src/gallium/drivers/i915/i915_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_inlines.h"
  30 #include "util/u_memory.h"
  31 #include "util/u_string.h"
  32
  33 #include "i915_reg.h"
  34 #include "i915_context.h"
  35 #include "i915_screen.h"
  36 #include "i915_surface.h"
  37 #include "i915_resource.h"
  38 #include "i915_winsys.h"
  39 #include "i915_public.h"
  40
  41
  42 /*
  43  * Probe functions
  44  */
  45
  46
  47 static const char *
  48 i915_get_vendor(struct pipe_screen *screen)
  49 {
  50    return "VMware, Inc.";
  51 }
  52
  53 static const char *
  54 i915_get_name(struct pipe_screen *screen)
  55 {
  56    static char buffer[128];
  57    const char *chipset;
  58
  59    switch (i915_screen(screen)->iws->pci_id) {
  60    case PCI_CHIP_I915_G:
  61       chipset = "915G";
  62       break;
  63    case PCI_CHIP_I915_GM:
  64       chipset = "915GM";
  65       break;
  66    case PCI_CHIP_I945_G:
  67       chipset = "945G";
  68       break;
  69    case PCI_CHIP_I945_GM:
  70       chipset = "945GM";
  71       break;
  72    case PCI_CHIP_I945_GME:
  73       chipset = "945GME";
  74       break;
  75    case PCI_CHIP_G33_G:
  76       chipset = "G33";
  77       break;
  78    case PCI_CHIP_Q35_G:
  79       chipset = "Q35";
  80       break;
  81    case PCI_CHIP_Q33_G:
  82       chipset = "Q33";
  83       break;
  84    default:
  85       chipset = "unknown";
  86       break;
  87    }
  88
  89    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  90    return buffer;
  91 }
  92
  93 static int
  94 i915_get_param(struct pipe_screen *screen, enum pipe_cap param)
  95 {
  96    switch (param) {
  97    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  98       return 8;
  99    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 100       return 0;
 101    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 102       return 8;
 103    case PIPE_CAP_NPOT_TEXTURES:
 104       return 1;
 105    case PIPE_CAP_TWO_SIDED_STENCIL:
 106       return 1;
 107    case PIPE_CAP_GLSL:
 108       return 0;
 109    case PIPE_CAP_ANISOTROPIC_FILTER:
 110       return 0;
 111    case PIPE_CAP_POINT_SPRITE:
 112       return 0;
 113    case PIPE_CAP_MAX_RENDER_TARGETS:
 114       return 1;
 115    case PIPE_CAP_OCCLUSION_QUERY:
 116       return 0;
 117    case PIPE_CAP_TIMER_QUERY:
 118       return 0;
 119    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 120       return 1;
 121    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 122       return I915_MAX_TEXTURE_2D_LEVELS;
 123    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 124       return I915_MAX_TEXTURE_3D_LEVELS;
 125    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 126       return I915_MAX_TEXTURE_2D_LEVELS;
 127    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 128    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 129       return 1;
 130    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 131    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 132       return 0;
 133    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 134       /* disable for now */
 135       return 0;
 136    default:
 137       return 0;
 138    }
 139 }
 140
 141 static float
 142 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
 143 {
 144    switch (param) {
 145    case PIPE_CAP_MAX_LINE_WIDTH:
 146       /* fall-through */
 147    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 148       return 7.5;
 149
 150    case PIPE_CAP_MAX_POINT_WIDTH:
 151       /* fall-through */
 152    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 153       return 255.0;
 154
 155    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 156       return 4.0;
 157
 158    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 159       return 16.0;
 160
 161    default:
 162       return 0;
 163    }
 164 }
 165
 166 static boolean
 167 i915_is_format_supported(struct pipe_screen *screen,
 168                          enum pipe_format format,
 169                          enum pipe_texture_target target,
 170                          unsigned sample_count,
 171                          unsigned tex_usage,
 172                          unsigned geom_flags)
 173 {
 174    static const enum pipe_format tex_supported[] = {
 175       PIPE_FORMAT_B8G8R8A8_UNORM,
 176       PIPE_FORMAT_B8G8R8X8_UNORM,
 177       PIPE_FORMAT_R8G8B8A8_UNORM,
 178 #if 0
 179       PIPE_FORMAT_R8G8B8X8_UNORM,
 180 #endif
 181       PIPE_FORMAT_B5G6R5_UNORM,
 182       PIPE_FORMAT_L8_UNORM,
 183       PIPE_FORMAT_A8_UNORM,
 184       PIPE_FORMAT_I8_UNORM,
 185       PIPE_FORMAT_L8A8_UNORM,
 186       PIPE_FORMAT_UYVY,
 187       PIPE_FORMAT_YUYV,
 188       /* XXX why not?
