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Diffstat (limited to 'src/mesa/drivers/dri/i810/i810render.c')
-rw-r--r--src/mesa/drivers/dri/i810/i810render.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i810/i810render.c b/src/mesa/drivers/dri/i810/i810render.c
new file mode 100644
index 00000000000..a31d54236cb
--- /dev/null
+++ b/src/mesa/drivers/dri/i810/i810render.c
@@ -0,0 +1,173 @@
+/*
+ * Intel i810 DRI driver for Mesa 3.5
+ *
+ * Copyright (C) 1999-2000 Keith Whitwell 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 KEITH WHITWELL 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.
+ *
+ * Author:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+
+/*
+ * 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 "imports.h"
+#include "mtypes.h"
+
+#include "tnl/t_context.h"
+
+#include "i810screen.h"
+#include "i810_dri.h"
+
+#include "i810context.h"
+#include "i810tris.h"
+#include "i810state.h"
+#include "i810vb.h"
+#include "i810ioctl.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 0
+#define HAVE_LINES 1
+#define HAVE_LINE_STRIPS 1
+#define HAVE_TRIANGLES 1
+#define HAVE_TRI_STRIPS 1
+#define HAVE_TRI_STRIP_1 0 /* has it, template can't use it yet */
+#define HAVE_TRI_FANS 1
+#define HAVE_POLYGONS 1
+#define HAVE_QUADS 0
+#define HAVE_QUAD_STRIPS 0
+
+#define HAVE_ELTS 0
+
+
+static GLuint hw_prim[GL_POLYGON+1] = {
+ 0,
+ PR_LINES,
+ 0,
+ PR_LINESTRIP,
+ PR_TRIANGLES,
+ PR_TRISTRIP_0,
+ PR_TRIFAN,
+ 0,
+ 0,
+ PR_POLYGON
+};
+
+static const GLenum reduced_prim[GL_POLYGON+1] = {
+ GL_POINTS,
+ GL_LINES,
+ GL_LINES,
+ GL_LINES,
+ GL_TRIANGLES,
+ GL_TRIANGLES,
+ GL_TRIANGLES,
+ GL_TRIANGLES,
+ GL_TRIANGLES,
+ GL_TRIANGLES
+};
+
+
+
+
+#define LOCAL_VARS i810ContextPtr imesa = I810_CONTEXT(ctx)
+#define INIT( prim ) do { \
+ I810_STATECHANGE(imesa, 0); \
+ i810RasterPrimitive( ctx, reduced_prim[prim], hw_prim[prim] ); \
+} while (0)
+#define GET_CURRENT_VB_MAX_VERTS() \
+ (((int)imesa->vertex_high - (int)imesa->vertex_low) / (imesa->vertex_size*4))
+#define GET_SUBSEQUENT_VB_MAX_VERTS() \
+ (I810_DMA_BUF_SZ-4) / (imesa->vertex_size * 4)
+
+#define ALLOC_VERTS( nr ) \
+ i810AllocDmaLow( imesa, (nr) * imesa->vertex_size * 4)
+#define EMIT_VERTS( ctx, j, nr, buf ) \
+ i810_emit_contiguous_verts(ctx, j, (j)+(nr), buf)
+
+#define FLUSH() I810_FIREVERTICES( imesa )
+
+
+#define TAG(x) i810_##x
+#include "tnl_dd/t_dd_dmatmp.h"
+
+
+/**********************************************************************/
+/* Render pipeline stage */
+/**********************************************************************/
+
+
+static GLboolean i810_run_render( GLcontext *ctx,
+ struct tnl_pipeline_stage *stage )
+{
+ i810ContextPtr imesa = I810_CONTEXT(ctx);
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+ GLuint i;
+
+ /* Don't handle clipping or indexed vertices.
+ */
+ if (imesa->RenderIndex != 0 ||
+ !i810_validate_render( ctx, VB )) {
+ return GL_TRUE;
+ }
+
+ imesa->SetupNewInputs = VERT_BIT_POS;
+
+ tnl->Driver.Render.Start( ctx );
+
+ for (i = 0 ; i < VB->PrimitiveCount ; i++)
+ {
+ GLuint prim = VB->Primitive[i].mode;
+ GLuint start = VB->Primitive[i].start;
+ GLuint length = VB->Primitive[i].count;
+
+ if (!length)
+ continue;
+
+ i810_render_tab_verts[prim & PRIM_MODE_MASK]( ctx, start, start + length,
+ prim );
+ }
+
+ tnl->Driver.Render.Finish( ctx );
+
+ return GL_FALSE; /* finished the pipe */
+}
+
+
+
+const struct tnl_pipeline_stage _i810_render_stage =
+{
+ "i810 render",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ i810_run_render /* run */
+};