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/*
Minetest-c55
Copyright (C) 2010 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
(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.
You should have received a copy of the GNU 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 "debug.h"
TextureSource::TextureSource(IrrlichtDevice *device):
m_device(device),
m_main_atlas_image(NULL),
m_main_atlas_texture(NULL)
{
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(""));
m_name_to_id[""] = 0;
// Build main texture atlas
buildMainAtlas();
}
TextureSource::~TextureSource()
{
}
void TextureSource::processQueue()
{
/*
Fetch textures
*/
if(m_get_texture_queue.size() > 0)
{
GetRequest<std::string, u32, u8, u8>
request = m_get_texture_queue.pop();
dstream<<"INFO: TextureSource::processQueue(): "
<<"got texture request with "
<<"name="<<request.key
<<std::endl;
GetResult<std::string, u32, u8, u8>
result;
result.key = request.key;
result.callers = request.callers;
result.item = getTextureIdDirect(request.key);
request.dest->push_back(result);
}
}
u32 TextureSource::getTextureId(const std::string &name)
{
//dstream<<"INFO: getTextureId(): name="<<name<<std::endl;
{
/*
See if texture already exists
*/
JMutexAutoLock lock(m_atlaspointer_cache_mutex);
core::map<std::string, u32>::Node *n;
n = m_name_to_id.find(name);
if(n != NULL)
{
return n->getValue();
}
}
/*
Get texture
*/
if(get_current_thread_id() == m_main_thread)
{
return getTextureIdDirect(name);
}
else
{
dstream<<"INFO: 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;
// 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;
try
{
// 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;
}
catch(ItemNotFoundException &e)
{
dstream<<"WARNING: Waiting for texture timed out."<<std::endl;
return 0;
}
}
dstream<<"WARNING: 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,
video::IVideoDriver* driver);
/*
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,
video::IVideoDriver* driver);
/*
This method generates all the textures
*/
u32 TextureSource::getTextureIdDirect(const std::string &name)
{
dstream<<"INFO: getTextureIdDirect(): name="<<name<<std::endl;
// Empty name means texture 0
if(name == "")
{
dstream<<"INFO: 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() "
"called not from main thread"<<std::endl;
return 0;
}
/*
See if texture already exists
*/
{
JMutexAutoLock lock(m_atlaspointer_cache_mutex);
core::map<std::string, u32>::Node *n;
n = m_name_to_id.find(name);
if(n != NULL)
{
dstream<<"INFO: getTextureIdDirect(): name="<<name
<<" found in cache"<<std::endl;
return n->getValue();
}
}
dstream<<"INFO: getTextureIdDirect(): name="<<name
<<" NOT found in cache. Creating it."<<std::endl;
/*
Get the base image
*/
char separator = '^';
/*
This is set to the id of the base image.
If left 0, there is no base image and a completely new 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--)
{
if(name[i] == separator)
{
last_separator_position = i;
break;
}
}
/*
If separator was found, construct the base name and make the
base image using a recursive call
*/
std::string base_image_name;
if(last_separator_position != -1)
{
// Construct base name
base_image_name = name.substr(0, last_separator_position);
dstream<<"INFO: getTextureIdDirect(): Calling itself recursively"
" to get base image, name="<<base_image_name<<std::endl;
base_image_id = getTextureIdDirect(base_image_name);
}
dstream<<"base_image_id="<<base_image_id<<std::endl;
video::IVideoDriver* driver = m_device->getVideoDriver();
assert(driver);
video::ITexture *t = NULL;
/*
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);
SourceAtlasPointer ap = m_atlaspointer_cache[base_image_id];
video::IImage *image = ap.atlas_img;
core::dimension2d<u32> dim = ap.intsize;
baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
core::position2d<s32> pos_to(0,0);
core::position2d<s32> pos_from = ap.intpos;
image->copyTo(
baseimg, // target
v2s32(0,0), // position in target
core::rect<s32>(pos_from, dim) // from
);
dstream<<"INFO: 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;
// Generate image according to part of name
if(generate_image(last_part_of_name, baseimg, driver) == false)
{
dstream<<"INFO: getTextureIdDirect(): "
"failed to generate \""<<last_part_of_name<<"\""
<<std::endl;
return 0;
}
// If no resulting image, return NULL
if(baseimg == NULL)
{
dstream<<"WARNING: getTextureIdDirect(): baseimg is NULL (attempted to"
" create texture \""<<name<<"\""<<std::endl;
return 0;
}
// Create texture from resulting image
t = driver->addTexture(name.c_str(), baseimg);
// If no texture
if(t == NULL)
return 0;
/*
Add texture to caches
*/
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;
SourceAtlasPointer nap(name, ap, baseimg, v2s32(0,0), baseimg->getDimension());
m_atlaspointer_cache.push_back(nap);
m_name_to_id.insert(name, id);
dstream<<"INFO: getTextureIdDirect(): name="<<name
<<": succesfully returning id="<<id<<std::endl;
return id;
}
std::string TextureSource::getTextureName(u32 id)
{
JMutexAutoLock lock(m_atlaspointer_cache_mutex);
if(id >= m_atlaspointer_cache.size())
{
dstream<<"WARNING: TextureSource::getTextureName(): id="<<id
<<" >= m_atlaspointer_cache.size()="
<<m_atlaspointer_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;
}
void TextureSource::buildMainAtlas()
{
dstream<<"TextureSource::buildMainAtlas()"<<std::endl;
//return; // Disable (for testing)
video::IVideoDriver* driver = m_device->getVideoDriver();
assert(driver);
JMutexAutoLock lock(m_atlaspointer_cache_mutex);
// 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);
/*
A list of stuff to add. This should contain as much of the
stuff shown in game as possible, to minimize texture changes.
