diff options
Diffstat (limited to 'engines/lab/vga.cpp')
| -rw-r--r-- | engines/lab/vga.cpp | 63 |
1 files changed, 47 insertions, 16 deletions
diff --git a/engines/lab/vga.cpp b/engines/lab/vga.cpp index 235d247145..728b15271e 100644 --- a/engines/lab/vga.cpp +++ b/engines/lab/vga.cpp @@ -43,6 +43,9 @@ uint32 VGAScreenWidth = 320UL, uint32 VGABASEADDRESS = 0xA0000L;
+byte *g_DisplayBuffer = 0;
+byte *g_Pixels = 0;
+
/*****************************************************************************/
/* Sets the display mode. */
@@ -61,6 +64,10 @@ bool createScreen(bool HiRes) { VGAScreenHeight = 480;
VGAPages = 1;
VGABytesPerPage = 640 * 480;
+
+ g_DisplayBuffer = (byte *)malloc(VGABytesPerPage);
+ g_Pixels = (byte *)calloc(VGABytesPerPage, 4);
+
return true;
}
@@ -84,19 +91,27 @@ void VGARestorePage(void) { // does nothing in SDL
}
-
-void waitTOF(void) {
- warning("STUB: waitTOF");
- //WSDL_WaitTOF(1);
+void WSDL_ProcessInput() {
}
+void waitTOF() {
+ int untilOutOfRefresh = 1;
-// NOTE: I don't think this function is called anywhere in the code.
-void waitTOFQuick(void) {
- warning("STUB: waitTOFQuick");
- //WSDL_WaitTOF(0);
-}
+ g_ScreenIsLocked = 0;
+ if (g_ScreenWasLocked || untilOutOfRefresh) {
+ g_system->copyRectToScreen(g_DisplayBuffer, VGAScreenWidth, 0, 0, VGAScreenWidth, VGAScreenHeight);
+ g_system->updateScreen();
+ }
+
+ g_ScreenWasLocked = 0;
+ WSDL_ProcessInput();
+
+ for (uint32 now = g_system->getMillis(); now - g_LastWaitTOFTicks <= 0xF; now = g_system->getMillis() )
+ g_system->delayMillis(g_LastWaitTOFTicks - now + 17);
+
+ g_LastWaitTOFTicks = now;
+}
static char curvgapal[256 * 3];
@@ -153,7 +168,28 @@ void VGASetPal(void *cmap, writeColorRegs((char *) cmap, 0, numcolors);
}
+byte *WSDL_LockVideo() {
+ g_ScreenWasLocked = 1;
+ g_ScreenIsLocked = 1;
+ return g_DisplayBuffer;
+}
+
+void WSDL_UnlockVideo() {
+ g_ScreenIsLocked = 0;
+}
+
+void WSDL_UpdateScreen() {
+ WSDL_UnlockVideo();
+
+ if (g_ScreenWasLocked && !g_IgnoreUpdateDisplay) {
+ g_system->copyRectToScreen(g_DisplayBuffer, VGAScreenWidth, 0, 0, VGAScreenWidth, VGAScreenHeight);
+ g_system->updateScreen();
+ }
+
+ g_ScreenWasLocked = 0;
+ WSDL_ProcessInput(0);
+}
/*****************************************************************************/
/* Returns the base address of the current VGA display. */
@@ -162,18 +198,13 @@ byte *getVGABaseAddr(void) { if (VGABASEADDRESS != 1)
return (byte *)VGABASEADDRESS;
- warning("STUB: getVGABaseAddr");
- return 0; // WSDL_LockVideo();
+ return WSDL_LockVideo();
}
-#if !defined(DOSCODE)
void ungetVGABaseAddr() {
- warning("STUB: ungetVGABaseAddr");
if (VGABASEADDRESS == 1)
- ; //WSDL_UnlockVideo();
+ WSDL_UnlockVideo();
}
-#endif
-
/*****************************************************************************/
/* Gets information about the current display. */
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