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Merge pull request #103635 from BlueCube3310/rgb565-fix

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Fix Image format RGB565 conversion and rendering
This commit is contained in:
Thaddeus Crews
2025-08-06 12:01:17 -05:00
parent ce330e61a2 638c6a5659
commit 395b0f0a3d
4 changed files with 6 additions and 45 deletions
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8
core/io/image.cpp
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@@ -3200,9 +3200,9 @@ Color Image::_get_color_at_ofs(const uint8_t *ptr, uint32_t ofs) const {
}
case FORMAT_RGB565: {
uint16_t u = ((uint16_t *)ptr)[ofs];
float r = (u & 0x1F) / 31.0;
float r = ((u >> 11) & 0x1F) / 31.0;
float g = ((u >> 5) & 0x3F) / 63.0;
float b = ((u >> 11) & 0x1F) / 31.0;
float b = (u & 0x1F) / 31.0;
return Color(r, g, b, 1.0);
}
case FORMAT_RF: {
@@ -3299,9 +3299,9 @@ void Image::_set_color_at_ofs(uint8_t *ptr, uint32_t ofs, const Color &p_color)
case FORMAT_RGB565: {
uint16_t rgba = 0;
rgba = uint16_t(CLAMP(p_color.r * 31.0, 0, 31));
rgba = uint16_t(CLAMP(p_color.r * 31.0, 0, 31)) << 11;
rgba |= uint16_t(CLAMP(p_color.g * 63.0, 0, 63)) << 5;
rgba |= uint16_t(CLAMP(p_color.b * 31.0, 0, 31)) << 11;
rgba |= uint16_t(CLAMP(p_color.b * 31.0, 0, 31));
((uint16_t *)ptr)[ofs] = rgba;
} break;