fix bad loop increments in p2i() and p2f() (#3932)

hugovk · web-flow · commit eedac360dcd9 · 2019-07-01T22:18:19.000+03:00
fix bad loop increments in p2i() and p2f()
diff --git a/src/libImaging/Convert.c b/src/libImaging/Convert.c
@@ -1041,7 +1041,7 @@ static void
 p2i(UINT8* out_, const UINT8* in, int xsize, const UINT8* palette)
 {
     int x;
-    for (x = 0; x < xsize; x++, in += 2, out_ += 4) {
+    for (x = 0; x < xsize; x++, out_ += 4) {
         INT32 v = L(&palette[in[x]*4]) / 1000;
         memcpy(out_, &v, sizeof(v));
     }
@@ -1060,7 +1060,7 @@ static void
 p2f(UINT8* out_, const UINT8* in, int xsize, const UINT8* palette)
 {
     int x;
-    for (x = 0; x < xsize; x++, in += 2, out_ += 4) {
+    for (x = 0; x < xsize; x++, out_ += 4) {
         FLOAT32 v = L(&palette[in[x]*4]) / 1000.0F;
         memcpy(out_, &v, sizeof(v));
     }

Original file line number	Diff line number	Diff line change
`@@ -1041,7 +1041,7 @@ static void`
`1041`	`1041`	`p2i(UINT8* out_, const UINT8* in, int xsize, const UINT8* palette)`
`1042`	`1042`	`{`
`1043`	`1043`	`int x;`
`1044`		`- for (x = 0; x < xsize; x++, in += 2, out_ += 4) {`
	`1044`	`+ for (x = 0; x < xsize; x++, out_ += 4) {`
`1045`	`1045`	`INT32 v = L(&palette[in[x]*4]) / 1000;`
`1046`	`1046`	`memcpy(out_, &v, sizeof(v));`
`1047`	`1047`	`}`
`@@ -1060,7 +1060,7 @@ static void`
`1060`	`1060`	`p2f(UINT8* out_, const UINT8* in, int xsize, const UINT8* palette)`
`1061`	`1061`	`{`
`1062`	`1062`	`int x;`
`1063`		`- for (x = 0; x < xsize; x++, in += 2, out_ += 4) {`
	`1063`	`+ for (x = 0; x < xsize; x++, out_ += 4) {`
`1064`	`1064`	`FLOAT32 v = L(&palette[in[x]*4]) / 1000.0F;`
`1065`	`1065`	`memcpy(out_, &v, sizeof(v));`
`1066`	`1066`	`}`