/**
 * Copyright (c) 2026 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#pragma once
#include "display/texture/texture.h"
#include "error/errorgl.h"

typedef struct {
  GLuint id;
  texture_t texture;
} framebuffergl_t;

/**
 * Initializes the backbuffer framebuffer.  (OpenGL implementation).
 */
errorret_t frameBufferGLInitBackBuffer(void);

/**
 * Gets the height of the framebuffer. (OpenGL implementation).
 * 
 * @param framebuffer The framebuffer to get the height of.
 * @return The height of the framebuffer, or 0 if the framebuffer is NULL.
 */
uint32_t frameBufferGLGetWidth(const framebuffergl_t *framebuffer);

/**
 * Initializes an OpenGL style framebuffer.
 * 
 * @param fb The framebuffer to initialize.
 * @param width The width of the framebuffer.
 * @param height The height of the framebuffer.
 * @return Either error or not.
 */
uint32_t frameBufferGLGetHeight(const framebuffergl_t *framebuffer);

/**
 * Gets the width of the framebuffer. (OpenGL implementation).
 * 
 * @param framebuffer The framebuffer to get the width of.
 * @return The width of the framebuffer, or 0 if the framebuffer is NULL.
 */
errorret_t frameBufferGLBind(framebuffergl_t *framebuffer);

/**
 * Clears the framebuffer with the specified flags and color.
 * 
 * @param flags The clear flags.
 * @param color The clear color.
 */
void frameBufferGLClear(const uint8_t flags, const color_t color);

#ifdef DUSK_DISPLAY_SIZE_DYNAMIC
  /**
   * Initializes an OpenGL style framebuffer.
   * 
   * @param fb The framebuffer to initialize.
   * @param width The width of the framebuffer.
   * @param height The height of the framebuffer.
   * @return Either error or not.
   */
  errorret_t frameBufferGLInit(
    framebuffergl_t *fb,
    const uint32_t width,
    const uint32_t height
  );

  /**
   * Disposes of the framebuffer. Will also be used for request disposing of the
   * backbuffer.
   * 
   * @param framebuffer The framebuffer to dispose of.
   */
  errorret_t frameBufferGLDispose(framebuffergl_t *framebuffer);
#endif