1 /**************************************************************************
2 *
3 * Copyright 2011 Lauri Kasanen
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 THE AUTHORS OR COPYRIGHT HOLDERS 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 #include "pipe/p_compiler.h"
29
30 #include "postprocess/filters.h"
31 #include "postprocess/pp_private.h"
32
33 #include "pipe/p_screen.h"
34 #include "util/u_inlines.h"
35 #include "util/u_math.h"
36 #include "util/u_debug.h"
37 #include "util/u_memory.h"
38 #include "cso_cache/cso_context.h"
39
40 /** Initialize the post-processing queue. */
41 struct pp_queue_t *
pp_init(struct pipe_context * pipe,const unsigned int * enabled,struct cso_context * cso)42 pp_init(struct pipe_context *pipe, const unsigned int *enabled,
43 struct cso_context *cso)
44 {
45 unsigned int num_filters = 0;
46 unsigned int curpos = 0, i, tmp_req = 0;
47 struct pp_queue_t *ppq;
48
49 pp_debug("Initializing the post-processing queue.\n");
50
51 /* How many filters were requested? */
52 for (i = 0; i < PP_FILTERS; i++) {
53 if (enabled[i])
54 num_filters++;
55 }
56 if (num_filters == 0)
57 return NULL;
58
59 ppq = CALLOC(1, sizeof(struct pp_queue_t));
60
61 if (!ppq) {
62 pp_debug("Unable to allocate memory for ppq.\n");
63 goto error;
64 }
65
66 ppq->pp_queue = CALLOC(num_filters, sizeof(pp_func));
67 if (ppq->pp_queue == NULL) {
68 pp_debug("Unable to allocate memory for pp_queue.\n");
69 goto error;
70 }
71
72 ppq->shaders = CALLOC(num_filters, sizeof(void *));
73 ppq->filters = CALLOC(num_filters, sizeof(unsigned int));
74
75 if ((ppq->shaders == NULL) ||
76 (ppq->filters == NULL)) {
77 pp_debug("Unable to allocate memory for shaders and filter arrays.\n");
78 goto error;
79 }
80
81 ppq->p = pp_init_prog(ppq, pipe, cso);
82 if (ppq->p == NULL) {
83 pp_debug("pp_init_prog returned NULL.\n");
84 goto error;
85 }
86
87 /* Add the enabled filters to the queue, in order */
88 curpos = 0;
89 for (i = 0; i < PP_FILTERS; i++) {
90 if (enabled[i]) {
91 ppq->pp_queue[curpos] = pp_filters[i].main;
92 tmp_req = MAX2(tmp_req, pp_filters[i].inner_tmps);
93 ppq->filters[curpos] = i;
94
95 if (pp_filters[i].shaders) {
96 ppq->shaders[curpos] =
97 CALLOC(pp_filters[i].shaders + 1, sizeof(void *));
98 if (!ppq->shaders[curpos]) {
99 pp_debug("Unable to allocate memory for shader list.\n");
100 goto error;
101 }
102 }
103
104 /* Call the initialization function for the filter. */
105 if (!pp_filters[i].init(ppq, curpos, enabled[i])) {
106 pp_debug("Initialization for filter %u failed.\n", i);
107 goto error;
108 }
109
110 curpos++;
111 }
112 }
113
114 ppq->n_filters = curpos;
115 ppq->n_tmp = (curpos > 2 ? 2 : 1);
116 ppq->n_inner_tmp = tmp_req;
117
118 ppq->fbos_init = false;
119
120 for (i = 0; i < curpos; i++)
121 ppq->shaders[i][0] = ppq->p->passvs;
122
123 pp_debug("Queue successfully allocated. %u filter(s).\n", curpos);
124
125 return ppq;
126
127 error:
128
129 if (ppq) {
130 /* Assign curpos, since we only need to destroy initialized filters. */
131 ppq->n_filters = curpos;
132
133 /* Call the common free function which must handle partial initialization. */
134 pp_free(ppq);
135 }
136
137 return NULL;
138 }
139
140 /** Free any allocated FBOs (temp buffers). Called after resizing for example. */
141 void
pp_free_fbos(struct pp_queue_t * ppq)142 pp_free_fbos(struct pp_queue_t *ppq)
143 {
144
145 unsigned int i;
146
147 if (!ppq->fbos_init)
148 return;
149
150 for (i = 0; i < ppq->n_tmp; i++) {
151 pipe_surface_reference(&ppq->tmps[i], NULL);
152 pipe_resource_reference(&ppq->tmp[i], NULL);
153 }
154 for (i = 0; i < ppq->n_inner_tmp; i++) {
155 pipe_surface_reference(&ppq->inner_tmps[i], NULL);
156 pipe_resource_reference(&ppq->inner_tmp[i], NULL);
157 }
158 pipe_surface_reference(&ppq->stencils, NULL);
159 pipe_resource_reference(&ppq->stencil, NULL);
160
161 ppq->fbos_init = false;
162 }
163
164 /**
165 * Free the pp queue. Called on context termination and failure in
166 * pp_init.
167 */
168 void
pp_free(struct pp_queue_t * ppq)169 pp_free(struct pp_queue_t *ppq)
170 {
171 unsigned int i, j;
172
173 if (!ppq)
174 return;
175
176 pp_free_fbos(ppq);
177
178 if (ppq->p) {
179 if (ppq->p->pipe && ppq->filters && ppq->shaders) {
180 for (i = 0; i < ppq->n_filters; i++) {
181 unsigned int filter = ppq->filters[i];
182
183 if (ppq->shaders[i] == NULL) {
184 continue;
185 }
186
187 /*
188 * Common shader destruction code for all postprocessing
189 * filters.
