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-rw-r--r--src/mesa/drivers/dri/sis/sis_tris.c954
1 files changed, 954 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/sis/sis_tris.c b/src/mesa/drivers/dri/sis/sis_tris.c
new file mode 100644
index 0000000000..d76431f41d
--- /dev/null
+++ b/src/mesa/drivers/dri/sis/sis_tris.c
@@ -0,0 +1,954 @@
+/* $XFree86*/ /* -*- c-basic-offset: 3 -*- */
+/**************************************************************************
+
+Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
+Copyright 2003 Eric Anholt
+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
+ATI, PRECISION INSIGHT AND/OR THEIR 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:
+ * Sung-Ching Lin <sclin@sis.com.tw>
+ * Eric Anholt <anholt@FreeBSD.org>
+ */
+
+#include "glheader.h"
+#include "mtypes.h"
+#include "colormac.h"
+#include "macros.h"
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+
+#include "sis_tris.h"
+#include "sis_state.h"
+#include "sis_vb.h"
+#include "sis_lock.h"
+
+static const GLuint hw_prim[GL_POLYGON+1] = {
+ OP_3D_POINT_DRAW, /* GL_POINTS */
+ OP_3D_LINE_DRAW, /* GL_LINES */
+ OP_3D_LINE_DRAW, /* GL_LINE_LOOP */
+ OP_3D_LINE_DRAW, /* GL_LINE_STRIP */
+ OP_3D_TRIANGLE_DRAW, /* GL_TRIANGLES */
+ OP_3D_TRIANGLE_DRAW, /* GL_TRIANGLE_STRIP */
+ OP_3D_TRIANGLE_DRAW, /* GL_TRIANGLE_FAN */
+ OP_3D_TRIANGLE_DRAW, /* GL_QUADS */
+ OP_3D_TRIANGLE_DRAW, /* GL_QUAD_STRIP */
+ OP_3D_TRIANGLE_DRAW /* GL_POLYGON */
+};
+
+static const GLuint hw_prim_mmio_fire[OP_3D_TRIANGLE_DRAW+1] = {
+ OP_3D_FIRE_TSARGBa,
+ OP_3D_FIRE_TSARGBb,
+ OP_3D_FIRE_TSARGBc
+};
+
+static const GLuint hw_prim_mmio_shade[OP_3D_TRIANGLE_DRAW+1] = {
+ SHADE_FLAT_VertexA,
+ SHADE_FLAT_VertexB,
+ SHADE_FLAT_VertexC
+};
+
+static const GLuint hw_prim_agp_type[OP_3D_TRIANGLE_DRAW+1] = {
+ MASK_PsPointList,
+ MASK_PsLineList,
+ MASK_PsTriangleList
+};
+
+static const GLuint hw_prim_agp_shade[OP_3D_TRIANGLE_DRAW+1] = {
+ MASK_PsShadingFlatA,
+ MASK_PsShadingFlatB,
+ MASK_PsShadingFlatC
+};
+
+static void sisRasterPrimitive( GLcontext *ctx, GLuint hwprim );
+static void sisRenderPrimitive( GLcontext *ctx, GLenum prim );
+static void sisMakeRoomAGP( sisContextPtr smesa, GLint num );
+static void sisUpdateAGP( sisContextPtr smesa );
+static void sisFireVertsAGP( sisContextPtr smesa );
+
+static float *AGP_StartPtr;
+static float *AGP_WritePtr; /* Current write position */
+static float *AGP_ReadPtr; /* Last known engine readposition */
+static long AGP_SpaceLeft; /* Last known engine readposition */
+
+/***********************************************************************
+ * Emit primitives as inline vertices *
+ ***********************************************************************/
+
+/* Future optimizations:
+ *
+ * The previous code only emitted W when fog or textures were enabled.
