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Allow escaping of texture names when passed as an argument to a modifier
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sfan5
paramat
parent
9dd22aebc7
commit
b77cee146b
@ -263,7 +263,17 @@ Textures can be grouped together by enclosing them in `(` and `)`.
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Example: `cobble.png^(thing1.png^thing2.png)`
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A texture for `thing1.png^thing2.png` is created and the resulting
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texture is overlaid over `cobble.png`.
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texture is overlaid on top of `cobble.png`.
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### Escaping
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Modifiers that accept texture names (e.g. `[combine`) accept escaping to allow
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passing complex texture names as arguments. Escaping is done with backslash and
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is required for `^` and `:`.
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Example: `cobble.png^[lowpart:50:color.png\^[mask\:trans.png`
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The lower 50 percent of `color.png^[mask:trans.png` are overlaid
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on top of `cobble.png`.
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### Advanced texture modifiers
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@ -351,7 +361,7 @@ Example:
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default_stone.png^[transformFXR90
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#### `[inventorycube{<top>{<left>{<right>`
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`^` is replaced by `&` in texture names.
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Escaping does not apply here and `^` is replaced by `&` in texture names instead.
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Create an inventory cube texture using the side textures.
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@ -948,11 +948,10 @@ video::ITexture* TextureSource::generateTextureFromMesh(
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video::IImage* TextureSource::generateImage(const std::string &name)
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{
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/*
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Get the base image
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*/
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// Get the base image
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const char separator = '^';
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const char escape = '\\';
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const char paren_open = '(';
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const char paren_close = ')';
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@ -960,6 +959,8 @@ video::IImage* TextureSource::generateImage(const std::string &name)
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s32 last_separator_pos = -1;
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u8 paren_bal = 0;
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for (s32 i = name.size() - 1; i >= 0; i--) {
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if (i > 0 && name[i-1] == escape)
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continue;
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switch (name[i]) {
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case separator:
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if (paren_bal == 0) {
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@ -1028,10 +1029,12 @@ video::IImage* TextureSource::generateImage(const std::string &name)
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return NULL;
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}
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core::dimension2d<u32> dim = tmp->getDimension();
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if (!baseimg)
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baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
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if (baseimg) {
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blit_with_alpha(tmp, baseimg, v2s32(0, 0), v2s32(0, 0), dim);
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tmp->drop();
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} else {
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baseimg = tmp;
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}
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} else if (!generateImagePart(last_part_of_name, baseimg)) {
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// Generate image according to part of name
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errorstream << "generateImage(): "
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@ -1099,9 +1102,27 @@ video::IImage * Align2Npot2(video::IImage * image,
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#endif
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static std::string unescape_string(const std::string &str, const char esc = '\\')
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{
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std::string out;
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size_t pos = 0, cpos;
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out.reserve(str.size());
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while (1) {
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cpos = str.find_first_of(esc, pos);
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if (cpos == std::string::npos) {
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out += str.substr(pos);
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break;
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}
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out += str.substr(pos, cpos - pos) + str[cpos + 1];
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pos = cpos + 2;
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}
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return out;
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}
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bool TextureSource::generateImagePart(std::string part_of_name,
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video::IImage *& baseimg)
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{
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const char escape = '\\'; // same as in generateImage()
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video::IVideoDriver* driver = m_device->getVideoDriver();
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sanity_check(driver);
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@ -1251,7 +1272,7 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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}
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/*
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[combine:WxH:X,Y=filename:X,Y=filename2
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Creates a bigger texture from an amount of smaller ones
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Creates a bigger texture from any amount of smaller ones
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*/
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else if (str_starts_with(part_of_name, "[combine"))
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{
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@ -1259,7 +1280,6 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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sf.next(":");
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u32 w0 = stoi(sf.next("x"));
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u32 h0 = stoi(sf.next(":"));
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//infostream<<"combined w="<<w0<<" h="<<h0<<std::endl;
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core::dimension2d<u32> dim(w0,h0);
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if (baseimg == NULL) {
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baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
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@ -1268,11 +1288,11 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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while (sf.at_end() == false) {
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u32 x = stoi(sf.next(","));
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u32 y = stoi(sf.next("="));
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std::string filename = sf.next(":");
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std::string filename = unescape_string(sf.next_esc(":", escape), escape);
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infostream<<"Adding \""<<filename
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<<"\" to combined ("<<x<<","<<y<<")"
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<<std::endl;
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video::IImage *img = m_sourcecache.getOrLoad(filename, m_device);
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video::IImage *img = generateImage(filename);
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if (img) {
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core::dimension2d<u32> dim = img->getDimension();
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infostream<<"Size "<<dim.Width
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@ -1295,7 +1315,7 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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}
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}
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/*
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"[brighten"
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[brighten
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*/
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else if (str_starts_with(part_of_name, "[brighten"))
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{
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@ -1309,7 +1329,7 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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brighten(baseimg);
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}
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/*
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"[noalpha"
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[noalpha
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Make image completely opaque.
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Used for the leaves texture when in old leaves mode, so
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that the transparent parts don't look completely black
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@ -1336,7 +1356,7 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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}
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}
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/*
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"[makealpha:R,G,B"
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[makealpha:R,G,B
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Convert one color to transparent.
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*/
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else if (str_starts_with(part_of_name, "[makealpha:"))
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@ -1375,7 +1395,7 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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}
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}
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/*
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"[transformN"
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[transformN
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Rotates and/or flips the image.
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N can be a number (between 0 and 7) or a transform name.
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@ -1543,12 +1563,11 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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Strfnd sf(part_of_name);
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sf.next(":");
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u32 percent = stoi(sf.next(":"));
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std::string filename = sf.next(":");
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//infostream<<"power part "<<percent<<"%% of "<<filename<<std::endl;
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std::string filename = unescape_string(sf.next_esc(":", escape), escape);
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if (baseimg == NULL)
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baseimg = driver->createImage(video::ECF_A8R8G8B8, v2u32(16,16));
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video::IImage *img = m_sourcecache.getOrLoad(filename, m_device);
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video::IImage *img = generateImage(filename);
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if (img)
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{
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core::dimension2d<u32> dim = img->getDimension();
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@ -1628,9 +1647,9 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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}
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Strfnd sf(part_of_name);
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sf.next(":");
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std::string filename = sf.next(":");
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std::string filename = unescape_string(sf.next_esc(":", escape), escape);
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video::IImage *img = m_sourcecache.getOrLoad(filename, m_device);
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video::IImage *img = generateImage(filename);
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if (img) {
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apply_mask(img, baseimg, v2s32(0, 0), v2s32(0, 0),
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img->getDimension());
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@ -1673,6 +1692,10 @@ bool TextureSource::generateImagePart(std::string part_of_name,
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apply_colorize(baseimg, v2u32(0, 0), baseimg->getDimension(), color, ratio, keep_alpha);
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}
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/*
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[applyfiltersformesh
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Internal modifier
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*/
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else if (str_starts_with(part_of_name, "[applyfiltersformesh"))
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{
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// Apply the "clean transparent" filter, if configured.
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