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libcaca
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* Added demo0.c, which is basically the old libcaca-0.9 demo.c file, as a 

test for the <caca0.h> emulation layer.
tags/v0.99.beta14
Sam Hocevar sam 18 jaren geleden
bovenliggende
7e587a46b9
commit
1d1d643c67
2 gewijzigde bestanden met toevoegingen van 585 en 1 verwijderingen
Zij-aan-zij weergave
Diff opties
Statistieken weergeven Download Patch-bestand Download Diff-bestand
  1. +4
    -1
      test/Makefile.am
  2. +581
    -0
      test/demo0.c

+ 4
- 1
test/Makefile.am Bestand weergeven

@@ -2,7 +2,7 @@

AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/cucul -I$(top_srcdir)/caca -DDATADIR=\"$(pkgdatadir)\"

noinst_PROGRAMS = colors demo dithering event export font frames gamma hsv input matrix spritedit font2tga text transform truecolor unicode import
noinst_PROGRAMS = colors demo demo0 dithering event export font frames gamma hsv input matrix spritedit font2tga text transform truecolor unicode import

colors_SOURCES = colors.c
colors_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@
@@ -10,6 +10,9 @@ colors_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@
demo_SOURCES = demo.c
demo_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@ @MATH_LIBS@

demo0_SOURCES = demo0.c
demo0_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@ @MATH_LIBS@

dithering_SOURCES = dithering.c
dithering_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@



+ 581
- 0
test/demo0.c Bestand weergeven

@@ -0,0 +1,581 @@
/*
* demo demo for libcaca version 0.9
* Copyright (c) 2003 Sam Hocevar <sam@zoy.org>
* All Rights Reserved
*
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*/

#include "config.h"

#include <math.h>
#include <string.h>
#include <stdio.h>

#include "caca0.h"

static void display_menu(void);

static void demo_all(void);

static void demo_color(void);
static void demo_dots(void);
static void demo_lines(void);
static void demo_boxes(void);
static void demo_ellipses(void);
static void demo_triangles(void);
#if 0
static void demo_sprites(void);
#endif
static void demo_render(void);

int bounds = 0;
int outline = 0;
int dithering = 0;
struct caca_sprite *sprite = NULL;

int main(int argc, char **argv)
{
void (*demo)(void) = NULL;
int quit = 0;

if(caca_init())
return 1;

caca_set_delay(40000);

/* Initialize data */
#if 0
sprite = caca_load_sprite(DATADIR "/caca.txt");
if(!sprite)
sprite = caca_load_sprite("caca.txt");
if(!sprite)
sprite = caca_load_sprite("examples/caca.txt");
#endif

/* Main menu */
display_menu();
caca_refresh();

/* Go ! */
while(!quit)
{
int menu = 0, mouse = 0, xmouse = 0, ymouse = 0;
int event;

while((event = caca_get_event(CACA_EVENT_ANY)))
{
if(demo && (event & CACA_EVENT_KEY_PRESS))
{
menu = 1;
demo = NULL;
}
else if(event & CACA_EVENT_KEY_PRESS)
{
switch(event & 0xffff)
{
case 'q':
case 'Q':
demo = NULL;
quit = 1;
break;
case 'o':
case 'O':
outline = (outline + 1) % 3;
display_menu();
break;
case 'b':
case 'B':
bounds = (bounds + 1) % 2;
display_menu();
break;
case 'd':
case 'D':
dithering = (dithering + 1) % 5;
caca_set_dithering(dithering);
display_menu();
break;
case 'c':
demo = demo_color;
break;
case 'f':
case 'F':
demo = demo_all;
break;
case '1':
demo = demo_dots;
break;
case '2':
demo = demo_lines;
break;
case '3':
demo = demo_boxes;
break;
case '4':
demo = demo_triangles;
break;
case '5':
demo = demo_ellipses;
break;
#if 0
case 's':
case 'S':
if(sprite)
demo = demo_sprites;
break;
#endif
case 'r':
case 'R':
demo = demo_render;
break;
}

if(demo)
caca_clear();
}
else if(event & CACA_EVENT_MOUSE_MOTION)
{
mouse = 1;
xmouse = (event & 0xfff000) >> 12;
ymouse = event & 0xfff;
}
}

if(menu || (mouse && !demo))
{
display_menu();
if(mouse && !demo)
{
caca_set_color(CACA_COLOR_RED, CACA_COLOR_BLACK);
caca_putstr(xmouse, ymouse, "|\\");
}
caca_refresh();
mouse = menu = 0;
}

if(demo)
{
demo();

caca_set_color(CACA_COLOR_LIGHTGRAY, CACA_COLOR_BLACK);
caca_draw_thin_box(1, 1, caca_get_width() - 2, caca_get_height() - 2);
caca_printf(4, 1, "[%i.%i fps]----",
1000000 / caca_get_rendertime(),
(10000000 / caca_get_rendertime()) % 10);
caca_refresh();
}
}

