From 19ad9aa1cb58691c8a0188260b5799e823363094 Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Mon, 4 Dec 2017 12:43:22 +0100
Subject: [PATCH] Add resolve extensions callback

---
 gfx/drivers/gl.c                          | 3 +++
 gfx/drivers_renderchain/gl1_renderchain.c | 7 ++++---
 gfx/drivers_renderchain/gl2_renderchain.c | 6 ++++++
 gfx/video_driver.h                        | 4 ++++
 4 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/gfx/drivers/gl.c b/gfx/drivers/gl.c
index 3cc6adf629..b7302756e8 100644
--- a/gfx/drivers/gl.c
+++ b/gfx/drivers/gl.c
@@ -1371,6 +1371,9 @@ static bool resolve_extensions(gl_t *gl, const char *context_ident)
 
    video_driver_unset_rgba();
 
+   if (gl->renderchain_driver->resolve_extensions)
+      gl->renderchain_driver->resolve_extensions(gl, gl->renderchain_data, context_ident);
+
 #if defined(HAVE_OPENGLES) && !defined(HAVE_PSGL)
    if (!gl_check_capability(GL_CAPS_BGRA8888))
    {
diff --git a/gfx/drivers_renderchain/gl1_renderchain.c b/gfx/drivers_renderchain/gl1_renderchain.c
index a9762cf0ba..56a5d27650 100644
--- a/gfx/drivers_renderchain/gl1_renderchain.c
+++ b/gfx/drivers_renderchain/gl1_renderchain.c
@@ -327,10 +327,11 @@ gl_renderchain_driver_t gl2_renderchain = {
    NULL,                                  /* renderchain_init */
    NULL,                                  /* init_hw_render */
    gl1_renderchain_free,
-   NULL,                                  /* deinit_hw_render */
-   NULL,                                  /* start_render */
+   NULL,                                  /* deinit_hw_render     */
+   NULL,                                  /* start_render         */
    NULL,                                  /* check_fbo_dimensions */
    NULL,                                  /* recompute_pass_sizes */
-   NULL,                                  /* renderchain_render */
+   NULL,                                  /* renderchain_render   */
+   NULL,                                  /* resolve_extensions   */
    "gl1",
 };
diff --git a/gfx/drivers_renderchain/gl2_renderchain.c b/gfx/drivers_renderchain/gl2_renderchain.c
index 07934a6d52..5e6d5bcad5 100644
--- a/gfx/drivers_renderchain/gl2_renderchain.c
+++ b/gfx/drivers_renderchain/gl2_renderchain.c
@@ -1461,6 +1461,11 @@ static void gl2_renderchain_init_textures_reference(
 #endif
 }
 
+static void gl2_renderchain_resolve_extensions(void *data,
+      void *chain_data, const char *context_ident)
+{
+}
+
 gl_renderchain_driver_t gl2_renderchain = {
    NULL,                                        /* set_coords */
    NULL,                                        /* set_mvp    */
@@ -1513,5 +1518,6 @@ gl_renderchain_driver_t gl2_renderchain = {
    gl2_renderchain_check_fbo_dimensions,
    gl2_renderchain_recompute_pass_sizes,
    gl2_renderchain_render,
+   gl2_renderchain_resolve_extensions,
    "gl2",
 };
diff --git a/gfx/video_driver.h b/gfx/video_driver.h
index 33765da5dd..1519bdc7a3 100644
--- a/gfx/video_driver.h
+++ b/gfx/video_driver.h
@@ -904,6 +904,10 @@ typedef struct gl_renderchain_driver
          uint64_t frame_count,
          const struct video_tex_info *tex_info,
          const struct video_tex_info *feedback_info);
+   void (*resolve_extensions)(
+         void *data,
+         void *chain_data,
+         const char *context_ident);
    const char *ident;
 } gl_renderchain_driver_t;