1 files changed, 131 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_render.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_render.c
new file mode 100644
index 000000000..387473ef5
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_render.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
+ * 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
+ */
+
+
+/*
+ * Render unclipped vertex buffers by emitting vertices directly to
+ * dma buffers.  Use strip/fan hardware acceleration where possible.
+ *
+ */
+#include "glheader.h"
+#include "context.h"
+#include "macros.h"
+#include "mtypes.h"
+
+#include "tnl/t_context.h"
+
+#include "via_context.h"
+#include "via_tris.h"
+#include "via_state.h"
+#include "via_ioctl.h"
+
+/*
+ * Render unclipped vertex buffers by emitting vertices directly to
+ * dma buffers.  Use strip/fan hardware primitives where possible.
+ * Try to simulate missing primitives with indexed vertices.
+ */
+#define HAVE_POINTS      1
+#define HAVE_LINES       1
+#define HAVE_LINE_STRIPS 1
+#define HAVE_LINE_LOOP   1
+#define HAVE_TRIANGLES   1
+#define HAVE_TRI_STRIPS  1
+#define HAVE_TRI_STRIP_1 0  
+#define HAVE_TRI_FANS    1
+#define HAVE_POLYGONS    1
+#define HAVE_QUADS       0
+#define HAVE_QUAD_STRIPS 0
+
+#define HAVE_ELTS        0
+
+#define LOCAL_VARS struct via_context *vmesa = VIA_CONTEXT(ctx)
+#define INIT(prim) do {					\
+   viaRasterPrimitive(ctx, prim, prim);	\
+} while (0)
+#define GET_CURRENT_VB_MAX_VERTS() \
+    ((VIA_DMA_BUF_SZ - (512 + (int)vmesa->dmaLow)) / (vmesa->vertexSize * 4))
+#define GET_SUBSEQUENT_VB_MAX_VERTS() \
+    (VIA_DMA_BUF_SZ - 512) / (vmesa->vertexSize * 4)
+
+#define ALLOC_VERTS( nr ) \
+    viaExtendPrimitive( vmesa, (nr) * vmesa->vertexSize * 4)
+
+#define EMIT_VERTS(ctx, j, nr, buf) \
+    _tnl_emit_vertices_to_buffer(ctx, j, (j)+(nr), buf )  
+    
+#define FLUSH() VIA_FINISH_PRIM( vmesa )
+
+#define TAG(x) via_fast##x
+#include "tnl_dd/t_dd_dmatmp.h"
+#undef TAG
+#undef LOCAL_VARS
+#undef INIT
+
+/**********************************************************************/
+/*                          Fast Render pipeline stage                */
+/**********************************************************************/
+static GLboolean via_run_fastrender(GLcontext *ctx,
+                                    struct tnl_pipeline_stage *stage)
+{
+    struct via_context *vmesa = VIA_CONTEXT(ctx);
+    TNLcontext *tnl = TNL_CONTEXT(ctx);
+    struct vertex_buffer *VB = &tnl->vb;
+    GLuint i;
+    
+
+    tnl->Driver.Render.Start(ctx);
+    
+    if (VB->ClipOrMask || 
+	vmesa->renderIndex != 0 || 
+	!via_fastvalidate_render( ctx, VB )) {
+	tnl->Driver.Render.Finish(ctx);
+        return GL_TRUE;
+    }
+
+    tnl->clipspace.new_inputs |= VERT_BIT_POS;
+
+    for (i = 0; i < VB->PrimitiveCount; ++i) {
+        GLuint mode = VB->Primitive[i].mode;
+        GLuint start = VB->Primitive[i].start;
+        GLuint length = VB->Primitive[i].count;
+        if (length)
+            via_fastrender_tab_verts[mode & PRIM_MODE_MASK](ctx, start, start+length, mode);
+    }
+
+    tnl->Driver.Render.Finish(ctx);
+
+    return GL_FALSE;            /* finished the pipe */
+}
+
+const struct tnl_pipeline_stage _via_fastrender_stage =
+{
+    "via fast render",
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    via_run_fastrender           /* run */
+};
+
+