1 /**************************************************************************
2 *
3 * Copyright 2013 Grigori Goronzy <greg@chown.ath.cx>.
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 TUNGSTEN GRAPHICS 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 /*
29 * References:
30 *
31 * Lin, S. F., Chang, Y. L., & Chen, L. G. (2003).
32 * Motion adaptive interpolation with horizontal motion detection for deinterlacing.
33 * Consumer Electronics, IEEE Transactions on, 49(4), 1256-1265.
34 *
35 * Pei-Yin, C. H. E. N., & Yao-Hsien, L. A. I. (2007).
36 * A low-complexity interpolation method for deinterlacing.
37 * IEICE transactions on information and systems, 90(2), 606-608.
38 *
39 */
40
41 #include <stdio.h>
42
43 #include "pipe/p_context.h"
44
45 #include "tgsi/tgsi_ureg.h"
46
47 #include "util/u_draw.h"
48 #include "util/u_memory.h"
49 #include "util/u_math.h"
50 #include "util/format/u_format.h"
51
52 #include "vl_types.h"
53 #include "vl_video_buffer.h"
54 #include "vl_vertex_buffers.h"
55 #include "vl_deint_filter.h"
56
57 enum VS_OUTPUT
58 {
59 VS_O_VPOS = 0,
60 VS_O_VTEX = 0
61 };
62
63 static void *
create_vert_shader(struct vl_deint_filter * filter)64 create_vert_shader(struct vl_deint_filter *filter)
65 {
66 struct ureg_program *shader;
67 struct ureg_src i_vpos;
68 struct ureg_dst o_vpos, o_vtex;
69
70 shader = ureg_create(PIPE_SHADER_VERTEX);
71 if (!shader)
72 return NULL;
73
74 i_vpos = ureg_DECL_vs_input(shader, 0);
75 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS);
76 o_vtex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX);
77
78 ureg_MOV(shader, o_vpos, i_vpos);
79 ureg_MOV(shader, o_vtex, i_vpos);
80
81 ureg_END(shader);
82
83 return ureg_create_shader_and_destroy(shader, filter->pipe);
84 }
85
86 static void *
create_copy_frag_shader(struct vl_deint_filter * filter,unsigned field)87 create_copy_frag_shader(struct vl_deint_filter *filter, unsigned field)
88 {
89 struct ureg_program *shader;
90 struct ureg_src i_vtex;
91 struct ureg_src sampler;
92 struct ureg_dst o_fragment;
93 struct ureg_dst t_tex;
94
95 shader = ureg_create(PIPE_SHADER_FRAGMENT);
96 if (!shader) {
97 return NULL;
98 }
99 t_tex = ureg_DECL_temporary(shader);
100
101 i_vtex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
102 sampler = ureg_DECL_sampler(shader, 2);
103 o_fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
104
105 ureg_MOV(shader, t_tex, i_vtex);
106 if (field) {
107 ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
108 ureg_imm4f(shader, 0, 0, 1.0f, 0));
109 } else {
110 ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
111 ureg_imm1f(shader, 0));
112 }
113
114 ureg_TEX(shader, o_fragment, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_tex), sampler);
115
116 ureg_release_temporary(shader, t_tex);
117 ureg_END(shader);
118
119 return ureg_create_shader_and_destroy(shader, filter->pipe);
120 }
121
122 static void *
create_deint_frag_shader(struct vl_deint_filter * filter,unsigned field,struct vertex2f * sizes,bool spatial_filter)123 create_deint_frag_shader(struct vl_deint_filter *filter, unsigned field,
124 struct vertex2f *sizes, bool spatial_filter)
125 {
126 struct ureg_program *shader;
127 struct ureg_src i_vtex;
128 struct ureg_src sampler_cur;
129 struct ureg_src sampler_prevprev;
130 struct ureg_src sampler_prev;
131 struct ureg_src sampler_next;
132 struct ureg_dst o_fragment;
133 struct ureg_dst t_tex;
134 struct ureg_dst t_comp_top, t_comp_bot;
135 struct ureg_dst t_diff;
136 struct ureg_dst t_a, t_b;
137 struct ureg_dst t_weave, t_linear;
138
139 shader = ureg_create(PIPE_SHADER_FRAGMENT);
140 if (!shader) {
141 return NULL;
142 }
143
144 t_tex = ureg_DECL_temporary(shader);
145 t_comp_top = ureg_DECL_temporary(shader);
