1 /**************************************************************************
3 * Copyright 2009 Younes Manton.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "vl_mpeg12_mc_renderer.h"
29 #include "util/u_draw.h"
31 #include <pipe/p_context.h>
32 #include <util/u_inlines.h>
33 #include <util/u_format.h>
34 #include <util/u_math.h>
35 #include <util/u_memory.h>
36 #include <util/u_keymap.h>
37 #include <util/u_sampler.h>
38 #include <util/u_draw.h>
39 #include <tgsi/tgsi_ureg.h>
41 #define DEFAULT_BUF_ALIGNMENT 1
42 #define MACROBLOCK_WIDTH 16
43 #define MACROBLOCK_HEIGHT 16
45 #define BLOCK_HEIGHT 8
50 struct vertex2s mv
[4];
91 static const unsigned const_empty_block_mask_420
[3][2][2] = {
92 { { 0x20, 0x10 }, { 0x08, 0x04 } },
93 { { 0x02, 0x02 }, { 0x02, 0x02 } },
94 { { 0x01, 0x01 }, { 0x01, 0x01 } }
98 create_vert_shader(struct vl_mpeg12_mc_renderer
*r
)
100 struct ureg_program
*shader
;
101 struct ureg_src block_scale
, mv_scale
;
102 struct ureg_src vrect
, vpos
, eb
[2][2], vmv
[4];
103 struct ureg_dst t_vpos
, t_vtex
, t_vmv
;
104 struct ureg_dst o_vpos
, o_line
, o_vtex
[3], o_eb
[2], o_vmv
[4], o_info
;
107 shader
= ureg_create(TGSI_PROCESSOR_VERTEX
);
111 t_vpos
= ureg_DECL_temporary(shader
);
112 t_vtex
= ureg_DECL_temporary(shader
);
113 t_vmv
= ureg_DECL_temporary(shader
);
115 vrect
= ureg_DECL_vs_input(shader
, VS_I_RECT
);
116 vpos
= ureg_DECL_vs_input(shader
, VS_I_VPOS
);
117 eb
[0][0] = ureg_DECL_vs_input(shader
, VS_I_EB_0_0
);
118 eb
[1][0] = ureg_DECL_vs_input(shader
, VS_I_EB_1_0
);
119 eb
[0][1] = ureg_DECL_vs_input(shader
, VS_I_EB_0_1
);
120 eb
[1][1] = ureg_DECL_vs_input(shader
, VS_I_EB_1_1
);
122 o_vpos
= ureg_DECL_output(shader
, TGSI_SEMANTIC_POSITION
, VS_O_VPOS
);
123 o_line
= ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_LINE
);
124 o_vtex
[0] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_TEX0
);
125 o_vtex
[1] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_TEX1
);
126 o_vtex
[2] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_TEX2
);
127 o_eb
[0] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_EB_0
);
128 o_eb
[1] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_EB_1
);
129 o_info
= ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_INFO
);
131 for (i
= 0; i
< 4; ++i
) {
132 vmv
[i
] = ureg_DECL_vs_input(shader
, VS_I_MV0
+ i
);
133 o_vmv
[i
] = ureg_DECL_output(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_MV0
+ i
);
137 * block_scale = (MACROBLOCK_WIDTH, MACROBLOCK_HEIGHT) / (dst.width, dst.height)
138 * mv_scale = 0.5 / (dst.width, dst.height);
140 * t_vpos = (vpos + vrect) * block_scale
144 * o_eb[0..1] = vrect.x ? eb[0..1][1] : eb[0..1][0]
146 * o_frame_pred = frame_pred
147 * o_info.x = ref_frames
148 * o_info.y = ref_frames > 0
149 * o_info.z = bkwd_pred
151 * // Apply motion vectors
152 * o_vmv[0..count] = t_vpos + vmv[0..count] * mv_scale
154 * o_line.xy = vrect * 8
155 * o_line.z = interlaced
157 * if(eb[0][0].w) { //interlaced
159 * t_vtex.y = vrect.y * 0.5
162 * o_vtex[0].xy = t_vtex * block_scale
165 * o_vtex[1].xy = t_vtex * block_scale
167 * o_vtex[0..1].xy = t_vpos
169 * o_vtex[2].xy = t_vpos
172 block_scale
= ureg_imm2f(shader
,
173 (float)MACROBLOCK_WIDTH
/ r
->buffer_width
,
174 (float)MACROBLOCK_HEIGHT
/ r
->buffer_height
);
176 mv_scale
= ureg_imm2f(shader
,
177 0.5f
/ r
->buffer_width
,
178 0.5f
/ r
->buffer_height
);
180 ureg_ADD(shader
, ureg_writemask(t_vpos
, TGSI_WRITEMASK_XY
), vpos
, vrect
);
181 ureg_MUL(shader
, ureg_writemask(t_vpos
, TGSI_WRITEMASK_XY
), ureg_src(t_vpos
), block_scale
);
182 ureg_MOV(shader
, ureg_writemask(o_vpos
, TGSI_WRITEMASK_XY
), ureg_src(t_vpos
));
183 ureg_MOV(shader
, ureg_writemask(o_vpos
, TGSI_WRITEMASK_ZW
), vpos
);
185 ureg_CMP(shader
, ureg_writemask(o_eb
[0], TGSI_WRITEMASK_XYZ
),
186 ureg_negate(ureg_scalar(vrect
, TGSI_SWIZZLE_X
)),
188 ureg_CMP(shader
, ureg_writemask(o_eb
[1], TGSI_WRITEMASK_XYZ
),
189 ureg_negate(ureg_scalar(vrect
, TGSI_SWIZZLE_X
)),
192 ureg_MOV(shader
, ureg_writemask(o_info
, TGSI_WRITEMASK_X
),
193 ureg_scalar(eb
[1][1], TGSI_SWIZZLE_W
));
194 ureg_SGE(shader
