1847 lines
50 KiB
C
1847 lines
50 KiB
C
/*
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*
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* Copyright © 2000 SuSE, 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 "misc.h"
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#include "scrnintstr.h"
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#include "os.h"
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#include "regionstr.h"
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#include "validate.h"
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#include "windowstr.h"
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#include "input.h"
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#include "resource.h"
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#include "colormapst.h"
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#include "cursorstr.h"
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#include "dixstruct.h"
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#include "gcstruct.h"
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#include "servermd.h"
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#include "picturestr.h"
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_X_EXPORT int PictureScreenPrivateIndex = -1;
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int PictureWindowPrivateIndex;
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int PictureGeneration;
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RESTYPE PictureType;
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RESTYPE PictFormatType;
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RESTYPE GlyphSetType;
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int PictureCmapPolicy = PictureCmapPolicyDefault;
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/* Picture Private machinery */
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static int picturePrivateCount;
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void
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ResetPicturePrivateIndex(void)
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{
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picturePrivateCount = 0;
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}
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Bool
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PictureDestroyWindow(WindowPtr pWindow)
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{
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ScreenPtr pScreen = pWindow->drawable.pScreen;
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PicturePtr pPicture;
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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Bool ret;
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while ((pPicture = GetPictureWindow(pWindow))) {
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SetPictureWindow(pWindow, pPicture->pNext);
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if (pPicture->id)
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FreeResource(pPicture->id, PictureType);
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FreePicture((pointer) pPicture, pPicture->id);
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}
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pScreen->DestroyWindow = ps->DestroyWindow;
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ret = (*pScreen->DestroyWindow) (pWindow);
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ps->DestroyWindow = pScreen->DestroyWindow;
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pScreen->DestroyWindow = PictureDestroyWindow;
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return ret;
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}
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Bool
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PictureCloseScreen(int index, ScreenPtr pScreen)
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{
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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Bool ret;
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int n;
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pScreen->CloseScreen = ps->CloseScreen;
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ret = (*pScreen->CloseScreen) (index, pScreen);
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PictureResetFilters(pScreen);
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for (n = 0; n < ps->nformats; n++)
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if (ps->formats[n].type == PictTypeIndexed)
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(*ps->CloseIndexed) (pScreen, &ps->formats[n]);
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GlyphUninit(pScreen);
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SetPictureScreen(pScreen, 0);
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if (ps->PicturePrivateSizes)
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free(ps->PicturePrivateSizes);
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free(ps->formats);
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free(ps);
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return ret;
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}
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void
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PictureStoreColors(ColormapPtr pColormap, int ndef, xColorItem * pdef)
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{
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ScreenPtr pScreen = pColormap->pScreen;
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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pScreen->StoreColors = ps->StoreColors;
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(*pScreen->StoreColors) (pColormap, ndef, pdef);
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ps->StoreColors = pScreen->StoreColors;
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pScreen->StoreColors = PictureStoreColors;
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if (pColormap->class == PseudoColor || pColormap->class == GrayScale) {
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PictFormatPtr format = ps->formats;
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int nformats = ps->nformats;
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while (nformats--) {
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if (format->type == PictTypeIndexed &&
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format->index.pColormap == pColormap) {
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(*ps->UpdateIndexed) (pScreen, format, ndef, pdef);
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break;
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}
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format++;
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}
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}
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}
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static int
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visualDepth(ScreenPtr pScreen, VisualPtr pVisual)
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{
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int d, v;
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DepthPtr pDepth;
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for (d = 0; d < pScreen->numDepths; d++) {
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pDepth = &pScreen->allowedDepths[d];
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for (v = 0; v < pDepth->numVids; v++)
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if (pDepth->vids[v] == pVisual->vid)
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return pDepth->depth;
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}
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return 0;
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}
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typedef struct _formatInit {
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CARD32 format;
