2 * Copyright 2010 Red Hat Inc.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
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
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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 * Authors: Dave Airlie
28 #include "util/u_inlines.h"
29 #include "util/u_memory.h"
30 #include "util/u_upload_mgr.h"
31 #include "util/u_math.h"
33 #include "r300_screen_buffer.h"
35 void r300_upload_index_buffer(struct r300_context *r300,
36 struct pipe_resource **index_buffer,
37 unsigned index_size, unsigned *start,
38 unsigned count, uint8_t *ptr)
40 unsigned index_offset;
45 u_upload_data(r300->vbuf_mgr->uploader,
46 0, count * index_size,
47 ptr + (*start * index_size),
49 index_buffer, &flushed);
51 *start = index_offset / index_size;
54 static void r300_buffer_destroy(struct pipe_screen *screen,
55 struct pipe_resource *buf)
57 struct r300_screen *r300screen = r300_screen(screen);
58 struct r300_resource *rbuf = r300_resource(buf);
60 if (rbuf->constant_buffer)
61 FREE(rbuf->constant_buffer);
64 pb_reference(&rbuf->buf, NULL);
66 util_slab_free(&r300screen->pool_buffers, rbuf);
69 static struct pipe_transfer*
70 r300_buffer_get_transfer(struct pipe_context *context,
71 struct pipe_resource *resource,
74 const struct pipe_box *box)
76 struct r300_context *r300 = r300_context(context);
77 struct pipe_transfer *transfer =
78 util_slab_alloc(&r300->pool_transfers);
80 transfer->resource = resource;
81 transfer->level = level;
82 transfer->usage = usage;
85 transfer->layer_stride = 0;
86 transfer->data = NULL;
88 /* Note strides are zero, this is ok for buffers, but not for
89 * textures 2d & higher at least.
94 static void r300_buffer_transfer_destroy(struct pipe_context *pipe,
95 struct pipe_transfer *transfer)
97 struct r300_context *r300 = r300_context(pipe);
98 util_slab_free(&r300->pool_transfers, transfer);
102 r300_buffer_transfer_map( struct pipe_context *pipe,
103 struct pipe_transfer *transfer )
105 struct r300_context *r300 = r300_context(pipe);
106 struct r300_screen *r300screen = r300_screen(pipe->screen);
107 struct radeon_winsys *rws = r300screen->rws;
108 struct r300_resource *rbuf = r300_resource(transfer->resource);
111 if (rbuf->b.user_ptr)
112 return (uint8_t *) rbuf->b.user_ptr + transfer->box.x;
113 if (rbuf->constant_buffer)
114 return (uint8_t *) rbuf->constant_buffer + transfer->box.x;
116 map = rws->buffer_map(rbuf->buf, r300->cs, transfer->usage);
121 return map + transfer->box.x;
124 static void r300_buffer_transfer_unmap( struct pipe_context *pipe,
125 struct pipe_transfer *transfer )
127 struct r300_screen *r300screen = r300_screen(pipe->screen);
128 struct radeon_winsys *rws = r300screen->rws;
129 struct r300_resource *rbuf = r300_resource(transfer->resource);
132 rws->buffer_unmap(rbuf->buf);
136 static void r300_buffer_transfer_inline_write(struct pipe_context *pipe,
137 struct pipe_resource *resource,
140 const struct pipe_box *box,
143 unsigned layer_stride)
145 struct r300_context *r300 = r300_context(pipe);
146 struct radeon_winsys *rws = r300->screen->rws;
147 struct r300_resource *rbuf = r300_resource(resource);
150 if (rbuf->constant_buffer) {
151 memcpy(rbuf->constant_buffer + box->x, data, box->width);
154 assert(rbuf->b.user_ptr == NULL);
156 map = rws->buffer_map(rbuf->buf, r300->cs,
157 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | usage);
159 memcpy(map + box->x, data, box->width);
161 rws->buffer_unmap(rbuf->buf);
164 static const struct u_resource_vtbl r300_buffer_vtbl =
166 NULL, /* get_handle */
167 r300_buffer_destroy, /* resource_destroy */
168 r300_buffer_get_transfer, /* get_transfer */
169 r300_buffer_transfer_destroy, /* transfer_destroy */
170 r300_buffer_transfer_map, /* transfer_map */
171 NULL, /* transfer_flush_region */
172 r300_buffer_transfer_unmap, /* transfer_unmap */
173 r300_buffer_transfer_inline_write /* transfer_inline_write */
176 struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
177 const struct pipe_resource *templ)
179 struct r300_screen *r300screen = r300_screen(screen);
180 struct r300_resource *rbuf;
181 unsigned alignment = 16;
183 rbuf = util_slab_alloc(&r300screen->pool_buffers);
185 rbuf->b.b.b = *templ;
186 rbuf->b.b.vtbl = &r300_buffer_vtbl;
187 pipe_reference_init(&rbuf->b.b.b.reference, 1);
188 rbuf->b.b.b.screen = screen;
189 rbuf->b.user_ptr = NULL;
190 rbuf->domain = RADEON_DOMAIN_GTT;
192 rbuf->buf_size = templ->width0;
193 rbuf->constant_buffer = NULL;
195 /* Alloc constant buffers in RAM. */
196 if (templ->bind & PIPE_BIND_CONSTANT_BUFFER) {
197 rbuf->constant_buffer = MALLOC(templ->width0);
202 r300screen->rws->buffer_create(r300screen->rws,
203 rbuf->b.b.b.width0, alignment,
204 rbuf->b.b.b.bind, rbuf->b.b.b.usage,
207 util_slab_free(&r300screen->pool_buffers, rbuf);
212 r300screen->rws->buffer_get_cs_handle(rbuf->buf);
217 struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen,
218 void *ptr, unsigned size,
221 struct r300_screen *r300screen = r300_screen(screen);
222 struct r300_resource *rbuf;
224 rbuf = util_slab_alloc(&r300screen->pool_buffers);
226 pipe_reference_init(&rbuf->b.b.b.reference, 1);
227 rbuf->b.b.b.screen = screen;
228 rbuf->b.b.b.target = PIPE_BUFFER;
229 rbuf->b.b.b.format = PIPE_FORMAT_R8_UNORM;
230 rbuf->b.b.b.usage = PIPE_USAGE_IMMUTABLE;
231 rbuf->b.b.b.bind = bind;
232 rbuf->b.b.b.width0 = ~0;
233 rbuf->b.b.b.height0 = 1;
234 rbuf->b.b.b.depth0 = 1;
235 rbuf->b.b.b.array_size = 1;
236 rbuf->b.b.b.flags = 0;
237 rbuf->b.b.vtbl = &r300_buffer_vtbl;
238 rbuf->b.user_ptr = ptr;
239 rbuf->domain = RADEON_DOMAIN_GTT;
241 rbuf->buf_size = size;
242 rbuf->constant_buffer = NULL;