src/gallium/drivers/nv50/nv50_surface.c

   1 /*
   2  * Copyright 2008 Ben Skeggs
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #include "nv50_context.h"
  24 #include "pipe/p_defines.h"
  25 #include "pipe/p_winsys.h"
  26 #include "pipe/p_inlines.h"
  27
  28 #include "util/u_tile.h"
  29
  30 static void
  31 nv50_surface_copy(struct pipe_context *pipe, boolean flip,
  32                   struct pipe_surface *dest, unsigned destx, unsigned desty,
  33                   struct pipe_surface *src, unsigned srcx, unsigned srcy,
  34                   unsigned width, unsigned height)
  35 {
  36         struct nv50_context *nv50 = (struct nv50_context *)pipe;
  37         struct nouveau_winsys *nvws = nv50->screen->nvws;
  38
  39         if (flip) {
  40                 desty += height;
  41                 while (height--) {
  42                         nvws->surface_copy(nvws, dest, destx, desty--, src,
  43                                            srcx, srcy++, width, 1);
  44                 }
  45         } else {
  46                 nvws->surface_copy(nvws, dest, destx, desty, src, srcx, srcy,
  47                                    width, height);
  48         }
  49 }
  50
  51 static void
  52 nv50_surface_fill(struct pipe_context *pipe, struct pipe_surface *dest,
  53                   unsigned destx, unsigned desty, unsigned width,
  54                   unsigned height, unsigned value)
  55 {
  56         struct nv50_context *nv50 = (struct nv50_context *)pipe;
  57         struct nouveau_winsys *nvws = nv50->screen->nvws;
  58
  59         nvws->surface_fill(nvws, dest, destx, desty, width, height, value);
  60 }
  61
  62 static void *
  63 nv50_surface_map(struct pipe_screen *screen, struct pipe_surface *ps,
  64                  unsigned flags )
  65 {
  66         struct pipe_winsys *ws = screen->winsys;
  67
  68         return ws->_buffer_map(ws, ps->buffer, flags);
  69 }
  70
  71 static void
  72 nv50_surface_unmap(struct pipe_screen *pscreen, struct pipe_surface *ps)
  73 {
  74         struct pipe_winsys *ws = pscreen->winsys;
  75
  76         ws->_buffer_unmap(ws, ps->buffer);
  77 }
  78
  79 void
  80 nv50_init_surface_functions(struct nv50_context *nv50)
  81 {
  82         nv50->pipe.surface_copy = nv50_surface_copy;
  83         nv50->pipe.surface_fill = nv50_surface_fill;
  84 }
  85
  86 void
  87 nv50_surface_init_screen_functions(struct pipe_screen *pscreen)
  88 {
  89         pscreen->surface_map = nv50_surface_map;
  90         pscreen->surface_unmap = nv50_surface_unmap;
  91 }
  92