From: Good Guy <good1.2guy@gmail.com>
Date: Thu, 10 Aug 2017 21:43:21 +0000 (-0600)
Subject: titler/crikey grab window warns, c41 rework
X-Git-Url: https://git.cinelerra-gg.org/git/?a=commitdiff_plain;h=47462c7a88ed4f844fa4eaf32a84533aa847b7d5;p=goodguy%2Fhistory.git

titler/crikey grab window warns, c41 rework
---

diff --git a/cinelerra-5.1/plugins/C41/c41.C b/cinelerra-5.1/plugins/C41/c41.C
index c9b3fbe6..32f5afe3 100644
--- a/cinelerra-5.1/plugins/C41/c41.C
+++ b/cinelerra-5.1/plugins/C41/c41.C
@@ -17,155 +17,35 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  */
-
-#include "bcdisplayinfo.h"
-#include "bchash.h"
+#include "c41.h"
+#include "cicolors.h"
 #include "clip.h"
+#include "edlsession.h"
 #include "filexml.h"
-#include "guicast.h"
 #include "language.h"
-#include "cicolors.h"
-#include "pluginvclient.h"
 #include "vframe.h"
 
-#include <stdint.h>
-#include <string.h>
-
-/* Class declarations */
-class C41Effect;
-class C41Window;
-
-struct magic
-{
-	float min_r;
-	float min_g;
-	float min_b;
-	float light;
-	float gamma_g;
-	float gamma_b;
-};
-
-class C41Config
-{
-public:
-	C41Config();
-
-	void copy_from(C41Config &src);
-	int equivalent(C41Config &src);
-	void interpolate(C41Config &prev,
-			C41Config &next,
-			long prev_frame,
-			long next_frame,
-			long current_frame);
-
-	int active;
-	int compute_magic;
-	float fix_min_r;
-	float fix_min_g;
-	float fix_min_b;
-	float fix_light;
-	float fix_gamma_g;
-	float fix_gamma_b;
-};
-
-class C41Enable : public BC_CheckBox
-{
-public:
-	C41Enable(C41Effect *plugin, int *output, int x, int y, char *text);
-	int handle_event();
-	C41Effect *plugin;
-	int *output;
-};
-
-class C41TextBox : public BC_TextBox
-{
-public:
-	C41TextBox(C41Effect *plugin, float *value, int x, int y);
-	int handle_event();
-	C41Effect *plugin;
-	float *boxValue;
-};
-
-class C41Button : public BC_GenericButton
-{
-public:
-	C41Button(C41Effect *plugin, C41Window *window, int x, int y);
-	int handle_event();
-	C41Effect *plugin;
-	C41Window *window;
-	float *boxValue;
-};
-
-class C41Window : public PluginClientWindow
-{
-public:
-	C41Window(C41Effect *plugin);
-	void create_objects();
-	void update();
-	void update_magic();
-	C41Enable *active;
-	C41Enable *compute_magic;
-	BC_Title *min_r;
-	BC_Title *min_g;
-	BC_Title *min_b;
-	BC_Title *light;
-	BC_Title *gamma_g;
-	BC_Title *gamma_b;
-	C41TextBox *fix_min_r;
-	C41TextBox *fix_min_g;
-	C41TextBox *fix_min_b;
-	C41TextBox *fix_light;
-	C41TextBox *fix_gamma_g;
-	C41TextBox *fix_gamma_b;
-	C41Button *lock;
-	C41Effect *plugin;
-};
-
-
-class C41Effect : public PluginVClient
-{
-public:
-	C41Effect(PluginServer *server);
-	~C41Effect();
-	PLUGIN_CLASS_MEMBERS(C41Config);
-
-	int process_buffer(VFrame *frame,
-			int64_t start_position,
-			double frame_rate);
-	int is_realtime();
-	void save_data(KeyFrame *keyframe);
-	void read_data(KeyFrame *keyframe);
-	void update_gui();
-	void render_gui(void* data);
-	int show_gui();
-	void raise_window();
-	float myLog2(float i) __attribute__ ((optimize(0)));
-	float myPow2(float i) __attribute__ ((optimize(0)));
-	float myPow(float a, float b);
-	double difftime_nano(timespec start, timespec end);
-
-	struct magic values;
-};
-
-
 REGISTER_PLUGIN(C41Effect);
 
-
-/* Methods decarations */
-
-// C41Config
 C41Config::C41Config()
 {
 	active = 0;
 	compute_magic = 0;
+	postproc = 0;
+	show_box = 0;
 
-	fix_min_r = fix_min_g = fix_min_b = fix_light = fix_gamma_g = fix_gamma_b = 0.;
+	fix_min_r = fix_min_g = fix_min_b = fix_light = 0.;
+	fix_gamma_g = fix_gamma_b = fix_coef1 = fix_coef2 = 0.;
+	min_col = max_col = min_row = max_row = 0;
+	window_w = 500; window_h = 510;
 }
 
 void C41Config::copy_from(C41Config &src)
 {
 	active = src.active;
 	compute_magic = src.compute_magic;
+	postproc = src.postproc;
+	show_box = src.show_box;
 
 	fix_min_r = src.fix_min_r;
 	fix_min_g = src.fix_min_g;
@@ -173,39 +53,60 @@ void C41Config::copy_from(C41Config &src)
 	fix_light = src.fix_light;
 	fix_gamma_g = src.fix_gamma_g;
 	fix_gamma_b = src.fix_gamma_b;
+	fix_coef1 = src.fix_coef1;
+	fix_coef2 = src.fix_coef2;
+	min_row = src.min_row;
+	max_row = src.max_row;
+	min_col = src.min_col;
+	max_col = src.max_col;
 }
 
 int C41Config::equivalent(C41Config &src)
 {
-	return (src.active == active &&
+	return (active == src.active &&
 		compute_magic == src.compute_magic &&
-		EQUIV(src.fix_min_r, fix_min_r) &&
-		EQUIV(src.fix_min_g, fix_min_g) &&
-		EQUIV(src.fix_min_b, fix_min_b) &&
-		EQUIV(src.fix_light, fix_light) &&
-		EQUIV(src.fix_gamma_g, fix_gamma_g) &&
-		EQUIV(src.fix_gamma_b, fix_gamma_b));
+		postproc == src.postproc &&
+		show_box == src.show_box &&
+		EQUIV(fix_min_r, src.fix_min_r) &&
+		EQUIV(fix_min_g, src.fix_min_g) &&
+		EQUIV(fix_min_b, src.fix_min_b) &&
+		EQUIV(fix_light, src.fix_light) &&
+		EQUIV(fix_gamma_g, src.fix_gamma_g) &&
+		EQUIV(fix_gamma_b, src.fix_gamma_b) &&
+		EQUIV(fix_coef1, src.fix_coef1) &&
+		EQUIV(fix_coef2, src.fix_coef2) &&
+		min_row == src.min_row &&
+		max_row == src.max_row &&
+		min_col == src.min_col &&
+		max_col == src.max_col);
 }
 
