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grub2/0138-grub-core-font-font.c-blit_comb-do_blit-Make-static-.patch
Peter Jones f74b50e380 Rebase to upstream, fix a pile of bugs. The usual. 
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-06-12 15:37:08 -04:00

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From 84f37bce3a842058d6f33839e541d79cec384fab Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@ubuntu.com>
Date: Mon, 21 Jan 2013 21:03:26 +0000
Subject: [PATCH 138/482] * grub-core/font/font.c (blit_comb: do_blit): Make
static instead of nested. (blit_comb: add_device_width): Likewise.
---
ChangeLog | 6 +++
grub-core/font/font.c | 133 ++++++++++++++++++++++++++++----------------------
2 files changed, 80 insertions(+), 59 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 08c2c9f..a2edbc5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
2013-01-21 Colin Watson <cjwatson@ubuntu.com>
+ * grub-core/font/font.c (blit_comb: do_blit): Make static instead of
+ nested.
+ (blit_comb: add_device_width): Likewise.
+
+2013-01-21 Colin Watson <cjwatson@ubuntu.com>
+
Remove nested functions from USB iterators.
* include/grub/usb.h (grub_usb_iterate_hook_t): New type.
diff --git a/grub-core/font/font.c b/grub-core/font/font.c
index fca8c8d..6b54a84 100644
--- a/grub-core/font/font.c
+++ b/grub-core/font/font.c
@@ -1143,6 +1143,49 @@ grub_font_blit_glyph_mirror (struct grub_font_glyph *target,
}
}
+/* Context for blit_comb. */
+struct blit_comb_ctx
+{
+ struct grub_font_glyph *glyph;
+ int *device_width;
+ struct grub_video_signed_rect bounds;
+};
+
+/* Helper for blit_comb. */
+static void
+do_blit (struct grub_font_glyph *src, signed dx, signed dy,
+ struct blit_comb_ctx *ctx)
+{
+ if (ctx->glyph)
+ grub_font_blit_glyph (ctx->glyph, src, dx - ctx->glyph->offset_x,
+ (ctx->glyph->height + ctx->glyph->offset_y) + dy);
+ if (dx < ctx->bounds.x)
+ {
+ ctx->bounds.width += ctx->bounds.x - dx;
+ ctx->bounds.x = dx;
+ }
+ if (ctx->bounds.y > -src->height - dy)
+ {
+ ctx->bounds.height += ctx->bounds.y - (-src->height - dy);
+ ctx->bounds.y = (-src->height - dy);
+ }
+ if (dx + src->width - ctx->bounds.x >= (signed) ctx->bounds.width)
+ ctx->bounds.width = dx + src->width - ctx->bounds.x + 1;
+ if ((signed) ctx->bounds.height < src->height + (-src->height - dy)
+ - ctx->bounds.y)
+ ctx->bounds.height = src->height + (-src->height - dy) - ctx->bounds.y;
+}
+
+/* Helper for blit_comb. */
+static inline void
+add_device_width (int val, struct blit_comb_ctx *ctx)
+{
+ if (ctx->glyph)
+ ctx->glyph->device_width += val;
+ if (ctx->device_width)
+ *ctx->device_width += val;
+}
+
static void
blit_comb (const struct grub_unicode_glyph *glyph_id,
struct grub_font_glyph *glyph,
@@ -1150,63 +1193,34 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
struct grub_font_glyph *main_glyph,
struct grub_font_glyph **combining_glyphs, int *device_width)
{
- struct grub_video_signed_rect bounds;
+ struct blit_comb_ctx ctx = {
+ .glyph = glyph,
+ .device_width = device_width
+ };
unsigned i;
signed above_rightx, above_righty;
signed above_leftx, above_lefty;
signed below_rightx, below_righty;
signed min_devwidth = 0;
- auto void NESTED_FUNC_ATTR do_blit (struct grub_font_glyph *src,
- signed dx, signed dy);
- void NESTED_FUNC_ATTR do_blit (struct grub_font_glyph *src,
- signed dx, signed dy)
- {
- if (glyph)
- grub_font_blit_glyph (glyph, src, dx - glyph->offset_x,
- (glyph->height + glyph->offset_y) + dy);
- if (dx < bounds.x)
- {
- bounds.width += bounds.x - dx;
- bounds.x = dx;
- }
- if (bounds.y > -src->height - dy)
- {
- bounds.height += bounds.y - (-src->height - dy);
- bounds.y = (-src->height - dy);
- }
- if (dx + src->width - bounds.x >= (signed) bounds.width)
- bounds.width = dx + src->width - bounds.x + 1;
- if ((signed) bounds.height < src->height + (-src->height - dy) - bounds.y)
- bounds.height = src->height + (-src->height - dy) - bounds.y;
- }
-
- auto void add_device_width (int val);
- void add_device_width (int val)
- {
- if (glyph)
- glyph->device_width += val;
- if (device_width)
- *device_width += val;
- }
if (glyph)
glyph->device_width = main_glyph->device_width;
if (device_width)
*device_width = main_glyph->device_width;
- bounds.x = main_glyph->offset_x;
- bounds.y = main_glyph->offset_y;
- bounds.width = main_glyph->width;
- bounds.height = main_glyph->height;
+ ctx.bounds.x = main_glyph->offset_x;
+ ctx.bounds.y = main_glyph->offset_y;
+ ctx.bounds.width = main_glyph->width;
+ ctx.bounds.height = main_glyph->height;
above_rightx = main_glyph->offset_x + main_glyph->width;
- above_righty = bounds.y + bounds.height;
