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/*
* Mesa 3-D graphics library
* Version: 7.1
*
* Copyright (C) 1999-2007 Brian Paul 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL 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.
*/
/**
* \file xm_surface.c
* Code to allow the softpipe code to write to X windows/buffers.
* This is a bit of a hack for now. We've basically got two different
* abstractions for color buffers: gl_renderbuffer and pipe_surface.
* They'll need to get merged someday...
* For now, they're separate things that point to each other.
*/
#include "GL/xmesa.h"
#include "glxheader.h"
#include "xmesaP.h"
#include "main/context.h"
#include "main/imports.h"
#include "main/macros.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_winsys.h"
#include "pipe/softpipe/sp_context.h"
#include "pipe/softpipe/sp_clear.h"
#include "pipe/softpipe/sp_tile_cache.h"
#include "pipe/softpipe/sp_surface.h"
#include "state_tracker/st_context.h"
/*
* Dithering kernels and lookup tables.
*/
const int xmesa_kernel8[DITH_DY * DITH_DX] = {
0 * MAXC, 8 * MAXC, 2 * MAXC, 10 * MAXC,
12 * MAXC, 4 * MAXC, 14 * MAXC, 6 * MAXC,
3 * MAXC, 11 * MAXC, 1 * MAXC, 9 * MAXC,
15 * MAXC, 7 * MAXC, 13 * MAXC, 5 * MAXC,
};
const int xmesa_kernel1[16] = {
0*47, 9*47, 4*47, 12*47, /* 47 = (255*3)/16 */
6*47, 2*47, 14*47, 8*47,
10*47, 1*47, 5*47, 11*47,
7*47, 13*47, 3*47, 15*47
};
/** XXX unfinished sketch... */
struct pipe_surface *
xmesa_create_front_surface(XMesaVisual vis, Window win)
{
struct xmesa_surface *xms = CALLOC_STRUCT(xmesa_surface);
if (!xms) {
return NULL;
}
xms->display = vis->display;
xms->drawable = win;
xms->surface.format = PIPE_FORMAT_U_A8_R8_G8_B8;
xms->surface.refcount = 1;
#if 0
xms->surface.region = pipe->winsys->region_alloc(pipe->winsys,
1, 0, 0, 0x0);
#endif
return &xms->surface;
}
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