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https://github.com/vcmi/vcmi.git
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369 lines
11 KiB
C++
369 lines
11 KiB
C++
/*
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* RenderHandler.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "RenderHandler.h"
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#include "SDLImage.h"
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#include "ImageScaled.h"
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#include "FontChain.h"
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#include "../gui/CGuiHandler.h"
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#include "../render/CAnimation.h"
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#include "../render/CDefFile.h"
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#include "../render/Colors.h"
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#include "../render/ColorFilter.h"
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#include "../render/IScreenHandler.h"
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#include "../../lib/json/JsonUtils.h"
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#include "../../lib/filesystem/Filesystem.h"
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#include "../../lib/VCMIDirs.h"
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#include <vcmi/ArtifactService.h>
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#include <vcmi/CreatureService.h>
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#include <vcmi/Entity.h>
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#include <vcmi/FactionService.h>
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#include <vcmi/HeroTypeService.h>
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#include <vcmi/Services.h>
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#include <vcmi/SkillService.h>
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#include <vcmi/spells/Service.h>
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std::shared_ptr<CDefFile> RenderHandler::getAnimationFile(const AnimationPath & path)
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{
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AnimationPath actualPath = boost::starts_with(path.getName(), "SPRITES") ? path : path.addPrefix("SPRITES/");
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auto it = animationFiles.find(actualPath);
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if (it != animationFiles.end())
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return it->second;
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if (!CResourceHandler::get()->existsResource(actualPath))
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{
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animationFiles[actualPath] = nullptr;
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return nullptr;
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}
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auto result = std::make_shared<CDefFile>(actualPath);
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animationFiles[actualPath] = result;
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return result;
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}
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void RenderHandler::initFromJson(AnimationLayoutMap & source, const JsonNode & config)
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{
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std::string basepath;
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basepath = config["basepath"].String();
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JsonNode base;
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base["margins"] = config["margins"];
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base["width"] = config["width"];
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base["height"] = config["height"];
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for(const JsonNode & group : config["sequences"].Vector())
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{
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size_t groupID = group["group"].Integer();//TODO: string-to-value conversion("moving" -> MOVING)
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source[groupID].clear();
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for(const JsonNode & frame : group["frames"].Vector())
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{
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JsonNode toAdd = frame;
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JsonUtils::inherit(toAdd, base);
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toAdd["file"].String() = basepath + frame.String();
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source[groupID].emplace_back(toAdd);
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}
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}
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for(const JsonNode & node : config["images"].Vector())
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{
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size_t group = node["group"].Integer();
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size_t frame = node["frame"].Integer();
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if (source[group].size() <= frame)
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source[group].resize(frame+1);
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JsonNode toAdd = node;
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JsonUtils::inherit(toAdd, base);
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toAdd["file"].String() = basepath + node["file"].String();
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source[group][frame] = ImageLocator(toAdd);
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}
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}
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RenderHandler::AnimationLayoutMap & RenderHandler::getAnimationLayout(const AnimationPath & path)
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{
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AnimationPath actualPath = boost::starts_with(path.getName(), "SPRITES") ? path : path.addPrefix("SPRITES/");
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auto it = animationLayouts.find(actualPath);
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if (it != animationLayouts.end())
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return it->second;
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AnimationLayoutMap result;
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auto defFile = getAnimationFile(actualPath);
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if(defFile)
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{
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const std::map<size_t, size_t> defEntries = defFile->getEntries();
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for (const auto & defEntry : defEntries)
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result[defEntry.first].resize(defEntry.second);
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}
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auto jsonResource = actualPath.toType<EResType::JSON>();
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auto configList = CResourceHandler::get()->getResourcesWithName(jsonResource);
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for(auto & loader : configList)
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{
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auto stream = loader->load(jsonResource);
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std::unique_ptr<ui8[]> textData(new ui8[stream->getSize()]);
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stream->read(textData.get(), stream->getSize());
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const JsonNode config(reinterpret_cast<const std::byte*>(textData.get()), stream->getSize(), path.getOriginalName());
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initFromJson(result, config);
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}
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animationLayouts[actualPath] = result;
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return animationLayouts[actualPath];
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}
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int RenderHandler::getScalingFactor() const
