1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
static void tdfx_unfilled_tri( GLcontext *ctx,
GLenum mode,
GLuint e0, GLuint e1, GLuint e2 )
{
tdfxContextPtr imesa = TDFX_CONTEXT(ctx);
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
GLubyte *ef = VB->EdgeFlag;
GLubyte *tdfxverts = (GLubyte *)imesa->verts;
GLuint shift = imesa->vertex_stride_shift;
tdfxVertex *v0 = (tdfxVertex *)(tdfxverts + (e0 << shift));
tdfxVertex *v1 = (tdfxVertex *)(tdfxverts + (e1 << shift));
tdfxVertex *v2 = (tdfxVertex *)(tdfxverts + (e2 << shift));
GLuint c[2];
GLuint s[2];
GLuint coloroffset = 0;
/* fprintf(stderr, "%s %s %d %d %d (vertsize %d)\n", __FUNCTION__, */
/* gl_lookup_enum_by_nr(mode), e0, e1, e2, imesa->vertsize); */
if (ctx->_TriangleCaps & DD_FLATSHADE) {
coloroffset = (imesa->vertsize == 4) ? 3 : 4;
TDFX_COPY_COLOR(c[0], v0->ui[coloroffset]);
TDFX_COPY_COLOR(c[1], v1->ui[coloroffset]);
TDFX_COPY_COLOR(v0->ui[coloroffset], v2->ui[coloroffset]);
TDFX_COPY_COLOR(v1->ui[coloroffset], v2->ui[coloroffset]);
if (coloroffset == 4) {
TDFX_COPY_COLOR(s[0], v0->v.specular);
TDFX_COPY_COLOR(s[1], v1->v.specular);
TDFX_COPY_COLOR(v0->v.specular, v2->v.specular);
TDFX_COPY_COLOR(v1->v.specular, v2->v.specular);
}
}
if (mode == GL_POINT) {
tdfxRasterPrimitive( ctx, GL_POINTS, PR_LINES );
if (ef[e0]) imesa->draw_point( imesa, v0 );
if (ef[e1]) imesa->draw_point( imesa, v1 );
if (ef[e2]) imesa->draw_point( imesa, v2 );
}
else {
tdfxRasterPrimitive( ctx, GL_LINES, PR_LINES );
if (imesa->render_primitive == GL_POLYGON) {
if (ef[e2]) imesa->draw_line( imesa, v2, v0 );
if (ef[e0]) imesa->draw_line( imesa, v0, v1 );
if (ef[e1]) imesa->draw_line( imesa, v1, v2 );
}
else {
if (ef[e0]) imesa->draw_line( imesa, v0, v1 );
if (ef[e1]) imesa->draw_line( imesa, v1, v2 );
if (ef[e2]) imesa->draw_line( imesa, v2, v0 );
}
}
if (ctx->_TriangleCaps & DD_FLATSHADE) {
TDFX_COPY_COLOR(v0->ui[coloroffset], c[0]);
TDFX_COPY_COLOR(v1->ui[coloroffset], c[1]);
if (coloroffset == 4) {
TDFX_COPY_COLOR(v0->v.specular, s[0]);
TDFX_COPY_COLOR(v1->v.specular, s[1]);
}
}
}
static void tdfx_unfilled_quad( GLcontext *ctx,
GLenum mode,
GLuint e0, GLuint e1,
GLuint e2, GLuint e3 )
{
tdfxContextPtr imesa = TDFX_CONTEXT(ctx);
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
GLubyte *ef = VB->EdgeFlag;
GLubyte *tdfxverts = (GLubyte *)imesa->verts;
GLuint shift = imesa->vertex_stride_shift;
tdfxVertex *v0 = (tdfxVertex *)(tdfxverts + (e0 << shift));
tdfxVertex *v1 = (tdfxVertex *)(tdfxverts + (e1 << shift));
tdfxVertex *v2 = (tdfxVertex *)(tdfxverts + (e2 << shift));
tdfxVertex *v3 = (tdfxVertex *)(tdfxverts + (e3 << shift));
GLuint c[3];
GLuint s[3];
GLuint coloroffset = 0;
if (ctx->_TriangleCaps & DD_FLATSHADE) {
coloroffset = (imesa->vertsize == 4) ? 3 : 4;
TDFX_COPY_COLOR(c[0], v0->ui[coloroffset]);
TDFX_COPY_COLOR(c[1], v1->ui[coloroffset]);
TDFX_COPY_COLOR(c[2], v2->ui[coloroffset]);
TDFX_COPY_COLOR(v0->ui[coloroffset], v3->ui[coloroffset]);
TDFX_COPY_COLOR(v1->ui[coloroffset], v3->ui[coloroffset]);
TDFX_COPY_COLOR(v2->ui[coloroffset], v3->ui[coloroffset]);
if (coloroffset == 4) {
TDFX_COPY_COLOR(s[0], v0->v.specular);
TDFX_COPY_COLOR(s[1], v1->v.specular);
TDFX_COPY_COLOR(s[2], v2->v.specular);
TDFX_COPY_COLOR(v0->v.specular, v3->v.specular);
TDFX_COPY_COLOR(v1->v.specular, v3->v.specular);
TDFX_COPY_COLOR(v2->v.specular, v3->v.specular);
}
}
if (mode == GL_POINT) {
if (imesa->reduced_primitive != GL_POINTS)
tdfxRasterPrimitive( ctx, GL_POINTS, PR_LINES );
if (ef[e0]) imesa->draw_point( imesa, v0 );
if (ef[e1]) imesa->draw_point( imesa, v1 );
if (ef[e2]) imesa->draw_point( imesa, v2 );
if (ef[e3]) imesa->draw_point( imesa, v3 );
}
else {
if (imesa->reduced_primitive != GL_LINES)
tdfxRasterPrimitive( ctx, GL_LINES, PR_LINES );
if (ef[e0]) imesa->draw_line( imesa, v0, v1 );
if (ef[e1]) imesa->draw_line( imesa, v1, v2 );
if (ef[e2]) imesa->draw_line( imesa, v2, v3 );
if (ef[e3]) imesa->draw_line( imesa, v3, v0 );
}
if (ctx->_TriangleCaps & DD_FLATSHADE) {
TDFX_COPY_COLOR(v0->ui[coloroffset], c[0]);
TDFX_COPY_COLOR(v1->ui[coloroffset], c[1]);
TDFX_COPY_COLOR(v2->ui[coloroffset], c[2]);
if (coloroffset == 4) {
TDFX_COPY_COLOR(v0->v.specular, s[0]);
TDFX_COPY_COLOR(v1->v.specular, s[1]);
TDFX_COPY_COLOR(v2->v.specular, s[2]);
}
}
}
|
