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 "pipe/p_shader_tokens.h"
36 #if defined(__i386__) || defined(__386__)
37 #include "pipe/tgsi/exec/tgsi_sse2.h"
39 #include "draw_private.h"
40 #include "draw_context.h"
41 #include "draw_vertex.h"
43 #include "x86/rtasm/x86sse.h"
44 #include "pipe/llvm/gallivm.h"
50 static INLINE
unsigned
51 compute_clipmask(const float *clip
, /*const*/ float plane
[][4], unsigned nr
)
56 /* Do the hardwired planes first:
58 if (-clip
[0] + clip
[3] < 0) mask
|= CLIP_RIGHT_BIT
;
59 if ( clip
[0] + clip
[3] < 0) mask
|= CLIP_LEFT_BIT
;
60 if (-clip
[1] + clip
[3] < 0) mask
|= CLIP_TOP_BIT
;
61 if ( clip
[1] + clip
[3] < 0) mask
|= CLIP_BOTTOM_BIT
;
62 if (-clip
[2] + clip
[3] < 0) mask
|= CLIP_FAR_BIT
;
63 if ( clip
[2] + clip
[3] < 0) mask
|= CLIP_NEAR_BIT
;
65 /* Followed by any remaining ones:
67 for (i
= 6; i
< nr
; i
++) {
68 if (dot4(clip
, plane
[i
]) < 0)
76 typedef void (XSTDCALL
*codegen_function
) (
77 const struct tgsi_exec_vector
*input
,
78 struct tgsi_exec_vector
*output
,
80 struct tgsi_exec_vector
*temporary
);
84 * Transform vertices with the current vertex program/shader
85 * Up to four vertices can be shaded at a time.
86 * \param vbuffer the input vertex data
87 * \param elts indexes of four input vertices
88 * \param count number of vertices to shade [1..4]
89 * \param vOut array of pointers to four output vertices
92 run_vertex_program(struct draw_context
*draw
,
93 unsigned elts
[4], unsigned count
,
94 struct vertex_header
*vOut
[])
96 struct tgsi_exec_machine
*machine
= &draw
->machine
;
99 ALIGN16_DECL(struct tgsi_exec_vector
, inputs
, PIPE_ATTRIB_MAX
);
100 ALIGN16_DECL(struct tgsi_exec_vector
, outputs
, PIPE_ATTRIB_MAX
);
101 const float *scale
= draw
->viewport
.scale
;
102 const float *trans
= draw
->viewport
.translate
;
105 assert(draw
->vertex_shader
->state
->output_semantic_name
[0]
106 == TGSI_SEMANTIC_POSITION
);
108 /* Consts does not require 16 byte alignment. */
109 machine
->Consts
= (float (*)[4]) draw
->user
.constants
;
111 machine
->Inputs
= ALIGN16_ASSIGN(inputs
);
112 machine
->Outputs
= ALIGN16_ASSIGN(outputs
);
114 draw_vertex_fetch( draw
, machine
, elts
, count
);
117 #if defined(__i386__) || defined(__386__)
120 /* cast away const */
121 struct draw_vertex_shader
*shader
122 = (struct draw_vertex_shader
*)draw
->vertex_shader
;
123 codegen_function func
124 = (codegen_function
) x86_get_func( &shader
->sse2_program
);
135 tgsi_exec_machine_run( machine
);
138 /* store machine results */
139 for (j
= 0; j
< count
; j
++) {
143 /* Handle attr[0] (position) specially:
145 * XXX: Computing the clipmask should be done in the vertex
146 * program as a set of DP4 instructions appended to the
147 * user-provided code.
