diff options
Diffstat (limited to 'src/mesa/drivers/dri/ffb/ffb_span.c')
| -rw-r--r-- | src/mesa/drivers/dri/ffb/ffb_span.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/ffb/ffb_span.c b/src/mesa/drivers/dri/ffb/ffb_span.c new file mode 100644 index 00000000000..6927945226b --- /dev/null +++ b/src/mesa/drivers/dri/ffb/ffb_span.c @@ -0,0 +1,142 @@ +/* $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 <[email protected]> + */ + +#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> + +void ffbDDInitSpanFuncs(GLcontext *ctx) +{ + struct swrast_device_driver *swdd = + _swrast_GetDeviceDriverReference(ctx); + + swdd->WriteRGBASpan = ffbWriteRGBASpan_888; + swdd->WriteRGBSpan = ffbWriteRGBSpan_888; + swdd->WriteRGBAPixels = ffbWriteRGBAPixels_888; + swdd->WriteMonoRGBASpan = ffbWriteMonoRGBASpan_888; + swdd->WriteMonoRGBAPixels = ffbWriteMonoRGBAPixels_888; + swdd->ReadRGBASpan = ffbReadRGBASpan_888; + swdd->ReadRGBAPixels = ffbReadRGBAPixels_888; + + /* We don't support color index mode yet, but it will be + * very easy to do. -DaveM + */ + swdd->WriteCI8Span = NULL; + swdd->WriteCI32Span = NULL; + swdd->WriteMonoCISpan = NULL; + swdd->WriteCI32Pixels = NULL; + swdd->WriteMonoCIPixels = NULL; + swdd->ReadCI32Span = NULL; + swdd->ReadCI32Pixels = NULL; +} |