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(iOS) Fix dpi, still incomplete

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This commit is contained in:
Jean-André Santoni 2015-04-21 18:58:19 +07:00
parent 17a11463b9
commit 558459fb9b
1 changed files with 11 additions and 2 deletions
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13
gfx/drivers_context/cocoa_gl_ctx.m
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@ -354,6 +354,7 @@ static bool cocoagl_gfx_ctx_get_metrics(void *data, enum display_metric_types ty
float physical_width = display_physical_size.width;
float physical_height = display_physical_size.height;
float scale = screen.backingScaleFactor;
float dpi = (display_width/ physical_width) * 25.4f * scale;
#elif defined(HAVE_COCOATOUCH)
float scale = cocoagl_gfx_ctx_get_native_scale();
CGRect screen_rect = [[UIScreen mainScreen] bounds];
@ -362,6 +363,15 @@ static bool cocoagl_gfx_ctx_get_metrics(void *data, enum display_metric_types ty
float display_height = screen_rect.size.height;
float physical_width = screen_rect.size.width * scale;
float physical_height = screen_rect.size.height * scale;
float dpi = 0;
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
dpi = 132 * scale;
} else if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
dpi = 163 * scale;
} else {
dpi = 160 * scale;
}
#endif
(void)display_height;
@ -375,8 +385,7 @@ static bool cocoagl_gfx_ctx_get_metrics(void *data, enum display_metric_types ty
*value = physical_height;
break;
case DISPLAY_METRIC_DPI:
/* 25.4 mm in an inch. */
*value = (display_width/ physical_width) * 25.4f * scale;
*value = dpi;
break;
case DISPLAY_METRIC_NONE:
default: