#include "glheader.h"
#include "mtypes.h"
#include "macros.h"
#include "colormac.h"
#include "swrast/swrast.h"
#include "swrast_setup/swrast_setup.h"
#include "swrast_setup/ss_context.h"
#include "tnl/t_context.h"
#include "tnl/t_pipeline.h"
#include "tdfx_tris.h"
#include "tdfx_state.h"
#include "tdfx_vb.h"
#include "tdfx_lock.h"
#include "tdfx_render.h"
static void tdfxRasterPrimitive( GLcontext *ctx, GLenum prim );
static void tdfxRenderPrimitive( GLcontext *ctx, GLenum prim );
#define TRI( a, b, c ) \
do { \
if (DO_FALLBACK) \
fxMesa->draw_triangle( fxMesa, a, b, c ); \
else \
fxMesa->Glide.grDrawTriangle( a, b, c ); \
} while (0) \
#define QUAD( a, b, c, d ) \
do { \
if (DO_FALLBACK) { \
fxMesa->draw_triangle( fxMesa, a, b, d ); \
fxMesa->draw_triangle( fxMesa, b, c, d ); \
} else { \
fxMesa->Glide.grDrawTriangle( a, b, d ); \
fxMesa->Glide.grDrawTriangle( b, c, d ); \
} \
} while (0)
#define LINE( v0, v1 ) \
do { \
if (DO_FALLBACK) \
fxMesa->draw_line( fxMesa, v0, v1 ); \
else { \
v0->v.x += LINE_X_OFFSET - TRI_X_OFFSET; \
v0->v.y += LINE_Y_OFFSET - TRI_Y_OFFSET; \
v1->v.x += LINE_X_OFFSET - TRI_X_OFFSET; \
v1->v.y += LINE_Y_OFFSET - TRI_Y_OFFSET; \
fxMesa->Glide.grDrawLine( v0, v1 ); \
v0->v.x -= LINE_X_OFFSET - TRI_X_OFFSET; \
v0->v.y -= LINE_Y_OFFSET - TRI_Y_OFFSET; \
v1->v.x -= LINE_X_OFFSET - TRI_X_OFFSET; \
v1->v.y -= LINE_Y_OFFSET - TRI_Y_OFFSET; \
} \
} while (0)
#define POINT( v0 ) \
do { \
if (DO_FALLBACK) \
fxMesa->draw_point( fxMesa, v0 ); \
else { \
v0->v.x += PNT_X_OFFSET - TRI_X_OFFSET; \
v0->v.y += PNT_Y_OFFSET - TRI_Y_OFFSET; \
fxMesa->Glide.grDrawPoint( v0 ); \
v0->v.x -= PNT_X_OFFSET - TRI_X_OFFSET; \
v0->v.y -= PNT_Y_OFFSET - TRI_Y_OFFSET; \
} \
} while (0)
static void
tdfx_translate_vertex( GLcontext *ctx, const tdfxVertex *src, SWvertex *dst)
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
if (fxMesa->vertexFormat == TDFX_LAYOUT_TINY) {
dst->win[0] = src->tv.x - fxMesa->x_offset;
dst->win[1] = src->tv.y - (fxMesa->screen_height - fxMesa->height - fxMesa->y_offset);
dst->win[2] = src->tv.z;
dst->win[3] = 1.0;
dst->color[0] = src->tv.color.red;
dst->color[1] = src->tv.color.green;
dst->color[2] = src->tv.color.blue;
dst->color[3] = src->tv.color.alpha;
}
else {
GLfloat w = 1.0 / src->v.rhw;
dst->win[0] = src->v.x - fxMesa->x_offset;
dst->win[1] = fxMesa->screen_height - fxMesa->y_offset - src->v.y;
dst->win[2] = src->v.z;
dst->win[3] = src->v.rhw;
dst->color[0] = src->v.color.red;
dst->color[1] = src->v.color.green;
dst->color[2] = src->v.color.blue;
dst->color[3] = src->v.color.alpha;
if (fxMesa->vertexFormat == TDFX_LAYOUT_PROJECT) {
dst->texcoord[0][0] = fxMesa->sScale0 * w * src->pv.tu0;
dst->texcoord[0][1] = fxMesa->tScale0 * w * src->pv.tv0;
dst->texcoord[0][3] = w * src->pv.tq0;
if (fxMesa->SetupIndex & TDFX_TEX1_BIT) {
dst->texcoord[1][0] = fxMesa->sScale1 * w * src->pv.tu1;
dst->texcoord[1][1] = fxMesa->tScale1 * w * src->pv.tv1;
dst->texcoord[1][3] = w * src->pv.tq1;
}
} else if (fxMesa->SetupIndex & TDFX_TEX0_BIT) {
dst->texcoord[0][0] = fxMesa->sScale0 * w * src->v.tu0;
dst->texcoord[0][1] = fxMesa->tScale0 * w * src->v.tv0;
dst->texcoord[0][3] = 1.0;
if (fxMesa->SetupIndex & TDFX_TEX1_BIT) {
dst->texcoord[1][0] = fxMesa->sScale1 * w * src->v.tu1;
dst->texcoord[1][1] = fxMesa->tScale1 * w * src->v.tv1;
dst->texcoord[1][3] = 1.0;
}
}
}
dst->pointSize = ctx->Point._Size;
}
static void
tdfx_fallback_tri( tdfxContextPtr fxMesa,
tdfxVertex *v0,
tdfxVertex *v1,
tdfxVertex *v2 )
{
GLcontext *ctx = fxMesa->glCtx;
SWvertex v[3];
tdfx_translate_vertex( ctx, v0, &v[0] );
tdfx_translate_vertex( ctx, v1, &v[1] );
tdfx_translate_vertex( ctx, v2, &v[2] );
_swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
}
static void
tdfx_fallback_line( tdfxContextPtr fxMesa,
tdfxVertex *v0,
tdfxVertex *v1 )
{
GLcontext *ctx = fxMesa->glCtx;
SWvertex v[2];
tdfx_translate_vertex( ctx, v0, &v[0] );
tdfx_translate_vertex( ctx, v1, &v[1] );
_swrast_Line( ctx, &v[0], &v[1] );
}
static void
tdfx_fallback_point( tdfxContextPtr fxMesa,
tdfxVertex *v0 )
{
GLcontext *ctx = fxMesa->glCtx;
SWvertex v[1];
tdfx_translate_vertex( ctx, v0, &v[0] );
_swrast_Point( ctx, &v[0] );
}
static void tdfx_print_vertex( GLcontext *ctx, const tdfxVertex *v )
{
tdfxContextPtr imesa = TDFX_CONTEXT( ctx );
fprintf(stderr, "vertex at %p\n", (void *)v);
if (imesa->vertexFormat == TDFX_LAYOUT_TINY) {
fprintf(stderr, "x %f y %f z %f\n", v->v.x, v->v.y, v->v.z);
fprintf(stderr, "r %d g %d b %d a %d\n",
v->tv.color.red,
v->tv.color.green,
v->tv.color.blue,
v->tv.color.alpha);
}
else {
fprintf(stderr, "x %f y %f z %f oow %f\n",
v->v.x, v->v.y, v->v.z, v->v.rhw);
fprintf(stderr, "r %d g %d b %d a %d\n",
v->v.color.red,
v->v.color.green,
v->v.color.blue,
v->v.color.alpha);
}
fprintf(stderr, "\n");
}
#define DO_FALLBACK 0
static void tdfx_draw_quad( tdfxContextPtr fxMesa,
tdfxVertexPtr v0,
tdfxVertexPtr v1,
tdfxVertexPtr v2,
tdfxVertexPtr v3 )
{
BEGIN_CLIP_LOOP_LOCKED(fxMesa) {
QUAD( v0, v1, v2, v3 );
} END_CLIP_LOOP_LOCKED(fxMesa);
}
static void tdfx_draw_triangle( tdfxContextPtr fxMesa,
tdfxVertexPtr v0,
tdfxVertexPtr v1,
tdfxVertexPtr v2 )
{
BEGIN_CLIP_LOOP_LOCKED(fxMesa) {
TRI( v0, v1, v2 );
} END_CLIP_LOOP_LOCKED(fxMesa);
}
static void tdfx_draw_line( tdfxContextPtr fxMesa,
tdfxVertexPtr v0,
tdfxVertexPtr v1 )
{
BEGIN_CLIP_LOOP_LOCKED(fxMesa) {
LINE(v0, v1);
} END_CLIP_LOOP_LOCKED(fxMesa);
}
static void tdfx_draw_point( tdfxContextPtr fxMesa,
tdfxVertexPtr v0 )
{
BEGIN_CLIP_LOOP_LOCKED(fxMesa) {
POINT( v0 );
} END_CLIP_LOOP_LOCKED(fxMesa);
}
#undef DO_FALLBACK
#define TDFX_UNFILLED_BIT 0x1
#define TDFX_OFFSET_BIT 0x2
#define TDFX_TWOSIDE_BIT 0x4
#define TDFX_FLAT_BIT 0x8
#define TDFX_FALLBACK_BIT 0x10
#define TDFX_MAX_TRIFUNC 0x20
static struct {
points_func points;
line_func line;
triangle_func triangle;
quad_func quad;
} rast_tab[TDFX_MAX_TRIFUNC];
#define DO_FALLBACK (IND & TDFX_FALLBACK_BIT)
#define DO_OFFSET (IND & TDFX_OFFSET_BIT)
#define DO_UNFILLED (IND & TDFX_UNFILLED_BIT)
#define DO_TWOSIDE (IND & TDFX_TWOSIDE_BIT)
#define DO_FLAT (IND & TDFX_FLAT_BIT)
#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 0
#define HAVE_HW_FLATSHADE 0
#define HAVE_BACK_COLORS 0
#define VERTEX tdfxVertex
#define TAB rast_tab
#define TDFX_COLOR( dst, src ) \
do { \
dst[0] = src[2]; \
dst[1] = src[1]; \
dst[2] = src[0]; \
dst[3] = src[3]; \
} while (0)
#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) (fxMesa->verts + (e<<fxMesa->vertex_stride_shift))
#define VERT_SET_RGBA( v, c ) TDFX_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 LOCAL_VARS(n) \
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); \
GLuint coloroffset = (fxMesa->vertexFormat == \
TDFX_LAYOUT_TINY) ? 3 : 4; \
GLuint color[n]; \
(void) color; (void)coloroffset
