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 "dri_util.h"
  28 #include "utils.h"
  29 #include "main/glheader.h"
  30 #include "main/context.h"
  31 #include "main/framebuffer.h"
  32 #include "main/renderbuffer.h"
  33 #include "main/matrix.h"
  34 #include "main/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 drmBufMapPtr via_create_empty_buffers(void)
  68 {
  69     drmBufMapPtr retval;
  70
  71     retval = (drmBufMapPtr)MALLOC(sizeof(drmBufMap));
  72     if (retval == NULL) return NULL;
  73     memset(retval, 0, sizeof(drmBufMap));
  74
  75     retval->list = (drmBufPtr)MALLOC(sizeof(drmBuf) * VIA_DMA_BUF_NR);
  76     if (retval->list == NULL) {
  77        FREE(retval);
  78        return NULL;
  79     }
  80     memset(retval->list, 0, sizeof(drmBuf) * VIA_DMA_BUF_NR);
  81     return retval;
  82 }
  83
  84 static void via_free_empty_buffers( drmBufMapPtr bufs )
  85 {
  86    if (bufs && bufs->list)
  87       FREE(bufs->list);
  88
  89    if (bufs)
  90       FREE(bufs);
  91 }
  92
  93
  94 static GLboolean
  95 viaInitDriver(__DRIscreenPrivate *sPriv)
  96 {
  97     viaScreenPrivate *viaScreen;
  98     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
  99     int i;
 100
 101     if (sPriv->devPrivSize != sizeof(VIADRIRec)) {
 102       fprintf(stderr,"\nERROR!  sizeof(VIADRIRec) does not match passed size from device driver\n");
 103       return GL_FALSE;
 104     }
 105
 106     /* Allocate the private area */
 107     viaScreen = (viaScreenPrivate *) CALLOC(sizeof(viaScreenPrivate));
 108     if (!viaScreen) {
 109         __driUtilMessage("viaInitDriver: alloc viaScreenPrivate struct failed");
 110         return GL_FALSE;
 111     }
 112
 113     /* parse information in __driConfigOptions */
 114     driParseOptionInfo (&viaScreen->optionCache,
 115                         __driConfigOptions, __driNConfigOptions);
 116
 117
 118     viaScreen->driScrnPriv = sPriv;
 119     sPriv->private = (void *)viaScreen;
 120
 121     viaScreen->deviceID = gDRIPriv->deviceID;
 122     viaScreen->width = gDRIPriv->width;
 123     viaScreen->height = gDRIPriv->height;
 124     viaScreen->mem = gDRIPriv->mem;
 125     viaScreen->bitsPerPixel = gDRIPriv->bytesPerPixel * 8;
 126     viaScreen->bytesPerPixel = gDRIPriv->bytesPerPixel;
 127     viaScreen->fbOffset = 0;
 128     viaScreen->fbSize = gDRIPriv->fbSize;
 129     viaScreen->irqEnabled = gDRIPriv->irqEnabled;
 130
 131     if (VIA_DEBUG & DEBUG_DRI) {
 132         fprintf(stderr, "deviceID = %08x\n", viaScreen->deviceID);
 133         fprintf(stderr, "width = %08x\n", viaScreen->width);
 134         fprintf(stderr, "height = %08x\n", viaScreen->height);
 135         fprintf(stderr, "cpp = %08x\n", viaScreen->cpp);
 136         fprintf(stderr, "fbOffset = %08x\n", viaScreen->fbOffset);
 137     }
 138
 139     viaScreen->bufs = via_create_empty_buffers();
 140     if (viaScreen->bufs == NULL) {
 141         __driUtilMessage("viaInitDriver: via_create_empty_buffers() failed");
 142         FREE(viaScreen);
 143         return GL_FALSE;
 144     }
 145
 146     if (drmMap(sPriv->fd,
 147                gDRIPriv->regs.handle,
 148                gDRIPriv->regs.size,
 149                &viaScreen->reg) != 0) {
 150         FREE(viaScreen);
 151         sPriv->private = NULL;
 152         __driUtilMessage("viaInitDriver: drmMap regs failed");
 153         return GL_FALSE;
 154     }
 155