/* Clean up */
#if 0
caca_free_sprite(sprite);
#endif
caca_end();

return 0;
}

static void display_menu(void)
{
int xo = caca_get_width() - 2;
int yo = caca_get_height() - 2;

caca_clear();
caca_set_color(CACA_COLOR_LIGHTGRAY, CACA_COLOR_BLACK);
caca_draw_thin_box(1, 1, xo, yo);

caca_putstr((xo - strlen("libcaca demo")) / 2, 3, "libcaca demo");
caca_putstr((xo - strlen("==============")) / 2, 4, "==============");

caca_putstr(4, 6, "demos:");
caca_putstr(4, 7, "'f': full");
caca_putstr(4, 8, "'1': dots");
caca_putstr(4, 9, "'2': lines");
caca_putstr(4, 10, "'3': boxes");
caca_putstr(4, 11, "'4': triangles");
caca_putstr(4, 12, "'5': ellipses");
caca_putstr(4, 13, "'c': colour");
caca_putstr(4, 14, "'r': render");
if(sprite)
caca_putstr(4, 15, "'s': sprites");

caca_putstr(4, 16, "settings:");
caca_printf(4, 17, "'o': outline: %s",
outline == 0 ? "none" : outline == 1 ? "solid" : "thin");
caca_printf(4, 18, "'b': drawing boundaries: %s",
bounds == 0 ? "screen" : "infinite");
caca_printf(4, 19, "'d': dithering (%s)",
caca_get_dithering_name(dithering));

caca_putstr(4, yo - 2, "'q': quit");
}

static void demo_all(void)
{
static int i = 0;

int j, xo, yo, xa, ya, xb, yb, xc, yc;

i++;

caca_clear();

/* Draw the sun */
caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);
xo = caca_get_width() / 4;
yo = caca_get_height() / 4 + 5 * sin(0.03*i);

for(j = 0; j < 16; j++)
{
xa = xo - (30 + sin(0.03*i) * 8) * sin(0.03*i + M_PI*j/8);
ya = yo + (15 + sin(0.03*i) * 4) * cos(0.03*i + M_PI*j/8);
caca_draw_thin_line(xo, yo, xa, ya);
}

j = 15 + sin(0.03*i) * 8;
caca_set_color(CACA_COLOR_WHITE, CACA_COLOR_BLACK);
caca_fill_ellipse(xo, yo, j, j / 2, '#');
caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);
caca_draw_ellipse(xo, yo, j, j / 2, '#');

/* Draw the pyramid */
xo = caca_get_width() * 5 / 8;
yo = 2;

xa = caca_get_width() / 8 + sin(0.03*i) * 5;
ya = caca_get_height() / 2 + cos(0.03*i) * 5;

xb = caca_get_width() - 10 - cos(0.02*i) * 10;
yb = caca_get_height() * 3 / 4 - 5 + sin(0.02*i) * 5;

xc = caca_get_width() / 4 - sin(0.02*i) * 5;
yc = caca_get_height() * 3 / 4 + cos(0.02*i) * 5;

caca_set_color(CACA_COLOR_GREEN, CACA_COLOR_BLACK);
caca_fill_triangle(xo, yo, xb, yb, xa, ya, '%');
caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);
caca_draw_thin_triangle(xo, yo, xb, yb, xa, ya);

caca_set_color(CACA_COLOR_RED, CACA_COLOR_BLACK);
caca_fill_triangle(xa, ya, xb, yb, xc, yc, '#');
caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);
caca_draw_thin_triangle(xa, ya, xb, yb, xc, yc);

caca_set_color(CACA_COLOR_BLUE, CACA_COLOR_BLACK);
caca_fill_triangle(xo, yo, xb, yb, xc, yc, '%');
caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);
caca_draw_thin_triangle(xo, yo, xb, yb, xc, yc);

/* Draw a background triangle */
xa = 2;
ya = 2;

xb = caca_get_width() - 3;
yb = caca_get_height() / 2;

xc = caca_get_width() / 3;
yc = caca_get_height() - 3;

caca_set_color(CACA_COLOR_CYAN, CACA_COLOR_BLACK);
caca_draw_thin_triangle(xa, ya, xb, yb, xc, yc);

xo = caca_get_width() / 2 + cos(0.027*i) * caca_get_width() / 3;
yo = caca_get_height() / 2 - sin(0.027*i) * caca_get_height() / 2;

caca_draw_thin_line(xa, ya, xo, yo);
caca_draw_thin_line(xb, yb, xo, yo);
caca_draw_thin_line(xc, yc, xo, yo);

