#include <vector>
#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>
namespace Msp {
namespace GL {
enum BufferType
{
- ARRAY_BUFFER = GL_ARRAY_BUFFER_ARB,
- ELEMENT_ARRAY_BUFFER = GL_ELEMENT_ARRAY_BUFFER_ARB,
- PIXEL_PACK_BUFFER = GL_PIXEL_PACK_BUFFER_ARB,
- PIXEL_UNPACK_BUFFER = GL_PIXEL_UNPACK_BUFFER_ARB,
+ ARRAY_BUFFER = GL_ARRAY_BUFFER,
+ ELEMENT_ARRAY_BUFFER = GL_ELEMENT_ARRAY_BUFFER,
+ PIXEL_PACK_BUFFER = GL_PIXEL_PACK_BUFFER,
+ PIXEL_UNPACK_BUFFER = GL_PIXEL_UNPACK_BUFFER,
UNIFORM_BUFFER = GL_UNIFORM_BUFFER
};
enum BufferUsage
{
- STREAM_DRAW = GL_STREAM_DRAW_ARB,
- STREAM_READ = GL_STREAM_READ_ARB,
- STREAM_COPY = GL_STREAM_COPY_ARB,
- STATIC_DRAW = GL_STATIC_DRAW_ARB,
- STATIC_READ = GL_STATIC_READ_ARB,
- STATIC_COPY = GL_STATIC_COPY_ARB,
- DYNAMIC_DRAW = GL_DYNAMIC_DRAW_ARB,
- DYNAMIC_READ = GL_DYNAMIC_READ_ARB,
- DYNAMIC_COPY = GL_DYNAMIC_COPY_ARB
+ 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;
static void require_buffer_type(BufferType);
public:
+ /** Returns the OpenGL ID of the buffer. For internal use only. */
+ unsigned get_id() const { return id; }
+
+ /** Returns the default binding type for the buffer. */
+ BufferType get_type() const { return type; }
+
/** Sets the usage hint of the buffer. It will take effect the next time
the buffer's contents are defined. */
void set_usage(BufferUsage);
BufferRange *create_range(unsigned, unsigned);
+ void *map(BufferAccess);
+ bool unmap();
+
/** Binds the buffer in its default slot. */
void bind() const { bind_to(type); }
/** Unbinds the buffer from its default slot. */
void unbind() const { unbind_from(type); }
- static const Buffer *current(BufferType t) { return binding(t); }
+ static const Buffer *current(BufferType);
static void unbind_from(BufferType);
private:
static const Buffer *&binding(BufferType);
static bool set_current(BufferType, const Buffer *);
- static void restore(const Buffer *, BufferType);
-};
-
-
-/**
-An adaptor for Buffer to make it compatible with Bind.
-*/
-template<BufferType T>
-class BufferAlias
-{
-private:
- const Buffer &buffer;
-
-public:
- BufferAlias(const Buffer &b): buffer(b) { }
-
- void bind() const { buffer.bind_to(T); }
- static const Buffer *current() { return Buffer::current(T); }
- static void unbind() { Buffer::unbind_from(T); }
};
public:
BufferRange(Buffer &, unsigned, unsigned);
+ ~BufferRange();
void data(const void *);