146 t_comp_bot = ureg_DECL_temporary(shader);
147 t_diff = ureg_DECL_temporary(shader);
148 t_a = ureg_DECL_temporary(shader);
149 t_b = ureg_DECL_temporary(shader);
150 t_weave = ureg_DECL_temporary(shader);
151 t_linear = ureg_DECL_temporary(shader);
152
153 i_vtex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
154 sampler_prevprev = ureg_DECL_sampler(shader, 0);
155 sampler_prev = ureg_DECL_sampler(shader, 1);
156 sampler_cur = ureg_DECL_sampler(shader, 2);
157 sampler_next = ureg_DECL_sampler(shader, 3);
158 o_fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
159
160 // we don't care about ZW interpolation (allows better optimization)
161 ureg_MOV(shader, t_tex, i_vtex);
162 ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
163 ureg_imm1f(shader, 0));
164
165 // sample between texels for cheap lowpass
166 ureg_ADD(shader, t_comp_top, ureg_src(t_tex),
167 ureg_imm4f(shader, sizes->x * 0.5f, sizes->y * -0.5f, 0, 0));
168 ureg_ADD(shader, t_comp_bot, ureg_src(t_tex),
169 ureg_imm4f(shader, sizes->x * -0.5f, sizes->y * 0.5f, 1.0f, 0));
170
171 if (field == 0) {
172 /* interpolating top field -> current field is a bottom field */
173 // cur vs prev2
174 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_cur);
175 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prevprev);
176 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
177 // prev vs next
178 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_prev);
179 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_next);
180 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_Y), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
181 } else {
182 /* interpolating bottom field -> current field is a top field */
183 // cur vs prev2
184 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_cur);
185 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_prevprev);
186 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
187 // prev vs next
188 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prev);
189 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_next);
190 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_Y), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
191 }
192
193 // absolute maximum of differences
194 ureg_MAX(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_abs(ureg_src(t_diff)),
195 ureg_scalar(ureg_abs(ureg_src(t_diff)), TGSI_SWIZZLE_Y));
196
197 if (field == 0) {
198 /* weave with prev top field */
199 ureg_TEX(shader, t_weave, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_tex), sampler_prev);
200 /* get linear interpolation from current bottom field */
201 ureg_ADD(shader, t_comp_top, ureg_src(t_tex), ureg_imm4f(shader, 0, sizes->y * -1.0f, 1.0f, 0));
202 ureg_TEX(shader, t_linear, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_cur);
203 } else {
204 /* weave with prev bottom field */
205 ureg_ADD(shader, t_comp_bot, ureg_src(t_tex), ureg_imm4f(shader, 0, 0, 1.0f, 0));
206 ureg_TEX(shader, t_weave, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prev);
207 /* get linear interpolation from current top field */
208 ureg_ADD(shader, t_comp_bot, ureg_src(t_tex), ureg_imm4f(shader, 0, sizes->y * 1.0f, 0, 0));
209 ureg_TEX(shader, t_linear, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_cur);
210 }
211
212 // mix between weave and linear
213 // fully weave if diff < 6 (0.02353), fully interpolate if diff > 14 (0.05490)
214 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_diff),
215 ureg_imm4f(shader, -0.02353f, 0, 0, 0));
216 ureg_MUL(shader, ureg_saturate(ureg_writemask(t_diff, TGSI_WRITEMASK_X)),
217 ureg_src(t_diff), ureg_imm4f(shader, 31.8750f, 0, 0, 0));
218 ureg_LRP(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_X), ureg_src(t_diff),
