1 files changed, 82 insertions, 0 deletions
diff --git a/src/libs/dxvk-native-1.9.2a/src/dxvk/dxvk_data.h b/src/libs/dxvk-native-1.9.2a/src/dxvk/dxvk_data.h
new file mode 100644
index 00000000..2a5ee924
--- /dev/null
+++ b/src/libs/dxvk-native-1.9.2a/src/dxvk/dxvk_data.h
@@ -0,0 +1,82 @@
+#pragma once
+
+#include "dxvk_include.h"
+
+namespace dxvk {
+  
+  class DxvkDataSlice;
+  
+  /**
+   * \brief Data buffer
+   * 
+   * Provides a fixed-size buffer with a linear memory
+   * allocator for arbitrary data. Can be used to copy
+   * data to or from resources. Note that allocations
+   * will be aligned to a cache line boundary.
+   */
+  class DxvkDataBuffer : public RcObject {
+    friend class DxvkDataSlice;
+  public:
+    
+    DxvkDataBuffer();
+    DxvkDataBuffer(size_t size);
+    ~DxvkDataBuffer();
+    
+    /**
+     * \brief Allocates a slice
+     * 
+     * If the desired slice length is larger than the
+     * number of bytes left in the buffer, this will
+     * fail and the returned slice points to \c nullptr.
+     * \param [in] n Number of bytes to allocate
+     * \returns The slice, or an empty slice on failure
+     */
+    DxvkDataSlice alloc(size_t n);
+    
+  private:
+    
+    char*   m_data   = nullptr;
+    size_t  m_size   = 0;
+    size_t  m_offset = 0;
+    
+  };
+  
+  
+  /**
+   * \brief Data buffer slice
+   * 
+   * A slice of a \ref DxvkDataBuffer which stores
+   * a strong reference to the backing buffer object.
+   */
+  class DxvkDataSlice {
+    
+  public:
+    
+    DxvkDataSlice() { }
+    DxvkDataSlice(
+      const Rc<DxvkDataBuffer>& buffer,
+            size_t              offset,
+            size_t              length)
+    : m_buffer(buffer),
+      m_offset(offset),
+      m_length(length) { }
+    
+    void* ptr() const {
+      return m_buffer != nullptr
+        ? m_buffer->m_data + m_offset
+        : nullptr;
+    }
+    
+    size_t offset() const { return m_offset; }
+    size_t length() const { return m_length; }
+    
+  private:
+    
+    Rc<DxvkDataBuffer> m_buffer;
+    size_t             m_offset = 0;
+    size_t             m_length = 0;
+    
+  };
+  
+  
+}
+\ No newline at end of file