From 0a8ea7e597fac904ed7fd8da4d9370a9f0711e7a Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Wed, 13 Nov 2024 12:00:55 +0300
Subject: [PATCH] disable mip-mapping in fonts

---
 src/assets/assetload_funcs.cpp  |  4 +++-
 src/graphics/core/GLTexture.cpp | 16 +++++++++++++++-
 src/graphics/core/GLTexture.hpp |  2 ++
 src/graphics/core/Texture.hpp   |  2 ++
 4 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/assets/assetload_funcs.cpp b/src/assets/assetload_funcs.cpp
index ed4f076fb..b73a3882e 100644
--- a/src/assets/assetload_funcs.cpp
+++ b/src/assets/assetload_funcs.cpp
@@ -151,7 +151,9 @@ assetload::postfunc assetload::font(
             if (page == nullptr) {
                 textures.emplace_back(nullptr);
             } else {
-                textures.emplace_back(Texture::from(page.get()));
+                auto texture = Texture::from(page.get());
+                texture->setMipMapping(false);
+                textures.emplace_back(std::move(texture));
             }
         }
         assets->store(
diff --git a/src/graphics/core/GLTexture.cpp b/src/graphics/core/GLTexture.cpp
index 4781536ef..3756d7580 100644
--- a/src/graphics/core/GLTexture.cpp
+++ b/src/graphics/core/GLTexture.cpp
@@ -59,7 +59,9 @@ std::unique_ptr<ImageData> GLTexture::readData() {
     glBindTexture(GL_TEXTURE_2D, id);
     glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, data.get());
     glBindTexture(GL_TEXTURE_2D, 0);
-    return std::make_unique<ImageData>(ImageFormat::rgba8888, width, height, data.release());
+    return std::make_unique<ImageData>(
+        ImageFormat::rgba8888, width, height, data.release()
+    );
 }
 
 void GLTexture::setNearestFilter() {
@@ -69,6 +71,18 @@ void GLTexture::setNearestFilter() {
     glBindTexture(GL_TEXTURE_2D, 0);
 }
 
+void GLTexture::setMipMapping(bool flag) {
+    bind();
+    if (flag) {
+        glTexParameteri(
+            GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST
+        );
+    } else {
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    }
+    glBindTexture(GL_TEXTURE_2D, 0);
+}
+
 std::unique_ptr<GLTexture> GLTexture::from(const ImageData* image) {
     uint width = image->getWidth();
     uint height = image->getHeight();
diff --git a/src/graphics/core/GLTexture.hpp b/src/graphics/core/GLTexture.hpp
index b5f82384b..85d7f85dc 100644
--- a/src/graphics/core/GLTexture.hpp
+++ b/src/graphics/core/GLTexture.hpp
@@ -18,6 +18,8 @@ class GLTexture : public Texture {
 
     virtual void reload(const ImageData& image) override;
 
+    virtual void setMipMapping(bool flag) override;
+
     virtual std::unique_ptr<ImageData> readData() override;
     virtual uint getId() const override;
 
diff --git a/src/graphics/core/Texture.hpp b/src/graphics/core/Texture.hpp
index ba5b066e3..bc7b73f0a 100644
--- a/src/graphics/core/Texture.hpp
+++ b/src/graphics/core/Texture.hpp
@@ -34,5 +34,7 @@ class Texture {
 
     virtual uint getId() const = 0;
 
+    virtual void setMipMapping(bool flag) = 0;
+
     static std::unique_ptr<Texture> from(const ImageData* image);
 };