Whitespace & documentation improvements.
This commit is contained in:
Werner Lemberg
parent
7227114043
commit
8262213192
@ -73,13 +73,15 @@
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/* profile is simply an array of scanline intersections on a given */
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/* dimension. A profile's main attributes are */
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/* */
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/* o its scanline position boundaries, i.e. `Ymin' and `Ymax'. */
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/* o its scanline position boundaries, i.e. `Ymin' and `Ymax' */
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/* */
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/* o an array of intersection coordinates for each scanline */
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/* between `Ymin' and `Ymax'. */
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/* between `Ymin' and `Ymax' */
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/* */
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/* o a direction, indicating whether it was built going `up' or */
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/* `down', as this is very important for filling rules. */
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/* `down', as this is very important for filling rules */
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/* */
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/* o its drop-out mode */
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/* */
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/* 2 - Sweeping the target map's scanlines in order to compute segment */
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/* `spans' which are then filled. Additionally, this pass */
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@ -89,15 +91,15 @@
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/* built from the bottom of the render pool, used as a stack. The */
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/* following graphics shows the profile list under construction: */
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/* */
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/* ____________________________________________________________ _ _ */
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/* | | | | | */
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/* | profile | coordinates for | profile | coordinates for |--> */
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/* | 1 | profile 1 | 2 | profile 2 |--> */
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/* |_________|___________________|_________|_________________|__ _ _ */
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/* __________________________________________________________ _ _ */
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/* | | | | | */
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/* | profile | coordinates for | profile | coordinates for |--> */
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/* | 1 | profile 1 | 2 | profile 2 |--> */
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/* |_________|_________________|_________|_________________|__ _ _ */
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/* */
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/* ^ ^ */
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/* | | */
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/* start of render pool top */
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/* ^ ^ */
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/* | | */
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/* start of render pool top */
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/* */
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/* The top of the profile stack is kept in the `top' variable. */
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/* */
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@ -200,7 +202,8 @@
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#define ft_memset memset
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#else /* _STANDALONE_ */
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#else /* !_STANDALONE_ */
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#include FT_INTERNAL_OBJECTS_H
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@ -216,7 +219,7 @@
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#define Raster_Err_Unsupported Raster_Err_Cannot_Render_Glyph
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#endif /* _STANDALONE_ */
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#endif /* !_STANDALONE_ */
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#ifndef FT_MEM_SET
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@ -374,7 +377,7 @@
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#define FT_UNUSED_RASTER do { } while ( 0 )
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#else /* FT_STATIC_RASTER */
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#else /* !FT_STATIC_RASTER */
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#define RAS_ARGS PWorker worker,
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@ -386,7 +389,7 @@
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#define FT_UNUSED_RASTER FT_UNUSED( worker )
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#endif /* FT_STATIC_RASTER */
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#endif /* !FT_STATIC_RASTER */
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typedef struct TWorker_ TWorker, *PWorker;
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@ -419,65 +422,65 @@
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#define IS_BOTTOM_OVERSHOOT( x ) ( CEILING( x ) - x >= ras.precision_half )
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#define IS_TOP_OVERSHOOT( x ) ( x - FLOOR( x ) >= ras.precision_half )
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/* Note that I have moved the location of some fields in the */
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/* structure to ensure that the most used variables are used */
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/* at the top. Thus, their offset can be coded with less */
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/* opcodes, and it results in a smaller executable. */
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/* The most used variables are positioned at the top of the structure. */
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/* Thus, their offset can be coded with less opcodes, resulting in a */
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/* smaller executable. */
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struct TWorker_
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{
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Int precision_bits; /* precision related variables */
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Int precision;
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Int precision_half;
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Long precision_mask;
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Int precision_shift;
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Int precision_step;
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Int precision_jitter;
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Int precision_bits; /* precision related variables */
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Int precision;
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Int precision_half;
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Long precision_mask;
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Int precision_shift;
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Int precision_step;
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Int precision_jitter;
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Int scale_shift; /* == precision_shift for bitmaps */
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Int scale_shift; /* == precision_shift for bitmaps */
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/* == precision_shift+1 for pixmaps */
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PLong buff; /* The profiles buffer */
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PLong sizeBuff; /* Render pool size */
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PLong maxBuff; /* Profiles buffer size */
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PLong top; /* Current cursor in buffer */
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PLong buff; /* The profiles buffer */
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PLong sizeBuff; /* Render pool size */
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PLong maxBuff; /* Profiles buffer size */
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PLong top; /* Current cursor in buffer */
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FT_Error error;
