src/mesa/drivers/dri/nouveau/nouveau_surface.c

   1 /*
   2  * Copyright (C) 2009 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_context.h"
  29 #include "nouveau_util.h"
  30
  31 void
  32 nouveau_surface_alloc(GLcontext *ctx, struct nouveau_surface *s,
  33                       enum nouveau_surface_layout layout,
  34                       unsigned flags, unsigned format,
  35                       unsigned width, unsigned height)
  36 {
  37         unsigned tile_mode, cpp = _mesa_get_format_bytes(format);
  38         int ret;
  39
  40         nouveau_bo_ref(NULL, &s->bo);
  41
  42         *s = (struct nouveau_surface) {
  43                 .layout = layout,
  44                 .format = format,
  45                 .width = width,
  46                 .height = height,
  47                 .cpp = cpp,
  48                 .pitch = width * cpp,
  49         };
  50
  51         if (layout == TILED) {
  52                 s->pitch = align(s->pitch, 256);
  53                 tile_mode = s->pitch;
  54         } else {
  55                 s->pitch = align(s->pitch, 64);
  56                 tile_mode = 0;
  57         }
  58
  59         ret = nouveau_bo_new_tile(context_dev(ctx), flags, 0, s->pitch * height,
  60                                   tile_mode, 0, &s->bo);
  61         assert(!ret);
  62 }
  63
  64 void
  65 nouveau_surface_ref(struct nouveau_surface *src,
  66                     struct nouveau_surface *dst)
  67 {
  68         if (src) {
  69                 dst->offset = src->offset;
  70                 dst->layout = src->layout;
  71                 dst->format = src->format;
  72                 dst->width = src->width;
  73                 dst->height = src->height;
  74                 dst->cpp = src->cpp;
  75                 dst->pitch = src->pitch;
  76                 nouveau_bo_ref(src->bo, &dst->bo);
  77
  78         } else {
  79                 nouveau_bo_ref(NULL, &dst->bo);
  80         }
  81 }