1 /**************************************************************************
2 *
3 * Copyright (C) 2014 Red Hat Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 **************************************************************************/
24
25 #ifndef VREND_SHADER_H
26 #define VREND_SHADER_H
27
28 #include "pipe/p_state.h"
29 #include "pipe/p_shader_tokens.h"
30
31 #include "vrend_strbuf.h"
32
33 #define VIRGL_NUM_CLIP_PLANES 8
34
35 #define VREND_POLYGON_STIPPLE_SIZE 32
36
37 #define VREND_SHADER_SAMPLER_VIEWS_MASK_LENGTH \
38 ((PIPE_MAX_SHADER_SAMPLER_VIEWS + 63) / 64)
39
40 enum gl_advanced_blend_mode
41 {
42 BLEND_NONE = 0,
43 BLEND_MULTIPLY,
44 BLEND_SCREEN,
45 BLEND_OVERLAY,
46 BLEND_DARKEN,
47 BLEND_LIGHTEN,
48 BLEND_COLORDODGE,
49 BLEND_COLORBURN,
50 BLEND_HARDLIGHT,
51 BLEND_SOFTLIGHT,
52 BLEND_DIFFERENCE,
53 BLEND_EXCLUSION,
54 BLEND_HSL_HUE,
55 BLEND_HSL_SATURATION,
56 BLEND_HSL_COLOR,
57 BLEND_HSL_LUMINOSITY,
58 BLEND_ALL
59 };
60
61
62 /* need to store patching info for interpolation */
63 struct vrend_interp_info {
64 unsigned semantic_name : 6;
65 unsigned semantic_index : 16;
66 unsigned interpolate : 3;
67 unsigned location : 3;
68 };
69
70 struct vrend_array {
71 int first;
72 int array_size;
73 };
74
75 struct vrend_layout_info {
76 unsigned name : 6;
77 unsigned sid : 16 ;
78 unsigned location : 16 ;
79 unsigned array_id : 16 ;
80 };
81
82 struct vrend_fs_shader_info {
83 int num_interps;
84 int glsl_ver;
85 bool has_sample_input;
86 bool has_noperspective;
87 struct vrend_interp_info interpinfo[PIPE_MAX_SHADER_INPUTS];
88 };
89
90 struct vrend_shader_info_out {
91 uint8_t num_generic_and_patch;
92 uint8_t num_indirect_generic;
93 uint8_t num_indirect_patch;
94 bool guest_sent_io_arrays;
95 };
96
97 struct vrend_shader_info_in {
98 uint64_t generic_emitted_mask;
99 uint64_t texcoord_emitted_mask;
100 bool indirect_generic_or_patch : 1;
101 bool use_pervertex : 1;
102 };
103
104 struct vrend_shader_io_array {
105 enum tgsi_semantic name : 6;
106 uint32_t sid : 6;
107 uint32_t size : 6;
108 uint32_t array_id : 6;
109 uint32_t padding : 8;
110 };
111
112 struct vrend_shader_io_array_info {
113 uint32_t num_arrays;
114 struct vrend_shader_io_array layout[16];
115 };
116
117 struct vrend_shader_info {
118 uint32_t invariant_outputs[4];
119 uint64_t in_generic_emitted_mask;
120 uint64_t in_texcoord_emitted_mask;
121
122 uint64_t out_generic_emitted_mask;
123 uint64_t out_patch_emitted_mask;
124
125 struct vrend_shader_io_array_info output_arrays;
126
127 struct vrend_array *sampler_arrays;
128 struct vrend_array *image_arrays;
129 char **so_names;
130 struct pipe_stream_output_info so_info;
131
132 /* 8 cbufs + depth + stencil + samplemask */
133 int8_t fs_output_layout[12];
134
135 uint32_t samplers_used_mask;
136 uint32_t images_used_mask;
137 uint32_t ubo_used_mask;
138 uint32_t ssbo_used_mask;
139 uint32_t shadow_samp_mask;
140 uint32_t attrib_input_mask;
141 uint32_t fs_blend_equation_advanced;
142 uint32_t fog_input_mask;
143 uint32_t fog_output_mask;
144
145 int num_consts;
146 int num_inputs;
147 int num_outputs;
148 int gs_out_prim;
149 int tes_prim;
150 int num_sampler_arrays;
151 int num_image_arrays;
152
153 uint8_t out_texcoord_emitted_mask;
154 uint8_t ubo_indirect : 1;
155 uint8_t tes_point_mode : 1;
156 uint8_t gles_use_tex_query_level : 1;
157 uint8_t separable_program : 1;
158 uint8_t has_input_arrays : 1;
159 uint8_t has_output_arrays : 1;
160 uint8_t use_pervertex_in : 1;
161 };
162
163 struct vrend_variable_shader_info {
164 struct vrend_fs_shader_info fs_info;
165 uint32_t num_in_clip:4;
166 uint32_t num_in_cull:4;
167 uint32_t num_out_clip:4;
168 uint32_t num_out_cull:4;
169 int num_ucp;
170 int legacy_color_bits;
171 };
172
173 struct vrend_shader_key {
174 uint64_t out_generic_expected_mask;
175 uint64_t out_texcoord_expected_mask;
176
177 uint64_t in_generic_expected_mask;
178 uint64_t in_texcoord_expected_mask;
179 uint64_t in_patch_expected_mask;
180
181 uint32_t force_invariant_inputs[4];
182
183 struct vrend_fs_shader_info fs_info;
