/*
-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 Lesser General Public License as published by
*/
#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 "mapnode.h" // For texture atlas making
-#include "nodedef.h" // For texture atlas making
#include "gamedef.h"
-#include "utility_string.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
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[] = {
// Check all filename extensions. Returns "" if not found.
fullpath = getImagePath(testpath);
}
-
- /*
- Check from $user/textures/all
- */
- if(fullpath == "")
- {
- std::string texture_path = porting::path_user + DIR_DELIM
- + "textures" + DIR_DELIM + "all";
- std::string testpath = texture_path + DIR_DELIM + filename;
- // Check all filename extensions. Returns "" if not found.
- fullpath = getImagePath(testpath);
- }
/*
Check from default data directory
return fullpath;
}
+void clearTextureNameCache()
+{
+ g_texturename_to_path_cache.clear();
+}
+
/*
- An internal variant of AtlasPointer with more data.
- (well, more like a wrapper)
+ Stores internal information about a texture.
*/
-struct SourceAtlasPointer
+struct TextureInfo
{
std::string name;
- AtlasPointer a;
- video::IImage *atlas_img; // The source image of the atlas
- // Integer variants of position and size
- v2s32 intpos;
- v2u32 intsize;
+ video::ITexture *texture;
+ video::IImage *img; // The source image
- SourceAtlasPointer(
+ TextureInfo(
const std::string &name_,
- AtlasPointer a_=AtlasPointer(0, NULL),
- video::IImage *atlas_img_=NULL,
- v2s32 intpos_=v2s32(0,0),
- v2u32 intsize_=v2u32(0,0)
+ video::ITexture *texture_=NULL,
+ video::IImage *img_=NULL
):
name(name_),
- a(a_),
- atlas_img(atlas_img_),
- intpos(intpos_),
- intsize(intsize_)
+ texture(texture_),
+ img(img_)
{
}
};
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
- core::map<std::string, video::IImage*>::Node *n;
+ std::map<std::string, video::IImage*>::iterator n;
n = m_images.find(name);
- if(n){
- video::IImage *oldimg = n->getValue();
- if(oldimg)
- oldimg->drop();
+ 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){
- m_images[name] = img2;
- return;
+ toadd = img2;
+ need_to_grab = false;
}
}
}
- img->grab();
- m_images[name] = img;
+
+ if (need_to_grab)
+ toadd->grab();
+ m_images[name] = toadd;
}
video::IImage* get(const std::string &name)
{
- core::map<std::string, video::IImage*>::Node *n;
+ std::map<std::string, video::IImage*>::iterator n;
n = m_images.find(name);
- if(n)
- return n->getValue();
+ 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)
{
- core::map<std::string, video::IImage*>::Node *n;
+ std::map<std::string, video::IImage*>::iterator n;
n = m_images.find(name);
- if(n){
- n->getValue()->grab(); // Grab for caller
- return n->getValue();
+ 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());
infostream<<"SourceImageCache::getOrLoad(): Loading path \""<<path
<<"\""<<std::endl;
video::IImage *img = driver->createImageFromFile(path.c_str());
- // Even if could not be loaded, put as NULL
- //m_images[name] = img;
+
if(img){
m_images[name] = img;
img->grab(); // Grab for caller
return img;
}
private:
- core::map<std::string, video::IImage*> m_images;
+ std::map<std::string, video::IImage*> m_images;
};
/*
{
public:
TextureSource(IrrlichtDevice *device);
- ~TextureSource();
+ virtual ~TextureSource();
/*
Example case:
Example case #2:
- Assume a texture with the id 1 exists, and has the name
- "stone.png^mineral1" and is specified as a part of some atlas.
+ "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
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^mineral1^crack0").
+ getTextureId("stone.png^mineral_coal.png^crack0").
*/
and not found in cache, the call is queued to the main thread
for processing.
