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_format.h"
  31 #include "util/u_format_s3tc.h"
  32 #include "util/u_inlines.h"
  33 #include "util/u_memory.h"
  34 #include "util/u_string.h"
  35
  36 #include "i915_reg.h"
  37 #include "i915_debug.h"
  38 #include "i915_context.h"
  39 #include "i915_screen.h"
  40 #include "i915_resource.h"
  41 #include "i915_winsys.h"
  42 #include "i915_public.h"
  43
  44
  45 /*
  46  * Probe functions
  47  */
  48
  49
  50 static const char *
  51 i915_get_vendor(struct pipe_screen *screen)
  52 {
  53    return "VMware, Inc.";
  54 }
  55
  56 static const char *
  57 i915_get_name(struct pipe_screen *screen)
  58 {
  59    static char buffer[128];
  60    const char *chipset;
  61
  62    switch (i915_screen(screen)->iws->pci_id) {
  63    case PCI_CHIP_I915_G:
  64       chipset = "915G";
  65       break;
  66    case PCI_CHIP_I915_GM:
  67       chipset = "915GM";
  68       break;
  69    case PCI_CHIP_I945_G:
  70       chipset = "945G";
  71       break;
  72    case PCI_CHIP_I945_GM:
  73       chipset = "945GM";
  74       break;
  75    case PCI_CHIP_I945_GME:
  76       chipset = "945GME";
  77       break;
  78    case PCI_CHIP_G33_G:
  79       chipset = "G33";
  80       break;
  81    case PCI_CHIP_Q35_G:
  82       chipset = "Q35";
  83       break;
  84    case PCI_CHIP_Q33_G:
  85       chipset = "Q33";
  86       break;
  87    case PCI_CHIP_PINEVIEW_G:
  88       chipset = "Pineview G";
  89       break;
  90    case PCI_CHIP_PINEVIEW_M:
  91       chipset = "Pineview M";
  92       break;
  93    default:
  94       chipset = "unknown";
  95       break;
  96    }
  97
  98    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  99    return buffer;
 100 }
 101
 102 static int
 103 i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap cap)
 104 {
 105    switch(shader) {
 106    case PIPE_SHADER_VERTEX:
 107       switch (cap) {
 108       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 109          if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
 110             return PIPE_MAX_VERTEX_SAMPLERS;
 111          else
 112             return 0;
 113       default:
 114          return draw_get_shader_param(shader, cap);
 115       }
 116    case PIPE_SHADER_FRAGMENT:
 117       /* XXX: these are just shader model 2.0 values, fix this! */
 118       switch(cap) {
 119       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 120          return 96;
 121       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 122          return 64;
 123       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 124          return 32;
 125       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 126          return 8;
 127       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 128          return 0;
 129       case PIPE_SHADER_CAP_MAX_INPUTS:
 130          return 10;
 131       case PIPE_SHADER_CAP_MAX_CONSTS:
 132          return 32;
 133       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 134          return 1;
 135       case PIPE_SHADER_CAP_MAX_TEMPS:
 136          return 12; /* XXX: 12 -> 32 ? */
 137       case PIPE_SHADER_CAP_MAX_ADDRS:
 138          return 0;
 139       case PIPE_SHADER_CAP_MAX_PREDS:
 140          return 0;
 141       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 142          return 0;
 143       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 144       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 145       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 146       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 147          return 1;
 148       case PIPE_SHADER_CAP_SUBROUTINES:
 149          return 0;
 150       case PIPE_SHADER_CAP_INTEGERS:
 151          return 0;
 152       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 153          return 8;
 154       default:
 155          debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 156          return 0;
 157       }
 158       break;
 159    default:
 160       return 0;
 161    }
 162
 163 }
 164
 165 static int
 166 i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
 167 {
 168    struct i915_screen *is = i915_screen(screen);
 169
 170    switch (cap) {
 171    /* Supported features (boolean caps). */
 172    case PIPE_CAP_ANISOTROPIC_FILTER:
 173    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 174    case PIPE_CAP_NPOT_TEXTURES:
 175    case PIPE_CAP_POINT_SPRITE:
 176    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 177    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 178    case PIPE_CAP_TWO_SIDED_STENCIL:
 179    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 180    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 181    case PIPE_CAP_TGSI_INSTANCEID:
