WINTERMUTE: Add displayTiled function to replace repeatLastDraw

This avoids queueing many tickets for a UITiledImage, replacing
them by a single tiled ticket.

5 files changed, 74 insertions, 64 deletions

diff --git a/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp b/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp
index 37f577d202..b8e35d9724 100644
--- a/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp
+++ b/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp
@@ -55,7 +55,6 @@ BaseRenderOSystem::BaseRenderOSystem(BaseGame *inGame) : BaseRenderer(inGame) {
 	_lastFrameIter = _renderQueue.end();
 	_needsFlip = true;
 	_skipThisFrame = false;
-	_previousTicket = nullptr;
 
 	_borderLeft = _borderRight = _borderTop = _borderBottom = 0;
 	_ratioX = _ratioY = 1.0f;
@@ -265,7 +264,6 @@ void BaseRenderOSystem::drawSurface(BaseSurfaceOSystem *owner, const Graphics::S
 		ticket->_transform._rgbaMod = _colorMod;
 		ticket->_wantsDraw = true;
 		_renderQueue.push_back(ticket);
-		_previousTicket = ticket;
 		drawFromSurface(ticket);
 		return;
 	}
@@ -296,7 +294,6 @@ void BaseRenderOSystem::drawSurface(BaseSurfaceOSystem *owner, const Graphics::S
 					drawFromSurface(compareTicket);
 				} else {
 					drawFromQueuedTicket(it);
-					_previousTicket = compareTicket;
 				}
 				return;
 			}
@@ -305,57 +302,13 @@ void BaseRenderOSystem::drawSurface(BaseSurfaceOSystem *owner, const Graphics::S
 	RenderTicket *ticket = new RenderTicket(owner, surf, srcRect, dstRect, transform);
 	if (!_disableDirtyRects) {
 		drawFromTicket(ticket);
-		_previousTicket = ticket;
 	} else {
 		ticket->_wantsDraw = true;
 		_renderQueue.push_back(ticket);
-		_previousTicket = ticket;
 		drawFromSurface(ticket);
 	}
 }
 
-void BaseRenderOSystem::repeatLastDraw(int offsetX, int offsetY, int numTimesX, int numTimesY) {
-	if (_previousTicket && _lastAddedTicket != _renderQueue.end()) {
-		RenderTicket *origTicket = _previousTicket;
-
-		// Make sure drawSurface WILL start from the correct _lastAddedTicket
-		if (!_disableDirtyRects && *_lastAddedTicket != origTicket) {
-			RenderQueueIterator it;
-			RenderQueueIterator endIterator = _renderQueue.end();
-			for (it = _renderQueue.begin(); it != endIterator; ++it) {
-				if ((*it) == _previousTicket) {
-					_lastAddedTicket = it;
-					break;
-				}
-			}
-		}
-		Common::Rect srcRect(0, 0, 0, 0);
-		srcRect.setWidth(origTicket->getSrcRect()->width());
-		srcRect.setHeight(origTicket->getSrcRect()->height());
-
-		Common::Rect dstRect = origTicket->_dstRect;
-		int initLeft = dstRect.left;
-		int initRight = dstRect.right;
-
-		TransformStruct temp = TransformStruct(kDefaultZoomX, kDefaultZoomY, kDefaultAngle, kDefaultHotspotX, kDefaultHotspotY, BLEND_NORMAL, kDefaultRgbaMod, false, false, kDefaultOffsetX, kDefaultOffsetY);
-
-		for (int i = 0; i < numTimesY; i++) {
-			if (i == 0) {
-				dstRect.translate(offsetX, 0);
-			}
-			for (int j = (i == 0 ? 1 : 0); j < numTimesX; j++) {
-				drawSurface(origTicket->_owner, origTicket->getSurface(), &srcRect, &dstRect, temp); 
-				dstRect.translate(offsetX, 0);
-			}
-			dstRect.left = initLeft;
-			dstRect.right = initRight;
-			dstRect.translate(0, offsetY);
-		}
-	} else {
-		error("Repeat-draw failed (did you forget to draw something before this?)");
-	}
-}
-
 void BaseRenderOSystem::invalidateTicket(RenderTicket *renderTicket) {
 	addDirtyRect(renderTicket->_dstRect);
 	renderTicket->_isValid = false;
@@ -614,7 +567,6 @@ void BaseRenderOSystem::endSaveLoad() {
 		delete ticket;
 	}
 	_lastAddedTicket = _renderQueue.begin();
-	_previousTicket = nullptr;
 	// HACK: After a save the buffer will be drawn before the scripts get to update it,
 	// so just skip this single frame.
 	_skipThisFrame = true;
diff --git a/engines/wintermute/base/gfx/osystem/base_render_osystem.h b/engines/wintermute/base/gfx/osystem/base_render_osystem.h
index fd5d33622e..a6634d9acc 100644
--- a/engines/wintermute/base/gfx/osystem/base_render_osystem.h
+++ b/engines/wintermute/base/gfx/osystem/base_render_osystem.h
@@ -111,7 +111,6 @@ public:
 	virtual bool endSpriteBatch() override;
 	void endSaveLoad();
 	void drawSurface(BaseSurfaceOSystem *owner, const Graphics::Surface *surf, Common::Rect *srcRect, Common::Rect *dstRect, TransformStruct &transform);
-	void repeatLastDraw(int offsetX, int offsetY, int numTimesX, int numTimesY);
 	BaseSurface *createSurface() override;
 private:
 	/**
@@ -130,7 +129,6 @@ private:
 	Common::Rect *_dirtyRect;
 	Common::List<RenderTicket *> _renderQueue;
 	RenderQueueIterator _lastAddedTicket;
-	RenderTicket *_previousTicket;
 
