src/gallium/drivers/freedreno/a4xx/fd4_screen.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #include "pipe/p_screen.h"
  30 #include "util/u_format.h"
  31
  32 #include "fd4_screen.h"
  33 #include "fd4_context.h"
  34 #include "fd4_util.h"
  35
  36 static boolean
  37 fd4_screen_is_format_supported(struct pipe_screen *pscreen,
  38                 enum pipe_format format,
  39                 enum pipe_texture_target target,
  40                 unsigned sample_count,
  41                 unsigned usage)
  42 {
  43         unsigned retval = 0;
  44
  45         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
  46                         (sample_count > 1) || /* TODO add MSAA */
  47                         !util_format_is_supported(format, usage)) {
  48                 DBG("not supported: format=%s, target=%d, sample_count=%d, usage=%x",
  49                                 util_format_name(format), target, sample_count, usage);
  50                 return FALSE;
  51         }
  52
  53         if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
  54                         (fd4_pipe2vtx(format) != ~0)) {
  55                 retval |= PIPE_BIND_VERTEX_BUFFER;
  56         }
  57
  58         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
  59                         (fd4_pipe2tex(format) != ~0)) {
  60                 retval |= PIPE_BIND_SAMPLER_VIEW;
  61         }
  62
  63         if ((usage & (PIPE_BIND_RENDER_TARGET |
  64                                 PIPE_BIND_DISPLAY_TARGET |
  65                                 PIPE_BIND_SCANOUT |
  66                                 PIPE_BIND_SHARED)) &&
  67                         (fd4_pipe2color(format) != ~0) &&
  68                         (fd4_pipe2tex(format) != ~0)) {
  69                 retval |= usage & (PIPE_BIND_RENDER_TARGET |
  70                                 PIPE_BIND_DISPLAY_TARGET |
  71                                 PIPE_BIND_SCANOUT |
  72                                 PIPE_BIND_SHARED);
  73         }
  74
  75         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
  76                         (fd_pipe2depth(format) != ~0) &&
  77                         (fd4_pipe2tex(format) != ~0)) {
  78                 retval |= PIPE_BIND_DEPTH_STENCIL;
  79         }
  80
  81         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
  82                         (fd_pipe2index(format) != ~0)) {
  83                 retval |= PIPE_BIND_INDEX_BUFFER;
  84         }
  85
  86         if (usage & PIPE_BIND_TRANSFER_READ)
  87                 retval |= PIPE_BIND_TRANSFER_READ;
  88         if (usage & PIPE_BIND_TRANSFER_WRITE)
  89                 retval |= PIPE_BIND_TRANSFER_WRITE;
  90
  91         if (retval != usage) {
  92                 DBG("not supported: format=%s, target=%d, sample_count=%d, "
  93                                 "usage=%x, retval=%x", util_format_name(format),
  94                                 target, sample_count, usage, retval);
  95         }
  96
  97         return retval == usage;
  98 }
  99
 100 void
 101 fd4_screen_init(struct pipe_screen *pscreen)
 102 {
 103         pscreen->context_create = fd4_context_create;
 104         pscreen->is_format_supported = fd4_screen_is_format_supported;
 105 }