int
main ()
{
static const pixman_point_fixed_t inner = { 0x0000, 0x0000 };
static const pixman_point_fixed_t outer = { 0x0000, 0x0000 };
static const pixman_fixed_t r_inner = 0;
static const pixman_fixed_t r_outer = 64 << 16;
static const pixman_gradient_stop_t stops[] = {
{ 0x00000, { 0x6666, 0x6666, 0x6666, 0xffff } },
{ 0x10000, { 0x0000, 0x0000, 0x0000, 0xffff } }
};
static const pixman_transform_t transform = {
{ { 0x0, 0x26ee, 0x0},
{ 0xffffeeef, 0x0, 0x0},
{ 0x0, 0x0, 0x10000}
}
};
static const pixman_color_t z = { 0x0000, 0x0000, 0x0000, 0x0000 };
pixman_image_t *dest, *radial, *zero;
int i;
double before, after;
dest = pixman_image_create_bits (
PIXMAN_x8r8g8b8, 640, 429, NULL, -1);
zero = pixman_image_create_solid_fill (&z);
radial = pixman_image_create_radial_gradient (
&inner, &outer, r_inner, r_outer, stops, ARRAY_LENGTH (stops));
pixman_image_set_transform (radial, &transform);
pixman_image_set_repeat (radial, PIXMAN_REPEAT_PAD);
#define N_COMPOSITE 500
before = gettime();
for (i = 0; i < N_COMPOSITE; ++i)
{
before -= gettime();
pixman_image_composite (
PIXMAN_OP_SRC, zero, NULL, dest,
0, 0, 0, 0, 0, 0, 640, 429);
before += gettime();
pixman_image_composite32 (
PIXMAN_OP_OVER, radial, NULL, dest,
- 150, -158, 0, 0, 0, 0, 640, 361);
}
after = gettime();
write_png (dest, "radial.png");
printf ("Average time to composite: %f\n", (after - before) / N_COMPOSITE);
return 0;
}
static pixman_image_t *
create_radial_gradient_image (PictGradient *gradient)
{
PictRadialGradient *radial = (PictRadialGradient *)gradient;
pixman_point_fixed_t c1;
pixman_point_fixed_t c2;
c1.x = radial->c1.x;
c1.y = radial->c1.y;
c2.x = radial->c2.x;
c2.y = radial->c2.y;
return pixman_image_create_radial_gradient (
&c1, &c2, radial->c1.radius,
radial->c2.radius,
(pixman_gradient_stop_t *)gradient->stops, gradient->nstops);
}
static pixman_image_t *
create_radial (int index)
{
pixman_point_fixed_t p0, p1;
pixman_fixed_t r0, r1;
double x0, x1, radius0, radius1, left, right, center;
x0 = 0;
x1 = 1;
radius0 = radiuses[index];
radius1 = radiuses[NUM_GRADIENTS - index - 1];
/* center the gradient */
left = MIN (x0 - radius0, x1 - radius1);
right = MAX (x0 + radius0, x1 + radius1);
center = (left + right) * 0.5;
x0 -= center;
x1 -= center;
/* scale to make it fit within a 1x1 rect centered in (0,0) */
x0 *= 0.25;
x1 *= 0.25;
radius0 *= 0.25;
radius1 *= 0.25;
p0.x = pixman_double_to_fixed (x0);
p0.y = pixman_double_to_fixed (0);
p1.x = pixman_double_to_fixed (x1);
p1.y = pixman_double_to_fixed (0);
r0 = pixman_double_to_fixed (radius0);
r1 = pixman_double_to_fixed (radius1);
return pixman_image_create_radial_gradient (&p0, &p1,
r0, r1,
stops, NUM_STOPS);
}
int
main (int argc, char **argv)
{
#define WIDTH 400
#define HEIGHT 200
uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
pixman_image_t *src_img;
pixman_image_t *dest_img;
int i, j, k, p;
typedef struct
{
pixman_point_fixed_t p0;
pixman_point_fixed_t p1;
} point_pair_t;
pixman_gradient_stop_t onestop[1] =
{
{ pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
};
pixman_gradient_stop_t subsetstops[2] =
{
{ pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
{ pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
};
pixman_gradient_stop_t stops01[2] =
{
{ pixman_int_to_fixed (0), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
{ pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0x1111 } }
};
point_pair_t point_pairs [] =
{ { { pixman_double_to_fixed (0), 0 },
{ pixman_double_to_fixed (WIDTH / 8.), pixman_int_to_fixed (0) } },
{ { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) },
{ pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) } }
};
pixman_transform_t transformations[] = {
{
{ { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), },
{ pixman_double_to_fixed (0), pixman_double_to_fixed (3), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) }
}
},
{
{ { pixman_double_to_fixed (1), pixman_double_to_fixed (0), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) }
