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/simple_list.h"
  34 #include "vblank.h"
  35
  36 #include "via_state.h"
  37 #include "via_tex.h"
  38 #include "via_span.h"
  39 #include "via_screen.h"
  40 #include "via_dri.h"
  41
  42 #include "GL/internal/dri_interface.h"
  43 #include "drirenderbuffer.h"
  44
  45 #include "xmlpool.h"
  46
  47 PUBLIC const char __driConfigOptions[] =
  48 DRI_CONF_BEGIN
  49     DRI_CONF_SECTION_PERFORMANCE
  50         DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  51     DRI_CONF_SECTION_END
  52     DRI_CONF_SECTION_QUALITY
  53         DRI_CONF_EXCESS_MIPMAP(false)
  54     DRI_CONF_SECTION_END
  55     DRI_CONF_SECTION_DEBUG
  56         DRI_CONF_NO_RAST(false)
  57     DRI_CONF_SECTION_END
  58 DRI_CONF_END;
  59 static const GLuint __driNConfigOptions = 3;
  60
  61 static drmBufMapPtr via_create_empty_buffers(void)
  62 {
  63     drmBufMapPtr retval;
  64
  65     retval = (drmBufMapPtr)MALLOC(sizeof(drmBufMap));
  66     if (retval == NULL) return NULL;
  67     memset(retval, 0, sizeof(drmBufMap));
  68
  69     retval->list = (drmBufPtr)MALLOC(sizeof(drmBuf) * VIA_DMA_BUF_NR);
  70     if (retval->list == NULL) {
  71        FREE(retval);
  72        return NULL;
  73     }
  74     memset(retval->list, 0, sizeof(drmBuf) * VIA_DMA_BUF_NR);
  75     return retval;
  76 }
  77
  78 static void via_free_empty_buffers( drmBufMapPtr bufs )
  79 {
  80    if (bufs && bufs->list)
  81       FREE(bufs->list);
  82
  83    if (bufs)
  84       FREE(bufs);
  85 }
  86
  87
  88 static GLboolean
  89 viaInitDriver(__DRIscreen *sPriv)
  90 {
  91     viaScreenPrivate *viaScreen;
  92     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
  93     int i;
  94
  95     if (sPriv->devPrivSize != sizeof(VIADRIRec)) {
  96       fprintf(stderr,"\nERROR!  sizeof(VIADRIRec) does not match passed size from device driver\n");
  97       return GL_FALSE;
  98     }
  99
 100     /* Allocate the private area */
 101     viaScreen = (viaScreenPrivate *) CALLOC(sizeof(viaScreenPrivate));
 102     if (!viaScreen) {
 103         __driUtilMessage("viaInitDriver: alloc viaScreenPrivate struct failed");
 104         return GL_FALSE;
 105     }
 106
 107     /* parse information in __driConfigOptions */
 108     driParseOptionInfo (&viaScreen->optionCache,
 109                         __driConfigOptions, __driNConfigOptions);
 110
 111
 112     viaScreen->driScrnPriv = sPriv;
 113     sPriv->private = (void *)viaScreen;
 114
 115     viaScreen->deviceID = gDRIPriv->deviceID;
 116     viaScreen->width = gDRIPriv->width;
 117     viaScreen->height = gDRIPriv->height;
 118     viaScreen->mem = gDRIPriv->mem;
 119     viaScreen->bitsPerPixel = gDRIPriv->bytesPerPixel * 8;
 120     viaScreen->bytesPerPixel = gDRIPriv->bytesPerPixel;
 121     viaScreen->fbOffset = 0;
 122     viaScreen->fbSize = gDRIPriv->fbSize;
 123     viaScreen->irqEnabled = gDRIPriv->irqEnabled;
 124
 125     if (VIA_DEBUG & DEBUG_DRI) {
 126         fprintf(stderr, "deviceID = %08x\n", viaScreen->deviceID);
 127         fprintf(stderr, "width = %08x\n", viaScreen->width);
 128         fprintf(stderr, "height = %08x\n", viaScreen->height);
 129         fprintf(stderr, "cpp = %08x\n", viaScreen->cpp);
 130         fprintf(stderr, "fbOffset = %08x\n", viaScreen->fbOffset);
 131     }
 132
 133     viaScreen->bufs = via_create_empty_buffers();
 134     if (viaScreen->bufs == NULL) {
