src/mesa/drivers/dri/unichrome/via_screen.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 #include <stdio.h>
  26
  27 #include "utils.h"
  28 #include "dri_util.h"
  29 #include "glheader.h"
  30 #include "context.h"
  31 #include "framebuffer.h"
  32 #include "renderbuffer.h"
  33 #include "matrix.h"
  34 #include "simple_list.h"
  35 #include "vblank.h"
  36
  37 #include "via_state.h"
  38 #include "via_tex.h"
  39 #include "via_span.h"
  40 #include "via_tris.h"
  41 #include "via_ioctl.h"
  42 #include "via_screen.h"
  43 #include "via_fb.h"
  44 #include "via_dri.h"
  45
  46 #include "GL/internal/dri_interface.h"
  47
  48 /* Radeon configuration
  49  */
  50 #include "xmlpool.h"
  51
  52 const char __driConfigOptions[] =
  53 DRI_CONF_BEGIN
  54     DRI_CONF_SECTION_PERFORMANCE
  55         DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
  56         DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  57     DRI_CONF_SECTION_END
  58     DRI_CONF_SECTION_DEBUG
  59         DRI_CONF_NO_RAST(false)
  60     DRI_CONF_SECTION_END
  61 DRI_CONF_END;
  62 static const GLuint __driNConfigOptions = 3;
  63
  64 extern const struct dri_extension card_extensions[];
  65
  66 static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo );
  67
  68 static drmBufMapPtr via_create_empty_buffers(void)
  69 {
  70     drmBufMapPtr retval;
  71
  72     retval = (drmBufMapPtr)MALLOC(sizeof(drmBufMap));
  73     if (retval == NULL) return NULL;
  74     memset(retval, 0, sizeof(drmBufMap));
  75
  76     retval->list = (drmBufPtr)MALLOC(sizeof(drmBuf) * VIA_DMA_BUF_NR);
  77     if (retval->list == NULL) {
  78        FREE(retval);
  79        return NULL;
  80     }
  81     memset(retval->list, 0, sizeof(drmBuf) * VIA_DMA_BUF_NR);
  82     return retval;
  83 }
  84
  85 static void via_free_empty_buffers( drmBufMapPtr bufs )
  86 {
  87    if (bufs && bufs->list)
  88       FREE(bufs->list);
  89
  90    if (bufs)
  91       FREE(bufs);
  92 }
  93
  94
  95 static GLboolean
  96 viaInitDriver(__DRIscreenPrivate *sPriv)
  97 {
  98     viaScreenPrivate *viaScreen;
  99     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 100     PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
 101       (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
 102     void * const psc = sPriv->psc->screenConfigs;
 103     drmAddress map;
 104
 105     if (sPriv->devPrivSize != sizeof(VIADRIRec)) {
 106       fprintf(stderr,"\nERROR!  sizeof(VIADRIRec) does not match passed size from device driver\n");
 107       return GL_FALSE;
 108     }
 109
 110     /* Allocate the private area */
 111     viaScreen = (viaScreenPrivate *) CALLOC(sizeof(viaScreenPrivate));
 112     if (!viaScreen) {
 113         __driUtilMessage("viaInitDriver: alloc viaScreenPrivate struct failed");
 114         return GL_FALSE;
 115     }
 116
 117     /* parse information in __driConfigOptions */
 118     driParseOptionInfo (&viaScreen->optionCache,
 119                         __driConfigOptions, __driNConfigOptions);
 120
 121
 122     viaScreen->driScrnPriv = sPriv;
 123     sPriv->private = (void *)viaScreen;
 124
 125     viaScreen->deviceID = gDRIPriv->deviceID;
 126     viaScreen->width = gDRIPriv->width;
 127     viaScreen->height = gDRIPriv->height;
 128     viaScreen->mem = gDRIPriv->mem;
 129     viaScreen->bitsPerPixel = gDRIPriv->bytesPerPixel * 8;
 130     viaScreen->bytesPerPixel = gDRIPriv->bytesPerPixel;
 131     viaScreen->fbOffset = 0;
 132     viaScreen->fbSize = gDRIPriv->fbSize;
 133     viaScreen->irqEnabled = gDRIPriv->irqEnabled;
 134     viaScreen->irqEnabled = 1;
 135
 136     if (VIA_DEBUG & DEBUG_DRI) {
 137         fprintf(stderr, "deviceID = %08x\n", viaScreen->deviceID);
 138         fprintf(stderr, "width = %08x\n", viaScreen->width);
 139         fprintf(stderr, "height = %08x\n", viaScreen->height);
 140         fprintf(stderr, "cpp = %08x\n", viaScreen->cpp);
 141         fprintf(stderr, "fbOffset = %08x\n", viaScreen->fbOffset);
 142     }
 143
 144     viaScreen->bufs = via_create_empty_buffers();
