updates from Daniel Borca

author: Brian Paul <brian.paul@tungstengraphics.com> 2002-09-03 18:11:32 +0000
committer: Brian Paul <brian.paul@tungstengraphics.com> 2002-09-03 18:11:32 +0000
commit: 05ed911aca5ad0a6842ea0d6f3ac99b79ec752db (patch)
tree: 3eab5e0bb8d2d90f3076a0c48679b7f08674ba73
parent: b9f75444e60477e7a523e7eec1bb49a8232fd4e7 (diff)
18 files changed, 1294 insertions, 568 deletions
diff --git a/docs/README.DJ b/docs/README.DJ
index e92d36cf4c..444fe8947c 100644
--- a/docs/README.DJ
+++ b/docs/README.DJ
@@ -1,4 +1,4 @@
-			Mesa 4.0 DOS/DJGPP Port v1.0
+			Mesa 4.0 DOS/DJGPP Port v1.1
 			~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 
@@ -6,75 +6,149 @@
 Description:
 ~~~~~~~~~~~~
 
-Well, guess what... this is the DOS port of MESA 4.0, for DJGPP fans... Whoa!
+Well, guess what... this is the DOS port of Mesa 4.0.3, for DJGPP fans... Whoa!
+The driver has its origins in ddsample.c, written by Brian Paul and found by me
+in Mesa 3.4.2.
 
 
 
 Legal:
 ~~~~~~
 
-MESA copyright applies.
+Mesa copyright applies, provided this package is used within Mesa. For anything
+else, see GPL.
 
 
 
 Installation:
 ~~~~~~~~~~~~~
 
-Type "make -f Makefile.DJ" to compile the libraries. Make accepts some options
-which are passed to compiler: the target cpu (CPU=..., default=`pentium') and
-X86 specific options (HAVE_X86=1, HAVE_MMX=1, HAVE_SSE=1, HAVE_3DNOW=1). The
-core library (libGL) requires LFN support during compilation. Also, you must
-have the DXE2 package (available on SimTel.Net, courtesy of Andrew Zabolotny)
-installed in order to build the dynamic modules; if you encounter errors, you
-can fetch a patched version from my web page.
-The demos are not built automagically (see Pitfalls below). To make them, use
-one of the following rules:
-	Static:
-	    gcc -o OUT.exe IN.c -lglut -lglu -lgl
-	Dynamic:
-	    gcc -o OUT.exe -include dmesadxe.h IN.c -ligl -liglu -liglut -ldl
-Usage of the dynamic modules requires three things:
-	- include DMESADXE.H in one of the sources, so references inside
-	  dynamic modules will get resolved (or use `-include' directive)
-	- link against import libraries (libIgl*.a) and LIBDL.A, which will do
-	  the dynamic linkage job for you
-	- put the DXEs somewhere along the library path (LD_LIBRARY_PATH) or
-	  in the current directory
+Unzip and type:
+
+	make -f Makefile.DJ [OPTIONS...]
+
+Available options:
+
+     Environment variables:
+	CPU		optimize for the given processor.
+			default = k6
+	BIG_OPT=1	crazy optimizations; not very useful, though...
+			default = no
+	GLIDE		absolute path to Glide library; used with FX.
+			default = $(TOP)/include/glide3
+	FX=1		build for 3dfx Glide3; use it if you have the Glide
+			SDK (designed for your platform), and, of course, a
+			3dfx card... Note that this disables compilation of
+			actual DMesa code, as Glide does all the stuff!
+			default = no
+	HAVE_X86=1	optimize for i386.
+			default = no
+	HAVE_MMX=1	MMX instructions; use only if you assembler/compiler
+			supports MMX instruction set; backwards compatibility
+			with older processors is still preserved.
+			default = no
+	HAVE_SSE=1	(see HAVE_MMX)
+			default = no
+	HAVE_3DNOW=1	(see HAVE_MMX)
+			default = no
+
+     Targets:
+	all:		build everything
+	libgl:		build GL
+	libglu:		build GLU
+	libglut:	build GLUT
+	clean:		remove object files
+	realclean:	remove all generated files
+
+
 
 Tested on:
-	CPU:		Intel Pentium w/ MMX @166 MHz
-	Mainboard:	ViA Apollo VP2 w/ 128 MB SDRAM
-	Video card:	Matrox Millenium 2064W w/ 2048 kB WRAM, BIOS v3.0
-	DJGPP:		djdev 2.03 + gcc v3.0.3 + make v3.79
+	CPU:		K6-2 (CXT) @500(412.5) MHz
+	Mainboard:	ViA Apollo VP2/97 w/ 128 MB SDRAM
+	Video card:	PowerColor Evil King3 (Voodoo3 3000) w/ 16384 kB SDRAM
+	DJGPP:		djdev 2.03 + gcc v3.1 + make v3.79.1
 
 
 
-libGL (the core):
-~~~~~~~~~~~~~~~~~
+FAQ:
+~~~~
 
-Of course, MESA 4.0 core sources are required. It will probably work with
-MESA 3.5, but not a chance with earlier versions due to major changes to the
-MESA driver interface and the directory tree. All should compile succesfully.
+1. Compilation
 
-The driver has its origins in ddsample.c, written by Brian Paul and found by
-me in MESA 3.4.2. I touched almost all the functions, changing the coding
-style :-( Sorry!
+   Q) I tried to run `make' and it exits because `gcc' complains it cannot find
+      some stupid file.
+   A) You need LFN support.
+   A) If FX is defined, pay attention to Glide path.
 
-Pitfalls:
-1. The current version supports only RGB[A] modes, for it made no sense to me
-   to endorse color-index (aka palette) modes.
-2. Single-buffered is not allowed at all. Until I can find a way to use *REAL*
-   hardware acceleration, it won't get implemented.
-3. Another weird "feature" is that buffer width must be multiple of 4 (I'm a
-   lazy programmer and I found that the easiest way to keep buffer handling at
-   peak performance ;-).
+2. Dynamic modules
 
+   Q) What are you mumbling about dynamic modules?
+   A) You must have the DXE2 package (available on SimTel.Net, courtesy of
+      Andrew Zabolotny) installed in order to build the dynamic modules.
 
+   Q) I have DXE2, but I couln'd build the `dxe2gen.exe'.
+   Q) I built `dxe2gen.exe', but it doesn't do the job right.
+   A) There is a patched version on my web page.
 
-libGLU:
-~~~~~~~
+   Q) DXE2 modules give me headaches...
+   A) The DXE2 modules are not compulsory. The static libraries are still built
+      and you can use them in the old-fashioned, classic way.
 
-Mesa GLU sources are required.
+   Q) Okay, DXE2 modules are built. How can I use them?
+   A) Usage of the dynamic modules requires three things:
+	- include DMESADXE.H in one of the sources, so references inside
+	  dynamic modules will get resolved (or use `-include' directive).
+	- link against import libraries (libI*.a) and LIBDL.A, which will do
+	  the dynamic linkage job for you
+	- put the DXEs somewhere along the library path (LD_LIBRARY_PATH) or
+	  in the current directory
+      For example:
+	gcc -o OUT.exe -include dmesadxe.h IN.c -ligl -liglu -liglut -ldl
+
+   Q) The application dies with "Abort!" due to unresolved symbols.
+   A) This is bad! Extract the unresolved symbol list from this module. For
+      example:
+	dxe2gen --show-unres gl.dxe > u
+      Check DMESADXE.H; the symbols in `u' must either be present here or be
+      exported from another module that has to be loaded before your faulting
+      one. Then recompile.
+
+3. Using Mesa for DJGPP
+
+   Q) Does this build work in Win9x?
+   A) Yes.
+
+   Q) Does it work under NT (W2k, XP) core?
+   A) Uh... probably not!
+
+   Q) I made a simple application and it does nothing. It exits right away. Not
+      even a blank screen.
+   A) The current version supports only RGB[A] modes, for it made no sense to
+      me to endorse color-index (aka palette) modes.
+   A) Single-buffered is not allowed at all. Until I can find a way to use
+      *REAL* hardware acceleration, it won't get implemented.
+   A) Another weird "feature" is that buffer width must be multiple of 4 (I'm a
+      lazy programmer and I found that the easiest way to keep buffer handling
+      at peak performance ;-).
+
+   Q) My demo doesn't display text. I know I used the glut font routines!
+   A) Then you probably use GLUT as a DXE. Well, there is no direct access to
+      variables due to the way DXE works. Read the documentation. The author of
+      GLUT took this into account for _WIN32 DLL's only; I don't want to modify
+      his headers. The only workaround is to link GLUT the old way :-(
+
+   Q) The DJGPP port of Mesa is so SLOOOW! The Win32 OpenGL performs so much
+      better...
+   A) Is that a question? If you have a Voodoo3/Banshee card, you're lucky. The
+      Glide port is on my web page. If you haven't, sorry; everything is done
+      in software. Suggestions?
+
+   Q) I have a super/mega/ultra monitor and all you can do is 60Hz? My eyes are
+      leaking from the orbits...
+   A) If you were compiling for Glide, see Glide info. If not, be aware that
+      refresh rate control works only for VESA 3.0. The environment variable
+      DMESA_REFRESH sets the default screen refresh. For example:
+	set DMESA_REFRESH=75
 
 
 
@@ -85,7 +159,7 @@ Well, this "skeletal" GLUT implementation is not mine. Thanks should go to
 Bernhard Tschirren, Mark Kilgard, Brian Paul and probably others (or probably
 not ;-). I only changed it to be self-standing (Allegro-free). The keyboard,
 mouse and timer drivers were inspired from an old project of mine (D3Xl) and
-fixed with some Allegro "infusions"; I deeply thank to Shawn Hargreaves et co.
+fixed with many Allegro "infusions"; I deeply thank to Shawn Hargreaves et co.
 
 My keyboard driver used only scancodes, but since GLUT requires ASCII values
 for keys, I borrowed the translation tables (and maybe more) from Allegro.
@@ -121,6 +195,10 @@ History:
 ~~~~~~~~
 
 v1.0	mar-2002	initial release
+v1.1	sep-2002	+ added 3dfx Glide3 support
+			+ added refresh rate control
+			+ added fonts in glut
+			* lots of minor changes
 
 
 
diff --git a/src/glu/mesa/Makefile.DJ b/src/glu/mesa/Makefile.DJ
index 5b9ae7b6f0..f05eca14c8 100644
--- a/src/glu/mesa/Makefile.DJ
+++ b/src/glu/mesa/Makefile.DJ
@@ -20,31 +20,45 @@
 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-# DOS/DJGPP glu makefile v1.0 for Mesa 4.0
+# DOS/DJGPP glu makefile v1.1 for Mesa 4.0
 #
 #  Copyright (C) 2002 - Borca Daniel
 #  Email : dborca@yahoo.com
 #  Web   : http://www.geocities.com/dborca
 
 
+#
+#  Available options:
+#
+#    Environment variables:
+#	CFLAGS
+#
+#    Targets:
+#	all:		build GLU
+#	clean:		remove object files
+#
+
+
+
 .PHONY: all clean
 
 TOP = ..
+LIBDIR = $(TOP)/lib
+GLU_LIB = libglu.a
+GLU_DXE = glu.dxe
+GLU_IMP = libiglu.a
+
 CC = gcc
-CFLAGS = -I$(TOP)/include -Wall -W -Wno-unused -mcpu=$(CPU) -ffast-math -O2
+CFLAGS += -I$(TOP)/include
+
 AR = ar
-ARFLAGS = ruv
-LIBDIR = $(TOP)/lib
+ARFLAGS = ru
 
