1 /**************************************************************************
2 *
3 * Copyright 2013 Grigori Goronzy <[email protected]>.
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,struct vertex2f * sizes)87 create_copy_frag_shader(struct vl_deint_filter *filter, unsigned field,
88 struct vertex2f *sizes)
89 {
90 struct ureg_program *shader;
91 struct ureg_src i_vtex;
92 struct ureg_src sampler;
93 struct ureg_dst o_fragment;
94 struct ureg_dst t_tex;
95
96 shader = ureg_create(PIPE_SHADER_FRAGMENT);
97 if (!shader) {
98 return NULL;
99 }
100 t_tex = ureg_DECL_temporary(shader);
101
102 i_vtex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
103 sampler = ureg_DECL_sampler(shader, 2);
104 o_fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
105
106 ureg_MOV(shader, t_tex, i_vtex);
107 if (field) {
108 if (filter->interleaved)
109 ureg_ADD(shader, t_tex, ureg_src(t_tex),
110 ureg_imm4f(shader, 0, sizes->y * 0.5f, 0, 0));
111 ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
112 ureg_imm4f(shader, 0, 0, 1.0f, 0));
113 } else {
114 if (filter->interleaved)
115 ureg_ADD(shader, t_tex, ureg_src(t_tex),
116 ureg_imm4f(shader, 0, sizes->y * -0.5f, 0, 0));
117 ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
118 ureg_imm1f(shader, 0));
119 }
120
121 ureg_TEX(shader, o_fragment, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_tex), sampler);
122
123 ureg_release_temporary(shader, t_tex);
124 ureg_END(shader);
125
126 return ureg_create_shader_and_destroy(shader, filter->pipe);
127 }
128
129 static void *
create_deint_frag_shader(struct vl_deint_filter * filter,unsigned field,struct vertex2f * sizes,bool spatial_filter)130 create_deint_frag_shader(struct vl_deint_filter *filter, unsigned field,
131 struct vertex2f *sizes, bool spatial_filter)
132 {
133 struct ureg_program *shader;
134 struct ureg_src i_vtex;
135 struct ureg_src sampler_cur;
136 struct ureg_src sampler_prevprev;
137 struct ureg_src sampler_prev;
138 struct ureg_src sampler_next;
139 struct ureg_dst o_fragment;
140 struct ureg_dst t_tex;
141 struct ureg_dst t_comp_top, t_comp_bot;
142 struct ureg_dst t_diff;
143 struct ureg_dst t_a, t_b;
144 struct ureg_dst t_weave, t_linear;
145
146 shader = ureg_create(PIPE_SHADER_FRAGMENT);
147 if (!shader) {
148 return NULL;
149 }
150
151 t_tex = ureg_DECL_temporary(shader);
152 t_comp_top = ureg_DECL_temporary(shader);
153 t_comp_bot = ureg_DECL_temporary(shader);
154 t_diff = ureg_DECL_temporary(shader);
155 t_a = ureg_DECL_temporary(shader);
156 t_b = ureg_DECL_temporary(shader);
157 t_weave = ureg_DECL_temporary(shader);
158 t_linear = ureg_DECL_temporary(shader);
159
160 i_vtex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
161 sampler_prevprev = ureg_DECL_sampler(shader, 0);
162 sampler_prev = ureg_DECL_sampler(shader, 1);
163 sampler_cur = ureg_DECL_sampler(shader, 2);
164 sampler_next = ureg_DECL_sampler(shader, 3);
165 o_fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
166
167 // we don't care about ZW interpolation (allows better optimization)
168 ureg_MOV(shader, t_tex, i_vtex);
169 ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
170 ureg_imm1f(shader, 0));
171
172 // sample between texels for cheap lowpass
173 ureg_ADD(shader, t_comp_top, ureg_src(t_tex),
174 ureg_imm4f(shader, sizes->x * 0.5f, sizes->y * -0.5f, 0, 0));
175 ureg_ADD(shader, t_comp_bot, ureg_src(t_tex),
176 ureg_imm4f(shader, sizes->x * -0.5f, sizes->y * 0.5f, 1.0f, 0));
177
178 if (field == 0) {
179 /* interpolating top field -> current field is a bottom field */
