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N-point perspective: Use Magic API's pixel XOR

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This commit is contained in:
Bill Kendrick 2023-12-21 00:36:48 -08:00
parent a72e5b9b42
commit e9db3d2393
1 changed files with 2 additions and 12 deletions
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14
magic/src/n_pt_persp.c
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@ -559,19 +559,9 @@ void n_pt_persp_line_xor_callback(void *pointer, int which ATTRIBUTE_UNUSED, SDL
SDL_Surface * snapshot ATTRIBUTE_UNUSED, int x, int y) SDL_Surface * snapshot ATTRIBUTE_UNUSED, int x, int y)
{ {
magic_api *api = (magic_api *) pointer; magic_api *api = (magic_api *) pointer;
Uint8 r, g, b;
SDL_GetRGB(api->getpixel(canvas, x, y), canvas->format, &r, &g, &b); api->xorpixel(canvas, x, y);
r ^= 255; api->xorpixel(canvas, x + 1, y + 1);
g ^= 255;
b ^= 255;
api->putpixel(canvas, x, y, SDL_MapRGB(canvas->format, r, g, b));
SDL_GetRGB(api->getpixel(canvas, x + 1, y + 1), canvas->format, &r, &g, &b);
r ^= 255;
g ^= 255;
b ^= 255;
api->putpixel(canvas, x + 1, y + 1, SDL_MapRGB(canvas->format, r, g, b));
} }
void n_pt_persp_line_callback(void *pointer ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, void n_pt_persp_line_callback(void *pointer ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,