STM32-Player/User/GameEngine/GE_Draw.c

#include "sys.h"

#include "lcd.h"
#include "GameEngine.h"

#include "GE_Draw.h"

/**************************************** ˽<>к<EFBFBD><D0BA><EFBFBD> ****************************************/

void GE_Draw_SetWinAbs(uint16_t x_start, uint16_t y_start, uint16_t x_end, uint16_t y_end);
void GE_Draw_SetWin(uint16_t x, uint16_t y, uint16_t width, uint16_t height);

/*****************************************************************************************/

_ge_draw_set_private ge_draw_set_private;

_ge_draw_pic_set ge_draw_pic_set;

/**
  * @brief  <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD> GE_Draw
  */
void GE_Draw_Init(void)
{
    //˽<>б<EFBFBD><D0B1><EFBFBD>
    ge_draw_set_private.x_start = 0;
    ge_draw_set_private.y_start = 0;
    ge_draw_set_private.x_end = LCD_WIDTH - 1;
    ge_draw_set_private.y_end = LCD_HEIGHT - 1;

    //<2F><><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC><EFBFBD><EFBFBD>
    ge_draw_pic_set.is_reverse = FALSE;
    ge_draw_pic_set.pos_mode = UP_LEFT;
}

/**
  * @brief  ʹ<EFBFBD>þ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>
  * @param  x_start: 0~319
  * @param  y_start: 0~239<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @param  x_end: 0~319
  * @param  y_end: 0~239<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  */
void GE_Draw_SetWinAbs(uint16_t x_start, uint16_t y_start, uint16_t x_end, uint16_t y_end)
{
    if (x_end == ge_draw_set_private.x_end && y_end == ge_draw_set_private.y_end)
    {
        if (x_start == ge_draw_set_private.x_start && y_start == ge_draw_set_private.y_start)
        {
            return;
        }
        else
        {
            ge_draw_set_private.x_start = x_start;
            ge_draw_set_private.y_start = y_start;

            LCD_SendCmdData16Bits(LCD_CMD_CASET, x_start);
            LCD_SendCmdData16Bits(LCD_CMD_PASET, y_start);
        }
    }
    else
    {
        ge_draw_set_private.x_start = x_start;
        ge_draw_set_private.y_start = y_start;
        ge_draw_set_private.x_end = x_end;
        ge_draw_set_private.y_end = y_end;

        LCD_SendCmdData32Bits(LCD_CMD_CASET, (x_start << 16) | x_end);
        LCD_SendCmdData32Bits(LCD_CMD_PASET, (y_start << 16) | y_end);
    }
}

/**
  * @brief  ʹ<EFBFBD>ô<EFBFBD><EFBFBD>ڴ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>
  * @param  x: 0~319
  * @param  y: 0~239<EFBFBD><EFBFBD>x y Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @param  width: <EFBFBD><EFBFBD><EFBFBD>ڿ<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0
  * @param  height: <EFBFBD><EFBFBD><EFBFBD>ڸ߶ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0
  */
void GE_Draw_SetWin(uint16_t x, uint16_t y, uint16_t width, uint16_t height)
{
    GE_Draw_SetWinAbs(x, y, x + width - 1, y + height - 1);
}

/**
  * @brief  <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @param  color: <EFBFBD><EFBFBD>ɫ
  */
void GE_Draw_ClrAll(uint16_t color)
{
    GE_Draw_Fill(0, 0, LCD_WIDTH, LCD_HEIGHT, color);
}

/**
  * @brief  <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȽ<EFBFBD><EFBFBD><EFBFBD>
  * @param  x: 0~319
  * @param  y: 0~239
  * @param  width: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>
  * @param  height: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>
  * @param  color: <EFBFBD><EFBFBD>ɫ
  */
void GE_Draw_Fill(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color)
{
    GE_Draw_SetWin(x, y, width, height);

    uint32_t data16_count = width * height;

    LCD_RAM_Wr;
    LCD_Data_Mode_On;

    for (uint32_t i = 0; i < data16_count; i++)
        SPI2_Write16Bits(color);
}

/**
  * @brief  <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD>ĵ<EFBFBD>
  * @param  x: 0~319
  * @param  y: 0~239
  * @param  color: <EFBFBD><EFBFBD>ɫ
  */
void GE_Draw_Point(uint16_t x, uint16_t y, uint16_t color)
{
    if (x < 0 || x > LCD_WIDTH - 1 || y < 0 || y > LCD_HEIGHT - 1)
        return;

    GE_Draw_SetWinAbs(x, y, LCD_WIDTH - 1, LCD_HEIGHT - 1);
    LCD_SendCmdData16Bits(LCD_CMD_RAMWR, color);
}

