Added frame buffer support.

src/display/framebuffer.h

@@ -0,0 +1,34 @@
+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include <dawn/dawn.h>
+#include "texture.h"
+
+/**
+ * Creates a new frame buffer that can be rendered to.
+ * 
+ * @param width Width of the frame buffer (in pixels).
+ * @param height Height of the frame buffer (in pixels).
+ * @return A renderable frame buffer.
+ */
+framebuffer_t * frameBufferCreate(int32_t width, int32_t height);
+
+/**
+ * Use a given frame buffer as the current rendering context.
+ * 
+ * @param frameBuffer Frame buffer to use, or NULL to not use any.
+ * @param clear Whether or not to clear the frame buffer prior to rendering.
+ */
+void frameBufferUse(framebuffer_t *frameBuffer, bool clear);
+
+/**
+ * Dispose/cleanup a previously created frame buffer.
+ * 
+ * @param frameBuffer Frame Buffer to clean.
+ */
+void frameBufferDispose(framebuffer_t *frameBuffer);