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 "state_tracker/drm_driver.h"
  54 #include "util/u_inlines.h"
  55 #include "util/u_rect.h"
  56
  57 #ifdef HAVE_LIBKMS
  58 #include "libkms/libkms.h"
  59 #endif
  60
  61 struct crtc_private
  62 {
  63     drmModeCrtcPtr drm_crtc;
  64
  65     /* hwcursor */
  66     struct pipe_resource *cursor_tex;
  67     struct kms_bo *cursor_bo;
  68
  69     unsigned cursor_handle;
  70 };
  71
  72 static void
  73 crtc_dpms(xf86CrtcPtr crtc, int mode)
  74 {
  75     /* ScrnInfoPtr pScrn = crtc->scrn; */
  76
  77     switch (mode) {
  78     case DPMSModeOn:
  79     case DPMSModeStandby:
  80     case DPMSModeSuspend:
  81         break;
  82     case DPMSModeOff:
  83         break;
  84     }
  85 }
  86
  87 static Bool
  88 crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
  89                     Rotation rotation, int x, int y)
  90 {
  91     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
  92     modesettingPtr ms = modesettingPTR(crtc->scrn);
  93     xf86OutputPtr output = NULL;
  94     struct crtc_private *crtcp = crtc->driver_private;
  95     drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
  96     drmModeModeInfo drm_mode;
  97     int i, ret;
  98     unsigned int connector_id;
  99
 100     for (i = 0; i < config->num_output; output = NULL, i++) {
 101         output = config->output[i];
 102
 103         if (output->crtc == crtc)
 104             break;
 105     }
 106
 107     if (!output)
 108         return FALSE;
 109
 110     connector_id = xorg_output_get_id(output);
 111
 112     drm_mode.clock = mode->Clock;
 113     drm_mode.hdisplay = mode->HDisplay;
 114     drm_mode.hsync_start = mode->HSyncStart;
 115     drm_mode.hsync_end = mode->HSyncEnd;
 116     drm_mode.htotal = mode->HTotal;
 117     drm_mode.vdisplay = mode->VDisplay;
 118     drm_mode.vsync_start = mode->VSyncStart;
 119     drm_mode.vsync_end = mode->VSyncEnd;
 120     drm_mode.vtotal = mode->VTotal;
 121     drm_mode.flags = mode->Flags;
 122     drm_mode.hskew = mode->HSkew;
 123     drm_mode.vscan = mode->VScan;
 124     drm_mode.vrefresh = mode->VRefresh;
 125     drm_mode.type = 0;
 126     if (!mode->name)
 127         xf86SetModeDefaultName(mode);
 128     strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
 129     drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
 130
 131     ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
 132                          &connector_id, 1, &drm_mode);
 133
 134     if (ret)
 135         return FALSE;
 136
 137     /* Only set gamma when needed, to avoid unneeded delays. */
 138 #if defined(XF86_CRTC_VERSION) && XF86_CRTC_VERSION >= 3
 139     if (!crtc->active && crtc->version >= 3)
 140         crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
 141                                crtc->gamma_blue, crtc->gamma_size);
 142     crtc->active = TRUE;
 143 #endif
 144
 145     crtc->x = x;
 146     crtc->y = y;
 147     crtc->mode = *mode;
 148     crtc->rotation = rotation;
 149
 150     return TRUE;
 151 }
 152
 153 static void
 154 crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
 155                int size)
 156 {
 157     modesettingPtr ms = modesettingPTR(crtc->scrn);
 158     struct crtc_private *crtcp = crtc->driver_private;
 159
 160     drmModeCrtcSetGamma(ms->fd, crtcp->drm_crtc->crtc_id, size, red, green, blue);
 161 }
 162
 163 #if 0 /* Implement and enable to enable rotation and reflection. */
 164 static void *
 165 crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
 166 {
 167     /* ScrnInfoPtr pScrn = crtc->scrn; */
 168
 169     return NULL;
 170 }
 171
 172 static PixmapPtr
 173 crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
 174 {
 175     /* ScrnInfoPtr pScrn = crtc->scrn; */
 176
 177     return NULL;
 178 }
 179
 180 static void
 181 crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
 182 {
 183     /* ScrnInfoPtr pScrn = crtc->scrn; */
 184 }
 185
 186 #endif
 187
 188 /*
 189  * Cursor functions
 190  */
 191
 192 static void
 193 crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
 194 {
 195     /* XXX: See if this one is needed, as we only support ARGB cursors */
 196 }
 197
 198 static void
