aurora: Textured quads

aurora/CMakeLists.txt

@@ -20,6 +20,7 @@ add_library(aurora STATIC
     lib/gfx/common.cpp
     lib/gfx/texture.cpp
     lib/gfx/movie_player/shader.cpp
+    lib/gfx/textured_quad/shader.cpp
     # TODO move to imgui? or move imgui impl to here?
     ../extern/imgui/backends/imgui_impl_sdl.cpp
     ../extern/imgui/backends/imgui_impl_wgpu.cpp

aurora/lib/gfx/common.cpp

@@ -1,6 +1,7 @@
 #include "common.hpp"
 
 #include "../gpu.hpp"
+#include "textured_quad//shader.hpp"
 #include "movie_player/shader.hpp"
 
 #include <condition_variable>
@@ -17,17 +18,20 @@ using gpu::g_queue;
 
 struct ShaderState {
   movie_player::State moviePlayer;
+  textured_quad::State texturedQuad;
 };
 struct ShaderDrawCommand {
   ShaderType type;
   union {
     movie_player::DrawData moviePlayer;
+    textured_quad::DrawData texturedQuad;
   };
 };
 struct PipelineCreateCommand {
   ShaderType type;
   union {
     movie_player::PipelineConfig moviePlayer;
+    textured_quad::PipelineConfig texturedQuad;
   };
 };
 enum class CommandType {
@@ -135,12 +139,15 @@ void add_model(/* TODO */) noexcept {}
 void queue_aabb(const zeus::CAABox& aabb, const zeus::CColor& color, bool z_only) noexcept {
   // TODO
 }
+
 void queue_fog_volume_plane(const ArrayRef<zeus::CVector4f>& verts, uint8_t pass) {
   // TODO
 }
+
 void queue_fog_volume_filter(const zeus::CColor& color, bool two_way) noexcept {
   // TODO
 }
+
 void queue_textured_quad_verts(CameraFilterType filter_type, const TextureHandle& texture, ZTest z_comparison,
                                bool z_test, const zeus::CColor& color, const ArrayRef<zeus::CVector3f>& pos,
                                const ArrayRef<zeus::CVector2f>& uvs, float lod) noexcept {
@@ -148,8 +155,16 @@ void queue_textured_quad_verts(CameraFilterType filter_type, const TextureHandle
 }
 void queue_textured_quad(CameraFilterType filter_type, const TextureHandle& texture, ZTest z_comparison, bool z_test,
                          const zeus::CColor& color, float uv_scale, const zeus::CRectangle& rect, float z) noexcept {
-  // TODO
+  auto data = textured_quad::make_draw_data(g_state.texturedQuad, filter_type, texture, z_comparison, z_test, color,
+                                            uv_scale, rect, z);
+  push_draw_command({.type = ShaderType::TexturedQuad, .texturedQuad = data});
 }
+template <>
+PipelineRef pipeline_ref(textured_quad::PipelineConfig config) {
+  return find_pipeline({.type = ShaderType::TexturedQuad, .texturedQuad = config},
+                       [=]() { return create_pipeline(g_state.texturedQuad, config); });
+}
+
 void queue_colored_quad_verts(CameraFilterType filter_type, ZTest z_comparison, bool z_test, const zeus::CColor& color,
                               const ArrayRef<zeus::CVector3f>& pos) noexcept {
   // TODO
@@ -185,7 +200,7 @@ static void pipeline_worker() {
       cb = std::move(g_queuedPipelines.front());
     }
     auto result = cb.second();
-//    std::this_thread::sleep_for(std::chrono::milliseconds{1500});
+    // std::this_thread::sleep_for(std::chrono::milliseconds{1500});
     {
       std::scoped_lock lock{g_pipelineMutex};
       if (g_pipelines.contains(cb.first)) {
@@ -230,6 +245,7 @@ void initialize() {
   }
 
