--- /dev/null
+/*
+ * GStreamer
+ * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
+ * Copyright (C) 2015 Michał Dębski <debski.mi.zd@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "../gstgleffects.h"
+
+static float *
+gst_gl_effects_blur_kernel (void)
+{
+ /* gaussian kernel (well, actually vector), size 9, standard
+ * deviation 3.0 */
+ /* FIXME: make this a runtime property */
+ static gfloat *kernel = NULL;
+ if (G_UNLIKELY (NULL == kernel)) {
+ /* 3x3 matrix */
+ kernel = g_malloc (sizeof (gfloat) * 9);
+ fill_gaussian_kernel (kernel, 7, 3.f);
+ }
+ return kernel;
+}
+
+static void
+gst_gl_effects_blur_callback_hconv (gint width, gint height, guint texture,
+ gpointer data)
+{
+ GstGLShader *shader = NULL;
+ GstGLEffects *effects = GST_GL_EFFECTS (data);
+
+ if (NULL != (shader = gst_gl_effects_get_fragment_shader (effects, "hconv0",
+ hconv7_fragment_source_gles2, hconv7_fragment_source_opengl))) {
+ GstGLFilter *filter = GST_GL_FILTER (effects);
+ GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
+
+#if GST_GL_HAVE_OPENGL
+ if (USING_OPENGL (GST_GL_BASE_FILTER (filter)->context)) {
+ gl->MatrixMode (GL_PROJECTION);
+ gl->LoadIdentity ();
+ }
+#endif
+
+ gst_gl_shader_use (shader);
+
+ gl->ActiveTexture (GL_TEXTURE0);
+ gl->Enable (GL_TEXTURE_2D);
+ gl->BindTexture (GL_TEXTURE_2D, texture);
+ gl->Disable (GL_TEXTURE_2D);
+
+ gst_gl_shader_set_uniform_1i (shader, "tex", 0);
+ gst_gl_shader_set_uniform_1f (shader, "gauss_width", width);
+ gst_gl_shader_set_uniform_1fv (shader, "kernel", 7,
+ gst_gl_effects_blur_kernel ());
+
+ gst_gl_filter_draw_texture (filter, texture, width, height);
+ }
+}
+
+static void
+gst_gl_effects_blur_callback_vconv (gint width, gint height, guint texture,
+ gpointer data)
+{
+ GstGLShader *shader = NULL;
+ GstGLEffects *effects = GST_GL_EFFECTS (data);
+ GstGLFilter *filter = GST_GL_FILTER (effects);
+
+ if (NULL != (shader = gst_gl_effects_get_fragment_shader (effects, "vconv0",
+ vconv7_fragment_source_gles2, vconv7_fragment_source_opengl))) {
+ GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
+
+#if GST_GL_HAVE_OPENGL
+ if (USING_OPENGL (GST_GL_BASE_FILTER (filter)->context)) {
+ gl->MatrixMode (GL_PROJECTION);
+ gl->LoadIdentity ();
+ }
+#endif
+
+ gst_gl_shader_use (shader);
+
+ gl->ActiveTexture (GL_TEXTURE0);
+ gl->Enable (GL_TEXTURE_2D);
+ gl->BindTexture (GL_TEXTURE_2D, texture);
+ gl->Disable (GL_TEXTURE_2D);
+
+ gst_gl_shader_set_uniform_1i (shader, "tex", 0);
+ gst_gl_shader_set_uniform_1f (shader, "gauss_height", height);
+ gst_gl_shader_set_uniform_1fv (shader, "kernel", 7,
+ gst_gl_effects_blur_kernel ());
+
+ gst_gl_filter_draw_texture (filter, texture, width, height);
+ }
+}
+
+void
+gst_gl_effects_blur (GstGLEffects * effects)
+{
+ GstGLFilter *filter = GST_GL_FILTER (effects);
+
+ gst_gl_filter_render_to_target (filter, TRUE, effects->intexture,
+ effects->midtexture[0], gst_gl_effects_blur_callback_hconv, effects);
+ gst_gl_filter_render_to_target (filter, FALSE, effects->midtexture[0],
+ effects->outtexture, gst_gl_effects_blur_callback_vconv, effects);
+}
+++ /dev/null
-/*
- * GStreamer
- * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-/**
- * SECTION:element-glfilterblur
- *
- * Blur with 9x9 separable convolution.
