summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/r600/r600_buffer.c
blob: 9f545f14699e938032015ba89cf01ff3c0342ebd (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
/*
 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
 *
 * 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
 * on 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
 * THE AUTHOR(S) AND/OR THEIR 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.
 *
 * Authors:
 *      Jerome Glisse
 *      Corbin Simpson <MostAwesomeDude@gmail.com>
 */
#include <byteswap.h>

#include <pipe/p_screen.h>
#include <util/u_format.h>
#include <util/u_math.h>
#include <util/u_inlines.h>
#include <util/u_memory.h>
#include "util/u_upload_mgr.h"

#include "state_tracker/drm_driver.h"

#include <xf86drm.h>
#include "radeon_drm.h"

#include "r600.h"
#include "r600_pipe.h"

static void r600_buffer_destroy(struct pipe_screen *screen,
				struct pipe_resource *buf)
{
	struct r600_screen *rscreen = (struct r600_screen*)screen;
	struct r600_resource_buffer *rbuffer = r600_buffer(buf);

	if (rbuffer->r.bo) {
		r600_bo_reference((struct radeon*)screen->winsys, &rbuffer->r.bo, NULL);
	}
	rbuffer->r.bo = NULL;
	util_slab_free(&rscreen->pool_buffers, rbuffer);
}

static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
					       struct pipe_resource *resource,
					       unsigned level,
					       unsigned usage,
					       const struct pipe_box *box)
{
	struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
	struct pipe_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);

	transfer->resource = resource;
	transfer->level = level;
	transfer->usage = usage;
	transfer->box = *box;
	transfer->stride = 0;
	transfer->layer_stride = 0;
	transfer->data = NULL;

	/* Note strides are zero, this is ok for buffers, but not for
	 * textures 2d & higher at least.
	 */
	return transfer;
}

static void *r600_buffer_transfer_map(struct pipe_context *pipe,
				      struct pipe_transfer *transfer)
{
	struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
	int write = 0;
	uint8_t *data;

	if (rbuffer->r.b.user_ptr)
		return (uint8_t*)rbuffer->r.b.user_ptr + transfer->box.x;

	if (transfer->usage & PIPE_TRANSFER_WRITE) {
		write = 1;
	}
	data = r600_bo_map((struct radeon*)pipe->winsys, rbuffer->r.bo, transfer->usage, pipe);
	if (!data)
		return NULL;

	return (uint8_t*)data + transfer->box.x;
}

static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
					struct pipe_transfer *transfer)
{
	struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);

	if (rbuffer->r.b.user_ptr)
		return;

	if (rbuffer->r.bo)
		r600_bo_unmap((struct radeon*)pipe->winsys, rbuffer->r.bo);
}

static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
						struct pipe_transfer *transfer,
						const struct pipe_box *box)
{
}

static void r600_transfer_destroy(struct pipe_context *ctx,
				  struct pipe_transfer *transfer)
{
	struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
	util_slab_free(&rctx->pool_transfers, transfer);
}

static void r600_buffer_transfer_inline_write(struct pipe_context *pipe,
						struct pipe_resource *resource,
						unsigned level,
						unsigned usage,
						const struct pipe_box *box,
						const void *data,
						unsigned stride,
						unsigned layer_stride)
{
	struct radeon *ws = (struct radeon*)pipe->winsys;
	struct r600_resource_buffer *rbuffer = r600_buffer(resource);
	uint8_t *map = NULL;

	assert(rbuffer->r.b.user_ptr == NULL);

	map = r600_bo_map(ws, rbuffer->r.bo,
			  PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | usage,
			  pipe);

	memcpy(map + box->x, data, box->width);

	if (rbuffer->r.bo)
		r600_bo_unmap(ws, rbuffer->r.bo);
}

static const struct u_resource_vtbl r600_buffer_vtbl =
{
	u_default_resource_get_handle,		/* get_handle */
	r600_buffer_destroy,			/* resource_destroy */
	r600_get_transfer,			/* get_transfer */
	r600_transfer_destroy,			/* transfer_destroy */
	r600_buffer_transfer_map,		/* transfer_map */
	r600_buffer_transfer_flush_region,	/* transfer_flush_region */
	r600_buffer_transfer_unmap,		/* transfer_unmap */
	r600_buffer_transfer_inline_write	/* transfer_inline_write */
};

struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
					 const struct pipe_resource *templ)
{
	struct r600_screen *rscreen = (struct r600_screen*)screen;
	struct r600_resource_buffer *rbuffer;
	struct r600_bo *bo;
	/* XXX We probably want a different alignment for buffers and textures. */
	unsigned alignment = 4096;

