mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
1. fix FBO leaks in decide_allocation 2. fix texture leaks in decide_allocation and reset 3. fix texture leaks in FBO incomplete error path
406 lines
13 KiB
C
406 lines
13 KiB
C
/*
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* GStreamer
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-gleffects.
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*
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* GL Shading Language effects.
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*
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* <refsect2>
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* <title>Examples</title>
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* |[
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* gst-launch videotestsrc ! glupload ! gleffects effect=5 ! glimagesink
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* ]|
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* FBO (Frame Buffer Object) and GLSL (OpenGL Shading Language) are required.
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gl/gstglconfig.h>
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#include "gstgleffects.h"
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#define GST_TYPE_GL_EFFECTS (gst_gl_effects_get_type())
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#define GST_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GL_EFFECTS,GstGLEffects))
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#define GST_IS_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GL_EFFECTS))
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#define GST_GL_EFFECTS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , GST_TYPE_GL_EFFECTS,GstGLEffectsClass))
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#define GST_IS_GL_EFFECTS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , GST_TYPE_GL_EFFECTS))
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#define GST_GL_EFFECTS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , GST_TYPE_GL_EFFECTS,GstGLEffectsClass))
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#define GST_CAT_DEFAULT gst_gl_effects_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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#define DEBUG_INIT \
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GST_DEBUG_CATEGORY_INIT (gst_gl_effects_debug, "gleffects", 0, "gleffects element");
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G_DEFINE_TYPE_WITH_CODE (GstGLEffects, gst_gl_effects, GST_TYPE_GL_FILTER,
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DEBUG_INIT);
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static void gst_gl_effects_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_gl_effects_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_gl_effects_init_resources (GstGLFilter * filter);
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static void gst_gl_effects_reset_resources (GstGLFilter * filter);
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static gboolean gst_gl_effects_on_init_gl_context (GstGLFilter * filter);
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static void gst_gl_effects_ghash_func_clean (gpointer key, gpointer value,
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gpointer data);
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static gboolean gst_gl_effects_filter_texture (GstGLFilter * filter,
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guint in_tex, guint out_tex);
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/* dont' forget to edit the following when a new effect is added */
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typedef enum
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{
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GST_GL_EFFECT_IDENTITY,
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GST_GL_EFFECT_MIRROR,
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GST_GL_EFFECT_SQUEEZE,
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GST_GL_EFFECT_STRETCH,
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GST_GL_EFFECT_TUNNEL,
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GST_GL_EFFECT_FISHEYE,
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GST_GL_EFFECT_TWIRL,
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GST_GL_EFFECT_BULGE,
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GST_GL_EFFECT_SQUARE,
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GST_GL_EFFECT_HEAT,
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GST_GL_EFFECT_SEPIA,
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GST_GL_EFFECT_XPRO,
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GST_GL_EFFECT_LUMA_XPRO,
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GST_GL_EFFECT_XRAY,
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GST_GL_EFFECT_SIN,
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GST_GL_EFFECT_GLOW,
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GST_GL_N_EFFECTS
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} GstGLEffectsEffect;
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#define GST_TYPE_GL_EFFECTS_EFFECT (gst_gl_effects_effect_get_type ())
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static GType
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gst_gl_effects_effect_get_type (void)
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{
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static GType gl_effects_effect_type = 0;
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static const GEnumValue effect_types[] = {
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{GST_GL_EFFECT_IDENTITY, "Do nothing Effect", "identity"},
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{GST_GL_EFFECT_MIRROR, "Mirror Effect", "mirror"},
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{GST_GL_EFFECT_SQUEEZE, "Squeeze Effect", "squeeze"},
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#if GST_GL_HAVE_OPENGL
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{GST_GL_EFFECT_STRETCH, "Stretch Effect", "stretch"},
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{GST_GL_EFFECT_FISHEYE, "FishEye Effect", "fisheye"},
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{GST_GL_EFFECT_TWIRL, "Twirl Effect", "twirl"},
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{GST_GL_EFFECT_BULGE, "Bulge Effect", "bulge"},
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{GST_GL_EFFECT_TUNNEL, "Light Tunnel Effect", "tunnel"},
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{GST_GL_EFFECT_SQUARE, "Square Effect", "square"},
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{GST_GL_EFFECT_HEAT, "Heat Signature Effect", "heat"},
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{GST_GL_EFFECT_SEPIA, "Sepia Toning Effect", "sepia"},
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{GST_GL_EFFECT_XPRO, "Cross Processing Effect", "xpro"},
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{GST_GL_EFFECT_LUMA_XPRO, "Luma Cross Processing Effect", "lumaxpro"},
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{GST_GL_EFFECT_XRAY, "Glowing negative effect", "xray"},
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{GST_GL_EFFECT_SIN, "All Grey but Red Effect", "sin"},
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{GST_GL_EFFECT_GLOW, "Glow Lighting Effect", "glow"},
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#endif
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{0, NULL, NULL}
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};
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if (!gl_effects_effect_type) {
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gl_effects_effect_type =
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g_enum_register_static ("GstGLEffectsEffect", effect_types);
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}
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return gl_effects_effect_type;
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}
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static void
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gst_gl_effects_set_effect (GstGLEffects * effects, gint effect_type)
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{
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switch (effect_type) {
