R600: initial copy of r300 code

1 files changed, 722 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/r600/r600_swtcl.c b/src/mesa/drivers/dri/r600/r600_swtcl.c
new file mode 100644
index 0000000000..9c8b62465f
--- /dev/null
+++ b/src/mesa/drivers/dri/r600/r600_swtcl.c
@@ -0,0 +1,722 @@
+/**************************************************************************
+
+Copyright (C) 2007 Dave Airlie
+
+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
+on 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
+THE COPYRIGHT OWNER(S) 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.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ *   Dave Airlie <airlied@linux.ie>
+ *   Maciej Cencora <m.cencora@gmail.com>
+ */
+
+#include "tnl/tnl.h"
+#include "tnl/t_pipeline.h"
+
+#include "r600_swtcl.h"
+#include "r600_emit.h"
+#include "r600_tex.h"
+
+#define EMIT_ATTR( ATTR, STYLE )					\
+do {									\
+   rmesa->radeon.swtcl.vertex_attrs[rmesa->radeon.swtcl.vertex_attr_count].attrib = (ATTR);	\
+   rmesa->radeon.swtcl.vertex_attrs[rmesa->radeon.swtcl.vertex_attr_count].format = (STYLE);	\
+   rmesa->radeon.swtcl.vertex_attr_count++;					\
+} while (0)
+
+#define EMIT_PAD( N )							\
+do {									\
+   rmesa->radeon.swtcl.vertex_attrs[rmesa->radeon.swtcl.vertex_attr_count].attrib = 0;		\
+   rmesa->radeon.swtcl.vertex_attrs[rmesa->radeon.swtcl.vertex_attr_count].format = EMIT_PAD;	\
+   rmesa->radeon.swtcl.vertex_attrs[rmesa->radeon.swtcl.vertex_attr_count].offset = (N);		\
+   rmesa->radeon.swtcl.vertex_attr_count++;					\
+} while (0)
+
+#define ADD_ATTR(_attr, _format, _dst_loc, _swizzle, _write_mask) \
+do { \
+	attrs[num_attrs].attr = (_attr); \
+	attrs[num_attrs].format = (_format); \
+	attrs[num_attrs].dst_loc = (_dst_loc); \
+	attrs[num_attrs].swizzle = (_swizzle); \
+	attrs[num_attrs].write_mask = (_write_mask); \
+	++num_attrs; \
+} while (0)
+
+static void r300SwtclVAPSetup(GLcontext *ctx, GLuint InputsRead, GLuint OutputsWritten)
+{
+	r300ContextPtr rmesa = R300_CONTEXT( ctx );
+	TNLcontext *tnl = TNL_CONTEXT(ctx);
+	struct vertex_buffer *VB = &tnl->vb;
+	struct vertex_attribute *attrs = rmesa->swtcl.vert_attrs;
+	int vte = 0;
+	int i, j, reg_count;
+	uint32_t *vir0 = &rmesa->hw.vir[0].cmd[1];
+	uint32_t *vir1 = &rmesa->hw.vir[1].cmd[1];
+
+	for (i = 0; i < R300_VIR_CMDSIZE-1; ++i)
+		vir0[i] = vir1[i] = 0;
+
+	for (i = 0, j = 0; i < rmesa->radeon.swtcl.vertex_attr_count; ++i) {
+		int tmp, data_format;
+		switch (attrs[i].format) {
+			case EMIT_1F:
+				data_format = R300_DATA_TYPE_FLOAT_1;
+				break;
+			case EMIT_2F:
+				data_format = R300_DATA_TYPE_FLOAT_2;
+				break;
+			case EMIT_3F:
+				data_format = R300_DATA_TYPE_FLOAT_3;
+				break;
+			case EMIT_4F:
+				data_format = R300_DATA_TYPE_FLOAT_4;
+				break;
+			case EMIT_4UB_4F_RGBA:
+			case EMIT_4UB_4F_ABGR:
+				data_format = R300_DATA_TYPE_BYTE | R300_NORMALIZE;
