latest DOS updates (Daniel Borca)
diff --git a/docs/README.DJ b/docs/README.DJ
index 6589f52..1316761 100644
--- a/docs/README.DJ
+++ b/docs/README.DJ
@@ -32,8 +32,9 @@
Environment variables:
CPU optimize for the given processor.
default = k6
- SGI_GLU=1 build SGI's GLU instead of Mesa's.
- default = no
+ GLU=[src|si] specify GLU directory; can be `src' (src-glu = Mesa)
+ or `si' (si-glu = SGI's GLU -- requires GNU/C++).
+ default = src
GLIDE path to Glide3 SDK include files; used with FX.
default = $(TOP)/include/glide3
FX=1 build for 3dfx Glide3. Note that this disables
@@ -41,6 +42,9 @@
As a consequence, you'll need the DJGPP Glide3
library to build any application.
default = no
+ MATROX=1 build for Matrox Millennium I (MGA2064W) cards.
+ This is experimental and not intensively tested.
+ default = no
HAVE_X86=1 optimize for i386.
default = no
HAVE_MMX=1 allow MMX specializations, provided your assembler
@@ -81,6 +85,15 @@
A) You need LFN support.
A) When compiling for Glide (FX=1), pay attention to Glide path.
+ Q) Libraries built OK, but linker complains about `vsnprintf' every time I
+ compile some demo.
+ A) Upgrade to DJGPP 2.04.
+ A) Add `vsnprintf.c' to the CORE_SOURCES in `src/Makefile.DJ' (untested!).
+ A) The following hack should be safe in 90% of the cases, but if anything
+ goes wrong, don't come back to me crying. Anyway, patch `src/imports.c'
+ with the following line:
+ #define vsnprintf(buf, max, fmt, arg) vsprintf(buf, fmt, arg)
+
2. Dynamic modules
Q) What are you mumbling about dynamic modules?
@@ -103,9 +116,10 @@
3. Using Mesa for DJGPP
Q) DMesa 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?
+ 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 have a Matrox Millennium I card,
+ you just MIGHT be lucky... If you haven't, sorry; everything is done in
+ software. Suggestions?
Q) I tried to set refresh rate w/ DMesa, but without success.
A) Refresh rate control works only for VESA 3.0. If you were compiling for
@@ -113,15 +127,12 @@
Q) I made a simple application and it does nothing. It exits right away. Not
even a blank screen.
- A) Only DMesa+FX supports single-buffered. The standard VESA/VGA drivers
- will always work in double-buffered modes. If/When I will find a way to
- use *REAL* hardware acceleration for a specific card, it might or might
- not support single-buffered modes.
+ A) The pure software drivers (VESA/VGA) support only double-buffered modes.
A) Another weird "feature" is that buffer width must be multiple of 8 (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!
+ 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
@@ -196,15 +207,17 @@
* synced w/ Mesa-4.1
- removed dmesadxe.h
-v1.3 (jan-2003)
+v1.3 (feb-2003)
+ enabled OpenGL 1.4 support
+ added MMX clear/blit routines
+ enabled SGI's GLU compilation
+ + added samples makefile
+ added new GLUT functions
+ added color-index modes
+ + added Matrox Millennium MGA2064W driver
+ added 8bit FakeColor (thanks to Neil Funk)
+ added VGA support (to keep Ben Decker happy)
- * fixed GLUT compilation error (reported by Chan Kar Heng)
+ ! fixed GLUT compilation error (reported by Chan Kar Heng)
* overhauled virtual buffer and internal video drivers
* better fxMesa integration
* revamped GLUT
diff --git a/include/GL/dmesa.h b/include/GL/dmesa.h
index 16f6bff..2c0ef81 100644
--- a/include/GL/dmesa.h
+++ b/include/GL/dmesa.h
@@ -87,6 +87,11 @@
*/
void DMesaDestroyContext (DMesaContext c);
+/*
+ * Return a handle to the current context.
+ */
+DMesaContext DMesaGetCurrentContext (void);
+
/*
@@ -101,21 +106,17 @@
*/
void DMesaDestroyBuffer (DMesaBuffer b);
-
-
-/*
- * Bind Buffer to Context and make the Context the current one.
- */
-GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b);
-
-
-
/*
* Swap the front and back buffers for the given Buffer.
* No action is taken if the buffer is not double buffered.
*/
void DMesaSwapBuffers (DMesaBuffer b);
+/*
+ * Bind Buffer to Context and make the Context the current one.
+ */
+GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b);
+
/*
@@ -132,10 +133,12 @@
/*
* DMesa state retrieval.
*/
-#define DMESA_Y_ORIGIN 0x0100
-#define DMESA_SCREEN_SIZE 0x0101
-#define DMESA_ARGB_ORDER 0x0200
-void DMesaGetIntegerv (GLenum pname, GLint *params);
+#define DMESA_GET_SCREEN_SIZE 0x0100
+#define DMESA_GET_DRIVER_CAPS 0x0200
+
+#define DMESA_DRIVER_SWDB_BIT 0x1 /* software double-buffered */
+#define DMESA_DRIVER_LLWO_BIT 0x2 /* lower-left window origin */
+int DMesaGetIntegerv (GLenum pname, GLint *params);
#ifdef __cplusplus
}
diff --git a/progs/samples/Makefile.DJ b/progs/samples/Makefile.DJ
index b5724f4..3d679eb 100644
--- a/progs/samples/Makefile.DJ
+++ b/progs/samples/Makefile.DJ
@@ -65,16 +65,12 @@
LDFLAGS = -s -L$(TOP)/lib
-ifdef DXE
+ifeq ($(DXE),1)
DMESADXE = $(TOP)/lib/dmesadxe.o
-LDLIBS += -liglut -liglu -ligl
-ifdef FX
-LDFLAGS += -L$(GLIDE)
-endif
-LDLIBS += -ldl
+LDLIBS += -liglut -liglu -ligl -ldl
else
LDLIBS = -lglut -lglu -lgl
-ifdef FX
+ifeq ($(FX),1)
LDFLAGS += -L$(GLIDE)
LDLIBS += -lglid3
endif
diff --git a/src/glut/dos/glutint.h b/src/glut/dos/glutint.h
index 77a8322..bbabf0f 100644
--- a/src/glut/dos/glutint.h
+++ b/src/glut/dos/glutint.h
@@ -105,6 +105,9 @@
extern GLuint g_bpp; /* HW: bits per pixel */
extern GLuint g_refresh; /* HW: vertical refresh rate */
extern GLuint g_screen_w, g_screen_h; /* HW: physical screen size */
+extern GLint g_driver_caps;
+
+extern GLuint g_fps;
extern GLuint g_display_mode; /* display bits */
extern int g_init_x, g_init_y; /* initial window position */
@@ -132,7 +135,7 @@
-#define MAX_WINDOWS 2
+#define MAX_WINDOWS 2
#define DEFAULT_WIDTH 300
#define DEFAULT_HEIGHT 300
diff --git a/src/glut/dos/init.c b/src/glut/dos/init.c
index 0f848f6..6c034ff 100644
--- a/src/glut/dos/init.c
+++ b/src/glut/dos/init.c
@@ -38,6 +38,9 @@
GLuint g_bpp = DEFAULT_BPP;
GLuint g_refresh = 0;
GLuint g_screen_w, g_screen_h;
+GLint g_driver_caps;
+
+GLuint g_fps = 0;
GLuint g_display_mode = 0;
int g_init_x = 0, g_init_y = 0;
@@ -68,6 +71,13 @@
}
__glutProgramName = __glutStrdup(str);
+ /* check if GLUT_FPS env var is set */
+ if ((env = getenv("GLUT_FPS")) != NULL) {
+ if ((g_fps = atoi(env)) <= 0) {
+ g_fps = 5000; /* 5000 milliseconds */
+ }
+ }
+
/* Initialize timer */
glutGet(GLUT_ELAPSED_TIME);
}
@@ -106,9 +116,10 @@
{
GLint screen_size[2];
- DMesaGetIntegerv(DMESA_SCREEN_SIZE, screen_size);
+ DMesaGetIntegerv(DMESA_GET_SCREEN_SIZE, screen_size);
g_screen_w = screen_size[0];
g_screen_h = screen_size[1];
+ DMesaGetIntegerv(DMESA_GET_DRIVER_CAPS, &g_driver_caps);
}
pc_install_keyb();
diff --git a/src/glut/dos/mouse.c b/src/glut/dos/mouse.c
index c67f809..d82f5e8 100644
--- a/src/glut/dos/mouse.c
+++ b/src/glut/dos/mouse.c
@@ -39,19 +39,7 @@
void __glutInitMouse (void)
{
if ((g_mouse = pc_install_mouse())) {
- GLint yorg;
- GLint rect[4];
-
- DMesaGetIntegerv(DMESA_Y_ORIGIN, &yorg);
- if (yorg) {
- rect[1] = g_screen_h - g_curwin->height;
- } else {
- rect[1] = g_curwin->ypos;
- }
- rect[0] = g_curwin->xpos;
- rect[2] = rect[0] + g_curwin->width - 1;
- rect[3] = rect[1] + g_curwin->height - 1;
- pc_mouse_area(rect[0], rect[1], rect[2], rect[3]);
+ pc_mouse_area(g_curwin->xpos, g_curwin->ypos, g_curwin->xpos + g_curwin->width - 1, g_curwin->ypos + g_curwin->height - 1);
g_curwin->show_mouse = (g_curwin->mouse || g_curwin->motion || g_curwin->passive);
}
diff --git a/src/glut/dos/window.c b/src/glut/dos/window.c
index a7a7d9c..cad4726 100644
--- a/src/glut/dos/window.c
+++ b/src/glut/dos/window.c
@@ -27,12 +27,15 @@
*/
+#include <stdio.h>
+
#include "glutint.h"
#include "GL/dmesa.h"
GLUTwindow *g_curwin;
+static GLuint swaptime, swapcount;
static DMesaVisual visual = NULL;
static DMesaContext context = NULL;
@@ -59,7 +62,6 @@
int APIENTRY glutCreateWindow (const char *title)
{
int i;
- GLint screen_size[2];
int m8width = (g_init_w + 7) & ~7;
if (!visual) {
@@ -154,6 +156,20 @@
} else {
DMesaSwapBuffers(g_curwin->buffer);
}
+
+ if (g_fps) {
+ GLint t = glutGet(GLUT_ELAPSED_TIME);
+ swapcount++;
+ if (swaptime == 0)
+ swaptime = t;
+ else if (t - swaptime > g_fps) {
+ double time = 0.001 * (t - swaptime);
+ double fps = (double)swapcount / time;
+ fprintf(stderr, "GLUT: %d frames in %.2f seconds = %.2f FPS\n", swapcount, time, fps);
+ swaptime = t;
+ swapcount = 0;
+ }
+ }
}
diff --git a/src/mesa/drivers/dos/vesa/blit.S b/src/mesa/drivers/dos/blit.S
similarity index 100%
rename from src/mesa/drivers/dos/vesa/blit.S
rename to src/mesa/drivers/dos/blit.S
diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index ec9f3b2..a729738 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -54,14 +54,22 @@
#include "tnl/t_context.h"
#include "tnl/t_pipeline.h"
+#ifndef MATROX
+
#include "video.h"
-#else
+#else /* MATROX */
+
+#include "mga/mga.h"
+
+#endif /* MATROX */
+
+#else /* FX */
#include "../FX/fxdrv.h"
#include "GL/dmesa.h"
-#endif
+#endif /* FX */
@@ -74,6 +82,10 @@
GLboolean db_flag; /* double buffered? */
GLboolean rgb_flag; /* RGB mode? */
GLuint depth; /* bits per pixel (1, 8, 24, etc) */
+#ifdef MATROX
+ int stride_in_pixels;
+#endif
+ int zbuffer; /* Z=buffer: 0=no, 1=SW, -1=HW */
};
/*
@@ -107,8 +119,21 @@
/****************************************************************************
* Read/Write pixels
***************************************************************************/
-#define FLIP(y) (c->Buffer->height - (y) - 1)
-#define FLIP2(y) (b - (y))
+#define FLIP(y) (dmesa->Buffer->height - (y) - 1)
+#define FLIP2(y) (_b_ - (y))
+
+
+#ifndef MATROX
+#define DSTRIDE dmesa->Buffer->width
+#else
+#define DSTRIDE dmesa->visual->stride_in_pixels
+#define vl_putpixel mga_putpixel
+#define vl_mixrgba mga_mixrgb
+#define vl_mixrgb mga_mixrgb
+#define vl_getrgba mga_getrgba
+#define vl_setz mga_setz
+#define vl_getz mga_getz
+#endif
/****************************************************************************
* RGB[A]
@@ -116,10 +141,11 @@
static void write_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte rgba[][4], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset;
- offset = c->Buffer->width * FLIP(y) + x;
+#ifndef MATROX
+ offset = DSTRIDE * FLIP(y) + x;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, offset++) {
@@ -133,6 +159,29 @@
vl_putpixel(offset, vl_mixrgba(rgba[i]));
}
}
+#else /* MATROX */
+ y = FLIP(y);
+ if (mask) {
+ /* draw some pixels */
+ offset = 0;
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ ++offset;
+ } else {
+ if (offset != 0) {
+ mga_draw_span_rgb_tx32(x + i - offset, y, offset, (const unsigned long *)(&rgba[i-offset]));
+ offset = 0;
+ }
+ }
+ }
+ if (offset != 0) {
+ mga_draw_span_rgb_tx32(x + n - offset, y, offset, (const unsigned long *)(&rgba[n-offset]));
+ }
+ } else {
+ /* draw all pixels */
+ mga_draw_span_rgb_tx32(x, y, n, (const unsigned long *)rgba);
+ }
+#endif /* MATROX */
}
@@ -140,10 +189,10 @@
static void write_rgb_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte rgb[][3], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset;
- offset = c->Buffer->width * FLIP(y) + x;
+ offset = DSTRIDE * FLIP(y) + x;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, offset++) {
@@ -165,10 +214,10 @@
GLuint n, GLint x, GLint y,
const GLchan color[4], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset, rgba = vl_mixrgba(color);
- offset = c->Buffer->width * FLIP(y) + x;
+ offset = DSTRIDE * FLIP(y) + x;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, offset++) {
@@ -189,10 +238,10 @@
static void read_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
GLubyte rgba[][4])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset;
- offset = c->Buffer->width * FLIP(y) + x;
+ offset = DSTRIDE * FLIP(y) + x;
/* read all pixels */
for (i=0; i<n; i++, offset++) {
vl_getrgba(offset, rgba[i]);
@@ -205,20 +254,20 @@
GLuint n, const GLint x[], const GLint y[],
const GLubyte rgba[][4], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint i, w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++) {
if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*w + x[i], vl_mixrgba(rgba[i]));
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
}
}
} else {
/* draw all pixels */
for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*w + x[i], vl_mixrgba(rgba[i]));
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
}
}
}
@@ -229,20 +278,20 @@
GLuint n, const GLint x[], const GLint y[],
const GLchan color[4], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint i, w = c->Buffer->width, b = c->Buffer->height - 1, rgba = vl_mixrgba(color);
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1, rgba = vl_mixrgba(color);
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++) {
if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*w + x[i], rgba);
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
}
}
} else {
/* draw all pixels */
for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*w + x[i], rgba);
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
}
}
}
@@ -253,34 +302,37 @@
GLuint n, const GLint x[], const GLint y[],
GLubyte rgba[][4], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint i, w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
if (mask) {
/* read some pixels */
for (i=0; i<n; i++) {
if (mask[i]) {
- vl_getrgba(FLIP2(y[i])*w + x[i], rgba[i]);
+ vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
}
}
} else {
/* read all pixels */
for (i=0; i<n; i++) {
- vl_getrgba(FLIP2(y[i])*w + x[i], rgba[i]);
+ vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
}
}
}
+
+
/****************************************************************************
* Index
***************************************************************************/
+#ifndef MATROX
static void write_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLuint index[], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset;
- offset = c->Buffer->width * FLIP(y) + x;
+ offset = DSTRIDE * FLIP(y) + x;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, offset++) {
@@ -301,10 +353,10 @@
static void write_index8_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte index[], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset;
- offset = c->Buffer->width * FLIP(y) + x;
+ offset = DSTRIDE * FLIP(y) + x;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, offset++) {
@@ -326,10 +378,10 @@
GLuint n, GLint x, GLint y,
GLuint colorIndex, const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset;
- offset = c->Buffer->width * FLIP(y) + x;
+ offset = DSTRIDE * FLIP(y) + x;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, offset++) {
@@ -350,10 +402,10 @@
static void read_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
GLuint index[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
GLuint i, offset;
- offset = c->Buffer->width * FLIP(y) + x;
+ offset = DSTRIDE * FLIP(y) + x;
/* read all pixels */
for (i=0; i<n; i++, offset++) {
index[i] = vl_getpixel(offset);
@@ -366,20 +418,20 @@
GLuint n, const GLint x[], const GLint y[],
const GLuint index[], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint i, w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++) {
if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*w + x[i], index[i]);
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
}
}
} else {
/* draw all pixels */
for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*w + x[i], index[i]);
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
}
}
}
@@ -390,20 +442,20 @@
GLuint n, const GLint x[], const GLint y[],
GLuint colorIndex, const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint i, w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++) {
if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*w + x[i], colorIndex);
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
}
}
} else {
/* draw all pixels */
for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*w + x[i], colorIndex);
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
}
}
}
@@ -414,23 +466,107 @@
GLuint n, const GLint x[], const GLint y[],
GLuint index[], const GLubyte mask[])
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint i, w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
if (mask) {
/* read some pixels */
for (i=0; i<n; i++) {
if (mask[i]) {
- index[i] = vl_getpixel(FLIP2(y[i])*w + x[i]);
+ index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
}
}
} else {
/* read all pixels */
for (i=0; i<n; i++) {
- index[i] = vl_getpixel(FLIP2(y[i])*w + x[i]);
+ index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
}
}
}
+#endif /* !MATROX */
+
+
+
+/****************************************************************************
+ * Z-buffer
+ ***************************************************************************/
+#ifdef MATROX
+static void write_depth_span (GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLdepth depth[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some values */
+ for (i=0; i<n; i++, offset++) {
+ if (mask[i]) {
+ vl_setz(offset, depth[i]);
+ }
+ }
+ } else {
+ /* draw all values */
+ for (i=0; i<n; i++, offset++) {
+ vl_setz(offset, depth[i]);
+ }
+ }
+}
+
+
+
+static void read_depth_span (GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLdepth depth[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ /* read all values */
+ for (i=0; i<n; i++, offset++) {
+ depth[i] = vl_getz(offset);
+ }
+}
+
+
+
+static void write_depth_pixels (GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLdepth depth[], const GLubyte mask[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ if (mask) {
+ /* draw some values */
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ vl_setz(FLIP2(y[i])*_w_ + x[i], depth[i]);
+ }
+ }
+ } else {
+ /* draw all values */
+ for (i=0; i<n; i++) {
+ vl_setz(FLIP2(y[i])*_w_ + x[i], depth[i]);
+ }
+ }
+}
+
+
+
+static void read_depth_pixels (GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ GLdepth depth[])
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+
+ /* read all values */
+ for (i=0; i<n; i++) {
+ depth[i] = vl_getz(FLIP2(y[i])*_w_ + x[i]);
+ }
+}
+#endif /* MATROX */
@@ -439,74 +575,105 @@
***************************************************************************/
/*
- * flat, NON-depth-buffered, triangle.
