src/mesa/drivers/dri/savage/savage_xmesa.c

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 #include <X11/Xlibint.h>
  27 #include <stdio.h>
  28
  29 #include "main/context.h"
  30 #include "main/context.h"
  31 #include "main/matrix.h"
  32 #include "main/framebuffer.h"
  33 #include "main/renderbuffer.h"
  34 #include "main/simple_list.h"
  35
  36 #include "utils.h"
  37
  38 #include "main/extensions.h"
  39
  40 #include "swrast/swrast.h"
  41 #include "swrast_setup/swrast_setup.h"
  42 #include "tnl/tnl.h"
  43 #include "vbo/vbo.h"
  44
  45 #include "tnl/t_pipeline.h"
  46
  47 #include "drivers/common/driverfuncs.h"
  48
  49 #include "savagedd.h"
  50 #include "savagestate.h"
  51 #include "savagetex.h"
  52 #include "savagespan.h"
  53 #include "savagetris.h"
  54 #include "savageioctl.h"
  55 #include "savage_bci.h"
  56
  57 #include "savage_dri.h"
  58
  59 #include "drirenderbuffer.h"
  60 #include "texmem.h"
  61
  62 #define need_GL_EXT_secondary_color
  63 #include "extension_helper.h"
  64
  65 #include "xmlpool.h"
  66
  67 /* Driver-specific options
  68  */
  69 #define SAVAGE_ENABLE_VDMA(def) \
  70 DRI_CONF_OPT_BEGIN(enable_vdma,bool,def) \
  71         DRI_CONF_DESC(en,"Use DMA for vertex transfers") \
  72         DRI_CONF_DESC(de,"Benutze DMA für Vertextransfers") \
  73 DRI_CONF_OPT_END
  74 #define SAVAGE_ENABLE_FASTPATH(def) \
  75 DRI_CONF_OPT_BEGIN(enable_fastpath,bool,def) \
  76         DRI_CONF_DESC(en,"Use fast path for unclipped primitives") \
  77         DRI_CONF_DESC(de,"Schneller Codepfad für ungeschnittene Polygone") \
  78 DRI_CONF_OPT_END
  79 #define SAVAGE_SYNC_FRAMES(def) \
  80 DRI_CONF_OPT_BEGIN(sync_frames,bool,def) \
  81         DRI_CONF_DESC(en,"Synchronize with graphics hardware after each frame") \
  82         DRI_CONF_DESC(de,"Synchronisiere nach jedem Frame mit Grafikhardware") \
  83 DRI_CONF_OPT_END
  84
  85 /* Configuration
  86  */
  87 PUBLIC const char __driConfigOptions[] =
  88 DRI_CONF_BEGIN
  89     DRI_CONF_SECTION_QUALITY
  90         DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
  91         DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
  92         DRI_CONF_FLOAT_DEPTH(false)
  93     DRI_CONF_SECTION_END
  94     DRI_CONF_SECTION_PERFORMANCE
  95         SAVAGE_ENABLE_VDMA(true)
  96         SAVAGE_ENABLE_FASTPATH(true)
  97         SAVAGE_SYNC_FRAMES(false)
  98         DRI_CONF_MAX_TEXTURE_UNITS(2,1,2)
  99         DRI_CONF_TEXTURE_HEAPS(DRI_CONF_TEXTURE_HEAPS_ALL)
 100         DRI_CONF_FORCE_S3TC_ENABLE(false)
 101     DRI_CONF_SECTION_END
 102     DRI_CONF_SECTION_DEBUG
 103         DRI_CONF_NO_RAST(false)
 104     DRI_CONF_SECTION_END
 105 DRI_CONF_END;
 106 static const GLuint __driNConfigOptions = 10;
 107
 108
 109 static const struct dri_debug_control debug_control[] =
 110 {
 111     { "fall",  DEBUG_FALLBACKS },
 112     { "api",   DEBUG_VERBOSE_API },
 113     { "tex",   DEBUG_VERBOSE_TEX },
 114     { "verb",  DEBUG_VERBOSE_MSG },
 115     { "dma",   DEBUG_DMA },
 116     { "state", DEBUG_STATE },
 117     { NULL,    0 }
 118 };
 119 #ifndef SAVAGE_DEBUG
 120 int SAVAGE_DEBUG = 0;
 121 #endif
 122
 123
 124 /*For time caculating test*/
 125 #if defined(DEBUG_TIME) && DEBUG_TIME
 126 struct timeval tv_s,tv_f;
 127 unsigned long time_sum=0;
 128 struct timeval tv_s1,tv_f1;
 129 #endif
 130
 131 static const struct dri_extension card_extensions[] =
 132 {
 133     { "GL_ARB_multitexture",               NULL },
 134     { "GL_EXT_stencil_wrap",               NULL },
 135     { "GL_EXT_texture_lod_bias",           NULL },
 136     { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
 137     { NULL,                                NULL }
 138 };
 139
 140 static const struct dri_extension s4_extensions[] =
 141 {
 142     { "GL_ARB_texture_env_add",            NULL },
 143     { "GL_ARB_texture_mirrored_repeat",    NULL },
 144     { NULL,                                NULL }
 145 };
 146
 147 extern struct tnl_pipeline_stage _savage_texnorm_stage;
 148 extern struct tnl_pipeline_stage _savage_render_stage;
 149
 150 static const struct tnl_pipeline_stage *savage_pipeline[] = {
 151
 152    &_tnl_vertex_transform_stage,
 153    &_tnl_normal_transform_stage,
 154    &_tnl_lighting_stage,