#define RASTERIZE(x) if (fxMesa->raster_primitive != x) \
tdfxRasterPrimitive( ctx, x )
#define RENDER_PRIMITIVE fxMesa->render_primitive
#define IND TDFX_FALLBACK_BIT
#define TAG(x) x
#include "tnl_dd/t_dd_unfilled.h"
#undef IND
#define IND (0)
#define TAG(x) x
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT)
#define TAG(x) x##_offset
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT)
#define TAG(x) x##_twoside
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT)
#define TAG(x) x##_twoside_offset
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_UNFILLED_BIT)
#define TAG(x) x##_unfilled
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT)
#define TAG(x) x##_offset_unfilled
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_UNFILLED_BIT)
#define TAG(x) x##_twoside_unfilled
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT)
#define TAG(x) x##_twoside_offset_unfilled
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_FALLBACK_BIT)
#define TAG(x) x##_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT|TDFX_FALLBACK_BIT)
#define TAG(x) x##_offset_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_FALLBACK_BIT)
#define TAG(x) x##_twoside_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT|TDFX_FALLBACK_BIT)
#define TAG(x) x##_twoside_offset_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_UNFILLED_BIT|TDFX_FALLBACK_BIT)
#define TAG(x) x##_unfilled_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT|TDFX_FALLBACK_BIT)
#define TAG(x) x##_offset_unfilled_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_UNFILLED_BIT|TDFX_FALLBACK_BIT)
#define TAG(x) x##_twoside_unfilled_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT| \
TDFX_FALLBACK_BIT)
#define TAG(x) x##_twoside_offset_unfilled_fallback
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_FLAT_BIT)
#define TAG(x) x##_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_offset_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_offset_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_UNFILLED_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_unfilled_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_offset_unfilled_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_UNFILLED_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_unfilled_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_offset_unfilled_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_fallback_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT|TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_offset_fallback_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_fallback_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT|TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_offset_fallback_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_UNFILLED_BIT|TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_unfilled_fallback_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT|TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_offset_unfilled_fallback_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_UNFILLED_BIT|TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_unfilled_fallback_flat
#include "tnl_dd/t_dd_tritmp.h"
#define IND (TDFX_TWOSIDE_BIT|TDFX_OFFSET_BIT|TDFX_UNFILLED_BIT| \
TDFX_FALLBACK_BIT|TDFX_FLAT_BIT)
#define TAG(x) x##_twoside_offset_unfilled_fallback_flat
#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();
