void glsl_vertex :: openMess(t_symbol *filename)
{
if(NULL==filename || NULL==filename->s_name)return;
if(&s_==filename)return;
if( !GLEW_VERSION_1_1 ) { /* stupid check whether we have a valid context */
post("shader '%s' will be loaded when rendering is turned on (openGL context needed)", filename->s_name);
m_shaderFilename=filename;
return;
}
if(!isRunnable()) {
return;
}
// Clean up any open files
closeMess();
std::string fn = findFile(filename->s_name);
const char*buf=fn.c_str();
FILE *file = fopen(buf,"rb");
if(file) {
fseek(file,0,SEEK_END);
long size = ftell(file);
if(size<0){fclose(file);error("error reading filesize");return;}
m_shaderString = new char[size + 1];
memset(m_shaderString,0,size + 1);
fseek(file,0,SEEK_SET);
size_t count=fread(m_shaderString,1,size,file);
int err=ferror(file);
fclose(file);
if(err){error("error %d reading file (%d<%d)", err, count, size); return;}
} else {
error("could not find shader-file: '%s'", buf);
return;
/*
// assuming that the "filename" is actually a shader-program per se
m_shaderString = new char[strlen(buf) + 1];
strcpy(m_shaderString,buf);
*/
}
m_size=strlen(m_shaderString);
if(GLEW_VERSION_2_0)
openMessGL2();
else if (GLEW_ARB_vertex_shader)
openMessARB();
logpost(NULL, 5, "Loaded file: %s", buf);
m_shaderFilename=NULL;
}
void glsl_vertex :: loadShader()
{
if(NULL==m_shaderFilename || NULL==m_shaderFilename->s_name)return;
if(!isRunnable()) {
return;
}
// Clean up any open files
closeMess();
std::string fn = findFile(m_shaderFilename->s_name);
const char*buf=fn.c_str();
FILE *file = fopen(buf,"rb");
if(file) {
fseek(file,0,SEEK_END);
long size = ftell(file);
if(size<0){fclose(file);error("error reading filesize");return;}
m_shaderString = new char[size + 1];
memset(m_shaderString,0,size + 1);
fseek(file,0,SEEK_SET);
size_t count=fread(m_shaderString,1,size,file);
m_shaderString[size]='\0';
int err=ferror(file);
fclose(file);
if(err){error("error %d reading file (%d<%d)", err, count, size); return;}
} else {
error("could not find shader-file: '%s'", buf);
return;
/*
// assuming that the "filename" is actually a shader-program per se
m_shaderString = new char[strlen(buf) + 1];
strcpy(m_shaderString,buf);
*/
}
m_size=strlen(m_shaderString);
if(GLEW_VERSION_2_0)
openMessGL2();
else if (GLEW_ARB_vertex_shader)
openMessARB();
verbose(1, "Loaded file: %s", buf);
m_shaderFilename=NULL;
}
void glsl_geometry :: openMess(t_symbol *filename)
{
if(NULL==filename || NULL==filename->s_name)return;
if(&s_==filename)return;
if( !GLEW_VERSION_1_1 ) { /* stupid check whether we have a valid context */
post("shader '%s' will be loaded when rendering is turned on (openGL context needed)", filename->s_name);
m_shaderFilename=filename;
return;
}
if(!isRunnable()) {
return;
}
// Clean up any open files
closeMess();
std::string fn = findFile(filename->s_name);
const char*buf=fn.c_str();
FILE *file = fopen(buf,"rb");
if(file) {
fseek(file,0,SEEK_END);
long size = ftell(file);
if(size<0){fclose(file);error("error reading filesize");return;}
m_shaderString = new char[size + 1];
memset(m_shaderString,0,size + 1);
fseek(file,0,SEEK_SET);
size_t count=fread(m_shaderString,1,size,file);
m_shaderString[size]='\0';
int err=ferror(file);
fclose(file);
if(err){error("error %d reading file (%d<%d)", err, count, size); return;}
} else {
error("could not find shader-file: '%s'", buf);
return;
/*
// assuming that the "filename" is actually a shader-program per se
m_shaderString = new char[strlen(buf) + 1];
strcpy(m_shaderString,buf);
*/
}
m_size=strlen(m_shaderString);
if(GLEW_EXT_geometry_shader4) // GLEW_VERSION_2_1
openMessGL2();
else if (GLEW_ARB_geometry_shader4)
openMessARB();
verbose(1, "Loaded file: %s", buf);
m_shaderFilename=NULL;
if (m_shader || m_shaderARB)
{
t_atom a;
// send shaderID to outlet
gem::utils::glsl::atom_setshader(a, m_shader?m_shader:m_shaderARB);
outlet_list(m_outShaderID, gensym("list"), 1, &a);
}
}
