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#include "egldispatchstubs.h"
#include "g_egldispatchstubs.h"
#include <string.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 FindProcIndex(const char *name)
{
unsigned first = 0;
unsigned last = __EGL_DISPATCH_COUNT - 1;
while (first <= last) {
unsigned middle = (first + last) / 2;
int comp = strcmp(name,
__EGL_DISPATCH_FUNC_NAMES[middle]);
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 __EGL_DISPATCH_COUNT;
}
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) {
_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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