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/* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_span.c,v 1.2 2002/02/22 21:32:59 dawes Exp $
*
* GLX Hardware Device Driver for Sun Creator/Creator3D
* Copyright (C) 2000 David S. Miller
*
* 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
* DAVID MILLER, OR ANY OTHER CONTRIBUTORS 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.
*
*
* David S. Miller <davem@redhat.com>
*/
#include "mtypes.h"
#include "ffb_dd.h"
#include "ffb_span.h"
#include "ffb_context.h"
#include "ffb_lock.h"
#include "swrast/swrast.h"
#define DBG 0
#define HW_LOCK() \
ffbContextPtr fmesa = FFB_CONTEXT(ctx); \
if (!fmesa->hw_locked) \
LOCK_HARDWARE(fmesa);
#define HW_UNLOCK() \
if (!fmesa->hw_locked) \
UNLOCK_HARDWARE(fmesa); \
#define LOCAL_VARS \
__DRIdrawablePrivate *dPriv = fmesa->driDrawable; \
GLuint height = dPriv->h; \
GLuint p; \
char *buf; \
(void) p
#define INIT_MONO_PIXEL(p, color) \
p = ((color[0] << 0) | \
(color[1] << 8) | \
(color[2] << 16))
/* We use WID clipping, so this test always passes. */
#define CLIPPIXEL(__x, __y) (1)
/* And also, due to WID clipping, we need not do anything
* special here.
*/
#define CLIPSPAN(__x,__y,__n,__x1,__n1,__i) \
__n1 = __n; \
__x1 = __x; \
#define HW_CLIPLOOP() \
do { unsigned int fbc, ppc, cmp; \
FFBWait(fmesa, fmesa->regs); \
fbc = fmesa->regs->fbc; ppc = fmesa->regs->ppc; cmp = fmesa->regs->cmp; \
fmesa->regs->fbc = ((fbc & \
~(FFB_FBC_WB_C | FFB_FBC_ZE_MASK | FFB_FBC_RGBE_MASK)) \
| (FFB_FBC_ZE_OFF | FFB_FBC_RGBE_MASK)); \
fmesa->regs->ppc = ((ppc & \
~(FFB_PPC_XS_MASK | FFB_PPC_ABE_MASK | FFB_PPC_DCE_MASK | \
FFB_PPC_APE_MASK | FFB_PPC_CS_MASK)) \
| (FFB_PPC_XS_WID | FFB_PPC_ABE_DISABLE | \
FFB_PPC_DCE_DISABLE | FFB_PPC_APE_DISABLE | \
FFB_PPC_CS_VAR)); \
fmesa->regs->cmp = ((cmp & ~(0xff << 16)) | (0x80 << 16)); \
fmesa->ffbScreen->rp_active = 1; \
FFBWait(fmesa, fmesa->regs); \
buf = (char *)(fmesa->sfb32 + (dPriv->x << 2) + (dPriv->y << 13));\
if (dPriv->numClipRects) {
#define HW_ENDCLIPLOOP() \
} \
fmesa->regs->fbc = fbc; \
fmesa->regs->ppc = ppc; \
fmesa->regs->cmp = cmp; \
fmesa->ffbScreen->rp_active = 1; \
} while(0)
#define Y_FLIP(__y) (height - __y)
#define READ_RGBA(rgba,__x,__y) \
do { GLuint p = *(GLuint *)(buf + ((__x)<<2) + ((__y)<<13)); \
rgba[0] = (p >> 0) & 0xff; \
rgba[1] = (p >> 8) & 0xff; \
rgba[2] = (p >> 16) & 0xff; \
rgba[3] = 0xff; \
} while(0)
#define WRITE_RGBA(__x, __y, __r, __g, __b, __a) \
*(GLuint *)(buf + ((__x)<<2) + ((__y)<<13)) = \
((((__r) & 0xff) << 0) | \
(((__g) & 0xff) << 8) | \
(((__b) & 0xff) << 16))
#define WRITE_PIXEL(__x, __y, __p) \
*(GLuint *)(buf + ((__x)<<2) + ((__y)<<13)) = (__p)
#define TAG(x) ffb##x##_888
#include <spantmp.h>
/**
* Plug in the Get/Put routines for the given driRenderbuffer.
*/
void
ffbSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
{
assert(vis->redBits == 8);
assert(vis->greenBits == 8);
assert(vis->blueBits == 8);
drb->Base.GetRow = ffbReadRGBASpan_888;
drb->Base.GetValues = ffbReadRGBAPixels_888;
drb->Base.PutRow = ffbWriteRGBASpan_888;
drb->Base.PutRowRGB = ffbWriteRGBSpan_888;
drb->Base.PutMonoRow = ffbWriteMonoRGBASpan_888;
drb->Base.PutValues = ffbWriteRGBAPixels_888;
drb->Base.PutMonoValues = ffbWriteMonoRGBAPixels_888;
}
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