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     //ScrnInfoPtr pScrn = crtc->scrn;
  68
  69     switch (mode) {
  70     case DPMSModeOn:
  71     case DPMSModeStandby:
  72     case DPMSModeSuspend:
  73         break;
  74     case DPMSModeOff:
  75         break;
  76     }
  77 }
  78
  79 static Bool
  80 crtc_lock(xf86CrtcPtr crtc)
  81 {
  82     return FALSE;
  83 }
  84
  85 static void
  86 crtc_unlock(xf86CrtcPtr crtc)
  87 {
  88 }
  89
  90 static void
  91 crtc_prepare(xf86CrtcPtr crtc)
  92 {
  93 }
  94
  95 static void
  96 crtc_commit(xf86CrtcPtr crtc)
  97 {
  98 }
  99
 100 static Bool
 101 crtc_mode_fixup(xf86CrtcPtr crtc, DisplayModePtr mode,
 102                 DisplayModePtr adjusted_mode)
 103 {
 104     return TRUE;
 105 }
 106
 107 static void
 108 crtc_mode_set(xf86CrtcPtr crtc, DisplayModePtr mode,
 109               DisplayModePtr adjusted_mode, int x, int y)
 110 {
 111     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
 112     modesettingPtr ms = modesettingPTR(crtc->scrn);
 113     xf86OutputPtr output = config->output[config->compat_output];
 114     drmModeConnectorPtr drm_connector = output->driver_private;
 115     struct crtc_private *crtcp = crtc->driver_private;
 116     drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
 117     drmModeModeInfo drm_mode;
 118
 119     drm_mode.clock = mode->Clock;
 120     drm_mode.hdisplay = mode->HDisplay;
 121     drm_mode.hsync_start = mode->HSyncStart;
 122     drm_mode.hsync_end = mode->HSyncEnd;
 123     drm_mode.htotal = mode->HTotal;
 124     drm_mode.vdisplay = mode->VDisplay;
 125     drm_mode.vsync_start = mode->VSyncStart;
 126     drm_mode.vsync_end = mode->VSyncEnd;
 127     drm_mode.vtotal = mode->VTotal;
 128     drm_mode.flags = mode->Flags;
 129     drm_mode.hskew = mode->HSkew;
 130     drm_mode.vscan = mode->VScan;
 131     drm_mode.vrefresh = mode->VRefresh;
 132     if (!mode->name)
 133         xf86SetModeDefaultName(mode);
 134     strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN);
 135
 136     drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
 137                    &drm_connector->connector_id, 1, &drm_mode);
 138 }
 139
 140 #if 0
 141 static void
 142 crtc_load_lut(xf86CrtcPtr crtc)
 143 {
 144     //ScrnInfoPtr pScrn = crtc->scrn;
 145 }
 146 #endif
 147
 148 static void
 149 crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
 150                int size)
 151 {
 152 }
 153
 154 static void *
 155 crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
 156 {
 157     //ScrnInfoPtr pScrn = crtc->scrn;
 158
 159     return NULL;
 160 }
 161
 162 static PixmapPtr
 163 crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
 164 {
 165     //ScrnInfoPtr pScrn = crtc->scrn;
 166
 167     return NULL;
 168 }
 169
 170 static void
 171 crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
 172 {
 173     //ScrnInfoPtr pScrn = crtc->scrn;
 174 }
 175
 176 /*
 177  * Cursor functions
 178  */
 179
 180 static void
 181 crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
 182 {
 183 }
 184
 185 static void
 186 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 187 {
 188     modesettingPtr ms = modesettingPTR(crtc->scrn);
 189     struct crtc_private *crtcp = crtc->driver_private;
 190
 191     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 192 }
 193 static void
 194 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 195 {
 196     unsigned char *ptr;
 197     modesettingPtr ms = modesettingPTR(crtc->scrn);
 198     struct crtc_private *crtcp = crtc->driver_private;
 199     struct pipe_transfer *transfer;
 200
 201     if (!crtcp->cursor_tex) {
 202         struct pipe_texture templat;
 203         unsigned pitch;
 204
 205         memset(&templat, 0, sizeof(templat));
 206         templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 207         templat.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 208         templat.target = PIPE_TEXTURE_2D;
 209         templat.last_level = 0;
 210         templat.depth[0] = 1;
 211         templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 212         templat.width[0] = 64;