*/
- AtlasPointer getTexture(u32 id);
-
- AtlasPointer getTexture(const std::string &name)
- {
- return getTexture(getTextureId(name));
- }
-
- // Gets a separate texture
- video::ITexture* getTextureRaw(const std::string &name)
- {
- AtlasPointer ap = getTexture(name + "^[forcesingle");
- return ap.atlas;
- }
+ video::ITexture* getTexture(u32 id);
- // Gets a separate texture atlas pointer
- AtlasPointer getTextureRawAP(const AtlasPointer &ap)
- {
- return getTexture(getTextureName(ap.id) + "^[forcesingle");
- }
+ video::ITexture* getTexture(const std::string &name, u32 *id);
// Returns a pointer to the irrlicht device
virtual IrrlichtDevice* getDevice()
return m_device;
}
- // Update new texture pointer and texture coordinates to an
- // AtlasPointer based on it's texture id
- void updateAP(AtlasPointer &ap);
+ 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.
// Rebuild images and textures from the current set of source images
// Shall be called from the main thread.
void rebuildImagesAndTextures();
-
- // Build the main texture atlas which contains most of the
- // textures.
- void buildMainAtlas(class IGameDef *gamedef);
+ // 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
// 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.
- core::array<SourceAtlasPointer> m_atlaspointer_cache;
+ std::vector<TextureInfo> m_textureinfo_cache;
// Maps a texture name to an index in the former.
- core::map<std::string, u32> m_name_to_id;
+ std::map<std::string, u32> m_name_to_id;
// The two former containers are behind this mutex
- JMutex m_atlaspointer_cache_mutex;
+ JMutex m_textureinfo_cache_mutex;
- // Main texture atlas. This is filled at startup and is then not touched.
- video::IImage *m_main_atlas_image;
- video::ITexture *m_main_atlas_texture;
-
// 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)
}
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_textureinfo_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;
+
+ // 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);
+
+ //cleanup source image
+ if (iter->img)
+ iter->img->drop();
+ }
+ m_textureinfo_cache.clear();
+
+ for (std::list<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)
/*
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;
}
}
return 0;
}
-// Overlay image on top of another image (used for cracks)
-void overlay(video::IImage *image, video::IImage *overlay);
-
// 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
// Apply transform to image data
void imageTransform(u32 transform, video::IImage *src, video::IImage *dst);
-/*
- 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, SourceImageCache *sourcecache);
-
-/*
- 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, SourceImageCache *sourcecache);
-
/*
This method generates all the textures
*/
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())
{
/*infostream<<"getTextureIdDirect(): \""<<name
<<"\" found in cache"<<std::endl;*/
- return n->getValue();
+ return n->second;
}
}
// 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];
-
- video::IImage *image = ap.atlas_img;
+ TextureInfo *ti = &m_textureinfo_cache[base_image_id];
- if(image == NULL)
+ if(ti->img == NULL)
{
infostream<<"getTextureIdDirect(): WARNING: NULL image in "
<<"cache: \""<<base_image_name<<"\""
}
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
);
/*infostream<<"getTextureIdDirect(): Loaded \""
//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, &m_sourcecache))
+ if(!generateImage(last_part_of_name, baseimg))
{
errorstream<<"getTextureIdDirect(): "
"failed to generate \""<<last_part_of_name<<"\""
Add texture to caches (add NULL textures too)
*/
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
+ JMutexAutoLock lock(m_textureinfo_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);
+ 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;*/
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())
{
errorstream<<"TextureSource::getTextureName(): id="<<id
- <<" >= m_atlaspointer_cache.size()="
- <<m_atlaspointer_cache.size()<<std::endl;
+ <<" >= m_textureinfo_cache.size()="
+ <<m_textureinfo_cache.size()<<std::endl;
return "";
}
- return m_atlaspointer_cache[id].name;
+ return m_textureinfo_cache[id].name;
}
-
-AtlasPointer TextureSource::getTexture(u32 id)
+video::ITexture* TextureSource::getTexture(u32 id)
{
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
- if(id >= m_atlaspointer_cache.size())
- return AtlasPointer(0, NULL);
-
- return m_atlaspointer_cache[id].a;
+ if(id >= m_textureinfo_cache.size())
+ return NULL;
+
+ return m_textureinfo_cache[id].texture;
}
-void TextureSource::updateAP(AtlasPointer &ap)
+video::ITexture* TextureSource::getTexture(const std::string &name, u32 *id)
{
- AtlasPointer ap2 = getTexture(ap.id);
- ap = ap2;
+ u32 actual_id = getTextureId(name);
+ if(id){
+ *id = actual_id;
+ }
+ return getTexture(actual_id);
}
void TextureSource::processQueue()
/*
Fetch textures
*/
- if(m_get_texture_queue.size() > 0)
+ if(!m_get_texture_queue.empty())
{
GetRequest<std::string, u32, u8, u8>
request = m_get_texture_queue.pop();
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_atlaspointer_cache_mutex);
-
- /*// Oh well... just clear everything, they'll load sometime.
