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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
* Copyright 2009 VMware, Inc. 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:
* Brian Paul
* Michel Dänzer
*/
#include "pipe/p_defines.h"
#include "util/u_pack_color.h"
#include "util/u_surface.h"
#include "sp_clear.h"
#include "sp_context.h"
#include "sp_query.h"
#include "sp_tile_cache.h"
/**
* Clear the given buffers to the specified values.
* No masking, no scissor (clear entire buffer).
*/
void
softpipe_clear(struct pipe_context *pipe, unsigned buffers,
const union pipe_color_union *color,
double depth, unsigned stencil)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
struct pipe_surface *zsbuf = softpipe->framebuffer.zsbuf;
unsigned zs_buffers = buffers & PIPE_CLEAR_DEPTHSTENCIL;
uint64_t cv;
uint i;
if (softpipe->no_rast)
return;
if (!softpipe_check_render_cond(softpipe))
return;
#if 0
softpipe_update_derived(softpipe, PIPE_PRIM_TRIANGLES); /* not needed?? */
#endif
if (buffers & PIPE_CLEAR_COLOR) {
for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
sp_tile_cache_clear(softpipe->cbuf_cache[i], color, 0);
}
}
if (zs_buffers &&
util_format_is_depth_and_stencil(zsbuf->texture->format) &&
zs_buffers != PIPE_CLEAR_DEPTHSTENCIL) {
/* Clearing only depth or stencil in a combined depth-stencil buffer. */
util_clear_depth_stencil(pipe, zsbuf, zs_buffers, depth, stencil,
0, 0, zsbuf->width, zsbuf->height);
}
else if (zs_buffers) {
static const union pipe_color_union zero;
cv = util_pack64_z_stencil(zsbuf->format, depth, stencil);
sp_tile_cache_clear(softpipe->zsbuf_cache, &zero, cv);
}
softpipe->dirty_render_cache = TRUE;
}
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