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[mesa.git] / src / gallium / drivers / v3d / v3dx_emit.c
1 /*
2 * Copyright © 2014-2017 Broadcom
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include "util/format/u_format.h"
25 #include "util/u_half.h"
26 #include "v3d_context.h"
27 #include "broadcom/common/v3d_macros.h"
28 #include "broadcom/cle/v3dx_pack.h"
29 #include "broadcom/compiler/v3d_compiler.h"
30
31 static uint8_t
32 v3d_factor(enum pipe_blendfactor factor, bool dst_alpha_one)
33 {
34 /* We may get a bad blendfactor when blending is disabled. */
35 if (factor == 0)
36 return V3D_BLEND_FACTOR_ZERO;
37
38 switch (factor) {
39 case PIPE_BLENDFACTOR_ZERO:
40 return V3D_BLEND_FACTOR_ZERO;
41 case PIPE_BLENDFACTOR_ONE:
42 return V3D_BLEND_FACTOR_ONE;
43 case PIPE_BLENDFACTOR_SRC_COLOR:
44 return V3D_BLEND_FACTOR_SRC_COLOR;
45 case PIPE_BLENDFACTOR_INV_SRC_COLOR:
46 return V3D_BLEND_FACTOR_INV_SRC_COLOR;
47 case PIPE_BLENDFACTOR_DST_COLOR:
48 return V3D_BLEND_FACTOR_DST_COLOR;
49 case PIPE_BLENDFACTOR_INV_DST_COLOR:
50 return V3D_BLEND_FACTOR_INV_DST_COLOR;
51 case PIPE_BLENDFACTOR_SRC_ALPHA:
52 return V3D_BLEND_FACTOR_SRC_ALPHA;
53 case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
54 return V3D_BLEND_FACTOR_INV_SRC_ALPHA;
55 case PIPE_BLENDFACTOR_DST_ALPHA:
56 return (dst_alpha_one ?
57 V3D_BLEND_FACTOR_ONE :
58 V3D_BLEND_FACTOR_DST_ALPHA);
59 case PIPE_BLENDFACTOR_INV_DST_ALPHA:
60 return (dst_alpha_one ?
61 V3D_BLEND_FACTOR_ZERO :
62 V3D_BLEND_FACTOR_INV_DST_ALPHA);
63 case PIPE_BLENDFACTOR_CONST_COLOR:
64 return V3D_BLEND_FACTOR_CONST_COLOR;
65 case PIPE_BLENDFACTOR_INV_CONST_COLOR:
66 return V3D_BLEND_FACTOR_INV_CONST_COLOR;
67 case PIPE_BLENDFACTOR_CONST_ALPHA:
68 return V3D_BLEND_FACTOR_CONST_ALPHA;
69 case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
70 return V3D_BLEND_FACTOR_INV_CONST_ALPHA;
71 case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
72 return (dst_alpha_one ?
73 V3D_BLEND_FACTOR_ZERO :
74 V3D_BLEND_FACTOR_SRC_ALPHA_SATURATE);
75 default:
76 unreachable("Bad blend factor");
77 }
78 }
79
80 static inline uint16_t
81 swizzled_border_color(const struct v3d_device_info *devinfo,
82 struct pipe_sampler_state *sampler,
83 struct v3d_sampler_view *sview,
84 int chan)
85 {
86 const struct util_format_description *desc =
87 util_format_description(sview->base.format);
88 uint8_t swiz = chan;
89
90 /* If we're doing swizzling in the sampler, then only rearrange the
91 * border color for the mismatch between the VC5 texture format and
92 * the PIPE_FORMAT, since GL_ARB_texture_swizzle will be handled by
93 * the sampler's swizzle.
94 *
95 * For swizzling in the shader, we don't do any pre-swizzling of the
96 * border color.