   g_state.moviePlayer = movie_player::construct_state();
+  g_state.texturedQuad = textured_quad::construct_state();
 }
 
 void shutdown() {
@@ -240,12 +256,18 @@ void shutdown() {
 
 void render(const wgpu::RenderPassEncoder& pass) {
   {
-    g_queue.WriteBuffer(g_vertexBuffer, 0, g_verts.data(), g_verts.size());
-    g_queue.WriteBuffer(g_uniformBuffer, 0, g_uniforms.data(), g_uniforms.size());
-    g_queue.WriteBuffer(g_indexBuffer, 0, g_indices.data(), g_indices.size());
-    g_verts.clear();
-    g_uniforms.clear();
-    g_indices.clear();
+    if (g_verts.size() > 0) {
+      g_queue.WriteBuffer(g_vertexBuffer, 0, g_verts.data(), g_verts.size());
+      g_verts.clear();
+    }
+    if (g_uniforms.size() > 0) {
+      g_queue.WriteBuffer(g_uniformBuffer, 0, g_uniforms.data(), g_uniforms.size());
+      g_uniforms.clear();
+    }
+    if (g_indices.size() > 0) {
+      g_queue.WriteBuffer(g_indexBuffer, 0, g_indices.data(), g_indices.size());
+      g_indices.clear();
+    }
   }
 
   g_currentPipeline = UINT64_MAX;
@@ -268,7 +290,7 @@ void render(const wgpu::RenderPassEncoder& pass) {
         // TODO
         break;
       case ShaderType::TexturedQuad:
-        // TODO
+        textured_quad::render(g_state.texturedQuad, draw.texturedQuad, pass);
         break;
       case ShaderType::MoviePlayer:
         movie_player::render(g_state.moviePlayer, draw.moviePlayer, pass);
@@ -290,6 +312,7 @@ bool bind_pipeline(PipelineRef ref, const wgpu::RenderPassEncoder& pass) {
     return false;
   }
   pass.SetPipeline(g_pipelines[ref]);
+  g_currentPipeline = ref;
   return true;
 }
 

aurora/lib/gfx/common.hpp

@@ -42,25 +42,13 @@ public:
     memcpy(m_data + m_length, data, size);
     m_length += size;
   }
+
   void append_zeroes(size_t size) {
     resize(m_length + size);
     memset(m_data + m_length, 0, size);
     m_length += size;
   }
 
-  void resize(size_t size) {
-    if (size == 0) {
-      clear();
-    } else if (m_data == nullptr) {
-      m_data = static_cast<uint8_t*>(malloc(size));
-    } else if (size > m_capacity) {
-      m_data = static_cast<uint8_t*>(realloc(m_data, size));
-    } else {
-      return;
-    }
-    m_capacity = size;
-  }
-
   void clear() {
     if (m_data != nullptr) {
       free(m_data);
@@ -74,18 +62,37 @@ private:
   uint8_t* m_data = nullptr;
   size_t m_length = 0;
   size_t m_capacity = 0;
+
+  void resize(size_t size) {
+    if (size == 0) {
+      clear();
+    } else if (m_data == nullptr) {
+      m_data = static_cast<uint8_t*>(malloc(size));
+    } else if (size > m_capacity) {
+      m_data = static_cast<uint8_t*>(realloc(m_data, size));
+    } else {
+      return;
+    }
+    m_capacity = size;
+  }
 };
 
