309 lines
9.0 KiB
C
Executable File
309 lines
9.0 KiB
C
Executable File
/*
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* Copyright (c) 2018 naehrwert
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdarg.h>
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#include "gfx.h"
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static const u8 _gfx_font[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x18, 0x18, 0x00, 0x0C, 0x00,
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0x00, 0x22, 0x22, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x66, 0xFF, 0x66, 0xFF, 0x66, 0x66,
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0x00, 0x18, 0x7C, 0x06, 0x3C, 0x60, 0x3E, 0x18, 0x10, 0x46, 0x66, 0x30, 0x18, 0x0C, 0x66, 0x62,
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0x00, 0x3C, 0x66, 0x3C, 0x1C, 0xE6, 0x66, 0xFC, 0x00, 0x18, 0x0C, 0x06, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x30, 0x18, 0x0C, 0x0C, 0x18, 0x30, 0x00, 0x00, 0x0C, 0x18, 0x30, 0x30, 0x18, 0x0C, 0x00,
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0x00, 0x66, 0x3C, 0xFF, 0x3C, 0x66, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7E, 0x18, 0x18, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x40, 0x60, 0x30, 0x18, 0x0C, 0x06, 0x00,
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0x00, 0x3C, 0x66, 0x76, 0x6E, 0x66, 0x3C, 0x00, 0x00, 0x18, 0x1C, 0x18, 0x18, 0x18, 0x7E, 0x00,
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0x00, 0x3C, 0x62, 0x30, 0x0C, 0x06, 0x7E, 0x00, 0x00, 0x3C, 0x62, 0x38, 0x60, 0x66, 0x3C, 0x00,
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0x00, 0x6C, 0x6C, 0x66, 0xFE, 0x60, 0x60, 0x00, 0x00, 0x7E, 0x06, 0x7E, 0x60, 0x66, 0x3C, 0x00,
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0x00, 0x3C, 0x06, 0x3E, 0x66, 0x66, 0x3C, 0x00, 0x00, 0x7E, 0x30, 0x30, 0x18, 0x18, 0x18, 0x00,
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0x00, 0x3C, 0x66, 0x3C, 0x66, 0x66, 0x3C, 0x00, 0x00, 0x3C, 0x66, 0x7C, 0x60, 0x66, 0x3C, 0x00,
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0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x18, 0x0C, 0x00,
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0x00, 0x70, 0x1C, 0x06, 0x06, 0x1C, 0x70, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x3E, 0x00, 0x00, 0x00,
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0x00, 0x0E, 0x38, 0x60, 0x60, 0x38, 0x0E, 0x00, 0x00, 0x3C, 0x66, 0x30, 0x18, 0x00, 0x18, 0x00,
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0x00, 0x3C, 0x66, 0x76, 0x76, 0x06, 0x46, 0x3C, 0x00, 0x3C, 0x66, 0x7E, 0x66, 0x66, 0x66, 0x00,
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0x00, 0x3E, 0x66, 0x3E, 0x66, 0x66, 0x3E, 0x00, 0x00, 0x3C, 0x66, 0x06, 0x06, 0x66, 0x3C, 0x00,
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0x00, 0x1E, 0x36, 0x66, 0x66, 0x36, 0x1E, 0x00, 0x00, 0x7E, 0x06, 0x1E, 0x06, 0x06, 0x7E, 0x00,
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0x00, 0x3E, 0x06, 0x1E, 0x06, 0x06, 0x06, 0x00, 0x00, 0x3C, 0x66, 0x06, 0x76, 0x66, 0x3C, 0x00,
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0x00, 0x66, 0x66, 0x7E, 0x66, 0x66, 0x66, 0x00, 0x00, 0x3C, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x00,
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0x00, 0x78, 0x30, 0x30, 0x30, 0x36, 0x1C, 0x00, 0x00, 0x66, 0x36, 0x1E, 0x1E, 0x36, 0x66, 0x00,
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0x00, 0x06, 0x06, 0x06, 0x06, 0x06, 0x7E, 0x00, 0x00, 0x46, 0x6E, 0x7E, 0x56, 0x46, 0x46, 0x00,
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0x00, 0x66, 0x6E, 0x7E, 0x76, 0x66, 0x66, 0x00, 0x00, 0x3C, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x00,
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0x00, 0x3E, 0x66, 0x3E, 0x06, 0x06, 0x06, 0x00, 0x00, 0x3C, 0x66, 0x66, 0x66, 0x3C, 0x70, 0x00,
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0x00, 0x3E, 0x66, 0x3E, 0x1E, 0x36, 0x66, 0x00, 0x00, 0x3C, 0x66, 0x0C, 0x30, 0x66, 0x3C, 0x00,
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0x00, 0x7E, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x00,
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0x00, 0x66, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00, 0x00, 0x46, 0x46, 0x56, 0x7E, 0x6E, 0x46, 0x00,
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0x00, 0x66, 0x3C, 0x18, 0x3C, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x3C, 0x18, 0x18, 0x18, 0x00,
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0x00, 0x7E, 0x30, 0x18, 0x0C, 0x06, 0x7E, 0x00, 0x00, 0x3C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x3C,
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0x00, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x40, 0x00, 0x00, 0x3C, 0x30, 0x30, 0x30, 0x30, 0x30, 0x3C,
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0x00, 0x18, 0x3C, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7E,
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0x00, 0x0C, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x60, 0x7C, 0x66, 0x7C, 0x00,
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0x00, 0x06, 0x06, 0x3E, 0x66, 0x66, 0x3E, 0x00, 0x00, 0x00, 0x3C, 0x06, 0x06, 0x06, 0x3C, 0x00,
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0x00, 0x60, 0x60, 0x7C, 0x66, 0x66, 0x7C, 0x00, 0x00, 0x00, 0x3C, 0x66, 0x7E, 0x06, 0x3C, 0x00,
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0x00, 0x38, 0x0C, 0x3E, 0x0C, 0x0C, 0x0C, 0x00, 0x00, 0x00, 0x7C, 0x66, 0x7C, 0x40, 0x3C, 0x00,
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0x00, 0x06, 0x06, 0x3E, 0x66, 0x66, 0x66, 0x00, 0x00, 0x18, 0x00, 0x1C, 0x18, 0x18, 0x3C, 0x00,
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0x00, 0x30, 0x00, 0x30, 0x30, 0x30, 0x1E, 0x00, 0x00, 0x06, 0x06, 0x36, 0x1E, 0x36, 0x66, 0x00,
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0x00, 0x1C, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x00, 0x00, 0x00, 0x66, 0xFE, 0xFE, 0xD6, 0xC6, 0x00,
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0x00, 0x00, 0x3E, 0x66, 0x66, 0x66, 0x66, 0x00, 0x00, 0x00, 0x3C, 0x66, 0x66, 0x66, 0x3C, 0x00,
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0x00, 0x00, 0x3E, 0x66, 0x66, 0x3E, 0x06, 0x00, 0x00, 0x00, 0x7C, 0x66, 0x66, 0x7C, 0x60, 0x00,
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0x00, 0x00, 0x3E, 0x66, 0x06, 0x06, 0x06, 0x00, 0x00, 0x00, 0x7C, 0x06, 0x3C, 0x60, 0x3E, 0x00,
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0x00, 0x18, 0x7E, 0x18, 0x18, 0x18, 0x70, 0x00, 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x7C, 0x00,
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0x00, 0x00, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x00, 0x00, 0x00, 0xC6, 0xD6, 0xFE, 0x7C, 0x6C, 0x00,
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0x00, 0x00, 0x66, 0x3C, 0x18, 0x3C, 0x66, 0x00, 0x00, 0x00, 0x66, 0x66, 0x7C, 0x60, 0x3C, 0x00,
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0x00, 0x00, 0x7E, 0x30, 0x18, 0x0C, 0x7E, 0x00, 0x00, 0x00, 0x18, 0x08, 0x08, 0x04, 0x08, 0x08,
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0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, 0x0C, 0x08, 0x08, 0x10, 0x08, 0x08,
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};
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void gfx_init_ctxt(gfx_ctxt_t *ctxt, u32 *fb, u32 width, u32 height, u32 stride)
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{