97 */
98 if (v3d_get_tex_return_size(devinfo, sview->base.format,
99 sampler->compare_mode) != 32)
100 swiz = desc->swizzle[swiz];
101
102 switch (swiz) {
103 case PIPE_SWIZZLE_0:
104 return util_float_to_half(0.0);
105 case PIPE_SWIZZLE_1:
106 return util_float_to_half(1.0);
107 default:
108 return util_float_to_half(sampler->border_color.f[swiz]);
109 }
110 }
111
112 #if V3D_VERSION < 40
113 static uint32_t
114 translate_swizzle(unsigned char pipe_swizzle)
115 {
116 switch (pipe_swizzle) {
117 case PIPE_SWIZZLE_0:
118 return 0;
119 case PIPE_SWIZZLE_1:
120 return 1;
121 case PIPE_SWIZZLE_X:
122 case PIPE_SWIZZLE_Y:
123 case PIPE_SWIZZLE_Z:
124 case PIPE_SWIZZLE_W:
125 return 2 + pipe_swizzle;
126 default:
127 unreachable("unknown swizzle");
128 }
129 }
130
131 static void
132 emit_one_texture(struct v3d_context *v3d, struct v3d_texture_stateobj *stage_tex,
133 int i)
134 {
135 struct v3d_job *job = v3d->job;
136 struct pipe_sampler_state *psampler = stage_tex->samplers[i];
137 struct v3d_sampler_state *sampler = v3d_sampler_state(psampler);
138 struct pipe_sampler_view *psview = stage_tex->textures[i];
139 struct v3d_sampler_view *sview = v3d_sampler_view(psview);
140 struct pipe_resource *prsc = psview->texture;
141 struct v3d_resource *rsc = v3d_resource(prsc);
142 const struct v3d_device_info *devinfo = &v3d->screen->devinfo;
143
144 stage_tex->texture_state[i].offset =
145 v3d_cl_ensure_space(&job->indirect,
146 cl_packet_length(TEXTURE_SHADER_STATE),
147 32);
148 v3d_bo_set_reference(&stage_tex->texture_state[i].bo,
149 job->indirect.bo);
150
151 uint32_t return_size = v3d_get_tex_return_size(devinfo, psview->format,
152 psampler->compare_mode);
153
154 struct V3D33_TEXTURE_SHADER_STATE unpacked = {
155 /* XXX */
156 .border_color_red = swizzled_border_color(devinfo, psampler,
157 sview, 0),
158 .border_color_green = swizzled_border_color(devinfo, psampler,
159 sview, 1),
160 .border_color_blue = swizzled_border_color(devinfo, psampler,
161 sview, 2),
162 .border_color_alpha = swizzled_border_color(devinfo, psampler,
163 sview, 3),
164
165 /* In the normal texturing path, the LOD gets clamped between
166 * min/max, and the base_level field (set in the sampler view
167 * from first_level) only decides where the min/mag switch
168 * happens, so we need to use the LOD clamps to keep us
169 * between min and max.
170 *
171 * For txf, the LOD clamp is still used, despite GL not
172 * wanting that. We will need to have a separate
173 * TEXTURE_SHADER_STATE that ignores psview->min/max_lod to
174 * support txf properly.
175 */
176 .min_level_of_detail = MIN2(psview->u.tex.first_level +
177 MAX2(psampler->min_lod, 0),
178 psview->u.tex.last_level),
179 .max_level_of_detail = MIN2(psview->u.tex.first_level +
180 psampler->max_lod,
181 psview->u.tex.last_level),
182
183 .texture_base_pointer = cl_address(rsc->bo,
184 rsc->slices[0].offset),
185
186 .output_32_bit = return_size == 32,
187 };
188
189 /* Set up the sampler swizzle if we're doing 16-bit sampling. For
190 * 32-bit, we leave swizzling up to the shader compiler.
191 *
192 * Note: Contrary to the docs, the swizzle still applies even if the
193 * return size is 32. It's just that you probably want to swizzle in
194 * the shader, because you need the Y/Z/W channels to be defined.
