src/gallium/auxiliary/draw/draw_llvm.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  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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  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  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 #include "gallivm/lp_bld_limits.h"
  36
  37 #include "pipe/p_context.h"
  38 #include "util/u_simple_list.h"
  39
  40
  41 struct draw_llvm;
  42 struct llvm_vertex_shader;
  43
  44 struct draw_jit_texture
  45 {
  46    uint32_t width;
  47    uint32_t height;
  48    uint32_t depth;
  49    uint32_t first_level;
  50    uint32_t last_level;
  51    const void *base;
  52    uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
  53    uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
  54    uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
  55    float min_lod;
  56    float max_lod;
  57    float lod_bias;
  58    float border_color[4];
  59 };
  60
  61 enum {
  62    DRAW_JIT_TEXTURE_WIDTH = 0,
  63    DRAW_JIT_TEXTURE_HEIGHT,
  64    DRAW_JIT_TEXTURE_DEPTH,
  65    DRAW_JIT_TEXTURE_FIRST_LEVEL,
  66    DRAW_JIT_TEXTURE_LAST_LEVEL,
  67    DRAW_JIT_TEXTURE_BASE,
  68    DRAW_JIT_TEXTURE_ROW_STRIDE,
  69    DRAW_JIT_TEXTURE_IMG_STRIDE,
  70    DRAW_JIT_TEXTURE_MIP_OFFSETS,
  71    DRAW_JIT_TEXTURE_MIN_LOD,
  72    DRAW_JIT_TEXTURE_MAX_LOD,
  73    DRAW_JIT_TEXTURE_LOD_BIAS,
  74    DRAW_JIT_TEXTURE_BORDER_COLOR,
  75    DRAW_JIT_TEXTURE_NUM_FIELDS  /* number of fields above */
  76 };
  77
  78 enum {
  79    DRAW_JIT_VERTEX_VERTEX_ID = 0,
  80    DRAW_JIT_VERTEX_CLIP,
  81    DRAW_JIT_VERTEX_PRE_CLIP_POS,
  82    DRAW_JIT_VERTEX_DATA
  83 };
  84
  85 /**
  86  * This structure is passed directly to the generated vertex shader.
  87  *
  88  * It contains the derived state.
  89  *
  90  * Changes here must be reflected in the draw_jit_context_* macros.
  91  * Changes to the ordering should be avoided.
  92  *
  93  * Only use types with a clear size and padding here, in particular prefer the
  94  * stdint.h types to the basic integer types.
  95  */
  96 struct draw_jit_context
  97 {
  98    const float *vs_constants[LP_MAX_TGSI_CONST_BUFFERS];
  99    const float *gs_constants[LP_MAX_TGSI_CONST_BUFFERS];
 100    float (*planes) [DRAW_TOTAL_CLIP_PLANES][4];
 101    float *viewport;
 102
 103    struct draw_jit_texture textures[PIPE_MAX_SAMPLERS];
 104 };
 105
 106
 107 #define draw_jit_context_vs_constants(_gallivm, _ptr) \
 108    lp_build_struct_get_ptr(_gallivm, _ptr, 0, "vs_constants")
 109
 110 #define draw_jit_context_gs_constants(_gallivm, _ptr) \
 111    lp_build_struct_get_ptr(_gallivm, _ptr, 1, "gs_constants")
 112
 113 #define draw_jit_context_planes(_gallivm, _ptr) \
 114    lp_build_struct_get(_gallivm, _ptr, 2, "planes")
 115
 116 #define draw_jit_context_viewport(_gallivm, _ptr) \
 117    lp_build_struct_get(_gallivm, _ptr, 3, "viewport")
 118
 119 #define DRAW_JIT_CTX_TEXTURES 4
 120
 121 #define draw_jit_context_textures(_gallivm, _ptr) \
 122    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_CTX_TEXTURES, "textures")
 123
 124 #define draw_jit_header_id(_gallivm, _ptr)              \
 125    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_VERTEX_ID, "id")
 126
 127 #define draw_jit_header_clip(_gallivm, _ptr) \
 128    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP, "clip")
 129
 130 #define draw_jit_header_pre_clip_pos(_gallivm, _ptr) \
 131    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_PRE_CLIP_POS, "pre_clip_pos")
 132
 133 #define draw_jit_header_data(_gallivm, _ptr)            \
 134    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_DATA, "data")
 135
 136
 137 #define draw_jit_vbuffer_stride(_gallivm, _ptr)         \
 138    lp_build_struct_get(_gallivm, _ptr, 0, "stride")
 139
 140 #define draw_jit_vbuffer_offset(_gallivm, _ptr)         \
 141    lp_build_struct_get(_gallivm, _ptr, 1, "buffer_offset")
 142
 143
 144 typedef int
 145 (*draw_jit_vert_func)(struct draw_jit_context *context,
 146                       struct vertex_header *io,
 147                       const char *vbuffers[PIPE_MAX_ATTRIBS],
 148                       unsigned start,
 149                       unsigned count,
 150                       unsigned stride,
 151                       struct pipe_vertex_buffer *vertex_buffers,
 152                       unsigned instance_id);
 153
 154
 155 typedef int
 156 (*draw_jit_vert_func_elts)(struct draw_jit_context *context,
 157                            struct vertex_header *io,
 158                            const char *vbuffers[PIPE_MAX_ATTRIBS],
 159                            const unsigned *fetch_elts,
 160                            unsigned fetch_count,
