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
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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
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
draw_llvm_variant_key_size(unsigned nr_vertex_elements,unsigned nr_samplers)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 *
draw_llvm_variant_key_samplers(struct draw_llvm_variant_key * key)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 *
llvm_vertex_shader(struct draw_vertex_shader * vs)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
301