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 #include "drirenderbuffer.h"
  48
  49 #include "xmlpool.h"
  50
  51 PUBLIC const char __driConfigOptions[] =
  52 DRI_CONF_BEGIN
  53     DRI_CONF_SECTION_PERFORMANCE
  54         DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  55     DRI_CONF_SECTION_END
  56     DRI_CONF_SECTION_QUALITY
  57         DRI_CONF_EXCESS_MIPMAP(false)
  58     DRI_CONF_SECTION_END
  59     DRI_CONF_SECTION_DEBUG
  60         DRI_CONF_NO_RAST(false)
  61     DRI_CONF_SECTION_END
  62 DRI_CONF_END;
  63 static const GLuint __driNConfigOptions = 3;
  64
  65 extern const struct dri_extension card_extensions[];
  66
  67 static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo );
  68
  69 static drmBufMapPtr via_create_empty_buffers(void)
  70 {
  71     drmBufMapPtr retval;
  72
  73     retval = (drmBufMapPtr)MALLOC(sizeof(drmBufMap));
  74     if (retval == NULL) return NULL;
  75     memset(retval, 0, sizeof(drmBufMap));
  76
  77     retval->list = (drmBufPtr)MALLOC(sizeof(drmBuf) * VIA_DMA_BUF_NR);
  78     if (retval->list == NULL) {
  79        FREE(retval);
  80        return NULL;
  81     }
  82     memset(retval->list, 0, sizeof(drmBuf) * VIA_DMA_BUF_NR);
  83     return retval;
  84 }
  85
  86 static void via_free_empty_buffers( drmBufMapPtr bufs )
  87 {
  88    if (bufs && bufs->list)
  89       FREE(bufs->list);
  90
  91    if (bufs)
  92       FREE(bufs);
  93 }
  94
  95
  96 static GLboolean
  97 viaInitDriver(__DRIscreenPrivate *sPriv)
  98 {
  99     viaScreenPrivate *viaScreen;
 100     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 101     int i;
 102
 103     if (sPriv->devPrivSize != sizeof(VIADRIRec)) {
 104       fprintf(stderr,"\nERROR!  sizeof(VIADRIRec) does not match passed size from device driver\n");
 105       return GL_FALSE;
 106     }
 107
 108     /* Allocate the private area */
 109     viaScreen = (viaScreenPrivate *) CALLOC(sizeof(viaScreenPrivate));
 110     if (!viaScreen) {
 111         __driUtilMessage("viaInitDriver: alloc viaScreenPrivate struct failed");
 112         return GL_FALSE;
 113     }
 114
 115     /* parse information in __driConfigOptions */
 116     driParseOptionInfo (&viaScreen->optionCache,
 117                         __driConfigOptions, __driNConfigOptions);
 118
 119
 120     viaScreen->driScrnPriv = sPriv;
 121     sPriv->private = (void *)viaScreen;
 122
 123     viaScreen->deviceID = gDRIPriv->deviceID;
 124     viaScreen->width = gDRIPriv->width;
 125     viaScreen->height = gDRIPriv->height;
 126     viaScreen->mem = gDRIPriv->mem;
 127     viaScreen->bitsPerPixel = gDRIPriv->bytesPerPixel * 8;
 128     viaScreen->bytesPerPixel = gDRIPriv->bytesPerPixel;
 129     viaScreen->fbOffset = 0;
 130     viaScreen->fbSize = gDRIPriv->fbSize;
 131     viaScreen->irqEnabled = gDRIPriv->irqEnabled;
 132
 133     if (VIA_DEBUG & DEBUG_DRI) {
 134         fprintf(stderr, "deviceID = %08x\n", viaScreen->deviceID);
 135         fprintf(stderr, "width = %08x\n", viaScreen->width);
 136         fprintf(stderr, "height = %08x\n", viaScreen->height);
 137         fprintf(stderr, "cpp = %08x\n", viaScreen->cpp);
 138         fprintf(stderr, "fbOffset = %08x\n", viaScreen->fbOffset);
 139     }
 140
 141     viaScreen->bufs = via_create_empty_buffers();
 142     if (viaScreen->bufs == NULL) {
 143         __driUtilMessage("viaInitDriver: via_create_empty_buffers() failed");
 144         FREE(viaScreen);
 145         return GL_FALSE;
 146     }
 147
 148     if (drmMap(sPriv->fd,
 149                gDRIPriv->regs.handle,
 150                gDRIPriv->regs.size,
 151                &viaScreen->reg) != 0) {
