hyprcursor/libhyprcursor/hyprcursor.cpp
Vaxry 84203d8126
core: add nominal size support (#73)
Adds nominal size support
2024-12-21 20:31:12 +01:00

809 lines
28 KiB
C++

#include "hyprcursor/hyprcursor.hpp"
#include "internalSharedTypes.hpp"
#include "internalDefines.hpp"
#include <array>
#include <sstream>
#include <cstdio>
#include <filesystem>
#include <zip.h>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <librsvg/rsvg.h>
#include "manifest.hpp"
#include "meta.hpp"
#include "Log.hpp"
using namespace Hyprcursor;
static std::vector<std::string> getSystemThemeDirs() {
const auto envXdgData = std::getenv("XDG_DATA_DIRS");
std::vector<std::string> result;
if (envXdgData) {
std::stringstream envXdgStream(envXdgData);
std::string tmpStr;
while (getline(envXdgStream, tmpStr, ':'))
result.push_back((tmpStr + "/icons"));
} else
result = {"/usr/share/icons"};
return result;
}
const std::vector<std::string> systemThemeDirs = getSystemThemeDirs();
constexpr const std::array<const char*, 2> userThemeDirs = {"/.local/share/icons", "/.icons"};
//
static std::string themeNameFromEnv(PHYPRCURSORLOGFUNC logfn) {
const auto ENV = getenv("HYPRCURSOR_THEME");
if (!ENV) {
Debug::log(HC_LOG_INFO, logfn, "themeNameFromEnv: env unset");
return "";
}
return std::string{ENV};
}
static bool pathAccessible(const std::string& path) {
try {
if (!std::filesystem::exists(path))
return false;
} catch (std::exception& e) { return false; }
return true;
}
static bool themeAccessible(const std::string& path) {
return pathAccessible(path + "/manifest.hl") || pathAccessible(path + "/manifest.toml");
}
static std::string getFirstTheme(PHYPRCURSORLOGFUNC logfn) {
// try user directories first
const auto HOMEENV = getenv("HOME");
if (!HOMEENV)
return "";
const std::string HOME{HOMEENV};
for (auto& dir : userThemeDirs) {
const auto FULLPATH = HOME + dir;
if (!pathAccessible(FULLPATH)) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping path {} because it's inaccessible.", FULLPATH);
continue;
}
// loop over dirs and see if any has a manifest.hl
for (auto& themeDir : std::filesystem::directory_iterator(FULLPATH)) {
if (!themeDir.is_directory())
continue;
if (!themeAccessible(themeDir.path().string())) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping theme {} because it's inaccessible.", themeDir.path().string());
continue;
}
const auto MANIFESTPATH = themeDir.path().string() + "/manifest.";
if (std::filesystem::exists(MANIFESTPATH + "hl") || std::filesystem::exists(MANIFESTPATH + "toml")) {
Debug::log(HC_LOG_INFO, logfn, "getFirstTheme: found {}", themeDir.path().string());
return themeDir.path().stem().string();
}
}
}
for (auto& dir : systemThemeDirs) {
const auto FULLPATH = dir;
if (!pathAccessible(FULLPATH)) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping path {} because it's inaccessible.", FULLPATH);
continue;
}
// loop over dirs and see if any has a manifest.hl
for (auto& themeDir : std::filesystem::directory_iterator(FULLPATH)) {
if (!themeDir.is_directory())
continue;
if (!themeAccessible(themeDir.path().string())) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping theme {} because it's inaccessible.", themeDir.path().string());
continue;
}
const auto MANIFESTPATH = themeDir.path().string() + "/manifest.";
