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#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "kiro-server.h"
#include "kiro-trb.h"
#include <gmodule.h>
#include <gio/gio.h>
#include <string.h>
#include <math.h>
static const char g_digits[10][20] = {
/* 0 */
{
0x00, 0xff, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0xff, 0x00, 0x00, 0xff,
0xff, 0x00, 0x00, 0xff,
0x00, 0xff, 0xff, 0x00
},
/* 1 */
{
0x00, 0x00, 0xff, 0x00,
0x00, 0xff, 0xff, 0x00,
0x00, 0x00, 0xff, 0x00,
0x00, 0x00, 0xff, 0x00,
0x00, 0x00, 0xff, 0x00
},
/* 2 */
{
0x00, 0xff, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0x00, 0x00, 0xff, 0x00,
0x00, 0xff, 0x00, 0x00,
0xff, 0xff, 0xff, 0xff
},
/* 3 */
{
0x00, 0xff, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0x00, 0x00, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0x00, 0xff, 0xff, 0x00
},
/* 4 */
{
0xff, 0x00, 0x00, 0x00,
0xff, 0x00, 0x00, 0xff,
0xff, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0xff,
0x00, 0x00, 0x00, 0xff
},
/* 5 */
{
0xff, 0xff, 0xff, 0xff,
0xff, 0x00, 0x00, 0x00,
0x00, 0xff, 0xff, 0x00,
0x00, 0x00, 0x00, 0xff,
0xff, 0xff, 0xff, 0x00
},
/* 6 */
{
0x00, 0xff, 0xff, 0xff,
0xff, 0x00, 0x00, 0x00,
0xff, 0xff, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0x00, 0xff, 0xff, 0x00
},
/* 7 */
{
0xff, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0xff,
0x00, 0x00, 0xff, 0x00,
0x00, 0xff, 0x00, 0x00,
0xff, 0x00, 0x00, 0x00
},
/* 8 */
{
0x00, 0xff, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0x00, 0xff, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0x00, 0xff, 0xff, 0x00
},
/* 9 */
{
0x00, 0xff, 0xff, 0x00,
0xff, 0x00, 0x00, 0xff,
0x00, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0xff,
0xff, 0xff, 0xff, 0x00
}
};
static const guint DIGIT_WIDTH = 4;
static const guint DIGIT_HEIGHT = 5;
static void
print_number (gchar *buffer, guint number, guint x, guint y, guint width)
{
for (guint i = 0; i < DIGIT_WIDTH; i++) {
for (guint j = 0; j < DIGIT_HEIGHT; j++) {
char val = (char) g_digits[number][j * DIGIT_WIDTH + i];
if (val != 0x00) {
//This should make the frame counter appear in a bright yellow
val = 0xBE;
}
buffer[ (y + j)*width + (x + i)] = (guint8) val;
}
}
}
static void
print_current_frame (gchar *buffer, guint number, guint width, guint height, GRand *rand)
{
guint divisor = 10000000;
int x = 1;
while (divisor > 0) {
print_number (buffer, number / divisor, x, 1, width);
number = number % divisor;
divisor = divisor / 10;
x += DIGIT_WIDTH + 1;
}
//Grayscale pattern is the same for every row. Just calculate one single
//Scanline, so we can reuse it and dont have to do the whole calculation
//for every row again.
char default_line[width];
for (guint p = 0; p < width; p++) {
default_line[p] = (char) ((p * 256) / (width));
}
//Use memcpy to quickly fill every row with the precalculated grayscale
//pattern
for (guint y = 16; y < height; y++) {
guint index = y * width;
memcpy (buffer + index, &default_line[0], width);
}
//This block will fill a square at the center of the image with normal
//distributed random data
const double mean = 128.0;
const double std = 32.0;
for (guint y = (height / 3); y < ((height * 2) / 3); y++) {
guint row_start = y * width;
for (guint i = (width / 3); i < ((width * 2) / 3); i++) {
int index = row_start + i;
double u1 = g_rand_double (rand);
double u2 = g_rand_double (rand);
double r = sqrt (-2 * log (u1)) * cos (2 * G_PI * u2);
buffer[index] = (guint8) (r * std + mean);
}
}
}
int
main (void)
{
KiroServer *server = kiro_server_new ();
KiroTrb *rb = kiro_trb_new ();
kiro_trb_reshape (rb, 512 * 512, 15);
GRand *rand = g_rand_new();
if (0 > kiro_server_start (server, NULL, "60010", kiro_trb_get_raw_buffer (rb), kiro_trb_get_raw_size (rb))) {
g_critical ("Failed to start server properly");
goto done;
}
guint frame = 0;
gchar *buffer = NULL;
while (1) {
buffer = kiro_trb_dma_push (rb);
print_current_frame (buffer, frame, 512, 512, rand);
frame++;
}
done:
g_rand_free (rand);
kiro_trb_free (rb);
kiro_server_free (server);
return 0;
}
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