+ */
+
+#define SIS_MMIO_WRITE_VERTEX(_v, i, lastvert) \
+do { \
+ MMIOBase[(REG_3D_TSXa+(i)*0x30)/4] = _v->v.x; \
+ MMIOBase[(REG_3D_TSYa+(i)*0x30)/4] = _v->v.y; \
+ MMIOBase[(REG_3D_TSZa+(i)*0x30)/4] = _v->v.z; \
+ MMIOBase[(REG_3D_TSWGa+(i)*0x30)/4] = _v->v.w; \
+ /*((GLint *) MMIOBase)[(REG_3D_TSFSa+(i)*0x30)/4] = _v->ui[5];*/ \
+ if (SIS_STATES & SIS_VERT_TEX0) { \
+ MMIOBase[(REG_3D_TSUAa+(i)*0x30)/4] = _v->v.u0; \
+ MMIOBase[(REG_3D_TSVAa+(i)*0x30)/4] = _v->v.v0; \
+ } \
+ if (SIS_STATES & SIS_VERT_TEX1) { \
+ MMIOBase[(REG_3D_TSUBa+(i)*0x30)/4] = _v->v.u1; \
+ MMIOBase[(REG_3D_TSVBa+(i)*0x30)/4] = _v->v.v1; \
+ } \
+ /*MMIOBase[(REG_3D_TSUCa+(i)*0x30)/4] = _v->v.u2; \
+ MMIOBase[(REG_3D_TSVCa+(i)*0x30)/4] = _v->v.v2;*/ \
+ /* the ARGB write of the last vertex of the primitive fires the 3d engine*/ \
+ if (lastvert || (SIS_STATES & SIS_VERT_SMOOTH)) \
+ ((GLint *) MMIOBase)[(REG_3D_TSARGBa+(i)*0x30)/4] = _v->ui[4]; \
+} while (0);
+
+#define SIS_AGP_WRITE_VERTEX(_v) \
+do { \
+ AGP_WritePtr[0] = _v->v.x; \
+ AGP_WritePtr[1] = _v->v.y; \
+ AGP_WritePtr[2] = _v->v.z; \
+ AGP_WritePtr[3] = _v->v.w; \
+ ((GLint *)AGP_WritePtr)[4] = _v->ui[4]; \
+ AGP_WritePtr += 5; \
+ if (SIS_STATES & SIS_VERT_TEX0) { \
+ AGP_WritePtr[0] = _v->v.u0; \
+ AGP_WritePtr[1] = _v->v.v0; \
+ AGP_WritePtr += 2; \
+ } \
+ if (SIS_STATES & SIS_VERT_TEX1) { \
+ AGP_WritePtr[0] = _v->v.u1; \
+ AGP_WritePtr[1] = _v->v.v1; \
+ AGP_WritePtr += 2; \
+ } \
+} while(0)
+
+#define MMIO_VERT_REG_COUNT 10
+
+#define SIS_VERT_SMOOTH 0x01
+#define SIS_VERT_TEX0 0x02
+#define SIS_VERT_TEX1 0x04
+
+static sis_quad_func sis_quad_func_agp[8];
+static sis_tri_func sis_tri_func_agp[8];
+static sis_line_func sis_line_func_agp[8];
+static sis_point_func sis_point_func_agp[8];
+static sis_quad_func sis_quad_func_mmio[8];
+static sis_tri_func sis_tri_func_mmio[8];
+static sis_line_func sis_line_func_mmio[8];
+static sis_point_func sis_point_func_mmio[8];
+
+/* XXX: These definitions look questionable */
+#define USE_XYZ MASK_PsVertex_HAS_RHW
+#define USE_W MASK_PsVertex_HAS_NORMALXYZ
+#define USE_RGB MASK_PsVertex_HAS_SPECULAR
+#define USE_UV1 MASK_PsVertex_HAS_UVSet2
+#define USE_UV2 MASK_PsVertex_HAS_UVSet3
+
+static GLint AGPParsingValues[8] = {
+ (5 << 28) | USE_XYZ | USE_W | USE_RGB,
+ (5 << 28) | USE_XYZ | USE_W | USE_RGB,
+ (7 << 28) | USE_XYZ | USE_W | USE_RGB | USE_UV1,
+ (7 << 28) | USE_XYZ | USE_W | USE_RGB | USE_UV1,
+ (7 << 28) | USE_XYZ | USE_W | USE_RGB | USE_UV2,
+ (7 << 28) | USE_XYZ | USE_W | USE_RGB | USE_UV2,
+ (9 << 28) | USE_XYZ | USE_W | USE_RGB | USE_UV1 | USE_UV2,
+ (9 << 28) | USE_XYZ | USE_W | USE_RGB | USE_UV1 | USE_UV2,
+};
+
+#define SIS_STATES (0)
+#define TAG(x) x##_none
+#include "sis_tritmp.h"
+
+#define SIS_STATES (SIS_VERT_SMOOTH)
+#define TAG(x) x##_s
+#include "sis_tritmp.h"
+
+#define SIS_STATES (SIS_VERT_TEX0)
+#define TAG(x) x##_t0
+#include "sis_tritmp.h"
+
+#define SIS_STATES (SIS_VERT_SMOOTH | SIS_VERT_TEX0)
+#define TAG(x) x##_st0
+#include "sis_tritmp.h"
+
+#define SIS_STATES (SIS_VERT_TEX1)
+#define TAG(x) x##_t1
+#include "sis_tritmp.h"
+
+#define SIS_STATES (SIS_VERT_SMOOTH | SIS_VERT_TEX1)
+#define TAG(x) x##_st1
+#include "sis_tritmp.h"
+
+#define SIS_STATES (SIS_VERT_TEX0 | SIS_VERT_TEX1)
+#define TAG(x) x##_t0t1
+#include "sis_tritmp.h"
+
+#define SIS_STATES (SIS_VERT_SMOOTH | SIS_VERT_TEX0 | SIS_VERT_TEX1)
+#define TAG(x) x##_st0t1
+#include "sis_tritmp.h"
+
+/***********************************************************************
+ * Macros for t_dd_tritmp.h to draw basic primitives *
+ ***********************************************************************/
+
+#define POINT( v0 ) smesa->draw_point( smesa, v0 )
+#define LINE( v0, v1 ) smesa->draw_line( smesa, v0, v1 )
+#define TRI( a, b, c ) smesa->draw_tri( smesa, a, b, c )
