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#include "glui.h"
#if def(OS_LINUX)
#define DEFAULT_TITLE "RADIOLA"
#define SCREEN_X 1024
#define SCREEN_Y 480
int glui_init( glui_t **t )
{
int ret=-1;
glui_t *tui = NULL;
tui = malloc( sizeof(glui_t) );
if (tui == NULL)
{
return -1;
}
memset(tui, 0, sizeof(glui_t));
if ( SDL_Init(SDL_INIT_VIDEO) != 0)
{
printf("Cannot init sdl\n");
return -1;
}
tui->h = SCREEN_Y;
tui->w = SCREEN_X;
tui->win = SDL_CreateWindow("Hello World!", tui->w, tui->h, SCREEN_X, SCREEN_Y, SDL_WINDOW_SHOWN);
if (tui->win == NULL)
{
printf("Couldnt create SDL window\n");
return -1;
}
*t = tui;
ret = 0;
return ret;
}
//init waterfall
int glui_waterfall( glui_t **t, glui_waterfall_t **w )
{
int ret=-1;
glui_waterfall_t *wtf = NULL;
wtf = malloc( sizeof(glui_waterfall_t) );
if ( wtf == NULL )
{
printf("Cannot alloc waterfall\n");
return -1;
}
memset( wtf, 0, sizeof(glui_waterfall_t) );
wtf->h = (*t)->h;
wtf->w = (*t)->w;
wtf->cur_h = 5;
wtf->rend = SDL_CreateRenderer( (*t)->win, -1, SDL_RENDERER_ACCELERATED);
if ( wtf->rend == NULL )
{
printf("Canno create SDL Rendered\n");
return -1;
}
(*w) = wtf;
(*t)->wf = wtf;
ret = 0;
return ret;
}
//first draw, draw all buffer
int glui_waterfall_draw( glui_waterfall_t *w )
{
int ret=-1;
return ret;
}
//redraw only changed lines
int glui_waterfall_redraw( glui_waterfall_t *w )
{
int ret=-1;
return ret;
}
//update params of waterfall and then need to draw not redraw
int glui_waterfall_update( glui_t *w )
{
int ret=-1;
return ret;
}
//push one line of data to buffer
int glui_waterfall_data( glui_t *t, int len, uint8_t *buf )
{
int ret=-1;
int i;
int y;
glui_color_t c = glui_waterfall_color(0);
SDL_Point *pt = NULL;
SDL_SetRenderDrawColor( t->wf->rend, c.r, c.g, c.b, c.a );
y = t->wf->cur_h;
t->wf->cur_h += 1;
pt = malloc( sizeof(SDL_Point) );
for ( i=0; i<len; i++ )
{
c = glui_waterfall_color(buf[i]);
SDL_SetRenderDrawColor( t->wf->rend, c.r, c.g, c.b, c.a );
pt[0].x = i;
pt[0].y = y;
SDL_RenderDrawPoints( t->wf->rend, pt, 1 );
}
SDL_RenderPresent( t->wf->rend );
ret = 0;
return ret;
}
//return color
glui_color_t glui_waterfall_color( uint8_t d )
{
glui_color_t c;
c.r = d*10;
c.g = d*10;
c.b = d*10;
return c;
}
//close terminal ui
int glui_close( glui_t *t )
{
int ret=0;
if ( t->win != NULL )
{
SDL_DestroyWindow( t->win );
}
SDL_Quit();
return ret;
}
#endif
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