Changeset 44055 in vbox for trunk/src/VBox/Devices

Timestamp:

Dec 6, 2012 5:03:49 PM (12 years ago)

Author:

vboxsync

Message:

DevVGA: Do not draw more lines than necessary.

Location:

trunk/src/VBox/Devices/Graphics

Files:

• DevVGA.cpp (modified) (1 diff)
• DevVGA.h (modified) (2 diffs)

trunk/src/VBox/Devices/Graphics/DevVGA.cpp

@@ -1814 +1814 @@
     cx_min_upd = width;
 
-    for(cy = 0; cy < height; cy = cy + (1 << dscan)) {
+    for(cy = 0; cy < (height - dscan); cy = cy + (1 << dscan)) {
         d1 = dest;
         src = s1;

trunk/src/VBox/Devices/Graphics/DevVGA.h

@@ -311 +311 @@
     /** Whether to render the guest VRAM to the framebuffer memory. False only for some LFB modes. */
     bool                        fRenderVRAM;
-    bool                        Padding1[2];
+    /** Indicates "simple" planar write access to VGA aperture. */
+    bool                        fSimplePlanarWrite;
+    /** Current "simple" write plane. */
+    uint8_t                     uPassthruPlane;
 
     /** The physical address the VRAM was assigned. */
@@ -326 +329 @@
     STAMCOUNTER                 StatMapPage;            /**< Counts IOMMMIOMapMMIO2Page calls.  */
     STAMCOUNTER                 StatUpdateDisp;         /**< Counts vgaPortUpdateDisplay calls.  */
+    STAMCOUNTER                 StatChgDWState;
+    STAMCOUNTER                 StatChgDWPlane;
+    STAMCOUNTER                 StatRZOptWrite;
+    STAMCOUNTER                 StatR3OptWrite;
 
     /* Keep track of ring 0 latched accesses to the VGA MMIO memory. */