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-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagetris.c1297
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diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagetris.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagetris.c
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index 000000000..184704013
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagetris.c
@@ -0,0 +1,1297 @@
+/* $XFree86$ */ /* -*- c-basic-offset: 3 -*- */
+/**************************************************************************
+
+Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and
+ 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 <keithw@valinux.com>
+ * Felix Kuehling <fxkuehl@gmx.de>
+ *
+ */
+
+#include <stdio.h>
+#include <math.h>
+
+#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 "savagetris.h"
+#include "savagestate.h"
+#include "savagetex.h"
+#include "savageioctl.h"
+#include "savage_bci.h"
+
+static void savageRasterPrimitive( GLcontext *ctx, GLuint prim );
+static void savageRenderPrimitive( GLcontext *ctx, GLenum prim );
+
+
+static 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
+};
+
+
+/***********************************************************************
+ * Emit primitives *
+ ***********************************************************************/
+
+#if defined (USE_X86_ASM)
+#define EMIT_VERT( j, vb, vertex_size, start, v ) \
+do { int __tmp; \
+ vb += start; \
+ __asm__ __volatile__( "rep ; movsl" \
+ : "=%c" (j), "=D" (vb), "=S" (__tmp) \
+ : "0" (vertex_size-start), \
+ "D" ((long)vb), \
+ "S" ((long)&(v)->ui[start])); \
+} while (0)
+#else
+#define EMIT_VERT( j, vb, vertex_size, start, v ) \
+do { \
+ for ( j = start ; j < vertex_size ; j++ ) \
+ vb[j] = (v)->ui[j]; \
+ vb += vertex_size; \
+} while (0)
+#endif
+
+static void __inline__ savage_draw_triangle (savageContextPtr imesa,
+ savageVertexPtr v0,
+ savageVertexPtr v1,
+ savageVertexPtr v2) {
+ GLuint vertsize = imesa->HwVertexSize;
+ u_int32_t *vb = savageAllocVtxBuf (imesa, 3*vertsize);
+ GLuint j;
+
+ EMIT_VERT (j, vb, vertsize, 0, v0);
+ EMIT_VERT (j, vb, vertsize, 0, v1);
+ EMIT_VERT (j, vb, vertsize, 0, v2);
+}
+
+static void __inline__ savage_draw_quad (savageContextPtr imesa,
+ savageVertexPtr v0,
+ savageVertexPtr v1,
+ savageVertexPtr v2,
+ savageVertexPtr v3) {
+ GLuint vertsize = imesa->HwVertexSize;
+ u_int32_t *vb = savageAllocVtxBuf (imesa, 6*vertsize);
+ GLuint j;
+
+ EMIT_VERT (j, vb, vertsize, 0, v0);
+ EMIT_VERT (j, vb, vertsize, 0, v1);
+ EMIT_VERT (j, vb, vertsize, 0, v3);
+ EMIT_VERT (j, vb, vertsize, 0, v1);
+ EMIT_VERT (j, vb, vertsize, 0, v2);
+ EMIT_VERT (j, vb, vertsize, 0, v3);
+}
+
+static __inline__ void savage_draw_point (savageContextPtr imesa,
+ savageVertexPtr tmp) {
+ GLuint vertsize = imesa->HwVertexSize;
+ u_int32_t *vb = savageAllocVtxBuf (imesa, 6*vertsize);
+ const GLfloat x = tmp->v.x;
+ const GLfloat y = tmp->v.y;
+ const GLfloat sz = imesa->glCtx->Point._Size * .5;
+ GLuint j;
+
+ *(float *)&vb[0] = x - sz;
+ *(float *)&vb[1] = y - sz;
+ EMIT_VERT (j, vb, vertsize, 2, tmp);
+
+ *(float *)&vb[0] = x + sz;
+ *(float *)&vb[1] = y - sz;
+ EMIT_VERT (j, vb, vertsize, 2, tmp);
+
+ *(float *)&vb[0] = x + sz;
+ *(float *)&vb[1] = y + sz;
+ EMIT_VERT (j, vb, vertsize, 2, tmp);
+
+ *(float *)&vb[0] = x + sz;
+ *(float *)&vb[1] = y + sz;
+ EMIT_VERT (j, vb, vertsize, 2, tmp);
+
+ *(float *)&vb[0] = x - sz;
+ *(float *)&vb[1] = y + sz;
+ EMIT_VERT (j, vb, vertsize, 2, tmp);
+
+ *(float *)&vb[0] = x - sz;
+ *(float *)&vb[1] = y - sz;
+ EMIT_VERT (j, vb, vertsize, 2, tmp);
+}
+
+static __inline__ void savage_draw_line (savageContextPtr imesa,
+ savageVertexPtr v0,
+ savageVertexPtr v1 ) {
+ GLuint vertsize = imesa->HwVertexSize;
+ u_int32_t *vb = savageAllocVtxBuf (imesa, 6*vertsize);
+ GLfloat width = imesa->glCtx->Line._Width;
+ GLfloat dx, dy, ix, iy;
+ GLuint j;
+
+ dx = v0->v.x - v1->v.x;
+ dy = v0->v.y - v1->v.y;
+
+ ix = width * .5; iy = 0;
+ if (dx * dx > dy * dy) {
+ iy = ix; ix = 0;
+ }
+
+ *(float *)&vb[0] = v0->v.x - ix;
+ *(float *)&vb[1] = v0->v.y - iy;
+ EMIT_VERT (j, vb, vertsize, 2, v0);
+
+ *(float *)&vb[0] = v1->v.x + ix;
+ *(float *)&vb[1] = v1->v.y + iy;
+ EMIT_VERT (j, vb, vertsize, 2, v1);
+
+ *(float *)&vb[0] = v0->v.x + ix;
+ *(float *)&vb[1] = v0->v.y + iy;
+ EMIT_VERT (j, vb, vertsize, 2, v0);
+
+ *(float *)&vb[0] = v0->v.x - ix;
