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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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.
*
**************************************************************************/
/* Author:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "draw/draw_context.h"
#include "sp_flush.h"
#include "sp_context.h"
#include "sp_state.h"
#include "sp_tile_cache.h"
#include "sp_tex_tile_cache.h"
void
softpipe_flush( struct pipe_context *pipe,
unsigned flags,
struct pipe_fence_handle **fence )
{
struct softpipe_context *softpipe = softpipe_context(pipe);
uint i;
draw_flush(softpipe->draw);
if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
for (i = 0; i < softpipe->num_sampler_views; i++) {
sp_flush_tex_tile_cache(softpipe->tex_cache[i]);
}
for (i = 0; i < softpipe->num_vertex_sampler_views; i++) {
sp_flush_tex_tile_cache(softpipe->vertex_tex_cache[i]);
}
for (i = 0; i < softpipe->num_geometry_sampler_views; i++) {
sp_flush_tex_tile_cache(softpipe->geometry_tex_cache[i]);
}
}
if (flags & PIPE_FLUSH_SWAPBUFFERS) {
/* If this is a swapbuffers, just flush color buffers.
*
* The zbuffer changes are not discarded, but held in the cache
* in the hope that a later clear will wipe them out.
*/
for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++)
if (softpipe->cbuf_cache[i])
sp_flush_tile_cache(softpipe->cbuf_cache[i]);
/* Need this call for hardware buffers before swapbuffers.
*
* there should probably be another/different flush-type function
* that's called before swapbuffers because we don't always want
* to unmap surfaces when flushing.
*/
softpipe_unmap_transfers(softpipe);
}
else if (flags & PIPE_FLUSH_RENDER_CACHE) {
for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++)
if (softpipe->cbuf_cache[i])
sp_flush_tile_cache(softpipe->cbuf_cache[i]);
if (softpipe->zsbuf_cache)
sp_flush_tile_cache(softpipe->zsbuf_cache);
softpipe->dirty_render_cache = FALSE;
}
/* Enable to dump BMPs of the color/depth buffers each frame */
#if 0
if(flags & PIPE_FLUSH_FRAME) {
static unsigned frame_no = 1;
static char filename[256];
util_snprintf(filename, sizeof(filename), "cbuf_%u.bmp", frame_no);
debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.cbufs[0]);
util_snprintf(filename, sizeof(filename), "zsbuf_%u.bmp", frame_no);
debug_dump_surface_bmp(softpipe, filename, softpipe->framebuffer.zsbuf);
++frame_no;
}
#endif
if (fence)
*fence = NULL;
}
/**
* Flush context if necessary.
*
* Returns FALSE if it would have block, but do_not_block was set, TRUE
* otherwise.
*
* TODO: move this logic to an auxiliary library?
*/
boolean
softpipe_flush_resource(struct pipe_context *pipe,
struct pipe_resource *texture,
unsigned level,
int layer,
unsigned flush_flags,
boolean read_only,
boolean cpu_access,
boolean do_not_block)
{
unsigned referenced;
referenced = pipe->is_resource_referenced(pipe, texture, level, layer);
if ((referenced & PIPE_REFERENCED_FOR_WRITE) ||
((referenced & PIPE_REFERENCED_FOR_READ) && !read_only)) {
/*
* TODO: The semantics of these flush flags are too obtuse. They should
* disappear and the pipe driver should just ensure that all visible
* side-effects happen when they need to happen.
*/
if (referenced & PIPE_REFERENCED_FOR_WRITE)
flush_flags |= PIPE_FLUSH_RENDER_CACHE;
if (referenced & PIPE_REFERENCED_FOR_READ)
flush_flags |= PIPE_FLUSH_TEXTURE_CACHE;
if (cpu_access) {
/*
* Flush and wait.
*/
struct pipe_fence_handle *fence = NULL;
if (do_not_block)
return FALSE;
pipe->flush(pipe, flush_flags, &fence);
if (fence) {
/*
* This is for illustrative purposes only, as softpipe does not
* have fences.
*/
pipe->screen->fence_finish(pipe->screen, fence, 0);
pipe->screen->fence_reference(pipe->screen, &fence, NULL);
}
} else {
/*
* Just flush.
*/
pipe->flush(pipe, flush_flags, NULL);
}
}
return TRUE;
}
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