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drawfb.c
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drawfb.c
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/*345678901234567890123456789012345678901234567890123456789012345678901234567890
* 10 20 30 40 50 60 70 80
*/
#include "base.h"
#include "drawui.h"
#include "drawfb.h"
#include <termios.h> //串口头文件
#include <fcntl.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <linux/fb.h>
#define MEM_DEVICE "/dev/mem"
#define TTY_DEVICE "/dev/ttyS1"
#define TTY_DEVICE1 "/dev/ttyS0"
#define COLOR_STEP 32 /* 4 8 16 32 64*/
#define COLOR_SHIFT 5 /* 2 3 4 5 6*/
#define MIN_DRAW_FAN_ANGLE_STEP 3
#define MAX_GROUP_QTY 8
#define MAX_BEAM_QTY 256
typedef struct _Point
{
int x;
int y;
}POINT, *P_POINT;
typedef struct _VERTICAL_LINE
{
int start;
int end ;
}VERTICAL_LINE, *P_VERTICAL_LINE;
static POINT CurrentLine_top [MAX_GROUP_QTY][MAX_BEAM_QTY];
static POINT CurrentLine_bottom [MAX_GROUP_QTY][MAX_BEAM_QTY];
static VERTICAL_LINE AScanDrawRange[MAX_GROUP_QTY][MAX_BEAM_QTY] ;
static gchar* pDraw[MAX_GROUP_QTY] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}; // 是否扇形区域
static guchar* pAngleZoom[MAX_GROUP_QTY] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}; // 处于哪个角度区间
static guchar* pDrawRate[MAX_GROUP_QTY] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}; // 填充比例
static gint* pDataNo[MAX_GROUP_QTY] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}; // 数据在数组中的列号
int calc_line_position (gdouble startAngle, gdouble endAngle, gdouble stepAngle, double StartFocusDepth,
double FocusEnd, double JunctionOffset, int DataLength, int width, int height, guchar group)
{
// 实际坐标
gdouble xLeftmost ; // 扇形 最左点坐标
gdouble xRightmost ; // 扇形 最右点坐标
gdouble yTopmost ; // 最上点
gdouble yBottonmost ; // 最下点
double FocusRange ;
// 起始\终止\步进 角度
gdouble a1, a2 , a3 ;
int RowNo ;
//
// 实际窗口 宽 高
gdouble tempW , tempH ;
// 实际窗口 入射点坐标
gdouble xOrg , yOrg ;
// 拉伸窗口 入射点坐标
gdouble xOrgS, yOrgS ;
// 拉伸窗口 信号起 止半径
gdouble xScale ;
gdouble yScale ;
int i ;
gdouble tempy ;
double TempLength ;
double templength ;
// 为全局指针分配内存
a1 = startAngle * G_PI/180.0 ;
a2 = endAngle * G_PI/180.0 ;
a3 = stepAngle * G_PI/180.0 ;
// 扫描数据列数
RowNo = (int) ((endAngle-startAngle) / stepAngle +1) ;
// calculate the fan range in real coordinate
FocusRange = FocusEnd - StartFocusDepth ;
yBottonmost = JunctionOffset + FocusEnd ;
if( a1 * a2 <= 0)
{
xLeftmost = JunctionOffset * tan(a1) + (StartFocusDepth + FocusRange)*sin(a1) ;
xRightmost = JunctionOffset * tan(a2) + (StartFocusDepth + FocusRange)*sin(a2) ;
if( fabs(a2) > fabs(a1) )
yTopmost = JunctionOffset + StartFocusDepth * cos(a2) ;
else
yTopmost = JunctionOffset + StartFocusDepth * cos(-a1) ;
TempLength = StartFocusDepth + FocusRange ;
templength = StartFocusDepth ;
}
else if (a1 < 0 && a2 < 0)
{
yTopmost = JunctionOffset + (StartFocusDepth / cos(-a2)) * cos(-a1) ;
xLeftmost = JunctionOffset * tan(a1) + sin(a1) * (StartFocusDepth + FocusRange)/cos(a2) ;
xRightmost = (JunctionOffset + StartFocusDepth) * tan(a2) ;
TempLength = (StartFocusDepth + FocusRange) / cos(-a2) ;
templength = StartFocusDepth / cos(-a2) ;
}
else if (a1 > 0 && a2 > 0)
{
yTopmost = JunctionOffset + (StartFocusDepth / cos(a1)) * cos(a2) ;
xLeftmost = (JunctionOffset + StartFocusDepth) * tan(a1) ;
xRightmost = JunctionOffset * tan(a2) + sin(a2) * (StartFocusDepth + FocusRange)/cos(a1) ;