 135         __driUtilMessage("viaInitDriver: via_create_empty_buffers() failed");
 136         FREE(viaScreen);
 137         return GL_FALSE;
 138     }
 139
 140     if (drmMap(sPriv->fd,
 141                gDRIPriv->regs.handle,
 142                gDRIPriv->regs.size,
 143                &viaScreen->reg) != 0) {
 144         FREE(viaScreen);
 145         sPriv->private = NULL;
 146         __driUtilMessage("viaInitDriver: drmMap regs failed");
 147         return GL_FALSE;
 148     }
 149
 150     if (gDRIPriv->agp.size) {
 151         if (drmMap(sPriv->fd,
 152                    gDRIPriv->agp.handle,
 153                    gDRIPriv->agp.size,
 154                    (drmAddress *)&viaScreen->agpLinearStart) != 0) {
 155             drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 156             FREE(viaScreen);
 157             sPriv->private = NULL;
 158             __driUtilMessage("viaInitDriver: drmMap agp failed");
 159             return GL_FALSE;
 160         }
 161
 162         viaScreen->agpBase = drmAgpBase(sPriv->fd);
 163     } else
 164         viaScreen->agpLinearStart = 0;
 165
 166     viaScreen->sareaPrivOffset = gDRIPriv->sarea_priv_offset;
 167
 168     i = 0;
 169     viaScreen->extensions[i++] = &driReadDrawableExtension;
 170     if ( viaScreen->irqEnabled ) {
 171         viaScreen->extensions[i++] = &driSwapControlExtension.base;
 172         viaScreen->extensions[i++] = &driMediaStreamCounterExtension.base;
 173     }
 174
 175     viaScreen->extensions[i++] = NULL;
 176     sPriv->extensions = viaScreen->extensions;
 177
 178     return GL_TRUE;
 179 }
 180
 181 static void
 182 viaDestroyScreen(__DRIscreen *sPriv)
 183 {
 184     viaScreenPrivate *viaScreen = (viaScreenPrivate *)sPriv->private;
 185     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 186
 187     drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 188     if (gDRIPriv->agp.size)
 189         drmUnmap(viaScreen->agpLinearStart, gDRIPriv->agp.size);
 190
 191     via_free_empty_buffers(viaScreen->bufs);
 192
 193     driDestroyOptionInfo(&viaScreen->optionCache);
 194
 195     FREE(viaScreen);
 196     sPriv->private = NULL;
 197 }
 198
 199
 200 static GLboolean
 201 viaCreateBuffer(__DRIscreen *driScrnPriv,
 202                 __DRIdrawable *driDrawPriv,
 203                 const __GLcontextModes *mesaVis,
 204                 GLboolean isPixmap)
 205 {
 206 #if 0
 207     viaScreenPrivate *screen = (viaScreenPrivate *) driScrnPriv->private;
 208 #endif
 209
 210     GLboolean swStencil = (mesaVis->stencilBits > 0 &&
 211                            mesaVis->depthBits != 24);
 212     GLboolean swAccum = mesaVis->accumRedBits > 0;
 213
 214     if (isPixmap) {
 215        /* KW: This needs work, disabled for now:
 216         */
 217 #if 0
 218         driDrawPriv->driverPrivate = (void *)
 219             _mesa_create_framebuffer(mesaVis,
 220                                      GL_FALSE,  /* software depth buffer? */
 221                                      swStencil,
 222                                      mesaVis->accumRedBits > 0,
 223                                      GL_FALSE   /* s/w alpha planes */);
 224
 225         return (driDrawPriv->driverPrivate != NULL);
 226 #endif
 227         return GL_FALSE;
 228     }
 229     else {
 230       struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
 231
 232       /* The front color, back color and depth renderbuffers are
 233        * set up later in calculate_buffer_parameters().