 155    &_tnl_fog_coordinate_stage,
 156    &_tnl_texgen_stage,
 157    &_tnl_texture_transform_stage,
 158    &_savage_texnorm_stage,
 159    &_savage_render_stage,
 160    &_tnl_render_stage,
 161    0,
 162 };
 163
 164
 165 PUBLIC const __DRIextension *savageScreenExtensions[] = {
 166     &driCoreExtension.base,
 167     &driLegacyExtension.base,
 168     &driReadDrawableExtension,
 169 };
 170
 171 static GLboolean
 172 savageInitDriver(__DRIscreenPrivate *sPriv)
 173 {
 174   savageScreenPrivate *savageScreen;
 175   SAVAGEDRIPtr         gDRIPriv = (SAVAGEDRIPtr)sPriv->pDevPriv;
 176
 177    if (sPriv->devPrivSize != sizeof(SAVAGEDRIRec)) {
 178       fprintf(stderr,"\nERROR!  sizeof(SAVAGEDRIRec) does not match passed size from device driver\n");
 179       return GL_FALSE;
 180    }
 181
 182    /* Allocate the private area */
 183    savageScreen = (savageScreenPrivate *)Xmalloc(sizeof(savageScreenPrivate));
 184    if (!savageScreen)
 185       return GL_FALSE;
 186
 187    savageScreen->driScrnPriv = sPriv;
 188    sPriv->private = (void *)savageScreen;
 189
 190    savageScreen->chipset=gDRIPriv->chipset;
 191    savageScreen->width=gDRIPriv->width;
 192    savageScreen->height=gDRIPriv->height;
 193    savageScreen->mem=gDRIPriv->mem;
 194    savageScreen->cpp=gDRIPriv->cpp;
 195    savageScreen->zpp=gDRIPriv->zpp;
 196
 197    savageScreen->agpMode=gDRIPriv->agpMode;
 198
 199    savageScreen->bufferSize=gDRIPriv->bufferSize;
 200
 201    if (gDRIPriv->cpp == 4)
 202        savageScreen->frontFormat = DV_PF_8888;
 203    else
 204        savageScreen->frontFormat = DV_PF_565;
 205    savageScreen->frontOffset=gDRIPriv->frontOffset;
 206    savageScreen->backOffset = gDRIPriv->backOffset;
 207    savageScreen->depthOffset=gDRIPriv->depthOffset;
 208
 209    savageScreen->textureOffset[SAVAGE_CARD_HEAP] =
 210                                    gDRIPriv->textureOffset;
 211    savageScreen->textureSize[SAVAGE_CARD_HEAP] =
 212                                    gDRIPriv->textureSize;
 213    savageScreen->logTextureGranularity[SAVAGE_CARD_HEAP] =
 214                                    gDRIPriv->logTextureGranularity;
 215
 216    savageScreen->textureOffset[SAVAGE_AGP_HEAP] =
 217                                    gDRIPriv->agpTextureHandle;
 218    savageScreen->textureSize[SAVAGE_AGP_HEAP] =
 219                                    gDRIPriv->agpTextureSize;
 220    savageScreen->logTextureGranularity[SAVAGE_AGP_HEAP] =
 221                                    gDRIPriv->logAgpTextureGranularity;
 222
 223    savageScreen->agpTextures.handle = gDRIPriv->agpTextureHandle;
 224    savageScreen->agpTextures.size   = gDRIPriv->agpTextureSize;
 225    if (gDRIPriv->agpTextureSize) {
 226        if (drmMap(sPriv->fd,
 227                   savageScreen->agpTextures.handle,
 228                   savageScreen->agpTextures.size,
 229                   (drmAddress *)&(savageScreen->agpTextures.map)) != 0) {
 230            Xfree(savageScreen);
 231            sPriv->private = NULL;
 232            return GL_FALSE;
 233        }
 234    } else
 235        savageScreen->agpTextures.map = NULL;
 236
 237    savageScreen->texVirtual[SAVAGE_CARD_HEAP] =
 238              (drmAddress)(((GLubyte *)sPriv->pFB)+gDRIPriv->textureOffset);
 239    savageScreen->texVirtual[SAVAGE_AGP_HEAP] =
 240                         (drmAddress)(savageScreen->agpTextures.map);
 241
 242    savageScreen->aperture.handle = gDRIPriv->apertureHandle;
 243    savageScreen->aperture.size   = gDRIPriv->apertureSize;
 244    savageScreen->aperturePitch   = gDRIPriv->aperturePitch;
 245    if (drmMap(sPriv->fd,
 246               savageScreen->aperture.handle,
 247               savageScreen->aperture.size,
 248               (drmAddress *)&savageScreen->aperture.map) != 0)
 249    {
 250       Xfree(savageScreen);
 251       sPriv->private = NULL;
 252       return GL_FALSE;
 253    }
 254
 255    savageScreen->bufs = drmMapBufs(sPriv->fd);
 256
 257    savageScreen->sarea_priv_offset = gDRIPriv->sarea_priv_offset;
 258
 259    /* parse information in __driConfigOptions */
 260    driParseOptionInfo (&savageScreen->optionCache,
 261                        __driConfigOptions, __driNConfigOptions);
 262
