1 files changed, 59 insertions, 0 deletions

diff --git a/src/Utility.hpp b/src/Utility.hpp
new file mode 100644
index 0000000..11b4ff7
--- /dev/null
+++ b/src/Utility.hpp
@@ -0,0 +1,59 @@
+#pragma once
+
+#include <algorithm>
+
+#include <GL/glew.h>
+
+template<class T>
+void endswap(T *objp) {
+	unsigned char *memp = reinterpret_cast<unsigned char *>(objp);
+	std::reverse(memp, memp + sizeof(T));
+}
+
+template<class T>
+void endswap(T &obj) {
+	unsigned char *raw = reinterpret_cast<unsigned char *>(&obj);
+	std::reverse(raw, raw + sizeof(T));
+}
+
+inline void endswap(unsigned char *arr, size_t arrLen) {
+	std::reverse(arr, arr + arrLen);
+}
+
+inline GLenum glCheckError_(const char *file, int line) {
+	GLenum errorCode;
+	while ((errorCode = glGetError()) != GL_NO_ERROR) {
+		std::string error;
+		switch (errorCode) {
+			case GL_INVALID_ENUM:
+				error = "INVALID_ENUM";
+				break;
+			case GL_INVALID_VALUE:
+				error = "INVALID_VALUE";
+				break;
+			case GL_INVALID_OPERATION:
+				error = "INVALID_OPERATION";
+				break;
+			case GL_STACK_OVERFLOW:
+				error = "STACK_OVERFLOW";
+				break;
+			case GL_STACK_UNDERFLOW:
+				error = "STACK_UNDERFLOW";
+				break;
+			case GL_OUT_OF_MEMORY:
+				error = "OUT_OF_MEMORY";
+				break;
+			case GL_INVALID_FRAMEBUFFER_OPERATION:
+				error = "INVALID_FRAMEBUFFER_OPERATION";
+				break;
+		}
+		static int t = 0;
+		t++;
+		if (t>10)
+			LOG(FATAL);
+		LOG(ERROR) << "OpenGL error: " << error << " at " << file << ":" << line;
+	}
+	return errorCode;
+}
+
+#define glCheckError() glCheckError_(__FILE__, __LINE__)
\ No newline at end of file