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

#include "render.h"

render_t * renderInit(char *name) {
  // Initialize the renderer
  render_t *render = malloc(sizeof(render_t));
  if(!render) return NULL; 
  // render->width = WINDOW_WIDTH_DEFAULT;
  // render->height = WINDOW_HEIGHT_DEFAULT;

  //GLEnable Things
  glEnable(GL_BLEND);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  glEnable(GL_DEPTH_TEST);
  glDepthMask(GL_TRUE);
  glDepthFunc(GL_LEQUAL);

  return render;
}

void renderFrame(render_t *render) {
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

  float z = 0.0f;

  glBegin(GL_TRIANGLES);
    glColor3f(1, 0, 0);
    glVertex3f(-1, -1, z);

    glColor3f(0, 1, 0);
    glVertex3f(0, 1, z);

    glColor3f(0, 0, 1);
    glVertex3f(1, -1, z);
  glEnd();
}

bool renderDispose(render_t *render) {
  // Free up the renderer
  free(render);
  return true;
}

void renderSetResolution(render_t *render, uint32_t width, uint32_t height) {
  render->width = width;
  render->height = height;
  glViewport(0, 0, width, height);
}