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implement arb_vertex_program in hw for r200. Code contains still some hacks, generic...
[mesa.git] / src / mesa / drivers / dri / r200 / r200_state.c
1 /* $XFree86$ */
2 /**************************************************************************
3
4 Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
5
6 The Weather Channel (TM) funded Tungsten Graphics to develop the
7 initial release of the Radeon 8500 driver under the XFree86 license.
8 This notice must be preserved.
9
10 Permission is hereby granted, free of charge, to any person obtaining
11 a copy of this software and associated documentation files (the
12 "Software"), to deal in the Software without restriction, including
13 without limitation the rights to use, copy, modify, merge, publish,
14 distribute, sublicense, and/or sell copies of the Software, and to
15 permit persons to whom the Software is furnished to do so, subject to
16 the following conditions:
17
18 The above copyright notice and this permission notice (including the
19 next paragraph) shall be included in all copies or substantial
20 portions of the Software.
21
22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
25 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
26 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29
30 **************************************************************************/
31
32 /*
33 * Authors:
34 * Keith Whitwell <keith@tungstengraphics.com>
35 */
36
37 #include "glheader.h"
38 #include "imports.h"
39 #include "api_arrayelt.h"
40 #include "enums.h"
41 #include "colormac.h"
42 #include "light.h"
43
44 #include "swrast/swrast.h"
45 #include "array_cache/acache.h"
46 #include "tnl/tnl.h"
47 #include "tnl/t_pipeline.h"
48 #include "swrast_setup/swrast_setup.h"
49
50 #include "r200_context.h"
51 #include "r200_ioctl.h"
52 #include "r200_state.h"
53 #include "r200_tcl.h"
54 #include "r200_tex.h"
55 #include "r200_swtcl.h"
56 #include "r200_vtxfmt.h"
57 #include "r200_vertprog.h"
58
59 #include "drirenderbuffer.h"
60
61
62 /* =============================================================
63 * Alpha blending
64 */
65
66 static void r200AlphaFunc( GLcontext *ctx, GLenum func, GLfloat ref )
67 {
68 r200ContextPtr rmesa = R200_CONTEXT(ctx);
69 int pp_misc = rmesa->hw.ctx.cmd[CTX_PP_MISC];
70 GLubyte refByte;
71
72 CLAMPED_FLOAT_TO_UBYTE(refByte, ref);
73
74 R200_STATECHANGE( rmesa, ctx );
75
76 pp_misc &= ~(R200_ALPHA_TEST_OP_MASK | R200_REF_ALPHA_MASK);
77 pp_misc |= (refByte & R200_REF_ALPHA_MASK);
78
79 switch ( func ) {
80 case GL_NEVER:
81 pp_misc |= R200_ALPHA_TEST_FAIL;
82 break;
83 case GL_LESS:
84 pp_misc |= R200_ALPHA_TEST_LESS;
85 break;
86 case GL_EQUAL:
87 pp_misc |= R200_ALPHA_TEST_EQUAL;
88 break;
89 case GL_LEQUAL:
90 pp_misc |= R200_ALPHA_TEST_LEQUAL;
91 break;
92 case GL_GREATER:
93 pp_misc |= R200_ALPHA_TEST_GREATER;
94 break;
95 case GL_NOTEQUAL:
96 pp_misc |= R200_ALPHA_TEST_NEQUAL;
97 break;
98 case GL_GEQUAL:
99 pp_misc |= R200_ALPHA_TEST_GEQUAL;
100 break;
101 case GL_ALWAYS:
102 pp_misc |= R200_ALPHA_TEST_PASS;
103 break;
104 }
105
106 rmesa->hw.ctx.cmd[CTX_PP_MISC] = pp_misc;
107 }
108
109 static void r200BlendColor( GLcontext *ctx, const GLfloat cf[4] )
110 {
111 GLubyte color[4];
112 r200ContextPtr rmesa = R200_CONTEXT(ctx);
113 R200_STATECHANGE( rmesa, ctx );
114 CLAMPED_FLOAT_TO_UBYTE(color[0], cf[0]);
115 CLAMPED_FLOAT_TO_UBYTE(color[1], cf[1]);
116 CLAMPED_FLOAT_TO_UBYTE(color[2], cf[2]);
117 CLAMPED_FLOAT_TO_UBYTE(color[3], cf[3]);
118 if (rmesa->r200Screen->drmSupportsBlendColor)
119 rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCOLOR] = r200PackColor( 4, color[0], color[1], color[2], color[3] );
120 }
121
122 /**
123 * Calculate the hardware blend factor setting. This same function is used
124 * for source and destination of both alpha and RGB.
125 *
126 * \returns
127 * The hardware register value for the specified blend factor. This value
128 * will need to be shifted into the correct position for either source or
129 * destination factor.
130 *
131 * \todo
132 * Since the two cases where source and destination are handled differently
133 * are essentially error cases, they should never happen. Determine if these
134 * cases can be removed.
135 */
136 static int blend_factor( GLenum factor, GLboolean is_src )
137 {
138 int func;
139
140 switch ( factor ) {
141 case GL_ZERO:
142 func = R200_BLEND_GL_ZERO;
143 break;
144 case GL_ONE:
145 func = R200_BLEND_GL_ONE;
146 break;
147 case GL_DST_COLOR:
148 func = R200_BLEND_GL_DST_COLOR;
149 break;
150 case GL_ONE_MINUS_DST_COLOR:
151 func = R200_BLEND_GL_ONE_MINUS_DST_COLOR;
152 break;
153 case GL_SRC_COLOR:
154 func = R200_BLEND_GL_SRC_COLOR;
155 break;
156 case GL_ONE_MINUS_SRC_COLOR:
157 func = R200_BLEND_GL_ONE_MINUS_SRC_COLOR;
158 break;
159 case GL_SRC_ALPHA:
160 func = R200_BLEND_GL_SRC_ALPHA;
161 break;
162 case GL_ONE_MINUS_SRC_ALPHA:
163 func = R200_BLEND_GL_ONE_MINUS_SRC_ALPHA;
164 break;
165 case GL_DST_ALPHA:
166 func = R200_BLEND_GL_DST_ALPHA;
167 break;
168 case GL_ONE_MINUS_DST_ALPHA:
169 func = R200_BLEND_GL_ONE_MINUS_DST_ALPHA;
170 break;
171 case GL_SRC_ALPHA_SATURATE:
172 func = (is_src) ? R200_BLEND_GL_SRC_ALPHA_SATURATE : R200_BLEND_GL_ZERO;
173 break;
174 case GL_CONSTANT_COLOR:
175 func = R200_BLEND_GL_CONST_COLOR;
176 break;
177 case GL_ONE_MINUS_CONSTANT_COLOR:
178 func = R200_BLEND_GL_ONE_MINUS_CONST_COLOR;
179 break;
180 case GL_CONSTANT_ALPHA:
181 func = R200_BLEND_GL_CONST_ALPHA;
182 break;
183 case GL_ONE_MINUS_CONSTANT_ALPHA:
184 func = R200_BLEND_GL_ONE_MINUS_CONST_ALPHA;
185 break;
186 default:
187 func = (is_src) ? R200_BLEND_GL_ONE : R200_BLEND_GL_ZERO;
188 }
189 return func;
190 }
191
192 /**
193 * Sets both the blend equation and the blend function.
194 * This is done in a single
195 * function because some blend equations (i.e., \c GL_MIN and \c GL_MAX)
196 * change the interpretation of the blend function.
197 * Also, make sure that blend function and blend equation are set to their default
198 * value if color blending is not enabled, since at least blend equations GL_MIN
199 * and GL_FUNC_REVERSE_SUBTRACT will cause wrong results otherwise for
200 * unknown reasons.
201 */
202 static void r200_set_blend_state( GLcontext * ctx )
203 {
204 r200ContextPtr rmesa = R200_CONTEXT(ctx);
205 GLuint cntl = rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &
206 ~(R200_ROP_ENABLE | R200_ALPHA_BLEND_ENABLE | R200_SEPARATE_ALPHA_ENABLE);
207
208 int func = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
209 (R200_BLEND_GL_ZERO << R200_DST_BLEND_SHIFT);
210 int eqn = R200_COMB_FCN_ADD_CLAMP;
211 int funcA = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
212 (R200_BLEND_GL_ZERO << R200_DST_BLEND_SHIFT);
213 int eqnA = R200_COMB_FCN_ADD_CLAMP;
214
215 R200_STATECHANGE( rmesa, ctx );
216
217 if (rmesa->r200Screen->drmSupportsBlendColor) {
218 if (ctx->Color._LogicOpEnabled) {
219 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl | R200_ROP_ENABLE;
220 rmesa->hw.ctx.cmd[CTX_RB3D_ABLENDCNTL] = eqn | func;
221 rmesa->hw.ctx.cmd[CTX_RB3D_CBLENDCNTL] = eqn | func;
222 return;
223 } else if (ctx->Color.BlendEnabled) {
224 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl | R200_ALPHA_BLEND_ENABLE | R200_SEPARATE_ALPHA_ENABLE;
225 }
226 else {
227 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl;
228 rmesa->hw.ctx.cmd[CTX_RB3D_ABLENDCNTL] = eqn | func;
229 rmesa->hw.ctx.cmd[CTX_RB3D_CBLENDCNTL] = eqn | func;
230 return;
231 }
232 }
233 else {
234 if (ctx->Color._LogicOpEnabled) {
235 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl | R200_ROP_ENABLE;
236 rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCNTL] = eqn | func;
237 return;
238 } else if (ctx->Color.BlendEnabled) {
239 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl | R200_ALPHA_BLEND_ENABLE;
240 }
241 else {
242 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = cntl;
243 rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCNTL] = eqn | func;
244 return;
245 }
246 }
247
248 func = (blend_factor( ctx->Color.BlendSrcRGB, GL_TRUE ) << R200_SRC_BLEND_SHIFT) |
249 (blend_factor( ctx->Color.BlendDstRGB, GL_FALSE ) << R200_DST_BLEND_SHIFT);
250
251 switch(ctx->Color.BlendEquationRGB) {
252 case GL_FUNC_ADD:
253 eqn = R200_COMB_FCN_ADD_CLAMP;
254 break;
255
256 case GL_FUNC_SUBTRACT:
257 eqn = R200_COMB_FCN_SUB_CLAMP;
258 break;
259
260 case GL_FUNC_REVERSE_SUBTRACT:
261 eqn = R200_COMB_FCN_RSUB_CLAMP;
262 break;
263
264 case GL_MIN:
265 eqn = R200_COMB_FCN_MIN;
266 func = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
267 (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
268 break;
269
270 case GL_MAX:
271 eqn = R200_COMB_FCN_MAX;
272 func = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
273 (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
274 break;
275
276 default:
277 fprintf( stderr, "[%s:%u] Invalid RGB blend equation (0x%04x).\n",
278 __FUNCTION__, __LINE__, ctx->Color.BlendEquationRGB );
279 return;
280 }
281
282 if (!rmesa->r200Screen->drmSupportsBlendColor) {
283 rmesa->hw.ctx.cmd[CTX_RB3D_BLENDCNTL] = eqn | func;
284 return;
285 }
286
287 funcA = (blend_factor( ctx->Color.BlendSrcA, GL_TRUE ) << R200_SRC_BLEND_SHIFT) |
288 (blend_factor( ctx->Color.BlendDstA, GL_FALSE ) << R200_DST_BLEND_SHIFT);
289
290 switch(ctx->Color.BlendEquationA) {
291 case GL_FUNC_ADD:
292 eqnA = R200_COMB_FCN_ADD_CLAMP;
293 break;
294
295 case GL_FUNC_SUBTRACT:
296 eqnA = R200_COMB_FCN_SUB_CLAMP;
297 break;
298
299 case GL_FUNC_REVERSE_SUBTRACT:
300 eqnA = R200_COMB_FCN_RSUB_CLAMP;
301 break;
302
303 case GL_MIN:
304 eqnA = R200_COMB_FCN_MIN;
305 funcA = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
306 (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
307 break;
308
309 case GL_MAX:
310 eqnA = R200_COMB_FCN_MAX;
311 funcA = (R200_BLEND_GL_ONE << R200_SRC_BLEND_SHIFT) |
312 (R200_BLEND_GL_ONE << R200_DST_BLEND_SHIFT);
313 break;
314
315 default:
316 fprintf( stderr, "[%s:%u] Invalid A blend equation (0x%04x).\n",
317 __FUNCTION__, __LINE__, ctx->Color.BlendEquationA );
318 return;
319 }
320
321 rmesa->hw.ctx.cmd[CTX_RB3D_ABLENDCNTL] = eqnA | funcA;
322 rmesa->hw.ctx.cmd[CTX_RB3D_CBLENDCNTL] = eqn | func;
323
324 }
325
326 static void r200BlendEquationSeparate( GLcontext *ctx,
327 GLenum modeRGB, GLenum modeA )
328 {
329 r200_set_blend_state( ctx );
330 }
331
332 static void r200BlendFuncSeparate( GLcontext *ctx,
