[Feat] (...): Add ProgramState while implementing these gl functions. Rename some functions in MG_State.

2026-09-09 20:58:31 +09:00 · 2025-05-03 02:26:03 +08:00
parent 282e2496da
commit 00140d8b57
16 changed files with 602 additions and 74 deletions
@@ -0,0 +1,68 @@
+//
+// Created by BZLZHH on 2025/5/1.
+//
+
+#ifndef MOBILEGL_PROGRAMSTATE_H
+#define MOBILEGL_PROGRAMSTATE_H
+#define MOBILEGL_GLSTATE_H
+
+#include "../../../Includes.h"
+
+struct ShaderObject {
+    GLenum type;
+    std::string source;
+    UncertainBool compiled;
+    GLint compileStatus;
+    std::string infoLog;
+    bool markedForDeletion;
+};
+
+struct ProgramObject {
+    std::vector<GLuint> attachedShaders;
+    UncertainBool linked;
+    GLint linkStatus;
+    std::string infoLog;
+    std::unordered_map<std::string, GLint> attribBindings;
+    std::unordered_map<std::string, GLint> attribLocations;
+    std::unordered_map<std::string, GLint> uniformLocations;
+    bool markedForDeletion;
+};
+
+class ProgramState {
+private:
+    std::unordered_map<GLuint, ShaderObject> shaders_;
+    std::unordered_map<GLuint, ProgramObject> programs_;
+    std::set<GLuint> freeShaderIds_;
+    std::set<GLuint> freeProgramIds_;
+    GLuint lastShaderId_ = 0;
+    GLuint lastProgramId_ = 0;
+    GLuint currentProgram_ = 0;
+
+public:
+    // Return: the validity of the operation, according to OpenGL 3 standard
+    GLenum CreateShader(GLenum type, GLuint* shader);
+    GLenum CreateProgram(GLuint* program);
+    GLenum DeleteShader(GLuint shader);
+    GLenum DeleteProgram(GLuint program);
+    GLenum LinkShaderToProgram(GLuint program, GLuint shader);
+    GLenum UploadShaderSource(GLuint shader, GLsizei count, const GLchar** string, const GLint* length);
+    GLenum BuildShaderStage(GLuint shader);
+    GLenum FinalizeProgramPipeline(GLuint program);
+    GLenum ActivateRenderProgram(GLuint program);
+    GLenum DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name);
+    GLint QueryProgramAttributeBinding(GLuint program, const GLchar* name);
+    GLint QueryProgramUniformLocation(GLuint program, const GLchar* name);
+    GLenum QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params);
+    GLenum QueryShaderStateIntVector(GLuint shader, GLenum pname, GLint* params);
+    
+    GLuint GetCurrentProgram() const;
+    bool SetProgramStatus(GLuint program, GLboolean status);
+    bool SetShaderStatus(GLuint shader, GLboolean status);
+
+private:
+    bool ValidateShader_(GLuint shader);
+    bool ValidateProgram_(GLuint program);
+    void CleanupShaders_();
+};
+
+#endif // MOBILEGL_PROGRAMSTATE_H