From 354c5374697e9d92bbb0b2bfb2d2384d1ca716ad Mon Sep 17 00:00:00 2001 From: OBattler Date: Mon, 8 Jan 2024 00:07:00 +0100 Subject: [PATCH] Added 3 CGA line doubling types, in order from the lowest to the highest quality, and the IBM 5153 monitor (per VileR's colors) which is now default, closes #3105. --- src/video/vid_cga.c | 520 +++++++++++++++++++++++++++++++------------- src/video/video.c | 21 +- 2 files changed, 390 insertions(+), 151 deletions(-) diff --git a/src/video/vid_cga.c b/src/video/vid_cga.c index 3d806d95b..07a8dfcdb 100644 --- a/src/video/vid_cga.c +++ b/src/video/vid_cga.c @@ -43,11 +43,29 @@ #define COMPOSITE_OLD 0 #define COMPOSITE_NEW 1 +#define DOUBLE_NONE 0 +#define DOUBLE_SIMPLE 1 +#define DOUBLE_INTERPOLATE_SRGB 2 +#define DOUBLE_INTERPOLATE_LINEAR 3 + +typedef union +{ + uint32_t color; + struct { + uint8_t b; + uint8_t g; + uint8_t r; + uint8_t a; + }; +} color_t; + static uint8_t crtcmask[32] = { 0xff, 0xff, 0xff, 0xff, 0x7f, 0x1f, 0x7f, 0x7f, 0xf3, 0x1f, 0x7f, 0x1f, 0x3f, 0xff, 0x3f, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; +static uint8_t interp_lut[2][256][256]; + static video_timings_t timing_cga = { .type = VIDEO_ISA, .write_b = 8, .write_w = 16, .write_l = 32, .read_b = 8, .read_w = 16, .read_l = 32 }; void cga_recalctimings(cga_t *cga); @@ -201,24 +219,269 @@ cga_recalctimings(cga_t *cga) cga->dispofftime = (uint64_t) (_dispofftime); } -void -cga_poll(void *priv) +static void +cga_render(cga_t *cga, int line) { - cga_t *cga = (cga_t *) priv; uint16_t ca = (cga->crtc[15] | (cga->crtc[14] << 8)) & 0x3fff; int drawcursor; int x; int c; - int xs_temp; - int ys_temp; - int oldvc; uint8_t chr; uint8_t attr; - uint8_t border; uint16_t dat; int cols[4]; int col; + + if ((cga->cgamode & 0x12) == 0x12) { + for (c = 0; c < 8; ++c) { + buffer32->line[line][c] = 0; + if (cga->cgamode & 1) + buffer32->line[line][c + (cga->crtc[1] << 3) + 8] = 0; + else + buffer32->line[line][c + (cga->crtc[1] << 4) + 8] = 0; + } + } else { + for (c = 0; c < 8; ++c) { + buffer32->line[line][c] = (cga->cgacol & 15) + 16; + if (cga->cgamode & 1) + buffer32->line[line][c + (cga->crtc[1] << 3) + 8] = (cga->cgacol & 15) + 16; + else + buffer32->line[line][c + (cga->crtc[1] << 4) + 8] = (cga->cgacol & 15) + 16; + } + } + if (cga->cgamode & 1) { + for (x = 0; x < cga->crtc[1]; x++) { + if (cga->cgamode & 8) { + chr = cga->charbuffer[x << 1]; + attr = cga->charbuffer[(x << 1) + 1]; + } else + chr = attr = 0; + drawcursor = ((cga->ma == ca) && cga->con && cga->cursoron); + cols[1] = (attr & 15) + 16; + if (cga->cgamode & 0x20) { + cols[0] = ((attr >> 4) & 7) + 16; + if ((cga->cgablink & 8) && (attr & 0x80) && !cga->drawcursor) + cols[1] = cols[0]; + } else + cols[0] = (attr >> 4) + 16; + if (drawcursor) { + for (c = 0; c < 8; c++) { + buffer32->line[line][(x << 3) + c + 8] + = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0] ^ 15; + } + } else { + for (c = 0; c < 8; c++) { + buffer32->line[line][(x << 3) + c + 8] + = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0]; + } + } + cga->ma++; + } + } else if (!