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 "postprocess.h"
29 #include "postprocess/pp_filters.h"
30 #include "postprocess/pp_private.h"
31
32 #include "frontend/api.h"
33 #include "util/u_inlines.h"
34 #include "util/u_sampler.h"
35
36 #include "tgsi/tgsi_parse.h"
37
38
39 void
pp_blit(struct pipe_context * pipe,struct pipe_resource * src_tex,int srcX0,int srcY0,int srcX1,int srcY1,int srcZ0,struct pipe_surface * dst,int dstX0,int dstY0,int dstX1,int dstY1)40 pp_blit(struct pipe_context *pipe,
41 struct pipe_resource *src_tex,
42 int srcX0, int srcY0,
43 int srcX1, int srcY1,
44 int srcZ0,
45 struct pipe_surface *dst,
46 int dstX0, int dstY0,
47 int dstX1, int dstY1)
48 {
49 struct pipe_blit_info blit;
50
51 memset(&blit, 0, sizeof(blit));
52
53 blit.src.resource = src_tex;
54 blit.src.level = 0;
55 blit.src.format = src_tex->format;
56 blit.src.box.x = srcX0;
57 blit.src.box.y = srcY0;
58 blit.src.box.z = srcZ0;
59 blit.src.box.width = srcX1 - srcX0;
60 blit.src.box.height = srcY1 - srcY0;
61 blit.src.box.depth = 1;
62
63 blit.dst.resource = dst->texture;
64 blit.dst.level = dst->u.tex.level;
65 blit.dst.format = dst->format;
66 blit.dst.box.x = dstX0;
67 blit.dst.box.y = dstY0;
68 blit.dst.box.z = 0;
69 blit.dst.box.width = dstX1 - dstX0;
70 blit.dst.box.height = dstY1 - dstY0;
71 blit.dst.box.depth = 1;
72
73 blit.mask = PIPE_MASK_RGBA;
74
75 pipe->blit(pipe, &blit);
76 }
77
78 /**
79 * Main run function of the PP queue. Called on swapbuffers/flush.
80 *
81 * Runs all requested filters in order and handles shuffling the temp
82 * buffers in between.
83 */
84 void
pp_run(struct pp_queue_t * ppq,struct pipe_resource * in,struct pipe_resource * out,struct pipe_resource * indepth)85 pp_run(struct pp_queue_t *ppq, struct pipe_resource *in,
86 struct pipe_resource *out, struct pipe_resource *indepth)
87 {
88 struct pipe_resource *refin = NULL, *refout = NULL;
89 unsigned int i;
90 struct cso_context *cso = ppq->p->cso;
91
92 if (ppq->n_filters == 0)
93 return;
94
95 assert(ppq->pp_queue);
96 assert(ppq->tmp[0]);
97
98 if (in->width0 != ppq->p->framebuffer.width ||
99 in->height0 != ppq->p->framebuffer.height) {
100 pp_debug("Resizing the temp pp buffers\n");
101 pp_free_fbos(ppq);
102 pp_init_fbos(ppq, in->width0, in->height0);
103 }
104
105 if (in == out && ppq->n_filters == 1) {
106 /* Make a copy of in to tmp[0] in this case. */
107 unsigned int w = ppq->p->framebuffer.width;
108 unsigned int h = ppq->p->framebuffer.height;
109
110
111 pp_blit(ppq->p->pipe, in, 0, 0,
112 w, h, 0, ppq->tmps[0],
113 0, 0, w, h);
114
115 in = ppq->tmp[0];
116 }
117
118 /* save state (restored below) */
119 cso_save_state(cso, (CSO_BIT_BLEND |
120 CSO_BIT_DEPTH_STENCIL_ALPHA |
121 CSO_BIT_FRAGMENT_SHADER |
122 CSO_BIT_FRAMEBUFFER |
123 CSO_BIT_TESSCTRL_SHADER |
124 CSO_BIT_TESSEVAL_SHADER |
125 CSO_BIT_GEOMETRY_SHADER |
126 CSO_BIT_RASTERIZER |
127 CSO_BIT_SAMPLE_MASK |
128 CSO_BIT_MIN_SAMPLES |
129 CSO_BIT_FRAGMENT_SAMPLERS |
130 CSO_BIT_STENCIL_REF |
131 CSO_BIT_STREAM_OUTPUTS |
132 CSO_BIT_VERTEX_ELEMENTS |
133 CSO_BIT_VERTEX_SHADER |
134 CSO_BIT_VIEWPORT |
135 CSO_BIT_PAUSE_QUERIES |
