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Evas textblock: Fixed word prerender, it now compiles and even mostly works, there are still some glitches (haven't benchmarked it though). 

SVN revision: 56517
This commit is contained in:
Tom Hacohen 2011-01-30 10:43:09 +00:00
parent e809000965
commit b7cd0dbabb
1 changed files with 88 additions and 79 deletions
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167
legacy/evas/src/lib/engines/common/evas_font_draw.c
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@ -30,7 +30,6 @@ struct prword
struct cinfo
{
int gl;
FT_UInt index;
struct
{
@ -50,7 +49,7 @@ struct cinfo
#if defined(METRIC_CACHE) || defined(WORD_CACHE)
LK(lock_words); // for word cache call
static Eina_Inlist *words = NULL;
static struct prword *evas_font_word_prerender(RGBA_Draw_Context *dc, const Eina_Unicode *text, Evas_Text_Props *intl_props, int len, RGBA_Font *fn, RGBA_Font_Int *fi,int use_kerning);
static struct prword *evas_font_word_prerender(RGBA_Draw_Context *dc, const Eina_Unicode *text, const Evas_Text_Props *intl_props, int len, RGBA_Font *fn, RGBA_Font_Int *fi,int use_kerning);
#endif
EAPI void
@ -411,12 +410,12 @@ evas_common_font_draw_internal(RGBA_Image *dst, RGBA_Draw_Context *dc, RGBA_Font
/* A fast strNlen would be nice (there is a wcsnlen strangely) */
len = eina_unicode_strnlen(text,WORD_CACHE_MAXLEN);
if (len > 2 && len < WORD_CACHE_MAXLEN)
if (len > 2 && (len < WORD_CACHE_MAXLEN))
{
struct prword *word;
word =
evas_font_word_prerender(dc, text, (Evas_Text_Props *)intl_props,
word =
evas_font_word_prerender(dc, text, intl_props,
len, fn, fi, use_kerning);
if (word)
{
@ -893,21 +892,18 @@ evas_common_font_draw(RGBA_Image *dst, RGBA_Draw_Context *dc, RGBA_Font *fn, int
/* Only used if cache is on */
#if defined(METRIC_CACHE) || defined(WORD_CACHE)
struct prword *
evas_font_word_prerender(RGBA_Draw_Context *dc, const Eina_Unicode *in_text, Evas_Text_Props *intl_props, int len, RGBA_Font *fn, RGBA_Font_Int *fi,int use_kerning)
evas_font_word_prerender(RGBA_Draw_Context *dc, const Eina_Unicode *in_text, const Evas_Text_Props *intl_props, int len, RGBA_Font *fn, RGBA_Font_Int *fi,int use_kerning)
{
int pen_x, pen_y;
struct cinfo *metrics;
const Eina_Unicode *text = in_text;
int chr;
FT_Face pface = NULL;
FT_UInt prev_index;
unsigned char *im;
int width;
int height, above, below, baseline, descent;
int i,j;
int char_index = 0; /* the index of the current char */
struct prword *w;
int last_delta = 0;
int gl;
EVAS_FONT_WALK_TEXT_INIT();
# ifndef METRIC_CACHE
gl = dc->font_ext.func.gl_new ? 1: 0;
@ -928,95 +924,106 @@ evas_font_word_prerender(RGBA_Draw_Context *dc, const Eina_Unicode *in_text, Eva
gl = dc->font_ext.func.gl_new ? 1: 0;
pen_x = pen_y = 0;
above = 0; below = 0; baseline = 0; height = 0; descent = 0;
metrics = malloc(sizeof(struct cinfo) * len);
/* First pass: Work out how big */
for (char_index = 0, chr = 0 ; *text ; text++, char_index ++)
/* First pass: Work out how big and populate */
/* It's a bit hackish to use index and fg here as they are internal,
* but that'll have to be good enough ATM */
#ifdef OT_SUPPORT
if (evas_common_font_ot_is_enabled() && intl_props->ot_data)
{
struct cinfo *ci = metrics + char_index;
ci->gl = *text;
ci->index = evas_common_font_glyph_search(fn, &fi, ci->gl);
LKL(fi->ft_mutex);
if (fi->src->current_size != fi->size)
{
FTLOCK();
FT_Activate_Size(fi->ft.size);
FTUNLOCK();
fi->src->current_size = fi->size;
}
ci->fg = evas_common_font_int_cache_glyph_get(fi, ci->index);
if (!ci->fg)
{
LKU(fi->ft_mutex);
continue;
}
if ((use_kerning) && (prev_index) && (ci->index) &&
(pface == fi->src->ft.face))
len = intl_props->ot_data->len;
metrics = malloc(sizeof(struct cinfo) * len);
EVAS_FONT_WALK_OT_TEXT_VISUAL_START()
{
int kern = 0;
# ifdef BIDI_SUPPORT
/* if it's rtl, the kerning matching should be reversed, i.e prev
* index is now the index and the other way around.