+ * NON-depth-buffered flat triangle.
*/
static void tri_rgb_flat (GLcontext *ctx,
const SWvertex *v0,
const SWvertex *v1,
const SWvertex *v2)
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+#ifndef MATROX
+ GLuint _w_ = dmesa->Buffer->width;
#define SETUP_CODE GLuint rgb = vl_mixrgb(v2->color);
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*w + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- vl_putpixel(offset, rgb); \
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ vl_putpixel(offset, rgb); \
}
#include "swrast/s_tritemp.h"
+#else /* MATROX */
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_flat((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+#endif /* MATROX */
}
/*
- * flat, depth-buffered, triangle.
+ * Z-less flat triangle.
*/
-static void tri_rgb_flat_z (GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2)
+static void tri_rgb_flat_zless (GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+#ifndef MATROX
+ GLuint _w_ = dmesa->Buffer->width;
#define INTERP_Z 1
#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define SETUP_CODE GLuint rgb = vl_mixrgb(v2->color);
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*w + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- const DEPTH_TYPE z = FixedToDepth(span.z); \
- if (z < zRow[i]) { \
- vl_putpixel(offset, rgb); \
- zRow[i] = z; \
- } \
- span.z += span.zStep; \
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ vl_putpixel(offset, rgb); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
}
#include "swrast/s_tritemp.h"
+#else /* MATROX */
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m0.win[2] = v0->win[2];
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m1.win[2] = v1->win[2];
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ m2.win[2] = v2->win[2];
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_flat_zless((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+#endif /* MATROX */
}
/*
- * smooth, NON-depth-buffered, triangle.
+ * NON-depth-buffered iterated triangle.
*/
-static void tri_rgb_smooth (GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2)
+static void tri_rgb_iter (GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+#ifndef MATROX
+ GLuint _w_ = dmesa->Buffer->width;
#define INTERP_RGB 1
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*w + span.x; \
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
for (i = 0; i < span.end; i++, offset++) { \
vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue)); \
span.red += span.redStep; \
@@ -515,27 +682,42 @@
}
#include "swrast/s_tritemp.h"
+#else /* MATROX */
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ *(unsigned long *)m0.color = *(unsigned long *)v0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)v1->color;
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_iter((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+#endif /* MATROX */
}
/*
- * smooth, depth-buffered, triangle.
+ * Z-less iterated triangle.
*/
-static void tri_rgb_smooth_z (GLcontext *ctx,
- const SWvertex *v0,
- const SWvertex *v1,
- const SWvertex *v2)
+static void tri_rgb_iter_zless (GLcontext *ctx,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
{
- const DMesaContext c = (DMesaContext)ctx->DriverCtx;
- GLuint w = c->Buffer->width, b = c->Buffer->height - 1;
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+#ifndef MATROX
+ GLuint _w_ = dmesa->Buffer->width;
#define INTERP_Z 1
#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define INTERP_RGB 1
-#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*w + span.x; \
+#define RENDER_SPAN(span) \
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
for (i = 0; i < span.end; i++, offset++) { \
const DEPTH_TYPE z = FixedToDepth(span.z); \
if (z < zRow[i]) { \
@@ -549,6 +731,22 @@
}
#include "swrast/s_tritemp.h"
+#else /* MATROX */
+ MGAvertex m0, m1, m2;
+ m0.win[0] = v0->win[0];
+ m0.win[1] = FLIP2(v0->win[1]);
+ m0.win[2] = v0->win[2];
+ m1.win[0] = v1->win[0];
+ m1.win[1] = FLIP2(v1->win[1]);
+ m1.win[2] = v1->win[2];
+ m2.win[0] = v2->win[0];
+ m2.win[1] = FLIP2(v2->win[1]);
+ m2.win[2] = v2->win[2];
+ *(unsigned long *)m0.color = *(unsigned long *)v0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)v1->color;
+ *(unsigned long *)m2.color = *(unsigned long *)v2->color;
+ mga_draw_tri_rgb_iter_zless((int)SWRAST_CONTEXT(ctx)->_backface_sign, &m0, &m1, &m2);
+#endif /* MATROX */
}
@@ -566,7 +764,7 @@
|| (ctx->Polygon.StippleFlag)
|| (ctx->Texture._EnabledUnits)
|| (swrast->_RasterMask & MULTI_DRAW_BIT)
- || ((ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK))) {
+ || (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)) {
return (swrast_tri_func)NULL;
}
@@ -574,11 +772,11 @@
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
&& ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_smooth_z : tri_rgb_flat_z;
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter_zless : tri_rgb_flat_zless;
}
if (swrast->_RasterMask==0) { /* no depth test */
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_smooth : tri_rgb_flat;
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter : tri_rgb_flat;
}
return (swrast_tri_func)NULL;
@@ -601,25 +799,210 @@
/****************************************************************************
+ * Optimized line rendering
+ ***************************************************************************/
+
+#ifdef MATROX
+static __inline void matrox_line_clip_hack (GLcontext *ctx, int _b_, MGAvertex *m0, const SWvertex *vert0, MGAvertex *m1, const SWvertex *vert1)
+{
+ int x0 = vert0->win[0];
+ int y0 = vert0->win[1];
+ int x1 = vert1->win[0];
+ int y1 = vert1->win[1];
+ /* s_linetemp.h { */
+ GLint w = ctx->DrawBuffer->Width;
+ GLint h = ctx->DrawBuffer->Height;
+ if ((x0==w) | (x1==w)) {
+ if ((x0==w) & (x1==w))
+ return;
+ x0 -= x0==w;
+ x1 -= x1==w;
+ }
+ if ((y0==h) | (y1==h)) {
+ if ((y0==h) & (y1==h))
+ return;
+ y0 -= y0==h;
+ y1 -= y1==h;
+ }
+ /* } s_linetemp.h */
+ m0->win[0] = x0;
+ m0->win[1] = FLIP2(y0);
+ m1->win[0] = x1;
+ m1->win[1] = FLIP2(y1);
+}
+#endif
+
+/*
+ * NON-depth-buffered flat line.
+ */
+static void line_rgb_flat (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+#ifndef MATROX
+ GLuint _w_ = dmesa->Buffer->width;
+ GLuint rgb = vl_mixrgb(vert1->color);
+
+#define INTERP_XY 1
+#define CLIP_HACK 1
+#define PLOT(X,Y) vl_putpixel(FLIP2(Y) * _w_ + X, rgb);
+
+#include "swrast/s_linetemp.h"
+#else
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_flat(&m0, &m1);
+#endif
+}
+
+
+
+/*
+ * Z-less flat line.
+ */
+static void line_rgb_flat_zless (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+#ifndef MATROX
+ GLuint _w_ = dmesa->Buffer->width;
+ GLuint rgb = vl_mixrgb(vert1->color);
+
+#define INTERP_XY 1
+#define INTERP_Z 1
+#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
+#define CLIP_HACK 1
+#define PLOT(X,Y) \
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ vl_putpixel(FLIP2(Y) * _w_ + X, rgb); \
+ }
+
+#include "swrast/s_linetemp.h"
+#else
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ m0.win[2] = vert0->win[2];
+ m1.win[2] = vert1->win[2];
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_flat_zless(&m0, &m1);
+#endif
+}
+
+
+
+#ifndef MATROX
+#define line_rgb_iter NULL
+#define line_rgb_iter_zless NULL
+#else /* MATROX */
+/*
+ * NON-depth-buffered iterated line.
+ */
+static void line_rgb_iter (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ *(unsigned long *)m0.color = *(unsigned long *)vert0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_iter(&m0, &m1);
+}
+
+
+
+/*
+ * Z-less iterated line.
+ */
+static void line_rgb_iter_zless (GLcontext *ctx,
+ const SWvertex *vert0,
+ const SWvertex *vert1)
+{
+ const DMesaContext dmesa = (DMesaContext)ctx->DriverCtx;
+ GLuint _b_ = dmesa->Buffer->height - 1;
+ MGAvertex m0, m1;
+ matrox_line_clip_hack(ctx, _b_, &m0, vert0, &m1, vert1);
+ m0.win[2] = vert0->win[2];
+ m1.win[2] = vert1->win[2];
+ *(unsigned long *)m0.color = *(unsigned long *)vert0->color;
+ *(unsigned long *)m1.color = *(unsigned long *)vert1->color;
+ mga_draw_line_rgb_iter_zless(&m0, &m1);
+}
+#endif /* MATROX */
+
+
+
+/*
+ * Analyze context state to see if we can provide a fast line function
+ * Otherwise, return NULL.
+ */
+static swrast_line_func dmesa_choose_line_function (GLcontext *ctx)
+{
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if ((ctx->RenderMode != GL_RENDER)
+ || (ctx->Line.SmoothFlag)
+ || (ctx->Texture._EnabledUnits)
+ || (ctx->Line.StippleFlag)
+ || (swrast->_RasterMask & MULTI_DRAW_BIT)
+ || (ctx->Line.Width!=1.0F)) {
+ return (swrast_line_func)NULL;
+ }
+
+ if (swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter_zless : line_rgb_flat_zless;
+ }
+
+ if (swrast->_RasterMask==0) { /* no depth test */
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter : line_rgb_flat;
+ }
+
+ return (swrast_line_func)NULL;
+}
+
+
+
+/* Override for the swrast line-selection function. Try to use one
+ * of our internal line functions, otherwise fall back to the
+ * standard swrast functions.
+ */
+static void dmesa_choose_line (GLcontext *ctx)
+{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if (!(swrast->Line=dmesa_choose_line_function(ctx)))
+ _swrast_choose_line(ctx);
+}
+
+
+
+/****************************************************************************
* Miscellaneous device driver funcs
***************************************************************************/
static void clear_index (GLcontext *ctx, GLuint index)
{
- DMesaContext c = (DMesaContext)ctx->DriverCtx;
-
- c->ClearIndex = index;
+ ((DMesaContext)ctx->DriverCtx)->ClearIndex = index;
}
static void clear_color (GLcontext *ctx, const GLfloat color[4])
{
GLubyte col[4];
- DMesaContext c = (DMesaContext)ctx->DriverCtx;
CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]);
- c->ClearColor = vl_mixrgba(col);
+ ((DMesaContext)ctx->DriverCtx)->ClearColor = vl_mixrgba(col);
}
@@ -640,6 +1023,7 @@
/* we can't handle color or index masking */
if ((*colorMask == 0xffffffff) && (ctx->Color.IndexMask == 0xffffffff)) {
+#ifndef MATROX
if (mask & DD_BACK_LEFT_BIT) {
int color = c->visual->rgb_flag ? c->ClearColor : c->ClearIndex;
@@ -651,6 +1035,27 @@
mask &= ~DD_BACK_LEFT_BIT;
}
+#else /* MATROX */
+ unsigned short z = -1;
+ int color = c->ClearColor;
+ if (mask & DD_DEPTH_BIT) {
+ z = ctx->Depth.Clear * 0xffff;
+ }
+ if (all) {
+ mga_clear(mask & DD_FRONT_LEFT_BIT,
+ mask & DD_BACK_LEFT_BIT,
+ mask & DD_DEPTH_BIT,
+ 0, 0, c->Buffer->width, c->Buffer->height,
+ color, z);
+ } else {
+ mga_clear(mask & DD_FRONT_LEFT_BIT,
+ mask & DD_BACK_LEFT_BIT,
+ mask & DD_DEPTH_BIT,
+ x, y, width, height,
+ color, z);
+ }
+ mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT | DD_DEPTH_BIT);
+#endif /* MATROX */
}
if (mask) {
@@ -688,7 +1093,14 @@
{
switch (name) {
case GL_RENDERER:
- return (const GLubyte *)"Mesa DJGPP\0port (c) Borca Daniel dec-2002";
+ return (const GLubyte *)"Mesa DJGPP"
+ #ifdef FX
+ " (FX)"
+ #endif
+ #ifdef MATROX
+ " (MGA)"
+ #endif
+ "\0port (c) Borca Daniel feb-2003";
default:
return NULL;
}
@@ -717,6 +1129,13 @@
/****************************************************************************
* State
***************************************************************************/
+#define DMESA_NEW_LINE (_NEW_LINE | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
#define DMESA_NEW_TRIANGLE (_NEW_POLYGON | \
_NEW_TEXTURE | \
_NEW_LIGHT | \
@@ -731,8 +1150,10 @@
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ swrast->choose_line = dmesa_choose_line;
swrast->choose_triangle = dmesa_choose_tri;
+ swrast->invalidate_line |= DMESA_NEW_LINE;
swrast->invalidate_triangle |= DMESA_NEW_TRIANGLE;
}
@@ -808,22 +1229,21 @@
/* Install swsetup for tnl->Driver.Render.*:
*/
_swsetup_Wakeup(ctx);
-}
-
-
-static void dmesa_update_state (GLcontext *ctx, GLuint new_state)
-{
- struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference(ctx);
-
- /* Propogate statechange information to swrast and swrast_setup
- * modules. The DMesa driver has no internal GL-dependent state.
+ /* The span functions should be in `dmesa_update_state', but I'm
+ * pretty sure they will never change during the life of the Visual
*/
- _swrast_InvalidateState( ctx, new_state );
- _ac_InvalidateState( ctx, new_state );
- _tnl_InvalidateState( ctx, new_state );
- _swsetup_InvalidateState( ctx, new_state );
+#ifdef MATROX
+ if (((DMesaContext)ctx->DriverCtx)->visual->zbuffer == -1) {
+ /* Depth span/pixel functions */
+ dd->WriteDepthSpan = write_depth_span;
+ dd->WriteDepthPixels = write_depth_pixels;
+ dd->ReadDepthSpan = read_depth_span;
+ dd->ReadDepthPixels = read_depth_pixels;
+ }
+#endif
+#ifndef MATROX
/* Index span/pixel functions */
dd->WriteCI32Span = write_index_span;
dd->WriteCI8Span = write_index8_span;
@@ -832,6 +1252,7 @@
dd->WriteMonoCIPixels = write_mono_index_pixels;
dd->ReadCI32Span = read_index_span;
dd->ReadCI32Pixels = read_index_pixels;
+#endif
/* RGB(A) span/pixel functions */
dd->WriteRGBASpan = write_rgba_span;
@@ -842,7 +1263,20 @@
dd->ReadRGBASpan = read_rgba_span;
dd->ReadRGBAPixels = read_rgba_pixels;
}
-#endif
+
+
+
+static void dmesa_update_state (GLcontext *ctx, GLuint new_state)
+{
+ /* Propogate statechange information to swrast and swrast_setup
+ * modules. The DMesa driver has no internal GL-dependent state.
