src/mesa/drivers/dri/intel/intel_screen.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 #include "main/glheader.h"
  29 #include "main/context.h"
  30 #include "main/framebuffer.h"
  31 #include "main/renderbuffer.h"
  32 #include "main/hash.h"
  33
  34 #include "utils.h"
  35 #include "xmlpool.h"
  36
  37 #include "intel_batchbuffer.h"
  38 #include "intel_buffers.h"
  39 #include "intel_bufmgr.h"
  40 #include "intel_chipset.h"
  41 #include "intel_fbo.h"
  42 #include "intel_screen.h"
  43 #include "intel_tex.h"
  44 #include "intel_regions.h"
  45
  46 #include "i915_drm.h"
  47
  48 #define DRI_CONF_TEXTURE_TILING(def) \
  49         DRI_CONF_OPT_BEGIN(texture_tiling, bool, def)           \
  50                 DRI_CONF_DESC(en, "Enable texture tiling")      \
  51         DRI_CONF_OPT_END                                        \
  52
  53 PUBLIC const char __driConfigOptions[] =
  54    DRI_CONF_BEGIN
  55    DRI_CONF_SECTION_PERFORMANCE
  56       DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
  57       /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
  58        * DRI_CONF_BO_REUSE_ALL
  59        */
  60       DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
  61          DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
  62             DRI_CONF_ENUM(0, "Disable buffer object reuse")
  63             DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
  64          DRI_CONF_DESC_END
  65       DRI_CONF_OPT_END
  66
  67 #ifdef I915
  68      DRI_CONF_TEXTURE_TILING(false)
  69 #else
  70      DRI_CONF_TEXTURE_TILING(true)
  71 #endif
  72
  73       DRI_CONF_OPT_BEGIN(early_z, bool, false)
  74          DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
  75       DRI_CONF_OPT_END
  76
  77       DRI_CONF_OPT_BEGIN(fragment_shader, bool, false)
  78          DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
  79       DRI_CONF_OPT_END
  80
  81    DRI_CONF_SECTION_END
  82    DRI_CONF_SECTION_QUALITY
  83       DRI_CONF_FORCE_S3TC_ENABLE(false)
  84       DRI_CONF_ALLOW_LARGE_TEXTURES(2)
  85    DRI_CONF_SECTION_END
  86    DRI_CONF_SECTION_DEBUG
  87      DRI_CONF_NO_RAST(false)
  88      DRI_CONF_ALWAYS_FLUSH_BATCH(false)
  89      DRI_CONF_ALWAYS_FLUSH_CACHE(false)
  90
  91       DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)
  92          DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
  93       DRI_CONF_OPT_END
  94    DRI_CONF_SECTION_END
  95 DRI_CONF_END;
  96
  97 const GLuint __driNConfigOptions = 11;
  98
  99 #ifdef USE_NEW_INTERFACE
 100 static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
 101 #endif /*USE_NEW_INTERFACE */
 102
 103 static const __DRItexOffsetExtension intelTexOffsetExtension = {
 104    { __DRI_TEX_OFFSET },
 105    intelSetTexOffset,
 106 };
 107
 108 static const __DRItexBufferExtension intelTexBufferExtension = {
 109     { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
 110    intelSetTexBuffer,
 111    intelSetTexBuffer2,
 112 };
 113
 114 static void
 115 intelDRI2Flush(__DRIdrawable *drawable)
 116 {
 117    struct intel_context *intel = drawable->driContextPriv->driverPrivate;
 118
 119    if (intel->gen < 4)
 120       INTEL_FIREVERTICES(intel);
 121
 122    if (intel->batch->map != intel->batch->ptr)
 123       intel_batchbuffer_flush(intel->batch);
 124 }
 125
 126 static void
 127 intelDRI2Invalidate(__DRIdrawable *drawable)
 128 {
 129    struct intel_context *intel = drawable->driContextPriv->driverPrivate;
 130
 131    intel->using_dri2_swapbuffers = GL_TRUE;
 132    dri2InvalidateDrawable(drawable);
 133 }
 134
 135 static const struct __DRI2flushExtensionRec intelFlushExtension = {
 136     { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
 137     intelDRI2Flush,
 138     intelDRI2Invalidate,
 139 };
 140
 141 static __DRIimage *
 142 intel_create_image_from_name(__DRIcontext *context,
 143                              int width, int height, int format,
 144                              int name, int pitch, void *loaderPrivate)
 145 {
 146     __DRIimage *image;
 147     struct intel_context *intel = context->driverPrivate;
