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 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
32 #include "pipe/p_screen.h"
33 #include "util/u_inlines.h"
34 #include "util/u_blit.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_screen * pscreen,const unsigned int * enabled)42 pp_init(struct pipe_screen *pscreen, const unsigned int *enabled)
43 {
44
45 unsigned int curpos = 0, i, tmp_req = 0;
46 struct pp_queue_t *ppq;
47 pp_func *tmp_q;
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 curpos++;
55 }
56 if (!curpos)
57 return NULL;
58
59 ppq = CALLOC(1, sizeof(struct pp_queue_t));
60 tmp_q = CALLOC(curpos, sizeof(pp_func));
61 ppq->shaders = CALLOC(curpos, sizeof(void *));
62 ppq->verts = CALLOC(curpos, sizeof(unsigned int));
63
64 if (!tmp_q || !ppq || !ppq->shaders || !ppq->verts)
65 goto error;
66
67 ppq->p = pp_init_prog(ppq, pscreen);
68 if (!ppq->p)
69 goto error;
70
71 /* Add the enabled filters to the queue, in order */
72 curpos = 0;
73 ppq->pp_queue = tmp_q;
74 for (i = 0; i < PP_FILTERS; i++) {
75 if (enabled[i]) {
76 ppq->pp_queue[curpos] = pp_filters[i].main;
77 tmp_req = MAX2(tmp_req, pp_filters[i].inner_tmps);
78
79 if (pp_filters[i].shaders) {
80 ppq->shaders[curpos] =
81 CALLOC(pp_filters[i].shaders + 1, sizeof(void *));
82 ppq->verts[curpos] = pp_filters[i].verts;
83 if (!ppq->shaders[curpos])
84 goto error;
85 }
86 pp_filters[i].init(ppq, curpos, enabled[i]);
87
88 curpos++;
89 }
90 }
91
92 ppq->p->blitctx = util_create_blit(ppq->p->pipe, ppq->p->cso);
93 if (!ppq->p->blitctx)
94 goto error;
95
96 ppq->n_filters = curpos;
97 ppq->n_tmp = (curpos > 2 ? 2 : 1);
98 ppq->n_inner_tmp = tmp_req;
99
100 ppq->fbos_init = false;
101
102 for (i = 0; i < curpos; i++)
103 ppq->shaders[i][0] = ppq->p->passvs;
104
105 pp_debug("Queue successfully allocated. %u filter(s).\n", curpos);
106
107 return ppq;
108
109 error:
110 pp_debug("Error setting up pp\n");
111
112 if (ppq)
113 FREE(ppq->p);
114 FREE(ppq);
115 FREE(tmp_q);
116
117 return NULL;
118 }
119
120 /** Free any allocated FBOs (temp buffers). Called after resizing for example. */
121 void
pp_free_fbos(struct pp_queue_t * ppq)122 pp_free_fbos(struct pp_queue_t *ppq)
123 {
124
125 unsigned int i;
126
127 if (!ppq->fbos_init)
128 return;
129
130 for (i = 0; i < ppq->n_tmp; i++) {
131 pipe_surface_reference(&ppq->tmps[i], NULL);
132 pipe_resource_reference(&ppq->tmp[i], NULL);
133 }
134 for (i = 0; i < ppq->n_inner_tmp; i++) {
135 pipe_surface_reference(&ppq->inner_tmps[i], NULL);
136 pipe_resource_reference(&ppq->inner_tmp[i], NULL);
137 }
138 pipe_surface_reference(&ppq->stencils, NULL);
139 pipe_resource_reference(&ppq->stencil, NULL);
140
141 ppq->fbos_init = false;
142 }
143
144 /** Free the pp queue. Called on context termination. */
145 void
pp_free(struct pp_queue_t * ppq)146 pp_free(struct pp_queue_t *ppq)
147 {
148
149 unsigned int i, j;
150
151 pp_free_fbos(ppq);
152
153 util_destroy_blit(ppq->p->blitctx);
154
155 cso_set_sampler_views(ppq->p->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
156 cso_release_all(ppq->p->cso);
157
158 for (i = 0; i < ppq->n_filters; i++) {
159 for (j = 0; j < PP_MAX_PASSES && ppq->shaders[i][j]; j++) {
160 if (j >= ppq->verts[i]) {
161 ppq->p->pipe->delete_fs_state(ppq->p->pipe, ppq->shaders[i][j]);
162 ppq->shaders[i][j] = NULL;
163 }
164 else if (ppq->shaders[i][j] != ppq->p->passvs) {
165 ppq->p->pipe->delete_vs_state(ppq->p->pipe, ppq->shaders[i][j]);
166 ppq->shaders[i][j] = NULL;
167 }
168 }
169 }
170
171 cso_destroy_context(ppq->p->cso);
172 ppq->p->pipe->destroy(ppq->p->pipe);
173
174 FREE(ppq->p);
175 FREE(ppq->pp_queue);
176 FREE(ppq);
177
178 pp_debug("Queue taken down.\n");
179 }
180
181 /** Internal debug function. Should be available to final users. */
182 void
pp_debug(const char * fmt,...)183 pp_debug(const char *fmt, ...)