195 */
196 if (return_size == 32) {
197 unpacked.swizzle_r = translate_swizzle(PIPE_SWIZZLE_X);
198 unpacked.swizzle_g = translate_swizzle(PIPE_SWIZZLE_Y);
199 unpacked.swizzle_b = translate_swizzle(PIPE_SWIZZLE_Z);
200 unpacked.swizzle_a = translate_swizzle(PIPE_SWIZZLE_W);
201 } else {
202 unpacked.swizzle_r = translate_swizzle(sview->swizzle[0]);
203 unpacked.swizzle_g = translate_swizzle(sview->swizzle[1]);
204 unpacked.swizzle_b = translate_swizzle(sview->swizzle[2]);
205 unpacked.swizzle_a = translate_swizzle(sview->swizzle[3]);
206 }
207
208 int min_img_filter = psampler->min_img_filter;
209 int min_mip_filter = psampler->min_mip_filter;
210 int mag_img_filter = psampler->mag_img_filter;
211
212 if (return_size == 32) {
213 min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
214 min_img_filter = PIPE_TEX_FILTER_NEAREST;
215 mag_img_filter = PIPE_TEX_FILTER_NEAREST;
216 }
217
218 bool min_nearest = min_img_filter == PIPE_TEX_FILTER_NEAREST;
219 switch (min_mip_filter) {
220 case PIPE_TEX_MIPFILTER_NONE:
221 unpacked.filter += min_nearest ? 2 : 0;
222 break;
223 case PIPE_TEX_MIPFILTER_NEAREST:
224 unpacked.filter += min_nearest ? 4 : 8;
225 break;
226 case PIPE_TEX_MIPFILTER_LINEAR:
227 unpacked.filter += min_nearest ? 4 : 8;
228 unpacked.filter += 2;
229 break;
230 }
231
232 if (mag_img_filter == PIPE_TEX_FILTER_NEAREST)
233 unpacked.filter++;
234
235 if (psampler->max_anisotropy > 8)
236 unpacked.filter = V3D_TMU_FILTER_ANISOTROPIC_16_1;
237 else if (psampler->max_anisotropy > 4)
238 unpacked.filter = V3D_TMU_FILTER_ANISOTROPIC_8_1;
239 else if (psampler->max_anisotropy > 2)
240 unpacked.filter = V3D_TMU_FILTER_ANISOTROPIC_4_1;
241 else if (psampler->max_anisotropy)
242 unpacked.filter = V3D_TMU_FILTER_ANISOTROPIC_2_1;
243
244 uint8_t packed[cl_packet_length(TEXTURE_SHADER_STATE)];
245 cl_packet_pack(TEXTURE_SHADER_STATE)(&job->indirect, packed, &unpacked);
246
247 for (int i = 0; i < ARRAY_SIZE(packed); i++)
248 packed[i] |= sview->texture_shader_state[i] | sampler->texture_shader_state[i];
249
250 /* TMU indirect structs need to be 32b aligned. */
251 v3d_cl_ensure_space(&job->indirect, ARRAY_SIZE(packed), 32);
252 cl_emit_prepacked(&job->indirect, &packed);
253 }
254
255 static void
256 emit_textures(struct v3d_context *v3d, struct v3d_texture_stateobj *stage_tex)
257 {
258 for (int i = 0; i < stage_tex->num_textures; i++) {
259 if (stage_tex->textures[i])
260 emit_one_texture(v3d, stage_tex, i);
261 }
262 }
263 #endif /* V3D_VERSION < 40 */
264
265 static uint32_t
266 translate_colormask(struct v3d_context *v3d, uint32_t colormask, int rt)
267 {
268 if (v3d->swap_color_rb & (1 << rt)) {
269 colormask = ((colormask & (2 | 8)) |
270 ((colormask & 1) << 2) |
271 ((colormask & 4) >> 2));
272 }
273
274 return (~colormask) & 0xf;
275 }
276
277 static void
278 emit_rt_blend(struct v3d_context *v3d, struct v3d_job *job,
279 struct pipe_blend_state *blend, int rt)
280 {
281 struct pipe_rt_blend_state *rtblend = &blend->rt[rt];
282
283 #if V3D_VERSION >= 40
284 /* We don't need to emit blend state for disabled RTs. */
285 if (!rtblend->blend_enable)
286 return;
287 #endif
288
289 cl_emit(&job->bcl, BLEND_CFG, config) {
290 #if V3D_VERSION >= 40
291 if (blend->independent_blend_enable)
292 config.render_target_mask = 1 << rt;
293 else
294 config.render_target_mask = (1 << V3D_MAX_DRAW_BUFFERS) - 1;
295 #else
296 assert(rt == 0);
297 #endif
298
299 config.color_blend_mode = rtblend->rgb_func;
300 config.color_blend_dst_factor =
301 v3d_factor(rtblend->rgb_dst_factor,
302 v3d->blend_dst_alpha_one);
303 config.color_blend_src_factor =
304 v3d_factor(rtblend->rgb_src_factor,
305 v3d->blend_dst_alpha_one);
306
307 config.alpha_blend_mode = rtblend->alpha_func;
308 config.alpha_blend_dst_factor =
309 v3d_factor(rtblend->alpha_dst_factor,