 148     int cpp;
 149
 150     image = CALLOC(sizeof *image);
 151     if (image == NULL)
 152         return NULL;
 153
 154     switch (format) {
 155     case __DRI_IMAGE_FORMAT_RGB565:
 156        image->format = MESA_FORMAT_RGB565;
 157        image->internal_format = GL_RGB;
 158        image->data_type = GL_UNSIGNED_BYTE;
 159        break;
 160     case __DRI_IMAGE_FORMAT_XRGB8888:
 161        image->format = MESA_FORMAT_XRGB8888;
 162        image->internal_format = GL_RGB;
 163        image->data_type = GL_UNSIGNED_BYTE;
 164        break;
 165     case __DRI_IMAGE_FORMAT_ARGB8888:
 166        image->format = MESA_FORMAT_ARGB8888;
 167        image->internal_format = GL_RGBA;
 168        image->data_type = GL_UNSIGNED_BYTE;
 169        break;
 170     default:
 171        free(image);
 172        return NULL;
 173     }
 174
 175     image->data = loaderPrivate;
 176     cpp = _mesa_get_format_bytes(image->format);
 177
 178     image->region = intel_region_alloc_for_handle(intel, cpp, width, height,
 179                                                   pitch, name, "image");
 180     if (image->region == NULL) {
 181        FREE(image);
 182        return NULL;
 183     }
 184
 185     return image;
 186 }
 187
 188 static __DRIimage *
 189 intel_create_image_from_renderbuffer(__DRIcontext *context,
 190                                      int renderbuffer, void *loaderPrivate)
 191 {
 192    __DRIimage *image;
 193    struct intel_context *intel = context->driverPrivate;
 194    struct gl_renderbuffer *rb;
 195    struct intel_renderbuffer *irb;
 196
 197    rb = intel->ctx.CurrentRenderbuffer;
 198    if (!rb) {
 199       _mesa_error(&intel->ctx,
 200                   GL_INVALID_OPERATION, "glRenderbufferExternalMESA");
 201       return NULL;
 202    }
 203
 204    irb = intel_renderbuffer(rb);
 205    image = CALLOC(sizeof *image);
 206    if (image == NULL)
 207       return NULL;
 208
 209    image->internal_format = rb->InternalFormat;
 210    image->format = rb->Format;
 211    image->data_type = rb->DataType;
 212    image->data = loaderPrivate;
 213    intel_region_reference(&image->region, irb->region);
 214
 215    return image;
 216 }
 217
 218 static void
 219 intel_destroy_image(__DRIimage *image)
 220 {
 221     intel_region_release(&image->region);
 222     FREE(image);
 223 }
 224
 225 static struct __DRIimageExtensionRec intelImageExtension = {
 226     { __DRI_IMAGE, __DRI_IMAGE_VERSION },
 227     intel_create_image_from_name,
 228     intel_create_image_from_renderbuffer,
 229     intel_destroy_image,
 230 };
 231
 232 static const __DRIextension *intelScreenExtensions[] = {
 233     &driReadDrawableExtension,
 234     &intelTexOffsetExtension.base,
 235     &intelTexBufferExtension.base,
 236     &intelFlushExtension.base,
 237     &intelImageExtension.base,
 238     NULL
 239 };
 240
 241 static GLboolean
 242 intel_get_param(__DRIscreen *psp, int param, int *value)
 243 {
 244    int ret;
 245    struct drm_i915_getparam gp;
 246
 247    gp.param = param;
 248    gp.value = value;
 249
 250    ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
 251    if (ret) {
 252       _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
 253       return GL_FALSE;
 254    }
 255
 256    return GL_TRUE;
 257 }
 258
 259 static void
 260 nop_callback(GLuint key, void *data, void *userData)
 261 {
 262 }
 263
 264 static void
 265 intelDestroyScreen(__DRIscreen * sPriv)
 266 {
 267    struct intel_screen *intelScreen = sPriv->private;
 268
 269    dri_bufmgr_destroy(intelScreen->bufmgr);
 270    driDestroyOptionInfo(&intelScreen->optionCache);
 271
 272    /* Some regions may still have references to them at this point, so
 273     * flush the hash table to prevent _mesa_DeleteHashTable() from
 274     * complaining about the hash not being empty; */
 275    _mesa_HashDeleteAll(intelScreen->named_regions, nop_callback, NULL);
 276    _mesa_DeleteHashTable(intelScreen->named_regions);
 277
 278    FREE(intelScreen);
 279    sPriv->private = NULL;
 280 }
 281
 282
 283 /**
 284  * This is called when we need to set up GL rendering to a new X window.