184 {
185 va_list ap;
186
187 if (!debug_get_bool_option("PP_DEBUG", FALSE))
188 return;
189
190 va_start(ap, fmt);
191 _debug_vprintf(fmt, ap);
192 va_end(ap);
193 }
194
195 /** Allocate the temp FBOs. Called on makecurrent and resize. */
196 void
pp_init_fbos(struct pp_queue_t * ppq,unsigned int w,unsigned int h)197 pp_init_fbos(struct pp_queue_t *ppq, unsigned int w,
198 unsigned int h)
199 {
200
201 struct program *p = ppq->p; /* The lazy will inherit the earth */
202
203 unsigned int i;
204 struct pipe_resource tmp_res;
205
206 if (ppq->fbos_init)
207 return;
208
209 pp_debug("Initializing FBOs, size %ux%u\n", w, h);
210 pp_debug("Requesting %u temps and %u inner temps\n", ppq->n_tmp,
211 ppq->n_inner_tmp);
212
213 memset(&tmp_res, 0, sizeof(tmp_res));
214 tmp_res.target = PIPE_TEXTURE_2D;
215 tmp_res.format = p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
216 tmp_res.width0 = w;
217 tmp_res.height0 = h;
218 tmp_res.depth0 = 1;
219 tmp_res.array_size = 1;
220 tmp_res.last_level = 0;
221 tmp_res.bind = p->surf.usage = PIPE_BIND_RENDER_TARGET;
222
223 if (!p->screen->is_format_supported(p->screen, tmp_res.format,
224 tmp_res.target, 1, tmp_res.bind))
225 pp_debug("Temp buffers' format fail\n");
226
227 for (i = 0; i < ppq->n_tmp; i++) {
228 ppq->tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
229 ppq->tmps[i] = p->pipe->create_surface(p->pipe, ppq->tmp[i], &p->surf);
230
231 if (!ppq->tmp[i] || !ppq->tmps[i])
232 goto error;
233 }
234
235 for (i = 0; i < ppq->n_inner_tmp; i++) {
236 ppq->inner_tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
237 ppq->inner_tmps[i] = p->pipe->create_surface(p->pipe,
238 ppq->inner_tmp[i],
239 &p->surf);
240
241 if (!ppq->inner_tmp[i] || !ppq->inner_tmps[i])
242 goto error;
243 }
244
245 tmp_res.bind = p->surf.usage = PIPE_BIND_DEPTH_STENCIL;
246
247 tmp_res.format = p->surf.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
248
249 if (!p->screen->is_format_supported(p->screen, tmp_res.format,
250 tmp_res.target, 1, tmp_res.bind)) {
251
252 tmp_res.format = p->surf.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
253
254 if (!p->screen->is_format_supported(p->screen, tmp_res.format,
255 tmp_res.target, 1, tmp_res.bind))
256 pp_debug("Temp Sbuffer format fail\n");
257 }
258
259 ppq->stencil = p->screen->resource_create(p->screen, &tmp_res);
260 ppq->stencils = p->pipe->create_surface(p->pipe, ppq->stencil, &p->surf);
261 if (!ppq->stencil || !ppq->stencils)
262 goto error;
263
264
265 p->framebuffer.width = w;
266 p->framebuffer.height = h;
267
268 p->viewport.scale[0] = p->viewport.translate[0] = (float) w / 2.0;
269 p->viewport.scale[1] = p->viewport.translate[1] = (float) h / 2.0;
270 p->viewport.scale[3] = 1.0f;
271 p->viewport.translate[3] = 0.0f;
272
273 ppq->fbos_init = true;
274
275 return;
276
277 error:
278 pp_debug("Failed to allocate temp buffers!\n");
279 }
280