1 /************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 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 TUNGSTEN GRAPHICS 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 44 static void * 45 llvmpipe_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 67 static void 68 llvmpipe_bind_sampler_states(struct pipe_context *pipe, 69 unsigned 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 <= Elements(llvmpipe->samplers[shader])); 79 80 /* Check for no-op */ 81 if (start + num <= llvmpipe->num_samplers[shader] && 82 !memcmp(llvmpipe->samplers[shader] + start, samplers, 83 num * sizeof(void *))) { 84 return; 85 } 86 87 draw_flush(llvmpipe->draw); 88 89 /* set the new samplers */ 90 for (i = 0; i < num; i++) { 91 llvmpipe->samplers[shader][start + i] = samplers[i]; 92 } 93 94 /* find highest non-null samplers[] entry */ 95 { 96 unsigned j = MAX2(llvmpipe->num_samplers[shader], start + num); 97 while (j > 0 && llvmpipe->samplers[shader][j - 1] == NULL) 98 j--; 99 llvmpipe->num_samplers[shader] = j; 100 } 101 102 if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { 103 draw_set_samplers(llvmpipe->draw, 104 shader, 105 llvmpipe->samplers[shader], 106 llvmpipe->num_samplers[shader]); 107 } 108 109 llvmpipe->dirty |= LP_NEW_SAMPLER; 110 } 111 112 113 static void 114 llvmpipe_bind_fragment_sampler_states(struct pipe_context *pipe, 115 unsigned num, void **samplers) 116 { 117 llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, 0, num, samplers); 118 } 119 120 121 static void 122 llvmpipe_bind_vertex_sampler_states(struct pipe_context *pipe, 123 unsigned num, void **samplers) 124 { 125 llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_VERTEX, 0, num, samplers); 126 } 127 128 129 static void 130 llvmpipe_bind_geometry_sampler_states(struct pipe_context *pipe, 131 unsigned num, void **samplers) 132 { 133 llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_GEOMETRY, 0, num, samplers); 134 } 135 136 static void 137 llvmpipe_set_sampler_views(struct pipe_context *pipe, 138 unsigned shader, 139 unsigned start, 140 unsigned num, 141 struct pipe_sampler_view **views) 142 { 143 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe); 144 uint i; 145 146 assert(num <= PIPE_MAX_SAMPLERS); 147 148 assert(shader < PIPE_SHADER_TYPES); 149 assert(start + num <= Elements(llvmpipe->sampler_views[shader])); 150 151 /* Check for no-op */ 152 if (start + num <= llvmpipe->num_sampler_views[shader] && 153 !memcmp(llvmpipe->sampler_views[shader] + start, views, 154 num * sizeof(struct pipe_sampler_view *))) { 155 return; 156 } 157 158 draw_flush(llvmpipe->draw); 159 160 /* set the new sampler views */ 161 for (i = 0; i < num; i++) { 162 pipe_sampler_view_reference(&llvmpipe->sampler_views[shader][start + i], 163 views[i]); 164 } 165 166 /* find highest non-null sampler_views[] entry */ 167 { 168 unsigned j = MAX2(llvmpipe->num_sampler_views[shader], start + num); 169 while (j > 0 && llvmpipe->sampler_views[shader][j - 1] == NULL) 170 j--; 171 llvmpipe->num_sampler_views[shader] = j; 172 } 173 174 if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { 175 draw_set_sampler_views(llvmpipe->draw, 176 shader, 177 llvmpipe->sampler_views[shader], 178 llvmpipe->num_sampler_views[shader]); 179 } 180 181 llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW; 182 } 183 184 185 static void 186 llvmpipe_set_fragment_sampler_views(struct pipe_context *pipe, 187 unsigned num, 188 struct pipe_sampler_view **views) 189 { 190 llvmpipe_set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, num, views); 191 } 192 193 194 static void 195 llvmpipe_set_vertex_sampler_views(struct pipe_context *pipe, 196 unsigned num, 197 struct pipe_sampler_view **views) 198 { 199 llvmpipe_set_sampler_views(pipe, PIPE_SHADER_VERTEX, 0, num, views); 200 } 201 202 203 static void 204 llvmpipe_set_geometry_sampler_views(struct pipe_context *pipe, 205 unsigned num, 206 