 template <typename T>
 struct Vec2 {
   T x{};
   T y{};
+
+  constexpr Vec2(T x, T y) : x(x), y(y) {}
+  constexpr Vec2(const zeus::CVector2f& vec) : x(vec.x()), y(vec.y()) {}
 };
 template <typename T>
 struct Vec3 {
   T x{};
   T y{};
   T z{};
+
+  constexpr Vec3(T x, T y, T z) : x(x), y(y), z(z) {}
+  constexpr Vec3(const zeus::CVector3f& vec) : x(vec.x()), y(vec.y()), z(vec.z()) {}
 };
 template <typename T>
 struct Vec4 {
@@ -93,6 +100,27 @@ struct Vec4 {
   T y{};
   T z{};
   T w{};
+
+  constexpr Vec4(T x, T y, T z, T w) : x(x), y(y), z(z), w(w) {}
+  constexpr Vec4(const zeus::CVector4f& vec) : x(vec.x()), y(vec.y()), z(vec.z()), w(vec.w()) {}
+  constexpr Vec4(const zeus::CColor& color) : x(color.r()), y(color.g()), z(color.b()), w(color.a()) {}
+};
+template <typename T>
+struct Mat4x4 {
+  Vec4<T> m0{};
+  Vec4<T> m1{};
+  Vec4<T> m2{};
+  Vec4<T> m3{};
+
+  constexpr Mat4x4(const Vec4<T>& m0, const Vec4<T>& m1, const Vec4<T>& m2, const Vec4<T>& m3)
+  : m0(m0), m1(m1), m2(m2), m3(m3) {}
+  constexpr Mat4x4(const zeus::CMatrix4f& m) : m0(m[0]), m1(m[1]), m2(m[2]), m3(m[3]) {}
+};
+constexpr Mat4x4<float> Mat4x4_Identity{
+    Vec4<float>{1.f, 0.f, 0.f, 0.f},
+    Vec4<float>{0.f, 1.f, 0.f, 0.f},
+    Vec4<float>{0.f, 0.f, 1.f, 0.f},
+    Vec4<float>{0.f, 0.f, 0.f, 1.f},
 };
 } // namespace aurora
 

aurora/lib/gfx/movie_player/shader.cpp

@@ -108,7 +108,6 @@ fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
       wgpu::BindGroupEntry{
           .binding = 0,
           .buffer = g_uniformBuffer,
-          .offset = 0,
           .size = uniform_size,
       },
       wgpu::BindGroupEntry{
@@ -223,7 +222,7 @@ DrawData make_draw_data(const State& state, const TextureHandle& tex_y, const Te
                         const TextureHandle& tex_v, const zeus::CColor& color, float h_pad, float v_pad) {
   auto pipeline = pipeline_ref(PipelineConfig{});
 
-  const std::array<Vert, 4> verts{
+  const std::array verts{
       Vert{{-h_pad, v_pad, 0.f}, {0.0, 0.0}},
       Vert{{-h_pad, -v_pad, 0.f}, {0.0, 1.0}},
       Vert{{h_pad, v_pad, 0.f}, {1.0, 0.0}},
@@ -232,12 +231,12 @@ DrawData make_draw_data(const State& state, const TextureHandle& tex_y, const Te
   const auto vertRange = push_verts(ArrayRef{verts});
 
   const auto uniform = Uniform{
-      .xf = zeus::CMatrix4f{},
+      .xf = Mat4x4_Identity,
       .color = color,
   };
   const auto uniformRange = push_uniform(uniform);
 
-  std::array<wgpu::BindGroupEntry, 3> entries{
+  const std::array entries{
       wgpu::BindGroupEntry{
           .binding = 0,
           .textureView = tex_y.ref->view,

aurora/lib/gfx/movie_player/shader.hpp

@@ -24,13 +24,13 @@ struct State {
   wgpu::PipelineLayout pipelineLayout;
 };
 
-struct Vert {
+struct alignas(4) Vert {
   Vec3<float> pos;
   Vec2<float> uv;
 };
-struct Uniform {
-  zeus::CMatrix4f xf;
-  zeus::CColor color;
+struct alignas(4) Uniform {
+  Mat4x4<float> xf;
+  Vec4<float> color;
 };
 
