godot/editor/import/resource_importer_layered_texture.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

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/*************************************************************************/
/* resource_importer_layered_texture.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 "resource_importer_layered_texture.h"
#include "resource_importer_texture.h"
#include "core/io/config_file.h"
#include "core/io/image_loader.h"
#include "editor/editor_file_system.h"
#include "editor/editor_node.h"
#include "scene/resources/texture.h"
String ResourceImporterLayeredTexture::get_importer_name() const {
return is_3d ? "texture_3d" : "texture_array";
}
String ResourceImporterLayeredTexture::get_visible_name() const {
return is_3d ? "Texture3D" : "TextureArray";
}
void ResourceImporterLayeredTexture::get_recognized_extensions(List<String> *p_extensions) const {
ImageLoader::get_recognized_extensions(p_extensions);
}
String ResourceImporterLayeredTexture::get_save_extension() const {
return is_3d ? "tex3d" : "texarr";
}
String ResourceImporterLayeredTexture::get_resource_type() const {
return is_3d ? "Texture3D" : "TextureArray";
}
bool ResourceImporterLayeredTexture::get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const {
return true;
}
int ResourceImporterLayeredTexture::get_preset_count() const {
return 3;
}
String ResourceImporterLayeredTexture::get_preset_name(int p_idx) const {
static const char *preset_names[] = {
"3D",
"2D",
"ColorCorrect"
};
return preset_names[p_idx];
}
void ResourceImporterLayeredTexture::get_import_options(List<ImportOption> *r_options, int p_preset) const {
r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "compress/mode", PROPERTY_HINT_ENUM, "Lossless,Video RAM,Uncompressed", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED), p_preset == PRESET_3D ? 1 : 0));
r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "compress/no_bptc_if_rgb"), false));
r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "flags/repeat", PROPERTY_HINT_ENUM, "Disabled,Enabled,Mirrored"), 0));
r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "flags/filter"), true));
r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "flags/mipmaps"), p_preset == PRESET_COLOR_CORRECT ? 0 : 1));
r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "flags/srgb", PROPERTY_HINT_ENUM, "Disable,Enable"), p_preset == PRESET_3D ? 1 : 0));
r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "slices/horizontal", PROPERTY_HINT_RANGE, "1,256,1"), p_preset == PRESET_COLOR_CORRECT ? 16 : 8));
r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "slices/vertical", PROPERTY_HINT_RANGE, "1,256,1"), p_preset == PRESET_COLOR_CORRECT ? 1 : 8));
}
void ResourceImporterLayeredTexture::_save_tex(const Vector<Ref<Image> > &p_images, const String &p_to_path, int p_compress_mode, Image::CompressMode p_vram_compression, bool p_mipmaps, int p_texture_flags) {
FileAccess *f = FileAccess::open(p_to_path, FileAccess::WRITE);
f->store_8('G');
f->store_8('D');
if (is_3d) {
f->store_8('3');
} else {
f->store_8('A');
}
f->store_8('T'); //godot streamable texture
f->store_32(p_images[0]->get_width());
f->store_32(p_images[0]->get_height());
f->store_32(p_images.size()); //depth
f->store_32(p_texture_flags);
if (p_compress_mode != COMPRESS_VIDEO_RAM) {
//vram needs to do a first compression to tell what the format is, for the rest its ok
f->store_32(p_images[0]->get_format());
f->store_32(p_compress_mode); // 0 - lossless (PNG), 1 - vram, 2 - uncompressed
