src/gallium/auxiliary/draw/draw_llvm.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 VMware, Inc.
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   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  25  *
  26  **************************************************************************/
  27
  28 #ifndef DRAW_LLVM_H
  29 #define DRAW_LLVM_H
  30
  31 #include "draw/draw_private.h"
  32
  33 #include "draw/draw_vs.h"
  34 #include "gallivm/lp_bld_sample.h"
  35
  36 #include "pipe/p_context.h"
  37 #include "util/u_simple_list.h"
  38
  39
  40 struct draw_llvm;
  41 struct llvm_vertex_shader;
  42
  43 struct draw_jit_texture
  44 {
  45    uint32_t width;
  46    uint32_t height;
  47    uint32_t depth;
  48    uint32_t first_level;
  49    uint32_t last_level;
  50    uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
  51    uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
  52    const void *data[PIPE_MAX_TEXTURE_LEVELS];
  53    float min_lod;
  54    float max_lod;
  55    float lod_bias;
  56    float border_color[4];
  57 };
  58
  59 enum {
  60    DRAW_JIT_TEXTURE_WIDTH = 0,
  61    DRAW_JIT_TEXTURE_HEIGHT,
  62    DRAW_JIT_TEXTURE_DEPTH,
  63    DRAW_JIT_TEXTURE_FIRST_LEVEL,
  64    DRAW_JIT_TEXTURE_LAST_LEVEL,
  65    DRAW_JIT_TEXTURE_ROW_STRIDE,
  66    DRAW_JIT_TEXTURE_IMG_STRIDE,
  67    DRAW_JIT_TEXTURE_DATA,
  68    DRAW_JIT_TEXTURE_MIN_LOD,
  69    DRAW_JIT_TEXTURE_MAX_LOD,
  70    DRAW_JIT_TEXTURE_LOD_BIAS,
  71    DRAW_JIT_TEXTURE_BORDER_COLOR,
  72    DRAW_JIT_TEXTURE_NUM_FIELDS  /* number of fields above */
  73 };
  74
  75 enum {
  76    DRAW_JIT_VERTEX_VERTEX_ID = 0,
  77    DRAW_JIT_VERTEX_CLIP,
  78    DRAW_JIT_VERTEX_PRE_CLIP_POS,
  79    DRAW_JIT_VERTEX_DATA
  80 };
  81
  82 /**
  83  * This structure is passed directly to the generated vertex shader.
  84  *
  85  * It contains the derived state.
  86  *
  87  * Changes here must be reflected in the draw_jit_context_* macros.
  88  * Changes to the ordering should be avoided.
  89  *
  90  * Only use types with a clear size and padding here, in particular prefer the
  91  * stdint.h types to the basic integer types.
  92  */
  93 struct draw_jit_context
  94 {
  95    const float *vs_constants;
  96    const float *gs_constants;
  97    float (*planes) [DRAW_TOTAL_CLIP_PLANES][4];
  98    float *viewport;
  99
 100    struct draw_jit_texture textures[PIPE_MAX_SAMPLERS];
 101 };
 102
 103
 104 #define draw_jit_context_vs_constants(_gallivm, _ptr) \
 105    lp_build_struct_get(_gallivm, _ptr, 0, "vs_constants")
 106
 107 #define draw_jit_context_gs_constants(_gallivm, _ptr) \
 108    lp_build_struct_get(_gallivm, _ptr, 1, "gs_constants")
 109
 110 #define draw_jit_context_planes(_gallivm, _ptr) \
 111    lp_build_struct_get(_gallivm, _ptr, 2, "planes")
 112
 113 #define draw_jit_context_viewport(_gallivm, _ptr) \
 114    lp_build_struct_get(_gallivm, _ptr, 3, "viewport")
 115
 116 #define DRAW_JIT_CTX_TEXTURES 4
 117
 118 #define draw_jit_context_textures(_gallivm, _ptr) \
 119    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_CTX_TEXTURES, "textures")
 120
 121 #define draw_jit_header_id(_gallivm, _ptr)              \
 122    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_VERTEX_ID, "id")
 123
 124 #define draw_jit_header_clip(_gallivm, _ptr) \
 125    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP, "clip")
 126
 127 #define draw_jit_header_pre_clip_pos(_gallivm, _ptr) \
 128    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_PRE_CLIP_POS, "pre_clip_pos")
 129
 130 #define draw_jit_header_data(_gallivm, _ptr)            \
 131    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_DATA, "data")
 132
 133
 134 #define draw_jit_vbuffer_stride(_gallivm, _ptr)         \
 135    lp_build_struct_get(_gallivm, _ptr, 0, "stride")
 136
 137 #define draw_jit_vbuffer_offset(_gallivm, _ptr)         \
 138    lp_build_struct_get(_gallivm, _ptr, 1, "buffer_offset")
 139
 140
 141 typedef int
 142 (*draw_jit_vert_func)(struct draw_jit_context *context,
 143                       struct vertex_header *io,
 144                       const char *vbuffers[PIPE_MAX_ATTRIBS],
 145                       unsigned start,
 146                       unsigned count,
 147                       unsigned stride,
 148                       struct pipe_vertex_buffer *vertex_buffers,
 149                       unsigned instance_id);
 150
 151
 152 typedef int
 153 (*draw_jit_vert_func_elts)(struct draw_jit_context *context,
 154                            struct vertex_header *io,
 155                            const char *vbuffers[PIPE_MAX_ATTRIBS],
 156                            const unsigned *fetch_elts,