 State construct_state();

aurora/lib/gfx/textured_quad/shader.cpp

@@ -0,0 +1,340 @@
+#include "shader.hpp"
+
+#include "../../gpu.hpp"
+
+#include <magic_enum.hpp>
+
+namespace aurora::gfx::textured_quad {
+static logvisor::Module Log("aurora::gfx::textured_quad");
+
+using gpu::g_device;
+using gpu::g_graphicsConfig;
+using gpu::utils::make_vertex_attributes;
+using gpu::utils::make_vertex_buffer_layout;
+using gpu::utils::make_vertex_state;
+
+State construct_state() {
+  wgpu::ShaderModuleWGSLDescriptor wgslDescriptor{};
+  wgslDescriptor.source = R"""(
+struct Uniform {
+    xf: mat4x4<f32>;
+    color: vec4<f32>;
+    lod: f32;
+};
+@group(0) @binding(0)
+var<uniform> ubuf: Uniform;
+@group(0) @binding(1)
+var texture_sampler: sampler;
+@group(1) @binding(0)
+var texture: texture_2d<f32>;
+
+struct VertexOutput {
+    @builtin(position) pos: vec4<f32>;
+    @location(0) uv: vec2<f32>;
+};
+
+@stage(vertex)
+fn vs_main(@location(0) in_pos: vec3<f32>, @location(1) in_uv: vec2<f32>) -> VertexOutput {
+    var out: VertexOutput;
+    out.pos = ubuf.xf * vec4<f32>(in_pos, 1.0);
+    out.uv = in_uv;
+    return out;
+}
+
+@stage(fragment)
+fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
+    return ubuf.color * textureSampleBias(texture, texture_sampler, in.uv, ubuf.lod);
+}
+)""";
+  const auto shaderDescriptor = wgpu::ShaderModuleDescriptor{
+      .nextInChain = &wgslDescriptor,
+      .label = "Textured Quad Shader",
+  };
+  auto shader = g_device.CreateShaderModule(&shaderDescriptor);
+
+  wgpu::SupportedLimits limits;
+  g_device.GetLimits(&limits);
+  const auto uniform_alignment = limits.limits.minUniformBufferOffsetAlignment;
+  const auto uniform_size = ALIGN(sizeof(Uniform), uniform_alignment);
+
+  const std::array uniformLayoutEntries{
+      wgpu::BindGroupLayoutEntry{
+          .binding = 0,
+          .visibility = wgpu::ShaderStage::Vertex | wgpu::ShaderStage::Fragment,
+          .buffer =
+              wgpu::BufferBindingLayout{
+                  .type = wgpu::BufferBindingType::Uniform,
+                  .hasDynamicOffset = true,
+                  .minBindingSize = uniform_size,
+              },
+      },
+      wgpu::BindGroupLayoutEntry{
+          .binding = 1,
+          .visibility = wgpu::ShaderStage::Fragment,
+          .sampler =
+              wgpu::SamplerBindingLayout{
+                  .type = wgpu::SamplerBindingType::Filtering,
+              },
+      },
+  };
+  const auto uniformLayoutDescriptor = wgpu::BindGroupLayoutDescriptor{
+      .label = "Textured Quad Uniform Bind Group Layout",
+      .entryCount = uniformLayoutEntries.size(),
+      .entries = uniformLayoutEntries.data(),
+  };
+  auto uniformLayout = g_device.CreateBindGroupLayout(&uniformLayoutDescriptor);
+
+  const auto samplerDescriptor = wgpu::SamplerDescriptor{
+      .addressModeU = wgpu::AddressMode::Repeat,
+      .addressModeV = wgpu::AddressMode::Repeat,
+      .addressModeW = wgpu::AddressMode::Repeat,
+      .magFilter = wgpu::FilterMode::Linear,
+      .minFilter = wgpu::FilterMode::Linear,
+      .mipmapFilter = wgpu::FilterMode::Linear,
+      .maxAnisotropy = g_graphicsConfig.textureAnistropy,
+  };
+  auto sampler = g_device.CreateSampler(&samplerDescriptor);
+
+  const std::array uniformBindGroupEntries{
+      wgpu::BindGroupEntry{
+          .binding = 0,
+          .buffer = g_uniformBuffer,
+          .size = uniform_size,
+      },
+      wgpu::BindGroupEntry{
+          .binding = 1,
+          .sampler = sampler,
+      },
+  };
+  const auto uniformBindGroupDescriptor = wgpu::BindGroupDescriptor{
+      .label = "Textured Quad Uniform Bind Group",
+      .layout = uniformLayout,
+      .entryCount = uniformBindGroupEntries.size(),
+      .entries = uniformBindGroupEntries.data(),
+  };
