1 files changed, 112 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/ffb/ffb_lines.c b/src/mesa/drivers/dri/ffb/ffb_lines.c
new file mode 100644
index 00000000000..fec6b9306f2
--- /dev/null
+++ b/src/mesa/drivers/dri/ffb/ffb_lines.c
@@ -0,0 +1,112 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_lines.c,v 1.2 2002/02/22 21:32:58 dawes Exp $
+ *
+ * GLX Hardware Device Driver for Sun Creator/Creator3D
+ * Copyright (C) 2000, 2001 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 <[email protected]>
+ */
+
+#include "mtypes.h"
+#include "mm.h"
+#include "mmath.h"
+#include "ffb_dd.h"
+#include "ffb_span.h"
+#include "ffb_depth.h"
+#include "ffb_context.h"
+#include "ffb_vb.h"
+#include "ffb_lines.h"
+#include "ffb_tris.h"
+#include "ffb_lock.h"
+#include "extensions.h"
+
+#undef FFB_LINE_TRACE
+
+#define FFB_LINE_FLAT_BIT	0x01
+#define FFB_LINE_ALPHA_BIT	0x02
+#define MAX_FFB_LINE_FUNCS      0x04
+
+static ffb_line_func ffb_line_tab[MAX_FFB_LINE_FUNCS];
+
+/* If the line is not wide, we can support all of the line
+ * patterning and smooth shading features of OpenGL fully.
+ */
+
+#define IND (0)
+#define TAG(x) x
+#include "ffb_linetmp.h"
+
+#define IND (FFB_LINE_FLAT_BIT)
+#define TAG(x) x##_flat
+#include "ffb_linetmp.h"
+
+#define IND (FFB_LINE_ALPHA_BIT)
+#define TAG(x) x##_alpha
+#include "ffb_linetmp.h"
+
+#define IND (FFB_LINE_ALPHA_BIT|FFB_LINE_FLAT_BIT)
+#define TAG(x) x##_alpha_flat
+#include "ffb_linetmp.h"
+
+void ffbDDLinefuncInit(void)
+{
+	init();
+	init_flat();
+	init_alpha();
+	init_alpha_flat();
+}
+
+static void ffb_dd_line( GLcontext *ctx, GLuint e0, GLuint e1 )
+{
+	ffbContextPtr fmesa = FFB_CONTEXT(ctx);
+	ffb_vertex *v0 = &fmesa->verts[e0];
+	ffb_vertex *v1 = &fmesa->verts[e1];
+	fmesa->draw_line( ctx, v0, v1 );
+}
+
+void ffbChooseLineState(GLcontext *ctx)
+{
+	ffbContextPtr fmesa = FFB_CONTEXT(ctx);
+ 	TNLcontext *tnl = TNL_CONTEXT(ctx);
+	GLuint flags = ctx->_TriangleCaps;
+	GLuint ind = 0;
+
+	tnl->Driver.Render.Line = ffb_dd_line;
+
+	if (flags & DD_FLATSHADE)
+		ind |= FFB_LINE_FLAT_BIT;
+
+	if ((flags & DD_LINE_STIPPLE) != 0 &&
+	    fmesa->lpat == FFB_LPAT_BAD) {
+		fmesa->draw_line = ffb_fallback_line;
+		return;
+	}
+
+	/* If blending or the alpha test is enabled we need to
+	 * provide alpha components to the chip, else we can
+	 * do without it and thus feed vertex data to the chip
+	 * more efficiently.
+	 */
+	if (ctx->Color.BlendEnabled || ctx->Color.AlphaEnabled)
+		ind |= FFB_LINE_ALPHA_BIT;
+
+	fmesa->draw_line = ffb_line_tab[ind];
+}