/* Draw a sprite on the pyramid */
#if 0
caca_draw_sprite(xo, yo, sprite, 0);
#endif

/* Draw a trail behind the foreground sprite */
for(j = i - 60; j < i; j++)
{
int delta = caca_rand(-5, 5);
caca_set_color(caca_rand(0, 15), caca_rand(0, 15));
caca_putchar(caca_get_width() / 2
+ cos(0.02*j) * (delta + caca_get_width() / 4),
caca_get_height() / 2
+ sin(0.02*j) * (delta + caca_get_height() / 3),
'#');
}

/* Draw foreground sprite */
#if 0
caca_draw_sprite(caca_get_width() / 2 + cos(0.02*i) * caca_get_width() / 4,
caca_get_height() / 2 + sin(0.02*i) * caca_get_height() / 3,
sprite, 0);
#endif
}

static void demo_dots(void)
{
int xmax = caca_get_width() - 1;
int ymax = caca_get_height() - 1;
int i;
static char chars[10] =
{
'+', '-', '*', '#', 'X', '@', '%', '$', 'M', 'W'
};

for(i = 1000; i--;)
{
/* Putpixel */
caca_set_color(caca_rand(0, 15), caca_rand(0, 15));
caca_putchar(caca_rand(0, xmax), caca_rand(0, ymax),
chars[caca_rand(0, 9)]);
}
}

static void demo_color(void)
{
int i, j;
char buf[BUFSIZ];

caca_clear();
for(i = 0; i < 16; i++)
{
sprintf(buf, "'%c': %i (%s)", 'a' + i, i, caca_get_color_name(i));
caca_set_color(CACA_COLOR_LIGHTGRAY, CACA_COLOR_BLACK);
caca_putstr(4, i + (i >= 8 ? 4 : 3), buf);
for(j = 0; j < 16; j++)
{
caca_set_color(i, j);
caca_putstr((j >= 8 ? 41 : 40) + j * 2, i + (i >= 8 ? 4 : 3), "# ");
}
}
}

static void demo_lines(void)
{
int w = caca_get_width();
int h = caca_get_height();
int xa, ya, xb, yb;

if(bounds)
{
xa = caca_rand(- w, 2 * w); ya = caca_rand(- h, 2 * h);
xb = caca_rand(- w, 2 * w); yb = caca_rand(- h, 2 * h);
}
else
{
xa = caca_rand(0, w - 1); ya = caca_rand(0, h - 1);
xb = caca_rand(0, w - 1); yb = caca_rand(0, h - 1);
}

caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);
if(outline > 1)
caca_draw_thin_line(xa, ya, xb, yb);
else
caca_draw_line(xa, ya, xb, yb, '#');
}

static void demo_boxes(void)
{
int w = caca_get_width();
int h = caca_get_height();
int xa, ya, xb, yb;

if(bounds)
{
xa = caca_rand(- w, 2 * w); ya = caca_rand(- h, 2 * h);
xb = caca_rand(- w, 2 * w); yb = caca_rand(- h, 2 * h);
}
else
{
xa = caca_rand(0, w - 1); ya = caca_rand(0, h - 1);
xb = caca_rand(0, w - 1); yb = caca_rand(0, h - 1);
}

caca_set_color(caca_rand(0, 15), caca_rand(0, 15));
caca_fill_box(xa, ya, xb, yb, '#');

caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);
if(outline == 2)
caca_draw_thin_box(xa, ya, xb, yb);
else if(outline == 1)
caca_draw_box(xa, ya, xb, yb, '#');
}

static void demo_ellipses(void)
{
int w = caca_get_width();
int h = caca_get_height();
int x, y, a, b;

if(bounds)
{
x = caca_rand(- w, 2 * w); y = caca_rand(- h, 2 * h);
a = caca_rand(0, w); b = caca_rand(0, h);
}
else
{
do
{
x = caca_rand(0, w); y = caca_rand(0, h);
a = caca_rand(0, w); b = caca_rand(0, h);

