godot/servers/rendering/renderer_rd/shader_rd.cpp
reduz 746dddc067 Replace most uses of Map by HashMap
* Map is unnecessary and inefficient in almost every case.
* Replaced by the new HashMap.
* Renamed Map to RBMap and Set to RBSet for cases that still make sense
  (order matters) but use is discouraged.

There were very few cases where replacing by HashMap was undesired because
keeping the key order was intended.
I tried to keep those (as RBMap) as much as possible, but might have missed
some. Review appreciated!
2022-05-16 10:37:48 +02:00

707 lines
22 KiB
C++

/*************************************************************************/
/* shader_rd.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "shader_rd.h"
#include "core/io/compression.h"
#include "core/io/dir_access.h"
#include "core/io/file_access.h"
#include "renderer_compositor_rd.h"
#include "servers/rendering/rendering_device.h"
#include "thirdparty/misc/smolv.h"
void ShaderRD::_add_stage(const char *p_code, StageType p_stage_type) {
Vector<String> lines = String(p_code).split("\n");
String text;
for (int i = 0; i < lines.size(); i++) {
String l = lines[i];
bool push_chunk = false;
StageTemplate::Chunk chunk;
if (l.begins_with("#VERSION_DEFINES")) {
chunk.type = StageTemplate::Chunk::TYPE_VERSION_DEFINES;
push_chunk = true;
} else if (l.begins_with("#GLOBALS")) {
switch (p_stage_type) {
case STAGE_TYPE_VERTEX:
chunk.type = StageTemplate::Chunk::TYPE_VERTEX_GLOBALS;
break;
case STAGE_TYPE_FRAGMENT:
chunk.type = StageTemplate::Chunk::TYPE_FRAGMENT_GLOBALS;
break;
case STAGE_TYPE_COMPUTE:
chunk.type = StageTemplate::Chunk::TYPE_COMPUTE_GLOBALS;
break;
default: {
}
}
push_chunk = true;
} else if (l.begins_with("#MATERIAL_UNIFORMS")) {
chunk.type = StageTemplate::Chunk::TYPE_MATERIAL_UNIFORMS;
push_chunk = true;
} else if (l.begins_with("#CODE")) {
chunk.type = StageTemplate::Chunk::TYPE_CODE;
push_chunk = true;
chunk.code = l.replace_first("#CODE", String()).replace(":", "").strip_edges().to_upper();
} else {
text += l + "\n";
}
if (push_chunk) {
if (!text.is_empty()) {
StageTemplate::Chunk text_chunk;
text_chunk.type = StageTemplate::Chunk::TYPE_TEXT;
text_chunk.text = text.utf8();
stage_templates[p_stage_type].chunks.push_back(text_chunk);
text = String();
}
stage_templates[p_stage_type].chunks.push_back(chunk);
}
}
if (!text.is_empty()) {
StageTemplate::Chunk text_chunk;
text_chunk.type = StageTemplate::Chunk::TYPE_TEXT;
text_chunk.text = text.utf8();
stage_templates[p_stage_type].chunks.push_back(text_chunk);
text = String();
}
}
void ShaderRD::setup(const char *p_vertex_code, const char *p_fragment_code, const char *p_compute_code, const char *p_name) {
name = p_name;
if (p_compute_code) {
_add_stage(p_compute_code, STAGE_TYPE_COMPUTE);
is_compute = true;
} else {
is_compute = false;
if (p_vertex_code) {
_add_stage(p_vertex_code, STAGE_TYPE_VERTEX);
}
if (p_fragment_code) {
_add_stage(p_fragment_code, STAGE_TYPE_FRAGMENT);
}
}
StringBuilder tohash;
tohash.append("[SpirvCacheKey]");
tohash.append(RenderingDevice::get_singleton()->shader_get_spirv_cache_key());
tohash.append("[BinaryCacheKey]");
tohash.append(RenderingDevice::get_singleton()->shader_get_binary_cache_key());
tohash.append("[Vertex]");
tohash.append(p_vertex_code ? p_vertex_code : "");
tohash.append("[Fragment]");
tohash.append(p_fragment_code ? p_fragment_code : "");
tohash.append("[Compute]");
tohash.append(p_compute_code ? p_compute_code : "");
base_sha256 = tohash.as_string().sha256_text();
}
RID ShaderRD::version_create() {
//initialize() was never called
