src/mesa/drivers/dri/intel/intel_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 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 "glheader.h"
  30 #include "context.h"
  31 #include "matrix.h"
  32 #include "simple_list.h"
  33 #include "extensions.h"
  34 #include "framebuffer.h"
  35 #include "imports.h"
  36 #include "points.h"
  37
  38 #include "swrast/swrast.h"
  39 #include "swrast_setup/swrast_setup.h"
  40 #include "tnl/tnl.h"
  41
  42 #include "tnl/t_pipeline.h"
  43 #include "tnl/t_vertex.h"
  44
  45 #include "drivers/common/driverfuncs.h"
  46
  47 #include "intel_screen.h"
  48
  49 #include "i830_dri.h"
  50
  51 #include "intel_chipset.h"
  52 #include "intel_buffers.h"
  53 #include "intel_tex.h"
  54 #include "intel_batchbuffer.h"
  55 #include "intel_blit.h"
  56 #include "intel_pixel.h"
  57 #include "intel_regions.h"
  58 #include "intel_buffer_objects.h"
  59 #include "intel_fbo.h"
  60 #include "intel_decode.h"
  61 #include "intel_bufmgr.h"
  62
  63 #include "drirenderbuffer.h"
  64 #include "vblank.h"
  65 #include "utils.h"
  66 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  67 #ifndef INTEL_DEBUG
  68 int INTEL_DEBUG = (0);
  69 #endif
  70
  71 #define need_GL_NV_point_sprite
  72 #define need_GL_ARB_multisample
  73 #define need_GL_ARB_point_parameters
  74 #define need_GL_ARB_texture_compression
  75 #define need_GL_ARB_vertex_buffer_object
  76 #define need_GL_ARB_vertex_program
  77 #define need_GL_ARB_window_pos
  78 #define need_GL_ARB_occlusion_query
  79 #define need_GL_EXT_blend_color
  80 #define need_GL_EXT_blend_equation_separate
  81 #define need_GL_EXT_blend_func_separate
  82 #define need_GL_EXT_blend_minmax
  83 #define need_GL_EXT_cull_vertex
  84 #define need_GL_EXT_fog_coord
  85 #define need_GL_EXT_framebuffer_object
  86 #define need_GL_EXT_multi_draw_arrays
  87 #define need_GL_EXT_secondary_color
  88 #define need_GL_NV_vertex_program
  89 #define need_GL_ATI_separate_stencil
  90 #define need_GL_EXT_point_parameters
  91 #define need_GL_VERSION_2_0
  92 #define need_GL_VERSION_2_1
  93 #define need_GL_ARB_shader_objects
  94 #define need_GL_ARB_vertex_shader
  95
  96 #include "extension_helper.h"
  97
  98 #define DRIVER_DATE                     "20080716"
  99 #define DRIVER_DATE_GEM                 "GEM " DRIVER_DATE
 100
 101 static const GLubyte *
 102 intelGetString(GLcontext * ctx, GLenum name)
 103 {
 104    const struct intel_context *const intel = intel_context(ctx);
 105    const char *chipset;
 106    static char buffer[128];
 107
 108    switch (name) {
 109    case GL_VENDOR:
 110       return (GLubyte *) "Tungsten Graphics, Inc";
 111       break;
 112
 113    case GL_RENDERER:
 114       switch (intel->intelScreen->deviceID) {
 115       case PCI_CHIP_845_G:
 116          chipset = "Intel(R) 845G";
 117          break;
 118       case PCI_CHIP_I830_M:
 119          chipset = "Intel(R) 830M";
 120          break;
 121       case PCI_CHIP_I855_GM:
 122          chipset = "Intel(R) 852GM/855GM";
 123          break;
 124       case PCI_CHIP_I865_G:
 125          chipset = "Intel(R) 865G";
 126          break;
 127       case PCI_CHIP_I915_G:
 128          chipset = "Intel(R) 915G";
 129          break;
 130       case PCI_CHIP_E7221_G:
 131          chipset = "Intel (R) E7221G (i915)";
 132          break;
 133       case PCI_CHIP_I915_GM:
 134          chipset = "Intel(R) 915GM";
 135          break;
 136       case PCI_CHIP_I945_G:
 137          chipset = "Intel(R) 945G";
 138          break;
 139       case PCI_CHIP_I945_GM:
 140          chipset = "Intel(R) 945GM";
 141          break;
 142       case PCI_CHIP_I945_GME:
 143          chipset = "Intel(R) 945GME";
 144          break;
 145       case PCI_CHIP_G33_G:
 146          chipset = "Intel(R) G33";
 147          break;
 148       case PCI_CHIP_Q35_G:
 149          chipset = "Intel(R) Q35";
 150          break;
 151       case PCI_CHIP_Q33_G:
 152          chipset = "Intel(R) Q33";
 153          break;
 154       case PCI_CHIP_I965_Q:
 155          chipset = "Intel(R) 965Q";
 156          break;
 157       case PCI_CHIP_I965_G:
 158       case PCI_CHIP_I965_G_1:
 159          chipset = "Intel(R) 965G";
 160          break;
 161       case PCI_CHIP_I946_GZ:
 162          chipset = "Intel(R) 946GZ";
 163          break;
 164       case PCI_CHIP_I965_GM:
 165          chipset = "Intel(R) 965GM";
 166          break;
 167       case PCI_CHIP_I965_GME:
 168          chipset = "Intel(R) 965GME/GLE";
 169          break;
 170       case PCI_CHIP_GM45_GM:
 171          chipset = "Mobile Intel® GM45 Express Chipset";
 172          break;
 173       case PCI_CHIP_IGD_E_G:
 174          chipset = "Intel(R) Integrated Graphics Device";
 175          break;
 176       case PCI_CHIP_G45_G:
 177          chipset = "Intel(R) G45/G43";
 178          break;
 179       case PCI_CHIP_Q45_G:
 180          chipset = "Intel(R) Q45/Q43";
 181          break;
 182       case PCI_CHIP_G41_G:
 183          chipset = "Intel(R) G41";
 184          break;
 185       default:
 186          chipset = "Unknown Intel Chipset";
 187          break;
 188       }
 189
 190       (void) driGetRendererString(buffer, chipset,
 191                                   (intel->ttm) ? DRIVER_DATE_GEM : DRIVER_DATE,
 192                                   0);
 193       return (GLubyte *) buffer;
 194
 195    default:
 196       return NULL;
 197    }