if (std::filesystem::exists(MANIFESTPATH + "hl") || std::filesystem::exists(MANIFESTPATH + "toml")) {
Debug::log(HC_LOG_INFO, logfn, "getFirstTheme: found {}", themeDir.path().string());
return themeDir.path().stem().string();
}
}
}
return "";
}
static std::string getFullPathForThemeName(const std::string& name, PHYPRCURSORLOGFUNC logfn, bool allowDefaultFallback) {
const auto HOMEENV = getenv("HOME");
if (!HOMEENV)
return "";
const std::string HOME{HOMEENV};
for (auto& dir : userThemeDirs) {
const auto FULLPATH = HOME + dir;
if (!pathAccessible(FULLPATH)) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping path {} because it's inaccessible.", FULLPATH);
continue;
}
// loop over dirs and see if any has a manifest.hl
for (auto& themeDir : std::filesystem::directory_iterator(FULLPATH)) {
if (!themeDir.is_directory())
continue;
if (!themeAccessible(themeDir.path().string())) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping theme {} because it's inaccessible.", themeDir.path().string());
continue;
}
const auto MANIFESTPATH = themeDir.path().string() + "/manifest";
if (allowDefaultFallback && name.empty()) {
if (std::filesystem::exists(MANIFESTPATH + ".hl") || std::filesystem::exists(MANIFESTPATH + ".toml")) {
Debug::log(HC_LOG_INFO, logfn, "getFullPathForThemeName: found {}", themeDir.path().string());
return std::filesystem::canonical(themeDir.path()).string();
}
continue;
}
CManifest manifest{MANIFESTPATH};
if (const auto R = manifest.parse(); R.has_value()) {
Debug::log(HC_LOG_ERR, logfn, "failed parsing Manifest of {}: {}", themeDir.path().string(), *R);
continue;
}
const std::string NAME = manifest.parsedData.name;
if (NAME != name && name != themeDir.path().stem().string())
continue;
Debug::log(HC_LOG_INFO, logfn, "getFullPathForThemeName: found {}", themeDir.path().string());
return std::filesystem::canonical(themeDir.path()).string();
}
}
for (auto& dir : systemThemeDirs) {
const auto FULLPATH = dir;
if (!pathAccessible(FULLPATH)) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping path {} because it's inaccessible.", FULLPATH);
continue;
}
// loop over dirs and see if any has a manifest.hl
for (auto& themeDir : std::filesystem::directory_iterator(FULLPATH)) {
if (!themeDir.is_directory())
continue;
if (!themeAccessible(themeDir.path().string())) {
Debug::log(HC_LOG_TRACE, logfn, "Skipping theme {} because it's inaccessible.", themeDir.path().string());
continue;
}
const auto MANIFESTPATH = themeDir.path().string() + "/manifest";
CManifest manifest{MANIFESTPATH};
if (const auto R = manifest.parse(); R.has_value()) {
Debug::log(HC_LOG_ERR, logfn, "failed parsing Manifest of {}: {}", themeDir.path().string(), *R);
continue;
}
const std::string NAME = manifest.parsedData.name;
if (NAME != name && name != themeDir.path().stem().string())
continue;
Debug::log(HC_LOG_INFO, logfn, "getFullPathForThemeName: found {}", themeDir.path().string());
return std::filesystem::canonical(themeDir.path()).string();
}
}
if (allowDefaultFallback && !name.empty()) { // try without name
Debug::log(HC_LOG_INFO, logfn, "getFullPathForThemeName: failed, trying without name of {}", name);
return getFullPathForThemeName("", logfn, allowDefaultFallback);
}
return "";
}
SManagerOptions::SManagerOptions() {
logFn = nullptr;
allowDefaultFallback = true;