 199 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 200 {
 201     modesettingPtr ms = modesettingPTR(crtc->scrn);
 202     struct crtc_private *crtcp = crtc->driver_private;
 203
 204     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 205 }
 206
 207 static void
 208 crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
 209 {
 210     unsigned char *ptr;
 211     modesettingPtr ms = modesettingPTR(crtc->scrn);
 212     struct crtc_private *crtcp = crtc->driver_private;
 213     struct pipe_transfer *transfer;
 214     struct pipe_fence_handle *fence = NULL;
 215     struct pipe_context *ctx = ms->ctx;
 216     struct pipe_screen *screen = ms->screen;
 217
 218     if (!crtcp->cursor_tex) {
 219         struct pipe_resource templat;
 220         struct winsys_handle whandle;
 221
 222         memset(&templat, 0, sizeof(templat));
 223         templat.bind |= PIPE_BIND_RENDER_TARGET;
 224         templat.bind |= PIPE_BIND_SCANOUT;
 225         templat.bind |= PIPE_BIND_CURSOR;
 226         templat.target = PIPE_TEXTURE_2D;
 227         templat.last_level = 0;
 228         templat.depth0 = 1;
 229         templat.array_size = 1;
 230         templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
 231         templat.width0 = 64;
 232         templat.height0 = 64;
 233
 234         memset(&whandle, 0, sizeof(whandle));
 235         whandle.type = DRM_API_HANDLE_TYPE_KMS;
 236
 237         crtcp->cursor_tex = screen->resource_create(screen, &templat);
 238         screen->resource_get_handle(screen, crtcp->cursor_tex, &whandle);
 239
 240         crtcp->cursor_handle = whandle.handle;
 241     }
 242
 243     ptr = pipe_transfer_map(ctx, crtcp->cursor_tex,
 244                             0, 0,
 245                             PIPE_TRANSFER_WRITE,
 246                             0, 0, 64, 64, &transfer);
 247     util_copy_rect(ptr, crtcp->cursor_tex->format,
 248                    transfer->stride, 0, 0,
 249                    64, 64, (void*)image, 64 * 4, 0, 0);
 250     ctx->transfer_unmap(ctx, transfer);
 251     ctx->flush(ctx, &fence, 0);
 252
 253     if (fence) {
 254         screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE);
 255         screen->fence_reference(screen, &fence, NULL);
 256     }
 257
 258     if (crtc->cursor_shown)
 259         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 260                          crtcp->cursor_handle, 64, 64);
 261 }
 262
 263 #if HAVE_LIBKMS
 264 static void
 265 crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
 266 {
 267     modesettingPtr ms = modesettingPTR(crtc->scrn);
 268     struct crtc_private *crtcp = crtc->driver_private;
 269     unsigned char *ptr;
 270
 271     if (!crtcp->cursor_bo) {
 272         unsigned attr[8];
 273
 274         attr[0] = KMS_BO_TYPE;
 275 #ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
 276         attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
 277 #else
 278         attr[1] = KMS_BO_TYPE_CURSOR;
 279 #endif
 280         attr[2] = KMS_WIDTH;
 281         attr[3] = 64;
 282         attr[4] = KMS_HEIGHT;
 283         attr[5] = 64;
 284         attr[6] = 0;
 285
 286         if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
 287            return;
 288
 289         if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
 290                             &crtcp->cursor_handle))
 291             goto err_bo_destroy;
 292     }
 293
 294     kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
 295     memcpy(ptr, image, 64*64*4);
 296     kms_bo_unmap(crtcp->cursor_bo);
 297
 298     if (crtc->cursor_shown)
 299         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 300                          crtcp->cursor_handle, 64, 64);
 301
 302     return;
 303
 304 err_bo_destroy:
 305     kms_bo_destroy(&crtcp->cursor_bo);
 306 }
 307 #endif
 308
 309 static void
 310 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 311 {
 312     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
 313     modesettingPtr ms = modesettingPTR(crtc->scrn);
 314
 315     /* Older X servers have cursor reference counting bugs leading to use of
 316      * freed memory and consequently random crashes. Should be fixed as of
 317      * xserver 1.8, but this workaround shouldn't hurt anyway.
