Add-in development tools for fx-9860G and fx-CG 50, to use with GCC and gint.
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#include "config.h"
#ifndef FXLINK_DISABLE_SDL2
#include "sdl2.h"
#include "util.h"
static SDL_Window *window = NULL;
static int init(size_t width, size_t height)
{
if(!SDL_WasInit(SDL_INIT_VIDEO)) {
int rc = SDL_Init(SDL_INIT_VIDEO);
if(rc < 0)
return err("Cannot initialize SDL: %s\n", SDL_GetError());
}
window = SDL_CreateWindow("fxlink", SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, width, height, 0);
return 0;
}
__attribute__((destructor))
static void quit(void)
{
if(!window)
return;
SDL_DestroyWindow(window);
window = NULL;
}
/* Generate an RGB888 surface from image data. */
static SDL_Surface *surface_for_image(uint8_t **RGB888_rows, int width,
int height)
{
/* Little endian setup for RGB */
SDL_Surface *s = SDL_CreateRGBSurface(0, width, height, 24,
0x000000ff, 0x0000ff00, 0x0000ff00, 0);
if(!s) {
err("Cannot create surface for image");
return NULL;
}
for(int i = 0; i < height; i++)
memcpy(s->pixels + i * s->pitch, RGB888_rows[i], width * 3);
return s;
}
void sdl2_stream(uint8_t **RGB888_rows, int width, int height)
{
if(!window && init(width, height))
return;
int current_w, current_h;
SDL_GetWindowSize(window, &current_w, &current_h);
if(current_w != width || current_h != height)
SDL_SetWindowSize(window, width, height);
SDL_Surface *src = surface_for_image(RGB888_rows, width, height);
if(!src)
return;
SDL_Surface *dst = SDL_GetWindowSurface(window);
SDL_BlitSurface(src, NULL, dst, NULL);
SDL_FreeSurface(src);
SDL_UpdateWindowSurface(window);
}
void sdl2_tick(void)
{
if(!window)
return;
SDL_Event e;
while(SDL_PollEvent(&e)) {
if(e.type == SDL_QUIT)
quit();
}
}
#endif /* FXLINK_DISABLE_SDL2 */