struct pipe_sampler_view **views) 207 { 208 llvmpipe_set_sampler_views(pipe, PIPE_SHADER_GEOMETRY, 0, num, views); 209 } 210 211 static struct pipe_sampler_view * 212 llvmpipe_create_sampler_view(struct pipe_context *pipe, 213 struct pipe_resource *texture, 214 const struct pipe_sampler_view *templ) 215 { 216 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); 217 218 if (view) { 219 *view = *templ; 220 view->reference.count = 1; 221 view->texture = NULL; 222 pipe_resource_reference(&view->texture, texture); 223 view->context = pipe; 224 } 225 226 return view; 227 } 228 229 230 static void 231 llvmpipe_sampler_view_destroy(struct pipe_context *pipe, 232 struct pipe_sampler_view *view) 233 { 234 pipe_resource_reference(&view->texture, NULL); 235 FREE(view); 236 } 237 238 239 static void 240 llvmpipe_delete_sampler_state(struct pipe_context *pipe, 241 void *sampler) 242 { 243 FREE( sampler ); 244 } 245 246 247 /** 248 * Called during state validation when LP_NEW_SAMPLER_VIEW is set. 249 */ 250 void 251 llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp, 252 unsigned num, 253 struct pipe_sampler_view **views) 254 { 255 unsigned i; 256 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; 257 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; 258 const void *data[PIPE_MAX_TEXTURE_LEVELS]; 259 260 assert(num <= PIPE_MAX_SAMPLERS); 261 if (!num) 262 return; 263 264 for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { 265 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 266 267 if (view) { 268 struct pipe_resource *tex = view->texture; 269 struct llvmpipe_resource *lp_tex = llvmpipe_resource(tex); 270 271 /* We're referencing the texture's internal data, so save a 272 * reference to it. 273 */ 274 pipe_resource_reference(&lp->mapped_vs_tex[i], tex); 275 276 if (!lp_tex->dt) { 277 /* regular texture - setup array of mipmap level pointers */ 278 int j; 279 for (j = view->u.tex.first_level; j <= tex->last_level; j++) { 280 data[j] = 281 llvmpipe_get_texture_image_all(lp_tex, j, LP_TEX_USAGE_READ, 282 LP_TEX_LAYOUT_LINEAR); 283 row_stride[j] = lp_tex->row_stride[j]; 284 img_stride[j] = lp_tex->img_stride[j]; 285 } 286 } 287 else { 288 /* display target texture/surface */ 289 /* 290 * XXX: Where should this be unmapped? 291 */ 292 struct llvmpipe_screen *screen = llvmpipe_screen(tex->screen); 293 struct sw_winsys *winsys = screen->winsys; 294 data[0] = winsys->displaytarget_map(winsys, lp_tex->dt, 295 PIPE_TRANSFER_READ); 296 row_stride[0] = lp_tex->row_stride[0]; 297 img_stride[0] = lp_tex->img_stride[0]; 298 assert(data[0]); 299 } 300 draw_set_mapped_texture(lp->draw, 301 PIPE_SHADER_VERTEX, 302 i, 303 tex->width0, tex->height0, tex->depth0, 304 view->u.tex.first_level, tex->last_level, 305 row_stride, img_stride, data); 306 } 307 } 308 } 309 310 void 311 llvmpipe_cleanup_vertex_sampling(struct llvmpipe_context *ctx) 312 { 313 unsigned i; 314 for (i = 0; i < Elements(ctx->mapped_vs_tex); i++) { 315 pipe_resource_reference(&ctx->mapped_vs_tex[i], NULL); 316 } 317 } 318 319 void 320 llvmpipe_init_sampler_funcs(struct llvmpipe_context *llvmpipe) 321 { 322 llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state; 323 324 llvmpipe->pipe.bind_fragment_sampler_states = llvmpipe_bind_fragment_sampler_states; 325 llvmpipe->pipe.bind_vertex_sampler_states = llvmpipe_bind_vertex_sampler_states; 326 llvmpipe->pipe.bind_geometry_sampler_states = llvmpipe_bind_geometry_sampler_states; 327 llvmpipe->pipe.set_fragment_sampler_views = llvmpipe_set_fragment_sampler_views; 328 llvmpipe->pipe.set_vertex_sampler_views = llvmpipe_set_vertex_sampler_views; 329 llvmpipe->pipe.set_geometry_sampler_views = llvmpipe_set_geometry_sampler_views; 330 llvmpipe->pipe.create_sampler_view = llvmpipe_create_sampler_view; 331 llvmpipe->pipe.sampler_view_destroy = llvmpipe_sampler_view_destroy; 332 llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state; 333 } 334