+ */
+ _swrast_InvalidateState( ctx, new_state );
+ _ac_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
+}
+#endif /* FX */
@@ -868,9 +1302,15 @@
DMesaVisual v;
GLint redBits, greenBits, blueBits, alphaBits, indexBits;
+#ifndef MATROX
if (!dbFlag) {
return NULL;
}
+#else
+ if (!rgbFlag) {
+ return NULL;
+ }
+#endif
alphaBits = 0;
@@ -909,9 +1349,15 @@
}
}
+#ifndef MATROX
if ((colDepth=vl_video_init(width, height, colDepth, rgbFlag, refresh)) <= 0) {
return NULL;
}
+#else
+ if (mga_open(width, height, colDepth, dbFlag ? 2 : 1, depthSize == 16, refresh) < 0) {
+ return NULL;
+ }
+#endif
if (alphaFlag && (alphaBits==0)) {
alphaBits = 8;
@@ -938,11 +1384,19 @@
v->depth = colDepth;
v->db_flag = dbFlag;
v->rgb_flag = rgbFlag;
+
+ v->zbuffer = (depthSize > 0) ? 1 : 0;
+#ifdef MATROX
+ mga_get(MGA_GET_HPIXELS, &v->stride_in_pixels);
+ if (depthSize == 16) {
+ v->zbuffer = -1;
+ }
+#endif
}
return v;
-#else
+#else /* FX */
int i = 0, fx_attrib[32];
@@ -958,7 +1412,7 @@
fx_attrib[i] = FXMESA_NONE;
return (DMesaVisual)fxMesaCreateBestContext(-1, width, height, fx_attrib);
-#endif
+#endif /* FX */
}
@@ -969,8 +1423,13 @@
_mesa_destroy_visual(v->gl_visual);
free(v);
+#ifndef MATROX
vl_video_exit();
#else
+ mga_close(1, 1);
+#endif
+
+#else
fxMesaDestroyContext((fxMesaContext)v);
#endif
}
@@ -988,7 +1447,7 @@
_mesa_initialize_framebuffer(&b->gl_buffer,
visual->gl_visual,
- visual->gl_visual->depthBits > 0,
+ visual->zbuffer == 1,
visual->gl_visual->stencilBits > 0,
visual->gl_visual->accumRedBits > 0,
visual->gl_visual->alphaBits > 0);
@@ -1009,7 +1468,9 @@
void DMesaDestroyBuffer (DMesaBuffer b)
{
#ifndef FX
+#ifndef MATROX
free(b->the_window);
+#endif
_mesa_free_framebuffer_data(&b->gl_buffer);
free(b);
#endif
@@ -1050,10 +1511,9 @@
return c;
-#else
-
+#else /* FX */
return (DMesaContext)visual;
-#endif
+#endif /* FX */
}
@@ -1076,7 +1536,7 @@
GLboolean DMesaMoveBuffer (GLint xpos, GLint ypos)
{
-#ifndef FX
+#if !defined(FX) && !defined(MATROX)
GET_CURRENT_CONTEXT(ctx);
DMesaBuffer b = ((DMesaContext)ctx->DriverCtx)->Buffer;
@@ -1089,7 +1549,6 @@
}
#else
-
return GL_FALSE;
#endif
}
@@ -1098,7 +1557,7 @@
GLboolean DMesaResizeBuffer (GLint width, GLint height)
{
-#ifndef FX
+#if !defined(FX) && !defined(MATROX)
GET_CURRENT_CONTEXT(ctx);
DMesaBuffer b = ((DMesaContext)ctx->DriverCtx)->Buffer;
@@ -1111,7 +1570,6 @@
}
#else
-
return GL_FALSE;
#endif
}
@@ -1125,9 +1583,11 @@
{
#ifndef FX
if ((c != NULL) && (b != NULL)) {
+#ifndef MATROX
if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, b->width, b->height) != 0) {
return GL_FALSE;
}
+#endif
c->Buffer = b;
@@ -1142,7 +1602,6 @@
}
#else
-
fxMesaMakeCurrent((fxMesaContext)c);
#endif
@@ -1157,8 +1616,14 @@
#ifndef FX
GET_CURRENT_CONTEXT(ctx);
_mesa_notifySwapBuffers(ctx);
+#ifndef MATROX
vl_flip();
#else
+ if (((DMesaContext)ctx->DriverCtx)->visual->db_flag) {
+ mga_swapbuffers(1);
+ }
+#endif
+#else
fxMesaSwapBuffers();
#endif
}
@@ -1167,14 +1632,26 @@
void DMesaSetCI (int ndx, GLfloat red, GLfloat green, GLfloat blue)
{
-#ifndef FX
+#if !defined(FX) && !defined(MATROX)
vl_setCI(ndx, red, green, blue);
#endif
}
-void DMesaGetIntegerv (GLenum pname, GLint *params)
+DMesaContext DMesaGetCurrentContext (void)
+{
+#ifndef FX
+ GET_CURRENT_CONTEXT(ctx);
+ return (ctx == NULL) ? NULL : (DMesaContext)ctx->DriverCtx;
+#else
+ return (DMesaContext)fxMesaGetCurrentContext();
+#endif
+}
+
+
+
+int DMesaGetIntegerv (GLenum pname, GLint *params)
{
#ifndef FX
GET_CURRENT_CONTEXT(ctx);
@@ -1184,33 +1661,36 @@
#endif
if (c == NULL) {
- return;
+ return -1;
}
switch (pname) {
- case DMESA_Y_ORIGIN:
+ case DMESA_GET_SCREEN_SIZE:
#ifndef FX
- params[0] = GL_FALSE;
+ #ifndef MATROX
+ vl_get(VL_GET_SCREEN_SIZE, params);
#else
- params[0] = GL_TRUE;
+ mga_get(MGA_GET_SCREEN_SIZE, params);
#endif
- break;
- case DMESA_SCREEN_SIZE:
- #ifndef FX
- vl_get_screen_size(¶ms[0], ¶ms[1]);
#else
params[0] = c->screen_width;
params[1] = c->screen_height;
#endif
break;
- case DMESA_ARGB_ORDER:
+ case DMESA_GET_DRIVER_CAPS:
#ifndef FX
- params[0] = GL_FALSE;
+ #ifndef MATROX
+ params[0] = DMESA_DRIVER_SWDB_BIT;
#else
- params[0] = !c->bgrOrder;
+ params[0] = 0;
+ #endif
+ #else
+ params[0] = DMESA_DRIVER_LLWO_BIT;
#endif
break;
default:
- break;
+ return -1;
}
+
+ return 0;
}
diff --git a/src/mesa/drivers/dos/dpmi.c b/src/mesa/drivers/dos/dpmi.c
index 882cda3..db6a306 100644
--- a/src/mesa/drivers/dos/dpmi.c
+++ b/src/mesa/drivers/dos/dpmi.c
@@ -46,7 +46,7 @@
/* _create_linear_mapping:
* Maps a physical address range into linear memory.
*/
-static int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size)
+int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size)
{
__dpmi_meminfo meminfo;
@@ -71,7 +71,7 @@
/* _remove_linear_mapping:
* Frees the DPMI resources being used to map a linear address range.
*/
-static void _remove_linear_mapping (unsigned long *linear)
+void _remove_linear_mapping (unsigned long *linear)
{
__dpmi_meminfo meminfo;
@@ -127,3 +127,22 @@
*segment = 0;
}
}
+
+
+
+/* Desc: retrieve CPU MMX capability
+ *
+ * In : -
+ * Out : FALSE if CPU cannot do MMX
+ *
+ * Note: -
+ */
+int _can_mmx (void)
+{
+#ifdef USE_MMX_ASM
+ extern int _mesa_identify_x86_cpu_features (void);
+ return (_mesa_identify_x86_cpu_features() & 0x00800000);
+#else
+ return 0;
+#endif
+}
diff --git a/src/mesa/drivers/dos/internal.h b/src/mesa/drivers/dos/internal.h
index 824d963..304a737 100644
--- a/src/mesa/drivers/dos/internal.h
+++ b/src/mesa/drivers/dos/internal.h
@@ -79,9 +79,9 @@
void (*blit) (void);
void (*setCI_f) (int index, float red, float green, float blue);
void (*setCI_i) (int index, int red, int green, int blue);
- int (*getCIprec) (void);
+ int (*get) (int pname, int *params);
void (*restore) (void);
- void (*finit) (void);
+ void (*fini) (void);
} vl_driver;
@@ -89,13 +89,15 @@
/*
* memory mapping
*/
+int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size);
+void _remove_linear_mapping (unsigned long *linear);
int _create_selector (int *segment, unsigned long base, int size);
void _remove_selector (int *segment);
/*
* system routines
*/
-int vl_can_mmx (void);
+int _can_mmx (void);
/*
* asm routines to deal with virtual buffering
diff --git a/src/mesa/drivers/dos/mga/m_ttemp.h b/src/mesa/drivers/dos/mga/m_ttemp.h
new file mode 100644
index 0000000..d3de69a
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/m_ttemp.h
@@ -0,0 +1,377 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W triangle template
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+/*
+ * Triangle Rasterizer Template
+ *
+ * This file is #include'd to generate custom triangle rasterizers.
+ *
+ * The following macros may be defined to indicate what auxillary information
+ * must be interplated across the triangle:
+ * INTERP_Z - if defined, interpolate Z values
+ * INTERP_RGB - if defined, interpolate RGB values
+ *
+ * TAG - function name
+ * CULL - enable culling for: 0=no, 1=back, -1=front
+ *
+ * SETUP_CODE - to be executed once per triangle (usually HW init)
+ *
+ * For flatshaded primitives, the provoking vertex is the final one.
+ * This code was designed for the origin to be in the upper-left corner.
+ *
+ * Inspired by triangle rasterizer code written by Brian Paul.
+ */
+
+
+
+#define TRI_SWAP(a, b) \
+do { \
+ const MGAvertex *tmp = a; \
+ a = b; \
+ b = tmp; \
+} while (0)
+
+void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3)
+{
+ int area;
+ int x1, y1, x2, y2, x3, y3;
+ int eMaj_dx, eMaj_dy, eBot_dx, eBot_dy, eTop_dx, eTop_dy;
+#ifdef INTERP_RGB
+#define FIFO_CNT_RGB 3
+ int eMaj_dr, eBot_dr, eMaj_dg, eBot_dg, eMaj_db, eBot_db;
+ int drdx, drdy, dgdx, dgdy, dbdx, dbdy;
+#else
+#define FIFO_CNT_RGB 0
+#endif
+#ifdef INTERP_Z
+#define FIFO_CNT_Z 1
+ int dzdx, dzdy;
+ int eMaj_dz, eBot_dz;
+ int z1, z2, z3;
+#else
+#define FIFO_CNT_Z 0
+#endif
+
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+ double one_area;
+#ifndef INTERP_RGB
+ int red = v3->color[0];
+ int green = v3->color[1];
+ int blue = v3->color[2];
+#endif
+#else
+ unsigned long color = mga_mixrgb_full(v3->color);
+#endif
+
+ int sgn = 0;
+
+ /* sort along the vertical axis */
+ if (v2->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v2);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ if (v3->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v3);
+ TRI_SWAP(v2, v3);
+ } else if (v3->win[1] < v2->win[1]) {
+ TRI_SWAP(v2, v3);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ x1 = v1->win[0];
+ y1 = v1->win[1];
+ x2 = v2->win[0];
+ y2 = v2->win[1];
+ x3 = v3->win[0];
+ y3 = v3->win[1];
+
+ /* compute deltas for each edge */
+ eMaj_dx = x3 - x1;
+ eMaj_dy = y3 - y1;
+ eBot_dx = x2 - x1;
+ eBot_dy = y2 - y1;
+ eTop_dx = x3 - x2;
+ eTop_dy = y3 - y2;
+
+ /* compute area */
+ if ((area = eMaj_dx * eBot_dy - eBot_dx * eMaj_dy) == 0) {
+ return;
+ }
+#ifdef CULL
+ if ((area * cull) > 0) {
+ return;
+ }
+#endif
+
+ mga_select();
+
+ /* set engine state */
+#ifdef SETUP_CODE
+ SETUP_CODE
+#endif
+
+ /* draw lower triangle */
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+ one_area = (double)(1<<15) / (double)area;
+ mga_fifo(1);
+#else
+ mga_fifo(2);
+ mga_outl(M_FCOL, color);
+#endif
+ mga_outl(M_YDST, y1);
+
+#ifdef INTERP_Z
+ z1 = v1->win[2];
+ z2 = v2->win[2];
+ z3 = v3->win[2];
+
+ /* compute d?/dx and d?/dy derivatives */
+ eMaj_dz = z3 - z1;
+ eBot_dz = z2 - z1;
+ dzdx = (eMaj_dz * eBot_dy - eMaj_dy * eBot_dz) * one_area;
+ dzdy = (eMaj_dx * eBot_dz - eMaj_dz * eBot_dx) * one_area;
+
+#ifndef INTERP_RGB
+ mga_fifo(11);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+ mga_outl(M_DR4, red<<15);
+ mga_outl(M_DR6, 0);
+ mga_outl(M_DR7, 0);
+ mga_outl(M_DR8, green<<15);
+ mga_outl(M_DR10, 0);
+ mga_outl(M_DR11, 0);
+ mga_outl(M_DR12, blue<<15);
+ mga_outl(M_DR14, 0);
+ mga_outl(M_DR15, 0);
+#else
+ mga_fifo(2);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+#endif
+#endif
+
+#ifdef INTERP_RGB
+ /* compute color deltas */
+ eMaj_dr = v3->color[0] - v1->color[0];
+ eBot_dr = v2->color[0] - v1->color[0];
+ eMaj_dg = v3->color[1] - v1->color[1];
+ eBot_dg = v2->color[1] - v1->color[1];
+ eMaj_db = v3->color[2] - v1->color[2];
+ eBot_db = v2->color[2] - v1->color[2];
+
+ /* compute color increments */
+ drdx = (eMaj_dr * eBot_dy - eMaj_dy * eBot_dr) * one_area;
+ drdy = (eMaj_dx * eBot_dr - eMaj_dr * eBot_dx) * one_area;
+ dgdx = (eMaj_dg * eBot_dy - eMaj_dy * eBot_dg) * one_area;
+ dgdy = (eMaj_dx * eBot_dg - eMaj_dg * eBot_dx) * one_area;
+ dbdx = (eMaj_db * eBot_dy - eMaj_dy * eBot_db) * one_area;
+ dbdy = (eMaj_dx * eBot_db - eMaj_db * eBot_dx) * one_area;
+
+ mga_fifo(6);
+ mga_outl(M_DR6, drdx);
+ mga_outl(M_DR7, drdy);
+ mga_outl(M_DR10, dgdx);
+ mga_outl(M_DR11, dgdy);
+ mga_outl(M_DR14, dbdx);
+ mga_outl(M_DR15, dbdy);
+#endif
+
+ if (area > 0) { /* major edge on the right */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR1, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR2, eBot_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eBot_dx);
+ mga_outl(M_AR2, -eBot_dx);
+ }
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x2);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z2<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v2->color[0]<<15);
+ mga_outl(M_DR8, v2->color[1]<<15);
+ mga_outl(M_DR12, v2->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR0, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR1, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR2, eTop_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eTop_dx);
+ mga_outl(M_AR2, -eTop_dx);
+ sgn &= ~M_SDXL;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ } else { /* major edge on the left */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_AR6, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR4, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR5, eBot_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eBot_dx);
+ mga_outl(M_AR5, -eBot_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x2<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR6, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR4, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR5, eTop_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eTop_dx);
+ mga_outl(M_AR5, -eTop_dx);
+ sgn &= ~M_SDXR;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ }
+}
+
+#undef FIFO_CNT_RGB
+#undef FIFO_CNT_Z
+
+#undef TRI_SWAP
+
+#undef SETUP_CODE
+#undef INTERP_RGB
+#undef INTERP_Z
+#undef CULL
+#undef TAG
diff --git a/src/mesa/drivers/dos/mga/m_ttemp2.h b/src/mesa/drivers/dos/mga/m_ttemp2.h
new file mode 100644
index 0000000..27a1c8b
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/m_ttemp2.h
@@ -0,0 +1,375 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W triangle template
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+/*
+ * Triangle Rasterizer Template
+ *
+ * This file is #include'd to generate custom triangle rasterizers.
+ *
+ * The following macros may be defined to indicate what auxillary information
+ * must be interplated across the triangle:
+ * INTERP_Z - if defined, interpolate Z values
+ * INTERP_RGB - if defined, interpolate RGB values
+ *
+ * TAG - function name
+ * CULL - enable culling for: 0=no, 1=back, -1=front
+ *
+ * SETUP_CODE - to be executed once per triangle (usually HW init)
+ *
+ * For flatshaded primitives, the provoking vertex is the final one.
+ * This code was designed for the origin to be in the upper-left corner.
+ *
+ * Inspired by triangle rasterizer code written by Brian Paul.
