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Introduce subpixel text positioning within rencache

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In order to fix the issue with cursor positioning a subpixel-aware draw
text operation within rencache was required.

With this modification the cursor positioning problem is completely
resolved.

A new function renderer.draw_text_subpixel is introduced to perform
consecutive, inline, text drawings with subpixel accuracy.
This commit is contained in:
Francesco Abbate
2021-03-06 18:12:02 +01:00
parent 9ff6a0325e
commit 3426bc5d73
6 changed files with 51 additions and 24 deletions
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src/renderer.h
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@@ -42,5 +42,6 @@ int ren_font_subpixel_round(int width, int subpixel_scale, int orientation);
void ren_draw_rect(RenRect rect, RenColor color);
void ren_draw_image(RenImage *image, RenRect *sub, int x, int y, RenColor color);
void ren_draw_text(RenFont *font, const char *text, int x, int y, RenColor color);
void ren_draw_text_subpixel(RenFont *font, const char *text, int x_subpixel, int y, RenColor color);
#endif