 145     if (viaScreen->bufs == NULL) {
 146         __driUtilMessage("viaInitDriver: via_create_empty_buffers() failed");
 147         FREE(viaScreen);
 148         return GL_FALSE;
 149     }
 150
 151     if (drmMap(sPriv->fd,
 152                gDRIPriv->regs.handle,
 153                gDRIPriv->regs.size,
 154                &map) != 0) {
 155         FREE(viaScreen);
 156         sPriv->private = NULL;
 157         __driUtilMessage("viaInitDriver: drmMap regs failed");
 158         return GL_FALSE;
 159     }
 160
 161     if (gDRIPriv->agp.size) {
 162         if (drmMap(sPriv->fd,
 163                    gDRIPriv->agp.handle,
 164                    gDRIPriv->agp.size,
 165                    (drmAddress *)&viaScreen->agpLinearStart) != 0) {
 166             drmUnmap(viaScreen->reg, gDRIPriv->agp.size);
 167             FREE(viaScreen);
 168             sPriv->private = NULL;
 169             __driUtilMessage("viaInitDriver: drmMap agp failed");
 170             return GL_FALSE;
 171         }
 172         viaScreen->agpBase = (GLuint *)gDRIPriv->agp.handle;
 173     } else
 174         viaScreen->agpLinearStart = 0;
 175
 176     viaScreen->sareaPrivOffset = gDRIPriv->sarea_priv_offset;
 177
 178     if ( glx_enable_extension != NULL ) {
 179        if ( viaScreen->irqEnabled ) {
 180           (*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
 181           (*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
 182           (*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
 183        }
 184
 185        (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
 186     }
 187
 188     return GL_TRUE;
 189 }
 190
 191 static void
 192 viaDestroyScreen(__DRIscreenPrivate *sPriv)
 193 {
 194     viaScreenPrivate *viaScreen = (viaScreenPrivate *)sPriv->private;
 195     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 196
 197     drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 198     if (gDRIPriv->agp.size)
 199         drmUnmap(viaScreen->agpLinearStart, gDRIPriv->agp.size);
 200
 201     via_free_empty_buffers(viaScreen->bufs);
 202
 203     FREE(viaScreen);
 204     sPriv->private = NULL;
 205 }
 206
 207
 208 static GLboolean
 209 viaCreateBuffer(__DRIscreenPrivate *driScrnPriv,
 210                 __DRIdrawablePrivate *driDrawPriv,
 211                 const __GLcontextModes *mesaVis,
 212                 GLboolean isPixmap)
 213 {
 214     viaScreenPrivate *screen = (viaScreenPrivate *) driScrnPriv->private;
 215
 216     GLboolean swStencil = (mesaVis->stencilBits > 0 &&
 217                            mesaVis->depthBits != 24);
 218
 219
 220     if (isPixmap) {
 221        /* KW: This needs work, disabled for now:
 222         */
 223 #if 0
 224         driDrawPriv->driverPrivate = (void *)
 225             _mesa_create_framebuffer(mesaVis,
 226                                      GL_FALSE,  /* software depth buffer? */
 227                                      swStencil,
 228                                      mesaVis->accumRedBits > 0,
 229                                      GL_FALSE   /* s/w alpha planes */);
 230
 231         return (driDrawPriv->driverPrivate != NULL);
 232 #endif
 233         return GL_FALSE;
 234     }
 235     else {
 236 #if 0
 237         driDrawPriv->driverPrivate = (void *)
 238             _mesa_create_framebuffer(mesaVis,
 239                                      GL_FALSE,  /* software depth buffer? */
 240                                      swStencil,
 241                                      mesaVis->accumRedBits > 0,
 242                                      GL_FALSE   /* s/w alpha planes */);
 243 #else
 244       struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
 245
 246       /* XXX check/fix the offset/pitch parameters! */
 247       {
 248          driRenderbuffer *frontRb
 249             = driNewRenderbuffer(GL_RGBA, screen->bytesPerPixel,
 250                                  0, screen->width);
 251          viaSetSpanFunctions(frontRb, mesaVis);
 252          _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