}
CHyprcursorManager::CHyprcursorManager(const char* themeName_) {
init(themeName_);
}
CHyprcursorManager::CHyprcursorManager(const char* themeName_, PHYPRCURSORLOGFUNC fn) {
logFn = fn;
init(themeName_);
}
CHyprcursorManager::CHyprcursorManager(const char* themeName_, SManagerOptions options) {
logFn = options.logFn;
allowDefaultFallback = options.allowDefaultFallback;
init(themeName_);
}
void CHyprcursorManager::init(const char* themeName_) {
std::string themeName = themeName_ ? themeName_ : "";
if (allowDefaultFallback && themeName.empty()) {
// try reading from env
Debug::log(HC_LOG_INFO, logFn, "CHyprcursorManager: attempting to find theme from env");
themeName = themeNameFromEnv(logFn);
}
if (allowDefaultFallback && themeName.empty()) {
// try finding first, in the hierarchy
Debug::log(HC_LOG_INFO, logFn, "CHyprcursorManager: attempting to find any theme");
themeName = getFirstTheme(logFn);
}
if (themeName.empty()) {
// holy shit we're done
Debug::log(HC_LOG_INFO, logFn, "CHyprcursorManager: no themes matched");
return;
}
// initialize theme
impl = new CHyprcursorImplementation(this, logFn);
impl->themeName = themeName;
impl->themeFullDir = getFullPathForThemeName(themeName, logFn, allowDefaultFallback);
if (impl->themeFullDir.empty())
return;
Debug::log(HC_LOG_INFO, logFn, "Found theme {} at {}\n", impl->themeName, impl->themeFullDir);
const auto LOADSTATUS = impl->loadTheme();
if (LOADSTATUS.has_value()) {
Debug::log(HC_LOG_ERR, logFn, "Theme failed to load with {}\n", LOADSTATUS.value());
return;
}
if (impl->theme.shapes.empty()) {
Debug::log(HC_LOG_ERR, logFn, "Theme {} has no valid cursor shapes\n", impl->themeName);
return;
}
finalizedAndValid = true;
}
CHyprcursorManager::~CHyprcursorManager() {
if (impl)
delete impl;
}
bool CHyprcursorManager::valid() {
return finalizedAndValid;
}
SCursorImageData** CHyprcursorManager::getShapesC(int& outSize, const char* shape_, const SCursorStyleInfo& info) {
if (!shape_) {
Debug::log(HC_LOG_ERR, logFn, "getShapesC: shape of nullptr is invalid");
return nullptr;
}
std::string REQUESTEDSHAPE = shape_;
std::vector<SLoadedCursorImage*> resultingImages;
float hotX = 0, hotY = 0;
for (auto& shape : impl->theme.shapes) {
if (REQUESTEDSHAPE != shape->directory && std::find(shape->overrides.begin(), shape->overrides.end(), REQUESTEDSHAPE) == shape->overrides.end())
continue;
const int PIXELSIDE = std::round(info.size / shape->nominalSize);
hotX = shape->hotspotX;
hotY = shape->hotspotY;
// matched :)
bool foundAny = false;
for (auto& image : impl->loadedShapes[shape.get()].images) {
if (image->side != PIXELSIDE)
continue;
// found size
resultingImages.push_back(image.get());
foundAny = true;
}
if (foundAny || shape->shapeType == SHAPE_SVG /* something broke, this shouldn't happen with svg */)
break;
// if we get here, means loadThemeStyle wasn't called most likely. If resize algo is specified, this is an error.
if (shape->resizeAlgo != HC_RESIZE_NONE) {
Debug::log(HC_LOG_ERR, logFn, "getSurfaceFor didn't match a size?");
return nullptr;
}
// find nearest
int leader = 13371337;
for (auto& image : impl->loadedShapes[shape.get()].images) {
if (std::abs((int)(image->side - PIXELSIDE)) > std::abs((int)(leader - PIXELSIDE)))
continue;
leader = image->side;
}
if (leader == 13371337) { // ???
