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MOHAWK: Add subimage drawing/caching code

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svn-id: r55038
This commit is contained in:
Alyssa Milburn 2010-12-25 19:52:54 +00:00
parent 1897e5e132
commit 64a8652cd6
2 changed files with 32 additions and 1 deletions
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28
engines/mohawk/graphics.cpp
View File

@ -101,8 +101,14 @@ GraphicsManager::~GraphicsManager() {
void GraphicsManager::clearCache() {
for (Common::HashMap<uint16, MohawkSurface*>::iterator it = _cache.begin(); it != _cache.end(); it++)
delete it->_value;
for (Common::HashMap<uint16, Common::Array<MohawkSurface*> >::iterator it = _subImageCache.begin(); it != _subImageCache.end(); it++) {
Common::Array<MohawkSurface *> &array = it->_value;
for (uint i = 0; i < array.size(); i++)
delete array[i];
}
_cache.clear();
_subImageCache.clear();
}
MohawkSurface *GraphicsManager::findImage(uint16 id) {
@ -117,6 +123,10 @@ MohawkSurface *GraphicsManager::findImage(uint16 id) {
return _cache[id];
}
Common::Array<MohawkSurface *> GraphicsManager::decodeImages(uint16 id) {
error("decodeImages not implemented for this game");
}
void GraphicsManager::preloadImage(uint16 image) {
findImage(image);
}
@ -150,6 +160,22 @@ void GraphicsManager::copyAnimImageToScreen(uint16 image, int left, int top) {
}
void GraphicsManager::copyAnimImageSectionToScreen(uint16 image, Common::Rect srcRect, Common::Rect dstRect) {
copyAnimImageSectionToScreen(findImage(image), srcRect, dstRect);
}
void GraphicsManager::copyAnimSubImageToScreen(uint16 image, uint16 subimage, int left, int top) {
if (!_subImageCache.contains(image))
_subImageCache[image] = decodeImages(image);
Common::Array<MohawkSurface *> &images = _subImageCache[image];
Graphics::Surface *surface = images[subimage]->getSurface();
Common::Rect srcRect(0, 0, surface->w, surface->h);
Common::Rect dstRect(left, top, left + surface->w, top + surface->h);
copyAnimImageSectionToScreen(images[subimage], srcRect, dstRect);
}
void GraphicsManager::copyAnimImageSectionToScreen(MohawkSurface *image, Common::Rect srcRect, Common::Rect dstRect) {
uint16 startX = 0;
uint16 startY = 0;
@ -172,7 +198,7 @@ void GraphicsManager::copyAnimImageSectionToScreen(uint16 image, Common::Rect sr
if (dstRect.top >= getVM()->_system->getHeight())
return;
Graphics::Surface *surface = findImage(image)->getSurface();
Graphics::Surface *surface = image->getSurface();
if (startX >= surface->w)
return;
if (startY >= surface->h)

5
engines/mohawk/graphics.h
View File

@ -88,20 +88,25 @@ public:
virtual void setPalette(uint16 id);
void copyAnimImageToScreen(uint16 image, int left = 0, int top = 0);
void copyAnimImageSectionToScreen(uint16 image, Common::Rect src, Common::Rect dest);
void copyAnimSubImageToScreen(uint16 image, uint16 subimage, int left = 0, int top = 0);
protected:
void copyAnimImageSectionToScreen(MohawkSurface *image, Common::Rect src, Common::Rect dest);
// findImage will search the cache to find the image.
// If not found, it will call decodeImage to get a new one.
MohawkSurface *findImage(uint16 id);
// decodeImage will always return a new image.
virtual MohawkSurface *decodeImage(uint16 id) = 0;
virtual Common::Array<MohawkSurface *> decodeImages(uint16 id);
virtual MohawkEngine *getVM() = 0;
private:
// An image cache that stores images until clearCache() is called
Common::HashMap<uint16, MohawkSurface*> _cache;
Common::HashMap<uint16, Common::Array<MohawkSurface*> > _subImageCache;
};
class MystGraphics : public GraphicsManager {