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 "savagecontext.h"
  30 #include "context.h"
  31 #include "matrix.h"
  32
  33 #include "simple_list.h"
  34
  35 #include "utils.h"
  36
  37 #include "swrast/swrast.h"
  38 #include "swrast_setup/swrast_setup.h"
  39 #include "tnl/tnl.h"
  40 #include "array_cache/acache.h"
  41
  42 #include "tnl/t_pipeline.h"
  43
  44 #include "drivers/common/driverfuncs.h"
  45
  46 #include "savagedd.h"
  47 #include "savagestate.h"
  48 #include "savagetex.h"
  49 #include "savagespan.h"
  50 #include "savagetris.h"
  51 #include "savageioctl.h"
  52 #include "savage_bci.h"
  53
  54 #include "savage_dri.h"
  55
  56 #include "texmem.h"
  57
  58 #include "xmlpool.h"
  59
  60 /* Driver-specific options
  61  */
  62 #define SAVAGE_ENABLE_VDMA(def) \
  63 DRI_CONF_OPT_BEGIN(enable_vdma,bool,def) \
  64         DRI_CONF_DESC(en,"Use DMA for vertex transfers") \
  65         DRI_CONF_DESC(de,"Benutze DMA für Vertextransfers") \
  66 DRI_CONF_OPT_END
  67 #define SAVAGE_ENABLE_FASTPATH(def) \
  68 DRI_CONF_OPT_BEGIN(enable_fastpath,bool,def) \
  69         DRI_CONF_DESC(en,"Use fast path for unclipped primitives") \
  70         DRI_CONF_DESC(de,"Schneller Codepfad für ungeschnittene Polygone") \
  71 DRI_CONF_OPT_END
  72
  73 /* Configuration
  74  */
  75 PUBLIC const char __driConfigOptions[] =
  76 DRI_CONF_BEGIN
  77     DRI_CONF_SECTION_QUALITY
  78         DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
  79         DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
  80         DRI_CONF_FLOAT_DEPTH(false)
  81     DRI_CONF_SECTION_END
  82     DRI_CONF_SECTION_PERFORMANCE
  83         DRI_CONF_MAX_TEXTURE_UNITS(2,1,2)
  84         SAVAGE_ENABLE_VDMA(true)
  85         SAVAGE_ENABLE_FASTPATH(true)
  86         DRI_CONF_TEXTURE_HEAPS(DRI_CONF_TEXTURE_HEAPS_ALL)
  87     DRI_CONF_SECTION_END
  88     DRI_CONF_SECTION_DEBUG
  89         DRI_CONF_NO_RAST(false)
  90     DRI_CONF_SECTION_END
  91 DRI_CONF_END;
  92 static const GLuint __driNConfigOptions = 8;
  93
  94 #ifdef USE_NEW_INTERFACE
  95 static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
  96 #endif /* USE_NEW_INTERFACE */
  97
  98 static const struct dri_debug_control debug_control[] =
  99 {
 100     { "fall",  DEBUG_FALLBACKS },
 101     { "api",   DEBUG_VERBOSE_API },
 102     { "tex",   DEBUG_VERBOSE_TEX },
 103     { "verb",  DEBUG_VERBOSE_MSG },
 104     { "dma",   DEBUG_DMA },
 105     { "state", DEBUG_STATE },
 106     { NULL,    0 }
 107 };
 108 #ifndef SAVAGE_DEBUG
 109 int SAVAGE_DEBUG = 0;
 110 #endif
 111
 112
 113 /*For time caculating test*/
 114 #if defined(DEBUG_TIME) && DEBUG_TIME
 115 struct timeval tv_s,tv_f;
 116 unsigned long time_sum=0;
 117 struct timeval tv_s1,tv_f1;
 118 #endif
 119
 120 static const char *const card_extensions[] =
 121 {
 122     "GL_ARB_multitexture",
 123     "GL_EXT_texture_lod_bias",
 124     "GL_EXT_texture_env_add",
 125     NULL
 126 };
 127
 128 extern struct tnl_pipeline_stage _savage_texnorm_stage;
 129 extern struct tnl_pipeline_stage _savage_render_stage;
 130
 131 static const struct tnl_pipeline_stage *savage_pipeline[] = {
 132
 133    &_tnl_vertex_transform_stage,
 134    &_tnl_normal_transform_stage,
 135    &_tnl_lighting_stage,
 136    &_tnl_fog_coordinate_stage,
 137    &_tnl_texgen_stage,
 138    &_tnl_texture_transform_stage,
 139    &_savage_texnorm_stage,
 140    &_savage_render_stage,
 141    &_tnl_render_stage,
 142    0,
 143 };
 144
 145
 146 /* this is first function called in dirver*/
 147
 148 static GLboolean
 149 savageInitDriver(__DRIscreenPrivate *sPriv)
 150 {
 151   savageScreenPrivate *savageScreen;
 152   SAVAGEDRIPtr         gDRIPriv = (SAVAGEDRIPtr)sPriv->pDevPriv;
 153
 154    /* Allocate the private area */
 155    savageScreen = (savageScreenPrivate *)Xmalloc(sizeof(savageScreenPrivate));
 156    if (!savageScreen)
 157       return GL_FALSE;
 158
 159    savageScreen->driScrnPriv = sPriv;
 160    sPriv->private = (void *)savageScreen;
 161
 162    savageScreen->chipset=gDRIPriv->chipset;
