| /* $Id: genkgi_mode.c,v 1.1.1.1 2012/03/29 17:22:11 uid42307 Exp $ |
| ****************************************************************************** |
| |
| display-fbdev-kgicon-generic-mesa |
| |
| Copyright (C) 1999 Jon Taylor [taylorj@ggi-project.org] |
| |
| Permission is hereby granted, free of charge, to any person obtaining a |
| copy of this software and associated documentation files (the "Software"), |
| to deal in the Software without restriction, including without limitation |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| and/or sell copies of the Software, and to permit persons to whom the |
| Software is furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included in |
| all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| ****************************************************************************** |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <sys/ioctl.h> |
| #include <sys/mman.h> |
| |
| #include <ggi/internal/ggi-dl.h> |
| #include <ggi/mesa/ggimesa_int.h> |
| #include <ggi/mesa/debug.h> |
| #include "genkgi.h" |
| |
| int GGIMesa_genkgi_getapi(ggi_visual *vis, int num, char *apiname, char *arguments) |
| { |
| struct genkgi_priv_mesa *priv = GENKGI_PRIV_MESA(vis); |
| |
| GGIMESADPRINT_CORE("Entered mesa_genkgi_getapi, num=%d\n", num); |
| |
| strcpy(arguments, ""); |
| |
| switch(num) |
| { |
| case 0: |
| if (priv->have_accel) |
| { |
| strcpy(apiname, priv->accel); |
| return 0; |
| } |
| break; |
| } |
| return -1; |
| } |
| |
| int GGIMesa_genkgi_flush(ggi_visual *vis, int x, int y, int w, int h, int tryflag) |
| { |
| struct genkgi_priv_mesa *priv = GENKGI_PRIV_MESA(vis); |
| int junkval; |
| |
| priv->oldpriv->kgicommand_ptr += getpagesize(); |
| (kgiu32)(priv->oldpriv->kgicommand_ptr) &= 0xfffff000; |
| junkval = *((int *)(priv->oldpriv->kgicommand_ptr)); |
| |
| /* Check if we are now in the last page, and reset the |
| * FIFO if so. We can't use the last page to send |
| * more commands, since there's no page after it that |
| * we can touch to fault in the last page's commands. |
| * |
| * FIXME: This will be replaced with a flush-and-reset handler |
| * on the end-of-buffer pagefault at some point.... |
| * |
| */ |
| if ((priv->oldpriv->kgicommand_ptr - priv->oldpriv->mapped_kgicommand) |
| >= (priv->oldpriv->kgicommand_buffersize - getpagesize())) |
| { |
| munmap(priv->oldpriv->mapped_kgicommand, priv->oldpriv->kgicommand_buffersize); |
| if ((priv->oldpriv->mapped_kgicommand = |
| mmap(NULL, |
| priv->oldpriv->kgicommand_buffersize, |
| PROT_READ | PROT_WRITE, |
| MAP_SHARED, |
| priv->oldpriv->fd_kgicommand, |
| 0)) == MAP_FAILED) |
| { |
| ggiPanic("Failed to remap kgicommand!"); |
| } |
| priv->oldpriv->kgicommand_ptr = priv->oldpriv->mapped_kgicommand; |
| } |
| return 0; |
| } |