1/************************************************************************** 2 * 3 * Copyright 2007 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/* Authors: 29 * Brian Paul 30 */ 31 32#include "util/u_inlines.h" 33#include "util/u_memory.h" 34 35#include "draw/draw_context.h" 36 37#include "lp_context.h" 38#include "lp_screen.h" 39#include "lp_state.h" 40#include "lp_debug.h" 41#include "state_tracker/sw_winsys.h" 42 43 44static void * 45llvmpipe_create_sampler_state(struct pipe_context *pipe, 46 const struct pipe_sampler_state *sampler) 47{ 48 struct pipe_sampler_state *state = mem_dup(sampler, sizeof *sampler); 49 50 if (LP_PERF & PERF_NO_MIP_LINEAR) { 51 if (state->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR) 52 state->min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST; 53 } 54 55 if (LP_PERF & PERF_NO_MIPMAPS) 56 state->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 57 58 if (LP_PERF & PERF_NO_LINEAR) { 59 state->mag_img_filter = PIPE_TEX_FILTER_NEAREST; 60 state->min_img_filter = PIPE_TEX_FILTER_NEAREST; 61 } 62 63 return state; 64} 65 66 67static void 68llvmpipe_bind_sampler_states(struct pipe_context *pipe, 69 enum pipe_shader_type shader, 70 unsigned start, 71 unsigned num, 72 void **samplers) 73{ 74 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); 75 unsigned i; 76 77 assert(shader < PIPE_SHADER_TYPES); 78 assert(start + num <= ARRAY_SIZE(llvmpipe->samplers[shader])); 79 80 draw_flush(llvmpipe->draw); 81 82 /* set the new samplers */ 83 for (i = 0; i < num; i++) { 84 llvmpipe->samplers[shader][start + i] = samplers[i]; 85 } 86 87 /* find highest non-null samplers[] entry */ 88 { 89 unsigned j = MAX2(llvmpipe->num_samplers[shader], start + num); 90 while (j > 0 && llvmpipe->samplers[shader][j - 1] == NULL) 91 j--; 92 llvmpipe->num_samplers[shader] = j; 93 } 94 95 if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { 96 draw_set_samplers(llvmpipe->draw, 97 shader, 98 llvmpipe->samplers[shader], 99 llvmpipe->num_samplers[shader]); 100 } 101 else { 102 llvmpipe->dirty |= LP_NEW_SAMPLER; 103 } 104} 105 106 107static void 108llvmpipe_set_sampler_views(struct pipe_context *pipe, 109 enum pipe_shader_type shader, 110 unsigned start, 111 unsigned num, 112 struct pipe_sampler_view **views) 113{ 114 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); 115 uint i; 116 117 assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS); 118 119 assert(shader < PIPE_SHADER_TYPES); 120 assert(start + num <= ARRAY_SIZE(llvmpipe->sampler_views[shader])); 121 122 draw_flush(llvmpipe->draw); 123 124 /* set the new sampler views */ 125 for (i = 0; i < num; i++) { 126 /* Note: we're using pipe_sampler_view_release() here to work around 127 * a possible crash when the old view belongs to another context that 128 * was already destroyed. 129 */ 130 pipe_sampler_view_release(pipe, 131 &llvmpipe->sampler_views[shader][start + i]); 132 /* 133 * Warn if someone tries to set a view created in a different context 134 * (which is why we need the hack above in the first place). 