mirror of
https://github.com/brl/mutter.git
synced 2024-12-23 19:42:05 +00:00
primitive: Adds convenience constructors
This adds convenience primitive constructors named like: cogl_primitive_new_p3 or cogl_primitive_new_p3c4 or cogl_primitive_new_p3t2c4 where the letters correspond to the interleved vertex attributes layouts such as CoglP3Vertex which is a struct with 3 float x,y,z members for the [p]osition, or CoglP3T2C4Vertex which is a struct with 3 float x,y,z members for the [p]osition, 2 float s,t members for the [t]exture coordinates and 4 unsigned byte r,g,b,a members for the [c]olor. The hope is that people will find these convenient enough to replace cogl_polygon.
This commit is contained in:
Robert Bragg
parent
9498d505dd
commit
a03a5814e7
@ -96,6 +96,252 @@ cogl_primitive_new (CoglVerticesMode mode,
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attributes);
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}
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CoglPrimitive *
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cogl_primitive_new_p3 (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3Vertex *data)
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{
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CoglVertexArray *array =
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cogl_vertex_array_new (n_vertices * sizeof (CoglP3Vertex));
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CoglBuffer *buffer = COGL_BUFFER (array);
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CoglVertexAttribute *attributes[2];
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CoglPrimitive *prim;
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cogl_buffer_set_data (buffer, 0, (guint8 *)data,
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n_vertices * sizeof (CoglP3Vertex));
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attributes[0] =
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cogl_vertex_attribute_new (array,
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"cogl_position_in",
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sizeof (CoglP3Vertex),
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offsetof (CoglP3Vertex, x),
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3,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] = NULL;
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prim = cogl_primitive_new_with_attributes_array (mode, n_vertices,
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attributes);
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cogl_object_unref (prim);
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return prim;
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}
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CoglPrimitive *
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cogl_primitive_new_p2c4 (CoglVerticesMode mode,
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int n_vertices,
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const CoglP2C4Vertex *data)
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{
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CoglVertexArray *array =
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cogl_vertex_array_new (n_vertices * sizeof (CoglP2C4Vertex));
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CoglBuffer *buffer = COGL_BUFFER (array);
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CoglVertexAttribute *attributes[3];
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CoglPrimitive *prim;
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cogl_buffer_set_data (buffer, 0, (guint8 *)data,
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n_vertices * sizeof (CoglP2C4Vertex));
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attributes[0] =
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cogl_vertex_attribute_new (array,
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"cogl_position_in",
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sizeof (CoglP2C4Vertex),
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offsetof (CoglP2C4Vertex, x),
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2,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] =
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cogl_vertex_attribute_new (array,
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"cogl_color_in",
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sizeof (CoglP2C4Vertex),
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offsetof (CoglP2C4Vertex, r),
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4,
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COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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attributes[2] = NULL;
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prim = cogl_primitive_new_with_attributes_array (mode, n_vertices,
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attributes);
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cogl_object_unref (prim);
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return prim;
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}
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CoglPrimitive *
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cogl_primitive_new_p3c4 (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3C4Vertex *data)
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{
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CoglVertexArray *array =
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cogl_vertex_array_new (n_vertices * sizeof (CoglP3C4Vertex));
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CoglBuffer *buffer = COGL_BUFFER (array);
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CoglVertexAttribute *attributes[3];
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CoglPrimitive *prim;
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cogl_buffer_set_data (buffer, 0, (guint8 *)data,
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n_vertices * sizeof (CoglP3C4Vertex));
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attributes[0] =
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cogl_vertex_attribute_new (array,
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"cogl_position_in",
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sizeof (CoglP3C4Vertex),
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offsetof (CoglP3C4Vertex, x),
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3,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] =
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cogl_vertex_attribute_new (array,
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"cogl_color_in",
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sizeof (CoglP3C4Vertex),
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offsetof (CoglP3C4Vertex, r),
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4,
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COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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attributes[2] = NULL;
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prim = cogl_primitive_new_with_attributes_array (mode, n_vertices,
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attributes);
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cogl_object_unref (prim);
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return prim;
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}
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CoglPrimitive *
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cogl_primitive_new_p2t2 (CoglVerticesMode mode,
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int n_vertices,
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const CoglP2T2Vertex *data)
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{
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CoglVertexArray *array =
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cogl_vertex_array_new (n_vertices * sizeof (CoglP2T2Vertex));
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CoglBuffer *buffer = COGL_BUFFER (array);
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CoglVertexAttribute *attributes[3];
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CoglPrimitive *prim;
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cogl_buffer_set_data (buffer, 0, (guint8 *)data,
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n_vertices * sizeof (CoglP2T2Vertex));
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attributes[0] =
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cogl_vertex_attribute_new (array,
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"cogl_position_in",
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sizeof (CoglP2T2Vertex),
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offsetof (CoglP2T2Vertex, x),
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2,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] =
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cogl_vertex_attribute_new (array,
