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
|
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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.
*
**************************************************************************/
#include "pipe/draw/draw_private.h"
#include "pipe/p_util.h"
#include "i915_context.h"
#include "i915_winsys.h"
#include "i915_reg.h"
#include "i915_state.h"
#include "i915_batch.h"
/**
* Primitive emit to hardware. No support for vertex buffers or any
* nice fast paths.
*/
struct setup_stage {
struct draw_stage stage; /**< This must be first (base class) */
struct i915_context *i915;
};
/**
* Basically a cast wrapper.
*/
static INLINE struct setup_stage *setup_stage( struct draw_stage *stage )
{
return (struct setup_stage *)stage;
}
/**
* Extract the needed fields from vertex_header and emit i915 dwords.
* Recall that the vertices are constructed by the 'draw' module and
* have a couple of slots at the beginning (1-dword header, 4-dword
* clip pos) that we ignore here.
*/
static INLINE void
emit_hw_vertex( struct i915_context *i915,
const struct vertex_header *vertex)
{
const struct vertex_info *vinfo = &i915->current.vertex_info;
uint i;
uint count = 0; /* for debug/sanity */
for (i = 0; i < vinfo->num_attribs; i++) {
switch (vinfo->format[i]) {
case FORMAT_OMIT:
/* no-op */
break;
case FORMAT_1F:
OUT_BATCH( fui(vertex->data[i][0]) );
count++;
break;
case FORMAT_2F:
OUT_BATCH( fui(vertex->data[i][0]) );
OUT_BATCH( fui(vertex->data[i][1]) );
count += 2;
break;
case FORMAT_3F:
OUT_BATCH( fui(vertex->data[i][0]) );
OUT_BATCH( fui(vertex->data[i][1]) );
OUT_BATCH( fui(vertex->data[i][2]) );
count += 3;
break;
case FORMAT_4F:
OUT_BATCH( fui(vertex->data[i][0]) );
OUT_BATCH( fui(vertex->data[i][1]) );
OUT_BATCH( fui(vertex->data[i][2]) );
OUT_BATCH( fui(vertex->data[i][3]) );
count += 4;
break;
case FORMAT_4UB:
OUT_BATCH( pack_ub4(float_to_ubyte( vertex->data[i][2] ),
float_to_ubyte( vertex->data[i][1] ),
float_to_ubyte( vertex->data[i][0] ),
float_to_ubyte( vertex->data[i][3] )) );
count += 1;
break;
default:
assert(0);
}
}
assert(count == vinfo->size);
}
static INLINE void
emit_prim( struct draw_stage *stage,
struct prim_header *prim,
unsigned hwprim,
unsigned nr )
{
struct i915_context *i915 = setup_stage(stage)->i915;
unsigned vertex_size = i915->current.vertex_info.size * 4; /* in bytes */
unsigned *ptr;
unsigned i;
assert(vertex_size >= 12); /* never smaller than 12 bytes */
if (i915->dirty)
i915_update_derived( i915 );
if (i915->hardware_dirty)
i915_emit_hardware_state( i915 );
ptr = BEGIN_BATCH( nr * vertex_size, 0 );
if (ptr == 0) {
FLUSH_BATCH();
/* Make sure state is re-emitted after a flush:
*/
i915_update_derived( i915 );
i915_emit_hardware_state( i915 );
ptr = BEGIN_BATCH( nr * vertex_size, 0 );
if (ptr == 0) {
assert(0);
return;
}
}
/* Emit each triangle as a single primitive. I told you this was
* simple.
*/
OUT_BATCH(_3DPRIMITIVE |
hwprim |
((4 + vertex_size * nr)/4 - 2));
for (i = 0; i < nr; i++) {
emit_hw_vertex(i915, prim->v[i]);
ptr += vertex_size / sizeof(int);
}
}
static void
setup_tri( struct draw_stage *stage, struct prim_header *prim )
{
emit_prim( stage, prim, PRIM3D_TRILIST, 3 );
}
static void
setup_line(struct draw_stage *stage, struct prim_header *prim)
{
emit_prim( stage, prim, PRIM3D_LINELIST, 2 );
}
static void
setup_point(struct draw_stage *stage, struct prim_header *prim)
{
emit_prim( stage, prim, PRIM3D_POINTLIST, 1 );
}
static void setup_begin( struct draw_stage *stage )
{
}
static void setup_end( struct draw_stage *stage )
{
}
static void reset_stipple_counter( struct draw_stage *stage )
{
}
/**
* Create a new primitive setup/render stage. This gets plugged into
* the 'draw' module's pipeline.
*/
struct draw_stage *i915_draw_render_stage( struct i915_context *i915 )
{
struct setup_stage *setup = CALLOC_STRUCT(setup_stage);
setup->i915 = i915;
setup->stage.draw = i915->draw;
setup->stage.begin = setup_begin;
setup->stage.point = setup_point;
setup->stage.line = setup_line;
setup->stage.tri = setup_tri;
setup->stage.end = setup_end;
setup->stage.reset_stipple_counter = reset_stipple_counter;
return &setup->stage;
}
|
