From d90cb92bd9029713b421b64c850ca263a6cb7ee4 Mon Sep 17 00:00:00 2001
From: bl1nc <bl1nch.pro@gmail.com>
Date: Fri, 2 Feb 2024 07:01:41 +0600
Subject: [PATCH] OpenGL GetProcAddress function Make reset_gl_context function
 callable from python https://github.com/kivy/kivy/issues/8457

---
 kivy/graphics/cgl_backend/__init__.py  | 0
 kivy/graphics/cgl_backend/cgl_sdl2.pyx | 7 +++++++
 kivy/graphics/fbo.pyx                  | 5 +++++
 kivy/graphics/instructions.pxd         | 2 +-
 kivy/graphics/instructions.pyx         | 2 +-
 5 files changed, 14 insertions(+), 2 deletions(-)
 delete mode 100644 kivy/graphics/cgl_backend/__init__.py

diff --git a/kivy/graphics/cgl_backend/__init__.py b/kivy/graphics/cgl_backend/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/kivy/graphics/cgl_backend/cgl_sdl2.pyx b/kivy/graphics/cgl_backend/cgl_sdl2.pyx
index f63c707ba7..e9fd1b0611 100644
--- a/kivy/graphics/cgl_backend/cgl_sdl2.pyx
+++ b/kivy/graphics/cgl_backend/cgl_sdl2.pyx
@@ -6,12 +6,19 @@ include "../common.pxi"
 include "../../include/config.pxi"
 
 from kivy.graphics.cgl cimport *
+from libc.stdint cimport intptr_t
 
 IF USE_SDL2:
     cdef extern from "SDL.h":
         void *SDL_GL_GetProcAddress(const char*)
 
 
+def gl_get_proc_address(name):
+    cdef char *c_name = name
+    cdef void * p = SDL_GL_GetProcAddress(c_name)
+    return <intptr_t>p
+
+
 cpdef is_backend_supported():
     return USE_SDL2
 
diff --git a/kivy/graphics/fbo.pyx b/kivy/graphics/fbo.pyx
index cbed0416dc..27922a0ea0 100644
--- a/kivy/graphics/fbo.pyx
+++ b/kivy/graphics/fbo.pyx
@@ -430,6 +430,11 @@ cdef class Fbo(RenderContext):
                 self.observers.remove(cb)
                 continue
 
+    @property
+    def gl_id(self):
+        '''OpenGL id of framebuffer
+        '''
+        return self.buffer_id
 
     @property
     def size(self):
diff --git a/kivy/graphics/instructions.pxd b/kivy/graphics/instructions.pxd
index f24f233cf2..e089905c89 100644
--- a/kivy/graphics/instructions.pxd
+++ b/kivy/graphics/instructions.pxd
@@ -14,7 +14,7 @@ from .shader cimport *
 from .texture cimport Texture
 from kivy._event cimport ObjectWithUid
 
-cdef void reset_gl_context()
+cpdef void reset_gl_context()
 
 cdef class Instruction
 cdef class InstructionGroup(Instruction)
diff --git a/kivy/graphics/instructions.pyx b/kivy/graphics/instructions.pyx
index db170144e4..20925b6203 100644
--- a/kivy/graphics/instructions.pyx
+++ b/kivy/graphics/instructions.pyx
@@ -27,7 +27,7 @@ cdef int _need_reset_gl = 1
 cdef int _active_texture = -1
 cdef list canvas_list = []
 
-cdef void reset_gl_context():
+cpdef void reset_gl_context():
     global _need_reset_gl, _active_texture
     _need_reset_gl = 0
     _active_texture = 0