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-rw-r--r--src/3rdparty/freetype/src/cff/cf2ft.c700
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diff --git a/src/3rdparty/freetype/src/cff/cf2ft.c b/src/3rdparty/freetype/src/cff/cf2ft.c
deleted file mode 100644
index d2544a2345..0000000000
--- a/src/3rdparty/freetype/src/cff/cf2ft.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/***************************************************************************/
-/* */
-/* cf2ft.c */
-/* */
-/* FreeType Glue Component to Adobe's Interpreter (body). */
-/* */
-/* Copyright 2013-2014 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. */
-/* */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2font.h"
-#include "cf2error.h"
-
-
-#define CF2_MAX_SIZE cf2_intToFixed( 2000 ) /* max ppem */
-
-
- /*
- * This check should avoid most internal overflow cases. Clients should
- * generally respond to `Glyph_Too_Big' by getting a glyph outline
- * at EM size, scaling it and filling it as a graphics operation.
- *
- */
- static FT_Error
- cf2_checkTransform( const CF2_Matrix* transform,
- CF2_Int unitsPerEm )
- {
- CF2_Fixed maxScale;
-
-
- FT_ASSERT( unitsPerEm > 0 );
-
- if ( transform->a <= 0 || transform->d <= 0 )
- return FT_THROW( Invalid_Size_Handle );
-
- FT_ASSERT( transform->b == 0 && transform->c == 0 );
- FT_ASSERT( transform->tx == 0 && transform->ty == 0 );
-
- if ( unitsPerEm > 0x7FFF )
- return FT_THROW( Glyph_Too_Big );
-
- maxScale = FT_DivFix( CF2_MAX_SIZE, cf2_intToFixed( unitsPerEm ) );
-
- if ( transform->a > maxScale || transform->d > maxScale )
- return FT_THROW( Glyph_Too_Big );
-
- return FT_Err_Ok;
- }
-
-
- static void
- cf2_setGlyphWidth( CF2_Outline outline,
- CF2_Fixed width )
- {
- CFF_Decoder* decoder = outline->decoder;
-
-
- FT_ASSERT( decoder );
-
- decoder->glyph_width = cf2_fixedToInt( width );
- }
-
-
- /* Clean up font instance. */
- static void
- cf2_free_instance( void* ptr )
- {
- CF2_Font font = (CF2_Font)ptr;
-
-
- if ( font )
- {
- FT_Memory memory = font->memory;
-
-
- (void)memory;
- }
- }
-
-
- /********************************************/
- /* */
- /* functions for handling client outline; */
- /* FreeType uses coordinates in 26.6 format */
- /* */
- /********************************************/
-
- static void
- cf2_builder_moveTo( CF2_OutlineCallbacks callbacks,
- const CF2_CallbackParams params )
- {
- /* downcast the object pointer */
- CF2_Outline outline = (CF2_Outline)callbacks;
- CFF_Builder* builder;
-
- (void)params; /* only used in debug mode */
-
-
- FT_ASSERT( outline && outline->decoder );
- FT_ASSERT( params->op == CF2_PathOpMoveTo );
-
- builder = &outline->decoder->builder;
-
- /* note: two successive moves simply close the contour twice */
- cff_builder_close_contour( builder );
- builder->path_begun = 0;
- }
-
-
- static void
- cf2_builder_lineTo( CF2_OutlineCallbacks callbacks,
- const CF2_CallbackParams params )
- {
- FT_Error error;
-
- /* downcast the object pointer */
- CF2_Outline outline = (CF2_Outline)callbacks;
- CFF_Builder* builder;
-
-
- FT_ASSERT( outline && outline->decoder );
- FT_ASSERT( params->op == CF2_PathOpLineTo );
-
- builder = &outline->decoder->builder;
-
- if ( !builder->path_begun )
- {
- /* record the move before the line; also check points and set */
- /* `path_begun' */