+ above_righty = ctx.bounds.y + ctx.bounds.height;
above_leftx = main_glyph->offset_x;
- above_lefty = bounds.y + bounds.height;
+ above_lefty = ctx.bounds.y + ctx.bounds.height;
- below_rightx = bounds.x + bounds.width;
- below_righty = bounds.y;
+ below_rightx = ctx.bounds.x + ctx.bounds.width;
+ below_righty = ctx.bounds.y;
for (i = 0; i < glyph_id->ncomb; i++)
{
@@ -1216,7 +1230,7 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
if (!combining_glyphs[i])
continue;
- targetx = (bounds.width - combining_glyphs[i]->width) / 2 + bounds.x;
+ targetx = (ctx.bounds.width - combining_glyphs[i]->width) / 2 + ctx.bounds.x;
/* CGJ is to avoid diacritics reordering. */
if (glyph_id->combining[i].code
== GRUB_UNICODE_COMBINING_GRAPHEME_JOINER)
@@ -1226,31 +1240,31 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
case GRUB_UNICODE_COMB_OVERLAY:
do_blit (combining_glyphs[i],
targetx,
- (bounds.height - combining_glyphs[i]->height) / 2
- - (bounds.height + bounds.y));
+ (ctx.bounds.height - combining_glyphs[i]->height) / 2
+ - (ctx.bounds.height + ctx.bounds.y), &ctx);
if (min_devwidth < combining_glyphs[i]->width)
min_devwidth = combining_glyphs[i]->width;
break;
case GRUB_UNICODE_COMB_ATTACHED_ABOVE_RIGHT:
- do_blit (combining_glyphs[i], above_rightx, -above_righty);
+ do_blit (combining_glyphs[i], above_rightx, -above_righty, &ctx);
above_rightx += combining_glyphs[i]->width;
break;
case GRUB_UNICODE_COMB_ABOVE_RIGHT:
do_blit (combining_glyphs[i], above_rightx,
- -(above_righty + combining_glyphs[i]->height));
+ -(above_righty + combining_glyphs[i]->height), &ctx);
above_rightx += combining_glyphs[i]->width;
break;
case GRUB_UNICODE_COMB_ABOVE_LEFT:
above_leftx -= combining_glyphs[i]->width;
do_blit (combining_glyphs[i], above_leftx,
- -(above_lefty + combining_glyphs[i]->height));
+ -(above_lefty + combining_glyphs[i]->height), &ctx);
break;
case GRUB_UNICODE_COMB_BELOW_RIGHT:
- do_blit (combining_glyphs[i], below_rightx, below_righty);
+ do_blit (combining_glyphs[i], below_rightx, below_righty, &ctx);
below_rightx += combining_glyphs[i]->width;
break;
@@ -1276,7 +1290,7 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
space = 1 + (grub_font_get_xheight (main_glyph->font)) / 8;
do_blit (combining_glyphs[i], targetx,
-(main_glyph->height + main_glyph->offset_y + space
- + combining_glyphs[i]->height));
+ + combining_glyphs[i]->height), &ctx);
if (min_devwidth < combining_glyphs[i]->width)
min_devwidth = combining_glyphs[i]->width;
break;
@@ -1300,16 +1314,16 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
case GRUB_UNICODE_STACK_ATTACHED_ABOVE:
do_blit (combining_glyphs[i], targetx,
- -(bounds.height + bounds.y + space
- + combining_glyphs[i]->height));
+ -(ctx.bounds.height + ctx.bounds.y + space
+ + combining_glyphs[i]->height), &ctx);
if (min_devwidth < combining_glyphs[i]->width)
min_devwidth = combining_glyphs[i]->width;
break;
case GRUB_UNICODE_COMB_HEBREW_DAGESH:
do_blit (combining_glyphs[i], targetx,
- -(bounds.height / 2 + bounds.y
- + combining_glyphs[i]->height / 2));
+ -(ctx.bounds.height / 2 + ctx.bounds.y
+ + combining_glyphs[i]->height / 2), &ctx);
if (min_devwidth < combining_glyphs[i]->width)
min_devwidth = combining_glyphs[i]->width;
break;
@@ -1340,7 +1354,8 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
space = 1 + (grub_font_get_xheight (main_glyph->font)) / 8;
case GRUB_UNICODE_STACK_ATTACHED_BELOW:
- do_blit (combining_glyphs[i], targetx, -(bounds.y - space));
+ do_blit (combining_glyphs[i], targetx, -(ctx.bounds.y - space),
+ &ctx);
if (min_devwidth < combining_glyphs[i]->width)
min_devwidth = combining_glyphs[i]->width;
break;
@@ -1373,22 +1388,22 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
main_glyph->device_width
+ combining_glyphs[i]->offset_x,
-(combining_glyphs[i]->height
- + combining_glyphs[i]->offset_y));
- add_device_width (combining_glyphs[i]->device_width);
+ + combining_glyphs[i]->offset_y), &ctx);
+ add_device_width (combining_glyphs[i]->device_width, &ctx);
}
}
}
add_device_width ((above_rightx >
below_rightx ? above_rightx : below_rightx) -
- (main_glyph->offset_x + main_glyph->width));
- add_device_width (above_leftx - main_glyph->offset_x);
+ (main_glyph->offset_x + main_glyph->width), &ctx);
+ add_device_width (above_leftx - main_glyph->offset_x, &ctx);
if (glyph && glyph->device_width < min_devwidth)
glyph->device_width = min_devwidth;
if (device_width && *device_width < min_devwidth)
*device_width = min_devwidth;
if (bounds_out)
- *bounds_out = bounds;
+ *bounds_out = ctx.bounds;
}
static struct grub_font_glyph *
--
1.8.2.1
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