 	bool _needsFlip;
 	uint32 _drawNum; ///< The global number of the current draw-operation.
diff --git a/engines/wintermute/base/gfx/osystem/base_surface_osystem.cpp b/engines/wintermute/base/gfx/osystem/base_surface_osystem.cpp
index e04af45dd9..67d8f3f425 100644
--- a/engines/wintermute/base/gfx/osystem/base_surface_osystem.cpp
+++ b/engines/wintermute/base/gfx/osystem/base_surface_osystem.cpp
@@ -381,6 +381,14 @@ bool BaseSurfaceOSystem::displayTransform(int x, int y, Rect32 rect, Rect32 newR
 }
 
 //////////////////////////////////////////////////////////////////////////
+bool BaseSurfaceOSystem::displayTiled(int x, int y, Rect32 rect, int numTimesX, int numTimesY) {
+	assert(numTimesX > 0 && numTimesY > 0);
+	TransformStruct transform(numTimesX, numTimesY);
+	return drawSprite(x, y, &rect, nullptr, transform);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
 bool BaseSurfaceOSystem::drawSprite(int x, int y, Rect32 *rect, Rect32 *newRect, TransformStruct transform) {
 	BaseRenderOSystem *renderer = static_cast<BaseRenderOSystem *>(_gameRef->_renderer);
 
@@ -424,8 +432,8 @@ bool BaseSurfaceOSystem::drawSprite(int x, int y, Rect32 *rect, Rect32 *newRect,
 		position.setWidth(newRect->width());
 		position.setHeight(newRect->height());
 	} else {
-		position.setWidth((int16)((float)srcRect.width() * transform._zoom.x / kDefaultZoomX));
-		position.setHeight((int16)((float)srcRect.height() * transform._zoom.y / kDefaultZoomY));
+		position.setWidth((int16)((float)srcRect.width() * transform._zoom.x / kDefaultZoomX) * transform._numTimesX);
+		position.setHeight((int16)((float)srcRect.height() * transform._zoom.y / kDefaultZoomY) * transform._numTimesY);
 	}
 	renderer->modTargetRect(&position);
 
@@ -441,12 +449,6 @@ bool BaseSurfaceOSystem::drawSprite(int x, int y, Rect32 *rect, Rect32 *newRect,
 	return STATUS_OK;
 }
 
