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
|
struct lp_rasterizer *lp_rast_create( void )
{
return CALLOC_STRUCT(lp_rasterizer);
}
void lp_rast_bind_surfaces( struct lp_rasterizer *,
struct pipe_surface *color,
struct pipe_surface *zstencil,
const float *clear_color,
double clear_depth,
unsigned clear_stencil)
{
pipe_surface_reference(&rast->state.color, color);
pipe_surface_reference(&rast->state.depth, depth);
rast->state.clear_color = util_pack_8888(clear_color);
rast->state.clear_depth = clear_depth * 0xffffffff;
rast->state.clear_stencil = clear_stencil;
}
/* Begining of each tile:
*/
void lp_rast_start_tile( struct lp_rasterizer *,
unsigned x,
unsigned y )
{
rast->x = x;
rast->y = y;
}
void lp_rast_clear_color( struct lp_rasterizer *rast )
{
const unsigned clear_color = rast->state.clear_color;
unsigned i, j;
for (i = 0; i < TILESIZE; i++)
for (j = 0; j < TILESIZE; j++)
rast->tile[i][j] = clear_color;
}
void lp_rast_clear_depth( struct lp_rasterizer *rast )
{
const unsigned clear_depth = rast->state.clear_depth;
unsigned i, j;
for (i = 0; i < TILESIZE; i++)
for (j = 0; j < TILESIZE; j++)
rast->tile[i][j] = clear_depth;
}
void lp_rast_clear_stencil( struct lp_rasterizer *rast )
{
const unsigned clear_stencil = rast->state.clear_stencil;
memset(rast->tile.stencil, clear_stencil, sizeof rast->tile.stencil );
}
void lp_rast_load_color( struct lp_rasterizer *rast )
{
/* call u_tile func to load colors from surface */
}
void lp_rast_load_zstencil( struct lp_rasterizer *rast )
{
/* call u_tile func to load depth (and stencil?) from surface */
}
/* Within a tile:
*/
void lp_rast_set_state( struct lp_rasterizer *rast,
const struct lp_rast_state *state )
{
rast->shader_state = state;
lp->quad.first->begin( lp->quad.first );
}
void lp_rast_shade_tile( struct lp_rasterizer *rast,
const struct lp_rast_shader_inputs *inputs )
{
/* Set up the silly quad coef pointers
*/
for (i = 0; i < 4; i++) {
rast->quads[i].posCoef = &inputs->posCoef;
rast->quads[i].coef = inputs->coef;
}
/* Use the existing preference for 8x2 (four quads) shading:
*/
for (i = 0; i < TILESIZE; i += 8) {
for (j = 0; j < TILESIZE; j += 2) {
rast->shader_state.shade( inputs->jc,
rast->x + i,
rast->y + j,
rast->quads, 4 );
}
}
}
void lp_rast_shade_quads( const struct lp_rast_state *state,
struct lp_rast_tile *tile,
struct quad_header **quads,
unsigned nr )
{
struct lp_fragment_shader *fs = llvmpipe->fs;
struct quad_header *quad = quads[0];
const unsigned x = quad->input.x0;
const unsigned y = quad->input.y0;
uint8_t *color;
uint8_t *depth;
uint32_t ALIGN16_ATTRIB mask[4][NUM_CHANNELS];
unsigned chan_index;
unsigned q;
/* Sanity checks */
assert(nr * QUAD_SIZE == TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH);
assert(x % TILE_VECTOR_WIDTH == 0);
assert(y % TILE_VECTOR_HEIGHT == 0);
for (q = 0; q < nr; ++q) {
assert(quads[q]->input.x0 == x + q*2);
assert(quads[q]->input.y0 == y);
}
/* mask */
for (q = 0; q < 4; ++q)
for (chan_index = 0; chan_index < NUM_CHANNELS; ++chan_index)
mask[q][chan_index] = quads[q]->inout.mask & (1 << chan_index) ? ~0 : 0;
/* color buffer */
color = &TILE_PIXEL(tile->color, x, y, 0);
/* depth buffer */
assert((x % 2) == 0);
assert((y % 2) == 0);
depth = (uint8_t)*tile->depth + y*TILE_SIZE*4 + 2*x*4;
/* XXX: This will most likely fail on 32bit x86 without -mstackrealign */
assert(lp_check_alignment(mask, 16));
assert(lp_check_alignment(depth, 16));
assert(lp_check_alignment(color, 16));
assert(lp_check_alignment(state->jc.blend_color, 16));
/* run shader */
state->jit_function( &state->jc,
x, y,
quad->coef->a0,
quad->coef->dadx,
quad->coef->dady,
&mask[0][0],
color,
depth);
}
/* End of tile:
*/
void lp_rast_store_color( struct lp_rasterizer *rast )
{
/* call u_tile func to store colors to surface */
}
void lp_rast_store_zstencil( struct lp_rasterizer *rast )
{
/* call u_tile func to store depth/stencil to surface */
}
/* Shutdown:
*/
void lp_rast_destroy( struct lp_rasterizer *rast )
{
FREE(rast);
}
|
