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work on renderer

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This commit is contained in:
Nathan
2026-02-10 13:37:49 -06:00
parent 086e5f5126
commit dd1befc2a0
9 changed files with 335 additions and 209 deletions
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184
include/utils/Renderer/RenderTarget.h Normal file
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@@ -0,0 +1,184 @@
#ifndef RENDERTARGET_H
#define RENDERTARGET_H
#include "pch.hpp"
#include "extratools.h"
namespace Archimedes {
class LayoutElement {
public:
LayoutElement(unsigned int type, size_t count) : type(type), count(count) {}
~LayoutElement() {}
unsigned int getType() const { return type; }
size_t getSize() const { return size; }
size_t getCount() const { return count; }
private:
unsigned int type;
size_t size;
size_t count;
};
class VertexLayout {
public:
VertexLayout() {}
~VertexLayout() {}
const std::vector<LayoutElement>& getElements() const { return elements; }
private:
std::vector<LayoutElement> elements;
};
class VertexBuffer {
public:
VertexBuffer(const void* data, size_t size) : data(data), size(size) {
}
~VertexBuffer() {}
const void* getData() const { return data; }
size_t getSize() const { return size; }
unsigned int id;
private:
const void* data;
size_t size;
};
class VertexArray {
public:
VertexArray() {
}
~VertexArray() {}
unsigned int id;
private:
};
class IndexArray {
public:
IndexArray(const unsigned int* indices, size_t count) : indices(indices), count(count) {
}
~IndexArray() {}
const void* getIndicies() const { return indices; }
size_t getCount() const { return count; }
unsigned int id;
private:
const unsigned int* indices;
size_t count;
};
class Shader {
public:
enum class LoadType {
FromSource,
FromBin,
FromFileSource,
FromFileBin
};
Shader(const std::string& vs, const std::string& fs, LoadType loadType) : loadType(loadType) {
switch(loadType) {
case LoadType::FromSource:
this->vs = vs;
this->fs = fs;
break;
case LoadType::FromBin:
break;
case LoadType::FromFileSource:
this->vs = readSourceFile(vs);
this->fs = readSourceFile(fs);
break;
case LoadType::FromFileBin:
break;
default:
break;
}
}
~Shader() {}
std::string getVSource() const { return vs; }
std::string getFSource() const { return fs; }
unsigned int id;
private:
LoadType loadType;
std::string vs;
std::string fs;
std::string readSourceFile(const std::string& path) {
std::ifstream file(path);
if(!file.is_open()) {
return "";
}
std::string s;
while(!file.eof()) {
file >> s;
}
return s;
}
};
class RenderTarget {
public:
RenderTarget(const void* data, size_t size, unsigned int* indices, size_t count, VertexLayout layout, const std::string& vs, const std::string& fs)
: vertexBuffer(data, size),
indexArray(indices, count),
layout(layout),
shader(vs, fs, Shader::LoadType::FromFileSource) {
}
RenderTarget(VertexBuffer vb, IndexArray ia, VertexLayout vl, Shader s)
: vertexBuffer(vb),
indexArray(ia),
layout(vl),
shader(s) {
}
~RenderTarget() {}
//private:
VertexBuffer vertexBuffer;
VertexArray vertexArray;
VertexLayout layout;
IndexArray indexArray;
Shader shader;
};
}
#endif

100
include/utils/Renderer/Renderer.h
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@@ -5,89 +5,10 @@
#include "extratools.h"
#include "RenderTarget.h"
namespace Archimedes {
class VertexArray {
public:
VertexArray(const void* data, size_t size) : data(data), size(size) {
}
~VertexArray() {}
const void* getData() const { return data; }
size_t getSize() const { return size; }
unsigned int getId() const { return id; }
private:
const void* data;
size_t size;
unsigned int id;
};
class IndexArray {
public:
IndexArray(const unsigned int* indices, size_t count) : indices(indices), count(count) {
}
~IndexArray() {}
const void* getIndicies() const { return indices; }
size_t getCount() const { return count; }
private:
const unsigned int* indices;
size_t count;
unsigned int id;
};
class Shader {
public:
enum class LoadType {
FromSource,
FromFileSource,
FromFileBin
};
Shader(const std::string& source, LoadType loadType) {
switch(loadType) {
case LoadType::FromSource:
break;
case LoadType::FromFileSource:
break;
case LoadType::FromFileBin:
break;
default:
break;
}
}
~Shader() {}
unsigned int getId() const { return id; }
private:
unsigned int id;
};
class RenderTarget {
public:
RenderTarget(const void* data, size_t size, size_t count, const std::string& shader)
: data(data), size(size), count(count), shader(shader) {}
~RenderTarget() {}
private:
const void* data;
size_t size;
size_t count;
const std::string& shader;
};
class Renderer {
public:
@@ -103,7 +24,20 @@ namespace Archimedes {
virtual void render() = 0;
virtual void draw(const VertexArray&, const IndexArray&, const Shader&) = 0;
virtual Shader createShader(const std::string& vs, const std::string& fs, const Shader::LoadType& lt) = 0;
virtual RenderTarget* createRenderTarget(
const void* data,
size_t size,
unsigned int* indices,
size_t count,
VertexLayout layout,
const std::string& vs,
const std::string& fs,
const Shader::LoadType& lt
) = 0;
virtual void draw(const RenderTarget&) = 0;
virtual Renderer* getRendererImpl() = 0;

