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Speed-up gfxterm by slightly agglomerating mallocs.

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-05-04 15:07:13 +02:00
parent b7c036bce3
commit 22b06e9685
3 changed files with 45 additions and 44 deletions
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4
ChangeLog
View file

@ -1,3 +1,7 @@
2013-05-04 Vladimir Serbinenko <phcoder@gmail.com>
Speed-up gfxterm by slightly agglomerating mallocs.
2013-05-04 Vladimir Serbinenko <phcoder@gmail.com>
More video checks.

57
grub-core/term/gfxterm.c
View file

@ -49,7 +49,7 @@ struct grub_dirty_region
struct grub_colored_char
{
/* An Unicode codepoint. */
struct grub_unicode_glyph *code;
struct grub_unicode_glyph code;
/* Color values. */
grub_video_color_t fg_color;
@ -175,14 +175,8 @@ set_term_color (grub_uint8_t term_color)
static void
clear_char (struct grub_colored_char *c)
{
if (c->code)
{
grub_free (c->code->combining);
grub_free (c->code);
}
c->code = grub_unicode_glyph_from_code (' ');
if (!c->code)
grub_errno = GRUB_ERR_NONE;
grub_free (c->code.combining);
grub_unicode_set_glyph_from_code (&c->code, ' ');
c->fg_color = virtual_screen.fg_color;
c->bg_color = virtual_screen.bg_color;
}
@ -197,11 +191,7 @@ grub_virtual_screen_free (void)
for (i = 0;
i < virtual_screen.columns * virtual_screen.rows;
i++)
if (virtual_screen.text_buffer[i].code)
{
grub_free (virtual_screen.text_buffer[i].code->combining);
grub_free (virtual_screen.text_buffer[i].code);
}
grub_free (virtual_screen.text_buffer[i].code.combining);
grub_free (virtual_screen.text_buffer);
}
@ -277,7 +267,7 @@ grub_virtual_screen_setup (unsigned int x, unsigned int y,
/* Clear out text buffer. */
for (i = 0; i < virtual_screen.columns * virtual_screen.rows; i++)
{
virtual_screen.text_buffer[i].code = 0;
virtual_screen.text_buffer[i].code.combining = 0;
clear_char (&(virtual_screen.text_buffer[i]));
}
@ -418,12 +408,9 @@ grub_gfxterm_term_fini (struct grub_term_output *term __attribute__ ((unused)))
for (i = 0; i < virtual_screen.columns * virtual_screen.rows; i++)
{
if (virtual_screen.text_buffer[i].code)
{
grub_free (virtual_screen.text_buffer[i].code->combining);
grub_free (virtual_screen.text_buffer[i].code);
}
virtual_screen.text_buffer[i].code = 0;
grub_free (virtual_screen.text_buffer[i].code.combining);
virtual_screen.text_buffer[i].code.combining = 0;
virtual_screen.text_buffer[i].code.base = 0;
}
/* Clear error state. */
@ -634,11 +621,11 @@ paint_char (unsigned cx, unsigned cy)
p = (virtual_screen.text_buffer
+ cx + (cy * virtual_screen.columns));
if (!p->code)
if (!p->code.base)
return;
/* Get glyph for character. */
glyph = grub_font_construct_glyph (virtual_screen.font, p->code);
glyph = grub_font_construct_glyph (virtual_screen.font, &p->code);
if (!glyph)
{
grub_errno = GRUB_ERR_NONE;
@ -817,11 +804,7 @@ scroll_up (void)
/* Clear first line in text buffer. */
for (i = 0; i < virtual_screen.columns; i++)
if (virtual_screen.text_buffer[i].code)
{
grub_free (virtual_screen.text_buffer[i].code->combining);
grub_free (virtual_screen.text_buffer[i].code);
}
grub_free (virtual_screen.text_buffer[i].code.combining);
/* Scroll text buffer with one line to up. */
grub_memmove (virtual_screen.text_buffer,
@ -834,10 +817,7 @@ scroll_up (void)
for (i = virtual_screen.columns * (virtual_screen.rows - 1);
i < virtual_screen.columns * virtual_screen.rows;
i++)
{
virtual_screen.text_buffer[i].code = 0;
clear_char (&(virtual_screen.text_buffer[i]));
}
virtual_screen.total_scroll++;
}
@ -897,13 +877,8 @@ grub_gfxterm_putchar (struct grub_term_output *term,
p = (virtual_screen.text_buffer +
virtual_screen.cursor_x +
virtual_screen.cursor_y * virtual_screen.columns);
if (p->code)
{
grub_free (p->code->combining);
grub_free (p->code);
}
p->code = grub_unicode_glyph_dup (c);
if (!p->code)
grub_free (p->code.combining);
grub_unicode_set_glyph (&p->code, c);
grub_errno = GRUB_ERR_NONE;
p->fg_color = virtual_screen.fg_color;
p->bg_color = virtual_screen.bg_color;
@ -916,11 +891,9 @@ grub_gfxterm_putchar (struct grub_term_output *term,
for (i = 1; i < char_width && p + i <
virtual_screen.text_buffer + virtual_screen.columns
* virtual_screen.rows; i++)
if (p[i].code)
{
grub_free (p[i].code->combining);
grub_free (p[i].code);
p[i].code = NULL;
grub_free (p[i].code.combining);
p[i].code.base = 0;
}
}

24
include/grub/unicode.h
View file

@ -274,6 +274,21 @@ grub_unicode_glyph_dup (const struct grub_unicode_glyph *in)
return out;
}
static inline void
grub_unicode_set_glyph (struct grub_unicode_glyph *out,
const struct grub_unicode_glyph *in)
{
grub_memcpy (out, in, sizeof (*in));
if (in->combining)
{
out->combining = grub_malloc (in->ncomb * sizeof (out->combining[0]));
if (!out->combining)
return;
grub_memcpy (out->combining, in->combining,
in->ncomb * sizeof (out->combining[0]));
}
}
static inline struct grub_unicode_glyph *
grub_unicode_glyph_from_code (grub_uint32_t code)
{
@ -287,6 +302,15 @@ grub_unicode_glyph_from_code (grub_uint32_t code)
return ret;
}
static inline void
grub_unicode_set_glyph_from_code (struct grub_unicode_glyph *glyph,
grub_uint32_t code)
{
grub_memset (glyph, 0, sizeof (*glyph));
glyph->base = code;
}
grub_uint32_t
grub_unicode_mirror_code (grub_uint32_t in);
grub_uint32_t