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CARD8 depth;
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} FormatInitRec, *FormatInitPtr;
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static int
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addFormat(FormatInitRec formats[256], int nformat, CARD32 format, CARD8 depth)
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{
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int n;
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for (n = 0; n < nformat; n++)
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if (formats[n].format == format && formats[n].depth == depth)
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return nformat;
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formats[nformat].format = format;
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formats[nformat].depth = depth;
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return ++nformat;
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}
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#define Mask(n) ((n) == 32 ? 0xffffffff : ((1 << (n))-1))
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PictFormatPtr
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PictureCreateDefaultFormats(ScreenPtr pScreen, int *nformatp)
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{
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int nformats, f;
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PictFormatPtr pFormats;
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FormatInitRec formats[1024];
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CARD32 format;
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CARD8 depth;
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VisualPtr pVisual;
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int v;
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int bpp;
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int type;
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int r, g, b;
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int d;
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DepthPtr pDepth;
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nformats = 0;
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/* formats required by protocol */
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formats[nformats].format = PICT_a1;
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formats[nformats].depth = 1;
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nformats++;
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formats[nformats].format = PICT_FORMAT(BitsPerPixel(8),
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PICT_TYPE_A, 8, 0, 0, 0);
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formats[nformats].depth = 8;
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nformats++;
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formats[nformats].format = PICT_FORMAT(BitsPerPixel(4),
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PICT_TYPE_A, 4, 0, 0, 0);
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formats[nformats].depth = 4;
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nformats++;
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formats[nformats].format = PICT_a8r8g8b8;
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formats[nformats].depth = 32;
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nformats++;
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formats[nformats].format = PICT_x8r8g8b8;
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formats[nformats].depth = 32;
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nformats++;
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/* now look through the depths and visuals adding other formats */
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for (v = 0; v < pScreen->numVisuals; v++) {
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pVisual = &pScreen->visuals[v];
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depth = visualDepth(pScreen, pVisual);
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if (!depth)
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continue;
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bpp = BitsPerPixel(depth);
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switch (pVisual->class) {
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case DirectColor:
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case TrueColor:
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r = Ones(pVisual->redMask);
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g = Ones(pVisual->greenMask);
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b = Ones(pVisual->blueMask);
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type = PICT_TYPE_OTHER;
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/*
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* Current rendering code supports only two direct formats,
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* fields must be packed together at the bottom of the pixel
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* and must be either RGB or BGR
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*/
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if (pVisual->offsetBlue == 0 &&
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pVisual->offsetGreen == b && pVisual->offsetRed == b + g) {
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type = PICT_TYPE_ARGB;
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}
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else if (pVisual->offsetRed == 0 &&
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pVisual->offsetGreen == r &&
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pVisual->offsetBlue == r + g) {
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type = PICT_TYPE_ABGR;
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}
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if (type != PICT_TYPE_OTHER) {
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format = PICT_FORMAT(bpp, type, 0, r, g, b);
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nformats = addFormat(formats, nformats, format, depth);
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}
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break;
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case StaticColor:
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case PseudoColor:
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format = PICT_VISFORMAT(bpp, PICT_TYPE_COLOR, v);
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nformats = addFormat(formats, nformats, format, depth);
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break;
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case StaticGray:
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case GrayScale:
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format = PICT_VISFORMAT(bpp, PICT_TYPE_GRAY, v);
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nformats = addFormat(formats, nformats, format, depth);
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break;
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}
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}
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/*
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* Walk supported depths and add useful Direct formats
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*/
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for (d = 0; d < pScreen->numDepths; d++) {
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pDepth = &pScreen->allowedDepths[d];
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bpp = BitsPerPixel(pDepth->depth);
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switch (bpp) {
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case 16:
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/* depth 12 formats */
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if (pDepth->depth >= 12) {
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nformats = addFormat(formats, nformats,