init_flat();
init_offset_flat();
init_twoside_flat();
init_twoside_offset_flat();
init_unfilled_flat();
init_offset_unfilled_flat();
init_twoside_unfilled_flat();
init_twoside_offset_unfilled_flat();
init_fallback_flat();
init_offset_fallback_flat();
init_twoside_fallback_flat();
init_twoside_offset_fallback_flat();
init_unfilled_fallback_flat();
init_offset_unfilled_fallback_flat();
init_twoside_unfilled_fallback_flat();
init_twoside_offset_unfilled_fallback_flat();
}
static void tdfx_render_vb_points( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
int stride = 1<<shift;
GLubyte *tmp;
GLint i;
(void) flags;
for (i = start, tmp = fxVB; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x += PNT_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y += PNT_Y_OFFSET - TRI_Y_OFFSET;
}
fxMesa->Glide.grDrawVertexArrayContiguous( GR_POINTS, count-start,
fxVB, stride);
for (i = start, tmp = fxVB; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x -= PNT_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y -= PNT_Y_OFFSET - TRI_Y_OFFSET;
}
}
static void tdfx_render_vb_line_strip( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
int stride = 1<<shift;
GLubyte *tmp;
GLint i;
(void) flags;
for (i = start, tmp = fxVB; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x += LINE_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y += LINE_Y_OFFSET - TRI_Y_OFFSET;
}
fxMesa->Glide.grDrawVertexArrayContiguous( GR_LINE_STRIP, count-start,
fxVB, 1<<shift);
for (i = start, tmp = fxVB; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x -= LINE_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y -= LINE_Y_OFFSET - TRI_Y_OFFSET;
}
}
static void tdfx_render_vb_line_loop( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
int stride = 1<<shift;
GLubyte *tmp, *tmp2 = fxVB;
GLint i;
GLint j = start;
(void) flags;
if (!(flags & PRIM_BEGIN)) {
fxVB += (1 << shift);
j++;
}
for (i = start, tmp = tmp2; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x += LINE_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y += LINE_Y_OFFSET - TRI_Y_OFFSET;
}
fxMesa->Glide.grDrawVertexArrayContiguous( GR_LINE_STRIP, count-j,
fxVB, 1<<shift);
if (flags & PRIM_END)
fxMesa->Glide.grDrawLine( fxMesa->verts + ((count - 1)<<shift),
fxMesa->verts + (start<<shift) );
for (i = start, tmp = tmp2; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x -= LINE_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y -= LINE_Y_OFFSET - TRI_Y_OFFSET;
}
}
static void tdfx_render_vb_lines( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
int stride = 1<<shift;
GLubyte *tmp;
GLint i;
(void) flags;
for (i = start, tmp = fxVB; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x += LINE_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y += LINE_Y_OFFSET - TRI_Y_OFFSET;
}
fxMesa->Glide.grDrawVertexArrayContiguous( GR_LINES, count-start,
fxVB, 1<<shift);
for (i = start, tmp = fxVB; i < count; i++, tmp += stride) {
((tdfxVertexPtr)tmp)->v.x -= LINE_X_OFFSET - TRI_X_OFFSET;
((tdfxVertexPtr)tmp)->v.y -= LINE_Y_OFFSET - TRI_Y_OFFSET;
}
}
static void tdfx_render_vb_triangles( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
(void) flags;
fxMesa->Glide.grDrawVertexArrayContiguous( GR_TRIANGLES, count-start,
fxVB, 1<<shift);
}
static void tdfx_render_vb_tri_strip( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
int mode;
(void) flags;
if (flags & PRIM_PARITY)