TempLength = (StartFocusDepth + FocusRange) / cos(a1) ;
templength = StartFocusDepth / cos (a1) ;
}
// 波型的实际宽度和高度
// 虚拟发射点坐标
tempW = (gdouble)(xRightmost - xLeftmost) ;
tempH = (gdouble)(yBottonmost- yTopmost) ;
xOrg = 0 - xLeftmost ;
yOrg = 0 - yTopmost ;
// 实际尺寸 转 显示尺寸 比例
xScale = width/tempW ;
yScale = height/tempH ;
// 显示坐标系中 虚拟发射点坐标
xOrgS = xOrg*xScale ;
yOrgS = yOrg*yScale ;
//求每一列波型的 比例尺
//和拉伸后显示的扫描角度
for(i = 0; i< RowNo ; i++)
{
tempy = yScale * (cos(a1+i*a3)*(JunctionOffset/cos(a1+i*a3)+TempLength)+yOrg) ;
//****************************************************************************
//keep the location for angle line drawing
AScanDrawRange[group][i].end = (int)tempy ;
tempy = yScale * (cos(a1+i*a3)*(JunctionOffset/cos(a1+i*a3)+templength)+yOrg) ;
//****************************************************************************
//keep the location for angle line drawing
AScanDrawRange[group][i].start = (int)tempy ;
//****************************************************************************
}
return 0;
}
static int fd_fb;
struct fb_var_screeninfo vinfo;
static gushort all_col_16[] =
{
0x001f, /* 蓝色 */
0x03e0, /* 绿色 */
0xf800, /* 红色 */
0xffe0, /* 黄色 */
0x0000, /* 黑色 */
0xffff /* 白色 */
};
static gfloat HEIGHT_TABLE[256]=
{
1.000000,0.996078,0.992157,0.988235,0.984314,0.980392,0.976471,0.972549,
0.968627,0.964706,0.960784,0.956863,0.952941,0.949020,0.945098,0.941176,
0.937255,0.933333,0.929412,0.925490,0.921569,0.917647,0.913725,0.909804,
0.905882,0.901961,0.898039,0.894118,0.890196,0.886275,0.882353,0.878431,
0.874510,0.870588,0.866667,0.862745,0.858824,0.854902,0.850980,0.847059,
0.843137,0.839216,0.835294,0.831373,0.827451,0.823529,0.819608,0.815686,
0.811765,0.807843,0.803922,0.800000,0.796078,0.792157,0.788235,0.784314,
0.780392,0.776471,0.772549,0.768627,0.764706,0.760784,0.756863,0.752941,
0.749020,0.745098,0.741176,0.737255,0.733333,0.729412,0.725490,0.721569,
0.717647,0.713725,0.709804,0.705882,0.701961,0.698039,0.694118,0.690196,
0.686275,0.682353,0.678431,0.674510,0.670588,0.666667,0.662745,0.658824,
0.654902,0.650980,0.647059,0.643137,0.639216,0.635294,0.631373,0.627451,
0.623529,0.619608,0.615686,0.611765,0.607843,0.603922,0.600000,0.596078,
0.592157,0.588235,0.584314,0.580392,0.576471,0.572549,0.568627,0.564706,
0.560784,0.556863,0.552941,0.549020,0.545098,0.541176,0.537255,0.533333,
0.529412,0.525490,0.521569,0.517647,0.513725,0.509804,0.505882,0.501961,
0.498039,0.494118,0.490196,0.486275,0.482353,0.478431,0.474510,0.470588,
0.466667,0.462745,0.458824,0.454902,0.450980,0.447059,0.443137,0.439216,
0.435294,0.431373,0.427451,0.423529,0.419608,0.415686,0.411765,0.407843,
0.403922,0.400000,0.396078,0.392157,0.388235,0.384314,0.380392,0.376471,
0.372549,0.368627,0.364706,0.360784,0.356863,0.352941,0.349020,0.345098,
0.341176,0.337255,0.333333,0.329412,0.325490,0.321569,0.317647,0.313725,
0.309804,0.305882,0.301961,0.298039,0.294118,0.290196,0.286275,0.282353,
0.278431,0.274510,0.270588,0.266667,0.262745,0.258824,0.254902,0.250980,
0.247059,0.243137,0.239216,0.235294,0.231373,0.227451,0.223529,0.219608,
0.215686,0.211765,0.207843,0.203922,0.200000,0.196078,0.192157,0.188235,
0.184314,0.180392,0.176471,0.172549,0.168627,0.164706,0.160784,0.156863,
0.152941,0.149020,0.145098,0.141176,0.137255,0.133333,0.129412,0.125490,
0.121569,0.117647,0.113725,0.109804,0.105882,0.101961,0.098039,0.094118,