+ *(float *)&vb[1] = v0->v.y - iy;
+ EMIT_VERT (j, vb, vertsize, 2, v0);
+
+ *(float *)&vb[0] = v1->v.x - ix;
+ *(float *)&vb[1] = v1->v.y - iy;
+ EMIT_VERT (j, vb, vertsize, 2, v1);
+
+ *(float *)&vb[0] = v1->v.x + ix;
+ *(float *)&vb[1] = v1->v.y + iy;
+ EMIT_VERT (j, vb, vertsize, 2, v1);
+}
+
+/* Fallback drawing functions for the ptex hack. Code duplication
+ * (especially lines and points) isn't beautiful, but I didn't feel
+ * like inventing yet another template. :-/
+ */
+#define PTEX_VERTEX( j, tmp, vertex_size, start, v) \
+do { \
+ GLfloat rhw = 1.0 / v->f[vertex_size]; \
+ for ( j = start ; j < vertex_size ; j++ ) \
+ tmp.f[j] = v->f[j]; \
+ tmp.f[3] *= v->f[vertex_size]; \
+ tmp.f[vertex_size-2] *= rhw; \
+ tmp.f[vertex_size-1] *= rhw; \
+} while (0)
+
+static void __inline__ savage_ptex_tri (savageContextPtr imesa,
+ savageVertexPtr v0,
+ savageVertexPtr v1,
+ savageVertexPtr v2) {
+ GLuint vertsize = imesa->HwVertexSize;
+ u_int32_t *vb = savageAllocVtxBuf (imesa, 3*vertsize);
+ savageVertex tmp;
+ GLuint j;
+
+ PTEX_VERTEX (j, tmp, vertsize, 0, v0); EMIT_VERT (j, vb, vertsize, 0, &tmp);
+ PTEX_VERTEX (j, tmp, vertsize, 0, v1); EMIT_VERT (j, vb, vertsize, 0, &tmp);
+ PTEX_VERTEX (j, tmp, vertsize, 0, v2); EMIT_VERT (j, vb, vertsize, 0, &tmp);
+}
+
+static __inline__ void savage_ptex_line (savageContextPtr imesa,
+ savageVertexPtr v0,
+ savageVertexPtr v1 ) {
+ GLuint vertsize = imesa->HwVertexSize;
+ u_int32_t *vb = savageAllocVtxBuf (imesa, 6*vertsize);
+ GLfloat width = imesa->glCtx->Line._Width;
+ GLfloat dx, dy, ix, iy;
+ savageVertex tmp0, tmp1;
+ GLuint j;
+
+ PTEX_VERTEX (j, tmp0, vertsize, 2, v0);
+ PTEX_VERTEX (j, tmp1, vertsize, 2, v1);
+
+ dx = v0->v.x - v1->v.x;
+ dy = v0->v.y - v1->v.y;
+
+ ix = width * .5; iy = 0;
+ if (dx * dx > dy * dy) {
+ iy = ix; ix = 0;
+ }
+
+ *(float *)&vb[0] = v0->v.x - ix;
+ *(float *)&vb[1] = v0->v.y - iy;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp0);
+
+ *(float *)&vb[0] = v1->v.x + ix;
+ *(float *)&vb[1] = v1->v.y + iy;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp1);
+
+ *(float *)&vb[0] = v0->v.x + ix;
+ *(float *)&vb[1] = v0->v.y + iy;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp0);
+
+ *(float *)&vb[0] = v0->v.x - ix;
+ *(float *)&vb[1] = v0->v.y - iy;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp0);
+
+ *(float *)&vb[0] = v1->v.x - ix;
+ *(float *)&vb[1] = v1->v.y - iy;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp1);
+
+ *(float *)&vb[0] = v1->v.x + ix;
+ *(float *)&vb[1] = v1->v.y + iy;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp1);
+}
+
+static __inline__ void savage_ptex_point (savageContextPtr imesa,
+ savageVertexPtr v0) {
+ GLuint vertsize = imesa->HwVertexSize;
+ u_int32_t *vb = savageAllocVtxBuf (imesa, 6*vertsize);
+ const GLfloat x = v0->v.x;
+ const GLfloat y = v0->v.y;
+ const GLfloat sz = imesa->glCtx->Point._Size * .5;
+ savageVertex tmp;
+ GLuint j;
+
+ PTEX_VERTEX (j, tmp, vertsize, 2, v0);
+
+ *(float *)&vb[0] = x - sz;
+ *(float *)&vb[1] = y - sz;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp);
+
+ *(float *)&vb[0] = x + sz;
+ *(float *)&vb[1] = y - sz;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp);
+
+ *(float *)&vb[0] = x + sz;
+ *(float *)&vb[1] = y + sz;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp);
+
+ *(float *)&vb[0] = x + sz;
+ *(float *)&vb[1] = y + sz;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp);
+
+ *(float *)&vb[0] = x - sz;
+ *(float *)&vb[1] = y + sz;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp);
+
+ *(float *)&vb[0] = x - sz;
+ *(float *)&vb[1] = y - sz;
+ EMIT_VERT (j, vb, vertsize, 2, &tmp);
+}
+
+/***********************************************************************
+ * Macros for t_dd_tritmp.h to draw basic primitives *
+ ***********************************************************************/
+
+#define TRI( a, b, c ) \
+do { \
+ if (DO_FALLBACK) \
+ imesa->draw_tri( imesa, a, b, c ); \
+ else \
+ savage_draw_triangle( imesa, a, b, c ); \
+} while (0)
+
+#define QUAD( a, b, c, d ) \
+do { \
+ if (DO_FALLBACK) { \
+ imesa->draw_tri( imesa, a, b, d ); \
+ imesa->draw_tri( imesa, b, c, d ); \
+ } else \
+ savage_draw_quad( imesa, a, b, c, d ); \
+} while (0)
+
+#define LINE( v0, v1 ) \
+do { \
+ if (DO_FALLBACK) \
+ imesa->draw_line( imesa, v0, v1 ); \
+ else \
+ savage_draw_line( imesa, v0, v1 ); \
+} while (0)
+
