From d82f8feef5bdadccb07f308b0382cd650250ba03 Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Thu, 18 Aug 2016 10:06:30 -0700
Subject: [PATCH] PSP2: Allow UTF-8 filenames

---
 CHANGES                      |  1 +
 src/platform/psp2/gui-font.c | 12 ++++--------
 src/util/string.c            |  6 +++---
 src/util/string.h            |  1 +
 4 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/CHANGES b/CHANGES
index 273e87dd0..aa574d0a3 100644
--- a/CHANGES
+++ b/CHANGES
@@ -60,6 +60,7 @@ Misc:
  - GBA Savedata: Add realistic timing for EEPROM
  - GBA Video: Optimize mode 0 rendering
  - Qt: Remove default autofire mappings
+ - PSP2: Allow UTF-8 filenames
 
 0.4.1: (2016-07-11)
 Bugfixes:
diff --git a/src/platform/psp2/gui-font.c b/src/platform/psp2/gui-font.c
index 73c6a0ac7..37c94be7b 100644
--- a/src/platform/psp2/gui-font.c
+++ b/src/platform/psp2/gui-font.c
@@ -41,10 +41,8 @@ unsigned GUIFontHeight(const struct GUIFont* font) {
 }
 
 unsigned GUIFontGlyphWidth(const struct GUIFont* font, uint32_t glyph) {
-	if (glyph > 0x7F) {
-		glyph = '?';
-	}
-	char base[5] = { glyph };
+	char base[5] = { 0 };
+	toUtf8(glyph, base);
 	return vita2d_pgf_text_width(font->pgf, FONT_SIZE, base);
 }
 
@@ -68,10 +66,8 @@ void GUIFontIconMetrics(const struct GUIFont* font, enum GUIIcon icon, unsigned*
 }
 
 void GUIFontDrawGlyph(const struct GUIFont* font, int x, int y, uint32_t color, uint32_t glyph) {
-	if (glyph > 0x7F) {
-		glyph = '?';
-	}
-	char base[5] = { glyph };
+	char base[5] = { 0 };
+	toUtf8(glyph, base);
 	vita2d_pgf_draw_text(font->pgf, x, y, color, FONT_SIZE, base);
 }
 
diff --git a/src/util/string.c b/src/util/string.c
index 0157d4403..438a1b683 100644
--- a/src/util/string.c
+++ b/src/util/string.c
@@ -80,7 +80,7 @@ uint32_t utf8Char(const char** unicode, size_t* length) {
 		return byte;
 	}
 	uint32_t unichar;
-	static int tops[4] = { 0xC0, 0xE0, 0xF0, 0xF8 };
+	static const int tops[4] = { 0xC0, 0xE0, 0xF0, 0xF8 };
 	size_t numBytes;
 	for (numBytes = 0; numBytes < 3; ++numBytes) {
 		if ((byte & tops[numBytes + 1]) == tops[numBytes]) {
@@ -110,7 +110,7 @@ uint32_t utf8Char(const char** unicode, size_t* length) {
 	return unichar;
 }
 
-static size_t _toUtf8(uint32_t unichar, char* buffer) {
+size_t toUtf8(uint32_t unichar, char* buffer) {
 	if (unichar > 0x10FFFF) {
 		unichar = 0xFFFD;
 	}
@@ -173,7 +173,7 @@ char* utf16to8(const uint16_t* utf16, size_t length) {
 			break;
 		}
 		uint32_t unichar = utf16Char(&utf16, &length);
-		size_t bytes = _toUtf8(unichar, buffer);
+		size_t bytes = toUtf8(unichar, buffer);
 		utf8Length += bytes;
 		if (utf8Length < utf8TotalBytes) {
 			memcpy(offset, buffer, bytes);
diff --git a/src/util/string.h b/src/util/string.h
index 9716cfbf6..44ee79a35 100644
--- a/src/util/string.h
+++ b/src/util/string.h
@@ -19,6 +19,7 @@ char* strdup(const char* str);
 
 char* strnrstr(const char* restrict s1, const char* restrict s2, size_t len);
 
+size_t toUtf8(uint32_t unichar, char* buffer);
 int utfcmp(const uint16_t* utf16, const char* utf8, size_t utf16Length, size_t utf8Length);
 char* utf16to8(const uint16_t* utf16, size_t length);
 uint32_t utf8Char(const char** unicode, size_t* length);