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Moved vertex processing into vertex_processor

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This commit is contained in:
tfarley 2015-04-18 19:17:25 -04:00
parent 5e55a525d8
commit d9b1c0bbc4
4 changed files with 167 additions and 130 deletions
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2
src/video_core/CMakeLists.txt
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@ -8,6 +8,7 @@ set(SRCS
primitive_assembly.cpp
rasterizer.cpp
utils.cpp
vertex_processor.cpp
vertex_shader.cpp
video_core.cpp
)
@ -28,6 +29,7 @@ set(HEADERS
rasterizer.h
renderer_base.h
utils.h
vertex_processor.h
vertex_shader.h
video_core.h
)

132
src/video_core/command_processor.cpp
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@ -2,16 +2,12 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <boost/range/algorithm/fill.hpp>
#include "common/profiler.h"
#include "clipper.h"
#include "command_processor.h"
#include "math.h"
#include "pica.h"
#include "primitive_assembly.h"
#include "vertex_shader.h"
#include "vertex_processor.h"
#include "core/hle/service/gsp_gpu.h"
#include "core/hw/gpu.h"
@ -61,131 +57,7 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
DebugUtils::DumpTevStageConfig(registers.GetTevStages());
if (g_debug_context)
g_debug_context->OnEvent(DebugContext::Event::IncomingPrimitiveBatch, nullptr);
const auto& attribute_config = registers.vertex_attributes;
const u32 base_address = attribute_config.GetPhysicalBaseAddress();
// Information about internal vertex attributes
u32 vertex_attribute_sources[16];
boost::fill(vertex_attribute_sources, 0xdeadbeef);
u32 vertex_attribute_strides[16];
u32 vertex_attribute_formats[16];
// HACK: Initialize vertex_attribute_elements to zero to prevent infinite loops below.
// This is one of the hacks required to deal with uninitalized vertex attributes.
// TODO: Fix this properly.
u32 vertex_attribute_elements[16] = {};
u32 vertex_attribute_element_size[16];
// Setup attribute data from loaders
for (int loader = 0; loader < 12; ++loader) {
const auto& loader_config = attribute_config.attribute_loaders[loader];
u32 load_address = base_address + loader_config.data_offset;
// TODO: What happens if a loader overwrites a previous one's data?
for (unsigned component = 0; component < loader_config.component_count; ++component) {
u32 attribute_index = loader_config.GetComponent(component);
vertex_attribute_sources[attribute_index] = load_address;
vertex_attribute_strides[attribute_index] = static_cast<u32>(loader_config.byte_count);
vertex_attribute_formats[attribute_index] = static_cast<u32>(attribute_config.GetFormat(attribute_index));
vertex_attribute_elements[attribute_index] = attribute_config.GetNumElements(attribute_index);
vertex_attribute_element_size[attribute_index] = attribute_config.GetElementSizeInBytes(attribute_index);
load_address += attribute_config.GetStride(attribute_index);
}
}
// Load vertices
bool is_indexed = (id == PICA_REG_INDEX(trigger_draw_indexed));
const auto& index_info = registers.index_array;
const u8* index_address_8 = Memory::GetPointer(PAddrToVAddr(base_address + index_info.offset));
const u16* index_address_16 = (u16*)index_address_8;
bool index_u16 = index_info.format != 0;
DebugUtils::GeometryDumper geometry_dumper;
PrimitiveAssembler<VertexShader::OutputVertex> clipper_primitive_assembler(registers.triangle_topology.Value());
PrimitiveAssembler<DebugUtils::GeometryDumper::Vertex> dumping_primitive_assembler(registers.triangle_topology.Value());
for (unsigned int index = 0; index < registers.num_vertices; ++index)
{
unsigned int vertex = is_indexed ? (index_u16 ? index_address_16[index] : index_address_8[index]) : index;
if (is_indexed) {
// TODO: Implement some sort of vertex cache!
}
// Initialize data for the current vertex
VertexShader::InputVertex input;
// Load a debugging token to check whether this gets loaded by the running
// application or not.
