/*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+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 General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
-You should have received a copy of the GNU General Public License along
+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 "irrlichttypes_extrabloated.h"
#include "debug.h"
#include "main.h" // for g_settings
#include "filesys.h"
-#include "utility.h"
#include "settings.h"
+#include "mesh.h"
#include <ICameraSceneNode.h>
+#include "log.h"
+#include "gamedef.h"
+#include "util/string.h"
+#include "util/container.h"
+#include "util/thread.h"
+#include "util/numeric.h"
/*
A cache from texture name to texture path
last_dot_i = i;
break;
}
-
+
if(path[i] == '\\' || path[i] == '/')
break;
}
If failed, return "".
*/
-static std::string getImagePath(std::string path)
+std::string getImagePath(std::string path)
{
// A NULL-ended list of possible image extensions
const char *extensions[] = {
"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);
return path;
}
while((++ext) != NULL);
-
+
return "";
}
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 + '/' + filename;
+ 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 testpath = porting::getDataPath(filename.c_str());
+ 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;
+ video::IImage *img; // The source image
+
+ TextureInfo(
+ const std::string &name_,
+ video::ITexture *texture_=NULL,
+ video::IImage *img_=NULL
+ ):
+ name(name_),
+ texture(texture_),
+ img(img_)
+ {
+ }
+};
+
+/*
+ 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.c_str());
+ 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.c_str());
+ 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, from getTextureIdDirect
+ - if other thread, adds to request queue and waits for main thread
+ */
+ u32 getTextureId(const std::string &name);
+
+ /*
+ Example names:
+ "stone.png"
+ "stone.png^crack2"
+ "stone.png^mineral_coal.png"
+ "stone.png^mineral_coal.png^crack1"
+
+ - If texture specified by name is found from cache, return the
+ cached id.
+ - Otherwise generate the texture, add to cache and return id.
+ Recursion is used to find out the largest found part of the
+ texture and continue based on it.
+
+ The id 0 points to a NULL texture. It is returned in case of error.
+ */
+ u32 getTextureIdDirect(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* generateImageFromScratch(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.
+ // Shall be called from the main thread.
+ bool generateImage(std::string part_of_name, video::IImage *& baseimg);
+
+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;
+
+ // 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::list<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),
- m_main_atlas_image(NULL),
- m_main_atlas_texture(NULL)
+ m_device(device)
{
assert(m_device);
-
- m_atlaspointer_cache_mutex.Init();
-
+
m_main_thread = get_current_thread_id();
-
- // Add a NULL AtlasPointer as the first index, named ""
- m_atlaspointer_cache.push_back(SourceAtlasPointer(""));
+
+ // Add a NULL TextureInfo as the first index, named ""
+ m_textureinfo_cache.push_back(TextureInfo(""));
m_name_to_id[""] = 0;
- // Build main texture atlas
- if(g_settings->getBool("enable_texture_atlas"))
- buildMainAtlas();
- else
- dstream<<"INFO: Not building texture atlas."<<std::endl;
+ // 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();
-void TextureSource::processQueue()
-{
- /*
- Fetch textures
- */
- if(m_get_texture_queue.size() > 0)
+ unsigned int textures_before = driver->getTextureCount();
+
+ for (std::vector<TextureInfo>::iterator iter =
+ m_textureinfo_cache.begin();
+ iter != m_textureinfo_cache.end(); iter++)
{
- GetRequest<std::string, u32, u8, u8>
- request = m_get_texture_queue.pop();
+ //cleanup texture
+ if (iter->texture)
+ driver->removeTexture(iter->texture);
- dstream<<"INFO: TextureSource::processQueue(): "
- <<"got texture request with "
- <<"name=\""<<request.key<<"\""
- <<std::endl;
+ //cleanup source image
+ if (iter->img)
+ iter->img->drop();
+ }
+ m_textureinfo_cache.clear();
- GetResult<std::string, u32, u8, u8>
- result;
- result.key = request.key;
- result.callers = request.callers;
- result.item = getTextureIdDirect(request.key);
+ for (std::list<video::ITexture*>::iterator iter =
+ m_texture_trash.begin(); iter != m_texture_trash.end();
+ iter++)
+ {
+ video::ITexture *t = *iter;
- request.dest->push_back(result);
+ //cleanup trashed texture
+ driver->removeTexture(t);
}
+
+ infostream << "~TextureSource() "<< textures_before << "/"
+ << driver->getTextureCount() << std::endl;
}
u32 TextureSource::getTextureId(const std::string &name)
{
- //dstream<<"INFO: getTextureId(): \""<<name<<"\""<<std::endl;
+ //infostream<<"getTextureId(): \""<<name<<"\""<<std::endl;
{
/*
See if texture already exists
*/
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
- core::map<std::string, u32>::Node *n;
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
+ std::map<std::string, u32>::iterator n;
n = m_name_to_id.find(name);
- if(n != NULL)
+ if(n != m_name_to_id.end())
{
- return n->getValue();
+ return n->second;
}
}
-
+
/*
Get texture
*/
}
else
{
- dstream<<"INFO: getTextureId(): Queued: name=\""<<name<<"\""<<std::endl;
+ infostream<<"getTextureId(): Queued: name=\""<<name<<"\""<<std::endl;
// We're gonna ask the result to be put into here
- ResultQueue<std::string, u32, u8, u8> result_queue;
-
+ static ResultQueue<std::string, u32, u8, u8> result_queue;
+
// Throw a request in
m_get_texture_queue.add(name, 0, 0, &result_queue);
-
- dstream<<"INFO: Waiting for texture from main thread, name=\""
- <<name<<"\""<<std::endl;
-
+
+ /*infostream<<"Waiting for texture from main thread, name=\""
+ <<name<<"\""<<std::endl;*/
+
try
{
- // Wait result for a second
- GetResult<std::string, u32, u8, u8>
+ while(true) {
+ // Wait result for a second
+ GetResult<std::string, u32, u8, u8>
result = result_queue.pop_front(1000);
-
- // Check that at least something worked OK
- assert(result.key == name);
- return result.item;
+ if (result.key == name) {
+ return result.item;
+ }
+ }
}
catch(ItemNotFoundException &e)
{
- dstream<<"WARNING: Waiting for texture timed out."<<std::endl;
+ errorstream<<"Waiting for texture " << name << " timed out."<<std::endl;
return 0;
}
}
-
- dstream<<"WARNING: getTextureId(): Failed"<<std::endl;
+
+ infostream<<"getTextureId(): Failed"<<std::endl;
return 0;
}
-// Draw a progress bar on the image
-void make_progressbar(float value, video::IImage *image);
-
-/*
- Generate image based on a string like "stone.png" or "[crack0".
