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/**************************************************************************

 *

 * Copyright 2007 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

 * without limitation the rights to use, copy, modify, merge, publish,

 * 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

 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 *

 **************************************************************************/

/* Authors:  Keith Whitwell 

 */

#include "lp_context.h"

#include "lp_state.h"

#include "draw/draw_context.h"

static void

llvmpipe_set_clip_state(struct pipe_context *pipe,

                        const struct pipe_clip_state *clip)

{

   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);

   /* pass the clip state to the draw module */

   draw_set_clip_state(llvmpipe->draw, clip);

}

static void

llvmpipe_set_viewport_states(struct pipe_context *pipe,

                             unsigned start_slot,

                             unsigned num_viewports,

                             const struct pipe_viewport_state *viewports)

{

   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);

   /* pass the viewport info to the draw module */

   draw_set_viewport_states(llvmpipe->draw, start_slot, num_viewports,

                            viewports);

   memcpy(llvmpipe->viewports + start_slot, viewports,

          sizeof(struct pipe_viewport_state) * num_viewports);

   llvmpipe->dirty |= LP_NEW_VIEWPORT;

}

static void

llvmpipe_set_scissor_states(struct pipe_context *pipe,

                            unsigned start_slot,

                            unsigned num_scissors,

                            const struct pipe_scissor_state *scissors)

{

   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);

   draw_flush(llvmpipe->draw);

   debug_assert(start_slot < PIPE_MAX_VIEWPORTS);

   debug_assert((start_slot + num_scissors) <= PIPE_MAX_VIEWPORTS);

   memcpy(llvmpipe->scissors + start_slot, scissors,

          sizeof(struct pipe_scissor_state) * num_scissors);

   llvmpipe->dirty |= LP_NEW_SCISSOR;

}

static void

llvmpipe_set_polygon_stipple(struct pipe_context *pipe,

                             const struct pipe_poly_stipple *stipple)

{

   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);

   draw_flush(llvmpipe->draw);

   llvmpipe->poly_stipple = *stipple; /* struct copy */

   llvmpipe->dirty |= LP_NEW_STIPPLE;

}

void

llvmpipe_init_clip_funcs(struct llvmpipe_context *llvmpipe)

{

   llvmpipe->pipe.set_clip_state = llvmpipe_set_clip_state;

   llvmpipe->pipe.set_polygon_stipple = llvmpipe_set_polygon_stipple;

   llvmpipe->pipe.set_scissor_states = llvmpipe_set_scissor_states;

   llvmpipe->pipe.set_viewport_states = llvmpipe_set_viewport_states;

}