src/mesa/drivers/dri/mach64/mach64_screen.c

   1 /* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
   2 /*
   3  * Copyright 2000 Gareth Hughes
   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 "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  21  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /*
  26  * Authors:
  27  *      Gareth Hughes <gareth@valinux.com>
  28  *      Leif Delgass <ldelgass@retinalburn.net>
  29  *      Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
  30  */
  31
  32 #include "mach64_context.h"
  33 #include "mach64_ioctl.h"
  34 #include "mach64_tris.h"
  35 #include "mach64_vb.h"
  36 #include "mach64_span.h"
  37
  38 #include "context.h"
  39 #include "imports.h"
  40 #include "framebuffer.h"
  41 #include "renderbuffer.h"
  42
  43 #include "utils.h"
  44 #include "vblank.h"
  45
  46 #include "GL/internal/dri_interface.h"
  47
  48 /* Mach64 configuration
  49  */
  50 #include "xmlpool.h"
  51
  52 PUBLIC const char __driConfigOptions[] =
  53 DRI_CONF_BEGIN
  54     DRI_CONF_SECTION_PERFORMANCE
  55         DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  56     DRI_CONF_SECTION_END
  57     DRI_CONF_SECTION_DEBUG
  58         DRI_CONF_NO_RAST(false)
  59 #if ENABLE_PERF_BOXES
  60         DRI_CONF_PERFORMANCE_BOXES(false)
  61 #endif
  62     DRI_CONF_SECTION_END
  63 DRI_CONF_END;
  64 #if ENABLE_PERF_BOXES
  65 static const GLuint __driNConfigOptions = 3;
  66 #else
  67 static const GLuint __driNConfigOptions = 2;
  68 #endif
  69
  70 extern const struct dri_extension card_extensions[];
  71
  72 static __GLcontextModes * fill_in_modes( __GLcontextModes * modes,
  73                                          unsigned pixel_bits,
  74                                          unsigned depth_bits,
  75                                          unsigned stencil_bits,
  76                                          const GLenum * db_modes,
  77                                          unsigned num_db_modes,
  78                                          int visType )
  79 {
  80        static const u_int8_t bits[2][4] = {
  81         {          5,          6,          5,          0 },
  82         {          8,          8,          8,          0 }
  83     };
  84
  85     static const u_int32_t masks[2][4] = {
  86         { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 },
  87         { 0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000 }
  88     };
  89
  90     unsigned   i;
  91     unsigned   j;
  92     const unsigned index = ((pixel_bits + 15) / 16) - 1;
  93
  94     for ( i = 0 ; i < num_db_modes ; i++ ) {
  95         for ( j = 0 ; j < 2 ; j++ ) {
  96
  97             modes->redBits   = bits[index][0];
  98             modes->greenBits = bits[index][1];
  99             modes->blueBits  = bits[index][2];
 100             modes->alphaBits = bits[index][3];
 101             modes->redMask   = masks[index][0];
 102             modes->greenMask = masks[index][1];
 103             modes->blueMask  = masks[index][2];
 104             modes->alphaMask = masks[index][3];
 105             modes->rgbBits   = modes->redBits + modes->greenBits
 106                 + modes->blueBits + modes->alphaBits;
 107
 108             modes->accumRedBits   = 16 * j;
 109             modes->accumGreenBits = 16 * j;
 110             modes->accumBlueBits  = 16 * j;
 111             modes->accumAlphaBits = 0;
 112             modes->visualRating = (j == 0) ? GLX_NONE : GLX_SLOW_CONFIG;
 113             modes->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT;
 114             modes->stencilBits = stencil_bits;
 115             modes->depthBits = depth_bits;
 116
 117             modes->visualType = visType;
 118             modes->renderType = GLX_RGBA_BIT;
 119             modes->rgbMode = GL_TRUE;
 120
 121             if ( db_modes[i] == GLX_NONE ) {
 122
 123                 modes->doubleBufferMode = GL_FALSE;
 124             }
 125             else {
 126                 modes->doubleBufferMode = GL_TRUE;
 127                 modes->swapMethod = db_modes[i];
 128             }
 129
 130             modes = modes->next;
 131         }
 132     }
 133
 134     return modes;
 135 }
 136
 137
 138 static __GLcontextModes *
 139 mach64FillInModes( unsigned pixel_bits, unsigned depth_bits,
 140                  unsigned stencil_bits, GLboolean have_back_buffer )
 141 {
 142    __GLcontextModes * modes;
 143     __GLcontextModes * m;
 144     unsigned num_modes;
 145     unsigned depth_buffer_factor;
 146     unsigned back_buffer_factor;
 147     unsigned i;
 148
 149     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 150      * enough to add support.  Basically, if a context is created with an
 151      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 152      * will never be used.
