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godot/scene/resources/image_texture.cpp
2023-07-26 20:46:34 +10:00

515 lines
17 KiB
C++

/**************************************************************************/
/* image_texture.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 "image_texture.h"
#include "core/io/image_loader.h"
#include "scene/resources/bit_map.h"
#include "scene/resources/placeholder_textures.h"
void ImageTexture::reload_from_file() {
String path = ResourceLoader::path_remap(get_path());
if (!path.is_resource_file()) {
return;
}
Ref<Image> img;
img.instantiate();
if (ImageLoader::load_image(path, img) == OK) {
set_image(img);
} else {
Resource::reload_from_file();
notify_property_list_changed();
emit_changed();
}
}
bool ImageTexture::_set(const StringName &p_name, const Variant &p_value) {
if (p_name == "image") {
set_image(p_value);
return true;
}
return false;
}
bool ImageTexture::_get(const StringName &p_name, Variant &r_ret) const {
if (p_name == "image") {
r_ret = get_image();
return true;
}
return false;
}
void ImageTexture::_get_property_list(List<PropertyInfo> *p_list) const {
p_list->push_back(PropertyInfo(Variant::OBJECT, PNAME("image"), PROPERTY_HINT_RESOURCE_TYPE, "Image", PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_RESOURCE_NOT_PERSISTENT));
}
Ref<ImageTexture> ImageTexture::create_from_image(const Ref<Image> &p_image) {
ERR_FAIL_COND_V_MSG(p_image.is_null(), Ref<ImageTexture>(), "Invalid image: null");
ERR_FAIL_COND_V_MSG(p_image->is_empty(), Ref<ImageTexture>(), "Invalid image: image is empty");
Ref<ImageTexture> image_texture;
image_texture.instantiate();
image_texture->set_image(p_image);
return image_texture;
}
void ImageTexture::set_image(const Ref<Image> &p_image) {
ERR_FAIL_COND_MSG(p_image.is_null() || p_image->is_empty(), "Invalid image");
w = p_image->get_width();
h = p_image->get_height();
format = p_image->get_format();
mipmaps = p_image->has_mipmaps();
if (texture.is_null()) {
texture = RenderingServer::get_singleton()->texture_2d_create(p_image);
} else {
RID new_texture = RenderingServer::get_singleton()->texture_2d_create(p_image);
RenderingServer::get_singleton()->texture_replace(texture, new_texture);
}
notify_property_list_changed();
emit_changed();
image_stored = true;
}
Image::Format ImageTexture::get_format() const {
return format;
}
void ImageTexture::update(const Ref<Image> &p_image) {
ERR_FAIL_COND_MSG(p_image.is_null(), "Invalid image");
ERR_FAIL_COND_MSG(texture.is_null(), "Texture is not initialized.");
ERR_FAIL_COND_MSG(p_image->get_width() != w || p_image->get_height() != h,
"The new image dimensions must match the texture size.");
ERR_FAIL_COND_MSG(p_image->get_format() != format,
"The new image format must match the texture's image format.");
ERR_FAIL_COND_MSG(mipmaps != p_image->has_mipmaps(),
"The new image mipmaps configuration must match the texture's image mipmaps configuration");
RS::get_singleton()->texture_2d_update(texture, p_image);
notify_property_list_changed();
emit_changed();
alpha_cache.unref();
image_stored = true;
}
Ref<Image> ImageTexture::get_image() const {
if (image_stored) {
return RenderingServer::get_singleton()->texture_2d_get(texture);
} else {
return Ref<Image>();
}
}
int ImageTexture::get_width() const {
return w;
}
int ImageTexture::get_height() const {
return h;
}
RID ImageTexture::get_rid() const {
if (texture.is_null()) {
// We are in trouble, create something temporary.
