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 static drmBufMapPtr via_create_empty_buffers(void)
  66 {
  67     drmBufMapPtr retval;
  68
  69     retval = (drmBufMapPtr)MALLOC(sizeof(drmBufMap));
  70     if (retval == NULL) return NULL;
  71     memset(retval, 0, sizeof(drmBufMap));
  72
  73     retval->list = (drmBufPtr)MALLOC(sizeof(drmBuf) * VIA_DMA_BUF_NR);
  74     if (retval->list == NULL) {
  75        FREE(retval);
  76        return NULL;
  77     }
  78     memset(retval->list, 0, sizeof(drmBuf) * VIA_DMA_BUF_NR);
  79     return retval;
  80 }
  81
  82 static void via_free_empty_buffers( drmBufMapPtr bufs )
  83 {
  84    if (bufs && bufs->list)
  85       FREE(bufs->list);
  86
  87    if (bufs)
  88       FREE(bufs);
  89 }
  90
  91
  92 static GLboolean
  93 viaInitDriver(__DRIscreenPrivate *sPriv)
  94 {
  95     viaScreenPrivate *viaScreen;
  96     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
  97     int i;
  98
  99     if (sPriv->devPrivSize != sizeof(VIADRIRec)) {
 100       fprintf(stderr,"\nERROR!  sizeof(VIADRIRec) does not match passed size from device driver\n");
 101       return GL_FALSE;
 102     }
 103
 104     /* Allocate the private area */
 105     viaScreen = (viaScreenPrivate *) CALLOC(sizeof(viaScreenPrivate));
 106     if (!viaScreen) {
 107         __driUtilMessage("viaInitDriver: alloc viaScreenPrivate struct failed");
 108         return GL_FALSE;
 109     }
 110
 111     /* parse information in __driConfigOptions */
 112     driParseOptionInfo (&viaScreen->optionCache,
 113                         __driConfigOptions, __driNConfigOptions);
 114
 115
 116     viaScreen->driScrnPriv = sPriv;
 117     sPriv->private = (void *)viaScreen;
 118
 119     viaScreen->deviceID = gDRIPriv->deviceID;
 120     viaScreen->width = gDRIPriv->width;
 121     viaScreen->height = gDRIPriv->height;
 122     viaScreen->mem = gDRIPriv->mem;
 123     viaScreen->bitsPerPixel = gDRIPriv->bytesPerPixel * 8;
 124     viaScreen->bytesPerPixel = gDRIPriv->bytesPerPixel;
 125     viaScreen->fbOffset = 0;
 126     viaScreen->fbSize = gDRIPriv->fbSize;
 127     viaScreen->irqEnabled = gDRIPriv->irqEnabled;
 128
 129     if (VIA_DEBUG & DEBUG_DRI) {
 130         fprintf(stderr, "deviceID = %08x\n", viaScreen->deviceID);
 131         fprintf(stderr, "width = %08x\n", viaScreen->width);
 132         fprintf(stderr, "height = %08x\n", viaScreen->height);
 133         fprintf(stderr, "cpp = %08x\n", viaScreen->cpp);
 134         fprintf(stderr, "fbOffset = %08x\n", viaScreen->fbOffset);
 135     }
 136
 137     viaScreen->bufs = via_create_empty_buffers();
 138     if (viaScreen->bufs == NULL) {
 139         __driUtilMessage("viaInitDriver: via_create_empty_buffers() failed");
 140         FREE(viaScreen);
 141         return GL_FALSE;
 142     }
 143
 144     if (drmMap(sPriv->fd,
 145                gDRIPriv->regs.handle,
 146                gDRIPriv->regs.size,
 147                &viaScreen->reg) != 0) {
 148         FREE(viaScreen);
 149         sPriv->private = NULL;
 150         __driUtilMessage("viaInitDriver: drmMap regs failed");
 151         return GL_FALSE;
 152     }
 153
 154     if (gDRIPriv->agp.size) {
 155         if (drmMap(sPriv->fd,
 156                    gDRIPriv->agp.handle,
 157                    gDRIPriv->agp.size,
 158                    (drmAddress *)&viaScreen->agpLinearStart) != 0) {
 159             drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 160             FREE(viaScreen);
 161             sPriv->private = NULL;
 162             __driUtilMessage("viaInitDriver: drmMap agp failed");
 163             return GL_FALSE;
 164         }
 165
 166         viaScreen->agpBase = drmAgpBase(sPriv->fd);
 167     } else
 168         viaScreen->agpLinearStart = 0;
 169
 170     viaScreen->sareaPrivOffset = gDRIPriv->sarea_priv_offset;
 171
 172     i = 0;
 173     viaScreen->extensions[i++] = &driFrameTrackingExtension.base;
 174     viaScreen->extensions[i++] = &driReadDrawableExtension;
 175     if ( viaScreen->irqEnabled ) {
 176         viaScreen->extensions[i++] = &driSwapControlExtension.base;
 177         viaScreen->extensions[i++] = &driMediaStreamCounterExtension.base;
 178     }
 179
 180     viaScreen->extensions[i++] = NULL;
 181     sPriv->extensions = viaScreen->extensions;
 182
 183     return GL_TRUE;
 184 }
 185
 186 static void
 187 viaDestroyScreen(__DRIscreenPrivate *sPriv)
 188 {
 189     viaScreenPrivate *viaScreen = (viaScreenPrivate *)sPriv->private;
 190     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 191
 192     drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 193     if (gDRIPriv->agp.size)
 194         drmUnmap(viaScreen->agpLinearStart, gDRIPriv->agp.size);
 195
 196     via_free_empty_buffers(viaScreen->bufs);
 197
 198     driDestroyOptionInfo(&viaScreen->optionCache);
 199
 200     FREE(viaScreen);
 201     sPriv->private = NULL;
 202 }
 203
 204
 205 static GLboolean
 206 viaCreateBuffer(__DRIscreenPrivate *driScrnPriv,
 207                 __DRIdrawablePrivate *driDrawPriv,
 208                 const __GLcontextModes *mesaVis,
 209                 GLboolean isPixmap)
 210 {
 211     viaScreenPrivate *screen = (viaScreenPrivate *) driScrnPriv->private;
