projects / mesa.git / blob
? search:


4b3cb873b8c2902017178f927c0e79cae97fd358
[mesa.git] / src / mesa / drivers / dri / i810 / i810state.c
1 /* $XFree86: xc/lib/GL/mesa/src/drv/i810/i810state.c,v 1.9 2002/10/30 12:51:33 alanh Exp $ */
2
3 #include <stdio.h>
4
5 #include "glheader.h"
6 #include "context.h"
7 #include "macros.h"
8 #include "dd.h"
9 #include "colormac.h"
10
11 #include "texmem.h"
12
13 #include "i810screen.h"
14 #include "i810_dri.h"
15
16 #include "i810context.h"
17 #include "i810state.h"
18 #include "i810tex.h"
19 #include "i810vb.h"
20 #include "i810tris.h"
21 #include "i810ioctl.h"
22
23 #include "swrast/swrast.h"
24 #include "tnl/tnl.h"
25 #include "vbo/vbo.h"
26 #include "swrast_setup/swrast_setup.h"
27
28 #include "tnl/t_pipeline.h"
29
30 static INLINE GLuint i810PackColor(GLuint format,
31 GLubyte r, GLubyte g,
32 GLubyte b, GLubyte a)
33 {
34
35 if (I810_DEBUG&DEBUG_DRI)
36 fprintf(stderr, "%s\n", __FUNCTION__);
37
38 switch (format) {
39 case DV_PF_555:
40 return PACK_COLOR_1555( a, r, g, b );
41 case DV_PF_565:
42 return PACK_COLOR_565( r, g, b );
43 default:
44 fprintf(stderr, "unknown format %d\n", (int)format);
45 return 0;
46 }
47 }
48
49
50 static void i810AlphaFunc(GLcontext *ctx, GLenum func, GLfloat ref)
51 {
52 i810ContextPtr imesa = I810_CONTEXT(ctx);
53 GLuint a = (ZA_UPDATE_ALPHAFUNC|ZA_UPDATE_ALPHAREF);
54 GLubyte refByte;
55
56 CLAMPED_FLOAT_TO_UBYTE(refByte, ref);
57
58 switch (ctx->Color.AlphaFunc) {
59 case GL_NEVER: a |= ZA_ALPHA_NEVER; break;
60 case GL_LESS: a |= ZA_ALPHA_LESS; break;
61 case GL_GEQUAL: a |= ZA_ALPHA_GEQUAL; break;
62 case GL_LEQUAL: a |= ZA_ALPHA_LEQUAL; break;
63 case GL_GREATER: a |= ZA_ALPHA_GREATER; break;
64 case GL_NOTEQUAL: a |= ZA_ALPHA_NOTEQUAL; break;
65 case GL_EQUAL: a |= ZA_ALPHA_EQUAL; break;
66 case GL_ALWAYS: a |= ZA_ALPHA_ALWAYS; break;
67 default: return;
68 }
69
70 a |= ((refByte & 0xfc) << ZA_ALPHAREF_SHIFT);
71
72 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
73 imesa->Setup[I810_CTXREG_ZA] &= ~(ZA_ALPHA_MASK|ZA_ALPHAREF_MASK);
74 imesa->Setup[I810_CTXREG_ZA] |= a;
75 }
76
77 static void i810BlendEquationSeparate(GLcontext *ctx,
78 GLenum modeRGB, GLenum modeA)
79 {
80 assert( modeRGB == modeA );
81
82 /* Can only do GL_ADD equation in hardware */
83 FALLBACK( I810_CONTEXT(ctx), I810_FALLBACK_BLEND_EQ,
84 modeRGB != GL_FUNC_ADD);
85
86 /* BlendEquation sets ColorLogicOpEnabled in an unexpected
87 * manner.