310 v3d->blend_dst_alpha_one);
311 config.alpha_blend_src_factor =
312 v3d_factor(rtblend->alpha_src_factor,
313 v3d->blend_dst_alpha_one);
314 }
315 }
316
317 static void
318 emit_flat_shade_flags(struct v3d_job *job,
319 int varying_offset,
320 uint32_t varyings,
321 enum V3DX(Varying_Flags_Action) lower,
322 enum V3DX(Varying_Flags_Action) higher)
323 {
324 cl_emit(&job->bcl, FLAT_SHADE_FLAGS, flags) {
325 flags.varying_offset_v0 = varying_offset;
326 flags.flat_shade_flags_for_varyings_v024 = varyings;
327 flags.action_for_flat_shade_flags_of_lower_numbered_varyings =
328 lower;
329 flags.action_for_flat_shade_flags_of_higher_numbered_varyings =
330 higher;
331 }
332 }
333
334 #if V3D_VERSION >= 40
335 static void
336 emit_noperspective_flags(struct v3d_job *job,
337 int varying_offset,
338 uint32_t varyings,
339 enum V3DX(Varying_Flags_Action) lower,
340 enum V3DX(Varying_Flags_Action) higher)
341 {
342 cl_emit(&job->bcl, NON_PERSPECTIVE_FLAGS, flags) {
343 flags.varying_offset_v0 = varying_offset;
344 flags.non_perspective_flags_for_varyings_v024 = varyings;
345 flags.action_for_non_perspective_flags_of_lower_numbered_varyings =
346 lower;
347 flags.action_for_non_perspective_flags_of_higher_numbered_varyings =
348 higher;
349 }
350 }
351
352 static void
353 emit_centroid_flags(struct v3d_job *job,
354 int varying_offset,
355 uint32_t varyings,
356 enum V3DX(Varying_Flags_Action) lower,
357 enum V3DX(Varying_Flags_Action) higher)
358 {
359 cl_emit(&job->bcl, CENTROID_FLAGS, flags) {
360 flags.varying_offset_v0 = varying_offset;
361 flags.centroid_flags_for_varyings_v024 = varyings;
362 flags.action_for_centroid_flags_of_lower_numbered_varyings =
363 lower;
364 flags.action_for_centroid_flags_of_higher_numbered_varyings =
365 higher;
366 }
367 }
368 #endif /* V3D_VERSION >= 40 */
369
370 static bool
371 emit_varying_flags(struct v3d_job *job, uint32_t *flags,
372 void (*flag_emit_callback)(struct v3d_job *job,
373 int varying_offset,
374 uint32_t flags,
375 enum V3DX(Varying_Flags_Action) lower,
376 enum V3DX(Varying_Flags_Action) higher))
377 {
378 struct v3d_context *v3d = job->v3d;
379 bool emitted_any = false;
380
381 for (int i = 0; i < ARRAY_SIZE(v3d->prog.fs->prog_data.fs->flat_shade_flags); i++) {
382 if (!flags[i])
383 continue;
384
385 if (emitted_any) {
386 flag_emit_callback(job, i, flags[i],
387 V3D_VARYING_FLAGS_ACTION_UNCHANGED,
388 V3D_VARYING_FLAGS_ACTION_UNCHANGED);
389 } else if (i == 0) {
390 flag_emit_callback(job, i, flags[i],
391 V3D_VARYING_FLAGS_ACTION_UNCHANGED,
392 V3D_VARYING_FLAGS_ACTION_ZEROED);
393 } else {
394 flag_emit_callback(job, i, flags[i],
395 V3D_VARYING_FLAGS_ACTION_ZEROED,
396 V3D_VARYING_FLAGS_ACTION_ZEROED);
397 }
398 emitted_any = true;
399 }
400
401 return emitted_any;
402 }
403
404 static inline struct v3d_uncompiled_shader *
405 get_tf_shader(struct v3d_context *v3d)
406 {
407 if (v3d->prog.bind_gs)
408 return v3d->prog.bind_gs;
409 else
410 return v3d->prog.bind_vs;
411 }
412
413 void
414 v3dX(emit_state)(struct pipe_context *pctx)
415 {
416 struct v3d_context *v3d = v3d_context(pctx);
417 struct v3d_job *job = v3d->job;
418 bool rasterizer_discard = v3d->rasterizer->base.rasterizer_discard;
419
420 if (v3d->dirty & (VC5_DIRTY_SCISSOR | VC5_DIRTY_VIEWPORT |
421 VC5_DIRTY_RASTERIZER)) {
422 float *vpscale = v3d->viewport.scale;
423 float *vptranslate = v3d->viewport.translate;
424 float vp_minx = -fabsf(vpscale[0]) + vptranslate[0];
425 float vp_maxx = fabsf(vpscale[0]) + vptranslate[0];
426 float vp_miny = -fabsf(vpscale[1]) + vptranslate[1];
427 float vp_maxy = fabsf(vpscale[1]) + vptranslate[1];
428
429 /* Clip to the scissor if it's enabled, but still clip to the
430 * drawable regardless since that controls where the binner
431 * tries to put things.
