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_memory.h" 33 #include "util/u_inlines.h" 34 #include "util/u_format.h" 35 36 #include "draw/draw_context.h" 37 38 #include "sp_context.h" 39 #include "sp_state.h" 40 #include "sp_texture.h" 41 #include "sp_tex_sample.h" 42 #include "sp_tex_tile_cache.h" 43 #include "sp_screen.h" 44 #include "state_tracker/sw_winsys.h" 45 46 47 /** 48 * Bind a range [start, start+num-1] of samplers for a shader stage. 49 */ 50 static void 51 softpipe_bind_sampler_states(struct pipe_context *pipe, 52 enum pipe_shader_type shader, 53 unsigned start, 54 unsigned num, 55 void **samplers) 56 { 57 struct softpipe_context *softpipe = softpipe_context(pipe); 58 unsigned i; 59 60 assert(shader < PIPE_SHADER_TYPES); 61 assert(start + num <= ARRAY_SIZE(softpipe->samplers[shader])); 62 63 draw_flush(softpipe->draw); 64 65 /* set the new samplers */ 66 for (i = 0; i < num; i++) { 67 softpipe->samplers[shader][start + i] = samplers[i]; 68 } 69 70 /* find highest non-null samplers[] entry */ 71 { 72 unsigned j = MAX2(softpipe->num_samplers[shader], start + num); 73 while (j > 0 && softpipe->samplers[shader][j - 1] == NULL) 74 j--; 75 softpipe->num_samplers[shader] = j; 76 } 77 78 if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { 79 draw_set_samplers(softpipe->draw, 80 shader, 81 softpipe->samplers[shader], 82 softpipe->num_samplers[shader]); 83 } 84 85 softpipe->dirty |= SP_NEW_SAMPLER; 86 } 87 88 89 static void 90 softpipe_sampler_view_destroy(struct pipe_context *pipe, 91 struct pipe_sampler_view *view) 92 { 93 pipe_resource_reference(&view->texture, NULL); 94 FREE(view); 95 } 96 97 98 void 99 softpipe_set_sampler_views(struct pipe_context *pipe, 100 enum pipe_shader_type shader, 101 unsigned start, 102 unsigned num, 103 struct pipe_sampler_view **views) 104 { 105 struct softpipe_context *softpipe = softpipe_context(pipe); 106 uint i; 107 108 assert(shader < PIPE_SHADER_TYPES); 109 assert(start + num <= ARRAY_SIZE(softpipe->sampler_views[shader])); 110 111 draw_flush(softpipe->draw); 112 113 /* set the new sampler views */ 114 for (i = 0; i < num; i++) { 115 struct sp_sampler_view *sp_sviewsrc; 116 struct sp_sampler_view *sp_sviewdst = 117 &softpipe->tgsi.sampler[shader]->sp_sview[start + i]; 118 struct pipe_sampler_view **pview = &softpipe->sampler_views[shader][start + i]; 119 pipe_sampler_view_reference(pview, views[i]); 120 sp_tex_tile_cache_set_sampler_view(softpipe->tex_cache[shader][start + i], 121 views[i]); 122 /* 123 * We don't really have variants, however some bits are different per shader, 124 * so just copy? 125 */ 126 sp_sviewsrc = (struct sp_sampler_view *)*pview; 127 if (sp_sviewsrc) { 128 memcpy(sp_sviewdst, sp_sviewsrc, sizeof(*sp_sviewsrc)); 129 sp_sviewdst->compute_lambda = softpipe_get_lambda_func(&sp_sviewdst->base, shader); 130 sp_sviewdst->cache = softpipe->tex_cache[shader][start + i]; 131 } 132 else { 133 memset(sp_sviewdst, 0, sizeof(*sp_sviewsrc)); 134 } 135 } 136 137 138 /* find highest non-null sampler_views[] entry */ 139 { 140 unsigned j = MAX2(softpipe->num_sampler_views[shader], start + num); 141 while (j > 0 && softpipe->sampler_views[shader][j - 1] == NULL) 142 j--; 143 softpipe->num_sampler_views[shader] = j; 144 } 145 146 if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) { 147 draw_set_sampler_views(softpipe->draw, 148 shader, 149 softpipe->sampler_views[shader], 150 softpipe->num_sampler_views[shader]); 151 } 152 153 softpipe->dirty |= SP_NEW_TEXTURE; 154 } 155 156 157 static void 158 softpipe_delete_sampler_state(struct pipe_context *pipe, 159 void *sampler) 160 { 161 FREE( sampler ); 162 } 163 164 165 static void 166 prepare_shader_sampling( 167 struct softpipe_context *sp, 168 unsigned num, 169 struct pipe_sampler_view **views, 170 unsigned shader_type, 171 struct pipe_resource *mapped_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS]) 172 { 173 174 unsigned i; 175 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; 176 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; 177 uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]; 178 const void *addr; 179 180 assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS); 181 if (!num) 182 return; 183 184 for (i = 0; i < PIPE_MAX_SHADER_SAMPLER_VIEWS; i++) { 185 struct pipe_sampler_view *view = i < num ? views[i] : NULL; 186 187 if (view) { 188 struct pipe_resource *tex = view->texture; 189 struct softpipe_resource *sp_tex = softpipe_resource(tex); 190 unsigned width0 = tex->width0; 191 unsigned num_layers = tex->depth0; 192 unsigned first_level = 0; 193 unsigned last_level = 0; 194 195 /* We're referencing the texture's internal data, so save a 196 * reference to it. 197 */ 198 pipe_resource_reference(&mapped_tex[i], tex); 199 200 if (!sp_tex->dt) { 201 /* regular texture - setup array of mipmap level offsets */ 202 MAYBE_UNUSED struct pipe_resource *res = view->texture; 203 int j; 204 205 if (view->target != PIPE_BUFFER) { 206 first_level = view->u.tex.first_level; 207 last_level = view->u.tex.last_level; 208 assert(first_level <= last_level); 209 assert(last_level <= res->last_level); 210 addr = sp_tex->data; 211 212 for (j = first_level; j <= last_level; j++) { 213 mip_offsets[j] = sp_tex->level_offset[j]; 214 row_stride[j] = sp_tex->stride[j]; 215 img_stride[j] = sp_tex->img_stride[j]; 216 } 217 if (tex->target == PIPE_TEXTURE_1D_ARRAY || 218 tex->target == PIPE_TEXTURE_2D_ARRAY || 219 tex->target == PIPE_TEXTURE_CUBE || 220 tex->target == PIPE_TEXTURE_CUBE_ARRAY) { 221 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1; 222 for (j = first_level; j <= last_level; j++) { 223 mip_offsets[j] += view->u.tex.first_layer * 224 sp_tex->img_stride[j]; 225 } 226 if (view->target == PIPE_TEXTURE_CUBE || 227 view->target == PIPE_TEXTURE_CUBE_ARRAY) { 228 assert(num_layers % 6 == 0); 229 } 230 assert(view->u.tex.first_layer <= view->u.tex.last_layer); 231 assert(view->u.tex.last_layer < res->array_size); 232 } 233 } 234 else { 235 unsigned view_blocksize = util_format_get_blocksize(view->format); 236 addr = sp_tex->data; 237 /* probably don't really need to fill that out */ 238 mip_offsets[0] = 0; 239 row_stride[0] = 0; 240 img_stride[0] = 0; 241 242 /* everything specified in number of elements here. */ 243 width0 = view->u.buf.size / view_blocksize; 244 addr = (uint8_t *)addr + view->u.buf.offset; 245 assert(view->u.buf.offset + view->u.buf.size <= res->width0); 246 } 247 } 248 else { 249 /* display target texture/surface */ 250 /* 251 * XXX: Where should this be unmapped? 252 */ 253 struct softpipe_screen *screen = softpipe_screen(tex->screen); 254 struct sw_winsys *winsys = screen->winsys; 255 addr = winsys->displaytarget_map(winsys, sp_tex->dt, 256 PIPE_TRANSFER_READ); 257 row_stride[0] = sp_tex->stride[0]; 258 img_stride[0] = sp_tex->img_stride[0]; 259 mip_offsets[0] = 0; 260 assert(addr); 261 } 262 draw_set_mapped_texture(sp->draw, 263 shader_type, 264 i, 265 width0, tex->height0, num_layers, 266 first_level, last_level, 267 addr, 268 row_stride, img_stride, mip_offsets); 269 } 270 } 271 } 272 273 274 /** 275 * Called during state validation when SP_NEW_TEXTURE is set. 276 */ 277 void 278 softpipe_prepare_vertex_sampling(struct softpipe_context *sp, 279 unsigned num, 280 struct pipe_sampler_view **views) 281 { 282 prepare_shader_sampling(sp, num, views, PIPE_SHADER_VERTEX, 283 sp->mapped_vs_tex); 284 } 285 286 void 287 softpipe_cleanup_vertex_sampling(struct softpipe_context *ctx) 288 { 289 unsigned i; 290 for (i = 0; i < ARRAY_SIZE(ctx->mapped_vs_tex); i++) { 291 pipe_resource_reference(&ctx->mapped_vs_tex[i], NULL); 292 } 293 } 294 295 296 /** 297 * Called during state validation when SP_NEW_TEXTURE is set. 298 */ 299 void 300 softpipe_prepare_geometry_sampling(struct softpipe_context *sp, 301 unsigned num, 302 struct pipe_sampler_view **views) 303 { 304 prepare_shader_sampling(sp, num, views, PIPE_SHADER_GEOMETRY, 305 sp->mapped_gs_tex); 306 } 307 308 void 309 softpipe_cleanup_geometry_sampling(struct softpipe_context *ctx) 310 { 311 unsigned i; 312 for (i = 0; i < ARRAY_SIZE(ctx->mapped_gs_tex); i++) { 313 pipe_resource_reference(&ctx->mapped_gs_tex[i], NULL); 314 } 315 } 316 317 318 void 319 softpipe_init_sampler_funcs(struct pipe_context *pipe) 320 { 321 pipe->create_sampler_state = softpipe_create_sampler_state; 322 pipe->bind_sampler_states = softpipe_bind_sampler_states; 323 pipe->delete_sampler_state = softpipe_delete_sampler_state; 324 325 pipe->create_sampler_view = softpipe_create_sampler_view; 326 pipe->set_sampler_views = softpipe_set_sampler_views; 327 pipe->sampler_view_destroy = softpipe_sampler_view_destroy; 328 } 329 330