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PICT_x4r4g4b4, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_x4b4g4r4, pDepth->depth);
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}
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/* depth 15 formats */
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if (pDepth->depth >= 15) {
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nformats = addFormat(formats, nformats,
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PICT_x1r5g5b5, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_x1b5g5r5, pDepth->depth);
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}
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/* depth 16 formats */
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if (pDepth->depth >= 16) {
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nformats = addFormat(formats, nformats,
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PICT_a1r5g5b5, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_a1b5g5r5, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_r5g6b5, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_b5g6r5, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_a4r4g4b4, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_a4b4g4r4, pDepth->depth);
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}
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break;
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case 24:
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if (pDepth->depth >= 24) {
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nformats = addFormat(formats, nformats,
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PICT_r8g8b8, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_b8g8r8, pDepth->depth);
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}
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break;
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case 32:
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if (pDepth->depth >= 24) {
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nformats = addFormat(formats, nformats,
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PICT_x8r8g8b8, pDepth->depth);
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nformats = addFormat(formats, nformats,
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PICT_x8b8g8r8, pDepth->depth);
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}
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break;
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}
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}
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pFormats = malloc(nformats * sizeof(PictFormatRec));
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if (!pFormats)
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return 0;
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memset(pFormats, '\0', nformats * sizeof(PictFormatRec));
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for (f = 0; f < nformats; f++) {
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pFormats[f].id = FakeClientID(0);
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pFormats[f].depth = formats[f].depth;
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format = formats[f].format;
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pFormats[f].format = format;
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switch (PICT_FORMAT_TYPE(format)) {
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case PICT_TYPE_ARGB:
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pFormats[f].type = PictTypeDirect;
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pFormats[f].direct.alphaMask = Mask (PICT_FORMAT_A(format));
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if (pFormats[f].direct.alphaMask)
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pFormats[f].direct.alpha = (PICT_FORMAT_R(format) +
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PICT_FORMAT_G(format) +
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PICT_FORMAT_B(format));
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pFormats[f].direct.redMask = Mask (PICT_FORMAT_R(format));
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pFormats[f].direct.red = (PICT_FORMAT_G(format) +
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PICT_FORMAT_B(format));
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pFormats[f].direct.greenMask = Mask (PICT_FORMAT_G(format));
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pFormats[f].direct.green = PICT_FORMAT_B(format);
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pFormats[f].direct.blueMask = Mask (PICT_FORMAT_B(format));
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pFormats[f].direct.blue = 0;
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break;
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case PICT_TYPE_ABGR:
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pFormats[f].type = PictTypeDirect;
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pFormats[f].direct.alphaMask = Mask (PICT_FORMAT_A(format));
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if (pFormats[f].direct.alphaMask)
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pFormats[f].direct.alpha = (PICT_FORMAT_B(format) +
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PICT_FORMAT_G(format) +
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PICT_FORMAT_R(format));
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pFormats[f].direct.blueMask = Mask (PICT_FORMAT_B(format));
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pFormats[f].direct.blue = (PICT_FORMAT_G(format) +
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PICT_FORMAT_R(format));
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pFormats[f].direct.greenMask = Mask (PICT_FORMAT_G(format));
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pFormats[f].direct.green = PICT_FORMAT_R(format);
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pFormats[f].direct.redMask = Mask (PICT_FORMAT_R(format));
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pFormats[f].direct.red = 0;
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break;
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case PICT_TYPE_A:
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pFormats[f].type = PictTypeDirect;
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pFormats[f].direct.alpha = 0;
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pFormats[f].direct.alphaMask = Mask (PICT_FORMAT_A(format));
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/* remaining fields already set to zero */
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break;
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case PICT_TYPE_COLOR:
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case PICT_TYPE_GRAY:
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pFormats[f].type = PictTypeIndexed;
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pFormats[f].index.vid =
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pScreen->visuals[PICT_FORMAT_VIS(format)].vid;
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break;
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}
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}
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*nformatp = nformats;
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return pFormats;
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}
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static VisualPtr
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PictureFindVisual(ScreenPtr pScreen, VisualID visual)
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{
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int i;
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VisualPtr pVisual;
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for (i = 0, pVisual = pScreen->visuals;
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i < pScreen->numVisuals; i++, pVisual++) {
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if (pVisual->vid == visual)
