virtualx-engine/servers/rendering/renderer_rd/shader_rd.cpp

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/**************************************************************************/
/* shader_rd.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "core/object/worker_thread_pool.h"
#include "core/version.h"
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#include "renderer_compositor_rd.h"
#include "servers/rendering/rendering_device.h"
#include "thirdparty/misc/smolv.h"
#define ENABLE_SHADER_CACHE 1
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++) {
const 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);
}
}
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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;
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if (p_compute_code) {
_add_stage(p_compute_code, STAGE_TYPE_COMPUTE);
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is_compute = true;
} else {
is_compute = false;
if (p_vertex_code) {
_add_stage(p_vertex_code, STAGE_TYPE_VERTEX);
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}
if (p_fragment_code) {
_add_stage(p_fragment_code, STAGE_TYPE_FRAGMENT);
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}
}
StringBuilder tohash;
tohash.append("[GodotVersionNumber]");
tohash.append(VERSION_NUMBER);
tohash.append("[GodotVersionHash]");
tohash.append(VERSION_HASH);
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(group_to_variant_map.is_empty(), RID());
Version version;
version.dirty = true;
version.valid = false;
version.initialize_needed = true;
version.variants.clear();
version.variant_data.clear();
return version_owner.make_rid(version);
}
void ShaderRD::_initialize_version(Version *p_version) {
_clear_version(p_version);
p_version->valid = false;
p_version->dirty = false;
p_version->variants.resize_zeroed(variant_defines.size());
p_version->variant_data.resize(variant_defines.size());
p_version->group_compilation_tasks.resize(group_enabled.size());
p_version->group_compilation_tasks.fill(0);
}
void ShaderRD::_clear_version(Version *p_version) {
_compile_ensure_finished(p_version);
// Clear versions if they exist.
if (!p_version->variants.is_empty()) {
for (int i = 0; i < variant_defines.size(); i++) {
if (p_version->variants[i].is_valid()) {
RD::get_singleton()->free(p_version->variants[i]);
}
}
p_version->variants.clear();
p_version->variant_data.clear();
}
}
void ShaderRD::_build_variant_code(StringBuilder &builder, uint32_t p_variant, const Version *p_version, const StageTemplate &p_template) {
for (const StageTemplate::Chunk &chunk : p_template.chunks) {
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].text.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");
}
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for (const KeyValue<StringName, CharString> &E : p_version->code_sections) {
builder.append(String("#define ") + String(E.key) + "_CODE_USED\n");
}
#if (defined(MACOS_ENABLED) || defined(IOS_ENABLED))
if (RD::get_singleton()->get_device_capabilities().device_family == RDD::DEVICE_VULKAN) {
builder.append("#define MOLTENVK_USED\n");
}
// Image atomics are supported on Metal 3.1 but no support in MoltenVK or SPIRV-Cross yet.