, ureg_writemask(o_info
, TGSI_WRITEMASK_Y
),
195 ureg_scalar(eb
[1][1], TGSI_SWIZZLE_W
), ureg_imm1f(shader
, 0.0f
));
196 ureg_MOV(shader
, ureg_writemask(o_info
, TGSI_WRITEMASK_Z
),
197 ureg_scalar(eb
[1][0], TGSI_SWIZZLE_W
));
199 ureg_MAD(shader
, ureg_writemask(o_vmv
[0], TGSI_WRITEMASK_XY
), mv_scale
, vmv
[0], ureg_src(t_vpos
));
200 ureg_MAD(shader
, ureg_writemask(o_vmv
[2], TGSI_WRITEMASK_XY
), mv_scale
, vmv
[2], ureg_src(t_vpos
));
202 ureg_CMP(shader
, ureg_writemask(t_vmv
, TGSI_WRITEMASK_XY
),
203 ureg_negate(ureg_scalar(eb
[0][1], TGSI_SWIZZLE_W
)),
205 ureg_MAD(shader
, ureg_writemask(o_vmv
[1], TGSI_WRITEMASK_XY
), mv_scale
, ureg_src(t_vmv
), ureg_src(t_vpos
));
207 ureg_CMP(shader
, ureg_writemask(t_vmv
, TGSI_WRITEMASK_XY
),
208 ureg_negate(ureg_scalar(eb
[0][1], TGSI_SWIZZLE_W
)),
210 ureg_MAD(shader
, ureg_writemask(o_vmv
[3], TGSI_WRITEMASK_XY
), mv_scale
, ureg_src(t_vmv
), ureg_src(t_vpos
));
212 ureg_MOV(shader
, ureg_writemask(o_vtex
[0], TGSI_WRITEMASK_XY
), ureg_src(t_vpos
));
213 ureg_MOV(shader
, ureg_writemask(o_vtex
[1], TGSI_WRITEMASK_XY
), ureg_src(t_vpos
));
214 ureg_MOV(shader
, ureg_writemask(o_vtex
[2], TGSI_WRITEMASK_XY
), ureg_src(t_vpos
));
216 ureg_MOV(shader
, ureg_writemask(o_line
, TGSI_WRITEMASK_X
), ureg_scalar(vrect
, TGSI_SWIZZLE_Y
));
217 ureg_MUL(shader
, ureg_writemask(o_line
, TGSI_WRITEMASK_Y
),
218 vrect
, ureg_imm1f(shader
, MACROBLOCK_HEIGHT
/ 2));
220 ureg_IF(shader
, ureg_scalar(eb
[0][0], TGSI_SWIZZLE_W
), &label
);
222 ureg_MOV(shader
, ureg_writemask(t_vtex
, TGSI_WRITEMASK_X
), vrect
);
223 ureg_MUL(shader
, ureg_writemask(t_vtex
, TGSI_WRITEMASK_Y
), vrect
, ureg_imm1f(shader
, 0.5f
));
224 ureg_ADD(shader
, ureg_writemask(t_vtex
, TGSI_WRITEMASK_XY
), vpos
, ureg_src(t_vtex
));
225 ureg_MUL(shader
, ureg_writemask(o_vtex
[0], TGSI_WRITEMASK_XY
), ureg_src(t_vtex
), block_scale
);
226 ureg_ADD(shader
, ureg_writemask(t_vtex
, TGSI_WRITEMASK_Y
), ureg_src(t_vtex
), ureg_imm1f(shader
, 0.5f
));
227 ureg_MUL(shader
, ureg_writemask(o_vtex
[1], TGSI_WRITEMASK_XY
), ureg_src(t_vtex
), block_scale
);
229 ureg_MUL(shader
, ureg_writemask(o_line
, TGSI_WRITEMASK_X
),
230 ureg_scalar(vrect
, TGSI_SWIZZLE_Y
),
231 ureg_imm1f(shader
, MACROBLOCK_HEIGHT
/ 2));
233 ureg_fixup_label(shader
, label
, ureg_get_instruction_number(shader
));
236 ureg_release_temporary(shader
, t_vtex
);
237 ureg_release_temporary(shader
, t_vpos
);
238 ureg_release_temporary(shader
, t_vmv
);
242 return ureg_create_shader_and_destroy(shader
, r
->pipe
);
245 static struct ureg_dst
246 calc_field(struct ureg_program
*shader
)
249 struct ureg_src line
;
251 tmp
= ureg_DECL_temporary(shader
);
253 line
= ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_LINE
, TGSI_INTERPOLATE_LINEAR
);
256 * line.x going from 0 to 1 if not interlaced
257 * line.x going from 0 to 8 in steps of 0.5 if interlaced
258 * line.y going from 0 to 8 in steps of 0.5
260 * tmp.xy = fraction(line)
261 * tmp.xy = tmp.xy >= 0.5 ? 1 : 0
263 ureg_FRC(shader
, ureg_writemask(tmp
, TGSI_WRITEMASK_XY
), line
);
264 ureg_SGE(shader
, ureg_writemask(tmp
, TGSI_WRITEMASK_XY
), ureg_src(tmp
), ureg_imm1f(shader
, 0.5f
));
269 static struct ureg_dst
270 fetch_ycbcr(struct vl_mpeg12_mc_renderer
*r
, struct ureg_program
*shader
, struct ureg_dst field
)
272 struct ureg_src tc
[3], sampler
[3], eb
[2];
273 struct ureg_dst texel
, t_tc
, t_eb_info
;
276 texel
= ureg_DECL_temporary(shader
);
277 t_tc
= ureg_DECL_temporary(shader
);
278 t_eb_info
= ureg_DECL_temporary(shader
);
280 tc
[0] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_TEX0
, TGSI_INTERPOLATE_LINEAR
);
281 tc
[1] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_TEX1
, TGSI_INTERPOLATE_LINEAR
);
282 tc
[2] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_TEX2
, TGSI_INTERPOLATE_LINEAR
);
284 eb
[0] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_EB_0
, TGSI_INTERPOLATE_CONSTANT
);
285 eb
[1] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_EB_1
, TGSI_INTERPOLATE_CONSTANT
);
287 for (i
= 0; i
< 3; ++i
) {
288 sampler
[i
] = ureg_DECL_sampler(shader
, i
