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+/*
+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 &params);
+
+ // 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 &params)
+{
+ 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 16:25:52 +0000