1 files changed, 58 insertions, 0 deletions
diff --git a/tools/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp b/tools/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp
new file mode 100644
index 000000000..84a73ef34
--- /dev/null
+++ b/tools/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp
@@ -0,0 +1,58 @@
+#include "GLSharedGroup.h"
+
+/**** BufferData ****/
+
+BufferData::BufferData() : m_size(0) {};
+BufferData::BufferData(GLsizeiptr size, void * data) : m_size(size) 
+{
+    void * buffer = NULL;
+    if (size>0) buffer = m_fixedBuffer.alloc(size);
+    if (data) memcpy(buffer, data, size);
+}
+
+/***** GLSharedGroup ****/
+
+GLSharedGroup::GLSharedGroup() :
+    m_buffers(android::DefaultKeyedVector<GLuint, BufferData*>(NULL))
+{
+}
+
+GLSharedGroup::~GLSharedGroup()
+{
+    m_buffers.clear();
+}
+
+BufferData * GLSharedGroup::getBufferData(GLuint bufferId)
+{
+    android::AutoMutex _lock(m_lock);
+    return m_buffers.valueFor(bufferId);    
+}
+
+void GLSharedGroup::addBufferData(GLuint bufferId, GLsizeiptr size, void * data)
+{
+    android::AutoMutex _lock(m_lock);
+    m_buffers.add(bufferId, new BufferData(size, data));
+}
+
+void GLSharedGroup::updateBufferData(GLuint bufferId, GLsizeiptr size, void * data)
+{
+    android::AutoMutex _lock(m_lock);
+    m_buffers.replaceValueFor(bufferId, new BufferData(size, data));
+}
+
+GLenum GLSharedGroup::subUpdateBufferData(GLuint bufferId, GLintptr offset, GLsizeiptr size, void * data)
+{
+    android::AutoMutex _lock(m_lock);
+    BufferData * buf = m_buffers.valueFor(bufferId);
+    if ((!buf) || (buf->m_size < offset+size) || (offset < 0) || (size<0)) return GL_INVALID_VALUE; 
+
+    //it's safe to update now
+    memcpy((char*)buf->m_fixedBuffer.ptr() + offset, data, size);
+    return GL_NO_ERROR; 
+}
+
+void GLSharedGroup::deleteBufferData(GLuint bufferId)
+{
+    android::AutoMutex _lock(m_lock);
+    m_buffers.removeItem(bufferId);
+}