mirror of https://gitlab.freedesktop.org/mesa/mesa
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
#include <string.h>
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#include <stdlib.h>
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#include <X11/Xlib.h>
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#include "glvnd/libglxabi.h"
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#include "glxglvnd.h"
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static Bool __glXGLVNDIsScreenSupported(Display *dpy, int screen)
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{
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/* TODO: Think of a better heuristic... */
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return True;
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}
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static void *__glXGLVNDGetProcAddress(const GLubyte *procName)
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{
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return glXGetProcAddressARB(procName);
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}
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static int
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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 unsigned FindGLXFunction(const GLubyte *name)
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{
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const char **match;
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match = bsearch(name, __glXDispatchTableStrings, DI_FUNCTION_COUNT,
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sizeof(const char *), compare);
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if (match == NULL)
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return DI_FUNCTION_COUNT;
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return match - __glXDispatchTableStrings;
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}
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static void *__glXGLVNDGetDispatchAddress(const GLubyte *procName)
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{
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unsigned internalIndex = FindGLXFunction(procName);
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return (void*)__glXDispatchFunctions[internalIndex];
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}
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static void __glXGLVNDSetDispatchIndex(const GLubyte *procName, int index)
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{
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unsigned internalIndex = FindGLXFunction(procName);
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if (internalIndex == DI_FUNCTION_COUNT)
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return; /* unknown or static dispatch */
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__glXDispatchTableIndices[internalIndex] = index;
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}
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_X_EXPORT Bool __glx_Main(uint32_t version, const __GLXapiExports *exports,
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__GLXvendorInfo *vendor, __GLXapiImports *imports)
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{
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static Bool initDone = False;
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if (GLX_VENDOR_ABI_GET_MAJOR_VERSION(version) !=
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GLX_VENDOR_ABI_MAJOR_VERSION ||
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GLX_VENDOR_ABI_GET_MINOR_VERSION(version) <
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GLX_VENDOR_ABI_MINOR_VERSION)
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return False;
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if (!initDone) {
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initDone = True;
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__glXGLVNDAPIExports = exports;
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imports->isScreenSupported = __glXGLVNDIsScreenSupported;
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imports->getProcAddress = __glXGLVNDGetProcAddress;
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imports->getDispatchAddress = __glXGLVNDGetDispatchAddress;
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imports->setDispatchIndex = __glXGLVNDSetDispatchIndex;
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imports->notifyError = NULL;
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imports->isPatchSupported = NULL;
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imports->initiatePatch = NULL;
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}
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return True;
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}
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