mirror of https://github.com/minetest/minetest.git
419 lines
9.5 KiB
C++
419 lines
9.5 KiB
C++
#include "irrlichtwrapper.h"
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#include "constants.h"
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#include "string.h"
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#include "strfnd.h"
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IrrlichtWrapper::IrrlichtWrapper(IrrlichtDevice *device)
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{
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m_main_thread = get_current_thread_id();
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m_device_mutex.Init();
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m_device = device;
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}
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void IrrlichtWrapper::Run()
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{
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/*
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Fetch textures
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*/
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if(m_get_texture_queue.size() > 0)
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{
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GetRequest<std::string, video::ITexture*, u8, u8>
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request = m_get_texture_queue.pop();
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dstream<<"got texture request with key="
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<<request.key<<std::endl;
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GetResult<std::string, video::ITexture*, u8, u8>
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result;
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result.key = request.key;
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result.callers = request.callers;
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result.item = getTextureDirect(request.key);
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request.dest->push_back(result);
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}
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}
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video::ITexture* IrrlichtWrapper::getTexture(const std::string &spec)
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{
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if(spec == "")
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return NULL;
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video::ITexture *t = m_texturecache.get(spec);
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if(t != NULL)
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return t;
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if(get_current_thread_id() == m_main_thread)
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{
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dstream<<"Getting texture directly: spec="
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<<spec<<std::endl;
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t = getTextureDirect(spec);
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}
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else
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{
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// We're gonna ask the result to be put into here
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ResultQueue<std::string, video::ITexture*, u8, u8> result_queue;
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// Throw a request in
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m_get_texture_queue.add(spec, 0, 0, &result_queue);
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dstream<<"Waiting for texture from main thread: "
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<<spec<<std::endl;
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try
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{
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// Wait result for a second
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GetResult<std::string, video::ITexture*, u8, u8>
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result = result_queue.pop_front(1000);
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// Check that at least something worked OK
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assert(result.key == spec);
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t = result.item;
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}
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catch(ItemNotFoundException &e)
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{
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dstream<<"Waiting for texture timed out."<<std::endl;
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t = NULL;
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}
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}
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// Add to cache and return
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m_texturecache.set(spec, t);
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return t;
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}
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/*
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Non-thread-safe functions
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*/
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/*
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Texture modifier functions
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*/
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// blitted_name = eg. "mineral_coal.png"
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video::ITexture * make_blitname(const std::string &blitted_name,
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video::ITexture *original,
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const char *newname, video::IVideoDriver* driver)
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{
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if(original == NULL)
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return NULL;
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// Size of the base image
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core::dimension2d<u32> dim(16, 16);
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// Position to copy the blitted to in the base image
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core::position2d<s32> pos_base(0, 0);
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// Position to copy the blitted from in the blitted image
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core::position2d<s32> pos_other(0, 0);
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video::IImage *baseimage = driver->createImage(original, pos_base, dim);
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assert(baseimage);
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video::IImage *blittedimage = driver->createImageFromFile(porting::getDataPath(blitted_name.c_str()).c_str());
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assert(blittedimage);
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// Then copy the right part of blittedimage to baseimage
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blittedimage->copyToWithAlpha(baseimage, v2s32(0,0),
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core::rect<s32>(pos_other, dim),
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video::SColor(255,255,255,255),
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NULL);
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blittedimage->drop();
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// Create texture from resulting image
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video::ITexture *newtexture = driver->addTexture(newname, baseimage);
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baseimage->drop();
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return newtexture;
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}
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video::ITexture * make_crack(u16 progression, video::ITexture *original,
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const char *newname, video::IVideoDriver* driver)
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{
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if(original == NULL)
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return NULL;
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// Size of the base image
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core::dimension2d<u32> dim(16, 16);
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// Size of the crack image
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//core::dimension2d<u32> dim_crack(16, 16 * CRACK_ANIMATION_LENGTH);
