src/gallium/drivers/cell/ppu/cell_screen.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "util/u_memory.h"
  30 #include "pipe/p_winsys.h"
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_screen.h"
  33
  34 #include "cell/common.h"
  35 #include "cell_screen.h"
  36 #include "cell_texture.h"
  37 #include "cell_winsys.h"
  38
  39
  40 static const char *
  41 cell_get_vendor(struct pipe_screen *screen)
  42 {
  43    return "Tungsten Graphics, Inc.";
  44 }
  45
  46
  47 static const char *
  48 cell_get_name(struct pipe_screen *screen)
  49 {
  50    return "Cell";
  51 }
  52
  53
  54 static int
  55 cell_get_param(struct pipe_screen *screen, int param)
  56 {
  57    switch (param) {
  58    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  59       return CELL_MAX_SAMPLERS;
  60    case PIPE_CAP_NPOT_TEXTURES:
  61       return 1;
  62    case PIPE_CAP_TWO_SIDED_STENCIL:
  63       return 1;
  64    case PIPE_CAP_GLSL:
  65       return 1;
  66    case PIPE_CAP_S3TC:
  67       return 0;
  68    case PIPE_CAP_ANISOTROPIC_FILTER:
  69       return 0;
  70    case PIPE_CAP_POINT_SPRITE:
  71       return 1;
  72    case PIPE_CAP_MAX_RENDER_TARGETS:
  73       return 1;
  74    case PIPE_CAP_OCCLUSION_QUERY:
  75       return 1;
  76    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  77       return 10;
  78    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  79       return CELL_MAX_TEXTURE_LEVELS;
  80    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  81       return 8;  /* max 128x128x128 */
  82    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  83       return CELL_MAX_TEXTURE_LEVELS;
  84    default:
  85       return 10;
  86    }
  87 }
  88
  89
  90 static float
  91 cell_get_paramf(struct pipe_screen *screen, int param)
  92 {
  93    switch (param) {
  94    case PIPE_CAP_MAX_LINE_WIDTH:
  95       /* fall-through */
  96    case PIPE_CAP_MAX_LINE_WIDTH_AA:
  97       return 255.0; /* arbitrary */
  98
  99    case PIPE_CAP_MAX_POINT_WIDTH:
 100       /* fall-through */
 101    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 102       return 255.0; /* arbitrary */
 103
 104    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 105       return 0.0;
 106
 107    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 108       return 16.0; /* arbitrary */
 109
 110    default:
 111       return 10;
 112    }
 113 }
 114
 115
 116 static boolean
 117 cell_is_format_supported( struct pipe_screen *screen,
 118                           enum pipe_format format,
 119                           enum pipe_texture_target target,
 120                           unsigned tex_usage,
 121                           unsigned geom_flags )
 122 {
 123    /* cell supports most formats, XXX for now anyway */
 124    if (format == PIPE_FORMAT_DXT5_RGBA ||
 125        format == PIPE_FORMAT_R8G8B8A8_SRGB)
 126       return FALSE;
 127    else
 128       return TRUE;
 129 }
 130
 131
 132 static void
 133 cell_destroy_screen( struct pipe_screen *screen )
 134 {
 135    struct pipe_winsys *winsys = screen->winsys;
 136
 137    if(winsys->destroy)
 138       winsys->destroy(winsys);
 139
 140    FREE(screen);
 141 }
 142
 143
 144 /**
 145  * Create a new pipe_screen object
 146  * Note: we're not presently subclassing pipe_screen (no cell_screen) but
 147  * that would be the place to put SPU thread/context info...
 148  */
 149 struct pipe_screen *
 150 cell_create_screen(struct pipe_winsys *winsys)
 151 {
 152    struct pipe_screen *screen = CALLOC_STRUCT(pipe_screen);
 153
 154    if (!screen)
 155       return NULL;
 156
 157    screen->winsys = winsys;
 158
 159    screen->destroy = cell_destroy_screen;
 160
 161    screen->get_name = cell_get_name;
 162    screen->get_vendor = cell_get_vendor;
 163    screen->get_param = cell_get_param;
 164    screen->get_paramf = cell_get_paramf;
 165    screen->is_format_supported = cell_is_format_supported;
 166
 167    cell_init_screen_texture_funcs(screen);
 168
 169    return screen;
 170 }