Commit 7ec12467 authored by Michał Dębski's avatar Michał Dębski Committed by Tim-Philipp Müller

gleffects: Create element for each effect

https://bugzilla.gnome.org/show_bug.cgi?id=746209
parent afdc3c8e
......@@ -39,16 +39,17 @@
#include <gst/gl/gstglconfig.h>
#include "gstgleffects.h"
#define GST_TYPE_GL_EFFECTS (gst_gl_effects_get_type())
#define GST_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GL_EFFECTS,GstGLEffects))
#define GST_IS_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GL_EFFECTS))
#define GST_GL_EFFECTS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , GST_TYPE_GL_EFFECTS,GstGLEffectsClass))
#define GST_IS_GL_EFFECTS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , GST_TYPE_GL_EFFECTS))
#define GST_GL_EFFECTS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , GST_TYPE_GL_EFFECTS,GstGLEffectsClass))
#define GST_CAT_DEFAULT gst_gl_effects_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
enum
{
PROP_0 = 0x0,
PROP_EFFECT = 0x1 << 1,
PROP_HSWAP = 0x1 << 2,
PROP_INVERT = 0x1 << 3
};
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_gl_effects_debug, "gleffects", 0, "gleffects element");
......@@ -70,6 +71,8 @@ static void gst_gl_effects_ghash_func_clean (gpointer key, gpointer value,
static gboolean gst_gl_effects_filter_texture (GstGLFilter * filter,
guint in_tex, guint out_tex);
static gboolean gst_gl_effects_filters_is_property_supported (const
GstGLEffectsFilterDescriptor *, gint property);
/* dont' forget to edit the following when a new effect is added */
typedef enum
......@@ -96,11 +99,9 @@ typedef enum
GST_GL_N_EFFECTS
} GstGLEffectsEffect;
#define GST_TYPE_GL_EFFECTS_EFFECT (gst_gl_effects_effect_get_type ())
static GType
gst_gl_effects_effect_get_type (void)
static const GEnumValue *
gst_gl_effects_get_effects (void)
{
static GType gl_effects_effect_type = 0;
static const GEnumValue effect_types[] = {
{GST_GL_EFFECT_IDENTITY, "Do nothing Effect", "identity"},
{GST_GL_EFFECT_MIRROR, "Mirror Effect", "mirror"},
......@@ -123,10 +124,18 @@ gst_gl_effects_effect_get_type (void)
{GST_GL_EFFECT_LAPLACIAN, "Laplacian Convolution Demo Effect", "laplacian"},
{0, NULL, NULL}
};
return effect_types;
}
#define GST_TYPE_GL_EFFECTS_EFFECT (gst_gl_effects_effect_get_type ())
static GType
gst_gl_effects_effect_get_type (void)
{
static GType gl_effects_effect_type = 0;
if (!gl_effects_effect_type) {
gl_effects_effect_type =
g_enum_register_static ("GstGLEffectsEffect", effect_types);
g_enum_register_static ("GstGLEffectsEffect",
gst_gl_effects_get_effects ());
}
return gl_effects_effect_type;
}
......@@ -307,14 +316,7 @@ gst_gl_effects_reset_gl_resources (GstGLFilter * filter)
static void
gst_gl_effects_class_init (GstGLEffectsClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_effects_set_property;
gobject_class->get_property = gst_gl_effects_get_property;
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GST_GL_FILTER_CLASS (klass)->filter_texture = gst_gl_effects_filter_texture;
GST_GL_FILTER_CLASS (klass)->display_init_cb =
......@@ -325,26 +327,7 @@ gst_gl_effects_class_init (GstGLEffectsClass * klass)
GST_GL_FILTER_CLASS (klass)->onStop = gst_gl_effects_reset_resources;
GST_GL_FILTER_CLASS (klass)->onInitFBO = gst_gl_effects_on_init_gl_context;
g_object_class_install_property (gobject_class,
PROP_EFFECT,
g_param_spec_enum ("effect",
"Effect",
"Select which effect apply to GL video texture",
GST_TYPE_GL_EFFECTS_EFFECT,
GST_GL_EFFECT_IDENTITY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_HSWAP,