135 * An assert would be better but st/mesa relies on it... 136 */ 137 if (views[i] && views[i]->context != pipe) { 138 debug_printf("Illegal setting of sampler_view %d created in another " 139 "context\n", i); 140 } 141 pipe_sampler_view_reference(&llvmpipe->sampler_views[shader][start + i], 142 views[i]); 143 } 144 145 /* find highest non-null sampler_views[] entry */ 146 { 147 unsigned j = MAX2(llvmpipe->num_sampler_views[shader], start + num); 148 while (j > 0 && llvmpipe->sampler_views[shader][j - 1] == NULL) 149 j--; 150 llvmpipe->num_sampler_views[shader] = j; 151 } 152 153 if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { 154 draw_set_sampler_views(llvmpipe->draw, 155 shader, 156 llvmpipe->sampler_views[shader], 157 llvmpipe->num_sampler_views[shader]); 158 } 159 else { 160 llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW; 161 } 162} 163 164 165static struct pipe_sampler_view * 166llvmpipe_create_sampler_view(struct pipe_context *pipe, 167 struct pipe_resource *texture, 168 const struct pipe_sampler_view *templ) 169{ 170 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 171 /* 172 * XXX: bind flags from OpenGL state tracker are notoriously unreliable. 173 * This looks unfixable, so fix the bind flags instead when it happens. 174 */ 175 if (!(texture->bind & PIPE_BIND_SAMPLER_VIEW)) { 176 debug_printf("Illegal sampler view creation without bind flag\n"); 177 texture->bind |= PIPE_BIND_SAMPLER_VIEW; 178 } 179 180 if (view) { 181 *view = *templ; 182 view->reference.count = 1; 183 view->texture = NULL; 184 pipe_resource_reference(&view->texture, texture); 185 view->context = pipe; 186 187#ifdef DEBUG 188 /* 189 * This is possibly too lenient, but the primary reason is just 190 * to catch state trackers which forget to initialize this, so 191 * it only catches clearly impossible view targets. 192 */ 193 if (view->target != texture->target) { 194 if (view->target == PIPE_TEXTURE_1D) 195 assert(texture->target == PIPE_TEXTURE_1D_ARRAY); 196 else if (view->target == PIPE_TEXTURE_1D_ARRAY) 197 assert(texture->target == PIPE_TEXTURE_1D); 198 else if (view->target == PIPE_TEXTURE_2D) 199 assert(texture->target == PIPE_TEXTURE_2D_ARRAY || 200 texture->target == PIPE_TEXTURE_CUBE || 201 texture->target == PIPE_TEXTURE_CUBE_ARRAY); 202 else if (view->target == PIPE_TEXTURE_2D_ARRAY) 203 assert(texture->target == PIPE_TEXTURE_2D || 204 texture->target == PIPE_TEXTURE_CUBE || 205 texture->target == PIPE_TEXTURE_CUBE_ARRAY); 206 else if (view->target == PIPE_TEXTURE_CUBE) 207 assert(texture->target == PIPE_TEXTURE_CUBE_ARRAY || 208 texture->target == PIPE_TEXTURE_2D_ARRAY); 209 else if (view->target == PIPE_TEXTURE_CUBE_ARRAY) 210 assert(texture->target == PIPE_TEXTURE_CUBE || 211 texture->target == PIPE_TEXTURE_2D_ARRAY); 212 else 213 assert(0); 214 } 215#endif 216 } 217 218 return view; 219} 220 221 222static void 223llvmpipe_sampler_view_destroy(struct pipe_context *pipe, 224 struct pipe_sampler_view *view) 225{ 226 pipe_resource_reference(&view->texture, NULL); 227 FREE(view); 228} 229 230 231static void 232llvmpipe_delete_sampler_state(struct pipe_context *pipe, 233 void *sampler) 234{ 235 FREE( sampler ); 236} 237 238 239static void 240prepare_shader_sampling( 241 struct llvmpipe_context *lp, 242 unsigned num, 243 struct pipe_sampler_view **views, 244 unsigned shader_type) 245{ 246 247 unsigned i; 248 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; 249 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; 250 uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]; 251 const void *addr; 252 253 assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS); 254 if (!num) 255 return; 256 257 for (i = 0; i < num; i++) { 258 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 259 260 if (view) { 261 struct pipe_resource *tex = view->texture; 262 struct llvmpipe_resource *lp_tex = llvmpipe_resource(tex); 263 unsigned width0 = tex->width0; 264 unsigned