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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_image_static_state
{
struct lp_static_texture_state image_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 nr_images: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 samplers[1];
/* followed by variable number of images */
};
#define LP_FS_MAX_VARIANT_KEY_SIZE \
(sizeof(struct lp_fragment_shader_variant_key) + \
PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct lp_sampler_static_state) +\
PIPE_MAX_SHADER_IMAGES * sizeof(struct lp_image_static_state))
static inline size_t
lp_fs_variant_key_size(unsigned nr_samplers, unsigned nr_images)
{
unsigned samplers = nr_samplers > 1 ? (nr_samplers - 1) : 0;
return (sizeof(struct lp_fragment_shader_variant_key) +
samplers * sizeof(struct lp_sampler_static_state) +
nr_images * sizeof(struct lp_image_static_state));
}
static inline struct lp_image_static_state *
lp_fs_variant_key_images(struct lp_fragment_shader_variant_key *key)
{
return (struct lp_image_static_state *)
&key->samplers[key->nr_samplers];
}
/** 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
{
boolean opaque;
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;
/* key is variable-sized, must be last */
struct lp_fragment_shader_variant_key key;
};
/** 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(struct lp_fragment_shader_variant *variant);
#endif /* LP_STATE_FS_H_ */
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