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Refactor Panel Width and Height

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This commit is contained in:
Lee Lup Yuen 2022-12-08 11:20:04 +08:00
parent 7cab40e61d
commit 8b4891e701
1 changed files with 21 additions and 15 deletions
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36
render.zig
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@ -120,19 +120,21 @@ fn renderGraphics(
// Init Framebuffer 2:
// Fill with Semi-Transparent Green Circle
var y: usize = 0;
while (y < 1440) : (y += 1) {
while (y < PANEL_HEIGHT) : (y += 1) {
var x: usize = 0;
while (x < 720) : (x += 1) {
while (x < PANEL_WIDTH) : (x += 1) {
// Get pixel index
const p = (y * 720) + x;
const p = (y * PANEL_WIDTH) + x;
assert(p < fb2.len);
// Shift coordinates so that centre of screen is (0,0)
const x_shift = @intCast(isize, x) - 360;
const y_shift = @intCast(isize, y) - 720;
const half_width = PANEL_WIDTH / 2;
const half_height = PANEL_HEIGHT / 2;
const x_shift = @intCast(isize, x) - half_width;
const y_shift = @intCast(isize, y) - half_height;
// If x^2 + y^2 < radius^2, set the pixel to Semi-Transparent Green
if (x_shift*x_shift + y_shift*y_shift < 360*360) {
if (x_shift*x_shift + y_shift*y_shift < half_width*half_width) {
fb2[p] = 0x8000_8000; // Semi-Transparent Green in ARGB 8888 Format
} else { // Otherwise set to Transparent Black
fb2[p] = 0x0000_0000; // Transparent Black in ARGB 8888 Format
@ -636,11 +638,15 @@ fn initUiChannel(
putreg32(0, UIS_CTRL_REG);
}
/// LCD Panel Width and Height (pixels)
const PANEL_WIDTH = 720;
const PANEL_HEIGHT = 1440;
/// NuttX Video Controller for PinePhone (3 UI Channels)
const videoInfo = c.fb_videoinfo_s {
.fmt = c.FB_FMT_RGBA32, // Pixel format (XRGB 8888)
.xres = 720, // Horizontal resolution in pixel columns
.yres = 1440, // Vertical resolution in pixel rows
.xres = PANEL_WIDTH, // Horizontal resolution in pixel columns
.yres = PANEL_HEIGHT, // Vertical resolution in pixel rows
.nplanes = 1, // Number of color planes supported (Base UI Channel)
.noverlays = 2, // Number of overlays supported (2 Overlay UI Channels)
};
@ -650,11 +656,11 @@ const videoInfo = c.fb_videoinfo_s {
const planeInfo = c.fb_planeinfo_s {
.fbmem = &fb0, // Start of frame buffer memory
.fblen = @sizeOf( @TypeOf(fb0) ), // Length of frame buffer memory in bytes
.stride = 720 * 4, // Length of a line in bytes (4 bytes per pixel)
.stride = PANEL_WIDTH * 4, // Length of a line in bytes (4 bytes per pixel)
.display = 0, // Display number (Unused)
.bpp = 32, // Bits per pixel (XRGB 8888)
.xres_virtual = 720, // Virtual Horizontal resolution in pixel columns
.yres_virtual = 1440, // Virtual Vertical resolution in pixel rows
.xres_virtual = PANEL_WIDTH, // Virtual Horizontal resolution in pixel columns
.yres_virtual = PANEL_HEIGHT, // Virtual Vertical resolution in pixel rows
.xoffset = 0, // Offset from virtual to visible resolution
.yoffset = 0, // Offset from virtual to visible resolution
};
@ -681,14 +687,14 @@ const overlayInfo = [2] c.fb_overlayinfo_s {
.{
.fbmem = &fb2, // Start of frame buffer memory
.fblen = @sizeOf( @TypeOf(fb2) ), // Length of frame buffer memory in bytes
.stride = 720 * 4, // Length of a line in bytes
.stride = PANEL_WIDTH * 4, // Length of a line in bytes
.overlay = 1, // Overlay number (Second Overlay)
.bpp = 32, // Bits per pixel (ARGB 8888)
.blank = 0, // TODO: Blank or unblank
.chromakey = 0, // TODO: Chroma key argb8888 formatted
.color = 0, // TODO: Color argb8888 formatted
.transp = c.fb_transp_s { .transp = 0, .transp_mode = 0 }, // TODO: Transparency
.sarea = c.fb_area_s { .x = 0, .y = 0, .w = 720, .h = 1440 }, // Selected area within the overlay
.sarea = c.fb_area_s { .x = 0, .y = 0, .w = PANEL_WIDTH, .h = PANEL_HEIGHT }, // Selected area within the overlay
.accl = 0, // TODO: Supported hardware acceleration
},
};
@ -696,7 +702,7 @@ const overlayInfo = [2] c.fb_overlayinfo_s {
// Framebuffer 0: (Base UI Channel)
// Fullscreen 720 x 1440 (4 bytes per XRGB 8888 pixel)
// TODO: Does alignment prevent flickering?
var fb0 align(0x1000) = std.mem.zeroes([720 * 1440] u32);
var fb0 align(0x1000) = std.mem.zeroes([PANEL_WIDTH * PANEL_HEIGHT] u32);
// Framebuffer 1: (First Overlay UI Channel)
// Square 600 x 600 (4 bytes per ARGB 8888 pixel)
@ -706,7 +712,7 @@ var fb1 align(0x1000) = std.mem.zeroes([600 * 600] u32);
// Framebuffer 2: (Second Overlay UI Channel)
// Fullscreen 720 x 1440 (4 bytes per ARGB 8888 pixel)
// TODO: Does alignment prevent flickering?
var fb2 align(0x1000) = std.mem.zeroes([720 * 1440] u32);
var fb2 align(0x1000) = std.mem.zeroes([PANEL_WIDTH * PANEL_HEIGHT] u32);
///////////////////////////////////////////////////////////////////////////////
// Init Display Engine