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glcontext: check for GLES versions

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This commit is contained in:
Matthew Waters 2014-05-30 10:25:18 +10:00
parent 5273b726a6
commit 1334884a61
1 changed files with 15 additions and 55 deletions
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60
gst-libs/gst/gl/gstglcontext.c
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@ -598,50 +598,13 @@ gst_gl_context_create (GstGLContext * context,
}
static gboolean
_create_context_gles2 (GstGLContext * context, gint * gl_major, gint * gl_minor,
GError ** error)
{
const GstGLFuncs *gl;
GLenum gl_err = GL_NO_ERROR;
gl = context->gl_vtable;
GST_INFO ("GL_VERSION: %s", gl->GetString (GL_VERSION));
GST_INFO ("GL_SHADING_LANGUAGE_VERSION: %s",
gl->GetString (GL_SHADING_LANGUAGE_VERSION));
GST_INFO ("GL_VENDOR: %s", gl->GetString (GL_VENDOR));
GST_INFO ("GL_RENDERER: %s", gl->GetString (GL_RENDERER));
gl_err = gl->GetError ();
if (gl_err != GL_NO_ERROR) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"glGetString error: 0x%x", gl_err);
return FALSE;
}
#if GST_GL_HAVE_GLES2
if (!GL_ES_VERSION_2_0) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_OLD_LIBS,
"OpenGL|ES >= 2.0 is required");
return FALSE;
}
#endif
if (gl_major)
*gl_major = 2;
if (gl_minor)
*gl_minor = 0;
return TRUE;
}
static gboolean
_create_context_opengl (GstGLContext * context, gint * gl_major,
_create_context_info (GstGLContext * context, GstGLAPI gl_api, gint * gl_major,
gint * gl_minor, GError ** error)
{
const GstGLFuncs *gl;
guint maj, min;
GLenum gl_err = GL_NO_ERROR;
GString *opengl_version = NULL;
gchar *opengl_version = NULL;
gl = context->gl_vtable;
@ -657,20 +620,22 @@ _create_context_opengl (GstGLContext * context, gint * gl_major,
"glGetString error: 0x%x", gl_err);
return FALSE;
}
opengl_version =
g_string_truncate (g_string_new ((gchar *) gl->GetString (GL_VERSION)),
3);
sscanf (opengl_version->str, "%d.%d", &maj, &min);
opengl_version = (gchar *) gl->GetString (GL_VERSION);
if (opengl_version && gl_api & GST_GL_API_GLES2)
/* gles starts with "OpenGL ES " */
opengl_version = &opengl_version[10];
g_string_free (opengl_version, TRUE);
sscanf (opengl_version, "%d.%d", &maj, &min);
/* OpenGL > 1.2.0 */
if (gl_api & GST_GL_API_OPENGL || gl_api & GST_GL_API_OPENGL3) {
if ((maj < 1) || (maj < 2 && maj >= 1 && min < 2)) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_OLD_LIBS,
"OpenGL >= 1.2.0 required, found %u.%u", maj, min);
return FALSE;
}
}
if (gl_major)
*gl_major = maj;
@ -835,12 +800,7 @@ gst_gl_context_create_thread (GstGLContext * context)
}
/* gl api specific code */
if (!ret && gl_api & GST_GL_API_OPENGL)
ret = _create_context_opengl (context, &context->priv->gl_major,
&context->priv->gl_minor, error);
if (!ret && gl_api & GST_GL_API_GLES2)
ret =
_create_context_gles2 (context, &context->priv->gl_major,
ret = _create_context_info (context, gl_api, &context->priv->gl_major,
&context->priv->gl_minor, error);
if (!ret) {