333 GLenum sfactorRGB, GLenum dfactorRGB,
334 GLenum sfactorA, GLenum dfactorA )
335 {
336 r200_set_blend_state( ctx );
337 }
338
339
340 /* =============================================================
341 * Depth testing
342 */
343
344 static void r200DepthFunc( GLcontext *ctx, GLenum func )
345 {
346 r200ContextPtr rmesa = R200_CONTEXT(ctx);
347
348 R200_STATECHANGE( rmesa, ctx );
349 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] &= ~R200_Z_TEST_MASK;
350
351 switch ( ctx->Depth.Func ) {
352 case GL_NEVER:
353 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_NEVER;
354 break;
355 case GL_LESS:
356 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_LESS;
357 break;
358 case GL_EQUAL:
359 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_EQUAL;
360 break;
361 case GL_LEQUAL:
362 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_LEQUAL;
363 break;
364 case GL_GREATER:
365 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_GREATER;
366 break;
367 case GL_NOTEQUAL:
368 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_NEQUAL;
369 break;
370 case GL_GEQUAL:
371 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_GEQUAL;
372 break;
373 case GL_ALWAYS:
374 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_TEST_ALWAYS;
375 break;
376 }
377 }
378
379 static void r200ClearDepth( GLcontext *ctx, GLclampd d )
380 {
381 r200ContextPtr rmesa = R200_CONTEXT(ctx);
382 GLuint format = (rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] &
383 R200_DEPTH_FORMAT_MASK);
384
385 switch ( format ) {
386 case R200_DEPTH_FORMAT_16BIT_INT_Z:
387 rmesa->state.depth.clear = d * 0x0000ffff;
388 break;
389 case R200_DEPTH_FORMAT_24BIT_INT_Z:
390 rmesa->state.depth.clear = d * 0x00ffffff;
391 break;
392 }
393 }
394
395 static void r200DepthMask( GLcontext *ctx, GLboolean flag )
396 {
397 r200ContextPtr rmesa = R200_CONTEXT(ctx);
398 R200_STATECHANGE( rmesa, ctx );
399
400 if ( ctx->Depth.Mask ) {
401 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_Z_WRITE_ENABLE;
402 } else {
403 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] &= ~R200_Z_WRITE_ENABLE;
404 }
405 }
406
407
408 /* =============================================================
409 * Fog
410 */
411
412
413 static void r200Fogfv( GLcontext *ctx, GLenum pname, const GLfloat *param )
414 {
415 r200ContextPtr rmesa = R200_CONTEXT(ctx);
416 union { int i; float f; } c, d;
417 GLchan col[4];
418 GLuint i;
419
420 c.i = rmesa->hw.fog.cmd[FOG_C];
421 d.i = rmesa->hw.fog.cmd[FOG_D];
422
423 switch (pname) {
424 case GL_FOG_MODE:
425 if (!ctx->Fog.Enabled)
426 return;
427 R200_STATECHANGE(rmesa, tcl);
428 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~R200_TCL_FOG_MASK;
429 switch (ctx->Fog.Mode) {
430 case GL_LINEAR:
431 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= R200_TCL_FOG_LINEAR;
432 if (ctx->Fog.Start == ctx->Fog.End) {
433 c.f = 1.0F;
434 d.f = 1.0F;
435 }
436 else {
437 c.f = ctx->Fog.End/(ctx->Fog.End-ctx->Fog.Start);
438 d.f = -1.0/(ctx->Fog.End-ctx->Fog.Start);
439 }
440 break;
441 case GL_EXP:
442 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= R200_TCL_FOG_EXP;
443 c.f = 0.0;
444 d.f = -ctx->Fog.Density;
445 break;
446 case GL_EXP2:
447 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= R200_TCL_FOG_EXP2;
448 c.f = 0.0;
449 d.f = -(ctx->Fog.Density * ctx->Fog.Density);
450 break;
451 default:
452 return;
453 }
454 break;
455 case GL_FOG_DENSITY:
456 switch (ctx->Fog.Mode) {
457 case GL_EXP:
458 c.f = 0.0;
459 d.f = -ctx->Fog.Density;
460 break;
461 case GL_EXP2:
462 c.f = 0.0;
463 d.f = -(ctx->Fog.Density * ctx->Fog.Density);
464 break;
465 default:
466 break;
467 }
468 break;
469 case GL_FOG_START:
470 case GL_FOG_END:
471 if (ctx->Fog.Mode == GL_LINEAR) {
472 if (ctx->Fog.Start == ctx->Fog.End) {
473 c.f = 1.0F;
474 d.f = 1.0F;
475 } else {
476 c.f = ctx->Fog.End/(ctx->Fog.End-ctx->Fog.Start);
477 d.f = -1.0/(ctx->Fog.End-ctx->Fog.Start);
478 }
479 }
480 break;
481 case GL_FOG_COLOR:
482 R200_STATECHANGE( rmesa, ctx );
483 UNCLAMPED_FLOAT_TO_RGB_CHAN( col, ctx->Fog.Color );
484 i = r200PackColor( 4, col[0], col[1], col[2], 0 );
485 rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] &= ~R200_FOG_COLOR_MASK;
486 rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] |= i;
487 break;
488 case GL_FOG_COORD_SRC: {
489 GLuint out_0 = rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0];
490 GLuint fog = rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR];
491
492 fog &= ~R200_FOG_USE_MASK;
493 if ( ctx->Fog.FogCoordinateSource == GL_FOG_COORD ) {
494 fog |= R200_FOG_USE_VTX_FOG;
495 out_0 |= R200_VTX_DISCRETE_FOG;
496 }
497 else {
498 fog |= R200_FOG_USE_SPEC_ALPHA;
499 out_0 &= ~R200_VTX_DISCRETE_FOG;
500 }
501
502 if ( fog != rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] ) {
503 R200_STATECHANGE( rmesa, ctx );
504 rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] = fog;
505 }
506
507 if (out_0 != rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0]) {
508 R200_STATECHANGE( rmesa, vtx );
509 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] = out_0;
510 }
511
512 break;
513 }
514 default:
515 return;
516 }
517
518 if (c.i != rmesa->hw.fog.cmd[FOG_C] || d.i != rmesa->hw.fog.cmd[FOG_D]) {
519 R200_STATECHANGE( rmesa, fog );
520 rmesa->hw.fog.cmd[FOG_C] = c.i;
521 rmesa->hw.fog.cmd[FOG_D] = d.i;
522 }
523 }
524
525
526 /* =============================================================
527 * Scissoring
528 */
529
530
531 static GLboolean intersect_rect( drm_clip_rect_t *out,
532 drm_clip_rect_t *a,
533 drm_clip_rect_t *b )
534 {
535 *out = *a;
536 if ( b->x1 > out->x1 ) out->x1 = b->x1;
537 if ( b->y1 > out->y1 ) out->y1 = b->y1;
538 if ( b->x2 < out->x2 ) out->x2 = b->x2;
539 if ( b->y2 < out->y2 ) out->y2 = b->y2;
540 if ( out->x1 >= out->x2 ) return GL_FALSE;
541 if ( out->y1 >= out->y2 ) return GL_FALSE;
542 return GL_TRUE;
543 }
544
545
546 void r200RecalcScissorRects( r200ContextPtr rmesa )
547 {
548 drm_clip_rect_t *out;
549 int i;
550
551 /* Grow cliprect store?
552 */
553 if (rmesa->state.scissor.numAllocedClipRects < rmesa->numClipRects) {
554 while (rmesa->state.scissor.numAllocedClipRects < rmesa->numClipRects) {
555 rmesa->state.scissor.numAllocedClipRects += 1; /* zero case */
556 rmesa->state.scissor.numAllocedClipRects *= 2;
557 }
558
559 if (rmesa->state.scissor.pClipRects)
560 FREE(rmesa->state.scissor.pClipRects);
561
562 rmesa->state.scissor.pClipRects =
563 MALLOC( rmesa->state.scissor.numAllocedClipRects *
564 sizeof(drm_clip_rect_t) );
565
566 if ( rmesa->state.scissor.pClipRects == NULL ) {
567 rmesa->state.scissor.numAllocedClipRects = 0;
568 return;
569 }
570 }
571
572 out = rmesa->state.scissor.pClipRects;
573 rmesa->state.scissor.numClipRects = 0;
574
575 for ( i = 0 ; i < rmesa->numClipRects ; i++ ) {
576 if ( intersect_rect( out,
577 &rmesa->pClipRects[i],
578 &rmesa->state.scissor.rect ) ) {
579 rmesa->state.scissor.numClipRects++;
580 out++;
581 }
582 }
583 }
584
585
586 static void r200UpdateScissor( GLcontext *ctx )
587 {
588 r200ContextPtr rmesa = R200_CONTEXT(ctx);
589
590 if ( rmesa->dri.drawable ) {
591 __DRIdrawablePrivate *dPriv = rmesa->dri.drawable;
592
593 int x = ctx->Scissor.X;
594 int y = dPriv->h - ctx->Scissor.Y - ctx->Scissor.Height;
595 int w = ctx->Scissor.X + ctx->Scissor.Width - 1;
596 int h = dPriv->h - ctx->Scissor.Y - 1;
597
598 rmesa->state.scissor.rect.x1 = x + dPriv->x;
599 rmesa->state.scissor.rect.y1 = y + dPriv->y;
600 rmesa->state.scissor.rect.x2 = w + dPriv->x + 1;
601 rmesa->state.scissor.rect.y2 = h + dPriv->y + 1;
602
603 r200RecalcScissorRects( rmesa );
604 }
605 }
606
607
608 static void r200Scissor( GLcontext *ctx,
609 GLint x, GLint y, GLsizei w, GLsizei h )
610 {
611 r200ContextPtr rmesa = R200_CONTEXT(ctx);
612
613 if ( ctx->Scissor.Enabled ) {
614 R200_FIREVERTICES( rmesa ); /* don't pipeline cliprect changes */
615 r200UpdateScissor( ctx );
616 }
617
618 }
619
620
621 /* =============================================================
622 * Culling
623 */
624
625 static void r200CullFace( GLcontext *ctx, GLenum unused )
626 {
627 r200ContextPtr rmesa = R200_CONTEXT(ctx);
628 GLuint s = rmesa->hw.set.cmd[SET_SE_CNTL];
629 GLuint t = rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL];
630
631 s |= R200_FFACE_SOLID | R200_BFACE_SOLID;
632 t &= ~(R200_CULL_FRONT | R200_CULL_BACK);
633
634 if ( ctx->Polygon.CullFlag ) {
635 switch ( ctx->Polygon.CullFaceMode ) {
636 case GL_FRONT:
637 s &= ~R200_FFACE_SOLID;
638 t |= R200_CULL_FRONT;
639 break;
640 case GL_BACK:
641 s &= ~R200_BFACE_SOLID;
642 t |= R200_CULL_BACK;
643 break;
644 case GL_FRONT_AND_BACK:
645 s &= ~(R200_FFACE_SOLID | R200_BFACE_SOLID);
646 t |= (R200_CULL_FRONT | R200_CULL_BACK);
647 break;
648 }
649 }
650
651 if ( rmesa->hw.set.cmd[SET_SE_CNTL] != s ) {
652 R200_STATECHANGE(rmesa, set );
653 rmesa->hw.set.cmd[SET_SE_CNTL] = s;
654 }
655
656 if ( rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] != t ) {
657 R200_STATECHANGE(rmesa, tcl );
658 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] = t;
659 }
660 }
661
662 static void r200FrontFace( GLcontext *ctx, GLenum mode )
663 {
664 r200ContextPtr rmesa = R200_CONTEXT(ctx);
665
666 R200_STATECHANGE( rmesa, set );
667 rmesa->hw.set.cmd[SET_SE_CNTL] &= ~R200_FFACE_CULL_DIR_MASK;
668
669 R200_STATECHANGE( rmesa, tcl );
670 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~R200_CULL_FRONT_IS_CCW;
671
672 switch ( mode ) {
673 case GL_CW:
674 rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_FFACE_CULL_CW;
675 break;
676 case GL_CCW:
677 rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_FFACE_CULL_CCW;
678 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= R200_CULL_FRONT_IS_CCW;
679 break;
680 }
681 }
682
683 /* =============================================================
684 * Point state
685 */
686 static void r200PointSize( GLcontext *ctx, GLfloat size )
687 {
688 r200ContextPtr rmesa = R200_CONTEXT(ctx);
689
690 R200_STATECHANGE( rmesa, cst );
691 rmesa->hw.cst.cmd[CST_RE_POINTSIZE] &= ~0xffff;
692 rmesa->hw.cst.cmd[CST_RE_POINTSIZE] |= ((GLuint)(ctx->Point.Size * 16.0));
693 }
694
695 /* =============================================================
696 * Line state
697 */
698 static void r200LineWidth( GLcontext *ctx, GLfloat widthf )
699 {
700 r200ContextPtr rmesa = R200_CONTEXT(ctx);
701
702 R200_STATECHANGE( rmesa, lin );
703 R200_STATECHANGE( rmesa, set );
704
705 /* Line width is stored in U6.4 format.
