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Diffstat (limited to 'fw/fe310/eos/eve/eve_text.c')
-rw-r--r--fw/fe310/eos/eve/eve_text.c199
1 files changed, 199 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..2ad4f6f
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_text.c
@@ -0,0 +1,199 @@
+#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);
+ box->dirty = 1;
+}
+
+void eve_text_init(EVEText *box, EVERect *g, uint16_t w, uint16_t h, uint8_t tag, 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 = tag;
+ 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 = 17;
+ 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_touch_set_opt(tag, EVE_TOUCH_OPT_TRACK);
+
+ 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;
+}
+
+int eve_text_touch(EVEText *box, uint8_t tag0, int touch_idx) {
+ EVETouch *t;
+ uint16_t evt;
+ int ret = 0;
+
+ t = eve_touch_evt(tag0, touch_idx, box->tag, 1, &evt);
+ if (t && 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, (t->y0 - t->y) / box->ch_h, box->line_size);
+ if (LINE_IDX_LTE(line, box->line0, box->line_size, box->h)) {
+ box->line_top = line;
+ box->dirty = 1;
+ }
+ }
+ if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
+ box->line_top0 = box->line_top;
+ }
+ ret = 1;
+ } else if (box->line_top >= 0) {
+ box->line_top = -1;
+ box->line_top0 = -1;
+ box->dirty = 1;
+ }
+ return ret;
+}
+
+uint8_t eve_text_draw(EVEText *box) {
+ if (box->dirty) {
+ eve_text_update(box);
+ box->dirty = 0;
+ }
+ eve_cmd(CMD_APPEND, "ww", box->mem_addr + box->w * 2 * box->line_size, box->dl_size * 4);
+ return box->tag;
+}
+
+int 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;
+ }
+ return EVE_OK;
+}
+
+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);
+
+ eve_dl_write(SAVE_CONTEXT());
+ eve_dl_write(BEGIN(EVE_BITMAPS));
+ eve_dl_write(TAG(box->tag));
+ 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_write(RESTORE_CONTEXT());
+}
+
+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_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);
+}
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