 198 }
 199
 200 void
 201 intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
 202 {
 203    struct intel_framebuffer *intel_fb = drawable->driverPrivate;
 204    struct intel_renderbuffer *rb;
 205    struct intel_region *region, *depth_region;
 206    struct intel_context *intel = context->driverPrivate;
 207    __DRIbuffer *buffers;
 208    __DRIscreen *screen;
 209    int i, count;
 210    unsigned int attachments[10];
 211    uint32_t name;
 212    const char *region_name;
 213
 214    if (INTEL_DEBUG & DEBUG_DRI)
 215       fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);
 216
 217    screen = intel->intelScreen->driScrnPriv;
 218
 219    i = 0;
 220    if (intel_fb->color_rb[0])
 221       attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
 222    if (intel_fb->color_rb[1])
 223       attachments[i++] = __DRI_BUFFER_BACK_LEFT;
 224    if (intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH))
 225       attachments[i++] = __DRI_BUFFER_DEPTH;
 226    if (intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL))
 227       attachments[i++] = __DRI_BUFFER_STENCIL;
 228
 229    buffers = (*screen->dri2.loader->getBuffers)(drawable,
 230                                                 &drawable->w,
 231                                                 &drawable->h,
 232                                                 attachments, i,
 233                                                 &count,
 234                                                 drawable->loaderPrivate);
 235
 236    if (buffers == NULL)
 237       return;
 238
 239    drawable->x = 0;
 240    drawable->y = 0;
 241    drawable->backX = 0;
 242    drawable->backY = 0;
 243    drawable->numClipRects = 1;
 244    drawable->pClipRects[0].x1 = 0;
 245    drawable->pClipRects[0].y1 = 0;
 246    drawable->pClipRects[0].x2 = drawable->w;
 247    drawable->pClipRects[0].y2 = drawable->h;
 248    drawable->numBackClipRects = 1;
 249    drawable->pBackClipRects[0].x1 = 0;
 250    drawable->pBackClipRects[0].y1 = 0;
 251    drawable->pBackClipRects[0].x2 = drawable->w;
 252    drawable->pBackClipRects[0].y2 = drawable->h;
 253
 254    depth_region = NULL;
 255    for (i = 0; i < count; i++) {
 256        switch (buffers[i].attachment) {
 257        case __DRI_BUFFER_FRONT_LEFT:
 258            rb = intel_fb->color_rb[0];
 259            region_name = "dri2 front buffer";
 260            break;
 261
 262        case __DRI_BUFFER_BACK_LEFT:
 263            rb = intel_fb->color_rb[1];
 264            region_name = "dri2 back buffer";
 265            break;
 266
 267        case __DRI_BUFFER_DEPTH:
 268            rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
 269            region_name = "dri2 depth buffer";
 270            break;
 271
 272        case __DRI_BUFFER_STENCIL:
 273            rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
 274            region_name = "dri2 stencil buffer";
 275            break;
 276
 277        case __DRI_BUFFER_ACCUM:
 278        default:
 279            fprintf(stderr,
 280                    "unhandled buffer attach event, attacment type %d\n",
 281                    buffers[i].attachment);
 282            return;
 283        }
 284
 285        if (rb->region) {
 286           dri_bo_flink(rb->region->buffer, &name);
 287           if (name == buffers[i].name)
 288              continue;
 289        }
 290
 291        if (INTEL_DEBUG & DEBUG_DRI)
 292           fprintf(stderr,
 293                   "attaching buffer %d, at %d, cpp %d, pitch %d\n",
 294                   buffers[i].name, buffers[i].attachment,
 295                   buffers[i].cpp, buffers[i].pitch);
 296
 297        if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) {
 298           if (INTEL_DEBUG & DEBUG_DRI)
 299              fprintf(stderr, "(reusing depth buffer as stencil)\n");
 300           intel_region_reference(&region, depth_region);
 301        }
 302        else
 303           region = intel_region_alloc_for_handle(intel, buffers[i].cpp,
 304                                                  buffers[i].pitch / buffers[i].cpp,
 305                                                  drawable->h,
 306                                                  buffers[i].name,
 307                                                  region_name);
 308
 309        if (buffers[i].attachment == __DRI_BUFFER_DEPTH)
 310           depth_region = region;
 311
 312        intel_renderbuffer_set_region(rb, region);
 313        intel_region_release(&region);
 314    }
 315
 316    driUpdateFramebufferSize(&intel->ctx, drawable);
 317 }
 318
 319 static void
 320 intel_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
 321 {
 322     struct intel_context *intel = intel_context(ctx);
 323     __DRIcontext *driContext = intel->driContext;
 324
 325     if (!driContext->driScreenPriv->dri2.enabled)
 326         return;
 327
 328     intel_update_renderbuffers(driContext, driContext->driDrawablePriv);
 329     if (driContext->driDrawablePriv != driContext->driReadablePriv)
 330         intel_update_renderbuffers(driContext, driContext->driReadablePriv);
 331
 332     ctx->Driver.Viewport = NULL;
 333     intel->driDrawable = driContext->driDrawablePriv;
 334     intelWindowMoved(intel);
 335     intel_draw_buffer(ctx, intel->ctx.DrawBuffer);
 336     ctx->Driver.Viewport = intel_viewport;
 337 }
 338
 339 /**
 340  * Extension strings exported by the intel driver.