- m_atlaspointer_cache.clear();
- m_name_to_id.clear();*/
+ JMutexAutoLock lock(m_textureinfo_cache_mutex);
video::IVideoDriver* driver = m_device->getVideoDriver();
-
- // Remove source images from textures to disable inheriting textures
- // from existing textures
- /*for(u32 i=0; i<m_atlaspointer_cache.size(); i++){
- SourceAtlasPointer *sap = &m_atlaspointer_cache[i];
- sap->atlas_img->drop();
- sap->atlas_img = NULL;
- }*/
-
+
// Recreate textures
- for(u32 i=0; i<m_atlaspointer_cache.size(); i++){
- SourceAtlasPointer *sap = &m_atlaspointer_cache[i];
- video::IImage *img =
- generate_image_from_scratch(sap->name, m_device, &m_sourcecache);
+ 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(sap->name.c_str(), img);
-
+ t = driver->addTexture(ti->name.c_str(), img);
+ video::ITexture *t_old = ti->texture;
// Replace texture
- sap->a.atlas = t;
- sap->a.pos = v2f(0,0);
- sap->a.size = v2f(1,1);
- sap->a.tiled = 0;
- sap->atlas_img = img;
- sap->intpos = v2s32(0,0);
- sap->intsize = img->getDimension();
+ ti->texture = t;
+ ti->img = img;
+
+ if (t_old != 0)
+ m_texture_trash.push_back(t_old);
}
}
-void TextureSource::buildMainAtlas(class IGameDef *gamedef)
+video::ITexture* TextureSource::generateTextureFromMesh(
+ const TextureFromMeshParams ¶ms)
{
- assert(gamedef->tsrc() == this);
- INodeDefManager *ndef = gamedef->ndef();
-
- infostream<<"TextureSource::buildMainAtlas()"<<std::endl;
-
- //return; // Disable (for testing)
-
- video::IVideoDriver* driver = m_device->getVideoDriver();
+ video::IVideoDriver *driver = m_device->getVideoDriver();
assert(driver);
- JMutexAutoLock lock(m_atlaspointer_cache_mutex);
-
- // Create an image of the right size
- core::dimension2d<u32> max_dim = driver->getMaxTextureSize();
- core::dimension2d<u32> atlas_dim(2048,2048);
- atlas_dim.Width = MYMIN(atlas_dim.Width, max_dim.Width);
- atlas_dim.Height = MYMIN(atlas_dim.Height, max_dim.Height);
- video::IImage *atlas_img =
- driver->createImage(video::ECF_A8R8G8B8, atlas_dim);
- //assert(atlas_img);
- if(atlas_img == NULL)
- {
- errorstream<<"TextureSource::buildMainAtlas(): Failed to create atlas "
- "image; not building texture atlas."<<std::endl;
- return;
- }
-
- /*
- Grab list of stuff to include in the texture atlas from the
- main content features
- */
-
- core::map<std::string, bool> sourcelist;
-
- for(u16 j=0; j<MAX_CONTENT+1; j++)
- {
- if(j == CONTENT_IGNORE || j == CONTENT_AIR)
- continue;
- const ContentFeatures &f = ndef->get(j);
- for(u32 i=0; i<6; i++)
- {
- std::string name = f.tiledef[i].name;
- sourcelist[name] = true;
- }
- }
-
- infostream<<"Creating texture atlas out of textures: ";
- for(core::map<std::string, bool>::Iterator
- i = sourcelist.getIterator();
- i.atEnd() == false; i++)
- {
- std::string name = i.getNode()->getKey();
- infostream<<"\""<<name<<"\" ";
- }
- infostream<<std::endl;
-
- // Padding to disallow texture bleeding
- // (16 needed if mipmapping is used; otherwise less will work too)
- s32 padding = 16;
- s32 column_padding = 16;
- s32 column_width = 256; // Space for 16 pieces of 16x16 textures
-
- /*
- First pass: generate almost everything
- */