ERR_FAIL_COND_V(variant_defines.size() == 0, RID());
Version version;
version.dirty = true;
version.valid = false;
version.initialize_needed = true;
version.variants = nullptr;
return version_owner.make_rid(version);
}
void ShaderRD::_clear_version(Version *p_version) {
//clear versions if they exist
if (p_version->variants) {
for (int i = 0; i < variant_defines.size(); i++) {
if (variants_enabled[i]) {
RD::get_singleton()->free(p_version->variants[i]);
}
}
memdelete_arr(p_version->variants);
if (p_version->variant_data) {
memdelete_arr(p_version->variant_data);
}
p_version->variants = nullptr;
}
}
void ShaderRD::_build_variant_code(StringBuilder &builder, uint32_t p_variant, const Version *p_version, const StageTemplate &p_template) {
for (uint32_t i = 0; i < p_template.chunks.size(); i++) {
const StageTemplate::Chunk &chunk = p_template.chunks[i];
switch (chunk.type) {
case StageTemplate::Chunk::TYPE_VERSION_DEFINES: {
builder.append("\n"); //make sure defines begin at newline
builder.append(general_defines.get_data());
builder.append(variant_defines[p_variant].get_data());
for (int j = 0; j < p_version->custom_defines.size(); j++) {
builder.append(p_version->custom_defines[j].get_data());
}
builder.append("\n"); //make sure defines begin at newline
if (p_version->uniforms.size()) {
builder.append("#define MATERIAL_UNIFORMS_USED\n");
}
for (const KeyValue<StringName, CharString> &E : p_version->code_sections) {
builder.append(String("#define ") + String(E.key) + "_CODE_USED\n");
}
#if defined(OSX_ENABLED) || defined(IPHONE_ENABLED)
builder.append("#define MOLTENVK_USED\n");
#endif
} break;
case StageTemplate::Chunk::TYPE_MATERIAL_UNIFORMS: {
builder.append(p_version->uniforms.get_data()); //uniforms (same for vertex and fragment)
} break;
case StageTemplate::Chunk::TYPE_VERTEX_GLOBALS: {
builder.append(p_version->vertex_globals.get_data()); // vertex globals
} break;
case StageTemplate::Chunk::TYPE_FRAGMENT_GLOBALS: {
builder.append(p_version->fragment_globals.get_data()); // fragment globals
} break;
case StageTemplate::Chunk::TYPE_COMPUTE_GLOBALS: {
builder.append(p_version->compute_globals.get_data()); // compute globals
} break;
case StageTemplate::Chunk::TYPE_CODE: {
if (p_version->code_sections.has(chunk.code)) {
builder.append(p_version->code_sections[chunk.code].get_data());
}
} break;
case StageTemplate::Chunk::TYPE_TEXT: {
builder.append(chunk.text.get_data());
} break;
}
}
}
void ShaderRD::_compile_variant(uint32_t p_variant, Version *p_version) {
if (!variants_enabled[p_variant]) {
return; //variant is disabled, return
}
Vector<RD::ShaderStageSPIRVData> stages;
String error;
String current_source;
RD::ShaderStage current_stage = RD::SHADER_STAGE_VERTEX;
bool build_ok = true;
if (!is_compute) {
//vertex stage
StringBuilder builder;
_build_variant_code(builder, p_variant, p_version, stage_templates[STAGE_TYPE_VERTEX]);
current_source = builder.as_string();
RD::ShaderStageSPIRVData stage;
stage.spir_v = RD::get_singleton()->shader_compile_spirv_from_source(RD::SHADER_STAGE_VERTEX, current_source, RD::SHADER_LANGUAGE_GLSL, &error);
if (stage.spir_v.size() == 0) {
build_ok = false;
} else {
stage.shader_stage = RD::SHADER_STAGE_VERTEX;
stages.push_back(stage);
}
}
if (!is_compute && build_ok) {
//fragment stage
current_stage = RD::SHADER_STAGE_FRAGMENT;
StringBuilder builder;
_build_variant_code(builder, p_variant, p_version, stage_templates[STAGE_TYPE_FRAGMENT]);
current_source = builder.as_string();
RD::ShaderStageSPIRVData stage;