+  auto uniformBindGroup = g_device.CreateBindGroup(&uniformBindGroupDescriptor);
+
+  const auto textureBinding = wgpu::TextureBindingLayout{
+      .sampleType = wgpu::TextureSampleType::Float,
+      .viewDimension = wgpu::TextureViewDimension::e2D,
+  };
+  const std::array textureLayoutEntries{
+      wgpu::BindGroupLayoutEntry{
+          .binding = 0,
+          .visibility = wgpu::ShaderStage::Fragment,
+          .texture = textureBinding,
+      },
+  };
+  const auto textureLayoutDescriptor = wgpu::BindGroupLayoutDescriptor{
+      .label = "Textured Quad Texture Bind Group Layout",
+      .entryCount = textureLayoutEntries.size(),
+      .entries = textureLayoutEntries.data(),
+  };
+  auto textureLayout = g_device.CreateBindGroupLayout(&textureLayoutDescriptor);
+
+  const std::array bindGroupLayouts{
+      uniformLayout,
+      textureLayout,
+  };
+  const auto pipelineLayoutDescriptor = wgpu::PipelineLayoutDescriptor{
+      .label = "Textured Quad Pipeline Layout",
+      .bindGroupLayoutCount = bindGroupLayouts.size(),
+      .bindGroupLayouts = bindGroupLayouts.data(),
+  };
+  auto pipelineLayout = g_device.CreatePipelineLayout(&pipelineLayoutDescriptor);
+
+  return {
+      .shader = shader,
+      .uniformLayout = uniformLayout,
+      .uniformBindGroup = uniformBindGroup,
+      .textureLayout = textureLayout,
+      .sampler = sampler,
+      .pipelineLayout = pipelineLayout,
+  };
+}
+
+wgpu::RenderPipeline create_pipeline(const State& state, [[maybe_unused]] PipelineConfig config) {
+  const auto attributes =
+      make_vertex_attributes(std::array{wgpu::VertexFormat::Float32x3, wgpu::VertexFormat::Float32x2});
+  const std::array vertexBuffers{make_vertex_buffer_layout(sizeof(Vert), attributes)};
+
+  wgpu::CompareFunction depthCompare;
+  switch (config.zComparison) {
+  case ZTest::Never:
+    depthCompare = wgpu::CompareFunction::Never;
+    break;
+  case ZTest::Less:
+    depthCompare = wgpu::CompareFunction::Less;
+    break;
+  case ZTest::Equal:
+    depthCompare = wgpu::CompareFunction::Equal;
+    break;
+  case ZTest::LEqual:
+    depthCompare = wgpu::CompareFunction::LessEqual;
+    break;
+  case ZTest::Greater:
+    depthCompare = wgpu::CompareFunction::Greater;
+    break;
+  case ZTest::NEqual:
+    depthCompare = wgpu::CompareFunction::NotEqual;
+    break;
+  case ZTest::GEqual:
+    depthCompare = wgpu::CompareFunction::GreaterEqual;
+    break;
+  case ZTest::Always:
+    depthCompare = wgpu::CompareFunction::Always;
+    break;
+  }
+  const auto depthStencil = wgpu::DepthStencilState{
+      .format = g_graphicsConfig.depthFormat,
+      .depthWriteEnabled = config.zTest,
+      .depthCompare = depthCompare,
+  };
+
+  bool alphaWrite = false;
+  wgpu::BlendComponent blendComponent;
+  switch (config.filterType) {
+  case CameraFilterType::Multiply:
+    blendComponent = wgpu::BlendComponent{
+        .srcFactor = wgpu::BlendFactor::Zero,
+        .dstFactor = wgpu::BlendFactor::Src,
+    };
+    alphaWrite = true;
+    break;
+  case CameraFilterType::Add:
+    blendComponent = wgpu::BlendComponent{
+        .srcFactor = wgpu::BlendFactor::SrcAlpha,
+        .dstFactor = wgpu::BlendFactor::One,
+    };
+    alphaWrite = false;
+    break;
+  case CameraFilterType::Subtract:
+    blendComponent = wgpu::BlendComponent{
+        .operation = wgpu::BlendOperation::Subtract,
+        .srcFactor = wgpu::BlendFactor::SrcAlpha,
+        .dstFactor = wgpu::BlendFactor::One,
+    };
+    alphaWrite = false;
+    break;
+  case CameraFilterType::Blend:
+    blendComponent = wgpu::BlendComponent{
+        .srcFactor = wgpu::BlendFactor::SrcAlpha,
+        .dstFactor = wgpu::BlendFactor::OneMinusSrcAlpha,
+    };
+    alphaWrite = false;
+    break;
+  case CameraFilterType::InvDstMultiply:
+    blendComponent = wgpu::BlendComponent{