-ifeq ($(wildcard $(DJDIR)/lib/dxe2.ld),)
-DXE2GEN =
-else
+ifneq ($(wildcard $(DJDIR)/lib/dxe2.ld),)
 DXE2GEN = $(wildcard $(addsuffix /dxe2gen.exe,$(subst ;, ,$(PATH))))
 endif
 
-GLU_LIB = libglu.a
-GLU_DXE = glu.dxe
-GLU_IMP = libiglu.a
+RM = del
 
 CORE_SOURCES = \
 	glu.c \
@@ -64,7 +78,7 @@ SOURCES = $(CORE_SOURCES)
 OBJECTS = $(SOURCES:.c=.o)
 
 .c.o:
-	gcc -o $@ -c $(CFLAGS) $<
+	$(CC) -o $@ -c $(CFLAGS) $<
 
 all: $(LIBDIR)/$(GLU_LIB) $(LIBDIR)/$(GLU_DXE) $(LIBDIR)/$(GLU_IMP)
 
@@ -76,10 +90,10 @@ ifeq ($(DXE2GEN),)
 	$(warning Missing DXE2GEN and/or DXE2.LD! You must have DXE2GEN)
 	$(warning somewhere in PATH, and DXE2.LD in DJGPP/LIB directory.)
 else
-	dxe2gen -o $(LIBDIR)/$(GLU_DXE) -I $(LIBDIR)/$(GLU_IMP) $(OBJECTS) -D "Mesa DOS GLU" -U
+	-dxe2gen -o $(LIBDIR)/$(GLU_DXE) -I $(LIBDIR)/$(GLU_IMP) $(OBJECTS) -E djgpp_ -E glu -D "Mesa DJGPP GLU" -U
 endif
 
 clean:
-	-$(RM) *.o
+	-$(RM) $(subst /,\,*.o)
 
-include depend
+-include depend
diff --git a/src/glut/dos/Makefile.DJ b/src/glut/dos/Makefile.DJ
index 02bc31b10c..698c80ce3c 100644
--- a/src/glut/dos/Makefile.DJ
+++ b/src/glut/dos/Makefile.DJ
@@ -20,36 +20,65 @@
 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-# DOS/DJGPP glut makefile v1.0 for Mesa 4.0
+# DOS/DJGPP glut makefile v1.1 for Mesa 4.0
 #
 #  Copyright (C) 2002 - Borca Daniel
 #  Email : dborca@yahoo.com
 #  Web   : http://www.geocities.com/dborca
 
 
+#
+#  Available options:
+#
+#    Environment variables:
+#	CFLAGS
+#
+#	GLIDE		absolute path to Glide SDK; used with FX.
+#			default = $(TOP)/include/glide3
+#	FX=1		build for 3dfx Glide3; use it if you have the glide
+#			SDK (designed for your platform), and, of course, a
+#			3dfx card... Note that this disables compilation of
+#			actual DMesa code, as Glide does all the stuff!
+#			default = no
+#	MARK		absolute path to original GLUT.
+#			default = $(TOP)/src-glut
+#
+#    Targets:
+#	all:		build GLUT
+#	clean:		remove object files
+#
+
+
+
 .PHONY: all clean
 
 TOP = ..
+GLIDE ?= $(TOP)/include/glide3
+MARK ?= $(TOP)/src-glut
+LIBDIR = $(TOP)/lib
+GLUT_LIB = libglut.a
+GLUT_DXE = glut.dxe
+GLUT_IMP = libiglut.a
+
 CC = gcc
-CFLAGS = -I$(TOP)/include -Wall -W -Wno-unused -mcpu=$(CPU) -ffast-math -O2
+CFLAGS += -I$(TOP)/include -I$(MARK)
+ifdef FX
+CFLAGS += -D__DOS__ -I$(GLIDE) -DFX -DFX_GLIDE3 -DFXMESA_USE_ARGB
+endif
+
 AR = ar
-ARFLAGS = ruv
-LIBDIR = $(TOP)/lib
+ARFLAGS = ru
 
-ifeq ($(wildcard $(DJDIR)/lib/dxe2.ld),)
-DXE2GEN =
-else
+ifneq ($(wildcard $(DJDIR)/lib/dxe2.ld),)
 DXE2GEN = $(wildcard $(addsuffix /dxe2gen.exe,$(subst ;, ,$(PATH))))
 endif
 
-GLUT_LIB = libglut.a
-GLUT_DXE = glut.dxe
-GLUT_IMP = libiglut.a
+RM = del
 
 CORE_SOURCES = \
+	bitmap.c \
 	callback.c \
 	color.c \
-	font.c \
 	globals.c \
 	init.c \
 	menu.c \
@@ -66,16 +95,25 @@ PC_HW_SOURCES = \
 	PC_HW/pc_timer.c \
 	PC_HW/pc_irq.S
 
-SOURCES = $(CORE_SOURCES) $(PC_HW_SOURCES)
+MARK_SOURCES = \
+	$(MARK)/glut_8x13.c \
+	$(MARK)/glut_9x15.c \
+	$(MARK)/glut_hel10.c \
+	$(MARK)/glut_hel12.c \
+	$(MARK)/glut_hel18.c \
+	$(MARK)/glut_tr10.c \
+	$(MARK)/glut_tr24.c
+
+SOURCES = $(CORE_SOURCES) $(PC_HW_SOURCES) $(MARK_SOURCES)
 
 OBJECTS = $(addsuffix .o,$(basename $(SOURCES)))
 
 .c.o:
-	gcc -o $@ -c $(CFLAGS) $<
+	$(CC) -o $@ -c $(CFLAGS) $<
 .S.o:
-	gcc -o $@ -c $(CFLAGS) $<
+	$(CC) -o $@ -c $(CFLAGS) $<
 .s.o:
-	gcc -o $@ -c $(CFLAGS) $(<:.s=.S)
+	$(CC) -o $@ -c $(CFLAGS) -x assembler-with-cpp $<
 
 all: $(LIBDIR)/$(GLUT_LIB) $(LIBDIR)/$(GLUT_DXE) $(LIBDIR)/$(GLUT_IMP)
 
@@ -87,28 +125,12 @@ ifeq ($(DXE2GEN),)
 	$(warning Missing DXE2GEN and/or DXE2.LD! You must have DXE2GEN)
 	$(warning somewhere in PATH, and DXE2.LD in DJGPP/LIB directory.)
 else
-	dxe2gen -o $(LIBDIR)/$(GLUT_DXE) -I $(LIBDIR)/$(GLUT_IMP) $(OBJECTS) -D "Mesa DOS GLUT" -U
+	-dxe2gen -o $(LIBDIR)/$(GLUT_DXE) -I $(LIBDIR)/$(GLUT_IMP) $(OBJECTS) -E djgpp_ -E glut -D "Mesa DJGPP GLUT" -U
 endif
 
 clean:
-	-$(RM) *.o
-	-$(RM) PC_HW\*.o
-
-callback.o: callback.c ../include/GL/glut.h internal.h PC_HW/pc_hw.h
-color.o: color.c ../include/GL/glut.h
-font.o: font.c ../include/GL/glut.h
-globals.o: globals.c ../include/GL/glut.h internal.h PC_HW/pc_hw.h
-init.o: init.c ../include/GL/glut.h internal.h PC_HW/pc_hw.h
-menu.o: menu.c ../include/GL/glut.h
-models.o: models.c ../include/GL/glut.h
-overlay.o: overlay.c ../include/GL/glut.h
-state.o: state.c ../include/GL/glut.h internal.h PC_HW/pc_hw.h
-teapot.o: teapot.c ../include/GL/glut.h
-window.o: window.c ../include/GL/glut.h ../include/GL/dmesa.h internal.h \
-  PC_HW/pc_hw.h
-
-PC_HW/pc_hw.o: PC_HW/pc_hw.c PC_HW/pc_hw.h
-PC_HW/pc_keyb.o: PC_HW/pc_keyb.c PC_HW/pc_hw.h
-PC_HW/pc_mouse.o: PC_HW/pc_mouse.c PC_HW/pc_hw.h
-PC_HW/pc_timer.o: PC_HW/pc_timer.c PC_HW/pc_hw.h
-PC_HW/pc_irq.o: PC_HW/pc_irq.S
+	-$(RM) $(subst /,\,*.o)
+	-$(RM) $(subst /,\,PC_HW/*.o)
+	-$(RM) $(subst /,\,$(MARK)/*.o)
+
+-include depend
diff --git a/src/glut/dos/PC_HW/pc_hw.h b/src/glut/dos/PC_HW/pc_hw.h
index 47fcf78d0c..fd0e777953 100644
--- a/src/glut/dos/PC_HW/pc_hw.h
+++ b/src/glut/dos/PC_HW/pc_hw.h
@@ -1,5 +1,5 @@
 /*
- * PC/HW routine collection v1.0 for DOS/DJGPP
+ * PC/HW routine collection v1.1 for DOS/DJGPP
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -45,8 +45,8 @@ void *pc_malloc (size_t size);
 /*
  * IRQ
  */
-#define ENABLE()  __asm__ __volatile__ ("sti")
-#define DISABLE() __asm__ __volatile__ ("cli")
+#define ENABLE()  __asm __volatile ("sti")
+#define DISABLE() __asm __volatile ("cli")
 
 extern int pc_install_irq (int i, int (*handler) ());
 extern int pc_remove_irq (int i);
diff --git a/src/glut/dos/PC_HW/pc_keyb.c b/src/glut/dos/PC_HW/pc_keyb.c
index 50ef94b797..fb22923d63 100644
--- a/src/glut/dos/PC_HW/pc_keyb.c
+++ b/src/glut/dos/PC_HW/pc_keyb.c
@@ -1,5 +1,5 @@
 /*
- * PC/HW routine collection v1.0 for DOS/DJGPP
+ * PC/HW routine collection v1.1 for DOS/DJGPP
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -201,7 +201,7 @@ static unsigned char numlock_table[10] =
 /* kb_wait_for_write_ready:
  *  Wait for the keyboard controller to set the ready-for-write bit.
  */
-static __inline__ int kb_wait_for_write_ready (void)
+static __inline int kb_wait_for_write_ready (void)
 {
  int timeout = 4096;
 
@@ -215,7 +215,7 @@ static __inline__ int kb_wait_for_write_ready (void)
 /* kb_wait_for_read_ready:
  *  Wait for the keyboard controller to set the ready-for-read bit.
  */
-static __inline__ int kb_wait_for_read_ready (void)
+static __inline int kb_wait_for_read_ready (void)
 {
  int timeout = 16384;
 
@@ -229,7 +229,7 @@ static __inline__ int kb_wait_for_read_ready (void)
 /* kb_send_data:
  *  Sends a byte to the keyboard controller. Returns 1 if all OK.
  */
-static __inline__ int kb_send_data (unsigned char data)
+static __inline int kb_send_data (unsigned char data)
 {
  int resends = 4;
  int timeout, temp;
@@ -357,9 +357,9 @@ static void handle_code (int scancode, int keycode)
  in_a_terrupt--;
 } ENDOFUNC(handle_code)
 
