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_param(struct pipe_screen *screen, enum pipe_cap cap)
 104 {
 105    struct i915_screen *is = i915_screen(screen);
 106
 107    switch (cap) {
 108    /* Supported features (boolean caps). */
 109    case PIPE_CAP_ANISOTROPIC_FILTER:
 110    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 111    case PIPE_CAP_NPOT_TEXTURES:
 112    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 113    case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 114    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 115    case PIPE_CAP_TWO_SIDED_STENCIL:
 116       return 1;
 117
 118    /* Features that should be supported (boolean caps). */
 119    /* XXX: Just test the code */
 120    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 121    /* XXX: No code but hw supports it */
 122    case PIPE_CAP_POINT_SPRITE:
 123       /* Also lie about these when asked to (needed for GLSL / GL 2.0) */
 124       return is->debug.lie ? 1 : 0;
 125
 126    /* Unsupported features (boolean caps). */
 127    case PIPE_CAP_ARRAY_TEXTURES:
 128    case PIPE_CAP_DEPTH_CLAMP:
 129    case PIPE_CAP_INDEP_BLEND_ENABLE:
 130    case PIPE_CAP_INDEP_BLEND_FUNC:
 131    case PIPE_CAP_TGSI_INSTANCEID:
 132    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 133    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 134    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 135    case PIPE_CAP_TEXTURE_SWIZZLE:
 136    case PIPE_CAP_TIMER_QUERY:
 137       return 0;
 138
 139    /* Features we can lie about (boolean caps). */
 140    case PIPE_CAP_GLSL:
 141    case PIPE_CAP_OCCLUSION_QUERY:
 142       return is->debug.lie ? 1 : 0;
 143
 144    /* Texturing. */
 145    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 146    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 147       return 8;
 148    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 149       return 0;
 150    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 151       return I915_MAX_TEXTURE_2D_LEVELS;
 152    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 153       return I915_MAX_TEXTURE_3D_LEVELS;
 154    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 155       return I915_MAX_TEXTURE_2D_LEVELS;
 156
 157    /* Render targets. */
 158    case PIPE_CAP_MAX_RENDER_TARGETS:
 159       return 1;
 160
 161    /* Fragment coordinate conventions. */
 162    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 163    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 164       return 1;
 165    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 166    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 167       return 0;
 168
 169    default:
 170       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 171       return 0;
 172    }
 173 }
 174
 175 static int
 176 i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap cap)
 177 {
 178    switch(shader) {
 179    case PIPE_SHADER_VERTEX:
 180       return draw_get_shader_param(shader, cap);
 181    case PIPE_SHADER_FRAGMENT:
 182       break;
 183    default:
 184       return 0;
 185    }
 186
 187    /* XXX: these are just shader model 2.0 values, fix this! */
 188    switch(cap) {
 189       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 190          return 96;
 191       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 192          return 64;
 193       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 194          return 32;
 195       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 196          return 8;
 197       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 198          return 0;
 199       case PIPE_SHADER_CAP_MAX_INPUTS:
 200          return 10;
 201       case PIPE_SHADER_CAP_MAX_CONSTS:
 202          return 32;
 203       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 204          return 1;
 205       case PIPE_SHADER_CAP_MAX_TEMPS:
 206          return 12; /* XXX: 12 -> 32 ? */
 207       case PIPE_SHADER_CAP_MAX_ADDRS:
 208          return 0;
 209       case PIPE_SHADER_CAP_MAX_PREDS:
 210          return 0;
 211       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 212          return 0;
 213       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 214       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 215       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 216       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 217          return 1;
 218       case PIPE_SHADER_CAP_SUBROUTINES:
 219          return 0;
 220       default:
 221          debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 222          return 0;
 223    }
 224 }
 225
 226 static float
 227 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap cap)
 228 {
 229    switch(cap) {
 230    case PIPE_CAP_MAX_LINE_WIDTH:
 231       /* fall-through */
 232    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 233       return 7.5;
 234
 235    case PIPE_CAP_MAX_POINT_WIDTH:
 236       /* fall-through */
 237    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 238       return 255.0;
 239
 240    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 241       return 4.0;
 242
 243    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 244       return 16.0;
 245
 246    default:
 247       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 248       return 0;
 249    }
 250 }
 251
 252 static boolean
 253 i915_is_format_supported(struct pipe_screen *screen,
 254                          enum pipe_format format,
 255                          enum pipe_texture_target target,
 256                          unsigned sample_count,
 257                          unsigned tex_usage)
 258 {
 259    static const enum pipe_format tex_supported[] = {
 260       PIPE_FORMAT_B8G8R8A8_UNORM,
 261       PIPE_FORMAT_B8G8R8X8_UNORM,
 262       PIPE_FORMAT_B5G6R5_UNORM,
 263       PIPE_FORMAT_L8_UNORM,
 264       PIPE_FORMAT_A8_UNORM,
 265       PIPE_FORMAT_I8_UNORM,
 266       PIPE_FORMAT_L8A8_UNORM,
 267       PIPE_FORMAT_UYVY,
 268       PIPE_FORMAT_YUYV,
 269       /* XXX why not?
