1 /**************************************************************************
3 Copyright (C) 2005 Aapo Tahkola <aet@rasterburn.org>
4 Copyright (C) 2008 Oliver McFadden <z3ro.geek@gmail.com>
8 Permission is hereby granted, free of charge, to any person obtaining a
9 copy of this software and associated documentation files (the "Software"),
10 to deal in the Software without restriction, including without limitation
11 on the rights to use, copy, modify, merge, publish, distribute, sub
12 license, and/or sell copies of the Software, and to permit persons to whom
13 the Software is furnished to do so, subject to the following conditions:
15 The above copyright notice and this permission notice (including the next
16 paragraph) shall be included in all copies or substantial portions of the
19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
22 THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
23 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
24 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
25 USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
29 /* Radeon R5xx Acceleration, Revision 1.2 */
31 #include "main/glheader.h"
32 #include "main/macros.h"
33 #include "main/enums.h"
34 #include "shader/program.h"
35 #include "shader/programopt.h"
36 #include "shader/prog_instruction.h"
37 #include "shader/prog_parameter.h"
38 #include "shader/prog_print.h"
39 #include "shader/prog_statevars.h"
42 #include "compiler/radeon_compiler.h"
43 #include "radeon_mesa_to_rc.h"
44 #include "r300_context.h"
45 #include "r300_fragprog_common.h"
46 #include "r300_state.h"
49 * Write parameter array for the given vertex program into dst.
50 * Return the total number of components written.
52 static int r300VertexProgUpdateParams(GLcontext
* ctx
, struct r300_vertex_program
*vp
, float *dst
)
56 if (vp
->Base
->IsNVProgram
) {
57 _mesa_load_tracked_matrices(ctx
);
59 if (vp
->Base
->Base
.Parameters
) {
60 _mesa_load_state_parameters(ctx
, vp
->Base
->Base
.Parameters
);
64 for(i
= 0; i
< vp
->code
.constants
.Count
; ++i
) {
65 const float * src
= 0;
66 const struct rc_constant
* constant
= &vp
->code
.constants
.Constants
[i
];
68 switch(constant
->Type
) {
69 case RC_CONSTANT_EXTERNAL
:
70 if (vp
->Base
->IsNVProgram
) {
71 src
= ctx
->VertexProgram
.Parameters
[constant
->u
.External
];
73 src
= vp
->Base
->Base
.Parameters
->ParameterValues
[constant
->u
.External
];
77 case RC_CONSTANT_IMMEDIATE
:
78 src
= constant
->u
.Immediate
;
83 dst
[4*i
+ 1] = src
[1];
84 dst
[4*i
+ 2] = src
[2];
85 dst
[4*i
+ 3] = src
[3];
88 return 4 * vp
->code
.constants
.Count
;
91 static GLbitfield
compute_required_outputs(struct gl_vertex_program
* vp
, GLbitfield fpreads
)
93 GLbitfield outputs
= 0;
96 #define ADD_OUTPUT(fp_attr, vp_result) \
98 if (fpreads & (1 << (fp_attr))) \
99 outputs |= (1 << (vp_result)); \
102 ADD_OUTPUT(FRAG_ATTRIB_COL0
, VERT_RESULT_COL0
);
103 ADD_OUTPUT(FRAG_ATTRIB_COL1
, VERT_RESULT_COL1
);
105 for (i
= 0; i
<= 7; ++i
) {
106 ADD_OUTPUT(FRAG_ATTRIB_TEX0
+ i
, VERT_RESULT_TEX0
+ i
);
111 if ((fpreads
& (1 << FRAG_ATTRIB_COL0
)) &&
112 (vp
->Base
.OutputsWritten
& (1 << VERT_RESULT_BFC0
)))
113 outputs
|= 1 << VERT_RESULT_BFC0
;
114 if ((fpreads
& (1 << FRAG_ATTRIB_COL1
)) &&
115 (vp
->Base
.OutputsWritten
& (1 << VERT_RESULT_BFC1
)))
116 outputs
|= 1 << VERT_RESULT_BFC1
;
118 outputs
|= 1 << VERT_RESULT_HPOS
;
119 if (vp
->Base
.OutputsWritten
& (1 << VERT_RESULT_PSIZ
))
120 outputs
|= 1 << VERT_RESULT_PSIZ
;
126 static void t_inputs_outputs(struct r300_vertex_program_compiler
* c
)
130 GLuint OutputsWritten
, InputsRead
;
132 OutputsWritten
= c
->Base
.Program
.OutputsWritten
;
133 InputsRead
= c
->Base
.Program
.InputsRead
;
136 for (i
= 0; i
< VERT_ATTRIB_MAX
; i
++) {
137 if (InputsRead
& (1 << i
))
138 c
->code
->inputs
[i
] = ++cur_reg
;
140 c
->code
->inputs
[i
] = -1;
144 for (i
= 0; i
< VERT_RESULT_MAX
; i
++)
145 c
->code
->outputs
[i
] = -1;
147 assert(OutputsWritten
& (1 << VERT_RESULT_HPOS
));
149 if (OutputsWritten
& (1 << VERT_RESULT_HPOS
)) {
150 c
->code
->outputs
[VERT_RESULT_HPOS
] = cur_reg
++;
153 if (OutputsWritten
& (1 << VERT_RESULT_PSIZ
)) {
154 c
->code
->outputs
[VERT_RESULT_PSIZ
] = cur_reg
++;
157 /* If we're writing back facing colors we need to send
158 * four colors to make front/back face colors selection work.
