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https://github.com/dolphin-emu/dolphin.git
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a3951dc2d7
On all platforms, this would result in out of bounds accesses when getting the component sizes (which uses stuff from VertexLoader_Position.h/VertexLoader_TextCoord.h/VertexLoader_Normal.h). On platforms other than x64 and ARM64, this would also be out of bounds accesses when getting function pointers for the non-JIT vertex loader (in VertexLoader_Position.cpp etc.). Usually both of these would get data from other entries in the same multi-dimensional array, but the last few entries would be truly out of bounds. This does mean that an out of bounds function pointer can be called on platforms that don't have a JIT vertex loader, but it is limited to invalid component formats with values 5/6/7 due to the size of the bitfield the formats come from, so it seems unlikely that this could be exploited in practice. This issue affects a few games; Def Jam: Fight for New York (https://bugs.dolphin-emu.org/issues/12719) and Fifa Street are known to be affected. I have not done any hardware testing for this PR specifically, though I *think* I previously determined that at least a value of 5 behaves the same as float (4). That's what I implemented in any case. I did previously determine that both Def Jam: Fight for New York and Fifa Street use an invalid normal format, but don't actually have lighting enabled when that normal vector is used, so it doesn't change rendering in practice. The color component format also has two invalid values, but VertexLoader_Color.h/.cpp do check for those invalid ones and return a default value instead of doing an out of bounds access.
608 lines
22 KiB
C++
608 lines
22 KiB
C++
// Copyright 2015 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "VideoCommon/VertexLoaderX64.h"
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#include <array>
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#include <cstring>
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#include <string>
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#include "Common/BitSet.h"
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#include "Common/CPUDetect.h"
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#include "Common/Common.h"
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#include "Common/CommonTypes.h"
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#include "Common/Intrinsics.h"
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#include "Common/JitRegister.h"
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#include "Common/x64ABI.h"
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#include "Common/x64Emitter.h"
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#include "VideoCommon/CPMemory.h"
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#include "VideoCommon/VertexLoaderManager.h"
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using namespace Gen;
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static const X64Reg src_reg = ABI_PARAM1;
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static const X64Reg dst_reg = ABI_PARAM2;
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static const X64Reg scratch1 = RAX;
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static const X64Reg scratch2 = ABI_PARAM3;
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static const X64Reg scratch3 = ABI_PARAM4;
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// The remaining number of vertices to be processed. Starts at count - 1, and the final loop has it
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// at 0.
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static const X64Reg remaining_reg = R10;
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static const X64Reg skipped_reg = R11;
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static const X64Reg base_reg = RBX;
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static const u8* memory_base_ptr = (u8*)&g_main_cp_state.array_strides;
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static OpArg MPIC(const void* ptr, X64Reg scale_reg, int scale = SCALE_1)
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{
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return MComplex(base_reg, scale_reg, scale, PtrOffset(ptr, memory_base_ptr));
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}
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static OpArg MPIC(const void* ptr)
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{
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return MDisp(base_reg, PtrOffset(ptr, memory_base_ptr));
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}
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VertexLoaderX64::VertexLoaderX64(const TVtxDesc& vtx_desc, const VAT& vtx_att)
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: VertexLoaderBase(vtx_desc, vtx_att)
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{
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AllocCodeSpace(4096);
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ClearCodeSpace();
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GenerateVertexLoader();
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WriteProtect(true);
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Common::JitRegister::Register(region, GetCodePtr(), "VertexLoaderX64\nVtx desc: \n{}\nVAT:\n{}",
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vtx_desc, vtx_att);
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}
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OpArg VertexLoaderX64::GetVertexAddr(CPArray array, VertexComponentFormat attribute)
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{
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OpArg data = MDisp(src_reg, m_src_ofs);
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if (IsIndexed(attribute))
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{
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int bits = attribute == VertexComponentFormat::Index8 ? 8 : 16;
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LoadAndSwap(bits, scratch1, data);
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m_src_ofs += bits / 8;
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if (array == CPArray::Position)
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{
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CMP(bits, R(scratch1), Imm8(-1));