+#define POINT( v0 ) \
+do { \
+ if (DO_FALLBACK) \
+ imesa->draw_point( imesa, v0 ); \
+ else \
+ savage_draw_point( imesa, v0 ); \
+} while (0)
+
+
+/***********************************************************************
+ * Build render functions from dd templates *
+ ***********************************************************************/
+
+#define SAVAGE_OFFSET_BIT 0x1
+#define SAVAGE_TWOSIDE_BIT 0x2
+#define SAVAGE_UNFILLED_BIT 0x4
+#define SAVAGE_FALLBACK_BIT 0x8
+#define SAVAGE_MAX_TRIFUNC 0x10
+
+
+static struct {
+ tnl_points_func points;
+ tnl_line_func line;
+ tnl_triangle_func triangle;
+ tnl_quad_func quad;
+} rast_tab[SAVAGE_MAX_TRIFUNC];
+
+
+#define DO_FALLBACK (IND & SAVAGE_FALLBACK_BIT)
+#define DO_OFFSET (IND & SAVAGE_OFFSET_BIT)
+#define DO_UNFILLED (IND & SAVAGE_UNFILLED_BIT)
+#define DO_TWOSIDE (IND & SAVAGE_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 savageVertex
+#define TAB rast_tab
+
+#define DEPTH_SCALE imesa->depth_scale
+#define REVERSE_DEPTH 1
+#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_size * sizeof(int)))
+
+#define VERT_SET_RGBA( v, c ) \
+do { \
+ savage_color_t *color = (savage_color_t *)&((v)->ub4[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_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 ) \
+do { \
+ if (specoffset) { \
+ savage_color_t *spec = (savage_color_t *)&((v)->ub4[specoffset]); \
+ UNCLAMPED_FLOAT_TO_UBYTE(spec->red, (c)[0]); \
+ UNCLAMPED_FLOAT_TO_UBYTE(spec->green, (c)[1]); \
+ UNCLAMPED_FLOAT_TO_UBYTE(spec->blue, (c)[2]); \
+ } \
+} while (0)
+#define VERT_COPY_SPEC( v0, v1 ) \
+ if (specoffset) COPY_3V(v0->ub4[specoffset], v1->ub4[specoffset])
+#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]
+
+#define LOCAL_VARS(n) \
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \
+ GLuint color[n], spec[n]; \
+ GLuint coloroffset = \
+ ((imesa->skip & SAVAGE_SKIP_W) ? 3 : 4); \
+ GLboolean specoffset = \
+ ((imesa->skip & SAVAGE_SKIP_C1) ? 0 : coloroffset+1); \
+ (void) color; (void) spec; (void) coloroffset; (void) specoffset;
+
+/***********************************************************************
+ * Helpers for rendering unfilled primitives *
+ ***********************************************************************/
+
+#define RASTERIZE(x) if (imesa->raster_primitive != reduced_prim[x]) \
+ savageRasterPrimitive( ctx, x )
+#define RENDER_PRIMITIVE imesa->render_primitive
+#define IND SAVAGE_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 (SAVAGE_OFFSET_BIT)
+#define TAG(x) x##_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT|SAVAGE_OFFSET_BIT)
+#define TAG(x) x##_twoside_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_OFFSET_BIT|SAVAGE_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT|SAVAGE_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT|SAVAGE_OFFSET_BIT|SAVAGE_UNFILLED_BIT)
+#define TAG(x) x##_twoside_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_FALLBACK_BIT)
+#define TAG(x) x##_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_OFFSET_BIT|SAVAGE_FALLBACK_BIT)
+#define TAG(x) x##_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT|SAVAGE_FALLBACK_BIT)
+#define TAG(x) x##_twoside_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT|SAVAGE_OFFSET_BIT|SAVAGE_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_UNFILLED_BIT|SAVAGE_FALLBACK_BIT)
+#define TAG(x) x##_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_OFFSET_BIT|SAVAGE_UNFILLED_BIT|SAVAGE_FALLBACK_BIT)
+#define TAG(x) x##_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT|SAVAGE_UNFILLED_BIT|SAVAGE_FALLBACK_BIT)
+#define TAG(x) x##_twoside_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (SAVAGE_TWOSIDE_BIT|SAVAGE_OFFSET_BIT|SAVAGE_UNFILLED_BIT| \
+ SAVAGE_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
+savage_fallback_tri( savageContextPtr imesa,
+ savageVertexPtr v0,
+ savageVertexPtr v1,
+ savageVertexPtr v2 )
+{
+ GLcontext *ctx = imesa->glCtx;
+ SWvertex v[3];
+ FLUSH_BATCH(imesa);
+ WAIT_IDLE_EMPTY(imesa);
+ _swsetup_Translate( ctx, v0, &v[0] );
+ _swsetup_Translate( ctx, v1, &v[1] );
+ _swsetup_Translate( ctx, v2, &v[2] );
+ _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
+}
+
+
+static void
+savage_fallback_line( savageContextPtr imesa,
+ savageVertexPtr v0,
+ savageVertexPtr v1 )
+{
+ GLcontext *ctx = imesa->glCtx;
+ SWvertex v[2];
+ FLUSH_BATCH(imesa);
+ WAIT_IDLE_EMPTY(imesa);
