Use VertexBuffer usage to determine memory type

Author: xCollateral

src/main/java/net/vulkanmod/mixin/render/vertex/VertexBufferM.java

@@ -20,7 +20,7 @@ public class VertexBufferM {
 
     @Inject(method = "<init>", at = @At("RETURN"))
     private void constructor(VertexBuffer.Usage usage, CallbackInfo ci) {
-        vbo = new VBO();
+        vbo = new VBO(usage);
     }
 
     @Redirect(method = "<init>", at = @At(value = "INVOKE", target = "Lcom/mojang/blaze3d/platform/GlStateManager;_glGenBuffers()I"))

src/main/java/net/vulkanmod/render/VBO.java

@@ -9,10 +9,7 @@
 import net.vulkanmod.interfaces.ShaderMixed;
 import net.vulkanmod.vulkan.Renderer;
 import net.vulkanmod.vulkan.VRenderSystem;
-import net.vulkanmod.vulkan.memory.AutoIndexBuffer;
-import net.vulkanmod.vulkan.memory.IndexBuffer;
-import net.vulkanmod.vulkan.memory.MemoryTypes;
-import net.vulkanmod.vulkan.memory.VertexBuffer;
+import net.vulkanmod.vulkan.memory.*;
 import net.vulkanmod.vulkan.shader.GraphicsPipeline;
 import net.vulkanmod.vulkan.shader.Pipeline;
 import net.vulkanmod.vulkan.texture.VTextureSelector;
@@ -22,6 +19,7 @@
 
 @Environment(EnvType.CLIENT)
 public class VBO {
+    private final MemoryType memoryType;
     private VertexBuffer vertexBuffer;
     private IndexBuffer indexBuffer;
 
@@ -31,7 +29,9 @@ public class VBO {
 
     private boolean autoIndexed = false;
 
-    public VBO() {}
+    public VBO(com.mojang.blaze3d.vertex.VertexBuffer.Usage usage) {
+       this.memoryType = usage == com.mojang.blaze3d.vertex.VertexBuffer.Usage.STATIC ? MemoryTypes.GPU_MEM : MemoryTypes.HOST_MEM;
+    }
 
     public void upload(MeshData meshData) {
         MeshData.DrawState parameters = meshData.drawState();
@@ -51,7 +51,7 @@ private void uploadVertexBuffer(MeshData.DrawState parameters, ByteBuffer data)
             if (this.vertexBuffer != null)
                 this.vertexBuffer.freeBuffer();
 
-            this.vertexBuffer = new VertexBuffer(data.remaining(), MemoryTypes.GPU_MEM);
+            this.vertexBuffer = new VertexBuffer(data.remaining(), this.memoryType);
             this.vertexBuffer.copyToVertexBuffer(parameters.format().getVertexSize(), parameters.vertexCount(), data);
         }
     }