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m_skip_vertex = J_CC(CC_E, Jump::Near);
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}
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IMUL(32, scratch1, MPIC(&g_main_cp_state.array_strides[array]));
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MOV(64, R(scratch2), MPIC(&VertexLoaderManager::cached_arraybases[array]));
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return MRegSum(scratch1, scratch2);
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}
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else
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{
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return data;
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}
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}
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void VertexLoaderX64::ReadVertex(OpArg data, VertexComponentFormat attribute,
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ComponentFormat format, int count_in, int count_out,
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bool dequantize, u8 scaling_exponent,
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AttributeFormat* native_format)
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{
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using ShuffleRow = std::array<__m128i, 3>;
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static const Common::EnumMap<ShuffleRow, ComponentFormat::InvalidFloat7> shuffle_lut = {
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFF00L), // 1x u8
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFF01L, 0xFFFFFF00L), // 2x u8
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFF02L, 0xFFFFFF01L, 0xFFFFFF00L)}, // 3x u8
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x00FFFFFFL), // 1x s8
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x01FFFFFFL, 0x00FFFFFFL), // 2x s8
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_mm_set_epi32(0xFFFFFFFFL, 0x02FFFFFFL, 0x01FFFFFFL, 0x00FFFFFFL)}, // 3x s8
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFF0001L), // 1x u16
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFF0203L, 0xFFFF0001L), // 2x u16
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFF0405L, 0xFFFF0203L, 0xFFFF0001L)}, // 3x u16
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x0001FFFFL), // 1x s16
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x0203FFFFL, 0x0001FFFFL), // 2x s16
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_mm_set_epi32(0xFFFFFFFFL, 0x0405FFFFL, 0x0203FFFFL, 0x0001FFFFL)}, // 3x s16
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x00010203L), // 1x float
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x04050607L, 0x00010203L), // 2x float
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_mm_set_epi32(0xFFFFFFFFL, 0x08090A0BL, 0x04050607L, 0x00010203L)}, // 3x float
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x00010203L), // 1x invalid
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x04050607L, 0x00010203L), // 2x invalid
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_mm_set_epi32(0xFFFFFFFFL, 0x08090A0BL, 0x04050607L, 0x00010203L)}, // 3x invalid
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x00010203L), // 1x invalid
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x04050607L, 0x00010203L), // 2x invalid
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_mm_set_epi32(0xFFFFFFFFL, 0x08090A0BL, 0x04050607L, 0x00010203L)}, // 3x invalid
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ShuffleRow{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x00010203L), // 1x invalid
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_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x04050607L, 0x00010203L), // 2x invalid
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_mm_set_epi32(0xFFFFFFFFL, 0x08090A0BL, 0x04050607L, 0x00010203L)}, // 3x invalid
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};
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static const __m128 scale_factors[32] = {
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_mm_set_ps1(1. / (1u << 0)), _mm_set_ps1(1. / (1u << 1)), _mm_set_ps1(1. / (1u << 2)),
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_mm_set_ps1(1. / (1u << 3)), _mm_set_ps1(1. / (1u << 4)), _mm_set_ps1(1. / (1u << 5)),
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_mm_set_ps1(1. / (1u << 6)), _mm_set_ps1(1. / (1u << 7)), _mm_set_ps1(1. / (1u << 8)),
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_mm_set_ps1(1. / (1u << 9)), _mm_set_ps1(1. / (1u << 10)), _mm_set_ps1(1. / (1u << 11)),
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_mm_set_ps1(1. / (1u << 12)), _mm_set_ps1(1. / (1u << 13)), _mm_set_ps1(1. / (1u << 14)),
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_mm_set_ps1(1. / (1u << 15)), _mm_set_ps1(1. / (1u << 16)), _mm_set_ps1(1. / (1u << 17)),
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_mm_set_ps1(1. / (1u << 18)), _mm_set_ps1(1. / (1u << 19)), _mm_set_ps1(1. / (1u << 20)),
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_mm_set_ps1(1. / (1u << 21)), _mm_set_ps1(1. / (1u << 22)), _mm_set_ps1(1. / (1u << 23)),
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_mm_set_ps1(1. / (1u << 24)), _mm_set_ps1(1. / (1u << 25)), _mm_set_ps1(1. / (1u << 26)),
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_mm_set_ps1(1. / (1u << 27)), _mm_set_ps1(1. / (1u << 28)), _mm_set_ps1(1. / (1u << 29)),
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_mm_set_ps1(1. / (1u << 30)), _mm_set_ps1(1. / (1u << 31)),
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};
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X64Reg coords = XMM0;
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const auto write_zfreeze = [&]() { // zfreeze
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if (native_format == &m_native_vtx_decl.position)
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{
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CMP(32, R(remaining_reg), Imm8(3));
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FixupBranch dont_store = J_CC(CC_AE);
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// The position cache is composed of 3 rows of 4 floats each; since each float is 4 bytes,
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// we need to scale by 4 twice to cover the 4 floats.