Debug::log(HC_LOG_ERR, logFn, "getSurfaceFor didn't match any nearest size?");
return nullptr;
}
// we found nearest size
for (auto& image : impl->loadedShapes[shape.get()].images) {
if (image->side != leader)
continue;
// found size
resultingImages.push_back(image.get());
foundAny = true;
}
if (foundAny)
break;
Debug::log(HC_LOG_ERR, logFn, "getSurfaceFor didn't match any nearest size (2)?");
return nullptr;
}
// alloc and return what we need
SCursorImageData** data = (SCursorImageData**)malloc(sizeof(SCursorImageData*) * resultingImages.size());
for (size_t i = 0; i < resultingImages.size(); ++i) {
data[i] = (SCursorImageData*)malloc(sizeof(SCursorImageData));
data[i]->delay = resultingImages[i]->delay;
data[i]->size = resultingImages[i]->side;
data[i]->surface = resultingImages[i]->cairoSurface;
data[i]->hotspotX = std::round(hotX * (float)data[i]->size);
data[i]->hotspotY = std::round(hotY * (float)data[i]->size);
}
outSize = resultingImages.size();
Debug::log(HC_LOG_INFO, logFn, "getShapesC: found {} images for {}", outSize, shape_);
return data;
}
SCursorRawShapeDataC* CHyprcursorManager::getRawShapeDataC(const char* shape_) {
if (!shape_) {
Debug::log(HC_LOG_ERR, logFn, "getShapeDataC: shape of nullptr is invalid");
return nullptr;
}
const std::string SHAPE = shape_;
SCursorRawShapeDataC* data = new SCursorRawShapeDataC;
std::vector<SLoadedCursorImage*> resultingImages;
data->overridenBy = nullptr;
data->images = nullptr;
data->len = 0;
data->hotspotX = 0.f;
data->hotspotY = 0.F;
data->nominalSize = 1.F;
data->resizeAlgo = eHyprcursorResizeAlgo::HC_RESIZE_NONE;
data->type = eHyprcursorDataType::HC_DATA_PNG;
for (auto& shape : impl->theme.shapes) {
// if it's overridden just return the override
if (const auto IT = std::find_if(shape->overrides.begin(), shape->overrides.end(), [&](const auto& e) { return e == SHAPE && SHAPE != shape->directory; });
IT != shape->overrides.end()) {
data->overridenBy = strdup(shape->directory.c_str());
return data;
}
}
for (auto& shape : impl->theme.shapes) {
if (shape->directory != SHAPE)
continue;
if (!impl->loadedShapes.contains(shape.get()))
continue; // ??
// found it
for (auto& i : impl->loadedShapes[shape.get()].images) {
resultingImages.push_back(i.get());
}
data->hotspotX = shape->hotspotX;
data->hotspotY = shape->hotspotY;
data->nominalSize = shape->nominalSize;
data->type = shape->shapeType == SHAPE_PNG ? HC_DATA_PNG : HC_DATA_SVG;
break;
}
data->len = resultingImages.size();
data->images = new SCursorRawShapeImageC[data->len];
for (size_t i = 0; i < data->len; ++i) {
data->images[i].data = resultingImages[i]->data;
data->images[i].len = resultingImages[i]->dataLen;
data->images[i].size = resultingImages[i]->side;
data->images[i].delay = resultingImages[i]->delay;
}
return data;
}
bool CHyprcursorManager::loadThemeStyle(const SCursorStyleInfo& info) {
Debug::log(HC_LOG_INFO, logFn, "loadThemeStyle: loading for size {}", info.size);
for (auto& shape : impl->theme.shapes) {
if (shape->resizeAlgo == HC_RESIZE_NONE && shape->shapeType != SHAPE_SVG) {
// don't resample NONE style cursors
Debug::log(HC_LOG_TRACE, logFn, "loadThemeStyle: ignoring {}", shape->directory);
continue;
}
bool sizeFound = false;
if (shape->shapeType == SHAPE_PNG) {
const int IDEALSIDE = std::round(info.size / shape->nominalSize);
for (auto& image : impl->loadedShapes[shape.get()].images) {
if (image->side != IDEALSIDE)
continue;
sizeFound = true;
break;
}
// size wasn't found, let's resample.
