int
main(int argc, char **argv)
{
int i;
Pixmap pixmap;
for(i = 1; i < argc; ++i) {
if (!strcmp(argv[i], "-auto"))
piglit_automatic = 1;
else
fprintf(stderr, "Unknown option: %s\n", argv[i]);
}
XInitThreads();
dpy = XOpenDisplay(NULL);
if (dpy == NULL) {
fprintf(stderr, "couldn't open display\n");
piglit_report_result(PIGLIT_FAIL);
}
visinfo = piglit_get_glx_visual(dpy);
draw_win = piglit_get_glx_window(dpy, visinfo);
pixmap = XCreatePixmap(dpy, DefaultRootWindow(dpy),
piglit_width, piglit_height, visinfo->depth);
load_win = glXCreateGLXPixmap(dpy, visinfo, pixmap);
XMapWindow(dpy, draw_win);
piglit_glx_event_loop(dpy, draw);
return 0;
}
const GrGLInterface* SkNativeSharedGLContext::createGLContext(const int width, const int height) {
SkASSERT(NULL == fContext);
// Create the base pixmap and GLX pixmap.
//
// TODO(pcwalton): This is inefficient. It would be better to have the caller pass in the
// pixmap.
int screen = DefaultScreen(fDisplay);
Drawable root = RootWindow(fDisplay, screen);
fPixmap = XCreatePixmap(fDisplay, root, width, height, fVisualInfo->depth);
fGlxPixmap = glXCreateGLXPixmap(fDisplay, fVisualInfo, fPixmap);
fContext = glXCreateContext(fDisplay, fVisualInfo, NULL, true);
if (NULL == fContext) {
SkDebugf("glXCreateContext failed with %d.", fContext);
return NULL;
}
glXMakeCurrent(fDisplay, fGlxPixmap, fContext);
const GrGLInterface* interface = GrGLCreateNativeInterface();
if (NULL == interface) {
SkDebugf("Context could not create GL interface.\n");
this->destroyGLContext();
return NULL;
}
return interface;
}
std::unique_ptr<GLContextGLX> GLContextGLX::createPixmapContext(PlatformDisplay& platformDisplay, GLXContext sharingContext)
{
static int visualAttributes[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_ALPHA_SIZE, 1,
0
};
Display* display = downcast<PlatformDisplayX11>(platformDisplay).native();
XUniquePtr<XVisualInfo> visualInfo(glXChooseVisual(display, DefaultScreen(display), visualAttributes));
if (!visualInfo)
return nullptr;
XUniqueGLXContext context(glXCreateContext(display, visualInfo.get(), sharingContext, GL_TRUE));
if (!context)
return nullptr;
XUniquePixmap pixmap(XCreatePixmap(display, DefaultRootWindow(display), 1, 1, visualInfo->depth));
if (!pixmap)
return nullptr;
XUniqueGLXPixmap glxPixmap(glXCreateGLXPixmap(display, visualInfo.get(), pixmap.get()));
if (!glxPixmap)
return nullptr;
return std::unique_ptr<GLContextGLX>(new GLContextGLX(platformDisplay, WTFMove(context), WTFMove(pixmap), WTFMove(glxPixmap)));
}
int glx_1_2_pixmap_dummy(Display *dpy)
{
/* untested. based on http://glprogramming.com/blue/ch07.html */
XVisualInfo *vi;
GLXContext cx;
GLXPixmap glx_pixmap;
Pixmap x11_pixmap;
int dummyAttributes_1_2[] = {
GLX_RGBA,
None
};
dpy = XOpenDisplay(0);
vi = glXChooseVisual(dpy, DefaultScreen(dpy), dummyAttributes_1_2 );
dump_vinfo(vi);
x11_pixmap = XCreatePixmap( dpy, DefaultRootWindow(dpy) , 10, 10, 32 );
glx_pixmap = glXCreateGLXPixmap( dpy, vi, x11_pixmap );
cx = glXCreateContext(dpy, vi, 0, GL_FALSE);
glXMakeCurrent(dpy, glx_pixmap, cx);
}
static GLXPixmap make_pixmap( Display *dpy, Window win,
unsigned int width, unsigned int height,
Pixmap *pixmap)
{
Pixmap pm;
GLXPixmap glxpm;
XWindowAttributes attr;
pm = XCreatePixmap( dpy, win, width, height, visinfo->depth );
if (!pm) {
printf("Error: XCreatePixmap failed\n");
exit(-1);
}
XGetWindowAttributes( dpy, win, &attr );
printf("pm %lx\n", pm);
/*
* IMPORTANT:
* Use the glXCreateGLXPixmapMESA funtion when using Mesa because
* Mesa needs to know the colormap associated with a pixmap in order
* to render correctly. This is because Mesa allows RGB rendering
* into any kind of visual, not just TrueColor or DirectColor.
*/
#ifdef GLX_MESA_pixmap_colormap
if (strstr(glXQueryExtensionsString(dpy, 0), "GLX_MESA_pixmap_colormap")) {
/* stand-alone Mesa, specify the colormap */
glxpm = glXCreateGLXPixmapMESA( dpy, visinfo, pm, attr.colormap );
}
else {
glxpm = glXCreateGLXPixmap( dpy, visinfo, pm );
}
#else
/* This will work with Mesa too if the visual is TrueColor or DirectColor */
glxpm = glXCreateGLXPixmap( dpy, visinfo, pm );
#endif
if (!glxpm) {
printf("Error: GLXCreateGLXPixmap failed\n");
exit(-1);
}
*pixmap = pm;
return glxpm;
}
static GF_Err X11_SetupGLPixmap(GF_VideoOutput *vout, u32 width, u32 height)
{
XWindow *xWin = (XWindow *)vout->opaque;
if (xWin->glx_context) {
glXMakeCurrent(xWin->display, None, NULL);
glXDestroyContext(xWin->display, xWin->glx_context);
xWin->glx_context = NULL;
}
if (xWin->gl_offscreen) glXDestroyGLXPixmap(xWin->display, xWin->gl_offscreen);
xWin->gl_offscreen = 0;
if (xWin->gl_pixmap) XFreePixmap(xWin->display, xWin->gl_pixmap);
xWin->gl_pixmap = 0;
if (xWin->offscreen_type) {
GF_LOG(GF_LOG_INFO, GF_LOG_MMIO, ("[X11] Using offscreen GL context through XWindow\n"));
if (xWin->offscreen_type==2) {
XSync(xWin->display, False);
XMapWindow (xWin->display, (Window) xWin->gl_wnd);
XSync(xWin->display, False);
// XSetWMNormalHints (xWin->display, xWin->gl_wnd, Hints);
XStoreName (xWin->display, xWin->gl_wnd, "GPAC Offscreeen Window - debug mode");
}
XSync(xWin->display, False);
xWin->glx_context = glXCreateContext(xWin->display,xWin->glx_visualinfo, NULL, True);
XSync(xWin->display, False);
if (!xWin->glx_context) return GF_IO_ERR;
if ( ! glXMakeCurrent(xWin->display, xWin->gl_wnd, xWin->glx_context) ) return GF_IO_ERR;
XSync(xWin->display, False);
} else {
GF_LOG(GF_LOG_INFO, GF_LOG_MMIO, ("[X11] Using offscreen GL context through glXPixmap\n"));
xWin->gl_pixmap = XCreatePixmap(xWin->display, xWin->gl_wnd, width, height, xWin->depth);
if (!xWin->gl_pixmap) return GF_IO_ERR;
xWin->gl_offscreen = glXCreateGLXPixmap(xWin->display, xWin->glx_visualinfo, xWin->gl_pixmap);
if (!xWin->gl_offscreen) return GF_IO_ERR;
XSync(xWin->display, False);
xWin->glx_context = glXCreateContext(xWin->display, xWin->glx_visualinfo, 0, GL_FALSE);
XSync(xWin->display, False);
if (!xWin->glx_context) return GF_IO_ERR;
XSync(xWin->display, False);
GF_LOG(GF_LOG_WARNING, GF_LOG_MMIO, ("[X11] Activating GLContext on GLPixmap - this may crash !!\n"));
glXMakeCurrent(xWin->display, xWin->gl_offscreen, xWin->glx_context);
}
GF_LOG(GF_LOG_INFO, GF_LOG_MMIO, ("[X11] Offscreen GL context setup\n"));
return GF_OK;
}
JNIEXPORT jint JNICALL GLX_NATIVE(glXCreateGLXPixmap)
(JNIEnv *env, jclass that, jint arg0, jobject arg1, jint arg2)
{
XVisualInfo _arg1, *lparg1=NULL;
jint rc = 0;
GLX_NATIVE_ENTER(env, that, glXCreateGLXPixmap_FUNC);
if (arg1) if ((lparg1 = getXVisualInfoFields(env, arg1, &_arg1)) == NULL) goto fail;
rc = (jint)glXCreateGLXPixmap(arg0, lparg1, arg2);
fail:
if (arg1 && lparg1) setXVisualInfoFields(env, arg1, lparg1);
GLX_NATIVE_EXIT(env, that, glXCreateGLXPixmap_FUNC);
return rc;
}
static SbBool
glxglue_context_create_software(struct glxglue_contextdata * context)
{
/* Note that the value of the last argument (which indicates whether
or not we're asking for a DRI-capable context) is "False" on
purpose, as the man pages for glXCreateContext() says:
[...] direct rendering contexts [...] may be unable to
render to GLX pixmaps [...]
