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
  36 #include "pipe/p_context.h"
  37 #include "util/u_simple_list.h"
  38
  39 #include <llvm-c/Core.h>
  40 #include <llvm-c/Analysis.h>
  41 #include <llvm-c/Target.h>
  42 #include <llvm-c/ExecutionEngine.h>
  43
  44 #define DRAW_MAX_TEXTURE_LEVELS 13  /* 4K x 4K for now */
  45
  46 struct draw_llvm;
  47 struct llvm_vertex_shader;
  48
  49 struct draw_jit_texture
  50 {
  51    uint32_t width;
  52    uint32_t height;
  53    uint32_t depth;
  54    uint32_t last_level;
  55    uint32_t row_stride[DRAW_MAX_TEXTURE_LEVELS];
  56    uint32_t img_stride[DRAW_MAX_TEXTURE_LEVELS];
  57    const void *data[DRAW_MAX_TEXTURE_LEVELS];
  58 };
  59
  60 enum {
  61    DRAW_JIT_TEXTURE_WIDTH = 0,
  62    DRAW_JIT_TEXTURE_HEIGHT,
  63    DRAW_JIT_TEXTURE_DEPTH,
  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_NUM_FIELDS  /* number of fields above */
  69 };
  70
  71 enum {
  72    DRAW_JIT_VERTEX_VERTEX_ID = 0,
  73    DRAW_JIT_VERTEX_CLIP,
  74    DRAW_JIT_VERTEX_DATA
  75 };
  76
  77 /**
  78  * This structure is passed directly to the generated vertex shader.
  79  *
  80  * It contains the derived state.
  81  *
  82  * Changes here must be reflected in the draw_jit_context_* macros.
  83  * Changes to the ordering should be avoided.
  84  *
  85  * Only use types with a clear size and padding here, in particular prefer the
  86  * stdint.h types to the basic integer types.
  87  */
  88 struct draw_jit_context
  89 {
  90    const float *vs_constants;
  91    const float *gs_constants;
  92
  93
  94    struct draw_jit_texture textures[PIPE_MAX_VERTEX_SAMPLERS];
  95 };
  96
  97
  98 #define draw_jit_context_vs_constants(_builder, _ptr) \
  99    lp_build_struct_get(_builder, _ptr, 0, "vs_constants")
 100
 101 #define draw_jit_context_gs_constants(_builder, _ptr) \
 102    lp_build_struct_get(_builder, _ptr, 1, "gs_constants")
 103
 104 #define DRAW_JIT_CTX_TEXTURES 2
 105
 106 #define draw_jit_context_textures(_builder, _ptr) \
 107    lp_build_struct_get_ptr(_builder, _ptr, DRAW_JIT_CTX_TEXTURES, "textures")
 108
 109
 110
 111 #define draw_jit_header_id(_builder, _ptr)              \
 112    lp_build_struct_get_ptr(_builder, _ptr, 0, "id")
 113
 114 #define draw_jit_header_clip(_builder, _ptr) \
 115    lp_build_struct_get(_builder, _ptr, 1, "clip")
 116
 117 #define draw_jit_header_data(_builder, _ptr)            \
 118    lp_build_struct_get_ptr(_builder, _ptr, 2, "data")
 119
 120
 121 #define draw_jit_vbuffer_stride(_builder, _ptr)         \
 122    lp_build_struct_get(_builder, _ptr, 0, "stride")
 123
 124 #define draw_jit_vbuffer_max_index(_builder, _ptr)      \
 125    lp_build_struct_get(_builder, _ptr, 1, "max_index")
 126
 127 #define draw_jit_vbuffer_offset(_builder, _ptr)         \
 128    lp_build_struct_get(_builder, _ptr, 2, "buffer_offset")
 129
 130
 131 typedef void
 132 (*draw_jit_vert_func)(struct draw_jit_context *context,
 133                       struct vertex_header *io,
 134                       const char *vbuffers[PIPE_MAX_ATTRIBS],
 135                       unsigned start,
 136                       unsigned count,
 137                       unsigned stride,
 138                       struct pipe_vertex_buffer *vertex_buffers);
 139
 140
 141 typedef void
 142 (*draw_jit_vert_func_elts)(struct draw_jit_context *context,
 143                            struct vertex_header *io,
 144                            const char *vbuffers[PIPE_MAX_ATTRIBS],