- if baseimg is NULL, it is created. Otherwise stuff is made on it.
-*/
-bool generate_image(std::string part_of_name, video::IImage *& baseimg,
- IrrlichtDevice *device);
-
-/*
- Generates an image from a full string like
- "stone.png^mineral_coal.png^[crack0".
-
- This is used by buildMainAtlas().
-*/
-video::IImage* generate_image_from_scratch(std::string name,
- IrrlichtDevice *device);
+// 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);
+
+// 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::getTextureIdDirect(const std::string &name)
{
- //dstream<<"INFO: getTextureIdDirect(): name=\""<<name<<"\""<<std::endl;
+ //infostream<<"getTextureIdDirect(): name=\""<<name<<"\""<<std::endl;
// Empty name means texture 0
if(name == "")
{
- dstream<<"INFO: getTextureIdDirect(): name is empty"<<std::endl;
+ infostream<<"getTextureIdDirect(): name is empty"<<std::endl;
return 0;
}
-
+
/*
Calling only allowed from main thread
*/
if(get_current_thread_id() != m_main_thread)
{
- dstream<<"ERROR: TextureSource::getTextureIdDirect() "
+ errorstream<<"TextureSource::getTextureIdDirect() "
"called not from main thread"<<std::endl;
return 0;
}
See if texture already exists
*/
{
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
- core::map<std::string, u32>::Node *n;
+ std::map<std::string, u32>::iterator n;
n = m_name_to_id.find(name);
- if(n != NULL)
+ if(n != m_name_to_id.end())
{
- dstream<<"INFO: getTextureIdDirect(): \""<<name
- <<"\" found in cache"<<std::endl;
- return n->getValue();
+ /*infostream<<"getTextureIdDirect(): \""<<name
+ <<"\" found in cache"<<std::endl;*/
+ return n->second;
}
}
- dstream<<"INFO: getTextureIdDirect(): \""<<name
- <<"\" NOT found in cache. Creating it."<<std::endl;
-
+ /*infostream<<"getTextureIdDirect(): \""<<name
+ <<"\" NOT found in cache. Creating it."<<std::endl;*/
+
/*
Get the base image
*/
is made.
*/
u32 base_image_id = 0;
-
+
// Find last meta separator in name
s32 last_separator_position = -1;
for(s32 i=name.size()-1; i>=0; i--)
{
// Construct base name
base_image_name = name.substr(0, last_separator_position);
- /*dstream<<"INFO: getTextureIdDirect(): Calling itself recursively"
+ /*infostream<<"getTextureIdDirect(): Calling itself recursively"
" to get base image of \""<<name<<"\" = \""
<<base_image_name<<"\""<<std::endl;*/
base_image_id = getTextureIdDirect(base_image_name);
}
-
- //dstream<<"base_image_id="<<base_image_id<<std::endl;
-
+
+ //infostream<<"base_image_id="<<base_image_id<<std::endl;
+
video::IVideoDriver* driver = m_device->getVideoDriver();
assert(driver);
An image will be built from files and then converted into a texture.
