summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/nvfx/nvfx_surface.c
blob: 70adebc1be5d4dd826f1d49dde0c1bbaddccf434 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510

/**************************************************************************
 *
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **************************************************************************/

#include "pipe/p_context.h"
#include "pipe/p_format.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_pack_color.h"
#include "util/u_blitter.h"

#include "nouveau/nouveau_winsys.h"
#include "nouveau/nouveau_screen.h"
#include "nvfx_context.h"
#include "nvfx_screen.h"
#include "nvfx_resource.h"
#include "nv04_2d.h"

#include <nouveau/nouveau_bo.h>

static INLINE void
nvfx_region_set_format(struct nv04_region* rgn, enum pipe_format format)
{
	unsigned bits = util_format_get_blocksizebits(format);
	unsigned shift = 0;
	rgn->one_bits = 0;

	switch(bits)
	{
	case 8:
		rgn->bpps = 0;
		break;
	case 16:
		rgn->bpps = 1;
		if(format == PIPE_FORMAT_B5G5R5X1_UNORM)
			rgn->one_bits = 1;
		break;
	case 32:
		rgn->bpps = 2;
		if(format == PIPE_FORMAT_R8G8B8X8_UNORM || format == PIPE_FORMAT_B8G8R8X8_UNORM)
			rgn->one_bits = 8;
		break;
	case 64:
		rgn->bpps = 2;
		shift = 1;
		break;
	case 128:
		rgn->bpps = 2;
		shift = 2;
		break;
	}

	if(shift) {
		rgn->x = util_format_get_nblocksx(format, rgn->x) << shift;
		rgn->y = util_format_get_nblocksy(format, rgn->y);
		rgn->w <<= shift;
	}
}

static INLINE void
nvfx_region_init_for_surface(struct nv04_region* rgn, struct nvfx_surface* surf, unsigned x, unsigned y, bool for_write)
{
	rgn->x = x;
	rgn->y = y;
	rgn->z = 0;

	if(surf->temp)
	{
		rgn->bo = surf->temp->base.bo;
		rgn->offset = 0;
		rgn->pitch = surf->temp->linear_pitch;

		if(for_write)
			util_dirty_surface_set_dirty(nvfx_surface_get_dirty_surfaces(&surf->base.base), &surf->base);
	} else {
		rgn->bo = ((struct nvfx_resource*)surf->base.base.texture)->bo;
		rgn->offset = surf->base.base.offset;

		if(surf->base.base.texture->flags & NVFX_RESOURCE_FLAG_LINEAR)
			rgn->pitch = surf->pitch;
	        else
	        {
		        rgn->pitch = 0;
		        rgn->z = surf->base.base.zslice;
		        rgn->w = surf->base.base.width;
		        rgn->h = surf->base.base.height;
		        rgn->d = u_minify(surf->base.base.texture->depth0, surf->base.base.level);
	        }
	}

	nvfx_region_set_format(rgn, surf->base.base.format);
	if(!rgn->pitch)
		nv04_region_try_to_linearize(rgn);
}

static INLINE void
nvfx_region_init_for_subresource(struct nv04_region* rgn, struct pipe_resource* pt, struct pipe_subresource sub, unsigned x, unsigned y, unsigned z, bool for_write)
{
	if(pt->target != PIPE_BUFFER)
	{
		struct nvfx_surface* ns = (struct nvfx_surface*)util_surfaces_peek(&((struct nvfx_miptree*)pt)->surfaces, pt, sub.face, sub.level, z);
		if(ns && util_dirty_surface_is_dirty(&ns->base))
		{
			nvfx_region_init_for_surface(rgn, ns, x, y, for_write);
			return;
		}
	}

	rgn->bo = ((struct nvfx_resource*)pt)->bo;
	rgn->offset = nvfx_subresource_offset(pt, sub.face, sub.level, z);
	rgn->x = x;
	rgn->y = y;

	if(pt->flags & NVFX_RESOURCE_FLAG_LINEAR)
	{
		rgn->pitch = nvfx_subresource_pitch(pt, sub.level);
		rgn->z = 0;
	}
	else
	{
		rgn->pitch = 0;
		rgn->z = z;
		rgn->w = u_minify(pt->width0, sub.level);
		rgn->h = u_minify(pt->height0, sub.level);
		rgn->d = u_minify(pt->depth0, sub.level);
	}

	nvfx_region_set_format(rgn, pt->format);
	if(!rgn->pitch)
		nv04_region_try_to_linearize(rgn);
}