 234        * Only create/connect software-based buffers here.
 235        */
 236
 237 #if 000
 238       /* This code _should_ be put to use.  We have to move the
 239        * viaRenderbuffer members out of the via_context structure.
 240        * Those members should just be the renderbuffers hanging off the
 241        * gl_framebuffer object.
 242        */
 243       /* XXX check/fix the offset/pitch parameters! */
 244       {
 245          driRenderbuffer *frontRb
 246             = driNewRenderbuffer(MESA_FORMAT_ARGB8888, NULL,
 247                                  screen->bytesPerPixel,
 248                                  0, screen->width, driDrawPriv);
 249          viaSetSpanFunctions(frontRb, mesaVis);
 250          _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
 251       }
 252
 253       if (mesaVis->doubleBufferMode) {
 254          driRenderbuffer *backRb
 255             = driNewRenderbuffer(MESA_FORMAT_ARGB8888, NULL,
 256                                  screen->bytesPerPixel,
 257                                  0, screen->width, driDrawPriv);
 258          viaSetSpanFunctions(backRb, mesaVis);
 259          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
 260       }
 261
 262       if (mesaVis->depthBits == 16) {
 263          driRenderbuffer *depthRb
 264             = driNewRenderbuffer(MESA_FORMAT_Z16, NULL,
 265                                  screen->bytesPerPixel,
 266                                  0, screen->width, driDrawPriv);
 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(MESA_FORMAT_Z24_S8, NULL,
 273                                  screen->bytesPerPixel,
 274                                  0, screen->width, driDrawPriv);
 275          viaSetSpanFunctions(depthRb, mesaVis);
 276          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 277       }
 278       else if (mesaVis->depthBits == 32) {
 279          driRenderbuffer *depthRb
 280             = driNewRenderbuffer(MESA_FORMAT_Z32, NULL,
 281                                  screen->bytesPerPixel,
 282                                  0, screen->width, driDrawPriv);
 283          viaSetSpanFunctions(depthRb, mesaVis);
 284          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 285       }
 286
 287       if (mesaVis->stencilBits > 0 && !swStencil) {
 288          driRenderbuffer *stencilRb
 289             = driNewRenderbuffer(MESA_FORMAT_S8, NULL,
 290                                  screen->bytesPerPixel,
 291                                  0, screen->width, driDrawPriv);
 292          viaSetSpanFunctions(stencilRb, mesaVis);
 293          _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base);
 294       }
 295 #endif
 296
 297       _mesa_add_soft_renderbuffers(fb,
 298                                    GL_FALSE, /* color */
 299                                    GL_FALSE, /* depth */
 300                                    swStencil,
 301                                    swAccum,
 302                                    GL_FALSE, /* alpha */
 303                                    GL_FALSE /* aux */);
 304       driDrawPriv->driverPrivate = (void *) fb;
 305
 306       return (driDrawPriv->driverPrivate != NULL);
 307    }
 308 }
 309
 310
 311 static void
 312 viaDestroyBuffer(__DRIdrawable *driDrawPriv)
 313 {
 314    _mesa_reference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
 315 }
 316
 317 static const __DRIconfig **
 318 viaFillInModes( __DRIscreen *psp,
 319                 unsigned pixel_bits, GLboolean have_back_buffer )
 320 {
 321     __DRIconfig **configs;
 322     const unsigned back_buffer_factor = (have_back_buffer) ? 2 : 1;
 323     GLenum fb_format;
 324     GLenum fb_type;
 325
 326     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 327      * enough to add support.  Basically, if a context is created with an
 328      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 329      * will never be used.
 330      */
 331     static const GLenum back_buffer_modes[] = {
 332         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 333     };
 334
 335     /* The 32-bit depth-buffer mode isn't supported yet, so don't actually
 336      * enable it.
