示例#1
0
static void
set_auto_mipmap_cb (CoglTexture *sub_texture,
                    const float *sub_texture_coords,
                    const float *meta_coords,
                    void *user_data)
{
  cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (sub_texture),
                                          FALSE);
}
示例#2
0
CoglTexture *
cogl_texture_new_with_size (CoglContext *ctx,
                            int width,
			    int height,
                            CoglTextureFlags flags,
			    CoglPixelFormat internal_format)
{
  CoglTexture *tex;
  CoglError *skip_error = NULL;

  if ((_cogl_util_is_pot (width) && _cogl_util_is_pot (height)) ||
      (cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_BASIC) &&
       cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_MIPMAP)))
    {
      /* First try creating a fast-path non-sliced texture */
      tex = COGL_TEXTURE (cogl_texture_2d_new_with_size (ctx,
                                                         width, height,
                                                         internal_format));

      /* TODO: instead of allocating storage here it would be better
       * if we had some api that let us just check that the size is
       * supported by the hardware so storage could be allocated
       * lazily when uploading data. */
      if (!cogl_texture_allocate (tex, &skip_error))
        {
          cogl_error_free (skip_error);
          cogl_object_unref (tex);
          tex = NULL;
        }
    }
  else
    tex = NULL;

  if (tex)
    {
      CoglBool auto_mipmap = !(flags & COGL_TEXTURE_NO_AUTO_MIPMAP);
      cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (tex),
                                              auto_mipmap);
    }
  else
    {
      /* If it fails resort to sliced textures */
      int max_waste = flags & COGL_TEXTURE_NO_SLICING ? -1 : COGL_TEXTURE_MAX_WASTE;
      cogl_error_free (skip_error);
      tex = COGL_TEXTURE (cogl_texture_2d_sliced_new_with_size (ctx,
                                                                width,
                                                                height,
                                                                max_waste,
                                                                internal_format));
    }

  return tex;
}
示例#3
0
CoglTexture *
cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
                              CoglTextureFlags flags,
                              CoglPixelFormat internal_format,
                              CoglError **error)
{
  CoglContext *ctx = _cogl_bitmap_get_context (bitmap);
  CoglAtlasTexture *atlas_tex;
  CoglTexture *tex;
  CoglError *internal_error = NULL;

  /* First try putting the texture in the atlas */
  if ((atlas_tex = _cogl_atlas_texture_new_from_bitmap (bitmap,
                                                        flags,
                                                        internal_format,
                                                        &internal_error)))
    return COGL_TEXTURE (atlas_tex);

  if (cogl_error_matches (internal_error,
                          COGL_SYSTEM_ERROR,
                          COGL_SYSTEM_ERROR_NO_MEMORY))
    {
      _cogl_propagate_error (error, internal_error);
      return NULL;
    }

  cogl_error_free (internal_error);
  internal_error = NULL;

  /* If that doesn't work try a fast path 2D texture */
  if ((_cogl_util_is_pot (bitmap->width) &&
       _cogl_util_is_pot (bitmap->height)) ||
      (cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_BASIC) &&
       cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_NPOT_MIPMAP)))
    {
      tex = COGL_TEXTURE (cogl_texture_2d_new_from_bitmap (bitmap,
                                                           internal_format,
                                                           &internal_error));

      if (cogl_error_matches (internal_error,
                              COGL_SYSTEM_ERROR,
                              COGL_SYSTEM_ERROR_NO_MEMORY))
        {
          _cogl_propagate_error (error, internal_error);
          return NULL;
        }

      if (!tex)
        {
          cogl_error_free (internal_error);
          internal_error = NULL;
        }
    }
  else
    tex = NULL;

  if (tex)
    {
      CoglBool auto_mipmap = !(flags & COGL_TEXTURE_NO_AUTO_MIPMAP);
      cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (tex),
                                              auto_mipmap);
    }
  else
    {
      /* Otherwise create a sliced texture */
      tex = COGL_TEXTURE (_cogl_texture_2d_sliced_new_from_bitmap (bitmap,
                                                             flags,
                                                             internal_format,
                                                             error));
    }

  return tex;
}