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 "pipe/p_inlines.h"
  53 #include "util/u_rect.h"
  54
  55 struct crtc_private
  56 {
  57     drmModeCrtcPtr drm_crtc;
  58
  59     /* hwcursor */
  60     struct pipe_texture *cursor_tex;
  61     unsigned cursor_handle;
  62 };
  63
  64 static void
  65 crtc_dpms(xf86CrtcPtr crtc, int mode)
  66 {
  67     switch (mode) {
  68     case DPMSModeOn:
  69     case DPMSModeStandby:
  70     case DPMSModeSuspend:
  71         break;
  72     case DPMSModeOff:
  73         break;
  74     }
  75 }
  76
  77 static Bool
  78 crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
  79                     Rotation rotation, int x, int y)
  80 {
  81     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
  82     modesettingPtr ms = modesettingPTR(crtc->scrn);
  83     xf86OutputPtr output = NULL;
  84     drmModeConnectorPtr drm_connector;
  85     struct crtc_private *crtcp = crtc->driver_private;
  86     drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
  87     drmModeModeInfo drm_mode;
  88     int i, ret;
  89
  90     for (i = 0; i < config->num_output; output = NULL, i++) {
  91         output = config->output[i];
  92
  93         if (output->crtc == crtc)
  94             break;
  95     }
  96
  97     if (!output)
  98         return FALSE;
  99
 100     drm_connector = output->driver_private;
 101
 102     drm_mode.clock = mode->Clock;
 103     drm_mode.hdisplay = mode->HDisplay;
 104     drm_mode.hsync_start = mode->HSyncStart;
 105     drm_mode.hsync_end = mode->HSyncEnd;
 106     drm_mode.htotal = mode->HTotal;
 107     drm_mode.vdisplay = mode->VDisplay;
 108     drm_mode.vsync_start = mode->VSyncStart;
 109     drm_mode.vsync_end = mode->VSyncEnd;
 110     drm_mode.vtotal = mode->VTotal;
 111     drm_mode.flags = mode->Flags;
 112     drm_mode.hskew = mode->HSkew;
 113     drm_mode.vscan = mode->VScan;
 114     drm_mode.vrefresh = mode->VRefresh;
 115     if (!mode->name)
 116         xf86SetModeDefaultName(mode);
 117     strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN);
 118
 119     ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
 120                          &drm_connector->connector_id, 1, &drm_mode);
 121
 122     if (ret)
 123         return FALSE;
 124
 125     crtc->x = x;
 126     crtc->y = y;
 127     crtc->mode = *mode;
 128     crtc->rotation = rotation;
 129
 130     return TRUE;
 131 }
 132
 133 static void
 134 crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
 135                int size)
 136 {
 137     /* XXX: hockup */
 138 }
 139
 140 static void *
 141 crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
 142 {
 143     return NULL;
 144 }
 145
 146 static PixmapPtr
 147 crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
 148 {
 149     return NULL;
 150 }
 151
 152 static void
 153 crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
 154 {
 155 }
 156
 157 /*
 158  * Cursor functions
 159  */
 160
 161 static void
 162 crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
 163 {
 164     /* XXX: See if this one is needed, as we only support ARGB cursors */
 165 }
 166
 167 static void
 168 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 169 {
 170     modesettingPtr ms = modesettingPTR(crtc->scrn);
 171     struct crtc_private *crtcp = crtc->driver_private;
 172
 173     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 174 }
 175
 176 static void
 177 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 178 {
 179     unsigned char *ptr;
 180     modesettingPtr ms = modesettingPTR(crtc->scrn);
 181     struct crtc_private *crtcp = crtc->driver_private;
 182     struct pipe_transfer *transfer;
 183
 184     if (!crtcp->cursor_tex) {
 185         struct pipe_texture templat;
 186         unsigned pitch;
 187
 188         memset(&templat, 0, sizeof(templat));
 189         templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 190         templat.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 191         templat.target = PIPE_TEXTURE_2D;
 192         templat.last_level = 0;
 193         templat.depth[0] = 1;
 194         templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 195         templat.width[0] = 64;