*/
video::IImage *baseimg = NULL;
-
+
// If a base image was found, copy it to baseimg
if(base_image_id != 0)
{
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
- SourceAtlasPointer ap = m_atlaspointer_cache[base_image_id];
+ TextureInfo *ti = &m_textureinfo_cache[base_image_id];
- video::IImage *image = ap.atlas_img;
-
- if(image == NULL)
+ if(ti->img == NULL)
{
- dstream<<"WARNING: getTextureIdDirect(): NULL image in "
+ infostream<<"getTextureIdDirect(): WARNING: NULL image in "
<<"cache: \""<<base_image_name<<"\""
<<std::endl;
}
else
{
- core::dimension2d<u32> dim = ap.intsize;
+ core::dimension2d<u32> dim = ti->img->getDimension();
baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
- core::position2d<s32> pos_to(0,0);
- core::position2d<s32> pos_from = ap.intpos;
-
- image->copyTo(
+ ti->img->copyTo(
baseimg, // target
v2s32(0,0), // position in target
- core::rect<s32>(pos_from, dim) // from
+ core::rect<s32>(v2s32(0,0), dim) // from
);
- /*dstream<<"INFO: getTextureIdDirect(): Loaded \""
+ /*infostream<<"getTextureIdDirect(): Loaded \""
<<base_image_name<<"\" from image cache"
<<std::endl;*/
}
}
-
+
/*
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_position+1);
- //dstream<<"last_part_of_name=\""<<last_part_of_name<<"\""<<std::endl;
+ //infostream<<"last_part_of_name=\""<<last_part_of_name<<"\""<<std::endl;
// Generate image according to part of name
- if(generate_image(last_part_of_name, baseimg, m_device) == false)
+ if(!generateImage(last_part_of_name, baseimg))
{
- dstream<<"INFO: getTextureIdDirect(): "
+ errorstream<<"getTextureIdDirect(): "
"failed to generate \""<<last_part_of_name<<"\""
<<std::endl;
}
// If no resulting image, print a warning
if(baseimg == NULL)
{
- dstream<<"WARNING: getTextureIdDirect(): baseimg is NULL (attempted to"
+ errorstream<<"getTextureIdDirect(): baseimg is NULL (attempted to"
" create texture \""<<name<<"\""<<std::endl;
}
-
+
if(baseimg != NULL)
{
// Create texture from resulting image
t = driver->addTexture(name.c_str(), baseimg);
}
-
+
/*
Add texture to caches (add NULL textures too)
*/
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
-
- u32 id = m_atlaspointer_cache.size();
- AtlasPointer ap(id);
- ap.atlas = t;
- ap.pos = v2f(0,0);
- ap.size = v2f(1,1);
- ap.tiled = 0;
- core::dimension2d<u32> baseimg_dim(0,0);
- if(baseimg)
- baseimg_dim = baseimg->getDimension();
- SourceAtlasPointer nap(name, ap, baseimg, v2s32(0,0), baseimg_dim);
- m_atlaspointer_cache.push_back(nap);
- m_name_to_id.insert(name, id);
-
- /*dstream<<"INFO: getTextureIdDirect(): "
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
+
+ u32 id = m_textureinfo_cache.size();
+ TextureInfo ti(name, t, baseimg);
+ m_textureinfo_cache.push_back(ti);
+ m_name_to_id[name] = id;
+
+ /*infostream<<"getTextureIdDirect(): "
<<"Returning id="<<id<<" for name \""<<name<<"\""<<std::endl;*/
-
+
return id;
}
std::string TextureSource::getTextureName(u32 id)
{
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
- if(id >= m_atlaspointer_cache.size())
+ if(id >= m_textureinfo_cache.size())
{
- dstream<<"WARNING: TextureSource::getTextureName(): id="<<id
- <<" >= m_atlaspointer_cache.size()="
- <<m_atlaspointer_cache.size()<<std::endl;
+ errorstream<<"TextureSource::getTextureName(): id="<<id
+ <<" >= m_textureinfo_cache.size()="
+ <<m_textureinfo_cache.size()<<std::endl;
return "";
}
-
- return m_atlaspointer_cache[id].name;
-}
-
-AtlasPointer TextureSource::getTexture(u32 id)
-{
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
-
- if(id >= m_atlaspointer_cache.size())
- return AtlasPointer(0, NULL);
-
- return m_atlaspointer_cache[id].a;
+ return m_textureinfo_cache[id].name;
}
-void TextureSource::buildMainAtlas()
+video::ITexture* TextureSource::getTexture(u32 id)
{
- dstream<<"TextureSource::buildMainAtlas()"<<std::endl;
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
- //return; // Disable (for testing)
-
- video::IVideoDriver* driver = m_device->getVideoDriver();
- assert(driver);
+ if(id >= m_textureinfo_cache.size())
+ return NULL;
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
+ return m_textureinfo_cache[id].texture;
+}
- // Create an image of the right size
- core::dimension2d<u32> atlas_dim(1024,1024);
- video::IImage *atlas_img =
- driver->createImage(video::ECF_A8R8G8B8, atlas_dim);
- //assert(atlas_img);
- if(atlas_img == NULL)
- {
- dstream<<"TextureSource::buildMainAtlas(): Failed to create atlas "
- "image; not building texture atlas."<<std::endl;
- return;
+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()
+{
/*
- A list of stuff to include in the texture atlas.
+ 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();
- It is a single-dimensional texture atlas due to the need to tile
- textures.
-
- It should contain as much of the stuff shown in game as possible,
- to minimize texture changes.
+ /*infostream<<"TextureSource::processQueue(): "
+ <<"got texture request with "
+ <<"name=\""<<request.key<<"\""
+ <<std::endl;*/
- It fills up quickly, so do not add anything that isn't contained
- in most MapBlocks. E.g. mese isn't suitable but stone is.
