struct default_gl_vertex_object {
    uint32 VertexArrayObject;
    uint32 VertexBufferObject;
    uint32 ElementBufferObject;
};

struct gl_vertex_shader {
    uint32 VertexArrayObject;
    uint32 VertexBufferObject;
};

static default_gl_vertex_object DefaultVerts;
static gl_vertex_shader GL_DefaultVertexObjects;
static uint32 DefaultVertexShader;
static uint32 DefaultShaderProgram;
static uint32 MaskShaderProgram;

float GL_DefaultVertices[] = {
     1.0f,  1.0f, 0.0f, 1.0f, 1.0f,
     1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
    -1.0f, -1.0f, 0.0f, 0.0f, 0.0f,
    -1.0f,  1.0f, 0.0f, 0.0f, 1.0f,
};