@ static void do_wait(int counter)
static void eat_sdl_events(void)
{
SDL_Event event;
while (SDL_PollEvent(&event))
{
if (event.type == SDL_QUIT)
@ -2465,14 +2467,19 @@ static void eat_sdl_events(void)
SDLKey key = event.key.keysym.sym;
SDLMod ctrl = event.key.keysym.mod & KMOD_CTRL;
SDLMod alt = event.key.keysym.mod & KMOD_ALT;
if (/* key==SDLK_ESCAPE || */ (key==SDLK_c && ctrl) || (key==SDLK_F4 && alt))
if ((key==SDLK_c && ctrl) || (key==SDLK_F4 && alt))
{
SDL_Quit();
exit(0);
}
else if (key==SDLK_ESCAPE)
else if (key==SDLK_ESCAPE && waiting_for_fonts)
{
/* FIXME: Abort font loading! */
/* abort font loading! */
printf("Aborting font load!\n");
font_thread_aborted = 1;
//waiting_for_fonts = 0;
}
else
bypass_splash_wait = 1;
@ -3149,10 +3156,11 @@ static void mainloop(void)
update_screen_rect(&r_ttoolopt);
do_setcursor(cursor_watch);
draw_tux_text(TUX_WAIT, gettext("Please wait..."), 1);
waiting_for_fonts = 1;
#ifdef FORKED_FONTS
receive_some_font_info();
#else
while(!font_thread_done)
while(!font_thread_done && !font_thread_aborted)
{
// FIXME: should have a read-depends memory barrier around here
show_progress_bar();
@ -5947,20 +5955,23 @@ static void blit_magic(int x, int y, int button_down)
else if (cur_magic == MAGIC_CARTOON)
{
float hue, sat, val;
float hue1, sat1, val1;
float hue2, sat2, val2;
Uint8 r1, g1, b1, r2, g2, b2, r3, g3, b3, r4, g4, b4;
Uint32 (*getpixel)(SDL_Surface *, int, int) = getpixels[canvas->format->BytesPerPixel];
Uint32 (*getpixel)(SDL_Surface *, int, int) = getpixels[last->format->BytesPerPixel];
SDL_LockSurface(last);
SDL_LockSurface(canvas);
/* First, convert colors to more cartoony ones: */
for (yy = y - 16; yy < y + 16; yy = yy + 2)
for (yy = y - 16; yy < y + 16; yy = yy + 1)
{
for (xx = x - 16; xx < x + 16; xx = xx + 2)
for (xx = x - 16; xx < x + 16; xx = xx + 1)
{
/* Get original color: */
/*
SDL_GetRGB(getpixel_last(last, xx, yy),
last->format, &r1, &g1, &b1);
SDL_GetRGB(getpixel_last(last, xx + 1, yy),
@ -5973,15 +5984,20 @@ static void blit_magic(int x, int y, int button_down)
r = (r1 + r2 + r3 + r4) / 4;
g = (g1 + g2 + g3 + g4) / 4;
b = (b1 + b2 + b3 + b4) / 4;
*/
SDL_GetRGB(getpixel_last(last, xx, yy),
last->format, &r, &g, &b);
rgbtohsv(r, g, b, &hue, &sat, &val);
/*
if (sat <= 0.2)
sat = 0.0;
else if (sat <= 0.7)
sat = 0.5;
else
sat = 1.0;
*/
val = val - 0.5;
val = val * 4;
@ -5995,16 +6011,20 @@ static void blit_magic(int x, int y, int button_down)
val = floor(val * 4) / 4;
hue = floor(hue * 4) / 4;
sat = floor(sat * 4) / 4;
hsvtorgb(hue, sat, val, &r, &g, &b);
putpixel(canvas, xx, yy,
SDL_MapRGB(canvas->format, r, g, b));
/*
putpixel(canvas, xx + 1, yy,
SDL_MapRGB(canvas->format, r, g, b));
putpixel(canvas, xx, yy + 1,
SDL_MapRGB(canvas->format, r, g, b));
putpixel(canvas, xx + 1, yy + 1,
SDL_MapRGB(canvas->format, r, g, b));
*/
}
}
@ -6016,21 +6036,26 @@ static void blit_magic(int x, int y, int button_down)
{
/* Get original color: */
SDL_GetRGB(getpixel(canvas, xx, yy),
canvas->format, &r, &g, &b);
SDL_GetRGB(getpixel(last, xx, yy),
last->format, &r, &g, &b);
SDL_GetRGB(getpixel(canvas, xx + 1, yy),
canvas->format, &r1, &g1, &b1);
SDL_GetRGB(getpixel(last, xx + 1, yy),
last->format, &r1, &g1, &b1);
SDL_GetRGB(getpixel(canvas, xx, yy + 1),
canvas->format, &r2, &g2, &b2);
SDL_GetRGB(getpixel(last, xx + 1, yy + 1),
last->format, &r2, &g2, &b2);
if (abs(((r + g + b) / 3) - (r1 + g1 + b1) / 3) > 32 ||
abs(((r + g + b) / 3) - (r2 + g2 + b2) / 3) > 32 ||
abs(r - r1) > 32 || abs(g - g1) > 32 || abs(b - b1) > 32 ||
abs(r - r2) > 32 || abs(g - g2) > 32 || abs(b - b2) > 32)
#define OUTLINE_THRESH 48
if (abs(((r + g + b) / 3) - (r1 + g1 + b1) / 3) > OUTLINE_THRESH ||
abs(((r + g + b) / 3) - (r2 + g2 + b2) / 3) > OUTLINE_THRESH ||
abs(r - r1) > OUTLINE_THRESH || abs(g - g1) > OUTLINE_THRESH || abs(b - b1) > OUTLINE_THRESH ||
abs(r - r2) > OUTLINE_THRESH || abs(g - g2) > OUTLINE_THRESH || abs(b - b2) > OUTLINE_THRESH)
{
putpixel(canvas, xx, yy,
putpixel(canvas, xx - 1, yy,
SDL_MapRGB(canvas->format, 0, 0, 0));
putpixel(canvas, xx, yy - 1,
SDL_MapRGB(canvas->format, 0, 0, 0));
putpixel(canvas, xx - 1, yy - 1,
SDL_MapRGB(canvas->format, 0, 0, 0));
}
}
@ -7296,6 +7321,7 @@ static int load_user_fonts(void *vp)
groupfonts();
font_thread_done = 1;
waiting_for_fonts = 0;
// FIXME: need a memory barrier here
return 0; // useless, wanted by threading library
}
@ -7540,13 +7566,13 @@ printf("read: fd=%d buf_fill=%u buf_size=%u rc=%ld\n", font_socket_fd, buf_fill,
}
}
buf_fill += rc;
if(!rc)
if(!rc || font_thread_aborted)
break;
}
close(font_socket_fd);
waitpid(font_scanner_pid,&status,0);
if(WIFSIGNALED(status))
if(WIFSIGNALED(status) || font_thread_aborted)
{
printf("child killed by signal %u\n", WTERMSIG(status));
user_font_families = NULL;