+#define QUAD( a, b, c, d ) smesa->draw_quad( smesa, a, b, c, d )
+
+/***********************************************************************
+ * Build render functions from dd templates *
+ ***********************************************************************/
+
+#define SIS_OFFSET_BIT 0x01
+#define SIS_TWOSIDE_BIT 0x02
+#define SIS_UNFILLED_BIT 0x04
+#define SIS_FALLBACK_BIT 0x08
+#define SIS_MAX_TRIFUNC 0x10
+
+
+static struct {
+ points_func points;
+ line_func line;
+ triangle_func triangle;
+ quad_func quad;
+} rast_tab[SIS_MAX_TRIFUNC];
+
+
+#define DO_FALLBACK (IND & SIS_FALLBACK_BIT)
+#define DO_OFFSET (IND & SIS_OFFSET_BIT)
+#define DO_UNFILLED (IND & SIS_UNFILLED_BIT)
+#define DO_TWOSIDE (IND & SIS_TWOSIDE_BIT)
+#define DO_FLAT 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 VERTEX sisVertex
+#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) (smesa->verts + (e << smesa->vertex_stride_shift))
+
+#define VERT_SET_RGBA( v, c ) \
+ do { \
+ sis_color_t *vc = (sis_color_t *)&(v)->ui[coloroffset]; \
+ vc->blue = (c)[2]; \
+ vc->green = (c)[1]; \
+ vc->red = (c)[0]; \
+ vc->alpha = (c)[3]; \
+ } while (0)
+#define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset]
+#define VERT_SAVE_RGBA( idx ) color[idx] = v[idx]->ui[coloroffset]
+#define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx]
+
+#define VERT_SET_SPEC( v0, c ) \
+ if (havespec) { \
+ (v0)->v.specular.red = (c)[0]; \
+ (v0)->v.specular.green = (c)[1]; \
+ (v0)->v.specular.blue = (c)[2]; \
+ }
+#define VERT_COPY_SPEC( v0, v1 ) \
+ if (havespec) { \
+ (v0)->v.specular.red = v1->v.specular.red; \
+ (v0)->v.specular.green = v1->v.specular.green; \
+ (v0)->v.specular.blue = v1->v.specular.blue; \
+ }
+
+#define VERT_SAVE_SPEC( idx ) if (havespec) spec[idx] = v[idx]->ui[5]
+#define VERT_RESTORE_SPEC( idx ) if (havespec) v[idx]->ui[5] = spec[idx]
+
+#define LOCAL_VARS(n) \
+ sisContextPtr smesa = SIS_CONTEXT(ctx); \
+ GLuint color[n], spec[n]; \
+ GLuint coloroffset = (smesa->vertex_size == 4 ? 3 : 4); \
+ GLboolean havespec = (smesa->vertex_size == 4 ? 0 : 1); \
+ (void) color; (void) spec; (void) coloroffset; (void) havespec;
+
+/***********************************************************************
+ * Helpers for rendering unfilled primitives *
+ ***********************************************************************/
+
+#define RASTERIZE(x) if (smesa->hw_primitive != hw_prim[x]) \
+ sisRasterPrimitive( ctx, hw_prim[x] )
+#define RENDER_PRIMITIVE smesa->render_primitive
+#define IND SIS_FALLBACK_BIT
+#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 (SIS_OFFSET_BIT)
+#define TAG(x) x##_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT | SIS_OFFSET_BIT)
+#define TAG(x) x##_twoside_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_OFFSET_BIT | SIS_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT | SIS_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT | SIS_OFFSET_BIT | SIS_UNFILLED_BIT)
+#define TAG(x) x##_twoside_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_FALLBACK_BIT)
+#define TAG(x) x##_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_OFFSET_BIT | SIS_FALLBACK_BIT)
+#define TAG(x) x##_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT | SIS_FALLBACK_BIT)
+#define TAG(x) x##_twoside_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT | SIS_OFFSET_BIT | SIS_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_UNFILLED_BIT | SIS_FALLBACK_BIT)
+#define TAG(x) x##_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_OFFSET_BIT | SIS_UNFILLED_BIT | SIS_FALLBACK_BIT)
+#define TAG(x) x##_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT | SIS_UNFILLED_BIT | SIS_FALLBACK_BIT)
+#define TAG(x) x##_twoside_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SIS_TWOSIDE_BIT | SIS_OFFSET_BIT | SIS_UNFILLED_BIT | \