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return pVisual;
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}
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return 0;
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}
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Bool
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PictureInitIndexedFormats(ScreenPtr pScreen)
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{
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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PictFormatPtr format;
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int nformat;
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if (!ps)
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return FALSE;
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format = ps->formats;
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nformat = ps->nformats;
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while (nformat--) {
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if (format->type == PictTypeIndexed && !format->index.pColormap) {
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if (format->index.vid == pScreen->rootVisual)
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format->index.pColormap =
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(ColormapPtr) LookupIDByType(pScreen->defColormap,
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RT_COLORMAP);
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else {
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VisualPtr pVisual;
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pVisual = PictureFindVisual(pScreen, format->index.vid);
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if (CreateColormap(FakeClientID(0), pScreen,
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pVisual,
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&format->index.pColormap, AllocNone,
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0) != Success) {
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return FALSE;
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}
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}
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if (!(*ps->InitIndexed) (pScreen, format))
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return FALSE;
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}
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format++;
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}
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return TRUE;
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}
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Bool
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PictureFinishInit(void)
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{
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int s;
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for (s = 0; s < screenInfo.numScreens; s++) {
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if (!GlyphFinishInit(screenInfo.screens[s]))
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return FALSE;
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if (!PictureInitIndexedFormats(screenInfo.screens[s]))
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return FALSE;
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(void) AnimCurInit(screenInfo.screens[s]);
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}
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return TRUE;
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}
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_X_EXPORT Bool
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PictureSetSubpixelOrder(ScreenPtr pScreen, int subpixel)
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{
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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if (!ps)
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return FALSE;
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ps->subpixel = subpixel;
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return TRUE;
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}
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_X_EXPORT int
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PictureGetSubpixelOrder(ScreenPtr pScreen)
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{
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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if (!ps)
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return SubPixelUnknown;
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return ps->subpixel;
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}
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PictFormatPtr
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PictureMatchVisual(ScreenPtr pScreen, int depth, VisualPtr pVisual)
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{
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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PictFormatPtr format;
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int nformat;
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int type;
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if (!ps)
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return 0;
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format = ps->formats;
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nformat = ps->nformats;
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switch (pVisual->class) {
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case StaticGray:
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case GrayScale:
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case StaticColor:
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case PseudoColor:
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type = PictTypeIndexed;
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break;
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case TrueColor:
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case DirectColor:
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type = PictTypeDirect;
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break;
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default:
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return 0;
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}
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while (nformat--) {
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if (format->depth == depth && format->type == type) {
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if (type == PictTypeIndexed) {
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if (format->index.vid == pVisual->vid)
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return format;
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}
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else {
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if (format->direct.redMask << format->direct.red ==
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pVisual->redMask &&
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format->direct.greenMask << format->direct.green ==
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pVisual->greenMask &&
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format->direct.blueMask << format->direct.blue ==
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pVisual->blueMask) {
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return format;
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}
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}
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}
|
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format++;
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}
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return 0;
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}
|
|
|
|
PictFormatPtr
|
|
PictureMatchFormat(ScreenPtr pScreen, int depth, CARD32 f)
|
|
{
|
|
PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
|
|
|
|
PictFormatPtr format;
|
|
|
|
int nformat;
|
|
|
