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

 *

 * Copyright 2010 VMware, Inc.

 * 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 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

 * THE COPYRIGHT HOLDERS, AUTHORS 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.

 *

 * The above copyright notice and this permission notice (including the

 * next paragraph) shall be included in all copies or substantial portions

 * of the Software.

 *

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

#ifndef LP_STATE_FS_H_

#define LP_STATE_FS_H_

#include "pipe/p_compiler.h"

#include "pipe/p_state.h"

#include "tgsi/tgsi_scan.h" /* for tgsi_shader_info */

#include "gallivm/lp_bld_sample.h" /* for struct lp_sampler_static_state */

#include "gallivm/lp_bld_tgsi.h" /* for lp_tgsi_info */

#include "lp_bld_interp.h" /* for struct lp_shader_input */

struct tgsi_token;

struct lp_fragment_shader;

/** Indexes into jit_function[] array */

#define RAST_WHOLE 0

#define RAST_EDGE_TEST 1

struct lp_sampler_static_state

{

   /*

    * These attributes are effectively interleaved for more sane key handling.

    * However, there might be lots of null space if the amount of samplers and

    * textures isn't the same.

    */

   struct lp_static_sampler_state sampler_state;

   struct lp_static_texture_state texture_state;

};

struct lp_fragment_shader_variant_key

{

   struct pipe_depth_state depth;

   struct pipe_stencil_state stencil[2];

   struct pipe_blend_state blend;

   struct {

      unsigned enabled:1;

      unsigned func:3;

   } alpha;

   unsigned nr_cbufs:8;

   unsigned nr_samplers:8;      /* actually derivable from just the shader */

   unsigned nr_sampler_views:8; /* actually derivable from just the shader */

   unsigned flatshade:1;

   unsigned occlusion_count:1;

   unsigned resource_1d:1;

   unsigned depth_clamp:1;

   enum pipe_format zsbuf_format;

   enum pipe_format cbuf_format[PIPE_MAX_COLOR_BUFS];

   struct lp_sampler_static_state state[PIPE_MAX_SHADER_SAMPLER_VIEWS];

};

/** doubly-linked list item */

struct lp_fs_variant_list_item

{

   struct lp_fragment_shader_variant *base;

   struct lp_fs_variant_list_item *next, *prev;

};

struct lp_fragment_shader_variant

{

   struct lp_fragment_shader_variant_key key;

   boolean opaque;

   uint8_t ps_inv_multiplier;

   struct gallivm_state *gallivm;

   LLVMTypeRef jit_context_ptr_type;

   LLVMTypeRef jit_thread_data_ptr_type;

   LLVMTypeRef jit_linear_context_ptr_type;

   LLVMValueRef function[2];

   lp_jit_frag_func jit_function[2];

   /* Total number of LLVM instructions generated */

   unsigned nr_instrs;

   struct lp_fs_variant_list_item list_item_global, list_item_local;

   struct lp_fragment_shader *shader;

   /* For debugging/profiling purposes */

   unsigned no;

};

/** Subclass of pipe_shader_state */

struct lp_fragment_shader

{

   struct pipe_shader_state base;

   struct lp_tgsi_info info;

   struct lp_fs_variant_list_item variants;

   struct draw_fragment_shader *draw_data;

   /* For debugging/profiling purposes */

   unsigned variant_key_size;

   unsigned no;

   unsigned variants_created;

   unsigned variants_cached;

   /** Fragment shader input interpolation info */

   struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];

};

void

lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);

void

llvmpipe_remove_shader_variant(struct llvmpipe_context *lp,

                               struct lp_fragment_shader_variant *variant);

boolean

llvmpipe_rasterization_disabled(struct llvmpipe_context *lp);

#endif /* LP_STATE_FS_H_ */