- */
+ m_get_texture_queue.pushResult(request,getTextureIdDirect(request.key));
+ }
+}
- core::array<std::string> sourcelist;
-
- sourcelist.push_back("stone.png");
- sourcelist.push_back("mud.png");
- sourcelist.push_back("sand.png");
- sourcelist.push_back("grass.png");
- sourcelist.push_back("grass_footsteps.png");
- sourcelist.push_back("tree.png");
- sourcelist.push_back("tree_top.png");
- sourcelist.push_back("water.png");
- sourcelist.push_back("leaves.png");
- sourcelist.push_back("glass.png");
- sourcelist.push_back("mud.png^grass_side.png");
- sourcelist.push_back("cobble.png");
- sourcelist.push_back("mossycobble.png");
- sourcelist.push_back("gravel.png");
- sourcelist.push_back("jungletree.png");
-
- sourcelist.push_back("stone.png^mineral_coal.png");
- sourcelist.push_back("stone.png^mineral_iron.png");
-
- // Padding to disallow texture bleeding
- s32 padding = 16;
+void TextureSource::insertSourceImage(const std::string &name, video::IImage *img)
+{
+ //infostream<<"TextureSource::insertSourceImage(): name="<<name<<std::endl;
- /*
- First pass: generate almost everything
- */
- core::position2d<s32> pos_in_atlas(0,0);
-
- pos_in_atlas.Y += padding;
+ assert(get_current_thread_id() == m_main_thread);
- for(u32 i=0; i<sourcelist.size(); i++)
- {
- std::string name = sourcelist[i];
-
- /*video::IImage *img = driver->createImageFromFile(
- getTexturePath(name.c_str()).c_str());
- if(img == NULL)
- continue;
-
- core::dimension2d<u32> dim = img->getDimension();
- // Make a copy with the right color format
- video::IImage *img2 =
- driver->createImage(video::ECF_A8R8G8B8, dim);
- img->copyTo(img2);
- img->drop();*/
-
- // Generate image by name
- video::IImage *img2 = generate_image_from_scratch(name, m_device);
- if(img2 == NULL)
- {
- dstream<<"WARNING: TextureSource::buildMainAtlas(): Couldn't generate texture atlas: Couldn't generate image \""<<name<<"\""<<std::endl;
- continue;
- }
+ m_sourcecache.insert(name, img, true, m_device->getVideoDriver());
+ m_source_image_existence.set(name, true);
+}
- core::dimension2d<u32> dim = img2->getDimension();
+void TextureSource::rebuildImagesAndTextures()
+{
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
- // Don't add to atlas if image is large
- core::dimension2d<u32> max_size_in_atlas(32,32);
- if(dim.Width > max_size_in_atlas.Width
- || dim.Height > max_size_in_atlas.Height)
- {
- dstream<<"INFO: TextureSource::buildMainAtlas(): Not adding "
- <<"\""<<name<<"\" because image is large"<<std::endl;
- continue;
- }
+ video::IVideoDriver* driver = m_device->getVideoDriver();
- // Stop making atlas if atlas is full
- if(pos_in_atlas.Y + dim.Height > atlas_dim.Height)
- {
- dstream<<"WARNING: TextureSource::buildMainAtlas(): "
- <<"Atlas is full, not adding more textures."
- <<std::endl;
- break;
- }
-
- dstream<<"INFO: TextureSource::buildMainAtlas(): Adding \""<<name
- <<"\" to texture atlas"<<std::endl;
+ // Recreate textures
+ for(u32 i=0; i<m_textureinfo_cache.size(); i++){
+ TextureInfo *ti = &m_textureinfo_cache[i];
+ video::IImage *img = generateImageFromScratch(ti->name);
+ // Create texture from resulting image
+ video::ITexture *t = NULL;
+ if(img)
+ t = driver->addTexture(ti->name.c_str(), img);
+ video::ITexture *t_old = ti->texture;
+ // Replace texture
+ ti->texture = t;
+ ti->img = img;
+
+ if (t_old != 0)
+ m_texture_trash.push_back(t_old);
+ }
+}
- // Tile it a few times in the X direction
- u16 xwise_tiling = 16;
- for(u32 j=0; j<xwise_tiling; j++)
- {
- // Copy the copy to the atlas
- img2->copyToWithAlpha(atlas_img,
- pos_in_atlas + v2s32(j*dim.Width,0),
- core::rect<s32>(v2s32(0,0), dim),
- video::SColor(255,255,255,255),
- NULL);
- }
+video::ITexture* TextureSource::generateTextureFromMesh(
+ const TextureFromMeshParams ¶ms)
+{
+ video::IVideoDriver *driver = m_device->getVideoDriver();
+ assert(driver);
- // Copy the borders a few times to disallow texture bleeding
- for(u32 side=0; side<2; side++) // top and bottom
- for(s32 y0=0; y0<padding; y0++)
- for(s32 x0=0; x0<(s32)xwise_tiling*(s32)dim.Width; x0++)
+ if(driver->queryFeature(video::EVDF_RENDER_TO_TARGET) == false)
+ {
+ static bool warned = false;
+ if(!warned)
{
- s32 dst_y;
- s32 src_y;
- if(side==0)
- {
- dst_y = y0 + pos_in_atlas.Y + dim.Height;
- src_y = pos_in_atlas.Y + dim.Height - 1;
- }
- else
- {
- dst_y = -y0 + pos_in_atlas.Y-1;
- src_y = pos_in_atlas.Y;
- }
- s32 x = x0 + pos_in_atlas.X * dim.Width;
- video::SColor c = atlas_img->getPixel(x, src_y);
- atlas_img->setPixel(x,dst_y,c);
+ errorstream<<"TextureSource::generateTextureFromMesh(): "
+ <<"EVDF_RENDER_TO_TARGET not supported."<<std::endl;
+ warned = true;
}
-
- img2->drop();
-
- /*
- Add texture to caches
- */
-
- // Get next id
- u32 id = m_atlaspointer_cache.size();
-
- // Create AtlasPointer
- AtlasPointer ap(id);
- ap.atlas = NULL; // Set on the second pass
- ap.pos = v2f((float)pos_in_atlas.X/(float)atlas_dim.Width,
- (float)pos_in_atlas.Y/(float)atlas_dim.Height);
- ap.size = v2f((float)dim.Width/(float)atlas_dim.Width,
- (float)dim.Width/(float)atlas_dim.Height);
- ap.tiled = xwise_tiling;
-
- // Create SourceAtlasPointer and add to containers
- SourceAtlasPointer nap(name, ap, atlas_img, pos_in_atlas, dim);
- m_atlaspointer_cache.push_back(nap);
- m_name_to_id.insert(name, id);
-
- // Increment position
- pos_in_atlas.Y += dim.Height + padding * 2;
+ return NULL;
