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Merge pull request #2141 from Tilka/position_cache 

zfreeze: cache vertex positions
This commit is contained in:
Ryan Houdek 2015-06-07 16:44:40 -04:00
parent 82fa01804c 10bd68936c
commit 588de63f9c
10 changed files with 123 additions and 36 deletions
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1
Source/Core/Common/x64Emitter.cpp
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@ -1823,6 +1823,7 @@ void XEmitter::PCMPGTD(X64Reg dest, const OpArg& arg) {WriteSSEOp(0x66, 0x66, d
void XEmitter::PEXTRW(X64Reg dest, const OpArg& arg, u8 subreg) {WriteSSEOp(0x66, 0xC5, dest, arg); Write8(subreg);}
void XEmitter::PINSRW(X64Reg dest, const OpArg& arg, u8 subreg) {WriteSSEOp(0x66, 0xC4, dest, arg); Write8(subreg);}
void XEmitter::PINSRD(X64Reg dest, const OpArg& arg, u8 subreg) {WriteSSE41Op(0x66, 0x3A22, dest, arg); Write8(subreg);}
void XEmitter::PMADDWD(X64Reg dest, const OpArg& arg) {WriteSSEOp(0x66, 0xF5, dest, arg); }
void XEmitter::PSADBW(X64Reg dest, const OpArg& arg) {WriteSSEOp(0x66, 0xF6, dest, arg);}

1
Source/Core/Common/x64Emitter.h
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@ -711,6 +711,7 @@ public:
void PEXTRW(X64Reg dest, const OpArg& arg, u8 subreg);
void PINSRW(X64Reg dest, const OpArg& arg, u8 subreg);
void PINSRD(X64Reg dest, const OpArg& arg, u8 subreg);
void PMADDWD(X64Reg dest, const OpArg& arg);
void PSADBW(X64Reg dest, const OpArg& arg);

5
Source/Core/VideoCommon/VertexLoader.cpp
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@ -14,6 +14,7 @@
#include "VideoCommon/VertexLoader_Normal.h"
#include "VideoCommon/VertexLoader_Position.h"
#include "VideoCommon/VertexLoader_TextCoord.h"
#include "VideoCommon/VertexLoaderManager.h"
#include "VideoCommon/VideoCommon.h"
#include "VideoCommon/VideoConfig.h"
@ -24,6 +25,8 @@ u8* g_vertex_manager_write_ptr;
static void LOADERDECL PosMtx_ReadDirect_UByte(VertexLoader* loader)
{
u32 posmtx = DataReadU8() & 0x3f;
if (loader->m_counter < 3)
VertexLoaderManager::position_matrix_index[loader->m_counter] = posmtx;
DataWrite<u32>(posmtx);
PRIM_LOG("posmtx: %d, ", posmtx);
}
@ -316,7 +319,7 @@ int VertexLoader::RunVertices(DataReader src, DataReader dst, int count)
m_numLoadedVertices += count;
m_skippedVertices = 0;
for (int s = 0; s < count; s++)
for (m_counter = count - 1; m_counter >= 0; m_counter--)
{
m_tcIndex = 0;
m_colIndex = 0;

1
Source/Core/VideoCommon/VertexLoader.h
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@ -49,6 +49,7 @@ public:
int m_texmtxread;
bool m_vertexSkip;
int m_skippedVertices;
int m_counter;
private:
// Pipeline.