stage.spir_v = RD::get_singleton()->shader_compile_spirv_from_source(RD::SHADER_STAGE_FRAGMENT, current_source, RD::SHADER_LANGUAGE_GLSL, &error);
if (stage.spir_v.size() == 0) {
build_ok = false;
} else {
stage.shader_stage = RD::SHADER_STAGE_FRAGMENT;
stages.push_back(stage);
}
}
if (is_compute) {
//compute stage
current_stage = RD::SHADER_STAGE_COMPUTE;
StringBuilder builder;
_build_variant_code(builder, p_variant, p_version, stage_templates[STAGE_TYPE_COMPUTE]);
current_source = builder.as_string();
RD::ShaderStageSPIRVData stage;
stage.spir_v = RD::get_singleton()->shader_compile_spirv_from_source(RD::SHADER_STAGE_COMPUTE, current_source, RD::SHADER_LANGUAGE_GLSL, &error);
if (stage.spir_v.size() == 0) {
build_ok = false;
} else {
stage.shader_stage = RD::SHADER_STAGE_COMPUTE;
stages.push_back(stage);
}
}
if (!build_ok) {
MutexLock lock(variant_set_mutex); //properly print the errors
ERR_PRINT("Error compiling " + String(current_stage == RD::SHADER_STAGE_COMPUTE ? "Compute " : (current_stage == RD::SHADER_STAGE_VERTEX ? "Vertex" : "Fragment")) + " shader, variant #" + itos(p_variant) + " (" + variant_defines[p_variant].get_data() + ").");
ERR_PRINT(error);
#ifdef DEBUG_ENABLED
ERR_PRINT("code:\n" + current_source.get_with_code_lines());
#endif
return;
}
Vector<uint8_t> shader_data = RD::get_singleton()->shader_compile_binary_from_spirv(stages, name + ":" + itos(p_variant));
ERR_FAIL_COND(shader_data.size() == 0);
RID shader = RD::get_singleton()->shader_create_from_bytecode(shader_data);
{
MutexLock lock(variant_set_mutex);
p_version->variants[p_variant] = shader;
p_version->variant_data[p_variant] = shader_data;
}
}
RS::ShaderNativeSourceCode ShaderRD::version_get_native_source_code(RID p_version) {
Version *version = version_owner.get_or_null(p_version);
RS::ShaderNativeSourceCode source_code;
ERR_FAIL_COND_V(!version, source_code);
source_code.versions.resize(variant_defines.size());
for (int i = 0; i < source_code.versions.size(); i++) {
if (!is_compute) {
//vertex stage
StringBuilder builder;
_build_variant_code(builder, i, version, stage_templates[STAGE_TYPE_VERTEX]);
RS::ShaderNativeSourceCode::Version::Stage stage;
stage.name = "vertex";
stage.code = builder.as_string();
source_code.versions.write[i].stages.push_back(stage);
}
if (!is_compute) {
//fragment stage
StringBuilder builder;
_build_variant_code(builder, i, version, stage_templates[STAGE_TYPE_FRAGMENT]);
RS::ShaderNativeSourceCode::Version::Stage stage;
stage.name = "fragment";
stage.code = builder.as_string();
source_code.versions.write[i].stages.push_back(stage);
}
if (is_compute) {
//compute stage
StringBuilder builder;
_build_variant_code(builder, i, version, stage_templates[STAGE_TYPE_COMPUTE]);
RS::ShaderNativeSourceCode::Version::Stage stage;
stage.name = "compute";
stage.code = builder.as_string();
source_code.versions.write[i].stages.push_back(stage);
}
}
return source_code;
}
String ShaderRD::_version_get_sha1(Version *p_version) const {
StringBuilder hash_build;
hash_build.append("[uniforms]");
hash_build.append(p_version->uniforms.get_data());
hash_build.append("[vertex_globals]");
hash_build.append(p_version->vertex_globals.get_data());
hash_build.append("[fragment_globals]");
hash_build.append(p_version->fragment_globals.get_data());
hash_build.append("[compute_globals]");
hash_build.append(p_version->compute_globals.get_data());
Vector<StringName> code_sections;
for (const KeyValue<StringName, CharString> &E : p_version->code_sections) {
code_sections.push_back(E.key);
}
code_sections.sort_custom<StringName::AlphCompare>();