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LEA(32, scratch3, MScaled(remaining_reg, SCALE_4, 0));
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MOVUPS(MPIC(VertexLoaderManager::position_cache.data(), scratch3, SCALE_4), coords);
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SetJumpTarget(dont_store);
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}
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else if (native_format == &m_native_vtx_decl.normals[1])
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{
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TEST(32, R(remaining_reg), R(remaining_reg));
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FixupBranch dont_store = J_CC(CC_NZ);
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// For similar reasons, the cached tangent and binormal are 4 floats each
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MOVUPS(MPIC(VertexLoaderManager::tangent_cache.data()), coords);
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SetJumpTarget(dont_store);
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}
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else if (native_format == &m_native_vtx_decl.normals[2])
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{
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CMP(32, R(remaining_reg), R(remaining_reg));
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FixupBranch dont_store = J_CC(CC_NZ);
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// For similar reasons, the cached tangent and binormal are 4 floats each
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MOVUPS(MPIC(VertexLoaderManager::binormal_cache.data()), coords);
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SetJumpTarget(dont_store);
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}
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};
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int elem_size = GetElementSize(format);
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int load_bytes = elem_size * count_in;
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OpArg dest = MDisp(dst_reg, m_dst_ofs);
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native_format->components = count_out;
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native_format->enable = true;
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native_format->offset = m_dst_ofs;
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native_format->type = ComponentFormat::Float;
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native_format->integer = false;
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m_dst_ofs += sizeof(float) * count_out;
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if (attribute == VertexComponentFormat::Direct)
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m_src_ofs += load_bytes;
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if (cpu_info.bSSSE3)
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{
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if (load_bytes > 8)
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MOVDQU(coords, data);
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else if (load_bytes > 4)
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MOVQ_xmm(coords, data);
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else
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MOVD_xmm(coords, data);
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PSHUFB(coords, MPIC(&shuffle_lut[format][count_in - 1]));
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// Sign-extend.
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if (format == ComponentFormat::Byte)
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PSRAD(coords, 24);
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if (format == ComponentFormat::Short)
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PSRAD(coords, 16);
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}
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else
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{
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// SSE2
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X64Reg temp = XMM1;
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switch (format)
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{
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case ComponentFormat::UByte:
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MOVD_xmm(coords, data);
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PXOR(temp, R(temp));
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PUNPCKLBW(coords, R(temp));
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PUNPCKLWD(coords, R(temp));
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break;
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case ComponentFormat::Byte:
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MOVD_xmm(coords, data);
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PUNPCKLBW(coords, R(coords));
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PUNPCKLWD(coords, R(coords));
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PSRAD(coords, 24);
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break;
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case ComponentFormat::UShort:
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case ComponentFormat::Short:
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switch (count_in)
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{
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case 1:
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LoadAndSwap(32, scratch3, data);
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MOVD_xmm(coords, R(scratch3)); // ......X.
