From 0aee9aee5b2ea264d6fe89d05784ba3837469995 Mon Sep 17 00:00:00 2001
From: Abdelrahman Said <said.abdelrahman89@gmail.com>
Date: Fri, 22 Mar 2024 00:25:48 +0000
Subject: [PATCH] Implement basic PPM image writer

---
 ppm.c | 22 ++++++++++++++++++++++
 ppm.h |  9 +++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 ppm.c
 create mode 100644 ppm.h

diff --git a/ppm.c b/ppm.c
new file mode 100644
index 0000000..9286e7c
--- /dev/null
+++ b/ppm.c
@@ -0,0 +1,22 @@
+#include "ppm.h"
+#include "aliases.h"
+#include <stdio.h>
+#include <string.h>
+
+void write_p6_ppm(const char *filepath, u64 width, u64 height, Pixel *data) {
+  FILE *fp = fopen(filepath, "wb");
+  if (!fp) {
+    return;
+  }
+
+  char header[1024] = {0};
+  sprintf(header, "P6\n%lu %lu\n255\n", width, height);
+
+  u64 length = strlen(header);
+  fwrite(&header, length, 1, fp);
+
+  u64 pixel_count = width * height;
+  fwrite(data, sizeof(Pixel), pixel_count, fp);
+
+  fclose(fp);
+}
diff --git a/ppm.h b/ppm.h
new file mode 100644
index 0000000..d8ac00b
--- /dev/null
+++ b/ppm.h
@@ -0,0 +1,9 @@
+#include "aliases.h"
+
+typedef struct {
+  u8 r;
+  u8 g;
+  u8 b;
+} Pixel;
+
+void write_p6_ppm(const char *filepath, u64 width, u64 height, Pixel *data);