Java example source code file (X11SurfaceData.c)
The X11SurfaceData.c Java example source code/*
* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "X11SurfaceData.h"
#include "GraphicsPrimitiveMgr.h"
#include "Region.h"
#include "Trace.h"
/* Needed to define intptr_t */
#include "gdefs.h"
#include "jni_util.h"
#include "jvm_md.h"
#include "awt_Component.h"
#include "awt_GraphicsEnv.h"
#include <dlfcn.h>
#ifndef HEADLESS
static JDgaLibInfo DgaLibInfoStub;
static JDgaLibInfo theJDgaInfo;
static JDgaLibInfo *pJDgaInfo = &DgaLibInfoStub;
/**
* This file contains support code for loops using the SurfaceData
* interface to talk to an X11 drawable from native code.
*/
typedef struct _X11RIPrivate {
jint lockType;
jint lockFlags;
XImage *img;
int x, y;
} X11RIPrivate;
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#define MIN(a,b) ((a) < (b) ? (a) : (b))
static LockFunc X11SD_Lock;
static GetRasInfoFunc X11SD_GetRasInfo;
static UnlockFunc X11SD_Unlock;
static DisposeFunc X11SD_Dispose;
static GetPixmapBgFunc X11SD_GetPixmapWithBg;
static ReleasePixmapBgFunc X11SD_ReleasePixmapWithBg;
extern int XShmAttachXErrHandler(Display *display, XErrorEvent *xerr);
extern AwtGraphicsConfigDataPtr
getGraphicsConfigFromComponentPeer(JNIEnv *env, jobject this);
extern struct X11GraphicsConfigIDs x11GraphicsConfigIDs;
static int X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
X11SDOps *xsdo);
static int X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
X11SDOps *xsdo);
static void X11SD_SwapBytes(X11SDOps *xsdo, XImage *img, int depth, int bpp);
static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
SurfaceDataBounds *bounds,
jint lockFlags);
extern jfieldID validID;
static int nativeByteOrder;
static jboolean dgaAvailable = JNI_FALSE;
static jboolean useDGAWithPixmaps = JNI_FALSE;
static jclass xorCompClass;
jint useMitShmExt = CANT_USE_MITSHM;
jint useMitShmPixmaps = CANT_USE_MITSHM;
jint forceSharedPixmaps = JNI_FALSE;
int mitShmPermissionMask = MITSHM_PERM_OWNER;
/* Cached shared image, one for all surface datas. */
static XImage * cachedXImage;
#endif /* !HEADLESS */
jboolean XShared_initIDs(JNIEnv *env, jboolean allowShmPixmaps)
{
#ifndef HEADLESS
union {
char c[4];
int i;
} endian;
endian.i = 0xff000000;
nativeByteOrder = (endian.c[0]) ? MSBFirst : LSBFirst;
dgaAvailable = JNI_FALSE;
cachedXImage = NULL;
if (sizeof(X11RIPrivate) > SD_RASINFO_PRIVATE_SIZE) {
JNU_ThrowInternalError(env, "Private RasInfo structure too large!");
return JNI_FALSE;
}
#ifdef MITSHM
if (getenv("NO_AWT_MITSHM") == NULL &&
getenv("NO_J2D_MITSHM") == NULL) {
char * force;
char * permission = getenv("J2D_MITSHM_PERMISSION");
if (permission != NULL) {
if (strcmp(permission, "common") == 0) {
mitShmPermissionMask = MITSHM_PERM_COMMON;
}
}
TryInitMITShm(env, &useMitShmExt, &useMitShmPixmaps);
if(allowShmPixmaps) {
useMitShmPixmaps = (useMitShmPixmaps == CAN_USE_MITSHM);
force = getenv("J2D_PIXMAPS");
if (force != NULL) {
if (useMitShmPixmaps && (strcmp(force, "shared") == 0)) {
forceSharedPixmaps = JNI_TRUE;
} else if (strcmp(force, "server") == 0) {
useMitShmPixmaps = JNI_FALSE;
}
}
}else {
useMitShmPixmaps = JNI_FALSE;
}
}
#endif /* MITSHM */
#endif /* !HEADLESS */
return JNI_TRUE;
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: initIDs
* Signature: (Ljava/lang/Class;Z)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_X11SurfaceData_initIDs(JNIEnv *env, jclass xsd,
jclass XORComp, jboolean tryDGA)
{
#ifndef HEADLESS
if(XShared_initIDs(env, JNI_TRUE))
{
void *lib = 0;
xorCompClass = (*env)->NewGlobalRef(env, XORComp);
if (tryDGA && (getenv("NO_J2D_DGA") == NULL)) {
/* we use RTLD_NOW because of bug 4032715 */
lib = dlopen(JNI_LIB_NAME("sunwjdga"), RTLD_NOW);
}
if (lib != NULL) {
JDgaStatus ret = JDGA_FAILED;
void *sym = dlsym(lib, "JDgaLibInit");
if (sym != NULL) {
theJDgaInfo.display = awt_display;
AWT_LOCK();
ret = (*(JDgaLibInitFunc *)sym)(env, &theJDgaInfo);
AWT_UNLOCK();
}
if (ret == JDGA_SUCCESS) {
pJDgaInfo = &theJDgaInfo;
dgaAvailable = JNI_TRUE;
useDGAWithPixmaps = (getenv("USE_DGA_PIXMAPS") != NULL);
} else {
dlclose(lib);
lib = NULL;
}
}
}
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: isDrawableValid
* Signature: ()Z
*/
JNIEXPORT jboolean JNICALL
Java_sun_java2d_x11_XSurfaceData_isDrawableValid(JNIEnv *env, jobject this)
{
jboolean ret = JNI_FALSE;
#ifndef HEADLESS
X11SDOps *xsdo = X11SurfaceData_GetOps(env, this);
AWT_LOCK();
if (xsdo->drawable != 0 || X11SD_InitWindow(env, xsdo) == SD_SUCCESS) {
ret = JNI_TRUE;
}
AWT_UNLOCK();
#endif /* !HEADLESS */
return ret;
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: isShmPMAvailable
* Signature: ()Z
*/
JNIEXPORT jboolean JNICALL
Java_sun_java2d_x11_X11SurfaceData_isShmPMAvailable(JNIEnv *env, jobject this)
{
#if defined(HEADLESS) || !defined(MITSHM)
return JNI_FALSE;
#else
return (jboolean)useMitShmPixmaps;