texture = RenderingServer::get_singleton()->texture_2d_placeholder_create();
}
return texture;
}
bool ImageTexture::has_alpha() const {
return (format == Image::FORMAT_LA8 || format == Image::FORMAT_RGBA8);
}
void ImageTexture::draw(RID p_canvas_item, const Point2 &p_pos, const Color &p_modulate, bool p_transpose) const {
if ((w | h) == 0) {
return;
}
RenderingServer::get_singleton()->canvas_item_add_texture_rect(p_canvas_item, Rect2(p_pos, Size2(w, h)), texture, false, p_modulate, p_transpose);
}
void ImageTexture::draw_rect(RID p_canvas_item, const Rect2 &p_rect, bool p_tile, const Color &p_modulate, bool p_transpose) const {
if ((w | h) == 0) {
return;
}
RenderingServer::get_singleton()->canvas_item_add_texture_rect(p_canvas_item, p_rect, texture, p_tile, p_modulate, p_transpose);
}
void ImageTexture::draw_rect_region(RID p_canvas_item, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate, bool p_transpose, bool p_clip_uv) const {
if ((w | h) == 0) {
return;
}
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas_item, p_rect, texture, p_src_rect, p_modulate, p_transpose, p_clip_uv);
}
bool ImageTexture::is_pixel_opaque(int p_x, int p_y) const {
if (!alpha_cache.is_valid()) {
Ref<Image> img = get_image();
if (img.is_valid()) {
if (img->is_compressed()) { //must decompress, if compressed
Ref<Image> decom = img->duplicate();
decom->decompress();
img = decom;
}
alpha_cache.instantiate();
alpha_cache->create_from_image_alpha(img);
}
}
if (alpha_cache.is_valid()) {
int aw = int(alpha_cache->get_size().width);
int ah = int(alpha_cache->get_size().height);
if (aw == 0 || ah == 0) {
return true;
}
int x = p_x * aw / w;
int y = p_y * ah / h;
x = CLAMP(x, 0, aw);
y = CLAMP(y, 0, ah);
return alpha_cache->get_bit(x, y);
}
return true;
}
void ImageTexture::set_size_override(const Size2i &p_size) {
Size2i s = p_size;
if (s.x != 0) {
w = s.x;
}
if (s.y != 0) {
h = s.y;
}
RenderingServer::get_singleton()->texture_set_size_override(texture, w, h);
}
void ImageTexture::set_path(const String &p_path, bool p_take_over) {
if (texture.is_valid()) {
RenderingServer::get_singleton()->texture_set_path(texture, p_path);
}
Resource::set_path(p_path, p_take_over);
}
void ImageTexture::_bind_methods() {
ClassDB::bind_static_method("ImageTexture", D_METHOD("create_from_image", "image"), &ImageTexture::create_from_image);
ClassDB::bind_method(D_METHOD("get_format"), &ImageTexture::get_format);
ClassDB::bind_method(D_METHOD("set_image", "image"), &ImageTexture::set_image);
ClassDB::bind_method(D_METHOD("update", "image"), &ImageTexture::update);
ClassDB::bind_method(D_METHOD("set_size_override", "size"), &ImageTexture::set_size_override);
}
ImageTexture::ImageTexture() {}
ImageTexture::~ImageTexture() {
if (texture.is_valid()) {
ERR_FAIL_NULL(RenderingServer::get_singleton());
RenderingServer::get_singleton()->free(texture);
}
}
Image::Format ImageTextureLayered::get_format() const {
return format;
}
int ImageTextureLayered::get_width() const {
return width;
}
int ImageTextureLayered::get_height() const {
return height;
}
int ImageTextureLayered::get_layers() const {
return layers;
}
bool ImageTextureLayered::has_mipmaps() const {
return mipmaps;
}
ImageTextureLayered::LayeredType ImageTextureLayered::get_layered_type() const {
return layered_type;
}
Error ImageTextureLayered::_create_from_images(const TypedArray<Image> &p_images) {
Vector<Ref<Image>> images;
for (int i = 0; i < p_images.size(); i++) {
Ref<Image> img = p_images[i];
ERR_FAIL_COND_V(img.is_null(), ERR_INVALID_PARAMETER);
images.push_back(img);
}
return create_from_images(images);
}
TypedArray<Image> ImageTextureLayered::_get_images() const {
TypedArray<Image> images;
for (int i = 0; i < layers; i++) {
images.push_back(get_layer_data(i));
}
return images;
}
void ImageTextureLayered::_set_images(const TypedArray<Image> &p_images) {