g_param_spec_boolean ("hswap",
"Horizontal Swap",
"Switch video texture left to right, useful with webcams",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* FIXME: make it work on every effect */
g_object_class_install_property (gobject_class,
PROP_INVERT,
g_param_spec_boolean ("invert",
"Invert the colours for sobel and laplacian effect",
"Invert colors to get dark edges on bright background when using sobel effect",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
klass->filter_descriptor = NULL;
gst_element_class_set_metadata (element_class,
"Gstreamer OpenGL Effects", "Filter/Effect/Video",
......@@ -355,6 +338,46 @@ gst_gl_effects_class_init (GstGLEffectsClass * klass)
GST_GL_API_OPENGL | GST_GL_API_GLES2 | GST_GL_API_OPENGL3;
}
static void
gst_gl_effects_filter_class_init (GstGLEffectsClass * klass,
const GstGLEffectsFilterDescriptor * filter_descriptor)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
klass->filter_descriptor = filter_descriptor;
gobject_class->set_property = gst_gl_effects_set_property;
gobject_class->get_property = gst_gl_effects_get_property;
/* if filterDescriptor is null it's a generic gleffects */
if (!filter_descriptor) {
g_object_class_install_property (gobject_class,
PROP_EFFECT,
g_param_spec_enum ("effect",
"Effect",
"Select which effect apply to GL video texture",
GST_TYPE_GL_EFFECTS_EFFECT,
GST_GL_EFFECT_IDENTITY,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
g_object_class_install_property (gobject_class,
PROP_HSWAP,
g_param_spec_boolean ("hswap",
"Horizontal Swap",
"Switch video texture left to right, useful with webcams",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* FIXME: make it work on every effect */
if (gst_gl_effects_filters_is_property_supported (filter_descriptor,
PROP_INVERT)) {
g_object_class_install_property (gobject_class, PROP_INVERT,
g_param_spec_boolean ("invert", "Invert the colors for sobel effect",
"Invert colors to get dark edges on bright background when using sobel effect",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
}
static void
set_horizontal_swap (GstGLContext * context, gpointer data)
{
......@@ -376,9 +399,16 @@ set_horizontal_swap (GstGLContext * context, gpointer data)
static void
gst_gl_effects_init (GstGLEffects * effects)
{
effects->effect = gst_gl_effects_identity;
effects->horizontal_swap = FALSE;
effects->invert = FALSE;
effects->effect = gst_gl_effects_identity;
}
static void
gst_gl_effects_filter_init (GstGLEffects * effects)
{
gst_gl_effects_set_effect (effects,
GST_GL_EFFECTS_GET_CLASS (effects)->filter_descriptor->effect);
}
static void
......@@ -533,3 +563,109 @@ gst_gl_effects_get_fragment_shader (GstGLEffects * effects,
return shader;
}
static const GstGLEffectsFilterDescriptor *
gst_gl_effects_filters_supported_properties (void)
{
/* Horizontal swap property is supported by all filters */
static const GstGLEffectsFilterDescriptor effects[] = {
{GST_GL_EFFECT_SOBEL, PROP_INVERT, NULL},
{GST_GL_EFFECT_LAPLACIAN, PROP_INVERT, NULL},
{0, 0, NULL}
};
return effects;
}
static inline gboolean
gst_gl_effects_filters_is_property_supported (const GstGLEffectsFilterDescriptor
* descriptor, gint property)
{
/* generic filter (NULL descriptor) supports all properties */
return !descriptor || (descriptor->supported_properties & property);
}
static const GstGLEffectsFilterDescriptor *
gst_gl_effects_filters_descriptors (void)
{
static GstGLEffectsFilterDescriptor *descriptors = NULL;
if (!descriptors) {
