SWORD25: Prefer Surface::create taking a PixelFormat over the one taking a byte depth.

I am not 100% sure whether the surfaces all use the same format as the screen,
but a quick test showed that it still works fine. In case this is wrong please
set them up with the correct format.

3 files changed, 6 insertions, 4 deletions

diff --git a/engines/sword25/gfx/graphicengine.cpp b/engines/sword25/gfx/graphicengine.cpp
index 502d2d3b2a..8bdf2a4a6e 100644
--- a/engines/sword25/gfx/graphicengine.cpp
+++ b/engines/sword25/gfx/graphicengine.cpp
@@ -112,8 +112,10 @@ bool GraphicEngine::init(int width, int height, int bitDepth, int backbufferCoun
 	_screenRect.right = _width;
 	_screenRect.bottom = _height;
 
-	_backSurface.create(width, height, 4);
-	_frameBuffer.create(width, height, 4);
+	const Graphics::PixelFormat format = g_system->getScreenFormat();
+
+	_backSurface.create(width, height, format);
+	_frameBuffer.create(width, height, format);
 
 	// Standardmäßig ist Vsync an.
 	setVsync(true);
diff --git a/engines/sword25/gfx/image/renderedimage.cpp b/engines/sword25/gfx/image/renderedimage.cpp
index b740c0ec68..560663896f 100644
--- a/engines/sword25/gfx/image/renderedimage.cpp
+++ b/engines/sword25/gfx/image/renderedimage.cpp
@@ -409,7 +409,7 @@ void RenderedImage::copyDirectly(int posX, int posY) {
  */
 Graphics::Surface *RenderedImage::scale(const Graphics::Surface &srcImage, int xSize, int ySize) {
 	Graphics::Surface *s = new Graphics::Surface();
-	s->create(xSize, ySize, srcImage.bytesPerPixel);
+	s->create(xSize, ySize, srcImage.format);
 
 	int *horizUsage = scaleLine(xSize, srcImage.w);
 	int *vertUsage = scaleLine(ySize, srcImage.h);
diff --git a/engines/sword25/gfx/screenshot.cpp b/engines/sword25/gfx/screenshot.cpp
index 35e94976eb..e06ccb8051 100644
--- a/engines/sword25/gfx/screenshot.cpp
+++ b/engines/sword25/gfx/screenshot.cpp
@@ -134,7 +134,7 @@ Common::SeekableReadStream *Screenshot::createThumbnail(Graphics::Surface *data)
 
 	// Buffer for the output thumbnail
 	Graphics::Surface thumbnail;
-	thumbnail.create(200, 125, 4);
+	thumbnail.create(200, 125, g_system->getScreenFormat());
 
 	// Über das Zielbild iterieren und einen Pixel zur Zeit berechnen.
 	uint x, y;