Merge remote-tracking branch 'upstream/master' into userreguserreg

1 files changed, 27 insertions, 32 deletions

diff --git a/src/nvim/grid.h b/src/nvim/grid.h
index deb3d3785d..9d8e395dae 100644
--- a/src/nvim/grid.h
+++ b/src/nvim/grid.h
@@ -1,15 +1,14 @@
-#ifndef NVIM_GRID_H
-#define NVIM_GRID_H
+#pragma once
 
 #include <stdbool.h>
+#include <stddef.h>  // IWYU pragma: keep
 #include <string.h>
 
-#include "nvim/ascii.h"
 #include "nvim/buffer_defs.h"
-#include "nvim/grid_defs.h"
-#include "nvim/macros.h"
+#include "nvim/grid_defs.h"  // IWYU pragma: export
+#include "nvim/macros_defs.h"
 #include "nvim/mbyte.h"
-#include "nvim/memory.h"
+#include "nvim/pos_defs.h"
 
 /// By default, all windows are drawn on a single rectangular grid, represented by
 /// this ScreenGrid instance. In multigrid mode each window will have its own
@@ -18,47 +17,43 @@
 ///
 /// Note: before the screen is initialized and when out of memory these can be
 /// NULL.
-EXTERN ScreenGrid default_grid INIT(= SCREEN_GRID_INIT);
+EXTERN ScreenGrid default_grid INIT( = SCREEN_GRID_INIT);
 
 #define DEFAULT_GRID_HANDLE 1  // handle for the default_grid
 
 /// While resizing the screen this flag is set.
-EXTERN bool resizing_screen INIT(= 0);
+EXTERN bool resizing_screen INIT( = 0);
 
-EXTERN schar_T *linebuf_char INIT(= NULL);
-EXTERN sattr_T *linebuf_attr INIT(= NULL);
+EXTERN schar_T *linebuf_char INIT( = NULL);
+EXTERN sattr_T *linebuf_attr INIT( = NULL);
+EXTERN colnr_T *linebuf_vcol INIT( = NULL);
+EXTERN char *linebuf_scratch INIT( = NULL);
 
 // Low-level functions to manipulate individual character cells on the
 // screen grid.
 
 /// Put a ASCII character in a screen cell.
-static inline void schar_from_ascii(char *p, const char c)
-{
-  p[0] = c;
-  p[1] = 0;
-}
+///
+/// If `x` is a compile time constant, schar_from_ascii(x) will also be.
+/// But the specific value varies per platform.
+#ifdef ORDER_BIG_ENDIAN
+# define schar_from_ascii(x) ((schar_T)((x) << 24))
+#else
+# define schar_from_ascii(x) ((schar_T)(x))
+#endif
 
 /// Put a unicode character in a screen cell.
-static inline int schar_from_char(char *p, int c)
-{
-  int len = utf_char2bytes(c, p);
-  p[len] = NUL;
-  return len;
-}
-
-/// compare the contents of two screen cells.
-static inline int schar_cmp(char *sc1, char *sc2)
-{
-  return strncmp(sc1, sc2, sizeof(schar_T));
-}
-
-/// copy the contents of screen cell `sc2` into cell `sc1`
-static inline void schar_copy(char *sc1, char *sc2)
+static inline schar_T schar_from_char(int c)
 {
-  xstrlcpy(sc1, sc2, sizeof(schar_T));
+  schar_T sc = 0;
+  if (c >= 0x200000) {
+    // TODO(bfredl): this must NEVER happen, even if the file contained overlong sequences
+    c = 0xFFFD;
+  }
+  utf_char2bytes(c, (char *)&sc);
+  return sc;
 }
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "grid.h.generated.h"
 #endif
-#endif  // NVIM_GRID_H