 337      */
 338     static const uint8_t depth_bits_array[4]   = { 0, 16, 24, 32 };
 339     static const uint8_t stencil_bits_array[4] = { 0,  0,  8,  0 };
 340     uint8_t msaa_samples_array[1] = { 0 };
 341     const unsigned depth_buffer_factor = 3;
 342
 343     if ( pixel_bits == 16 ) {
 344         fb_format = GL_RGB;
 345         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 346     }
 347     else {
 348         fb_format = GL_BGRA;
 349         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 350     }
 351
 352     configs = driCreateConfigs(fb_format, fb_type,
 353                                depth_bits_array, stencil_bits_array,
 354                                depth_buffer_factor, back_buffer_modes,
 355                                back_buffer_factor,
 356                                msaa_samples_array, 1, GL_TRUE);
 357     if (configs == NULL) {
 358         fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
 359                 __LINE__);
 360         return NULL;
 361     }
 362
 363     return (const __DRIconfig **) configs;
 364 }
 365
 366
 367 /**
 368  * This is the driver specific part of the createNewScreen entry point.
 369  *
 370  * \todo maybe fold this into intelInitDriver
 371  *
 372  * \return the __GLcontextModes supported by this driver
 373  */
 374 static const __DRIconfig **
 375 viaInitScreen(__DRIscreen *psp)
 376 {
 377    static const __DRIversion ddx_expected = { VIA_DRIDDX_VERSION_MAJOR,
 378                                               VIA_DRIDDX_VERSION_MINOR,
 379                                               VIA_DRIDDX_VERSION_PATCH };
 380    static const __DRIversion dri_expected = { 4, 0, 0 };
 381    static const __DRIversion drm_expected = { 2, 3, 0 };
 382    static const char *driver_name = "Unichrome";
 383    VIADRIPtr dri_priv = (VIADRIPtr) psp->pDevPriv;
 384
 385    if ( ! driCheckDriDdxDrmVersions2( driver_name,
 386                                       &psp->dri_version, & dri_expected,
 387                                       &psp->ddx_version, & ddx_expected,
 388                                       &psp->drm_version, & drm_expected) )
 389       return NULL;
 390
 391    if (!viaInitDriver(psp))
 392        return NULL;
 393
 394    return viaFillInModes( psp, dri_priv->bytesPerPixel * 8, GL_TRUE );
 395
 396 }
 397
 398
 399 /**
 400  * Get information about previous buffer swaps.
 401  */
 402 static int
 403 getSwapInfo( __DRIdrawable *dPriv, __DRIswapInfo * sInfo )
 404 {
 405    struct via_context *vmesa;
 406
 407    if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL)
 408         || (dPriv->driContextPriv->driverPrivate == NULL)
 409         || (sInfo == NULL) ) {
 410       return -1;
 411    }
 412
 413    vmesa = (struct via_context *) dPriv->driContextPriv->driverPrivate;
 414    sInfo->swap_count = vmesa->swap_count;
 415    sInfo->swap_ust = vmesa->swap_ust;
 416    sInfo->swap_missed_count = vmesa->swap_missed_count;
 417
 418    sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
 419        ? driCalculateSwapUsage( dPriv, 0, vmesa->swap_missed_ust )
 420        : 0.0;
 421
 422    return 0;
 423 }
 424
 425 const struct __DriverAPIRec driDriverAPI = {
 426    .InitScreen      = viaInitScreen,
 427    .DestroyScreen   = viaDestroyScreen,
 428    .CreateContext   = viaCreateContext,
 429    .DestroyContext  = viaDestroyContext,
 430    .CreateBuffer    = viaCreateBuffer,
 431    .DestroyBuffer   = viaDestroyBuffer,
 432    .SwapBuffers     = viaSwapBuffers,
 433    .MakeCurrent     = viaMakeCurrent,
 434    .UnbindContext   = viaUnbindContext,
 435    .GetSwapInfo     = getSwapInfo,
 436    .GetDrawableMSC  = driDrawableGetMSC32,
 437    .WaitForMSC      = driWaitForMSC32,
 438    .WaitForSBC      = NULL,
 439    .SwapBuffersMSC  = NULL
 440 };
 441
 442 /* This is the table of extensions that the loader will dlsym() for. */
 443 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 444     &driCoreExtension.base,
 445     &driLegacyExtension.base,
 446     NULL
 447 };