|
if (!ps)
|
|
return 0;
|
|
format = ps->formats;
|
|
nformat = ps->nformats;
|
|
while (nformat--) {
|
|
if (format->depth == depth && format->format == (f & 0xffffff))
|
|
return format;
|
|
format++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
PictureParseCmapPolicy(const char *name)
|
|
{
|
|
if (strcmp(name, "default") == 0)
|
|
return PictureCmapPolicyDefault;
|
|
else if (strcmp(name, "mono") == 0)
|
|
return PictureCmapPolicyMono;
|
|
else if (strcmp(name, "gray") == 0)
|
|
return PictureCmapPolicyGray;
|
|
else if (strcmp(name, "color") == 0)
|
|
return PictureCmapPolicyColor;
|
|
else if (strcmp(name, "all") == 0)
|
|
return PictureCmapPolicyAll;
|
|
else
|
|
return PictureCmapPolicyInvalid;
|
|
}
|
|
|
|
_X_EXPORT Bool
|
|
PictureInit(ScreenPtr pScreen, PictFormatPtr formats, int nformats)
|
|
{
|
|
PictureScreenPtr ps;
|
|
|
|
int n;
|
|
|
|
CARD32 type, a, r, g, b;
|
|
|
|
if (PictureGeneration != serverGeneration) {
|
|
PictureType = CreateNewResourceType(FreePicture);
|
|
if (!PictureType)
|
|
return FALSE;
|
|
PictFormatType = CreateNewResourceType(FreePictFormat);
|
|
if (!PictFormatType)
|
|
return FALSE;
|
|
GlyphSetType = CreateNewResourceType(FreeGlyphSet);
|
|
if (!GlyphSetType)
|
|
return FALSE;
|
|
PictureScreenPrivateIndex = AllocateScreenPrivateIndex();
|
|
if (PictureScreenPrivateIndex < 0)
|
|
return FALSE;
|
|
PictureWindowPrivateIndex = AllocateWindowPrivateIndex();
|
|
PictureGeneration = serverGeneration;
|
|
#ifdef XResExtension
|
|
RegisterResourceName(PictureType, "PICTURE");
|
|
RegisterResourceName(PictFormatType, "PICTFORMAT");
|
|
RegisterResourceName(GlyphSetType, "GLYPHSET");
|
|
#endif
|
|
}
|
|
if (!AllocateWindowPrivate(pScreen, PictureWindowPrivateIndex, 0))
|
|
return FALSE;
|
|
|
|
if (!formats) {
|
|
formats = PictureCreateDefaultFormats(pScreen, &nformats);
|
|
if (!formats)
|
|
return FALSE;
|
|
}
|
|
for (n = 0; n < nformats; n++) {
|
|
if (!AddResource
|
|
(formats[n].id, PictFormatType, (pointer) (formats + n))) {
|
|
free(formats);
|
|
return FALSE;
|
|
}
|
|
if (formats[n].type == PictTypeIndexed) {
|
|
VisualPtr pVisual =
|
|
PictureFindVisual(pScreen, formats[n].index.vid);
|
|
if ((pVisual->class | DynamicClass) == PseudoColor)
|
|
type = PICT_TYPE_COLOR;
|
|
else
|
|
type = PICT_TYPE_GRAY;
|
|
a = r = g = b = 0;
|
|
}
|
|
else {
|
|
if ((formats[n].direct.redMask |
|
|
formats[n].direct.blueMask | formats[n].direct.greenMask) == 0)
|
|
type = PICT_TYPE_A;
|
|
else if (formats[n].direct.red > formats[n].direct.blue)
|
|
type = PICT_TYPE_ARGB;
|
|
else
|
|
type = PICT_TYPE_ABGR;
|
|
a = Ones(formats[n].direct.alphaMask);
|
|
r = Ones(formats[n].direct.redMask);
|
|
g = Ones(formats[n].direct.greenMask);
|
|
b = Ones(formats[n].direct.blueMask);
|
|
}
|
|
formats[n].format = PICT_FORMAT(0, type, a, r, g, b);
|
|
}
|
|
ps = malloc(sizeof(PictureScreenRec));
|
|
if (!ps) {
|
|
free(formats);
|
|
return FALSE;
|
|
}
|
|
SetPictureScreen(pScreen, ps);
|
|
if (!GlyphInit(pScreen)) {
|
|
SetPictureScreen(pScreen, 0);
|
|
free(formats);
|
|
free(ps);
|
|
return FALSE;
|
|
}
|
|
|
|
ps->totalPictureSize = sizeof(PictureRec);
|
|
ps->PicturePrivateSizes = 0;
|
|
ps->PicturePrivateLen = 0;
|
|
|
|
ps->formats = formats;
|
|
ps->fallback = formats;
|
|
ps->nformats = nformats;
|
|
|
|
ps->filters = 0;
|
|
ps->nfilters = 0;
|
|
ps->filterAliases = 0;
|
|
ps->nfilterAliases = 0;
|
|
|
|
ps->subpixel = SubPixelUnknown;
|
|
|
|
ps->CloseScreen = pScreen->CloseScreen;
|
|
ps->DestroyWindow = pScreen->DestroyWindow;
|
|
ps->StoreColors = pScreen->StoreColors;
|
|
pScreen->DestroyWindow = PictureDestroyWindow;
|
|
pScreen->CloseScreen = PictureCloseScreen;
|
|
pScreen->StoreColors = PictureStoreColors;
|
|
|
|
if (!PictureSetDefaultFilters(pScreen)) {
|
|
PictureResetFilters(pScreen);
|
|
SetPictureScreen(pScreen, 0);
|
|
free(formats);
|
|
free(ps);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
SetPictureToDefaults(PicturePtr pPicture)
|
|
{
|
|
pPicture->refcnt = 1;
|
|
pPicture->repeat = 0;
|
|
pPicture->graphicsExposures = FALSE;
|
|
pPicture->subWindowMode = ClipByChildren;
|
|
pPicture->polyEdge = PolyEdgeSharp;
|
|
pPicture->polyMode = PolyModePrecise;
|
|
pPicture->freeCompClip = FALSE;
|
|
pPicture->clientClipType = CT_NONE;
|
|
pPicture->componentAlpha = FALSE;
|
|
pPicture->repeatType = RepeatNone;
|
|
|
|
pPicture->alphaMap = 0;
|
|
pPicture->alphaOrigin.x = 0;
|
|
pPicture->alphaOrigin.y = 0;
|
|
|
|
pPicture->clipOrigin.x = 0;
|
|
pPicture->clipOrigin.y = 0;
|
|
pPicture->clientClip = 0;
|
|
|
|
pPicture->transform = 0;
|
|
|
|
pPicture->dither = None;
|
|
pPicture->filter = PictureGetFilterId(FilterNearest, -1, TRUE);
|
|
pPicture->filter_params = 0;
|
|
pPicture->filter_nparams = 0;
|
|
|
|
pPicture->serialNumber = GC_CHANGE_SERIAL_BIT;
|
|
pPicture->stateChanges = (1 << (CPLastBit + 1)) - 1;
|
|
pPicture->pSourcePict = 0;
|
|
}
|
|
|
|
PicturePtr
|
|
AllocatePicture(ScreenPtr pScreen)
|
|
{
|
|
PictureScreenPtr ps = GetPictureScreen(pScreen);
|
|
|
|
PicturePtr pPicture;
|
|
|
|
char *ptr;
|
|
|
|
DevUnion *ppriv;
|
|
|
|
unsigned int *sizes;
|
|
|
|
unsigned int size;
|
|
|
|
int i;
|
|
|
|
pPicture = malloc(ps->totalPictureSize);
|
|
if (!pPicture)
|
|
return 0;
|
|
ppriv = (DevUnion *) (pPicture + 1);
|
|
pPicture->devPrivates = ppriv;
|
|
sizes = ps->PicturePrivateSizes;
|
|
ptr = (char *) (ppriv + ps->PicturePrivateLen);
|
|
for (i = ps->PicturePrivateLen; --i >= 0; ppriv++, sizes++) {
|
|
if ((size = *sizes)) {
|
|
ppriv->ptr = (pointer) ptr;
|
|
ptr += size;
|
|
}
|
|
else
|
|
ppriv->ptr = (pointer) NULL;
|
|
}
|
|
return pPicture;
|
|
}
|
|
|
|
PicturePtr
|
|
CreatePicture(Picture pid,
|
|
DrawablePtr pDrawable,
|
|
PictFormatPtr pFormat,
|
|
Mask vmask, XID *vlist, ClientPtr client, int *error)
|
|
{
|
|
PicturePtr pPicture;
|
|
|
|
PictureScreenPtr ps = GetPictureScreen(pDrawable->pScreen);
|
|
|
|
pPicture = AllocatePicture(pDrawable->pScreen);
|
|
if (!pPicture) {
|
|
*error = BadAlloc;
|
|
return 0;
|
|
}
|
|
|
|
pPicture->id = pid;
|
|
pPicture->pDrawable = pDrawable;
|
|
pPicture->pFormat = pFormat;
|
|
pPicture->format = pFormat->format | (pDrawable->bitsPerPixel << 24);
|
|
if (pDrawable->type == DRAWABLE_PIXMAP) {
|
|
++((PixmapPtr) pDrawable)->refcnt;
|
|
pPicture->pNext = 0;
|
|
}
|
|
else {
|
|
pPicture->pNext = GetPictureWindow(((WindowPtr) pDrawable));
|
|
SetPictureWindow(((WindowPtr) pDrawable), pPicture);
|
|
}
|
|
|
|
SetPictureToDefaults(pPicture);
|
|
|
|
if (vmask)
|
|
*error = ChangePicture(pPicture, vmask, vlist, 0, client);
|
|
else
|
|
*error = Success;
|
|
if (*error == Success)
|
|
*error = (*ps->CreatePicture) (pPicture);
|
|
if (*error != Success) {
|
|
FreePicture(pPicture, (XID) 0);
|
|
pPicture = 0;
|
|
}
|
|
return pPicture;
|
|
}
|
|
|
|
static CARD32
|
|
xRenderColorToCard32(xRenderColor c)
|
|
{
|
|
return
|
|
(c.alpha >> 8 << 24) |
|
|
(c.red >> 8 << 16) | (c.green & 0xff00) | (c.blue >> 8);
|
|
}
|
|
|
|
static unsigned int
|
|
premultiply(unsigned int x)
|
|
{
|
|
unsigned int a = x >> 24;
|
|
|
|
unsigned int t = (x & 0xff00ff) * a + 0x800080;
|
|
|
|
t = (t + ((t >> 8) & 0xff00ff)) >> 8;
|
|
t &= 0xff00ff;
|
|
|
|
x = ((x >> 8) & 0xff) * a + 0x80;
|
|
x = (x + ((x >> 8) & 0xff));
|
|
x &= 0xff00;
|
|
x |= t | (a << 24);
|
|
return x;
|
|
}
|
|
|
|
static unsigned int
|
|
INTERPOLATE_PIXEL_256(unsigned int x, unsigned int a,
|
|
unsigned int y, unsigned int b)
|
|
{
|
|
CARD32 t = (x & 0xff00ff) * a + (y & 0xff00ff) * b;
|
|
|
|
t >>= 8;
|
|
t &= 0xff00ff;
|
|
|
|
x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b;
|
|
x &= 0xff00ff00;
|
|
x |= t;
|
|
return x;
|
|
}
|
|
|
|
static void
|
|
initGradientColorTable(SourcePictPtr pGradient, int *error)
|
|
{
|
|
int begin_pos, end_pos;
|
|
|
|
xFixed incr, dpos;
|
|
|
|
int pos, current_stop;
|
|
|
|
PictGradientStopPtr stops = pGradient->linear.stops;
|
|
|
|
int nstops = pGradient->linear.nstops;
|
|
|
|
/* The position where the gradient begins and ends */
|
|
begin_pos = (stops[0].x * PICT_GRADIENT_STOPTABLE_SIZE) >> 16;
|
|
end_pos = (stops[nstops - 1].x * PICT_GRADIENT_STOPTABLE_SIZE) >> 16;
|
|
|
|
pos = 0; /* The position in the color table. */
|
|
|
|
/* Up to first point */
|
|
while (pos <= begin_pos) {
