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680 lines
17 KiB
680 lines
17 KiB
/*
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* Copyright © 2010 Raptor Engineering
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* Copyright © 2007 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "lowlevel_randr.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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Status internal_crtc_disable (struct CrtcInfo *crtc);
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char * internal_get_output_name (struct ScreenInfo *screen_info, RROutput id)
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{
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char *output_name = NULL;
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int i;
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for (i = 0; i < screen_info->n_output; i++) {
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if (id == screen_info->outputs[i]->id) {
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output_name = screen_info->outputs[i]->info->name;
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}
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}
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if (!output_name) {
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output_name = "Unknown";
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}
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return output_name;
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}
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XRRModeInfo * internal_find_mode_by_xid (struct ScreenInfo *screen_info, RRMode mode_id)
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{
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XRRModeInfo *mode_info = NULL;
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XRRScreenResources *res;
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int i;
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res = screen_info->res;
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for (i = 0; i < res->nmode; i++) {
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if (mode_id == res->modes[i].id) {
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mode_info = &res->modes[i];
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break;
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}
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}
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return mode_info;
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}
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static XRRCrtcInfo * internal_find_crtc_by_xid (struct ScreenInfo *screen_info, RRCrtc crtc_id)
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{
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XRRCrtcInfo *crtc_info;
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Display *dpy;
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XRRScreenResources *res;
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dpy = screen_info->dpy;
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res = screen_info->res;
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crtc_info = XRRGetCrtcInfo (dpy, res, crtc_id);
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return crtc_info;
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}
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int internal_get_width_by_output_id (struct ScreenInfo *screen_info, RROutput output_id)
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{
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struct OutputInfo *output_info;
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struct CrtcInfo *crtc_info;
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RRMode mode_id;
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XRRModeInfo *mode_info;
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int i;
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int width = -1;
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for (i = 0; i < screen_info->n_output; i++) {
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if (output_id == screen_info->outputs[i]->id) {
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crtc_info = screen_info->outputs[i]->cur_crtc;
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if (!crtc_info) {
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width = 0;
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break;
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}
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mode_id = crtc_info->cur_mode_id;
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mode_info = internal_find_mode_by_xid (screen_info, mode_id);
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width = internal_mode_width (mode_info, crtc_info->cur_rotation);
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break;
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}
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}
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return width;
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}
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int internal_get_height_by_output_id (struct ScreenInfo *screen_info, RROutput output_id)
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{
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struct OutputInfo *output_info;
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struct CrtcInfo *crtc_info;
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RRMode mode_id;
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XRRModeInfo *mode_info;
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int i;
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int height = -1;
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for (i = 0; i < screen_info->n_output; i++) {
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if (output_id == screen_info->outputs[i]->id) {
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crtc_info = screen_info->outputs[i]->cur_crtc;
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if (!crtc_info) {
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height = 0;
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break;
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}
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mode_id = crtc_info->cur_mode_id;
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mode_info = internal_find_mode_by_xid (screen_info, mode_id);
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height = internal_mode_height (mode_info, crtc_info->cur_rotation);
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break;
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}
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}
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return height;
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}
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int internal_mode_height (XRRModeInfo *mode_info, Rotation rotation)
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{
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switch (rotation & 0xf) {
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case RR_Rotate_0:
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case RR_Rotate_180:
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return mode_info->height;
