1 files changed, 58 insertions, 0 deletions
diff --git a/src/vkutil.h b/src/vkutil.h
new file mode 100644
index 0000000..7ab19a0
--- /dev/null
+++ b/src/vkutil.h
@@ -0,0 +1,58 @@
+#ifndef _VKUTIL_H
+#define _VKUTIL_H
+
+/**
+  * vkutil.h -- helper functions and macros for working with vulkan in C
+  */
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#include <vulkan/vulkan.h>
+#include <vulkan/vk_enum_string_helper.h> // for string_VkResult
+
+#define VK_ARRAY_LEN(arr) sizeof((arr))/sizeof((arr)[0])
+
+#define VK_CHECK(x)                                   \
+do {                                                  \
+  VkResult err = x;                                   \
+  if (err) {                                          \
+    fprintf(stderr, "%s:%d:0: vulkan error: %s   \n", \
+    __FILE__+3, __LINE__, string_VkResult(err));      \
+    abort();                                          \
+  }                                                   \
+} while (0)
+
+typedef enum {
+  VK_INFO = 0,
+  VK_WARN,
+  VK_ERROR,
+} log_type;
+
+void
+vk_log(log_type t, const char * f, ...)
+{
+#ifdef VKDEBUG
+  va_list args;
+  va_start(args, f);
+  switch (t) {
+  case VK_INFO:
+    printf("INFO: ");
+    vprintf(f, args);
+    break;
+  case VK_WARN:
+    fprintf(stderr, "WARN: ");
+    vfprintf(stderr, f, args);
+    break;
+  case VK_ERROR:
+    fprintf(stderr, "ERROR: ");
+    vfprintf(stderr, f, args);
+    break;
+  }
+  va_end(args);
+#else
+  return;
+#endif
+}
+
+#endif  /* _VKUTIL_H */