*/
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("mud.png^grass_side.png");
sourcelist.push_back("stone.png^mineral_coal.png");
sourcelist.push_back("stone.png^mineral_iron.png");
sourcelist.push_back("mud.png^mineral_coal.png");
sourcelist.push_back("mud.png^mineral_iron.png");
sourcelist.push_back("sand.png^mineral_coal.png");
sourcelist.push_back("sand.png^mineral_iron.png");
/*
First pass: generate almost everything
*/
core::position2d<s32> pos_in_atlas(0,0);
for(u32 i=0; i<sourcelist.size(); i++)
{
std::string name = sourcelist[i];
/*video::IImage *img = driver->createImageFromFile(
porting::getDataPath(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, driver);
core::dimension2d<u32> dim = img2->getDimension();
// 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);
}
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;
}
/*
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++)
{
std::string name = sourcelist[i];
u32 id = m_name_to_id[name];
m_atlaspointer_cache[id].a.atlas = t;
}
/*
Write image to file so that it can be inspected
*/
driver->writeImageToFile(atlas_img,
porting::getDataPath("main_atlas.png").c_str());
}
video::IImage* generate_image_from_scratch(std::string name,
video::IVideoDriver* driver)
{
dstream<<"INFO: generate_image_from_scratch(): "
"name="<<name<<std::endl;
/*
Get the base image
*/
video::IImage *baseimg = NULL;
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;*/
/*
If separator was found, construct the base name and make the
base image using a recursive call
*/
std::string base_image_name;
if(last_separator_position != -1)
{
// 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, name="<<base_image_name<<std::endl;
baseimg = generate_image_from_scratch(base_image_name, driver);
}
/*
Parse out the last part of the name of the image and act
according to it
*/
std::string last_part_of_name = name.substr(last_separator_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, driver) == false)
{
dstream<<"INFO: generate_image_from_scratch(): "
"failed to generate \""<<last_part_of_name<<"\""
<<std::endl;
return NULL;
}
return baseimg;
}
bool generate_image(std::string part_of_name, video::IImage *& baseimg,
video::IVideoDriver* driver)
{
// Stuff starting with [ are special commands
if(part_of_name[0] != '[')
{
// A normal texture; load it from a file
std::string path = porting::getDataPath(part_of_name.c_str());
dstream<<"INFO: getTextureIdDirect(): Loading path \""<<path
<<"\""<<std::endl;
video::IImage *image = driver->createImageFromFile(path.c_str());
if(image == NULL)
{
dstream<<"WARNING: Could not load image \""<<part_of_name
<<"\" from path \""<<path<<"\""
<<" while building texture"<<std::endl;
return false;
}
// If base image is NULL, load as base.
if(baseimg == NULL)
{
dstream<<"INFO: Setting "<<part_of_name<<" as base"<<std::endl;
/*
Copy it this way to get an alpha channel.
Otherwise images with alpha cannot be blitted on
images that don't have alpha in the original file.
*/
core::dimension2d<u32> dim = image->getDimension();
baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
image->copyTo(baseimg);
image->drop();
}
// Else blit on base.