20
Source/Core/VideoCommon/VertexLoaderARM64.cpp
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@ -165,6 +165,18 @@ int VertexLoaderARM64::ReadVertex(u64 attribute, int format, int count_in, int c
m_float_emit.ST1(32, 1, coords, EncodeRegTo64(scratch2_reg));
}
// Z-Freeze
if (native_format == &m_native_vtx_decl.position)
{
CMP(count_reg, 3);
FixupBranch dont_store = B(CC_GT);
MOVI2R(EncodeRegTo64(scratch2_reg), (u64)VertexLoaderManager::position_cache);
ORR(scratch1_reg, WSP, count_reg, ArithOption(count_reg, ST_LSL, 4));
ADD(EncodeRegTo64(scratch1_reg), EncodeRegTo64(scratch1_reg), EncodeRegTo64(scratch2_reg));
m_float_emit.STUR(write_size, coords, EncodeRegTo64(scratch1_reg), -16);
SetJumpTarget(dont_store);
}
native_format->components = count_out;
native_format->enable = true;
native_format->offset = m_dst_ofs;
@ -342,6 +354,14 @@ void VertexLoaderARM64::GenerateVertexLoader()
LDRB(INDEX_UNSIGNED, scratch1_reg, src_reg, m_src_ofs);
AND(scratch1_reg, scratch1_reg, 0, 5);
STR(INDEX_UNSIGNED, scratch1_reg, dst_reg, m_dst_ofs);
// Z-Freeze
CMP(count_reg, 3);
FixupBranch dont_store = B(CC_GT);
MOVI2R(EncodeRegTo64(scratch2_reg), (u64)VertexLoaderManager::position_matrix_index - sizeof(u32));
STR(INDEX_UNSIGNED, scratch1_reg, EncodeRegTo64(scratch2_reg), 0);
SetJumpTarget(dont_store);
m_native_components |= VB_HAS_POSMTXIDX;
m_native_vtx_decl.posmtx.components = 4;
m_native_vtx_decl.posmtx.enable = true;

3
Source/Core/VideoCommon/VertexLoaderManager.cpp
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@ -26,6 +26,9 @@
namespace VertexLoaderManager
{
float position_cache[3][4];
u32 position_matrix_index[3];
typedef std::unordered_map<PortableVertexDeclaration, std::unique_ptr<NativeVertexFormat>> NativeVertexFormatMap;
static NativeVertexFormatMap s_native_vertex_map;
static NativeVertexFormat* s_current_vtx_fmt;

5
Source/Core/VideoCommon/VertexLoaderManager.h
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@ -28,5 +28,10 @@ namespace VertexLoaderManager
// Resolved pointers to array bases. Used by vertex loaders.
extern u8 *cached_arraybases[12];
void UpdateVertexArrayPointers();
// Position cache for zfreeze (3 vertices, 4 floats each to allow SIMD overwrite).
// These arrays are in reverse order.
extern float position_cache[3][4];
extern u32 position_matrix_index[3];
}

