Uniform arrays working.

src/dawn/CMakeLists.txt

@@ -35,6 +35,7 @@ add_subdirectory(scene)
 # add_subdirectory(state)
 add_subdirectory(time)
 add_subdirectory(util)
+add_subdirectory(ui)
 
 # Definitions
 # target_compile_definitions(${DAWN_TARGET_NAME}

src/dawn/component/CMakeLists.txt

@@ -9,4 +9,5 @@ target_sources(${DAWN_TARGET_NAME}
 )
 
 # Subdirs
-add_subdirectory(display)
+add_subdirectory(display)
+add_subdirectory(ui)

src/dawn/component/ui/CMakeLists.txt

@@ -0,0 +1,9 @@
+# Copyright (c) 2023 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DAWN_TARGET_NAME}
+  PRIVATE
+    UICanvas.cpp
+)

src/dawn/component/ui/UICanvas.cpp

@@ -0,0 +1,64 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "UICanvas.hpp"
+#include "display/pass/RenderPass.hpp"
+#include "display/shader/UIShader.hpp"
+
+#include "display/mesh/QuadMesh.hpp"
+
+using namespace Dawn;
+
+void UICanvas::onInit() {
+  
+}
+
+void UICanvas::onDispose() {
+
+}
+
+std::vector<std::shared_ptr<IRenderPass>> UICanvas::getPasses(
+  struct RenderPassContext &ctx
+) {
+  std::vector<std::shared_ptr<IRenderPass>> passes;
+
+  auto selfTransform = this->getItem()->getWorldTransform();
+
+  auto mesh = std::make_shared<Mesh>();
+  mesh->createBuffers(QUAD_VERTICE_COUNT, QUAD_INDICE_COUNT);
+  QuadMesh::buffer(mesh, glm::vec4(0, 0, 32, 32), glm::vec4(0, 0, 1, 1), 0, 0);
+  UIShaderData data = {
+    .projection = ctx.camera->getProjection(),
+    .view = ctx.camera->getItem()->getWorldTransform(),
+    .model = selfTransform
+  };
+
+  data.colors[0] = COLOR_WHITE;
+  data.colors[1] = COLOR_RED;
+  data.colors[2] = COLOR_GREEN;
+  data.colors[3] = COLOR_BLUE;
+
+  auto pass = createRenderPass<UIShader, UIShaderData>(
+    std::ref(*this),
+    data,
+    std::unordered_map<shadertexturebinding_t, std::shared_ptr<Texture>>(),
+    mesh,
+    MeshDrawMode::TRIANGLES,
+    0, -1
+  );
+  passes.push_back(pass);
+
+  auto itComponents = components.begin();
+  while(itComponents != components.end()) {
+    auto component = *itComponents;
+
+    // Get this components' quads.
+    auto quads = component->getQuads(selfTransform);
+    
+    ++itComponents;
+  }
+
+  return passes;
+}

src/dawn/component/ui/UICanvas.hpp

@@ -0,0 +1,28 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "scene/SceneItem.hpp"
+#include "component/display/IRenderableComponent.hpp"
+#include "ui/UIComponent.hpp"
+
+namespace Dawn {
+  class UICanvas :
+    public SceneComponent,
+    public IRenderableComponent
+  {
+    protected:
+      virtual void onInit() override;
+      virtual void onDispose() override;
+
+    public:
+      std::vector<std::shared_ptr<UIComponent>> components;
+
+
+      std::vector<std::shared_ptr<IRenderPass>> getPasses(
+        struct RenderPassContext &ctx
+      ) override;
+  };
+}

src/dawn/display/pass/RenderPass.hpp

@@ -4,6 +4,7 @@
 // https://opensource.org/licenses/MIT
 
 #pragma once
+#include "game/Game.hpp"
 #include "display/pass/IRenderPass.hpp"
 #include "display/shader/Shader.hpp"
 #include "display/Texture.hpp"

src/dawn/ui/CMakeLists.txt

@@ -0,0 +1,10 @@
+# Copyright (c) 2023 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DAWN_TARGET_NAME}
+  PRIVATE
+    UIComponent.cpp
+    UIRectangle.cpp
+)