 152         FREE(viaScreen);
 153         sPriv->private = NULL;
 154         __driUtilMessage("viaInitDriver: drmMap regs failed");
 155         return GL_FALSE;
 156     }
 157
 158     if (gDRIPriv->agp.size) {
 159         if (drmMap(sPriv->fd,
 160                    gDRIPriv->agp.handle,
 161                    gDRIPriv->agp.size,
 162                    (drmAddress *)&viaScreen->agpLinearStart) != 0) {
 163             drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 164             FREE(viaScreen);
 165             sPriv->private = NULL;
 166             __driUtilMessage("viaInitDriver: drmMap agp failed");
 167             return GL_FALSE;
 168         }
 169
 170         viaScreen->agpBase = drmAgpBase(sPriv->fd);
 171     } else
 172         viaScreen->agpLinearStart = 0;
 173
 174     viaScreen->sareaPrivOffset = gDRIPriv->sarea_priv_offset;
 175
 176     i = 0;
 177     viaScreen->extensions[i++] = &driFrameTrackingExtension.base;
 178     viaScreen->extensions[i++] = &driReadDrawableExtension;
 179     if ( viaScreen->irqEnabled ) {
 180         viaScreen->extensions[i++] = &driSwapControlExtension.base;
 181         viaScreen->extensions[i++] = &driMediaStreamCounterExtension.base;
 182     }
 183
 184     viaScreen->extensions[i++] = NULL;
 185     sPriv->extensions = viaScreen->extensions;
 186
 187     return GL_TRUE;
 188 }
 189
 190 static void
 191 viaDestroyScreen(__DRIscreenPrivate *sPriv)
 192 {
 193     viaScreenPrivate *viaScreen = (viaScreenPrivate *)sPriv->private;
 194     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 195
 196     drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 197     if (gDRIPriv->agp.size)
 198         drmUnmap(viaScreen->agpLinearStart, gDRIPriv->agp.size);
 199
 200     via_free_empty_buffers(viaScreen->bufs);
 201
 202     driDestroyOptionInfo(&viaScreen->optionCache);
 203
 204     FREE(viaScreen);
 205     sPriv->private = NULL;
 206 }
 207
 208
 209 static GLboolean
 210 viaCreateBuffer(__DRIscreenPrivate *driScrnPriv,
 211                 __DRIdrawablePrivate *driDrawPriv,
 212                 const __GLcontextModes *mesaVis,
 213                 GLboolean isPixmap)
 214 {
 215     viaScreenPrivate *screen = (viaScreenPrivate *) driScrnPriv->private;
 216
 217     GLboolean swStencil = (mesaVis->stencilBits > 0 &&
 218                            mesaVis->depthBits != 24);
 219     GLboolean swAccum = mesaVis->accumRedBits > 0;
 220
 221     if (isPixmap) {
 222        /* KW: This needs work, disabled for now:
 223         */
 224 #if 0
 225         driDrawPriv->driverPrivate = (void *)
 226             _mesa_create_framebuffer(mesaVis,
 227                                      GL_FALSE,  /* software depth buffer? */
 228                                      swStencil,
 229                                      mesaVis->accumRedBits > 0,
 230                                      GL_FALSE   /* s/w alpha planes */);
 231
 232         return (driDrawPriv->driverPrivate != NULL);
 233 #endif
 234         return GL_FALSE;
 235     }
 236     else {
 237       struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
 238
 239       /* The front color, back color and depth renderbuffers are
 240        * set up later in calculate_buffer_parameters().
 241        * Only create/connect software-based buffers here.
 242        */
 243
 244 #if 000
 245       /* This code _should_ be put to use.  We have to move the
 246        * viaRenderbuffer members out of the via_context structure.
 247        * Those members should just be the renderbuffers hanging off the
 248        * gl_framebuffer object.