- error = cff_builder_start_point( builder,
- params->pt0.x,
- params->pt0.y );
- if ( error )
- {
- if ( !*callbacks->error )
- *callbacks->error = error;
- return;
- }
- }
-
- /* `cff_builder_add_point1' includes a check_points call for one point */
- error = cff_builder_add_point1( builder,
- params->pt1.x,
- params->pt1.y );
- if ( error )
- {
- if ( !*callbacks->error )
- *callbacks->error = error;
- return;
- }
- }
-
-
- static void
- cf2_builder_cubeTo( CF2_OutlineCallbacks callbacks,
- const CF2_CallbackParams params )
- {
- FT_Error error;
-
- /* downcast the object pointer */
- CF2_Outline outline = (CF2_Outline)callbacks;
- CFF_Builder* builder;
-
-
- FT_ASSERT( outline && outline->decoder );
- FT_ASSERT( params->op == CF2_PathOpCubeTo );
-
- builder = &outline->decoder->builder;
-
- if ( !builder->path_begun )
- {
- /* record the move before the line; also check points and set */
- /* `path_begun' */
- error = cff_builder_start_point( builder,
- params->pt0.x,
- params->pt0.y );
- if ( error )
- {
- if ( !*callbacks->error )
- *callbacks->error = error;
- return;
- }
- }
-
- /* prepare room for 3 points: 2 off-curve, 1 on-curve */
- error = cff_check_points( builder, 3 );
- if ( error )
- {
- if ( !*callbacks->error )
- *callbacks->error = error;
- return;
- }
-
- cff_builder_add_point( builder,
- params->pt1.x,
- params->pt1.y, 0 );
- cff_builder_add_point( builder,
- params->pt2.x,
- params->pt2.y, 0 );
- cff_builder_add_point( builder,
- params->pt3.x,
- params->pt3.y, 1 );
- }
-
-
- static void
- cf2_outline_init( CF2_Outline outline,
- FT_Memory memory,
- FT_Error* error )
- {
- FT_MEM_ZERO( outline, sizeof ( CF2_OutlineRec ) );
-
- outline->root.memory = memory;
- outline->root.error = error;
-
- outline->root.moveTo = cf2_builder_moveTo;
- outline->root.lineTo = cf2_builder_lineTo;
- outline->root.cubeTo = cf2_builder_cubeTo;
- }
-
-
- /* get scaling and hint flag from GlyphSlot */
- static void
- cf2_getScaleAndHintFlag( CFF_Decoder* decoder,
- CF2_Fixed* x_scale,
- CF2_Fixed* y_scale,
- FT_Bool* hinted,
- FT_Bool* scaled )
- {
- FT_ASSERT( decoder && decoder->builder.glyph );
-
- /* note: FreeType scale includes a factor of 64 */
- *hinted = decoder->builder.glyph->hint;
- *scaled = decoder->builder.glyph->scaled;
-
- if ( *hinted )
- {
- *x_scale = ( decoder->builder.glyph->x_scale + 32 ) / 64;
- *y_scale = ( decoder->builder.glyph->y_scale + 32 ) / 64;
- }
- else
- {
- /* for unhinted outlines, `cff_slot_load' does the scaling, */
- /* thus render at `unity' scale */
-
- *x_scale = 0x0400; /* 1/64 as 16.16 */
- *y_scale = 0x0400;
- }
- }
-
-
- /* get units per em from `FT_Face' */
- /* TODO: should handle font matrix concatenation? */
- static FT_UShort
- cf2_getUnitsPerEm( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder && decoder->builder.face );
- FT_ASSERT( decoder->builder.face->root.units_per_EM );
-
- return decoder->builder.face->root.units_per_EM;
- }
-
-
- /* Main entry point: Render one glyph. */
- FT_LOCAL_DEF( FT_Error )
- cf2_decoder_parse_charstrings( CFF_Decoder* decoder,
- FT_Byte* charstring_base,
- FT_ULong charstring_len )
- {
- FT_Memory memory;
- FT_Error error = FT_Err_Ok;
- CF2_Font font;
-
-
- FT_ASSERT( decoder && decoder->cff );
-
- memory = decoder->builder.memory;
-
- /* CF2 data is saved here across glyphs */
- font = (CF2_Font)decoder->cff->cf2_instance.data;