);
292 * texel.y = tex(field.y ? tc[1] : tc[0], sampler[0])
293 * texel.cb = tex(tc[2], sampler[1])
294 * texel.cr = tex(tc[2], sampler[2])
297 ureg_CMP(shader
, ureg_writemask(t_tc
, TGSI_WRITEMASK_XY
),
298 ureg_negate(ureg_scalar(ureg_src(field
), TGSI_SWIZZLE_X
)),
301 ureg_CMP(shader
, ureg_writemask(t_eb_info
, TGSI_WRITEMASK_XYZ
),
302 ureg_negate(ureg_scalar(ureg_src(field
), TGSI_SWIZZLE_X
)),
305 /* r600g is ignoring TGSI_INTERPOLATE_CONSTANT, just workaround this */
306 ureg_SLT(shader
, ureg_writemask(t_eb_info
, TGSI_WRITEMASK_XYZ
), ureg_src(t_eb_info
), ureg_imm1f(shader
, 0.5f
));
308 ureg_MOV(shader
, ureg_writemask(texel
, TGSI_WRITEMASK_XYZ
), ureg_imm1f(shader
, 0.0f
));
309 for (i
= 0; i
< 3; ++i
) {
310 ureg_IF(shader
, ureg_scalar(ureg_src(t_eb_info
), TGSI_SWIZZLE_X
+ i
), &label
);
312 /* Nouveau can't writemask tex dst regs (yet?), so this won't work anymore on nvidia hardware */
313 if(i
==0 || r
->chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_444
) {
314 ureg_TEX(shader
, ureg_writemask(texel
, TGSI_WRITEMASK_X
<< i
), TGSI_TEXTURE_3D
, ureg_src(t_tc
), sampler
[i
]);
316 ureg_TEX(shader
, ureg_writemask(texel
, TGSI_WRITEMASK_X
<< i
), TGSI_TEXTURE_3D
, tc
[2], sampler
[i
]);
319 ureg_fixup_label(shader
, label
, ureg_get_instruction_number(shader
));
323 ureg_release_temporary(shader
, t_tc
);
324 ureg_release_temporary(shader
, t_eb_info
);
329 static struct ureg_dst
330 fetch_ref(struct ureg_program
*shader
, struct ureg_dst field
)
332 struct ureg_src info
;
333 struct ureg_src tc
[4], sampler
[2];
334 struct ureg_dst ref
[2], result
;
335 unsigned i
, intra_label
, bi_label
, label
;
337 info
= ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_INFO
, TGSI_INTERPOLATE_CONSTANT
);
339 for (i
= 0; i
< 4; ++i
)
340 tc
[i
] = ureg_DECL_fs_input(shader
, TGSI_SEMANTIC_GENERIC
, VS_O_MV0
+ i
, TGSI_INTERPOLATE_LINEAR
);
342 for (i
= 0; i
< 2; ++i
) {
343 sampler
[i
] = ureg_DECL_sampler(shader
, i
+ 3);
344 ref
[i
] = ureg_DECL_temporary(shader
);
347 result
= ureg_DECL_temporary(shader
);
349 ureg_MOV(shader
, ureg_writemask(result
, TGSI_WRITEMASK_XYZ
), ureg_imm1f(shader
, 0.5f
));
351 ureg_IF(shader
, ureg_scalar(info
, TGSI_SWIZZLE_Y
), &intra_label
);
352 ureg_CMP(shader
, ureg_writemask(ref
[0], TGSI_WRITEMASK_XY
),
353 ureg_negate(ureg_scalar(ureg_src(field
), TGSI_SWIZZLE_Y
)),
356 ureg_IF(shader
, ureg_scalar(info
, TGSI_SWIZZLE_X
), &bi_label
);
359 * result = tex(field.z ? tc[1] : tc[0], sampler[bkwd_pred ? 1 : 0])
361 ureg_IF(shader
, ureg_scalar(info
, TGSI_SWIZZLE_Z
), &label
);
362 ureg_TEX(shader
, result
, TGSI_TEXTURE_2D
, ureg_src(ref
[0]), sampler
[1]);
363 ureg_fixup_label(shader
, label
, ureg_get_instruction_number(shader
));
364 ureg_ELSE(shader
, &label
);
365 ureg_TEX(shader
, result
, TGSI_TEXTURE_2D
, ureg_src(ref
[0]), sampler
[0]);
366 ureg_fixup_label(shader
, label
, ureg_get_instruction_number(shader
));
369 ureg_fixup_label(shader
, bi_label
, ureg_get_instruction_number(shader
));
370 ureg_ELSE(shader
, &bi_label
);
374 * ref[0..1] = tex(tc[0..1], sampler[0..1])
376 * ref[0..1] = tex(tc[2..3], sampler[0..1])
378 ureg_CMP(shader
, ureg_writemask(ref
[1], TGSI_WRITEMASK_XY
),
379 ureg_negate(ureg_scalar(ureg_src(field
), TGSI_SWIZZLE_Y
)),
381 ureg_TEX(shader
, ref
[0], TGSI_TEXTURE_2D
, ureg_src(ref
[0]), sampler
[0]);
382 ureg_TEX(shader
, ref
[1], TGSI_TEXTURE_2D
, ureg_src(ref
[1]), sampler
[1]);
384 ureg_LRP(shader
, ureg_writemask(result
, TGSI_WRITEMASK_XYZ
), ureg_imm1f(shader
, 0.5f
),
385 ureg_src(ref
[0]), ureg_src(ref
[1]));
387 ureg_fixup_label(shader
, bi_label
, ureg_get_instruction_number(shader
));
389 ureg_fixup_label(shader
, intra_label
, ureg_get_instruction_number(shader
));
392 for (i
= 0; i
< 2; ++i
)
393 ureg_release_temporary(shader
, ref
[i
]);
399 create_frag_shader(struct vl_mpeg12_mc_renderer
*r
)
401 struct ureg_program
*shader
;
402 struct ureg_dst result
;
403 struct ureg_dst field
, texel
;
404 struct ureg_dst fragment
;
406 shader
= ureg_create(TGSI_PROCESSOR_FRAGMENT
);
410 fragment
= ureg_DECL_output(shader
, TGSI_SEMANTIC_COLOR
