diff options
Diffstat (limited to 'fw/fe310/eos/eve/eve_text.c')
| -rw-r--r-- | fw/fe310/eos/eve/eve_text.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/fw/fe310/eos/eve/eve_text.c b/fw/fe310/eos/eve/eve_text.c new file mode 100644 index 0000000..b52678d --- /dev/null +++ b/fw/fe310/eos/eve/eve_text.c @@ -0,0 +1,209 @@ +#include <stdlib.h> +#include <string.h> + +#include "eve.h" +#include "eve_text.h" + +#define TEXT_ATTR 0x0A +#define TEXT_CRSR 0x02DB + +#define LINE_IDX_ADD(l1,l2,s) (((((l1) + (l2)) % (s)) + (s)) % (s)) +#define LINE_IDX_SUB(l1,l2,s) (((((l1) - (l2)) % (s)) + (s)) % (s)) + +#define LINE_IDX_LTE(l1,l2,s,h) (LINE_IDX_SUB(l2,l1,s) <= (s) - (h)) +#define LINE_IDX_DIFF(l1,l2,s) ((l1) > (l2) ? (l1) - (l2) : (s) + (l1) - (l2)) + +static void scroll1(EVEText *box) { + box->line0 = (box->line0 + 1) % box->line_size; + eve_cmd(CMD_MEMSET, "www", box->mem_addr + box->ch_idx, 0x0, box->w * 2); + eve_cmd_exec(1); + eve_text_update(box); + box->dirty = 1; +} + +void eve_text_init(EVEText *box, EVERect *g, uint16_t w, uint16_t h, uint16_t line_size, uint32_t mem_addr, uint32_t *mem_next) { + double scale_x, scale_y; + + if (g->w == 0) { + g->w = w * 8; + } + if (g->h == 0) { + g->h = h * 16; + } + + scale_x = (double)g->w / (w * 8); + scale_y = (double)g->h / (h * 16); + box->g = *g; + box->w = w; + box->h = h; + box->tag = EVE_NOTAG; + box->transform_a = 256 / scale_x; + box->transform_e = 256 / scale_y; + box->ch_w = scale_x * 8; + box->ch_h = scale_y * 16; + box->dl_size = 14; + box->mem_addr = mem_addr; + box->line_size = line_size; + box->line0 = 0; + box->line_top = -1; + box->line_top0 = -1; + box->ch_idx = 0; + if (box->transform_a != 256) { + box->dl_size += 1; + } + if (box->transform_e != 256) { + box->dl_size += 1; + } + + eve_cmd(CMD_MEMSET, "www", mem_addr, 0x0, box->w * 2 * box->line_size); + eve_cmd_exec(1); + + eve_text_update(box); + *mem_next = box->mem_addr + box->w * 2 * box->line_size + box->dl_size * 4; +} + +void eve_text_update(EVEText *box) { + int text_h1; + int text_h2; + int line_top; + + line_top = box->line_top >= 0 ? box->line_top : box->line0; + + if (line_top + box->h > box->line_size) { + text_h1 = box->line_size - line_top; + text_h2 = box->h - text_h1; + } else { + text_h1 = box->h; + text_h2 = 0; + } + + eve_dl_start(box->mem_addr + box->w * 2 * box->line_size, 1); + eve_dl_write(BEGIN(EVE_BITMAPS)); + eve_dl_write(VERTEX_FORMAT(0)); + eve_dl_write(BITMAP_HANDLE(15)); + if (box->transform_a != 256) { + eve_dl_write(BITMAP_TRANSFORM_A(box->transform_a)); + } + if (box->transform_e != 256) { + eve_dl_write(BITMAP_TRANSFORM_E(box->transform_e)); + } + eve_dl_write(BITMAP_SOURCE(box->mem_addr + line_top * box->w * 2)); + eve_dl_write(BITMAP_LAYOUT(EVE_TEXTVGA, box->w * 2, text_h1)); + eve_dl_write(BITMAP_SIZE(EVE_NEAREST, EVE_BORDER, EVE_BORDER, box->w * box->ch_w, text_h1 * box->ch_h)); + eve_dl_write(BITMAP_SIZE_H(box->w * box->ch_w, text_h1 * box->ch_h)); + eve_dl_write(VERTEX2F(box->g.x, box->g.y)); + + if (text_h2) { + eve_dl_write(BITMAP_SOURCE(box->mem_addr)); + eve_dl_write(BITMAP_LAYOUT(EVE_TEXTVGA, box->w * 2, text_h2)); + eve_dl_write(BITMAP_SIZE(EVE_NEAREST, EVE_BORDER, EVE_BORDER, box->w * box->ch_w, text_h2 * box->ch_h)); + eve_dl_write(BITMAP_SIZE_H(box->w * box->ch_w, text_h2 * box->ch_h)); + eve_dl_write(VERTEX2F(box->g.x, box->g.y + text_h1 * box->ch_h)); + } else { + eve_dl_write(NOP()); + eve_dl_write(NOP()); + eve_dl_write(NOP()); + eve_dl_write(NOP()); + eve_dl_write(NOP()); + } + + eve_dl_write(END()); + eve_dl_end(); +} + +void eve_text_scroll0(EVEText *box) { + if (box->line_top >= 0) { + box->line_top = -1; + box->line_top0 = -1; + eve_text_update(box); + } +} + +int eve_text_touch(EVEText *box, EVETouch *touch, uint16_t evt, uint8_t tag0) { + evt = eve_touch_evt(touch, evt, tag0, box->tag, 1); + if (touch && evt) { + if ((evt & EVE_TOUCH_ETYPE_TRACK_START) && (box->line_top < 0)) { + box->line_top = box->line0; + box->line_top0 = box->line0; + } + if ((evt & EVE_TOUCH_ETYPE_TRACK) && (box->line_top0 >=0)) { + int line = LINE_IDX_ADD(box->line_top0, (touch->y0 - touch->y) / box->ch_h, box->line_size); + if (LINE_IDX_LTE(line, box->line0, box->line_size, box->h)) { + box->line_top = line; + eve_text_update(box); + } + } + if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) { + box->line_top0 = box->line_top; + } + + return 1; + } + + return 0; +} + +uint8_t eve_text_draw(EVEText *box, uint8_t tag) { + eve_cmd_dl(SAVE_CONTEXT()); + box->tag = tag; + if (tag != EVE_NOTAG) { + eve_cmd_dl(TAG(tag)); + eve_touch_set_opt(tag, EVE_TOUCH_OPT_TRACK | EVE_TOUCH_OPT_TRACK_EXT_Y); + tag++; + } + eve_cmd(CMD_APPEND, "ww", box->mem_addr + box->w * 2 * box->line_size, box->dl_size * 4); + eve_cmd_dl(RESTORE_CONTEXT()); + + return tag; +} + +void eve_text_putc(EVEText *box, int c) { + int line_c, line_n; + + switch (c) { + case '\b': + eve_text_backspace(box); + break; + case '\r': + case '\n': + eve_text_newline(box); + break; + default: + line_c = box->ch_idx / 2 / box->w; + + eve_write16(box->mem_addr + box->ch_idx, 0x0200 | (c & 0xff)); + box->ch_idx = (box->ch_idx + 2) % (box->line_size * box->w * 2); + eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR); + + line_n = box->ch_idx / 2 / box->w; + if ((line_c != line_n) && (LINE_IDX_DIFF(line_n, box->line0, box->line_size) == box->h)) scroll1(box); + break; + } +} + +void eve_text_backspace(EVEText *box) { + uint16_t c; + + eve_write16(box->mem_addr + box->ch_idx, 0); + box->ch_idx = (box->ch_idx - 2) % (box->line_size * box->w * 2); + if (eve_read16(box->mem_addr + box->ch_idx) == 0) { + box->ch_idx = (box->ch_idx + 2) % (box->line_size * box->w * 2); + } + eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR); +} + +void eve_text_newline(EVEText *box) { + int line = (box->ch_idx / 2 / box->w + 1) % box->line_size; + + eve_write16(box->mem_addr + box->ch_idx, 0); + box->ch_idx = line * box->w * 2; + if (LINE_IDX_DIFF(line, box->line0, box->line_size) == box->h) scroll1(box); + eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR); +} + +void eve_text_puts(EVEText *box, char *s) { + while (*s) { + eve_text_putc(box, *s); + s++; + } +} |