/*
* The ManaPlus Client
* Copyright (C) 2012-2014 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* 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
* 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, see .
*/
#include "main.h"
#ifdef USE_OPENGL
#include "resources/atlasmanager.h"
#include "configuration.h"
#include "render/surfacegraphics.h"
#include "utils/mathutils.h"
#include "utils/physfscheckutils.h"
#include "utils/physfsrwops.h"
#include "utils/sdlcheckutils.h"
#include "resources/atlasitem.h"
#include "resources/atlasresource.h"
#include "resources/dye.h"
#include "resources/imagehelper.h"
#include "resources/openglimagehelper.h"
#include "resources/resourcemanager.h"
#include "resources/textureatlas.h"
#include "debug.h"
AtlasManager::AtlasManager()
{
}
AtlasResource *AtlasManager::loadTextureAtlas(const std::string &name,
const StringVect &files)
{
std::vector atlases;
std::vector images;
AtlasResource *resource = new AtlasResource;
loadImages(files, images);
int maxSize = OpenGLImageHelper::getTextureSize();
#if !defined(ANDROID) && !defined(__APPLE__)
const int sz = config.getIntValue("textureSize");
if (maxSize > sz)
maxSize = sz;
#endif
// sorting images on atlases.
simpleSort(name, atlases, images, maxSize);
FOR_EACH (std::vector::iterator, it, atlases)
{
TextureAtlas *const atlas = *it;
if (!atlas)
continue;
// create atlas base on sorted images
SDL_Surface *const surface = createSDLAtlas(atlas);
if (!surface)
continue;
// debug save
// ImageWriter::writePNG(surface, settings.tempDir
// + "/atlas" + name + toString(k) + ".png");
// k ++;
// convert SDL images to OpenGL
convertAtlas(atlas);
// free SDL atlas surface
MSDL_FreeSurface(surface);
resource->atlases.push_back(atlas);
}
return resource;
}
void AtlasManager::loadImages(const StringVect &files,
std::vector &images)
{
ResourceManager *const resman = ResourceManager::getInstance();
FOR_EACH (StringVectCIter, it, files)
{
const std::string str = *it;
// check is image with same name already in cache
// and if yes, move it to deleted set
Resource *const res = resman->getTempResource(str);
if (res)
{
// increase counter because in moveToDeleted it will be decreased.
res->incRef();
resman->moveToDeleted(res);
}
std::string path = str;
const size_t p = path.find('|');
Dye *d = nullptr;
if (p != std::string::npos)
{
d = new Dye(path.substr(p + 1));
path = path.substr(0, p);
}
SDL_RWops *const rw = MPHYSFSRWOPS_openRead(path.c_str());
if (rw)
{
Image *const image = d ? surfaceImageHelper->load(rw, *d)
: surfaceImageHelper->load(rw);
if (image)
{
image->mIdPath = str;
#ifdef DEBUG_IMAGES
logger->log("set name %p, %s", static_cast(image),
image->mIdPath.c_str());
#endif
images.push_back(image);
}
}
delete d;
}
}
void AtlasManager::simpleSort(const std::string &restrict name,
std::vector &restrict atlases,
const std::vector &restrict images,
int size)
{
int x = 0;
int y = 0;
int tempHeight = 0;
TextureAtlas *atlas = new TextureAtlas();
std::vector::const_iterator it = images.begin();
const std::vector::const_iterator it_end = images.end();
for (it = images.begin(); it != it_end; ++ it)
{
const Image *const img = *it;
if (img)
{
atlas->name = std::string("atlas_").append(name).append(
"_").append(img->getIdPath());
break;
}
}
for (it = images.begin(); it != it_end; ++ it)
{
Image *const img = *it;
if (img)
{
AtlasItem *const item = new AtlasItem(img);
item->name = img->getIdPath();
// start next line
if (x + img->mBounds.w > size)
{
x = 0;
y += tempHeight;
tempHeight = 0;
}
// cant put image with this height
if (y + img->mBounds.h > size)
{
x = 0;
y = 0;
atlases.push_back(atlas);
atlas = new TextureAtlas();
atlas->name = std::string("atlas_").append(name).append(
"_").append(img->getIdPath());
}
if (img->mBounds.h > tempHeight)
tempHeight = img->mBounds.h;
item->x = x;
item->y = y;
atlas->items.push_back(item);
// continue put textures in line
x += img->mBounds.w;
if (x > atlas->width)
atlas->width = x;
if (y + img->mBounds.h > atlas->height)
atlas->height = y + img->mBounds.h;
}
}
if (!atlas->items.empty())
atlases.push_back(atlas);
else
delete atlas;
}
SDL_Surface *AtlasManager::createSDLAtlas(TextureAtlas *const atlas)
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
const unsigned int rmask = 0xff000000;
const unsigned int gmask = 0x00ff0000;
const unsigned int bmask = 0x0000ff00;
const unsigned int amask = 0x000000ff;
#else
const unsigned int rmask = 0x000000ff;
const unsigned int gmask = 0x0000ff00;
const unsigned int bmask = 0x00ff0000;
const unsigned int amask = 0xff000000;
#endif
// do not create atlas based on only one image
if (atlas->items.size() == 1)
return nullptr;
// using only power of two sizes.