159 * If the vertex program doesn't write all 4 colors, lets
160 * pretend it does by skipping output index reg so the colors
161 * get written into appropriate output vectors.
163 if (OutputsWritten
& (1 << VERT_RESULT_COL0
)) {
164 c
->code
->outputs
[VERT_RESULT_COL0
] = cur_reg
++;
165 } else if (OutputsWritten
& (1 << VERT_RESULT_BFC0
) ||
166 OutputsWritten
& (1 << VERT_RESULT_BFC1
)) {
170 if (OutputsWritten
& (1 << VERT_RESULT_COL1
)) {
171 c
->code
->outputs
[VERT_RESULT_COL1
] = cur_reg
++;
172 } else if (OutputsWritten
& (1 << VERT_RESULT_BFC0
) ||
173 OutputsWritten
& (1 << VERT_RESULT_BFC1
)) {
177 if (OutputsWritten
& (1 << VERT_RESULT_BFC0
)) {
178 c
->code
->outputs
[VERT_RESULT_BFC0
] = cur_reg
++;
179 } else if (OutputsWritten
& (1 << VERT_RESULT_BFC1
)) {
183 if (OutputsWritten
& (1 << VERT_RESULT_BFC1
)) {
184 c
->code
->outputs
[VERT_RESULT_BFC1
] = cur_reg
++;
185 } else if (OutputsWritten
& (1 << VERT_RESULT_BFC0
)) {
189 for (i
= VERT_RESULT_TEX0
; i
<= VERT_RESULT_TEX7
; i
++) {
190 if (OutputsWritten
& (1 << i
)) {
191 c
->code
->outputs
[i
] = cur_reg
++;
195 if (OutputsWritten
& (1 << VERT_RESULT_FOGC
)) {
196 c
->code
->outputs
[VERT_RESULT_FOGC
] = cur_reg
++;
201 * The NV_vertex_program spec mandates that all registers be
202 * initialized to zero. We do this here unconditionally.
204 * \note We rely on dead-code elimination in the compiler.