-void C41Config::interpolate(C41Config &prev,
-		C41Config &next,
-		long prev_frame,
-		long next_frame,
-		long current_frame)
+void C41Config::interpolate(C41Config &prev, C41Config &next,
+		long prev_frame, long next_frame, long current_frame)
 {
 	active = prev.active;
 	compute_magic = prev.compute_magic;
-
-	fix_min_r = prev.fix_min_r;
-	fix_min_g = prev.fix_min_g;
-	fix_min_b = prev.fix_min_b;
-	fix_light = prev.fix_light;
-	fix_gamma_g = prev.fix_gamma_g;
-	fix_gamma_b = prev.fix_gamma_b;
+	postproc = prev.postproc;
+	show_box = prev.show_box;
+
+	double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
+	double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
+	fix_min_r = prev.fix_min_r * prev_scale + next.fix_min_r * next_scale;
+	fix_min_g = prev.fix_min_g * prev_scale + next.fix_min_g * next_scale;
+	fix_min_b = prev.fix_min_b * prev_scale + next.fix_min_b * next_scale;
+	fix_light = prev.fix_light * prev_scale + next.fix_light * next_scale;
+	fix_gamma_g = prev.fix_gamma_g * prev_scale + next.fix_gamma_g * next_scale;
+	fix_gamma_b = prev.fix_gamma_b * prev_scale + next.fix_gamma_b * next_scale;
+	fix_coef1 = prev.fix_coef1 * prev_scale + next.fix_coef1 * next_scale;
+	fix_coef2 = prev.fix_coef2 * prev_scale + next.fix_coef2 * next_scale;
+	min_row = round(prev.min_row * prev_scale + next.min_row * next_scale);
+	min_col = round(prev.min_col * prev_scale + next.min_col * next_scale);
+	max_row = round(prev.max_row * prev_scale + next.max_row * next_scale);
+	max_col = round(prev.max_col * prev_scale + next.max_col * next_scale);
 }
 
 // C41Enable
-C41Enable::C41Enable(C41Effect *plugin, int *output, int x, int y, char *text)
+C41Enable::C41Enable(C41Effect *plugin, int *output, int x, int y, const char *text)
  : BC_CheckBox(x, y, *output, text)
 {
 	this->plugin = plugin;
@@ -237,7 +138,7 @@ int C41TextBox::handle_event()
 
 // C41Button
 C41Button::C41Button(C41Effect *plugin, C41Window *window, int x, int y)
- : BC_GenericButton(x, y, _("Lock parameters"))
+ : BC_GenericButton(x, y, _("Apply values"))
 {
 	this->plugin = plugin;
 	this->window = window;
@@ -251,45 +152,107 @@ int C41Button::handle_event()
 	plugin->config.fix_light = plugin->values.light;
 	plugin->config.fix_gamma_g = plugin->values.gamma_g;
 	plugin->config.fix_gamma_b = plugin->values.gamma_b;
+	if( plugin->values.coef1 > 0 )
+		plugin->config.fix_coef1 = plugin->values.coef1;
+	if( plugin->values.coef2 > 0 )
+		plugin->config.fix_coef2 = plugin->values.coef2;
 
 	window->update();
+
 	plugin->send_configure_change();
 	return 1;
 }
 
-// C41Window
-C41Window::C41Window(C41Effect *plugin)
- : PluginClientWindow(plugin, 270, 620, 1, 0, 1)
+
+C41BoxButton::C41BoxButton(C41Effect *plugin, C41Window *window, int x, int y)
+ : BC_GenericButton(x, y, _("Apply box"))
 {
 	this->plugin = plugin;
+	this->window = window;
 }
 
-void C41Window::create_objects()
+int C41BoxButton::handle_event()
 {
-	int x = 10;
-	int y = 10;
+	plugin->config.min_row = plugin->values.shave_min_row;
+	plugin->config.max_row = plugin->values.shave_max_row;
+	plugin->config.min_col = plugin->values.shave_min_col;
+	plugin->config.max_col = plugin->values.shave_max_col;
+
+	window->update();
+
+	plugin->send_configure_change();
+	return 1;
+}
 
-	add_subwindow(active = new C41Enable(plugin, &plugin->config.active, x, y, _("Activate processing")));
+
+C41Slider::C41Slider(C41Effect *plugin, int *output, int x, int y, int is_row)
+ : BC_ISlider(x, y, 0, 200, 200, 0, is_row ?
+	plugin->get_edlsession()->output_h :
+	plugin->get_edlsession()->output_w , *output)
+{
+	this->plugin = plugin;
+	this->output = output;
+	this->is_row = is_row;
+	EDLSession *session = plugin->get_edlsession();
+	this->max = is_row ? session->output_h : session->output_w;
+}
+
+int C41Slider::handle_event()
+{
+	*output = get_value();
+	plugin->send_configure_change();
+	return 1;
+}
+
+int C41Slider::update(int v)
+{
+	EDLSession *session = plugin->get_edlsession();
+	int max = is_row ? session->output_h : session->output_w;
+	bclamp(v, 0, max);
+	if( this->max != max ) return BC_ISlider::update(200, v, 0, this->max = max);
+	if( v != get_value() ) return BC_ISlider::update(v);
+	return 1;
+}
+
+const char* C41Effect::plugin_title() { return _("C41"); }
+int C41Effect::is_realtime() { return 1; }
+int C41Effect::is_synthesis() { return 1; }
+
+NEW_WINDOW_MACRO(C41Effect, C41Window);
+LOAD_CONFIGURATION_MACRO(C41Effect, C41Config)
+
+// C41Window
+C41Window::C41Window(C41Effect *plugin)
+ : PluginClientWindow(plugin,
+	plugin->config.window_w, plugin->config.window_h,
+	500, 510, 1)
+{
+	int x = 10, y = 10;
+
+	add_subwindow(active = new C41Enable(plugin,
+		&plugin->config.active, x, y, _("Activate processing")));
 	y += 40;
 
-	add_subwindow(compute_magic = new C41Enable(plugin, &plugin->config.compute_magic, x, y, _("Compute negfix values")));
+	add_subwindow(compute_magic = new C41Enable(plugin,
+		&plugin->config.compute_magic, x, y, _("Compute negfix values")));
 	y += 20;
+
 	add_subwindow(new BC_Title(x + 20, y, _("(uncheck for faster rendering)")));
 	y += 40;
 
 	add_subwindow(new BC_Title(x, y, _("Computed negfix values:")));
 	y += 30;
 
-	add_subwindow(new BC_Title(x, y, _("Min R:")));
-	add_subwindow(min_r = new BC_Title(x + 80, y, "0.0000"));
+	add_subwindow(new BC_Title(x, y, _("Min/Max R:")));
+	add_subwindow(min_r = new BC_Title(x + 80, y, "0.0000 / 0.0000"));
 	y += 30;
 
-	add_subwindow(new BC_Title(x, y, _("Min G:")));
-	add_subwindow(min_g = new BC_Title(x + 80, y, "0.0000"));
+	add_subwindow(new BC_Title(x, y, _("Min/Max G:")));
+	add_subwindow(min_g = new BC_Title(x + 80, y, "0.0000 / 0.0000"));
 	y += 30;
 
-	add_subwindow(new BC_Title(x, y, _("Min B:")));
-	add_subwindow(min_b = new BC_Title(x + 80, y, "0.0000"));
+	add_subwindow(new BC_Title(x, y, _("Min/Max B:")));
+	add_subwindow(min_b = new BC_Title(x + 80, y, "0.0000 / 0.0000"));
 	y += 30;
 
 	add_subwindow(new BC_Title(x, y, _("Light:")));
@@ -304,45 +267,114 @@ void C41Window::create_objects()
 	add_subwindow(gamma_b = new BC_Title(x + 80, y, "0.0000"));
 	y += 30;
 
