RECORDER: Implement Events Recorder

6 files changed, 118 insertions, 4 deletions

diff --git a/graphics/cursorman.cpp b/graphics/cursorman.cpp
index c818101645..6825767dfd 100644
--- a/graphics/cursorman.cpp
+++ b/graphics/cursorman.cpp
@@ -48,6 +48,9 @@ bool CursorManager::isVisible() {
 bool CursorManager::showMouse(bool visible) {
 	if (_cursorStack.empty())
 		return false;
+	if (_locked) {
+		return false;
+	}
 
 	_cursorStack.top()->_visible = visible;
 
@@ -225,6 +228,10 @@ void CursorManager::replaceCursorPalette(const byte *colors, uint start, uint nu
 	}
 }
 
+void CursorManager::lock(bool locked) {
+	_locked = locked;
+}
+
 CursorManager::Cursor::Cursor(const void *data, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, bool dontScale, const Graphics::PixelFormat *format) {
 #ifdef USE_RGB_COLOR
 	if (!format)
diff --git a/graphics/cursorman.h b/graphics/cursorman.h
index 66e8d1ba56..b4d8ad94ce 100644
--- a/graphics/cursorman.h
+++ b/graphics/cursorman.h
@@ -160,12 +160,15 @@ public:
 	 */
 	void replaceCursorPalette(const byte *colors, uint start, uint num);
 
+	void lock(bool locked);
 private:
 	friend class Common::Singleton<SingletonBaseType>;
 	// Even though this is basically the default constructor we implement it
 	// ourselves, so it is private and thus there is no way to create this class
 	// except from the Singleton code.
-	CursorManager() {}
+	CursorManager() {
+		_locked = false;
+	}
 	~CursorManager();
 
 	struct Cursor {
@@ -198,6 +201,7 @@ private:
 	};
 	Common::Stack<Cursor *> _cursorStack;
 	Common::Stack<Palette *> _cursorPaletteStack;
+	bool _locked;
 };
 
 } // End of namespace Graphics
diff --git a/graphics/scaler.h b/graphics/scaler.h
index 1e5b796631..54d022d202 100644
--- a/graphics/scaler.h
+++ b/graphics/scaler.h
@@ -89,4 +89,10 @@ extern bool createThumbnailFromScreen(Graphics::Surface *surf);
  */
 extern bool createThumbnail(Graphics::Surface *surf, const uint8 *pixels, int w, int h, const uint8 *palette);
 
+/**
+ * Downscale screenshot to thumbnale size.
+ *
+ */
+extern bool createThumbnail(Graphics::Surface &out, Graphics::Surface &in);
+
 #endif
diff --git a/graphics/scaler/thumbnail_intern.cpp b/graphics/scaler/thumbnail_intern.cpp
index 88f3cc2077..8a98263eee 100644
--- a/graphics/scaler/thumbnail_intern.cpp
+++ b/graphics/scaler/thumbnail_intern.cpp
@@ -134,7 +134,7 @@ static bool grabScreen565(Graphics::Surface *surf) {
 	return true;
 }
 
-static bool createThumbnail(Graphics::Surface &out, Graphics::Surface &in) {
+bool createThumbnail(Graphics::Surface &out, Graphics::Surface &in) {
 	uint16 width = in.w;
 	uint16 inHeight = in.h;
 
@@ -206,7 +206,7 @@ static bool createThumbnail(Graphics::Surface &out, Graphics::Surface &in) {
 	return true;
 }
 
-bool createThumbnailFromScreen(Graphics::Surface* surf) {
+bool createThumbnailFromScreen(Graphics::Surface *surf) {
 	assert(surf);
 
 	Graphics::Surface screen;
@@ -236,3 +236,31 @@ bool createThumbnail(Graphics::Surface *surf, const uint8 *pixels, int w, int h,
 
