# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1566266782 25200
# Node ID 3457d338ae2512b1bff45e420662914b391e669b
# Parent  cae2b55d683ffc00ae8968c099092e4b4f758f4f
Small optimization to render_map in VDP code

diff -r cae2b55d683f -r 3457d338ae25 vdp.c
--- a/vdp.c	Sat Aug 17 18:44:15 2019 -0700
+++ b/vdp.c	Mon Aug 19 19:06:22 2019 -0700
@@ -1197,28 +1197,25 @@
 	}
 	uint8_t pal_priority = (col >> 9) & 0x70;
 	uint32_t bits = *((uint32_t *)(&context->vdpmem[address]));
+	tmp_buf += offset;
 	if (col & MAP_BIT_H_FLIP) {
 		uint32_t shift = 28;
 		for (int i = 0; i < 4; i++)
 		{
 			uint8_t right = pal_priority | ((bits >> shift) & 0xF);
 			shift -= 4;
-			tmp_buf[offset++] = pal_priority | ((bits >> shift) & 0xF);
+			*(tmp_buf++) = pal_priority | ((bits >> shift) & 0xF);
 			shift -= 4;
-			offset &= SCROLL_BUFFER_MASK;
-			tmp_buf[offset++] = right;
-			offset &= SCROLL_BUFFER_MASK;
+			*(tmp_buf++) = right;
 		}
 	} else {
 		for (int i = 0; i < 4; i++)
 		{
 			uint8_t right = pal_priority | (bits & 0xF);
 			bits >>= 4;
-			tmp_buf[offset++] = pal_priority | (bits & 0xF);
-			offset &= SCROLL_BUFFER_MASK;
+			*(tmp_buf++) = pal_priority | (bits & 0xF);
 			bits >>= 4;
-			tmp_buf[offset++] = right;
-			offset &= SCROLL_BUFFER_MASK;
+			*(tmp_buf++) = right;
 		}
 	}
 }