}
- /*
- Make texture
- */
- video::ITexture *t = driver->addTexture("__main_atlas__", atlas_img);
- assert(t);
-
- /*
- Second pass: set texture pointer in generated AtlasPointers
- */
- for(u32 i=0; i<sourcelist.size(); i++)
+ // Create render target texture
+ video::ITexture *rtt = driver->addRenderTargetTexture(
+ params.dim, params.rtt_texture_name.c_str(),
+ video::ECF_A8R8G8B8);
+ if(rtt == NULL)
{
- std::string name = sourcelist[i];
- if(m_name_to_id.find(name) == NULL)
- continue;
- u32 id = m_name_to_id[name];
- //dstream<<"id of name "<<name<<" is "<<id<<std::endl;
- m_atlaspointer_cache[id].a.atlas = t;
+ errorstream<<"TextureSource::generateTextureFromMesh(): "
+ <<"addRenderTargetTexture returned NULL."<<std::endl;
+ return NULL;
}
- /*
- Write image to file so that it can be inspected
- */
- /*driver->writeImageToFile(atlas_img,
- getTexturePath("main_atlas.png").c_str());*/
+ // Set render target
+ driver->setRenderTarget(rtt, false, true, video::SColor(0,0,0,0));
+
+ // 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();
+
+ // NOTE: The scene nodes should not be dropped, otherwise
+ // smgr->drop() segfaults
+ /*cube->drop();
+ camera->drop();
+ light->drop();*/
+ // 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* generate_image_from_scratch(std::string name,
- IrrlichtDevice *device)
+video::IImage* TextureSource::generateImageFromScratch(std::string name)
{
- /*dstream<<"INFO: generate_image_from_scratch(): "
+ /*infostream<<"generateImageFromScratch(): "
"\""<<name<<"\""<<std::endl;*/
-
- video::IVideoDriver* driver = device->getVideoDriver();
+
+ video::IVideoDriver *driver = m_device->getVideoDriver();
assert(driver);
/*
char separator = '^';
// Find last meta separator in name
- s32 last_separator_position = -1;
- for(s32 i=name.size()-1; i>=0; i--)
- {
- if(name[i] == separator)
- {
- last_separator_position = i;
- break;
- }
- }
-
- /*dstream<<"INFO: generate_image_from_scratch(): "
- <<"last_separator_position="<<last_separator_position
- <<std::endl;*/
+ s32 last_separator_position = name.find_last_of(separator);
/*
If separator was found, construct the base name and make the
{
// Construct base name
base_image_name = name.substr(0, last_separator_position);
- /*dstream<<"INFO: generate_image_from_scratch(): Calling itself recursively"
- " to get base image of \""<<name<<"\" = \""
- <<base_image_name<<"\""<<std::endl;*/
- baseimg = generate_image_from_scratch(base_image_name, device);
+ baseimg = generateImageFromScratch(base_image_name);
}
-
+
/*
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_position+1);
- //dstream<<"last_part_of_name=\""<<last_part_of_name<<"\""<<std::endl;
-
+
// Generate image according to part of name
- if(generate_image(last_part_of_name, baseimg, device) == false)
+ if(!generateImage(last_part_of_name, baseimg))
{
- dstream<<"INFO: generate_image_from_scratch(): "
+ errorstream<<"generateImageFromScratch(): "
"failed to generate \""<<last_part_of_name<<"\""
<<std::endl;
return NULL;
}
-
+
return baseimg;
}
-bool generate_image(std::string part_of_name, video::IImage *& baseimg,
- IrrlichtDevice *device)
+bool TextureSource::generateImage(std::string part_of_name, video::IImage *& baseimg)
{
- video::IVideoDriver* driver = device->getVideoDriver();
+ video::IVideoDriver* driver = m_device->getVideoDriver();
assert(driver);
// Stuff starting with [ are special commands
- if(part_of_name[0] != '[')
+ if(part_of_name.size() == 0 || part_of_name[0] != '[')
{
- // A normal texture; load it from a file
- std::string path = getTexturePath(part_of_name.c_str());
- /*dstream<<"INFO: generate_image(): Loading path \""<<path
- <<"\""<<std::endl;*/
-
- video::IImage *image = driver->createImageFromFile(path.c_str());
+ video::IImage *image = m_sourcecache.getOrLoad(part_of_name, m_device);
if(image == NULL)
{
- dstream<<"WARNING: generate_image(): Could not load image \""
- <<part_of_name<<"\" from path \""<<path<<"\""
- <<" while building texture"<<std::endl;
-
- //return false;
-
- dstream<<"WARNING: generate_image(): Creating a dummy"
- <<" image for \""<<part_of_name<<"\""<<std::endl;
+ if(part_of_name != ""){
+ 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;
+ }
// Just create a dummy image
//core::dimension2d<u32> dim(2,2);
// If base image is NULL, load as base.
if(baseimg == NULL)
{
- //dstream<<"INFO: Setting "<<part_of_name<<" as base"<<std::endl;
+ //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
+ 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);
- image->drop();
}
// Else blit on base.
else
{
- //dstream<<"INFO: Blitting "<<part_of_name<<" on base"<<std::endl;
+ //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 from in the blitted image
core::position2d<s32> pos_from(0,0);
// Blit
- image->copyToWithAlpha(baseimg, pos_to,
+ /*image->copyToWithAlpha(baseimg, pos_to,
core::rect<s32>(pos_from, dim),
video::SColor(255,255,255,255),
- NULL);
- // Drop image
- image->drop();
+ NULL);*/
+ blit_with_alpha(image, baseimg, pos_from, pos_to, dim);
}
+ //cleanup
+ image->drop();
}
else
{
// A special texture modification
- dstream<<"INFO: generate_image(): generating special "
+ /*infostream<<"generateImage(): generating special "
<<"modification \""<<part_of_name<<"\""
- <<std::endl;
-
- /*
- This is the simplest of all; it just adds stuff to the
- name so that a separate texture is created.
