add assign3 shader classes

include/render/gl.h

@@ -183,48 +183,35 @@ namespace fp {
             }
     };
 
-    class shader {
+    /**
+     * a basic computer shader class, contains the functions and resources required to use compute shaders!
+     */
+    class compute_shader : public shader_base {
         private:
-            struct IntDefaultedToMinusOne {
+            GLuint shaderID = 0;
-                GLint i = -1;
+        public:
+            explicit compute_shader(const std::string& shader_source, bool loadAsString = true);
+            
+            inline void execute(int x, int y, int z) const {
+                bind();
+                glDispatchCompute(x, y, z);
+            }
+            
+            ~compute_shader();
     };
-            // we can have shaders of many types in OpenGL
+    
-            unsigned int programID = 0;
+    class shader : public shader_base {
-            // but we will only make use of these two for now
+        private:
-            unsigned int vertexShaderID = 0;
+            GLuint vertexShaderID = 0;
-            unsigned int fragmentShaderID = 0;
+            GLuint fragmentShaderID = 0;
             // while these will remain unused. (Webgl2 apparently doesn't support them despite being based on GL4.3? that's a TODO!)
-            unsigned int geometryShaderID = 0;
+            GLuint geometryShaderID = 0;
             // this would be very useful however it is highly unlikely webgl will support it
             // im leaving some of this stuff in here because I might expand the native application to use some of it.
             // im trying to keep the web and native versions the same though
-            unsigned int tessellationShaderID = 0;
+            GLuint tessellationShaderID = 0;
-            std::unordered_map<std::string, IntDefaultedToMinusOne> uniformVars;
             
             static unsigned int createShader(const std::string& source, int type);
-            
-            inline GLint getUniformLocation(const std::string &name) {
-                if (uniformVars[name].i != -1)
-                    return uniformVars[name].i;
-                // caching the result is a lot faster since it won't change after the shader is created.
-                // TODO: look into this: https://webglfundamentals.org/webgl/lessons/webgl-qna-how-can-i-get-all-the-uniforms-and-uniformblocks.html
-                int loc = glGetUniformLocation(programID, name.c_str());
-                uniformVars[name].i = loc;
-                return loc;
-            }
-            
-            static inline std::string removeEmptyFirstLines(const std::string& string){
-                auto lines = blt::string::split(string, "\n");
-                std::string new_source_string;
-                for (const auto& line : lines) {
-                    if (!line.empty() && !blt::string::contains(line, "\"")) {
-                        new_source_string += line;
-                        new_source_string += "\n";
-                    }
-                }
-                return new_source_string;
-            }
-        
         public:
             /**
              * Creates a shader
@@ -243,56 +230,16 @@ namespace fp {
             // used to set location of shared UBOs like the perspective and view matrix
             void setUniformBlockLocation(const std::string &name, int location) const;
             
-            // set various data-types.
+            ~shader();
-            inline void setBool(const std::string &name, bool value) {
-                glUniform1i(getUniformLocation(name), (int) value);
-            }
-            
-            inline void setInt(const std::string &name, int value) {
-                glUniform1i(getUniformLocation(name), value);
-            }
-            
-            inline void setFloat(const std::string &name, float value) {
-                glUniform1f(getUniformLocation(name), value);
-            }
-            
-            inline void setMatrix(const std::string &name, blt::mat4x4 &matrix) {
-                glUniformMatrix4fv(getUniformLocation(name), 1, GL_FALSE, matrix.ptr());
-            }
-            
-            inline void setVec3(const std::string &name, const blt::vec3 &vec) {
-                glUniform3f(getUniformLocation(name), vec.x(), vec.y(), vec.z());
-            }
-            
-            inline void setVec4(const std::string &name, const blt::vec4 &vec) {
-                // TODO: edit BLT to include a w component
-                glUniform4f(getUniformLocation(name), vec.x(), vec.y(), vec.z(), vec[3]);
-            }
-            
-            inline void setVec2(const std::string &name, float x, float y) {
-                glUniform2f(getUniformLocation(name), x, y);
-            }
-            
-            inline void setVec3(const std::string &name, float x, float y, float z) {
-                glUniform3f(getUniformLocation(name), x, y, z);
-            }
-            
-            inline void setVec4(const std::string &name, float x, float y, float z, float w) {
-                glUniform4f(getUniformLocation(name), x, y, z, w);
-            }
-            
-            inline void use() const {
-                glUseProgram(programID);
-            }
             
             static void updateProjectionMatrix(const blt::mat4x4& projectionMatrix);
             static void updateOrthographicMatrix(const blt::mat4x4& orthoMatrix);
             static void updateViewMatrix(const blt::mat4x4& viewMatrix);
             // returns the perspective view matrix which is calculated per frame. (This is for optimization)
             static const blt::mat4x4& getPVM();
-            
-            ~shader();
     };
+    
+    
 }
 