-
- /* on first glyph, allocate instance structure */
- if ( decoder->cff->cf2_instance.data == NULL )
- {
- decoder->cff->cf2_instance.finalizer =
- (FT_Generic_Finalizer)cf2_free_instance;
-
- if ( FT_ALLOC( decoder->cff->cf2_instance.data,
- sizeof ( CF2_FontRec ) ) )
- return FT_THROW( Out_Of_Memory );
-
- font = (CF2_Font)decoder->cff->cf2_instance.data;
-
- font->memory = memory;
-
- /* initialize a client outline, to be shared by each glyph rendered */
- cf2_outline_init( &font->outline, font->memory, &font->error );
- }
-
- /* save decoder; it is a stack variable and will be different on each */
- /* call */
- font->decoder = decoder;
- font->outline.decoder = decoder;
-
- {
- /* build parameters for Adobe engine */
-
- CFF_Builder* builder = &decoder->builder;
- CFF_Driver driver = (CFF_Driver)FT_FACE_DRIVER( builder->face );
-
- /* local error */
- FT_Error error2 = FT_Err_Ok;
- CF2_BufferRec buf;
- CF2_Matrix transform;
- CF2_F16Dot16 glyphWidth;
-
- FT_Bool hinted;
- FT_Bool scaled;
-
-
- /* FreeType has already looked up the GID; convert to */
- /* `RegionBuffer', assuming that the input has been validated */
- FT_ASSERT( charstring_base + charstring_len >= charstring_base );
-
- FT_ZERO( &buf );
- buf.start =
- buf.ptr = charstring_base;
- buf.end = charstring_base + charstring_len;
-
- FT_ZERO( &transform );
-
- cf2_getScaleAndHintFlag( decoder,
- &transform.a,
- &transform.d,
- &hinted,
- &scaled );
-
- font->renderingFlags = 0;
- if ( hinted )
- font->renderingFlags |= CF2_FlagsHinted;
- if ( scaled && !driver->no_stem_darkening )
- font->renderingFlags |= CF2_FlagsDarkened;
-
- font->darkenParams[0] = driver->darken_params[0];
- font->darkenParams[1] = driver->darken_params[1];
- font->darkenParams[2] = driver->darken_params[2];
- font->darkenParams[3] = driver->darken_params[3];
- font->darkenParams[4] = driver->darken_params[4];
- font->darkenParams[5] = driver->darken_params[5];
- font->darkenParams[6] = driver->darken_params[6];
- font->darkenParams[7] = driver->darken_params[7];
-
- /* now get an outline for this glyph; */
- /* also get units per em to validate scale */
- font->unitsPerEm = (CF2_Int)cf2_getUnitsPerEm( decoder );
-
- if ( scaled )
- {
- error2 = cf2_checkTransform( &transform, font->unitsPerEm );
- if ( error2 )
- return error2;
- }
-
- error2 = cf2_getGlyphOutline( font, &buf, &transform, &glyphWidth );
- if ( error2 )
- return FT_ERR( Invalid_File_Format );
-
- cf2_setGlyphWidth( &font->outline, glyphWidth );
-
- return FT_Err_Ok;
- }
- }
-
-
- /* get pointer to current FreeType subfont (based on current glyphID) */
- FT_LOCAL_DEF( CFF_SubFont )
- cf2_getSubfont( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- return decoder->current_subfont;
- }
-
-
- /* get `y_ppem' from `CFF_Size' */
- FT_LOCAL_DEF( CF2_Fixed )
- cf2_getPpemY( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder &&
- decoder->builder.face &&
- decoder->builder.face->root.size );
-
- /*
- * Note that `y_ppem' can be zero if there wasn't a call to
- * `FT_Set_Char_Size' or something similar. However, this isn't a
- * problem since we come to this place in the code only if
- * FT_LOAD_NO_SCALE is set (the other case gets caught by
- * `cf2_checkTransform'). The ppem value is needed to compute the stem
- * darkening, which is disabled for getting the unscaled outline.
