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DivestOS/Patches/LineageOS-17.1/android_external_freetype/364028-backport.patch
Tad f52adb2bc5
17.1 August ASB work 
Signed-off-by: Tad <tad@spotco.us>
2023-08-08 06:31:22 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Seigo Nonaka <nona@google.com>
Date: Tue, 2 May 2023 10:01:38 +0900
Subject: [PATCH] Cherrypick following three changes
[cherrypick 545bf3a27] [sfnt, truetype] Add `size_reset` to `MetricsVariations`.
[cherrypick daad10810] [truetype] tt_size_reset_height to take FT_Size
[cherrypick 51ad7b243] [services] FT_Size_Reset_Func to return FT_Error
Bug: 278221085
Test: TreeHugger
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:9fe9411db4b7e715a39c0ccf48d1e0328f1d8e7c)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:8d63b0bfcbaba361543fd9394b8d86907f52c97d)
Merged-In: I7e839b2a36e35c27974a82cc76e853996a7c7688
Change-Id: I7e839b2a36e35c27974a82cc76e853996a7c7688
---
include/freetype/internal/services/svmetric.h | 10 ++-
include/freetype/internal/tttypes.h | 10 ++-
src/cff/cffdrivr.c | 9 ++-
src/cff/cffobjs.c | 6 +-
src/sfnt/sfobjs.c | 14 ++--
src/sfnt/ttmtx.c | 2 +-
src/truetype/ttdriver.c | 7 +-
src/truetype/ttgxvar.c | 23 +++---
src/truetype/ttobjs.c | 70 +++++++++++--------
src/truetype/ttobjs.h | 6 +-
10 files changed, 99 insertions(+), 58 deletions(-)
diff --git a/include/freetype/internal/services/svmetric.h b/include/freetype/internal/services/svmetric.h
index 91de020bc..8eea460a0 100644
--- a/include/freetype/internal/services/svmetric.h
+++ b/include/freetype/internal/services/svmetric.h
@@ -77,6 +77,9 @@ FT_BEGIN_HEADER
typedef void
(*FT_Metrics_Adjust_Func)( FT_Face face );
+ typedef FT_Error
+ (*FT_Size_Reset_Func)( FT_Size size );
+
FT_DEFINE_SERVICE( MetricsVariations )
{
@@ -90,6 +93,7 @@ FT_BEGIN_HEADER
FT_VOrg_Adjust_Func vorg_adjust;
FT_Metrics_Adjust_Func metrics_adjust;
+ FT_Size_Reset_Func size_reset;
};
@@ -101,7 +105,8 @@ FT_BEGIN_HEADER
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
- metrics_adjust_ ) \
+ metrics_adjust_, \
+ size_reset_ ) \
static const FT_Service_MetricsVariationsRec class_ = \
{ \
hadvance_adjust_, \
@@ -111,7 +116,8 @@ FT_BEGIN_HEADER
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
- metrics_adjust_ \
+ metrics_adjust_, \
+ size_reset_ \
};
/* */
diff --git a/include/freetype/internal/tttypes.h b/include/freetype/internal/tttypes.h
index 4df6b298f..fd9f02821 100644
--- a/include/freetype/internal/tttypes.h
+++ b/include/freetype/internal/tttypes.h
@@ -1650,8 +1650,14 @@ FT_BEGIN_HEADER
void* mm;
/* a typeless pointer to the FT_Service_MetricsVariationsRec table */
- /* used to handle the HVAR, VVAR, and MVAR OpenType tables */
- void* var;
+ /* used to handle the HVAR, VVAR, and MVAR OpenType tables by the */
+ /* "truetype" driver */
+ void* tt_var;
+
+ /* a typeless pointer to the FT_Service_MetricsVariationsRec table */
+ /* used to handle the HVAR, VVAR, and MVAR OpenType tables by this */
+ /* TT_Face's driver */
+ void* face_var;
#endif
/* a typeless pointer to the PostScript Aux service */
diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c
index 997a734fb..6eaad8bbd 100644
--- a/src/cff/cffdrivr.c
+++ b/src/cff/cffdrivr.c
@@ -940,7 +940,8 @@
FT_UInt gindex,
FT_Int *avalue )
{
- FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var;
+ FT_Service_MetricsVariations
+ var = (FT_Service_MetricsVariations)face->tt_var;
return var->hadvance_adjust( FT_FACE( face ), gindex, avalue );
@@ -950,7 +951,8 @@
static void
cff_metrics_adjust( CFF_Face face )
{
- FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var;
