[ros-diffs] [fireball] 27277: - Map the framebuffer to 0xEE000000 in the freeldr, since 0xFF000000+ virtual addresses are used by the kernel for different purposes. - Add solid color fill. - Add VGA palette lookup for colors passed to the bootvid.dll. - Add support for transparent background in letters (color 16).

Author: fireball
Date: Mon Jun 25 22:02:59 2007
New Revision: 27277

URL: http://svn.reactos.org/svn/reactos?rev=27277&view=rev
Log:
- Map the framebuffer to 0xEE000000 in the freeldr, since 0xFF000000+ virtual addresses are used by the kernel for different purposes.
- Add solid color fill.
- Add VGA palette lookup for colors passed to the bootvid.dll.
- Add support for transparent background in letters (color 16).

Modified:
    branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c
    branches/olpc/drivers/base/bootvid/vid.c
    branches/olpc/drivers/base/bootvid/vid_fb.c

Modified: branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c
URL: http://svn.reactos.org/svn/reactos/branches/olpc/boot/freeldr/freeldr/arch/i...
==============================================================================
--- branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c (original)
+++ branches/olpc/boot/freeldr/freeldr/arch/i386/loader.c Mon Jun 25 22:02:59 2007
@@ -49,7 +49,7 @@
 extern PAGE_DIRECTORY_X86 framebuffer_pagetable;

#define FRAMEBUFFER_PHYS 0xFD000000
-#define FRAMEBUFFER_VIRT 0xFF000000
+#define FRAMEBUFFER_VIRT 0xEE000000
 #define FRAMEBUFFER_SIZE 2 * 1024 * 1024

PVOID

Modified: branches/olpc/drivers/base/bootvid/vid.c
URL: http://svn.reactos.org/svn/reactos/branches/olpc/drivers/base/bootvid/vid.c?...
==============================================================================
--- branches/olpc/drivers/base/bootvid/vid.c (original)
+++ branches/olpc/drivers/base/bootvid/vid.c Mon Jun 25 22:02:59 2007
@@ -40,7 +40,7 @@
     900 - 1
 };

-ULONG TextColor = 0xFFFF;
+ULONG TextColor = 0xF;
 ULONG curr_x = 0, curr_y = 0;
 BOOLEAN NextLine = FALSE;

Modified: branches/olpc/drivers/base/bootvid/vid_fb.c
URL: http://svn.reactos.org/svn/reactos/branches/olpc/drivers/base/bootvid/vid_fb...
==============================================================================
--- branches/olpc/drivers/base/bootvid/vid_fb.c (original)
+++ branches/olpc/drivers/base/bootvid/vid_fb.c Mon Jun 25 22:02:59 2007
@@ -31,9 +31,27 @@
 extern UCHAR BitmapFont8x16[256 * 16];
 extern UCHAR BitmapFont10x18[256 * 18 * 2];

-
-//static BOOLEAN VidpInitialized = FALSE;
-static PUCHAR VidpMemory = (VOID *)0xFF000000;
+USHORT VgaPalette[] = {
+    0x0000, /* 0 black */
+    0xA800, /* 1 blue */
+    0x0540, /* 2 green */
+    0xAD40, /* 3 cyan */
+    0x0015, /* 4 red */
+    0xA815, /* 5 magenta */
+    0x02B5, /* 6 brown */
+    0xAD55, /* 7 light gray */
+    0x52AA, /* 8 dark gray */
+    0xFAAA, /* 9 bright blue */
+    0x57EA, /* 10 bright green */
+    0xFFEA, /* 11 bright cyan */
+    0x52BF, /* 12 bright red */
+    0xFABF, /* 13 bright magenta */
+    0x57FF, /* 14 bright yellow */
+    0xFFFF  /* 15 bright white */
+};
+
+static BOOLEAN VidpInitialized = FALSE;
+static PUCHAR VidpMemory = (VOID *)0xEE000000;

#define CHAR_WIDTH  10
 #define CHAR_HEIGHT 18
@@ -60,10 +78,16 @@
     unsigned Line;
     unsigned Col;
     UCHAR BytesPerChar = (CHAR_WIDTH < 8) ? 1 : 2;
-
-    //HACK
-    Color = 0xFFFF;
-    BackTextColor = 0;
+    BOOLEAN Transparent = FALSE;
+
+    /* Transform from VGA palette to RGB565 */
+    if (Color < 16)
+        Color = VgaPalette[Color];
+    
+    if (BackTextColor < 16)
+        BackTextColor = VgaPalette[BackTextColor];
+    else
+        Transparent = TRUE;

FontPtr = (PUSHORT)(BitmapFont10x18 + Character * CHAR_HEIGHT * BytesPerChar);

@@ -74,7 +98,11 @@
         Mask = (1 << (CHAR_WIDTH-1));
         for (Col = 0; Col < CHAR_WIDTH; Col++)
         {
-            Pixel[Col] = (0 != (FontPtr[Line] & Mask) ? Color : BackTextColor);
+            if (!Transparent)
+                Pixel[Col] = (0 != (FontPtr[Line] & Mask) ? Color : BackTextColor);
+            else
+                Pixel[Col] = (0 != (FontPtr[Line] & Mask) ? Color : Pixel[Col]); // transparent background
+
             Mask = Mask >> 1;
         }
         Pixel = (WORD *) ((char *) Pixel + Stride);
@@ -150,7 +178,6 @@
 VidFbInitialize(
    IN BOOLEAN SetMode)
 {
-#if 0
    PHYSICAL_ADDRESS PhysicalAddress;

if (!VidpInitialized)
@@ -160,12 +187,9 @@
       if (VidpMemory == NULL)
          return FALSE;

-      memset(VidpMemory, 0x00, 0x200000);
-      //memset((VOID *)0xFF000000, 0x90, 1024*1024);
-
       VidpInitialized = TRUE;
    }
-#endif
+
    DPRINT1("VidFbInitialize(SetMode %d)\n", SetMode);
    return TRUE;
 }
@@ -218,6 +242,27 @@
    IN ULONG Bottom,
    IN ULONG Color)
 {
+    ULONG Line, Col;
+    PUSHORT p;
+
+    /* Sanity checks */
+    if (Top > Bottom)
+        return;
+    if (Left > Right)
+        return;
+
+    /* Translate color to the VGA palette */
+    if (Color < 16)
+        Color = VgaPalette[Color];
+
+    for (Line = Top; Line <= Bottom; Line++)
+    {
+        p = (PUSHORT)(VidpMemory + (Line * DISPLAY_WIDTH * BytesPerPixel) + Left * BytesPerPixel);
+        for (Col = 0; Col < (Right-Left); Col++)
+        {
+            *p++ = Color;
+        }
+    }
 }

static VOID NTAPI