From 3d6c756ab769870b88fe8266a172446f913d50be Mon Sep 17 00:00:00 2001
From: Colton Pawielski <cepawiel@mtu.edu>
Date: Fri, 14 May 2021 08:57:10 -0400
Subject: [PATCH] Fix memory leaks in samples

Add free to end of LoadGLTextures() to release image1 after use.
---
 samples/lerabot01/main.c       | 2 ++
 samples/lights/main.c          | 2 ++
 samples/mipmap/main.c          | 2 ++
 samples/nehe06/main.c          | 2 ++
 samples/nehe06_4444twid/main.c | 2 ++
 samples/nehe06_vq/main.c       | 2 ++
 samples/paletted/main.c        | 2 ++
 7 files changed, 14 insertions(+)

diff --git a/samples/lerabot01/main.c b/samples/lerabot01/main.c
index dfcb696..6d63f2c 100644
--- a/samples/lerabot01/main.c
+++ b/samples/lerabot01/main.c
@@ -134,6 +134,8 @@ void LoadGLTextures() {
     // 2d texture, level of detail 0 (normal), 3 components (red, green, blue), x size from image, y size from image,
     // border 0 (normal), rgb color data, unsigned byte data, and finally the data itself.
     glTexImage2D(GL_TEXTURE_2D, 0, 3, image1->sizeX, image1->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, image1->data);
+
+    free(image1);
 };
 
 /* A general OpenGL initialization function.  Sets all of the initial parameters. */
diff --git a/samples/lights/main.c b/samples/lights/main.c
index 15088d7..23dd6ec 100644
--- a/samples/lights/main.c
+++ b/samples/lights/main.c
@@ -141,6 +141,8 @@ void LoadGLTextures() {
     glTexImage2D(GL_TEXTURE_2D, 0, 3, image1->sizeX, image1->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, image1->data);
 
     glGenerateMipmapEXT(GL_TEXTURE_2D);
+
+    free(image1);
 };
 
 
diff --git a/samples/mipmap/main.c b/samples/mipmap/main.c
index 0ab8447..43f5197 100644
--- a/samples/mipmap/main.c
+++ b/samples/mipmap/main.c
@@ -137,6 +137,8 @@ void LoadGLTextures() {
     glTexImage2D(GL_TEXTURE_2D, 0, 3, image1->sizeX, image1->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, image1->data);
 
     glGenerateMipmapEXT(GL_TEXTURE_2D);
+
+    free(image1);
 };
 
 /* A general OpenGL initialization function.  Sets all of the initial parameters. */
diff --git a/samples/nehe06/main.c b/samples/nehe06/main.c
index c712ba3..475f58e 100644
--- a/samples/nehe06/main.c
+++ b/samples/nehe06/main.c
@@ -140,6 +140,8 @@ void LoadGLTextures() {
     glTexImage2D(GL_TEXTURE_2D, 0, 3, image1->sizeX, image1->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, image1->data);
 
     glGenerateMipmapEXT(GL_TEXTURE_2D);
+
+    free(image1);
 };
 
 /* A general OpenGL initialization function.  Sets all of the initial parameters. */
diff --git a/samples/nehe06_4444twid/main.c b/samples/nehe06_4444twid/main.c
index 94125ae..d5f05b7 100644
--- a/samples/nehe06_4444twid/main.c
+++ b/samples/nehe06_4444twid/main.c
@@ -156,6 +156,8 @@ void LoadGLTextures() {
         GL_TEXTURE_2D, 0, image1->internal_format, image1->sizeX, image1->sizeY, 0,
         image1->format, image1->type, image1->data
     );
+
+    free(image1);
 };
 
 /* A general OpenGL initialization function.  Sets all of the initial parameters. */
diff --git a/samples/nehe06_vq/main.c b/samples/nehe06_vq/main.c
index c4501e2..cf1e416 100644
--- a/samples/nehe06_vq/main.c
+++ b/samples/nehe06_vq/main.c
@@ -162,6 +162,8 @@ void LoadGLTextures() {
         GL_TEXTURE_2D, 0, image1->internalFormat, image1->sizeX, image1->sizeY, 0,
         image1->dataSize, image1->data
     );
+
+    free(image1);
 };
 
 /* A general OpenGL initialization function.  Sets all of the initial parameters. */
diff --git a/samples/paletted/main.c b/samples/paletted/main.c
index 69826da..1e13df3 100644
--- a/samples/paletted/main.c
+++ b/samples/paletted/main.c
@@ -125,6 +125,8 @@ void LoadGLTextures() {
     // border 0 (normal), rgb color data, unsigned byte data, and finally the data itself.
     glTexImage2D(GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, image1->width, image1->height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE_TWID_KOS, image1->data);
     glGenerateMipmapEXT(GL_TEXTURE_2D);
+
+    free(image1);
 }
 
 /* A general OpenGL initialization function.  Sets all of the initial parameters. */