 196         templat.height[0] = 64;
 197         pf_get_block(templat.format, &templat.block);
 198
 199         crtcp->cursor_tex = ms->screen->texture_create(ms->screen,
 200                                                        &templat);
 201         ms->api->local_handle_from_texture(ms->api,
 202                                            ms->screen,
 203                                            crtcp->cursor_tex,
 204                                            &pitch,
 205                                            &crtcp->cursor_handle);
 206     }
 207
 208     transfer = ms->screen->get_tex_transfer(ms->screen, crtcp->cursor_tex,
 209                                             0, 0, 0,
 210                                             PIPE_TRANSFER_WRITE,
 211                                             0, 0, 64, 64);
 212     ptr = ms->screen->transfer_map(ms->screen, transfer);
 213     util_copy_rect(ptr, &crtcp->cursor_tex->block,
 214                    transfer->stride, 0, 0,
 215                    64, 64, (void*)image, 64 * 4, 0, 0);
 216     ms->screen->transfer_unmap(ms->screen, transfer);
 217     ms->screen->tex_transfer_destroy(transfer);
 218 }
 219
 220 static void
 221 crtc_show_cursor(xf86CrtcPtr crtc)
 222 {
 223     modesettingPtr ms = modesettingPTR(crtc->scrn);
 224     struct crtc_private *crtcp = crtc->driver_private;
 225
 226     if (crtcp->cursor_tex)
 227         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 228                          crtcp->cursor_handle, 64, 64);
 229 }
 230
 231 static void
 232 crtc_hide_cursor(xf86CrtcPtr crtc)
 233 {
 234     modesettingPtr ms = modesettingPTR(crtc->scrn);
 235     struct crtc_private *crtcp = crtc->driver_private;
 236
 237     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 238 }
 239
 240 /**
 241  * Called at vt leave
 242  */
 243 void
 244 xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
 245 {
 246     struct crtc_private *crtcp = crtc->driver_private;
 247
 248     if (crtcp->cursor_tex) {
 249         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 250     }
 251 }
 252
 253 /*
 254  * Misc functions
 255  */
 256
 257 static void
 258 crtc_destroy(xf86CrtcPtr crtc)
 259 {
 260     struct crtc_private *crtcp = crtc->driver_private;
 261
 262     if (crtcp->cursor_tex)
 263         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 264
 265     drmModeFreeCrtc(crtcp->drm_crtc);
 266     xfree(crtcp);
 267 }
 268
 269 static const xf86CrtcFuncsRec crtc_funcs = {
 270     .dpms = crtc_dpms,
 271     .set_mode_major = crtc_set_mode_major,
 272
 273     .set_cursor_colors = crtc_set_cursor_colors,
 274     .set_cursor_position = crtc_set_cursor_position,
 275     .show_cursor = crtc_show_cursor,
 276     .hide_cursor = crtc_hide_cursor,
 277     .load_cursor_argb = crtc_load_cursor_argb,
 278
 279     .shadow_create = crtc_shadow_create,
 280     .shadow_allocate = crtc_shadow_allocate,
 281     .shadow_destroy = crtc_shadow_destroy,
 282
 283     .gamma_set = crtc_gamma_set,
 284     .destroy = crtc_destroy,
 285 };
 286
 287 void
 288 xorg_crtc_init(ScrnInfoPtr pScrn)
 289 {
 290     modesettingPtr ms = modesettingPTR(pScrn);
 291     xf86CrtcPtr crtc;
 292     drmModeResPtr res;
 293     drmModeCrtcPtr drm_crtc = NULL;
 294     struct crtc_private *crtcp;
 295     int c;
 296
 297     res = drmModeGetResources(ms->fd);
 298     if (res == 0) {
 299         ErrorF("Failed drmModeGetResources %d\n", errno);
 300         return;
 301     }
 302
 303     for (c = 0; c < res->count_crtcs; c++) {
 304         drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
 305
 306         if (!drm_crtc)
 307             continue;
 308
 309         crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 310         if (crtc == NULL)
 311             goto out;
 312
 313         crtcp = xcalloc(1, sizeof(struct crtc_private));
 314         if (!crtcp) {
 315             xf86CrtcDestroy(crtc);
 316             goto out;
 317         }
 318
 319         crtcp->drm_crtc = drm_crtc;
 320
 321         crtc->driver_private = crtcp;
 322     }
 323
 324   out:
 325     drmModeFreeResources(res);
 326 }
 327
 328 /* vim: set sw=4 ts=8 sts=4: */