- *
- * <refsect2>
- * <title>Examples</title>
- * |[
- * gst-launch videotestsrc ! glupload ! glfilterblur ! glimagesink
- * ]|
- * FBO (Frame Buffer Object) and GLSL (OpenGL Shading Language) are required.
- * </refsect2>
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "gstglfilterblur.h"
-#include "effects/gstgleffectssources.h"
-
-#define GST_CAT_DEFAULT gst_gl_filterblur_debug
-GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
-
-#define DEBUG_INIT \
- GST_DEBUG_CATEGORY_INIT (gst_gl_filterblur_debug, "glfilterblur", 0, "glfilterblur element");
-
-G_DEFINE_TYPE_WITH_CODE (GstGLFilterBlur, gst_gl_filterblur,
- GST_TYPE_GL_FILTER, DEBUG_INIT);
-
-static void gst_gl_filterblur_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_gl_filterblur_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-static void gst_gl_filter_filterblur_reset (GstGLFilter * filter);
-
-static gboolean gst_gl_filterblur_init_shader (GstGLFilter * filter);
-static gboolean gst_gl_filterblur_filter_texture (GstGLFilter * filter,
- guint in_tex, guint out_tex);
-static void gst_gl_filterblur_hcallback (gint width, gint height, guint texture,
- gpointer stuff);
-static void gst_gl_filterblur_vcallback (gint width, gint height, guint texture,
- gpointer stuff);
-
-
-static void
-gst_gl_filterblur_init_resources (GstGLFilter * filter)
-{
- GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (filter);
- GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
-
- gl->GenTextures (1, &filterblur->midtexture);
- gl->BindTexture (GL_TEXTURE_2D, filterblur->midtexture);
- gl->TexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8,
- GST_VIDEO_INFO_WIDTH (&filter->out_info),
- GST_VIDEO_INFO_HEIGHT (&filter->out_info),
- 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-}
-
-static void
-gst_gl_filterblur_reset_resources (GstGLFilter * filter)
-{
- GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (filter);
- GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
-
- gl->DeleteTextures (1, &filterblur->midtexture);
-}
-
-static void
-gst_gl_filterblur_class_init (GstGLFilterBlurClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *element_class;
-
- gobject_class = (GObjectClass *) klass;
- element_class = GST_ELEMENT_CLASS (klass);
-
- gobject_class->set_property = gst_gl_filterblur_set_property;
- gobject_class->get_property = gst_gl_filterblur_get_property;
-
- gst_element_class_set_metadata (element_class, "Gstreamer OpenGL Blur",
- "Filter/Effect/Video", "Blur with 9x9 separable convolution",
- "Filippo Argiolas <filippo.argiolas@gmail.com>");
-
- GST_GL_FILTER_CLASS (klass)->filter_texture =
- gst_gl_filterblur_filter_texture;
- GST_GL_FILTER_CLASS (klass)->display_init_cb =
- gst_gl_filterblur_init_resources;
- GST_GL_FILTER_CLASS (klass)->display_reset_cb =
- gst_gl_filterblur_reset_resources;
- GST_GL_FILTER_CLASS (klass)->onInitFBO = gst_gl_filterblur_init_shader;
- GST_GL_FILTER_CLASS (klass)->onReset = gst_gl_filter_filterblur_reset;
-
- GST_GL_BASE_FILTER_CLASS (klass)->supported_gl_api = GST_GL_API_OPENGL;
-}
-
-static void
-gst_gl_filterblur_init (GstGLFilterBlur * filterblur)
-{
- filterblur->shader0 = NULL;
- filterblur->shader1 = NULL;
- filterblur->midtexture = 0;
- /* gaussian kernel (well, actually vector), size 9, standard
- * deviation 3.0 */
- /* FIXME: eventually make this a runtime property */
- fill_gaussian_kernel (filterblur->gauss_kernel, 7, 3.0);
-}
-
-static void
-gst_gl_filter_filterblur_reset (GstGLFilter * filter)
-{
- GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (filter);
-