#endif /* HEADLESS, MITSHM */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: isDgaAvailable
* Signature: ()Z
*/
JNIEXPORT jboolean JNICALL
Java_sun_java2d_x11_X11SurfaceData_isDgaAvailable(JNIEnv *env, jobject this)
{
#if defined(HEADLESS) || defined(__linux__)
return JNI_FALSE;
#else
return dgaAvailable;
#endif /* HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: initOps
* Signature: (Ljava/lang/Object;I)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_XSurfaceData_initOps(JNIEnv *env, jobject xsd,
jobject peer,
jobject graphicsConfig, jint depth)
{
#ifndef HEADLESS
X11SDOps *xsdo = (X11SDOps*)SurfaceData_InitOps(env, xsd, sizeof(X11SDOps));
jboolean hasException;
if (xsdo == NULL) {
JNU_ThrowOutOfMemoryError(env, "Initialization of SurfaceData failed.");
return;
}
xsdo->sdOps.Lock = X11SD_Lock;
xsdo->sdOps.GetRasInfo = X11SD_GetRasInfo;
xsdo->sdOps.Unlock = X11SD_Unlock;
xsdo->sdOps.Dispose = X11SD_Dispose;
xsdo->GetPixmapWithBg = X11SD_GetPixmapWithBg;
xsdo->ReleasePixmapWithBg = X11SD_ReleasePixmapWithBg;
xsdo->widget = NULL;
if (peer != NULL) {
xsdo->drawable = JNU_CallMethodByName(env, &hasException, peer, "getWindow", "()J").j;
if (hasException) {
return;
}
} else {
xsdo->drawable = 0;
}
xsdo->depth = depth;
xsdo->dgaAvailable = dgaAvailable;
xsdo->isPixmap = JNI_FALSE;
xsdo->bitmask = 0;
xsdo->bgPixel = 0;
xsdo->isBgInitialized = JNI_FALSE;
#ifdef MITSHM
xsdo->shmPMData.shmSegInfo = NULL;
xsdo->shmPMData.xRequestSent = JNI_FALSE;
xsdo->shmPMData.pmSize = 0;
xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
xsdo->shmPMData.pixmap = 0;
xsdo->shmPMData.shmPixmap = 0;
xsdo->shmPMData.numBltsSinceRead = 0;
xsdo->shmPMData.pixelsReadSinceBlt = 0;
xsdo->shmPMData.numBltsThreshold = 2;
#endif /* MITSHM */
xsdo->configData = (AwtGraphicsConfigDataPtr)
JNU_GetLongFieldAsPtr(env,
graphicsConfig,
x11GraphicsConfigIDs.aData);
if (xsdo->configData == NULL) {
JNU_ThrowNullPointerException(env,
"Native GraphicsConfig data block missing");
return;
}
if (depth > 12) {
xsdo->pixelmask = (xsdo->configData->awt_visInfo.red_mask |
xsdo->configData->awt_visInfo.green_mask |
xsdo->configData->awt_visInfo.blue_mask);
} else if (depth == 12) {
xsdo->pixelmask = 0xfff;
} else {
xsdo->pixelmask = 0xff;
}
xsdo->xrPic = None;
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: flushNativeSurface
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_XSurfaceData_flushNativeSurface(JNIEnv *env, jobject xsd)
{
#ifndef HEADLESS
SurfaceDataOps *ops = SurfaceData_GetOps(env, xsd);
if (ops != NULL) {
X11SD_Dispose(env, ops);
}
#endif /* !HEADLESS */
}
JNIEXPORT X11SDOps * JNICALL
X11SurfaceData_GetOps(JNIEnv *env, jobject sData)
{
#ifdef HEADLESS
return NULL;
#else
SurfaceDataOps *ops = SurfaceData_GetOps(env, sData);
if (ops != NULL && ops->Lock != X11SD_Lock) {
SurfaceData_ThrowInvalidPipeException(env, "not an X11 SurfaceData");
ops = NULL;
}
return (X11SDOps *) ops;
#endif /* !HEADLESS */
}
/*
* Method for disposing X11SD-specific data
*/
static void
X11SD_Dispose(JNIEnv *env, SurfaceDataOps *ops)
{
#ifndef HEADLESS
/* ops is assumed non-null as it is checked in SurfaceData_DisposeOps */
X11SDOps * xsdo = (X11SDOps*)ops;
AWT_LOCK();
xsdo->invalid = JNI_TRUE;
if (xsdo->xrPic != None) {
XRenderFreePicture(awt_display, xsdo->xrPic);
xsdo->xrPic = None;
}
if (xsdo->isPixmap == JNI_TRUE && xsdo->drawable != 0) {
#ifdef MITSHM
if (xsdo->shmPMData.shmSegInfo != NULL) {
X11SD_DropSharedSegment(xsdo->shmPMData.shmSegInfo);
xsdo->shmPMData.shmSegInfo = NULL;
}
if (xsdo->shmPMData.pixmap) {
XFreePixmap(awt_display, xsdo->shmPMData.pixmap);
xsdo->shmPMData.pixmap = 0;
}
if (xsdo->shmPMData.shmPixmap) {
XFreePixmap(awt_display, xsdo->shmPMData.shmPixmap);
xsdo->shmPMData.shmPixmap = 0;
}
#else
XFreePixmap(awt_display, xsdo->drawable);
#endif /* MITSHM */
xsdo->drawable = 0;
}
if (xsdo->bitmask != 0) {
XFreePixmap(awt_display, xsdo->bitmask);
xsdo->bitmask = 0;
}
if (xsdo->javaGC != NULL) {
XFreeGC(awt_display, xsdo->javaGC);
xsdo->javaGC = NULL;
}
if (xsdo->cachedGC != NULL) {
XFreeGC(awt_display, xsdo->cachedGC);
xsdo->cachedGC = NULL;
}
if(xsdo->xrPic != None) {
XRenderFreePicture(awt_display, xsdo->xrPic);
}
AWT_UNLOCK();
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: setInvalid
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_XSurfaceData_setInvalid(JNIEnv *env, jobject xsd)
{
#ifndef HEADLESS
X11SDOps *xsdo = (X11SDOps *) SurfaceData_GetOps(env, xsd);
if (xsdo != NULL) {
xsdo->invalid = JNI_TRUE;
}
#endif /* !HEADLESS */
}
jboolean XShared_initSurface(JNIEnv *env, X11SDOps *xsdo, jint depth, jint width, jint height, jlong drawable)
{
#ifndef HEADLESS
if (drawable != (jlong)0) {
/* Double-buffering */
xsdo->drawable = drawable;
xsdo->isPixmap = JNI_FALSE;
} else {
xsdo->isPixmap = JNI_TRUE;
/* REMIND: workaround for bug 4420220 on pgx32 boards:
don't use DGA with pixmaps unless USE_DGA_PIXMAPS is set.