Rendering to a GLX pixmap is of course exactly what we want to be
able to do. */
Display * display = glxglue_get_display(NULL);
context->glxcontext = glXCreateContext(display, context->visinfo, 0,
False);
if (context->glxcontext == NULL) {
cc_debugerror_postwarning("glxglue_context_create_software",
"Couldn't create GLX context.");
return FALSE;
}
if (coin_glglue_debug()) {
cc_debugerror_postinfo("glxglue_context_create_software",
"made new offscreen context == %p",
context->glxcontext);
}
context->pixmap = XCreatePixmap(display,
DefaultRootWindow(display),
context->width, context->height, context->visinfo->depth);
if (context->pixmap == 0) {
cc_debugerror_postwarning("glxglue_context_create_software",
"Couldn't create %dx%dx%d X11 Pixmap.",
context->width, context->height, context->visinfo->depth);
return FALSE;
}
context->glxpixmap = glXCreateGLXPixmap(display,
context->visinfo, context->pixmap);
if (context->glxpixmap == 0) {
cc_debugerror_postwarning("glxglue_context_create_software",
"Couldn't create GLX Pixmap.");
return FALSE;
}
return TRUE;
}
int
main(int argc, char **argv)
{
Pixmap p;
GLXPixmap g;
GLXContext ctx;
dpy = XOpenDisplay(NULL);
if (dpy == NULL) {
fprintf(stderr, "couldn't open display\n");
piglit_report_result(PIGLIT_FAIL);
}
piglit_glx_get_error(dpy, NULL);
piglit_require_glx_version(dpy, 1, 3);
visinfo = piglit_get_glx_visual(dpy);
p = XCreatePixmap(dpy, DefaultRootWindow(dpy), piglit_width,
piglit_height, visinfo->depth);
g = glXCreateGLXPixmap(dpy, visinfo, p);
ctx = piglit_get_glx_context(dpy, visinfo);
glXMakeCurrent(dpy, g, ctx);
piglit_dispatch_default_init(PIGLIT_DISPATCH_GL);
/* Clear to green */
glClearColor(0.0, 1.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
/* Noop */
XSetErrorHandler(handler);
glXSwapBuffers(dpy, p);
/* We want to actually catch any X error that leaks through as
* a result of glXSwapBuffers() before we go saying "pass" or
* "fail".
*/
XSync(dpy, False);
glXDestroyPixmap(dpy, g);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
return 0;
}
SkNativeSharedGLContext::SkNativeSharedGLContext(GrGLSharedContext sharedContext, void *extra)
: fContext(NULL)
, fGrContext(NULL)
, fGL(NULL)
, fSharedContext(sharedContext)
, fFBO(0)
, fTextureID(0)
, fDepthStencilBufferID(0) {
fDisplay = (Display *)extra;
SkASSERT(NULL != fDisplay);
int screen = DefaultScreen(fDisplay);
GLint att[] = {
GLX_RGBA,
GLX_DEPTH_SIZE, 24,
None
};
XVisualInfo *visinfo = glXChooseVisual(fDisplay, screen, att);
Drawable root = RootWindow(fDisplay, screen);
fPixmap = XCreatePixmap(fDisplay, root, 10, 10, visinfo->depth);
fGlxPixmap = glXCreateGLXPixmap(fDisplay, visinfo, fPixmap);
}
GraphicsContext3DPrivate* GraphicsContext3DPrivate::createPixmapContext()
{
static int visualAttributes[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_ALPHA_SIZE, 1,
GLX_DOUBLEBUFFER,
0
};
XVisualInfo* visualInfo = glXChooseVisual(sharedDisplay(), DefaultScreen(sharedDisplay()), visualAttributes);
if (!visualInfo)
return 0;
GLXContext context = glXCreateContext(sharedDisplay(), visualInfo, 0, GL_TRUE);
if (!context) {
XFree(visualInfo);
return 0;
}
Pixmap pixmap = XCreatePixmap(sharedDisplay(), DefaultRootWindow(sharedDisplay()), 1, 1, visualInfo->depth);
if (!pixmap) {
XFree(visualInfo);
return 0;
}
GLXPixmap glxPixmap = glXCreateGLXPixmap(sharedDisplay(), visualInfo, pixmap);
if (!glxPixmap) {
XFreePixmap(sharedDisplay(), pixmap);
XFree(visualInfo);
return 0;
}
return new GraphicsContext3DPrivate(context, pixmap, glxPixmap);
}
int glx_1_3_pixmap_dummy(Display *dpy, Bool hybrid)
{
XVisualInfo *vInfo;
GLXFBConfig *fbConfigs;
GLXContext context;
GLXPixmap glx_pixmap;
Pixmap x11_pixmap;
int numReturned;
int result;
int dummyAttributes_1_3[] = {
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
None
};
fbConfigs = glXChooseFBConfig( dpy, DefaultScreen(dpy),
dummyAttributes_1_3,
&numReturned );
vInfo = glXGetVisualFromFBConfig( dpy, fbConfigs[0] );
dump_vinfo(vInfo);
x11_pixmap = XCreatePixmap( dpy, DefaultRootWindow(dpy) , 10, 10, 8 );
if (hybrid)
glx_pixmap = glXCreateGLXPixmap( dpy, vInfo, x11_pixmap ); //GLX 1.2
else
glx_pixmap = glXCreatePixmap( dpy, fbConfigs[0], x11_pixmap, NULL ); // GLX 1.3
context = glXCreateNewContext( dpy, fbConfigs[0], GLX_RGBA_TYPE, NULL, True );
glXMakeContextCurrent( dpy, glx_pixmap, glx_pixmap, context );
return 1;
}
bool P3DGLMemoryContextPixmap::Create
(unsigned int Width,
unsigned int Height,
bool NeedAlpha)
{
bool Result;
XVisualInfo *VisualInfo;
Result = true;
if (Connection == NULL)
{
OwnConnection = true;
Connection = XOpenDisplay(NULL);
if (Connection == NULL)
{
return(false);
}
}
else
{
OwnConnection = false;
}
Result = true;
if (NeedAlpha)
{
VisualInfo = glXChooseVisual(Connection,
DefaultScreen(Connection),
VisualAttrArrayAlpha);
}
else
{
VisualInfo = glXChooseVisual(Connection,
DefaultScreen(Connection),
VisualAttrArray);
}
if (VisualInfo != NULL)
{
TargetPixmap = XCreatePixmap(Connection,
DefaultRootWindow(Connection),
Width,
Height,
VisualInfo->depth);
TargetGLXPixmap = glXCreateGLXPixmap(Connection,VisualInfo,TargetPixmap);
/*FIXME: check for errors here */
OffScreenGLXContext = glXCreateContext(Connection,VisualInfo,NULL,False);
if (OffScreenGLXContext != NULL)
{
Ok = true;
Result = MakeCurrent();
if (Result)
{
Result = P3DGLExtInit();
}
Ok = Result;
}
else
{
Result = false;
}
if (!Result)
{
glXDestroyGLXPixmap(Connection,TargetGLXPixmap);
XFreePixmap(Connection,TargetPixmap);
}
XFree(VisualInfo);
}
else
{
Result = false;
}
if (!Result)
{
if (OwnConnection)
{
XCloseDisplay(Connection);
}
Connection = NULL;
}
Ok = Result;
return(Result);
}
// VLC wants to display a video frame.
