/**
* Initializes the shared context and shared surface.
*/
static jint
GLXGC_InitSharedContext(JNIEnv *env, GLXGraphicsConfigInfo *glxinfo)
{
GLXPbuffer pbuffer;
int attrlist[] = {GLX_PBUFFER_WIDTH, 1,
GLX_PBUFFER_HEIGHT, 1,
GLX_PRESERVED_CONTENTS, GL_FALSE, 0};
J2dTraceLn(J2D_TRACE_INFO, "in GLXGC_InitSharedContext");
sharedContext = GLXGC_InitOGLContext(env, glxinfo, NULL, JNI_FALSE);
if (sharedContext == NULL) {
J2dTraceLn(J2D_TRACE_ERROR, "could not create shared context");
return SD_FAILURE;
}
sharedSurface = j2d_glXCreatePbuffer(awt_display, glxinfo->fbconfig,
attrlist);
if (sharedSurface == 0) {
J2dTraceLn(J2D_TRACE_ERROR, "could not create shared surface");
GLXGC_DestroyOGLContext(env, sharedContext);
return SD_FAILURE;
}
sharedConfigInfo = glxinfo;
return SD_SUCCESS;
}
/**
* Creates a scratch pbuffer, which can be used to make a context current
* for extension queries, etc.
*/
static GLXPbuffer
GLXGC_InitScratchPbuffer(GLXFBConfig fbconfig)
{
int pbattrlist[] = {GLX_PBUFFER_WIDTH, 4,
GLX_PBUFFER_HEIGHT, 4,
GLX_PRESERVED_CONTENTS, GL_FALSE,
0};
J2dTraceLn(J2D_TRACE_INFO, "GLXGC_InitScratchPbuffer");
return j2d_glXCreatePbuffer(awt_display, fbconfig, pbattrlist);
}
JNIEXPORT jboolean JNICALL
Java_sun_java2d_opengl_GLXSurfaceData_initPbuffer
(JNIEnv *env, jobject glxsd,
jlong pData, jlong pConfigInfo,
jboolean isOpaque,
jint width, jint height)
{
OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
GLXGraphicsConfigInfo *glxinfo =
(GLXGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo);
GLXSDOps *glxsdo;
GLXPbuffer pbuffer;
int attrlist[] = {GLX_PBUFFER_WIDTH, 0,
GLX_PBUFFER_HEIGHT, 0,
GLX_PRESERVED_CONTENTS, GL_FALSE, 0};
J2dTraceLn3(J2D_TRACE_INFO,
"GLXSurfaceData_initPbuffer: w=%d h=%d opq=%d",
width, height, isOpaque);
if (oglsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXSurfaceData_initPbuffer: ops are null");
return JNI_FALSE;
}
glxsdo = (GLXSDOps *)oglsdo->privOps;
if (glxsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXSurfaceData_initPbuffer: glx ops are null");
return JNI_FALSE;
}
if (glxinfo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXSurfaceData_initPbuffer: glx config info is null");
return JNI_FALSE;
}
attrlist[1] = width;
attrlist[3] = height;
surfaceCreationFailed = JNI_FALSE;
EXEC_WITH_XERROR_HANDLER(
GLXSD_BadAllocXErrHandler,
pbuffer = j2d_glXCreatePbuffer(awt_display,
glxinfo->fbconfig, attrlist));
if ((pbuffer == 0) || surfaceCreationFailed) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXSurfaceData_initPbuffer: could not create glx pbuffer");
return JNI_FALSE;
}
oglsdo->drawableType = OGLSD_PBUFFER;
oglsdo->isOpaque = isOpaque;
oglsdo->width = width;
oglsdo->height = height;
oglsdo->xOffset = 0;
oglsdo->yOffset = 0;
glxsdo->drawable = pbuffer;
glxsdo->xdrawable = 0;
return JNI_TRUE;
}
/**
* Determines whether the GLX pipeline can be used for a given GraphicsConfig
* provided its screen number and visual ID. If the minimum requirements are
* met, the native GLXGraphicsConfigInfo structure is initialized for this
* GraphicsConfig with the necessary information (pthread key, GLXFBConfig,
* etc.) and a pointer to this structure is returned as a jlong. If
* initialization fails at any point, zero is returned, indicating that GLX
* cannot be used for this GraphicsConfig (we should fallback on the existing
* X11 pipeline).
*/
static jlong
GLXGC_GetGLXConfigInfo(JNIEnv *env, jint screennum, jint visnum)
{
GLXFBConfig fbconfig;
GLXContext context;
GLXPbuffer glxpbuffer;
int pbattrlist[] = {GLX_PBUFFER_WIDTH, 1,
GLX_PBUFFER_HEIGHT, 1,
GLX_PRESERVED_CONTENTS, GL_FALSE,
0};
GLXGraphicsConfigInfo *glxinfo;
int db;
const unsigned char *versionstr;
J2dTraceLn(J2D_TRACE_INFO, "in GLXGC_GetGLXConfigInfo");
fbconfig = GLXGC_InitFBConfig(env, screennum, visnum);
if (fbconfig == 0) {
J2dTraceLn(J2D_TRACE_ERROR, "could not create fbconfig");
return 0;
}
glxinfo = (GLXGraphicsConfigInfo *)malloc(sizeof(GLXGraphicsConfigInfo));
if (glxinfo == NULL) {
J2dTraceLn(J2D_TRACE_ERROR, "could not allocate memory for glxinfo");
return 0;
}
// create a temporary context, used for querying OpenGL version and
// extensions
context = j2d_glXCreateNewContext(awt_display, fbconfig,
GLX_RGBA_TYPE, NULL, GL_TRUE);
if (context == 0) {
J2dTraceLn(J2D_TRACE_ERROR, "could not create temp GLX context");
free(glxinfo);
return 0;
}
// this is pretty sketchy, but it seems to be the easiest way to create
// some form of GLXDrawable using only the display and a GLXFBConfig
// (in order to make the context current for checking the version,
// extensions, etc)...