src/dawn/ui/UIAlign.hpp

@@ -0,0 +1,13 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "dawnlibs.hpp"
+
+namespace Dawn {
+  struct UIAlign {
+    glm::vec2 position;
+  };
+}

src/dawn/ui/UIComponent.cpp

@@ -0,0 +1,37 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "UIComponent.hpp"
+
+using namespace Dawn;
+
+std::vector<std::shared_ptr<UIComponent>> UIComponent::getChildren() {
+  return {};
+}
+
+std::vector<struct UIQuad> UIComponent::getQuads(
+  const glm::mat4 parent
+) {
+  // Get self transform
+  glm::mat4 transform = glm::translate(
+    glm::mat4(1.0f), glm::vec3(position, 0.0f)
+  );
+
+  // Add parent transform
+  transform = parent * transform;
+
+  // Get self quads and insert new transform.
+  std::vector<struct UIQuad> quads;
+  auto selfQuads = this->getSelfQuads(transform);
+
+  // Get children
+  auto children = getChildren();
+  for(auto &c : children) {
+    auto childQuads = c->getQuads(transform);
+    quads.insert(quads.end(), childQuads.begin(), childQuads.end());
+  }
+
+  return quads;
+}

src/dawn/ui/UIComponent.hpp

@@ -0,0 +1,30 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "ui/UIAlign.hpp"
+#include "ui/UIQuad.hpp"
+
+namespace Dawn {
+  class UICanvas;
+
+  class UIComponent {
+    protected:
+      virtual std::vector<struct UIQuad> getSelfQuads(
+        const glm::mat4 transform
+      ) = 0;
+
+      virtual std::vector<std::shared_ptr<UIComponent>> getChildren();
+
+      std::vector<struct UIQuad> getQuads(
+        const glm::mat4 parent
+      );
+
+    public:
+      glm::vec2 position;
+
+      friend class UICanvas;
+  };
+}

src/dawn/ui/UIQuad.hpp

@@ -0,0 +1,34 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "display/Color.hpp"
+#include "display/Texture.hpp"
+
+namespace Dawn {
+  struct UIQuad {
+    glm::mat4 transform;
+    glm::vec4 quad;
+    glm::vec4 uv;
+    struct Color color;
+    std::shared_ptr<Texture> texture;
+
+    UIQuad(
+      const glm::mat4 transform,
+      const glm::vec4 quad,
+      const glm::vec4 uv,
+      const struct Color color,
+      const std::shared_ptr<Texture> texture
+    ) :
+      transform(transform),
+      quad(quad),
+      uv(uv),
+      color(color),
+      texture(texture)
+    {
+
+    }
+  };
+}

src/dawn/ui/UIRectangle.cpp

@@ -0,0 +1,24 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "UIRectangle.hpp"
+
+using namespace Dawn;
+
+std::vector<struct UIQuad> UIRectangle::getSelfQuads(
+  const glm::mat4 transform
+) {
+  std::vector<struct UIQuad> quads;
+  
+  quads.push_back(UIQuad(
+    transform,
+    glm::vec4(0,0,size.x,size.y),
+    uv,
+    color,
+    texture
+  ));
+
+  return quads;
+}

src/dawn/ui/UIRectangle.hpp

@@ -0,0 +1,22 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "ui/UIComponent.hpp"
+
+namespace Dawn {
+  class UIRectangle final : public UIComponent {
+    protected:
+      std::vector<struct UIQuad> getSelfQuads(
+        const glm::mat4 transform
+      ) override;
+
+    public:
+      struct Color color = COLOR_WHITE;
+      std::shared_ptr<Texture> texture = nullptr;
+      glm::vec2 size = glm::vec2(32, 32);
+      glm::vec4 uv = glm::vec4(0,0,1,1);
+  };
+}

src/dawnhelloworld/scene/HelloWorldScene.cpp

@@ -10,6 +10,9 @@
 #include "component/display/material/SimpleTexturedMaterial.hpp"
 #include "display/mesh/QuadMesh.hpp"
 