* There is a slight exception when there are compositing chars
* involved.*/
if (intl_props && intl_props->props &&
evas_bidi_is_rtl_char(intl_props, char_index) &&
ci->fg->glyph->advance.x >> 16 > 0)
struct cinfo *ci = metrics + char_index;
EVAS_FONT_WALK_OT_TEXT_WORK(EINA_FALSE);
/* Currently broken with invisible chars if (!visible) continue; */
ci->index = index;
ci->fg = fg;
if (gl)
{
if (evas_common_font_query_kerning(fi, ci->index, prev_index, &kern))
pen_x += EVAS_FONT_ROUND_26_6_TO_INT(kern);
ci->fg->ext_dat =dc->font_ext.func.gl_new(dc->font_ext.data,ci->fg);
ci->fg->ext_dat_free = dc->font_ext.func.gl_free;
}
else
{
if (evas_common_font_query_kerning(fi, prev_index, ci->index, &kern))
pen_x += EVAS_FONT_ROUND_26_6_TO_INT(kern);
}
# else
if (evas_common_font_query_kerning(fi, prev_index, ci->index, &kern))
pen_x += EVAS_FONT_ROUND_26_6_TO_INT(kern);
# endif
ci->bm.data = ci->fg->glyph_out->bitmap.buffer;
ci->bm.w = MAX(ci->fg->glyph_out->bitmap.pitch,
ci->fg->glyph_out->bitmap.width);
ci->bm.rows = ci->fg->glyph_out->bitmap.rows;
ci->bm.h = ci->fg->glyph_out->top;
above = ci->bm.rows - (ci->bm.rows - ci->bm.h);
below = ci->bm.rows - ci->bm.h;
if (below > descent) descent = below;
if (above > baseline) baseline = above;
ci->pos.x = EVAS_FONT_WALK_PEN_X + ci->fg->glyph_out->left;
ci->pos.y = EVAS_FONT_WALK_PEN_Y + ci->fg->glyph_out->top;
last_delta = EVAS_FONT_WALK_OT_X_ADV -
(ci->bm.w + ci->fg->glyph_out->left);
}
pface = fi->src->ft.face;
LKU(fi->ft_mutex);
if (gl)
EVAS_FONT_WALK_OT_TEXT_END();
}
else
#endif
{
metrics = malloc(sizeof(struct cinfo) * len);
EVAS_FONT_WALK_DEFAULT_TEXT_LOGICAL_START()
{
ci->fg->ext_dat =dc->font_ext.func.gl_new(dc->font_ext.data,ci->fg);
ci->fg->ext_dat_free = dc->font_ext.func.gl_free;
struct cinfo *ci = metrics + char_index;
EVAS_FONT_WALK_DEFAULT_TEXT_WORK(EINA_FALSE);
/* Currently broken with invisible chars if (!visible) continue; */
ci->index = index;
ci->fg = fg;
if (gl)
{
ci->fg->ext_dat =dc->font_ext.func.gl_new(dc->font_ext.data,ci->fg);
ci->fg->ext_dat_free = dc->font_ext.func.gl_free;
}
ci->bm.data = ci->fg->glyph_out->bitmap.buffer;
ci->bm.w = MAX(ci->fg->glyph_out->bitmap.pitch,
ci->fg->glyph_out->bitmap.width);
ci->bm.rows = ci->fg->glyph_out->bitmap.rows;
ci->bm.h = ci->fg->glyph_out->top;
above = ci->bm.rows - (ci->bm.rows - ci->bm.h);
below = ci->bm.rows - ci->bm.h;
if (below > descent) descent = below;
if (above > baseline) baseline = above;
ci->pos.x = EVAS_FONT_WALK_PEN_X + ci->fg->glyph_out->left;
ci->pos.y = EVAS_FONT_WALK_PEN_Y + ci->fg->glyph_out->top;
last_delta = EVAS_FONT_WALK_DEFAULT_X_ADV -
(ci->bm.w + ci->fg->glyph_out->left);
}
ci->bm.data = ci->fg->glyph_out->bitmap.buffer;
ci->bm.w = MAX(ci->fg->glyph_out->bitmap.pitch,
ci->fg->glyph_out->bitmap.width);
ci->bm.rows = ci->fg->glyph_out->bitmap.rows;
ci->bm.h = ci->fg->glyph_out->top;
above = ci->bm.rows - (ci->bm.rows - ci->bm.h);
below = ci->bm.rows - ci->bm.h;
if (below > descent) descent = below;
if (above > baseline) baseline = above;
ci->pos.x = pen_x + ci->fg->glyph_out->left;
ci->pos.y = pen_y + ci->fg->glyph_out->top;
pen_x += ci->fg->glyph->advance.x >> 16;
prev_index = ci->index;
EVAS_FONT_WALK_DEFAULT_TEXT_END();
}
/* First loop done */
width = pen_x;
width = EVAS_FONT_WALK_PEN_X;
if (last_delta < 0)
width -= last_delta;
width = (width & 0x7) ? width + (8 - (width & 0x7)) : width;
height = baseline + descent;
if (!gl)
{
im = calloc(height, width);
for (i = 0 ; i < char_index ; i ++)
for (i = 0 ; i < len ; i ++)
{
struct cinfo *ci = metrics + i;
for (j = 0 ; j < ci->bm.rows ; j ++)
memcpy(im + ci->pos.x + (j + baseline - ci->bm.h) * width, ci->bm.data + j * ci->bm.w, ci->bm.w);
{
int correction; /* Used to remove negative inset and such */
if (ci->pos.x < 0)
correction = -ci->pos.x;
else
correction = 0;
memcpy(im + ci->pos.x + (j + baseline - ci->bm.h) * width +
correction,
ci->bm.data + j * ci->bm.w + correction,
ci->bm.w - correction);
}
}
}
else
@ -1034,7 +1041,9 @@ evas_font_word_prerender(RGBA_Draw_Context *dc, const Eina_Unicode *in_text, Eva
save->size = fi->size;
save->len = len;
save->im = im;
save->width = pen_x;
save->width = EVAS_FONT_WALK_PEN_X;
if (last_delta < 0)
save->width += last_delta;
save->roww = width;
save->height = height;
save->baseline = baseline;