Document some text-related things

6 files changed, 145 insertions, 147 deletions

diff --git a/common_syms/text.txt b/common_syms/text.txt
index 4406c8bf9..cd8886e5b 100644
--- a/common_syms/text.txt
+++ b/common_syms/text.txt
@@ -1,4 +1,4 @@
 gFonts
-gUnknown_03002F84
-gUnknown_03002F90
+gDisableTextPrinters
+gCurGlyph
 gTextFlags
diff --git a/gflib/text.c b/gflib/text.c
index ffce2cb56..d75be2fbf 100644
--- a/gflib/text.c
+++ b/gflib/text.c
@@ -21,8 +21,8 @@ static u16 gLastTextFgColor;
 static u16 gLastTextShadowColor;
 
 const struct FontInfo *gFonts;
-u8 gUnknown_03002F84;
-struct Struct_03002F90 gUnknown_03002F90;
+u8 gDisableTextPrinters;
+struct TextGlyph gCurGlyph;
 TextFlags gTextFlags;
 
 const u8 gFontHalfRowOffsets[] =
@@ -204,7 +204,7 @@ bool16 AddTextPrinter(struct TextPrinterTemplate *printerTemplate, u8 speed, voi
             CopyWindowToVram(gTempTextPrinter.printerTemplate.windowId, 2);
         gTextPrinters[printerTemplate->windowId].active = 0;
     }
-    gUnknown_03002F84 = 0;
+    gDisableTextPrinters = 0;
     return TRUE;
 }
 
@@ -212,7 +212,7 @@ void RunTextPrinters(void)
 {
     int i;
 
-    if (gUnknown_03002F84 == 0)
+    if (gDisableTextPrinters == 0)
     {
         for (i = 0; i < NUM_TEXT_PRINTERS; ++i)
         {
@@ -461,9 +461,9 @@ u8 GetLastTextColor(u8 colorType)
     }
 }
 
-inline static void GLYPH_COPY(u8 *windowTiles, u32 widthOffset, u32 j, u32 i, u32 *ptr, s32 width, s32 height)
+inline static void GLYPH_COPY(u8 *windowTiles, u32 widthOffset, u32 j, u32 i, u32 *glyphPixels, s32 width, s32 height)
 {
-    u32 xAdd, yAdd, r5, bits, toOrr, dummyX;
+    u32 xAdd, yAdd, pixelData, bits, toOrr, dummyX;
     u8 *dst;
 
     xAdd = j + width;
@@ -471,69 +471,69 @@ inline static void GLYPH_COPY(u8 *windowTiles, u32 widthOffset, u32 j, u32 i, u3
     dummyX = j;
     for (; i < yAdd; i++)
     {
-        r5 = *ptr++;
+        pixelData = *glyphPixels++;
         for (j = dummyX; j < xAdd; j++)
         {
-            if ((toOrr = r5 & 0xF))
+            if ((toOrr = pixelData & 0xF))
             {
                 dst = windowTiles + ((j / 8) * 32) + ((j % 8) / 2) + ((i / 8) * widthOffset) + ((i % 8) * 4);
                 bits = ((j & 1) * 4);
                 *dst = (toOrr << bits) | (*dst & (0xF0 >> bits));
             }
-            r5 >>= 4;
+            pixelData >>= 4;
         }
     }
 }
 
 void CopyGlyphToWindow(struct TextPrinter *textPrinter)
 {
-    struct Window *win;
-    struct WindowTemplate *winTempl;
-    u32 *unkStruct;
+    struct Window *window;
+    struct WindowTemplate *template;
+    u32 *glyphPixels;
     u32 currX, currY, widthOffset;
-    s32 r4, r0;
+    s32 glyphWidth, glyphHeight;
     u8 *windowTiles;
 
-    win = &gWindows[textPrinter->printerTemplate.windowId];
-    winTempl = &win->window;
+    window = &gWindows[textPrinter->printerTemplate.windowId];
+    template = &window->window;
 
-    if ((r4 = (winTempl->width * 8) - textPrinter->printerTemplate.currentX) > gUnknown_03002F90.width)
-        r4 = gUnknown_03002F90.width;
+    if ((glyphWidth = (template->width * 8) - textPrinter->printerTemplate.currentX) > gCurGlyph.width)
+        glyphWidth = gCurGlyph.width;
 
