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 #include "main/formats.h"
  32
  33 void
  34 nouveau_surface_alloc(struct gl_context *ctx, struct nouveau_surface *s,
  35                       enum nouveau_surface_layout layout,
  36                       unsigned flags, unsigned format,
  37                       unsigned width, unsigned height)
  38 {
  39         union nouveau_bo_config config = {};
  40         int ret, cpp = _mesa_get_format_bytes(format);
  41
  42         nouveau_bo_ref(NULL, &s->bo);
  43
  44         *s = (struct nouveau_surface) {
  45                 .layout = layout,
  46                 .format = format,
  47                 .width = width,
  48                 .height = height,
  49                 .cpp = cpp,
  50                 .pitch = _mesa_format_row_stride(format, width),
  51         };
  52
  53         if (layout == TILED) {
  54                 s->pitch = align(s->pitch, 256);
  55                 config.nv04.surf_pitch = s->pitch;
  56
  57                 if (cpp == 4)
  58                         config.nv04.surf_flags = NV04_BO_32BPP;
  59                 else if (cpp == 2)
  60                         config.nv04.surf_flags = NV04_BO_16BPP;
  61
  62                 if (_mesa_get_format_bits(format, GL_DEPTH_BITS))
  63                         config.nv04.surf_flags |= NV04_BO_ZETA;
  64
  65         } else {
  66                 s->pitch = align(s->pitch, 64);
  67         }
  68
  69         ret = nouveau_bo_new(context_dev(ctx), flags, 0,
  70                              get_format_blocksy(format, height) * s->pitch,
  71                              &config, &s->bo);
  72         assert(!ret);
  73 }
  74
  75 void
  76 nouveau_surface_ref(struct nouveau_surface *src,
  77                     struct nouveau_surface *dst)
  78 {
  79         if (src) {
  80                 dst->offset = src->offset;
  81                 dst->layout = src->layout;
  82                 dst->format = src->format;
  83                 dst->width = src->width;
  84                 dst->height = src->height;
  85                 dst->cpp = src->cpp;
  86                 dst->pitch = src->pitch;
  87                 nouveau_bo_ref(src->bo, &dst->bo);
  88
  89         } else {
  90                 nouveau_bo_ref(NULL, &dst->bo);
  91         }
  92 }