180 // cur vs prev2
181 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_cur);
182 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prevprev);
183 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
184 // prev vs next
185 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_prev);
186 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_next);
187 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_Y), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
188 } else {
189 /* interpolating bottom field -> current field is a top field */
190 // cur vs prev2
191 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_cur);
192 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_prevprev);
193 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
194 // prev vs next
195 ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prev);
196 ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_next);
197 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_Y), ureg_src(t_a), ureg_negate(ureg_src(t_b)));
198 }
199
200 // absolute maximum of differences
201 ureg_MAX(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_abs(ureg_src(t_diff)),
202 ureg_scalar(ureg_abs(ureg_src(t_diff)), TGSI_SWIZZLE_Y));
203
204 if (field == 0) {
205 /* weave with prev top field */
206 if (filter->interleaved)
207 ureg_ADD(shader, t_tex, ureg_src(t_tex),
208 ureg_imm4f(shader, 0, sizes->y * -0.5f, 0, 0));
209 ureg_TEX(shader, t_weave, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_tex), sampler_prev);
210 /* get linear interpolation from current bottom field */
211 ureg_ADD(shader, t_comp_top, ureg_src(t_tex),
212 ureg_imm4f(shader, 0, sizes->y * (filter->interleaved ? 1.0f : -1.0f), 1.0f, 0));
213 ureg_TEX(shader, t_linear, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_cur);
214 } else {
215 /* weave with prev bottom field */
216 if (filter->interleaved)
217 ureg_ADD(shader, t_tex, ureg_src(t_tex),
218 ureg_imm4f(shader, 0, sizes->y * 0.5f, 0, 0));
219 ureg_ADD(shader, t_comp_bot, ureg_src(t_tex), ureg_imm4f(shader, 0, 0, 1.0f, 0));
220 ureg_TEX(shader, t_weave, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prev);
221 /* get linear interpolation from current top field */
222 ureg_ADD(shader, t_comp_bot, ureg_src(t_tex),
223 ureg_imm4f(shader, 0, sizes->y * (filter->interleaved ? -1.0f : 1.0f), 0, 0));
224 ureg_TEX(shader, t_linear, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_cur);
225 }
226
227 // mix between weave and linear
228 // fully weave if diff < 6 (0.02353), fully interpolate if diff > 14 (0.05490)
229 ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_diff),
230 ureg_imm4f(shader, -0.02353f, 0, 0, 0));
231 ureg_MUL(shader, ureg_saturate(ureg_writemask(t_diff, TGSI_WRITEMASK_X)),
232 ureg_src(t_diff), ureg_imm4f(shader, 31.8750f, 0, 0, 0));
233 ureg_LRP(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_X), ureg_src(t_diff),
234 ureg_src(t_linear), ureg_src(t_weave));
235 ureg_MOV(shader, o_fragment, ureg_scalar(ureg_src(t_tex), TGSI_SWIZZLE_X));
236
237 ureg_release_temporary(shader, t_tex);
238 ureg_release_temporary(shader, t_comp_top);
239 ureg_release_temporary(shader, t_comp_bot);
240 ureg_release_temporary(shader, t_diff);
241 ureg_release_temporary(shader, t_a);
242 ureg_release_temporary(shader, t_b);
243 ureg_release_temporary(shader, t_weave);
244 ureg_release_temporary(shader, t_linear);
245 ureg_END(shader);
246
247 return ureg_create_shader_and_destroy(shader, filter->pipe);
248 }
249
