void GLSL_ShaderPair::showActiveAttribs ( FILE *fd )
{
if ( fd == NULL ) fd = stderr ;
GLint maxlen = 0 ;
GLint maxattrs = 0 ;
glGetObjectParameterivARB ( handle,
GL_OBJECT_ACTIVE_ATTRIBUTES_ARB,
&maxattrs ) ;
if ( maxattrs == 0 )
{
fprintf ( fd, "No Active Attributes.\n" ) ;
return ;
}
glGetObjectParameterivARB ( handle,
GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB,
&maxlen ) ;
char *name = new char [ maxlen+1 ] ;
fprintf ( fd, "Active Attributes:\n" ) ;
for ( int i = 0 ; i < maxattrs ; i++ )
{
GLsizei len ;
GLint size ;
GLenum vartype ;
char *vartypename ;
GLint location ;
glGetActiveAttribARB ( handle, i, maxlen+1, &len, &size, &vartype, name ) ;
location = glGetAttribLocationARB ( handle, name ) ;
switch ( vartype )
{
case GL_FLOAT : vartypename = "float" ; break ;
case GL_FLOAT_VEC2_ARB : vartypename = "vec2 " ; break ;
case GL_FLOAT_VEC3_ARB : vartypename = "vec3 " ; break ;
case GL_FLOAT_VEC4_ARB : vartypename = "vec4 " ; break ;
case GL_FLOAT_MAT2_ARB : vartypename = "mat2 " ; break ;
case GL_FLOAT_MAT3_ARB : vartypename = "mat3 " ; break ;
case GL_FLOAT_MAT4_ARB : vartypename = "mat4 " ; break ;
default : vartypename = "???? " ; break ;
}
if ( size == 1 )
fprintf ( fd, "%2d) %s %s ; // @%d\n", i,
vartypename, name, location ) ;
else
fprintf ( fd, "%2d) %s %s [ %d ] ; // @%d\n", i,
vartypename, name, size, location ) ;
}
fprintf ( fd, "\n" ) ;
delete name ;
}
void GPU::Shader::RecoverActiveAttributes()
{
m_Attributes.clear();
GLint count;
GLcharARB nameBuffer[512];
glGetObjectParameterivARB( m_Id, GL_OBJECT_ACTIVE_ATTRIBUTES_ARB, &count );
for( GLint i=0; i<count; ++i )
{
GLsizei length;
GLint size;
GLenum type;
glGetActiveAttribARB(
m_Id,
i,
sizeof(nameBuffer),
&length,
&size,
&type,
nameBuffer
);
GLint attribId = glGetAttribLocationARB( m_Id, nameBuffer );
if( attribId != -1 )
m_Attributes[ std::string(nameBuffer) ] = attribId;
}
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_ARBVertexShader_nglGetActiveAttribARB(JNIEnv *env, jclass clazz, jint programObj, jint index, jint maxLength, jobject length, jint length_position, jobject size, jint size_position, jobject type, jint type_position, jobject name, jint name_position, jlong function_pointer) {
GLsizei *length_address = ((GLsizei *)safeGetBufferAddress(env, length)) + length_position;
GLint *size_address = ((GLint *)(*env)->GetDirectBufferAddress(env, size)) + size_position;
GLenum *type_address = ((GLenum *)(*env)->GetDirectBufferAddress(env, type)) + type_position;
GLcharARB *name_address = ((GLcharARB *)(*env)->GetDirectBufferAddress(env, name)) + name_position;
glGetActiveAttribARBPROC glGetActiveAttribARB = (glGetActiveAttribARBPROC)((intptr_t)function_pointer);
glGetActiveAttribARB(programObj, index, maxLength, length_address, size_address, type_address, name_address);
}