 270       PIPE_FORMAT_Z16_UNORM, */
 271       PIPE_FORMAT_DXT1_RGB,
 272       PIPE_FORMAT_DXT1_RGBA,
 273       PIPE_FORMAT_DXT3_RGBA,
 274       PIPE_FORMAT_DXT5_RGBA,
 275       PIPE_FORMAT_Z24X8_UNORM,
 276       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 277       PIPE_FORMAT_NONE  /* list terminator */
 278    };
 279    static const enum pipe_format render_supported[] = {
 280       PIPE_FORMAT_B8G8R8A8_UNORM,
 281       PIPE_FORMAT_B5G6R5_UNORM,
 282       PIPE_FORMAT_NONE  /* list terminator */
 283    };
 284    static const enum pipe_format depth_supported[] = {
 285       /* XXX why not?
 286       PIPE_FORMAT_Z16_UNORM, */
 287       PIPE_FORMAT_Z24X8_UNORM,
 288       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 289       PIPE_FORMAT_NONE  /* list terminator */
 290    };
 291    const enum pipe_format *list;
 292    uint i;
 293
 294    if (!util_format_is_supported(format, tex_usage))
 295       return FALSE;
 296
 297    if (sample_count > 1)
 298       return FALSE;
 299
 300    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 301       list = depth_supported;
 302    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 303       list = render_supported;
 304    else
 305       list = tex_supported;
 306
 307    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 308       if (list[i] == format)
 309          return TRUE;
 310    }
 311
 312    return FALSE;
 313 }
 314
 315
 316 /*
 317  * Fence functions
 318  */
 319
 320
 321 static void
 322 i915_fence_reference(struct pipe_screen *screen,
 323                      struct pipe_fence_handle **ptr,
 324                      struct pipe_fence_handle *fence)
 325 {
 326    struct i915_screen *is = i915_screen(screen);
 327
 328    is->iws->fence_reference(is->iws, ptr, fence);
 329 }
 330
 331 static boolean
 332 i915_fence_signalled(struct pipe_screen *screen,
 333                      struct pipe_fence_handle *fence)
 334 {
 335    struct i915_screen *is = i915_screen(screen);
 336
 337    return is->iws->fence_signalled(is->iws, fence) == 0;
 338 }
 339
 340 static boolean
 341 i915_fence_finish(struct pipe_screen *screen,
 342                   struct pipe_fence_handle *fence,
 343                   uint64_t timeout)
 344 {
 345    struct i915_screen *is = i915_screen(screen);
 346
 347    return is->iws->fence_finish(is->iws, fence) == 0;
 348 }
 349
 350
 351 /*
 352  * Generic functions
 353  */
 354
 355
 356 static void
 357 i915_flush_frontbuffer(struct pipe_screen *screen,
 358                        struct pipe_resource *resource,
 359                        unsigned level, unsigned layer,
 360                        void *winsys_drawable_handle)
 361 {
 362    /* XXX: Dummy right now. */
 363    (void)screen;
 364    (void)resource;
 365    (void)level;
 366    (void)layer;
 367    (void)winsys_drawable_handle;
 368 }
 369
 370 static void
 371 i915_destroy_screen(struct pipe_screen *screen)
 372 {
 373    struct i915_screen *is = i915_screen(screen);
 374
 375    if (is->iws)
 376       is->iws->destroy(is->iws);
 377
 378    FREE(is);
 379 }
 380
 381 /**
 382  * Create a new i915_screen object
 383  */
 384 struct pipe_screen *
 385 i915_screen_create(struct i915_winsys *iws)
 386 {
 387    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 388
 389    if (!is)
 390       return NULL;
 391
 392    switch (iws->pci_id) {
 393    case PCI_CHIP_I915_G:
 394    case PCI_CHIP_I915_GM:
 395       is->is_i945 = FALSE;
 396       break;
 397
 398    case PCI_CHIP_I945_G:
 399    case PCI_CHIP_I945_GM:
 400    case PCI_CHIP_I945_GME:
 401    case PCI_CHIP_G33_G:
 402    case PCI_CHIP_Q33_G:
 403    case PCI_CHIP_Q35_G:
 404    case PCI_CHIP_PINEVIEW_G:
 405    case PCI_CHIP_PINEVIEW_M:
 406       is->is_i945 = TRUE;
 407       break;
 408
 409    default:
 410       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 411                    __FUNCTION__, iws->pci_id);
 412       FREE(is);
 413       return NULL;
 414    }
 415
 416    is->iws = iws;
 417
 418    is->base.winsys = NULL;
 419
 420    is->base.destroy = i915_destroy_screen;
 421    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 422
 423    is->base.get_name = i915_get_name;
 424    is->base.get_vendor = i915_get_vendor;
 425    is->base.get_param = i915_get_param;
 426    is->base.get_shader_param = i915_get_shader_param;
 427    is->base.get_paramf = i915_get_paramf;
 428    is->base.is_format_supported = i915_is_format_supported;
 429
 430    is->base.context_create = i915_create_context;
 431
 432    is->base.fence_reference = i915_fence_reference;
 433    is->base.fence_signalled = i915_fence_signalled;
 434    is->base.fence_finish = i915_fence_finish;
 435
 436    i915_init_screen_resource_functions(is);
 437
 438    i915_debug_init(is);
 439
 440    util_format_s3tc_init();
 441
 442    return &is->base;
 443 }