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case GST_GL_EFFECT_IDENTITY:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_identity;
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break;
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case GST_GL_EFFECT_MIRROR:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_mirror;
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break;
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case GST_GL_EFFECT_SQUEEZE:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_squeeze;
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break;
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#if GST_GL_HAVE_OPENGL
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case GST_GL_EFFECT_STRETCH:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_stretch;
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break;
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case GST_GL_EFFECT_TUNNEL:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_tunnel;
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break;
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case GST_GL_EFFECT_FISHEYE:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_fisheye;
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break;
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case GST_GL_EFFECT_TWIRL:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_twirl;
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break;
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case GST_GL_EFFECT_BULGE:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_bulge;
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break;
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case GST_GL_EFFECT_SQUARE:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_square;
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break;
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case GST_GL_EFFECT_HEAT:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_heat;
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break;
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case GST_GL_EFFECT_SEPIA:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_sepia;
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break;
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case GST_GL_EFFECT_XPRO:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_xpro;
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break;
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case GST_GL_EFFECT_LUMA_XPRO:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_luma_xpro;
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break;
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case GST_GL_EFFECT_XRAY:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_xray;
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break;
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case GST_GL_EFFECT_SIN:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_sin;
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break;
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case GST_GL_EFFECT_GLOW:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_glow;
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break;
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#endif
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default:
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g_assert_not_reached ();
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}
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effects->current_effect = effect_type;
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}
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/* init resources that need a gl context */
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static void
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gst_gl_effects_init_gl_resources (GstGLFilter * filter)
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{
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GstGLEffects *effects = GST_GL_EFFECTS (filter);
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GstGLFuncs *gl = filter->context->gl_vtable;
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gint i = 0;
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for (i = 0; i < NEEDED_TEXTURES; i++) {
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if (effects->midtexture[i]) {
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gl->DeleteTextures (1, &effects->midtexture[i]);
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effects->midtexture[i] = 0;
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}
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gl->GenTextures (1, &effects->midtexture[i]);
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gl->BindTexture (GL_TEXTURE_2D, effects->midtexture[i]);
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gl->TexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8,
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GST_VIDEO_INFO_WIDTH (&filter->out_info),
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GST_VIDEO_INFO_HEIGHT (&filter->out_info),
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0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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}
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}
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/* free resources that need a gl context */
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static void
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gst_gl_effects_reset_gl_resources (GstGLFilter * filter)
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{
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GstGLEffects *effects = GST_GL_EFFECTS (filter);
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GstGLFuncs *gl = filter->context->gl_vtable;
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gint i = 0;
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for (i = 0; i < NEEDED_TEXTURES; i++) {
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gl->DeleteTextures (1, &effects->midtexture[i]);
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effects->midtexture[i] = 0;
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}
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for (i = 0; i < GST_GL_EFFECTS_N_CURVES; i++) {
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gl->DeleteTextures (1, &effects->curve[i]);
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effects->curve[i] = 0;
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}
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}
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static void
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gst_gl_effects_class_init (GstGLEffectsClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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gobject_class = (GObjectClass *) klass;
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element_class = GST_ELEMENT_CLASS (klass);
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gobject_class->set_property = gst_gl_effects_set_property;
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gobject_class->get_property = gst_gl_effects_get_property;
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GST_GL_FILTER_CLASS (klass)->filter_texture = gst_gl_effects_filter_texture;
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GST_GL_FILTER_CLASS (klass)->display_init_cb =
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gst_gl_effects_init_gl_resources;
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GST_GL_FILTER_CLASS (klass)->display_reset_cb =
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gst_gl_effects_reset_gl_resources;
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GST_GL_FILTER_CLASS (klass)->onStart = gst_gl_effects_init_resources;
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GST_GL_FILTER_CLASS (klass)->onStop = gst_gl_effects_reset_resources;
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GST_GL_FILTER_CLASS (klass)->onInitFBO = gst_gl_effects_on_init_gl_context;
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g_object_class_install_property (gobject_class,
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PROP_EFFECT,
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g_param_spec_enum ("effect",
