diff --git a/core/libs/prx/libSceAgcDriver/Graphics/src/GuestTextureResource.cpp b/core/libs/prx/libSceAgcDriver/Graphics/src/GuestTextureResource.cpp index 3c81c9c97eb8..7c1ea7aeea58 100644 --- a/core/libs/prx/libSceAgcDriver/Graphics/src/GuestTextureResource.cpp +++ b/core/libs/prx/libSceAgcDriver/Graphics/src/GuestTextureResource.cpp @@ -5,6 +5,8 @@ #include "prx/libSceAgcDriver/Graphics/include/TextureFormat.hpp" #include "RdnaDecoder/RdnaDescriptorFormat.hpp" #include +#include +#include #include #include @@ -50,6 +52,45 @@ TextureDimension resolveDimension(std::uint32_t raw) { } } +bool ZeroTail(std::span words) { + return words[4] == 0u && words[5] == 0u && words[6] == 0u && words[7] == 0u; +} + +bool SameLevels(const TileMipLayout& a, const TileMipLayout& b) { + return a.tiledOffset == b.tiledOffset && a.tiledSize == b.tiledSize && a.width == b.width && a.height == b.height && a.blocksPerRow == b.blocksPerRow && a.pitchBytes == b.pitchBytes && a.tail == b.tail && a.tailX == b.tailX && a.tailY == b.tailY; +} + +std::optional> R128ResidentLevelWords(std::span words) { + const auto baseLevel = (words[3] >> 12u) & 0xfu; + const auto lastLevel = (words[3] >> 16u) & 0xfu; + const auto typeRaw = (words[3] >> 28u) & 0xfu; + if (baseLevel == 0u || baseLevel > lastLevel || (typeRaw != 8u && typeRaw != 9u)) return std::nullopt; + const std::array chainWords{words[0], words[1], words[2], words[3], 0u, lastLevel << 4u, 0u, 0u}; + const auto width = (((words[1] >> 30u) & 0x3u) | ((words[2] & 0xfffu) << 2u)) + 1u; + const auto height = ((words[2] >> 14u) & 0x3fffu) + 1u; + const auto minLod = (words[1] >> 8u) & 0xfffu; + const auto widthMinus1 = std::max(width >> baseLevel, 1u) - 1u; + const auto heightMinus1 = std::max(height >> baseLevel, 1u) - 1u; + const auto rebasedMinLod = minLod > baseLevel * 256u ? minLod - baseLevel * 256u : 0u; + const auto levels = lastLevel - baseLevel; + auto rebased = chainWords; + rebased[1] = (words[1] & ~((0xfffu << 8u) | (0x3u << 30u))) | (rebasedMinLod << 8u) | ((widthMinus1 & 0x3u) << 30u); + rebased[2] = (words[2] & ~(0xfffu | (0x3fffu << 14u))) | ((widthMinus1 >> 2u) & 0xfffu) | ((heightMinus1 & 0x3fffu) << 14u); + rebased[3] = (words[3] & ~(0xffu << 12u)) | (levels << 16u); + rebased[5] = levels << 4u; + try { + const auto chain = DescribeSurface(DecodeTextureResource(chainWords)); + const auto view = DescribeSurface(DecodeTextureResource(rebased)); + if (chain.mips.size() != lastLevel + 1u || view.mips.size() != levels + 1u || chain.layers != view.layers) return std::nullopt; + for (std::uint32_t level = baseLevel; level <= lastLevel; ++level) { + if (!SameLevels(chain.mips[level], view.mips[level - baseLevel])) return std::nullopt; + } + } catch (const std::exception&) { + return std::nullopt; + } + return rebased; +} + } bool IsNullTextureResource(std::span words) { @@ -236,7 +277,11 @@ GuestTextureResource DecodeTextureResource(std::span words) result.minLod = minLod; result.samples = samples; if (baseLevel > maxMip) { - Require(LevelsFitAllocation(result, lastLevel + 1u), "guest texture descriptor starts past the surface's last mip level at levels that would move the surface's own" + describe()); + const bool fits = LevelsFitAllocation(result, lastLevel + 1u); + if (!fits && ZeroTail(words)) { + if (const auto resident = R128ResidentLevelWords(words)) return DecodeTextureResource(*resident); + } + Require(fits, "guest texture descriptor starts past the surface's last mip level at levels that would move the surface's own" + describe()); result.mipCount = lastLevel + 1u; } return result; diff --git a/core/libs/prx/libSceAgcDriver/tests/GuestTextureResource.cpp b/core/libs/prx/libSceAgcDriver/tests/GuestTextureResource.cpp index db38d183f58e..13983a2d4db1 100644 --- a/core/libs/prx/libSceAgcDriver/tests/GuestTextureResource.cpp +++ b/core/libs/prx/libSceAgcDriver/tests/GuestTextureResource.cpp @@ -95,6 +95,52 @@ void rejectFields(const Fields& f, std::string_view reason) { } +static void RunR128TextureTests() { + constexpr std::array streamed{0xa0c18800u, 0xcad00000u, 0x01ffc1ffu, 