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// Position to copy the crack to in the base image
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core::position2d<s32> pos_base(0, 0);
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// Position to copy the crack from in the crack image
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core::position2d<s32> pos_other(0, 16 * progression);
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video::IImage *baseimage = driver->createImage(original, pos_base, dim);
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assert(baseimage);
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video::IImage *crackimage = driver->createImageFromFile(porting::getDataPath("crack.png").c_str());
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assert(crackimage);
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// Then copy the right part of crackimage to baseimage
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crackimage->copyToWithAlpha(baseimage, v2s32(0,0),
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core::rect<s32>(pos_other, dim),
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video::SColor(255,255,255,255),
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NULL);
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crackimage->drop();
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// Create texture from resulting image
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video::ITexture *newtexture = driver->addTexture(newname, baseimage);
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baseimage->drop();
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return newtexture;
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}
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#if 0
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video::ITexture * make_sidegrass(video::ITexture *original,
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const char *newname, video::IVideoDriver* driver)
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{
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if(original == NULL)
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return NULL;
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// Size of the base image
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core::dimension2d<u32> dim(16, 16);
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// Position to copy the grass to in the base image
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core::position2d<s32> pos_base(0, 0);
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// Position to copy the grass from in the grass image
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core::position2d<s32> pos_other(0, 0);
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video::IImage *baseimage = driver->createImage(original, pos_base, dim);
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assert(baseimage);
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video::IImage *grassimage = driver->createImageFromFile(porting::getDataPath("grass_side.png").c_str());
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assert(grassimage);
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// Then copy the right part of grassimage to baseimage
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grassimage->copyToWithAlpha(baseimage, v2s32(0,0),
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core::rect<s32>(pos_other, dim),
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video::SColor(255,255,255,255),
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NULL);
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grassimage->drop();
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// Create texture from resulting image
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video::ITexture *newtexture = driver->addTexture(newname, baseimage);
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baseimage->drop();
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return newtexture;
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}
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#endif
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video::ITexture * make_progressbar(float value, video::ITexture *original,
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const char *newname, video::IVideoDriver* driver)
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{
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if(original == NULL)
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return NULL;
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core::position2d<s32> pos_base(0, 0);
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core::dimension2d<u32> dim = original->getOriginalSize();
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video::IImage *baseimage = driver->createImage(original, pos_base, dim);
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assert(baseimage);
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core::dimension2d<u32> size = baseimage->getDimension();
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u32 barheight = 1;
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u32 barpad_x = 1;
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u32 barpad_y = 1;
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u32 barwidth = size.Width - barpad_x*2;
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v2u32 barpos(barpad_x, size.Height - barheight - barpad_y);
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u32 barvalue_i = (u32)(((float)barwidth * value) + 0.5);
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video::SColor active(255,255,0,0);
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video::SColor inactive(255,0,0,0);
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for(u32 x0=0; x0<barwidth; x0++)
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{
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video::SColor *c;
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if(x0 < barvalue_i)
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c = &active;
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else
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c = &inactive;
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u32 x = x0 + barpos.X;
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for(u32 y=barpos.Y; y<barpos.Y+barheight; y++)
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{
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baseimage->setPixel(x,y, *c);
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}
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}
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video::ITexture *newtexture = driver->addTexture(newname, baseimage);
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baseimage->drop();
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return newtexture;
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}
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/*
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Texture fetcher/maker function, called always from the main thread
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*/
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video::ITexture* IrrlichtWrapper::getTextureDirect(const std::string &spec)
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{
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if(spec == "")
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return NULL;
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video::IVideoDriver* driver = m_device->getVideoDriver();
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/*
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Input (spec) is something like this:
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"/usr/share/minetest/stone.png[[mod:mineral0[[mod:crack3"
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*/
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video::ITexture* t = NULL;
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std::string modmagic = "[[mod:";
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Strfnd f(spec);
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std::string path = f.next(modmagic);
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t = driver->getTexture(path.c_str());
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std::string texture_name = path;
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while(f.atend() == false)
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{
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std::string mod = f.next(modmagic);
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texture_name += modmagic + mod;
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dstream<<"Making texture \""<<texture_name<<"\""<<std::endl;
