Support texture usage

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "external/stb_image"]
+	path = external/stb_image
+	url = https://github.com/nothings/stb.git

Include/Graphics/ImageLoader.h

@@ -0,0 +1,32 @@
+/*
+ * File: ImageLoader.h
+ * Author: kissholic
+ * Copyright (c) 2024 kissholic. All wrongs reserved.
+ */
+
+#pragma once
+
+#include <filesystem>
+
+namespace be {
+
+
+struct ImageWrapper {
+    ImageWrapper() = default;
+    ImageWrapper(unsigned char* Data, int Width, int Height, int Channels)
+        : Data(Data), Width(Width), Height(Height), Channels(Channels)
+    {}
+
+    ~ImageWrapper();
+
+    unsigned char* Data;
+    int Width;
+    int Height;
+    int Channels;
+};
+
+
+ImageWrapper LoadImage(std::filesystem::path const& ImagePath);
+
+
+} // namespace be

Include/Graphics/Texture.h

@@ -0,0 +1,33 @@
+/*
+ * File: Texture.h
+ * Author: kissholic
+ * Copyright (c) 2024 kissholic. All wrongs reserved.
+ */
+
+#pragma once
+
+#include <string>
+#include "ImageLoader.h"
+
+namespace be {
+
+
+class Texture {
+public:
+    Texture(ImageWrapper& Source);
+    ~Texture();
+
+    unsigned int GetTextureHandle() const noexcept { return mTextureHandle; }
+    int GetWidth() const noexcept { return mWidth; }
+    int GetHeight() const noexcept { return mHeight; }
+    int GetChannels() const noexcept { return mChannels; }
+
+private:
+    unsigned int mTextureHandle;
+    int mWidth;
+    int mHeight;
+    int mChannels;
+};
+
+
+} // namespace be

Source/Graphics/ImageLoader.cpp

@@ -0,0 +1,32 @@
+/*
+ * File: ImageLoader.cpp
+ * Author: kissholic
+ * Copyright (c) 2024 kissholic. All wrongs reserved.
+ */
+
+#include "Graphics/ImageLoader.h"
+#include "spdlog/spdlog.h"
+
+#include "stb_image.h"
+
+namespace be {
+
+
+ImageWrapper::~ImageWrapper()
+{
+    stbi_image_free(Data);
+}
+
+ImageWrapper LoadImage(std::filesystem::path const& ImagePath) {
+    ImageWrapper image;
+
+    image.Data = stbi_load(ImagePath.c_str(), &image.Width, &image.Height, &image.Channels, 0);
+    if (image.Data == nullptr) {
+        spdlog::error("Failed to load image: {}", ImagePath.c_str());
+    }
+
+    return image;
+}
+
+
+} // namespace be

Source/Graphics/STBImage.cpp

@@ -0,0 +1,11 @@
+/*
+ * File: STBImage.cpp
+ * Author: kissholic
+ * Copyright (c) 2024 kissholic. All wrongs reserved.
+ */
+
+
+#define STB_IMAGE_IMPLEMENTATION
+#include "stb_image.h"
+
+

Source/Graphics/Texture.cpp

@@ -0,0 +1,36 @@
+/*
+ * File: Texture.cpp
+ * Author: kissholic
+ * Copyright (c) 2024 kissholic. All wrongs reserved.
+ */
+
+#include "Graphics/Texture.h"
+#include "Graphics/ImageLoader.h"
+#include "glad/glad.h"
+
+
+
+namespace be {
+
+
+Texture::Texture(ImageWrapper& Source)
+        : mTextureHandle(0), mWidth(Source.Width), mHeight(Source.Height), mChannels(Source.Channels) {
+    glGenTextures(1, &mTextureHandle);
+    glBindTexture(GL_TEXTURE_2D, mTextureHandle);
+
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, mWidth, mHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, Source.Data);
+    glGenerateMipmap(GL_TEXTURE_2D);
+}
+
+
+Texture::~Texture() {
+    glDeleteTextures(1, &mTextureHandle);
+}
+
+
+} // namespace be

xmake.lua

@@ -13,5 +13,7 @@ set_configdir("$(buildir)/Config")
 add_configfiles("BEConfig.h.in")
 add_includedirs("$(buildir)/Config")
 
+add_includedirs("external/stb_image")
+
 add_includedirs("Include")
 includes("Source")