+ SIS_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+
+static void init_rast_tab( void )
+{
+ init();
+ init_offset();
+ init_twoside();
+ init_twoside_offset();
+ init_unfilled();
+ init_offset_unfilled();
+ init_twoside_unfilled();
+ init_twoside_offset_unfilled();
+ init_fallback();
+ init_offset_fallback();
+ init_twoside_fallback();
+ init_twoside_offset_fallback();
+ init_unfilled_fallback();
+ init_offset_unfilled_fallback();
+ init_twoside_unfilled_fallback();
+ init_twoside_offset_unfilled_fallback();
+}
+
+
+
+/***********************************************************************
+ * Rasterization fallback helpers *
+ ***********************************************************************/
+
+
+/* This code is hit only when a mix of accelerated and unaccelerated
+ * primitives are being drawn, and only for the unaccelerated
+ * primitives.
+ */
+static void
+sis_fallback_quad( sisContextPtr smesa,
+ sisVertex *v0,
+ sisVertex *v1,
+ sisVertex *v2,
+ sisVertex *v3 )
+{
+ GLcontext *ctx = smesa->glCtx;
+ SWvertex v[4];
+ sis_translate_vertex( ctx, v0, &v[0] );
+ sis_translate_vertex( ctx, v1, &v[1] );
+ sis_translate_vertex( ctx, v2, &v[2] );
+ sis_translate_vertex( ctx, v3, &v[3] );
+ _swrast_Triangle( ctx, &v[0], &v[1], &v[3] );
+ _swrast_Triangle( ctx, &v[1], &v[2], &v[3] );
+}
+
+static void
+sis_fallback_tri( sisContextPtr smesa,
+ sisVertex *v0,
+ sisVertex *v1,
+ sisVertex *v2 )
+{
+ GLcontext *ctx = smesa->glCtx;
+ SWvertex v[3];
+ sis_translate_vertex( ctx, v0, &v[0] );
+ sis_translate_vertex( ctx, v1, &v[1] );
+ sis_translate_vertex( ctx, v2, &v[2] );
+ _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
+}
+
+
+static void
+sis_fallback_line( sisContextPtr smesa,
+ sisVertex *v0,
+ sisVertex *v1 )
+{
+ GLcontext *ctx = smesa->glCtx;
+ SWvertex v[2];
+ sis_translate_vertex( ctx, v0, &v[0] );
+ sis_translate_vertex( ctx, v1, &v[1] );
+ _swrast_Line( ctx, &v[0], &v[1] );
+}
+
+
+static void
+sis_fallback_point( sisContextPtr smesa,
+ sisVertex *v0 )
+{
+ GLcontext *ctx = smesa->glCtx;
+ SWvertex v[1];
+ sis_translate_vertex( ctx, v0, &v[0] );
+ _swrast_Point( ctx, &v[0] );
+}
+
+
+
+/**********************************************************************/
+/* Render unclipped begin/end objects */
+/**********************************************************************/
+
+#define VERT(x) (sisVertex *)(sisverts + (x << shift))
+#define RENDER_POINTS( start, count ) \
+ for ( ; start < count ; start++) \
+ smesa->draw_point( smesa, VERT(start) )
+#define RENDER_LINE( v0, v1 ) smesa->draw_line( smesa, VERT(v0), VERT(v1) )
+#define RENDER_TRI( v0, v1, v2 ) smesa->draw_tri( smesa, VERT(v0), VERT(v1), \
+ VERT(v2) )
+#define RENDER_QUAD( v0, v1, v2, v3 ) smesa->draw_quad( smesa, VERT(v0), \
+ VERT(v1), VERT(v2), VERT(v3))
+#define INIT(x) sisRenderPrimitive( ctx, x )
+#undef LOCAL_VARS
+#define LOCAL_VARS \
+ sisContextPtr smesa = SIS_CONTEXT(ctx); \
+ const GLuint shift = smesa->vertex_stride_shift; \
+ const char *sisverts = (char *)smesa->verts; \
+ const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
+ (void) elt;
+#define RESET_STIPPLE
+#define RESET_OCCLUSION
+#define PRESERVE_VB_DEFS
+#define ELT(x) (x)
+#define TAG(x) sis_##x##_verts
+#include "tnl/t_vb_rendertmp.h"
+#undef ELT
+#undef TAG
+#define TAG(x) sis_##x##_elts
+#define ELT(x) elt[x]
+#include "tnl/t_vb_rendertmp.h"
+
+
+/**********************************************************************/
+/* Render clipped primitives */
+/**********************************************************************/
+
+static void sisRenderClippedPoly( GLcontext *ctx, const GLuint *elts, GLuint n )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+
+ /* Render the new vertices as an unclipped polygon.
