backend_opengl_private.h

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#ifndef BACKEND_OPENGL_PRIVATE_H
#define BACKEND_OPENGL_PRIVATE_H
 
#include "graphics_private.h"
 
#include <SDL3/SDL.h>
#include <glad/gl.h>
#include <stdbool.h>
 
typedef struct {
    SDL_GLContext gl_context;
    GLuint program;
    GLuint vao;
    GLuint vbo;
    GLuint fbo;
    GLuint fbo_color_tex;
    GLuint fbo_depth_rbo;
    int fbo_width;
    int fbo_height;
    GLuint gl_textures[DTTR_MAX_STAGED_TEXTURES];
    GLuint deferred_gl_destroys[DTTR_MAX_STAGED_TEXTURES];
    int deferred_gl_destroy_count;
    GLuint gl_samplers[DTTR_SAMPLER_COUNT];
    GLuint dummy_texture;
    GLuint video_texture;
    int video_width;
    int video_height;
    void *vertex_staging;
    GLint loc_mvp;
    GLint loc_screen_size;
    GLint loc_is_2d;
    GLint loc_has_texture;
    GLint loc_color_op;
    GLint loc_color_arg1;
    GLint loc_color_arg2;
    GLint loc_alpha_op;
    GLint loc_alpha_arg1;
    GLint loc_alpha_arg2;
    GLint loc_texture;
    GLuint msaa_fbo;
    GLuint msaa_color_rbo;
    GLuint msaa_depth_rbo;
    int msaa_samples;
    GLuint pending_mipmap_textures[DTTR_MAX_STAGED_TEXTURES];
    int pending_mipmap_count;
} opengl_backend_data;
 
#endif // BACKEND_OPENGL_PRIVATE_H