0.090196,0.086275,0.082353,0.078431,0.074510,0.070588,0.066667,0.062745,
0.058824,0.054902,0.050980,0.047059,0.043137,0.039216,0.035294,0.031373,
0.027451,0.023529,0.019608,0.015686,0.011765,0.007843,0.003922,0.000000
};
void init_fb ()
{
if ((fd_fb = open(FB_DEVICE, O_RDWR)) == -1)
{
perror (FB_DEVICE);
return ;
}
TMP(fb1_addr) = (gushort *)
mmap(NULL, 2 * 1024 * 1024, PROT_READ | PROT_WRITE, MAP_SHARED, fd_fb, 0);
g_print ("fb1 video addr:%p %p", TMP(fb1_addr), TMP(virtual_add));
if (ioctl(fd_fb, FBIOGET_VSCREENINFO, &vinfo))
{
printf("Error reading variable information\n");
exit(3);
}
return ;
}
void init_mem ()
{
int fd_mem;
if ((fd_mem = open(MEM_DEVICE, O_RDWR | O_SYNC)) == -1)
{
perror (MEM_DEVICE);
return ;
}
TMP(dma_data_add) = (unsigned long int)
mmap(0, 16 * 1024 * 1024, PROT_READ | PROT_WRITE, MAP_SHARED, fd_mem, 0x8F000000);
g_print ("mem init\n");
return ;
}
void init_serial ()
{
struct termios newtermios;
pp->fd_key = open(TTY_DEVICE, O_RDWR | O_NOCTTY );
if (pp->fd_key < 0) {
perror(TTY_DEVICE);
return ;
}
bzero(&newtermios, sizeof(newtermios)); /* 清除结构体以放入新的序列埠设定值 */
tcgetattr(pp->fd_key, &newtermios);
newtermios.c_cc[VMIN] = 0;
newtermios.c_iflag = 0;
newtermios.c_oflag = 0;
newtermios.c_lflag = 0;
newtermios.c_cflag = B115200 | CS8 | PARENB | CLOCAL | CREAD;
if (tcsetattr(pp->fd_key, TCSANOW, &newtermios)) {
perror("tcsetattr error");
exit(1);
}
pp->fd_key1 = open(TTY_DEVICE1, O_RDWR | O_NOCTTY );
if (pp->fd_key1 < 0) {
perror(TTY_DEVICE1);
return ;
}
bzero(&newtermios, sizeof(newtermios)); /* 清除结构体以放入新的序列埠设定值 */
tcgetattr(pp->fd_key1, &newtermios);
newtermios.c_cc[VMIN] = 0;
newtermios.c_iflag = 0;
newtermios.c_oflag = 0;
newtermios.c_lflag = 0;
newtermios.c_cflag = B115200 | CS8 | PARENB | CLOCAL | CREAD;
if (tcsetattr(pp->fd_key1, TCSANOW, &newtermios)) {
perror("tcsetattr error");
exit(1);
}
return ;
}
static void compress_data (DOT_TYPE *source_data, DOT_TYPE *target_data,
gint qty1, gint qty2, guint rectify)
{
guint temp_1, temp_2, i, j;
for (i = 0; i < qty2; i++)
{
temp_2 = qty1 / qty2;
temp_1 = i * qty1 / qty2;
target_data[i] = source_data[temp_1];
for (j = 1; j < temp_2; j++) {
if (rectify == RF_WAVE) {
if (target_data[i] > 127) {
if (source_data[temp_1 + j] > target_data[i])
target_data[i] = source_data[temp_1 + j];
} else {
if (source_data[temp_1 + j] < target_data[i])
target_data[i] = source_data[temp_1 + j];
}
}
else
{
if (source_data[temp_1 + j] > target_data[i])
target_data[i] = source_data[temp_1 + j];
}
}
}
}
static void interpolation_data (DOT_TYPE *source_data, DOT_TYPE *target_data,
int qty1, int qty2)
{
int t1, t2, i, j;
if (qty1 == qty2)
memcpy ((void *)(target_data), (void *)(source_data), qty1 * sizeof(DOT_TYPE));
else
{
for (i = 0 ; i < qty1 - 1; i++)
{
for (t1 = i * qty2 / (qty1 - 1), t2 = (i + 1) * qty2 / (qty1 - 1), j = t1; j < t2; j++)
{
target_data[j] = (unsigned char)((int)(source_data[i]) +
((int)((source_data[i + 1]) - (int)(source_data[i])) * (j - t1) / (qty2 / (qty1 - 1))));
}
}
}
}
/* draw a dot on coordinate (x,y) 在 (x,y) 画点 */
inline void fbdot(gushort *p, gint x, gint y, gushort col)
{
*(p + FB_WIDTH*y + x) = col;
}
/*draw a line from coordinate(x,y1) to coordinate (x,y2) 画线(x,y1) 到 (x,y2)*/
void fbliney(gushort *p, gint x, gint y1, gint y2, gushort col)
{
gint yy1, yy2;
yy1 = MAX(y1, y2);
yy2 = MIN(y1, y2);
for (;yy2 < yy1 + 1; yy2++)
fbdot(p, x, yy2, col);
}