+	add_subwindow(new BC_Title(x, y, _("Coef 1:")));
+	add_subwindow(coef1 = new BC_Title(x + 80, y, "0.0000"));
+	y += 30;
+
+	add_subwindow(new BC_Title(x, y, _("Coef 2:")));
+	add_subwindow(coef2 = new BC_Title(x + 80, y, "0.0000"));
+	y += 30;
+
 	add_subwindow(lock = new C41Button(plugin, this, x, y));
 	y += 30;
 
-	y += 20;
+#define BOX_COL 120
+	add_subwindow(new BC_Title(x, y, _("Box col:")));
+	add_subwindow(box_col_min = new BC_Title(x + 80, y, "0"));
+	add_subwindow(box_col_max = new BC_Title(x + BOX_COL, y, "0"));
+	y += 30;
+
+	add_subwindow(new BC_Title(x, y, _("Box row:")));
+	add_subwindow(box_row_min = new BC_Title(x + 80, y, "0"));
+	add_subwindow(box_row_max = new BC_Title(x + BOX_COL, y, "0"));
+	y += 30;
+
+	add_subwindow(boxlock = new C41BoxButton(plugin, this, x, y));
+
+	y = 10;
+	x = 250;
+	add_subwindow(show_box = new C41Enable(plugin,
+		&plugin->config.show_box, x, y, _("Show active area")));
+	y += 40;
+
+	add_subwindow(postproc = new C41Enable(plugin,
+		&plugin->config.postproc, x, y, _("Postprocess")));
+	y += 60;
+
 	add_subwindow(new BC_Title(x, y, _("negfix values to apply:")));
 	y += 30;
 
 	add_subwindow(new BC_Title(x, y, _("Min R:")));
-	add_subwindow(fix_min_r = new C41TextBox(plugin, &plugin->config.fix_min_r, x + 80, y));
+	add_subwindow(fix_min_r = new C41TextBox(plugin,
+		&plugin->config.fix_min_r, x + 80, y));
 	y += 30;
 
 	add_subwindow(new BC_Title(x, y, _("Min G:")));
-	add_subwindow(fix_min_g = new C41TextBox(plugin, &plugin->config.fix_min_g, x + 80, y));
+	add_subwindow(fix_min_g = new C41TextBox(plugin,
+		&plugin->config.fix_min_g, x + 80, y));
 	y += 30;
 
 	add_subwindow(new BC_Title(x, y, _("Min B:")));
-	add_subwindow(fix_min_b = new C41TextBox(plugin, &plugin->config.fix_min_b, x + 80, y));
+	add_subwindow(fix_min_b = new C41TextBox(plugin,
+		&plugin->config.fix_min_b, x + 80, y));
 	y += 30;
 
 	add_subwindow(new BC_Title(x, y, _("Light:")));
-	add_subwindow(fix_light = new C41TextBox(plugin, &plugin->config.fix_light, x + 80, y));
+	add_subwindow(fix_light = new C41TextBox(plugin,
+		 &plugin->config.fix_light, x + 80, y));
 	y += 30;
 
 	add_subwindow(new BC_Title(x, y, _("Gamma G:")));
-	add_subwindow(fix_gamma_g = new C41TextBox(plugin, &plugin->config.fix_gamma_g, x + 80, y));
+	add_subwindow(fix_gamma_g = new C41TextBox(plugin,
+		 &plugin->config.fix_gamma_g, x + 80, y));
 	y += 30;
 
 	add_subwindow(new BC_Title(x, y, _("Gamma B:")));
-	add_subwindow(fix_gamma_b = new C41TextBox(plugin, &plugin->config.fix_gamma_b, x + 80, y));
+	add_subwindow(fix_gamma_b = new C41TextBox(plugin,
+		 &plugin->config.fix_gamma_b, x + 80, y));
 	y += 30;
-	show_window();
-	flush();
+
+	add_subwindow(new BC_Title(x, y, _("Coef 1:")));
+	add_subwindow(fix_coef1 = new C41TextBox(plugin,
+		 &plugin->config.fix_coef1, x + 80, y));
+	y += 30;
+
+	add_subwindow(new BC_Title(x, y, _("Coef 2:")));
+	add_subwindow(fix_coef2 = new C41TextBox(plugin,
+		 &plugin->config.fix_coef2, x + 80, y));
+	y += 30;
+
+	x += 40;
+	add_subwindow(new BC_Title(x - 40, y, _("Col:")));
+	add_subwindow(min_col = new C41Slider(plugin,
+		 &plugin->config.min_col, x, y, 0));
+	y += 25;
+
+	add_subwindow(max_col = new C41Slider(plugin,
+		 &plugin->config.max_col, x, y, 0));
+	y += 25;
+
+	add_subwindow(new BC_Title(x - 40, y, _("Row:")));
+	add_subwindow(min_row = new C41Slider(plugin,
+		 &plugin->config.min_row, x, y, 1));
+	y += 25;
+
+	add_subwindow(max_row = new C41Slider(plugin,
+		 &plugin->config.max_row, x, y, 1));
+	y += 25;
+
 	update_magic();
+	show_window(1);
 }
 
 void C41Window::update()
 {
+	C41Effect *plugin = (C41Effect *)client;
+	// Updating the GUI itself
 	active->update(plugin->config.active);
 	compute_magic->update(plugin->config.compute_magic);
+	postproc->update(plugin->config.postproc);
+	show_box->update(plugin->config.show_box);
 
 	fix_min_r->update(plugin->config.fix_min_r);
 	fix_min_g->update(plugin->config.fix_min_g);
@@ -350,61 +382,74 @@ void C41Window::update()
 	fix_light->update(plugin->config.fix_light);
 	fix_gamma_g->update(plugin->config.fix_gamma_g);
 	fix_gamma_b->update(plugin->config.fix_gamma_b);
+	fix_coef1->update(plugin->config.fix_coef1);
+	fix_coef2->update(plugin->config.fix_coef2);
+
+	min_row->update(plugin->config.min_row);
+	max_row->update(plugin->config.max_row);
+	min_col->update(plugin->config.min_col);
+	max_col->update(plugin->config.max_col);
 
 	update_magic();
 }
 
 void C41Window::update_magic()
 {
-	min_r->update(plugin->values.min_r);
-	min_g->update(plugin->values.min_g);
-	min_b->update(plugin->values.min_b);
+	C41Effect *plugin = (C41Effect *)client;
+	char text[BCSTRLEN];
+	sprintf(text, "%0.4f / %0.4f", plugin->values.min_r, plugin->values.max_r);
+	min_r->update(text);
+	sprintf(text, "%0.4f / %0.4f", plugin->values.min_g, plugin->values.max_g);
+	min_g->update(text);
+	sprintf(text, "%0.4f / %0.4f", plugin->values.min_b, plugin->values.max_b);
+	min_b->update(text);
 	light->update(plugin->values.light);
 	gamma_g->update(plugin->values.gamma_g);
 	gamma_b->update(plugin->values.gamma_b);
+	// Avoid blinking
+	if( plugin->values.coef1 > 0 || plugin->values.coef2 > 0 ) {
+		coef1->update(plugin->values.coef1);
+		coef2->update(plugin->values.coef2);
+	}
+	sprintf(text, "%d", plugin->values.shave_min_col);
+	box_col_min->update(text);
+	sprintf(text, "%d", plugin->values.shave_max_col);
+	box_col_max->update(text);
+	sprintf(text, "%d", plugin->values.shave_min_row);
+	box_row_min->update(text);
+	sprintf(text, "%d", plugin->values.shave_max_row);
+	box_row_max->update(text);
 }
 
