304 lines
9.4 KiB
C
304 lines
9.4 KiB
C
/**************************************************************************
|
|
*
|
|
* Copyright 2009 VMware, Inc.
|
|
* Copyright 2016 Axel Davy <axel.davy@ens.fr>
|
|
* 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 VMWARE 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.
|
|
*
|
|
**************************************************************************/
|
|
/* Adapted from u_upload_mgr.
|
|
* Makes suballocations from bigger allocations,
|
|
* while enabling fast mapping. */
|
|
|
|
#include "pipe/p_defines.h"
|
|
#include "util/u_inlines.h"
|
|
#include "pipe/p_context.h"
|
|
#include "util/u_memory.h"
|
|
#include "util/u_math.h"
|
|
#include "util/slab.h"
|
|
|
|
#include "nine_buffer_upload.h"
|
|
|
|
#include "nine_debug.h"
|
|
|
|
#define DBG_CHANNEL (DBG_INDEXBUFFER|DBG_VERTEXBUFFER)
|
|
|
|
struct nine_buffer_group {
|
|
unsigned refcount; /* How many sub-buffers live inside the buffer */
|
|
struct pipe_resource *resource;
|
|
struct pipe_transfer *transfer;
|
|
uint8_t *map;
|
|
unsigned free_offset; /* Aligned offset to the upload buffer, pointing
|
|
* at the first unused byte. */
|
|
};
|
|
|
|
struct nine_subbuffer {
|
|
struct nine_buffer_group *parent; /* Can be NULL */
|
|
struct pipe_resource *resource; /* The parent resource if apply */
|
|
unsigned offset; /* Offset inside the resource */
|
|
/* If there is no parent, the resource map. Else NULL. */
|
|
struct pipe_transfer *transfer;
|
|
uint8_t *map;
|
|
};
|
|
|
|
struct nine_buffer_upload {
|
|
struct pipe_context *pipe;
|
|
struct slab_mempool buffer_pool;
|
|
|
|
unsigned buffers_size; /* Size of the big allocated buffers */
|
|
unsigned num_buffers;
|
|
struct nine_buffer_group *buffers;
|
|
};
|
|
|
|
static void
|
|
nine_upload_create_buffer_group(struct nine_buffer_upload *upload,
|
|
struct nine_buffer_group *group)
|
|
{
|
|
struct pipe_resource resource;
|
|
struct pipe_screen *screen = upload->pipe->screen;
|
|
DBG("Allocating %p %p\n", upload, group);
|
|
|
|
memset(&resource, 0, sizeof(resource));
|
|
resource.target = PIPE_BUFFER;
|
|
resource.format = PIPE_FORMAT_R8_UNORM;
|
|
resource.bind = PIPE_BIND_VERTEX_BUFFER;
|
|
resource.usage = PIPE_USAGE_STREAM;
|
|
resource.width0 = upload->buffers_size;
|
|
resource.height0 = 1;
|
|
resource.depth0 = 1;
|
|
resource.array_size = 1;
|
|
resource.flags = PIPE_RESOURCE_FLAG_MAP_PERSISTENT |
|
|
PIPE_RESOURCE_FLAG_MAP_COHERENT;
|
|
|
|
group->refcount = 0;
|
|
group->resource = screen->resource_create(screen, &resource);
|
|
if (group->resource == NULL)
|
|
return;
|
|
|
|
group->map = pipe_buffer_map_range(upload->pipe, group->resource,
|
|
0, upload->buffers_size,
|
|
PIPE_MAP_WRITE |
|
|
#ifdef PIPE_ARCH_X86
|
|
PIPE_MAP_ONCE |
|
|
#endif
|
|
PIPE_MAP_PERSISTENT |
|
|
PIPE_MAP_COHERENT,
|
|
&group->transfer);
|
|
if (group->map == NULL) {
|
|
group->transfer = NULL;
|
|
pipe_resource_reference(&group->resource, NULL);
|
|
return;
|
|
}
|
|
|
|
group->free_offset = 0;
|
|
DBG("Success: %p %p\n", group->map, group->map+upload->buffers_size);
|
|
}
|
|
|
|
static void
|
|
nine_upload_destroy_buffer_group(struct nine_buffer_upload *upload,
|
|
struct nine_buffer_group *group)
|
|
{
|
|
DBG("%p %p\n", upload, group);
|
|
DBG("Release: %p %p\n", group->map, group->map+upload->buffers_size);
|
|
assert(group->refcount == 0);
|
|
|
|
if (group->transfer)
|
|
pipe_buffer_unmap(upload->pipe, group->transfer);
|
|
if (group->resource)
|
|
pipe_resource_reference(&group->resource, NULL);
|
|
group->transfer = NULL;
|
|
group->map = NULL;
|
|
}
|
|
|
|
struct nine_buffer_upload *
|
|
nine_upload_create(struct pipe_context *pipe, unsigned buffers_size,
|
|
unsigned num_buffers)
|
|
{
|
|
struct nine_buffer_upload *upload;
|
|
int i;
|
|
|
|
DBG("\n");
|
|
|
|
if (!pipe->screen->get_param(pipe->screen,
|
|
PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT))
|
|
return NULL;
|
|
|
|
upload = CALLOC_STRUCT(nine_buffer_upload);
|
|
|
|
if (!upload)
|
|
return NULL;
|
|
|
|
