1/*
2 *
3 * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
4 *
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of Keith Packard not be used in
10 * advertising or publicity pertaining to distribution of the software without
11 * specific, written prior permission.  Keith Packard makes no
12 * representations about the suitability of this software for any purpose.  It
13 * is provided "as is" without express or implied warranty.
14 *
15 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
16 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
17 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
18 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
19 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
20 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
21 * PERFORMANCE OF THIS SOFTWARE.
22 */
23
24#ifdef HAVE_DIX_CONFIG_H
25#include <dix-config.h>
26#endif
27
28#include "scrnintstr.h"
29#include "gcstruct.h"
30#include "pixmapstr.h"
31#include "windowstr.h"
32#include "mi.h"
33#include "picturestr.h"
34#include "mipict.h"
35
36static void
37miColorRects(PicturePtr pDst,
38             PicturePtr pClipPict,
39             xRenderColor * color,
40             int nRect, xRectangle *rects, int xoff, int yoff)
41{
42    CARD32 pixel;
43    GCPtr pGC;
44    ChangeGCVal tmpval[5];
45    RegionPtr pClip;
46    unsigned long mask;
47
48    miRenderColorToPixel(pDst->pFormat, color, &pixel);
49
50    pGC = GetScratchGC(pDst->pDrawable->depth, pDst->pDrawable->pScreen);
51    if (!pGC)
52        return;
53    tmpval[0].val = GXcopy;
54    tmpval[1].val = pixel;
55    tmpval[2].val = pDst->subWindowMode;
56    mask = GCFunction | GCForeground | GCSubwindowMode;
57    if (pClipPict->clientClip) {
58        tmpval[3].val = pDst->clipOrigin.x - xoff;
59        tmpval[4].val = pDst->clipOrigin.y - yoff;
60        mask |= GCClipXOrigin | GCClipYOrigin;
61
62        pClip = RegionCreate(NULL, 1);
63        RegionCopy(pClip, (RegionPtr) pClipPict->clientClip);
64        (*pGC->funcs->ChangeClip) (pGC, CT_REGION, pClip, 0);
65    }
66
67    ChangeGC(NullClient, pGC, mask, tmpval);
68    ValidateGC(pDst->pDrawable, pGC);
69    if (xoff || yoff) {
70        int i;
71
72        for (i = 0; i < nRect; i++) {
73            rects[i].x -= xoff;
74            rects[i].y -= yoff;
75        }
76    }
77    (*pGC->ops->PolyFillRect) (pDst->pDrawable, pGC, nRect, rects);
78    if (xoff || yoff) {
79        int i;
80
81        for (i = 0; i < nRect; i++) {
82            rects[i].x += xoff;
83            rects[i].y += yoff;
84        }
85    }
86    FreeScratchGC(pGC);
87}
88
89void
90miCompositeRects(CARD8 op,
91                 PicturePtr pDst,
92                 xRenderColor * color, int nRect, xRectangle *rects)
93{
94    if (color->alpha == 0xffff) {
95        if (op == PictOpOver)
96            op = PictOpSrc;
97    }
98    if (op == PictOpClear)
99        color->red = color->green = color->blue = color->alpha = 0;
100
101    if (op == PictOpSrc || op == PictOpClear) {
102        miColorRects(pDst, pDst, color, nRect, rects, 0, 0);
103        if (pDst->alphaMap)
104            miColorRects(pDst->alphaMap, pDst,
105                         color, nRect, rects,
106                         pDst->alphaOrigin.x, pDst->alphaOrigin.y);
107    }
108    else {
109        int error;
110        PicturePtr pSrc = CreateSolidPicture(0, color, &error);
111
112        if (pSrc) {
113            while (nRect--) {
114                CompositePicture(op, pSrc, 0, pDst, 0, 0, 0, 0,
115                                 rects->x, rects->y,
116                                 rects->width, rects->height);
117                rects++;
118            }
119
120            FreePicture((void *) pSrc, 0);
121        }
122    }
123}
124