al_draw_indexed_buffer - Allegro 5 API
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#include <allegro5/allegro_primitives.h>
int al_draw_indexed_buffer(ALLEGRO_VERTEX_BUFFER* vertex_buffer,
ALLEGRO_BITMAP* texture, ALLEGRO_INDEX_BUFFER* index_buffer,
int start, int end, int type)
Draws a subset of the passed vertex buffer. This function uses an index buffer
to specify which vertices to use. Both buffers must not be locked.
Additionally, to draw onto memory bitmaps or with memory bitmap textures both
buffers must support reading (i.e. they must be created with the
ALLEGRO_PRIM_BUFFER_READWRITE).
Parameters:
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- vertex_buffer - Vertex buffer to draw
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- texture - Texture to use, pass NULL to use only color shaded
primitves
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- index_buffer - Index buffer to use
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- start - Start index of the subset of the vertex buffer to draw
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- end - One past the last index of the subset of the vertex buffer to
draw
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- type - A member of the ALLEGRO_PRIM_TYPE(3) enumeration, specifying what
kind of primitive to draw. Note that ALLEGRO_PRIM_LINE_LOOP and
ALLEGRO_PRIM_POINT_LIST are not supported.
Returns: Number of primitives drawn
ALLEGRO_VERTEX_BUFFER(3), ALLEGRO_INDEX_BUFFER(3), ALLEGRO_PRIM_TYPE(3)