opengl

commit 44a4379b1c8b1d6785d8d15455bea7277afdef29
parent be62803f07e44f72e881c172bcb3bfd1766ce519
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Wed, 28 Jun 2023 10:23:38 +0900

add allocation counters for debugging

Diffstat:
M
glm.c
 | 
20
++++++++++++++++++++
M
glm.h
 | 
4
++++
M
main.c
 | 
9
+++++++++

3 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/glm.c b/glm.c
@@ -6,6 +6,9 @@
 #include "glm.h"
 #include "err.h"
 
+static int numVec = 0; // number of vecs which are allocated and not freed.
+static int numMat = 0; // number of mats which are allocated and not freed.
+
 char *
 vecStr(char *s, vec *v)
 {
@@ -28,6 +31,7 @@ vecMake(float *data, int size)
 		v->data[i] = data[i];
 	}
 	v->size = size;
+	numVec++;
 	return v;
 }
 
@@ -36,6 +40,13 @@ vecFree(vec *v)
 {
 	free(v->data);
 	free(v);
+	numVec--;
+}
+
+int
+vecCount(void)
+{
+	return numVec;
 }
 
 int
@@ -127,6 +138,7 @@ matMake(float *data, int size)
 		m->data[i] = data[i];
 	}
 	m->size = size;
+	numMat++;
 	return m;
 }
 
@@ -139,6 +151,7 @@ matMakeIdent(int size)
 		m->data[i + size*i] = 1;
 	}
 	m->size = size;
+	numMat++;
 	return m;
 }
 
@@ -147,6 +160,13 @@ matFree(mat *m)
 {
 	free(m->data);
 	free(m);
+	numMat--;
+}
+
+int
+matCount(void)
+{
+	return numMat;
 }
 
 mat *
diff --git a/glm.h b/glm.h
@@ -16,6 +16,8 @@ char *vecStr(char *s, vec *v);
 vec *vecMake(float *data, int size);
 // VecFree() frees v.
 void vecFree(vec* v);
+// VecCount() returns the number of vecs allocated and not yes freed.
+int vecCount(void);
 // VecEq() tests equality of v and w.
 int vecEq(vec *v, vec *w);
 // VecAdd() adds w to v. w is unchanged. Returns the address of v or NULL if
@@ -29,6 +31,8 @@ char *matStr(char *s, mat *m);
 mat *matMake(float *data, int size);
 mat *matMakeIdent(int size);
 void matFree(mat *m);
+int matCount(void);
+
 mat *matCopy(const mat *m);
 float *matDataPtr(mat *m);
 
diff --git a/main.c b/main.c
@@ -224,5 +224,14 @@ main(void)
 	glDeleteBuffers(1, &VBO);
 	ShaderDelete(shader);	
 	glfwTerminate();
+	
+	if (matCount() != 0) {
+		fprintf(stderr, "%d mats not freed\n", matCount());
+		assert(0);
+	}
+	if (vecCount() != 0) {
+		fprintf(stderr, "%d mats not freed\n", vecCount());
+		assert(0);
+	}
 	return 0;
 }