136 CSO_BIT_RENDER_CONDITION));
137
138 /* set default state */
139 cso_set_sample_mask(cso, ~0);
140 cso_set_min_samples(cso, 1);
141 cso_set_stream_outputs(cso, 0, NULL, NULL);
142 cso_set_tessctrl_shader_handle(cso, NULL);
143 cso_set_tesseval_shader_handle(cso, NULL);
144 cso_set_geometry_shader_handle(cso, NULL);
145 cso_set_render_condition(cso, NULL, FALSE, 0);
146
147 // Kept only for this frame.
148 pipe_resource_reference(&ppq->depth, indepth);
149 pipe_resource_reference(&refin, in);
150 pipe_resource_reference(&refout, out);
151
152 switch (ppq->n_filters) {
153 case 0:
154 /* Failsafe, but never reached. */
155 break;
156 case 1: /* No temp buf */
157 ppq->pp_queue[0] (ppq, in, out, 0);
158 break;
159 case 2: /* One temp buf */
160
161 ppq->pp_queue[0] (ppq, in, ppq->tmp[0], 0);
162 ppq->pp_queue[1] (ppq, ppq->tmp[0], out, 1);
163
164 break;
165 default: /* Two temp bufs */
166 assert(ppq->tmp[1]);
167 ppq->pp_queue[0] (ppq, in, ppq->tmp[0], 0);
168
169 for (i = 1; i < (ppq->n_filters - 1); i++) {
170 if (i % 2 == 0)
171 ppq->pp_queue[i] (ppq, ppq->tmp[1], ppq->tmp[0], i);
172
173 else
174 ppq->pp_queue[i] (ppq, ppq->tmp[0], ppq->tmp[1], i);
175 }
176
177 if (i % 2 == 0)
178 ppq->pp_queue[i] (ppq, ppq->tmp[1], out, i);
179
180 else
181 ppq->pp_queue[i] (ppq, ppq->tmp[0], out, i);
182
183 break;
184 }
185
186 /* restore state we changed */
187 cso_restore_state(cso, CSO_UNBIND_FS_SAMPLERVIEWS |
188 CSO_UNBIND_FS_IMAGE0 |
189 CSO_UNBIND_VS_CONSTANTS |
190 CSO_UNBIND_FS_CONSTANTS |
191 CSO_UNBIND_VERTEX_BUFFER0);
192
193 /* restore states not restored by cso */
194 if (ppq->p->st) {
195 ppq->p->st->invalidate_state(ppq->p->st,
196 ST_INVALIDATE_FS_SAMPLER_VIEWS |
197 ST_INVALIDATE_FS_CONSTBUF0 |
198 ST_INVALIDATE_VS_CONSTBUF0 |
199 ST_INVALIDATE_VERTEX_BUFFERS);
200 }
201
202 pipe_resource_reference(&ppq->depth, NULL);
203 pipe_resource_reference(&refin, NULL);
204 pipe_resource_reference(&refout, NULL);
205 }
206
207
208 /* Utility functions for the filters. You're not forced to use these if */
209 /* your filter is more complicated. */
210
211 /** Setup this resource as the filter input. */
212 void
pp_filter_setup_in(struct pp_program * p,struct pipe_resource * in)213 pp_filter_setup_in(struct pp_program *p, struct pipe_resource *in)
214 {
215 struct pipe_sampler_view v_tmp;
216 u_sampler_view_default_template(&v_tmp, in, in->format);
217 p->view = p->pipe->create_sampler_view(p->pipe, in, &v_tmp);
218 }
219
220 /** Setup this resource as the filter output. */
221 void
pp_filter_setup_out(struct pp_program * p,struct pipe_resource * out)222 pp_filter_setup_out(struct pp_program *p, struct pipe_resource *out)
223 {
224 p->surf.format = out->format;
225
226 p->framebuffer.cbufs[0] = p->pipe->create_surface(p->pipe, out, &p->surf);
227 }
228
229 /** Clean up the input and output set with the above. */
230 void
pp_filter_end_pass(struct pp_program * p)231 pp_filter_end_pass(struct pp_program *p)
232 {
233 pipe_surface_reference(&p->framebuffer.cbufs[0], NULL);
234 pipe_sampler_view_reference(&p->view, NULL);
235 }
236
237 /**
238 * Convert the TGSI assembly to a runnable shader.