-    if ((r0 = (winTempl->height * 8) - textPrinter->printerTemplate.currentY) > gUnknown_03002F90.height)
-        r0 = gUnknown_03002F90.height;
+    if ((glyphHeight = (template->height * 8) - textPrinter->printerTemplate.currentY) > gCurGlyph.height)
+        glyphHeight = gCurGlyph.height;
 
     currX = textPrinter->printerTemplate.currentX;
     currY = textPrinter->printerTemplate.currentY;
-    unkStruct = (u32 *)&gUnknown_03002F90.unk0;
-    windowTiles = win->tileData;
-    widthOffset = winTempl->width * 32;
+    glyphPixels = gCurGlyph.gfxBufferTop;
+    windowTiles = window->tileData;
+    widthOffset = template->width * 32;
 
-    if (r4 < 9)
+    if (glyphWidth < 9)
     {
-        if (r0 < 9)
+        if (glyphHeight < 9)
         {
-            GLYPH_COPY(windowTiles, widthOffset, currX, currY, unkStruct, r4, r0);
+            GLYPH_COPY(windowTiles, widthOffset, currX, currY, glyphPixels, glyphWidth, glyphHeight);
         }
         else
         {
-            GLYPH_COPY(windowTiles, widthOffset, currX, currY, unkStruct, r4, 8);
-            GLYPH_COPY(windowTiles, widthOffset, currX, currY + 8, unkStruct + 16, r4, r0 - 8);
+            GLYPH_COPY(windowTiles, widthOffset, currX, currY, glyphPixels, glyphWidth, 8);
+            GLYPH_COPY(windowTiles, widthOffset, currX, currY + 8, glyphPixels + 16, glyphWidth, glyphHeight - 8);
         }
     }
     else
     {
-        if (r0 < 9)
+        if (glyphHeight < 9)
         {
-            GLYPH_COPY(windowTiles, widthOffset, currX, currY, unkStruct, 8, r0);
-            GLYPH_COPY(windowTiles, widthOffset, currX + 8, currY, unkStruct + 8, r4 - 8, r0);
+            GLYPH_COPY(windowTiles, widthOffset, currX, currY, glyphPixels, 8, glyphHeight);
+            GLYPH_COPY(windowTiles, widthOffset, currX + 8, currY, glyphPixels + 8, glyphWidth - 8, glyphHeight);
         }
         else
         {
-            GLYPH_COPY(windowTiles, widthOffset, currX, currY, unkStruct, 8, 8);
-            GLYPH_COPY(windowTiles, widthOffset, currX + 8, currY, unkStruct + 8, r4 - 8, 8);
-            GLYPH_COPY(windowTiles, widthOffset, currX, currY + 8, unkStruct + 16, 8, r0 - 8);
-            GLYPH_COPY(windowTiles, widthOffset, currX + 8, currY + 8, unkStruct + 24, r4 - 8, r0 - 8);
+            GLYPH_COPY(windowTiles, widthOffset, currX, currY, glyphPixels, 8, 8);
+            GLYPH_COPY(windowTiles, widthOffset, currX + 8, currY, glyphPixels + 8, glyphWidth - 8, 8);
+            GLYPH_COPY(windowTiles, widthOffset, currX, currY + 8, glyphPixels + 16, 8, glyphHeight - 8);
+            GLYPH_COPY(windowTiles, widthOffset, currX + 8, currY + 8, glyphPixels + 24, glyphWidth - 8, glyphHeight - 8);
         }
     }
 }
@@ -542,7 +542,7 @@ void ClearTextSpan(struct TextPrinter *textPrinter, u32 width)
 {
     struct Window *window;
     struct Bitmap pixels_data;
-    struct Struct_03002F90 *gUnk;
+    struct TextGlyph *glyph;
     u8* glyphHeight;
 
     if (gLastTextBgColor != 0)
@@ -552,8 +552,8 @@ void ClearTextSpan(struct TextPrinter *textPrinter, u32 width)
         pixels_data.width = window->window.width << 3;
         pixels_data.height = window->window.height << 3;
 
