Merge change 534 into donut

* changes:
  Make sure to map undefined OES functions to their non-OES counterpart if it exists.

1 files changed, 27 insertions, 3 deletions

diff --git a/opengl/libs/EGL/egl.cpp b/opengl/libs/EGL/egl.cpp
index 6fc0fed..ff005e2 100644
--- a/opengl/libs/EGL/egl.cpp
+++ b/opengl/libs/EGL/egl.cpp
@@ -273,6 +273,8 @@ int gpu_release(void*, request_gpu_t* gpu);
 static __attribute__((noinline))
 void *load_driver(const char* driver, gl_hooks_t* hooks)
 {
+    //LOGD("%s", driver);
+    char scrap[256];
     void* dso = dlopen(driver, RTLD_NOW | RTLD_LOCAL);
     LOGE_IF(!dso,
             "couldn't load <%s> library (%s)",
@@ -310,7 +312,7 @@ void *load_driver(const char* driver, gl_hooks_t* hooks)
             *curr++ = f;
             api++;
         }
-        
+
         gl_hooks_t::gl_t* gl = &hooks->gl;
         curr = (__eglMustCastToProperFunctionPointerType*)gl;
         api = gl_names;
@@ -321,10 +323,32 @@ void *load_driver(const char* driver, gl_hooks_t* hooks)
             if (f == NULL) {
                 // couldn't find the entry-point, use eglGetProcAddress()
                 f = getProcAddress(name);
-                if (f == NULL) {
-                    f = (__eglMustCastToProperFunctionPointerType)gl_unimplemented;
+            }
+            if (f == NULL) {
+                // Try without the OES postfix
+                ssize_t index = ssize_t(strlen(name)) - 3;
+                if ((index>0 && (index<255)) && (!strcmp(name+index, "OES"))) {
+                    strncpy(scrap, name, index);
+                    scrap[index] = 0;
+                    f = (__eglMustCastToProperFunctionPointerType)dlsym(dso, scrap);
+                    //LOGD_IF(f, "found <%s> instead", scrap);
                 }
             }
+            if (f == NULL) {
+                // Try with the OES postfix
+                ssize_t index = ssize_t(strlen(name)) - 3;
+                if ((index>0 && (index<252)) && (strcmp(name+index, "OES"))) {
+                    strncpy(scrap, name, index);
+                    scrap[index] = 0;
+                    strcat(scrap, "OES");
+                    f = (__eglMustCastToProperFunctionPointerType)dlsym(dso, scrap);
+                    //LOGD_IF(f, "found <%s> instead", scrap);
+                }
+            }
+            if (f == NULL) {
+                LOGD("%s", name);
+                f = (__eglMustCastToProperFunctionPointerType)gl_unimplemented;
+            }
             *curr++ = f;
             api++;
         }