Add an option to disable boot splash filtering

Disabling filtering is usually desired in projects using a pixel art style.

This closes #19415.

13 files changed, 19 insertions, 16 deletions

diff --git a/doc/classes/VisualServer.xml b/doc/classes/VisualServer.xml
index 3997798cca..cb890cbc93 100644
--- a/doc/classes/VisualServer.xml
+++ b/doc/classes/VisualServer.xml
@@ -3157,8 +3157,10 @@
 			</argument>
 			<argument index="2" name="scale" type="bool">
 			</argument>
+			<argument index="3" name="use_filter" type="bool" default="true">
+			</argument>
 			<description>
-				Sets a boot image. The color defines the background color and if scale is [code]true[/code] the image will be scaled to fit the screen size.
+				Sets a boot image. The color defines the background color. If [code]scale[/code] is [code]true[/code], the image will be scaled to fit the screen size. If [code]use_filter[/code] is [code]true[/code], the image will be scaled with linear interpolation. If [code]use_filter[/code] is [code]false[/code], the image will be scaled with nearest-neighbor interpolation.
 			</description>
 		</method>
 		<method name="set_debug_generate_wireframes">
diff --git a/drivers/dummy/rasterizer_dummy.h b/drivers/dummy/rasterizer_dummy.h
index 253936ca34..db6a63a5e1 100644
--- a/drivers/dummy/rasterizer_dummy.h
+++ b/drivers/dummy/rasterizer_dummy.h
@@ -780,7 +780,7 @@ public:
 	RasterizerCanvas *get_canvas() { return &canvas; }
 	RasterizerScene *get_scene() { return &scene; }
 
-	void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale) {}
+	void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter = true) {}
 
 	void initialize() {}
 	void begin_frame(double frame_step) {}
diff --git a/drivers/gles2/rasterizer_gles2.cpp b/drivers/gles2/rasterizer_gles2.cpp
index f49f52e47b..cbd0e4a5d5 100644
--- a/drivers/gles2/rasterizer_gles2.cpp
+++ b/drivers/gles2/rasterizer_gles2.cpp
@@ -338,7 +338,7 @@ void RasterizerGLES2::clear_render_target(const Color &p_color) {
 	storage->frame.clear_request_color = p_color;
 }
 
-void RasterizerGLES2::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale) {
+void RasterizerGLES2::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter) {
 
 	if (p_image.is_null() || p_image->empty())
 		return;
@@ -360,7 +360,7 @@ void RasterizerGLES2::set_boot_image(const Ref<Image> &p_image, const Color &p_c
 	canvas->canvas_begin();
 
 	RID texture = storage->texture_create();
-	storage->texture_allocate(texture, p_image->get_width(), p_image->get_height(), 0, p_image->get_format(), VS::TEXTURE_TYPE_2D, VS::TEXTURE_FLAG_FILTER);
+	storage->texture_allocate(texture, p_image->get_width(), p_image->get_height(), 0, p_image->get_format(), VS::TEXTURE_TYPE_2D, p_use_filter ? VS::TEXTURE_FLAG_FILTER : 0);
 	storage->texture_set_data(texture, p_image);
 
 	Rect2 imgrect(0, 0, p_image->get_width(), p_image->get_height());
diff --git a/drivers/gles2/rasterizer_gles2.h b/drivers/gles2/rasterizer_gles2.h
index eeed86e263..4d0d961ae4 100644
--- a/drivers/gles2/rasterizer_gles2.h
+++ b/drivers/gles2/rasterizer_gles2.h
@@ -51,7 +51,7 @@ public:
 	virtual RasterizerCanvas *get_canvas();
 	virtual RasterizerScene *get_scene();
 
-	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale);
+	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter = true);
 
 	virtual void initialize();
 	virtual void begin_frame(double frame_step);
diff --git a/drivers/gles3/rasterizer_gles3.cpp b/drivers/gles3/rasterizer_gles3.cpp
index bdffb1ecdc..ea15a278d6 100644
--- a/drivers/gles3/rasterizer_gles3.cpp
+++ b/drivers/gles3/rasterizer_gles3.cpp
@@ -273,7 +273,7 @@ void RasterizerGLES3::clear_render_target(const Color &p_color) {
 	storage->frame.clear_request_color = p_color;
 }
 
-void RasterizerGLES3::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale) {
+void RasterizerGLES3::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter) {
 
 	if (p_image.is_null() || p_image->empty())
 		return;
@@ -296,7 +296,7 @@ void RasterizerGLES3::set_boot_image(const Ref<Image> &p_image, const Color &p_c
 	canvas->canvas_begin();
 
 	RID texture = storage->texture_create();
-	storage->texture_allocate(texture, p_image->get_width(), p_image->get_height(), 0, p_image->get_format(), VS::TEXTURE_TYPE_2D, VS::TEXTURE_FLAG_FILTER);
+	storage->texture_allocate(texture, p_image->get_width(), p_image->get_height(), 0, p_image->get_format(), VS::TEXTURE_TYPE_2D, p_use_filter ? VS::TEXTURE_FLAG_FILTER : 0);
 	storage->texture_set_data(texture, p_image);
 
 	Rect2 imgrect(0, 0, p_image->get_width(), p_image->get_height());
diff --git a/drivers/gles3/rasterizer_gles3.h b/drivers/gles3/rasterizer_gles3.h
index ad0d004c9d..8fa208a1aa 100644
--- a/drivers/gles3/rasterizer_gles3.h
+++ b/drivers/gles3/rasterizer_gles3.h
@@ -51,7 +51,7 @@ public:
 	virtual RasterizerCanvas *get_canvas();
 	virtual RasterizerScene *get_scene();
 
