From: Eduard Permyakov Subject: [PATCH v5 3/3] winex11.drv: Add EDID to the xinerama monitor devices. Message-Id: <20210907174356.962389-3-epermyakov@codeweavers.com> Date: Tue, 7 Sep 2021 20:43:56 +0300 In-Reply-To: <20210907174356.962389-1-epermyakov@codeweavers.com> References: <20210907174356.962389-1-epermyakov@codeweavers.com> Signed-off-by: Eduard Permyakov --- dlls/winex11.drv/xinerama.c | 77 ++++++++++++++++++++++++++++++++++++- 1 file changed, 75 insertions(+), 2 deletions(-) diff --git a/dlls/winex11.drv/xinerama.c b/dlls/winex11.drv/xinerama.c index 0e1e07669c2..03e56f250d8 100644 --- a/dlls/winex11.drv/xinerama.c +++ b/dlls/winex11.drv/xinerama.c @@ -23,6 +23,7 @@ #include #include +#include #include #ifdef HAVE_X11_EXTENSIONS_XINERAMA_H #include @@ -111,6 +112,76 @@ static int query_screens(void) return count; } +static void get_virtual_edid( RECT monitor, unsigned char **edid, unsigned long *len ) +{ + int i; + uint8_t accum = 0; + static const size_t desc_size = 128; + unsigned int width = monitor.right - monitor.left; + unsigned int height = monitor.bottom - monitor.top; + /*Sample EDID for an LCD Desktop IT Display, from VESA spec */ + static const unsigned char default_edid[128] = { + /* Header */ + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, + /* Manufacturer's code name */ + 0x04, 0x43, + /* Product code */ + 0x06, 0xf2, + /* Serial Number */ + 0x01, 0x00, 0x00, 0x00, + /* Date of manufacture */ + 0x01, 0x11, + /* EDID version */ + 0x01, 0x04, + /* Standard characteristics */ + 0x0f, 0x2b, 0x20, 0x78, 0x2b, 0x9c, 0x68, 0xa0, + 0x57, 0x4a, 0x9b, 0x26, 0x12, 0x48, 0x4c, 0xff, + 0xff, 0x80, 0xa9, 0x59, 0xa9, 0x4f, 0xa9, 0x4a, + 0xa9, 0x45, 0x81, 0x99, 0x81, 0x80, 0x61, 0x59, + 0x45, 0x59, + /* First 18-byte data block (Preferred Timing Mode) */ + 0x48, 0x3f, 0x40, 0x30, 0x62, 0xb0, 0x32, 0x40, + 0x40, 0xc0, 0x13, 0x00, 0xab, 0x40, 0x11, 0x00, + 0x00, 0x1e, + /* Second 18-byte data block */ + 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, 0x5a, 0x1e, + 0x6e, 0x17, 0x04, 0x11, 0x00, 0xc8, 0x90, 0x00, + 0x50, 0x3c, + /* Third 18-byte data block */ + 0x00, 0x00, 0x00, 0xf7, 0x00, 0x0a, 0xf7, 0x0f, + 0x03, 0x87, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, + /* Fourth 18-byte data block */ + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x41, 0x42, 0x43, + 0x20, 0x4c, 0x43, 0x44, 0x32, 0x31, 0x0a, 0x20, + 0x20, 0x20, + /* Extension flag */ + 0x00, + }; + + *edid = heap_calloc( desc_size, 1 ); + if (!*edid) + { + *len = 0; + return; + } + + memcpy( *edid, default_edid, sizeof(default_edid) ); + *len = desc_size; + + /* Set the native resolution in the Preferred Timing Mode descriptor */ + (*edid)[0x38] = width & 0xff; + (*edid)[0x3a] = ((width >> 8) & 0xf) << 4; + + (*edid)[0x3b] = height & 0xff; + (*edid)[0x3d] = ((height >> 8) & 0xf) << 4; + + /* Set checksum */ + for (i = 0; i < desc_size-1; i++) + accum += (*edid)[i]; + (*edid)[desc_size - 1] = 256 - accum; +} + #else /* SONAME_LIBXINERAMA */ static inline int query_screens(void) @@ -244,8 +315,7 @@ static BOOL xinerama_get_monitors( ULONG_PTR adapter_id, struct x11drv_monitor * monitor[index].rc_work = monitors[i].rcWork; /* Xinerama only reports monitors already attached */ monitor[index].state_flags = DISPLAY_DEVICE_ATTACHED; - monitor[index].edid_len = 0; - monitor[index].edid = NULL; + get_virtual_edid( monitors[i].rcMonitor, &monitor[index].edid, &monitor[index].edid_len ); if (!IsRectEmpty( &monitors[i].rcMonitor )) monitor[index].state_flags |= DISPLAY_DEVICE_ACTIVE; @@ -260,6 +330,9 @@ static BOOL xinerama_get_monitors( ULONG_PTR adapter_id, struct x11drv_monitor * static void xinerama_free_monitors( struct x11drv_monitor *monitors, int count ) { + int i; + for (i = 0; i < count; i++) + heap_free( monitors[i].edid ); heap_free( monitors ); } -- 2.25.1