egl: Move attributes in _EGLImage to _EGLImageAttribs.

The opaque nature of EGLImage implies that extensions almost always
define their own attributes.  Move attributes in _EGLImage to
_EGLImageAttribs and add a helper function to parse attribute lists.
This commit is contained in:
Chia-I Wu
2010-10-22 16:36:47 +08:00
parent ecca5571b6
commit 713c8734f4
5 changed files with 42 additions and 28 deletions

View File

@@ -12,27 +12,38 @@
/**
* Parse the list of image attributes and return the proper error code.
*/
static EGLint
_eglParseImageAttribList(_EGLImage *img, const EGLint *attrib_list)
EGLint
_eglParseImageAttribList(_EGLImageAttribs *attrs, _EGLDisplay *dpy,
const EGLint *attrib_list)
{
EGLint i, err = EGL_SUCCESS;
(void) dpy;
memset(attrs, 0, sizeof(attrs));
attrs->ImagePreserved = EGL_FALSE;
attrs->GLTextureLevel = 0;
attrs->GLTextureZOffset = 0;
if (!attrib_list)
return EGL_SUCCESS;
return err;
for (i = 0; attrib_list[i] != EGL_NONE; i++) {
EGLint attr = attrib_list[i++];
EGLint val = attrib_list[i];
switch (attr) {
/* EGL_KHR_image_base */
case EGL_IMAGE_PRESERVED_KHR:
img->Preserved = val;
attrs->ImagePreserved = val;
break;
/* EGL_KHR_gl_image */
case EGL_GL_TEXTURE_LEVEL_KHR:
img->GLTextureLevel = val;
attrs->GLTextureLevel = val;
break;
case EGL_GL_TEXTURE_ZOFFSET_KHR:
img->GLTextureZOffset = val;
attrs->GLTextureZOffset = val;
break;
default:
/* unknown attrs are ignored */
@@ -50,21 +61,11 @@ _eglParseImageAttribList(_EGLImage *img, const EGLint *attrib_list)
EGLBoolean
_eglInitImage(_EGLImage *img, _EGLDisplay *dpy, const EGLint *attrib_list)
_eglInitImage(_EGLImage *img, _EGLDisplay *dpy)
{
EGLint err;
memset(img, 0, sizeof(_EGLImage));
img->Resource.Display = dpy;
img->Preserved = EGL_FALSE;
img->GLTextureLevel = 0;
img->GLTextureZOffset = 0;
err = _eglParseImageAttribList(img, attrib_list);
if (err != EGL_SUCCESS)
return _eglError(err, "eglCreateImageKHR");
return EGL_TRUE;
}