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[cogl-vertex-buffer] Allow querying back the number of vertices a buffer represents
This may be convenient e.g. at draw time if you are simply drawing all vertices
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@ -84,6 +84,15 @@ G_BEGIN_DECLS
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CoglHandle
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CoglHandle
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cogl_vertex_buffer_new (guint n_vertices);
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cogl_vertex_buffer_new (guint n_vertices);
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/**
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* cogl_vertex_buffer_get_n_vertices:
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* @handle: A vertex buffer handle
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*
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* This returns the number of vertices that @handle represents
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*/
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guint
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cogl_vertex_buffer_get_n_vertices (CoglHandle handle);
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/**
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/**
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* cogl_vertex_buffer_add:
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* cogl_vertex_buffer_add:
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* @handle: A vertex buffer handle
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* @handle: A vertex buffer handle
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@ -221,6 +221,19 @@ cogl_vertex_buffer_new (guint n_vertices)
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return _cogl_vertex_buffer_handle_new (buffer);
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return _cogl_vertex_buffer_handle_new (buffer);
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}
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}
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guint
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cogl_vertex_buffer_get_n_vertices (CoglHandle handle)
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{
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CoglVertexBuffer *buffer;
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if (!cogl_is_vertex_buffer (handle))
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return 0;
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buffer = _cogl_vertex_buffer_pointer_from_handle (handle);
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return buffer->n_vertices;
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}
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/* There are a number of standard OpenGL attributes that we deal with
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/* There are a number of standard OpenGL attributes that we deal with
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* specially. These attributes are all namespaced with a "gl_" prefix
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* specially. These attributes are all namespaced with a "gl_" prefix
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* so we should catch any typos instead of silently adding a custom
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* so we should catch any typos instead of silently adding a custom
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@ -298,6 +298,7 @@ cogl_color_get_alpha_float
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<FILE>cogl-vertex-buffer</FILE>
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<FILE>cogl-vertex-buffer</FILE>
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<TITLE>Vertex Buffers</TITLE>
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<TITLE>Vertex Buffers</TITLE>
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cogl_vertex_buffer_new
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cogl_vertex_buffer_new
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cogl_vertex_buffer_get_n_vertices
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cogl_vertex_buffer_ref
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cogl_vertex_buffer_ref
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cogl_vertex_buffer_unref
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cogl_vertex_buffer_unref
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cogl_vertex_buffer_add
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cogl_vertex_buffer_add
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