+ <<std::endl;*/
- It is used to make textures for stuff that doesn't want
- to implement getting the texture from a bigger texture
- atlas.
- */
- if(part_of_name == "[forcesingle")
- {
- }
/*
- [crackN
+ [crack:N:P
+ [cracko:N:P
Adds a cracking texture
+ N = animation frame count, P = crack progression
*/
- else if(part_of_name.substr(0,6) == "[crack")
+ if(part_of_name.substr(0,6) == "[crack")
{
if(baseimg == NULL)
{
- dstream<<"WARNING: generate_image(): baseimg==NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
}
-
- // Crack image number
- u16 progression = stoi(part_of_name.substr(6));
- // Size of the base image
- core::dimension2d<u32> dim_base = baseimg->getDimension();
-
+ // 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 = driver->createImageFromFile(
- getTexturePath("crack.png").c_str());
-
- if(img_crack)
+ video::IImage *img_crack = m_sourcecache.getOrLoad(
+ "crack_anylength.png", m_device);
+
+ if(img_crack && progression >= 0)
{
- // Dimension of original image
- core::dimension2d<u32> dim_crack
- = img_crack->getDimension();
- // Count of crack stages
- u32 crack_count = dim_crack.Height / dim_crack.Width;
- // Limit progression
- if(progression > crack_count-1)
- progression = crack_count-1;
- // Dimension of a single scaled crack stage
- core::dimension2d<u32> dim_crack_scaled_single(
- dim_base.Width,
- dim_base.Height
- );
- // Dimension of scaled size
- core::dimension2d<u32> dim_crack_scaled(
- dim_crack_scaled_single.Width,
- dim_crack_scaled_single.Height * crack_count
- );
- // Create scaled crack image
- video::IImage *img_crack_scaled = driver->createImage(
- video::ECF_A8R8G8B8, dim_crack_scaled);
- if(img_crack_scaled)
- {
- // Scale crack image by copying
- img_crack->copyToScaling(img_crack_scaled);
-
- // Position to copy the crack from
- core::position2d<s32> pos_crack_scaled(
- 0,
- dim_crack_scaled_single.Height * progression
- );
-
- // This tiling does nothing currently but is useful
- for(u32 y0=0; y0<dim_base.Height
- / dim_crack_scaled_single.Height; y0++)
- for(u32 x0=0; x0<dim_base.Width
- / dim_crack_scaled_single.Width; x0++)
- {
- // Position to copy the crack to in the base image
- core::position2d<s32> pos_base(
- x0*dim_crack_scaled_single.Width,
- y0*dim_crack_scaled_single.Height
- );
- // Rectangle to copy the crack from on the scaled image
- core::rect<s32> rect_crack_scaled(
- pos_crack_scaled,
- dim_crack_scaled_single
- );
- // Copy it
- img_crack_scaled->copyToWithAlpha(baseimg, pos_base,
- rect_crack_scaled,
- video::SColor(255,255,255,255),
- NULL);
- }
-
- img_crack_scaled->drop();
- }
-
+ draw_crack(img_crack, baseimg,
+ use_overlay, frame_count,
+ progression, driver);
img_crack->drop();
}
}
sf.next(":");
u32 w0 = stoi(sf.next("x"));
u32 h0 = stoi(sf.next(":"));
- dstream<<"INFO: combined w="<<w0<<" h="<<h0<<std::endl;
+ infostream<<"combined w="<<w0<<" h="<<h0<<std::endl;
core::dimension2d<u32> dim(w0,h0);
- baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
+ 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(":");
- dstream<<"INFO: Adding \""<<filename
+ infostream<<"Adding \""<<filename
<<"\" to combined ("<<x<<","<<y<<")"
<<std::endl;
- video::IImage *img = driver->createImageFromFile(
- getTexturePath(filename.c_str()).c_str());
+ video::IImage *img = m_sourcecache.getOrLoad(filename, m_device);
if(img)
{
core::dimension2d<u32> dim = img->getDimension();
- dstream<<"INFO: Size "<<dim.Width
+ 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,
+ /*img2->copyToWithAlpha(baseimg, pos_base,
core::rect<s32>(v2s32(0,0), dim),
video::SColor(255,255,255,255),
- NULL);
+ NULL);*/
+ blit_with_alpha(img2, baseimg, v2s32(0,0), pos_base, dim);
img2->drop();
}
else
{
- dstream<<"WARNING: img==NULL"<<std::endl;
+ infostream<<"img==NULL"<<std::endl;
}
}
}
/*
- [progressbarN
- Adds a progress bar, 0.0 <= N <= 1.0
+ "[brighten"
*/
- else if(part_of_name.substr(0,12) == "[progressbar")
+ else if(part_of_name.substr(0,9) == "[brighten")
{
if(baseimg == NULL)
{
- dstream<<"WARNING: generate_image(): baseimg==NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
}
- float value = stof(part_of_name.substr(12));
- make_progressbar(value, baseimg);
+ brighten(baseimg);
}
/*
- "[noalpha:filename.png"
- Use an image without it's alpha channel.