-static __inline__ void satisfy (void)
+static __inline void satisfy (void)
 {
- __asm__("\n\
+ __asm("\n\
 		inb	$0x61, %%al	\n\
 		movb	%%al, %%ah	\n\
 		orb	$0x80, %%al	\n\
@@ -404,7 +404,7 @@ static int keyboard ()
        only SIGINT (but not Ctrl-Break)
        calls the destructors and will safely clean up
     */
-    __asm__("\n\
+    __asm("\n\
 		movb	$0x79, %%al		\n\
 		call	___djgpp_hw_exception	\n\
     ":::"%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
diff --git a/src/glut/dos/PC_HW/pc_mouse.c b/src/glut/dos/PC_HW/pc_mouse.c
index 72d3886d5c..5a04cf2191 100644
--- a/src/glut/dos/PC_HW/pc_mouse.c
+++ b/src/glut/dos/PC_HW/pc_mouse.c
@@ -1,5 +1,5 @@
 /*
- * PC/HW routine collection v1.0 for DOS/DJGPP
+ * PC/HW routine collection v1.1 for DOS/DJGPP
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -17,7 +17,7 @@
 
 #define CLEAR_MICKEYS() \
         do { \
-            __asm__ __volatile__ ("movw $0xb, %%ax; int $0x33":::"%eax", "%ecx", "%edx"); \
+            __asm __volatile ("movw $0xb, %%ax; int $0x33":::"%eax", "%ecx", "%edx"); \
             ox = oy = 0; \
         } while (0)
 
@@ -71,7 +71,7 @@ void pc_remove_mouse (void)
 {
  if (mouse_callback) {
     pc_clexit(pc_remove_mouse);
-    __asm__("\n\
+    __asm("\n\
 		movl	%%edx, %%ecx	\n\
 		shrl	$16, %%ecx	\n\
 		movw	$0x0304, %%ax	\n\
@@ -97,7 +97,7 @@ int pc_install_mouse (void)
  }
 
  /* reset mouse and get status */
- __asm__("\n\
+ __asm("\n\
 		xorl	%%eax, %%eax	\n\
 		int	$0x33		\n\
 		andl	%%ebx, %%eax	\n\
@@ -133,7 +133,7 @@ int pc_install_mouse (void)
  }
 
  /* try to hook a call-back */
- __asm__("\n\
+ __asm("\n\
 		pushl	%%ds		\n\
 		pushl	%%es		\n\
 		movw	$0x0303, %%ax	\n\
@@ -225,7 +225,7 @@ void pc_unscare_mouse (void)
  /* not implemented */
 }
 
-__asm__("\n\
+__asm("\n\
 		.balign	4				\n\
 		.global	_mouse_wrapper			\n\
 _mouse_wrapper:						\n\
diff --git a/src/glut/dos/bitmap.c b/src/glut/dos/bitmap.c
new file mode 100644
index 0000000000..11d539a19a
--- /dev/null
+++ b/src/glut/dos/bitmap.c
@@ -0,0 +1,56 @@
+
+/* Copyright (c) Mark J. Kilgard, 1994. */
+
+/* This program is freely distributable without licensing fees
+   and is provided without guarantee or warrantee expressed or
+   implied. This program is -not- in the public domain. */
+
+#include "glutbitmap.h"
+
+void APIENTRY 
+glutBitmapCharacter(GLUTbitmapFont font, int c)
+{
+  const BitmapCharRec *ch;
+  BitmapFontPtr fontinfo;
+  GLint swapbytes, lsbfirst, rowlength;
+  GLint skiprows, skippixels, alignment;
+
+#if defined(_WIN32)
+  fontinfo = (BitmapFontPtr) __glutFont(font);
+#else
+  fontinfo = (BitmapFontPtr) font;
+#endif
+
+  if (c < fontinfo->first ||
+    c >= fontinfo->first + fontinfo->num_chars)
+    return;
+  ch = fontinfo->ch[c - fontinfo->first];
+  if (ch) {
+    /* Save current modes. */
+    glGetIntegerv(GL_UNPACK_SWAP_BYTES, &swapbytes);
+    glGetIntegerv(GL_UNPACK_LSB_FIRST, &lsbfirst);
+    glGetIntegerv(GL_UNPACK_ROW_LENGTH, &rowlength);
+    glGetIntegerv(GL_UNPACK_SKIP_ROWS, &skiprows);
+    glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &skippixels);
+    glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment);
+    /* Little endian machines (DEC Alpha for example) could
+       benefit from setting GL_UNPACK_LSB_FIRST to GL_TRUE
+       instead of GL_FALSE, but this would require changing the
+       generated bitmaps too. */
+    glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
+    glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+    glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
+    glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glBitmap(ch->width, ch->height, ch->xorig, ch->yorig,
+      ch->advance, 0, ch->bitmap);
+    /* Restore saved modes. */
+    glPixelStorei(GL_UNPACK_SWAP_BYTES, swapbytes);
+    glPixelStorei(GL_UNPACK_LSB_FIRST, lsbfirst);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, rowlength);
+    glPixelStorei(GL_UNPACK_SKIP_ROWS, skiprows);
+    glPixelStorei(GL_UNPACK_SKIP_PIXELS, skippixels);
+    glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
+  }
+}
diff --git a/src/glut/dos/window.c b/src/glut/dos/window.c
index f43533ce5f..384e10a03b 100644
--- a/src/glut/dos/window.c
+++ b/src/glut/dos/window.c
@@ -19,7 +19,7 @@
  */
 
 /*
- * DOS/DJGPP glut driver v1.0 for Mesa 4.0
+ * DOS/DJGPP glut driver v1.1 for Mesa 4.0
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -28,16 +28,26 @@
 
 
 #include "GL/glut.h"
+#ifndef FX
 #include "GL/dmesa.h"
+#else
+#include "GL/fxmesa.h"
+#endif
 #include "internal.h"
 
 
 
 static int window;
 
+#ifndef FX
 static DMesaVisual  visual  = NULL;
 static DMesaContext context = NULL;
 static DMesaBuffer  buffer[MAX_WINDOWS];
+#else
+static void *visual = NULL;
+static fxMesaContext context = NULL;
+static int fx_attrib[32];
+#endif
 
 
 
@@ -48,8 +58,12 @@ static void clean (void)
  for (i=0; i<MAX_WINDOWS; i++) {
      glutDestroyWindow(i+1);
  }
+#ifndef FX
  if (context) DMesaDestroyContext(context);
  if (visual)  DMesaDestroyVisual(visual);
+#else
+ if (context) fxMesaDestroyContext(context);
+#endif
 
  pc_close_stdout();
  pc_close_stderr();
@@ -76,6 +90,7 @@ int APIENTRY glutCreateWindow (const char *title)
        screen_h = 768;
     }
 
+#ifndef FX
     if ((visual=DMesaCreateVisual(screen_w, screen_h, DEFAULT_BPP,
                                   g_display_mode & GLUT_DOUBLE,
                                   g_display_mode & GLUT_DEPTH  ?DEPTH_SIZE  :0,
@@ -88,12 +103,24 @@ int APIENTRY glutCreateWindow (const char *title)
        DMesaDestroyVisual(visual);
        return 0;
     }
+#else
+    i = 0;
+    if (g_display_mode & GLUT_DOUBLE) fx_attrib[i++] = FXMESA_DOUBLEBUFFER;
+    if (g_display_mode & GLUT_DEPTH) { fx_attrib[i++] = FXMESA_DEPTH_SIZE; fx_attrib[i++] = DEPTH_SIZE; }
+    if (g_display_mode & GLUT_STENCIL) { fx_attrib[i++] = FXMESA_STENCIL_SIZE; fx_attrib[i++] = STENCIL_SIZE; }
+    if (g_display_mode & GLUT_ACCUM) { fx_attrib[i++] = FXMESA_ACCUM_SIZE; fx_attrib[i++] = ACCUM_SIZE; }
+    fx_attrib[i] = FXMESA_NONE;
+    if ((context=fxMesaCreateBestContext(-1, screen_w, screen_h, fx_attrib))==NULL) {
+       return 0;
+    }
+#endif
     
     pc_open_stdout();
     pc_open_stderr();
     pc_atexit(clean);
  }
 
+#ifndef FX
  for (i=0; i<MAX_WINDOWS; i++) {
      if (!buffer[i]) {
         DMesaBuffer b;
@@ -115,6 +142,11 @@ int APIENTRY glutCreateWindow (const char *title)
  }
 
  return 0;
+#else
+ fxMesaMakeCurrent(context);
+
+ return 1;
+#endif
 }
 
 
@@ -126,10 +158,12 @@ int APIENTRY glutCreateSubWindow (int win, int x, int y, int width, int height)
 
 void APIENTRY glutDestroyWindow (int win)
 {
+#ifndef FX
  if (buffer[win-1]) {
     DMesaDestroyBuffer(buffer[win-1]);
     buffer[win-1] = NULL;
  }
+#endif
 }
 
 
@@ -142,7 +176,11 @@ void APIENTRY glutPostRedisplay (void)
 void APIENTRY glutSwapBuffers (void)
 {
  if (g_mouse) pc_scare_mouse();
+#ifndef FX
  DMesaSwapBuffers(buffer[window]);
+#else
+ fxMesaSwapBuffers();
+#endif
  if (g_mouse) pc_unscare_mouse();
 }
 
@@ -171,15 +209,18 @@ void APIENTRY glutSetIconTitle (const char *title)
 
 void APIENTRY glutPositionWindow (int x, int y)
 {
+#ifndef FX
  if (DMesaViewport(buffer[window], x, y, g_width, g_height)) {
     g_xpos = x;
     g_ypos = y;
  }
+#endif
 }
 
 
 void APIENTRY glutReshapeWindow (int width, int height)
 {
+#ifndef FX
  if (DMesaViewport(buffer[window], g_xpos, g_ypos, width, height)) {
     g_width = width;
     g_height = height;
@@ -189,6 +230,7 @@ void APIENTRY glutReshapeWindow (int width, int height)
        glViewport(0, 0, width, height);
     }
  }
+#endif
 }
 
 
diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index 5855f04f3e..148d7402e2 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -23,7 +23,7 @@
  */
 
 /*
- * DOS/DJGPP device driver v1.0 for Mesa 4.0
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -38,7 +38,6 @@
 #include "context.h"
 #include "GL/dmesa.h"
 #include "extensions.h"
-#inlcude "imports.h"
 #include "macros.h"
 #include "matrix.h"
 #include "mmath.h"
@@ -80,10 +79,9 @@ struct dmesa_buffer {
    GLframebuffer gl_buffer;     /* The depth, stencil, accum, etc buffers */
    void *the_window;            /* your window handle, etc */
 
-   int bypp;                    /* bytes per pixel */
    int xpos, ypos;              /* position */
    int width, height;           /* size in pixels */
-   int bwidth, len;             /* bytes in a line, then total */
+   int bypp, stride, bytes;     /* bytes per pixel, in a line, then total */
 };
 
