restructuring

F1:F103/chronometer_v3/screen.h

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+/*
+ * This file is part of the LED_screen project.
+ * Copyright 2019 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#ifndef SCREEN_H__
+#define SCREEN_H__
+
+#include <stdint.h>
+
+// display size in px
+// PANEL_WIDTH is width of one panel
+#define PANEL_WIDTH         32
+// SCREEN_WIDTH is total screen width
+#define SCREEN_WIDTH        64
+#define SCREEN_HEIGHT       16
+#define SCREENBUF_SZ        (SCREEN_WIDTH*SCREEN_HEIGHT/8)
+#define DMABUF_SZ           (SCREENBUF_SZ/4)
+
+// pause to show a quater of screen - 10ms (25Hz framerate)
+#define SCREEN_PAUSE        2
+
+// screen is positive (1->on, 0->off)
+#define SCREEN_IS_NEGATIVE  1
+
+void FillScreen(uint8_t setclear);
+void DrawPix(int16_t X, int16_t Y, uint8_t pix);
+uint8_t DrawCharAt(int16_t X, int16_t Y, uint8_t Char);
+void ConvertScreenBuf();
+uint8_t PutStringAt(int16_t X, int16_t Y, const char *str);
+uint8_t *getScreenBuf();
+uint8_t *getDmaBuf(uint8_t N);
+void process_screen();
+void ShowScreen();
+void ScreenOFF();
+uint16_t GetStrWidth(const char *str);
+
+void setdmabuf0(uint8_t pattern, uint8_t N);
+
+#endif // SCREEN_H__