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/*
* Copyright 2014, 2015 Red Hat.
*
* 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.
*/
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "virgl_context.h"
#include "virgl_encode.h"
#include "virgl_resource.h"
#include "virgl_screen.h"
void virgl_buffer_transfer_unmap(struct pipe_context *ctx,
struct pipe_transfer *transfer)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_transfer *trans = virgl_transfer(transfer);
bool persistent_coherent = trans->base.usage & (PIPE_MAP_PERSISTENT |
PIPE_MAP_COHERENT);
if ((trans->base.usage & PIPE_MAP_WRITE) && !persistent_coherent) {
if (transfer->usage & PIPE_MAP_FLUSH_EXPLICIT) {
if (trans->range.end <= trans->range.start) {
virgl_resource_destroy_transfer(vctx, trans);
return;
}
transfer->box.x += trans->range.start;
transfer->box.width = trans->range.end - trans->range.start;
trans->offset = transfer->box.x;
}
if (trans->copy_src_hw_res && trans->direction == VIRGL_TRANSFER_TO_HOST) {
virgl_encode_copy_transfer(vctx, trans);
virgl_resource_destroy_transfer(vctx, trans);
} else if (trans->copy_src_hw_res && trans->direction == VIRGL_TRANSFER_FROM_HOST) {
// if it is readback, then we have already encoded transfer
virgl_resource_destroy_transfer(vctx, trans);
} else {
virgl_transfer_queue_unmap(&vctx->queue, trans);
}
} else
virgl_resource_destroy_transfer(vctx, trans);
}
void virgl_buffer_transfer_flush_region(struct pipe_context *ctx,
struct pipe_transfer *transfer,
const struct pipe_box *box)
{
struct virgl_transfer *trans = virgl_transfer(transfer);
/*
* FIXME: This is not optimal. For example,
*
* glMapBufferRange(.., 0, 100, GL_MAP_FLUSH_EXPLICIT_BIT)
* glFlushMappedBufferRange(.., 25, 30)
* glFlushMappedBufferRange(.., 65, 70)
*
* We'll end up flushing 25 --> 70.
*/
util_range_add(transfer->resource, &trans->range, box->x, box->x + box->width);
}
void virgl_buffer_init(struct virgl_resource *res)
{
}
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