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alleg-main
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From: Frédéric D. <fd...@fr...> - 2012-07-13 13:33:14
|
hello,
i begin with allegro 5 and it is the most beautifull library i know : like
nithrill in the mines of Moria...
I use allegro 5.0.7 and i meet a problem with playing in FULLLSCREEN different
kinds of drawings : the display is blurred a little like a very old TV and
whatever the resolution. I link with allegro-5.0.7-monolith-mt-debug and
allegro-5.0.7-monolith-mt
i work with cobeblock and Mingw32, windows 7, Dell XPS15 with a NVIDIA GeForce
GT 420M video card.
May be i do some thing wrong ? here is the code i test :
/*******************************************************************/
#include <allegro5/allegro.h>
#include <allegro5/allegro_native_dialog.h>
#include <allegro5/allegro_primitives.h>
void erreur(const char*txt)
{
al_show_native_message_box( NULL, "Erreur", txt ,NULL, NULL, 0);
exit(EXIT_FAILURE);
}
int main()
{
ALLEGRO_DISPLAY*display;
ALLEGRO_KEYBOARD_STATE key;
ALLEGRO_DISPLAY_MODE mode;
if(!al_init())
erreur("initialisation");
if (!al_init_primitives_addon())
erreur("init primitives");
if(!al_install_keyboard())
erreur("install keyboard");
// to have destop résolution
al_get_display_mode(al_get_num_display_modes()-1, &mode);
// THE FULLSCREEN DOESN'T WORK PROPERLY
al_set_new_display_flags(ALLEGRO_FULLSCREEN);
display=al_create_display(mode.width,mode.height);
if (!display)
erreur("create_display");
int scrx=al_get_display_width(display);
int scry=al_get_display_height(display);
do{
al_get_keyboard_state(&key);
int x1=rand()%scrx;
int y1=rand()%scry;
int x2=rand()%scrx;
int y2=rand()%scry;
ALLEGRO_COLOR color =
al_map_rgba(rand()%255,rand()%255,rand()%255,rand()%255);
float thickness = rand()%10 - 5;
if (al_key_down(&key,ALLEGRO_KEY_F1))
al_draw_line(x1, y1, x2, y2, color, thickness);
al_flip_display();
}while (!al_key_down(&key,ALLEGRO_KEY_ESCAPE));
al_destroy_display(display);
}
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From: Elias P. <in...@al...> - 2012-07-13 15:14:21
|
On Fri, 13 Jul 2012 15:33:01 +0200 Frédéric Drouillon <fd...@fr...> wrote: > hello, > > i begin with allegro 5 and it is the most beautifull library i know : > like nithrill in the mines of Moria... > > I use allegro 5.0.7 and i meet a problem with playing in FULLLSCREEN > different kinds of drawings : the display is blurred a little like a > very old TV and whatever the resolution. I link with > allegro-5.0.7-monolith-mt-debug and allegro-5.0.7-monolith-mt > > i work with cobeblock and Mingw32, windows 7, Dell XPS15 with a > NVIDIA GeForce GT 420M video card. > > May be i do some thing wrong ? here is the code i test : > ... > > // to have destop résolution > al_get_display_mode(al_get_num_display_modes()-1, &mode); > I don't think that does what you think it does. The display modes are in no particular order. You can use al_get_monitor_info to get the desktop size though, or use ALLEGRO_FULLSCREEN_WINDOW to get a fullscreen mode as big as the desktop. |
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From: Neil R. <no...@co...> - 2012-07-18 13:23:02
|
On 13/07/2012 9:33 AM, Frédéric Drouillon wrote:
> hello,
>
> i begin with allegro 5 and it is the most beautifull library i know : like
> nithrill in the mines of Moria...
>
> I use allegro 5.0.7 and i meet a problem with playing in FULLLSCREEN different
> kinds of drawings : the display is blurred a little like a very old TV and
> whatever the resolution. I link with allegro-5.0.7-monolith-mt-debug and
> allegro-5.0.7-monolith-mt
>
> i work with cobeblock and Mingw32, windows 7, Dell XPS15 with a NVIDIA GeForce
> GT 420M video card.
>
> May be i do some thing wrong ? here is the code i test :
>
> /*******************************************************************/
> #include <allegro5/allegro.h>
> #include <allegro5/allegro_native_dialog.h>
> #include <allegro5/allegro_primitives.h>
>
> void erreur(const char*txt)
> {
> al_show_native_message_box( NULL, "Erreur", txt ,NULL, NULL, 0);
> exit(EXIT_FAILURE);
> }
>
> int main()
> {
> ALLEGRO_DISPLAY*display;
> ALLEGRO_KEYBOARD_STATE key;
> ALLEGRO_DISPLAY_MODE mode;
>
> if(!al_init())
> erreur("initialisation");
>
> if (!al_init_primitives_addon())
> erreur("init primitives");
>
> if(!al_install_keyboard())
> erreur("install keyboard");
>
> // to have destop résolution
> al_get_display_mode(al_get_num_display_modes()-1, &mode);
>
> // THE FULLSCREEN DOESN'T WORK PROPERLY
> al_set_new_display_flags(ALLEGRO_FULLSCREEN);
>
> display=al_create_display(mode.width,mode.height);
> if (!display)
> erreur("create_display");
> int scrx=al_get_display_width(display);
> int scry=al_get_display_height(display);
>
>
> do{
>
> al_get_keyboard_state(&key);
>
> int x1=rand()%scrx;
> int y1=rand()%scry;
> int x2=rand()%scrx;
> int y2=rand()%scry;
>
> ALLEGRO_COLOR color =
> al_map_rgba(rand()%255,rand()%255,rand()%255,rand()%255);
> float thickness = rand()%10 - 5;
>
>
> if (al_key_down(&key,ALLEGRO_KEY_F1))
> al_draw_line(x1, y1, x2, y2, color, thickness);
>
> al_flip_display();
>
>
> }while (!al_key_down(&key,ALLEGRO_KEY_ESCAPE));
>
> al_destroy_display(display);
> }
>
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
I recommend using ALLEGRO_FULLSCREEN_WINDOW which will use the person's
desktop resolution.
There is a bug in Allegro 5.0.7 where there is lag in
ALLEGRO_FULLSCREEN, someone identified what was the likely cause of it
on allegro.cc in a topic I started.
Trent Gamblin stated: "I think the latest release has a bug in d3d where
the reference driver gets used as a fallback, which is extremely slow.
It is fixed in svn."
Since switching to ALLEGRO_FULLSCREEN_WINDOW and adding in the following
function to set up translations it works fine. Plus a fullscreen window
has the added benefit of having faster ALT+TABS and such.
a5_scale_screen.c:
*
// Scale Screen:
// Sets up transforms in order to fit any resolution
// onto an ALLEGRO_FULLSCREEN_WINDOW.
//
// (Special thanks to Matthew Leverton for help with this!)
#include <allegro5/allegro.h>
// usage: a5_scale_screen(BUFFER_WIDTH, BUFFER_HEIGHT, display_width,
display_height);
void a5_scale_screen(int bw, int bh, int dw, int dh)
{
ALLEGRO_TRANSFORM t;
// Calculate the horizontal and vertial aspect ratios
const float HAR = dw/(float)bw;
const float VAR = dh/(float)bh;
// The aspect ratio, x-offset and y-offset (in pixels)
float ar, ox, oy;
if (bw == dw && bh == dh)
{
// 1:1, just reset everything
al_identity_transform(&t);
al_use_transform(&t);
al_set_clipping_rectangle(0, 0, bw, bh);
}
else
{
// Choose the smaller aspect ratio
if (HAR < VAR)
{
// horizontal bars on the top and bottom
ar = HAR;
ox = 0;
oy = (dh - (ar * bh)) / 2.0;
}
else
{
// vertical bars on the left and right
ar = VAR;
ox = (dw - (ar * bw)) / 2.0;
oy = 0;
}
// set up the transformation to scale and translate
al_build_transform(&t, ox, oy, ar, ar, 0);
al_use_transform(&t);
// make sure nothing is drawn into the black bars
al_set_clipping_rectangle(ox, oy, ar * bw, ar * bh);
}
}*
And the header I use for it:
a5_scale_screen.h:
*#ifndef _a5_scale_screen_h_
#define _a5_scale_screen_h_
// usage: a5_scale_screen(BUFFER_WIDTH, BUFFER_HEIGHT, display_width,
display_height);
void a5_scale_screen(int bw, int bh, int dw, int dh);
#endif //_scale_screen_h_*
You use this with a fullscreen window to set up whatever resolution you
wish inside that window and it will look and act just like a fullscreen
mode.
I also used the following code as well after using the above function:
*al_set_new_bitmap_flags(ALLEGRO_MAG_LINEAR | ALLEGRO_VIDEO_BITMAP);
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA);
al_set_new_display_option(ALLEGRO_SAMPLE_BUFFERS, 1, ALLEGRO_SUGGEST);
al_set_new_display_option(ALLEGRO_SAMPLES, 4, ALLEGRO_SUGGEST);
*Hope this helps.
|
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From: Frédéric D. <fd...@fr...> - 2012-07-21 09:01:21
|
yes ! i shall use it, thank you very much.
Le 18/07/2012 15:22, Neil Roy a écrit :
> On 13/07/2012 9:33 AM, Frédéric Drouillon wrote:
>> hello,
>>
>> i begin with allegro 5 and it is the most beautifull library i know : like
>> nithrill in the mines of Moria...
>>
>> I use allegro 5.0.7 and i meet a problem with playing in FULLLSCREEN different
>> kinds of drawings : the display is blurred a little like a very old TV and
>> whatever the resolution. I link with allegro-5.0.7-monolith-mt-debug and
>> allegro-5.0.7-monolith-mt
>>
>> i work with cobeblock and Mingw32, windows 7, Dell XPS15 with a NVIDIA GeForce
>> GT 420M video card.
>>
>> May be i do some thing wrong ? here is the code i test :
>>
>> /*******************************************************************/
>> #include <allegro5/allegro.h>
>> #include <allegro5/allegro_native_dialog.h>
>> #include <allegro5/allegro_primitives.h>
>>
>> void erreur(const char*txt)
>> {
>> al_show_native_message_box( NULL, "Erreur", txt ,NULL, NULL, 0);
>> exit(EXIT_FAILURE);
>> }
>>
>> int main()
>> {
>> ALLEGRO_DISPLAY*display;
>> ALLEGRO_KEYBOARD_STATE key;
>> ALLEGRO_DISPLAY_MODE mode;
>>
>> if(!al_init())
>> erreur("initialisation");
>>
>> if (!al_init_primitives_addon())
>> erreur("init primitives");
>>
>> if(!al_install_keyboard())
>> erreur("install keyboard");
>>
>> // to have destop résolution
>> al_get_display_mode(al_get_num_display_modes()-1, &mode);
>>
>> // THE FULLSCREEN DOESN'T WORK PROPERLY
>> al_set_new_display_flags(ALLEGRO_FULLSCREEN);
>>
>> display=al_create_display(mode.width,mode.height);
>> if (!display)
>> erreur("create_display");
>> int scrx=al_get_display_width(display);
>> int scry=al_get_display_height(display);
>>
>>
>> do{
>>
>> al_get_keyboard_state(&key);
>>
>> int x1=rand()%scrx;
>> int y1=rand()%scry;
>> int x2=rand()%scrx;
>> int y2=rand()%scry;
>>
>> ALLEGRO_COLOR color =
>> al_map_rgba(rand()%255,rand()%255,rand()%255,rand()%255);
>> float thickness = rand()%10 - 5;
>>
>>
>> if (al_key_down(&key,ALLEGRO_KEY_F1))
>> al_draw_line(x1, y1, x2, y2, color, thickness);
>>
>> al_flip_display();
>>
>>
>> }while (!al_key_down(&key,ALLEGRO_KEY_ESCAPE));
>>
>> al_destroy_display(display);
>> }
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Live Security Virtual Conference
>> Exclusive live event will cover all the ways today's security and
>> threat landscape has changed and how IT managers can respond. Discussions
>> will include endpoint security, mobile security and the latest in malware
>> threats.http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>
> I recommend using ALLEGRO_FULLSCREEN_WINDOW which will use the person's
> desktop resolution.
>
> There is a bug in Allegro 5.0.7 where there is lag in ALLEGRO_FULLSCREEN,
> someone identified what was the likely cause of it on allegro.cc in a topic I
> started.
>
> Trent Gamblin stated: "I think the latest release has a bug in d3d where the
> reference driver gets used as a fallback, which is extremely slow. It is fixed
> in svn."
>
> Since switching to ALLEGRO_FULLSCREEN_WINDOW and adding in the following
> function to set up translations it works fine. Plus a fullscreen window has
> the added benefit of having faster ALT+TABS and such.
>
> a5_scale_screen.c:
> *
> // Scale Screen:
> // Sets up transforms in order to fit any resolution
> // onto an ALLEGRO_FULLSCREEN_WINDOW.
> //
> // (Special thanks to Matthew Leverton for help with this!)
>
> #include <allegro5/allegro.h>
>
> // usage: a5_scale_screen(BUFFER_WIDTH, BUFFER_HEIGHT, display_width,
> display_height);
> void a5_scale_screen(int bw, int bh, int dw, int dh)
> {
> ALLEGRO_TRANSFORM t;
>
> // Calculate the horizontal and vertial aspect ratios
> const float HAR = dw/(float)bw;
> const float VAR = dh/(float)bh;
>
> // The aspect ratio, x-offset and y-offset (in pixels)
> float ar, ox, oy;
>
>
> if (bw == dw && bh == dh)
> {
> // 1:1, just reset everything
> al_identity_transform(&t);
> al_use_transform(&t);
> al_set_clipping_rectangle(0, 0, bw, bh);
> }
> else
> {
> // Choose the smaller aspect ratio
> if (HAR < VAR)
> {
> // horizontal bars on the top and bottom
> ar = HAR;
> ox = 0;
> oy = (dh - (ar * bh)) / 2.0;
> }
> else
> {
> // vertical bars on the left and right
> ar = VAR;
> ox = (dw - (ar * bw)) / 2.0;
> oy = 0;
> }
>
> // set up the transformation to scale and translate
> al_build_transform(&t, ox, oy, ar, ar, 0);
> al_use_transform(&t);
>
> // make sure nothing is drawn into the black bars
> al_set_clipping_rectangle(ox, oy, ar * bw, ar * bh);
> }
> }*
>
> And the header I use for it:
>
> a5_scale_screen.h:
>
> *#ifndef _a5_scale_screen_h_
> #define _a5_scale_screen_h_
>
> // usage: a5_scale_screen(BUFFER_WIDTH, BUFFER_HEIGHT, display_width,
> display_height);
> void a5_scale_screen(int bw, int bh, int dw, int dh);
>
> #endif //_scale_screen_h_*
>
> You use this with a fullscreen window to set up whatever resolution you wish
> inside that window and it will look and act just like a fullscreen mode.
>
> I also used the following code as well after using the above function:
>
> *al_set_new_bitmap_flags(ALLEGRO_MAG_LINEAR | ALLEGRO_VIDEO_BITMAP);
> al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA);
> al_set_new_display_option(ALLEGRO_SAMPLE_BUFFERS, 1, ALLEGRO_SUGGEST);
> al_set_new_display_option(ALLEGRO_SAMPLES, 4, ALLEGRO_SUGGEST);
>
>
> *Hope this helps.
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>
>
|
|
From: Oscar (.t. T. <ter...@gm...> - 2012-07-21 09:31:41
|
Nice code
2012/7/18 Neil Roy <no...@co...>
> On 13/07/2012 9:33 AM, Frédéric Drouillon wrote:
>
> hello,
>
> i begin with allegro 5 and it is the most beautifull library i know : like
> nithrill in the mines of Moria...
>
> I use allegro 5.0.7 and i meet a problem with playing in FULLLSCREEN different
> kinds of drawings : the display is blurred a little like a very old TV and
> whatever the resolution. I link with allegro-5.0.7-monolith-mt-debug and
> allegro-5.0.7-monolith-mt
>
> i work with cobeblock and Mingw32, windows 7, Dell XPS15 with a NVIDIA GeForce
> GT 420M video card.
>
> May be i do some thing wrong ? here is the code i test :
>
> /*******************************************************************/
> #include <allegro5/allegro.h>
> #include <allegro5/allegro_native_dialog.h>
> #include <allegro5/allegro_primitives.h>
>
> void erreur(const char*txt)
> {
> al_show_native_message_box( NULL, "Erreur", txt ,NULL, NULL, 0);
> exit(EXIT_FAILURE);
> }
>
> int main()
> {
> ALLEGRO_DISPLAY*display;
> ALLEGRO_KEYBOARD_STATE key;
> ALLEGRO_DISPLAY_MODE mode;
>
> if(!al_init())
> erreur("initialisation");
>
> if (!al_init_primitives_addon())
> erreur("init primitives");
>
> if(!al_install_keyboard())
> erreur("install keyboard");
>
> // to have destop résolution
> al_get_display_mode(al_get_num_display_modes()-1, &mode);
>
> // THE FULLSCREEN DOESN'T WORK PROPERLY
> al_set_new_display_flags(ALLEGRO_FULLSCREEN);
>
> display=al_create_display(mode.width,mode.height);
> if (!display)
> erreur("create_display");
> int scrx=al_get_display_width(display);
> int scry=al_get_display_height(display);
>
>
> do{
>
> al_get_keyboard_state(&key);
>
> int x1=rand()%scrx;
> int y1=rand()%scry;
> int x2=rand()%scrx;
> int y2=rand()%scry;
>
> ALLEGRO_COLOR color =
> al_map_rgba(rand()%255,rand()%255,rand()%255,rand()%255);
> float thickness = rand()%10 - 5;
>
>
> if (al_key_down(&key,ALLEGRO_KEY_F1))
> al_draw_line(x1, y1, x2, y2, color, thickness);
>
> al_flip_display();
>
>
> }while (!al_key_down(&key,ALLEGRO_KEY_ESCAPE));
>
> al_destroy_display(display);
> }
>
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>
>
> I recommend using ALLEGRO_FULLSCREEN_WINDOW which will use the person's
> desktop resolution.
>
> There is a bug in Allegro 5.0.7 where there is lag in ALLEGRO_FULLSCREEN,
> someone identified what was the likely cause of it on allegro.cc in a topic
> I started.
>
> Trent Gamblin stated: "I think the latest release has a bug in d3d where
> the reference driver gets used as a fallback, which is extremely slow. It
> is fixed in svn."
>
> Since switching to ALLEGRO_FULLSCREEN_WINDOW and adding in the following
> function to set up translations it works fine. Plus a fullscreen window
> has the added benefit of having faster ALT+TABS and such.
>
> a5_scale_screen.c:
> *
> // Scale Screen:
> // Sets up transforms in order to fit any resolution
> // onto an ALLEGRO_FULLSCREEN_WINDOW.
> //
> // (Special thanks to Matthew Leverton for help with this!)
>
> #include <allegro5/allegro.h>
>
> // usage: a5_scale_screen(BUFFER_WIDTH, BUFFER_HEIGHT, display_width,
> display_height);
> void a5_scale_screen(int bw, int bh, int dw, int dh)
> {
> ALLEGRO_TRANSFORM t;
>
> // Calculate the horizontal and vertial aspect ratios
> const float HAR = dw/(float)bw;
> const float VAR = dh/(float)bh;
>
> // The aspect ratio, x-offset and y-offset (in pixels)
> float ar, ox, oy;
>
>
> if (bw == dw && bh == dh)
> {
> // 1:1, just reset everything
> al_identity_transform(&t);
> al_use_transform(&t);
> al_set_clipping_rectangle(0, 0, bw, bh);
> }
> else
> {
> // Choose the smaller aspect ratio
> if (HAR < VAR)
> {
> // horizontal bars on the top and bottom
> ar = HAR;
> ox = 0;
> oy = (dh - (ar * bh)) / 2.0;
> }
> else
> {
> // vertical bars on the left and right
> ar = VAR;
> ox = (dw - (ar * bw)) / 2.0;
> oy = 0;
> }
>
> // set up the transformation to scale and translate
> al_build_transform(&t, ox, oy, ar, ar, 0);
> al_use_transform(&t);
>
> // make sure nothing is drawn into the black bars
> al_set_clipping_rectangle(ox, oy, ar * bw, ar * bh);
> }
> }*
>
> And the header I use for it:
>
> a5_scale_screen.h:
>
> *#ifndef _a5_scale_screen_h_
> #define _a5_scale_screen_h_
>
> // usage: a5_scale_screen(BUFFER_WIDTH, BUFFER_HEIGHT, display_width,
> display_height);
> void a5_scale_screen(int bw, int bh, int dw, int dh);
>
> #endif //_scale_screen_h_*
>
> You use this with a fullscreen window to set up whatever resolution you
> wish inside that window and it will look and act just like a fullscreen
> mode.
>
> I also used the following code as well after using the above function:
>
> *al_set_new_bitmap_flags(ALLEGRO_MAG_LINEAR | ALLEGRO_VIDEO_BITMAP);
> al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA);
> al_set_new_display_option(ALLEGRO_SAMPLE_BUFFERS, 1, ALLEGRO_SUGGEST);
> al_set_new_display_option(ALLEGRO_SAMPLES, 4, ALLEGRO_SUGGEST);
>
>
> *Hope this helps.
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> --
> https://lists.sourceforge.net/lists/listinfo/alleg-main
>
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