[Feat] (...): Add global OpenGL state. Add gl texture state (almost complete for Minecraft) and implementation gl texture functions that Minecraft would use. Add gl error state.

2026-09-10 13:18:31 +09:00 · 2025-04-04 23:02:59 +08:00
parent c291f513ca
commit 41fefb8e54
13 changed files with 1343 additions and 20 deletions
@@ -0,0 +1,86 @@
+//
+// Created by BZLZHH on 2025/4/4.
+//
+
+#include "GLState.h"
+
+TextureState* MG_State_T::textureState;
+std::queue<GLenum> MG_State_T::glErrorQueue;
+
+namespace MG_State {
+    MG_State_T* MG_State_O;
+    
+    void Init() {
+        MG_State_O = new MG_State_T();
+        MG_State_T::textureState = new TextureState();
+    }
+    
+    void Destroy() {
+        delete MG_State_O;
+    }
+    
+    void SetError(GLenum error) {
+        if (error == GL_NO_ERROR) {
+            return;
+        }
+        MG_State_T::glErrorQueue.push(error);
+    }
+
+    GLenum GetError() {
+        if (MG_State_T::glErrorQueue.empty()) {
+            return GL_NO_ERROR;
+        }
+        GLenum error = MG_State_T::glErrorQueue.front();
+        MG_State_T::glErrorQueue.pop();
+        return error;
+    }
+    
+    // Texture
+    GLenum BindTextureUnit(GLenum textureUnit) {
+        return MG_State_T::textureState->BindUnit(textureUnit);
+    }
+    
+    GLenum CreateTexture(GLuint* texture) {
+        return MG_State_T::textureState->Create(texture);
+    }
+    
+    GLenum CreateTextures(GLsizei n, GLuint* textures) {
+        return MG_State_T::textureState->CreateN(n, textures);
+    }
+    
+    GLenum BindTexture(GLenum target, GLuint texture) {
+        return MG_State_T::textureState->Bind(target, texture);
+    }
+    
+    GLenum UploadTexture2D(GLenum target, GLint level, GLint internalFormat,
+                           GLsizei width, GLsizei height, GLint border, GLenum format,
+                           GLenum type, const void* data) {
+        return MG_State_T::textureState->Upload2D(target, level, internalFormat, width, height, border, format, type, data);
+    }
+
+    GLenum UpdateTextureRegion2D(GLenum target, GLint level, GLint xoffset,
+                                 GLint yoffset, GLsizei width, GLsizei height, GLenum format,
+                                 GLenum type, const GLvoid* data) {
+        return MG_State_T::textureState->UpdateRegion2D(target, level, xoffset, yoffset, width, height, format, type, data);
+    }
+    
+    GLenum SetTexturePropertyInt(GLenum target, GLenum pname, GLint param) {
+        return MG_State_T::textureState->SetTexturePropertyInt(target, pname, param);
+    }
+    
+    GLenum SetTexturePropertyFloat(GLenum target, GLenum pname, GLfloat param) {
+        return MG_State_T::textureState->SetTexturePropertyFloat(target, pname, param);
+    }
+    
+    GLenum DeleteTexture(GLuint texture) {
+        return MG_State_T::textureState->Delete(texture);
+    }
+    
+    GLenum DeleteTextures(GLsizei n, const GLuint* textures) { 
+        return MG_State_T::textureState->DeleteN(n, textures);
+    }
+    
+    GLenum GetTextureLevelPropertyIntVector(GLenum target, GLint level, GLenum pname, GLint* params) {
+        return MG_State_T::textureState->GetLevelPropertyIntVector(target, level, pname, params);
+    }
+}