static void vlcdisplay(void *data, void *id) {
struct context *c = (struct context*)data;
unsigned int *videoTexture = c->videoTexture;
bool isStereo = c->isStereo;
//std::cerr << "**** display: " << videoTexture[0] << std::endl;
//setup GL context by OS
#if __APPLE__
static bool init2 = false;
if(!init2) {
init2 = true;
setupVideoGLContext(c->data);
}
#else
#ifdef WIN32
makeCurrentGL = (void(*)())c->data;
makeCurrentGL();
#else
// Create the pixmap, where one designs the scene
static Pixmap pix = XCreatePixmap(c->dpy, c->root, VIDEOWIDTH, VIDEOHEIGHT, vi->depth);
static GLXPixmap px = glXCreateGLXPixmap(c->dpy, vi, pix);
static GLXContext ctx = glXCreateContext(c->dpy, vi, context, GL_TRUE);
static bool r = glXMakeCurrent(c->dpy, px, ctx);
if(!r) {
std::cerr << "* failed to create GL for video" << std::endl;
}
#endif
#endif
static bool init = false;
if(!init) {
init = true;
c->player->createVideoTextures(c->isStereo, VIDEOWIDTH, VIDEOHEIGHT);
c->player->width = VIDEOWIDTH;
c->player->height = VIDEOHEIGHT;
unsigned int width,height;
if(libvlc_video_get_size(c->mp, 0, &width, & height) == 0) {
c->player->width = width;
c->player->height = height;
std::cerr << "***************** " << VIDEOWIDTH << "x" << VIDEOHEIGHT << " ==> " << width << "x" << height << std::endl;
}
isStereo = false;
}
const GLuint width = VIDEOWIDTH;
const GLuint height = VIDEOHEIGHT;
bool first = true;
if(isStereo) {
glBindTexture(GL_TEXTURE_2D, videoTexture[1]);
int stride = width*2;
glPixelStorei(GL_UNPACK_ROW_LENGTH,stride);
if(first) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, width, height/2, 0,
GL_BGRA, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, videoTexture[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, width, height/2, 0,
GL_BGRA, GL_UNSIGNED_BYTE, pixels+(width*3));
} else {
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height/2,
GL_RGB, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, videoTexture[0]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height/2,
GL_RGB, GL_UNSIGNED_BYTE, pixels+(width*3));
}
} else {
glBindTexture(GL_TEXTURE_2D, videoTexture[0]);
if(first) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, width, height, 0,
GL_BGRA, GL_UNSIGNED_BYTE, pixels);
} else {
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height,
GL_BGRA, GL_UNSIGNED_BYTE, pixels);
}
}
glFlush();
//struct context *c = (context *)data;
// WIDTH/HEIGHT VIDEOWIDTH/VIDEOHEIGHT
}
const GrGLInterface* SkNativeGLContext::createGLContext() {
fDisplay = XOpenDisplay(0);
if (!fDisplay) {
SkDebugf("Failed to open X display.\n");
this->destroyGLContext();
return NULL;
}
// Get a matching FB config
static int visual_attribs[] = {
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_PIXMAP_BIT,
None
};
#ifdef GLX_1_3
//SkDebugf("Getting matching framebuffer configs.\n");
int fbcount;
GLXFBConfig *fbc = glXChooseFBConfig(fDisplay, DefaultScreen(fDisplay),
visual_attribs, &fbcount);
if (!fbc) {
SkDebugf("Failed to retrieve a framebuffer config.\n");
this->destroyGLContext();
return NULL;
}
//SkDebugf("Found %d matching FB configs.\n", fbcount);
// Pick the FB config/visual with the most samples per pixel
//SkDebugf("Getting XVisualInfos.\n");
int best_fbc = -1, best_num_samp = -1;
int i;
for (i = 0; i < fbcount; ++i) {
XVisualInfo *vi = glXGetVisualFromFBConfig(fDisplay, fbc[i]);
if (vi) {
int samp_buf, samples;
glXGetFBConfigAttrib(fDisplay, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf);
glXGetFBConfigAttrib(fDisplay, fbc[i], GLX_SAMPLES, &samples);
//SkDebugf(" Matching fbconfig %d, visual ID 0x%2x: SAMPLE_BUFFERS = %d,"
// " SAMPLES = %d\n",
// i, (unsigned int)vi->visualid, samp_buf, samples);
if (best_fbc < 0 || (samp_buf && samples > best_num_samp))
best_fbc = i, best_num_samp = samples;
}
XFree(vi);
}
GLXFBConfig bestFbc = fbc[best_fbc];
// Be sure to free the FBConfig list allocated by glXChooseFBConfig()
XFree(fbc);
// Get a visual
XVisualInfo *vi = glXGetVisualFromFBConfig(fDisplay, bestFbc);
//SkDebugf("Chosen visual ID = 0x%x\n", (unsigned int)vi->visualid);
#else
int numVisuals;
XVisualInfo visTemplate, *visReturn;
visReturn = XGetVisualInfo(fDisplay, VisualNoMask, &visTemplate, &numVisuals);
if (NULL == visReturn)
{
SkDebugf("Failed to get visual information.\n");
this->destroyGLContext();
return NULL;
}
int best = -1, best_num_samp = -1;
for (int i = 0; i < numVisuals; ++i)
{
int samp_buf, samples;
glXGetConfig(fDisplay, &visReturn[i], GLX_SAMPLE_BUFFERS, &samp_buf);
glXGetConfig(fDisplay, &visReturn[i], GLX_SAMPLES, &samples);
if (best < 0 || (samp_buf && samples > best_num_samp))
best = i, best_num_samp = samples;
}
XVisualInfo temp = visReturn[best];
XVisualInfo *vi = &temp;
XFree(visReturn);
#endif
fPixmap = XCreatePixmap(fDisplay, RootWindow(fDisplay, vi->screen), 10, 10, vi->depth);
if (!fPixmap) {
SkDebugf("Failed to create pixmap.\n");
this->destroyGLContext();
return NULL;
}
fGlxPixmap = glXCreateGLXPixmap(fDisplay, vi, fPixmap);
#ifdef GLX_1_3
// Done with the visual info data
XFree(vi);
#endif
// Create the context
// Install an X error handler so the application won't exit if GL 3.0
// context allocation fails.
//
// Note this error handler is global.
// All display connections in all threads of a process use the same
// error handler, so be sure to guard against other threads issuing
// X commands while this code is running.
ctxErrorOccurred = false;
int (*oldHandler)(Display*, XErrorEvent*) =
XSetErrorHandler(&ctxErrorHandler);
// Get the default screen's GLX extension list
const char *glxExts = glXQueryExtensionsString(
fDisplay, DefaultScreen(fDisplay)
);
// Check for the GLX_ARB_create_context extension string and the function.
