C++ (Cpp) glamor_destroy_fbo Examples

Example #1

File: glamor.c Project: fourks/xserver-xsdl-SIXEL

_X_EXPORT void
glamor_set_pixmap_texture(PixmapPtr pixmap, unsigned int tex)
{
    ScreenPtr screen = pixmap->drawable.pScreen;
    glamor_pixmap_private *pixmap_priv;
    glamor_screen_private *glamor_priv;
    glamor_pixmap_fbo *fbo;
    GLenum format;

    glamor_priv = glamor_get_screen_private(screen);
    pixmap_priv = glamor_get_pixmap_private(pixmap);

    if (pixmap_priv->base.fbo) {
        fbo = glamor_pixmap_detach_fbo(pixmap_priv);
        glamor_destroy_fbo(fbo);
    }

    format = gl_iformat_for_pixmap(pixmap);
    fbo = glamor_create_fbo_from_tex(glamor_priv, pixmap->drawable.width,
                                     pixmap->drawable.height, format, tex, 0);

    if (fbo == NULL) {
        ErrorF("XXX fail to create fbo.\n");
        return;
    }

    glamor_pixmap_attach_fbo(pixmap, fbo);
}

Example #2

/*
 * Prepare to upload a pixmap to texture memory.
 * no_alpha equals 1 means the format needs to wire alpha to 1.
 */
static int
glamor_pixmap_upload_prepare(PixmapPtr pixmap, GLenum format, int no_alpha,
                             int revert, int swap_rb)
{
    int flag = 0;
    glamor_pixmap_private *pixmap_priv;
    glamor_screen_private *glamor_priv;
    glamor_pixmap_fbo *fbo;
    GLenum iformat;

    pixmap_priv = glamor_get_pixmap_private(pixmap);
    glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);

    if (pixmap_priv->base.gl_fbo != GLAMOR_FBO_UNATTACHED)
        return 0;

    if (pixmap_priv->base.fbo
        && (pixmap_priv->base.fbo->width < pixmap->drawable.width
            || pixmap_priv->base.fbo->height < pixmap->drawable.height)) {
        fbo = glamor_pixmap_detach_fbo(pixmap_priv);
        glamor_destroy_fbo(fbo);
    }

    if (pixmap_priv->base.fbo && pixmap_priv->base.fbo->fb)
        return 0;

    if (!(no_alpha || (revert == REVERT_NORMAL)
          || (swap_rb != SWAP_NONE_UPLOADING))) {
        /* We don't need a fbo, a simple texture uploading should work. */

        flag = GLAMOR_CREATE_FBO_NO_FBO;
    }

    if ((flag == GLAMOR_CREATE_FBO_NO_FBO
         && pixmap_priv->base.fbo && pixmap_priv->base.fbo->tex)
        || (flag == 0 && pixmap_priv->base.fbo && pixmap_priv->base.fbo->fb))
        return 0;

    if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
        iformat = gl_iformat_for_pixmap(pixmap);
    else
        iformat = format;

    if (!glamor_pixmap_ensure_fbo(pixmap, iformat, flag))
        return -1;

    return 0;
}