206 static void initialize_NV_registers(struct radeon_compiler
* compiler
)
209 struct rc_instruction
* inst
;
211 for(reg
= 0; reg
< 12; ++reg
) {
212 inst
= rc_insert_new_instruction(compiler
, &compiler
->Program
.Instructions
);
213 inst
->U
.I
.Opcode
= RC_OPCODE_MOV
;
214 inst
->U
.I
.DstReg
.File
= RC_FILE_TEMPORARY
;
215 inst
->U
.I
.DstReg
.Index
= reg
;
216 inst
->U
.I
.SrcReg
[0].File
= RC_FILE_NONE
;
217 inst
->U
.I
.SrcReg
[0].Swizzle
= RC_SWIZZLE_0000
;
220 inst
= rc_insert_new_instruction(compiler
, &compiler
->Program
.Instructions
);
221 inst
->U
.I
.Opcode
= RC_OPCODE_ARL
;
222 inst
->U
.I
.DstReg
.File
= RC_FILE_ADDRESS
;
223 inst
->U
.I
.DstReg
.Index
= 0;
224 inst
->U
.I
.DstReg
.WriteMask
= WRITEMASK_X
;
225 inst
->U
.I
.SrcReg
[0].File
= RC_FILE_NONE
;
226 inst
->U
.I
.SrcReg
[0].Swizzle
= RC_SWIZZLE_0000
;
229 static struct r300_vertex_program
*build_program(GLcontext
*ctx
,
230 struct r300_vertex_program_key
*wanted_key
,
231 const struct gl_vertex_program
*mesa_vp
)
233 struct r300_vertex_program
*vp
;
234 struct r300_vertex_program_compiler compiler
;
236 vp
= _mesa_calloc(sizeof(*vp
));
237 vp
->Base
= _mesa_clone_vertex_program(ctx
, mesa_vp
);
238 _mesa_memcpy(&vp
->key
, wanted_key
, sizeof(vp
->key
));
240 rc_init(&compiler
.Base
);
241 compiler
.Base
.Debug
= (RADEON_DEBUG
& RADEON_VERTS
) ? GL_TRUE
: GL_FALSE
;
243 compiler
.code
= &vp
->code
;
244 compiler
.RequiredOutputs
= compute_required_outputs(vp
->Base
, vp
->key
.FpReads
);
245 compiler
.SetHwInputOutput
= &t_inputs_outputs
;
247 if (compiler
.Base
.Debug
) {
248 fprintf(stderr
, "Initial vertex program:\n");
249 _mesa_print_program(&vp
->Base
->Base
);
253 if (mesa_vp
->IsPositionInvariant
) {
254 _mesa_insert_mvp_code(ctx
, vp
->Base
);
257 radeon_mesa_to_rc_program(&compiler
.Base
, &vp
->Base
->Base
);
259 if (mesa_vp
->IsNVProgram
)
260 initialize_NV_registers(&compiler
.Base
);
262 rc_move_output(&compiler
.Base
, VERT_RESULT_PSIZ
, VERT_RESULT_PSIZ
, WRITEMASK_X
);
264 if (vp
->key
.WPosAttr
!= FRAG_ATTRIB_MAX
) {
265 rc_copy_output(&compiler
.Base
,
267 vp
->key
.WPosAttr
- FRAG_ATTRIB_TEX0
+ VERT_RESULT_TEX0
);
270 if (vp
->key
.FogAttr
!= FRAG_ATTRIB_MAX
) {
271 rc_move_output(&compiler
.Base
,
273 vp
->key
.FogAttr
- FRAG_ATTRIB_TEX0
+ VERT_RESULT_TEX0
, WRITEMASK_X
);
276 r3xx_compile_vertex_program(&compiler
);
278 if (vp
->code
.constants
.Count
> ctx
->Const
.VertexProgram
.MaxParameters
) {
279 rc_error(&compiler
.Base
, "Program exceeds constant buffer size limit\n");
282 vp
->error
= compiler
.Base
.Error
;
284 vp
->Base
->Base
.InputsRead
= vp
->code
.InputsRead
;
285 vp
->Base
->Base
.OutputsWritten
= vp
->code
.OutputsWritten
;
287 rc_destroy(&compiler
.Base
);
292 struct r300_vertex_program
* r300SelectAndTranslateVertexShader(GLcontext
*ctx
)
294 r300ContextPtr r300
= R300_CONTEXT(ctx
);
295 struct r300_vertex_program_key wanted_key
= { 0 };
296 struct r300_vertex_program_cont
*vpc
;
297 struct r300_vertex_program
*vp
;
299 vpc
= (struct r300_vertex_program_cont
*)ctx
->VertexProgram
._Current
;
301 if (!r300
->selected_fp
) {
302 /* This can happen when GetProgramiv is called to check
303 * whether the program runs natively.
305 * To be honest, this is not a very good solution,
306 * but solving the problem of reporting good values
307 * for those queries is tough anyway considering that
308 * we recompile vertex programs based on the precise
309 * fragment program that is in use.
