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[Feat] (DiligentEngine): Implement most rendering by DiligentEngine.

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This commit is contained in:
BZLZHH
2025-06-07 19:41:32 +08:00
parent c95077f263
commit f5a14c20a9
29 changed files with 3146 additions and 313 deletions
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MG/MG_GL/Implementations/GL/Buffer/GL_Buffer.cpp
+162 -3
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@@ -5,6 +5,15 @@
#include "GL_Buffer.h"
namespace MG_GL::GL {
Diligent::VALUE_TYPE ConvertGLIndexTypeToDiligent(GLenum type) {
switch (type) {
case GL_UNSIGNED_BYTE: return Diligent::VT_UINT8;
case GL_UNSIGNED_SHORT: return Diligent::VT_UINT16;
case GL_UNSIGNED_INT: return Diligent::VT_UINT32;
default: return Diligent::VT_UNDEFINED;
}
}
void* MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
GLbitfield access) {
MG_Util::Debug::LogD("glMapBufferRange, target: %s, offset: %lld, length: %lld, access: 0x%X",
@@ -31,6 +40,30 @@ namespace MG_GL::GL {
static_cast<long long>(length));
GLenum result = MG_State::SyncBufferMemory(target, offset, length);
if (result == GL_NO_ERROR) {
GLuint buffer = MG_State_T::bufferState->GetCurrentBinding(target);
if (buffer == 0) return;
auto& bufferObj = MG_State_T::bufferState->buffers_[buffer];
if (!bufferObj.isMapped) return;
size_t start = static_cast<size_t>(offset);
size_t end = start + static_cast<size_t>(length);
Diligent::IBuffer* pBuffer = MG_Diligent::g_BufferMap[buffer];
if (pBuffer && bufferObj.data.size() >= end) {
void * data;
MG_Diligent::g_pContext->MapBuffer(pBuffer, Diligent::MAP_WRITE,
Diligent::MAP_FLAG_NONE, data);
if (data) {
void* dst = static_cast<char*>(data) + offset;
const void* src = bufferObj.data.data() + offset;
memcpy(dst, src, length);
MG_Diligent::g_pContext->UnmapBuffer(pBuffer, Diligent::MAP_WRITE);
}
}
return;
}
MG_State::SetError(result);
@@ -50,6 +83,22 @@ namespace MG_GL::GL {
static_cast<long long>(size));
GLenum result = MG_State::CopyBufferRange(readTarget, writeTarget, readOffset, writeOffset, size);
if (result == GL_NO_ERROR) {
GLuint srcBuffer = MG_State_T::bufferState->GetCurrentBinding(readTarget);
GLuint dstBuffer = MG_State_T::bufferState->GetCurrentBinding(writeTarget);
if (srcBuffer == 0 || dstBuffer == 0) return;
Diligent::IBuffer* pSrcBuffer = MG_Diligent::g_BufferMap[srcBuffer];
Diligent::IBuffer* pDstBuffer = MG_Diligent::g_BufferMap[dstBuffer];
if (pSrcBuffer && pDstBuffer) {
MG_Diligent::g_pContext->CopyBuffer(pSrcBuffer, static_cast<Diligent::Uint64>(readOffset),
Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION,
pDstBuffer, static_cast<Diligent::Uint64>(writeOffset),
static_cast<Diligent::Uint64>(size),
Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
}
return;
}
MG_State::SetError(result);
@@ -78,6 +127,22 @@ namespace MG_GL::GL {
MG_Util::Debug::LogE("glUnmapBuffer failed: %s", MG_Util::Debug::GLEnumToString(err));
return GL_FALSE;
}
GLuint buffer = MG_State_T::bufferState->currentBindings_[target];
auto& bufferObj = MG_State_T::bufferState->buffers_[buffer];
Diligent::IBuffer* pBuffer = MG_Diligent::g_BufferMap[buffer];
if (pBuffer) {
void * data;
MG_Diligent::g_pContext->MapBuffer(pBuffer, Diligent::MAP_WRITE,
Diligent::MAP_FLAG_NONE, data);
if (data) {
memcpy(data, bufferObj.data.data(), bufferObj.data.size());
MG_Diligent::g_pContext->UnmapBuffer(pBuffer, Diligent::MAP_WRITE);
}
}
MG_Util::Debug::LogD("glUnmapBuffer succeeded");
return GL_TRUE;
}
@@ -112,8 +177,82 @@ namespace MG_GL::GL {
MG_Util::Debug::LogD("glBufferData, target: %s, size: %zd, data: %p, usage: %s",
MG_Util::Debug::GLEnumToString(target), size, data, MG_Util::Debug::GLEnumToString(usage));