+ "[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
+ 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)
+ if(baseimg == NULL)
{
- dstream<<"WARNING: generate_image(): baseimg!=NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
}
- std::string filename = part_of_name.substr(9);
-
- std::string path = getTexturePath(filename.c_str());
+ core::dimension2d<u32> dim = baseimg->getDimension();
- dstream<<"INFO: generate_image(): Loading path \""<<path
- <<"\""<<std::endl;
-
- video::IImage *image = driver->createImageFromFile(path.c_str());
-
- if(image == NULL)
+ // Set alpha to full
+ for(u32 y=0; y<dim.Height; y++)
+ for(u32 x=0; x<dim.Width; x++)
{
- dstream<<"WARNING: generate_image(): Loading path \""
- <<path<<"\" failed"<<std::endl;
- }
- else
- {
- core::dimension2d<u32> dim = image->getDimension();
- baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
-
- // Set alpha to full
- for(u32 y=0; y<dim.Height; y++)
- for(u32 x=0; x<dim.Width; x++)
- {
- video::SColor c = image->getPixel(x,y);
- c.setAlpha(255);
- image->setPixel(x,y,c);
- }
- // Blit
- image->copyTo(baseimg);
-
- image->drop();
+ video::SColor c = baseimg->getPixel(x,y);
+ c.setAlpha(255);
+ baseimg->setPixel(x,y,c);
}
}
/*
- "[makealpha:R,G,B:filename.png"
- Use an image with converting one color to transparent.
+ "[makealpha:R,G,B"
+ Convert one color to transparent.
*/
else if(part_of_name.substr(0,11) == "[makealpha:")
{
- if(baseimg != NULL)
+ if(baseimg == NULL)
{
- dstream<<"WARNING: generate_image(): baseimg!=NULL "
+ errorstream<<"generateImage(): 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(":"));
+ u32 b1 = stoi(sf.next(""));
std::string filename = sf.next("");
- std::string path = getTexturePath(filename.c_str());
+ core::dimension2d<u32> dim = baseimg->getDimension();
- dstream<<"INFO: generate_image(): Loading path \""<<path
- <<"\""<<std::endl;
-
- video::IImage *image = driver->createImageFromFile(path.c_str());
-
- if(image == NULL)
- {
- dstream<<"WARNING: generate_image(): Loading path \""
- <<path<<"\" failed"<<std::endl;
- }
- else
- {
- core::dimension2d<u32> dim = image->getDimension();
- baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
-
- for(u32 y=0; y<dim.Height; y++)
- for(u32 x=0; x<dim.Width; x++)
- {
- video::SColor c = image->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);
- image->setPixel(x,y,c);
- }
- // Blit
- image->copyTo(baseimg);
+ /*video::IImage *oldbaseimg = baseimg;
+ baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
+ oldbaseimg->copyTo(baseimg);
+ oldbaseimg->drop();*/
- image->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);
}
}
/*
- "[makealpha2:R,G,B;R2,G2,B2:filename.png"
- Use an image with converting two colors to transparent.
+ "[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(0,12) == "[makealpha2:")
+ else if(part_of_name.substr(0,10) == "[transform")
{
- if(baseimg != NULL)
+ if(baseimg == NULL)
{
- dstream<<"WARNING: generate_image(): baseimg!=NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
}
- Strfnd sf(part_of_name.substr(12));
- u32 r1 = stoi(sf.next(","));
- u32 g1 = stoi(sf.next(","));
- u32 b1 = stoi(sf.next(";"));
- u32 r2 = stoi(sf.next(","));
- u32 g2 = stoi(sf.next(","));
- u32 b2 = stoi(sf.next(":"));
- std::string filename = sf.next("");
-
- std::string path = getTexturePath(filename.c_str());
-
- dstream<<"INFO: generate_image(): Loading path \""<<path
- <<"\""<<std::endl;
-
- video::IImage *image = driver->createImageFromFile(path.c_str());
-
- if(image == NULL)
- {
- dstream<<"WARNING: generate_image(): Loading path \""
- <<path<<"\" failed"<<std::endl;
- }
- else
- {
- core::dimension2d<u32> dim = image->getDimension();
- baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
-
- for(u32 y=0; y<dim.Height; y++)
- for(u32 x=0; x<dim.Width; x++)
- {
- video::SColor c = image->getPixel(x,y);
- u32 r = c.getRed();
- u32 g = c.getGreen();
- u32 b = c.getBlue();
- if(!(r == r1 && g == g1 && b == b1) &&
- !(r == r2 && g == g2 && b == b2))
- continue;
- c.setAlpha(0);
- image->setPixel(x,y,c);
- }
- // Blit
- image->copyTo(baseimg);
-
- image->drop();
- }
+ 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
{
if(baseimg != NULL)
{
- dstream<<"WARNING: generate_image(): baseimg!=NULL "
+ errorstream<<"generateImage(): baseimg!=NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
std::string imagename_left = sf.next("{");
std::string imagename_right = sf.next("{");
-#if 1
- //TODO
-
- if(driver->queryFeature(video::EVDF_RENDER_TO_TARGET) == false)
- {
- dstream<<"WARNING: generate_image(): EVDF_RENDER_TO_TARGET"
- " not supported. Creating fallback image"<<std::endl;
- baseimg = generate_image_from_scratch(
- imagename_top, device);
- return true;
- }
-
- u32 w0 = 64;
- u32 h0 = 64;
- //dstream<<"INFO: inventorycube w="<<w0<<" h="<<h0<<std::endl;
- core::dimension2d<u32> dim(w0,h0);
-
// Generate images for the faces of the cube
- video::IImage *img_top = generate_image_from_scratch(
- imagename_top, device);
- video::IImage *img_left = generate_image_from_scratch(
- imagename_left, device);
- video::IImage *img_right = generate_image_from_scratch(
- imagename_right, device);
+ video::IImage *img_top =
+ generateImageFromScratch(imagename_top);
+ video::IImage *img_left =
+ generateImageFromScratch(imagename_left);
+ video::IImage *img_right =
+ generateImageFromScratch(imagename_right);
assert(img_top && img_left && img_right);
- // TODO: Create textures from images
+ // Create textures from images
video::ITexture *texture_top = driver->addTexture(
(imagename_top + "__temp__").c_str(), img_top);
- assert(texture_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();
-
- // Create render target texture
- video::ITexture *rtt = NULL;
- std::string rtt_name = part_of_name + "_RTT";
- rtt = driver->addRenderTargetTexture(dim, rtt_name.c_str(),
- video::ECF_A8R8G8B8);
- assert(rtt);
-
- // Set render target
- driver->setRenderTarget(rtt, true, true,
- video::SColor(0,0,0,0));
-
- // Get a scene manager
- scene::ISceneManager *smgr_main = device->getSceneManager();
- assert(smgr_main);
- scene::ISceneManager *smgr = smgr_main->createNewSceneManager();
- assert(smgr);
-
+
/*
- Create scene:
- - An unit cube is centered at 0,0,0
- - Camera looks at cube from Y+, Z- towards Y-, Z+
- NOTE: Cube has to be changed to something else because
- the textures cannot be set individually (or can they?)