 
 // C41Effect
 C41Effect::C41Effect(PluginServer *server)
- : PluginVClient(server)
+: PluginVClient(server)
 {
+	frame = 0;
+	tmp_frame = 0;
+	blurry_frame = 0;
 	memset(&values, 0, sizeof(values));
 }
 
 C41Effect::~C41Effect()
 {
-}
-
-const char* C41Effect::plugin_title() { return _("C41"); }
-
-int C41Effect::is_realtime() { return 1; }
-
-LOAD_CONFIGURATION_MACRO(C41Effect, C41Config)
-
-
-NEW_WINDOW_MACRO(C41Effect, C41Window)
-
-void C41Effect::update_gui()
-{
-	if(thread && load_configuration())
-	{
-		C41Window  *window = (C41Window *)thread->window;
-		window->lock_window("C41Effect::update_gui");
-		window->update();
-		window->unlock_window();
-	}
+	delete frame;
+	delete tmp_frame;
+	delete blurry_frame;
 }
 
 void C41Effect::render_gui(void* data)
 {
 	// Updating values computed by process_frame
 	struct magic *vp = (struct magic *)data;
-
 	values = *vp;
-	if(thread) {
-		C41Window  *window = (C41Window *)thread->window;
+
+	if( thread ) {
+		C41Window *window = (C41Window *) thread->window;
+		window->lock_window("C41Effect::render_gui");
 		window->update_magic();
+		window->unlock_window();
 	}
 }
 
@@ -412,9 +457,12 @@ void C41Effect::save_data(KeyFrame *keyframe)
 {
 	FileXML output;
 	output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
+
 	output.tag.set_title("C41");
 	output.tag.set_property("ACTIVE", config.active);
 	output.tag.set_property("COMPUTE_MAGIC", config.compute_magic);
+	output.tag.set_property("POSTPROC", config.postproc);
+	output.tag.set_property("SHOW_BOX", config.show_box);
 
 	output.tag.set_property("FIX_MIN_R", config.fix_min_r);
 	output.tag.set_property("FIX_MIN_G", config.fix_min_g);
@@ -422,7 +470,12 @@ void C41Effect::save_data(KeyFrame *keyframe)
 	output.tag.set_property("FIX_LIGHT", config.fix_light);
 	output.tag.set_property("FIX_GAMMA_G", config.fix_gamma_g);
 	output.tag.set_property("FIX_GAMMA_B", config.fix_gamma_b);
-
+	output.tag.set_property("FIX_COEF1", config.fix_coef1);
+	output.tag.set_property("FIX_COEF2", config.fix_coef2);
+	output.tag.set_property("MIN_ROW", config.min_row);
+	output.tag.set_property("MAX_ROW", config.max_row);
+	output.tag.set_property("MIN_COL", config.min_col);
+	output.tag.set_property("MAX_COL", config.max_col);
 	output.append_tag();
 	output.tag.set_title("/C41");
 	output.append_tag();
@@ -433,35 +486,37 @@ void C41Effect::read_data(KeyFrame *keyframe)
 {
 	FileXML input;
 	input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
+
 	while(!input.read_tag())
 	{
-		if(input.tag.title_is("C41"))
-		{
+		if( input.tag.title_is("C41") ) {
 			config.active = input.tag.get_property("ACTIVE", config.active);
 			config.compute_magic = input.tag.get_property("COMPUTE_MAGIC", config.compute_magic);
-
+			config.postproc = input.tag.get_property("POSTPROC", config.postproc);
+			config.show_box = input.tag.get_property("SHOW_BOX", config.show_box);
 			config.fix_min_r = input.tag.get_property("FIX_MIN_R", config.fix_min_r);
 			config.fix_min_g = input.tag.get_property("FIX_MIN_G", config.fix_min_g);
 			config.fix_min_b = input.tag.get_property("FIX_MIN_B", config.fix_min_b);
 			config.fix_light = input.tag.get_property("FIX_LIGHT", config.fix_light);
 			config.fix_gamma_g = input.tag.get_property("FIX_GAMMA_G", config.fix_gamma_g);
 			config.fix_gamma_b = input.tag.get_property("FIX_GAMMA_B", config.fix_gamma_b);
+			config.fix_coef1 = input.tag.get_property("FIX_COEF1", config.fix_coef2);
+			config.fix_coef2 = input.tag.get_property("FIX_COEF2", config.fix_coef2);
+			config.min_row = input.tag.get_property("MIN_ROW", config.min_row);
+			config.max_row = input.tag.get_property("MAX_ROW", config.max_row);
+			config.min_col = input.tag.get_property("MIN_COL", config.min_col);
+			config.max_col = input.tag.get_property("MAX_COL", config.max_col);
 		}
 	}
 }
 
+#if defined(C41_FAST_POW)
 
-/* Faster pow() approximation; borrowed from http://www.dctsystems.co.uk/Software/power.html
- * Tests on real-world data showed a max error of 4% and avg. error or .1 to .5%,
- * while accelerating rendering by a factor of 4.
- */
 float C41Effect::myLog2(float i)
 {
-	float x;
-	float y;
+	float x, y;
 	float LogBodge = 0.346607f;
-	union { float f; int i; } v;
-	v.f = i;  x = v.i;
+	x = *(int *)&i;
 	x *= 1.0 / (1 << 23); // 1/pow(2,23);
 	x = x - 127;
 
@@ -479,8 +534,7 @@ float C41Effect::myPow2(float i)
 
 	x = i + 127 - y;
 	x *= (1 << 23);
-	union { float f; int i; } v;
-	v.i = (int)x;  x = v.f;
+	*(int*)&x = (int)x;
 	return x;
 }
 
@@ -489,129 +543,313 @@ float C41Effect::myPow(float a, float b)
 	return myPow2(b * myLog2(a));
 }
 
+#endif
 
-int C41Effect::process_buffer(VFrame *vframe,
-		int64_t start_position,
-		double frame_rate)
+int C41Effect::process_realtime(VFrame *input, VFrame *output)
 {
 	load_configuration();
-	VFrame *frame = vframe;
-	read_frame(frame, 0, start_position, frame_rate, 0);
-
-	int frame_w = frame->get_w();
-	int frame_h = frame->get_h();
-	int color_model = frame->get_color_model();
-	int active_model = BC_CModels::has_alpha(color_model) ?
-		BC_RGBA_FLOAT : BC_RGB_FLOAT;
-	int components = active_model == BC_RGBA_FLOAT ? 4 : 3;
-
-	if( color_model != active_model ) {
-		new_temp(frame_w, frame_h, active_model);
-		frame = get_temp();
-		frame->transfer_from(vframe);
+
+	int frame_w = input->get_w(), frame_h = input->get_h();
+	int input_model = input->get_color_model();
+	int has_alpha = BC_CModels::has_alpha(input_model);
+	int color_model = has_alpha ? BC_RGBA_FLOAT : BC_RGB_FLOAT;
+
+	if( input_model != color_model ) {
+		if( frame &&
+		    ( frame->get_w() != frame_w || frame->get_h() != frame_h ||
+		      frame->get_color_model() != color_model ) ) {
+			delete frame;  frame = 0;
+		}
+		if( !frame )
+			frame = new VFrame(frame_w, frame_h, color_model);
+		frame->transfer_from(input);
+	}
+	else {
+		delete frame;
+		frame = input;
 	}
 
-	if(config.compute_magic) {
-		// Box blur!
-		VFrame* tmp_frame = new VFrame(*frame);
-		VFrame* blurry_frame = new VFrame(*frame);
+	pix_max = BC_CModels::calculate_max(color_model);
+	pix_len = BC_CModels::components(color_model);
 
