1 files changed, 66 insertions, 0 deletions
diff --git a/src/Platform/OpenGL/OpenGLTexture.cpp b/src/Platform/OpenGL/OpenGLTexture.cpp
new file mode 100644
index 0000000..02252d1
--- /dev/null
+++ b/src/Platform/OpenGL/OpenGLTexture.cpp
@@ -0,0 +1,66 @@
+#include "OpenGLTexture.h"
+#include <iostream>
+
+namespace Donut
+{
+    OpenGLTexture2D::OpenGLTexture2D(uint32_t width, uint32_t height)
+        : m_Width(width), m_Height(height)
+    {
+        m_InternalFormat = GL_RGBA8;
+        m_DataFormat = GL_RGBA;
+
+        glCreateTextures(GL_TEXTURE_2D, 1, &m_RendererID);
+        glTextureStorage2D(m_RendererID, 1, m_InternalFormat, m_Width, m_Height);
+
+        glTextureParameteri(m_RendererID, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTextureParameteri(m_RendererID, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+        glTextureParameteri(m_RendererID, GL_TEXTURE_WRAP_S, GL_REPEAT);
+        glTextureParameteri(m_RendererID, GL_TEXTURE_WRAP_T, GL_REPEAT);
+    }
+
+    // TODO: Texture Loading
+    OpenGLTexture2D::OpenGLTexture2D(const std::string& path)
+        : m_Path(path)
+    {
+        m_Width = 1;
+        m_Height = 1;
+        m_InternalFormat = GL_RGBA8;
+        m_DataFormat = GL_RGBA;
+
+        glCreateTextures(GL_TEXTURE_2D, 1, &m_RendererID);
+        glTextureStorage2D(m_RendererID, 1, m_InternalFormat, m_Width, m_Height);
+
+        glTextureParameteri(m_RendererID, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTextureParameteri(m_RendererID, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+        glTextureParameteri(m_RendererID, GL_TEXTURE_WRAP_S, GL_REPEAT);
+        glTextureParameteri(m_RendererID, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+        uint32_t whitePixel = 0xFFFFFFFF;
+        glTextureSubImage2D(m_RendererID, 0, 0, 0, m_Width, m_Height, m_DataFormat, GL_UNSIGNED_BYTE, &whitePixel);
+
+        std::cout << "Created default texture (stb_image not available for loading: " << path << ")" << std::endl;
+    }
+
+    OpenGLTexture2D::~OpenGLTexture2D()
+    {
+        glDeleteTextures(1, &m_RendererID);
+    }
+
+    void OpenGLTexture2D::SetData(void* data, uint32_t size)
+    {
+        uint32_t bpp = m_DataFormat == GL_RGBA ? 4 : 3;
+        if (size != m_Width * m_Height * bpp)
+        {
+            std::cout << "Data must be entire texture!" << std::endl;
+            return;
+        }
+        glTextureSubImage2D(m_RendererID, 0, 0, 0, m_Width, m_Height, m_DataFormat, GL_UNSIGNED_BYTE, data);
+    }
+
+    void OpenGLTexture2D::Bind(uint32_t slot) const
+    {
+        glBindTextureUnit(slot, m_RendererID);
+    }
+};
+\ No newline at end of file