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Temp fix for upside-down bitmap

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This commit is contained in:
Anurag Thakur 2022-07-12 18:31:20 +05:30
parent 39bcb3a647
commit 8687c459c0
2 changed files with 19 additions and 1 deletions
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2
modules.cfg
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@ -97,7 +97,7 @@ RASTER_MODULES += dense
# Anti-aliasing rasterizer.
RASTER_MODULES += smooth
# RASTER_MODULES += dense
#RASTER_MODULES += dense
# Monochrome rasterizer.
RASTER_MODULES += raster

18
src/dense/ftdense.c
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@ -416,6 +416,12 @@ FT_DEFINE_OUTLINE_FUNCS( dense_decompose_funcs,
0 /* delta */
)
void swap(unsigned char *a, unsigned char *b){
unsigned char temp = *a;
*a = *b;
*b = temp;
}
/* @QUES: So, this calls FT_Outline_Decompose, that calls the move to,
line to, conic to, cubic to interface methods. The aRasterFP structure stores the
well, stuff in its m_a and finally renders it to the target->buffer*/
@ -476,6 +482,18 @@ dense_render_glyph( RasterFP* aRasterFP, const FT_Bitmap* target )
*dest = 0;
dest++;
}
for (int col = 0; col < aRasterFP->m_w; col++)
{
for (int row = 0; row < aRasterFP->m_h/2; row++)
{
//printf("Swapping position: %d, %d with %d, %d with rows = %d, cols = %d",row,col, aRasterFP->m_h-row, col, aRasterFP->m_h, aRasterFP->m_w);
swap(target->buffer + aRasterFP->m_w*row + col, target->buffer + (aRasterFP->m_h-row-1)*aRasterFP->m_w + col);
}
}
return error;
}