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 "draw/draw_context.h"
  30 #include "util/u_inlines.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_string.h"
  33
  34 #include "i915_reg.h"
  35 #include "i915_debug.h"
  36 #include "i915_context.h"
  37 #include "i915_screen.h"
  38 #include "i915_surface.h"
  39 #include "i915_resource.h"
  40 #include "i915_winsys.h"
  41 #include "i915_public.h"
  42
  43
  44 /*
  45  * Probe functions
  46  */
  47
  48
  49 static const char *
  50 i915_get_vendor(struct pipe_screen *screen)
  51 {
  52    return "VMware, Inc.";
  53 }
  54
  55 static const char *
  56 i915_get_name(struct pipe_screen *screen)
  57 {
  58    static char buffer[128];
  59    const char *chipset;
  60
  61    switch (i915_screen(screen)->iws->pci_id) {
  62    case PCI_CHIP_I915_G:
  63       chipset = "915G";
  64       break;
  65    case PCI_CHIP_I915_GM:
  66       chipset = "915GM";
  67       break;
  68    case PCI_CHIP_I945_G:
  69       chipset = "945G";
  70       break;
  71    case PCI_CHIP_I945_GM:
  72       chipset = "945GM";
  73       break;
  74    case PCI_CHIP_I945_GME:
  75       chipset = "945GME";
  76       break;
  77    case PCI_CHIP_G33_G:
  78       chipset = "G33";
  79       break;
  80    case PCI_CHIP_Q35_G:
  81       chipset = "Q35";
  82       break;
  83    case PCI_CHIP_Q33_G:
  84       chipset = "Q33";
  85       break;
  86    default:
  87       chipset = "unknown";
  88       break;
  89    }
  90
  91    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  92    return buffer;
  93 }
  94
  95 static int
  96 i915_get_param(struct pipe_screen *screen, enum pipe_cap param)
  97 {
  98    switch (param) {
  99    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 100       return 8;
 101    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 102       return 0;
 103    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 104       return 8;
 105    case PIPE_CAP_NPOT_TEXTURES:
 106       return 1;
 107    case PIPE_CAP_TWO_SIDED_STENCIL:
 108       return 1;
 109    case PIPE_CAP_GLSL:
 110       return 0;
 111    case PIPE_CAP_ANISOTROPIC_FILTER:
 112       return 0;
 113    case PIPE_CAP_POINT_SPRITE:
 114       return 0;
 115    case PIPE_CAP_MAX_RENDER_TARGETS:
 116       return 1;
 117    case PIPE_CAP_OCCLUSION_QUERY:
 118       return 0;
 119    case PIPE_CAP_TIMER_QUERY:
 120       return 0;
 121    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 122       return 1;
 123    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 124       return I915_MAX_TEXTURE_2D_LEVELS;
 125    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 126       return I915_MAX_TEXTURE_3D_LEVELS;
 127    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 128       return I915_MAX_TEXTURE_2D_LEVELS;
 129    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 130    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 131       return 1;
 132    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 133    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 134       return 0;
 135    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 136       /* disable for now */
 137       return 0;
 138    default:
 139       return 0;
 140    }
 141 }
 142
 143 static int
 144 i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 145 {
 146    switch(shader) {
 147    case PIPE_SHADER_VERTEX:
 148       return draw_get_shader_param(shader, param);
 149    case PIPE_SHADER_FRAGMENT:
 150       break;
 151    default:
 152       return 0;
 153    }
 154
 155    /* XXX: these are just shader model 2.0 values, fix this! */
 156    switch(param) {
 157       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 158          return 96;
 159       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 160          return 64;
 161       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 162          return 32;
 163       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 164          return 8;
 165       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 166          return 0;
 167       case PIPE_SHADER_CAP_MAX_INPUTS:
 168          return 10;
 169       case PIPE_SHADER_CAP_MAX_CONSTS:
 170          return 32;
 171       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 172          return 1;
 173       case PIPE_SHADER_CAP_MAX_TEMPS:
 174          return 12; /* XXX: 12 -> 32 ? */
 175       case PIPE_SHADER_CAP_MAX_ADDRS:
 176          return 0;
 177       case PIPE_SHADER_CAP_MAX_PREDS:
 178          return 0;
 179       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 180          return 0;
 181       default:
 182          assert(0);
 183          return 0;
 184    }
 185 }
 186
 187 static float
 188 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
 189 {
 190    switch (param) {
 191    case PIPE_CAP_MAX_LINE_WIDTH:
 192       /* fall-through */
 193    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 194       return 7.5;
 195
 196    case PIPE_CAP_MAX_POINT_WIDTH:
 197       /* fall-through */
 198    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 199       return 255.0;
 200
 201    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 202       return 4.0;
 203
 204    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 205       return 16.0;
 206
 207    default:
 208       return 0;
 209    }
 210 }
 211
 212 static boolean
 213 i915_is_format_supported(struct pipe_screen *screen,
 214                          enum pipe_format format,
 215                          enum pipe_texture_target target,
 216                          unsigned sample_count,
 217                          unsigned tex_usage,
 218                          unsigned geom_flags)
 219 {
 220    static const enum pipe_format tex_supported[] = {
 221       PIPE_FORMAT_B8G8R8A8_UNORM,
 222       PIPE_FORMAT_B8G8R8X8_UNORM,
 223       PIPE_FORMAT_R8G8B8A8_UNORM,
 224 #if 0
 225       PIPE_FORMAT_R8G8B8X8_UNORM,
 226 #endif
 227       PIPE_FORMAT_B5G6R5_UNORM,
 228       PIPE_FORMAT_L8_UNORM,
 229       PIPE_FORMAT_A8_UNORM,
 230       PIPE_FORMAT_I8_UNORM,
 231       PIPE_FORMAT_L8A8_UNORM,
 232       PIPE_FORMAT_UYVY,
 233       PIPE_FORMAT_YUYV,
 234       /* XXX why not?