/*draw a line from coordinate(x1,y) to coordinate (x2,y) 画线(x1,y) 到 (x2,y)*/
void fblinex(gushort *p, gint y, gint x1, gint x2, gushort col)
{
gint xx1, xx2;
xx1 = MAX(x1, x2);
xx2 = MIN(x1, x2);
for (;xx2 < xx1 + 1; xx2++)
fbdot(p, xx2, y, col);
}
/*draw a line from coordinate(x1,y1) ro coordinate(x2,y2) 画线(x1,y1)到(x2,y2)*/
void fbline(gushort *p, gint x1, gint y1, gint x2, gint y2, gushort col)
{
int M, N, n, r, s, t;
if (x1 > x2)
{
M = x1 ; x1 = x2; x2 = M;
M = y1 ; y1 = y2; y2 = M;
}
/* 算出,两个点之间的x坐标的差值.*/
M = ABS(x1 - x2);
/* 算出,两个点之间的y坐标的差值.*/
N = ABS(y1 - y2);
/*如果两个点之间的x坐标间差值是0的话,则调用画竖线函数fbliney来完成*/
if (M == 0)
fbliney(p, x1, y1, y2, col);
/*如果两个点之间的y坐标间差值是0的话,则调用画横线函数fblinex来完成*/
if (N == 0)
fblinex(p, y1, x1, x2, col);
/*如果两个点之间的斜率是1的话*/
if ((M == N) && (M != 0))
{
for (t = x1; t <= x2; t++)
{
s = (t - x1) * (y2 - y1)/M+y1;
fbdot(p, t, s, col);
}
}
if ((M < N) && (M != 0))
{
for (t = x1, r = y1; t <= x2; t++)
{
s = (t - x1) * (y2 - y1)/M+y1;
fbliney(p, t, r, s, col);
r = s;
}
}
if ((M > N) && (N != 0))
{
if (y1 > y2)
{
n = x1; x1 = x2;x2 = n;
n = y1; y1 = y2;y2 = n;
}
for (t = y1, r = x1; t <= y2; t++)
{
s = (t - y1) * (x2 - x1)/N+x1;
fblinex(p, t, r, s, col);
r=s;
}
}
}
/* 画圆 */
void fbround(gushort *p, gint x0, gint y0, gint radius, gushort color)
{
unsigned int x,y,y1=0;
int s0,s1,s2;
x=x0+radius+1;
y=y0;
do
{
s0=abs((x-x0-1)*(x-x0-1)+(y-y0)*(y-y0)-radius*radius);
s1=abs((x-x0)*(x-x0)+(y-y0-1)*(y-y0-1)-radius*radius);
s2=abs((x-x0-1)*(x-x0-1)+(y-y0-1)*(y-y0-1)-radius*radius);
s0<=s1?(s0<=s2?x=x-1:(x=x-1,y=y-1)):(s1<=s2?y=y-1:(x=x-1,y=y-1));
if((x!=2*x0-x)&&(y1!=y))
{
fbdot(p,2*x0-x,y,color);
fbdot(p,x,2*y0-y,color);
// fbline(p,x-1,y,2*x0-x+1,y,color);
}
if((y!=2*y0-y)&&(y1!=y))
{
fbdot(p,x,y,color);
fbdot(p,2*x0-x,2*y0-y,color);
fbline(p,2*x0-x+1,2*y0-y,x-1,2*y0-y,color);
}
y1=y;
}while((x!=x0)&&(y!=(y0-radius)));
}
/* 画A扫描 data 原始数据 data1 data2 包络数据 */
void draw_a_scan (gushort *p, gint width, gint height,
DOT_TYPE *data, DOT_TYPE *data1, DOT_TYPE *data2,
gint xoffset, gint yoffset, guchar groupId)
{
gint i, min, max;
/* 清空这块显示区 背景暂定黑色 可以全部一起清空 */
// for (i = 0; i < height; i++)
// memset (p + FB_WIDTH * (i + yoffset) + xoffset, 0x0, width * 2 );
/* 画回波 */
for (i = 0; i < width - 1; i++)
{
min = MIN (height * HEIGHT_TABLE[data[i]], height * HEIGHT_TABLE[data[i + 1]]);
max = MAX (height * HEIGHT_TABLE[data[i]], height * HEIGHT_TABLE[data[i + 1]]);
if ((max - min) == 0)
{
if (min)
min -= 1;
else
max =+ 1;
}
// clear back ground
fbliney(p,
xoffset + i,
yoffset ,
yoffset + height,
0x0
);
#if 1
// draw line
fbliney(
p,
xoffset + i,
yoffset + min,
yoffset + max,
all_col_16[GROUP_VAL_POS(groupId, ascan_color)]
);
#endif
#if 0
/* 画包络 */
if (GROUP_VAL_POS(groupId, ascan_envelope))
{
/* 未完成 */
}
#endif
}
// fbline(p, xoffset+0, yoffset+0, xoffset+400, yoffset+400, 0x001f);
}
#if 0
/* draw a scan back up */
void draw_a_scan (gushort *p, gint width, gint height,
DOT_TYPE *data, DOT_TYPE *data1, DOT_TYPE *data2,
gint xoffset, gint yoffset, guchar groupId)
{
gint i;
/* 清空这块显示区 背景暂定黑色 可以全部一起清空 */
for (i = 0; i < height; i++)
memset (p + FB_WIDTH * (i + yoffset) + xoffset, 0x0, width * 2 );
/* 画回波 */
for (i = 0; i < width - 1; i++)
{
fbline (p,
xoffset + i,
yoffset + height * HEIGHT_TABLE[data[i]],
xoffset + i,
yoffset + height * HEIGHT_TABLE[data[i + 1]],
all_col_16[GROUP_VAL_POS(groupId, ascan_color)]);
/*
fbline (p,
xoffset + i,
