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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
* Copyright 2010 Marek Olšák <maraeo@gmail.com>
*
* 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 "draw/draw_context.h"
#include "draw/draw_private.h"
#include "util/u_simple_list.h"
#include "r300_context.h"
#include "r300_cs.h"
#include "r300_emit.h"
#include "r300_flush.h"
static void r300_flush(struct pipe_context* pipe,
unsigned flags,
struct pipe_fence_handle** fence)
{
struct r300_context *r300 = r300_context(pipe);
struct r300_query *query;
struct r300_atom *atom;
struct pipe_framebuffer_state *fb;
unsigned i;
CS_LOCALS(r300);
(void) cs_count;
/* We probably need to flush Draw, but we may have been called from
* within Draw. This feels kludgy, but it might be the best thing.
*
* Of course, the best thing is to kill Draw with fire. :3 */
if (r300->draw && !r300->draw->flushing) {
draw_flush(r300->draw);
}
if (r300->dirty_hw) {
r300_emit_query_end(r300);
FLUSH_CS;
r300->dirty_hw = 0;
/* New kitchen sink, baby. */
foreach(atom, &r300->atom_list) {
if (atom->state || atom->allow_null_state) {
atom->dirty = TRUE;
}
}
/* Unmark HWTCL state for SWTCL. */
if (!r300->screen->caps.has_tcl) {
r300->vs_state.dirty = FALSE;
r300->vs_constants.dirty = FALSE;
}
}
/* reset flushed query */
foreach(query, &r300->query_list) {
query->flushed = TRUE;
}
/* XXX
*
* This is a preliminary implementation of glFinish. Note that st/mesa
* uses a non-null fence when glFinish is called and then waits for
* the fence. Instead of returning the actual fence, we do the sync
* directly.
*
* The ideal implementation should use something like EmitIrqLocked and
* WaitIrq, or better, real fences.
*
* This feature degrades performance to the level of r300c for games that
* use glFinish a lot, even openarena does. Ideally we wouldn't need
* glFinish at all if we had proper throttling in swapbuffers so that
* the CPU wouldn't outrun the GPU by several frames, so this is basically
* a temporary fix for the input lag. Once swap&sync works with DRI2,
* I'll be happy to remove this code.
*
* - M. */
if (fence && r300->fb_state.state) {
fb = r300->fb_state.state;
for (i = 0; i < fb->nr_cbufs; i++) {
if (fb->cbufs[i]->texture) {
r300->rws->buffer_wait(r300->rws,
r300_texture(fb->cbufs[i]->texture)->buffer);
}
if (fb->zsbuf) {
r300->rws->buffer_wait(r300->rws,
r300_texture(fb->zsbuf->texture)->buffer);
}
}
}
}
void r300_init_flush_functions(struct r300_context* r300)
{
r300->context.flush = r300_flush;
}
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