Implemented SDL_GetDisplayName() for X11, which requires the XRandR extension.
It turns out there's all kinds of good information in the EDID data for a monitor...
This commit is contained in:
Sam Lantinga
parent
290bbdda14
commit
1610041e3c
5 changed files with 993 additions and 2 deletions
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@ -674,7 +674,7 @@ SDLTest_CommonInit(SDLTest_CommonState * state)
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n = SDL_GetNumVideoDisplays();
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fprintf(stderr, "Number of displays: %d\n", n);
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for (i = 0; i < n; ++i) {
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fprintf(stderr, "Display %d:\n", i);
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fprintf(stderr, "Display %d: %s\n", i, SDL_GetDisplayName(i));
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SDL_zero(bounds);
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SDL_GetDisplayBounds(i, &bounds);
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@ -24,6 +24,7 @@
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#include "SDL_hints.h"
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#include "SDL_x11video.h"
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#include "edid.h"
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/*#define X11MODES_DEBUG*/
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@ -34,8 +35,10 @@
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* I can find. For example, on Unity 3D if you show a fullscreen window while
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* the resolution is changing (within ~250 ms) your window will retain the
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* fullscreen state hint but be decorated and windowed.
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*
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* However, many people swear by it, so let them swear at it. :)
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*/
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#define XRANDR_DISABLED_BY_DEFAULT
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/*#define XRANDR_DISABLED_BY_DEFAULT*/
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static int
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@ -427,6 +430,7 @@ X11_InitModes(_THIS)
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SDL_DisplayMode mode;
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SDL_DisplayModeData *modedata;
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XPixmapFormatValues *pixmapFormats;
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char display_name[128];
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int i, n;
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#if SDL_VIDEO_DRIVER_X11_XINERAMA
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@ -449,6 +453,7 @@ X11_InitModes(_THIS)
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if (!displaydata) {
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continue;
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}
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display_name[0] = '\0';
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mode.format = X11_GetPixelFormatFromVisualInfo(data->display, &vinfo);
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if (SDL_ISPIXELFORMAT_INDEXED(mode.format)) {
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@ -527,6 +532,12 @@ X11_InitModes(_THIS)
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XRROutputInfo *output_info;
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XRRCrtcInfo *crtc;
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int output;
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Atom EDID = XInternAtom(data->display, "EDID", False);
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Atom *props;
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int nprop;
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unsigned long width_mm;
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unsigned long height_mm;
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int inches = 0;
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for (output = 0; output < res->noutput; output++) {
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output_info = XRRGetOutputInfo(data->display, res, res->outputs[output]);
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@ -551,6 +562,49 @@ X11_InitModes(_THIS)
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displaydata->xrandr_output = res->outputs[output];
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SetXRandRModeInfo(data->display, res, output_info, crtc->mode, &mode);
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/* Get the name of this display */
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width_mm = output_info->mm_width;
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height_mm = output_info->mm_height;
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inches = (int)((sqrt(width_mm * width_mm +
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height_mm * height_mm) / 25.4f) + 0.5f);
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SDL_strlcpy(display_name, output_info->name, sizeof(display_name));
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/* See if we can get the EDID data for the real monitor name */
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props = XRRListOutputProperties(data->display, res->outputs[output], &nprop);
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for (i = 0; i < nprop; ++i) {
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unsigned char *prop;
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int actual_format;
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unsigned long nitems, bytes_after;
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Atom actual_type;
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if (props[i] == EDID) {
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XRRGetOutputProperty(data->display, res->outputs[output], props[i],
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0, 100, False, False,
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AnyPropertyType,
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&actual_type, &actual_format,
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&nitems, &bytes_after, &prop);
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MonitorInfo *info = decode_edid(prop);
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if (info) {
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#ifdef X11MODES_DEBUG
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printf("Found EDID data for %s\n", output_info->name);
