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| author | Werner Lemberg <wl@gnu.org> | 2016-07-17 22:40:31 +0200 |
|---|---|---|
| committer | Werner Lemberg <wl@gnu.org> | 2016-07-17 22:40:31 +0200 |
| commit | 8c93013ca3479d1b7e702240187730cc3173f99f (patch) | |
| tree | b5e208c564cc5a4f74dcb5726dba5eac4f9bda46 | |
| parent | e0843609616c5f12b3d1697499c839d3e89f96fb (diff) | |
| download | freetype2-8c93013ca3479d1b7e702240187730cc3173f99f.tar.gz | |
[truetype] Add support for Apple's
GETDATA[], opcode 0x92
bytecode instruction. It always returns 17, and we have absolutely
no idea what it is good for...
* src/truetype/ttinterp.c (Pop_Push_Count, opcode_name): Updated.
(Ins_GETDATA): New function.
(TT_RunIns): Add it.
| -rw-r--r-- | ChangeLog | 13 | ||||
| -rw-r--r-- | src/truetype/ttinterp.c | 25 |
2 files changed, 35 insertions, 3 deletions
@@ -1,5 +1,18 @@ 2016-07-16 Werner Lemberg <wl@gnu.org> + [truetype] Add support for Apple's + + GETDATA[], opcode 0x92 + + bytecode instruction. It always returns 17, and we have absolutely + no idea what it is good for... + + * src/truetype/ttinterp.c (Pop_Push_Count, opcode_name): Updated. + (Ins_GETDATA): New function. + (TT_RunIns): Add it. + +2016-07-16 Werner Lemberg <wl@gnu.org> + [truetype] Add bytecode support for GX variation fonts. This commit implements undocumented (but confirmed) stuff from diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c index 3851b7a2f..3883e67b2 100644 --- a/src/truetype/ttinterp.c +++ b/src/truetype/ttinterp.c @@ -784,7 +784,7 @@ /* INS_$90 */ PACK( 0, 0 ), /* GETVAR */ PACK( 0, 0 ), /* will be handled specially */ - /* INS_$92 */ PACK( 0, 0 ), + /* GETDATA */ PACK( 0, 1 ), /* INS_$93 */ PACK( 0, 0 ), /* INS_$94 */ PACK( 0, 0 ), /* INS_$95 */ PACK( 0, 0 ), @@ -1071,7 +1071,7 @@ #else "7 INS_$91", #endif - "7 INS_$92", + "7 GETDATA", "7 INS_$93", "7 INS_$94", "7 INS_$95", @@ -7400,7 +7400,7 @@ /*************************************************************************/ /* */ /* GETVARIATION[]: get normalized variation (blend) coordinates */ - /* Opcode range: 0x24 */ + /* Opcode range: 0x91 */ /* Stack: --> f2.14... */ /* */ /* XXX: UNDOCUMENTED! There is no documentation from Apple for this */ @@ -7429,6 +7429,21 @@ #endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + /*************************************************************************/ + /* */ + /* GETDATA[]: no idea what this is good for */ + /* Opcode range: 0x92 */ + /* Stack: --> 17 */ + /* */ + /* XXX: UNDOCUMENTED! There is no documentation from Apple for this */ + /* very weird bytecode instruction. */ + /* */ + static void + Ins_GETDATA( FT_Long* args ) + { + args[0] = 17; + } + static void Ins_UNKNOWN( TT_ExecContext exc ) @@ -8191,6 +8206,10 @@ break; #endif + case 0x92: + Ins_GETDATA( args ); + break; + default: if ( opcode >= 0xE0 ) Ins_MIRP( exc, args ); |