[repo.or.cz] gfxprim.git branch master updated: 6f9e031b813ac8d42b3faf6011b202d961894677 - Gfxprim

10 Feb 2013

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http://repo.or.cz/w/gfxprim.git/commit/6f9e031b813ac8d42b3faf6011b202d961894...
commit 6f9e031b813ac8d42b3faf6011b202d961894677
Author: Cyril Hrubis metan@ucw.cz
Date:   Sun Feb 10 14:36:37 2013 +0100
backends: Another step towards per backend event queue.
Now the backend has GP_BackendEventsQueued()
    and GP_BackendEventGet() functions and examples
    are chaged to use it.
Also the docs are updated.

diff --git a/demos/bogoman/bogoman.c b/demos/bogoman/bogoman.c
index f6f969b..82189d8 100644
--- a/demos/bogoman/bogoman.c
+++ b/demos/bogoman/bogoman.c
@@ -61,10 +61,10 @@ static struct GP_Backend *backend;
static void event_loop(struct bogoman_map *map)
 {
-	while (GP_EventsQueued()) {
+	while (GP_BackendEventsQueued(backend)) {
    	GP_Event ev;
    	
-		GP_EventGet(&ev);
+		GP_BackendEventGet(backend, &ev);
switch (ev.type) {
    	case GP_EV_KEY:
@@ -142,7 +142,7 @@ int main(int argc, char *argv[])
    	bogoman_render(&render, BOGOMAN_RENDER_DIRTY);
    	GP_BackendFlip(backend);
    
-		usleep(100000);
+		usleep(50000);
    }
return 0;
diff --git a/demos/c_simple/backend_example.c b/demos/c_simple/backend_example.c
index 3d565ef..debba09 100644
--- a/demos/c_simple/backend_example.c
+++ b/demos/c_simple/backend_example.c
@@ -16,7 +16,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  * Boston, MA  02110-1301  USA                                               *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -77,7 +77,7 @@ int main(int argc, char *argv[])
    	/* Read and parse events */
    	GP_Event ev;
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
GP_EventDump(&ev);
    		
diff --git a/demos/c_simple/blittest.c b/demos/c_simple/blittest.c
index 5a80233..1ade1d9 100644
--- a/demos/c_simple/blittest.c
+++ b/demos/c_simple/blittest.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -94,7 +94,7 @@ void event_loop(void)
 {
    GP_Event ev;
-	while (GP_EventGet(&ev)) {
+	while (GP_BackendEventGet(win, &ev)) {
    	GP_EventDump(&ev);
    	
    	switch (ev.type) {
@@ -171,6 +171,9 @@ int main(void)
    black = GP_ColorToContextPixel(GP_COL_BLACK, win->context);
    white = GP_ColorToContextPixel(GP_COL_WHITE, win->context);
+	GP_Fill(win->context, black);
+	GP_BackendFlip(win);
+
    for (;;) {
    	GP_BackendPoll(win);
    	event_loop();
diff --git a/demos/c_simple/fileview.c b/demos/c_simple/fileview.c
index 66c2925..6f36565 100644
--- a/demos/c_simple/fileview.c
+++ b/demos/c_simple/fileview.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -113,7 +113,7 @@ void event_loop(void)
 {
    GP_Event ev;
-	while (GP_EventGet(&ev)) {
+	while (GP_BackendEventGet(backend, &ev)) {
    	switch (ev.type) {
    	case GP_EV_KEY:
    		if (ev.code != GP_EV_KEY_DOWN)
diff --git a/demos/c_simple/fonttest.c b/demos/c_simple/fonttest.c
index b9a5898..bf8a169 100644
--- a/demos/c_simple/fonttest.c
+++ b/demos/c_simple/fonttest.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -175,7 +175,7 @@ void event_loop(void)
 {
    GP_Event ev;
-	while (GP_EventGet(&ev)) {
+	while (GP_BackendEventGet(win, &ev)) {
    	switch (ev.type) {
    	case GP_EV_KEY:
    		if (ev.code != GP_EV_KEY_DOWN)
diff --git a/demos/c_simple/input_example.c b/demos/c_simple/input_example.c
index cb4877b..8eda0f5 100644
--- a/demos/c_simple/input_example.c
+++ b/demos/c_simple/input_example.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -56,10 +56,10 @@ static void event_loop(void)
    for (;;) {
    	GP_BackendWait(backend);
    	
-		while (GP_EventsQueued()) {
+		while (GP_BackendEventsQueued(backend)) {
    		GP_Event ev;
-			GP_EventGet(&ev);
+			GP_BackendEventGet(backend, &ev);
    		GP_EventDump(&ev);
switch (ev.type) {
diff --git a/demos/c_simple/koch.c b/demos/c_simple/koch.c
index 6668cb0..581a978 100644
--- a/demos/c_simple/koch.c
+++ b/demos/c_simple/koch.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -153,7 +153,7 @@ int main(void)
    	
    	GP_BackendPoll(backend);
    	
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
    		GP_EventDump(&ev);
    
    		switch (ev.type) {
diff --git a/demos/c_simple/linetest.c b/demos/c_simple/linetest.c
index 9e7078b..f72d618 100644
--- a/demos/c_simple/linetest.c
+++ b/demos/c_simple/linetest.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -78,7 +78,7 @@ void event_loop(void)
 {
    GP_Event ev;
-	while (GP_EventGet(&ev)) {
+	while (GP_BackendEventGet(win, &ev)) {
    	switch (ev.type) {
    	case GP_EV_KEY:
    		if (ev.code != GP_EV_KEY_DOWN)
diff --git a/demos/c_simple/randomshapetest.c b/demos/c_simple/randomshapetest.c
index 19fcae4..1373ed9 100644
--- a/demos/c_simple/randomshapetest.c
+++ b/demos/c_simple/randomshapetest.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -214,7 +214,7 @@ void event_loop(void)
 {
    GP_Event ev;
-	while (GP_EventGet(&ev)) {
+	while (GP_BackendEventGet(win, &ev)) {
    	switch (ev.type) {
    	case GP_EV_KEY:
    		if (ev.code != GP_EV_KEY_DOWN)
diff --git a/demos/c_simple/shapetest.c b/demos/c_simple/shapetest.c
index a807f5b..02c2bab 100644
--- a/demos/c_simple/shapetest.c
+++ b/demos/c_simple/shapetest.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -337,7 +337,7 @@ void event_loop(void)
GP_Event ev;
-	while (GP_EventGet(&ev)) {
+	while (GP_BackendEventGet(backend, &ev)) {
    	GP_EventDump(&ev);
    
    	shift_pressed = GP_EventGetKey(&ev, GP_KEY_LEFT_SHIFT) ||
diff --git a/demos/c_simple/showimage.c b/demos/c_simple/showimage.c
index 9b1741b..f91bbec 100644
--- a/demos/c_simple/showimage.c
+++ b/demos/c_simple/showimage.c
@@ -16,7 +16,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  * Boston, MA  02110-1301  USA                                               *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -70,7 +70,7 @@ int main(int argc, char *argv[])
    
    	GP_Event ev;
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
    		if (ev.type == GP_EV_KEY && ev.val.val == GP_KEY_Q) {
    			GP_BackendExit(backend);
    			return 0;
diff --git a/demos/c_simple/sin_AA.c b/demos/c_simple/sin_AA.c
index 94b3563..cd44879 100644
--- a/demos/c_simple/sin_AA.c
+++ b/demos/c_simple/sin_AA.c
@@ -105,7 +105,7 @@ int main(void)
    
    	GP_Event ev;
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
    		if (ev.type == GP_EV_KEY && ev.code == GP_EV_KEY_DOWN) {
    			switch (ev.val.val) {
    			case GP_KEY_ESC:
diff --git a/demos/c_simple/textaligntest.c b/demos/c_simple/textaligntest.c
index 0f1b4a3..5d6d53b 100644
--- a/demos/c_simple/textaligntest.c
+++ b/demos/c_simple/textaligntest.c
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -73,7 +73,7 @@ static void event_loop(void)
 {
    GP_Event ev;
-	while (GP_EventGet(&ev)) {
+	while (GP_BackendEventGet(win, &ev)) {
    	switch (ev.type) {
    	case GP_EV_KEY:
    		if (ev.code != GP_EV_KEY_DOWN)
diff --git a/demos/c_simple/v4l2_show.c b/demos/c_simple/v4l2_show.c
index c7f5cbb..4bb5543 100644
--- a/demos/c_simple/v4l2_show.c
+++ b/demos/c_simple/v4l2_show.c
@@ -16,7 +16,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  * Boston, MA  02110-1301  USA                                               *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -129,7 +129,7 @@ int main(int argc, char *argv[])
    	/* Read and parse events */
    	GP_Event ev;
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
    		switch (ev.type) {
    		case GP_EV_KEY:
    			
diff --git a/demos/c_simple/virtual_backend_example.c b/demos/c_simple/virtual_backend_example.c
index 448c72c..0468a14 100644
--- a/demos/c_simple/virtual_backend_example.c
+++ b/demos/c_simple/virtual_backend_example.c
@@ -16,7 +16,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  * Boston, MA  02110-1301  USA                                               *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -148,7 +148,7 @@ int main(int argc, char *argv[])
    	/* Read and parse events */
    	GP_Event ev;
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
GP_EventDump(&ev);
    		
diff --git a/demos/particle/particle_demo.c b/demos/particle/particle_demo.c
index 4143ffe..e977cc6 100644
--- a/demos/particle/particle_demo.c
+++ b/demos/particle/particle_demo.c
@@ -104,7 +104,7 @@ int main(int argc, char *argv[])
    	/* Read and parse events */
    	GP_Event ev;
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
GP_EventDump(&ev);
    		
diff --git a/demos/spiv/spiv.c b/demos/spiv/spiv.c
index f681b1a..23462b7 100644
--- a/demos/spiv/spiv.c
+++ b/demos/spiv/spiv.c
@@ -871,7 +871,7 @@ int main(int argc, char *argv[])
    	/* Read and parse events */
    	GP_Event ev;
-		while (GP_EventGet(&ev)) {
+		while (GP_BackendEventGet(backend, &ev)) {
    		
    		shift_flag = GP_EventGetKey(&ev, GP_KEY_LEFT_SHIFT) ||
    		             GP_EventGetKey(&ev, GP_KEY_RIGHT_SHIFT);
diff --git a/doc/backends.txt b/doc/backends.txt
index 501baca..678f8c7 100644
--- a/doc/backends.txt
+++ b/doc/backends.txt
@@ -330,4 +330,30 @@ multithreaded application where one threads waits for events and others draws
 into the buffer so you can stop the drawing threads before the backend context
 size change.
+[source,c]
+-------------------------------------------------------------------------------
+#include <backends/GP_Backend.h>
+/* or */
+#include <GP.h>
+
+unsigned int GP_BackendEventsQueued(GP_Backend *self);
+-------------------------------------------------------------------------------
+
+Returns number of events queued in backend event queue.
+
+[source,c]
+-------------------------------------------------------------------------------
+#include <backends/GP_Backend.h>
+/* or */
+#include <GP.h>
+
+int GP_BackendEventGet(GP_Backend *self, GP_Event *ev);
+-------------------------------------------------------------------------------
+
+In case there are any events queued, the top event is removed from the queue,
+copied into the event structure that is passed as argument and non-zero is
+returned.
+
+If there are no events queued the call returns immediately returning zero.
+
 TIP: For more information see link:input.html[input events] documentation.
diff --git a/include/backends/GP_Backend.h b/include/backends/GP_Backend.h
index 01bf3c1..900b8d4 100644
--- a/include/backends/GP_Backend.h
+++ b/include/backends/GP_Backend.h
@@ -19,7 +19,7 @@
  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  *                         jiri.bluebear.dluhos@gmail.com                  *
  *                                                                           *
- * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz                       *
+ * Copyright (C) 2009-2013 Cyril Hrubis metan@ucw.cz                       *
  *                                                                           *
  *****************************************************************************/
@@ -228,4 +228,21 @@ int GP_BackendResize(GP_Backend *backend, uint32_t w, uint32_t h);
  */
 int GP_BackendResizeAck(GP_Backend *self);
+/*
+ * Event Queue functions.
+ */
+#include <input/GP_Event.h>
+
+static inline unsigned int GP_BackendEventsQueued(GP_Backend *self)
+{
+	(void) self;
+	return GP_EventsQueued();
+}
+
+static inline int GP_BackendEventGet(GP_Backend *self, GP_Event *ev)
+{
+	(void) self;
+	return GP_EventGet(ev);
+}
+
 #endif /* BACKENDS_GP_BACKEND_H */
diff --git a/include/input/GP_Event.h b/include/input/GP_Event.h
index c985cad..2c99bb2 100644
--- a/include/input/GP_Event.h
+++ b/include/input/GP_Event.h
@@ -31,8 +31,8 @@
*/
-#ifndef GP_EVENT_H
-#define GP_EVENT_H
+#ifndef INPUT_GP_EVENT_H
+#define INPUT_GP_EVENT_H
#include <stdint.h>
 #include <sys/time.h>
@@ -387,4 +387,4 @@ static inline void GP_EventResetKey(struct GP_Event *ev,
    ev->keys_pressed[(key)/8] &= ~(1<<((key)%8));
 }
-#endif /* GP_EVENT_H */
+#endif /* INPUT_GP_EVENT_H */
-----------------------------------------------------------------------
Summary of changes:
 demos/bogoman/bogoman.c                  |    6 +++---
 demos/c_simple/backend_example.c         |    4 ++--
 demos/c_simple/blittest.c                |    7 +++++--
 demos/c_simple/fileview.c                |    4 ++--
 demos/c_simple/fonttest.c                |    4 ++--
 demos/c_simple/input_example.c           |    6 +++---
 demos/c_simple/koch.c                    |    4 ++--
 demos/c_simple/linetest.c                |    4 ++--
 demos/c_simple/randomshapetest.c         |    4 ++--
 demos/c_simple/shapetest.c               |    4 ++--
 demos/c_simple/showimage.c               |    4 ++--
 demos/c_simple/sin_AA.c                  |    2 +-
 demos/c_simple/textaligntest.c           |    4 ++--
 demos/c_simple/v4l2_show.c               |    4 ++--
 demos/c_simple/virtual_backend_example.c |    4 ++--
 demos/particle/particle_demo.c           |    2 +-
 demos/spiv/spiv.c                        |    2 +-
 doc/backends.txt                         |   26 ++++++++++++++++++++++++++
 include/backends/GP_Backend.h            |   19 ++++++++++++++++++-
 include/input/GP_Event.h                 |    6 +++---
 20 files changed, 83 insertions(+), 37 deletions(-)
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