88 */
89 FALLBACK( I810_CONTEXT(ctx), I810_FALLBACK_LOGICOP,
90 (ctx->Color.ColorLogicOpEnabled &&
91 ctx->Color.LogicOp != GL_COPY));
92 }
93
94 static void i810BlendFuncSeparate( GLcontext *ctx, GLenum sfactorRGB,
95 GLenum dfactorRGB, GLenum sfactorA,
96 GLenum dfactorA )
97 {
98 i810ContextPtr imesa = I810_CONTEXT(ctx);
99 GLuint a = SDM_UPDATE_SRC_BLEND | SDM_UPDATE_DST_BLEND;
100 GLboolean fallback = GL_FALSE;
101
102 switch (ctx->Color.BlendSrcRGB) {
103 case GL_ZERO: a |= SDM_SRC_ZERO; break;
104 case GL_ONE: a |= SDM_SRC_ONE; break;
105 case GL_SRC_COLOR: a |= SDM_SRC_SRC_COLOR; break;
106 case GL_ONE_MINUS_SRC_COLOR: a |= SDM_SRC_INV_SRC_COLOR; break;
107 case GL_SRC_ALPHA: a |= SDM_SRC_SRC_ALPHA; break;
108 case GL_ONE_MINUS_SRC_ALPHA: a |= SDM_SRC_INV_SRC_ALPHA; break;
109 case GL_DST_ALPHA: a |= SDM_SRC_ONE; break;
110 case GL_ONE_MINUS_DST_ALPHA: a |= SDM_SRC_ZERO; break;
111 case GL_DST_COLOR: a |= SDM_SRC_DST_COLOR; break;
112 case GL_ONE_MINUS_DST_COLOR: a |= SDM_SRC_INV_DST_COLOR; break;
113
114 /* (f, f, f, 1), f = min(As, 1 - Ad) = min(As, 1 - 1) = 0
115 * So (f, f, f, 1) = (0, 0, 0, 1). Since there is no destination alpha and
116 * the only supported alpha operation is GL_FUNC_ADD, the result modulating
117 * the source alpha with the alpha factor is largely irrelevant.
118 */
119 case GL_SRC_ALPHA_SATURATE: a |= SDM_SRC_ZERO; break;
120
121 case GL_CONSTANT_COLOR:
122 case GL_ONE_MINUS_CONSTANT_COLOR:
123 case GL_CONSTANT_ALPHA:
124 case GL_ONE_MINUS_CONSTANT_ALPHA:
125 fallback = GL_TRUE;
126 break;
127 default:
128 return;
129 }
130
131 switch (ctx->Color.BlendDstRGB) {
132 case GL_ZERO: a |= SDM_DST_ZERO; break;
133 case GL_ONE: a |= SDM_DST_ONE; break;
134 case GL_SRC_COLOR: a |= SDM_DST_SRC_COLOR; break;
135 case GL_ONE_MINUS_SRC_COLOR: a |= SDM_DST_INV_SRC_COLOR; break;
136 case GL_SRC_ALPHA: a |= SDM_DST_SRC_ALPHA; break;
137 case GL_ONE_MINUS_SRC_ALPHA: a |= SDM_DST_INV_SRC_ALPHA; break;
138 case GL_DST_ALPHA: a |= SDM_DST_ONE; break;
139 case GL_ONE_MINUS_DST_ALPHA: a |= SDM_DST_ZERO; break;
140 case GL_DST_COLOR: a |= SDM_DST_DST_COLOR; break;
141 case GL_ONE_MINUS_DST_COLOR: a |= SDM_DST_INV_DST_COLOR; break;
142
143 case GL_CONSTANT_COLOR:
144 case GL_ONE_MINUS_CONSTANT_COLOR:
145 case GL_CONSTANT_ALPHA:
146 case GL_ONE_MINUS_CONSTANT_ALPHA:
147 fallback = GL_TRUE;
148 break;
149 default:
150 return;
151 }
152
153 FALLBACK( imesa, I810_FALLBACK_BLEND_FUNC, fallback);
154 if (!fallback) {
155 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
156 imesa->Setup[I810_CTXREG_SDM] &= ~(SDM_SRC_MASK|SDM_DST_MASK);
157 imesa->Setup[I810_CTXREG_SDM] |= a;
158 }
159 }
160
161
162
163 static void i810DepthFunc(GLcontext *ctx, GLenum func)
164 {
165 i810ContextPtr imesa = I810_CONTEXT(ctx);
166 int zmode;
167
168 switch(func) {
169 case GL_NEVER: zmode = LCS_Z_NEVER; break;
170 case GL_ALWAYS: zmode = LCS_Z_ALWAYS; break;
171 case GL_LESS: zmode = LCS_Z_LESS; break;
172 case GL_LEQUAL: zmode = LCS_Z_LEQUAL; break;
173 case GL_EQUAL: zmode = LCS_Z_EQUAL; break;
174 case GL_GREATER: zmode = LCS_Z_GREATER; break;
175 case GL_GEQUAL: zmode = LCS_Z_GEQUAL; break;
176 case GL_NOTEQUAL: zmode = LCS_Z_NOTEQUAL; break;
177 default: return;
178 }
179
180 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
181 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_Z_MASK;
182 imesa->Setup[I810_CTXREG_LCS] |= zmode;
183 }
184
185 static void i810DepthMask(GLcontext *ctx, GLboolean flag)
186 {
187 i810ContextPtr imesa = I810_CONTEXT(ctx);
188 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
189
190 if (flag)
191 imesa->Setup[I810_CTXREG_B2] |= B2_ZB_WRITE_ENABLE;
192 else
193 imesa->Setup[I810_CTXREG_B2] &= ~B2_ZB_WRITE_ENABLE;
194 }
195
196
197 /* =============================================================
198 * Polygon stipple
199 *
200 * The i810 supports a 4x4 stipple natively, GL wants 32x32.