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case RR_Rotate_90:
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case RR_Rotate_270:
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return mode_info->width;
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default:
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return 0;
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}
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}
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int internal_mode_width (XRRModeInfo *mode_info, Rotation rotation)
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{
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switch (rotation & 0xf) {
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case RR_Rotate_0:
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case RR_Rotate_180:
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return mode_info->width;
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case RR_Rotate_90:
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case RR_Rotate_270:
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return mode_info->height;
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default:
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return 0;
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}
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}
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static struct CrtcInfo * internal_find_crtc (struct ScreenInfo *screen_info, XRROutputInfo *output)
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{
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struct CrtcInfo *crtc_info = NULL;
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int i;
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for (i = 0; i < screen_info->n_crtc; i++) {
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if (screen_info->crtcs[i]->id == output->crtc) {
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crtc_info = screen_info->crtcs[i];
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break;
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}
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}
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return crtc_info;
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}
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struct CrtcInfo * internal_auto_find_crtc (struct ScreenInfo *screen_info, struct OutputInfo *output_info)
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{
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struct CrtcInfo *crtc_info = NULL;
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int i;
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for (i = 0; i < screen_info->n_crtc; i++) {
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if (0 == screen_info->crtcs[i]->cur_noutput) {
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crtc_info = screen_info->crtcs[i];
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break;
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}
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}
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if (NULL == crtc_info) {
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crtc_info = screen_info->crtcs[0];
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}
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return crtc_info;
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}
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int internal_set_screen_size (struct ScreenInfo *screen_info)
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{
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Display *dpy;
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int screen;
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struct CrtcInfo *crtc;
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XRRModeInfo *mode_info;
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int cur_x = 0, cur_y = 0;
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int w = 0, h = 0;
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int mmW, mmH;
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int max_width = 0, max_height = 0;
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int i;
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dpy = screen_info->dpy;
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screen = DefaultScreen (dpy);
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for (i = 0; i < screen_info->n_crtc; i++) {
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crtc = screen_info->crtcs[i];
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if (!crtc->cur_mode_id) {
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continue;
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}
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mode_info = internal_find_mode_by_xid (screen_info, crtc->cur_mode_id);
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cur_x = crtc->cur_x;
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cur_y = crtc->cur_y;
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w = internal_mode_width (mode_info, crtc->cur_rotation);
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h = internal_mode_height (mode_info, crtc->cur_rotation);
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if (cur_x + w > max_width) {
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max_width = cur_x + w;
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}
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if (cur_y + h > max_height) {
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max_height = cur_y + h;
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}
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}
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if (max_width > screen_info->max_width) {
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#if RANDR_GUI_DEBUG
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fprintf (stderr, "user set screen width %d, larger than max width %d, set to max width\n",
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cur_x + w, screen_info->max_width);
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#endif
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return 0;
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} else if (max_width < screen_info->min_width) {
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screen_info->cur_width = screen_info->min_width;
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} else {
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screen_info->cur_width = max_width;
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}
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if (max_height > screen_info->max_height) {
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#if RANDR_GUI_DEBUG
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fprintf (stderr, "user set screen height %d, larger than max height %d, set to max height\n",
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cur_y + h, screen_info->max_height);
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#endif
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return 0;
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} else if (max_height < screen_info->min_height) {
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screen_info->cur_height = screen_info->min_height;