 163    savageScreen->width=gDRIPriv->width;
 164    savageScreen->height=gDRIPriv->height;
 165    savageScreen->mem=gDRIPriv->mem;
 166    savageScreen->cpp=gDRIPriv->cpp;
 167    savageScreen->zpp=gDRIPriv->zpp;
 168
 169    savageScreen->agpMode=gDRIPriv->agpMode;
 170
 171    savageScreen->bufferSize=gDRIPriv->bufferSize;
 172
 173    if (gDRIPriv->cpp == 4)
 174        savageScreen->frontFormat = DV_PF_8888;
 175    else
 176        savageScreen->frontFormat = DV_PF_565;
 177    savageScreen->frontOffset=gDRIPriv->frontOffset;
 178    savageScreen->backOffset = gDRIPriv->backOffset;
 179    savageScreen->depthOffset=gDRIPriv->depthOffset;
 180
 181    savageScreen->textureOffset[SAVAGE_CARD_HEAP] =
 182                                    gDRIPriv->textureOffset;
 183    savageScreen->textureSize[SAVAGE_CARD_HEAP] =
 184                                    gDRIPriv->textureSize;
 185    savageScreen->logTextureGranularity[SAVAGE_CARD_HEAP] =
 186                                    gDRIPriv->logTextureGranularity;
 187
 188    savageScreen->textureOffset[SAVAGE_AGP_HEAP] =
 189                                    gDRIPriv->agpTextureHandle;
 190    savageScreen->textureSize[SAVAGE_AGP_HEAP] =
 191                                    gDRIPriv->agpTextureSize;
 192    savageScreen->logTextureGranularity[SAVAGE_AGP_HEAP] =
 193                                    gDRIPriv->logAgpTextureGranularity;
 194
 195    savageScreen->agpTextures.handle = gDRIPriv->agpTextureHandle;
 196    savageScreen->agpTextures.size   = gDRIPriv->agpTextureSize;
 197    if (gDRIPriv->agpTextureSize) {
 198        if (drmMap(sPriv->fd,
 199                   savageScreen->agpTextures.handle,
 200                   savageScreen->agpTextures.size,
 201                   (drmAddress *)&(savageScreen->agpTextures.map)) != 0) {
 202            Xfree(savageScreen);
 203            sPriv->private = NULL;
 204            return GL_FALSE;
 205        }
 206    } else
 207        savageScreen->agpTextures.map = NULL;
 208
 209    savageScreen->texVirtual[SAVAGE_CARD_HEAP] =
 210              (drmAddress)(((unsigned int)sPriv->pFB)+gDRIPriv->textureOffset);
 211    savageScreen->texVirtual[SAVAGE_AGP_HEAP] =
 212                         (drmAddress)(savageScreen->agpTextures.map);
 213
 214    savageScreen->aperture.handle = gDRIPriv->apertureHandle;
 215    savageScreen->aperture.size   = gDRIPriv->apertureSize;
 216    savageScreen->aperturePitch   = gDRIPriv->aperturePitch;
 217    if (drmMap(sPriv->fd,
 218               savageScreen->aperture.handle,
 219               savageScreen->aperture.size,
 220               (drmAddress *)&savageScreen->aperture.map) != 0)
 221    {
 222       Xfree(savageScreen);
 223       sPriv->private = NULL;
 224       return GL_FALSE;
 225    }
 226
 227    savageScreen->bufs = drmMapBufs(sPriv->fd);
 228
 229    savageScreen->sarea_priv_offset = gDRIPriv->sarea_priv_offset;
 230
 231    /* parse information in __driConfigOptions */
 232    driParseOptionInfo (&savageScreen->optionCache,
 233                        __driConfigOptions, __driNConfigOptions);
 234
 235 #if 0
 236    savageDDFastPathInit();
 237    savageDDTrifuncInit();
 238    savageDDSetupInit();
 239 #endif
 240    return GL_TRUE;
 241 }
 242
 243 /* Accessed by dlsym from dri_mesa_init.c
 244  */
 245 static void
 246 savageDestroyScreen(__DRIscreenPrivate *sPriv)
 247 {
 248    savageScreenPrivate *savageScreen = (savageScreenPrivate *)sPriv->private;
 249
 250    drmUnmapBufs(savageScreen->bufs);
 251
 252    /* free all option information */
 253    driDestroyOptionInfo (&savageScreen->optionCache);
 254
 255    Xfree(savageScreen);
 256    sPriv->private = NULL;
 257 }
 258
 259 #if 0
 260 GLvisual *XMesaCreateVisual(Display *dpy,
 261                             __DRIscreenPrivate *driScrnPriv,
 262                             const XVisualInfo *visinfo,
 263                             const __GLXvisualConfig *config)
 264 {
 265    /* Drivers may change the args to _mesa_create_visual() in order to
 266     * setup special visuals.
