add SPARC ffb DRI driver

1 files changed, 142 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/ffb/ffb_span.c b/src/mesa/drivers/dri/ffb/ffb_span.c
new file mode 100644
index 0000000..6927945
--- /dev/null
+++ b/src/mesa/drivers/dri/ffb/ffb_span.c
@@ -0,0 +1,142 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_span.c,v 1.2 2002/02/22 21:32:59 dawes Exp $
+ *
+ * GLX Hardware Device Driver for Sun Creator/Creator3D
+ * Copyright (C) 2000 David S. Miller
+ *
+ * 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
+ * DAVID MILLER, OR ANY OTHER CONTRIBUTORS 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.
+ *
+ *
+ *    David S. Miller <davem@redhat.com>
+ */
+
+#include "mtypes.h"
+#include "ffb_dd.h"
+#include "ffb_span.h"
+#include "ffb_context.h"
+#include "ffb_lock.h"
+
+#include "swrast/swrast.h"
+
+#define DBG 0
+
+#define HW_LOCK()						\
+	ffbContextPtr fmesa = FFB_CONTEXT(ctx);			\
+	if (!fmesa->hw_locked)					\
+		LOCK_HARDWARE(fmesa);
+
+#define HW_UNLOCK()			\
+	if (!fmesa->hw_locked)		\
+		UNLOCK_HARDWARE(fmesa); \
+
+#define LOCAL_VARS						\
+	__DRIdrawablePrivate *dPriv = fmesa->driDrawable;	\
+	GLuint height = dPriv->h;				\
+        GLuint p;						\
+	char *buf; 						\
+        (void) p
+
+#define INIT_MONO_PIXEL(p, color)		\
+        p = ((color[0] <<  0) |			\
+	     (color[1] << 8) |			\
+	     (color[2] << 16))
+
+/* We use WID clipping, so this test always passes. */
+#define CLIPPIXEL(__x, __y)	(1)
+
+/* And also, due to WID clipping, we need not do anything
+ * special here.
+ */
+#define CLIPSPAN(__x,__y,__n,__x1,__n1,__i)		\
+	__n1 = __n;					\
+	__x1 = __x;					\
+
+#define HW_CLIPLOOP()							\
+do {	unsigned int fbc, ppc, cmp;					\
+	FFBWait(fmesa, fmesa->regs);					\
+	fbc = fmesa->regs->fbc; ppc = fmesa->regs->ppc; cmp = fmesa->regs->cmp; \
+	fmesa->regs->fbc = ((fbc &					\
+			     ~(FFB_FBC_WB_C | FFB_FBC_ZE_MASK | FFB_FBC_RGBE_MASK)) \
+			    | (FFB_FBC_ZE_OFF | FFB_FBC_RGBE_MASK));	\
+	fmesa->regs->ppc = ((ppc &					\
+			     ~(FFB_PPC_XS_MASK | FFB_PPC_ABE_MASK | FFB_PPC_DCE_MASK | \
+			       FFB_PPC_APE_MASK | FFB_PPC_CS_MASK))	\
+			    | (FFB_PPC_XS_WID | FFB_PPC_ABE_DISABLE |	\
+			       FFB_PPC_DCE_DISABLE | FFB_PPC_APE_DISABLE | \
+			       FFB_PPC_CS_VAR));			\
+	fmesa->regs->cmp = ((cmp & ~(0xff << 16)) | (0x80 << 16));	\
+	fmesa->ffbScreen->rp_active = 1;				\
+	FFBWait(fmesa, fmesa->regs);					\
+	buf = (char *)(fmesa->sfb32 + (dPriv->x << 2) + (dPriv->y << 13));\
+	if (dPriv->numClipRects) {
+
+#define HW_ENDCLIPLOOP()	\
+	}			\
+	fmesa->regs->fbc = fbc;	\
+	fmesa->regs->ppc = ppc;	\
+	fmesa->regs->cmp = cmp;	\
+	fmesa->ffbScreen->rp_active = 1; \
+} while(0)
+
+#define Y_FLIP(__y)		(height - __y)
+
+#define READ_RGBA(rgba,__x,__y)					\
+do {	GLuint p = *(GLuint *)(buf + ((__x)<<2) + ((__y)<<13));	\
+	rgba[0] = (p >>  0) & 0xff;				\
+	rgba[1] = (p >>  8) & 0xff;				\
+	rgba[2] = (p >> 16) & 0xff;				\
+	rgba[3] = 0xff;						\
+} while(0)
+
+#define WRITE_RGBA(__x, __y, __r, __g, __b, __a)		\
+	*(GLuint *)(buf + ((__x)<<2) + ((__y)<<13)) =		\
+		((((__r) & 0xff) <<  0) |			\
+		 (((__g) & 0xff) <<  8) |			\
+		 (((__b) & 0xff) << 16))
+
+#define WRITE_PIXEL(__x, __y, __p) \
+	*(GLuint *)(buf + ((__x)<<2) + ((__y)<<13)) = (__p)
+
+#define TAG(x) ffb##x##_888
+
+#include <spantmp.h>
+
+void ffbDDInitSpanFuncs(GLcontext *ctx)
+{
+	struct swrast_device_driver *swdd = 
+		_swrast_GetDeviceDriverReference(ctx);
+   
+	swdd->WriteRGBASpan	= ffbWriteRGBASpan_888;
+	swdd->WriteRGBSpan	= ffbWriteRGBSpan_888;
+	swdd->WriteRGBAPixels	= ffbWriteRGBAPixels_888;
+	swdd->WriteMonoRGBASpan	= ffbWriteMonoRGBASpan_888;
+	swdd->WriteMonoRGBAPixels	= ffbWriteMonoRGBAPixels_888;
+	swdd->ReadRGBASpan	= ffbReadRGBASpan_888;
+	swdd->ReadRGBAPixels	= ffbReadRGBAPixels_888;
+
+	/* We don't support color index mode yet, but it will be
+	 * very easy to do. -DaveM
+	 */
+	swdd->WriteCI8Span        = NULL;
+	swdd->WriteCI32Span       = NULL;
+	swdd->WriteMonoCISpan     = NULL;
+	swdd->WriteCI32Pixels     = NULL;
+	swdd->WriteMonoCIPixels   = NULL;
+	swdd->ReadCI32Span        = NULL;
+	swdd->ReadCI32Pixels      = NULL;
+}