diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/nvim/globals.h | 4 | ||||
| -rw-r--r-- | src/nvim/screen.c | 266 |
2 files changed, 96 insertions, 174 deletions
diff --git a/src/nvim/globals.h b/src/nvim/globals.h index 400f46eb79..7a1ce46ba4 100644 --- a/src/nvim/globals.h +++ b/src/nvim/globals.h @@ -158,10 +158,6 @@ EXTERN u8char_T *ScreenLinesC[MAX_MCO]; /* composing characters */ EXTERN int Screen_mco INIT(= 0); /* value of p_mco used when allocating ScreenLinesC[] */ -/* Only used for euc-jp: Second byte of a character that starts with 0x8e. - * These are single-width. */ -EXTERN schar_T *ScreenLines2 INIT(= NULL); - EXTERN int screen_Rows INIT(= 0); /* actual size of ScreenLines[] */ EXTERN int screen_Columns INIT(= 0); /* actual size of ScreenLines[] */ diff --git a/src/nvim/screen.c b/src/nvim/screen.c index e232939403..0672187975 100644 --- a/src/nvim/screen.c +++ b/src/nvim/screen.c @@ -24,8 +24,6 @@ * cells the next byte in ScreenLines[] is 0. * ScreenLinesC[][] contain up to 'maxcombine' composing characters * (drawn on top of the first character). There is 0 after the last one used. - * ScreenLines2[] is only used for euc-jp to store the second byte if the - * first byte is 0x8e (single-width character). * * The screen_*() functions write to the screen and handle updating * ScreenLines[]. @@ -1918,12 +1916,10 @@ static void fold_line(win_T *wp, long fold_count, foldinfo_T *foldinfo, linenr_T } if (cells > 1) ScreenLines[idx + 1] = 0; - } else if (enc_dbcs == DBCS_JPNU && *p == 0x8e) - /* double-byte single width character */ - ScreenLines2[idx] = p[1]; - else if (cells > 1) - /* double-width character */ + } else if (cells > 1) { + // Double-width character. ScreenLines[idx + 1] = p[1]; + } col += cells; idx += cells; p += c_len; @@ -4092,24 +4088,19 @@ win_line ( --col; } ScreenLines[off] = c; - if (enc_dbcs == DBCS_JPNU) { - if ((mb_c & 0xff00) == 0x8e00) - ScreenLines[off] = 0x8e; - ScreenLines2[off] = mb_c & 0xff; - } else if (enc_utf8) { - if (mb_utf8) { - int i; - - ScreenLinesUC[off] = mb_c; - if ((c & 0xff) == 0) - ScreenLines[off] = 0x80; /* avoid storing zero */ - for (i = 0; i < Screen_mco; ++i) { - ScreenLinesC[i][off] = u8cc[i]; - if (u8cc[i] == 0) - break; + if (mb_utf8) { + ScreenLinesUC[off] = mb_c; + if ((c & 0xff) == 0) { + ScreenLines[off] = 0x80; // Avoid storing zero. + } + for (int i = 0; i < Screen_mco; i++) { + ScreenLinesC[i][off] = u8cc[i]; + if (u8cc[i] == 0) { + break; } - } else - ScreenLinesUC[off] = 0; + } + } else { + ScreenLinesUC[off] = 0; } if (multi_attr) { ScreenAttrs[off] = multi_attr; @@ -4381,23 +4372,14 @@ static int comp_char_differs(int off_from, int off_to) static int char_needs_redraw(int off_from, int off_to, int cols) { return (cols > 0 - && ((ScreenLines[off_from] != ScreenLines[off_to] - || ScreenAttrs[off_from] != ScreenAttrs[off_to]) - - || (enc_dbcs != 0 - && MB_BYTE2LEN(ScreenLines[off_from]) > 1 - && (enc_dbcs == DBCS_JPNU && ScreenLines[off_from] == 0x8e - ? ScreenLines2[off_from] != ScreenLines2[off_to] - : (cols > 1 && ScreenLines[off_from + 1] - != ScreenLines[off_to + 1]))) - || (enc_utf8 - && (ScreenLinesUC[off_from] != ScreenLinesUC[off_to] - || (ScreenLinesUC[off_from] != 0 - && comp_char_differs(off_from, off_to)) - || ((*mb_off2cells)(off_from, off_from + cols) > 1 - && ScreenLines[off_from + 1] - != ScreenLines[off_to + 1]))) - || p_wd < 0)); + && (ScreenLines[off_from] != ScreenLines[off_to] + || ScreenAttrs[off_from] != ScreenAttrs[off_to] + || ScreenLinesUC[off_from] != ScreenLinesUC[off_to] + || (ScreenLinesUC[off_from] != 0 + && comp_char_differs(off_from, off_to)) + || (utf_off2cells(off_from, off_from + cols) > 1 + && ScreenLines[off_from + 1] != ScreenLines[off_to + 1]) + || p_wd < 0)); } /* @@ -4497,9 +4479,6 @@ static void screen_line(int row, int coloff, int endcol, ScreenLines[off_to + 2] = 0; redraw_next = TRUE; } - - if (enc_dbcs == DBCS_JPNU) - ScreenLines2[off_to] = ScreenLines2[off_from]; } /* When writing a single-width character over a double-width * character and at the end of the redrawn text, need to clear out @@ -5325,16 +5304,7 @@ void screen_getbytes(int row, int col, char_u *bytes, int *attrp) bytes[0] = ScreenLines[off]; bytes[1] = NUL; - if (enc_utf8 && ScreenLinesUC[off] != 0) - bytes[utfc_char2bytes(off, bytes)] = NUL; - else if (enc_dbcs == DBCS_JPNU && ScreenLines[off] == 0x8e) { - bytes[0] = ScreenLines[off]; - bytes[1] = ScreenLines2[off]; - bytes[2] = NUL; - } else if (enc_dbcs && MB_BYTE2LEN(bytes[0]) > 1) { - bytes[1] = ScreenLines[off + 1]; - bytes[2] = NUL; - } + bytes[utfc_char2bytes(off, bytes)] = NUL; } } @@ -5524,11 +5494,9 @@ void screen_puts_len(char_u *text, int textlen, int row, int col, int attr) ScreenLines[off + 1] = ptr[1]; ScreenAttrs[off + 1] = attr; screen_char_2(off, row, col); - } else if (l_enc_dbcs == DBCS_JPNU && c == 0x8e) { - ScreenLines2[off] = ptr[1]; - screen_char(off, row, col); - } else + } else { screen_char(off, row, col); + } } if (l_has_mbyte) { off += mbyte_cells; @@ -5901,7 +5869,7 @@ static void screen_char(unsigned off, int row, int col) ui_cursor_goto(row, col); ui_set_highlight(ScreenAttrs[off]); - if (enc_utf8 && ScreenLinesUC[off] != 0) { + if (ScreenLinesUC[off] != 0) { char_u buf[MB_MAXBYTES + 1]; // Convert UTF-8 character to bytes and write it. @@ -5909,10 +5877,6 @@ static void screen_char(unsigned off, int row, int col) ui_puts(buf); } else { ui_putc(ScreenLines[off]); - // double-byte character in single-width cell - if (enc_dbcs == DBCS_JPNU && ScreenLines[off] == 0x8e) { - ui_putc(ScreenLines2[off]); - } } } @@ -6104,40 +6068,25 @@ int screen_valid(int doclear) void screenalloc(bool doclear) { int new_row, old_row; - int outofmem = FALSE; int len; - schar_T *new_ScreenLines; - u8char_T *new_ScreenLinesUC = NULL; - u8char_T *new_ScreenLinesC[MAX_MCO]; - schar_T *new_ScreenLines2 = NULL; - int i; - sattr_T *new_ScreenAttrs; - unsigned *new_LineOffset; - char_u *new_LineWraps; - StlClickDefinition *new_tab_page_click_defs; static bool entered = false; // avoid recursiveness static bool done_outofmem_msg = false; int retry_count = 0; - const bool l_enc_utf8 = enc_utf8; - const int l_enc_dbcs = enc_dbcs; retry: - /* - * Allocation of the screen buffers is done only when the size changes and - * when Rows and Columns have been set and we have started doing full - * screen stuff. - */ + // Allocation of the screen buffers is done only when the size changes and + // when Rows and Columns have been set and we have started doing full + // screen stuff. if ((ScreenLines != NULL && Rows == screen_Rows && Columns == screen_Columns - && l_enc_utf8 == (ScreenLinesUC != NULL) - && (l_enc_dbcs == DBCS_JPNU) == (ScreenLines2 != NULL) - && p_mco == Screen_mco - ) + && ScreenLinesUC != NULL + && p_mco == Screen_mco) || Rows == 0 || Columns == 0 - || (!full_screen && ScreenLines == NULL)) + || (!full_screen && ScreenLines == NULL)) { return; + } /* * It's possible that we produce an out-of-memory message below, which @@ -6175,22 +6124,22 @@ retry: if (aucmd_win != NULL) win_free_lsize(aucmd_win); - new_ScreenLines = xmalloc((size_t)((Rows + 1) * Columns * sizeof(schar_T))); - memset(new_ScreenLinesC, 0, sizeof(u8char_T *) * MAX_MCO); - if (l_enc_utf8) { - new_ScreenLinesUC = xmalloc( - (size_t)((Rows + 1) * Columns * sizeof(u8char_T))); - for (i = 0; i < p_mco; ++i) - new_ScreenLinesC[i] = xcalloc((Rows + 1) * Columns, sizeof(u8char_T)); - } - if (l_enc_dbcs == DBCS_JPNU) - new_ScreenLines2 = xmalloc( - (size_t)((Rows + 1) * Columns * sizeof(schar_T))); - new_ScreenAttrs = xmalloc((size_t)((Rows + 1) * Columns * sizeof(sattr_T))); - new_LineOffset = xmalloc((size_t)(Rows * sizeof(unsigned))); - new_LineWraps = xmalloc((size_t)(Rows * sizeof(char_u))); - new_tab_page_click_defs = xcalloc( - (size_t) Columns, sizeof(*new_tab_page_click_defs)); + schar_T *new_ScreenLines = xmalloc( + (size_t)((Rows + 1) * Columns * sizeof(*new_ScreenLines))); + u8char_T *new_ScreenLinesC[MAX_MCO]; + memset(new_ScreenLinesC, 0, sizeof(new_ScreenLinesC)); + u8char_T *new_ScreenLinesUC = xmalloc( + (size_t)((Rows + 1) * Columns * sizeof(*new_ScreenLinesUC))); + for (int i = 0; i < p_mco; i++) { + new_ScreenLinesC[i] = xcalloc( + (size_t)((Rows + 1) * Columns), sizeof(new_ScreenLinesC[0][0])); + } + sattr_T *new_ScreenAttrs = xmalloc( + (size_t)((Rows + 1) * Columns * sizeof(*new_ScreenAttrs))); + unsigned *new_LineOffset = xmalloc((size_t)(Rows * sizeof(*new_LineOffset))); + char_u *new_LineWraps = xmalloc((size_t)(Rows * sizeof(*new_LineWraps))); + StlClickDefinition *new_tab_page_click_defs = xcalloc( + (size_t)Columns, sizeof(*new_tab_page_click_defs)); FOR_ALL_TAB_WINDOWS(tp, wp) { win_alloc_lines(wp); @@ -6199,23 +6148,20 @@ retry: win_alloc_lines(aucmd_win); } - for (i = 0; i < p_mco; ++i) - if (new_ScreenLinesC[i] == NULL) + int i; + for (i = 0; i < p_mco; i++) { + if (new_ScreenLinesC[i] == NULL) { break; - if (new_ScreenLines == NULL - || (new_ScreenLinesUC == NULL || i != p_mco) - || new_ScreenAttrs == NULL - || new_LineOffset == NULL - || new_LineWraps == NULL - || new_tab_page_click_defs == NULL - || outofmem) { + } + } + if (i != p_mco) { if (ScreenLines != NULL || !done_outofmem_msg) { - /* guess the size */ + // Guess the size. do_outofmem_msg((Rows + 1) * Columns); - /* Remember we did this to avoid getting outofmem messages over - * and over again. */ - done_outofmem_msg = TRUE; + // Remember we did this to avoid getting outofmem messages over + // and over again. + done_outofmem_msg = true; } xfree(new_ScreenLines); new_ScreenLines = NULL; @@ -6225,8 +6171,6 @@ retry: xfree(new_ScreenLinesC[i]); new_ScreenLinesC[i] = NULL; } - xfree(new_ScreenLines2); - new_ScreenLines2 = NULL; xfree(new_ScreenAttrs); new_ScreenAttrs = NULL; xfree(new_LineOffset); @@ -6249,53 +6193,42 @@ retry: * executing an external command, for the GUI). */ if (!doclear) { - (void)memset(new_ScreenLines + new_row * Columns, - ' ', (size_t)Columns * sizeof(schar_T)); - if (l_enc_utf8) { - (void)memset(new_ScreenLinesUC + new_row * Columns, - 0, (size_t)Columns * sizeof(u8char_T)); - for (i = 0; i < p_mco; ++i) - (void)memset(new_ScreenLinesC[i] - + new_row * Columns, - 0, (size_t)Columns * sizeof(u8char_T)); + memset(new_ScreenLines + new_row * Columns, + ' ', (size_t)Columns * sizeof(new_ScreenLines[0])); + memset(new_ScreenLinesUC + new_row * Columns, + 0, (size_t)Columns * sizeof(new_ScreenLinesUC[0])); + for (i = 0; i < p_mco; i++) { + memset(new_ScreenLinesC[i] + new_row * Columns, + 0, (size_t)Columns * sizeof(new_ScreenLinesC[0][0])); } - if (l_enc_dbcs == DBCS_JPNU) - (void)memset(new_ScreenLines2 + new_row * Columns, - 0, (size_t)Columns * sizeof(schar_T)); - (void)memset(new_ScreenAttrs + new_row * Columns, - 0, (size_t)Columns * sizeof(sattr_T)); + memset(new_ScreenAttrs + new_row * Columns, + 0, (size_t)Columns * sizeof(new_ScreenAttrs[0])); old_row = new_row + (screen_Rows - Rows); if (old_row >= 0 && ScreenLines != NULL) { if (screen_Columns < Columns) len = screen_Columns; else len = Columns; - /* When switching to utf-8 don't copy characters, they - * may be invalid now. Also when p_mco changes. */ - if (!