mirror of https://github.com/freetype/freetype
[raster] Make `band_top' local variable.
* src/raster/ftraster.c (black_TWorker): Move `band_top' from here... (Render_Single_Pass): ... to here, and refactor. (Render_Glyph): Updated.
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@ -1,3 +1,11 @@
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2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
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[raster] Make `band_top' local variable.
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* src/raster/ftraster.c (black_TWorker): Move `band_top' from here...
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(Render_Single_Pass): ... to here, and refactor.
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(Render_Glyph): Updated.
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2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
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[raster] Adjust sub-band bisecting limits.
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@ -529,7 +529,6 @@
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black_TBand band_stack[16]; /* band stack used for sub-banding */
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/* enough for signed short bands */
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Int band_top; /* band stack top */
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};
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@ -3034,12 +3033,13 @@
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Render_Single_Pass( RAS_ARGS Bool flipped )
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{
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Short i, j, k;
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Int band_top = 0;
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while ( ras.band_top >= 0 )
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do
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{
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ras.maxY = (Long)ras.band_stack[ras.band_top].y_max * ras.precision;
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ras.minY = (Long)ras.band_stack[ras.band_top].y_min * ras.precision;
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ras.maxY = (Long)ras.band_stack[band_top].y_max * ras.precision;
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ras.minY = (Long)ras.band_stack[band_top].y_min * ras.precision;
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ras.top = ras.buff;
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@ -3052,33 +3052,29 @@
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/* sub-banding */
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i = ras.band_stack[ras.band_top].y_min;
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j = ras.band_stack[ras.band_top].y_max;
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i = ras.band_stack[band_top].y_min;
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j = ras.band_stack[band_top].y_max;
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if ( i == j )
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{
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ras.band_top = 0;
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return ras.error; /* still Raster_Overflow */
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}
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k = (Short)( ( i + j ) / 2 );
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ras.band_stack[ras.band_top + 1].y_min = (Short)( k + 1 );
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ras.band_stack[ras.band_top + 1].y_max = j;
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ras.band_stack[band_top].y_max = k;
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ras.band_stack[ras.band_top].y_max = k;
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ras.band_stack[band_top + 1].y_min = (Short)( k + 1 );
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ras.band_stack[band_top + 1].y_max = j;
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ras.band_top++;
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band_top++;
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}
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else
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{
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if ( ras.fProfile )
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if ( Draw_Sweep( RAS_VAR ) )
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return ras.error;
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ras.band_top--;
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band_top--;
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}
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}
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} while ( band_top >= 0 );
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return Raster_Err_Ok;
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}
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@ -3128,7 +3124,6 @@
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ras.Proc_Sweep_Drop = Vertical_Sweep_Drop;
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ras.Proc_Sweep_Step = Vertical_Sweep_Step;
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ras.band_top = 0;
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ras.band_stack[0].y_min = 0;
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ras.band_stack[0].y_max = (Short)( ras.target.rows - 1 );
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@ -3151,7 +3146,6 @@
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ras.Proc_Sweep_Drop = Horizontal_Sweep_Drop;
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ras.Proc_Sweep_Step = Horizontal_Sweep_Step;
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ras.band_top = 0;
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ras.band_stack[0].y_min = 0;
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ras.band_stack[0].y_max = (Short)( ras.target.width - 1 );
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