refactor: Bundle GPU context into GpuContext struct

- Created GpuContext struct {device, queue, format}
- Updated Effect/PostProcessEffect to take const GpuContext&
- Updated all 19 effect implementations
- Updated MainSequence.init() and LoadTimeline() signatures
- Updated generated timeline files
- Updated all test files
- Added gpu_get_context() accessor and fixture.ctx() helper

Fixes test_mesh.cc compilation error from g_device/g_queue/g_format conflicts.
All targets build successfully.

2 files changed, 60 insertions, 60 deletions

diff --git a/src/generated/test_demo_timeline.cc b/src/generated/test_demo_timeline.cc
index 75c5fe6..8b80d15 100644
--- a/src/generated/test_demo_timeline.cc
+++ b/src/generated/test_demo_timeline.cc
@@ -6,10 +6,10 @@ float GetDemoDuration() {
   return 16.000000f;
 }
 
-void LoadTimeline(MainSequence& main_seq, WGPUDevice device, WGPUQueue queue, WGPUTextureFormat format) {
+void LoadTimeline(MainSequence& main_seq, const GpuContext& ctx) {
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<FlashEffect>(device, queue, format), 0.0f, 16.0f, 0);
+    seq->add_effect(std::make_shared<FlashEffect>(ctx), 0.0f, 16.0f, 0);
     main_seq.add_sequence(seq, 0.0f, 0);
   }
 }
diff --git a/src/generated/timeline.cc b/src/generated/timeline.cc
index cd03b77..1facf8f 100644
--- a/src/generated/timeline.cc
+++ b/src/generated/timeline.cc
@@ -6,118 +6,118 @@ float GetDemoDuration() {
   return 32.500000f;
 }
 