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{
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return GH.screenHandler().getScalingFactor();
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}
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ImageLocator RenderHandler::getLocatorForAnimationFrame(const AnimationPath & path, int frame, int group)
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{
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const auto & layout = getAnimationLayout(path);
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if (!layout.count(group))
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return ImageLocator(ImagePath::builtin("DEFAULT"));
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if (frame >= layout.at(group).size())
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return ImageLocator(ImagePath::builtin("DEFAULT"));
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const auto & locator = layout.at(group).at(frame);
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if (locator.image || locator.defFile)
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return locator;
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return ImageLocator(path, frame, group);
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}
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std::shared_ptr<ISharedImage> RenderHandler::loadImageImpl(const ImageLocator & locator)
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{
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auto it = imageFiles.find(locator);
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if (it != imageFiles.end())
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return it->second;
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// TODO: order should be different:
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// 1) try to find correctly scaled image
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// 2) if fails -> try to find correctly transformed
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// 3) if also fails -> try to find image from correct file
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// 4) load missing part of the sequence
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// TODO: check whether (load -> transform -> scale) or (load -> scale -> transform) order should be used for proper loading of pre-scaled data
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auto imageFromFile = loadImageFromFile(locator.copyFile());
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auto transformedImage = transformImage(locator.copyFileTransform(), imageFromFile);
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auto scaledImage = scaleImage(locator.copyFileTransformScale(), transformedImage);
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return scaledImage;
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}
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std::shared_ptr<ISharedImage> RenderHandler::loadImageFromFileUncached(const ImageLocator & locator)
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{
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if (locator.image)
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{
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// TODO: create EmptySharedImage class that will be instantiated if image does not exists or fails to load
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return std::make_shared<SDLImageShared>(*locator.image);
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}
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if (locator.defFile)
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{
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auto defFile = getAnimationFile(*locator.defFile);
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return std::make_shared<SDLImageShared>(defFile.get(), locator.defFrame, locator.defGroup);
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}
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throw std::runtime_error("Invalid image locator received!");
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}
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void RenderHandler::storeCachedImage(const ImageLocator & locator, std::shared_ptr<ISharedImage> image)
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{
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imageFiles[locator] = image;
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#if 0
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const boost::filesystem::path outPath = VCMIDirs::get().userExtractedPath() / "imageCache" / (locator.toString() + ".png");
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boost::filesystem::path outDir = outPath;
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outDir.remove_filename();
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boost::filesystem::create_directories(outDir);
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image->exportBitmap(outPath , nullptr);
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#endif
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}
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std::shared_ptr<ISharedImage> RenderHandler::loadImageFromFile(const ImageLocator & locator)
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{
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if (imageFiles.count(locator))
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return imageFiles.at(locator);
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auto result = loadImageFromFileUncached(locator);
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storeCachedImage(locator, result);
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return result;
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}
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std::shared_ptr<ISharedImage> RenderHandler::transformImage(const ImageLocator & locator, std::shared_ptr<ISharedImage> image)
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{
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if (imageFiles.count(locator))
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return imageFiles.at(locator);
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auto result = image;
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if (locator.verticalFlip)
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result = result->verticalFlip();
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if (locator.horizontalFlip)
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result = result->horizontalFlip();
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storeCachedImage(locator, result);
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return result;
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}
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std::shared_ptr<ISharedImage> RenderHandler::scaleImage(const ImageLocator & locator, std::shared_ptr<ISharedImage> image)
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{
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if (imageFiles.count(locator))
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return imageFiles.at(locator);
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auto handle = image->createImageReference(locator.layer == EImageLayer::ALL ? EImageBlitMode::OPAQUE : EImageBlitMode::ALPHA);
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assert(locator.scalingFactor != 1); // should be filtered-out before
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handle->setBodyEnabled(locator.layer == EImageLayer::ALL || locator.layer == EImageLayer::BODY);
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if (locator.layer != EImageLayer::ALL)
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{
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handle->setOverlayEnabled(locator.layer == EImageLayer::OVERLAY);
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handle->setShadowEnabled( locator.layer == EImageLayer::SHADOW);
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}
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if (locator.layer == EImageLayer::ALL && locator.playerColored != PlayerColor::CANNOT_DETERMINE)
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handle->playerColored(locator.playerColored);
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handle->scaleInteger(locator.scalingFactor);
