| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #include "OpenGLESDispatch/GLESv2Dispatch.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "emugl/common/shared_library.h" |
| |
| static emugl::SharedLibrary *s_gles2_lib = NULL; |
| |
| #define DEFAULT_GLES_V2_LIB EMUGL_LIBNAME("GLES_V2_translator") |
| |
| // An unimplemented function which prints out an error message. |
| // To make it consistent with the guest, all GLES2 functions not supported by |
| // the driver should be redirected to this function. |
| |
| static void gles2_unimplemented() { |
| fprintf(stderr, "Called unimplemented GLESv2 API\n"); |
| } |
| |
| // |
| // This function is called only once during initialiation before |
| // any thread has been created - hence it should NOT be thread safe. |
| // |
| bool gles2_dispatch_init(GLESv2Dispatch* dispatch_table) |
| { |
| const char *libName = getenv("ANDROID_GLESv2_LIB"); |
| if (!libName) { |
| libName = DEFAULT_GLES_V2_LIB; |
| } |
| |
| char error[256]; |
| s_gles2_lib = emugl::SharedLibrary::open(libName, error, sizeof(error)); |
| if (!s_gles2_lib) { |
| fprintf(stderr, "%s: Could not load %s [%s]\n", __FUNCTION__, |
| libName, error); |
| return false; |
| } |
| |
| // |
| // init the GLES dispatch table |
| // |
| #define LOOKUP_SYMBOL(return_type,function_name,signature,callargs) \ |
| dispatch_table-> function_name = reinterpret_cast< function_name ## _t >( \ |
| s_gles2_lib->findSymbol(#function_name)); |
| |
| LIST_GLES2_FUNCTIONS(LOOKUP_SYMBOL,LOOKUP_SYMBOL) |
| |
| return true; |
| } |
| |
| // |
| // This function is called only during initialization before |
| // any thread has been created - hence it should NOT be thread safe. |
| // |
| void *gles2_dispatch_get_proc_func(const char *name, void *userData) |
| { |
| void* func = NULL; |
| if (s_gles2_lib) { |
| func = (void *)s_gles2_lib->findSymbol(name); |
| } |
| // To make it consistent with the guest, redirect any unsupported functions |
| // to gles2_unimplemented. |
| if (!func) { |
| func = (void *)gles2_unimplemented; |
| } |
| return func; |
| } |