-		float** rows = (float**)frame->get_rows();
-		float** tmp_rows = (float**)tmp_frame->get_rows();
-		float** blurry_rows = (float**)blurry_frame->get_rows();
-		for(int i = 0; i < frame_h; i++)
-			for(int j = 0; j < (components*frame_w); j++)
-				blurry_rows[i][j] = rows[i][j];
+	min_row = config.min_row;  bclamp(min_row, 0,frame_h);
+	max_row = config.max_row;  bclamp(max_row, 0,frame_h);
+	min_col = config.min_col;  bclamp(min_col, 0,frame_w);
+	max_col = config.max_col;  bclamp(max_col, 0,frame_w);
+
+	if( config.compute_magic ) {
+		// Convert frame to RGB for magic computing
+		if( tmp_frame &&
+		    (tmp_frame->get_w() != frame_w || tmp_frame->get_h() != frame_h) ) {
+			delete tmp_frame;  tmp_frame = 0;
+		}
+		if( !tmp_frame )
+			tmp_frame = new VFrame(frame_w, frame_h, BC_RGB_FLOAT);
+		if( blurry_frame &&
+		    (blurry_frame->get_w() != frame_w || blurry_frame->get_h() != frame_h) ) {
+			delete blurry_frame;  blurry_frame = 0;
+		}
+		if( !blurry_frame )
+			blurry_frame = new VFrame(frame_w, frame_h, BC_RGB_FLOAT);
+
+		float **rows = (float **)frame->get_rows();
+		float **tmp_rows = (float **)tmp_frame->get_rows();
+		float **blurry_rows = (float **)blurry_frame->get_rows();
+
+		for( int i=0; i<frame_h; ++i ) {
+			float *row = rows[i], *tmp = tmp_rows[i];
+			for( int j=frame_w; --j>=0; row+=pix_len ) {
+				*tmp++ = fix_exepts(row[0]);
+				*tmp++ = fix_exepts(row[1]);
+				*tmp++ = fix_exepts(row[2]);
+			}
+		}
 
-		int boxw = 5, boxh = 5;
 		// 10 passes of Box blur should be good
-		int pass, x, y, y_up, y_down, x_right, x_left;
-		float component;
-		for(pass=0; pass<10; pass++) {
-			for(y = 0; y < frame_h; y++)
-				for(x = 0; x < (components * frame_w); x++)
-					tmp_rows[y][x] = blurry_rows[y][x];
-			for(y = 0; y < frame_h; y++) {
-				y_up = (y - boxh < 0)? 0 : y - boxh;
-				y_down = (y + boxh >= frame_h)? frame_h - 1 : y + boxh;
-				for(x = 0; x < (components*frame_w); x++) {
-					x_left = (x-(components*boxw) < 0)? 0 : x-(components*boxw);
-					x_right = (x+(components*boxw) >= (components*frame_w)) ?
-						(components*frame_w)-1 : x+(components*boxw);
-					component = (tmp_rows[y_down][x_right]
-							+tmp_rows[y_up][x_left]
-							+tmp_rows[y_up][x_right]
-							+tmp_rows[y_down][x_right])/4;
-					blurry_rows[y][x] = component;
+		int dx = 5, dy = 5, y_up, y_dn, x_rt, x_lt;
+		float **src = tmp_rows, **tgt = blurry_rows;
+		for( int pass = 0; pass < 10; pass++ ) {
+			for( int y = 0; y < frame_h; y++ ) {
+				if( (y_up=y-dy) < 0 ) y_up = 0;
+				if( (y_dn=y+dy) >= frame_h ) y_dn = frame_h-1;
+				float *up = src[y_up], *dn = src[y_dn], *row = tgt[y];
+				for( int x = 0; x < frame_w; ++x ) {
+					if( (x_lt=x-dx) < 0 ) x_lt = 0;
+					if( (x_rt=x+dx) >= frame_w ) x_lt = frame_w-1;
+					float *dn_l = dn + 3*x_lt, *dn_r = dn + 3*x_rt;
+					float *up_l = up + 3*x_lt, *up_r = up + 3*x_rt;
+					row[0] = (dn_l[0] + dn_r[0] + up_l[0] + up_r[0]) / 4;
+					row[1] = (dn_l[1] + dn_r[1] + up_l[1] + up_r[1]) / 4;
+					row[2] = (dn_l[2] + dn_r[2] + up_l[2] + up_r[2]) / 4;
+					row += 3;
 				}
 			}
+			float **rows = src;  src = tgt;  tgt = rows;
+		}
+
+		// Shave image: cut off border areas where min max difference
+		// is less than C41_SHAVE_TOLERANCE, starting/ending at C41_SHAVE_MARGIN
+
+		shave_min_row = shave_min_col = 0;
+		shave_max_col = frame_w;
+		shave_max_row = frame_h;
+		int min_w = frame_w * C41_SHAVE_MARGIN;
+		int max_w = frame_w * (1-C41_SHAVE_MARGIN);
+		int min_h = frame_h * C41_SHAVE_MARGIN;
+		int max_h = frame_h * (1-C41_SHAVE_MARGIN);
+
+		float yv_min[frame_h], yv_max[frame_h];
+		for( int y=0; y<frame_h; ++y ) {
+			yv_min[y] = pix_max;
+			yv_max[y] = 0.;
 		}
 
+		for( int y = 0; y < frame_h; y++ ) {
+			float *row = blurry_rows[y];
+			for( int x = 0; x < frame_w; x++, row += 3 ) {
+				float yv = (row[0] + row[1] + row[2]) / 3;
+				if( yv_min[y] > yv ) yv_min[y] = yv;
+				if( yv_max[y] < yv ) yv_max[y] = yv;
+			}
+		}
+
+		for( shave_min_row = min_h; shave_min_row < max_h; shave_min_row++ )
+			if( yv_max[shave_min_row] - yv_min[shave_min_row] > C41_SHAVE_TOLERANCE )
+				break;
+		for( shave_max_row = max_h - 1; shave_max_row > shave_min_row; shave_max_row-- )
+			if( yv_max[shave_max_row] - yv_min[shave_max_row] > C41_SHAVE_TOLERANCE )
+				break;
+		shave_max_row++;
+
+		float xv_min[frame_w], xv_max[frame_w];
+		for( int x=0; x<frame_w; ++x ) {
+			xv_min[x] = pix_max;
+			xv_max[x] = 0.;
+		}
+
+		for( int y = shave_min_row; y < shave_max_row; y++ ) {
+			float *row = blurry_rows[y];
+			for( int x = 0; x < frame_w; x++, row += 3 ) {
+				float xv = (row[0] + row[1] + row[2]) / 3;
+				if( xv_min[x] > xv ) xv_min[x] = xv;
+				if( xv_max[x] < xv ) xv_max[x] = xv;
+			}
+		}
+
+		for( shave_min_col = min_w; shave_min_col < max_w; shave_min_col++ )
+			if( xv_max[shave_min_col] - xv_min[shave_min_col] > C41_SHAVE_TOLERANCE )
+				break;
+		for( shave_max_col = max_w - 1; shave_max_col > shave_min_col; shave_max_col-- )
+			if( xv_max[shave_max_col] - xv_min[shave_max_col] > C41_SHAVE_TOLERANCE )
+				break;
+		shave_max_col++;
+
 		// Compute magic negfix values
 		float minima_r = 50., minima_g = 50., minima_b = 50.;
-		float maxima_r = 0.,  maxima_g = 0.,  maxima_b = 0.;
-
-		// Shave the image in order to avoid black borders
-		// Tolerance default: 5%, i.e. 0.05
-#define TOLERANCE 0.20
-#define SKIP_ROW if (i < (TOLERANCE * frame_h) || i > ((1-TOLERANCE)*frame_h)) continue
-#define SKIP_COL if (j < (TOLERANCE * frame_w) || j > ((1-TOLERANCE)*frame_w)) continue
-for(int i = 0; i < frame_h; i++)
-		{
-			SKIP_ROW;
-			float *row = (float*)blurry_frame->get_rows()[i];
-			for(int j = 0; j < frame_w; j++, row += components) {
-				SKIP_COL;
-				if(row[0] < minima_r) minima_r = row[0];
-				if(row[0] > maxima_r) maxima_r = row[0];
-
-				if(row[1] < minima_g) minima_g = row[1];
-				if(row[1] > maxima_g) maxima_g = row[1];
-
-				if(row[2] < minima_b) minima_b = row[2];
-				if(row[2] > maxima_b) maxima_b = row[2];
-			}
+		float maxima_r = 0., maxima_g = 0., maxima_b = 0.;
+
+		// Check if config_parameters are usable
+		if( config.min_col >= config.max_col || config.min_row >= config.max_row ) {
+			min_col = shave_min_col;
+			max_col = shave_max_col;
+			min_row = shave_min_row;
+			max_row = shave_max_row;
 		}
 
