summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/nvfx/nvfx_miptree.c
blob: aeb88e9ac96851cd5741ab8527a0a056d929322c (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
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "util/u_math.h"

#include "nvfx_context.h"
#include "nvfx_resource.h"
#include "nvfx_transfer.h"
#include "nv04_surface_2d.h"

/* Currently using separate implementations for buffers and textures,
 * even though gallium has a unified abstraction of these objects.
 * Eventually these should be combined, and mechanisms like transfers
 * be adapted to work for both buffer and texture uploads.
 */

static void
nvfx_miptree_layout(struct nvfx_miptree *mt)
{
	struct pipe_resource *pt = &mt->base.base;
	uint width = pt->width0;
	uint offset = 0;
	int nr_faces, l, f;
	uint wide_pitch = pt->bind & (PIPE_BIND_SAMPLER_VIEW |
				      PIPE_BIND_DEPTH_STENCIL |
				      PIPE_BIND_RENDER_TARGET |
				      PIPE_BIND_DISPLAY_TARGET |
				      PIPE_BIND_SCANOUT);

	if (pt->target == PIPE_TEXTURE_CUBE) {
		nr_faces = 6;
	} else
	if (pt->target == PIPE_TEXTURE_3D) {
		nr_faces = pt->depth0;
	} else {
		nr_faces = 1;
	}

	for (l = 0; l <= pt->last_level; l++) {
		if (wide_pitch && (pt->flags & NVFX_RESOURCE_FLAG_LINEAR))
			mt->level[l].pitch = align(util_format_get_stride(pt->format, pt->width0), 64);
		else
			mt->level[l].pitch = util_format_get_stride(pt->format, width);

		mt->level[l].image_offset =
			CALLOC(nr_faces, sizeof(unsigned));

		width  = u_minify(width, 1);
	}

	for (f = 0; f < nr_faces; f++) {
		for (l = 0; l < pt->last_level; l++) {
			mt->level[l].image_offset[f] = offset;

			if (!(pt->flags & NVFX_RESOURCE_FLAG_LINEAR) &&
			    u_minify(pt->width0, l + 1) > 1 && u_minify(pt->height0, l + 1) > 1)
				offset += align(mt->level[l].pitch * u_minify(pt->height0, l), 64);
			else
				offset += mt->level[l].pitch * u_minify(pt->height0, l);
		}

		mt->level[l].image_offset[f] = offset;
		offset += mt->level[l].pitch * u_minify(pt->height0, l);
	}

	mt->total_size = offset;
}

static boolean
nvfx_miptree_get_handle(struct pipe_screen *pscreen,
			struct pipe_resource *ptexture,
			struct winsys_handle *whandle)
{
	struct nvfx_miptree* mt = (struct nvfx_miptree*)ptexture;

	if (!mt || !mt->base.bo)
		return FALSE;

	return nouveau_screen_bo_get_handle(pscreen,
					    mt->base.bo,
					    mt->level[0].pitch,
					    whandle);
}


static void
nvfx_miptree_destroy(struct pipe_screen *screen, struct pipe_resource *pt)
{
	struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
	int l;

	nouveau_screen_bo_release(screen, mt->base.bo);

	for (l = 0; l <= pt->last_level; l++) {
		if (mt->level[l].image_offset)
			FREE(mt->level[l].image_offset);
	}

	FREE(mt);
}




struct u_resource_vtbl nvfx_miptree_vtbl = 
{
   nvfx_miptree_get_handle,	      /* get_handle */
   nvfx_miptree_destroy,	      /* resource_destroy */
   NULL,			      /* is_resource_referenced */
   nvfx_miptree_transfer_new,	      /* get_transfer */
   nvfx_miptree_transfer_del,     /* transfer_destroy */
   nvfx_miptree_transfer_map,	      /* transfer_map */
   u_default_transfer_flush_region,   /* transfer_flush_region */
   nvfx_miptree_transfer_unmap,	      /* transfer_unmap */
   u_default_transfer_inline_write    /* transfer_inline_write */
};



struct pipe_resource *
nvfx_miptree_create(struct pipe_screen *pscreen, const struct pipe_resource *pt)
{
	struct nvfx_miptree *mt;
	static int no_swizzle = -1;
	if(no_swizzle < 0)
		no_swizzle = debug_get_bool_option("NOUVEAU_NO_SWIZZLE", FALSE);

	mt = CALLOC_STRUCT(nvfx_miptree);
	if (!mt)
		return NULL;

	mt->base.base = *pt;
	mt->base.vtbl = &nvfx_miptree_vtbl;
	pipe_reference_init(&mt->base.base.reference, 1);
	mt->base.base.screen = pscreen;