(cga->cgamode & 2)) { + for (x = 0; x < cga->crtc[1]; x++) { + if (cga->cgamode & 8) { + chr = cga->vram[(cga->ma << 1) & 0x3fff]; + attr = cga->vram[((cga->ma << 1) + 1) & 0x3fff]; + } else + chr = attr = 0; + drawcursor = ((cga->ma == ca) && cga->con && cga->cursoron); + cols[1] = (attr & 15) + 16; + if (cga->cgamode & 0x20) { + cols[0] = ((attr >> 4) & 7) + 16; + if ((cga->cgablink & 8) && (attr & 0x80)) + cols[1] = cols[0]; + } else + cols[0] = (attr >> 4) + 16; + cga->ma++; + if (drawcursor) { + for (c = 0; c < 8; c++) { + buffer32->line[line][(x << 4) + (c << 1) + 8] + = buffer32->line[line][(x << 4) + (c << 1) + 9] + = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0] ^ 15; + } + } else { + for (c = 0; c < 8; c++) { + buffer32->line[line][(x << 4) + (c << 1) + 8] + = buffer32->line[line][(x << 4) + (c << 1) + 9] + = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0]; + } + } + } + } else if (!(cga->cgamode & 16)) { + cols[0] = (cga->cgacol & 15) | 16; + col = (cga->cgacol & 16) ? 24 : 16; + if (cga->cgamode & 4) { + cols[1] = col | 3; /* Cyan */ + cols[2] = col | 4; /* Red */ + cols[3] = col | 7; /* White */ + } else if (cga->cgacol & 32) { + cols[1] = col | 3; /* Cyan */ + cols[2] = col | 5; /* Magenta */ + cols[3] = col | 7; /* White */ + } else { + cols[1] = col | 2; /* Green */ + cols[2] = col | 4; /* Red */ + cols[3] = col | 6; /* Yellow */ + } + for (x = 0; x < cga->crtc[1]; x++) { + if (cga->cgamode & 8) + dat = (cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000)] << 8) | + cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000) + 1]; + else + dat = 0; + cga->ma++; + for (c = 0; c < 8; c++) { + buffer32->line[line][(x << 4) + (c << 1) + 8] + = buffer32->line[line][(x << 4) + (c << 1) + 9] + = cols[dat >> 14]; + dat <<= 2; + } + } + } else { + cols[0] = 0; + cols[1] = (cga->cgacol & 15) + 16; + for (x = 0; x < cga->crtc[1]; x++) { + if (cga->cgamode & 8) + dat = (cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000)] << 8) | + cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000) + 1]; + else + dat = 0; + cga->ma++; + for (c = 0; c < 16; c++) { + buffer32->line[line][(x << 4) + c + 8] = cols[dat >> 15]; + dat <<= 1; + } + } + } +} + +static void +cga_render_blank(cga_t *cga, int line) +{ + int col = ((cga->cgamode & 0x12) == 0x12) ? 0 : (cga->cgacol & 15) + 16; + + if (cga->cgamode & 1) + hline(buffer32, 0, line, (cga->crtc[1] << 3) + 16, col); + else + hline(buffer32, 0, line, (cga->crtc[1] << 4) + 16, col); +} + +static void +cga_render_process(cga_t *cga, int line) +{ + int x; + uint8_t border; + + if (cga->cgamode & 1) + x = (cga->crtc[1] << 3) + 16; + else + x = (cga->crtc[1] << 4) + 16; + + if (cga->composite) { + border = ((cga->cgamode & 0x12) == 0x12) ? 