sacrificed 18 bytes for world peace

This commit is contained in:
Christian Kroll 2012-08-24 01:43:49 +00:00
parent df83dbb8ac
commit ca61149aa2
1 changed files with 2 additions and 1 deletions

View File

@ -340,13 +340,13 @@ static void fixDrawPattern(fixp_t const t_start,
fpmath_pattern_func_t fpPattern,
void *r)
{
unsigned char pOffScreen[NUMPLANE + 1][NUM_ROWS][LINEBYTES];
for (fixp_t t = t_start; t < t_stop; t += t_delta)
{
// For performance reasons we draw the pattern to an off-screen buffer
// without distributing bits of higher planes down to lower ones. This
// is done afterwards when the off-screen contents are copied to the
// actual frame buffer.
unsigned char pOffScreen[NUMPLANE + 1][NUM_ROWS][LINEBYTES] = {{{0}}};
for (unsigned char y = 0; y < NUM_ROWS; ++y)
{
for (unsigned char x = 0; x < (LINEBYTES * 8u); ++x)
@ -374,6 +374,7 @@ static void fixDrawPattern(fixp_t const t_start,
(&pOffScreen[p + 1][0][0])[nOffset];
(&pOffScreen[p][0][0])[nOffset] |=
(&pOffScreen[p + 1][0][0])[nOffset];
(&pOffScreen[p + 1][0][0])[nOffset] = 0;
}
}