, 0);
412 field
= calc_field(shader
);
413 texel
= fetch_ycbcr(r
, shader
, field
);
415 result
= fetch_ref(shader
, field
);
417 ureg_ADD(shader
, ureg_writemask(fragment
, TGSI_WRITEMASK_XYZ
), ureg_src(texel
), ureg_src(result
));
419 ureg_release_temporary(shader
, field
);
420 ureg_release_temporary(shader
, texel
);
421 ureg_release_temporary(shader
, result
);
424 return ureg_create_shader_and_destroy(shader
, r
->pipe
);
428 init_pipe_state(struct vl_mpeg12_mc_renderer
*r
)
430 struct pipe_sampler_state sampler
;
431 struct pipe_rasterizer_state rs_state
;
437 r
->viewport
.scale
[0] = r
->buffer_width
;
438 r
->viewport
.scale
[1] = r
->buffer_height
;
439 r
->viewport
.scale
[2] = 1;
440 r
->viewport
.scale
[3] = 1;
441 r
->viewport
.translate
[0] = 0;
442 r
->viewport
.translate
[1] = 0;
443 r
->viewport
.translate
[2] = 0;
444 r
->viewport
.translate
[3] = 0;
446 r
->fb_state
.width
= r
->buffer_width
;
447 r
->fb_state
.height
= r
->buffer_height
;
448 r
->fb_state
.nr_cbufs
= 1;
449 r
->fb_state
.zsbuf
= NULL
;
452 filters
[0] = PIPE_TEX_FILTER_NEAREST
;
454 if (r
->chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_444
|| true) { //TODO
455 filters
[1] = PIPE_TEX_FILTER_NEAREST
;
456 filters
[2] = PIPE_TEX_FILTER_NEAREST
;
459 filters
[1] = PIPE_TEX_FILTER_LINEAR
;
460 filters
[2] = PIPE_TEX_FILTER_LINEAR
;
462 /* Fwd, bkwd ref filters */
463 filters
[3] = PIPE_TEX_FILTER_LINEAR
;
464 filters
[4] = PIPE_TEX_FILTER_LINEAR
;
466 for (i
= 0; i
< 5; ++i
) {
467 memset(&sampler
, 0, sizeof(sampler
));
468 sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
469 sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
470 sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_BORDER
;
471 sampler
.min_img_filter
= filters
[i
];
472 sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NONE
;
473 sampler
.mag_img_filter
= filters
[i
];
474 sampler
.compare_mode
= PIPE_TEX_COMPARE_NONE
;
475 sampler
.compare_func
= PIPE_FUNC_ALWAYS
;
476 sampler
.normalized_coords
= 1;
477 /*sampler.shadow_ambient = ; */
478 /*sampler.lod_bias = ; */
480 /*sampler.max_lod = ; */
481 sampler
.border_color
[0] = 0.0f
;
482 sampler
.border_color
[1] = 0.0f
;
483 sampler
.border_color
[2] = 0.0f
;
484 sampler
.border_color
[3] = 0.0f
;
485 /*sampler.max_anisotropy = ; */
486 r
->samplers
.all
[i
] = r
->pipe
->create_sampler_state(r
->pipe
, &sampler
);
489 memset(&rs_state
, 0, sizeof(rs_state
));
490 /*rs_state.sprite_coord_enable */
491 rs_state
.sprite_coord_mode
= PIPE_SPRITE_COORD_UPPER_LEFT
;
492 rs_state
.point_quad_rasterization
= true;
493 rs_state
.point_size
= BLOCK_WIDTH
;
494 rs_state
.gl_rasterization_rules
= true;
495 r
->rs_state
= r
->pipe
->create_rasterizer_state(r
->pipe
, &rs_state
);
501 cleanup_pipe_state(struct vl_mpeg12_mc_renderer
*r
)
507 for (i
= 0; i
< 5; ++i
)
508 r
->pipe
->delete_sampler_state(r
->pipe
, r
->samplers
.all
[i
]);
510 r
->pipe
->delete_rasterizer_state(r
->pipe
, r
->rs_state
);
514 init_buffers(struct vl_mpeg12_mc_renderer
*r
)
516 struct pipe_resource
*idct_matrix
;
517 struct pipe_vertex_element vertex_elems
[NUM_VS_INPUTS
];
520 align(r
->buffer_width
, MACROBLOCK_WIDTH
) / MACROBLOCK_WIDTH
;
522 align(r
->buffer_height
, MACROBLOCK_HEIGHT
) / MACROBLOCK_HEIGHT
;
524 unsigned i
, chroma_width
, chroma_height
;
528 r
->macroblocks_per_batch
=
529 mbw
* (r
->bufmode
== VL_MPEG12_MC_RENDERER_BUFFER_PICTURE
? mbh
: 1);
531 if (!(idct_matrix
= vl_idct_upload_matrix(r
->pipe
)))
534 if (!vl_idct_init(&r
->idct_luma
, r
->pipe
, r
->buffer_width
, r
->buffer_height
, idct_matrix
))
537 if (r
->chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_420
) {
538 chroma_width
= r
->buffer_width
/ 2;
539 chroma_height
= r
->buffer_height
/ 2;
540 } else if (r
->chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_422
) {
541 chroma_width
= r
->buffer_width
;
542 chroma_height
= r
->buffer_height
/ 2;
544 chroma_width
= r
->buffer_width
;
545 chroma_height
= r
->buffer_height
;
548 if(!vl_idct_init(&r
->idct_chroma
, r
->pipe
, chroma_width
, chroma_height
, idct_matrix
))
551 memset(&vertex_elems
