src/gallium/auxiliary/draw/draw_llvm.h - platform/external/mesa3d - Git at Google

 /**************************************************************************
  *
  * 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 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 VMWARE 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.
  *
  **************************************************************************/

 #ifndef DRAW_LLVM_H
 #define DRAW_LLVM_H

 #include "draw/draw_private.h"

 #include "draw/draw_vs.h"
 #include "gallivm/lp_bld_sample.h"

 #include "pipe/p_context.h"
 #include "util/u_simple_list.h"


 struct draw_llvm;
 struct llvm_vertex_shader;

 struct draw_jit_texture
 {
    uint32_t width;
    uint32_t height;
    uint32_t depth;
    uint32_t first_level;
    uint32_t last_level;
    uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
    uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
    const void *data[PIPE_MAX_TEXTURE_LEVELS];
    float min_lod;
    float max_lod;
    float lod_bias;
    float border_color[4];
 };

 enum {
    DRAW_JIT_TEXTURE_WIDTH = 0,
    DRAW_JIT_TEXTURE_HEIGHT,
    DRAW_JIT_TEXTURE_DEPTH,
    DRAW_JIT_TEXTURE_FIRST_LEVEL,
    DRAW_JIT_TEXTURE_LAST_LEVEL,
    DRAW_JIT_TEXTURE_ROW_STRIDE,
    DRAW_JIT_TEXTURE_IMG_STRIDE,
    DRAW_JIT_TEXTURE_DATA,
    DRAW_JIT_TEXTURE_MIN_LOD,
    DRAW_JIT_TEXTURE_MAX_LOD,
    DRAW_JIT_TEXTURE_LOD_BIAS,
    DRAW_JIT_TEXTURE_BORDER_COLOR,
    DRAW_JIT_TEXTURE_NUM_FIELDS  /* number of fields above */
 };

 enum {
    DRAW_JIT_VERTEX_VERTEX_ID = 0,
    DRAW_JIT_VERTEX_CLIP,
    DRAW_JIT_VERTEX_PRE_CLIP_POS,
    DRAW_JIT_VERTEX_DATA
 };

 /**
  * This structure is passed directly to the generated vertex shader.
  *
  * It contains the derived state.
  *
  * Changes here must be reflected in the draw_jit_context_* macros.
  * Changes to the ordering should be avoided.
  *
  * Only use types with a clear size and padding here, in particular prefer the
  * stdint.h types to the basic integer types.
  */
 struct draw_jit_context
 {
    const float *vs_constants;
    const float *gs_constants;
    float (*planes) [DRAW_TOTAL_CLIP_PLANES][4];
    float *viewport;

    struct draw_jit_texture textures[PIPE_MAX_SAMPLERS];
 };


 #define draw_jit_context_vs_constants(_gallivm, _ptr) \
    lp_build_struct_get(_gallivm, _ptr, 0, "vs_constants")

 #define draw_jit_context_gs_constants(_gallivm, _ptr) \
    lp_build_struct_get(_gallivm, _ptr, 1, "gs_constants")

 #define draw_jit_context_planes(_gallivm, _ptr) \
    lp_build_struct_get(_gallivm, _ptr, 2, "planes")

 #define draw_jit_context_viewport(_gallivm, _ptr) \
    lp_build_struct_get(_gallivm, _ptr, 3, "viewport")

 #define DRAW_JIT_CTX_TEXTURES 4

 #define draw_jit_context_textures(_gallivm, _ptr) \
    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_CTX_TEXTURES, "textures")

 #define draw_jit_header_id(_gallivm, _ptr)              \
    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_VERTEX_ID, "id")

 #define draw_jit_header_clip(_gallivm, _ptr) \
    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP, "clip")

 #define draw_jit_header_pre_clip_pos(_gallivm, _ptr) \
    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_PRE_CLIP_POS, "pre_clip_pos")

 #define draw_jit_header_data(_gallivm, _ptr)            \
    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_DATA, "data")


 #define draw_jit_vbuffer_stride(_gallivm, _ptr)         \
    lp_build_struct_get(_gallivm, _ptr, 0, "stride")