// don't save index buffer because blitter doesn't setit
static struct blitter_context*
nvfx_get_blitter(struct pipe_context* pipe, int copy)
{
	struct nvfx_context* nvfx = nvfx_context(pipe);
	struct blitter_context** pblitter;
	struct blitter_context* blitter;

	assert(nvfx->blitters_in_use < Elements(nvfx->blitter));

	if(nvfx->query && !nvfx->blitters_in_use)
	{
		struct nouveau_channel* chan = nvfx->screen->base.channel;
		WAIT_RING(chan, 2);
		OUT_RING(chan, RING_3D(NV30_3D_QUERY_ENABLE, 1));
		OUT_RING(chan, 0);
	}

	pblitter = &nvfx->blitter[nvfx->blitters_in_use++];
	if(!*pblitter)
		*pblitter = util_blitter_create(pipe);
	blitter = *pblitter;

	util_blitter_save_blend(blitter, nvfx->blend);
	util_blitter_save_depth_stencil_alpha(blitter, nvfx->zsa);
	util_blitter_save_stencil_ref(blitter, &nvfx->stencil_ref);
	util_blitter_save_rasterizer(blitter, nvfx->rasterizer);
	util_blitter_save_fragment_shader(blitter, nvfx->fragprog);
	util_blitter_save_vertex_shader(blitter, nvfx->vertprog);
	util_blitter_save_viewport(blitter, &nvfx->viewport);
	util_blitter_save_framebuffer(blitter, &nvfx->framebuffer);
	util_blitter_save_clip(blitter, &nvfx->clip);
	util_blitter_save_vertex_elements(blitter, nvfx->vtxelt);
	util_blitter_save_vertex_buffers(blitter, nvfx->vtxbuf_nr, nvfx->vtxbuf);

	if(copy)
	{
		util_blitter_save_fragment_sampler_states(blitter, nvfx->nr_samplers, (void**)nvfx->tex_sampler);
		util_blitter_save_fragment_sampler_views(blitter, nvfx->nr_textures, nvfx->fragment_sampler_views);
	}

	return blitter;
}

static inline void
nvfx_put_blitter(struct pipe_context* pipe, struct blitter_context* blitter)
{
	struct nvfx_context* nvfx = nvfx_context(pipe);
	--nvfx->blitters_in_use;
	assert(nvfx->blitters_in_use >= 0);

	if(nvfx->query && !nvfx->blitters_in_use)
	{
		struct nouveau_channel* chan = nvfx->screen->base.channel;
		WAIT_RING(chan, 2);
		OUT_RING(chan, RING_3D(NV30_3D_QUERY_ENABLE, 1));
		OUT_RING(chan, 1);
	}
}

static unsigned
nvfx_region_clone(struct nv04_2d_context* ctx, struct nv04_region* rgn, unsigned w, unsigned h, boolean for_read)
{
	unsigned begin = nv04_region_begin(rgn, w, h);
	unsigned end = nv04_region_end(rgn, w, h);
	unsigned size = end - begin;
	struct nouveau_bo* bo = 0;
	nouveau_bo_new(rgn->bo->device, NOUVEAU_BO_MAP | NOUVEAU_BO_GART, 256, size, &bo);

	if(for_read || (size > ((w * h) << rgn->bpps)))
		nv04_memcpy(ctx, bo, 0, rgn->bo, rgn->offset + begin, size);

	rgn->bo = bo;
	rgn->offset = -begin;
	return begin;
}

static void
nvfx_resource_copy_region(struct pipe_context *pipe,
		  struct pipe_resource *dstr, struct pipe_subresource subdst,
		  unsigned dstx, unsigned dsty, unsigned dstz,
		  struct pipe_resource *srcr, struct pipe_subresource subsrc,
		  unsigned srcx, unsigned srcy, unsigned srcz,
		  unsigned w, unsigned h)
{
	static int copy_threshold = -1;
	struct nv04_2d_context *ctx = nvfx_screen(pipe->screen)->eng2d;
	struct nv04_region dst, src;
	int dst_to_gpu;
	int src_on_gpu;
	boolean small;
	int ret;

	if(!w || !h)
		return;

	if(copy_threshold < 0)
		copy_threshold = debug_get_num_option("NOUVEAU_COPY_THRESHOLD", 4);

	dst_to_gpu = dstr->usage != PIPE_USAGE_DYNAMIC && dstr->usage != PIPE_USAGE_STAGING;
	src_on_gpu = nvfx_resource_on_gpu(srcr);

	nvfx_region_init_for_subresource(&dst, dstr, subdst, dstx, dsty, dstz, TRUE);
	nvfx_region_init_for_subresource(&src, srcr, subsrc, srcx, srcy, srcz, FALSE);
	w = util_format_get_stride(dstr->format, w) >> dst.bpps;
	h = util_format_get_nblocksy(dstr->format, h);