builder.append("#define NO_IMAGE_ATOMICS\n");
#endif
builder.append(String("#define RENDER_DRIVER_") + OS::get_singleton()->get_current_rendering_driver_name().to_upper() + "\n");
builder.append("#define samplerExternalOES sampler2D\n");
builder.append("#define textureExternalOES texture2D\n");
} 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, CompileData p_data) {
uint32_t variant = group_to_variant_map[p_data.group][p_variant];
if (!variants_enabled[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;
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if (!is_compute) {
//vertex stage
StringBuilder builder;
_build_variant_code(builder, variant, p_data.version, stage_templates[STAGE_TYPE_VERTEX]);
current_source = builder.as_string();
RD::ShaderStageSPIRVData stage;
stage.spirv = RD::get_singleton()->shader_compile_spirv_from_source(RD::SHADER_STAGE_VERTEX, current_source, RD::SHADER_LANGUAGE_GLSL, &error);
if (stage.spirv.size() == 0) {
build_ok = false;
} else {
stage.shader_stage = RD::SHADER_STAGE_VERTEX;
stages.push_back(stage);
}
}
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if (!is_compute && build_ok) {
//fragment stage
current_stage = RD::SHADER_STAGE_FRAGMENT;
StringBuilder builder;
_build_variant_code(builder, variant, p_data.version, stage_templates[STAGE_TYPE_FRAGMENT]);
current_source = builder.as_string();
RD::ShaderStageSPIRVData stage;
stage.spirv = RD::get_singleton()->shader_compile_spirv_from_source(RD::SHADER_STAGE_FRAGMENT, current_source, RD::SHADER_LANGUAGE_GLSL, &error);
if (stage.spirv.size() == 0) {
build_ok = false;
} else {
stage.shader_stage = RD::SHADER_STAGE_FRAGMENT;
stages.push_back(stage);
}
}
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if (is_compute) {
//compute stage
current_stage = RD::SHADER_STAGE_COMPUTE;
StringBuilder builder;
_build_variant_code(builder, variant, p_data.version, stage_templates[STAGE_TYPE_COMPUTE]);
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current_source = builder.as_string();
RD::ShaderStageSPIRVData stage;
stage.spirv = RD::get_singleton()->shader_compile_spirv_from_source(RD::SHADER_STAGE_COMPUTE, current_source, RD::SHADER_LANGUAGE_GLSL, &error);
if (stage.spirv.size() == 0) {
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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(variant) + " (" + variant_defines[variant].text.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(variant));
ERR_FAIL_COND(shader_data.is_empty());
{
MutexLock lock(variant_set_mutex);
p_data.version->variants.write[variant] = RD::get_singleton()->shader_create_from_bytecode(shader_data, p_data.version->variants[variant]);
p_data.version->variant_data.write[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_NULL_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;
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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 = 3;
String ShaderRD::_get_cache_file_path(Version *p_version, int p_group) {
const String &sha1 = _version_get_sha1(p_version);
const String &api_safe_name = String(RD::get_singleton()->get_device_api_name()).validate_filename().to_lower();
const String &path = shader_cache_dir.path_join(name).path_join(group_sha256[p_group]).path_join(sha1) + "." + api_safe_name + ".cache";
return path;
}
bool ShaderRD::_load_from_cache(Version *p_version, int p_group) {
const String &path = _get_cache_file_path(p_version, p_group);
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)group_to_variant_map[p_group].size(), false); //should not happen but check
for (uint32_t i = 0; i < variant_count; i++) {
int variant_id = group_to_variant_map[p_group][i];
uint32_t variant_size = f->get_32();
ERR_FAIL_COND_V(variant_size == 0 && variants_enabled[variant_id], false);
if (!variants_enabled[variant_id]) {
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.write[variant_id] = variant_bytes;
}
for (uint32_t i = 0; i < variant_count; i++) {
int variant_id = group_to_variant_map[p_group][i];
if (!variants_enabled[variant_id]) {
MutexLock lock(variant_set_mutex);
p_version->variants.write[variant_id] = RID();
continue;
}
{
MutexLock lock(variant_set_mutex);
RID shader = RD::get_singleton()->shader_create_from_bytecode(p_version->variant_data[variant_id], p_version->variants[variant_id]);
if (shader.is_null()) {
for (uint32_t j = 0; j < i; j++) {
int variant_free_id = group_to_variant_map[p_group][j];
RD::get_singleton()->free(p_version->variants[variant_free_id]);
}
ERR_FAIL_COND_V(shader.is_null(), false);
}
p_version->variants.write[variant_id] = shader;
}
}
p_version->valid = true;
return true;
}
void ShaderRD::_save_to_cache(Version *p_version, int p_group) {
ERR_FAIL_COND(!shader_cache_dir_valid);
const String &path = _get_cache_file_path(p_version, p_group);
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 = group_to_variant_map[p_group].size();
f->store_32(variant_count); // Variant count.
for (uint32_t i = 0; i < variant_count; i++) {
int variant_id = group_to_variant_map[p_group][i];
f->store_32(p_version->variant_data[variant_id].size()); // Stage count.
