diff options
Diffstat (limited to 'engines/zvision/render_manager.cpp')
| -rw-r--r-- | engines/zvision/render_manager.cpp | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/engines/zvision/render_manager.cpp b/engines/zvision/render_manager.cpp index 7f796451f4..bd3e73563f 100644 --- a/engines/zvision/render_manager.cpp +++ b/engines/zvision/render_manager.cpp @@ -60,6 +60,10 @@ RenderManager::~RenderManager() { } void RenderManager::update(uint deltaTimeInMillis) { + // Clear the dirty rects from last frame + _workingWindowDirtyRect = Common::Rect(); + _backBufferDirtyRect = Common::Rect(); + // An inverse velocity of 0 would be infinitely fast, so we'll let 0 mean no velocity. if (_backgroundInverseVelocity != 0) { _accumulatedVelocityMilliseconds += deltaTimeInMillis; @@ -78,16 +82,25 @@ void RenderManager::update(uint deltaTimeInMillis) { } void RenderManager::renderBackbufferToScreen() { - RenderTable::RenderState state = _renderTable.getRenderState(); - if (state == RenderTable::PANORAMA || state == RenderTable::TILT) { - _renderTable.mutateImage((uint16 *)_workingWindowBuffer.getPixels(), (uint16 *)_backBuffer.getBasePtr(_workingWindow.left, _workingWindow.top), _backBuffer.w); - } else { - _backBuffer.copyRectToSurface(_workingWindowBuffer.getPixels(), _workingWindowBuffer.pitch, _workingWindow.left, _workingWindow.top, _workingWindowBuffer.w, _workingWindowBuffer.h); + if (!_workingWindowDirtyRect.isEmpty()) { + RenderTable::RenderState state = _renderTable.getRenderState(); + if (state == RenderTable::PANORAMA || state == RenderTable::TILT) { + _renderTable.mutateImage((uint16 *)_workingWindowBuffer.getPixels(), (uint16 *)_backBuffer.getBasePtr(_workingWindow.left + _workingWindowDirtyRect.left, _workingWindow.top + _workingWindowDirtyRect.top), _backBuffer.w, _workingWindowDirtyRect); + } else { + _backBuffer.copyRectToSurface(_workingWindowBuffer.getBasePtr(_workingWindowDirtyRect.left, _workingWindowDirtyRect.top), _workingWindowBuffer.pitch, _workingWindow.left + _workingWindowDirtyRect.left, _workingWindow.top + _workingWindowDirtyRect.top, _workingWindowDirtyRect.width(), _workingWindowDirtyRect.height()); + } + + // Translate the working window dirty rect to screen coords + _workingWindowDirtyRect.translate(_workingWindow.left, _workingWindow.top); + // Then extend the backbuffer dirty rect to contain it + _backBufferDirtyRect.extend(_workingWindowDirtyRect); } // TODO: Add menu rendering - _system->copyRectToScreen(_backBuffer.getPixels(), _backBuffer.pitch, 0, 0, _backBuffer.w, _backBuffer.h); + if (!_backBufferDirtyRect.isEmpty()) { + _system->copyRectToScreen(_backBuffer.getBasePtr(_backBufferDirtyRect.left, _backBufferDirtyRect.top), _backBuffer.pitch, _backBufferDirtyRect.left, _backBufferDirtyRect.top, _backBufferDirtyRect.width(), _backBufferDirtyRect.height()); + } } void RenderManager::clearWorkingWindowTo555Color(uint16 color) { @@ -274,6 +287,8 @@ void RenderManager::renderRectToWorkingWindow(uint16 *buffer, int32 imageWidth, destOffset += _workingWidth; sourceOffset += imageWidth; } + + _workingWindowDirtyRect.extend(Common::Rect(destX, destY, destX + width, destY + height)); } const Common::Point RenderManager::screenSpaceToImageSpace(const Common::Point &point) { |