 161                            unsigned stride,
 162                            struct pipe_vertex_buffer *vertex_buffers,
 163                            unsigned instance_id);
 164
 165 struct draw_llvm_variant_key
 166 {
 167    unsigned nr_vertex_elements:8;
 168    unsigned nr_samplers:8;
 169    unsigned clamp_vertex_color:1;
 170    unsigned clip_xy:1;
 171    unsigned clip_z:1;
 172    unsigned clip_user:1;
 173    unsigned clip_halfz:1;
 174    unsigned bypass_viewport:1;
 175    unsigned need_edgeflags:1;
 176    unsigned ucp_enable:PIPE_MAX_CLIP_PLANES;
 177    unsigned pad:9-PIPE_MAX_CLIP_PLANES;
 178
 179    /* Variable number of vertex elements:
 180     */
 181    struct pipe_vertex_element vertex_element[1];
 182
 183    /* Followed by variable number of samplers:
 184     */
 185 /*   struct lp_sampler_static_state sampler; */
 186 };
 187
 188 #define DRAW_LLVM_MAX_VARIANT_KEY_SIZE \
 189    (sizeof(struct draw_llvm_variant_key) +      \
 190     PIPE_MAX_SAMPLERS * sizeof(struct lp_sampler_static_state) +        \
 191     (PIPE_MAX_ATTRIBS-1) * sizeof(struct pipe_vertex_element))
 192
 193
 194 static INLINE size_t
 195 draw_llvm_variant_key_size(unsigned nr_vertex_elements,
 196                            unsigned nr_samplers)
 197 {
 198    return (sizeof(struct draw_llvm_variant_key) +
 199            nr_samplers * sizeof(struct lp_sampler_static_state) +
 200            (nr_vertex_elements - 1) * sizeof(struct pipe_vertex_element));
 201 }
 202
 203
 204 static INLINE struct lp_sampler_static_state *
 205 draw_llvm_variant_key_samplers(struct draw_llvm_variant_key *key)
 206 {
 207    return (struct lp_sampler_static_state *)
 208       &key->vertex_element[key->nr_vertex_elements];
 209 }
 210
 211
 212
 213 struct draw_llvm_variant_list_item
 214 {
 215    struct draw_llvm_variant *base;
 216    struct draw_llvm_variant_list_item *next, *prev;
 217 };
 218
 219 struct draw_llvm_variant
 220 {
 221    struct gallivm_state *gallivm;
 222
 223    /* LLVM JIT builder types */
 224    LLVMTypeRef context_ptr_type;
 225    LLVMTypeRef buffer_ptr_type;
 226    LLVMTypeRef vb_ptr_type;
 227    LLVMTypeRef vertex_header_ptr_type;
 228
 229    LLVMValueRef function;
 230    LLVMValueRef function_elts;
 231    draw_jit_vert_func jit_func;
 232    draw_jit_vert_func_elts jit_func_elts;
 233
 234    struct llvm_vertex_shader *shader;
 235
 236    struct draw_llvm *llvm;
 237    struct draw_llvm_variant_list_item list_item_global;
 238    struct draw_llvm_variant_list_item list_item_local;
 239
 240    /* key is variable-sized, must be last */
 241    struct draw_llvm_variant_key key;
 242 };
 243
 244 struct llvm_vertex_shader {
 245    struct draw_vertex_shader base;
 246
 247    unsigned variant_key_size;
 248    struct draw_llvm_variant_list_item variants;
 249    unsigned variants_created;
 250    unsigned variants_cached;
 251 };
 252
 253 struct draw_llvm {
 254    struct draw_context *draw;
 255
 256    struct draw_jit_context jit_context;
 257
 258    struct draw_llvm_variant_list_item vs_variants_list;
 259    int nr_variants;
 260 };
 261
 262
 263 static INLINE struct llvm_vertex_shader *
 264 llvm_vertex_shader(struct draw_vertex_shader *vs)
 265 {
 266    return (struct llvm_vertex_shader *)vs;
 267 }
 268
 269
 270 struct draw_llvm *
 271 draw_llvm_create(struct draw_context *draw);
 272
 273 void
 274 draw_llvm_destroy(struct draw_llvm *llvm);
 275
 276 struct draw_llvm_variant *
 277 draw_llvm_create_variant(struct draw_llvm *llvm,
 278                          unsigned num_vertex_header_attribs,
 279                          const struct draw_llvm_variant_key *key);
 280
 281 void
 282 draw_llvm_destroy_variant(struct draw_llvm_variant *variant);
 283
 284 struct draw_llvm_variant_key *
 285 draw_llvm_make_variant_key(struct draw_llvm *llvm, char *store);
 286
 287 struct lp_build_sampler_soa *
 288 draw_llvm_sampler_soa_create(const struct lp_sampler_static_state *static_state,
 289                              LLVMValueRef context_ptr);
 290
 291 void
 292 draw_llvm_set_sampler_state(struct draw_context *draw);
 293
 294 void
 295 draw_llvm_set_mapped_texture(struct draw_context *draw,
 296                              unsigned sampler_idx,
 297                              uint32_t width, uint32_t height, uint32_t depth,
 298                              uint32_t first_level, uint32_t last_level,
 299                              const void *base_ptr,
 300                              uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 301                              uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 302                              uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]);
 303
 304 #endif