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#include "sldj.h"
void initSldj(Sldj* sldj)
{
InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Scanline DJ");
SetWindowState(FLAG_WINDOW_RESIZABLE);
SetTargetFPS(FRAME_RATE);
sldj->screenTexture = LoadRenderTexture(SCREEN_WIDTH, SCREEN_HEIGHT);
sldj->frameCounter = 0;
}
uint16_t noise = 0;
Color scanPoint(uint16_t x, uint16_t y, int frame)
{
noise ^= frame;
noise ^= x ^ y;
return (Color){.r = (y >> (6 - noise)) ^ (frame << 4), .g = noise >> x, .b = 0, .a = 255};
}
void updateSldj(Sldj* sldj)
{
BeginDrawing();
// Scan image.
BeginTextureMode(sldj->screenTexture);
uint16_t xScaled = 0;
uint16_t yScaled = 0;
for (uint16_t y = 0; y < SCREEN_HEIGHT; ++y)
{
xScaled = 0;
for (uint16_t x = 0; x < SCREEN_WIDTH; ++x)
{
DrawPixel(x, y, scanPoint(xScaled, yScaled, sldj->frameCounter));
xScaled += 65536 / SCREEN_WIDTH;
}
yScaled += 65536 / SCREEN_HEIGHT;
}
EndTextureMode();
// Draw scanned image.
DrawTexturePro(
sldj->screenTexture.texture,
(Rectangle){0.0, 0.0, SCREEN_WIDTH, SCREEN_HEIGHT},
(Rectangle){0.0, 0.0, SCREEN_WIDTH, SCREEN_HEIGHT},
(Vector2){0.0, 0.0},
0.0,
WHITE
);
EndDrawing();
++sldj->frameCounter;
}
void closeSldj(Sldj* sldj)
{
UnloadRenderTexture(sldj->screenTexture);
CloseWindow();
}
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