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Init UI Channels

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Lee Lup Yuen 2022-10-31 15:43:07 +08:00
parent fd69cd6f93
commit 776ec9267a
1 changed files with 50 additions and 0 deletions
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50
render.zig
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@ -65,9 +65,59 @@ pub export fn test_render() void {
assert(overlayInfo[1].stride == overlayInfo[1].sarea.w * 4);
}
// Init the Base UI Channel
try initUiChannel(
1, // UI Channel Number (1 for Base UI Channel)
planeInfo.fbmem, // Start of frame buffer memory
planeInfo.fblen, // Length of frame buffer memory in bytes
planeInfo.stride, // Length of a line in bytes (4 bytes per pixel)
planeInfo.xres_virtual, // Horizontal resolution in pixel columns
planeInfo.yres_virtual, // Vertical resolution in pixel rows
planeInfo.xoffset, // Horizontal offset in pixel columns
planeInfo.yoffset, // Vertical offset in pixel rows
);
// Init the 2 Overlay UI Channels
for (overlayInfo) | ov, i | {
try initUiChannel(
@intCast(u8, i + 2), // UI Channel Number (2 and 3 for Overlay UI Channels)
ov.fbmem, // Start of frame buffer memory
ov.fblen, // Length of frame buffer memory in bytes
ov.stride, // Length of a line in bytes (4 bytes per pixel)
ov.sarea.w, // Horizontal resolution in pixel columns
ov.sarea.h, // Vertical resolution in pixel rows
ov.sarea.x, // Horizontal offset in pixel columns
ov.sarea.y, // Vertical offset in pixel rows
);
}
// TODO: Render graphics
}
/// Initialise a UI Channel for PinePhone's A64 Display Engine.
/// We use 3 UI Channels: Base UI Channel (#1) plus 2 Overlay UI Channels (#2, #3)
fn initUiChannel(
channel: u8, // UI Channel Number: 1, 2 or 3
fbmem: ?*anyopaque, // Start of frame buffer memory
fblen: usize, // Length of frame buffer memory in bytes
stride: c.fb_coord_t, // Length of a line in bytes (4 bytes per pixel)
xres: c.fb_coord_t, // Horizontal resolution in pixel columns
yres: c.fb_coord_t, // Vertical resolution in pixel rows
xoffset: c.fb_coord_t, // Horizontal offset in pixel columns
yoffset: c.fb_coord_t, // Vertical offset in pixel rows
) !void {
assert(channel >= 1 and channel <= 3);
// TODO: Init UI Channel
_ = fbmem;
_ = fblen;
_ = stride;
_ = xres;
_ = yres;
_ = xoffset;
_ = yoffset;
}
/// Export MIPI DSI Functions to C. (Why is this needed?)
pub export fn export_dsi_functions() void {
// Export Panel Init Function