149 x
= vOut
[j
]->clip
[0] = machine
->Outputs
[0].xyzw
[0].f
[j
];
150 y
= vOut
[j
]->clip
[1] = machine
->Outputs
[0].xyzw
[1].f
[j
];
151 z
= vOut
[j
]->clip
[2] = machine
->Outputs
[0].xyzw
[2].f
[j
];
152 w
= vOut
[j
]->clip
[3] = machine
->Outputs
[0].xyzw
[3].f
[j
];
154 vOut
[j
]->clipmask
= compute_clipmask(vOut
[j
]->clip
, draw
->plane
, draw
->nr_planes
);
155 vOut
[j
]->edgeflag
= 1;
163 /* Viewport mapping */
164 vOut
[j
]->data
[0][0] = x
* scale
[0] + trans
[0];
165 vOut
[j
]->data
[0][1] = y
* scale
[1] + trans
[1];
166 vOut
[j
]->data
[0][2] = z
* scale
[2] + trans
[2];
167 vOut
[j
]->data
[0][3] = w
;
170 printf("output[%d]win: %f %f %f %f\n", j
,
174 vOut
[j
]->data
[0][3]);
176 /* Remaining attributes are packed into sequential post-transform
177 * vertex attrib slots.
179 for (slot
= 1; slot
< draw
->vertex_info
.num_attribs
; slot
++) {
180 vOut
[j
]->data
[slot
][0] = machine
->Outputs
[slot
].xyzw
[0].f
[j
];
181 vOut
[j
]->data
[slot
][1] = machine
->Outputs
[slot
].xyzw
[1].f
[j
];
182 vOut
[j
]->data
[slot
][2] = machine
->Outputs
[slot
].xyzw
[2].f
[j
];
183 vOut
[j
]->data
[slot
][3] = machine
->Outputs
[slot
].xyzw
[3].f
[j
];
185 printf("output[%d][%d]: %f %f %f %f\n", j
, slot
,
186 vOut
[j
]->data
[slot
][0],
187 vOut
[j
]->data
[slot
][1],
188 vOut
[j
]->data
[slot
][2],
189 vOut
[j
]->data
[slot
][3]);
192 } /* loop over vertices */
197 * Run the vertex shader on all vertices in the vertex queue.
198 * Called by the draw module when the vertx cache needs to be flushed.
201 draw_vertex_shader_queue_flush(struct draw_context
*draw
)
205 // fprintf(stderr, " q(%d) ", draw->vs.queue_nr );
207 if (draw
->vertex_shader
->llvm_prog
) {
208 draw_vertex_shader_queue_flush_llvm(draw
);
213 /* run vertex shader on vertex cache entries, four per invokation */
214 for (i
= 0; i
< draw
->vs
.queue_nr
; i
+= 4) {
215 struct vertex_header
*dests
[4];
219 for (j
= 0; j
< 4; j
++) {
220 elts
[j
] = draw
->vs
.queue
[i
+ j
].elt
;
221 dests
[j
] = draw
->vs
.queue
[i
+ j
].dest
;
224 n
= MIN2(4, draw
->vs
.queue_nr
- i
);
228 run_vertex_program(draw
, elts
, n
, dests
);
231 draw
->vs
.queue_nr
= 0;
235 struct draw_vertex_shader
*
236 draw_create_vertex_shader(struct draw_context
*draw
,
237 const struct pipe_shader_state
*shader
)
239 struct draw_vertex_shader
*vs
;
241 vs
= CALLOC_STRUCT( draw_vertex_shader
);
248 #if defined(__i386__) || defined(__386__)
250 /* cast-away const */
251 struct pipe_shader_state
*sh
= (struct pipe_shader_state
*) shader
;
253 x86_init_func( &vs
->sse2_program
);
254 tgsi_emit_sse2( (struct tgsi_token
*) sh
->tokens
, &vs
->sse2_program
);
258 vs
->llvm_prog
= gallivm_from_tgsi(shader
->tokens
, GALLIVM_VS
);
259 draw
->engine
= gallivm_global_cpu_engine();
261 draw
->engine
= gallivm_cpu_engine_create(vs
->llvm_prog
);
264 gallivm_cpu_jit_compile(draw
->engine
, vs
->llvm_prog
);
273 draw_bind_vertex_shader(struct draw_context
*draw
,
274 struct draw_vertex_shader
*dvs
)
277 draw
->vertex_shader
= dvs
;
279 /* specify the fragment program to interpret/execute */
280 tgsi_exec_machine_init(&draw
->machine
,
281 draw
->vertex_shader
->state
->tokens
,
288 draw_delete_vertex_shader(struct draw_context
*draw
,
289 struct draw_vertex_shader
*dvs
)
291 #if defined(__i386__) || defined(__386__)
292 x86_release_func( (struct x86_function
*) &dvs
->sse2_program
);