83
Source/Core/VideoCommon/VertexLoaderX64.cpp
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@ -23,6 +23,11 @@ static const X64Reg base_reg = RBX;
static const u8* memory_base_ptr = (u8*)&g_main_cp_state.array_strides;
static OpArg MPIC(const void* ptr, X64Reg scale_reg, int scale = SCALE_1)
{
return MComplex(base_reg, scale_reg, scale, (s32)((u8*)ptr - memory_base_ptr));
}
static OpArg MPIC(const void* ptr)
{
return MDisp(base_reg, (s32)((u8*)ptr - memory_base_ptr));
@ -77,7 +82,7 @@ OpArg VertexLoaderX64::GetVertexAddr(int array, u64 attribute)
int VertexLoaderX64::ReadVertex(OpArg data, u64 attribute, int format, int count_in, int count_out, bool dequantize, u8 scaling_exponent, AttributeFormat* native_format)
{
static const __m128i shuffle_lut[4][3] = {
static const __m128i shuffle_lut[5][3] = {
{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFF00L), // 1x u8
_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFF01L, 0xFFFFFF00L), // 2x u8
_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFF02L, 0xFFFFFF01L, 0xFFFFFF00L)}, // 3x u8
@ -90,6 +95,9 @@ int VertexLoaderX64::ReadVertex(OpArg data, u64 attribute, int format, int count
{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x0001FFFFL), // 1x s16
_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x0203FFFFL, 0x0001FFFFL), // 2x s16
_mm_set_epi32(0xFFFFFFFFL, 0x0405FFFFL, 0x0203FFFFL, 0x0001FFFFL)}, // 3x s16
{_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0xFFFFFFFFL, 0x00010203L), // 1x float
_mm_set_epi32(0xFFFFFFFFL, 0xFFFFFFFFL, 0x04050607L, 0x00010203L), // 2x float
_mm_set_epi32(0xFFFFFFFFL, 0x08090A0BL, 0x04050607L, 0x00010203L)}, // 3x float
};
static const __m128 scale_factors[32] = {
_mm_set_ps1(1./(1u<< 0)), _mm_set_ps1(1./(1u<< 1)), _mm_set_ps1(1./(1u<< 2)), _mm_set_ps1(1./(1u<< 3)),
@ -119,21 +127,6 @@ int VertexLoaderX64::ReadVertex(OpArg data, u64 attribute, int format, int count
if (attribute == DIRECT)
m_src_ofs += load_bytes;
if (format == FORMAT_FLOAT)
{
// Floats don't need to be scaled or converted,
// so we can just load/swap/store them directly
// and return early.
for (int i = 0; i < count_in; i++)
{
LoadAndSwap(32, scratch3, data);
MOV(32, dest, R(scratch3));
data.AddMemOffset(sizeof(float));
dest.AddMemOffset(sizeof(float));
}
return load_bytes;
}
if (cpu_info.bSSSE3)
{
if (load_bytes > 8)
@ -194,13 +187,54 @@ int VertexLoaderX64::ReadVertex(OpArg data, u64 attribute, int format, int count
else
PSRLD(coords, 16);
break;
case FORMAT_FLOAT:
// Floats don't need to be scaled or converted,
// so we can just load/swap/store them directly
// and return early.
// (In SSSE3 we still need to store them.)
for (int i = 0; i < count_in; i++)
{
LoadAndSwap(32, scratch3, data);
MOV(32, dest, R(scratch3));
data.AddMemOffset(sizeof(float));
dest.AddMemOffset(sizeof(float));
// zfreeze
if (native_format == &m_native_vtx_decl.position)
{
if (cpu_info.bSSE4_1)
{
PINSRD(coords, R(scratch3), i);
}
else
{
PINSRW(coords, R(scratch3), 2 * i + 0);
SHR(32, R(scratch3), Imm8(16));
PINSRW(coords, R(scratch3), 2 * i + 1);
}
}
}
// zfreeze
if (native_format == &m_native_vtx_decl.position)
{
CMP(32, R(count_reg), Imm8(3));
FixupBranch dont_store = J_CC(CC_A);
LEA(32, scratch3, MScaled(count_reg, SCALE_4, -4));
MOVUPS(MPIC(VertexLoaderManager::position_cache, scratch3, SCALE_4), coords);
SetJumpTarget(dont_store);
}
return load_bytes;
}
}
if (format != FORMAT_FLOAT)
{
CVTDQ2PS(coords, R(coords));
if (dequantize && scaling_exponent)
MULPS(coords, MPIC(&scale_factors[scaling_exponent]));
}
switch (count_out)
{
@ -209,6 +243,16 @@ int VertexLoaderX64::ReadVertex(OpArg data, u64 attribute, int format, int count
case 3: MOVUPS(dest, coords); break;
}
// zfreeze
if (native_format == &m_native_vtx_decl.position)
{
CMP(32, R(count_reg), Imm8(3));
FixupBranch dont_store = J_CC(CC_A);
LEA(32, scratch3, MScaled(count_reg, SCALE_4, -4));
MOVUPS(MPIC(VertexLoaderManager::position_cache, scratch3, SCALE_4), coords);
SetJumpTarget(dont_store);
}
return load_bytes;
}
@ -384,6 +428,13 @@ void VertexLoaderX64::GenerateVertexLoader()
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(count_reg), Imm8(3));
FixupBranch dont_store = J_CC(CC_A);
MOV(32, MPIC(VertexLoaderManager::position_matrix_index - 1, count_reg, SCALE_4), R(scratch1));
SetJumpTarget(dont_store);
m_native_components |= VB_HAS_POSMTXIDX;
m_native_vtx_decl.posmtx.components = 4;
m_native_vtx_decl.posmtx.enable = true;