+ _swsetup_Translate( ctx, v0, &v[0] );
+ _swsetup_Translate( ctx, v1, &v[1] );
+ _swrast_Line( ctx, &v[0], &v[1] );
+}
+
+
+static void
+savage_fallback_point( savageContextPtr imesa,
+ savageVertexPtr v0 )
+{
+ GLcontext *ctx = imesa->glCtx;
+ SWvertex v[1];
+ FLUSH_BATCH(imesa);
+ WAIT_IDLE_EMPTY(imesa);
+ _swsetup_Translate( ctx, v0, &v[0] );
+ _swrast_Point( ctx, &v[0] );
+}
+
+
+
+/**********************************************************************/
+/* Render unclipped begin/end objects */
+/**********************************************************************/
+
+#define VERT(x) (savageVertexPtr)(savageVerts + (x * vertsize * sizeof(int)))
+#define RENDER_POINTS( start, count ) \
+ for ( ; start < count ; start++) \
+ savage_draw_point( imesa, VERT(start) )
+#define RENDER_LINE( v0, v1 ) \
+ savage_draw_line( imesa, VERT(v0), VERT(v1) )
+#define RENDER_TRI( v0, v1, v2 ) \
+ savage_draw_triangle( imesa, VERT(v0), VERT(v1), VERT(v2) )
+#define RENDER_QUAD( v0, v1, v2, v3 ) \
+ savage_draw_quad( imesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
+#define INIT(x) do { \
+ if (0) fprintf(stderr, "%s\n", __FUNCTION__); \
+ savageRenderPrimitive( ctx, x ); \
+ /*SAVAGE_CONTEXT(ctx)->render_primitive = x;*/ \
+} while (0)
+#undef LOCAL_VARS
+#define LOCAL_VARS \
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \
+ const GLuint vertsize = imesa->vertex_size; \
+ const char *savageVerts = (char *)imesa->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) savage_##x##_verts
+#include "tnl/t_vb_rendertmp.h"
+#undef ELT
+#undef TAG
+#define TAG(x) savage_##x##_elts
+#define ELT(x) elt[x]
+#include "tnl/t_vb_rendertmp.h"
+
+
+/**********************************************************************/
+/* Render clipped primitives */
+/**********************************************************************/
+
+static void savageRenderClippedPoly( 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 savageRenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl->Driver.Render.Line( ctx, ii, jj );
+}
+/*
+static void savageFastRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
+ GLuint n )
+{
+ r128ContextPtr rmesa = R128_CONTEXT( ctx );
+ GLuint vertsize = rmesa->vertex_size;
+ GLuint *vb = r128AllocDmaLow( rmesa, (n-2) * 3 * 4 * vertsize );
+ GLubyte *r128verts = (GLubyte *)rmesa->verts;
+ const GLuint shift = rmesa->vertex_stride_shift;
+ const GLuint *start = (const GLuint *)VERT(elts[0]);
+ int i,j;
+
+ rmesa->num_verts += (n-2) * 3;
+
+ for (i = 2 ; i < n ; i++) {
+ COPY_DWORDS( j, vb, vertsize, (r128VertexPtr) start );
+ COPY_DWORDS( j, vb, vertsize, (r128VertexPtr) VERT(elts[i-1]) );
+ COPY_DWORDS( j, vb, vertsize, (r128VertexPtr) VERT(elts[i]) );
+ }
+}
+*/
+
+
+
+/**********************************************************************/
+/* Choose render functions */
+/**********************************************************************/
+
+#define _SAVAGE_NEW_RENDER_STATE (_DD_NEW_LINE_STIPPLE | \
+ _DD_NEW_LINE_SMOOTH | \
+ _DD_NEW_POINT_SMOOTH | \
+ _DD_NEW_TRI_STIPPLE | \
+ _DD_NEW_TRI_SMOOTH | \
+ _DD_NEW_TRI_UNFILLED | \
+ _DD_NEW_TRI_LIGHT_TWOSIDE | \
+ _DD_NEW_TRI_OFFSET) \
+
+/* original driver didn't have DD_POINT_SMOOTH. really needed? */
+#define POINT_FALLBACK (DD_POINT_SMOOTH)
+#define LINE_FALLBACK (DD_LINE_STIPPLE|DD_LINE_SMOOTH)
+#define TRI_FALLBACK (DD_TRI_STIPPLE|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 savageChooseRenderState(GLcontext *ctx)
+{
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+ GLuint flags = ctx->_TriangleCaps;
+ GLuint index = 0;
+
+ /* Hook in fallback functions for the ptex hack. Do this first, so
+ * that a real fallback will overwrite them with the respective
+ * savage_fallback_... function.
+ */
+ if (imesa->ptexHack) {
+ /* Do textures make sense with points? */
+ imesa->draw_point = savage_ptex_point;
+ imesa->draw_line = savage_ptex_line;
+ imesa->draw_tri = savage_ptex_tri;
+ index |= SAVAGE_FALLBACK_BIT;
+ } else {
+ imesa->draw_point = savage_draw_point;
+ imesa->draw_line = savage_draw_line;
+ imesa->draw_tri = savage_draw_triangle;
+ }
+
+ if (flags & (ANY_RASTER_FLAGS|ANY_FALLBACK_FLAGS)) {
+ if (flags & ANY_RASTER_FLAGS) {
+ if (flags & DD_TRI_LIGHT_TWOSIDE) index |= SAVAGE_TWOSIDE_BIT;
+ if (flags & DD_TRI_OFFSET) index |= SAVAGE_OFFSET_BIT;
+ if (flags & DD_TRI_UNFILLED) index |= SAVAGE_UNFILLED_BIT;
+ }
+
+ /* Hook in fallbacks for specific primitives.
