From 53ae95e46699687638d4fd094bffa47f391c699e Mon Sep 17 00:00:00 2001
From: JonasJan2 <niewiederhunde@wolke7.net>
Date: Mon, 24 Jun 2024 12:56:34 +0200
Subject: [PATCH] Assertions

---
 src/objectHandler.c | 13 +++++++++++--
 src/shader.c        |  8 ++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/objectHandler.c b/src/objectHandler.c
index 8e02d65..a4b2564 100644
--- a/src/objectHandler.c
+++ b/src/objectHandler.c
@@ -9,8 +9,9 @@
  * Basically generates vbo and vao for an object and saving them in the ObjectData struct.
  */
 void load_object(ObjectData* objectData) {
-		// write faces to buffer
-	//GLuint triangleVertexBufferObject;
+	assert(objectData != NULL);
+
+	// write faces to buffer
 	glGenBuffers(1, &objectData->vbo);
 	glBindBuffer(GL_ARRAY_BUFFER, objectData->vbo);
 	glBufferData(GL_ARRAY_BUFFER, objectData->object->length * sizeof(face), objectData->object->faces, GL_STATIC_DRAW);
@@ -75,6 +76,10 @@ void load_object(ObjectData* objectData) {
  * Returns an array of objects.
 */
 ObjectData* readObjFiles(char** path, int numModels, int* count) {
+	assert(path != NULL);
+	assert(count != NULL);
+	assert(numModels > 0);
+
 	ObjectData* objects = (ObjectData*) malloc(sizeof(ObjectData) * numModels);
 	*count += numModels;
 	if (!objects) {
@@ -95,6 +100,8 @@ ObjectData* readObjFiles(char** path, int numModels, int* count) {
  * Returns an array of objects.
  */
 ObjectData* readSingleObjFile(char* path) {
+	assert(path != NULL);
+
 	ObjectData* objectData = (ObjectData*) malloc(sizeof(ObjectData));
 	
 	if (!objectData) {
@@ -114,6 +121,8 @@ ObjectData* readSingleObjFile(char* path) {
  * Used to clean up the draw calls in Main().
  */
 void draw_object(ObjectData* objectData) {
+	assert(objectData != NULL);
+
     glBindVertexArray(objectData->vao);
     glDrawArrays(GL_TRIANGLES, 0, objectData->object->length * 3); // Annahme: Jedes face hat 3 vertices
     glBindVertexArray(0);
diff --git a/src/shader.c b/src/shader.c
index 24e2846..931b81b 100644
--- a/src/shader.c
+++ b/src/shader.c
@@ -4,6 +4,9 @@
 #include "shader.h"
 
 void compileShader(const GLchar *shaderSource, Shader *shader) {
+    assert(shaderSource != NULL);
+    assert(shader != NULL);
+
     shader->id = glCreateShader(shader->type);
 
     glShaderSource(shader->id, 1, &shaderSource, NULL);
@@ -23,12 +26,17 @@ void compileShader(const GLchar *shaderSource, Shader *shader) {
 }
 
 void compileShaders(Shader* shaders, const GLchar** glslSources, int numShaders) {
+    assert(glslSources != NULL);
+    assert(shaders != NULL);
     for (int i = 0; i < numShaders; i++) {
         compileShader(glslSources[i], &shaders[i]);
     }
 }
 
 ShaderProgram createShaderProgram(const GLchar* vertexSource, const GLchar* fragmentSource) {
+    assert(vertexSource != NULL);
+    assert(fragmentSource != NULL);
+    
     Shader vertexShader = { GL_VERTEX_SHADER, 0 };
     Shader fragmentShader = { GL_FRAGMENT_SHADER, 0 };