}
if ((p_compress_mode == COMPRESS_LOSSLESS) && p_images[0]->get_format() > Image::FORMAT_RGBA8) {
p_compress_mode = COMPRESS_UNCOMPRESSED; //these can't go as lossy
}
for (int i = 0; i < p_images.size(); i++) {
switch (p_compress_mode) {
case COMPRESS_LOSSLESS: {
Ref<Image> image = p_images[i]->duplicate();
if (p_mipmaps) {
image->generate_mipmaps();
} else {
image->clear_mipmaps();
}
int mmc = image->get_mipmap_count() + 1;
f->store_32(mmc);
for (int j = 0; j < mmc; j++) {
if (j > 0) {
image->shrink_x2();
}
PoolVector<uint8_t> data = Image::lossless_packer(image);
int data_len = data.size();
f->store_32(data_len);
PoolVector<uint8_t>::Read r = data.read();
f->store_buffer(r.ptr(), data_len);
}
} break;
case COMPRESS_VIDEO_RAM: {
Ref<Image> image = p_images[i]->duplicate();
image->generate_mipmaps(false);
Image::CompressSource csource = Image::COMPRESS_SOURCE_LAYERED;
image->compress(p_vram_compression, csource, 0.7);
if (i == 0) {
//hack so we can properly tell the format
f->store_32(image->get_format());
f->store_32(p_compress_mode); // 0 - lossless (PNG), 1 - vram, 2 - uncompressed
}
PoolVector<uint8_t> data = image->get_data();
int dl = data.size();
PoolVector<uint8_t>::Read r = data.read();
f->store_buffer(r.ptr(), dl);
} break;
case COMPRESS_UNCOMPRESSED: {
Ref<Image> image = p_images[i]->duplicate();
if (p_mipmaps) {
image->generate_mipmaps();
} else {
image->clear_mipmaps();
}
PoolVector<uint8_t> data = image->get_data();
int dl = data.size();
PoolVector<uint8_t>::Read r = data.read();
f->store_buffer(r.ptr(), dl);
} break;
}
}
memdelete(f);
}
Error ResourceImporterLayeredTexture::import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
int compress_mode = p_options["compress/mode"];
int no_bptc_if_rgb = p_options["compress/no_bptc_if_rgb"];
int repeat = p_options["flags/repeat"];
bool filter = p_options["flags/filter"];
bool mipmaps = p_options["flags/mipmaps"];
int srgb = p_options["flags/srgb"];
int hslices = p_options["slices/horizontal"];
int vslices = p_options["slices/vertical"];
Ref<Image> image;
image.instance();
Error err = ImageLoader::load_image(p_source_file, image, NULL, false, 1.0);
if (err != OK)
return err;
int tex_flags = 0;
if (repeat > 0)
tex_flags |= Texture::FLAG_REPEAT;
if (repeat == 2)
tex_flags |= Texture::FLAG_MIRRORED_REPEAT;
if (filter)
tex_flags |= Texture::FLAG_FILTER;
if (mipmaps || compress_mode == COMPRESS_VIDEO_RAM)
tex_flags |= Texture::FLAG_MIPMAPS;
if (srgb == 1)
tex_flags |= Texture::FLAG_CONVERT_TO_LINEAR;
Vector<Ref<Image> > slices;
int slice_w = image->get_width() / hslices;
int slice_h = image->get_height() / vslices;
//optimize
if (compress_mode == COMPRESS_VIDEO_RAM) {
//if using video ram, optimize
if (srgb) {
//remove alpha if not needed, so compression is more efficient
if (image->get_format() == Image::FORMAT_RGBA8 && !image->detect_alpha()) {
image->convert(Image::FORMAT_RGB8);
}
} else {
image->optimize_channels();
}
}
for (int i = 0; i < vslices; i++) {
for (int j = 0; j < hslices; j++) {
int x = slice_w * j;
int y = slice_h * i;
Ref<Image> slice = image->get_rect(Rect2(x, y, slice_w, slice_h));
ERR_CONTINUE(slice.is_null() || slice->empty());
if (slice->get_width() != slice_w || slice->get_height() != slice_h) {
slice->resize(slice_w, slice_h);
}
slices.push_back(slice);
}
}
String extension = get_save_extension();
Array formats_imported;
if (compress_mode == COMPRESS_VIDEO_RAM) {
//must import in all formats, in order of priority (so platform choses the best supported one. IE, etc2 over etc).