 341  *
 342  * Extensions supported by all chips supported by i830_dri, i915_dri, or
 343  * i965_dri.
 344  */
 345 static const struct dri_extension card_extensions[] = {
 346    {"GL_ARB_multisample", GL_ARB_multisample_functions},
 347    {"GL_ARB_multitexture", NULL},
 348    {"GL_ARB_point_parameters", GL_ARB_point_parameters_functions},
 349    {"GL_NV_point_sprite", GL_NV_point_sprite_functions},
 350    {"GL_ARB_texture_border_clamp", NULL},
 351    {"GL_ARB_texture_compression", GL_ARB_texture_compression_functions},
 352    {"GL_ARB_texture_cube_map", NULL},
 353    {"GL_ARB_texture_env_add", NULL},
 354    {"GL_ARB_texture_env_combine", NULL},
 355    {"GL_ARB_texture_env_crossbar", NULL},
 356    {"GL_ARB_texture_env_dot3", NULL},
 357    {"GL_ARB_texture_mirrored_repeat", NULL},
 358    {"GL_ARB_texture_non_power_of_two",   NULL },
 359    {"GL_ARB_texture_rectangle", NULL},
 360    {"GL_NV_texture_rectangle", NULL},
 361    {"GL_EXT_texture_rectangle", NULL},
 362    {"GL_ARB_point_parameters", NULL},
 363    {"GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions},
 364    {"GL_ARB_vertex_program", GL_ARB_vertex_program_functions},
 365    {"GL_ARB_window_pos", GL_ARB_window_pos_functions},
 366    {"GL_EXT_blend_color", GL_EXT_blend_color_functions},
 367    {"GL_EXT_blend_equation_separate",
 368     GL_EXT_blend_equation_separate_functions},
 369    {"GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions},
 370    {"GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions},
 371    {"GL_EXT_blend_logic_op", NULL},
 372    {"GL_EXT_blend_subtract", NULL},
 373    {"GL_EXT_cull_vertex", GL_EXT_cull_vertex_functions},
 374    {"GL_EXT_fog_coord", GL_EXT_fog_coord_functions},
 375    {"GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions},
 376    {"GL_ATI_separate_stencil", GL_ATI_separate_stencil_functions},
 377 #if 1                           /* XXX FBO temporary? */
 378    {"GL_EXT_packed_depth_stencil", NULL},
 379 #endif
 380    {"GL_EXT_secondary_color", GL_EXT_secondary_color_functions},
 381    {"GL_EXT_stencil_wrap", NULL},
 382    {"GL_EXT_texture_edge_clamp", NULL},
 383    {"GL_EXT_texture_env_combine", NULL},
 384    {"GL_EXT_texture_env_dot3", NULL},
 385    {"GL_EXT_texture_filter_anisotropic", NULL},
 386    {"GL_EXT_texture_lod_bias", NULL},
 387    {"GL_3DFX_texture_compression_FXT1", NULL},
 388    {"GL_APPLE_client_storage", NULL},
 389    {"GL_MESA_pack_invert", NULL},
 390    {"GL_MESA_ycbcr_texture", NULL},
 391    {"GL_NV_blend_square", NULL},
 392    {"GL_NV_vertex_program", GL_NV_vertex_program_functions},
 393    {"GL_NV_vertex_program1_1", NULL},
 394    { "GL_SGIS_generate_mipmap", NULL },
 395    {NULL, NULL}
 396 };
 397
 398 static const struct dri_extension brw_extensions[] = {
 399    { "GL_ARB_shading_language_100",       GL_VERSION_2_0_functions},
 400    { "GL_ARB_shading_language_120",       GL_VERSION_2_1_functions},
 401    { "GL_ARB_shader_objects",             GL_ARB_shader_objects_functions},
 402    { "GL_ARB_vertex_shader",              GL_ARB_vertex_shader_functions},
 403    { "GL_ARB_point_sprite",               NULL},
 404    { "GL_ARB_fragment_shader",            NULL },
 405    { "GL_ARB_draw_buffers",               NULL },
 406    { "GL_ARB_depth_texture",              NULL },
 407    { "GL_ARB_fragment_program",           NULL },
 408    { "GL_ARB_shadow",                     NULL },
 409    { "GL_EXT_shadow_funcs",               NULL },
 410    { "GL_ARB_fragment_program_shadow",    NULL },
 411    /* ARB extn won't work if not enabled */
 412    { "GL_SGIX_depth_texture",             NULL },
 413    { "GL_EXT_texture_sRGB",               NULL},
 414    { NULL,                                NULL }
 415 };
 416
 417 #ifdef I915_MMIO_READ
 418 static const struct dri_extension arb_oc_extensions[] = {
 419    {"GL_ARB_occlusion_query",            GL_ARB_occlusion_query_functions},
 420    {NULL, NULL}
 421 };
 422 #endif
 423
 424 static const struct dri_extension ttm_extensions[] = {
 425    {"GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions},
 426    {"GL_ARB_pixel_buffer_object", NULL},
 427    {NULL, NULL}
 428 };
 429
 430 /**
 431  * Initializes potential list of extensions if ctx == NULL, or actually enables
 432  * extensions for a context.
