diff options
Diffstat (limited to 'src/client')
| -rw-r--r-- | src/client/CMakeLists.txt | 3 | ||||
| -rw-r--r-- | src/client/tile.cpp | 1954 | ||||
| -rw-r--r-- | src/client/tile.h | 280 |
3 files changed, 2236 insertions, 1 deletions
diff --git a/src/client/CMakeLists.txt b/src/client/CMakeLists.txt index 8cd981aca..288acf14c 100644 --- a/src/client/CMakeLists.txt +++ b/src/client/CMakeLists.txt @@ -1,4 +1,5 @@ set(client_SRCS ${CMAKE_CURRENT_SOURCE_DIR}/clientlauncher.cpp + ${CMAKE_CURRENT_SOURCE_DIR}/tile.cpp PARENT_SCOPE -)
\ No newline at end of file +) diff --git a/src/client/tile.cpp b/src/client/tile.cpp new file mode 100644 index 000000000..e5d02de7c --- /dev/null +++ b/src/client/tile.cpp @@ -0,0 +1,1954 @@ +/* +Minetest +Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "tile.h" + +#include <ICameraSceneNode.h> +#include "util/string.h" +#include "util/container.h" +#include "util/thread.h" +#include "util/numeric.h" +#include "irrlichttypes_extrabloated.h" +#include "debug.h" +#include "main.h" // for g_settings +#include "filesys.h" +#include "settings.h" +#include "mesh.h" +#include "log.h" +#include "gamedef.h" +#include "strfnd.h" +#include "util/string.h" // for parseColorString() + +#ifdef __ANDROID__ +#include <GLES/gl.h> +#endif + +/* + A cache from texture name to texture path +*/ +MutexedMap<std::string, std::string> g_texturename_to_path_cache; + +/* + Replaces the filename extension. + eg: + std::string image = "a/image.png" + replace_ext(image, "jpg") + -> image = "a/image.jpg" + Returns true on success. +*/ +static bool replace_ext(std::string &path, const char *ext) +{ + if (ext == NULL) + return false; + // Find place of last dot, fail if \ or / found. + s32 last_dot_i = -1; + for (s32 i=path.size()-1; i>=0; i--) + { + if (path[i] == '.') + { + last_dot_i = i; + break; + } + + if (path[i] == '\\' || path[i] == '/') + break; + } + // If not found, return an empty string + if (last_dot_i == -1) + return false; + // Else make the new path + path = path.substr(0, last_dot_i+1) + ext; + return true; +} + +/* + Find out the full path of an image by trying different filename + extensions. + + If failed, return "". +*/ +std::string getImagePath(std::string path) +{ + // A NULL-ended list of possible image extensions + const char *extensions[] = { + "png", "jpg", "bmp", "tga", + "pcx", "ppm", "psd", "wal", "rgb", + NULL + }; + // If there is no extension, add one + if (removeStringEnd(path, extensions) == "") + path = path + ".png"; + // Check paths until something is found to exist + const char **ext = extensions; + do{ + bool r = replace_ext(path, *ext); + if (r == false) + return ""; + if (fs::PathExists(path)) + return path; + } + while((++ext) != NULL); + + return ""; +} + +/* + Gets the path to a texture by first checking if the texture exists + in texture_path and if not, using the data path. + + Checks all supported extensions by replacing the original extension. + + If not found, returns "". + + Utilizes a thread-safe cache. +*/ +std::string getTexturePath(const std::string &filename) +{ + std::string fullpath = ""; + /* + Check from cache + */ + bool incache = g_texturename_to_path_cache.get(filename, &fullpath); + if (incache) + return fullpath; + + /* + Check from texture_path + */ + std::string texture_path = g_settings->get("texture_path"); + if (texture_path != "") + { + std::string testpath = texture_path + DIR_DELIM + filename; + // Check all filename extensions. Returns "" if not found. + fullpath = getImagePath(testpath); + } + + /* + Check from default data directory + */ + if (fullpath == "") + { + std::string base_path = porting::path_share + DIR_DELIM + "textures" + + DIR_DELIM + "base" + DIR_DELIM + "pack"; + std::string testpath = base_path + DIR_DELIM + filename; + // Check all filename extensions. Returns "" if not found. + fullpath = getImagePath(testpath); + } + + // Add to cache (also an empty result is cached) + g_texturename_to_path_cache.set(filename, fullpath); + + // Finally return it + return fullpath; +} + +void clearTextureNameCache() +{ + g_texturename_to_path_cache.clear(); +} + +/* + Stores internal information about a texture. +*/ + +struct TextureInfo +{ + std::string name; + video::ITexture *texture; + + TextureInfo( + const std::string &name_, + video::ITexture *texture_=NULL + ): + name(name_), + texture(texture_) + { + } +}; + +/* + SourceImageCache: A cache used for storing source images. +*/ + +class SourceImageCache +{ +public: + ~SourceImageCache() { + for (std::map<std::string, video::IImage*>::iterator iter = m_images.begin(); + iter != m_images.end(); iter++) { + iter->second->drop(); + } + m_images.clear(); + } + void insert(const std::string &name, video::IImage *img, + bool prefer_local, video::IVideoDriver *driver) + { + assert(img); + // Remove old image + std::map<std::string, video::IImage*>::iterator n; + n = m_images.find(name); + if (n != m_images.end()){ + if (n->second) + n->second->drop(); + } + + video::IImage* toadd = img; + bool need_to_grab = true; + + // Try to use local texture instead if asked to + if (prefer_local){ + std::string path = getTexturePath(name); + if (path != ""){ + video::IImage *img2 = driver->createImageFromFile(path.c_str()); + if (img2){ + toadd = img2; + need_to_grab = false; + } + } + } + + if (need_to_grab) + toadd->grab(); + m_images[name] = toadd; + } + video::IImage* get(const std::string &name) + { + std::map<std::string, video::IImage*>::iterator n; + n = m_images.find(name); + if (n != m_images.end()) + return n->second; + return NULL; + } + // Primarily fetches from cache, secondarily tries to read from filesystem + video::IImage* getOrLoad(const std::string &name, IrrlichtDevice *device) + { + std::map<std::string, video::IImage*>::iterator n; + n = m_images.find(name); + if (n != m_images.end()){ + n->second->grab(); // Grab for caller + return n->second; + } + video::IVideoDriver* driver = device->getVideoDriver(); + std::string path = getTexturePath(name); + if (path == ""){ + infostream<<"SourceImageCache::getOrLoad(): No path found for \"" + <<name<<"\""<<std::endl; + return NULL; + } + infostream<<"SourceImageCache::getOrLoad(): Loading path \""<<path + <<"\""<<std::endl; + video::IImage *img = driver->createImageFromFile(path.c_str()); + + if (img){ + m_images[name] = img; + img->grab(); // Grab for caller + } + return img; + } +private: + std::map<std::string, video::IImage*> m_images; +}; + +/* + TextureSource +*/ + +class TextureSource : public IWritableTextureSource +{ +public: + TextureSource(IrrlichtDevice *device); + virtual ~TextureSource(); + + /* + Example case: + Now, assume a texture with the id 1 exists, and has the name + "stone.png^mineral1". + Then a random thread calls getTextureId for a texture called + "stone.png^mineral1^crack0". + ...Now, WTF should happen? Well: + - getTextureId strips off stuff recursively from the end until + the remaining part is found, or nothing is left when + something is stripped out + + But it is slow to search for textures by names and modify them + like that? + - ContentFeatures is made to contain ids for the basic plain + textures + - Crack textures can be slow by themselves, but the framework + must be fast. + + Example case #2: + - Assume a texture with the id 1 exists, and has the name + "stone.png^mineral_coal.png". + - Now getNodeTile() stumbles upon a node which uses + texture id 1, and determines that MATERIAL_FLAG_CRACK + must be applied to the tile + - MapBlockMesh::animate() finds the MATERIAL_FLAG_CRACK and + has received the current crack level 0 from the client. It + finds out the name of the texture