 267     */
 268    return _mesa_create_visual( config->rgba,
 269                                config->doubleBuffer,
 270                                config->stereo,
 271                                _mesa_bitcount(visinfo->red_mask),
 272                                _mesa_bitcount(visinfo->green_mask),
 273                                _mesa_bitcount(visinfo->blue_mask),
 274                                config->alphaSize,
 275                                0, /* index bits */
 276                                config->depthSize,
 277                                config->stencilSize,
 278                                config->accumRedSize,
 279                                config->accumGreenSize,
 280                                config->accumBlueSize,
 281                                config->accumAlphaSize,
 282                                0 /* num samples */ );
 283 }
 284 #endif
 285
 286
 287 static GLboolean
 288 savageCreateContext( const __GLcontextModes *mesaVis,
 289                      __DRIcontextPrivate *driContextPriv,
 290                      void *sharedContextPrivate )
 291 {
 292    GLcontext *ctx, *shareCtx;
 293    savageContextPtr imesa;
 294    __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 295    struct dd_function_table functions;
 296    savageScreenPrivate *savageScreen = (savageScreenPrivate *)sPriv->private;
 297    drm_savage_sarea_t *saPriv=(drm_savage_sarea_t *)(((char*)sPriv->pSAREA)+
 298                                                  savageScreen->sarea_priv_offset);
 299    int textureSize[SAVAGE_NR_TEX_HEAPS];
 300    int i;
 301    imesa = (savageContextPtr)Xcalloc(sizeof(savageContext), 1);
 302    if (!imesa) {
 303       return GL_FALSE;
 304    }
 305
 306    /* Init default driver functions then plug in savage-specific texture
 307     * functions that are needed as early as during context creation. */
 308    _mesa_init_driver_functions( &functions );
 309    savageDDInitTextureFuncs( &functions );
 310
 311    /* Allocate the Mesa context */
 312    if (sharedContextPrivate)
 313       shareCtx = ((savageContextPtr) sharedContextPrivate)->glCtx;
 314    else
 315       shareCtx = NULL;
 316    ctx = _mesa_create_context(mesaVis, shareCtx, &functions, imesa);
 317    if (!ctx) {
 318       Xfree(imesa);
 319       return GL_FALSE;
 320    }
 321    driContextPriv->driverPrivate = imesa;
 322
 323    imesa->cmdBuf.size = SAVAGE_CMDBUF_SIZE;
 324    imesa->cmdBuf.base = imesa->cmdBuf.write =
 325        malloc(SAVAGE_CMDBUF_SIZE * sizeof(drm_savage_cmd_header_t));
 326    if (!imesa->cmdBuf.base)
 327        return GL_FALSE;
 328
 329    /* Parse configuration files */
 330    driParseConfigFiles (&imesa->optionCache, &savageScreen->optionCache,
 331                         sPriv->myNum, "savage");
 332
 333    imesa->float_depth = driQueryOptionb(&imesa->optionCache, "float_depth") &&
 334        savageScreen->chipset >= S3_SAVAGE4;
 335    imesa->no_rast = driQueryOptionb(&imesa->optionCache, "no_rast");
 336
 337 #if 0
 338    ctx->Const.MinLineWidth = 1.0;
 339    ctx->Const.MinLineWidthAA = 1.0;
 340    ctx->Const.MaxLineWidth = 3.0;
 341    ctx->Const.MaxLineWidthAA = 3.0;
 342    ctx->Const.LineWidthGranularity = 1.0;
 343 #endif
 344
 345    /* Dri stuff
 346     */
 347    imesa->hHWContext = driContextPriv->hHWContext;
 348    imesa->driFd = sPriv->fd;
 349    imesa->driHwLock = &sPriv->pSAREA->lock;
 350
 351    imesa->savageScreen = savageScreen;
 352    imesa->driScreen = sPriv;
 353    imesa->sarea = saPriv;
 354    imesa->glBuffer = NULL;
 355
 356    /* DMA buffer */
 357
 358    for(i=0;i<5;i++)
 359    {
 360        imesa->apertureBase[i] = ((GLuint)savageScreen->aperture.map +
 361                                  0x01000000 * i );
 362    }
 363
 364    imesa->aperturePitch = savageScreen->aperturePitch;
 365
 366    /* change texHeap initialize to support two kind of texture heap*/
 367    /* here is some parts of initialization, others in InitDriver() */
 368
 369    (void) memset( imesa->textureHeaps, 0, sizeof( imesa->textureHeaps ) );
 370    make_empty_list( & imesa->swapped );
 371