 145                            const unsigned *fetch_elts,
 146                            unsigned fetch_count,
 147                            unsigned stride,
 148                            struct pipe_vertex_buffer *vertex_buffers);
 149
 150 struct draw_llvm_variant_key
 151 {
 152    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 153    unsigned                   nr_vertex_elements;
 154    struct pipe_shader_state   vs;
 155    struct lp_sampler_static_state sampler[PIPE_MAX_VERTEX_SAMPLERS];
 156 };
 157
 158 struct draw_llvm_variant_list_item
 159 {
 160    struct draw_llvm_variant *base;
 161    struct draw_llvm_variant_list_item *next, *prev;
 162 };
 163
 164 struct draw_llvm_variant
 165 {
 166    struct draw_llvm_variant_key key;
 167    LLVMValueRef function;
 168    LLVMValueRef function_elts;
 169    draw_jit_vert_func jit_func;
 170    draw_jit_vert_func_elts jit_func_elts;
 171
 172    struct llvm_vertex_shader *shader;
 173
 174    struct draw_llvm *llvm;
 175    struct draw_llvm_variant_list_item list_item_global;
 176    struct draw_llvm_variant_list_item list_item_local;
 177 };
 178
 179 struct llvm_vertex_shader {
 180    struct draw_vertex_shader base;
 181
 182    struct draw_llvm_variant_list_item variants;
 183    unsigned variants_created;
 184    unsigned variants_cached;
 185 };
 186
 187 struct draw_llvm {
 188    struct draw_context *draw;
 189
 190    struct draw_jit_context jit_context;
 191
 192    struct draw_llvm_variant_list_item vs_variants_list;
 193    int nr_variants;
 194
 195    LLVMModuleRef module;
 196    LLVMExecutionEngineRef engine;
 197    LLVMModuleProviderRef provider;
 198    LLVMTargetDataRef target;
 199    LLVMPassManagerRef pass;
 200
 201    LLVMTypeRef context_ptr_type;
 202    LLVMTypeRef vertex_header_ptr_type;
 203    LLVMTypeRef buffer_ptr_type;
 204    LLVMTypeRef vb_ptr_type;
 205 };
 206
 207 static INLINE struct llvm_vertex_shader *
 208 llvm_vertex_shader(struct draw_vertex_shader *vs)
 209 {
 210    return (struct llvm_vertex_shader *)vs;
 211 }
 212
 213
 214 struct draw_llvm *
 215 draw_llvm_create(struct draw_context *draw);
 216
 217 void
 218 draw_llvm_destroy(struct draw_llvm *llvm);
 219
 220 struct draw_llvm_variant *
 221 draw_llvm_create_variant(struct draw_llvm *llvm, int num_inputs);
 222
 223 void
 224 draw_llvm_destroy_variant(struct draw_llvm_variant *variant);
 225
 226 void
 227 draw_llvm_make_variant_key(struct draw_llvm *llvm,
 228                            struct draw_llvm_variant_key *key);
 229
 230 LLVMValueRef
 231 draw_llvm_translate_from(LLVMBuilderRef builder,
 232                          LLVMValueRef vbuffer,
 233                          enum pipe_format from_format);
 234
 235 struct lp_build_sampler_soa *
 236 draw_llvm_sampler_soa_create(const struct lp_sampler_static_state *static_state,
 237                              LLVMValueRef context_ptr);
 238
 239 void
 240 draw_llvm_set_mapped_texture(struct draw_context *draw,
 241                              unsigned sampler_idx,
 242                              uint32_t width, uint32_t height, uint32_t depth,
 243                              uint32_t last_level,
 244                              uint32_t row_stride[DRAW_MAX_TEXTURE_LEVELS],
 245                              uint32_t img_stride[DRAW_MAX_TEXTURE_LEVELS],
 246                              const void *data[DRAW_MAX_TEXTURE_LEVELS]);
 247
 248 #endif