 189       PIPE_FORMAT_Z16_UNORM, */
 190       PIPE_FORMAT_Z24X8_UNORM,
 191       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 192       PIPE_FORMAT_NONE  /* list terminator */
 193    };
 194    static const enum pipe_format render_supported[] = {
 195       PIPE_FORMAT_B8G8R8A8_UNORM,
 196       PIPE_FORMAT_B5G6R5_UNORM,
 197       PIPE_FORMAT_NONE  /* list terminator */
 198    };
 199    static const enum pipe_format depth_supported[] = {
 200       /* XXX why not?
 201       PIPE_FORMAT_Z16_UNORM, */
 202       PIPE_FORMAT_Z24X8_UNORM,
 203       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 204       PIPE_FORMAT_NONE  /* list terminator */
 205    };
 206    const enum pipe_format *list;
 207    uint i;
 208
 209    if (sample_count > 1)
 210       return FALSE;
 211
 212    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 213       list = depth_supported;
 214    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 215       list = render_supported;
 216    else
 217       list = tex_supported;
 218
 219    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 220       if (list[i] == format)
 221          return TRUE;
 222    }
 223
 224    return FALSE;
 225 }
 226
 227
 228 /*
 229  * Fence functions
 230  */
 231
 232
 233 static void
 234 i915_fence_reference(struct pipe_screen *screen,
 235                      struct pipe_fence_handle **ptr,
 236                      struct pipe_fence_handle *fence)
 237 {
 238    struct i915_screen *is = i915_screen(screen);
 239
 240    is->iws->fence_reference(is->iws, ptr, fence);
 241 }
 242
 243 static int
 244 i915_fence_signalled(struct pipe_screen *screen,
 245                      struct pipe_fence_handle *fence,
 246                      unsigned flags)
 247 {
 248    struct i915_screen *is = i915_screen(screen);
 249
 250    return is->iws->fence_signalled(is->iws, fence);
 251 }
 252
 253 static int
 254 i915_fence_finish(struct pipe_screen *screen,
 255                   struct pipe_fence_handle *fence,
 256                   unsigned flags)
 257 {
 258    struct i915_screen *is = i915_screen(screen);
 259
 260    return is->iws->fence_finish(is->iws, fence);
 261 }
 262
 263
 264 /*
 265  * Generic functions
 266  */
 267
 268
 269 static void
 270 i915_destroy_screen(struct pipe_screen *screen)
 271 {
 272    struct i915_screen *is = i915_screen(screen);
 273
 274    if (is->iws)
 275       is->iws->destroy(is->iws);
 276
 277    FREE(is);
 278 }
 279
 280 /**
 281  * Create a new i915_screen object
 282  */
 283 struct pipe_screen *
 284 i915_screen_create(struct i915_winsys *iws)
 285 {
 286    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 287
 288    if (!is)
 289       return NULL;
 290
 291    switch (iws->pci_id) {
 292    case PCI_CHIP_I915_G:
 293    case PCI_CHIP_I915_GM:
 294       is->is_i945 = FALSE;
 295       break;
 296
 297    case PCI_CHIP_I945_G:
 298    case PCI_CHIP_I945_GM:
 299    case PCI_CHIP_I945_GME:
 300    case PCI_CHIP_G33_G:
 301    case PCI_CHIP_Q33_G:
 302    case PCI_CHIP_Q35_G:
 303       is->is_i945 = TRUE;
 304       break;
 305
 306    default:
 307       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 308                    __FUNCTION__, iws->pci_id);
 309       FREE(is);
 310       return NULL;
 311    }
 312
 313    is->iws = iws;
 314
 315    is->base.winsys = NULL;
 316
 317    is->base.destroy = i915_destroy_screen;
 318
 319    is->base.get_name = i915_get_name;
 320    is->base.get_vendor = i915_get_vendor;
 321    is->base.get_param = i915_get_param;
 322    is->base.get_paramf = i915_get_paramf;
 323    is->base.is_format_supported = i915_is_format_supported;
 324
 325    is->base.context_create = i915_create_context;
 326
 327    is->base.fence_reference = i915_fence_reference;
 328    is->base.fence_signalled = i915_fence_signalled;
 329    is->base.fence_finish = i915_fence_finish;
 330
 331    i915_init_screen_resource_functions(is);
 332    i915_init_screen_surface_functions(is);
 333
 334    return &is->base;
 335 }