// If either is not present, use GLX 1.3 context creation method.
if (!gluCheckExtension(
reinterpret_cast<const GLubyte*>("GLX_ARB_create_context")
, reinterpret_cast<const GLubyte*>(glxExts)))
{
//SkDebugf("GLX_ARB_create_context not found."
// " Using old-style GLX context.\n");
#ifdef GLX_1_3
fContext = glXCreateNewContext(fDisplay, bestFbc, GLX_RGBA_TYPE, 0, True);
#else
fContext = glXCreateContext(fDisplay, vi, 0, True);
#endif
}
#ifdef GLX_1_3
else {
//SkDebugf("Creating context.\n");
PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB =
(PFNGLXCREATECONTEXTATTRIBSARBPROC) glXGetProcAddressARB((GrGLubyte*)"glXCreateContextAttribsARB");
int context_attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
//GLX_CONTEXT_FLAGS_ARB , GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
None
};
fContext = glXCreateContextAttribsARB(
fDisplay, bestFbc, 0, True, context_attribs
);
// Sync to ensure any errors generated are processed.
XSync(fDisplay, False);
if (!ctxErrorOccurred && fContext) {
//SkDebugf( "Created GL 3.0 context.\n" );
} else {
// Couldn't create GL 3.0 context.
// Fall back to old-style 2.x context.
// When a context version below 3.0 is requested,
// implementations will return the newest context version compatible
// with OpenGL versions less than version 3.0.
// GLX_CONTEXT_MAJOR_VERSION_ARB = 1
context_attribs[1] = 1;
// GLX_CONTEXT_MINOR_VERSION_ARB = 0
context_attribs[3] = 0;
ctxErrorOccurred = false;
//SkDebugf("Failed to create GL 3.0 context."
// " Using old-style GLX context.\n");
fContext = glXCreateContextAttribsARB(
fDisplay, bestFbc, 0, True, context_attribs
);
}
}
#endif
// Sync to ensure any errors generated are processed.
XSync(fDisplay, False);
// Restore the original error handler
XSetErrorHandler(oldHandler);
if (ctxErrorOccurred || !fContext) {
SkDebugf("Failed to create an OpenGL context.\n");
this->destroyGLContext();
return NULL;
}
// Verify that context is a direct context
if (!glXIsDirect(fDisplay, fContext)) {
//SkDebugf("Indirect GLX rendering context obtained.\n");
} else {
//SkDebugf("Direct GLX rendering context obtained.\n");
}
//SkDebugf("Making context current.\n");
if (!glXMakeCurrent(fDisplay, fGlxPixmap, fContext)) {
SkDebugf("Could not set the context.\n");
this->destroyGLContext();
return NULL;
}
const GrGLInterface* interface = GrGLCreateNativeInterface();
if (!interface) {
SkDebugf("Failed to create gl interface");
this->destroyGLContext();
return NULL;
}
return interface;
}
bool QGLContext::chooseContext( const QGLContext* shareContext )
{
Display* disp = d->paintDevice->x11Display();
vi = chooseVisual();
if ( !vi )
return FALSE;
if ( deviceIsPixmap() &&
(((XVisualInfo*)vi)->depth != d->paintDevice->x11Depth() ||
((XVisualInfo*)vi)->screen != d->paintDevice->x11Screen()) )
{
XFree( vi );
XVisualInfo appVisInfo;
memset( &appVisInfo, 0, sizeof(XVisualInfo) );
appVisInfo.visualid = XVisualIDFromVisual( (Visual*)d->paintDevice->x11Visual() );
appVisInfo.screen = d->paintDevice->x11Screen();
int nvis;
vi = XGetVisualInfo( disp, VisualIDMask | VisualScreenMask, &appVisInfo, &nvis );
if ( !vi )
return FALSE;
int useGL;
glXGetConfig( disp, (XVisualInfo*)vi, GLX_USE_GL, &useGL );
if ( !useGL )
return FALSE; //# Chickening out already...
}
int res;
glXGetConfig( disp, (XVisualInfo*)vi, GLX_LEVEL, &res );
glFormat.setPlane( res );
glXGetConfig( disp, (XVisualInfo*)vi, GLX_DOUBLEBUFFER, &res );
glFormat.setDoubleBuffer( res );
glXGetConfig( disp, (XVisualInfo*)vi, GLX_DEPTH_SIZE, &res );
glFormat.setDepth( res );
glXGetConfig( disp, (XVisualInfo*)vi, GLX_RGBA, &res );
glFormat.setRgba( res );
glXGetConfig( disp, (XVisualInfo*)vi, GLX_ALPHA_SIZE, &res );
glFormat.setAlpha( res );
glXGetConfig( disp, (XVisualInfo*)vi, GLX_ACCUM_RED_SIZE, &res );
glFormat.setAccum( res );
glXGetConfig( disp, (XVisualInfo*)vi, GLX_STENCIL_SIZE, &res );
glFormat.setStencil( res );
glXGetConfig( disp, (XVisualInfo*)vi, GLX_STEREO, &res );
glFormat.setStereo( res );
Bool direct = format().directRendering() ? True : False;
if ( shareContext &&
( !shareContext->isValid() || !shareContext->cx ) ) {
#if defined(QT_CHECK_NULL)
qWarning("QGLContext::chooseContext(): Cannot share with invalid context");
#endif
shareContext = 0;
}
// 1. Sharing between rgba and color-index will give wrong colors.
// 2. Contexts cannot be shared btw. direct/non-direct renderers.
// 3. Pixmaps cannot share contexts that are set up for direct rendering.
if ( shareContext && (format().rgba() != shareContext->format().rgba() ||
(deviceIsPixmap() &&
glXIsDirect( disp, (GLXContext)shareContext->cx ))))
shareContext = 0;
cx = 0;
if ( shareContext ) {
cx = glXCreateContext( disp, (XVisualInfo *)vi,
(GLXContext)shareContext->cx, direct );
if ( cx )
d->sharing = TRUE;
}
if ( !cx )
cx = glXCreateContext( disp, (XVisualInfo *)vi, None, direct );
if ( !cx )
return FALSE;
glFormat.setDirectRendering( glXIsDirect( disp, (GLXContext)cx ) );
if ( deviceIsPixmap() ) {
#if defined(GLX_MESA_pixmap_colormap) && defined(QGL_USE_MESA_EXT)
gpm = glXCreateGLXPixmapMESA( disp, (XVisualInfo *)vi,
d->paintDevice->handle(),
choose_cmap( disp, (XVisualInfo *)vi ) );
#else
gpm = (Q_UINT32)glXCreateGLXPixmap( disp, (XVisualInfo *)vi,
d->paintDevice->handle() );
#endif
if ( !gpm )
return FALSE;
}
return TRUE;
}
bool QGLContext::chooseContext(const QGLContext* shareContext)
{
Q_D(QGLContext);
const QX11Info *xinfo = qt_x11Info(d->paintDevice);
Display* disp = xinfo->display();
d->vi = chooseVisual();
if (!d->vi)
return false;
if (deviceIsPixmap() &&
(((XVisualInfo*)d->vi)->depth != xinfo->depth() ||
((XVisualInfo*)d->vi)->screen != xinfo->screen()))
{
XFree(d->vi);
XVisualInfo appVisInfo;
memset(&appVisInfo, 0, sizeof(XVisualInfo));
appVisInfo.visualid = XVisualIDFromVisual((Visual *) xinfo->visual());
appVisInfo.screen = xinfo->screen();
int nvis;
d->vi = XGetVisualInfo(disp, VisualIDMask | VisualScreenMask, &appVisInfo, &nvis);
if (!d->vi)
return false;
int useGL;
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_USE_GL, &useGL);
if (!useGL)
return false; //# Chickening out already...