 	return createThumbnail(*surf, screen);
 }
+
+// this is somewhat awkward, but createScreenShot should logically be in graphics,
+// but moving other functions in this file into that namespace breaks several engines
+namespace Graphics {
+bool createScreenShot(Graphics::Surface &surf) {
+	Graphics::PixelFormat screenFormat = g_system->getScreenFormat();
+	//convert surface to 2 bytes pixel format to avoid problems with palette saving and loading
+	if ((screenFormat.bytesPerPixel == 1) || (screenFormat.bytesPerPixel == 2)) {
+		return grabScreen565(&surf);
+	} else {
+		Graphics::Surface *screen = g_system->lockScreen();
+		if (!screen) {
+			return false;
+		}
+		surf.create(screen->w, screen->h, Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0));
+		for (uint y = 0; y < screen->h; ++y) {
+			for (uint x = 0; x < screen->w; ++x) {
+				byte r = 0, g = 0, b = 0, a = 0;
+				uint32 col = READ_UINT32(screen->getBasePtr(x, y));
+				screenFormat.colorToARGB(col, a, r, g, b);
+				((uint32 *)surf.pixels)[y * surf.w + x] = Graphics::ARGBToColor<Graphics::ColorMasks<8888> >(a, r, g, b);
+			}
+		}
+		g_system->unlockScreen();
+		return true;
+	}
+}
+} // End of namespace Graphics
diff --git a/graphics/thumbnail.cpp b/graphics/thumbnail.cpp
index ddb377306d..d04c218624 100644
--- a/graphics/thumbnail.cpp
+++ b/graphics/thumbnail.cpp
@@ -23,6 +23,7 @@
 #include "graphics/scaler.h"
 #include "graphics/colormasks.h"
 #include "common/endian.h"
+#include "common/algorithm.h"
 #include "common/system.h"
 #include "common/stream.h"
 #include "common/textconsole.h"
@@ -143,7 +144,6 @@ Graphics::Surface *loadThumbnail(Common::SeekableReadStream &in) {
 			assert(0);
 		}
 	}
-
 	return to;
 }
 
@@ -216,4 +216,55 @@ bool saveThumbnail(Common::WriteStream &out, const Graphics::Surface &thumb) {
 	return true;
 }
 
+
+/**
+ * Returns an array indicating which pixels of a source image horizontally or vertically get
+ * included in a scaled image
+ */
+int *scaleLine(int size, int srcSize) {
+	int scale = 100 * size / srcSize;
+	assert(scale > 0);
+	int *v = new int[size];
+	Common::fill(v, &v[size], 0);
+
+	int distCtr = 0;
+	int *destP = v;
+	for (int distIndex = 0; distIndex < srcSize; ++distIndex) {
+		distCtr += scale;
+		while (distCtr >= 100) {
+			assert(destP < &v[size]);
+			*destP++ = distIndex;
+			distCtr -= 100;
+		}
+	}
+
+	return v;
+}
+
+Graphics::Surface *scale(const Graphics::Surface &srcImage, int xSize, int ySize) {
+	Graphics::Surface *s = new Graphics::Surface();
+	s->create(xSize, ySize, srcImage.format);
+
+	int *horizUsage = scaleLine(xSize, srcImage.w);
+	int *vertUsage = scaleLine(ySize, srcImage.h);
+
+	// Loop to create scaled version
+	for (int yp = 0; yp < ySize; ++yp) {
+		const byte *srcP = (const byte *)srcImage.getBasePtr(0, vertUsage[yp]);
+		byte *destP = (byte *)s->getBasePtr(0, yp);
+
+		for (int xp = 0; xp < xSize; ++xp) {
+			const byte *tempSrcP = srcP + (horizUsage[xp] * srcImage.format.bytesPerPixel);
+			for (int byteCtr = 0; byteCtr < srcImage.format.bytesPerPixel; ++byteCtr) {
+				*destP++ = *tempSrcP++;
+			}
+		}
+	}
+
+	// Delete arrays and return surface
+	delete[] horizUsage;
+	delete[] vertUsage;
+	return s;
+}
+
 } // End of namespace Graphics
diff --git a/graphics/thumbnail.h b/graphics/thumbnail.h
index 45a0fdbf07..c857809c91 100644
--- a/graphics/thumbnail.h
+++ b/graphics/thumbnail.h
@@ -64,6 +64,24 @@ bool saveThumbnail(Common::WriteStream &out);
  */
 bool saveThumbnail(Common::WriteStream &out, const Graphics::Surface &thumb);
 
+/**
+ * Grabs framebuffer into surface
+ *
+ * @param surf	a surface
+ * @return		false if a error occurred
+ */
+bool createScreenShot(Graphics::Surface &surf);
+
+/**
+ * Scales a passed surface, creating a new surface with the result
+ * @param srcImage		Source image to scale
+ * @param xSize			New surface width
+ * @param ySize			New surface height
+ * @remarks Caller is responsible for freeing the returned surface
+ */
+Graphics::Surface *scale(const Graphics::Surface &srcImage, int xSize, int ySize);
+
+
 } // End of namespace Graphics
 
 #endif