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/*
* 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 <jglisse@redhat.com>
*/
#include <errno.h>
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "r600.h"
#include "r600_pipe.h"
#include "r600_resource.h"
struct r600_upload {
struct r600_pipe_context *rctx;
struct r600_bo *buffer;
char *ptr;
unsigned size;
unsigned default_size;
unsigned total_alloc_size;
unsigned offset;
unsigned alignment;
};
struct r600_upload *r600_upload_create(struct r600_pipe_context *rctx,
unsigned default_size,
unsigned alignment)
{
struct r600_upload *upload = CALLOC_STRUCT(r600_upload);
if (upload == NULL)
return NULL;
upload->rctx = rctx;
upload->size = 0;
upload->default_size = default_size;
upload->alignment = alignment;
upload->ptr = NULL;
upload->buffer = NULL;
upload->total_alloc_size = 0;
return upload;
}
void r600_upload_flush(struct r600_upload *upload)
{
if (upload->buffer) {
r600_bo_reference(upload->rctx->radeon, &upload->buffer, NULL);
}
upload->default_size = MAX2(upload->total_alloc_size, upload->default_size);
upload->total_alloc_size = 0;
upload->size = 0;
upload->ptr = NULL;
upload->buffer = NULL;
}
void r600_upload_destroy(struct r600_upload *upload)
{
r600_upload_flush(upload);
FREE(upload);
}
int r600_upload_buffer(struct r600_upload *upload, unsigned offset,
unsigned size, struct r600_resource_buffer *in_buffer,
unsigned *out_offset, unsigned *out_size,
struct r600_bo **out_buffer)
{
unsigned alloc_size = align(size, upload->alignment);
const void *in_ptr = NULL;
if (upload->offset + alloc_size > upload->size) {
if (upload->size) {
r600_bo_reference(upload->rctx->radeon, &upload->buffer, NULL);
}
upload->size = align(MAX2(upload->default_size, alloc_size), 4096);
upload->total_alloc_size += upload->size;
upload->offset = 0;
upload->buffer = r600_bo(upload->rctx->radeon, upload->size, 4096, PIPE_BIND_VERTEX_BUFFER, 0);
if (upload->buffer == NULL) {
return -ENOMEM;
}
upload->ptr = r600_bo_map(upload->rctx->radeon, upload->buffer, 0, NULL);
}
in_ptr = in_buffer->user_buffer;
memcpy(upload->ptr + upload->offset, in_ptr + offset, size);
*out_offset = upload->offset;
*out_size = upload->size;
*out_buffer = upload->buffer;
upload->offset += alloc_size;
return 0;
}
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