 433  */
 434 void intelInitExtensions(GLcontext *ctx, GLboolean enable_imaging)
 435 {
 436    struct intel_context *intel = ctx?intel_context(ctx):NULL;
 437
 438    /* Disable imaging extension until convolution is working in teximage paths.
 439     */
 440    enable_imaging = GL_FALSE;
 441
 442    driInitExtensions(ctx, card_extensions, enable_imaging);
 443
 444    if (intel == NULL || intel->ttm)
 445       driInitExtensions(ctx, ttm_extensions, GL_FALSE);
 446
 447 #ifdef I915_MMIO_READ
 448    if (intel == NULL ||
 449        (IS_965(intel->intelScreen->deviceID) &&
 450         intel->intelScreen->drmMinor >= 8))
 451       driInitExtensions(ctx, arb_oc_extensions, GL_FALSE);
 452 #endif
 453
 454    if (intel == NULL || IS_965(intel->intelScreen->deviceID))
 455       driInitExtensions(ctx, brw_extensions, GL_FALSE);
 456 }
 457
 458 static const struct dri_debug_control debug_control[] = {
 459    { "tex",   DEBUG_TEXTURE},
 460    { "state", DEBUG_STATE},
 461    { "ioctl", DEBUG_IOCTL},
 462    { "blit",  DEBUG_BLIT},
 463    { "mip",   DEBUG_MIPTREE},
 464    { "fall",  DEBUG_FALLBACKS},
 465    { "verb",  DEBUG_VERBOSE},
 466    { "bat",   DEBUG_BATCH},
 467    { "pix",   DEBUG_PIXEL},
 468    { "buf",   DEBUG_BUFMGR},
 469    { "reg",   DEBUG_REGION},
 470    { "fbo",   DEBUG_FBO},
 471    { "lock",  DEBUG_LOCK},
 472    { "sync",  DEBUG_SYNC},
 473    { "prim",  DEBUG_PRIMS },
 474    { "vert",  DEBUG_VERTS },
 475    { "dri",   DEBUG_DRI },
 476    { "dma",   DEBUG_DMA },
 477    { "san",   DEBUG_SANITY },
 478    { "sleep", DEBUG_SLEEP },
 479    { "stats", DEBUG_STATS },
 480    { "tile",  DEBUG_TILE },
 481    { "sing",  DEBUG_SINGLE_THREAD },
 482    { "thre",  DEBUG_SINGLE_THREAD },
 483    { "wm",    DEBUG_WM },
 484    { "urb",   DEBUG_URB },
 485    { "vs",    DEBUG_VS },
 486    { NULL,    0 }
 487 };
 488
 489
 490 static void
 491 intelInvalidateState(GLcontext * ctx, GLuint new_state)
 492 {
 493     struct intel_context *intel = intel_context(ctx);
 494
 495    _swrast_InvalidateState(ctx, new_state);
 496    _swsetup_InvalidateState(ctx, new_state);
 497    _vbo_InvalidateState(ctx, new_state);
 498    _tnl_InvalidateState(ctx, new_state);
 499    _tnl_invalidate_vertex_state(ctx, new_state);
 500
 501    intel->NewGLState |= new_state;
 502
 503    if (intel->vtbl.invalidate_state)
 504       intel->vtbl.invalidate_state( intel, new_state );
 505 }
 506
 507
 508 void
 509 intelFlush(GLcontext * ctx)
 510 {
 511    struct intel_context *intel = intel_context(ctx);
 512
 513    if (intel->Fallback)
 514       _swrast_flush(ctx);
 515
 516    if (!IS_965(intel->intelScreen->deviceID))
 517       INTEL_FIREVERTICES(intel);
 518
 519    /* Emit a flush so that any frontbuffer rendering that might have occurred
 520     * lands onscreen in a timely manner, even if the X Server doesn't trigger
 521     * a flush for us.