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} else {
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screen_info->cur_height = max_height;
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}
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/* calculate mmWidth, mmHeight */
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if (screen_info->cur_width != DisplayWidth (dpy, screen) ||
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screen_info->cur_height != DisplayHeight (dpy, screen) ) {
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double dpi;
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dpi = (25.4 * DisplayHeight (dpy, screen)) / DisplayHeightMM(dpy, screen);
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mmW = (25.4 * screen_info->cur_width) / dpi;
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mmH = (25.4 * screen_info->cur_height) / dpi;
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} else {
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mmW = DisplayWidthMM (dpy, screen);
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mmH = DisplayHeightMM (dpy, screen);
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}
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screen_info->cur_mmWidth = mmW;
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screen_info->cur_mmHeight = mmH;
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return 1;
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}
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void internal_screen_apply (struct ScreenInfo *screen_info)
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{
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int width, height;
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int mmWidth, mmHeight;
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Display *dpy, *cur_dpy;
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Window window;
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int screen;
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static int first = 1;
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width = screen_info->cur_width;
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height = screen_info->cur_height;
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mmWidth = screen_info->cur_mmWidth;
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mmHeight = screen_info->cur_mmHeight;
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dpy = screen_info->dpy;
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window = screen_info->window;
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screen = DefaultScreen (dpy);
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cur_dpy = XOpenDisplay (NULL);
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if (width == DisplayWidth (cur_dpy, screen) &&
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height == DisplayHeight (cur_dpy, screen) &&
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mmWidth == DisplayWidthMM (cur_dpy, screen) &&
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mmHeight == DisplayHeightMM (cur_dpy, screen) ) {
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return;
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} else {
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XRRSetScreenSize (dpy, window, width, height, mmWidth, mmHeight);
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}
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}
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Status internal_crtc_apply (struct CrtcInfo *crtc_info)
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{
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struct ScreenInfo *screen_info;
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XRRCrtcInfo *rr_crtc_info;
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Display *dpy;
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XRRScreenResources *res;
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RRCrtc crtc_id;
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int x, y;
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RRMode mode_id;
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Rotation rotation;
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RROutput *outputs;
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int noutput;
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Status s;
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int i;
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/*if (!crtc_info->changed) {
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return RRSetConfigSuccess;
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}*/
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screen_info = crtc_info->screen_info;
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dpy = screen_info->dpy;
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res = screen_info->res;
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crtc_id = crtc_info->id;
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x = crtc_info->cur_x;
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y = crtc_info->cur_y;
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mode_id = crtc_info->cur_mode_id;
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rotation = crtc_info->cur_rotation;
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noutput = crtc_info->cur_noutput;
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if (0 == noutput) {
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return internal_crtc_disable (crtc_info);
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}
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outputs = malloc (sizeof (RROutput) * noutput);
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noutput = 0;
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for (i = 0; i < screen_info->n_output; i++) {
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struct OutputInfo *output_info = screen_info->outputs[i];
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if (output_info->cur_crtc && crtc_id == output_info->cur_crtc->id) {
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outputs[noutput++] = output_info->id;
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}
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}
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s = XRRSetCrtcConfig (dpy, res, crtc_id, CurrentTime,
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x, y, mode_id, rotation,
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outputs, noutput);
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if (RRSetConfigSuccess == s) {
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crtc_info->changed = 0;
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}
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free (outputs);
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return s;
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}
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Status internal_crtc_disable (struct CrtcInfo *crtc)
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{
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struct ScreenInfo *screen_info;
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screen_info = crtc->screen_info;