190 */
191 for (j = 0; j < pp_filters[filter].shaders; j++) {
192 if (ppq->shaders[i][j] == NULL) {
193 /* We reached the end of initialized shaders. */
194 break;
195 }
196
197 if (ppq->shaders[i][j] == ppq->p->passvs) {
198 continue;
199 }
200
201 assert(ppq);
202 assert(ppq->p);
203 assert(ppq->p->pipe);
204
205 if (j >= pp_filters[filter].verts) {
206 assert(ppq->p->pipe->delete_fs_state);
207 ppq->p->pipe->delete_fs_state(ppq->p->pipe,
208 ppq->shaders[i][j]);
209 ppq->shaders[i][j] = NULL;
210 } else {
211 assert(ppq->p->pipe->delete_vs_state);
212 ppq->p->pipe->delete_vs_state(ppq->p->pipe,
213 ppq->shaders[i][j]);
214 ppq->shaders[i][j] = NULL;
215 }
216 }
217
218 /* Finally call each filter type's free functionality. */
219 pp_filters[filter].free(ppq, i);
220 }
221 }
222
223 FREE(ppq->p);
224 }
225
226 /*
227 * Handle partial initialization for common resource destruction
228 * in the create path.
229 */
230 FREE(ppq->filters);
231 FREE(ppq->shaders);
232 FREE(ppq->pp_queue);
233
234 FREE(ppq);
235
236 pp_debug("Queue taken down.\n");
237 }
238
239 /** Internal debug function. Should be available to final users. */
240 void
pp_debug(const char * fmt,...)241 pp_debug(const char *fmt, ...)
242 {
243 va_list ap;
244
245 if (!debug_get_bool_option("PP_DEBUG", FALSE))
246 return;
247
248 va_start(ap, fmt);
249 _debug_vprintf(fmt, ap);
250 va_end(ap);
251 }
252
253 /** Allocate the temp FBOs. Called on makecurrent and resize. */
254 void
pp_init_fbos(struct pp_queue_t * ppq,unsigned int w,unsigned int h)255 pp_init_fbos(struct pp_queue_t *ppq, unsigned int w,
256 unsigned int h)
257 {
258
259 struct pp_program *p = ppq->p; /* The lazy will inherit the earth */
260
261 unsigned int i;
262 struct pipe_resource tmp_res;
263
264 if (ppq->fbos_init)
265 return;
266
267 pp_debug("Initializing FBOs, size %ux%u\n", w, h);
268 pp_debug("Requesting %u temps and %u inner temps\n", ppq->n_tmp,
269 ppq->n_inner_tmp);
270
271 memset(&tmp_res, 0, sizeof(tmp_res));
272 tmp_res.target = PIPE_TEXTURE_2D;
273 tmp_res.format = p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
274 tmp_res.width0 = w;
275 tmp_res.height0 = h;
276 tmp_res.depth0 = 1;
277 tmp_res.array_size = 1;
278 tmp_res.last_level = 0;
279 tmp_res.bind = PIPE_BIND_RENDER_TARGET;
280
281 if (!p->screen->is_format_supported(p->screen, tmp_res.format,
282 tmp_res.target, 1, 1, tmp_res.bind))
283 pp_debug("Temp buffers' format fail\n");
284
285 for (i = 0; i < ppq->n_tmp; i++) {
286 ppq->tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
287 ppq->tmps[i] = p->pipe->create_surface(p->pipe, ppq->tmp[i], &p->surf);
288
289 if (!ppq->tmp[i] || !ppq->tmps[i])
290 goto error;
291 }
292
293 for (i = 0; i < ppq->n_inner_tmp; i++) {
294 ppq->inner_tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
295 ppq->inner_tmps[i] = p->pipe->create_surface(p->pipe,
296 ppq->inner_tmp[i],
297 &p->surf);
298
299 if (!ppq->inner_tmp[i] || !ppq->inner_tmps[i])
300 goto error;
301 }
302
303 tmp_res.bind = PIPE_BIND_DEPTH_STENCIL;
304
305 tmp_res.format = p->surf.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
306
307 if (!p->screen->is_format_supported(p->screen, tmp_res.format,
308 tmp_res.target, 1, 1, tmp_res.bind)) {
309
310 tmp_res.format = p->surf.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
311
312 if (!p->screen->is_format_supported(p->screen, tmp_res.format,
313 tmp_res.target, 1, 1, tmp_res.bind))
314 pp_debug("Temp Sbuffer format fail\n");
315 }
316
317 ppq->stencil = p->screen->resource_create(p->screen, &tmp_res);
318 ppq->stencils = p->pipe->create_surface(p->pipe, ppq->stencil, &p->surf);
319 if (!ppq->stencil || !ppq->stencils)
320 goto error;
321
322 p->framebuffer.width = w;
323 p->framebuffer.height = h;
324
325 p->viewport.scale[0] = p->viewport.translate[0] = (float) w / 2.0f;
326 p->viewport.scale[1] = p->viewport.translate[1] = (float) h / 2.0f;
327
328 ppq->fbos_init = true;
329
330 return;
331
332 error:
333 pp_debug("Failed to allocate temp buffers!\n");
334 }
335