+ */
+ {
+ GLuint *tmp = VB->Elts;
+ VB->Elts = (GLuint *)elts;
+ tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, PRIM_BEGIN|PRIM_END );
+ VB->Elts = tmp;
+ }
+}
+
+static void sisRenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl->Driver.Render.Line( ctx, ii, jj );
+}
+
+#if 0
+static void sisFastRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
+ GLuint n )
+{
+ sisContextPtr smesa = SIS_CONTEXT( ctx );
+ GLuint vertsize = smesa->vertex_size;
+ GLuint *vb = r128AllocDmaLow( rmesa, (n-2) * 3 * 4 * vertsize );
+ GLubyte *sisverts = (GLubyte *)smesa->verts;
+ const GLuint shift = smesa->vertex_stride_shift;
+ const GLuint *start = (const GLuint *)VERT(elts[0]);
+ int i,j;
+
+ smesa->num_verts += (n-2) * 3;
+
+ for (i = 2 ; i < n ; i++) {
+ COPY_DWORDS( j, vb, vertsize, (sisVertexPtr) VERT(elts[i-1]) );
+ COPY_DWORDS( j, vb, vertsize, (sisVertexPtr) VERT(elts[i]) );
+ COPY_DWORDS( j, vb, vertsize, (sisVertexPtr) start );
+ }
+}
+#endif
+
+
+
+
+/**********************************************************************/
+/* Choose render functions */
+/**********************************************************************/
+
+#define _SIS_NEW_RENDER_STATE (_DD_NEW_LINE_STIPPLE | \
+ _DD_NEW_LINE_SMOOTH | \
+ _DD_NEW_POINT_SMOOTH | \
+ _DD_NEW_TRI_SMOOTH | \
+ _DD_NEW_TRI_UNFILLED | \
+ _DD_NEW_TRI_LIGHT_TWOSIDE | \
+ _DD_NEW_TRI_OFFSET) \
+
+
+#define POINT_FALLBACK (DD_POINT_SMOOTH)
+#define LINE_FALLBACK (DD_LINE_STIPPLE|DD_LINE_SMOOTH)
+#define TRI_FALLBACK (DD_TRI_SMOOTH)
+#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK)
+#define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET|DD_TRI_UNFILLED)
+
+
+static void sisChooseRenderState(GLcontext *ctx)
+{
+ sisContextPtr smesa = SIS_CONTEXT( ctx );
+ GLuint flags = ctx->_TriangleCaps;
+ GLuint index = 0;
+ GLuint vertindex = 0;
+
+ if (ctx->Texture.Unit[0]._ReallyEnabled)
+ vertindex |= SIS_VERT_TEX0;
+ if (ctx->Texture.Unit[1]._ReallyEnabled)
+ vertindex |= SIS_VERT_TEX1;
+ if (ctx->Light.ShadeModel == GL_SMOOTH)
+ vertindex |= SIS_VERT_SMOOTH;
+
+ if (smesa->AGPCmdModeEnabled) {
+ smesa->draw_quad = sis_quad_func_agp[vertindex];
+ smesa->draw_tri = sis_tri_func_agp[vertindex];
+ smesa->draw_line = sis_line_func_agp[vertindex];
+ smesa->draw_point = sis_point_func_agp[vertindex];
+ } else {
+ smesa->draw_quad = sis_quad_func_mmio[vertindex];
+ smesa->draw_tri = sis_tri_func_mmio[vertindex];
+ smesa->draw_line = sis_line_func_mmio[vertindex];
+ smesa->draw_point = sis_point_func_mmio[vertindex];
+ }
+ smesa->AGPParseSet &= ~(MASK_VertexDWSize | MASK_VertexDataFormat);
+ smesa->AGPParseSet |= AGPParsingValues[vertindex];
+
+ if (flags & (ANY_RASTER_FLAGS|ANY_FALLBACK_FLAGS)) {
+
+ if (flags & ANY_RASTER_FLAGS) {
+ if (flags & DD_TRI_LIGHT_TWOSIDE) index |= SIS_TWOSIDE_BIT;
+ if (flags & DD_TRI_OFFSET) index |= SIS_OFFSET_BIT;
+ if (flags & DD_TRI_UNFILLED) index |= SIS_UNFILLED_BIT;
+ }
+
+ /* Hook in fallbacks for specific primitives.
