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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 (int i = 0; i < DIGIT_WIDTH; i++) {
for (int 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;
}
//Rainbow 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 (int p = 0; p < width; p++) {
default_line[p] = (char) ((p*256) / (width));
}
//Use memcpy to quickly fill every row with the precalculated rainbow
//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 = g_object_new(KIRO_TYPE_SERVER, NULL);
KiroTrb *rb = g_object_new(KIRO_TYPE_TRB, NULL);
kiro_trb_reshape(rb, 512*512, 1000);
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)))
{
printf("Failed to start server properly.\n");
goto done;
}
guint frame = 0;
while(1)
{
print_current_frame(kiro_trb_dma_push(rb), frame, 512, 512, rand);
frame++;
}
done:
g_rand_free(rand);
g_object_unref(rb);
return 0;
}
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