mode = GR_TRIANGLE_STRIP_CONTINUE;
else
mode = GR_TRIANGLE_STRIP;
fxMesa->Glide.grDrawVertexArrayContiguous( mode, count-start,
fxVB, 1<<shift);
}
static void tdfx_render_vb_tri_fan( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
(void) flags;
fxMesa->Glide.grDrawVertexArrayContiguous( GR_TRIANGLE_FAN, count-start,
fxVB, 1<<shift );
}
static void tdfx_render_vb_quads( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts;
GLuint i;
(void) flags;
for (i = start ; i < count-3 ; i += 4 ) {
#define VERT(x) (fxVB + ((x)<<shift))
fxMesa->Glide.grDrawTriangle( VERT(i), VERT(i+1), VERT(i+3) );
fxMesa->Glide.grDrawTriangle( VERT(i+1), VERT(i+2), VERT(i+3) );
#undef VERT
}
}
static void tdfx_render_vb_quad_strip( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
(void) flags;
count -= (count-start)&1;
fxMesa->Glide.grDrawVertexArrayContiguous( GR_TRIANGLE_STRIP,
count-start, fxVB, 1<<shift);
}
static void tdfx_render_vb_poly( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint shift = fxMesa->vertex_stride_shift;
GLubyte *fxVB = fxMesa->verts + (start << shift);
(void) flags;
fxMesa->Glide.grDrawVertexArrayContiguous( GR_POLYGON, count-start,
fxVB, 1<<shift);
}
static void tdfx_render_vb_noop( GLcontext *ctx,
GLuint start,
GLuint count,
GLuint flags )
{
(void) (ctx && start && count && flags);
}
static void (*tdfx_render_tab_verts[GL_POLYGON+2])(GLcontext *,
GLuint,
GLuint,
GLuint) =
{
tdfx_render_vb_points,
tdfx_render_vb_lines,
tdfx_render_vb_line_loop,
tdfx_render_vb_line_strip,
tdfx_render_vb_triangles,
tdfx_render_vb_tri_strip,
tdfx_render_vb_tri_fan,
tdfx_render_vb_quads,
tdfx_render_vb_quad_strip,
tdfx_render_vb_poly,
tdfx_render_vb_noop,
};
#define VERT(x) (tdfxVertex *)(vertptr + ((x)<<vertshift))
#define RENDER_POINTS( start, count ) \
for ( ; start < count ; start++) \
fxMesa->Glide.grDrawPoint( VERT(ELT(start)) );
#define RENDER_LINE( v0, v1 ) \
fxMesa->Glide.grDrawLine( VERT(v0), VERT(v1) )
#define RENDER_TRI( v0, v1, v2 ) \
fxMesa->Glide.grDrawTriangle( VERT(v0), VERT(v1), VERT(v2) )
#define RENDER_QUAD( v0, v1, v2, v3 ) \
tdfx_draw_quad( fxMesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
#define INIT(x) tdfxRenderPrimitive( ctx, x )
#undef LOCAL_VARS
#define LOCAL_VARS \
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); \
GLubyte *vertptr = (GLubyte *)fxMesa->verts; \
const GLuint vertshift = fxMesa->vertex_stride_shift; \
const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
(void) elt;
#define RESET_STIPPLE
#define RESET_OCCLUSION
#define PRESERVE_VB_DEFS
#undef ELT
#undef TAG
#define TAG(x) tdfx_##x##_elts
#define ELT(x) elt[x]
#include "tnl_dd/t_dd_rendertmp.h"
static void tdfxRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
GLuint n )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
GLuint prim = fxMesa->render_primitive;
{
GLuint *tmp = VB->Elts;
VB->Elts = (GLuint *)elts;
tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, PRIM_BEGIN|PRIM_END );
VB->Elts = tmp;
}
if (prim != GL_POLYGON)
tnl->Driver.Render.PrimitiveNotify( ctx, prim );
}
static void tdfxRenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
tnl->Driver.Render.Line( ctx, ii, jj );
}
static void tdfxFastRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
GLuint n )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
GLubyte *vertptr = (GLubyte *)fxMesa->verts;
const GLuint vertshift = fxMesa->vertex_stride_shift;