239 *
240 * We need not care about geometry shaders. All we have is screen quads.
241 */
242 void *
pp_tgsi_to_state(struct pipe_context * pipe,const char * text,bool isvs,const char * name)243 pp_tgsi_to_state(struct pipe_context *pipe, const char *text, bool isvs,
244 const char *name)
245 {
246 struct pipe_shader_state state;
247 struct tgsi_token *tokens = NULL;
248 void *ret_state = NULL;
249
250 /*
251 * Allocate temporary token storage. State creation will duplicate
252 * tokens so we must free them on exit.
253 */
254 tokens = tgsi_alloc_tokens(PP_MAX_TOKENS);
255
256 if (!tokens) {
257 pp_debug("Failed to allocate temporary token storage.\n");
258 return NULL;
259 }
260
261 if (tgsi_text_translate(text, tokens, PP_MAX_TOKENS) == FALSE) {
262 _debug_printf("pp: Failed to translate a shader for %s\n", name);
263 return NULL;
264 }
265
266 pipe_shader_state_from_tgsi(&state, tokens);
267
268 if (isvs) {
269 ret_state = pipe->create_vs_state(pipe, &state);
270 FREE(tokens);
271 } else {
272 ret_state = pipe->create_fs_state(pipe, &state);
273 FREE(tokens);
274 }
275
276 return ret_state;
277 }
278
279 /** Setup misc state for the filter. */
280 void
pp_filter_misc_state(struct pp_program * p)281 pp_filter_misc_state(struct pp_program *p)
282 {
283 cso_set_blend(p->cso, &p->blend);
284 cso_set_depth_stencil_alpha(p->cso, &p->depthstencil);
285 cso_set_rasterizer(p->cso, &p->rasterizer);
286 cso_set_viewport(p->cso, &p->viewport);
287
288 cso_set_vertex_elements(p->cso, &p->velem);
289 }
290
291 /** Draw with the filter to the set output. */
292 void
pp_filter_draw(struct pp_program * p)293 pp_filter_draw(struct pp_program *p)
294 {
295 util_draw_vertex_buffer(p->pipe, p->cso, p->vbuf, 0, 0,
296 PIPE_PRIM_QUADS, 4, 2);
297 }
298
299 /** Set the framebuffer as active. */
300 void
pp_filter_set_fb(struct pp_program * p)301 pp_filter_set_fb(struct pp_program *p)
302 {
303 cso_set_framebuffer(p->cso, &p->framebuffer);
304 }
305
306 /** Set the framebuffer as active and clear it. */
307 void
pp_filter_set_clear_fb(struct pp_program * p)308 pp_filter_set_clear_fb(struct pp_program *p)
309 {
310 cso_set_framebuffer(p->cso, &p->framebuffer);
311 p->pipe->clear(p->pipe, PIPE_CLEAR_COLOR0, NULL, &p->clear_color, 0, 0);
312 }
313