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Diffstat (limited to 'src/mesa/drivers/dri/i810/i810tris.c')
-rw-r--r--src/mesa/drivers/dri/i810/i810tris.c867
1 files changed, 867 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i810/i810tris.c b/src/mesa/drivers/dri/i810/i810tris.c
new file mode 100644
index 00000000000..364b571152b
--- /dev/null
+++ b/src/mesa/drivers/dri/i810/i810tris.c
@@ -0,0 +1,867 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/i810/i810tris.c,v 1.7 2002/10/30 12:51:33 alanh Exp $ */
+/**************************************************************************
+
+Copyright 2001 VA Linux Systems Inc., Fremont, California.
+
+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, VA LINUX SYSTEMS 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:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "glheader.h"
+#include "mtypes.h"
+#include "macros.h"
+#include "enums.h"
+#include "colormac.h"
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+
+#include "i810screen.h"
+#include "i810_dri.h"
+
+#include "i810tris.h"
+#include "i810state.h"
+#include "i810vb.h"
+#include "i810ioctl.h"
+
+static void i810RenderPrimitive( GLcontext *ctx, GLenum prim );
+
+/***********************************************************************
+ * Emit primitives as inline vertices *
+ ***********************************************************************/
+
+#if defined(USE_X86_ASM)
+#define COPY_DWORDS( j, vb, vertsize, v ) \
+do { \
+ int __tmp; \
+ __asm__ __volatile__( "rep ; movsl" \
+ : "=%c" (j), "=D" (vb), "=S" (__tmp) \
+ : "0" (vertsize), \
+ "D" ((long)vb), \
+ "S" ((long)v) ); \
+} while (0)
+#else
+#define COPY_DWORDS( j, vb, vertsize, v ) \
+do { \
+ for ( j = 0 ; j < vertsize ; j++ ) \
+ vb[j] = ((GLuint *)v)[j]; \
+ vb += vertsize; \
+} while (0)
+#endif
+
+static void __inline__ i810_draw_triangle( i810ContextPtr imesa,
+ i810VertexPtr v0,
+ i810VertexPtr v1,
+ i810VertexPtr v2 )
+{
+ GLuint vertsize = imesa->vertex_size;
+ GLuint *vb = i810AllocDmaLow( imesa, 3 * 4 * vertsize );
+ int j;
+
+ COPY_DWORDS( j, vb, vertsize, v0 );
+ COPY_DWORDS( j, vb, vertsize, v1 );
+ COPY_DWORDS( j, vb, vertsize, v2 );
+}
+
+
+static void __inline__ i810_draw_quad( i810ContextPtr imesa,
+ i810VertexPtr v0,
+ i810VertexPtr v1,
+ i810VertexPtr v2,
+ i810VertexPtr v3 )
+{
+ GLuint vertsize = imesa->vertex_size;
+ GLuint *vb = i810AllocDmaLow( imesa, 6 * 4 * vertsize );
+ int j;
+
+ COPY_DWORDS( j, vb, vertsize, v0 );
+ COPY_DWORDS( j, vb, vertsize, v1 );
+ COPY_DWORDS( j, vb, vertsize, v3 );
+ COPY_DWORDS( j, vb, vertsize, v1 );
+ COPY_DWORDS( j, vb, vertsize, v2 );
+ COPY_DWORDS( j, vb, vertsize, v3 );
+}
+
+
+static __inline__ void i810_draw_point( i810ContextPtr imesa,
+ i810VertexPtr tmp )
+{
+ GLfloat sz = imesa->glCtx->Point._Size * .5;
+ int vertsize = imesa->vertex_size;
+ GLuint *vb = i810AllocDmaLow( imesa, 2 * 4 * vertsize );
+ int j;
+
+ /* Draw a point as a horizontal line.