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ctxt->fb = fb;
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ctxt->width = width;
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ctxt->height = height;
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ctxt->stride = stride;
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}
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void gfx_clear(gfx_ctxt_t *ctxt, u32 color)
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{
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for (u32 i = 0; i < ctxt->height * ctxt->stride; i++)
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ctxt->fb[i] = color;
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}
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void gfx_con_init(gfx_con_t *con, gfx_ctxt_t *ctxt)
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{
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con->gfx_ctxt = ctxt;
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con->x = 0;
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con->y = 0;
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con->fgcol = 0xFFFFFFFF;
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con->fillbg = 0;
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con->bgcol = 0xFF000000;
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}
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void gfx_con_setcol(gfx_con_t *con, u32 fgcol, int fillbg, u32 bgcol)
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{
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con->fgcol = fgcol;
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con->fillbg = fillbg;
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con->bgcol = bgcol;
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}
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void gfx_con_getpos(gfx_con_t *con, u32 *x, u32 *y)
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{
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*x = con->x;
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*y = con->y;
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}
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void gfx_con_setpos(gfx_con_t *con, u32 x, u32 y)
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{
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con->x = x;
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con->y = y;
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}
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void gfx_putc(gfx_con_t *con, char c)
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{
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if (c >= 32 && c < 128)
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{
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u8 *cbuf = (u8 *)&_gfx_font[8 * (c - 32)];
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u32 *fb = con->gfx_ctxt->fb + con->x + con->y * con->gfx_ctxt->stride;
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for (u32 i = 0; i < 8; i++)
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{
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u8 v = *cbuf++;
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for (u32 j = 0; j < 8; j++)
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{
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if (v & 1)
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*fb = con->fgcol;
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else if (con->fillbg)
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*fb = con->bgcol;
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v >>= 1;
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fb++;
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}
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fb += con->gfx_ctxt->stride - 8;
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}
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con->x += 8;
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}
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else if (c == '\n')
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{
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con->x = 0;
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con->y += 8;
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if (con->y > con->gfx_ctxt->height - 8)
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con->y = 0;
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}
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}
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void gfx_puts(gfx_con_t *con, const char *s)
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{
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if (!s)
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return;
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for (; *s; s++)
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gfx_putc(con, *s);
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}
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static void _gfx_putn(gfx_con_t *con, u32 v, int base, char fill, int fcnt)
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{
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char buf[65];
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static const char digits[] = "0123456789ABCDEFghijklmnopqrstuvwxyz";
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char *p;
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int c = fcnt;
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if (base > 36)
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return;
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p = buf + 64;
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*p = 0;
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do
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{
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c--;
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*--p = digits[v % base];
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v /= base;
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} while (v);
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if (fill != 0)
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{
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while (c > 0)
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{
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*--p = fill;
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c--;
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}
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}
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gfx_puts(con, p);
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}
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void gfx_printf(gfx_con_t *con, const char *fmt, ...)
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{
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va_list ap;
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int fill, fcnt;
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va_start(ap, fmt);
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while(*fmt)
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{
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if(*fmt == '%')
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{
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fmt++;