 182       return 1;
 183
 184    /* Unsupported features (boolean caps). */
 185    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 186    case PIPE_CAP_DEPTH_CLAMP:
 187    case PIPE_CAP_INDEP_BLEND_ENABLE:
 188    case PIPE_CAP_INDEP_BLEND_FUNC:
 189    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 190    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 191    case PIPE_CAP_TEXTURE_SWIZZLE:
 192    case PIPE_CAP_TIMER_QUERY:
 193    case PIPE_CAP_SM3:
 194    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 195    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 196    case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
 197    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 198    case PIPE_CAP_CONDITIONAL_RENDER:
 199    case PIPE_CAP_TEXTURE_BARRIER:
 200       return 0;
 201
 202    /* Features we can lie about (boolean caps). */
 203    case PIPE_CAP_GLSL:
 204    case PIPE_CAP_OCCLUSION_QUERY:
 205       return is->debug.lie ? 1 : 0;
 206
 207    /* Texturing. */
 208    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 209       return i915_get_shader_param(screen,
 210                                    PIPE_SHADER_VERTEX,
 211                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) +
 212              i915_get_shader_param(screen,
 213                                    PIPE_SHADER_FRAGMENT,
 214                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS);
 215    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 216       return I915_MAX_TEXTURE_2D_LEVELS;
 217    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 218       return I915_MAX_TEXTURE_3D_LEVELS;
 219    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 220       return I915_MAX_TEXTURE_2D_LEVELS;
 221    case PIPE_CAP_MIN_TEXEL_OFFSET:
 222    case PIPE_CAP_MAX_TEXEL_OFFSET:
 223       return 0;
 224
 225    /* Render targets. */
 226    case PIPE_CAP_MAX_RENDER_TARGETS:
 227       return 1;
 228
 229    /* Fragment coordinate conventions. */
 230    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 231    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 232       return 1;
 233    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 234    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 235       return 0;
 236
 237    default:
 238       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 239       return 0;
 240    }
 241 }
 242
 243 static float
 244 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap cap)
 245 {
 246    switch(cap) {
 247    case PIPE_CAP_MAX_LINE_WIDTH:
 248       /* fall-through */
 249    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 250       return 7.5;
 251
 252    case PIPE_CAP_MAX_POINT_WIDTH:
 253       /* fall-through */
 254    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 255       return 255.0;
 256
 257    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 258       return 4.0;
 259
 260    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 261       return 16.0;
 262
 263    default:
 264       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 265       return 0;
 266    }
 267 }
 268
 269 boolean
 270 i915_is_format_supported(struct pipe_screen *screen,
 271                          enum pipe_format format,
 272                          enum pipe_texture_target target,
 273                          unsigned sample_count,
 274                          unsigned tex_usage)
 275 {
 276    static const enum pipe_format tex_supported[] = {
 277       PIPE_FORMAT_B8G8R8A8_UNORM,
 278       PIPE_FORMAT_B8G8R8X8_UNORM,
 279       PIPE_FORMAT_R8G8B8A8_UNORM,
 280       PIPE_FORMAT_R8G8B8X8_UNORM,
 281       PIPE_FORMAT_B5G6R5_UNORM,
 282       PIPE_FORMAT_B10G10R10A2_UNORM,
 283       PIPE_FORMAT_L8_UNORM,
 284       PIPE_FORMAT_A8_UNORM,
 285       PIPE_FORMAT_I8_UNORM,
 286       PIPE_FORMAT_L8A8_UNORM,
 287       PIPE_FORMAT_UYVY,
 288       PIPE_FORMAT_YUYV,
 289       /* XXX why not?
 290       PIPE_FORMAT_Z16_UNORM, */
 291       PIPE_FORMAT_DXT1_RGB,
 292       PIPE_FORMAT_DXT1_RGBA,
 293       PIPE_FORMAT_DXT3_RGBA,
 294       PIPE_FORMAT_DXT5_RGBA,
 295       PIPE_FORMAT_Z24X8_UNORM,
 296       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 297       PIPE_FORMAT_NONE  /* list terminator */
 298    };
 299    static const enum pipe_format render_supported[] = {
 300       PIPE_FORMAT_B8G8R8A8_UNORM,
 301       PIPE_FORMAT_R8G8B8A8_UNORM,
 302       PIPE_FORMAT_B5G6R5_UNORM,
 303       PIPE_FORMAT_B10G10R10A2_UNORM,
 304       PIPE_FORMAT_L8_UNORM,
 305       PIPE_FORMAT_A8_UNORM,
 306       PIPE_FORMAT_I8_UNORM,
 307       PIPE_FORMAT_NONE  /* list terminator */
 308    };
 309    static const enum pipe_format depth_supported[] = {
 310       /* XXX why not?
