No_std support

[b-ncMN]

Does this crate support being used in a program with no_std (such as a kernel)?
I'm wondering because I am trying to search for a crate to help me draw text on a framebuffer provided by a UEFI firmware

[parasyte]

No, unfortunately this crate will not work for your use case. We need a GPU for scaling (at a minimum) and our current GPU layer provides a Vulkan-like interface across all supported backends.

I'm not sure what kind of interface you would expect in a kernel, since presumably you wouldn't need a GPU or high-level interface to it like Vulkan. I suspect the standard VGA interface is what you're looking for? Specifically, this is what I'm thinking of: https://wiki.osdev.org/Drawing_In_a_Linear_Framebuffer and https://wiki.osdev.org/VGA_Resources

If instead you do expect to have a GPU and driver, then pixels could potentially be an option for you. At that point, we would need to make wgpu no_std. But it has been mentioned that they cannot do this: gfx-rs/wgpu#2278 (comment)

Alternatives you might consider:

• vga offers low-level access to VGA registers and structures. Also provides an API for pixel plotting.
• vga-figures built on vga and provides drawing operations for basic shapes.

[b-ncMN]

No, unfortunately this crate will not work for your use case. We need a GPU for scaling (at a minimum) and our current GPU layer provides a Vulkan-like interface across all supported backends.

I'm not sure what kind of interface you would expect in a kernel, since presumably you wouldn't need a GPU or high-level interface to it like Vulkan. I suspect the standard VGA interface is what you're looking for? Specifically, this is what I'm thinking of: https://wiki.osdev.org/Drawing_In_a_Linear_Framebuffer and https://wiki.osdev.org/VGA_Resources

If instead you do expect to have a GPU and driver, then pixels could potentially be an option for you. At that point, we would need to make wgpu no_std. But it has been mentioned that they cannot do this: gfx-rs/wgpu#2278 (comment)

Alternatives you might consider:

• vga offers low-level access to VGA registers and structures. Also provides an API for pixel plotting.

• vga-figures built on vga and provides drawing operations for basic shapes.

It is because I am given a basic framebuffer and I wanted an api to draw text for me on that framebuffer