src/gallium/state_trackers/xorg/xorg_crtc.c

   1 /*
   2  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   3  * 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
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  *
  26  * Author: Alan Hourihane <alanh@tungstengraphics.com>
  27  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  28  *
  29  */
  30
  31 #include <unistd.h>
  32 #include <string.h>
  33 #include <assert.h>
  34 #include <stdlib.h>
  35 #include <math.h>
  36 #include <stdint.h>
  37
  38 #include "xorg-server.h"
  39 #include <xf86.h>
  40 #include <xf86i2c.h>
  41 #include <xf86Crtc.h>
  42 #include "xorg_tracker.h"
  43 #include "xf86Modes.h"
  44
  45 #ifdef HAVE_XEXTPROTO_71
  46 #include <X11/extensions/dpmsconst.h>
  47 #else
  48 #define DPMS_SERVER
  49 #include <X11/extensions/dpms.h>
  50 #endif
  51
  52 #include "util/u_inlines.h"
  53 #include "util/u_rect.h"
  54
  55 #ifdef HAVE_LIBKMS
  56 #include "libkms.h"
  57 #endif
  58
  59 struct crtc_private
  60 {
  61     drmModeCrtcPtr drm_crtc;
  62
  63     /* hwcursor */
  64     struct pipe_texture *cursor_tex;
  65     struct kms_bo *cursor_bo;
  66
  67     unsigned cursor_handle;
  68 };
  69
  70 static void
  71 crtc_dpms(xf86CrtcPtr crtc, int mode)
  72 {
  73     /* ScrnInfoPtr pScrn = crtc->scrn; */
  74
  75     switch (mode) {
  76     case DPMSModeOn:
  77     case DPMSModeStandby:
  78     case DPMSModeSuspend:
  79         break;
  80     case DPMSModeOff:
  81         break;
  82     }
  83 }
  84
  85 static Bool
  86 crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
  87                     Rotation rotation, int x, int y)
  88 {
  89     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
  90     modesettingPtr ms = modesettingPTR(crtc->scrn);
  91     xf86OutputPtr output = NULL;
  92     drmModeConnectorPtr drm_connector;
  93     struct crtc_private *crtcp = crtc->driver_private;
  94     drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
  95     drmModeModeInfo drm_mode;
  96     int i, ret;
  97
  98     for (i = 0; i < config->num_output; output = NULL, i++) {
  99         output = config->output[i];
 100
 101         if (output->crtc == crtc)
 102             break;
 103     }
 104
 105     if (!output)
 106         return FALSE;
 107
 108     drm_connector = output->driver_private;
 109
 110     drm_mode.clock = mode->Clock;
 111     drm_mode.hdisplay = mode->HDisplay;
 112     drm_mode.hsync_start = mode->HSyncStart;
 113     drm_mode.hsync_end = mode->HSyncEnd;
 114     drm_mode.htotal = mode->HTotal;
 115     drm_mode.vdisplay = mode->VDisplay;
 116     drm_mode.vsync_start = mode->VSyncStart;
 117     drm_mode.vsync_end = mode->VSyncEnd;
 118     drm_mode.vtotal = mode->VTotal;
 119     drm_mode.flags = mode->Flags;
 120     drm_mode.hskew = mode->HSkew;
 121     drm_mode.vscan = mode->VScan;
 122     drm_mode.vrefresh = mode->VRefresh;
 123     if (!mode->name)
 124         xf86SetModeDefaultName(mode);
 125     strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
 126     drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
 127
 128     ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
 129                          &drm_connector->connector_id, 1, &drm_mode);
 130
 131     if (ret)
 132         return FALSE;
 133
 134     crtc->x = x;
 135     crtc->y = y;
 136     crtc->mode = *mode;
 137     crtc->rotation = rotation;
 138
 139     return TRUE;
 140 }
 141
 142 static void
 143 crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
 144                int size)
 145 {
 146     /* XXX: hockup */
 147 }
 148
 149 static void *
 150 crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
 151 {
 152     /* ScrnInfoPtr pScrn = crtc->scrn; */
 153
 154     return NULL;
 155 }
 156
 157 static PixmapPtr
 158 crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
 159 {
 160     /* ScrnInfoPtr pScrn = crtc->scrn; */
 161
 162     return NULL;
 163 }
 164
 165 static void
 166 crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
 167 {
 168     /* ScrnInfoPtr pScrn = crtc->scrn; */
