Mesa (master): egl: Add _eglConvertIntsToAttribs()
Chad Versace
chadversary at kemper.freedesktop.org
Tue Oct 4 21:12:56 UTC 2016
Module: Mesa
Branch: master
Commit: 3e0d575a6d727c4334b783c443a5e1980dca43b4
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3e0d575a6d727c4334b783c443a5e1980dca43b4
Author: Chad Versace <chadversary at chromium.org>
Date: Tue Sep 27 13:27:17 2016 -0700
egl: Add _eglConvertIntsToAttribs()
This function converts an attribute list from EGLint[] to EGLAttrib[].
Will be used in following patches to cleanup EGLSync attribute parsing.
Reviewed-by: Emil Velikov <emil.velikov at collabora.com>
---
src/egl/main/eglapi.c | 41 +++++++++++++++++++++++++++++++++++++++++
src/egl/main/eglapi.h | 2 ++
2 files changed, 43 insertions(+)
diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 07f6794..697957e 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -251,6 +251,47 @@ _eglUnlockDisplay(_EGLDisplay *dpy)
}
+/**
+ * Convert an attribute list from EGLint[] to EGLAttrib[].
+ *
+ * Return an EGL error code. The output parameter out_attrib_list is modified
+ * only on success.
+ */
+EGLint
+_eglConvertIntsToAttribs(const EGLint *int_list, EGLAttrib **out_attrib_list)
+{
+ size_t len = 0;
+ EGLAttrib *attrib_list;
+
+ if (int_list) {
+ while (int_list[2*len] != EGL_NONE)
+ ++len;
+ }
+
+ if (len == 0) {
+ *out_attrib_list = NULL;
+ return EGL_SUCCESS;
+ }
+
+ if (2*len + 1 > SIZE_MAX / sizeof(EGLAttrib))
+ return EGL_BAD_ALLOC;
+
+ attrib_list = malloc((2*len + 1) * sizeof(EGLAttrib));
+ if (!attrib_list)
+ return EGL_BAD_ALLOC;
+
+ for (size_t i = 0; i < len; ++i) {
+ attrib_list[2*i + 0] = int_list[2*i + 0];
+ attrib_list[2*i + 1] = int_list[2*i + 1];
+ }
+
+ attrib_list[2*len] = EGL_NONE;
+
+ *out_attrib_list = attrib_list;
+ return EGL_SUCCESS;
+}
+
+
static EGLint *
_eglConvertAttribsToInt(const EGLAttrib *attr_list)
{
diff --git a/src/egl/main/eglapi.h b/src/egl/main/eglapi.h
index 2d6a24f..5d9c1b8 100644
--- a/src/egl/main/eglapi.h
+++ b/src/egl/main/eglapi.h
@@ -199,6 +199,8 @@ struct _egl_api
struct mesa_glinterop_export_out *out);
};
+EGLint _eglConvertIntsToAttribs(const EGLint *int_list,
+ EGLAttrib **out_attrib_list);
#ifdef __cplusplus
}
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