+ */
+ if (flags & ANY_FALLBACK_FLAGS) {
+ if (flags & POINT_FALLBACK) imesa->draw_point = savage_fallback_point;
+ if (flags & LINE_FALLBACK) imesa->draw_line = savage_fallback_line;
+ if (flags & TRI_FALLBACK) imesa->draw_tri = savage_fallback_tri;
+ index |= SAVAGE_FALLBACK_BIT;
+ if (SAVAGE_DEBUG & DEBUG_FALLBACKS) {
+ fprintf (stderr, "Per-primitive fallback, TriangleCaps=0x%x\n",
+ ctx->_TriangleCaps);
+ }
+ }
+ }
+
+ if (index != imesa->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 = savage_render_tab_verts;
+ tnl->Driver.Render.PrimTabElts = savage_render_tab_elts;
+ tnl->Driver.Render.ClippedLine = rast_tab[index].line;
+ tnl->Driver.Render.ClippedPolygon = savageRenderClippedPoly/*r128FastRenderClippedPoly*/;
+ } else {
+ tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+ tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+ tnl->Driver.Render.ClippedLine = savageRenderClippedLine;
+ tnl->Driver.Render.ClippedPolygon = savageRenderClippedPoly;
+ }
+
+ imesa->RenderIndex = index;
+ }
+}
+
+/**********************************************************************/
+/* Validate state at pipeline start */
+/**********************************************************************/
+
+static void savageRunPipeline( GLcontext *ctx )
+{
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+
+ if (imesa->no_rast)
+ FALLBACK(ctx, SAVAGE_FALLBACK_NORAST, GL_TRUE);
+
+ if (imesa->new_state)
+ savageDDUpdateHwState( ctx );
+
+ if (!imesa->Fallback) {
+ if (imesa->new_gl_state & _SAVAGE_NEW_RENDER_STATE)
+ savageChooseRenderState( ctx );
+
+ /* choose the correct primitive type for tnl rendering */
+ if (imesa->savageScreen->chipset < S3_SAVAGE4 &&
+ (ctx->_TriangleCaps & DD_FLATSHADE)) {
+ if (imesa->HwPrim != SAVAGE_PRIM_TRILIST_201)
+ savageFlushVertices(imesa);
+ imesa->HwPrim = SAVAGE_PRIM_TRILIST_201;
+ } else {
+ if (imesa->HwPrim != SAVAGE_PRIM_TRILIST)
+ savageFlushVertices(imesa);
+ imesa->HwPrim = SAVAGE_PRIM_TRILIST;
+ }
+
+ imesa->new_gl_state = 0;
+ }
+
+ _tnl_run_pipeline( ctx );
+
+ if (imesa->no_rast)
+ FALLBACK(ctx, SAVAGE_FALLBACK_NORAST, GL_FALSE);
+}
+
+/**********************************************************************/
+/* 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.
+ *
+ * As the r128 uses triangles to render lines and points, it is
+ * necessary to turn off hardware culling when rendering these
+ * primitives.
+ */
+
+static void savageRasterPrimitive( GLcontext *ctx, GLuint prim )
+{
+ savageContextPtr imesa = SAVAGE_CONTEXT( ctx );
+
+ /* Update culling */
+ if (imesa->raster_primitive != prim) {
+ imesa->raster_primitive = prim;
+ imesa->new_state |= SAVAGE_NEW_CULL;
+ savageDDUpdateHwState (ctx);
+ }
+
+#if 0
+ if (ctx->Polygon.StippleFlag && mmesa->haveHwStipple)
+ {
+ mmesa->dirty |= MGA_UPLOAD_CONTEXT;
+ mmesa->setup.dwgctl &= ~(0xf<<20);
+ if (mmesa->raster_primitive == GL_TRIANGLES)
+ mmesa->setup.dwgctl |= mmesa->poly_stipple;
+ }
+#endif
+}
+
+static void savageRenderPrimitive( GLcontext *ctx, GLenum prim )
+{
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+ GLuint rprim = reduced_prim[prim];
+
+ imesa->render_primitive = prim;
+
+ if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
+ return;
+
+ if (imesa->raster_primitive != rprim) {
+ savageRasterPrimitive( ctx, rprim );
+ }
+}
+
+/* Check if projective texture coordinates are used and if we can fake
+ * them. Fallback to swrast we can't. Returns GL_TRUE if projective
+ * texture coordinates must be faked, GL_FALSE otherwise.