	rbuffer = util_slab_alloc(&rscreen->pool_buffers);

	rbuffer->magic = R600_BUFFER_MAGIC;
	rbuffer->r.b.b.b = *templ;
	pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
	rbuffer->r.b.b.b.screen = screen;
	rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
	rbuffer->r.b.user_ptr = NULL;
	rbuffer->r.size = rbuffer->r.b.b.b.width0;
	rbuffer->r.bo_size = rbuffer->r.size;

	bo = r600_bo((struct radeon*)screen->winsys,
		     rbuffer->r.b.b.b.width0,
		     alignment, rbuffer->r.b.b.b.bind,
		     rbuffer->r.b.b.b.usage);

	if (bo == NULL) {
		FREE(rbuffer);
		return NULL;
	}
	rbuffer->r.bo = bo;
	return &rbuffer->r.b.b.b;
}

struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
					      void *ptr, unsigned bytes,
					      unsigned bind)
{
	struct r600_screen *rscreen = (struct r600_screen*)screen;
	struct r600_resource_buffer *rbuffer;

	rbuffer = util_slab_alloc(&rscreen->pool_buffers);

	rbuffer->magic = R600_BUFFER_MAGIC;
	pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
	rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
	rbuffer->r.b.b.b.screen = screen;
	rbuffer->r.b.b.b.target = PIPE_BUFFER;
	rbuffer->r.b.b.b.format = PIPE_FORMAT_R8_UNORM;
	rbuffer->r.b.b.b.usage = PIPE_USAGE_IMMUTABLE;
	rbuffer->r.b.b.b.bind = bind;
	rbuffer->r.b.b.b.width0 = bytes;
	rbuffer->r.b.b.b.height0 = 1;
	rbuffer->r.b.b.b.depth0 = 1;
	rbuffer->r.b.b.b.array_size = 1;
	rbuffer->r.b.b.b.flags = 0;
	rbuffer->r.b.user_ptr = ptr;
	rbuffer->r.bo = NULL;
	rbuffer->r.bo_size = 0;
	return &rbuffer->r.b.b.b;
}

struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
					      struct winsys_handle *whandle)
{
	struct radeon *rw = (struct radeon*)screen->winsys;
	struct r600_resource *rbuffer;
	struct r600_bo *bo = NULL;

	bo = r600_bo_handle(rw, whandle->handle, NULL);
	if (bo == NULL) {
		return NULL;
	}

	rbuffer = CALLOC_STRUCT(r600_resource);
	if (rbuffer == NULL) {
		r600_bo_reference(rw, &bo, NULL);
		return NULL;
	}

	pipe_reference_init(&rbuffer->b.b.b.reference, 1);
	rbuffer->b.b.b.target = PIPE_BUFFER;
	rbuffer->b.b.b.screen = screen;
	rbuffer->b.b.vtbl = &r600_buffer_vtbl;
	rbuffer->bo = bo;
	return &rbuffer->b.b.b;
}

void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw)
{
	struct r600_resource_buffer *rbuffer = r600_buffer(draw->index_buffer);
	boolean flushed;

	u_upload_data(rctx->vbuf_mgr->uploader, 0,
		      draw->info.count * draw->index_size,
		      rbuffer->r.b.user_ptr,
		      &draw->index_buffer_offset,
		      &draw->index_buffer, &flushed);
}

void r600_upload_const_buffer(struct r600_pipe_context *rctx, struct r600_resource_buffer **rbuffer,
			     uint32_t *const_offset)
{
	if ((*rbuffer)->r.b.user_ptr) {
		uint8_t *ptr = (*rbuffer)->r.b.user_ptr;
		unsigned size = (*rbuffer)->r.b.b.b.width0;
		boolean flushed;

		*rbuffer = NULL;

		if (R600_BIG_ENDIAN) {
			uint32_t *tmpPtr;
			unsigned i;

			if (!(tmpPtr = malloc(size))) {
				R600_ERR("Failed to allocate BE swap buffer.\n");
				return;
			}

			for (i = 0; i < size / 4; ++i) {
				tmpPtr[i] = bswap_32(((uint32_t *)ptr)[i]);
			}

			u_upload_data(rctx->vbuf_mgr->uploader, 0, size, tmpPtr, const_offset,
				      (struct pipe_resource**)rbuffer, &flushed);

			free(tmpPtr);
		} else {
			u_upload_data(rctx->vbuf_mgr->uploader, 0, size, ptr, const_offset,
				      (struct pipe_resource**)rbuffer, &flushed);
		}
	} else {
		*const_offset = 0;
	}
}