*/
xsdo->dgaAvailable = useDGAWithPixmaps;
xsdo->pmWidth = width;
xsdo->pmHeight = height;
#ifdef MITSHM
xsdo->shmPMData.pmSize = width * height * depth;
xsdo->shmPMData.pixelsReadThreshold = width * height / 8;
if (forceSharedPixmaps) {
AWT_LOCK();
xsdo->drawable = X11SD_CreateSharedPixmap(xsdo);
AWT_UNLOCK();
if (xsdo->drawable) {
xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
xsdo->shmPMData.shmPixmap = xsdo->drawable;
return JNI_TRUE;
}
}
#endif /* MITSHM */
AWT_LOCK();
xsdo->drawable =
XCreatePixmap(awt_display,
RootWindow(awt_display,
xsdo->configData->awt_visInfo.screen),
width, height, depth);
AWT_UNLOCK();
#ifdef MITSHM
xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
xsdo->shmPMData.pixmap = xsdo->drawable;
#endif /* MITSHM */
}
if (xsdo->drawable == 0) {
JNU_ThrowOutOfMemoryError(env,
"Can't create offscreen surface");
return JNI_FALSE;
}
#endif /* !HEADLESS */
return JNI_TRUE;
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: initSurface
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_X11SurfaceData_initSurface(JNIEnv *env, jclass xsd,
jint depth,
jint width, jint height,
jlong drawable)
{
#ifndef HEADLESS
X11SDOps *xsdo = X11SurfaceData_GetOps(env, xsd);
if (xsdo == NULL) {
return;
}
if (xsdo->configData->awt_cmap == (Colormap)NULL) {
awtJNI_CreateColorData(env, xsdo->configData, 1);
}
/* color_data will be initialized in awtJNI_CreateColorData for
8-bit visuals */
xsdo->cData = xsdo->configData->color_data;
XShared_initSurface(env, xsdo, depth, width, height, drawable);
xsdo->xrPic = NULL;
#endif /* !HEADLESS */
}
#ifndef HEADLESS
#ifdef MITSHM
void X11SD_DropSharedSegment(XShmSegmentInfo *shminfo)
{
if (shminfo != NULL) {
XShmDetach(awt_display, shminfo);
shmdt(shminfo->shmaddr);
/* REMIND: we don't need shmctl(shminfo->shmid, IPC_RMID, 0); here. */
/* Check X11SD_CreateSharedImage() for the explanation */
}
}
XImage* X11SD_CreateSharedImage(X11SDOps *xsdo,
jint width, jint height)
{
XImage *img = NULL;
XShmSegmentInfo *shminfo;
shminfo = malloc(sizeof(XShmSegmentInfo));
if (shminfo == NULL) {
return NULL;
}
memset(shminfo, 0, sizeof(XShmSegmentInfo));
img = XShmCreateImage(awt_display, xsdo->configData->awt_visInfo.visual,
xsdo->depth, ZPixmap, NULL, shminfo,
width, height);
if (img == NULL) {
free((void *)shminfo);
return NULL;
}
shminfo->shmid =
shmget(IPC_PRIVATE, height * img->bytes_per_line,
IPC_CREAT|mitShmPermissionMask);
if (shminfo->shmid < 0) {
J2dRlsTraceLn1(J2D_TRACE_ERROR,
"X11SD_SetupSharedSegment shmget has failed: %s",
strerror(errno));
free((void *)shminfo);
XDestroyImage(img);
return NULL;
}
shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0);
if (shminfo->shmaddr == ((char *) -1)) {
shmctl(shminfo->shmid, IPC_RMID, 0);
J2dRlsTraceLn1(J2D_TRACE_ERROR,
"X11SD_SetupSharedSegment shmat has failed: %s",
strerror(errno));
free((void *)shminfo);
XDestroyImage(img);
return NULL;
}
shminfo->readOnly = False;
resetXShmAttachFailed();
EXEC_WITH_XERROR_HANDLER(XShmAttachXErrHandler,
XShmAttach(awt_display, shminfo));
/*
* Once the XSync round trip has finished then we
* can get rid of the id so that this segment does not stick
* around after we go away, holding system resources.
*/
shmctl(shminfo->shmid, IPC_RMID, 0);
if (isXShmAttachFailed() == JNI_TRUE) {
J2dRlsTraceLn1(J2D_TRACE_ERROR,
"X11SD_SetupSharedSegment XShmAttach has failed: %s",
strerror(errno));
shmdt(shminfo->shmaddr);
free((void *)shminfo);
XDestroyImage(img);
return NULL;
}
img->data = shminfo->shmaddr;
img->obdata = (char *)shminfo;
return img;
}
XImage* X11SD_GetSharedImage(X11SDOps *xsdo, jint width, jint height,
jint maxWidth, jint maxHeight, jboolean readBits)
{
XImage * retImage = NULL;
if (cachedXImage != NULL &&
X11SD_CachedXImageFits(width, height, maxWidth, maxHeight,
xsdo->depth, readBits)) {
/* sync so previous data gets flushed */
XSync(awt_display, False);
retImage = cachedXImage;
cachedXImage = (XImage *)NULL;
} else if (width * height * xsdo->depth > 0x10000) {
retImage = X11SD_CreateSharedImage(xsdo, width, height);
}
return retImage;
}
Drawable X11SD_CreateSharedPixmap(X11SDOps *xsdo)
{
XShmSegmentInfo *shminfo;
XImage *img = NULL;
Drawable pixmap;
int scan;
int width = xsdo->pmWidth;
int height = xsdo->pmHeight;
if (xsdo->shmPMData.pmSize < 0x10000) {
/* only use shared mem pixmaps for relatively big images */
return 0;
}
/* need to create shared(!) image to get bytes_per_line */
img = X11SD_CreateSharedImage(xsdo, width, height);
if (img == NULL) {
return 0;
}
scan = img->bytes_per_line;
shminfo = (XShmSegmentInfo*)img->obdata;
XFree(img);
pixmap =
XShmCreatePixmap(awt_display,
RootWindow(awt_display,
xsdo->configData->awt_visInfo.screen),
shminfo->shmaddr, shminfo,
width, height, xsdo->depth);
if (pixmap == 0) {
X11SD_DropSharedSegment(shminfo);
return 0;
}
xsdo->shmPMData.shmSegInfo = shminfo;
xsdo->shmPMData.bytesPerLine = scan;
return pixmap;
}
void X11SD_PuntPixmap(X11SDOps *xsdo, jint width, jint height)
{
if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
return;
}
/* we wouldn't be here if it's a shared pixmap, so no check
* for !usingShmPixmap.