 /*
@@ -413,7 +411,7 @@ static swrast_tri_func dmesa_choose_tri_function (GLcontext *ctx)
 
  if (ctx->RenderMode != GL_RENDER)  return (swrast_tri_func) NULL;
  if (ctx->Polygon.SmoothFlag)       return (swrast_tri_func) NULL;
- if (ctx->Texture._EnabledUnits)    return (swrast_tri_func) NULL;
+ if (ctx->Texture._ReallyEnabled)   return (swrast_tri_func) NULL;
 
  if (ctx->Light.ShadeModel==GL_SMOOTH
      && swrast->_RasterMask==DEPTH_BIT
@@ -494,7 +492,7 @@ static void clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
  if (*colorMask==0xffffffff) {
     if (mask & DD_BACK_LEFT_BIT) {
        if (all) {
-          vl_clear(b->the_window, b->len, c->ClearColor);
+          vl_clear(b->the_window, b->bytes, c->ClearColor);
        } else {
           vl_rect(b->the_window, x, y, width, height, c->ClearColor);
        }
@@ -512,12 +510,24 @@ static void clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
 /*
  * Set the current reading buffer.
  */
-static void set_buffer (GLcontext *ctx, GLframebuffer *buffer, GLenum mode)
+static void set_read_buffer (GLcontext *ctx, GLframebuffer *buffer,
+                             GLenum mode)
 {
+   /*
+     XXX this has to be fixed
+   */
+}
+
+
+
 /*
- DMesaContext c = (DMesaContext)ctx->DriverCtx;
- dmesa_update_state(ctx);
-*/
+ * Set the destination/draw buffer.
+ */
+static void set_draw_buffer (GLcontext *ctx, GLenum mode)
+{
+   /*
+     XXX this has to be fixed
+   */
 }
 
 
@@ -541,7 +551,7 @@ static const GLubyte* get_string (GLcontext *ctx, GLenum name)
 {
  switch (name) {
         case GL_RENDERER:
-             return (const GLubyte *)"Mesa DOS\0DJGPP port (c) Borca Daniel 31-mar-2002";
+             return (const GLubyte *)"Mesa DJGPP\0port (c) Borca Daniel 3-sep-2002";
         default:
              return NULL;
  }
@@ -627,7 +637,6 @@ void dmesa_init_pointers (GLcontext *ctx)
  ctx->Driver.CopyPixels = _swrast_CopyPixels;
  ctx->Driver.DrawPixels = _swrast_DrawPixels;
  ctx->Driver.ReadPixels = _swrast_ReadPixels;
- ctx->Driver.DrawBuffer = _swrast_DrawBuffer;
 
  /* Software texture functions:
   */
@@ -659,6 +668,7 @@ void dmesa_init_pointers (GLcontext *ctx)
 
  /* Statechange callbacks:
   */
+ ctx->Driver.SetDrawBuffer = set_draw_buffer;
  ctx->Driver.ClearColor = clear_color;
 
  /* Initialize the TNL driver interface:
@@ -686,7 +696,7 @@ static void dmesa_update_state (GLcontext *ctx, GLuint new_state)
  _ac_InvalidateState(ctx, new_state);
  _tnl_InvalidateState(ctx, new_state);
 
- swdd->SetBuffer = set_buffer;
+ swdd->SetReadBuffer = set_read_buffer;
 
  /* RGB(A) span/pixel functions */
  swdd->WriteRGBASpan = write_rgba_span;
@@ -717,6 +727,12 @@ DMesaVisual DMesaCreateVisual (GLint width, GLint height, GLint colDepth,
  DMesaVisual v;
  GLint redBits, greenBits, blueBits, alphaBits;
 
+ int refresh;
+ char *var = getenv("DMESA_REFRESH");
+ if ((var == NULL) || ((refresh=atoi(var)) == 0)) {
+    refresh = 60;
+ }
+
  if (!dbFlag) {
     return NULL;
  }
@@ -743,7 +759,7 @@ DMesaVisual DMesaCreateVisual (GLint width, GLint height, GLint colDepth,
              return NULL;
  }
 
- if (vl_video_init(width, height, colDepth)!=0) {
+ if (vl_video_init(width, height, colDepth, refresh) != 0) {
     return NULL;
  }
 
@@ -776,7 +792,7 @@ DMesaVisual DMesaCreateVisual (GLint width, GLint height, GLint colDepth,
 
 void DMesaDestroyVisual (DMesaVisual v)
 {
- vl_video_exit(!0);
+ vl_video_exit();
  _mesa_destroy_visual(v->gl_visual);
  free(v);
 }
@@ -825,11 +841,9 @@ DMesaContext DMesaCreateContext (DMesaVisual visual,
  GLboolean direct = GL_FALSE;
 
  if ((c=(DMesaContext)calloc(1, sizeof(struct dmesa_context)))!=NULL) {
-    __GLimports imports;
-    _mesa_init_default_imports( &imports, (void *) c);
     c->gl_ctx = _mesa_create_context(visual->gl_visual,
                                      share ? share->gl_ctx : NULL,
-                                     &imports);
+                                     (void *)c, direct);
 
     _mesa_enable_sw_extensions(c->gl_ctx);
     _mesa_enable_1_3_extensions(c->gl_ctx);
@@ -874,8 +888,8 @@ GLboolean DMesaViewport (DMesaBuffer b,
     b->ypos = ypos;
     b->width = width;
     b->height = height;
-    b->bwidth = width * b->bypp;
-    b->len = b->bwidth * height;
+    b->stride = width * b->bypp;
+    b->bytes = b->stride * height;
     return GL_TRUE;
  }
 }
@@ -913,5 +927,7 @@ GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)
 void DMesaSwapBuffers (DMesaBuffer b)
 {
  /* copy/swap back buffer to front if applicable */
- vl_flip(b->the_window, b->bwidth, b->height);
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_swapbuffers(ctx);
+ vl_flip(b->the_window, b->stride, b->height);
 }
diff --git a/src/mesa/drivers/dos/dpmi.c b/src/mesa/drivers/dos/dpmi.c
index 0cc0a89e64..60610acddf 100644
--- a/src/mesa/drivers/dos/dpmi.c
+++ b/src/mesa/drivers/dos/dpmi.c
@@ -23,7 +23,7 @@
  */
 
 /*
- * DOS/DJGPP device driver v1.0 for Mesa 4.0
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -37,6 +37,12 @@
 
 
 
+#ifndef MAX
+#define MAX(x, y) (((x)<(y))?(y):(x))
+#endif
+
+
+
 /* _create_linear_mapping:
  *  Maps a physical address range into linear memory.
  */
diff --git a/src/mesa/drivers/dos/dpmiint.h b/src/mesa/drivers/dos/dpmiint.h
index d0171fb100..c32fadbf00 100644
--- a/src/mesa/drivers/dos/dpmiint.h
+++ b/src/mesa/drivers/dos/dpmiint.h
@@ -23,7 +23,7 @@
  */
 
 /*
- * DOS/DJGPP device driver v1.0 for Mesa 4.0
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -34,14 +34,6 @@
 #ifndef DPMIINT_H_included
 #define DPMIINT_H_included
 
-#ifndef NULL
-#define NULL 0
-#endif
-
-#ifndef MAX
-#define MAX(x, y) (((x)<(y))?(y):(x))
-#endif
-
 int _create_selector (int *segment, unsigned long base, int size);
 void _remove_selector (int *segment);
 