 253       }
 254
 255       if (mesaVis->doubleBufferMode) {
 256          driRenderbuffer *backRb
 257             = driNewRenderbuffer(GL_RGBA, screen->bytesPerPixel,
 258                                  0, screen->width);
 259          viaSetSpanFunctions(backRb, mesaVis);
 260          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
 261       }
 262
 263       if (mesaVis->depthBits == 16) {
 264          driRenderbuffer *depthRb
 265             = driNewRenderbuffer(GL_DEPTH_COMPONENT16, screen->bytesPerPixel,
 266                                  0, screen->width);
 267          viaSetSpanFunctions(depthRb, mesaVis);
 268          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 269       }
 270       else if (mesaVis->depthBits == 24) {
 271          driRenderbuffer *depthRb
 272             = driNewRenderbuffer(GL_DEPTH_COMPONENT24, screen->bytesPerPixel,
 273                                  0, screen->width);
 274          viaSetSpanFunctions(depthRb, mesaVis);
 275          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 276       }
 277       else if (mesaVis->depthBits == 32) {
 278          driRenderbuffer *depthRb
 279             = driNewRenderbuffer(GL_DEPTH_COMPONENT32, screen->bytesPerPixel,
 280                                  0, screen->width);
 281          viaSetSpanFunctions(depthRb, mesaVis);
 282          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 283       }
 284
 285       if (mesaVis->stencilBits > 0 && !swStencil) {
 286          driRenderbuffer *stencilRb
 287             = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT, screen->bytesPerPixel,
 288                                  0, screen->width);
 289          viaSetSpanFunctions(stencilRb, mesaVis);
 290          _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base);
 291       }
 292
 293       _mesa_add_soft_renderbuffers(fb,
 294                                    GL_FALSE, /* color */
 295                                    GL_FALSE, /* depth */
 296                                    swStencil,
 297                                    mesaVis->accumRedBits > 0,
 298                                    GL_FALSE, /* alpha */
 299                                    GL_FALSE /* aux */);
 300       driDrawPriv->driverPrivate = (void *) fb;
 301 #endif
 302         return (driDrawPriv->driverPrivate != NULL);
 303    }
 304 }
 305
 306
 307 static void
 308 viaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 309 {
 310     _mesa_destroy_framebuffer((GLframebuffer *)(driDrawPriv->driverPrivate));
 311 }
 312
 313
 314
 315 static struct __DriverAPIRec viaAPI = {
 316    .InitDriver      = viaInitDriver,
 317    .DestroyScreen   = viaDestroyScreen,
 318    .CreateContext   = viaCreateContext,
 319    .DestroyContext  = viaDestroyContext,
 320    .CreateBuffer    = viaCreateBuffer,
 321    .DestroyBuffer   = viaDestroyBuffer,
 322    .SwapBuffers     = viaSwapBuffers,
 323    .MakeCurrent     = viaMakeCurrent,
 324    .UnbindContext   = viaUnbindContext,
 325    .GetSwapInfo     = getSwapInfo,
 326    .GetMSC          = driGetMSC32,
 327    .WaitForMSC      = driWaitForMSC32,
 328    .WaitForSBC      = NULL,
 329    .SwapBuffersMSC  = NULL
 330 };
 331
 332
 333 static __GLcontextModes *
 334 viaFillInModes( unsigned pixel_bits, GLboolean have_back_buffer )
 335 {
 336     __GLcontextModes * modes;
 337     __GLcontextModes * m;
 338     unsigned num_modes;
 339     const unsigned back_buffer_factor = (have_back_buffer) ? 2 : 1;
 340     GLenum fb_format;
 341     GLenum fb_type;
 342
 343     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 344      * enough to add support.  Basically, if a context is created with an
 345      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 346      * will never be used.
 347      */
 348     static const GLenum back_buffer_modes[] = {
 349         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 350     };
 351
 352     /* The 32-bit depth-buffer mode isn't supported yet, so don't actually
 353      * enable it.