0 : (cga->cgacol & 15); + + Composite_Process(cga->cgamode, border, x >> 2, buffer32->line[line]); + } else + video_process_8(x, line); +} + +static uint8_t +cga_interpolate_srgb(uint8_t co1, uint8_t co2, double fraction) +{ + uint8_t ret = ((co2 - co1) * fraction + co1); + + return ret; +} + +static uint8_t +cga_interpolate_linear(uint8_t co1, uint8_t co2, double fraction) +{ + double c1, c2; + double r1, r2; + uint8_t ret; + + c1 = ((double) co1) / 255.0; + c1 = pow((co1 >= 0) ? c1 : -c1, 2.19921875); + if (co1 <= 0) + c1 = -c1; + c2 = ((double) co2) / 255.0; + c2 = pow((co2 >= 0) ? c2 : -c2, 2.19921875); + if (co2 <= 0) + c2 = -c2; + r1 = ((c2 - c1) * fraction + c1); + r2 = pow((r1 >= 0.0) ? r1 : -r1, 1.0 / 2.19921875); + if (r1 <= 0.0) + r2 = -r2; + ret = (uint8_t) (r2 * 255.0); + + return ret; +} + +static color_t +cga_interpolate_lookup(cga_t *cga, color_t color1, color_t color2, double fraction) +{ + color_t ret; + uint8_t dt = cga->double_type - DOUBLE_INTERPOLATE_SRGB; + + ret.a = 0x00; + ret.r = interp_lut[dt][color1.r][color2.r]; + ret.g = interp_lut[dt][color1.g][color2.g]; + ret.b = interp_lut[dt][color1.b][color2.b]; + + return ret; +} + +static void +cga_interpolate(cga_t *cga, int x, int y, int w, int h) +{ + double quotient = 0.5; + + for (int i = y; i < (y + h); i++) { + if (i & 1) for (int j = x; j < (x + w); j++) { + int prev = i - 1; + int next = i + 1; + color_t prev_color, next_color; + color_t black; + color_t interim_1, interim_2; + color_t final; + + black.color = 0x00000000; + + prev_color.color = buffer32->line[prev][j]; + + if (next < (y + h)) + next_color.color = buffer32->line[next][j]; + else + next_color.color = 0x00000000; + + interim_1 = cga_interpolate_lookup(cga, prev_color, black, quotient); + interim_2 = cga_interpolate_lookup(cga, black, next_color, quotient); + final = cga_interpolate_lookup(cga, interim_1, interim_2, quotient); + + buffer32->line[i][j] = final.color; + } + } +} + +static void +cga_blit_memtoscreen(cga_t *cga, int x, int y, int w, int h) +{ + if (cga->double_type > DOUBLE_SIMPLE) + cga_interpolate(cga, x, y, w, h); + + video_blit_memtoscreen(x, y, w, h); +} + +void +cga_poll(void *priv) +{ + cga_t *cga = (cga_t *) priv; + int x; int oldsc; + int oldvc; + int xs_temp; + int ys_temp; + int old_ma; if (!cga->linepos) { timer_advance_u64(&cga->timer, cga->dispofftime); @@ -233,143 +496,44 @@ cga_poll(void *priv) video_wait_for_buffer(); } cga->lastline = cga->displine; - if ((cga->cgamode & 0x12) == 0x12) { - for (c = 0; c < 8; ++c) { - buffer32->line[cga->displine][c] = 0; - if (cga->cgamode & 1) - buffer32->line[cga->displine][c + (cga->crtc[1] << 3) + 8] = 0; - else - buffer32->line[cga->displine][c + (cga->crtc[1] << 4) + 8] = 0; - } - } else { - for (c = 0; c < 8; ++c) { - buffer32->line[cga->displine][c] = (cga->cgacol & 15) + 16; - if (cga->cgamode & 1) - buffer32->line[cga->displine][c + (cga->crtc[1] << 3) + 8] = (cga->cgacol & 15) + 16; - else - buffer32->line[cga->displine][c + (cga->crtc[1] << 4) + 8] = (cga->cgacol & 15) + 16; - } - } - if (cga->cgamode & 1) { - for (x = 0; x < cga->crtc[1]; x++) { - if (cga->cgamode & 8) { - chr = cga->charbuffer[x << 1]; - attr = cga->charbuffer[(x << 1) + 1]; - } else - chr = attr = 0; - drawcursor = ((cga->ma == ca) && cga->con && cga->cursoron); - cols[1] = (attr & 15) + 16; - if (cga->cgamode & 0x20) { - cols[0] = ((attr >> 4) & 7) + 16; - if ((cga->cgablink & 8) && (attr & 0x80) && !cga->drawcursor) - cols[1] = cols[0]; - } else - cols[0] = (attr >> 4) + 16; - if (drawcursor) { - for (c = 0; c < 8; c++) { - buffer32->line[cga->displine][(x << 3) + c + 8] = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0] ^ 15; - } - } else { - for (c = 0; c < 8; c++) { - buffer32->line[cga->displine][(x << 3) + c + 8] = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0]; - } - } - cga->ma++; - } - } else if (!(cga->cgamode & 2)) { - for (x = 0; x < cga->crtc[1]; x++) { - if (cga->cgamode & 8) { - chr = cga->vram[(cga->ma << 1) & 0x3fff]; - attr = cga->vram[((cga->ma << 1) + 1) & 0x3fff]; - } else - chr = attr = 0; - drawcursor = ((cga->ma == ca) && cga->con && cga->cursoron); - cols[1] = (attr & 15) + 16; - if (cga->cgamode & 0x20) { - cols[0] = ((attr >> 4) & 7) + 16; - if ((cga->cgablink & 8) && (attr & 0x80)) - cols[1] = cols[0]; - } else - cols[0] = (attr >> 4) + 16; - cga->ma++; - if (drawcursor) { - for (c = 0; c < 8; c++) { - buffer32->line[cga->displine][(x << 4) + (c << 1) + 8] - = buffer32->line[cga->displine][(x << 4) + (c << 1) + 9] - = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0] ^ 15; - } - } else { - for (c = 0; c < 8; c++) { - buffer32->line[cga->displine][(x << 4) + (c << 1) + 8] - = buffer32->line[cga->displine][(x << 4) + (c << 1) + 9] - = cols[(fontdat[chr + cga->fontbase][cga->sc & 7] & (1 << (c ^ 7))) ? 1 : 0]; - } - } - } - } else if (!(cga->cgamode & 16)) { - cols[0] = (cga->cgacol & 15) | 16; - col = (cga->cgacol & 16) ? 24 : 16; - if (cga->cgamode & 4) { - cols[1] = col | 3; /* Cyan */ - cols[2] = col | 4; /* Red */ - cols[3] = col | 7; /* White */ - } else if (cga->cgacol & 32) { - cols[1] = col | 3; /* Cyan */ - cols[2] = col | 5; /* Magenta */ - cols[3] = col | 7; /* White */ - } else { - cols[1] = col | 2; /* Green */ - cols[2] = col | 4; /* Red */ - cols[3] = col | 6; /* Yellow */ - } - for (x = 0; x < cga->crtc[1]; x++) { - if (cga->cgamode & 8) - dat = (cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000)] << 8) | cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000) + 1]; - else - dat = 0; - cga->ma++; - for (c = 0; c < 8; c++) { - buffer32->line[cga->displine][(x << 4) + (c << 1) + 8] - = buffer32->line[cga->displine][(x << 4) + (c << 1) + 9] - = cols[dat >> 14]; - dat <<= 2; - } - } - } else { - cols[0] = 0; - cols[1] = (cga->cgacol & 15) + 16; - for (x = 0; x < cga->crtc[1]; x++) { - if (cga->cgamode & 8) - dat = (cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000)] << 8) | cga->vram[((cga->ma << 1) & 0x1fff) + ((cga->sc & 1) * 0x2000) + 1]; - else - dat = 0; - cga->ma++; - for (c = 0; c < 16; c++) { - buffer32->line[cga->displine][(x << 4) + c + 8] = cols[dat >> 15]; - dat <<= 1; - } - } + switch (cga->double_type) { + default: + cga_render(cga, cga->displine << 1); + cga_render_blank(cga, (cga->displine << 1) + 1); + break; + case DOUBLE_NONE: + cga_render(cga, cga->displine); + break; + case DOUBLE_SIMPLE: + old_ma = cga->ma; + cga_render(cga, cga->displine << 1); + cga->ma = old_ma; + cga_render(cga, (cga->displine << 1) + 1); + break; } } else { - cols[0] = ((cga->cgamode & 0x12) == 0x12) ? 