RetroZilla/gfx/cairo/max-font-size.patch

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2015-10-21 05:03:22 +02:00
Index: gfx/cairo/cairo/src/cairo-ft-font.c
===================================================================
RCS file: /home/rocallahan/mozilla-cvs-mirror/mozilla/gfx/cairo/cairo/src/cairo-ft-font.c,v
retrieving revision 1.1.4.2
diff -u -t -p -1 -2 -r1.1.4.2 cairo-ft-font.c
--- gfx/cairo/cairo/src/cairo-ft-font.c 4 Oct 2005 03:28:22 -0000 1.1.4.2
+++ gfx/cairo/cairo/src/cairo-ft-font.c 30 Nov 2006 01:59:23 -0000
@@ -66,24 +66,28 @@
#define PRIVATE_FLAG_HINT_METRICS (0x01 << 24)
#define PRIVATE_FLAG_EMBOLDEN (0x02 << 24)
#define PRIVATE_FLAGS_MASK (0xff << 24)
/* This is the max number of FT_face objects we keep open at once
*/
#define MAX_OPEN_FACES 10
/* This is the max number of FT_face objects we keep open at once
*/
#define MAX_OPEN_FACES 10
+/* This is the maximum font size we allow to be passed to FT_Set_Char_Size
+ */
+#define MAX_FONT_SIZE 1000
+
/*
* The simple 2x2 matrix is converted into separate scale and shape
* factors so that hinting works right
*/
typedef struct _cairo_ft_font_transform {
double x_scale, y_scale;
double shape[2][2];
} cairo_ft_font_transform_t;
/*
* We create an object that corresponds to a single font on the disk;
@@ -627,29 +631,39 @@ _cairo_ft_unscaled_font_set_scale (cairo
mat.yx = - DOUBLE_TO_16_16(sf.shape[0][1]);
mat.xy = - DOUBLE_TO_16_16(sf.shape[1][0]);
mat.yy = DOUBLE_TO_16_16(sf.shape[1][1]);
unscaled->have_shape = (mat.xx != 0x10000 ||
mat.yx != 0x00000 ||
mat.xy != 0x00000 ||
mat.yy != 0x10000);
FT_Set_Transform(unscaled->face, &mat, NULL);
if ((unscaled->face->face_flags & FT_FACE_FLAG_SCALABLE) != 0) {
- pixel_width = sf.x_scale;
- pixel_height = sf.y_scale;
+ double x_scale = sf.x_scale;
+ double y_scale = sf.y_scale;
+ if (x_scale > MAX_FONT_SIZE) {
+ x_scale = MAX_FONT_SIZE;
+ }
+ if (y_scale > MAX_FONT_SIZE) {
+ y_scale = MAX_FONT_SIZE;
+ }
+
+ pixel_width = x_scale;
+ pixel_height = y_scale;
+
error = FT_Set_Char_Size (unscaled->face,
- sf.x_scale * 64.0,
- sf.y_scale * 64.0,
+ x_scale * 64.0,
+ y_scale * 64.0,
0, 0);
} else {
double min_distance = DBL_MAX;
int i;
int best_i = 0;
pixel_width = pixel_height = 0;
for (i = 0; i < unscaled->face->num_fixed_sizes; i++) {
#if HAVE_FT_BITMAP_SIZE_Y_PPEM
double size = unscaled->face->available_sizes[i].y_ppem / 64.;
#else