+ FT_Service_MetricsVariations
+ var = (FT_Service_MetricsVariations)face->tt_var;
var->metrics_adjust( FT_FACE( face ) );
@@ -969,7 +971,8 @@
(FT_BSB_Adjust_Func) NULL, /* bsb_adjust */
(FT_VOrg_Adjust_Func) NULL, /* vorg_adjust */
- (FT_Metrics_Adjust_Func) cff_metrics_adjust /* metrics_adjust */
+ (FT_Metrics_Adjust_Func) cff_metrics_adjust, /* metrics_adjust */
+ (FT_Size_Reset_Func) NULL /* size_reset */
)
#endif
diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c
index b3f0f99e3..97d8f8e9f 100644
--- a/src/cff/cffobjs.c
+++ b/src/cff/cffobjs.c
@@ -709,8 +709,10 @@
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
{
- FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
- FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var;
+ FT_Service_MultiMasters
+ mm = (FT_Service_MultiMasters)face->mm;
+ FT_Service_MetricsVariations
+ var = (FT_Service_MetricsVariations)face->face_var;
FT_UInt instance_index = (FT_UInt)face_index >> 16;
diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c
index 9dfc20e83..764cd23e9 100644
--- a/src/sfnt/sfobjs.c
+++ b/src/sfnt/sfobjs.c
@@ -896,17 +896,23 @@
0 );
}
- if ( !face->var )
+ if ( !face->tt_var )
{
/* we want the metrics variations interface */
/* from the `truetype' module only */
FT_Module tt_module = FT_Get_Module( library, "truetype" );
- face->var = ft_module_get_service( tt_module,
- FT_SERVICE_ID_METRICS_VARIATIONS,
- 0 );
+ face->tt_var = ft_module_get_service( tt_module,
+ FT_SERVICE_ID_METRICS_VARIATIONS,
+ 0 );
}
+
+ if ( !face->face_var )
+ face->face_var = ft_module_get_service(
+ &face->root.driver->root,
+ FT_SERVICE_ID_METRICS_VARIATIONS,
+ 0 );
#endif
FT_TRACE2(( "SFNT driver\n" ));
diff --git a/src/sfnt/ttmtx.c b/src/sfnt/ttmtx.c
index 8edf4e6a3..89e1fb5a5 100644
--- a/src/sfnt/ttmtx.c
+++ b/src/sfnt/ttmtx.c
@@ -240,7 +240,7 @@
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
FT_Service_MetricsVariations var =
- (FT_Service_MetricsVariations)face->var;
+ (FT_Service_MetricsVariations)face->tt_var;
#endif
diff --git a/src/truetype/ttdriver.c b/src/truetype/ttdriver.c
index eac736c4a..22e897053 100644
--- a/src/truetype/ttdriver.c
+++ b/src/truetype/ttdriver.c
@@ -307,7 +307,7 @@
/* use the scaled metrics, even when tt_size_reset fails */
FT_Select_Metrics( size->face, strike_index );
- tt_size_reset( ttsize, 0 ); /* ignore return value */
+ tt_size_reset( ttsize ); /* ignore return value */
}
else
{
@@ -359,7 +359,7 @@
if ( FT_IS_SCALABLE( size->face ) )
{
- error = tt_size_reset( ttsize, 0 );
+ error = tt_size_reset( ttsize );
#ifdef TT_USE_BYTECODE_INTERPRETER
/* for the `MPS' bytecode instruction we need the point size */
@@ -523,7 +523,8 @@
(FT_BSB_Adjust_Func) NULL, /* bsb_adjust */
(FT_VOrg_Adjust_Func) NULL, /* vorg_adjust */
- (FT_Metrics_Adjust_Func) tt_apply_mvar /* metrics_adjust */
+ (FT_Metrics_Adjust_Func) tt_apply_mvar, /* metrics_adjust */
+ (FT_Size_Reset_Func) tt_size_reset_height /* size_reset */
)
#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */
diff --git a/src/truetype/ttgxvar.c b/src/truetype/ttgxvar.c
index 3df50d630..f2d2ccabb 100644
--- a/src/truetype/ttgxvar.c
+++ b/src/truetype/ttgxvar.c
@@ -1300,15 +1300,14 @@
static FT_Error
- tt_size_reset_iterator( FT_ListNode node,
+ ft_size_reset_iterator( FT_ListNode node,
void* user )
{
- TT_Size size = (TT_Size)node->data;
+ FT_Size size = (FT_Size)node->data;
+ FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)user;
- FT_UNUSED( user );
-
- tt_size_reset( size, 1 );
+ var->size_reset( size );
return FT_Err_Ok;
}
@@ -1370,6 +1369,9 @@
/* adjust all derived values */
{
+ FT_Service_MetricsVariations var =