ERR_FAIL_COND(_create_from_images(p_images) != OK);
}
Error ImageTextureLayered::create_from_images(Vector<Ref<Image>> p_images) {
int new_layers = p_images.size();
ERR_FAIL_COND_V(new_layers == 0, ERR_INVALID_PARAMETER);
if (layered_type == LAYERED_TYPE_CUBEMAP) {
ERR_FAIL_COND_V_MSG(new_layers != 6, ERR_INVALID_PARAMETER,
"Cubemaps require exactly 6 layers");
} else if (layered_type == LAYERED_TYPE_CUBEMAP_ARRAY) {
ERR_FAIL_COND_V_MSG((new_layers % 6) != 0, ERR_INVALID_PARAMETER,
"Cubemap array layers must be a multiple of 6");
}
ERR_FAIL_COND_V(p_images[0].is_null() || p_images[0]->is_empty(), ERR_INVALID_PARAMETER);
Image::Format new_format = p_images[0]->get_format();
int new_width = p_images[0]->get_width();
int new_height = p_images[0]->get_height();
bool new_mipmaps = p_images[0]->has_mipmaps();
for (int i = 1; i < p_images.size(); i++) {
ERR_FAIL_COND_V_MSG(p_images[i]->get_format() != new_format, ERR_INVALID_PARAMETER,
"All images must share the same format");
ERR_FAIL_COND_V_MSG(p_images[i]->get_width() != new_width || p_images[i]->get_height() != new_height, ERR_INVALID_PARAMETER,
"All images must share the same dimensions");
ERR_FAIL_COND_V_MSG(p_images[i]->has_mipmaps() != new_mipmaps, ERR_INVALID_PARAMETER,
"All images must share the usage of mipmaps");
}
if (texture.is_valid()) {
RID new_texture = RS::get_singleton()->texture_2d_layered_create(p_images, RS::TextureLayeredType(layered_type));
ERR_FAIL_COND_V(!new_texture.is_valid(), ERR_CANT_CREATE);
RS::get_singleton()->texture_replace(texture, new_texture);
} else {
texture = RS::get_singleton()->texture_2d_layered_create(p_images, RS::TextureLayeredType(layered_type));
ERR_FAIL_COND_V(!texture.is_valid(), ERR_CANT_CREATE);
}
format = new_format;
width = new_width;
height = new_height;
layers = new_layers;
mipmaps = new_mipmaps;
return OK;
}
void ImageTextureLayered::update_layer(const Ref<Image> &p_image, int p_layer) {
ERR_FAIL_COND_MSG(texture.is_null(), "Texture is not initialized.");
ERR_FAIL_COND_MSG(p_image.is_null(), "Invalid image.");
ERR_FAIL_COND_MSG(p_image->get_format() != format, "Image format must match texture's image format.");
ERR_FAIL_COND_MSG(p_image->get_width() != width || p_image->get_height() != height, "Image size must match texture's image size.");
ERR_FAIL_COND_MSG(p_image->has_mipmaps() != mipmaps, "Image mipmap configuration must match texture's image mipmap configuration.");
ERR_FAIL_INDEX_MSG(p_layer, layers, "Layer index is out of bounds.");
RS::get_singleton()->texture_2d_update(texture, p_image, p_layer);
}
Ref<Image> ImageTextureLayered::get_layer_data(int p_layer) const {
ERR_FAIL_INDEX_V(p_layer, layers, Ref<Image>());
return RS::get_singleton()->texture_2d_layer_get(texture, p_layer);
}
RID ImageTextureLayered::get_rid() const {
if (texture.is_null()) {
texture = RS::get_singleton()->texture_2d_layered_placeholder_create(RS::TextureLayeredType(layered_type));
}
return texture;
}
void ImageTextureLayered::set_path(const String &p_path, bool p_take_over) {
if (texture.is_valid()) {
RS::get_singleton()->texture_set_path(texture, p_path);
}
Resource::set_path(p_path, p_take_over);
}
void ImageTextureLayered::_bind_methods() {
ClassDB::bind_method(D_METHOD("create_from_images", "images"), &ImageTextureLayered::_create_from_images);
ClassDB::bind_method(D_METHOD("update_layer", "image", "layer"), &ImageTextureLayered::update_layer);
ClassDB::bind_method(D_METHOD("_get_images"), &ImageTextureLayered::_get_images);
ClassDB::bind_method(D_METHOD("_set_images", "images"), &ImageTextureLayered::_set_images);
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "_images", PROPERTY_HINT_ARRAY_TYPE, "Image", PROPERTY_USAGE_INTERNAL | PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_RESOURCE_NOT_PERSISTENT), "_set_images", "_get_images");
}
ImageTextureLayered::ImageTextureLayered(LayeredType p_layered_type) {
