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fontrender: fix width calculation of bounding box

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some glyphs would still draw right of the allocated space,
fix the width calculation to avoid this


Origin commit data
------------------
Commit: 24b02050c0
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2018-02-04 (Sun, 04 Feb 2018)
This commit is contained in:
Stefan Seyfried
2018-02-04 17:54:21 +01:00
committed by vanhofen
parent 754721a143
commit a1cd8d088f
1 changed files with 3 additions and 2 deletions
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5
src/driver/fontrenderer.cpp
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@@ -650,7 +650,8 @@ void Font::RenderString(int x, int y, const int width, const char *text, const f
if (x + glyph->xadvance + spread_by > left + width)
break;
#endif
int ap=(x + glyph->left) * sizeof(fb_pixel_t) + stride * (y - glyph->top);
int xoff = x + glyph->left;
int ap = xoff * sizeof(fb_pixel_t) + stride * (y - glyph->top);
uint8_t * d = ((uint8_t *)buff) + ap;
uint8_t * s = glyph->buffer;
int w = glyph->width;
@@ -662,7 +663,7 @@ void Font::RenderString(int x, int y, const int width, const char *text, const f
int ax;
for (ax = 0; ax < w + spread_by; ax++) {
/* width clip */
if (x + ax > left + width)
if (xoff + ax >= left + width)
break;
if (stylemodifier != Font::Embolden) {
/* do not paint the backgroundcolor (*s = 0) */