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Merge pull request #107898 from BlueCube3310/image-invis-fix

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Image: Fix `is_invisible` detection for RGBAH and RGBAF
This commit is contained in:
Thaddeus Crews
2025-06-25 15:14:07 -05:00
parent 525628147e e35c80b61c
commit bf9346caad
1 changed files with 6 additions and 6 deletions
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12
core/io/image.cpp
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@@ -2451,22 +2451,22 @@ bool Image::is_invisible() const {
} break; } break;
case FORMAT_RGBAH: { case FORMAT_RGBAH: {
// The alpha mask accounts for the sign bit. // The alpha mask accounts for the sign bit.
const int pixel_count = len / 4; const int pixel_count = len / 8;
const uint16_t *pixeldata = reinterpret_cast<const uint16_t *>(data.ptr()); const uint16_t *pixeldata = reinterpret_cast<const uint16_t *>(data.ptr());
for (int i = 0; i < pixel_count; i += 4) { for (int i = 0; i < pixel_count; i++) {
if ((pixeldata[i + 3] & 0x7FFF) != 0) { if ((pixeldata[i * 4 + 3] & 0x7FFF) != 0) {
return false; return false;
} }
} }
} break; } break;
case FORMAT_RGBAF: { case FORMAT_RGBAF: {
// The alpha mask accounts for the sign bit. // The alpha mask accounts for the sign bit.
const int pixel_count = len / 4; const int pixel_count = len / 16;
const uint32_t *pixeldata = reinterpret_cast<const uint32_t *>(data.ptr()); const uint32_t *pixeldata = reinterpret_cast<const uint32_t *>(data.ptr());
for (int i = 0; i < pixel_count; i += 4) { for (int i = 0; i < pixel_count; i++) {
if ((pixeldata[i + 3] & 0x7FFFFFFF) != 0) { if ((pixeldata[i * 4 + 3] & 0x7FFFFFFF) != 0) {
return false; return false;
} }
} }