1 files changed, 28 insertions, 0 deletions
diff --git a/src/gpu/effects/chroma_aberration_effect.cc b/src/gpu/effects/chroma_aberration_effect.cc
new file mode 100644
index 0000000..5acc1f4
--- /dev/null
+++ b/src/gpu/effects/chroma_aberration_effect.cc
@@ -0,0 +1,28 @@
+// This file is part of the 64k demo project.
+// It implements the ChromaAberrationEffect.
+
+#include "gpu/demo_effects.h"
+#include "gpu/gpu.h"
+
+// --- ChromaAberrationEffect ---
+ChromaAberrationEffect::ChromaAberrationEffect(WGPUDevice device,
+                                               WGPUQueue queue,
+                                               WGPUTextureFormat format)
+    : device_(device), queue_(queue) {
+  uniforms_ =
+      gpu_create_buffer(device, sizeof(float) * 4,
+                        WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst);
+  pipeline_ = create_post_process_pipeline(device, format,
+                                           chroma_aberration_shader_wgsl);
+}
+void ChromaAberrationEffect::render(WGPURenderPassEncoder pass, float t,
+                                    float b, float i, float a) {
+  struct {
+    float t, b, i, a;
+  } u = {t, b, i, a};
+  wgpuQueueWriteBuffer(queue_, uniforms_.buffer, 0, &u, sizeof(u));
+  PostProcessEffect::render(pass, t, b, i, a);
+}
+void ChromaAberrationEffect::update_bind_group(WGPUTextureView v) {
+  pp_update_bind_group(device_, pipeline_, &bind_group_, v, uniforms_);
+}