Make `ImageLoader` take bit field flags

core/io/image_loader.cpp

@@ -44,7 +44,7 @@ bool ImageFormatLoader::recognize(const String &p_extension) const {
 	return false;
 }
 
-Error ImageLoader::load_image(String p_file, Ref<Image> p_image, Ref<FileAccess> p_custom, bool p_force_linear, float p_scale) {
+Error ImageLoader::load_image(String p_file, Ref<Image> p_image, Ref<FileAccess> p_custom, uint32_t p_flags, float p_scale) {
 	ERR_FAIL_COND_V_MSG(p_image.is_null(), ERR_INVALID_PARAMETER, "It's not a reference to a valid Image object.");
 
 	Ref<FileAccess> f = p_custom;
@@ -60,7 +60,7 @@ Error ImageLoader::load_image(String p_file, Ref<Image> p_image, Ref<FileAccess>
 		if (!loader[i]->recognize(extension)) {
 			continue;
 		}
-		Error err = loader[i]->load_image(p_image, f, p_force_linear, p_scale);
+		Error err = loader[i]->load_image(p_image, f, p_flags, p_scale);
 		if (err != OK) {
 			ERR_PRINT("Error loading image: " + p_file);
 		}
@@ -152,7 +152,7 @@ Ref<Resource> ResourceFormatLoaderImage::load(const String &p_path, const String
 	Ref<Image> image;
 	image.instantiate();
 
-	Error err = ImageLoader::loader[idx]->load_image(image, f, false, 1.0);
+	Error err = ImageLoader::loader[idx]->load_image(image, f);
 
 	if (err != OK) {
 		if (r_error) {

core/io/image_loader.h

@@ -44,11 +44,16 @@ class ImageFormatLoader {
 	friend class ResourceFormatLoaderImage;
 
 protected:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> p_fileaccess, bool p_force_linear, float p_scale) = 0;
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> p_fileaccess, uint32_t p_flags = (uint32_t)FLAG_NONE, float p_scale = 1.0) = 0;
 	virtual void get_recognized_extensions(List<String> *p_extensions) const = 0;
 	bool recognize(const String &p_extension) const;
 
 public:
+	enum LoaderFlags {
+		FLAG_NONE = 0,
+		FLAG_FORCE_LINEAR = 1,
+	};
+
 	virtual ~ImageFormatLoader() {}
 };
 
@@ -58,7 +63,7 @@ class ImageLoader {
 
 protected:
 public:
-	static Error load_image(String p_file, Ref<Image> p_image, Ref<FileAccess> p_custom = Ref<FileAccess>(), bool p_force_linear = false, float p_scale = 1.0);
+	static Error load_image(String p_file, Ref<Image> p_image, Ref<FileAccess> p_custom = Ref<FileAccess>(), uint32_t p_flags = (uint32_t)ImageFormatLoader::FLAG_NONE, float p_scale = 1.0);
 	static void get_recognized_extensions(List<String> *p_extensions);
 	static ImageFormatLoader *recognize(const String &p_extension);
 

drivers/png/image_loader_png.cpp

@@ -36,7 +36,7 @@
 
 #include <string.h>
 
-Error ImageLoaderPNG::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale) {
+Error ImageLoaderPNG::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale) {
 	const uint64_t buffer_size = f->get_length();
 	Vector<uint8_t> file_buffer;
 	Error err = file_buffer.resize(buffer_size);
@@ -48,7 +48,7 @@ Error ImageLoaderPNG::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_f
 		f->get_buffer(writer, buffer_size);
 	}
 	const uint8_t *reader = file_buffer.ptr();
-	return PNGDriverCommon::png_to_image(reader, buffer_size, p_force_linear, p_image);
+	return PNGDriverCommon::png_to_image(reader, buffer_size, p_flags & FLAG_FORCE_LINEAR, p_image);
 }
 
 void ImageLoaderPNG::get_recognized_extensions(List<String> *p_extensions) const {

drivers/png/image_loader_png.h

@@ -40,7 +40,7 @@ private:
 	static Ref<Image> load_mem_png(const uint8_t *p_png, int p_size);
 
 public:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale);
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale);
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	ImageLoaderPNG();
 };

editor/import/resource_importer_layered_texture.cpp

@@ -327,7 +327,7 @@ Error ResourceImporterLayeredTexture::import(const String &p_source_file, const
 
 	Ref<Image> image;
 	image.instantiate();
-	Error err = ImageLoader::load_image(p_source_file, image, nullptr, false, 1.0);
+	Error err = ImageLoader::load_image(p_source_file, image);
 	if (err != OK) {
 		return err;
 	}

editor/import/resource_importer_texture.cpp

@@ -409,11 +409,26 @@ void ResourceImporterTexture::_save_ctex(const Ref<Image> &p_image, const String
 }
 
