egl: add eglCreateImage (v2)

v2: - use calloc
    - return BAD_ALLOC if calloc fails

Reviewed-by: Chad Versace <chad.versace@intel.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 9696869..e4fd44e 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -251,6 +251,31 @@ _eglUnlockDisplay(_EGLDisplay *dpy)
 }
 
 
+static EGLint *
+_eglConvertAttribsToInt(const EGLAttrib *attr_list)
+{
+   EGLint *int_attribs = NULL;
+
+   /* Convert attributes from EGLAttrib[] to EGLint[] */
+   if (attr_list) {
+      int i, size = 0;
+
+      while (attr_list[size] != EGL_NONE)
+         size += 2;
+
+      size += 1; /* add space for EGL_NONE */
+
+      int_attribs = calloc(size, sizeof(int_attribs[0]));
+      if (!int_attribs)
+         return NULL;
+
+      for (i = 0; i < size; i++)
+         int_attribs[i] = attr_list[i];
+   }
+   return int_attribs;
+}
+
+
 /**
  * This is typically the first EGL function that an application calls.
  * It associates a private _EGLDisplay object to the native display.
@@ -1255,6 +1280,22 @@ eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
 }
 
 
+EGLImage EGLAPIENTRY
+eglCreateImage(EGLDisplay dpy, EGLContext ctx, EGLenum target,
+               EGLClientBuffer buffer, const EGLAttrib *attr_list)
+{
+   EGLImage image;
+   EGLint *int_attribs = _eglConvertAttribsToInt(attr_list);
+
+   if (attr_list && !int_attribs)
+      RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_NO_IMAGE);
+
+   image = eglCreateImageKHR(dpy, ctx, target, buffer, int_attribs);
+   free(int_attribs);
+   return image;
+}
+
+
 EGLBoolean EGLAPIENTRY
 eglDestroyImage(EGLDisplay dpy, EGLImage image)
 {
@@ -1751,6 +1792,7 @@ eglGetProcAddress(const char *procname)
       { "eglClientWaitSync", (_EGLProc) eglClientWaitSync },
       { "eglGetSyncAttrib", (_EGLProc) eglGetSyncAttrib },
       { "eglWaitSync", (_EGLProc) eglWaitSync },
+      { "eglCreateImage", (_EGLProc) eglCreateImage },
       { "eglDestroyImage", (_EGLProc) eglDestroyImage },
 #ifdef EGL_MESA_drm_display
       { "eglGetDRMDisplayMESA", (_EGLProc) eglGetDRMDisplayMESA },