atlas->width = powerOfTwo(atlas->width);
atlas->height = powerOfTwo(atlas->height);
const int width = atlas->width;
const int height = atlas->height;
// temp SDL surface for atlas
SDL_Surface *const surface = MSDL_CreateRGBSurface(SDL_SWSURFACE,
width, height, 32U, rmask, gmask, bmask, amask);
if (!surface)
return nullptr;
SurfaceGraphics *const graphics = new SurfaceGraphics();
graphics->setTarget(surface);
graphics->beginDraw();
// drawing SDL images to surface
FOR_EACH (std::vector::iterator, it, atlas->items)
{
AtlasItem *const item = *it;
Image *const image = item->image;
if (image)
{
if (image->mSDLSurface)
{
#ifdef USE_SDL2
SDL_SetSurfaceAlphaMod(image->mSDLSurface, SDL_ALPHA_OPAQUE);
SDL_SetSurfaceBlendMode(image->mSDLSurface,
SDL_BLENDMODE_NONE);
#else
SDL_SetAlpha(image->mSDLSurface, 0, SDL_ALPHA_OPAQUE);
#endif
graphics->drawImage(image, item->x, item->y);
}
}
}
delete graphics;
atlas->surface = surface;
return surface;
}
void AtlasManager::convertAtlas(TextureAtlas *const atlas)
{
// no check for null pointer in atlas because it was in caller
// convert surface to OpemGL image
atlas->atlasImage = imageHelper->load(atlas->surface);
Image *const image = atlas->atlasImage;
if (!image)
return;
image->mIdPath = atlas->name;
#ifdef DEBUG_IMAGES
logger->log("set name %p, %s", static_cast(image),
image->mIdPath.c_str());
#endif
image->incRef();
FOR_EACH (std::vector::iterator, it, atlas->items)
{
AtlasItem *const item = *it;
// delete SDL Image
delete item->image;
// store OpenGL image
item->image = image->getSubImage(item->x, item->y,
item->width, item->height);
Image *const image2 = item->image;
if (image2)
{
image2->mIdPath = item->name;
#ifdef DEBUG_IMAGES
logger->log("set name %p, %s", static_cast(image2),
image2->mIdPath.c_str());
#endif
image2->incRef();
}
}
}
void AtlasManager::injectToResources(const AtlasResource *const resource)
{
ResourceManager *const resman = ResourceManager::getInstance();
FOR_EACH (std::vector::const_iterator,
it, resource->atlases)
{
// add each atlas image to resources
TextureAtlas *const atlas = *it;
if (atlas)
{
Image *const image = atlas->atlasImage;
if (image)
resman->addResource(atlas->name, image);
FOR_EACH (std::vector::iterator, it2, atlas->items)
{
AtlasItem *const item = *it2;
if (!item)
continue;
// add each atlas sub image to resources
resman->addResource(item->name, item->image);
}
}
}
}
void AtlasManager::moveToDeleted(AtlasResource *const resource)
{
ResourceManager *const resman = ResourceManager::getInstance();
FOR_EACH (std::vector::iterator, it, resource->atlases)
{
// move each atlas image to deleted
TextureAtlas *const atlas = *it;
if (atlas)
{
Image *const image = atlas->atlasImage;
if (image)
{
// move each atlas image to deleted
resman->moveToDeleted(image);
}
FOR_EACH (std::vector::iterator, it2, atlas->items)
{
AtlasItem *const item = *it2;
if (item)
{
Image *const image2 = item->image;
if (image2)
{
// move each atlas sub image to deleted
resman->moveToDeleted(image2);
}
}
}
}
}
}
#endif