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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/miext/shadow/shadow.c
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Checked in the following released items:
xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz
Diffstat (limited to 'xorg-server/miext/shadow/shadow.c')
-rw-r--r--xorg-server/miext/shadow/shadow.c248
1 files changed, 248 insertions, 0 deletions
diff --git a/xorg-server/miext/shadow/shadow.c b/xorg-server/miext/shadow/shadow.c
new file mode 100644
index 000000000..ef0df4091
--- /dev/null
+++ b/xorg-server/miext/shadow/shadow.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright © 2000 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdlib.h>
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "dixfontstr.h"
+#include "mi.h"
+#include "regionstr.h"
+#include "globals.h"
+#include "gcstruct.h"
+#include "shadow.h"
+
+DevPrivateKey shadowScrPrivateKey = &shadowScrPrivateKey;
+
+#define wrap(priv, real, mem) {\
+ priv->mem = real->mem; \
+ real->mem = shadow##mem; \
+}
+
+#define unwrap(priv, real, mem) {\
+ real->mem = priv->mem; \
+}
+
+static void
+shadowRedisplay(ScreenPtr pScreen)
+{
+ shadowBuf(pScreen);
+ RegionPtr pRegion;
+
+ if (!pBuf || !pBuf->pDamage || !pBuf->update)
+ return;
+ pRegion = DamageRegion(pBuf->pDamage);
+ if (REGION_NOTEMPTY(pScreen, pRegion)) {
+ (*pBuf->update)(pScreen, pBuf);
+ DamageEmpty(pBuf->pDamage);
+ }
+}
+
+static void
+shadowBlockHandler(pointer data, OSTimePtr pTimeout, pointer pRead)
+{
+ ScreenPtr pScreen = (ScreenPtr) data;
+
+ shadowRedisplay(pScreen);
+}
+
+static void
+shadowWakeupHandler(pointer data, int i, pointer LastSelectMask)
+{
+}
+
+static void
+shadowGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
+ unsigned int format, unsigned long planeMask, char *pdstLine)
+{
+ ScreenPtr pScreen = pDrawable->pScreen;
+ shadowBuf(pScreen);
+
+ /* Many apps use GetImage to sync with the visable frame buffer */
+ if (pDrawable->type == DRAWABLE_WINDOW)
+ shadowRedisplay(pScreen);
+ unwrap(pBuf, pScreen, GetImage);
+ pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
+ wrap(pBuf, pScreen, GetImage);
+}
+
+#define BACKWARDS_COMPATIBILITY
+
+static Bool
+shadowCloseScreen(int i, ScreenPtr pScreen)
+{
+ shadowBuf(pScreen);
+
+ unwrap(pBuf, pScreen, GetImage);
+ unwrap(pBuf, pScreen, CloseScreen);
+ shadowRemove(pScreen, pBuf->pPixmap);
+ DamageDestroy(pBuf->pDamage);
+#ifdef BACKWARDS_COMPATIBILITY
+ REGION_UNINIT(pScreen, &pBuf->damage); /* bc */
+#endif
+ if (pBuf->pPixmap)
+ pScreen->DestroyPixmap(pBuf->pPixmap);
+ xfree(pBuf);
+ return pScreen->CloseScreen(i, pScreen);
+}
+
+#ifdef BACKWARDS_COMPATIBILITY
+static void
+shadowReportFunc(DamagePtr pDamage, RegionPtr pRegion, void *closure)
+{
+ ScreenPtr pScreen = closure;
+ shadowBufPtr pBuf = (shadowBufPtr)
+ dixLookupPrivate(&pScreen->devPrivates, shadowScrPrivateKey);
+
+ /* Register the damaged region, use DamageReportNone below when we
+ * want to break BC below... */
+ REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage, pRegion);
+
+ /*
+ * BC hack. In 7.0 and earlier several drivers would inspect the
+ * 'damage' member directly, so we have to keep it existing.