104
include/utils/Renderer/RendererImpl/RendererOpenGL/RendererOpenGL.h
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@@ -1,5 +1,4 @@
#define RENDERER_OPENGL
#ifdef RENDERER_OPENGL
#undef RENDERER_OPENGL
@@ -13,12 +12,6 @@
namespace Archimedes {
class VertexArrayOpenGL : public VertexArray {};
class IndexArrayOpenGL : public IndexArray {};
class ShaderOpenGL : public Shader {};
class RendererOpenGL : public Renderer {
public:
@@ -39,13 +32,102 @@ namespace Archimedes {
}
void draw(const VertexArray& va, const IndexArray& ia, const Shader& shader) override {
Shader createShader(const std::string& vs, const std::string& fs, const Shader::LoadType& lt) override {
Shader shader(vs, fs, lt);
glUseProgram(shader.id);
std::string vss = shader.getVSource();
std::string fss = shader.getFSource();
glBindVertexArray(va.id);
const char* vsc = vss.c_str();
const char* fsc = fss.c_str();
glDrawElements(GL_TRIANGLES, va.count, GL_UNSIGNED_INT, 0);
unsigned int vertexShader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertexShader, 1, &vsc, NULL);
glCompileShader(vertexShader);
// check for shader compile errors
int success;
char infoLog[512];
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
if (!success)
{
glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
std::cout << "ERROR::SHADER::VERTEX::COMPILATION_FAILED\n" << infoLog << std::endl;
}
// fragment shader
unsigned int fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragmentShader, 1, &fsc, NULL);
glCompileShader(fragmentShader);
// check for shader compile errors
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
if (!success)
{
glGetShaderInfoLog(fragmentShader, 512, NULL, infoLog);
std::cout << "ERROR::SHADER::FRAGMENT::COMPILATION_FAILED\n" << infoLog << std::endl;
}
// link shaders
unsigned int shaderProgram = glCreateProgram();
glAttachShader(shaderProgram, vertexShader);
glAttachShader(shaderProgram, fragmentShader);
glLinkProgram(shaderProgram);
// check for linking errors
glGetProgramiv(shaderProgram, GL_LINK_STATUS, &success);
if (!success) {
glGetProgramInfoLog(shaderProgram, 512, NULL, infoLog);
std::cout << "ERROR::SHADER::PROGRAM::LINKING_FAILED\n" << infoLog << std::endl;
}
glDeleteShader(vertexShader);
glDeleteShader(fragmentShader);
shader.id = shaderProgram;
return shader;
}
RenderTarget* createRenderTarget(const void* data, size_t size, unsigned int* indices, size_t count, VertexLayout layout, const std::string& vs, const std::string& fs, const Shader::LoadType& lt) override {
VertexBuffer vb(data, size);
IndexArray ia(indices, count);
Shader s = createShader(vs, fs, lt);
auto rt = new RenderTarget(vb, ia, layout, s);
glGenVertexArrays(1, &rt->vertexArray.id);
glGenBuffers(1, &rt->vertexBuffer.id);
glBindVertexArray(rt->vertexArray.id);
glBindBuffer(GL_ARRAY_BUFFER, rt->vertexBuffer.id);
glBufferData(GL_ARRAY_BUFFER, sizeof(data), data, GL_STATIC_DRAW);
glGenBuffers(1, &rt->indexArray.id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, rt->indexArray.id);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
glVertexAttribPointer(rt->vertexArray.id, count, GL_FLOAT, GL_FALSE, count * sizeof(float), (void*)0);
glEnableVertexAttribArray(rt->vertexArray.id);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
return rt;
};
void draw(const RenderTarget& rt) override {
glUseProgram(rt.shader.id);
glBindVertexArray(rt.vertexArray.id);
glDrawElements(GL_TRIANGLES, rt.indexArray.getCount(), GL_UNSIGNED_INT, 0);
glBindVertexArray(0);
}