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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
* Copyright 2001 by Alan Hourihane.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Alan Hourihane, <alanh@tungstengraphics.com>
*
* 3DLabs Gamma driver.
*
*/
#include "glheader.h"
#include "context.h"
#include "macros.h"
#include "imports.h"
#include "mtypes.h"
#include "tnl/t_context.h"
#include "gamma_context.h"
#include "gamma_tris.h"
#include "gamma_vb.h"
/* !! Should template this eventually !! */
static void gamma_emit( GLcontext *ctx, GLuint start, GLuint end)
{
gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
GLfloat (*coord)[4];
GLuint coord_stride;
GLfloat (*col)[4];
GLuint col_stride;
int i;
GLuint tc0_stride = 0;
GLfloat (*tc0)[4] = 0;
GLuint tc0_size = 0;
col = VB->ColorPtr[0]->data;
col_stride = VB->ColorPtr[0]->stride;
if (ctx->Texture.Unit[0]._ReallyEnabled) {
tc0_stride = VB->TexCoordPtr[0]->stride;
tc0 = VB->TexCoordPtr[0]->data;
tc0_size = VB->TexCoordPtr[0]->size;
coord = VB->ClipPtr->data;
coord_stride = VB->ClipPtr->stride;
} else {
coord = VB->NdcPtr->data;
coord_stride = VB->NdcPtr->stride;
}
if (ctx->Texture.Unit[0]._ReallyEnabled && tc0_size == 4) {
for (i=start; i < end; i++) {
CHECK_DMA_BUFFER(gmesa, 9);
WRITEF(gmesa->buf, Tq4, tc0[i][3]);
WRITEF(gmesa->buf, Tr4, tc0[i][2]);
WRITEF(gmesa->buf, Tt4, tc0[i][0]);
WRITEF(gmesa->buf, Ts4, tc0[i][1]);
WRITE(gmesa->buf, PackedColor4, *(uint32_t*)col[i]);
WRITEF(gmesa->buf, Vw, coord[i][3]);
WRITEF(gmesa->buf, Vz, coord[i][2]);
WRITEF(gmesa->buf, Vy, coord[i][1]);
WRITEF(gmesa->buf, Vx4, coord[i][0]);
}
} else if (ctx->Texture.Unit[0]._ReallyEnabled && tc0_size == 2) {
for (i=start; i < end; i++) {
CHECK_DMA_BUFFER(gmesa, 7);
WRITEF(gmesa->buf, Tt2, tc0[i][0]);
WRITEF(gmesa->buf, Ts2, tc0[i][1]);
WRITE(gmesa->buf, PackedColor4, *(uint32_t*)col[i]);
WRITEF(gmesa->buf, Vw, coord[i][3]);
WRITEF(gmesa->buf, Vz, coord[i][2]);
WRITEF(gmesa->buf, Vy, coord[i][1]);
WRITEF(gmesa->buf, Vx4, coord[i][0]);
}
} else {
for (i=start; i < end; i++) {
CHECK_DMA_BUFFER(gmesa, 4);
WRITE(gmesa->buf, PackedColor4, *(uint32_t*)col[i]);
WRITEF(gmesa->buf, Vz, coord[i][2]);
WRITEF(gmesa->buf, Vy, coord[i][1]);
WRITEF(gmesa->buf, Vx3, coord[i][0]);
}
}
}
#define HAVE_POINTS 1
#define HAVE_LINES 1
#define HAVE_LINE_STRIPS 1
#define HAVE_TRIANGLES 1
#define HAVE_TRI_STRIPS 1
#define HAVE_TRI_STRIP_1 0
#define HAVE_TRI_FANS 1
#define HAVE_QUADS 1
#define HAVE_QUAD_STRIPS 1
#define HAVE_POLYGONS 1
#define HAVE_ELTS 0
static const GLuint hw_prim[GL_POLYGON+1] = {
B_PrimType_Points,
B_PrimType_Lines,
B_PrimType_LineLoop,
B_PrimType_LineStrip,
B_PrimType_Triangles,
B_PrimType_TriangleStrip,
B_PrimType_TriangleFan,
B_PrimType_Quads,
B_PrimType_QuadStrip,
B_PrimType_Polygon
};
static __inline void gammaStartPrimitive( gammaContextPtr gmesa, GLenum prim )
{
CHECK_DMA_BUFFER(gmesa, 1);
WRITE(gmesa->buf, Begin, gmesa->Begin | hw_prim[prim]);
}
static __inline void gammaEndPrimitive( gammaContextPtr gmesa )
{
GLcontext *ctx = gmesa->glCtx;
if ( ctx->Line.SmoothFlag ||
ctx->Polygon.SmoothFlag ||
ctx->Point.SmoothFlag ) {
CHECK_DMA_BUFFER(gmesa, 1);
WRITE(gmesa->buf, FlushSpan, 0);
}
CHECK_DMA_BUFFER(gmesa, 1);
WRITE(gmesa->buf, End, 0);
}
#define LOCAL_VARS gammaContextPtr gmesa = GAMMA_CONTEXT(ctx)
#define INIT( prim ) gammaStartPrimitive( gmesa, prim )
#define FLUSH() gammaEndPrimitive( gmesa )
#define GET_CURRENT_VB_MAX_VERTS() \
(gmesa->bufSize - gmesa->bufCount) / 2
#define GET_SUBSEQUENT_VB_MAX_VERTS() \
GAMMA_DMA_BUFFER_SIZE / 2
#define ALLOC_VERTS( nr ) (void *)0 /* todo: explicit alloc */
#define EMIT_VERTS( ctx, j, nr, buf ) (gamma_emit(ctx, j, (j)+(nr)), (void *)0)
#define TAG(x) gamma_##x
#include "tnl_dd/t_dd_dmatmp.h"
/**********************************************************************/
/* Render pipeline stage */
/**********************************************************************/
static GLboolean gamma_run_render( GLcontext *ctx,
struct tnl_pipeline_stage *stage )
{
gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
GLuint i;
render_func *tab;
/* GH: THIS IS A HACK!!! */
if (VB->ClipOrMask || gmesa->RenderIndex != 0)
return GL_TRUE; /* don't handle clipping here */
/* We don't do elts */
if (VB->Elts || !gamma_validate_render( ctx, VB ))
return GL_TRUE;
tab = TAG(render_tab_verts);
tnl->Driver.Render.Start( ctx );
for (i = 0 ; i < VB->PrimitiveCount ; i++)
{
GLuint prim = VB->Primitive[i].mode;
GLuint start = VB->Primitive[i].start;
GLuint length = VB->Primitive[i].count;
if (!length)
continue;
tab[prim & PRIM_MODE_MASK]( ctx, start, start + length, prim);
}
tnl->Driver.Render.Finish( ctx );
return GL_FALSE; /* finished the pipe */
}
static void gamma_check_render( GLcontext *ctx,
struct tnl_pipeline_stage *stage )
{
stage->inputs = TNL_CONTEXT(ctx)->render_inputs;
}
static void dtr( struct tnl_pipeline_stage *stage )
{
(void)stage;
}
const struct tnl_pipeline_stage _gamma_render_stage =
{
"gamma render",
(_DD_NEW_SEPARATE_SPECULAR |
_NEW_TEXTURE|
_NEW_FOG|
_NEW_RENDERMODE), /* re-check (new inputs) */
0, /* re-run (always runs) */
GL_TRUE, /* active */
0, 0, /* inputs (set in check_render), outputs */
0, 0, /* changed_inputs, private */
dtr, /* destructor */
gamma_check_render, /* check - initially set to alloc data */
gamma_run_render /* run */
};
|
