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 storage_sample_count,
  43                 unsigned usage)
  44 {
  45         unsigned retval = 0;
  46
  47         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
  48                         (sample_count > 1)) { /* TODO add MSAA */
  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 (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
  55                 return false;
  56
  57         if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
  58                         (fd4_pipe2vtx(format) != (enum a4xx_vtx_fmt)~0)) {
  59                 retval |= PIPE_BIND_VERTEX_BUFFER;
  60         }
  61
  62         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
  63                         (target == PIPE_BUFFER ||
  64                          util_format_get_blocksize(format) != 12) &&
  65                         (fd4_pipe2tex(format) != (enum a4xx_tex_fmt)~0)) {
  66                 retval |= PIPE_BIND_SAMPLER_VIEW;
  67         }
  68
  69         if ((usage & (PIPE_BIND_RENDER_TARGET |
  70                                 PIPE_BIND_DISPLAY_TARGET |
  71                                 PIPE_BIND_SCANOUT |
  72                                 PIPE_BIND_SHARED)) &&
  73                         (fd4_pipe2color(format) != (enum a4xx_color_fmt)~0) &&
  74                         (fd4_pipe2tex(format) != (enum a4xx_tex_fmt)~0)) {
  75                 retval |= usage & (PIPE_BIND_RENDER_TARGET |
  76                                 PIPE_BIND_DISPLAY_TARGET |
  77                                 PIPE_BIND_SCANOUT |
  78                                 PIPE_BIND_SHARED);
  79         }
  80
  81         /* For ARB_framebuffer_no_attachments: */
  82         if ((usage & PIPE_BIND_RENDER_TARGET) && (format == PIPE_FORMAT_NONE)) {
  83                 retval |= usage & PIPE_BIND_RENDER_TARGET;
  84         }
  85
  86         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
  87                         (fd4_pipe2depth(format) != (enum a4xx_depth_format)~0) &&
  88                         (fd4_pipe2tex(format) != (enum a4xx_tex_fmt)~0)) {
  89                 retval |= PIPE_BIND_DEPTH_STENCIL;
  90         }
  91
  92         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
  93                         (fd_pipe2index(format) != (enum pc_di_index_size)~0)) {
  94                 retval |= PIPE_BIND_INDEX_BUFFER;
  95         }
  96
  97         if (retval != usage) {
  98                 DBG("not supported: format=%s, target=%d, sample_count=%d, "
  99                                 "usage=%x, retval=%x", util_format_name(format),
 100                                 target, sample_count, usage, retval);
 101         }
 102
 103         return retval == usage;
 104 }
 105
 106 void
 107 fd4_screen_init(struct pipe_screen *pscreen)
 108 {
 109         struct fd_screen *screen = fd_screen(pscreen);
 110         screen->max_rts = A4XX_MAX_RENDER_TARGETS;
 111         screen->compiler = ir3_compiler_create(screen->dev, screen->gpu_id);
 112         pscreen->context_create = fd4_context_create;
 113         pscreen->is_format_supported = fd4_screen_is_format_supported;
 114 }