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dump_monitor_info(info);
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#endif
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SDL_strlcpy(display_name, info->dsc_product_name, sizeof(display_name));
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free(info);
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}
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break;
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}
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}
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if (*display_name && inches) {
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size_t len = SDL_strlen(display_name);
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SDL_snprintf(&display_name[len], sizeof(display_name)-len, " %d\"", inches);
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}
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#ifdef X11MODES_DEBUG
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printf("Display name: %s\n", display_name);
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#endif
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XRRFreeOutputInfo(output_info);
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XRRFreeCrtcInfo(crtc);
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break;
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@ -583,6 +637,9 @@ X11_InitModes(_THIS)
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#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
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SDL_zero(display);
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if (*display_name) {
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display.name = display_name;
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}
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display.desktop_mode = mode;
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display.current_mode = mode;
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display.driverdata = displaydata;
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@ -265,6 +265,9 @@ SDL_X11_SYM(void,XRRFreeOutputInfo,(XRROutputInfo *outputInfo),(outputInfo),)
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SDL_X11_SYM(XRRCrtcInfo *,XRRGetCrtcInfo,(Display *dpy, XRRScreenResources *resources, RRCrtc crtc),(dpy,resources,crtc),return)
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SDL_X11_SYM(void,XRRFreeCrtcInfo,(XRRCrtcInfo *crtcInfo),(crtcInfo),)
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SDL_X11_SYM(Status,XRRSetCrtcConfig,(Display *dpy, XRRScreenResources *resources, RRCrtc crtc, Time timestamp, int x, int y, RRMode mode, Rotation rotation, RROutput *outputs, int noutputs),(dpy,resources,crtc,timestamp,x,y,mode,rotation,outputs,noutputs),return)
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SDL_X11_SYM(Atom*,XRRListOutputProperties,(Display *dpy, RROutput output, int *nprop),(dpy,output,nprop),return)
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SDL_X11_SYM(XRRPropertyInfo*,XRRQueryOutputProperty,(Display *dpy,RROutput output, Atom property),(dpy,output,property),return)
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SDL_X11_SYM(int,XRRGetOutputProperty,(Display *dpy,RROutput output, Atom property, long offset, long length, Bool _delete, Bool pending, Atom req_type, Atom *actual_type, int *actual_format, unsigned long *nitems, unsigned long *bytes_after, unsigned char **prop),(dpy,output,property,offset,length, _delete, pending, req_type, actual_type, actual_format, nitems, bytes_after, prop),return)
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#endif
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/* MIT-SCREEN-SAVER support */
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760
src/video/x11/edid-parse.c
Normal file
760
src/video/x11/edid-parse.c
Normal file
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@ -0,0 +1,760 @@
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/*
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* Copyright 2007 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is 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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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 NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* Author: Soren Sandmann <sandmann@redhat.com> */
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#include "edid.h"
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#define TRUE 1
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#define FALSE 0
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static int
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get_bit (int in, int bit)
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{
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return (in & (1 << bit)) >> bit;
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}
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static int
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get_bits (int in, int begin, int end)
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{
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int mask = (1 << (end - begin + 1)) - 1;
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return (in >> begin) & mask;
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}
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static int
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decode_header (const uchar *edid)
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{
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if (memcmp (edid, "\x00\xff\xff\xff\xff\xff\xff\x00", 8) == 0)
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return TRUE;
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return FALSE;
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}
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static int
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decode_vendor_and_product_identification (const uchar *edid, MonitorInfo *info)
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{
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int is_model_year;
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/* Manufacturer Code */
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info->manufacturer_code[0] = get_bits (edid[0x08], 2, 6);
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info->manufacturer_code[1] = get_bits (edid[0x08], 0, 1) << 3;
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info->manufacturer_code[1] |= get_bits (edid[0x09], 5, 7);
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info->manufacturer_code[2] = get_bits (edid[0x09], 0, 4);
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info->manufacturer_code[3] = '\0';
