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libfreerdp-codec: get all steps of planar scanline delta encoding tested

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Marc-André Moreau 2013-11-26 16:30:43 -05:00
parent 52a1b328f2
commit c64e10444b
1 changed files with 67 additions and 0 deletions
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67
libfreerdp/codec/planar.c
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@ -150,6 +150,7 @@ int freerdp_bitmap_compress_planar_rle_plane_scanline(BYTE* plane, int size)
int freerdp_bitmap_planar_delta_encode_scanlines(BYTE* plane, int width, int height)
{
char s2c;
BYTE u2c;
int delta;
int i, j, k;
@ -232,6 +233,72 @@ int freerdp_bitmap_planar_delta_encode_scanlines(BYTE* plane, int width, int hei
printf("\n");
k = 0;
for (i = 0; i < height; i++)
{
printf("{ ");
for (j = 0; j < width; j++)
{
if (i < 1)
{
delta = plane[j];
s2c = (delta >= 0) ? (char) delta : (char) (~((BYTE) (delta * -1)) + 1);
}
else
{
delta = plane[(i * width) + j] - plane[((i - 1) * width) + j];
s2c = (delta >= 0) ? (char) delta : (char) (~((BYTE) (delta * -1)) + 1);
s2c = (s2c >= 0) ? (s2c << 1) : (char) (((~((BYTE) s2c) + 1) << 1) - 1);
}
printf("%4d%s", s2c,
(j + 1 == width) ? " }\n" : ", ");
k++;
}
}
printf("\n");
k = 0;
for (i = 0; i < height; i++)
{
printf("{ ");
for (j = 0; j < width; j++)
{
if (i < 1)
{
delta = plane[j];
s2c = (delta >= 0) ? (char) delta : (char) (~((BYTE) (delta * -1)) + 1);
}
else
{
delta = plane[(i * width) + j] - plane[((i - 1) * width) + j];
s2c = (delta >= 0) ? (char) delta : (char) (~((BYTE) (delta * -1)) + 1);
s2c = (s2c >= 0) ? (s2c << 1) : (char) (((~((BYTE) s2c) + 1) << 1) - 1);
}
u2c = (BYTE) s2c;
printf("0x%02X%s", u2c,
(j + 1 == width) ? " }\n" : ", ");
k++;
}
}
printf("\n");
return 0;
}