250 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,bool interleaved)251 vl_deint_filter_init(struct vl_deint_filter *filter, struct pipe_context *pipe,
252 unsigned video_width, unsigned video_height,
253 bool skip_chroma, bool spatial_filter, bool interleaved)
254 {
255 struct pipe_rasterizer_state rs_state;
256 struct pipe_blend_state blend;
257 struct pipe_sampler_state sampler;
258 struct pipe_vertex_element ve;
259 struct vertex2f sizes;
260 struct pipe_video_buffer templ;
261
262 assert(filter && pipe);
263 assert(video_width && video_height);
264
265 memset(filter, 0, sizeof(*filter));
266 filter->pipe = pipe;
267 filter->skip_chroma = skip_chroma;
268 filter->interleaved = interleaved;
269 filter->video_width = video_width;
270 filter->video_height = video_height;
271
272 /* TODO: handle other than 4:2:0 subsampling */
273 memset(&templ, 0, sizeof(templ));
274 templ.buffer_format = pipe->screen->get_video_param
275 (
276 pipe->screen,
277 PIPE_VIDEO_PROFILE_UNKNOWN,
278 PIPE_VIDEO_ENTRYPOINT_PROCESSING,
279 PIPE_VIDEO_CAP_PREFERED_FORMAT
280 );
281 templ.width = video_width;
282 templ.height = video_height;
283 templ.interlaced = true;
284 filter->video_buffer = vl_video_buffer_create(pipe, &templ);
285 if (!filter->video_buffer)
286 goto error_video_buffer;
287
288 memset(&rs_state, 0, sizeof(rs_state));
289 rs_state.half_pixel_center = true;
290 rs_state.bottom_edge_rule = true;
291 rs_state.depth_clip_near = 1;
292 rs_state.depth_clip_far = 1;
293
294 filter->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
295 if (!filter->rs_state)
296 goto error_rs_state;
297
298 memset(&blend, 0, sizeof blend);
299 blend.rt[0].colormask = PIPE_MASK_R;
300 filter->blend[0] = pipe->create_blend_state(pipe, &blend);
301 if (!filter->blend[0])
302 goto error_blendR;
303
304 blend.rt[0].colormask = PIPE_MASK_G;
305 filter->blend[1] = pipe->create_blend_state(pipe, &blend);
306 if (!filter->blend[1])
307 goto error_blendG;
308
309 blend.rt[0].colormask = PIPE_MASK_B;
310 filter->blend[2] = pipe->create_blend_state(pipe, &blend);
311 if (!filter->blend[2])
312 goto error_blendB;
313
314 memset(&sampler, 0, sizeof(sampler));
315 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
316 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
317 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
318 sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
319 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
320 sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
321 filter->sampler[0] = pipe->create_sampler_state(pipe, &sampler);
322 filter->sampler[1] = filter->sampler[2] = filter->sampler[3] = filter->sampler[0];
323 if (!filter->sampler[0])
324 goto error_sampler;
325
326 filter->quad = vl_vb_upload_quads(pipe);
327 if(!filter->quad.buffer.resource)
328 goto error_quad;
329
330 memset(&ve, 0, sizeof(ve));
331 ve.src_offset = 0;
332 ve.src_stride = sizeof(struct vertex2f);
333 ve.instance_divisor = 0;
334 ve.vertex_buffer_index = 0;
335 ve.src_format = PIPE_FORMAT_R32G32_FLOAT;
336 filter->ves = pipe->create_vertex_elements_state(pipe, 1, &ve);
337 if (!filter->ves)
338 goto error_ves;
339
340 sizes.x = 1.0f / video_width;
341 sizes.y = 1.0f / video_height;
342
343 filter->vs = create_vert_shader(filter);
344 if (!filter->vs)
345 goto error_vs;
346
347 filter->fs_copy_top = create_copy_frag_shader(filter, 0, &sizes);
348 if (!filter->fs_copy_top)
349 goto error_fs_copy_top;
350
351 filter->fs_copy_bottom = create_copy_frag_shader(filter, 1, &sizes);
352 if (!filter->fs_copy_bottom)