 372    textureSize[SAVAGE_CARD_HEAP] = savageScreen->textureSize[SAVAGE_CARD_HEAP];
 373    textureSize[SAVAGE_AGP_HEAP] = savageScreen->textureSize[SAVAGE_AGP_HEAP];
 374    imesa->lastTexHeap = savageScreen->texVirtual[SAVAGE_AGP_HEAP] ? 2 : 1;
 375    switch(driQueryOptioni (&imesa->optionCache, "texture_heaps")) {
 376    case DRI_CONF_TEXTURE_HEAPS_CARD: /* only use card memory, if available */
 377        if (textureSize[SAVAGE_CARD_HEAP])
 378            imesa->lastTexHeap = 1;
 379        break;
 380    case DRI_CONF_TEXTURE_HEAPS_GART: /* only use gart memory, if available */
 381        if (imesa->lastTexHeap == 2 && textureSize[SAVAGE_AGP_HEAP])
 382            textureSize[SAVAGE_CARD_HEAP] = 0;
 383        break;
 384    /*default: Nothing to do, use all available memory. */
 385    }
 386
 387    for (i = 0; i < imesa->lastTexHeap; i++) {
 388        imesa->textureHeaps[i] = driCreateTextureHeap(
 389            i, imesa,
 390            textureSize[i],
 391            11,                                  /* 2^11 = 2k alignment */
 392            SAVAGE_NR_TEX_REGIONS,
 393            (drmTextureRegionPtr)imesa->sarea->texList[i],
 394             &imesa->sarea->texAge[i],
 395             &imesa->swapped,
 396             sizeof( savageTexObj ),
 397             (destroy_texture_object_t *) savageDestroyTexObj );
 398        /* If textureSize[i] == 0 textureHeaps[i] is NULL. This can happen
 399         * if there is not enough card memory for a card texture heap. */
 400        if (imesa->textureHeaps[i])
 401            driSetTextureSwapCounterLocation( imesa->textureHeaps[i],
 402                                              & imesa->c_textureSwaps );
 403    }
 404    imesa->texture_depth = driQueryOptioni (&imesa->optionCache,
 405                                            "texture_depth");
 406    if (imesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 407        imesa->texture_depth = ( savageScreen->cpp == 4 ) ?
 408            DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 409
 410    if (savageScreen->chipset >= S3_SAVAGE4)
 411        ctx->Const.MaxTextureUnits = 2;
 412    else
 413        ctx->Const.MaxTextureUnits = 1;
 414    if (driQueryOptioni(&imesa->optionCache, "texture_units") <
 415        ctx->Const.MaxTextureUnits)
 416        ctx->Const.MaxTextureUnits =
 417            driQueryOptioni(&imesa->optionCache, "texture_units");
 418    ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
 419    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
 420
 421    driCalculateMaxTextureLevels( imesa->textureHeaps,
 422                                  imesa->lastTexHeap,
 423                                  & ctx->Const,
 424                                  4,
 425                                  11, /* max 2D texture size is 2048x2048 */
 426                                  0,  /* 3D textures unsupported. */
 427                                  0,  /* cube textures unsupported. */
 428                                  0,  /* texture rectangles unsupported. */
 429                                  12,
 430                                  GL_FALSE );
 431    if (ctx->Const.MaxTextureLevels <= 6) { /*spec requires at least 64x64*/
 432        __driUtilMessage("Not enough texture memory. "
 433                         "Falling back to indirect rendering.");
 434        Xfree(imesa);
 435        return GL_FALSE;
 436    }
 437
 438    imesa->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
 439    imesa->depth_scale = (imesa->savageScreen->zpp == 2) ?
 440        (1.0F/0xffff):(1.0F/0xffffff);
 441
 442    imesa->bufferSize = savageScreen->bufferSize;
 443    imesa->dmaVtxBuf.total = 0;
 444    imesa->dmaVtxBuf.used = 0;
 445    imesa->dmaVtxBuf.flushed = 0;
 446
 447    imesa->clientVtxBuf.total = imesa->bufferSize / 4;
 448    imesa->clientVtxBuf.used = 0;
 449    imesa->clientVtxBuf.flushed = 0;
 450    imesa->clientVtxBuf.buf = (u_int32_t *)malloc(imesa->bufferSize);
 451
 452    imesa->vtxBuf = &imesa->clientVtxBuf;
 453
 454    imesa->firstElt = -1;
 455
 456    /* Uninitialized vertex format. Force setting the vertex state in
 457     * savageRenderStart.