-        gUnk = &gUnknown_03002F90;
-        glyphHeight = &gUnk->height;
+        glyph = &gCurGlyph;
+        glyphHeight = &glyph->height;
 
         FillBitmapRect4Bit(
             &pixels_data,
@@ -1015,8 +1015,8 @@ u16 RenderText(struct TextPrinter *textPrinter)
             break;
         case CHAR_KEYPAD_ICON:
             currChar = *textPrinter->printerTemplate.currentChar++;
-            gUnknown_03002F90.width = DrawKeypadIcon(textPrinter->printerTemplate.windowId, currChar, textPrinter->printerTemplate.currentX, textPrinter->printerTemplate.currentY);
-            textPrinter->printerTemplate.currentX += gUnknown_03002F90.width + textPrinter->printerTemplate.letterSpacing;
+            gCurGlyph.width = DrawKeypadIcon(textPrinter->printerTemplate.windowId, currChar, textPrinter->printerTemplate.currentX, textPrinter->printerTemplate.currentY);
+            textPrinter->printerTemplate.currentX += gCurGlyph.width + textPrinter->printerTemplate.letterSpacing;
             return 0;
         case EOS:
             return 1;
@@ -1050,8 +1050,8 @@ u16 RenderText(struct TextPrinter *textPrinter)
 
         if (textPrinter->minLetterSpacing)
         {
-            textPrinter->printerTemplate.currentX += gUnknown_03002F90.width;
-            width = textPrinter->minLetterSpacing - gUnknown_03002F90.width;
+            textPrinter->printerTemplate.currentX += gCurGlyph.width;
+            width = textPrinter->minLetterSpacing - gCurGlyph.width;
             if (width > 0)
             {
                 ClearTextSpan(textPrinter, width);
@@ -1061,9 +1061,9 @@ u16 RenderText(struct TextPrinter *textPrinter)
         else
         {
             if (textPrinter->japanese)
-                textPrinter->printerTemplate.currentX += (gUnknown_03002F90.width + textPrinter->printerTemplate.letterSpacing);
+                textPrinter->printerTemplate.currentX += (gCurGlyph.width + textPrinter->printerTemplate.letterSpacing);
             else
-                textPrinter->printerTemplate.currentX += gUnknown_03002F90.width;
+                textPrinter->printerTemplate.currentX += gCurGlyph.width;
         }
         return 0;
     case 1:
@@ -1499,8 +1499,8 @@ u8 RenderTextFont9(u8 *pixels, u8 fontId, u8 *str)
                 DecompressGlyphFont1(temp, 1);
                 break;
             }
-            CpuCopy32(gUnknown_03002F90.unk0, pixels, 0x20);
-            CpuCopy32(gUnknown_03002F90.unk40, pixels + 0x20, 0x20);
+            CpuCopy32(gCurGlyph.gfxBufferTop, pixels, 0x20);
+            CpuCopy32(gCurGlyph.gfxBufferBottom, pixels + 0x20, 0x20);
             pixels += 0x40;
             break;
         }
@@ -1592,30 +1592,30 @@ void DecompressGlyphFont0(u16 glyphId, bool32 isJapanese)
     if (isJapanese == 1)
     {
         glyphs = gFont0JapaneseGlyphs + (0x100 * (glyphId >> 0x4)) + (0x8 * (glyphId & 0xF));
-        DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-        DecompressGlyphTile(glyphs + 0x80, gUnknown_03002F90.unk40);    // gUnknown_03002F90 + 0x40
-        gUnknown_03002F90.width = 8;     // gGlyphWidth
-        gUnknown_03002F90.height = 12;    // gGlyphHeight
+        DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+        DecompressGlyphTile(glyphs + 0x80, gCurGlyph.gfxBufferBottom);
+        gCurGlyph.width = 8;
+        gCurGlyph.height = 12;
     }
     else
     {
         glyphs = gFont0LatinGlyphs + (0x20 * glyphId);
-        gUnknown_03002F90.width = gFont0LatinGlyphWidths[glyphId];
+        gCurGlyph.width = gFont0LatinGlyphWidths[glyphId];
 