353 goto error_fs_copy_bottom;
354
355 filter->fs_deint_top = create_deint_frag_shader(filter, 0, &sizes, spatial_filter);
356 if (!filter->fs_deint_top)
357 goto error_fs_deint_top;
358
359 filter->fs_deint_bottom = create_deint_frag_shader(filter, 1, &sizes, spatial_filter);
360 if (!filter->fs_deint_bottom)
361 goto error_fs_deint_bottom;
362
363 return true;
364
365 error_fs_deint_bottom:
366 pipe->delete_fs_state(pipe, filter->fs_deint_top);
367
368 error_fs_deint_top:
369 pipe->delete_fs_state(pipe, filter->fs_copy_bottom);
370
371 error_fs_copy_bottom:
372 pipe->delete_fs_state(pipe, filter->fs_copy_top);
373
374 error_fs_copy_top:
375 pipe->delete_vs_state(pipe, filter->vs);
376
377 error_vs:
378 pipe->delete_vertex_elements_state(pipe, filter->ves);
379
380 error_ves:
381 pipe_resource_reference(&filter->quad.buffer.resource, NULL);
382
383 error_quad:
384 pipe->delete_sampler_state(pipe, filter->sampler);
385
386 error_sampler:
387 pipe->delete_blend_state(pipe, filter->blend[2]);
388
389 error_blendB:
390 pipe->delete_blend_state(pipe, filter->blend[1]);
391
392 error_blendG:
393 pipe->delete_blend_state(pipe, filter->blend[0]);
394
395 error_blendR:
396 pipe->delete_rasterizer_state(pipe, filter->rs_state);
397
398 error_rs_state:
399 filter->video_buffer->destroy(filter->video_buffer);
400
401 error_video_buffer:
402 return false;
403 }
404
405 void
vl_deint_filter_cleanup(struct vl_deint_filter * filter)406 vl_deint_filter_cleanup(struct vl_deint_filter *filter)
407 {
408 assert(filter);
409
410 filter->pipe->delete_sampler_state(filter->pipe, filter->sampler[0]);
411 filter->pipe->delete_blend_state(filter->pipe, filter->blend[0]);
412 filter->pipe->delete_blend_state(filter->pipe, filter->blend[1]);
413 filter->pipe->delete_blend_state(filter->pipe, filter->blend[2]);
414 filter->pipe->delete_rasterizer_state(filter->pipe, filter->rs_state);
415 filter->pipe->delete_vertex_elements_state(filter->pipe, filter->ves);
416 pipe_resource_reference(&filter->quad.buffer.resource, NULL);
417
418 filter->pipe->delete_vs_state(filter->pipe, filter->vs);
419 filter->pipe->delete_fs_state(filter->pipe, filter->fs_copy_top);
420 filter->pipe->delete_fs_state(filter->pipe, filter->fs_copy_bottom);
421 filter->pipe->delete_fs_state(filter->pipe, filter->fs_deint_top);
422 filter->pipe->delete_fs_state(filter->pipe, filter->fs_deint_bottom);
423
424 filter->video_buffer->destroy(filter->video_buffer);
425 }
426
427 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)428 vl_deint_filter_check_buffers(struct vl_deint_filter *filter,
429 struct pipe_video_buffer *prevprev,
430 struct pipe_video_buffer *prev,
431 struct pipe_video_buffer *cur,
432 struct pipe_video_buffer *next)
433 {
434 int i;
435 struct pipe_video_buffer *bufs[] = { prevprev, prev, cur, next };
436
437 for (i = 0; i < 4; i++) {
438 if (pipe_format_to_chroma_format(bufs[i]->buffer_format) != PIPE_VIDEO_CHROMA_FORMAT_420)
439 return false;
440 if (bufs[i]->width < filter->video_width ||
441 bufs[i]->height < filter->video_height)
442 return false;
443 if (bufs[i]->interlaced != !filter->interleaved)
444 return false;
445 }
446
447 return true;
448 }
449
450 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)451 vl_deint_filter_render(struct vl_deint_filter *filter,
452 struct pipe_video_buffer *prevprev,
453 struct pipe_video_buffer *prev,
454 struct pipe_video_buffer *cur,
455 struct pipe_video_buffer *next,
456 unsigned field)
457 {
458 struct pipe_viewport_state viewport;
459 struct pipe_framebuffer_state fb_state;
460 struct pipe_sampler_view **cur_sv;
461 struct pipe_sampler_view **prevprev_sv;
462 struct pipe_sampler_view **prev_sv;
463 struct pipe_sampler_view **next_sv;
464 struct pipe_sampler_view *sampler_views[4];
465 struct pipe_surface **dst_surfaces;
466 const unsigned *plane_order;
467 int i;
468 unsigned j;
469
470 assert(filter && prevprev && prev && cur && next && field <= 1);
471
472 /* set up destination and source */
473 dst_surfaces = filter->video_buffer->get_surfaces(filter->video_buffer);
474 plane_order = vl_video_buffer_plane_order(filter->video_buffer->buffer_format);
475 cur_sv = cur->get_sampler_view_components(cur);
476 prevprev_sv = prevprev->get_sampler_view_components(prevprev);
477 prev_sv = prev->get_sampler_view_components(prev);
478 next_sv = next->get_sampler_view_components(next);
479
480 /* set up pipe state */
481 filter->pipe->bind_rasterizer_state(filter->pipe, filter->rs_state);
482 filter->pipe->bind_vertex_elements_state(filter->pipe, filter->ves);
483 util_set_vertex_buffers(filter->pipe, 1, false, &filter->quad);
484 filter->pipe->bind_vs_state(filter->pipe, filter->vs);
485 filter->pipe->bind_sampler_states(filter->pipe, PIPE_SHADER_FRAGMENT,
486 0, 4, filter->sampler);
487
488 /* prepare viewport */
489 memset(&viewport, 0, sizeof(viewport));
490 viewport.scale[2] = 1;
491 viewport.swizzle_x = PIPE_VIEWPORT_SWIZZLE_POSITIVE_X;
492 viewport.swizzle_y = PIPE_VIEWPORT_SWIZZLE_POSITIVE_Y;
493 viewport.swizzle_z = PIPE_VIEWPORT_SWIZZLE_POSITIVE_Z;
494 viewport.swizzle_w = PIPE_VIEWPORT_SWIZZLE_POSITIVE_W;
495
496 /* prepare framebuffer */
497 memset(&fb_state, 0, sizeof(fb_state));
498 fb_state.nr_cbufs = 1;
499
500 /* process each plane separately */
501 for (i = 0, j = 0; i < VL_NUM_COMPONENTS; ++i) {
502 struct pipe_surface *blit_surf = dst_surfaces[field];
503 struct pipe_surface *dst_surf = dst_surfaces[1 - field];
504 int k = plane_order[i];
505
506 /* bind blend state for this component in the plane */
507 filter->pipe->bind_blend_state(filter->pipe, filter->blend[j]);
508
509 /* update render target state */
510 viewport.scale[0] = blit_surf->texture->width0;
511 viewport.scale[1] = blit_surf->texture->height0;
512 fb_state.width = blit_surf->texture->width0;
513 fb_state.height = blit_surf->texture->height0;
514
515 /* update sampler view sources */
516 sampler_views[0] = prevprev_sv[k];
517 sampler_views[1] = prev_sv[k];
518 sampler_views[2] = cur_sv[k];
519 sampler_views[3] = next_sv[k];
520 filter->pipe->set_sampler_views(filter->pipe, PIPE_SHADER_FRAGMENT,
521 0, 4, 0, false, sampler_views);
522
523 /* blit current field */
524 fb_state.cbufs[0] = blit_surf;
525 filter->pipe->bind_fs_state(filter->pipe, field ? filter->fs_copy_bottom : filter->fs_copy_top);
526 filter->pipe->set_framebuffer_state(filter->pipe, &fb_state);
527 filter->pipe->set_viewport_states(filter->pipe, 0, 1, &viewport);
528 util_draw_arrays(filter->pipe, MESA_PRIM_QUADS, 0, 4);
529
530 /* blit or interpolate other field */
531 fb_state.cbufs[0] = dst_surf;
532 filter->pipe->set_framebuffer_state(filter->pipe, &fb_state);
533 if (i > 0 && filter->skip_chroma) {
534 util_draw_arrays(filter->pipe, MESA_PRIM_QUADS, 0, 4);
535 } else {
536 filter->pipe->bind_fs_state(filter->pipe, field ? filter->fs_deint_top : filter->fs_deint_bottom);
537 util_draw_arrays(filter->pipe, MESA_PRIM_QUADS, 0, 4);
538 }
539
540 if (++j >= util_format_get_nr_components(dst_surf->format)) {
541 dst_surfaces += 2;
542 j = 0;
543 }
544 }
545 }
546