 263    sPriv->extensions = savageScreenExtensions;
 264
 265 #if 0
 266    savageDDFastPathInit();
 267    savageDDTrifuncInit();
 268    savageDDSetupInit();
 269 #endif
 270    return GL_TRUE;
 271 }
 272
 273 /* Accessed by dlsym from dri_mesa_init.c
 274  */
 275 static void
 276 savageDestroyScreen(__DRIscreenPrivate *sPriv)
 277 {
 278    savageScreenPrivate *savageScreen = (savageScreenPrivate *)sPriv->private;
 279
 280    if (savageScreen->bufs)
 281        drmUnmapBufs(savageScreen->bufs);
 282
 283    /* free all option information */
 284    driDestroyOptionInfo (&savageScreen->optionCache);
 285
 286    Xfree(savageScreen);
 287    sPriv->private = NULL;
 288 }
 289
 290 static GLboolean
 291 savageCreateContext( const __GLcontextModes *mesaVis,
 292                      __DRIcontextPrivate *driContextPriv,
 293                      void *sharedContextPrivate )
 294 {
 295    GLcontext *ctx, *shareCtx;
 296    savageContextPtr imesa;
 297    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 298    struct dd_function_table functions;
 299    savageScreenPrivate *savageScreen = (savageScreenPrivate *)sPriv->private;
 300    drm_savage_sarea_t *saPriv=(drm_savage_sarea_t *)(((char*)sPriv->pSAREA)+
 301                                                  savageScreen->sarea_priv_offset);
 302    int textureSize[SAVAGE_NR_TEX_HEAPS];
 303    int i;
 304    imesa = (savageContextPtr)Xcalloc(sizeof(savageContext), 1);
 305    if (!imesa) {
 306       return GL_FALSE;
 307    }
 308
 309    /* Init default driver functions then plug in savage-specific texture
 310     * functions that are needed as early as during context creation. */
 311    _mesa_init_driver_functions( &functions );
 312    savageDDInitTextureFuncs( &functions );
 313
 314    /* Allocate the Mesa context */
 315    if (sharedContextPrivate)
 316       shareCtx = ((savageContextPtr) sharedContextPrivate)->glCtx;
 317    else
 318       shareCtx = NULL;
 319    ctx = _mesa_create_context(mesaVis, shareCtx, &functions, imesa);
 320    if (!ctx) {
 321       Xfree(imesa);
 322       return GL_FALSE;
 323    }
 324    driContextPriv->driverPrivate = imesa;
 325
 326    imesa->cmdBuf.size = SAVAGE_CMDBUF_SIZE;
 327    imesa->cmdBuf.base = imesa->cmdBuf.write =
 328        malloc(SAVAGE_CMDBUF_SIZE * sizeof(drm_savage_cmd_header_t));
 329    if (!imesa->cmdBuf.base)
 330        return GL_FALSE;
 331
 332    /* Parse configuration files */
 333    driParseConfigFiles (&imesa->optionCache, &savageScreen->optionCache,
 334                         sPriv->myNum, "savage");
 335
 336    imesa->float_depth = driQueryOptionb(&imesa->optionCache, "float_depth") &&
 337        savageScreen->chipset >= S3_SAVAGE4;
 338    imesa->no_rast = driQueryOptionb(&imesa->optionCache, "no_rast");
 339
 340 #if 0
 341    ctx->Const.MinLineWidth = 1.0;
 342    ctx->Const.MinLineWidthAA = 1.0;
 343    ctx->Const.MaxLineWidth = 3.0;
 344    ctx->Const.MaxLineWidthAA = 3.0;
 345    ctx->Const.LineWidthGranularity = 1.0;
 346 #endif
 347
 348    /* Dri stuff
 349     */
 350    imesa->hHWContext = driContextPriv->hHWContext;
 351    imesa->driFd = sPriv->fd;
 352    imesa->driHwLock = &sPriv->pSAREA->lock;
 353
 354    imesa->savageScreen = savageScreen;
 355    imesa->driScreen = sPriv;
 356    imesa->sarea = saPriv;
 357    imesa->glBuffer = NULL;
 358
 359    /* DMA buffer */
 360
 361    for(i=0;i<5;i++)
 362    {
 363        imesa->apertureBase[i] = (GLubyte *)savageScreen->aperture.map +
 364            0x01000000 * i;
 365    }
 366
 367    imesa->aperturePitch = savageScreen->aperturePitch;
 368
 369    /* change texHeap initialize to support two kind of texture heap*/
 370    /* here is some parts of initialization, others in InitDriver() */
 371
 372    (void) memset( imesa->textureHeaps, 0, sizeof( imesa->textureHeaps ) );
 373    make_empty_list( & imesa->swapped );
 374
 375    textureSize[SAVAGE_CARD_HEAP] = savageScreen->textureSize[SAVAGE_CARD_HEAP];
 376    textureSize[SAVAGE_AGP_HEAP] = savageScreen->textureSize[SAVAGE_AGP_HEAP];
 377    imesa->lastTexHeap = savageScreen->texVirtual[SAVAGE_AGP_HEAP] ? 2 : 1;
 378    switch(driQueryOptioni (&imesa->optionCache, "texture_heaps")) {
 379    case DRI_CONF_TEXTURE_HEAPS_CARD: /* only use card memory, if available */
