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PhysicalDisplay: calculate ppi

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This commit is contained in:
李通洲
2023-08-09 16:18:57 +08:00
parent 6c156ebba4
commit 4b57e4261e
2 changed files with 7 additions and 4 deletions
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src/modules/physicaldisplay/physicaldisplay.c
+5 -3
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@@ -7,7 +7,7 @@
#include <math.h>
#define FF_PHYSICALDISPLAY_DISPLAY_NAME "Physical Display"
#define FF_PHYSICALDISPLAY_NUM_FORMAT_ARGS 6
#define FF_PHYSICALDISPLAY_NUM_FORMAT_ARGS 7
void ffPrintPhysicalDisplay(FFPhysicalDisplayOptions* options)
{
@@ -32,6 +32,7 @@ void ffPrintPhysicalDisplay(FFPhysicalDisplayOptions* options)
FF_LIST_FOR_EACH(FFPhysicalDisplayResult, display, result)
{
double inch = sqrt(display->physicalWidth * display->physicalWidth + display->physicalHeight * display->physicalHeight) / 25.4;
double ppi = sqrt(display->width * display->width + display->height * display->height) / inch;
if(options->moduleArgs.outputFormat.length == 0)
{
@@ -48,9 +49,9 @@ void ffPrintPhysicalDisplay(FFPhysicalDisplayOptions* options)
}
ffPrintLogoAndKey(key.chars, 0, NULL, &options->moduleArgs.keyColor);
printf("%upx x %upx", display->width, display->height);
printf("%ux%u px", display->width, display->height);
if (inch > 0)
printf(" - %umm x %umm (%.2f inches)\n", display->physicalWidth, display->physicalHeight, inch);
printf(" - %ux%u mm (%.2f inches, %.2f ppi)\n", display->physicalWidth, display->physicalHeight, inch, ppi);
else
putchar('\n');
}
@@ -63,6 +64,7 @@ void ffPrintPhysicalDisplay(FFPhysicalDisplayOptions* options)
{FF_FORMAT_ARG_TYPE_UINT, &display->physicalWidth},
{FF_FORMAT_ARG_TYPE_UINT, &display->physicalHeight},
{FF_FORMAT_ARG_TYPE_DOUBLE, &inch},
{FF_FORMAT_ARG_TYPE_DOUBLE, &ppi},
});
}