src/gallium/drivers/softpipe/sp_quad_pipe.h

/**************************************************************************
 * 
 * Copyright 2007 VMware, Inc.
 * All Rights Reserved.
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 * The above copyright notice and this permission notice (including the
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/* Authors:  Keith Whitwell <keithw@vmware.com>
 */

#ifndef SP_QUAD_PIPE_H
#define SP_QUAD_PIPE_H


struct softpipe_context;
struct quad_header;


/**
 * Fragment processing is performed on 2x2 blocks of pixels called "quads".
 * Quad processing is performed with a pipeline of stages represented by
 * this type.
 */
struct quad_stage {
   struct softpipe_context *softpipe;

   struct quad_stage *next;

   void (*begin)(struct quad_stage *qs);

   /** the stage action */
   void (*run)(struct quad_stage *qs, struct quad_header *quad[], unsigned nr);

   void (*destroy)(struct quad_stage *qs);
};


struct quad_stage *sp_quad_polygon_stipple_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_earlyz_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_alpha_test_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_occlusion_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_coverage_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_output_stage( struct softpipe_context *softpipe );

void sp_build_quad_pipeline(struct softpipe_context *sp);

#endif /* SP_QUAD_PIPE_H */