- core::position2d<s32> pos_in_atlas(0,0);
-
- pos_in_atlas.X = column_padding;
- pos_in_atlas.Y = padding;
-
- for(core::map<std::string, bool>::Iterator
- i = sourcelist.getIterator();
- i.atEnd() == false; i++)
+ if(driver->queryFeature(video::EVDF_RENDER_TO_TARGET) == false)
{
- std::string name = i.getNode()->getKey();
-
- // Generate image by name
- video::IImage *img2 = generate_image_from_scratch(name, m_device,
- &m_sourcecache);
- if(img2 == NULL)
- {
- errorstream<<"TextureSource::buildMainAtlas(): "
- <<"Couldn't generate image \""<<name<<"\""<<std::endl;
- continue;
- }
-
- core::dimension2d<u32> dim = img2->getDimension();
-
- // Don't add to atlas if image is too large
- core::dimension2d<u32> max_size_in_atlas(64,64);
- if(dim.Width > max_size_in_atlas.Width
- || dim.Height > max_size_in_atlas.Height)
- {
- infostream<<"TextureSource::buildMainAtlas(): Not adding "
- <<"\""<<name<<"\" because image is large"<<std::endl;
- continue;
- }
-
- // Wrap columns and stop making atlas if atlas is full
- if(pos_in_atlas.Y + dim.Height > atlas_dim.Height)
- {
- if(pos_in_atlas.X > (s32)atlas_dim.Width - column_width - column_padding){
- errorstream<<"TextureSource::buildMainAtlas(): "
- <<"Atlas is full, not adding more textures."
- <<std::endl;
- break;
- }
- pos_in_atlas.Y = padding;
- pos_in_atlas.X += column_width + column_padding*2;
- }
-
- /*infostream<<"TextureSource::buildMainAtlas(): Adding \""<<name
- <<"\" to texture atlas"<<std::endl;*/
-
- // Tile it a few times in the X direction
- u16 xwise_tiling = column_width / dim.Width;
- if(xwise_tiling > 16) // Limit to 16 (more gives no benefit)
- 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);*/
- img2->copyTo(atlas_img,
- pos_in_atlas + v2s32(j*dim.Width,0),
- core::rect<s32>(v2s32(0,0), dim),
- NULL);
- }
-
- // 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++)
+ 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;
- video::SColor c = atlas_img->getPixel(x, src_y);
- atlas_img->setPixel(x,dst_y,c);
- }
-
- for(u32 side=0; side<2; side++) // left and right
- for(s32 x0=0; x0<column_padding; x0++)
- for(s32 y0=-padding; y0<(s32)dim.Height+padding; y0++)
- {
- s32 dst_x;
- s32 src_x;
- if(side==0)
- {
- dst_x = x0 + pos_in_atlas.X + dim.Width*xwise_tiling;
- src_x = pos_in_atlas.X + dim.Width*xwise_tiling - 1;
- }
- else
- {
- dst_x = -x0 + pos_in_atlas.X-1;
- src_x = pos_in_atlas.X;
- }
- s32 y = y0 + pos_in_atlas.Y;
- s32 src_y = MYMAX((int)pos_in_atlas.Y, MYMIN((int)pos_in_atlas.Y + (int)dim.Height - 1, y));
- s32 dst_y = y;
- video::SColor c = atlas_img->getPixel(src_x, src_y);
- atlas_img->setPixel(dst_x,dst_y,c);
+ errorstream<<"TextureSource::generateTextureFromMesh(): "
+ <<"EVDF_RENDER_TO_TARGET not supported."<<std::endl;
+ warned = true;
}
-
- img2->drop();
-
- /*
- Add texture to caches
- */
-
- bool reuse_old_id = false;
- u32 id = m_atlaspointer_cache.size();
- // Check old id without fetching a texture
- core::map<std::string, u32>::Node *n;
- n = m_name_to_id.find(name);
- // If it exists, we will replace the old definition
- if(n){
- id = n->getValue();
- reuse_old_id = true;
- /*infostream<<"TextureSource::buildMainAtlas(): "