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"Effect",
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"Select which effect apply to GL video texture",
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GST_TYPE_GL_EFFECTS_EFFECT,
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GST_GL_EFFECT_IDENTITY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class,
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PROP_HSWAP,
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g_param_spec_boolean ("hswap",
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"Horizontal Swap",
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"Switch video texture left to right, useful with webcams",
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FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_set_metadata (element_class,
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"Gstreamer OpenGL Effects", "Filter/Effect/Video",
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"GL Shading Language effects",
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"Filippo Argiolas <filippo.argiolas@gmail.com>");
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}
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static void
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set_horizontal_swap (GstGLContext * context, gpointer data)
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{
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#if GST_GL_HAVE_OPENGL
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GstGLFuncs *gl = context->gl_vtable;
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if (gst_gl_context_get_gl_api (context) & GST_GL_API_OPENGL) {
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const gfloat mirrormatrix[16] = {
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-1.0, 0.0, 0.0, 0.0,
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0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0
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};
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gl->MatrixMode (GL_MODELVIEW);
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gl->LoadMatrixf (mirrormatrix);
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}
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#endif
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}
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static void
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gst_gl_effects_init (GstGLEffects * effects)
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{
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effects->effect = gst_gl_effects_identity;
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effects->horizontal_swap = FALSE;
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}
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static void
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gst_gl_effects_ghash_func_clean (gpointer key, gpointer value, gpointer data)
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{
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GstGLShader *shader = (GstGLShader *) value;
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GstGLFilter *filter = (GstGLFilter *) data;
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//blocking call, wait the opengl thread has destroyed the shader
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gst_gl_context_del_shader (filter->context, shader);
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value = NULL;
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}
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static void
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gst_gl_effects_reset_resources (GstGLFilter * filter)
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{
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GstGLEffects *effects = GST_GL_EFFECTS (filter);
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/* release shaders in the gl thread */
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g_hash_table_foreach (effects->shaderstable, gst_gl_effects_ghash_func_clean,
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filter);
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/* clean the htable without calling values destructors
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* because shaders have been released in the glthread
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* through the foreach func */
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g_hash_table_unref (effects->shaderstable);
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effects->shaderstable = NULL;
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}
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static void
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gst_gl_effects_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstGLEffects *effects = GST_GL_EFFECTS (object);
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switch (prop_id) {
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case PROP_EFFECT:
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gst_gl_effects_set_effect (effects, g_value_get_enum (value));
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break;
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case PROP_HSWAP:
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effects->horizontal_swap = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gl_effects_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstGLEffects *effects = GST_GL_EFFECTS (object);
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switch (prop_id) {
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case PROP_EFFECT:
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g_value_set_enum (value, effects->current_effect);
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break;
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case PROP_HSWAP:
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g_value_set_boolean (value, effects->horizontal_swap);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gl_effects_init_resources (GstGLFilter * filter)
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{
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GstGLEffects *effects = GST_GL_EFFECTS (filter);
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gint i;
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effects->shaderstable = g_hash_table_new (g_str_hash, g_str_equal);
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for (i = 0; i < NEEDED_TEXTURES; i++) {
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effects->midtexture[i] = 0;
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}
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for (i = 0; i < GST_GL_EFFECTS_N_CURVES; i++) {
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effects->curve[i] = 0;
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}
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}
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static gboolean
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gst_gl_effects_on_init_gl_context (GstGLFilter * filter)
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{
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return TRUE;
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}
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static gboolean
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gst_gl_effects_filter_texture (GstGLFilter * filter, guint in_tex,
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guint out_tex)
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{
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GstGLEffects *effects = GST_GL_EFFECTS (filter);
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effects->intexture = in_tex;
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effects->outtexture = out_tex;
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if (effects->horizontal_swap == TRUE)
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gst_gl_context_thread_add (filter->context, set_horizontal_swap, effects);
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effects->effect (effects);
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return TRUE;
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}
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