refactor textures access

src/graphics/core/Batch2D.cpp

@@ -75,7 +75,7 @@ void Batch2D::vertex(
     buffer[index++] = a;
 }
 
-void Batch2D::texture(Texture* new_texture){
+void Batch2D::texture(const Texture* new_texture){
     if (currentTexture == new_texture) {
         return;
     }

src/graphics/core/Batch2D.hpp

@@ -17,7 +17,7 @@ class Batch2D : public Flushable {
     std::unique_ptr<Texture> blank;
     size_t index;
     glm::vec4 color;
-    Texture* currentTexture;
+    const Texture* currentTexture;
     DrawPrimitive primitive = DrawPrimitive::triangle;
     UVRegion region {0.0f, 0.0f, 1.0f, 1.0f};
 
@@ -40,7 +40,7 @@ public:
     ~Batch2D();
 
     void begin();
-    void texture(Texture* texture);
+    void texture(const Texture* texture);
     void untexture();
     void setRegion(UVRegion region);
     void sprite(float x, float y, float w, float h, const UVRegion& region, glm::vec4 tint);

src/graphics/core/Cubemap.cpp

@@ -30,10 +30,10 @@ Cubemap::Cubemap(uint width, uint height, ImageFormat imageFormat)
     }
 }
 
-void Cubemap::bind(){
+void Cubemap::bind() const {
     glBindTexture(GL_TEXTURE_CUBE_MAP, id);
 }
 
-void Cubemap::unbind() {
+void Cubemap::unbind() const {
     glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
 }

src/graphics/core/Cubemap.hpp

@@ -7,6 +7,6 @@ class Cubemap : public GLTexture {
 public:
     Cubemap(uint width, uint height, ImageFormat format);
 
-    virtual void bind() override;
-    virtual void unbind() override;
+    virtual void bind() const override;
+    virtual void unbind() const override;
 };

src/graphics/core/GLTexture.cpp

@@ -33,11 +33,11 @@ GLTexture::~GLTexture() {
     glDeleteTextures(1, &id);
 }
 
-void GLTexture::bind(){
+void GLTexture::bind() const {
     glBindTexture(GL_TEXTURE_2D, id);
 }
 
-void GLTexture::unbind() {
+void GLTexture::unbind() const {
     glBindTexture(GL_TEXTURE_2D, 0);
 }
 

src/graphics/core/GLTexture.hpp

@@ -10,8 +10,8 @@ public:
     GLTexture(const ubyte* data, uint width, uint height, ImageFormat format);
     virtual ~GLTexture();
 
-    virtual void bind() override;
-    virtual void unbind() override;
+    virtual void bind() const override;
+    virtual void unbind() const override;
     virtual void reload(const ubyte* data);
 
     void setNearestFilter();

src/graphics/core/Texture.hpp

@@ -17,8 +17,8 @@ public:
 
     virtual ~Texture() {}
 
-    virtual void bind() = 0;
-    virtual void unbind() = 0;
+    virtual void bind() const = 0;
+    virtual void unbind() const = 0;
 
     virtual void reload(const ImageData& image) = 0;