14
Source/Core/VideoCommon/VertexLoader_Position.cpp
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@ -32,7 +32,12 @@ void LOADERDECL Pos_ReadDirect(VertexLoader* loader)
DataReader src(g_video_buffer_read_ptr, nullptr);
for (int i = 0; i < N; ++i)
dst.Write(PosScale(src.Read<T>(), scale));
{
float value = PosScale(src.Read<T>(), scale);
if (loader->m_counter < 3)
VertexLoaderManager::position_cache[loader->m_counter][i] = value;
dst.Write(value);
}
g_vertex_manager_write_ptr = dst.GetPointer();
g_video_buffer_read_ptr = src.GetPointer();
@ -52,7 +57,12 @@ void LOADERDECL Pos_ReadIndex(VertexLoader* loader)
DataReader dst(g_vertex_manager_write_ptr, nullptr);
for (int i = 0; i < N; ++i)
dst.Write(PosScale(Common::FromBigEndian(data[i]), scale));
{
float value = PosScale(Common::FromBigEndian(data[i]), scale);
if (loader->m_counter < 3)
VertexLoaderManager::position_cache[loader->m_counter][i] = value;
dst.Write(value);
}
g_vertex_manager_write_ptr = dst.GetPointer();
LOG_VTX();

20
Source/Core/VideoCommon/VertexManagerBase.cpp
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@ -279,7 +279,6 @@ void VertexManager::DoState(PointerWrap& p)
void VertexManager::CalculateZSlope(NativeVertexFormat* format)
{
float vtx[9];
float out[12];
float viewOffset[2] = { xfmem.viewport.xOrig - bpmem.scissorOffset.x * 2,
xfmem.viewport.yOrig - bpmem.scissorOffset.y * 2};
@ -290,31 +289,24 @@ void VertexManager::CalculateZSlope(NativeVertexFormat* format)
// Global matrix ID.
u32 mtxIdx = g_main_cp_state.matrix_index_a.PosNormalMtxIdx;
const PortableVertexDeclaration vert_decl = format->GetVertexDeclaration();
size_t posOff = vert_decl.position.offset;
size_t mtxOff = vert_decl.posmtx.offset;
// Make sure the buffer contains at least 3 vertices.
if ((s_pCurBufferPointer - s_pBaseBufferPointer) < (vert_decl.stride * 3))
return;
// Lookup vertices of the last rendered triangle and software-transform them
// This allows us to determine the depth slope, which will be used if z--freeze
// This allows us to determine the depth slope, which will be used if z-freeze
// is enabled in the following flush.
for (unsigned int i = 0; i < 3; ++i)
{
u8* vtx_ptr = s_pCurBufferPointer - vert_decl.stride * (3 - i);
vtx[0 + i * 3] = ((float*)(vtx_ptr + posOff))[0];
vtx[1 + i * 3] = ((float*)(vtx_ptr + posOff))[1];
if (vert_decl.position.components == 3)
vtx[2 + i * 3] = ((float*)(vtx_ptr + posOff))[2];
else
vtx[2 + i * 3] = 0;
// If this vertex format has per-vertex position matrix IDs, look it up.
if (vert_decl.posmtx.enable)
mtxIdx = *((u32*)(vtx_ptr + mtxOff));
mtxIdx = VertexLoaderManager::position_matrix_index[2 - i];
VertexShaderManager::TransformToClipSpace(&vtx[i * 3], &out[i * 4], mtxIdx);
if (vert_decl.position.components == 2)
VertexLoaderManager::position_cache[2 - i][2] = 0;
VertexShaderManager::TransformToClipSpace(&VertexLoaderManager::position_cache[2 - i][0], &out[i * 4], mtxIdx);
// Transform to Screenspace
float inv_w = 1.0f / out[3 + i * 4];