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