+ */
+ if (flags & ANY_FALLBACK_FLAGS) {
+ if (flags & POINT_FALLBACK)
+ smesa->draw_point = sis_fallback_point;
+ if (flags & LINE_FALLBACK)
+ smesa->draw_line = sis_fallback_line;
+ if (flags & TRI_FALLBACK) {
+ smesa->draw_quad = sis_fallback_quad;
+ smesa->draw_tri = sis_fallback_tri;
+ }
+ index |= SIS_FALLBACK_BIT;
+ }
+ }
+
+ if (index != smesa->RenderIndex) {
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl->Driver.Render.Points = rast_tab[index].points;
+ tnl->Driver.Render.Line = 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 = sis_render_tab_verts;
+ tnl->Driver.Render.PrimTabElts = sis_render_tab_elts;
+ tnl->Driver.Render.ClippedLine = rast_tab[index].line;
+ /*XXX: sisFastRenderClippedPoly*/
+ tnl->Driver.Render.ClippedPolygon = sisRenderClippedPoly;
+ } else {
+ tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+ tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+ tnl->Driver.Render.ClippedLine = sisRenderClippedLine;
+ tnl->Driver.Render.ClippedPolygon = sisRenderClippedPoly;
+ }
+
+ smesa->RenderIndex = index;
+ }
+}
+
+/**********************************************************************/
+/* Multipass rendering for front buffering */
+/**********************************************************************/
+static GLboolean multipass_cliprect( GLcontext *ctx, GLuint pass )
+{
+ sisContextPtr smesa = SIS_CONTEXT( ctx );
+
+ if (pass >= smesa->driDrawable->numClipRects) {
+ return GL_FALSE;
+ } else {
+ GLint x1, y1, x2, y2;
+
+ x1 = smesa->driDrawable->pClipRects[pass].x1 - smesa->driDrawable->x;
+ y1 = smesa->driDrawable->pClipRects[pass].y1 - smesa->driDrawable->y;
+ x2 = smesa->driDrawable->pClipRects[pass].x2 - smesa->driDrawable->x;
+ y2 = smesa->driDrawable->pClipRects[pass].y2 - smesa->driDrawable->y;
+
+ if (ctx->Scissor.Enabled) {
+ GLint scisy1 = Y_FLIP(ctx->Scissor.Y + ctx->Scissor.Height - 1);
+ GLint scisy2 = Y_FLIP(ctx->Scissor.Y);
+
+ if (ctx->Scissor.X > x1)
+ x1 = ctx->Scissor.X;
+ if (scisy1 > y1)
+ y1 = scisy1;
+ if (ctx->Scissor.X + ctx->Scissor.Width - 1 < x2)
+ x2 = ctx->Scissor.X + ctx->Scissor.Width - 1;
+ if (scisy2 < y2)
+ y2 = scisy2;
+ }
+
+ MMIO(REG_3D_ClipTopBottom, y1 << 13 | y2);
+ MMIO(REG_3D_ClipLeftRight, x1 << 13 | x2);
+ /* Mark that we clobbered these registers */
+ smesa->GlobalFlag |= GFLAG_CLIPPING;
+ return GL_TRUE;
+ }
+}
+
+
+
+/**********************************************************************/
+/* Validate state at pipeline start */
+/**********************************************************************/
+
+static void sisRunPipeline( GLcontext *ctx )
+{
+ sisContextPtr smesa = SIS_CONTEXT( ctx );
+
+ LOCK_HARDWARE();
+ sisUpdateHWState( ctx );
+
+ if (smesa->AGPCmdModeEnabled) {
+ AGP_WritePtr = (GLfloat *)smesa->AGPCmdBufBase + *smesa->pAGPCmdBufNext;
+ AGP_StartPtr = AGP_WritePtr;
+ AGP_ReadPtr = (GLfloat *)((long)MMIO_READ(REG_3D_AGPCmBase) -
+ (long)smesa->AGPCmdBufAddr + (long)smesa->AGPCmdBufBase);
+ sisUpdateAGP( smesa );
+ }
+
+ if (!smesa->Fallback && smesa->NewGLState) {
+ if (smesa->NewGLState & _SIS_NEW_VERTEX_STATE)
+ sisChooseVertexState( ctx );
+
+ if (smesa->NewGLState & (_SIS_NEW_RENDER_STATE | _NEW_TEXTURE))
+ sisChooseRenderState( ctx );
+
+ smesa->NewGLState = 0;
+ }
+
+ _tnl_run_pipeline( ctx );
+
+ if (smesa->AGPCmdModeEnabled)
+ sisFireVertsAGP( smesa );
+ else
+ mEndPrimitive();
+ UNLOCK_HARDWARE();
+}
+
+/**********************************************************************/
+/* High level hooks for t_vb_render.c */
+/**********************************************************************/
+
+/* This is called when Mesa switches between rendering triangle
+ * primitives (such as GL_POLYGON, GL_QUADS, GL_TRIANGLE_STRIP, etc),
+ * and lines, points and bitmaps.
