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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_format.h"
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "virgl_context.h"
#include "virgl_resource.h"
#include "virgl_screen.h"
static void virgl_copy_region_with_blit(struct pipe_context *pipe,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
struct pipe_blit_info blit;
memset(&blit, 0, sizeof(blit));
blit.src.resource = src;
blit.src.format = src->format;
blit.src.level = src_level;
blit.src.box = *src_box;
blit.dst.resource = dst;
blit.dst.format = dst->format;
blit.dst.level = dst_level;
blit.dst.box.x = dstx;
blit.dst.box.y = dsty;
blit.dst.box.z = dstz;
blit.dst.box.width = src_box->width;
blit.dst.box.height = src_box->height;
blit.dst.box.depth = src_box->depth;
blit.mask = util_format_get_mask(src->format) &
util_format_get_mask(dst->format);
blit.filter = PIPE_TEX_FILTER_NEAREST;
if (blit.mask) {
pipe->blit(pipe, &blit);
}
}
static unsigned temp_bind(unsigned orig)
{
unsigned warn = ~(PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL |
PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DISPLAY_TARGET);
if (orig & warn)
debug_printf("VIRGL: Warning, possibly unhandled bind: %x\n",
orig & warn);
return orig & (PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET);
}
static void virgl_init_temp_resource_from_box(struct pipe_resource *res,
struct pipe_resource *orig,
const struct pipe_box *box,
unsigned level, unsigned flags)
{
memset(res, 0, sizeof(*res));
res->bind = temp_bind(orig->bind);
res->format = orig->format;
res->width0 = box->width;
res->height0 = box->height;
res->depth0 = 1;
res->array_size = 1;
res->usage = PIPE_USAGE_STAGING;
res->flags = flags;
/* We must set the correct texture target and dimensions for a 3D box. */
if (box->depth > 1 && util_max_layer(orig, level) > 0)
res->target = orig->target;
else
res->target = PIPE_TEXTURE_2D;
switch (res->target) {
case PIPE_TEXTURE_1D_ARRAY:
case PIPE_TEXTURE_2D_ARRAY:
case PIPE_TEXTURE_CUBE_ARRAY:
res->array_size = box->depth;
break;
case PIPE_TEXTURE_3D:
res->depth0 = box->depth;
break;
default:
break;
}
}
static void *texture_transfer_map_plain(struct pipe_context *ctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **transfer)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_winsys *vws = virgl_screen(ctx->screen)->vws;
struct virgl_resource *vtex = virgl_resource(resource);
struct virgl_transfer *trans;
trans = virgl_resource_create_transfer(&vctx->transfer_pool, resource,
&vtex->metadata, level, usage, box);
trans->resolve_tmp = NULL;
assert(resource->nr_samples <= 1);
if (virgl_res_needs_flush(vctx, trans))
ctx->flush(ctx, NULL, 0);
if (virgl_res_needs_readback(vctx, vtex, usage, level)) {
vws->transfer_get(vws, vtex->hw_res, box, trans->base.stride,
trans->l_stride, trans->offset, level);
vws->resource_wait(vws, vtex->hw_res);
}
void *ptr = vws->resource_map(vws, vtex->hw_res);
if (!ptr) {
virgl_resource_destroy_transfer(&vctx->transfer_pool, trans);
return NULL;
}
*transfer = &trans->base;
return ptr + trans->offset;
}
static void *texture_transfer_map_resolve(struct pipe_context *ctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **transfer)
{
struct pipe_resource templ, *resolve_tmp;
virgl_init_temp_resource_from_box(&templ, resource, box, level, 0);
resolve_tmp = ctx->screen->resource_create(ctx->screen, &templ);
if (!resolve_tmp)
return NULL;
virgl_copy_region_with_blit(ctx, resolve_tmp, 0, 0, 0, 0, resource, level, box);
ctx->flush(ctx, NULL, 0);
void *ptr = texture_transfer_map_plain(ctx, resolve_tmp, 0, usage, box,
transfer);
if (!ptr) {
pipe_resource_reference(&resolve_tmp, NULL);
return NULL;
}
virgl_transfer(*transfer)->resolve_tmp = virgl_resource(resolve_tmp);
struct virgl_resource_metadata *data = &virgl_resource(resolve_tmp)->metadata;
assert((*transfer)->stride == data->stride[0]);
assert((*transfer)->layer_stride == data->layer_stride[0]);
assert(virgl_transfer(*transfer)->offset == 0);
return ptr;
}
static void *virgl_texture_transfer_map(struct pipe_context *ctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **transfer)
{
if (resource->nr_samples > 1)
return texture_transfer_map_resolve(ctx, resource, level, usage, box,
transfer);
return texture_transfer_map_plain(ctx, resource, level, usage, box, transfer);
}
static void virgl_texture_transfer_unmap(struct pipe_context *ctx,
struct pipe_transfer *transfer)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_transfer *trans = virgl_transfer(transfer);
struct virgl_resource *vtex = virgl_resource(transfer->resource);
bool queue_unmap = false;
if (transfer->usage & PIPE_TRANSFER_WRITE &&
(transfer->usage & PIPE_TRANSFER_FLUSH_EXPLICIT) == 0) {
if (trans->resolve_tmp) {
struct virgl_winsys *vws = virgl_screen(ctx->screen)->vws;
vws->transfer_put(vws, vtex->hw_res, &transfer->box,
trans->base.stride, trans->l_stride,
trans->offset, transfer->level);
} else
queue_unmap = true;
}
pipe_resource_reference((struct pipe_resource **)&trans->resolve_tmp, NULL);
if (queue_unmap)
virgl_transfer_queue_unmap(&vctx->queue, trans);
else
virgl_resource_destroy_transfer(&vctx->transfer_pool, trans);
}
static const struct u_resource_vtbl virgl_texture_vtbl =
{
virgl_resource_get_handle, /* get_handle */
virgl_resource_destroy, /* resource_destroy */
virgl_texture_transfer_map, /* transfer_map */
NULL, /* transfer_flush_region */
virgl_texture_transfer_unmap, /* transfer_unmap */
};
void virgl_texture_init(struct virgl_resource *res)
{
res->u.vtbl = &virgl_texture_vtbl;
}
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