432 *
433 * Additionally, always clip the rendering to the viewport,
434 * since the hardware does guardband clipping, meaning
435 * primitives would rasterize outside of the view volume.
436 */
437 uint32_t minx, miny, maxx, maxy;
438 if (!v3d->rasterizer->base.scissor) {
439 minx = MAX2(vp_minx, 0);
440 miny = MAX2(vp_miny, 0);
441 maxx = MIN2(vp_maxx, job->draw_width);
442 maxy = MIN2(vp_maxy, job->draw_height);
443 } else {
444 minx = MAX2(vp_minx, v3d->scissor.minx);
445 miny = MAX2(vp_miny, v3d->scissor.miny);
446 maxx = MIN2(vp_maxx, v3d->scissor.maxx);
447 maxy = MIN2(vp_maxy, v3d->scissor.maxy);
448 }
449
450 cl_emit(&job->bcl, CLIP_WINDOW, clip) {
451 clip.clip_window_left_pixel_coordinate = minx;
452 clip.clip_window_bottom_pixel_coordinate = miny;
453 if (maxx > minx && maxy > miny) {
454 clip.clip_window_width_in_pixels = maxx - minx;
455 clip.clip_window_height_in_pixels = maxy - miny;
456 } else if (V3D_VERSION < 41) {
457 /* The HW won't entirely clip out when scissor
458 * w/h is 0. Just treat it the same as
459 * rasterizer discard.
460 */
461 rasterizer_discard = true;
462 clip.clip_window_width_in_pixels = 1;
463 clip.clip_window_height_in_pixels = 1;
464 }
465 }
466
467 job->draw_min_x = MIN2(job->draw_min_x, minx);
468 job->draw_min_y = MIN2(job->draw_min_y, miny);
469 job->draw_max_x = MAX2(job->draw_max_x, maxx);
470 job->draw_max_y = MAX2(job->draw_max_y, maxy);
471 }
472
473 if (v3d->dirty & (VC5_DIRTY_RASTERIZER |
474 VC5_DIRTY_ZSA |
475 VC5_DIRTY_BLEND |
476 VC5_DIRTY_COMPILED_FS)) {
477 cl_emit(&job->bcl, CFG_BITS, config) {
478 config.enable_forward_facing_primitive =
479 !rasterizer_discard &&
480 !(v3d->rasterizer->base.cull_face &
481 PIPE_FACE_FRONT);
482 config.enable_reverse_facing_primitive =
483 !rasterizer_discard &&
484 !(v3d->rasterizer->base.cull_face &
485 PIPE_FACE_BACK);
486 /* This seems backwards, but it's what gets the
487 * clipflat test to pass.
488 */
489 config.clockwise_primitives =
490 v3d->rasterizer->base.front_ccw;
491
492 config.enable_depth_offset =
493 v3d->rasterizer->base.offset_tri;
494
495 /* V3D follows GL behavior where the sample mask only
496 * applies when MSAA is enabled. Gallium has sample
497 * mask apply anyway, and the MSAA blit shaders will
498 * set sample mask without explicitly setting
499 * rasterizer oversample. Just force it on here,
500 * since the blit shaders are the only way to have
501 * !multisample && samplemask != 0xf.