219 ureg_src(t_linear), ureg_src(t_weave));
220 ureg_MOV(shader, o_fragment, ureg_scalar(ureg_src(t_tex), TGSI_SWIZZLE_X));
221
222 ureg_release_temporary(shader, t_tex);
223 ureg_release_temporary(shader, t_comp_top);
224 ureg_release_temporary(shader, t_comp_bot);
225 ureg_release_temporary(shader, t_diff);
226 ureg_release_temporary(shader, t_a);
227 ureg_release_temporary(shader, t_b);
228 ureg_release_temporary(shader, t_weave);
229 ureg_release_temporary(shader, t_linear);
230 ureg_END(shader);
231
232 return ureg_create_shader_and_destroy(shader, filter->pipe);
233 }
234
235 bool
vl_deint_filter_init(struct vl_deint_filter * filter,struct pipe_context * pipe,unsigned video_width,unsigned video_height,bool skip_chroma,bool spatial_filter)236 vl_deint_filter_init(struct vl_deint_filter *filter, struct pipe_context *pipe,
237 unsigned video_width, unsigned video_height,
238 bool skip_chroma, bool spatial_filter)
239 {
240 struct pipe_rasterizer_state rs_state;
241 struct pipe_blend_state blend;
242 struct pipe_sampler_state sampler;
243 struct pipe_vertex_element ve;
244 struct vertex2f sizes;
245 struct pipe_video_buffer templ;
246
247 assert(filter && pipe);
248 assert(video_width && video_height);
249
250 memset(filter, 0, sizeof(*filter));
251 filter->pipe = pipe;
252 filter->skip_chroma = skip_chroma;
253 filter->video_width = video_width;
254 filter->video_height = video_height;
255
256 /* TODO: handle other than 4:2:0 subsampling */
257 memset(&templ, 0, sizeof(templ));
258 templ.buffer_format = pipe->screen->get_video_param
259 (
260 pipe->screen,
261 PIPE_VIDEO_PROFILE_UNKNOWN,
262 PIPE_VIDEO_ENTRYPOINT_UNKNOWN,
263 PIPE_VIDEO_CAP_PREFERED_FORMAT
264 );
265 templ.width = video_width;
266 templ.height = video_height;
267 templ.interlaced = true;
268 filter->video_buffer = vl_video_buffer_create(pipe, &templ);
269 if (!filter->video_buffer)
270 goto error_video_buffer;
271
272 memset(&rs_state, 0, sizeof(rs_state));
273 rs_state.half_pixel_center = true;
274 rs_state.bottom_edge_rule = true;
275 rs_state.depth_clip_near = 1;
276 rs_state.depth_clip_far = 1;
277
278 filter->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
279 if (!filter->rs_state)
280 goto error_rs_state;
281
282 memset(&blend, 0, sizeof blend);
283 blend.rt[0].colormask = PIPE_MASK_R;
284 filter->blend[0] = pipe->create_blend_state(pipe, &blend);
285 if (!filter->blend[0])
286 goto error_blendR;
287
288 blend.rt[0].colormask = PIPE_MASK_G;
289 filter->blend[1] = pipe->create_blend_state(pipe, &blend);
290 if (!filter->blend[1])
291 goto error_blendG;
292
293 blend.rt[0].colormask = PIPE_MASK_B;
294 filter->blend[2] = pipe->create_blend_state(pipe, &blend);
295 if (!filter->blend[2])
296 goto error_blendB;
297
298 memset(&sampler, 0, sizeof(sampler));
299 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
300 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
301 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
302 sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
303 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
304 sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
305 sampler.normalized_coords = 1;
306 filter->sampler[0] = pipe->create_sampler_state(pipe, &sampler);
307 filter->sampler[1] = filter->sampler[2] = filter->sampler[3] = filter->sampler[0];
308 if (!filter->sampler[0])
309 goto error_sampler;
310
311 filter->quad = vl_vb_upload_quads(pipe);
312 if(!filter->quad.buffer.resource)
313 goto error_quad;
314
315 memset(&ve, 0, sizeof(ve));
316 ve.src_offset = 0;
317 ve.instance_divisor = 0;
318 ve.vertex_buffer_index = 0;
319 ve.src_format = PIPE_FORMAT_R32G32_FLOAT;
320 filter->ves = pipe->create_vertex_elements_state(pipe, 1, &ve);
321 if (!filter->ves)