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"cogl_tex_coord0_in",
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sizeof (CoglP2T2Vertex),
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offsetof (CoglP2T2Vertex, x),
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2,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[2] = NULL;
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prim = cogl_primitive_new_with_attributes_array (mode, n_vertices,
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attributes);
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cogl_object_unref (array);
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return prim;
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}
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CoglPrimitive *
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cogl_primitive_new_p3t2 (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3T2Vertex *data)
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{
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CoglVertexArray *array =
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cogl_vertex_array_new (n_vertices * sizeof (CoglP3T2Vertex));
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CoglBuffer *buffer = COGL_BUFFER (array);
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CoglVertexAttribute *attributes[3];
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CoglPrimitive *prim;
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cogl_buffer_set_data (buffer, 0, (guint8 *)data,
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n_vertices * sizeof (CoglP3T2Vertex));
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attributes[0] =
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cogl_vertex_attribute_new (array,
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"cogl_position_in",
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sizeof (CoglP3T2Vertex),
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offsetof (CoglP3T2Vertex, x),
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3,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] =
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cogl_vertex_attribute_new (array,
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"cogl_tex_coord0_in",
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sizeof (CoglP3T2Vertex),
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offsetof (CoglP3T2Vertex, x),
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2,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[2] = NULL;
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prim = cogl_primitive_new_with_attributes_array (mode, n_vertices,
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attributes);
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cogl_object_unref (prim);
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return prim;
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}
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CoglPrimitive *
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cogl_primitive_new_p2t2c4 (CoglVerticesMode mode,
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int n_vertices,
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const CoglP2T2C4Vertex *data)
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{
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CoglVertexArray *array =
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cogl_vertex_array_new (n_vertices * sizeof (CoglP2T2C4Vertex));
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CoglBuffer *buffer = COGL_BUFFER (array);
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CoglVertexAttribute *attributes[4];
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CoglPrimitive *prim;
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cogl_buffer_set_data (buffer, 0, (guint8 *)data,
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n_vertices * sizeof (CoglP2T2C4Vertex));
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attributes[0] =
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cogl_vertex_attribute_new (array,
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"cogl_position_in",
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sizeof (CoglP2T2C4Vertex),
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offsetof (CoglP2T2C4Vertex, x),
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2,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] =
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cogl_vertex_attribute_new (array,
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"cogl_tex_coord0_in",
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sizeof (CoglP2T2C4Vertex),
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offsetof (CoglP2T2C4Vertex, x),
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2,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[2] =
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cogl_vertex_attribute_new (array,
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"cogl_color_in",
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sizeof (CoglP2T2C4Vertex),
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offsetof (CoglP2T2C4Vertex, r),
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4,
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COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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attributes[3] = NULL;
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prim = cogl_primitive_new_with_attributes_array (mode, n_vertices,
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attributes);
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cogl_object_unref (prim);
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return prim;
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}
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CoglPrimitive *
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cogl_primitive_new_p3t2c4 (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3T2C4Vertex *data)
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{
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CoglVertexArray *array =
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cogl_vertex_array_new (n_vertices * sizeof (CoglP3T2C4Vertex));
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CoglBuffer *buffer = COGL_BUFFER (array);
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CoglVertexAttribute *attributes[4];
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CoglPrimitive *prim;
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cogl_buffer_set_data (buffer, 0, (guint8 *)data,
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n_vertices * sizeof (CoglP3T2C4Vertex));
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attributes[0] =
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cogl_vertex_attribute_new (array,
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"cogl_position_in",
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sizeof (CoglP3T2C4Vertex),
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offsetof (CoglP3T2C4Vertex, x),
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3,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] =
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cogl_vertex_attribute_new (array,
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"cogl_tex_coord0_in",
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sizeof (CoglP3T2C4Vertex),
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offsetof (CoglP3T2C4Vertex, x),
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2,
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COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
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attributes[2] =
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cogl_vertex_attribute_new (array,
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"cogl_color_in",
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sizeof (CoglP3T2C4Vertex),
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offsetof (CoglP3T2C4Vertex, r),
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4,
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COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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attributes[3] = NULL;
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prim = cogl_primitive_new_with_attributes_array (mode, n_vertices,
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attributes);
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cogl_object_unref (prim);
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return prim;
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}
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static void
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free_attributes_list (CoglPrimitive *primitive)
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{
