initial commit

oscar64/autotest/tileexpand.cpp

@@ -0,0 +1,83 @@
+#include <stdlib.h>
+#include <assert.h>
+#include <stdio.h>
+
+#define MAP_WIDTH 10
+#define MAP_HEIGHT 2
+
+#define TITLE_TILE_WIDTH            4
+#define TITLE_TILE_HEIGHT           4
+
+#define PTR_SCREEN              ((char *)0xc000)
+#define PTR_BUFFER              ((char *)0xc400)
+#define PTR_COLOR               ((char *)0xd800)
+#define PTR_FONTCHARSET         ((char *)0xd800)
+
+const char TitleMap[1024] = {
+#for(i, 1024) i * 17,
+};
+
+const char TitleTiles[4096] = {
+#for(i, 4096) i * 31,
+};
+
+// Custom screen address
+extern char* const Screen = PTR_SCREEN;
+
+// Color mem address
+extern char* const Color = PTR_COLOR;
+
+void RenderLogo(char screenY)
+{    
+	char * sp = Screen;
+	char * cp = Color;
+	const char * mp = TitleMap;
+
+	for(char ty=0; ty < MAP_HEIGHT; ty++)
+    {
+        for(char tx=0; tx< MAP_WIDTH; tx++)
+        {
+            char ti = mp[tx];
+            const char* tp = TitleTiles + (TITLE_TILE_WIDTH * TITLE_TILE_HEIGHT) * ti;
+
+            for(char y=0; y<TITLE_TILE_HEIGHT; y++)
+            {
+                for(char x=0; x<TITLE_TILE_WIDTH; x++)
+                {	
+                    char c = tp[TITLE_TILE_WIDTH * y + x];
+                    sp[40 * (y + screenY) + x] = c;
+                    cp[40 * (y + screenY) + x] = 1;
+                }    
+            }
+            sp += TITLE_TILE_WIDTH;
+            cp += TITLE_TILE_WIDTH;
+        }
+        sp += 120;
+        cp += 120;
+	    mp += MAP_WIDTH;
+    }
+}
+
+void VerifyLogo(char screenY)
+{
+	for(char dy=0; dy<MAP_HEIGHT * TITLE_TILE_HEIGHT; dy++)
+	{
+		for(char dx=0; dx<MAP_WIDTH * TITLE_TILE_WIDTH; dx++)
+		{
+			char ty = dy / TITLE_TILE_HEIGHT, iy = dy % TITLE_TILE_HEIGHT;
+			char tx = dx / TITLE_TILE_WIDTH, ix = dx % TITLE_TILE_WIDTH;
+
+			int si = TitleMap[MAP_WIDTH * ty + tx] * TITLE_TILE_WIDTH * TITLE_TILE_HEIGHT + TITLE_TILE_WIDTH * iy + ix;
+			int di = 40 * (dy + screenY) + dx;
+
+			assert(Screen[di] == TitleTiles[si]);
+		}
+	}
+}
+
+int main(void)
+{
+    RenderLogo(1);
+    VerifyLogo(1);
+    return 0;
+}