502 */
503 config.rasterizer_oversample_mode =
504 v3d->rasterizer->base.multisample ||
505 v3d->sample_mask != 0xf;
506
507 config.direct3d_provoking_vertex =
508 v3d->rasterizer->base.flatshade_first;
509
510 config.blend_enable = v3d->blend->blend_enables;
511
512 /* Note: EZ state may update based on the compiled FS,
513 * along with ZSA
514 */
515 config.early_z_updates_enable =
516 (job->ez_state != VC5_EZ_DISABLED);
517 if (v3d->zsa->base.depth.enabled) {
518 config.z_updates_enable =
519 v3d->zsa->base.depth.writemask;
520 config.early_z_enable =
521 config.early_z_updates_enable;
522 config.depth_test_function =
523 v3d->zsa->base.depth.func;
524 } else {
525 config.depth_test_function = PIPE_FUNC_ALWAYS;
526 }
527
528 config.stencil_enable =
529 v3d->zsa->base.stencil[0].enabled;
530 }
531
532 }
533
534 if (v3d->dirty & VC5_DIRTY_RASTERIZER &&
535 v3d->rasterizer->base.offset_tri) {
536 if (job->zsbuf &&
537 job->zsbuf->format == PIPE_FORMAT_Z16_UNORM) {
538 cl_emit_prepacked_sized(&job->bcl,
539 v3d->rasterizer->depth_offset_z16,
540 cl_packet_length(DEPTH_OFFSET));
541 } else {
542 cl_emit_prepacked_sized(&job->bcl,
543 v3d->rasterizer->depth_offset,
544 cl_packet_length(DEPTH_OFFSET));
545 }
546 }
547
548 if (v3d->dirty & VC5_DIRTY_RASTERIZER) {
549 cl_emit(&job->bcl, POINT_SIZE, point_size) {
550 point_size.point_size = v3d->rasterizer->point_size;
551 }
552
553 cl_emit(&job->bcl, LINE_WIDTH, line_width) {
554 line_width.line_width = v3d->rasterizer->base.line_width;
555 }
556 }
557
558 if (v3d->dirty & VC5_DIRTY_VIEWPORT) {
559 cl_emit(&job->bcl, CLIPPER_XY_SCALING, clip) {
560 clip.viewport_half_width_in_1_256th_of_pixel =
561 v3d->viewport.scale[0] * 256.0f;
562 clip.viewport_half_height_in_1_256th_of_pixel =
563 v3d->viewport.scale[1] * 256.0f;
564 }
565
566 cl_emit(&job->bcl, CLIPPER_Z_SCALE_AND_OFFSET, clip) {
567 clip.viewport_z_offset_zc_to_zs =
568 v3d->viewport.translate[2];
569 clip.viewport_z_scale_zc_to_zs =
570 v3d->viewport.scale[2];
571 }
572 cl_emit(&job->bcl, CLIPPER_Z_MIN_MAX_CLIPPING_PLANES, clip) {
573 float z1 = (v3d->viewport.translate[2] -
574 v3d->viewport.scale[2]);
575 float z2 = (v3d->viewport.translate[2] +
576 v3d->viewport.scale[2]);
577 clip.minimum_zw = MIN2(z1, z2);
578 clip.maximum_zw = MAX2(z1, z2);
579 }
580
581 cl_emit(&job->bcl, VIEWPORT_OFFSET, vp) {
582 vp.viewport_centre_x_coordinate =
583 v3d->viewport.translate[0];
584 vp.viewport_centre_y_coordinate =
585 v3d->viewport.translate[1];
586 }
587 }
588
589 if (v3d->dirty & VC5_DIRTY_BLEND) {
590 struct v3d_blend_state *blend = v3d->blend;
591
592 if (blend->blend_enables) {
593 #if V3D_VERSION >= 40
594 cl_emit(&job->bcl, BLEND_ENABLES, enables) {
595 enables.mask = blend->blend_enables;
596 }
597 #endif
598
599 if (blend->base.independent_blend_enable) {
600 for (int i = 0; i < V3D_MAX_DRAW_BUFFERS; i++)
601 emit_rt_blend(v3d, job, &blend->base, i);
602 } else {
603 emit_rt_blend(v3d, job, &blend->base, 0);
604 }
605 }
606 }
607
608 if (v3d->dirty & VC5_DIRTY_BLEND) {
609 struct pipe_blend_state *blend = &v3d->blend->base;
610
611 cl_emit(&job->bcl, COLOR_WRITE_MASKS, mask) {
612 for (int i = 0; i < 4; i++) {
613 int rt = blend->independent_blend_enable ? i : 0;
614 int rt_mask = blend->rt[rt].colormask;
615
616 mask.mask |= translate_colormask(v3d, rt_mask,
617 i) << (4 * i);
618 }
619 }
620 }
621
622 /* GFXH-1431: On V3D 3.x, writing BLEND_CONFIG resets the constant
623 * color.