*/
xsdo->shmPMData.numBltsSinceRead = 0;
xsdo->shmPMData.pixelsReadSinceBlt += width * height;
if (xsdo->shmPMData.pixelsReadSinceBlt >
xsdo->shmPMData.pixelsReadThreshold) {
if (!xsdo->shmPMData.shmPixmap) {
xsdo->shmPMData.shmPixmap =
X11SD_CreateSharedPixmap(xsdo);
}
if (xsdo->shmPMData.shmPixmap) {
GC xgc = XCreateGC(awt_display, xsdo->shmPMData.shmPixmap, 0L, NULL);
if (xgc != NULL) {
xsdo->shmPMData.usingShmPixmap = JNI_TRUE;
xsdo->drawable = xsdo->shmPMData.shmPixmap;
XCopyArea(awt_display,
xsdo->shmPMData.pixmap, xsdo->drawable, xgc,
0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
XSync(awt_display, False);
xsdo->shmPMData.xRequestSent = JNI_FALSE;
XFreeGC(awt_display, xgc);
}
}
}
}
void X11SD_UnPuntPixmap(X11SDOps *xsdo)
{
if (useMitShmPixmaps != CAN_USE_MITSHM || forceSharedPixmaps) {
return;
}
xsdo->shmPMData.pixelsReadSinceBlt = 0;
if (xsdo->shmPMData.numBltsSinceRead >=
xsdo->shmPMData.numBltsThreshold)
{
if (xsdo->shmPMData.usingShmPixmap) {
if (!xsdo->shmPMData.pixmap) {
xsdo->shmPMData.pixmap =
XCreatePixmap(awt_display,
RootWindow(awt_display,
xsdo->configData->awt_visInfo.screen),
xsdo->pmWidth, xsdo->pmHeight, xsdo->depth);
}
if (xsdo->shmPMData.pixmap) {
GC xgc = XCreateGC(awt_display, xsdo->shmPMData.pixmap, 0L, NULL);
if (xgc != NULL) {
xsdo->drawable = xsdo->shmPMData.pixmap;
XCopyArea(awt_display,
xsdo->shmPMData.shmPixmap, xsdo->drawable, xgc,
0, 0, xsdo->pmWidth, xsdo->pmHeight, 0, 0);
XSync(awt_display, False);
XFreeGC(awt_display, xgc);
xsdo->shmPMData.xRequestSent = JNI_FALSE;
xsdo->shmPMData.usingShmPixmap = JNI_FALSE;
xsdo->shmPMData.numBltsThreshold *= 2;
}
}
}
} else {
xsdo->shmPMData.numBltsSinceRead++;
}
}
/**
* Determines if the cached image can be used for current operation.
* If the image is to be used to be read into by XShmGetImage,
* it must be close enough to avoid excessive reading from the screen;
* otherwise it should just be at least the size requested.
*/
jboolean X11SD_CachedXImageFits(jint width, jint height, jint maxWidth,
jint maxHeight, jint depth, jboolean readBits)
{
/* we assume here that the cached image exists */
jint imgWidth = cachedXImage->width;
jint imgHeight = cachedXImage->height;
if (imgWidth < width || imgHeight < height || depth != cachedXImage->depth) {
/* doesn't fit if any of the cached image dimensions is smaller
or the depths are different */
return JNI_FALSE;
}
if (!readBits) {
/* Not reading from this image, so any image at least of the
size requested will do */
return JNI_TRUE;
}
if ((imgWidth < width + 64) && (imgHeight < height + 64)
&& imgWidth <= maxWidth && imgHeight <= maxHeight)
{
/* Cached image's width/height shouldn't be more than 64 pixels
* larger than requested, because the region in XShmGetImage
* can't be specified and we don't want to read too much.
* Furthermore it has to be smaller than maxWidth/Height
* so drawables are not read out of bounds.
*/
return JNI_TRUE;
}
return JNI_FALSE;
}
#endif /* MITSHM */
jint X11SD_InitWindow(JNIEnv *env, X11SDOps *xsdo)
{
if (xsdo->isPixmap == JNI_TRUE) {
return SD_FAILURE;
}
xsdo->cData = xsdo->configData->color_data;
return SD_SUCCESS;
}
static jint X11SD_Lock(JNIEnv *env,
SurfaceDataOps *ops,
SurfaceDataRasInfo *pRasInfo,
jint lockflags)
{
X11SDOps *xsdo = (X11SDOps *) ops;
X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
int ret = SD_SUCCESS;
AWT_LOCK();
if (xsdo->invalid) {
AWT_UNLOCK();
SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
return SD_FAILURE;
}
xsdo->cData = xsdo->configData->color_data;
if (xsdo->drawable == 0 && X11SD_InitWindow(env, xsdo) == SD_FAILURE) {
AWT_UNLOCK();
return SD_FAILURE;
}
if ((lockflags & SD_LOCK_LUT) != 0 &&
(xsdo->cData == NULL ||
xsdo->cData->awt_icmLUT == NULL))
{
AWT_UNLOCK();
JNU_ThrowNullPointerException(env, "colormap lookup table");
return SD_FAILURE;
}
if ((lockflags & SD_LOCK_INVCOLOR) != 0 &&
(xsdo->cData == NULL ||
xsdo->cData->img_clr_tbl == NULL ||
xsdo->cData->img_oda_red == NULL ||
xsdo->cData->img_oda_green == NULL ||
xsdo->cData->img_oda_blue == NULL))
{
AWT_UNLOCK();
JNU_ThrowNullPointerException(env, "inverse colormap lookup table");
return SD_FAILURE;
}
if ((lockflags & SD_LOCK_INVGRAY) != 0 &&
(xsdo->cData == NULL ||
xsdo->cData->pGrayInverseLutData == NULL))
{
AWT_UNLOCK();