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break;
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case 2:
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LoadAndSwap(32, scratch3, data);
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MOVD_xmm(coords, R(scratch3)); // ......XY
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PSHUFLW(coords, R(coords), 0x24); // ....Y.X.
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break;
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case 3:
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LoadAndSwap(64, scratch3, data);
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MOVQ_xmm(coords, R(scratch3)); // ....XYZ.
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PUNPCKLQDQ(coords, R(coords)); // ..Z.XYZ.
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PSHUFLW(coords, R(coords), 0xAC); // ..Z.Y.X.
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break;
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}
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if (format == ComponentFormat::Short)
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PSRAD(coords, 16);
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else
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PSRLD(coords, 16);
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break;
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case ComponentFormat::Float:
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case ComponentFormat::InvalidFloat5:
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case ComponentFormat::InvalidFloat6:
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case ComponentFormat::InvalidFloat7:
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// Floats don't need to be scaled or converted,
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// so we can just load/swap/store them directly
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// and return early.
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// (In SSSE3 we still need to store them.)
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for (int i = 0; i < count_in; i++)
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{
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LoadAndSwap(32, scratch3, data);
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MOV(32, dest, R(scratch3));
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data.AddMemOffset(sizeof(float));
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dest.AddMemOffset(sizeof(float));
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// zfreeze
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if (native_format == &m_native_vtx_decl.position ||
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native_format == &m_native_vtx_decl.normals[1] ||
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native_format == &m_native_vtx_decl.normals[2])
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{
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if (cpu_info.bSSE4_1)
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{
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PINSRD(coords, R(scratch3), i);
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}
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else
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{
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PINSRW(coords, R(scratch3), 2 * i + 0);
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SHR(32, R(scratch3), Imm8(16));
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PINSRW(coords, R(scratch3), 2 * i + 1);
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}
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}
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}
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write_zfreeze();
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}
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}
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if (format < ComponentFormat::Float)
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{
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CVTDQ2PS(coords, R(coords));
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if (dequantize && scaling_exponent)
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MULPS(coords, MPIC(&scale_factors[scaling_exponent]));
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}
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switch (count_out)
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{
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case 1:
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MOVSS(dest, coords);
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break;
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case 2:
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MOVLPS(dest, coords);
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break;
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case 3:
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MOVUPS(dest, coords);
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break;
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}
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write_zfreeze();
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}
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void VertexLoaderX64::ReadColor(OpArg data, VertexComponentFormat attribute, ColorFormat format)
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{
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int load_bytes = 0;
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switch (format)
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{
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case ColorFormat::RGB888:
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case ColorFormat::RGB888x:
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case ColorFormat::RGBA8888:
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MOV(32, R(scratch1), data);
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if (format != ColorFormat::RGBA8888)
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OR(32, R(scratch1), Imm32(0xFF000000));
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MOV(32, MDisp(dst_reg, m_dst_ofs), R(scratch1));
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load_bytes = format == ColorFormat::RGB888 ? 3 : 4;
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break;
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case ColorFormat::RGB565:
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// RRRRRGGG GGGBBBBB
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// AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
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LoadAndSwap(16, scratch1, data);
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if (cpu_info.bBMI1 && cpu_info.bBMI2FastParallelBitOps)
