BACKENDS: Let copyRectToScreen take a "const void *" instead of "const byte *" as buffer.

This removes the need to convert the parameter to copyRectToScreen to
"const byte *", which is commonly used in games, which use Graphics::Surface
to store their graphics data.

2 files changed, 8 insertions, 7 deletions

diff --git a/backends/platform/iphone/osys_main.h b/backends/platform/iphone/osys_main.h
index e06c7973ab..da3864e0df 100644
--- a/backends/platform/iphone/osys_main.h
+++ b/backends/platform/iphone/osys_main.h
@@ -143,7 +143,7 @@ protected:
 	virtual void grabPalette(byte *colors, uint start, uint num);
 
 public:
-	virtual void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);
+	virtual void copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h);
 	virtual void updateScreen();
 	virtual Graphics::Surface *lockScreen();
 	virtual void unlockScreen();
diff --git a/backends/platform/iphone/osys_video.mm b/backends/platform/iphone/osys_video.mm
index ddfa8f5030..387d91ff57 100644
--- a/backends/platform/iphone/osys_video.mm
+++ b/backends/platform/iphone/osys_video.mm
@@ -161,18 +161,19 @@ void OSystem_IPHONE::grabPalette(byte *colors, uint start, uint num) {
 	}
 }
 
-void OSystem_IPHONE::copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h) {
+void OSystem_IPHONE::copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h) {
 	//printf("copyRectToScreen(%p, %d, %i, %i, %i, %i)\n", buf, pitch, x, y, w, h);
 	//Clip the coordinates
+	const byte *src = (const byte *)buf;
 	if (x < 0) {
 		w += x;
-		buf -= x;
+		src -= x;
 		x = 0;
 	}
 
 	if (y < 0) {
 		h += y;
-		buf -= y * pitch;
+		src -= y * pitch;
 		y = 0;
 	}
 
@@ -193,11 +194,11 @@ void OSystem_IPHONE::copyRectToScreen(const byte *buf, int pitch, int x, int y,
 
 	byte *dst = (byte *)_framebuffer.getBasePtr(x, y);
 	if (_framebuffer.pitch == pitch && _framebuffer.w == w) {
-		memcpy(dst, buf, h * pitch);
+		memcpy(dst, src, h * pitch);
 	} else {
 		do {
-			memcpy(dst, buf, w * _framebuffer.format.bytesPerPixel);
-			buf += pitch;
+			memcpy(dst, src, w * _framebuffer.format.bytesPerPixel);
+			src += pitch;
 			dst += _framebuffer.pitch;
 		} while (--h);
 	}