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