 #define draw_jit_vbuffer_offset(_gallivm, _ptr)         \
    lp_build_struct_get(_gallivm, _ptr, 1, "buffer_offset")


 typedef int
 (*draw_jit_vert_func)(struct draw_jit_context *context,
                       struct vertex_header *io,
                       const char *vbuffers[PIPE_MAX_ATTRIBS],
                       unsigned start,
                       unsigned count,
                       unsigned stride,
                       struct pipe_vertex_buffer *vertex_buffers,
                       unsigned instance_id);


 typedef int
 (*draw_jit_vert_func_elts)(struct draw_jit_context *context,
                            struct vertex_header *io,
                            const char *vbuffers[PIPE_MAX_ATTRIBS],
                            const unsigned *fetch_elts,
                            unsigned fetch_count,
                            unsigned stride,
                            struct pipe_vertex_buffer *vertex_buffers,
                            unsigned instance_id);

 struct draw_llvm_variant_key
 {
    unsigned nr_vertex_elements:8;
    unsigned nr_samplers:8;
    unsigned clamp_vertex_color:1;
    unsigned clip_xy:1;
    unsigned clip_z:1;
    unsigned clip_user:1;
    unsigned clip_halfz:1;
    unsigned bypass_viewport:1;
    unsigned need_edgeflags:1;
    unsigned ucp_enable:PIPE_MAX_CLIP_PLANES;
    unsigned pad:9-PIPE_MAX_CLIP_PLANES;

    /* Variable number of vertex elements:
     */
    struct pipe_vertex_element vertex_element[1];

    /* Followed by variable number of samplers:
     */
 /*   struct lp_sampler_static_state sampler; */
 };

 #define DRAW_LLVM_MAX_VARIANT_KEY_SIZE \
    (sizeof(struct draw_llvm_variant_key) +	\
     PIPE_MAX_SAMPLERS * sizeof(struct lp_sampler_static_state) +	\
     (PIPE_MAX_ATTRIBS-1) * sizeof(struct pipe_vertex_element))


 static INLINE size_t
 draw_llvm_variant_key_size(unsigned nr_vertex_elements,
 			   unsigned nr_samplers)
 {
    return (sizeof(struct draw_llvm_variant_key) +
 	   nr_samplers * sizeof(struct lp_sampler_static_state) +
 	   (nr_vertex_elements - 1) * sizeof(struct pipe_vertex_element));
 }


 static INLINE struct lp_sampler_static_state *
 draw_llvm_variant_key_samplers(struct draw_llvm_variant_key *key)
 {
    return (struct lp_sampler_static_state *)
       &key->vertex_element[key->nr_vertex_elements];
 }


 struct draw_llvm_variant_list_item
 {
    struct draw_llvm_variant *base;
    struct draw_llvm_variant_list_item *next, *prev;
 };

 struct draw_llvm_variant
 {
    struct gallivm_state *gallivm;

    /* LLVM JIT builder types */
    LLVMTypeRef context_ptr_type;
    LLVMTypeRef buffer_ptr_type;
    LLVMTypeRef vb_ptr_type;
    LLVMTypeRef vertex_header_ptr_type;

    LLVMValueRef function;
    LLVMValueRef function_elts;
    draw_jit_vert_func jit_func;
    draw_jit_vert_func_elts jit_func_elts;

    struct llvm_vertex_shader *shader;

    struct draw_llvm *llvm;
    struct draw_llvm_variant_list_item list_item_global;
    struct draw_llvm_variant_list_item list_item_local;

    /* key is variable-sized, must be last */
    struct draw_llvm_variant_key key;
 };

 struct llvm_vertex_shader {
    struct draw_vertex_shader base;

    unsigned variant_key_size;
    struct draw_llvm_variant_list_item variants;
    unsigned variants_created;
    unsigned variants_cached;
 };

 struct draw_llvm {
    struct draw_context *draw;

    struct draw_jit_context jit_context;

    struct draw_llvm_variant_list_item vs_variants_list;
    int nr_variants;
 };


 static INLINE struct llvm_vertex_shader *
 llvm_vertex_shader(struct draw_vertex_shader *vs)
 {
    return (struct llvm_vertex_shader *)vs;
 }


 struct draw_llvm *
 draw_llvm_create(struct draw_context *draw);

 void
 draw_llvm_destroy(struct draw_llvm *llvm);

 struct draw_llvm_variant *
 draw_llvm_create_variant(struct draw_llvm *llvm,
 			 unsigned num_vertex_header_attribs,
 			 const struct draw_llvm_variant_key *key);

 void
 draw_llvm_destroy_variant(struct draw_llvm_variant *variant);

 struct draw_llvm_variant_key *
 draw_llvm_make_variant_key(struct draw_llvm *llvm, char *store);

 struct lp_build_sampler_soa *
 draw_llvm_sampler_soa_create(const struct lp_sampler_static_state *static_state,
                              LLVMValueRef context_ptr);

 void
 draw_llvm_set_sampler_state(struct draw_context *draw);

 void
 draw_llvm_set_mapped_texture(struct draw_context *draw,
                              unsigned sampler_idx,
                              uint32_t width, uint32_t height, uint32_t depth,
                              uint32_t first_level, uint32_t last_level,
                              uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
                              uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
                              const void *data[PIPE_MAX_TEXTURE_LEVELS]);