 157                            unsigned fetch_count,
 158                            unsigned stride,
 159                            struct pipe_vertex_buffer *vertex_buffers,
 160                            unsigned instance_id);
 161
 162 struct draw_llvm_variant_key
 163 {
 164    unsigned nr_vertex_elements:8;
 165    unsigned nr_samplers:8;
 166    unsigned clamp_vertex_color:1;
 167    unsigned clip_xy:1;
 168    unsigned clip_z:1;
 169    unsigned clip_user:1;
 170    unsigned clip_halfz:1;
 171    unsigned bypass_viewport:1;
 172    unsigned need_edgeflags:1;
 173    unsigned ucp_enable:PIPE_MAX_CLIP_PLANES;
 174    unsigned pad:9-PIPE_MAX_CLIP_PLANES;
 175
 176    /* Variable number of vertex elements:
 177     */
 178    struct pipe_vertex_element vertex_element[1];
 179
 180    /* Followed by variable number of samplers:
 181     */
 182 /*   struct lp_sampler_static_state sampler; */
 183 };
 184
 185 #define DRAW_LLVM_MAX_VARIANT_KEY_SIZE \
 186    (sizeof(struct draw_llvm_variant_key) +      \
 187     PIPE_MAX_SAMPLERS * sizeof(struct lp_sampler_static_state) +        \
 188     (PIPE_MAX_ATTRIBS-1) * sizeof(struct pipe_vertex_element))
 189
 190
 191 static INLINE size_t
 192 draw_llvm_variant_key_size(unsigned nr_vertex_elements,
 193                            unsigned nr_samplers)
 194 {
 195    return (sizeof(struct draw_llvm_variant_key) +
 196            nr_samplers * sizeof(struct lp_sampler_static_state) +
 197            (nr_vertex_elements - 1) * sizeof(struct pipe_vertex_element));
 198 }
 199
 200
 201 static INLINE struct lp_sampler_static_state *
 202 draw_llvm_variant_key_samplers(struct draw_llvm_variant_key *key)
 203 {
 204    return (struct lp_sampler_static_state *)
 205       &key->vertex_element[key->nr_vertex_elements];
 206 }
 207
 208
 209
 210 struct draw_llvm_variant_list_item
 211 {
 212    struct draw_llvm_variant *base;
 213    struct draw_llvm_variant_list_item *next, *prev;
 214 };
 215
 216 struct draw_llvm_variant
 217 {
 218    struct gallivm_state *gallivm;
 219
 220    /* LLVM JIT builder types */
 221    LLVMTypeRef context_ptr_type;
 222    LLVMTypeRef buffer_ptr_type;
 223    LLVMTypeRef vb_ptr_type;
 224    LLVMTypeRef vertex_header_ptr_type;
 225
 226    LLVMValueRef function;
 227    LLVMValueRef function_elts;
 228    draw_jit_vert_func jit_func;
 229    draw_jit_vert_func_elts jit_func_elts;
 230
 231    struct llvm_vertex_shader *shader;
 232
 233    struct draw_llvm *llvm;
 234    struct draw_llvm_variant_list_item list_item_global;
 235    struct draw_llvm_variant_list_item list_item_local;
 236
 237    /* key is variable-sized, must be last */
 238    struct draw_llvm_variant_key key;
 239 };
 240
 241 struct llvm_vertex_shader {
 242    struct draw_vertex_shader base;
 243
 244    unsigned variant_key_size;
 245    struct draw_llvm_variant_list_item variants;
 246    unsigned variants_created;
 247    unsigned variants_cached;
 248 };
 249
 250 struct draw_llvm {
 251    struct draw_context *draw;
 252
 253    struct draw_jit_context jit_context;
 254
 255    struct draw_llvm_variant_list_item vs_variants_list;
 256    int nr_variants;
 257 };
 258
 259
 260 static INLINE struct llvm_vertex_shader *
 261 llvm_vertex_shader(struct draw_vertex_shader *vs)
 262 {
 263    return (struct llvm_vertex_shader *)vs;
 264 }
 265
 266
 267 struct draw_llvm *
 268 draw_llvm_create(struct draw_context *draw);
 269
 270 void
 271 draw_llvm_destroy(struct draw_llvm *llvm);
 272
 273 struct draw_llvm_variant *
 274 draw_llvm_create_variant(struct draw_llvm *llvm,
 275                          unsigned num_vertex_header_attribs,
 276                          const struct draw_llvm_variant_key *key);
 277
 278 void
 279 draw_llvm_destroy_variant(struct draw_llvm_variant *variant);
 280
 281 struct draw_llvm_variant_key *
 282 draw_llvm_make_variant_key(struct draw_llvm *llvm, char *store);
 283
 284 struct lp_build_sampler_soa *
 285 draw_llvm_sampler_soa_create(const struct lp_sampler_static_state *static_state,
 286                              LLVMValueRef context_ptr);
 287
 288 void
 289 draw_llvm_set_sampler_state(struct draw_context *draw);
 290
 291 void
 292 draw_llvm_set_mapped_texture(struct draw_context *draw,
 293                              unsigned sampler_idx,
 294                              uint32_t width, uint32_t height, uint32_t depth,
 295                              uint32_t first_level, uint32_t last_level,
 296                              uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 297                              uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 298                              const void *data[PIPE_MAX_TEXTURE_LEVELS]);
 299
 300 #endif