706 */
707 rmesa->hw.lin.cmd[LIN_SE_LINE_WIDTH] &= ~0xffff;
708 rmesa->hw.lin.cmd[LIN_SE_LINE_WIDTH] |= (GLuint)(ctx->Line._Width * 16.0);
709
710 if ( widthf > 1.0 ) {
711 rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_WIDELINE_ENABLE;
712 } else {
713 rmesa->hw.set.cmd[SET_SE_CNTL] &= ~R200_WIDELINE_ENABLE;
714 }
715 }
716
717 static void r200LineStipple( GLcontext *ctx, GLint factor, GLushort pattern )
718 {
719 r200ContextPtr rmesa = R200_CONTEXT(ctx);
720
721 R200_STATECHANGE( rmesa, lin );
722 rmesa->hw.lin.cmd[LIN_RE_LINE_PATTERN] =
723 ((((GLuint)factor & 0xff) << 16) | ((GLuint)pattern));
724 }
725
726
727 /* =============================================================
728 * Masks
729 */
730 static void r200ColorMask( GLcontext *ctx,
731 GLboolean r, GLboolean g,
732 GLboolean b, GLboolean a )
733 {
734 r200ContextPtr rmesa = R200_CONTEXT(ctx);
735 GLuint mask = r200PackColor( rmesa->r200Screen->cpp,
736 ctx->Color.ColorMask[RCOMP],
737 ctx->Color.ColorMask[GCOMP],
738 ctx->Color.ColorMask[BCOMP],
739 ctx->Color.ColorMask[ACOMP] );
740
741 GLuint flag = rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] & ~R200_PLANE_MASK_ENABLE;
742
743 if (!(r && g && b && a))
744 flag |= R200_PLANE_MASK_ENABLE;
745
746 if ( rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] != flag ) {
747 R200_STATECHANGE( rmesa, ctx );
748 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] = flag;
749 }
750
751 if ( rmesa->hw.msk.cmd[MSK_RB3D_PLANEMASK] != mask ) {
752 R200_STATECHANGE( rmesa, msk );
753 rmesa->hw.msk.cmd[MSK_RB3D_PLANEMASK] = mask;
754 }
755 }
756
757
758 /* =============================================================
759 * Polygon state
760 */
761
762 static void r200PolygonOffset( GLcontext *ctx,
763 GLfloat factor, GLfloat units )
764 {
765 r200ContextPtr rmesa = R200_CONTEXT(ctx);
766 float_ui32_type constant = { units * rmesa->state.depth.scale };
767 float_ui32_type factoru = { factor };
768
769 /* factor *= 2; */
770 /* constant *= 2; */
771
772 /* fprintf(stderr, "%s f:%f u:%f\n", __FUNCTION__, factor, constant); */
773
774 R200_STATECHANGE( rmesa, zbs );
775 rmesa->hw.zbs.cmd[ZBS_SE_ZBIAS_FACTOR] = factoru.ui32;
776 rmesa->hw.zbs.cmd[ZBS_SE_ZBIAS_CONSTANT] = constant.ui32;
777 }
778
779 static void r200PolygonStipple( GLcontext *ctx, const GLubyte *mask )
780 {
781 r200ContextPtr rmesa = R200_CONTEXT(ctx);
782 GLuint i;
783 drm_radeon_stipple_t stipple;
784
785 /* Must flip pattern upside down.
786 */
787 for ( i = 0 ; i < 32 ; i++ ) {
788 rmesa->state.stipple.mask[31 - i] = ((GLuint *) mask)[i];
789 }
790
791 /* TODO: push this into cmd mechanism
792 */
793 R200_FIREVERTICES( rmesa );
794 LOCK_HARDWARE( rmesa );
795
796 /* FIXME: Use window x,y offsets into stipple RAM.
797 */
798 stipple.mask = rmesa->state.stipple.mask;
799 drmCommandWrite( rmesa->dri.fd, DRM_RADEON_STIPPLE,
800 &stipple, sizeof(stipple) );
801 UNLOCK_HARDWARE( rmesa );
802 }
803
804 static void r200PolygonMode( GLcontext *ctx, GLenum face, GLenum mode )
805 {
806 r200ContextPtr rmesa = R200_CONTEXT(ctx);
807 GLboolean flag = (ctx->_TriangleCaps & DD_TRI_UNFILLED) != 0;
808
809 /* Can't generally do unfilled via tcl, but some good special
810 * cases work.
811 */
812 TCL_FALLBACK( ctx, R200_TCL_FALLBACK_UNFILLED, flag);
813 if (rmesa->TclFallback) {
814 r200ChooseRenderState( ctx );
815 r200ChooseVertexState( ctx );
816 }
817 }
818
819
820 /* =============================================================
821 * Rendering attributes
822 *
823 * We really don't want to recalculate all this every time we bind a
824 * texture. These things shouldn't change all that often, so it makes
825 * sense to break them out of the core texture state update routines.
826 */
827
828 /* Examine lighting and texture state to determine if separate specular
829 * should be enabled.
830 */
831 static void r200UpdateSpecular( GLcontext *ctx )
832 {
833 r200ContextPtr rmesa = R200_CONTEXT(ctx);
834 u_int32_t p = rmesa->hw.ctx.cmd[CTX_PP_CNTL];
835
836 R200_STATECHANGE( rmesa, tcl );
837 R200_STATECHANGE( rmesa, vtx );
838
839 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] &= ~(3<<R200_VTX_COLOR_0_SHIFT);
840 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] &= ~(3<<R200_VTX_COLOR_1_SHIFT);
841 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL] &= ~R200_OUTPUT_COLOR_0;
842 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL] &= ~R200_OUTPUT_COLOR_1;
843 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] &= ~R200_LIGHTING_ENABLE;
844
845 p &= ~R200_SPECULAR_ENABLE;
846
847 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_DIFFUSE_SPECULAR_COMBINE;
848
849
850 if (ctx->Light.Enabled &&
851 ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) {
852 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] |=
853 ((R200_VTX_FP_RGBA << R200_VTX_COLOR_0_SHIFT) |
854 (R200_VTX_FP_RGBA << R200_VTX_COLOR_1_SHIFT));
855 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL] |= R200_OUTPUT_COLOR_0;
856 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL] |= R200_OUTPUT_COLOR_1;
857 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_LIGHTING_ENABLE;
858 p |= R200_SPECULAR_ENABLE;
859 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] &=
860 ~R200_DIFFUSE_SPECULAR_COMBINE;
861 }
862 else if (ctx->Light.Enabled) {
863 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] |=
864 ((R200_VTX_FP_RGBA << R200_VTX_COLOR_0_SHIFT));
865 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL] |= R200_OUTPUT_COLOR_0;
866 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_LIGHTING_ENABLE;
867 } else if (ctx->Fog.ColorSumEnabled ) {
868 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] |=
869 ((R200_VTX_FP_RGBA << R200_VTX_COLOR_0_SHIFT) |
870 (R200_VTX_FP_RGBA << R200_VTX_COLOR_1_SHIFT));
871 p |= R200_SPECULAR_ENABLE;
872 } else {
873 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] |=
874 ((R200_VTX_FP_RGBA << R200_VTX_COLOR_0_SHIFT));
875 }
876
877 if (ctx->Fog.Enabled) {
878 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_0] |=
879 ((R200_VTX_FP_RGBA << R200_VTX_COLOR_1_SHIFT));
880 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL] |= R200_OUTPUT_COLOR_1;
881 }
882
883 if ( rmesa->hw.ctx.cmd[CTX_PP_CNTL] != p ) {
884 R200_STATECHANGE( rmesa, ctx );
885 rmesa->hw.ctx.cmd[CTX_PP_CNTL] = p;
886 }
887
888 /* Update vertex/render formats
889 */
890 if (rmesa->TclFallback) {
891 r200ChooseRenderState( ctx );
892 r200ChooseVertexState( ctx );
893 }
894 }
895
896
897 /* =============================================================
898 * Materials
899 */
900
901
902 /* Update on colormaterial, material emmissive/ambient,
903 * lightmodel.globalambient
904 */
905 static void update_global_ambient( GLcontext *ctx )
906 {
907 r200ContextPtr rmesa = R200_CONTEXT(ctx);
908 float *fcmd = (float *)R200_DB_STATE( glt );
909
910 /* Need to do more if both emmissive & ambient are PREMULT:
911 * I believe this is not nessary when using source_material. This condition thus
912 * will never happen currently, and the function has no dependencies on materials now
913 */
914 if ((rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_1] &
915 ((3 << R200_FRONT_EMISSIVE_SOURCE_SHIFT) |
916 (3 << R200_FRONT_AMBIENT_SOURCE_SHIFT))) == 0)
917 {
918 COPY_3V( &fcmd[GLT_RED],
919 ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION]);
920 ACC_SCALE_3V( &fcmd[GLT_RED],
921 ctx->Light.Model.Ambient,
922 ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT]);
923 }
924 else
925 {
926 COPY_3V( &fcmd[GLT_RED], ctx->Light.Model.Ambient );
927 }
928
929 R200_DB_STATECHANGE(rmesa, &rmesa->hw.glt);
930 }
931
932 /* Update on change to
933 * - light[p].colors
934 * - light[p].enabled
935 */
936 static void update_light_colors( GLcontext *ctx, GLuint p )
937 {
938 struct gl_light *l = &ctx->Light.Light[p];
939
940 /* fprintf(stderr, "%s\n", __FUNCTION__); */
941
942 if (l->Enabled) {
943 r200ContextPtr rmesa = R200_CONTEXT(ctx);
944 float *fcmd = (float *)R200_DB_STATE( lit[p] );
945
946 COPY_4V( &fcmd[LIT_AMBIENT_RED], l->Ambient );
947 COPY_4V( &fcmd[LIT_DIFFUSE_RED], l->Diffuse );
948 COPY_4V( &fcmd[LIT_SPECULAR_RED], l->Specular );
949
950 R200_DB_STATECHANGE( rmesa, &rmesa->hw.lit[p] );
951 }
952 }
953
954 static void r200ColorMaterial( GLcontext *ctx, GLenum face, GLenum mode )
955 {
956 r200ContextPtr rmesa = R200_CONTEXT(ctx);
957 GLuint light_model_ctl1 = rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_1];
958 light_model_ctl1 &= ~((0xf << R200_FRONT_EMISSIVE_SOURCE_SHIFT) |
959 (0xf << R200_FRONT_AMBIENT_SOURCE_SHIFT) |
960 (0xf << R200_FRONT_DIFFUSE_SOURCE_SHIFT) |
961 (0xf << R200_FRONT_SPECULAR_SOURCE_SHIFT) |
962 (0xf << R200_BACK_EMISSIVE_SOURCE_SHIFT) |
963 (0xf << R200_BACK_AMBIENT_SOURCE_SHIFT) |
964 (0xf << R200_BACK_DIFFUSE_SOURCE_SHIFT) |
965 (0xf << R200_BACK_SPECULAR_SOURCE_SHIFT));
966
967 if (ctx->Light.ColorMaterialEnabled) {
968 GLuint mask = ctx->Light.ColorMaterialBitmask;
969
970 if (mask & MAT_BIT_FRONT_EMISSION) {
971 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
972 R200_FRONT_EMISSIVE_SOURCE_SHIFT);
973 }
974 else
975 light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_0 <<
976 R200_FRONT_EMISSIVE_SOURCE_SHIFT);
977
978 if (mask & MAT_BIT_FRONT_AMBIENT) {
979 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
980 R200_FRONT_AMBIENT_SOURCE_SHIFT);
981 }
982 else
983 light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_0 <<
984 R200_FRONT_AMBIENT_SOURCE_SHIFT);
985
986 if (mask & MAT_BIT_FRONT_DIFFUSE) {
987 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
988 R200_FRONT_DIFFUSE_SOURCE_SHIFT);
989 }
990 else
991 light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_0 <<
992 R200_FRONT_DIFFUSE_SOURCE_SHIFT);
993
994 if (mask & MAT_BIT_FRONT_SPECULAR) {
995 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
996 R200_FRONT_SPECULAR_SOURCE_SHIFT);
997 }
998 else {
999 light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_0 <<
1000 R200_FRONT_SPECULAR_SOURCE_SHIFT);
1001 }
1002
1003 if (mask & MAT_BIT_BACK_EMISSION) {
1004 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
1005 R200_BACK_EMISSIVE_SOURCE_SHIFT);
1006 }
1007
1008 else light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_1 <<
1009 R200_BACK_EMISSIVE_SOURCE_SHIFT);
1010
1011 if (mask & MAT_BIT_BACK_AMBIENT) {
1012 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
1013 R200_BACK_AMBIENT_SOURCE_SHIFT);
1014 }
1015 else light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_1 <<
1016 R200_BACK_AMBIENT_SOURCE_SHIFT);
1017
1018 if (mask & MAT_BIT_BACK_DIFFUSE) {
1019 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
1020 R200_BACK_DIFFUSE_SOURCE_SHIFT);
1021 }
1022 else light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_1 <<
1023 R200_BACK_DIFFUSE_SOURCE_SHIFT);
1024
1025 if (mask & MAT_BIT_BACK_SPECULAR) {