/**
  * @brief  <EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @param  x1: 0~319
  * @param  y1: 0~239
  * @param  x2: 0~319
  * @param  y3: 0~239
  * @param  color: <EFBFBD><EFBFBD>ɫ
  */
void GE_Draw_Line(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color)
{
    //ʹ<><CAB9> Bresenham <20>㷨
    int16_t dx = abs(x1 - x0);
    int8_t sx = x0 < x1 ? 1 : -1;
    int16_t dy = -abs(y1 - y0);
    int8_t sy = y0 < y1 ? 1 : -1;
    int16_t err = dx + dy, e2;

    while (1)
    {
        GE_Draw_Point(x0, y0, color);

        if (x0 == x1 && y0 == y1)
            break;
        e2 = 2 * err;
        if (e2 >= dy)
        {
            err += dy;
            x0 += sx;
        }
        if (e2 <= dx)
        {
            err += dx;
            y0 += sy;
        }
    }
}

/**
  * @brief  <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD>ƾ<EFBFBD><EFBFBD>α߿<EFBFBD>
  * @param  x: 0~319
  * @param  y: 0~239
  * @param  width: <EFBFBD><EFBFBD><EFBFBD>εĿ<EFBFBD>
  * @param  height: <EFBFBD><EFBFBD><EFBFBD>εĸ<EFBFBD>
  * @param  color: <EFBFBD><EFBFBD>ɫ
  */
void GE_Draw_Rectangle(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color)
{
    uint16_t i;

    for (i = 0; i < width; i++)
    {
        GE_Draw_Point(x + i, y, color);
        GE_Draw_Point(x + i, y + height - 1, color);
    }

    for (i = 0; i < height; i++)
    {
        GE_Draw_Point(x, y + i, color);
        GE_Draw_Point(x + width - 1, y + i, color);
    }
}

/**
  * @brief  <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ
  * @param  xm: 0~319
  * @param  ym: 0~239
  * @param  r: Բ<EFBFBD>İ뾶
  * @param  color: <EFBFBD><EFBFBD>ɫ
  */
void GE_Draw_Circle(uint16_t xm, uint16_t ym, uint16_t r, uint16_t color)
{
    int16_t x = -r, y = 0, err = 2 - 2 * r, rm = r;

    do
    {
        GE_Draw_Point(xm - x, ym + y, color);
        GE_Draw_Point(xm - y, ym - x, color);
        GE_Draw_Point(xm + x, ym - y, color);
        GE_Draw_Point(xm + y, ym + x, color);
        rm = err;
        if (rm > x)
            err += ++x * 2 + 1;
        if (rm <= y)
            err += ++y * 2 + 1;
    } while (x < 0);
}

/**
  * @brief  <EFBFBD><EFBFBD><EFBFBD>ƾ<EFBFBD><EFBFBD><EFBFBD>ͼƬ<EFBFBD><EFBFBD>ͼƬΪ const unsigned char <EFBFBD><EFBFBD><EFBFBD>飬4096 ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>ͷ
  * @param  x: 0~319
  * @param  y: 0~239
  * @param  is_reverse: TRUE Ϊ<EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫģʽ<EFBFBD><EFBFBD>ˢ<EFBFBD>½<EFBFBD><EFBFBD><EFBFBD>
  * @param  pos_mode: UP_LEFT Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻǿ<EFBFBD>ʼ<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>MID Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ
  * @param  pic: ָ<EFBFBD><EFBFBD>ͼƬ
  * @param  width: ͼƬ<EFBFBD>Ŀ<EFBFBD>
  * @param  height: ͼƬ<EFBFBD>ĸ<EFBFBD>
  */
void GE_Draw_Pic(
    uint16_t x,
    uint16_t y,
    uint8_t is_reverse,
    uint8_t pos_mode,
    const unsigned char *pic,
    uint16_t width,
    uint16_t height)
{
    if (pos_mode == UP_LEFT)
        GE_Draw_SetWin(x, y, width, height);
    else
        GE_Draw_SetWin(x - width / 2, y - height / 2, width, height);

    if (is_reverse == TRUE) //<2F><>ɫģʽ
    {
        uint16_t data16_temp;
        uint32_t data8_count = width * height * 2;

        LCD_RAM_Wr;
        LCD_Data_Mode_On;

        for (uint32_t i = 0; i < data8_count; i += 2)
        {
            data16_temp = 0xffff - (((uint16_t)pic[i] << 8) | pic[i + 1]); //<2F><>ɫ
            SPI2_Write16Bits(data16_temp);
        }
    }
    else //<2F>Ƿ<EFBFBD>ɫģʽ
    {
        LCD_SendCmdDataBytes(LCD_CMD_RAMWR, (uint8_t *)pic, width * height * 2);
    }
}

/**
  * @brief  <EFBFBD><EFBFBD><EFBFBD>ƾ<EFBFBD><EFBFBD><EFBFBD>ͼƬ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @param  x: 0~319
  * @param  y: 0~239
  * @param  pic: ָ<EFBFBD><EFBFBD>ͼƬ
  * @param  width: ͼƬ<EFBFBD>Ŀ<EFBFBD>
  * @param  height: ͼƬ<EFBFBD>ĸ<EFBFBD>
  */
void GE_Draw_Pic_WithSet(uint16_t x, uint16_t y, const unsigned char *pic, uint16_t width, uint16_t height)
{
    GE_Draw_Pic(
        x,
        y,
        ge_draw_pic_set.is_reverse,
        ge_draw_pic_set.pos_mode,
        pic,
        width,
        height);
}