JNU_ThrowNullPointerException(env, "inverse gray lookup table");
return SD_FAILURE;
}
if (xsdo->dgaAvailable && (lockflags & (SD_LOCK_RD_WR))) {
int dgaret;
dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
xsdo->drawable, &xsdo->surfInfo,
pRasInfo->bounds.x1,
pRasInfo->bounds.y1,
pRasInfo->bounds.x2,
pRasInfo->bounds.y2);
if (dgaret == JDGA_SUCCESS) {
int wx = xsdo->surfInfo.window.lox;
int wy = xsdo->surfInfo.window.loy;
pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
xpriv->lockType = X11SD_LOCK_BY_DGA;
xpriv->lockFlags = lockflags;
return SD_SUCCESS;
} else if (dgaret == JDGA_UNAVAILABLE) {
xsdo->dgaAvailable = JNI_FALSE;
}
}
if (lockflags & SD_LOCK_RD_WR) {
if (lockflags & SD_LOCK_FASTEST) {
ret = SD_SLOWLOCK;
}
xpriv->lockType = X11SD_LOCK_BY_XIMAGE;
if (xsdo->isPixmap) {
#ifdef MITSHM
if (xsdo->shmPMData.usingShmPixmap) {
xpriv->lockType = X11SD_LOCK_BY_SHMEM;
}
#endif /* MITSHM */
if (pRasInfo->bounds.x1 < 0) {
pRasInfo->bounds.x1 = 0;
}
if (pRasInfo->bounds.y1 < 0) {
pRasInfo->bounds.y1 = 0;
}
if (pRasInfo->bounds.x2 > xsdo->pmWidth) {
pRasInfo->bounds.x2 = xsdo->pmWidth;
}
if (pRasInfo->bounds.y2 > xsdo->pmHeight) {
pRasInfo->bounds.y2 = xsdo->pmHeight;
}
}
} else {
/* They didn't lock for anything - we won't give them anything */
xpriv->lockType = X11SD_LOCK_BY_NULL;
}
xpriv->lockFlags = lockflags;
xpriv->img = NULL;
return ret;
/* AWT_UNLOCK() called in Unlock */
}
static void X11SD_GetRasInfo(JNIEnv *env,
SurfaceDataOps *ops,
SurfaceDataRasInfo *pRasInfo)
{
X11SDOps *xsdo = (X11SDOps *) ops;
X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
jint lockFlags = xpriv->lockFlags;
jint depth = xsdo->depth;
int mult = xsdo->configData->pixelStride;
if (xsdo->dgaAvailable &&
xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
(lockFlags & SD_LOCK_FASTEST))
{
/* Try one more time to use DGA (now with smaller bounds)... */
int dgaret;
dgaret = (*pJDgaInfo->pGetLock)(env, awt_display, &xsdo->dgaDev,
xsdo->drawable, &xsdo->surfInfo,
pRasInfo->bounds.x1,
pRasInfo->bounds.y1,
pRasInfo->bounds.x2,
pRasInfo->bounds.y2);
if (dgaret == JDGA_SUCCESS) {
int wx = xsdo->surfInfo.window.lox;
int wy = xsdo->surfInfo.window.loy;
pRasInfo->bounds.x1 = xsdo->surfInfo.visible.lox - wx;
pRasInfo->bounds.y1 = xsdo->surfInfo.visible.loy - wy;
pRasInfo->bounds.x2 = xsdo->surfInfo.visible.hix - wx;
pRasInfo->bounds.y2 = xsdo->surfInfo.visible.hiy - wy;
xpriv->lockType = X11SD_LOCK_BY_DGA;
} else if (dgaret == JDGA_UNAVAILABLE) {
xsdo->dgaAvailable = JNI_FALSE;
}
}
if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
int scan = xsdo->surfInfo.surfaceScan;
int wx = xsdo->surfInfo.window.lox;
int wy = xsdo->surfInfo.window.loy;
pRasInfo->rasBase =
(void *)(((uintptr_t) xsdo->surfInfo.basePtr) + (scan*wy + wx) * mult);
pRasInfo->pixelStride = mult;
pRasInfo->pixelBitOffset = 0;
pRasInfo->scanStride = scan * mult;
#ifdef MITSHM
} else if (xpriv->lockType == X11SD_LOCK_BY_SHMEM) {
if (xsdo->shmPMData.xRequestSent == JNI_TRUE) {
/* need to sync before using shared mem pixmap
if any x calls were issued for this pixmap */
XSync(awt_display, False);
xsdo->shmPMData.xRequestSent = JNI_FALSE;
}
xpriv->x = pRasInfo->bounds.x1;
xpriv->y = pRasInfo->bounds.y1;
pRasInfo->rasBase = xsdo->shmPMData.shmSegInfo->shmaddr;
pRasInfo->pixelStride = mult;
pRasInfo->pixelBitOffset = 0;
pRasInfo->scanStride = xsdo->shmPMData.bytesPerLine;
#endif /* MITSHM */
} else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE) {
int x, y, w, h;
x = pRasInfo->bounds.x1;
y = pRasInfo->bounds.y1;
w = pRasInfo->bounds.x2 - x;
h = pRasInfo->bounds.y2 - y;
xpriv->img = X11SD_GetImage(env, xsdo, &pRasInfo->bounds, lockFlags);
if (xpriv->img) {
int scan = xpriv->img->bytes_per_line;
xpriv->x = x;
xpriv->y = y;
pRasInfo->rasBase = xpriv->img->data - x * mult - y * scan;
pRasInfo->pixelStride = mult;
pRasInfo->pixelBitOffset = 0;
pRasInfo->scanStride = scan;
} else {
pRasInfo->rasBase = NULL;
pRasInfo->pixelStride = 0;
pRasInfo->pixelBitOffset = 0;
pRasInfo->scanStride = 0;
}
} else {
/* They didn't lock for anything - we won't give them anything */
pRasInfo->rasBase = NULL;
pRasInfo->pixelStride = 0;
pRasInfo->pixelBitOffset = 0;
pRasInfo->scanStride = 0;
}
if (lockFlags & SD_LOCK_LUT) {
