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| 3918 | Serge | 1 | /***************************************************************************/ |
| 2 | /* */ |
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| 3 | /* cf2stack.h */ |
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| 4 | /* */ |
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| 5 | /* Adobe's code for emulating a CFF stack (specification). */ |
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| 6 | /* */ |
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| 7 | /* Copyright 2007-2013 Adobe Systems Incorporated. */ |
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| 8 | /* */ |
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| 9 | /* This software, and all works of authorship, whether in source or */ |
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| 10 | /* object code form as indicated by the copyright notice(s) included */ |
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| 11 | /* herein (collectively, the "Work") is made available, and may only be */ |
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| 12 | /* used, modified, and distributed under the FreeType Project License, */ |
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| 13 | /* LICENSE.TXT. Additionally, subject to the terms and conditions of the */ |
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| 14 | /* FreeType Project License, each contributor to the Work hereby grants */ |
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| 15 | /* to any individual or legal entity exercising permissions granted by */ |
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| 16 | /* the FreeType Project License and this section (hereafter, "You" or */ |
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| 17 | /* "Your") a perpetual, worldwide, non-exclusive, no-charge, */ |
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| 18 | /* royalty-free, irrevocable (except as stated in this section) patent */ |
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| 19 | /* license to make, have made, use, offer to sell, sell, import, and */ |
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| 20 | /* otherwise transfer the Work, where such license applies only to those */ |
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| 21 | /* patent claims licensable by such contributor that are necessarily */ |
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| 22 | /* infringed by their contribution(s) alone or by combination of their */ |
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| 23 | /* contribution(s) with the Work to which such contribution(s) was */ |
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| 24 | /* submitted. If You institute patent litigation against any entity */ |
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| 25 | /* (including a cross-claim or counterclaim in a lawsuit) alleging that */ |
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| 26 | /* the Work or a contribution incorporated within the Work constitutes */ |
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| 27 | /* direct or contributory patent infringement, then any patent licenses */ |
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| 28 | /* granted to You under this License for that Work shall terminate as of */ |
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| 29 | /* the date such litigation is filed. */ |
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| 30 | /* */ |
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| 31 | /* By using, modifying, or distributing the Work you indicate that you */ |
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| 32 | /* have read and understood the terms and conditions of the */ |
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| 33 | /* FreeType Project License as well as those provided in this section, */ |
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| 34 | /* and you accept them fully. */ |
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| 35 | /* */ |
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| 36 | /***************************************************************************/ |
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| 37 | |||
| 38 | |||
| 39 | #ifndef __CF2STACK_H__ |
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| 40 | #define __CF2STACK_H__ |
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| 41 | |||
| 42 | |||
| 43 | FT_BEGIN_HEADER |
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| 44 | |||
| 45 | |||
| 46 | /* CFF operand stack; specified maximum of 48 or 192 values */ |
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| 47 | typedef struct CF2_StackNumber_ |
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| 48 | { |
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| 49 | union |
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| 50 | { |
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| 51 | CF2_Fixed r; /* 16.16 fixed point */ |
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| 52 | CF2_Frac f; /* 2.30 fixed point (for font matrix) */ |
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| 53 | CF2_Int i; |
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| 54 | } u; |
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| 55 | |||
| 56 | CF2_NumberType type; |
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| 57 | |||
| 58 | } CF2_StackNumber; |
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| 59 | |||
| 60 | |||
| 61 | typedef struct CF2_StackRec_ |
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| 62 | { |
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| 63 | FT_Memory memory; |
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| 64 | FT_Error* error; |
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| 65 | CF2_StackNumber buffer[CF2_OPERAND_STACK_SIZE]; |
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| 66 | CF2_StackNumber* top; |
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| 67 | |||
| 68 | } CF2_StackRec, *CF2_Stack; |
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| 69 | |||
| 70 | |||
| 71 | FT_LOCAL( CF2_Stack ) |
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| 72 | cf2_stack_init( FT_Memory memory, |
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| 73 | FT_Error* error ); |
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| 74 | FT_LOCAL( void ) |
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| 75 | cf2_stack_free( CF2_Stack stack ); |
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| 76 | |||
| 77 | FT_LOCAL( CF2_UInt ) |
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| 78 | cf2_stack_count( CF2_Stack stack ); |
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| 79 | |||
| 80 | FT_LOCAL( void ) |
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| 81 | cf2_stack_pushInt( CF2_Stack stack, |
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| 82 | CF2_Int val ); |
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| 83 | FT_LOCAL( void ) |
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| 84 | cf2_stack_pushFixed( CF2_Stack stack, |
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| 85 | CF2_Fixed val ); |
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| 86 | |||
| 87 | FT_LOCAL( CF2_Int ) |
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| 88 | cf2_stack_popInt( CF2_Stack stack ); |
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| 89 | FT_LOCAL( CF2_Fixed ) |
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| 90 | cf2_stack_popFixed( CF2_Stack stack ); |
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| 91 | |||
| 92 | FT_LOCAL( CF2_Fixed ) |
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| 93 | cf2_stack_getReal( CF2_Stack stack, |
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| 94 | CF2_UInt idx ); |
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| 95 | |||
| 96 | FT_LOCAL( void ) |
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| 97 | cf2_stack_clear( CF2_Stack stack ); |
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| 98 | |||
| 99 | |||
| 100 | FT_END_HEADER |
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| 101 | |||
| 102 | |||
| 103 | #endif /* __CF2STACK_H__ */ |
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| 104 | |||
| 105 | |||
| 106 | /* END */ |