# HG changeset patch
# User Sam Lantinga <slouken@lokigames.com>
# Date 995137806 0
# Node ID 5a9c36a45db179736256fc356c06c4618024028b
# Parent  e021a4c9e25f965e3d05ac1b94d69fc2c7f0e00f
Fixed switching away from the SDL at the framebuffer console

diff -r e021a4c9e25f -r 5a9c36a45db1 src/video/fbcon/SDL_fb3dfx.c
--- a/src/video/fbcon/SDL_fb3dfx.c	Sat Jul 14 19:08:25 2001 +0000
+++ b/src/video/fbcon/SDL_fb3dfx.c	Sat Jul 14 19:10:06 2001 +0000
@@ -61,6 +61,11 @@
 	Uint32 format;
 	int dstX, dstY;
 
+	/* Don't blit to the display surface when switched away */
+	if ( dst == this->screen ) {
+		SDL_mutexP(hw_lock);
+	}
+
 	/* Set the destination pixel format */
 	dst_base = (char *)((char *)dst->pixels - mapped_mem);
 	bpp = dst->format->BitsPerPixel;
@@ -81,13 +86,16 @@
 
 	FB_AddBusySurface(dst);
 
+	if ( dst == this->screen ) {
+		SDL_mutexV(hw_lock);
+	}
 	return(0);
 }
 
 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
                        SDL_Surface *dst, SDL_Rect *dstrect)
 {
-	SDL_VideoDevice *this;
+	SDL_VideoDevice *this = current_video;
 	int bpp;
 	Uint32 src_format;
 	Uint32 dst_format;
@@ -98,8 +106,12 @@
 	Uint32 blitop;
 	Uint32 use_colorkey;
 
+	/* Don't blit to the display surface when switched away */
+	if ( dst == this->screen ) {
+		SDL_mutexP(hw_lock);
+	}
+
 	/* Set the source and destination pixel format */
-	this = current_video;
 	src_base = (char *)((char *)src->pixels - mapped_mem);
 	bpp = src->format->BitsPerPixel;
 	src_format = src->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13);
@@ -149,6 +161,9 @@
 	FB_AddBusySurface(src);
 	FB_AddBusySurface(dst);
 
+	if ( dst == this->screen ) {
+		SDL_mutexV(hw_lock);
+	}
 	return(0);
 }
 
diff -r e021a4c9e25f -r 5a9c36a45db1 src/video/fbcon/SDL_fbevents.c
--- a/src/video/fbcon/SDL_fbevents.c	Sat Jul 14 19:08:25 2001 +0000
+++ b/src/video/fbcon/SDL_fbevents.c	Sat Jul 14 19:10:06 2001 +0000
@@ -311,7 +311,7 @@
 
 static enum {
 	MOUSE_NONE = -1,
-	MOUSE_GPM,	/* Note: GPM uses the MSC protocol */
+	MOUSE_MSC,	/* Note: GPM uses the MSC protocol */
 	MOUSE_PS2,
 	MOUSE_IMPS2,
 	MOUSE_MS,
@@ -535,7 +535,7 @@
 #ifdef DEBUG_MOUSE
 fprintf(stderr, "Using GPM mouse\n");
 #endif
-					mouse_drv = MOUSE_GPM;
+					mouse_drv = MOUSE_MSC;
 				}
 			}
 		}
@@ -642,7 +642,7 @@
 	}
 }
 
-/* For now, use GPM, PS/2, and MS protocols
+/* For now, use MSC, PS/2, and MS protocols
    Driver adapted from the SVGAlib mouse driver code (taken from gpm, etc.)
  */
 static void handle_mouse(_THIS)
@@ -663,7 +663,7 @@
 			/* Ack! */
 			read(mouse_fd, mousebuf, BUFSIZ);
 			return;
-		case MOUSE_GPM:
+		case MOUSE_MSC:
 			packetsize = 5;
 			break;
 		case MOUSE_IMPS2:
@@ -709,8 +709,8 @@
 		switch (mouse_drv) {
 			case MOUSE_NONE:
 				break;
-			case MOUSE_GPM:
-				/* GPM protocol has 0x80 in high byte */
+			case MOUSE_MSC:
+				/* MSC protocol has 0x80 in high byte */
 				if ( (mousebuf[i] & 0xF8) != 0x80 ) {
 					/* Go to next byte */
 					i -= (packetsize-1);
@@ -825,7 +825,11 @@
 	return;
 }
 
-/* Handle switching to another VC, returns when our VC is back */
+/* Handle switching to another VC, returns when our VC is back.
+   This isn't necessarily the best solution.  For SDL 1.3 we need
+   a way of notifying the application when we lose access to the
+   video hardware and when we regain it.
+ */
 static void switch_vt(_THIS, unsigned short which)
 {
 	struct vt_stat vtstate;
@@ -844,6 +848,7 @@
 
 	/* Save the contents of the screen, and go to text mode */
 	SDL_mutexP(hw_lock);
+	wait_idle(this);
 	screen = SDL_VideoSurface;
 	screen_arealen = (screen->h*screen->pitch);
 	screen_contents = (Uint8 *)malloc(screen_arealen);
@@ -908,7 +913,9 @@
 		    case SDLK_F11:
 		    case SDLK_F12:
 			if ( SDL_GetModState() & KMOD_ALT ) {
-				switch_vt(this, (keysym.sym-SDLK_F1)+1);
+				if ( pressed ) {
+					switch_vt(this, (keysym.sym-SDLK_F1)+1);
+				}
 				break;
 			}
 			/* Fall through to normal processing */
diff -r e021a4c9e25f -r 5a9c36a45db1 src/video/fbcon/SDL_fbmatrox.c
--- a/src/video/fbcon/SDL_fbmatrox.c	Sat Jul 14 19:08:25 2001 +0000
+++ b/src/video/fbcon/SDL_fbmatrox.c	Sat Jul 14 19:10:06 2001 +0000
@@ -74,6 +74,11 @@
 	Uint32 ydstlen;
 	Uint32 fillop;
 
+	/* Don't blit to the display surface when switched away */
+	if ( dst == this->screen ) {
+		SDL_mutexP(hw_lock);
+	}
+
 	switch (dst->format->BytesPerPixel) {
 	    case 1:
 		color |= (color<<8);
@@ -108,13 +113,16 @@
 
 	FB_AddBusySurface(dst);
 
+	if ( dst == this->screen ) {
+		SDL_mutexV(hw_lock);
+	}
 	return(0);
 }
 
 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
                        SDL_Surface *dst, SDL_Rect *dstrect)
 {
-	SDL_VideoDevice *this;
+	SDL_VideoDevice *this = current_video;
 	int pitch, w, h;
 	int srcX, srcY;
 	int dstX, dstY;
@@ -128,8 +136,12 @@
 		return(src->map->sw_blit(src, srcrect, dst, dstrect));
 	}
 
+	/* Don't blit to the display surface when switched away */
+	if ( dst == this->screen ) {
+		SDL_mutexP(hw_lock);
+	}
+
 	/* Calculate source and destination base coordinates (in pixels) */
-	this = current_video;
 	w = dstrect->w;
 	h = dstrect->h;
 	FB_dst_to_xy(this, src, &srcX, &srcY);
@@ -201,6 +213,9 @@
 	FB_AddBusySurface(src);
 	FB_AddBusySurface(dst);
 
+	if ( dst == this->screen ) {
+		SDL_mutexV(hw_lock);
+	}
 	return(0);
 }