}
int res;
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_LEVEL, &res);
d->glFormat.setPlane(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_DOUBLEBUFFER, &res);
d->glFormat.setDoubleBuffer(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_DEPTH_SIZE, &res);
d->glFormat.setDepth(res);
if (d->glFormat.depth())
d->glFormat.setDepthBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_RGBA, &res);
d->glFormat.setRgba(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_RED_SIZE, &res);
d->glFormat.setRedBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_GREEN_SIZE, &res);
d->glFormat.setGreenBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_BLUE_SIZE, &res);
d->glFormat.setBlueBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_ALPHA_SIZE, &res);
d->glFormat.setAlpha(res);
if (d->glFormat.alpha())
d->glFormat.setAlphaBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_ACCUM_RED_SIZE, &res);
d->glFormat.setAccum(res);
if (d->glFormat.accum())
d->glFormat.setAccumBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_STENCIL_SIZE, &res);
d->glFormat.setStencil(res);
if (d->glFormat.stencil())
d->glFormat.setStencilBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_STEREO, &res);
d->glFormat.setStereo(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_SAMPLE_BUFFERS_ARB, &res);
d->glFormat.setSampleBuffers(res);
if (d->glFormat.sampleBuffers()) {
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_SAMPLES_ARB, &res);
d->glFormat.setSamples(res);
}
Bool direct = format().directRendering() ? True : False;
if (shareContext &&
(!shareContext->isValid() || !shareContext->d_func()->cx)) {
qWarning("QGLContext::chooseContext(): Cannot share with invalid context");
shareContext = 0;
}
// 1. Sharing between rgba and color-index will give wrong colors.
// 2. Contexts cannot be shared btw. direct/non-direct renderers.
// 3. Pixmaps cannot share contexts that are set up for direct rendering.
// 4. If the contexts are not created on the same screen, they can't be shared
if (shareContext
&& (format().rgba() != shareContext->format().rgba()
|| (deviceIsPixmap() && glXIsDirect(disp, (GLXContext)shareContext->d_func()->cx))
|| (shareContext->d_func()->screen != xinfo->screen())))
{
shareContext = 0;
}
d->cx = 0;
if (shareContext) {
d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi,
(GLXContext)shareContext->d_func()->cx, direct);
d->screen = ((XVisualInfo*)d->vi)->screen;
if (d->cx) {
QGLContext *share = const_cast<QGLContext *>(shareContext);
d->sharing = true;
share->d_func()->sharing = true;
}
}
if (!d->cx) {
d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi, NULL, direct);
d->screen = ((XVisualInfo*)d->vi)->screen;
}
if (!d->cx)
return false;
d->glFormat.setDirectRendering(glXIsDirect(disp, (GLXContext)d->cx));
if (deviceIsPixmap()) {
#if defined(GLX_MESA_pixmap_colormap) && defined(QGL_USE_MESA_EXT)
d->gpm = glXCreateGLXPixmapMESA(disp, (XVisualInfo *)d->vi,
qt_x11Handle(d->paintDevice),
qt_gl_choose_cmap(disp, (XVisualInfo *)d->vi));
#else
d->gpm = (quint32)glXCreateGLXPixmap(disp, (XVisualInfo *)d->vi,
qt_x11Handle(d->paintDevice));
#endif
if (!d->gpm)
return false;
}
QString glxExt = QString(QLatin1String(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS)));
if (glxExt.contains(QLatin1String("GLX_SGI_video_sync"))) {
if (d->glFormat.swapInterval() == -1)
d->glFormat.setSwapInterval(0);
} else {
d->glFormat.setSwapInterval(-1);
}
return true;
}
// VLC wants to display a video frame.
static void vlcdisplay(void *data, void *id) {
try {
struct context *c = (struct context*)data;
unsigned int *videoTexture = c->videoTexture;
bool isStereo = c->isStereo;
//std::cerr << "**** display: " << videoTexture[0] << std::endl;
//setup GL context by OS
#if __APPLE__
// TODO: probably delete this, confirm no static init and only run-once init needed before getting rid of
//static bool init2 = false;
//if(!init2) {
// init2 = true;
// setupVideoGLContext(c->data);
//}
#else
#ifdef WIN32
makeCurrentGL = (void(*)())c->data;
makeCurrentGL();
#else
// TODO: GET RID OF THIS STATIC STUFF! MOVE INTO INIT FUNCTION OR SOMETHING
// Create the pixmap, where one designs the scene
static Pixmap pix = XCreatePixmap(c->dpy, c->root, VIDEOWIDTH, VIDEOHEIGHT, vi->depth);
static GLXPixmap px = glXCreateGLXPixmap(c->dpy, vi, pix);
static GLXContext ctx = glXCreateContext(c->dpy, vi, context, GL_TRUE);
static bool r = glXMakeCurrent(c->dpy, px, ctx);
if(!r) {
std::cerr << "* failed to create GL for video" << std::endl;
}
#endif
#endif
if(!c->init) {
c->init = true;
#if __APPLE__
setupVideoGLContext(c->data);
#endif
c->player->createVideoTextures(c->isStereo, VIDEOWIDTH, VIDEOHEIGHT);
c->player->width = VIDEOWIDTH;
c->player->height = VIDEOHEIGHT;
unsigned int width,height;
if(libvlc_video_get_size(c->mp, 0, &width, & height) == 0) {
// first = true;
c->player->width = width;
c->player->height = height;
std::cerr << "***************** " << VIDEOWIDTH << "x" << VIDEOHEIGHT << " ==> " << width << "x" << height << std::endl;
// if(VIDEOWIDTH != width && VIDEOHEIGHT != height) {
// VIDEOWIDTH = width;
// VIDEOHEIGHT = height;
// libvlc_video_set_format(c->mp, "RV32", VIDEOWIDTH, VIDEOHEIGHT, VIDEOWIDTH*sizeof(uint32_t));
// return;
// }
}
}
const GLuint width = VIDEOWIDTH;
const GLuint height = VIDEOHEIGHT;
// const GLuint width = c->player->width;
// const GLuint height = c->player->height;
if(isStereo) {
glBindTexture(GL_TEXTURE_2D, videoTexture[1]);
// std::cerr << width << " " << stride << std::endl;
glPixelStorei(GL_UNPACK_ROW_LENGTH,width*2);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
if(first) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height/2, 0,
GL_BGRA, IBEX_VIDEO_GL_PIX_FORMAT, pixels);
glBindTexture(GL_TEXTURE_2D, videoTexture[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height/2, 0,
GL_BGRA, IBEX_VIDEO_GL_PIX_FORMAT, &pixels[width]);
} else {
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height/2,
GL_BGRA, IBEX_VIDEO_GL_PIX_FORMAT, pixels);
glBindTexture(GL_TEXTURE_2D, videoTexture[0]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height/2,
GL_BGRA, IBEX_VIDEO_GL_PIX_FORMAT , &pixels[width]);
}
} else {
glBindTexture(GL_TEXTURE_2D, videoTexture[0]);
glPixelStorei(GL_UNPACK_ROW_LENGTH,width);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
if(first) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0,
GL_BGRA, IBEX_VIDEO_GL_PIX_FORMAT, pixels);
} else {
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height,
GL_BGRA, IBEX_VIDEO_GL_PIX_FORMAT, pixels);
}
}
first = false;
glFlush();
//struct context *c = (context *)data;
// WIDTH/HEIGHT VIDEOWIDTH/VIDEOHEIGHT
}catch(...) {
}
}
Bool
asimage2drawable_gl( ASVisual *asv, Drawable d, ASImage *im,
int src_x, int src_y, int dest_x, int dest_y,
int width, int height, int d_width, int d_height,
Bool force_direct )
{
if( im != NULL && get_flags( asv->glx_support, ASGLX_Available ) && d != None )
{
#ifdef HAVE_GLX
int glbuf_size = (get_flags( asv->glx_support, ASGLX_RGBA )? 4 : 3 ) * width * height;
CARD8 *glbuf = NULL;
ASImageDecoder *imdec = NULL ;
GLXPixmap glxp = None;
if ((imdec = start_image_decoding( asv, im,
get_flags( asv->glx_support, ASGLX_RGBA )?SCL_DO_ALL:SCL_DO_COLOR,
src_x, src_y, width, height, NULL)) != NULL )