 380        if (textureSize[SAVAGE_CARD_HEAP])
 381            imesa->lastTexHeap = 1;
 382        break;
 383    case DRI_CONF_TEXTURE_HEAPS_GART: /* only use gart memory, if available */
 384        if (imesa->lastTexHeap == 2 && textureSize[SAVAGE_AGP_HEAP])
 385            textureSize[SAVAGE_CARD_HEAP] = 0;
 386        break;
 387    /*default: Nothing to do, use all available memory. */
 388    }
 389
 390    for (i = 0; i < imesa->lastTexHeap; i++) {
 391        imesa->textureHeaps[i] = driCreateTextureHeap(
 392            i, imesa,
 393            textureSize[i],
 394            11,                                  /* 2^11 = 2k alignment */
 395            SAVAGE_NR_TEX_REGIONS,
 396            (drmTextureRegionPtr)imesa->sarea->texList[i],
 397             &imesa->sarea->texAge[i],
 398             &imesa->swapped,
 399             sizeof( savageTexObj ),
 400             (destroy_texture_object_t *) savageDestroyTexObj );
 401        /* If textureSize[i] == 0 textureHeaps[i] is NULL. This can happen
 402         * if there is not enough card memory for a card texture heap. */
 403        if (imesa->textureHeaps[i])
 404            driSetTextureSwapCounterLocation( imesa->textureHeaps[i],
 405                                              & imesa->c_textureSwaps );
 406    }
 407    imesa->texture_depth = driQueryOptioni (&imesa->optionCache,
 408                                            "texture_depth");
 409    if (imesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 410        imesa->texture_depth = ( savageScreen->cpp == 4 ) ?
 411            DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 412
 413    if (savageScreen->chipset >= S3_SAVAGE4)
 414        ctx->Const.MaxTextureUnits = 2;
 415    else
 416        ctx->Const.MaxTextureUnits = 1;
 417    if (driQueryOptioni(&imesa->optionCache, "texture_units") <
 418        ctx->Const.MaxTextureUnits)
 419        ctx->Const.MaxTextureUnits =
 420            driQueryOptioni(&imesa->optionCache, "texture_units");
 421    ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 422    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 423
 424    driCalculateMaxTextureLevels( imesa->textureHeaps,
 425                                  imesa->lastTexHeap,
 426                                  & ctx->Const,
 427                                  4,
 428                                  11, /* max 2D texture size is 2048x2048 */
 429                                  0,  /* 3D textures unsupported. */
 430                                  0,  /* cube textures unsupported. */
 431                                  0,  /* texture rectangles unsupported. */
 432                                  12,
 433                                  GL_FALSE,
 434                                  0 );
 435    if (ctx->Const.MaxTextureLevels <= 6) { /*spec requires at least 64x64*/
 436        __driUtilMessage("Not enough texture memory. "
 437                         "Falling back to indirect rendering.");
 438        Xfree(imesa);
 439        return GL_FALSE;
 440    }
 441
 442    imesa->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
 443    imesa->depth_scale = (imesa->savageScreen->zpp == 2) ?
 444        (1.0F/0xffff):(1.0F/0xffffff);
 445
 446    imesa->bufferSize = savageScreen->bufferSize;
 447    imesa->dmaVtxBuf.total = 0;
 448    imesa->dmaVtxBuf.used = 0;
 449    imesa->dmaVtxBuf.flushed = 0;
 450
 451    imesa->clientVtxBuf.total = imesa->bufferSize / 4;
 452    imesa->clientVtxBuf.used = 0;
 453    imesa->clientVtxBuf.flushed = 0;
 454    imesa->clientVtxBuf.buf = (uint32_t *)malloc(imesa->bufferSize);
 455
 456    imesa->vtxBuf = &imesa->clientVtxBuf;
 457
 458    imesa->firstElt = -1;
 459
 460    /* Uninitialized vertex format. Force setting the vertex state in
 461     * savageRenderStart.
 462     */
 463    imesa->vertex_size = 0;
 464
 465    /* Utah stuff
 466     */
 467    imesa->new_state = ~0;
 468    imesa->new_gl_state = ~0;
 469    imesa->RenderIndex = ~0;
 470    imesa->dirty = ~0;
 471    imesa->lostContext = GL_TRUE;
 472    imesa->CurrentTexObj[0] = 0;
 473    imesa->CurrentTexObj[1] = 0;
 474
 475    /* Initialize the software rasterizer and helper modules.