+				break;
+			default:
+				fprintf(stderr, "%s: Invalid data format type", __FUNCTION__);
+				_mesa_exit(-1);
+				break;
+		}
+
+		tmp = data_format | (attrs[i].dst_loc << R300_DST_VEC_LOC_SHIFT);
+		if (i % 2 == 0) {
+			vir0[j] = tmp << R300_DATA_TYPE_0_SHIFT;
+			vir1[j] = attrs[i].swizzle | (attrs[i].write_mask << R300_WRITE_ENA_SHIFT);
+		} else {
+			vir0[j] |= tmp << R300_DATA_TYPE_1_SHIFT;
+			vir1[j] |= (attrs[i].swizzle | (attrs[i].write_mask << R300_WRITE_ENA_SHIFT)) << R300_SWIZZLE1_SHIFT;
+			++j;
+		}
+	}
+
+	reg_count = (rmesa->radeon.swtcl.vertex_attr_count + 1) >> 1;
+	if (rmesa->radeon.swtcl.vertex_attr_count % 2 != 0) {
+		vir0[reg_count-1] |= R300_LAST_VEC << R300_DATA_TYPE_0_SHIFT;
+	} else {
+		vir0[reg_count-1] |= R300_LAST_VEC << R300_DATA_TYPE_1_SHIFT;
+	}
+
+	R300_STATECHANGE(rmesa, vir[0]);
+	R300_STATECHANGE(rmesa, vir[1]);
+	R300_STATECHANGE(rmesa, vof);
+	R300_STATECHANGE(rmesa, vte);
+	R300_STATECHANGE(rmesa, vic);
+
+	if (rmesa->radeon.radeonScreen->kernel_mm) {
+		rmesa->hw.vir[0].cmd[0] &= 0xC000FFFF;
+		rmesa->hw.vir[1].cmd[0] &= 0xC000FFFF;
+		rmesa->hw.vir[0].cmd[0] |= (reg_count & 0x3FFF) << 16;
+		rmesa->hw.vir[1].cmd[0] |= (reg_count & 0x3FFF) << 16;
+	} else {
+		((drm_r300_cmd_header_t *) rmesa->hw.vir[0].cmd)->packet0.count = reg_count;
+		((drm_r300_cmd_header_t *) rmesa->hw.vir[1].cmd)->packet0.count = reg_count;
+	}
+
+	rmesa->hw.vic.cmd[R300_VIC_CNTL_0] = r300VAPInputCntl0(ctx, InputsRead);
+	rmesa->hw.vic.cmd[R300_VIC_CNTL_1] = r300VAPInputCntl1(ctx, InputsRead);
+	rmesa->hw.vof.cmd[R300_VOF_CNTL_0] = r300VAPOutputCntl0(ctx, OutputsWritten);
+	rmesa->hw.vof.cmd[R300_VOF_CNTL_1] = r300VAPOutputCntl1(ctx, OutputsWritten);
+
+	vte = rmesa->hw.vte.cmd[1];
+	vte &= ~(R300_VTX_XY_FMT | R300_VTX_Z_FMT | R300_VTX_W0_FMT);
+	/* Important:
+	 */
+	if ( VB->NdcPtr != NULL ) {
+		VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
+		vte |= R300_VTX_XY_FMT | R300_VTX_Z_FMT;
+	}
+	else {
+		VB->AttribPtr[VERT_ATTRIB_POS] = VB->ClipPtr;
+		vte |= R300_VTX_W0_FMT;
+	}
+
+	assert( VB->AttribPtr[VERT_ATTRIB_POS] != NULL );
+
+	rmesa->hw.vte.cmd[1] = vte;
+	rmesa->hw.vte.cmd[2] = rmesa->radeon.swtcl.vertex_size;
+}
+
+
+static void r300SetVertexFormat( GLcontext *ctx )
+{
+	r300ContextPtr rmesa = R300_CONTEXT( ctx );
+	TNLcontext *tnl = TNL_CONTEXT(ctx);
+	struct vertex_buffer *VB = &tnl->vb;
+	int fog_id = -1;
+	GLuint InputsRead = 0;
+	GLuint OutputsWritten = 0;
+	int num_attrs = 0;
+	struct vertex_attribute *attrs = rmesa->swtcl.vert_attrs;
+
+	rmesa->swtcl.coloroffset = rmesa->swtcl.specoffset = 0;
+	rmesa->radeon.swtcl.vertex_attr_count = 0;
+
+	if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_POS)) {
+		InputsRead |= 1 << VERT_ATTRIB_POS;
+		OutputsWritten |= 1 << VERT_RESULT_HPOS;
+		EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F );
