}
}
+static const guint8 sine_table[256] = {
+ 128, 131, 134, 137, 140, 143, 146, 149,
+ 152, 156, 159, 162, 165, 168, 171, 174,
+ 176, 179, 182, 185, 188, 191, 193, 196,
+ 199, 201, 204, 206, 209, 211, 213, 216,
+ 218, 220, 222, 224, 226, 228, 230, 232,
+ 234, 236, 237, 239, 240, 242, 243, 245,
+ 246, 247, 248, 249, 250, 251, 252, 252,
+ 253, 254, 254, 255, 255, 255, 255, 255,
+ 255, 255, 255, 255, 255, 255, 254, 254,
+ 253, 252, 252, 251, 250, 249, 248, 247,
+ 246, 245, 243, 242, 240, 239, 237, 236,
+ 234, 232, 230, 228, 226, 224, 222, 220,
+ 218, 216, 213, 211, 209, 206, 204, 201,
+ 199, 196, 193, 191, 188, 185, 182, 179,
+ 176, 174, 171, 168, 165, 162, 159, 156,
+ 152, 149, 146, 143, 140, 137, 134, 131,
+ 128, 124, 121, 118, 115, 112, 109, 106,
+ 103, 99, 96, 93, 90, 87, 84, 81,
+ 79, 76, 73, 70, 67, 64, 62, 59,
+ 56, 54, 51, 49, 46, 44, 42, 39,
+ 37, 35, 33, 31, 29, 27, 25, 23,
+ 21, 19, 18, 16, 15, 13, 12, 10,
+ 9, 8, 7, 6, 5, 4, 3, 3,
+ 2, 1, 1, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 1, 1,
+ 2, 3, 3, 4, 5, 6, 7, 8,
+ 9, 10, 12, 13, 15, 16, 18, 19,
+ 21, 23, 25, 27, 29, 31, 33, 35,
+ 37, 39, 42, 44, 46, 49, 51, 54,
+ 56, 59, 62, 64, 67, 70, 73, 76,
+ 79, 81, 84, 87, 90, 93, 96, 99,
+ 103, 106, 109, 112, 115, 118, 121, 124
+};
+
+
void
gst_video_test_src_zoneplate (GstVideoTestSrc * v, unsigned char *dest,
int w, int h)
paintinfo *p = π
struct fourcc_list_struct *fourcc;
struct vts_color_struct color;
- static guint8 sine_array[256];
- static int sine_array_inited = FALSE;
int t = v->zoneplate_t;
int xreset = -(w / 2) - v->xoffset; /* starting values for x^2 and y^2, centering the ellipse */
int yreset = -(h / 2) - v->yoffset;
int scale_kxy = 0xffff / (w / 2);
int scale_kx2 = 0xffff / w;
- if (!sine_array_inited) {
- int black = 16;
- int white = 235;
- int range = white - black;
- for (i = 0; i < 256; i++) {
- sine_array[i] =
- floor (range * (0.5 + 0.5 * sin (i * 2 * M_PI / 256)) + 0.5 + black);
- }
- sine_array_inited = TRUE;
- }
-
videotestsrc_setup_paintinfo (v, p, w, h);
fourcc = v->fourcc;
if (fourcc == NULL)
phase + ((v->kx2 * x * x) / w) + ((v->ky2 * y * y) / h) +
((v->kt2 * t * t) >> 1);
- color.Y = sine_array[phase & 0xff];
+ color.Y = sine_table[phase & 0xff];
color.R = color.Y;
color.G = color.Y;
phase = phase + ((v->kx2 * x * x * scale_kx2) >> 16) + ky2 + (kt2 >> 1);
videotestsrc_blend_color (&color, &p->foreground_color,
- &p->background_color, sine_array[phase & 0xff]);
+ &p->background_color, sine_table[phase & 0xff]);
p->paint_hline (p, i, j, 1);
}
paintinfo *p = π
struct fourcc_list_struct *fourcc;
struct vts_color_struct color;
- static guint8 sine_array[256];
- static int sine_array_inited = FALSE;
int t = v->zoneplate_t;
int xreset = -(w / 2) - v->xoffset; /* starting values for x^2 and y^2, centering the ellipse */
int scale_kxy = 0xffff / (w / 2);
int scale_kx2 = 0xffff / w;
- if (!sine_array_inited) {
- int black = 16;
- int white = 235;
- int range = white - black;
- for (i = 0; i < 256; i++) {
- sine_array[i] =
- floor (range * (0.5 + 0.5 * sin (i * 2 * M_PI / 256)) + 0.5 + black);
- }
- sine_array_inited = TRUE;
- }
-
videotestsrc_setup_paintinfo (v, p, w, h);
fourcc = v->fourcc;
if (fourcc == NULL)
phase = phase + ((v->kx2 * x * x * scale_kx2) >> 16) + ky2 + (kt2 >> 1);
color.Y = 128;
- color.U = sine_array[phase & 0xff];
- color.V = sine_array[phase & 0xff];
+ color.U = sine_table[phase & 0xff];
+ color.V = sine_table[phase & 0xff];
color.R = 128;
color.G = 128;
paintinfo *p = π
struct fourcc_list_struct *fourcc;
struct vts_color_struct color;
- static guint8 sine_array[256];
- static int sine_array_inited = FALSE;
double freq[8];
#ifdef SCALE_AMPLITUDE
#endif
int d;
- if (!sine_array_inited) {
- for (i = 0; i < 256; i++) {
- sine_array[i] =
- floor (255 * (0.5 + 0.5 * sin (i * 2 * M_PI / 256)) + 0.5);
- }
- sine_array_inited = TRUE;
- }
-
videotestsrc_setup_paintinfo (v, p, w, h);
fourcc = v->fourcc;
if (fourcc == NULL)
if (a < 0)
a = 0;
videotestsrc_blend_color (&color, &p->foreground_color,
- &p->background_color, 128 + a * (sine_array[d & 0xff] - 128));
+ &p->background_color, 128 + a * (sine_table[d & 0xff] - 128));
#else
videotestsrc_blend_color (&color, &p->foreground_color,
- &p->background_color, sine_array[d & 0xff]);
+ &p->background_color, sine_table[d & 0xff]);
#endif
}
p->paint_hline (p, i, j, 1);