201 * Fortunately stipple is usually a repeating pattern.
202 */
203 static void i810PolygonStipple( GLcontext *ctx, const GLubyte *mask )
204 {
205 i810ContextPtr imesa = I810_CONTEXT(ctx);
206 const GLubyte *m = mask;
207 GLubyte p[4];
208 int i,j,k;
209 int active = (ctx->Polygon.StippleFlag &&
210 imesa->reduced_primitive == GL_TRIANGLES);
211 GLuint newMask;
212
213 if (active) {
214 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
215 imesa->Setup[I810_CTXREG_ST1] &= ~ST1_ENABLE;
216 }
217
218 p[0] = mask[12] & 0xf; p[0] |= p[0] << 4;
219 p[1] = mask[8] & 0xf; p[1] |= p[1] << 4;
220 p[2] = mask[4] & 0xf; p[2] |= p[2] << 4;
221 p[3] = mask[0] & 0xf; p[3] |= p[3] << 4;
222
223 for (k = 0 ; k < 8 ; k++)
224 for (j = 0 ; j < 4; j++)
225 for (i = 0 ; i < 4 ; i++)
226 if (*m++ != p[j]) {
227 imesa->stipple_in_hw = 0;
228 return;
229 }
230
231 newMask = ((p[0] & 0xf) << 0) |
232 ((p[1] & 0xf) << 4) |
233 ((p[2] & 0xf) << 8) |
234 ((p[3] & 0xf) << 12);
235
236 if (newMask == 0xffff) {
237 /* this is needed to make conform pass */
238 imesa->stipple_in_hw = 0;
239 return;
240 }
241
242 imesa->Setup[I810_CTXREG_ST1] &= ~0xffff;
243 imesa->Setup[I810_CTXREG_ST1] |= newMask;
244 imesa->stipple_in_hw = 1;
245
246 if (active)
247 imesa->Setup[I810_CTXREG_ST1] |= ST1_ENABLE;
248 }
249
250
251
252 /* =============================================================
253 * Hardware clipping
254 */
255
256
257 static void i810Scissor( GLcontext *ctx, GLint x, GLint y,
258 GLsizei w, GLsizei h )
259 {
260 i810ContextPtr imesa = I810_CONTEXT(ctx);
261
262 if (ctx->Scissor.Enabled) {
263 I810_FIREVERTICES(imesa); /* don't pipeline cliprect changes */
264 imesa->upload_cliprects = GL_TRUE;
265 }
266
267 imesa->scissor_rect.x1 = x;
268 imesa->scissor_rect.y1 = imesa->driDrawable->h - (y + h);
269 imesa->scissor_rect.x2 = x + w;
270 imesa->scissor_rect.y2 = imesa->driDrawable->h - y;
271 }
272
273
274 static void i810LogicOp( GLcontext *ctx, GLenum opcode )
275 {
276 i810ContextPtr imesa = I810_CONTEXT(ctx);
277 FALLBACK( imesa, I810_FALLBACK_LOGICOP,
278 (ctx->Color.ColorLogicOpEnabled && opcode != GL_COPY) );
279 }
280
281 /* Fallback to swrast for select and feedback.
