.png)
3 weeks ago
1
brr.h is a single-header application wrapper for software rendering apps.
- Creates a window and provides an API for frame rendering and event handling.
- Has no dependencies on 3D graphics APIs such as OpenGL or DirectX.
- Supports macOS (Core Graphics), Linux (x11), and Windows (GDI).
#define BRR_IMPLEMENTATION
#include "brr.h"
static int r = 128;
void frame(uint8_t *buffer, int width, int height){
// *buffer is a pointer to a frame bitmap in BGRX (Blue, Green, Red, _), 8 bits per color.
// width, height are a bitmap dimensions in pixels
int idx = 0;
while (idx < width * height * BRR_BYTES_PER_PIXEL){
buffer[idx] = 0; // Blue
buffer[idx + 1] = 0; // Green
buffer[idx + 2] = r % 255; // Red
idx += BRR_BYTES_PER_PIXEL;
}
}
void event(brr_event *event){
if (event->event_type == BRR_EV_KEYDOWN){
switch (event->keycode){
case BRR_KEY_RIGHT:
r += 3;
break;
case BRR_KEY_LEFT:
r -= 3;
break;
default:
break;
}
}
}
int main(int argc, const char * argv[]){
brr_start("hi brr", 320, 200, frame, event, NULL);
}
# macOS
gcc -x objective-c -framework Cocoa main.c -o main && ./main
# linux
gcc main.c -lX11 -lXext -o main && ./main
# windows (MSVC)
cl main.c && main.exe
# windows (mingw)
gcc main.c -mwindows -o main.exe && ./main.exe
| plasma | A classic demoscene–style plasma effect |
| events | An events inspector |
| microtext | A simple text renderer |
| cairo | A cairo graphics vector shape rendering |
| DOOM | A DOOM port based on doomgeneric by ozkl |
