西风逍遥游
8dd21d3ea3
- Added support for the WebGPU backend in the CMake configuration, enabling builds for Emscripten and native Dawn. - Implemented conditional compilation for WebGPU-specific features, including shader management and file system handling. - Updated the build process to exclude unnecessary modules and dependencies for WebGPU, optimizing the engine for browser environments. - Enhanced the installation script to include WebGPU-related files and directories in the output. - Refactored existing modules to accommodate WebGPU, ensuring compatibility and performance improvements across the engine. - Introduced new compile options and configurations tailored for WebGPU builds, including handling of third-party libraries and assets.
87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
#include "webgpu/webplatform.h"
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#include <cstdio>
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#include <cstdlib>
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#include <string>
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#if defined(__EMSCRIPTEN__)
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#include <emscripten/emscripten.h>
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#endif
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namespace eve {
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namespace webgpu_platform {
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namespace {
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const char *envOr(const char *name, const char *fallback) {
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const char *v = std::getenv(name);
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return (v && *v) ? v : fallback;
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}
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} // namespace
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std::string getGameDirectory() {
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#if defined(__EMSCRIPTEN__)
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return "/game";
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#else
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return envOr("EVENGINE_WEBGPU_GAME_DIR", ".");
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#endif
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}
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std::string getAppdataDirectory() {
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#if defined(__EMSCRIPTEN__)
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return "/persist";
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#else
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const char *base = envOr("EVENGINE_WEBGPU_APPDATA", "appdata");
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return std::string(base);
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#endif
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}
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std::string getHomeDirectory() {
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#if defined(__EMSCRIPTEN__)
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return "/";
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#else
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return ".";
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#endif
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}
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std::string getExecutablePath() {
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#if defined(__EMSCRIPTEN__)
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return std::string("eve.html");
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#else
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return std::string("eve");
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#endif
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}
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bool openURL(const std::string &url) {
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#if defined(__EMSCRIPTEN__)
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// Let the browser open the URL in a new tab.
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char *js = new char[url.size() + 64];
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std::snprintf(js, url.size() + 64, "window.open('%s','_blank')", url.c_str());
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emscripten_run_script(js);
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delete[] js;
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return true;
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#else
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(void)url;
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return false;
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#endif
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}
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void vibrate() {
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#if defined(__EMSCRIPTEN__)
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emscripten_run_script("if (navigator.vibrate) navigator.vibrate(500);");
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#endif
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}
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bool hasBackgroundMusic() { return false; }
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void pumpEvents() {
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#if defined(__EMSCRIPTEN__)
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// Non-blocking browser event / callback drain. Works both on the main
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// thread and inside pthread workers (emscripten_sleep below is a busy
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// return to the browser, not a real sleep).
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emscripten_sleep(0);
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#endif
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}
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} // namespace webgpu_platform
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} // namespace eve
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