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optimize drawing rectangular grid

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TT 2016-11-02 22:38:04 +09:00
parent bc6ce2963c
commit 23f2b7f695
2 changed files with 49 additions and 9 deletions
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3
nanovna.h
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@ -171,3 +171,6 @@ extern config_t current_config;
#define cal_status active->_cal_status
#define frequencies active->_frequencies
#define cal_data active->_cal_data
#define PULSE do { palClearPad(GPIOC, GPIOC_LED); palSetPad(GPIOC, GPIOC_LED);} while(0)

55
plot.c
View file

@ -70,8 +70,8 @@ int32_t fstart = 0;
int32_t fstop = 300000000;
int32_t fspan = 300000000;
int32_t fgrid = 50000000;
int grid_offset;
int grid_width;
int16_t grid_offset;
int16_t grid_width;
void set_sweep(int32_t start, int stop)
{
@ -153,25 +153,48 @@ smith_grid(int x, int y)
return 0;
}
#if 0
int
rectangular_grid(int x, int y)
{
#define FREQ(x) (((x) * (fspan / 1000) / (WIDTH-1)) * 1000 + fstart)
int c = grid_color;
//#define FREQ(x) (((x) * (fspan / 1000) / (WIDTH-1)) * 1000 + fstart)
//int32_t n = FREQ(x-1) / fgrid;
//int32_t m = FREQ(x) / fgrid;
//if ((m - n) > 0)
//if (((x * 6) % (WIDTH-1)) < 6)
//if (((x - grid_offset) % grid_width) == 0)
if ((((x + grid_offset) * 10) % grid_width) < 10)
return c;
if (x == 0 || x == (WIDTH-1))
return c;
if ((y % 29) == 0)
return c;
if ((((x + grid_offset) * 10) % grid_width) < 10)
return c;
return 0;
}
#endif
int
rectangular_grid_x(int x)
{
int c = grid_color;
if (x == 0 || x == (WIDTH-1))
return c;
if ((((x + grid_offset) * 10) % grid_width) < 10)
return c;
return 0;
}
int
rectangular_grid_y(int y)
{
int c = grid_color;
if ((y % 29) == 0)
return c;
return 0;
}
#if 0
int
set_strut_grid(int x)
{
@ -205,7 +228,7 @@ draw_on_strut(int v0, int d, int color)
while (d-- > 0)
spi_buffer[v++] |= color;
}
#endif
/*
* calculate log10(abs(gamma))
@ -658,14 +681,26 @@ draw_cell(int m, int n)
if (y0 + h > HEIGHT)
h = HEIGHT - y0;
PULSE;
/* draw grid */
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
uint16_t c = rectangular_grid(x+x0, y+y0);
c |= smith_grid(x+x0, y+y0);
uint16_t c = rectangular_grid_x(x+x0);
for (y = 0; y < h; y++)
spi_buffer[y * w + x] = c;
}
for (y = 0; y < h; y++) {
uint16_t c = rectangular_grid_y(y+y0);
for (x = 0; x < w; x++)
spi_buffer[y * w + x] |= c;
}
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
//uint16_t c = rectangular_grid(x+x0, y+y0);
uint16_t c = smith_grid(x+x0, y+y0);
spi_buffer[y * w + x] |= c;
}
}
PULSE;
#if 1
/* draw rectanglar plot */
@ -730,8 +765,10 @@ draw_cell(int m, int n)
}
#endif
PULSE;
cell_draw_markers(m, n, w, h);
cell_draw_marker_info(m, n, w, h);
PULSE;
ili9341_bulk(OFFSETX + x0, OFFSETY + y0, w, h);
}