-void LoadTimeline(MainSequence& main_seq, WGPUDevice device, WGPUQueue queue, WGPUTextureFormat format) {
+void LoadTimeline(MainSequence& main_seq, const GpuContext& ctx) {
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<FlashCubeEffect>(device, queue, format), .2f, 1.500000f, -1);
-    seq->add_effect(std::make_shared<FlashEffect>(device, queue, format), 0.0f, 1.f, 0);
-    seq->add_effect(std::make_shared<FadeEffect>(device, queue, format), 0.1f, 1.f, 1);
-    seq->add_effect(std::make_shared<SolarizeEffect>(device, queue, format), 0.000000f, 2.000000f, 2);
+    seq->add_effect(std::make_shared<FlashCubeEffect>(ctx), .2f, 1.500000f, -1);
+    seq->add_effect(std::make_shared<FlashEffect>(ctx), 0.0f, 1.f, 0);
+    seq->add_effect(std::make_shared<FadeEffect>(ctx), 0.1f, 1.f, 1);
+    seq->add_effect(std::make_shared<SolarizeEffect>(ctx), 0.000000f, 2.000000f, 2);
     main_seq.add_sequence(seq, 0.000000f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<FlashCubeEffect>(device, queue, format), 0.1f, 3.f, -1);
-    seq->add_effect(std::make_shared<FlashEffect>(device, queue, format), 0.0f, 0.2f, 0);
+    seq->add_effect(std::make_shared<FlashCubeEffect>(ctx), 0.1f, 3.f, -1);
+    seq->add_effect(std::make_shared<FlashEffect>(ctx), 0.0f, 0.2f, 0);
     main_seq.add_sequence(seq, 2.000000f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.0f, .2f, 0);
-    seq->add_effect(std::make_shared<FadeEffect>(device, queue, format), 0.1f, 1.0f, 1);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.0f, .2f, 0);
+    seq->add_effect(std::make_shared<FadeEffect>(ctx), 0.1f, 1.0f, 1);
     main_seq.add_sequence(seq, 3.500000f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ThemeModulationEffect>(device, queue, format), 0.000000f, 2.000000f, 0);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.000000f, 8.000000f, 1);
-    seq->add_effect(std::make_shared<ChromaAberrationEffect>(device, queue, format), 0.000000f, 8.000000f, 2);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 3);
+    seq->add_effect(std::make_shared<ThemeModulationEffect>(ctx), 0.000000f, 2.000000f, 0);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.000000f, 8.000000f, 1);
+    seq->add_effect(std::make_shared<ChromaAberrationEffect>(ctx), 0.000000f, 8.000000f, 2);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 3);
     main_seq.add_sequence(seq, 16.000000f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ThemeModulationEffect>(device, queue, format), 0.000000f, 2.000000f, 0);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.2f, 2.0f, 1);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 2);
-    seq->add_effect(std::make_shared<SolarizeEffect>(device, queue, format), 0.000000f, 1.000000f, 3);
+    seq->add_effect(std::make_shared<ThemeModulationEffect>(ctx), 0.000000f, 2.000000f, 0);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.2f, 2.0f, 1);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 2);
+    seq->add_effect(std::make_shared<SolarizeEffect>(ctx), 0.000000f, 1.000000f, 3);
     main_seq.add_sequence(seq, 24.000000f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ThemeModulationEffect>(device, queue, format), 0.000000f, 4.000000f, 0);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.2f, 2.0f, 0);
-    seq->add_effect(std::make_shared<Hybrid3DEffect>(device, queue, format), 0.000000f, 2.000000f, 1);
-    seq->add_effect(std::make_shared<ParticleSprayEffect>(device, queue, format), 0.000000f, 4.000000f, 2);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.000000f, 8.000000f, 3);
-    seq->add_effect(std::make_shared<ChromaAberrationEffect>(device, queue, format), 0.000000f, 8.000000f, 4);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 5);
+    seq->add_effect(std::make_shared<ThemeModulationEffect>(ctx), 0.000000f, 4.000000f, 0);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.2f, 2.0f, 0);
+    seq->add_effect(std::make_shared<Hybrid3DEffect>(ctx), 0.000000f, 2.000000f, 1);
+    seq->add_effect(std::make_shared<ParticleSprayEffect>(ctx), 0.000000f, 4.000000f, 2);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.000000f, 8.000000f, 3);
+    seq->add_effect(std::make_shared<ChromaAberrationEffect>(ctx), 0.000000f, 8.000000f, 4);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 5);
     main_seq.add_sequence(seq, 28.000000f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ThemeModulationEffect>(device, queue, format), 0.000000f, 1.500000f, 0);
-    seq->add_effect(std::make_shared<SolarizeEffect>(device, queue, format), 0.000000f, 1.500000f, 1);
+    seq->add_effect(std::make_shared<ThemeModulationEffect>(ctx), 0.000000f, 1.500000f, 0);
+    seq->add_effect(std::make_shared<SolarizeEffect>(ctx), 0.000000f, 1.500000f, 1);
     main_seq.add_sequence(seq, 31.000000f, 0);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ParticleSprayEffect>(device, queue, format), 0.000000f, 2.000000f, 0);
-    seq->add_effect(std::make_shared<ParticlesEffect>(device, queue, format), 0.000000f, 2.000000f, 1);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 1);
+    seq->add_effect(std::make_shared<ParticleSprayEffect>(ctx), 0.000000f, 2.000000f, 0);
+    seq->add_effect(std::make_shared<ParticlesEffect>(ctx), 0.000000f, 2.000000f, 1);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 1);
     main_seq.add_sequence(seq, 3.000000f, 1);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ThemeModulationEffect>(device, queue, format), 0.000000f, 4.000000f, 0);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.2f, 2.0f, 1);
