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call SDL_RenderSetLogicalSize to avoid manual coordinates adjustment based on zoom

This commit is contained in:
Sigrid Solveig Haflínudóttir 2021-05-18 15:28:47 +02:00
parent 5bcbb07262
commit 3d5e1e343f
1 changed files with 3 additions and 2 deletions
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5
src/emulator.c
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@ -113,6 +113,7 @@ init(void)
gRenderer = SDL_CreateRenderer(gWindow, -1, 0);
if(gRenderer == NULL)
return error("Renderer", SDL_GetError());
SDL_RenderSetLogicalSize(gRenderer, ppu.width, ppu.height);
gTexture = SDL_CreateTexture(gRenderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, ppu.width, ppu.height);
if(gTexture == NULL)
return error("Texture", SDL_GetError());
@ -136,8 +137,8 @@ void
domouse(SDL_Event *event)
{
Uint8 flag = 0x00;
Uint16 x = clamp(event->motion.x / zoom - ppu.pad, 0, ppu.hor * 8 - 1);
Uint16 y = clamp(event->motion.y / zoom - ppu.pad, 0, ppu.ver * 8 - 1);
Uint16 x = clamp(event->motion.x - ppu.pad, 0, ppu.hor * 8 - 1);
Uint16 y = clamp(event->motion.y - ppu.pad, 0, ppu.ver * 8 - 1);
mempoke16(devmouse->dat, 0x2, x);
mempoke16(devmouse->dat, 0x4, y);
devmouse->dat[7] = 0x00;