-        if (gUnknown_03002F90.width <= 8)
+        if (gCurGlyph.width <= 8)
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
         }
         else
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x8, gUnknown_03002F90.unk20);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
-            DecompressGlyphTile(glyphs + 0x18, gUnknown_03002F90.unk60);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x8, gCurGlyph.gfxBufferTop + 8);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
+            DecompressGlyphTile(glyphs + 0x18, gCurGlyph.gfxBufferBottom + 8);
         }
 
-        gUnknown_03002F90.height = 13;
+        gCurGlyph.height = 13;
     }
 }
 
@@ -1635,30 +1635,30 @@ void DecompressGlyphFont7(u16 glyphId, bool32 isJapanese)
     {
         int eff;
         glyphs = gFont1JapaneseGlyphs + (0x100 * (glyphId >> 0x4)) + (0x8 * (glyphId & (eff = 0xF)));  // shh, no questions, only matching now
-        DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-        DecompressGlyphTile(glyphs + 0x80, gUnknown_03002F90.unk40);    // gUnknown_03002F90 + 0x40
-        gUnknown_03002F90.width = 8;     // gGlyphWidth
-        gUnknown_03002F90.height = 15;    // gGlyphHeight
+        DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+        DecompressGlyphTile(glyphs + 0x80, gCurGlyph.gfxBufferBottom);
+        gCurGlyph.width = 8;
+        gCurGlyph.height = 15;
     }
     else
     {
         glyphs = gFont7LatinGlyphs + (0x20 * glyphId);
-        gUnknown_03002F90.width = gFont7LatinGlyphWidths[glyphId];
+        gCurGlyph.width = gFont7LatinGlyphWidths[glyphId];
 
-        if (gUnknown_03002F90.width <= 8)
+        if (gCurGlyph.width <= 8)
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
         }
         else
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x8, gUnknown_03002F90.unk20);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
-            DecompressGlyphTile(glyphs + 0x18, gUnknown_03002F90.unk60);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x8, gCurGlyph.gfxBufferTop + 8);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
+            DecompressGlyphTile(glyphs + 0x18, gCurGlyph.gfxBufferBottom + 8);
         }
 
-        gUnknown_03002F90.height = 15;
+        gCurGlyph.height = 15;
     }
 }
 
@@ -1677,30 +1677,30 @@ void DecompressGlyphFont8(u16 glyphId, bool32 isJapanese)
     if (isJapanese == TRUE)
     {
         glyphs = gFont0JapaneseGlyphs + (0x100 * (glyphId >> 0x4)) + (0x8 * (glyphId & 0xF));
-        DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-        DecompressGlyphTile(glyphs + 0x80, gUnknown_03002F90.unk40);    // gUnknown_03002F90 + 0x40
-        gUnknown_03002F90.width = 8;     // gGlyphWidth
-        gUnknown_03002F90.height = 12;    // gGlyphHeight
+        DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+        DecompressGlyphTile(glyphs + 0x80, gCurGlyph.gfxBufferBottom);
+        gCurGlyph.width = 8;
+        gCurGlyph.height = 12;
     }
     else
     {
         glyphs = gFont8LatinGlyphs + (0x20 * glyphId);
-        gUnknown_03002F90.width = gFont8LatinGlyphWidths[glyphId];
+        gCurGlyph.width = gFont8LatinGlyphWidths[glyphId];
 
-        if (gUnknown_03002F90.width <= 8)
+        if (gCurGlyph.width <= 8)
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
         }
         else
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x8, gUnknown_03002F90.unk20);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
-            DecompressGlyphTile(glyphs + 0x18, gUnknown_03002F90.unk60);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x8, gCurGlyph.gfxBufferTop + 8);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
+            DecompressGlyphTile(glyphs + 0x18, gCurGlyph.gfxBufferBottom + 8);
         }
 
-        gUnknown_03002F90.height = 12;
+        gCurGlyph.height = 12;
     }
 }
 
