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 "pipe/p_util.h"
  30 #include "pipe/p_winsys.h"
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_screen.h"
  33
  34 #include "cell_screen.h"
  35 #include "cell_texture.h"
  36 #include "cell_winsys.h"
  37
  38
  39 static const char *
  40 cell_get_vendor(struct pipe_screen *screen)
  41 {
  42    return "Tungsten Graphics, Inc.";
  43 }
  44
  45
  46 static const char *
  47 cell_get_name(struct pipe_screen *screen)
  48 {
  49    return "Cell";
  50 }
  51
  52
  53 static int
  54 cell_get_param(struct pipe_screen *screen, int param)
  55 {
  56    switch (param) {
  57    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  58       return PIPE_MAX_SAMPLERS;
  59    case PIPE_CAP_NPOT_TEXTURES:
  60       return 0;
  61    case PIPE_CAP_TWO_SIDED_STENCIL:
  62       return 0;
  63    case PIPE_CAP_GLSL:
  64       return 1;
  65    case PIPE_CAP_S3TC:
  66       return 0;
  67    case PIPE_CAP_ANISOTROPIC_FILTER:
  68       return 0;
  69    case PIPE_CAP_POINT_SPRITE:
  70       return 0;
  71    case PIPE_CAP_MAX_RENDER_TARGETS:
  72       return 1;
  73    case PIPE_CAP_OCCLUSION_QUERY:
  74       return 0;
  75    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  76       return 0;
  77    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  78       return 12; /* max 2Kx2K */
  79    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  80       return 8;  /* max 128x128x128 */
  81    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  82       return 12; /* max 2Kx2K */
  83    default:
  84       return 0;
  85    }
  86 }
  87
  88
  89 static float
  90 cell_get_paramf(struct pipe_screen *screen, int param)
  91 {
  92    switch (param) {
  93    case PIPE_CAP_MAX_LINE_WIDTH:
  94       /* fall-through */
  95    case PIPE_CAP_MAX_LINE_WIDTH_AA:
  96       return 255.0; /* arbitrary */
  97
  98    case PIPE_CAP_MAX_POINT_WIDTH:
  99       /* fall-through */
 100    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 101       return 255.0; /* arbitrary */
 102
 103    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 104       return 0.0;
 105
 106    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 107       return 16.0; /* arbitrary */
 108
 109    default:
 110       return 0;
 111    }
 112 }
 113
 114
 115 static boolean
 116 cell_is_format_supported( struct pipe_screen *screen,
 117                           enum pipe_format format, uint type )
 118 {
 119    switch (type) {
 120    case PIPE_TEXTURE:
 121       /* cell supports most texture formats, XXX for now anyway */
 122       if (format == PIPE_FORMAT_DXT5_RGBA ||
 123           format == PIPE_FORMAT_R8G8B8A8_SRGB)
 124          return FALSE;
 125       else
 126          return TRUE;
 127    case PIPE_SURFACE:
 128       /* cell supports all (off-screen) surface formats, XXX for now */
 129       return TRUE;
 130    default:
 131       assert(0);
 132       return FALSE;
 133    }
 134 }
 135
 136
 137 static void
 138 cell_destroy_screen( struct pipe_screen *screen )
 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 }