+ */
+
+static void sisRasterPrimitive( GLcontext *ctx, GLuint hwprim )
+{
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+ if (smesa->hw_primitive != hwprim) {
+ if (smesa->AGPCmdModeEnabled) {
+ sisFireVertsAGP( smesa );
+ smesa->AGPParseSet &= ~(MASK_PsDataType | MASK_PsShadingMode);
+ smesa->AGPParseSet |= hw_prim_agp_type[hwprim];
+ if (ctx->Light.ShadeModel == GL_FLAT)
+ smesa->AGPParseSet |= hw_prim_agp_shade[hwprim];
+ else
+ smesa->AGPParseSet |= MASK_PsShadingSmooth;
+ } else {
+ mEndPrimitive();
+ smesa->dwPrimitiveSet &= ~(MASK_DrawPrimitiveCommand |
+ MASK_SetFirePosition | MASK_ShadingMode);
+ smesa->dwPrimitiveSet |= hwprim | hw_prim_mmio_fire[hwprim];
+ if (ctx->Light.ShadeModel == GL_FLAT)
+ smesa->dwPrimitiveSet |= hw_prim_mmio_shade[hwprim];
+ else
+ smesa->dwPrimitiveSet |= SHADE_GOURAUD;
+ }
+ }
+ smesa->hw_primitive = hwprim;
+}
+
+static void sisRenderPrimitive( GLcontext *ctx, GLenum prim )
+{
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+
+ smesa->render_primitive = prim;
+ if (prim >= GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
+ return;
+ sisRasterPrimitive( ctx, hw_prim[prim] );
+}
+
+
+static void sisRenderStart( GLcontext *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+
+ /* Check for projective texturing. Make sure all texcoord
+ * pointers point to something. (fix in mesa?)
+ */
+ sisCheckTexSizes( ctx );
+
+ if (ctx->Color._DrawDestMask == FRONT_LEFT_BIT &&
+ smesa->driDrawable->numClipRects != 0)
+ {
+ multipass_cliprect(ctx, 0);
+ if (smesa->driDrawable->numClipRects > 1)
+ tnl->Driver.Render.Multipass = multipass_cliprect;
+ else
+ tnl->Driver.Render.Multipass = NULL;
+ } else {
+ tnl->Driver.Render.Multipass = NULL;
+ }
+}
+
+static void sisRenderFinish( GLcontext *ctx )
+{
+}
+
+/* Update SpaceLeft after an engine or current write pointer update */
+static void sisUpdateAGP( sisContextPtr smesa )
+{
+ /* ReadPtr == WritePtr is the empty case */
+ if (AGP_ReadPtr <= AGP_WritePtr)
+ AGP_SpaceLeft = (long)smesa->AGPCmdBufBase + (long)smesa->AGPCmdBufSize -
+ (long)AGP_WritePtr;
+ else
+ AGP_SpaceLeft = AGP_ReadPtr - AGP_WritePtr - 4;
+}
+
+/* Fires a set of vertices that have been written from AGP_StartPtr to
+ * AGP_WritePtr, using the smesa->AGPParseSet format.