 249        */
 250       /* XXX check/fix the offset/pitch parameters! */
 251       {
 252          driRenderbuffer *frontRb
 253             = driNewRenderbuffer(GL_RGBA, NULL,
 254                                  screen->bytesPerPixel,
 255                                  0, screen->width, driDrawPriv);
 256          viaSetSpanFunctions(frontRb, mesaVis);
 257          _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
 258       }
 259
 260       if (mesaVis->doubleBufferMode) {
 261          driRenderbuffer *backRb
 262             = driNewRenderbuffer(GL_RGBA, NULL,
 263                                  screen->bytesPerPixel,
 264                                  0, screen->width, driDrawPriv);
 265          viaSetSpanFunctions(backRb, mesaVis);
 266          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
 267       }
 268
 269       if (mesaVis->depthBits == 16) {
 270          driRenderbuffer *depthRb
 271             = driNewRenderbuffer(GL_DEPTH_COMPONENT16, NULL,
 272                                  screen->bytesPerPixel,
 273                                  0, screen->width, driDrawPriv);
 274          viaSetSpanFunctions(depthRb, mesaVis);
 275          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 276       }
 277       else if (mesaVis->depthBits == 24) {
 278          driRenderbuffer *depthRb
 279             = driNewRenderbuffer(GL_DEPTH_COMPONENT24, NULL,
 280                                  screen->bytesPerPixel,
 281                                  0, screen->width, driDrawPriv);
 282          viaSetSpanFunctions(depthRb, mesaVis);
 283          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 284       }
 285       else if (mesaVis->depthBits == 32) {
 286          driRenderbuffer *depthRb
 287             = driNewRenderbuffer(GL_DEPTH_COMPONENT32, NULL,
 288                                  screen->bytesPerPixel,
 289                                  0, screen->width, driDrawPriv);
 290          viaSetSpanFunctions(depthRb, mesaVis);
 291          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 292       }
 293
 294       if (mesaVis->stencilBits > 0 && !swStencil) {
 295          driRenderbuffer *stencilRb
 296             = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT, NULL,
 297                                  screen->bytesPerPixel,
 298                                  0, screen->width, driDrawPriv);
 299          viaSetSpanFunctions(stencilRb, mesaVis);
 300          _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base);
 301       }
 302 #endif
 303
 304       _mesa_add_soft_renderbuffers(fb,
 305                                    GL_FALSE, /* color */
 306                                    GL_FALSE, /* depth */
 307                                    swStencil,
 308                                    swAccum,
 309                                    GL_FALSE, /* alpha */
 310                                    GL_FALSE /* aux */);
 311       driDrawPriv->driverPrivate = (void *) fb;
 312
 313       return (driDrawPriv->driverPrivate != NULL);
 314    }
 315 }
 316
 317
 318 static void
 319 viaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 320 {
 321    _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
 322 }
 323
 324
 325
 326 static struct __DriverAPIRec viaAPI = {
 327    .DestroyScreen   = viaDestroyScreen,
 328    .CreateContext   = viaCreateContext,
 329    .DestroyContext  = viaDestroyContext,
 330    .CreateBuffer    = viaCreateBuffer,
 331    .DestroyBuffer   = viaDestroyBuffer,
 332    .SwapBuffers     = viaSwapBuffers,
 333    .MakeCurrent     = viaMakeCurrent,
 334    .UnbindContext   = viaUnbindContext,
 335    .GetSwapInfo     = getSwapInfo,
 336    .GetMSC          = driGetMSC32,
 337    .GetDrawableMSC  = driDrawableGetMSC32,
 338    .WaitForMSC      = driWaitForMSC32,
 339    .WaitForSBC      = NULL,
 340    .SwapBuffersMSC  = NULL
 341 };
 342
 343
 344 static __GLcontextModes *
 345 viaFillInModes( unsigned pixel_bits, GLboolean have_back_buffer )
 346 {
 347     __GLcontextModes * modes;
 348     __GLcontextModes * m;
 349     unsigned num_modes;
 350     const unsigned back_buffer_factor = (have_back_buffer) ? 2 : 1;
 351     GLenum fb_format;
 352     GLenum fb_type;
 353
 354     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 355      * enough to add support.  Basically, if a context is created with an
 356      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 357      * will never be used.
 358      */
 359     static const GLenum back_buffer_modes[] = {
 360         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 361     };
 362
 363     /* The 32-bit depth-buffer mode isn't supported yet, so don't actually
 364      * enable it.
 365      */
 366     static const u_int8_t depth_bits_array[4]   = { 0, 16, 24, 32 };
 367     static const u_int8_t stencil_bits_array[4] = { 0,  0,  8,  0 };
 368     const unsigned depth_buffer_factor = 3;
 369
 370
 371     num_modes = depth_buffer_factor * back_buffer_factor * 4;
 372
 373     if ( pixel_bits == 16 ) {
 374         fb_format = GL_RGB;
 375         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 376     }
 377     else {
 378         fb_format = GL_BGRA;
 379         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 380     }
 381
 382     modes = (*dri_interface->createContextModes)( num_modes, sizeof( __GLcontextModes ) );
 383     m = modes;
 384     if ( ! driFillInModes( & m, fb_format, fb_type,
 385                            depth_bits_array, stencil_bits_array,
 386                            depth_buffer_factor,
 387                            back_buffer_modes, back_buffer_factor,
 388                            GLX_TRUE_COLOR ) ) {
 389         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 390                  __func__, __LINE__ );
 391         return NULL;
 392     }
 393
 394     if ( ! driFillInModes( & m, fb_format, fb_type,
 395                            depth_bits_array, stencil_bits_array,
 396                            depth_buffer_factor,
 397                            back_buffer_modes, back_buffer_factor,
 398                            GLX_DIRECT_COLOR ) ) {
 399         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 400                  __func__, __LINE__ );
 401         return NULL;
 402     }
 403
 404     return modes;
 405 }
 406
 407
 408 /**
 409  * This is the driver specific part of the createNewScreen entry point.
 410  *
 411  * \todo maybe fold this into intelInitDriver
 412  *
 413  * \return the __GLcontextModes supported by this driver
 414  */
 415 __GLcontextModes *__driDriverInitScreen(__DRIscreenPrivate *psp)
 416 {
 417    static const __DRIversion ddx_expected = { VIA_DRIDDX_VERSION_MAJOR,
 418                                               VIA_DRIDDX_VERSION_MINOR,
 419                                               VIA_DRIDDX_VERSION_PATCH };
 420    static const __DRIversion dri_expected = { 4, 0, 0 };
 421    static const __DRIversion drm_expected = { 2, 3, 0 };
 422    static const char *driver_name = "Unichrome";
 423    VIADRIPtr dri_priv = (VIADRIPtr) psp->pDevPriv;
 424
 425    if ( ! driCheckDriDdxDrmVersions2( driver_name,
 426                                       &psp->dri_version, & dri_expected,
 427                                       &psp->ddx_version, & ddx_expected,
 428                                       &psp->drm_version, & drm_expected) )
 429       return NULL;
 430
 431    psp->DriverAPI = viaAPI;
 432
 433    /* Calling driInitExtensions here, with a NULL context pointer,
 434     * does not actually enable the extensions.  It just makes sure
 435     * that all the dispatch offsets for all the extensions that
 436     * *might* be enables are known.  This is needed because the
 437     * dispatch offsets need to be known when _mesa_context_create is
 438     * called, but we can't enable the extensions until we have a
 439     * context pointer.
 440     *
 441     * Hello chicken.  Hello egg.  How are you two today?
 442     */
 443    driInitExtensions( NULL, card_extensions, GL_FALSE );
 444
 445    if (!viaInitDriver(psp))
 446        return NULL;
 447
 448    return viaFillInModes( dri_priv->bytesPerPixel * 8, GL_TRUE );
 449
 450 }
 451
 452
 453 /**
 454  * Get information about previous buffer swaps.
 455  */
 456 static int
 457 getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo )
 458 {
 459    struct via_context *vmesa;
 460
 461    if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL)
 462         || (dPriv->driContextPriv->driverPrivate == NULL)
 463         || (sInfo == NULL) ) {
 464       return -1;
 465    }
 466
 467    vmesa = (struct via_context *) dPriv->driContextPriv->driverPrivate;
 468    sInfo->swap_count = vmesa->swap_count;
 469    sInfo->swap_ust = vmesa->swap_ust;
 470    sInfo->swap_missed_count = vmesa->swap_missed_count;
 471
 472    sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
 473        ? driCalculateSwapUsage( dPriv, 0, vmesa->swap_missed_ust )
 474        : 0.0;
 475
 476    return 0;
 477 }