 458     */
 459    imesa->vertex_size = 0;
 460
 461    /* Utah stuff
 462     */
 463    imesa->new_state = ~0;
 464    imesa->new_gl_state = ~0;
 465    imesa->RenderIndex = ~0;
 466    imesa->dirty = ~0;
 467    imesa->lostContext = GL_TRUE;
 468    imesa->CurrentTexObj[0] = 0;
 469    imesa->CurrentTexObj[1] = 0;
 470
 471    /* Initialize the software rasterizer and helper modules.
 472     */
 473    _swrast_CreateContext( ctx );
 474    _ac_CreateContext( ctx );
 475    _tnl_CreateContext( ctx );
 476
 477    _swsetup_CreateContext( ctx );
 478
 479    /* Install the customized pipeline:
 480     */
 481    _tnl_destroy_pipeline( ctx );
 482    _tnl_install_pipeline( ctx, savage_pipeline );
 483    /* DRM versions before 2.1.3 would only render triangle lists. ELTS
 484     * support was added in 2.2.0. */
 485    if (sPriv->drmMinor < 2) {
 486       imesa->enable_fastpath = GL_FALSE;
 487       fprintf (stderr,
 488                "*** Disabling fast path because your DRM version is buggy "
 489                "or doesn't\n*** support ELTS. You need at least Savage DRM "
 490                "version 2.2.\n");
 491    } else
 492       imesa->enable_fastpath = driQueryOptionb(&imesa->optionCache,
 493                                                "enable_fastpath");
 494    imesa->enable_vdma = driQueryOptionb(&imesa->optionCache, "enable_vdma");
 495
 496    /* Configure swrast to match hardware characteristics:
 497     */
 498    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 499    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 500    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 501    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 502
 503    ctx->DriverCtx = (void *) imesa;
 504    imesa->glCtx = ctx;
 505
 506 #ifndef SAVAGE_DEBUG
 507    SAVAGE_DEBUG = driParseDebugString( getenv( "SAVAGE_DEBUG" ),
 508                                        debug_control );
 509 #endif
 510
 511    driInitExtensions( ctx, card_extensions, GL_TRUE );
 512
 513    savageDDInitStateFuncs( ctx );
 514    savageDDInitSpanFuncs( ctx );
 515    savageDDInitDriverFuncs( ctx );
 516    savageDDInitIoctlFuncs( ctx );
 517    savageInitTriFuncs( ctx );
 518
 519    savageDDInitState( imesa );
 520
 521    driContextPriv->driverPrivate = (void *) imesa;
 522
 523    return GL_TRUE;
 524 }
 525
 526 static void
 527 savageDestroyContext(__DRIcontextPrivate *driContextPriv)
 528 {
 529    savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
 530    GLuint i;
 531
 532    assert (imesa); /* should never be NULL */
 533    if (imesa) {
 534       savageFlushVertices(imesa);
 535       savageReleaseIndexedVerts(imesa);
 536       savageFlushCmdBuf(imesa, GL_TRUE); /* release DMA buffer */
 537       WAIT_IDLE_EMPTY(imesa);
 538
 539       for (i = 0; i < imesa->lastTexHeap; i++)
 540          driDestroyTextureHeap(imesa->textureHeaps[i]);
 541
 542       free(imesa->cmdBuf.base);
 543       free(imesa->clientVtxBuf.buf);
 544
 545       _swsetup_DestroyContext(imesa->glCtx );
 546       _tnl_DestroyContext( imesa->glCtx );
 547       _ac_DestroyContext( imesa->glCtx );
 548       _swrast_DestroyContext( imesa->glCtx );
 549
 550       /* free the Mesa context */
 551       imesa->glCtx->DriverCtx = NULL;
 552       _mesa_destroy_context(imesa->glCtx);
 553
 554       /* no longer use vertex_dma_buf*/
 555       Xfree(imesa);
 556    }
 557 }
 558
 559 static GLboolean
 560 savageCreateBuffer( __DRIscreenPrivate *driScrnPriv,
 561                     __DRIdrawablePrivate *driDrawPriv,
 562                     const __GLcontextModes *mesaVis,
 563                     GLboolean isPixmap)
 564 {
 565    if (isPixmap) {
 566       return GL_FALSE; /* not implemented */
 567    }
 568    else {
 569        GLboolean swStencil = mesaVis->stencilBits > 0 && mesaVis->depthBits != 24;
 570       driDrawPriv->driverPrivate = (void *)
 571          _mesa_create_framebuffer(mesaVis,
 572                                   GL_FALSE,  /* software depth buffer? */
 573                                   swStencil,
 574                                   mesaVis->accumRedBits > 0,
 575                                   mesaVis->alphaBits > 0 );
 576
 577       return (driDrawPriv->driverPrivate != NULL);
 578    }
 579 }
 580
 581 static void
 582 savageDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 583 {
 584    _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
 585 }
 586
 587 #if 0
 588 void XMesaSwapBuffers(__DRIdrawablePrivate *driDrawPriv)
 589 {
