src/apps/haiku3d/texture/BitmapTexture.cpp

   1 /*
   2  * Copyright 2009, Haiku Inc. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Alexandre Deckner <alex@zappotek.com>
   7  */
   8
   9 #include "BitmapTexture.h"
  10
  11 #include <Bitmap.h>
  12
  13 #include <GL/gl.h>
  14 #include <GL/glu.h>
  15 #include <stdio.h>
  16
  17
  18 BitmapTexture::BitmapTexture(BBitmap* bitmap)
  19         :
  20         Texture()
  21 {
  22         _Load(bitmap);
  23 }
  24
  25
  26 BitmapTexture::~BitmapTexture()
  27 {
  28 }
  29
  30
  31 void
  32 BitmapTexture::_Load(BBitmap* bitmap) {
  33         if (bitmap == NULL)
  34                 return;
  35
  36         glGenTextures(1, &fId);
  37         glBindTexture(GL_TEXTURE_2D, fId);
  38         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  39         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  40         glTexImage2D(GL_TEXTURE_2D, 0, 4,
  41                 (int) bitmap->Bounds().Width() + 1,
  42                 (int) bitmap->Bounds().Height() + 1,
  43                 0, GL_BGRA, GL_UNSIGNED_BYTE,
  44                 bitmap->Bits());
  45
  46         printf("BitmapTexture::_Load, loaded texture %u "
  47                 "(%" B_PRIi32 ", %" B_PRIi32 ", %" B_PRIi32 "bits)\n",
  48                 fId, (int32) bitmap->Bounds().Width(),
  49                 (int32) bitmap->Bounds().Height(),
  50                 8 * bitmap->BytesPerRow() / (int)bitmap->Bounds().Width());
  51
  52         delete bitmap;
  53 }