shithub: cstory

Download patch

ref: 24bcbb8dfd67a659ffee790de7282db70b277a36
parent: a177f44b8884810adc58ce5d83617ef421fb49aa
author: Clownacy <Clownacy@users.noreply.github.com>
date: Fri Apr 17 10:15:59 EDT 2020 

Upscale 320x240 to 640x480 on the Wii U

For performance reasons, I'm going to switch to 320x240 for Wii U
builds.


--- a/src/Backends/WiiU/Window-Software.cpp
+++ b/src/Backends/WiiU/Window-Software.cpp
@@ -1,6 +1,7 @@
 #include "../Window-Software.h"
 
 #include <stdlib.h>
+#include <string.h>
 
 //#include <coreinit/cache.h>
 #include <coreinit/screen.h>
@@ -66,22 +67,55 @@
 
 	const unsigned char *in_pointer = fake_framebuffer;
 
-	for (size_t y = 0; y < framebuffer_height; ++y)
+	if (framebuffer_width == 320 && framebuffer_height == 240)
 	{
-		unsigned char *out_pointer = &drc_framebuffer[line_size * y];
+		for (size_t y = 0; y < framebuffer_height; ++y)
+		{
+			unsigned char *out_line = &drc_framebuffer[line_size * 2 * y];
 
-		if (!flipflop)
-			out_pointer += drc_buffer_size / 2;
+			if (!flipflop)
+				out_line += drc_buffer_size / 2;
 
-		out_pointer += ((854 - framebuffer_width) * 4) / 2;
-		out_pointer += ((480 - framebuffer_height) * line_size) / 2;
+			out_line += ((854 - (framebuffer_width * 2)) * 4) / 2;
 
-		for (size_t x = 0; x < framebuffer_width; ++x)
+			unsigned char *out_pointer = out_line;
+
+			for (size_t x = 0; x < framebuffer_width; ++x)
+			{
+				*out_pointer++ = in_pointer[0];
+				*out_pointer++ = in_pointer[1];
+				*out_pointer++ = in_pointer[2];
+				*out_pointer++ = 0;
+				*out_pointer++ = in_pointer[0];
+				*out_pointer++ = in_pointer[1];
+				*out_pointer++ = in_pointer[2];
+				*out_pointer++ = 0;
+
+				in_pointer += 3;
+			}
+
+			memcpy(out_line + line_size, out_line, framebuffer_width * 4 * 2);
+		}
+	}
+	else
+	{
+		for (size_t y = 0; y < framebuffer_height; ++y)
 		{
-			*out_pointer++ = *in_pointer++;
-			*out_pointer++ = *in_pointer++;
-			*out_pointer++ = *in_pointer++;
-			*out_pointer++ = 0;
+			unsigned char *out_pointer = &drc_framebuffer[line_size * y];
+
+			if (!flipflop)
+				out_pointer += drc_buffer_size / 2;
+
+			out_pointer += ((854 - framebuffer_width) * 4) / 2;
+			out_pointer += ((480 - framebuffer_height) * line_size) / 2;
+
+			for (size_t x = 0; x < framebuffer_width; ++x)
+			{
+				*out_pointer++ = *in_pointer++;
+				*out_pointer++ = *in_pointer++;
+				*out_pointer++ = *in_pointer++;
+				*out_pointer++ = 0;
+			}
 		}
 	}