+		ADD_ATTR(VERT_ATTRIB_POS, EMIT_4F, SWTCL_OVM_POS, SWIZZLE_XYZW, MASK_XYZW);
+		rmesa->swtcl.coloroffset = 4;
+	}
+
+	if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0)) {
+		InputsRead |= 1 << VERT_ATTRIB_COLOR0;
+		OutputsWritten |= 1 << VERT_RESULT_COL0;
+#if MESA_LITTLE_ENDIAN
+		EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_RGBA );
+		ADD_ATTR(VERT_ATTRIB_COLOR0, EMIT_4UB_4F_RGBA, SWTCL_OVM_COLOR0, SWIZZLE_XYZW, MASK_XYZW);
+#else
+		EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_ABGR );
+		ADD_ATTR(VERT_ATTRIB_COLOR0, EMIT_4UB_4F_ABGR, SWTCL_OVM_COLOR0, SWIZZLE_XYZW, MASK_XYZW);
+#endif
+	}
+
+	if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 )) {
+		GLuint swiz = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ONE);
+		InputsRead |= 1 << VERT_ATTRIB_COLOR1;
+		OutputsWritten |= 1 << VERT_RESULT_COL1;
+#if MESA_LITTLE_ENDIAN
+		EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4UB_4F_RGBA );
+		ADD_ATTR(VERT_ATTRIB_COLOR1, EMIT_4UB_4F_RGBA, SWTCL_OVM_COLOR1, swiz, MASK_XYZW);
+#else
+		EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4UB_4F_ABGR );
+		ADD_ATTR(VERT_ATTRIB_COLOR1, EMIT_4UB_4F_ABGR, SWTCL_OVM_COLOR1, swiz, MASK_XYZW);
+#endif
+		rmesa->swtcl.specoffset = rmesa->swtcl.coloroffset + 1;
+	}
+
+	if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE )) {
+		GLuint swiz = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_ZERO, SWIZZLE_ZERO, SWIZZLE_ZERO);
+		InputsRead |= 1 << VERT_ATTRIB_POINT_SIZE;
+		OutputsWritten |= 1 << VERT_RESULT_PSIZ;
+		EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F );
+		ADD_ATTR(VERT_ATTRIB_POINT_SIZE, EMIT_1F, SWTCL_OVM_POINT_SIZE, swiz, MASK_X);
+	}
+
+	if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_FOG)) {
+		/* find first free tex coord slot */
+		if (RENDERINPUTS_TEST_RANGE(tnl->render_inputs_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX )) {
+			int i;
+			for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+				if (!RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) )) {
+					fog_id = i;
+					break;
+				}
+			}
+		} else {
+			fog_id = 0;
+		}
+
+		if (fog_id == -1) {
+			fprintf(stderr, "\tout of free texcoords to do fog\n");
+			_mesa_exit(-1);
+		}
+
+		InputsRead |= 1 << VERT_ATTRIB_FOG;
+		OutputsWritten |= 1 << VERT_RESULT_FOGC;
+		GLuint swiz = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_ZERO, SWIZZLE_ZERO, SWIZZLE_ZERO);
+		EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1F );
+		ADD_ATTR(VERT_ATTRIB_FOG, EMIT_1F, SWTCL_OVM_TEX(fog_id), swiz, MASK_X);
+	}
+
+	if (RENDERINPUTS_TEST_RANGE(tnl->render_inputs_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX )) {
+		int i;
+		GLuint swiz, mask, format;
+		for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+			if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) )) {
+				switch (VB->TexCoordPtr[i]->size) {
+					case 1:
+					case 2:
