aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/dmx/dmxpixmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/hw/dmx/dmxpixmap.c')
-rw-r--r--xorg-server/hw/dmx/dmxpixmap.c253
1 files changed, 253 insertions, 0 deletions
diff --git a/xorg-server/hw/dmx/dmxpixmap.c b/xorg-server/hw/dmx/dmxpixmap.c
new file mode 100644
index 000000000..66224031a
--- /dev/null
+++ b/xorg-server/hw/dmx/dmxpixmap.c
@@ -0,0 +1,253 @@
+/*
+ * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * Authors:
+ * Kevin E. Martin <kem@redhat.com>
+ *
+ */
+
+/** \file
+ * Provides pixmap support. */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "dmx.h"
+#include "dmxsync.h"
+#include "dmxpixmap.h"
+
+#include "pixmapstr.h"
+#include "servermd.h"
+#include "privates.h"
+
+/** Initialize a private area in \a pScreen for pixmap information. */
+Bool dmxInitPixmap(ScreenPtr pScreen)
+{
+ if (!dixRequestPrivate(dmxPixPrivateKey, sizeof(dmxPixPrivRec)))
+ return FALSE;
+
+ return TRUE;
+}
+
+/** Create a pixmap on the back-end server. */
+void dmxBECreatePixmap(PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+ dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);
+
+ /* Make sure we haven't already created this pixmap. This can
+ * happen when the pixmap is used elsewhere (e.g., as a background
+ * or border for a window) and the refcnt > 1.
+ */
+ if (pPixPriv->pixmap)
+ return;
+
+ if (pPixmap->drawable.width && pPixmap->drawable.height) {
+ pPixPriv->pixmap = XCreatePixmap(dmxScreen->beDisplay,
+ dmxScreen->scrnWin,
+ pPixmap->drawable.width,
+ pPixmap->drawable.height,
+ pPixmap->drawable.depth);
+ dmxSync(dmxScreen, FALSE);
+ }
+}
+
+/** Create a pixmap for \a pScreen with the specified \a width, \a
+ * height, and \a depth. */
+PixmapPtr dmxCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
+ unsigned usage_hint)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+ PixmapPtr pPixmap;
+ int bpp;
+ dmxPixPrivPtr pPixPriv;
+
+#if 0
+ DMX_UNWRAP(CreatePixmap, dmxScreen, pScreen);
+ if (pScreen->CreatePixmap)
+ ret = pScreen->CreatePixmap(pPixmap);
+#endif
+
+ /* Create pixmap on back-end server */
+ if (depth == 24) bpp = 32;
+ else bpp = depth;
+
+ pPixmap = AllocatePixmap(pScreen, 0);
+ if (!pPixmap)
+ return NullPixmap;
+
+ pPixmap->drawable.type = DRAWABLE_PIXMAP;
+ pPixmap->drawable.class = 0;
+ pPixmap->drawable.pScreen = pScreen;
+ pPixmap->drawable.depth = depth;
+ pPixmap->drawable.bitsPerPixel = bpp;
+ pPixmap->drawable.id = 0;
+ pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pPixmap->drawable.x = 0;
+ pPixmap->drawable.y = 0;
+ pPixmap->drawable.width = width;
+ pPixmap->drawable.height = height;
+ pPixmap->devKind = PixmapBytePad(width, bpp);
+ pPixmap->refcnt = 1;
+ pPixmap->usage_hint = usage_hint;
+
+ pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);
+ pPixPriv->pixmap = (Pixmap)0;
+ pPixPriv->detachedImage = NULL;
+
+ /* Create the pixmap on the back-end server */
+ if (dmxScreen->beDisplay) {
+ dmxBECreatePixmap(pPixmap);
+ }
+
+#if 0
+ DMX_WRAP(CreatePixmap, dmxCreatePixmap, dmxScreen, pScreen);
+#endif
+
+ return pPixmap;
+}
+
+/** Destroy the pixmap on the back-end server. */
+Bool dmxBEFreePixmap(PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+ dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);
+
+ if (pPixPriv->pixmap) {
+ XFreePixmap(dmxScreen->beDisplay, pPixPriv->pixmap);
+ pPixPriv->pixmap = (Pixmap)0;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/** Destroy the pixmap pointed to by \a pPixmap. */
+Bool dmxDestroyPixmap(PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+ Bool ret = TRUE;
+
+#if 0
+ DMX_UNWRAP(DestroyPixmap, dmxScreen, pScreen);
+#endif
+
+ if (--pPixmap->refcnt)
+ return TRUE;
+
+ /* Destroy pixmap on back-end server */
+ if (dmxScreen->beDisplay) {
+ if (dmxBEFreePixmap(pPixmap)) {
+ /* Also make sure that we destroy any detached image */
+ dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);
+ if (pPixPriv->detachedImage)
+ XDestroyImage(pPixPriv->detachedImage);
+ dmxSync(dmxScreen, FALSE);
+ }
+ }
+ dixFreePrivates(pPixmap->devPrivates);
+ xfree(pPixmap);
+
+#if 0
+ if (pScreen->DestroyPixmap)
+ ret = pScreen->DestroyPixmap(pPixmap);
+ DMX_WRAP(DestroyPixmap, dmxDestroyPixmap, dmxScreen, pScreen);
+#endif
+
+ return ret;
+}
+
+/** Create and return a region based on the pixmap pointed to by \a
+ * pPixmap. */
+RegionPtr dmxBitmapToRegion(PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+ dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);
+ XImage *ximage;
+ RegionPtr pReg, pTmpReg;
+ int x, y;
+ unsigned long previousPixel, currentPixel;
+ BoxRec Box;
+ Bool overlap;
+
+ if (!dmxScreen->beDisplay) {
+ pReg = REGION_CREATE(pScreen, NullBox, 1);
+ return pReg;
+ }
+
+ ximage = XGetImage(dmxScreen->beDisplay, pPixPriv->pixmap, 0, 0,
+ pPixmap->drawable.width, pPixmap->drawable.height,
+ 1, XYPixmap);
+
+ pReg = REGION_CREATE(pScreen, NullBox, 1);
+ pTmpReg = REGION_CREATE(pScreen, NullBox, 1);
+ if(!pReg || !pTmpReg) {
+ XDestroyImage(ximage);
+ return NullRegion;
+ }
+
+ for (y = 0; y < pPixmap->drawable.height; y++) {
+ Box.y1 = y;
+ Box.y2 = y + 1;
+ previousPixel = 0L;
+ for (x = 0; x < pPixmap->drawable.width; x++) {
+ currentPixel = XGetPixel(ximage, x, y);
+ if (previousPixel != currentPixel) {
+ if (previousPixel == 0L) {
+ /* left edge */
+ Box.x1 = x;
+ } else if (currentPixel == 0L) {
+ /* right edge */
+ Box.x2 = x;
+ REGION_RESET(pScreen, pTmpReg, &Box);
+ REGION_APPEND(pScreen, pReg, pTmpReg);
+ }
+ previousPixel = currentPixel;
+ }
+ }
+ if (previousPixel != 0L) {
+ /* right edge because of the end of pixmap */
+ Box.x2 = pPixmap->drawable.width;
+ REGION_RESET(pScreen, pTmpReg, &Box);
+ REGION_APPEND(pScreen, pReg, pTmpReg);
+ }
+ }
+
+ REGION_DESTROY(pScreen, pTmpReg);
+ XDestroyImage(ximage);
+
+ REGION_VALIDATE(pScreen, pReg, &overlap);
+
+ dmxSync(dmxScreen, FALSE);
+ return(pReg);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 17:32:55 +0000