- *
- */
- return cf2_intToFixed(
- decoder->builder.face->root.size->metrics.y_ppem );
- }
-
-
- /* get standard stem widths for the current subfont; */
- /* FreeType stores these as integer font units */
- /* (note: variable names seem swapped) */
- FT_LOCAL_DEF( CF2_Fixed )
- cf2_getStdVW( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- return cf2_intToFixed(
- decoder->current_subfont->private_dict.standard_height );
- }
-
-
- FT_LOCAL_DEF( CF2_Fixed )
- cf2_getStdHW( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- return cf2_intToFixed(
- decoder->current_subfont->private_dict.standard_width );
- }
-
-
- /* note: FreeType stores 1000 times the actual value for `BlueScale' */
- FT_LOCAL_DEF( void )
- cf2_getBlueMetrics( CFF_Decoder* decoder,
- CF2_Fixed* blueScale,
- CF2_Fixed* blueShift,
- CF2_Fixed* blueFuzz )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- *blueScale = FT_DivFix(
- decoder->current_subfont->private_dict.blue_scale,
- cf2_intToFixed( 1000 ) );
- *blueShift = cf2_intToFixed(
- decoder->current_subfont->private_dict.blue_shift );
- *blueFuzz = cf2_intToFixed(
- decoder->current_subfont->private_dict.blue_fuzz );
- }
-
-
- /* get blue values counts and arrays; the FreeType parser has validated */
- /* the counts and verified that each is an even number */
- FT_LOCAL_DEF( void )
- cf2_getBlueValues( CFF_Decoder* decoder,
- size_t* count,
- FT_Pos* *data )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- *count = decoder->current_subfont->private_dict.num_blue_values;
- *data = (FT_Pos*)
- &decoder->current_subfont->private_dict.blue_values;
- }
-
-
- FT_LOCAL_DEF( void )
- cf2_getOtherBlues( CFF_Decoder* decoder,
- size_t* count,
- FT_Pos* *data )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- *count = decoder->current_subfont->private_dict.num_other_blues;
- *data = (FT_Pos*)
- &decoder->current_subfont->private_dict.other_blues;
- }
-
-
- FT_LOCAL_DEF( void )
- cf2_getFamilyBlues( CFF_Decoder* decoder,
- size_t* count,
- FT_Pos* *data )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- *count = decoder->current_subfont->private_dict.num_family_blues;
- *data = (FT_Pos*)
- &decoder->current_subfont->private_dict.family_blues;
- }
-
-
- FT_LOCAL_DEF( void )
- cf2_getFamilyOtherBlues( CFF_Decoder* decoder,
- size_t* count,
- FT_Pos* *data )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- *count = decoder->current_subfont->private_dict.num_family_other_blues;
- *data = (FT_Pos*)
- &decoder->current_subfont->private_dict.family_other_blues;
- }
-
-
- FT_LOCAL_DEF( CF2_Int )
- cf2_getLanguageGroup( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- return decoder->current_subfont->private_dict.language_group;
- }
-
-
- /* convert unbiased subroutine index to `CF2_Buffer' and */
- /* return 0 on success */
- FT_LOCAL_DEF( CF2_Int )
- cf2_initGlobalRegionBuffer( CFF_Decoder* decoder,
- CF2_UInt idx,
- CF2_Buffer buf )
- {
- FT_ASSERT( decoder );
-
- FT_ZERO( buf );
-
- idx += (CF2_UInt)decoder->globals_bias;