diff --git a/src/mesa/drivers/dos/vesa/vesa.c b/src/mesa/drivers/dos/vesa/vesa.c
new file mode 100644
index 0000000000..c43b6ec428
--- /dev/null
+++ b/src/mesa/drivers/dos/vesa/vesa.c
@@ -0,0 +1,397 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  4.0
+ * 
+ * Copyright (C) 1999  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
+ *
+ *  Copyright (C) 2002 - Borca Daniel
+ *  Email : dborca@yahoo.com
+ *  Web   : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+#include <string.h>
+#include <stubinfo.h>
+#include <sys/exceptn.h>
+#include <sys/segments.h>
+#include <sys/farptr.h>
+#include <sys/movedata.h>
+
+#include "vesa.h"
+#include "../dpmiint.h"
+
+
+
+static vl_mode modes[64];
+
+static word16 vesa_ver;
+static int banked_selector, linear_selector;
+static int oldmode = -1;
+
+
+
+/*
+ * VESA info
+ */
+#define V_SIGN     0
+#define V_MINOR    4
+#define V_MAJOR    5
+#define V_OEM_OFS  6
+#define V_OEM_SEG  8
+#define V_MODE_OFS 14
+#define V_MODE_SEG 16
+#define V_MEMORY   18
+
+/*
+ * mode info
+ */
+#define M_ATTR     0
+#define M_GRAN     4
+#define M_SCANLEN  16
+#define M_XRES     18
+#define M_YRES     20
+#define M_BPP      25
+#define M_RED      31
+#define M_GREEN    33
+#define M_BLUE     35
+#define M_PHYS_PTR 40
+
+/*
+ * VESA 3.0 CRTC timings structure
+ */
+typedef struct CRTCInfoBlock {
+        unsigned short HorizontalTotal;
+        unsigned short HorizontalSyncStart;
+        unsigned short HorizontalSyncEnd;
+        unsigned short VerticalTotal;
+        unsigned short VerticalSyncStart;
+        unsigned short VerticalSyncEnd;
+        unsigned char  Flags;
+        unsigned long  PixelClock;         /* units of Hz */
+        unsigned short RefreshRate;        /* units of 0.01 Hz */
+        unsigned char  reserved[40];
+} __PACKED__ CRTCInfoBlock;
+
+#define HNEG         (1 << 2)
+#define VNEG         (1 << 3)
+#define DOUBLESCAN   (1 << 0)
+
+
+
+/* vesa_init:
+ *  Attempts to detect VESA, check video modes and create selectors.
+ *  Returns 0 if error.
+ */
+static word16 vesa_init (void)
+{
+ __dpmi_regs r;
+ word16 *p;
+ vl_mode *q;
+ char vesa_info[512], tmp[512];
+ int maxsize = 0;
+ word32 linearfb = 0;
+
+ if (vesa_ver) {
+    return vesa_ver;
+ }
+
+ _farpokel(_stubinfo->ds_selector, 0, 0x32454256);
+ r.x.ax = 0x4f00;
+ r.x.di = 0;
+ r.x.es = _stubinfo->ds_segment;
+ __dpmi_int(0x10, &r);
+ movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512);
+ if ((r.x.ax!=0x004f) || ((_32_ vesa_info[V_SIGN])!=0x41534556)) {
+    return 0;
+ }
+
+ p = (word16 *)(((_16_ vesa_info[V_MODE_SEG])<<4) + (_16_ vesa_info[V_MODE_OFS]));
+ q = modes;
+ do {
+     if ((q->mode=_farpeekw(__djgpp_dos_sel, (unsigned long)(p++)))==0xffff) {
+        break;
+     }
+
+     r.x.ax = 0x4f01;
+     r.x.cx = q->mode;
+     r.x.di = 512;
+     r.x.es = _stubinfo->ds_segment;
+     __dpmi_int(0x10, &r);
+     movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256);
+     switch (tmp[M_BPP]) {
+            case 16:
+                 q->bpp = tmp[M_RED] + tmp[M_GREEN] + tmp[M_BLUE];
+                 break;
+            case 15:
+            case 24:
+            case 32:
+                 q->bpp = tmp[M_BPP];
+                 break;
+            default:
+                 q->bpp = 0;
+     }
+     if ((r.x.ax==0x004f) && ((tmp[M_ATTR]&0x11)==0x11) && q->bpp) {
+        q->xres = _16_ tmp[M_XRES];
+        q->yres = _16_ tmp[M_YRES];
+        q->scanlen = _16_ tmp[M_SCANLEN];
+        q->gran = (_16_ tmp[M_GRAN])<<10;
+        if (tmp[M_ATTR]&0x80) {
+#if 0
+           *(q+1) = *q++;
+#else
+           vl_mode *q1 = q + 1;
+           *q1 = *q++;
+#endif
+           linearfb = _32_ tmp[M_PHYS_PTR];
+           q->mode |= 0x4000;
+        }
+        if (maxsize<(q->scanlen*q->yres)) {
+           maxsize = q->scanlen*q->yres;
+        }
+        q++;
+     }
+ } while (TRUE);
+
+ if (q==modes) {
+    return 0;
+ }
+ if (linearfb) {
+    maxsize = ((maxsize+0xfffUL)&~0xfffUL);
+    if (_create_selector(&linear_selector, linearfb, maxsize)) {
+       return 0;
+    }
+ }
+ if (_create_selector(&banked_selector, 0xa0000, modes[0].gran)) {
+    _remove_selector(&linear_selector);
+    return 0;
+ }
+
+ for (q=modes; q->mode!=0xffff; q++) {
+     q->sel = (q->mode&0x4000) ? linear_selector : banked_selector;
+ }
+
+ return (vesa_ver = _16_ vesa_info[V_MINOR]);
+}
+
+
+
+/* vesa_finit:
+ *  Frees all resources allocated by VESA init code.
+ */
+static void vesa_finit (void)
+{
+ if (vesa_ver) {
+    _remove_selector(&linear_selector);
+    _remove_selector(&banked_selector);
+ }
+}
+
+
+
+/* vesa_getmodes:
+ *  Returns ptr to mode array.
+ */
+static vl_mode *vesa_getmodes (void)
+{
+ return (vesa_init() == 0) ? NULL : modes;
+}
+
+
+
+/* _closest_pixclk:
+ *  Uses VESA 3.0 function 0x4F0B to find the closest pixel clock to the
+ *  requested value.
+ */
+static unsigned long _closest_pixclk (int mode_no, unsigned long vclk)
+{
+ __dpmi_regs r;
+
+ r.x.ax = 0x4F0B;
+ r.h.bl = 0;
+ r.d.ecx = vclk;
+ r.x.dx = mode_no;
+ __dpmi_int(0x10, &r);
+
+ return (r.x.ax==0x004f) ? r.d.ecx : 0;
+}
+
+
+
+/* _crtc_timing:
+ *  Calculates CRTC mode timings.
+ */
+static void _crtc_timing (CRTCInfoBlock *crtc, int xres, int yres, int xadjust, int yadjust)
+{
+ int HTotal, VTotal;
+ int HDisp, VDisp;
+ int HSS, VSS;
+ int HSE, VSE;
+ int HSWidth, VSWidth;
+ int SS, SE;
+ int doublescan = FALSE;
+
+ if (yres < 400) {
+    doublescan = TRUE;
+    yres *= 2;
+ }
+
+ HDisp = xres;
+ HTotal = (int)(HDisp * 1.27) & ~0x7;
+ HSWidth = (int)((HTotal - HDisp) / 5) & ~0x7;
+ HSS = HDisp + 16;
+ HSE = HSS + HSWidth;
+ VDisp = yres;
+ VTotal = VDisp * 1.07;
+ VSWidth = (VTotal / 100) + 1;
+ VSS = VDisp + ((int)(VTotal - VDisp) / 5) + 1;
+ VSE = VSS + VSWidth;
+
+ SS = HSS + xadjust;
+ SE = HSE + xadjust;
+
+ if (xadjust < 0) {
+    if (SS < (HDisp + 8)) {
+       SS = HDisp + 8;
+       SE = SS + HSWidth;
+    }
+ } else {
+    if ((HTotal - 24) < SE) {
+       SE = HTotal - 24;
+       SS = SE - HSWidth;
+    }
+ }
+
+ HSS = SS;
+ HSE = SE;
+
+ SS = VSS + yadjust;
+ SE = VSE + yadjust;
+
+ if (yadjust < 0) {
+    if (SS < (VDisp + 3)) {
+       SS = VDisp + 3;
+       SE = SS + VSWidth;
+    }
+ } else {
+    if ((VTotal - 4) < SE) {
+       SE = VTotal - 4;
+       SS = SE - VSWidth;
+    }
+ }
+
+ VSS = SS;
+ VSE = SE;
+
+ crtc->HorizontalTotal     = HTotal;
+ crtc->HorizontalSyncStart = HSS;
+ crtc->HorizontalSyncEnd   = HSE;
+ crtc->VerticalTotal       = VTotal;
+ crtc->VerticalSyncStart   = VSS;
+ crtc->VerticalSyncEnd     = VSE;
+ crtc->Flags               = HNEG | VNEG;
+
+ if (doublescan)
+    crtc->Flags |= DOUBLESCAN;
+}
+
+
+
+/* vesa_entermode:
+ *  Attempts to enter specified video mode.
+ *
+ *  success: 0
+ *  failure: !0
+ */
+static int vesa_entermode (vl_mode *p, int refresh)
+{
+ __dpmi_regs r;
+
+ if (oldmode == -1) {
+    r.x.ax = 0x4f03;
+    __dpmi_int(0x10, &r);
+    oldmode = r.x.bx;
+ }
+
+ r.x.ax = 0x4f02;
+ r.x.bx = p->mode;
+
+ if ((vesa_ver>>8) >= 3) {
+    /* VESA 3.0 stuff for controlling the refresh rate */
+    CRTCInfoBlock crtc;
+    unsigned long vclk;
+    double f0;
+
+    _crtc_timing(&crtc, p->xres, p->yres, 0, 0);
+
+    vclk = (double)crtc.HorizontalTotal * crtc.VerticalTotal * refresh;
+    vclk = _closest_pixclk(p->mode, vclk);
+
+    if (vclk != 0) {
+       f0 = (double)vclk / (crtc.HorizontalTotal * crtc.VerticalTotal);
+       /*_current_refresh_rate = (int)(f0 + 0.5);*/
+
+       crtc.PixelClock  = vclk;
+       crtc.RefreshRate = refresh * 100;
+
+       movedata(_my_ds(), (unsigned)&crtc, _stubinfo->ds_selector, 0, sizeof(crtc));
+
+       r.x.di = 0;
+       r.x.es = _stubinfo->ds_segment;
+       r.x.bx |= 0x0800;
+    }
+ }
+
+ __dpmi_int(0x10, &r);
+
+ return (r.x.ax != 0x004f);
+}
+
+
+
+/* vesa_restore:
+ *  Restores to the mode prior to first call to vesa_entermode.
+ */
+static void vesa_restore (void)
+{
+ __dpmi_regs r;
+
+ if (oldmode != -1) {
+    r.x.ax = 0x4f02;
+    r.x.bx = oldmode;
+    __dpmi_int(0x10, &r);
+ }
+}
+
+
+
+/*
+ * the driver
+ */
+vl_driver VESA = {
+          vesa_getmodes,
+          vesa_entermode,
+          vesa_restore,
+          vesa_finit
+};
diff --git a/src/mesa/drivers/dos/vesa/vesa.h b/src/mesa/drivers/dos/vesa/vesa.h
new file mode 100644
index 0000000000..22ecbd538a
--- /dev/null
+++ b/src/mesa/drivers/dos/vesa/vesa.h
@@ -0,0 +1,43 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  4.0
+ * 
+ * Copyright (C) 1999  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
+ *
+ *  Copyright (C) 2002 - Borca Daniel
+ *  Email : dborca@yahoo.com
+ *  Web   : http://www.geocities.com/dborca
+ */
+
+
+#ifndef VESA_H_included
+#define VESA_H_included
+
+#include "../videoint.h"
+
+
+
+extern vl_driver VESA;
+
+#endif
diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c
index d31037de61..16e72cf581 100644
--- a/src/mesa/drivers/dos/video.c
+++ b/src/mesa/drivers/dos/video.c
@@ -23,7 +23,7 @@
  */
 
 /*
- * DOS/DJGPP device driver v1.0 for Mesa 4.0
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -31,52 +31,29 @@
  */
 
 
-#include <dpmi.h>
 #include <stdlib.h>
-#include <string.h>
-#include <stubinfo.h>
-#include <sys/exceptn.h>
-#include <sys/segments.h>
-#include <sys/farptr.h>
 
 #include "video.h"
-#include "dpmiint.h"
+#include "videoint.h"
+#include "vesa/vesa.h"
 
 
 
-typedef unsigned char word8;
-typedef unsigned short word16;
-typedef unsigned long word32;
-
-typedef struct vl_mode {
-        int mode;
-        int xres, yres;
-        int scanlen;
-        int bpp;
-} vl_mode;
-
-#define _16_ *(word16 *)&
-#define _32_ *(word32 *)&
-
-static int init;
-
-static vl_mode modes[64];
-
+static vl_driver *drv = &VESA;
 /* card specific: valid forever */
-static word16 vesa_ver;
-static word32 hw_granularity, hw_linearfb;
+word32 vl_hw_granularity;
 static unsigned int gran_shift, gran_mask;
 /* based upon mode specific data: valid entire session */
-static int video_selector, banked_selector, linear_selector;
+int vl_video_selector;
 static int video_scanlen, video_bypp;
 /* valid until next buffer */
-static int current_offset, current_delta, current_width;
+int vl_current_offset, vl_current_delta;
+static int current_width;
 
 
 
 /* lookup table for scaling 5 bit colors up to 8 bits */
-static int _rgb_scale_5[32] =
-{
+static int _rgb_scale_5[32] = {
    0,   8,   16,  24,  32,  41,  49,  57,
    65,  74,  82,  90,  98,  106, 115, 123,
    131, 139, 148, 156, 164, 172, 180, 189,
@@ -84,8 +61,7 @@ static int _rgb_scale_5[32] =
 };
 
 /* lookup table for scaling 6 bit colors up to 8 bits */
-static int _rgb_scale_6[64] =
-{
+static int _rgb_scale_6[64] = {
    0,   4,   8,   12,  16,  20,  24,  28,
    32,  36,  40,  44,  48,  52,  56,  60,
    64,  68,  72,  76,  80,  85,  89,  93,
@@ -98,69 +74,17 @@ static int _rgb_scale_6[64] =
 
 
 