- //blocking call, wait the opengl thread has destroyed the shader
- if (filterblur->shader0)
- gst_gl_context_del_shader (GST_GL_BASE_FILTER (filter)->context,
- filterblur->shader0);
- filterblur->shader0 = NULL;
-
- //blocking call, wait the opengl thread has destroyed the shader
- if (filterblur->shader1)
- gst_gl_context_del_shader (GST_GL_BASE_FILTER (filter)->context,
- filterblur->shader1);
- filterblur->shader1 = NULL;
-}
-
-static void
-gst_gl_filterblur_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- /* GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (object); */
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_gl_filterblur_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- /* GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (object); */
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static gboolean
-gst_gl_filterblur_init_shader (GstGLFilter * filter)
-{
- GstGLFilterBlur *blur_filter = GST_GL_FILTERBLUR (filter);
-
- //blocking call, wait the opengl thread has compiled the shader
- if (!gst_gl_context_gen_shader (GST_GL_BASE_FILTER (filter)->context, 0,
- hconv7_fragment_source_opengl, &blur_filter->shader0))
- return FALSE;
-
- //blocking call, wait the opengl thread has compiled the shader
- if (!gst_gl_context_gen_shader (GST_GL_BASE_FILTER (filter)->context, 0,
- vconv7_fragment_source_opengl, &blur_filter->shader1))
- return FALSE;
-
- return TRUE;
-}
-
-static gboolean
-gst_gl_filterblur_filter_texture (GstGLFilter * filter, guint in_tex,
- guint out_tex)
-{
- GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (filter);
-
- gst_gl_filter_render_to_target (filter, TRUE, in_tex,
- filterblur->midtexture, gst_gl_filterblur_hcallback, filterblur);
-
- gst_gl_filter_render_to_target (filter, FALSE, filterblur->midtexture,
- out_tex, gst_gl_filterblur_vcallback, filterblur);
-
- return TRUE;
-}
-
-static void
-gst_gl_filterblur_hcallback (gint width, gint height, guint texture,
- gpointer stuff)
-{
- GstGLFilter *filter = GST_GL_FILTER (stuff);
- GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (filter);
- GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
-
- gl->MatrixMode (GL_PROJECTION);
- gl->LoadIdentity ();
-
- gst_gl_shader_use (filterblur->shader0);
-
- gl->ActiveTexture (GL_TEXTURE1);
- gl->Enable (GL_TEXTURE_2D);
- gl->BindTexture (GL_TEXTURE_2D, texture);
- gl->Disable (GL_TEXTURE_2D);
-
- gst_gl_shader_set_uniform_1i (filterblur->shader0, "tex", 1);
- gst_gl_shader_set_uniform_1fv (filterblur->shader0, "kernel", 7,
- filterblur->gauss_kernel);
- gst_gl_shader_set_uniform_1f (filterblur->shader0, "gauss_width", width);
-
- gst_gl_filter_draw_texture (filter, texture, width, height);
-}
-
-
-static void
-gst_gl_filterblur_vcallback (gint width, gint height, guint texture,
- gpointer stuff)
-{
- GstGLFilter *filter = GST_GL_FILTER (stuff);
- GstGLFilterBlur *filterblur = GST_GL_FILTERBLUR (filter);
- GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
-
- gl->MatrixMode (GL_PROJECTION);
- gl->LoadIdentity ();
-
- gst_gl_shader_use (filterblur->shader1);
-
- gl->ActiveTexture (GL_TEXTURE1);
- gl->Enable (GL_TEXTURE_2D);
- gl->BindTexture (GL_TEXTURE_2D, texture);
- gl->Disable (GL_TEXTURE_2D);
-
- gst_gl_shader_set_uniform_1i (filterblur->shader1, "tex", 1);
- gst_gl_shader_set_uniform_1fv (filterblur->shader1, "kernel", 7,
- filterblur->gauss_kernel);
- gst_gl_shader_set_uniform_1f (filterblur->shader1, "gauss_height", height);
-
- gst_gl_filter_draw_texture (filter, texture, width, height);
-}
projects / platform / upstream / gstreamer.git / commitdiff