	small = (w * h <= copy_threshold);
	if((!dst_to_gpu || !src_on_gpu) && small)
		ret = -1; /* use the CPU */
	else
		ret = nv04_region_copy_2d(ctx, &dst, &src, w, h, dst_to_gpu, src_on_gpu);
	if(!ret)
	{}
	else if(ret > 0
			&& dstr->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)
			&& srcr->bind & PIPE_BIND_SAMPLER_VIEW)
	{
		/* this currently works because we hack the bind flags on resource creation to be
		 * the maximum set that the resource type actually supports
		 *
		 * TODO: perhaps support reinterpreting the formats
		 */
		struct blitter_context* blitter = nvfx_get_blitter(pipe, 1);
		util_blitter_copy_region(blitter, dstr, subdst, dstx, dsty, dstz, srcr, subsrc, srcx, srcy, srcz, w, h, TRUE);
		nvfx_put_blitter(pipe, blitter);
	}
	else
	{
		struct nv04_region dstt = dst;
		struct nv04_region srct = src;
		unsigned dstbegin = 0;

		if(!small)
		{
			if(src_on_gpu)
				nvfx_region_clone(ctx, &srct, w, h, TRUE);

			if(dst_to_gpu)
				dstbegin = nvfx_region_clone(ctx, &dstt, w, h, FALSE);
		}

		nv04_region_copy_cpu(&dstt, &srct, w, h);

		if(srct.bo != src.bo)
			nouveau_screen_bo_release(pipe->screen, srct.bo);

		if(dstt.bo != dst.bo)
		{
			nv04_memcpy(ctx, dst.bo, dst.offset + dstbegin, dstt.bo, 0, dstt.bo->size);
			nouveau_screen_bo_release(pipe->screen, dstt.bo);
		}
	}
}

static int
nvfx_surface_fill(struct pipe_context* pipe, struct pipe_surface *dsts,
		  unsigned dx, unsigned dy, unsigned w, unsigned h, unsigned value)
{
	struct nv04_2d_context *ctx = nvfx_screen(pipe->screen)->eng2d;
	struct nv04_region dst;
	int ret;
	/* Always try to use the GPU right now, if possible
	 * If the user wanted the surface data on the CPU, he would have cleared with memset (hopefully) */

	// we don't care about interior pixel order since we set all them to the same value
	nvfx_region_init_for_surface(&dst, (struct nvfx_surface*)dsts, dx, dy, TRUE);

	w = util_format_get_stride(dsts->format, w) >> dst.bpps;
	h = util_format_get_nblocksy(dsts->format, h);

	ret = nv04_region_fill_2d(ctx, &dst, w, h, value);
	if(ret > 0 && dsts->texture->bind & PIPE_BIND_RENDER_TARGET)
		return 1;
	else if(ret)
	{
		struct nv04_region dstt = dst;
		unsigned dstbegin = 0;

		if(nvfx_resource_on_gpu(dsts->texture))
			dstbegin = nvfx_region_clone(ctx, &dstt, w, h, FALSE);

		nv04_region_fill_cpu(&dstt, w, h, value);

		if(dstt.bo != dst.bo)
		{
			nv04_memcpy(ctx, dst.bo, dst.offset + dstbegin, dstt.bo, 0, dstt.bo->size);
			nouveau_screen_bo_release(pipe->screen, dstt.bo);
		}
	}

	return 0;
}


void
nvfx_screen_surface_takedown(struct pipe_screen *pscreen)
{
	nv04_2d_context_takedown(nvfx_screen(pscreen)->eng2d);
	nvfx_screen(pscreen)->eng2d = 0;
}

int
nvfx_screen_surface_init(struct pipe_screen *pscreen)
{
	struct nv04_2d_context* ctx = nv04_2d_context_init(nouveau_screen(pscreen)->channel);
	if(!ctx)
		return -1;
	nvfx_screen(pscreen)->eng2d = ctx;
	return 0;
}

static void
nvfx_surface_copy_temp(struct pipe_context* pipe, struct pipe_surface* surf, int to_temp)
{
	struct nvfx_surface* ns = (struct nvfx_surface*)surf;
	struct pipe_subresource tempsr, surfsr;
	struct nvfx_context* nvfx = nvfx_context(pipe);
	struct nvfx_miptree* temp;
	unsigned use_vertex_buffers;
	boolean use_index_buffer;
	unsigned base_vertex;

	/* temporarily detach the temp, so it isn't used in place of the actual resource */
	temp = ns->temp;
	ns->temp = 0;