 153      */
 154     static const GLenum back_buffer_modes[] = {
 155         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 156     };
 157
 158     int depth_buffer_modes[2][2];
 159
 160
 161     depth_buffer_modes[0][0] = depth_bits;
 162     depth_buffer_modes[1][0] = depth_bits;
 163
 164     /* Just like with the accumulation buffer, always provide some modes
 165      * with a stencil buffer.  It will be a sw fallback, but some apps won't
 166      * care about that.
 167      */
 168     depth_buffer_modes[0][1] = 0;
 169     depth_buffer_modes[1][1] = (stencil_bits == 0) ? 8 : stencil_bits;
 170
 171     depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
 172     back_buffer_factor  = (have_back_buffer) ? 2 : 1;
 173
 174     num_modes = depth_buffer_factor * back_buffer_factor * 4;
 175
 176     modes = (*dri_interface->createContextModes)( num_modes, sizeof( __GLcontextModes ) );
 177     m = modes;
 178     for ( i = 0 ; i < depth_buffer_factor ; i++ ) {
 179         m = fill_in_modes( m, pixel_bits,
 180                            depth_buffer_modes[i][0], depth_buffer_modes[i][1],
 181                            back_buffer_modes, back_buffer_factor,
 182                            GLX_TRUE_COLOR );
 183     }
 184
 185     for ( i = 0 ; i < depth_buffer_factor ; i++ ) {
 186         m = fill_in_modes( m, pixel_bits,
 187                            depth_buffer_modes[i][0], depth_buffer_modes[i][1],
 188                            back_buffer_modes, back_buffer_factor,
 189                            GLX_DIRECT_COLOR );
 190     }
 191
 192     /* Mark the visual as slow if there are "fake" stencil bits.
 193      */
 194     for ( m = modes ; m != NULL ; m = m->next ) {
 195        if ( (m->stencilBits != 0) && (m->stencilBits != stencil_bits) ){
 196             m->visualRating = GLX_SLOW_CONFIG;
 197         }
 198     }
 199
 200     return modes;
 201 }
 202
 203
 204 /* Create the device specific screen private data struct.
 205  */
 206 static mach64ScreenRec *
 207 mach64CreateScreen( __DRIscreenPrivate *sPriv )
 208 {
 209    mach64ScreenPtr mach64Screen;
 210    ATIDRIPtr serverInfo = (ATIDRIPtr)sPriv->pDevPriv;
 211    int i;
 212
 213    if (sPriv->devPrivSize != sizeof(ATIDRIRec)) {
 214       fprintf(stderr,"\nERROR!  sizeof(ATIDRIRec) does not match passed size from device driver\n");
 215       return GL_FALSE;
 216    }
 217
 218    if ( MACH64_DEBUG & DEBUG_VERBOSE_DRI )
 219       fprintf( stderr, "%s\n", __FUNCTION__ );
 220
 221    /* Allocate the private area */
 222    mach64Screen = (mach64ScreenPtr) CALLOC( sizeof(*mach64Screen) );
 223    if ( !mach64Screen ) return NULL;
 224
 225    /* parse information in __driConfigOptions */
 226    driParseOptionInfo (&mach64Screen->optionCache,
 227                        __driConfigOptions, __driNConfigOptions);
 228
 229    mach64Screen->IsPCI = serverInfo->IsPCI;
 230
 231    {
 232       drm_mach64_getparam_t gp;
 233       int ret;
 234
 235       gp.param = MACH64_PARAM_IRQ_NR;
 236       gp.value = (void *) &mach64Screen->irq;
 237
 238       ret = drmCommandWriteRead( sPriv->fd, DRM_MACH64_GETPARAM,
 239                                     &gp, sizeof(gp));
 240       if (ret) {
 241          fprintf(stderr, "DRM_MACH64_GETPARAM (MACH64_PARAM_IRQ_NR): %d\n", ret);
 242          FREE( mach64Screen );
 243          return NULL;
 244       }
 245    }
 246
 247    mach64Screen->mmio.handle = serverInfo->regs;
 248    mach64Screen->mmio.size   = serverInfo->regsSize;
 249    if ( drmMap( sPriv->fd,
 250                 mach64Screen->mmio.handle,