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// TODO: try to optimize image size (possibly even before scaling?) - trim image borders if they are completely transparent
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auto result = handle->getSharedImage();
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storeCachedImage(locator, result);
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return result;
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}
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std::shared_ptr<IImage> RenderHandler::loadImage(const ImageLocator & locator, EImageBlitMode mode)
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{
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if (locator.scalingFactor == 0 && getScalingFactor() != 1 )
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{
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auto unscaledLocator = locator;
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auto scaledLocator = locator;
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unscaledLocator.scalingFactor = 1;
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scaledLocator.scalingFactor = getScalingFactor();
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auto unscaledImage = loadImageImpl(unscaledLocator);
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return std::make_shared<ImageScaled>(scaledLocator, unscaledImage, mode);
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}
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if (locator.scalingFactor == 0)
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{
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auto scaledLocator = locator;
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scaledLocator.scalingFactor = getScalingFactor();
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return loadImageImpl(scaledLocator)->createImageReference(mode);
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}
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else
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{
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return loadImageImpl(locator)->createImageReference(mode);
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}
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}
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std::shared_ptr<IImage> RenderHandler::loadImage(const AnimationPath & path, int frame, int group, EImageBlitMode mode)
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{
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ImageLocator locator = getLocatorForAnimationFrame(path, frame, group);
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return loadImage(locator, mode);
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}
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std::shared_ptr<IImage> RenderHandler::loadImage(const ImagePath & path, EImageBlitMode mode)
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{
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ImageLocator locator(path);
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return loadImage(locator, mode);
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}
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std::shared_ptr<IImage> RenderHandler::createImage(SDL_Surface * source)
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{
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return std::make_shared<SDLImageShared>(source)->createImageReference(EImageBlitMode::ALPHA);
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}
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std::shared_ptr<CAnimation> RenderHandler::loadAnimation(const AnimationPath & path, EImageBlitMode mode)
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{
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return std::make_shared<CAnimation>(path, getAnimationLayout(path), mode);
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}
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void RenderHandler::addImageListEntries(const EntityService * service)
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{
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service->forEachBase([this](const Entity * entity, bool & stop)
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{
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entity->registerIcons([this](size_t index, size_t group, const std::string & listName, const std::string & imageName)
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{
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if (imageName.empty())
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return;
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auto & layout = getAnimationLayout(AnimationPath::builtin("SPRITES/" + listName));
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JsonNode entry;
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entry["file"].String() = imageName;
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if (index >= layout[group].size())
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layout[group].resize(index + 1);
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layout[group][index] = ImageLocator(entry);
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});
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});
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}
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void RenderHandler::onLibraryLoadingFinished(const Services * services)
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{
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addImageListEntries(services->creatures());
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addImageListEntries(services->heroTypes());
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addImageListEntries(services->artifacts());
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addImageListEntries(services->factions());
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addImageListEntries(services->spells());
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addImageListEntries(services->skills());
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}
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std::shared_ptr<const IFont> RenderHandler::loadFont(EFonts font)
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{
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if (fonts.count(font))
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return fonts.at(font);
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const int8_t index = static_cast<int8_t>(font);
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logGlobal->debug("Loading font %d", static_cast<int>(index));
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auto configList = CResourceHandler::get()->getResourcesWithName(JsonPath::builtin("config/fonts.json"));
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std::shared_ptr<FontChain> loadedFont = std::make_shared<FontChain>();
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std::string bitmapPath;
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for(auto & loader : configList)
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{
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auto stream = loader->load(JsonPath::builtin("config/fonts.json"));
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std::unique_ptr<ui8[]> textData(new ui8[stream->getSize()]);
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stream->read(textData.get(), stream->getSize());
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const JsonNode config(reinterpret_cast<const std::byte*>(textData.get()), stream->getSize(), "config/fonts.json");
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const JsonVector & bmpConf = config["bitmap"].Vector();
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const JsonNode & ttfConf = config["trueType"];
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bitmapPath = bmpConf[index].String();
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if (!ttfConf[bitmapPath].isNull())
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loadedFont->addTrueTypeFont(ttfConf[bitmapPath]);
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}
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loadedFont->addBitmapFont(bitmapPath);
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fonts[font] = loadedFont;
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return loadedFont;
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}
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