const GLuint *start = (const GLuint *)VERT(elts[0]);
int i;
for (i = 2 ; i < n ; i++) {
fxMesa->Glide.grDrawTriangle( VERT(elts[i-1]), VERT(elts[i]), start );
}
}
#define POINT_FALLBACK (DD_POINT_SMOOTH)
#define LINE_FALLBACK (DD_LINE_STIPPLE)
#define TRI_FALLBACK (DD_TRI_SMOOTH)
#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK|DD_TRI_STIPPLE)
#define ANY_RASTER_FLAGS (DD_FLATSHADE|DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET| \
DD_TRI_UNFILLED)
#define _TDFX_NEW_RENDERSTATE (_DD_NEW_POINT_SMOOTH | \
_DD_NEW_LINE_STIPPLE | \
_DD_NEW_TRI_SMOOTH | \
_DD_NEW_FLATSHADE | \
_DD_NEW_TRI_UNFILLED | \
_DD_NEW_TRI_LIGHT_TWOSIDE | \
_DD_NEW_TRI_OFFSET | \
_DD_NEW_TRI_STIPPLE | \
_NEW_POLYGONSTIPPLE)
static void tdfxChooseRenderState(GLcontext *ctx)
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint flags = ctx->_TriangleCaps;
GLuint index = 0;
if (0) {
fxMesa->draw_point = tdfx_draw_point;
fxMesa->draw_line = tdfx_draw_line;
fxMesa->draw_triangle = tdfx_draw_triangle;
index |= TDFX_FALLBACK_BIT;
}
if (flags & (ANY_FALLBACK_FLAGS|ANY_RASTER_FLAGS)) {
if (flags & ANY_RASTER_FLAGS) {
if (flags & DD_TRI_LIGHT_TWOSIDE) index |= TDFX_TWOSIDE_BIT;
if (flags & DD_TRI_OFFSET) index |= TDFX_OFFSET_BIT;
if (flags & DD_TRI_UNFILLED) index |= TDFX_UNFILLED_BIT;
if (flags & DD_FLATSHADE) index |= TDFX_FLAT_BIT;
}
fxMesa->draw_point = tdfx_draw_point;
fxMesa->draw_line = tdfx_draw_line;
fxMesa->draw_triangle = tdfx_draw_triangle;
if (flags & (POINT_FALLBACK|
LINE_FALLBACK|
TRI_FALLBACK|
DD_TRI_STIPPLE|
DD_TRI_UNFILLED))
{
if (flags & POINT_FALLBACK)
fxMesa->draw_point = tdfx_fallback_point;
if (flags & LINE_FALLBACK)
fxMesa->draw_line = tdfx_fallback_line;
if (flags & TRI_FALLBACK)
fxMesa->draw_triangle = tdfx_fallback_tri;
if ((flags & DD_TRI_STIPPLE) && !fxMesa->haveHwStipple)
fxMesa->draw_triangle = tdfx_fallback_tri;
index |= TDFX_FALLBACK_BIT;
}
}
if (fxMesa->RenderIndex != index) {
fxMesa->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 = tdfx_render_tab_verts;
tnl->Driver.Render.PrimTabElts = tdfx_render_tab_elts;
tnl->Driver.Render.ClippedLine = line;
tnl->Driver.Render.ClippedPolygon = tdfxFastRenderClippedPoly;
} else {
tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
tnl->Driver.Render.ClippedLine = tdfxRenderClippedLine;
tnl->Driver.Render.ClippedPolygon = tdfxRenderClippedPoly;
}
}
}
static GLboolean multipass_cliprect( GLcontext *ctx, GLuint pass )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
if (pass >= fxMesa->numClipRects)
return GL_FALSE;
else {
fxMesa->Glide.grClipWindow(fxMesa->pClipRects[pass].x1,
fxMesa->screen_height - fxMesa->pClipRects[pass].y2,
fxMesa->pClipRects[pass].x2,
fxMesa->screen_height - fxMesa->pClipRects[pass].y1);
return GL_TRUE;
}
}
static void tdfxRunPipeline( GLcontext *ctx )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
if (fxMesa->new_state) {
tdfxDDUpdateHwState( ctx );
}
if (!fxMesa->Fallback && fxMesa->new_gl_state) {
if (fxMesa->new_gl_state & _TDFX_NEW_RASTERSETUP)
tdfxChooseVertexState( ctx );
if (fxMesa->new_gl_state & _TDFX_NEW_RENDERSTATE)
tdfxChooseRenderState( ctx );
fxMesa->new_gl_state = 0;
}
_tnl_run_pipeline( ctx );
}
static void tdfxRenderStart( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
tdfxCheckTexSizes( ctx );
LOCK_HARDWARE(fxMesa);
if (fxMesa->dirty) {
tdfxEmitHwStateLocked( fxMesa );
}
