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#include <string.h>
#include <X11/Xlib.h>
#include "glvnd/libglxabi.h"
#include "glxglvnd.h"
static Bool __glXGLVNDIsScreenSupported(Display *dpy, int screen)
{
/* TODO: Think of a better heuristic... */
return True;
}
static void *__glXGLVNDGetProcAddress(const GLubyte *procName)
{
return glXGetProcAddressARB(procName);
}
static unsigned FindGLXFunction(const GLubyte *name)
{
int first = 0;
int last = DI_FUNCTION_COUNT - 1;
while (first <= last) {
int middle = (first + last) / 2;
int comp = strcmp(__glXDispatchTableStrings[middle],
(const char *) name);
if (comp < 0)
first = middle + 1;
else if (comp > 0)
last = middle - 1;
else
return middle;
}
/* Just point to the dummy entry at the end of the respective table */
return DI_FUNCTION_COUNT;
}
static void *__glXGLVNDGetDispatchAddress(const GLubyte *procName)
{
unsigned internalIndex = FindGLXFunction(procName);
return __glXDispatchFunctions[internalIndex];
}
static void __glXGLVNDSetDispatchIndex(const GLubyte *procName, int index)
{
unsigned internalIndex = FindGLXFunction(procName);
if (internalIndex == DI_FUNCTION_COUNT)
return; /* unknown or static dispatch */
__glXDispatchTableIndices[internalIndex] = index;
}
_X_EXPORT Bool __glx_Main(uint32_t version, const __GLXapiExports *exports,
__GLXvendorInfo *vendor, __GLXapiImports *imports)
{
static Bool initDone = False;
if (GLX_VENDOR_ABI_GET_MAJOR_VERSION(version) !=
GLX_VENDOR_ABI_MAJOR_VERSION ||
GLX_VENDOR_ABI_GET_MINOR_VERSION(version) <
GLX_VENDOR_ABI_MINOR_VERSION)
return False;
if (!initDone) {
initDone = True;
__glXGLVNDAPIExports = exports;
imports->isScreenSupported = __glXGLVNDIsScreenSupported;
imports->getProcAddress = __glXGLVNDGetProcAddress;
imports->getDispatchAddress = __glXGLVNDGetDispatchAddress;
imports->setDispatchIndex = __glXGLVNDSetDispatchIndex;
imports->notifyError = NULL;
imports->isPatchSupported = NULL;
imports->initiatePatch = NULL;
}
return True;
}
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