diff options
Diffstat (limited to 'engines/pegasus/graphics.cpp')
| -rw-r--r-- | engines/pegasus/graphics.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/engines/pegasus/graphics.cpp b/engines/pegasus/graphics.cpp index abff3df15a..d5d6350ca3 100644 --- a/engines/pegasus/graphics.cpp +++ b/engines/pegasus/graphics.cpp @@ -35,6 +35,9 @@ namespace Pegasus { GraphicsManager::GraphicsManager(PegasusEngine *vm) : _vm(vm) { initGraphics(640, 480, true, NULL); + if (_vm->_system->getScreenFormat().bytesPerPixel == 1) + error("No true color mode available"); + // Old _pictDecoder = new Graphics::PictDecoder(_vm->_system->getScreenFormat()); @@ -45,6 +48,7 @@ GraphicsManager::GraphicsManager(PegasusEngine *vm) : _vm(vm) { _backLayer = kMinAvailableOrder; _frontLayer = kMaxAvailableOrder; _firstDisplayElement = _lastDisplayElement = 0; + _workArea.create(640, 480, _vm->_system->getScreenFormat()); } GraphicsManager::~GraphicsManager() { @@ -57,6 +61,9 @@ GraphicsManager::~GraphicsManager() { delete _cache[i].surface; } } + + // New + _workArea.free(); } Graphics::Surface *GraphicsManager::decodeImage(const Common::String &filename) { @@ -272,5 +279,35 @@ void GraphicsManager::removeDisplayElement(DisplayElement *oldElement) { oldElement->_nextElement = 0; oldElement->_elementIsDisplaying = false; } + +void GraphicsManager::updateDisplay() { + // TODO: Check for cursor move/change + + bool screenDirty = false; + + if (!_dirtyRect.isEmpty()) { + for (DisplayElement *runner = _firstDisplayElement; runner != 0; runner = runner->_nextElement) { + Common::Rect bounds; + runner->getBounds(bounds); + + // TODO: Better logic; it does a bit more work than it probably needs to + // but it should work fine for now. + if (bounds.intersects(_dirtyRect) && runner->validToDraw(_backLayer, _frontLayer)) + runner->draw(bounds); + } + + // Copy only the dirty rect to the screen + g_system->copyRectToScreen((byte *)_workArea.pixels, _workArea.pitch, _dirtyRect.left, _dirtyRect.top, _dirtyRect.width(), _dirtyRect.height()); + + // Mark the screen as dirty + screenDirty = true; + + // Clear the dirty rect + _dirtyRect = Common::Rect(); + } + + if (screenDirty) + g_system->updateScreen(); +} } // End of namespace Pegasus |