+						format = EMIT_2F;
+						swiz = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_ZERO, SWIZZLE_ZERO);
+						mask = MASK_X | MASK_Y;
+						break;
+					case 3:
+						format = EMIT_3F;
+						swiz = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ZERO);
+						mask = MASK_X | MASK_Y | MASK_Z;
+						break;
+					case 4:
+						format = EMIT_4F;
+						swiz = SWIZZLE_XYZW;
+						mask = MASK_XYZW;
+						break;
+					default:
+						continue;
+				}
+				InputsRead |= 1 << (VERT_ATTRIB_TEX0 + i);
+				OutputsWritten |= 1 << (VERT_RESULT_TEX0 + i);
+				EMIT_ATTR(_TNL_ATTRIB_TEX(i), format);
+				ADD_ATTR(VERT_ATTRIB_TEX0 + i, format, SWTCL_OVM_TEX(i), swiz, mask);
+			}
+		}
+	}
+
+	/* RS can't put fragment position on the pixel stack, so stuff it in texcoord if needed */
+	if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_POS) && (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_WPOS)) {
+		int first_free_tex = -1;
+		if (fog_id >= 0) {
+			first_free_tex = fog_id+1;
+		} else {
+			if (RENDERINPUTS_TEST_RANGE(tnl->render_inputs_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX )) {
+				int i;
+				for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+					if (!RENDERINPUTS_TEST(tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) )) {
+						first_free_tex = i;
+						break;
+					}
+				}
+			} else {
+				first_free_tex = 0;
+			}
+		}
+
+		if (first_free_tex == -1) {
+			fprintf(stderr, "\tout of free texcoords to write w pos\n");
+			_mesa_exit(-1);
+		}
+
+		InputsRead |= 1 << (VERT_ATTRIB_TEX0 + first_free_tex);
+		OutputsWritten |= 1 << (VERT_RESULT_TEX0 + first_free_tex);
+		EMIT_ATTR( _TNL_ATTRIB_TEX(first_free_tex), EMIT_4F );
+		ADD_ATTR(VERT_ATTRIB_TEX0 + first_free_tex, EMIT_4F, SWTCL_OVM_TEX(first_free_tex), SWIZZLE_XYZW, MASK_XYZW);
+	}
+
+	R300_NEWPRIM(rmesa);
+	r300SwtclVAPSetup(ctx, InputsRead, OutputsWritten);
+
+	rmesa->radeon.swtcl.vertex_size =
+		_tnl_install_attrs( ctx,
+				    rmesa->radeon.swtcl.vertex_attrs,
+				    rmesa->radeon.swtcl.vertex_attr_count,
+				    NULL, 0 );
+
+	rmesa->radeon.swtcl.vertex_size /= 4;
+
+	RENDERINPUTS_COPY(rmesa->state.render_inputs_bitset, tnl->render_inputs_bitset);
+}
+
+
+static GLuint reduced_prim[] = {
+	GL_POINTS,
+	GL_LINES,
+	GL_LINES,
+	GL_LINES,
+	GL_TRIANGLES,
+	GL_TRIANGLES,
+	GL_TRIANGLES,
+	GL_TRIANGLES,
+	GL_TRIANGLES,
+	GL_TRIANGLES,
+};
+
+static void r300RasterPrimitive( GLcontext *ctx, GLuint prim );
+static void r300RenderPrimitive( GLcontext *ctx, GLenum prim );
+
+/***********************************************************************
+ *                    Emit primitives as inline vertices               *
+ ***********************************************************************/
+
+
+#define HAVE_POINTS      1
+#define HAVE_LINES       1
+#define HAVE_LINE_STRIPS 1
+#define HAVE_TRIANGLES   1