-		// Delete the VFrames we used for blurring
-		delete tmp_frame;
-		delete blurry_frame;
-
-		if( minima_r < 1e-3) minima_r = 1e-3;
-		if( minima_g < 1e-3) minima_g = 1e-3;
-		if( minima_b < 1e-3) minima_b = 1e-3;
-		values.min_r = minima_r;
-		values.min_g = minima_g;
-		values.min_b = minima_b;
-		values.light = (minima_r / maxima_r) * 0.95;
-		values.gamma_g = fabs(maxima_g - minima_g) < 1e-3 ? 1. :
-			logf(maxima_r / minima_r) / logf(maxima_g / minima_g);
-		values.gamma_b = fabs(maxima_b - minima_b) < 1e-3 ? 1. :
-			logf(maxima_r / minima_r) / logf(maxima_b / minima_b);
+		for( int i = min_row; i < max_row; i++ ) {
+			float *row = blurry_rows[i] + 3 * min_col;
+			for( int j = min_col; j < max_col; j++, row+=3 ) {
+				if( row[0] < minima_r ) minima_r = row[0];
+				if( row[0] > maxima_r ) maxima_r = row[0];
+				if( row[1] < minima_g ) minima_g = row[1];
+				if( row[1] > maxima_g ) maxima_g = row[1];
+				if( row[2] < minima_b ) minima_b = row[2];
+				if( row[2] > maxima_b ) maxima_b = row[2];
+			}
+		}
+		if( minima_r < 1e-6 ) minima_r = 1e-6;
+		if( minima_g < 1e-6 ) minima_g = 1e-6;
+		if( minima_b < 1e-6 ) minima_b = 1e-6;
+		values.min_r = minima_r;  values.max_r = maxima_r;
+		values.min_g = minima_g;  values.max_g = maxima_g;
+		values.min_b = minima_b;  values.max_b = maxima_b;
+		values.light = maxima_r < 1e-6 ? 1.0 : minima_r / maxima_r;
+		values.gamma_g = logf(maxima_r / minima_r) / logf(maxima_g / minima_g);
+		values.gamma_b = logf(maxima_r / minima_r) / logf(maxima_b / minima_b);
+		values.shave_min_col = shave_min_col;
+		values.shave_max_col = shave_max_col;
+		values.shave_min_row = shave_min_row;
+		values.shave_max_row = shave_max_row;
+		values.coef1 = -1;
+		values.coef2 = -1;
 
 		// Update GUI
 		send_render_gui(&values);
 	}
 
 	// Apply the transformation
-	if(config.active) {
-		// Get the values from the config instead of the computed ones
-		for(int i = 0; i < frame_h; i++) {
+	if( config.active ) {
+		for( int i = 0; i < frame_h; i++ ) {
 			float *row = (float*)frame->get_rows()[i];
-			for(int j = 0; j < frame_w; j++, row += components) {
-				row[0] = row[0] < 1e-3 ? 1.f :
-					(config.fix_min_r / row[0]) - config.fix_light;
-				row[1] = row[1] < 1e-3 ? 1.f :
-					myPow((config.fix_min_g / row[1]), config.fix_gamma_g) - config.fix_light;
-				row[2] = row[2] < 1e-3 ? 1.f :
-					myPow((config.fix_min_b / row[2]), config.fix_gamma_b) - config.fix_light;
+			for( int j = 0; j < frame_w; j++, row += pix_len ) {
+				float r0 = row[0] >= 1e-6 ? row[0] : 1e-6;
+				float v0 = config.fix_min_r / r0 - config.fix_light;
+				row[0] = normalize_pixel(v0 - config.fix_light);
+				float r1 = row[1] >= 1e-6 ? row[1] : 1e-6;
+				float v1 = POWF((config.fix_min_g / r1), config.fix_gamma_g);
+				row[1] = normalize_pixel(v1 - config.fix_light);
+				float r2 = row[2] >= 1e-6 ? row[2] : 1e-6;
+				float v2 = POWF((config.fix_min_b / r2), config.fix_gamma_b);
+				row[2] = normalize_pixel(v2 - config.fix_light);
+			}
+		}
+		if( config.compute_magic && !config.postproc ) {
+			float minima_r = 50., minima_g = 50., minima_b = 50.;
+			float maxima_r = 0., maxima_g = 0., maxima_b = 0.;
+
+			for( int i = min_row; i < max_row; i++ ) {
+				float *row = (float*)frame->get_rows()[i];
+				row += 3 * shave_min_col;
+				for( int j = min_col; j < max_col; j++, row += 3 ) {
+					if( row[0] < minima_r ) minima_r = row[0];
+					if( row[0] > maxima_r ) maxima_r = row[0];
+
+					if( row[1] < minima_g ) minima_g = row[1];
+					if( row[1] > maxima_g ) maxima_g = row[1];
+
+					if( row[2] < minima_b ) minima_b = row[2];
+					if( row[2] > maxima_b ) maxima_b = row[2];
+				}
+			}
+
+			// Calculate postprocessing coeficents
+			values.coef2 = minima_r;
+			if( minima_g < values.coef2 )
+				values.coef2 = minima_g;
+			if( minima_b < values.coef2 )
+				values.coef2 = minima_b;
+			values.coef1 = maxima_r;
+			if( maxima_g > values.coef1 )
+				values.coef1 = maxima_g;
+			if( maxima_b > values.coef1 )
+				values.coef1 = maxima_b;
+			// Try not to overflow RGB601
+			// (235 - 16) / 256 * 0.9
+			float den = values.coef1 - values.coef2;
+			if( fabs(den) < 1e-6 )
+				den = den < 0 ? -1e-6 : 1e-6;
+			values.coef1 = 0.770 / den;
+			values.coef2 = 0.065 - values.coef2 * values.coef1;
+			send_render_gui(&values);
+		}
+	}
+
+	if( config.show_box ) {
+		float **rows = (float **)frame->get_rows();
+		if( min_row < max_row - 1 ) {
+			float *row1 = (float *)rows[min_row];
+			float *row2 = (float *)rows[max_row - 1];
+
+			for( int i = 0; i < frame_w; i++ ) {
+				for( int j = 0; j < 3; j++ ) {
+					row1[j] = pix_max - row1[j];
+					row2[j] = pix_max - row2[j];
+				}
+				if( has_alpha ) {
+					row1[3] = pix_max;
+					row2[3] = pix_max;
+				}
+				row1 += pix_len;
+				row2 += pix_len;
+			}
+		}
+
+		if( min_col < max_col - 1 ) {
+			int pix1 = pix_len * min_col;
+			int pix2 = pix_len * (max_col - 1);
+
+			for( int i = 0; i < frame_h; i++ ) {
+				float *row1 = rows[i] + pix1;
+				float *row2 = rows[i] + pix2;
+
+				for( int j = 0; j < 3; j++ ) {
+					row1[j] = pix_max - row1[j];
+					row2[j] = pix_max - row2[j];
+				}
+				if( has_alpha ) {
+					row1[3] = pix_max;
+					row2[3] = pix_max;
+				}
 			}
 		}
 	}
 
