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Merge pull request #169 from gm-matthew/texture

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First 4MB of VROM maps to polygon RAM
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dukeeeey 2024-07-28 16:39:18 +01:00 committed by GitHub
parent 32414ee1fd aeaa602093
commit 27a2336528
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GPG key ID: B5690EEEBB952194
1 changed files with 7 additions and 1 deletions
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8
Src/Model3/Real3D.cpp
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@ -715,7 +715,13 @@ void CReal3D::WriteTexturePort(unsigned reg, uint32_t data)
{
uint32_t addr = m_vromTextureFIFO[0];
uint32_t header = m_vromTextureFIFO[1];
UploadTexture(header, (const uint16_t *) &vrom[addr & 0xFFFFFF]);
// first 4 MB maps to polygon RAM rather than VROM
// Daytona 2 PE uses zeroed data to replace unused Dreamcast logo textures
if (addr < 0x100000)
UploadTexture(header, (const uint16_t*)&polyRAM[addr & 0xFFFFFF]);
else
UploadTexture(header, (const uint16_t*)&vrom[addr & 0xFFFFFF]);
m_vromTextureFIFOIdx = 0;
}
else