624 */
625 if (v3d->dirty & VC5_DIRTY_BLEND_COLOR ||
626 (V3D_VERSION < 41 && (v3d->dirty & VC5_DIRTY_BLEND))) {
627 cl_emit(&job->bcl, BLEND_CONSTANT_COLOR, color) {
628 color.red_f16 = (v3d->swap_color_rb ?
629 v3d->blend_color.hf[2] :
630 v3d->blend_color.hf[0]);
631 color.green_f16 = v3d->blend_color.hf[1];
632 color.blue_f16 = (v3d->swap_color_rb ?
633 v3d->blend_color.hf[0] :
634 v3d->blend_color.hf[2]);
635 color.alpha_f16 = v3d->blend_color.hf[3];
636 }
637 }
638
639 if (v3d->dirty & (VC5_DIRTY_ZSA | VC5_DIRTY_STENCIL_REF)) {
640 struct pipe_stencil_state *front = &v3d->zsa->base.stencil[0];
641 struct pipe_stencil_state *back = &v3d->zsa->base.stencil[1];
642
643 if (front->enabled) {
644 cl_emit_with_prepacked(&job->bcl, STENCIL_CFG,
645 v3d->zsa->stencil_front, config) {
646 config.stencil_ref_value =
647 v3d->stencil_ref.ref_value[0];
648 }
649 }
650
651 if (back->enabled) {
652 cl_emit_with_prepacked(&job->bcl, STENCIL_CFG,
653 v3d->zsa->stencil_back, config) {
654 config.stencil_ref_value =
655 v3d->stencil_ref.ref_value[1];
656 }
657 }
658 }
659
660 #if V3D_VERSION < 40
661 /* Pre-4.x, we have texture state that depends on both the sampler and
662 * the view, so we merge them together at draw time.
663 */
664 if (v3d->dirty & VC5_DIRTY_FRAGTEX)
665 emit_textures(v3d, &v3d->tex[PIPE_SHADER_FRAGMENT]);
666
667 if (v3d->dirty & VC5_DIRTY_GEOMTEX)
668 emit_textures(v3d, &v3d->tex[PIPE_SHADER_GEOMETRY]);
669
670 if (v3d->dirty & VC5_DIRTY_VERTTEX)
671 emit_textures(v3d, &v3d->tex[PIPE_SHADER_VERTEX]);
672 #endif
673
674 if (v3d->dirty & VC5_DIRTY_FLAT_SHADE_FLAGS) {
675 if (!emit_varying_flags(job,
676 v3d->prog.fs->prog_data.fs->flat_shade_flags,
677 emit_flat_shade_flags)) {
678 cl_emit(&job->bcl, ZERO_ALL_FLAT_SHADE_FLAGS, flags);
679 }
680 }
681
682 #if V3D_VERSION >= 40
683 if (v3d->dirty & VC5_DIRTY_NOPERSPECTIVE_FLAGS) {
684 if (!emit_varying_flags(job,
685 v3d->prog.fs->prog_data.fs->noperspective_flags,
686 emit_noperspective_flags)) {
687 cl_emit(&job->bcl, ZERO_ALL_NON_PERSPECTIVE_FLAGS, flags);
688 }
689 }
690
691 if (v3d->dirty & VC5_DIRTY_CENTROID_FLAGS) {
692 if (!emit_varying_flags(job,
693 v3d->prog.fs->prog_data.fs->centroid_flags,
694 emit_centroid_flags)) {
695 cl_emit(&job->bcl, ZERO_ALL_CENTROID_FLAGS, flags);
696 }
697 }
698 #endif
699
700 /* Set up the transform feedback data specs (which VPM entries to
701 * output to which buffers).
