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 static void
 177 crtc_destroy(xf86CrtcPtr crtc)
 178 {
 179     struct crtc_private *crtcp = crtc->driver_private;
 180
 181     if (crtcp->cursor_tex)
 182         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 183
 184     drmModeFreeCrtc(crtcp->drm_crtc);
 185     xfree(crtcp);
 186 }
 187
 188 static void
 189 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 190 {
 191     unsigned char *ptr;
 192     modesettingPtr ms = modesettingPTR(crtc->scrn);
 193     struct crtc_private *crtcp = crtc->driver_private;
 194     struct pipe_transfer *transfer;
 195
 196     if (!crtcp->cursor_tex) {
 197         struct pipe_texture templat;
 198         unsigned pitch;
 199
 200         memset(&templat, 0, sizeof(templat));
 201         templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 202         templat.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 203         templat.target = PIPE_TEXTURE_2D;
 204         templat.last_level = 0;
 205         templat.depth[0] = 1;
 206         templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 207         templat.width[0] = 64;
 208         templat.height[0] = 64;
 209         pf_get_block(templat.format, &templat.block);
 210
 211         crtcp->cursor_tex = ms->screen->texture_create(ms->screen,
 212                                                        &templat);
 213         ms->api->local_handle_from_texture(ms->api,
 214                                            ms->screen,
 215                                            crtcp->cursor_tex,
 216                                            &pitch,
 217                                            &crtcp->cursor_handle);
 218     }
 219
 220     transfer = ms->screen->get_tex_transfer(ms->screen, crtcp->cursor_tex,
 221                                             0, 0, 0,
 222                                             PIPE_TRANSFER_WRITE,
 223                                             0, 0, 64, 64);
 224     ptr = ms->screen->transfer_map(ms->screen, transfer);
 225     util_copy_rect(ptr, &crtcp->cursor_tex->block,
 226                    transfer->stride, 0, 0,
 227                    64, 64, (void*)image, 64 * 4, 0, 0);
 228     ms->screen->transfer_unmap(ms->screen, transfer);
 229     ms->screen->tex_transfer_destroy(transfer);
 230 }
 231
 232 static void
 233 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 234 {
 235     modesettingPtr ms = modesettingPTR(crtc->scrn);
 236     struct crtc_private *crtcp = crtc->driver_private;
 237
 238     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 239 }
 240
 241 static void
 242 crtc_show_cursor(xf86CrtcPtr crtc)
 243 {
 244     modesettingPtr ms = modesettingPTR(crtc->scrn);
 245     struct crtc_private *crtcp = crtc->driver_private;
 246
 247     if (crtcp->cursor_tex)
 248         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 249                          crtcp->cursor_handle, 64, 64);
 250 }
 251
 252 static void
 253 crtc_hide_cursor(xf86CrtcPtr crtc)
 254 {
 255     modesettingPtr ms = modesettingPTR(crtc->scrn);
 256     struct crtc_private *crtcp = crtc->driver_private;
 257
 258     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 259 }
 260
 261 static const xf86CrtcFuncsRec crtc_funcs = {
 262     .dpms = crtc_dpms,
 263     .save = NULL,
 264     .restore = NULL,
 265     .lock = crtc_lock,
 266     .unlock = crtc_unlock,
 267     .mode_fixup = crtc_mode_fixup,
 268     .prepare = crtc_prepare,
 269     .mode_set = crtc_mode_set,
 270     .commit = crtc_commit,
 271     .gamma_set = crtc_gamma_set,
 272     .shadow_create = crtc_shadow_create,
 273     .shadow_allocate = crtc_shadow_allocate,
 274     .shadow_destroy = crtc_shadow_destroy,
 275     .set_cursor_position = crtc_set_cursor_position,
 276     .show_cursor = crtc_show_cursor,
 277     .hide_cursor = crtc_hide_cursor,
 278     .load_cursor_image = NULL,         /* lets convert to argb only */
 279     .set_cursor_colors = NULL,         /* using argb only */
 280     .load_cursor_argb = crtc_load_cursor_argb,
 281     .destroy = crtc_destroy,
 282 };
 283
 284 void
 285 crtc_cursor_destroy(xf86CrtcPtr crtc)
 286 {
 287     struct crtc_private *crtcp = crtc->driver_private;
 288
 289     if (crtcp->cursor_tex) {
 290         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 291     }
 292 }
 293
 294 void
 295 crtc_init(ScrnInfoPtr pScrn)
 296 {
 297     modesettingPtr ms = modesettingPTR(pScrn);
 298     xf86CrtcPtr crtc;
 299     drmModeResPtr res;
 300     drmModeCrtcPtr drm_crtc = NULL;
 301     struct crtc_private *crtcp;
 302     int c;
 303
 304     res = drmModeGetResources(ms->fd);
 305     if (res == 0) {
 306         ErrorF("Failed drmModeGetResources %d\n", errno);
 307         return;
 308     }
 309
 310     for (c = 0; c < res->count_crtcs; c++) {
 311         drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
 312         if (!drm_crtc)
 313             continue;
 314
 315         crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 316         if (crtc == NULL)
 317             goto out;
 318
 319         crtcp = xcalloc(1, sizeof(struct crtc_private));
 320         if (!crtcp) {
 321             xf86CrtcDestroy(crtc);
 322             goto out;
 323         }
 324
 325         crtcp->drm_crtc = drm_crtc;
 326
 327         crtc->driver_private = crtcp;
 328
 329     }
 330
 331   out:
 332     drmModeFreeResources(res);
 333 }
 334
 335 /* vim: set sw=4 ts=8 sts=4: */