 522     */
 523    intel_batchbuffer_emit_mi_flush(intel->batch);
 524
 525    if (intel->batch->map != intel->batch->ptr)
 526       intel_batchbuffer_flush(intel->batch);
 527 }
 528
 529 void
 530 intelFinish(GLcontext * ctx)
 531 {
 532    struct gl_framebuffer *fb = ctx->DrawBuffer;
 533    int i;
 534
 535    intelFlush(ctx);
 536
 537    for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
 538        struct intel_renderbuffer *irb;
 539
 540        irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]);
 541
 542        if (irb->region)
 543           dri_bo_wait_rendering(irb->region->buffer);
 544    }
 545    if (fb->_DepthBuffer) {
 546       /* XXX: Wait on buffer idle */
 547    }
 548 }
 549
 550 #ifdef I915_MMIO_READ
 551 static void
 552 intelBeginQuery(GLcontext *ctx, GLenum target, struct gl_query_object *q)
 553 {
 554         struct intel_context *intel = intel_context( ctx );
 555         struct drm_i915_mmio io = {
 556                 .read_write = I915_MMIO_READ,
 557                 .reg = MMIO_REGS_PS_DEPTH_COUNT,
 558                 .data = &q->Result
 559         };
 560         intel->stats_wm++;
 561         intelFinish(&intel->ctx);
 562         drmCommandWrite(intel->driFd, DRM_I915_MMIO, &io, sizeof(io));
 563 }
 564
 565 static void
 566 intelEndQuery(GLcontext *ctx, GLenum target, struct gl_query_object *q)
 567 {
 568         struct intel_context *intel = intel_context( ctx );
 569         GLuint64EXT tmp;
 570         struct drm_i915_mmio io = {
 571                 .read_write = I915_MMIO_READ,
 572                 .reg = MMIO_REGS_PS_DEPTH_COUNT,
 573                 .data = &tmp
 574         };
 575         intelFinish(&intel->ctx);
 576         drmCommandWrite(intel->driFd, DRM_I915_MMIO, &io, sizeof(io));
 577         q->Result = tmp - q->Result;
 578         q->Ready = GL_TRUE;
 579         intel->stats_wm--;
 580 }
 581 #endif
 582
 583 void
 584 intelInitDriverFunctions(struct dd_function_table *functions)
 585 {
 586    _mesa_init_driver_functions(functions);
 587
 588    functions->Flush = intelFlush;
 589    functions->Finish = intelFinish;
 590    functions->GetString = intelGetString;
 591    functions->UpdateState = intelInvalidateState;
 592    functions->Viewport = intel_viewport;
 593
 594    functions->CopyColorTable = _swrast_CopyColorTable;
 595    functions->CopyColorSubTable = _swrast_CopyColorSubTable;
 596    functions->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
 597    functions->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
 598
 599 #ifdef I915_MMIO_READ
 600    functions->BeginQuery = intelBeginQuery;
 601    functions->EndQuery = intelEndQuery;
 602 #endif
 603
 604    intelInitTextureFuncs(functions);
 605    intelInitStateFuncs(functions);
 606    intelInitBufferFuncs(functions);
 607    intelInitPixelFuncs(functions);
 608 }
 609
 610
 611 GLboolean
 612 intelInitContext(struct intel_context *intel,
 613                  const __GLcontextModes * mesaVis,
 614                  __DRIcontextPrivate * driContextPriv,
 615                  void *sharedContextPrivate,
 616                  struct dd_function_table *functions)
 617 {
 618    GLcontext *ctx = &intel->ctx;
 619    GLcontext *shareCtx = (GLcontext *) sharedContextPrivate;
 620    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 621    intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
 622    int fthrottle_mode;
 623
 624    if (!_mesa_initialize_context(&intel->ctx, mesaVis, shareCtx,
 625                                  functions, (void *) intel)) {
 626       _mesa_printf("%s: failed to init mesa context\n", __FUNCTION__);
 627       return GL_FALSE;
 628    }
 629
 630    driContextPriv->driverPrivate = intel;
 631    intel->intelScreen = intelScreen;
 632    intel->driScreen = sPriv;
 633    intel->sarea = intelScreen->sarea;
 634    intel->driContext = driContextPriv;
 635
 636    /* Dri stuff */
 637    intel->hHWContext = driContextPriv->hHWContext;
 638    intel->driFd = sPriv->fd;
 639    intel->driHwLock = sPriv->lock;
 640
 641    intel->width = intelScreen->width;
 642    intel->height = intelScreen->height;
 643
 644    driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
 645                        intel->driScreen->myNum,
 646                        IS_965(intelScreen->deviceID) ? "i965" : "i915");
 647    if (intelScreen->deviceID == PCI_CHIP_I865_G)
 648       intel->maxBatchSize = 4096;
 649    else
 650       intel->maxBatchSize = BATCH_SZ;
 651
 652    intel->bufmgr = intelScreen->bufmgr;
 653    intel->ttm = intelScreen->ttm;
 654    if (intel->ttm) {
 655       int bo_reuse_mode;
 656
 657       bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse");
 658       switch (bo_reuse_mode) {
 659       case DRI_CONF_BO_REUSE_DISABLED:
 660          break;
 661       case DRI_CONF_BO_REUSE_ALL:
 662          intel_bufmgr_gem_enable_reuse(intel->bufmgr);
 663          break;
 664       }
 665    }
 666
 667    ctx->Const.MaxTextureMaxAnisotropy = 2.0;
 668
 669    /* This doesn't yet catch all non-conformant rendering, but it's a
 670     * start.