for (int i = 0; i < code_sections.size(); i++) {
hash_build.append(String("[code:") + String(code_sections[i]) + "]");
hash_build.append(p_version->code_sections[code_sections[i]].get_data());
}
for (int i = 0; i < p_version->custom_defines.size(); i++) {
hash_build.append("[custom_defines:" + itos(i) + "]");
hash_build.append(p_version->custom_defines[i].get_data());
}
return hash_build.as_string().sha1_text();
}
static const char *shader_file_header = "GDSC";
static const uint32_t cache_file_version = 2;
bool ShaderRD::_load_from_cache(Version *p_version) {
String sha1 = _version_get_sha1(p_version);
String path = shader_cache_dir.plus_file(name).plus_file(base_sha256).plus_file(sha1) + ".cache";
Ref<FileAccess> f = FileAccess::open(path, FileAccess::READ);
if (f.is_null()) {
return false;
}
char header[5] = { 0, 0, 0, 0, 0 };
f->get_buffer((uint8_t *)header, 4);
ERR_FAIL_COND_V(header != String(shader_file_header), false);
uint32_t file_version = f->get_32();
if (file_version != cache_file_version) {
return false; // wrong version
}
uint32_t variant_count = f->get_32();
ERR_FAIL_COND_V(variant_count != (uint32_t)variant_defines.size(), false); //should not happen but check
for (uint32_t i = 0; i < variant_count; i++) {
uint32_t variant_size = f->get_32();
ERR_FAIL_COND_V(variant_size == 0 && variants_enabled[i], false);
if (!variants_enabled[i]) {
continue;
}
Vector<uint8_t> variant_bytes;
variant_bytes.resize(variant_size);
uint32_t br = f->get_buffer(variant_bytes.ptrw(), variant_size);
ERR_FAIL_COND_V(br != variant_size, false);
p_version->variant_data[i] = variant_bytes;
}
for (uint32_t i = 0; i < variant_count; i++) {
if (!variants_enabled[i]) {
MutexLock lock(variant_set_mutex);
p_version->variants[i] = RID();
continue;
}
RID shader = RD::get_singleton()->shader_create_from_bytecode(p_version->variant_data[i]);
if (shader.is_null()) {
for (uint32_t j = 0; j < i; j++) {
RD::get_singleton()->free(p_version->variants[i]);
}
ERR_FAIL_COND_V(shader.is_null(), false);
}
{
MutexLock lock(variant_set_mutex);
p_version->variants[i] = shader;
}
}
memdelete_arr(p_version->variant_data); //clear stages
p_version->variant_data = nullptr;
p_version->valid = true;
return true;
}
void ShaderRD::_save_to_cache(Version *p_version) {
String sha1 = _version_get_sha1(p_version);
String path = shader_cache_dir.plus_file(name).plus_file(base_sha256).plus_file(sha1) + ".cache";
Ref<FileAccess> f = FileAccess::open(path, FileAccess::WRITE);
ERR_FAIL_COND(f.is_null());
f->store_buffer((const uint8_t *)shader_file_header, 4);
f->store_32(cache_file_version); //file version
uint32_t variant_count = variant_defines.size();
f->store_32(variant_count); //variant count
for (uint32_t i = 0; i < variant_count; i++) {
f->store_32(p_version->variant_data[i].size()); //stage count
f->store_buffer(p_version->variant_data[i].ptr(), p_version->variant_data[i].size());
}
}
void ShaderRD::_compile_version(Version *p_version) {
_clear_version(p_version);
p_version->valid = false;
p_version->dirty = false;
p_version->variants = memnew_arr(RID, variant_defines.size());
typedef Vector<uint8_t> ShaderStageData;
p_version->variant_data = memnew_arr(ShaderStageData, variant_defines.size());
if (shader_cache_dir_valid) {
if (_load_from_cache(p_version)) {
return;
}
}
#if 1
RendererThreadPool::singleton->thread_work_pool.do_work(variant_defines.size(), this, &ShaderRD::_compile_variant, p_version);
#else
for (int i = 0; i < variant_defines.size(); i++) {
_compile_variant(i, p_version);
}
#endif
bool all_valid = true;
