| 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 | |
| 36 | static void |
| 37 | miColorRects(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->clientClipType == CT_REGION) { |
| 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 | |
| 89 | void |
| 90 | miCompositeRects(CARD8 op, |
| 91 | PicturePtr pDst, |
| 92 | xRenderColor * color, int nRect, xRectangle *rects) |
| 93 | { |
| 94 | ScreenPtr pScreen = pDst->pDrawable->pScreen; |
| 95 | |
| 96 | if (color->alpha == 0xffff) { |
| 97 | if (op == PictOpOver) |
| 98 | op = PictOpSrc; |
| 99 | } |
| 100 | if (op == PictOpClear) |
| 101 | color->red = color->green = color->blue = color->alpha = 0; |
| 102 | |
| 103 | if (op == PictOpSrc || op == PictOpClear) { |
| 104 | miColorRects(pDst, pDst, color, nRect, rects, 0, 0); |
| 105 | if (pDst->alphaMap) |
| 106 | miColorRects(pDst->alphaMap, pDst, |
| 107 | color, nRect, rects, |
| 108 | pDst->alphaOrigin.x, pDst->alphaOrigin.y); |
| 109 | } |
| 110 | else { |
| 111 | PictFormatPtr rgbaFormat; |
| 112 | PixmapPtr pPixmap; |
| 113 | PicturePtr pSrc; |
| 114 | xRectangle one; |
| 115 | int error; |
| 116 | Pixel pixel; |
| 117 | GCPtr pGC; |
| 118 | ChangeGCVal gcvals[2]; |
| 119 | XID tmpval[1]; |
| 120 | |
| 121 | rgbaFormat = PictureMatchFormat(pScreen, 32, PICT_a8r8g8b8); |
| 122 | if (!rgbaFormat) |
| 123 | goto bail1; |
| 124 | |
| 125 | pPixmap = (*pScreen->CreatePixmap) (pScreen, 1, 1, rgbaFormat->depth, |
| 126 | CREATE_PIXMAP_USAGE_SCRATCH); |
| 127 | if (!pPixmap) |
| 128 | goto bail2; |
| 129 | |
| 130 | miRenderColorToPixel(rgbaFormat, color, &pixel); |
| 131 | |
| 132 | pGC = GetScratchGC(rgbaFormat->depth, pScreen); |
| 133 | if (!pGC) |
| 134 | goto bail3; |
| 135 | gcvals[0].val = GXcopy; |
| 136 | gcvals[1].val = pixel; |
| 137 | |
| 138 | ChangeGC(NullClient, pGC, GCFunction | GCForeground, gcvals); |
| 139 | ValidateGC(&pPixmap->drawable, pGC); |
| 140 | one.x = 0; |
| 141 | one.y = 0; |
| 142 | one.width = 1; |
| 143 | one.height = 1; |
| 144 | (*pGC->ops->PolyFillRect) (&pPixmap->drawable, pGC, 1, &one); |
| 145 | |
| 146 | tmpval[0] = xTrue; |
| 147 | pSrc = CreatePicture(0, &pPixmap->drawable, rgbaFormat, |
| 148 | CPRepeat, tmpval, serverClient, &error); |
| 149 | |
| 150 | if (!pSrc) |
| 151 | goto bail4; |
| 152 | |
| 153 | while (nRect--) { |
| 154 | CompositePicture(op, pSrc, 0, pDst, 0, 0, 0, 0, |
| 155 | rects->x, rects->y, rects->width, rects->height); |
| 156 | rects++; |
| 157 | } |
| 158 | |
| 159 | FreePicture((pointer) pSrc, 0); |
| 160 | bail4: |
| 161 | FreeScratchGC(pGC); |
| 162 | bail3: |
| 163 | (*pScreen->DestroyPixmap) (pPixmap); |
| 164 | bail2: |
| 165 | bail1: |
| 166 | ; |
| 167 | } |
| 168 | } |