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commit b9bfcc073233cfda9efe1d2cb41774b18f7f3317
Author: [email protected] <[email protected]>
AuthorDate: Thu Apr 23 18:35:18 2026 -0600
perf: add textgrid change benchmark
Exercises evas_object_textgrid with per-frame full-grid
redraws and randomized attributes, mirroring terminology's
worst-case render pattern. Used to track upstream textgrid
improvements and to measure terminology render-loop changes.
---
src/bin/meson.build | 1 +
src/bin/tests.h | 1 +
src/bin/textgrid_change.c | 152 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 154 insertions(+)
diff --git a/src/bin/meson.build b/src/bin/meson.build
index 3bc3736..672e82d 100644
--- a/src/bin/meson.build
+++ b/src/bin/meson.build
@@ -72,6 +72,7 @@ expedite_sources = [ 'main.c',
'text_styles.c',
'text_styles_different_strings.c',
'text_change.c',
+ 'textgrid_change.c',
'textblock_basic.c',
'textblock_intl.c',
'textblock_auto_align.c',
diff --git a/src/bin/tests.h b/src/bin/tests.h
index 6e9d6c1..55c3aa6 100644
--- a/src/bin/tests.h
+++ b/src/bin/tests.h
@@ -65,6 +65,7 @@
#include "text_styles.c"
#include "text_styles_different_strings.c"
#include "text_change.c"
+#include "textgrid_change.c"
#include "textblock_basic.c"
#include "textblock_intl.c"
#include "textblock_auto_align.c"
diff --git a/src/bin/textgrid_change.c b/src/bin/textgrid_change.c
new file mode 100644
index 0000000..703f33e
--- /dev/null
+++ b/src/bin/textgrid_change.c
@@ -0,0 +1,152 @@
+#undef FNAME
+#undef NAME
+#undef ICON
+
+/* metadata */
+#define FNAME textgrid_change_start
+#define NAME "Textgrid Change"
+#define ICON "text.png"
+
+#ifndef PROTO
+# ifndef UI
+# include "main.h"
+
+#define TG_COLS 80
+#define TG_ROWS 25
+#define TG_PALETTE 16
+
+static int done = 0;
+static Evas_Object *o_grid = NULL;
+
+static void
+_fill_random_row(Evas_Textgrid_Cell *row)
+{
+ int x;
+ for (x = 0; x < TG_COLS; x++)
+ {
+ unsigned int r = rnd();
+ row[x].codepoint = 0x20 + (r % 95);
+ row[x].fg = r % TG_PALETTE;
+ row[x].bg = (r >> 4) % TG_PALETTE;
+ row[x].bold = (r >> 8) & 1;
+ row[x].italic = (r >> 9) & 1;
+ row[x].underline = (r >> 10) & 1;
+ row[x].strikethrough = 0;
+ row[x].fg_extended = 0;
+ row[x].bg_extended = 0;
+ row[x].double_width = 0;
+ }
+}
+
+static void _setup(void)
+{
+ int i;
+ Evas_Object *o;
+
+ o = evas_object_textgrid_add(evas);
+ o_grid = o;
+ evas_object_textgrid_font_set(o, "Vera-Bold", 14);
+ evas_object_textgrid_size_set(o, TG_COLS, TG_ROWS);
+
+ /* a small palette: 16 standard-palette entries */
+ for (i = 0; i < TG_PALETTE; i++)
+ {
+ int r = (i & 1) ? 255 : 96;
+ int g = (i & 2) ? 255 : 96;
+ int b = (i & 4) ? 255 : 96;
+ evas_object_textgrid_palette_set
+ (o, EVAS_TEXTGRID_PALETTE_STANDARD, i, r, g, b, 255);
+ }
+
+ {
+ Evas_Coord cw = 0, ch = 0;
+ evas_object_textgrid_cell_size_get(o, &cw, &ch);
+ if (cw < 1) cw = 8;
+ if (ch < 1) ch = 16;
+ evas_object_resize(o, TG_COLS * cw, TG_ROWS * ch);
+ }
+ evas_object_move(o, 0, 0);
+ evas_object_show(o);
+
+ srnd();
+
+ for (i = 0; i < TG_ROWS; i++)
+ {
+ Evas_Textgrid_Cell *row = evas_object_textgrid_cellrow_get(o_grid, i);
+ if (!row) continue;
+ _fill_random_row(row);
+ evas_object_textgrid_cellrow_set(o_grid, i, row);
+ evas_object_textgrid_update_add(o_grid, 0, i, TG_COLS, 1);
+ }
+
+ done = 0;
+}
+
+static void _cleanup(void)
+{
+ if (o_grid) { efl_del(o_grid); o_grid = NULL; }
+}
+
+static void _loop(double t, int f)
+{
+ int y, x;
+ Evas_Textgrid_Cell *row_dst, *row_src, *last_row;
+
+ (void)t;
+ (void)f;
+
+ /* Scroll up by one row every frame: copy row[y+1] -> row[y] for y in
+ * [0, TG_ROWS-2], then fill the last row with fresh random content.
+ * Every cell in the grid is written every frame (same render stress
+ * as a full-grid rewrite) but with visible temporal coherence, so
+ * the animation looks like a waterfall of text moving upward — much
+ * like a terminal streaming output line by line. */
+ for (y = 0; y < TG_ROWS - 1; y++)
+ {
+ row_dst = evas_object_textgrid_cellrow_get(o_grid, y);
+ row_src = evas_object_textgrid_cellrow_get(o_grid, y + 1);
+ if (!row_dst || !row_src) continue;
+ for (x = 0; x < TG_COLS; x++)
+ row_dst[x] = row_src[x];
+ evas_object_textgrid_cellrow_set(o_grid, y, row_dst);
+ evas_object_textgrid_update_add(o_grid, 0, y, TG_COLS, 1);
+ }
+
+ last_row = evas_object_textgrid_cellrow_get(o_grid, TG_ROWS - 1);
+ if (last_row)
+ {
+ _fill_random_row(last_row);
+ evas_object_textgrid_cellrow_set(o_grid, TG_ROWS - 1, last_row);
+ evas_object_textgrid_update_add(o_grid, 0, TG_ROWS - 1, TG_COLS, 1);
+ }
+
+ FPS_STD(NAME);
+}
+
+static void _key(const char *key)
+{
+ KEY_STD;
+}
+
+# endif
+#endif
+
+#ifdef UI
+_ui_menu_item_add(ICON, NAME, FNAME);
+#endif
+
+#ifdef PROTO
+void FNAME(void);
+#endif
+
+#ifndef PROTO
+# ifndef UI
+void FNAME(void)
+{
+ ui_func_set(_key, _loop, _setup);
+}
+# endif
+#endif
+#undef FNAME
+#undef NAME
+#undef ICON
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