Add support for padding in vertex formats

[libs/gl.git] / source / core / vertexformat.h

diff --git a/source/core/vertexformat.h b/source/core/vertexformat.h
index d5835013b53a925584bbfa8055a663f1f1382ed4..fba206e4386e978674a2d5e6bbc7cc33c9d2119e 100644 (file)
--- a/source/core/vertexformat.h
+++ b/source/core/vertexformat.h
@@ -61,6 +61,10 @@ enum VertexAttribute: std::uint16_t
        GENERIC_I2 = 0x28CA,
        GENERIC_I3 = 0x28CB,
        GENERIC_I4 = 0x28CC,
+       PADDING1 = 0xF811,
+       PADDING2 = 0xF812,
+       PADDING3 = 0xF813,
+       PADDING4 = 0xF814,
        RAW_ATTRIB1 = 0xFDC1,
        RAW_ATTRIB2 = 0xFDC2,
        RAW_ATTRIB3 = 0xFDC3,
@@ -76,9 +80,10 @@ Describes the attributes of a vertex.  Up to 15 attributes are allowed.
 */
 class VertexFormat
 {
-private:
-       enum { MAX_ATTRIBUTES = 15 };
+public:
+       static constexpr unsigned MAX_ATTRIBUTES = 15;
 
+private:
        std::uint8_t count = 0;
        VertexAttribute attributes[MAX_ATTRIBUTES];
 
@@ -133,6 +138,9 @@ inline unsigned get_attribute_size(VertexAttribute a)
 inline bool is_integer_attribute(VertexAttribute a)
 { return a&8; }
 
+inline bool is_padding(VertexAttribute a)
+{ return get_attribute_semantic(a)==get_attribute_semantic(PADDING1); }
+
 void operator>>(const LexicalConverter &, VertexAttribute &);
 
 } // namespace GL