with getTextureName(1), + appends "^crack0" to it and gets a new texture id with + getTextureId("stone.png^mineral_coal.png^crack0"). + + */ + + /* + Gets a texture id from cache or + - if main thread, generates the texture, adds to cache and returns id. + - if other thread, adds to request queue and waits for main thread. + + The id 0 points to a NULL texture. It is returned in case of error. + */ + u32 getTextureId(const std::string &name); + + // Finds out the name of a cached texture. + std::string getTextureName(u32 id); + + /* + If texture specified by the name pointed by the id doesn't + exist, create it, then return the cached texture. + + Can be called from any thread. If called from some other thread + and not found in cache, the call is queued to the main thread + for processing. + */ + video::ITexture* getTexture(u32 id); + + video::ITexture* getTexture(const std::string &name, u32 *id); + + // Returns a pointer to the irrlicht device + virtual IrrlichtDevice* getDevice() + { + return m_device; + } + + bool isKnownSourceImage(const std::string &name) + { + bool is_known = false; + bool cache_found = m_source_image_existence.get(name, &is_known); + if (cache_found) + return is_known; + // Not found in cache; find out if a local file exists + is_known = (getTexturePath(name) != ""); + m_source_image_existence.set(name, is_known); + return is_known; + } + + // Processes queued texture requests from other threads. + // Shall be called from the main thread. + void processQueue(); + + // Insert an image into the cache without touching the filesystem. + // Shall be called from the main thread. + void insertSourceImage(const std::string &name, video::IImage *img); + + // Rebuild images and textures from the current set of source images + // Shall be called from the main thread. + void rebuildImagesAndTextures(); + + // Render a mesh to a texture. + // Returns NULL if render-to-texture failed. + // Shall be called from the main thread. + video::ITexture* generateTextureFromMesh( + const TextureFromMeshParams ¶ms); + + // Generates an image from a full string like + // "stone.png^mineral_coal.png^[crack:1:0". + // Shall be called from the main thread. + video::IImage* generateImage(const std::string &name); + + video::ITexture* getNormalTexture(const std::string &name); +private: + + // The id of the thread that is allowed to use irrlicht directly + threadid_t m_main_thread; + // The irrlicht device + IrrlichtDevice *m_device; + + // Cache of source images + // This should be only accessed from the main thread + SourceImageCache m_sourcecache; + + // Generate a texture + u32 generateTexture(const std::string &name); + + // Generate image based on a string like "stone.png" or "[crack:1:0". + // if baseimg is NULL, it is created. Otherwise stuff is made on it. + bool generateImagePart(std::string part_of_name, video::IImage *& baseimg); + + // Thread-safe cache of what source images are known (true = known) + MutexedMap<std::string, bool> m_source_image_existence; + + // A texture id is index in this array. + // The first position contains a NULL texture. + std::vector<TextureInfo> m_textureinfo_cache; + // Maps a texture name to an index in the former. + std::map<std::string, u32> m_name_to_id; + // The two former containers are behind this mutex + JMutex m_textureinfo_cache_mutex; + + // Queued texture fetches (to be processed by the main thread) + RequestQueue<std::string, u32, u8, u8> m_get_texture_queue; + + // Textures that have been overwritten with other ones + // but can't be deleted because the ITexture* might still be used + std::vector<video::ITexture*> m_texture_trash; + + // Cached settings needed for making textures from meshes + bool m_setting_trilinear_filter; + bool m_setting_bilinear_filter; + bool m_setting_anisotropic_filter; +}; + +IWritableTextureSource* createTextureSource(IrrlichtDevice *device) +{ + return new TextureSource(device); +} + +TextureSource::TextureSource(IrrlichtDevice *device): + m_device(device) +{ + assert(m_device); + + m_main_thread = get_current_thread_id(); + + // Add a NULL TextureInfo as the first index, named "" + m_textureinfo_cache.push_back(TextureInfo("")); + m_name_to_id[""] = 0; + + // Cache some settings + // Note: Since this is only done once, the game must be restarted + // for these settings to take effect + m_setting_trilinear_filter = g_settings->getBool("trilinear_filter"); + m_setting_bilinear_filter = g_settings->getBool("bilinear_filter"); + m_setting_anisotropic_filter = g_settings->getBool("anisotropic_filter"); +} + +TextureSource::~TextureSource() +{ + video::IVideoDriver* driver = m_device->getVideoDriver(); + + unsigned int textures_before = driver->getTextureCount(); + + for (std::vector<TextureInfo>::iterator iter = + m_textureinfo_cache.begin(); + iter != m_textureinfo_cache.end(); iter++) + { + //cleanup texture + if (iter->texture) + driver->removeTexture(iter->texture); + } + m_textureinfo_cache.clear(); + + for (std::vector<video::ITexture*>::iterator iter = + m_texture_trash.begin(); iter != m_texture_trash.end(); + iter++) { + video::ITexture *t = *iter; + + //cleanup trashed texture + driver->removeTexture(t); + } + + infostream << "~TextureSource() "<< textures_before << "/" + << driver->getTextureCount() << std::endl; +} + +u32 TextureSource::getTextureId(const std::string &name) +{ + //infostream<<"getTextureId(): \""<<name<<"\""<<std::endl; + + { + /* + See if texture already exists + */ + JMutexAutoLock lock(m_textureinfo_cache_mutex); + std::map<std::string, u32>::iterator n; + n = m_name_to_id.find(name); + if (n != m_name_to_id.end()) + { + return n->second; + } + } + + /* + Get texture + */ + if (get_current_thread_id() == m_main_thread) + { + return generateTexture(name); + } + else + { + infostream<<"getTextureId(): Queued: name=\""<<name<<"\""<<std::endl; + + // We're gonna ask the result to be put into here + static ResultQueue<std::string, u32, u8, u8> result_queue; + + // Throw a request in + m_get_texture_queue.add(name, 0, 0, &result_queue); + + /*infostream<<"Waiting for texture from main thread, name=\"" + <<name<<"\""<<std::endl;*/ + + try + { + while(true) { + // Wait result for a second + GetResult<std::string, u32, u8, u8> + result = result_queue.pop_front(1000); + + if (result.key == name) { + return result.item; + } + } + } + catch(ItemNotFoundException &e) + { + errorstream<<"Waiting for texture " << name << " timed out."<<std::endl; + return 0; + } + } + + infostream<<"getTextureId(): Failed"<<std::endl; + + return 0; +} + +// Draw an image on top of an another one, using the alpha channel of the +// source image +static void blit_with_alpha(video::IImage *src, video::IImage *dst, + v2s32 src_pos, v2s32 dst_pos, v2u32 size); + +// Like blit_with_alpha, but only modifies destination pixels that +// are fully opaque +static void blit_with_alpha_overlay(video::IImage *src, video::IImage *dst, + v2s32 src_pos, v2s32 dst_pos, v2u32 size); + +// Like blit_with_alpha overlay, but uses an int to calculate the ratio +// and modifies any destination pixels that are not fully transparent +static void blit_with_interpolate_overlay(video::IImage *src, video::IImage *dst, + v2s32 src_pos, v2s32 dst_pos, v2u32 size, int ratio); + +// Apply a mask to an image +static void apply_mask(video::IImage *mask, video::IImage *dst, + v2s32 mask_pos, v2s32 dst_pos, v2u32 size); + +// Draw or overlay a crack +static void draw_crack(video::IImage *crack, video::IImage *dst, + bool use_overlay, s32 frame_count, s32 progression, + video::IVideoDriver *driver); + +// Brighten image +void brighten(video::IImage *image); +// Parse a transform name +u32 parseImageTransform(const std::string& s); +// Apply transform to image dimension +core::dimension2d<u32> imageTransformDimension(u32 transform, core::dimension2d<u32> dim); +// Apply transform to image data +void imageTransform(u32 transform, video::IImage *src, video::IImage *dst); + +/* + This method generates all the textures +*/ +u32 TextureSource::generateTexture(const std::string &name) +{ + //infostream << "generateTexture(): name=\"" << name << "\"" << std::endl; + + // Empty name means texture 0 + if (name == "") { + infostream<<"generateTexture(): name is empty"<<std::endl; + return 0; + } + + { + /* + See if texture already exists + */ + JMutexAutoLock lock(m_textureinfo_cache_mutex); + std::map<std::string, u32>::iterator n; + n = m_name_to_id.find(name); + if (n != m_name_to_id.end()) { + return n->second; + } + } + + /* + Calling only allowed from main thread + */ + if (get_current_thread_id() != m_main_thread) { + errorstream<<"TextureSource::generateTexture() " + "called not from main thread"<<std::endl; + return 0; + } + + video::IVideoDriver *driver = m_device->getVideoDriver(); + assert(driver); + + video::IImage *img = generateImage(name); + + video::ITexture *tex = NULL; + + if (img != NULL) { +#ifdef __ANDROID__ + img = Align2Npot2(img, driver); +#endif + // Create texture from resulting image + tex = driver->addTexture(name.c_str(), img); + img->drop(); + } + + /* + Add texture to caches (add NULL textures too) + */ + + JMutexAutoLock lock(m_textureinfo_cache_mutex); + + u32 id = m_textureinfo_cache.size(); + TextureInfo ti(name, tex); + m_textureinfo_cache.push_back(ti); + m_name_to_id[name] = id; + + return id; +} + +std::string TextureSource::getTextureName(u32 id) +{ + JMutexAutoLock lock(m_textureinfo_cache_mutex); + + if (id >= m_textureinfo_cache.size()) + { + errorstream<<"TextureSource::getTextureName(): id="<<id + <<" >= m_textureinfo_cache.size()=" + <<m_textureinfo_cache.size()<<std::endl; + return ""; + } + + return m_textureinfo_cache[id].name; +} + +video::ITexture* TextureSource::getTexture(u32 id) +{ + JMutexAutoLock lock(m_textureinfo_cache_mutex); + + if (id >= m_textureinfo_cache.size()) + return NULL; + + return m_textureinfo_cache[id].texture; +} + +video::ITexture* TextureSource::getTexture(const std::string &name, u32 *id) +{ + u32 actual_id = getTextureId(name); + if (id){ + *id = actual_id; + } + return getTexture(actual_id); +} + +void TextureSource::processQueue() +{ + /* + Fetch textures + */ + //NOTE this is only thread safe for ONE consumer thread! + if (!m_get_texture_queue.empty()) + { + GetRequest<std::string, u32, u8, u8> + request = m_get_texture_queue.pop(); + + /*infostream<<"TextureSource::processQueue(): " + <<"got texture request with " + <<"name=\""<<request.key<<"\"" + <<std::endl;*/ + + m_get_texture_queue.pushResult(request, generateTexture(request.key)); + } +} + +void TextureSource::insertSourceImage(const std::string &name, video::IImage *img) +{ + //infostream<<"TextureSource::insertSourceImage(): name="<<name<<std::endl; + + assert(get_current_thread_id() == m_main_thread); + + m_sourcecache.insert(name, img, true, m_device->getVideoDriver()); + m_source_image_existence.set(name, true); +} + +void TextureSource::rebuildImagesAndTextures() +{ + JMutexAutoLock lock(m_textureinfo_cache_mutex); + + video::IVideoDriver* driver = m_device->getVideoDriver(); + assert(driver != 0); + + // Recreate textures + for (u32 i=0; i<m_textureinfo_cache.size(); i++){ + TextureInfo *ti = &m_textureinfo_cache[i]; + video::IImage *img = generateImage(ti->name); +#ifdef __ANDROID__ + img = Align2Npot2(img, driver); + assert(img->getDimension().Height == npot2(img->getDimension().Height)); + assert(img->getDimension().Width == npot2(img->getDimension().Width)); +#endif + // Create texture from resulting image + video::ITexture *t = NULL; + if (img) { + t = driver->addTexture(ti->name.c_str(), img); + img->drop(); + } + video::ITexture *t_old = ti->texture; + // Replace texture + ti->texture = t; + + if (t_old) + m_texture_trash.push_back(t_old); + } +} + +video::ITexture* TextureSource::generateTextureFromMesh( + const TextureFromMeshParams ¶ms) +{ + video::IVideoDriver *driver = m_device->getVideoDriver(); + assert(driver); + +#ifdef __ANDROID__ + const GLubyte* renderstr = glGetString(GL_RENDERER); + std::string renderer((char*) renderstr); + + // use no render to texture hack + if ( + (renderer.find("Adreno") != std::string::npos) || + (renderer.find("Mali") != std::string::npos) || + (renderer.find("Immersion") != std::string::npos) || + (renderer.find("Tegra") != std::string::npos) || + g_settings->getBool("inventory_image_hack") + ) { + // Get a scene manager + scene::ISceneManager *smgr_main = m_device->getSceneManager(); + assert(smgr_main); + scene::ISceneManager *smgr = smgr_main->createNewSceneManager(); + assert(smgr); + + const float scaling = 0.2; + + scene::IMeshSceneNode* meshnode = + smgr->addMeshSceneNode(params.mesh, NULL, + -1, v3f(0,0,0), v3f(0,0,0), + v3f(1.0 * scaling,1.0 * scaling,1.0 * scaling), true); + meshnode->setMaterialFlag(video::EMF_LIGHTING, true); + meshnode->setMaterialFlag(video::EMF_ANTI_ALIASING, true); + meshnode->setMaterialFlag(video::EMF_TRILINEAR_FILTER, m_setting_trilinear_filter); + meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, m_setting_bilinear_filter); + meshnode->setMaterialFlag(video::EMF_ANISOTROPIC_FILTER, m_setting_anisotropic_filter); + + scene::ICameraSceneNode* camera = smgr->addCameraSceneNode(0, + params.camera_position, params.camera_lookat); + // second parameter of setProjectionMatrix (isOrthogonal) is ignored + camera->setProjectionMatrix(params.camera_projection_matrix, false); + + smgr->setAmbientLight(params.ambient_light); + smgr->addLightSceneNode(0, + params.light_position, + params.light_color, + params.light_radius*scaling); + + core::dimension2d<u32> screen = driver->getScreenSize(); + + // Render scene + driver->beginScene(true, true, video::SColor(0,0,0,0)); + driver->clearZBuffer(); + smgr->drawAll(); + + core::dimension2d<u32> partsize(screen.Width * scaling,screen.Height * scaling); + + irr::video::IImage* rawImage = + driver->createImage(irr::video::ECF_A8R8G8B8, partsize); + + u8* pixels = static_cast<u8*>(rawImage->lock()); + if (!pixels) + { + rawImage->drop(); + return NULL; + } + + core::rect<s32> source( + screen.Width /2 - (screen.Width * (scaling / 2)), + screen.Height/2 - (screen.Height * (scaling / 2)), + screen.Width /2 + (screen.Width * (scaling / 2)), + screen.Height/2 + (screen.Height * (scaling / 2)) + ); + + glReadPixels(source.UpperLeftCorner.X, source.UpperLeftCorner.Y, + partsize.Width, partsize.Height, GL_RGBA, + GL_UNSIGNED_BYTE, pixels); + + driver->endScene(); + + // Drop scene manager + smgr->drop(); + + unsigned int pixelcount = partsize.Width*partsize.Height; + + u8* runptr = pixels; + for (unsigned int i=0; i < pixelcount; i++) { + + u8 B = *runptr; + u8 G = *(runptr+1); + u8 R = *(runptr+2); + u8 A = *(runptr+3); + + //BGRA -> RGBA + *runptr = R; + runptr ++; + *runptr = G; + runptr ++; + *runptr = B; + runptr ++; + *runptr = A; + runptr ++; + } + + video::IImage* inventory_image = + driver->createImage(irr::video::ECF_A8R8G8B8, params.dim); + + rawImage->copyToScaling(inventory_image); + rawImage->drop(); + + video::ITexture *rtt = driver->addTexture(params.rtt_texture_name.c_str(), inventory_image); + inventory_image->drop(); + + if (rtt == NULL) { + errorstream << "TextureSource::generateTextureFromMesh(): failed to recreate texture from image: " << params.rtt_texture_name << std::endl; + return NULL; + } + + driver->makeColorKeyTexture(rtt, v2s32(0,0)); + + if (params.delete_texture_on_shutdown) + m_texture_trash.push_back(rtt); + + return rtt; + } +#endif + + if (driver->queryFeature(video::EVDF_RENDER_TO_TARGET) == false) + { + static bool warned = false; + if (!warned) + { + errorstream<<"TextureSource::generateTextureFromMesh(): " + <<"EVDF_RENDER_TO_TARGET not supported."