/**
 * Copyright (c) 2021 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#include "render.h"

void renderInit() {
  // Enable GL things.
  glEnable(GL_BLEND);
  glEnable(GL_TEXTURE_2D);
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_BLEND);

  // Setup the alpha blend function.
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  glDepthMask(GL_TRUE);
  glDepthFunc(GL_LEQUAL);

  glClearColor(0,0,0, 0.0);
}

void renderFrameStart(render_t *render) {
  // Clear the frame buffer.
  renderResetFramebuffer(render);
}

void renderDispose() {
  
}

void renderSetResolution(render_t *render, float width, float height) {
  ASSERT_NOT_NULL(render);
  ASSERT_GREATER_THAN(width, 0);
  ASSERT_GREATER_THAN(height, 0);

  render->width = width;
  render->height = height;
}

void renderResetFramebuffer(render_t *render) {
  ASSERT_NOT_NULL(render);

  frameBufferUnbind(render->width, render->height, true);
}