- if ( idx >= decoder->num_globals )
- return TRUE; /* error */
-
- FT_ASSERT( decoder->globals );
-
- buf->start =
- buf->ptr = decoder->globals[idx];
- buf->end = decoder->globals[idx + 1];
-
- return FALSE; /* success */
- }
-
-
- /* convert AdobeStandardEncoding code to CF2_Buffer; */
- /* used for seac component */
- FT_LOCAL_DEF( FT_Error )
- cf2_getSeacComponent( CFF_Decoder* decoder,
- CF2_Int code,
- CF2_Buffer buf )
- {
- CF2_Int gid;
- FT_Byte* charstring;
- FT_ULong len;
- FT_Error error;
-
-
- FT_ASSERT( decoder );
-
- FT_ZERO( buf );
-
-#ifdef FT_CONFIG_OPTION_INCREMENTAL
- /* Incremental fonts don't necessarily have valid charsets. */
- /* They use the character code, not the glyph index, in this case. */
- if ( decoder->builder.face->root.internal->incremental_interface )
- gid = code;
- else
-#endif /* FT_CONFIG_OPTION_INCREMENTAL */
- {
- gid = cff_lookup_glyph_by_stdcharcode( decoder->cff, code );
- if ( gid < 0 )
- return FT_THROW( Invalid_Glyph_Format );
- }
-
- error = cff_get_glyph_data( decoder->builder.face,
- (CF2_UInt)gid,
- &charstring,
- &len );
- /* TODO: for now, just pass the FreeType error through */
- if ( error )
- return error;
-
- /* assume input has been validated */
- FT_ASSERT( charstring + len >= charstring );
-
- buf->start = charstring;
- buf->end = charstring + len;
- buf->ptr = buf->start;
-
- return FT_Err_Ok;
- }
-
-
- FT_LOCAL_DEF( void )
- cf2_freeSeacComponent( CFF_Decoder* decoder,
- CF2_Buffer buf )
- {
- FT_ASSERT( decoder );
-
- cff_free_glyph_data( decoder->builder.face,
- (FT_Byte**)&buf->start,
- (FT_ULong)( buf->end - buf->start ) );
- }
-
-
- FT_LOCAL_DEF( CF2_Int )
- cf2_initLocalRegionBuffer( CFF_Decoder* decoder,
- CF2_UInt idx,
- CF2_Buffer buf )
- {
- FT_ASSERT( decoder );
-
- FT_ZERO( buf );
-
- idx += (CF2_UInt)decoder->locals_bias;
- if ( idx >= decoder->num_locals )
- return TRUE; /* error */
-
- FT_ASSERT( decoder->locals );
-
- buf->start =
- buf->ptr = decoder->locals[idx];
- buf->end = decoder->locals[idx + 1];
-
- return FALSE; /* success */
- }
-
-
- FT_LOCAL_DEF( CF2_Fixed )
- cf2_getDefaultWidthX( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- return cf2_intToFixed(
- decoder->current_subfont->private_dict.default_width );
- }
-
-
- FT_LOCAL_DEF( CF2_Fixed )
- cf2_getNominalWidthX( CFF_Decoder* decoder )
- {
- FT_ASSERT( decoder && decoder->current_subfont );
-
- return cf2_intToFixed(
- decoder->current_subfont->private_dict.nominal_width );
- }
-
-
- FT_LOCAL_DEF( void )
- cf2_outline_reset( CF2_Outline outline )
- {
- CFF_Decoder* decoder = outline->decoder;
-
-
- FT_ASSERT( decoder );
-
- outline->root.windingMomentum = 0;
-
- FT_GlyphLoader_Rewind( decoder->builder.loader );
- }
-
-
- FT_LOCAL_DEF( void )
- cf2_outline_close( CF2_Outline outline )
- {
- CFF_Decoder* decoder = outline->decoder;
-
-
- FT_ASSERT( decoder );
-
- cff_builder_close_contour( &decoder->builder );
-
- FT_GlyphLoader_Add( decoder->builder.loader );
- }
-
-
-/* END */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 21:00:33 +0000