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// Copyright 2014 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoCommon/VertexLoaderBase.h"
#include <array>
#include <cinttypes>
#include <cstring>
#include <memory>
#include <string>
#include <vector>
#include <fmt/format.h>
#include "Common/CommonTypes.h"
#include "Common/Logging/Log.h"
#include "Common/MsgHandler.h"
#include "VideoCommon/DataReader.h"
#include "VideoCommon/VertexLoader.h"
#ifdef _M_X86_64
#include "VideoCommon/VertexLoaderX64.h"
#elif defined(_M_ARM_64)
#include "VideoCommon/VertexLoaderARM64.h"
#endif
// a hacky implementation to compare two vertex loaders
class VertexLoaderTester : public VertexLoaderBase
{
public:
VertexLoaderTester(std::unique_ptr<VertexLoaderBase> a_, std::unique_ptr<VertexLoaderBase> b_,
const TVtxDesc& vtx_desc, const VAT& vtx_attr)
: VertexLoaderBase(vtx_desc, vtx_attr), a(std::move(a_)), b(std::move(b_))
{
m_initialized = a && b && a->IsInitialized() && b->IsInitialized();
if (m_initialized)
{
m_initialized = a->m_VertexSize == b->m_VertexSize &&
a->m_native_components == b->m_native_components &&
a->m_native_vtx_decl.stride == b->m_native_vtx_decl.stride;
if (m_initialized)
{
m_VertexSize = a->m_VertexSize;
m_native_components = a->m_native_components;
memcpy(&m_native_vtx_decl, &a->m_native_vtx_decl, sizeof(PortableVertexDeclaration));
}
else
{
ERROR_LOG_FMT(VIDEO, "Can't compare vertex loaders that expect different vertex formats!");
ERROR_LOG_FMT(VIDEO, "a: m_VertexSize {}, m_native_components {:#010x}, stride {}",
a->m_VertexSize, a->m_native_components, a->m_native_vtx_decl.stride);
ERROR_LOG_FMT(VIDEO, "b: m_VertexSize {}, m_native_components {:#010x}, stride {}",
b->m_VertexSize, b->m_native_components, b->m_native_vtx_decl.stride);
}
}
}
~VertexLoaderTester() override {}
int RunVertices(DataReader src, DataReader dst, int count) override
{
buffer_a.resize(count * a->m_native_vtx_decl.stride + 4);
buffer_b.resize(count * b->m_native_vtx_decl.stride + 4);
int count_a =
a->RunVertices(src, DataReader(buffer_a.data(), buffer_a.data() + buffer_a.size()), count);
int count_b =
b->RunVertices(src, DataReader(buffer_b.data(), buffer_b.data() + buffer_b.size()), count);
if (count_a != count_b)
{
ERROR_LOG_FMT(
VIDEO,
"The two vertex loaders have loaded a different amount of vertices (a: {}, b: {}).",
count_a, count_b);
}
if (memcmp(buffer_a.data(), buffer_b.data(),
std::min(count_a, count_b) * m_native_vtx_decl.stride))
{
ERROR_LOG_FMT(VIDEO,
"The two vertex loaders have loaded different data "
"(guru meditation {:#010x}, {:#010x}, {:#010x}, {:#010x}, {:#010x}).",
m_VtxDesc.low.Hex, m_VtxDesc.high.Hex, m_VtxAttr.g0.Hex, m_VtxAttr.g1.Hex,
m_VtxAttr.g2.Hex);
}
memcpy(dst.GetPointer(), buffer_a.data(), count_a * m_native_vtx_decl.stride);
m_numLoadedVertices += count;
return count_a;
}
bool IsInitialized() override { return m_initialized; }
private:
bool m_initialized;
std::unique_ptr<VertexLoaderBase> a;
std::unique_ptr<VertexLoaderBase> b;
std::vector<u8> buffer_a;
std::vector<u8> buffer_b;
};
std::unique_ptr<VertexLoaderBase> VertexLoaderBase::CreateVertexLoader(const TVtxDesc& vtx_desc,
const VAT& vtx_attr)
{
std::unique_ptr<VertexLoaderBase> loader;
//#define COMPARE_VERTEXLOADERS
#if defined(COMPARE_VERTEXLOADERS) && defined(_M_X86_64)
// first try: Any new VertexLoader vs the old one
loader = std::make_unique<VertexLoaderTester>(
std::make_unique<VertexLoader>(vtx_desc, vtx_attr), // the software one
std::make_unique<VertexLoaderX64>(vtx_desc, vtx_attr), // the new one to compare
vtx_desc, vtx_attr);
if (loader->IsInitialized())
return loader;
#elif defined(_M_X86_64)
loader = std::make_unique<VertexLoaderX64>(vtx_desc, vtx_attr);
if (loader->IsInitialized())
return loader;
#elif defined(_M_ARM_64)
loader = std::make_unique<VertexLoaderARM64>(vtx_desc, vtx_attr);
if (loader->IsInitialized())
return loader;
#endif
// last try: The old VertexLoader
loader = std::make_unique<VertexLoader>(vtx_desc, vtx_attr);
if (loader->IsInitialized())
return loader;
PanicAlertFmt("No Vertex Loader found.");
return nullptr;
}
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