282 */
283 static void i810RenderMode( GLcontext *ctx, GLenum mode )
284 {
285 i810ContextPtr imesa = I810_CONTEXT(ctx);
286 FALLBACK( imesa, I810_FALLBACK_RENDERMODE, (mode != GL_RENDER) );
287 }
288
289
290 void i810DrawBuffer(GLcontext *ctx, GLenum mode )
291 {
292 i810ContextPtr imesa = I810_CONTEXT(ctx);
293 int front = 0;
294
295 if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
296 /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
297 FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_TRUE );
298 return;
299 }
300
301 switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0]) {
302 case BUFFER_FRONT_LEFT:
303 front = 1;
304 break;
305 case BUFFER_BACK_LEFT:
306 front = 0;
307 break;
308 default:
309 FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_TRUE );
310 return;
311 }
312
313 if ( imesa->sarea->pf_current_page == 1 )
314 front ^= 1;
315
316 FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_FALSE );
317 I810_FIREVERTICES(imesa);
318 I810_STATECHANGE(imesa, I810_UPLOAD_BUFFERS);
319
320 if (front)
321 {
322 imesa->BufferSetup[I810_DESTREG_DI1] = (imesa->i810Screen->fbOffset |
323 imesa->i810Screen->backPitchBits);
324 i810XMesaSetFrontClipRects( imesa );
325 }
326 else
327 {
328 imesa->BufferSetup[I810_DESTREG_DI1] = (imesa->i810Screen->backOffset |
329 imesa->i810Screen->backPitchBits);
330 i810XMesaSetBackClipRects( imesa );
331 }
332 }
333
334
335 static void i810ReadBuffer(GLcontext *ctx, GLenum mode )
336 {
337 /* XXX anything? */
338 }
339
340
341 static void i810ClearColor(GLcontext *ctx, const GLfloat color[4] )
342 {
343 i810ContextPtr imesa = I810_CONTEXT(ctx);
344 GLubyte c[4];
345 CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
346 CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
347 CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
348 CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
349 imesa->ClearColor = i810PackColor( imesa->i810Screen->fbFormat,
350 c[0], c[1], c[2], c[3] );
351 }
352
353
354 /* =============================================================
355 * Culling - the i810 isn't quite as clean here as the rest of
356 * its interfaces, but it's not bad.
357 */
358 static void i810CullFaceFrontFace(GLcontext *ctx, GLenum unused)
359 {
360 i810ContextPtr imesa = I810_CONTEXT(ctx);
361 GLuint mode = LCS_CULL_BOTH;
362
363 if (ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) {
364 mode = LCS_CULL_CW;
365 if (ctx->Polygon.CullFaceMode == GL_FRONT)
366 mode ^= (LCS_CULL_CW ^ LCS_CULL_CCW);
367 if (ctx->Polygon.FrontFace != GL_CCW)
368 mode ^= (LCS_CULL_CW ^ LCS_CULL_CCW);
369 }
370
371 imesa->LcsCullMode = mode;
372
373 if (ctx->Polygon.CullFlag)
374 {
375 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
376 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_CULL_MASK;
377 imesa->Setup[I810_CTXREG_LCS] |= mode;
378 }
379 }
380
381
382 static void i810LineWidth( GLcontext *ctx, GLfloat widthf )
383 {
384 i810ContextPtr imesa = I810_CONTEXT( ctx );
385 /* AA, non-AA limits are same */
386 const int width = (int) CLAMP(ctx->Line.Width,
387 ctx->Const.MinLineWidth,
388 ctx->Const.MaxLineWidth);
389
390 imesa->LcsLineWidth = 0;
391 if (width & 1) imesa->LcsLineWidth |= LCS_LINEWIDTH_1_0;
392 if (width & 2) imesa->LcsLineWidth |= LCS_LINEWIDTH_2_0;
393
394 if (imesa->reduced_primitive == GL_LINES) {
395 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
396 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_3_0;
397 imesa->Setup[I810_CTXREG_LCS] |= imesa->LcsLineWidth;
398 }
399 }
400
401 static void i810PointSize( GLcontext *ctx, GLfloat sz )
402 {
403 i810ContextPtr imesa = I810_CONTEXT( ctx );
404 /* AA, non-AA limits are same */
405 const int size = (int) CLAMP(ctx->Point.Size,
406 ctx->Const.MinPointSize,
407 ctx->Const.MaxPointSize);
408
409 imesa->LcsPointSize = 0;
410 if (size & 1) imesa->LcsPointSize |= LCS_LINEWIDTH_1_0;
411 if (size & 2) imesa->LcsPointSize |= LCS_LINEWIDTH_2_0;
412
413 if (imesa->reduced_primitive == GL_POINTS) {
414 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
415 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_3_0;
416 imesa->Setup[I810_CTXREG_LCS] |= imesa->LcsPointSize;
417 }
418 }
419
420 /* =============================================================
421 * Color masks
422 */
423
424 static void i810ColorMask(GLcontext *ctx,
425 GLboolean r, GLboolean g,
426 GLboolean b, GLboolean a )
427 {
428 i810ContextPtr imesa = I810_CONTEXT( ctx );
429 GLuint tmp = 0;
430
431 if (r && g && b) {
432 tmp = imesa->Setup[I810_CTXREG_B2] | B2_FB_WRITE_ENABLE;
433 FALLBACK( imesa, I810_FALLBACK_COLORMASK, GL_FALSE );
434 } else if (!r && !g && !b) {
435 tmp = imesa->Setup[I810_CTXREG_B2] & ~B2_FB_WRITE_ENABLE;
436 FALLBACK( imesa, I810_FALLBACK_COLORMASK, GL_FALSE );
437 } else {
438 FALLBACK( imesa, I810_FALLBACK_COLORMASK, GL_TRUE );
439 return;
440 }
441
442 if (tmp != imesa->Setup[I810_CTXREG_B2]) {
443 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
444 imesa->Setup[I810_CTXREG_B2] = tmp;
445 imesa->dirty |= I810_UPLOAD_CTX;
446 }
447 }
448
449 /* Seperate specular not fully implemented on the i810.
