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#include "egldispatchstubs.h"
#include "g_egldispatchstubs.h"
#include <string.h>
#include <stdlib.h>
#include "eglcurrent.h"
static const __EGLapiExports *exports;
const int __EGL_DISPATCH_FUNC_COUNT = __EGL_DISPATCH_COUNT;
int __EGL_DISPATCH_FUNC_INDICES[__EGL_DISPATCH_COUNT + 1];
static int Compare(const void *l, const void *r)
{
const char *s = *(const char **)r;
return strcmp(l, s);
}
static int FindProcIndex(const char *name)
{
const char **match = bsearch(name, __EGL_DISPATCH_FUNC_NAMES,
__EGL_DISPATCH_COUNT, sizeof(const char *), Compare);
if (match == NULL)
return __EGL_DISPATCH_COUNT;
return match - __EGL_DISPATCH_FUNC_NAMES;
}
void __eglInitDispatchStubs(const __EGLapiExports *exportsTable)
{
int i;
exports = exportsTable;
for (i=0; i<__EGL_DISPATCH_FUNC_COUNT; i++) {
__EGL_DISPATCH_FUNC_INDICES[i] = -1;
}
}
void __eglSetDispatchIndex(const char *name, int dispatchIndex)
{
int index = FindProcIndex(name);
__EGL_DISPATCH_FUNC_INDICES[index] = dispatchIndex;
}
void *__eglDispatchFindDispatchFunction(const char *name)
{
int index = FindProcIndex(name);
return (void *) __EGL_DISPATCH_FUNCS[index];
}
static __eglMustCastToProperFunctionPointerType FetchVendorFunc(__EGLvendorInfo *vendor,
int index, EGLint errorCode)
{
__eglMustCastToProperFunctionPointerType func = NULL;
if (vendor != NULL) {
func = exports->fetchDispatchEntry(vendor, __EGL_DISPATCH_FUNC_INDICES[index]);
}
if (func == NULL) {
if (errorCode != EGL_SUCCESS) {
// Since we have no vendor, the follow-up eglGetError() call will
// end up using the GLVND error code. Set it here.
if (vendor == NULL) {
exports->setEGLError(errorCode);
}
_eglError(errorCode, __EGL_DISPATCH_FUNC_NAMES[index]);
}
return NULL;
}
if (!exports->setLastVendor(vendor)) {
// Don't bother trying to set an error code in libglvnd. If
// setLastVendor failed, then setEGLError would also fail.
_eglError(errorCode, __EGL_DISPATCH_FUNC_NAMES[index]);
return NULL;
}
return func;
}
__eglMustCastToProperFunctionPointerType __eglDispatchFetchByCurrent(int index)
{
__EGLvendorInfo *vendor;
// Note: This is only used for the eglWait* functions. For those, if
// there's no current context, then they're supposed to do nothing but
// return success.
exports->threadInit();
vendor = exports->getCurrentVendor();
return FetchVendorFunc(vendor, index, EGL_SUCCESS);
}
__eglMustCastToProperFunctionPointerType __eglDispatchFetchByDisplay(EGLDisplay dpy, int index)
{
__EGLvendorInfo *vendor;
exports->threadInit();
vendor = exports->getVendorFromDisplay(dpy);
return FetchVendorFunc(vendor, index, EGL_BAD_DISPLAY);
}
__eglMustCastToProperFunctionPointerType __eglDispatchFetchByDevice(EGLDeviceEXT dev, int index)
{
__EGLvendorInfo *vendor;
exports->threadInit();
vendor = exports->getVendorFromDevice(dev);
return FetchVendorFunc(vendor, index, EGL_BAD_DEVICE_EXT);
}
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