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  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. }
  93.