egl: Add support for more EGLImage extensions to EGL core.

[mesa.git] / src / egl / main / eglmisc.c

diff --git a/src/egl/main/eglmisc.c b/src/egl/main/eglmisc.c
index e66913320b237e41bba93e0d803d03b73c44f5fc..984e426686e4119d38a3a75d5050a56b3eb900cd 100644 (file)
--- a/src/egl/main/eglmisc.c
+++ b/src/egl/main/eglmisc.c
@@ -33,11 +33,35 @@
 
 #include <assert.h>
 #include <string.h>
-#include "eglglobals.h"
+#include "eglcurrent.h"
 #include "eglmisc.h"
 #include "egldisplay.h"
 
 
+/**
+ * Copy the extension into the string and update the string pointer.
+ */
+static EGLint
+_eglAppendExtension(char **str, const char *ext)
+{
+   char *s = *str;
+   EGLint len = strlen(ext);
+
+   if (s) {
+      memcpy(s, ext, len);
+      s[len++] = ' ';
+      s[len] = '\0';
+
+      *str += len;
+   }
+   else {
+      len++;
+   }
+
+   return len;
+}
+
+
 /**
  * Examine the individual extension enable/disable flags and recompute
  * the driver's Extensions string.
@@ -45,16 +69,34 @@
 static void
 _eglUpdateExtensionsString(_EGLDisplay *dpy)
 {
+#define _EGL_CHECK_EXTENSION(ext)                                          \
+   do {                                                                    \
+      if (dpy->Extensions.ext) {                                           \
+         _eglAppendExtension(&exts, "EGL_" #ext);                          \
+         assert(exts <= dpy->Extensions.String + _EGL_MAX_EXTENSIONS_LEN); \
+      }                                                                    \
+   } while (0)
+
    char *exts = dpy->Extensions.String;
 
    if (exts[0])
       return;
 
-   if (dpy->Extensions.MESA_screen_surface)
-      strcat(exts, "EGL_MESA_screen_surface ");
-   if (dpy->Extensions.MESA_copy_context)
-      strcat(exts, "EGL_MESA_copy_context ");
-   assert(strlen(exts) < _EGL_MAX_EXTENSIONS_LEN);
+   _EGL_CHECK_EXTENSION(MESA_screen_surface);
+   _EGL_CHECK_EXTENSION(MESA_copy_context);
+
+   _EGL_CHECK_EXTENSION(KHR_image_base);
+   _EGL_CHECK_EXTENSION(KHR_image_pixmap);
+   if (dpy->Extensions.KHR_image_base && dpy->Extensions.KHR_image_pixmap)
+      _eglAppendExtension(&exts, "EGL_KHR_image");
+
+   _EGL_CHECK_EXTENSION(KHR_vg_parent_image);
+   _EGL_CHECK_EXTENSION(KHR_gl_texture_2D_image);
+   _EGL_CHECK_EXTENSION(KHR_gl_texture_cubemap_image);
+   _EGL_CHECK_EXTENSION(KHR_gl_texture_3D_image);
+   _EGL_CHECK_EXTENSION(KHR_gl_renderbuffer_image);
+
+#undef _EGL_CHECK_EXTENSION
 }