{
int i, l = glbuf_size;
glbuf = safemalloc( glbuf_size );
for (i = 0; i < (int)height; i++)
{
int k = width;
imdec->decode_image_scanline( imdec );
if( get_flags( asv->glx_support, ASGLX_RGBA ) )
{
while( --k >= 0 )
{
glbuf[--l] = imdec->buffer.alpha[k] ;
glbuf[--l] = imdec->buffer.blue[k] ;
glbuf[--l] = imdec->buffer.green[k] ;
glbuf[--l] = imdec->buffer.red[k] ;
}
}else
{
while( --k >= 0 )
{
glbuf[--l] = imdec->buffer.blue[k] ;
glbuf[--l] = imdec->buffer.green[k] ;
glbuf[--l] = imdec->buffer.red[k] ;
}
}
}
stop_image_decoding( &imdec );
}else
return False;
if( !force_direct )
{
glxp = glXCreateGLXPixmap( asv->dpy, &(asv->visual_info), d);
/* d is either invalid drawable or is a window */
if( glxp == None )
force_direct = True ;
}
if( glxp == None )
{
if( asv->glx_scratch_gc_direct != NULL )
glXMakeCurrent (asv->dpy, d, asv->glx_scratch_gc_direct);
else
glXMakeCurrent (asv->dpy, d, asv->glx_scratch_gc_indirect);
}else
glXMakeCurrent (asv->dpy, glxp, asv->glx_scratch_gc_indirect);
if( glGetError() != 0 )
return False;
if ( get_flags( asv->glx_support, ASGLX_DoubleBuffer ) )
glDrawBuffer (GL_FRONT);
glDisable(GL_BLEND); /* optimize pixel transfer rates */
glDisable (GL_DEPTH_TEST);
glDisable (GL_DITHER);
glDisable (GL_FOG);
glDisable (GL_LIGHTING);
glViewport( 0, 0, d_width, d_height);
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
/* gluOrtho2D (0, d_width, 0, d_height); */
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
glTranslatef (0.375, 0.375, 0.0);
#if 1
if( !IS_POWER_OF2(width) || !IS_POWER_OF2(height))
{
/* now put pixels on */
glRasterPos2i( dest_x, d_height - (dest_y+height) );
glDrawPixels( width, height,
get_flags( asv->glx_support, ASGLX_RGBA )?GL_RGBA:GL_RGB,
GL_UNSIGNED_BYTE, glbuf );
}else
#endif
{ /* this stuff might be faster : */
GLuint texture ;
#define TARGET_TEXTURE_ID GL_TEXTURE_2D
#if TARGET_TEXTURE_ID!=GL_TEXTURE_2D
glEnable(GL_TEXTURE_2D);
#endif
glEnable(TARGET_TEXTURE_ID);
glGenTextures(1, &texture);
glBindTexture(TARGET_TEXTURE_ID, texture);
glTexParameteri(TARGET_TEXTURE_ID, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(TARGET_TEXTURE_ID, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(TARGET_TEXTURE_ID, 0, get_flags( asv->glx_support, ASGLX_RGBA )?GL_RGBA:GL_RGB,
/* width and height must be the power of 2 !!! */
width, height,
0, GL_RGBA, GL_UNSIGNED_BYTE, glbuf);
glBegin(GL_QUADS);
/* bottom-left */
glTexCoord2d(0., 0.); glVertex2i(dest_x, d_height - (dest_y+height) );
/* bottom-right */
glTexCoord2d(1.0, 0.0); glVertex2i(dest_x+width, d_height - (dest_y+height));
/* top-right */
glTexCoord2d(1.0, 1.0); glVertex2i(dest_x+width, d_height - dest_y);
/* top-left */
glTexCoord2d(0.0, 1.0); glVertex2i(dest_x, d_height - dest_y);
glEnd();
glBindTexture(TARGET_TEXTURE_ID, 0);
glFinish();
}
free( glbuf );
glXMakeCurrent (asv->dpy, None, NULL);
if( glxp )
glXDestroyGLXPixmap( asv->dpy, glxp);
glFinish();
return True;
#endif /* #ifdef HAVE_GLX */
}
{
static Bool warning_shown = False ;
if( !warning_shown )
{
warning_shown = True ;
show_warning( "Support for GLX is unavailable.");
}
}
return False;
}
int
main(int argc, char **argv)
{
Pixmap p;
GLXPixmap g;
static const float green_alpha_zero[4] = {0.0, 1.0, 0.0, 0.0};
static const float green_alpha_one[4] = {0.0, 1.0, 0.0, 1.0};
GLXContext ctx;
bool pass;
GLint alpha_bits;
dpy = XOpenDisplay(NULL);
if (dpy == NULL) {
fprintf(stderr, "couldn't open display\n");
piglit_report_result(PIGLIT_FAIL);
}
piglit_glx_get_error(dpy, NULL);
piglit_require_glx_version(dpy, 1, 3);
visinfo = piglit_get_glx_visual(dpy);
p = XCreatePixmap(dpy, DefaultRootWindow(dpy), piglit_width,
piglit_height, visinfo->depth);
g = glXCreateGLXPixmap(dpy, visinfo, p);
ctx = piglit_get_glx_context(dpy, visinfo);
glXMakeCurrent(dpy, g, ctx);
piglit_dispatch_default_init(PIGLIT_DISPATCH_GL);
/* Clear to green */
glClearColor(0.0, 1.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
/* Noop */
glXSwapBuffers(dpy, g);
/* We want to actually catch any X error that leaks through as
* a result of glXSwapBuffers() before we go saying "pass" or
* "fail".
*/
XSync(dpy, False);
/* If the visual has no alpha, then the GL spec requires that 1.0 be
* read back. Otherwise, we should read back the 0.0 that we wrote.
*/
glGetIntegerv(GL_ALPHA_BITS, &alpha_bits);
if (alpha_bits == 0) {
pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
green_alpha_one);
} else {
pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
green_alpha_zero);
}
glXDestroyPixmap(dpy, g);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
return 0;
}
Bool
bindPixmapToTexture (CompScreen *screen,
CompTexture *texture,
Pixmap pixmap,
int width,
int height,
int depth)
{
XVisualInfo *visinfo;
unsigned int target;
int success = 0;
visinfo = screen->glxPixmapVisuals[depth];
if (!visinfo)
{
fprintf (stderr, "%s: No GL visual for depth %d\n",
programName, depth);
return FALSE;
}
texture->pixmap = glXCreateGLXPixmap (screen->display->display,
visinfo, pixmap);
if (!texture->pixmap)
{
fprintf (stderr, "%s: glXCreateGLXPixmap failed\n", programName);
return FALSE;
}
if (screen->queryDrawable (screen->display->display,
texture->pixmap,
GLX_TEXTURE_TARGET_EXT,
&target))
{
fprintf (stderr, "%s: glXQueryDrawable failed\n", programName);
glXDestroyGLXPixmap (screen->display->display, texture->pixmap);
texture->pixmap = None;
return FALSE;
}
switch (target) {
case GLX_TEXTURE_2D_EXT:
texture->target = GL_TEXTURE_2D;
texture->matrix.xx = 1.0f / width;
texture->matrix.yy = -1.0f / height;
texture->matrix.y0 = 1.0f;
break;
case GLX_TEXTURE_RECTANGLE_EXT:
texture->target = GL_TEXTURE_RECTANGLE_ARB;
texture->matrix.xx = 1.0f;
texture->matrix.yy = -1.0f;
texture->matrix.y0 = height;
break;
default:
fprintf (stderr, "%s: pixmap 0x%x can't be bound to texture\n",
programName, (int) pixmap);
glXDestroyGLXPixmap (screen->display->display, texture->pixmap);
texture->pixmap = None;
return FALSE;
}
if (!texture->name)
glGenTextures (1, &texture->name);
glBindTexture (texture->target, texture->name);
if (screen->bindTexImageExt)
success = screen->bindTexImageExt(screen->display->display,
texture->pixmap,
GLX_FRONT_LEFT_EXT,
NULL);
else if (screen->bindTexImageMesa)
success = screen->bindTexImageMesa(screen->display->display,
texture->pixmap,
GLX_FRONT_LEFT_EXT);
if (!success)
{
fprintf (stderr, "%s: glXBindTexImage failed\n", programName);
glXDestroyGLXPixmap (screen->display->display, texture->pixmap);
texture->pixmap = None;
return FALSE;
}
texture->filter = COMP_TEXTURE_FILTER_FAST;
glTexParameteri (texture->target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri (texture->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri (texture->target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (texture->target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture (texture->target, 0);
return TRUE;
}
const GrGLInterface* SkNativeGLContext::createGLContext(GrGLStandard forcedGpuAPI) {
fDisplay = XOpenDisplay(0);
if (!fDisplay) {
SkDebugf("Failed to open X display.\n");
this->destroyGLContext();
return NULL;
}
// Get a matching FB config
static int visual_attribs[] = {
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_PIXMAP_BIT,
None
};
int glx_major, glx_minor;
// FBConfigs were added in GLX version 1.3.
