Turingon/8080-Emulator
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This commit is contained in:
Luxdragon 2024-01-15 21:15:53 +01:00
parent 8e0625a750
commit 66076a7076
1 changed files with 35 additions and 4 deletions
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39
emulator_shell.c
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@ -998,11 +998,41 @@ typedef struct cpu_data {
static void draw_callback(GtkWidget *widget, cairo_t *cr, gpointer user_data) {
int x, y;
int upscaleFactor = 4;
int upscaleFactor = 3;
uint8_t *video = malloc(sizeof(uint8_t) * 224 * 256 * 4);
//ROTATION ALGORITHM
for (int i=0; i< 224; i++)
{
for (int j = 0; j < 256; j+= 8)
{
int p;
//Read the first 1-bit pixel
// divide by 8 because there are 8 pixels
// in a byte
unsigned char pix = bitmap[(i*(256/8)) + j/8];
//That makes 8 output vertical pixels
// we need to do a vertical flip
// so j needs to start at the last line
// and advance backward through the buffer
int offset = (255-j)*(224*4) + (i*4);
unsigned int *p1 = (unsigned int*)(&video[offset]);
for (p=0; p<8; p++)
{
if ( 0!= (pix & (1<<p)))
*p1 = 1;
else
*p1 = 0;
p1-=224; //next line
}
}
}
// RENDERING GRAPHICS
for (x = 0; x < WIDTH; x++) {
for (y = 0; y < HEIGHT; y++) {
if (bitmap[y * WIDTH + x]) {
for (x = 0; x < 224; x++) {
for (y = 0; y < 256; y++) {
if (video[y * 224 + x]) {
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); // Set color to white
} else {
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); // Set color to black
@ -1012,6 +1042,7 @@ static void draw_callback(GtkWidget *widget, cairo_t *cr, gpointer user_data) {
cairo_fill(cr);
}
}
free(video);
}
void *cpu(void* arg) {