+#define HAVE_TRI_STRIPS  1
+#define HAVE_TRI_STRIP_1 0
+#define HAVE_TRI_FANS    1
+#define HAVE_QUADS       0
+#define HAVE_QUAD_STRIPS 0
+#define HAVE_POLYGONS    1
+#define HAVE_ELTS        1
+
+#undef LOCAL_VARS
+#undef ALLOC_VERTS
+#define CTX_ARG r300ContextPtr rmesa
+#define GET_VERTEX_DWORDS() rmesa->radeon.swtcl.vertex_size
+#define ALLOC_VERTS( n, size ) rcommonAllocDmaLowVerts( &rmesa->radeon, n, size * 4 )
+#define LOCAL_VARS						\
+   r300ContextPtr rmesa = R300_CONTEXT(ctx);		\
+   const char *r300verts = (char *)rmesa->radeon.swtcl.verts;
+#define VERT(x) (r300Vertex *)(r300verts + ((x) * vertsize * sizeof(int)))
+#define VERTEX r300Vertex
+#undef TAG
+#define TAG(x) r300_##x
+#include "tnl_dd/t_dd_triemit.h"
+
+
+
+/***********************************************************************
+ *          Macros for t_dd_tritmp.h to draw basic primitives          *
+ ***********************************************************************/
+
+#define QUAD( a, b, c, d ) r300_quad( rmesa, a, b, c, d )
+#define TRI( a, b, c )     r300_triangle( rmesa, a, b, c )
+#define LINE( a, b )       r300_line( rmesa, a, b )
+#define POINT( a )         r300_point( rmesa, a )
+
+/***********************************************************************
+ *              Build render functions from dd templates               *
+ ***********************************************************************/
+
+#define R300_TWOSIDE_BIT	0x01
+#define R300_UNFILLED_BIT	0x02
+#define R300_MAX_TRIFUNC	0x04
+
+static struct {
+   tnl_points_func	        points;
+   tnl_line_func		line;
+   tnl_triangle_func	triangle;
+   tnl_quad_func		quad;
+} rast_tab[R300_MAX_TRIFUNC];
+
+#define DO_FALLBACK  0
+#define DO_UNFILLED (IND & R300_UNFILLED_BIT)
+#define DO_TWOSIDE  (IND & R300_TWOSIDE_BIT)
+#define DO_FLAT      0
+#define DO_OFFSET     0
+#define DO_TRI       1
+#define DO_QUAD      1
+#define DO_LINE      1
+#define DO_POINTS    1
+#define DO_FULL_QUAD 1
+
+#define HAVE_RGBA   1
+#define HAVE_SPEC   1
+#define HAVE_BACK_COLORS  0
+#define HAVE_HW_FLATSHADE 1
+#define TAB rast_tab
+
+#define DEPTH_SCALE 1.0
+#define UNFILLED_TRI unfilled_tri
+#define UNFILLED_QUAD unfilled_quad
+#define VERT_X(_v) _v->v.x
+#define VERT_Y(_v) _v->v.y
+#define VERT_Z(_v) _v->v.z
+#define AREA_IS_CCW( a ) (a < 0)
+#define GET_VERTEX(e) (rmesa->radeon.swtcl.verts + (e*rmesa->radeon.swtcl.vertex_size*sizeof(int)))
+
+#define VERT_SET_RGBA( v, c ) \
+do { \
+   r300_color_t *color = (r300_color_t *)&((v)->ui[coloroffset]); \
+   UNCLAMPED_FLOAT_TO_UBYTE(color->red, (c)[0]); \
+   UNCLAMPED_FLOAT_TO_UBYTE(color->green, (c)[1]); \
+   UNCLAMPED_FLOAT_TO_UBYTE(color->blue, (c)[2]); \
+   UNCLAMPED_FLOAT_TO_UBYTE(color->alpha, (c)[3]); \
+} while (0)
+
+#define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset]
+
+#define VERT_SET_SPEC( v0, c ) \
+do { \
+   if (specoffset) { \
