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Initial refactoring of gpu/.

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Runs too fast - now there are ringbuffer wrapping issues.
This commit is contained in:
Ben Vanik
2014-06-08 11:23:55 -07:00
parent 4072640a64
commit 295910c3d8
70 changed files with 5923 additions and 6095 deletions
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266
src/xenia/gpu/shader.cc
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@@ -1,266 +0,0 @@
/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2013 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include <xenia/gpu/shader.h>
#include <xenia/gpu/xenos/ucode_disassembler.h>
using namespace xe;
using namespace xe::gpu;
using namespace xe::gpu::xenos;
Shader::Shader(
XE_GPU_SHADER_TYPE type,
const uint8_t* src_ptr, size_t length,
uint64_t hash) :
type_(type), hash_(hash), is_prepared_(false), disasm_src_(NULL) {
xe_zero_struct(&alloc_counts_, sizeof(alloc_counts_));
xe_zero_struct(&vtx_buffer_inputs_, sizeof(vtx_buffer_inputs_));
xe_zero_struct(&tex_buffer_inputs_, sizeof(tex_buffer_inputs_));
// Verify.
dword_count_ = length / 4;
XEASSERT(dword_count_ <= 512);
// Copy bytes and swap.
size_t byte_size = dword_count_ * sizeof(uint32_t);
dwords_ = (uint32_t*)xe_malloc(byte_size);
for (uint32_t n = 0; n < dword_count_; n++) {
dwords_[n] = XEGETUINT32BE(src_ptr + n * 4);
}
// Gather input/output registers/etc.
GatherIO();
// Disassemble, for debugging.
disasm_src_ = DisassembleShader(type_, dwords_, dword_count_);
}
Shader::~Shader() {
if (disasm_src_) {
xe_free(disasm_src_);
}
xe_free(dwords_);
}
void Shader::GatherIO() {
// Process all execution blocks.
instr_cf_t cfa;
instr_cf_t cfb;
for (int idx = 0; idx < dword_count_; idx += 3) {
uint32_t dword_0 = dwords_[idx + 0];
uint32_t dword_1 = dwords_[idx + 1];
uint32_t dword_2 = dwords_[idx + 2];
cfa.dword_0 = dword_0;
cfa.dword_1 = dword_1 & 0xFFFF;
cfb.dword_0 = (dword_1 >> 16) | (dword_2 << 16);
cfb.dword_1 = dword_2 >> 16;
if (cfa.opc == ALLOC) {
GatherAlloc(&cfa.alloc);
} else if (cfa.is_exec()) {
GatherExec(&cfa.exec);
}
if (cfb.opc == ALLOC) {
GatherAlloc(&cfb.alloc);
} else if (cfb.is_exec()) {
GatherExec(&cfb.exec);
}
if (cfa.opc == EXEC_END || cfb.opc == EXEC_END) {
break;
}
}
}
void Shader::GatherAlloc(const instr_cf_alloc_t* cf) {
allocs_.push_back(*cf);
switch (cf->buffer_select) {
case SQ_POSITION:
// Position (SV_POSITION).
alloc_counts_.positions += cf->size + 1;
break;
case SQ_PARAMETER_PIXEL:
// Output to PS (if VS), or frag output (if PS).
alloc_counts_.params += cf->size + 1;
break;
case SQ_MEMORY:
// MEMEXPORT?
alloc_counts_.memories += cf->size + 1;
break;
}
}
void Shader::GatherExec(const instr_cf_exec_t* cf) {
execs_.push_back(*cf);
uint32_t sequence = cf->serialize;
for (uint32_t i = 0; i < cf->count; i++) {
uint32_t alu_off = (cf->address + i);
int sync = sequence & 0x2;
if (sequence & 0x1) {
const instr_fetch_t* fetch =
(const instr_fetch_t*)(dwords_ + alu_off * 3);
switch (fetch->opc) {
case VTX_FETCH:
GatherVertexFetch(&fetch->vtx);
break;
case TEX_FETCH:
GatherTextureFetch(&fetch->tex);
break;
case TEX_GET_BORDER_COLOR_FRAC:
case TEX_GET_COMP_TEX_LOD:
case TEX_GET_GRADIENTS:
case TEX_GET_WEIGHTS:
case TEX_SET_TEX_LOD:
case TEX_SET_GRADIENTS_H:
case TEX_SET_GRADIENTS_V:
default:
XEASSERTALWAYS();
break;
}
} else {
// TODO(benvanik): gather registers used, predicate bits used, etc.