322 goto error_ves;
323
324 sizes.x = 1.0f / video_width;
325 sizes.y = 1.0f / video_height;
326
327 filter->vs = create_vert_shader(filter);
328 if (!filter->vs)
329 goto error_vs;
330
331 filter->fs_copy_top = create_copy_frag_shader(filter, 0);
332 if (!filter->fs_copy_top)
333 goto error_fs_copy_top;
334
335 filter->fs_copy_bottom = create_copy_frag_shader(filter, 1);
336 if (!filter->fs_copy_bottom)
337 goto error_fs_copy_bottom;
338
339 filter->fs_deint_top = create_deint_frag_shader(filter, 0, &sizes, spatial_filter);
340 if (!filter->fs_deint_top)
341 goto error_fs_deint_top;
342
343 filter->fs_deint_bottom = create_deint_frag_shader(filter, 1, &sizes, spatial_filter);
344 if (!filter->fs_deint_bottom)
345 goto error_fs_deint_bottom;
346
347 return true;
348
349 error_fs_deint_bottom:
350 pipe->delete_fs_state(pipe, filter->fs_deint_top);
351
352 error_fs_deint_top:
353 pipe->delete_fs_state(pipe, filter->fs_copy_bottom);
354
355 error_fs_copy_bottom:
356 pipe->delete_fs_state(pipe, filter->fs_copy_top);
357
358 error_fs_copy_top:
359 pipe->delete_vs_state(pipe, filter->vs);
360
361 error_vs:
362 pipe->delete_vertex_elements_state(pipe, filter->ves);
363
364 error_ves:
365 pipe_resource_reference(&filter->quad.buffer.resource, NULL);
366
367 error_quad:
368 pipe->delete_sampler_state(pipe, filter->sampler);
369
370 error_sampler:
371 pipe->delete_blend_state(pipe, filter->blend[2]);
372
373 error_blendB:
374 pipe->delete_blend_state(pipe, filter->blend[1]);
375
376 error_blendG:
377 pipe->delete_blend_state(pipe, filter->blend[0]);
378
379 error_blendR:
380 pipe->delete_rasterizer_state(pipe, filter->rs_state);
381
382 error_rs_state:
383 filter->video_buffer->destroy(filter->video_buffer);
384
385 error_video_buffer:
386 return false;
387 }
388
389 void
vl_deint_filter_cleanup(struct vl_deint_filter * filter)390 vl_deint_filter_cleanup(struct vl_deint_filter *filter)
391 {
392 assert(filter);
393
394 filter->pipe->delete_sampler_state(filter->pipe, filter->sampler[0]);
395 filter->pipe->delete_blend_state(filter->pipe, filter->blend[0]);
396 filter->pipe->delete_blend_state(filter->pipe, filter->blend[1]);
397 filter->pipe->delete_blend_state(filter->pipe, filter->blend[2]);
398 filter->pipe->delete_rasterizer_state(filter->pipe, filter->rs_state);
399 filter->pipe->delete_vertex_elements_state(filter->pipe, filter->ves);
400 pipe_resource_reference(&filter->quad.buffer.resource, NULL);
401
402 filter->pipe->delete_vs_state(filter->pipe, filter->vs);
403 filter->pipe->delete_fs_state(filter->pipe, filter->fs_copy_top);
404 filter->pipe->delete_fs_state(filter->pipe, filter->fs_copy_bottom);
405 filter->pipe->delete_fs_state(filter->pipe, filter->fs_deint_top);
406 filter->pipe->delete_fs_state(filter->pipe, filter->fs_deint_bottom);
407
408 filter->video_buffer->destroy(filter->video_buffer);
409 }
410
411 bool
vl_deint_filter_check_buffers(struct vl_deint_filter * filter,struct pipe_video_buffer * prevprev,struct pipe_video_buffer * prev,struct pipe_video_buffer * cur,struct pipe_video_buffer * next)412 vl_deint_filter_check_buffers(struct vl_deint_filter *filter,
413 struct pipe_video_buffer *prevprev,
414 struct pipe_video_buffer *prev,
415 struct pipe_video_buffer *cur,
416 struct pipe_video_buffer *next)
417 {
418 int i;
419 struct pipe_video_buffer *bufs[] = { prevprev, prev, cur, next };
420
421 for (i = 0; i < 4; i++) {
422 if (pipe_format_to_chroma_format(bufs[i]->buffer_format) != PIPE_VIDEO_CHROMA_FORMAT_420)
423 return false;
424 if (bufs[i]->width < filter->video_width ||
425 bufs[i]->height < filter->video_height)
426 return false;
427 if (!bufs[i]->interlaced)
428 return false;
429 }
430
431 return true;
432 }
433
434 void
