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Edid: use screen size in DTD if make sense

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This commit is contained in:
Carter Li
2024-12-06 19:20:06 +08:00
parent 8410a66277
commit d897472572
1 changed files with 19 additions and 2 deletions
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src/util/edidHelper.c
+19 -2
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@@ -65,8 +65,25 @@ bool ffEdidGetName(const uint8_t edid[128], FFstrbuf* name)
void ffEdidGetPhysicalSize(const uint8_t edid[128], uint32_t* width, uint32_t* height)
{
*width = edid[21] * 10;
*height = edid[22] * 10;
// Detailed Timing Descriptors
uint32_t dw = (((uint32_t) edid[68] & 0xF0) << 4) + edid[66];
uint32_t dh = (((uint32_t) edid[68] & 0x0F) << 8) + edid[67];
// Basic Display Parameters
uint32_t bw = edid[21] * 10;
uint32_t bh = edid[22] * 10;
// Some monitors report invalid data in DTD. See #1406
if (abs((int)dw - (int)bw) < 10 && abs((int)dh - (int)bh) < 10)
{
*width = dw;
*height = dh;
}
else
{
*width = bw;
*height = bh;
}
}
void ffEdidGetSerialAndManufactureDate(const uint8_t edid[128], uint32_t* serial, uint16_t* year, uint16_t* week)