if (sizeFound)
continue;
SLoadedCursorImage* leader = nullptr;
int leaderVal = 1000000;
for (auto& image : impl->loadedShapes[shape.get()].images) {
if (image->side < IDEALSIDE)
continue;
if (image->side > leaderVal)
continue;
leaderVal = image->side;
leader = image.get();
}
if (!leader) {
for (auto& image : impl->loadedShapes[shape.get()].images) {
if (std::abs((int)(image->side - IDEALSIDE)) > leaderVal)
continue;
leaderVal = image->side;
leader = image.get();
}
}
if (!leader) {
Debug::log(HC_LOG_ERR, logFn, "Resampling failed to find a candidate???");
return false;
}
const auto FRAMES = impl->getFramesFor(shape.get(), leader->side);
Debug::log(HC_LOG_TRACE, logFn, "loadThemeStyle: png shape {} has {} frames", shape->directory, FRAMES.size());
const int PIXELSIDE = std::round(leader->side / shape->nominalSize);
Debug::log(HC_LOG_TRACE, logFn, "loadThemeStyle: png shape has nominal {:.2f}, pixel size will be {}x", shape->nominalSize, PIXELSIDE);
for (auto& f : FRAMES) {
auto& newImage = impl->loadedShapes[shape.get()].images.emplace_back(std::make_unique<SLoadedCursorImage>());
newImage->artificial = true;
newImage->side = PIXELSIDE;
newImage->artificialData = new char[PIXELSIDE * PIXELSIDE * 4];
newImage->cairoSurface = cairo_image_surface_create_for_data((unsigned char*)newImage->artificialData, CAIRO_FORMAT_ARGB32, PIXELSIDE, PIXELSIDE, PIXELSIDE * 4);
newImage->delay = f->delay;
const auto PCAIRO = cairo_create(newImage->cairoSurface);
cairo_set_antialias(PCAIRO, shape->resizeAlgo == HC_RESIZE_BILINEAR ? CAIRO_ANTIALIAS_GOOD : CAIRO_ANTIALIAS_NONE);
cairo_save(PCAIRO);
cairo_set_operator(PCAIRO, CAIRO_OPERATOR_CLEAR);
cairo_paint(PCAIRO);
cairo_restore(PCAIRO);
const auto PTN = cairo_pattern_create_for_surface(f->cairoSurface);
cairo_pattern_set_extend(PTN, CAIRO_EXTEND_NONE);
const float scale = PIXELSIDE / (float)f->side;
cairo_scale(PCAIRO, scale, scale);
cairo_pattern_set_filter(PTN, shape->resizeAlgo == HC_RESIZE_BILINEAR ? CAIRO_FILTER_GOOD : CAIRO_FILTER_NEAREST);
cairo_set_source(PCAIRO, PTN);
cairo_rectangle(PCAIRO, 0, 0, PIXELSIDE, PIXELSIDE);
cairo_fill(PCAIRO);
cairo_surface_flush(newImage->cairoSurface);
cairo_pattern_destroy(PTN);
cairo_destroy(PCAIRO);
}
} else if (shape->shapeType == SHAPE_SVG) {
const auto FRAMES = impl->getFramesFor(shape.get(), 0);
Debug::log(HC_LOG_TRACE, logFn, "loadThemeStyle: svg shape {} has {} frames", shape->directory, FRAMES.size());
const int PIXELSIDE = std::round(info.size / shape->nominalSize);
Debug::log(HC_LOG_TRACE, logFn, "loadThemeStyle: svg shape has nominal {:.2f}, pixel size will be {}x", shape->nominalSize, PIXELSIDE);
for (auto& f : FRAMES) {
auto& newImage = impl->loadedShapes[shape.get()].images.emplace_back(std::make_unique<SLoadedCursorImage>());
newImage->artificial = true;
newImage->side = PIXELSIDE;
newImage->artificialData = new char[PIXELSIDE * PIXELSIDE * 4];
newImage->cairoSurface = cairo_image_surface_create_for_data((unsigned char*)newImage->artificialData, CAIRO_FORMAT_ARGB32, PIXELSIDE, PIXELSIDE, PIXELSIDE * 4);
