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b3ade65387
If the user provides an invalid display or device the ToVendor lookup
will fail.
In this case, the local [Mesa vendor] error code will be set. Thus on
sequential eglGetError(), the error will be EGL_SUCCESS.
To be more specific, GLVND remembers the last vendor and calls back
into it's eglGetError, although there's no guarantee to ever have had
one.
v2:
- Add _eglError call, so the debug callback is executed (Kyle)
- Drop XXX comment.
Piglit: tests/egl/spec/egl_ext_device_query
Fixes: ce562f9e3f ("EGL: Implement the libglvnd interface for EGL (v3)")
Cc: Eric Engestrom <eric@engestrom.ch>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Kyle Brenneman <kbrenneman@nvidia.com>
111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
#include "egldispatchstubs.h"
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#include "g_egldispatchstubs.h"
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#include <string.h>
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#include <stdlib.h>
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#include "eglcurrent.h"
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static const __EGLapiExports *exports;
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const int __EGL_DISPATCH_FUNC_COUNT = __EGL_DISPATCH_COUNT;
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int __EGL_DISPATCH_FUNC_INDICES[__EGL_DISPATCH_COUNT + 1];
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static int Compare(const void *l, const void *r)
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{
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const char *s = *(const char **)r;
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return strcmp(l, s);
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}
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static int FindProcIndex(const char *name)
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{
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const char **match = bsearch(name, __EGL_DISPATCH_FUNC_NAMES,
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__EGL_DISPATCH_COUNT, sizeof(const char *), Compare);
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if (match == NULL)
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return __EGL_DISPATCH_COUNT;
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return match - __EGL_DISPATCH_FUNC_NAMES;
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}
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void __eglInitDispatchStubs(const __EGLapiExports *exportsTable)
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{
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int i;
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exports = exportsTable;
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for (i=0; i<__EGL_DISPATCH_FUNC_COUNT; i++) {
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__EGL_DISPATCH_FUNC_INDICES[i] = -1;
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}
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}
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void __eglSetDispatchIndex(const char *name, int dispatchIndex)
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{
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int index = FindProcIndex(name);
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__EGL_DISPATCH_FUNC_INDICES[index] = dispatchIndex;
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}
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void *__eglDispatchFindDispatchFunction(const char *name)
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{
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int index = FindProcIndex(name);
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return (void *) __EGL_DISPATCH_FUNCS[index];
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}
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static __eglMustCastToProperFunctionPointerType FetchVendorFunc(__EGLvendorInfo *vendor,
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int index, EGLint errorCode)
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{
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__eglMustCastToProperFunctionPointerType func = NULL;
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if (vendor != NULL) {
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func = exports->fetchDispatchEntry(vendor, __EGL_DISPATCH_FUNC_INDICES[index]);
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}
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if (func == NULL) {
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if (errorCode != EGL_SUCCESS) {
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// Since we have no vendor, the follow-up eglGetError() call will
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// end up using the GLVND error code. Set it here.
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if (vendor == NULL) {
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exports->setEGLError(errorCode);
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}
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_eglError(errorCode, __EGL_DISPATCH_FUNC_NAMES[index]);
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}
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return NULL;
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}
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if (!exports->setLastVendor(vendor)) {
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// Don't bother trying to set an error code in libglvnd. If
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// setLastVendor failed, then setEGLError would also fail.
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_eglError(errorCode, __EGL_DISPATCH_FUNC_NAMES[index]);
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return NULL;
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}
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return func;
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}
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__eglMustCastToProperFunctionPointerType __eglDispatchFetchByCurrent(int index)
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{
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__EGLvendorInfo *vendor;
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// Note: This is only used for the eglWait* functions. For those, if
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// there's no current context, then they're supposed to do nothing but
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// return success.
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exports->threadInit();
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vendor = exports->getCurrentVendor();
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return FetchVendorFunc(vendor, index, EGL_SUCCESS);
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}
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__eglMustCastToProperFunctionPointerType __eglDispatchFetchByDisplay(EGLDisplay dpy, int index)
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{
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__EGLvendorInfo *vendor;
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exports->threadInit();
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vendor = exports->getVendorFromDisplay(dpy);
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return FetchVendorFunc(vendor, index, EGL_BAD_DISPLAY);
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}
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__eglMustCastToProperFunctionPointerType __eglDispatchFetchByDevice(EGLDeviceEXT dev, int index)
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{
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__EGLvendorInfo *vendor;
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exports->threadInit();
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vendor = exports->getVendorFromDevice(dev);
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return FetchVendorFunc(vendor, index, EGL_BAD_DEVICE_EXT);
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}
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