0x905b2facu, 0u, 0u, 0u, 0u}; + const auto view = DecodeTextureResource(streamed); + Require(view.baseAddress == 0xa0c1880000ull && view.format == 173u && view.tileMode == TextureTileMode::kStandard4KB && view.width == 512u && view.height == 512u && view.baseLevel == 0u && view.lastLevel == 9u && view.mipCount == 10u && view.allocatedMipCount == 10u && view.minLod == 0u, + "a 128-bit BC3 T# (2048x2048, levels 2..11, words 4-7 zero) must read as the 512x512 chain of its 10 resident levels, got " + std::to_string(view.width) + "x" + std::to_string(view.height) + " levels " + std::to_string(view.baseLevel) + ".." + std::to_string(view.lastLevel) + " of " + std::to_string(view.mipCount)); + auto chainWords = streamed; + chainWords[3] &= ~(0xfu << 12u); + chainWords[5] = 11u << 4u; + const auto full = DecodeTextureResource(chainWords); + Require(full.width == 2048u && full.mipCount == 12u, "the same surface with MAX_MIP 11 must be the 12-level 2048x2048 chain"); + const auto chain = DescribeSurface(full); + const auto resident = DescribeSurface(view); + Require(chain.mips.size() == 12u && resident.mips.size() == 10u, "the chain and the resident levels must have 12 and 10 levels"); + for (std::uint32_t level = 0; level < 10u; ++level) { + const auto& a = chain.mips[level + 2u]; + const auto& b = resident.mips[level]; + Require(a.tiledOffset == b.tiledOffset && a.tiledSize == b.tiledSize && a.width == b.width && a.height == b.height && a.blocksPerRow == b.blocksPerRow && a.tail == b.tail && a.tailX == b.tailX && a.tailY == b.tailY, "resident level " + std::to_string(level) + " must be level " + std::to_string(level + 2u) + " of the 12-level chain"); + } + Require(resident.guestBytes <= chain.mips[1].tiledOffset && chain.mips[0].tiledOffset > chain.mips[1].tiledOffset, "the resident levels must end before the chain's levels 1 and 0, which come last in a GFX10 swizzled chain"); + auto levelZero = streamed; + levelZero[3] &= ~(0xfu << 12u); + const auto single = DecodeTextureResource(levelZero); + Require(single.mipCount == 1u && single.lastLevel == 0u, "a T# with words 4-7 zero that starts at level 0 must stay one level"); + auto tailed = streamed; + tailed[5] = 4u << 20u; + reject([&] { DecodeTextureResource(tailed); }, "would move the surface's own"); + + constexpr std::array tall{0xa0c1de00u, 0xcad00000u, 0x01ffc0ffu, 0x905b4facu, 0u, 0u, 0u, 0u}; + const auto tallView = DecodeTextureResource(tall); + Require(tallView.width == 64u && tallView.height == 128u && tallView.lastLevel == 7u && tallView.mipCount == 8u, "a 128-bit 1024x2048 T# of levels 4..11 must read as its 64x128 chain of 8 levels"); + + Fields clamped; + clamped.base40 = 0x55ea000ull; + clamped.format = 20; + clamped.width = 1024; + clamped.height = 1024; + clamped.tileModeRaw = 0x1b; + clamped.baseLevel = 2; + clamped.lastLevel = 10; + clamped.minLod = 2u * 256u + 64u; + const auto clampedView = DecodeTextureResource(pack(clamped)); + Require(clampedView.width == 256u && clampedView.mipCount == 9u && clampedView.minLod == 64u, "reading a 128-bit T# from its resident levels must move its MIN_LOD clamp with the base level"); + clamped.minLod = 256u; + Require(DecodeTextureResource(pack(clamped)).minLod == 0u, "a MIN_LOD clamp below the base level must vanish when read from the resident levels"); +} + void RunGuestTextureResourceTests() { Fields base; const auto baseWords = pack(base); @@ -620,6 +666,7 @@ void RunGuestTextureResourceTests() { pastUntailed.maxMip = 0; pastUntailed.baseLevel = 1; pastUntailed.lastLevel = 1; + pastUntailed.perfMod = 4; rejectFields(pastUntailed, "would move the surface's own"); auto untailedChain = tailView; untailedChain.mipCount = 1; @@ -627,6 +674,8 @@ void RunGuestTextureResourceTests() { untailedChain.mipCount = 2; Require(untailedAllocated == 0xff0000u && DescribeSurface(untailedChain).guestBytes == 0x1470000u, "a second level must grow a 1920x1080 64 bpp SW_64KB_R_X surface from addrlib's 0xff0000 to 0x1470000 bytes"); + RunR128TextureTests(); + std::array shortWords{}; reject([&] { DecodeTextureResource(shortWords); }, "8 dwords");