newImage->delay = f->delay;
const auto PCAIRO = cairo_create(newImage->cairoSurface);
cairo_save(PCAIRO);
cairo_set_operator(PCAIRO, CAIRO_OPERATOR_CLEAR);
cairo_paint(PCAIRO);
cairo_restore(PCAIRO);
GError* error = nullptr;
RsvgHandle* handle = rsvg_handle_new_from_data((unsigned char*)f->data, f->dataLen, &error);
if (!handle) {
Debug::log(HC_LOG_ERR, logFn, "Failed reading svg: {}", error->message);
return false;
}
RsvgRectangle rect = {0, 0, (double)PIXELSIDE, (double)PIXELSIDE};
if (!rsvg_handle_render_document(handle, PCAIRO, &rect, &error)) {
Debug::log(HC_LOG_ERR, logFn, "Failed rendering svg: {}", error->message);
return false;
}
// done
cairo_surface_flush(newImage->cairoSurface);
cairo_destroy(PCAIRO);
}
} else {
Debug::log(HC_LOG_ERR, logFn, "Invalid shapetype in loadThemeStyle");
return false;
}
}
return true;
}
void CHyprcursorManager::cursorSurfaceStyleDone(const SCursorStyleInfo& info) {
for (auto& shape : impl->theme.shapes) {
if (shape->resizeAlgo == HC_RESIZE_NONE && shape->shapeType != SHAPE_SVG)
continue;
std::erase_if(impl->loadedShapes[shape.get()].images, [info, &shape](const auto& e) {
const bool isSVG = shape->shapeType == SHAPE_SVG;
const bool isArtificial = e->artificial;
// clean artificial rasters made for this
if (isArtificial && e->side == std::round(info.size / shape->nominalSize))
return true;
// clean invalid non-svg rasters
if (!isSVG && e->side == 0)
return true;
return false;
});
}
}
void CHyprcursorManager::registerLoggingFunction(PHYPRCURSORLOGFUNC fn) {
logFn = fn;
}
/*
PNG reading
*/
static cairo_status_t readPNG(void* data, unsigned char* output, unsigned int len) {
const auto DATA = (SLoadedCursorImage*)data;
if (DATA->readNeedle >= DATA->dataLen)
return CAIRO_STATUS_READ_ERROR;
if (!DATA->data)
return CAIRO_STATUS_READ_ERROR;
size_t toRead = len > DATA->dataLen - DATA->readNeedle ? DATA->dataLen - DATA->readNeedle : len;
std::memcpy(output, (uint8_t*)DATA->data + DATA->readNeedle, toRead);
DATA->readNeedle += toRead;
return CAIRO_STATUS_SUCCESS;
}
/*
General
*/
std::optional<std::string> CHyprcursorImplementation::loadTheme() {
if (!themeAccessible(themeFullDir))
return "Theme inaccessible";
// load manifest
CManifest manifest(themeFullDir + "/manifest");
const auto PARSERESULT = manifest.parse();
if (PARSERESULT.has_value())
return "couldn't parse manifest: " + *PARSERESULT;
const std::string CURSORSSUBDIR = manifest.parsedData.cursorsDirectory;
const std::string CURSORDIR = themeFullDir + "/" + CURSORSSUBDIR;
if (CURSORSSUBDIR.empty() || !std::filesystem::exists(CURSORDIR))
return "loadTheme: cursors_directory missing or empty";
for (auto& cursor : std::filesystem::directory_iterator(CURSORDIR)) {
if (!cursor.is_regular_file()) {
Debug::log(HC_LOG_TRACE, logFn, "loadTheme: skipping {}", cursor.path().string());
continue;
}
auto& SHAPE = theme.shapes.emplace_back(std::make_unique<SCursorShape>());
auto& LOADEDSHAPE = loadedShapes[SHAPE.get()];
// extract zip to raw data.