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info->manufacturer_code[0] += 'A' - 1;
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info->manufacturer_code[1] += 'A' - 1;
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info->manufacturer_code[2] += 'A' - 1;
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/* Product Code */
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info->product_code = edid[0x0b] << 8 | edid[0x0a];
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/* Serial Number */
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info->serial_number =
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edid[0x0c] | edid[0x0d] << 8 | edid[0x0e] << 16 | edid[0x0f] << 24;
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/* Week and Year */
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is_model_year = FALSE;
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switch (edid[0x10])
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{
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case 0x00:
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info->production_week = -1;
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break;
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case 0xff:
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info->production_week = -1;
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is_model_year = TRUE;
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break;
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default:
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info->production_week = edid[0x10];
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break;
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}
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if (is_model_year)
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{
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info->production_year = -1;
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info->model_year = 1990 + edid[0x11];
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}
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else
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{
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info->production_year = 1990 + edid[0x11];
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info->model_year = -1;
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}
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return TRUE;
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}
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static int
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decode_edid_version (const uchar *edid, MonitorInfo *info)
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{
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info->major_version = edid[0x12];
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info->minor_version = edid[0x13];
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return TRUE;
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}
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static int
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decode_display_parameters (const uchar *edid, MonitorInfo *info)
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{
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/* Digital vs Analog */
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info->is_digital = get_bit (edid[0x14], 7);
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if (info->is_digital)
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{
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int bits;
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static const int bit_depth[8] =
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{
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-1, 6, 8, 10, 12, 14, 16, -1
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};
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static const Interface interfaces[6] =
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{
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UNDEFINED, DVI, HDMI_A, HDMI_B, MDDI, DISPLAY_PORT
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};
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bits = get_bits (edid[0x14], 4, 6);
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info->digital.bits_per_primary = bit_depth[bits];
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bits = get_bits (edid[0x14], 0, 3);
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if (bits <= 5)
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info->digital.interface = interfaces[bits];
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else
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info->digital.interface = UNDEFINED;
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}
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else
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{
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int bits = get_bits (edid[0x14], 5, 6);
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static const double levels[][3] =
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{
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{ 0.7, 0.3, 1.0 },
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{ 0.714, 0.286, 1.0 },
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{ 1.0, 0.4, 1.4 },
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{ 0.7, 0.0, 0.7 },
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};
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info->analog.video_signal_level = levels[bits][0];
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info->analog.sync_signal_level = levels[bits][1];
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info->analog.total_signal_level = levels[bits][2];
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info->analog.blank_to_black = get_bit (edid[0x14], 4);
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info->analog.separate_hv_sync = get_bit (edid[0x14], 3);
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info->analog.composite_sync_on_h = get_bit (edid[0x14], 2);
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info->analog.composite_sync_on_green = get_bit (edid[0x14], 1);
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info->analog.serration_on_vsync = get_bit (edid[0x14], 0);
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}
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/* Screen Size / Aspect Ratio */
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if (edid[0x15] == 0 && edid[0x16] == 0)
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{
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info->width_mm = -1;
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info->height_mm = -1;