 251                 mach64Screen->mmio.size,
 252                 (drmAddressPtr)&mach64Screen->mmio.map ) != 0 ) {
 253       FREE( mach64Screen );
 254       return NULL;
 255    }
 256
 257    mach64Screen->buffers = drmMapBufs( sPriv->fd );
 258    if ( !mach64Screen->buffers ) {
 259       drmUnmap( (drmAddress)mach64Screen->mmio.map,
 260                 mach64Screen->mmio.size );
 261       FREE( mach64Screen );
 262       return NULL;
 263    }
 264
 265    if ( !mach64Screen->IsPCI ) {
 266       mach64Screen->agpTextures.handle = serverInfo->agp;
 267       mach64Screen->agpTextures.size   = serverInfo->agpSize;
 268       if ( drmMap( sPriv->fd,
 269                    mach64Screen->agpTextures.handle,
 270                    mach64Screen->agpTextures.size,
 271                    (drmAddressPtr)&mach64Screen->agpTextures.map ) ) {
 272          drmUnmapBufs( mach64Screen->buffers );
 273          drmUnmap( (drmAddress)mach64Screen->mmio.map, mach64Screen->mmio.size );
 274          FREE( mach64Screen );
 275          return NULL;
 276       }
 277    }
 278
 279    mach64Screen->AGPMode        = serverInfo->AGPMode;
 280
 281    mach64Screen->chipset        = serverInfo->chipset;
 282    mach64Screen->width          = serverInfo->width;
 283    mach64Screen->height         = serverInfo->height;
 284    mach64Screen->mem            = serverInfo->mem;
 285    mach64Screen->cpp            = serverInfo->cpp;
 286
 287    mach64Screen->frontOffset    = serverInfo->frontOffset;
 288    mach64Screen->frontPitch     = serverInfo->frontPitch;
 289    mach64Screen->backOffset     = serverInfo->backOffset;
 290    mach64Screen->backPitch      = serverInfo->backPitch;
 291    mach64Screen->depthOffset    = serverInfo->depthOffset;
 292    mach64Screen->depthPitch     = serverInfo->depthPitch;
 293
 294    mach64Screen->texOffset[MACH64_CARD_HEAP] = serverInfo->textureOffset;
 295    mach64Screen->texSize[MACH64_CARD_HEAP] = serverInfo->textureSize;
 296    mach64Screen->logTexGranularity[MACH64_CARD_HEAP] =
 297       serverInfo->logTextureGranularity;
 298
 299    if ( mach64Screen->IsPCI ) {
 300       mach64Screen->numTexHeaps = MACH64_NR_TEX_HEAPS - 1;
 301       mach64Screen->firstTexHeap = MACH64_CARD_HEAP;
 302       mach64Screen->texOffset[MACH64_AGP_HEAP] = 0;
 303       mach64Screen->texSize[MACH64_AGP_HEAP] = 0;
 304       mach64Screen->logTexGranularity[MACH64_AGP_HEAP] = 0;
 305    } else {
 306       if (serverInfo->textureSize > 0) {
 307          mach64Screen->numTexHeaps = MACH64_NR_TEX_HEAPS;
 308          mach64Screen->firstTexHeap = MACH64_CARD_HEAP;
 309       } else {
 310          mach64Screen->numTexHeaps = MACH64_NR_TEX_HEAPS - 1;
 311          mach64Screen->firstTexHeap = MACH64_AGP_HEAP;
 312       }
 313       mach64Screen->texOffset[MACH64_AGP_HEAP] = serverInfo->agpTextureOffset;
 314       mach64Screen->texSize[MACH64_AGP_HEAP] = serverInfo->agpSize;
 315       mach64Screen->logTexGranularity[MACH64_AGP_HEAP] = serverInfo->logAgpTextureGranularity;
 316    }
 317
 318    mach64Screen->driScreen = sPriv;
 319
 320    i = 0;
 321    mach64Screen->extensions[i++] = &driFrameTrackingExtension.base;
 322    if ( mach64Screen->irq != 0 ) {
 323       mach64Screen->extensions[i++] = &driSwapControlExtension.base;
 324       mach64Screen->extensions[i++] = &driMediaStreamCounterExtension.base;
 325    }
 326    mach64Screen->extensions[i++] = NULL;
 327    sPriv->extensions = mach64Screen->extensions;
 328
 329    return mach64Screen;
 330 }
 331
 332 /* Destroy the device specific screen private data struct.