 169 }
 170
 171 /*
 172  * Cursor functions
 173  */
 174
 175 static void
 176 crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
 177 {
 178     /* XXX: See if this one is needed, as we only support ARGB cursors */
 179 }
 180
 181 static void
 182 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 183 {
 184     modesettingPtr ms = modesettingPTR(crtc->scrn);
 185     struct crtc_private *crtcp = crtc->driver_private;
 186
 187     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 188 }
 189
 190 static void
 191 crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
 192 {
 193     unsigned char *ptr;
 194     modesettingPtr ms = modesettingPTR(crtc->scrn);
 195     struct crtc_private *crtcp = crtc->driver_private;
 196     struct pipe_transfer *transfer;
 197
 198     if (!crtcp->cursor_tex) {
 199         struct pipe_texture templat;
 200         struct winsys_handle whandle;
 201
 202         memset(&templat, 0, sizeof(templat));
 203         templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 204         templat.tex_usage |= PIPE_TEXTURE_USAGE_SCANOUT;
 205         templat.target = PIPE_TEXTURE_2D;
 206         templat.last_level = 0;
 207         templat.depth0 = 1;
 208         templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
 209         templat.width0 = 64;
 210         templat.height0 = 64;
 211
 212         memset(&whandle, 0, sizeof(whandle));
 213         whandle.type = DRM_API_HANDLE_TYPE_KMS;
 214
 215         crtcp->cursor_tex = ms->screen->texture_create(ms->screen,
 216                                                        &templat);
 217         ms->screen->texture_get_handle(ms->screen, crtcp->cursor_tex, &whandle);
 218
 219         crtcp->cursor_handle = whandle.handle;
 220     }
 221
 222     transfer = ms->screen->get_tex_transfer(ms->screen, crtcp->cursor_tex,
 223                                             0, 0, 0,
 224                                             PIPE_TRANSFER_WRITE,
 225                                             0, 0, 64, 64);
 226     ptr = ms->screen->transfer_map(ms->screen, transfer);
 227     util_copy_rect(ptr, crtcp->cursor_tex->format,
 228                    transfer->stride, 0, 0,
 229                    64, 64, (void*)image, 64 * 4, 0, 0);
 230     ms->screen->transfer_unmap(ms->screen, transfer);
 231     ms->screen->tex_transfer_destroy(transfer);
 232 }
 233
 234 #if HAVE_LIBKMS
 235 static void
 236 crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
 237 {
 238     modesettingPtr ms = modesettingPTR(crtc->scrn);
 239     struct crtc_private *crtcp = crtc->driver_private;
 240     unsigned char *ptr;
 241
 242     if (!crtcp->cursor_bo) {
 243         unsigned attr[8];
 244
 245         attr[0] = KMS_BO_TYPE;
 246 #ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
 247         attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
 248 #else
 249         attr[1] = KMS_BO_TYPE_CURSOR;
 250 #endif
 251         attr[2] = KMS_WIDTH;
 252         attr[3] = 64;
 253         attr[4] = KMS_HEIGHT;
 254         attr[5] = 64;
 255         attr[6] = 0;
 256
 257         if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
 258            return;
 259
 260         if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
 261                             &crtcp->cursor_handle))
 262             goto err_bo_destroy;
 263     }
 264
 265     kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
 266     memcpy(ptr, image, 64*64*4);
 267     kms_bo_unmap(crtcp->cursor_bo);
 268
 269     return;
 270
 271 err_bo_destroy:
 272     kms_bo_destroy(&crtcp->cursor_bo);
 273 }
 274 #endif
 275
 276 static void
 277 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 278 {
 279     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
 280     modesettingPtr ms = modesettingPTR(crtc->scrn);
 281
 282     /* Older X servers have cursor reference counting bugs leading to use of
 283      * freed memory and consequently random crashes. Should be fixed as of
 284      * xserver 1.8, but this workaround shouldn't hurt anyway.
