#include <stdexcept>
#include <string>
-#include <vector>
-#include <msp/core/attributes.h>
-#include "gl.h"
-#include <msp/gl/extensions/arb_pixel_buffer_object.h>
-#include <msp/gl/extensions/arb_vertex_buffer_object.h>
-#include <msp/gl/extensions/arb_uniform_buffer_object.h>
-#include <msp/gl/extensions/oes_mapbuffer.h>
+#include "buffer_backend.h"
namespace Msp {
namespace GL {
virtual ~buffer_too_small() throw() { }
};
-enum BufferUsage
-{
- STREAM_DRAW = GL_STREAM_DRAW,
- STREAM_READ = GL_STREAM_READ,
- STREAM_COPY = GL_STREAM_COPY,
- STATIC_DRAW = GL_STATIC_DRAW,
- STATIC_READ = GL_STATIC_READ,
- STATIC_COPY = GL_STATIC_COPY,
- DYNAMIC_DRAW = GL_DYNAMIC_DRAW,
- DYNAMIC_READ = GL_DYNAMIC_READ,
- DYNAMIC_COPY = GL_DYNAMIC_COPY
-};
-
-enum BufferAccess
-{
- READ_ONLY = GL_READ_ONLY,
- WRITE_ONLY = GL_WRITE_ONLY,
- READ_WRITE = GL_READ_WRITE
-};
-
class BufferRange;
/**
buffers can improve rendering performance. The VertexArray, Mesh and
UniformBlock classes contain built-in support for buffers.
*/
-class Buffer
+class Buffer: public BufferBackend
{
- friend class BufferRange;
+ friend BufferBackend;
private:
- unsigned id;
- unsigned size;
- bool allocated;
+ unsigned size = 0;
public:
- Buffer();
- ~Buffer();
-
- /** Returns the OpenGL ID of the buffer. For internal use only. */
- unsigned get_id() const { return id; }
-
/** Defines the storage size of the buffer. Must be called before data can
be uploaded. Storage cannot be changed once set. */
void storage(unsigned);
- /** Allocates storage for the buffer. The contents are initially undefined.
- If storage has already been allocated, does nothing. */
- void allocate();
-
- /** Sets the usage hint of the buffer. It will take effect the next time
- the buffer's contents are defined. */
- DEPRECATED void set_usage(BufferUsage);
-
/** Uploads data into the buffer, completely replacing any previous
contents. Storage must be defined beforehand. The data must have size
matching the defined storage. */
void data(const void *);
- DEPRECATED void data(unsigned, const void *);
-
/** Overwrites part of the buffer data with new data. Storage must be
defined beforehand. */
void sub_data(unsigned, unsigned, const void *);
void require_size(unsigned) const;
- void *map();
- DEPRECATED void *map(BufferAccess) { return map(); }
- bool unmap();
+ using BufferBackend::map;
+ using BufferBackend::unmap;
- void set_debug_name(const std::string &);
+ using BufferBackend::set_debug_name;
};
} // namespace GL