} while(x - a < 0 || x + a >= w || y - b < 0 || y + b >= h);
}

caca_set_color(caca_rand(0, 15), caca_rand(0, 15));
caca_fill_ellipse(x, y, a, b, '#');

caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);
if(outline == 2)
caca_draw_thin_ellipse(x, y, a, b);
else if(outline == 1)
caca_draw_ellipse(x, y, a, b, '#');
}

static void demo_triangles(void)
{
int w = caca_get_width();
int h = caca_get_height();
int xa, ya, xb, yb, xc, yc;

if(bounds)
{
xa = caca_rand(- w, 2 * w); ya = caca_rand(- h, 2 * h);
xb = caca_rand(- w, 2 * w); yb = caca_rand(- h, 2 * h);
xc = caca_rand(- w, 2 * w); yc = caca_rand(- h, 2 * h);
}
else
{

xa = caca_rand(0, w - 1); ya = caca_rand(0, h - 1);
xb = caca_rand(0, w - 1); yb = caca_rand(0, h - 1);
xc = caca_rand(0, w - 1); yc = caca_rand(0, h - 1);
}

caca_set_color(caca_rand(0, 15), caca_rand(0, 15));
caca_fill_triangle(xa, ya, xb, yb, xc, yc, '#');

caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);
if(outline == 2)
caca_draw_thin_triangle(xa, ya, xb, yb, xc, yc);
else if(outline == 1)
caca_draw_triangle(xa, ya, xb, yb, xc, yc, '#');
}

#if 0
static void demo_sprites(void)
{
caca_draw_sprite(caca_rand(0, caca_get_width() - 1),
caca_rand(0, caca_get_height() - 1), sprite, 0);
}
#endif

#if 0
static void demo_render(void)
{
struct caca_bitmap *bitmap;
//short buffer[256*256];
//short *dest = buffer;
int buffer[256*256];
int *dest = buffer;
int x, y, z;
static int i = 0;

i = (i + 1) % 512;
z = i < 256 ? i : 511 - i;

for(x = 0; x < 256; x++)
for(y = 0; y < 256; y++)
{
//*dest++ = ((x >> 3) << 11) | ((y >> 2) << 5) | ((z >> 3));
*dest++ = (x << 16) | (y << 8) | (z);
}

//bitmap = caca_create_bitmap(16, 256, 256, 2 * 256, 0xf800, 0x07e0, 0x001f, 0x0000);
bitmap = caca_create_bitmap(32, 256, 256, 4 * 256, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
caca_draw_bitmap(0, 0, caca_get_width() - 1, caca_get_height() - 1,
bitmap, buffer);
caca_free_bitmap(bitmap);
}
#endif

static void draw_circle(int *buffer, int xo, int yo, int r, int mask, int val);

static void demo_render(void)
{
struct caca_bitmap *bitmap;
int buffer[256*256];
int *dest;
int x, y, z, xo, yo;
static int i = 0;

i++;

dest = buffer;
for(x = 0; x < 256; x++)
for(y = 0; y < 256; y++)
{
*dest++ = 0xff000000;
}

/* red */
xo = 128 + 48 * sin(0.02 * i);
yo = 128 + 48 * cos(0.03 * i);
for(z = 0; z < 240; z++)
draw_circle(buffer, xo, yo, z, 0x00ff0000, 200 << 16);

/* green */
xo = 128 + 48 * sin(2 + 0.06 * i);
yo = 128 + 48 * cos(2 + 0.05 * i);
for(z = 0; z < 240; z++)
draw_circle(buffer, xo, yo, z, 0x0000ff00, 200 << 8);

/* blue */
xo = 128 + 48 * sin(1 + 0.04 * i);
yo = 128 + 48 * cos(1 + 0.03 * i);
for(z = 0; z < 240; z++)
draw_circle(buffer, xo, yo, z, 0x000000ff, 200);

bitmap = caca_create_bitmap(32, 256, 256, 4 * 256, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
caca_draw_bitmap(0, 0, caca_get_width() - 1, caca_get_height() - 1,
bitmap, (char *)buffer);
caca_free_bitmap(bitmap);
}

static void draw_circle(int *buffer, int x, int y, int r, int mask, int val)
{
int t, dx, dy;

#define POINT(X,Y) \
buffer[(X) + 256 * (Y)] = 0xff000000 | (buffer[(X) + 256 * (Y)] & ~mask) | val;

for(t = 0, dx = 0, dy = r; dx <= dy; dx++)
{
POINT(x - dx / 3, y - dy / 3);
POINT(x + dx / 3, y - dy / 3);
POINT(x - dx / 3, y + dy / 3);
POINT(x + dx / 3, y + dy / 3);

POINT(x - dy / 3, y - dx / 3);
POINT(x + dy / 3, y - dx / 3);
POINT(x - dy / 3, y + dx / 3);
POINT(x + dy / 3, y + dx / 3);

t += t > 0 ? dx - dy-- : dx;
}
}


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