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    case PCI_CHIP_PINEVIEW_G:
  87       chipset = "Pineview G";
  88       break;
  89    case PCI_CHIP_PINEVIEW_M:
  90       chipset = "Pineview M";
  91       break;
  92    default:
  93       chipset = "unknown";
  94       break;
  95    }
  96
  97    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  98    return buffer;
  99 }
 100
 101 static int
 102 i915_get_param(struct pipe_screen *screen, enum pipe_cap param)
 103 {
 104    switch (param) {
 105    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 106       return 8;
 107    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 108       return 0;
 109    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 110       return 8;
 111    case PIPE_CAP_NPOT_TEXTURES:
 112       return 1;
 113    case PIPE_CAP_TWO_SIDED_STENCIL:
 114       return 1;
 115    case PIPE_CAP_GLSL:
 116       return 0;
 117    case PIPE_CAP_ANISOTROPIC_FILTER:
 118       return 0;
 119    case PIPE_CAP_POINT_SPRITE:
 120       return 0;
 121    case PIPE_CAP_MAX_RENDER_TARGETS:
 122       return 1;
 123    case PIPE_CAP_OCCLUSION_QUERY:
 124       return 0;
 125    case PIPE_CAP_TIMER_QUERY:
 126       return 0;
 127    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 128       return 1;
 129    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 130       return I915_MAX_TEXTURE_2D_LEVELS;
 131    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 132       return I915_MAX_TEXTURE_3D_LEVELS;
 133    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 134       return I915_MAX_TEXTURE_2D_LEVELS;
 135    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 136    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 137       return 1;
 138    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 139    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 140       return 0;
 141    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 142       /* disable for now */
 143       return 0;
 144    default:
 145       return 0;
 146    }
 147 }
 148
 149 static int
 150 i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 151 {
 152    switch(shader) {
 153    case PIPE_SHADER_VERTEX:
 154       return draw_get_shader_param(shader, param);
 155    case PIPE_SHADER_FRAGMENT:
 156       break;
 157    default:
 158       return 0;
 159    }
 160
 161    /* XXX: these are just shader model 2.0 values, fix this! */
 162    switch(param) {
 163       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 164          return 96;
 165       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 166          return 64;
 167       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 168          return 32;
 169       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 170          return 8;
 171       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 172          return 0;
 173       case PIPE_SHADER_CAP_MAX_INPUTS:
 174          return 10;
 175       case PIPE_SHADER_CAP_MAX_CONSTS:
 176          return 32;
 177       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 178          return 1;
 179       case PIPE_SHADER_CAP_MAX_TEMPS:
 180          return 12; /* XXX: 12 -> 32 ? */
 181       case PIPE_SHADER_CAP_MAX_ADDRS:
 182          return 0;
 183       case PIPE_SHADER_CAP_MAX_PREDS:
 184          return 0;
 185       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 186          return 0;
 187       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 188       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 189       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 190       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 191          return 1;
 192       default:
 193          assert(0);
 194          return 0;
 195    }
 196 }
 197
 198 static float
 199 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
 200 {
 201    switch (param) {
 202    case PIPE_CAP_MAX_LINE_WIDTH:
 203       /* fall-through */
 204    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 205       return 7.5;
 206
 207    case PIPE_CAP_MAX_POINT_WIDTH:
 208       /* fall-through */
 209    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 210       return 255.0;
 211
 212    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 213       return 4.0;
 214
 215    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 216       return 16.0;
 217
 218    default:
 219       return 0;
 220    }
 221 }
 222
 223 static boolean
 224 i915_is_format_supported(struct pipe_screen *screen,
 225                          enum pipe_format format,
 226                          enum pipe_texture_target target,
 227                          unsigned sample_count,
 228                          unsigned tex_usage,
 229                          unsigned geom_flags)
 230 {
 231    static const enum pipe_format tex_supported[] = {
 232       PIPE_FORMAT_B8G8R8A8_UNORM,
 233       PIPE_FORMAT_B8G8R8X8_UNORM,
 234       PIPE_FORMAT_R8G8B8A8_UNORM,
 235 #if 0
 236       PIPE_FORMAT_R8G8B8X8_UNORM,
 237 #endif
 238       PIPE_FORMAT_B5G6R5_UNORM,
 239       PIPE_FORMAT_L8_UNORM,
 240       PIPE_FORMAT_A8_UNORM,
 241       PIPE_FORMAT_I8_UNORM,
 242       PIPE_FORMAT_L8A8_UNORM,
 243       PIPE_FORMAT_UYVY,
 244       PIPE_FORMAT_YUYV,
 245       /* XXX why not?