for (int i = 0; i < variant_defines.size(); i++) {
if (!variants_enabled[i]) {
continue; //disabled
}
if (p_version->variants[i].is_null()) {
all_valid = false;
break;
}
}
if (!all_valid) {
//clear versions if they exist
for (int i = 0; i < variant_defines.size(); i++) {
if (!variants_enabled[i]) {
continue; //disabled
}
if (!p_version->variants[i].is_null()) {
RD::get_singleton()->free(p_version->variants[i]);
}
}
memdelete_arr(p_version->variants);
if (p_version->variant_data) {
memdelete_arr(p_version->variant_data);
}
p_version->variants = nullptr;
p_version->variant_data = nullptr;
return;
} else if (shader_cache_dir_valid) {
//save shader cache
_save_to_cache(p_version);
}
memdelete_arr(p_version->variant_data); //clear stages
p_version->variant_data = nullptr;
p_version->valid = true;
}
void ShaderRD::version_set_code(RID p_version, const HashMap<String, String> &p_code, const String &p_uniforms, const String &p_vertex_globals, const String &p_fragment_globals, const Vector<String> &p_custom_defines) {
ERR_FAIL_COND(is_compute);
Version *version = version_owner.get_or_null(p_version);
ERR_FAIL_COND(!version);
version->vertex_globals = p_vertex_globals.utf8();
version->fragment_globals = p_fragment_globals.utf8();
version->uniforms = p_uniforms.utf8();
version->code_sections.clear();
for (const KeyValue<String, String> &E : p_code) {
version->code_sections[StringName(E.key.to_upper())] = E.value.utf8();
}
version->custom_defines.clear();
for (int i = 0; i < p_custom_defines.size(); i++) {
version->custom_defines.push_back(p_custom_defines[i].utf8());
}
version->dirty = true;
if (version->initialize_needed) {
_compile_version(version);
version->initialize_needed = false;
}
}
void ShaderRD::version_set_compute_code(RID p_version, const HashMap<String, String> &p_code, const String &p_uniforms, const String &p_compute_globals, const Vector<String> &p_custom_defines) {
ERR_FAIL_COND(!is_compute);
Version *version = version_owner.get_or_null(p_version);
ERR_FAIL_COND(!version);
version->compute_globals = p_compute_globals.utf8();
version->uniforms = p_uniforms.utf8();
version->code_sections.clear();
for (const KeyValue<String, String> &E : p_code) {
version->code_sections[StringName(E.key.to_upper())] = E.value.utf8();
}
version->custom_defines.clear();
for (int i = 0; i < p_custom_defines.size(); i++) {
version->custom_defines.push_back(p_custom_defines[i].utf8());
}
version->dirty = true;
if (version->initialize_needed) {
_compile_version(version);
version->initialize_needed = false;
}
}
bool ShaderRD::version_is_valid(RID p_version) {
Version *version = version_owner.get_or_null(p_version);
ERR_FAIL_COND_V(!version, false);
if (version->dirty) {
_compile_version(version);
}
return version->valid;
}
bool ShaderRD::version_free(RID p_version) {
if (version_owner.owns(p_version)) {
Version *version = version_owner.get_or_null(p_version);
_clear_version(version);
version_owner.free(p_version);
} else {
return false;
}
return true;
}
void ShaderRD::set_variant_enabled(int p_variant, bool p_enabled) {
ERR_FAIL_COND(version_owner.get_rid_count() > 0); //versions exist
ERR_FAIL_INDEX(p_variant, variants_enabled.size());
variants_enabled.write[p_variant] = p_enabled;
}
bool ShaderRD::is_variant_enabled(int p_variant) const {
ERR_FAIL_INDEX_V(p_variant, variants_enabled.size(), false);
return variants_enabled[p_variant];
}
bool ShaderRD::shader_cache_cleanup_on_start = false;
ShaderRD::ShaderRD() {
// Do not feel forced to use this, in most cases it makes little to no difference.