, 0, sizeof(vertex_elems
));
553 vertex_elems
[VS_I_RECT
] = vl_vb_get_quad_vertex_element();
554 r
->quad
= vl_vb_upload_quads(r
->pipe
, r
->macroblocks_per_batch
);
556 /* Position element */
557 vertex_elems
[VS_I_VPOS
].src_format
= PIPE_FORMAT_R16G16_SSCALED
;
559 for (i
= 0; i
< 4; ++i
)
560 /* motion vector 0..4 element */
561 vertex_elems
[VS_I_MV0
+ i
].src_format
= PIPE_FORMAT_R16G16_SSCALED
;
563 /* y, cr, cb empty block element top left block */
564 vertex_elems
[VS_I_EB_0_0
].src_format
= PIPE_FORMAT_R8G8B8A8_SSCALED
;
566 /* y, cr, cb empty block element top right block */
567 vertex_elems
[VS_I_EB_0_1
].src_format
= PIPE_FORMAT_R8G8B8A8_SSCALED
;
569 /* y, cr, cb empty block element bottom left block */
570 vertex_elems
[VS_I_EB_1_0
].src_format
= PIPE_FORMAT_R8G8B8A8_SSCALED
;
572 /* y, cr, cb empty block element bottom right block */
573 vertex_elems
[VS_I_EB_1_1
].src_format
= PIPE_FORMAT_R8G8B8A8_SSCALED
;
575 r
->vertex_stream_stride
= vl_vb_element_helper(&vertex_elems
[VS_I_VPOS
], 9, 1);
577 r
->vertex_elems_state
= r
->pipe
->create_vertex_elements_state(
578 r
->pipe
, NUM_VS_INPUTS
, vertex_elems
);
580 if (r
->vertex_elems_state
== NULL
)
583 r
->vs
= create_vert_shader(r
);
584 r
->fs
= create_frag_shader(r
);
586 if (r
->vs
== NULL
|| r
->fs
== NULL
)
593 cleanup_buffers(struct vl_mpeg12_mc_renderer
*r
)
597 r
->pipe
->delete_vs_state(r
->pipe
, r
->vs
);
598 r
->pipe
->delete_fs_state(r
->pipe
, r
->fs
);
600 vl_idct_cleanup(&r
->idct_luma
);
601 vl_idct_cleanup(&r
->idct_chroma
);
603 r
->pipe
->delete_vertex_elements_state(r
->pipe
, r
->vertex_elems_state
);
606 static struct pipe_sampler_view
607 *find_or_create_sampler_view(struct vl_mpeg12_mc_renderer
*r
, struct pipe_surface
*surface
)
609 struct pipe_sampler_view
*sampler_view
;
613 sampler_view
= (struct pipe_sampler_view
*)util_keymap_lookup(r
->texview_map
, &surface
);
615 struct pipe_sampler_view templat
;
616 boolean added_to_map
;
618 u_sampler_view_default_template(&templat
, surface
->texture
,
619 surface
->texture
->format
);
620 sampler_view
= r
->pipe
->create_sampler_view(r
->pipe
, surface
->texture
,
625 added_to_map
= util_keymap_insert(r
->texview_map
, &surface
,
626 sampler_view
, r
->pipe
);
627 assert(added_to_map
);
634 get_motion_vectors(struct pipe_mpeg12_macroblock
*mb
, struct vertex2s mv
[4])
636 switch (mb
->mb_type
) {
637 case PIPE_MPEG12_MACROBLOCK_TYPE_BI
:
639 if (mb
->mo_type
== PIPE_MPEG12_MOTION_TYPE_FRAME
) {
640 mv
[2].x
= mb
->pmv
[0][1][0];
641 mv
[2].y
= mb
->pmv
[0][1][1];
644 mv
[2].x
= mb
->pmv
[0][1][0];
645 mv
[2].y
= mb
->pmv
[0][1][1] - (mb
->pmv
[0][1][1] % 4);
647 mv
[3].x
= mb
->pmv
[1][1][0];
648 mv
[3].y
= mb
->pmv
[1][1][1] - (mb
->pmv
[1][1][1] % 4);
650 if(mb
->mvfs
[0][1]) mv
[2].y
+= 2;
651 if(!mb
->mvfs
[1][1]) mv
[3].y
-= 2;
656 case PIPE_MPEG12_MACROBLOCK_TYPE_FWD
:
657 case PIPE_MPEG12_MACROBLOCK_TYPE_BKWD
:
659 if (mb
->mb_type
== PIPE_MPEG12_MACROBLOCK_TYPE_BKWD
) {
661 if (mb
->mo_type
== PIPE_MPEG12_MOTION_TYPE_FRAME
) {
662 mv
[0].x
= mb
->pmv
[0][1][0];
663 mv
[0].y
= mb
->pmv
[0][1][1];
666 mv
[0].x
= mb
->pmv
[0][1][0];
667 mv
[0].y
= mb
->pmv
[0][1][1] - (mb
->pmv
[0][1][1] % 4);
669 mv
[1].x
= mb
->pmv
[1][1][0];
670 mv
[1].y
= mb
->pmv
[1][1][1] - (mb
->pmv
[1][1][1] % 4);
672 if(mb
->mvfs
[0][1]) mv
[0].y
+= 2;
673 if(!mb
->mvfs
[1][1]) mv
[1].y
-= 2;
678 if (mb
->mo_type
== PIPE_MPEG12_MOTION_TYPE_FRAME
) {
679 mv
[0].x
= mb
->pmv
[0][0][0];
680 mv
[0].y
= mb
->pmv
[0][0][1];
683 mv
[0].x
= mb
->pmv
[0][0][0];
684 mv
[0].y
= mb
->pmv
[0][0][1] - (mb
->pmv
[0][0][1] % 4);
686 mv
[1].x
= mb
->pmv
[1][0][0];
687 mv
[1].y
= mb
->pmv
[1][0][1] - (mb
->pmv
[1][0][1] % 4);
689 if(mb
->mvfs
[0][0]) mv
[0].y
+= 2;
690 if(!mb
->mvfs
[1][0]) mv
[1].y
-= 2;
700 grab_vectors(struct vl_mpeg12_mc_renderer
*r
,
701 struct vl_mpeg12_mc_buffer
*buffer
,
702 struct pipe_mpeg12_macroblock
*mb
)
704 struct vertex_stream stream
;
711 stream
.pos
.x
= mb
->mbx
;
712 stream
.pos
.y
= mb
->mby
;
713 for ( i
= 0; i
< 2; ++i
) {
714 for ( j
= 0; j
< 2; ++j
) {
715 stream
.eb
[i
][j
].y
= !(mb
