1 files changed, 29 insertions, 0 deletions
diff --git a/libs/libgui/bmp.c b/libs/libgui/bmp.c
new file mode 100644
index 0000000..5576d16
--- /dev/null
+++ b/libs/libgui/bmp.c
@@ -0,0 +1,29 @@
+// MIT License, Copyright (c) 2020 Marvin Borner
+
+#include <def.h>
+#include <libgui/bmp.h>
+#include <mem.h>
+#include <print.h>
+#include <sys.h>
+
+struct bmp *bmp_load(const char *path)
+{
+	void *buf = sread(path);
+	if (!buf)
+		return NULL;
+
+	struct bmp_header *h = buf;
+	if (h->signature[0] != 'B' || h->signature[1] != 'M')
+		return NULL;
+
+	// TODO: Support padding with odd widths
+	struct bmp_info *info = (struct bmp_info *)((u32)buf + sizeof(*h));
+	struct bmp *bmp = malloc(sizeof(*bmp));
+	bmp->size.x = info->width;
+	bmp->size.y = info->height;
+	bmp->data = (u8 *)((u32)buf + h->offset);
+	bmp->bpp = info->bpp;
+	bmp->pitch = bmp->size.x * (bmp->bpp >> 3);
+
+	return bmp;
+}