yoffset + height * HEIGHT_TABLE[data[i]],
xoffset + i + 1,
yoffset + height * HEIGHT_TABLE[data[i + 1]],
all_col_16[GROUP_VAL_POS(groupId, ascan_color)]);
*/
/* 画包络 */
if (GROUP_VAL_POS(groupId, ascan_envelope))
{
/* 未完成 */
}
}
}
#endif
/* 画A扫描 data 原始数据 data1 data2 包络数据 */
void draw_a_scan_r (gushort *p, gint width, gint height,
DOT_TYPE *data, DOT_TYPE *data1, DOT_TYPE *data2,
gint xoffset, gint yoffset, gushort point_qty, guchar groupId, int start, int end)
{
gint i;
float scale ;
scale = point_qty / (end - start + 1.0) ;
/* 清空这块显示区 背景暂定黑色 可以全部一起清空 */
for (i = 0; i < height; i++)
memset (p + FB_WIDTH * (i + yoffset) + xoffset, 0x0, width * 2 );
/* 画回波 */
for (i = start; i < end ; i++)
{
fbline (p,
xoffset + width * HEIGHT_TABLE[255 - data[(int)(0.5 + (i-start) * scale)]],
yoffset + i,
xoffset + width * HEIGHT_TABLE[255 - data[(int)(0.5 + (i + 1 -start) * scale)]],
yoffset + i + 1,
all_col_16[GROUP_VAL_POS(groupId, ascan_color)]);
/* 画包络 */
if (GROUP_VAL_POS(groupId, ascan_envelope))
{
/* 未完成 */
}
}
}
/* 画B扫描 */
void draw_b_scan (gushort *p, gint width, gint height, DOT_TYPE *data, DOT_TYPE *data1,
gint xoffset, gint yoffset, guchar groupId, guchar mark)
{
gint i, j;
if (mark)
{
for (i = 0; i < height; i++)
memset (p + FB_WIDTH * (i + yoffset) + xoffset, 0x0, width * 2);
return ;
}
for (i = 0; i < height - 1; i++)
memcpy(p + (i + yoffset) * FB_WIDTH + xoffset, p + (i + yoffset + 1) * FB_WIDTH + xoffset, width * 2);
/* 编码器同步的时候怎么画 */
/*
memcpy(p + (yoffset) * FB_WIDTH, p + (yoffset + 1) * FB_WIDTH, FB_WIDTH * (height - 1) * 2);
*/
for (j = 0; j < width - 1; j++)
fbdot (p, xoffset + j, yoffset + height - 1, TMP(color_amp[data1[j]]));
#if 0
g_print ("xoffset = %d yoffset = %d width =%d height =%d \n",
xoffset, yoffset, width, height);
for (i = 0; i < height - 1; i++)
for (j = 0; j < width - 1; j++)
fbdot (p, xoffset + j, yoffset + i,
TMP(color_amp[data[i * width + j]]));
#endif
}
/* 画C扫描 */
void draw_c_scan (gushort *p, gint width, gint height, DOT_TYPE *data, DOT_TYPE *data1,
gint xoffset, gint yoffset, guchar groupId, guchar mark, guchar source)
{
gint i, j, k, offset;
gint beam_qty = TMP(beam_qty[groupId]);
if (mark)
{
for (i = 0; i < height; i++)
memset (p + FB_WIDTH * (i + yoffset) + xoffset, 0x0, width * 2);
return ;
}
// for (i = 0; i < height - 1; i++)
// memcpy(p + (i + yoffset) * FB_WIDTH, p + (i + yoffset + 1) * FB_WIDTH, FB_WIDTH * 2);
/* 编码器同步的时候怎么画 */
/* memcpy(p + (yoffset) * FB_WIDTH, p + (yoffset + 1) * FB_WIDTH, FB_WIDTH * (height - 1) * 2);*/
for (i = 0; i < height; i++)
for (j = width - 1; j > 0; j--)
{
*((p + (i + yoffset) * FB_WIDTH) + xoffset + j) =
*((p + (i + yoffset) * FB_WIDTH) + xoffset + j -1);
}
for (offset = 0, k = 0 ; k < get_current_group(pp->p_config); k++)
offset += TMP(beam_qty[k]);
/* 不同的C-source measure_data 后面取值不一样 */
if (height < beam_qty)
{
/* 压缩C扫描 */
for (i = 0 ; i < height ; i++)
{
fbdot (p, xoffset, yoffset + i,
TMP(color_amp[(int)((TMP(measure_data[offset + i * beam_qty / height][source + 1]) >> 24) / 40.95)]));
}
}
else if (height == beam_qty)
{
for (i = 0; i < beam_qty; i++)
fbdot (p, xoffset, yoffset + i,
TMP(color_amp[(int)((TMP(measure_data[offset + i][source + 1]) >> 24) / 40.95)]));
}
else if (height > beam_qty)
{
/* 拉伸 */
for (i = 0; i < beam_qty; i++)
for (j = 0; j <= height / beam_qty; j++)
fbdot (p, xoffset, yoffset +
i * height / beam_qty + j,
