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Revert "r300g: handle DISCARD_WHOLE_RESOURCE for buffers"

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This reverts commit 437c748bf5.

The commit is wrong for several reasons. One of them is when we grab
a new buffer, we should update all the states it is bound in,
including all parallel contexts. I don't think this is even doable.

The correct solution would be upload data via a temporary buffer and
do resource_copy_region to the original one.

https://bugs.freedesktop.org/show_bug.cgi?id=36088
This commit is contained in:
Marek Olšák
2011-04-08 23:19:53 +02:00
parent 69c71396c6
commit ee678895e9
1 changed files with 10 additions and 25 deletions
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35
src/gallium/drivers/r300/r300_screen_buffer.c
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@@ -67,20 +67,6 @@ static void r300_buffer_destroy(struct pipe_screen *screen,
util_slab_free(&r300screen->pool_buffers, rbuf);
}
static boolean r300_setup_new_winsys_buffer(struct r300_winsys_screen *rws,
struct r300_resource *rbuf)
{
rbuf->buf = rws->buffer_create(rws,
rbuf->b.b.b.width0, 16,
rbuf->b.b.b.bind, rbuf->b.b.b.usage,
rbuf->domain);
if (!rbuf->buf)
return FALSE;
rbuf->cs_buf = rws->buffer_get_cs_handle(rbuf->buf);
return TRUE;
}
static struct pipe_transfer*
r300_buffer_get_transfer(struct pipe_context *context,
struct pipe_resource *resource,
@@ -128,16 +114,6 @@ r300_buffer_transfer_map( struct pipe_context *pipe,
if (rbuf->constant_buffer)
return (uint8_t *) rbuf->constant_buffer + transfer->box.x;
/* Discard the whole resource if needed. */
if (transfer->usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE &&
(rws->cs_is_buffer_referenced(r300->cs, rbuf->cs_buf) ||
rws->buffer_is_busy(rbuf->buf))) {
r300_winsys_bo_reference(&rbuf->buf, NULL);
r300_setup_new_winsys_buffer(rws, rbuf);
assert(rbuf->buf);
}
map = rws->buffer_map(rbuf->buf, r300->cs, transfer->usage);
if (map == NULL)
@@ -203,6 +179,7 @@ struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
{
struct r300_screen *r300screen = r300_screen(screen);
struct r300_resource *rbuf;
unsigned alignment = 16;
rbuf = util_slab_alloc(&r300screen->pool_buffers);
@@ -222,11 +199,19 @@ struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
return &rbuf->b.b.b;
}
if (!r300_setup_new_winsys_buffer(r300screen->rws, rbuf)) {
rbuf->buf =
r300screen->rws->buffer_create(r300screen->rws,
rbuf->b.b.b.width0, alignment,
rbuf->b.b.b.bind, rbuf->b.b.b.usage,
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.b;
}