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IABSD.fr/xenocara/xserver/fb/fbimage.c
matthieu
- xserver/fb/fbimage.c
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/* * Copyright © 1998 Keith Packard * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Keith Packard not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Keith Packard makes no * representations about the suitability of this software for any purpose. It * is provided "as is" without express or implied warranty. * * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <string.h> #include "fb.h" void fbPutImage(DrawablePtr pDrawable, GCPtr pGC, int depth, int x, int y, int w, int h, int leftPad, int format, char *pImage) { FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); unsigned long i; FbStride srcStride; FbStip *src = (FbStip *) pImage; x += pDrawable->x; y += pDrawable->y; switch (format) { case XYBitmap: srcStride = BitmapBytePad(w + leftPad) / sizeof(FbStip); fbPutXYImage(pDrawable, fbGetCompositeClip(pGC), pPriv->fg, pPriv->bg, pPriv->pm, pGC->alu, TRUE, x, y, w, h, src, srcStride, leftPad); break; case XYPixmap: srcStride = BitmapBytePad(w + leftPad) / sizeof(FbStip); for (i = (unsigned long) 1 << (pDrawable->depth - 1); i; i >>= 1) { if (i & pGC->planemask) { fbPutXYImage(pDrawable, fbGetCompositeClip(pGC), FB_ALLONES, 0, fbReplicatePixel(i, pDrawable->bitsPerPixel), pGC->alu, TRUE, x, y, w, h, src, srcStride, leftPad); } src += srcStride * h; } break; case ZPixmap: srcStride = PixmapBytePad(w, pDrawable->depth) / sizeof(FbStip); fbPutZImage(pDrawable, fbGetCompositeClip(pGC), pGC->alu, pPriv->pm, x, y, w, h, src, srcStride); } } void fbPutZImage(DrawablePtr pDrawable, RegionPtr pClip, int alu, FbBits pm, int x, int y, int width, int height, FbStip * src, FbStride srcStride) { FbStip *dst; FbStride dstStride; int dstBpp; int dstXoff, dstYoff; int nbox; BoxPtr pbox; int x1, y1, x2, y2; fbGetStipDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); for (nbox = RegionNumRects(pClip), pbox = RegionRects(pClip); nbox--; pbox++) { x1 = x; y1 = y; x2 = x + width; y2 = y + height; if (x1 < pbox->x1) x1 = pbox->x1; if (y1 < pbox->y1) y1 = pbox->y1; if (x2 > pbox->x2) x2 = pbox->x2; if (y2 > pbox->y2) y2 = pbox->y2; if (x1 >= x2 || y1 >= y2) continue; fbBltStip(src + (y1 - y) * srcStride, srcStride, (x1 - x) * dstBpp, dst + (y1 + dstYoff) * dstStride, dstStride, (x1 + dstXoff) * dstBpp, (x2 - x1) * dstBpp, (y2 - y1), alu, pm, dstBpp); } fbFinishAccess(pDrawable); } void fbPutXYImage(DrawablePtr pDrawable, RegionPtr pClip, FbBits fg, FbBits bg, FbBits pm, int alu, Bool opaque, int x, int y, int width, int height, FbStip * src, FbStride srcStride, int srcX) { FbBits *dst; FbStride dstStride; int dstBpp; int dstXoff, dstYoff; int nbox; BoxPtr pbox; int x1, y1, x2, y2; FbBits fgand = 0, fgxor = 0, bgand = 0, bgxor = 0; fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); if (dstBpp == 1) { if (opaque) alu = FbOpaqueStipple1Rop(alu, fg, bg); else alu = FbStipple1Rop(alu, fg); } else { fgand = fbAnd(alu, fg, pm); fgxor = fbXor(alu, fg, pm); if (opaque) { bgand = fbAnd(alu, bg, pm); bgxor = fbXor(alu, bg, pm); } else { bgand = fbAnd(GXnoop, (FbBits) 0, FB_ALLONES); bgxor = fbXor(GXnoop, (FbBits) 0, FB_ALLONES); } } for (nbox = RegionNumRects(pClip), pbox = RegionRects(pClip); nbox--; pbox++) { x1 = x; y1 = y; x2 = x + width; y2 = y + height; if (x1 < pbox->x1) x1 = pbox->x1; if (y1 < pbox->y1) y1 = pbox->y1; if (x2 > pbox->x2) x2 = pbox->x2; if (y2 > pbox->y2) y2 = pbox->y2; if (x1 >= x2 || y1 >= y2) continue; if (dstBpp == 1) { fbBltStip(src + (y1 - y) * srcStride, srcStride, (x1 - x) + srcX, (FbStip *) (dst + (y1 + dstYoff) * dstStride), FbBitsStrideToStipStride(dstStride), (x1 + dstXoff) * dstBpp, (x2 - x1) * dstBpp, (y2 - y1), alu, pm, dstBpp); } else { fbBltOne(src + (y1 - y) * srcStride, srcStride, (x1 - x) + srcX, dst + (y1 + dstYoff) * dstStride, dstStride, (x1 + dstXoff) * dstBpp, dstBpp, (x2 - x1) * dstBpp, (y2 - y1), fgand, fgxor, bgand, bgxor); } } fbFinishAccess(pDrawable); } void fbGetImage(DrawablePtr pDrawable, int x, int y, int w, int h, unsigned int format, unsigned long planeMask, char *d) { FbBits *src; FbStride srcStride; int srcBpp; int srcXoff, srcYoff; FbStip *dst; FbStride dstStride; /* * XFree86 DDX empties the root borderClip when the VT is * switched away; this checks for that case */ if (!fbDrawableEnabled(pDrawable)) return; fbGetDrawable(pDrawable, src, srcStride, srcBpp, srcXoff, srcYoff); x += pDrawable->x; y += pDrawable->y; dst = (FbStip *) d; if (format == ZPixmap || srcBpp == 1) { FbBits pm; pm = fbReplicatePixel(planeMask, srcBpp); dstStride = PixmapBytePad(w, pDrawable->depth); dstStride /= sizeof(FbStip); fbBltStip((FbStip *) (src + (y + srcYoff) * srcStride), FbBitsStrideToStipStride(srcStride), (x + srcXoff) * srcBpp, dst, dstStride, 0, w * srcBpp, h, GXcopy, FB_ALLONES, srcBpp); if (pm != FB_ALLONES) { for (int i = 0; i < dstStride * h; i++) dst[i] &= pm; } } else { dstStride = BitmapBytePad(w) / sizeof(FbStip); fbBltPlane(src + (y + srcYoff) * srcStride, srcStride, (x + srcXoff) * srcBpp, srcBpp, dst, dstStride, 0, w * srcBpp, h, fbAndStip(GXcopy, FB_STIP_ALLONES, FB_STIP_ALLONES), fbXorStip(GXcopy, FB_STIP_ALLONES, FB_STIP_ALLONES), fbAndStip(GXcopy, 0, FB_STIP_ALLONES), fbXorStip(GXcopy, 0, FB_STIP_ALLONES), planeMask); } fbFinishAccess(pDrawable); }