-	if( vframe != frame )
-		vframe->transfer_from(frame);
+	if( frame != output )
+		output->transfer_from(frame);
+	if( frame == input )
+		frame = 0;
 
 	return 0;
 }
 
+float C41Effect::normalize_pixel(float ival)
+{
+	float val = fix_exepts(ival);
+
+	if( config.postproc )
+		val = config.fix_coef1 * val + config.fix_coef2;
+
+	CLAMP(val, 0., pix_max);
+	return val;
+}
+
+float C41Effect::fix_exepts(float ival)
+{
+	switch( fpclassify(ival) ) {
+	case FP_NAN:
+	case FP_SUBNORMAL: return 0;
+	case FP_INFINITE:  return ival < 0 ? 0 : pix_max;
+	}
+	return ival;
+}
+
diff --git a/cinelerra-5.1/plugins/C41/c41.h b/cinelerra-5.1/plugins/C41/c41.h
new file mode 100644
index 00000000..e2ec0278
--- /dev/null
+++ b/cinelerra-5.1/plugins/C41/c41.h
@@ -0,0 +1,195 @@
+#ifndef __C41_H__
+#define __C41_H__
+
+#include "guicast.h"
+#include "pluginvclient.h"
+#include "vframe.inc"
+
+// C41_FAST_POW increases processing speed more than 10 times
+// Depending on gcc version, used optimizations and cpu C41_FAST_POW may not work
+// With gcc versiion >= 4.4 it seems safe to enable C41_FAST_POW
+// Test some samples after you have enabled it
+#define C41_FAST_POW
+
+#ifdef C41_FAST_POW
+#define POWF myPow
+#else
+#define POWF powf
+#endif
+
+// Shave the image in order to avoid black borders
+// The min max pixel value difference must be at least 0.05
+#define C41_SHAVE_TOLERANCE 0.05
+#define C41_SHAVE_MARGIN 0.1
+
+#include <stdint.h>
+#include <string.h>
+
+class C41Effect;
+class C41Window;
+class C41Config;
+class C41Enable;
+class C41TextBox;
+class C41Button;
+class C41BoxButton;
+class C41Slider;
+
+struct magic
+{
+	float min_r, max_r;
+	float min_g, max_g;
+	float min_b, max_b;
+	float light;
+	float gamma_g, gamma_b;
+	float coef1, coef2;
+	int shave_min_row, shave_max_row;
+	int shave_min_col, shave_max_col;
+};
+
+class C41Config
+{
+public:
+	C41Config();
+
+	void copy_from(C41Config &src);
+	int equivalent(C41Config &src);
+	void interpolate(C41Config &prev, C41Config &next,
+		long prev_frame, long next_frame, long current_frame);
+
+	int active, compute_magic;
+	int postproc, show_box;
+	float fix_min_r, fix_min_g, fix_min_b;
+	float fix_light, fix_gamma_g, fix_gamma_b;
+	float fix_coef1, fix_coef2;
+	int min_col, max_col, min_row, max_row;
+	int window_w, window_h;
+};
+
+class C41Enable : public BC_CheckBox
+{
+public:
+	C41Enable(C41Effect *plugin, int *output, int x, int y, const char *text);
+	int handle_event();
+
+	C41Effect *plugin;
+	int *output;
+};
+
+class C41TextBox : public BC_TextBox
+{
+public:
+	C41TextBox(C41Effect *plugin, float *value, int x, int y);
+	int handle_event();
+
+	C41Effect *plugin;
+	float *boxValue;
+};
+
+class C41Button : public BC_GenericButton
+{
+public:
+	C41Button(C41Effect *plugin, C41Window *window, int x, int y);
+	int handle_event();
+
+	C41Effect *plugin;
+	C41Window *window;
+};
+
+class C41BoxButton : public BC_GenericButton
+{
+public:
+	C41BoxButton(C41Effect *plugin, C41Window *window, int x, int y);
+	int handle_event();
+
+	C41Effect *plugin;
+	C41Window *window;
+};
+
+class C41Slider : public BC_ISlider
+{
+public:
+	C41Slider(C41Effect *plugin, int *output, int x, int y, int is_row);
+
+	int handle_event();
+	int update(int v);
+
+	C41Effect *plugin;
+	int is_row, max;
+	int *output;
+};
+
+class C41Window : public PluginClientWindow
+{
+public:
+	C41Window(C41Effect *client);
+
+	void update();
+	void update_magic();
+
+	C41Enable *active;
+	C41Enable *compute_magic;
+	C41Enable *postproc;
+	C41Enable *show_box;
+	BC_Title *min_r;
+	BC_Title *min_g;
+	BC_Title *min_b;
+	BC_Title *light;
+	BC_Title *gamma_g;
+	BC_Title *gamma_b;
+	BC_Title *coef1;
+	BC_Title *coef2;
+	BC_Title *box_col_min;
+	BC_Title *box_col_max;
+	BC_Title *box_row_min;
+	BC_Title *box_row_max;
+	C41TextBox *fix_min_r;
+	C41TextBox *fix_min_g;
+	C41TextBox *fix_min_b;
+	C41TextBox *fix_light;
+	C41TextBox *fix_gamma_g;
+	C41TextBox *fix_gamma_b;
+	C41TextBox *fix_coef1;
+	C41TextBox *fix_coef2;
+	C41Button *lock;
+	C41BoxButton *boxlock;
+	C41Slider *min_row;
+	C41Slider *max_row;
+	C41Slider *min_col;
+	C41Slider *max_col;
+
+	int slider_max_col;
+	int slider_max_row;
+};
+
+class C41Effect : public PluginVClient
+{
+public:
+	C41Effect(PluginServer *server);
+	~C41Effect();
+
+	PLUGIN_CLASS_MEMBERS(C41Config);
+	int is_realtime();
+	int is_synthesis();
+
+	int process_realtime(VFrame *input_ptr, VFrame *output_ptr);
+	void save_data(KeyFrame *keyframe);
+	void read_data(KeyFrame *keyframe);
+	void render_gui(void* data);
+	float fix_exepts(float ival);
+	float normalize_pixel(float ival);
+#if defined(C41_FAST_POW)
+	float myLog2(float i) __attribute__ ((optimize(0)));
+	float myPow2(float i) __attribute__ ((optimize(0)));
+	float myPow(float a, float b);
+#endif
+	VFrame *frame, *tmp_frame, *blurry_frame;
+	struct magic values;
+
+	int shave_min_row, shave_max_row, shave_min_col, shave_max_col;
+	int min_col, max_col, min_row, max_row;
+	float pix_max;
+	int pix_len;
+};
+
+
+#endif
diff --git a/cinelerra-5.1/plugins/crikey/crikeywindow.C b/cinelerra-5.1/plugins/crikey/crikeywindow.C
index 3f72f3de..e774bae8 100644
--- a/cinelerra-5.1/plugins/crikey/crikeywindow.C
+++ b/cinelerra-5.1/plugins/crikey/crikeywindow.C
@@ -29,6 +29,7 @@
 #include "edl.h"
 #include "edlsession.h"
 #include "language.h"
+#include "mainerror.h"
 #include "mwindow.h"
 #include "plugin.h"
 #include "pluginserver.h"
@@ -171,8 +172,8 @@ CriKeyWindow::CriKeyWindow(CriKey *plugin)
 	this->plugin = plugin;
 	this->color_button = 0;
 	this->color_picker = 0;
-        this->title_x = 0;    this->point_x = 0;
-        this->title_y = 0;    this->point_y = 0;
+	this->title_x = 0;    this->point_x = 0;
+	this->title_y = 0;    this->point_y = 0;
 	this->new_point = 0;  this->del_point = 0;
 	this->point_up = 0;   this->point_dn = 0;
 	this->drag = 0;       this->dragging = 0;
@@ -225,7 +226,13 @@ void CriKeyWindow::create_objects()
 	x1 += del_point->get_w() + margin;
 	add_subwindow(point_dn = new CriKeyPointDn(this, x1, y));
 	y += point_y->get_h() + margin + 10;
+
 	add_subwindow(drag = new CriKeyDrag(this, x, y));
+	if( plugin->config.drag ) {
+		if( !grab(plugin->server->mwindow->cwindow->gui) )
+			eprintf("drag enabled, but compositor already grabbed\n");
+	}
+
 	x1 = x + drag->get_w() + margin + 20;
 	add_subwindow(cur_point = new CriKeyCurPoint(this, plugin, x1, y+3));
 	cur_point->update(plugin->config.selected);
@@ -233,9 +240,6 @@ void CriKeyWindow::create_objects()
 	add_subwindow(points = new CriKeyPoints(this, plugin, x, y));
 	points->update(plugin->config.selected);
 