- <<"Replacing old AtlasPointer"<<std::endl;*/
- }
-
- // 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);
- if(reuse_old_id)
- m_atlaspointer_cache[id] = nap;
- else
- m_atlaspointer_cache.push_back(nap);
- m_name_to_id[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(core::map<std::string, bool>::Iterator
- i = sourcelist.getIterator();
- i.atEnd() == false; 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 = i.getNode()->getKey();
- if(m_name_to_id.find(name) == NULL)
- continue;
- u32 id = m_name_to_id[name];
- //infostream<<"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
- */
- /*std::string atlaspath = porting::path_user
- + DIR_DELIM + "generated_texture_atlas.png";
- infostream<<"Removing and writing texture atlas for inspection to "
- <<atlaspath<<std::endl;
- fs::RecursiveDelete(atlaspath);
- driver->writeImageToFile(atlas_img, atlaspath.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, SourceImageCache *sourcecache)
+video::IImage* TextureSource::generateImageFromScratch(std::string name)
{
- /*infostream<<"generate_image_from_scratch(): "
+ /*infostream<<"generateImageFromScratch(): "
"\""<<name<<"\""<<std::endl;*/
-
- video::IVideoDriver* driver = device->getVideoDriver();
+
+ video::IVideoDriver *driver = m_device->getVideoDriver();
assert(driver);
/*
// Find last meta separator in name
s32 last_separator_position = name.find_last_of(separator);
- //if(last_separator_position == std::npos)
- // last_separator_position = -1;
-
- /*infostream<<"generate_image_from_scratch(): "
- <<"last_separator_position="<<last_separator_position
- <<std::endl;*/
/*
If separator was found, construct the base name and make the
{
// Construct base name
base_image_name = name.substr(0, last_separator_position);
- /*infostream<<"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,
- sourcecache);
+ baseimg = generateImageFromScratch(base_image_name);
}
/*
*/
std::string last_part_of_name = name.substr(last_separator_position+1);
- //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, device, sourcecache))
+ if(!generateImage(last_part_of_name, baseimg))
{
- errorstream<<"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, SourceImageCache *sourcecache)
+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.size() == 0 || part_of_name[0] != '[')
{
- video::IImage *image = sourcecache->getOrLoad(part_of_name, device);
+ video::IImage *image = m_sourcecache.getOrLoad(part_of_name, m_device);
if(image == NULL)
{
if(part_of_name != ""){
- errorstream<<"generate_image(): Could not load image \""
+ errorstream<<"generateImage(): Could not load image \""
<<part_of_name<<"\""<<" while building texture"<<std::endl;
- errorstream<<"generate_image(): Creating a dummy"
+ errorstream<<"generateImage(): Creating a dummy"
<<" image for \""<<part_of_name<<"\""<<std::endl;
}
core::dimension2d<u32> dim = image->getDimension();
baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
image->copyTo(baseimg);
- image->drop();
}
// Else blit on base.
else
// 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
- /*infostream<<"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.
