added nanogl library
This commit is contained in:
lubomyr
219
project/jni/nanogl/src/nanogl.cpp
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219
project/jni/nanogl/src/nanogl.cpp
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/*
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Copyright (C) 2007-2009 Olli Hinkka
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#define LOG_TAG "nanoGL"
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#include <stdio.h>
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#include <stdlib.h>
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#include <dlfcn.h>
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//#include <cutils/log.h>
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#include "nanogl.h"
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#include "glesinterface.h"
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#include "gl.h"
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#define DEBUG_NANO 0
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#ifdef __ANDROID__
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#include <android/log.h>
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#define LOG __android_log_print
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#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
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#define LOGD(...) if (DEBUG_NANO) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)
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#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG,__VA_ARGS__)
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#define LOGW(...) __android_log_print(ANDROID_LOG_WARN, LOG_TAG,__VA_ARGS__)
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#else
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#define LOGI(...) printf("I: "__VA_ARGS__)
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#define LOGD(...) if(DEBUG_NANO) printf("D: "__VA_ARGS__)
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#define LOGE(...) printf("E: "__VA_ARGS__)
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#define LOGW(...) printf("W: "__VA_ARGS__)
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#endif
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#define GL_ENTRY(_r, _api, ...) #_api,
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static char const * const gl_names[] = {
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#include "gl_entries.in"
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NULL
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};
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//const char * driver;
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static void* glesLib = NULL;
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GlESInterface* glEsImpl = NULL;
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extern void InitGLStructs();
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static void gl_unimplemented() {
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LOGE ("Called unimplemented OpenGL ES API\n");
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}
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void *nanoGL_GetProcAddress(const char *name)
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{
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#if defined(__MULTITEXTURE_SUPPORT__)
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if (!strcmp(procname, "glMultiTexCoord2fARB"))
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{
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return (void*)&glMultiTexCoord2fARB;
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}
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else if (!strcmp(procname, "glActiveTextureARB"))
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{
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return (void*)&glActiveTexture;
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}
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else if (!strcmp(procname, "glClientActiveTextureARB"))
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{
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return (void*)&glClientActiveTexture;
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}
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#endif
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return dlsym(glesLib, name);
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}
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static int CreateGlEsInterface( const char * name, void * lib, void * lib1, void * default_func )
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{
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// alloc space
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if ( !glEsImpl )
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glEsImpl = (GlESInterface *) malloc(sizeof(GlESInterface));
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if (!glEsImpl) {
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return 0;
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}
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// load GL API calls
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char const * const * api;
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api = gl_names;
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// nanoGL interface pointer
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void ** ptr = (void **)(glEsImpl);
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while (*api)
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{
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void * f;
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f = dlsym(lib, *api); // try libGLESxx_CM.so
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if (f == NULL) {
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LOGW( "<%s> not found in %s. Trying libEGL.so.", *api, name); //driver);
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// try lib1
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if ( lib1 ) {
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f = dlsym(lib1, *api); // libEGL.so
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if ( f == NULL ) {
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LOGE ( "<%s> not found in libEGL.so", *api);
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f = default_func; //(void*)gl_unimplemented;
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}
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else {
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LOGD ("<%s> @ 0x%p\n", *api, f);
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}
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}
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else
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f = default_func;
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}
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else {
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LOGD ("<%s> @ 0x%p\n", *api, f);
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}
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*ptr++ = f;
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api++;
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}
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return 1;
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}
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// Load using the dynamic loader
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static int loadDriver(const char * name) {
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glesLib = dlopen(name, RTLD_NOW | RTLD_LOCAL);
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int rc = (glesLib) ? 1 : 0;
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return rc;
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}
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/**
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* Init
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*/
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int nanoGL_Init()
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{
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const char * lib1 = "libGLESv1_CM.so"; // Has both gl* & egl* funcs SDK < 1.5
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const char * lib2 = "libGLESv2.so"; // Only gl* funcs SDK >= 1.5
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const char * lib3 = "libEGL.so"; // Only egl* funcs SDK >= 1.5
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const char * driver;
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// load lib
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LOGI("nanoGL: Init loading driver %s\n", lib1);
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//LOG (ANDROID_LOG_DEBUG, LOG_TAG, "nanoGL: Init loading driver %s\n", lib1);
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if ( ! loadDriver(lib1) )
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{
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LOGE("Failed to load driver %s. Trying %s\n", lib1, lib2);
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if ( ! loadDriver(lib2) ) {
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LOGE ("Failed to load %s.\n", lib2);
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return 0;
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}
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else
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driver = lib2;
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}
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else
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driver = lib1;
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void * eglLib;
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//if ( strcmp(driver, lib2) == 0 ) {
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LOGD ("**** Will Load EGL subs from %s ****", lib3);
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eglLib = dlopen(lib3, RTLD_NOW | RTLD_LOCAL);
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if ( ! eglLib ) {
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LOGE ( "Failed to load %s", lib3);
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}
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//}
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// Load API gl* for 1.5+ else egl* gl*
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//if (CreateGlEsInterface(driver, glesLib, eglLib, NULL) == -1)
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if ( !CreateGlEsInterface(driver, glesLib, eglLib, (void *) gl_unimplemented) == -1)
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{
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// release lib
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LOGE ( "CreateGlEsInterface failed.");
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dlclose(glesLib);
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return 0;
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}
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// Init nanoGL
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InitGLStructs();
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return 1;
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}
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void nanoGL_Destroy()
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{
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LOGD ("nanoGL_Destroy");
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if (glEsImpl) {
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free( glEsImpl);
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glEsImpl = NULL;
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}
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// release lib
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dlclose(glesLib);
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}
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