 318      */
 319     if (config->cursor)
 320        config->cursor->refcnt++;
 321
 322     if (ms->cursor)
 323        FreeCursor(ms->cursor, None);
 324
 325     ms->cursor = config->cursor;
 326
 327     if (ms->screen)
 328         crtc_load_cursor_argb_ga3d(crtc, image);
 329 #ifdef HAVE_LIBKMS
 330     else if (ms->kms)
 331         crtc_load_cursor_argb_kms(crtc, image);
 332 #endif
 333 }
 334
 335 static void
 336 crtc_show_cursor(xf86CrtcPtr crtc)
 337 {
 338     modesettingPtr ms = modesettingPTR(crtc->scrn);
 339     struct crtc_private *crtcp = crtc->driver_private;
 340
 341     if (crtcp->cursor_tex || crtcp->cursor_bo)
 342         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 343                          crtcp->cursor_handle, 64, 64);
 344 }
 345
 346 static void
 347 crtc_hide_cursor(xf86CrtcPtr crtc)
 348 {
 349     modesettingPtr ms = modesettingPTR(crtc->scrn);
 350     struct crtc_private *crtcp = crtc->driver_private;
 351
 352     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 353 }
 354
 355 /**
 356  * Called at vt leave
 357  */
 358 void
 359 xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
 360 {
 361     struct crtc_private *crtcp = crtc->driver_private;
 362
 363     if (crtcp->cursor_tex)
 364         pipe_resource_reference(&crtcp->cursor_tex, NULL);
 365 #ifdef HAVE_LIBKMS
 366     if (crtcp->cursor_bo)
 367         kms_bo_destroy(&crtcp->cursor_bo);
 368 #endif
 369 }
 370
 371 /*
 372  * Misc functions
 373  */
 374
 375 static void
 376 crtc_destroy(xf86CrtcPtr crtc)
 377 {
 378     struct crtc_private *crtcp = crtc->driver_private;
 379
 380     xorg_crtc_cursor_destroy(crtc);
 381
 382     drmModeFreeCrtc(crtcp->drm_crtc);
 383
 384     free(crtcp);
 385     crtc->driver_private = NULL;
 386 }
 387
 388 static const xf86CrtcFuncsRec crtc_funcs = {
 389     .dpms = crtc_dpms,
 390     .set_mode_major = crtc_set_mode_major,
 391
 392     .set_cursor_colors = crtc_set_cursor_colors,
 393     .set_cursor_position = crtc_set_cursor_position,
 394     .show_cursor = crtc_show_cursor,
 395     .hide_cursor = crtc_hide_cursor,
 396     .load_cursor_argb = crtc_load_cursor_argb,
 397
 398     .shadow_create = NULL,
 399     .shadow_allocate = NULL,
 400     .shadow_destroy = NULL,
 401
 402     .gamma_set = crtc_gamma_set,
 403     .destroy = crtc_destroy,
 404 };
 405
 406 void
 407 xorg_crtc_init(ScrnInfoPtr pScrn)
 408 {
 409     modesettingPtr ms = modesettingPTR(pScrn);
 410     xf86CrtcPtr crtc;
 411     drmModeResPtr res;
 412     drmModeCrtcPtr drm_crtc = NULL;
 413     struct crtc_private *crtcp;
 414     int c;
 415
 416     res = drmModeGetResources(ms->fd);
 417     if (res == 0) {
 418         ErrorF("Failed drmModeGetResources %d\n", errno);
 419         return;
 420     }
 421
 422     for (c = 0; c < res->count_crtcs; c++) {
 423         drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
 424
 425         if (!drm_crtc)
 426             continue;
 427
 428         crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 429         if (crtc == NULL)
 430             goto out;
 431
 432         crtcp = calloc(1, sizeof(struct crtc_private));
 433         if (!crtcp) {
 434             xf86CrtcDestroy(crtc);
 435             goto out;
 436         }
 437
 438         crtcp->drm_crtc = drm_crtc;
 439
 440         crtc->driver_private = crtcp;
 441     }
 442
 443   out:
 444     drmModeFreeResources(res);
 445 }
 446
 447 /* vim: set sw=4 ts=8 sts=4: */