Function getTexel_RGBA8

tutorials/common/texture/texture2d.cpp:16–25

// TODO blocking

inline Vec4f getTexel_RGBA8(const Texture2D *self, const Vec2i i)
{
  assert(self);
  const uint32_t c = ((const uint32_t *)self->data)[i.y*self->size.x + i.x];
  const uint32_t r = c         & 0xff;
  const uint32_t g = (c >>  8) & 0xff;
  const uint32_t b = (c >> 16) & 0xff;
  const uint32_t a = c >> 24;
  return Vec4f((float)r, (float)g, (float)b, (float)a)*(1.f/255.f);
}

inline Vec4f getTexel_RGB8(const Texture2D *self, const Vec2i i)
{