184 struct vrend_shader_io_array_info in_arrays;
185
186 union {
187 struct {
188 uint8_t surface_component_bits[PIPE_MAX_COLOR_BUFS];
189 uint32_t coord_replace;
190 uint8_t swizzle_output_rgb_to_bgr;
191 uint8_t needs_manual_srgb_encode_bitmask;
192 uint8_t cbufs_are_a8_bitmask;
193 uint8_t cbufs_signed_int_bitmask;
194 uint8_t cbufs_unsigned_int_bitmask;
195 uint32_t logicop_func : 4;
196 uint32_t logicop_enabled : 1;
197 uint32_t prim_is_points : 1;
198 uint32_t lower_left_origin : 1;
199 uint32_t available_color_in_bits : 4;
200 } fs;
201
202 struct {
203 uint32_t attrib_signed_int_bitmask;
204 uint32_t attrib_unsigned_int_bitmask;
205 uint32_t attrib_zyxw_bitmask;
206 uint32_t fog_fixup_mask;
207 } vs;
208
209 struct {
210 uint32_t emit_clip_distance : 1;
211 } gs;
212 };
213
214 uint64_t sampler_views_lower_swizzle_mask[VREND_SHADER_SAMPLER_VIEWS_MASK_LENGTH];
215 uint64_t sampler_views_emulated_rect_mask[VREND_SHADER_SAMPLER_VIEWS_MASK_LENGTH];
216 uint16_t tex_swizzle[PIPE_MAX_SHADER_SAMPLER_VIEWS];
217
218 uint8_t alpha_test;
219 uint8_t num_in_cull : 4;
220 uint8_t num_in_clip : 4;
221 uint8_t num_out_cull : 4;
222 uint8_t num_out_clip : 4;
223 uint8_t pstipple_enabled : 1;
224 uint8_t add_alpha_test : 1;
225 uint8_t color_two_side : 1;
226 uint8_t gs_present : 1;
227 uint8_t tcs_present : 1;
228 uint8_t tes_present : 1;
229 uint8_t flatshade : 1;
230 uint8_t require_input_arrays : 1;
231 uint8_t require_output_arrays : 1;
232 uint8_t use_pervertex_in : 1;
233 };
234
235 struct vrend_shader_cfg {
236 uint32_t glsl_version : 12;
237 uint32_t max_draw_buffers : 4;
238 uint32_t max_shader_patch_varyings : 6;
239 uint32_t use_gles : 1;
240 uint32_t use_core_profile : 1;
241 uint32_t use_explicit_locations : 1;
242 uint32_t has_arrays_of_arrays : 1;
243 uint32_t has_gpu_shader5 : 1;
244 uint32_t has_es31_compat : 1;
245 uint32_t has_conservative_depth : 1;
246 uint32_t use_integer : 1;
247 uint32_t has_dual_src_blend : 1;
248 uint32_t has_fbfetch_coherent : 1;
249 uint32_t has_cull_distance : 1;
250 uint32_t has_nopersective : 1;
251 uint32_t has_texture_shadow_lod : 1;
252 };
253
254 struct vrend_context;
255
256 #define SHADER_MAX_STRINGS 3
257 #define SHADER_STRING_VER_EXT 0
258 #define SHADER_STRING_HDR 1
259
260 bool vrend_convert_shader(const struct vrend_context *rctx,
261 const struct vrend_shader_cfg *cfg,
262 const struct tgsi_token *tokens,
263 uint32_t req_local_mem,
264 const struct vrend_shader_key *key,
265 struct vrend_shader_info *sinfo,
266 struct vrend_variable_shader_info *var_sinfo,
267 struct vrend_strarray *shader);
268
269 const char *vrend_shader_samplertypeconv(bool use_gles, int sampler_type);
270
271 char vrend_shader_samplerreturnconv(enum tgsi_return_type type);
272
273 int vrend_shader_lookup_sampler_array(const struct vrend_shader_info *sinfo, int index);
274
275 bool vrend_shader_create_passthrough_tcs(const struct vrend_context *ctx,
276 const struct vrend_shader_cfg *cfg,
277 const struct tgsi_token *vs_info,
278 const struct vrend_shader_key *key,
279 const float tess_factors[6],
280 struct vrend_shader_info *sinfo,
281 struct vrend_strarray *shader,
282 int vertices_per_patch);
283
284 bool vrend_shader_needs_alpha_func(const struct vrend_shader_key *key);
285
286 bool vrend_shader_query_separable_program(const struct tgsi_token *tokens,
287 const struct vrend_shader_cfg *cfg);
288
vrend_shader_sampler_views_mask_get(const uint64_t mask[static VREND_SHADER_SAMPLER_VIEWS_MASK_LENGTH],int index)289 static inline bool vrend_shader_sampler_views_mask_get(
290 const uint64_t mask[static VREND_SHADER_SAMPLER_VIEWS_MASK_LENGTH],
291 int index)
292 {
293 return (mask[index / 64] >> (index % 64)) & 1;
294 }
295
vrend_shader_sampler_views_mask_set(uint64_t mask[static VREND_SHADER_SAMPLER_VIEWS_MASK_LENGTH],int index)296 static inline void vrend_shader_sampler_views_mask_set(
297 uint64_t mask[static VREND_SHADER_SAMPLER_VIEWS_MASK_LENGTH],
298 int index)
299 {
300 mask[index / 64] |= 1ull << (index % 64);
301 }
302
303 #endif
304