1026 light_model_ctl1 |= (R200_LM1_SOURCE_VERTEX_COLOR_0 <<
1027 R200_BACK_SPECULAR_SOURCE_SHIFT);
1028 }
1029 else {
1030 light_model_ctl1 |= (R200_LM1_SOURCE_MATERIAL_1 <<
1031 R200_BACK_SPECULAR_SOURCE_SHIFT);
1032 }
1033 }
1034 else {
1035 /* Default to SOURCE_MATERIAL:
1036 */
1037 light_model_ctl1 |=
1038 (R200_LM1_SOURCE_MATERIAL_0 << R200_FRONT_EMISSIVE_SOURCE_SHIFT) |
1039 (R200_LM1_SOURCE_MATERIAL_0 << R200_FRONT_AMBIENT_SOURCE_SHIFT) |
1040 (R200_LM1_SOURCE_MATERIAL_0 << R200_FRONT_DIFFUSE_SOURCE_SHIFT) |
1041 (R200_LM1_SOURCE_MATERIAL_0 << R200_FRONT_SPECULAR_SOURCE_SHIFT) |
1042 (R200_LM1_SOURCE_MATERIAL_1 << R200_BACK_EMISSIVE_SOURCE_SHIFT) |
1043 (R200_LM1_SOURCE_MATERIAL_1 << R200_BACK_AMBIENT_SOURCE_SHIFT) |
1044 (R200_LM1_SOURCE_MATERIAL_1 << R200_BACK_DIFFUSE_SOURCE_SHIFT) |
1045 (R200_LM1_SOURCE_MATERIAL_1 << R200_BACK_SPECULAR_SOURCE_SHIFT);
1046 }
1047
1048 if (light_model_ctl1 != rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_1]) {
1049 R200_STATECHANGE( rmesa, tcl );
1050 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_1] = light_model_ctl1;
1051 }
1052
1053
1054 }
1055
1056 void r200UpdateMaterial( GLcontext *ctx )
1057 {
1058 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1059 GLfloat (*mat)[4] = ctx->Light.Material.Attrib;
1060 GLfloat *fcmd = (GLfloat *)R200_DB_STATE( mtl[0] );
1061 GLfloat *fcmd2 = (GLfloat *)R200_DB_STATE( mtl[1] );
1062 GLuint mask = ~0;
1063
1064 /* Might be possible and faster to update everything unconditionally? */
1065 if (ctx->Light.ColorMaterialEnabled)
1066 mask &= ~ctx->Light.ColorMaterialBitmask;
1067
1068 if (R200_DEBUG & DEBUG_STATE)
1069 fprintf(stderr, "%s\n", __FUNCTION__);
1070
1071 if (mask & MAT_BIT_FRONT_EMISSION) {
1072 fcmd[MTL_EMMISSIVE_RED] = mat[MAT_ATTRIB_FRONT_EMISSION][0];
1073 fcmd[MTL_EMMISSIVE_GREEN] = mat[MAT_ATTRIB_FRONT_EMISSION][1];
1074 fcmd[MTL_EMMISSIVE_BLUE] = mat[MAT_ATTRIB_FRONT_EMISSION][2];
1075 fcmd[MTL_EMMISSIVE_ALPHA] = mat[MAT_ATTRIB_FRONT_EMISSION][3];
1076 }
1077 if (mask & MAT_BIT_FRONT_AMBIENT) {
1078 fcmd[MTL_AMBIENT_RED] = mat[MAT_ATTRIB_FRONT_AMBIENT][0];
1079 fcmd[MTL_AMBIENT_GREEN] = mat[MAT_ATTRIB_FRONT_AMBIENT][1];
1080 fcmd[MTL_AMBIENT_BLUE] = mat[MAT_ATTRIB_FRONT_AMBIENT][2];
1081 fcmd[MTL_AMBIENT_ALPHA] = mat[MAT_ATTRIB_FRONT_AMBIENT][3];
1082 }
1083 if (mask & MAT_BIT_FRONT_DIFFUSE) {
1084 fcmd[MTL_DIFFUSE_RED] = mat[MAT_ATTRIB_FRONT_DIFFUSE][0];
1085 fcmd[MTL_DIFFUSE_GREEN] = mat[MAT_ATTRIB_FRONT_DIFFUSE][1];
1086 fcmd[MTL_DIFFUSE_BLUE] = mat[MAT_ATTRIB_FRONT_DIFFUSE][2];
1087 fcmd[MTL_DIFFUSE_ALPHA] = mat[MAT_ATTRIB_FRONT_DIFFUSE][3];
1088 }
1089 if (mask & MAT_BIT_FRONT_SPECULAR) {
1090 fcmd[MTL_SPECULAR_RED] = mat[MAT_ATTRIB_FRONT_SPECULAR][0];
1091 fcmd[MTL_SPECULAR_GREEN] = mat[MAT_ATTRIB_FRONT_SPECULAR][1];
1092 fcmd[MTL_SPECULAR_BLUE] = mat[MAT_ATTRIB_FRONT_SPECULAR][2];
1093 fcmd[MTL_SPECULAR_ALPHA] = mat[MAT_ATTRIB_FRONT_SPECULAR][3];
1094 }
1095 if (mask & MAT_BIT_FRONT_SHININESS) {
1096 fcmd[MTL_SHININESS] = mat[MAT_ATTRIB_FRONT_SHININESS][0];
1097 }
1098
1099 if (mask & MAT_BIT_BACK_EMISSION) {
1100 fcmd2[MTL_EMMISSIVE_RED] = mat[MAT_ATTRIB_BACK_EMISSION][0];
1101 fcmd2[MTL_EMMISSIVE_GREEN] = mat[MAT_ATTRIB_BACK_EMISSION][1];
1102 fcmd2[MTL_EMMISSIVE_BLUE] = mat[MAT_ATTRIB_BACK_EMISSION][2];
1103 fcmd2[MTL_EMMISSIVE_ALPHA] = mat[MAT_ATTRIB_BACK_EMISSION][3];
1104 }
1105 if (mask & MAT_BIT_BACK_AMBIENT) {
1106 fcmd2[MTL_AMBIENT_RED] = mat[MAT_ATTRIB_BACK_AMBIENT][0];
1107 fcmd2[MTL_AMBIENT_GREEN] = mat[MAT_ATTRIB_BACK_AMBIENT][1];
1108 fcmd2[MTL_AMBIENT_BLUE] = mat[MAT_ATTRIB_BACK_AMBIENT][2];
1109 fcmd2[MTL_AMBIENT_ALPHA] = mat[MAT_ATTRIB_BACK_AMBIENT][3];
1110 }
1111 if (mask & MAT_BIT_BACK_DIFFUSE) {
1112 fcmd2[MTL_DIFFUSE_RED] = mat[MAT_ATTRIB_BACK_DIFFUSE][0];
1113 fcmd2[MTL_DIFFUSE_GREEN] = mat[MAT_ATTRIB_BACK_DIFFUSE][1];
1114 fcmd2[MTL_DIFFUSE_BLUE] = mat[MAT_ATTRIB_BACK_DIFFUSE][2];
1115 fcmd2[MTL_DIFFUSE_ALPHA] = mat[MAT_ATTRIB_BACK_DIFFUSE][3];
1116 }
1117 if (mask & MAT_BIT_BACK_SPECULAR) {
1118 fcmd2[MTL_SPECULAR_RED] = mat[MAT_ATTRIB_BACK_SPECULAR][0];
1119 fcmd2[MTL_SPECULAR_GREEN] = mat[MAT_ATTRIB_BACK_SPECULAR][1];
1120 fcmd2[MTL_SPECULAR_BLUE] = mat[MAT_ATTRIB_BACK_SPECULAR][2];
1121 fcmd2[MTL_SPECULAR_ALPHA] = mat[MAT_ATTRIB_BACK_SPECULAR][3];
1122 }
1123 if (mask & MAT_BIT_BACK_SHININESS) {
1124 fcmd2[MTL_SHININESS] = mat[MAT_ATTRIB_BACK_SHININESS][0];
1125 }
1126
1127 R200_DB_STATECHANGE( rmesa, &rmesa->hw.mtl[0] );
1128 R200_DB_STATECHANGE( rmesa, &rmesa->hw.mtl[1] );
1129
1130 /* currently material changes cannot trigger a global ambient change, I believe this is correct
1131 update_global_ambient( ctx ); */
1132 }
1133
1134 /* _NEW_LIGHT
1135 * _NEW_MODELVIEW
1136 * _MESA_NEW_NEED_EYE_COORDS
1137 *
1138 * Uses derived state from mesa:
1139 * _VP_inf_norm
1140 * _h_inf_norm
1141 * _Position
1142 * _NormDirection
1143 * _ModelViewInvScale
1144 * _NeedEyeCoords
1145 * _EyeZDir
1146 *
1147 * which are calculated in light.c and are correct for the current
1148 * lighting space (model or eye), hence dependencies on _NEW_MODELVIEW
1149 * and _MESA_NEW_NEED_EYE_COORDS.
1150 */
1151 static void update_light( GLcontext *ctx )
1152 {
1153 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1154
1155 /* Have to check these, or have an automatic shortcircuit mechanism
1156 * to remove noop statechanges. (Or just do a better job on the
1157 * front end).
1158 */
1159 {
1160 GLuint tmp = rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0];
1161
1162 if (ctx->_NeedEyeCoords)
1163 tmp &= ~R200_LIGHT_IN_MODELSPACE;
1164 else
1165 tmp |= R200_LIGHT_IN_MODELSPACE;
1166
1167 if (tmp != rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0])
1168 {
1169 R200_STATECHANGE( rmesa, tcl );
1170 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] = tmp;
1171 }
1172 }
1173
1174 {
1175 GLfloat *fcmd = (GLfloat *)R200_DB_STATE( eye );
1176 fcmd[EYE_X] = ctx->_EyeZDir[0];
1177 fcmd[EYE_Y] = ctx->_EyeZDir[1];
1178 fcmd[EYE_Z] = - ctx->_EyeZDir[2];
1179 fcmd[EYE_RESCALE_FACTOR] = ctx->_ModelViewInvScale;
1180 R200_DB_STATECHANGE( rmesa, &rmesa->hw.eye );
1181 }
1182
1183
1184
1185 if (ctx->Light.Enabled) {
1186 GLint p;
1187 for (p = 0 ; p < MAX_LIGHTS; p++) {
1188 if (ctx->Light.Light[p].Enabled) {
1189 struct gl_light *l = &ctx->Light.Light[p];
1190 GLfloat *fcmd = (GLfloat *)R200_DB_STATE( lit[p] );
1191
1192 if (l->EyePosition[3] == 0.0) {
1193 COPY_3FV( &fcmd[LIT_POSITION_X], l->_VP_inf_norm );
1194 COPY_3FV( &fcmd[LIT_DIRECTION_X], l->_h_inf_norm );
1195 fcmd[LIT_POSITION_W] = 0;
1196 fcmd[LIT_DIRECTION_W] = 0;
1197 } else {
1198 COPY_4V( &fcmd[LIT_POSITION_X], l->_Position );
1199 fcmd[LIT_DIRECTION_X] = -l->_NormDirection[0];
1200 fcmd[LIT_DIRECTION_Y] = -l->_NormDirection[1];
1201 fcmd[LIT_DIRECTION_Z] = -l->_NormDirection[2];
1202 fcmd[LIT_DIRECTION_W] = 0;
1203 }
1204
1205 R200_DB_STATECHANGE( rmesa, &rmesa->hw.lit[p] );
1206 }
1207 }
1208 }
1209 }
1210
1211 static void r200Lightfv( GLcontext *ctx, GLenum light,
1212 GLenum pname, const GLfloat *params )
1213 {
1214 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1215 GLint p = light - GL_LIGHT0;
1216 struct gl_light *l = &ctx->Light.Light[p];
1217 GLfloat *fcmd = (GLfloat *)rmesa->hw.lit[p].cmd;
1218
1219
1220 switch (pname) {
1221 case GL_AMBIENT:
1222 case GL_DIFFUSE:
1223 case GL_SPECULAR:
1224 update_light_colors( ctx, p );
1225 break;
1226
1227 case GL_SPOT_DIRECTION:
1228 /* picked up in update_light */
1229 break;
1230
1231 case GL_POSITION: {
1232 /* positions picked up in update_light, but can do flag here */
1233 GLuint flag = (p&1)? R200_LIGHT_1_IS_LOCAL : R200_LIGHT_0_IS_LOCAL;
1234 GLuint idx = TCL_PER_LIGHT_CTL_0 + p/2;
1235
1236 R200_STATECHANGE(rmesa, tcl);
1237 if (l->EyePosition[3] != 0.0F)
1238 rmesa->hw.tcl.cmd[idx] |= flag;
1239 else
1240 rmesa->hw.tcl.cmd[idx] &= ~flag;
1241 break;
1242 }
1243
1244 case GL_SPOT_EXPONENT:
1245 R200_STATECHANGE(rmesa, lit[p]);
1246 fcmd[LIT_SPOT_EXPONENT] = params[0];
1247 break;
1248
1249 case GL_SPOT_CUTOFF: {
1250 GLuint flag = (p&1) ? R200_LIGHT_1_IS_SPOT : R200_LIGHT_0_IS_SPOT;
1251 GLuint idx = TCL_PER_LIGHT_CTL_0 + p/2;
1252
1253 R200_STATECHANGE(rmesa, lit[p]);
1254 fcmd[LIT_SPOT_CUTOFF] = l->_CosCutoff;
1255
1256 R200_STATECHANGE(rmesa, tcl);
1257 if (l->SpotCutoff != 180.0F)
1258 rmesa->hw.tcl.cmd[idx] |= flag;
1259 else
1260 rmesa->hw.tcl.cmd[idx] &= ~flag;
1261
1262 break;
1263 }
1264
1265 case GL_CONSTANT_ATTENUATION:
1266 R200_STATECHANGE(rmesa, lit[p]);
1267 fcmd[LIT_ATTEN_CONST] = params[0];
1268 if ( params[0] == 0.0 )
1269 fcmd[LIT_ATTEN_CONST_INV] = FLT_MAX;
1270 else
1271 fcmd[LIT_ATTEN_CONST_INV] = 1.0 / params[0];
1272 break;
1273 case GL_LINEAR_ATTENUATION:
1274 R200_STATECHANGE(rmesa, lit[p]);
1275 fcmd[LIT_ATTEN_LINEAR] = params[0];
1276 break;
1277 case GL_QUADRATIC_ATTENUATION:
1278 R200_STATECHANGE(rmesa, lit[p]);
1279 fcmd[LIT_ATTEN_QUADRATIC] = params[0];
1280 break;
1281 default:
1282 return;
1283 }
1284
1285 /* Set RANGE_ATTEN only when needed */
1286 switch (pname) {
1287 case GL_POSITION:
1288 case GL_CONSTANT_ATTENUATION:
1289 case GL_LINEAR_ATTENUATION:
1290 case GL_QUADRATIC_ATTENUATION: {
1291 GLuint *icmd = (GLuint *)R200_DB_STATE( tcl );
1292 GLuint idx = TCL_PER_LIGHT_CTL_0 + p/2;
1293 GLuint atten_flag = ( p&1 ) ? R200_LIGHT_1_ENABLE_RANGE_ATTEN
1294 : R200_LIGHT_0_ENABLE_RANGE_ATTEN;
1295 GLuint atten_const_flag = ( p&1 ) ? R200_LIGHT_1_CONSTANT_RANGE_ATTEN
1296 : R200_LIGHT_0_CONSTANT_RANGE_ATTEN;
1297
1298 if ( l->EyePosition[3] == 0.0F ||
1299 ( ( fcmd[LIT_ATTEN_CONST] == 0.0 || fcmd[LIT_ATTEN_CONST] == 1.0 ) &&
1300 fcmd[LIT_ATTEN_QUADRATIC] == 0.0 && fcmd[LIT_ATTEN_LINEAR] == 0.0 ) ) {
1301 /* Disable attenuation */
1302 icmd[idx] &= ~atten_flag;
1303 } else {
1304 if ( fcmd[LIT_ATTEN_QUADRATIC] == 0.0 && fcmd[LIT_ATTEN_LINEAR] == 0.0 ) {
1305 /* Enable only constant portion of attenuation calculation */
1306 icmd[idx] |= ( atten_flag | atten_const_flag );
1307 } else {
1308 /* Enable full attenuation calculation */
1309 icmd[idx] &= ~atten_const_flag;
1310 icmd[idx] |= atten_flag;
1311 }
1312 }
1313
1314 R200_DB_STATECHANGE( rmesa, &rmesa->hw.tcl );
1315 break;
1316 }
1317 default:
1318 break;
1319 }
1320 }
1321
1322 static void r200UpdateLocalViewer ( GLcontext *ctx )
1323 {
1324 /* It looks like for the texgen modes GL_SPHERE_MAP, GL_NORMAL_MAP and
1325 GL_REFLECTION_MAP we need R200_LOCAL_VIEWER set (fglrx does exactly that
1326 for these and only these modes). This means specular highlights may turn out
1327 wrong in some cases when lighting is enabled but GL_LIGHT_MODEL_LOCAL_VIEWER
1328 is not set, though it seems to happen rarely and the effect seems quite
1329 subtle. May need TCL fallback to fix it completely, though I'm not sure
1330 how you'd identify the cases where the specular highlights indeed will
1331 be wrong. Don't know if fglrx does something special in that case.
