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Document some single-remaining symbols

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This commit is contained in:
GriffinR
2021-09-24 14:30:15 -04:00
parent 09fd4fc4c5
commit a66d7e1b43
35 changed files with 329 additions and 286 deletions
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gflib/bg.c
+27 -26
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@@ -42,10 +42,12 @@ static struct BgControl sGpuBgConfigs;
static struct BgConfig2 sGpuBgConfigs2[NUM_BACKGROUNDS];
static u32 sDmaBusyBitfield[NUM_BACKGROUNDS];
u32 gUnneededFireRedVariable;
u32 gWindowTileAutoAllocEnabled;
static const struct BgConfig sZeroedBgControlStruct = { 0 };
static u32 GetBgType(u8 bg);
void ResetBgs(void)
{
ResetBgControlStructs();
@@ -288,7 +290,8 @@ bool8 IsInvalidBg(u8 bg)
return FALSE;
}
int DummiedOutFireRedLeafGreenTileAllocFunc(int a1, int a2, int a3, int a4)
// From FRLG. Dummied out.
int BgTileAllocOp(int bg, int offset, int count, int mode)
{
return 0;
}
@@ -303,7 +306,7 @@ void ResetBgsAndClearDma3BusyFlags(u32 leftoverFireRedLeafGreenVariable)
sDmaBusyBitfield[i] = 0;
}
gUnneededFireRedVariable = leftoverFireRedLeafGreenVariable;
gWindowTileAutoAllocEnabled = leftoverFireRedLeafGreenVariable;
}
void InitBgsFromTemplates(u8 bgMode, const struct BgTemplate *templates, u8 numTemplates)
@@ -392,10 +395,8 @@ u16 LoadBgTiles(u8 bg, const void* src, u16 size, u16 destOffset)
sDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20));
if (gUnneededFireRedVariable == 1)
{
DummiedOutFireRedLeafGreenTileAllocFunc(bg, tileOffset / 0x20, size / 0x20, 1);
}
if (gWindowTileAutoAllocEnabled == TRUE)
BgTileAllocOp(bg, tileOffset / 0x20, size / 0x20, 1);
return cursor;
}
@@ -523,9 +524,9 @@ u16 GetBgAttribute(u8 bg, u8 attributeId)
case BG_ATTR_METRIC:
switch (GetBgType(bg))
{
case 0:
case BG_TYPE_NORMAL:
return GetBgMetricTextMode(bg, 0) * 0x800;
case 1:
case BG_TYPE_AFFINE:
return GetBgMetricAffineMode(bg, 0) * 0x100;
default:
return 0;
@@ -891,10 +892,10 @@ void CopyBgTilemapBufferToVram(u8 bg)
{
switch (GetBgType(bg))
{
case 0:
case BG_TYPE_NORMAL:
sizeToLoad = GetBgMetricTextMode(bg, 0) * 0x800;
break;
case 1:
case BG_TYPE_AFFINE:
sizeToLoad = GetBgMetricAffineMode(bg, 0) * 0x100;
break;
default:
@@ -915,7 +916,7 @@ void CopyToBgTilemapBufferRect(u8 bg, const void* src, u8 destX, u8 destY, u8 wi
{
switch (GetBgType(bg))
{
case 0:
case BG_TYPE_NORMAL:
{
const u16 * srcCopy = src;
for (destY16 = destY; destY16 < (destY + height); destY16++)
@@ -927,7 +928,7 @@ void CopyToBgTilemapBufferRect(u8 bg, const void* src, u8 destX, u8 destY, u8 wi
}
break;
}
case 1:
case BG_TYPE_AFFINE:
{
const u8 * srcCopy = src;
mode = GetBgMetricAffineMode(bg, 0x1);
@@ -963,7 +964,7 @@ void CopyRectToBgTilemapBufferRect(u8 bg, const void *src, u8 srcX, u8 srcY, u8
screenHeight = GetBgMetricTextMode(bg, 0x2) * 0x20;
switch (GetBgType(bg))
{
case 0:
case BG_TYPE_NORMAL:
srcPtr = src + ((srcY * srcWidth) + srcX) * 2;
for (i = destX; i < (destX + rectWidth); i++)
{
@@ -976,7 +977,7 @@ void CopyRectToBgTilemapBufferRect(u8 bg, const void *src, u8 srcX, u8 srcY, u8
srcPtr += (srcWidth - destY) * 2;
}
break;
case 1:
case BG_TYPE_AFFINE:
srcPtr = src + ((srcY * srcWidth) + srcX);
var = GetBgMetricAffineMode(bg, 0x1);
for (i = destX; i < (destX + rectWidth); i++)
@@ -1003,7 +1004,7 @@ void FillBgTilemapBufferRect_Palette0(u8 bg, u16 tileNum, u8 x, u8 y, u8 width,
{
switch (GetBgType(bg))
{
case 0:
case BG_TYPE_NORMAL:
for (y16 = y; y16 < (y + height); y16++)
{
for (x16 = x; x16 < (x + width); x16++)
@@ -1012,7 +1013,7 @@ void FillBgTilemapBufferRect_Palette0(u8 bg, u16 tileNum, u8 x, u8 y, u8 width,
}
}
break;
case 1:
case BG_TYPE_AFFINE:
mode = GetBgMetricAffineMode(bg, 0x1);
for (y16 = y; y16 < (y + height); y16++)
{
@@ -1046,7 +1047,7 @@ void WriteSequenceToBgTilemapBuffer(u8 bg, u16 firstTileNum, u8 x, u8 y, u8 widt
mode2 = GetBgMetricTextMode(bg, 0x2) * 0x20;
switch (GetBgType(bg))
{
case 0:
case BG_TYPE_NORMAL:
for (y16 = y; y16 < (y + height); y16++)
{
for (x16 = x; x16 < (x + width); x16++)
@@ -1056,7 +1057,7 @@ void WriteSequenceToBgTilemapBuffer(u8 bg, u16 firstTileNum, u8 x, u8 y, u8 widt
}
}
break;
case 1:
case BG_TYPE_AFFINE:
mode3 = GetBgMetricAffineMode(bg, 0x1);
for (y16 = y; y16 < (y + height); y16++)
{
@@ -1190,7 +1191,7 @@ void CopyTileMapEntry(const u16 *src, u16 *dest, s32 palette1, s32 tileOffset, s
*dest = var;
}
u32 GetBgType(u8 bg)
static u32 GetBgType(u8 bg)
{
u8 mode = GetBgMode();
@@ -1202,31 +1203,31 @@ u32 GetBgType(u8 bg)
{
case 0:
case 1:
return 0;
return BG_TYPE_NORMAL;
}
break;
case 2:
switch (mode)
{
case 0:
return 0;
return BG_TYPE_NORMAL;
case 1:
case 2:
return 1;
return BG_TYPE_AFFINE;
}
break;
case 3:
switch (mode)
{
case 0:
return 0;
return BG_TYPE_NORMAL;
case 2:
return 1;
return BG_TYPE_AFFINE;
}
break;
}
return 0xFFFF;
return BG_TYPE_NONE;
}
bool32 IsInvalidBg32(u8 bg)