 

include/util/threadpool.h

@@ -0,0 +1,23 @@
+/*
+ * Created by Brett on 22/04/23.
+ * Licensed under GNU General Public License V3.0
+ * See LICENSE file for license detail
+ */
+
+#ifndef FINALPROJECT_THREADPOOL_H
+#define FINALPROJECT_THREADPOOL_H
+
+#include <thread>
+#include <mutex>
+
+namespace blt {
+    
+    class thread_pool {
+        private:
+        
+        public:
+    };
+
+}
+
+#endif //FINALPROJECT_THREADPOOL_H

include/world/world.h

@@ -166,7 +166,7 @@ namespace fp {
                 neighbours[Z_NEG] = getChunk(chunk_pos{pos.x, pos.y, pos.z - 1});
             }
             
-            inline void insertChunk(chunk* chunk) {
+            inline void spawnChunk(chunk* chunk) {
                 if (chunk == nullptr)
                     return;
                 chunk_storage.insert({chunk->getPos(), chunk});

src/render/gl.cpp

@@ -65,6 +65,18 @@ namespace fp::_static {
 }
 
 namespace fp {
+    static inline std::string removeEmptyFirstLines(const std::string& string){
+        auto lines = blt::string::split(string, "\n");
+        std::string new_source_string;
+        for (const auto& line : lines) {
+            if (!line.empty() && !blt::string::contains(line, "\"")) {
+                new_source_string += line;
+                new_source_string += "\n";
+            }
+        }
+        return new_source_string;
+    }
+    
     VAO::VAO() {
         glGenVertexArrays(1, &vaoID);
     }
@@ -96,7 +108,6 @@ namespace fp {
         VBOs.insert({-1, vbo});
     }
     
-    
     unsigned int shader::createShader(const std::string& source, int type) {
         const char* shader_code = source.c_str();
         // creates a Shader
@@ -153,7 +164,7 @@ namespace fp {
         vertexShaderID = createShader(vertex_source, GL_VERTEX_SHADER);
         fragmentShaderID = createShader(fragment_source, GL_FRAGMENT_SHADER);
         if (load_geometry)
-            BLT_ERROR("Unable to load geometry shader because webgl doesn't support it!");
+            geometryShaderID = createShader(geometry_source, GL_GEOMETRY_SHADER);
         
         // bind them to a program
         programID = glCreateProgram();
@@ -186,19 +197,18 @@ namespace fp {
         }
         
         glValidateProgram(programID);
-        use();
+        bind();
         setUniformBlockLocation("StandardMatrices", 0);
         glUseProgram(0);
-        
     }
     
     void shader::bindAttribute(int attribute, const std::string &name) const {
-        use();
+        bind();
         glBindAttribLocation(programID, attribute, name.c_str());
     }
     
     void shader::setUniformBlockLocation(const std::string &name, int location) const {
-        use();
+        bind();
         glUniformBlockBinding(programID, glGetUniformBlockIndex(programID, name.c_str()), location);
     }
     

src/render/ui/graphics.cpp

@@ -184,7 +184,7 @@ namespace fp::graphics {
     
     void render() {
         // generate planes
-        plane_shader->use();
+        plane_shader->bind();
         plane_vao->bind();
         glDisable(GL_CULL_FACE);
         while (!plane_render_queue.empty()) {
@@ -210,7 +210,7 @@ namespace fp::graphics {
         //glDisable(GL_CULL_FACE);
         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
         
-        text_shader->use();
+        text_shader->bind();
         quad_vao->bind();
         glEnableVertexAttribArray(0);
         

src/util/threadpool.cpp

@@ -0,0 +1,6 @@
+/*
+ * Created by Brett on 22/04/23.
+ * Licensed under GNU General Public License V3.0
+ * See LICENSE file for license detail
+ */
+#include <util/threadpool.h>

src/world/world.cpp

@@ -125,19 +125,19 @@ std::queue<fp::chunk_pos> chunks_to_generate{};
 void fp::world::update() {
     auto target_delta = 1000000000 / std::stoi(fp::settings::get("FPS"));
     
-    while (fp::window::getCurrentDelta() < target_delta) {
+    while (fp::window::getCurrentDelta() < target_delta/2) {
         if (chunks_to_generate.empty())
             break;
         const auto& front = chunks_to_generate.front();
         
-        insertChunk(generateChunk(front));
+        spawnChunk(generateChunk(front));
         
         chunks_to_generate.pop();
     }
 }
 
 void fp::world::render(fp::shader& shader) {
-    shader.use();
+    shader.bind();
     
     if (fp::window::isKeyPressed(GLFW_KEY_F) && fp::window::keyState())
         fp::camera::isFrozen() ? fp::camera::unfreeze() : fp::camera::freeze();