+ */
+ *(float *)&vb[0] = tmp->v.x - sz + 0.125;
+ for (j = 1 ; j < vertsize ; j++)
+ vb[j] = tmp->ui[j];
+ vb += vertsize;
+
+ *(float *)&vb[0] = tmp->v.x + sz + 0.125;
+ for (j = 1 ; j < vertsize ; j++)
+ vb[j] = tmp->ui[j];
+ vb += vertsize;
+}
+
+
+static __inline__ void i810_draw_line( i810ContextPtr imesa,
+ i810VertexPtr v0,
+ i810VertexPtr v1 )
+{
+ GLuint vertsize = imesa->vertex_size;
+ GLuint *vb = i810AllocDmaLow( imesa, 2 * 4 * vertsize );
+ int j;
+
+ COPY_DWORDS( j, vb, vertsize, v0 );
+ COPY_DWORDS( j, vb, vertsize, v1 );
+}
+
+
+
+/***********************************************************************
+ * Macros for t_dd_tritmp.h to draw basic primitives *
+ ***********************************************************************/
+
+#define TRI( a, b, c ) \
+do { \
+ if (0) fprintf(stderr, "hw TRI\n"); \
+ if (DO_FALLBACK) \
+ imesa->draw_tri( imesa, a, b, c ); \
+ else \
+ i810_draw_triangle( imesa, a, b, c ); \
+} while (0)
+
+#define QUAD( a, b, c, d ) \
+do { \
+ if (0) fprintf(stderr, "hw QUAD\n"); \
+ if (DO_FALLBACK) { \
+ imesa->draw_tri( imesa, a, b, d ); \
+ imesa->draw_tri( imesa, b, c, d ); \
+ } else \
+ i810_draw_quad( imesa, a, b, c, d ); \
+} while (0)
+
+#define LINE( v0, v1 ) \
+do { \
+ if (0) fprintf(stderr, "hw LINE\n"); \
+ if (DO_FALLBACK) \
+ imesa->draw_line( imesa, v0, v1 ); \
+ else \
+ i810_draw_line( imesa, v0, v1 ); \
+} while (0)
+
+#define POINT( v0 ) \
+do { \
+ if (0) fprintf(stderr, "hw POINT\n"); \
+ if (DO_FALLBACK) \
+ imesa->draw_point( imesa, v0 ); \
+ else \
+ i810_draw_point( imesa, v0 ); \
+} while (0)
+
+
+/***********************************************************************
+ * Build render functions from dd templates *
+ ***********************************************************************/
+
+#define I810_OFFSET_BIT 0x01
+#define I810_TWOSIDE_BIT 0x02
+#define I810_UNFILLED_BIT 0x04
+#define I810_FALLBACK_BIT 0x08
+#define I810_MAX_TRIFUNC 0x10
+
+
+static struct {
+ points_func points;
+ line_func line;
+ triangle_func triangle;
+ quad_func quad;
+} rast_tab[I810_MAX_TRIFUNC];
+
+
+#define DO_FALLBACK (IND & I810_FALLBACK_BIT)
+#define DO_OFFSET (IND & I810_OFFSET_BIT)
+#define DO_UNFILLED (IND & I810_UNFILLED_BIT)
+#define DO_TWOSIDE (IND & I810_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 i810Vertex
+#define TAB rast_tab
+
+/* Only used to pull back colors into vertices (ie, we know color is
+ * floating point).
+ */
+#define I810_COLOR( dst, src ) \
+do { \
+ dst[0] = src[2]; \
+ dst[1] = src[1]; \
+ dst[2] = src[0]; \
+ dst[3] = src[3]; \
+} while (0)
+
+#define I810_SPEC( dst, src ) \
+do { \
+ dst[0] = src[2]; \
+ dst[1] = src[1]; \
+ dst[2] = src[0]; \
+} while (0)
+
+
+#define DEPTH_SCALE (1.0/0xffff)
+#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) (imesa->verts + (e<<imesa->vertex_stride_shift))
+
+#define VERT_SET_RGBA( v, c ) I810_COLOR( v->ub4[coloroffset], c )
+#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( v, c ) if (havespec) I810_SPEC( v->ub4[5], c )
+#define VERT_COPY_SPEC( v0, v1 ) if (havespec) COPY_3V(v0->ub4[5], v1->ub4[5])
+#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) \
+ i810ContextPtr imesa = I810_CONTEXT(ctx); \
+ GLuint color[n], spec[n]; \
+ GLuint coloroffset = (imesa->vertex_size == 4 ? 3 : 4); \
+ GLboolean havespec = (imesa->vertex_size > 4); \
+ (void) color; (void) spec; (void) coloroffset; (void) havespec;
+
+
+/***********************************************************************
+ * Helpers for rendering unfilled primitives *
+ ***********************************************************************/
+
+static const GLuint hw_prim[GL_POLYGON+1] = {
+ PR_LINES,
+ PR_LINES,
+ PR_LINES,
+ PR_LINES,
+ PR_TRIANGLES,
+ PR_TRIANGLES,
+ PR_TRIANGLES,
+ PR_TRIANGLES,
