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From: Simon McVittie <smcv@collabora.com>
Date: Mon, 23 Sep 2019 15:37:05 +0100
Subject: showimage: Add -save and -quit options
This allows showimage to be used as a non-interactive smoke-test to
check that the SDL_image library can be linked against successfully.
Signed-off-by: Simon McVittie <smcv@collabora.com>
---
showimage.c | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/showimage.c b/showimage.c
index 6f29d7d..20601b6 100644
--- a/showimage.c
+++ b/showimage.c
@@ -77,11 +77,13 @@ int main(int argc, char *argv[])
{
Uint32 flags;
SDL_Surface *screen, *image;
- int i, depth, done;
+ int i, depth;
+ int done = 0;
SDL_Event event;
#if 0
SDL_RWops* rw_ops;
#endif
+ const char *saveFile = NULL;
/* Check command line usage */
if ( ! argv[1] ) {
@@ -102,6 +104,15 @@ int main(int argc, char *argv[])
flags |= SDL_FULLSCREEN;
continue;
}
+ if ( SDL_strcmp(argv[i], "-quit") == 0 ) {
+ done = 1;
+ continue;
+ }
+ if ( SDL_strcmp(argv[i], "-save") == 0 && argv[i+1] ) {
+ ++i;
+ saveFile = argv[i];
+ continue;
+ }
#if 0
rw_ops = SDL_RWFromFile(argv[1], "r");
@@ -125,6 +136,15 @@ int main(int argc, char *argv[])
argv[i], SDL_GetError());
continue;
}
+
+ if ( saveFile ) {
+ if ( SDL_SaveBMP(image, saveFile) == 0 ) {
+ fprintf(stderr, "Saved a copy of %s to %s\n", argv[i], saveFile);
+ } else {
+ fprintf(stderr, "Couldn't save a copy of %s to %s: %s\n", argv[i], saveFile, SDL_GetError());
+ }
+ }
+
SDL_WM_SetCaption(argv[i], "showimage");
/* Create a display for the image */
@@ -164,7 +184,6 @@ int main(int argc, char *argv[])
SDL_BlitSurface(image, NULL, screen, NULL);
SDL_UpdateRect(screen, 0, 0, 0, 0);
- done = 0;
while ( ! done ) {
if ( SDL_PollEvent(&event) ) {
switch (event.type) {
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