src/gallium/drivers/r600/r600_screen.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Jerome Glisse
  25  *      Corbin Simpson
  26  */
  27 #include <stdio.h>
  28 #include "util/u_inlines.h"
  29 #include "util/u_format.h"
  30 #include "util/u_memory.h"
  31 #include "r600_screen.h"
  32 #include "r600_context.h"
  33 #include "r600_public.h"
  34 #include "r600_resource.h"
  35 #include "r600_state_inlines.h"
  36
  37 static const char* r600_get_vendor(struct pipe_screen* pscreen)
  38 {
  39         return "X.Org";
  40 }
  41
  42 static const char* r600_get_name(struct pipe_screen* pscreen)
  43 {
  44         struct r600_screen *screen = r600_screen(pscreen);
  45         enum radeon_family family = radeon_get_family(screen->rw);
  46
  47         if (family >= CHIP_R600 && family < CHIP_RV770)
  48                 return "R600 (HD2XXX,HD3XXX)";
  49         else
  50                 return "R700 (HD4XXX)";
  51 }
  52
  53 static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
  54 {
  55         switch (param) {
  56         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  57         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
  58                 return 16;
  59         case PIPE_CAP_NPOT_TEXTURES:
  60                 return 1;
  61         case PIPE_CAP_TWO_SIDED_STENCIL:
  62                 return 1;
  63         case PIPE_CAP_GLSL:
  64                 return 1;
  65         case PIPE_CAP_DUAL_SOURCE_BLEND:
  66                 return 1;
  67         case PIPE_CAP_ANISOTROPIC_FILTER:
  68                 return 1;
  69         case PIPE_CAP_POINT_SPRITE:
  70                 return 1;
  71         case PIPE_CAP_MAX_RENDER_TARGETS:
  72                 /* FIXME some r6xx are buggy and can only do 4 */
  73                 return 8;
  74         case PIPE_CAP_OCCLUSION_QUERY:
  75                 return 1;
  76         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  77                 return 1;
  78         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  79         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  80         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  81                 /* FIXME not sure here */
  82                 return 13;
  83         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
  84                 return 1;
  85         case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
  86                 return 1;
  87         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
  88                 /* FIXME allow this once infrastructure is there */
  89                 return 0;
  90         case PIPE_CAP_TGSI_CONT_SUPPORTED:
  91                 return 0;
  92         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
  93                 return 1;
  94         case PIPE_CAP_SM3:
  95                 return 1;
  96         case PIPE_CAP_INDEP_BLEND_ENABLE:
  97                 return 1;
  98         case PIPE_CAP_INDEP_BLEND_FUNC:
  99                 /* FIXME allow this */
 100                 return 0;
 101         case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 102                 return 1;
 103         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 104         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 105                 return 1;
 106         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 107         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 108                 return 0;
 109         default:
 110                 R600_ERR("r600: unknown param %d\n", param);
 111                 return 0;
 112         }
 113 }
 114
 115 static float r600_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
 116 {
 117         switch (param) {
 118         case PIPE_CAP_MAX_LINE_WIDTH:
 119         case PIPE_CAP_MAX_LINE_WIDTH_AA:
 120         case PIPE_CAP_MAX_POINT_WIDTH:
 121         case PIPE_CAP_MAX_POINT_WIDTH_AA:
 122                 return 8192.0f;
 123         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 124                 return 16.0f;
 125         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 126                 return 16.0f;
 127         default:
 128                 R600_ERR("r600: unsupported paramf %d\n", param);
 129                 return 0.0f;
 130         }
 131 }
 132
 133 static boolean r600_is_format_supported(struct pipe_screen* screen,
 134                                         enum pipe_format format,
 135                                         enum pipe_texture_target target,
 136                                         unsigned sample_count,
 137                                         unsigned usage,
 138                                         unsigned geom_flags)
 139 {
 140         unsigned retval = 0;
 141         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 142                 R600_ERR("r600: unsupported texture type %d\n", target);
 143                 return FALSE;
 144         }
 145
 146         /* Multisample */
 147         if (sample_count > 1)
 148                 return FALSE;
 149
 150         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 151             r600_is_sampler_format_supported(format)) {
 152                 retval |= PIPE_BIND_SAMPLER_VIEW;
 153         }
 154
 155         if ((usage & (PIPE_BIND_RENDER_TARGET |
 156                   PIPE_BIND_DISPLAY_TARGET |
 157                   PIPE_BIND_SCANOUT |
 158                   PIPE_BIND_SHARED)) &&
 159             r600_is_colorbuffer_format_supported(format)) {
 160                 retval |= usage &
 161                         (PIPE_BIND_RENDER_TARGET |
 162                          PIPE_BIND_DISPLAY_TARGET |
 163                          PIPE_BIND_SCANOUT |
 164                          PIPE_BIND_SHARED);
 165         }
 166
 167         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 168             r600_is_zs_format_supported(format)) {
 169                 retval |= PIPE_BIND_DEPTH_STENCIL;
 170         }
 171
 172         if ((usage & PIPE_BIND_VERTEX_BUFFER) &&
 173             r600_is_vertex_format_supported(format))
 174                 retval |= PIPE_BIND_VERTEX_BUFFER;
 175
 176         if (usage & PIPE_BIND_TRANSFER_READ)
 177                 retval |= PIPE_BIND_TRANSFER_READ;
 178         if (usage & PIPE_BIND_TRANSFER_WRITE)
 179                 retval |= PIPE_BIND_TRANSFER_WRITE;
 180
 181         return retval == usage;
 182 }
 183
 184 static void r600_destroy_screen(struct pipe_screen* pscreen)
 185 {
 186         struct r600_screen* rscreen = r600_screen(pscreen);
 187
 188         if (rscreen == NULL)
 189                 return;
 190         FREE(rscreen);
 191 }
 192
 193 struct pipe_screen *r600_screen_create(struct radeon *rw)
 194 {
 195         struct r600_screen* rscreen;
 196
 197         rscreen = CALLOC_STRUCT(r600_screen);
 198         if (rscreen == NULL) {
 199                 return NULL;
 200         }
 201         rscreen->rw = rw;
 202         rscreen->screen.winsys = (struct pipe_winsys*)rw;
 203         rscreen->screen.destroy = r600_destroy_screen;
 204         rscreen->screen.get_name = r600_get_name;
 205         rscreen->screen.get_vendor = r600_get_vendor;
 206         rscreen->screen.get_param = r600_get_param;
 207         rscreen->screen.get_paramf = r600_get_paramf;
 208         rscreen->screen.is_format_supported = r600_is_format_supported;
 209         rscreen->screen.context_create = r600_create_context;
 210         r600_init_screen_texture_functions(&rscreen->screen);
 211         r600_init_screen_resource_functions(rscreen);
 212         return &rscreen->screen;
 213 }