bool use_32_threads = false;
if (RD::get_singleton()->get_device_vendor_name() == "NVIDIA") {
use_32_threads = true;
}
String base_compute_define_text;
if (use_32_threads) {
base_compute_define_text = "\n#define NATIVE_LOCAL_GROUP_SIZE 32\n#define NATIVE_LOCAL_SIZE_2D_X 8\n#define NATIVE_LOCAL_SIZE_2D_Y 4\n";
} else {
base_compute_define_text = "\n#define NATIVE_LOCAL_GROUP_SIZE 64\n#define NATIVE_LOCAL_SIZE_2D_X 8\n#define NATIVE_LOCAL_SIZE_2D_Y 8\n";
}
base_compute_defines = base_compute_define_text.ascii();
}
void ShaderRD::initialize(const Vector<String> &p_variant_defines, const String &p_general_defines) {
ERR_FAIL_COND(variant_defines.size());
ERR_FAIL_COND(p_variant_defines.size() == 0);
general_defines = p_general_defines.utf8();
for (int i = 0; i < p_variant_defines.size(); i++) {
variant_defines.push_back(p_variant_defines[i].utf8());
variants_enabled.push_back(true);
}
if (!shader_cache_dir.is_empty()) {
StringBuilder hash_build;
hash_build.append("[base_hash]");
hash_build.append(base_sha256);
hash_build.append("[general_defines]");
hash_build.append(general_defines.get_data());
for (int i = 0; i < variant_defines.size(); i++) {
hash_build.append("[variant_defines:" + itos(i) + "]");
hash_build.append(variant_defines[i].get_data());
}
base_sha256 = hash_build.as_string().sha256_text();
Ref<DirAccess> d = DirAccess::open(shader_cache_dir);
ERR_FAIL_COND(d.is_null());
if (d->change_dir(name) != OK) {
Error err = d->make_dir(name);
ERR_FAIL_COND(err != OK);
d->change_dir(name);
}
//erase other versions?
if (shader_cache_cleanup_on_start) {
}
//
if (d->change_dir(base_sha256) != OK) {
Error err = d->make_dir(base_sha256);
ERR_FAIL_COND(err != OK);
}
shader_cache_dir_valid = true;
print_verbose("Shader '" + name + "' SHA256: " + base_sha256);
}
}
void ShaderRD::set_shader_cache_dir(const String &p_dir) {
shader_cache_dir = p_dir;
}
void ShaderRD::set_shader_cache_save_compressed(bool p_enable) {
shader_cache_save_compressed = p_enable;
}
void ShaderRD::set_shader_cache_save_compressed_zstd(bool p_enable) {
shader_cache_save_compressed_zstd = p_enable;
}
void ShaderRD::set_shader_cache_save_debug(bool p_enable) {
shader_cache_save_debug = p_enable;
}
String ShaderRD::shader_cache_dir;
bool ShaderRD::shader_cache_save_compressed = true;
bool ShaderRD::shader_cache_save_compressed_zstd = true;
bool ShaderRD::shader_cache_save_debug = true;
ShaderRD::~ShaderRD() {
List<RID> remaining;
version_owner.get_owned_list(&remaining);
if (remaining.size()) {
ERR_PRINT(itos(remaining.size()) + " shaders of type " + name + " were never freed");
while (remaining.size()) {
version_free(remaining.front()->get());
remaining.pop_front();
}
}
}