+   UNCLAMPED_FLOAT_TO_UBYTE(v0->v.specular.red, (c)[0]); \
+   UNCLAMPED_FLOAT_TO_UBYTE(v0->v.specular.green, (c)[1]); \
+   UNCLAMPED_FLOAT_TO_UBYTE(v0->v.specular.blue, (c)[2]); \
+   } \
+} while (0)
+
+#define VERT_COPY_SPEC( v0, v1 ) \
+do { \
+   if (specoffset) { \
+       v0->v.specular.red = v1->v.specular.red; \
+       v0->v.specular.green = v1->v.specular.green; \
+       v0->v.specular.blue = v1->v.specular.blue; \
+   } \
+} while (0)
+
+#define VERT_SAVE_RGBA( idx )    color[idx] = v[idx]->ui[coloroffset]
+#define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx]
+#define VERT_SAVE_SPEC( idx )    if (specoffset) spec[idx] = v[idx]->ui[specoffset]
+#define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
+
+#undef LOCAL_VARS
+#undef TAG
+#undef INIT
+
+#define LOCAL_VARS(n)							\
+   r300ContextPtr rmesa = R300_CONTEXT(ctx);			\
+   GLuint color[n] = { 0, }, spec[n] = { 0, };						\
+   GLuint coloroffset = rmesa->swtcl.coloroffset;	\
+   GLuint specoffset = rmesa->swtcl.specoffset;			\
+   (void) color; (void) spec; (void) coloroffset; (void) specoffset;
+
+/***********************************************************************
+ *                Helpers for rendering unfilled primitives            *
+ ***********************************************************************/
+
+#define RASTERIZE(x) r300RasterPrimitive( ctx, reduced_prim[x] )
+#define RENDER_PRIMITIVE rmesa->radeon.swtcl.render_primitive
+#undef TAG
+#define TAG(x) x
+#include "tnl_dd/t_dd_unfilled.h"
+#undef IND
+
+
+/***********************************************************************
+ *                      Generate GL render functions                   *
+ ***********************************************************************/
+
+
+#define IND (0)
+#define TAG(x) x
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (R300_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (R300_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (R300_TWOSIDE_BIT|R300_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+
+
+static void init_rast_tab( void )
+{
+   init();
+   init_twoside();
+   init_unfilled();
+   init_twoside_unfilled();
+}
+
+/**********************************************************************/
+/*               Render unclipped begin/end objects                   */
+/**********************************************************************/
+
+#define RENDER_POINTS( start, count )		\
+   for ( ; start < count ; start++)		\
+      r300_point( rmesa, VERT(start) )
+#define RENDER_LINE( v0, v1 ) \
+   r300_line( rmesa, VERT(v0), VERT(v1) )
+#define RENDER_TRI( v0, v1, v2 )  \
+   r300_triangle( rmesa, VERT(v0), VERT(v1), VERT(v2) )
+#define RENDER_QUAD( v0, v1, v2, v3 ) \
+   r300_quad( rmesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
+#define INIT(x) do {					\
+   r300RenderPrimitive( ctx, x );			\
+} while (0)