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info->aspect_ratio = -1.0;
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}
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else if (edid[0x16] == 0)
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{
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info->width_mm = -1;
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info->height_mm = -1;
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info->aspect_ratio = 100.0 / (edid[0x15] + 99);
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}
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else if (edid[0x15] == 0)
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{
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info->width_mm = -1;
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info->height_mm = -1;
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info->aspect_ratio = 100.0 / (edid[0x16] + 99);
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info->aspect_ratio = 1/info->aspect_ratio; /* portrait */
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}
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else
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{
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info->width_mm = 10 * edid[0x15];
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info->height_mm = 10 * edid[0x16];
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}
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/* Gamma */
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if (edid[0x17] == 0xFF)
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info->gamma = -1.0;
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else
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info->gamma = (edid[0x17] + 100.0) / 100.0;
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/* Features */
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info->standby = get_bit (edid[0x18], 7);
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info->suspend = get_bit (edid[0x18], 6);
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info->active_off = get_bit (edid[0x18], 5);
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if (info->is_digital)
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{
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info->digital.rgb444 = TRUE;
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if (get_bit (edid[0x18], 3))
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info->digital.ycrcb444 = 1;
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if (get_bit (edid[0x18], 4))
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info->digital.ycrcb422 = 1;
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}
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else
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{
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int bits = get_bits (edid[0x18], 3, 4);
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ColorType color_type[4] =
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{
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MONOCHROME, RGB, OTHER_COLOR, UNDEFINED_COLOR
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};
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info->analog.color_type = color_type[bits];
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}
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info->srgb_is_standard = get_bit (edid[0x18], 2);
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/* In 1.3 this is called "has preferred timing" */
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info->preferred_timing_includes_native = get_bit (edid[0x18], 1);
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/* FIXME: In 1.3 this indicates whether the monitor accepts GTF */
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info->continuous_frequency = get_bit (edid[0x18], 0);
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return TRUE;
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}
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static double
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decode_fraction (int high, int low)
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{
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double result = 0.0;
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int i;
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high = (high << 2) | low;
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for (i = 0; i < 10; ++i)
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result += get_bit (high, i) * pow (2, i - 10);
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return result;
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}
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static int
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decode_color_characteristics (const uchar *edid, MonitorInfo *info)
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{
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info->red_x = decode_fraction (edid[0x1b], get_bits (edid[0x19], 6, 7));
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info->red_y = decode_fraction (edid[0x1c], get_bits (edid[0x19], 5, 4));
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info->green_x = decode_fraction (edid[0x1d], get_bits (edid[0x19], 2, 3));
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info->green_y = decode_fraction (edid[0x1e], get_bits (edid[0x19], 0, 1));
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info->blue_x = decode_fraction (edid[0x1f], get_bits (edid[0x1a], 6, 7));
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info->blue_y = decode_fraction (edid[0x20], get_bits (edid[0x1a], 4, 5));
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info->white_x = decode_fraction (edid[0x21], get_bits (edid[0x1a], 2, 3));
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info->white_y = decode_fraction (edid[0x22], get_bits (edid[0x1a], 0, 1));
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return TRUE;
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}
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static int
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decode_established_timings (const uchar *edid, MonitorInfo *info)
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{
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static const Timing established[][8] =
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{
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{
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{ 800, 600, 60 },
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{ 800, 600, 56 },
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{ 640, 480, 75 },