+ 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);
- scene::ISceneNode* cube = smgr->addCubeSceneNode(1.0, NULL, -1,
- v3f(0,0,0), v3f(0, 45, 0));
- // Set texture of cube
- cube->setMaterialTexture(0, texture_top);
- //cube->setMaterialFlag(video::EMF_LIGHTING, false);
- cube->setMaterialFlag(video::EMF_ANTI_ALIASING, false);
- cube->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
+ 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;
- scene::ICameraSceneNode* camera = smgr->addCameraSceneNode(0,
- v3f(0, 1.0, -1.5), v3f(0, 0, 0));
- // Set orthogonal projection
- core::CMatrix4<f32> pm;
- pm.buildProjectionMatrixOrthoLH(1.65, 1.65, 0, 100);
- camera->setProjectionMatrix(pm, true);
-
- /*scene::ILightSceneNode *light =*/ smgr->addLightSceneNode(0,
- v3f(-50, 100, 0), video::SColorf(0.5,0.5,0.5), 1000);
-
- smgr->setAmbientLight(video::SColorf(0.2,0.2,0.2));
-
- // Render scene
- driver->beginScene(true, true, video::SColor(0,0,0,0));
- smgr->drawAll();
- driver->endScene();
-
- // NOTE: The scene nodes should not be dropped, otherwise
- // smgr->drop() segfaults
- /*cube->drop();
- camera->drop();
- light->drop();*/
- // Drop scene manager
- smgr->drop();
-
- // Unset render target
- driver->setRenderTarget(0, true, true, 0);
-
- //TODO: Free textures of images
+ video::ITexture *rtt = generateTextureFromMesh(params);
+
+ // Drop mesh
+ cube->drop();
+
+ // Free textures of images
driver->removeTexture(texture_top);
-
- // Create image of render target
- video::IImage *image = driver->createImage(rtt, v2s32(0,0), dim);
+ driver->removeTexture(texture_left);
+ driver->removeTexture(texture_right);
+ if(rtt == NULL)
+ {
+ baseimg = generateImageFromScratch(imagename_top);
+ return true;
+ }
+
+ // Create image of render target
+ video::IImage *image = driver->createImage(rtt, v2s32(0,0), params.dim);
assert(image);
-
- baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
+
+ // Cleanup texture
+ driver->removeTexture(rtt);
+
+ baseimg = driver->createImage(video::ECF_A8R8G8B8, params.dim);
if(image)
{
image->copyTo(baseimg);
image->drop();
}
-#endif
+ }
+ /*
+ [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<<"generateImage(): 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<<"generateImage(): 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;
}
else
{
- dstream<<"WARNING: generate_image(): Invalid "
+ errorstream<<"generateImage(): Invalid "
" modification: \""<<part_of_name<<"\""<<std::endl;
}
}
return true;
}
-void make_progressbar(float value, video::IImage *image)
+/*
+ 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);
+ }
+ }
+}
+
+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> size = image->getDimension();
- u32 barheight = size.Height/16;
- u32 barpad_x = size.Width/16;
- u32 barpad_y = size.Height/16;
- u32 barwidth = size.Width - barpad_x*2;
- v2u32 barpos(barpad_x, size.Height - barheight - barpad_y);
+ core::dimension2d<u32> dim = image->getDimension();
- u32 barvalue_i = (u32)(((float)barwidth * value) + 0.5);
+ 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);
+ }
+}
- video::SColor active(255,255,0,0);
- video::SColor inactive(255,0,0,0);
- for(u32 x0=0; x0<barwidth; x0++)
+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())
{
- video::SColor *c;
- if(x0 < barvalue_i)
- c = &active;
- else
- c = &inactive;
- u32 x = x0 + barpos.X;
- for(u32 y=barpos.Y; y<barpos.Y+barheight; y++)
+ int transform = -1;
+ for(int i = 0; i <= 7; ++i)
{
- image->setPixel(x,y, *c);
+ 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 >= 0 && 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);
+ }
+}