X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pico%2Fdraw.c;h=5094e5cda9c9c5fd756f8f4694d77879971d3a4f;hb=a2b8c5a54568093b247ced39f0754cbb30324830;hp=168a6ea98a2c440a25b52e2e760d642eae3c65a0;hpb=5a68108691ed5685682ce133aa0bcf6015c0afd8;p=picodrive.git

diff --git a/pico/draw.c b/pico/draw.c
index 168a6ea..5094e5c 100644
--- a/pico/draw.c
+++ b/pico/draw.c
@@ -1421,7 +1421,7 @@ PICO_INTERNAL void PicoFrameStart(void)
     lines = 240;
   }
 
-  HighCol = HighColBase;
+  HighCol = HighColBase + offs * HighColIncrement;
   DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
   DrawScanline = 0;
   skip_next_line = 0;
@@ -1566,10 +1566,12 @@ void PicoDrawSetOutFormat(pdso_t which, int allow_32x)
   rendstatus_old = -1;
 }
 
+// note: may be called on the middle of frame
 void PicoDrawSetOutBuf(void *dest, int increment)
 {
   DrawLineDestBase = dest;
   DrawLineDestIncrement = increment;
+  DrawLineDest = DrawLineDestBase + DrawScanline * increment;
 }
 
 void PicoDrawSetInternalBuf(void *dest, int increment)
@@ -1577,6 +1579,7 @@ void PicoDrawSetInternalBuf(void *dest, int increment)
   if (dest != NULL) {
     HighColBase = dest;
     HighColIncrement = increment;
+    HighCol = HighColBase + DrawScanline * increment;
   }
   else {
     HighColBase = DefHighCol;