slab_create(&upload->buffer_pool, sizeof(struct nine_subbuffer), 4096);
|
|
|
|
upload->pipe = pipe;
|
|
upload->buffers_size = align(buffers_size, 4096);
|
|
upload->num_buffers = num_buffers;
|
|
|
|
upload->buffers = CALLOC(num_buffers, sizeof(struct nine_buffer_group));
|
|
if (!upload->buffers)
|
|
goto buffers_fail;
|
|
|
|
for (i = 0; i < num_buffers; i++)
|
|
nine_upload_create_buffer_group(upload, &upload->buffers[i]);
|
|
|
|
return upload;
|
|
|
|
buffers_fail:
|
|
slab_destroy(&upload->buffer_pool);
|
|
FREE(upload);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
nine_upload_destroy(struct nine_buffer_upload *upload)
|
|
{
|
|
int i;
|
|
|
|
DBG("%p\n", upload);
|
|
|
|
for (i = 0; i < upload->num_buffers; i++)
|
|
nine_upload_destroy_buffer_group(upload, &upload->buffers[i]);
|
|
slab_destroy(&upload->buffer_pool);
|
|
FREE(upload);
|
|
}
|
|
|
|
struct nine_subbuffer *
|
|
nine_upload_create_buffer(struct nine_buffer_upload *upload,
|
|
unsigned buffer_size)
|
|
{
|
|
struct nine_subbuffer *buf = slab_alloc_st(&upload->buffer_pool);
|
|
struct nine_buffer_group *group = NULL;
|
|
unsigned size = align(buffer_size, 4096);
|
|
int i = 0;
|
|
|
|
DBG("%p %d\n", upload, buffer_size);
|
|
|
|
if (!buf)
|
|
return NULL;
|
|
|
|
for (i = 0; i < upload->num_buffers; i++) {
|
|
group = &upload->buffers[i];
|
|
if (group->resource &&
|
|
group->free_offset + size <= upload->buffers_size)
|
|
break;
|
|
}
|
|
|
|
if (i == upload->num_buffers) {
|
|
/* Allocate lonely buffer */
|
|
struct pipe_resource resource;
|
|
struct pipe_screen *screen = upload->pipe->screen;
|
|
|
|
DBG("Allocating buffer\n");
|
|
buf->parent = NULL;
|
|
|
|
memset(&resource, 0, sizeof(resource));
|
|
resource.target = PIPE_BUFFER;
|
|
resource.format = PIPE_FORMAT_R8_UNORM;
|
|
resource.bind = PIPE_BIND_VERTEX_BUFFER;
|
|
resource.usage = PIPE_USAGE_STREAM;
|
|
resource.width0 = buffer_size;
|
|
resource.height0 = 1;
|
|
resource.depth0 = 1;
|
|
resource.array_size = 1;
|
|
resource.flags = PIPE_RESOURCE_FLAG_MAP_PERSISTENT |
|
|
PIPE_RESOURCE_FLAG_MAP_COHERENT;
|
|
|
|
buf->resource = screen->resource_create(screen, &resource);
|
|
if (buf->resource == NULL) {
|
|
slab_free_st(&upload->buffer_pool, buf);
|
|
return NULL;
|
|
}
|
|
|
|
buf->map = pipe_buffer_map_range(upload->pipe, buf->resource,
|
|
0, buffer_size,
|
|
PIPE_MAP_WRITE |
|
|
#ifdef PIPE_ARCH_X86
|
|
PIPE_MAP_ONCE |
|
|
#endif
|
|
PIPE_MAP_PERSISTENT |
|
|
PIPE_MAP_COHERENT,
|
|
&buf->transfer);
|
|
if (buf->map == NULL) {
|
|
pipe_resource_reference(&buf->resource, NULL);
|
|
slab_free_st(&upload->buffer_pool, buf);
|
|
return NULL;
|
|
}
|
|
buf->offset = 0;
|
|
return buf;
|
|
}
|
|
|
|
DBG("Using buffer group %d\n", i);
|
|
|
|
buf->parent = group;
|
|
buf->resource = NULL;
|
|
pipe_resource_reference(&buf->resource, group->resource);
|
|
buf->offset = group->free_offset;
|
|
|
|
group->free_offset += size;
|
|
group->refcount += 1;
|
|
|
|
return buf;
|
|
}
|
|
|
|
void
|
|
nine_upload_release_buffer(struct nine_buffer_upload *upload,
|
|
struct nine_subbuffer *buf)
|
|
{
|
|
DBG("%p %p %p\n", upload, buf, buf->parent);
|
|
|
|
if (buf->parent) {
|
|
pipe_resource_reference(&buf->resource, NULL);
|
|
buf->parent->refcount--;
|
|
if (buf->parent->refcount == 0) {
|
|
/* Allocate new buffer */
|
|
nine_upload_destroy_buffer_group(upload, buf->parent);
|
|
nine_upload_create_buffer_group(upload, buf->parent);
|
|
}
|
|
} else {
|
|
/* lonely buffer */
|
|
if (buf->transfer)
|
|
pipe_buffer_unmap(upload->pipe, buf->transfer);
|
|
pipe_resource_reference(&buf->resource, NULL);
|
|
}
|
|
|
|
slab_free_st(&upload->buffer_pool, buf);
|
|
}
|
|
|
|
uint8_t *
|
|
nine_upload_buffer_get_map(struct nine_subbuffer *buf)
|
|
{
|
|
if (buf->parent) {
|
|
DBG("%d\n", buf->parent->refcount);
|
|
return buf->parent->map + buf->offset;
|
|
}
|
|
/* lonely buffer */
|
|
return buf->map;
|
|
}
|
|
|
|
struct pipe_resource *
|
|
nine_upload_buffer_resource_and_offset(struct nine_subbuffer *buf,
|
|
unsigned *offset)
|
|
{
|
|
*offset = buf->offset;
|
|
return buf->resource;
|
|
}
|