 156     if (gDRIPriv->agp.size) {
 157         if (drmMap(sPriv->fd,
 158                    gDRIPriv->agp.handle,
 159                    gDRIPriv->agp.size,
 160                    (drmAddress *)&viaScreen->agpLinearStart) != 0) {
 161             drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 162             FREE(viaScreen);
 163             sPriv->private = NULL;
 164             __driUtilMessage("viaInitDriver: drmMap agp failed");
 165             return GL_FALSE;
 166         }
 167
 168         viaScreen->agpBase = drmAgpBase(sPriv->fd);
 169     } else
 170         viaScreen->agpLinearStart = 0;
 171
 172     viaScreen->sareaPrivOffset = gDRIPriv->sarea_priv_offset;
 173
 174     i = 0;
 175     viaScreen->extensions[i++] = &driFrameTrackingExtension.base;
 176     viaScreen->extensions[i++] = &driReadDrawableExtension;
 177     if ( viaScreen->irqEnabled ) {
 178         viaScreen->extensions[i++] = &driSwapControlExtension.base;
 179         viaScreen->extensions[i++] = &driMediaStreamCounterExtension.base;
 180     }
 181
 182     viaScreen->extensions[i++] = NULL;
 183     sPriv->extensions = viaScreen->extensions;
 184
 185     return GL_TRUE;
 186 }
 187
 188 static void
 189 viaDestroyScreen(__DRIscreenPrivate *sPriv)
 190 {
 191     viaScreenPrivate *viaScreen = (viaScreenPrivate *)sPriv->private;
 192     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 193
 194     drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 195     if (gDRIPriv->agp.size)
 196         drmUnmap(viaScreen->agpLinearStart, gDRIPriv->agp.size);
 197
 198     via_free_empty_buffers(viaScreen->bufs);
 199
 200     driDestroyOptionInfo(&viaScreen->optionCache);
 201
 202     FREE(viaScreen);
 203     sPriv->private = NULL;
 204 }
 205
 206
 207 static GLboolean
 208 viaCreateBuffer(__DRIscreenPrivate *driScrnPriv,
 209                 __DRIdrawablePrivate *driDrawPriv,
 210                 const __GLcontextModes *mesaVis,
 211                 GLboolean isPixmap)
 212 {
 213     viaScreenPrivate *screen = (viaScreenPrivate *) driScrnPriv->private;
 214
 215     GLboolean swStencil = (mesaVis->stencilBits > 0 &&
 216                            mesaVis->depthBits != 24);
 217     GLboolean swAccum = mesaVis->accumRedBits > 0;
 218
 219     if (isPixmap) {
 220        /* KW: This needs work, disabled for now:
 221         */
 222 #if 0
 223         driDrawPriv->driverPrivate = (void *)
 224             _mesa_create_framebuffer(mesaVis,
 225                                      GL_FALSE,  /* software depth buffer? */
 226                                      swStencil,
 227                                      mesaVis->accumRedBits > 0,
 228                                      GL_FALSE   /* s/w alpha planes */);
 229
 230         return (driDrawPriv->driverPrivate != NULL);
 231 #endif
 232         return GL_FALSE;
 233     }
 234     else {
 235       struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
 236
 237       /* The front color, back color and depth renderbuffers are
 238        * set up later in calculate_buffer_parameters().
 239        * Only create/connect software-based buffers here.
 240        */
 241
 242 #if 000
 243       /* This code _should_ be put to use.  We have to move the
 244        * viaRenderbuffer members out of the via_context structure.
 245        * Those members should just be the renderbuffers hanging off the
 246        * gl_framebuffer object.