-	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale);
+	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter = true);
 
 	virtual void initialize();
 	virtual void begin_frame(double frame_step);
diff --git a/main/main.cpp b/main/main.cpp
index 3f01a17ea7..304bda0e62 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -1153,6 +1153,7 @@ Error Main::setup2(Thread::ID p_main_tid_override) {
 	if (show_logo) { //boot logo!
 		String boot_logo_path = GLOBAL_DEF("application/boot_splash/image", String());
 		bool boot_logo_scale = GLOBAL_DEF("application/boot_splash/fullsize", true);
+		bool boot_logo_filter = GLOBAL_DEF("application/boot_splash/use_filter", true);
 		ProjectSettings::get_singleton()->set_custom_property_info("application/boot_splash/image", PropertyInfo(Variant::STRING, "application/boot_splash/image", PROPERTY_HINT_FILE, "*.png"));
 
 		Ref<Image> boot_logo;
@@ -1169,7 +1170,7 @@ Error Main::setup2(Thread::ID p_main_tid_override) {
 		Color boot_bg_color = GLOBAL_DEF("application/boot_splash/bg_color", boot_splash_bg_color);
 		if (boot_logo.is_valid()) {
 			OS::get_singleton()->_msec_splash = OS::get_singleton()->get_ticks_msec();
-			VisualServer::get_singleton()->set_boot_image(boot_logo, boot_bg_color, boot_logo_scale);
+			VisualServer::get_singleton()->set_boot_image(boot_logo, boot_bg_color, boot_logo_scale, boot_logo_filter);
 
 		} else {
 #ifndef NO_DEFAULT_BOOT_LOGO
diff --git a/servers/visual/rasterizer.h b/servers/visual/rasterizer.h
index 31888261ec..77ab1b5548 100644
--- a/servers/visual/rasterizer.h
+++ b/servers/visual/rasterizer.h
@@ -1103,7 +1103,7 @@ public:
 	virtual RasterizerCanvas *get_canvas() = 0;
 	virtual RasterizerScene *get_scene() = 0;
 
-	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale) = 0;
+	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter = true) = 0;
 
 	virtual void initialize() = 0;
 	virtual void begin_frame(double frame_step) = 0;
diff --git a/servers/visual/visual_server_raster.cpp b/servers/visual/visual_server_raster.cpp
index 310aa16130..d45bda72b7 100644
--- a/servers/visual/visual_server_raster.cpp
+++ b/servers/visual/visual_server_raster.cpp
@@ -153,10 +153,10 @@ int VisualServerRaster::get_render_info(RenderInfo p_info) {
 
 /* TESTING */
 
-void VisualServerRaster::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale) {
+void VisualServerRaster::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter) {
 
 	redraw_request();
-	VSG::rasterizer->set_boot_image(p_image, p_color, p_scale);
+	VSG::rasterizer->set_boot_image(p_image, p_color, p_scale, p_use_filter);
 }
 void VisualServerRaster::set_default_clear_color(const Color &p_color) {
 	VSG::viewport->set_default_clear_color(p_color);
diff --git a/servers/visual/visual_server_raster.h b/servers/visual/visual_server_raster.h
index 921d55556d..81010c32d3 100644
--- a/servers/visual/visual_server_raster.h
+++ b/servers/visual/visual_server_raster.h
@@ -685,7 +685,7 @@ public:
 
 	/* TESTING */
 
-	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale);
+	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter = true);
 	virtual void set_default_clear_color(const Color &p_color);
 
 	virtual bool has_feature(Features p_feature) const;
diff --git a/servers/visual/visual_server_wrap_mt.h b/servers/visual/visual_server_wrap_mt.h
index cd24deb60c..d6da914c37 100644
--- a/servers/visual/visual_server_wrap_mt.h
+++ b/servers/visual/visual_server_wrap_mt.h
@@ -602,7 +602,7 @@ public:
 		return visual_server->get_render_info(p_info);
 	}
 
-	FUNC3(set_boot_image, const Ref<Image> &, const Color &, bool)
+	FUNC4(set_boot_image, const Ref<Image> &, const Color &, bool, bool)
 	FUNC1(set_default_clear_color, const Color &)
 
 	FUNC0R(RID, get_test_cube)
diff --git a/servers/visual_server.cpp b/servers/visual_server.cpp
index 0fe00ad61a..27288768eb 100644
--- a/servers/visual_server.cpp
+++ b/servers/visual_server.cpp
@@ -2047,7 +2047,7 @@ void VisualServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_test_texture"), &VisualServer::get_test_texture);
 	ClassDB::bind_method(D_METHOD("get_white_texture"), &VisualServer::get_white_texture);
 
-	ClassDB::bind_method(D_METHOD("set_boot_image", "image", "color", "scale"), &VisualServer::set_boot_image);
+	ClassDB::bind_method(D_METHOD("set_boot_image", "image", "color", "scale", "use_filter"), &VisualServer::set_boot_image, DEFVAL(true));
 	ClassDB::bind_method(D_METHOD("set_default_clear_color", "color"), &VisualServer::set_default_clear_color);
 
 	ClassDB::bind_method(D_METHOD("has_feature", "feature"), &VisualServer::has_feature);
diff --git a/servers/visual_server.h b/servers/visual_server.h
index 01be996bfc..8be8c1c1f1 100644
--- a/servers/visual_server.h
+++ b/servers/visual_server.h
@@ -1029,7 +1029,7 @@ public:
 	virtual void mesh_add_surface_from_mesh_data(RID p_mesh, const Geometry::MeshData &p_mesh_data);
 	virtual void mesh_add_surface_from_planes(RID p_mesh, const PoolVector<Plane> &p_planes);
 
-	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale) = 0;
+	virtual void set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter = true) = 0;
 	virtual void set_default_clear_color(const Color &p_color) = 0;
 
 	enum Features {