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Fix #790, don't rotate glyph positions with Raqm 0.9.0+ 

Raqm will apply the transformation matrix set on the FT_Face itself.
master
Khaled Hosny 2022-08-01 19:24:46 +02:00
parent 39e51aaaa4
commit 52b4da0967
1 changed files with 14 additions and 1 deletions
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15
src/gdft.c
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@ -431,11 +431,14 @@ gdTcl_UtfToUniChar (const char *str, Tcl_UniChar * chPtr)
#ifdef HAVE_LIBRAQM
#include <raqm.h>
#else
#define RAQM_VERSION_ATLEAST(a,b,c) 0
#endif
typedef struct {
unsigned int index;
FT_Pos x_advance;
FT_Pos y_advance;
FT_Pos x_offset;
FT_Pos y_offset;
uint32_t cluster;
@ -483,6 +486,7 @@ textLayout(uint32_t *text, int len,
info[i].x_offset = glyphs[i].x_offset;
info[i].y_offset = glyphs[i].y_offset;
info[i].x_advance = glyphs[i].x_advance;
info[i].y_advance = glyphs[i].y_advance;
info[i].cluster = glyphs[i].cluster;
}
@ -520,6 +524,7 @@ textLayout(uint32_t *text, int len,
if (delta.x != 0)
info[count - 1].x_advance += delta.x;
info[count].x_advance = face->glyph->metrics.horiAdvance;
info[count].y_advance = 0;
info[count].cluster = count;
/* carriage returns or newlines */
@ -1131,7 +1136,7 @@ BGD_DECLARE(char *) gdImageStringFTEx (gdImagePtr im, int *brect, int fg, const
*/
gdCache_head_t *tc_cache;
/* Tuneable horizontal and vertical resolution in dots per inch */
int hdpi, vdpi, horiAdvance, xshow_alloc = 0, xshow_pos = 0;
int hdpi, vdpi, horiAdvance, vertAdvance, xshow_alloc = 0, xshow_pos = 0;
FT_Size platform_specific, platform_independent;
if (strex) {
@ -1468,6 +1473,7 @@ BGD_DECLARE(char *) gdImageStringFTEx (gdImagePtr im, int *brect, int fg, const
}
horiAdvance = info[i].x_advance;
vertAdvance = info[i].y_advance;
if (brect) {
/* only if need brect */
@ -1539,15 +1545,22 @@ BGD_DECLARE(char *) gdImageStringFTEx (gdImagePtr im, int *brect, int fg, const
(the estimate was rounded up to next 1/METRIC_RES, so this should fit) */
FT_Pos pen_x = penf.x + info[i].x_offset;
FT_Pos pen_y = penf.y - info[i].y_offset;
#if defined(HAVE_LIBRAQM) && RAQM_VERSION_ATLEAST (0, 9, 0)
gdft_draw_bitmap (tc_cache, im, fg, bm->bitmap,
(int)(x + pen_x*hdpi/(METRIC_RES*64) + bm->left),
(int)(y - pen_y*vdpi/(METRIC_RES*64) - bm->top));
#else
gdft_draw_bitmap (tc_cache, im, fg, bm->bitmap,
(int)(x + (pen_x * cos_a + pen_y * sin_a)*hdpi/(METRIC_RES*64) + bm->left),
(int)(y - (pen_x * sin_a - pen_y * cos_a)*vdpi/(METRIC_RES*64) - bm->top));
#endif
FT_Done_Glyph (image);
}
penf.x += horiAdvance;
penf.y += vertAdvance;
}
gdFree(text);