1332 */
1333 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1334 R200_STATECHANGE( rmesa, tcl );
1335 if (ctx->Light.Model.LocalViewer ||
1336 ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS)
1337 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_LOCAL_VIEWER;
1338 else
1339 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] &= ~R200_LOCAL_VIEWER;
1340 }
1341
1342 static void r200LightModelfv( GLcontext *ctx, GLenum pname,
1343 const GLfloat *param )
1344 {
1345 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1346
1347 switch (pname) {
1348 case GL_LIGHT_MODEL_AMBIENT:
1349 update_global_ambient( ctx );
1350 break;
1351
1352 case GL_LIGHT_MODEL_LOCAL_VIEWER:
1353 r200UpdateLocalViewer( ctx );
1354 break;
1355
1356 case GL_LIGHT_MODEL_TWO_SIDE:
1357 R200_STATECHANGE( rmesa, tcl );
1358 if (ctx->Light.Model.TwoSide)
1359 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_LIGHT_TWOSIDE;
1360 else
1361 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] &= ~(R200_LIGHT_TWOSIDE);
1362 if (rmesa->TclFallback) {
1363 r200ChooseRenderState( ctx );
1364 r200ChooseVertexState( ctx );
1365 }
1366 break;
1367
1368 case GL_LIGHT_MODEL_COLOR_CONTROL:
1369 r200UpdateSpecular(ctx);
1370 break;
1371
1372 default:
1373 break;
1374 }
1375 }
1376
1377 static void r200ShadeModel( GLcontext *ctx, GLenum mode )
1378 {
1379 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1380 GLuint s = rmesa->hw.set.cmd[SET_SE_CNTL];
1381
1382 s &= ~(R200_DIFFUSE_SHADE_MASK |
1383 R200_ALPHA_SHADE_MASK |
1384 R200_SPECULAR_SHADE_MASK |
1385 R200_FOG_SHADE_MASK);
1386
1387 switch ( mode ) {
1388 case GL_FLAT:
1389 s |= (R200_DIFFUSE_SHADE_FLAT |
1390 R200_ALPHA_SHADE_FLAT |
1391 R200_SPECULAR_SHADE_FLAT |
1392 R200_FOG_SHADE_FLAT);
1393 break;
1394 case GL_SMOOTH:
1395 s |= (R200_DIFFUSE_SHADE_GOURAUD |
1396 R200_ALPHA_SHADE_GOURAUD |
1397 R200_SPECULAR_SHADE_GOURAUD |
1398 R200_FOG_SHADE_GOURAUD);
1399 break;
1400 default:
1401 return;
1402 }
1403
1404 if ( rmesa->hw.set.cmd[SET_SE_CNTL] != s ) {
1405 R200_STATECHANGE( rmesa, set );
1406 rmesa->hw.set.cmd[SET_SE_CNTL] = s;
1407 }
1408 }
1409
1410
1411 /* =============================================================
1412 * User clip planes
1413 */
1414
1415 static void r200ClipPlane( GLcontext *ctx, GLenum plane, const GLfloat *eq )
1416 {
1417 GLint p = (GLint) plane - (GLint) GL_CLIP_PLANE0;
1418 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1419 GLint *ip = (GLint *)ctx->Transform._ClipUserPlane[p];
1420
1421 R200_STATECHANGE( rmesa, ucp[p] );
1422 rmesa->hw.ucp[p].cmd[UCP_X] = ip[0];
1423 rmesa->hw.ucp[p].cmd[UCP_Y] = ip[1];
1424 rmesa->hw.ucp[p].cmd[UCP_Z] = ip[2];
1425 rmesa->hw.ucp[p].cmd[UCP_W] = ip[3];
1426 }
1427
1428 static void r200UpdateClipPlanes( GLcontext *ctx )
1429 {
1430 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1431 GLuint p;
1432
1433 for (p = 0; p < ctx->Const.MaxClipPlanes; p++) {
1434 if (ctx->Transform.ClipPlanesEnabled & (1 << p)) {
1435 GLint *ip = (GLint *)ctx->Transform._ClipUserPlane[p];
1436
1437 R200_STATECHANGE( rmesa, ucp[p] );
1438 rmesa->hw.ucp[p].cmd[UCP_X] = ip[0];
1439 rmesa->hw.ucp[p].cmd[UCP_Y] = ip[1];
1440 rmesa->hw.ucp[p].cmd[UCP_Z] = ip[2];
1441 rmesa->hw.ucp[p].cmd[UCP_W] = ip[3];
1442 }
1443 }
1444 }
1445
1446
1447 /* =============================================================
1448 * Stencil
1449 */
1450
1451 static void
1452 r200StencilFuncSeparate( GLcontext *ctx, GLenum face, GLenum func,
1453 GLint ref, GLuint mask )
1454 {
1455 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1456 GLuint refmask = (((ctx->Stencil.Ref[0] & 0xff) << R200_STENCIL_REF_SHIFT) |
1457 ((ctx->Stencil.ValueMask[0] & 0xff) << R200_STENCIL_MASK_SHIFT));
1458
1459 R200_STATECHANGE( rmesa, ctx );
1460 R200_STATECHANGE( rmesa, msk );
1461
1462 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] &= ~R200_STENCIL_TEST_MASK;
1463 rmesa->hw.msk.cmd[MSK_RB3D_STENCILREFMASK] &= ~(R200_STENCIL_REF_MASK|
1464 R200_STENCIL_VALUE_MASK);
1465
1466 switch ( ctx->Stencil.Function[0] ) {
1467 case GL_NEVER:
1468 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_NEVER;
1469 break;
1470 case GL_LESS:
1471 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_LESS;
1472 break;
1473 case GL_EQUAL:
1474 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_EQUAL;
1475 break;
1476 case GL_LEQUAL:
1477 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_LEQUAL;
1478 break;
1479 case GL_GREATER:
1480 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_GREATER;
1481 break;
1482 case GL_NOTEQUAL:
1483 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_NEQUAL;
1484 break;
1485 case GL_GEQUAL:
1486 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_GEQUAL;
1487 break;
1488 case GL_ALWAYS:
1489 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_TEST_ALWAYS;
1490 break;
1491 }
1492
1493 rmesa->hw.msk.cmd[MSK_RB3D_STENCILREFMASK] |= refmask;
1494 }
1495
1496 static void
1497 r200StencilMaskSeparate( GLcontext *ctx, GLenum face, GLuint mask )
1498 {
1499 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1500
1501 R200_STATECHANGE( rmesa, msk );
1502 rmesa->hw.msk.cmd[MSK_RB3D_STENCILREFMASK] &= ~R200_STENCIL_WRITE_MASK;
1503 rmesa->hw.msk.cmd[MSK_RB3D_STENCILREFMASK] |=
1504 ((ctx->Stencil.WriteMask[0] & 0xff) << R200_STENCIL_WRITEMASK_SHIFT);
1505 }
1506
1507 static void
1508 r200StencilOpSeparate( GLcontext *ctx, GLenum face, GLenum fail,
1509 GLenum zfail, GLenum zpass )
1510 {
1511 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1512
1513 R200_STATECHANGE( rmesa, ctx );
1514 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] &= ~(R200_STENCIL_FAIL_MASK |
1515 R200_STENCIL_ZFAIL_MASK |
1516 R200_STENCIL_ZPASS_MASK);
1517
1518 switch ( ctx->Stencil.FailFunc[0] ) {
1519 case GL_KEEP:
1520 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_KEEP;
1521 break;
1522 case GL_ZERO:
1523 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_ZERO;
1524 break;
1525 case GL_REPLACE:
1526 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_REPLACE;
1527 break;
1528 case GL_INCR:
1529 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_INC;
1530 break;
1531 case GL_DECR:
1532 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_DEC;
1533 break;
1534 case GL_INCR_WRAP_EXT:
1535 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_INC_WRAP;
1536 break;
1537 case GL_DECR_WRAP_EXT:
1538 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_DEC_WRAP;
1539 break;
1540 case GL_INVERT:
1541 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_FAIL_INVERT;
1542 break;
1543 }
1544
1545 switch ( ctx->Stencil.ZFailFunc[0] ) {
1546 case GL_KEEP:
1547 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_KEEP;
1548 break;
1549 case GL_ZERO:
1550 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_ZERO;
1551 break;
1552 case GL_REPLACE:
1553 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_REPLACE;
1554 break;
1555 case GL_INCR:
1556 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_INC;
1557 break;
1558 case GL_DECR:
1559 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_DEC;
1560 break;
1561 case GL_INCR_WRAP_EXT:
1562 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_INC_WRAP;
1563 break;
1564 case GL_DECR_WRAP_EXT:
1565 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_DEC_WRAP;
1566 break;
1567 case GL_INVERT:
1568 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZFAIL_INVERT;
1569 break;
1570 }
1571
1572 switch ( ctx->Stencil.ZPassFunc[0] ) {
1573 case GL_KEEP:
1574 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_KEEP;
1575 break;
1576 case GL_ZERO:
1577 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_ZERO;
1578 break;
1579 case GL_REPLACE:
1580 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_REPLACE;
1581 break;
1582 case GL_INCR:
1583 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_INC;
1584 break;
1585 case GL_DECR:
1586 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_DEC;
1587 break;
1588 case GL_INCR_WRAP_EXT:
1589 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_INC_WRAP;
1590 break;
1591 case GL_DECR_WRAP_EXT:
1592 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_DEC_WRAP;
1593 break;
1594 case GL_INVERT:
1595 rmesa->hw.ctx.cmd[CTX_RB3D_ZSTENCILCNTL] |= R200_STENCIL_ZPASS_INVERT;
1596 break;
1597 }
1598 }
1599
1600 static void r200ClearStencil( GLcontext *ctx, GLint s )
1601 {
1602 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1603
1604 rmesa->state.stencil.clear =
1605 ((GLuint) (ctx->Stencil.Clear & 0xff) |
1606 (0xff << R200_STENCIL_MASK_SHIFT) |
1607 ((ctx->Stencil.WriteMask[0] & 0xff) << R200_STENCIL_WRITEMASK_SHIFT));
1608 }
1609
1610
1611 /* =============================================================
1612 * Window position and viewport transformation
1613 */
1614
1615 /*
1616 * To correctly position primitives:
1617 */
1618 #define SUBPIXEL_X 0.125
1619 #define SUBPIXEL_Y 0.125
1620
1621 void r200UpdateWindow( GLcontext *ctx )
1622 {
1623 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1624 __DRIdrawablePrivate *dPriv = rmesa->dri.drawable;
1625 GLfloat xoffset = (GLfloat)dPriv->x;
1626 GLfloat yoffset = (GLfloat)dPriv->y + dPriv->h;
1627 const GLfloat *v = ctx->Viewport._WindowMap.m;
1628
1629 float_ui32_type sx = { v[MAT_SX] };
1630 float_ui32_type tx = { v[MAT_TX] + xoffset + SUBPIXEL_X };
1631 float_ui32_type sy = { - v[MAT_SY] };
1632 float_ui32_type ty = { (- v[MAT_TY]) + yoffset + SUBPIXEL_Y };
1633 float_ui32_type sz = { v[MAT_SZ] * rmesa->state.depth.scale };
1634 float_ui32_type tz = { v[MAT_TZ] * rmesa->state.depth.scale };
1635
1636 R200_FIREVERTICES( rmesa );
1637 R200_STATECHANGE( rmesa, vpt );
1638
1639 rmesa->hw.vpt.cmd[VPT_SE_VPORT_XSCALE] = sx.ui32;
1640 rmesa->hw.vpt.cmd[VPT_SE_VPORT_XOFFSET] = tx.ui32;
1641 rmesa->hw.vpt.cmd[VPT_SE_VPORT_YSCALE] = sy.ui32;
1642 rmesa->hw.vpt.cmd[VPT_SE_VPORT_YOFFSET] = ty.ui32;
1643 rmesa->hw.vpt.cmd[VPT_SE_VPORT_ZSCALE] = sz.ui32;
1644 rmesa->hw.vpt.cmd[VPT_SE_VPORT_ZOFFSET] = tz.ui32;
1645 }
1646
1647
1648
1649 static void r200Viewport( GLcontext *ctx, GLint x, GLint y,
1650 GLsizei width, GLsizei height )
1651 {
1652 /* Don't pipeline viewport changes, conflict with window offset
1653 * setting below. Could apply deltas to rescue pipelined viewport
1654 * values, or keep the originals hanging around.