+ PR_TRIANGLES,
+ PR_TRIANGLES
+};
+
+#define RASTERIZE(x) if (imesa->hw_primitive != hw_prim[x]) \
+ i810RasterPrimitive( ctx, x, hw_prim[x] )
+#define RENDER_PRIMITIVE imesa->render_primitive
+#define TAG(x) x
+#define IND I810_FALLBACK_BIT
+#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 (I810_OFFSET_BIT)
+#define TAG(x) x##_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT)
+#define TAG(x) x##_twoside_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_OFFSET_BIT|I810_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT|I810_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT|I810_UNFILLED_BIT)
+#define TAG(x) x##_twoside_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_FALLBACK_BIT)
+#define TAG(x) x##_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_OFFSET_BIT|I810_FALLBACK_BIT)
+#define TAG(x) x##_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT|I810_FALLBACK_BIT)
+#define TAG(x) x##_twoside_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT|I810_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_UNFILLED_BIT|I810_FALLBACK_BIT)
+#define TAG(x) x##_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_OFFSET_BIT|I810_UNFILLED_BIT|I810_FALLBACK_BIT)
+#define TAG(x) x##_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT|I810_UNFILLED_BIT|I810_FALLBACK_BIT)
+#define TAG(x) x##_twoside_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (I810_TWOSIDE_BIT|I810_OFFSET_BIT|I810_UNFILLED_BIT| \
+ I810_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
+i810_fallback_tri( i810ContextPtr imesa,
+ i810Vertex *v0,
+ i810Vertex *v1,
+ i810Vertex *v2 )
+{
+ GLcontext *ctx = imesa->glCtx;
+ SWvertex v[3];
+ i810_translate_vertex( ctx, v0, &v[0] );
+ i810_translate_vertex( ctx, v1, &v[1] );
+ i810_translate_vertex( ctx, v2, &v[2] );
+ _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
+}
+
+
+static void
+i810_fallback_line( i810ContextPtr imesa,
+ i810Vertex *v0,
+ i810Vertex *v1 )
+{
+ GLcontext *ctx = imesa->glCtx;
+ SWvertex v[2];
+ i810_translate_vertex( ctx, v0, &v[0] );
+ i810_translate_vertex( ctx, v1, &v[1] );
+ _swrast_Line( ctx, &v[0], &v[1] );
+}
+
+
+static void
+i810_fallback_point( i810ContextPtr imesa,
+ i810Vertex *v0 )
+{
+ GLcontext *ctx = imesa->glCtx;
+ SWvertex v[1];
+ i810_translate_vertex( ctx, v0, &v[0] );
+ _swrast_Point( ctx, &v[0] );
+}
+
+
+
+/**********************************************************************/
+/* Render unclipped begin/end objects */
+/**********************************************************************/
+
+#define IND 0
+#define V(x) (i810Vertex *)(vertptr + ((x)<<vertshift))
+#define RENDER_POINTS( start, count ) \
+ for ( ; start < count ; start++) POINT( V(ELT(start)) );
+#define RENDER_LINE( v0, v1 ) LINE( V(v0), V(v1) )
+#define RENDER_TRI( v0, v1, v2 ) TRI( V(v0), V(v1), V(v2) )
+#define RENDER_QUAD( v0, v1, v2, v3 ) QUAD( V(v0), V(v1), V(v2), V(v3) )
+#define INIT(x) i810RenderPrimitive( ctx, x )
+#undef LOCAL_VARS
+#define LOCAL_VARS \
+ i810ContextPtr imesa = I810_CONTEXT(ctx); \
+ GLubyte *vertptr = (GLubyte *)imesa->verts; \
+ const GLuint vertshift = imesa->vertex_stride_shift; \
+ 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) i810_##x##_verts
+#include "tnl/t_vb_rendertmp.h"
+#undef ELT
+#undef TAG
+#define TAG(x) i810_##x##_elts
+#define ELT(x) elt[x]
+#include "tnl/t_vb_rendertmp.h"
+
+/**********************************************************************/
+/* Render clipped primitives */
+/**********************************************************************/
+
+
+
+static void i810RenderClippedPoly( GLcontext *ctx, const GLuint *elts,
+ GLuint n )
+{
+ i810ContextPtr imesa = I810_CONTEXT(ctx);
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ GLuint prim = imesa->render_primitive;