//Android, GLES 2.x
bool ok_on_pc = false;
bool encode_bptc = false;
if (ProjectSettings::get_singleton()->get("rendering/vram_compression/import_bptc")) {
encode_bptc = true;
if (no_bptc_if_rgb) {
Image::DetectChannels channels = image->get_detected_channels();
if (channels != Image::DETECTED_LA && channels != Image::DETECTED_RGBA) {
encode_bptc = false;
}
}
formats_imported.push_back("bptc");
}
if (encode_bptc) {
_save_tex(slices, p_save_path + ".bptc." + extension, compress_mode, Image::COMPRESS_BPTC, mipmaps, tex_flags);
r_platform_variants->push_back("bptc");
ok_on_pc = true;
}
if (ProjectSettings::get_singleton()->get("rendering/vram_compression/import_s3tc")) {
_save_tex(slices, p_save_path + ".s3tc." + extension, compress_mode, Image::COMPRESS_S3TC, mipmaps, tex_flags);
r_platform_variants->push_back("s3tc");
ok_on_pc = true;
formats_imported.push_back("s3tc");
}
if (ProjectSettings::get_singleton()->get("rendering/vram_compression/import_etc2")) {
_save_tex(slices, p_save_path + ".etc2." + extension, compress_mode, Image::COMPRESS_ETC2, mipmaps, tex_flags);
r_platform_variants->push_back("etc2");
formats_imported.push_back("etc2");
}
if (ProjectSettings::get_singleton()->get("rendering/vram_compression/import_etc")) {
_save_tex(slices, p_save_path + ".etc." + extension, compress_mode, Image::COMPRESS_ETC, mipmaps, tex_flags);
r_platform_variants->push_back("etc");
formats_imported.push_back("etc");
}
if (ProjectSettings::get_singleton()->get("rendering/vram_compression/import_pvrtc")) {
_save_tex(slices, p_save_path + ".pvrtc." + extension, compress_mode, Image::COMPRESS_PVRTC4, mipmaps, tex_flags);
r_platform_variants->push_back("pvrtc");
formats_imported.push_back("pvrtc");
}
if (!ok_on_pc) {
EditorNode::add_io_error("Warning, no suitable PC VRAM compression enabled in Project Settings. This texture will not display correctly on PC.");
}
} else {
//import normally
_save_tex(slices, p_save_path + "." + extension, compress_mode, Image::COMPRESS_S3TC /*this is ignored */, mipmaps, tex_flags);
}
if (r_metadata) {
Dictionary metadata;
metadata["vram_texture"] = compress_mode == COMPRESS_VIDEO_RAM;
if (formats_imported.size()) {
metadata["imported_formats"] = formats_imported;
}
*r_metadata = metadata;
}
return OK;
}
const char *ResourceImporterLayeredTexture::compression_formats[] = {
"bptc",
"s3tc",
"etc",
"etc2",
"pvrtc",
NULL
};
String ResourceImporterLayeredTexture::get_import_settings_string() const {
String s;
int index = 0;
while (compression_formats[index]) {
String setting_path = "rendering/vram_compression/import_" + String(compression_formats[index]);
bool test = ProjectSettings::get_singleton()->get(setting_path);
if (test) {
s += String(compression_formats[index]);
}
index++;
}
return s;
}
bool ResourceImporterLayeredTexture::are_import_settings_valid(const String &p_path) const {
//will become invalid if formats are missing to import
Dictionary metadata = ResourceFormatImporter::get_singleton()->get_resource_metadata(p_path);
if (!metadata.has("vram_texture")) {
return false;
}
bool vram = metadata["vram_texture"];
if (!vram) {
return true; //do not care about non vram
}
Vector<String> formats_imported;
if (metadata.has("imported_formats")) {
formats_imported = metadata["imported_formats"];
}
int index = 0;
bool valid = true;
while (compression_formats[index]) {
String setting_path = "rendering/vram_compression/import_" + String(compression_formats[index]);
bool test = ProjectSettings::get_singleton()->get(setting_path);
if (test) {
if (formats_imported.find(compression_formats[index]) == -1) {
valid = false;
break;
}
}
index++;
}
return valid;
}
ResourceImporterLayeredTexture *ResourceImporterLayeredTexture::singleton = NULL;
ResourceImporterLayeredTexture::ResourceImporterLayeredTexture() {
singleton = this;
is_3d = true;
}
ResourceImporterLayeredTexture::~ResourceImporterLayeredTexture() {
}