@@ -1719,32 +1719,32 @@ void DecompressGlyphFont2(u16 glyphId, bool32 isJapanese)
     if (isJapanese == TRUE)
     {
         glyphs = gFont2JapaneseGlyphs + (0x100 * (glyphId >> 0x3)) + (0x10 * (glyphId & 0x7));
-        DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-        DecompressGlyphTile(glyphs + 0x8, gUnknown_03002F90.unk20);    // gUnknown_03002F90 + 0x40
-        DecompressGlyphTile(glyphs + 0x80, gUnknown_03002F90.unk40);    // gUnknown_03002F90 + 0x20
-        DecompressGlyphTile(glyphs + 0x88, gUnknown_03002F90.unk60);    // gUnknown_03002F90 + 0x60
-        gUnknown_03002F90.width = gFont2JapaneseGlyphWidths[glyphId];     // gGlyphWidth
-        gUnknown_03002F90.height = 14;    // gGlyphHeight
+        DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+        DecompressGlyphTile(glyphs + 0x8, gCurGlyph.gfxBufferTop + 8);
+        DecompressGlyphTile(glyphs + 0x80, gCurGlyph.gfxBufferBottom);    // gCurGlyph + 0x20
+        DecompressGlyphTile(glyphs + 0x88, gCurGlyph.gfxBufferBottom + 8);    // gCurGlyph + 0x60
+        gCurGlyph.width = gFont2JapaneseGlyphWidths[glyphId];
+        gCurGlyph.height = 14;
     }
     else
     {
         glyphs = gFont2LatinGlyphs + (0x20 * glyphId);
-        gUnknown_03002F90.width = gFont2LatinGlyphWidths[glyphId];
+        gCurGlyph.width = gFont2LatinGlyphWidths[glyphId];
 
-        if (gUnknown_03002F90.width <= 8)
+        if (gCurGlyph.width <= 8)
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
         }
         else
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x8, gUnknown_03002F90.unk20);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
-            DecompressGlyphTile(glyphs + 0x18, gUnknown_03002F90.unk60);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x8, gCurGlyph.gfxBufferTop + 8);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
+            DecompressGlyphTile(glyphs + 0x18, gCurGlyph.gfxBufferBottom + 8);
         }
 
-        gUnknown_03002F90.height = 14;
+        gCurGlyph.height = 14;
     }
 }
 
@@ -1764,30 +1764,30 @@ void DecompressGlyphFont1(u16 glyphId, bool32 isJapanese)
     {
         int eff;
         glyphs = gFont1JapaneseGlyphs + (0x100 * (glyphId >> 0x4)) + (0x8 * (glyphId & (eff = 0xF)));  // shh, no questions, only matching now
-        DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-        DecompressGlyphTile(glyphs + 0x80, gUnknown_03002F90.unk40);    // gUnknown_03002F90 + 0x40
-        gUnknown_03002F90.width = 8;     // gGlyphWidth
-        gUnknown_03002F90.height = 15;    // gGlyphHeight
+        DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+        DecompressGlyphTile(glyphs + 0x80, gCurGlyph.gfxBufferBottom);
+        gCurGlyph.width = 8;
+        gCurGlyph.height = 15;
     }
     else
     {
         glyphs = gFont1LatinGlyphs + (0x20 * glyphId);
-        gUnknown_03002F90.width = gFont1LatinGlyphWidths[glyphId];
+        gCurGlyph.width = gFont1LatinGlyphWidths[glyphId];
 
-        if (gUnknown_03002F90.width <= 8)
+        if (gCurGlyph.width <= 8)
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
         }
         else
         {
-            DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-            DecompressGlyphTile(glyphs + 0x8, gUnknown_03002F90.unk20);
-            DecompressGlyphTile(glyphs + 0x10, gUnknown_03002F90.unk40);
-            DecompressGlyphTile(glyphs + 0x18, gUnknown_03002F90.unk60);
+            DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+            DecompressGlyphTile(glyphs + 0x8, gCurGlyph.gfxBufferTop + 8);
+            DecompressGlyphTile(glyphs + 0x10, gCurGlyph.gfxBufferBottom);
+            DecompressGlyphTile(glyphs + 0x18, gCurGlyph.gfxBufferBottom + 8);
         }
 
-        gUnknown_03002F90.height = 15;
+        gCurGlyph.height = 15;
     }
 }
 
