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