static const float24 debug_token = float24::FromRawFloat24(0x00abcdef);
input.attr[0].w = debug_token;
for (int i = 0; i < attribute_config.GetNumTotalAttributes(); ++i) {
for (unsigned int comp = 0; comp < vertex_attribute_elements[i]; ++comp) {
const u8* srcdata = Memory::GetPointer(PAddrToVAddr(vertex_attribute_sources[i] + vertex_attribute_strides[i] * vertex + comp * vertex_attribute_element_size[i]));
// TODO(neobrain): Ocarina of Time 3D has GetNumTotalAttributes return 8,
// yet only provides 2 valid source data addresses. Need to figure out
// what's wrong there, until then we just continue when address lookup fails
if (srcdata == nullptr)
continue;
const float srcval = (vertex_attribute_formats[i] == 0) ? *(s8*)srcdata :
(vertex_attribute_formats[i] == 1) ? *(u8*)srcdata :
(vertex_attribute_formats[i] == 2) ? *(s16*)srcdata :
*(float*)srcdata;
input.attr[i][comp] = float24::FromFloat32(srcval);
LOG_TRACE(HW_GPU, "Loaded component %x of attribute %x for vertex %x (index %x) from 0x%08x + 0x%08lx + 0x%04lx: %f",
comp, i, vertex, index,
attribute_config.GetPhysicalBaseAddress(),
vertex_attribute_sources[i] - base_address,
vertex_attribute_strides[i] * vertex + comp * vertex_attribute_element_size[i],
input.attr[i][comp].ToFloat32());
}
}
// HACK: Some games do not initialize the vertex position's w component. This leads
// to critical issues since it messes up perspective division. As a
// workaround, we force the fourth component to 1.0 if we find this to be the
// case.
// To do this, we additionally have to assume that the first input attribute
// is the vertex position, since there's no information about this other than
// the empiric observation that this is usually the case.
if (input.attr[0].w == debug_token)
input.attr[0].w = float24::FromFloat32(1.0);
if (g_debug_context)
g_debug_context->OnEvent(DebugContext::Event::VertexLoaded, (void*)&input);
// NOTE: When dumping geometry, we simply assume that the first input attribute
// corresponds to the position for now.
DebugUtils::GeometryDumper::Vertex dumped_vertex = {
input.attr[0][0].ToFloat32(), input.attr[0][1].ToFloat32(), input.attr[0][2].ToFloat32()
};
using namespace std::placeholders;
dumping_primitive_assembler.SubmitVertex(dumped_vertex,
std::bind(&DebugUtils::GeometryDumper::AddTriangle,
&geometry_dumper, _1, _2, _3));
// Send to vertex shader
VertexShader::OutputVertex output = VertexShader::RunShader(input, attribute_config.GetNumTotalAttributes());
if (is_indexed) {
// TODO: Add processed vertex to vertex cache!
}
// Send to triangle clipper
clipper_primitive_assembler.SubmitVertex(output, Clipper::ProcessTriangle);
}
geometry_dumper.Dump();
if (g_debug_context)
g_debug_context->OnEvent(DebugContext::Event::FinishedPrimitiveBatch, nullptr);
Pica::VertexProcessor::ProcessBatch(id == PICA_REG_INDEX(trigger_draw_indexed), Clipper::ProcessTriangle);
break;
}

145
src/video_core/vertex_processor.cpp Normal file
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@ -0,0 +1,145 @@
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <boost/range/algorithm/fill.hpp>
#include "pica.h"
#include "vertex_processor.h"
#include "vertex_shader.h"
#include "debug_utils/debug_utils.h"
namespace Pica {
namespace VertexProcessor {
/// Runs the current PICA vertex batch through the shader interpreter, and sends resulting primitives to triangle_handler
void ProcessBatch(bool is_indexed, PrimitiveAssembler<VertexShader::OutputVertex>::TriangleHandler triangle_handler) {
if (g_debug_context)
g_debug_context->OnEvent(DebugContext::Event::IncomingPrimitiveBatch, nullptr);
const auto& attribute_config = registers.vertex_attributes;
const u32 base_address = attribute_config.GetPhysicalBaseAddress();
// Information about internal vertex attributes
u32 vertex_attribute_sources[16];
boost::fill(vertex_attribute_sources, 0xdeadbeef);
u32 vertex_attribute_strides[16];
u32 vertex_attribute_formats[16];
// HACK: Initialize vertex_attribute_elements to zero to prevent infinite loops below.
// This is one of the hacks required to deal with uninitalized vertex attributes.
// TODO: Fix this properly.
u32 vertex_attribute_elements[16] = {};
u32 vertex_attribute_element_size[16];
// Setup attribute data from loaders
for (int loader = 0; loader < 12; ++loader) {
const auto& loader_config = attribute_config.attribute_loaders[loader];
u32 load_address = base_address + loader_config.data_offset;
// TODO: What happens if a loader overwrites a previous one's data?