-/*
- * virtual clearing
- */
-void (*vl_clear) (void *buffer, int len, int color);
-
-#define v_clear15 v_clear16
-extern void v_clear16 (void *buffer, int len, int color);
-extern void v_clear32 (void *buffer, int len, int color);
-__asm__("\n\
-		.text				\n\
-		.balign	4			\n\
-		.global	_v_clear16		\n\
-_v_clear16:					\n\
-		movl	12(%esp), %eax		\n\
-		pushw	%ax			\n\
-		pushw	%ax			\n\
-		popl	%eax			\n\
-		jmp	_v_clear_common		\n\
-		.balign	4			\n\
-		.global	_v_clear32		\n\
-_v_clear32:					\n\
-		movl	12(%esp), %eax		\n\
-		.balign	4			\n\
-_v_clear_common:				\n\
-		movl	8(%esp), %ecx		\n\
-		movl	4(%esp), %edx		\n\
-		shrl	$2, %ecx		\n\
-	0:					\n\
-		.balign	4			\n\
-		movl	%eax, (%edx)		\n\
-		addl	$4, %edx		\n\
-		decl	%ecx			\n\
-		jnz	0b			\n\
-		ret");
-extern void v_clear24 (void *buffer, int len, int color);
-__asm__("\n\
-		.text				\n\
-		.balign	4			\n\
-		.global	_v_clear24		\n\
-_v_clear24:					\n\
-		movl	8(%esp), %edx		\n\
-		movl	$0xaaaaaaab, %eax	\n\
-		mull	%edx			\n\
-		movl	12(%esp), %eax		\n\
-		movl	%edx, %ecx		\n\
-		movl	4(%esp), %edx		\n\
-		pushl	%ebx			\n\
-		shrl	%ecx			\n\
-		movb	18(%esp), %bl		\n\
-		.balign	4			\n\
-	0:					\n\
-		movw	%ax, (%edx)		\n\
-		movb	%bl, 2(%edx)		\n\
-		addl	$3, %edx		\n\
-		decl	%ecx			\n\
-		jnz	0b			\n\
-		popl	%ebx			\n\
-		ret");
+void (*vl_clear) (void *buffer, int bytes, int color);
+void (*vl_flip) (void *buffer, int stride, int height);
+int (*vl_mixrgba) (const unsigned char rgba[]);
+int (*vl_mixrgb) (const unsigned char rgb[]);
+void (*vl_putpixel) (void *buffer, int offset, int color);
+void (*vl_getrgba) (void *buffer, int offset, unsigned char rgba[4]);
 
 
 
-/*
- * virtual rectangle clearing
+/* vl_rect:
+ *  Clears a rectange with specified color.
  */
 void vl_rect (void *buffer, int x, int y, int width, int height, int color)
 {
@@ -177,114 +101,9 @@ void vl_rect (void *buffer, int x, int y, int width, int height, int color)
 
 
 
-/*
- * virtual dumping:
+/* vl_mixrgba*:
+ *  Color composition (w/ ALPHA).
  */
-void (*vl_flip) (void *buffer, int width, int height);
-
-extern void b_dump_virtual (void *buffer, int width, int height);
-__asm__("\n\
-		.text				\n\
-		.balign	4			\n\
-		.global	_b_dump_virtual		\n\
-_b_dump_virtual:				\n\
-		pushl	%ebx			\n\
-		pushl	%esi			\n\
-		pushl	%edi			\n\
-		pushl	%ebp			\n\
-		movl	_video_selector, %fs	\n\
-		movl	4*4+4+0(%esp), %esi	\n\
-		movl	_hw_granularity, %ebp	\n\
-		xorl	%edx, %edx		\n\
-		movl	_current_offset, %eax	\n\
-		divl	%ebp			\n\
-		movl	%edx, %edi		\n\
-		pushl	%eax			\n\
-		movl	%eax, %edx		\n\
-		xorl	%ebx, %ebx		\n\
-		movw	$0x4f05, %ax		\n\
-		int	$0x10			\n\
-		movl	_current_delta, %ebx	\n\
-		movl	5*4+4+4(%esp), %ecx	\n\
-		movl	5*4+4+8(%esp), %edx	\n\
-		shrl	$2, %ecx		\n\
-		.balign	4			\n\
-	0:					\n\
-		pushl	%ecx			\n\
-		.balign	4			\n\
-	1:					\n\
-		cmpl	%ebp, %edi		\n\
-		jb	2f			\n\
-		pushl	%ebx			\n\
-		pushl	%edx			\n\
-		incl	12(%esp)		\n\
-		movw	$0x4f05, %ax		\n\
-		movl	12(%esp), %edx		\n\
-		xorl	%ebx, %ebx		\n\
-		int	$0x10			\n\
-		popl	%edx			\n\
-		popl	%ebx			\n\
-		subl	%ebp, %edi		\n\
-	2:					\n\
-		movl	(%esi), %eax		\n\
-		addl	$4, %esi		\n\
-		movl	%eax, %fs:(%edi)	\n\
-		addl	$4, %edi		\n\
-		decl	%ecx			\n\
-		jnz	1b			\n\
-		popl	%ecx			\n\
-		addl	%ebx, %edi		\n\
-		decl	%edx			\n\
-		jnz	0b			\n\
-		popl	%eax			\n\
-		popl	%ebp			\n\
-		popl	%edi			\n\
-		popl	%esi			\n\
-		popl	%ebx			\n\
-		ret");
-extern void l_dump_virtual (void *buffer, int width, int height);
-__asm__("\n\
-		.text				\n\
-		.balign	4			\n\
-		.global	_l_dump_virtual		\n\
-_l_dump_virtual:				\n\
-		pushl	%ebx			\n\
-		pushl	%esi			\n\
-		pushl	%edi			\n\
-		movl	_video_selector, %fs	\n\
-		movl	3*4+4+0(%esp), %esi	\n\
-		movl	_current_offset, %edi	\n\
-		movl	3*4+4+4(%esp), %ecx	\n\
-		movl	3*4+4+8(%esp), %edx	\n\
-		movl	_current_delta, %ebx	\n\
-		shrl	$2, %ecx		\n\
-		.balign	4			\n\
-	0:					\n\
-		pushl	%ecx			\n\
-		.balign	4			\n\
-	1:					\n\
-		movl	(%esi), %eax		\n\
-		addl	$4, %esi		\n\
-		movl	%eax, %fs:(%edi)	\n\
-		addl	$4, %edi		\n\
-		decl	%ecx			\n\
-		jnz	1b			\n\
-		popl	%ecx			\n\
-		addl	%ebx, %edi		\n\
-		decl	%edx			\n\
-		jnz	0b			\n\
-		popl	%edi			\n\
-		popl	%esi			\n\
-		popl	%ebx			\n\
-		ret");
-
-
-
-/*
- * mix RGBA components
- */
-int (*vl_mixrgba) (const unsigned char rgba[]);
- 
 #define vl_mixrgba15 vl_mixrgb15
 #define vl_mixrgba16 vl_mixrgb16
 #define vl_mixrgba24 vl_mixrgb24
@@ -295,11 +114,9 @@ static int vl_mixrgba32 (const unsigned char rgba[])
 
 
 
-/*
- * mix RGB components
+/* vl_mixrgb*:
+ *  Color composition (w/o ALPHA).
  */
-int (*vl_mixrgb) (const unsigned char rgb[]);
- 
 static int vl_mixrgb15 (const unsigned char rgb[])
 {
  return ((rgb[0]>>3)<<10)|((rgb[1]>>3)<<5)|(rgb[2]>>3);
@@ -316,60 +133,8 @@ static int vl_mixrgb32 (const unsigned char rgb[])
 
 
 
-/*
- * vl_putpixel*
- */
-void (*vl_putpixel) (void *buffer, int offset, int color);
- 
-#define v_putpixel15 v_putpixel16
-extern void v_putpixel16 (void *buffer, int offset, int color);
-__asm__("\n\
-		.text				\n\
-		.balign	4			\n\
-		.global	_v_putpixel16		\n\
-_v_putpixel16:					\n\
-		movl	8(%esp), %edx		\n\
-		shll	%edx			\n\
-		movl	12(%esp), %eax		\n\
-		addl	4(%esp), %edx		\n\
-		movw	%ax, (%edx)		\n\
-		ret");
-extern void v_putpixel24 (void *buffer, int offset, int color);
-__asm__("\n\
-		.text				\n\
-		.balign	4			\n\
-		.global	_v_putpixel24		\n\
-_v_putpixel24:					\n\
-		movl	8(%esp), %edx		\n\
-		leal	(%edx, %edx, 2), %edx	\n\
-		movl	12(%esp), %eax		\n\
-		addl	4(%esp), %edx		\n\
-		movw	%ax, (%edx)		\n\
-		shrl	$16, %eax		\n\
-		movb	%al, 2(%edx)		\n\
-		ret");
-extern void v_putpixel32 (void *buffer, int offset, int color);
-__asm__("\n\
-		.text				\n\
-		.balign	4			\n\
-		.global	_v_putpixel32		\n\
-_v_putpixel32:					\n\
-		movl	8(%esp), %edx		\n\
-		shll	$2, %edx		\n\
-		movl	12(%esp), %eax		\n\
-		addl	4(%esp), %edx		\n\
-		movl	%eax, (%edx)		\n\
-		ret");
-
-
-
-/*
- * get pixel and decompose R, G, B, A
- */
-void (*vl_getrgba) (void *buffer, int offset, unsigned char rgba[4]);
-
-/*
- * v_getrgba*
+/* v_getrgba*:
+ *  Color decomposition.
  */
 static void v_getrgba15 (void *buffer, int offset, unsigned char rgba[4])
 {
@@ -406,8 +171,8 @@ static void v_getrgba32 (void *buffer, int offset, unsigned char rgba[4])
 
 
 
-/*
- * sync buffer with video hardware
+/* vl_sync_buffer:
+ *  Syncs buffer with video hardware. Returns NULL in case of failure.
  */
 void *vl_sync_buffer (void *buffer, int x, int y, int width, int height)
 {
@@ -417,9 +182,9 @@ void *vl_sync_buffer (void *buffer, int x, int y, int width, int height)
     return NULL;
  } else {
     if ((newbuf=realloc(buffer, width*height*video_bypp))!=NULL) {
-       current_offset = video_scanlen * y + video_bypp * x;
+       vl_current_offset = video_scanlen * y + video_bypp * x;
        current_width = width;
-       current_delta = video_scanlen - video_bypp * width;
+       vl_current_delta = video_scanlen - video_bypp * width;
     }
     return newbuf;
  }
@@ -427,102 +192,22 @@ void *vl_sync_buffer (void *buffer, int x, int y, int width, int height)
 
 
 
-/*
- * attempts to detect VESA and video modes
- */
-static word16 vl_vesa_init (void)
-{
- __dpmi_regs r;
- unsigned short *p;
- vl_mode *q;
- char vesa_info[512], tmp[512];
- int maxsize = 0;
-
- _farpokel(_stubinfo->ds_selector, 0, 0x32454256);
- r.x.ax = 0x4f00;
- r.x.di = 0;
- r.x.es = _stubinfo->ds_segment;
- __dpmi_int(0x10, &r);
- if (r.x.ax==0x004f) {
-    movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512);
-    if ((_32_ vesa_info[0])==0x41534556) {
-       p = (unsigned short *)(((_16_ vesa_info[0x10])<<4) + (_16_ vesa_info[0x0e]));
-       q = modes;
-       do {
-           if ((q->mode=_farpeekw(__djgpp_dos_sel, (unsigned long)(p++)))==0xffff) {
-              break;
-           }
-
-           r.x.ax = 0x4f01;
-           r.x.cx = q->mode;
-           r.x.di = 512;
-           r.x.es = _stubinfo->ds_segment;
-           __dpmi_int(0x10, &r);
-           movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256);
-           switch (tmp[0x19]) {
-                  case 16:
-                       q->bpp = tmp[0x1f] + tmp[0x21] + tmp[0x23];
-                       break;
-                  case 15:
-                  case 24:
-                  case 32:
-                       q->bpp = tmp[0x19];
-                       break;
-                  default:
-                       q->bpp = 0;
-           }
-           if ((r.x.ax==0x004f)&&((tmp[0]&0x11)==0x11)&&q->bpp) {
-              q->xres = _16_ tmp[0x12];
-              q->yres = _16_ tmp[0x14];
-              q->scanlen = _16_ tmp[0x10];
-              hw_granularity = (_16_ tmp[4])<<10;
-              if (tmp[0]&0x80) {
-                 *(q+1) = *q++;
-                 hw_linearfb = _32_ tmp[0x28];
-                 q->mode |= 0x4000;
-              }
-              if (maxsize<(q->scanlen*q->yres)) {
-                 maxsize = q->scanlen*q->yres;
-              }
-              q++;
-           }
-       } while (!0);
-
-       if (hw_linearfb) {
-          maxsize = ((maxsize+0xfffUL)&~0xfffUL);
-          if (_create_selector(&linear_selector, hw_linearfb, maxsize)) {
-             return 0;
-          }
-       }
-       if (_create_selector(&banked_selector, 0xa0000, hw_granularity)) {
-          _remove_selector(&linear_selector);
-          return 0;
-       }
-
-       return _16_ vesa_info[4];
-    }
- }
-
- return 0;
-}
-
-
-
-/*
- * setup mode
+/* vl_setup_mode:
+ *
+ *  success: 0
+ *  failure: -1
  */
 static int vl_setup_mode (vl_mode *p)
 {
  if (p->mode&0x4000) {
-    video_selector = linear_selector;
     vl_flip = l_dump_virtual;
  } else {
-    { int n; for (gran_shift=0, n=hw_granularity; n; gran_shift++, n>>=1) ; }
+    { int n; for (gran_shift=0, n=p->gran; n; gran_shift++, n>>=1) ; }
     gran_mask = (1<<(--gran_shift)) - 1;
-    if (hw_granularity!=(gran_mask+1)) {
+    if ((unsigned)p->gran != (gran_mask+1)) {
        return -1;
     }
-    video_selector = banked_selector;
+    vl_hw_granularity = p->gran;
     vl_flip = b_dump_virtual;
  }
 
