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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 "util/u_string.h"
#include "draw/draw_context.h"
#include "lp_flush.h"
#include "lp_context.h"
#include "lp_setup.h"
/**
* \param flags bitmask of PIPE_FLUSH_x flags
* \param fence if non-null, returns pointer to a fence which can be waited on
*/
void
llvmpipe_flush( struct pipe_context *pipe,
unsigned flags,
struct pipe_fence_handle **fence )
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
draw_flush(llvmpipe->draw);
/* ask the setup module to flush */
lp_setup_flush(llvmpipe->setup, flags, fence);
/* Enable to dump BMPs of the color/depth buffers each frame */
if (0) {
if (flags & PIPE_FLUSH_FRAME) {
static unsigned frame_no = 1;
char filename[256];
unsigned i;
for (i = 0; i < llvmpipe->framebuffer.nr_cbufs; i++) {
util_snprintf(filename, sizeof(filename), "cbuf%u_%u", i, frame_no);
debug_dump_surface_bmp(&llvmpipe->pipe, filename, llvmpipe->framebuffer.cbufs[0]);
}
if (0) {
util_snprintf(filename, sizeof(filename), "zsbuf_%u", frame_no);
debug_dump_surface_bmp(&llvmpipe->pipe, filename, llvmpipe->framebuffer.zsbuf);
}
++frame_no;
}
}
}
/**
* 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
llvmpipe_flush_resource(struct pipe_context *pipe,
struct pipe_resource *resource,
unsigned face,
unsigned level,
unsigned flush_flags,
boolean read_only,
boolean cpu_access,
boolean do_not_block)
{
unsigned referenced;
referenced = pipe->is_resource_referenced(pipe, resource, face, level);
if ((referenced & PIPE_REFERENCED_FOR_WRITE) ||
((referenced & PIPE_REFERENCED_FOR_READ) && !read_only)) {
if (cpu_access) {
/*
* Flush and wait.
*/
struct pipe_fence_handle *fence = NULL;
if (do_not_block)
return FALSE;
/*
* Do the unswizzling in parallel.
*
* XXX: Don't abuse the PIPE_FLUSH_FRAME flag for this.
*/
flush_flags |= PIPE_FLUSH_FRAME;
llvmpipe_flush(pipe, flush_flags, &fence);
if (fence) {
pipe->screen->fence_finish(pipe->screen, fence, 0);
pipe->screen->fence_reference(pipe->screen, &fence, NULL);
}
} else {
/*
* Just flush.
*/
llvmpipe_flush(pipe, flush_flags, NULL);
}
}
return TRUE;
}
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