 671     */
 672    if (getenv("INTEL_STRICT_CONFORMANCE")) {
 673       intel->strict_conformance = 1;
 674    }
 675
 676    if (intel->strict_conformance) {
 677       ctx->Const.MinLineWidth = 1.0;
 678       ctx->Const.MinLineWidthAA = 1.0;
 679       ctx->Const.MaxLineWidth = 1.0;
 680       ctx->Const.MaxLineWidthAA = 1.0;
 681       ctx->Const.LineWidthGranularity = 1.0;
 682    }
 683    else {
 684       ctx->Const.MinLineWidth = 1.0;
 685       ctx->Const.MinLineWidthAA = 1.0;
 686       ctx->Const.MaxLineWidth = 5.0;
 687       ctx->Const.MaxLineWidthAA = 5.0;
 688       ctx->Const.LineWidthGranularity = 0.5;
 689    }
 690
 691    ctx->Const.MinPointSize = 1.0;
 692    ctx->Const.MinPointSizeAA = 1.0;
 693    ctx->Const.MaxPointSize = 255.0;
 694    ctx->Const.MaxPointSizeAA = 3.0;
 695    ctx->Const.PointSizeGranularity = 1.0;
 696
 697    /* reinitialize the context point state.
 698     * It depend on constants in __GLcontextRec::Const
 699     */
 700    _mesa_init_point(ctx);
 701
 702    ctx->Const.MaxColorAttachments = 4;  /* XXX FBO: review this */
 703
 704    /* Initialize the software rasterizer and helper modules. */
 705    _swrast_CreateContext(ctx);
 706    _vbo_CreateContext(ctx);
 707    _tnl_CreateContext(ctx);
 708    _swsetup_CreateContext(ctx);
 709
 710    /* Configure swrast to match hardware characteristics: */
 711    _swrast_allow_pixel_fog(ctx, GL_FALSE);
 712    _swrast_allow_vertex_fog(ctx, GL_TRUE);
 713
 714    intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
 715    intel->hw_stipple = 1;
 716
 717    /* XXX FBO: this doesn't seem to be used anywhere */
 718    switch (mesaVis->depthBits) {
 719    case 0:                     /* what to do in this case? */
 720    case 16:
 721       intel->polygon_offset_scale = 1.0;
 722       break;
 723    case 24:
 724       intel->polygon_offset_scale = 2.0;     /* req'd to pass glean */
 725       break;
 726    default:
 727       assert(0);
 728       break;
 729    }
 730
 731    if (IS_965(intelScreen->deviceID))
 732       intel->polygon_offset_scale /= 0xffff;
 733
 734    intel->RenderIndex = ~0;
 735
 736    fthrottle_mode = driQueryOptioni(&intel->optionCache, "fthrottle_mode");
 737    intel->irqsEmitted = 0;
 738
 739    intel->do_irqs = (intel->intelScreen->irq_active &&
 740                      fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS);
 741
 742    intel->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);
 743
 744    _math_matrix_ctr(&intel->ViewportMatrix);
 745
 746    if (IS_965(intelScreen->deviceID) && !intel->intelScreen->irq_active) {
 747       _mesa_printf("IRQs not active.  Exiting\n");
 748       exit(1);
 749    }
 750
 751    intelInitExtensions(ctx, GL_FALSE);
 752
 753    INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
 754    if (INTEL_DEBUG & DEBUG_BUFMGR)
 755       dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE);
 756
 757    if (!sPriv->dri2.enabled)
 758       intel_recreate_static_regions(intel);
 759
 760    intel->batch = intel_batchbuffer_alloc(intel);
 761
 762    intel_bufferobj_init(intel);
 763    intel_fbo_init(intel);
 764
 765    if (intel->ctx.Mesa_DXTn) {
 766       _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 767       _mesa_enable_extension(ctx, "GL_S3_s3tc");
 768    }
 769    else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) {
 770       _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 771    }
 772
 773    intel->prim.primitive = ~0;
 774
 775    /* Force all software fallbacks */
 776    if (driQueryOptionb(&intel->optionCache, "no_rast")) {
 777       fprintf(stderr, "disabling 3D rasterization\n");
 778       intel->no_rast = 1;
 779    }
 780
 781    /* Disable all hardware rendering (skip emitting batches and fences/waits
 782     * to the kernel)
 783     */
 784    intel->no_hw = getenv("INTEL_NO_HW") != NULL;
 785
 786    return GL_TRUE;
 787 }
 788
 789 void
 790 intelDestroyContext(__DRIcontextPrivate * driContextPriv)
 791 {
 792    struct intel_context *intel =
 793       (struct intel_context *) driContextPriv->driverPrivate;
 794
 795    assert(intel);               /* should never be null */
 796    if (intel) {
 797       GLboolean release_texture_heaps;
 798
 799       INTEL_FIREVERTICES(intel);
 800
 801       intel->vtbl.destroy(intel);
 802
 803       release_texture_heaps = (intel->ctx.Shared->RefCount == 1);
 804       _swsetup_DestroyContext(&intel->ctx);
 805       _tnl_DestroyContext(&intel->ctx);
 806       _vbo_DestroyContext(&intel->ctx);
 807
 808       _swrast_DestroyContext(&intel->ctx);
 809       intel->Fallback = 0;      /* don't call _swrast_Flush later */
 810
 811       intel_batchbuffer_free(intel->batch);
 812       free(intel->prim.vb);
 813
 814       if (release_texture_heaps) {
 815          /* This share group is about to go away, free our private
 816           * texture object data.
