From 709067df5303ddf0715f56903ccfdb877cb4db7e Mon Sep 17 00:00:00 2001 From: skal Date: Sun, 1 Feb 2026 01:33:47 +0100 Subject: Refactor: Split demo effects and shaders into individual files Split src/gpu/demo_effects.cc into individual .cc files for each effect and created separate files for post-processing helpers and WGSL shaders. Updated src/gpu/demo_effects.h to be a central header for all effect-related declarations and adjusted CMakeLists.txt accordingly. --- src/gpu/effects/moving_ellipse_effect.cc | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 src/gpu/effects/moving_ellipse_effect.cc (limited to 'src/gpu/effects/moving_ellipse_effect.cc') diff --git a/src/gpu/effects/moving_ellipse_effect.cc b/src/gpu/effects/moving_ellipse_effect.cc new file mode 100644 index 0000000..60fc825 --- /dev/null +++ b/src/gpu/effects/moving_ellipse_effect.cc @@ -0,0 +1,28 @@ +// This file is part of the 64k demo project. +// It implements the MovingEllipseEffect. + +#include "gpu/demo_effects.h" +#include "gpu/gpu.h" + +// --- MovingEllipseEffect --- +MovingEllipseEffect::MovingEllipseEffect(WGPUDevice device, WGPUQueue queue, + WGPUTextureFormat format) + : queue_(queue) { + uniforms_ = + gpu_create_buffer(device, sizeof(float) * 4, + WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst); + ResourceBinding bindings[] = {{uniforms_, WGPUBufferBindingType_Uniform}}; + pass_ = + gpu_create_render_pass(device, format, ellipse_shader_wgsl, bindings, 1); + pass_.vertex_count = 3; +} +void MovingEllipseEffect::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)); + wgpuRenderPassEncoderSetPipeline(pass, pass_.pipeline); + wgpuRenderPassEncoderSetBindGroup(pass, 0, pass_.bind_group, 0, nullptr); + wgpuRenderPassEncoderDraw(pass, 3, 1, 0, 0); +} -- cgit v1.2.3