faster resizing.
parent
e8c13ebe80
commit
4db3df312a
21
st.c
21
st.c
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@ -1001,23 +1001,21 @@ tputs(char *s, int len) {
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void
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tresize(int col, int row) {
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int i;
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Line *line;
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int minrow = MIN(row, term.row);
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int mincol = MIN(col, term.col);
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if(col < 1 || row < 1)
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return;
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/* alloc */
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line = calloc(row, sizeof(Line));
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for(i = 0 ; i < row; i++)
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line[i] = calloc(col, sizeof(Glyph));
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/* copy */
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for(i = 0 ; i < minrow; i++)
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memcpy(line[i], term.line[i], mincol * sizeof(Glyph));
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/* free */
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for(i = 0; i < term.row; i++)
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for(i = row; i < term.row; i++)
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free(term.line[i]);
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free(term.line);
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term.line = realloc(term.line, row * sizeof(Line));
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for(i = 0; i < minrow; i++) {
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term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
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memset(term.line[i] + mincol, 0, (col - mincol) * sizeof(Glyph));
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}
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for(/* i == minrow */; i < row; i++)
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term.line[i] = calloc(col, sizeof(Glyph));
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LIMIT(term.c.x, 0, col-1);
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LIMIT(term.c.y, 0, row-1);
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@ -1025,7 +1023,6 @@ tresize(int col, int row) {
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LIMIT(term.bot, 0, row-1);
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term.bot = row-1;
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term.line = line;
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term.col = col, term.row = row;
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}
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