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authorRobert Göffringmann2003-06-02 00:53:31 +0000
committerRobert Göffringmann2003-06-02 00:53:31 +0000
commit1014c98fcbe61768e296beff3346a23768e53a6b (patch)
tree8a6a0c82c24b180b14a6f7d47e75bb164058c132
parent281cce32b9241248a83137aaddabd1fbdc9b6029 (diff)
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screen combine rectangles now. even a bit less cpu usage.
svn-id: r8258
-rw-r--r--sky/screen.cpp12
1 files changed, 11 insertions, 1 deletions
diff --git a/sky/screen.cpp b/sky/screen.cpp
index 6e60a0f88a..c8050eefa1 100644
--- a/sky/screen.cpp
+++ b/sky/screen.cpp
@@ -179,10 +179,14 @@ void SkyScreen::flip(void) {
// drawMouseToBackScreen();
uint8 *screenPos = _currentScreen;
uint8 *backPos = _backScreen;
+ uint32 copyX, copyWidth;
for (uint8 cnty = 0; cnty < GRID_Y; cnty++) {
+ copyWidth = 0;
for (uint8 cntx = 0; cntx < GRID_X; cntx++) {
if (_gameGrid[cnty * GRID_X + cntx] & 1) {
_gameGrid[cnty * GRID_X + cntx] &= ~1;
+ if (!copyWidth) copyX = cntx * GRID_W;
+ copyWidth += GRID_W;
uint8 *copySrc = backPos;
uint8 *copyDest = screenPos;
for (uint8 gridLineCnt = 0; gridLineCnt < GRID_H; gridLineCnt++) {
@@ -190,11 +194,17 @@ void SkyScreen::flip(void) {
copySrc += GAME_SCREEN_WIDTH;
copyDest += GAME_SCREEN_WIDTH;
}
- _system->copy_rect(screenPos, GAME_SCREEN_WIDTH, cntx * GRID_W, cnty * GRID_H, GRID_W, GRID_H);
+ } else if (copyWidth) {
+ _system->copy_rect(_currentScreen + cnty * GRID_H * GAME_SCREEN_WIDTH + copyX, GAME_SCREEN_WIDTH, copyX, cnty * GRID_H, copyWidth, GRID_H);
+ copyWidth = 0;
}
backPos += GRID_W;
screenPos += GRID_W;
}
+ if (copyWidth) {
+ _system->copy_rect(_currentScreen + cnty * GRID_H * GAME_SCREEN_WIDTH + copyX, GAME_SCREEN_WIDTH, copyX, cnty * GRID_H, copyWidth, GRID_H);
+ copyWidth = 0;
+ }
screenPos += (GRID_H - 1) * GAME_SCREEN_WIDTH;
backPos += (GRID_H - 1) * GAME_SCREEN_WIDTH;
}