472 lines
11 KiB
C
472 lines
11 KiB
C
/*
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*
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* Copyright © 2000 SuSE, Inc.
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* Copyright © 2007 Red Hat, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of SuSE not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. SuSE makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
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* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Keith Packard, SuSE, Inc.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <string.h>
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#include "fb.h"
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#ifdef RENDER
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#include "picturestr.h"
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#include "mipict.h"
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#include "fbpict.h"
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#define mod(a,b) ((b) == 1 ? 0 : (a) >= 0 ? (a) % (b) : (b) - (-a) % (b))
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void
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fbWalkCompositeRegion (CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst,
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CARD16 width,
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CARD16 height,
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Bool srcRepeat,
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Bool maskRepeat,
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CompositeFunc compositeRect)
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{
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RegionRec region;
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int n;
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BoxPtr pbox;
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int w, h, w_this, h_this;
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int x_msk, y_msk, x_src, y_src, x_dst, y_dst;
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xDst += pDst->pDrawable->x;
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yDst += pDst->pDrawable->y;
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if (pSrc->pDrawable)
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{
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xSrc += pSrc->pDrawable->x;
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ySrc += pSrc->pDrawable->y;
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}
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if (pMask && pMask->pDrawable)
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{
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xMask += pMask->pDrawable->x;
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yMask += pMask->pDrawable->y;
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}
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if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, xSrc, ySrc,
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xMask, yMask, xDst, yDst, width, height))
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return;
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n = REGION_NUM_RECTS (®ion);
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pbox = REGION_RECTS (®ion);
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while (n--)
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{
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h = pbox->y2 - pbox->y1;
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y_src = pbox->y1 - yDst + ySrc;
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y_msk = pbox->y1 - yDst + yMask;
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y_dst = pbox->y1;
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while (h)
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{
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h_this = h;
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w = pbox->x2 - pbox->x1;
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x_src = pbox->x1 - xDst + xSrc;
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x_msk = pbox->x1 - xDst + xMask;
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x_dst = pbox->x1;
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if (maskRepeat)
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{
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y_msk = mod (y_msk - pMask->pDrawable->y, pMask->pDrawable->height);
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if (h_this > pMask->pDrawable->height - y_msk)
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h_this = pMask->pDrawable->height - y_msk;
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y_msk += pMask->pDrawable->y;
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}
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if (srcRepeat)
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{
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y_src = mod (y_src - pSrc->pDrawable->y, pSrc->pDrawable->height);
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if (h_this > pSrc->pDrawable->height - y_src)
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h_this = pSrc->pDrawable->height - y_src;
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y_src += pSrc->pDrawable->y;
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}
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while (w)
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{
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w_this = w;
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if (maskRepeat)
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{
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x_msk = mod (x_msk - pMask->pDrawable->x, pMask->pDrawable->width);
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if (w_this > pMask->pDrawable->width - x_msk)
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w_this = pMask->pDrawable->width - x_msk;
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x_msk += pMask->pDrawable->x;
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}
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if (srcRepeat)
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{
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x_src = mod (x_src - pSrc->pDrawable->x, pSrc->pDrawable->width);
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if (w_this > pSrc->pDrawable->width - x_src)
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w_this = pSrc->pDrawable->width - x_src;
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x_src += pSrc->pDrawable->x;
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}
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(*compositeRect) (op, pSrc, pMask, pDst,
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x_src, y_src, x_msk, y_msk, x_dst, y_dst,
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w_this, h_this);
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w -= w_this;
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x_src += w_this;
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x_msk += w_this;
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x_dst += w_this;
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}
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h -= h_this;
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y_src += h_this;
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y_msk += h_this;
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y_dst += h_this;
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}
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pbox++;
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}
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REGION_UNINIT (pDst->pDrawable->pScreen, ®ion);
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}
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void
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fbComposite (CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst,
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CARD16 width,
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CARD16 height)
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{
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pixman_image_t *src, *mask, *dest;
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xDst += pDst->pDrawable->x;
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yDst += pDst->pDrawable->y;
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if (pSrc->pDrawable)
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{
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xSrc += pSrc->pDrawable->x;
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ySrc += pSrc->pDrawable->y;
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}
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if (pMask && pMask->pDrawable)
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{
