From 48e416ee2f0277114848af4f36216f7931336b54 Mon Sep 17 00:00:00 2001
From: Sylvain Munaut <tnt@246tNt.com>
Date: Tue, 8 Aug 2023 02:03:27 +0200
Subject: [PATCH] egl: Export the MESA GL Interop functions through
 eglGetProcAddress

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Antonio Gomes <antoniospg100@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24573>
---
 src/egl/egl-entrypoint-check.py      | 12 +++++++++---
 src/egl/generate/eglFunctionList.py  |  4 ++++
 src/egl/generate/egl_other.xml       | 28 ++++++++++++++++++++++++++++
 src/egl/generate/gen_egl_dispatch.py |  1 +
 src/egl/main/eglapi.c                |  4 +++-
 src/egl/main/eglentrypoint.h         |  4 ++++
 6 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/src/egl/egl-entrypoint-check.py b/src/egl/egl-entrypoint-check.py
index 967ea0646ba..c9aaa7f3515 100644
--- a/src/egl/egl-entrypoint-check.py
+++ b/src/egl/egl-entrypoint-check.py
@@ -4,7 +4,8 @@ import argparse
 from generate.eglFunctionList import EGL_FUNCTIONS as GLVND_ENTRYPOINTS
 
 
-PREFIX = 'EGL_ENTRYPOINT('
+PREFIX1 = 'EGL_ENTRYPOINT('
+PREFIX2 = 'EGL_ENTRYPOINT2('
 SUFFIX = ')'
 
 
@@ -69,9 +70,14 @@ def main():
     entrypoints = []
     for line in lines:
         line = line.strip()
-        if line.startswith(PREFIX):
+        if line.startswith(PREFIX1):
             assert line.endswith(SUFFIX)
-            entrypoints.append(line[len(PREFIX):-len(SUFFIX)])
+            entrypoints.append(line[len(PREFIX1):-len(SUFFIX)])
+        if line.startswith(PREFIX2):
+            assert line.endswith(SUFFIX)
+            entrypoint = line[len(PREFIX2):-len(SUFFIX)]
+            entrypoint = entrypoint.split(',')[0].strip()
+            entrypoints.append(entrypoint)
 
     check_entrypoint_sorted(entrypoints)
 
diff --git a/src/egl/generate/eglFunctionList.py b/src/egl/generate/eglFunctionList.py
index c1777eb7592..5076ced6f11 100644
--- a/src/egl/generate/eglFunctionList.py
+++ b/src/egl/generate/eglFunctionList.py
@@ -242,5 +242,9 @@ EGL_FUNCTIONS = (
     # EGL_KHR_partial_update
     _eglFunc("eglSetDamageRegionKHR",                "display"),
 
+    # EGL_MESA_gl_interop
+    _eglFunc("eglGLInteropQueryDeviceInfoMESA",      "display"),
+    _eglFunc("eglGLInteropExportObjectMESA",         "display"),
+    _eglFunc("eglGLInteropFlushObjectsMESA",         "display"),
 )
 