 213         templat.height[0] = 64;
 214         pf_get_block(templat.format, &templat.block);
 215
 216         crtcp->cursor_tex = ms->screen->texture_create(ms->screen,
 217                                                        &templat);
 218         ms->api->local_handle_from_texture(ms->api,
 219                                            ms->screen,
 220                                            crtcp->cursor_tex,
 221                                            &pitch,
 222                                            &crtcp->cursor_handle);
 223     }
 224
 225     transfer = ms->screen->get_tex_transfer(ms->screen, crtcp->cursor_tex,
 226                                             0, 0, 0,
 227                                             PIPE_TRANSFER_WRITE,
 228                                             0, 0, 64, 64);
 229     ptr = ms->screen->transfer_map(ms->screen, transfer);
 230     util_copy_rect(ptr, &crtcp->cursor_tex->block,
 231                    transfer->stride, 0, 0,
 232                    64, 64, (void*)image, 64 * 4, 0, 0);
 233     ms->screen->transfer_unmap(ms->screen, transfer);
 234     ms->screen->tex_transfer_destroy(transfer);
 235 }
 236
 237 static void
 238 crtc_show_cursor(xf86CrtcPtr crtc)
 239 {
 240     modesettingPtr ms = modesettingPTR(crtc->scrn);
 241     struct crtc_private *crtcp = crtc->driver_private;
 242
 243     if (crtcp->cursor_tex)
 244         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 245                          crtcp->cursor_handle, 64, 64);
 246 }
 247
 248 static void
 249 crtc_hide_cursor(xf86CrtcPtr crtc)
 250 {
 251     modesettingPtr ms = modesettingPTR(crtc->scrn);
 252     struct crtc_private *crtcp = crtc->driver_private;
 253
 254     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 255 }
 256
 257 void
 258 crtc_cursor_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 }
 266
 267 /*
 268  * Misc functions
 269  */
 270
 271 static void
 272 crtc_destroy(xf86CrtcPtr crtc)
 273 {
 274     struct crtc_private *crtcp = crtc->driver_private;
 275
 276     if (crtcp->cursor_tex)
 277         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 278
 279     drmModeFreeCrtc(crtcp->drm_crtc);
 280     xfree(crtcp);
 281 }
 282
 283 static const xf86CrtcFuncsRec crtc_funcs = {
 284     .dpms = crtc_dpms,
 285
 286     .lock = crtc_lock,
 287     .unlock = crtc_unlock,
 288     .mode_fixup = crtc_mode_fixup,
 289     .prepare = crtc_prepare,
 290     .mode_set = crtc_mode_set,
 291     .commit = crtc_commit,
 292
 293     .set_cursor_colors = crtc_set_cursor_colors,
 294     .set_cursor_position = crtc_set_cursor_position,
 295     .show_cursor = crtc_show_cursor,
 296     .hide_cursor = crtc_hide_cursor,
 297     .load_cursor_argb = crtc_load_cursor_argb,
 298
 299     .shadow_create = crtc_shadow_create,
 300     .shadow_allocate = crtc_shadow_allocate,
 301     .shadow_destroy = crtc_shadow_destroy,
 302
 303     .gamma_set = crtc_gamma_set,
 304     .destroy = crtc_destroy,
 305 };
 306
 307 void
 308 crtc_init(ScrnInfoPtr pScrn)
 309 {
 310     modesettingPtr ms = modesettingPTR(pScrn);
 311     xf86CrtcPtr crtc;
 312     drmModeResPtr res;
 313     drmModeCrtcPtr drm_crtc = NULL;
 314     struct crtc_private *crtcp;
 315     int c;
 316
 317     res = drmModeGetResources(ms->fd);
 318     if (res == 0) {
 319         ErrorF("Failed drmModeGetResources %d\n", errno);
 320         return;
 321     }
 322
 323     for (c = 0; c < res->count_crtcs; c++) {
 324         drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
 325         if (!drm_crtc)
 326             continue;
 327
 328         crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 329         if (crtc == NULL)
 330             goto out;
 331
 332         crtcp = xcalloc(1, sizeof(struct crtc_private));
 333         if (!crtcp) {
 334             xf86CrtcDestroy(crtc);
 335             goto out;
 336         }
 337
 338         crtcp->drm_crtc = drm_crtc;
 339
 340         crtc->driver_private = crtcp;
 341
 342     }
 343
 344   out:
 345     drmModeFreeResources(res);
 346 }
 347
 348 /* vim: set sw=4 ts=8 sts=4: */