 212
 213     GLboolean swStencil = (mesaVis->stencilBits > 0 &&
 214                            mesaVis->depthBits != 24);
 215     GLboolean swAccum = mesaVis->accumRedBits > 0;
 216
 217     if (isPixmap) {
 218        /* KW: This needs work, disabled for now:
 219         */
 220 #if 0
 221         driDrawPriv->driverPrivate = (void *)
 222             _mesa_create_framebuffer(mesaVis,
 223                                      GL_FALSE,  /* software depth buffer? */
 224                                      swStencil,
 225                                      mesaVis->accumRedBits > 0,
 226                                      GL_FALSE   /* s/w alpha planes */);
 227
 228         return (driDrawPriv->driverPrivate != NULL);
 229 #endif
 230         return GL_FALSE;
 231     }
 232     else {
 233       struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
 234
 235       /* The front color, back color and depth renderbuffers are
 236        * set up later in calculate_buffer_parameters().
 237        * Only create/connect software-based buffers here.
 238        */
 239
 240 #if 000
 241       /* This code _should_ be put to use.  We have to move the
 242        * viaRenderbuffer members out of the via_context structure.
 243        * Those members should just be the renderbuffers hanging off the
 244        * gl_framebuffer object.
 245        */
 246       /* XXX check/fix the offset/pitch parameters! */
 247       {
 248          driRenderbuffer *frontRb
 249             = driNewRenderbuffer(GL_RGBA, NULL,
 250                                  screen->bytesPerPixel,
 251                                  0, screen->width, driDrawPriv);
 252          viaSetSpanFunctions(frontRb, mesaVis);
 253          _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
 254       }
 255
 256       if (mesaVis->doubleBufferMode) {
 257          driRenderbuffer *backRb
 258             = driNewRenderbuffer(GL_RGBA, NULL,
 259                                  screen->bytesPerPixel,
 260                                  0, screen->width, driDrawPriv);
 261          viaSetSpanFunctions(backRb, mesaVis);
 262          _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
 263       }
 264
 265       if (mesaVis->depthBits == 16) {
 266          driRenderbuffer *depthRb
 267             = driNewRenderbuffer(GL_DEPTH_COMPONENT16, NULL,
 268                                  screen->bytesPerPixel,
 269                                  0, screen->width, driDrawPriv);
 270          viaSetSpanFunctions(depthRb, mesaVis);
 271          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 272       }
 273       else if (mesaVis->depthBits == 24) {
 274          driRenderbuffer *depthRb
 275             = driNewRenderbuffer(GL_DEPTH_COMPONENT24, NULL,
 276                                  screen->bytesPerPixel,
 277                                  0, screen->width, driDrawPriv);
 278          viaSetSpanFunctions(depthRb, mesaVis);
 279          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 280       }
 281       else if (mesaVis->depthBits == 32) {
 282          driRenderbuffer *depthRb
 283             = driNewRenderbuffer(GL_DEPTH_COMPONENT32, NULL,
 284                                  screen->bytesPerPixel,
 285                                  0, screen->width, driDrawPriv);
 286          viaSetSpanFunctions(depthRb, mesaVis);
 287          _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
 288       }
 289
 290       if (mesaVis->stencilBits > 0 && !swStencil) {
 291          driRenderbuffer *stencilRb
 292             = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT, NULL,
 293                                  screen->bytesPerPixel,
 294                                  0, screen->width, driDrawPriv);
 295          viaSetSpanFunctions(stencilRb, mesaVis);
 296          _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base);
 297       }
 298 #endif
 299
 300       _mesa_add_soft_renderbuffers(fb,
 301                                    GL_FALSE, /* color */
 302                                    GL_FALSE, /* depth */
 303                                    swStencil,
 304                                    swAccum,
 305                                    GL_FALSE, /* alpha */
 306                                    GL_FALSE /* aux */);
 307       driDrawPriv->driverPrivate = (void *) fb;
 308
 309       return (driDrawPriv->driverPrivate != NULL);
 310    }
 311 }
 312
 313
 314 static void
 315 viaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 316 {
 317    _mesa_reference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
 318 }
 319
 320 static const __DRIconfig **
 321 viaFillInModes( __DRIscreenPrivate *psp,
 322                 unsigned pixel_bits, GLboolean have_back_buffer )
 323 {
 324     __DRIconfig **configs;
 325     const unsigned back_buffer_factor = (have_back_buffer) ? 2 : 1;
 326     GLenum fb_format;
 327     GLenum fb_type;
 328
 329     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 330      * enough to add support.  Basically, if a context is created with an
 331      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 332      * will never be used.
 333      */
 334     static const GLenum back_buffer_modes[] = {
 335         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 336     };
 337
 338     /* The 32-bit depth-buffer mode isn't supported yet, so don't actually
 339      * enable it.
 340      */
 341     static const uint8_t depth_bits_array[4]   = { 0, 16, 24, 32 };
 342     static const uint8_t stencil_bits_array[4] = { 0,  0,  8,  0 };
 343     uint8_t msaa_samples_array[1] = { 0 };
 344     const unsigned depth_buffer_factor = 3;
 345
 346     if ( pixel_bits == 16 ) {
 347         fb_format = GL_RGB;
 348         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 349     }
 350     else {
 351         fb_format = GL_BGRA;
 352         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 353     }
 354
 355     configs = driCreateConfigs(fb_format, fb_type,
 356                                depth_bits_array, stencil_bits_array,
 357                                depth_buffer_factor, back_buffer_modes,
 358                                back_buffer_factor,
 359                                msaa_samples_array, 1);
 360     if (configs == NULL) {
 361         fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
 362                 __LINE__);
 363         return NULL;
 364     }
 365
 366     return (const __DRIconfig **) configs;
 367 }
 368
 369
 370 /**
 371  * This is the driver specific part of the createNewScreen entry point.
 372  *
 373  * \todo maybe fold this into intelInitDriver
 374  *
 375  * \return the __GLcontextModes supported by this driver
 376  */
 377 static const __DRIconfig **
 378 viaInitScreen(__DRIscreenPrivate *psp)
 379 {
 380    static const __DRIversion ddx_expected = { VIA_DRIDDX_VERSION_MAJOR,
 381                                               VIA_DRIDDX_VERSION_MINOR,
 382                                               VIA_DRIDDX_VERSION_PATCH };
 383    static const __DRIversion dri_expected = { 4, 0, 0 };
 384    static const __DRIversion drm_expected = { 2, 3, 0 };
 385    static const char *driver_name = "Unichrome";
 386    VIADRIPtr dri_priv = (VIADRIPtr) psp->pDevPriv;
 387
 388    if ( ! driCheckDriDdxDrmVersions2( driver_name,
 389                                       &psp->dri_version, & dri_expected,
 390                                       &psp->ddx_version, & ddx_expected,
 391                                       &psp->drm_version, & drm_expected) )
 392       return NULL;
 393
 394    if (!viaInitDriver(psp))
 395        return NULL;
 396
 397    return viaFillInModes( psp, dri_priv->bytesPerPixel * 8, GL_TRUE );
 398
 399 }
 400
 401
 402 /**
 403  * Get information about previous buffer swaps.
 404  */
 405 static int
 406 getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo )
 407 {
 408    struct via_context *vmesa;
 409
 410    if ( (dPriv == NULL) || (dPriv->driContextPriv == NULL)
 411         || (dPriv->driContextPriv->driverPrivate == NULL)
 412         || (sInfo == NULL) ) {
 413       return -1;
 414    }
 415
 416    vmesa = (struct via_context *) dPriv->driContextPriv->driverPrivate;
 417    sInfo->swap_count = vmesa->swap_count;
 418    sInfo->swap_ust = vmesa->swap_ust;
 419    sInfo->swap_missed_count = vmesa->swap_missed_count;
 420
 421    sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
 422        ? driCalculateSwapUsage( dPriv, 0, vmesa->swap_missed_ust )
 423        : 0.0;
 424
 425    return 0;
 426 }
 427
 428 const struct __DriverAPIRec driDriverAPI = {
 429    .InitScreen      = viaInitScreen,
 430    .DestroyScreen   = viaDestroyScreen,
 431    .CreateContext   = viaCreateContext,
 432    .DestroyContext  = viaDestroyContext,
 433    .CreateBuffer    = viaCreateBuffer,
 434    .DestroyBuffer   = viaDestroyBuffer,
 435    .SwapBuffers     = viaSwapBuffers,
 436    .MakeCurrent     = viaMakeCurrent,
 437    .UnbindContext   = viaUnbindContext,
 438    .GetSwapInfo     = getSwapInfo,
 439    .GetDrawableMSC  = driDrawableGetMSC32,
 440    .WaitForMSC      = driWaitForMSC32,
 441    .WaitForSBC      = NULL,
 442    .SwapBuffersMSC  = NULL
 443 };