|
|
pGradient->linear.colorTable[pos] =
|
|
xRenderColorToCard32(stops[0].color);
|
|
++pos;
|
|
}
|
|
|
|
incr = (1 << 16) / PICT_GRADIENT_STOPTABLE_SIZE; /* the double increment. */
|
|
dpos = incr * pos; /* The position in terms of 0-1. */
|
|
|
|
current_stop = 0; /* We always interpolate between current and current + 1. */
|
|
|
|
/* Gradient area */
|
|
while (pos < end_pos) {
|
|
unsigned int current_color =
|
|
xRenderColorToCard32(stops[current_stop].color);
|
|
unsigned int next_color =
|
|
xRenderColorToCard32(stops[current_stop + 1].color);
|
|
|
|
int dist = (int) (256 * (dpos - stops[current_stop].x)
|
|
/ (stops[current_stop + 1].x -
|
|
stops[current_stop].x));
|
|
int idist = 256 - dist;
|
|
|
|
pGradient->linear.colorTable[pos] =
|
|
premultiply(INTERPOLATE_PIXEL_256
|
|
(current_color, idist, next_color, dist));
|
|
|
|
++pos;
|
|
dpos += incr;
|
|
|
|
if (dpos > stops[current_stop + 1].x)
|
|
++current_stop;
|
|
}
|
|
|
|
/* After last point */
|
|
while (pos < PICT_GRADIENT_STOPTABLE_SIZE) {
|
|
pGradient->linear.colorTable[pos] =
|
|
xRenderColorToCard32(stops[nstops - 1].color);
|
|
++pos;
|
|
}
|
|
}
|
|
|
|
static void
|
|
initGradient(SourcePictPtr pGradient, int stopCount,
|
|
xFixed * stopPoints, xRenderColor * stopColors, int *error)
|
|
{
|
|
int i;
|
|
|
|
xFixed dpos;
|
|
|
|
if (stopCount <= 0) {
|
|
*error = BadValue;
|
|
return;
|
|
}
|
|
|
|
dpos = -1;
|
|
for (i = 0; i < stopCount; ++i) {
|
|
if (stopPoints[i] <= dpos || stopPoints[i] > (1 << 16)) {
|
|
*error = BadValue;
|
|
return;
|
|
}
|
|
dpos = stopPoints[i];
|
|
}
|
|
|
|
pGradient->linear.stops = malloc(stopCount * sizeof(PictGradientStop));
|
|
if (!pGradient->linear.stops) {
|
|
*error = BadAlloc;
|
|
return;
|
|
}
|
|
|
|
pGradient->linear.nstops = stopCount;
|
|
|
|
for (i = 0; i < stopCount; ++i) {
|
|
pGradient->linear.stops[i].x = stopPoints[i];
|
|
pGradient->linear.stops[i].color = stopColors[i];
|
|
}
|
|
initGradientColorTable(pGradient, error);
|
|
}
|
|
|
|
static PicturePtr
|
|
createSourcePicture(void)
|
|
{
|
|
PicturePtr pPicture;
|
|
|
|
pPicture = malloc(sizeof(PictureRec));
|
|
pPicture->pDrawable = 0;
|
|
pPicture->format = PICT_a8r8g8b8;
|
|
pPicture->pFormat = 0;
|
|
pPicture->pNext = 0;
|
|
pPicture->devPrivates = 0;
|
|
|
|
SetPictureToDefaults(pPicture);
|
|
return pPicture;
|
|
}
|
|
|
|
PicturePtr
|
|
CreateSolidPicture(Picture pid, xRenderColor * color, int *error)
|
|
{
|
|
PicturePtr pPicture;
|
|
|
|
pPicture = createSourcePicture();
|
|
if (!pPicture) {
|
|
*error = BadAlloc;
|
|
return 0;
|
|
}
|
|
|
|
pPicture->id = pid;
|
|
pPicture->pSourcePict = malloc(sizeof(PictSolidFill));
|
|
if (!pPicture->pSourcePict) {
|
|
*error = BadAlloc;
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
pPicture->pSourcePict->type = SourcePictTypeSolidFill;
|
|
pPicture->pSourcePict->solidFill.color = xRenderColorToCard32(*color);
|
|
return pPicture;
|
|
}
|
|
|
|
PicturePtr
|
|
CreateLinearGradientPicture(Picture pid, xPointFixed * p1, xPointFixed * p2,
|
|
int nStops, xFixed * stops, xRenderColor * colors,
|
|
int *error)
|
|
{
|
|
PicturePtr pPicture;
|
|
|
|
if (nStops < 2) {
|
|
*error = BadValue;
|
|
return 0;
|
|
}
|
|
|
|
pPicture = createSourcePicture();
|
|
if (!pPicture) {
|
|
*error = BadAlloc;
|
|
return 0;
|
|
}
|
|
if (p1->x == p2->x && p1->y == p2->y) {
|
|
*error = BadValue;
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
|
|
pPicture->id = pid;
|
|
pPicture->pSourcePict = malloc(sizeof(PictLinearGradient));
|
|
if (!pPicture->pSourcePict) {
|
|
*error = BadAlloc;
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
|
|
pPicture->pSourcePict->linear.type = SourcePictTypeLinear;
|
|
pPicture->pSourcePict->linear.p1 = *p1;
|
|
pPicture->pSourcePict->linear.p2 = *p2;
|
|
|
|
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
|
|
if (*error) {
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
return pPicture;
|
|
}
|
|
|
|
#define FixedToDouble(x) ((x)/65536.)
|
|
|
|
PicturePtr
|
|
CreateRadialGradientPicture(Picture pid, xPointFixed * inner,
|
|
xPointFixed * outer, xFixed innerRadius,
|
|
xFixed outerRadius, int nStops, xFixed * stops,
|
|
xRenderColor * colors, int *error)
|
|
{
|
|
PicturePtr pPicture;
|
|
|
|
PictRadialGradient *radial;
|
|
|
|
if (nStops < 2) {
|
|
*error = BadValue;
|
|
return 0;
|
|
}
|
|
|
|
pPicture = createSourcePicture();
|
|
if (!pPicture) {
|
|
*error = BadAlloc;
|
|
return 0;
|
|
}
|
|
{
|
|
double dx = (double) (inner->x - outer->x);
|
|
|
|
double dy = (double) (inner->y - outer->y);
|
|
|
|
if (sqrt(dx * dx + dy * dy) + (double) (innerRadius) >
|
|
(double) (outerRadius)) {
|
|
*error = BadValue;
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
pPicture->id = pid;
|
|
pPicture->pSourcePict = malloc(sizeof(PictRadialGradient));
|
|
if (!pPicture->pSourcePict) {
|
|
*error = BadAlloc;
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
radial = &pPicture->pSourcePict->radial;
|
|
|
|
radial->type = SourcePictTypeRadial;
|
|
{
|
|
double x = (double) innerRadius / (double) outerRadius;
|
|
|
|
radial->dx = (outer->x - inner->x);
|
|
radial->dy = (outer->y - inner->y);
|
|
radial->fx = (inner->x) - x * radial->dx;
|
|
radial->fy = (inner->y) - x * radial->dy;
|
|
radial->m = 1. / (1 + x);
|
|
radial->b = -x * radial->m;
|
|
radial->dx /= 65536.;
|
|
radial->dy /= 65536.;
|
|
radial->fx /= 65536.;
|
|
radial->fy /= 65536.;
|
|
x = outerRadius / 65536.;
|
|
radial->a = x * x - radial->dx * radial->dx - radial->dy * radial->dy;
|
|
}
|
|
|
|
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
|
|
if (*error) {
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
return pPicture;
|
|
}
|
|
|
|
PicturePtr
|
|
CreateConicalGradientPicture(Picture pid, xPointFixed * center, xFixed angle,
|
|
int nStops, xFixed * stops, xRenderColor * colors,
|
|
int *error)
|
|
{
|
|
PicturePtr pPicture;
|
|
|
|
if (nStops < 2) {
|
|
*error = BadValue;
|
|
return 0;
|
|
}
|
|
|
|
pPicture = createSourcePicture();
|
|
if (!pPicture) {
|
|
*error = BadAlloc;
|
|
return 0;
|
|
}
|
|
|
|
pPicture->id = pid;
|
|
pPicture->pSourcePict = malloc(sizeof(PictConicalGradient));
|
|
if (!pPicture->pSourcePict) {
|
|
*error = BadAlloc;
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
|
|
pPicture->pSourcePict->conical.type = SourcePictTypeConical;
|
|
pPicture->pSourcePict->conical.center = *center;
|
|
pPicture->pSourcePict->conical.angle = angle;
|
|
|
|
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
|
|
if (*error) {
|
|
free(pPicture);
|
|
return 0;
|
|
}
|
|
return pPicture;
|
|
}
|
|
|
|
#define NEXT_VAL(_type) (vlist ? (_type) *vlist++ : (_type) ulist++->val)
|
|
|
|
#define NEXT_PTR(_type) ((_type) ulist++->ptr)
|
|
|
|
int
|
|
ChangePicture(PicturePtr pPicture,
|
|
Mask vmask, XID *vlist, DevUnion *ulist, ClientPtr client)
|
|
{
|
|
ScreenPtr pScreen = pPicture->pDrawable ? pPicture->pDrawable->pScreen : 0;
|
|
|
|
PictureScreenPtr ps = pScreen ? GetPictureScreen(pScreen) : 0;
|
|
|
|
BITS32 index2;
|
|
|
|
int error = 0;
|
|
|
|
BITS32 maskQ;
|
|
|
|
pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
|
|
maskQ = vmask;
|
|
while (vmask && !error) {
|
|
index2 = (BITS32) lowbit(vmask);
|
|
vmask &= ~index2;
|
|
pPicture->stateChanges |= index2;
|
|
switch (index2) {
|
|
case CPRepeat:
|
|
{
|
|
unsigned int newr;
|
|
|
|
newr = NEXT_VAL(unsigned int);
|
|
|
|
if (newr <= RepeatReflect) {
|
|
pPicture->repeat = (newr != RepeatNone);
|
|
pPicture->repeatType = newr;
|
|
}
|
|
else {
|
|
client->errorValue = newr;
|
|
error = BadValue;
|
|
}
|
|
}
|
|
break;
|
|
case CPAlphaMap:
|
|
{
|
|
PicturePtr pAlpha;
|
|
|
|
if (vlist) {
|
|
Picture pid = NEXT_VAL(Picture);
|
|
|
|
if (pid == None)
|
|
pAlpha = 0;
|
|
else {
|
|
pAlpha = (PicturePtr) SecurityLookupIDByType(client,
|
|
pid,
|
|
PictureType,
|
|
SecurityWriteAccess
|
|
|
|
|
SecurityReadAccess);
|
|
if (!pAlpha) {
|
|
client->errorValue = pid;
|
|
error = BadPixmap;
|
|
break;
|
|
}
|
|
if (pAlpha->pDrawable == NULL ||
|
|
pAlpha->pDrawable->type != DRAWABLE_PIXMAP) {
|
|
client->errorValue = pid;
|
|
error = BadMatch;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
pAlpha = NEXT_PTR(PicturePtr);
|
|
if (!error) {
|
|