TMP(color_amp[(int)((TMP(measure_data[offset + i][source + 1]) >> 24) / 40.95)]));
}
}
///////////////////////////////
// CalcFanScan
// 功能 : 计算各个像素点的插值参数
// image : 像素缓存
// startAngle : 扫描起始角度
// endAngle : 扫描终止角度
// StartWave : 波形起始
// WaveLength : 波形长度
int CalcFanScan_new (gdouble startAngle, gdouble endAngle, gdouble stepAngle, double StartFocusDepth,
double FocusEnd, double JunctionOffset, int DataLength, int width, int height, guchar group)
{
gdouble xLeftmost ; // 扇形 最左点坐标
gdouble xRightmost ; // 扇形 最右点坐标
gdouble yTopmost ; // 最上点
gdouble yBottonmost ; // 最下点
double FocusRange ;
// 起始\终止\步进 角度
gdouble a1, a2 , a3 ;
int RowNo ;
//
gdouble _a3 ;
int _RowNo ;
// 实际窗口 宽 高
gdouble tempW , tempH ;
// 实际窗口 入射点坐标
gdouble xOrg , yOrg ;
// 拉伸窗口 入射点坐标
gdouble xOrgS, yOrgS ;
// 拉伸窗口 信号起 止半径
gdouble startWaveS , endWaveS ;
gdouble xxx , yyy ;
gdouble tLength ;
gdouble xScale ;
gdouble yScale ;
int i , j ;
gdouble* pScales = NULL ;
gdouble* pScalesAngle = NULL ;
gdouble* _pScalesAngle= NULL ;
gdouble tempx, tempy ;
gdouble tempScale ;
gdouble tAngle ;
int iAngle ;
double TempLength ;
double templength ;
double BeamStartLength[256] ;
double BeamEndLength[256] ;
// 为全局指针分配内存
if(pDraw[group] != NULL) { free(pDraw[group]); pDraw[group] = NULL ;}
if(pAngleZoom[group] != NULL) { free(pAngleZoom[group]); pAngleZoom[group] = NULL ;}
if(pDrawRate[group] != NULL) { free(pDrawRate[group]); pDrawRate[group] = NULL ;}
if(pDataNo[group] != NULL) { free(pDataNo[group]); pDataNo[group] = NULL ;}
pDraw[group] = (char*) malloc (width*height) ;
pAngleZoom[group] = (unsigned char*)malloc(width*height) ;
pDrawRate[group] = (unsigned char*)malloc(width*height) ;
pDataNo[group] = (int*) malloc(sizeof(int)*width*height) ;
a1 = startAngle * G_PI/180.0 ;
a2 = endAngle * G_PI/180.0 ;
a3 = stepAngle * G_PI/180.0 ;
_a3 = MIN_DRAW_FAN_ANGLE_STEP * G_PI/180.0 ;
// 扫描数据列数
RowNo = (int) ((endAngle-startAngle) / stepAngle +1) ;
_RowNo= (int) ((endAngle-startAngle) / MIN_DRAW_FAN_ANGLE_STEP + 1) ;
// 临时比例队列
pScales = (gdouble*)malloc(sizeof(gdouble)*RowNo) ;
pScalesAngle = (gdouble*)malloc(sizeof(gdouble)*RowNo) ;
// calculate the fan range in real coordinate
FocusRange = FocusEnd - StartFocusDepth ;
yBottonmost = JunctionOffset + FocusEnd ;
if( a1 * a2 <= 0)
{
xLeftmost = JunctionOffset * tan(a1) + (StartFocusDepth + FocusRange)*sin(a1) ;
xRightmost = JunctionOffset * tan(a2) + (StartFocusDepth + FocusRange)*sin(a2) ;
if( fabs(a2) > fabs(a1) )
yTopmost = JunctionOffset + StartFocusDepth * cos(a2) ;
else
yTopmost = JunctionOffset + StartFocusDepth * cos(-a1) ;
TempLength = StartFocusDepth + FocusRange ;
templength = StartFocusDepth ;
}
else if (a1 < 0 && a2 < 0)
{
yTopmost = JunctionOffset + (StartFocusDepth / cos(-a2)) * cos(-a1) ;
xLeftmost = JunctionOffset * tan(a1) + sin(a1) * (StartFocusDepth + FocusRange)/cos(a2) ;
xRightmost = (JunctionOffset + StartFocusDepth) * tan(a2) ;
TempLength = (StartFocusDepth + FocusRange) / cos(-a2) ;
templength = StartFocusDepth / cos(-a2) ;
}
else if (a1 > 0 && a2 > 0)
{
yTopmost = JunctionOffset + (StartFocusDepth / cos(a1)) * cos(a2) ;
xLeftmost = (JunctionOffset + StartFocusDepth) * tan(a1) ;
xRightmost = JunctionOffset * tan(a2) + sin(a2) * (StartFocusDepth + FocusRange)/cos(a1) ;
TempLength = (StartFocusDepth + FocusRange) / cos(a1) ;
templength = StartFocusDepth / cos (a1) ;
}
// 波型的实际宽度和高度
// 虚拟发射点坐标
tempW = (gdouble)(xRightmost - xLeftmost) ;