1655 */
1656 r200UpdateWindow( ctx );
1657 }
1658
1659 static void r200DepthRange( GLcontext *ctx, GLclampd nearval,
1660 GLclampd farval )
1661 {
1662 r200UpdateWindow( ctx );
1663 }
1664
1665 void r200UpdateViewportOffset( GLcontext *ctx )
1666 {
1667 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1668 __DRIdrawablePrivate *dPriv = rmesa->dri.drawable;
1669 GLfloat xoffset = (GLfloat)dPriv->x;
1670 GLfloat yoffset = (GLfloat)dPriv->y + dPriv->h;
1671 const GLfloat *v = ctx->Viewport._WindowMap.m;
1672
1673 float_ui32_type tx;
1674 float_ui32_type ty;
1675
1676 tx.f = v[MAT_TX] + xoffset + SUBPIXEL_X;
1677 ty.f = (- v[MAT_TY]) + yoffset + SUBPIXEL_Y;
1678
1679 if ( rmesa->hw.vpt.cmd[VPT_SE_VPORT_XOFFSET] != tx.ui32 ||
1680 rmesa->hw.vpt.cmd[VPT_SE_VPORT_YOFFSET] != ty.ui32 )
1681 {
1682 /* Note: this should also modify whatever data the context reset
1683 * code uses...
1684 */
1685 R200_STATECHANGE( rmesa, vpt );
1686 rmesa->hw.vpt.cmd[VPT_SE_VPORT_XOFFSET] = tx.ui32;
1687 rmesa->hw.vpt.cmd[VPT_SE_VPORT_YOFFSET] = ty.ui32;
1688
1689 /* update polygon stipple x/y screen offset */
1690 {
1691 GLuint stx, sty;
1692 GLuint m = rmesa->hw.msc.cmd[MSC_RE_MISC];
1693
1694 m &= ~(R200_STIPPLE_X_OFFSET_MASK |
1695 R200_STIPPLE_Y_OFFSET_MASK);
1696
1697 /* add magic offsets, then invert */
1698 stx = 31 - ((rmesa->dri.drawable->x - 1) & R200_STIPPLE_COORD_MASK);
1699 sty = 31 - ((rmesa->dri.drawable->y + rmesa->dri.drawable->h - 1)
1700 & R200_STIPPLE_COORD_MASK);
1701
1702 m |= ((stx << R200_STIPPLE_X_OFFSET_SHIFT) |
1703 (sty << R200_STIPPLE_Y_OFFSET_SHIFT));
1704
1705 if ( rmesa->hw.msc.cmd[MSC_RE_MISC] != m ) {
1706 R200_STATECHANGE( rmesa, msc );
1707 rmesa->hw.msc.cmd[MSC_RE_MISC] = m;
1708 }
1709 }
1710 }
1711
1712 r200UpdateScissor( ctx );
1713 }
1714
1715
1716
1717 /* =============================================================
1718 * Miscellaneous
1719 */
1720
1721 static void r200ClearColor( GLcontext *ctx, const GLfloat c[4] )
1722 {
1723 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1724 GLubyte color[4];
1725 CLAMPED_FLOAT_TO_UBYTE(color[0], c[0]);
1726 CLAMPED_FLOAT_TO_UBYTE(color[1], c[1]);
1727 CLAMPED_FLOAT_TO_UBYTE(color[2], c[2]);
1728 CLAMPED_FLOAT_TO_UBYTE(color[3], c[3]);
1729 rmesa->state.color.clear = r200PackColor( rmesa->r200Screen->cpp,
1730 color[0], color[1],
1731 color[2], color[3] );
1732 }
1733
1734
1735 static void r200RenderMode( GLcontext *ctx, GLenum mode )
1736 {
1737 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1738 FALLBACK( rmesa, R200_FALLBACK_RENDER_MODE, (mode != GL_RENDER) );
1739 }
1740
1741
1742 static GLuint r200_rop_tab[] = {
1743 R200_ROP_CLEAR,
1744 R200_ROP_AND,
1745 R200_ROP_AND_REVERSE,
1746 R200_ROP_COPY,
1747 R200_ROP_AND_INVERTED,
1748 R200_ROP_NOOP,
1749 R200_ROP_XOR,
1750 R200_ROP_OR,
1751 R200_ROP_NOR,
1752 R200_ROP_EQUIV,
1753 R200_ROP_INVERT,
1754 R200_ROP_OR_REVERSE,
1755 R200_ROP_COPY_INVERTED,
1756 R200_ROP_OR_INVERTED,
1757 R200_ROP_NAND,
1758 R200_ROP_SET,
1759 };
1760
1761 static void r200LogicOpCode( GLcontext *ctx, GLenum opcode )
1762 {
1763 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1764 GLuint rop = (GLuint)opcode - GL_CLEAR;
1765
1766 ASSERT( rop < 16 );
1767
1768 R200_STATECHANGE( rmesa, msk );
1769 rmesa->hw.msk.cmd[MSK_RB3D_ROPCNTL] = r200_rop_tab[rop];
1770 }
1771
1772
1773 void r200SetCliprects( r200ContextPtr rmesa, GLenum mode )
1774 {
1775 __DRIdrawablePrivate *dPriv = rmesa->dri.drawable;
1776
1777 switch ( mode ) {
1778 case GL_FRONT_LEFT:
1779 rmesa->numClipRects = dPriv->numClipRects;
1780 rmesa->pClipRects = dPriv->pClipRects;
1781 break;
1782 case GL_BACK_LEFT:
1783 /* Can't ignore 2d windows if we are page flipping.
1784 */
1785 if ( dPriv->numBackClipRects == 0 || rmesa->doPageFlip ) {
1786 rmesa->numClipRects = dPriv->numClipRects;
1787 rmesa->pClipRects = dPriv->pClipRects;
1788 }
1789 else {
1790 rmesa->numClipRects = dPriv->numBackClipRects;
1791 rmesa->pClipRects = dPriv->pBackClipRects;
1792 }
1793 break;
1794 default:
1795 fprintf(stderr, "bad mode in r200SetCliprects\n");
1796 return;
1797 }
1798
1799 if (rmesa->state.scissor.enabled)
1800 r200RecalcScissorRects( rmesa );
1801 }
1802
1803
1804 static void r200DrawBuffer( GLcontext *ctx, GLenum mode )
1805 {
1806 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1807
1808 if (R200_DEBUG & DEBUG_DRI)
1809 fprintf(stderr, "%s %s\n", __FUNCTION__,
1810 _mesa_lookup_enum_by_nr( mode ));
1811
1812 R200_FIREVERTICES(rmesa); /* don't pipeline cliprect changes */
1813
1814 /*
1815 * _ColorDrawBufferMask is easier to cope with than <mode>.
1816 * Check for software fallback, update cliprects.
1817 */
1818 switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
1819 case BUFFER_BIT_FRONT_LEFT:
1820 FALLBACK( rmesa, R200_FALLBACK_DRAW_BUFFER, GL_FALSE );
1821 r200SetCliprects( rmesa, GL_FRONT_LEFT );
1822 break;
1823 case BUFFER_BIT_BACK_LEFT:
1824 FALLBACK( rmesa, R200_FALLBACK_DRAW_BUFFER, GL_FALSE );
1825 r200SetCliprects( rmesa, GL_BACK_LEFT );
1826 break;
1827 default:
1828 /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
1829 FALLBACK( rmesa, R200_FALLBACK_DRAW_BUFFER, GL_TRUE );
1830 return;
1831 }
1832
1833 /* We'll set the drawing engine's offset/pitch parameters later
1834 * when we update other state.
1835 */
1836 }
1837
1838
1839 static void r200ReadBuffer( GLcontext *ctx, GLenum mode )
1840 {
1841 /* nothing, until we implement h/w glRead/CopyPixels or CopyTexImage */
1842 }
1843
1844 /* =============================================================
1845 * State enable/disable
1846 */
1847
1848 static void r200Enable( GLcontext *ctx, GLenum cap, GLboolean state )
1849 {
1850 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1851 GLuint p, flag;
1852
1853 if ( R200_DEBUG & DEBUG_STATE )
1854 fprintf( stderr, "%s( %s = %s )\n", __FUNCTION__,
1855 _mesa_lookup_enum_by_nr( cap ),
1856 state ? "GL_TRUE" : "GL_FALSE" );
1857
1858 switch ( cap ) {
1859 /* Fast track this one...