+ */
+ REGION_COPY(pScreen, &pBuf->damage, pRegion);
+}
+#endif
+
+Bool
+shadowSetup(ScreenPtr pScreen)
+{
+ shadowBufPtr pBuf;
+
+ if (!DamageSetup(pScreen))
+ return FALSE;
+
+ pBuf = (shadowBufPtr) xalloc(sizeof(shadowBufRec));
+ if (!pBuf)
+ return FALSE;
+#ifdef BACKWARDS_COMPATIBILITY
+ pBuf->pDamage = DamageCreate((DamageReportFunc)shadowReportFunc,
+ (DamageDestroyFunc)NULL,
+ DamageReportRawRegion,
+ TRUE, pScreen, pScreen);
+#else
+ pBuf->pDamage = DamageCreate((DamageReportFunc)NULL,
+ (DamageDestroyFunc)NULL,
+ DamageReportNone,
+ TRUE, pScreen, pScreen);
+#endif
+ if (!pBuf->pDamage) {
+ xfree(pBuf);
+ return FALSE;
+ }
+
+ wrap(pBuf, pScreen, CloseScreen);
+ wrap(pBuf, pScreen, GetImage);
+ pBuf->update = 0;
+ pBuf->window = 0;
+ pBuf->pPixmap = 0;
+ pBuf->closure = 0;
+ pBuf->randr = 0;
+#ifdef BACKWARDS_COMPATIBILITY
+ REGION_NULL(pScreen, &pBuf->damage); /* bc */
+#endif
+
+ dixSetPrivate(&pScreen->devPrivates, shadowScrPrivateKey, pBuf);
+ return TRUE;
+}
+
+Bool
+shadowAdd(ScreenPtr pScreen, PixmapPtr pPixmap, ShadowUpdateProc update,
+ ShadowWindowProc window, int randr, void *closure)
+{
+ shadowBuf(pScreen);
+
+ if (!RegisterBlockAndWakeupHandlers(shadowBlockHandler, shadowWakeupHandler,
+ (pointer)pScreen))
+ return FALSE;
+
+ /*
+ * Map simple rotation values to bitmasks; fortunately,
+ * these are all unique
+ */
+ switch (randr) {
+ case 0:
+ randr = SHADOW_ROTATE_0;
+ break;
+ case 90:
+ randr = SHADOW_ROTATE_90;
+ break;
+ case 180:
+ randr = SHADOW_ROTATE_180;
+ break;
+ case 270:
+ randr = SHADOW_ROTATE_270;
+ break;
+ }
+ pBuf->update = update;
+ pBuf->window = window;
+ pBuf->randr = randr;
+ pBuf->closure = 0;
+ pBuf->pPixmap = pPixmap;
+ DamageRegister(&pPixmap->drawable, pBuf->pDamage);
+ return TRUE;
+}
+
+void
+shadowRemove(ScreenPtr pScreen, PixmapPtr pPixmap)
+{
+ shadowBuf(pScreen);
+
+ if (pBuf->pPixmap) {
+ DamageUnregister(&pBuf->pPixmap->drawable, pBuf->pDamage);
+ pBuf->update = 0;
+ pBuf->window = 0;
+ pBuf->randr = 0;
+ pBuf->closure = 0;
+ pBuf->pPixmap = 0;
+ }
+
+ RemoveBlockAndWakeupHandlers(shadowBlockHandler, shadowWakeupHandler,
+ (pointer) pScreen);
+}
+
+Bool
+shadowInit(ScreenPtr pScreen, ShadowUpdateProc update, ShadowWindowProc window)
+{
+ PixmapPtr pPixmap;
+
+ pPixmap = pScreen->CreatePixmap(pScreen, pScreen->width, pScreen->height,
+ pScreen->rootDepth, 0);
+ if (!pPixmap)
+ return FALSE;
+
+ if (!shadowSetup(pScreen)) {
+ pScreen->DestroyPixmap(pPixmap);
+ return FALSE;
+ }
+
+ shadowAdd(pScreen, pPixmap, update, window, SHADOW_ROTATE_0, 0);
+
+ return TRUE;
+}