0 : (cga->cgacol & 15) + 16; - if (cga->cgamode & 1) { - hline(buffer32, 0, cga->displine, (cga->crtc[1] << 3) + 16, cols[0]); - } else { - hline(buffer32, 0, cga->displine, (cga->crtc[1] << 4) + 16, cols[0]); + switch (cga->double_type) { + default: + cga_render_blank(cga, cga->displine << 1); + break; + case DOUBLE_NONE: + cga_render_blank(cga, cga->displine); + break; + case DOUBLE_SIMPLE: + cga_render_blank(cga, cga->displine << 1); + cga_render_blank(cga, (cga->displine << 1) + 1); + break; } } - if (cga->cgamode & 1) - x = (cga->crtc[1] << 3) + 16; - else - x = (cga->crtc[1] << 4) + 16; - - if (cga->composite) { - border = ((cga->cgamode & 0x12) == 0x12) ? 0 : (cga->cgacol & 15); - - Composite_Process(cga->cgamode, border, x >> 2, buffer32->line[cga->displine]); - } else { - video_process_8(x, cga->displine); + switch (cga->double_type) { + default: + cga_render_process(cga, cga->displine << 1); + cga_render_process(cga, (cga->displine << 1) + 1); + break; + case DOUBLE_NONE: + cga_render_process(cga, cga->displine); + break; } cga->sc = oldsc; @@ -386,7 +550,8 @@ cga_poll(void *priv) if (!cga->vsynctime) cga->cgastat &= ~8; } - if (cga->sc == (cga->crtc[11] & 31) || ((cga->crtc[8] & 3) == 3 && cga->sc == ((cga->crtc[11] & 31) >> 1))) { + if (cga->sc == (cga->crtc[11] & 31) || ((cga->crtc[8] & 3) == 3 && + cga->sc == ((cga->crtc[11] & 31) >> 1))) { cga->con = 0; cga->coff = 1; } @@ -445,6 +610,8 @@ cga_poll(void *priv) xs_temp = x; ys_temp = cga->lastline - cga->firstline; + if (cga->double_type > DOUBLE_NONE) + ys_temp <<= 1; if ((xs_temp > 0) && (ys_temp > 0)) { if (xs_temp < 64) @@ -454,21 +621,33 @@ cga_poll(void *priv) if (!enable_overscan) xs_temp -= 16; - if ((cga->cgamode & 8) && ((xs_temp != xsize) || (ys_temp != ysize) || video_force_resize_get())) { + if ((cga->cgamode & 8) && ((xs_temp != xsize) || + (ys_temp != ysize) || video_force_resize_get())) { xsize = xs_temp; ysize = ys_temp; - set_screen_size(xsize, ysize + (enable_overscan ? 8 : 0)); + if (cga->double_type > DOUBLE_NONE) + set_screen_size(xsize, ysize + (enable_overscan ? 16 : 0)); + else + set_screen_size(xsize, ysize + (enable_overscan ? 8 : 0)); if (video_force_resize_get()) video_force_resize_set(0); } - if (enable_overscan) { - video_blit_memtoscreen(0, cga->firstline - 4, - xsize, (cga->lastline - cga->firstline) + 8); + if (cga->double_type > DOUBLE_NONE) { + if (enable_overscan) + cga_blit_memtoscreen(cga, 0, (cga->firstline - 4) << 1, + xsize, ((cga->lastline - cga->firstline) << 1) + 16); + else + cga_blit_memtoscreen(cga, 8, cga->firstline << 1, + xsize, (cga->lastline - cga->firstline) << 1); } else { - video_blit_memtoscreen(8, cga->firstline, - xsize, cga->lastline - cga->firstline); + if (enable_overscan) + video_blit_memtoscreen(0, cga->firstline - 4, + xsize, (cga->lastline - cga->firstline) + 8); + else + video_blit_memtoscreen(8, cga->firstline, + xsize, cga->lastline - cga->firstline); } } @@ -502,7 +681,8 @@ cga_poll(void *priv) } if (cga->cgadispon) cga->cgastat &= ~1; - if (cga->sc == (cga->crtc[10] & 31) || ((cga->crtc[8] & 3) == 3 && cga->sc == ((cga->crtc[10] & 31) >> 1))) + if (cga->sc == (cga->crtc[10] & 31) || ((cga->crtc[8] & 3) == 3 && + cga->sc == ((cga->crtc[10] & 31) >> 1))) cga->con = 1; if (cga->cgadispon && (cga->cgamode & 1)) { for (x = 0; x < (cga->crtc[1] << 1); x++) @@ -546,6 +726,15 @@ cga_standalone_init(UNUSED(const device_t *info)) cgapal_rebuild(); update_cga16_color(cga->cgamode); + cga->double_type = device_get_config_int("double_type"); + + for (uint16_t i = 0; i < 256; i++) { + for (uint16_t j = 0; j < 256; j++) { + interp_lut[0][i][j] = cga_interpolate_srgb(i, j, 0.5); + interp_lut[1][i][j] = cga_interpolate_linear(i, j, 0.5); + } + } + return cga; } @@ -625,10 +814,10 @@ const device_config_t cga_config[] = { .name = "rgb_type", .description = "RGB type", .type = CONFIG_SELECTION, - .default_int = 0, + .default_int = 5, .selection = { { - .description = "Color", + .description = "Color (generic)", .value = 0 }, { @@ -647,6 +836,37 @@ const device_config_t cga_config[] = { .description = "Color (no brown)", .value = 4 }, + { + .description = "Color (IBM 5153)", + .value = 5 + }, + { + .description = "" + } + } + }, + { + .name = "double_type", + .description = "Line doubling type", + .type = CONFIG_SELECTION, + .default_int = DOUBLE_NONE, + .selection = { + { + .description = "None", + .value = DOUBLE_NONE + }, + { + .description = "Simple doubling", + .value = DOUBLE_SIMPLE + }, + { + .description = "sRGB interpolation", + .value = DOUBLE_INTERPOLATE_SRGB + }, + { + .description = "Linear interpolation", + .value = DOUBLE_INTERPOLATE_LINEAR + }, { .description = "" } diff --git a/src/video/video.c b/src/video/video.c index 4c561e229..710449746 100644 --- a/src/video/video.c +++ b/src/video/video.c @@ -601,8 +601,27 @@ cgapal_rebuild_monitor(int monitor_index) } } - if (cga_palette_monitor == 7) + if (cga_palette_monitor == 8) palette_lookup[0x16] = makecol(video_6to8[42], video_6to8[42], video_6to8[0]); + else if (cga_palette_monitor == 10) { + /* IBM 5153 CRT, colors by VileR */ + palette_lookup[0x10] = 0x00000000; + palette_lookup[0x11] = 0x000000c4; + palette_lookup[0x12] = 0x0000c400; + palette_lookup[0x13] = 0x0000c4c4; + palette_lookup[0x14] = 0x00c40000; + palette_lookup[0x15] = 0x00c400c4; + palette_lookup[0x16] = 0x00c47e00; + palette_lookup[0x17] = 0x00c4c4c4; + palette_lookup[0x18] = 0x004e4e4e; + palette_lookup[0x19] = 0x004e4edc; + palette_lookup[0x1a] = 0x004edc4e; + palette_lookup[0x1b] = 0x004ef3f3; + palette_lookup[0x1c] = 0x00dc4e4e; + palette_lookup[0x1d] = 0x00f34ef3; + palette_lookup[0x1e] = 0x00f3f34e; + palette_lookup[0x1f] = 0x00ffffff; + } } void