 476     */
 477    _swrast_CreateContext( ctx );
 478    _vbo_CreateContext( ctx );
 479    _tnl_CreateContext( ctx );
 480
 481    _swsetup_CreateContext( ctx );
 482
 483    /* Install the customized pipeline:
 484     */
 485    _tnl_destroy_pipeline( ctx );
 486    _tnl_install_pipeline( ctx, savage_pipeline );
 487
 488    imesa->enable_fastpath = driQueryOptionb(&imesa->optionCache,
 489                                             "enable_fastpath");
 490    /* DRM versions before 2.1.3 would only render triangle lists. ELTS
 491     * support was added in 2.2.0. */
 492    if (imesa->enable_fastpath && sPriv->drm_version.minor < 2) {
 493       fprintf (stderr,
 494                "*** Disabling fast path because your DRM version is buggy "
 495                "or doesn't\n*** support ELTS. You need at least Savage DRM "
 496                "version 2.2.\n");
 497       imesa->enable_fastpath = GL_FALSE;
 498    }
 499
 500    if (!savageScreen->bufs || savageScreen->chipset == S3_SUPERSAVAGE)
 501        imesa->enable_vdma = GL_FALSE;
 502    else
 503        imesa->enable_vdma = driQueryOptionb(&imesa->optionCache, "enable_vdma");
 504
 505    imesa->sync_frames = driQueryOptionb(&imesa->optionCache, "sync_frames");
 506
 507    /* Configure swrast to match hardware characteristics:
 508     */
 509    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 510    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 511    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 512    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 513
 514    ctx->DriverCtx = (void *) imesa;
 515    imesa->glCtx = ctx;
 516
 517 #ifndef SAVAGE_DEBUG
 518    SAVAGE_DEBUG = driParseDebugString( getenv( "SAVAGE_DEBUG" ),
 519                                        debug_control );
 520 #endif
 521
 522    driInitExtensions( ctx, card_extensions, GL_TRUE );
 523    if (savageScreen->chipset >= S3_SAVAGE4)
 524        driInitExtensions( ctx, s4_extensions, GL_FALSE );
 525    if (ctx->Mesa_DXTn ||
 526        driQueryOptionb (&imesa->optionCache, "force_s3tc_enable")) {
 527        _mesa_enable_extension( ctx, "GL_S3_s3tc" );
 528        if (savageScreen->chipset >= S3_SAVAGE4)
 529            /* This extension needs DXT3 and DTX5 support in hardware.
 530             * Not available on Savage3D/MX/IX. */
 531            _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
 532    }
 533
 534    savageDDInitStateFuncs( ctx );
 535    savageDDInitSpanFuncs( ctx );
 536    savageDDInitDriverFuncs( ctx );
 537    savageDDInitIoctlFuncs( ctx );
 538    savageInitTriFuncs( ctx );
 539
 540    savageDDInitState( imesa );
 541
 542    driContextPriv->driverPrivate = (void *) imesa;
 543
 544    return GL_TRUE;
 545 }
 546
 547 static void
 548 savageDestroyContext(__DRIcontextPrivate *driContextPriv)
 549 {
 550    savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
 551    GLuint i;
 552
 553    assert (imesa); /* should never be NULL */
 554    if (imesa) {
 555       savageFlushVertices(imesa);
 556       savageReleaseIndexedVerts(imesa);
 557       savageFlushCmdBuf(imesa, GL_TRUE); /* release DMA buffer */
 558       WAIT_IDLE_EMPTY(imesa);
 559
 560       for (i = 0; i < imesa->lastTexHeap; i++)
 561          driDestroyTextureHeap(imesa->textureHeaps[i]);
 562
 563       free(imesa->cmdBuf.base);
 564       free(imesa->clientVtxBuf.buf);
 565
 566       _swsetup_DestroyContext(imesa->glCtx );
 567       _tnl_DestroyContext( imesa->glCtx );
 568       _vbo_DestroyContext( imesa->glCtx );
 569       _swrast_DestroyContext( imesa->glCtx );
 570
 571       /* free the Mesa context */
 572       imesa->glCtx->DriverCtx = NULL;
 573       _mesa_destroy_context(imesa->glCtx);
 574
 575       /* no longer use vertex_dma_buf*/
 576       Xfree(imesa);
 577    }
 578 }
 579
 580
 581 static GLboolean
 582 savageCreateBuffer( __DRIscreenPrivate *driScrnPriv,
 583                     __DRIdrawablePrivate *driDrawPriv,
 584                     const __GLcontextModes *mesaVis,
 585                     GLboolean isPixmap)
 586 {
 587    savageScreenPrivate *screen = (savageScreenPrivate *) driScrnPriv->private;
 588
 589    if (isPixmap) {
 590       return GL_FALSE; /* not implemented */
 591    }
 592    else {
 593       GLboolean swStencil = mesaVis->stencilBits > 0 && mesaVis->depthBits != 24;
 594       struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
 595       /*
 596        * XXX: this value needs to be set according to the config file
 597        * setting.  But we don't get that until we create a rendering
 598        * context!!!!
