src/gallium/drivers/i965simple/brw_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 "util/u_string.h"
  32
  33 #include "brw_context.h"
  34 #include "brw_screen.h"
  35 #include "brw_tex_layout.h"
  36
  37
  38 static const char *
  39 brw_get_vendor( struct pipe_screen *screen )
  40 {
  41    return "Tungsten Graphics, Inc.";
  42 }
  43
  44
  45 static const char *
  46 brw_get_name( struct pipe_screen *screen )
  47 {
  48    static char buffer[128];
  49    const char *chipset;
  50
  51    switch (brw_screen(screen)->pci_id) {
  52    case PCI_CHIP_I965_Q:
  53       chipset = "Intel(R) 965Q";
  54       break;
  55    case PCI_CHIP_I965_G:
  56    case PCI_CHIP_I965_G_1:
  57       chipset = "Intel(R) 965G";
  58       break;
  59    case PCI_CHIP_I965_GM:
  60       chipset = "Intel(R) 965GM";
  61       break;
  62    case PCI_CHIP_I965_GME:
  63       chipset = "Intel(R) 965GME/GLE";
  64       break;
  65    default:
  66       chipset = "unknown";
  67       break;
  68    }
  69
  70    util_snprintf(buffer, sizeof(buffer), "i965 (chipset: %s)", chipset);
  71    return buffer;
  72 }
  73
  74
  75 static int
  76 brw_get_param(struct pipe_screen *screen, int param)
  77 {
  78    switch (param) {
  79    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  80       return 8;
  81    case PIPE_CAP_NPOT_TEXTURES:
  82       return 1;
  83    case PIPE_CAP_TWO_SIDED_STENCIL:
  84       return 1;
  85    case PIPE_CAP_GLSL:
  86       return 0;
  87    case PIPE_CAP_S3TC:
  88       return 0;
  89    case PIPE_CAP_ANISOTROPIC_FILTER:
  90       return 0;
  91    case PIPE_CAP_POINT_SPRITE:
  92       return 0;
  93    case PIPE_CAP_MAX_RENDER_TARGETS:
  94       return 1;
  95    case PIPE_CAP_OCCLUSION_QUERY:
  96       return 0;
  97    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  98       return 1;
  99    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 100       return 11; /* max 1024x1024 */
 101    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 102       return 8;  /* max 128x128x128 */
 103    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 104       return 11; /* max 1024x1024 */
 105    default:
 106       return 0;
 107    }
 108 }
 109
 110
 111 static float
 112 brw_get_paramf(struct pipe_screen *screen, int param)
 113 {
 114    switch (param) {
 115    case PIPE_CAP_MAX_LINE_WIDTH:
 116       /* fall-through */
 117    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 118       return 7.5;
 119
 120    case PIPE_CAP_MAX_POINT_WIDTH:
 121       /* fall-through */
 122    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 123       return 255.0;
 124
 125    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 126       return 4.0;
 127
 128    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 129       return 16.0;
 130
 131    default:
 132       return 0;
 133    }
 134 }
 135
 136
 137 static boolean
 138 brw_is_format_supported( struct pipe_screen *screen,
 139                          enum pipe_format format,
 140                          enum pipe_texture_target target,
 141                          unsigned tex_usage,
 142                          unsigned geom_flags )
 143 {
 144 #if 0
 145    /* XXX: This is broken -- rewrite if still needed. */
 146    static const unsigned tex_supported[] = {
 147       PIPE_FORMAT_R8G8B8A8_UNORM,
 148       PIPE_FORMAT_A8R8G8B8_UNORM,
 149       PIPE_FORMAT_R5G6B5_UNORM,
 150       PIPE_FORMAT_L8_UNORM,
 151       PIPE_FORMAT_A8_UNORM,
 152       PIPE_FORMAT_I8_UNORM,
 153       PIPE_FORMAT_L8A8_UNORM,
 154       PIPE_FORMAT_YCBCR,
 155       PIPE_FORMAT_YCBCR_REV,
 156       PIPE_FORMAT_S8_Z24,
 157    };
 158
 159
 160    /* Actually a lot more than this - add later:
 161     */
 162    static const unsigned render_supported[] = {
 163       PIPE_FORMAT_A8R8G8B8_UNORM,
 164       PIPE_FORMAT_R5G6B5_UNORM,
 165    };
 166
 167    /*
 168     */
 169    static const unsigned z_stencil_supported[] = {
 170       PIPE_FORMAT_Z16_UNORM,
 171       PIPE_FORMAT_Z32_UNORM,
 172       PIPE_FORMAT_S8Z24_UNORM,
 173    };
 174
 175    switch (type) {
 176    case PIPE_RENDER_FORMAT:
 177       *numFormats = Elements(render_supported);
 178       return render_supported;
 179
 180    case PIPE_TEX_FORMAT:
 181       *numFormats = Elements(tex_supported);
 182       return render_supported;
 183
 184    case PIPE_Z_STENCIL_FORMAT:
 185       *numFormats = Elements(render_supported);
 186       return render_supported;
 187
 188    default:
 189       *numFormats = 0;
 190       return NULL;
 191    }
 192 #else
 193    switch (format) {
 194    case PIPE_FORMAT_A8R8G8B8_UNORM:
 195    case PIPE_FORMAT_R5G6B5_UNORM:
 196    case PIPE_FORMAT_S8Z24_UNORM:
 197       return TRUE;
 198    default:
 199       return FALSE;
 200    };
 201    return FALSE;
 202 #endif
 203 }
 204
 205
 206 static void
 207 brw_destroy_screen( struct pipe_screen *screen )
 208 {
 209    struct pipe_winsys *winsys = screen->winsys;
 210
 211    if(winsys->destroy)
 212       winsys->destroy(winsys);
 213
 214    FREE(screen);
 215 }
 216
 217
 218 /**
 219  * Create a new brw_screen object
 220  */
 221 struct pipe_screen *
 222 brw_create_screen(struct pipe_winsys *winsys, uint pci_id)
 223 {
 224    struct brw_screen *brwscreen = CALLOC_STRUCT(brw_screen);
 225
 226    if (!brwscreen)
 227       return NULL;
 228
 229    brwscreen->pci_id = pci_id;
 230
 231    brwscreen->screen.winsys = winsys;
 232
 233    brwscreen->screen.destroy = brw_destroy_screen;
 234
 235    brwscreen->screen.get_name = brw_get_name;
 236    brwscreen->screen.get_vendor = brw_get_vendor;
 237    brwscreen->screen.get_param = brw_get_param;
 238    brwscreen->screen.get_paramf = brw_get_paramf;
 239    brwscreen->screen.is_format_supported = brw_is_format_supported;
 240
 241    brw_init_screen_texture_funcs(&brwscreen->screen);
 242
 243    return &brwscreen->screen;
 244 }