450 */
451 static void i810LightModelfv(GLcontext *ctx, GLenum pname,
452 const GLfloat *param)
453 {
454 if (pname == GL_LIGHT_MODEL_COLOR_CONTROL)
455 {
456 i810ContextPtr imesa = I810_CONTEXT( ctx );
457 FALLBACK( imesa, I810_FALLBACK_SPECULAR,
458 (ctx->Light.Enabled &&
459 ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR));
460 }
461 }
462
463 /* But the 815 has it...
464 */
465 static void i810LightModelfv_i815(GLcontext *ctx, GLenum pname,
466 const GLfloat *param)
467 {
468 if (pname == GL_LIGHT_MODEL_COLOR_CONTROL)
469 {
470 i810ContextPtr imesa = I810_CONTEXT( ctx );
471
472 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
473 if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
474 imesa->Setup[I810_CTXREG_B1] |= B1_SPEC_ENABLE;
475 else
476 imesa->Setup[I810_CTXREG_B1] &= ~B1_SPEC_ENABLE;
477 }
478 }
479
480 /* In Mesa 3.5 we can reliably do native flatshading.
481 */
482 static void i810ShadeModel(GLcontext *ctx, GLenum mode)
483 {
484 i810ContextPtr imesa = I810_CONTEXT(ctx);
485 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
486 if (mode == GL_FLAT)
487 imesa->Setup[I810_CTXREG_LCS] |= LCS_INTERP_FLAT;
488 else
489 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_INTERP_FLAT;
490 }
491
492
493
494 /* =============================================================
495 * Fog
496 */
497 static void i810Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *param)
498 {
499 i810ContextPtr imesa = I810_CONTEXT(ctx);
500
501 if (pname == GL_FOG_COLOR) {
502 GLuint color = (((GLubyte)(ctx->Fog.Color[0]*255.0F) << 16) |
503 ((GLubyte)(ctx->Fog.Color[1]*255.0F) << 8) |
504 ((GLubyte)(ctx->Fog.Color[2]*255.0F) << 0));
505
506 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
507 imesa->Setup[I810_CTXREG_FOG] = ((GFX_OP_FOG_COLOR | color) &
508 ~FOG_RESERVED_MASK);
509 }
510 }
511
512
513 /* =============================================================
514 */
515 static void i810Enable(GLcontext *ctx, GLenum cap, GLboolean state)
516 {
517 i810ContextPtr imesa = I810_CONTEXT(ctx);
518
519 switch(cap) {
520 case GL_ALPHA_TEST:
521 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
522 imesa->Setup[I810_CTXREG_B1] &= ~B1_ALPHA_TEST_ENABLE;
523 if (state)
524 imesa->Setup[I810_CTXREG_B1] |= B1_ALPHA_TEST_ENABLE;
525 break;
526 case GL_BLEND:
527 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
528 imesa->Setup[I810_CTXREG_B1] &= ~B1_BLEND_ENABLE;
529 if (state)
530 imesa->Setup[I810_CTXREG_B1] |= B1_BLEND_ENABLE;
531
532 /* For some reason enable(GL_BLEND) affects ColorLogicOpEnabled.