+
+ /* 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;
+ }
+
+ /* Restore the render primitive
+ */
+ if (prim != GL_POLYGON)
+ tnl->Driver.Render.PrimitiveNotify( ctx, prim );
+}
+
+static void i810RenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl->Driver.Render.Line( ctx, ii, jj );
+}
+
+static void i810FastRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
+ GLuint n )
+{
+ i810ContextPtr imesa = I810_CONTEXT( ctx );
+ GLuint vertsize = imesa->vertex_size;
+ GLuint *vb = i810AllocDmaLow( imesa, (n-2) * 3 * 4 * vertsize );
+ GLubyte *vertptr = (GLubyte *)imesa->verts;
+ const GLuint vertshift = imesa->vertex_stride_shift;
+ const GLuint *start = (const GLuint *)V(elts[0]);
+ int i,j;
+
+ for (i = 2 ; i < n ; i++) {
+ COPY_DWORDS( j, vb, vertsize, V(elts[i-1]) );
+ COPY_DWORDS( j, vb, vertsize, V(elts[i]) );
+ COPY_DWORDS( j, vb, vertsize, start );
+ }
+}
+
+/**********************************************************************/
+/* Choose render functions */
+/**********************************************************************/
+
+/***********************************************************************
+ * Rasterization fallback helpers *
+ ***********************************************************************/
+
+
+
+#define _I810_NEW_RENDERSTATE (_DD_NEW_LINE_STIPPLE | \
+ _DD_NEW_TRI_UNFILLED | \
+ _DD_NEW_TRI_LIGHT_TWOSIDE | \
+ _DD_NEW_TRI_OFFSET | \
+ _DD_NEW_TRI_STIPPLE | \
+ _NEW_POLYGONSTIPPLE)
+
+#define POINT_FALLBACK (0)
+#define LINE_FALLBACK (DD_LINE_STIPPLE)
+#define TRI_FALLBACK (0)
+#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK|\
+ DD_TRI_STIPPLE)
+#define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET|DD_TRI_UNFILLED)
+
+static void i810ChooseRenderState(GLcontext *ctx)
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ i810ContextPtr imesa = I810_CONTEXT(ctx);
+ GLuint flags = ctx->_TriangleCaps;
+ GLuint index = 0;
+
+ if (I810_DEBUG & DEBUG_STATE)
+ fprintf(stderr,"\n%s\n",__FUNCTION__);
+
+ if (flags & (ANY_FALLBACK_FLAGS|ANY_RASTER_FLAGS)) {
+ if (flags & ANY_RASTER_FLAGS) {
+ if (flags & DD_TRI_LIGHT_TWOSIDE) index |= I810_TWOSIDE_BIT;
+ if (flags & DD_TRI_OFFSET) index |= I810_OFFSET_BIT;
+ if (flags & DD_TRI_UNFILLED) index |= I810_UNFILLED_BIT;
+ }
+
+ imesa->draw_point = i810_draw_point;
+ imesa->draw_line = i810_draw_line;
+ imesa->draw_tri = i810_draw_triangle;
+
+ /* Hook in fallbacks for specific primitives.
+ */
+ if (flags & ANY_FALLBACK_FLAGS)
+ {
+ if (flags & POINT_FALLBACK)
+ imesa->draw_point = i810_fallback_point;
+
+ if (flags & LINE_FALLBACK)
+ imesa->draw_line = i810_fallback_line;
+
+ if (flags & TRI_FALLBACK)
+ imesa->draw_tri = i810_fallback_tri;
+
+ if ((flags & DD_TRI_STIPPLE) && !imesa->stipple_in_hw)
+ imesa->draw_tri = i810_fallback_tri;
+
+ index |= I810_FALLBACK_BIT;
+ }
+ }
+
+ if (imesa->RenderIndex != index) {
+ imesa->RenderIndex = index;
+
+ 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 = i810_render_tab_verts;
+ tnl->Driver.Render.PrimTabElts = i810_render_tab_elts;
+ tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */
+ tnl->Driver.Render.ClippedPolygon = i810FastRenderClippedPoly;
+ } else {
+ tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+ tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+ tnl->Driver.Render.ClippedLine = i810RenderClippedLine;
+ tnl->Driver.Render.ClippedPolygon = i810RenderClippedPoly;
+ }
+ }
+}
+
+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
+};
+
+
+/**********************************************************************/
+/* High level hooks for t_vb_render.c */
+/**********************************************************************/
+
+
+
+/* Determine the rasterized primitive when not drawing unfilled
+ * polygons.