@@ -554,56 +239,44 @@ static int vl_setup_mode (vl_mode *p)
 
  video_bypp = (p->bpp+7)/8;
  video_scanlen = p->scanlen;
+ vl_video_selector = p->sel;
 
  return 0;
 }
 
 
 
-/*
- * shutdown the video engine
+/* vl_video_exit:
+ *  Shutdown the video engine.
+ *  Restores to the mode prior to first call to `vl_video_init'.
  */
-void vl_video_exit (int textmode)
+void vl_video_exit (void)
 {
- if (init) {
-    if (textmode) {
-       __asm__("movw $0x3, %%ax; int  $0x10":::"%eax");
-    }
-    
-    _remove_selector(&linear_selector);
-    _remove_selector(&banked_selector);
-   
-    init = !init;
- }
+ drv->restore();
+ drv->finit();
 }
 
 
 
-/*
- * initialize video engine
+/* vl_video_init:
+ *  Enter mode.
  *
- * success: 0
- * failure: -1
+ *  success: 0
+ *  failure: -1
  */
-int vl_video_init (int width, int height, int bpp)
+int vl_video_init (int width, int height, int bpp, int refresh)
 {
  vl_mode *p, *q;
  unsigned int min;
 
- /* check for prior initialization */
- if (init) {
-    return 0;
- }
-
  /* initialize hardware */
- if (!(vesa_ver=vl_vesa_init())) {
+ if ((q=drv->getmodes()) == NULL) {
     return -1;
  }
- init = !init;
 
  /* search for a mode that fits our request */
- for (min=-1, p=NULL, q=modes; q->mode!=0xffff; q++) {
-     if ((q->xres>=width)&&(q->yres>=height)&&(q->bpp==bpp)) {
+ for (min=-1, p=NULL; q->mode!=0xffff; q++) {
+     if ((q->xres>=width) && (q->yres>=height) && (q->bpp==bpp)) {
         if (min>=(unsigned)(q->xres*q->yres)) {
            min = q->xres*q->yres;
            p = q;
@@ -611,13 +284,11 @@ int vl_video_init (int width, int height, int bpp)
      }
  }
 
- if (p) {
-    vl_setup_mode(p);
-    __asm__("movw $0x4f02, %%ax; int  $0x10"::"b"(p->mode):"%eax");
+ /* check, setup and enter mode */
+ if ((p!=NULL) && (vl_setup_mode(p) == 0) && (drv->entermode(p, refresh) == 0)) {
     return 0;
- } else {
-    /* no suitable mode found, abort */
-    vl_video_exit(0);
-    return -1;
  }
+
+ /* abort */
+ return -1;
 }
diff --git a/src/mesa/drivers/dos/video.h b/src/mesa/drivers/dos/video.h
index 46a1e22d30..868007f6fa 100644
--- a/src/mesa/drivers/dos/video.h
+++ b/src/mesa/drivers/dos/video.h
@@ -23,7 +23,7 @@
  */
 
 /*
- * DOS/DJGPP device driver v1.0 for Mesa 4.0
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
  *
  *  Copyright (C) 2002 - Borca Daniel
  *  Email : dborca@yahoo.com
@@ -34,15 +34,15 @@
 #ifndef VIDEO_H_included
 #define VIDEO_H_included
 
-int vl_video_init (int width, int height, int bpp);
-void vl_video_exit (int textmode);
+int vl_video_init (int width, int height, int bpp, int refresh);
+void vl_video_exit (void);
 
 void *vl_sync_buffer (void *buffer, int x, int y, int width, int height);
 
-extern void (*vl_clear) (void *buffer, int len, int color);
+extern void (*vl_clear) (void *buffer, int bytes, int color);
 void vl_rect (void *buffer, int x, int y, int width, int height, int color);
 
-void (*vl_flip) (void *buffer, int width, int height);
+void (*vl_flip) (void *buffer, int stride, int height);
 
 extern int (*vl_mixrgba) (const unsigned char rgba[]);
 extern int (*vl_mixrgb) (const unsigned char rgb[]);
diff --git a/src/mesa/drivers/dos/videoint.h b/src/mesa/drivers/dos/videoint.h
new file mode 100644
index 0000000000..87aa983706
--- /dev/null
+++ b/src/mesa/drivers/dos/videoint.h
@@ -0,0 +1,99 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  4.0
+ * 
+ * Copyright (C) 1999  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
+ *
+ *  Copyright (C) 2002 - Borca Daniel
+ *  Email : dborca@yahoo.com
+ *  Web   : http://www.geocities.com/dborca
+ */
+
+
+#ifndef VIDEOINT_H_included
+#define VIDEOINT_H_included
+
+/*
+ * general purpose defines, etc.
+ */
+#ifndef FALSE
+#define FALSE 0
+#define TRUE !FALSE
+#endif
+
+#define __PACKED__ __attribute__((packed))
+
+typedef unsigned char word8;
+typedef unsigned short word16;
+typedef unsigned long word32;
+
+#define _16_ *(word16 *)&
+#define _32_ *(word32 *)&
+
+
+
+/*
+ * video mode structure
+ */
+typedef struct vl_mode {
+        int mode;
+        int xres, yres;
+        int scanlen;
+        int bpp;
+
+        int sel;
+        int gran;
+} vl_mode;
+
+
+
+/*
+ * video driver structure
+ */
+typedef struct {
+        vl_mode *(*getmodes) (void);
+        int (*entermode) (vl_mode *p, int refresh);
+        void (*restore) (void);
+        void (*finit) (void);
+} vl_driver;
+
+
+
+/*
+ * asm routines to deal with virtual buffering
+ */
+#define v_clear15 v_clear16
+extern void v_clear16 (void *buffer, int bytes, int color);
+extern void v_clear32 (void *buffer, int bytes, int color);
+extern void v_clear24 (void *buffer, int bytes, int color);
+
+extern void b_dump_virtual (void *buffer, int stride, int height);
+extern void l_dump_virtual (void *buffer, int stride, int height);
+
+#define v_putpixel15 v_putpixel16
+extern void v_putpixel16 (void *buffer, int offset, int color);
+extern void v_putpixel24 (void *buffer, int offset, int color);
+extern void v_putpixel32 (void *buffer, int offset, int color);
+
+#endif
diff --git a/src/mesa/drivers/dos/virtual.S b/src/mesa/drivers/dos/virtual.S
new file mode 100644
index 0000000000..3633161c98
--- /dev/null
+++ b/src/mesa/drivers/dos/virtual.S
@@ -0,0 +1,237 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  4.0
+ * 
+ * Copyright (C) 1999  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.1 for Mesa 4.0
+ *
+ *  Copyright (C) 2002 - Borca Daniel
+ *  Email : dborca@yahoo.com
+ *  Web   : http://www.geocities.com/dborca
+ */
+
+
+		.file	"virtual.S"
+
+/*
+ * extern word32 vl_hw_granularity;
+ * extern int vl_video_selector;
+ * extern int vl_current_offset, vl_current_delta;
+ */
+
+		.text
+
+/*
+ * void v_clear16 (void *buffer, int bytes, int color);
+ */
+		.balign	4
+		.global	_v_clear16
+_v_clear16:
+		movl	12(%esp), %eax
+		pushw	%ax
+		pushw	%ax
+		popl	%eax
+		jmp	_v_clear_common
+
+/*
+ * void v_clear32 (void *buffer, int bytes, int color);
+ */
+		.balign	4
+		.global	_v_clear32
+_v_clear32:
+		movl	12(%esp), %eax
+		.balign	4
+_v_clear_common:
+		movl	8(%esp), %ecx
+		movl	4(%esp), %edx
+		shrl	$2, %ecx
+	0:
+		.balign	4
+		movl	%eax, (%edx)
+		addl	$4, %edx
+		decl	%ecx
+		jnz	0b
+		ret
+
+/*
+ * void v_clear24 (void *buffer, int bytes, int color);
+ */
+		.balign	4
+		.global	_v_clear24
+_v_clear24:
+		movl	8(%esp), %edx
+		movl	$0xaaaaaaab, %eax
+		mull	%edx
+		movl	12(%esp), %eax
+		movl	%edx, %ecx
+		movl	4(%esp), %edx
+		pushl	%ebx
+		shrl	%ecx
+		movb	18(%esp), %bl
+		.balign	4
+	0:
+		movw	%ax, (%edx)
+		movb	%bl, 2(%edx)
+		addl	$3, %edx
+		decl	%ecx
+		jnz	0b
+		popl	%ebx
+		ret
+
+/*
+ * void b_dump_virtual (void *buffer, int stride, int height);
+ */
+		.balign	4
+		.global	_b_dump_virtual
+_b_dump_virtual:
+		pushl	%ebx
+		pushl	%esi
+		pushl	%edi
+		pushl	%ebp
+		movl	_vl_video_selector, %fs
+		movl	4*4+4+0(%esp), %esi
+		movl	_vl_hw_granularity, %ebp
+		xorl	%edx, %edx
+		movl	_vl_current_offset, %eax
+		divl	%ebp
+		movl	%edx, %edi
+		pushl	%eax
+		movl	%eax, %edx
+		xorl	%ebx, %ebx
+		movw	$0x4f05, %ax
+		int	$0x10
+		movl	_vl_current_delta, %ebx
+		movl	5*4+4+4(%esp), %ecx
+		movl	5*4+4+8(%esp), %edx
+		shrl	$2, %ecx
+		.balign	4
+	0:
+		pushl	%ecx
+		.balign	4
+	1:
+		cmpl	%ebp, %edi
+		jb	2f
+		pushl	%ebx
+		pushl	%edx
+		incl	12(%esp)
+		movw	$0x4f05, %ax
+		movl	12(%esp), %edx
+		xorl	%ebx, %ebx
+		int	$0x10
+		popl	%edx
+		popl	%ebx
+		subl	%ebp, %edi
+	2:
+		movl	(%esi), %eax
+		addl	$4, %esi
+		movl	%eax, %fs:(%edi)
+		addl	$4, %edi
+		decl	%ecx
+		jnz	1b
+		popl	%ecx
+		addl	%ebx, %edi
+		decl	%edx
+		jnz	0b
+		popl	%eax
+		popl	%ebp
+		popl	%edi
+		popl	%esi
+		popl	%ebx
+		ret
+
+/*
+ * void l_dump_virtual (void *buffer, int stride, int height);
+ */
+		.balign	4
+		.global	_l_dump_virtual
+_l_dump_virtual:
+		pushl	%ebx
+		pushl	%esi
+		pushl	%edi
+		movl	_vl_video_selector, %fs
+		movl	3*4+4+0(%esp), %esi
+		movl	_vl_current_offset, %edi
+		movl	3*4+4+4(%esp), %ecx
+		movl	3*4+4+8(%esp), %edx
+		movl	_vl_current_delta, %ebx
+		shrl	$2, %ecx
+		.balign	4
+	0:
+		pushl	%ecx
+		.balign	4
+	1:
+		movl	(%esi), %eax
+		addl	$4, %esi
+		movl	%eax, %fs:(%edi)
+		addl	$4, %edi
+		decl	%ecx
+		jnz	1b
+		popl	%ecx
+		addl	%ebx, %edi
+		decl	%edx
+		jnz	0b
+		popl	%edi
+		popl	%esi
+		popl	%ebx
+		ret
+
+/*
+ * void v_putpixel16 (void *buffer, int offset, int color);
+ */
+		.balign	4
+		.global	_v_putpixel16
+_v_putpixel16:
+		movl	8(%esp), %edx
+		shll	%edx
+		movl	12(%esp), %eax
+		addl	4(%esp), %edx
+		movw	%ax, (%edx)
+		ret
+
+/*
+ * void v_putpixel24 (void *buffer, int offset, int color);
+ */
+		.balign	4
+		.global	_v_putpixel24
+_v_putpixel24:
+		movl	8(%esp), %edx
+		leal	(%edx, %edx, 2), %edx
+		movl	12(%esp), %eax
+		addl	4(%esp), %edx
+		movw	%ax, (%edx)
+		shrl	$16, %eax
+		movb	%al, 2(%edx)
+		ret
+
+/*
+ * void v_putpixel32 (void *buffer, int offset, int color);
+ */
+		.balign	4
+		.global	_v_putpixel32
+_v_putpixel32:
+		movl	8(%esp), %edx
+		shll	$2, %edx
+		movl	12(%esp), %eax
+		addl	4(%esp), %edx
+		movl	%eax, (%edx)
+		ret
diff --git a/src/mesa/main/Makefile.DJ b/src/mesa/main/Makefile.DJ
index 4749bfd849..57187420f5 100644
--- a/src/mesa/main/Makefile.DJ
+++ b/src/mesa/main/Makefile.DJ
@@ -20,31 +20,67 @@
 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-# DOS/DJGPP core makefile v1.0 for Mesa 4.0
+# DOS/DJGPP core makefile v1.1 for Mesa 4.0
 #
 #  Copyright (C) 2002 - Borca Daniel
 #  Email : dborca@yahoo.com
 #  Web   : http://www.geocities.com/dborca
 