533 */
534 FALLBACK( imesa, I810_FALLBACK_LOGICOP,
535 (ctx->Color.ColorLogicOpEnabled &&
536 ctx->Color.LogicOp != GL_COPY));
537 break;
538 case GL_DEPTH_TEST:
539 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
540 imesa->Setup[I810_CTXREG_B1] &= ~B1_Z_TEST_ENABLE;
541 if (state)
542 imesa->Setup[I810_CTXREG_B1] |= B1_Z_TEST_ENABLE;
543 break;
544 case GL_SCISSOR_TEST:
545 /* XXX without these next two lines, conform's scissor test fails */
546 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
547 I810_STATECHANGE(imesa, I810_UPLOAD_BUFFERS);
548 I810_FIREVERTICES(imesa); /* don't pipeline cliprect changes */
549 imesa->upload_cliprects = GL_TRUE;
550 imesa->scissor = state;
551 break;
552 case GL_POLYGON_STIPPLE:
553 if (imesa->stipple_in_hw && imesa->reduced_primitive == GL_TRIANGLES)
554 {
555 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
556 imesa->Setup[I810_CTXREG_ST1] &= ~ST1_ENABLE;
557 if (state)
558 imesa->Setup[I810_CTXREG_ST1] |= ST1_ENABLE;
559 }
560 break;
561 case GL_LINE_SMOOTH:
562 /* Need to fatten the lines by .5, or they disappear...
563 */
564 if (imesa->reduced_primitive == GL_LINES) {
565 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
566 imesa->Setup[I810_CTXREG_AA] &= ~AA_ENABLE;
567 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_0_5;
568 if (state) {
569 imesa->Setup[I810_CTXREG_AA] |= AA_ENABLE;
570 imesa->Setup[I810_CTXREG_LCS] |= LCS_LINEWIDTH_0_5;
571 }
572 }
573 break;
574 case GL_POINT_SMOOTH:
575 if (imesa->reduced_primitive == GL_POINTS) {
576 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
577 imesa->Setup[I810_CTXREG_AA] &= ~AA_ENABLE;
578 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_0_5;
579 if (state) {
580 imesa->Setup[I810_CTXREG_AA] |= AA_ENABLE;
581 imesa->Setup[I810_CTXREG_LCS] |= LCS_LINEWIDTH_0_5;
582 }
583 }
584 break;
585 case GL_POLYGON_SMOOTH:
586 if (imesa->reduced_primitive == GL_TRIANGLES) {
587 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
588 imesa->Setup[I810_CTXREG_AA] &= ~AA_ENABLE;
589 if (state)
590 imesa->Setup[I810_CTXREG_AA] |= AA_ENABLE;
591 }
592 break;
593 case GL_FOG:
594 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
595 imesa->Setup[I810_CTXREG_B1] &= ~B1_FOG_ENABLE;
596 if (state)
597 imesa->Setup[I810_CTXREG_B1] |= B1_FOG_ENABLE;
598 break;
599 case GL_CULL_FACE:
600 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
601 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_CULL_MASK;
602 if (state)
603 imesa->Setup[I810_CTXREG_LCS] |= imesa->LcsCullMode;
604 else
605 imesa->Setup[I810_CTXREG_LCS] |= LCS_CULL_DISABLE;
606 break;
607 case GL_TEXTURE_2D:
608 case GL_TEXTURE_RECTANGLE_NV:
609 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
610 if (ctx->Texture.CurrentUnit == 0) {
611 imesa->Setup[I810_CTXREG_MT] &= ~MT_TEXEL0_ENABLE;
612 if (state)
613 imesa->Setup[I810_CTXREG_MT] |= MT_TEXEL0_ENABLE;
614 } else {
615 imesa->Setup[I810_CTXREG_MT] &= ~MT_TEXEL1_ENABLE;
616 if (state)
617 imesa->Setup[I810_CTXREG_MT] |= MT_TEXEL1_ENABLE;
618 }
619 break;
620 case GL_COLOR_LOGIC_OP:
621 FALLBACK( imesa, I810_FALLBACK_LOGICOP,
622 (state && ctx->Color.LogicOp != GL_COPY));
623 break;
624 case GL_STENCIL_TEST:
625 FALLBACK( imesa, I810_FALLBACK_STENCIL, state );
626 break;
627 default:
628 ;
629 }
630 }
631
632
633
634
635
636
637
638 /* =============================================================
639 */
640
641
642
643
644 void i810EmitDrawingRectangle( i810ContextPtr imesa )
645 {
646 __DRIdrawablePrivate *dPriv = imesa->driDrawable;
647 i810ScreenPrivate *i810Screen = imesa->i810Screen;
648 int x0 = imesa->drawX;
649 int y0 = imesa->drawY;
650 int x1 = x0 + dPriv->w;
651 int y1 = y0 + dPriv->h;
652 GLuint dr2, dr3, dr4;
653
654
655 /* Coordinate origin of the window - may be offscreen.