 247        */
 248       /* XXX check/fix the offset/pitch parameters! */
 249       {
 250          driRenderbuffer *frontRb
 251             = driNewRenderbuffer(GL_RGBA, NULL,
 252                                  screen->bytesPerPixel,
 253                                  0, screen->width, driDrawPriv);
 254          viaSetSpanFunctions(frontRb, mesaVis);
 255          _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
 256       }
 257
 258       if (mesaVis->doubleBufferMode) {
 259          driRenderbuffer *backRb
 260             = driNewRenderbuffer(GL_RGBA, NULL,
 261                                  screen->bytesPerPixel,
 262                                  0, screen->width, driDrawPriv);
 263          viaSetSpanFunctions(backRb, mesaVis);
 264          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
 265       }
 266
 267       if (mesaVis->depthBits == 16) {
 268          driRenderbuffer *depthRb
 269             = driNewRenderbuffer(GL_DEPTH_COMPONENT16, NULL,
 270                                  screen->bytesPerPixel,
 271                                  0, screen->width, driDrawPriv);
 272          viaSetSpanFunctions(depthRb, mesaVis);
 273          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 274       }
 275       else if (mesaVis->depthBits == 24) {
 276          driRenderbuffer *depthRb
 277             = driNewRenderbuffer(GL_DEPTH_COMPONENT24, NULL,
 278                                  screen->bytesPerPixel,
 279                                  0, screen->width, driDrawPriv);
 280          viaSetSpanFunctions(depthRb, mesaVis);
 281          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 282       }
 283       else if (mesaVis->depthBits == 32) {
 284          driRenderbuffer *depthRb
 285             = driNewRenderbuffer(GL_DEPTH_COMPONENT32, NULL,
 286                                  screen->bytesPerPixel,
 287                                  0, screen->width, driDrawPriv);
 288          viaSetSpanFunctions(depthRb, mesaVis);
 289          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 290       }
 291
 292       if (mesaVis->stencilBits > 0 && !swStencil) {
 293          driRenderbuffer *stencilRb
 294             = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT, NULL,
 295                                  screen->bytesPerPixel,
 296                                  0, screen->width, driDrawPriv);
 297          viaSetSpanFunctions(stencilRb, mesaVis);
 298          _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base);
 299       }
 300 #endif
 301
 302       _mesa_add_soft_renderbuffers(fb,
 303                                    GL_FALSE, /* color */
 304                                    GL_FALSE, /* depth */
 305                                    swStencil,
 306                                    swAccum,
 307                                    GL_FALSE, /* alpha */
 308                                    GL_FALSE /* aux */);
 309       driDrawPriv->driverPrivate = (void *) fb;
 310
 311       return (driDrawPriv->driverPrivate != NULL);
 312    }
 313 }
 314
 315
 316 static void
 317 viaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 318 {
 319    _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
 320 }
 321
 322 static const __DRIconfig **
 323 viaFillInModes( __DRIscreenPrivate *psp,
 324                 unsigned pixel_bits, GLboolean have_back_buffer )
 325 {
 326     __DRIconfig **configs;
 327     const unsigned back_buffer_factor = (have_back_buffer) ? 2 : 1;
 328     GLenum fb_format;
 329     GLenum fb_type;
 330
 331     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 332      * enough to add support.  Basically, if a context is created with an
 333      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 334      * will never be used.
 335      */
 336     static const GLenum back_buffer_modes[] = {
 337         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 338     };
 339
 340     /* The 32-bit depth-buffer mode isn't supported yet, so don't actually
 341      * enable it.
 342      */
 343     static const uint8_t depth_bits_array[4]   = { 0, 16, 24, 32 };
 344     static const uint8_t stencil_bits_array[4] = { 0,  0,  8,  0 };
 345     uint8_t msaa_samples_array[1] = { 0 };
 346     const unsigned depth_buffer_factor = 3;
 347
 348     if ( pixel_bits == 16 ) {
 349         fb_format = GL_RGB;
 350         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 351     }
 352     else {
 353         fb_format = GL_BGRA;
 354         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 355     }
 356
 357     configs = driCreateConfigs(fb_format, fb_type,
 358                                depth_bits_array, stencil_bits_array,
 359                                depth_buffer_factor, back_buffer_modes,
 360                                back_buffer_factor,
 361                                msaa_samples_array, 1);
 362     if (configs == NULL) {
 363         fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
 364                 __LINE__);
 365         return NULL;
 366     }
 367
 368     return (const __DRIconfig **) configs;
 369 }
 370
 371
 372 /**
 373  * This is the driver specific part of the createNewScreen entry point.