	/* Swizzled textures must be POT */
	if (pt->width0 & (pt->width0 - 1) ||
	    pt->height0 & (pt->height0 - 1))
		mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
	else
	if (pt->bind & (PIPE_BIND_SCANOUT |
			PIPE_BIND_DISPLAY_TARGET |
			PIPE_BIND_DEPTH_STENCIL))
		mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
	else
	if (pt->usage == PIPE_USAGE_DYNAMIC)
		mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
	else {
		switch (pt->format) {
		case PIPE_FORMAT_B5G6R5_UNORM:
		case PIPE_FORMAT_L8A8_UNORM:
		case PIPE_FORMAT_A8_UNORM:
		case PIPE_FORMAT_L8_UNORM:
		case PIPE_FORMAT_I8_UNORM:
			/* TODO: we can actually swizzle these formats on nv40, we
				are just preserving the pre-unification behavior.
				The whole 2D code is going to be rewritten anyway. */
			if(nvfx_screen(pscreen)->is_nv4x) {
				mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
				break;
			}
		/* TODO: Figure out which formats can be swizzled */
		case PIPE_FORMAT_B8G8R8A8_UNORM:
		case PIPE_FORMAT_B8G8R8X8_UNORM:
		case PIPE_FORMAT_R16_SNORM:
		{
			if (no_swizzle)
				mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
			break;
		}
		default:
			mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;
		}
	}

	/* apparently we can't render to swizzled surfaces smaller than 64 bytes, so make them linear.
	 * If the user did not ask for a render target, they can still render to it, but it will cost them an extra copy.
	 * This also happens for small mipmaps of large textures. */
	if (pt->bind & PIPE_BIND_RENDER_TARGET &&
	    util_format_get_stride(pt->format, pt->width0) < 64)
		mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;

	nvfx_miptree_layout(mt);

	mt->base.bo = nouveau_screen_bo_new(pscreen, 256,
            pt->usage, pt->bind, mt->total_size);
	if (!mt->base.bo) {
		FREE(mt);
		return NULL;
	}
	return &mt->base.base;
}




struct pipe_resource *
nvfx_miptree_from_handle(struct pipe_screen *pscreen,
			 const struct pipe_resource *template,
			 struct winsys_handle *whandle)
{
	struct nvfx_miptree *mt;
	unsigned stride;

	/* Only supports 2D, non-mipmapped textures for the moment */
	if (template->target != PIPE_TEXTURE_2D ||
	    template->last_level != 0 ||
	    template->depth0 != 1)
		return NULL;

	mt = CALLOC_STRUCT(nvfx_miptree);
	if (!mt)
		return NULL;

	mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
	if (mt->base.bo == NULL) {
		FREE(mt);
		return NULL;
	}

	mt->base.base = *template;
	mt->base.vtbl = &nvfx_miptree_vtbl;
	pipe_reference_init(&mt->base.base.reference, 1);
	mt->base.base.screen = pscreen;
	mt->level[0].pitch = stride;
	mt->level[0].image_offset = CALLOC(1, sizeof(unsigned));

	/* Assume whoever created this buffer expects it to be linear for now */
	mt->base.base.flags |= NVFX_RESOURCE_FLAG_LINEAR;

	/* XXX: Need to adjust bo refcount??
	 */
	/* nouveau_bo_ref(bo, &mt->base.bo); */
	return &mt->base.base;
}





/* Surface helpers, not strictly required to implement the resource vtbl:
 */
struct pipe_surface *
nvfx_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_resource *pt,
			 unsigned face, unsigned level, unsigned zslice,
			 unsigned flags)
{
	struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
	struct nv04_surface *ns;

	ns = CALLOC_STRUCT(nv04_surface);
	if (!ns)
		return NULL;
	pipe_resource_reference(&ns->base.texture, pt);
	ns->base.format = pt->format;
	ns->base.width = u_minify(pt->width0, level);
	ns->base.height = u_minify(pt->height0, level);
	ns->base.usage = flags;
	pipe_reference_init(&ns->base.reference, 1);
	ns->base.face = face;
	ns->base.level = level;
	ns->base.zslice = zslice;
	ns->pitch = mt->level[level].pitch;

	if (pt->target == PIPE_TEXTURE_CUBE) {
		ns->base.offset = mt->level[level].image_offset[face];
	} else
	if (pt->target == PIPE_TEXTURE_3D) {
		ns->base.offset = mt->level[level].image_offset[zslice];
	} else {
		ns->base.offset = mt->level[level].image_offset[0];
	}

	/* create a linear temporary that we can render into if
	 * necessary.
	 *
	 * Note that ns->pitch is always a multiple of 64 for linear
	 * surfaces and swizzled surfaces are POT, so ns->pitch & 63
	 * is equivalent to (ns->pitch < 64 && swizzled)
	 */

	if ((ns->pitch & 63) && 
	    (ns->base.usage & PIPE_BIND_RENDER_TARGET))
	{
		struct nv04_surface_2d* eng2d  =
			((struct nvfx_screen*)pscreen)->eng2d;

		ns = nv04_surface_wrap_for_render(pscreen, eng2d, ns);
	}

	return &ns->base;
}

void
nvfx_miptree_surface_del(struct pipe_surface *ps)
{
	struct nv04_surface* ns = (struct nv04_surface*)ps;
	if(ns->backing)
	{
		struct nvfx_screen* screen = (struct nvfx_screen*)ps->texture->screen;
		if(ns->backing->base.usage & PIPE_BIND_BLIT_DESTINATION)
			screen->eng2d->copy(screen->eng2d, &ns->backing->base, 0, 0, ps, 0, 0, ns->base.width, ns->base.height);
		nvfx_miptree_surface_del(&ns->backing->base);
	}

	pipe_resource_reference(&ps->texture, NULL);
	FREE(ps);
}