+ (FT_Service_MetricsVariations)face->face_var;
+
FT_Face root = &face->root;
@@ -1396,11 +1398,12 @@
face->postscript.underlineThickness / 2;
root->underline_thickness = face->postscript.underlineThickness;
- /* iterate over all FT_Size objects and call `tt_size_reset' */
- /* to propagate the metrics changes */
- FT_List_Iterate( &root->sizes_list,
- tt_size_reset_iterator,
- NULL );
+ /* iterate over all FT_Size objects and call `var->size_reset' */
+ /* to propagate the metrics changes */
+ if ( var && var->size_reset )
+ FT_List_Iterate( &root->sizes_list,
+ ft_size_reset_iterator,
+ (void*)var );
}
}
diff --git a/src/truetype/ttobjs.c b/src/truetype/ttobjs.c
index df6c72a10..e22b6c3c7 100644
--- a/src/truetype/ttobjs.c
+++ b/src/truetype/ttobjs.c
@@ -1269,39 +1269,29 @@
/**************************************************************************
*
* @Function:
- * tt_size_reset
+ * tt_size_reset_height
*
* @Description:
- * Reset a TrueType size when resolutions and character dimensions
- * have been changed.
+ * Recompute a TrueType size's ascender, descender, and height
+ * when resolutions and character dimensions have been changed.
+ * Used for variation fonts as an iterator function.
*
* @Input:
- * size ::
- * A handle to the target size object.
- *
- * only_height ::
- * Only recompute ascender, descender, and height;
- * this flag is used for variation fonts where
- * `tt_size_reset' is used as an iterator function.
+ * ft_size ::
+ * A handle to the target TT_Size object. This function will be called
+ * through a `FT_Size_Reset_Func` pointer which takes `FT_Size`. This
+ * function must take `FT_Size` as a result. The passed `FT_Size` is
+ * expected to point to a `TT_Size`.
*/
FT_LOCAL_DEF( FT_Error )
- tt_size_reset( TT_Size size,
- FT_Bool only_height )
+ tt_size_reset_height( FT_Size ft_size )
{
- TT_Face face;
- FT_Size_Metrics* size_metrics;
-
-
- face = (TT_Face)size->root.face;
-
- /* nothing to do for CFF2 */
- if ( face->is_cff2 )
- return FT_Err_Ok;
+ TT_Size size = (TT_Size)ft_size;
+ TT_Face face = (TT_Face)size->root.face;
+ FT_Size_Metrics* size_metrics = &size->hinted_metrics;
size->ttmetrics.valid = FALSE;
- size_metrics = &size->hinted_metrics;
-
/* copy the result from base layer */
*size_metrics = size->root.metrics;
@@ -1328,12 +1318,34 @@
size->ttmetrics.valid = TRUE;
- if ( only_height )
- {
- /* we must not recompute the scaling values here since */
- /* `tt_size_reset' was already called (with only_height = 0) */
- return FT_Err_Ok;
- }
+ return FT_Err_Ok;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * tt_size_reset
+ *
+ * @Description:
+ * Reset a TrueType size when resolutions and character dimensions
+ * have been changed.
+ *
+ * @Input:
+ * size ::
+ * A handle to the target size object.
+ */
+ FT_LOCAL_DEF( FT_Error )
+ tt_size_reset( TT_Size size )
+ {
+ FT_Error error;
+ TT_Face face = (TT_Face)size->root.face;
+ FT_Size_Metrics* size_metrics = &size->hinted_metrics;
+
+
+ error = tt_size_reset_height( (FT_Size)size );
+ if ( error )
+ return error;
if ( face->header.Flags & 8 )
{
diff --git a/src/truetype/ttobjs.h b/src/truetype/ttobjs.h
index dcff3f7a0..99895794a 100644
--- a/src/truetype/ttobjs.h
+++ b/src/truetype/ttobjs.h
@@ -390,8 +390,10 @@ FT_BEGIN_HEADER
#endif /* TT_USE_BYTECODE_INTERPRETER */
FT_LOCAL( FT_Error )
- tt_size_reset( TT_Size size,
- FT_Bool only_height );
+ tt_size_reset_height( FT_Size size );
+
+ FT_LOCAL( FT_Error )
+ tt_size_reset( TT_Size size );
/**************************************************************************
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