 285  */
 286 static GLboolean
 287 intelCreateBuffer(__DRIscreen * driScrnPriv,
 288                   __DRIdrawable * driDrawPriv,
 289                   const __GLcontextModes * mesaVis, GLboolean isPixmap)
 290 {
 291    struct intel_renderbuffer *rb;
 292
 293    if (isPixmap) {
 294       return GL_FALSE;          /* not implemented */
 295    }
 296    else {
 297       GLboolean swStencil = (mesaVis->stencilBits > 0 &&
 298                              mesaVis->depthBits != 24);
 299       gl_format rgbFormat;
 300
 301       struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);
 302
 303       if (!fb)
 304          return GL_FALSE;
 305
 306       _mesa_initialize_window_framebuffer(fb, mesaVis);
 307
 308       if (mesaVis->redBits == 5)
 309          rgbFormat = MESA_FORMAT_RGB565;
 310       else if (mesaVis->alphaBits == 0)
 311          rgbFormat = MESA_FORMAT_XRGB8888;
 312       else
 313          rgbFormat = MESA_FORMAT_ARGB8888;
 314
 315       /* setup the hardware-based renderbuffers */
 316       rb = intel_create_renderbuffer(rgbFormat);
 317       _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base);
 318
 319       if (mesaVis->doubleBufferMode) {
 320          rb = intel_create_renderbuffer(rgbFormat);
 321          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base);
 322       }
 323
 324       if (mesaVis->depthBits == 24) {
 325          if (mesaVis->stencilBits == 8) {
 326             /* combined depth/stencil buffer */
 327             struct intel_renderbuffer *depthStencilRb
 328                = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
 329             /* note: bind RB to two attachment points */
 330             _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthStencilRb->Base);
 331             _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &depthStencilRb->Base);
 332          } else {
 333             struct intel_renderbuffer *depthRb
 334                = intel_create_renderbuffer(MESA_FORMAT_X8_Z24);
 335             _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 336          }
 337       }
 338       else if (mesaVis->depthBits == 16) {
 339          /* just 16-bit depth buffer, no hw stencil */
 340          struct intel_renderbuffer *depthRb
 341             = intel_create_renderbuffer(MESA_FORMAT_Z16);
 342          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 343       }
 344
 345       /* now add any/all software-based renderbuffers we may need */
 346       _mesa_add_soft_renderbuffers(fb,
 347                                    GL_FALSE, /* never sw color */
 348                                    GL_FALSE, /* never sw depth */
 349                                    swStencil, mesaVis->accumRedBits > 0,
 350                                    GL_FALSE, /* never sw alpha */
 351                                    GL_FALSE  /* never sw aux */ );
 352       driDrawPriv->driverPrivate = fb;
 353
 354       return GL_TRUE;
 355    }
 356 }
 357
 358 static void
 359 intelDestroyBuffer(__DRIdrawable * driDrawPriv)
 360 {
 361     struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
 362
 363     _mesa_reference_framebuffer(&fb, NULL);
 364 }
 365
 366 /* There are probably better ways to do this, such as an
 367  * init-designated function to register chipids and createcontext
 368  * functions.
 369  */
 370 extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis,
 371                                    __DRIcontext * driContextPriv,
 372                                    void *sharedContextPrivate);
 373
 374 extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
 375                                    __DRIcontext * driContextPriv,
 376                                    void *sharedContextPrivate);
 377 extern GLboolean brwCreateContext(const __GLcontextModes * mesaVis,
 378                                   __DRIcontext * driContextPriv,
 379                                   void *sharedContextPrivate);
 380
 381 static GLboolean
 382 intelCreateContext(const __GLcontextModes * mesaVis,
 383                    __DRIcontext * driContextPriv,
 384                    void *sharedContextPrivate)
 385 {
 386    __DRIscreen *sPriv = driContextPriv->driScreenPriv;
 387    struct intel_screen *intelScreen = sPriv->private;
 388
 389 #ifdef I915
 390    if (IS_9XX(intelScreen->deviceID)) {
 391       if (!IS_965(intelScreen->deviceID)) {
 392          return i915CreateContext(mesaVis, driContextPriv,
 393                                   sharedContextPrivate);
 394       }
 395    } else {
 396       intelScreen->no_vbo = GL_TRUE;
 397       return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
 398    }
 399 #else
 400    if (IS_965(intelScreen->deviceID))
 401       return brwCreateContext(mesaVis, driContextPriv, sharedContextPrivate);
 402 #endif
 403    fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID);
 404    return GL_FALSE;
 405 }
 406
 407 static GLboolean
 408 intel_init_bufmgr(struct intel_screen *intelScreen)
 409 {
 410    __DRIscreen *spriv = intelScreen->driScrnPriv;
 411    int num_fences = 0;
 412
 413    intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL;
 414
 415    intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
 416    /* Otherwise, use the classic buffer manager. */
 417    if (intelScreen->bufmgr == NULL) {
 418       fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
 419               __func__, __LINE__);
 420       return GL_FALSE;
 421    }
 422
 423    if (intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences))
 424       intelScreen->kernel_exec_fencing = !!num_fences;
 425    else
 426       intelScreen->kernel_exec_fencing = GL_FALSE;
 427
 428    intelScreen->named_regions = _mesa_NewHashTable();
 429
 430    return GL_TRUE;
 431 }
 432
 433 /**
 434  * This is the driver specific part of the createNewScreen entry point.