 246       PIPE_FORMAT_Z16_UNORM, */
 247       PIPE_FORMAT_Z24X8_UNORM,
 248       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 249       PIPE_FORMAT_NONE  /* list terminator */
 250    };
 251    static const enum pipe_format render_supported[] = {
 252       PIPE_FORMAT_B8G8R8A8_UNORM,
 253       PIPE_FORMAT_B5G6R5_UNORM,
 254       PIPE_FORMAT_NONE  /* list terminator */
 255    };
 256    static const enum pipe_format depth_supported[] = {
 257       /* XXX why not?
 258       PIPE_FORMAT_Z16_UNORM, */
 259       PIPE_FORMAT_Z24X8_UNORM,
 260       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 261       PIPE_FORMAT_NONE  /* list terminator */
 262    };
 263    const enum pipe_format *list;
 264    uint i;
 265
 266    if (sample_count > 1)
 267       return FALSE;
 268
 269    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 270       list = depth_supported;
 271    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 272       list = render_supported;
 273    else
 274       list = tex_supported;
 275
 276    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 277       if (list[i] == format)
 278          return TRUE;
 279    }
 280
 281    return FALSE;
 282 }
 283
 284
 285 /*
 286  * Fence functions
 287  */
 288
 289
 290 static void
 291 i915_fence_reference(struct pipe_screen *screen,
 292                      struct pipe_fence_handle **ptr,
 293                      struct pipe_fence_handle *fence)
 294 {
 295    struct i915_screen *is = i915_screen(screen);
 296
 297    is->iws->fence_reference(is->iws, ptr, fence);
 298 }
 299
 300 static int
 301 i915_fence_signalled(struct pipe_screen *screen,
 302                      struct pipe_fence_handle *fence,
 303                      unsigned flags)
 304 {
 305    struct i915_screen *is = i915_screen(screen);
 306
 307    return is->iws->fence_signalled(is->iws, fence);
 308 }
 309
 310 static int
 311 i915_fence_finish(struct pipe_screen *screen,
 312                   struct pipe_fence_handle *fence,
 313                   unsigned flags)
 314 {
 315    struct i915_screen *is = i915_screen(screen);
 316
 317    return is->iws->fence_finish(is->iws, fence);
 318 }
 319
 320
 321 /*
 322  * Generic functions
 323  */
 324
 325
 326 static void
 327 i915_destroy_screen(struct pipe_screen *screen)
 328 {
 329    struct i915_screen *is = i915_screen(screen);
 330
 331    if (is->iws)
 332       is->iws->destroy(is->iws);
 333
 334    FREE(is);
 335 }
 336
 337 /**
 338  * Create a new i915_screen object
 339  */
 340 struct pipe_screen *
 341 i915_screen_create(struct i915_winsys *iws)
 342 {
 343    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 344
 345    if (!is)
 346       return NULL;
 347
 348    switch (iws->pci_id) {
 349    case PCI_CHIP_I915_G:
 350    case PCI_CHIP_I915_GM:
 351       is->is_i945 = FALSE;
 352       break;
 353
 354    case PCI_CHIP_I945_G:
 355    case PCI_CHIP_I945_GM:
 356    case PCI_CHIP_I945_GME:
 357    case PCI_CHIP_G33_G:
 358    case PCI_CHIP_Q33_G:
 359    case PCI_CHIP_Q35_G:
 360    case PCI_CHIP_PINEVIEW_G:
 361    case PCI_CHIP_PINEVIEW_M:
 362       is->is_i945 = TRUE;
 363       break;
 364
 365    default:
 366       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 367                    __FUNCTION__, iws->pci_id);
 368       FREE(is);
 369       return NULL;
 370    }
 371
 372    is->iws = iws;
 373
 374    is->base.winsys = NULL;
 375
 376    is->base.destroy = i915_destroy_screen;
 377
 378    is->base.get_name = i915_get_name;
 379    is->base.get_vendor = i915_get_vendor;
 380    is->base.get_param = i915_get_param;
 381    is->base.get_shader_param = i915_get_shader_param;
 382    is->base.get_paramf = i915_get_paramf;
 383    is->base.is_format_supported = i915_is_format_supported;
 384
 385    is->base.context_create = i915_create_context;
 386
 387    is->base.fence_reference = i915_fence_reference;
 388    is->base.fence_signalled = i915_fence_signalled;
 389    is->base.fence_finish = i915_fence_finish;
 390
 391    i915_init_screen_resource_functions(is);
 392    i915_init_screen_surface_functions(is);
 393
 394    i915_debug_init(is);
 395
 396    return &is->base;
 397 }