Jacek Caban : conhost: Update tty output in scroll_output.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f3322891420d4d7c5a1c506a25ef4f99d21b2f8e
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=f3322891420d4d7c5a1c506a25ef4f99d21b2f8e

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Fri Sep  4 13:51:45 2020 +0200

conhost: Update tty output in scroll_output.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 programs/conhost/conhost.c   |  5 +++++
 programs/conhost/tests/tty.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)

diff --git a/programs/conhost/conhost.c b/programs/conhost/conhost.c
index 8f0a48c097..9edd5971b8 100644
--- a/programs/conhost/conhost.c
+++ b/programs/conhost/conhost.c
@@ -905,6 +905,7 @@ static NTSTATUS scroll_output( struct screen_buffer *screen_buffer, const struct
     int x, y, xsrc, ysrc, w, h;
     char_info_t *psrc, *pdst;
     SMALL_RECT src, dst;
+    RECT update_rect;
     SMALL_RECT clip;
 
     xsrc = params->scroll.Left;
@@ -993,6 +994,10 @@ static NTSTATUS scroll_output( struct screen_buffer *screen_buffer, const struct
         for (x = left; x <= right; x++) screen_buffer->data[y * screen_buffer->width + x] = params->fill;
     }
 
+    SetRect( &update_rect, min( src.Left, dst.Left ), min( src.Top, dst.Top ),
+             max( src.Right, dst.Right ), max( src.Bottom, dst.Bottom ));
+    update_output( screen_buffer, &update_rect );
+    tty_sync( screen_buffer->console );
     return STATUS_SUCCESS;
 }
 
diff --git a/programs/conhost/tests/tty.c b/programs/conhost/tests/tty.c
index 4a0ec30875..c28928701f 100644
--- a/programs/conhost/tests/tty.c
+++ b/programs/conhost/tests/tty.c
@@ -146,6 +146,7 @@ static BOOL expect_erase_line_(unsigned line, unsigned int cnt)
 enum req_type
 {
     REQ_FILL_CHAR,
+    REQ_SCROLL,
     REQ_SET_CURSOR,
     REQ_SET_TITLE,
     REQ_WRITE_CHARACTERS,
@@ -173,6 +174,12 @@ struct pseudoconsole_req
             CHAR_INFO buf[1];
         } write_output;
         struct
+        {
+            SMALL_RECT rect;
+            COORD dst;
+            CHAR_INFO fill;
+        } scroll;
+        struct
         {
             WCHAR ch;
             DWORD count;
@@ -259,6 +266,26 @@ static void child_write_output_(unsigned int line, CHAR_INFO *buf, unsigned int
     ok_(__FILE__,line)(region.Bottom == out_bottom, "Bottom = %u\n", region.Bottom);
 }
 
+static void child_scroll(unsigned int src_left, unsigned int src_top, unsigned int src_right,
+                         unsigned int src_bottom, unsigned int dst_x, unsigned int dst_y, WCHAR fill)
+{
+    struct pseudoconsole_req req;
+    DWORD count;
+    BOOL ret;
+
+    req.type = REQ_SCROLL;
+    req.u.scroll.rect.Left   = src_left;
+    req.u.scroll.rect.Top    = src_top;
+    req.u.scroll.rect.Right  = src_right;
+    req.u.scroll.rect.Bottom = src_bottom;
+    req.u.scroll.dst.X = dst_x;
+    req.u.scroll.dst.Y = dst_y;
+    req.u.scroll.fill.Char.UnicodeChar = fill;
+    req.u.scroll.fill.Attributes = 0;
+    ret = WriteFile(child_pipe, &req, sizeof(req), &count, NULL);
+    ok(ret, "WriteFile failed: %u\n", GetLastError());
+}
+
 static void child_fill_character(WCHAR ch, DWORD count, int x, int y)
 {
     struct pseudoconsole_req req;
@@ -418,6 +445,18 @@ static void test_tty_output(void)
     expect_output_sequence("\x1b[?25h");   /* show cursor */
     expect_empty_output();
 
+    child_scroll(/* scroll rect */ 0, 7, 2, 8, /* destination */ 2, 8, /* fill */ 'x');
+    expect_hide_cursor();
+    if (skip_sequence("\x1b[m"))           /* default attr */
+        expect_output_sequence("\x1b[30m");/* foreground black */
+    expect_output_sequence("\x1b[8;1H");   /* set cursor */
+    expect_output_sequence("xxx89\r\n");
+    expect_output_sequence("xx567\r\n");
+    expect_output_sequence("90234");
+    expect_output_sequence("\x1b[4;3H");   /* set cursor */
+    expect_output_sequence("\x1b[?25h");   /* show cursor */
+    expect_empty_output();
+
     child_write_characters(L"xxx", 3, 10);
     expect_hide_cursor();
     expect_output_sequence("\x1b[m");      /* default attributes */
@@ -513,6 +552,11 @@ static void child_process(HANDLE pipe)
         const struct pseudoconsole_req *req = (void *)buf;
         switch (req->type)
         {
+        case REQ_SCROLL:
+            ret = ScrollConsoleScreenBufferW(output, &req->u.scroll.rect, NULL, req->u.scroll.dst, &req->u.scroll.fill);
+            ok(ret, "ScrollConsoleScreenBuffer failed: %u\n", GetLastError());
+            break;
+
         case REQ_FILL_CHAR:
             ret = FillConsoleOutputCharacterW(output, req->u.fill.ch, req->u.fill.count, req->u.fill.coord, &count);
             ok(ret, "FillConsoleOutputCharacter failed: %u\n", GetLastError());