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return XRRSetCrtcConfig (screen_info->dpy, screen_info->res, crtc->id, CurrentTime,
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0, 0, None, RR_Rotate_0, NULL, 0);
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}
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struct ScreenInfo* internal_read_screen_info (Display *display)
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{
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struct ScreenInfo *screen_info;
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int screen_num;
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Window root_window;
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XRRScreenResources *sr;
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int i;
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screen_num = DefaultScreen (display);
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root_window = RootWindow (display, screen_num);
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sr = XRRGetScreenResources (display, root_window);
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if (sr == NULL) {
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return NULL;
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}
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screen_info = malloc (sizeof (struct ScreenInfo));
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screen_info->dpy = display;
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screen_info->window = root_window;
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screen_info->res = sr;
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screen_info->cur_width = DisplayWidth (display, screen_num);
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screen_info->cur_height = DisplayHeight (display, screen_num);
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screen_info->cur_mmWidth = DisplayWidthMM (display, screen_num);
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screen_info->cur_mmHeight = DisplayHeightMM (display, screen_num);
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screen_info->n_output = sr->noutput;
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screen_info->n_crtc = sr->ncrtc;
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screen_info->outputs = malloc (sizeof (struct OutputInfo *) * sr->noutput);
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screen_info->crtcs = malloc (sizeof (struct CrtcInfo *) * sr->ncrtc);
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screen_info->clone = 0;
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XRRGetScreenSizeRange (display, root_window, &screen_info->min_width, &screen_info->min_height, &screen_info->max_width, &screen_info->max_height);
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/* get crtc */
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for (i = 0; i < sr->ncrtc; i++) {
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struct CrtcInfo *crtc_info;
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screen_info->crtcs[i] = malloc (sizeof (struct CrtcInfo));
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crtc_info = screen_info->crtcs[i];
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XRRCrtcInfo *xrr_crtc_info = XRRGetCrtcInfo (display, sr, sr->crtcs[i]);
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crtc_info->id = sr->crtcs[i];
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crtc_info->info = xrr_crtc_info;
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crtc_info->cur_x = xrr_crtc_info->x;
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crtc_info->cur_y = xrr_crtc_info->y;
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crtc_info->cur_mode_id = xrr_crtc_info->mode;
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crtc_info->cur_rotation = xrr_crtc_info->rotation;
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crtc_info->rotations = xrr_crtc_info->rotations;
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crtc_info->cur_noutput = xrr_crtc_info->noutput;
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crtc_info->changed = 0;
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crtc_info->screen_info = screen_info;
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}
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/* get output */
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for (i = 0; i < sr->noutput; i++) {
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struct OutputInfo *output;
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screen_info->outputs[i] = malloc (sizeof (struct OutputInfo));
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output = screen_info->outputs[i];
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output->id = sr->outputs[i];
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output->info = XRRGetOutputInfo (display, sr, sr->outputs[i]);
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output->cur_crtc = internal_find_crtc (screen_info, output->info);
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output->auto_set = 0;
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if (output->cur_crtc) {
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output->off_set = 0;
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} else {
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output->off_set = 1;
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}
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}
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/* set current crtc */
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screen_info->cur_crtc = screen_info->outputs[0]->cur_crtc;
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screen_info->primary_crtc = screen_info->cur_crtc;
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screen_info->cur_output = screen_info->outputs[0];
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return screen_info;
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}
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void internal_free_screen_info (struct ScreenInfo *screen_info)
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{
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free (screen_info->outputs);
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free (screen_info->crtcs);
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free (screen_info);
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}
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/*check if other outputs that connected to the same crtc support this mode*/
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static int internal_check_mode (struct ScreenInfo *screen_info, struct OutputInfo *output, RRMode mode_id)
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{
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XRRCrtcInfo *crtc_info;
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/* XRR */
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int i, j;
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int mode_ok = 1;
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if (!output->cur_crtc) {
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return 1;
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}
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crtc_info = output->cur_crtc->info;
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for (i = 0; i < crtc_info->noutput; i++) {