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{
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MOV(32, R(scratch2), Imm32(0x07C3F7C0));
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PDEP(32, scratch3, scratch1, R(scratch2));
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MOV(32, R(scratch2), Imm32(0xF8FCF800));
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PDEP(32, scratch1, scratch1, R(scratch2));
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ANDN(32, scratch2, scratch2, R(scratch3));
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OR(32, R(scratch1), R(scratch2));
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}
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else
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{
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SHL(32, R(scratch1), Imm8(11));
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LEA(32, scratch2, MScaled(scratch1, SCALE_4, 0));
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LEA(32, scratch3, MScaled(scratch2, SCALE_8, 0));
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AND(32, R(scratch1), Imm32(0x0000F800));
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AND(32, R(scratch2), Imm32(0x00FC0000));
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AND(32, R(scratch3), Imm32(0xF8000000));
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OR(32, R(scratch1), R(scratch2));
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OR(32, R(scratch1), R(scratch3));
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MOV(32, R(scratch2), R(scratch1));
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SHR(32, R(scratch1), Imm8(5));
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AND(32, R(scratch1), Imm32(0x07000700));
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OR(32, R(scratch1), R(scratch2));
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SHR(32, R(scratch2), Imm8(6));
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AND(32, R(scratch2), Imm32(0x00030000));
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OR(32, R(scratch1), R(scratch2));
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}
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OR(32, R(scratch1), Imm32(0x000000FF));
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SwapAndStore(32, MDisp(dst_reg, m_dst_ofs), scratch1);
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load_bytes = 2;
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break;
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case ColorFormat::RGBA4444:
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// RRRRGGGG BBBBAAAA
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// AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
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LoadAndSwap(16, scratch1, data);
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if (cpu_info.bBMI2FastParallelBitOps)
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{
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MOV(32, R(scratch2), Imm32(0x0F0F0F0F));
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PDEP(32, scratch1, scratch1, R(scratch2));
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}
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else
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{
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MOV(32, R(scratch2), R(scratch1));
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SHL(32, R(scratch1), Imm8(8));
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OR(32, R(scratch1), R(scratch2));
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AND(32, R(scratch1), Imm32(0x00FF00FF));
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MOV(32, R(scratch2), R(scratch1));
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SHL(32, R(scratch1), Imm8(4));
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OR(32, R(scratch1), R(scratch2));
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AND(32, R(scratch1), Imm32(0x0F0F0F0F));
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}
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MOV(32, R(scratch2), R(scratch1));
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SHL(32, R(scratch1), Imm8(4));
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OR(32, R(scratch1), R(scratch2));
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SwapAndStore(32, MDisp(dst_reg, m_dst_ofs), scratch1);
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load_bytes = 2;
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break;
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case ColorFormat::RGBA6666:
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// RRRRRRGG GGGGBBBB BBAAAAAA
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// AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
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data.AddMemOffset(-1); // subtract one from address so we can use a 32bit load and bswap
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LoadAndSwap(32, scratch1, data);
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if (cpu_info.bBMI2FastParallelBitOps)
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{
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MOV(32, R(scratch2), Imm32(0xFCFCFCFC));
|
|
PDEP(32, scratch1, scratch1, R(scratch2));
|
|
MOV(32, R(scratch2), R(scratch1));
|
|
}
|
|
else
|
|
{
|
|
LEA(32, scratch2, MScaled(scratch1, SCALE_4, 0)); // ______RR RRRRGGGG GGBBBBBB AAAAAA__
|
|
AND(32, R(scratch2), Imm32(0x00003FFC)); // ________ ________ __BBBBBB AAAAAA__
|
|
SHL(32, R(scratch1), Imm8(6)); // __RRRRRR GGGGGGBB BBBBAAAA AA______
|
|
AND(32, R(scratch1), Imm32(0x3FFC0000)); // __RRRRRR GGGGGG__ ________ ________
|
|
OR(32, R(scratch1), R(scratch2)); // __RRRRRR GGGGGG__ __BBBBBB AAAAAA__
|
|
|
|
LEA(32, scratch2, MScaled(scratch1, SCALE_4, 0)); // RRRRRRGG GGGG____ BBBBBBAA AAAA____
|
|
AND(32, R(scratch2), Imm32(0xFC00FC00)); // RRRRRR__ ________ BBBBBB__ ________
|
|
AND(32, R(scratch1), Imm32(0x00FC00FC)); // ________ GGGGGG__ ________ AAAAAA__
|
|
OR(32, R(scratch1), R(scratch2)); // RRRRRR__ GGGGGG__ BBBBBB__ AAAAAA__
|
|
MOV(32, R(scratch2), R(scratch1));
|
|
}
|
|
SHR(32, R(scratch1), Imm8(6));
|
|
AND(32, R(scratch1), Imm32(0x03030303));
|
|
OR(32, R(scratch1), R(scratch2));
|
|
SwapAndStore(32, MDisp(dst_reg, m_dst_ofs), scratch1);
|
|
load_bytes = 3;
|
|
break;
|
|
}
|
|
if (attribute == VertexComponentFormat::Direct)
|
|
m_src_ofs += load_bytes;
|
|
}
|
|
|
|
void VertexLoaderX64::GenerateVertexLoader()
|
|
{
|
|
BitSet32 regs = {src_reg, dst_reg, scratch1, scratch2,
|
|
scratch3, remaining_reg, skipped_reg, base_reg};
|
|
regs &= ABI_ALL_CALLEE_SAVED;
|
|
regs[RBP] = true; // Give us a stack frame
|
|
ABI_PushRegistersAndAdjustStack(regs, 0);
|
|
|
|
// Backup count since we're going to count it down.