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{ 640, 480, 72 },
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{ 640, 480, 67 },
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{ 640, 480, 60 },
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{ 720, 400, 88 },
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{ 720, 400, 70 }
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},
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{
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{ 1280, 1024, 75 },
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{ 1024, 768, 75 },
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{ 1024, 768, 70 },
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{ 1024, 768, 60 },
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{ 1024, 768, 87 },
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{ 832, 624, 75 },
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{ 800, 600, 75 },
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{ 800, 600, 72 }
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},
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{
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{ 0, 0, 0 },
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{ 0, 0, 0 },
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{ 0, 0, 0 },
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{ 0, 0, 0 },
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{ 0, 0, 0 },
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{ 0, 0, 0 },
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{ 0, 0, 0 },
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{ 1152, 870, 75 }
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},
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};
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int i, j, idx;
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idx = 0;
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for (i = 0; i < 3; ++i)
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{
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for (j = 0; j < 8; ++j)
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{
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int byte = edid[0x23 + i];
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|
||||
if (get_bit (byte, j) && established[i][j].frequency != 0)
|
||||
info->established[idx++] = established[i][j];
|
||||
}
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int
|
||||
decode_standard_timings (const uchar *edid, MonitorInfo *info)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < 8; i++)
|
||||
{
|
||||
int first = edid[0x26 + 2 * i];
|
||||
int second = edid[0x27 + 2 * i];
|
||||
|
||||
if (first != 0x01 && second != 0x01)
|
||||
{
|
||||
int w = 8 * (first + 31);
|
||||
int h;
|
||||
|
||||
switch (get_bits (second, 6, 7))
|
||||
{
|
||||
case 0x00: h = (w / 16) * 10; break;
|
||||
case 0x01: h = (w / 4) * 3; break;
|
||||
case 0x02: h = (w / 5) * 4; break;
|
||||
case 0x03: h = (w / 16) * 9; break;
|
||||
}
|
||||
|
||||
info->standard[i].width = w;
|
||||
info->standard[i].height = h;
|
||||
info->standard[i].frequency = get_bits (second, 0, 5) + 60;
|
||||
}
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
decode_lf_string (const uchar *s, int n_chars, char *result)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < n_chars; ++i)
|
||||
{
|
||||
if (s[i] == 0x0a)
|
||||
{
|
||||
*result++ = '\0';
|
||||
break;
|
||||
}
|
||||
else if (s[i] == 0x00)
|
||||
{
|
||||
/* Convert embedded 0's to spaces */
|
||||
*result++ = ' ';
|
||||
}
|
||||
else
|
||||
{
|
||||
*result++ = s[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
decode_display_descriptor (const uchar *desc,
|
||||
MonitorInfo *info)
|
||||
{
|
||||
switch (desc[0x03])
|
||||
{
|
||||
case 0xFC:
|
||||
decode_lf_string (desc + 5, 13, info->dsc_product_name);
|
||||
break;
|
||||
case 0xFF:
|
||||
decode_lf_string (desc + 5, 13, info->dsc_serial_number);
|
||||
break;
|
||||
case 0xFE:
|
||||
decode_lf_string (desc + 5, 13, info->dsc_string);
|
||||
break;
|
||||
case 0xFD:
|
||||
/* Range Limits */
|
||||
break;
|
||||
case 0xFB:
|
||||
/* Color Point */
|
||||
break;
|
||||
case 0xFA:
|
||||
/* Timing Identifications */
|
||||
break;
|
||||
case 0xF9:
|
||||
/* Color Management */
|
||||
break;
|
||||
case 0xF8:
|
||||
/* Timing Codes */
|
||||
break;
|
||||
case 0xF7:
|
||||
/* Established Timings */
|
||||
break;
|
||||
case 0x10:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
decode_detailed_timing (const uchar *timing,
|
||||
DetailedTiming *detailed)
|
||||
{
|
||||
int bits;
|
||||
StereoType stereo[] =
|
||||
{
|
||||
NO_STEREO, NO_STEREO, FIELD_RIGHT, FIELD_LEFT,
|
||||
TWO_WAY_RIGHT_ON_EVEN, TWO_WAY_LEFT_ON_EVEN,
|
||||
FOUR_WAY_INTERLEAVED, SIDE_BY_SIDE
|
||||
};
|
||||
|
||||
detailed->pixel_clock = (timing[0x00] | timing[0x01] << 8) * 10000;
|
||||
detailed->h_addr = timing[0x02] | ((timing[0x04] & 0xf0) << 4);
|
||||
detailed->h_blank = timing[0x03] | ((timing[0x04] & 0x0f) << 8);
|
||||
detailed->v_addr = timing[0x05] | ((timing[0x07] & 0xf0) << 4);
|
||||
detailed->v_blank = timing[0x06] | ((timing[0x07] & 0x0f) << 8);
|
||||
detailed->h_front_porch = timing[0x08] | get_bits (timing[0x0b], 6, 7) << 8;
|
||||
detailed->h_sync = timing[0x09] | get_bits (timing[0x0b], 4, 5) << 8;
|
||||
detailed->v_front_porch =
|
||||
get_bits (timing[0x0a], 4, 7) | get_bits (timing[0x0b], 2, 3) << 4;
|
||||
detailed->v_sync =
|
||||
get_bits (timing[0x0a], 0, 3) | get_bits (timing[0x0b], 0, 1) << 4;
|
||||
detailed->width_mm = timing[0x0c] | get_bits (timing[0x0e], 4, 7) << 8;
|
||||
detailed->height_mm = timing[0x0d] | get_bits (timing[0x0e], 0, 3) << 8;
|
||||
detailed->right_border = timing[0x0f];
|
||||
detailed->top_border = timing[0x10];
|
||||
|
||||
detailed->interlaced = get_bit (timing[0x11], 7);
|
||||
|
||||
/* Stereo */
|
||||
bits = get_bits (timing[0x11], 5, 6) << 1 | get_bit (timing[0x11], 0);
|
||||
detailed->stereo = stereo[bits];
|
||||
|
||||
/* Sync */
|
||||
bits = timing[0x11];
|
||||
|
||||
detailed->digital_sync = get_bit (bits, 4);
|
||||
if (detailed->digital_sync)
|
||||
{
|
||||
detailed->digital.composite = !get_bit (bits, 3);
|
||||
|
||||
if (detailed->digital.composite)
|
||||
{
|
||||
detailed->digital.serrations = get_bit (bits, 2);
|
||||
detailed->digital.negative_vsync = FALSE;
|
||||
}
|
||||
else
|
||||
{
|
||||
detailed->digital.serrations = FALSE;
|
||||
detailed->digital.negative_vsync = !get_bit (bits, 2);
|
||||
}
|
||||
|
||||
detailed->digital.negative_hsync = !get_bit (bits, 0);
|
||||
}
|
||||
else
|
||||
{
|
||||
detailed->analog.bipolar = get_bit (bits, 3);
|
||||
detailed->analog.serrations = get_bit (bits, 2);
|
||||
detailed->analog.sync_on_green = !get_bit (bits, 1);
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