GLenum result = MG_State::CommitBufferStorage(target, size, data, usage);
if (result == GL_NO_ERROR)
if (result == GL_NO_ERROR) {
GLuint buffer = MG_State_T::bufferState->GetCurrentBinding(target);
if (buffer == 0) return;
Diligent::IBuffer*& pBuffer = MG_Diligent::g_BufferMap[buffer];
Diligent::BufferDesc BuffDesc;
BuffDesc.Name = "Buffer";
BuffDesc.Size = static_cast<Diligent::Uint64>(size);
switch (target) {
case GL_ARRAY_BUFFER:
BuffDesc.BindFlags = Diligent::BIND_VERTEX_BUFFER;
break;
case GL_ELEMENT_ARRAY_BUFFER:
BuffDesc.BindFlags = Diligent::BIND_INDEX_BUFFER;
break;
case GL_UNIFORM_BUFFER:
BuffDesc.BindFlags = Diligent::BIND_UNIFORM_BUFFER;
break;
default:
BuffDesc.BindFlags = Diligent::BIND_SHADER_RESOURCE;
break;
}
switch (usage) {
case GL_STATIC_DRAW:
BuffDesc.Usage = Diligent::USAGE_UNIFIED;
BuffDesc.CPUAccessFlags = Diligent::CPU_ACCESS_WRITE;
break;
case GL_DYNAMIC_DRAW:
BuffDesc.Usage = Diligent::USAGE_UNIFIED;
BuffDesc.CPUAccessFlags = Diligent::CPU_ACCESS_WRITE;
break;
case GL_STREAM_DRAW:
BuffDesc.Usage = Diligent::USAGE_UNIFIED;
BuffDesc.CPUAccessFlags = Diligent::CPU_ACCESS_WRITE;
break;
default:
BuffDesc.Usage = Diligent::USAGE_DEFAULT;
break;
}
if (pBuffer == nullptr) {
Diligent::BufferData BuffData;
// Initial data must not be null for immutable buffers
if (BuffDesc.Usage == Diligent::USAGE_IMMUTABLE) {
BuffData.pData = data;
}
else {
BuffData.pData = nullptr;
}
BuffData.DataSize = static_cast<Diligent::Uint64>(size);
MG_Diligent::g_pDevice->CreateBuffer(BuffDesc, &BuffData, &pBuffer);
}
if (data != nullptr) {
if (BuffDesc.Usage == Diligent::USAGE_DEFAULT ||
BuffDesc.Usage == Diligent::USAGE_SPARSE) {
MG_Diligent::g_pContext->UpdateBuffer(pBuffer, 0,
static_cast<Diligent::Uint64>(size), data,
Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
} else if (BuffDesc.Usage == Diligent::USAGE_UNIFIED ||
BuffDesc.Usage == Diligent::USAGE_STAGING ||
BuffDesc.Usage == Diligent::USAGE_DYNAMIC) {
void *pMappedData = nullptr;
MG_Diligent::g_pContext->MapBuffer(pBuffer, Diligent::MAP_WRITE,
Diligent::MAP_FLAG_NONE, pMappedData);
if (pMappedData) {
memcpy(pMappedData, data, size);
MG_Diligent::g_pContext->UnmapBuffer(pBuffer, Diligent::MAP_WRITE);
}
}
}
return;
}
MG_State::SetError(result);
MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
}
@@ -140,8 +279,9 @@ namespace MG_GL::GL {
GLenum result = MG_State::GenBufferNames(n, buffers);
if (result == GL_NO_ERROR) {
MG_Util::Debug::LogD("Generated buffer names:");
for (GLsizei i = 0; i < n; ++i) {
for (GLsizei i = 0; i < n; ++i) {
MG_Util::Debug::LogD(" Buffer[%d] = %u", i, buffers[i]);
MG_Diligent::g_BufferMap[buffers[i]] = nullptr;
}
return;
}
@@ -174,13 +314,32 @@ namespace MG_GL::GL {
MG_State::SetError(result);
MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
}
GLuint buffer = MG_State_T::bufferState->GetCurrentBinding(target);
if (buffer == 0) return;
Diligent::IBuffer* pBuffer = MG_Diligent::g_BufferMap[buffer];
if (pBuffer) {
MG_Diligent::g_pContext->UpdateBuffer(pBuffer, static_cast<Diligent::Uint64>(offset),
static_cast<Diligent::Uint64>(size), data,
Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
}
}
void DeleteBuffers(GLsizei n, const GLuint *buffers) {
MG_Util::Debug::LogD("glDeleteBuffers, n: %d, buffers: %p", n, buffers);
GLenum result = MG_State::DeleteBuffers(n, buffers);
if (result == GL_NO_ERROR)
if (result == GL_NO_ERROR) {
for (GLsizei i = 0; i < n; ++i) {
GLuint buffer = buffers[i];
if (buffer != 0) {
Diligent::IBuffer* pBuffer = MG_Diligent::g_BufferMap[buffer];
if (pBuffer) pBuffer->Release();
MG_Diligent::g_BufferMap.erase(buffer);
}
}
return;
}
MG_State::SetError(result);
MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));