 590    /* XXX should do swap according to the buffer, not the context! */
 591    savageContextPtr imesa = savageCtx;
 592
 593    FLUSH_VB( imesa->glCtx, "swap buffers" );
 594    savageSwapBuffers(imesa);
 595 }
 596 #endif
 597
 598 void savageXMesaSetFrontClipRects( savageContextPtr imesa )
 599 {
 600    __DRIdrawablePrivate *dPriv = imesa->driDrawable;
 601
 602    imesa->numClipRects = dPriv->numClipRects;
 603    imesa->pClipRects = dPriv->pClipRects;
 604    imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS;
 605    imesa->drawX = dPriv->x;
 606    imesa->drawY = dPriv->y;
 607
 608    savageEmitDrawingRectangle( imesa );
 609 }
 610
 611
 612 void savageXMesaSetBackClipRects( savageContextPtr imesa )
 613 {
 614    __DRIdrawablePrivate *dPriv = imesa->driDrawable;
 615
 616    if (dPriv->numBackClipRects == 0)
 617    {
 618
 619
 620       imesa->numClipRects = dPriv->numClipRects;
 621       imesa->pClipRects = dPriv->pClipRects;
 622       imesa->drawX = dPriv->x;
 623       imesa->drawY = dPriv->y;
 624    } else {
 625
 626
 627       imesa->numClipRects = dPriv->numBackClipRects;
 628       imesa->pClipRects = dPriv->pBackClipRects;
 629       imesa->drawX = dPriv->backX;
 630       imesa->drawY = dPriv->backY;
 631    }
 632
 633    savageEmitDrawingRectangle( imesa );
 634    imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS;
 635
 636
 637 }
 638
 639
 640 static void savageXMesaWindowMoved( savageContextPtr imesa )
 641 {
 642    if (0)
 643       fprintf(stderr, "savageXMesaWindowMoved\n\n");
 644
 645    switch (imesa->glCtx->Color._DrawDestMask[0]) {
 646    case DD_FRONT_LEFT_BIT:
 647       savageXMesaSetFrontClipRects( imesa );
 648       break;
 649    case DD_BACK_LEFT_BIT:
 650       savageXMesaSetBackClipRects( imesa );
 651       break;
 652    default:
 653        break;
 654    }
 655 }
 656
 657
 658 static GLboolean
 659 savageUnbindContext(__DRIcontextPrivate *driContextPriv)
 660 {
 661    savageContextPtr savage = (savageContextPtr) driContextPriv->driverPrivate;
 662    if (savage)
 663       savage->dirty = ~0;
 664
 665    return GL_TRUE;
 666 }
 667
 668 #if 0
 669 static GLboolean
 670 savageOpenFullScreen(__DRIcontextPrivate *driContextPriv)
 671 {
 672
 673
 674
 675     if (driContextPriv) {
 676       savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
 677       imesa->IsFullScreen = GL_TRUE;
 678       imesa->backup_frontOffset = imesa->savageScreen->frontOffset;
 679       imesa->backup_backOffset = imesa->savageScreen->backOffset;
 680       imesa->backup_frontBitmapDesc = imesa->savageScreen->frontBitmapDesc;
 681       imesa->savageScreen->frontBitmapDesc = imesa->savageScreen->backBitmapDesc;
 682       imesa->toggle = TARGET_BACK;
 683    }
 684
 685     return GL_TRUE;
 686 }
 687
 688 static GLboolean
 689 savageCloseFullScreen(__DRIcontextPrivate *driContextPriv)
 690 {
 691
 692     if (driContextPriv) {
 693       savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
 694       WAIT_IDLE_EMPTY(imesa);
 695       imesa->IsFullScreen = GL_FALSE;
 696       imesa->savageScreen->frontOffset = imesa->backup_frontOffset;
 697       imesa->savageScreen->backOffset = imesa->backup_backOffset;
 698       imesa->savageScreen->frontBitmapDesc = imesa->backup_frontBitmapDesc;
 699    }
 700     return GL_TRUE;
 701 }
 702 #endif
 703
 704 static GLboolean
 705 savageMakeCurrent(__DRIcontextPrivate *driContextPriv,
 706                   __DRIdrawablePrivate *driDrawPriv,
 707                   __DRIdrawablePrivate *driReadPriv)
 708 {
 709    if (driContextPriv) {
 710       savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
 711
 712       imesa->driReadable = driReadPriv;
 713       imesa->driDrawable = driDrawPriv;
 714       imesa->mesa_drawable = driDrawPriv;
 715       imesa->dirty = ~0;
 716
 717       _mesa_make_current2(imesa->glCtx,
 718                           (GLframebuffer *) driDrawPriv->driverPrivate,
 719                           (GLframebuffer *) driReadPriv->driverPrivate);
 720
 721       savageXMesaWindowMoved( imesa );
 722    }
 723    else
 724    {
 725       _mesa_make_current(NULL, NULL);
 726    }
 727    return GL_TRUE;
 728 }
 729
 730
 731 void savageGetLock( savageContextPtr imesa, GLuint flags )
 732 {
 733    __DRIdrawablePrivate *dPriv = imesa->driDrawable;
 734    __DRIscreenPrivate *sPriv = imesa->driScreen;
 735    drm_savage_sarea_t *sarea = imesa->sarea;
 736    int me = imesa->hHWContext;
 737    int stamp = dPriv->lastStamp;
 738    int heap;
 739
 740
 741
 742    /* We know there has been contention.