<<std::endl; + warned = true; + } + return NULL; + } + + // Create render target texture + video::ITexture *rtt = driver->addRenderTargetTexture( + params.dim, params.rtt_texture_name.c_str(), + video::ECF_A8R8G8B8); + if (rtt == NULL) + { + errorstream<<"TextureSource::generateTextureFromMesh(): " + <<"addRenderTargetTexture returned NULL."<<std::endl; + return NULL; + } + + // Set render target + if (!driver->setRenderTarget(rtt, false, true, video::SColor(0,0,0,0))) { + driver->removeTexture(rtt); + errorstream<<"TextureSource::generateTextureFromMesh(): " + <<"failed to set render target"<<std::endl; + return NULL; + } + + // Get a scene manager + scene::ISceneManager *smgr_main = m_device->getSceneManager(); + assert(smgr_main); + scene::ISceneManager *smgr = smgr_main->createNewSceneManager(); + assert(smgr); + + scene::IMeshSceneNode* meshnode = + smgr->addMeshSceneNode(params.mesh, NULL, + -1, v3f(0,0,0), v3f(0,0,0), v3f(1,1,1), true); + meshnode->setMaterialFlag(video::EMF_LIGHTING, true); + meshnode->setMaterialFlag(video::EMF_ANTI_ALIASING, true); + meshnode->setMaterialFlag(video::EMF_TRILINEAR_FILTER, m_setting_trilinear_filter); + meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, m_setting_bilinear_filter); + meshnode->setMaterialFlag(video::EMF_ANISOTROPIC_FILTER, m_setting_anisotropic_filter); + + scene::ICameraSceneNode* camera = smgr->addCameraSceneNode(0, + params.camera_position, params.camera_lookat); + // second parameter of setProjectionMatrix (isOrthogonal) is ignored + camera->setProjectionMatrix(params.camera_projection_matrix, false); + + smgr->setAmbientLight(params.ambient_light); + smgr->addLightSceneNode(0, + params.light_position, + params.light_color, + params.light_radius); + + // Render scene + driver->beginScene(true, true, video::SColor(0,0,0,0)); + smgr->drawAll(); + driver->endScene(); + + // Drop scene manager + smgr->drop(); + + // Unset render target + driver->setRenderTarget(0, false, true, 0); + + if (params.delete_texture_on_shutdown) + m_texture_trash.push_back(rtt); + + return rtt; +} + +video::IImage* TextureSource::generateImage(const std::string &name) +{ + /* + Get the base image + */ + + const char separator = '^'; + const char paren_open = '('; + const char paren_close = ')'; + + // Find last separator in the name + s32 last_separator_pos = -1; + u8 paren_bal = 0; + for (s32 i = name.size() - 1; i >= 0; i--) { + switch(name[i]) { + case separator: + if (paren_bal == 0) { + last_separator_pos = i; + i = -1; // break out of loop + } + break; + case paren_open: + if (paren_bal == 0) { + errorstream << "generateImage(): unbalanced parentheses" + << "(extranous '(') while generating texture \"" + << name << "\"" << std::endl; + return NULL; + } + paren_bal--; + break; + case paren_close: + paren_bal++; + break; + default: + break; + } + } + if (paren_bal > 0) { + errorstream << "generateImage(): unbalanced parentheses" + << "(missing matching '(') while generating texture \"" + << name << "\"" << std::endl; + return NULL; + } + + + video::IImage *baseimg = NULL; + + /* + If separator was found, make the base image + using a recursive call. + */ + if (last_separator_pos != -1) { + baseimg = generateImage(name.substr(0, last_separator_pos)); + } + + + video::IVideoDriver* driver = m_device->getVideoDriver(); + assert(driver); + + /* + Parse out the last part of the name of the image and act + according to it + */ + + std::string last_part_of_name = name.substr(last_separator_pos + 1); + + /* + If this name is enclosed in parentheses, generate it + and blit it onto the base image + */ + if (last_part_of_name[0] == paren_open + && last_part_of_name[last_part_of_name.size() - 1] == paren_close) { + std::string name2 = last_part_of_name.substr(1, + last_part_of_name.size() - 2); + video::IImage *tmp = generateImage(name2); + if (!tmp) { + errorstream << "generateImage(): " + "Failed to generate \"" << name2 << "\"" + << std::endl; + return NULL; + } + core::dimension2d<u32> dim = tmp->getDimension(); + if (!baseimg) + baseimg = driver->createImage(video::ECF_A8R8G8B8, dim); + blit_with_alpha(tmp, baseimg, v2s32(0, 0), v2s32(0, 0), dim); + tmp->drop(); + } else if (!generateImagePart(last_part_of_name, baseimg)) { + // Generate image according to part of name + errorstream << "generateImage(): " + "Failed to generate \"" << last_part_of_name << "\"" + << std::endl; + } + + // If no resulting image, print a warning + if (baseimg == NULL) { + errorstream << "generateImage(): baseimg is NULL (attempted to" + " create texture \"" << name << "\")" << std::endl; + } + + return baseimg; +} + +#ifdef __ANDROID__ +#include <GLES/gl.h> +/** + * Check and align image to npot2 if required by hardware + * @param image image to check for npot2 alignment + * @param driver driver to use for image operations + * @return image or copy of image aligned to npot2 + */ +video::IImage * Align2Npot2(video::IImage * image, + video::IVideoDriver* driver) +{ + if (image == NULL) { + return image; + } + + core::dimension2d<u32> dim = image->getDimension(); + + std::string extensions = (char*) glGetString(GL_EXTENSIONS); + if (extensions.find("GL_OES_texture_npot") != std::string::npos) { + return image; + } + + unsigned int height = npot2(dim.Height); + unsigned int width = npot2(dim.Width); + + if ((dim.Height == height) && + (dim.Width == width)) { + return image; + } + + if (dim.Height > height) { + height *= 2; + } + + if (dim.Width > width) { + width *= 2; + } + + video::IImage *targetimage = + driver->createImage(video::ECF_A8R8G8B8, + core::dimension2d<u32>(width, height)); + + if (targetimage != NULL) { + image->copyToScaling(targetimage); + } + image->drop(); + return targetimage; +} + +#endif + +bool TextureSource::generateImagePart(std::string part_of_name, + video::IImage *& baseimg) +{ + video::IVideoDriver* driver = m_device->getVideoDriver(); + assert(driver); + + // Stuff starting with [ are special commands + if (part_of_name.size() == 0 || part_of_name[0] != '[') + { + video::IImage *image = m_sourcecache.getOrLoad(part_of_name, m_device); +#ifdef __ANDROID__ + image = Align2Npot2(image, driver); +#endif + if (image == NULL) { + if (part_of_name != "") { + if (part_of_name.find("_normal.png") == std::string::npos){ + errorstream<<"generateImage(): Could not load image \"" + <<part_of_name<<"\""<<" while building texture"<<std::endl; + errorstream<<"generateImage(): Creating a dummy" + <<" image for \""<<part_of_name<<"\""<<std::endl; + } else { + infostream<<"generateImage(): Could not load normal map \"" + <<part_of_name<<"\""<<std::endl; + infostream<<"generateImage(): Creating a dummy" + <<" normal map for \""<<part_of_name<<"\""<<std::endl; + } + } + + // Just create a dummy image + //core::dimension2d<u32> dim(2,2); + core::dimension2d<u32> dim(1,1); + image = driver->createImage(video::ECF_A8R8G8B8, dim); + assert(image); + /*image->setPixel(0,0, video::SColor(255,255,0,0)); + image->setPixel(1,0, video::SColor(255,0,255,0)); + image->setPixel(0,1, video::SColor(255,0,0,255)); + image->setPixel(1,1, video::SColor(255,255,0,255));*/ + image->setPixel(0,0, video::SColor(255,myrand()%256, + myrand()%256,myrand()%256)); + /*image->setPixel(1,0, video::SColor(255,myrand()%256, + myrand()%256,myrand()%256)); + image->setPixel(0,1, video::SColor(255,myrand()%256, + myrand()%256,myrand()%256)); + image->setPixel(1,1, video::SColor(255,myrand()%256, + myrand()%256,myrand()%256));*/ + } + + // If base image is NULL, load as base. + if (baseimg == NULL) + { + //infostream<<"Setting "<<part_of_name<<" as base"<<std::endl; + /* + Copy it this way to get an alpha channel. + Otherwise images with alpha cannot be blitted on + images that don't have alpha in the original file. + */ + core::dimension2d<u32> dim = image->getDimension(); + baseimg = driver->createImage(video::ECF_A8R8G8B8, dim); + image->copyTo(baseimg); + } + // Else blit on base. + else + { + //infostream<<"Blitting "<<part_of_name<<" on base"<<std::endl; + // Size of the copied area + core::dimension2d<u32> dim = image->getDimension(); + //core::dimension2d<u32> dim(16,16); + // Position to copy the blitted to in the base image + core::position2d<s32> pos_to(0,0); + // Position to copy the blitted from in the blitted image + core::position2d<s32> pos_from(0,0); + // Blit + /*image->copyToWithAlpha(baseimg, pos_to, + core::rect<s32>(pos_from, dim), + video::SColor(255,255,255,255), + NULL);*/ + blit_with_alpha(image, baseimg, pos_from, pos_to, dim); + } + //cleanup + image->drop(); + } + else + { + // A special texture modification + + /*infostream<<"generateImage(): generating special " + <<"modification \""<<part_of_name<<"\"" + <<std::endl;*/ + + /* + [crack:N:P + [cracko:N:P + Adds a cracking texture + N = animation frame count, P = crack progression + */ + if (part_of_name.substr(0,6) == "[crack") + { + if (baseimg == NULL) { + errorstream<<"generateImagePart(): baseimg == NULL " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + // Crack image number and overlay option + bool use_overlay = (part_of_name[6] == 'o'); + Strfnd sf(part_of_name); + sf.next(":"); + s32 frame_count = stoi(sf.next(":")); + s32 progression = stoi(sf.next(":")); + + /* + Load crack image. + + It is an image with a number of cracking stages + horizontally tiled. + */ + video::IImage *img_crack = m_sourcecache.getOrLoad( + "crack_anylength.png", m_device); + + if (img_crack && progression >= 0) + { + draw_crack(img_crack, baseimg, + use_overlay, frame_count, + progression, driver); + img_crack->drop(); + } + } + /* + [combine:WxH:X,Y=filename:X,Y=filename2 + Creates a bigger texture from an amount of smaller ones + */ + else if (part_of_name.substr(0,8) == "[combine") + { + Strfnd sf(part_of_name); + sf.next(":"); + u32 w0 = stoi(sf.next("x")); + u32 h0 = stoi(sf.next(":")); + //infostream<<"combined w="<<w0<<" h="<<h0<<std::endl; + core::dimension2d<u32> dim(w0,h0); + if (baseimg == NULL) { + baseimg = driver->createImage(video::ECF_A8R8G8B8, dim); + baseimg->fill(video::SColor(0,0,0,0)); + } + while (sf.atend() == false) { + u32 x = stoi(sf.next(",")); + u32 y = stoi(sf.next("=")); + std::string filename = sf.next(":"); + infostream<<"Adding \""<<filename + <<"\" to combined ("<<x<<","<<y<<")" + <<std::endl; + video::IImage *img = m_sourcecache.getOrLoad(filename, m_device); + if (img) { + core::dimension2d<u32> dim = img->getDimension(); + infostream<<"Size "<<dim.Width + <<"x"<<dim.Height<<std::endl; + core::position2d<s32> pos_base(x, y); + video::IImage *img2 = + driver->createImage(video::ECF_A8R8G8B8, dim); + img->copyTo(img2); + img->drop(); + /*img2->copyToWithAlpha(baseimg, pos_base, + core::rect<s32>(v2s32(0,0), dim), + video::SColor(255,255,255,255), + NULL);*/ + blit_with_alpha(img2, baseimg, v2s32(0,0), pos_base, dim); + img2->drop(); + } else { + errorstream << "generateImagePart(): Failed to load image \"" + << filename << "\" for [combine" << std::endl; + } + } + } + /* + "[brighten" + */ + else if (part_of_name.substr(0,9) == "[brighten") + { + if (baseimg == NULL) { + errorstream<<"generateImagePart(): baseimg==NULL " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + brighten(baseimg); + } + /* + "[noalpha" + Make image completely opaque. + Used for the leaves texture when in old leaves mode, so + that the transparent parts don't look completely black + when simple alpha channel is used for rendering. + */ + else if (part_of_name.substr(0,8) == "[noalpha") + { + if (baseimg == NULL){ + errorstream<<"generateImagePart(): baseimg==NULL " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + core::dimension2d<u32> dim = baseimg->getDimension(); + + // Set alpha to full + for (u32 y=0; y<dim.Height; y++) + for (u32 x=0; x<dim.Width; x++) + { + video::SColor c = baseimg->getPixel(x,y); + c.setAlpha(255); + baseimg->setPixel(x,y,c); + } + } + /* + "[makealpha:R,G,B" + Convert one color to transparent. + */ + else if (part_of_name.substr(0,11) == "[makealpha:") + { + if (baseimg == NULL) { + errorstream<<"generateImagePart(): baseimg == NULL " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + Strfnd sf(part_of_name.substr(11)); + u32 r1 = stoi(sf.next(",")); + u32 g1 = stoi(sf.next(",")); + u32 b1 = stoi(sf.next("")); + std::string filename = sf.next(""); + + core::dimension2d<u32> dim = baseimg->getDimension(); + + /*video::IImage *oldbaseimg = baseimg; + baseimg = driver->createImage(video::ECF_A8R8G8B8, dim); + oldbaseimg->copyTo(baseimg); + oldbaseimg->drop();*/ + + // Set alpha to full + for (u32 y=0; y<dim.Height; y++) + for (u32 x=0; x<dim.Width; x++) + { + video::SColor c = baseimg->getPixel(x,y); + u32 r = c.getRed(); + u32 g = c.getGreen(); + u32 b = c.getBlue(); + if (!(r == r1 && g == g1 && b == b1)) + continue; + c.setAlpha(0); + baseimg->setPixel(x,y,c); + } + } + /* + "[transformN" + Rotates and/or flips the image. + + N can be a number (between 0 and 7) or a transform name. + Rotations are counter-clockwise. + 0 I identity + 1 R90 rotate by 90 degrees + 2 R180 rotate by 180 degrees + 3 R270 rotate by 270 degrees + 4 FX flip X + 5 FXR90 flip X then rotate by 90 degrees + 6 FY flip Y + 7 FYR90 flip Y then rotate by 90 degrees + + Note: Transform names can be concatenated to produce + their product (applies the first then the second). + The resulting transform will be equivalent to one of the + eight existing ones, though (see: dihedral group). + */ + else if (part_of_name.substr(0,10) == "[transform") + { + if (baseimg == NULL) { + errorstream<<"generateImagePart(): baseimg == NULL " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + u32 transform = parseImageTransform(part_of_name.substr(10)); + core::dimension2d<u32> dim = imageTransformDimension( + transform, baseimg->getDimension()); + video::IImage *image = driver->createImage( + baseimg->getColorFormat(), dim); + assert(image); + imageTransform(transform, baseimg, image); + baseimg->drop(); + baseimg = image; + } + /* + [inventorycube{topimage{leftimage{rightimage + In every subimage, replace ^ with &. + Create an "inventory cube". + NOTE: This should be used only on its own. + Example (a grass block (not actually used in game): + "[inventorycube{grass.png{mud.png&grass_side.png{mud.png&grass_side.png" + */ + else if (part_of_name.substr(0,14) == "[inventorycube") + { + if (baseimg != NULL){ + errorstream<<"generateImagePart(): baseimg != NULL " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + str_replace(part_of_name, '&', '^'); + Strfnd sf(part_of_name); + sf.next("{"); + std::string imagename_top = sf.next("{"); + std::string imagename_left = sf.next("{"); + std::string imagename_right = sf.next("{"); + + // Generate images for the faces of the cube + video::IImage *img_top = generateImage(imagename_top); + video::IImage *img_left = generateImage(imagename_left); + video::IImage *img_right = generateImage(imagename_right); + + if (img_top == NULL || img_left == NULL || img_right == NULL) { + errorstream << "generateImagePart(): Failed to create textures" + << " for inventorycube \"" << part_of_name << "\"" + << std::endl; + baseimg = generateImage(imagename_top); + return true; + } + +#ifdef __ANDROID__ + assert(img_top->getDimension().Height == npot2(img_top->getDimension().Height)); + assert(img_top->getDimension().Width == npot2(img_top->getDimension().Width)); + + assert(img_left->getDimension().Height == npot2(img_left->getDimension().Height)); + assert(img_left->getDimension().Width == npot2(img_left->getDimension().Width)); + + assert(img_right->getDimension().Height == npot2(img_right->getDimension().Height)); + assert(img_right->getDimension().Width == npot2(img_right->getDimension().Width)); +#endif + + // Create textures from images + video::ITexture *texture_top = driver->addTexture( + (imagename_top + "__temp__").c_str(), img_top); + video::ITexture *texture_left = driver->addTexture( + (imagename_left + "__temp__").c_str(), img_left); + video::ITexture *texture_right = driver->addTexture( + (imagename_right + "__temp__").c_str(), img_right); + assert(texture_top && texture_left && texture_right); + + // Drop images + img_top->drop(); + img_left->drop(); + img_right->drop(); + + /* + Draw a cube mesh into a render target texture + */ + scene::IMesh* cube = createCubeMesh(v3f(1, 1, 1)); + setMeshColor(cube, video::SColor(255, 255, 255, 255)); + cube->getMeshBuffer(0)->getMaterial().setTexture(0, texture_top); + cube->getMeshBuffer(1)->getMaterial().setTexture(0, texture_top); + cube->getMeshBuffer(2)->getMaterial().setTexture(0, texture_right); + cube->getMeshBuffer(3)->getMaterial().setTexture(0, texture_right); + cube->getMeshBuffer(4)->getMaterial().setTexture(0, texture_left); + cube->getMeshBuffer(5)->getMaterial().setTexture(0, texture_left); + + TextureFromMeshParams params; + params.mesh = cube; + params.dim.set(64, 64); + params.rtt_texture_name = part_of_name + "_RTT"; + // We will delete the rtt texture ourselves + params.delete_texture_on_shutdown = false; + params.camera_position.set(0, 1.0, -1.5); + params.camera_position.rotateXZBy(45); + params.camera_lookat.set(0, 0, 0); + // Set orthogonal projection + params.camera_projection_matrix.buildProjectionMatrixOrthoLH( + 1.65, 1.65, 0, 100); + + params.ambient_light.set(1.0, 0.2, 0.2, 0.2); + params.light_position.set(10, 100, -50); + params.light_color.set(1.0, 0.5, 0.5, 0.5); + params.light_radius = 1000; + + video::ITexture *rtt = generateTextureFromMesh(params); + + // Drop mesh + cube->drop(); + + // Free textures + driver->removeTexture(texture_top); + driver->removeTexture(texture_left); + driver->removeTexture(texture_right); + + if (rtt == NULL) { + baseimg = generateImage(imagename_top); + return true; + } + + // Create image of render target + video::IImage *image = driver->createImage(rtt, v2s32(0, 0), params.dim); + assert(image); + + // Cleanup texture + driver->removeTexture(rtt); + + baseimg = driver->createImage(video::ECF_A8R8G8B8, params.dim); + + if (image) { + image->copyTo(baseimg); + image->drop(); + } + } + /* + [lowpart:percent:filename + Adds the lower part of a texture + */ + else if (part_of_name.substr(0,9) == "[lowpart:") + { + Strfnd sf(part_of_name); + sf.next(":"); + u32 percent = stoi(sf.next(":")); + std::string filename = sf.next(":"); + //infostream<<"power part "<<percent<<"%% of "<<filename<<std::endl; + + if (baseimg == NULL) + baseimg = driver->createImage(video::ECF_A8R8G8B8, v2u32(16,16)); + video::IImage *img = m_sourcecache.getOrLoad(filename, m_device); + if (img) + { + core::dimension2d<u32> dim = img->getDimension(); + core::position2d<s32> pos_base(0, 0); + video::IImage *img2 = + driver->createImage(video::ECF_A8R8G8B8, dim); + img->copyTo(img2); + img->drop(); + core::position2d<s32> clippos(0, 0); + clippos.Y = dim.Height * (100-percent) / 100; + core::dimension2d<u32> clipdim = dim; + clipdim.Height = clipdim.Height * percent / 100 + 1; + core::rect<s32> cliprect(clippos, clipdim); + img2->copyToWithAlpha(baseimg, pos_base, + core::rect<s32>(v2s32(0,0), dim), + video::SColor(255,255,255,255), + &cliprect); + img2->drop(); + } + } + /* + [verticalframe:N:I + Crops a frame of a vertical animation. + N = frame count, I = frame index + */ + else if (part_of_name.substr(0,15) == "[verticalframe:") + { + Strfnd sf(part_of_name); + sf.next(":"); + u32 frame_count = stoi(sf.next(":")); + u32 frame_index = stoi(sf.next(":")); + + if (baseimg == NULL){ + errorstream<<"generateImagePart(): baseimg != NULL " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + v2u32 frame_size = baseimg->getDimension(); + frame_size.Y /= frame_count; + + video::IImage *img = driver->createImage(video::ECF_A8R8G8B8, + frame_size); + if (!img){ + errorstream<<"generateImagePart(): Could not create image " + <<"for part_of_name=\""<<part_of_name + <<"\", cancelling."<<std::endl; + return false; + } + + // Fill target image with transparency + img->fill(video::SColor(0,0,0,0)); + + core::dimension2d<u32> dim = frame_size; + core::position2d<s32> pos_dst(0, 0); + core::position2d<s32> pos_src(0, frame_index * frame_size.Y); + baseimg->copyToWithAlpha(img, pos_dst, + core::rect<s32>(pos_src, dim), + video::SColor(255,255,255,255), + NULL); + // Replace baseimg + baseimg->drop(); + baseimg = img; + } + /* + [mask:filename + Applies a mask to an image + */ + else if (part_of_name.substr(0,6) == "[mask:") + { + if (baseimg == NULL) { + errorstream << "generateImage(): baseimg == NULL " + << "for part_of_name=\"" << part_of_name + << "\", cancelling." << std::endl; + return false; + } + Strfnd sf(part_of_name); + sf.next(":"); + std::string filename = sf.next(":"); + + video::IImage *img = m_sourcecache.getOrLoad(filename, m_device); + if (img) { + apply_mask(img, baseimg, v2s32(0, 0), v2s32(0, 0), + img->getDimension()); + } else { + errorstream << "generateImage(): Failed to load \"" + << filename << "\"."; + } + } + /* + [colorize:color + Overlays image with given color + color = color as ColorString + */ + else if (part_of_name.substr(0,10) == "[colorize:") { + Strfnd sf(part_of_name); + sf.next(":"); + std::string color_str = sf.next(":"); + std::string ratio_str = sf.next(":"); + + if (baseimg == NULL) { + errorstream << "generateImagePart(): baseimg != NULL " + << "for part_of_name=\"" << part_of_name + << "\", cancelling." << std::endl; + return false; + } + + video::SColor color; + int ratio = -1; + + if (!parseColorString(color_str, color, false)) + return false; + + if (is_number(ratio_str)) + ratio = mystoi(ratio_str, 0, 255); + + core::dimension2d<u32> dim = baseimg->getDimension(); + video::IImage *img = driver->createImage(video::ECF_A8R8G8B8, dim); + + if (!img) { + errorstream << "generateImagePart(): Could not create image " + << "for part_of_name=\"" << part_of_name + << "\", cancelling." << std::endl; + return false; + } + + img->fill(video::SColor(color)); + // Overlay the colored image + blit_with_interpolate_overlay(img, baseimg, v2s32(0,0), v2s32(0,0), dim, ratio); + img->drop(); + } + else + { + errorstream << "generateImagePart(): Invalid " + " modification: \"" << part_of_name << "\"" << std::endl; + } + } + + return true; +} + +/* + Draw an image on top of an another one, using the alpha channel of the + source image + + This exists because IImage::copyToWithAlpha() doesn't seem to always + work. +*/ +static void blit_with_alpha(video::IImage *src, video::IImage *dst, + v2s32 src_pos, v2s32 dst_pos, v2u32 size) +{ + for (u32 y0=0; y0<size.Y; y0++) + for (u32 x0=0; x0<size.X; x0++) + { + s32 