-bool BaseSurfaceOSystem::repeatLastDisplayOp(int offsetX, int offsetY, int numTimesX, int numTimesY) {
-	BaseRenderOSystem *renderer = static_cast<BaseRenderOSystem *>(_gameRef->_renderer);
-	renderer->repeatLastDraw(offsetX, offsetY, numTimesX, numTimesY);
-	return STATUS_OK;
-}
-
 bool BaseSurfaceOSystem::putSurface(const Graphics::Surface &surface, bool hasAlpha) {
 	_loaded = true;
 	_surface->free();
diff --git a/engines/wintermute/base/gfx/osystem/base_surface_osystem.h b/engines/wintermute/base/gfx/osystem/base_surface_osystem.h
index 340a5a5ffc..67f45f66db 100644
--- a/engines/wintermute/base/gfx/osystem/base_surface_osystem.h
+++ b/engines/wintermute/base/gfx/osystem/base_surface_osystem.h
@@ -58,7 +58,7 @@ public:
 	bool display(int x, int y, Rect32 rect, TSpriteBlendMode blendMode = BLEND_NORMAL, bool mirrorX = false, bool mirrorY = false) override;
 	bool displayZoom(int x, int y, Rect32 rect, float zoomX, float zoomY, uint32 alpha = kDefaultRgbaMod, bool transparent = false, TSpriteBlendMode blendMode = BLEND_NORMAL, bool mirrorX = false, bool mirrorY = false) override;
 	bool displayTransform(int x, int y, Rect32 rect, Rect32 newRect, const TransformStruct &transform) override;
-	bool repeatLastDisplayOp(int offsetX, int offsetY, int numTimesX, int numTimesY) override;
+	virtual bool displayTiled(int x, int y, Rect32 rect, int numTimesX, int numTimesY);
 	virtual bool putSurface(const Graphics::Surface &surface, bool hasAlpha = false) override;
 	/*  static unsigned DLL_CALLCONV ReadProc(void *buffer, unsigned size, unsigned count, fi_handle handle);
 	    static int DLL_CALLCONV SeekProc(fi_handle handle, long offset, int origin);
diff --git a/engines/wintermute/base/gfx/osystem/render_ticket.cpp b/engines/wintermute/base/gfx/osystem/render_ticket.cpp
index 006dd77e18..11a4921f97 100644
--- a/engines/wintermute/base/gfx/osystem/render_ticket.cpp
+++ b/engines/wintermute/base/gfx/osystem/render_ticket.cpp
@@ -50,13 +50,19 @@ RenderTicket::RenderTicket(BaseSurfaceOSystem *owner, const Graphics::Surface *s
 			memcpy(_surface->getBasePtr(0, i), surf->getBasePtr(srcRect->left, srcRect->top + i), srcRect->width() * _surface->format.bytesPerPixel);
 		}
 		// Then scale it if necessary
+		//
+		// NB: The numTimesX/numTimesY properties don't yet mix well with
+		// scaling and rotation, but there is no need for that functionality at
+		// the moment.
 		if (_transform._angle != kDefaultAngle) {
 			TransparentSurface src(*_surface, false);
 			Graphics::Surface *temp = src.rotoscale(transform);
 			_surface->free();
 			delete _surface;
 			_surface = temp;
-		} else if (dstRect->width() != srcRect->width() || dstRect->height() != srcRect->height()) { 
+		} else if ((dstRect->width() != srcRect->width() ||
+					dstRect->height() != srcRect->height()) &&
+					_transform._numTimesX * _transform._numTimesY == 1) {
 			TransparentSurface src(*_surface, false);
 			Graphics::Surface *temp = src.scale(dstRect->width(), dstRect->height());
 			_surface->free();
@@ -109,7 +115,19 @@ void RenderTicket::drawToSurface(Graphics::Surface *_targetSurface) const {
 			src._alphaMode = _owner->getAlphaType();
 		}
 	}
-	src.blit(*_targetSurface, _dstRect.left, _dstRect.top, _transform._flip, &clipRect, _transform._rgbaMod, clipRect.width(), clipRect.height());
+
+	int y = _dstRect.top;
+	int w = _dstRect.width() / _transform._numTimesX;
+	int h = _dstRect.height() / _transform._numTimesY;
+
+	for (int ry = 0; ry < _transform._numTimesY; ++ry) {
+		int x = _dstRect.left;
+		for (int rx = 0; rx < _transform._numTimesX; ++rx) {
+			src.blit(*_targetSurface, x, y, _transform._flip, &clipRect, _transform._rgbaMod, clipRect.width(), clipRect.height());
+			x += w;
+		}
+		y += h;
+	}
 }
 
 void RenderTicket::drawToSurface(Graphics::Surface *_targetSurface, Common::Rect *dstRect, Common::Rect *clipRect) const {
@@ -118,8 +136,8 @@ void RenderTicket::drawToSurface(Graphics::Surface *_targetSurface, Common::Rect
 	if (!clipRect) {
 		doDelete = true;
 		clipRect = new Common::Rect();
-		clipRect->setWidth(getSurface()->w);
-		clipRect->setHeight(getSurface()->h);
+		clipRect->setWidth(getSurface()->w * _transform._numTimesX);
+		clipRect->setHeight(getSurface()->h * _transform._numTimesY);
 	}
 
 	if (_owner) {
@@ -129,7 +147,47 @@ void RenderTicket::drawToSurface(Graphics::Surface *_targetSurface, Common::Rect
 			src._alphaMode = _owner->getAlphaType();
 		}
 	}
-	src.blit(*_targetSurface, dstRect->left, dstRect->top, _transform._flip, clipRect, _transform._rgbaMod, clipRect->width(), clipRect->height(), _transform._blendMode);
+
+	if (_transform._numTimesX * _transform._numTimesY == 1) {
+
+		src.blit(*_targetSurface, dstRect->left, dstRect->top, _transform._flip, clipRect, _transform._rgbaMod, clipRect->width(), clipRect->height(), _transform._blendMode);
+
+	} else {
+
+		// clipRect is a subrect of the full numTimesX*numTimesY rect
+		Common::Rect subRect;
+
+		int y = 0;
+		int w = getSurface()->w;
+		int h = getSurface()->h;
+		assert(w == _dstRect.width() / _transform._numTimesX);
+		assert(h == _dstRect.height() / _transform._numTimesY);
+
+		int basex = dstRect->left - clipRect->left;
+		int basey = dstRect->top - clipRect->top;
+
+		for (int ry = 0; ry < _transform._numTimesY; ++ry) {
+			int x = 0;
+			for (int rx = 0; rx < _transform._numTimesX; ++rx) {
+
+				subRect.left = x;
+				subRect.top = y;
+				subRect.setWidth(w);
+				subRect.setHeight(w);
+
+				if (subRect.intersects(*clipRect)) {
+					subRect.clip(*clipRect);
+					subRect.translate(-x, -y);
+					src.blit(*_targetSurface, basex + x + subRect.left, basey + y + subRect.top, _transform._flip, &subRect, _transform._rgbaMod, subRect.width(), subRect.height(), _transform._blendMode);
+
+				}
+
+				x += w;
+			}
+			y += h;
+		}
+	}
+
 	if (doDelete) {
 		delete clipRect;
 	}