@@ -1804,8 +1804,8 @@ void DecompressGlyphFont9(u16 glyphId)
     const u16* glyphs;
 
     glyphs = gFont9JapaneseGlyphs + (0x100 * (glyphId >> 4)) + (0x8 * (glyphId & 0xF));
-    DecompressGlyphTile(glyphs, gUnknown_03002F90.unk0);
-    DecompressGlyphTile(glyphs + 0x80, gUnknown_03002F90.unk40);
-    gUnknown_03002F90.width = 8;
-    gUnknown_03002F90.height = 12;
+    DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+    DecompressGlyphTile(glyphs + 0x80, gCurGlyph.gfxBufferBottom);
+    gCurGlyph.width = 8;
+    gCurGlyph.height = 12;
 }
diff --git a/gflib/text.h b/gflib/text.h
index 723a2fc0e..3e9b4f2ae 100644
--- a/gflib/text.h
+++ b/gflib/text.h
@@ -360,20 +360,18 @@ typedef struct {
     bool8 forceMidTextSpeed:1;
 } TextFlags;
 
-struct Struct_03002F90
+struct TextGlyph
 {
-    u32 unk0[8];
-    u32 unk20[8];
-    u32 unk40[8];
-    u32 unk60[8];
+    u32 gfxBufferTop[16];
+    u32 gfxBufferBottom[16];
     u8 width;
     u8 height;
 };
 
 extern TextFlags gTextFlags;
 
-extern u8 gUnknown_03002F84;
-extern struct Struct_03002F90 gUnknown_03002F90;
+extern u8 gDisableTextPrinters;
+extern struct TextGlyph gCurGlyph;
 
 void SetFontsPointer(const struct FontInfo *fonts);
 void DeactivateAllTextPrinters(void);
diff --git a/src/mauville_old_man.c b/src/mauville_old_man.c
index cdcde9b06..228415628 100644
--- a/src/mauville_old_man.c
+++ b/src/mauville_old_man.c
@@ -425,21 +425,21 @@ static void StartBardSong(bool8 useTemporaryLyrics)
     gTasks[taskId].tUseTemporaryLyrics = useTemporaryLyrics;
 }
 
-static void sub_81206F0(void)
+static void EnableTextPrinters(void)
 {
-    gUnknown_03002F84 = FALSE;
+    gDisableTextPrinters = FALSE;
 }
 
-static void BardSong_TextSubPrinter(struct TextPrinterTemplate * printer, u16 a1)
+static void BardSong_DisableTextPrinters(struct TextPrinterTemplate * printer, u16 a1)
 {
-    gUnknown_03002F84 = TRUE;
+    gDisableTextPrinters = TRUE;
 }
 
 static void sub_8120708(const u8 * src)
 {
     DrawDialogueFrame(0, 0);
-    AddTextPrinterParameterized(0, 1, src, 0, 1, 1, BardSong_TextSubPrinter);
-    gUnknown_03002F84 = TRUE;
+    AddTextPrinterParameterized(0, 1, src, 0, 1, 1, BardSong_DisableTextPrinters);
+    gDisableTextPrinters = TRUE;
     CopyWindowToVram(0, 3);
 }
 
@@ -620,7 +620,7 @@ static void Task_BardSong(u8 taskId)
             else if (gStringVar4[task->tCharIndex] == CHAR_SPACE)
             {
 
-                sub_81206F0();
+                EnableTextPrinters();
                 task->tCharIndex++;
                 task->tState = 2;
                 task->data[2] = 0;
@@ -640,7 +640,7 @@ static void Task_BardSong(u8 taskId)
             else if (gStringVar4[task->tCharIndex] == CHAR_SONG_WORD_SEPARATOR)
             {
                 gStringVar4[task->tCharIndex] = CHAR_SPACE;  // restore it back to a space
-                sub_81206F0();
+                EnableTextPrinters();
                 task->tCharIndex++;
                 task->data[2] = 0;
             }
@@ -649,7 +649,7 @@ static void Task_BardSong(u8 taskId)
                 switch (task->data[1])
                 {
                     case 0:
-                        sub_81206F0();
+                        EnableTextPrinters();
                         task->data[1]++;
                         break;
                     case 1:
diff --git a/src/unk_text_util_2.c b/src/unk_text_util_2.c
index b92b34fbd..3459dde85 100644
--- a/src/unk_text_util_2.c
+++ b/src/unk_text_util_2.c
@@ -5,7 +5,7 @@
 #include "sound.h"
 
