fb20dfa4e1aa29f0d6d2f832162282ce4bb78f71
1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keith@tungstengraphics.com>
34 #include "pipe/p_util.h"
35 #include "draw_private.h"
36 #include "draw_context.h"
37 #include "draw_vertex.h"
39 #include "x86/rtasm/x86sse.h"
41 #include "pipe/tgsi/exec/tgsi_core.h"
47 static INLINE
unsigned
48 compute_clipmask(const float *clip
, /*const*/ float plane
[][4], unsigned nr
)
53 for (i
= 0; i
< nr
; i
++) {
54 if (dot4(clip
, plane
[i
]) < 0)
62 typedef void (XSTDCALL
*codegen_function
) (
63 const struct tgsi_exec_vector
*input
,
64 struct tgsi_exec_vector
*output
,
66 struct tgsi_exec_vector
*temporary
);
70 * Transform vertices with the current vertex program/shader
71 * Up to four vertices can be shaded at a time.
72 * \param vbuffer the input vertex data
73 * \param elts indexes of four input vertices
74 * \param count number of vertices to shade [1..4]
75 * \param vOut array of pointers to four output vertices
78 run_vertex_program(struct draw_context
*draw
,
79 unsigned elts
[4], unsigned count
,
80 struct vertex_header
*vOut
[])
82 struct tgsi_exec_machine
*machine
= &draw
->machine
;
85 ALIGN16_DECL(struct tgsi_exec_vector
, inputs
, PIPE_ATTRIB_MAX
);
86 ALIGN16_DECL(struct tgsi_exec_vector
, outputs
, PIPE_ATTRIB_MAX
);
87 const float *scale
= draw
->viewport
.scale
;
88 const float *trans
= draw
->viewport
.translate
;
91 assert(draw
->vertex_shader
->state
->output_semantic_name
[0]
92 == TGSI_SEMANTIC_POSITION
);
94 /* Consts does not require 16 byte alignment. */
95 machine
->Consts
= (float (*)[4]) draw
->mapped_constants
;
97 machine
->Inputs
= ALIGN16_ASSIGN(inputs
);
98 machine
->Outputs
= ALIGN16_ASSIGN(outputs
);
100 draw_vertex_fetch( draw
, machine
, elts
, count
);
103 if( draw
->vertex_shader
->state
->executable
!= NULL
) {
105 codegen_function func
= (codegen_function
) draw
->vertex_shader
->state
->executable
;
114 tgsi_exec_machine_run( machine
);
118 /* store machine results */
119 for (j
= 0; j
< count
; j
++) {
123 /* Handle attr[0] (position) specially:
125 * XXX: Computing the clipmask should be done in the vertex
126 * program as a set of DP4 instructions appended to the
127 * user-provided code.
129 x
= vOut
[j
]->clip
[0] = machine
->Outputs
[0].xyzw
[0].f
[j
];
130 y
= vOut
[j
]->clip
[1] = machine
->Outputs
[0].xyzw
[1].f
[j
];
131 z
= vOut
[j
]->clip
[2] = machine
->Outputs
[0].xyzw
[2].f
[j
];
132 w
= vOut
[j
]->clip
[3] = machine
->Outputs
[0].xyzw
[3].f
[j
];
134 vOut
[j
]->clipmask
= compute_clipmask(vOut
[j
]->clip
, draw
->plane
, draw
->nr_planes
);
135 vOut
[j
]->edgeflag
= 1;
143 /* Viewport mapping */
144 vOut
[j
]->data
[0][0] = x
* scale
[0] + trans
[0];
145 vOut
[j
]->data
[0][1] = y
* scale
[1] + trans
[1];
146 vOut
[j
]->data
[0][2] = z
* scale
[2] + trans
[2];
147 vOut
[j
]->data
[0][3] = w
;
150 printf("output[%d]win: %f %f %f %f\n", x
, y
, z
, w
);
152 /* Remaining attributes are packed into sequential post-transform
153 * vertex attrib slots.
154 * Skip 0 since we just did it above.
155 * Subtract two because of the VERTEX_HEADER, CLIP_POS attribs.
157 for (slot
= 1; slot
< draw
->vertex_info
.num_attribs
- 2; slot
++) {
158 vOut
[j
]->data
[slot
][0] = machine
->Outputs
[slot
].xyzw
[0].f
[j
];
159 vOut
[j
]->data
[slot
][1] = machine
->Outputs
[slot
].xyzw
[1].f
[j
];
160 vOut
[j
]->data
[slot
][2] = machine
->Outputs
[slot
].xyzw
[2].f
[j
];
161 vOut
[j
]->data
[slot
][3] = machine
->Outputs
[slot
].xyzw
[3].f
[j
];
163 printf("output[%d][%d]: %f %f %f %f\n", j
, slot
,
166 } /* loop over vertices */
171 * Called by the draw module when the vertx cache needs to be flushed.
172 * This involves running the vertex shader.
174 void draw_vertex_shader_queue_flush( struct draw_context
*draw
)
178 if (draw
->vertex_shader
->state
->llvm_prog
) {
179 draw_vertex_shader_queue_flush_llvm(draw
);
183 /* run vertex shader on vertex cache entries, four per invokation */
184 for (i
= 0; i
< draw
->vs
.queue_nr
; i
+= 4) {
185 struct vertex_header
*dests
[4];
189 for (j
= 0; j
< 4; j
++) {
190 elts
[j
] = draw
->vs
.queue
[i
+ j
].elt
;
191 dests
[j
] = draw
->vs
.queue
[i
+ j
].dest
;
194 n
= MIN2(4, draw
->vs
.queue_nr
- i
);
198 run_vertex_program(draw
, elts
, n
, dests
);
201 draw
->vs
.queue_nr
= 0;
206 draw_create_vertex_shader(struct draw_context
*draw
,
207 const struct pipe_shader_state
*shader
)
209 struct draw_vertex_shader
*vs
= calloc(1, sizeof(struct draw_vertex_shader
));
212 #if defined(__i386__) || defined(__386__)
214 /* cast-away const */
215 struct pipe_shader_state
*sh
= (struct pipe_shader_state
*) shader
;
217 x86_init_func( &sh
->sse2_program
);
219 tgsi_emit_sse2( sh
->tokens
, &sh
->sse2_program
);
221 sh
->executable
= x86_get_func( &sh
->sse2_program
);
228 void draw_bind_vertex_shader(struct draw_context
*draw
,
232 draw
->vertex_shader
= (struct draw_vertex_shader
*)(vcso
);
234 /* specify the fragment program to interpret/execute */
235 tgsi_exec_machine_init(&draw
->machine
,
236 draw
->vertex_shader
->state
->tokens
,
241 void draw_delete_vertex_shader(struct draw_context
*draw
,
244 struct draw_vertex_shader
*vs
= (struct draw_vertex_shader
*)(vcso
);
246 #if defined(__i386__) || defined(__386__)
247 x86_release_func((struct x86_function
*) &vs
->state
->sse2_program
);
250 free((void *) vs
->state
);