 235       PIPE_FORMAT_Z16_UNORM, */
 236       PIPE_FORMAT_Z24X8_UNORM,
 237       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 238       PIPE_FORMAT_NONE  /* list terminator */
 239    };
 240    static const enum pipe_format render_supported[] = {
 241       PIPE_FORMAT_B8G8R8A8_UNORM,
 242       PIPE_FORMAT_B5G6R5_UNORM,
 243       PIPE_FORMAT_NONE  /* list terminator */
 244    };
 245    static const enum pipe_format depth_supported[] = {
 246       /* XXX why not?
 247       PIPE_FORMAT_Z16_UNORM, */
 248       PIPE_FORMAT_Z24X8_UNORM,
 249       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 250       PIPE_FORMAT_NONE  /* list terminator */
 251    };
 252    const enum pipe_format *list;
 253    uint i;
 254
 255    if (sample_count > 1)
 256       return FALSE;
 257
 258    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 259       list = depth_supported;
 260    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 261       list = render_supported;
 262    else
 263       list = tex_supported;
 264
 265    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 266       if (list[i] == format)
 267          return TRUE;
 268    }
 269
 270    return FALSE;
 271 }
 272
 273
 274 /*
 275  * Fence functions
 276  */
 277
 278
 279 static void
 280 i915_fence_reference(struct pipe_screen *screen,
 281                      struct pipe_fence_handle **ptr,
 282                      struct pipe_fence_handle *fence)
 283 {
 284    struct i915_screen *is = i915_screen(screen);
 285
 286    is->iws->fence_reference(is->iws, ptr, fence);
 287 }
 288
 289 static int
 290 i915_fence_signalled(struct pipe_screen *screen,
 291                      struct pipe_fence_handle *fence,
 292                      unsigned flags)
 293 {
 294    struct i915_screen *is = i915_screen(screen);
 295
 296    return is->iws->fence_signalled(is->iws, fence);
 297 }
 298
 299 static int
 300 i915_fence_finish(struct pipe_screen *screen,
 301                   struct pipe_fence_handle *fence,
 302                   unsigned flags)
 303 {
 304    struct i915_screen *is = i915_screen(screen);
 305
 306    return is->iws->fence_finish(is->iws, fence);
 307 }
 308
 309
 310 /*
 311  * Generic functions
 312  */
 313
 314
 315 static void
 316 i915_destroy_screen(struct pipe_screen *screen)
 317 {
 318    struct i915_screen *is = i915_screen(screen);
 319
 320    if (is->iws)
 321       is->iws->destroy(is->iws);
 322
 323    FREE(is);
 324 }
 325
 326 /**
 327  * Create a new i915_screen object
 328  */
 329 struct pipe_screen *
 330 i915_screen_create(struct i915_winsys *iws)
 331 {
 332    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 333
 334    if (!is)
 335       return NULL;
 336
 337    switch (iws->pci_id) {
 338    case PCI_CHIP_I915_G:
 339    case PCI_CHIP_I915_GM:
 340       is->is_i945 = FALSE;
 341       break;
 342
 343    case PCI_CHIP_I945_G:
 344    case PCI_CHIP_I945_GM:
 345    case PCI_CHIP_I945_GME:
 346    case PCI_CHIP_G33_G:
 347    case PCI_CHIP_Q33_G:
 348    case PCI_CHIP_Q35_G:
 349       is->is_i945 = TRUE;
 350       break;
 351
 352    default:
 353       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 354                    __FUNCTION__, iws->pci_id);
 355       FREE(is);
 356       return NULL;
 357    }
 358
 359    is->iws = iws;
 360
 361    is->base.winsys = NULL;
 362
 363    is->base.destroy = i915_destroy_screen;
 364
 365    is->base.get_name = i915_get_name;
 366    is->base.get_vendor = i915_get_vendor;
 367    is->base.get_param = i915_get_param;
 368    is->base.get_shader_param = i915_get_shader_param;
 369    is->base.get_paramf = i915_get_paramf;
 370    is->base.is_format_supported = i915_is_format_supported;
 371
 372    is->base.context_create = i915_create_context;
 373
 374    is->base.fence_reference = i915_fence_reference;
 375    is->base.fence_signalled = i915_fence_signalled;
 376    is->base.fence_finish = i915_fence_finish;
 377
 378    i915_init_screen_resource_functions(is);
 379    i915_init_screen_surface_functions(is);
 380
 381    i915_debug_init(is);
 382
 383    return &is->base;
 384 }