 333  */
 334 static void
 335 mach64DestroyScreen( __DRIscreenPrivate *driScreen )
 336 {
 337    mach64ScreenRec *mach64Screen = (mach64ScreenRec *) driScreen->private;
 338
 339    if ( !mach64Screen )
 340       return;
 341
 342    if ( MACH64_DEBUG & DEBUG_VERBOSE_DRI )
 343       fprintf( stderr, "%s\n", __FUNCTION__ );
 344
 345    if ( !mach64Screen->IsPCI ) {
 346       drmUnmap( (drmAddress)mach64Screen->agpTextures.map,
 347                 mach64Screen->agpTextures.size );
 348    }
 349
 350    drmUnmapBufs( mach64Screen->buffers );
 351    drmUnmap( (drmAddress)mach64Screen->mmio.map, mach64Screen->mmio.size );
 352
 353    FREE( mach64Screen );
 354    driScreen->private = NULL;
 355 }
 356
 357
 358 /* Create and initialize the Mesa and driver specific pixmap buffer
 359  * data.
 360  */
 361 static GLboolean
 362 mach64CreateBuffer( __DRIscreenPrivate *driScrnPriv,
 363                     __DRIdrawablePrivate *driDrawPriv,
 364                     const __GLcontextModes *mesaVis,
 365                     GLboolean isPixmap )
 366 {
 367    mach64ScreenPtr screen = (mach64ScreenPtr) driScrnPriv->private;
 368
 369    if (isPixmap) {
 370       return GL_FALSE; /* not implemented */
 371    }
 372    else {
 373       struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
 374
 375       {
 376          driRenderbuffer *frontRb
 377             = driNewRenderbuffer(GL_RGBA,
 378                                  NULL,
 379                                  screen->cpp,
 380                                  screen->frontOffset, screen->frontPitch,
 381                                  driDrawPriv);
 382          mach64SetSpanFunctions(frontRb, mesaVis);
 383          _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
 384       }
 385
 386       if (mesaVis->doubleBufferMode) {
 387          driRenderbuffer *backRb
 388             = driNewRenderbuffer(GL_RGBA,
 389                                  NULL,
 390                                  screen->cpp,
 391                                  screen->backOffset, screen->backPitch,
 392                                  driDrawPriv);
 393          mach64SetSpanFunctions(backRb, mesaVis);
 394          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
 395       }
 396
 397       if (mesaVis->depthBits == 16) {
 398          driRenderbuffer *depthRb
 399             = driNewRenderbuffer(GL_DEPTH_COMPONENT16,
 400                                  NULL, screen->cpp,
 401                                  screen->depthOffset, screen->depthPitch,
 402                                  driDrawPriv);
 403          mach64SetSpanFunctions(depthRb, mesaVis);
 404          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 405       }
 406       else if (mesaVis->depthBits == 24) {
 407          /* XXX I don't think 24-bit Z is supported - so this isn't used */
 408          driRenderbuffer *depthRb
 409             = driNewRenderbuffer(GL_DEPTH_COMPONENT24,
 410                                  NULL,
 411                                  screen->cpp,
 412                                  screen->depthOffset, screen->depthPitch,
 413                                  driDrawPriv);
 414          mach64SetSpanFunctions(depthRb, mesaVis);
 415          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 416       }
 417
 418       _mesa_add_soft_renderbuffers(fb,
 419                                    GL_FALSE, /* color */
 420                                    GL_FALSE, /* depth */
 421                                    mesaVis->stencilBits > 0,
 422                                    mesaVis->accumRedBits > 0,
 423                                    GL_FALSE, /* alpha */
 424                                    GL_FALSE /* aux */);
 425       driDrawPriv->driverPrivate = (void *) fb;
 426
 427       return (driDrawPriv->driverPrivate != NULL);
 428    }
 429 }
 430
 431
 432 static void
 433 mach64DestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 434 {
 435    _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
 436 }
 437
 438
 439 /* Copy the back color buffer to the front color buffer */
 440 static void
 441 mach64SwapBuffers(__DRIdrawablePrivate *dPriv)
 442 {
 443    if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
 444       mach64ContextPtr mmesa;
 445       GLcontext *ctx;
 446       mmesa = (mach64ContextPtr) dPriv->driContextPriv->driverPrivate;
 447       ctx = mmesa->glCtx;
 448       if (ctx->Visual.doubleBufferMode) {
 449          _mesa_notifySwapBuffers( ctx );  /* flush pending rendering comands */
 450          mach64CopyBuffer( dPriv );
 451       }
 452    }
 453    else {
 454       /* XXX this shouldn't be an error but we can't handle it for now */
 455       _mesa_problem(NULL, "%s: drawable has no context!", __FUNCTION__);
 456    }
 457 }
 458
 459
 460 /* Initialize the driver specific screen private data.