-
- 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")
- {
- // If base image is NULL, create a random color
- if(baseimg == NULL)
- {
- core::dimension2d<u32> dim(1,1);
- baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
- assert(baseimg);
- baseimg->setPixel(0,0, video::SColor(255,myrand()%256,
- myrand()%256,myrand()%256));
- }
- }
- /*
- [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)
{
- errorstream<<"generate_image(): baseimg==NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
}
-
+
// Crack image number and overlay option
- s32 progression = 0;
- bool use_overlay = false;
- if(part_of_name.substr(6,1) == "o")
- {
- progression = stoi(part_of_name.substr(7));
- use_overlay = true;
- }
- else
- {
- progression = stoi(part_of_name.substr(6));
- use_overlay = false;
- }
+ 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(":"));
- // Size of the base image
- core::dimension2d<u32> dim_base = baseimg->getDimension();
-
/*
Load crack image.
It is an image with a number of cracking stages
horizontally tiled.
*/
- video::IImage *img_crack = sourcecache->getOrLoad(
- "crack_anylength.png", device);
-
+ 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
- s32 crack_count = dim_crack.Height / dim_crack.Width;
- // 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
- );
- // Create cropped and scaled crack images
- video::IImage *img_crack_cropped = driver->createImage(
- video::ECF_A8R8G8B8, dim_crack_cropped);
- video::IImage *img_crack_scaled = driver->createImage(
- video::ECF_A8R8G8B8, dim_base);
-
- if(img_crack_cropped && img_crack_scaled)
- {
- // Crop crack image
- v2s32 pos_crack(0, progression*dim_crack.Width);
- img_crack->copyTo(img_crack_cropped,
- v2s32(0,0),
- core::rect<s32>(pos_crack, dim_crack_cropped));
- // Scale crack image by copying
- img_crack_cropped->copyToScaling(img_crack_scaled);
- // Copy or overlay crack image
- if(use_overlay)
- {
- overlay(baseimg, img_crack_scaled);
- }
- else
- {
- /*img_crack_scaled->copyToWithAlpha(
- baseimg,
- v2s32(0,0),
- core::rect<s32>(v2s32(0,0), dim_base),
- video::SColor(255,255,255,255));*/
- blit_with_alpha(img_crack_scaled, baseimg,
- v2s32(0,0), v2s32(0,0), dim_base);
- }
- }
-
- if(img_crack_scaled)
- img_crack_scaled->drop();
-
- if(img_crack_cropped)
- img_crack_cropped->drop();
-
+ draw_crack(img_crack, baseimg,
+ use_overlay, frame_count,
+ progression, driver);
img_crack->drop();
}
}
u32 h0 = stoi(sf.next(":"));
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(","));
infostream<<"Adding \""<<filename
<<"\" to combined ("<<x<<","<<y<<")"
<<std::endl;
- video::IImage *img = sourcecache->getOrLoad(filename, device);
+ video::IImage *img = m_sourcecache.getOrLoad(filename, m_device);
if(img)
{
core::dimension2d<u32> dim = img->getDimension();
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
{
if(baseimg == NULL)
{
- errorstream<<"generate_image(): baseimg==NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
{
if(baseimg == NULL)
{
- errorstream<<"generate_image(): baseimg==NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
{
if(baseimg == NULL)
{
- errorstream<<"generate_image(): baseimg==NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
{
if(baseimg == NULL)
{
- errorstream<<"generate_image(): baseimg==NULL "
+ errorstream<<"generateImage(): baseimg==NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
{
if(baseimg != NULL)
{
- errorstream<<"generate_image(): baseimg!=NULL "
+ errorstream<<"generateImage(): baseimg!=NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
std::string imagename_right = sf.next("{");
// Generate images for the faces of the cube
