thirdparty/scummvm
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Applied roever's screen effects patch (#602595) and fixed LethalWP's Makefile ;)

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svn-id: r4909
This commit is contained in:
Michael Pearce 2002-09-09 05:56:11 +00:00
parent 5b8eb34406
commit 0fbefc72aa
12 changed files with 300 additions and 4 deletions
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37
backends/sdl/sdl-common.cpp
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@ -135,6 +135,43 @@ void OSystem_SDL_Common::copy_rect(const byte *buf, int pitch, int x, int y, int
}
void OSystem_SDL_Common::move_screen(int dx, int dy, int height) {
if ((dx == 0) && (dy == 0))
return;
if (dx == 0) {
// vertical movement
if (dy > 0) {
// move down
// copy from bottom to top
for (int y = height - 1; y >= dy; y--)
copy_rect((byte *)sdl_screen->pixels + SCREEN_WIDTH * (y - dy), SCREEN_WIDTH, 0, y, SCREEN_WIDTH, 1);
} else {
// move up
// copy from top to bottom
for (int y = 0; y < height + dx; y++)
copy_rect((byte *)sdl_screen->pixels + SCREEN_WIDTH * (y - dy), SCREEN_WIDTH, 0, y, SCREEN_WIDTH, 1);
}
} else if (dy == 0) {
// horizontal movement
if (dx > 0) {
// move right
// copy from right to left
for (int x = SCREEN_WIDTH - 1; x >= dx; x--)
copy_rect((byte *)sdl_screen->pixels + x - dx, SCREEN_WIDTH, x, 0, 1, height);
} else {
// move left
// copy from left to right
for (int x = 0; x < SCREEN_WIDTH; x++)
copy_rect((byte *)sdl_screen->pixels + x - dx, SCREEN_WIDTH, x, 0, 1, height);
}
} else {
// free movement
// not neccessary for now
}
}
void OSystem_SDL_Common::add_dirty_rect(int x, int y, int w, int h) {
if (force_full)
return;