 599        */
 600       GLboolean float_depth = GL_FALSE;
 601
 602       {
 603          driRenderbuffer *frontRb
 604             = driNewRenderbuffer(GL_RGBA,
 605                                  (GLubyte *) screen->aperture.map
 606                                  + 0x01000000 * TARGET_FRONT,
 607                                  screen->cpp,
 608                                  screen->frontOffset, screen->aperturePitch,
 609                                  driDrawPriv);
 610          savageSetSpanFunctions(frontRb, mesaVis, float_depth);
 611          assert(frontRb->Base.Data);
 612          _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
 613       }
 614
 615       if (mesaVis->doubleBufferMode) {
 616          driRenderbuffer *backRb
 617             = driNewRenderbuffer(GL_RGBA,
 618                                  (GLubyte *) screen->aperture.map
 619                                  + 0x01000000 * TARGET_BACK,
 620                                  screen->cpp,
 621                                  screen->backOffset, screen->aperturePitch,
 622                                  driDrawPriv);
 623          savageSetSpanFunctions(backRb, mesaVis, float_depth);
 624          assert(backRb->Base.Data);
 625          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
 626       }
 627
 628       if (mesaVis->depthBits == 16) {
 629          driRenderbuffer *depthRb
 630             = driNewRenderbuffer(GL_DEPTH_COMPONENT16,
 631                                  (GLubyte *) screen->aperture.map
 632                                  + 0x01000000 * TARGET_DEPTH,
 633                                  screen->zpp,
 634                                  screen->depthOffset, screen->aperturePitch,
 635                                  driDrawPriv);
 636          savageSetSpanFunctions(depthRb, mesaVis, float_depth);
 637          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 638       }
 639       else if (mesaVis->depthBits == 24) {
 640          driRenderbuffer *depthRb
 641             = driNewRenderbuffer(GL_DEPTH_COMPONENT24,
 642                                  (GLubyte *) screen->aperture.map
 643                                  + 0x01000000 * TARGET_DEPTH,
 644                                  screen->zpp,
 645                                  screen->depthOffset, screen->aperturePitch,
 646                                  driDrawPriv);
 647          savageSetSpanFunctions(depthRb, mesaVis, float_depth);
 648          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 649       }
 650
 651       if (mesaVis->stencilBits > 0 && !swStencil) {
 652          driRenderbuffer *stencilRb
 653             = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT,
 654                                  (GLubyte *) screen->aperture.map
 655                                  + 0x01000000 * TARGET_DEPTH,
 656                                  screen->zpp,
 657                                  screen->depthOffset, screen->aperturePitch,
 658                                  driDrawPriv);
 659          savageSetSpanFunctions(stencilRb, mesaVis, float_depth);
 660          _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base);
 661       }
 662
 663       _mesa_add_soft_renderbuffers(fb,
 664                                    GL_FALSE, /* color */
 665                                    GL_FALSE, /* depth */
 666                                    swStencil,
 667                                    mesaVis->accumRedBits > 0,
 668                                    GL_FALSE, /* alpha */
 669                                    GL_FALSE /* aux */);
 670       driDrawPriv->driverPrivate = (void *) fb;
 671
 672       return (driDrawPriv->driverPrivate != NULL);
 673    }
 674 }
 675
 676 static void
 677 savageDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 678 {
 679    _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
 680 }
 681
 682 #if 0
 683 void XMesaSwapBuffers(__DRIdrawablePrivate *driDrawPriv)
 684 {
 685    /* XXX should do swap according to the buffer, not the context! */
 686    savageContextPtr imesa = savageCtx;
 687
 688    FLUSH_VB( imesa->glCtx, "swap buffers" );
 689    savageSwapBuffers(imesa);
 690 }
 691 #endif
 692
 693
 694 void savageXMesaSetClipRects(savageContextPtr imesa)
 695 {
 696    __DRIdrawablePrivate *dPriv = imesa->driDrawable;
 697
 698    if ((dPriv->numBackClipRects == 0)
 699        || (imesa->glCtx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT)) {
 700       imesa->numClipRects = dPriv->numClipRects;
 701       imesa->pClipRects = dPriv->pClipRects;
 702       imesa->drawX = dPriv->x;
 703       imesa->drawY = dPriv->y;
 704    } else {
 705       imesa->numClipRects = dPriv->numBackClipRects;
 706       imesa->pClipRects = dPriv->pBackClipRects;