(l_enc_utf8 && ScreenLinesUC == NULL) - && p_mco == Screen_mco) + // When switching to utf-8 don't copy characters, they + // may be invalid now. Also when p_mco changes. + if (ScreenLinesUC != NULL && p_mco == Screen_mco) { memmove(new_ScreenLines + new_LineOffset[new_row], - ScreenLines + LineOffset[old_row], - (size_t)len * sizeof(schar_T)); - if (l_enc_utf8 && ScreenLinesUC != NULL - && p_mco == Screen_mco) { - memmove(new_ScreenLinesUC + new_LineOffset[new_row], - ScreenLinesUC + LineOffset[old_row], - (size_t)len * sizeof(u8char_T)); - for (i = 0; i < p_mco; ++i) - memmove(new_ScreenLinesC[i] - + new_LineOffset[new_row], - ScreenLinesC[i] + LineOffset[old_row], - (size_t)len * sizeof(u8char_T)); + ScreenLines + LineOffset[old_row], + (size_t)len * sizeof(new_ScreenLines[0])); } - if (ScreenLines2 != NULL) { - memmove(new_ScreenLines2 + new_LineOffset[new_row], - ScreenLines2 + LineOffset[old_row], - (size_t)len * sizeof(schar_T)); + if (ScreenLinesUC != NULL && p_mco == Screen_mco) { + memmove(new_ScreenLinesUC + new_LineOffset[new_row], + ScreenLinesUC + LineOffset[old_row], + (size_t)len * sizeof(new_ScreenLinesUC[0])); + for (i = 0; i < p_mco; i++) { + memmove(new_ScreenLinesC[i] + new_LineOffset[new_row], + ScreenLinesC[i] + LineOffset[old_row], + (size_t)len * sizeof(new_ScreenLinesC[0][0])); + } } memmove(new_ScreenAttrs + new_LineOffset[new_row], ScreenAttrs + LineOffset[old_row], - (size_t)len * sizeof(sattr_T)); + (size_t)len * sizeof(new_ScreenAttrs[0])); } } } @@ -6310,7 +6243,6 @@ retry: for (i = 0; i < p_mco; ++i) ScreenLinesC[i] = new_ScreenLinesC[i]; Screen_mco = p_mco; - ScreenLines2 = new_ScreenLines2; ScreenAttrs = new_ScreenAttrs; LineOffset = new_LineOffset; LineWraps = new_LineWraps; @@ -6344,12 +6276,10 @@ retry: void free_screenlines(void) { - int i; - xfree(ScreenLinesUC); - for (i = 0; i < Screen_mco; ++i) + for (int i = 0; i < Screen_mco; i++) { xfree(ScreenLinesC[i]); - xfree(ScreenLines2); + } xfree(ScreenLines); xfree(ScreenAttrs); xfree(LineOffset); @@ -6433,25 +6363,21 @@ static void lineclear(unsigned off, int width) */ static void linecopy(int to, int from, win_T *wp) { - unsigned off_to = LineOffset[to] + wp->w_wincol; - unsigned off_from = LineOffset[from] + wp->w_wincol; + const unsigned off_to = LineOffset[to] + wp->w_wincol; + const unsigned off_from = LineOffset[from] + wp->w_wincol; memmove(ScreenLines + off_to, ScreenLines + off_from, - wp->w_width * sizeof(schar_T)); - if (enc_utf8) { - int i; + wp->w_width * sizeof(ScreenLines[0])); - memmove(ScreenLinesUC + off_to, ScreenLinesUC + off_from, - wp->w_width * sizeof(u8char_T)); - for (i = 0; i < p_mco; ++i) - memmove(ScreenLinesC[i] + off_to, ScreenLinesC[i] + off_from, - wp->w_width * sizeof(u8char_T)); + memmove(ScreenLinesUC + off_to, ScreenLinesUC + off_from, + wp->w_width * sizeof(u8char_T)); + for (int i = 0; i < p_mco; i++) { + memmove(ScreenLinesC[i] + off_to, ScreenLinesC[i] + off_from, + wp->w_width * sizeof(ScreenLinesC[0])); } - if (enc_dbcs == DBCS_JPNU) - memmove(ScreenLines2 + off_to, ScreenLines2 + off_from, - wp->w_width * sizeof(schar_T)); + memmove(ScreenAttrs + off_to, ScreenAttrs + off_from, - wp->w_width * sizeof(sattr_T)); + wp->w_width * sizeof(ScreenAttrs[0])); } /* |