fixed leaks, also see pbr example review required

examples/models/models_material_pbr.c

@@ -98,7 +98,17 @@ int main(void)
 
     // De-Initialization
     //--------------------------------------------------------------------------------------
-    UnloadMaterial(model.materials[0]); // Unload material: shader and textures
+    //
+
+    // REQUIRES REVIEW
+    // as unload model removes *just* the maps now (user may be using shaders
+    // and textures elsewhere) when using a custom material you need to unload
+    // it then give the model a default model (to avoid double free)
+    // how ever this still results in a small leak....
+
+    UnloadMaterial(model.materials[0]);
+    model.materials[0] = LoadMaterialDefault();
+
     UnloadModel(model);         // Unload model
 
     CloseWindow();              // Close window and OpenGL context

src/models.c

@@ -669,7 +669,8 @@ Model LoadModel(const char *fileName)
         model.materials = (Material *)RL_CALLOC(model.materialCount, sizeof(Material));
         model.materials[0] = LoadMaterialDefault();
 
-        model.meshMaterial = (int *)RL_CALLOC(model.meshCount, sizeof(int));
+        // this is a double allocation, as LoadXXX should do it....
+        //model.meshMaterial = (int *)RL_CALLOC(model.meshCount, sizeof(int));
     }
 
     return model;
@@ -2797,10 +2798,11 @@ static Model LoadOBJ(const char *fileName)
         {
             model.materialCount = materialCount;
             model.materials = (Material *)RL_CALLOC(model.materialCount, sizeof(Material));
-        }
 
+        }
         model.meshMaterial = (int *)RL_CALLOC(model.meshCount, sizeof(int));
 
+
         /*
         // Multiple meshes data reference
         // NOTE: They are provided as a faces offset
@@ -2915,12 +2917,17 @@ static Model LoadOBJ(const char *fileName)
             if (materials[m].displacement_texname != NULL) model.materials[m].maps[MAP_HEIGHT].texture = LoadTexture(materials[m].displacement_texname);  //char *displacement_texname; // disp
         }
 
+        if (model.meshMaterial[0]==-1) {
+            model.meshMaterial[0] = 0; // will be given default material by LoadModel
+        }
+
         tinyobj_attrib_free(&attrib);
         tinyobj_shapes_free(meshes, meshCount);
         tinyobj_materials_free(materials, materialCount);
         RL_FREE(data); // oh ray how did you miss this...! :-p
     }
 
+
     // NOTE: At this point we have all model data loaded
     TraceLog(LOG_INFO, "[%s] Model loaded successfully in RAM (CPU)", fileName);
 
@@ -3251,6 +3258,8 @@ static Model LoadIQM(const char *fileName)
         }
     }
 
+    model.meshMaterial = (int *)RL_CALLOC(model.meshCount, sizeof(int));
+
     fclose(iqmFile);
     RL_FREE(imesh);
     RL_FREE(tri);

src/raudio.c

@@ -468,13 +468,17 @@ static void InitAudioBufferPool()
     for (int i = 0; i < MAX_AUDIO_BUFFER_POOL_CHANNELS; i++)
     {
         audioBufferPool[i] = InitAudioBuffer(DEVICE_FORMAT, DEVICE_CHANNELS, DEVICE_SAMPLE_RATE, 0, AUDIO_BUFFER_USAGE_STATIC);
+        // Not needed (only the audiobuffer header) - leak prevention!
+        RL_FREE(audioBufferPool[i]->buffer);
     }
 }
 
 // Close the audio buffers pool
 static void CloseAudioBufferPool()
 {
-    for (int i = 0; i < MAX_AUDIO_BUFFER_POOL_CHANNELS; i++) RL_FREE(audioBufferPool[i]);
+    for (int i = 0; i < MAX_AUDIO_BUFFER_POOL_CHANNELS; i++) {
+        RL_FREE(audioBufferPool[i]);
+    }
 }
 
 //----------------------------------------------------------------------------------