+ */
+
+
+
+#define TRI_SWAP(a, b) \
+do { \
+ const MGAvertex *tmp = a; \
+ a = b; \
+ b = tmp; \
+} while (0)
+
+void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3)
+{
+ int area;
+ int x1, y1, x2, y2, x3, y3;
+ int eMaj_dx, eMaj_dy, eBot_dx, eBot_dy, eTop_dx, eTop_dy;
+#ifdef INTERP_RGB
+#define FIFO_CNT_RGB 3
+ int eMaj_dr, eBot_dr, eMaj_dg, eBot_dg, eMaj_db, eBot_db;
+ int drdx, drdy, dgdx, dgdy, dbdx, dbdy;
+#else
+#define FIFO_CNT_RGB 0
+#endif
+#ifdef INTERP_Z
+#define FIFO_CNT_Z 1
+ int dzdx, dzdy;
+ int eMaj_dz, eBot_dz;
+ int z1, z2, z3;
+#else
+#define FIFO_CNT_Z 0
+#endif
+
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+#ifndef INTERP_RGB
+ int red = v3->color[0];
+ int green = v3->color[1];
+ int blue = v3->color[2];
+#endif
+#else
+ unsigned long color = mga_mixrgb_full(v3->color);
+#endif
+
+ int sgn = 0;
+
+ /* sort along the vertical axis */
+ if (v2->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v2);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ if (v3->win[1] < v1->win[1]) {
+ TRI_SWAP(v1, v3);
+ TRI_SWAP(v2, v3);
+ } else if (v3->win[1] < v2->win[1]) {
+ TRI_SWAP(v2, v3);
+#ifdef CULL
+ cull = -cull;
+#endif
+ }
+
+ x1 = v1->win[0];
+ y1 = v1->win[1];
+ x2 = v2->win[0];
+ y2 = v2->win[1];
+ x3 = v3->win[0];
+ y3 = v3->win[1];
+
+ /* compute deltas for each edge */
+ eMaj_dx = x3 - x1;
+ eMaj_dy = y3 - y1;
+ eBot_dx = x2 - x1;
+ eBot_dy = y2 - y1;
+ eTop_dx = x3 - x2;
+ eTop_dy = y3 - y2;
+
+ /* compute area */
+ if ((area = eMaj_dx * eBot_dy - eBot_dx * eMaj_dy) == 0) {
+ return;
+ }
+#ifdef CULL
+ if ((area * cull) > 0) {
+ return;
+ }
+#endif
+
+ mga_select();
+
+ /* set engine state */
+#ifdef SETUP_CODE
+ SETUP_CODE
+#endif
+
+ /* draw lower triangle */
+#if defined(INTERP_Z) || defined(INTERP_RGB)
+ mga_fifo(1);
+#else
+ mga_fifo(2);
+ mga_outl(M_FCOL, color);
+#endif
+ mga_outl(M_YDST, y1);
+
+#ifdef INTERP_Z
+ z1 = v1->win[2];
+ z2 = v2->win[2];
+ z3 = v3->win[2];
+
+ /* compute d?/dx and d?/dy derivatives */
+ eMaj_dz = z3 - z1;
+ eBot_dz = z2 - z1;
+ dzdx = ((long long)(eMaj_dz * eBot_dy - eMaj_dy * eBot_dz)<<15) / area;
+ dzdy = ((long long)(eMaj_dx * eBot_dz - eMaj_dz * eBot_dx)<<15) / area;
+
+#ifndef INTERP_RGB
+ mga_fifo(11);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+ mga_outl(M_DR4, red<<15);
+ mga_outl(M_DR6, 0);
+ mga_outl(M_DR7, 0);
+ mga_outl(M_DR8, green<<15);
+ mga_outl(M_DR10, 0);
+ mga_outl(M_DR11, 0);
+ mga_outl(M_DR12, blue<<15);
+ mga_outl(M_DR14, 0);
+ mga_outl(M_DR15, 0);
+#else
+ mga_fifo(2);
+ mga_outl(M_DR2, dzdx);
+ mga_outl(M_DR3, dzdy);
+#endif
+#endif
+
+#ifdef INTERP_RGB
+ /* compute color deltas */
+ eMaj_dr = v3->color[0] - v1->color[0];
+ eBot_dr = v2->color[0] - v1->color[0];
+ eMaj_dg = v3->color[1] - v1->color[1];
+ eBot_dg = v2->color[1] - v1->color[1];
+ eMaj_db = v3->color[2] - v1->color[2];
+ eBot_db = v2->color[2] - v1->color[2];
+
+ /* compute color increments */
+ drdx = ((long long)(eMaj_dr * eBot_dy - eMaj_dy * eBot_dr)<<15) / area;
+ drdy = ((long long)(eMaj_dx * eBot_dr - eMaj_dr * eBot_dx)<<15) / area;
+ dgdx = ((long long)(eMaj_dg * eBot_dy - eMaj_dy * eBot_dg)<<15) / area;
+ dgdy = ((long long)(eMaj_dx * eBot_dg - eMaj_dg * eBot_dx)<<15) / area;
+ dbdx = ((long long)(eMaj_db * eBot_dy - eMaj_dy * eBot_db)<<15) / area;
+ dbdy = ((long long)(eMaj_dx * eBot_db - eMaj_db * eBot_dx)<<15) / area;
+
+ mga_fifo(6);
+ mga_outl(M_DR6, drdx);
+ mga_outl(M_DR7, drdy);
+ mga_outl(M_DR10, dgdx);
+ mga_outl(M_DR11, dgdy);
+ mga_outl(M_DR14, dbdx);
+ mga_outl(M_DR15, dbdy);
+#endif
+
+ if (area > 0) { /* major edge on the right */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR1, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR2, eBot_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eBot_dx);
+ mga_outl(M_AR2, -eBot_dx);
+ }
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR6, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR5, eMaj_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eMaj_dx);
+ mga_outl(M_AR5, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x2);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z2<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v2->color[0]<<15);
+ mga_outl(M_DR8, v2->color[1]<<15);
+ mga_outl(M_DR12, v2->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR0, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR1, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR2, eTop_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eTop_dx);
+ mga_outl(M_AR2, -eTop_dx);
+ sgn &= ~M_SDXL;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ } else { /* major edge on the left */
+ if (eBot_dy) { /* have lower triangle */
+ mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_AR6, eBot_dy);
+ if (x2 < x1) {
+ mga_outl(M_AR4, eBot_dx + eBot_dy - 1);
+ mga_outl(M_AR5, eBot_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eBot_dx);
+ mga_outl(M_AR5, -eBot_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x1<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eBot_dy);
+ } else { /* no lower triangle */
+ mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB);
+
+ mga_outl(M_AR0, eMaj_dy);
+ if (x3 < x1) {
+ mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1);
+ mga_outl(M_AR2, eMaj_dx);
+ sgn |= M_SDXL;
+ } else {
+ mga_outl(M_AR1, -eMaj_dx);
+ mga_outl(M_AR2, -eMaj_dx);
+ }
+
+ mga_outl(M_FXBNDRY, (x2<<16) | x1);
+#ifdef INTERP_Z
+ mga_outl(M_DR0, z1<<15);
+#endif
+#ifdef INTERP_RGB
+ mga_outl(M_DR4, v1->color[0]<<15);
+ mga_outl(M_DR8, v1->color[1]<<15);
+ mga_outl(M_DR12, v1->color[2]<<15);
+#endif
+ }
+
+ /* draw upper triangle */
+ if (eTop_dy) {
+ mga_fifo(5);
+ mga_outl(M_AR6, eTop_dy);
+ if (x3 < x2) {
+ mga_outl(M_AR4, eTop_dx + eTop_dy - 1);
+ mga_outl(M_AR5, eTop_dx);
+ sgn |= M_SDXR;
+ } else {
+ mga_outl(M_AR4, -eTop_dx);
+ mga_outl(M_AR5, -eTop_dx);
+ sgn &= ~M_SDXR;
+ }
+ mga_outl(M_SGN, sgn);
+ mga_outl(M_LEN | M_EXEC, eTop_dy);
+ }
+ }
+}
+
+#undef FIFO_CNT_RGB
+#undef FIFO_CNT_Z
+
+#undef TRI_SWAP
+
+#undef SETUP_CODE
+#undef INTERP_RGB
+#undef INTERP_Z
+#undef CULL
+#undef TAG
diff --git a/src/mesa/drivers/dos/mga/mga.c b/src/mesa/drivers/dos/mga/mga.c
new file mode 100644
index 0000000..59bb09c
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/mga.c
@@ -0,0 +1,1536 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ *
+ * Thanks to Shawn Hargreaves for FreeBE/AF
+ */
+
+
+#include <dpmi.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../internal.h"
+#include "mga_reg.h"
+#include "mga_hw.h"
+#include "mga_mode.h"
+#include "mga.h"
+
+
+
+/* cached drawing engine state */
+#define OP_NONE 0
+
+#define OP_DRAWRECT (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_BLK | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ M_DWG_SOLID | /* solid */ \
+ M_DWG_ARZERO | /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWRECT_TX32BGR (\
+ M_DWG_TEXTURE_TRAP | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ M_DWG_ARZERO | /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU32BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWRECT_TX24BGR (\
+ M_DWG_TEXTURE_TRAP | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ M_DWG_ARZERO | /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU24BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWLINE (\
+ M_DWG_AUTOLINE_CLOSE | /* opcod */ \
+ M_DWG_RPL | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ M_DWG_SOLID | /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BFCOL /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWLINE_I (\
+ M_DWG_AUTOLINE_CLOSE | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BFCOL /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWLINE_ZI (\
+ M_DWG_AUTOLINE_CLOSE | /* opcod */ \
+ M_DWG_ZI | /* atype */ \
+ /* linear */ \
+ M_DWG_ZLT | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BFCOL /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWTRAP (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_BLK | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ M_DWG_SOLID | /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWTRAP_I (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_I | /* atype */ \
+ /* linear */ \
+ M_DWG_NOZCMP | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_DRAWTRAP_ZI (\
+ M_DWG_TRAP | /* opcod */ \
+ M_DWG_ZI | /* atype */ \
+ /* linear */ \
+ M_DWG_ZLT | /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC /* bop */ \
+ /* trans */ \
+ /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_ILOAD_32BGR (\
+ M_DWG_ILOAD | /* opcod */ \
+ M_DWG_RPL | /* atype */ \
+ /* linear */ \
+ /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU32BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+#define OP_ILOAD_24BGR (\
+ M_DWG_ILOAD | /* opcod */ \
+ M_DWG_RPL | /* atype */ \
+ /* linear */ \
+ /* zmode */ \
+ /* solid */ \
+ /* arzero */ \
+ M_DWG_SGNZERO | /* sgnzero */ \
+ M_DWG_SHFTZERO | /* shftzero */ \
+ M_DWG_BOP_SRC | /* bop */ \
+ /* trans */ \
+ M_DWG_BU24BGR /* bltmod */ \
+ /* pattern */ \
+ /* transc */ )
+
+
+
+/* internal hardware data structures */
+static int interleave;
+static unsigned long zorg;
+static unsigned long vram;
+static char card_name[80];
+
+
+
+/* some info about current mode */
+static int __bpp, __bypp;
+static int __pixwidth, __bytwidth, __pagewidth, __width, __height, __zheight;
+static int __operation;
+static int __scrollx, __scrolly;
+
+
+
+/* buffers */
+static int mga_readbuffer, mga_writebuffer;
+static long mga_readbuffer_ptr, mga_writebuffer_ptr;
+static long mga_backbuffer_ptr, mga_frontbuffer_ptr;
+
+
+
+/* lookup table for scaling 2 bit colors up to 8 bits */
+static int _rgb_scale_2[4] = {
+ 0, 85, 170, 255
+};
+
+/* lookup table for scaling 3 bit colors up to 8 bits */
+static int _rgb_scale_3[8] = {
+ 0, 36, 73, 109, 146, 182, 219, 255
+};
+
+/* lookup table for scaling 5 bit colors up to 8 bits */
+static int _rgb_scale_5[32] = {
+ 0, 8, 16, 25, 33, 41, 49, 58,
+ 66, 74, 82, 90, 99, 107, 115, 123,
+ 132, 140, 148, 156, 165, 173, 181, 189,
+ 197, 206, 214, 222, 230, 239, 247, 255
+};
+
+/* lookup table for scaling 6 bit colors up to 8 bits */
+static int _rgb_scale_6[64] = {
+ 0, 4, 8, 12, 16, 20, 24, 28,
+ 32, 36, 40, 45, 49, 53, 57, 61,
+ 65, 69, 73, 77, 81, 85, 89, 93,
+ 97, 101, 105, 109, 113, 117, 121, 125,
+ 130, 134, 138, 142, 146, 150, 154, 158,
+ 162, 166, 170, 174, 178, 182, 186, 190,
+ 194, 198, 202, 206, 210, 215, 219, 223,
+ 227, 231, 235, 239, 243, 247, 251, 255
+};
+
+
+
+/*
+ * pixel/color routines
+ */
+void (*mga_putpixel) (unsigned int offset, int color);
+int (*mga_getpixel) (unsigned int offset);
+void (*mga_getrgba) (unsigned int offset, unsigned char rgba[4]);
+int (*mga_mixrgb) (const unsigned char rgb[]);
+static int (*mga_mixrgb_full) (const unsigned char rgb[]);
+
+
+
+/* mga_fifo:
+ * Waits until there are at least <n> free slots in the FIFO buffer.
+ */
+#define mga_fifo(n) do { } while (mga_inb(M_FIFOSTATUS) < (n))
+
+
+
+static int _mga_rread (int port, int index)
+{
+ mga_select();
+ mga_outb(port, index);
+ return mga_inb(port+1);
+}
+
+
+
+static void _mga_rwrite (int port, int index, int v)
+{
+ mga_select();
+ mga_outb(port, index);
+ mga_outb(port+1, v);
+}
+
+
+
+static void _mga_ralter (int port, int index, int mask, int v)
+{
+ int temp;
+ temp = _mga_rread(port, index);
+ temp &= (~mask);
+ temp |= (v & mask);
+ _mga_rwrite(port, index, temp);
+}
+
+
+
+/* WaitTillIdle:
+ * Delay until the hardware controller has finished drawing.
+ */
+void mga_wait_idle (void)
+{
+ int tries = 2;
+
+ /*hwptr_unselect(oldptr);*/
+
+ mga_select();
+
+ while (tries--) {
+ do {
+ } while (!(mga_inl(M_FIFOSTATUS) & 0x200));
+
+ do {
+ } while (mga_inl(M_STATUS) & 0x10000);
+
+ mga_outb(M_CRTC_INDEX, 0);
+ }
+
+ /*hwptr_select(oldptr);*/
+}
+
+
+
+/* Desc: Waits for the next vertical sync period.