vl_deint_filter_render(struct vl_deint_filter * filter,struct pipe_video_buffer * prevprev,struct pipe_video_buffer * prev,struct pipe_video_buffer * cur,struct pipe_video_buffer * next,unsigned field)435 vl_deint_filter_render(struct vl_deint_filter *filter,
436 struct pipe_video_buffer *prevprev,
437 struct pipe_video_buffer *prev,
438 struct pipe_video_buffer *cur,
439 struct pipe_video_buffer *next,
440 unsigned field)
441 {
442 struct pipe_viewport_state viewport;
443 struct pipe_framebuffer_state fb_state;
444 struct pipe_sampler_view **cur_sv;
445 struct pipe_sampler_view **prevprev_sv;
446 struct pipe_sampler_view **prev_sv;
447 struct pipe_sampler_view **next_sv;
448 struct pipe_sampler_view *sampler_views[4];
449 struct pipe_surface **dst_surfaces;
450 const unsigned *plane_order;
451 int i;
452 unsigned j;
453
454 assert(filter && prevprev && prev && cur && next && field <= 1);
455
456 /* set up destination and source */
457 dst_surfaces = filter->video_buffer->get_surfaces(filter->video_buffer);
458 plane_order = vl_video_buffer_plane_order(filter->video_buffer->buffer_format);
459 cur_sv = cur->get_sampler_view_components(cur);
460 prevprev_sv = prevprev->get_sampler_view_components(prevprev);
461 prev_sv = prev->get_sampler_view_components(prev);
462 next_sv = next->get_sampler_view_components(next);
463
464 /* set up pipe state */
465 filter->pipe->bind_rasterizer_state(filter->pipe, filter->rs_state);
466 filter->pipe->set_vertex_buffers(filter->pipe, 0, 1, &filter->quad);
467 filter->pipe->bind_vertex_elements_state(filter->pipe, filter->ves);
468 filter->pipe->bind_vs_state(filter->pipe, filter->vs);
469 filter->pipe->bind_sampler_states(filter->pipe, PIPE_SHADER_FRAGMENT,
470 0, 4, filter->sampler);
471
472 /* prepare viewport */
473 memset(&viewport, 0, sizeof(viewport));
474 viewport.scale[2] = 1;
475
476 /* prepare framebuffer */
477 memset(&fb_state, 0, sizeof(fb_state));
478 fb_state.nr_cbufs = 1;
479
480 /* process each plane separately */
481 for (i = 0, j = 0; i < VL_NUM_COMPONENTS; ++i) {
482 struct pipe_surface *blit_surf = dst_surfaces[field];
483 struct pipe_surface *dst_surf = dst_surfaces[1 - field];
484 int k = plane_order[i];
485
486 /* bind blend state for this component in the plane */
487 filter->pipe->bind_blend_state(filter->pipe, filter->blend[j]);
488
489 /* update render target state */
490 viewport.scale[0] = blit_surf->texture->width0;
491 viewport.scale[1] = blit_surf->texture->height0;
492 fb_state.width = blit_surf->texture->width0;
493 fb_state.height = blit_surf->texture->height0;
494
495 /* update sampler view sources */
496 sampler_views[0] = prevprev_sv[k];
497 sampler_views[1] = prev_sv[k];
498 sampler_views[2] = cur_sv[k];
499 sampler_views[3] = next_sv[k];
500 filter->pipe->set_sampler_views(filter->pipe, PIPE_SHADER_FRAGMENT, 0, 4, sampler_views);
501
502 /* blit current field */
503 fb_state.cbufs[0] = blit_surf;
504 filter->pipe->bind_fs_state(filter->pipe, field ? filter->fs_copy_bottom : filter->fs_copy_top);
505 filter->pipe->set_framebuffer_state(filter->pipe, &fb_state);
506 filter->pipe->set_viewport_states(filter->pipe, 0, 1, &viewport);
507 util_draw_arrays(filter->pipe, PIPE_PRIM_QUADS, 0, 4);
508
509 /* blit or interpolate other field */
510 fb_state.cbufs[0] = dst_surf;
511 filter->pipe->set_framebuffer_state(filter->pipe, &fb_state);
512 if (i > 0 && filter->skip_chroma) {
513 util_draw_arrays(filter->pipe, PIPE_PRIM_QUADS, 0, 4);
514 } else {
515 filter->pipe->bind_fs_state(filter->pipe, field ? filter->fs_deint_top : filter->fs_deint_bottom);
516 util_draw_arrays(filter->pipe, PIPE_PRIM_QUADS, 0, 4);
517 }
518
519 if (++j >= util_format_get_nr_components(dst_surf->format)) {
520 dst_surfaces += 2;
521 j = 0;
522 }
523 }
524 }
525