stream by map and sync

but not working perfectly, so disabled

Source/Plugins/Plugin_VideoOGL/Src/StreamBuffer.cpp

@@ -23,12 +23,15 @@
 namespace OGL
 {
 
-StreamBuffer::StreamBuffer(u32 type, size_t size)
-: m_buffertype(type), m_size(size), m_iterator(0)
+static const u32 SYNC_POINTS = 16;
+
+StreamBuffer::StreamBuffer(u32 type, size_t size, StreamType uploadType)
+: m_uploadtype(uploadType), m_buffertype(type), m_size(size), m_iterator(0), m_last_iterator(0)
 {
 	glGenBuffers(1, &m_buffer);
 	
-	m_uploadtype = MAP_AND_ORPHAN;
+	if(m_uploadtype == STREAM_DETECT)
+		m_uploadtype = MAP_AND_ORPHAN;
 	
 	Init();
 }
@@ -39,32 +42,51 @@ StreamBuffer::~StreamBuffer()
 	glDeleteBuffers(1, &m_buffer);
 }
 
-void StreamBuffer::Align ( u32 stride )
+void StreamBuffer::Alloc ( size_t size, u32 stride )
 {
-	if(m_iterator) {
-		m_iterator--;
-		m_iterator = m_iterator - (m_iterator % stride) + stride;
+	size_t m_iterator_aligned = m_iterator;
+	if(m_iterator_aligned && stride) {
+		m_iterator_aligned--;
+		m_iterator_aligned = m_iterator_aligned - (m_iterator_aligned % stride) + stride;
 	}
-}
-
-void StreamBuffer::Alloc ( size_t size )
-{
+	
 	switch(m_uploadtype) {
 	case MAP_AND_ORPHAN:
-		if(m_iterator+size >= m_size) {
+		if(m_iterator_aligned+size >= m_size) {
 			glBufferData(m_buffertype, m_size, NULL, GL_STREAM_DRAW);
-			m_iterator = 0;
+			m_iterator_aligned = 0;
+		}
+		break;
+	case MAP_AND_SYNC:
+		for(u32 i=m_iterator*SYNC_POINTS/m_size+1; i<(m_iterator_aligned+size)*SYNC_POINTS/m_size+1 && i < SYNC_POINTS; i++)
+		{
+			glClientWaitSync(fences[i], GL_SYNC_FLUSH_COMMANDS_BIT, GL_TIMEOUT_IGNORED);
+			glDeleteSync(fences[i]);
+		}
+		
+		if(m_iterator_aligned+size >= m_size) {
+			for(u32 i=m_last_iterator*SYNC_POINTS/m_size; i < SYNC_POINTS; i++)
+				fences[i] = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
+			m_iterator_aligned = 0;
+			m_last_iterator = 0;
+			glClientWaitSync(fences[0], GL_SYNC_FLUSH_COMMANDS_BIT, GL_TIMEOUT_IGNORED);
+			glDeleteSync(fences[0]);
 		}
 		break;
 	case BUFFERSUBDATA:
-		m_iterator = 0;
+		m_iterator_aligned = 0;
 		break;
 	}
+	
+	m_iterator = m_iterator_aligned;
 }
 
 size_t StreamBuffer::Upload ( u8* data, size_t size )
 {
 	switch(m_uploadtype) {
+	case MAP_AND_SYNC:
+		for(u32 i=m_last_iterator*SYNC_POINTS/m_size; i<m_iterator*SYNC_POINTS/m_size; i++)
+			fences[i] = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
 	case MAP_AND_ORPHAN:
 		pointer = (u8*)glMapBufferRange(m_buffertype, m_iterator, size, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
 		if(pointer) {
@@ -78,14 +100,19 @@ size_t StreamBuffer::Upload ( u8* data, size_t size )
 		glBufferSubData(m_buffertype, m_iterator, size, data);
 		break;
 	}
-	size_t ret = m_iterator;
+	m_last_iterator = m_iterator;
 	m_iterator += size;
-	return ret;
+	return m_last_iterator;
 }
 
 void StreamBuffer::Init()
 {
 	switch(m_uploadtype) {
+	case MAP_AND_SYNC:
+		fences = new GLsync[SYNC_POINTS];
+		for(u32 i=0; i<SYNC_POINTS; i++)
+			fences[i] = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
+		
 	case MAP_AND_ORPHAN:
 	case BUFFERSUBDATA:
 		glBindBuffer(m_buffertype, m_buffer);
@@ -97,6 +124,12 @@ void StreamBuffer::Init()
 void StreamBuffer::Shutdown()
 {
 	switch(m_uploadtype) {
+	case MAP_AND_SYNC:
+		for(u32 i=0; i<SYNC_POINTS; i++)
+			glDeleteSync(fences[i]);
+		delete [] fences;
+		break;
+		
 	case MAP_AND_ORPHAN:
 	case BUFFERSUBDATA:
 		break;

Source/Plugins/Plugin_VideoOGL/Src/StreamBuffer.h

@@ -21,27 +21,28 @@
 
 #include "VideoCommon.h"
 #include "FramebufferManager.h"
+#include "GLUtil.h"
 
 namespace OGL
 {
 enum StreamType {
+	STREAM_DETECT,
 	MAP_AND_ORPHAN,
+	MAP_AND_SYNC,
 	BUFFERSUBDATA
 };
 
 class StreamBuffer {
 
 public:
-	StreamBuffer(u32 type, size_t size);
+	StreamBuffer(u32 type, size_t size, StreamType uploadType = STREAM_DETECT);
 	~StreamBuffer();
 	
-	void Alloc(size_t size);
+	void Alloc(size_t size, u32 stride = 0);
 	size_t Upload(u8 *data, size_t size);
 	
 	u32 getBuffer() { return m_buffer; }
 	
-	void Align(u32 stride);
-	
 private:
 	void Init();
 	void Shutdown();
@@ -52,6 +53,8 @@ private:
 	size_t m_size;
 	u8 *pointer;
 	size_t m_iterator;
+	size_t m_last_iterator;
+	GLsync *fences;
 };
 
 }

Source/Plugins/Plugin_VideoOGL/Src/VertexManager.cpp

@@ -120,8 +120,7 @@ void VertexManager::PrepareDrawBuffers(u32 stride)
 	u32 point_index_size = IndexGenerator::GetPointindexLen();
 	u32 index_size = (triangle_index_size+line_index_size+point_index_size) * sizeof(u16);
 	
-	s_vertexBuffer->Align(stride);
-	s_vertexBuffer->Alloc(vertex_data_size);
+	s_vertexBuffer->Alloc(vertex_data_size, stride);
 	u32 offset = s_vertexBuffer->Upload(LocalVBuffer, vertex_data_size);
 	s_baseVertex = offset / stride;