+#include "component/ui/UICanvas.hpp"
+#include "ui/UIRectangle.hpp"
+
 #include <ft2build.h>
 #include FT_FREETYPE_H
 
@@ -28,20 +31,27 @@ void Dawn::helloWorldScene(Scene &s) {
   auto camera = cameraItem->addComponent<Camera>();
   cameraItem->lookAt({ 120, 120, 120 }, { 0, 0, 0 }, { 0, 1, 0 });
 
-  auto quad = s.createSceneItem();
-  auto quadMesh = std::make_shared<Mesh>();
+  // auto quad = s.createSceneItem();
+  // auto quadMesh = std::make_shared<Mesh>();
 
-  glm::vec2 position = { 0, 0 };
-  glm::vec2 size = texture->bufferStringToMesh(
-    quadMesh,
-    L"Hello World!",
-    position,
-    true  
-  );
+  // glm::vec2 position = { 0, 0 };
+  // glm::vec2 size = texture->bufferStringToMesh(
+  //   quadMesh,
+  //   L"Hello World!",
+  //   position,
+  //   true  
+  // );
 
-  auto quadRenderer = quad->addComponent<MeshRenderer>();
-  quadRenderer->mesh = quadMesh;
+  // auto quadRenderer = quad->addComponent<MeshRenderer>();
+  // quadRenderer->mesh = quadMesh;
 
-  auto quadMaterial = quad->addComponent<SimpleTexturedMaterial>();
-  quadMaterial->setTexture(texture->texture);
+  // auto quadMaterial = quad->addComponent<SimpleTexturedMaterial>();
+  // quadMaterial->setTexture(texture->texture);
+
+
+  auto uiCanvasItem = s.createSceneItem();
+  auto uiCanvas = uiCanvasItem->addComponent<UICanvas>();
+
+  auto rect = std::make_shared<UIRectangle>();
+  uiCanvas->components.push_back(rect);
 }

src/dawnopengl/display/shader/CMakeLists.txt

@@ -9,4 +9,5 @@ target_sources(${DAWN_TARGET_NAME}
     Shader.cpp
     ShaderStage.cpp
     SimpleTexturedShader.cpp
+    UIShader.cpp
 )

src/dawnopengl/display/shader/Shader.hpp

@@ -22,6 +22,7 @@ namespace Dawn {
     std::string name;
     size_t offset;
     enum ShaderParameterType type;
+    int32_t count;
 
     GLint location = -1;
 
@@ -33,6 +34,19 @@ namespace Dawn {
       this->name = name;
       this->offset = (size_t)offset;
       this->type = type;
+      this->count = 1;
+    }
+
+    ShaderOpenGLParameter(
+      const std::string &name,
+      const void *offset,
+      const enum ShaderParameterType type,
+      const int32_t count
+    ) {
+      this->name = name;
+      this->offset = (size_t)offset;
+      this->type = type;
+      this->count = count;
     }
   };
 
@@ -136,6 +150,9 @@ namespace Dawn {
               switch(param.type) {
                 case ShaderParameterType::MAT4: {
                   glm::mat4 *matrix = (glm::mat4 *)value;
+                  if(param.count != 1) {
+                    assertUnreachable("I haven't implemented multiple mat4s");
+                  }
                   glUniformMatrix4fv(
                     param.location, 1, GL_FALSE, glm::value_ptr(*matrix)
                   );
@@ -144,25 +161,21 @@ namespace Dawn {
                 
                 case ShaderParameterType::COLOR: {
                   auto color = (Color *)value;
-                  glUniform4f(
+                  glUniform4fv(
                     param.location,
-                    color->r,
-                    color->g,
-                    color->b,
-                    color->a
+                    param.count,
+                    (GLfloat*)value
                   );
                   break;
                 }
 
                 case ShaderParameterType::BOOLEAN: {
-                  auto boolean = (bool_t *)value;
-                  glUniform1i(param.location, *boolean ? 1 : 0);
+                  glUniform1iv(param.location, param.count, (GLint*)value);
                   break;
                 }
 
