Add SDL renderer, demo webm
diff --git a/screen.c b/screen.c
index 2eb17a2..fedc151 100644
--- a/screen.c
+++ b/screen.c
@@ -1,10 +1,12 @@
#include "screen.h"
#include "cpu.h"
+#include <SDL2/SDL.h>
+
struct nk_color byte_to_color(uint8_t b)
{
struct nk_color c;
- c.r = (b >> 6) * (255 / 0b11);
+ c.r = (b >> 5) * (255 / 0b111);
c.g = ((b >> 2) & 0b111) * (255 / 0b111);
c.b = (b & 0b11) * (255 / 0b11);
c.a = 255;
@@ -32,7 +34,59 @@
nk_fill_rect(out,
nk_rect(bounds.x + i * size, bounds.y + j * size,
size, size), 0.0f,
- byte_to_color(mem[i * CPU_FB_H + j]));
+ byte_to_color(mem[i + CPU_FB_H * j]));
}
}
}
+
+sdl_screen_t new_sdl_screen(uint8_t size)
+{
+ sdl_screen_t scr;
+ scr.win = SDL_CreateWindow("6502",
+ SDL_WINDOWPOS_CENTERED,
+ SDL_WINDOWPOS_CENTERED,
+ size * 32,
+ size * 32,
+ 0);
+ scr.size = size;
+ scr.r = SDL_CreateRenderer(scr.win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+
+ return scr;
+}
+
+void sdl_screen(sdl_screen_t *scr, uint8_t *mem)
+{
+ SDL_RenderClear(scr->r);
+
+ SDL_Event e;
+
+ while (SDL_PollEvent(&e))
+ {
+ switch (e.type)
+ {
+ case SDL_QUIT:
+ exit(0);
+ }
+ }
+
+ for (int i = 0; i < CPU_FB_H; i++)
+ {
+ for (int j = 0; j < CPU_FB_W; j++)
+ {
+ SDL_Rect r =
+ {
+ i * scr->size,
+ j * scr->size,
+ scr->size,
+ scr->size,
+ };
+
+ struct nk_color c = byte_to_color(mem[i + CPU_FB_H * j]);
+
+ SDL_SetRenderDrawColor(scr->r, c.r, c.g, c.b, c.a);
+ SDL_RenderFillRect(scr->r, &r);
+ }
+ }
+
+ SDL_RenderPresent(scr->r);
+}