else
{
dstream<<"INFO: Blitting "<<part_of_name<<" on base"<<std::endl;
// Size of the copied area
core::dimension2d<u32> dim = image->getDimension();
//core::dimension2d<u32> dim(16,16);
// Position to copy the blitted to in the base image
core::position2d<s32> pos_to(0,0);
// Position to copy the blitted from in the blitted image
core::position2d<s32> pos_from(0,0);
// Blit
image->copyToWithAlpha(baseimg, pos_to,
core::rect<s32>(pos_from, dim),
video::SColor(255,255,255,255),
NULL);
// Drop image
image->drop();
}
}
else
{
// A special texture modification
dstream<<"INFO: getTextureIdDirect(): generating special "
<<"modification \""<<part_of_name<<"\""
<<std::endl;
if(part_of_name.substr(0,6) == "[crack")
{
if(baseimg == NULL)
{
dstream<<"WARNING: getTextureIdDirect(): baseimg==NULL "
<<"for part_of_name="<<part_of_name
<<", cancelling."<<std::endl;
return false;
}
u16 progression = stoi(part_of_name.substr(6));
// Size of the base image
core::dimension2d<u32> dim_base = baseimg->getDimension();
// Crack will be drawn at this size
u32 cracksize = 16;
// Size of the crack image
core::dimension2d<u32> dim_crack(cracksize,cracksize);
// Position to copy the crack from in the crack image
core::position2d<s32> pos_other(0, 16 * progression);
video::IImage *crackimage = driver->createImageFromFile(
porting::getDataPath("crack.png").c_str());
if(crackimage)
{
/*crackimage->copyToWithAlpha(baseimg, v2s32(0,0),
core::rect<s32>(pos_other, dim_base),
video::SColor(255,255,255,255),
NULL);*/
for(u32 y0=0; y0<dim_base.Height/dim_crack.Height; y0++)
for(u32 x0=0; x0<dim_base.Width/dim_crack.Width; x0++)
{
// Position to copy the crack to in the base image
core::position2d<s32> pos_base(x0*cracksize, y0*cracksize);
crackimage->copyToWithAlpha(baseimg, pos_base,
core::rect<s32>(pos_other, dim_crack),
video::SColor(255,255,255,255),
NULL);
}
crackimage->drop();
}
}
else if(part_of_name.substr(0,8) == "[combine")
{
// "[combine:16x128:0,0=stone.png:0,16=grass.png"
Strfnd sf(part_of_name);
sf.next(":");
u32 w0 = stoi(sf.next("x"));
u32 h0 = stoi(sf.next(":"));
dstream<<"INFO: combined w="<<w0<<" h="<<h0<<std::endl;
core::dimension2d<u32> dim(w0,h0);
baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
while(sf.atend() == false)
{
u32 x = stoi(sf.next(","));
u32 y = stoi(sf.next("="));
std::string filename = sf.next(":");
dstream<<"INFO: Adding \""<<filename
<<"\" to combined ("<<x<<","<<y<<")"
<<std::endl;
video::IImage *img = driver->createImageFromFile(
porting::getDataPath(filename.c_str()).c_str());
if(img)
{
core::dimension2d<u32> dim = img->getDimension();
dstream<<"INFO: Size "<<dim.Width
<<"x"<<dim.Height<<std::endl;
core::position2d<s32> pos_base(x, y);
video::IImage *img2 =
driver->createImage(video::ECF_A8R8G8B8, dim);
img->copyTo(img2);
img->drop();
img2->copyToWithAlpha(baseimg, pos_base,
core::rect<s32>(v2s32(0,0), dim),
video::SColor(255,255,255,255),
NULL);
img2->drop();
}
else
{
dstream<<"WARNING: img==NULL"<<std::endl;
}
}
}
else if(part_of_name.substr(0,12) == "[progressbar")
{
if(baseimg == NULL)
{
dstream<<"WARNING: getTextureIdDirect(): 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);
}
// "[noalpha:filename.png"
// Use an image without it's alpha channel
else if(part_of_name.substr(0,8) == "[noalpha")
{
if(baseimg != NULL)
{
dstream<<"WARNING: getTextureIdDirect(): 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 = porting::getDataPath(filename.c_str());
dstream<<"INFO: getTextureIdDirect(): Loading path \""<<path
<<"\""<<std::endl;
video::IImage *image = driver->createImageFromFile(path.c_str());
if(image == NULL)
{
dstream<<"WARNING: getTextureIdDirect(): 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();
}
}
else
{
dstream<<"WARNING: getTextureIdDirect(): Invalid "
" modification: \""<<part_of_name<<"\""<<std::endl;
}
}
return true;
}
void make_progressbar(float value, video::IImage *image)
{
if(image == NULL)
return;
core::dimension2d<u32> size = image->getDimension();
u32 barheight = 1;
u32 barpad_x = 1;
u32 barpad_y = 1;
u32 barwidth = size.Width - barpad_x*2;
v2u32 barpos(barpad_x, size.Height - barheight - barpad_y);
u32 barvalue_i = (u32)(((float)barwidth * value) + 0.5);
video::SColor active(255,255,0,0);
video::SColor inactive(255,0,0,0);
for(u32 x0=0; x0<barwidth; x0++)
{
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++)
{
image->setPixel(x,y, *c);
}
}
}
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