for (unsigned component = 0; component < loader_config.component_count; ++component) {
u32 attribute_index = loader_config.GetComponent(component);
vertex_attribute_sources[attribute_index] = load_address;
vertex_attribute_strides[attribute_index] = static_cast<u32>(loader_config.byte_count);
vertex_attribute_formats[attribute_index] = static_cast<u32>(attribute_config.GetFormat(attribute_index));
vertex_attribute_elements[attribute_index] = attribute_config.GetNumElements(attribute_index);
vertex_attribute_element_size[attribute_index] = attribute_config.GetElementSizeInBytes(attribute_index);
load_address += attribute_config.GetStride(attribute_index);
}
}
// Load vertices
const auto& index_info = registers.index_array;
const u8* index_address_8 = Memory::GetPointer(PAddrToVAddr(base_address + index_info.offset));
const u16* index_address_16 = (u16*)index_address_8;
bool index_u16 = index_info.format != 0;
DebugUtils::GeometryDumper geometry_dumper;
PrimitiveAssembler<VertexShader::OutputVertex> clipper_primitive_assembler(registers.triangle_topology.Value());
PrimitiveAssembler<DebugUtils::GeometryDumper::Vertex> dumping_primitive_assembler(registers.triangle_topology.Value());
for (unsigned int index = 0; index < registers.num_vertices; ++index)
{
unsigned int vertex = is_indexed ? (index_u16 ? index_address_16[index] : index_address_8[index]) : index;
if (is_indexed) {
// TODO: Implement some sort of vertex cache!
}
// Initialize data for the current vertex
VertexShader::InputVertex input;
// Load a debugging token to check whether this gets loaded by the running
// application or not.
static const float24 debug_token = float24::FromRawFloat24(0x00abcdef);
input.attr[0].w = debug_token;
for (int i = 0; i < attribute_config.GetNumTotalAttributes(); ++i) {
for (unsigned int comp = 0; comp < vertex_attribute_elements[i]; ++comp) {
const u8* srcdata = Memory::GetPointer(PAddrToVAddr(vertex_attribute_sources[i] + vertex_attribute_strides[i] * vertex + comp * vertex_attribute_element_size[i]));
// TODO(neobrain): Ocarina of Time 3D has GetNumTotalAttributes return 8,
// yet only provides 2 valid source data addresses. Need to figure out
// what's wrong there, until then we just continue when address lookup fails
if (srcdata == nullptr)
continue;
const float srcval = (vertex_attribute_formats[i] == 0) ? *(s8*)srcdata :
(vertex_attribute_formats[i] == 1) ? *(u8*)srcdata :
(vertex_attribute_formats[i] == 2) ? *(s16*)srcdata :
*(float*)srcdata;
input.attr[i][comp] = float24::FromFloat32(srcval);
LOG_TRACE(HW_GPU, "Loaded component %x of attribute %x for vertex %x (index %x) from 0x%08x + 0x%08lx + 0x%04lx: %f",
comp, i, vertex, index,
attribute_config.GetPhysicalBaseAddress(),
vertex_attribute_sources[i] - base_address,
vertex_attribute_strides[i] * vertex + comp * vertex_attribute_element_size[i],
input.attr[i][comp].ToFloat32());
}
}
// HACK: Some games do not initialize the vertex position's w component. This leads
// to critical issues since it messes up perspective division. As a
// workaround, we force the fourth component to 1.0 if we find this to be the
// case.
// To do this, we additionally have to assume that the first input attribute
// is the vertex position, since there's no information about this other than
// the empiric observation that this is usually the case.
if (input.attr[0].w == debug_token)
input.attr[0].w = float24::FromFloat32(1.0);
if (g_debug_context)
g_debug_context->OnEvent(DebugContext::Event::VertexLoaded, (void*)&input);
// NOTE: When dumping geometry, we simply assume that the first input attribute
// corresponds to the position for now.
DebugUtils::GeometryDumper::Vertex dumped_vertex = {
input.attr[0][0].ToFloat32(), input.attr[0][1].ToFloat32(), input.attr[0][2].ToFloat32()
};
using namespace std::placeholders;
dumping_primitive_assembler.SubmitVertex(dumped_vertex,
std::bind(&DebugUtils::GeometryDumper::AddTriangle,
&geometry_dumper, _1, _2, _3));
// Send to vertex shader
VertexShader::OutputVertex output = VertexShader::RunShader(input, attribute_config.GetNumTotalAttributes());
if (is_indexed) {
// TODO: Add processed vertex to vertex cache!
}
// Send to triangle clipper
clipper_primitive_assembler.SubmitVertex(output, triangle_handler);
}
geometry_dumper.Dump();
if (g_debug_context)
g_debug_context->OnEvent(DebugContext::Event::FinishedPrimitiveBatch, nullptr);
}
} // namespace
} // namespace

18
src/video_core/vertex_processor.h Normal file
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@ -0,0 +1,18 @@
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "primitive_assembly.h"
namespace Pica {
namespace VertexProcessor {
/// Runs the current PICA vertex batch through the shader interpreter, and sends resulting primitives to triangle_handler
void ProcessBatch(bool is_indexed, PrimitiveAssembler<VertexShader::OutputVertex>::TriangleHandler triangle_handler);
} // namespace
} // namespace