glxpbuffer = j2d_glXCreatePbuffer(awt_display, fbconfig, pbattrlist);
if (glxpbuffer == 0) {
J2dTraceLn(J2D_TRACE_ERROR, "could not create scratch pbuffer");
j2d_glXDestroyContext(awt_display, context);
free(glxinfo);
return 0;
}
// the temporary context must be made current before we can query the
// version and extension strings
j2d_glXMakeContextCurrent(awt_display, glxpbuffer, glxpbuffer, context);
versionstr = j2d_glGetString(GL_VERSION);
OGLContext_GetExtensionInfo(&glxinfo->extInfo);
// destroy the temporary resources
j2d_glXMakeContextCurrent(awt_display, None, None, NULL);
j2d_glXDestroyPbuffer(awt_display, glxpbuffer);
j2d_glXDestroyContext(awt_display, context);
// invalidate the current context
OGLContext_InvalidateCurrentContext(env);
J2dTraceLn(J2D_TRACE_VERBOSE, "finished with temporary pbuffer/context");
J2dTraceLn1(J2D_TRACE_INFO, "OpenGL version: %s", versionstr);
if (!OGLContext_IsVersionSupported(versionstr)) {
J2dTraceLn(J2D_TRACE_ERROR, "invalid OpenGL version; 1.2 is required");
free(glxinfo);
return 0;
}
J2dTraceLn(J2D_TRACE_VERBOSE,
"successfully finished checking dependencies");
j2d_glXGetFBConfigAttrib(awt_display, fbconfig, GLX_DOUBLEBUFFER, &db);
glxinfo->screen = screennum;
glxinfo->visual = visnum;
glxinfo->fbconfig = fbconfig;
glxinfo->isDoubleBuffered = db;
// create the single shared context (if it hasn't been created already)
if (sharedContext == NULL) {
if (GLXGC_InitSharedContext(env, glxinfo) == SD_FAILURE) {
J2dTraceLn(J2D_TRACE_ERROR, "could not init shared context");
free(glxinfo);
return 0;
}
}
return ptr_to_jlong(glxinfo);
}
JNIEXPORT jboolean JNICALL
Java_sun_java2d_opengl_GLXSurfaceData_initPbuffer
(JNIEnv *env, jobject glxsd,
jlong pCtx, jlong pData,
jint width, jint height)
{
OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
OGLContext *oglc = (OGLContext *)jlong_to_ptr(pCtx);
GLXSDOps *glxsdo;
GLXCtxInfo *ctxinfo;
GLXPbuffer pbuffer;
int attrlist[] = {GLX_PBUFFER_WIDTH, 0,
GLX_PBUFFER_HEIGHT, 0,
GLX_PRESERVED_CONTENTS, GL_FALSE, 0};
J2dTraceLn2(J2D_TRACE_INFO, "in GLXSurfaceData_initPbuffer (w=%d h=%d)",
width, height);
if (oglsdo == NULL) {
J2dTraceLn(J2D_TRACE_ERROR, "ops are null");
return JNI_FALSE;
}
glxsdo = (GLXSDOps *)oglsdo->privOps;
if (glxsdo == NULL) {
J2dTraceLn(J2D_TRACE_ERROR, "glx ops are null");
return JNI_FALSE;
}
if (oglc == NULL) {
J2dTraceLn(J2D_TRACE_ERROR, "context is null");
return JNI_FALSE;
}
ctxinfo = (GLXCtxInfo *)oglc->ctxInfo;
if (ctxinfo == NULL) {
J2dTraceLn(J2D_TRACE_ERROR, "glx context info is null");
return JNI_FALSE;
}
attrlist[1] = width;
attrlist[3] = height;
surfaceCreationFailed = JNI_FALSE;
EXEC_WITH_XERROR_HANDLER(
GLXSD_BadAllocXErrHandler,
pbuffer = j2d_glXCreatePbuffer(awt_display,
ctxinfo->fbconfig, attrlist));
if ((pbuffer == 0) || surfaceCreationFailed) {
J2dTraceLn(J2D_TRACE_ERROR, "could not create glx pbuffer");
return JNI_FALSE;
}
oglsdo->drawableType = OGLSD_PBUFFER;
oglsdo->width = width;
oglsdo->height = height;
oglsdo->xOffset = 0;
oglsdo->yOffset = 0;
oglsdo->isPremult = JNI_TRUE;
glxsdo->drawable = pbuffer;
glxsdo->xdrawable = 0;
return JNI_TRUE;
}