 461  */
 462 static GLboolean
 463 mach64InitDriver( __DRIscreenPrivate *driScreen )
 464 {
 465    driScreen->private = (void *) mach64CreateScreen( driScreen );
 466
 467    if ( !driScreen->private ) {
 468       mach64DestroyScreen( driScreen );
 469       return GL_FALSE;
 470    }
 471
 472    return GL_TRUE;
 473 }
 474
 475
 476 static struct __DriverAPIRec mach64API = {
 477    .DestroyScreen   = mach64DestroyScreen,
 478    .CreateContext   = mach64CreateContext,
 479    .DestroyContext  = mach64DestroyContext,
 480    .CreateBuffer    = mach64CreateBuffer,
 481    .DestroyBuffer   = mach64DestroyBuffer,
 482    .SwapBuffers     = mach64SwapBuffers,
 483    .MakeCurrent     = mach64MakeCurrent,
 484    .UnbindContext   = mach64UnbindContext,
 485    .GetSwapInfo     = NULL,
 486    .GetMSC          = driGetMSC32,
 487    .WaitForMSC      = driWaitForMSC32,
 488    .WaitForSBC      = NULL,
 489    .SwapBuffersMSC  = NULL
 490 };
 491
 492
 493 /**
 494  * This is the driver specific part of the createNewScreen entry point.
 495  *
 496  * \todo maybe fold this into intelInitDriver
 497  *
 498  * \return the __GLcontextModes supported by this driver
 499  */
 500 __GLcontextModes *__driDriverInitScreen(__DRIscreenPrivate *psp)
 501 {
 502    static const __DRIversion ddx_expected = { 6, 4, 0 };
 503    static const __DRIversion dri_expected = { 4, 0, 0 };
 504    static const __DRIversion drm_expected = { 2, 0, 0 };
 505    ATIDRIPtr dri_priv = (ATIDRIPtr) psp->pDevPriv;
 506
 507    psp->DriverAPI = mach64API;
 508    if ( ! driCheckDriDdxDrmVersions2( "Mach64",
 509                                       &psp->dri_version, & dri_expected,
 510                                       &psp->ddx_version, & ddx_expected,
 511                                       &psp->drm_version, & drm_expected ) ) {
 512       return NULL;
 513    }
 514
 515    /* Calling driInitExtensions here, with a NULL context pointer,
 516     * does not actually enable the extensions.  It just makes sure
 517     * that all the dispatch offsets for all the extensions that
 518     * *might* be enables are known.  This is needed because the
 519     * dispatch offsets need to be known when _mesa_context_create is
 520     * called, but we can't enable the extensions until we have a
 521     * context pointer.
 522     *
 523     * Hello chicken.  Hello egg.  How are you two today?
 524     */
 525    driInitExtensions( NULL, card_extensions, GL_FALSE );
 526
 527    if (!mach64InitDriver(psp))
 528       return NULL;
 529
 530    return  mach64FillInModes( dri_priv->cpp * 8, 16, 0, 1);
 531 }