 817           */
 818          if (INTEL_DEBUG & DEBUG_TEXTURE)
 819             fprintf(stderr, "do something to free texture heaps\n");
 820       }
 821
 822       /* free the Mesa context */
 823       _mesa_free_context_data(&intel->ctx);
 824
 825       dri_bufmgr_destroy(intel->bufmgr);
 826    }
 827 }
 828
 829 GLboolean
 830 intelUnbindContext(__DRIcontextPrivate * driContextPriv)
 831 {
 832    return GL_TRUE;
 833 }
 834
 835 GLboolean
 836 intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
 837                  __DRIdrawablePrivate * driDrawPriv,
 838                  __DRIdrawablePrivate * driReadPriv)
 839 {
 840    __DRIscreenPrivate *psp = driDrawPriv->driScreenPriv;
 841
 842    if (driContextPriv) {
 843       struct intel_context *intel =
 844          (struct intel_context *) driContextPriv->driverPrivate;
 845       struct intel_framebuffer *intel_fb =
 846          (struct intel_framebuffer *) driDrawPriv->driverPrivate;
 847       GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate;
 848
 849       if (driContextPriv->driScreenPriv->dri2.enabled) {
 850           intel_update_renderbuffers(driContextPriv, driDrawPriv);
 851           if (driDrawPriv != driReadPriv)
 852               intel_update_renderbuffers(driContextPriv, driReadPriv);
 853       } else {
 854           /* XXX FBO temporary fix-ups! */
 855           /* if the renderbuffers don't have regions, init them from the context */
 856          struct intel_renderbuffer *irbDepth
 857             = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
 858          struct intel_renderbuffer *irbStencil
 859             = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
 860
 861          if (intel_fb->color_rb[0]) {
 862             intel_renderbuffer_set_region(intel_fb->color_rb[0],
 863                                           intel->front_region);
 864          }
 865          if (intel_fb->color_rb[1]) {
 866             intel_renderbuffer_set_region(intel_fb->color_rb[1],
 867                                           intel->back_region);
 868          }
 869 #if 0
 870          if (intel_fb->color_rb[2]) {
 871             intel_renderbuffer_set_region(intel_fb->color_rb[2],
 872                                           intel->third_region);
 873          }
 874 #endif
 875          if (irbDepth) {
 876             intel_renderbuffer_set_region(irbDepth, intel->depth_region);
 877          }
 878          if (irbStencil) {
 879             intel_renderbuffer_set_region(irbStencil, intel->depth_region);
 880          }
 881       }
 882
 883       /* set GLframebuffer size to match window, if needed */
 884       driUpdateFramebufferSize(&intel->ctx, driDrawPriv);
 885
 886       if (driReadPriv != driDrawPriv) {
 887          driUpdateFramebufferSize(&intel->ctx, driReadPriv);
 888       }
 889
 890       _mesa_make_current(&intel->ctx, &intel_fb->Base, readFb);
 891
 892       /* The drawbuffer won't always be updated by _mesa_make_current:
 893        */
 894       if (intel->ctx.DrawBuffer == &intel_fb->Base) {
 895
 896          if (intel->driReadDrawable != driReadPriv)
 897             intel->driReadDrawable = driReadPriv;
 898
 899          if (intel->driDrawable != driDrawPriv) {
 900             if (driDrawPriv->swap_interval == (unsigned)-1) {
 901                int i;
 902
 903                driDrawPriv->vblFlags = (intel->intelScreen->irq_active != 0)
 904                   ? driGetDefaultVBlankFlags(&intel->optionCache)
 905                  : VBLANK_FLAG_NO_IRQ;
 906
 907                (*psp->systemTime->getUST) (&intel_fb->swap_ust);
 908                driDrawableInitVBlank(driDrawPriv);
 909                intel_fb->vbl_waited = driDrawPriv->vblSeq;
 910
 911                for (i = 0; i < (intel->intelScreen->third.handle ? 3 : 2); i++) {
 912                   if (intel_fb->color_rb[i])
 913                      intel_fb->color_rb[i]->vbl_pending = driDrawPriv->vblSeq;
 914                }
 915             }
 916             intel->driDrawable = driDrawPriv;
 917             intelWindowMoved(intel);
 918          }
 919
 920          intel_draw_buffer(&intel->ctx, &intel_fb->Base);
 921       }
 922    }
 923    else {
 924       _mesa_make_current(NULL, NULL, NULL);
 925    }
 926
 927    return GL_TRUE;
 928 }
 929
 930 static void
 931 intelContendedLock(struct intel_context *intel, GLuint flags)
 932 {
 933    __DRIdrawablePrivate *dPriv = intel->driDrawable;
 934    __DRIscreenPrivate *sPriv = intel->driScreen;
 935    volatile struct drm_i915_sarea *sarea = intel->sarea;
 936    int me = intel->hHWContext;
 937
 938    drmGetLock(intel->driFd, intel->hHWContext, flags);
 939    intel->locked = 1;
 940
 941    if (INTEL_DEBUG & DEBUG_LOCK)
 942       _mesa_printf("%s - got contended lock\n", __progname);
 943
 944    /* If the window moved, may need to set a new cliprect now.
 945     *
 946     * NOTE: This releases and regains the hw lock, so all state
 947     * checking must be done *after* this call:
 948     */
 949    if (dPriv)
 950        DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
 951
 952    if (sarea && sarea->ctxOwner != me) {
 953       if (INTEL_DEBUG & DEBUG_BUFMGR) {
 954          fprintf(stderr, "Lost Context: sarea->ctxOwner %x me %x\n",
 955                  sarea->ctxOwner, me);
 956       }
 957       sarea->ctxOwner = me;
 958    }
 959
 960    /* If the last consumer of the texture memory wasn't us, notify the fake
 961     * bufmgr and record the new owner.  We should have the memory shared
 962     * between contexts of a single fake bufmgr, but this will at least make
 963     * things correct for now.
