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fixed blitting bug

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This commit is contained in:
HW
2011-12-08 00:42:02 +01:00
parent 11b568f19e
commit a466be9834
1 changed files with 4 additions and 3 deletions
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7
pdf.c
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@@ -237,6 +237,7 @@ static int closePage(lua_State *L) {
pdf_age_store(page->doc->xref->store, 2);
page->page = NULL;
}
return 0;
}
static int drawPage(lua_State *L) {
@@ -291,11 +292,11 @@ static int drawPage(lua_State *L) {
int x, y;
for(y = 0; y < bb->h; y++) {
for(x = 0; x < bb->w; x+=2) {
bbptr[x / 2] = (((pmptr[x+1] & 0xF0) >> 4) | (pmptr[x] & 0xF0)) ^ 0xFF;
for(x = 0; x < (bb->w / 2); x++) {
bbptr[x] = (((pmptr[x*2 + 1] & 0xF0) >> 4) | (pmptr[x*2] & 0xF0)) ^ 0xFF;
}
if(bb->w & 1) {
bbptr[x / 2] = pmptr[x-1] & 0xF0;
bbptr[x] = pmptr[x*2] & 0xF0;
}
bbptr += bb->pitch;
pmptr += bb->w;