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
softpipe_bind_sampler_states(struct pipe_context * pipe,enum pipe_shader_type shader,unsigned start,unsigned num,void ** samplers)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
softpipe_sampler_view_destroy(struct pipe_context * pipe,struct pipe_sampler_view * view)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
softpipe_set_sampler_views(struct pipe_context * pipe,enum pipe_shader_type shader,unsigned start,unsigned num,struct pipe_sampler_view ** views)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
softpipe_delete_sampler_state(struct pipe_context * pipe,void * sampler)158 softpipe_delete_sampler_state(struct pipe_context *pipe,
159 void *sampler)
160 {
161 FREE( sampler );
162 }
163
164
165 static void
prepare_shader_sampling(struct softpipe_context * sp,unsigned num,struct pipe_sampler_view ** views,unsigned shader_type,struct pipe_resource * mapped_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS])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
softpipe_prepare_vertex_sampling(struct softpipe_context * sp,unsigned num,struct pipe_sampler_view ** views)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
softpipe_cleanup_vertex_sampling(struct softpipe_context * ctx)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
softpipe_prepare_geometry_sampling(struct softpipe_context * sp,unsigned num,struct pipe_sampler_view ** views)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
softpipe_cleanup_geometry_sampling(struct softpipe_context * ctx)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
softpipe_init_sampler_funcs(struct pipe_context * pipe)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