                 case ShaderParameterType::TEXTURE: {
-                  textureslot_t texture = *((textureslot_t*)value);
-                  glUniform1i(param.location, texture);
+                  glUniform1iv(param.location, param.count, (GLint*)value);
                   break;
                 }
 

src/dawnopengl/display/shader/UIShader.cpp

@@ -0,0 +1,100 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "display/shader/UIShader.hpp"
+
+using namespace Dawn;
+
+void UIShader::getStages(
+  const enum ShaderOpenGLVariant variant,
+  const struct UIShaderData *rel,
+  std::vector<std::shared_ptr<ShaderStage>> &stages,
+  std::vector<struct ShaderOpenGLParameter> &parameters
+) {
+  // Stages
+  std::shared_ptr<ShaderStage> vertex;
+  std::shared_ptr<ShaderStage> fragment;
+
+  switch(variant) {
+    case ShaderOpenGLVariant::GLSL_330_CORE:
+      vertex = std::make_shared<ShaderStage>(
+        ShaderStageType::VERTEX,
+        "#version 330 core\n"
+        "layout (location = 0) in vec3 aPos;\n"
+        "layout (location = 1) in vec2 aTexCoord;\n"
+        "uniform mat4 u_Projection;\n"
+        "uniform mat4 u_View;\n"
+        "uniform mat4 u_Model;\n"
+        "out vec2 o_TextCoord;\n"
+        "void main() {\n"
+          "gl_Position = u_Projection * u_View * u_Model * vec4(aPos, 1.0);\n"
+          "o_TextCoord = vec2(aTexCoord.x, aTexCoord.y);\n"
+        "}"
+      );
+      
+      fragment = std::make_shared<ShaderStage>(
+        ShaderStageType::FRAGMENT,
+        "#version 330 core\n"
+        "in vec2 o_TextCoord;\n"
+        "uniform vec4 u_Color[4];\n"
+        "out vec4 o_Color;\n"
+        "void main() {\n"
+          "o_Color = u_Color[2];\n"
+        "}\n"
+      );
+      break;
+
+    default:
+      assertUnreachable("Unsupported ShaderOpenGLVariant");
+  }
+
+  // Add stages
+  stages.push_back(vertex);
+  stages.push_back(fragment);
+
+  // Parameters
+  parameters.push_back(ShaderOpenGLParameter(
+    "u_Projection",
+    &rel->projection,
+    ShaderParameterType::MAT4
+  ));
+
+  parameters.push_back(ShaderOpenGLParameter(
+    "u_View",
+    &rel->view,
+    ShaderParameterType::MAT4
+  ));
+
+  parameters.push_back(ShaderOpenGLParameter(
+    "u_Model",
+    &rel->model,
+    ShaderParameterType::MAT4
+  ));
+  
+  parameters.push_back(ShaderOpenGLParameter(
+    "u_Color",
+    &rel->colors,
+    ShaderParameterType::COLOR,
+    4
+  ));
+
+  // parameters.push_back(ShaderOpenGLParameter(
+  //   "u_Color",
+  //   &rel->color,
+  //   ShaderParameterType::COLOR
+  // ));
+
+  // parameters.push_back(ShaderOpenGLParameter(
+  //   "u_HasTexture",
+  //   &rel->hasTexture,
+  //   ShaderParameterType::BOOLEAN
+  // ));
+
+  // parameters.push_back(ShaderOpenGLParameter(
+  //   "u_Texture",
+  //   &rel->texture,
+  //   ShaderParameterType::TEXTURE
+  // ));
+}

src/dawnopengl/display/shader/UIShader.hpp

@@ -0,0 +1,26 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "display/shader/Shader.hpp"
+
+namespace Dawn {
+  struct UIShaderData {
+    glm::mat4 projection;
+    glm::mat4 view;
+    glm::mat4 model;
+    struct Color colors[4];
+  };
+
+  class UIShader : public Shader<UIShaderData> {
+    protected:
+      void getStages(
+        const enum ShaderOpenGLVariant variant,
+        const struct UIShaderData *rel,
+        std::vector<std::shared_ptr<ShaderStage>> &stages,
+        std::vector<struct ShaderOpenGLParameter> &parameters
+      ) override;
+  };
+}