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 }
 138
 139 static void *
 140 crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
 141 {
 142     return NULL;
 143 }
 144
 145 static PixmapPtr
 146 crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
 147 {
 148     return NULL;
 149 }
 150
 151 static void
 152 crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
 153 {
 154 }
 155
 156 /*
 157  * Cursor functions
 158  */
 159
 160 static void
 161 crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
 162 {
 163 }
 164
 165 static void
 166 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 167 {
 168     modesettingPtr ms = modesettingPTR(crtc->scrn);
 169     struct crtc_private *crtcp = crtc->driver_private;
 170
 171     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 172 }
 173 static void
 174 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 175 {
 176     unsigned char *ptr;
 177     modesettingPtr ms = modesettingPTR(crtc->scrn);
 178     struct crtc_private *crtcp = crtc->driver_private;
 179     struct pipe_transfer *transfer;
 180
 181     if (!crtcp->cursor_tex) {
 182         struct pipe_texture templat;
 183         unsigned pitch;
 184
 185         memset(&templat, 0, sizeof(templat));
 186         templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 187         templat.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 188         templat.target = PIPE_TEXTURE_2D;
 189         templat.last_level = 0;
 190         templat.depth[0] = 1;
 191         templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 192         templat.width[0] = 64;
 193         templat.height[0] = 64;
 194         pf_get_block(templat.format, &templat.block);
 195
 196         crtcp->cursor_tex = ms->screen->texture_create(ms->screen,
 197                                                        &templat);
 198         ms->api->local_handle_from_texture(ms->api,
 199                                            ms->screen,
 200                                            crtcp->cursor_tex,
 201                                            &pitch,
 202                                            &crtcp->cursor_handle);
 203     }
 204
 205     transfer = ms->screen->get_tex_transfer(ms->screen, crtcp->cursor_tex,
 206                                             0, 0, 0,
 207                                             PIPE_TRANSFER_WRITE,
 208                                             0, 0, 64, 64);
 209     ptr = ms->screen->transfer_map(ms->screen, transfer);
 210     util_copy_rect(ptr, &crtcp->cursor_tex->block,
 211                    transfer->stride, 0, 0,
 212                    64, 64, (void*)image, 64 * 4, 0, 0);
 213     ms->screen->transfer_unmap(ms->screen, transfer);
 214     ms->screen->tex_transfer_destroy(transfer);
 215 }
 216
 217 static void
 218 crtc_show_cursor(xf86CrtcPtr crtc)
 219 {
 220     modesettingPtr ms = modesettingPTR(crtc->scrn);
 221     struct crtc_private *crtcp = crtc->driver_private;
 222
 223     if (crtcp->cursor_tex)
 224         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 225                          crtcp->cursor_handle, 64, 64);
 226 }
 227
 228 static void
 229 crtc_hide_cursor(xf86CrtcPtr crtc)
 230 {
 231     modesettingPtr ms = modesettingPTR(crtc->scrn);
 232     struct crtc_private *crtcp = crtc->driver_private;
 233
 234     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 235 }
 236
 237 void
 238 crtc_cursor_destroy(xf86CrtcPtr crtc)
 239 {
 240     struct crtc_private *crtcp = crtc->driver_private;
 241
 242     if (crtcp->cursor_tex) {
 243         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 244     }
 245 }
 246
 247 /*
 248  * Misc functions
 249  */
 250
 251 static void
 252 crtc_destroy(xf86CrtcPtr crtc)
 253 {
 254     struct crtc_private *crtcp = crtc->driver_private;
 255
 256     if (crtcp->cursor_tex)
 257         pipe_texture_reference(&crtcp->cursor_tex, NULL);
 258
 259     drmModeFreeCrtc(crtcp->drm_crtc);
 260     xfree(crtcp);
 261 }
 262
 263 static const xf86CrtcFuncsRec crtc_funcs = {
 264     .dpms = crtc_dpms,
 265     .set_mode_major = crtc_set_mode_major,
 266
 267     .set_cursor_colors = crtc_set_cursor_colors,
 268     .set_cursor_position = crtc_set_cursor_position,
 269     .show_cursor = crtc_show_cursor,
 270     .hide_cursor = crtc_hide_cursor,
 271     .load_cursor_argb = crtc_load_cursor_argb,
 272
 273     .shadow_create = crtc_shadow_create,
 274     .shadow_allocate = crtc_shadow_allocate,
 275     .shadow_destroy = crtc_shadow_destroy,
 276
 277     .gamma_set = crtc_gamma_set,
 278     .destroy = crtc_destroy,
 279 };
 280
 281 void
 282 crtc_init(ScrnInfoPtr pScrn)
 283 {
 284     modesettingPtr ms = modesettingPTR(pScrn);
 285     xf86CrtcPtr crtc;
 286     drmModeResPtr res;
 287     drmModeCrtcPtr drm_crtc = NULL;
 288     struct crtc_private *crtcp;
 289     int c;
 290
 291     res = drmModeGetResources(ms->fd);
 292     if (res == 0) {
 293         ErrorF("Failed drmModeGetResources %d\n", errno);
 294         return;
 295     }
 296
 297     for (c = 0; c < res->count_crtcs; c++) {
 298         drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
 299
 300         if (!drm_crtc)
 301             continue;
 302
 303         crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 304         if (crtc == NULL)
 305             goto out;
 306
 307         crtcp = xcalloc(1, sizeof(struct crtc_private));
 308         if (!crtcp) {
 309             xf86CrtcDestroy(crtc);
 310             goto out;
 311         }
 312
 313         crtcp->drm_crtc = drm_crtc;
 314
 315         crtc->driver_private = crtcp;
 316     }
 317
 318   out:
 319     drmModeFreeResources(res);
 320 }
 321
 322 /* vim: set sw=4 ts=8 sts=4: */