+#undef LOCAL_VARS
+#define LOCAL_VARS						\
+   r300ContextPtr rmesa = R300_CONTEXT(ctx);		\
+   const GLuint vertsize = rmesa->radeon.swtcl.vertex_size;		\
+   const char *r300verts = (char *)rmesa->radeon.swtcl.verts;		\
+   const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts;	\
+   const GLboolean stipple = ctx->Line.StippleFlag;		\
+   (void) elt; (void) stipple;
+#define RESET_STIPPLE	//if ( stipple ) r200ResetLineStipple( ctx );
+#define RESET_OCCLUSION
+#define PRESERVE_VB_DEFS
+#define ELT(x) (x)
+#define TAG(x) r300_##x##_verts
+#include "tnl/t_vb_rendertmp.h"
+#undef ELT
+#undef TAG
+#define TAG(x) r300_##x##_elts
+#define ELT(x) elt[x]
+#include "tnl/t_vb_rendertmp.h"
+
+
+
+
+/**********************************************************************/
+/*                    Choose render functions                         */
+/**********************************************************************/
+static void r300ChooseRenderState( GLcontext *ctx )
+{
+	TNLcontext *tnl = TNL_CONTEXT(ctx);
+	r300ContextPtr rmesa = R300_CONTEXT(ctx);
+	GLuint index = 0;
+	GLuint flags = ctx->_TriangleCaps;
+
+	if (flags & DD_TRI_LIGHT_TWOSIDE) index |= R300_TWOSIDE_BIT;
+	if (flags & DD_TRI_UNFILLED)      index |= R300_UNFILLED_BIT;
+
+	if (index != rmesa->radeon.swtcl.RenderIndex) {
+		tnl->Driver.Render.Points = rast_tab[index].points;
+		tnl->Driver.Render.Line = rast_tab[index].line;
+		tnl->Driver.Render.ClippedLine = rast_tab[index].line;
+		tnl->Driver.Render.Triangle = rast_tab[index].triangle;
+		tnl->Driver.Render.Quad = rast_tab[index].quad;
+
+		if (index == 0) {
+			tnl->Driver.Render.PrimTabVerts = r300_render_tab_verts;
+			tnl->Driver.Render.PrimTabElts = r300_render_tab_elts;
+			tnl->Driver.Render.ClippedPolygon = r300_fast_clipped_poly;
+		} else {
+			tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+			tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+			tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon;
+		}
+
+		rmesa->radeon.swtcl.RenderIndex = index;
+	}
+}
+
+
+static void r300RenderStart(GLcontext *ctx)
+{
+	r300ContextPtr rmesa = R300_CONTEXT( ctx );
+
+	r300ChooseRenderState(ctx);
+	r300SetVertexFormat(ctx);
+
+	r300ValidateBuffers(ctx);
+
+	r300UpdateShaders(rmesa);
+	r300UpdateShaderStates(rmesa);
+
+	r300EmitCacheFlush(rmesa);
+
+	/* investigate if we can put back flush optimisation if needed */
+	if (rmesa->radeon.dma.flush != NULL) {
+		rmesa->radeon.dma.flush(ctx);
+	}
+}
+
+static void r300RenderFinish(GLcontext *ctx)
+{
+}
+
+static void r300RasterPrimitive( GLcontext *ctx, GLuint hwprim )
+{
+	r300ContextPtr rmesa = R300_CONTEXT(ctx);
+
+	if (rmesa->radeon.swtcl.hw_primitive != hwprim) {
+		R300_NEWPRIM( rmesa );
+		rmesa->radeon.swtcl.hw_primitive = hwprim;
+	}
+}
+
+static void r300RenderPrimitive(GLcontext *ctx, GLenum prim)
+{
+
+	r300ContextPtr rmesa = R300_CONTEXT(ctx);
