cso_context.h

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/**************************************************************************
 *
 * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
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 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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#ifndef CSO_CONTEXT_H
#define CSO_CONTEXT_H

#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "pipe/p_error.h"


#ifdef  __cplusplus
extern "C" {
#endif

struct cso_context;

struct cso_context *cso_create_context( struct pipe_context *pipe );

void cso_release_all( struct cso_context *ctx );

void cso_destroy_context( struct cso_context *cso );



enum pipe_error cso_set_blend( struct cso_context *cso,
                               const struct pipe_blend_state *blend );
void cso_save_blend(struct cso_context *cso);
void cso_restore_blend(struct cso_context *cso);



enum pipe_error cso_set_depth_stencil_alpha( struct cso_context *cso,
                                             const struct pipe_depth_stencil_alpha_state *dsa );
void cso_save_depth_stencil_alpha(struct cso_context *cso);
void cso_restore_depth_stencil_alpha(struct cso_context *cso);



enum pipe_error cso_set_rasterizer( struct cso_context *cso,
                                    const struct pipe_rasterizer_state *rasterizer );
void cso_save_rasterizer(struct cso_context *cso);
void cso_restore_rasterizer(struct cso_context *cso);



enum pipe_error cso_set_samplers( struct cso_context *cso,
                                  unsigned count,
                                  const struct pipe_sampler_state **states );
void cso_save_samplers(struct cso_context *cso);
void cso_restore_samplers(struct cso_context *cso);

/* Alternate interface to support state trackers that like to modify
 * samplers one at a time:
 */
enum pipe_error cso_single_sampler( struct cso_context *cso,
                                    unsigned nr,
                                    const struct pipe_sampler_state *states );

void cso_single_sampler_done( struct cso_context *cso );



enum pipe_error cso_set_sampler_textures( struct cso_context *cso,
                                          uint count,
                                          struct pipe_texture **textures );
void cso_save_sampler_textures( struct cso_context *cso );
void cso_restore_sampler_textures( struct cso_context *cso );



/* These aren't really sensible -- most of the time the api provides
 * object semantics for shaders anyway, and the cases where it doesn't
 * (eg mesa's internall-generated texenv programs), it will be up to
 * the state tracker to implement their own specialized caching.
 */
enum pipe_error cso_set_fragment_shader_handle(struct cso_context *ctx,
                                               void *handle );
void cso_delete_fragment_shader(struct cso_context *ctx, void *handle );
/*
enum pipe_error cso_set_fragment_shader( struct cso_context *cso,
                                         const struct pipe_shader_state *shader );
*/
void cso_save_fragment_shader(struct cso_context *cso);
void cso_restore_fragment_shader(struct cso_context *cso);


enum pipe_error cso_set_vertex_shader_handle(struct cso_context *ctx,
                                             void *handle );
void cso_delete_vertex_shader(struct cso_context *ctx, void *handle );
/*
enum pipe_error cso_set_vertex_shader( struct cso_context *cso,
                                       const struct pipe_shader_state *shader );
*/
void cso_save_vertex_shader(struct cso_context *cso);
void cso_restore_vertex_shader(struct cso_context *cso);



enum pipe_error cso_set_framebuffer(struct cso_context *cso,
                                    const struct pipe_framebuffer_state *fb);
void cso_save_framebuffer(struct cso_context *cso);
void cso_restore_framebuffer(struct cso_context *cso);


enum pipe_error cso_set_viewport(struct cso_context *cso,
                                 const struct pipe_viewport_state *vp);
void cso_save_viewport(struct cso_context *cso);
void cso_restore_viewport(struct cso_context *cso);


enum pipe_error cso_set_blend_color(struct cso_context *cso,
                                    const struct pipe_blend_color *bc);


#ifdef  __cplusplus
}
#endif

#endif

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