src/gallium/drivers/freedreno/a6xx/fd6_screen.c

   1 /*
   2  * Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
   3  * Copyright © 2018 Google, Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  * Authors:
  25  *    Rob Clark <robclark@freedesktop.org>
  26  */
  27
  28 #include "pipe/p_screen.h"
  29 #include "util/u_format.h"
  30
  31 #include "fd6_screen.h"
  32 #include "fd6_blitter.h"
  33 #include "fd6_context.h"
  34 #include "fd6_format.h"
  35 #include "fd6_resource.h"
  36
  37 #include "ir3/ir3_compiler.h"
  38
  39 static bool
  40 valid_sample_count(unsigned sample_count)
  41 {
  42         switch (sample_count) {
  43         case 0:
  44         case 1:
  45         case 2:
  46         case 4:
  47 // TODO seems 8x works, but increases lrz width or height.. but the
  48 // blob I have doesn't seem to expose any egl configs w/ 8x, so
  49 // just hide it for now and revisit later.
  50 //      case 8:
  51                 return true;
  52         default:
  53                 return false;
  54         }
  55 }
  56
  57 static boolean
  58 fd6_screen_is_format_supported(struct pipe_screen *pscreen,
  59                 enum pipe_format format,
  60                 enum pipe_texture_target target,
  61                 unsigned sample_count,
  62                 unsigned storage_sample_count,
  63                 unsigned usage)
  64 {
  65         unsigned retval = 0;
  66
  67         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
  68                         !valid_sample_count(sample_count)) {
  69                 DBG("not supported: format=%s, target=%d, sample_count=%d, usage=%x",
  70                                 util_format_name(format), target, sample_count, usage);
  71                 return FALSE;
  72         }
  73
  74         if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
  75                 return false;
  76
  77         if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
  78                         (fd6_pipe2vtx(format) != (enum a6xx_vtx_fmt)~0)) {
  79                 retval |= PIPE_BIND_VERTEX_BUFFER;
  80         }
  81
  82         if ((usage & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_SHADER_IMAGE)) &&
  83                         (target == PIPE_BUFFER ||
  84                          util_format_get_blocksize(format) != 12) &&
  85                         (fd6_pipe2tex(format) != (enum a6xx_tex_fmt)~0)) {
  86                 retval |= usage & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_SHADER_IMAGE);
  87         }
  88
  89         if ((usage & (PIPE_BIND_RENDER_TARGET |
  90                                 PIPE_BIND_DISPLAY_TARGET |
  91                                 PIPE_BIND_SCANOUT |
  92                                 PIPE_BIND_SHARED |
  93                                 PIPE_BIND_COMPUTE_RESOURCE)) &&
  94                         (fd6_pipe2color(format) != (enum a6xx_color_fmt)~0) &&
  95                         (fd6_pipe2tex(format) != (enum a6xx_tex_fmt)~0)) {
  96                 retval |= usage & (PIPE_BIND_RENDER_TARGET |
  97                                 PIPE_BIND_DISPLAY_TARGET |
  98                                 PIPE_BIND_SCANOUT |
  99                                 PIPE_BIND_SHARED |
 100                                 PIPE_BIND_COMPUTE_RESOURCE);
 101         }
 102
 103         /* For ARB_framebuffer_no_attachments: */
 104         if ((usage & PIPE_BIND_RENDER_TARGET) && (format == PIPE_FORMAT_NONE)) {
 105                 retval |= usage & PIPE_BIND_RENDER_TARGET;
 106         }
 107
 108         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 109                         (fd6_pipe2depth(format) != (enum a6xx_depth_format)~0) &&
 110                         (fd6_pipe2tex(format) != (enum a6xx_tex_fmt)~0)) {
 111                 retval |= PIPE_BIND_DEPTH_STENCIL;
 112         }
 113
 114         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 115                         (fd_pipe2index(format) != (enum pc_di_index_size)~0)) {
 116                 retval |= PIPE_BIND_INDEX_BUFFER;
 117         }
 118
 119         if (retval != usage) {
 120                 DBG("not supported: format=%s, target=%d, sample_count=%d, "
 121                                 "usage=%x, retval=%x", util_format_name(format),
 122                                 target, sample_count, usage, retval);
 123         }
 124
 125         return retval == usage;
 126 }
 127
 128 void
 129 fd6_screen_init(struct pipe_screen *pscreen)
 130 {
 131         struct fd_screen *screen = fd_screen(pscreen);
 132         screen->max_rts = A6XX_MAX_RENDER_TARGETS;
 133         screen->compiler = ir3_compiler_create(screen->dev, screen->gpu_id);
 134         pscreen->context_create = fd6_context_create;
 135         pscreen->is_format_supported = fd6_screen_is_format_supported;
 136
 137         screen->setup_slices = fd6_setup_slices;
 138         screen->tile_mode = fd6_tile_mode;
 139 }