decode_descriptors (const uchar *edid, MonitorInfo *info)
|
||||
{
|
||||
int i;
|
||||
int timing_idx;
|
||||
|
||||
timing_idx = 0;
|
||||
|
||||
for (i = 0; i < 4; ++i)
|
||||
{
|
||||
int index = 0x36 + i * 18;
|
||||
|
||||
if (edid[index + 0] == 0x00 && edid[index + 1] == 0x00)
|
||||
{
|
||||
decode_display_descriptor (edid + index, info);
|
||||
}
|
||||
else
|
||||
{
|
||||
decode_detailed_timing (
|
||||
edid + index, &(info->detailed_timings[timing_idx++]));
|
||||
}
|
||||
}
|
||||
|
||||
info->n_detailed_timings = timing_idx;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
decode_check_sum (const uchar *edid,
|
||||
MonitorInfo *info)
|
||||
{
|
||||
int i;
|
||||
uchar check = 0;
|
||||
|
||||
for (i = 0; i < 128; ++i)
|
||||
check += edid[i];
|
||||
|
||||
info->checksum = check;
|
||||
}
|
||||
|
||||
MonitorInfo *
|
||||
decode_edid (const uchar *edid)
|
||||
{
|
||||
MonitorInfo *info = calloc (1, sizeof (MonitorInfo));
|
||||
|
||||
decode_check_sum (edid, info);
|
||||
|
||||
if (!decode_header (edid))
|
||||
return NULL;
|
||||
|
||||
if (!decode_vendor_and_product_identification (edid, info))
|
||||
return NULL;
|
||||
|
||||
if (!decode_edid_version (edid, info))
|
||||
return NULL;
|
||||
|
||||
if (!decode_display_parameters (edid, info))
|
||||
return NULL;
|
||||
|
||||
if (!decode_color_characteristics (edid, info))
|
||||
return NULL;
|
||||
|
||||
if (!decode_established_timings (edid, info))
|
||||
return NULL;
|
||||
|
||||
if (!decode_standard_timings (edid, info))
|
||||
return NULL;
|
||||
|
||||
if (!decode_descriptors (edid, info))
|
||||
return NULL;
|
||||
|
||||
return info;
|
||||
}
|
||||
|
||||
static const char *
|
||||
yesno (int v)
|
||||
{
|
||||
return v? "yes" : "no";
|
||||
}
|
||||
|
||||
void
|
||||
dump_monitor_info (MonitorInfo *info)
|
||||
{
|
||||
char *s;
|
||||
int i;
|
||||
|
||||
printf ("Checksum: %d (%s)\n",
|
||||
info->checksum, info->checksum? "incorrect" : "correct");
|
||||
printf ("Manufacturer Code: %s\n", info->manufacturer_code);
|
||||
printf ("Product Code: 0x%x\n", info->product_code);
|
||||
printf ("Serial Number: %u\n", info->serial_number);
|
||||
|
||||
if (info->production_week != -1)
|
||||
printf ("Production Week: %d\n", info->production_week);
|
||||
else
|
||||
printf ("Production Week: unspecified\n");
|
||||
|
||||
if (info->production_year != -1)
|
||||
printf ("Production Year: %d\n", info->production_year);
|
||||
else
|
||||
printf ("Production Year: unspecified\n");
|
||||
|
||||
if (info->model_year != -1)
|
||||
printf ("Model Year: %d\n", info->model_year);
|
||||
else
|
||||
printf ("Model Year: unspecified\n");
|
||||
|
||||
printf ("EDID revision: %d.%d\n", info->major_version, info->minor_version);
|
||||
|
||||
printf ("Display is %s\n", info->is_digital? "digital" : "analog");
|
||||
if (info->is_digital)
|
||||
{
|
||||
const char *interface;
|
||||
if (info->digital.bits_per_primary != -1)
|
||||
printf ("Bits Per Primary: %d\n", info->digital.bits_per_primary);
|
||||
else
|
||||
printf ("Bits Per Primary: undefined\n");
|
||||
|
||||
switch (info->digital.interface)
|
||||
{
|
||||
case DVI: interface = "DVI"; break;
|
||||
case HDMI_A: interface = "HDMI-a"; break;
|
||||
case HDMI_B: interface = "HDMI-b"; break;
|
||||
case MDDI: interface = "MDDI"; break;
|
||||
case DISPLAY_PORT: interface = "DisplayPort"; break;
|
||||
case UNDEFINED: interface = "undefined"; break;
|
||||
}
|
||||
printf ("Interface: %s\n", interface);
|
||||
|
||||
printf ("RGB 4:4:4: %s\n", yesno (info->digital.rgb444));
|
||||
printf ("YCrCb 4:4:4: %s\n", yesno (info->digital.ycrcb444));
|
||||
printf ("YCrCb 4:2:2: %s\n", yesno (info->digital.ycrcb422));
|
||||
}
|
||||
else
|
||||
{
|
||||
printf ("Video Signal Level: %f\n", info->analog.video_signal_level);
|
||||
printf ("Sync Signal Level: %f\n", info->analog.sync_signal_level);
|
||||
printf ("Total Signal Level: %f\n", info->analog.total_signal_level);
|
||||
|
||||
printf ("Blank to Black: %s\n",
|
||||
yesno (info->analog.blank_to_black));
|
||||
printf ("Separate HV Sync: %s\n",
|
||||
yesno (info->analog.separate_hv_sync));
|
||||
printf ("Composite Sync on H: %s\n",
|
||||
yesno (info->analog.composite_sync_on_h));
|
||||
printf ("Serration on VSync: %s\n",
|
||||
yesno (info->analog.serration_on_vsync));
|
||||
|
||||
switch (info->analog.color_type)
|
||||
{
|
||||
case UNDEFINED_COLOR: s = "undefined"; break;
|
||||
case MONOCHROME: s = "monochrome"; break;
|
||||
case RGB: s = "rgb"; break;
|
||||
case OTHER_COLOR: s = "other color"; break;
|
||||
};
|
||||
|
||||
printf ("Color: %s\n", s);
|
||||
}
|
||||
|
||||
if (info->width_mm == -1)
|
||||
printf ("Width: undefined\n");
|
||||
else
|
||||
printf ("Width: %d mm\n", info->width_mm);
|
||||
|
||||
if (info->height_mm == -1)
|
||||
printf ("Height: undefined\n");
|
||||
else
|
||||
printf ("Height: %d mm\n", info->height_mm);
|
||||
|
||||
if (info->aspect_ratio > 0)
|
||||
printf ("Aspect Ratio: %f\n", info->aspect_ratio);
|
||||
else
|
||||
printf ("Aspect Ratio: undefined\n");
|
||||
|
||||
if (info->gamma >= 0)
|
||||
printf ("Gamma: %f\n", info->gamma);
|
||||
else
|
||||
printf ("Gamma: undefined\n");
|
||||
|
||||
printf ("Standby: %s\n", yesno (info->standby));
|
||||
printf ("Suspend: %s\n", yesno (info->suspend));
|
||||
printf ("Active Off: %s\n", yesno (info->active_off));
|
||||
|
||||
printf ("SRGB is Standard: %s\n", yesno (info->srgb_is_standard));
|
||||
printf ("Preferred Timing Includes Native: %s\n",
|
||||
yesno (info->preferred_timing_includes_native));
|
||||
printf ("Continuous Frequency: %s\n", yesno (info->continuous_frequency));
|
||||
|
||||
printf ("Red X: %f\n", info->red_x);
|
||||
printf ("Red Y: %f\n", info->red_y);
|
||||
printf ("Green X: %f\n", info->green_x);
|
||||
printf ("Green Y: %f\n", info->green_y);
|
||||
printf ("Blue X: %f\n", info->blue_x);
|
||||
printf ("Blue Y: %f\n", info->blue_y);
|
||||
printf ("White X: %f\n", info->white_x);
|
||||
printf ("White Y: %f\n", info->white_y);
|
||||
|
||||
printf ("Established Timings:\n");
|
||||
|
||||
for (i = 0; i < 24; ++i)
|
||||
{
|
||||
Timing *timing = &(info->established[i]);
|
||||
|
||||
if (timing->frequency == 0)
|
||||
break;
|
||||
|
||||
printf (" %d x %d @ %d Hz\n",
|
||||
timing->width, timing->height, timing->frequency);
|
||||
|
||||
}
|
||||
|
||||
printf ("Standard Timings:\n");
|
||||
for (i = 0; i < 8; ++i)
|
||||
{
|
||||
Timing *timing = &(info->standard[i]);
|
||||
|
||||
if (timing->frequency == 0)
|
||||
break;
|
||||
|
||||
printf (" %d x %d @ %d Hz\n",
|
||||
timing->width, timing->height, timing->frequency);
|
||||
}
|
||||
|
||||
for (i = 0; i < info->n_detailed_timings; ++i)
|
||||
{
|
||||
DetailedTiming *timing = &(info->detailed_timings[i]);
|
||||
const char *s;
|
||||
|
||||
printf ("Timing%s: \n",
|
||||
(i == 0 && info->preferred_timing_includes_native)?
