[truetype] Add bytecode support for GX variation fonts

System Internals / FreeType - Werner Lemberg [gnu.org] - 16 July 2016 11:46 UTC

This commit implements undocumented (but confirmed) stuff from Apple's old bytecode engine.

GETVARIATION[], opcode 0x91 This opcode pushes normalized variation coordinates for all axes onto the stack (in 2.14 format). Coordinate of first axis gets pushed first.

GETINFO[], selector bit 3 If GX variation support is enabled, bit 10 of the result is set to 1.

- src/truetype/ttinterp.c: Include FT_MULTIPLE_MASTERS_H. (opcode_name) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated. (Ins_GETINFO) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle selector bit 3, checking support for variation glyph hinting. (Ins_GETVARIATION) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New function to implement opcode 0x91. (TT_RunIns) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle opcode 0x91.

e084360 [truetype] Add bytecode support for GX variation fonts.
ChangeLog | 24 ++++++++++++++
src/truetype/ttinterp.c | 81 +++++++++++++++++++++++++++++++++++++++++++++--
2 files changed, 103 insertions(+), 2 deletions(-)

Upstream: git.savannah.gnu.org

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