656 */
657 dr4 = imesa->BufferSetup[I810_DESTREG_DR4] = ((y0<<16) |
658 (((unsigned)x0)&0xFFFF));
659
660 /* Clip to screen.
661 */
662 if (x0 < 0) x0 = 0;
663 if (y0 < 0) y0 = 0;
664 if (x1 > i810Screen->width-1) x1 = i810Screen->width-1;
665 if (y1 > i810Screen->height-1) y1 = i810Screen->height-1;
666
667
668 /* Onscreen drawing rectangle.
669 */
670 dr2 = imesa->BufferSetup[I810_DESTREG_DR2] = ((y0<<16) | x0);
671 dr3 = imesa->BufferSetup[I810_DESTREG_DR3] = (((y1+1)<<16) | (x1+1));
672
673
674 imesa->dirty |= I810_UPLOAD_BUFFERS;
675 }
676
677
678
679 static void i810CalcViewport( GLcontext *ctx )
680 {
681 i810ContextPtr imesa = I810_CONTEXT(ctx);
682 const GLfloat *v = ctx->Viewport._WindowMap.m;
683 GLfloat *m = imesa->ViewportMatrix.m;
684
685 /* See also i810_translate_vertex. SUBPIXEL adjustments can be done
686 * via state vars, too.
687 */
688 m[MAT_SX] = v[MAT_SX];
689 m[MAT_TX] = v[MAT_TX] + SUBPIXEL_X;
690 m[MAT_SY] = - v[MAT_SY];
691 m[MAT_TY] = - v[MAT_TY] + imesa->driDrawable->h + SUBPIXEL_Y;
692 m[MAT_SZ] = v[MAT_SZ] * (1.0 / 0xffff);
693 m[MAT_TZ] = v[MAT_TZ] * (1.0 / 0xffff);
694 }
695
696 static void i810Viewport( GLcontext *ctx,
697 GLint x, GLint y,
698 GLsizei width, GLsizei height )
699 {
700 i810CalcViewport( ctx );
701 }
702
703 static void i810DepthRange( GLcontext *ctx,
704 GLclampd nearval, GLclampd farval )
705 {
706 i810CalcViewport( ctx );
707 }
708
709
710
711 void i810PrintDirty( const char *msg, GLuint state )
712 {
713 fprintf(stderr, "%s (0x%x): %s%s%s%s\n",
714 msg,
715 (unsigned int) state,
716 (state & I810_UPLOAD_TEX0) ? "upload-tex0, " : "",
717 (state & I810_UPLOAD_TEX1) ? "upload-tex1, " : "",
718 (state & I810_UPLOAD_CTX) ? "upload-ctx, " : "",
719 (state & I810_UPLOAD_BUFFERS) ? "upload-bufs, " : ""
720 );
721 }
722
723
724
725 void i810InitState( GLcontext *ctx )
726 {
727 i810ContextPtr imesa = I810_CONTEXT(ctx);
728 i810ScreenPrivate *i810Screen = imesa->i810Screen;
729
730 memset(imesa->Setup, 0, sizeof(imesa->Setup));
731
732 imesa->Setup[I810_CTXREG_VF] = 0;
733
734 imesa->Setup[I810_CTXREG_MT] = (GFX_OP_MAP_TEXELS |
735 MT_UPDATE_TEXEL1_STATE |
736 MT_TEXEL1_COORD1 |
737 MT_TEXEL1_MAP1 |
738 MT_TEXEL1_DISABLE |
739 MT_UPDATE_TEXEL0_STATE |
740 MT_TEXEL0_COORD0 |
741 MT_TEXEL0_MAP0 |
742 MT_TEXEL0_DISABLE);
743
744 imesa->Setup[I810_CTXREG_MC0] = ( GFX_OP_MAP_COLOR_STAGES |
745 MC_STAGE_0 |
746 MC_UPDATE_DEST |
