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[smooth] Consolidate memory management. 

* src/smooth/ftgrays.c (gray_init_cells): Remove function.
(gray_TWorker): Remove fields that become local variables.
(gray_raster_render): Move rendering buffer declaration from here.
(gray_convert_glyph): ... to here and update accordingly.
This commit is contained in:
Alexei Podtelezhnikov 2016-06-23 23:17:39 -04:00
parent e22334812f
commit 25e82bc2b5
2 changed files with 15 additions and 37 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2016-06-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Consolidate memory management.
* src/smooth/ftgrays.c (gray_init_cells): Remove function.
(gray_TWorker): Remove fields that become local variables.
(gray_raster_render): Move rendering buffer declaration from here.
(gray_convert_glyph): ... to here and update accordingly.
2016-06-22 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Consolidate boundary checks.

43
src/smooth/ftgrays.c
View File

@ -452,11 +452,6 @@ typedef ptrdiff_t FT_PtrDist;
void* render_span_data;
int span_y;
int band_size;
void* buffer;
long buffer_size;
PCell* ycells;
TPos ycount;
@ -508,27 +503,6 @@ typedef ptrdiff_t FT_PtrDist;
#endif /* FT_DEBUG_LEVEL_TRACE */
/*************************************************************************/
/* */
/* Initialize the cells table. */
/* */
static void
gray_init_cells( RAS_ARG_ void* buffer,
long byte_size )
{
ras.buffer = buffer;
ras.buffer_size = byte_size;
ras.ycells = (PCell*) buffer;
ras.cells = NULL;
ras.max_cells = 0;
ras.num_cells = 0;
ras.area = 0;
ras.cover = 0;
ras.invalid = 1;
}
/*************************************************************************/
/* */
/* Record the current cell in the table. */
@ -1910,6 +1884,8 @@ typedef ptrdiff_t FT_PtrDist;
static int
gray_convert_glyph( RAS_ARG )
{
TCell buffer[FT_MAX_GRAY_POOL];
const int band_size = FT_MAX_GRAY_POOL / 8;
gray_TBand bands[40];
gray_TBand* volatile band;
int volatile n, num_bands;
@ -1917,7 +1893,7 @@ typedef ptrdiff_t FT_PtrDist;
/* set up vertical bands */
num_bands = (int)( ( ras.max_ey - ras.min_ey ) / ras.band_size );
num_bands = (int)( ( ras.max_ey - ras.min_ey ) / band_size );
if ( num_bands == 0 )
num_bands = 1;
if ( num_bands >= 39 )
@ -1928,7 +1904,7 @@ typedef ptrdiff_t FT_PtrDist;
for ( n = 0; n < num_bands; n++, min = max )
{
max = min + ras.band_size;
max = min + band_size;
if ( n == num_bands - 1 || max > max_y )
max = max_y;
@ -1954,10 +1930,10 @@ typedef ptrdiff_t FT_PtrDist;
if ( FT_MAX_GRAY_POOL - cell_start < 2 )
goto ReduceBands;
ras.cells = (PCell)ras.buffer + cell_start;
ras.cells = buffer + cell_start;
ras.max_cells = (FT_PtrDist)( FT_MAX_GRAY_POOL - cell_start );
ras.ycells = (PCell*)ras.buffer;
ras.ycells = (PCell*)buffer;
ras.ycount = (TPos)ycount;
while ( ycount )
ras.ycells[--ycount] = NULL;
@ -2018,8 +1994,6 @@ typedef ptrdiff_t FT_PtrDist;
gray_TWorker worker[1];
TCell buffer[FT_MAX_GRAY_POOL];
if ( !raster )
return FT_THROW( Invalid_Argument );
@ -2100,12 +2074,7 @@ typedef ptrdiff_t FT_PtrDist;
ras.count_ex = ras.max_ex - ras.min_ex;
ras.count_ey = ras.max_ey - ras.min_ey;
gray_init_cells( RAS_VAR_ buffer, sizeof ( buffer ) );
ras.outline = *outline;
ras.num_cells = 0;
ras.invalid = 1;
ras.band_size = FT_MAX_GRAY_POOL / 8;
ras.num_gray_spans = 0;
ras.span_y = 0;