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FT_Error error;
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Int numTurns; /* number of Y-turns in outline */
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Int numTurns; /* number of Y-turns in outline */
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TPoint* arc; /* current Bezier arc pointer */
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TPoint* arc; /* current Bezier arc pointer */
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UShort bWidth; /* target bitmap width */
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PByte bTarget; /* target bitmap buffer */
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PByte gTarget; /* target pixmap buffer */
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UShort bWidth; /* target bitmap width */
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PByte bTarget; /* target bitmap buffer */
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PByte gTarget; /* target pixmap buffer */
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Long lastX, lastY, minY, maxY;
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Long lastX, lastY;
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Long minY, maxY;
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UShort num_Profs; /* current number of profiles */
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UShort num_Profs; /* current number of profiles */
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Bool fresh; /* signals a fresh new profile which */
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Bool fresh; /* signals a fresh new profile which */
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/* `start' field must be completed */
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Bool joint; /* signals that the last arc ended */
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Bool joint; /* signals that the last arc ended */
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/* exactly on a scanline. Allows */
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/* removal of doublets */
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PProfile cProfile; /* current profile */
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PProfile fProfile; /* head of linked list of profiles */
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PProfile gProfile; /* contour's first profile in case */
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PProfile cProfile; /* current profile */
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PProfile fProfile; /* head of linked list of profiles */
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PProfile gProfile; /* contour's first profile in case */
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/* of impact */
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TStates state; /* rendering state */
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TStates state; /* rendering state */
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FT_Bitmap target; /* description of target bit/pixmap */
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FT_Outline outline;
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Long traceOfs; /* current offset in target bitmap */
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Long traceG; /* current offset in target pixmap */
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Long traceOfs; /* current offset in target bitmap */
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Long traceG; /* current offset in target pixmap */
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Short traceIncr; /* sweep's increment in target bitmap */
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Short traceIncr; /* sweep's increment in target bitmap */
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Short gray_min_x; /* current min x during gray rendering */
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Short gray_max_x; /* current max x during gray rendering */
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Short gray_min_x; /* current min x during gray rendering */
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Short gray_max_x; /* current max x during gray rendering */
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/* dispatch variables */
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@ -486,31 +489,31 @@
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Function_Sweep_Span* Proc_Sweep_Drop;
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Function_Sweep_Step* Proc_Sweep_Step;
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Byte dropOutControl; /* current drop_out control method */
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Byte dropOutControl; /* current drop_out control method */
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Bool second_pass; /* indicates whether a horizontal pass */
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Bool second_pass; /* indicates whether a horizontal pass */
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/* should be performed to control */
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/* drop-out accurately when calling */
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/* Render_Glyph. Note that there is */
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/* no horizontal pass during gray */
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/* rendering. */
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TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */
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TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */
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TBand band_stack[16]; /* band stack used for sub-banding */
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Int band_top; /* band stack top */
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TBand band_stack[16]; /* band stack used for sub-banding */
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Int band_top; /* band stack top */
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#ifdef FT_RASTER_OPTION_ANTI_ALIASING
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Byte* grays;
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Byte* grays;
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Byte gray_lines[RASTER_GRAY_LINES];
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Byte gray_lines[RASTER_GRAY_LINES];
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/* Intermediate table used to render the */
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/* graylevels pixmaps. */
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/* gray_lines is a buffer holding two */
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/* monochrome scanlines */
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Short gray_width; /* width in bytes of one monochrome */
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Short gray_width; /* width in bytes of one monochrome */
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/* intermediate scanline of gray_lines. */
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/* Each gray pixel takes 2 bits long there */
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@ -524,12 +527,12 @@
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typedef struct TRaster_
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{
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char* buffer;
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long buffer_size;
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void* memory;
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PWorker worker;
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Byte grays[5];
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Short gray_width;
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char* buffer;
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long buffer_size;
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void* memory;
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PWorker worker;
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Byte grays[5];
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Short gray_width;
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} TRaster, *PRaster;
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@ -538,11 +541,11 @@
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static TWorker cur_ras;
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#define ras cur_ras
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#else
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#else /* !FT_STATIC_RASTER */
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#define ras (*worker)
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#endif /* FT_STATIC_RASTER */
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#endif /* !FT_STATIC_RASTER */
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#ifdef FT_RASTER_OPTION_ANTI_ALIASING
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