| /* $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 - 1) |
| |
| #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); |
| ffbInitPointers_888(&drb->Base); |
| } |