- video::IImage *img_top = generate_image_from_scratch(
- imagename_top, device, sourcecache);
- video::IImage *img_left = generate_image_from_scratch(
- imagename_left, device, sourcecache);
- video::IImage *img_right = generate_image_from_scratch(
- imagename_right, device, sourcecache);
+ 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);
// Create textures from images
cube->getMeshBuffer(4)->getMaterial().setTexture(0, texture_left);
cube->getMeshBuffer(5)->getMaterial().setTexture(0, texture_left);
- core::dimension2d<u32> dim(64,64);
- std::string rtt_texture_name = part_of_name + "_RTT";
-
- v3f camera_position(0, 1.0, -1.5);
- camera_position.rotateXZBy(45);
- v3f camera_lookat(0, 0, 0);
- core::CMatrix4<f32> camera_projection_matrix;
+ 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
- camera_projection_matrix.buildProjectionMatrixOrthoLH(
+ params.camera_projection_matrix.buildProjectionMatrixOrthoLH(
1.65, 1.65, 0, 100);
- video::SColorf ambient_light(0.2,0.2,0.2);
- v3f light_position(10, 100, -50);
- video::SColorf light_color(0.5,0.5,0.5);
- f32 light_radius = 1000;
-
- video::ITexture *rtt = generateTextureFromMesh(
- cube, device, dim, rtt_texture_name,
- camera_position,
- camera_lookat,
- camera_projection_matrix,
- ambient_light,
- light_position,
- light_color,
- light_radius);
+ 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();
if(rtt == NULL)
{
- baseimg = generate_image_from_scratch(
- imagename_top, device, sourcecache);
+ baseimg = generateImageFromScratch(imagename_top);
return true;
}
// Create image of render target
- video::IImage *image = driver->createImage(rtt, v2s32(0,0), dim);
+ 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)
{
if(baseimg == NULL)
baseimg = driver->createImage(video::ECF_A8R8G8B8, v2u32(16,16));
- video::IImage *img = sourcecache->getOrLoad(filename, device);
+ video::IImage *img = m_sourcecache.getOrLoad(filename, m_device);
if(img)
{
core::dimension2d<u32> dim = img->getDimension();
u32 frame_index = stoi(sf.next(":"));
if(baseimg == NULL){
- errorstream<<"generate_image(): baseimg!=NULL "
+ errorstream<<"generateImage(): baseimg!=NULL "
<<"for part_of_name=\""<<part_of_name
<<"\", cancelling."<<std::endl;
return false;
video::IImage *img = driver->createImage(video::ECF_A8R8G8B8,
frame_size);
if(!img){
- errorstream<<"generate_image(): Could not create image "
+ 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);
}
else
{
- errorstream<<"generate_image(): Invalid "
+ errorstream<<"generateImage(): Invalid "
" modification: \""<<part_of_name<<"\""<<std::endl;
}
}
return true;
}
-void overlay(video::IImage *image, video::IImage *overlay)
-{
- /*
- Copy overlay to image, taking alpha into account.
- Where image is transparent, don't copy from overlay.
- Images sizes must be identical.
- */
- if(image == NULL || overlay == NULL)
- return;
-
- core::dimension2d<u32> dim = image->getDimension();
- core::dimension2d<u32> dim_overlay = overlay->getDimension();
- assert(dim == dim_overlay);
-
- for(u32 y=0; y<dim.Height; y++)
- for(u32 x=0; x<dim.Width; x++)
- {
- video::SColor c1 = image->getPixel(x,y);
- video::SColor c2 = overlay->getPixel(x,y);
- u32 a1 = c1.getAlpha();
- u32 a2 = c2.getAlpha();
- if(a1 == 255 && a2 != 0)
- {
- c1.setRed((c1.getRed()*(255-a2) + c2.getRed()*a2)/255);
- c1.setGreen((c1.getGreen()*(255-a2) + c2.getGreen()*a2)/255);
- c1.setBlue((c1.getBlue()*(255-a2) + c2.getBlue()*a2)/255);
- }
- image->setPixel(x,y,c1);
- }
-}
-
/*
Draw an image on top of an another one, using the alpha channel of the
source image
}
}
+/*
+ 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)