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DisplayServer (Linux): get EDID (WIP)

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This commit is contained in:
李通洲 2023-08-09 21:56:40 +08:00
parent e7487e24ae
commit fada8113c1
1 changed files with 28 additions and 4 deletions
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32
src/detection/displayserver/linux/xcb.c
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@ -154,6 +154,7 @@ void ffdsConnectXcb(FFDisplayServerResult* result)
#endif
#ifdef FF_HAVE_XCB_RANDR
#include "util/edidHelper.h"
#include <xcb/randr.h>
typedef struct XcbRandrData
@ -175,7 +176,12 @@ typedef struct XcbRandrData
FF_LIBRARY_SYMBOL(xcb_randr_get_output_info_reply)
FF_LIBRARY_SYMBOL(xcb_randr_get_crtc_info)
FF_LIBRARY_SYMBOL(xcb_randr_get_crtc_info_reply)
FF_LIBRARY_SYMBOL(xcb_get_atom_name)
FF_LIBRARY_SYMBOL(xcb_randr_get_output_property)
FF_LIBRARY_SYMBOL(xcb_randr_get_output_property_reply)
FF_LIBRARY_SYMBOL(xcb_randr_get_output_property_data)
FF_LIBRARY_SYMBOL(xcb_randr_get_output_property_data_length)
FF_LIBRARY_SYMBOL(xcb_intern_atom)
FF_LIBRARY_SYMBOL(xcb_intern_atom_reply)
//init once
xcb_connection_t* connection;
@ -271,13 +277,25 @@ static bool xcbRandrHandleCrtc(XcbRandrData* data, xcb_randr_crtc_t crtc, FFstrb
static bool xcbRandrHandleOutput(XcbRandrData* data, xcb_randr_output_t output, FFstrbuf* name, bool primary)
{
xcb_randr_get_output_info_cookie_t outputInfoCookie = data->ffxcb_randr_get_output_info(data->connection, output, XCB_CURRENT_TIME);
xcb_randr_get_output_info_reply_t* outputInfoReply = data->ffxcb_randr_get_output_info_reply(data->connection, outputInfoCookie, NULL);
FF_AUTO_FREE xcb_randr_get_output_info_reply_t* outputInfoReply = data->ffxcb_randr_get_output_info_reply(data->connection, outputInfoCookie, NULL);
if(outputInfoReply == NULL)
return false;
bool res = xcbRandrHandleCrtc(data, outputInfoReply->crtc, name, primary);
xcb_intern_atom_cookie_t requestAtomCookie = data->ffxcb_intern_atom(data->connection, true, (uint16_t) strlen("EDID"), "EDID");
FF_AUTO_FREE xcb_intern_atom_reply_t* requestAtomReply = data->ffxcb_intern_atom_reply(data->connection, requestAtomCookie, NULL);
free(outputInfoReply);
xcb_randr_get_output_property_cookie_t outputPropertyCookie = data->ffxcb_randr_get_output_property(data->connection, output, requestAtomReply->atom, XCB_GET_PROPERTY_TYPE_ANY, 0, 100, false, false);
FF_AUTO_FREE xcb_randr_get_output_property_reply_t* outputPropertyReply = data->ffxcb_randr_get_output_property_reply(data->connection, outputPropertyCookie, NULL);
if(outputPropertyReply)
{
if(data->ffxcb_randr_get_output_property_data_length(outputPropertyReply) >= 128)
{
ffStrbufClear(name);
ffEdidGetName(data->ffxcb_randr_get_output_property_data(outputPropertyReply), name);
}
}
bool res = xcbRandrHandleCrtc(data, outputInfoReply->crtc, name, primary);
return res;
}
@ -418,6 +436,8 @@ void ffdsConnectXcbRandr(FFDisplayServerResult* result)
XcbRandrData data;
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_intern_atom,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_intern_atom_reply,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_screen_resources,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_screen_resources_reply,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_screen_resources_modes_iterator,)
@ -433,6 +453,10 @@ void ffdsConnectXcbRandr(FFDisplayServerResult* result)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_output_next,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_output_info,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_output_info_reply,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_output_property,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_output_property_reply,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_output_property_data,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_output_property_data_length,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_crtc_info,)
FF_LIBRARY_LOAD_SYMBOL_VAR(xcbRandr, data, xcb_randr_get_crtc_info_reply,)