forked from minhngoc25a/freetype2
"ftrast.c" now works for monochrome bitmaps, and doesn't
produce the artefacts of the current "ftraster.c".. I'll change it soon to handle optimised 5-levels anti-aliasing (backwards compatibility) in order to completely replace "ftraster.c"
This commit is contained in:
David Turner
parent
d186a361a1
commit
112be4c609
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@ -133,8 +133,8 @@
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typedef enum TFlow_
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{
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Flow_None = 0,
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Flow_Up,
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Flow_Down
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Flow_Up = 1,
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Flow_Down = -1
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} TFlow;
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@ -196,24 +196,6 @@
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static const Byte RMask[8] =
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{ 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE, 0xFF };
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/* We provide two different builds of the scan-line converter */
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/* The static build uses global variables and isn't */
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/* re-entrant. */
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/* The indirect build is re-entrant but accesses all variables */
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/* indirectly. */
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/* */
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/* As a consequence, the indirect build is about 10% slower */
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/* than the static one on a _Pentium_ (this could get worse */
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/* on older processors), but the code size is reduced by */
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/* more than 30% ! */
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/* */
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/* The indirect build is now the default, defined in */
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/* ttconfig.h. Be careful if you experiment with this. */
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/* Note also that, though its code can be re-entrant, the */
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/* component is always used in thread-safe mode. This is */
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/* simply due to the fact that we want to use a single */
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/* render pool (of 64 Kb), and not to waste memory. */
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#ifdef TT_STATIC_RASTER
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@ -398,7 +380,7 @@
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/* */
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/************************************************************************/
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static void Set_High_Precision( RAS_ARGS Bool High )
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static void Set_High_Precision( RAS_ARGS Int High )
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{
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if ( High )
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{
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@ -1120,10 +1102,10 @@
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/* Description: Injects a new conic arc and adjusts the profile list. */
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/* */
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static Bool Conic_To( RAS_ARGS Long x,
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Long y,
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Long cx,
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Long cy )
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static Bool Conic_To( RAS_ARGS Long cx,
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Long cy,
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Long x,
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Long y )
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{
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Long y1, y2, y3, x3, ymin, ymax;
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TStates state_bez;
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@ -1211,12 +1193,12 @@
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/* Description: Injects a new cubic arc and adjusts the profile list. */
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/* */
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static Bool Cubic_To( RAS_ARGS Long x,
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Long y,
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Long cx1,
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static Bool Cubic_To( RAS_ARGS Long cx1,
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Long cy1,
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Long cx2,
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Long cy2 )
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Long cy2,
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Long x,
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Long y )
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{
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Long y1, y2, y3, y4, x4, ymin1, ymax1, ymin2, ymax2;
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TStates state_bez;
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@ -1333,7 +1315,7 @@
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static Bool Decompose_Curve( RAS_ARGS UShort first,
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UShort last,
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Bool flipped )
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int flipped )
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{
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FT_Vector v_last;
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FT_Vector v_control;
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@ -1393,6 +1375,9 @@
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tags--;
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}
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ras.lastX = v_start.x;
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ras.lastY = v_start.y;
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while (point < limit)
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{
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point++;
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@ -1763,9 +1748,9 @@
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(void)max;
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ras.traceIncr = - pitch;
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ras.traceIncr = (Short)- pitch;
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ras.traceOfs = - *min * pitch;
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if (ras.traceIncr > 0)
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if (pitch > 0)
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ras.traceOfs += (ras.target.rows-1)*pitch;
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ras.gray_min_x = 0;
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@ -2152,7 +2137,7 @@
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ras.traceOfs = 0;
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pitch = ras.target.pitch;
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byte_len = -pitch;
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ras.traceIncr = byte_len;
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ras.traceIncr = (Short)byte_len;
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ras.traceG = (*min/2)*byte_len;
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if (pitch > 0)
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{
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@ -2160,8 +2145,8 @@
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byte_len = -byte_len;
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}
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ras.gray_min_x = byte_len;
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ras.gray_max_x = -byte_len;
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ras.gray_min_x = (Short)byte_len;
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ras.gray_max_x = -(Short)byte_len;
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}
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@ -2359,8 +2344,8 @@
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{
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Q = P->link;
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bottom = P->start;
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top = P->start + P->height-1;
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bottom = (Short)P->start;
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top = (Short)P->start + P->height-1;
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if ( min_Y > bottom ) min_Y = bottom;
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if ( max_Y < top ) max_Y = top;
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@ -2959,8 +2944,8 @@ Scan_DropOuts :
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ras.target = *target_map;
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return ( params->flags & ft_raster_flag_aa
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? Render_Glyph( raster )
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: Render_Gray_Glyph( raster ) );
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? Render_Gray_Glyph( raster )
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: Render_Glyph( raster ) );
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#if 0
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/* Note that we always use drop-out mode 2, because it seems that */
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@ -0,0 +1,8 @@
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#ifndef FTRASTER_H
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#define FTRASTER_H
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#include <ftimage.h>
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extern FT_Raster_Funcs ft_black_raster;
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#endif
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@ -28,6 +28,7 @@
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#include "grfont.h"
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#include "ftgrays.h"
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#include "ftrast.h"
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#define DIM_X 500
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#define DIM_Y 400
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@ -423,7 +424,10 @@ $\243^\250*\265\371%!\247:/;.,?<>";
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FT_Error error;
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error = 1;
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if ( use_grays && antialias )
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if ( !antialias)
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error = FT_Set_Raster( library, &ft_black_raster );
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else if ( use_grays && antialias )
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error = FT_Set_Raster( library, &ft_grays_raster );
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if (error)
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