diff --git a/src/egl/generate/egl_other.xml b/src/egl/generate/egl_other.xml
index 74c70ccdbef..5a7c4adbf4f 100644
--- a/src/egl/generate/egl_other.xml
+++ b/src/egl/generate/egl_other.xml
@@ -31,6 +31,11 @@
         This file contains any EGL extension functions that are missing from
         the normal egl.xml list.
     </comment>
+    <types>
+        <type>struct <name>mesa_glinterop_device_info</name>;</type>
+        <type>struct <name>mesa_glinterop_export_in</name>;</type>
+        <type>struct <name>mesa_glinterop_export_out</name>;</type>
+    </types>
     <commands namespace="EGL">
         <!-- EGL_WL_bind_wayland_display -->
         <command>
@@ -77,6 +82,29 @@
             <param><ptype>EGLint *</ptype> <name>numerator</name></param>
             <param><ptype>EGLint *</ptype> <name>denominator</name></param>
         </command>
+
+        <!-- EGL_MESA_gl_interop -->
+        <command>
+            <proto><ptype>EGLint</ptype> <name>eglGLInteropQueryDeviceInfoMESA</name></proto>
+            <param><ptype>EGLDisplay</ptype> <name>dpy</name></param>
+            <param><ptype>EGLContext</ptype> <name>ctx</name></param>
+            <param>struct <ptype>mesa_glinterop_device_info</ptype> *<name>out</name></param>
+        </command>
+        <command>
+            <proto><ptype>EGLint</ptype> <name>eglGLInteropExportObjectMESA</name></proto>
+            <param><ptype>EGLDisplay</ptype> <name>dpy</name></param>
+            <param><ptype>EGLContext</ptype> <name>ctx</name></param>
+            <param>struct <ptype>mesa_glinterop_export_in</ptype> *<name>in</name></param>
+            <param>struct <ptype>mesa_glinterop_export_out</ptype> *<name>out</name></param>
+        </command>
+        <command>
+            <proto><ptype>EGLint</ptype> <name>eglGLInteropFlushObjectsMESA</name></proto>
+            <param><ptype>EGLDisplay</ptype> <name>dpy</name></param>
+            <param><ptype>EGLContext</ptype> <name>ctx</name></param>
+            <param>unsigned <name>count</name></param>
+            <param>struct <ptype>mesa_glinterop_export_in</ptype> *<name>objects</name></param>
+            <param>GLsync *<name>sync</name></param>
+        </command>
     </commands>
 </registry>
 
diff --git a/src/egl/generate/gen_egl_dispatch.py b/src/egl/generate/gen_egl_dispatch.py
index be546bbda77..dccc7f3cbaa 100644
--- a/src/egl/generate/gen_egl_dispatch.py
+++ b/src/egl/generate/gen_egl_dispatch.py
@@ -102,6 +102,7 @@ def generateHeader(functions):
     #include <EGL/eglext.h>
     #include <EGL/eglmesaext.h>
     #include <EGL/eglext_angle.h>
+    #include <GL/mesa_glinterop.h>
     #include "glvnd/libeglabi.h"
 
     """.lstrip("\n"))
diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 6053eb7b8a0..d24eb04f41c 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -2797,8 +2797,10 @@ PUBLIC __eglMustCastToProperFunctionPointerType EGLAPIENTRY
 eglGetProcAddress(const char *procname)
 {
    static const struct _egl_entrypoint egl_functions[] = {
-#define EGL_ENTRYPOINT(f) {.name = #f, .function = (_EGLProc)f},
+#define EGL_ENTRYPOINT(f)     {.name = #f, .function = (_EGLProc)f},
+#define EGL_ENTRYPOINT2(n, f) {.name = #n, .function = (_EGLProc)f},
 #include "eglentrypoint.h"
+#undef EGL_ENTRYPOINT2
 #undef EGL_ENTRYPOINT
    };
    _EGLProc ret = NULL;
diff --git a/src/egl/main/eglentrypoint.h b/src/egl/main/eglentrypoint.h
index dc67301914e..88f88e77966 100644
--- a/src/egl/main/eglentrypoint.h
+++ b/src/egl/main/eglentrypoint.h
@@ -1,6 +1,7 @@
 /* core functions queryable in the presence of
  * EGL_KHR_get_all_proc_addresses or EGL 1.5
  */
+/* clang-format off */
 /* alphabetical order */
 EGL_ENTRYPOINT(eglBindAPI)
 EGL_ENTRYPOINT(eglBindTexImage)
@@ -36,6 +37,9 @@ EGL_ENTRYPOINT(eglDupNativeFenceFDANDROID)
 EGL_ENTRYPOINT(eglExportDMABUFImageMESA)
 EGL_ENTRYPOINT(eglExportDMABUFImageQueryMESA)
 EGL_ENTRYPOINT(eglExportDRMImageMESA)
+EGL_ENTRYPOINT2(eglGLInteropExportObjectMESA, MesaGLInteropEGLExportObject)
+EGL_ENTRYPOINT2(eglGLInteropFlushObjectsMESA, MesaGLInteropEGLFlushObjects)
+EGL_ENTRYPOINT2(eglGLInteropQueryDeviceInfoMESA, MesaGLInteropEGLQueryDeviceInfo)
 EGL_ENTRYPOINT(eglGetConfigAttrib)
 EGL_ENTRYPOINT(eglGetConfigs)
 EGL_ENTRYPOINT(eglGetCurrentContext)