|
|
PUSH(32, R(ABI_PARAM3));
|
|
|
|
// ABI_PARAM3 is one of the lower registers, so free it for scratch2.
|
|
// We also have it end at a value of 0, to simplify indexing for zfreeze;
|
|
// this requires subtracting 1 at the start.
|
|
LEA(32, remaining_reg, MDisp(ABI_PARAM3, -1));
|
|
|
|
MOV(64, R(base_reg), R(ABI_PARAM4));
|
|
|
|
if (IsIndexed(m_VtxDesc.low.Position))
|
|
XOR(32, R(skipped_reg), R(skipped_reg));
|
|
|
|
// TODO: load constants into registers outside the main loop
|
|
|
|
const u8* loop_start = GetCodePtr();
|
|
|
|
if (m_VtxDesc.low.PosMatIdx)
|
|
{
|
|
MOVZX(32, 8, scratch1, MDisp(src_reg, m_src_ofs));
|
|
AND(32, R(scratch1), Imm8(0x3F));
|
|
MOV(32, MDisp(dst_reg, m_dst_ofs), R(scratch1));
|
|
|
|
// zfreeze
|
|
CMP(32, R(remaining_reg), Imm8(3));
|
|
FixupBranch dont_store = J_CC(CC_AE);
|
|
MOV(32, MPIC(VertexLoaderManager::position_matrix_index_cache.data(), remaining_reg, SCALE_4),
|
|
R(scratch1));
|
|
SetJumpTarget(dont_store);
|
|
|
|
m_native_vtx_decl.posmtx.components = 4;
|
|
m_native_vtx_decl.posmtx.enable = true;
|
|
m_native_vtx_decl.posmtx.offset = m_dst_ofs;
|
|
m_native_vtx_decl.posmtx.type = ComponentFormat::UByte;
|
|
m_native_vtx_decl.posmtx.integer = true;
|
|
m_src_ofs += sizeof(u8);
|
|
m_dst_ofs += sizeof(u32);
|
|
}
|
|
|
|
std::array<u32, 8> texmatidx_ofs;
|
|
for (size_t i = 0; i < m_VtxDesc.low.TexMatIdx.Size(); i++)
|
|
{
|
|
if (m_VtxDesc.low.TexMatIdx[i])
|
|
texmatidx_ofs[i] = m_src_ofs++;
|
|
}
|
|
|
|
OpArg data = GetVertexAddr(CPArray::Position, m_VtxDesc.low.Position);
|
|
int pos_elements = m_VtxAttr.g0.PosElements == CoordComponentCount::XY ? 2 : 3;
|
|
ReadVertex(data, m_VtxDesc.low.Position, m_VtxAttr.g0.PosFormat, pos_elements, pos_elements,
|
|
m_VtxAttr.g0.ByteDequant, m_VtxAttr.g0.PosFrac, &m_native_vtx_decl.position);
|
|
|
|
if (m_VtxDesc.low.Normal != VertexComponentFormat::NotPresent)
|
|
{
|
|
static constexpr Common::EnumMap<u8, ComponentFormat::InvalidFloat7> SCALE_MAP = {7, 6, 15, 14,
|
|
0, 0, 0, 0};
|
|
const u8 scaling_exponent = SCALE_MAP[m_VtxAttr.g0.NormalFormat];
|
|
|
|
// Normal
|
|
data = GetVertexAddr(CPArray::Normal, m_VtxDesc.low.Normal);
|
|
ReadVertex(data, m_VtxDesc.low.Normal, m_VtxAttr.g0.NormalFormat, 3, 3, true, scaling_exponent,
|
|
&m_native_vtx_decl.normals[0]);
|
|
|
|
