fbdev: Render 32 bit on 16 bit fbdev #9
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samueldr
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samueldr
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samueldr
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samueldr
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samueldr
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Feb 11, 2023
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| uint16_t * fbp16 = (uint16_t *)fbp; | ||
| int32_t y; | ||
| int32_t x; | ||
| for(y = act_y1; y <= act_y2; y++) { | ||
| for(x = act_x1; x <= act_x2; x++) { | ||
| location = (x + vinfo.xoffset) + (y + vinfo.yoffset) * finfo.line_length / 2; | ||
| fbp16[location] = (uint16_t)( | ||
| // R, and 3 bits from G | ||
| ((color_p->ch.red & 0xf8) | (color_p->ch.green >> 5)) << 8 | ||
| // 3 bits from G, and B | ||
| | ((color_p->ch.green & 0x1c) << 3) | (color_p->ch.blue >> 3) | ||
| ); | ||
| color_p++; | ||
| } | ||
|
|
||
| color_p += area->x2 - act_x2; | ||
| } | ||
| #else |
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This was tested on
nokia-argonwith the vendor kernel.Mainline correctly handles this within DRM, AFAICT.
Blocked until needed on a system; too cumbersome to keep around without testing.