 374  *
 375  * \todo maybe fold this into intelInitDriver
 376  *
 377  * \return the __GLcontextModes supported by this driver
 378  */
 379 static const __DRIconfig **
 380 viaInitScreen(__DRIscreenPrivate *psp)
 381 {
 382    static const __DRIversion ddx_expected = { VIA_DRIDDX_VERSION_MAJOR,
 383                                               VIA_DRIDDX_VERSION_MINOR,
 384                                               VIA_DRIDDX_VERSION_PATCH };
 385    static const __DRIversion dri_expected = { 4, 0, 0 };
 386    static const __DRIversion drm_expected = { 2, 3, 0 };
 387    static const char *driver_name = "Unichrome";
 388    VIADRIPtr dri_priv = (VIADRIPtr) psp->pDevPriv;
 389
 390    if ( ! driCheckDriDdxDrmVersions2( driver_name,
 391                                       &psp->dri_version, & dri_expected,
 392                                       &psp->ddx_version, & ddx_expected,
 393                                       &psp->drm_version, & drm_expected) )
 394       return NULL;
 395
 396    /* Calling driInitExtensions here, with a NULL context pointer,
 397     * does not actually enable the extensions.  It just makes sure
 398     * that all the dispatch offsets for all the extensions that
 399     * *might* be enables are known.  This is needed because the
 400     * dispatch offsets need to be known when _mesa_context_create is
 401     * called, but we can't enable the extensions until we have a
 402     * context pointer.
 403     *
 404     * Hello chicken.  Hello egg.  How are you two today?
 405     */
 406    driInitExtensions( NULL, card_extensions, GL_FALSE );
 407
 408    if (!viaInitDriver(psp))
 409        return NULL;
 410
 411    return viaFillInModes( psp, dri_priv->bytesPerPixel * 8, GL_TRUE );
 412
 413 }
 414
 415
 416 /**
 417  * Get information about previous buffer swaps.
 418  */
 419 static int
 420 getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo )
 421 {
 422    struct via_context *vmesa;
 423
 424    if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL)
 425         || (dPriv->driContextPriv->driverPrivate == NULL)
 426         || (sInfo == NULL) ) {
 427       return -1;
 428    }
 429
 430    vmesa = (struct via_context *) dPriv->driContextPriv->driverPrivate;
 431    sInfo->swap_count = vmesa->swap_count;
 432    sInfo->swap_ust = vmesa->swap_ust;
 433    sInfo->swap_missed_count = vmesa->swap_missed_count;
 434
 435    sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
 436        ? driCalculateSwapUsage( dPriv, 0, vmesa->swap_missed_ust )
 437        : 0.0;
 438
 439    return 0;
 440 }
 441
 442 const struct __DriverAPIRec driDriverAPI = {
 443    .InitScreen      = viaInitScreen,
 444    .DestroyScreen   = viaDestroyScreen,
 445    .CreateContext   = viaCreateContext,
 446    .DestroyContext  = viaDestroyContext,
 447    .CreateBuffer    = viaCreateBuffer,
 448    .DestroyBuffer   = viaDestroyBuffer,
 449    .SwapBuffers     = viaSwapBuffers,
 450    .MakeCurrent     = viaMakeCurrent,
 451    .UnbindContext   = viaUnbindContext,
 452    .GetSwapInfo     = getSwapInfo,
 453    .GetDrawableMSC  = driDrawableGetMSC32,
 454    .WaitForMSC      = driWaitForMSC32,
 455    .WaitForSBC      = NULL,
 456    .SwapBuffersMSC  = NULL
 457 };