refactor: Store const GpuContext& in Effect base class

- Changed Effect to store ctx_ reference instead of device_/queue_/format_
- Updated all 19 effect implementations to access ctx_.device/queue/format
- Simplified Effect constructor: ctx_(ctx) vs device_(ctx.device), queue_(ctx.queue), format_(ctx.format)
- All 28 tests pass, all targets build successfully

1 files changed, 4 insertions, 4 deletions

diff --git a/src/gpu/effects/fade_effect.cc b/src/gpu/effects/fade_effect.cc
index dce2360..8aad6b3 100644
--- a/src/gpu/effects/fade_effect.cc
+++ b/src/gpu/effects/fade_effect.cc
@@ -45,13 +45,13 @@ FadeEffect::FadeEffect(const GpuContext& ctx)
     }
   )";
 
-  pipeline_ = create_post_process_pipeline(device_, format_, shader_code);
+  pipeline_ = create_post_process_pipeline(ctx_.device, ctx_.format, shader_code);
   uniforms_ = gpu_create_buffer(
-      device_, 16, WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst);
+      ctx_.device, 16, WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst);
 }
 
 void FadeEffect::update_bind_group(WGPUTextureView input_view) {
-  pp_update_bind_group(device_, pipeline_, &bind_group_, input_view, uniforms_);
+  pp_update_bind_group(ctx_.device, pipeline_, &bind_group_, input_view, uniforms_);
 }
 
 void FadeEffect::render(WGPURenderPassEncoder pass, float time, float beat,
@@ -73,7 +73,7 @@ void FadeEffect::render(WGPURenderPassEncoder pass, float time, float beat,
   }
 
   float uniforms[4] = {fade_amount, 0.0f, 0.0f, 0.0f};
-  wgpuQueueWriteBuffer(queue_, uniforms_.buffer, 0, uniforms, sizeof(uniforms));
+  wgpuQueueWriteBuffer(ctx_.queue, uniforms_.buffer, 0, uniforms, sizeof(uniforms));
 
   wgpuRenderPassEncoderSetPipeline(pass, pipeline_);
   wgpuRenderPassEncoderSetBindGroup(pass, 0, bind_group_, 0, nullptr);