const instr_alu_t* alu =
(const instr_alu_t*)(dwords_ + alu_off * 3);
if (alu->vector_write_mask) {
if (alu->export_data && alu->vector_dest == 63) {
alloc_counts_.point_size = true;
}
}
if (alu->scalar_write_mask || !alu->vector_write_mask) {
if (alu->export_data && alu->scalar_dest == 63) {
alloc_counts_.point_size = true;
}
}
}
sequence >>= 2;
}
}
void Shader::GatherVertexFetch(const instr_fetch_vtx_t* vtx) {
// dst_reg/dst_swiz
// src_reg/src_swiz
// format = a2xx_sq_surfaceformat
// format_comp_all ? signed : unsigned
// num_format_all ? normalized
// stride
// offset
// const_index/const_index_sel -- fetch constant register
// num_format_all ? integer : fraction
// exp_adjust_all - [-32,31] - (2^exp_adjust_all)*fetch - 0 = default
// Sometimes games have fetches that just produce constants. We can
// ignore those.
uint32_t dst_swiz = vtx->dst_swiz;
bool fetches_any_data = false;
for (int i = 0; i < 4; i++) {
if ((dst_swiz & 0x7) == 4) {
// 0.0
} else if ((dst_swiz & 0x7) == 5) {
// 1.0
} else if ((dst_swiz & 0x7) == 6) {
// ?
} else if ((dst_swiz & 0x7) == 7) {
// Previous register value.
} else {
fetches_any_data = true;
break;
}
dst_swiz >>= 3;
}
if (!fetches_any_data) {
return;
}
uint32_t fetch_slot = vtx->const_index * 3 + vtx->const_index_sel;
auto& inputs = vtx_buffer_inputs_;
vtx_buffer_element_t* el = NULL;
for (size_t n = 0; n < inputs.count; n++) {
auto& input = inputs.descs[n];
if (input.fetch_slot == fetch_slot) {
XEASSERT(input.element_count + 1 < XECOUNT(input.elements));
// It may not hold that all strides are equal, but I hope it does.
XEASSERT(!vtx->stride || input.stride_words == vtx->stride);
el = &input.elements[input.element_count++];
break;
}
}
if (!el) {
XEASSERTNOTZERO(vtx->stride);
XEASSERT(inputs.count + 1 < XECOUNT(inputs.descs));
auto& input = inputs.descs[inputs.count++];
input.input_index = inputs.count - 1;
input.fetch_slot = fetch_slot;
input.stride_words = vtx->stride;
el = &input.elements[input.element_count++];
}
el->vtx_fetch = *vtx;
el->format = vtx->format;
el->offset_words = vtx->offset;
el->size_words = 0;
switch (el->format) {
case FMT_8_8_8_8:
case FMT_2_10_10_10:
case FMT_10_11_11:
case FMT_11_11_10:
el->size_words = 1;
break;
case FMT_16_16:
case FMT_16_16_FLOAT:
el->size_words = 1;
break;
case FMT_16_16_16_16:
case FMT_16_16_16_16_FLOAT:
el->size_words = 2;
break;
case FMT_32:
case FMT_32_FLOAT:
el->size_words = 1;
break;
case FMT_32_32:
case FMT_32_32_FLOAT:
el->size_words = 2;
break;
case FMT_32_32_32_FLOAT:
el->size_words = 3;
break;
case FMT_32_32_32_32:
case FMT_32_32_32_32_FLOAT:
el->size_words = 4;
break;
default:
XELOGE("Unknown vertex format: %d", el->format);
XEASSERTALWAYS();
break;
}
}
const Shader::vtx_buffer_inputs_t* Shader::GetVertexBufferInputs() {
return &vtx_buffer_inputs_;
}
void Shader::GatherTextureFetch(const xenos::instr_fetch_tex_t* tex) {
// TODO(benvanik): check dest_swiz to see if we are writing anything.
auto& inputs = tex_buffer_inputs_;
XEASSERT(inputs.count + 1 < XECOUNT(inputs.descs));
auto& input = inputs.descs[inputs.count++];
input.input_index = inputs.count - 1;
input.fetch_slot = tex->const_idx & 0xF; // ?
input.tex_fetch = *tex;
// Format mangling, size estimation, etc.
}
const Shader::tex_buffer_inputs_t* Shader::GetTextureBufferInputs() {
return &tex_buffer_inputs_;
}