Add new scaling modes for splash screen

Removes the `fullsize` option which is superseded by `stretch_mode`.

Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>

1 files changed, 47 insertions, 13 deletions

diff --git a/servers/rendering/renderer_rd/renderer_compositor_rd.cpp b/servers/rendering/renderer_rd/renderer_compositor_rd.cpp
index 2f8ef696cd..009a39749c 100644
--- a/servers/rendering/renderer_rd/renderer_compositor_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_compositor_rd.cpp
@@ -159,7 +159,7 @@ void RendererCompositorRD::finalize() {
 	RD::get_singleton()->free(blit.sampler);
 }
 
-void RendererCompositorRD::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter) {
+void RendererCompositorRD::set_boot_image(const Ref<Image> &p_image, const Color &p_color, RenderingServer::SplashStretchMode p_stretch_mode, bool p_use_filter) {
 	RD::get_singleton()->prepare_screen_for_drawing();
 
 	RID texture = storage->texture_allocate();
@@ -182,22 +182,56 @@ void RendererCompositorRD::set_boot_image(const Ref<Image> &p_image, const Color
 
 	Rect2 imgrect(0, 0, p_image->get_width(), p_image->get_height());
 	Rect2 screenrect;
-	if (p_scale) {
-		if (window_size.width > window_size.height) {
-			//scale horizontally
+	switch (p_stretch_mode) {
+		case RenderingServer::SPLASH_STRETCH_MODE_DISABLED: {
+			screenrect = imgrect;
+			screenrect.position += ((window_size - screenrect.size) / 2.0).floor();
+		} break;
+		case RenderingServer::SPLASH_STRETCH_MODE_KEEP: {
+			if (window_size.width > window_size.height) {
+				// Scale horizontally.
+				screenrect.size.y = window_size.height;
+				screenrect.size.x = imgrect.size.x * window_size.height / imgrect.size.y;
+				screenrect.position.x = (window_size.width - screenrect.size.x) / 2;
+			} else {
+				// Scale vertically.
+				screenrect.size.x = window_size.width;
+				screenrect.size.y = imgrect.size.y * window_size.width / imgrect.size.x;
+				screenrect.position.y = (window_size.height - screenrect.size.y) / 2;
+			}
+		} break;
+		case RenderingServer::SPLASH_STRETCH_MODE_KEEP_WIDTH: {
+			// Scale vertically.
+			screenrect.size.x = window_size.width;
+			screenrect.size.y = imgrect.size.y * window_size.width / imgrect.size.x;
+			screenrect.position.y = (window_size.height - screenrect.size.y) / 2;
+		} break;
+		case RenderingServer::SPLASH_STRETCH_MODE_KEEP_HEIGHT: {
+			// Scale horizontally.
 			screenrect.size.y = window_size.height;
 			screenrect.size.x = imgrect.size.x * window_size.height / imgrect.size.y;
 			screenrect.position.x = (window_size.width - screenrect.size.x) / 2;
-
-		} else {
-			//scale vertically
+		} break;
+		case RenderingServer::SPLASH_STRETCH_MODE_COVER: {
+			double window_aspect = (double)window_size.width / window_size.height;
+			double img_aspect = imgrect.size.x / imgrect.size.y;
+
+			if (window_aspect > img_aspect) {
+				// Scale vertically.
+				screenrect.size.x = window_size.width;
+				screenrect.size.y = imgrect.size.y * window_size.width / imgrect.size.x;
+				screenrect.position.y = (window_size.height - screenrect.size.y) / 2;
+			} else {
+				// Scale horizontally.
+				screenrect.size.y = window_size.height;
+				screenrect.size.x = imgrect.size.x * window_size.height / imgrect.size.y;
+				screenrect.position.x = (window_size.width - screenrect.size.x) / 2;
+			}
+		} break;
+		case RenderingServer::SPLASH_STRETCH_MODE_EXPAND: {
 			screenrect.size.x = window_size.width;
-			screenrect.size.y = imgrect.size.y * window_size.width / imgrect.size.x;
-			screenrect.position.y = (window_size.height - screenrect.size.y) / 2;
-		}
-	} else {
-		screenrect = imgrect;
-		screenrect.position += ((window_size - screenrect.size) / 2.0).floor();
+			screenrect.size.y = window_size.height;
+		} break;
 	}
 
 	screenrect.position /= window_size;