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/**************************************************************************
*
* Copyright 2003 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.
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
* Brian Paul
*/
#include "st_context.h"
#include "glheader.h"
#include "macros.h"
#include "enums.h"
#include "st_context.h"
#include "st_atom.h"
#include "pipe/p_context.h"
/* XXX: doesn't pick up the differences between front/back/left/right
* clears. Need to sort that out...
*/
static void st_clear(GLcontext *ctx, GLbitfield mask)
{
struct st_context *st = ctx->st;
GLboolean color = (mask & BUFFER_BITS_COLOR) ? GL_TRUE : GL_FALSE;
GLboolean depth = (mask & BUFFER_BIT_DEPTH) ? GL_TRUE : GL_FALSE;
GLboolean stencil = (mask & BUFFER_BIT_STENCIL) ? GL_TRUE : GL_FALSE;
GLboolean accum = (mask & BUFFER_BIT_ACCUM) ? GL_TRUE : GL_FALSE;
GLboolean fullscreen = 1; /* :-) */
/* This makes sure the softpipe has the latest scissor, etc values */
st_validate_state( st );
if (fullscreen) {
/* pipe->clear() should clear a particular surface, so that we
* can iterate over render buffers at this level and clear the
* ones GL is asking for.
*
* Will probably need something like pipe->clear_z_stencil() to
* cope with the special case of paired and unpaired z/stencil
* buffers, though could perhaps deal with them explicitly at
* this level.
*/
st->pipe->clear(st->pipe, color, depth, stencil, accum);
}
else {
/* Convert to geometry, etc:
*/
}
}
void st_init_cb_clear( struct st_context *st )
{
struct dd_function_table *functions = &st->ctx->Driver;
functions->Clear = st_clear;
}
void st_destroy_cb_clear( struct st_context *st )
{
}
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