The app_server now updates the kernel's blue screen frame buffer on mode changes

(only the accelerant HW interface does this for now).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12897 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/syscalls.h

@@ -268,7 +268,10 @@ int sys_socket(int family, int type, int proto);
 /* System informations */
 extern status_t		_kern_get_system_info(system_info *info, size_t size);
 
+/* Debug output */
 extern void			_kern_debug_output(const char *message);
+extern status_t		_kern_frame_buffer_update(addr_t baseAddress, int32 width,
+						int32 height, int32 depth, int32 bytesPerRow);
 
 /* messaging service */
 extern area_id		_kern_register_messaging_service(sem_id lockingSem,

src/servers/app/drawing/AccelerantHWInterface.cpp

@@ -42,6 +42,15 @@
 #	define ATRACE(x) ;
 #endif
 
+
+// This call updates the frame buffer used by the on-screen KDL
+#ifdef __HAIKU__
+extern "C" status_t _kern_frame_buffer_update(void *baseAddress,
+						int32 width, int32 height,
+						int32 depth, int32 bytesPerRow);
+#endif
+
+
 // constructor
 AccelerantHWInterface::AccelerantHWInterface()
 	:	HWInterface(),
@@ -358,6 +367,17 @@ AccelerantHWInterface::SetMode(const display_mode &mode)
 	if (UpdateFrameBufferConfig() != B_OK)
 		return B_ERROR;
 
+	// Update the frame buffer used by the on-screen KDL
+#ifdef __HAIKU__
+	uint32 depth = (fFrameBufferConfig.bytes_per_row / fDisplayMode.virtual_width) << 3;
+	if (fDisplayMode.space == B_RGB15)
+		depth = 15;
+
+	_kern_frame_buffer_update(fFrameBufferConfig.frame_buffer,
+		fDisplayMode.virtual_width, fDisplayMode.virtual_height,
+		depth, fFrameBufferConfig.bytes_per_row);
+#endif
+
 	// update backbuffer if neccessary
 	if (!fBackBuffer || fBackBuffer->Width() != fDisplayMode.virtual_width
 		|| fBackBuffer->Height() != fDisplayMode.virtual_height) {

src/system/kernel/debug/frame_buffer_console.cpp

@@ -193,6 +193,9 @@ console_get_size(int32 *_width, int32 *_height)
 static void
 console_move_cursor(int32 x, int32 y)
 {
+	if (!frame_buffer_console_available())
+		return;
+
 	draw_cursor(sConsole.cursor_x, sConsole.cursor_y);
 	draw_cursor(x, y);
 	
@@ -204,7 +207,8 @@ console_move_cursor(int32 x, int32 y)
 static void
 console_put_glyph(int32 x, int32 y, uint8 glyph, uint8 attr)
 {
-	if (x >= sConsole.columns || y >= sConsole.rows)
+	if (x >= sConsole.columns || y >= sConsole.rows
+		|| !frame_buffer_console_available())
 		return;
 
 	render_glyph(x, y, glyph, attr);
@@ -214,7 +218,8 @@ console_put_glyph(int32 x, int32 y, uint8 glyph, uint8 attr)
 static void
 console_fill_glyph(int32 x, int32 y, int32 width, int32 height, uint8 glyph, uint8 attr)
 {
-	if (x >= sConsole.columns || y >= sConsole.rows)
+	if (x >= sConsole.columns || y >= sConsole.rows
+		|| !frame_buffer_console_available())
 		return;
 
 	int32 left = x + width;
@@ -236,6 +241,9 @@ console_fill_glyph(int32 x, int32 y, int32 width, int32 height, uint8 glyph, uin
 static void
 console_blit(int32 srcx, int32 srcy, int32 width, int32 height, int32 destx, int32 desty)
 {
+	if (!frame_buffer_console_available())
+		return;
+
 	height *= CHAR_HEIGHT;
 	srcy *= CHAR_HEIGHT;
 	desty *= CHAR_HEIGHT;
@@ -261,6 +269,9 @@ console_blit(int32 srcx, int32 srcy, int32 width, int32 height, int32 destx, int
 static void
 console_clear(uint8 attr)
 {
+	if (!frame_buffer_console_available())
+		return;
+
 	switch (sConsole.bytes_per_pixel) {
 		case 1:
 			if (sConsole.depth >= 8) {
@@ -420,7 +431,7 @@ _user_frame_buffer_update(addr_t baseAddress, int32 width, int32 height,
 {
 	if (geteuid() != 0)
 		return B_NOT_ALLOWED;
-	if (IS_USER_ADDRESS(baseAddress))
+	if (IS_USER_ADDRESS(baseAddress) && baseAddress != NULL)
 		return B_BAD_ADDRESS;
 
 	return frame_buffer_update(baseAddress, width, height, depth, bytesPerRow);

src/system/kernel/syscalls.c

@@ -34,6 +34,7 @@
 #include <safemode.h>
 #include <arch/system_info.h>
 #include <messaging.h>
+#include <frame_buffer_console.h>
 
 #include <malloc.h>
 #include <string.h>