->cbp
& (*r
->empty_block_mask
)[0][i
][j
]);
716 stream
.eb
[i
][j
].cr
= !(mb
->cbp
& (*r
->empty_block_mask
)[1][i
][j
]);
717 stream
.eb
[i
][j
].cb
= !(mb
->cbp
& (*r
->empty_block_mask
)[2][i
][j
]);
720 stream
.eb
[0][0].flag
= mb
->dct_type
== PIPE_MPEG12_DCT_TYPE_FIELD
;
721 stream
.eb
[0][1].flag
= mb
->mo_type
== PIPE_MPEG12_MOTION_TYPE_FRAME
;
722 stream
.eb
[1][0].flag
= mb
->mb_type
== PIPE_MPEG12_MACROBLOCK_TYPE_BKWD
;
723 switch (mb
->mb_type
) {
724 case PIPE_MPEG12_MACROBLOCK_TYPE_INTRA
:
725 stream
.eb
[1][1].flag
= -1;
728 case PIPE_MPEG12_MACROBLOCK_TYPE_FWD
:
729 case PIPE_MPEG12_MACROBLOCK_TYPE_BKWD
:
730 stream
.eb
[1][1].flag
= 1;
733 case PIPE_MPEG12_MACROBLOCK_TYPE_BI
:
734 stream
.eb
[1][1].flag
= 0;
741 get_motion_vectors(mb
, stream
.mv
);
742 vl_vb_add_block(&buffer
->vertex_stream
, &stream
);
746 grab_blocks(struct vl_mpeg12_mc_renderer
*r
,
747 struct vl_mpeg12_mc_buffer
*buffer
,
748 unsigned mbx
, unsigned mby
,
749 unsigned cbp
, short *blocks
)
757 for (y
= 0; y
< 2; ++y
) {
758 for (x
= 0; x
< 2; ++x
, ++tb
) {
759 if (cbp
& (*r
->empty_block_mask
)[0][y
][x
]) {
760 vl_idct_add_block(&buffer
->idct_y
, mbx
* 2 + x
, mby
* 2 + y
, blocks
);
761 blocks
+= BLOCK_WIDTH
* BLOCK_HEIGHT
;
766 /* TODO: Implement 422, 444 */
767 assert(r
->chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_420
);
769 for (tb
= 1; tb
< 3; ++tb
) {
770 if (cbp
& (*r
->empty_block_mask
)[tb
][0][0]) {
772 vl_idct_add_block(&buffer
->idct_cb
, mbx
, mby
, blocks
);
774 vl_idct_add_block(&buffer
->idct_cr
, mbx
, mby
, blocks
);
775 blocks
+= BLOCK_WIDTH
* BLOCK_HEIGHT
;
781 grab_macroblock(struct vl_mpeg12_mc_renderer
*r
,
782 struct vl_mpeg12_mc_buffer
*buffer
,
783 struct pipe_mpeg12_macroblock
*mb
)
788 assert(buffer
->num_macroblocks
< r
->macroblocks_per_batch
);
790 grab_vectors(r
, buffer
, mb
);
791 grab_blocks(r
, buffer
, mb
->mbx
, mb
->mby
, mb
->cbp
, mb
->blocks
);
793 ++buffer
->num_macroblocks
;
797 texview_map_delete(const struct keymap
*map
,
798 const void *key
, void *data
,
801 struct pipe_sampler_view
*sv
= (struct pipe_sampler_view
*)data
;
808 pipe_sampler_view_reference(&sv
, NULL
);
812 vl_mpeg12_mc_renderer_init(struct vl_mpeg12_mc_renderer
*renderer
,
813 struct pipe_context
*pipe
,
814 unsigned buffer_width
,
815 unsigned buffer_height
,
816 enum pipe_video_chroma_format chroma_format
,
817 enum VL_MPEG12_MC_RENDERER_BUFFER_MODE bufmode
)
822 /* TODO: Implement other policies */
823 assert(bufmode
== VL_MPEG12_MC_RENDERER_BUFFER_PICTURE
);
825 memset(renderer
, 0, sizeof(struct vl_mpeg12_mc_renderer
));
827 renderer
->pipe
= pipe
;
828 renderer
->buffer_width
= buffer_width
;
829 renderer
->buffer_height
= buffer_height
;
830 renderer
->chroma_format
= chroma_format
;
831 renderer
->bufmode
= bufmode
;
833 /* TODO: Implement 422, 444 */
834 assert(chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_420
);
835 renderer
->empty_block_mask
= &const_empty_block_mask_420
;
837 renderer
->texview_map
= util_new_keymap(sizeof(struct pipe_surface
*), -1,
839 if (!renderer
->texview_map
)
842 if (!init_pipe_state(renderer
))
843 goto error_pipe_state
;
845 if (!init_buffers(renderer
))
851 cleanup_pipe_state(renderer
);
854 util_delete_keymap(renderer
->texview_map
, renderer
->pipe
);
859 vl_mpeg12_mc_renderer_cleanup(struct vl_mpeg12_mc_renderer
*renderer
)
863 util_delete_keymap(renderer
->texview_map
, renderer
->pipe
);
864 cleanup_pipe_state(renderer
);
865 cleanup_buffers(renderer
);
869 vl_mpeg12_mc_init_buffer(struct vl_mpeg12_mc_renderer
*renderer
, struct vl_mpeg12_mc_buffer
*buffer
)
871 struct pipe_resource
template;
872 struct pipe_sampler_view sampler_view
;
876 assert(renderer
&& buffer
);
878 buffer
->surface
= NULL
;
880 buffer
->future
= NULL
;
881 buffer
->num_macroblocks
= 0;
883 memset(&template, 0, sizeof(struct pipe_resource
));
884 template.target
= PIPE_TEXTURE_2D
;
885 /* TODO: Accomodate HW that can't do this and also for cases when this isn't precise enough */
886 template.format
= PIPE_FORMAT_R16_SNORM
;
887 template.last_level
= 0;
888 template.width0
= renderer