1860 */
1861 case GL_TEXTURE_1D:
1862 case GL_TEXTURE_2D:
1863 case GL_TEXTURE_3D:
1864 break;
1865
1866 case GL_ALPHA_TEST:
1867 R200_STATECHANGE( rmesa, ctx );
1868 if (state) {
1869 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= R200_ALPHA_TEST_ENABLE;
1870 } else {
1871 rmesa->hw.ctx.cmd[CTX_PP_CNTL] &= ~R200_ALPHA_TEST_ENABLE;
1872 }
1873 break;
1874
1875 case GL_BLEND:
1876 case GL_COLOR_LOGIC_OP:
1877 r200_set_blend_state( ctx );
1878 break;
1879
1880 case GL_CLIP_PLANE0:
1881 case GL_CLIP_PLANE1:
1882 case GL_CLIP_PLANE2:
1883 case GL_CLIP_PLANE3:
1884 case GL_CLIP_PLANE4:
1885 case GL_CLIP_PLANE5:
1886 p = cap-GL_CLIP_PLANE0;
1887 R200_STATECHANGE( rmesa, tcl );
1888 if (state) {
1889 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= (R200_UCP_ENABLE_0<<p);
1890 r200ClipPlane( ctx, cap, NULL );
1891 }
1892 else {
1893 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~(R200_UCP_ENABLE_0<<p);
1894 }
1895 break;
1896
1897 case GL_COLOR_MATERIAL:
1898 r200ColorMaterial( ctx, 0, 0 );
1899 r200UpdateMaterial( ctx );
1900 break;
1901
1902 case GL_CULL_FACE:
1903 r200CullFace( ctx, 0 );
1904 break;
1905
1906 case GL_DEPTH_TEST:
1907 R200_STATECHANGE(rmesa, ctx );
1908 if ( state ) {
1909 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |= R200_Z_ENABLE;
1910 } else {
1911 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~R200_Z_ENABLE;
1912 }
1913 break;
1914
1915 case GL_DITHER:
1916 R200_STATECHANGE(rmesa, ctx );
1917 if ( state ) {
1918 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |= R200_DITHER_ENABLE;
1919 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~rmesa->state.color.roundEnable;
1920 } else {
1921 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~R200_DITHER_ENABLE;
1922 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |= rmesa->state.color.roundEnable;
1923 }
1924 break;
1925
1926 case GL_FOG:
1927 R200_STATECHANGE(rmesa, ctx );
1928 if ( state ) {
1929 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= R200_FOG_ENABLE;
1930 r200Fogfv( ctx, GL_FOG_MODE, NULL );
1931 } else {
1932 rmesa->hw.ctx.cmd[CTX_PP_CNTL] &= ~R200_FOG_ENABLE;
1933 R200_STATECHANGE(rmesa, tcl);
1934 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~R200_TCL_FOG_MASK;
1935 }
1936 r200UpdateSpecular( ctx ); /* for PK_SPEC */
1937 if (rmesa->TclFallback)
1938 r200ChooseVertexState( ctx );
1939 _mesa_allow_light_in_model( ctx, !state );
1940 break;
1941
1942 case GL_LIGHT0:
1943 case GL_LIGHT1:
1944 case GL_LIGHT2:
1945 case GL_LIGHT3:
1946 case GL_LIGHT4:
1947 case GL_LIGHT5:
1948 case GL_LIGHT6:
1949 case GL_LIGHT7:
1950 R200_STATECHANGE(rmesa, tcl);
1951 p = cap - GL_LIGHT0;
1952 if (p&1)
1953 flag = (R200_LIGHT_1_ENABLE |
1954 R200_LIGHT_1_ENABLE_AMBIENT |
1955 R200_LIGHT_1_ENABLE_SPECULAR);
1956 else
1957 flag = (R200_LIGHT_0_ENABLE |
1958 R200_LIGHT_0_ENABLE_AMBIENT |
1959 R200_LIGHT_0_ENABLE_SPECULAR);
1960
1961 if (state)
1962 rmesa->hw.tcl.cmd[p/2 + TCL_PER_LIGHT_CTL_0] |= flag;
1963 else
1964 rmesa->hw.tcl.cmd[p/2 + TCL_PER_LIGHT_CTL_0] &= ~flag;
1965
1966 /*
1967 */
1968 update_light_colors( ctx, p );
1969 break;
1970
1971 case GL_LIGHTING:
1972 r200UpdateSpecular(ctx);
1973 break;
1974
1975 case GL_LINE_SMOOTH:
1976 R200_STATECHANGE( rmesa, ctx );
1977 if ( state ) {
1978 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= R200_ANTI_ALIAS_LINE;
1979 } else {
1980 rmesa->hw.ctx.cmd[CTX_PP_CNTL] &= ~R200_ANTI_ALIAS_LINE;
1981 }
1982 break;
1983
1984 case GL_LINE_STIPPLE:
1985 R200_STATECHANGE( rmesa, set );
1986 if ( state ) {
1987 rmesa->hw.set.cmd[SET_RE_CNTL] |= R200_PATTERN_ENABLE;
1988 } else {
1989 rmesa->hw.set.cmd[SET_RE_CNTL] &= ~R200_PATTERN_ENABLE;
1990 }
1991 break;
1992
1993 case GL_NORMALIZE:
1994 R200_STATECHANGE( rmesa, tcl );
1995 if ( state ) {
1996 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_NORMALIZE_NORMALS;
1997 } else {
1998 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] &= ~R200_NORMALIZE_NORMALS;
1999 }
2000 break;
2001
2002 /* Pointsize registers on r200 only work for point sprites, and point smooth
2003 * doesn't work for point sprites (and isn't needed for 1.0 sized aa points).
2004 * In any case, setting pointmin == pointsizemax == 1.0 for aa points
2005 * is enough to satisfy conform.
2006 */
2007 case GL_POINT_SMOOTH:
2008 break;
2009
2010 /* These don't really do anything, as we don't use the 3vtx
2011 * primitives yet.
2012 */
2013 #if 0
2014 case GL_POLYGON_OFFSET_POINT:
2015 R200_STATECHANGE( rmesa, set );
2016 if ( state ) {
2017 rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_ZBIAS_ENABLE_POINT;
2018 } else {
2019 rmesa->hw.set.cmd[SET_SE_CNTL] &= ~R200_ZBIAS_ENABLE_POINT;
2020 }
2021 break;
2022
2023 case GL_POLYGON_OFFSET_LINE:
2024 R200_STATECHANGE( rmesa, set );
2025 if ( state ) {
2026 rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_ZBIAS_ENABLE_LINE;
2027 } else {
2028 rmesa->hw.set.cmd[SET_SE_CNTL] &= ~R200_ZBIAS_ENABLE_LINE;
2029 }
2030 break;
2031 #endif
2032
2033 case GL_POLYGON_OFFSET_FILL:
2034 R200_STATECHANGE( rmesa, set );
2035 if ( state ) {
2036 rmesa->hw.set.cmd[SET_SE_CNTL] |= R200_ZBIAS_ENABLE_TRI;
2037 } else {
2038 rmesa->hw.set.cmd[SET_SE_CNTL] &= ~R200_ZBIAS_ENABLE_TRI;
2039 }
2040 break;
2041
2042 case GL_POLYGON_SMOOTH:
2043 R200_STATECHANGE( rmesa, ctx );
2044 if ( state ) {
2045 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= R200_ANTI_ALIAS_POLY;
2046 } else {
2047 rmesa->hw.ctx.cmd[CTX_PP_CNTL] &= ~R200_ANTI_ALIAS_POLY;
2048 }
2049 break;
2050
2051 case GL_POLYGON_STIPPLE:
2052 R200_STATECHANGE(rmesa, set );
2053 if ( state ) {
2054 rmesa->hw.set.cmd[SET_RE_CNTL] |= R200_STIPPLE_ENABLE;
2055 } else {
2056 rmesa->hw.set.cmd[SET_RE_CNTL] &= ~R200_STIPPLE_ENABLE;
2057 }
2058 break;
2059
2060 case GL_RESCALE_NORMAL_EXT: {
2061 GLboolean tmp = ctx->_NeedEyeCoords ? state : !state;
2062 R200_STATECHANGE( rmesa, tcl );
2063 if ( tmp ) {
2064 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_RESCALE_NORMALS;
2065 } else {
2066 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] &= ~R200_RESCALE_NORMALS;
2067 }
2068 break;
2069 }
2070
2071 case GL_SCISSOR_TEST:
2072 R200_FIREVERTICES( rmesa );
2073 rmesa->state.scissor.enabled = state;
2074 r200UpdateScissor( ctx );
2075 break;
2076
2077 case GL_STENCIL_TEST:
2078 if ( rmesa->state.stencil.hwBuffer ) {
2079 R200_STATECHANGE( rmesa, ctx );
2080 if ( state ) {
2081 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |= R200_STENCIL_ENABLE;
2082 } else {
2083 rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~R200_STENCIL_ENABLE;
2084 }
2085 } else {
2086 FALLBACK( rmesa, R200_FALLBACK_STENCIL, state );
2087 }
2088 break;
2089
2090 case GL_TEXTURE_GEN_Q:
2091 case GL_TEXTURE_GEN_R:
2092 case GL_TEXTURE_GEN_S:
2093 case GL_TEXTURE_GEN_T:
2094 /* Picked up in r200UpdateTextureState.
2095 */
2096 rmesa->recheck_texgen[ctx->Texture.CurrentUnit] = GL_TRUE;
2097 break;
2098
2099 case GL_COLOR_SUM_EXT:
2100 r200UpdateSpecular ( ctx );
2101 break;
2102
2103 case GL_VERTEX_PROGRAM_ARB:
2104 if (!state) {
2105 GLuint i;
2106 R200_STATECHANGE( rmesa, vap );
2107 rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL] &= ~R200_VAP_PROG_VTX_SHADER_ENABLE;
2108 /* mark all tcl atoms (tcl vector state got overwritten) dirty
2109 not sure about tcl scalar state - we need at least grd
2110 with vert progs too.
2111 ucp looks like it doesn't get overwritten (may even work
2112 with vp for pos-invariant progs if we're lucky) */
2113 R200_STATECHANGE( rmesa, mtl[0] );
2114 R200_STATECHANGE( rmesa, mtl[1] );
2115 R200_STATECHANGE( rmesa, fog );
2116 R200_STATECHANGE( rmesa, glt );
2117 R200_STATECHANGE( rmesa, eye );
2118 for (i = R200_MTX_MV; i <= R200_MTX_TEX5; i++) {
2119 R200_STATECHANGE( rmesa, mat[i] );
2120 }
2121 for (i = 0 ; i < 8; i++) {
2122 R200_STATECHANGE( rmesa, lit[i] );
2123 }
2124 R200_STATECHANGE( rmesa, tcl );
2125 for (i = 0; i <= ctx->Const.MaxClipPlanes; i++) {
2126 if (ctx->Transform.ClipPlanesEnabled & (1 << i)) {
2127 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= (R200_UCP_ENABLE_0 << i);
2128 }
2129 /* else {
2130 rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~(R200_UCP_ENABLE_0 << i);
2131 }*/
2132 }
2133 /* FIXME: ugly as hell. need to call everything which might change tcl_output_vtxfmt0/1 and compsel */
2134 r200UpdateSpecular( ctx );
2135 r200Fogfv( ctx, GL_FOG_COORD_SRC, NULL );
2136 /* shouldn't be necessary, as it's picked up anyway in r200ValidateState (_NEW_PROGRAM),
2137 but without it doom3 locks up at always the same places. Why? */
2138 r200UpdateTextureState( ctx );
2139 /* if we call r200UpdateTextureState we need the code below because we are calling it with
2140 non-current derived enabled values which may revert the state atoms for frag progs even when
2141 they already got disabled... ugh
2142 Should really figure out why we need to call r200UpdateTextureState in the first place */
2143 GLuint unit;
2144 for (unit = 0; unit < R200_MAX_TEXTURE_UNITS; unit++) {
2145 R200_STATECHANGE( rmesa, pix[unit] );
2146 R200_STATECHANGE( rmesa, tex[unit] );
2147 rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT] &=
2148 ~(R200_TXFORMAT_ST_ROUTE_MASK | R200_TXFORMAT_LOOKUP_DISABLE);
2149 rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT] |= unit << R200_TXFORMAT_ST_ROUTE_SHIFT;
2150 /* need to guard this with drmSupportsFragmentShader? Should never get here if
2151 we don't announce ATI_fs, right? */
2152 rmesa->hw.tex[unit].cmd[TEX_PP_TXMULTI_CTL] = 0;
2153 }
2154 R200_STATECHANGE( rmesa, cst );
2155 R200_STATECHANGE( rmesa, tf );
2156 rmesa->hw.cst.cmd[CST_PP_CNTL_X] = 0;
2157 }
2158 else {
2159 R200_STATECHANGE( rmesa, vap );
2160 if (!rmesa->TclFallback) {
2161 /* FIXME: fglrx sets R200_VAP_SINGLE_BUF_STATE_ENABLE too. Do we need it? */
2162 rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL] |= R200_VAP_PROG_VTX_SHADER_ENABLE /*| R200_VAP_SINGLE_BUF_STATE_ENABLE*/;
2163 }
2164 R200_STATECHANGE( rmesa, vpi[0] );
2165 R200_STATECHANGE( rmesa, vpi[1] );
2166 R200_STATECHANGE( rmesa, vpp[0] );
2167 R200_STATECHANGE( rmesa, vpp[1] );
2168 }
2169 break;
2170
2171 case GL_FRAGMENT_SHADER_ATI:
2172 if ( !state ) {
2173 /* restore normal tex env colors and make sure tex env combine will get updated
2174 mark env atoms dirty (as their data was overwritten by afs even
2175 if they didn't change) and restore tex coord routing */
2176 GLuint unit;
2177 for (unit = 0; unit < R200_MAX_TEXTURE_UNITS; unit++) {
2178 R200_STATECHANGE( rmesa, pix[unit] );
2179 R200_STATECHANGE( rmesa, tex[unit] );
2180 rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT] &=
2181 ~(R200_TXFORMAT_ST_ROUTE_MASK | R200_TXFORMAT_LOOKUP_DISABLE);
2182 rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT] |= unit << R200_TXFORMAT_ST_ROUTE_SHIFT;
2183 /* need to guard this with drmSupportsFragmentShader? Should never get here if
2184 we don't announce ATI_fs, right? */
2185 rmesa->hw.tex[unit].cmd[TEX_PP_TXMULTI_CTL] = 0;
2186 }
2187 R200_STATECHANGE( rmesa, cst );
2188 R200_STATECHANGE( rmesa, tf );
2189 rmesa->hw.cst.cmd[CST_PP_CNTL_X] = 0;
2190 }
2191 else {
2192 /* need to mark this dirty as pix/tf atoms have overwritten the data
2193 even if the data in the atoms didn't change */
2194 R200_STATECHANGE( rmesa, atf );
2195 R200_STATECHANGE( rmesa, afs[1] );
2196 /* everything else picked up in r200UpdateTextureState hopefully */
2197 }
2198 break;
2199 default:
2200 return;
2201 }
2202 }
2203
2204
2205 void r200LightingSpaceChange( GLcontext *ctx )
2206 {
2207 r200ContextPtr rmesa = R200_CONTEXT(ctx);
2208 GLboolean tmp;
2209
2210 if (R200_DEBUG & DEBUG_STATE)
2211 fprintf(stderr, "%s %d BEFORE %x\n", __FUNCTION__, ctx->_NeedEyeCoords,
2212 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0]);
2213
2214 if (ctx->_NeedEyeCoords)
2215 tmp = ctx->Transform.RescaleNormals;
2216 else
2217 tmp = !ctx->Transform.RescaleNormals;
2218
2219 R200_STATECHANGE( rmesa, tcl );
2220 if ( tmp ) {
2221 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] |= R200_RESCALE_NORMALS;
2222 } else {
2223 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0] &= ~R200_RESCALE_NORMALS;
2224 }
2225
2226 if (R200_DEBUG & DEBUG_STATE)
2227 fprintf(stderr, "%s %d AFTER %x\n", __FUNCTION__, ctx->_NeedEyeCoords,
2228 rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL_0]);
2229 }
2230
2231 /* =============================================================
2232 * Deferred state management - matrices, textures, other?
