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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 "lp_clear.h"
#include "lp_context.h"
#include "lp_surface.h"
#include "lp_state.h"
#include "lp_tile_cache.h"
/**
* Clear the given buffers to the specified values.
* No masking, no scissor (clear entire buffer).
*/
void
llvmpipe_clear(struct pipe_context *pipe, unsigned buffers, const float *rgba,
double depth, unsigned stencil)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
unsigned cv;
uint i;
if (llvmpipe->no_rast)
return;
#if 0
llvmpipe_update_derived(llvmpipe); /* not needed?? */
#endif
if (buffers & PIPE_CLEAR_COLOR) {
for (i = 0; i < llvmpipe->framebuffer.nr_cbufs; i++) {
struct pipe_surface *ps = llvmpipe->framebuffer.cbufs[i];
util_pack_color(rgba, ps->format, &cv);
lp_tile_cache_clear(llvmpipe->cbuf_cache[i], rgba, cv);
#if !TILE_CLEAR_OPTIMIZATION
/* non-cached surface */
pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, cv);
#endif
}
}
if (buffers & PIPE_CLEAR_DEPTHSTENCIL) {
static const float zero[4] = { 0.0F, 0.0F, 0.0F, 0.0F };
struct pipe_surface *ps = llvmpipe->framebuffer.zsbuf;
cv = util_pack_z_stencil(ps->format, depth, stencil);
/* non-cached surface */
pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, cv);
}
}
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