Xargon/Supermodel
1
0
Fork 0
mirror of https://github.com/RetroDECK/Supermodel.git synced 2024-11-22 05:45:38 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix mipmaps

Browse source 
Real3d mipmaps only go down to 2x2 pixels. The 1x1 pixels generated previously were actually the last part of the 2x2 mipmaps.
This commit is contained in:
Ian Curtis 2024-07-29 00:19:26 +01:00
parent 27a2336528
commit 49ca8c1480
1 changed files with 18 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
Src/Model3/Real3D.cpp
View file

@ -326,18 +326,6 @@ static const unsigned decode8x2[16] =
15, 14
};
static const unsigned decode8x1[8] =
{
1,
3,
0,
2,
5,
7,
4,
6
};
void CReal3D::StoreTexture(unsigned level, unsigned xPos, unsigned yPos, unsigned width, unsigned height, const uint16_t *texData, bool sixteenBit, bool writeLSB, bool writeMSB, uint32_t &texDataOffset)
{
uint32_t tileX = (std::min)(8u, width);
@ -360,16 +348,17 @@ void CReal3D::StoreTexture(unsigned level, unsigned xPos, unsigned yPos, unsigne
{
if (m_gpuMultiThreaded)
MARK_DIRTY(textureRAMDirty, destOffset * 2);
if (tileX == 1) texData -= tileY;
if (tileY == 1) texData -= tileX;
if (tileX == 8)
if (tileX == 8) {
textureRAM[destOffset++] = texData[decode8x8[yy * tileX + xx]];
else if (tileX == 4)
}
else if (tileX == 4) {
textureRAM[destOffset++] = texData[decode8x4[yy * tileX + xx]];
else if (tileX == 2)
}
else if (tileX == 2) {
textureRAM[destOffset++] = texData[decode8x2[yy * tileX + xx]];
else if (tileX == 1)
textureRAM[destOffset++] = texData[decode8x1[yy * tileX + xx]];
}
texDataOffset++;
}
destOffset += 2048 - tileX; // next line
@ -409,16 +398,17 @@ void CReal3D::StoreTexture(unsigned level, unsigned xPos, unsigned yPos, unsigne
textureRAM[destOffset] &= byteMask[byteSelect];
const uint8_t shift = (8 * ((xx & 1) ^ 1));
const uint8_t index = (yy ^ 1) * tileX + (xx ^ 1) - (tileX & 1);
if (tileX == 1) texData -= tileY;
if (tileY == 1) texData -= tileX;
if (tileX == 8)
if (tileX == 8) {
tempData = (texData[decode8x8[index] / 2] >> shift) & 0xFF;
else if (tileX == 4)
}
else if (tileX == 4) {
tempData = (texData[decode8x4[index] / 2] >> shift) & 0xFF;
else if (tileX == 2)
}
else if (tileX == 2) {
tempData = (texData[decode8x2[index] / 2] >> shift) & 0xFF;
else if (tileX == 1)
tempData = (texData[decode8x1[index] / 2] >> shift) & 0xFF;
}
tempData |= tempData << 8;
tempData &= byteMask[byteSelect] ^ 0xFFFF;
textureRAM[destOffset] |= tempData;
@ -492,9 +482,10 @@ void CReal3D::UploadTexture(uint32_t header, const uint16_t *texData)
if (type == 0x01) {
break;
}
[[fallthrough]];
case 0x02: // mipmaps only
{
for (int i = 1; width > 0 && height > 0; i++) {
for (int i = 1; width >=4 && height >=4; i++) {
int xPos = mipXBase[i] + (x / mipDivisor[i]);
int yPos = mipYBase[i] + (y / mipDivisor[i]);