->buffer_width
;
889 template.height0
= renderer
->buffer_height
;
891 template.array_size
= 1;
892 template.usage
= PIPE_USAGE_STATIC
;
893 template.bind
= PIPE_BIND_SAMPLER_VIEW
;
896 buffer
->textures
.individual
.y
= renderer
->pipe
->screen
->resource_create(renderer
->pipe
->screen
, &template);
898 if (!vl_idct_init_buffer(&renderer
->idct_luma
, &buffer
->idct_y
, buffer
->textures
.individual
.y
))
901 if (renderer
->chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_420
) {
902 template.width0
= renderer
->buffer_width
/ 2;
903 template.height0
= renderer
->buffer_height
/ 2;
905 else if (renderer
->chroma_format
== PIPE_VIDEO_CHROMA_FORMAT_422
)
906 template.height0
= renderer
->buffer_height
/ 2;
908 buffer
->textures
.individual
.cb
=
909 renderer
->pipe
->screen
->resource_create(renderer
->pipe
->screen
, &template);
910 buffer
->textures
.individual
.cr
=
911 renderer
->pipe
->screen
->resource_create(renderer
->pipe
->screen
, &template);
913 if (!vl_idct_init_buffer(&renderer
->idct_chroma
, &buffer
->idct_cb
, buffer
->textures
.individual
.cb
))
916 if (!vl_idct_init_buffer(&renderer
->idct_chroma
, &buffer
->idct_cr
, buffer
->textures
.individual
.cr
))
919 for (i
= 0; i
< 3; ++i
) {
920 u_sampler_view_default_template(&sampler_view
,
921 buffer
->textures
.all
[i
],
922 buffer
->textures
.all
[i
]->format
);
923 sampler_view
.swizzle_r
= i
== 0 ? PIPE_SWIZZLE_RED
: PIPE_SWIZZLE_ZERO
;
924 sampler_view
.swizzle_g
= i
== 1 ? PIPE_SWIZZLE_RED
: PIPE_SWIZZLE_ZERO
;
925 sampler_view
.swizzle_b
= i
== 2 ? PIPE_SWIZZLE_RED
: PIPE_SWIZZLE_ZERO
;
926 sampler_view
.swizzle_a
= PIPE_SWIZZLE_ONE
;
927 buffer
->sampler_views
.all
[i
] = renderer
->pipe
->create_sampler_view(
928 renderer
->pipe
, buffer
->textures
.all
[i
], &sampler_view
);
931 buffer
->vertex_bufs
.individual
.quad
.stride
= renderer
->quad
.stride
;
932 buffer
->vertex_bufs
.individual
.quad
.buffer_offset
= renderer
->quad
.buffer_offset
;
933 pipe_resource_reference(&buffer
->vertex_bufs
.individual
.quad
.buffer
, renderer
->quad
.buffer
);
935 buffer
->vertex_bufs
.individual
.stream
= vl_vb_init(
936 &buffer
->vertex_stream
, renderer
->pipe
, renderer
->macroblocks_per_batch
,
937 renderer
->vertex_stream_stride
);
943 vl_mpeg12_mc_cleanup_buffer(struct vl_mpeg12_mc_renderer
*renderer
, struct vl_mpeg12_mc_buffer
*buffer
)
947 assert(renderer
&& buffer
);
949 for (i
= 0; i
< 3; ++i
) {
950 pipe_sampler_view_reference(&buffer
->sampler_views
.all
[i
], NULL
);
951 pipe_resource_reference(&buffer
->vertex_bufs
.all
[i
].buffer
, NULL
);
952 pipe_resource_reference(&buffer
->textures
.all
[i
], NULL
);
955 pipe_resource_reference(&buffer
->vertex_bufs
.individual
.quad
.buffer
, NULL
);
956 vl_vb_cleanup(&buffer
->vertex_stream
);
958 vl_idct_cleanup_buffer(&renderer
->idct_luma
, &buffer
->idct_y
);
959 vl_idct_cleanup_buffer(&renderer
->idct_chroma
, &buffer
->idct_cb
);
960 vl_idct_cleanup_buffer(&renderer
->idct_chroma
, &buffer
->idct_cr
);
962 pipe_surface_reference(&buffer
->surface
, NULL
);
963 pipe_surface_reference(&buffer
->past
, NULL
);
964 pipe_surface_reference(&buffer
->future
, NULL
);
968 vl_mpeg12_mc_map_buffer(struct vl_mpeg12_mc_renderer
*renderer
, struct vl_mpeg12_mc_buffer
*buffer
)
970 assert(renderer
&& buffer
);
972 vl_idct_map_buffers(&renderer
->idct_luma
, &buffer
->idct_y
);
973 vl_idct_map_buffers(&renderer
->idct_chroma
, &buffer
->idct_cr
);
974 vl_idct_map_buffers(&renderer
->idct_chroma
, &buffer
->idct_cb
);
976 vl_vb_map(&buffer
->vertex_stream
, renderer
->pipe
);
980 vl_mpeg12_mc_renderer_render_macroblocks(struct vl_mpeg12_mc_renderer
*renderer
,
981 struct vl_mpeg12_mc_buffer
*buffer
,
982 struct pipe_surface
*surface
,
983 struct pipe_surface
*past
,
984 struct pipe_surface
*future
,
985 unsigned num_macroblocks
,
986 struct pipe_mpeg12_macroblock
*mpeg12_macroblocks
,
987 struct pipe_fence_handle
**fence
)
989 assert(renderer
&& buffer
);
991 assert(num_macroblocks
);
992 assert(mpeg12_macroblocks
);
994 if (surface
!= buffer
->surface
) {
995 pipe_surface_reference(&buffer
->surface
, surface
);