pRasInfo->lutBase = (jint *) xsdo->cData->awt_icmLUT;
pRasInfo->lutSize = xsdo->cData->awt_numICMcolors;
} else {
pRasInfo->lutBase = NULL;
pRasInfo->lutSize = 0;
}
if (lockFlags & SD_LOCK_INVCOLOR) {
pRasInfo->invColorTable = xsdo->cData->img_clr_tbl;
pRasInfo->redErrTable = xsdo->cData->img_oda_red;
pRasInfo->grnErrTable = xsdo->cData->img_oda_green;
pRasInfo->bluErrTable = xsdo->cData->img_oda_blue;
} else {
pRasInfo->invColorTable = NULL;
pRasInfo->redErrTable = NULL;
pRasInfo->grnErrTable = NULL;
pRasInfo->bluErrTable = NULL;
}
if (lockFlags & SD_LOCK_INVGRAY) {
pRasInfo->invGrayTable = xsdo->cData->pGrayInverseLutData;
} else {
pRasInfo->invGrayTable = NULL;
}
}
static void X11SD_Unlock(JNIEnv *env,
SurfaceDataOps *ops,
SurfaceDataRasInfo *pRasInfo)
{
X11SDOps *xsdo = (X11SDOps *) ops;
X11RIPrivate *xpriv = (X11RIPrivate *) &(pRasInfo->priv);
if (xpriv->lockType == X11SD_LOCK_BY_DGA) {
(*pJDgaInfo->pReleaseLock)(env, xsdo->dgaDev, xsdo->drawable);
} else if (xpriv->lockType == X11SD_LOCK_BY_XIMAGE &&
xpriv->img != NULL)
{
if (xpriv->lockFlags & SD_LOCK_WRITE) {
int x = xpriv->x;
int y = xpriv->y;
int w = pRasInfo->bounds.x2 - x;
int h = pRasInfo->bounds.y2 - y;
Drawable drawable = xsdo->drawable;
GC xgc = xsdo->cachedGC;
if (xgc == NULL) {
xsdo->cachedGC = xgc =
XCreateGC(awt_display, drawable, 0L, NULL);
}
if (xpriv->img->byte_order != nativeByteOrder) {
/* switching bytes back in 24 and 32 bpp cases. */
/* For 16 bit XLib will switch for us. */
if (xsdo->depth > 16) {
X11SD_SwapBytes(xsdo, xpriv->img, xsdo->depth,
xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
}
}
#ifdef MITSHM
if (xpriv->img->obdata != NULL) {
XShmPutImage(awt_display, drawable, xgc,
xpriv->img, 0, 0, x, y, w, h, False);
XFlush(awt_display);
} else {
XPutImage(awt_display, drawable, xgc,
xpriv->img, 0, 0, x, y, w, h);
}
if (xsdo->shmPMData.usingShmPixmap) {
xsdo->shmPMData.xRequestSent = JNI_TRUE;
}
#else
XPutImage(awt_display, drawable, xgc,
xpriv->img, 0, 0, x, y, w, h);
#endif /* MITSHM */
(*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, drawable);
}
X11SD_DisposeOrCacheXImage(xpriv->img);
xpriv->img = (XImage *)NULL;
}
/* the background pixel is not valid anymore */
if (xpriv->lockFlags & SD_LOCK_WRITE) {
xsdo->isBgInitialized = JNI_FALSE;
}
xpriv->lockType = X11SD_LOCK_UNLOCKED;
AWT_UNLOCK();
}
static int
X11SD_ClipToRoot(SurfaceDataBounds *b, SurfaceDataBounds *bounds,
X11SDOps *xsdo)
{
Position x1=0, y1=0, x2=0, y2=0;
int tmpx, tmpy;
Window tmpchild;
Window window = (Window)(xsdo->drawable); /* is always a Window */
XWindowAttributes winAttr;
Status status = XGetWindowAttributes(awt_display, window, &winAttr);
if (status == 0) {
/* Failure, X window no longer valid. */
return FALSE;
}
if (!XTranslateCoordinates(awt_display, window,
RootWindowOfScreen(winAttr.screen),
0, 0, &tmpx, &tmpy, &tmpchild)) {
return FALSE;
}
x1 = -(x1 + tmpx);
y1 = -(y1 + tmpy);
x2 = x1 + DisplayWidth(awt_display, xsdo->configData->awt_visInfo.screen);
y2 = y1 + DisplayHeight(awt_display, xsdo->configData->awt_visInfo.screen);
x1 = MAX(bounds->x1, x1);
y1 = MAX(bounds->y1, y1);
x2 = MIN(bounds->x2, x2);
y2 = MIN(bounds->y2, y2);
if ((x1 >= x2) || (y1 >= y2)) {
return FALSE;
}
b->x1 = x1;
b->y1 = y1;
b->x2 = x2;
b->y2 = y2;
return TRUE;
}
/*
* x1, y1, x2, y2 - our rectangle in the coord system of
* the widget
* px1, xy1, px2, py2 - current parent rect coords in the
* same system
*/
static int
X11SD_FindClip(SurfaceDataBounds *b, SurfaceDataBounds *bounds, X11SDOps *xsdo)
{
return TRUE;
}
static void
X11SD_SwapBytes(X11SDOps *xsdo, XImage * img, int depth, int bpp) {
int lengthInBytes = img->height * img->bytes_per_line;
int i;
switch (depth) {
case 12:
case 15:
case 16:
{
/* AB -> BA */
unsigned short *d = (unsigned short *)img->data;
unsigned short t;
for (i = 0; i < lengthInBytes/2; i++) {
t = *d;
*d++ = (t >> 8) | (t << 8);
}
img->byte_order = nativeByteOrder;
img->bitmap_bit_order = nativeByteOrder;
break;
}
case 24:
{
/* ABC -> CBA */
if (bpp == 24) {
// 4517321: Only swap if we have a "real" ThreeByteBgr
// visual (denoted by a red_mask of 0xff). Due to ambiguity
// in the X11 spec, it appears that the swap is not required
// on Linux configurations that use 24 bits per pixel (denoted
// by a red_mask of 0xff0000).