layered_type = p_layered_type;
}
ImageTextureLayered::~ImageTextureLayered() {
if (texture.is_valid()) {
ERR_FAIL_NULL(RenderingServer::get_singleton());
RS::get_singleton()->free(texture);
}
}
Image::Format ImageTexture3D::get_format() const {
return format;
}
int ImageTexture3D::get_width() const {
return width;
}
int ImageTexture3D::get_height() const {
return height;
}
int ImageTexture3D::get_depth() const {
return depth;
}
bool ImageTexture3D::has_mipmaps() const {
return mipmaps;
}
Error ImageTexture3D::_create(Image::Format p_format, int p_width, int p_height, int p_depth, bool p_mipmaps, const TypedArray<Image> &p_data) {
Vector<Ref<Image>> images;
images.resize(p_data.size());
for (int i = 0; i < images.size(); i++) {
images.write[i] = p_data[i];
}
return create(p_format, p_width, p_height, p_depth, p_mipmaps, images);
}
void ImageTexture3D::_update(const TypedArray<Image> &p_data) {
Vector<Ref<Image>> images;
images.resize(p_data.size());
for (int i = 0; i < images.size(); i++) {
images.write[i] = p_data[i];
}
return update(images);
}
Error ImageTexture3D::create(Image::Format p_format, int p_width, int p_height, int p_depth, bool p_mipmaps, const Vector<Ref<Image>> &p_data) {
RID tex = RenderingServer::get_singleton()->texture_3d_create(p_format, p_width, p_height, p_depth, p_mipmaps, p_data);
ERR_FAIL_COND_V(tex.is_null(), ERR_CANT_CREATE);
if (texture.is_valid()) {
RenderingServer::get_singleton()->texture_replace(texture, tex);
} else {
texture = tex;
}
format = p_format;
width = p_width;
height = p_height;
depth = p_depth;
mipmaps = p_mipmaps;
return OK;
}
void ImageTexture3D::update(const Vector<Ref<Image>> &p_data) {
ERR_FAIL_COND(!texture.is_valid());
RenderingServer::get_singleton()->texture_3d_update(texture, p_data);
}
Vector<Ref<Image>> ImageTexture3D::get_data() const {
ERR_FAIL_COND_V(!texture.is_valid(), Vector<Ref<Image>>());
return RS::get_singleton()->texture_3d_get(texture);
}
RID ImageTexture3D::get_rid() const {
if (!texture.is_valid()) {
texture = RS::get_singleton()->texture_3d_placeholder_create();
}
return texture;
}
void ImageTexture3D::set_path(const String &p_path, bool p_take_over) {
if (texture.is_valid()) {
RenderingServer::get_singleton()->texture_set_path(texture, p_path);
}
Resource::set_path(p_path, p_take_over);
}
void ImageTexture3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("create", "format", "width", "height", "depth", "use_mipmaps", "data"), &ImageTexture3D::_create);
ClassDB::bind_method(D_METHOD("update", "data"), &ImageTexture3D::_update);
}
ImageTexture3D::ImageTexture3D() {
}
ImageTexture3D::~ImageTexture3D() {
if (texture.is_valid()) {
ERR_FAIL_NULL(RenderingServer::get_singleton());
RS::get_singleton()->free(texture);
}
}
void Texture2DArray::_bind_methods() {
ClassDB::bind_method(D_METHOD("create_placeholder"), &Texture2DArray::create_placeholder);
}
Ref<Resource> Texture2DArray::create_placeholder() const {
Ref<PlaceholderTexture2DArray> placeholder;
placeholder.instantiate();
placeholder->set_size(Size2i(get_width(), get_height()));
placeholder->set_layers(get_layers());
return placeholder;
}
void Cubemap::_bind_methods() {
ClassDB::bind_method(D_METHOD("create_placeholder"), &Cubemap::create_placeholder);
}
Ref<Resource> Cubemap::create_placeholder() const {
Ref<PlaceholderCubemap> placeholder;
placeholder.instantiate();
placeholder->set_size(Size2i(get_width(), get_height()));
placeholder->set_layers(get_layers());
return placeholder;
}
void CubemapArray::_bind_methods() {
ClassDB::bind_method(D_METHOD("create_placeholder"), &CubemapArray::create_placeholder);
}
Ref<Resource> CubemapArray::create_placeholder() const {
Ref<PlaceholderCubemapArray> placeholder;
placeholder.instantiate();
placeholder->set_size(Size2i(get_width(), get_height()));
placeholder->set_layers(get_layers());
return placeholder;
}