 707       imesa->drawX = dPriv->backX;
 708       imesa->drawY = dPriv->backY;
 709    }
 710
 711    savageCalcViewport( imesa->glCtx );
 712 }
 713
 714
 715 static void savageXMesaWindowMoved( savageContextPtr imesa )
 716 {
 717    __DRIdrawablePrivate *const drawable = imesa->driDrawable;
 718    __DRIdrawablePrivate *const readable = imesa->driReadable;
 719
 720    if (0)
 721       fprintf(stderr, "savageXMesaWindowMoved\n\n");
 722
 723    savageXMesaSetClipRects(imesa);
 724
 725    driUpdateFramebufferSize(imesa->glCtx, drawable);
 726    if (drawable != readable) {
 727       driUpdateFramebufferSize(imesa->glCtx, readable);
 728    }
 729 }
 730
 731
 732 static GLboolean
 733 savageUnbindContext(__DRIcontextPrivate *driContextPriv)
 734 {
 735    savageContextPtr savage = (savageContextPtr) driContextPriv->driverPrivate;
 736    if (savage)
 737       savage->dirty = ~0;
 738
 739    return GL_TRUE;
 740 }
 741
 742 #if 0
 743 static GLboolean
 744 savageOpenFullScreen(__DRIcontextPrivate *driContextPriv)
 745 {
 746
 747
 748
 749     if (driContextPriv) {
 750       savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
 751       imesa->IsFullScreen = GL_TRUE;
 752       imesa->backup_frontOffset = imesa->savageScreen->frontOffset;
 753       imesa->backup_backOffset = imesa->savageScreen->backOffset;
 754       imesa->backup_frontBitmapDesc = imesa->savageScreen->frontBitmapDesc;
 755       imesa->savageScreen->frontBitmapDesc = imesa->savageScreen->backBitmapDesc;
 756       imesa->toggle = TARGET_BACK;
 757    }
 758
 759     return GL_TRUE;
 760 }
 761
 762 static GLboolean
 763 savageCloseFullScreen(__DRIcontextPrivate *driContextPriv)
 764 {
 765
 766     if (driContextPriv) {
 767       savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
 768       WAIT_IDLE_EMPTY(imesa);
 769       imesa->IsFullScreen = GL_FALSE;
 770       imesa->savageScreen->frontOffset = imesa->backup_frontOffset;
 771       imesa->savageScreen->backOffset = imesa->backup_backOffset;
 772       imesa->savageScreen->frontBitmapDesc = imesa->backup_frontBitmapDesc;
 773    }
 774     return GL_TRUE;
 775 }
 776 #endif
 777
 778 static GLboolean
 779 savageMakeCurrent(__DRIcontextPrivate *driContextPriv,
 780                   __DRIdrawablePrivate *driDrawPriv,
 781                   __DRIdrawablePrivate *driReadPriv)
 782 {
 783    if (driContextPriv) {
 784       savageContextPtr imesa
 785          = (savageContextPtr) driContextPriv->driverPrivate;
 786       struct gl_framebuffer *drawBuffer
 787          = (GLframebuffer *) driDrawPriv->driverPrivate;
 788       struct gl_framebuffer *readBuffer
 789          = (GLframebuffer *) driReadPriv->driverPrivate;
 790       driRenderbuffer *frontRb = (driRenderbuffer *)
 791          drawBuffer->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
 792       driRenderbuffer *backRb = (driRenderbuffer *)
 793          drawBuffer->Attachment[BUFFER_BACK_LEFT].Renderbuffer;
 794
 795       assert(frontRb->Base.Data);
 796       if (imesa->glCtx->Visual.doubleBufferMode) {
 797          assert(backRb->Base.Data);
 798       }
 799
 800       imesa->driReadable = driReadPriv;
 801       imesa->driDrawable = driDrawPriv;
 802       imesa->dirty = ~0;
 803
 804       _mesa_make_current(imesa->glCtx, drawBuffer, readBuffer);
 805
 806       savageXMesaWindowMoved( imesa );
 807    }
 808    else
 809    {
 810       _mesa_make_current(NULL, NULL, NULL);
 811    }
 812    return GL_TRUE;
 813 }
 814
 815
 816 void savageGetLock( savageContextPtr imesa, GLuint flags )
 817 {
 818    __DRIdrawablePrivate *const drawable = imesa->driDrawable;
 819    __DRIdrawablePrivate *const readable = imesa->driReadable;
 820    __DRIscreenPrivate *sPriv = imesa->driScreen;
 821    drm_savage_sarea_t *sarea = imesa->sarea;
 822    int me = imesa->hHWContext;
 823    int stamp = drawable->lastStamp;
 824    int heap;
 825    unsigned int timestamp = 0;
 826
 827
 828
 829    /* We know there has been contention.
 830     */
 831    drmGetLock(imesa->driFd, imesa->hHWContext, flags);
 832
 833
 834    /* Note contention for throttling hint
 835     */
 836    imesa->any_contend = 1;
 837
 838    /* If the window moved, may need to set a new cliprect now.
 839     *
 840     * NOTE: This releases and regains the hw lock, so all state
 841     * checking must be done *after* this call:
 842     */
 843    DRI_VALIDATE_DRAWABLE_INFO(sPriv, drawable);
 844    if (drawable != readable) {
 845       DRI_VALIDATE_DRAWABLE_INFO(sPriv, readable);
 846    }
 847
 848
 849    /* If we lost context, need to dump all registers to hardware.
 850     * Note that we don't care about 2d contexts, even if they perform
 851     * accelerated commands, so the DRI locking in the X server is even
 852     * more broken than usual.