if (xsdo->configData->awt_visInfo.red_mask == 0xff) {
int scan = img->bytes_per_line;
unsigned char *d = (unsigned char *) img->data;
unsigned char *d1;
unsigned int t;
int j;
for (i = 0; i < img->height; i++, d += scan) {
d1 = d;
for (j = 0; j < img->width; j++, d1 += 3) {
/* not obvious opt from XLib src */
t = d1[0]; d1[0] = d1[2]; d1[2] = t;
}
}
}
break;
}
}
/* FALL THROUGH for 32-bit case */
case 32:
{
/* ABCD -> DCBA */
unsigned int *d = (unsigned int *) img->data;
unsigned int t;
for (i = 0; i < lengthInBytes/4; i++) {
t = *d;
*d++ = ((t >> 24) |
((t >> 8) & 0xff00) |
((t & 0xff00) << 8) |
(t << 24));
}
break;
}
}
}
static XImage * X11SD_GetImage(JNIEnv *env, X11SDOps *xsdo,
SurfaceDataBounds *bounds,
jint lockFlags)
{
int x, y, w, h, maxWidth, maxHeight;
int scan;
XImage * img = NULL;
Drawable drawable;
int depth = xsdo->depth;
int mult = xsdo->configData->pixelStride;
int pad = (mult == 3) ? 32 : mult * 8; // pad must be 8, 16, or 32
jboolean readBits = lockFlags & SD_LOCK_NEED_PIXELS;
x = bounds->x1;
y = bounds->y1;
w = bounds->x2 - x;
h = bounds->y2 - y;
#ifdef MITSHM
if (useMitShmExt == CAN_USE_MITSHM) {
if (xsdo->isPixmap) {
if (readBits) {
X11SD_PuntPixmap(xsdo, w, h);
}
maxWidth = xsdo->pmWidth;
maxHeight = xsdo->pmHeight;
} else {
XWindowAttributes winAttr;
if (XGetWindowAttributes(awt_display,
(Window) xsdo->drawable, &winAttr) != 0) {
maxWidth = winAttr.width;
maxHeight = winAttr.height;
} else {
/* XGWA failed which isn't a good thing. Defaulting to using
* x,y means that after the subtraction of these we will use
* w=0, h=0 which is a reasonable default on such a failure.
*/
maxWidth = x;
maxHeight = y;
}
}
maxWidth -= x;
maxHeight -= y;
img = X11SD_GetSharedImage(xsdo, w, h, maxWidth, maxHeight, readBits);
}
#endif /* MITSHM */
drawable = xsdo->drawable;
if (readBits) {
#ifdef MITSHM
if (img != NULL) {
if (!XShmGetImage(awt_display, drawable, img, x, y, -1)) {
X11SD_DisposeOrCacheXImage(img);
img = NULL;
}
}
if (img == NULL) {
img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
if (img != NULL) {
img->obdata = NULL;
}
}
#else
img = XGetImage(awt_display, drawable, x, y, w, h, -1, ZPixmap);
#endif /* MITSHM */
if (img == NULL) {
SurfaceDataBounds temp;
img = XCreateImage(awt_display,
xsdo->configData->awt_visInfo.visual,
depth, ZPixmap, 0, NULL, w, h, pad, 0);
if (img == NULL) {
return NULL;
}
scan = img->bytes_per_line;
img->data = malloc(h * scan);
if (img->data == NULL) {
XFree(img);
return NULL;
}
if (xsdo->isPixmap == JNI_FALSE &&
X11SD_ClipToRoot(&temp, bounds, xsdo)) {
XImage * temp_image;
temp_image = XGetImage(awt_display, drawable,
temp.x1, temp.y1,
temp.x2 - temp.x1,
temp.y2 - temp.y1,
-1, ZPixmap);
if (temp_image == NULL) {
XGrabServer(awt_display);
if (X11SD_FindClip(&temp, bounds, xsdo)) {
temp_image =
XGetImage(awt_display, drawable,
temp.x1, temp.y1,
temp.x2 - temp.x1,
temp.y2 - temp.y1,
-1, ZPixmap);
}
XUngrabServer(awt_display);
/* Workaround for bug 5039226 */
XSync(awt_display, False);
}
if (temp_image != NULL) {
int temp_scan, bytes_to_copy;
char * img_addr, * temp_addr;
int i;
img_addr = img->data +
(temp.y1 - y) * scan + (temp.x1 - x) * mult;
temp_scan = temp_image->bytes_per_line;
temp_addr = temp_image->data;
bytes_to_copy = (temp.x2 - temp.x1) * mult;
for (i = temp.y1; i < temp.y2; i++) {
memcpy(img_addr, temp_addr, bytes_to_copy);
img_addr += scan;
temp_addr += temp_scan;
}
XDestroyImage(temp_image);
}
}
img->obdata = NULL;
}
if (depth > 8 && img->byte_order != nativeByteOrder) {
X11SD_SwapBytes(xsdo, img, depth,
xsdo->configData->awtImage->wsImageFormat.bits_per_pixel);
}
} else {
/*
* REMIND: This might be better to move to the Lock function
* to avoid lengthy I/O pauses inside what may be a critical
* section. This will be more critical when SD_LOCK_READ is
* implemented. Another solution is to cache the pixels
* to avoid reading for every operation.
*/
if (img == NULL) {
img = XCreateImage(awt_display,
xsdo->configData->awt_visInfo.visual,
depth, ZPixmap, 0, NULL, w, h, pad, 0);
if (img == NULL) {
return NULL;
}
img->data = malloc(h * img->bytes_per_line);
if (img->data == NULL) {
XFree(img);
return NULL;
}
img->obdata = NULL;
if (img->byte_order != nativeByteOrder &&
(depth == 15 || depth == 16 || depth == 12)) {
/* bytes will be swapped by XLib. */
img->byte_order = nativeByteOrder;
img->bitmap_bit_order = nativeByteOrder;
}
}
}
return img;
}
void X11SD_DisposeOrCacheXImage(XImage * image) {
/* REMIND: might want to check if the new image worth caching. */
/* Cache only shared images. Passed image is assumed to be non-null. */
if (image->obdata != NULL) {
if (cachedXImage != NULL) {
X11SD_DisposeXImage(cachedXImage);
}
cachedXImage = image;
} else {
X11SD_DisposeXImage(image);
}
}
void X11SD_DisposeXImage(XImage * image) {
if (image != NULL) {
#ifdef MITSHM
if (image->obdata != NULL) {
X11SD_DropSharedSegment((XShmSegmentInfo*)image->obdata);
image->obdata = NULL;
}
#endif /* MITSHM */
XDestroyImage(image);
}
}
static JDgaStatus
GetLockStub(JNIEnv *env, Display *display, void **dgaDev,
Drawable d, JDgaSurfaceInfo *pSurface,
jint lox, jint loy, jint hix, jint hiy)
{
return JDGA_UNAVAILABLE;
}
static JDgaStatus
ReleaseLockStub(JNIEnv *env, void *dgaDev, Drawable d)
{
return JDGA_FAILED;
}
static void
XRequestSentStub(JNIEnv *env, void *dgaDev, Drawable d)
{
}
static void
LibDisposeStub(JNIEnv *env)
{
}
static JDgaLibInfo DgaLibInfoStub = {
NULL,
GetLockStub,
ReleaseLockStub,
XRequestSentStub,
LibDisposeStub,
};
void X11SD_LibDispose(JNIEnv *env) {
AWT_LOCK();
if (pJDgaInfo != NULL) {
pJDgaInfo->pLibDispose(env);
pJDgaInfo = &DgaLibInfoStub;
}
AWT_UNLOCK();
}
void
X11SD_DirectRenderNotify(JNIEnv *env, X11SDOps *xsdo)
{
#ifdef MITSHM
if (xsdo->shmPMData.usingShmPixmap) {
xsdo->shmPMData.xRequestSent = JNI_TRUE;
}
#endif /* MITSHM */
(*pJDgaInfo->pXRequestSent)(env, xsdo->dgaDev, xsdo->drawable);
awt_output_flush();
}
/*
* Sets transparent pixels in the pixmap to
* the specified solid background color and returns it.
