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authorWlodekM <[email protected]>2024-06-16 10:35:45 +0300
committerWlodekM <[email protected]>2024-06-16 10:35:45 +0300
commitabef6da56913f1c55528103e60a50451a39628b1 (patch)
treeb3c8092471ecbb73e568cd0d336efa0e7871ee8d /src/freetype/psstack.h
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+/***************************************************************************/
+/*                                                                         */
+/*  psstack.h                                                              */
+/*                                                                         */
+/*    Adobe's code for emulating a CFF stack (specification).              */
+/*                                                                         */
+/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
+/*                                                                         */
+/*  This software, and all works of authorship, whether in source or       */
+/*  object code form as indicated by the copyright notice(s) included      */
+/*  herein (collectively, the "Work") is made available, and may only be   */
+/*  used, modified, and distributed under the FreeType Project License,    */
+/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
+/*  FreeType Project License, each contributor to the Work hereby grants   */
+/*  to any individual or legal entity exercising permissions granted by    */
+/*  the FreeType Project License and this section (hereafter, "You" or     */
+/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
+/*  royalty-free, irrevocable (except as stated in this section) patent    */
+/*  license to make, have made, use, offer to sell, sell, import, and      */
+/*  otherwise transfer the Work, where such license applies only to those  */
+/*  patent claims licensable by such contributor that are necessarily      */
+/*  infringed by their contribution(s) alone or by combination of their    */
+/*  contribution(s) with the Work to which such contribution(s) was        */
+/*  submitted.  If You institute patent litigation against any entity      */
+/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
+/*  the Work or a contribution incorporated within the Work constitutes    */
+/*  direct or contributory patent infringement, then any patent licenses   */
+/*  granted to You under this License for that Work shall terminate as of  */
+/*  the date such litigation is filed.                                     */
+/*                                                                         */
+/*  By using, modifying, or distributing the Work you indicate that you    */
+/*  have read and understood the terms and conditions of the               */
+/*  FreeType Project License as well as those provided in this section,    */
+/*  and you accept them fully.                                             */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef PSSTACK_H_
+#define PSSTACK_H_
+
+
+FT_BEGIN_HEADER
+
+
+  /* CFF operand stack; specified maximum of 48 or 192 values */
+  typedef struct  CF2_StackNumber_
+  {
+    union
+    {
+      CF2_Fixed  r;      /* 16.16 fixed point */
+      CF2_Frac   f;      /* 2.30 fixed point (for font matrix) */
+      CF2_Int    i;
+    } u;
+
+    CF2_NumberType  type;
+
+  } CF2_StackNumber;
+
+
+  typedef struct  CF2_StackRec_
+  {
+    FT_Memory         memory;
+    FT_Error*         error;
+    CF2_StackNumber*  buffer;
+    CF2_StackNumber*  top;
+    FT_UInt           stackSize;
+
+  } CF2_StackRec, *CF2_Stack;
+
+
+  FT_LOCAL( CF2_Stack )
+  cf2_stack_init( FT_Memory  memory,
+                  FT_Error*  error,
+                  FT_UInt    stackSize );
+  FT_LOCAL( void )
+  cf2_stack_free( CF2_Stack  stack );
+
+  FT_LOCAL( CF2_UInt )
+  cf2_stack_count( CF2_Stack  stack );
+
+  FT_LOCAL( void )
+  cf2_stack_pushInt( CF2_Stack  stack,
+                     CF2_Int    val );
+  FT_LOCAL( void )
+  cf2_stack_pushFixed( CF2_Stack  stack,
+                       CF2_Fixed  val );
+
+  FT_LOCAL( CF2_Int )
+  cf2_stack_popInt( CF2_Stack  stack );
+  FT_LOCAL( CF2_Fixed )
+  cf2_stack_popFixed( CF2_Stack  stack );
+
+  FT_LOCAL( CF2_Fixed )
+  cf2_stack_getReal( CF2_Stack  stack,
+                     CF2_UInt   idx );
+  FT_LOCAL( void )
+  cf2_stack_setReal( CF2_Stack  stack,
+                     CF2_UInt   idx,
+                     CF2_Fixed  val );
+
+  FT_LOCAL( void )
+  cf2_stack_pop( CF2_Stack  stack,
+                 CF2_UInt   num );
+
+  FT_LOCAL( void )
+  cf2_stack_roll( CF2_Stack  stack,
+                  CF2_Int    count,
+                  CF2_Int    idx );
+
+  FT_LOCAL( void )
+  cf2_stack_clear( CF2_Stack  stack );
+
+
+FT_END_HEADER
+
+
+#endif /* PSSTACK_H_ */
+
+
+/* END */