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fill = 0;
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fcnt = 0;
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if ((*fmt >= '0' && *fmt <= '9') || *fmt == ' ')
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{
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fcnt = *fmt;
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fmt++;
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if (*fmt >= '0' && *fmt <= '9')
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{
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fill = fcnt;
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fcnt = *fmt - '0';
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fmt++;
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}
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else
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{
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fill = ' ';
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fcnt -= '0';
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}
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}
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switch(*fmt)
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{
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case 'c':
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gfx_putc(con, va_arg(ap, u32));
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break;
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case 's':
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gfx_puts(con, va_arg(ap, char *));
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break;
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case 'd':
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_gfx_putn(con, va_arg(ap, u32), 10, fill, fcnt);
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break;
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case 'x':
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case 'X':
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_gfx_putn(con, va_arg(ap, u32), 16, fill, fcnt);
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break;
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case 'k':
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con->fgcol = va_arg(ap, u32);
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break;
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case 'K':
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con->bgcol = va_arg(ap, u32);
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con->fillbg = fcnt;
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break;
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case '%':
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gfx_putc(con, '%');
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break;
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case '\0':
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goto out;
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default:
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gfx_putc(con, '%');
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gfx_putc(con, *fmt);
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break;
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}
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}
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else
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gfx_putc(con, *fmt);
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fmt++;
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}
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out:
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va_end(ap);
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}
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void gfx_hexdump(gfx_con_t *con, u32 base, const u8 *buf, u32 len)
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{
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for(u32 i = 0; i < len; i++)
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{
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if(i % 0x10 == 0)
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{
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if(i != 0)
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{
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gfx_puts(con, "| ");
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for(u32 j = 0; j < 0x10; j++)
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{
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u8 c = buf[i - 0x10 + j];
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if(c >= 32 && c < 128)
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gfx_putc(con, c);
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else
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gfx_putc(con, '.');
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}
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gfx_putc(con, '\n');
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}
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gfx_printf(con, "%08x: ", base + i);
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}
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gfx_printf(con, "%02x ", buf[i]);
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}
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gfx_putc(con, '\n');
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}
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static int abs(int x)
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{
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if (x < 0)
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return -x;
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return x;
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}
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void gfx_set_pixel(gfx_ctxt_t *ctxt, u32 x, u32 y, u32 color)
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{
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ctxt->fb[x + y * ctxt->stride] = color;
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}
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void gfx_line(gfx_ctxt_t *ctxt, int x0, int y0, int x1, int y1, u32 color)
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{
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int dx = abs(x1-x0), sx = x0 < x1 ? 1 : -1;
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int dy = abs(y1-y0), sy = y0 < y1 ? 1 : -1;
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int err = (dx > dy ? dx : -dy) / 2, e2;
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while (1)
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{
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gfx_set_pixel(ctxt, x0, y0, color);
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if (x0 == x1 && y0 == y1)
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break;
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e2 = err;
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if (e2 >-dx) { err -= dy; x0 += sx; }
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if (e2 < dy) { err += dx; y0 += sy; }
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}
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}
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