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WebGPU: backend components created and conditionally logged

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Initial groundwork in creating WebGPU backend components, namely
the instance, adapter, device, and queue.
If configured to do so, the backend will print out details about
these components.
The samples/hellotriangle.cpp was slightly modified to include a
webgpu option which allows for exercising the above, but does not
yet draw anything to the screen/window.
NOTE: This has only been sanity tested with hello triangle
on Mac OS and the Android emulator at this time, NOT IOS,
Windows, or Linux yet.
This commit is contained in:
Andy Hovingh
2025-03-02 11:47:26 -06:00
parent e3b7861aa2
commit c95f9ed7e0
14 changed files with 1111 additions and 106 deletions
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11
samples/hellotriangle.cpp
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@@ -77,7 +77,11 @@ static void printUsage(char* name) {
" --help, -h\n"
" Prints this message\n\n"
" --api, -a\n"
" Specify the backend API: opengl, vulkan, or metal\n"
" Specify the backend API: opengl, vulkan, metal, or webgpu\n"
" (note: webgpu is a no-op for now, printing backend\n"
" component info if FILAMENT_BACKEND_DEBUG_FLAG, \n"
" set at build time, includes the \n"
" FWGPU_PRINT_SYSTEM bit flag 0x2)\n"
);
const std::string from("HELLOTRIANGLE");
for (size_t pos = usage.find(from); pos != std::string::npos; pos = usage.find(from, pos)) {
@@ -109,8 +113,11 @@ static int handleCommandLineArguments(int argc, char* argv[], App* app) {
app->config.backend = Engine::Backend::VULKAN;
} else if (arg == "metal") {
app->config.backend = Engine::Backend::METAL;
} else if (arg == "webgpu") {
app->config.backend = Engine::Backend::WEBGPU;
} else {
std::cerr << "Unrecognized backend. Must be 'opengl'|'vulkan'|'metal'.\n";
std::cerr << "Unrecognized backend. Must be "
"'opengl'|'vulkan'|'metal'|'webgpu'.\n";
exit(1);
}
break;