X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/cdde55f54a0880bde5694fcdea8e386ada0cd5ce..8ba7e5b28a7f23ebf2423df41379516c8cbac6b5:/video/text.c

diff --git a/video/text.c b/video/text.c
index c9068b9..962af0c 100644
--- a/video/text.c
+++ b/video/text.c
@@ -3,6 +3,8 @@
 #include <paging.h>
 #include <minilib.h>
 #include <stdint.h>
+#include <output.h>
+#include <smram.h>
 
 static unsigned char _font[256 * 32];
 
@@ -11,25 +13,33 @@ static unsigned char _font[256 * 32];
 void text_init()
 {
 	unsigned char oldread;
+	smram_state_t old_state = smram_save_state();
 	outb(0x3CE, 0x05 /* Mode register */);
 	outb(0x3CF, inb(0x3CF) & ~(0x10 /* Odd/even */));
 	outb(0x3CE, 0x04 /* Read register */);
 	oldread = inb(0x3CF);
 	outb(0x3CF, 0x02 /* Font plane */);
+	smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
 	memcpy(_font, p2v(0xB8000), sizeof(_font));
+	smram_restore_state(old_state);
 	outb(0x3CF, oldread);
 }
 
-void text_render(unsigned char *buf, unsigned int x, unsigned int y, unsigned int w, unsigned int h)
+void text_render(char *buf, int x, int y, int w, int h)
 {
-	unsigned char *video = p2v(0xB8000);
+	unsigned char *video = (unsigned char *)0xB8000;
 	unsigned int textx = x / 9;
 	unsigned int texty = y / 14;
 	unsigned int cx, cy;
 	unsigned char ch, at, font;
+	smram_state_t old_state = smram_save_state();
 	
+	outputf("text_render: buf %08x, (%d,%d),(%d,%d)", buf, x, y, w, h);
+	
+	smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
 	for (cy = y; cy < (y + h); cy++)
 	{
+		cx = x;
 		texty = cy / 14;
 		textx = cx / 9;
 		ch = video[texty * 50 + textx * 2];
@@ -58,21 +68,29 @@ void text_render(unsigned char *buf, unsigned int x, unsigned int y, unsigned in
 				*(buf++) = (at & 0x20) ? 0xFF : 0x00;
 				*(buf++) = (at & 0x40) ? 0xFF : 0x00;
 			}
+			*(buf++) = 0;
 		}
 	}
+	smram_restore_state(old_state);
 }
 
 uint32_t text_checksum(int x, int y, int w, int h)
 {
-	unsigned char *video = p2v(0xB8000);
+	unsigned char *video = (unsigned char *)0xB8000;
 	unsigned int textx = x / 9;
 	unsigned int texty = y / 14;
 	int cx, cy;
 	unsigned char ch, at;
 	uint32_t cksm = 0;
+	smram_state_t old_state = smram_save_state();
+	
+	outputf("checksum: (%d,%d),(%d,%d)", x,y,w,h);
+	
+	smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
 	
 	for (cy = y; cy < (y + h); cy++)
 	{
+		cx = x;
 		texty = cy / 14;
 		textx = cx / 9;
 		ch = video[texty * 50 + textx * 2];
@@ -91,5 +109,9 @@ uint32_t text_checksum(int x, int y, int w, int h)
 		}
 	}
 	
+	smram_restore_state(old_state);
+	
+	outputf("checksum: %08x", cksm);
+	
 	return cksm;
 }