if (m_VtxAttr.g0.NormalElements == NormalComponentCount::NTB)
|
|
{
|
|
const bool index3 = IsIndexed(m_VtxDesc.low.Normal) && m_VtxAttr.g0.NormalIndex3;
|
|
const int elem_size = GetElementSize(m_VtxAttr.g0.NormalFormat);
|
|
const int load_bytes = elem_size * 3;
|
|
|
|
// Tangent
|
|
// If in Index3 mode, and indexed components are used, replace the index with a new index.
|
|
if (index3)
|
|
data = GetVertexAddr(CPArray::Normal, m_VtxDesc.low.Normal);
|
|
// The tangent comes after the normal; even in index3 mode, this offset is applied.
|
|
// Note that this is different from adding 1 to the index, as the stride for indices may be
|
|
// different from the size of the tangent itself.
|
|
data.AddMemOffset(load_bytes);
|
|
|
|
ReadVertex(data, m_VtxDesc.low.Normal, m_VtxAttr.g0.NormalFormat, 3, 3, true,
|
|
scaling_exponent, &m_native_vtx_decl.normals[1]);
|
|
|
|
// Undo the offset above so that data points to the normal instead of the tangent.
|
|
// This way, we can add 2*elem_size below to always point to the binormal, even if we replace
|
|
// data with a new index (which would point to the normal).
|
|
data.AddMemOffset(-load_bytes);
|
|
|
|
// Binormal
|
|
if (index3)
|
|
data = GetVertexAddr(CPArray::Normal, m_VtxDesc.low.Normal);
|
|
data.AddMemOffset(load_bytes * 2);
|
|
|
|
ReadVertex(data, m_VtxDesc.low.Normal, m_VtxAttr.g0.NormalFormat, 3, 3, true,
|
|
scaling_exponent, &m_native_vtx_decl.normals[2]);
|
|
}
|
|
}
|
|
|
|
for (u8 i = 0; i < m_VtxDesc.low.Color.Size(); i++)
|
|
{
|
|
if (m_VtxDesc.low.Color[i] != VertexComponentFormat::NotPresent)
|
|
{
|
|
data = GetVertexAddr(CPArray::Color0 + i, m_VtxDesc.low.Color[i]);
|
|
ReadColor(data, m_VtxDesc.low.Color[i], m_VtxAttr.GetColorFormat(i));
|
|
m_native_vtx_decl.colors[i].components = 4;
|
|
m_native_vtx_decl.colors[i].enable = true;
|
|
m_native_vtx_decl.colors[i].offset = m_dst_ofs;
|
|
m_native_vtx_decl.colors[i].type = ComponentFormat::UByte;
|
|
m_native_vtx_decl.colors[i].integer = false;
|
|
m_dst_ofs += 4;
|
|
}
|
|
}
|
|
|
|
for (u8 i = 0; i < m_VtxDesc.high.TexCoord.Size(); i++)
|
|
{
|
|
int elements = m_VtxAttr.GetTexElements(i) == TexComponentCount::ST ? 2 : 1;
|
|
if (m_VtxDesc.high.TexCoord[i] != VertexComponentFormat::NotPresent)
|
|
{
|
|
data = GetVertexAddr(CPArray::TexCoord0 + i, m_VtxDesc.high.TexCoord[i]);
