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texture: detect GL version and use the proper API

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When receiving the texture from the application or the video sink, we must
know it size and border. To query the texture the API has changed according to
the OpenGL version used in the GL context of the application/vsink.

This patch checks the current context API type and queries the texture
according to this detected API.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>

https://bugzilla.gnome.org/show_bug.cgi?id=753099
This commit is contained in:
Víctor Manuel Jáquez Leal 2015-11-26 10:34:12 +01:00
parent 1e39b59ce8
commit 4897d96945
1 changed files with 30 additions and 5 deletions
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35
gst-libs/gst/vaapi/gstvaapitexture_glx.c
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@ -235,6 +235,21 @@ gst_vaapi_texture_glx_new (GstVaapiDisplay * display, guint target,
format, width, height); format, width, height);
} }
/* Can we assume that the vsink/app context API won't change ever? */
GstVaapiGLApi
gl_get_curent_api_once ()
{
static GstVaapiGLApi cur_api = GST_VAAPI_GL_API_NONE;
static volatile gsize _init = 0;
if (g_once_init_enter (&_init)) {
cur_api = gl_get_current_api (NULL, NULL);
g_once_init_leave (&_init, 1);
}
return cur_api;
}
/** /**
* gst_vaapi_texture_glx_new_wrapped: * gst_vaapi_texture_glx_new_wrapped:
* @display: a #GstVaapiDisplay * @display: a #GstVaapiDisplay
@ -258,23 +273,33 @@ GstVaapiTexture *
gst_vaapi_texture_glx_new_wrapped (GstVaapiDisplay * display, gst_vaapi_texture_glx_new_wrapped (GstVaapiDisplay * display,
guint texture_id, guint target, guint format) guint texture_id, guint target, guint format)
{ {
guint width, height, border_width; guint width, height, border_width = 0;
GLTextureState ts; GLTextureState ts = { 0, };
gboolean success; gboolean success;
GstVaapiGLApi gl_api;
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_GLX (display), NULL); g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_GLX (display), NULL);
g_return_val_if_fail (texture_id != GL_NONE, NULL); g_return_val_if_fail (texture_id != GL_NONE, NULL);
g_return_val_if_fail (target == GL_TEXTURE_2D, NULL); g_return_val_if_fail (target == GL_TEXTURE_2D, NULL);
g_return_val_if_fail (format == GL_RGBA || format == GL_BGRA, NULL); g_return_val_if_fail (format == GL_RGBA || format == GL_BGRA, NULL);
gl_api = gl_get_curent_api_once ();
if (gl_api != GST_VAAPI_GL_API_OPENGL && gl_api != GST_VAAPI_GL_API_OPENGL3)
return NULL;
/* Check texture dimensions */ /* Check texture dimensions */
GST_VAAPI_DISPLAY_LOCK (display); GST_VAAPI_DISPLAY_LOCK (display);
success = gl_bind_texture (&ts, target, texture_id); if (gl_api == GST_VAAPI_GL_API_OPENGL)
success = gl_bind_texture (&ts, target, texture_id);
else
success = gl3_bind_texture_2d (&ts, target, texture_id);
if (success) { if (success) {
if (!gl_get_texture_param (target, GL_TEXTURE_WIDTH, &width) || if (!gl_get_texture_param (target, GL_TEXTURE_WIDTH, &width) ||
!gl_get_texture_param (target, GL_TEXTURE_HEIGHT, &height) || !gl_get_texture_param (target, GL_TEXTURE_HEIGHT, &height))
!gl_get_texture_param (target, GL_TEXTURE_BORDER, &border_width))
success = FALSE; success = FALSE;
if (success && gl_api == GST_VAAPI_GL_API_OPENGL)
success = gl_get_texture_param (target, GL_TEXTURE_BORDER, &border_width);
gl_unbind_texture (&ts); gl_unbind_texture (&ts);
} }
GST_VAAPI_DISPLAY_UNLOCK (display); GST_VAAPI_DISPLAY_UNLOCK (display);