 743     */
 744    drmGetLock(imesa->driFd, imesa->hHWContext, flags);
 745
 746
 747    /* Note contention for throttling hint
 748     */
 749    imesa->any_contend = 1;
 750
 751    /* If the window moved, may need to set a new cliprect now.
 752     *
 753     * NOTE: This releases and regains the hw lock, so all state
 754     * checking must be done *after* this call:
 755     */
 756    DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
 757
 758
 759
 760
 761    /* If we lost context, need to dump all registers to hardware.
 762     * Note that we don't care about 2d contexts, even if they perform
 763     * accelerated commands, so the DRI locking in the X server is even
 764     * more broken than usual.
 765     */
 766    if (sarea->ctxOwner != me) {
 767       imesa->dirty |= (SAVAGE_UPLOAD_LOCAL |
 768                        SAVAGE_UPLOAD_GLOBAL |
 769                        SAVAGE_UPLOAD_FOGTBL |
 770                        SAVAGE_UPLOAD_TEX0 |
 771                        SAVAGE_UPLOAD_TEX1 |
 772                        SAVAGE_UPLOAD_TEXGLOBAL |
 773                        SAVAGE_UPLOAD_CLIPRECTS);
 774       imesa->lostContext = GL_TRUE;
 775       sarea->ctxOwner = me;
 776    }
 777
 778    for (heap = 0; heap < imesa->lastTexHeap; ++heap) {
 779       DRI_AGE_TEXTURES( imesa->textureHeaps[heap] );
 780    }
 781
 782    if (dPriv->lastStamp != stamp)
 783       savageXMesaWindowMoved( imesa );
 784
 785
 786
 787 }
 788
 789
 790
 791 static const struct __DriverAPIRec savageAPI = {
 792    savageInitDriver,
 793    savageDestroyScreen,
 794    savageCreateContext,
 795    savageDestroyContext,
 796    savageCreateBuffer,
 797    savageDestroyBuffer,
 798    savageSwapBuffers,
 799    savageMakeCurrent,
 800    savageUnbindContext
 801 };
 802
 803
 804
 805 #ifndef DRI_NEW_INTERFACE_ONLY
 806 /*
 807  * This is the (old) bootstrap function for the driver.
 808  * The __driCreateScreen name is the symbol that libGL.so fetches.
 809  * Return:  pointer to a __DRIscreenPrivate.
 810  */
 811 void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
 812                         int numConfigs, __GLXvisualConfig *config)
 813 {
 814    __DRIscreenPrivate *psp;
 815    psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &savageAPI);
 816    return (void *) psp;
 817 }
 818 #endif /* DRI_NEW_INTERFACE_ONLY */
 819
 820
 821
 822 #ifdef USE_NEW_INTERFACE
 823 static __GLcontextModes *
 824 savageFillInModes( unsigned pixel_bits, unsigned depth_bits,
 825                    unsigned stencil_bits, GLboolean have_back_buffer )
 826 {
 827     __GLcontextModes * modes;
 828     __GLcontextModes * m;
 829     unsigned num_modes;
 830     unsigned depth_buffer_factor;
 831     unsigned back_buffer_factor;
 832     GLenum fb_format;
 833     GLenum fb_type;
 834
 835     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 836      * enough to add support.  Basically, if a context is created with an
 837      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 838      * will never be used.