702 */
703 if (v3d->dirty & (VC5_DIRTY_STREAMOUT |
704 VC5_DIRTY_RASTERIZER |
705 VC5_DIRTY_PRIM_MODE)) {
706 struct v3d_streamout_stateobj *so = &v3d->streamout;
707 if (so->num_targets) {
708 bool psiz_per_vertex = (v3d->prim_mode == PIPE_PRIM_POINTS &&
709 v3d->rasterizer->base.point_size_per_vertex);
710 struct v3d_uncompiled_shader *tf_shader =
711 get_tf_shader(v3d);
712 uint16_t *tf_specs = (psiz_per_vertex ?
713 tf_shader->tf_specs_psiz :
714 tf_shader->tf_specs);
715
716 #if V3D_VERSION >= 40
717 bool tf_enabled = v3d_transform_feedback_enabled(v3d);
718 job->tf_enabled |= tf_enabled;
719
720 cl_emit(&job->bcl, TRANSFORM_FEEDBACK_SPECS, tfe) {
721 tfe.number_of_16_bit_output_data_specs_following =
722 tf_shader->num_tf_specs;
723 tfe.enable = tf_enabled;
724 };
725 #else /* V3D_VERSION < 40 */
726 cl_emit(&job->bcl, TRANSFORM_FEEDBACK_ENABLE, tfe) {
727 tfe.number_of_32_bit_output_buffer_address_following =
728 so->num_targets;
729 tfe.number_of_16_bit_output_data_specs_following =
730 tf_shader->num_tf_specs;
731 };
732 #endif /* V3D_VERSION < 40 */
733 for (int i = 0; i < tf_shader->num_tf_specs; i++) {
734 cl_emit_prepacked(&job->bcl, &tf_specs[i]);
735 }
736 } else {
737 #if V3D_VERSION >= 40
738 cl_emit(&job->bcl, TRANSFORM_FEEDBACK_SPECS, tfe) {
739 tfe.enable = false;
740 };
741 #endif /* V3D_VERSION >= 40 */
742 }
743 }
744
745 /* Set up the trasnform feedback buffers. */
746 if (v3d->dirty & VC5_DIRTY_STREAMOUT) {
747 struct v3d_uncompiled_shader *tf_shader = get_tf_shader(v3d);
748 struct v3d_streamout_stateobj *so = &v3d->streamout;
749 for (int i = 0; i < so->num_targets; i++) {
750 const struct pipe_stream_output_target *target =
751 so->targets[i];
752 struct v3d_resource *rsc = target ?
753 v3d_resource(target->buffer) : NULL;
754 struct pipe_shader_state *ss = &tf_shader->base;
755 struct pipe_stream_output_info *info = &ss->stream_output;
756 uint32_t offset = (v3d->streamout.offsets[i] *
757 info->stride[i] * 4);
758
759 #if V3D_VERSION >= 40
760 if (!target)
761 continue;
762
763 cl_emit(&job->bcl, TRANSFORM_FEEDBACK_BUFFER, output) {
764 output.buffer_address =
765 cl_address(rsc->bo,
766 target->buffer_offset +
767 offset);
768 output.buffer_size_in_32_bit_words =
769 (target->buffer_size - offset) >> 2;
770 output.buffer_number = i;
771 }
772 #else /* V3D_VERSION < 40 */
773 cl_emit(&job->bcl, TRANSFORM_FEEDBACK_OUTPUT_ADDRESS, output) {
774 if (target) {
775 output.address =
776 cl_address(rsc->bo,
777 target->buffer_offset +
778 offset);
779 }
780 };
781 #endif /* V3D_VERSION < 40 */
782 if (target) {
783 v3d_job_add_tf_write_resource(v3d->job,
784 target->buffer);
785 }
786 /* XXX: buffer_size? */
787 }
788 }
789
790 if (v3d->dirty & VC5_DIRTY_OQ) {
791 cl_emit(&job->bcl, OCCLUSION_QUERY_COUNTER, counter) {
792 if (v3d->active_queries && v3d->current_oq) {
793 counter.address = cl_address(v3d->current_oq, 0);
794 }
795 }
796 }
797
798 #if V3D_VERSION >= 40
799 if (v3d->dirty & VC5_DIRTY_SAMPLE_STATE) {
800 cl_emit(&job->bcl, SAMPLE_STATE, state) {
801 /* Note: SampleCoverage was handled at the
802 * frontend level by converting to sample_mask.
803 */
804 state.coverage = 1.0;
805 state.mask = job->msaa ? v3d->sample_mask : 0xf;
806 }
807 }
808 #endif
809 }