85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
/*
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* Copyright 2014, 2015 Red Hat.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "util/u_inlines.h"
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#include "util/u_memory.h"
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#include "virgl_context.h"
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#include "virgl_encode.h"
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#include "virgl_resource.h"
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#include "virgl_screen.h"
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void virgl_buffer_transfer_unmap(struct pipe_context *ctx,
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struct pipe_transfer *transfer)
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{
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struct virgl_context *vctx = virgl_context(ctx);
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struct virgl_transfer *trans = virgl_transfer(transfer);
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bool persistent_coherent = trans->base.usage & (PIPE_MAP_PERSISTENT |
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PIPE_MAP_COHERENT);
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if ((trans->base.usage & PIPE_MAP_WRITE) && !persistent_coherent) {
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if (transfer->usage & PIPE_MAP_FLUSH_EXPLICIT) {
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if (trans->range.end <= trans->range.start) {
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virgl_resource_destroy_transfer(vctx, trans);
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return;
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}
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transfer->box.x += trans->range.start;
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transfer->box.width = trans->range.end - trans->range.start;
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trans->offset = transfer->box.x;
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}
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if (trans->copy_src_hw_res && trans->direction == VIRGL_TRANSFER_TO_HOST) {
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virgl_encode_copy_transfer(vctx, trans);
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virgl_resource_destroy_transfer(vctx, trans);
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} else if (trans->copy_src_hw_res && trans->direction == VIRGL_TRANSFER_FROM_HOST) {
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// if it is readback, then we have already encoded transfer
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virgl_resource_destroy_transfer(vctx, trans);
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} else {
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virgl_transfer_queue_unmap(&vctx->queue, trans);
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}
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} else
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virgl_resource_destroy_transfer(vctx, trans);
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}
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void virgl_buffer_transfer_flush_region(struct pipe_context *ctx,
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struct pipe_transfer *transfer,
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const struct pipe_box *box)
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{
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struct virgl_transfer *trans = virgl_transfer(transfer);
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/*
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* FIXME: This is not optimal. For example,
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*
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* glMapBufferRange(.., 0, 100, GL_MAP_FLUSH_EXPLICIT_BIT)
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* glFlushMappedBufferRange(.., 25, 30)
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* glFlushMappedBufferRange(.., 65, 70)
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*
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* We'll end up flushing 25 --> 70.
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*/
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util_range_add(transfer->resource, &trans->range, box->x, box->x + box->width);
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}
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void virgl_buffer_init(struct virgl_resource *res)
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{
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}
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