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XRROutputInfo *output_info;
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int nmode;
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if (output->id == crtc_info->outputs[i]) {
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continue;
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}
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mode_ok = 0;
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output_info = XRRGetOutputInfo (screen_info->dpy, screen_info->res, crtc_info->outputs[i]);
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nmode = output_info->nmode;
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for (j = 0; j < nmode; j++) {
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if (mode_id == output_info->modes[j]) {
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mode_ok = 1;
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break;
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}
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}
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if (!mode_ok) {
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break;
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}
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}
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return mode_ok;
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}
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static RRCrtc internal_get_crtc_id_by_output_id (struct ScreenInfo *screen_info, RROutput output_id)
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{
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int i;
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RRCrtc crtc_id = -1;
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for (i = 0; i < screen_info->n_output; i++) {
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if (output_id == screen_info->outputs[i]->id) {
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if (screen_info->outputs[i]->cur_crtc) {
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crtc_id = screen_info->outputs[i]->cur_crtc->id;
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} else {
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crtc_id = 0; /* this output is off */
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}
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break;
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}
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}
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return crtc_id;
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}
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static struct CrtcInfo *
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internal_get_crtc_info_by_xid (struct ScreenInfo *screen_info, RRCrtc crtc_id)
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{
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struct CrtcInfo *crtc_info = NULL;
|
|
int i;
|
|
|
|
for (i = 0; i < screen_info->n_crtc; i++) {
|
|
if (crtc_id == screen_info->crtcs[i]->id) {
|
|
crtc_info = screen_info->crtcs[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
return crtc_info;
|
|
}
|
|
|
|
static XRRModeInfo *
|
|
internal_preferred_mode (struct ScreenInfo *screen_info, struct OutputInfo *output)
|
|
{
|
|
XRROutputInfo *output_info = output->info;
|
|
Display *dpy;
|
|
int screen;
|
|
int m;
|
|
XRRModeInfo *best;
|
|
int bestDist;
|
|
|
|
dpy = screen_info->dpy;
|
|
screen = DefaultScreen (dpy);
|
|
best = NULL;
|
|
bestDist = 0;
|
|
for (m = 0; m < output_info->nmode; m++) {
|
|
XRRModeInfo *mode_info = internal_find_mode_by_xid (screen_info, output_info->modes[m]);
|
|
int dist;
|
|
|
|
if (m < output_info->npreferred)
|
|
dist = 0;
|
|
else if (output_info->mm_height)
|
|
dist = (1000 * DisplayHeight(dpy, screen) / DisplayHeightMM(dpy, screen) -
|
|
1000 * mode_info->height / output_info->mm_height);
|
|
else
|
|
dist = DisplayHeight(dpy, screen) - mode_info->height;
|
|
|
|
if (dist < 0) dist = -dist;
|
|
if (!best || dist < bestDist) {
|
|
best = mode_info;
|
|
bestDist = dist;
|
|
}
|
|
}
|
|
return best;
|
|
}
|
|
|
|
int internal_main_low_apply (struct ScreenInfo *screen_info)
|
|
{
|
|
int i;
|
|
struct CrtcInfo *crtc_info;
|
|
|
|
/* set_positions (screen_info); */
|
|
|
|
if (!internal_set_screen_size (screen_info)) {
|
|
printf("Screen Size FAILURE\n\r");
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < screen_info->n_crtc; i++) {
|
|
int old_x, old_y, old_w, old_h;
|
|
|
|
XRRCrtcInfo *crtc_info = XRRGetCrtcInfo (screen_info->dpy, screen_info->res, screen_info->crtcs[i]->id);
|
|
XRRModeInfo *old_mode = internal_find_mode_by_xid (screen_info, crtc_info->mode);
|
|
|
|
if (crtc_info->mode == None) {
|
|
continue;
|
|
}
|
|
|
|
old_x = crtc_info->x;
|
|
old_y = crtc_info->y;
|
|
old_w = internal_mode_width (old_mode, crtc_info->rotation);
|
|
old_h = internal_mode_height (old_mode, crtc_info->rotation);
|
|
|
|
if (old_x + old_w <= screen_info->cur_width &&
|
|
old_y + old_h <= screen_info->cur_height ) {
|
|
continue;
|
|
} else {
|
|
internal_crtc_disable (screen_info->crtcs[i]);
|
|
}
|
|
}
|
|
|
|
internal_screen_apply (screen_info);
|
|
|
|
for (i = 0; i < screen_info->n_crtc; i++) {
|
|
Status s;
|
|
crtc_info = screen_info->crtcs[i];
|
|
|
|
s = internal_crtc_apply (crtc_info);
|
|
if (RRSetConfigSuccess != s) {
|
|
fprintf (stderr, "crtc apply error\n");
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void internal_output_auto (struct ScreenInfo *screen_info, struct OutputInfo *output_info)
|
|
{
|
|
XRRModeInfo *mode_info;
|
|
RRMode mode_id;
|
|
struct CrtcInfo *crtc_info;
|
|
XRROutputInfo *probe_output_info;
|
|
|
|
if (RR_Disconnected == output_info->info->connection) {
|
|
XRRScreenResources *cur_res;
|
|
|
|
cur_res = XRRGetScreenResources (screen_info->dpy, screen_info->window);
|
|
probe_output_info = XRRGetOutputInfo (screen_info->dpy, cur_res, output_info->id);
|
|
if (RR_Disconnected != probe_output_info->connection) {
|
|
output_info->info = probe_output_info;
|
|
output_info->cur_crtc = internal_auto_find_crtc (screen_info, output_info);
|
|
}
|
|
}
|
|
|
|
mode_info = internal_preferred_mode (screen_info, output_info);
|
|
if (!mode_info) {
|
|
return;
|
|
}
|
|
mode_id = mode_info->id;
|
|
|
|
crtc_info = output_info->cur_crtc;
|
|
if (crtc_info) {
|
|
crtc_info->cur_mode_id = mode_id;
|
|
} else {
|
|
crtc_info = internal_auto_find_crtc (screen_info, output_info);
|
|
if (!crtc_info) {
|
|
#if RANDR_GUI_DEBUG
|
|
fprintf (stderr, "Can not find usable CRTC\n");
|
|
#endif
|
|
return;
|
|
} else {
|
|
screen_info->cur_output->cur_crtc = crtc_info;
|
|
screen_info->cur_crtc = crtc_info;
|
|
screen_info->cur_crtc->cur_noutput++;
|
|
fprintf (stderr, "n output: %d\n", screen_info->cur_crtc->cur_noutput);
|
|
screen_info->cur_crtc->cur_mode_id = mode_id;
|
|
screen_info->cur_crtc->changed = 1;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void internal_output_off (struct ScreenInfo *screen_info, struct OutputInfo *output)
|
|
{
|
|
if (output->cur_crtc) {
|
|
output->cur_crtc->cur_noutput--;
|
|
}
|
|
output->cur_crtc = NULL;
|
|
screen_info->cur_crtc = NULL;
|
|
output->off_set = 1;
|
|
}
|
|
|
|
void internal_output_set_primary (struct ScreenInfo *screen_info, RROutput output_id)
|
|
{
|
|
XRRSetOutputPrimary(screen_info->dpy, screen_info->window, output_id);
|
|
} |