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/*
* Copyright 2010 Red Hat Inc.
*
* 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: Dave Airlie
*/
#include <stdio.h>
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "util/u_upload_mgr.h"
#include "util/u_math.h"
#include "r300_screen_buffer.h"
void r300_upload_index_buffer(struct r300_context *r300,
struct pipe_resource **index_buffer,
unsigned index_size, unsigned *start,
unsigned count, uint8_t *ptr)
{
unsigned index_offset;
*index_buffer = NULL;
u_upload_data(r300->uploader,
0, count * index_size,
ptr + (*start * index_size),
&index_offset,
index_buffer);
*start = index_offset / index_size;
}
static void r300_buffer_destroy(struct pipe_screen *screen,
struct pipe_resource *buf)
{
struct r300_screen *r300screen = r300_screen(screen);
struct r300_resource *rbuf = r300_resource(buf);
if (rbuf->constant_buffer)
FREE(rbuf->constant_buffer);
if (rbuf->buf)
pb_reference(&rbuf->buf, NULL);
util_slab_free(&r300screen->pool_buffers, rbuf);
}
static struct pipe_transfer*
r300_buffer_get_transfer(struct pipe_context *context,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box)
{
struct r300_context *r300 = r300_context(context);
struct pipe_transfer *transfer =
util_slab_alloc(&r300->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 r300_buffer_transfer_destroy(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct r300_context *r300 = r300_context(pipe);
util_slab_free(&r300->pool_transfers, transfer);
}
static void *
r300_buffer_transfer_map( struct pipe_context *pipe,
struct pipe_transfer *transfer )
{
struct r300_context *r300 = r300_context(pipe);
struct r300_screen *r300screen = r300_screen(pipe->screen);
struct radeon_winsys *rws = r300screen->rws;
struct r300_resource *rbuf = r300_resource(transfer->resource);
uint8_t *map;
enum pipe_transfer_usage usage;
if (rbuf->b.b.user_ptr)
return rbuf->b.b.user_ptr + transfer->box.x;
if (rbuf->constant_buffer)
return (uint8_t *) rbuf->constant_buffer + transfer->box.x;
/* Buffers are never used for write, therefore mapping for read can be
* unsynchronized. */
usage = transfer->usage;
if (!(usage & PIPE_TRANSFER_WRITE)) {
usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
}
map = rws->buffer_map(rbuf->cs_buf, r300->cs, usage);
if (map == NULL)
return NULL;
return map + transfer->box.x;
}
static void r300_buffer_transfer_unmap( struct pipe_context *pipe,
struct pipe_transfer *transfer )
{
/* no-op */
}
static const struct u_resource_vtbl r300_buffer_vtbl =
{
NULL, /* get_handle */
r300_buffer_destroy, /* resource_destroy */
r300_buffer_get_transfer, /* get_transfer */
r300_buffer_transfer_destroy, /* transfer_destroy */
r300_buffer_transfer_map, /* transfer_map */
NULL, /* transfer_flush_region */
r300_buffer_transfer_unmap, /* transfer_unmap */
NULL /* transfer_inline_write */
};
struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
const struct pipe_resource *templ)
{
struct r300_screen *r300screen = r300_screen(screen);
struct r300_resource *rbuf;
unsigned alignment = 16;
rbuf = util_slab_alloc(&r300screen->pool_buffers);
rbuf->b.b = *templ;
rbuf->b.vtbl = &r300_buffer_vtbl;
pipe_reference_init(&rbuf->b.b.reference, 1);
rbuf->b.b.screen = screen;
rbuf->b.b.user_ptr = NULL;
rbuf->domain = RADEON_DOMAIN_GTT;
rbuf->buf = NULL;
rbuf->constant_buffer = NULL;
/* Alloc constant buffers in RAM. */
if (templ->bind & PIPE_BIND_CONSTANT_BUFFER) {
rbuf->constant_buffer = MALLOC(templ->width0);
return &rbuf->b.b;
}
rbuf->buf =
r300screen->rws->buffer_create(r300screen->rws,
rbuf->b.b.width0, alignment,
rbuf->b.b.bind, rbuf->domain);
if (!rbuf->buf) {
util_slab_free(&r300screen->pool_buffers, rbuf);
return NULL;
}
rbuf->cs_buf =
r300screen->rws->buffer_get_cs_handle(rbuf->buf);
return &rbuf->b.b;
}
struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen,
void *ptr, unsigned size,
unsigned bind)
{
struct r300_screen *r300screen = r300_screen(screen);
struct r300_resource *rbuf;
rbuf = util_slab_alloc(&r300screen->pool_buffers);
pipe_reference_init(&rbuf->b.b.reference, 1);
rbuf->b.b.screen = screen;
rbuf->b.b.target = PIPE_BUFFER;
rbuf->b.b.format = PIPE_FORMAT_R8_UNORM;
rbuf->b.b.usage = PIPE_USAGE_IMMUTABLE;
rbuf->b.b.bind = bind;
rbuf->b.b.width0 = ~0;
rbuf->b.b.height0 = 1;
rbuf->b.b.depth0 = 1;
rbuf->b.b.array_size = 1;
rbuf->b.b.flags = 0;
rbuf->b.b.user_ptr = ptr;
rbuf->b.vtbl = &r300_buffer_vtbl;
rbuf->domain = RADEON_DOMAIN_GTT;
rbuf->buf = NULL;
rbuf->constant_buffer = NULL;
return &rbuf->b.b;
}
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