 #endif
	/**************************************************************************
	*
	* 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 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 VMWARE 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.
	*
	**************************************************************************/

	#ifndef DRAW_LLVM_H
	#define DRAW_LLVM_H

	#include "draw/draw_private.h"

	#include "draw/draw_vs.h"
	#include "gallivm/lp_bld_sample.h"

	#include "pipe/p_context.h"
	#include "util/u_simple_list.h"


	struct draw_llvm;
	struct llvm_vertex_shader;

	struct draw_jit_texture
	{
	uint32_t width;
	uint32_t height;
	uint32_t depth;
	uint32_t first_level;
	uint32_t last_level;
	uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
	uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
	const void *data[PIPE_MAX_TEXTURE_LEVELS];
	float min_lod;
	float max_lod;
	float lod_bias;
	float border_color[4];
	};

	enum {
	DRAW_JIT_TEXTURE_WIDTH = 0,
	DRAW_JIT_TEXTURE_HEIGHT,
	DRAW_JIT_TEXTURE_DEPTH,
	DRAW_JIT_TEXTURE_FIRST_LEVEL,
	DRAW_JIT_TEXTURE_LAST_LEVEL,
	DRAW_JIT_TEXTURE_ROW_STRIDE,
	DRAW_JIT_TEXTURE_IMG_STRIDE,
	DRAW_JIT_TEXTURE_DATA,
	DRAW_JIT_TEXTURE_MIN_LOD,
	DRAW_JIT_TEXTURE_MAX_LOD,
	DRAW_JIT_TEXTURE_LOD_BIAS,
	DRAW_JIT_TEXTURE_BORDER_COLOR,
	DRAW_JIT_TEXTURE_NUM_FIELDS /* number of fields above */
	};

	enum {
	DRAW_JIT_VERTEX_VERTEX_ID = 0,
	DRAW_JIT_VERTEX_CLIP,
	DRAW_JIT_VERTEX_PRE_CLIP_POS,
	DRAW_JIT_VERTEX_DATA
	};

	/**
	* This structure is passed directly to the generated vertex shader.
	*
	* It contains the derived state.
	*
	* Changes here must be reflected in the draw_jit_context_* macros.
	* Changes to the ordering should be avoided.
	*
	* Only use types with a clear size and padding here, in particular prefer the
	* stdint.h types to the basic integer types.
	*/
	struct draw_jit_context
	{
	const float *vs_constants;
	const float *gs_constants;
	float (*planes) [DRAW_TOTAL_CLIP_PLANES][4];
	float *viewport;

	struct draw_jit_texture textures[PIPE_MAX_SAMPLERS];
	};


	#define draw_jit_context_vs_constants(_gallivm, _ptr) \
	lp_build_struct_get(_gallivm, _ptr, 0, "vs_constants")

	#define draw_jit_context_gs_constants(_gallivm, _ptr) \
	lp_build_struct_get(_gallivm, _ptr, 1, "gs_constants")

	#define draw_jit_context_planes(_gallivm, _ptr) \
	lp_build_struct_get(_gallivm, _ptr, 2, "planes")

	#define draw_jit_context_viewport(_gallivm, _ptr) \
	lp_build_struct_get(_gallivm, _ptr, 3, "viewport")

	#define DRAW_JIT_CTX_TEXTURES 4

	#define draw_jit_context_textures(_gallivm, _ptr) \
	lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_CTX_TEXTURES, "textures")

	#define draw_jit_header_id(_gallivm, _ptr) \
	lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_VERTEX_ID, "id")

	#define draw_jit_header_clip(_gallivm, _ptr) \
	lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP, "clip")

	#define draw_jit_header_pre_clip_pos(_gallivm, _ptr) \
	lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_PRE_CLIP_POS, "pre_clip_pos")

	#define draw_jit_header_data(_gallivm, _ptr) \
	lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_DATA, "data")


	#define draw_jit_vbuffer_stride(_gallivm, _ptr) \
	lp_build_struct_get(_gallivm, _ptr, 0, "stride")

