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 "util/u_memory.h"
  30 #include "pipe/internal/p_winsys_screen.h"
  31 #include "util/u_string.h"
  32 #include "util/u_simple_screen.h"
  33
  34 #include "brw_context.h"
  35 #include "brw_screen.h"
  36 #include "brw_tex_layout.h"
  37
  38
  39 static const char *
  40 brw_get_vendor( struct pipe_screen *screen )
  41 {
  42    return "Tungsten Graphics, Inc.";
  43 }
  44
  45
  46 static const char *
  47 brw_get_name( struct pipe_screen *screen )
  48 {
  49    static char buffer[128];
  50    const char *chipset;
  51
  52    switch (brw_screen(screen)->pci_id) {
  53    case PCI_CHIP_I965_Q:
  54       chipset = "Intel(R) 965Q";
  55       break;
  56    case PCI_CHIP_I965_G:
  57    case PCI_CHIP_I965_G_1:
  58       chipset = "Intel(R) 965G";
  59       break;
  60    case PCI_CHIP_I965_GM:
  61       chipset = "Intel(R) 965GM";
  62       break;
  63    case PCI_CHIP_I965_GME:
  64       chipset = "Intel(R) 965GME/GLE";
  65       break;
  66    default:
  67       chipset = "unknown";
  68       break;
  69    }
  70
  71    util_snprintf(buffer, sizeof(buffer), "i965 (chipset: %s)", chipset);
  72    return buffer;
  73 }
  74
  75
  76 static int
  77 brw_get_param(struct pipe_screen *screen, int param)
  78 {
  79    switch (param) {
  80    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  81       return 8;
  82    case PIPE_CAP_NPOT_TEXTURES:
  83       return 1;
  84    case PIPE_CAP_TWO_SIDED_STENCIL:
  85       return 1;
  86    case PIPE_CAP_GLSL:
  87       return 0;
  88    case PIPE_CAP_S3TC:
  89       return 0;
  90    case PIPE_CAP_ANISOTROPIC_FILTER:
  91       return 0;
  92    case PIPE_CAP_POINT_SPRITE:
  93       return 0;
  94    case PIPE_CAP_MAX_RENDER_TARGETS:
  95       return 1;
  96    case PIPE_CAP_OCCLUSION_QUERY:
  97       return 0;
  98    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  99       return 1;
 100    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 101       return 11; /* max 1024x1024 */
 102    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 103       return 8;  /* max 128x128x128 */
 104    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 105       return 11; /* max 1024x1024 */
 106    default:
 107       return 0;
 108    }
 109 }
 110
 111
 112 static float
 113 brw_get_paramf(struct pipe_screen *screen, int param)
 114 {
 115    switch (param) {
 116    case PIPE_CAP_MAX_LINE_WIDTH:
 117       /* fall-through */
 118    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 119       return 7.5;
 120
 121    case PIPE_CAP_MAX_POINT_WIDTH:
 122       /* fall-through */
 123    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 124       return 255.0;
 125
 126    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 127       return 4.0;
 128
 129    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 130       return 16.0;
 131
 132    default:
 133       return 0;
 134    }
 135 }
 136
 137
 138 static boolean
 139 brw_is_format_supported( struct pipe_screen *screen,
 140                          enum pipe_format format,
 141                          enum pipe_texture_target target,
 142                          unsigned tex_usage,
 143                          unsigned geom_flags )
 144 {
 145 #if 0
 146    /* XXX: This is broken -- rewrite if still needed. */
 147    static const unsigned tex_supported[] = {
 148       PIPE_FORMAT_R8G8B8A8_UNORM,
 149       PIPE_FORMAT_A8R8G8B8_UNORM,
 150       PIPE_FORMAT_R5G6B5_UNORM,
 151       PIPE_FORMAT_L8_UNORM,
 152       PIPE_FORMAT_A8_UNORM,
 153       PIPE_FORMAT_I8_UNORM,
 154       PIPE_FORMAT_L8A8_UNORM,
 155       PIPE_FORMAT_YCBCR,
 156       PIPE_FORMAT_YCBCR_REV,
 157       PIPE_FORMAT_S8_Z24,
 158    };
 159
 160
 161    /* Actually a lot more than this - add later:
 162     */
 163    static const unsigned render_supported[] = {
 164       PIPE_FORMAT_A8R8G8B8_UNORM,
 165       PIPE_FORMAT_R5G6B5_UNORM,
 166    };
 167
 168    /*
 169     */
 170    static const unsigned z_stencil_supported[] = {
 171       PIPE_FORMAT_Z16_UNORM,
 172       PIPE_FORMAT_Z32_UNORM,
 173       PIPE_FORMAT_S8Z24_UNORM,
 174    };
 175
 176    switch (type) {
 177    case PIPE_RENDER_FORMAT:
 178       *numFormats = Elements(render_supported);
 179       return render_supported;
 180
 181    case PIPE_TEX_FORMAT:
 182       *numFormats = Elements(tex_supported);
 183       return render_supported;
 184
 185    case PIPE_Z_STENCIL_FORMAT:
 186       *numFormats = Elements(render_supported);
 187       return render_supported;
 188
 189    default:
 190       *numFormats = 0;
 191       return NULL;
 192    }
 193 #else
 194    switch (format) {
 195    case PIPE_FORMAT_A8R8G8B8_UNORM:
 196    case PIPE_FORMAT_R5G6B5_UNORM:
 197    case PIPE_FORMAT_S8Z24_UNORM:
 198       return TRUE;
 199    default:
 200       return FALSE;
 201    };
 202    return FALSE;
 203 #endif
 204 }
 205
 206
 207 static void
 208 brw_destroy_screen( struct pipe_screen *screen )
 209 {
 210    struct pipe_winsys *winsys = screen->winsys;
 211
 212    if(winsys->destroy)
 213       winsys->destroy(winsys);
 214
 215    FREE(screen);
 216 }
 217
 218
 219 /**
 220  * Create a new brw_screen object
 221  */
 222 struct pipe_screen *
 223 brw_create_screen(struct pipe_winsys *winsys, uint pci_id)
 224 {
 225    struct brw_screen *brwscreen = CALLOC_STRUCT(brw_screen);
 226
 227    if (!brwscreen)
 228       return NULL;
 229
 230    brwscreen->pci_id = pci_id;
 231
 232    brwscreen->screen.winsys = winsys;
 233
 234    brwscreen->screen.destroy = brw_destroy_screen;
 235
 236    brwscreen->screen.get_name = brw_get_name;
 237    brwscreen->screen.get_vendor = brw_get_vendor;
 238    brwscreen->screen.get_param = brw_get_param;
 239    brwscreen->screen.get_paramf = brw_get_paramf;
 240    brwscreen->screen.is_format_supported = brw_is_format_supported;
 241
 242    brw_init_screen_texture_funcs(&brwscreen->screen);
 243    u_simple_screen_init(&brwscreen->screen);
 244
 245    return &brwscreen->screen;
 246 }