+	rmesa->radeon.swtcl.render_primitive = prim;
+
+	if ((prim == GL_TRIANGLES) && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
+		return;
+
+	r300RasterPrimitive( ctx, reduced_prim[prim] );
+}
+
+static void r300ResetLineStipple(GLcontext *ctx)
+{
+}
+
+void r300InitSwtcl(GLcontext *ctx)
+{
+	TNLcontext *tnl = TNL_CONTEXT(ctx);
+	r300ContextPtr rmesa = R300_CONTEXT(ctx);
+	static int firsttime = 1;
+
+	if (firsttime) {
+		init_rast_tab();
+		firsttime = 0;
+	}
+
+	tnl->Driver.Render.Start = r300RenderStart;
+	tnl->Driver.Render.Finish = r300RenderFinish;
+	tnl->Driver.Render.PrimitiveNotify = r300RenderPrimitive;
+	tnl->Driver.Render.ResetLineStipple = r300ResetLineStipple;
+	tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
+	tnl->Driver.Render.CopyPV = _tnl_copy_pv;
+	tnl->Driver.Render.Interp = _tnl_interp;
+
+	/* FIXME: what are these numbers? */
+	_tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12,
+			    48 * sizeof(GLfloat) );
+
+	rmesa->radeon.swtcl.verts = (GLubyte *)tnl->clipspace.vertex_buf;
+	rmesa->radeon.swtcl.RenderIndex = ~0;
+	rmesa->radeon.swtcl.render_primitive = GL_TRIANGLES;
+	rmesa->radeon.swtcl.hw_primitive = 0;
+
+	_tnl_invalidate_vertex_state( ctx, ~0 );
+	_tnl_invalidate_vertices( ctx, ~0 );
+
+	_tnl_need_projected_coords( ctx, GL_FALSE );
+	r300ChooseRenderState(ctx);
+}
+
+void r300DestroySwtcl(GLcontext *ctx)
+{
+}
+
+static void r300EmitVertexAOS(r300ContextPtr rmesa, GLuint vertex_size, struct radeon_bo *bo, GLuint offset)
+{
+	BATCH_LOCALS(&rmesa->radeon);
+
+	if (RADEON_DEBUG & DEBUG_VERTS)
+		fprintf(stderr, "%s:  vertex_size %d, offset 0x%x \n",
+			__FUNCTION__, vertex_size, offset);
+
+	BEGIN_BATCH(7);
+	OUT_BATCH_PACKET3(R300_PACKET3_3D_LOAD_VBPNTR, 2);
+	OUT_BATCH(1);
+	OUT_BATCH(vertex_size | (vertex_size << 8));
+	OUT_BATCH_RELOC(offset, bo, offset, RADEON_GEM_DOMAIN_GTT, 0, 0);
+	END_BATCH();
+}
+
+static void r300EmitVbufPrim(r300ContextPtr rmesa, GLuint primitive, GLuint vertex_nr)
+{
+	BATCH_LOCALS(&rmesa->radeon);
+	int type, num_verts;
+
+	type = r300PrimitiveType(rmesa, primitive);
+	num_verts = r300NumVerts(rmesa, vertex_nr, primitive);
+
+	BEGIN_BATCH(3);
+	OUT_BATCH_PACKET3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
+	OUT_BATCH(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (num_verts << 16) | type);
+	END_BATCH();
+}
+
+void r300_swtcl_flush(GLcontext *ctx, uint32_t current_offset)
+{
+	r300ContextPtr rmesa = R300_CONTEXT(ctx);
+
+	rcommonEnsureCmdBufSpace(&rmesa->radeon,
+			   rmesa->radeon.hw.max_state_size + (12*sizeof(int)),
+			   __FUNCTION__);
+	radeonEmitState(&rmesa->radeon);
+	r300EmitVertexAOS(rmesa,
+			rmesa->radeon.swtcl.vertex_size,
+			rmesa->radeon.dma.current,
+			current_offset);
+
+	r300EmitVbufPrim(rmesa,
+		   rmesa->radeon.swtcl.hw_primitive,
+		   rmesa->radeon.swtcl.numverts);
+	r300EmitCacheFlush(rmesa);
+	COMMIT_BATCH();
+}