}
},
{
{ { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (2), pixman_double_to_fixed (1.000), pixman_double_to_fixed (1.0) }
}
},
{
{ { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (0) }
}
},
{
{ { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) }
}
},
{
{ { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (3), },
{ pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
{ pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) }
}
},
};
pixman_fixed_t r_inner;
pixman_fixed_t r_outer;
enable_divbyzero_exceptions();
for (i = 0; i < WIDTH * HEIGHT; ++i)
dest[i] = 0x4f00004f; /* pale blue */
dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
WIDTH, HEIGHT,
dest,
WIDTH * 4);
r_inner = 0;
r_outer = pixman_double_to_fixed (50.0);
for (i = 0; i < 3; ++i)
{
pixman_gradient_stop_t *stops;
int num_stops;
if (i == 0)
{
stops = onestop;
num_stops = ARRAY_LENGTH (onestop);
}
else if (i == 1)
{
stops = subsetstops;
num_stops = ARRAY_LENGTH (subsetstops);
}
else
{
stops = stops01;
num_stops = ARRAY_LENGTH (stops01);
}
for (j = 0; j < 3; ++j)
{
for (p = 0; p < ARRAY_LENGTH (point_pairs); ++p)
{
point_pair_t *pair = &(point_pairs[p]);
if (j == 0)
src_img = pixman_image_create_conical_gradient (&(pair->p0), r_inner,
stops, num_stops);
else if (j == 1)
src_img = pixman_image_create_radial_gradient (&(pair->p0), &(pair->p1),
r_inner, r_outer,
stops, num_stops);
else
src_img = pixman_image_create_linear_gradient (&(pair->p0), &(pair->p1),
stops, num_stops);
for (k = 0; k < ARRAY_LENGTH (transformations); ++k)
{
pixman_image_set_transform (src_img, &transformations[k]);
pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NONE);
pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img,
0, 0, 0, 0, 0, 0, 10 * WIDTH, HEIGHT);
}
pixman_image_unref (src_img);
}
}
}
pixman_image_unref (dest_img);
free (dest);
return 0;
}
int
main (int argc, char **argv)
{
pixman_image_t *gradient_img;
pixman_image_t *src_img, *dst_img;
pixman_gradient_stop_t stops[2] =
{
{ pixman_int_to_fixed (0), { 0xffff, 0x0000, 0x0000, 0xffff } },
{ pixman_int_to_fixed (1), { 0xffff, 0xffff, 0x0000, 0xffff } }
};
pixman_point_fixed_t p1 = { 0, 0 };
pixman_point_fixed_t p2 = { pixman_int_to_fixed (WIDTH),
pixman_int_to_fixed (HEIGHT) };
pixman_point_fixed_t c_inner;
pixman_point_fixed_t c_outer;
pixman_fixed_t r_inner;
pixman_fixed_t r_outer;
pixman_region32_t clip_region;
pixman_transform_t trans = {
{ { pixman_double_to_fixed (1.3), pixman_double_to_fixed (0), pixman_double_to_fixed (-0.5), },
{ pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (-0.5), },
{ pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (1.0) }
}
};
src_img = create_solid_bits (0xff0000ff);
c_inner.x = pixman_double_to_fixed (100.0);
c_inner.y = pixman_double_to_fixed (100.0);
c_outer.x = pixman_double_to_fixed (100.0);
c_outer.y = pixman_double_to_fixed (100.0);
r_inner = 0;
r_outer = pixman_double_to_fixed (100.0);
gradient_img = pixman_image_create_radial_gradient (&c_inner, &c_outer,
r_inner, r_outer,
stops, 2);
#if 0
gradient_img = pixman_image_create_linear_gradient (&p1, &p2,
stops, 2);
#endif
pixman_image_composite (PIXMAN_OP_OVER, gradient_img, NULL, src_img,
0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
pixman_region32_init_rect (&clip_region, 50, 0, 100, 200);
pixman_image_set_clip_region32 (src_img, &clip_region);
pixman_image_set_source_clipping (src_img, TRUE);
pixman_image_set_has_client_clip (src_img, TRUE);
pixman_image_set_transform (src_img, &trans);
pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL);
dst_img = create_solid_bits (0xffff0000);
pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dst_img,
0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
#if 0
printf ("0, 0: %x\n", src[0]);
printf ("10, 10: %x\n", src[10 * 10 + 10]);
printf ("w, h: %x\n", src[(HEIGHT - 1) * 100 + (WIDTH - 1)]);
#endif
show_image (dst_img);
pixman_image_unref (gradient_img);
pixman_image_unref (src_img);
return 0;
}