-    seq->add_effect(std::make_shared<ParticleSprayEffect>(device, queue, format), 0.000000f, 4.000000f, 2);
-    seq->add_effect(std::make_shared<Hybrid3DEffect>(device, queue, format), 0.000000f, 10.000000f, 3);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 4);
-    seq->add_effect(std::make_shared<ChromaAberrationEffect>(device, queue, format), 0.000000f, 5.000000f, 5);
-    seq->add_effect(std::make_shared<SolarizeEffect>(device, queue, format), 0.000000f, 5.000000f, 6);
+    seq->add_effect(std::make_shared<ThemeModulationEffect>(ctx), 0.000000f, 4.000000f, 0);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.2f, 2.0f, 1);
+    seq->add_effect(std::make_shared<ParticleSprayEffect>(ctx), 0.000000f, 4.000000f, 2);
+    seq->add_effect(std::make_shared<Hybrid3DEffect>(ctx), 0.000000f, 10.000000f, 3);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 4);
+    seq->add_effect(std::make_shared<ChromaAberrationEffect>(ctx), 0.000000f, 5.000000f, 5);
+    seq->add_effect(std::make_shared<SolarizeEffect>(ctx), 0.000000f, 5.000000f, 6);
     main_seq.add_sequence(seq, 12.000000f, 1);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<FlashCubeEffect>(device, queue, format), .2f, 1.500000f, -1);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.000000f, 2.000000f, 0);
-    seq->add_effect(std::make_shared<ParticleSprayEffect>(device, queue, format), 0.000000f, 2.000000f, 1);
-    seq->add_effect(std::make_shared<ParticlesEffect>(device, queue, format), 0.000000f, 2.000000f, 2);
+    seq->add_effect(std::make_shared<FlashCubeEffect>(ctx), .2f, 1.500000f, -1);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.000000f, 2.000000f, 0);
+    seq->add_effect(std::make_shared<ParticleSprayEffect>(ctx), 0.000000f, 2.000000f, 1);
+    seq->add_effect(std::make_shared<ParticlesEffect>(ctx), 0.000000f, 2.000000f, 2);
     main_seq.add_sequence(seq, 6.000000f, 2);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<FlashCubeEffect>(device, queue, format), .2f, 1.500000f, -1);
-    seq->add_effect(std::make_shared<FlashEffect>(device, queue, format), 0.0f, 0.500000f, 0);
+    seq->add_effect(std::make_shared<FlashCubeEffect>(ctx), .2f, 1.500000f, -1);
+    seq->add_effect(std::make_shared<FlashEffect>(ctx), 0.0f, 0.500000f, 0);
     main_seq.add_sequence(seq, 7.500000f, 2);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ThemeModulationEffect>(device, queue, format), 0.000000f, 2.000000f, 0);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.2f, 2.0f, 1);
-    seq->add_effect(std::make_shared<ParticleSprayEffect>(device, queue, format), 0.000000f, 2.000000f, 2);
-    seq->add_effect(std::make_shared<ParticlesEffect>(device, queue, format), 0.000000f, 2.000000f, 2);
-    seq->add_effect(std::make_shared<Hybrid3DEffect>(device, queue, format), 0.000000f, 2.000000f, 3);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 4);
-    seq->add_effect(std::make_shared<ChromaAberrationEffect>(device, queue, format), 0.000000f, 3.000000f, 5);
+    seq->add_effect(std::make_shared<ThemeModulationEffect>(ctx), 0.000000f, 2.000000f, 0);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.2f, 2.0f, 1);
+    seq->add_effect(std::make_shared<ParticleSprayEffect>(ctx), 0.000000f, 2.000000f, 2);
+    seq->add_effect(std::make_shared<ParticlesEffect>(ctx), 0.000000f, 2.000000f, 2);
+    seq->add_effect(std::make_shared<Hybrid3DEffect>(ctx), 0.000000f, 2.000000f, 3);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 4);
+    seq->add_effect(std::make_shared<ChromaAberrationEffect>(ctx), 0.000000f, 3.000000f, 5);
     main_seq.add_sequence(seq, 8.500000f, 2);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<ThemeModulationEffect>(device, queue, format), 0.000000f, 2.000000f, 0);
-    seq->add_effect(std::make_shared<HeptagonEffect>(device, queue, format), 0.0f, 4.0f, 0);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 1);
-    seq->add_effect(std::make_shared<ChromaAberrationEffect>(device, queue, format), 0.000000f, 3.000000f, 2);
-    seq->add_effect(std::make_shared<SolarizeEffect>(device, queue, format), 0.000000f, 5.000000f, 3);
+    seq->add_effect(std::make_shared<ThemeModulationEffect>(ctx), 0.000000f, 2.000000f, 0);
+    seq->add_effect(std::make_shared<HeptagonEffect>(ctx), 0.0f, 4.0f, 0);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 1);
+    seq->add_effect(std::make_shared<ChromaAberrationEffect>(ctx), 0.000000f, 3.000000f, 2);
+    seq->add_effect(std::make_shared<SolarizeEffect>(ctx), 0.000000f, 5.000000f, 3);
     main_seq.add_sequence(seq, 4.000000f, 3);
   }
   {
     auto seq = std::make_shared<Sequence>();
-    seq->add_effect(std::make_shared<FlashCubeEffect>(device, queue, format), .2f, 1.500000f, -1);
-    seq->add_effect(std::make_shared<GaussianBlurEffect>(device, queue, format), 0.000000f, 4.000000f, 0);
-    seq->add_effect(std::make_shared<FlashEffect>(device, queue, format), 0.0f, 0.2f, 1);
-    seq->add_effect(std::make_shared<FlashEffect>(device, queue, format), 0.500000f, 0.2f, 1);
+    seq->add_effect(std::make_shared<FlashCubeEffect>(ctx), .2f, 1.500000f, -1);
+    seq->add_effect(std::make_shared<GaussianBlurEffect>(ctx), 0.000000f, 4.000000f, 0);
+    seq->add_effect(std::make_shared<FlashEffect>(ctx), 0.0f, 0.2f, 1);
+    seq->add_effect(std::make_shared<FlashEffect>(ctx), 0.500000f, 0.2f, 1);
     main_seq.add_sequence(seq, 8.000000f, 10);
   }
 }