+ *
+ * Used only for the default render stage which always decomposes
+ * primitives to trianges/lines/points. For the accelerated stage,
+ * which renders strips as strips, the equivalent calculations are
+ * performed in i810render.c.
+ */
+static void i810RenderPrimitive( GLcontext *ctx, GLenum prim )
+{
+ i810ContextPtr imesa = I810_CONTEXT(ctx);
+ GLuint rprim = reduced_prim[prim];
+
+ imesa->render_primitive = prim;
+
+ if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
+ return;
+
+ if (imesa->reduced_primitive != rprim ||
+ hw_prim[prim] != imesa->hw_primitive) {
+ i810RasterPrimitive( ctx, rprim, hw_prim[prim] );
+ }
+}
+
+static void i810RunPipeline( GLcontext *ctx )
+{
+ i810ContextPtr imesa = I810_CONTEXT(ctx);
+
+ if (imesa->new_state) {
+ if (imesa->new_state & _NEW_TEXTURE)
+ i810UpdateTextureState( ctx ); /* may modify imesa->new_state */
+
+ if (!imesa->Fallback) {
+ if (imesa->new_state & _I810_NEW_VERTEX)
+ i810ChooseVertexState( ctx );
+
+ if (imesa->new_state & _I810_NEW_RENDERSTATE)
+ i810ChooseRenderState( ctx );
+ }
+
+ imesa->new_state = 0;
+ }
+
+ _tnl_run_pipeline( ctx );
+}
+
+static void i810RenderStart( GLcontext *ctx )
+{
+ /* Check for projective textureing. Make sure all texcoord
+ * pointers point to something. (fix in mesa?)
+ */
+ i810CheckTexSizes( ctx );
+}
+
+static void i810RenderFinish( GLcontext *ctx )
+{
+ if (I810_CONTEXT(ctx)->RenderIndex & I810_FALLBACK_BIT)
+ _swrast_flush( ctx );
+}
+
+
+
+
+/* System to flush dma and emit state changes based on the rasterized
+ * primitive.
+ */
+void i810RasterPrimitive( GLcontext *ctx,
+ GLenum rprim,
+ GLuint hwprim )
+{
+ i810ContextPtr imesa = I810_CONTEXT(ctx);
+ GLuint st1 = imesa->Setup[I810_CTXREG_ST1];
+ GLuint aa = imesa->Setup[I810_CTXREG_AA];
+ GLuint lcs = imesa->Setup[I810_CTXREG_LCS];
+
+ st1 &= ~ST1_ENABLE;
+ aa &= ~AA_ENABLE;
+
+ if (I810_DEBUG & DEBUG_PRIMS) {
+ /* Prints reduced prim, and hw prim */
+ char *prim_name = "Unknown";
+
+ switch(hwprim) {
+ case PR_LINES:
+ prim_name = "Lines";
+ break;
+ case PR_LINESTRIP:
+ prim_name = "LineStrip";
+ break;
+ case PR_TRIANGLES:
+ prim_name = "Triangles";
+ break;
+ case PR_TRISTRIP_0:
+ prim_name = "TriStrip_0";
+ break;
+ case PR_TRIFAN:
+ prim_name = "TriFan";
+ break;
+ case PR_POLYGON:
+ prim_name = "Polygons";
+ break;
+ default:
+ break;
+ }
+
+ fprintf(stderr, "%s : rprim(%s), hwprim(%s)\n",
+ __FUNCTION__,
+ _mesa_lookup_enum_by_nr(rprim),
+ prim_name);
+ }
+
+ switch (rprim) {
+ case GL_TRIANGLES:
+ if (ctx->Polygon.StippleFlag)
+ st1 |= ST1_ENABLE;
+ if (ctx->Polygon.SmoothFlag)
+ aa |= AA_ENABLE;
+ break;
+ case GL_LINES:
+ lcs &= ~(LCS_LINEWIDTH_3_0|LCS_LINEWIDTH_0_5);
+ lcs |= imesa->LcsLineWidth;
+ if (ctx->Line.SmoothFlag) {
+ aa |= AA_ENABLE;
+ lcs |= LCS_LINEWIDTH_0_5;
+ }
+ break;
+ case GL_POINTS:
+ lcs &= ~(LCS_LINEWIDTH_3_0|LCS_LINEWIDTH_0_5);
+ lcs |= imesa->LcsPointSize;