2233 */
2234
2235
2236
2237
2238 static void upload_matrix( r200ContextPtr rmesa, GLfloat *src, int idx )
2239 {
2240 float *dest = ((float *)R200_DB_STATE( mat[idx] ))+MAT_ELT_0;
2241 int i;
2242
2243
2244 for (i = 0 ; i < 4 ; i++) {
2245 *dest++ = src[i];
2246 *dest++ = src[i+4];
2247 *dest++ = src[i+8];
2248 *dest++ = src[i+12];
2249 }
2250
2251 R200_DB_STATECHANGE( rmesa, &rmesa->hw.mat[idx] );
2252 }
2253
2254 static void upload_matrix_t( r200ContextPtr rmesa, const GLfloat *src, int idx )
2255 {
2256 float *dest = ((float *)R200_DB_STATE( mat[idx] ))+MAT_ELT_0;
2257 memcpy(dest, src, 16*sizeof(float));
2258 R200_DB_STATECHANGE( rmesa, &rmesa->hw.mat[idx] );
2259 }
2260
2261
2262 static void update_texturematrix( GLcontext *ctx )
2263 {
2264 r200ContextPtr rmesa = R200_CONTEXT( ctx );
2265 GLuint tpc = rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_0];
2266 GLuint compsel = rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL];
2267 int unit;
2268
2269 if (R200_DEBUG & DEBUG_STATE)
2270 fprintf(stderr, "%s before COMPSEL: %x\n", __FUNCTION__,
2271 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL]);
2272
2273 rmesa->TexMatEnabled = 0;
2274 rmesa->TexMatCompSel = 0;
2275
2276 for (unit = 0 ; unit < ctx->Const.MaxTextureUnits; unit++) {
2277 if (!ctx->Texture.Unit[unit]._ReallyEnabled)
2278 continue;
2279
2280 if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY) {
2281 rmesa->TexMatEnabled |= (R200_TEXGEN_TEXMAT_0_ENABLE|
2282 R200_TEXMAT_0_ENABLE) << unit;
2283
2284 rmesa->TexMatCompSel |= R200_OUTPUT_TEX_0 << unit;
2285
2286 if (rmesa->TexGenEnabled & (R200_TEXMAT_0_ENABLE << unit)) {
2287 /* Need to preconcatenate any active texgen
2288 * obj/eyeplane matrices:
2289 */
2290 _math_matrix_mul_matrix( &rmesa->tmpmat,
2291 ctx->TextureMatrixStack[unit].Top,
2292 &rmesa->TexGenMatrix[unit] );
2293 upload_matrix( rmesa, rmesa->tmpmat.m, R200_MTX_TEX0+unit );
2294 }
2295 else {
2296 upload_matrix( rmesa, ctx->TextureMatrixStack[unit].Top->m,
2297 R200_MTX_TEX0+unit );
2298 }
2299 }
2300 else if (rmesa->TexGenEnabled & (R200_TEXMAT_0_ENABLE << unit)) {
2301 upload_matrix( rmesa, rmesa->TexGenMatrix[unit].m,
2302 R200_MTX_TEX0+unit );
2303 }
2304 }
2305
2306 tpc = (rmesa->TexMatEnabled | rmesa->TexGenEnabled);
2307 if (tpc != rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_0]) {
2308 R200_STATECHANGE(rmesa, tcg);
2309 rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_0] = tpc;
2310 }
2311
2312 compsel &= ~R200_OUTPUT_TEX_MASK;
2313 compsel |= rmesa->TexMatCompSel | rmesa->TexGenCompSel;
2314 if (compsel != rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL]) {
2315 R200_STATECHANGE(rmesa, vtx);
2316 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_COMPSEL] = compsel;
2317 }
2318 }
2319
2320
2321
2322 /**
2323 * Tell the card where to render (offset, pitch).
2324 * Effected by glDrawBuffer, etc
2325 */
2326 void
2327 r200UpdateDrawBuffer(GLcontext *ctx)
2328 {
2329 r200ContextPtr rmesa = R200_CONTEXT(ctx);
2330 struct gl_framebuffer *fb = ctx->DrawBuffer;
2331 driRenderbuffer *drb;
2332
2333 if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT) {
2334 /* draw to front */
2335 drb = (driRenderbuffer *) fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
2336 }
2337 else if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT) {
2338 /* draw to back */
2339 drb = (driRenderbuffer *) fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer;
2340 }
2341 else {
2342 /* drawing to multiple buffers, or none */
2343 return;
2344 }
2345
2346 assert(drb);
2347 assert(drb->flippedPitch);
2348
2349 R200_STATECHANGE( rmesa, ctx );
2350
2351 /* Note: we used the (possibly) page-flipped values */
2352 rmesa->hw.ctx.cmd[CTX_RB3D_COLOROFFSET]
2353 = ((drb->flippedOffset + rmesa->r200Screen->fbLocation)
2354 & R200_COLOROFFSET_MASK);
2355 rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] = drb->flippedPitch;
2356 if (rmesa->sarea->tiling_enabled) {
2357 rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] |= R200_COLOR_TILE_ENABLE;
2358 }
2359 }
2360
2361
2362
2363 void r200ValidateState( GLcontext *ctx )
2364 {
2365 r200ContextPtr rmesa = R200_CONTEXT(ctx);
2366 GLuint new_state = rmesa->NewGLState;
2367
2368 if (new_state & (_NEW_BUFFERS | _NEW_COLOR | _NEW_PIXEL)) {
2369 r200UpdateDrawBuffer(ctx);
2370 }
2371
2372 if (new_state & (_NEW_TEXTURE | _NEW_PROGRAM)) {
2373 r200UpdateTextureState( ctx );
2374 new_state |= rmesa->NewGLState; /* may add TEXTURE_MATRIX */
2375 r200UpdateLocalViewer( ctx );
2376 }
2377
2378 /* FIXME: don't really need most of these when vertex progs are enabled */
2379
2380 /* Need an event driven matrix update?
2381 */
2382 if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
2383 upload_matrix( rmesa, ctx->_ModelProjectMatrix.m, R200_MTX_MVP );
2384
2385 /* Need these for lighting (shouldn't upload otherwise)
2386 */
2387 if (new_state & (_NEW_MODELVIEW)) {
2388 upload_matrix( rmesa, ctx->ModelviewMatrixStack.Top->m, R200_MTX_MV );
2389 upload_matrix_t( rmesa, ctx->ModelviewMatrixStack.Top->inv, R200_MTX_IMV );
2390 }
2391
2392 /* Does this need to be triggered on eg. modelview for
2393 * texgen-derived objplane/eyeplane matrices?
2394 */
2395 if (new_state & (_NEW_TEXTURE|_NEW_TEXTURE_MATRIX)) {
2396 update_texturematrix( ctx );
2397 }
2398
2399 if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW|_MESA_NEW_NEED_EYE_COORDS)) {
2400 update_light( ctx );
2401 }
2402
2403 /* emit all active clip planes if projection matrix changes.
2404 */
2405 if (new_state & (_NEW_PROJECTION)) {
2406 if (ctx->Transform.ClipPlanesEnabled)
2407 r200UpdateClipPlanes( ctx );
2408 }
2409
2410 if (new_state & (_NEW_PROGRAM|
2411 /* need to test for pretty much anything due to possible parameter bindings */
2412 _NEW_MODELVIEW|_NEW_PROJECTION|_NEW_TRANSFORM|
2413 _NEW_LIGHT|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX|
2414 _NEW_FOG|_NEW_POINT|_NEW_TRACK_MATRIX)) {
2415 if (ctx->VertexProgram._Enabled) {
2416 r200SetupVertexProg( ctx );
2417 }
2418 else TCL_FALLBACK(ctx, R200_TCL_FALLBACK_VERTEX_PROGRAM, 0);
2419 }
2420
2421 rmesa->NewGLState = 0;
2422 }
2423
2424
2425 static void r200InvalidateState( GLcontext *ctx, GLuint new_state )
2426 {
2427 _swrast_InvalidateState( ctx, new_state );
2428 _swsetup_InvalidateState( ctx, new_state );
2429 _ac_InvalidateState( ctx, new_state );
2430 _tnl_InvalidateState( ctx, new_state );
2431 _ae_invalidate_state( ctx, new_state );
2432 R200_CONTEXT(ctx)->NewGLState |= new_state;
2433 r200VtxfmtInvalidate( ctx );
2434 }
2435
2436 /* A hack. The r200 can actually cope just fine with materials
2437 * between begin/ends, so fix this. But how ?
2438 */
2439 static GLboolean check_material( GLcontext *ctx )
2440 {
2441 TNLcontext *tnl = TNL_CONTEXT(ctx);
2442 GLint i;
2443
2444 for (i = _TNL_ATTRIB_MAT_FRONT_AMBIENT;
2445 i < _TNL_ATTRIB_MAT_BACK_INDEXES;
2446 i++)
2447 if (tnl->vb.AttribPtr[i] &&
2448 tnl->vb.AttribPtr[i]->stride)
2449 return GL_TRUE;
2450
2451 return GL_FALSE;
2452 }
2453
2454 static void r200WrapRunPipeline( GLcontext *ctx )
2455 {
2456 r200ContextPtr rmesa = R200_CONTEXT(ctx);
2457 GLboolean has_material;
2458
2459 if (0)
2460 fprintf(stderr, "%s, newstate: %x\n", __FUNCTION__, rmesa->NewGLState);
2461
2462 /* Validate state:
2463 */
2464 if (rmesa->NewGLState)
2465 r200ValidateState( ctx );
2466
2467 has_material = (ctx->Light.Enabled && check_material( ctx ));
2468
2469 if (has_material) {
2470 TCL_FALLBACK( ctx, R200_TCL_FALLBACK_MATERIAL, GL_TRUE );
2471 }
2472
2473 /* Run the pipeline.
2474 */
2475 _tnl_run_pipeline( ctx );
2476
2477 if (has_material) {
2478 TCL_FALLBACK( ctx, R200_TCL_FALLBACK_MATERIAL, GL_FALSE );
2479 }
2480 }
2481
2482
2483 /* Initialize the driver's state functions.
2484 */
2485 void r200InitStateFuncs( struct dd_function_table *functions )
2486 {
2487 functions->UpdateState = r200InvalidateState;
2488 functions->LightingSpaceChange = r200LightingSpaceChange;
2489
2490 functions->DrawBuffer = r200DrawBuffer;
2491 functions->ReadBuffer = r200ReadBuffer;
2492
2493 functions->AlphaFunc = r200AlphaFunc;
2494 functions->BlendColor = r200BlendColor;
2495 functions->BlendEquationSeparate = r200BlendEquationSeparate;
2496 functions->BlendFuncSeparate = r200BlendFuncSeparate;
2497 functions->ClearColor = r200ClearColor;
2498 functions->ClearDepth = r200ClearDepth;
2499 functions->ClearIndex = NULL;
2500 functions->ClearStencil = r200ClearStencil;
2501 functions->ClipPlane = r200ClipPlane;
2502 functions->ColorMask = r200ColorMask;
2503 functions->CullFace = r200CullFace;
2504 functions->DepthFunc = r200DepthFunc;
2505 functions->DepthMask = r200DepthMask;
2506 functions->DepthRange = r200DepthRange;
2507 functions->Enable = r200Enable;
2508 functions->Fogfv = r200Fogfv;
2509 functions->FrontFace = r200FrontFace;
2510 functions->Hint = NULL;
2511 functions->IndexMask = NULL;
2512 functions->LightModelfv = r200LightModelfv;
2513 functions->Lightfv = r200Lightfv;
2514 functions->LineStipple = r200LineStipple;
2515 functions->LineWidth = r200LineWidth;
2516 functions->LogicOpcode = r200LogicOpCode;
2517 functions->PolygonMode = r200PolygonMode;
2518 functions->PolygonOffset = r200PolygonOffset;
2519 functions->PolygonStipple = r200PolygonStipple;
2520 functions->PointSize = r200PointSize;
2521 functions->RenderMode = r200RenderMode;
2522 functions->Scissor = r200Scissor;
2523 functions->ShadeModel = r200ShadeModel;
2524 functions->StencilFuncSeparate = r200StencilFuncSeparate;
2525 functions->StencilMaskSeparate = r200StencilMaskSeparate;
2526 functions->StencilOpSeparate = r200StencilOpSeparate;
2527 functions->Viewport = r200Viewport;
2528
2529 /* Swrast hooks for imaging extensions:
2530 */
2531 functions->CopyColorTable = _swrast_CopyColorTable;
2532 functions->CopyColorSubTable = _swrast_CopyColorSubTable;
2533 functions->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
2534 functions->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
2535 }
2536
2537
2538 void r200InitTnlFuncs( GLcontext *ctx )
2539 {
2540 TNL_CONTEXT(ctx)->Driver.NotifyMaterialChange = r200UpdateMaterial;
2541 TNL_CONTEXT(ctx)->Driver.RunPipeline = r200WrapRunPipeline;
2542 }