tempH = (gdouble)(yBottonmost- yTopmost) ;
xOrg = 0 - xLeftmost ;
yOrg = 0 - yTopmost ;
// 实际尺寸 转 显示尺寸 比例
xScale = width/tempW ;
yScale = height/tempH ;
// 显示坐标系中 虚拟发射点坐标
xOrgS = xOrg*xScale ;
yOrgS = yOrg*yScale ;
//求每一列波型的 比例尺
//和拉伸后显示的扫描角度
for(i = 0; i< RowNo ; i++)
{
tempx = xScale * (sin(a1+i*a3)*(JunctionOffset/cos(a1+i*a3)+TempLength)+xOrg) ;
tempy = yScale * (cos(a1+i*a3)*(JunctionOffset/cos(a1+i*a3)+TempLength)+yOrg) ;
//****************************************************************************
//keep the location for angle line drawing
CurrentLine_bottom[group][i].x = (int)tempx ;
CurrentLine_bottom[group][i].y = (int)tempy ;
//****************************************************************************
tempx = tempx - xOrgS ;
tempy = tempy - yOrgS ;
if(tempy != 0)
pScalesAngle[i] = atan(tempx/tempy) ;
else pScalesAngle[i] = tempx>0 ? G_PI/2.0 : -G_PI/2.0 ;
pScales[i] = sqrt(tempx*tempx+tempy*tempy)/(JunctionOffset/cos(a1+i*a3)+TempLength) ;
BeamEndLength[i] = sqrt(tempx*tempx+tempy*tempy) ;
tempx = xScale * (sin(a1+i*a3)*(JunctionOffset/cos(a1+i*a3)+templength)+xOrg) ;
tempy = yScale * (cos(a1+i*a3)*(JunctionOffset/cos(a1+i*a3)+templength)+yOrg) ;
//****************************************************************************
//keep the location for angle line drawing
CurrentLine_top[group][i].x = (int)tempx ;
CurrentLine_top[group][i].y = (int)tempy ;
//****************************************************************************
tempx = tempx - xOrgS ;
tempy = tempy - yOrgS ;
BeamStartLength[i] = sqrt(tempx*tempx+tempy*tempy) ;
}
// 当最小 步进角度 小于 MIN_DRAW_FAN_ANGLE_STEP 的时候
// 取 MIN_DRAW_FAN_ANGLE_STEP 为最小步进角度
// 实现 各个扇区 平稳过度 美观
if( stepAngle > MIN_DRAW_FAN_ANGLE_STEP )
{
free( pScales);
pScales = (gdouble*) malloc( sizeof(gdouble) * _RowNo ) ;
_pScalesAngle = ( gdouble* ) malloc( sizeof( gdouble) * _RowNo) ;
for(i = 0; i< _RowNo ; i++)
{
tempx = xScale * (sin(a1+i*_a3)*(JunctionOffset/cos(a1+i*_a3)+TempLength)+xOrg) ;
tempy = yScale * (cos(a1+i*_a3)*(JunctionOffset/cos(a1+i*_a3)+TempLength)+yOrg) ;
tempx = tempx - xOrgS ;
tempy = tempy - yOrgS ;
if(tempy != 0)
_pScalesAngle[i] = atan(tempx/tempy) ;
else pScalesAngle[i] = tempx>0 ? G_PI/2.0 : -G_PI/2.0 ;
pScales[i] = sqrt(tempx*tempx+tempy*tempy)/(JunctionOffset/cos(a1+i*_a3)+TempLength) ;
BeamEndLength[i] = sqrt(tempx*tempx+tempy*tempy) ;
tempx = xScale * (sin(a1+i*_a3)*(JunctionOffset/cos(a1+i*_a3)+templength)+xOrg) ;
tempy = yScale * (cos(a1+i*_a3)*(JunctionOffset/cos(a1+i*_a3)+templength)+yOrg) ;
tempx = tempx - xOrgS ;
tempy = tempy - yOrgS ;
BeamStartLength[i] = sqrt(tempx*tempx+tempy*tempy) ;
}
_pScalesAngle[_RowNo - 1] = pScalesAngle[ RowNo - 1] ;
}
a1 = pScalesAngle[0] ;
a2 = pScalesAngle[RowNo -1] ;
for(i = 0 ; i< height ; i++)
{
for(j = 0; j< width; j++)
{
xxx = j-xOrgS ;
yyy = i-yOrgS ;
tLength = sqrt(xxx*xxx + yyy*yyy) ;
tAngle = asin(xxx/tLength) ;
if(tAngle > a2|| tAngle < a1)
{ pDraw[group][i*width+ j] = 0; continue ;}
iAngle = 0 ;
while(tAngle>=pScalesAngle[iAngle]&&tAngle<a2)
{
iAngle++ ;
}
iAngle-- ;
pAngleZoom[group][i*width+j] = iAngle ;
tempScale = (tAngle - pScalesAngle[iAngle])/(pScalesAngle[iAngle+1] - pScalesAngle[iAngle]) ;
if(tempScale > 1) tempScale = 1 ;
pDrawRate[group][i*width+j] = (unsigned char)( tempScale * COLOR_STEP ) ;
if(stepAngle <= MIN_DRAW_FAN_ANGLE_STEP)
{