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xMask += pMask->pDrawable->x;
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yMask += pMask->pDrawable->y;
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}
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miCompositeSourceValidate (pSrc, xSrc, ySrc, width, height);
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if (pMask)
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miCompositeSourceValidate (pMask, xMask, yMask, width, height);
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src = image_from_pict (pSrc, TRUE);
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mask = image_from_pict (pMask, TRUE);
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dest = image_from_pict (pDst, TRUE);
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if (src && dest && !(pMask && !mask))
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{
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pixman_image_composite (op, src, mask, dest,
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xSrc, ySrc, xMask, yMask, xDst, yDst,
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width, height);
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}
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free_pixman_pict (pSrc, src);
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free_pixman_pict (pMask, mask);
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free_pixman_pict (pDst, dest);
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}
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void
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fbCompositeGeneral (CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst,
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CARD16 width,
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CARD16 height)
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{
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fbComposite (op, pSrc, pMask, pDst,
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xSrc, ySrc, xMask, yMask, xDst, yDst,
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width, height);
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}
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#endif /* RENDER */
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static pixman_image_t *
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create_solid_fill_image (PicturePtr pict)
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{
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PictSolidFill *solid = &pict->pSourcePict->solidFill;
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pixman_color_t color;
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CARD32 a, r, g, b;
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a = (solid->color & 0xff000000) >> 24;
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r = (solid->color & 0x00ff0000) >> 16;
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g = (solid->color & 0x0000ff00) >> 8;
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b = (solid->color & 0x000000ff) >> 0;
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color.alpha = (a << 8) | a;
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color.red = (r << 8) | r;
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color.green = (g << 8) | g;
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color.blue = (b << 8) | b;
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return pixman_image_create_solid_fill (&color);
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}
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static pixman_image_t *
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create_linear_gradient_image (PictGradient *gradient)
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{
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PictLinearGradient *linear = (PictLinearGradient *)gradient;
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pixman_point_fixed_t p1;
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pixman_point_fixed_t p2;
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p1.x = linear->p1.x;
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p1.y = linear->p1.y;
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p2.x = linear->p2.x;
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p2.y = linear->p2.y;
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return pixman_image_create_linear_gradient (
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&p1, &p2, (pixman_gradient_stop_t *)gradient->stops, gradient->nstops);
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}
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static pixman_image_t *
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create_radial_gradient_image (PictGradient *gradient)
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{
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PictRadialGradient *radial = (PictRadialGradient *)gradient;
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pixman_point_fixed_t c1;
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pixman_point_fixed_t c2;
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c1.x = radial->c1.x;
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c1.y = radial->c1.y;
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c2.x = radial->c2.x;
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c2.y = radial->c2.y;
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return pixman_image_create_radial_gradient (
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&c1, &c2, radial->c1.radius,
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radial->c2.radius,
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(pixman_gradient_stop_t *)gradient->stops, gradient->nstops);
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}
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static pixman_image_t *
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create_conical_gradient_image (PictGradient *gradient)
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{
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PictConicalGradient *conical = (PictConicalGradient *)gradient;
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pixman_point_fixed_t center;
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center.x = conical->center.x;
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center.y = conical->center.y;
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return pixman_image_create_conical_gradient (
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¢er, conical->angle, (pixman_gradient_stop_t *)gradient->stops,
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gradient->nstops);
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}
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static pixman_image_t *
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create_bits_picture (PicturePtr pict,
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Bool has_clip)
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{
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FbBits *bits;
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FbStride stride;
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int bpp, xoff, yoff;
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pixman_image_t *image;
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fbGetDrawable (pict->pDrawable, bits, stride, bpp, xoff, yoff);
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bits = (FbBits*)((CARD8*)bits + yoff * stride * sizeof(FbBits) + xoff * (bpp / 8));
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image = pixman_image_create_bits (
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pict->format,
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pict->pDrawable->width, pict->pDrawable->height,
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(uint32_t *)bits, stride * sizeof (FbStride));
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#ifdef FB_ACCESS_WRAPPER
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#if FB_SHIFT==5
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pixman_image_set_accessors (image,
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(pixman_read_memory_func_t)wfbReadMemory,
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(pixman_write_memory_func_t)wfbWriteMemory);
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#else
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#error The pixman library only works when FbBits is 32 bits wide
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#endif
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#endif
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/* pCompositeClip is undefined for source pictures, so
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* only set the clip region for pictures with drawables
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*/
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if (has_clip)
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{
