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authordominik <dominik@openttd.org>2004-08-11 08:56:54 +0000
committerdominik <dominik@openttd.org>2004-08-11 08:56:54 +0000
commita778b317f6ad08f9180161b6632cc4ffeebc37f9 (patch)
tree4f4295600f44fe20c15955ac32562f6770b9b038
parent4c6a6ea85cfbd83f5020598ecc43ae4a4c324e9c (diff)
downloadopenttd-a778b317f6ad08f9180161b6632cc4ffeebc37f9.tar.xz
(svn r19) SDL performance fix fo palette animation and mouse jumping (jirif)
-rw-r--r--sdl.c78
1 files changed, 40 insertions, 38 deletions
diff --git a/sdl.c b/sdl.c
index b4083ab8d..cf067ccca 100644
--- a/sdl.c
+++ b/sdl.c
@@ -188,14 +188,17 @@ static void InitPalette(void) {
UpdatePalette(0, 256);
}
-static void DrawSurfaceToScreen()
+static void CheckPaletteAnim()
{
- int n;
-
if(_pal_last_dirty != -1) {
UpdatePalette(_pal_first_dirty, _pal_last_dirty + 1);
_pal_last_dirty = -1;
}
+}
+
+static void DrawSurfaceToScreen()
+{
+ int n;
if ((n=_num_dirty_rects) != 0) {
_num_dirty_rects = 0;
@@ -292,7 +295,7 @@ static bool CreateMainSurface(int w, int h)
DEBUG(misc, 0) ("sdl: using mode %dx%d", w, h);
- newscreen = SDL_CALL SDL_SetVideoMode(w, h, 8, SDL_SWSURFACE + SDL_HWPALETTE + (_fullscreen?SDL_FULLSCREEN:SDL_RESIZABLE));
+ newscreen = SDL_CALL SDL_SetVideoMode(w, h, 8, SDL_HWSURFACE + SDL_HWPALETTE + (_fullscreen?SDL_FULLSCREEN:SDL_RESIZABLE));
if(newscreen == NULL)
return false;
@@ -497,7 +500,7 @@ static void SdlVideoStop()
static int SdlVideoMainLoop()
{
- uint32 next_tick = SDL_CALL SDL_GetTicks() + 30, cur_ticks;
+ uint32 next_tick = SDL_CALL SDL_GetTicks() + 30, cur_ticks, pal_tick ;
int i;
uint32 mod;
int numkeys;
@@ -509,30 +512,10 @@ static int SdlVideoMainLoop()
while ((i=PollEvent()) == -1) {}
if (i>=0) return i;
- mod = SDL_CALL SDL_GetModState();
- _ctrl_pressed = !!(mod & (KMOD_LCTRL | KMOD_RCTRL));
- _shift_pressed = !!(mod & (KMOD_LSHIFT | KMOD_RSHIFT));
-
-
- keys = SDL_CALL SDL_GetKeyState(&numkeys);
-
- _dirkeys =
- (keys[SDLK_LEFT] ? 1 : 0) +
- (keys[SDLK_UP] ? 2 : 0) +
- (keys[SDLK_RIGHT] ? 4 : 0) +
- (keys[SDLK_DOWN] ? 8 : 0);
-
- GameLoop();
-
- _screen.dst_ptr = _sdl_screen->pixels;
- UpdateWindows();
-
- if ((cur_ticks=SDL_CALL SDL_GetTicks()) > next_tick) {
- next_tick = cur_ticks;
- } else {
- DrawSurfaceToScreen();
- }
+ if (_exit_game) return ML_QUIT;
+ mod = SDL_CALL SDL_GetModState();
+ keys = SDL_CALL SDL_GetKeyState(&numkeys);
#if defined(_DEBUG)
if (_shift_pressed) {
#else
@@ -543,18 +526,37 @@ static int SdlVideoMainLoop()
_fast_forward = 0;
}
- if (!_fast_forward || _pause) {
- int d = next_tick - SDL_CALL SDL_GetTicks();
- if (d > 0) {
- SDL_CALL SDL_Delay(d);
+ cur_ticks=SDL_CALL SDL_GetTicks();
+ if ((_fast_forward && !_pause) || cur_ticks > next_tick)
+ next_tick = cur_ticks;
+
+ if (cur_ticks == next_tick) {
+ next_tick += 30;
+
+ _ctrl_pressed = !!(mod & (KMOD_LCTRL | KMOD_RCTRL));
+ _shift_pressed = !!(mod & (KMOD_LSHIFT | KMOD_RSHIFT));
+
+ // determine which directional keys are down
+ _dirkeys =
+ (keys[SDLK_LEFT] ? 1 : 0) +
+ (keys[SDLK_UP] ? 2 : 0) +
+ (keys[SDLK_RIGHT] ? 4 : 0) +
+ (keys[SDLK_DOWN] ? 8 : 0);
+ GameLoop();
+
+ _screen.dst_ptr = _sdl_screen->pixels;
+ UpdateWindows();
+ if (++ pal_tick > 4){
+ CheckPaletteAnim();
+ pal_tick = 1;
}
+ DrawSurfaceToScreen();
} else {
- next_tick = SDL_CALL SDL_GetTicks();
+ SDL_CALL SDL_Delay(1);
+ _screen.dst_ptr = _sdl_screen->pixels;
+ DrawMouseCursor();
+ DrawSurfaceToScreen();
}
- next_tick += 30;
-
- if (_exit_game)
- return ML_QUIT;
}
}
@@ -563,7 +565,7 @@ static bool SdlVideoChangeRes(int w, int h)
// see if the mode is available
if (GetAvailableVideoMode(&w, &h) != 1)
return false;
-
+
CreateMainSurface(w, h);
return true;
}