fix(gpu): Ensure shader entry points are preserved in STRIP_ALL build

The  build was stripping all strings, including critical shader entry points ('vs_main', 'fs_main'), causing a runtime panic.

Introduced  for optional debug labels (which are stripped) and restored  to always return the string content for functional requirements.

1 files changed, 16 insertions, 4 deletions

diff --git a/src/gpu/gpu.cc b/src/gpu/gpu.cc
index 707ffe2..79498e3 100644
--- a/src/gpu/gpu.cc
+++ b/src/gpu/gpu.cc
@@ -26,7 +26,7 @@ static WGPURenderPipeline g_render_pipeline = nullptr;
 static WGPUBuffer g_uniform_buffer = nullptr;
 static WGPUBindGroup g_bind_group = nullptr;
 
-static WGPUStringView str_view(const char *str) {
+static WGPUStringView label_view(const char *str) {
 #ifndef STRIP_ALL
   if (!str) return {nullptr, 0};
   return {str, strlen(str)};
@@ -36,6 +36,11 @@ static WGPUStringView str_view(const char *str) {
 #endif
 }
 
+static WGPUStringView str_view(const char *str) {
+  if (!str) return {nullptr, 0};
+  return {str, strlen(str)};
+}
+
 #ifndef STRIP_ALL
 static void handle_request_adapter(WGPURequestAdapterStatus status,
                                    WGPUAdapter adapter, WGPUStringView message,
@@ -147,7 +152,7 @@ void gpu_init(GLFWwindow *window) {
   }
 
   WGPUDeviceDescriptor device_desc = {};
-  device_desc.label = str_view("Demo Device");
+  device_desc.label = label_view("Demo Device");
 #ifndef STRIP_ALL
   device_desc.uncapturedErrorCallbackInfo.callback = handle_device_error;
 #endif
@@ -173,13 +178,13 @@ void gpu_init(GLFWwindow *window) {
 
   WGPUShaderModuleDescriptor shader_module_desc = {};
   shader_module_desc.nextInChain = &wgsl_src.chain;
-  shader_module_desc.label = str_view("Demo Shader");
+  shader_module_desc.label = label_view("Demo Shader");
 
   WGPUShaderModule shader_module =
       wgpuDeviceCreateShaderModule(g_device, &shader_module_desc);
 
   WGPUBufferDescriptor uniform_buffer_desc = {};
-  uniform_buffer_desc.label = str_view("Uniform Buffer");
+  uniform_buffer_desc.label = label_view("Uniform Buffer");
   uniform_buffer_desc.usage = WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst;
   uniform_buffer_desc.size = sizeof(float) * 2;
   g_uniform_buffer = wgpuDeviceCreateBuffer(g_device, &uniform_buffer_desc);
@@ -191,6 +196,7 @@ void gpu_init(GLFWwindow *window) {
   bgl_entry.buffer.minBindingSize = sizeof(float) * 2;
 
   WGPUBindGroupLayoutDescriptor bgl_desc = {};
+  bgl_desc.label = label_view("Uniform Bind Group Layout");
   bgl_desc.entryCount = 1;
   bgl_desc.entries = &bgl_entry;
   WGPUBindGroupLayout bind_group_layout =
@@ -202,12 +208,14 @@ void gpu_init(GLFWwindow *window) {
   bg_entry.size = sizeof(float) * 2;
 
   WGPUBindGroupDescriptor bg_desc = {};
+  bg_desc.label = label_view("Uniform Bind Group");
   bg_desc.layout = bind_group_layout;
   bg_desc.entryCount = 1;
   bg_desc.entries = &bg_entry;
   g_bind_group = wgpuDeviceCreateBindGroup(g_device, &bg_desc);
 
   WGPUPipelineLayoutDescriptor pl_desc = {};
+  pl_desc.label = label_view("Render Pipeline Layout");
   pl_desc.bindGroupLayoutCount = 1;
   pl_desc.bindGroupLayouts = &bind_group_layout;
   WGPUPipelineLayout pipeline_layout =
@@ -224,6 +232,7 @@ void gpu_init(GLFWwindow *window) {
   fragment_state.targets = &color_target;
 
   WGPURenderPipelineDescriptor pipeline_desc = {};
+  pipeline_desc.label = label_view("Render Pipeline");
   pipeline_desc.layout = pipeline_layout;
   pipeline_desc.vertex.module = shader_module;
   pipeline_desc.vertex.entryPoint = str_view("vs_main");
@@ -263,6 +272,7 @@ void gpu_draw(float audio_peak, float aspect_ratio) {
   wgpuQueueWriteBuffer(g_queue, g_uniform_buffer, 0, &uniforms, sizeof(uniforms));
 
   WGPUCommandEncoderDescriptor encoder_desc = {};
+  encoder_desc.label = label_view("Command Encoder");
   WGPUCommandEncoder encoder =
       wgpuDeviceCreateCommandEncoder(g_device, &encoder_desc);
 
@@ -275,6 +285,7 @@ void gpu_draw(float audio_peak, float aspect_ratio) {
   color_attachment.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
 
   WGPURenderPassDescriptor render_pass_desc = {};
+  render_pass_desc.label = label_view("Render Pass");
   render_pass_desc.colorAttachmentCount = 1;
   render_pass_desc.colorAttachments = &color_attachment;
 
@@ -288,6 +299,7 @@ void gpu_draw(float audio_peak, float aspect_ratio) {
   wgpuRenderPassEncoderEnd(pass);
 
   WGPUCommandBufferDescriptor cmd_desc = {};
+  cmd_desc.label = label_view("Command Buffer");
   WGPUCommandBuffer commands = wgpuCommandEncoderFinish(encoder, &cmd_desc);
   wgpuQueueSubmit(g_queue, 1, &commands);
   wgpuSurfacePresent(g_surface);