 964     */
 965    if (!intel->ttm && sarea->texAge != intel->hHWContext) {
 966       sarea->texAge = intel->hHWContext;
 967       intel_bufmgr_fake_contended_lock_take(intel->bufmgr);
 968       if (INTEL_DEBUG & DEBUG_BATCH)
 969          intel_decode_context_reset();
 970       if (INTEL_DEBUG & DEBUG_BUFMGR)
 971          fprintf(stderr, "Lost Textures: sarea->texAge %x hw context %x\n",
 972                  sarea->ctxOwner, intel->hHWContext);
 973    }
 974
 975    if (sarea->width != intel->width || sarea->height != intel->height) {
 976        int numClipRects = intel->numClipRects;
 977
 978        /*
 979         * FIXME: Really only need to do this when drawing to a
 980         * common back- or front buffer.
 981         */
 982
 983        /*
 984         * This will essentially drop the outstanding batchbuffer on
 985         * the floor.
 986         */
 987        intel->numClipRects = 0;
 988
 989        if (intel->Fallback)
 990            _swrast_flush(&intel->ctx);
 991
 992        if (!IS_965(intel->intelScreen->deviceID))
 993            INTEL_FIREVERTICES(intel);
 994
 995        if (intel->batch->map != intel->batch->ptr)
 996            intel_batchbuffer_flush(intel->batch);
 997
 998        intel->numClipRects = numClipRects;
 999
1000        /* force window update */
1001        intel->lastStamp = 0;
1002
1003        intel->width = sarea->width;
1004        intel->height = sarea->height;
1005    }
1006
1007    /* Drawable changed?
1008     */
1009    if (dPriv && intel->lastStamp != dPriv->lastStamp) {
1010        intelWindowMoved(intel);
1011        intel->lastStamp = dPriv->lastStamp;
1012    }
1013 }
1014
1015
1016 _glthread_DECLARE_STATIC_MUTEX(lockMutex);
1017
1018 /* Lock the hardware and validate our state.
1019  */
1020 void LOCK_HARDWARE( struct intel_context *intel )
1021 {
1022     __DRIdrawable *dPriv = intel->driDrawable;
1023     __DRIscreen *sPriv = intel->driScreen;
1024     char __ret = 0;
1025     struct intel_framebuffer *intel_fb = NULL;
1026     struct intel_renderbuffer *intel_rb = NULL;
1027
1028     _glthread_LOCK_MUTEX(lockMutex);
1029     assert(!intel->locked);
1030     intel->locked = 1;
1031
1032     if (intel->driDrawable) {
1033        intel_fb = intel->driDrawable->driverPrivate;
1034
1035        if (intel_fb)
1036           intel_rb =
1037              intel_get_renderbuffer(&intel_fb->Base,
1038                                     intel_fb->Base._ColorDrawBufferIndexes[0]);
1039     }
1040
1041     if (intel_rb && dPriv->vblFlags &&
1042         !(dPriv->vblFlags & VBLANK_FLAG_NO_IRQ) &&
1043         (intel_fb->vbl_waited - intel_rb->vbl_pending) > (1<<23)) {
1044         drmVBlank vbl;
1045
1046         vbl.request.type = DRM_VBLANK_ABSOLUTE;
1047
1048         if ( dPriv->vblFlags & VBLANK_FLAG_SECONDARY ) {
1049             vbl.request.type |= DRM_VBLANK_SECONDARY;
1050         }
1051
1052         vbl.request.sequence = intel_rb->vbl_pending;
1053         drmWaitVBlank(intel->driFd, &vbl);
1054         intel_fb->vbl_waited = vbl.reply.sequence;
1055     }
1056
1057     if (!sPriv->dri2.enabled) {
1058         DRM_CAS(intel->driHwLock, intel->hHWContext,
1059                 (DRM_LOCK_HELD|intel->hHWContext), __ret);
1060
1061         if (__ret)
1062             intelContendedLock( intel, 0 );
1063     }
1064
1065
1066     if (INTEL_DEBUG & DEBUG_LOCK)
1067       _mesa_printf("%s - locked\n", __progname);
1068 }
1069
1070
1071 /* Unlock the hardware using the global current context
1072  */
1073 void UNLOCK_HARDWARE( struct intel_context *intel )
1074 {
1075     __DRIscreen *sPriv = intel->driScreen;
1076
1077    intel->vtbl.note_unlock( intel );
1078    intel->locked = 0;
1079
1080    if (!sPriv->dri2.enabled)
1081       DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext);
1082
1083    _glthread_UNLOCK_MUTEX(lockMutex);
1084
1085    if (INTEL_DEBUG & DEBUG_LOCK)
1086       _mesa_printf("%s - unlocked\n", __progname);
1087
1088    /**
1089     * Nothing should be left in batch outside of LOCK/UNLOCK which references
1090     * cliprects.
1091     */
1092    if (intel->batch->cliprect_mode == REFERENCES_CLIPRECTS)
1093       intel_batchbuffer_flush(intel->batch);
1094 }
1095