 311       PIPE_FORMAT_Z16_UNORM, */
 312       PIPE_FORMAT_Z24X8_UNORM,
 313       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 314       PIPE_FORMAT_NONE  /* list terminator */
 315    };
 316    const enum pipe_format *list;
 317    uint i;
 318
 319    if (!util_format_is_supported(format, tex_usage))
 320       return FALSE;
 321
 322    if (sample_count > 1)
 323       return FALSE;
 324
 325    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 326       list = depth_supported;
 327    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 328       list = render_supported;
 329    else
 330       list = tex_supported;
 331
 332    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 333       if (list[i] == format)
 334          return TRUE;
 335    }
 336
 337    return FALSE;
 338 }
 339
 340
 341 /*
 342  * Fence functions
 343  */
 344
 345
 346 static void
 347 i915_fence_reference(struct pipe_screen *screen,
 348                      struct pipe_fence_handle **ptr,
 349                      struct pipe_fence_handle *fence)
 350 {
 351    struct i915_screen *is = i915_screen(screen);
 352
 353    is->iws->fence_reference(is->iws, ptr, fence);
 354 }
 355
 356 static boolean
 357 i915_fence_signalled(struct pipe_screen *screen,
 358                      struct pipe_fence_handle *fence)
 359 {
 360    struct i915_screen *is = i915_screen(screen);
 361
 362    return is->iws->fence_signalled(is->iws, fence) == 0;
 363 }
 364
 365 static boolean
 366 i915_fence_finish(struct pipe_screen *screen,
 367                   struct pipe_fence_handle *fence,
 368                   uint64_t timeout)
 369 {
 370    struct i915_screen *is = i915_screen(screen);
 371
 372    return is->iws->fence_finish(is->iws, fence) == 0;
 373 }
 374
 375
 376 /*
 377  * Generic functions
 378  */
 379
 380
 381 static void
 382 i915_flush_frontbuffer(struct pipe_screen *screen,
 383                        struct pipe_resource *resource,
 384                        unsigned level, unsigned layer,
 385                        void *winsys_drawable_handle)
 386 {
 387    /* XXX: Dummy right now. */
 388    (void)screen;
 389    (void)resource;
 390    (void)level;
 391    (void)layer;
 392    (void)winsys_drawable_handle;
 393 }
 394
 395 static void
 396 i915_destroy_screen(struct pipe_screen *screen)
 397 {
 398    struct i915_screen *is = i915_screen(screen);
 399
 400    if (is->iws)
 401       is->iws->destroy(is->iws);
 402
 403    FREE(is);
 404 }
 405
 406 /**
 407  * Create a new i915_screen object
 408  */
 409 struct pipe_screen *
 410 i915_screen_create(struct i915_winsys *iws)
 411 {
 412    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 413
 414    if (!is)
 415       return NULL;
 416
 417    switch (iws->pci_id) {
 418    case PCI_CHIP_I915_G:
 419    case PCI_CHIP_I915_GM:
 420       is->is_i945 = FALSE;
 421       break;
 422
 423    case PCI_CHIP_I945_G:
 424    case PCI_CHIP_I945_GM:
 425    case PCI_CHIP_I945_GME:
 426    case PCI_CHIP_G33_G:
 427    case PCI_CHIP_Q33_G:
 428    case PCI_CHIP_Q35_G:
 429    case PCI_CHIP_PINEVIEW_G:
 430    case PCI_CHIP_PINEVIEW_M:
 431       is->is_i945 = TRUE;
 432       break;
 433
 434    default:
 435       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 436                    __FUNCTION__, iws->pci_id);
 437       FREE(is);
 438       return NULL;
 439    }
 440
 441    is->iws = iws;
 442
 443    is->base.winsys = NULL;
 444
 445    is->base.destroy = i915_destroy_screen;
 446    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 447
 448    is->base.get_name = i915_get_name;
 449    is->base.get_vendor = i915_get_vendor;
 450    is->base.get_param = i915_get_param;
 451    is->base.get_shader_param = i915_get_shader_param;
 452    is->base.get_paramf = i915_get_paramf;
 453    is->base.is_format_supported = i915_is_format_supported;
 454
 455    is->base.context_create = i915_create_context;
 456
 457    is->base.fence_reference = i915_fence_reference;
 458    is->base.fence_signalled = i915_fence_signalled;
 459    is->base.fence_finish = i915_fence_finish;
 460
 461    i915_init_screen_resource_functions(is);
 462
 463    i915_debug_init(is);
 464
 465    util_format_s3tc_init();
 466
 467    return &is->base;
 468 }