From 58d83a7bb2f992194c3df304b1dcbb81f98f78c0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?D=C3=A1niel=20Juh=C3=A1sz?= Date: Fri, 10 Mar 2017 18:25:58 +0100 Subject: Hardware coloring for itemstacks Adds the possibility to colorize item stacks based on their metadata. In the item/node definition you can specify palette (an image file) and color (fallback color if the item has no palette or metadata). Then you can add palette_index to the metadata. Dropped itemstacks with different colors do not merge. --- src/client/tile.cpp | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++-- src/client/tile.h | 15 +++++++----- 2 files changed, 76 insertions(+), 8 deletions(-) (limited to 'src/client') diff --git a/src/client/tile.cpp b/src/client/tile.cpp index 86ca7d422..0aa06980c 100644 --- a/src/client/tile.cpp +++ b/src/client/tile.cpp @@ -341,6 +341,8 @@ public: */ video::ITexture* getTextureForMesh(const std::string &name, u32 *id); + virtual Palette* getPalette(const std::string &name); + // Returns a pointer to the irrlicht device virtual IrrlichtDevice* getDevice() { @@ -377,8 +379,6 @@ public: video::ITexture* generateTextureFromMesh( const TextureFromMeshParams ¶ms); - video::IImage* generateImage(const std::string &name); - video::ITexture* getNormalTexture(const std::string &name); video::SColor getTextureAverageColor(const std::string &name); video::ITexture *getShaderFlagsTexture(bool normamap_present); @@ -401,6 +401,13 @@ private: // if baseimg is NULL, it is created. Otherwise stuff is made on it. bool generateImagePart(std::string part_of_name, video::IImage *& baseimg); + /*! Generates an image from a full string like + * "stone.png^mineral_coal.png^[crack:1:0". + * Shall be called from the main thread. + * The returned Image should be dropped. + */ + video::IImage* generateImage(const std::string &name); + // Thread-safe cache of what source images are known (true = known) MutexedMap m_source_image_existence; @@ -419,6 +426,9 @@ private: // but can't be deleted because the ITexture* might still be used std::vector m_texture_trash; + // Maps image file names to loaded palettes. + UNORDERED_MAP m_palettes; + // Cached settings needed for making textures from meshes bool m_setting_trilinear_filter; bool m_setting_bilinear_filter; @@ -682,6 +692,61 @@ video::ITexture* TextureSource::getTextureForMesh(const std::string &name, u32 * return getTexture(name + "^[applyfiltersformesh", id); } +Palette* TextureSource::getPalette(const std::string &name) +{ + // Only the main thread may load images + sanity_check(thr_is_current_thread(m_main_thread)); + + if (name == "") + return NULL; + + UNORDERED_MAP::iterator it = m_palettes.find(name); + if (it == m_palettes.end()) { + // Create palette + video::IImage *img = generateImage(name); + if (!img) { + warningstream << "TextureSource::getPalette(): palette \"" << name + << "\" could not be loaded." << std::endl; + return NULL; + } + Palette new_palette; + u32 w = img->getDimension().Width; + u32 h = img->getDimension().Height; + // Real area of the image + u32 area = h * w; + if (area == 0) + return NULL; + if (area > 256) { + warningstream << "TextureSource::getPalette(): the specified" + << " palette image \"" << name << "\" is larger than 256" + << " pixels, using the first 256." << std::endl; + area = 256; + } else if (256 % area != 0) + warningstream << "TextureSource::getPalette(): the " + << "specified palette image \"" << name << "\" does not " + << "contain power of two pixels." << std::endl; + // We stretch the palette so it will fit 256 values + // This many param2 values will have the same color + u32 step = 256 / area; + // For each pixel in the image + for (u32 i = 0; i < area; i++) { + video::SColor c = img->getPixel(i % w, i / w); + // Fill in palette with 'step' colors + for (u32 j = 0; j < step; j++) + new_palette.push_back(c); + } + img->drop(); + // Fill in remaining elements + while (new_palette.size() < 256) + new_palette.push_back(video::SColor(0xFFFFFFFF)); + m_palettes[name] = new_palette; + it = m_palettes.find(name); + } + if (it != m_palettes.end()) + return &((*it).second); + return NULL; +} + void TextureSource::processQueue() { /* diff --git a/src/client/tile.h b/src/client/tile.h index d04ab918a..5eec0f2ea 100644 --- a/src/client/tile.h +++ b/src/client/tile.h @@ -33,6 +33,8 @@ class IGameDef; struct TileSpec; struct TileDef; +typedef std::vector Palette; + /* tile.{h,cpp}: Texture handling stuff. */ @@ -106,14 +108,15 @@ public: const std::string &name, u32 *id = NULL)=0; virtual video::ITexture* getTextureForMesh( const std::string &name, u32 *id = NULL) = 0; + /*! + * Returns a palette from the given texture name. + * The pointer is valid until the texture source is + * destructed. + * Should be called from the main thread. + */ + virtual Palette* getPalette(const std::string &name) = 0; virtual IrrlichtDevice* getDevice()=0; virtual bool isKnownSourceImage(const std::string &name)=0; - /*! Generates an image from a full string like - * "stone.png^mineral_coal.png^[crack:1:0". - * Shall be called from the main thread. - * The returned Image should be dropped. - */ - virtual video::IImage* generateImage(const std::string &name)=0; virtual video::ITexture* generateTextureFromMesh( const TextureFromMeshParams ¶ms)=0; virtual video::ITexture* getNormalTexture(const std::string &name)=0; -- cgit v1.2.3