src/gallium/drivers/nv30/nv30_surface.c

   1
   2 /**************************************************************************
   3  *
   4  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 #include "nv30_context.h"
  30 #include "pipe/p_defines.h"
  31 #include "pipe/p_util.h"
  32 #include "pipe/p_winsys.h"
  33 #include "pipe/p_inlines.h"
  34 #include "util/p_tile.h"
  35
  36 static boolean
  37 nv30_surface_format_supported(struct pipe_context *pipe,
  38                               enum pipe_format format, uint type)
  39 {
  40         switch (type) {
  41         case PIPE_SURFACE:
  42                 switch (format) {
  43                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  44                 case PIPE_FORMAT_R5G6B5_UNORM:
  45                 case PIPE_FORMAT_Z24S8_UNORM:
  46                 case PIPE_FORMAT_Z16_UNORM:
  47                         return TRUE;
  48                 default:
  49                         break;
  50                 }
  51                 break;
  52         case PIPE_TEXTURE:
  53                 switch (format) {
  54                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  55                 case PIPE_FORMAT_A1R5G5B5_UNORM:
  56                 case PIPE_FORMAT_A4R4G4B4_UNORM:
  57                 case PIPE_FORMAT_R5G6B5_UNORM:
  58                 case PIPE_FORMAT_U_L8:
  59                 case PIPE_FORMAT_U_A8:
  60                 case PIPE_FORMAT_U_I8:
  61                 case PIPE_FORMAT_U_A8_L8:
  62                 case PIPE_FORMAT_Z16_UNORM:
  63                 case PIPE_FORMAT_Z24S8_UNORM:
  64                         return TRUE;
  65                 default:
  66                         break;
  67                 }
  68                 break;
  69         default:
  70                 assert(0);
  71         };
  72
  73         return FALSE;
  74 }
  75
  76 static struct pipe_surface *
  77 nv30_get_tex_surface(struct pipe_context *pipe, struct pipe_texture *pt,
  78                      unsigned face, unsigned level, unsigned zslice)
  79 {
  80         struct pipe_winsys *ws = pipe->winsys;
  81         struct nv30_miptree *nv30mt = (struct nv30_miptree *)pt;
  82         struct pipe_surface *ps;
  83
  84         ps = ws->surface_alloc(ws);
  85         if (!ps)
  86                 return NULL;
  87         pipe_buffer_reference(ws, &ps->buffer, nv30mt->buffer);
  88         ps->format = pt->format;
  89         ps->cpp = pt->cpp;
  90         ps->width = pt->width[level];
  91         ps->height = pt->height[level];
  92         ps->pitch = nv30mt->level[level].pitch / ps->cpp;
  93
  94         if (pt->target == PIPE_TEXTURE_CUBE) {
  95                 ps->offset = nv30mt->level[level].image_offset[face];
  96         } else
  97         if (pt->target == PIPE_TEXTURE_3D) {
  98                 ps->offset = nv30mt->level[level].image_offset[zslice];
  99         } else {
 100                 ps->offset = nv30mt->level[level].image_offset[0];
 101         }
 102
 103         return ps;
 104 }
 105
 106 static void
 107 nv30_surface_copy(struct pipe_context *pipe, unsigned do_flip,
 108                   struct pipe_surface *dest, unsigned destx, unsigned desty,
 109                   struct pipe_surface *src, unsigned srcx, unsigned srcy,
 110                   unsigned width, unsigned height)
 111 {
 112         struct nv30_context *nv30 = nv30_context(pipe);
 113         struct nouveau_winsys *nvws = nv30->nvws;
 114
 115         nvws->surface_copy(nvws, dest, destx, desty, src, srcx, srcy,
 116                            width, height);
 117 }
 118
 119 static void
 120 nv30_surface_fill(struct pipe_context *pipe, struct pipe_surface *dest,
 121                   unsigned destx, unsigned desty, unsigned width,
 122                   unsigned height, unsigned value)
 123 {
 124         struct nv30_context *nv30 = nv30_context(pipe);
 125         struct nouveau_winsys *nvws = nv30->nvws;
 126
 127         nvws->surface_fill(nvws, dest, destx, desty, width, height, value);
 128 }
 129
 130 void
 131 nv30_init_surface_functions(struct nv30_context *nv30)
 132 {
 133         nv30->pipe.is_format_supported = nv30_surface_format_supported;
 134         nv30->pipe.get_tex_surface = nv30_get_tex_surface;
 135         nv30->pipe.surface_copy = nv30_surface_copy;
 136         nv30->pipe.surface_fill = nv30_surface_fill;
 137 }