num_layers = tex->depth0; 265 unsigned first_level = 0; 266 unsigned last_level = 0; 267 268 if (!lp_tex->dt) { 269 /* regular texture - setup array of mipmap level offsets */ 270 struct pipe_resource *res = view->texture; 271 int j; 272 273 if (llvmpipe_resource_is_texture(res)) { 274 first_level = view->u.tex.first_level; 275 last_level = view->u.tex.last_level; 276 assert(first_level <= last_level); 277 assert(last_level <= res->last_level); 278 addr = lp_tex->tex_data; 279 280 for (j = first_level; j <= last_level; j++) { 281 mip_offsets[j] = lp_tex->mip_offsets[j]; 282 row_stride[j] = lp_tex->row_stride[j]; 283 img_stride[j] = lp_tex->img_stride[j]; 284 } 285 if (tex->target == PIPE_TEXTURE_1D_ARRAY || 286 tex->target == PIPE_TEXTURE_2D_ARRAY || 287 tex->target == PIPE_TEXTURE_CUBE || 288 tex->target == PIPE_TEXTURE_CUBE_ARRAY) { 289 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1; 290 for (j = first_level; j <= last_level; j++) { 291 mip_offsets[j] += view->u.tex.first_layer * 292 lp_tex->img_stride[j]; 293 } 294 if (view->target == PIPE_TEXTURE_CUBE || 295 view->target == PIPE_TEXTURE_CUBE_ARRAY) { 296 assert(num_layers % 6 == 0); 297 } 298 assert(view->u.tex.first_layer <= view->u.tex.last_layer); 299 assert(view->u.tex.last_layer < res->array_size); 300 } 301 } 302 else { 303 unsigned view_blocksize = util_format_get_blocksize(view->format); 304 addr = lp_tex->data; 305 /* probably don't really need to fill that out */ 306 mip_offsets[0] = 0; 307 row_stride[0] = 0; 308 img_stride[0] = 0; 309 310 /* everything specified in number of elements here. */ 311 width0 = view->u.buf.size / view_blocksize; 312 addr = (uint8_t *)addr + view->u.buf.offset; 313 assert(view->u.buf.offset + view->u.buf.size <= res->width0); 314 } 315 } 316 else { 317 /* display target texture/surface */ 318 /* 319 * XXX: Where should this be unmapped? 320 */ 321 struct llvmpipe_screen *screen = llvmpipe_screen(tex->screen); 322 struct sw_winsys *winsys = screen->winsys; 323 addr = winsys->displaytarget_map(winsys, lp_tex->dt, 324 PIPE_TRANSFER_READ); 325 row_stride[0] = lp_tex->row_stride[0]; 326 img_stride[0] = lp_tex->img_stride[0]; 327 mip_offsets[0] = 0; 328 assert(addr); 329 } 330 draw_set_mapped_texture(lp->draw, 331 shader_type, 332 i, 333 width0, tex->height0, num_layers, 334 first_level, last_level, 335 addr, 336 row_stride, img_stride, mip_offsets); 337 } 338 } 339} 340 341 342/** 343 * Called whenever we're about to draw (no dirty flag, FIXME?). 344 */ 345void 346llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp, 347 unsigned num, 348 struct pipe_sampler_view **views) 349{ 350 prepare_shader_sampling(lp, num, views, PIPE_SHADER_VERTEX); 351} 352 353 354/** 355 * Called whenever we're about to draw (no dirty flag, FIXME?). 356 */ 357void 358llvmpipe_prepare_geometry_sampling(struct llvmpipe_context *lp, 359 unsigned num, 360 struct pipe_sampler_view **views) 361{ 362 prepare_shader_sampling(lp, num, views, PIPE_SHADER_GEOMETRY); 363} 364 365 366void 367llvmpipe_init_sampler_funcs(struct llvmpipe_context *llvmpipe) 368{ 369 llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state; 370 371 llvmpipe->pipe.bind_sampler_states = llvmpipe_bind_sampler_states; 372 llvmpipe->pipe.create_sampler_view = llvmpipe_create_sampler_view; 373 llvmpipe->pipe.set_sampler_views = llvmpipe_set_sampler_views; 374 llvmpipe->pipe.sampler_view_destroy = llvmpipe_sampler_view_destroy; 375 llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state; 376} 377