+ */
+static GLboolean savageCheckPTexHack( GLcontext *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+ GLuint index = tnl->render_inputs;
+
+ if (index & _TNL_BIT_TEX(0) && VB->TexCoordPtr[0]->size == 4) {
+ if ((index & _TNL_BITS_TEX_ANY) == _TNL_BIT_TEX(0))
+ return GL_TRUE; /* apply ptex hack */
+ else
+ FALLBACK(ctx, SAVAGE_FALLBACK_PROJ_TEXTURE, GL_TRUE);
+ }
+ if ((index & _TNL_BIT_TEX(1)) && VB->TexCoordPtr[1]->size == 4)
+ FALLBACK(ctx, SAVAGE_FALLBACK_PROJ_TEXTURE, GL_TRUE);
+
+ return GL_FALSE; /* don't apply ptex hack */
+}
+
+
+#define DO_EMIT_ATTR( ATTR, STYLE ) \
+do { \
+ imesa->vertex_attrs[imesa->vertex_attr_count].attrib = (ATTR); \
+ imesa->vertex_attrs[imesa->vertex_attr_count].format = (STYLE); \
+ imesa->vertex_attr_count++; \
+} while (0)
+
+#define NEED_ATTR( INDEX, SKIP ) \
+do { \
+ setupIndex |= (INDEX); \
+ skip &= ~(SKIP); \
+} while (0)
+
+#define EMIT_ATTR( ATTR, STYLE, INDEX, SKIP ) \
+do { \
+ NEED_ATTR( INDEX, SKIP ); \
+ DO_EMIT_ATTR( ATTR, STYLE ); \
+} while (0)
+
+#define EMIT_PAD( N ) \
+do { \
+ imesa->vertex_attrs[imesa->vertex_attr_count].attrib = 0; \
+ imesa->vertex_attrs[imesa->vertex_attr_count].format = EMIT_PAD; \
+ imesa->vertex_attrs[imesa->vertex_attr_count].offset = (N); \
+ imesa->vertex_attr_count++; \
+} while (0)
+
+#define SAVAGE_EMIT_XYZ 0x0001
+#define SAVAGE_EMIT_W 0x0002
+#define SAVAGE_EMIT_C0 0x0004
+#define SAVAGE_EMIT_C1 0x0008
+#define SAVAGE_EMIT_FOG 0x0010
+#define SAVAGE_EMIT_S0 0x0020
+#define SAVAGE_EMIT_T0 0x0040
+#define SAVAGE_EMIT_Q0 0x0080
+#define SAVAGE_EMIT_ST0 0x0060
+#define SAVAGE_EMIT_STQ0 0x00e0
+#define SAVAGE_EMIT_S1 0x0100
+#define SAVAGE_EMIT_T1 0x0200
+#define SAVAGE_EMIT_ST1 0x0300
+
+
+static __inline__ GLuint savageChooseVertexFormat_s3d( GLcontext *ctx )
+{
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+ GLuint index = tnl->render_inputs;
+ GLuint setupIndex = SAVAGE_EMIT_XYZ;
+ GLubyte skip;
+
+ imesa->vertex_attr_count = 0;
+
+ skip = SAVAGE_SKIP_ALL_S3D;
+ skip &= ~SAVAGE_SKIP_Z; /* all mesa vertices have a z coordinate */
+
+ /* EMIT_ATTR's must be in order as they tell t_vertex.c how to
+ * build up a hardware vertex.
+ */
+ if ((index & _TNL_BITS_TEX_ANY) || !(ctx->_TriangleCaps & DD_FLATSHADE))
+ EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, SAVAGE_EMIT_W, SAVAGE_SKIP_W );
+ else {
+ EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, 0, 0 );
+ EMIT_PAD( 4 );
+ skip &= ~SAVAGE_SKIP_W;
+ }
+
+ /* t_context.c always includes a diffuse color */
+ EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, SAVAGE_EMIT_C0, SAVAGE_SKIP_C0 );
+
+ if ((index & _TNL_BIT_COLOR1))
+ EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, SAVAGE_EMIT_C1, SAVAGE_SKIP_C1 );
+ else
+ EMIT_PAD( 3 );
+ if ((index & _TNL_BIT_FOG))
+ EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, SAVAGE_EMIT_FOG, SAVAGE_SKIP_C1 );
+ else
+ EMIT_PAD( 1 );
+ skip &= ~SAVAGE_SKIP_C1;
+
+ if (index & _TNL_BIT_TEX(0)) {
+ if (imesa->ptexHack)
+ EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_3F_XYW, SAVAGE_EMIT_STQ0, SAVAGE_SKIP_ST0);
+ else if (VB->TexCoordPtr[0]->size == 4)
+ assert (0); /* should be caught by savageCheckPTexHack */
+ else if (VB->TexCoordPtr[0]->size >= 2)
+ /* The chromium menu emits some 3D tex coords even though no
+ * 3D texture is enabled. Ignore the 3rd coordinate. */
+ EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_2F, SAVAGE_EMIT_ST0, SAVAGE_SKIP_ST0 );
+ else if (VB->TexCoordPtr[0]->size == 1) {
+ EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_1F, SAVAGE_EMIT_S0, SAVAGE_SKIP_S0 );
+ EMIT_PAD( 4 );
+ } else
+ EMIT_PAD( 8 );
+ } else
+ EMIT_PAD( 8 );
+ skip &= ~SAVAGE_SKIP_ST0;
+
+ assert (skip == 0);
+ imesa->skip = skip;
+ return setupIndex;
+}
+
+
+static __inline__ GLuint savageChooseVertexFormat_s4( GLcontext *ctx )
+{
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+ GLuint index = tnl->render_inputs;
+ GLuint setupIndex = SAVAGE_EMIT_XYZ;
+ GLubyte skip;
+ GLuint size, mask;
+
+ skip = SAVAGE_SKIP_ALL_S4;
+ skip &= ~SAVAGE_SKIP_Z; /* all mesa vertices have a z coordinate */
+
+ if ((index & _TNL_BITS_TEX_ANY) || !(ctx->_TriangleCaps & DD_FLATSHADE))
+ NEED_ATTR( SAVAGE_EMIT_W, SAVAGE_SKIP_W );
+
+ /* t_context.c always includes a diffuse color */
+ NEED_ATTR( SAVAGE_EMIT_C0, SAVAGE_SKIP_C0 );
+
+ if (index & (_TNL_BIT_COLOR1|_TNL_BIT_FOG)) {
+ if ((index & _TNL_BIT_COLOR1))
+ NEED_ATTR( SAVAGE_EMIT_C1, SAVAGE_SKIP_C1 );