 Error ResourceImporterTexture::import(const String &p_source_file, const String &p_save_path, const HashMap<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+	// Parse import options.
+	int32_t loader_flags = ImageFormatLoader::FLAG_NONE;
+
+	// Compression.
 	CompressMode compress_mode = CompressMode(int(p_options["compress/mode"]));
 	const float lossy = p_options["compress/lossy_quality"];
 	const int pack_channels = p_options["compress/channel_pack"];
+	const int normal = p_options["compress/normal_map"];
+	const int hdr_compression = p_options["compress/hdr_compression"];
+	const int bptc_ldr = p_options["compress/bptc_ldr"];
+
+	// Mipmaps.
 	const bool mipmaps = p_options["mipmaps/generate"];
 	const uint32_t mipmap_limit = mipmaps ? uint32_t(p_options["mipmaps/limit"]) : uint32_t(-1);
+
+	// Roughness.
+	const int roughness = p_options["roughness/mode"];
+	const String normal_map = p_options["roughness/src_normal"];
+
+	// Processing.
 	const bool fix_alpha_border = p_options["process/fix_alpha_border"];
 	const bool premult_alpha = p_options["process/premult_alpha"];
 	const bool normal_map_invert_y = p_options["process/normal_map_invert_y"];
@@ -421,29 +436,29 @@ Error ResourceImporterTexture::import(const String &p_source_file, const String
 	const bool stream = false;
 	const int size_limit = p_options["process/size_limit"];
 	const bool hdr_as_srgb = p_options["process/hdr_as_srgb"];
+	if (hdr_as_srgb) {
+		loader_flags |= ImageFormatLoader::FLAG_FORCE_LINEAR;
+	}
 	const bool hdr_clamp_exposure = p_options["process/hdr_clamp_exposure"];
-	const int normal = p_options["compress/normal_map"];
-	const int hdr_compression = p_options["compress/hdr_compression"];
-	const int bptc_ldr = p_options["compress/bptc_ldr"];
-	const int roughness = p_options["roughness/mode"];
-	const String normal_map = p_options["roughness/src_normal"];
+
 	float scale = 1.0;
+	// SVG-specific options.
 	if (p_options.has("svg/scale")) {
 		scale = p_options["svg/scale"];
 	}
 
 	Ref<Image> normal_image;
 	Image::RoughnessChannel roughness_channel = Image::ROUGHNESS_CHANNEL_R;
-
 	if (mipmaps && roughness > 1 && FileAccess::exists(normal_map)) {
 		normal_image.instantiate();
 		if (ImageLoader::load_image(normal_map, normal_image) == OK) {
 			roughness_channel = Image::RoughnessChannel(roughness - 2);
 		}
 	}
+
 	Ref<Image> image;
 	image.instantiate();
-	Error err = ImageLoader::load_image(p_source_file, image, nullptr, hdr_as_srgb, scale);
+	Error err = ImageLoader::load_image(p_source_file, image, nullptr, loader_flags, scale);
 	if (err != OK) {
 		return err;
 	}

modules/bmp/image_loader_bmp.cpp

@@ -200,7 +200,7 @@ Error ImageLoaderBMP::convert_to_image(Ref<Image> p_image,
 	return err;
 }
 
-Error ImageLoaderBMP::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale) {
+Error ImageLoaderBMP::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale) {
 	bmp_header_s bmp_header;
 	Error err = ERR_INVALID_DATA;
 

modules/bmp/image_loader_bmp.h

@@ -83,7 +83,7 @@ protected:
 			const bmp_header_s &p_header);
 
 public:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale);
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale);
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	ImageLoaderBMP();
 };

modules/hdr/image_loader_hdr.cpp

@@ -33,7 +33,7 @@
 #include "core/os/os.h"
 #include "core/string/print_string.h"
 
-Error ImageLoaderHDR::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale) {
+Error ImageLoaderHDR::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale) {
 	String header = f->get_token();
 
 	ERR_FAIL_COND_V_MSG(header != "#?RADIANCE" && header != "#?RGBE", ERR_FILE_UNRECOGNIZED, "Unsupported header information in HDR: " + header + ".");
@@ -131,7 +131,7 @@ Error ImageLoaderHDR::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_f
 					ptr[1] * exp / 255.0,
 					ptr[2] * exp / 255.0);
 
-			if (p_force_linear) {
+			if (p_flags & FLAG_FORCE_LINEAR) {
 				c = c.srgb_to_linear();
 			}
 

modules/hdr/image_loader_hdr.h

@@ -35,7 +35,7 @@
 
 class ImageLoaderHDR : public ImageFormatLoader {
 public:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale);
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale);
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	ImageLoaderHDR();
 };

modules/jpg/image_loader_jpegd.cpp

@@ -104,7 +104,7 @@ Error jpeg_load_image_from_buffer(Image *p_image, const uint8_t *p_buffer, int p
 	return OK;
 }
 
