src/gallium/drivers/freedreno/a5xx/fd5_screen.c

   1 /*
   2  * Copyright (C) 2016 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/u_format.h"
  29
  30 #include "fd5_screen.h"
  31 #include "fd5_context.h"
  32 #include "fd5_format.h"
  33 #include "ir3_compiler.h"
  34
  35 static boolean
  36 fd5_screen_is_format_supported(struct pipe_screen *pscreen,
  37                 enum pipe_format format,
  38                 enum pipe_texture_target target,
  39                 unsigned sample_count,
  40                 unsigned usage)
  41 {
  42         unsigned retval = 0;
  43
  44         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
  45                         (sample_count > 1) || /* TODO add MSAA */
  46                         !util_format_is_supported(format, usage)) {
  47                 DBG("not supported: format=%s, target=%d, sample_count=%d, usage=%x",
  48                                 util_format_name(format), target, sample_count, usage);
  49                 return FALSE;
  50         }
  51
  52         if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
  53                         (fd5_pipe2vtx(format) != (enum a5xx_vtx_fmt)~0)) {
  54                 retval |= PIPE_BIND_VERTEX_BUFFER;
  55         }
  56
  57         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
  58                         (target == PIPE_BUFFER ||
  59                          util_format_get_blocksize(format) != 12) &&
  60                         (fd5_pipe2tex(format) != (enum a5xx_tex_fmt)~0)) {
  61                 retval |= PIPE_BIND_SAMPLER_VIEW;
  62         }
  63
  64         if ((usage & (PIPE_BIND_RENDER_TARGET |
  65                                 PIPE_BIND_DISPLAY_TARGET |
  66                                 PIPE_BIND_SCANOUT |
  67                                 PIPE_BIND_SHARED)) &&
  68                         (fd5_pipe2color(format) != (enum a5xx_color_fmt)~0) &&
  69                         (fd5_pipe2tex(format) != (enum a5xx_tex_fmt)~0)) {
  70                 retval |= usage & (PIPE_BIND_RENDER_TARGET |
  71                                 PIPE_BIND_DISPLAY_TARGET |
  72                                 PIPE_BIND_SCANOUT |
  73                                 PIPE_BIND_SHARED);
  74         }
  75
  76         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
  77                         (fd5_pipe2depth(format) != (enum a5xx_depth_format)~0) &&
  78                         (fd5_pipe2tex(format) != (enum a5xx_tex_fmt)~0)) {
  79                 retval |= PIPE_BIND_DEPTH_STENCIL;
  80         }
  81
  82         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
  83                         (fd_pipe2index(format) != (enum pc_di_index_size)~0)) {
  84                 retval |= PIPE_BIND_INDEX_BUFFER;
  85         }
  86
  87         if (retval != usage) {
  88                 DBG("not supported: format=%s, target=%d, sample_count=%d, "
  89                                 "usage=%x, retval=%x", util_format_name(format),
  90                                 target, sample_count, usage, retval);
  91         }
  92
  93         return retval == usage;
  94 }
  95
  96 void
  97 fd5_screen_init(struct pipe_screen *pscreen)
  98 {
  99         struct fd_screen *screen = fd_screen(pscreen);
 100         screen->max_rts = A5XX_MAX_RENDER_TARGETS;
 101         screen->compiler = ir3_compiler_create(screen->dev, screen->gpu_id);
 102         pscreen->context_create = fd5_context_create;
 103         pscreen->is_format_supported = fd5_screen_is_format_supported;
 104 }