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static void _mga_wait_retrace (void)
+{
+ int t1 = 0;
+ int t2 = 0;
+
+ do {
+ t1 = t2;
+ t2 = mga_inl(M_VCOUNT);
+ } while (t2 >= t1);
+}
+
+
+
+/* Desc: fix scan lines
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static unsigned long _mga_fix_scans (unsigned long l)
+{
+ unsigned long m = 0;
+
+ switch (__bpp) {
+ case 8:
+ m = interleave?128:64;
+ break;
+ case 15:
+ case 16:
+ m = interleave?64:32;
+ break;
+ case 24:
+ m = interleave?128:64;
+ break;
+ case 32:
+ m = 32;
+ break;
+ }
+
+ m -= 1;
+ return (l + m) & ~m;
+}
+
+
+
+/* Desc: HW scrolling function
+ *
+ * In :
+ * Out :
+ *
+ * Note: view Z-buffer in 16bit modes: _mga_display_start(0, 0, __height, 1)
+ */
+void mga_display_start (long boffset, long x, long y, long waitVRT)
+{
+ long addr;
+
+ mga_select();
+
+ if (waitVRT >= 0) {
+
+ addr = __bytwidth * y + (boffset + x) * __bypp;
+
+ if (interleave) {
+ addr /= 8;
+ } else {
+ addr /= 4;
+ }
+
+ _mga_rwrite(M_CRTC_INDEX, 0x0D, (addr)&0xFF);
+ _mga_rwrite(M_CRTC_INDEX, 0x0C, (addr>>8)&0xFF);
+ _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x0F, (addr>>16)&0x0F);
+
+ while (waitVRT--) {
+ _mga_wait_retrace();
+ }
+ }
+
+ __scrollx = x;
+ __scrolly = y;
+}
+
+
+
+/* Desc: set READ buffer
+ *
+ * In : either FRONT or BACK buffer
+ * Out :
+ *
+ * Note:
+ */
+void mga_set_readbuffer (int buffer)
+{
+ mga_readbuffer = buffer;
+
+ mga_readbuffer_ptr = (mga_readbuffer == MGA_FRONTBUFFER) ? mga_frontbuffer_ptr : mga_backbuffer_ptr;
+}
+
+
+
+/* Desc: set WRITE buffer
+ *
+ * In : either FRONT or BACK buffer
+ * Out :
+ *
+ * Note:
+ */
+void mga_set_writebuffer (int buffer)
+{
+ mga_writebuffer = buffer;
+
+ mga_writebuffer_ptr = (mga_writebuffer == MGA_FRONTBUFFER) ? mga_frontbuffer_ptr : mga_backbuffer_ptr;
+
+ mga_select();
+ mga_fifo(1);
+ mga_outl(M_YDSTORG, mga_writebuffer_ptr);
+
+ __operation = OP_NONE;
+}
+
+
+
+/* Desc: swap buffers
+ *
+ * In : number of vertical retraces to wait
+ * Out :
+ *
+ * Note:
+ */
+void mga_swapbuffers (int swapinterval)
+{
+ /* flip the buffers */
+ mga_backbuffer_ptr ^= __pagewidth;
+ mga_frontbuffer_ptr ^= __pagewidth;
+
+ /* update READ/WRITE pointers */
+ mga_set_readbuffer(mga_readbuffer);
+ mga_set_writebuffer(mga_writebuffer);
+
+ /* make sure we always see the FRONT buffer */
+ mga_display_start(mga_frontbuffer_ptr, __scrollx, __scrolly, swapinterval);
+}
+
+
+
+/* Desc: color composition (w/o ALPHA)
+ *
+ * In : array of integers (R, G, B)
+ * Out : color
+ *
+ * Note: -
+ */
+static __inline int _mga_mixrgb8 (const unsigned char rgb[])
+{
+ return (rgb[0]&0xe0)|((rgb[1]>>5)<<2)|(rgb[2]>>6);
+}
+static __inline int _mga_mixrgb15 (const unsigned char rgb[])
+{
+ return ((rgb[0]>>3)<<10)|((rgb[1]>>3)<<5)|(rgb[2]>>3);
+}
+static __inline int _mga_mixrgb16 (const unsigned char rgb[])
+{
+ return ((rgb[0]>>3)<<11)|((rgb[1]>>2)<<5)|(rgb[2]>>3);
+}
+static __inline int _mga_mixrgb32 (const unsigned char rgb[])
+{
+ return (rgb[0]<<16)|(rgb[1]<<8)|(rgb[2]);
+}
+
+
+
+/* Desc: color composition (w/o ALPHA) + replication
+ *
+ * In : array of integers (R, G, B)
+ * Out : color
+ *
+ * Note: -
+ */
+static int _mga_mixrgb8_full (const unsigned char rgb[])
+{
+ int color = _mga_mixrgb8(rgb);
+ color |= color<<8;
+ return (color<<16) | color;
+}
+static int _mga_mixrgb15_full (const unsigned char rgb[])
+{
+ int color = _mga_mixrgb15(rgb);
+ return (color<<16) | color;
+}
+static int _mga_mixrgb16_full (const unsigned char rgb[])
+{
+ int color = _mga_mixrgb16(rgb);
+ return (color<<16) | color;
+}
+#define _mga_mixrgb32_full _mga_mixrgb32
+
+
+
+/* Desc: putpixel
+ *
+ * In : pixel offset, pixel value
+ * Out : -
+ *
+ * Note: uses current write buffer
+ */
+static void _mga_putpixel8 (unsigned int offset, int color)
+{
+ hwptr_pokeb(mgaptr.linear_map, mga_writebuffer_ptr + offset, color);
+}
+#define _mga_putpixel15 _mga_putpixel16
+static void _mga_putpixel16 (unsigned int offset, int color)
+{
+ hwptr_pokew(mgaptr.linear_map, (mga_writebuffer_ptr + offset) * 2, color);
+}
+static void _mga_putpixel32 (unsigned int offset, int color)
+{
+ hwptr_pokel(mgaptr.linear_map, (mga_writebuffer_ptr + offset) * 4, color);
+}
+
+
+
+/* Desc: pixel retrieval
+ *
+ * In : pixel offset
+ * Out : pixel value
+ *
+ * Note: uses current read buffer
+ */
+static __inline int _mga_getpixel8 (unsigned int offset)
+{
+ return hwptr_peekb(mgaptr.linear_map, mga_readbuffer_ptr + offset);
+}
+#define _mga_getpixel15 _mga_getpixel16
+static __inline int _mga_getpixel16 (unsigned int offset)
+{
+ return hwptr_peekw(mgaptr.linear_map, (mga_readbuffer_ptr + offset) * 2);
+}
+static __inline int _mga_getpixel32 (unsigned int offset)
+{
+ return hwptr_peekl(mgaptr.linear_map, (mga_readbuffer_ptr + offset) * 4);
+}
+
+
+
+/* Desc: color decomposition
+ *
+ * In : pixel offset, array of integers to hold color components (R, G, B, A)
+ * Out : -
+ *
+ * Note: uses current read buffer
+ */
+static void _mga_getrgba8 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel8(offset);
+ rgba[0] = _rgb_scale_3[(c >> 5) & 0x7];
+ rgba[1] = _rgb_scale_3[(c >> 2) & 0x7];
+ rgba[2] = _rgb_scale_2[c & 0x3];
+ rgba[3] = 255;
+}
+static void _mga_getrgba15 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel15(offset);
+ rgba[0] = _rgb_scale_5[(c >> 10) & 0x1F];
+ rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F];
+ rgba[2] = _rgb_scale_5[c & 0x1F];
+ rgba[3] = 255;
+}
+static void _mga_getrgba16 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel16(offset);
+ rgba[0] = _rgb_scale_5[(c >> 11) & 0x1F];
+ rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F];
+ rgba[2] = _rgb_scale_5[c & 0x1F];
+ rgba[3] = 255;
+}
+static void _mga_getrgba32 (unsigned int offset, unsigned char rgba[4])
+{
+ int c = _mga_getpixel32(offset);
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = c >> 24;
+}
+
+
+
+/* Desc: RGB flat line
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_line_rgb_flat (const MGAvertex *v1, const MGAvertex *v2)
+{
+ unsigned long color;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+
+ if ((x1 == x2) && (y1 == y2)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE);
+ __operation = OP_DRAWLINE;
+ }
+
+ color = mga_mixrgb_full(v2->color);
+
+ /* draw the line */
+ mga_fifo(3);
+ mga_outl(M_FCOL, color);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB flat Z-less line
+ *
+ * In :
+ * Out :
+ *
+ * Note: I never figured out "diagonal increments"
+ */
+void mga_draw_line_rgb_flat_zless (const MGAvertex *v1, const MGAvertex *v2)
+{
+ int z1, dz;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+ int dx = abs(x2 - x1);
+ int dy = abs(y2 - y1);
+
+ if ((dx == 0) && (dy == 0)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE_ZI) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE_ZI);
+ __operation = OP_DRAWLINE_ZI;
+ }
+
+ if (dx < dy) {
+ dx = dy;
+ }
+
+ z1 = v1->win[2] << 15;
+ dz = ((v2->win[2] << 15) - z1) / dx;
+
+ /* draw the line */
+ mga_fifo(14);
+ mga_outl(M_DR0, z1);
+ mga_outl(M_DR2, dz);
+ mga_outl(M_DR3, dz);
+ mga_outl(M_DR4, v2->color[0] << 15);
+ mga_outl(M_DR6, 0);
+ mga_outl(M_DR7, 0);
+ mga_outl(M_DR8, v2->color[1] << 15);
+ mga_outl(M_DR10, 0);
+ mga_outl(M_DR11, 0);
+ mga_outl(M_DR12, v2->color[2] << 15);
+ mga_outl(M_DR14, 0);
+ mga_outl(M_DR15, 0);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB iterated line
+ *
+ * In :
+ * Out :
+ *
+ * Note: I never figured out "diagonal increments"
+ */
+void mga_draw_line_rgb_iter (const MGAvertex *v1, const MGAvertex *v2)
+{
+ int r1, g1, b1;
+ int dr, dg, db;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+ int dx = abs(x2 - x1);
+ int dy = abs(y2 - y1);
+
+ if ((dx == 0) && (dy == 0)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE_I) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE_I);
+ __operation = OP_DRAWLINE_I;
+ }
+
+ if (dx < dy) {
+ dx = dy;
+ }
+
+ r1 = v1->color[0] << 15;
+ g1 = v1->color[1] << 15;
+ b1 = v1->color[2] << 15;
+ dr = ((v2->color[0] << 15) - r1) / dx;
+ dg = ((v2->color[1] << 15) - g1) / dx;
+ db = ((v2->color[2] << 15) - b1) / dx;
+
+ /* draw the line */
+ mga_fifo(11);
+ mga_outl(M_DR4, r1);
+ mga_outl(M_DR6, dr);
+ mga_outl(M_DR7, dr);
+ mga_outl(M_DR8, g1);
+ mga_outl(M_DR10, dg);
+ mga_outl(M_DR11, dg);
+ mga_outl(M_DR12, b1);
+ mga_outl(M_DR14, db);
+ mga_outl(M_DR15, db);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB iterated Z-less line
+ *
+ * In :
+ * Out :
+ *
+ * Note: I never figured out "diagonal increments"
+ */
+void mga_draw_line_rgb_iter_zless (const MGAvertex *v1, const MGAvertex *v2)
+{
+ int z1, dz;
+ int r1, g1, b1;
+ int dr, dg, db;
+ int x1 = v1->win[0];
+ int y1 = v1->win[1];
+ int x2 = v2->win[0];
+ int y2 = v2->win[1];
+ int dx = abs(x2 - x1);
+ int dy = abs(y2 - y1);
+
+ if ((dx == 0) && (dy == 0)) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWLINE_ZI) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWLINE_ZI);
+ __operation = OP_DRAWLINE_ZI;
+ }
+
+ if (dx < dy) {
+ dx = dy;
+ }
+
+ z1 = v1->win[2] << 15;
+ dz = ((v2->win[2] << 15) - z1) / dx;
+
+ r1 = v1->color[0] << 15;
+ g1 = v1->color[1] << 15;
+ b1 = v1->color[2] << 15;
+ dr = ((v2->color[0] << 15) - r1) / dx;
+ dg = ((v2->color[1] << 15) - g1) / dx;
+ db = ((v2->color[2] << 15) - b1) / dx;
+
+ /* draw the line */
+ mga_fifo(14);
+ mga_outl(M_DR0, z1);
+ mga_outl(M_DR2, dz);
+ mga_outl(M_DR3, dz);
+ mga_outl(M_DR4, r1);
+ mga_outl(M_DR6, dr);
+ mga_outl(M_DR7, dr);
+ mga_outl(M_DR8, g1);
+ mga_outl(M_DR10, dg);
+ mga_outl(M_DR11, dg);
+ mga_outl(M_DR12, b1);
+ mga_outl(M_DR14, db);
+ mga_outl(M_DR15, db);
+ mga_outl(M_XYSTRT, (y1<<16) | x1);
+ mga_outl(M_XYEND | M_EXEC, (y2<<16) | x2);
+}
+
+
+
+/* Desc: RGB flat triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_flat
+#define CULL
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP); \
+ __operation = OP_DRAWTRAP; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB flat Z-less triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_flat_zless
+#define CULL
+#define INTERP_Z
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP_ZI) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP_ZI); \
+ __operation = OP_DRAWTRAP_ZI; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB iterated triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_iter
+#define CULL
+#define INTERP_RGB
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP_I) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP_I); \
+ __operation = OP_DRAWTRAP_I; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB iterated Z-less triangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+#define TAG mga_draw_tri_rgb_iter_zless
+#define CULL
+#define INTERP_Z
+#define INTERP_RGB
+#define SETUP_CODE \
+ if (__operation != OP_DRAWTRAP_ZI) { \
+ mga_fifo(1); \
+ mga_outl(M_DWGCTL, OP_DRAWTRAP_ZI); \
+ __operation = OP_DRAWTRAP_ZI; \
+ }
+#include "m_ttemp.h"
+
+
+
+/* Desc: RGB flat rectangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_rect_rgb_flat (int left, int top, int width, int height, int color)
+{
+ if (__bpp == 8) {
+ color |= color << 8;
+ }
+ if (__bpp <= 16) {
+ color |= color << 16;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT) {
+
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT);
+ __operation = OP_DRAWRECT;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(3);
+ mga_outl(M_FCOL, color);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+}
+
+
+
+/* Desc: 32RGB textured span
+ *
+ * In :
+ * Out :
+ *
+ * Note: 0 <= width <= 7*1024
+ */
+void mga_draw_span_rgb_tx32 (int left, int top, int width, const unsigned long *bitmap)
+{
+ int i;
+
+ if (!width) {
+ return;
+ }
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX32BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX32BGR);
+ __operation = OP_DRAWRECT_TX32BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | 1);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ do {
+ mga_outl(i, *bitmap);
+ bitmap++;
+ i += 4;
+ } while (--width);
+}
+
+
+
+/* Desc: 24RGB textured span
+ *
+ * In :
+ * Out :
+ *
+ * Note: 0 <= width <= 7*1024
+ */
+void mga_draw_span_rgb_tx24 (int left, int top, int width, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX24BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX24BGR);
+ __operation = OP_DRAWRECT_TX24BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | 1);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width = (width * 3 + 3) / 4;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: 32RGB textured rectangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_rect_rgb_tx32 (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX32BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX32BGR);
+ __operation = OP_DRAWRECT_TX32BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width *= height;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: 24RGB textured rectangle
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_draw_rect_rgb_tx24 (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_DRAWRECT_TX24BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_DRAWRECT_TX24BGR);
+ __operation = OP_DRAWRECT_TX24BGR;
+ }
+
+ /* draw the rectangle */
+ mga_fifo(2);
+ mga_outl(M_FXBNDRY, ((left+width)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width = (width * height * 3 + 3) / 4;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: copy 32RGB image to screen
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_iload_32RGB (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_ILOAD_32BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_ILOAD_32BGR);
+ __operation = OP_ILOAD_32BGR;
+ }
+
+ /* draw the bitmap */
+ mga_fifo(5);
+ mga_outl(M_AR0, width-1);
+ mga_outl(M_AR3, 0);
+ mga_outl(M_AR5, 0);
+ mga_outl(M_FXBNDRY, ((left+width-1)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width *= height;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: copy 24RGB image to screen
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_iload_24RGB (int left, int top, int width, int height, const unsigned long *bitmap)
+{
+ int i;
+
+ mga_select();
+
+ /* set engine state */
+ if (__operation != OP_ILOAD_24BGR) {
+ mga_fifo(1);
+ mga_outl(M_DWGCTL, OP_ILOAD_24BGR);
+ __operation = OP_ILOAD_24BGR;
+ }
+
+ /* draw the bitmap */
+ mga_fifo(5);
+ mga_outl(M_AR0, width-1);
+ mga_outl(M_AR3, 0);
+ mga_outl(M_AR5, 0);
+ mga_outl(M_FXBNDRY, ((left+width-1)<<16) | left);
+ mga_outl(M_YDSTLEN | M_EXEC, (top<<16) | height);
+
+ /* copy data to the pseudo-dma window */
+ i = 0;
+ width = (width * height * 3 + 3) / 4;
+ while (width) {
+ mga_outl(i & (7 * 1024 - 1), *bitmap);
+ bitmap++;
+ i += 4;
+ width--;
+ }
+}
+
+
+
+/* Desc: get Z-buffer value
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+unsigned short mga_getz (int offset)
+{
+ return hwptr_peekw(mgaptr.linear_map, zorg + (mga_readbuffer_ptr + offset) * 2);
+}
+
+
+
+/* Desc: put Z-buffer value
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_setz (int offset, unsigned short z)
+{
+ hwptr_pokew(mgaptr.linear_map, zorg + (mga_writebuffer_ptr + offset) * 2, z);
+}
+
+
+
+/* Desc: clear Z-buffer
+ *
+ * In :
+ * Out :
+ *
+ * Note: uses current write buffer
+ */
+static void _mga_clear_zed (int left, int top, int width, int height, unsigned short z)
+{
+ if (__bpp == 16) {
+ /* GPU store (high bandwidth)
+ * Hack alert:
+ * can cause problems with concurrent FB accesses
+ */
+ mga_select();
+ mga_fifo(1);
+ mga_outl(M_YDSTORG, mga_writebuffer_ptr + zorg/2);
+ mga_draw_rect_rgb_flat(left, top, width, height, z);
+ mga_fifo(1);
+ mga_outl(M_YDSTORG, mga_writebuffer_ptr);
+ } else {
+ /* CPU store */
+ unsigned long i, zz = (z<<16) | z;
+ unsigned long ofs = zorg + (top * __pixwidth + left + mga_writebuffer_ptr) * 2;
+ hwptr_select(mgaptr.linear_map);
+ while (height--) {
+ i = width/2;
+ while (i--) {
+ hwptr_nspokel(mgaptr.linear_map, ofs, zz);
+ ofs += 4;
+ }
+ if (width & 1) {
+ hwptr_nspokew(mgaptr.linear_map, ofs, z);
+ ofs += 2;
+ }
+ ofs += (__pixwidth - width) * 2;
+ }
+ }
+}
+
+
+
+/* Desc: clear color- and Z-buffer
+ *
+ * In : front = clear front buffer
+ * back = clear back buffer
+ * zed = clear depth buffer
+ * left = leftmost pixel to be cleared
+ * top = starting line
+ * width = number of pixels
+ * height = number of lines
+ * color = color to clear to
+ * z = z value (ignored if zed==0)
+ * Out :
+ *
+ * Note:
+ */
+void mga_clear (int front, int back, int zed, int left, int top, int width, int height, int color, unsigned short z)
+{
+ if (front) {
+ if (mga_writebuffer == MGA_FRONTBUFFER) {
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ front = 0;
+ }
+ }
+ if (back) {
+ if (mga_writebuffer == MGA_BACKBUFFER) {
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ back = 0;
+ }
+ }
+ if (front) {
+ int old = mga_writebuffer;
+ mga_set_writebuffer(MGA_FRONTBUFFER);
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ mga_set_writebuffer(old);
+ front = 0;
+ }
+ if (back) {
+ int old = mga_writebuffer;
+ mga_set_writebuffer(MGA_BACKBUFFER);
+ mga_draw_rect_rgb_flat(left, top, width, height, color);
+ if (zed) {
+ _mga_clear_zed(left, top, width, height, z);
+ }
+ mga_set_writebuffer(old);
+ back = 0;
+ }
+}
+
+
+
+/* Desc: Attempts to enter specified video mode.
+ *
+ * In : ptr to mode structure, number of pages, Z-buffer request, refresh rate
+ * Out : 0 if success
+ *
+ * Note: also set up the accelerator engine
+ */
+int mga_open (int width, int height, int bpp, int buffers, int zbuffer, int refresh)
+{
+ static int mill_strides[] = { 640, 768, 800, 960, 1024, 1152, 1280, 1600, 1920, 2048, 0 };
+ unsigned int i, used;
+ MGA_MODE *p;
+
+ if (mga_hw_init(&vram, &interleave, card_name) == 0) {
+ return -1;
+ }
+
+ if ((p = mga_mode_find(width, height, bpp)) == NULL) {
+ return -1;
+ }
+
+ __bpp = p->bpp;
+ __width = __pagewidth = p->xres;
+ __height = p->yres;
+
+ if (buffers > 1) {
+ __pagewidth = _mga_fix_scans(__pagewidth);
+ __pixwidth = __pagewidth * buffers;
+ } else {
+ __pixwidth = __pagewidth;
+ __pixwidth = _mga_fix_scans(__pixwidth);
+ }
+
+ for (i=0; mill_strides[i]; i++) {
+ if (__pixwidth <= mill_strides[i]) {
+ __pixwidth = mill_strides[i];
+ break;
+ }
+ }
+
+ __bypp = (__bpp+7)/8;
+ __bytwidth = __pixwidth * __bypp;
+
+ /* compute used memory: framebuffer + zbuffer */
+ used = __bytwidth * __height;
+ if (zbuffer) {
+ zorg = (used + 511) & ~511;
+ /* Hack alert:
+ * a 16-bit Z-buffer size is (stride_in_pixels * number_of_lines * 2)
+ * We cannot mess with the Z-buffer width, but we might decrease the
+ * number of lines, if the user requests less than (screen_height). For
+ * example with a 2MB card, one can have 640x480x16 display with 2 color
+ * buffers and Z-buffer if the maximum requested height is 339:
+ * Total = (640*480 * 2 + 640*339 * 2) * 2
+ * However, this means the user must not write beyond the window's height
+ * and if we'll ever implement moveable windows, we'll have to reconsider
+ * this hack.