 354      */
 355     static const u_int8_t depth_bits_array[4]   = { 0, 16, 24, 32 };
 356     static const u_int8_t stencil_bits_array[4] = { 0,  0,  8,  0 };
 357     const unsigned depth_buffer_factor = 3;
 358
 359
 360     num_modes = depth_buffer_factor * back_buffer_factor * 4;
 361
 362     if ( pixel_bits == 16 ) {
 363         fb_format = GL_RGB;
 364         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 365     }
 366     else {
 367         fb_format = GL_BGRA;
 368         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 369     }
 370
 371     modes = (*dri_interface->createContextModes)( num_modes, sizeof( __GLcontextModes ) );
 372     m = modes;
 373     if ( ! driFillInModes( & m, fb_format, fb_type,
 374                            depth_bits_array, stencil_bits_array,
 375                            depth_buffer_factor,
 376                            back_buffer_modes, back_buffer_factor,
 377                            GLX_TRUE_COLOR ) ) {
 378         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 379                  __func__, __LINE__ );
 380         return NULL;
 381     }
 382
 383     if ( ! driFillInModes( & m, fb_format, fb_type,
 384                            depth_bits_array, stencil_bits_array,
 385                            depth_buffer_factor,
 386                            back_buffer_modes, back_buffer_factor,
 387                            GLX_DIRECT_COLOR ) ) {
 388         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 389                  __func__, __LINE__ );
 390         return NULL;
 391     }
 392
 393     return modes;
 394 }
 395
 396
 397 /**
 398  * This is the bootstrap function for the driver.  libGL supplies all of the
 399  * requisite information about the system, and the driver initializes itself.
 400  * This routine also fills in the linked list pointed to by \c driver_modes
 401  * with the \c __GLcontextModes that the driver can support for windows or
 402  * pbuffers.
 403  *
 404  * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on
 405  *         failure.
 406  */
 407 PUBLIC
 408 void * __driCreateNewScreen_20050727( __DRInativeDisplay *dpy, int scrn,
 409                              __DRIscreen *psc,
 410                              const __GLcontextModes * modes,
 411                              const __DRIversion * ddx_version,
 412                              const __DRIversion * dri_version,
 413                              const __DRIversion * drm_version,
 414                              const __DRIframebuffer * frame_buffer,
 415                              drmAddress pSAREA, int fd,
 416                              int internal_api_version,
 417                              const __DRIinterfaceMethods * interface,
 418                              __GLcontextModes ** driver_modes )
 419
 420 {
 421    __DRIscreenPrivate *psp;
 422    static const __DRIversion ddx_expected = { 4, 0, 0 };
 423    static const __DRIversion dri_expected = { 4, 0, 0 };
 424    static const __DRIversion drm_expected = { 2, 3, 0 };
 425
 426    dri_interface = interface;
 427
 428    if ( ! driCheckDriDdxDrmVersions2( "Unichrome",
 429                                       dri_version, & dri_expected,
 430                                       ddx_version, & ddx_expected,
 431                                       drm_version, & drm_expected ) ) {
 432       return NULL;
 433    }
 434
 435    psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL,
 436                                   ddx_version, dri_version, drm_version,
 437                                   frame_buffer, pSAREA, fd,
 438                                   internal_api_version, &viaAPI);
 439    if ( psp != NULL ) {
 440       VIADRIPtr dri_priv = (VIADRIPtr) psp->pDevPriv;
 441       *driver_modes = viaFillInModes( dri_priv->bytesPerPixel * 8,
 442                                       GL_TRUE );
 443
 444       /* Calling driInitExtensions here, with a NULL context pointer, does not actually
 445        * enable the extensions.  It just makes sure that all the dispatch offsets for all
 446        * the extensions that *might* be enables are known.  This is needed because the
 447        * dispatch offsets need to be known when _mesa_context_create is called, but we can't
 448        * enable the extensions until we have a context pointer.
 449        *
 450        * Hello chicken.  Hello egg.  How are you two today?
 451        */
 452       driInitExtensions( NULL, card_extensions, GL_FALSE );
 453    }
 454
 455    fprintf(stderr, "%s - succeeded\n", __FUNCTION__);
 456    return (void *) psp;
 457 }
 458
 459
 460 /**
 461  * Get information about previous buffer swaps.
 462  */
 463 static int
 464 getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo )
 465 {
 466    struct via_context *vmesa;
 467
 468    if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL)
 469         || (dPriv->driContextPriv->driverPrivate == NULL)
 470         || (sInfo == NULL) ) {
 471       return -1;
 472    }
 473
 474    vmesa = (struct via_context *) dPriv->driContextPriv->driverPrivate;
 475    sInfo->swap_count = vmesa->swap_count;
 476    sInfo->swap_ust = vmesa->swap_ust;
 477    sInfo->swap_missed_count = vmesa->swap_missed_count;
 478
 479    sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
 480        ? driCalculateSwapUsage( dPriv, 0, vmesa->swap_missed_ust )
 481        : 0.0;
 482
 483    return 0;
 484 }