+        .srcFactor = wgpu::BlendFactor::Zero,
+        .dstFactor = wgpu::BlendFactor::OneMinusSrc,
+    };
+    alphaWrite = true;
+    break;
+  default:
+    Log.report(logvisor::Fatal, FMT_STRING("unimplemented filter type {}"), magic_enum::enum_name(config.filterType));
+    unreachable();
+  }
+
+  const auto blendState = wgpu::BlendState{
+      .color = blendComponent,
+      .alpha = blendComponent,
+  };
+  auto writeMask = wgpu::ColorWriteMask::Red | wgpu::ColorWriteMask::Green | wgpu::ColorWriteMask::Blue;
+  if (alphaWrite) {
+    writeMask = writeMask | wgpu::ColorWriteMask::Alpha;
+  }
+  const std::array colorTargets{
+      wgpu::ColorTargetState{
+          .format = g_graphicsConfig.colorFormat,
+          .blend = &blendState,
+          .writeMask = writeMask,
+      },
+  };
+  const auto fragmentState = wgpu::FragmentState{
+      .module = state.shader,
+      .entryPoint = "fs_main",
+      .targetCount = colorTargets.size(),
+      .targets = colorTargets.data(),
+  };
+
+  const auto pipelineDescriptor = wgpu::RenderPipelineDescriptor{
+      .label = "Textured Quad Pipeline",
+      .layout = state.pipelineLayout,
+      .vertex = make_vertex_state(state.shader, vertexBuffers),
+      .primitive =
+          wgpu::PrimitiveState{
+              .topology = wgpu::PrimitiveTopology::TriangleStrip,
+          },
+      .depthStencil = &depthStencil,
+      .multisample =
+          wgpu::MultisampleState{
+              .count = g_graphicsConfig.msaaSamples,
+          },
+      .fragment = &fragmentState,
+  };
+  return g_device.CreateRenderPipeline(&pipelineDescriptor);
+}
+
+DrawData make_draw_data(const State& state, CameraFilterType filter_type, const TextureHandle& texture,
+                        ZTest z_comparison, bool z_test, const zeus::CColor& color, float uv_scale,
+                        const zeus::CRectangle& rect, float z) {
+  auto pipeline = pipeline_ref(PipelineConfig{
+      .filterType = filter_type,
+      .zComparison = z_comparison,
+      .zTest = z_test,
+  });
+
+  const std::array verts{
+      Vert{{0.f, 0.f, z}, {0.0, 0.0}},
+      Vert{{0.f, 1.f, z}, {0.0, uv_scale}},
+      Vert{{1.f, 0.f, z}, {uv_scale, 0.0}},
+      Vert{{1.f, 1.f, z}, {uv_scale, uv_scale}},
+  };
+  const auto vertRange = push_verts(ArrayRef{verts});
+
+  const auto uniform = Uniform{
+      .xf =
+          Mat4x4<float>{
+              Vec4<float>{rect.size.x() * 2.f, 0.f, 0.f, 0.f},
+              Vec4<float>{0.f, rect.size.y() * 2.f, 0.f, 0.f},
+              Vec4<float>{0.f, 0.f, 1.f, 0.f},
+              Vec4<float>{rect.position.x() * 2.f - 1.f, rect.position.y() * 2.f - 1.f, 0.f, 1.f},
+          },
+      .color = color,
+      .lod = 0.f,
+  };
+  const auto uniformRange = push_uniform(uniform);
+
+  const std::array entries{
+      wgpu::BindGroupEntry{
+          .binding = 0,
+          .textureView = texture.ref->view,
+      },
+  };
+  const auto textureBindGroup = bind_group_ref(wgpu::BindGroupDescriptor{
+      .label = "Textured Quad Texture Bind Group",
+      .layout = state.textureLayout,
+      .entryCount = entries.size(),
+      .entries = entries.data(),
+  });
+
+  return {
+      .pipeline = pipeline,
+      .vertRange = vertRange,
+      .uniformRange = uniformRange,
+      .textureBindGroup = textureBindGroup,
+  };
+}
+
+void render(const State& state, const DrawData& data, const wgpu::RenderPassEncoder& pass) {
+  if (!bind_pipeline(data.pipeline, pass)) {
+    return;
+  }
+
+  const std::array offsets{data.uniformRange.first};
+  pass.SetBindGroup(0, state.uniformBindGroup, offsets.size(), offsets.data());
+  pass.SetBindGroup(1, find_bind_group(data.textureBindGroup));
+  pass.SetVertexBuffer(0, g_vertexBuffer, data.vertRange.first, data.vertRange.second);
+  pass.Draw(4);
+}
+} // namespace aurora::gfx::textured_quad