+ if ((index & _TNL_BIT_FOG))
+ NEED_ATTR( SAVAGE_EMIT_FOG, SAVAGE_SKIP_C1 );
+ }
+
+ if (index & _TNL_BIT_TEX(0)) {
+ if (imesa->ptexHack)
+ NEED_ATTR( SAVAGE_EMIT_STQ0, SAVAGE_SKIP_ST0);
+ else if (VB->TexCoordPtr[0]->size == 4)
+ assert (0); /* should be caught by savageCheckPTexHack */
+ else if (VB->TexCoordPtr[0]->size >= 2)
+ /* The chromium menu emits some 3D tex coords even though no
+ * 3D texture is enabled. Ignore the 3rd coordinate. */
+ NEED_ATTR( SAVAGE_EMIT_ST0, SAVAGE_SKIP_ST0 );
+ else
+ NEED_ATTR( SAVAGE_EMIT_S0, SAVAGE_SKIP_S0 );
+ }
+ if (index & _TNL_BIT_TEX(1)) {
+ if (VB->TexCoordPtr[1]->size == 4)
+ /* projective textures are not supported by the hardware */
+ assert (0); /* should be caught by savageCheckPTexHack */
+ else if (VB->TexCoordPtr[1]->size >= 2)
+ NEED_ATTR( SAVAGE_EMIT_ST1, SAVAGE_SKIP_ST1 );
+ else
+ NEED_ATTR( SAVAGE_EMIT_S1, SAVAGE_SKIP_S1 );
+ }
+
+ /* if nothing changed we can skip the rest */
+ if (setupIndex == imesa->SetupIndex && imesa->vertex_size != 0)
+ return setupIndex;
+
+ if (imesa->enable_vdma) {
+ mask = SAVAGE_SKIP_W;
+ size = 10 - (skip & 1) - (skip >> 1 & 1) -
+ (skip >> 2 & 1) - (skip >> 3 & 1) - (skip >> 4 & 1) -
+ (skip >> 5 & 1) - (skip >> 6 & 1) - (skip >> 7 & 1);
+
+ while (size < 8) {
+ if (skip & mask) {
+ skip &= ~mask;
+ size++;
+ }
+ mask <<= 1;
+ }
+ }
+
+ imesa->vertex_attr_count = 0;
+
+ if (skip & SAVAGE_SKIP_W)
+ DO_EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT );
+ else if (setupIndex & SAVAGE_EMIT_W)
+ DO_EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT );
+ else {
+ DO_EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT );
+ EMIT_PAD( 4 );
+ }
+
+ DO_EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA );
+
+ if (!(skip & SAVAGE_SKIP_C1)) {
+ if (!(setupIndex & (SAVAGE_EMIT_C1|SAVAGE_EMIT_FOG)))
+ EMIT_PAD( 4 );
+ else {
+ if (setupIndex & SAVAGE_EMIT_C1)
+ DO_EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR );
+ else
+ EMIT_PAD( 3 );
+ if (setupIndex & SAVAGE_EMIT_FOG)
+ DO_EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F );
+ else
+ EMIT_PAD( 1 );
+ }
+ }
+
+ if ((skip & SAVAGE_SKIP_ST0) != SAVAGE_SKIP_ST0) {
+ if ((setupIndex & SAVAGE_EMIT_STQ0) == SAVAGE_EMIT_STQ0)
+ DO_EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_3F_XYW );
+ else if ((setupIndex & SAVAGE_EMIT_ST0) == SAVAGE_EMIT_ST0)
+ DO_EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_2F );
+ else if ((setupIndex & SAVAGE_EMIT_ST0) == SAVAGE_EMIT_S0) {
+ DO_EMIT_ATTR( _TNL_ATTRIB_TEX0, EMIT_1F );
+ if (!(skip & SAVAGE_SKIP_T0)) EMIT_PAD( 4 );
+ } else {
+ if (!(skip & SAVAGE_SKIP_S0)) EMIT_PAD( 4 );
+ if (!(skip & SAVAGE_SKIP_T0)) EMIT_PAD( 4 );
+ }
+ }
+
+ if ((skip & SAVAGE_SKIP_ST1) != SAVAGE_SKIP_ST1) {
+ if ((setupIndex & SAVAGE_EMIT_ST1) == SAVAGE_EMIT_ST1)
+ DO_EMIT_ATTR( _TNL_ATTRIB_TEX1, EMIT_2F );
+ else if ((setupIndex & SAVAGE_EMIT_ST1) == SAVAGE_EMIT_S1) {
+ DO_EMIT_ATTR( _TNL_ATTRIB_TEX1, EMIT_1F );
+ if (!(skip & SAVAGE_SKIP_T1)) EMIT_PAD( 4 );
+ } else {
+ if (!(skip & SAVAGE_SKIP_S1)) EMIT_PAD( 4 );
+ if (!(skip & SAVAGE_SKIP_T1)) EMIT_PAD( 4 );
+ }
+ }
+
+ imesa->skip = skip;
+ return setupIndex;
+}
+
+
+static void savageRenderStart( GLcontext *ctx )
+{
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+ GLuint setupIndex = SAVAGE_EMIT_XYZ;
+ GLboolean ptexHack;
+
+ /* Check if we need to apply the ptex hack. Choose a new render
+ * state if necessary. (Note: this can't be done in
+ * savageRunPipeline, since the number of vertex coordinates can
+ * change in the pipeline. texmat or texgen or both?) */
+ ptexHack = savageCheckPTexHack( ctx );
+ if (ptexHack != imesa->ptexHack) {
+ imesa->ptexHack = ptexHack;
+ savageChooseRenderState (ctx);
+ }
+ /* Handle fallback cases identified in savageCheckPTexHack. */
+ if (SAVAGE_CONTEXT(ctx)->Fallback) {
+ tnl->Driver.Render.Start(ctx);
+ return;
+ }
+
+ /* Important:
+ */
+ VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
+
+ if (imesa->savageScreen->chipset < S3_SAVAGE4) {
+ setupIndex = savageChooseVertexFormat_s3d(ctx);
+ } else {
+ setupIndex = savageChooseVertexFormat_s4(ctx);
+ }
+
+ /* Need to change the vertex emit code if the SetupIndex changed or
+ * is set for the first time (indicated by vertex_size == 0). */
+ if (setupIndex != imesa->SetupIndex || imesa->vertex_size == 0) {
+ GLuint hwVertexSize;
+ imesa->vertex_size =
+ _tnl_install_attrs( ctx,
+ imesa->vertex_attrs,
