from cpython cimport PyObject
from pytouhou.lib.opengl cimport GLuint
from .texture cimport TextureManager, FontManager
from .framebuffer cimport Framebuffer

cdef struct Vertex:
    short x, y, z, padding
    float u, v
    unsigned char r, g, b, a


cdef struct TextVertex:
    short x, y
    float u, v
    unsigned char r, g, b, a


cdef class Texture:
    cdef long key
    cdef GLuint texture
    cdef GLuint *pointer
    cdef unsigned short indices[2][65536]

    #XXX: keep a reference so that when __dealloc__ is called self.pointer is still valid.
    cdef Renderer renderer


cdef class Renderer:
    cdef TextureManager texture_manager
    cdef FontManager font_manager
    cdef Vertex vertex_buffer[MAX_ELEMENTS]
    cdef long x, y, width, height

    # For modern GL.
    cdef GLuint vbo, text_vbo
    cdef GLuint vao, text_vao

    cdef GLuint textures[MAX_TEXTURES]
    cdef unsigned short *indices[MAX_TEXTURES][2]
    cdef unsigned short last_indices[2 * MAX_TEXTURES]
    cdef PyObject *elements[640*3]

    cdef void set_state(self) nogil
    cdef void set_text_state(self) nogil
    cdef bint render_elements(self, elements) except True
    cdef bint render_quads(self, rects, colors, GLuint texture) except True