display_gl_get_property: fixed codec array size

MartinPulec · MartinPulec · commit 9622095d4c32 · 2024-01-22T12:53:14.000+01:00
The source array size was returned, but the codec list is filtered so
the actual number may be lower.
diff --git a/src/video_display/gl.cpp b/src/video_display/gl.cpp
@@ -1917,9 +1917,10 @@ display_gl_get_property(void *state, int property, void *val, size_t *len)
                         }
                         return true;
                 };
-                copy_if(gl_supp_codecs.begin(), gl_supp_codecs.end(),
-                        (codec_t *) val, filter_codecs);
-                *len = sizeof gl_supp_codecs;
+                const codec_t *end =
+                    copy_if(gl_supp_codecs.begin(), gl_supp_codecs.end(),
+                            (codec_t *) val, filter_codecs);
+                *len = (const char *) end - (char *) val;
                 return true;
         }
         case DISPLAY_PROPERTY_RGB_SHIFT:

Original file line number	Diff line number	Diff line change
`@@ -1917,9 +1917,10 @@ display_gl_get_property(void state, int property, void val, size_t *len)`
`1917`	`1917`	`}`
`1918`	`1918`	`return true;`
`1919`	`1919`	`};`
`1920`		`- copy_if(gl_supp_codecs.begin(), gl_supp_codecs.end(),`
`1921`		`- (codec_t *) val, filter_codecs);`
`1922`		`- *len = sizeof gl_supp_codecs;`
	`1920`	`+ const codec_t *end =`
	`1921`	`+ copy_if(gl_supp_codecs.begin(), gl_supp_codecs.end(),`
	`1922`	`+ (codec_t *) val, filter_codecs);`
	`1923`	`+ len = (const char ) end - (char *) val;`
`1923`	`1924`	`return true;`
`1924`	`1925`	`}`
`1925`	`1926`	`case DISPLAY_PROPERTY_RGB_SHIFT:`