|
||||
" (Preferred)" : "");
|
||||
printf (" Pixel Clock: %d\n", timing->pixel_clock);
|
||||
printf (" H Addressable: %d\n", timing->h_addr);
|
||||
printf (" H Blank: %d\n", timing->h_blank);
|
||||
printf (" H Front Porch: %d\n", timing->h_front_porch);
|
||||
printf (" H Sync: %d\n", timing->h_sync);
|
||||
printf (" V Addressable: %d\n", timing->v_addr);
|
||||
printf (" V Blank: %d\n", timing->v_blank);
|
||||
printf (" V Front Porch: %d\n", timing->v_front_porch);
|
||||
printf (" V Sync: %d\n", timing->v_sync);
|
||||
printf (" Width: %d mm\n", timing->width_mm);
|
||||
printf (" Height: %d mm\n", timing->height_mm);
|
||||
printf (" Right Border: %d\n", timing->right_border);
|
||||
printf (" Top Border: %d\n", timing->top_border);
|
||||
switch (timing->stereo)
|
||||
{
|
||||
case NO_STEREO: s = "No Stereo"; break;
|
||||
case FIELD_RIGHT: s = "Field Sequential, Right on Sync"; break;
|
||||
case FIELD_LEFT: s = "Field Sequential, Left on Sync"; break;
|
||||
case TWO_WAY_RIGHT_ON_EVEN: s = "Two-way, Right on Even"; break;
|
||||
case TWO_WAY_LEFT_ON_EVEN: s = "Two-way, Left on Even"; break;
|
||||
case FOUR_WAY_INTERLEAVED: s = "Four-way Interleaved"; break;
|
||||
case SIDE_BY_SIDE: s = "Side-by-Side"; break;
|
||||
}
|
||||
printf (" Stereo: %s\n", s);
|
||||
|
||||
if (timing->digital_sync)
|
||||
{
|
||||
printf (" Digital Sync:\n");
|
||||
printf (" composite: %s\n", yesno (timing->digital.composite));
|
||||
printf (" serrations: %s\n", yesno (timing->digital.serrations));
|
||||
printf (" negative vsync: %s\n",
|
||||
yesno (timing->digital.negative_vsync));
|
||||
printf (" negative hsync: %s\n",
|
||||
yesno (timing->digital.negative_hsync));
|
||||
}
|
||||
else
|
||||
{
|
||||
printf (" Analog Sync:\n");
|
||||
printf (" bipolar: %s\n", yesno (timing->analog.bipolar));
|
||||
printf (" serrations: %s\n", yesno (timing->analog.serrations));
|
||||
printf (" sync on green: %s\n", yesno (
|
||||
timing->analog.sync_on_green));
|
||||
}
|
||||
}
|
||||
|
||||
printf ("Detailed Product information:\n");
|
||||
printf (" Product Name: %s\n", info->dsc_product_name);
|
||||
printf (" Serial Number: %s\n", info->dsc_serial_number);
|
||||
printf (" Unspecified String: %s\n", info->dsc_string);
|
||||
}
|
||||
|
||||
171
src/video/x11/edid.h
Normal file
171
src/video/x11/edid.h
Normal file
|
|
@ -0,0 +1,171 @@
|
|||
typedef unsigned char uchar;
|
||||
typedef struct MonitorInfo MonitorInfo;
|
||||
typedef struct Timing Timing;
|
||||
typedef struct DetailedTiming DetailedTiming;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
UNDEFINED,
|
||||
DVI,
|
||||
HDMI_A,
|
||||
HDMI_B,
|
||||
MDDI,
|
||||
DISPLAY_PORT
|
||||
} Interface;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
UNDEFINED_COLOR,
|
||||
MONOCHROME,
|
||||
RGB,
|
||||
OTHER_COLOR
|
||||
} ColorType;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
NO_STEREO,
|
||||
FIELD_RIGHT,
|
||||
FIELD_LEFT,
|
||||
TWO_WAY_RIGHT_ON_EVEN,
|
||||
TWO_WAY_LEFT_ON_EVEN,
|
||||
FOUR_WAY_INTERLEAVED,
|
||||
SIDE_BY_SIDE
|
||||
} StereoType;
|
||||
|
||||
struct Timing
|
||||
{
|
||||
int width;
|
||||
int height;