+ */
+void
+sisFireVertsAGP( sisContextPtr smesa )
+{
+ if (AGP_WritePtr == AGP_StartPtr)
+ return;
+
+ mWait3DCmdQueue(5);
+ mEndPrimitive();
+ MMIO(REG_3D_AGPCmBase, (long)AGP_StartPtr - (long)smesa->AGPCmdBufBase +
+ (long)smesa->AGPCmdBufAddr);
+ MMIO(REG_3D_AGPTtDwNum, (((long)AGP_WritePtr - (long)AGP_StartPtr) >> 2) |
+ 0x50000000);
+ MMIO(REG_3D_ParsingSet, smesa->AGPParseSet);
+
+ MMIO(REG_3D_AGPCmFire, (GLint)(-1));
+ mEndPrimitive();
+
+ *(smesa->pAGPCmdBufNext) = (((long)AGP_WritePtr -
+ (long)smesa->AGPCmdBufBase) + 0xf) & ~0xf;
+ AGP_StartPtr = AGP_WritePtr;
+ sisUpdateAGP( smesa );
+}
+
+/* Make sure there are more than num dwords left in the AGP queue. */
+static void
+sisMakeRoomAGP( sisContextPtr smesa, GLint num )
+{
+ int size = num * 4;
+
+ if (size <= AGP_SpaceLeft) {
+ AGP_SpaceLeft -= size;
+ return;
+ }
+ /* Wrapping */
+ if (AGP_WritePtr + num > (GLfloat *)(smesa->AGPCmdBufBase +
+ smesa->AGPCmdBufSize))
+ {
+ sisFireVertsAGP( smesa );
+ AGP_WritePtr = (GLfloat *)smesa->AGPCmdBufBase;
+ AGP_StartPtr = AGP_WritePtr;
+ sisUpdateAGP( smesa );
+ WaitEngIdle( smesa ); /* XXX Why is this necessary? */
+ }
+
+ if (size > AGP_SpaceLeft) {
+ /* Update the cached engine read pointer */
+ AGP_ReadPtr = (GLfloat *)((long)MMIO_READ(REG_3D_AGPCmBase) -
+ (long)smesa->AGPCmdBufAddr + (long)smesa->AGPCmdBufBase);
+ sisUpdateAGP( smesa );
+ while (size > AGP_SpaceLeft) {
+ /* Spin until space is available. */
+ usleep(1);
+ AGP_ReadPtr = (GLfloat *)((long)MMIO_READ(REG_3D_AGPCmBase) -
+ (long)smesa->AGPCmdBufAddr + (long)smesa->AGPCmdBufBase);
+ sisUpdateAGP( smesa );
+ }
+ }
+ AGP_SpaceLeft -= size;
+}
+
+/**********************************************************************/
+/* Transition to/from hardware rasterization. */
+/**********************************************************************/
+
+void sisFallback( GLcontext *ctx, GLuint bit, GLboolean mode )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+ GLuint oldfallback = smesa->Fallback;
+
+ if (mode) {
+ smesa->Fallback |= bit;
+ if (oldfallback == 0) {
+ _swsetup_Wakeup( ctx );
+ smesa->RenderIndex = ~0;
+ }
+ }
+ else {
+ smesa->Fallback &= ~bit;
+ if (oldfallback == bit) {
+ _swrast_flush( ctx );
+ tnl->Driver.Render.Start = sisRenderStart;
+ tnl->Driver.Render.PrimitiveNotify = sisRenderPrimitive;
+ tnl->Driver.Render.Finish = sisRenderFinish;
+ tnl->Driver.Render.BuildVertices = sisBuildVertices;
+ smesa->NewGLState |= (_SIS_NEW_RENDER_STATE|
+ _SIS_NEW_VERTEX_STATE);
+ }
+ }
+}
+
+
+/**********************************************************************/
+/* Initialization. */
+/**********************************************************************/
+
+void sisInitTriFuncs( GLcontext *ctx )
+{
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ static int firsttime = 1;
+
+ if (firsttime) {
+ init_rast_tab();
+ firsttime = 0;
+
+ sis_vert_init_none();
+ sis_vert_init_s();
+ sis_vert_init_t0();
+ sis_vert_init_st0();
+ sis_vert_init_t1();
+ sis_vert_init_st1();
+ sis_vert_init_t0t1();
+ sis_vert_init_st0t1();
+ }
+
+ tnl->Driver.RunPipeline = sisRunPipeline;
+ tnl->Driver.Render.Start = sisRenderStart;
+ tnl->Driver.Render.Finish = sisRenderFinish;
+ tnl->Driver.Render.PrimitiveNotify = sisRenderPrimitive;
+ tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple;
+ tnl->Driver.Render.BuildVertices = sisBuildVertices;
+ tnl->Driver.Render.Multipass = NULL;
+
+ if (getenv("SIS_FORCE_FALLBACK") != NULL)
+ sisFallback(ctx, SIS_FALLBACK_FORCE, 1);
+ else
+ sisFallback(ctx, SIS_FALLBACK_FORCE, 0);
+
+ smesa->RenderIndex = ~0;
+ smesa->NewGLState |= (_SIS_NEW_RENDER_STATE|
+ _SIS_NEW_VERTEX_STATE);
+}