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/*if(mod == "sidegrass")
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{
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t = make_sidegrass(t, texture_name.c_str(), driver);
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}
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else*/
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if(mod.substr(0, 9) == "blitname:")
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{
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//t = make_sidegrass(t, texture_name.c_str(), driver);
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t = make_blitname(mod.substr(9), t, texture_name.c_str(), driver);
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}
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else if(mod.substr(0,5) == "crack")
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{
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u16 prog = stoi(mod.substr(5));
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t = make_crack(prog, t, texture_name.c_str(), driver);
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}
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else if(mod.substr(0,11) == "progressbar")
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{
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float value = stof(mod.substr(11));
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t = make_progressbar(value, t, texture_name.c_str(), driver);
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}
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else
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{
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dstream<<"Invalid texture mod: \""<<mod<<"\""<<std::endl;
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}
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}
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return t;
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#if 0
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video::ITexture* t = NULL;
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const char *modmagic = "[[mod:";
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const s32 modmagic_len = 6;
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enum{
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READMODE_PATH,
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READMODE_MOD
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} readmode = READMODE_PATH;
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s32 specsize = spec.size()+1;
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char *strcache = (char*)malloc(specsize);
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assert(strcache);
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char *path = NULL;
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s32 length = 0;
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// Next index of modmagic to be found
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s32 modmagic_i = 0;
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u32 i=0;
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for(;;)
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{
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strcache[length++] = spec[i];
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bool got_modmagic = false;
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/*
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Check modmagic
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*/
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if(spec[i] == modmagic[modmagic_i])
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{
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modmagic_i++;
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if(modmagic_i == modmagic_len)
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{
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got_modmagic = true;
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modmagic_i = 0;
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length -= modmagic_len;
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}
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}
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else
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modmagic_i = 0;
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// Set i to be the length of read string
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i++;
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if(got_modmagic || i >= spec.size())
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{
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strcache[length] = '\0';
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// Now our string is in strcache, ending in \0
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if(readmode == READMODE_PATH)
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{
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// Get initial texture (strcache is path)
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assert(t == NULL);
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t = driver->getTexture(strcache);
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readmode = READMODE_MOD;
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path = strcache;
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strcache = (char*)malloc(specsize);
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assert(strcache);
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}
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else
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{
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dstream<<"Parsing mod \""<<strcache<<"\""<<std::endl;
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// The name of the result of adding this mod.
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// This doesn't have to be fast so std::string is used.
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std::string name(path);
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name += "[[mod:";
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name += strcache;
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dstream<<"Name of modded texture is \""<<name<<"\""
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<<std::endl;
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// Sidegrass
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if(strcmp(strcache, "sidegrass") == 0)
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{
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t = make_sidegrass(t, name.c_str(), driver);
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}
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else
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{
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dstream<<"Invalid texture mod"<<std::endl;
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}
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}
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length = 0;
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}
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if(i >= spec.size())
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break;
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}
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/*if(spec.mod == NULL)
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{
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dstream<<"IrrlichtWrapper::getTextureDirect: Loading texture "
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<<spec.path<<std::endl;
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return driver->getTexture(spec.path.c_str());
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}
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dstream<<"IrrlichtWrapper::getTextureDirect: Loading and modifying "
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"texture "<<spec.path<<" to make "<<spec.name<<std::endl;
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video::ITexture *base = driver->getTexture(spec.path.c_str());
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video::ITexture *result = spec.mod->make(base, spec.name.c_str(), driver);
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delete spec.mod;*/
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if(strcache)
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free(strcache);
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if(path)
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free(path);
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return t;
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#endif
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}
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