/*
 * Copyright 2009, Haiku Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Alexandre Deckner <alex@zappotek.com>
 */

#include "BitmapTexture.h"

#include <Bitmap.h>

#include <GL/gl.h>
#include <GL/glu.h>
#include <stdio.h>


BitmapTexture::BitmapTexture(BBitmap* bitmap)
        :
        Texture()
{
        _Load(bitmap);
}


BitmapTexture::~BitmapTexture()
{
}


void
BitmapTexture::_Load(BBitmap* bitmap) {
        if (bitmap == NULL)
                return;

        glGenTextures(1, &fId);
        glBindTexture(GL_TEXTURE_2D, fId);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
                (int) bitmap->Bounds().Width() + 1,
                (int) bitmap->Bounds().Height() + 1,
                0, GL_BGRA, GL_UNSIGNED_BYTE,
                bitmap->Bits());

        printf("BitmapTexture::_Load, loaded texture %u "
                "(%" B_PRIi32 ", %" B_PRIi32 ", %" B_PRIi32 "bits)\n",
                fId, (int32) bitmap->Bounds().Width(),
                (int32) bitmap->Bounds().Height(),
                8 * bitmap->BytesPerRow() / (int)bitmap->Bounds().Width());

        delete bitmap;
}