if (!glXQueryVersion(fDisplay, &glx_major, &glx_minor) ||
((glx_major == 1) && (glx_minor < 3)) || (glx_major < 1)) {
SkDebugf("GLX version 1.3 or higher required.\n");
this->destroyGLContext();
return NULL;
}
//SkDebugf("Getting matching framebuffer configs.\n");
int fbcount;
GLXFBConfig *fbc = glXChooseFBConfig(fDisplay, DefaultScreen(fDisplay),
visual_attribs, &fbcount);
if (!fbc) {
SkDebugf("Failed to retrieve a framebuffer config.\n");
this->destroyGLContext();
return NULL;
}
//SkDebugf("Found %d matching FB configs.\n", fbcount);
// Pick the FB config/visual with the most samples per pixel
//SkDebugf("Getting XVisualInfos.\n");
int best_fbc = -1, best_num_samp = -1;
int i;
for (i = 0; i < fbcount; ++i) {
XVisualInfo *vi = glXGetVisualFromFBConfig(fDisplay, fbc[i]);
if (vi) {
int samp_buf, samples;
glXGetFBConfigAttrib(fDisplay, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf);
glXGetFBConfigAttrib(fDisplay, fbc[i], GLX_SAMPLES, &samples);
//SkDebugf(" Matching fbconfig %d, visual ID 0x%2x: SAMPLE_BUFFERS = %d,"
// " SAMPLES = %d\n",
// i, (unsigned int)vi->visualid, samp_buf, samples);
if (best_fbc < 0 || (samp_buf && samples > best_num_samp))
best_fbc = i, best_num_samp = samples;
}
XFree(vi);
}
GLXFBConfig bestFbc = fbc[best_fbc];
// Be sure to free the FBConfig list allocated by glXChooseFBConfig()
XFree(fbc);
// Get a visual
XVisualInfo *vi = glXGetVisualFromFBConfig(fDisplay, bestFbc);
//SkDebugf("Chosen visual ID = 0x%x\n", (unsigned int)vi->visualid);
fPixmap = XCreatePixmap(fDisplay, RootWindow(fDisplay, vi->screen), 10, 10, vi->depth);
if (!fPixmap) {
SkDebugf("Failed to create pixmap.\n");
this->destroyGLContext();
return NULL;
}
fGlxPixmap = glXCreateGLXPixmap(fDisplay, vi, fPixmap);
// Done with the visual info data
XFree(vi);
// Create the context
// Install an X error handler so the application won't exit if GL 3.0
// context allocation fails.
//
// Note this error handler is global.
// All display connections in all threads of a process use the same
// error handler, so be sure to guard against other threads issuing
// X commands while this code is running.
ctxErrorOccurred = false;
int (*oldHandler)(Display*, XErrorEvent*) =
XSetErrorHandler(&ctxErrorHandler);
// Get the default screen's GLX extension list
const char *glxExts = glXQueryExtensionsString(
fDisplay, DefaultScreen(fDisplay)
);
// Check for the GLX_ARB_create_context extension string and the function.
// If either is not present, use GLX 1.3 context creation method.
if (!gluCheckExtension(reinterpret_cast<const GLubyte*>("GLX_ARB_create_context"),
reinterpret_cast<const GLubyte*>(glxExts))) {
if (kGLES_GrGLStandard != forcedGpuAPI) {
fContext = glXCreateNewContext(fDisplay, bestFbc, GLX_RGBA_TYPE, 0, True);
}
} else {
//SkDebugf("Creating context.\n");
PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB =
(PFNGLXCREATECONTEXTATTRIBSARBPROC) glXGetProcAddressARB((GrGLubyte*)"glXCreateContextAttribsARB");
if (kGLES_GrGLStandard == forcedGpuAPI) {
if (gluCheckExtension(
reinterpret_cast<const GLubyte*>("GLX_EXT_create_context_es2_profile"),
reinterpret_cast<const GLubyte*>(glxExts))) {
static const int context_attribs_gles[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_ES2_PROFILE_BIT_EXT,
None
};
fContext = glXCreateContextAttribsARB(fDisplay, bestFbc, 0, True,
context_attribs_gles);
}
} else {
// Well, unfortunately GLX will not just give us the highest context so instead we have
// to do this nastiness
for (i = NUM_GL_VERSIONS - 2; i > 0 ; i--) {
/* don't bother below GL 3.0 */
if (gl_versions[i].major == 3 && gl_versions[i].minor == 0) {
break;
}
// On Nvidia GPUs, to use Nv Path rendering we need a compatibility profile for the
// time being.
// TODO when Nvidia implements NVPR on Core profiles, we should start requesting
// core here
static const int context_attribs_gl[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, gl_versions[i].major,
GLX_CONTEXT_MINOR_VERSION_ARB, gl_versions[i].minor,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
None
};
fContext =
glXCreateContextAttribsARB(fDisplay, bestFbc, 0, True, context_attribs_gl);
// Sync to ensure any errors generated are processed.
XSync(fDisplay, False);
if (!ctxErrorOccurred && fContext) {
break;
}
// try again
ctxErrorOccurred = false;
}
// Couldn't create GL 3.0 context.
// Fall back to old-style 2.x context.
// When a context version below 3.0 is requested,
// implementations will return the newest context version
// compatible with OpenGL versions less than version 3.0.
if (ctxErrorOccurred || !fContext) {
static const int context_attribs_gl_fallback[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, 1,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
None
};
ctxErrorOccurred = false;
fContext = glXCreateContextAttribsARB(fDisplay, bestFbc, 0, True,
context_attribs_gl_fallback);
}
}
}
// Sync to ensure any errors generated are processed.