f->store_buffer(p_version->variant_data[variant_id].ptr(), p_version->variant_data[variant_id].size());
}
}
void ShaderRD::_allocate_placeholders(Version *p_version, int p_group) {
ERR_FAIL_COND(p_version->variants.is_empty());
for (uint32_t i = 0; i < group_to_variant_map[p_group].size(); i++) {
int variant_id = group_to_variant_map[p_group][i];
RID shader = RD::get_singleton()->shader_create_placeholder();
{
MutexLock lock(variant_set_mutex);
p_version->variants.write[variant_id] = shader;
}
}
}
// Try to compile all variants for a given group.
// Will skip variants that are disabled.
void ShaderRD::_compile_version_start(Version *p_version, int p_group) {
if (!group_enabled[p_group]) {
return;
}
p_version->dirty = false;
#if ENABLE_SHADER_CACHE
if (shader_cache_dir_valid) {
if (_load_from_cache(p_version, p_group)) {
return;
}
}
#endif
CompileData compile_data;
compile_data.version = p_version;
compile_data.group = p_group;
WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &ShaderRD::_compile_variant, compile_data, group_to_variant_map[p_group].size(), -1, true, SNAME("ShaderCompilation"));
p_version->group_compilation_tasks.write[p_group] = group_task;
}
void ShaderRD::_compile_version_end(Version *p_version, int p_group) {
if (p_version->group_compilation_tasks.size() <= p_group || p_version->group_compilation_tasks[p_group] == 0) {
return;
}
WorkerThreadPool::GroupID group_task = p_version->group_compilation_tasks[p_group];
WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
p_version->group_compilation_tasks.write[p_group] = 0;
bool all_valid = true;
for (uint32_t i = 0; i < group_to_variant_map[p_group].size(); i++) {
int variant_id = group_to_variant_map[p_group][i];
if (!variants_enabled[variant_id]) {
continue; // Disabled.
}
if (p_version->variants[variant_id].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] || !group_enabled[variant_defines[i].group]) {
continue; // Disabled.
}
if (!p_version->variants[i].is_null()) {
RD::get_singleton()->free(p_version->variants[i]);
}
}
p_version->variants.clear();
p_version->variant_data.clear();
return;
}
#if ENABLE_SHADER_CACHE
else if (shader_cache_dir_valid) {
_save_to_cache(p_version, p_group);
}
#endif
p_version->valid = true;
}
void ShaderRD::_compile_ensure_finished(Version *p_version) {
// Wait for compilation of existing groups if necessary.
for (int i = 0; i < group_enabled.size(); i++) {
_compile_version_end(p_version, i);
}
}
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) {
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ERR_FAIL_COND(is_compute);
Version *version = version_owner.get_or_null(p_version);
ERR_FAIL_NULL(version);
_compile_ensure_finished(version);
version->vertex_globals = p_vertex_globals.utf8();
version->fragment_globals = p_fragment_globals.utf8();
version->uniforms = p_uniforms.utf8();
version->code_sections.clear();
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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) {
_initialize_version(version);
for (int i = 0; i < group_enabled.size(); i++) {
if (!group_enabled[i]) {
_allocate_placeholders(version, i);
continue;
}
_compile_version_start(version, i);
}
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) {
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ERR_FAIL_COND(!is_compute);
Version *version = version_owner.get_or_null(p_version);
ERR_FAIL_NULL(version);
_compile_ensure_finished(version);
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version->compute_globals = p_compute_globals.utf8();
version->uniforms = p_uniforms.utf8();
version->code_sections.clear();
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for (const KeyValue<String, String> &E : p_code) {
version->code_sections[StringName(E.key.to_upper())] = E.value.utf8();
}
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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) {
_initialize_version(version);
for (int i = 0; i < group_enabled.size(); i++) {
if (!group_enabled[i]) {
_allocate_placeholders(version, i);
continue;
}
_compile_version_start(version, i);
}
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version->initialize_needed = false;
}
}
bool ShaderRD::version_is_valid(RID p_version) {
Version *version = version_owner.get_or_null(p_version);
ERR_FAIL_NULL_V(version, false);
if (version->dirty) {
_initialize_version(version);
for (int i = 0; i < group_enabled.size(); i++) {
if (!group_enabled[i]) {
_allocate_placeholders(version, i);
continue;
}
_compile_version_start(version, i);
}
}
_compile_ensure_finished(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];
}
void ShaderRD::enable_group(int p_group) {
ERR_FAIL_INDEX(p_group, group_enabled.size());
if (group_enabled[p_group]) {
// Group already enabled, do nothing.
