bitmap_strerror: More verbose bitmap failures

1 files changed, 16 insertions, 0 deletions

diff --git a/src/bitmap.c b/src/bitmap.c
index 6d72cb0..31256e8 100644
--- a/src/bitmap.c
+++ b/src/bitmap.c
@@ -6,6 +6,15 @@
 
 #include "bitmap.h"
 
+static const int   bitmap_errors_cnt = 5;
+static const char* bitmap_errors[] = {
+	"OK.",
+	"Error opening file.", // Use errno instead
+	"Invalid or corrupted file.",
+	"Unsupported bit depth.",
+	"Compression not supported."
+};
+
 static struct bitmap_file_header bitmap_read_file_header(FILE *_file);
 
 static struct bitmap_image bitmap_read_pixel_data(FILE *_file, struct bitmap_file_header _header);
@@ -265,3 +274,10 @@ static uint8_t bitmap_rgb_luminance(uint8_t R, uint8_t G, uint8_t B) {
 
 	return ret;
 }
+
+char* bitmap_strerror( int _error ) {
+	if ( _error >= bitmap_errors_cnt || _error < 0)
+		return "Unknown Error.";
+
+	return (char*) bitmap_errors[_error];
+}