#include <stdio.h>
#include "private.h"


typedef struct {
    GLuint index;
    GLuint texture_id;
    GLboolean is_complete;
} FrameBuffer;

static FrameBuffer* ACTIVE_FRAMEBUFFER = NULL;
static NamedArray FRAMEBUFFERS;


void initFramebuffers() {
    named_array_init(&FRAMEBUFFERS, sizeof(FrameBuffer), 32);
}

void APIENTRY glGenFramebuffersEXT(GLsizei n, GLuint* framebuffers) {
    TRACE();

    while(n--) {
        GLuint id = 0;
        FrameBuffer* fb = (FrameBuffer*) named_array_alloc(&FRAMEBUFFERS, &id);
        fb->index = id;
        fb->is_complete = GL_FALSE;
        fb->texture_id = 0;

        *framebuffers = id;
        framebuffers++;
    }
}

void APIENTRY glDeleteFramebuffersEXT(GLsizei n, const GLuint* framebuffers) {
    TRACE();

    while(n--) {
        FrameBuffer* fb = (FrameBuffer*) named_array_get(&FRAMEBUFFERS, *framebuffers);

        if(fb == ACTIVE_FRAMEBUFFER) {
            ACTIVE_FRAMEBUFFER = NULL;
        }

        named_array_release(&FRAMEBUFFERS, *framebuffers++);
    }
}

void APIENTRY glBindFramebufferEXT(GLenum target, GLuint framebuffer) {
    TRACE();

    if(framebuffer) {
        ACTIVE_FRAMEBUFFER = (FrameBuffer*) named_array_get(&FRAMEBUFFERS, framebuffer);
    } else {
        ACTIVE_FRAMEBUFFER = NULL;
    }
}

void APIENTRY glFramebufferTexture2DEXT(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) {

}

void APIENTRY glGenerateMipmapEXT(GLenum target) {

}

GLenum APIENTRY glCheckFramebufferStatusEXT(GLenum target) {

}

GLboolean APIENTRY glIsFramebufferEXT(GLuint framebuffer) {

}