ResourcePool::~ResourcePool()
{
assert(program_refcount.empty());
for (list<GLuint>::const_iterator freelist_it = program_freelist.begin();
freelist_it != program_freelist.end();
++freelist_it) {
delete_program(*freelist_it);
}
assert(programs.empty());
assert(program_shaders.empty());
for (list<GLuint>::const_iterator freelist_it = texture_freelist.begin();
freelist_it != texture_freelist.end();
++freelist_it) {
GLuint free_texture_num = *freelist_it;
assert(texture_formats.count(free_texture_num) != 0);
texture_freelist_bytes -= estimate_texture_size(texture_formats[free_texture_num]);
texture_formats.erase(free_texture_num);
glDeleteTextures(1, &free_texture_num);
check_error();
}
assert(texture_formats.empty());
assert(texture_freelist_bytes == 0);
void *context = get_gl_context_identifier();
cleanup_unlinked_fbos(context);
for (map<void *, std::list<FBOFormatIterator> >::iterator context_it = fbo_freelist.begin();
context_it != fbo_freelist.end();
++context_it) {
if (context_it->first != context) {
// If this does not hold, the client should have called clean_context() earlier.
assert(context_it->second.empty());
continue;
}
for (list<FBOFormatIterator>::const_iterator freelist_it = context_it->second.begin();
freelist_it != context_it->second.end();
++freelist_it) {
FBOFormatIterator fbo_it = *freelist_it;
glDeleteFramebuffers(1, &fbo_it->second.fbo_num);
check_error();
fbo_formats.erase(fbo_it);
}
}
assert(fbo_formats.empty());
}
void ResourcePool::release_glsl_program(GLuint glsl_program_num)
{
pthread_mutex_lock(&lock);
map<GLuint, int>::iterator refcount_it = program_refcount.find(glsl_program_num);
assert(refcount_it != program_refcount.end());
if (--refcount_it->second == 0) {
program_refcount.erase(refcount_it);
assert(find(program_freelist.begin(), program_freelist.end(), glsl_program_num)
== program_freelist.end());
program_freelist.push_front(glsl_program_num);
if (program_freelist.size() > program_freelist_max_length) {
delete_program(program_freelist.back());
program_freelist.pop_back();
}
}
pthread_mutex_unlock(&lock);
}
void delete_font_renderer(FontRenderer* r) {
delete_program(&r->sp);
glDeleteBuffers(1, &r->vbo);
glDeleteVertexArrays(1, &r->vao);
}
