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 "matrix.h"
  32 #include "simple_list.h"
  33
  34 #include "via_state.h"
  35 #include "via_tex.h"
  36 #include "via_span.h"
  37 #include "via_tris.h"
  38 #include "via_ioctl.h"
  39 #include "via_screen.h"
  40 #include "via_fb.h"
  41
  42 #include "via_dri.h"
  43 extern viaContextPtr current_mesa;
  44
  45 #ifdef USE_NEW_INTERFACE
  46 static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
  47 #endif /* USE_NEW_INTERFACE */
  48
  49
  50 static drmBufMapPtr via_create_empty_buffers(void)
  51 {
  52     drmBufMapPtr retval;
  53
  54     retval = (drmBufMapPtr)MALLOC(sizeof(drmBufMap));
  55     if (retval == NULL) return NULL;
  56     memset(retval, 0, sizeof(drmBufMap));
  57
  58     retval->list = (drmBufPtr)MALLOC(sizeof(drmBuf) * VIA_DMA_BUF_NR);
  59     if (retval->list == NULL) {
  60        FREE(retval);
  61        return NULL;
  62     }
  63     memset(retval->list, 0, sizeof(drmBuf) * VIA_DMA_BUF_NR);
  64     return retval;
  65 }
  66
  67 static GLboolean
  68 viaInitDriver(__DRIscreenPrivate *sPriv)
  69 {
  70     viaScreenPrivate *viaScreen;
  71     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
  72 #ifdef DEBUG
  73     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
  74 #endif
  75
  76
  77     /* Allocate the private area */
  78     viaScreen = (viaScreenPrivate *) CALLOC(sizeof(viaScreenPrivate));
  79     if (!viaScreen) {
  80         __driUtilMessage("viaInitDriver: alloc viaScreenPrivate struct failed");
  81         return GL_FALSE;
  82     }
  83
  84     viaScreen->driScrnPriv = sPriv;
  85     sPriv->private = (void *)viaScreen;
  86
  87     viaScreen->deviceID = gDRIPriv->deviceID;
  88     viaScreen->width = gDRIPriv->width;
  89     viaScreen->height = gDRIPriv->height;
  90     viaScreen->mem = gDRIPriv->mem;
  91     viaScreen->bitsPerPixel = gDRIPriv->bytesPerPixel << 3;
  92     viaScreen->bytesPerPixel = gDRIPriv->bytesPerPixel;
  93     viaScreen->fbOffset = 0;
  94     viaScreen->fbSize = gDRIPriv->fbSize;
  95 #ifdef USE_XINERAMA
  96     viaScreen->drixinerama = gDRIPriv->drixinerama;
  97 #endif
  98     /*=* John Sheng [2003.12.9] Tuxracer & VQ *=*/
  99     viaScreen->VQEnable = gDRIPriv->VQEnable;
 100 #ifdef DEBUG
 101     if (VIA_DEBUG) {
 102         fprintf(stderr, "deviceID = %08x\n", viaScreen->deviceID);
 103         fprintf(stderr, "width = %08x\n", viaScreen->width);
 104         fprintf(stderr, "height = %08x\n", viaScreen->height);
 105         fprintf(stderr, "cpp = %08x\n", viaScreen->cpp);
 106         fprintf(stderr, "fbOffset = %08x\n", viaScreen->fbOffset);
 107     }
 108 #endif
 109     /* DBG */
 110     /*
 111     if (gDRIPriv->bitsPerPixel == 15)
 112         viaScreen->fbFormat = DV_PF_555;
 113     else
 114         viaScreen->fbFormat = DV_PF_565;
 115     */
 116
 117     viaScreen->bufs = via_create_empty_buffers();
 118     if (viaScreen->bufs == NULL) {
 119         __driUtilMessage("viaInitDriver: via_create_empty_buffers() failed");
 120         FREE(viaScreen);
 121         return GL_FALSE;
 122     }
 123
 124     if (drmMap(sPriv->fd,
 125                gDRIPriv->regs.handle,
 126                gDRIPriv->regs.size,
 127                (drmAddress *)&viaScreen->reg) != 0) {
 128         FREE(viaScreen);
 129         sPriv->private = NULL;
 130         __driUtilMessage("viaInitDriver: drmMap regs failed");
 131         return GL_FALSE;
 132     }
 133
 134     if (gDRIPriv->agp.size) {
 135         if (drmMap(sPriv->fd,
 136                    gDRIPriv->agp.handle,
 137                    gDRIPriv->agp.size,
 138                    (drmAddress *)&viaScreen->agpLinearStart) != 0) {
 139             FREE(viaScreen);
 140             drmUnmap(viaScreen->reg, gDRIPriv->agp.size);
 141             sPriv->private = NULL;
 142             __driUtilMessage("viaInitDriver: drmMap agp failed");
 143             return GL_FALSE;
 144         }
 145         viaScreen->agpBase = (GLuint *)gDRIPriv->agp.handle;
 146     } else
 147         viaScreen->agpLinearStart = 0;
 148
 149     viaScreen->sareaPrivOffset = gDRIPriv->sarea_priv_offset;
 150 #ifdef DEBUG
 151     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 152 #endif
 153     return GL_TRUE;
 154 }
 155
 156 static void
 157 viaDestroyScreen(__DRIscreenPrivate *sPriv)
 158 {
 159     viaScreenPrivate *viaScreen = (viaScreenPrivate *)sPriv->private;
 160     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
 161 #ifdef DEBUG
 162     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 163 #endif
 164     drmUnmap(viaScreen->reg, gDRIPriv->regs.size);
 165     if (gDRIPriv->agp.size)
 166         drmUnmap(viaScreen->agpLinearStart, gDRIPriv->agp.size);
 167 #ifdef DEBUG
 168     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 169 #endif
 170     FREE(viaScreen);
 171     sPriv->private = NULL;
 172 }
 173
 174 static GLboolean
 175 viaCreateBuffer(__DRIscreenPrivate *driScrnPriv,
 176                 __DRIdrawablePrivate *driDrawPriv,
 177                 const __GLcontextModes *mesaVis,
 178                 GLboolean isPixmap)
 179 {
 180     viaContextPtr vmesa = current_mesa;
 181 #ifdef DEBUG
 182     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 183 #endif
 184     /*=* John Sheng [2003.7.2] for visual config & patch viewperf *=*/
 185     if (mesaVis->depthBits == 32 && vmesa->depthBits == 16) {
 186         vmesa->depthBits = mesaVis->depthBits;
 187         vmesa->depth.size *= 2;
 188         vmesa->depth.pitch *= 2;
 189         vmesa->depth.bpp *= 2;
 190         if (vmesa->depth.map)
 191             via_free_depth_buffer(vmesa);
 192         if (!via_alloc_depth_buffer(vmesa)) {
 193             via_free_depth_buffer(vmesa);
 194             return GL_FALSE;
 195         }
 196
 197         ((__GLcontextModes*)mesaVis)->depthBits = 16; /* XXX : sure you want to change read-only data? */
 198     }
 199
 200     if (isPixmap) {
 201         driDrawPriv->driverPrivate = (void *)
 202             _mesa_create_framebuffer(mesaVis,
 203                                      GL_FALSE,  /* software depth buffer? */
 204                                      mesaVis->stencilBits > 0,
 205                                      mesaVis->accumRedBits > 0,
 206                                      GL_FALSE   /* s/w alpha planes */);
 207
 208         if (vmesa) vmesa->drawType = GLX_PBUFFER_BIT;
 209 #ifdef DEBUG
 210         if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 211 #endif
 212         return (driDrawPriv->driverPrivate != NULL);
 213     }
 214     else {
 215         driDrawPriv->driverPrivate = (void *)
 216             _mesa_create_framebuffer(mesaVis,
 217                                      GL_FALSE,  /* software depth buffer? */
 218                                      mesaVis->stencilBits > 0,
 219                                      mesaVis->accumRedBits > 0,
 220                                      GL_FALSE   /* s/w alpha planes */);
 221
 222         if (vmesa) vmesa->drawType = GLX_WINDOW_BIT;
 223 #ifdef DEBUG
 224         if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 225 #endif
 226         return (driDrawPriv->driverPrivate != NULL);
 227    }
 228 }
 229
 230
 231 static void
 232 viaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
 233 {
 234 #ifdef DEBUG
 235     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 236 #endif
 237     _mesa_destroy_framebuffer((GLframebuffer *)(driDrawPriv->driverPrivate));
 238 #ifdef DEBUG
 239     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 240 #endif
 241 }
 242
 243
 244 #if 0
 245 /* Initialize the fullscreen mode.
 246  */
 247 GLboolean
 248 XMesaOpenFullScreen(__DRIcontextPrivate *driContextPriv)
 249 {
 250     viaContextPtr vmesa = (viaContextPtr)driContextPriv->driverPrivate;
 251     vmesa->doPageFlip = 1;
 252     vmesa->currentPage = 0;
 253     return GL_TRUE;
 254 }
 255
 256 /* Shut down the fullscreen mode.
 257  */
 258 GLboolean
 259 XMesaCloseFullScreen(__DRIcontextPrivate *driContextPriv)
 260 {
 261     viaContextPtr vmesa = (viaContextPtr)driContextPriv->driverPrivate;
 262
 263     if (vmesa->currentPage == 1) {
 264         viaPageFlip(vmesa);
 265         vmesa->currentPage = 0;
 266     }
 267
 268     vmesa->doPageFlip = GL_FALSE;
 269     vmesa->Setup[VIA_DESTREG_DI0] = vmesa->driScreen->front_offset;
 270     return GL_TRUE;
 271 }
 272 #endif
 273
 274
 275 static struct __DriverAPIRec viaAPI = {
 276     viaInitDriver,
 277     viaDestroyScreen,
 278     viaCreateContext,
 279     viaDestroyContext,
 280     viaCreateBuffer,
 281     viaDestroyBuffer,
 282     viaSwapBuffers,
 283     viaMakeCurrent,
 284     viaUnbindContext
 285 };
 286
 287
 288 /*
 289  * This is the bootstrap function for the driver.