+ if (ctx->Point.SmoothFlag) {
+ aa |= AA_ENABLE;
+ lcs |= LCS_LINEWIDTH_0_5;
+ }
+ break;
+ default:
+ return;
+ }
+
+ imesa->reduced_primitive = rprim;
+
+ if (st1 != imesa->Setup[I810_CTXREG_ST1] ||
+ aa != imesa->Setup[I810_CTXREG_AA] ||
+ lcs != imesa->Setup[I810_CTXREG_LCS])
+ {
+ I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
+ imesa->hw_primitive = hwprim;
+ imesa->Setup[I810_CTXREG_LCS] = lcs;
+ imesa->Setup[I810_CTXREG_ST1] = st1;
+ imesa->Setup[I810_CTXREG_AA] = aa;
+ }
+ else if (hwprim != imesa->hw_primitive) {
+ I810_STATECHANGE(imesa, 0);
+ imesa->hw_primitive = hwprim;
+ }
+}
+
+/**********************************************************************/
+/* Transition to/from hardware rasterization. */
+/**********************************************************************/
+static char *fallbackStrings[] = {
+ "Texture",
+ "Draw buffer",
+ "Read buffer",
+ "Color mask",
+ "Render mode",
+ "Stencil",
+ "Stipple",
+ "User disable"
+};
+
+
+static char *getFallbackString(GLuint bit)
+{
+ int i = 0;
+ while (bit > 1) {
+ i++;
+ bit >>= 1;
+ }
+ return fallbackStrings[i];
+}
+
+void i810Fallback( i810ContextPtr imesa, GLuint bit, GLboolean mode )
+{
+ GLcontext *ctx = imesa->glCtx;
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ GLuint oldfallback = imesa->Fallback;
+
+ if (0) fprintf(stderr, "%s old %x bit %x mode %d\n", __FUNCTION__,
+ imesa->Fallback, bit, mode );
+
+ if (mode) {
+ imesa->Fallback |= bit;
+ if (oldfallback == 0) {
+ I810_FIREVERTICES(imesa);
+ if (I810_DEBUG & DEBUG_FALLBACKS)
+ fprintf(stderr, "ENTER FALLBACK %s\n", getFallbackString( bit ));
+ _swsetup_Wakeup( ctx );
+ imesa->RenderIndex = ~0;
+ }
+ }
+ else {
+ imesa->Fallback &= ~bit;
+ if (oldfallback == bit) {
+ _swrast_flush( ctx );
+ if (I810_DEBUG & DEBUG_FALLBACKS)
+ fprintf(stderr, "LEAVE FALLBACK %s\n", getFallbackString( bit ));
+ tnl->Driver.Render.Start = i810RenderStart;
+ tnl->Driver.Render.PrimitiveNotify = i810RenderPrimitive;
+ tnl->Driver.Render.Finish = i810RenderFinish;
+ tnl->Driver.Render.BuildVertices = i810BuildVertices;
+ imesa->new_state |= (_I810_NEW_RENDERSTATE|_I810_NEW_VERTEX);
+ }
+ }
+}
+
+
+/**********************************************************************/
+/* Initialization. */
+/**********************************************************************/
+
+
+void i810InitTriFuncs( GLcontext *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ static int firsttime = 1;
+
+ if (firsttime) {
+ init_rast_tab();
+ firsttime = 0;
+ }
+
+ tnl->Driver.RunPipeline = i810RunPipeline;
+ tnl->Driver.Render.Start = i810RenderStart;
+ tnl->Driver.Render.Finish = i810RenderFinish;
+ tnl->Driver.Render.PrimitiveNotify = i810RenderPrimitive;
+ tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple;
+ tnl->Driver.Render.BuildVertices = i810BuildVertices;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-04 15:09:36 +0000