int errp = 0;
zip_t* zip = zip_open(cursor.path().string().c_str(), ZIP_RDONLY, &errp);
zip_int64_t index = zip_name_locate(zip, "meta.hl", ZIP_FL_ENC_GUESS);
bool metaIsHL = true;
if (index == -1) {
index = zip_name_locate(zip, "meta.toml", ZIP_FL_ENC_GUESS);
metaIsHL = false;
}
if (index == -1)
return "cursor" + cursor.path().string() + "failed to load meta";
zip_file_t* meta_file = zip_fopen_index(zip, index, ZIP_FL_UNCHANGED);
char* buffer = new char[1024 * 1024]; /* 1MB should be more than enough */
int readBytes = zip_fread(meta_file, buffer, 1024 * 1024 - 1);
zip_fclose(meta_file);
if (readBytes < 0) {
delete[] buffer;
return "cursor" + cursor.path().string() + "failed to read meta";
}
buffer[readBytes] = '\0';
CMeta meta{buffer, metaIsHL};
delete[] buffer;
const auto METAPARSERESULT = meta.parse();
if (METAPARSERESULT.has_value())
return "cursor" + cursor.path().string() + "failed to parse meta: " + *METAPARSERESULT;
for (auto& i : meta.parsedData.definedSizes) {
SHAPE->images.push_back(SCursorImage{i.file, i.size, i.delayMs});
}
SHAPE->overrides = meta.parsedData.overrides;
zip_stat_t sb;
zip_stat_init(&sb);
for (auto& i : SHAPE->images) {
if (SHAPE->shapeType == SHAPE_INVALID) {
if (i.filename.ends_with(".svg"))
SHAPE->shapeType = SHAPE_SVG;
else if (i.filename.ends_with(".png"))
SHAPE->shapeType = SHAPE_PNG;
else {
Debug::log(HC_LOG_WARN, logFn, "WARNING: image {} has no known extension, assuming png.", i.filename);
SHAPE->shapeType = SHAPE_PNG;
}
} else {
if (SHAPE->shapeType == SHAPE_SVG && !i.filename.ends_with(".svg"))
return "meta invalid: cannot add .png files to an svg shape";
else if (SHAPE->shapeType == SHAPE_PNG && i.filename.ends_with(".svg"))
return "meta invalid: cannot add .svg files to a png shape";
}
// load image
Debug::log(HC_LOG_TRACE, logFn, "Loading {} for shape {}", i.filename, cursor.path().stem().string());
auto* IMAGE = LOADEDSHAPE.images.emplace_back(std::make_unique<SLoadedCursorImage>()).get();
IMAGE->side = SHAPE->shapeType == SHAPE_SVG ? 0 : i.size;
IMAGE->delay = i.delay;
IMAGE->isSVG = SHAPE->shapeType == SHAPE_SVG;
index = zip_name_locate(zip, i.filename.c_str(), ZIP_FL_ENC_GUESS);
if (index == -1)
return "cursor" + cursor.path().string() + "failed to load image_file";
// read from zip
zip_file_t* image_file = zip_fopen_index(zip, index, ZIP_FL_UNCHANGED);
zip_stat_index(zip, index, ZIP_FL_UNCHANGED, &sb);
if (sb.valid & ZIP_STAT_SIZE) {
IMAGE->data = new char[sb.size + 1];
IMAGE->dataLen = sb.size + 1;
} else {
IMAGE->data = new char[1024 * 1024]; /* 1MB should be more than enough, again. This probably should be in the spec. */
IMAGE->dataLen = 1024 * 1024;
}
IMAGE->dataLen = zip_fread(image_file, IMAGE->data, IMAGE->dataLen - 1);
zip_fclose(image_file);
Debug::log(HC_LOG_TRACE, logFn, "Cairo: set up surface read");
if (SHAPE->shapeType == SHAPE_PNG) {
IMAGE->cairoSurface = cairo_image_surface_create_from_png_stream(::readPNG, IMAGE);
if (const auto STATUS = cairo_surface_status(IMAGE->cairoSurface); STATUS != CAIRO_STATUS_SUCCESS) {
delete[] (char*)IMAGE->data;
IMAGE->data = nullptr;
return "Failed reading cairoSurface, status " + std::to_string((int)STATUS);
}
} else {
Debug::log(HC_LOG_TRACE, logFn, "Skipping cairo load for a svg surface");
}
}
if (SHAPE->images.empty())
return "meta invalid: no images for shape " + cursor.path().stem().string();
SHAPE->directory = cursor.path().stem().string();
SHAPE->hotspotX = meta.parsedData.hotspotX;
SHAPE->hotspotY = meta.parsedData.hotspotY;
SHAPE->nominalSize = meta.parsedData.nominalSize;
SHAPE->resizeAlgo = stringToAlgo(meta.parsedData.resizeAlgo);
zip_discard(zip);
}
return {};
}
std::vector<SLoadedCursorImage*> CHyprcursorImplementation::getFramesFor(SCursorShape* shape, int size) {
std::vector<SLoadedCursorImage*> frames;
for (auto& image : loadedShapes[shape].images) {
if (!image->isSVG && image->side != size)
continue;
if (image->artificial)
continue;
frames.push_back(image.get());
}
return frames;
}