 435  * Called when using DRI2.
 436  *
 437  * \return the __GLcontextModes supported by this driver
 438  */
 439 static const
 440 __DRIconfig **intelInitScreen2(__DRIscreen *psp)
 441 {
 442    struct intel_screen *intelScreen;
 443    GLenum fb_format[3];
 444    GLenum fb_type[3];
 445
 446    static const GLenum back_buffer_modes[] = {
 447        GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 448    };
 449    uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
 450    int color;
 451    __DRIconfig **configs = NULL;
 452
 453    /* Allocate the private area */
 454    intelScreen = CALLOC(sizeof *intelScreen);
 455    if (!intelScreen) {
 456       fprintf(stderr, "\nERROR!  Allocating private area failed\n");
 457       return GL_FALSE;
 458    }
 459    /* parse information in __driConfigOptions */
 460    driParseOptionInfo(&intelScreen->optionCache,
 461                       __driConfigOptions, __driNConfigOptions);
 462
 463    intelScreen->driScrnPriv = psp;
 464    psp->private = (void *) intelScreen;
 465
 466    /* Determine chipset ID */
 467    if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
 468                         &intelScreen->deviceID))
 469       return GL_FALSE;
 470
 471    if (!intel_init_bufmgr(intelScreen))
 472        return GL_FALSE;
 473
 474    psp->extensions = intelScreenExtensions;
 475
 476    msaa_samples_array[0] = 0;
 477
 478    fb_format[0] = GL_RGB;
 479    fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
 480
 481    fb_format[1] = GL_BGR;
 482    fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
 483
 484    fb_format[2] = GL_BGRA;
 485    fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
 486
 487    depth_bits[0] = 0;
 488    stencil_bits[0] = 0;
 489
 490    /* Generate a rich set of useful configs that do not include an
 491     * accumulation buffer.
 492     */
 493    for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
 494       __DRIconfig **new_configs;
 495       int depth_factor;
 496
 497       /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
 498        * buffer that has a diffferent number of bits per pixel than the color
 499        * buffer.  This isn't yet supported here.
 500        */
 501       if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
 502          depth_bits[1] = 16;
 503          stencil_bits[1] = 0;
 504       } else {
 505          depth_bits[1] = 24;
 506          stencil_bits[1] = 8;
 507       }
 508
 509       depth_factor = 2;
 510
 511       new_configs = driCreateConfigs(fb_format[color], fb_type[color],
 512                                      depth_bits,
 513                                      stencil_bits,
 514                                      depth_factor,
 515                                      back_buffer_modes,
 516                                      ARRAY_SIZE(back_buffer_modes),
 517                                      msaa_samples_array,
 518                                      ARRAY_SIZE(msaa_samples_array),
 519                                      GL_FALSE);
 520       if (configs == NULL)
 521          configs = new_configs;
 522       else
 523          configs = driConcatConfigs(configs, new_configs);
 524    }
 525
 526    /* Generate the minimum possible set of configs that include an
 527     * accumulation buffer.
 528     */
 529    for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
 530       __DRIconfig **new_configs;
 531
 532       if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
 533          depth_bits[0] = 16;
 534          stencil_bits[0] = 0;
 535       } else {
 536          depth_bits[0] = 24;
 537          stencil_bits[0] = 8;
 538       }
 539
 540       new_configs = driCreateConfigs(fb_format[color], fb_type[color],
 541                                      depth_bits, stencil_bits, 1,
 542                                      back_buffer_modes + 1, 1,
 543                                      msaa_samples_array, 1,
 544                                      GL_TRUE);
 545       if (configs == NULL)
 546          configs = new_configs;
 547       else
 548          configs = driConcatConfigs(configs, new_configs);
 549    }
 550
 551    if (configs == NULL) {
 552       fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
 553               __LINE__);
 554       return NULL;
 555    }
 556
 557    return (const __DRIconfig **)configs;
 558 }
 559
 560 const struct __DriverAPIRec driDriverAPI = {
 561    .DestroyScreen        = intelDestroyScreen,
 562    .CreateContext        = intelCreateContext,
 563    .DestroyContext       = intelDestroyContext,
 564    .CreateBuffer         = intelCreateBuffer,
 565    .DestroyBuffer        = intelDestroyBuffer,
 566    .MakeCurrent          = intelMakeCurrent,
 567    .UnbindContext        = intelUnbindContext,
 568    .InitScreen2          = intelInitScreen2,
 569 };
 570
 571 /* This is the table of extensions that the loader will dlsym() for. */
 572 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 573     &driCoreExtension.base,
 574     &driDRI2Extension.base,
 575     NULL
 576 };