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