-        if( plugin->config.drag )
-                grab(plugin->server->mwindow->cwindow->gui);
-
 	show_window(1);
 }
 
@@ -359,7 +363,7 @@ int CriKeyWindow::grab_event(XEvent *event)
 
 void CriKeyWindow::done_event(int result)
 {
-        ungrab(client->server->mwindow->cwindow->gui);
+	ungrab(client->server->mwindow->cwindow->gui);
 	if( color_picker ) color_picker->close_window();
 }
 
@@ -582,15 +586,19 @@ CriKeyDrag::CriKeyDrag(CriKeyWindow *gui, int x, int y)
 }
 int CriKeyDrag::handle_event()
 {
-        int value = get_value();
-        gui->plugin->config.drag = value;
 	CWindowGUI *cwindow_gui = gui->plugin->server->mwindow->cwindow->gui;
-        if( value )
-                gui->grab(cwindow_gui);
-        else
-                gui->ungrab(cwindow_gui);
-        gui->plugin->send_configure_change();
-        return 1;
+	int value = get_value();
+	if( value ) {
+		if( !gui->grab(cwindow_gui) ) {
+			update(value = 0);
+			flicker(10,50);
+		}
+	}
+	else
+		gui->ungrab(cwindow_gui);
+	gui->plugin->config.drag = value;
+	gui->plugin->send_configure_change();
+	return 1;
 }
 
 CriKeyNewPoint::CriKeyNewPoint(CriKeyWindow *gui, CriKey *plugin, int x, int y)
diff --git a/cinelerra-5.1/plugins/titler/titlerwindow.C b/cinelerra-5.1/plugins/titler/titlerwindow.C
index f52d3f21..9bd8cfe7 100644
--- a/cinelerra-5.1/plugins/titler/titlerwindow.C
+++ b/cinelerra-5.1/plugins/titler/titlerwindow.C
@@ -32,7 +32,9 @@
 #include "edlsession.h"
 #include "keys.h"
 #include "language.h"
+#include "mainerror.h"
 #include "mwindow.h"
+#include "mwindowgui.h"
 #include "plugin.h"
 #include "pluginserver.h"
 #include "theme.h"
@@ -255,10 +257,13 @@ void TitleWindow::create_objects()
 	int w1 = italic->get_w();
 	add_tool(bold = new TitleBold(client, this, x, y + 50));
 	if( bold->get_w() > w1 ) w1 = bold->get_w();
+
 	add_tool(drag = new TitleDrag(client, this, x, y + 80));
 	if( drag->get_w() > w1 ) w1 = drag->get_w();
-	if( client->config.drag )
-		grab(client->server->mwindow->cwindow->gui);
+	if( client->config.drag ) {
+		if( !grab(client->server->mwindow->cwindow->gui) )
+			eprintf("drag enabled, but compositor already grabbed\n");
+	}
 
 	x += w1 + margin;
 	add_tool(justify_title = new BC_Title(x, y, _("Justify:")));
@@ -1086,11 +1091,11 @@ int TitleText::handle_event()
 	if( text_len >= avail ) { // back off last utf8 char
 		char text[2*sizeof(client->config.wtext)];
 		strcpy(text, get_text());
-                text_len = avail;
-                while( text_len > 0 && (text[text_len-1] & 0xc0) == 0x80 )
-                        text[--text_len] = 0;
-                if( text_len > 0 )
-                        text[--text_len] = 0;
+		text_len = avail;
+		while( text_len > 0 && (text[text_len-1] & 0xc0) == 0x80 )
+			text[--text_len] = 0;
+		if( text_len > 0 )
+			text[--text_len] = 0;
 		update(text);
 	}
 	int len =  sizeof(client->config.wtext) / sizeof(wchar_t);
@@ -1379,11 +1384,16 @@ TitleDrag::TitleDrag(TitleMain *client, TitleWindow *window, int x, int y)
 int TitleDrag::handle_event()
 {
 	int value = get_value();
-	client->config.drag = value;
-	if( value )
-		window->grab(client->server->mwindow->cwindow->gui);
+	CWindowGUI *cwindow_gui = client->server->mwindow->cwindow->gui;
+	if( value ) {
+		if( !window->grab(cwindow_gui) ) {
+			update(value = 0);
+			flicker(10,50);
+		}
+	}
 	else
-		window->ungrab(client->server->mwindow->cwindow->gui);
+		window->ungrab(cwindow_gui);
+	client->config.drag = value;
 	client->send_configure_change();
 	return 1;
 }
@@ -1665,13 +1675,12 @@ void TitlePngPopup::handle_done_event(int result)
 
 BC_Window *TitlePngPopup::new_gui()
 {
-        BC_DisplayInfo display_info;
-        int x = display_info.get_abs_cursor_x();
-        int y = display_info.get_abs_cursor_y();
+	MWindow *mwindow = client->server->mwindow;
+	int x, y;  mwindow->gui->get_abs_cursor_xy(x, y);
 
-	BC_Window *gui = new BrowseButtonWindow(client->server->mwindow->theme,
+	BC_Window *gui = new BrowseButtonWindow(mwindow->theme,
 		x-25, y-100, window, "", _("Png file"), _("Png path"), 0);
-        gui->create_objects();
+	gui->create_objects();
 	return gui;
 }