 ALIGNED(4)
-static const u8 sUnknown_08616124[] = {1, 2, 4};
+static const u8 sScrollDistances[] = {1, 2, 4};
 static const u16 sFont6BrailleGlyphs[] = INCBIN_U16("graphics/fonts/font6.fwjpnfont");
 
 static void DecompressGlyphFont6(u16);
@@ -135,7 +135,7 @@ u16 Font6Func(struct TextPrinter *textPrinter)
             }
             DecompressGlyphFont6(char_);
             CopyGlyphToWindow(textPrinter);
-            textPrinter->printerTemplate.currentX += gUnknown_03002F90.width + textPrinter->printerTemplate.letterSpacing;
+            textPrinter->printerTemplate.currentX += gCurGlyph.width + textPrinter->printerTemplate.letterSpacing;
             return 0;
         case 1:
             if (TextPrinterWait(textPrinter))
@@ -164,15 +164,15 @@ u16 Font6Func(struct TextPrinter *textPrinter)
         case 4:
             if (textPrinter->scrollDistance)
             {
-                if (textPrinter->scrollDistance < sUnknown_08616124[gSaveBlock2Ptr->optionsTextSpeed])
+                if (textPrinter->scrollDistance < sScrollDistances[gSaveBlock2Ptr->optionsTextSpeed])
                 {
                     ScrollWindow(textPrinter->printerTemplate.windowId, 0, textPrinter->scrollDistance, PIXEL_FILL(textPrinter->printerTemplate.bgColor));
                     textPrinter->scrollDistance = 0;
                 }
                 else
                 {
-                    ScrollWindow(textPrinter->printerTemplate.windowId, 0, sUnknown_08616124[gSaveBlock2Ptr->optionsTextSpeed], PIXEL_FILL(textPrinter->printerTemplate.bgColor));
-                    textPrinter->scrollDistance -= sUnknown_08616124[gSaveBlock2Ptr->optionsTextSpeed];
+                    ScrollWindow(textPrinter->printerTemplate.windowId, 0, sScrollDistances[gSaveBlock2Ptr->optionsTextSpeed], PIXEL_FILL(textPrinter->printerTemplate.bgColor));
+                    textPrinter->scrollDistance -= sScrollDistances[gSaveBlock2Ptr->optionsTextSpeed];
                 }
                 CopyWindowToVram(textPrinter->printerTemplate.windowId, 2);
             }
@@ -206,12 +206,12 @@ static void DecompressGlyphFont6(u16 glyph)
     const u16 *glyphs;
 
     glyphs = sFont6BrailleGlyphs + 0x100 * (glyph / 8) + 0x10 * (glyph % 8);
-    DecompressGlyphTile(glyphs, (u16 *)gUnknown_03002F90.unk0);
-    DecompressGlyphTile(glyphs + 0x8, (u16 *)(gUnknown_03002F90.unk20));
-    DecompressGlyphTile(glyphs + 0x80, (u16 *)(gUnknown_03002F90.unk40));
-    DecompressGlyphTile(glyphs + 0x88, (u16 *)(gUnknown_03002F90.unk60));
-    gUnknown_03002F90.width = 0x10;
-    gUnknown_03002F90.height = 0x10;
+    DecompressGlyphTile(glyphs, gCurGlyph.gfxBufferTop);
+    DecompressGlyphTile(glyphs + 0x8, gCurGlyph.gfxBufferTop + 8);
+    DecompressGlyphTile(glyphs + 0x80, gCurGlyph.gfxBufferBottom);
+    DecompressGlyphTile(glyphs + 0x88, gCurGlyph.gfxBufferBottom + 8);
+    gCurGlyph.width = 0x10;
+    gCurGlyph.height = 0x10;
 }
 
 u32 GetGlyphWidthFont6(u16 glyphId, bool32 isJapanese)
diff --git a/sym_common.txt b/sym_common.txt
index 22d70d706..1525d8aec 100644
--- a/sym_common.txt
+++ b/sym_common.txt
@@ -16,10 +16,10 @@ gWindowBgTilemapBuffers:
 gFonts:
     .space 4
     .align 2
-gUnknown_03002F84:
+gDisableTextPrinters:
     .space 1
     .align 4
-gUnknown_03002F90:
+gCurGlyph:
     .space 132
     .align 2
 gTextFlags: