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Port pong to dispd.

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This commit is contained in:
Jonas 'Sortie' Termansen 2012-12-15 23:25:20 +01:00
parent 53a254384e
commit b99fd83d9a
1 changed files with 20 additions and 36 deletions
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56
games/pong.cpp
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@ -31,6 +31,8 @@
#include <error.h>
#include <string.h>
#include <dispd.h>
int Init();
void Reset();
void ClearScreen();
@ -48,7 +50,6 @@ const int padsize = 5;
const unsigned goalfreq = 800;
const unsigned collisionfreq = 1200;
int vgafd;
uint16_t frame[width*height];
int ballx;
@ -68,41 +69,9 @@ unsigned p2score;
unsigned time;
unsigned soundleft;
bool FlushVGA()
{
if ( lseek(vgafd, 0, SEEK_SET) < 0)
return false;
return writeall(vgafd, frame, sizeof(frame)) == sizeof(frame);
}
int Init()
{
bool has_vga_mode_set = true;
FILE* modefp = fopen("/dev/video/mode", "r");
if ( modefp )
{
char* mode = NULL;
size_t modesize;
if ( 0 <= getline(&mode, &modesize, modefp) )
{
if ( strcmp(mode, "driver=none\n") != 0 )
has_vga_mode_set = false;
free(mode);
}
fclose(modefp);
}
if ( !has_vga_mode_set )
{
fprintf(stderr, "Sorry, this game only works in VGA mode.\n");
return 1;
}
vgafd = open("/dev/vga", O_RDWR);
if ( vgafd < 0 ) { error(0, errno, "unable to open vga device /dev/vga"); return 1; }
Reset();
return 0;
}
@ -139,8 +108,6 @@ void ClearScreen()
frame[x + y*width] = ' ' | color;
}
}
FlushVGA();
}
void Collision()
@ -267,6 +234,9 @@ int usage(int /*argc*/, char* argv[])
int main(int argc, char* argv[])
{
if ( !dispd_initialize(&argc, &argv) )
error(1, 0, "couldn't initialize dispd library");
int sleepms = 50;
for ( int i = 1; i < argc; i++ )
{
@ -281,13 +251,27 @@ int main(int argc, char* argv[])
int result = Init();
if ( result != 0 ) { return result; }
struct dispd_session* session = dispd_attach_default_session();
if ( !session )
error(1, 0, "couldn't attach to dispd default session");
if ( !dispd_session_setup_game_vga(session) )
error(1, 0, "couldn't setup dispd vga session");
struct dispd_window* window = dispd_create_window_game_vga(session);
if ( !window )
error(1, 0, "couldn't create dispd vga window");
while (true)
{
usleep(sleepms * 1000);
ReadInput();
Update();
UpdateUI();
FlushVGA();
struct dispd_framebuffer* fb = dispd_begin_render(window);
if ( !fb )
error(1, 0, "unable to begin rendering dispd window");
memcpy(dispd_get_framebuffer_data(fb), frame, sizeof(frame));
dispd_finish_render(fb);
if ( /*soundleft < 0*/ false ) { continue; }
if ( soundleft <= 50 )
{