 290  * The __driCreateScreen name is the symbol that libGL.so fetches.
 291  * Return:  pointer to a __DRIscreenPrivate.
 292  */
 293 #if !defined(DRI_NEW_INTERFACE_ONLY)
 294 void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
 295                         int numConfigs, __GLXvisualConfig *config)
 296 {
 297     __DRIscreenPrivate *psp;
 298     psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &viaAPI);
 299     return (void *)psp;
 300 }
 301 #endif /* !defined(DRI_NEW_INTERFACE_ONLY) */
 302
 303
 304 #ifdef USE_NEW_INTERFACE
 305 static __GLcontextModes *
 306 viaFillInModes( unsigned pixel_bits, GLboolean have_back_buffer )
 307 {
 308     __GLcontextModes * modes;
 309     __GLcontextModes * m;
 310     unsigned num_modes;
 311     const unsigned back_buffer_factor = (have_back_buffer) ? 2 : 1;
 312     GLenum fb_format;
 313     GLenum fb_type;
 314
 315     /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
 316      * enough to add support.  Basically, if a context is created with an
 317      * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
 318      * will never be used.
 319      */
 320     static const GLenum back_buffer_modes[] = {
 321         GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
 322     };
 323
 324     /* The 32-bit depth-buffer mode isn't supported yet, so don't actually
 325      * enable it.
 326      */
 327     static const u_int8_t depth_bits_array[4]   = { 0, 16, 24, 32 };
 328     static const u_int8_t stencil_bits_array[4] = { 0,  0,  8,  0 };
 329     const unsigned depth_buffer_factor = 3;
 330
 331
 332     num_modes = depth_buffer_factor * back_buffer_factor * 4;
 333
 334     if ( pixel_bits == 16 ) {
 335         fb_format = GL_RGB;
 336         fb_type = GL_UNSIGNED_SHORT_5_6_5;
 337     }
 338     else {
 339         fb_format = GL_BGR;
 340         fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 341     }
 342
 343     modes = (*create_context_modes)( num_modes, sizeof( __GLcontextModes ) );
 344     m = modes;
 345     if ( ! driFillInModes( & m, fb_format, fb_type,
 346                            depth_bits_array, stencil_bits_array, depth_buffer_factor,
 347                            back_buffer_modes, back_buffer_factor,
 348                            GLX_TRUE_COLOR ) ) {
 349         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 350                  __func__, __LINE__ );
 351         return NULL;
 352     }
 353
 354     if ( ! driFillInModes( & m, fb_format, fb_type,
 355                            depth_bits_array, stencil_bits_array, depth_buffer_factor,
 356                            back_buffer_modes, back_buffer_factor,
 357                            GLX_DIRECT_COLOR ) ) {
 358         fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
 359                  __func__, __LINE__ );
 360         return NULL;
 361     }
 362
 363     return modes;
 364 }
 365 #endif /* USE_NEW_INTERFACE */
 366
 367
 368 /**
 369  * This is the bootstrap function for the driver.  libGL supplies all of the
 370  * requisite information about the system, and the driver initializes itself.
 371  * This routine also fills in the linked list pointed to by \c driver_modes
 372  * with the \c __GLcontextModes that the driver can support for windows or
 373  * pbuffers.
 374  *
 375  * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on
 376  *         failure.
 377  */
 378 #ifdef USE_NEW_INTERFACE
 379 void * __driCreateNewScreen( __DRInativeDisplay *dpy, int scrn, __DRIscreen *psc,
 380                              const __GLcontextModes * modes,
 381                              const __DRIversion * ddx_version,
 382                              const __DRIversion * dri_version,
 383                              const __DRIversion * drm_version,
 384                              const __DRIframebuffer * frame_buffer,
 385                              drmAddress pSAREA, int fd,
 386                              int internal_api_version,
 387                              __GLcontextModes ** driver_modes )
 388
 389 {
 390    __DRIscreenPrivate *psp;
 391    static const __DRIversion ddx_expected = { 4, 0, 0 };
 392    static const __DRIversion dri_expected = { 4, 0, 0 };
 393    static const __DRIversion drm_expected = { 2, 0, 0 };
 394
 395    if ( ! driCheckDriDdxDrmVersions2( "Unichrome",
 396                                       dri_version, & dri_expected,
 397                                       ddx_version, & ddx_expected,
 398                                       drm_version, & drm_expected ) ) {
 399       return NULL;
 400    }
 401
 402    psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL,
 403                                   ddx_version, dri_version, drm_version,
 404                                   frame_buffer, pSAREA, fd,
 405                                   internal_api_version, &viaAPI);
 406    if ( psp != NULL ) {
 407       create_context_modes = (PFNGLXCREATECONTEXTMODES)
 408           glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" );
 409       if ( create_context_modes != NULL ) {
 410          VIADRIPtr dri_priv = (VIADRIPtr) psp->pDevPriv;
 411          *driver_modes = viaFillInModes( dri_priv->bytesPerPixel * 8,
 412                                          GL_TRUE );
 413       }
 414    }
 415
 416    return (void *) psp;
 417 }
 418 #endif /* USE_NEW_INTERFACE */