+ */
+#if 1
+ __zheight = height; /* smaller */
+ used = zorg + __pixwidth * 2 * __zheight;
+#else
+ __zheight = __height;
+ used = zorg + __pixwidth * 2 * __zheight;
+#endif
+ }
+
+ if (mill_strides[i] && (vram>=used)) {
+ /* enter mode */
+ mga_mode_switch(p, refresh);
+ /* change the scan line length */
+ _mga_ralter(M_CRTC_INDEX, 0x14, 0x40, 0); /* disable DWORD */
+ _mga_ralter(M_CRTC_INDEX, 0x17, 0x40, 0x40); /* wbmode = BYTE */
+ if (interleave) {
+ _mga_rwrite(M_CRTC_INDEX, 0x13, __bytwidth/16);
+ _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x30, ((__bytwidth/16)>>4)&0x30);
+ } else {
+ _mga_rwrite(M_CRTC_INDEX, 0x13, __bytwidth/8);
+ _mga_ralter(M_CRTC_EXT_INDEX, 0, 0x30, ((__bytwidth/8)>>4)&0x30);
+ }
+ } else {
+ return -1;
+ }
+
+ /* setup buffers */
+ mga_frontbuffer_ptr = 0;
+ if (buffers > 1) {
+ mga_backbuffer_ptr = __pagewidth;
+ mga_set_readbuffer(MGA_BACKBUFFER);
+ mga_set_writebuffer(MGA_BACKBUFFER);
+ } else {
+ mga_backbuffer_ptr = 0;
+ mga_set_readbuffer(MGA_FRONTBUFFER);
+ mga_set_writebuffer(MGA_FRONTBUFFER);
+ }
+ mga_display_start(mga_frontbuffer_ptr, __scrollx = 0, __scrolly = 0, 1);
+
+ /* set up the accelerator engine */
+ mga_select();
+
+ mga_fifo(8);
+ mga_outl(M_PITCH, __pixwidth);
+ mga_outl(M_PLNWT, 0xFFFFFFFF);
+ mga_outl(M_OPMODE, M_DMA_BLIT);
+ mga_outl(M_CXBNDRY, 0xFFFF0000);
+ mga_outl(M_YTOP, 0x00000000);
+ mga_outl(M_YBOT, 0x007FFFFF);
+ mga_outl(M_ZORG, zorg);
+
+#define INITPTR(bpp) \
+ mga_putpixel = _mga_putpixel##bpp; \
+ mga_getrgba = _mga_getrgba##bpp; \
+ mga_getpixel = _mga_getpixel##bpp; \
+ mga_mixrgb = _mga_mixrgb##bpp; \
+ mga_mixrgb_full = _mga_mixrgb##bpp##_full
+
+ switch (__bpp) {
+ case 8:
+ mga_outl(M_MACCESS, 0);
+ INITPTR(8);
+ break;
+ case 15:
+ mga_outl(M_MACCESS, 0x80000001);
+ INITPTR(15);
+ break;
+ case 16:
+ mga_outl(M_MACCESS, 1);
+ INITPTR(16);
+ break;
+ case 32:
+ mga_outl(M_MACCESS, 2);
+ INITPTR(32);
+ break;
+ }
+
+#undef INITPTR
+
+ /* disable VGA aperture */
+ i = mga_inb(M_MISC_R);
+ mga_outb(M_MISC_W, i & ~2);
+
+ /* clear Z-buffer (if any) */
+ if (zbuffer) {
+ unsigned long ofs = zorg;
+ unsigned long len = zorg + __pixwidth * 2 * __zheight;
+
+ hwptr_select(mgaptr.linear_map);
+ for (; ofs<len; ofs+=4) {
+ hwptr_nspokel(mgaptr.linear_map, ofs, -1);
+ }
+ }
+
+ return 0;
+}
+
+
+
+/* Desc:
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_close (int restore, int unmap)
+{
+ if (restore) {
+ mga_mode_restore();
+ }
+ if (unmap) {
+ mga_hw_fini();
+ }
+}
+
+
+
+/* Desc: state retrieval
+ *
+ * In : parameter name, ptr to storage
+ * Out : 0 if request successfully processed
+ *
+ * Note: -
+ */
+int mga_get (int pname, int *params)
+{
+ switch (pname) {
+ case MGA_GET_CARD_NAME:
+ strcat(strcpy((char *)params, "Matrox "), card_name);
+ break;
+ case MGA_GET_VRAM:
+ params[0] = vram;
+ break;
+ case MGA_GET_CI_PREC:
+ params[0] = 0;
+ break;
+ case MGA_GET_HPIXELS:
+ params[0] = __pixwidth;
+ break;
+ case MGA_GET_SCREEN_SIZE:
+ params[0] = __width;
+ params[1] = __height;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
diff --git a/src/mesa/drivers/dos/mga/mga.h b/src/mesa/drivers/dos/mga/mga.h
new file mode 100644
index 0000000..fc5722b
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/mga.h
@@ -0,0 +1,91 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef MGA_H_included
+#define MGA_H_included
+
+#define MGA_GET_CARD_NAME 0x0100
+#define MGA_GET_VRAM 0x0101
+#define MGA_GET_CI_PREC 0x0200
+#define MGA_GET_HPIXELS 0x0201
+#define MGA_GET_SCREEN_SIZE 0x0202
+
+int mga_open (int width, int height, int bpp, int buffers, int zbuffer, int refresh);
+void mga_clear (int front, int back, int zed, int left, int top, int width, int height, int color, unsigned short z);
+int mga_get (int pname, int *params);
+void mga_close (int restore, int unmap);
+
+extern void (*mga_putpixel) (unsigned int offset, int color);
+extern int (*mga_getpixel) (unsigned int offset);
+extern void (*mga_getrgba) (unsigned int offset, unsigned char rgba[4]);
+extern int (*mga_mixrgb) (const unsigned char rgb[]);
+
+#define MGA_BACKBUFFER !0
+#define MGA_FRONTBUFFER 0
+void mga_set_readbuffer (int buffer);
+void mga_set_writebuffer (int buffer);
+void mga_swapbuffers (int swapinterval);
+
+unsigned short mga_getz (int offset);
+void mga_setz (int offset, unsigned short z);
+
+void mga_wait_idle (void);
+
+/*
+ * vertex structure, used for primitive rendering
+ */
+typedef struct {
+ int win[4]; /* X, Y, Z, ? */
+ unsigned char color[4]; /* R, G, B, A */
+} MGAvertex;
+
+void mga_draw_line_rgb_flat (const MGAvertex *v1, const MGAvertex *v2);
+void mga_draw_line_rgb_flat_zless (const MGAvertex *v1, const MGAvertex *v2);
+void mga_draw_line_rgb_iter (const MGAvertex *v1, const MGAvertex *v2);
+void mga_draw_line_rgb_iter_zless (const MGAvertex *v1, const MGAvertex *v2);
+
+void mga_draw_tri_rgb_flat (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+void mga_draw_tri_rgb_flat_zless (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+void mga_draw_tri_rgb_iter (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+void mga_draw_tri_rgb_iter_zless (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3);
+
+void mga_draw_rect_rgb_flat (int left, int top, int width, int height, int color);
+void mga_draw_rect_rgb_tx32 (int left, int top, int width, int height, const unsigned long *bitmap);
+void mga_draw_rect_rgb_tx24 (int left, int top, int width, int height, const unsigned long *bitmap);
+void mga_draw_span_rgb_tx32 (int left, int top, int width, const unsigned long *bitmap);
+void mga_draw_span_rgb_tx24 (int left, int top, int width, const unsigned long *bitmap);
+
+void mga_iload_32RGB (int left, int top, int width, int height, const unsigned long *bitmap);
+void mga_iload_24RGB (int left, int top, int width, int height, const unsigned long *bitmap);
+
+#endif
diff --git a/src/mesa/drivers/dos/mga/mga_hw.c b/src/mesa/drivers/dos/mga/mga_hw.c
new file mode 100644
index 0000000..4354ce8
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/mga_hw.c
@@ -0,0 +1,416 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W HW mapping
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <crt0.h>
+#include <dpmi.h>
+#include <pc.h>
+#include <string.h>
+#include <sys/nearptr.h>
+#include <sys/segments.h>
+
+#include "../internal.h"
+#include "mga_reg.h"
+#include "mga_hw.h"
+
+
+
+/* Hack alert:
+ * these should really be externs
+ */
+/* PCI access routines */
+static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle);
+static unsigned long pci_read_long (int handle, int index);
+static void pci_write_long (int handle, int index, unsigned long value);
+
+
+
+/* PCI device identifiers */
+#define MATROX_VENDOR_ID 0x102B
+
+typedef enum {
+ MATROX_MILL_ID = 0x0519
+} MATROX_ID;
+
+static MATROX_ID matrox_id_list[] = {
+ MATROX_MILL_ID,
+ 0
+};
+
+
+
+/* internal hardware data structures */
+#if !MGA_FARPTR
+static int dirty;
+#endif
+static int bus_id;
+static unsigned long reg40;
+static unsigned long io_mem_base[4], linear_base;
+static unsigned long io_mem_size[4], linear_size;
+static MATROX_ID matrox_id;
+
+
+
+/* interface structures containing hardware pointer data */
+MGA_HWPTR mgaptr;
+
+
+
+/* Desc: create MMAP
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static int _create_mmap (__dpmi_paddr *m, unsigned long base, unsigned long size)
+{
+#if MGA_FARPTR
+ int sel;
+ if (_create_selector(&sel, base, size)) {
+ return -1;
+ }
+ m->selector = sel;
+ m->offset32 = 0;
+#else
+ m->selector = _my_ds();
+ if (_create_linear_mapping(&m->offset32, base, size)) {
+ return -1;
+ }
+ m->offset32 -= __djgpp_base_address;
+#endif
+ return 0;
+}
+
+
+
+/* Desc: destroy MMAP
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static void _destroy_mmap (__dpmi_paddr *m)
+{
+#if MGA_FARPTR
+ int sel = m->selector;
+ _remove_selector(&sel);
+#else
+ m->offset32 += __djgpp_base_address;
+ _remove_linear_mapping(&m->offset32);
+#endif
+ m->selector = 0;
+ m->offset32 = 0;
+}
+
+
+
+/* Desc: Counts amount of installed RAM
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static int _mga_get_vram (MATROX_ID chip, unsigned long base)
+{
+ int ProbeSize = 8;
+ int SizeFound = 2;
+ unsigned char tmp;
+ int i;
+ __dpmi_paddr fb;
+
+ switch (chip) {
+ case MATROX_MILL_ID:
+ ProbeSize = 8;
+ break;
+ }
+
+ if (_create_mmap(&fb, base, ProbeSize*1024*1024)) {
+ return 0;
+ }
+
+ /* turn MGA mode on - enable linear frame buffer (CRTCEXT3) */
+ mga_select();
+ mga_outb(M_CRTC_EXT_INDEX, 3);
+ tmp = mga_inb(M_CRTC_EXT_DATA);
+ mga_outb(M_CRTC_EXT_DATA, tmp | M_MGAMODE);
+
+ /* write, read and compare method */
+ for (i=ProbeSize; i>2; i-= 2) {
+ hwptr_pokeb(fb, i*1024*1024 - 1, 0xAA);
+ mga_select();
+ mga_outb(M_CRTC_INDEX, 0); /* flush the cache */
+ mga_inl(M_STATUS); /* delay */
+ mga_inl(M_STATUS); /* delay */
+ mga_inl(M_STATUS); /* delay */
+ if (hwptr_peekb(fb, i*1024*1024 - 1) == 0xAA) {
+ SizeFound = i;
+ break;
+ }
+ }
+
+ /* restore CRTCEXT3 state */
+ mga_select();
+ mga_outb(M_CRTC_EXT_INDEX, 3);
+ mga_outb(M_CRTC_EXT_DATA, tmp);
+
+ _destroy_mmap(&fb);
+
+ return SizeFound*1024*1024;
+}
+
+
+
+/* Desc: Frees all resources allocated by MGA init code.
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+void mga_hw_fini (void)
+{
+ int i;
+
+ pci_write_long(bus_id, 0x40, reg40);
+
+ for (i=0; i<4; i++) {
+ _destroy_mmap(&mgaptr.io_mem_map[i]);
+ }
+
+ _destroy_mmap(&mgaptr.linear_map);
+
+#if !MGA_FARPTR
+ if (dirty) {
+ __djgpp_nearptr_disable();
+ dirty = FALSE;
+ }
+#endif
+
+ matrox_id = 0;
+}
+
+
+
+/* Desc: Attempts to detect MGA.
+ *
+ * In :
+ * Out :
+ *
+ * Note: The first thing ever to be called. This is in charge of filling in
+ * the driver header with all the required information and function
+ * pointers. We do not yet have access to the video memory, so we can't
+ * talk directly to the card.
+ */
+int mga_hw_init (unsigned long *vram, int *interleave, char *name)
+{
+ int i;
+ unsigned long pci_base[2];
+
+ if (matrox_id) {
+ return matrox_id;
+ }
+
+#if !MGA_FARPTR
+ /* enable nearptr access */
+ if (_crt0_startup_flags & _CRT0_FLAG_NEARPTR) {
+ dirty = FALSE;
+ } else {
+ if (__djgpp_nearptr_enable() == 0)
+ return NULL;
+
+ dirty = TRUE;
+ }
+#endif
+
+ /* find PCI device */
+ matrox_id = 0;
+
+ for (bus_id=0, i=0; matrox_id_list[i]; i++) {
+ if (pci_find_device(matrox_id_list[i], MATROX_VENDOR_ID, 0, &bus_id)) {
+ matrox_id = matrox_id_list[i];
+ break;
+ }
+ }
+
+ /* set up the card name */
+ switch (matrox_id) {
+ case MATROX_MILL_ID:
+ if (name) strcpy(name, "Millennium");
+ break;
+ default:
+ matrox_id = 0;
+ return -1;
+ }
+
+ reg40 = pci_read_long(bus_id, 0x40);
+#if 0 /* overclock a little :) */
+ {
+ int rfhcnt = (reg40 >> 16) & 0xF;
+ if ((reg40 & 0x200000) && (rfhcnt < 0xC)) {
+ pci_write_long(bus_id, 0x40, (reg40 & 0xFFF0FFFF) | 0x000C0000);
+ }
+ }
+#endif
+
+ /* read hardware configuration data */
+ for (i=0; i<2; i++)
+ pci_base[i] = pci_read_long(bus_id, 16+i*4);
+
+ /* work out the linear framebuffer and MMIO addresses */
+ if (matrox_id == MATROX_MILL_ID) {
+ if (pci_base[0])
+ io_mem_base[0] = pci_base[0] & 0xFFFFC000;
+
+ if (pci_base[1])
+ linear_base = pci_base[1] & 0xFF800000;
+ }
+
+ if (!linear_base || !io_mem_base[0])
+ return NULL;
+
+ /* deal with the memory mapping crap */
+ io_mem_size[0] = 0x4000;
+
+ for (i=0; i<4; i++) {
+ if (io_mem_base[i]) {
+ if (_create_mmap(&mgaptr.io_mem_map[i], io_mem_base[i], io_mem_size[i])) {
+ mga_hw_fini();
+ return NULL;
+ }
+ }
+ }
+
+ *vram = linear_size = _mga_get_vram(matrox_id, linear_base);
+
+ if (_create_mmap(&mgaptr.linear_map, linear_base, linear_size)) {
+ mga_hw_fini();
+ return NULL;
+ }
+
+ /* fill in user data */
+ *interleave = linear_size > 2*1024*1024;
+
+ return matrox_id;
+}
+
+
+
+/* PCI routines added by SET */
+#define PCIAddr 0xCF8
+#define PCIData 0xCFC
+#define PCIEnable 0x80000000
+
+
+
+/* FindPCIDevice:
+ * Replacement for the INT 1A - PCI BIOS v2.0c+ - FIND PCI DEVICE, AX = B102h
+ *
+ * Note: deviceIndex is because a card can hold more than one PCI chip.
+ *
+ * Searches the board of the vendor supplied in vendorID with
+ * identification number deviceID and index deviceIndex (normally 0).
+ * The value returned in handle can be used to access the PCI registers
+ * of this board.
+ *
+ * Return: 1 if found 0 if not found.
