diff options
| -rw-r--r-- | doc/imv.1 | 3 | ||||
| -rw-r--r-- | src/main.c | 20 |
2 files changed, 15 insertions, 8 deletions
@@ -24,6 +24,9 @@ Start in full screen mode .B -a Default to showing images at actual size. .TP +.B -u +Use nearest neighbour resampling. Recommended for pixel art. +.TP .B -h Print help. .SH OPTIONS @@ -36,23 +36,25 @@ struct { int recursive; int actual; int start_at; + int nearest_neighbour; int solid_bg; unsigned char bg_r; unsigned char bg_g; unsigned char bg_b; -} g_options = {0,0,0,0,0,1,0,0,0}; +} g_options = {0,0,0,0,0,0,1,0,0,0}; void print_usage(const char* name) { fprintf(stdout, "imv %s\n" - "Usage: %s [-irfah] [-n NUM] [-b BG] [images...]\n" + "Usage: %s [-irfauh] [-n NUM] [-b BG] [images...]\n" "\n" "Flags:\n" " -i: Read paths from stdin. One path per line.\n" " -r: Recursively search input paths.\n" " -f: Start in fullscreen mode\n" " -a: Default to images' actual size\n" + " -u: Use nearest neighbour resampling.\n" " -h: Print this help\n" "\n" "Options:\n" @@ -104,16 +106,17 @@ void parse_args(int argc, char** argv) char* end; int n; - while((o = getopt(argc, argv, "firahn:b:")) != -1) { + while((o = getopt(argc, argv, "firauhn:b:")) != -1) { switch(o) { case 'f': g_options.fullscreen = 1; break; case 'i': g_options.stdin = 1; fprintf(stderr, "Warning: '-i' is deprecated. Just use '-' instead.\n"); break; - case 'r': g_options.recursive = 1; break; - case 'a': g_options.actual = 1; break; - case 'h': print_usage(name); exit(0); break; + case 'r': g_options.recursive = 1; break; + case 'a': g_options.actual = 1; break; + case 'u': g_options.nearest_neighbour = 1; break; + case 'h': print_usage(name); exit(0); break; case 'n': n = strtol(optarg,&end,0); if(*end != '\0' || n <= 0) { @@ -205,8 +208,9 @@ int main(int argc, char** argv) SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED); - /* Use linear sampling for scaling */ - SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1"); + /* use the appropriate resampling method */ + SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, + g_options.nearest_neighbour ? "0" : "1"); /* construct a chequered background texture */ SDL_Texture *chequered_tex = create_chequered(renderer); |