 285      */
 286     if (config->cursor)
 287        config->cursor->refcnt++;
 288
 289     if (ms->cursor)
 290        FreeCursor(ms->cursor, None);
 291
 292     ms->cursor = config->cursor;
 293
 294     if (ms->screen)
 295         crtc_load_cursor_argb_ga3d(crtc, image);
 296 #ifdef HAVE_LIBKMS
 297     else if (ms->kms)
 298         crtc_load_cursor_argb_kms(crtc, image);
 299 #endif
 300 }
 301
 302 static void
 303 crtc_show_cursor(xf86CrtcPtr crtc)
 304 {
 305     modesettingPtr ms = modesettingPTR(crtc->scrn);
 306     struct crtc_private *crtcp = crtc->driver_private;
 307
 308     if (crtcp->cursor_tex || crtcp->cursor_bo)
 309         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 310                          crtcp->cursor_handle, 64, 64);
 311 }
 312
 313 static void
 314 crtc_hide_cursor(xf86CrtcPtr crtc)
 315 {
 316     modesettingPtr ms = modesettingPTR(crtc->scrn);
 317     struct crtc_private *crtcp = crtc->driver_private;
 318
 319     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 320 }
 321
 322 /**
 323  * Called at vt leave
 324  */
 325 void
 326 xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
 327 {
 328     struct crtc_private *crtcp = crtc->driver_private;
 329
 330     if (crtcp->cursor_tex)
 331         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 332 #ifdef HAVE_LIBKMS
 333     if (crtcp->cursor_bo)
 334         kms_bo_destroy(&crtcp->cursor_bo);
 335 #endif
 336 }
 337
 338 /*
 339  * Misc functions
 340  */
 341
 342 static void
 343 crtc_destroy(xf86CrtcPtr crtc)
 344 {
 345     struct crtc_private *crtcp = crtc->driver_private;
 346
 347     xorg_crtc_cursor_destroy(crtc);
 348
 349     drmModeFreeCrtc(crtcp->drm_crtc);
 350
 351     xfree(crtcp);
 352     crtc->driver_private = NULL;
 353 }
 354
 355 static const xf86CrtcFuncsRec crtc_funcs = {
 356     .dpms = crtc_dpms,
 357     .set_mode_major = crtc_set_mode_major,
 358
 359     .set_cursor_colors = crtc_set_cursor_colors,
 360     .set_cursor_position = crtc_set_cursor_position,
 361     .show_cursor = crtc_show_cursor,
 362     .hide_cursor = crtc_hide_cursor,
 363     .load_cursor_argb = crtc_load_cursor_argb,
 364
 365     .shadow_create = crtc_shadow_create,
 366     .shadow_allocate = crtc_shadow_allocate,
 367     .shadow_destroy = crtc_shadow_destroy,
 368
 369     .gamma_set = crtc_gamma_set,
 370     .destroy = crtc_destroy,
 371 };
 372
 373 void
 374 xorg_crtc_init(ScrnInfoPtr pScrn)
 375 {
 376     modesettingPtr ms = modesettingPTR(pScrn);
 377     xf86CrtcPtr crtc;
 378     drmModeResPtr res;
 379     drmModeCrtcPtr drm_crtc = NULL;
 380     struct crtc_private *crtcp;
 381     int c;
 382
 383     res = drmModeGetResources(ms->fd);
 384     if (res == 0) {
 385         ErrorF("Failed drmModeGetResources %d\n", errno);
 386         return;
 387     }
 388
 389     for (c = 0; c < res->count_crtcs; c++) {
 390         drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
 391
 392         if (!drm_crtc)
 393             continue;
 394
 395         crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 396         if (crtc == NULL)
 397             goto out;
 398
 399         crtcp = xcalloc(1, sizeof(struct crtc_private));
 400         if (!crtcp) {
 401             xf86CrtcDestroy(crtc);
 402             goto out;
 403         }
 404
 405         crtcp->drm_crtc = drm_crtc;
 406
 407         crtc->driver_private = crtcp;
 408     }
 409
 410   out:
 411     drmModeFreeResources(res);
 412 }
 413
 414 /* vim: set sw=4 ts=8 sts=4: */