if (fxMesa->numClipRects && !(fxMesa->RenderIndex & TDFX_FALLBACK_BIT)) {
fxMesa->Glide.grClipWindow(fxMesa->pClipRects[0].x1,
fxMesa->screen_height - fxMesa->pClipRects[0].y2,
fxMesa->pClipRects[0].x2,
fxMesa->screen_height - fxMesa->pClipRects[0].y1);
if (fxMesa->numClipRects > 1)
tnl->Driver.Render.Multipass = multipass_cliprect;
else
tnl->Driver.Render.Multipass = NULL;
}
else
tnl->Driver.Render.Multipass = NULL;
}
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
};
static void tdfxRasterPrimitive( GLcontext *ctx, GLenum prim )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
FLUSH_BATCH( fxMesa );
fxMesa->raster_primitive = prim;
tdfxUpdateCull(ctx);
if ( fxMesa->dirty & TDFX_UPLOAD_CULL ) {
fxMesa->Glide.grCullMode( fxMesa->CullMode );
fxMesa->dirty &= ~TDFX_UPLOAD_CULL;
}
tdfxUpdateStipple(ctx);
if ( fxMesa->dirty & TDFX_UPLOAD_STIPPLE ) {
fxMesa->Glide.grStipplePattern ( fxMesa->Stipple.Pattern );
fxMesa->Glide.grStippleMode ( fxMesa->Stipple.Mode );
fxMesa->dirty &= ~TDFX_UPLOAD_STIPPLE;
}
}
static void tdfxRenderPrimitive( GLcontext *ctx, GLenum prim )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint rprim = reduced_prim[prim];
fxMesa->render_primitive = prim;
if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
return;
if (fxMesa->raster_primitive != rprim) {
tdfxRasterPrimitive( ctx, rprim );
}
}
static void tdfxRenderFinish( GLcontext *ctx )
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
if (fxMesa->RenderIndex & TDFX_FALLBACK_BIT)
_swrast_flush( ctx );
UNLOCK_HARDWARE(fxMesa);
}
static char *fallbackStrings[] = {
"1D/3D Texture map",
"glDrawBuffer(GL_FRONT_AND_BACK)",
"Separate specular color",
"glEnable/Disable(GL_STENCIL_TEST)",
"glRenderMode(selection or feedback)",
"glLogicOp()",
"Texture env mode",
"Texture border",
"glColorMask",
"blend mode",
"line stipple"
};
static char *getFallbackString(GLuint bit)
{
int i = 0;
while (bit > 1) {
i++;
bit >>= 1;
}
return fallbackStrings[i];
}
void tdfxFallback( GLcontext *ctx, GLuint bit, GLboolean mode )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
GLuint oldfallback = fxMesa->Fallback;
if (mode) {
fxMesa->Fallback |= bit;
if (oldfallback == 0) {
FLUSH_BATCH(fxMesa);
_swsetup_Wakeup( ctx );
fxMesa->RenderIndex = ~0;
if (fxMesa->debugFallbacks) {
fprintf(stderr, "Tdfx begin software fallback: 0x%x %s\n",
bit, getFallbackString(bit));
}
}
}
else {
fxMesa->Fallback &= ~bit;
if (oldfallback == bit) {
_swrast_flush( ctx );
tnl->Driver.Render.Start = tdfxRenderStart;
tnl->Driver.Render.PrimitiveNotify = tdfxRenderPrimitive;
tnl->Driver.Render.Finish = tdfxRenderFinish;
tnl->Driver.Render.BuildVertices = tdfxBuildVertices;
fxMesa->new_gl_state |= (_TDFX_NEW_RENDERSTATE|
_TDFX_NEW_RASTERSETUP);
if (fxMesa->debugFallbacks) {
fprintf(stderr, "Tdfx end software fallback: 0x%x %s\n",
bit, getFallbackString(bit));
}
}
}
}
void tdfxDDInitTriFuncs( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
static int firsttime = 1;
if (firsttime) {
init_rast_tab();
firsttime = 0;
}
fxMesa->RenderIndex = ~0;
tnl->Driver.RunPipeline = tdfxRunPipeline;
tnl->Driver.Render.Start = tdfxRenderStart;
tnl->Driver.Render.Finish = tdfxRenderFinish;
tnl->Driver.Render.PrimitiveNotify = tdfxRenderPrimitive;
tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple;
tnl->Driver.Render.BuildVertices = tdfxBuildVertices;
tnl->Driver.Render.Multipass = NULL;
(void) tdfx_print_vertex;
}