src_x = src_pos.X + x0; + s32 src_y = src_pos.Y + y0; + s32 dst_x = dst_pos.X + x0; + s32 dst_y = dst_pos.Y + y0; + video::SColor src_c = src->getPixel(src_x, src_y); + video::SColor dst_c = dst->getPixel(dst_x, dst_y); + dst_c = src_c.getInterpolated(dst_c, (float)src_c.getAlpha()/255.0f); + dst->setPixel(dst_x, dst_y, dst_c); + } +} + +/* + Draw an image on top of an another one, using the alpha channel of the + source image; only modify fully opaque pixels in destinaion +*/ +static void blit_with_alpha_overlay(video::IImage *src, video::IImage *dst, + v2s32 src_pos, v2s32 dst_pos, v2u32 size) +{ + for (u32 y0=0; y0<size.Y; y0++) + for (u32 x0=0; x0<size.X; x0++) + { + s32 src_x = src_pos.X + x0; + s32 src_y = src_pos.Y + y0; + s32 dst_x = dst_pos.X + x0; + s32 dst_y = dst_pos.Y + y0; + video::SColor src_c = src->getPixel(src_x, src_y); + video::SColor dst_c = dst->getPixel(dst_x, dst_y); + if (dst_c.getAlpha() == 255 && src_c.getAlpha() != 0) + { + dst_c = src_c.getInterpolated(dst_c, (float)src_c.getAlpha()/255.0f); + dst->setPixel(dst_x, dst_y, dst_c); + } + } +} + +/* + Draw an image on top of an another one, using the specified ratio + modify all partially-opaque pixels in the destination. +*/ +static void blit_with_interpolate_overlay(video::IImage *src, video::IImage *dst, + v2s32 src_pos, v2s32 dst_pos, v2u32 size, int ratio) +{ + for (u32 y0 = 0; y0 < size.Y; y0++) + for (u32 x0 = 0; x0 < size.X; x0++) + { + s32 src_x = src_pos.X + x0; + s32 src_y = src_pos.Y + y0; + s32 dst_x = dst_pos.X + x0; + s32 dst_y = dst_pos.Y + y0; + video::SColor src_c = src->getPixel(src_x, src_y); + video::SColor dst_c = dst->getPixel(dst_x, dst_y); + if (dst_c.getAlpha() > 0 && src_c.getAlpha() != 0) + { + if (ratio == -1) + dst_c = src_c.getInterpolated(dst_c, (float)src_c.getAlpha()/255.0f); + else + dst_c = src_c.getInterpolated(dst_c, (float)ratio/255.0f); + dst->setPixel(dst_x, dst_y, dst_c); + } + } +} + +/* + Apply mask to destination +*/ +static void apply_mask(video::IImage *mask, video::IImage *dst, + v2s32 mask_pos, v2s32 dst_pos, v2u32 size) +{ + for (u32 y0 = 0; y0 < size.Y; y0++) { + for (u32 x0 = 0; x0 < size.X; x0++) { + s32 mask_x = x0 + mask_pos.X; + s32 mask_y = y0 + mask_pos.Y; + s32 dst_x = x0 + dst_pos.X; + s32 dst_y = y0 + dst_pos.Y; + video::SColor mask_c = mask->getPixel(mask_x, mask_y); + video::SColor dst_c = dst->getPixel(dst_x, dst_y); + dst_c.color &= mask_c.color; + dst->setPixel(dst_x, dst_y, dst_c); + } + } +} + +static void draw_crack(video::IImage *crack, video::IImage *dst, + bool use_overlay, s32 frame_count, s32 progression, + video::IVideoDriver *driver) +{ + // Dimension of destination image + core::dimension2d<u32> dim_dst = dst->getDimension(); + // Dimension of original image + core::dimension2d<u32> dim_crack = crack->getDimension(); + // Count of crack stages + s32 crack_count = dim_crack.Height / dim_crack.Width; + // Limit frame_count + if (frame_count > (s32) dim_dst.Height) + frame_count = dim_dst.Height; + if (frame_count < 1) + frame_count = 1; + // Limit progression + if (progression > crack_count-1) + progression = crack_count-1; + // Dimension of a single crack stage + core::dimension2d<u32> dim_crack_cropped( + dim_crack.Width, + dim_crack.Width + ); + // Dimension of the scaled crack stage, + // which is the same as the dimension of a single destination frame + core::dimension2d<u32> dim_crack_scaled( + dim_dst.Width, + dim_dst.Height / frame_count + ); + // Create cropped and scaled crack images + video::IImage *crack_cropped = driver->createImage( + video::ECF_A8R8G8B8, dim_crack_cropped); + video::IImage *crack_scaled = driver->createImage( + video::ECF_A8R8G8B8, dim_crack_scaled); + + if (crack_cropped && crack_scaled) + { + // Crop crack image + v2s32 pos_crack(0, progression*dim_crack.Width); + crack->copyTo(crack_cropped, + v2s32(0,0), + core::rect<s32>(pos_crack, dim_crack_cropped)); + // Scale crack image by copying + crack_cropped->copyToScaling(crack_scaled); + // Copy or overlay crack image onto each frame + for (s32 i = 0; i < frame_count; ++i) + { + v2s32 dst_pos(0, dim_crack_scaled.Height * i); + if (use_overlay) + { + blit_with_alpha_overlay(crack_scaled, dst, + v2s32(0,0), dst_pos, + dim_crack_scaled); + } + else + { + blit_with_alpha(crack_scaled, dst, + v2s32(0,0), dst_pos, + dim_crack_scaled); + } + } + } + + if (crack_scaled) + crack_scaled->drop(); + + if (crack_cropped) + crack_cropped->drop(); +} + +void brighten(video::IImage *image) +{ + if (image == NULL) + return; + + core::dimension2d<u32> dim = image->getDimension(); + + for (u32 y=0; y<dim.Height; y++) + for (u32 x=0; x<dim.Width; x++) + { + video::SColor c = image->getPixel(x,y); + c.setRed(0.5 * 255 + 0.5 * (float)c.getRed()); + c.setGreen(0.5 * 255 + 0.5 * (float)c.getGreen()); + c.setBlue(0.5 * 255 + 0.5 * (float)c.getBlue()); + image->setPixel(x,y,c); + } +} + +u32 parseImageTransform(const std::string& s) +{ + int total_transform = 0; + + std::string transform_names[8]; + transform_names[0] = "i"; + transform_names[1] = "r90"; + transform_names[2] = "r180"; + transform_names[3] = "r270"; + transform_names[4] = "fx"; + transform_names[6] = "fy"; + + std::size_t pos = 0; + while(pos < s.size()) + { + int transform = -1; + for (int i = 0; i <= 7; ++i) + { + const std::string &name_i = transform_names[i]; + + if (s[pos] == ('0' + i)) + { + transform = i; + pos++; + break; + } + else if (!(name_i.empty()) && + lowercase(s.substr(pos, name_i.size())) == name_i) + { + transform = i; + pos += name_i.size(); + break; + } + } + if (transform < 0) + break; + + // Multiply total_transform and transform in the group D4 + int new_total = 0; + if (transform < 4) + new_total = (transform + total_transform) % 4; + else + new_total = (transform - total_transform + 8) % 4; + if ((transform >= 4) ^ (total_transform >= 4)) + new_total += 4; + + total_transform = new_total; + } + return total_transform; +} + +core::dimension2d<u32> imageTransformDimension(u32 transform, core::dimension2d<u32> dim) +{ + if (transform % 2 == 0) + return dim; + else + return core::dimension2d<u32>(dim.Height, dim.Width); +} + +void imageTransform(u32 transform, video::IImage *src, video::IImage *dst) +{ + if (src == NULL || dst == NULL) + return; + + core::dimension2d<u32> srcdim = src->getDimension(); + core::dimension2d<u32> dstdim = dst->getDimension(); + + assert(dstdim == imageTransformDimension(transform, srcdim)); + assert(transform <= 7); + + /* + Compute the transformation from source coordinates (sx,sy) + to destination coordinates (dx,dy). + */ + int sxn = 0; + int syn = 2; + if (transform == 0) // identity + sxn = 0, syn = 2; // sx = dx, sy = dy + else if (transform == 1) // rotate by 90 degrees ccw + sxn = 3, syn = 0; // sx = (H-1) - dy, sy = dx + else if (transform == 2) // rotate by 180 degrees + sxn = 1, syn = 3; // sx = (W-1) - dx, sy = (H-1) - dy + else if (transform == 3) // rotate by 270 degrees ccw + sxn = 2, syn = 1; // sx = dy, sy = (W-1) - dx + else if (transform == 4) // flip x + sxn = 1, syn = 2; // sx = (W-1) - dx, sy = dy + else if (transform == 5) // flip x then rotate by 90 degrees ccw + sxn = 2, syn = 0; // sx = dy, sy = dx + else if (transform == 6) // flip y + sxn = 0, syn = 3; // sx = dx, sy = (H-1) - dy + else if (transform == 7) // flip y then rotate by 90 degrees ccw + sxn = 3, syn = 1; // sx = (H-1) - dy, sy = (W-1) - dx + + for (u32 dy=0; dy<dstdim.Height; dy++) + for (u32 dx=0; dx<dstdim.Width; dx++) + { + u32 entries[4] = {dx, dstdim.Width-1-dx, dy, dstdim.Height-1-dy}; + u32 sx = entries[sxn]; + u32 sy = entries[syn]; + video::SColor c = src->getPixel(sx,sy); + dst->setPixel(dx,dy,c); + } +} + +video::ITexture* TextureSource::getNormalTexture(const std::string &name) +{ + u32 id; + if (isKnownSourceImage("override_normal.png")) + return getTexture("override_normal.png", &id); + std::string fname_base = name; + std::string normal_ext = "_normal.png"; + size_t pos = fname_base.find("."); + std::string fname_normal = fname_base.substr(0, pos) + normal_ext; + if (isKnownSourceImage(fname_normal)) { + // look for image extension and replace it + size_t i = 0; + while ((i = fname_base.find(".", i)) != std::string::npos) { + fname_base.replace(i, 4, normal_ext); + i += normal_ext.length(); + } + return getTexture(fname_base, &id); + } + return NULL; +} diff --git a/src/client/tile.h b/src/client/tile.h new file mode 100644 index 000000000..ea7a9135a --- /dev/null +++ b/src/client/tile.h @@ -0,0 +1,280 @@ +/* +Minetest +Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef TILE_HEADER +#define TILE_HEADER + +#include "irrlichttypes.h" +#include "irr_v2d.h" +#include "irr_v3d.h" +#include <ITexture.h> +#include <IrrlichtDevice.h> +#include "threads.h" +#include <string> +#include <vector> + +class IGameDef; + +/* + tile.{h,cpp}: Texture handling stuff. +*/ + +/* + Find out the full path of an image by trying different filename + extensions. + + If failed, return "". + + TODO: Should probably be moved out from here, because things needing + this function do not need anything else from this header +*/ +std::string getImagePath(std::string path); + +/* + Gets the path to a texture by first checking if the texture exists + in texture_path and if not, using the data path. + + Checks all supported extensions by replacing the original extension. + + If not found, returns "". + + Utilizes a thread-safe cache. +*/ +std::string getTexturePath(const std::string &filename); + +void clearTextureNameCache(); + +/* + ITextureSource::generateTextureFromMesh parameters +*/ +namespace irr {namespace scene {class IMesh;}} +struct TextureFromMeshParams +{ + scene::IMesh *mesh; + core::dimension2d<u32> dim; + std::string rtt_texture_name; + bool delete_texture_on_shutdown; + v3f camera_position; + v3f camera_lookat; + core::CMatrix4<f32> camera_projection_matrix; + video::SColorf ambient_light; + v3f light_position; + video::SColorf light_color; + f32 light_radius; +}; + +/* + TextureSource creates and caches textures. +*/ + +class ISimpleTextureSource +{ +public: + ISimpleTextureSource(){} + virtual ~ISimpleTextureSource(){} + virtual video::ITexture* getTexture( + const std::string &name, u32 *id = NULL) = 0; +}; + +class ITextureSource : public ISimpleTextureSource +{ +public: + ITextureSource(){} + virtual ~ITextureSource(){} + virtual u32 getTextureId(const std::string &name)=0; + virtual std::string getTextureName(u32 id)=0; + virtual video::ITexture* getTexture(u32 id)=0; + virtual video::ITexture* getTexture( + const std::string &name, u32 *id = NULL)=0; + virtual IrrlichtDevice* getDevice()=0; + virtual bool isKnownSourceImage(const std::string &name)=0; + virtual video::ITexture* generateTextureFromMesh( + const TextureFromMeshParams ¶ms)=0; + virtual video::ITexture* getNormalTexture(const std::string &name)=0; +}; + +class IWritableTextureSource : public ITextureSource +{ +public: + IWritableTextureSource(){} + virtual ~IWritableTextureSource(){} + virtual u32 getTextureId(const std::string &name)=0; + virtual std::string getTextureName(u32 id)=0; + virtual video::ITexture* getTexture(u32 id)=0; + virtual video::ITexture* getTexture( + const std::string &name, u32 *id = NULL)=0; + virtual IrrlichtDevice* getDevice()=0; + virtual bool isKnownSourceImage(const std::string &name)=0; + virtual video::ITexture* generateTextureFromMesh( + const TextureFromMeshParams ¶ms)=0; + + virtual void processQueue()=0; + virtual void insertSourceImage(const std::string &name, video::IImage *img)=0; + virtual void rebuildImagesAndTextures()=0; + virtual video::ITexture* getNormalTexture(const std::string &name)=0; +}; + +IWritableTextureSource* createTextureSource(IrrlichtDevice *device); + +#ifdef __ANDROID__ +/** + * @param size get next npot2 value + * @return npot2 value + */ +inline unsigned int npot2(unsigned int size) +{ + if (size == 0) return 0; + unsigned int npot = 1; + + while ((size >>= 1) > 0) { + npot <<= 1; + } + return npot; +} + +video::IImage * Align2Npot2(video::IImage * image, video::IVideoDriver* driver); +#endif + +enum MaterialType{ + TILE_MATERIAL_BASIC, + TILE_MATERIAL_ALPHA, + TILE_MATERIAL_LIQUID_TRANSPARENT, + TILE_MATERIAL_LIQUID_OPAQUE, + TILE_MATERIAL_WAVING_LEAVES, + TILE_MATERIAL_WAVING_PLANTS +}; + +// Material flags +// Should backface culling be enabled? +#define MATERIAL_FLAG_BACKFACE_CULLING 0x01 +// Should a crack be drawn? +#define MATERIAL_FLAG_CRACK 0x02 +// Should the crack be drawn on transparent pixels (unset) or not (set)? +// Ignored if MATERIAL_FLAG_CRACK is not set. +#define MATERIAL_FLAG_CRACK_OVERLAY 0x04 +// Animation made up by splitting the texture to vertical frames, as +// defined by extra parameters +#define MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES 0x08 +#define MATERIAL_FLAG_HIGHLIGHTED 0x10 + +/* + This fully defines the looks of a tile. + The SMaterial of a tile is constructed according to this. +*/ +struct FrameSpec +{ + FrameSpec(): + texture_id(0), + texture(NULL), + normal_texture(NULL) + { + } + u32 texture_id; + video::ITexture *texture; + video::ITexture *normal_texture; +}; + +struct TileSpec +{ + TileSpec(): + texture_id(0), + texture(NULL), + normal_texture(NULL), + alpha(255), + material_type(TILE_MATERIAL_BASIC), + material_flags( + //0 // <- DEBUG, Use the one below + MATERIAL_FLAG_BACKFACE_CULLING + ), + shader_id(0), + animation_frame_count(1), + animation_frame_length_ms(0), + rotation(0) + { + } + + bool operator==(const TileSpec &other) const + { + return ( + texture_id == other.texture_id && + /* texture == other.texture && */ + alpha == other.alpha && + material_type == other.material_type && + material_flags == other.material_flags && + rotation == other.rotation + ); + } + + bool operator!=(const TileSpec &other) const + { + return !(*this == other); + } + + // Sets everything else except the texture in the material + void applyMaterialOptions(video::SMaterial &material) const + { + switch (material_type) { + case TILE_MATERIAL_BASIC: + material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF; + break; + case TILE_MATERIAL_ALPHA: + material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL; + break; + case TILE_MATERIAL_LIQUID_TRANSPARENT: + material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA; + break; + case TILE_MATERIAL_LIQUID_OPAQUE: + material.MaterialType = video::EMT_SOLID; + break; + case TILE_MATERIAL_WAVING_LEAVES: + material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF; + break; + case TILE_MATERIAL_WAVING_PLANTS: + material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF; + break; + } + material.BackfaceCulling = (material_flags & MATERIAL_FLAG_BACKFACE_CULLING) + ? true : false; + } + + void applyMaterialOptionsWithShaders(video::SMaterial &material) const + { + material.BackfaceCulling = (material_flags & MATERIAL_FLAG_BACKFACE_CULLING) + ? true : false; + } + + u32 texture_id; + video::ITexture *texture; + video::ITexture *normal_texture; + + // Vertex alpha (when MATERIAL_ALPHA_VERTEX is used) + u8 alpha; + // Material parameters + u8 material_type; + u8 material_flags; + u32 shader_id; + // Animation parameters + u8 animation_frame_count; + u16 animation_frame_length_ms; + std::vector<FrameSpec> frames; + + u8 rotation; +}; + +#endif |