if (pAlpha && pAlpha->pDrawable->type == DRAWABLE_PIXMAP)
|
|
pAlpha->refcnt++;
|
|
if (pPicture->alphaMap)
|
|
FreePicture((pointer) pPicture->alphaMap, (XID) 0);
|
|
pPicture->alphaMap = pAlpha;
|
|
}
|
|
}
|
|
break;
|
|
case CPAlphaXOrigin:
|
|
pPicture->alphaOrigin.x = NEXT_VAL(INT16);
|
|
|
|
break;
|
|
case CPAlphaYOrigin:
|
|
pPicture->alphaOrigin.y = NEXT_VAL(INT16);
|
|
|
|
break;
|
|
case CPClipXOrigin:
|
|
pPicture->clipOrigin.x = NEXT_VAL(INT16);
|
|
|
|
break;
|
|
case CPClipYOrigin:
|
|
pPicture->clipOrigin.y = NEXT_VAL(INT16);
|
|
|
|
break;
|
|
case CPClipMask:
|
|
{
|
|
Pixmap pid;
|
|
|
|
PixmapPtr pPixmap;
|
|
|
|
int clipType;
|
|
|
|
if (!pScreen)
|
|
return BadDrawable;
|
|
|
|
if (vlist) {
|
|
pid = NEXT_VAL(Pixmap);
|
|
if (pid == None) {
|
|
clipType = CT_NONE;
|
|
pPixmap = NullPixmap;
|
|
}
|
|
else {
|
|
clipType = CT_PIXMAP;
|
|
pPixmap = (PixmapPtr) SecurityLookupIDByType(client,
|
|
pid,
|
|
RT_PIXMAP,
|
|
SecurityReadAccess);
|
|
if (!pPixmap) {
|
|
client->errorValue = pid;
|
|
error = BadPixmap;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
pPixmap = NEXT_PTR(PixmapPtr);
|
|
|
|
if (pPixmap)
|
|
clipType = CT_PIXMAP;
|
|
else
|
|
clipType = CT_NONE;
|
|
}
|
|
|
|
if (pPixmap) {
|
|
if ((pPixmap->drawable.depth != 1) ||
|
|
(pPixmap->drawable.pScreen != pScreen)) {
|
|
error = BadMatch;
|
|
break;
|
|
}
|
|
else {
|
|
clipType = CT_PIXMAP;
|
|
pPixmap->refcnt++;
|
|
}
|
|
}
|
|
error = (*ps->ChangePictureClip) (pPicture, clipType,
|
|
(pointer) pPixmap, 0);
|
|
break;
|
|
}
|
|
case CPGraphicsExposure:
|
|
{
|
|
unsigned int newe;
|
|
|
|
newe = NEXT_VAL(unsigned int);
|
|
|
|
if (newe <= xTrue)
|
|
pPicture->graphicsExposures = newe;
|
|
else {
|
|
client->errorValue = newe;
|
|
error = BadValue;
|
|
}
|
|
}
|
|
break;
|
|
case CPSubwindowMode:
|
|
{
|
|
unsigned int news;
|
|
|
|
news = NEXT_VAL(unsigned int);
|
|
|
|
if (news == ClipByChildren || news == IncludeInferiors)
|
|
pPicture->subWindowMode = news;
|
|
else {
|
|
client->errorValue = news;
|
|
error = BadValue;
|
|
}
|
|
}
|
|
break;
|
|
case CPPolyEdge:
|
|
{
|
|
unsigned int newe;
|
|
|
|
newe = NEXT_VAL(unsigned int);
|
|
|
|
if (newe == PolyEdgeSharp || newe == PolyEdgeSmooth)
|
|
pPicture->polyEdge = newe;
|
|
else {
|
|
client->errorValue = newe;
|
|
error = BadValue;
|
|
}
|
|
}
|
|
break;
|
|
case CPPolyMode:
|
|
{
|
|
unsigned int newm;
|
|
|
|
newm = NEXT_VAL(unsigned int);
|
|
|
|
if (newm == PolyModePrecise || newm == PolyModeImprecise)
|
|
pPicture->polyMode = newm;
|
|
else {
|
|
client->errorValue = newm;
|
|
error = BadValue;
|
|
}
|
|
}
|
|
break;
|
|
case CPDither:
|
|
pPicture->dither = NEXT_VAL(Atom);
|
|
|
|
break;
|
|
case CPComponentAlpha:
|
|
{
|
|
unsigned int newca;
|
|
|
|
newca = NEXT_VAL(unsigned int);
|
|
|
|
if (newca <= xTrue)
|
|
pPicture->componentAlpha = newca;
|
|
else {
|
|
client->errorValue = newca;
|
|
error = BadValue;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
client->errorValue = maskQ;
|
|
error = BadValue;
|
|
break;
|
|
}
|
|
}
|
|
if (ps)
|
|
(*ps->ChangePicture) (pPicture, maskQ);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
SetPictureClipRects(PicturePtr pPicture,
|
|
int xOrigin, int yOrigin, int nRect, xRectangle *rects)
|
|
{
|
|
ScreenPtr pScreen = pPicture->pDrawable->pScreen;
|
|
|
|
PictureScreenPtr ps = GetPictureScreen(pScreen);
|
|
|
|
RegionPtr clientClip;
|
|
|
|
int result;
|
|
|
|
clientClip = RECTS_TO_REGION(nRect, rects, CT_UNSORTED);
|
|
if (!clientClip)
|
|
return BadAlloc;
|
|
result = (*ps->ChangePictureClip) (pPicture, CT_REGION,
|
|
(pointer) clientClip, 0);
|
|
if (result == Success) {
|
|
pPicture->clipOrigin.x = xOrigin;
|
|
pPicture->clipOrigin.y = yOrigin;
|
|
pPicture->stateChanges |= CPClipXOrigin | CPClipYOrigin | CPClipMask;
|
|
pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
int
|
|
SetPictureClipRegion(PicturePtr pPicture,
|
|
int xOrigin, int yOrigin, RegionPtr pRegion)
|
|
{
|
|
ScreenPtr pScreen = pPicture->pDrawable->pScreen;
|
|
|
|
PictureScreenPtr ps = GetPictureScreen(pScreen);
|
|
|
|
RegionPtr clientClip;
|
|
|
|
int result;
|
|
|
|
int type;
|
|
|
|
if (pRegion) {
|
|
type = CT_REGION;
|
|
clientClip = REGION_CREATE(REGION_EXTENTS(pRegion),
|
|
REGION_NUM_RECTS(pRegion));
|
|
if (!clientClip)
|
|
return BadAlloc;
|
|
if (!REGION_COPY(clientClip, pRegion)) {
|
|
REGION_DESTROY(clientClip);
|
|
return BadAlloc;
|
|
}
|
|
}
|
|
else {
|
|
type = CT_NONE;
|
|
clientClip = 0;
|
|
}
|
|
|
|
result = (*ps->ChangePictureClip) (pPicture, type, (pointer) clientClip, 0);
|
|
if (result == Success) {
|
|
pPicture->clipOrigin.x = xOrigin;
|
|
pPicture->clipOrigin.y = yOrigin;
|
|
pPicture->stateChanges |= CPClipXOrigin | CPClipYOrigin | CPClipMask;
|
|
pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static Bool
|
|
transformIsIdentity(PictTransform * t)
|
|
{
|
|
return ((t->matrix[0][0] == t->matrix[1][1]) &&
|
|
(t->matrix[0][0] == t->matrix[2][2]) &&
|
|
(t->matrix[0][0] != 0) &&
|
|
(t->matrix[0][1] == 0) &&
|
|
(t->matrix[0][2] == 0) &&
|
|
(t->matrix[1][0] == 0) &&
|
|
(t->matrix[1][2] == 0) &&
|
|
(t->matrix[2][0] == 0) && (t->matrix[2][1] == 0));
|
|
}
|
|
|
|
int
|
|
SetPictureTransform(PicturePtr pPicture, PictTransform * transform)
|
|
{
|
|
if (transform && transformIsIdentity(transform))
|
|
transform = 0;
|
|
|
|
if (transform) {
|
|
if (!pPicture->transform) {
|
|
pPicture->transform =
|
|
malloc(sizeof(PictTransform));
|
|
if (!pPicture->transform)
|
|
return BadAlloc;
|
|
}
|
|
*pPicture->transform = *transform;
|
|
}
|
|
else {
|
|
if (pPicture->transform) {
|
|
free(pPicture->transform);
|
|
pPicture->transform = 0;
|
|
}
|
|
}
|
|
pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
|
|
|
|
if (pPicture->pDrawable != NULL) {
|
|
int result;
|
|
|
|
PictureScreenPtr ps = GetPictureScreen(pPicture->pDrawable->pScreen);
|
|
|
|
result = (*ps->ChangePictureTransform) (pPicture, transform);
|
|
|
|
return result;
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
static void
|
|
ValidateOnePicture(PicturePtr pPicture)
|
|
{
|
|
if (pPicture->pDrawable &&
|
|
pPicture->serialNumber != pPicture->pDrawable->serialNumber) {
|
|
PictureScreenPtr ps = GetPictureScreen(pPicture->pDrawable->pScreen);
|
|
|
|
(*ps->ValidatePicture) (pPicture, pPicture->stateChanges);
|
|
pPicture->stateChanges = 0;
|
|
pPicture->serialNumber = pPicture->pDrawable->serialNumber;
|
|
}
|
|
}
|
|
|
|
void
|
|
ValidatePicture(PicturePtr pPicture)
|
|
{
|
|
ValidateOnePicture(pPicture);
|
|
if (pPicture->alphaMap)
|
|
ValidateOnePicture(pPicture->alphaMap);
|
|
}
|
|
|
|
int
|
|
FreePicture(pointer value, XID pid)
|
|
{
|
|
PicturePtr pPicture = (PicturePtr) value;
|
|
|
|
if (--pPicture->refcnt == 0) {
|
|
if (pPicture->transform)
|
|
free(pPicture->transform);
|
|
if (!pPicture->pDrawable) {
|
|
if (pPicture->pSourcePict) {
|
|
if (pPicture->pSourcePict->type != SourcePictTypeSolidFill)
|
|
free(pPicture->pSourcePict->linear.stops);
|
|
free(pPicture->pSourcePict);
|
|
}
|
|
}
|
|
else {
|
|
ScreenPtr pScreen = pPicture->pDrawable->pScreen;
|
|
|
|
PictureScreenPtr ps = GetPictureScreen(pScreen);
|
|
|
|
if (pPicture->alphaMap)
|
|
FreePicture((pointer) pPicture->alphaMap, (XID) 0);
|
|
(*ps->DestroyPicture) (pPicture);
|
|
(*ps->DestroyPictureClip) (pPicture);
|
|
if (pPicture->pDrawable->type == DRAWABLE_WINDOW) {
|
|
WindowPtr pWindow = (WindowPtr) pPicture->pDrawable;
|
|
|
|
PicturePtr *pPrev;
|
|
|
|
for (pPrev =
|
|
(PicturePtr *) & ((pWindow)->
|
|
devPrivates[PictureWindowPrivateIndex].
|
|
ptr); *pPrev; pPrev = &(*pPrev)->pNext) {
|
|
if (*pPrev == pPicture) {
|
|
*pPrev = pPicture->pNext;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (pPicture->pDrawable->type == DRAWABLE_PIXMAP) {
|
|
(*pScreen->DestroyPixmap) ((PixmapPtr) pPicture->pDrawable);
|
|
}
|
|
}
|
|
free(pPicture);
|
|
}
|
|
return Success;
|
|
}
|
|
|
|
int
|
|
FreePictFormat(pointer pPictFormat, XID pid)
|
|
{
|
|
return Success;
|
|
}
|
|
|
|
/**
|
|
* ReduceCompositeOp is used to choose simpler ops for cases where alpha
|
|
* channels are always one and so math on the alpha channel per pixel becomes
|
|
* unnecessary. It may also avoid destination reads sometimes if apps aren't
|
|
* being careful to avoid these cases.
