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add WriteScreenshot (see announcements)

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This was SVN commit r668.
This commit is contained in:
janwas 2004-07-09 02:04:30 +00:00
parent bad0b0629d
commit 5931a06606
1 changed files with 36 additions and 6 deletions
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42
source/main.cpp
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@ -219,11 +219,35 @@ static int set_vmode(int w, int h, int bpp)
}
static void write_screenshot()
static void WriteScreenshot()
{
const size_t size = g_xres * g_yres * 3;
void* img = malloc(size);
glReadPixels(0, 0, g_xres, g_yres, GL_BGR_EXT, GL_UNSIGNED_BYTE, img);
// determine next screenshot number.
//
// current approach: increment number until that file doesn't yet exist.
// this is fairly slow, but it's typically only done once, since the last
// number is cached. binary search shouldn't be necessary.
//
// known bug: after program restart, holes in the number series are
// filled first. example: add 1st and 2nd; [exit] delete 1st; [restart]
// add 3rd -> it gets number 1, not 3.
// could fix via enumerating all files, but it's not worth it ATM.
char fn[VFS_MAX_PATH];
static int next_num = 1;
do
sprintf(fn, "screenshot%04d.png", next_num++);
while(vfs_exists(fn));
const int w = g_xres, h = g_yres;
const int bpp = 24;
const size_t size = w * h * bpp;
void* img = mem_alloc(size);
glReadPixels(0, 0, w, h, GL_RGB, GL_UNSIGNED_BYTE, img);
if(tex_write(fn, w, h, bpp, 0, img) < 0)
debug_warn("WriteScreenshot: tex_write failed");
mem_free(img);
}
@ -251,7 +275,7 @@ static int handler(const SDL_Event* ev)
break;
case SDLK_PRINT:
write_screenshot();
WriteScreenshot();
break;
}
break;
@ -661,6 +685,9 @@ PREVTSC=TSC;
ParseArgs(argc, argv);
//g_xres = 800;
//g_yres = 600;
// GUI is notified in set_vmode, so this must come before that.
#ifndef NO_GUI
new CGUI;
@ -672,6 +699,7 @@ PREVTSC=TSC;
display_startup_error(err_msg);
}
write_sys_info();
if(!oglExtAvail("GL_ARB_multitexture") || !oglExtAvail("GL_ARB_texture_env_combine"))
@ -689,7 +717,8 @@ PREVTSC=TSC;
}
vfs_mount("", "mods/official/", 0);
vfs_mount("", "mods/official", 0);
vfs_mount("screenshots", "screenshots", 0);
#ifdef _MSC_VER
u64 CURTSC=rdtsc();
@ -700,6 +729,7 @@ debug_out(
PREVTSC=CURTSC;
#endif
psInit();
// create renderer