* Doesn't update source pixmap unless the color of the
* transparent pixels is different from the specified color.
*
* Note: The AWT lock must be held by the current thread
* while calling into this method.
*/
static Drawable
X11SD_GetPixmapWithBg(JNIEnv *env, X11SDOps *xsdo, jint pixel)
{
/* assert AWT_CHECK_HAVE_LOCK(); */
if (xsdo->invalid) {
AWT_UNLOCK();
SurfaceData_ThrowInvalidPipeException(env, "bounds changed");
return 0;
}
/* the image doesn't have transparency, just return it */
if (xsdo->bitmask == 0) {
/* don't need to unlock here, the caller will unlock through
the release call */
return xsdo->drawable;
}
/* Check if current color of the transparent pixels is different
from the specified one */
if (xsdo->isBgInitialized == JNI_FALSE || xsdo->bgPixel != pixel) {
GC srcGC;
GC bmGC;
if (xsdo->drawable == 0) {
AWT_UNLOCK();
return 0;
}
bmGC = XCreateGC(awt_display, xsdo->bitmask, 0, NULL);
if (bmGC == NULL) {
AWT_UNLOCK();
return 0;
}
/* invert the bitmask */
XSetFunction(awt_display, bmGC, GXxor);
XSetForeground(awt_display, bmGC, 1);
XFillRectangle(awt_display, xsdo->bitmask, bmGC,
0, 0, xsdo->pmWidth, xsdo->pmHeight);
srcGC = XCreateGC(awt_display, xsdo->drawable, 0L, NULL);
if (srcGC == NULL) {
XFreeGC(awt_display, bmGC);
AWT_UNLOCK();
return 0;
}
/* set transparent pixels in the source pm to the bg color */
XSetClipMask(awt_display, srcGC, xsdo->bitmask);
XSetForeground(awt_display, srcGC, pixel);
XFillRectangle(awt_display, xsdo->drawable, srcGC,
0, 0, xsdo->pmWidth, xsdo->pmHeight);
/* invert the mask back */
XFillRectangle(awt_display, xsdo->bitmask, bmGC,
0, 0, xsdo->pmWidth, xsdo->pmHeight);
XFreeGC(awt_display, bmGC);
XFreeGC(awt_display, srcGC);
xsdo->bgPixel = pixel;
xsdo->isBgInitialized = JNI_TRUE;
}
return xsdo->drawable;
}
static void
X11SD_ReleasePixmapWithBg(JNIEnv *env, X11SDOps *xsdo)
{
#ifdef MITSHM
if (xsdo->shmPMData.usingShmPixmap) {
xsdo->shmPMData.xRequestSent = JNI_TRUE;
}
#endif /* MITSHM */
}
#endif /* !HEADLESS */
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: XCreateGC
* Signature: (I)J
*/
JNIEXPORT jlong JNICALL
Java_sun_java2d_x11_XSurfaceData_XCreateGC
(JNIEnv *env, jclass xsd, jlong pXSData)
{
jlong ret;
#ifndef HEADLESS
X11SDOps *xsdo;
J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XCreateGC");
xsdo = (X11SDOps *) pXSData;
if (xsdo == NULL) {
return 0L;
}
xsdo->javaGC = XCreateGC(awt_display, xsdo->drawable, 0, NULL);
ret = (jlong) xsdo->javaGC;
#else /* !HEADLESS */
ret = 0L;
#endif /* !HEADLESS */
return ret;
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: XResetClip
* Signature: (JIIIILsun/java2d/pipe/Region;)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_XSurfaceData_XResetClip
(JNIEnv *env, jclass xsd, jlong xgc)
{
#ifndef HEADLESS
J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XResetClip");
XSetClipMask(awt_display, (GC) xgc, None);
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: XSetClip
* Signature: (JIIIILsun/java2d/pipe/Region;)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_XSurfaceData_XSetClip
(JNIEnv *env, jclass xsd, jlong xgc,
jint x1, jint y1, jint x2, jint y2,
jobject complexclip)
{
#ifndef HEADLESS
int numrects;
XRectangle rects[256];
XRectangle *pRect = rects;
J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetClip");
numrects = RegionToYXBandedRectangles(env,
x1, y1, x2, y2, complexclip,
&pRect, 256);
XSetClipRectangles(awt_display, (GC) xgc, 0, 0, pRect, numrects, YXBanded);
if (pRect != rects) {
free(pRect);
}
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: XSetCopyMode
* Signature: (J)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_X11SurfaceData_XSetCopyMode
(JNIEnv *env, jclass xsd, jlong xgc)
{
#ifndef HEADLESS
J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetCopyMode");
XSetFunction(awt_display, (GC) xgc, GXcopy);
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: XSetXorMode
* Signature: (J)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_X11SurfaceData_XSetXorMode
(JNIEnv *env, jclass xr, jlong xgc)
{
#ifndef HEADLESS
J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetXorMode");
XSetFunction(awt_display, (GC) xgc, GXxor);
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: XSetForeground
* Signature: (JI)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_X11SurfaceData_XSetForeground
(JNIEnv *env, jclass xsd, jlong xgc, jint pixel)
{
#ifndef HEADLESS
J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetForeground");
XSetForeground(awt_display, (GC) xgc, pixel);
#endif /* !HEADLESS */
}
/*
* Class: sun_java2d_x11_X11SurfaceData
* Method: XSetGraphicsExposures
* Signature: (JZ)V
*/
JNIEXPORT void JNICALL
Java_sun_java2d_x11_XSurfaceData_XSetGraphicsExposures
(JNIEnv *env, jclass xsd, jlong xgc, jboolean needExposures)
{
#ifndef HEADLESS
J2dTraceLn(J2D_TRACE_INFO, "in X11SurfaceData_XSetGraphicsExposures");
XSetGraphicsExposures(awt_display, (GC) xgc, needExposures ? True : False);
#endif /* !HEADLESS */
}
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