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@ -47,7 +47,7 @@ G_BEGIN_DECLS
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typedef struct _CoglPrimitive CoglPrimitive;
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/**
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* CoglV2Vertex:
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* CoglP2Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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*
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@ -60,10 +60,10 @@ typedef struct _CoglPrimitive CoglPrimitive;
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typedef struct
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{
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float x, y;
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} CoglV2Vertex;
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} CoglP2Vertex;
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/**
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* CoglV3Vertex:
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* CoglP3Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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* @z: The z component of a position attribute
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@ -77,10 +77,10 @@ typedef struct
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typedef struct
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{
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float x, y, z;
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} CoglV3Vertex;
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} CoglP3Vertex;
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/**
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* CoglV2C4Vertex:
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* CoglP2C4Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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* @r: The red component of a color attribute
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@ -98,10 +98,10 @@ typedef struct
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{
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float x, y;
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guint8 r, g, b, a;
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} CoglV2C4Vertex;
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} CoglP2C4Vertex;
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/**
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* CoglV3C4Vertex:
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* CoglP3C4Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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* @z: The z component of a position attribute
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@ -120,10 +120,10 @@ typedef struct
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{
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float x, y, z;
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guint8 r, g, b, a;
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} CoglV3C4Vertex;
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} CoglP3C4Vertex;
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/**
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* CoglV2T2Vertex:
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* CoglP2T2Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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* @s: The s component of a texture coordinate attribute
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@ -139,10 +139,10 @@ typedef struct
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{
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float x, y;
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float s, t;
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} CoglV2T2Vertex;
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} CoglP2T2Vertex;
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/**
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* CoglV3T2Vertex:
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* CoglP3T2Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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* @z: The z component of a position attribute
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@ -159,11 +159,11 @@ typedef struct
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{
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float x, y, z;
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float s, t;
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} CoglV3T2Vertex;
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} CoglP3T2Vertex;
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/**
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* CoglV2T2C4Vertex:
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* CoglP2T2C4Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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* @s: The s component of a texture coordinate attribute
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@ -184,10 +184,10 @@ typedef struct
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float x, y;
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float s, t;
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guint8 r, g, b, a;
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} CoglV2T2C4Vertex;
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} CoglP2T2C4Vertex;
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/**
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* CoglV3T2C4Vertex:
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* CoglP3T2C4Vertex:
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* @x: The x component of a position attribute
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* @y: The y component of a position attribute
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* @z: The z component of a position attribute
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@ -209,7 +209,7 @@ typedef struct
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float x, y, z;
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float s, t;
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guint8 r, g, b, a;
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} CoglV3T2C4Vertex;
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} CoglP3T2C4Vertex;
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/**
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* cogl_primitive_new:
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@ -237,6 +237,40 @@ cogl_primitive_new_with_attributes_array (CoglVerticesMode mode,
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int n_vertices,
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CoglVertexAttribute **attributes);
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CoglPrimitive *
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cogl_primitive_new_with_v3_attributes (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3Vertex *data);
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CoglPrimitive *
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cogl_primitive_new_with_v2c4_attributes (CoglVerticesMode mode,
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int n_vertices,
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const CoglP2C4Vertex *data);
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CoglPrimitive *
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cogl_primitive_new_with_v3c4_attributes (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3C4Vertex *data);
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CoglPrimitive *
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cogl_primitive_new_with_v2t2_attributes (CoglVerticesMode mode,
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int n_vertices,
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const CoglP2T2Vertex *data);
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CoglPrimitive *
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cogl_primitive_new_with_v3t2_attributes (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3T2Vertex *data);
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CoglPrimitive *
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cogl_primitive_new_with_v2t2c4_attributes (CoglVerticesMode mode,
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int n_vertices,
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const CoglP2T2C4Vertex *data);
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CoglPrimitive *
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cogl_primitive_new_with_v3t2c4_attributes (CoglVerticesMode mode,
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int n_vertices,
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const CoglP3T2C4Vertex *data);
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int
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cogl_primitive_get_first_vertex (CoglPrimitive *primitive);
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