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

   1 /*
   2  * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #include "pipe/p_screen.h"
  28 #include "util/format/u_format.h"
  29
  30 #include "fd4_screen.h"
  31 #include "fd4_context.h"
  32 #include "fd4_emit.h"
  33 #include "fd4_format.h"
  34 #include "fd4_resource.h"
  35
  36 #include "ir3/ir3_compiler.h"
  37
  38 static bool
  39 fd4_screen_is_format_supported(struct pipe_screen *pscreen,
  40                 enum pipe_format format,
  41                 enum pipe_texture_target target,
  42                 unsigned sample_count,
  43                 unsigned storage_sample_count,
  44                 unsigned usage)
  45 {
  46         unsigned retval = 0;
  47
  48         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
  49                         (sample_count > 1)) { /* TODO add MSAA */
  50                 DBG("not supported: format=%s, target=%d, sample_count=%d, usage=%x",
  51                                 util_format_name(format), target, sample_count, usage);
  52                 return false;
  53         }
  54
  55         if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
  56                 return false;
  57
  58         if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
  59                         (fd4_pipe2vtx(format) != VFMT4_NONE)) {
  60                 retval |= PIPE_BIND_VERTEX_BUFFER;
  61         }
  62
  63         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
  64                         (fd4_pipe2tex(format) != TFMT4_NONE) &&
  65                         (target == PIPE_BUFFER ||
  66                          util_format_get_blocksize(format) != 12)) {
  67                 retval |= PIPE_BIND_SAMPLER_VIEW;
  68         }
  69
  70         if ((usage & (PIPE_BIND_RENDER_TARGET |
  71                                 PIPE_BIND_DISPLAY_TARGET |
  72                                 PIPE_BIND_SCANOUT |
  73                                 PIPE_BIND_SHARED)) &&
  74                         (fd4_pipe2color(format) != RB4_NONE) &&
  75                         (fd4_pipe2tex(format) != TFMT4_NONE)) {
  76                 retval |= usage & (PIPE_BIND_RENDER_TARGET |
  77                                 PIPE_BIND_DISPLAY_TARGET |
  78                                 PIPE_BIND_SCANOUT |
  79                                 PIPE_BIND_SHARED);
  80         }
  81
  82         /* For ARB_framebuffer_no_attachments: */
  83         if ((usage & PIPE_BIND_RENDER_TARGET) && (format == PIPE_FORMAT_NONE)) {
  84                 retval |= usage & PIPE_BIND_RENDER_TARGET;
  85         }
  86
  87         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
  88                         (fd4_pipe2depth(format) != (enum a4xx_depth_format)~0) &&
  89                         (fd4_pipe2tex(format) != TFMT4_NONE)) {
  90                 retval |= PIPE_BIND_DEPTH_STENCIL;
  91         }
  92
  93         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
  94                         (fd_pipe2index(format) != (enum pc_di_index_size)~0)) {
  95                 retval |= PIPE_BIND_INDEX_BUFFER;
  96         }
  97
  98         if (retval != usage) {
  99                 DBG("not supported: format=%s, target=%d, sample_count=%d, "
 100                                 "usage=%x, retval=%x", util_format_name(format),
 101                                 target, sample_count, usage, retval);
 102         }
 103
 104         return retval == usage;
 105 }
 106
 107 void
 108 fd4_screen_init(struct pipe_screen *pscreen)
 109 {
 110         struct fd_screen *screen = fd_screen(pscreen);
 111         screen->max_rts = A4XX_MAX_RENDER_TARGETS;
 112         screen->compiler = ir3_compiler_create(screen->dev, screen->gpu_id);
 113         screen->setup_slices = fd4_setup_slices;
 114         pscreen->context_create = fd4_context_create;
 115         pscreen->is_format_supported = fd4_screen_is_format_supported;
 116         fd4_emit_init_screen(pscreen);
 117         ir3_screen_init(pscreen);
 118 }