	#define draw_jit_vbuffer_offset(_gallivm, _ptr) \
	lp_build_struct_get(_gallivm, _ptr, 1, "buffer_offset")


	typedef int
	(draw_jit_vert_func)(struct draw_jit_context context,
	struct vertex_header *io,
	const char *vbuffers[PIPE_MAX_ATTRIBS],
	unsigned start,
	unsigned count,
	unsigned stride,
	struct pipe_vertex_buffer *vertex_buffers,
	unsigned instance_id);


	typedef int
	(draw_jit_vert_func_elts)(struct draw_jit_context context,
	struct vertex_header *io,
	const char *vbuffers[PIPE_MAX_ATTRIBS],
	const unsigned *fetch_elts,
	unsigned fetch_count,
	unsigned stride,
	struct pipe_vertex_buffer *vertex_buffers,
	unsigned instance_id);

	struct draw_llvm_variant_key
	{
	unsigned nr_vertex_elements:8;
	unsigned nr_samplers:8;
	unsigned clamp_vertex_color:1;
	unsigned clip_xy:1;
	unsigned clip_z:1;
	unsigned clip_user:1;
	unsigned clip_halfz:1;
	unsigned bypass_viewport:1;
	unsigned need_edgeflags:1;
	unsigned ucp_enable:PIPE_MAX_CLIP_PLANES;
	unsigned pad:9-PIPE_MAX_CLIP_PLANES;

	/* Variable number of vertex elements:
	*/
	struct pipe_vertex_element vertex_element[1];

	/* Followed by variable number of samplers:
	*/
	/* struct lp_sampler_static_state sampler; */
	};

	#define DRAW_LLVM_MAX_VARIANT_KEY_SIZE \
	(sizeof(struct draw_llvm_variant_key) + \
	PIPE_MAX_SAMPLERS * sizeof(struct lp_sampler_static_state) + \
	(PIPE_MAX_ATTRIBS-1) * sizeof(struct pipe_vertex_element))


	static INLINE size_t
	draw_llvm_variant_key_size(unsigned nr_vertex_elements,
	unsigned nr_samplers)
	{
	return (sizeof(struct draw_llvm_variant_key) +
	nr_samplers * sizeof(struct lp_sampler_static_state) +
	(nr_vertex_elements - 1) * sizeof(struct pipe_vertex_element));
	}


	static INLINE struct lp_sampler_static_state *
	draw_llvm_variant_key_samplers(struct draw_llvm_variant_key *key)
	{
	return (struct lp_sampler_static_state *)
	&key->vertex_element[key->nr_vertex_elements];
	}



	struct draw_llvm_variant_list_item
	{
	struct draw_llvm_variant *base;
	struct draw_llvm_variant_list_item next, prev;
	};

	struct draw_llvm_variant
	{
	struct gallivm_state *gallivm;

	/* LLVM JIT builder types */
	LLVMTypeRef context_ptr_type;
	LLVMTypeRef buffer_ptr_type;
	LLVMTypeRef vb_ptr_type;
	LLVMTypeRef vertex_header_ptr_type;

	LLVMValueRef function;
	LLVMValueRef function_elts;
	draw_jit_vert_func jit_func;
	draw_jit_vert_func_elts jit_func_elts;

	struct llvm_vertex_shader *shader;

	struct draw_llvm *llvm;
	struct draw_llvm_variant_list_item list_item_global;
	struct draw_llvm_variant_list_item list_item_local;

	/* key is variable-sized, must be last */
	struct draw_llvm_variant_key key;
	};

	struct llvm_vertex_shader {
	struct draw_vertex_shader base;

	unsigned variant_key_size;
	struct draw_llvm_variant_list_item variants;
	unsigned variants_created;
	unsigned variants_cached;
	};

	struct draw_llvm {
	struct draw_context *draw;

	struct draw_jit_context jit_context;

	struct draw_llvm_variant_list_item vs_variants_list;
	int nr_variants;
	};


	static INLINE struct llvm_vertex_shader *
	llvm_vertex_shader(struct draw_vertex_shader *vs)
	{
	return (struct llvm_vertex_shader *)vs;
	}


	struct draw_llvm *
	draw_llvm_create(struct draw_context *draw);

	void
	draw_llvm_destroy(struct draw_llvm *llvm);

	struct draw_llvm_variant *
	draw_llvm_create_variant(struct draw_llvm *llvm,
	unsigned num_vertex_header_attribs,
	const struct draw_llvm_variant_key *key);

	void
	draw_llvm_destroy_variant(struct draw_llvm_variant *variant);

	struct draw_llvm_variant_key *
	draw_llvm_make_variant_key(struct draw_llvm llvm, char store);

	struct lp_build_sampler_soa *
	draw_llvm_sampler_soa_create(const struct lp_sampler_static_state *static_state,
	LLVMValueRef context_ptr);

	void
	draw_llvm_set_sampler_state(struct draw_context *draw);

	void
	draw_llvm_set_mapped_texture(struct draw_context *draw,
	unsigned sampler_idx,
	uint32_t width, uint32_t height, uint32_t depth,
	uint32_t first_level, uint32_t last_level,
	uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
	uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
	const void *data[PIPE_MAX_TEXTURE_LEVELS]);

	#endif