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Port asteroids to dispd.

This commit is contained in:
Jonas 'Sortie' Termansen 2012-12-15 22:15:30 +01:00
parent d00bc41c74
commit 53a254384e
2 changed files with 34 additions and 53 deletions
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4
games/Makefile
View File

@ -18,6 +18,8 @@ conway \
snake \
asteroids \
LIBS:=-ldispd
all: $(BINARIES)
.PHONY: all install uninstall clean
@ -32,7 +34,7 @@ uninstall:
done
%: %.cpp
$(CXX) $(CPPFLAGS) $(CXXFLAGS) $< -o $@
$(CXX) $(CPPFLAGS) $(CXXFLAGS) $< -o $@ $(LIBS)
sh: mxsh
cp $< $@

83
games/asteroids.cpp
View File

@ -1,5 +1,6 @@
#include <sys/keycodes.h>
#include <sys/termmode.h>
#include <stdint.h>
#include <unistd.h>
#include <string.h>
@ -9,12 +10,8 @@
#include <fcntl.h>
#include <errno.h>
#include <error.h>
#include <readparamstring.h>
// This define runs the game without actually setting the video mode and
// checking whether the frame was actually copied to the screen. useful for
// debugging the game since you can't see console output.
//#define HACK_DONT_CHECK_FB
#include <dispd.h>
// TODO: Hacks that should belong in libm or something.
extern "C" float sqrtf(float x)
@ -1047,24 +1044,25 @@ void Render()
obj->Render();
}
}
void FlushBuffer()
void RunFrame(struct dispd_window* window)
{
lseek(fb, 0, SEEK_SET);
if ( writeall(fb, buf, framesize) < framesize )
struct dispd_framebuffer* fb = dispd_begin_render(window);
if ( !fb )
{
#ifndef HACK_DONT_CHECK_FB
error(1, errno, "writing to framebuffer");
#endif
error(0, 0, "unable to begin rendering dispd window");
gamerunning = false;
return;
}
}
void RunFrame()
{
xres = dispd_get_framebuffer_width(fb);
yres = dispd_get_framebuffer_height(fb);
bpp = dispd_get_framebuffer_format(fb);
linesize = dispd_get_framebuffer_pitch(fb) / (bpp / 8);
framesize = dispd_get_framebuffer_pitch(fb) * yres;
buf = (uint32_t*) dispd_get_framebuffer_data(fb);
FetchKeyboardInput();
GameLogic();
Render();
FlushBuffer();
dispd_finish_render(fb);
}
char* GetCurrentVideoMode()
@ -1092,45 +1090,26 @@ void InitGame()
new AsteroidField;
}
int main(int /*argc*/, char* argv[])
int main(int argc, char* argv[])
{
#ifndef HACK_DONT_CHECK_FB
char* vidmode = GetCurrentVideoMode();
if ( !vidmode ) { perror("Cannot detect current video mode"); exit(1); }
char* widthstr = NULL;
char* heightstr = NULL;
if ( !ReadParamString(vidmode, "width", &widthstr, "height", &heightstr, NULL) )
{
error(1, errno, "Can't parse video mode: %s", vidmode);
}
xres = atoi_safe(widthstr); delete[] widthstr; widthstr = NULL;
yres = atoi_safe(heightstr); delete[] heightstr; heightstr = NULL;
if ( !xres || !yres )
{
const char* chvideomode = "chvideomode";
execlp(chvideomode, chvideomode, argv[0], NULL);
perror(chvideomode);
exit(127);
}
#else
xres = 1280;
yres = 720;
#endif
if ( !dispd_initialize(&argc, &argv) )
error(1, 0, "couldn't initialize dispd library");
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_rgba(session) )
error(1, 0, "couldn't setup dispd rgba session");
struct dispd_window* window = dispd_create_window_game_rgba(session);
if ( !window )
error(1, 0, "couldn't create dispd rgba window");
fb = open("/dev/video/fb", O_WRONLY);
#ifndef HACK_DONT_CHECK_FB
if ( fb < 0 ) { error(1, errno, "open: /dev/video/fb"); }
#endif
bpp = sizeof(uint32_t);
linesize = xres;
framesize = yres * linesize * bpp;
buf = new uint32_t[framesize / sizeof(uint32_t)];
InitGame();
gamerunning = true;
for ( framenum = 0; gamerunning; framenum++ )
{
RunFrame();
}
close(fb);
RunFrame(window);
dispd_destroy_window(window);
dispd_detach_session(session);
return 0;
}