+ */
+static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle)
+{
+ int model, vendor, card, device;
+ unsigned value, full_id, bus, busMax;
+
+ deviceIndex <<= 8;
+
+ /* for each PCI bus */
+ for (bus=0, busMax=0x10000; bus<busMax; bus+=0x10000) {
+
+ /* for each hardware device */
+ for (device=0, card=0; card<32; card++, device+=0x800) {
+ value = PCIEnable | bus | deviceIndex | device;
+ outportl(PCIAddr, value);
+ full_id = inportl(PCIData);
+
+ /* get the vendor and model ID */
+ vendor = full_id & 0xFFFF;
+ model = full_id >> 16;
+
+ if (vendor != 0xFFFF) {
+ /* is this the one we want? */
+ if ((deviceID == model) && (vendorID == vendor)) {
+ *handle = value;
+ return 1;
+ }
+
+ /* is it a bridge to a secondary bus? */
+ outportl(PCIAddr, value | 8);
+
+ if (((inportl(PCIData) >> 16) == 0x0600) || (full_id==0x00011011))
+ busMax += 0x10000;
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+
+/* Desc:
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static unsigned long pci_read_long (int handle, int index)
+{
+ outportl(PCIAddr, PCIEnable | handle | index);
+ return inportl(PCIData);
+}
+
+
+
+/* Desc:
+ *
+ * In :
+ * Out :
+ *
+ * Note:
+ */
+static void pci_write_long (int handle, int index, unsigned long value)
+{
+ outportl(PCIAddr, PCIEnable | handle | index);
+ outportl(PCIData, value);
+}
diff --git a/src/mesa/drivers/dos/mga/mga_hw.h b/src/mesa/drivers/dos/mga/mga_hw.h
new file mode 100644
index 0000000..246ed9c
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/mga_hw.h
@@ -0,0 +1,113 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W HW mapping
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef MGA_HW_included
+#define MGA_HW_included
+
+
+
+/* set this to zero to use near pointers */
+#define MGA_FARPTR 1
+
+
+
+/* access macros */
+#if MGA_FARPTR
+
+#include <sys/farptr.h>
+
+#define hwptr_pokeb(ptr, off, val) _farpokeb((ptr).selector, (ptr).offset32+(off), (val))
+#define hwptr_pokew(ptr, off, val) _farpokew((ptr).selector, (ptr).offset32+(off), (val))
+#define hwptr_pokel(ptr, off, val) _farpokel((ptr).selector, (ptr).offset32+(off), (val))
+
+#define hwptr_peekb(ptr, off) _farpeekb((ptr).selector, (ptr).offset32+(off))
+#define hwptr_peekw(ptr, off) _farpeekw((ptr).selector, (ptr).offset32+(off))
+#define hwptr_peekl(ptr, off) _farpeekl((ptr).selector, (ptr).offset32+(off))
+
+#define hwptr_select(ptr) _farsetsel((ptr).selector)
+#define hwptr_unselect(ptr) (ptr).selector = _fargetsel()
+
+#define hwptr_nspokeb(ptr, off, val) _farnspokeb((ptr).offset32+(off), (val))
+#define hwptr_nspokew(ptr, off, val) _farnspokew((ptr).offset32+(off), (val))
+#define hwptr_nspokel(ptr, off, val) _farnspokel((ptr).offset32+(off), (val))
+
+#define hwptr_nspeekb(ptr, off) _farnspeekb((ptr).offset32+(off))
+#define hwptr_nspeekw(ptr, off) _farnspeekw((ptr).offset32+(off))
+#define hwptr_nspeekl(ptr, off) _farnspeekl((ptr).offset32+(off))
+
+#else
+
+#define hwptr_pokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
+#define hwptr_pokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
+#define hwptr_pokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
+
+#define hwptr_peekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
+#define hwptr_peekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
+#define hwptr_peekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
+
+#define hwptr_select(ptr)
+#define hwptr_unselect(ptr)
+
+#define hwptr_nspokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
+#define hwptr_nspokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
+#define hwptr_nspokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
+
+#define hwptr_nspeekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
+#define hwptr_nspeekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
+#define hwptr_nspeekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
+
+#endif
+
+
+
+/* helpers for accessing the Matrox registers */
+#define mga_select() hwptr_select(mgaptr.io_mem_map[0])
+#define mga_inb(addr) hwptr_nspeekb(mgaptr.io_mem_map[0], addr)
+#define mga_inw(addr) hwptr_nspeekw(mgaptr.io_mem_map[0], addr)
+#define mga_inl(addr) hwptr_nspeekl(mgaptr.io_mem_map[0], addr)
+#define mga_outb(addr, val) hwptr_nspokeb(mgaptr.io_mem_map[0], addr, val)
+#define mga_outw(addr, val) hwptr_nspokew(mgaptr.io_mem_map[0], addr, val)
+#define mga_outl(addr, val) hwptr_nspokel(mgaptr.io_mem_map[0], addr, val)
+
+
+
+typedef struct MGA_HWPTR {
+ __dpmi_paddr io_mem_map[4], linear_map;
+} MGA_HWPTR;
+
+extern MGA_HWPTR mgaptr;
+
+void mga_hw_fini (void);
+int mga_hw_init (unsigned long *vram, int *interleave, char *name);
+
+#endif
diff --git a/src/mesa/drivers/dos/mga/mga_mode.c b/src/mesa/drivers/dos/mga/mga_mode.c
new file mode 100644
index 0000000..33f47a6
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/mga_mode.c
@@ -0,0 +1,231 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W mode switching
+ *
+ * Copyright (c) 2003 - 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/farptr.h>
+#include <sys/movedata.h>
+#include <sys/segments.h>
+
+#include "../internal.h"
+#include "mga_mode.h"
+
+
+
+static MGA_MODE oldmode;
+static MGA_MODE modes[64];
+
+
+
+/*
+ * 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
+
+
+
+/* Desc: get available modes
+ *
+ * In : -
+ * Out : linear modes list ptr
+ *
+ * Note: shouldn't use VESA...
+ */
+static MGA_MODE *_mga_mode_check (void)
+{
+ __dpmi_regs r;
+ word16 *p;
+ MGA_MODE *q;
+ char vesa_info[512], tmp[512];
+
+ _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 NULL;
+ }
+
+ 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 8:
+ 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 && (tmp[M_ATTR]&0x80)) {
+ q->xres = _16_ tmp[M_XRES];
+ q->yres = _16_ tmp[M_YRES];
+ q->mode |= 0x4000;
+ q++;
+ }
+ } while (TRUE);
+
+ return modes;
+}
+
+
+
+/* Desc: save current mode
+ *
+ * In : ptr to mode structure
+ * Out : 0 if success
+ *
+ * Note: shouldn't use VESA...
+ */
+static int _mga_mode_save (MGA_MODE *p)
+{
+ __asm("\n\
+ movw $0x4f03, %%ax \n\
+ int $0x10 \n\
+ movl %%ebx, %0 \n\
+ ":"=g"(p->mode)::"%eax", "%ebx");
+ return 0;
+}
+
+
+
+/* Desc: switch to specified mode
+ *
+ * In : ptr to mode structure, refresh rate
+ * Out : 0 if success
+ *
+ * Note: shouldn't use VESA...
+ */
+int mga_mode_switch (MGA_MODE *p, int refresh)
+{
+ if (oldmode.mode == 0) {
+ _mga_mode_save(&oldmode);
+ }
+ __asm("movw $0x4f02, %%ax; int $0x10"::"b"(p->mode):"%eax");
+ return 0;
+
+ (void)refresh; /* silence compiler warning */
+}
+
+
+
+/* Desc: restore to the mode prior to first call to `mga_switch'
+ *
+ * In : -
+ * Out : 0 if success
+ *
+ * Note: shouldn't use VESA...
+ */
+int mga_mode_restore (void)
+{
+ if (oldmode.mode != 0) {
+ __asm("movw $0x4f02, %%ax; int $0x10"::"b"(oldmode.mode):"%eax");
+ oldmode.mode = 0;
+ }
+ return 0;
+}
+
+
+
+/* Desc: return suitable mode
+ *
+ * In : width, height, bpp
+ * Out : ptr to mode structure
+ *
+ * Note: -
+ */
+MGA_MODE *mga_mode_find (int width, int height, int bpp)
+{
+ static MGA_MODE *q = NULL;
+
+ MGA_MODE *p;
+ unsigned int min;
+
+ if (q == NULL) {
+ if ((q = _mga_mode_check()) == NULL) {
+ return NULL;
+ }
+ }
+
+ /* search for a mode that fits our request */
+ 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;
+ }
+ }
+ }
+
+ return p;
+}
diff --git a/src/mesa/drivers/dos/vesa/vesa.h b/src/mesa/drivers/dos/mga/mga_mode.h
similarity index 71%
copy from src/mesa/drivers/dos/vesa/vesa.h
copy to src/mesa/drivers/dos/mga/mga_mode.h
index eb914e1..4049bd8 100644
--- a/src/mesa/drivers/dos/vesa/vesa.h
+++ b/src/mesa/drivers/dos/mga/mga_mode.h
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 4.0
+ * Version: 5.0
*
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2002 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"),
@@ -23,25 +23,25 @@
*/
/*
- * DOS/DJGPP device driver v1.3 for Mesa 5.0
+ * DOS/DJGPP device driver v1.3 for Mesa 5.0 -- MGA2064W mode switching
*
- * Copyright (C) 2002 - Borca Daniel
+ * Copyright (c) 2003 - Borca Daniel
* Email : dborca@yahoo.com
* Web : http://www.geocities.com/dborca
*/
-#ifndef VESA_H_included
-#define VESA_H_included
+#ifndef MGA_MODE_included
+#define MGA_MODE_included
-#include "../internal.h"
+typedef struct MGA_MODE {
+ int mode;
+ int xres, yres;
+ int bpp;
+} MGA_MODE;
-extern void *vesa_swbank;
-
-extern void vesa_b_dump_virtual (void);
-extern void vesa_l_dump_virtual (void);
-extern void vesa_l_dump_virtual_mmx (void);
-
-extern vl_driver VESA;
+int mga_mode_switch (MGA_MODE *p, int refresh);
+int mga_mode_restore (void);
+MGA_MODE *mga_mode_find (int width, int height, int bpp);
#endif
diff --git a/src/mesa/drivers/dos/mga/mga_reg.h b/src/mesa/drivers/dos/mga/mga_reg.h
new file mode 100644
index 0000000..73d22de
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/mga_reg.h
@@ -0,0 +1,207 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.0
+ *
+ * Copyright (C) 1999-2002 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 v1.3 for Mesa 5.0 -- MGA2064W register mnemonics
+ *
+ * Copyright (c) 2003 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef MGA_REG_H_included
+#define MGA_REG_H_included
+
+/* Matrox hardware registers: */
+#define M_AR0 0x1C60
+#define M_AR1 0x1C64
+#define M_AR2 0x1C68
+#define M_AR3 0x1C6C
+#define M_AR4 0x1C70
+#define M_AR5 0x1C74
+#define M_AR6 0x1C78
+#define M_BCOL 0x1C20
+#define M_CXBNDRY 0x1C80
+#define M_CXLEFT 0x1CA0
+#define M_CXRIGHT 0x1CA4
+#define M_DR0 0x1CC0
+#define M_DR2 0x1CC8
+#define M_DR3 0x1CCC
+#define M_DR4 0x1CD0
+#define M_DR6 0x1CD8
+#define M_DR7 0x1CDC
+#define M_DR8 0x1CE0
+#define M_DR10 0x1CE8
+#define M_DR11 0x1CEC
+#define M_DR12 0x1CF0
+#define M_DR14 0x1CF8
+#define M_DR15 0x1CFC
+#define M_DWGCTL 0x1C00
+#define M_FCOL 0x1C24
+#define M_FIFOSTATUS 0x1E10
+#define M_FXBNDRY 0x1C84
+#define M_FXLEFT 0x1CA8
+#define M_FXRIGHT 0x1CAC
+#define M_ICLEAR 0x1E18
+#define M_IEN 0x1E1C
+#define M_LEN 0x1C5C
+#define M_MACCESS 0x1C04
+#define M_OPMODE 0x1E54
+#define M_PAT0 0x1C10
+#define M_PAT1 0x1C14
+#define M_PITCH 0x1C8C
+#define M_PLNWT 0x1C1C
+#define M_RESET 0x1E40
+#define M_SGN 0x1C58
+#define M_SHIFT 0x1C50
+#define M_SRC0 0x1C30
+#define M_SRC1 0x1C34
+#define M_SRC2 0x1C38
+#define M_SRC3 0x1C3C
+#define M_STATUS 0x1E14
+#define M_VCOUNT 0x1E20
+#define M_XDST 0x1CB0
+#define M_XYEND 0x1C44
+#define M_XYSTRT 0x1C40
+#define M_YBOT 0x1C9C
+#define M_YDST 0x1C90
+#define M_YDSTLEN 0x1C88
+#define M_YDSTORG 0x1C94
+#define M_YTOP 0x1C98
+#define M_ZORG 0x1C0C
+
+#define M_EXEC 0x0100
+
+/* DWGCTL: opcod */
+#define M_DWG_LINE_OPEN 0x0
+#define M_DWG_AUTOLINE_OPEN 0x1
+#define M_DWG_LINE_CLOSE 0x2
+#define M_DWG_AUTOLINE_CLOSE 0x3
+#define M_DWG_TRAP 0x4
+#define M_DWG_TEXTURE_TRAP 0x5
+#define M_DWG_BITBLT 0x8
+#define M_DWG_FBITBLT 0xC
+#define M_DWG_ILOAD 0x9
+#define M_DWG_ILOAD_SCALE 0xD
+#define M_DWG_ILOAD_FILTER 0xF
+#define M_DWG_IDUMP 0xA
+
+/* DWGCTL: atype */
+#define M_DWG_RPL (0x0 << 4)
+#define M_DWG_RSTR (0x1 << 4)
+#define M_DWG_ZI (0x3 << 4)
+#define M_DWG_BLK (0x4 << 4)
+#define M_DWG_I (0x7 << 4)
+
+/* DWGCTL: linear */
+#define M_DWG_LINEAR (0x1 << 7)
+
+/* DWGCTL: zmode */
+#define M_DWG_NOZCMP (0x0 << 8)
+#define M_DWG_ZE (0x2 << 8)
+#define M_DWG_ZNE (0x3 << 8)
+#define M_DWG_ZLT (0x4 << 8)
+#define M_DWG_ZLTE (0x5 << 8)
+#define M_DWG_ZGT (0x6 << 8)
+#define M_DWG_ZGTE (0x7 << 8)
+
+/* DWGCTL: solid */
+#define M_DWG_SOLID (0x1 << 11)
+
+/* DWGCTL: arzero */
+#define M_DWG_ARZERO (0x1 << 12)
+
+/* DWGCTL: sgnzero */
+#define M_DWG_SGNZERO (0x1 << 13)
+
+/* DWGCTL: shiftzero */
+#define M_DWG_SHFTZERO (0x1 << 14)
+
+/* DWGCTL: bop */
+#define M_DWG_BOP_XOR (0x6 << 16)
+#define M_DWG_BOP_AND (0x8 << 16)
+#define M_DWG_BOP_SRC (0xC << 16)
+#define M_DWG_BOP_OR (0xE << 16)
+
+/* DWGCTL: trans */
+#define M_DWG_TRANS_0 (0x0 << 20)
+#define M_DWG_TRANS_1 (0x1 << 20)
+#define M_DWG_TRANS_2 (0x2 << 20)
+#define M_DWG_TRANS_3 (0x3 << 20)
+#define M_DWG_TRANS_4 (0x4 << 20)
+#define M_DWG_TRANS_5 (0x5 << 20)
+#define M_DWG_TRANS_6 (0x6 << 20)
+#define M_DWG_TRANS_7 (0x7 << 20)
+#define M_DWG_TRANS_8 (0x8 << 20)
+#define M_DWG_TRANS_9 (0x9 << 20)
+#define M_DWG_TRANS_A (0xA << 20)
+#define M_DWG_TRANS_B (0xB << 20)
+#define M_DWG_TRANS_C (0xC << 20)
+#define M_DWG_TRANS_D (0xD << 20)
+#define M_DWG_TRANS_E (0xE << 20)
+#define M_DWG_TRANS_F (0xF << 20)
+
+/* DWGCTL: bltmod */
+#define M_DWG_BMONOLEF (0x0 << 25)
+#define M_DWG_BMONOWF (0x4 << 25)
+#define M_DWG_BPLAN (0x1 << 25)
+#define M_DWG_BFCOL (0x2 << 25)
+#define M_DWG_BUYUV (0xE << 25)
+#define M_DWG_BU32BGR (0x3 << 25)
+#define M_DWG_BU32RGB (0x7 << 25)
+#define M_DWG_BU24BGR (0xB << 25)
+#define M_DWG_BU24RGB (0xF << 25)