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if (pict->clientClipType != CT_NONE)
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pixman_image_set_has_client_clip (image, TRUE);
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pixman_image_set_clip_region (image, pict->pCompositeClip);
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}
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/* Indexed table */
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if (pict->pFormat->index.devPrivate)
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pixman_image_set_indexed (image, pict->pFormat->index.devPrivate);
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return image;
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}
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static void
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set_image_properties (pixman_image_t *image, PicturePtr pict)
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{
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pixman_repeat_t repeat;
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pixman_filter_t filter;
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if (pict->transform)
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{
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pixman_image_set_transform (
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image, (pixman_transform_t *)pict->transform);
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}
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switch (pict->repeatType)
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{
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default:
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case RepeatNone:
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repeat = PIXMAN_REPEAT_NONE;
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break;
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case RepeatPad:
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repeat = PIXMAN_REPEAT_PAD;
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break;
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case RepeatNormal:
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repeat = PIXMAN_REPEAT_NORMAL;
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break;
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case RepeatReflect:
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repeat = PIXMAN_REPEAT_REFLECT;
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break;
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}
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pixman_image_set_repeat (image, repeat);
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if (pict->alphaMap)
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{
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pixman_image_t *alpha_map = image_from_pict (pict->alphaMap, TRUE);
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pixman_image_set_alpha_map (
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image, alpha_map, pict->alphaOrigin.x, pict->alphaOrigin.y);
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free_pixman_pict (pict->alphaMap, alpha_map);
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}
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pixman_image_set_component_alpha (image, pict->componentAlpha);
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switch (pict->filter)
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{
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default:
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case PictFilterNearest:
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case PictFilterFast:
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filter = PIXMAN_FILTER_NEAREST;
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break;
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case PictFilterBilinear:
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case PictFilterGood:
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filter = PIXMAN_FILTER_BILINEAR;
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break;
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case PictFilterConvolution:
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filter = PIXMAN_FILTER_CONVOLUTION;
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break;
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}
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pixman_image_set_filter (image, filter, (pixman_fixed_t *)pict->filter_params, pict->filter_nparams);
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pixman_image_set_source_clipping (image, TRUE);
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}
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pixman_image_t *
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image_from_pict (PicturePtr pict,
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Bool has_clip)
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{
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pixman_image_t *image = NULL;
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if (!pict)
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return NULL;
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if (pict->pDrawable)
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{
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image = create_bits_picture (pict, has_clip);
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}
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else if (pict->pSourcePict)
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{
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SourcePict *sp = pict->pSourcePict;
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if (sp->type == SourcePictTypeSolidFill)
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{
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image = create_solid_fill_image (pict);
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}
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else
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{
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PictGradient *gradient = &pict->pSourcePict->gradient;
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if (sp->type == SourcePictTypeLinear)
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image = create_linear_gradient_image (gradient);
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else if (sp->type == SourcePictTypeRadial)
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image = create_radial_gradient_image (gradient);
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else if (sp->type == SourcePictTypeConical)
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image = create_conical_gradient_image (gradient);
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}
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}
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if (image)
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set_image_properties (image, pict);
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return image;
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}
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void
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free_pixman_pict (PicturePtr pict, pixman_image_t *image)
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{
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if (image && pixman_image_unref (image) && pict->pDrawable)
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fbFinishAccess (pict->pDrawable);
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}
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Bool
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fbPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
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{
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#ifdef RENDER
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PictureScreenPtr ps;
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if (!miPictureInit (pScreen, formats, nformats))
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return FALSE;
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ps = GetPictureScreen(pScreen);
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ps->Composite = fbComposite;
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ps->Glyphs = miGlyphs;
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ps->CompositeRects = miCompositeRects;
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ps->RasterizeTrapezoid = fbRasterizeTrapezoid;
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ps->AddTraps = fbAddTraps;
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ps->AddTriangles = fbAddTriangles;
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#endif /* RENDER */
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return TRUE;
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}
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