-Error ImageLoaderJPG::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale) {
+Error ImageLoaderJPG::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale) {
 	Vector<uint8_t> src_image;
 	uint64_t src_image_len = f->get_length();
 	ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);

modules/jpg/image_loader_jpegd.h

@@ -35,7 +35,7 @@
 
 class ImageLoaderJPG : public ImageFormatLoader {
 public:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale);
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale);
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	ImageLoaderJPG();
 };

modules/svg/image_loader_svg.cpp

@@ -136,11 +136,11 @@ void ImageLoaderSVG::get_recognized_extensions(List<String> *p_extensions) const
 	p_extensions->push_back("svg");
 }
 
-Error ImageLoaderSVG::load_image(Ref<Image> p_image, Ref<FileAccess> p_fileaccess, bool p_force_linear, float p_scale) {
+Error ImageLoaderSVG::load_image(Ref<Image> p_image, Ref<FileAccess> p_fileaccess, uint32_t p_flags, float p_scale) {
 	String svg = p_fileaccess->get_as_utf8_string();
 	create_image_from_string(p_image, svg, p_scale, false, false);
 	ERR_FAIL_COND_V(p_image->is_empty(), FAILED);
-	if (p_force_linear) {
+	if (p_flags & FLAG_FORCE_LINEAR) {
 		p_image->srgb_to_linear();
 	}
 	return OK;

modules/svg/image_loader_svg.h

@@ -42,7 +42,7 @@ public:
 	void set_replace_colors(Dictionary p_replace_colors) { replace_colors = p_replace_colors; }
 	void create_image_from_string(Ref<Image> p_image, String p_string, float p_scale, bool p_upsample, bool p_convert_color);
 
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> p_fileaccess, bool p_force_linear, float p_scale) override;
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> p_fileaccess, uint32_t p_flags, float p_scale) override;
 	virtual void get_recognized_extensions(List<String> *p_extensions) const override;
 };
 

modules/tga/image_loader_tga.cpp

@@ -230,7 +230,7 @@ Error ImageLoaderTGA::convert_to_image(Ref<Image> p_image, const uint8_t *p_buff
 	return OK;
 }
 
-Error ImageLoaderTGA::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale) {
+Error ImageLoaderTGA::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale) {
 	Vector<uint8_t> src_image;
 	uint64_t src_image_len = f->get_length();
 	ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);

modules/tga/image_loader_tga.h

@@ -73,7 +73,7 @@ class ImageLoaderTGA : public ImageFormatLoader {
 	static Error convert_to_image(Ref<Image> p_image, const uint8_t *p_buffer, const tga_header_s &p_header, const uint8_t *p_palette, const bool p_is_monochrome, size_t p_input_size);
 
 public:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale);
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale);
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	ImageLoaderTGA();
 };

modules/tinyexr/image_loader_tinyexr.cpp

@@ -37,7 +37,7 @@
 
 #include "thirdparty/tinyexr/tinyexr.h"
 
-Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale) {
+Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale) {
 	Vector<uint8_t> src_image;
 	uint64_t src_image_len = f->get_length();
 	ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);
@@ -229,7 +229,7 @@ Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool
 							color.a = *a_channel++;
 						}
 
-						if (p_force_linear) {
+						if (p_flags & FLAG_FORCE_LINEAR) {
 							color = color.srgb_to_linear();
 						}
 
@@ -260,7 +260,7 @@ Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool
 							color.a = *a_channel++;
 						}
 
-						if (p_force_linear) {
+						if (p_flags & FLAG_FORCE_LINEAR) {
 							color = color.srgb_to_linear();
 						}
 

modules/tinyexr/image_loader_tinyexr.h

@@ -35,7 +35,7 @@
 
 class ImageLoaderTinyEXR : public ImageFormatLoader {
 public:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale);
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale);
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	ImageLoaderTinyEXR();
 };

modules/webp/image_loader_webp.cpp

@@ -48,7 +48,7 @@ static Ref<Image> _webp_mem_loader_func(const uint8_t *p_png, int p_size) {
 	return img;
 }
 
-Error ImageLoaderWebP::load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale) {
+Error ImageLoaderWebP::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale) {
 	Vector<uint8_t> src_image;
 	uint64_t src_image_len = f->get_length();
 	ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);

modules/webp/image_loader_webp.h

@@ -35,7 +35,7 @@
 
 class ImageLoaderWebP : public ImageFormatLoader {
 public:
-	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, bool p_force_linear, float p_scale);
+	virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t p_flags, float p_scale);
 	virtual void get_recognized_extensions(List<String> *p_extensions) const;
 	ImageLoaderWebP();
 };