 853     */
 854    if (sarea->ctxOwner != me) {
 855       imesa->dirty |= (SAVAGE_UPLOAD_LOCAL |
 856                        SAVAGE_UPLOAD_GLOBAL |
 857                        SAVAGE_UPLOAD_FOGTBL |
 858                        SAVAGE_UPLOAD_TEX0 |
 859                        SAVAGE_UPLOAD_TEX1 |
 860                        SAVAGE_UPLOAD_TEXGLOBAL);
 861       imesa->lostContext = GL_TRUE;
 862       sarea->ctxOwner = me;
 863    }
 864
 865    for (heap = 0; heap < imesa->lastTexHeap; ++heap) {
 866       /* If a heap was changed, update its timestamp. Do this before
 867        * DRI_AGE_TEXTURES updates the local_age. */
 868       if (imesa->textureHeaps[heap] &&
 869           imesa->textureHeaps[heap]->global_age[0] >
 870           imesa->textureHeaps[heap]->local_age) {
 871          if (timestamp == 0)
 872             timestamp = savageEmitEventLocked(imesa, 0);
 873          imesa->textureHeaps[heap]->timestamp = timestamp;
 874       }
 875       DRI_AGE_TEXTURES( imesa->textureHeaps[heap] );
 876    }
 877
 878    if (drawable->lastStamp != stamp) {
 879       driUpdateFramebufferSize(imesa->glCtx, drawable);
 880       savageXMesaWindowMoved( imesa );
 881    }
 882 }
 883
 884 static const  __DRIconfig **
 885 savageFillInModes( __DRIscreenPrivate *psp,
 886                    unsigned pixel_bits, unsigned depth_bits,
 887                    unsigned stencil_bits, GLboolean have_back_buffer )
 888 {
 889     __DRIconfig **configs;
 890     __GLcontextModes * m;
 891     unsigned depth_buffer_factor;
 892     unsigned back_buffer_factor;
 893     GLenum fb_format;
 894     GLenum fb_type;
 895     int i;
 896
 897     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 898      * enough to add support.  Basically, if a context is created with an
 899      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 900      * will never be used.
 901      *
 902      * FK: What about drivers that don't use page flipping? Could they
 903      * just expose GLX_SWAP_COPY_OML?
 904      */
 905     static const GLenum back_buffer_modes[] = {
 906         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 907     };
 908
 909     uint8_t depth_bits_array[2];
 910     uint8_t stencil_bits_array[2];
 911
 912
 913     depth_bits_array[0] = depth_bits;
 914     depth_bits_array[1] = depth_bits;
 915
 916     /* Just like with the accumulation buffer, always provide some modes
 917      * with a stencil buffer.  It will be a sw fallback, but some apps won't
 918      * care about that.
 919      */
 920     stencil_bits_array[0] = 0;
 921     stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
 922
 923     depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
 924     back_buffer_factor  = (have_back_buffer) ? 2 : 1;
 925
 926     if ( pixel_bits == 16 ) {
 927         fb_format = GL_RGB;
 928         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 929     }
 930     else {
 931         fb_format = GL_BGR;
 932         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 933     }
 934
 935     configs = driCreateConfigs(fb_format, fb_type,
 936                                depth_bits_array, stencil_bits_array,
 937                                depth_buffer_factor,
 938                                back_buffer_modes, back_buffer_factor);
 939     if (configs == NULL) {
 940         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 941                  __func__, __LINE__ );
 942         return NULL;
 943     }
 944
 945     /* Mark the visual as slow if there are "fake" stencil bits.
 946      */
 947     for (i = 0; configs[i]; i++) {
 948         m = &configs[i]->modes;
 949         if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
 950             m->visualRating = GLX_SLOW_CONFIG;
 951         }
 952     }
 953
 954     return (const __DRIconfig **) configs;
 955 }
 956
 957
 958 /**
 959  * This is the driver specific part of the createNewScreen entry point.
 960  *
 961  * \todo maybe fold this into intelInitDriver
 962  *
 963  * \return the __GLcontextModes supported by this driver
 964  */
 965 static const __DRIconfig **
 966 savageInitScreen(__DRIscreenPrivate *psp)
 967 {
 968    static const __DRIversion ddx_expected = { 2, 0, 0 };
 969    static const __DRIversion dri_expected = { 4, 0, 0 };
 970    static const __DRIversion drm_expected = { 2, 1, 0 };
 971    SAVAGEDRIPtr dri_priv = (SAVAGEDRIPtr)psp->pDevPriv;
 972
 973    if ( ! driCheckDriDdxDrmVersions2( "Savage",
 974                                       &psp->dri_version, & dri_expected,
 975                                       &psp->ddx_version, & ddx_expected,
 976                                       &psp->drm_version, & drm_expected ) )
 977       return NULL;
 978
 979    /* Calling driInitExtensions here, with a NULL context pointer,
 980     * does not actually enable the extensions.  It just makes sure
 981     * that all the dispatch offsets for all the extensions that
 982     * *might* be enables are known.  This is needed because the
 983     * dispatch offsets need to be known when _mesa_context_create is
 984     * called, but we can't enable the extensions until we have a
 985     * context pointer.
 986     *
 987     * Hello chicken.  Hello egg.  How are you two today?
 988     */
 989    driInitExtensions( NULL, card_extensions, GL_FALSE );
 990
 991    if (!savageInitDriver(psp))
 992        return NULL;
 993
 994    return savageFillInModes( psp,
 995                              dri_priv->cpp*8,
 996                              (dri_priv->cpp == 2) ? 16 : 24,
 997                              (dri_priv->cpp == 2) ? 0  : 8,
 998                              (dri_priv->backOffset != dri_priv->depthOffset) );
 999 }
1000
1001 const struct __DriverAPIRec driDriverAPI = {
1002    savageInitScreen,
1003    savageDestroyScreen,
1004    savageCreateContext,
1005    savageDestroyContext,
1006    savageCreateBuffer,
1007    savageDestroyBuffer,
1008    savageSwapBuffers,
1009    savageMakeCurrent,
1010    savageUnbindContext
1011 };