+
+/* DWGCTL: pattern */
+#define M_DWG_PATTERN (0x1 << 29)
+
+/* DWGCTL: transc */
+#define M_DWG_TRANSC (0x1 << 30)
+
+/* OPMODE: */
+#define M_DMA_GENERAL (0x0 << 2)
+#define M_DMA_BLIT (0x1 << 2)
+#define M_DMA_VECTOR (0x2 << 2)
+
+/* SGN: */
+#define M_SDXL (0x1 << 1)
+#define M_SDXR (0x1 << 5)
+
+
+
+/* VGAREG */
+#define M_CRTC_INDEX 0x1FD4
+#define M_CRTC_DATA 0x1FD5
+
+#define M_CRTC_EXT_INDEX 0x1FDE
+#define M_CRTC_EXT_DATA 0x1FDF
+
+#define M_MISC_R 0x1FCC
+#define M_MISC_W 0x1FC2
+
+/* CRTCEXT3: */
+#define M_MGAMODE (0x1 << 7)
+
+#endif
diff --git a/src/mesa/drivers/dos/vesa/vesa.c b/src/mesa/drivers/dos/vesa.c
similarity index 92%
rename from src/mesa/drivers/dos/vesa/vesa.c
rename to src/mesa/drivers/dos/vesa.c
index 1f3de84..eebaa50 100644
--- a/src/mesa/drivers/dos/vesa/vesa.c
+++ b/src/mesa/drivers/dos/vesa.c
@@ -40,11 +40,12 @@
#include <sys/farptr.h>
#include <sys/movedata.h>
+#include "video.h"
#include "vesa.h"
-static vl_mode modes[64];
+static vl_mode modes[128];
static word16 vesa_ver;
static int banked_selector, linear_selector;
@@ -52,7 +53,7 @@
static int vesa_color_precision = 6;
-static void *vesa_pmcode;
+static word16 *vesa_pmcode;
unsigned int vesa_gran_mask, vesa_gran_shift;
@@ -203,18 +204,22 @@
if (vesa_info[V_MAJOR] >= 2) {
r.x.ax = 0x4f0a;
- r.h.bl = 0;
+ r.x.bx = 0;
__dpmi_int(0x10, &r);
if (r.x.ax == 0x004f) {
- vesa_pmcode = malloc(r.x.cx);
+ vesa_pmcode = (word16 *)malloc(r.x.cx);
movedata(__djgpp_dos_sel, (r.x.es << 4) + r.x.di, _my_ds(), (unsigned)vesa_pmcode, r.x.cx);
- p = (word16 *)((long)vesa_pmcode + ((word16 *)vesa_pmcode)[3]);
- while (*p++ != 0xffff) ;
- if (*p != 0xffff) {
+ if (vesa_pmcode[3]) {
+ p = (word16 *)((long)vesa_pmcode + vesa_pmcode[3]);
+ while (*p++ != 0xffff) ;
+ } else {
+ p = NULL;
+ }
+ if (p && (*p != 0xffff)) {
free(vesa_pmcode);
vesa_pmcode = NULL;
} else {
- vesa_swbank = (char *)vesa_pmcode + ((word16 *)vesa_pmcode)[0];
+ vesa_swbank = (void *)((long)vesa_pmcode + vesa_pmcode[0]);
}
}
}
@@ -232,7 +237,7 @@
*
* Note: -
*/
-static void vesa_finit (void)
+static void vesa_fini (void)
{
if (vesa_ver) {
_remove_selector(&linear_selector);
@@ -363,7 +368,7 @@
__dpmi_regs r;
if (p->mode & 0x4000) {
- VESA.blit = vl_can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
+ VESA.blit = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
} else {
VESA.blit = vesa_b_dump_virtual;
{ int n; for (vesa_gran_shift=0, n=p->gran; n; vesa_gran_shift++, n>>=1) ; }
@@ -492,16 +497,23 @@
-/* Desc: retrieve CI precision
+/* Desc: state retrieval
*
- * In : -
- * Out : precision in bits
+ * In : parameter name, ptr to storage
+ * Out : 0 if request successfully processed
*
* Note: -
*/
-static int vesa_getCIprec (void)
+static int vesa_get (int pname, int *params)
{
- return vesa_color_precision;
+ switch (pname) {
+ case VL_GET_CI_PREC:
+ params[0] = vesa_color_precision;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
}
@@ -515,7 +527,7 @@
NULL,
vesa_setCI_f,
vesa_setCI_i,
- vesa_getCIprec,
+ vesa_get,
vesa_restore,
- vesa_finit
+ vesa_fini
};
diff --git a/src/mesa/drivers/dos/vesa/vesa.h b/src/mesa/drivers/dos/vesa.h
similarity index 98%
rename from src/mesa/drivers/dos/vesa/vesa.h
rename to src/mesa/drivers/dos/vesa.h
index eb914e1..369196f 100644
--- a/src/mesa/drivers/dos/vesa/vesa.h
+++ b/src/mesa/drivers/dos/vesa.h
@@ -34,7 +34,7 @@
#ifndef VESA_H_included
#define VESA_H_included
-#include "../internal.h"
+#include "internal.h"
extern void *vesa_swbank;
diff --git a/src/mesa/drivers/dos/vga/vga.c b/src/mesa/drivers/dos/vga.c
similarity index 87%
rename from src/mesa/drivers/dos/vga/vga.c
rename to src/mesa/drivers/dos/vga.c
index d1d2db5..ed89962 100644
--- a/src/mesa/drivers/dos/vga/vga.c
+++ b/src/mesa/drivers/dos/vga.c
@@ -34,11 +34,12 @@
#include <pc.h>
#include <stdlib.h>
+#include "video.h"
#include "vga.h"
-static vl_mode modes[4] = {
+static vl_mode modes[] = {
{0x13 | 0x4000, 320, 200, 320, 8, -1, 320*200},
{0xffff, -1, -1, -1, -1, -1, -1}
};
@@ -99,7 +100,7 @@
*
* Note: -
*/
-static void vga_finit (void)
+static void vga_fini (void)
{
if (vga_ver) {
_remove_selector(&linear_selector);
@@ -120,7 +121,7 @@
if (!(p->mode & 0x4000)) {
return -1;
}
- VGA.blit = vl_can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
+ VGA.blit = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual;
if (oldmode == -1) {
__asm("\n\
@@ -134,6 +135,8 @@
__asm("int $0x10"::"a"(p->mode&0xff));
return 0;
+
+ (void)refresh; /* silence compiler warning */
}
@@ -196,16 +199,23 @@
-/* Desc: retrieve CI precision
+/* Desc: state retrieval
*
- * In : -
- * Out : precision in bits
+ * In : parameter name, ptr to storage
+ * Out : 0 if request successfully processed
*
* Note: -
*/
-static int vga_getCIprec (void)
+static int vga_get (int pname, int *params)
{
- return vga_color_precision;
+ switch (pname) {
+ case VL_GET_CI_PREC:
+ params[0] = vga_color_precision;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
}
@@ -219,7 +229,7 @@
NULL,
vga_setCI_f,
vga_setCI_i,
- vga_getCIprec,
+ vga_get,
vga_restore,
- vga_finit
+ vga_fini
};
diff --git a/src/mesa/drivers/dos/vga/vga.h b/src/mesa/drivers/dos/vga.h
similarity index 96%
rename from src/mesa/drivers/dos/vga/vga.h
rename to src/mesa/drivers/dos/vga.h
index b7ae84c..d104794 100644
--- a/src/mesa/drivers/dos/vga/vga.h
+++ b/src/mesa/drivers/dos/vga.h
@@ -34,8 +34,8 @@
#ifndef VGA_H_included
#define VGA_H_included
-#include "../internal.h"
-#include "../vesa/vesa.h"
+#include "internal.h"
+#include "vesa.h"
extern vl_driver VGA;
diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c
index aba99ac..3e93e60 100644
--- a/src/mesa/drivers/dos/video.c
+++ b/src/mesa/drivers/dos/video.c
@@ -35,10 +35,10 @@
#include <stdlib.h>
-#include "video.h"
#include "internal.h"
-#include "vesa/vesa.h"
-#include "vga/vga.h"
+#include "vesa.h"
+#include "vga.h"
+#include "video.h"
@@ -56,22 +56,22 @@
/* lookup table for scaling 5 bit colors up to 8 bits */
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,
- 197, 205, 213, 222, 230, 238, 246, 255
+ 0, 8, 16, 25, 33, 41, 49, 58,
+ 66, 74, 82, 90, 99, 107, 115, 123,
+ 132, 140, 148, 156, 165, 173, 181, 189,
+ 197, 206, 214, 222, 230, 239, 247, 255
};
/* lookup table for scaling 6 bit colors up to 8 bits */
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,
+ 32, 36, 40, 45, 49, 53, 57, 61,
+ 65, 69, 73, 77, 81, 85, 89, 93,
97, 101, 105, 109, 113, 117, 121, 125,
- 129, 133, 137, 141, 145, 149, 153, 157,
- 161, 165, 170, 174, 178, 182, 186, 190,
- 194, 198, 202, 206, 210, 214, 218, 222,
- 226, 230, 234, 238, 242, 246, 250, 255
+ 130, 134, 138, 142, 146, 150, 154, 158,
+ 162, 166, 170, 174, 178, 182, 186, 190,
+ 194, 198, 202, 206, 210, 215, 219, 223,
+ 227, 231, 235, 239, 243, 247, 251, 255
};
/* FakeColor data */
@@ -376,36 +376,24 @@
-/* Desc: get screen geometry
+/* Desc: state retrieval
*
- * In : ptr to WIDTH, ptr to HEIGHT
+ * In : name, storage
* Out : -
*
* Note: -
*/
-void vl_get_screen_size (int *width, int *height)
+int vl_get (int pname, int *params)
{
- *width = video_mode->xres;
- *height = video_mode->yres;
-}
-
-
-
-/* Desc: retrieve CPU MMX capability
- *
- * In : -
- * Out : FALSE if CPU cannot do MMX
- *
- * Note: -
- */
-int vl_can_mmx (void)
-{
-#ifdef USE_MMX_ASM
- extern int _mesa_identify_x86_cpu_features (void);
- return (_mesa_identify_x86_cpu_features() & 0x00800000);
-#else
+ switch (pname) {
+ case VL_GET_SCREEN_SIZE:
+ params[0] = video_mode->xres;
+ params[1] = video_mode->yres;
+ break;
+ default:
+ return drv->get(pname, params);
+ }
return 0;
-#endif
}
@@ -431,7 +419,7 @@
vl_mixfix = vl_mixfix##bpp; \
vl_mixrgb = vl_mixrgb##bpp; \
vl_mixrgba = vl_mixrgba##bpp; \
- vl_clear = vl_can_mmx() ? v_clear##bpp##_mmx : v_clear##bpp
+ vl_clear = _can_mmx() ? v_clear##bpp##_mmx : v_clear##bpp
switch (p->bpp) {
case 8:
@@ -475,7 +463,7 @@
void vl_video_exit (void)
{
drv->restore();
- drv->finit();
+ drv->fini();
}
@@ -523,7 +511,7 @@
if ((vl_setup_mode(p) == 0) && (drv->entermode(p, refresh) == 0)) {
vl_flip = drv->blit;
if (fake) {
- min = drv->getCIprec();
+ drv->get(VL_GET_CI_PREC, (int *)(&min));
fake_buildpalette(min);
if (min == 8) {
vl_getrgba = v_getrgba8fake8;
diff --git a/src/mesa/drivers/dos/video.h b/src/mesa/drivers/dos/video.h
index 8dfb9a9..e908178 100644
--- a/src/mesa/drivers/dos/video.h
+++ b/src/mesa/drivers/dos/video.h
@@ -36,6 +36,12 @@
typedef int fixed;
+#define VL_GET_CARD_NAME 0x0100
+#define VL_GET_VRAM 0x0101
+#define VL_GET_CI_PREC 0x0200
+#define VL_GET_HPIXELS 0x0201
+#define VL_GET_SCREEN_SIZE 0x0202
+
extern int (*vl_mixfix) (fixed r, fixed g, fixed b);
extern int (*vl_mixrgb) (const unsigned char rgb[]);
extern int (*vl_mixrgba) (const unsigned char rgba[]);
@@ -50,7 +56,7 @@
void vl_setCI (int index, float red, float green, float blue);
int vl_sync_buffer (void **buffer, int x, int y, int width, int height);
-void vl_get_screen_size (int *width, int *height);
+int vl_get (int pname, int *params);
void vl_video_exit (void);
int vl_video_init (int width, int height, int bpp, int rgb, int refresh);
diff --git a/src/mesa/drivers/dos/virtual.S b/src/mesa/drivers/dos/virtual.S
index c5a7297..0605514 100644
--- a/src/mesa/drivers/dos/virtual.S
+++ b/src/mesa/drivers/dos/virtual.S
@@ -108,7 +108,7 @@
.global _v_clear8_mmx
_v_clear8_mmx:
#ifdef USE_MMX_ASM
- movq 4(%esp), %mm0
+ movd 4(%esp), %mm0
punpcklbw %mm0, %mm0
punpcklwd %mm0, %mm0
jmp _v_clear_common_mmx
@@ -125,7 +125,7 @@
.global _v_clear16_mmx
_v_clear16_mmx:
#ifdef USE_MMX_ASM
- movq 4(%esp), %mm0
+ movd 4(%esp), %mm0
punpcklwd %mm0, %mm0
jmp _v_clear_common_mmx
#endif
@@ -141,7 +141,7 @@
.global _v_clear32_mmx
_v_clear32_mmx:
#ifdef USE_MMX_ASM
- movq 4(%esp), %mm0
+ movd 4(%esp), %mm0
.balign 4
_v_clear_common_mmx:
punpckldq %mm0, %mm0
diff --git a/src/mesa/main/Makefile.DJ b/src/mesa/main/Makefile.DJ
index cabeff1..e2714f9 100644
--- a/src/mesa/main/Makefile.DJ
+++ b/src/mesa/main/Makefile.DJ
@@ -40,6 +40,9 @@
# As a consequence, you'll need the DJGPP Glide3
# library to build any application.
# default = no
+# MATROX=1 build for Matrox Millennium I (MGA2064W) cards.
+# This is experimental and not intensively tested.
+# default = no
# HAVE_X86=1 optimize for i386.
# default = no
# HAVE_MMX=1 allow MMX specializations, provided your assembler
@@ -70,8 +73,17 @@
CC = gcc
CFLAGS += -I$(TOP)/include -I.
-ifdef FX
-CFLAGS += -D__DOS__ -I$(GLIDE) -DFX -DFX_GLIDE3 -DFXMESA_USE_ARGB
+ifeq ($(FX),1)
+CFLAGS += -D__DOS__ -DH3
+CFLAGS += -I$(GLIDE) -DFX -DFX_GLIDE3 -DFXMESA_USE_ARGB
+LIBNAME = "MesaGL/FX DJGPP"
+else
+ifeq ($(MATROX),1)
+CFLAGS += -DMATROX
+LIBNAME = "MesaGL/MGA DJGPP"
+else
+LIBNAME = "MesaGL DJGPP"
+endif
endif
AR = ar
@@ -228,22 +240,22 @@
X86/3dnow_xform4.S \
X86/3dnow_normal.S
-ifdef HAVE_MMX
+ifeq ($(HAVE_MMX),1)
X86_SOURCES += $(MMX_SOURCES)
CFLAGS += -DUSE_MMX_ASM
HAVE_X86 = 1
endif
-ifdef HAVE_SSE
+ifeq ($(HAVE_SSE),1)
X86_SOURCES += $(SSE_SOURCES)
CFLAGS += -DUSE_SSE_ASM
HAVE_X86 = 1
endif
-ifdef HAVE_3DNOW
+ifeq ($(HAVE_3DNOW),1)
X86_SOURCES += $(K3D_SOURCES)
CFLAGS += -DUSE_3DNOW_ASM
HAVE_X86 = 1
endif
-ifdef HAVE_X86
+ifeq ($(HAVE_X86),1)
CFLAGS += -DUSE_X86_ASM
else
X86_SOURCES =
@@ -251,15 +263,7 @@
DRIVER_SOURCES = \
DOS/dmesa.c
-ifndef FX
-DRIVER_SOURCES += \
- DOS/video.c \
- DOS/virtual.S \
- DOS/vesa/vesa.c \
- DOS/vesa/blit.S \
- DOS/vga/vga.c \
- DOS/dpmi.c
-else
+ifeq ($(FX),1)
DRIVER_SOURCES += \
FX/fxapi.c \
FX/fxdd.c \
@@ -270,6 +274,22 @@
FX/fxtris.c \
FX/fxvb.c \
FX/fxglidew.c
+else
+ifeq ($(MATROX),1)
+DRIVER_SOURCES += \
+ DOS/mga/mga.c \
+ DOS/mga/mga_hw.c \
+ DOS/mga/mga_mode.c \
+ DOS/dpmi.c
+else
+DRIVER_SOURCES += \
+ DOS/video.c \
+ DOS/virtual.S \
+ DOS/vesa.c \
+ DOS/blit.S \
+ DOS/vga.c \
+ DOS/dpmi.c
+endif
endif
SOURCES = $(CORE_SOURCES) $(X86_SOURCES) $(DRIVER_SOURCES)
@@ -295,10 +315,10 @@
$(warning Missing DXE3GEN and/or DXE3.LD! You must have DXE3GEN)
$(warning somewhere in PATH, and DXE3.LD in DJGPP/LIB directory.)
else
-ifdef FX
- -dxe3gen -o $(LIBDIR)/$(GL_DXE) -I $(LIBDIR)/$(GL_IMP) -D "MesaGL/FX DJGPP" -E _gl -E _DMesa -P glid3.dxe -U $(OBJECTS)
+ifeq ($(FX),1)
+ -dxe3gen -o $(LIBDIR)/$(GL_DXE) -I $(LIBDIR)/$(GL_IMP) -D $(LIBNAME) -E _gl -E _DMesa -P glid3.dxe -U $(OBJECTS)
else
- -dxe3gen -o $(LIBDIR)/$(GL_DXE) -I $(LIBDIR)/$(GL_IMP) -D "MesaGL DJGPP" -E _gl -E _DMesa -U $(OBJECTS)
+ -dxe3gen -o $(LIBDIR)/$(GL_DXE) -I $(LIBDIR)/$(GL_IMP) -D $(LIBNAME) -E _gl -E _DMesa -U $(OBJECTS)
endif
endif
@@ -319,8 +339,7 @@
-$(RM) $(subst /,\,tnl/*.o)
-$(RM) $(subst /,\,X86/*.o)
-$(RM) $(subst /,\,DOS/*.o)
- -$(RM) $(subst /,\,DOS/vesa/*.o)
- -$(RM) $(subst /,\,DOS/vga/*.o)
+ -$(RM) $(subst /,\,DOS/mga/*.o)
-$(RM) $(subst /,\,FX/*.o)
-include depend