 839      *
 840      * FK: What about drivers that don't use page flipping? Could they
 841      * just expose GLX_SWAP_COPY_OML?
 842      */
 843     static const GLenum back_buffer_modes[] = {
 844         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 845     };
 846
 847     u_int8_t depth_bits_array[2];
 848     u_int8_t stencil_bits_array[2];
 849
 850
 851     depth_bits_array[0] = depth_bits;
 852     depth_bits_array[1] = depth_bits;
 853
 854     /* Just like with the accumulation buffer, always provide some modes
 855      * with a stencil buffer.  It will be a sw fallback, but some apps won't
 856      * care about that.
 857      */
 858     stencil_bits_array[0] = 0;
 859     stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
 860
 861     depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
 862     back_buffer_factor  = (have_back_buffer) ? 2 : 1;
 863
 864     num_modes = depth_buffer_factor * back_buffer_factor * 4;
 865
 866     if ( pixel_bits == 16 ) {
 867         fb_format = GL_RGB;
 868         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 869     }
 870     else {
 871         fb_format = GL_BGR;
 872         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 873     }
 874
 875     modes = (*create_context_modes)( num_modes, sizeof( __GLcontextModes ) );
 876     m = modes;
 877     if ( ! driFillInModes( & m, fb_format, fb_type,
 878                            depth_bits_array, stencil_bits_array, depth_buffer_factor,
 879                            back_buffer_modes, back_buffer_factor,
 880                            GLX_TRUE_COLOR ) ) {
 881         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 882                  __func__, __LINE__ );
 883         return NULL;
 884     }
 885
 886     if ( ! driFillInModes( & m, fb_format, fb_type,
 887                            depth_bits_array, stencil_bits_array, depth_buffer_factor,
 888                            back_buffer_modes, back_buffer_factor,
 889                            GLX_DIRECT_COLOR ) ) {
 890         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 891                  __func__, __LINE__ );
 892         return NULL;
 893     }
 894
 895     /* Mark the visual as slow if there are "fake" stencil bits.
 896      */
 897     for ( m = modes ; m != NULL ; m = m->next ) {
 898         if ( (m->stencilBits != 0) && (m->stencilBits != stencil_bits) ) {
 899             m->visualRating = GLX_SLOW_CONFIG;
 900         }
 901     }
 902
 903     return modes;
 904 }
 905
 906
 907 /**
 908  * This is the bootstrap function for the driver.  libGL supplies all of the
 909  * requisite information about the system, and the driver initializes itself.
 910  * This routine also fills in the linked list pointed to by \c driver_modes
 911  * with the \c __GLcontextModes that the driver can support for windows or
 912  * pbuffers.
 913  *
 914  * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on
 915  *         failure.
 916  */
 917 PUBLIC
 918 void * __driCreateNewScreen( __DRInativeDisplay *dpy, int scrn, __DRIscreen *psc,
 919                              const __GLcontextModes * modes,
 920                              const __DRIversion * ddx_version,
 921                              const __DRIversion * dri_version,
 922                              const __DRIversion * drm_version,
 923                              const __DRIframebuffer * frame_buffer,
 924                              drmAddress pSAREA, int fd,
 925                              int internal_api_version,
 926                              __GLcontextModes ** driver_modes )
 927
 928 {
 929    __DRIscreenPrivate *psp;
 930    static const __DRIversion ddx_expected = { 2, 0, 0 };
 931    static const __DRIversion dri_expected = { 4, 0, 0 };
 932    static const __DRIversion drm_expected = { 2, 0, 0 };
 933
 934    if ( ! driCheckDriDdxDrmVersions2( "Savage",
 935                                       dri_version, & dri_expected,
 936                                       ddx_version, & ddx_expected,
 937                                       drm_version, & drm_expected ) ) {
 938       return NULL;
 939    }
 940
 941    psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL,
 942                                   ddx_version, dri_version, drm_version,
 943                                   frame_buffer, pSAREA, fd,
 944                                   internal_api_version, &savageAPI);
 945    if ( psp != NULL ) {
 946       create_context_modes = (PFNGLXCREATECONTEXTMODES)
 947           glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" );
 948       if ( create_context_modes != NULL ) {
 949          SAVAGEDRIPtr dri_priv = (SAVAGEDRIPtr)psp->pDevPriv;
 950          *driver_modes = savageFillInModes( dri_priv->cpp*8,
 951                                             (dri_priv->cpp == 2) ? 16 : 24,
 952                                             (dri_priv->cpp == 2) ? 0  : 8,
 953                                             (dri_priv->backOffset != dri_priv->depthOffset) );
 954       }
 955    }
 956
 957    return (void *) psp;
 958 }
 959 #endif /* USE_NEW_INTERFACE */