|
|
u8 scaling_exponent = m_VtxAttr.GetTexFrac(i);
|
|
ReadVertex(data, m_VtxDesc.high.TexCoord[i], m_VtxAttr.GetTexFormat(i), elements,
|
|
m_VtxDesc.low.TexMatIdx[i] ? 2 : elements, m_VtxAttr.g0.ByteDequant,
|
|
scaling_exponent, &m_native_vtx_decl.texcoords[i]);
|
|
}
|
|
if (m_VtxDesc.low.TexMatIdx[i])
|
|
{
|
|
m_native_vtx_decl.texcoords[i].components = 3;
|
|
m_native_vtx_decl.texcoords[i].enable = true;
|
|
m_native_vtx_decl.texcoords[i].type = ComponentFormat::Float;
|
|
m_native_vtx_decl.texcoords[i].integer = false;
|
|
MOVZX(64, 8, scratch1, MDisp(src_reg, texmatidx_ofs[i]));
|
|
if (m_VtxDesc.high.TexCoord[i] != VertexComponentFormat::NotPresent)
|
|
{
|
|
CVTSI2SS(XMM0, R(scratch1));
|
|
MOVSS(MDisp(dst_reg, m_dst_ofs), XMM0);
|
|
m_dst_ofs += sizeof(float);
|
|
}
|
|
else
|
|
{
|
|
m_native_vtx_decl.texcoords[i].offset = m_dst_ofs;
|
|
PXOR(XMM0, R(XMM0));
|
|
CVTSI2SS(XMM0, R(scratch1));
|
|
SHUFPS(XMM0, R(XMM0), 0x45); // 000X -> 0X00
|
|
MOVUPS(MDisp(dst_reg, m_dst_ofs), XMM0);
|
|
m_dst_ofs += sizeof(float) * 3;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Prepare for the next vertex.
|
|
ADD(64, R(dst_reg), Imm32(m_dst_ofs));
|
|
const u8* cont = GetCodePtr();
|
|
ADD(64, R(src_reg), Imm32(m_src_ofs));
|
|
|
|
SUB(32, R(remaining_reg), Imm8(1));
|
|
J_CC(CC_AE, loop_start);
|
|
|
|
// Get the original count.
|
|
POP(32, R(ABI_RETURN));
|
|
|
|
ABI_PopRegistersAndAdjustStack(regs, 0);
|
|
|
|
if (IsIndexed(m_VtxDesc.low.Position))
|
|
{
|
|
SUB(32, R(ABI_RETURN), R(skipped_reg));
|
|
RET();
|
|
|
|
SetJumpTarget(m_skip_vertex);
|
|
ADD(32, R(skipped_reg), Imm8(1));
|
|
JMP(cont);
|
|
}
|
|
else
|
|
{
|
|
RET();
|
|
}
|
|
|
|
ASSERT_MSG(VIDEO, m_vertex_size == m_src_ofs,
|
|
"Vertex size from vertex loader ({}) does not match expected vertex size ({})!\nVtx "
|
|
"desc: {:08x} {:08x}\nVtx attr: {:08x} {:08x} {:08x}",
|
|
m_src_ofs, m_vertex_size, m_VtxDesc.low.Hex, m_VtxDesc.high.Hex, m_VtxAttr.g0.Hex,
|
|
m_VtxAttr.g1.Hex, m_VtxAttr.g2.Hex);
|
|
m_native_vtx_decl.stride = m_dst_ofs;
|
|
}
|
|
|
|
int VertexLoaderX64::RunVertices(const u8* src, u8* dst, int count)
|
|
{
|
|
m_numLoadedVertices += count;
|
|
return ((int (*)(const u8* src, u8* dst, int count, const void* base))region)(src, dst, count,
|
|
memory_base_ptr);
|
|
}
|