return;
}
group_enabled.write[p_group] = true;
// Compile all versions again to include the new group.
List<RID> all_versions;
version_owner.get_owned_list(&all_versions);
for (const RID &E : all_versions) {
Version *version = version_owner.get_or_null(E);
_compile_version_start(version, p_group);
}
}
bool ShaderRD::is_group_enabled(int p_group) const {
return group_enabled[p_group];
}
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.is_empty());
general_defines = p_general_defines.utf8();
// When initialized this way, there is just one group and its always enabled.
group_to_variant_map.insert(0, LocalVector<int>{});
group_enabled.push_back(true);
for (int i = 0; i < p_variant_defines.size(); i++) {
variant_defines.push_back(VariantDefine(0, p_variant_defines[i], true));
variants_enabled.push_back(true);
variant_to_group.push_back(0);
group_to_variant_map[0].push_back(i);
}
if (!shader_cache_dir.is_empty()) {
group_sha256.resize(1);
_initialize_cache();
}
}
void ShaderRD::_initialize_cache() {
for (const KeyValue<int, LocalVector<int>> &E : group_to_variant_map) {
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());
hash_build.append("[group_id]");
hash_build.append(itos(E.key));
for (uint32_t i = 0; i < E.value.size(); i++) {
hash_build.append("[variant_defines:" + itos(E.value[i]) + "]");
hash_build.append(variant_defines[E.value[i]].text.get_data());
}
group_sha256[E.key] = 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(group_sha256[E.key]) != OK) {
Error err = d->make_dir(group_sha256[E.key]);
ERR_FAIL_COND(err != OK);
}
shader_cache_dir_valid = true;
print_verbose("Shader '" + name + "' (group " + itos(E.key) + ") SHA256: " + group_sha256[E.key]);
}
}
// Same as above, but allows specifying shader compilation groups.
void ShaderRD::initialize(const Vector<VariantDefine> &p_variant_defines, const String &p_general_defines) {
ERR_FAIL_COND(variant_defines.size());
ERR_FAIL_COND(p_variant_defines.is_empty());
general_defines = p_general_defines.utf8();
int max_group_id = 0;
for (int i = 0; i < p_variant_defines.size(); i++) {
// Fill variant array.
variant_defines.push_back(p_variant_defines[i]);
variants_enabled.push_back(true);
variant_to_group.push_back(p_variant_defines[i].group);
// Map variant array index to group id, so we can iterate over groups later.
if (!group_to_variant_map.has(p_variant_defines[i].group)) {
group_to_variant_map.insert(p_variant_defines[i].group, LocalVector<int>{});
}
group_to_variant_map[p_variant_defines[i].group].push_back(i);
// Track max size.
if (p_variant_defines[i].group > max_group_id) {
max_group_id = p_variant_defines[i].group;
}
}
// Set all to groups to false, then enable those that should be default.
group_enabled.resize_zeroed(max_group_id + 1);
bool *enabled_ptr = group_enabled.ptrw();
for (int i = 0; i < p_variant_defines.size(); i++) {
if (p_variant_defines[i].default_enabled) {
enabled_ptr[p_variant_defines[i].group] = true;
}
}
if (!shader_cache_dir.is_empty()) {
group_sha256.resize(max_group_id + 1);
_initialize_cache();
}
}
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();
}
}
}