const GEnumValue *effect = gst_gl_effects_get_effects ();
guint n_filters = 0;
for (const GEnumValue * e = effect; NULL != e->value_nick; ++e, ++n_filters) {
}
descriptors = g_new0 (GstGLEffectsFilterDescriptor, n_filters + 1);
for (guint i = 0; i < n_filters; ++i, ++effect) {
descriptors[i].effect = effect->value;
descriptors[i].filter_name = effect->value_nick;
}
for (const GstGLEffectsFilterDescriptor * defined =
gst_gl_effects_filters_supported_properties ();
0 != defined->supported_properties; ++defined) {
guint i = 0;
for (; i < n_filters; ++i) {
if (descriptors[i].effect == defined->effect) {
descriptors[i].supported_properties = defined->supported_properties;
break;
}
}
if (i >= n_filters) {
GST_WARNING ("Could not match gstgleffects-%s descriptor",
defined->filter_name);
}
}
}
return descriptors;
}
gboolean
gst_gl_effects_register_filters (GstPlugin * plugin, GstRank rank)
{
static volatile gsize registered = 0;
if (g_once_init_enter (&registered)) {
GTypeInfo info = {
sizeof (GstGLEffectsClass),
NULL,
NULL,
(GClassInitFunc) gst_gl_effects_filter_class_init,
NULL,
NULL,
sizeof (GstGLEffects),
0,
NULL
};
GType generic_type =
g_type_register_static (GST_TYPE_GL_EFFECTS, "GstGLEffectsGeneric",
&info, 0);
if (gst_element_register (plugin, "gleffects", rank, generic_type)) {
for (const GstGLEffectsFilterDescriptor * filters =
gst_gl_effects_filters_descriptors (); NULL != filters->filter_name;
++filters) {
gchar *name = g_strdup_printf ("gleffects_%s", filters->filter_name);
GTypeInfo info = {
sizeof (GstGLEffectsClass),
NULL,
NULL,
(GClassInitFunc) gst_gl_effects_filter_class_init,
NULL,
filters,
sizeof (GstGLEffects),
0,
(GInstanceInitFunc) gst_gl_effects_filter_init
};
GType type =
g_type_register_static (GST_TYPE_GL_EFFECTS, name, &info, 0);
if (!gst_element_register (plugin, name, rank, type)) {
GST_WARNING ("Could not register %s", name);
}
g_free (name);
}
}
g_once_init_leave (&registered, generic_type);
}
return registered;
}
......@@ -26,7 +26,6 @@
G_BEGIN_DECLS
#define GST_TYPE_GL_EFFECTS (gst_gl_effects_get_type())
#define GST_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GL_EFFECTS,GstGLEffects))
#define GST_IS_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GL_EFFECTS))
......@@ -43,6 +42,12 @@ G_BEGIN_DECLS
typedef struct _GstGLEffects GstGLEffects;
typedef struct _GstGLEffectsClass GstGLEffectsClass;
typedef struct {
gint effect;
guint supported_properties;
const gchar *filter_name;
} GstGLEffectsFilterDescriptor;
typedef void (* GstGLEffectProcessFunc) (GstGLEffects *effects);
#define NEEDED_TEXTURES 5
......@@ -78,18 +83,11 @@ struct _GstGLEffects
struct _GstGLEffectsClass
{
GstGLFilterClass filter_class;
const GstGLEffectsFilterDescriptor *filter_descriptor;
};
enum
{
PROP_0,
PROP_EFFECT,
PROP_HSWAP,
PROP_INVERT
};
GType gst_gl_effects_get_type (void);
gboolean gst_gl_effects_register_filters (GstPlugin *, GstRank);
GstGLShader* gst_gl_effects_get_fragment_shader (GstGLEffects *effects,
const gchar * shader_name, const gchar * shader_source_gles2, const gchar * shader_source_opengl);
......
......@@ -161,10 +161,10 @@ plugin_init (GstPlugin * plugin)
return FALSE;
}
#endif
if (!gst_element_register (plugin, "gleffects",
GST_RANK_NONE, gst_gl_effects_get_type ())) {
if (!gst_gl_effects_register_filters (plugin, GST_RANK_NONE)) {
return FALSE;
}
};
if (!gst_element_register (plugin, "glcolorscale",
GST_RANK_NONE, GST_TYPE_GL_COLORSCALE)) {
......
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