new eve dir

1 files changed, 185 insertions, 0 deletions

diff --git a/code/fe310/eos/eve/eve_text.c b/code/fe310/eos/eve/eve_text.c
new file mode 100644
index 0000000..9470530
--- /dev/null
+++ b/code/fe310/eos/eve/eve_text.c
@@ -0,0 +1,185 @@
+#include "eos.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, uint16_t x, uint16_t y, uint16_t w, uint16_t h, double scale_x, double scale_y, uint8_t tag, uint16_t line_size, uint32_t mem_addr, uint32_t *mem_next) {
+    box->x = x;
+    box->y = y;
+    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) {
+    uint16_t evt;
+    EVETouch *t = eve_touch_evt(tag0, touch_idx, box->tag, box->tag, &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;
+        }
+        return 1;
+    } else if (box->line_top >= 0) {
+        box->line_top = -1;
+        box->line_top0 = -1;
+        box->dirty = 1;
+    }
+    return 0;
+}
+
+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 EOS_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->x, box->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->x, box->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);
+}
\ No newline at end of file