aurora/lib/gfx/textured_quad/shader.hpp

@@ -0,0 +1,46 @@
+#include "../common.hpp"
+
+namespace aurora::gfx::textured_quad {
+struct DrawData {
+  PipelineRef pipeline;
+  Range vertRange;
+  Range uniformRange;
+  BindGroupRef textureBindGroup;
+};
+
+struct PipelineConfig {
+  CameraFilterType filterType;
+  ZTest zComparison;
+  bool zTest;
+};
+static const std::array INITIAL_PIPELINES{
+    PipelineConfig{}, // TODO
+};
+
+struct State {
+  wgpu::ShaderModule shader;
+  wgpu::BindGroupLayout uniformLayout;
+  wgpu::BindGroup uniformBindGroup;
+  wgpu::BindGroupLayout textureLayout;
+  wgpu::Sampler sampler;
+  wgpu::PipelineLayout pipelineLayout;
+};
+
+struct alignas(4) Vert {
+  Vec3<float> pos;
+  Vec2<float> uv;
+};
+struct alignas(4) Uniform {
+  Mat4x4<float> xf;
+  Vec4<float> color;
+  float lod;
+};
+static_assert(sizeof(Uniform) == 84);
+
+State construct_state();
+wgpu::RenderPipeline create_pipeline(const State& state, [[maybe_unused]] PipelineConfig config);
+DrawData make_draw_data(const State& state, CameraFilterType filter_type, const TextureHandle& texture,
+                        ZTest z_comparison, bool z_test, const zeus::CColor& color, float uv_scale,
+                        const zeus::CRectangle& rect, float z);
+void render(const State& state, const DrawData& data, const wgpu::RenderPassEncoder& pass);
+} // namespace aurora::gfx::textured_quad