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 "util/u_simple_screen.h"
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_screen.h"
  33
  34 #include "cell/common.h"
  35 #include "cell_context.h"
  36 #include "cell_screen.h"
  37 #include "cell_texture.h"
  38 #include "cell_winsys.h"
  39
  40
  41 static const char *
  42 cell_get_vendor(struct pipe_screen *screen)
  43 {
  44    return "VMware, Inc.";
  45 }
  46
  47
  48 static const char *
  49 cell_get_name(struct pipe_screen *screen)
  50 {
  51    return "Cell";
  52 }
  53
  54
  55 static int
  56 cell_get_param(struct pipe_screen *screen, int param)
  57 {
  58    switch (param) {
  59    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  60       return CELL_MAX_SAMPLERS;
  61    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
  62       return CELL_MAX_SAMPLERS;
  63    case PIPE_CAP_NPOT_TEXTURES:
  64       return 1;
  65    case PIPE_CAP_TWO_SIDED_STENCIL:
  66       return 1;
  67    case PIPE_CAP_GLSL:
  68       return 1;
  69    case PIPE_CAP_ANISOTROPIC_FILTER:
  70       return 0;
  71    case PIPE_CAP_POINT_SPRITE:
  72       return 1;
  73    case PIPE_CAP_MAX_RENDER_TARGETS:
  74       return 1;
  75    case PIPE_CAP_OCCLUSION_QUERY:
  76       return 1;
  77    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  78       return 10;
  79    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  80       return CELL_MAX_TEXTURE_LEVELS;
  81    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  82       return 8;  /* max 128x128x128 */
  83    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  84       return CELL_MAX_TEXTURE_LEVELS;
  85    case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
  86       return 1; /* XXX not really true */
  87    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
  88       return 0; /* XXX to do */
  89    case PIPE_CAP_TGSI_CONT_SUPPORTED:
  90       return 1;
  91    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
  92    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
  93       return 1;
  94    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
  95    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
  96       return 0;
  97    default:
  98       return 0;
  99    }
 100 }
 101
 102
 103 static float
 104 cell_get_paramf(struct pipe_screen *screen, int param)
 105 {
 106    switch (param) {
 107    case PIPE_CAP_MAX_LINE_WIDTH:
 108       /* fall-through */
 109    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 110       return 255.0; /* arbitrary */
 111
 112    case PIPE_CAP_MAX_POINT_WIDTH:
 113       /* fall-through */
 114    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 115       return 255.0; /* arbitrary */
 116
 117    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 118       return 0.0;
 119
 120    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 121       return 16.0; /* arbitrary */
 122
 123    default:
 124       return 0;
 125    }
 126 }
 127
 128
 129 static boolean
 130 cell_is_format_supported( struct pipe_screen *screen,
 131                           enum pipe_format format,
 132                           enum pipe_texture_target target,
 133                           unsigned tex_usage,
 134                           unsigned geom_flags )
 135 {
 136    /* cell supports most formats, XXX for now anyway */
 137    if (format == PIPE_FORMAT_DXT5_RGBA ||
 138        format == PIPE_FORMAT_A8B8G8R8_SRGB)
 139       return FALSE;
 140    else
 141       return TRUE;
 142 }
 143
 144
 145 static void
 146 cell_destroy_screen( struct pipe_screen *screen )
 147 {
 148    struct pipe_winsys *winsys = screen->winsys;
 149
 150    if(winsys->destroy)
 151       winsys->destroy(winsys);
 152
 153    FREE(screen);
 154 }
 155
 156
 157 /**
 158  * Create a new pipe_screen object
 159  * Note: we're not presently subclassing pipe_screen (no cell_screen) but
 160  * that would be the place to put SPU thread/context info...
 161  */
 162 struct pipe_screen *
 163 cell_create_screen(struct pipe_winsys *winsys)
 164 {
 165    struct pipe_screen *screen = CALLOC_STRUCT(pipe_screen);
 166
 167    if (!screen)
 168       return NULL;
 169
 170    screen->winsys = winsys;
 171
 172    screen->destroy = cell_destroy_screen;
 173
 174    screen->get_name = cell_get_name;
 175    screen->get_vendor = cell_get_vendor;
 176    screen->get_param = cell_get_param;
 177    screen->get_paramf = cell_get_paramf;
 178    screen->is_format_supported = cell_is_format_supported;
 179    screen->context_create = cell_create_context;
 180
 181    cell_init_screen_texture_funcs(screen);
 182    u_simple_screen_init(screen);
 183
 184    return screen;
 185 }