startWaveS = BeamStartLength[iAngle] * ( 1 - tempScale ) + BeamStartLength[iAngle+1] * tempScale ;
endWaveS = BeamEndLength[iAngle] * ( 1 - tempScale ) + BeamEndLength[iAngle+1] * tempScale ;
tempScale = pScales[iAngle]*(1-tempScale)+pScales[iAngle+1]*tempScale ;
pDataNo[group][i*width+j] = (int)( DataLength * (tLength-startWaveS)/(endWaveS - startWaveS) ) ;
if(tLength > endWaveS || tLength<startWaveS)
{
pDraw[group][i*width + j]= 0 ;
continue ;
}
pDraw[group][i*width + j]= 255 ;
}
else
{
iAngle = 0 ;
while(tAngle>=_pScalesAngle[iAngle] && tAngle<a2)
{
iAngle++ ;
}
iAngle-- ;
tempScale = (tAngle - _pScalesAngle[iAngle]) / (_pScalesAngle[iAngle+1] - _pScalesAngle[iAngle]) ;
if (tempScale > 1) tempScale = 1 ;
startWaveS = BeamStartLength[iAngle] * ( 1 - tempScale ) + BeamStartLength[iAngle+1] * tempScale ;
endWaveS = BeamEndLength[iAngle] * ( 1 - tempScale ) + BeamEndLength[iAngle+1] * tempScale ;
tempScale = pScales[iAngle] * (1- tempScale) + pScales[iAngle+1]*tempScale ;
pDataNo[group][i*width+j] = (int)(DataLength * (tLength-startWaveS)/(endWaveS - startWaveS) ) ;
if(tLength > endWaveS || tLength<startWaveS) { pDraw[group][ i * width + j]= 0 ; continue ;}
pDraw [group][i*width + j]= 255 ;
}
}
}
free(pScales);
free(pScalesAngle);
free(_pScalesAngle) ;
return 0;
}
#if 0
int CalcFanScan(gdouble startAngle, gdouble endAngle,
gdouble stepAngle, gint StartWave, gint endWave,
gint width, gint height)
{
// 实际坐标
gdouble xLeftmost ; // 扇形 最左点坐标
gdouble xRightmost ; // 扇形 最右点坐标
gdouble yTopmost ; // 最上点
gdouble yBottonmost ; // 最下点
// 起始\终止\步进 角度
gdouble a1, a2 , a3 ;
int RowNo ;
//
gdouble _a3 ;
int _RowNo ;
// 实际窗口 宽 高
gdouble tempW , tempH ;
// 实际窗口 入射点坐标
gdouble xOrg , yOrg ;
// 拉伸窗口 入射点坐标
gdouble xOrgS, yOrgS ;
// 拉伸窗口 信号起 止半径
gdouble startWaveS , endWaveS ;
gdouble xxx , yyy ;
gdouble tLength ;
gdouble xScale ;
gdouble yScale ;
int i , j ;
gdouble* pScales ;
gdouble* pScalesAngle ;
gdouble* _pScalesAngle ;
gdouble tempx, tempy ;
gdouble tempScale ;
gdouble tAngle ;
int iAngle ;
// 为全局指针分配内在
pDraw = (char*) malloc (width*height) ;
pAngleZoom = (unsigned char*)malloc(width*height) ;
pDrawRate = (unsigned char*)malloc(width*height) ;
pDataNo = (int*) malloc(sizeof(int)*width*height) ;
a1 = startAngle * G_PI/180.0 ;
a2 = endAngle * G_PI/180.0 ;
a3 = stepAngle * G_PI/180.0 ;
_a3 = MIN_DRAW_FAN_ANGLE_STEP * G_PI/180.0 ;
// 扫描数据列数
RowNo = (int) ((endAngle-startAngle) / stepAngle +1) ;
_RowNo= (int) ((endAngle-startAngle) / MIN_DRAW_FAN_ANGLE_STEP + 1) ;
// 临时比例队列
pScales = (gdouble*)malloc(sizeof(gdouble)*RowNo) ;
pScalesAngle = (gdouble*)malloc(sizeof(gdouble)*RowNo) ;
// calculate the fan in real coordinate
xLeftmost = a1 >= 0 ? sin(a1) * StartWave : sin(a1) * endWave ;
xRightmost = a2 >= 0 ? sin(a2) * endWave : sin(a2) * StartWave;
if(fabs(a1)>fabs(a2))
{
yTopmost = cos(a1)*StartWave ;
yBottonmost = cos(a2)*endWave ;
}
else
{
yTopmost = cos(a2)*StartWave ;
yBottonmost= cos(a1)*endWave ;
}
if(a1<=0&&a2>=0) yBottonmost = endWave ;
// 波型的实际宽度和高度.
// 虚拟发射点坐标
tempW = (gdouble)(xRightmost - xLeftmost) ;
tempH = (gdouble)(yBottonmost- yTopmost) ;
xOrg = 0 - xLeftmost ;
yOrg = 0 - yTopmost ;
// 实际尺寸 转 显示尺寸 比例
xScale = width/tempW ;
yScale = height/tempH ;
// 显示坐标系中 虚拟发射点坐标
xOrgS = (int)xOrg*xScale ;
yOrgS = (int)yOrg*yScale ;
//求每一列波型的 比例尺
//和拉伸后显示的扫描角度
for(i = 0; i< RowNo ; i++)
{
tempx = xScale*(sin(a1+i*a3)*endWave+xOrg) ;
tempy = yScale*(cos(a1+i*a3)*endWave+yOrg) ;