311 r300SelectAndTranslateFragmentShader(ctx
);
314 wanted_key
.FpReads
= r300
->selected_fp
->InputsRead
;
315 wanted_key
.FogAttr
= r300
->selected_fp
->fog_attr
;
316 wanted_key
.WPosAttr
= r300
->selected_fp
->wpos_attr
;
318 for (vp
= vpc
->progs
; vp
; vp
= vp
->next
) {
319 if (_mesa_memcmp(&vp
->key
, &wanted_key
, sizeof(wanted_key
))
321 return r300
->selected_vp
= vp
;
325 vp
= build_program(ctx
, &wanted_key
, &vpc
->mesa_program
);
326 vp
->next
= vpc
->progs
;
329 return r300
->selected_vp
= vp
;
332 #define bump_vpu_count(ptr, new_count) do { \
333 drm_r300_cmd_header_t* _p=((drm_r300_cmd_header_t*)(ptr)); \
334 int _nc=(new_count)/4; \
335 if(_nc>_p->vpu.count)_p->vpu.count=_nc; \
338 static void r300EmitVertexProgram(r300ContextPtr r300
, int dest
, struct r300_vertex_program_code
*code
)
342 assert((code
->length
> 0) && (code
->length
% 4 == 0));
344 R300_STATECHANGE( r300
, vap_flush
);
346 switch ((dest
>> 8) & 0xf) {
348 R300_STATECHANGE(r300
, vpi
);
349 for (i
= 0; i
< code
->length
; i
++)
350 r300
->hw
.vpi
.cmd
[R300_VPI_INSTR_0
+ i
+ 4 * (dest
& 0xff)] = (code
->body
.d
[i
]);
351 bump_vpu_count(r300
->hw
.vpi
.cmd
, code
->length
+ 4 * (dest
& 0xff));
354 R300_STATECHANGE(r300
, vpp
);
355 for (i
= 0; i
< code
->length
; i
++)
356 r300
->hw
.vpp
.cmd
[R300_VPP_PARAM_0
+ i
+ 4 * (dest
& 0xff)] = (code
->body
.d
[i
]);
357 bump_vpu_count(r300
->hw
.vpp
.cmd
, code
->length
+ 4 * (dest
& 0xff));
360 R300_STATECHANGE(r300
, vps
);
361 for (i
= 0; i
< code
->length
; i
++)
362 r300
->hw
.vps
.cmd
[1 + i
+ 4 * (dest
& 0xff)] = (code
->body
.d
[i
]);
363 bump_vpu_count(r300
->hw
.vps
.cmd
, code
->length
+ 4 * (dest
& 0xff));
366 fprintf(stderr
, "%s:%s don't know how to handle dest %04x\n", __FILE__
, __FUNCTION__
, dest
);
371 void r300SetupVertexProgram(r300ContextPtr rmesa
)
373 GLcontext
*ctx
= rmesa
->radeon
.glCtx
;
374 struct r300_vertex_program
*prog
= rmesa
->selected_vp
;
378 /* Reset state, in case we don't use something */
379 ((drm_r300_cmd_header_t
*) rmesa
->hw
.vpp
.cmd
)->vpu
.count
= 0;
380 ((drm_r300_cmd_header_t
*) rmesa
->hw
.vpi
.cmd
)->vpu
.count
= 0;
381 ((drm_r300_cmd_header_t
*) rmesa
->hw
.vps
.cmd
)->vpu
.count
= 0;
383 R300_STATECHANGE(rmesa
, vap_flush
);
384 R300_STATECHANGE(rmesa
, vpp
);
385 param_count
= r300VertexProgUpdateParams(ctx
, prog
, (float *)&rmesa
->hw
.vpp
.cmd
[R300_VPP_PARAM_0
]);
386 bump_vpu_count(rmesa
->hw
.vpp
.cmd
, param_count
);
389 r300EmitVertexProgram(rmesa
, R300_PVS_CODE_START
, &(prog
->code
));
390 inst_count
= (prog
->code
.length
/ 4) - 1;
392 r300VapCntl(rmesa
, _mesa_bitcount(prog
->code
.InputsRead
),
393 _mesa_bitcount(prog
->code
.OutputsWritten
), prog
->code
.num_temporaries
);
395 R300_STATECHANGE(rmesa
, pvs
);
396 rmesa
->hw
.pvs
.cmd
[R300_PVS_CNTL_1
] = (0 << R300_PVS_FIRST_INST_SHIFT
) | (inst_count
<< R300_PVS_XYZW_VALID_INST_SHIFT
) |
397 (inst_count
<< R300_PVS_LAST_INST_SHIFT
);
399 rmesa
->hw
.pvs
.cmd
[R300_PVS_CNTL_2
] = (0 << R300_PVS_CONST_BASE_OFFSET_SHIFT
) | (param_count
<< R300_PVS_MAX_CONST_ADDR_SHIFT
);
400 rmesa
->hw
.pvs
.cmd
[R300_PVS_CNTL_3
] = (inst_count
<< R300_PVS_LAST_VTX_SRC_INST_SHIFT
);