 
+#
+#  Available options:
+#
+#    Environment variables:
+#	CFLAGS
+#
+#	GLIDE		absolute path to Glide SDK; used with FX.
+#			default = $(TOP)/include/glide3
+#	FX=1		build for 3dfx Glide3; use it if you have the glide
+#			SDK (designed for your platform), and, of course, a
+#			3dfx card... Note that this disables compilation of
+#			actual DMesa code, as Glide does all the stuff!
+#			default = no
+#	HAVE_X86=1	optimize for i386.
+#			default = no
+#	HAVE_MMX=1	MMX instructions; use only if you assembler/compiler
+#			supports MMX instruction set; backwards compatibility
+#			with older processors is still preserved.
+#			default = no
+#	HAVE_SSE=1	(see HAVE_MMX)
+#			default = no
+#	HAVE_3DNOW=1	(see HAVE_MMX)
+#			default = no
+#
+#    Targets:
+#	all:		build GL
+#	clean:		remove object files
+#
+
+
+
 .PHONY: all clean
 
 TOP = ..
+GLIDE ?= $(TOP)/include/glide3
+LIBDIR = $(TOP)/lib
+GL_LIB = libgl.a
+GL_DXE = gl.dxe
+GL_IMP = libigl.a
+
 CC = gcc
-CFLAGS = -I$(TOP)/include -I. -Wall -W -Wno-unused -mcpu=$(CPU) -ffast-math -O2
+CFLAGS += -I$(TOP)/include -I.
+ifdef FX
+CFLAGS += -D__DOS__ -I$(GLIDE) -DFX -DFX_GLIDE3 -DFXMESA_USE_ARGB
+endif
+
 AR = ar
-ARFLAGS = ruv
-LIBDIR = $(TOP)/lib
+ARFLAGS = ru
 
-ifeq ($(wildcard $(DJDIR)/lib/dxe2.ld),)
-DXE2GEN =
-else
+ifneq ($(wildcard $(DJDIR)/lib/dxe2.ld),)
 DXE2GEN = $(wildcard $(addsuffix /dxe2gen.exe,$(subst ;, ,$(PATH))))
 endif
 
-GL_LIB = libgl.a
-GL_DXE = gl.dxe
-GL_IMP = libigl.a
+RM = del
 
 CORE_SOURCES = \
 	swrast_setup/ss_context.c \
@@ -60,6 +96,7 @@ CORE_SOURCES = \
 	buffers.c \
 	clip.c \
 	colortab.c \
+	config.c \
 	context.c \
 	convolve.c \
 	debug.c \
@@ -175,7 +212,8 @@ X86_SOURCES = \
 	X86/x86_vertex.S \
 	X86/x86_cliptest.S
 
-MMX_SOURCES =
+MMX_SOURCES = \
+	X86/mmx_blend.S
 
 SSE_SOURCES = \
 	X86/sse.c \
@@ -185,7 +223,7 @@ SSE_SOURCES = \
 	X86/sse_vertex.S \
 	X86/sse_normal.S
 
-D3NOW_SOURCES = \
+K3D_SOURCES = \
 	X86/3dnow.c \
 	X86/3dnow_xform2.S \
 	X86/3dnow_xform3.S \
@@ -203,7 +241,7 @@ CFLAGS += -DUSE_SSE_ASM
 HAVE_X86 = 1
 endif
 ifdef HAVE_3DNOW
-X86_SOURCES += $(D3NOW_SOURCES)
+X86_SOURCES += $(K3D_SOURCES)
 CFLAGS += -DUSE_3DNOW_ASM
 HAVE_X86 = 1
 endif
@@ -213,16 +251,36 @@ else
 X86_SOURCES =
 endif
 
-DRIVER_SOURCES = DOS/dmesa.c DOS/video.c DOS/dpmi.c
+ifndef FX
+DRIVER_SOURCES = \
+	DOS/dmesa.c \
+	DOS/video.c \
+	DOS/virtual.S \
+	DOS/vesa/vesa.c \
+	DOS/dpmi.c
+else
+DRIVER_SOURCES = \
+	FX/fxapi.c \
+	FX/fxdd.c \
+	FX/fxddspan.c \
+	FX/fxddtex.c \
+	FX/fxsetup.c \
+	FX/fxtexman.c \
+	FX/fxtris.c \
+	FX/fxvb.c \
+	FX/fxglidew.c
+endif
 
 SOURCES = $(CORE_SOURCES) $(X86_SOURCES) $(DRIVER_SOURCES)
 
 OBJECTS = $(addsuffix .o,$(basename $(SOURCES)))
 
 .c.o:
-	gcc -o $@ -c $(CFLAGS) $<
+	$(CC) -o $@ -c $(CFLAGS) $<
 .S.o:
-	gcc -o $@ -c $(CFLAGS) $<
+	$(CC) -o $@ -c $(CFLAGS) $<
+.s.o:
+	$(CC) -o $@ -c $(CFLAGS) -x assembler-with-cpp $<
 
 all: $(LIBDIR)/$(GL_LIB) $(LIBDIR)/$(GL_DXE) $(LIBDIR)/$(GL_IMP)
 
@@ -234,24 +292,19 @@ ifeq ($(DXE2GEN),)
 	$(warning Missing DXE2GEN and/or DXE2.LD! You must have DXE2GEN)
 	$(warning somewhere in PATH, and DXE2.LD in DJGPP/LIB directory.)
 else
-	dxe2gen -o $(LIBDIR)/$(GL_DXE) -I $(LIBDIR)/$(GL_IMP) $(OBJECTS) -D "Mesa DOS GL" -U
+	-dxe2gen -o $(LIBDIR)/$(GL_DXE) -I $(LIBDIR)/$(GL_IMP) $(OBJECTS) -E djgpp_ -E gl -E DMesa -E fxMesa -D "Mesa DJGPP GL" -U
 endif
 
 clean:
-	-$(RM) *.o
-ifdef HAVE_X86
-	-$(RM) X86\*.o
-endif
-	-$(RM) DOS\*.o
-
-include depend
+	-$(RM) $(subst /,\,*.o)
+	-$(RM) $(subst /,\,array_cache/*.o)
+	-$(RM) $(subst /,\,math/*.o)
+	-$(RM) $(subst /,\,swrast/*.o)
+	-$(RM) $(subst /,\,swrast_setup/*.o)
+	-$(RM) $(subst /,\,tnl/*.o)
+	-$(RM) $(subst /,\,X86/*.o)
+	-$(RM) $(subst /,\,DOS/*.o)
+	-$(RM) $(subst /,\,DOS/vesa/*.o)
+	-$(RM) $(subst /,\,FX/*.o)
 
-DOS/dmesa.o: DOS/dmesa.c glheader.h ../include/GL/gl.h context.h glapi.h \
-  mtypes.h config.h glapitable.h glthread.h math/m_matrix.h dd.h macros.h \
-  ../include/GL/dmesa.h extensions.h matrix.h mmath.h texformat.h \
-  texstore.h array_cache/acache.h swrast/s_context.h swrast/swrast.h \
-  swrast/s_depth.h swrast/s_lines.h swrast/s_triangle.h swrast/s_trispan.h \
-  swrast_setup/swrast_setup.h tnl/tnl.h tnl/t_context.h math/m_vector.h \
-  math/m_xform.h tnl/t_pipeline.h DOS/video.h swrast/s_tritemp.h
-DOS/dpmi.o: DOS/dpmi.c DOS/dpmiint.h
-DOS/video.o: DOS/video.c DOS/video.h DOS/dpmiint.h
+-include depend
author	Brian Paul <brian.paul@tungstengraphics.com>	2002-09-03 18:11:32 +0000
committer	Brian Paul <brian.paul@tungstengraphics.com>	2002-09-03 18:11:32 +0000
commit	05ed911aca5ad0a6842ea0d6f3ac99b79ec752db (patch)
tree	3eab5e0bb8d2d90f3076a0c48679b7f08674ba73
parent	b9f75444e60477e7a523e7eec1bb49a8232fd4e7 (diff)