|
||||
int frequency;
|
||||
};
|
||||
|
||||
struct DisplayDescriptor
|
||||
{
|
||||
};
|
||||
|
||||
struct DetailedTiming
|
||||
{
|
||||
int pixel_clock;
|
||||
int h_addr;
|
||||
int h_blank;
|
||||
int h_sync;
|
||||
int h_front_porch;
|
||||
int v_addr;
|
||||
int v_blank;
|
||||
int v_sync;
|
||||
int v_front_porch;
|
||||
int width_mm;
|
||||
int height_mm;
|
||||
int right_border;
|
||||
int top_border;
|
||||
int interlaced;
|
||||
StereoType stereo;
|
||||
|
||||
int digital_sync;
|
||||
union
|
||||
{
|
||||
struct
|
||||
{
|
||||
int bipolar;
|
||||
int serrations;
|
||||
int sync_on_green;
|
||||
} analog;
|
||||
|
||||
struct
|
||||
{
|
||||
int composite;
|
||||
int serrations;
|
||||
int negative_vsync;
|
||||
int negative_hsync;
|
||||
} digital;
|
||||
};
|
||||
};
|
||||
|
||||
struct MonitorInfo
|
||||
{
|
||||
int checksum;
|
||||
char manufacturer_code[4];
|
||||
int product_code;
|
||||
unsigned int serial_number;
|
||||
|
||||
int production_week; /* -1 if not specified */
|
||||
int production_year; /* -1 if not specified */
|
||||
int model_year; /* -1 if not specified */
|
||||
|
||||
int major_version;
|
||||
int minor_version;
|
||||
|
||||
int is_digital;
|
||||
|
||||
union
|
||||
{
|
||||
struct
|
||||
{
|
||||
int bits_per_primary;
|
||||
Interface interface;
|
||||
int rgb444;
|
||||
int ycrcb444;
|
||||
int ycrcb422;
|
||||
} digital;
|
||||
|
||||
struct
|
||||
{
|
||||
double video_signal_level;
|
||||
double sync_signal_level;
|
||||
double total_signal_level;
|
||||
|
||||
int blank_to_black;
|
||||
|
||||
int separate_hv_sync;
|
||||
int composite_sync_on_h;
|
||||
int composite_sync_on_green;
|
||||
int serration_on_vsync;
|
||||
ColorType color_type;
|
||||
} analog;
|
||||
};
|
||||
|
||||
int width_mm; /* -1 if not specified */
|
||||
int height_mm; /* -1 if not specified */
|
||||
double aspect_ratio; /* -1.0 if not specififed */
|
||||
|
||||
double gamma; /* -1.0 if not specified */
|
||||
|
||||
int standby;
|
||||
int suspend;
|
||||
int active_off;
|
||||
|
||||
int srgb_is_standard;
|
||||
int preferred_timing_includes_native;
|
||||
int continuous_frequency;
|
||||
|
||||
double red_x;
|
||||
double red_y;
|
||||
double green_x;
|
||||
double green_y;
|
||||
double blue_x;
|
||||
double blue_y;
|
||||
double white_x;
|
||||
double white_y;
|
||||
|
||||
Timing established[24]; /* Terminated by 0x0x0 */
|
||||
Timing standard[8];
|
||||
|
||||
int n_detailed_timings;
|
||||
DetailedTiming detailed_timings[4]; /* If monitor has a preferred
|
||||
* mode, it is the first one
|
||||
* (whether it has, is
|
||||
* determined by the
|
||||
* preferred_timing_includes
|
||||
* bit.
|
||||
*/
|
||||
|
||||
/* Optional product description */
|
||||
char dsc_serial_number[14];
|
||||
char dsc_product_name[14];
|
||||
char dsc_string[14]; /* Unspecified ASCII data */
|
||||
};
|
||||
|
||||
MonitorInfo *decode_edid (const uchar *data);
|
||||
void dump_monitor_info (MonitorInfo *info);
|
||||
char * make_display_name (const char *output_name,
|
||||
const MonitorInfo *info);
|
||||
Loading…
Add table
Add a link
Reference in a new issue