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[902/906] context: implement glGetStringi handling for GL core contexts/GLES3

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This commit is contained in:
Matthew Waters 2014-03-15 11:25:43 +01:00
parent c3146c0d48
commit ea0c6b3f70
2 changed files with 36 additions and 3 deletions
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9
gst-libs/gst/gl/glprototypes/opengl.h
View file

@ -163,3 +163,12 @@ GST_GL_EXT_FUNCTION (void, ColorMaterial,
GST_GL_EXT_FUNCTION (void, ShadeModel,
(GLenum value))
GST_GL_EXT_END ()
GST_GL_EXT_BEGIN (gl3,
3, 1,
GST_GL_API_GLES3, /* not in GLES */
"\0",
"\0")
GST_GL_EXT_FUNCTION (const GLubyte*, GetStringi,
(GLenum name, GLint index))
GST_GL_EXT_END ()

30
gst-libs/gst/gl/gstglcontext.c
View file

@ -652,6 +652,22 @@ _unlock_create_thread (GstGLContext * context)
g_mutex_unlock (&context->priv->render_lock);
}
static gchar *
_build_extension_string (GstGLContext * context)
{
const GstGLFuncs *gl = context->gl_vtable;
GString *exts = g_string_sized_new (1024);
int i, n;
gl->GetIntegerv (GL_NUM_EXTENSIONS, &n);
for (i = 0; i < n; i++) {
g_string_append_printf (exts, "%s ", gl->GetStringi (GL_EXTENSIONS, i));
}
return exts->str;
}
//gboolean
//gst_gl_context_create (GstGLContext * context, GstGLContext * other_context, GError ** error)
static gpointer
@ -667,7 +683,7 @@ gst_gl_context_create_thread (GstGLContext * context)
gchar *api_string;
gchar *compiled_api_s;
gchar *user_api_string;
const gchar *user_choice;
const gchar *user_choice, *extensions;
GError **error;
GstGLContext *other_context;
@ -757,6 +773,8 @@ gst_gl_context_create_thread (GstGLContext * context)
gl->GetError = gst_gl_context_get_proc_address (context, "glGetError");
gl->GetString = gst_gl_context_get_proc_address (context, "glGetString");
gl->GetStringi = gst_gl_context_get_proc_address (context, "glGetStringi");
gl->GetIntegerv = gst_gl_context_get_proc_address (context, "glGetIntegerv");
if (!gl->GetError || !gl->GetString) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
@ -773,8 +791,14 @@ gst_gl_context_create_thread (GstGLContext * context)
if (!ret)
goto failure;
_gst_gl_feature_check_ext_functions (context, gl_major, gl_minor,
(const gchar *) gl->GetString (GL_EXTENSIONS));
/* GL core contexts and GLES3 */
if (gl->GetIntegerv && gl->GetStringi) {
extensions = _build_extension_string (context);
} else {
extensions = (const gchar *) gl->GetString (GL_EXTENSIONS);
}
_gst_gl_feature_check_ext_functions (context, gl_major, gl_minor, extensions);
context->priv->alive = TRUE;