XSync(fDisplay, False);
// Restore the original error handler
XSetErrorHandler(oldHandler);
if (ctxErrorOccurred || !fContext) {
SkDebugf("Failed to create an OpenGL context.\n");
this->destroyGLContext();
return NULL;
}
// Verify that context is a direct context
if (!glXIsDirect(fDisplay, fContext)) {
//SkDebugf("Indirect GLX rendering context obtained.\n");
} else {
//SkDebugf("Direct GLX rendering context obtained.\n");
}
//SkDebugf("Making context current.\n");
if (!glXMakeCurrent(fDisplay, fGlxPixmap, fContext)) {
SkDebugf("Could not set the context.\n");
this->destroyGLContext();
return NULL;
}
const GrGLInterface* interface = GrGLCreateNativeInterface();
if (!interface) {
SkDebugf("Failed to create gl interface");
this->destroyGLContext();
return NULL;
}
return interface;
}
Handle
gl_context_create( Handle widget, GLRequest * request)
{
int attr_list[64], *attr = attr_list;
XVisualInfo * visual;
GLXContext context;
Context * ret;
if ( pguts == NULL )
pguts = (UnixGuts*) apc_system_action("unix_guts");
CLEAR_ERROR;
XCHECKPOINT;
#define ATTR(in,out) \
if ( request-> in) { \
*(attr++) = out; \
*(attr++) = request-> in; \
}
*(attr++) = GLX_USE_GL;
if ( request-> pixels == GLREQ_PIXEL_RGBA) *(attr++) = GLX_RGBA;
if ( request-> double_buffer == GLREQ_TRUE) *(attr++) = GLX_DOUBLEBUFFER;
if ( request-> stereo == GLREQ_TRUE) *(attr++) = GLX_STEREO;
ATTR( layer , GLX_LEVEL )
ATTR( color_bits , GLX_BUFFER_SIZE )
ATTR( aux_buffers , GLX_AUX_BUFFERS )
ATTR( red_bits , GLX_RED_SIZE )
ATTR( green_bits , GLX_GREEN_SIZE )
ATTR( blue_bits , GLX_BLUE_SIZE )
ATTR( alpha_bits , GLX_ALPHA_SIZE )
ATTR( depth_bits , GLX_DEPTH_SIZE )
ATTR( stencil_bits , GLX_STENCIL_SIZE )
ATTR( accum_red_bits , GLX_ACCUM_RED_SIZE )
ATTR( accum_green_bits, GLX_ACCUM_GREEN_SIZE )
ATTR( accum_blue_bits , GLX_ACCUM_BLUE_SIZE )
ATTR( accum_alpha_bits, GLX_ACCUM_ALPHA_SIZE )
*(attr++) = 0;
if ( request-> target == GLREQ_TARGET_WINDOW && sys-> flags. layered) {
visual = sys-> visual;
} else if ( !( visual = glXChooseVisual( DISP, SCREEN, attr_list ))) {
if ( request-> pixels != GLREQ_PIXEL_RGBA) {
/* emulate win32 which does it softly, i.e. if RGBA fails, it proposes PALETTED */
request-> pixels = GLREQ_PIXEL_RGBA;
return gl_context_create( widget, request);
}
if ( request-> double_buffer == GLREQ_DONTCARE) {
request-> double_buffer = GLREQ_TRUE;
return gl_context_create( widget, request );
}
SET_ERROR( ERROR_CHOOSE_VISUAL );
return (Handle) 0;
}
XCHECKPOINT;
if ( !( context = glXCreateContext( DISP, visual, 0, request-> render != GLREQ_RENDER_XSERVER))) {
SET_ERROR( ERROR_CREATE_CONTEXT );
return (Handle) 0;
}
ret = malloc( sizeof( Context ));
memset( ret, 0, sizeof( Context));
ret-> context = context;
switch ( request-> target) {
case GLREQ_TARGET_WINDOW:
ret-> drawable = var-> handle;
break;
case GLREQ_TARGET_APPLICATION:
/* doesn't work with gnome and kde anyway */
ret-> drawable = RootWindow( DISP, SCREEN);
break;
case GLREQ_TARGET_BITMAP:
case GLREQ_TARGET_IMAGE:
{
GLXContext old_context;
GLXDrawable old_drawable;
Bool success;
XCHECKPOINT;
ret-> drawable = glXCreateGLXPixmap( DISP, visual, sys-> gdrawable);
ret-> pixmap = 1;
/* check if pixmaps are supported on this visual at all */
old_context = glXGetCurrentContext();
old_drawable = glXGetCurrentDrawable();
success = glXMakeCurrent( DISP, ret-> drawable, ret-> context);
glXMakeCurrent( DISP, old_drawable, old_context);
if ( !success ) {
SET_ERROR( ERROR_NO_PIXMAPS );
glXDestroyGLXPixmap( DISP, ret-> drawable);
glXDestroyContext( DISP, ret-> context );
free(ret);
return 0;
}
break;
}
case GLREQ_TARGET_PRINTER:
SET_ERROR(ERROR_NO_PRINTER);
free(ret);
return 0;
}
return (Handle) ret;
}
/**
* gdk_gl_pixmap_new:
* @glconfig: a #GdkGLConfig.
* @pixmap: the #GdkPixmap to be used as the rendering area.
* @attrib_list: this must be set to NULL or empty (first attribute of None).
*
* Creates an off-screen rendering area.
* attrib_list is currently unused. This must be set to NULL or empty
* (first attribute of None). See GLX 1.3 spec.
*
* Return value: the new #GdkGLPixmap.
**/
GdkGLPixmap *
gdk_gl_pixmap_new (GdkGLConfig *glconfig,
GdkPixmap *pixmap,
const int *attrib_list)
{
GdkGLPixmap *glpixmap;
GdkGLPixmapImplX11 *impl;
Display *xdisplay;
XVisualInfo *xvinfo;
Pixmap xpixmap;
GLXPixmap glxpixmap;
Window root_return;
int x_return, y_return;
unsigned int width_return, height_return;
unsigned int border_width_return;
unsigned int depth_return;
GdkGL_GLX_MESA_pixmap_colormap *mesa_ext;
GDK_GL_NOTE_FUNC ();
g_return_val_if_fail (GDK_IS_GL_CONFIG_IMPL_X11 (glconfig), NULL);
g_return_val_if_fail (GDK_IS_PIXMAP (pixmap), NULL);
xdisplay = GDK_GL_CONFIG_XDISPLAY (glconfig);
xvinfo = GDK_GL_CONFIG_XVINFO (glconfig);
/*
* Get X Pixmap.
*/
xpixmap = GDK_DRAWABLE_XID (GDK_DRAWABLE (pixmap));
/*
* Check depth of the X pixmap.
*/
if (!XGetGeometry (xdisplay, xpixmap,
&root_return,
&x_return, &y_return,
&width_return, &height_return,
&border_width_return,
&depth_return))
return NULL;
if (depth_return != (unsigned int) xvinfo->depth)
return NULL;
/*
* Create GLXPixmap.
*/
mesa_ext = gdk_gl_get_GLX_MESA_pixmap_colormap (glconfig);
if (mesa_ext)
{
/* If GLX_MESA_pixmap_colormap is supported. */
GDK_GL_NOTE_FUNC_IMPL ("glXCreateGLXPixmapMESA");
glxpixmap = mesa_ext->glXCreateGLXPixmapMESA (xdisplay,
xvinfo,
xpixmap,
GDK_GL_CONFIG_XCOLORMAP (glconfig));
}
else
{
GDK_GL_NOTE_FUNC_IMPL ("glXCreateGLXPixmap");
glxpixmap = glXCreateGLXPixmap (xdisplay,
xvinfo,
xpixmap);
}
if (glxpixmap == None)
return NULL;
/*
* Instantiate the GdkGLPixmapImplX11 object.
*/
glpixmap = g_object_new (GDK_TYPE_GL_PIXMAP_IMPL_X11, NULL);
impl = GDK_GL_PIXMAP_IMPL_X11 (glpixmap);
glpixmap->drawable = GDK_DRAWABLE (pixmap);
g_object_add_weak_pointer (G_OBJECT (glpixmap->drawable),
(gpointer *) &(glpixmap->drawable));
impl->glxpixmap = glxpixmap;
impl->glconfig = glconfig;
g_object_ref (G_OBJECT (impl->glconfig));
impl->is_destroyed = FALSE;
return glpixmap;
}