+ imesa->vertex_attr_count,
+ imesa->hw_viewport, 0 );
+ imesa->vertex_size >>= 2;
+ imesa->SetupIndex = setupIndex;
+
+ hwVertexSize = imesa->vertex_size;
+ if (setupIndex & SAVAGE_EMIT_Q0) {
+ /* The vertex setup code emits homogenous texture
+ * coordinates. They are converted to normal 2D coords by
+ * savage_ptex_tri/line/point. Now we have two different
+ * vertex sizes. Functions that emit vertices to the hardware
+ * need to use HwVertexSize, anything that manipulates the
+ * vertices generated by t_vertex uses vertex_size. */
+ hwVertexSize--;
+ assert (imesa->ptexHack);
+ } else
+ assert (!imesa->ptexHack);
+
+ if (hwVertexSize != imesa->HwVertexSize) {
+ /* Changing the vertex size: flush vertex and command buffer and
+ * discard the DMA buffer, if we were using one. */
+ savageFlushVertices(imesa);
+ savageFlushCmdBuf(imesa, GL_TRUE);
+ if (hwVertexSize == 8 && imesa->enable_vdma) {
+ if (SAVAGE_DEBUG & DEBUG_DMA)
+ fprintf (stderr, "Using DMA, skip=0x%02x\n", imesa->skip);
+ /* we can use vertex dma */
+ imesa->vtxBuf = &imesa->dmaVtxBuf;
+ } else {
+ if (SAVAGE_DEBUG & DEBUG_DMA)
+ fprintf (stderr, "Not using DMA, skip=0x%02x\n", imesa->skip);
+ imesa->vtxBuf = &imesa->clientVtxBuf;
+ }
+ imesa->HwVertexSize = hwVertexSize;
+ }
+ }
+}
+
+static void savageRenderFinish( GLcontext *ctx )
+{
+ /* Flush the last primitive now, before any state is changed. */
+ savageFlushVertices(SAVAGE_CONTEXT(ctx));
+
+ if (SAVAGE_CONTEXT(ctx)->RenderIndex & SAVAGE_FALLBACK_BIT)
+ _swrast_flush( ctx );
+}
+
+
+/**********************************************************************/
+/* Transition to/from hardware rasterization. */
+/**********************************************************************/
+
+static const char * const fallbackStrings[] = {
+ "Texture mode",
+ "Draw buffer",
+ "Read buffer",
+ "Color mask",
+ "Specular",
+ "LogicOp",
+ "glEnable(GL_STENCIL) without hw stencil buffer",
+ "glRenderMode(selection or feedback)",
+ "glBlendEquation",
+ "Hardware rasterization disabled",
+ "Projective texture",
+};
+
+void savageFallback( GLcontext *ctx, GLuint bit, GLboolean mode )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+ GLuint oldfallback = imesa->Fallback;
+ GLuint index;
+ for (index = 0; (1 << index) < bit; ++index);
+
+ if (mode) {
+ imesa->Fallback |= bit;
+ if (oldfallback == 0) {
+ /* the first fallback */
+ _swsetup_Wakeup( ctx );
+ imesa->RenderIndex = ~0;
+ }
+ if (!(oldfallback & bit) && (SAVAGE_DEBUG & DEBUG_FALLBACKS))
+ fprintf (stderr, "Savage begin fallback: 0x%x %s\n",
+ bit, fallbackStrings[index]);
+ }
+ else {
+ imesa->Fallback &= ~bit;
+ if (oldfallback == bit) {
+ /* the last fallback */
+ _swrast_flush( ctx );
+ tnl->Driver.Render.Start = savageRenderStart;
+ tnl->Driver.Render.PrimitiveNotify = savageRenderPrimitive;
+ tnl->Driver.Render.Finish = savageRenderFinish;
+
+ tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
+ tnl->Driver.Render.CopyPV = _tnl_copy_pv;
+ tnl->Driver.Render.Interp = _tnl_interp;
+
+ _tnl_invalidate_vertex_state( ctx, ~0 );
+ _tnl_invalidate_vertices( ctx, ~0 );
+ _tnl_install_attrs( ctx,
+ imesa->vertex_attrs,
+ imesa->vertex_attr_count,
+ imesa->hw_viewport, 0 );
+
+ imesa->new_gl_state |= _SAVAGE_NEW_RENDER_STATE;
+ }
+ if ((oldfallback & bit) && (SAVAGE_DEBUG & DEBUG_FALLBACKS))
+ fprintf (stderr, "Savage end fallback: 0x%x %s\n",
+ bit, fallbackStrings[index]);
+ }
+}
+
+
+/**********************************************************************/
+/* Initialization. */
+/**********************************************************************/
+
+void savageInitTriFuncs( GLcontext *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ static int firsttime = 1;
+
+ if (firsttime) {
+ init_rast_tab();
+ firsttime = 0;
+ }
+
+ tnl->Driver.RunPipeline = savageRunPipeline;
+ tnl->Driver.Render.Start = savageRenderStart;
+ tnl->Driver.Render.Finish = savageRenderFinish;
+ tnl->Driver.Render.PrimitiveNotify = savageRenderPrimitive;
+ tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple;
+
+ tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
+ tnl->Driver.Render.CopyPV = _tnl_copy_pv;
+ tnl->Driver.Render.Interp = _tnl_interp;
+
+ _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12,
+ (6 + 2*ctx->Const.MaxTextureUnits) * sizeof(GLfloat) );
+
+ SAVAGE_CONTEXT(ctx)->verts = (char *)tnl->clipspace.vertex_buf;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-12 06:06:06 +0000