|
|
*/
|
|
static Bool
|
|
ReduceCompositeOp(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst)
|
|
{
|
|
Bool no_src_alpha, no_dst_alpha;
|
|
|
|
no_src_alpha = PICT_FORMAT_COLOR(pSrc->format) &&
|
|
PICT_FORMAT_A(pSrc->format) == 0 &&
|
|
pSrc->alphaMap == NULL && pMask == NULL;
|
|
no_dst_alpha = PICT_FORMAT_COLOR(pDst->format) &&
|
|
PICT_FORMAT_A(pDst->format) == 0 && pDst->alphaMap == NULL;
|
|
|
|
/* TODO, maybe: Conjoint and Disjoint op reductions? */
|
|
|
|
/* Deal with simplifications where the source alpha is always 1. */
|
|
if (no_src_alpha) {
|
|
switch (op) {
|
|
case PictOpOver:
|
|
op = PictOpSrc;
|
|
break;
|
|
case PictOpInReverse:
|
|
op = PictOpDst;
|
|
break;
|
|
case PictOpOutReverse:
|
|
op = PictOpClear;
|
|
break;
|
|
case PictOpAtop:
|
|
op = PictOpIn;
|
|
break;
|
|
case PictOpAtopReverse:
|
|
op = PictOpOverReverse;
|
|
break;
|
|
case PictOpXor:
|
|
op = PictOpOut;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Deal with simplifications when the destination alpha is always 1 */
|
|
if (no_dst_alpha) {
|
|
switch (op) {
|
|
case PictOpOverReverse:
|
|
op = PictOpDst;
|
|
break;
|
|
case PictOpIn:
|
|
op = PictOpSrc;
|
|
break;
|
|
case PictOpOut:
|
|
op = PictOpClear;
|
|
break;
|
|
case PictOpAtop:
|
|
op = PictOpOver;
|
|
break;
|
|
case PictOpXor:
|
|
op = PictOpOutReverse;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Reduce some con/disjoint ops to the basic names. */
|
|
switch (op) {
|
|
case PictOpDisjointClear:
|
|
case PictOpConjointClear:
|
|
op = PictOpClear;
|
|
break;
|
|
case PictOpDisjointSrc:
|
|
case PictOpConjointSrc:
|
|
op = PictOpSrc;
|
|
break;
|
|
case PictOpDisjointDst:
|
|
case PictOpConjointDst:
|
|
op = PictOpDst;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return op;
|
|
}
|
|
|
|
void
|
|
CompositePicture(CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask,
|
|
INT16 xDst, INT16 yDst, CARD16 width, CARD16 height)
|
|
{
|
|
PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
|
|
|
|
ValidatePicture(pSrc);
|
|
if (pMask)
|
|
ValidatePicture(pMask);
|
|
ValidatePicture(pDst);
|
|
|
|
op = ReduceCompositeOp(op, pSrc, pMask, pDst);
|
|
if (op == PictOpDst)
|
|
return;
|
|
|
|
(*ps->Composite) (op,
|
|
pSrc,
|
|
pMask,
|
|
pDst,
|
|
xSrc, ySrc, xMask, yMask, xDst, yDst, width, height);
|
|
}
|
|
|
|
void
|
|
CompositeGlyphs(CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pDst,
|
|
PictFormatPtr maskFormat,
|
|
INT16 xSrc,
|
|
INT16 ySrc, int nlist, GlyphListPtr lists, GlyphPtr * glyphs)
|
|
{
|
|
PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
|
|
|
|
ValidatePicture(pSrc);
|
|
ValidatePicture(pDst);
|
|
(*ps->Glyphs) (op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, lists,
|
|
glyphs);
|
|
}
|
|
|
|
void
|
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CompositeRects(CARD8 op,
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PicturePtr pDst,
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xRenderColor * color, int nRect, xRectangle *rects)
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{
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PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
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ValidatePicture(pDst);
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(*ps->CompositeRects) (op, pDst, color, nRect, rects);
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}
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void
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CompositeTrapezoids(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pDst,
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PictFormatPtr maskFormat,
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INT16 xSrc, INT16 ySrc, int ntrap, xTrapezoid * traps)
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{
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PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
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ValidatePicture(pSrc);
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ValidatePicture(pDst);
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(*ps->Trapezoids) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntrap, traps);
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}
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void
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CompositeTriangles(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pDst,
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PictFormatPtr maskFormat,
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INT16 xSrc,
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INT16 ySrc, int ntriangles, xTriangle * triangles)
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{
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PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
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ValidatePicture(pSrc);
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ValidatePicture(pDst);
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(*ps->Triangles) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntriangles,
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triangles);
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}
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void
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CompositeTriStrip(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pDst,
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PictFormatPtr maskFormat,
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INT16 xSrc, INT16 ySrc, int npoints, xPointFixed * points)
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{
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PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
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ValidatePicture(pSrc);
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ValidatePicture(pDst);
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(*ps->TriStrip) (op, pSrc, pDst, maskFormat, xSrc, ySrc, npoints, points);
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}
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void
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CompositeTriFan(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pDst,
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PictFormatPtr maskFormat,
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INT16 xSrc, INT16 ySrc, int npoints, xPointFixed * points)
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{
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PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
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ValidatePicture(pSrc);
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ValidatePicture(pDst);
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(*ps->TriFan) (op, pSrc, pDst, maskFormat, xSrc, ySrc, npoints, points);
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}
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void
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AddTraps(PicturePtr pPicture, INT16 xOff, INT16 yOff, int ntrap, xTrap * traps)
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{
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PictureScreenPtr ps = GetPictureScreen(pPicture->pDrawable->pScreen);
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ValidatePicture(pPicture);
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(*ps->AddTraps) (pPicture, xOff, yOff, ntrap, traps);
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}
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#define MAX_FIXED_48_16 ((xFixed_48_16) 0x7fffffff)
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#define MIN_FIXED_48_16 (-((xFixed_48_16) 1 << 31))
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_X_EXPORT Bool
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PictureTransformPoint3d(PictTransformPtr transform, PictVectorPtr vector)
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{
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PictVector result;
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int i, j;
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xFixed_32_32 partial;
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xFixed_48_16 v;
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for (j = 0; j < 3; j++) {
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v = 0;
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for (i = 0; i < 3; i++) {
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partial = ((xFixed_48_16) transform->matrix[j][i] *
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(xFixed_48_16) vector->vector[i]);
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v += partial >> 16;
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}
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if (v > MAX_FIXED_48_16 || v < MIN_FIXED_48_16)
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return FALSE;
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result.vector[j] = (xFixed) v;
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}
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if (!result.vector[2])
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return FALSE;
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*vector = result;
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return TRUE;
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}
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_X_EXPORT Bool
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PictureTransformPoint(PictTransformPtr transform, PictVectorPtr vector)
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{
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PictVector result;
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int i, j;
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xFixed_32_32 partial;
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xFixed_48_16 v;
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for (j = 0; j < 3; j++) {
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v = 0;
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for (i = 0; i < 3; i++) {
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partial = ((xFixed_48_16) transform->matrix[j][i] *
|
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(xFixed_48_16) vector->vector[i]);
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v += partial >> 16;
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}
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if (v > MAX_FIXED_48_16 || v < MIN_FIXED_48_16)
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return FALSE;
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result.vector[j] = (xFixed) v;
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}
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if (!result.vector[2])
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return FALSE;
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for (j = 0; j < 2; j++) {
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partial = (xFixed_48_16) result.vector[j] << 16;
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v = partial / result.vector[2];
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if (v > MAX_FIXED_48_16 || v < MIN_FIXED_48_16)
|
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return FALSE;
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vector->vector[j] = (xFixed) v;
|
|
}
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vector->vector[2] = xFixed1;
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return TRUE;
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}
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