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