	// TODO: we really should do this validation before setting these variable in draw calls
	use_vertex_buffers = nvfx->use_vertex_buffers;
	use_index_buffer = nvfx->use_index_buffer;
	base_vertex = nvfx->base_vertex;

	tempsr.face = 0;
	tempsr.level = 0;
	surfsr.face = surf->face;
	surfsr.level = surf->level;

	if(to_temp)
		nvfx_resource_copy_region(pipe, &temp->base.base, tempsr, 0, 0, 0, surf->texture, surfsr, 0, 0, surf->zslice, surf->width, surf->height);
	else
		nvfx_resource_copy_region(pipe, surf->texture, surfsr, 0, 0, surf->zslice, &temp->base.base, tempsr, 0, 0, 0, surf->width, surf->height);

	/* If this triggers, it probably means we attempted to use the blitter
	 * but failed due to non-renderability of the target.
	 * Obviously, this would lead to infinite recursion if supported. */
	assert(!ns->temp);

	ns->temp = temp;

	nvfx->use_vertex_buffers = use_vertex_buffers;
	nvfx->use_index_buffer = use_index_buffer;
        nvfx->base_vertex = base_vertex;

	nvfx->dirty |= NVFX_NEW_ARRAYS;
	nvfx->draw_dirty |= NVFX_NEW_ARRAYS;
}

void
nvfx_surface_create_temp(struct pipe_context* pipe, struct pipe_surface* surf)
{
	struct nvfx_surface* ns = (struct nvfx_surface*)surf;
	struct pipe_resource template;
	memset(&template, 0, sizeof(struct pipe_resource));
	template.target = PIPE_TEXTURE_2D;
	template.format = surf->format;
	template.width0 = surf->width;
	template.height0 = surf->height;
	template.depth0 = 1;
	template.nr_samples = surf->texture->nr_samples;
	template.flags = NVFX_RESOURCE_FLAG_LINEAR;

	assert(!ns->temp && !util_dirty_surface_is_dirty(&ns->base));

	ns->temp = (struct nvfx_miptree*)nvfx_miptree_create(pipe->screen, &template);
	nvfx_surface_copy_temp(pipe, surf, 1);
}

void
nvfx_surface_flush(struct pipe_context* pipe, struct pipe_surface* surf)
{
	struct nvfx_context* nvfx = (struct nvfx_context*)pipe;
	struct nvfx_surface* ns = (struct nvfx_surface*)surf;
	boolean bound = FALSE;

	nvfx_surface_copy_temp(pipe, surf, 0);

	util_dirty_surface_set_clean(nvfx_surface_get_dirty_surfaces(surf), &ns->base);

	if(nvfx->framebuffer.zsbuf == surf)
		bound = TRUE;
	else
	{
		for(unsigned i = 0; i < nvfx->framebuffer.nr_cbufs; ++i)
		{
			if(nvfx->framebuffer.cbufs[i] == surf)
			{
				bound = TRUE;
				break;
			}
		}
	}

	if(!bound)
		pipe_resource_reference((struct pipe_resource**)&ns->temp, 0);
}

static void
nvfx_clear_render_target(struct pipe_context *pipe,
			 struct pipe_surface *dst,
			 const float *rgba,
			 unsigned dstx, unsigned dsty,
			 unsigned width, unsigned height)
{
	union util_color uc;
	util_pack_color(rgba, dst->format, &uc);

	if(util_format_get_blocksizebits(dst->format) > 32
		|| nvfx_surface_fill(pipe, dst, dstx, dsty, width, height, uc.ui))
	{
		// TODO: probably should use hardware clear here instead if possible
		struct blitter_context* blitter = nvfx_get_blitter(pipe, 0);
		util_blitter_clear_render_target(blitter, dst, rgba, dstx, dsty, width, height);
		nvfx_put_blitter(pipe, blitter);
	}
}

static void
nvfx_clear_depth_stencil(struct pipe_context *pipe,
			 struct pipe_surface *dst,
			 unsigned clear_flags,
			 double depth,
			 unsigned stencil,
			 unsigned dstx, unsigned dsty,
			 unsigned width, unsigned height)
{
	if(util_format_get_blocksizebits(dst->format) > 32
		|| nvfx_surface_fill(pipe, dst, dstx, dsty, width, height, util_pack_z_stencil(dst->format, depth, stencil)))
	{
		// TODO: probably should use hardware clear here instead if possible
		struct blitter_context* blitter = nvfx_get_blitter(pipe, 0);
		util_blitter_clear_depth_stencil(blitter, dst, clear_flags, depth, stencil, dstx, dsty, width, height);
		nvfx_put_blitter(pipe, blitter);
	}
}


void
nvfx_init_surface_functions(struct nvfx_context *nvfx)
{
	nvfx->pipe.resource_copy_region = nvfx_resource_copy_region;
	nvfx->pipe.clear_render_target = nvfx_clear_render_target;
	nvfx->pipe.clear_depth_stencil = nvfx_clear_depth_stencil;
}