nx_cyrillic_render_gate.nx source

1// nx_cyrillic_render_gate.nx -- proves NATIVE Cyrillic + Latin caption rendering, NO fake green. Renders the 2// Russian caption "привет друг" (uppercase-folded -> ПРИВЕТ ДРУГ) and the Latin caption "HELLO FRIEND" onto two 3// video frames; asserts each sets glyph pixels, asserts the bar is drawn, and a neg-control (empty caption sets 4// 0 pixels). Eyeball -> knowledge/nx_cyrillic_render.png (Cyrillic top, Latin bottom). expect_exit: 0 license_tier: ORIGINAL 5import "nx_syscalls.nx" 6import "nx_css_color_decode.nx" 7import "nx_paint_solid_rect.nx" 8import "nx_font8x8.nx" 9import "nx_font_cyrillic8.nx" 10import "nx_utf8.nx" 11import "nx_caption_render_uni.nx" 12import "nx_png_write.nx" 13 14func rg(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 } 15func rgn(v: i64) -> i64 { 16 if v == 0 { sys_write(1, "0" as *u8, 1); return 0 } 17 var m: i64 = v; if m < 0 { sys_write(1, "-" as *u8, 1); m = 0 - m } 18 let d: *u8 = sys_mmap(24); var k: i64 = 0 19 while m > 0 { d[k] = (48 + (m % 10)) as u8; m = m / 10; k = k + 1 } 20 var j: i64 = k - 1 21 while j >= 0 { sys_write(1, ((d as i64)+j) as *u8, 1); j = j - 1 } 22 return 0 23} 24func slen(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} return n } 25func mkfb(w: i64, h: i64) -> *Framebuffer { 26 let px: *u8 = sys_mmap(w * h * 4) 27 let fb: *Framebuffer = sys_mmap(NX_FRAMEBUFFER_BYTES) as *Framebuffer 28 nx_framebuffer_init(fb, px, w, h) 29 nx_framebuffer_clear(fb) 30 return fb 31} 32 33func main() -> i64 { 34 rg("=== nx_cyrillic_render_gate: native Cyrillic + Latin caption rendering ===\n" as *u8) 35 let w: i64 = 320 36 let h: i64 = 90 37 var pass: i64 = 0 38 var fail: i64 = 0 39 40 let vid: *CssColor = sys_mmap(NX_CSS_COLOR_BYTES) as *CssColor 41 vid.r=30; vid.g=44; vid.b=64; vid.a=255 42 let bar: *CssColor = sys_mmap(NX_CSS_COLOR_BYTES) as *CssColor 43 bar.r=0; bar.g=0; bar.b=0; bar.a=255 44 let fg: *CssColor = sys_mmap(NX_CSS_COLOR_BYTES) as *CssColor 45 fg.r=255; fg.g=235; fg.b=60; fg.a=255 46 let probe: *CssColor = sys_mmap(NX_CSS_COLOR_BYTES) as *CssColor 47 48 // CYRILLIC frame 49 let fbC: *Framebuffer = mkfb(w, h) 50 nx_paint_solid_rect(fbC, 0, 0, w, h, vid) 51 let ru: *u8 = "привет друг" as *u8 52 let setC: i64 = nx_caption_render_uni(fbC, ru, slen(ru), 2, bar, fg) 53 rg(" Cyrillic 'привет друг' -> glyph px = " as *u8); rgn(setC); rg("\n" as *u8) 54 if setC > 0 { pass=pass+1; rg(" ROW cyrillic-renders: GREEN\n" as *u8) } else { fail=fail+1; rg(" ROW cyrillic-renders: RED\n" as *u8) } 55 nx_framebuffer_get_pixel(fbC, 3, h-3, probe) 56 if probe.r==0 { if probe.g==0 { if probe.b==0 { pass=pass+1; rg(" ROW bar-drawn: GREEN\n" as *u8) } else { fail=fail+1 } } else { fail=fail+1 } } else { fail=fail+1; rg(" ROW bar-drawn: RED\n" as *u8) } 57 58 // LATIN frame 59 let fbL: *Framebuffer = mkfb(w, h) 60 nx_paint_solid_rect(fbL, 0, 0, w, h, vid) 61 let en: *u8 = "HELLO FRIEND" as *u8 62 let setL: i64 = nx_caption_render_uni(fbL, en, slen(en), 2, bar, fg) 63 rg(" Latin 'HELLO FRIEND' -> glyph px = " as *u8); rgn(setL); rg("\n" as *u8) 64 if setL > 0 { pass=pass+1; rg(" ROW latin-renders: GREEN\n" as *u8) } else { fail=fail+1; rg(" ROW latin-renders: RED\n" as *u8) } 65 66 // NEG-CONTROL: empty caption sets no glyph pixels 67 let fbE: *Framebuffer = mkfb(w, h) 68 nx_paint_solid_rect(fbE, 0, 0, w, h, vid) 69 if nx_caption_render_uni(fbE, "" as *u8, 0, 2, bar, fg) == 0 { pass=pass+1; rg(" ROW neg-control empty->0px: GREEN\n" as *u8) } else { fail=fail+1; rg(" ROW neg-control: RED\n" as *u8) } 70 71 // eyeball: stack Cyrillic (top) + Latin (bottom) into one PNG 72 let H2: i64 = h * 2 73 let rgb: *u8 = sys_mmap(w * H2 * 3) 74 var y: i64 = 0 75 while y < h { 76 var x: i64 = 0 77 while x < w { 78 let s: i64 = (y * w + x) * 4 79 let d1: i64 = (y * w + x) * 3 80 rgb[d1+0]=fbC.pixels[s+0]; rgb[d1+1]=fbC.pixels[s+1]; rgb[d1+2]=fbC.pixels[s+2] 81 let d2: i64 = ((h + y) * w + x) * 3 82 rgb[d2+0]=fbL.pixels[s+0]; rgb[d2+1]=fbL.pixels[s+1]; rgb[d2+2]=fbL.pixels[s+2] 83 x = x + 1 84 } 85 y = y + 1 86 } 87 nx_png_write_rgb("knowledge/nx_cyrillic_render.png" as *u8, rgb, w, H2) 88 rg(" eyeball -> knowledge/nx_cyrillic_render.png\n" as *u8) 89 90 rg("CYRILLIC-RENDER-GATE pass=" as *u8); rgn(pass); rg(" fail=" as *u8); rgn(fail) 91 if fail == 0 { rg(" verdict=GREEN -- native Cyrillic + Latin captions render; bar drawn; neg-control clean\n" as *u8); sys_exit(0); return 0 } 92 rg(" verdict=RED\n" as *u8); sys_exit(1); return 1 93}