996 pipe_surface_reference(&buffer
->past
, past
);
997 pipe_surface_reference(&buffer
->future
, future
);
998 buffer
->fence
= fence
;
1000 /* If the surface we're rendering hasn't changed the ref frames shouldn't change. */
1001 assert(buffer
->past
== past
);
1002 assert(buffer
->future
== future
);
1005 while (num_macroblocks
) {
1006 unsigned left_in_batch
= renderer
->macroblocks_per_batch
- buffer
->num_macroblocks
;
1007 unsigned num_to_submit
= MIN2(num_macroblocks
, left_in_batch
);
1010 for (i
= 0; i
< num_to_submit
; ++i
) {
1011 assert(mpeg12_macroblocks
[i
].base
.codec
== PIPE_VIDEO_CODEC_MPEG12
);
1012 grab_macroblock(renderer
, buffer
, &mpeg12_macroblocks
[i
]);
1015 num_macroblocks
-= num_to_submit
;
1017 if (buffer
->num_macroblocks
== renderer
->macroblocks_per_batch
) {
1018 vl_mpeg12_mc_unmap_buffer(renderer
, buffer
);
1019 vl_mpeg12_mc_renderer_flush(renderer
, buffer
);
1020 pipe_surface_reference(&buffer
->surface
, surface
);
1021 pipe_surface_reference(&buffer
->past
, past
);
1022 pipe_surface_reference(&buffer
->future
, future
);
1023 vl_mpeg12_mc_map_buffer(renderer
, buffer
);
1029 vl_mpeg12_mc_unmap_buffer(struct vl_mpeg12_mc_renderer
*renderer
, struct vl_mpeg12_mc_buffer
*buffer
)
1031 assert(renderer
&& buffer
);
1033 vl_idct_unmap_buffers(&renderer
->idct_luma
, &buffer
->idct_y
);
1034 vl_idct_unmap_buffers(&renderer
->idct_chroma
, &buffer
->idct_cr
);
1035 vl_idct_unmap_buffers(&renderer
->idct_chroma
, &buffer
->idct_cb
);
1037 vl_vb_unmap(&buffer
->vertex_stream
, renderer
->pipe
);
1041 vl_mpeg12_mc_renderer_flush(struct vl_mpeg12_mc_renderer
*renderer
, struct vl_mpeg12_mc_buffer
*buffer
)
1043 assert(renderer
&& buffer
);
1044 assert(buffer
->num_macroblocks
<= renderer
->macroblocks_per_batch
);
1046 if (buffer
->num_macroblocks
== 0)
1049 vl_idct_flush(&renderer
->idct_luma
, &buffer
->idct_y
);
1050 vl_idct_flush(&renderer
->idct_chroma
, &buffer
->idct_cr
);
1051 vl_idct_flush(&renderer
->idct_chroma
, &buffer
->idct_cb
);
1053 vl_vb_restart(&buffer
->vertex_stream
);
1055 renderer
->fb_state
.cbufs
[0] = buffer
->surface
;
1056 renderer
->pipe
->bind_rasterizer_state(renderer
->pipe
, renderer
->rs_state
);
1057 renderer
->pipe
->set_framebuffer_state(renderer
->pipe
, &renderer
->fb_state
);
1058 renderer
->pipe
->set_viewport_state(renderer
->pipe
, &renderer
->viewport
);
1059 renderer
->pipe
->set_vertex_buffers(renderer
->pipe
, 2, buffer
->vertex_bufs
.all
);
1060 renderer
->pipe
->bind_vertex_elements_state(renderer
->pipe
, renderer
->vertex_elems_state
);
1063 buffer
->textures
.individual
.ref
[0] = buffer
->past
->texture
;
1064 buffer
->sampler_views
.individual
.ref
[0] = find_or_create_sampler_view(renderer
, buffer
->past
);
1066 buffer
->textures
.individual
.ref
[0] = buffer
->surface
->texture
;
1067 buffer
->sampler_views
.individual
.ref
[0] = find_or_create_sampler_view(renderer
, buffer
->surface
);
1070 if (buffer
->future
) {
1071 buffer
->textures
.individual
.ref
[1] = buffer
->future
->texture
;
1072 buffer
->sampler_views
.individual
.ref
[1] = find_or_create_sampler_view(renderer
, buffer
->future
);
1074 buffer
->textures
.individual
.ref
[1] = buffer
->surface
->texture
;
1075 buffer
->sampler_views
.individual
.ref
[1] = find_or_create_sampler_view(renderer
, buffer
->surface
);
1078 renderer
->pipe
->set_fragment_sampler_views(renderer
->pipe
, 5, buffer
->sampler_views
.all
);
1079 renderer
->pipe
->bind_fragment_sampler_states(renderer
->pipe
, 5, renderer
->samplers
.all
);
1081 renderer
->pipe
->bind_vs_state(renderer
->pipe
, renderer
->vs
);
1082 renderer
->pipe
->bind_fs_state(renderer
->pipe
, renderer
->fs
);
1083 util_draw_arrays(renderer
->pipe
, PIPE_PRIM_QUADS
, 0, buffer
->num_macroblocks
* 4);
1085 renderer
->pipe
->flush(renderer
->pipe
, PIPE_FLUSH_RENDER_CACHE
, buffer
->fence
);
1087 /* Next time we get this surface it may have new ref frames */
1088 pipe_surface_reference(&buffer
->surface
, NULL
);
1089 pipe_surface_reference(&buffer
->past
, NULL
);
1090 pipe_surface_reference(&buffer
->future
, NULL
);
1092 buffer
->num_macroblocks
= 0;