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_format.h"
  35 #include "ir3_compiler.h"
  36
  37 static boolean
  38 fd4_screen_is_format_supported(struct pipe_screen *pscreen,
  39                 enum pipe_format format,
  40                 enum pipe_texture_target target,
  41                 unsigned sample_count,
  42                 unsigned usage)
  43 {
  44         unsigned retval = 0;
  45
  46         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
  47                         (sample_count > 1) || /* TODO add MSAA */
  48                         !util_format_is_supported(format, usage)) {
  49                 DBG("not supported: format=%s, target=%d, sample_count=%d, usage=%x",
  50                                 util_format_name(format), target, sample_count, usage);
  51                 return FALSE;
  52         }
  53
  54         if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
  55                         (fd4_pipe2vtx(format) != (enum a4xx_vtx_fmt)~0)) {
  56                 retval |= PIPE_BIND_VERTEX_BUFFER;
  57         }
  58
  59         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
  60                         (target == PIPE_BUFFER ||
  61                          util_format_get_blocksize(format) != 12) &&
  62                         (fd4_pipe2tex(format) != (enum a4xx_tex_fmt)~0)) {
  63                 retval |= PIPE_BIND_SAMPLER_VIEW;
  64         }
  65
  66         if ((usage & (PIPE_BIND_RENDER_TARGET |
  67                                 PIPE_BIND_DISPLAY_TARGET |
  68                                 PIPE_BIND_SCANOUT |
  69                                 PIPE_BIND_SHARED)) &&
  70                         (fd4_pipe2color(format) != (enum a4xx_color_fmt)~0) &&
  71                         (fd4_pipe2tex(format) != (enum a4xx_tex_fmt)~0)) {
  72                 retval |= usage & (PIPE_BIND_RENDER_TARGET |
  73                                 PIPE_BIND_DISPLAY_TARGET |
  74                                 PIPE_BIND_SCANOUT |
  75                                 PIPE_BIND_SHARED);
  76         }
  77
  78         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
  79                         (fd4_pipe2depth(format) != (enum a4xx_depth_format)~0) &&
  80                         (fd4_pipe2tex(format) != (enum a4xx_tex_fmt)~0)) {
  81                 retval |= PIPE_BIND_DEPTH_STENCIL;
  82         }
  83
  84         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
  85                         (fd_pipe2index(format) != (enum pc_di_index_size)~0)) {
  86                 retval |= PIPE_BIND_INDEX_BUFFER;
  87         }
  88
  89         if (retval != usage) {
  90                 DBG("not supported: format=%s, target=%d, sample_count=%d, "
  91                                 "usage=%x, retval=%x", util_format_name(format),
  92                                 target, sample_count, usage, retval);
  93         }
  94
  95         return retval == usage;
  96 }
  97
  98 void
  99 fd4_screen_init(struct pipe_screen *pscreen)
 100 {
 101         struct fd_screen *screen = fd_screen(pscreen);
 102         screen->max_rts = A4XX_MAX_RENDER_TARGETS;
 103         screen->compiler = ir3_compiler_create(screen->dev, screen->gpu_id);
 104         pscreen->context_create = fd4_context_create;
 105         pscreen->is_format_supported = fd4_screen_is_format_supported;
 106 }