747 MC_DEST_CURRENT |
748 MC_UPDATE_ARG1 |
749 ((MC_ARG_ITERATED_COLOR |
750 MC_ARG_DONT_REPLICATE_ALPHA |
751 MC_ARG_DONT_INVERT) << MC_ARG1_SHIFT) |
752 MC_UPDATE_ARG2 |
753 ((MC_ARG_ONE |
754 MC_ARG_DONT_REPLICATE_ALPHA |
755 MC_ARG_DONT_INVERT) << MC_ARG2_SHIFT) |
756 MC_UPDATE_OP |
757 MC_OP_ARG1 );
758
759 imesa->Setup[I810_CTXREG_MC1] = ( GFX_OP_MAP_COLOR_STAGES |
760 MC_STAGE_1 |
761 MC_UPDATE_DEST |
762 MC_DEST_CURRENT |
763 MC_UPDATE_ARG1 |
764 ((MC_ARG_ONE |
765 MC_ARG_DONT_REPLICATE_ALPHA |
766 MC_ARG_DONT_INVERT) << MC_ARG1_SHIFT) |
767 MC_UPDATE_ARG2 |
768 ((MC_ARG_ONE |
769 MC_ARG_DONT_REPLICATE_ALPHA |
770 MC_ARG_DONT_INVERT) << MC_ARG2_SHIFT) |
771 MC_UPDATE_OP |
772 MC_OP_DISABLE );
773
774
775 imesa->Setup[I810_CTXREG_MC2] = ( GFX_OP_MAP_COLOR_STAGES |
776 MC_STAGE_2 |
777 MC_UPDATE_DEST |
778 MC_DEST_CURRENT |
779 MC_UPDATE_ARG1 |
780 ((MC_ARG_CURRENT_COLOR |
781 MC_ARG_REPLICATE_ALPHA |
782 MC_ARG_DONT_INVERT) << MC_ARG1_SHIFT) |
783 MC_UPDATE_ARG2 |
784 ((MC_ARG_ONE |
785 MC_ARG_DONT_REPLICATE_ALPHA |
786 MC_ARG_DONT_INVERT) << MC_ARG2_SHIFT) |
787 MC_UPDATE_OP |
788 MC_OP_DISABLE );
789
790
791 imesa->Setup[I810_CTXREG_MA0] = ( GFX_OP_MAP_ALPHA_STAGES |
792 MA_STAGE_0 |
793 MA_UPDATE_ARG1 |
794 ((MA_ARG_ITERATED_ALPHA |
795 MA_ARG_DONT_INVERT) << MA_ARG1_SHIFT) |
796 MA_UPDATE_ARG2 |
797 ((MA_ARG_CURRENT_ALPHA |
798 MA_ARG_DONT_INVERT) << MA_ARG2_SHIFT) |
799 MA_UPDATE_OP |
800 MA_OP_ARG1 );
801
802
803 imesa->Setup[I810_CTXREG_MA1] = ( GFX_OP_MAP_ALPHA_STAGES |
804 MA_STAGE_1 |
805 MA_UPDATE_ARG1 |
806 ((MA_ARG_CURRENT_ALPHA |
807 MA_ARG_DONT_INVERT) << MA_ARG1_SHIFT) |
808 MA_UPDATE_ARG2 |
809 ((MA_ARG_CURRENT_ALPHA |
810 MA_ARG_DONT_INVERT) << MA_ARG2_SHIFT) |
811 MA_UPDATE_OP |
812 MA_OP_ARG1 );
813
814
815 imesa->Setup[I810_CTXREG_MA2] = ( GFX_OP_MAP_ALPHA_STAGES |
816 MA_STAGE_2 |
817 MA_UPDATE_ARG1 |
818 ((MA_ARG_CURRENT_ALPHA |
819 MA_ARG_DONT_INVERT) << MA_ARG1_SHIFT) |
820 MA_UPDATE_ARG2 |
821 ((MA_ARG_CURRENT_ALPHA |
822 MA_ARG_DONT_INVERT) << MA_ARG2_SHIFT) |
823 MA_UPDATE_OP |
824 MA_OP_ARG1 );
825
826
827 imesa->Setup[I810_CTXREG_SDM] = ( GFX_OP_SRC_DEST_MONO |
828 SDM_UPDATE_MONO_ENABLE |
829 0 |
830 SDM_UPDATE_SRC_BLEND |
831 SDM_SRC_ONE |
832 SDM_UPDATE_DST_BLEND |
833 SDM_DST_ZERO );
834
835 /* Use for colormask:
836 */
837 imesa->Setup[I810_CTXREG_CF0] = GFX_OP_COLOR_FACTOR;
838 imesa->Setup[I810_CTXREG_CF1] = 0xffffffff;
839
840 imesa->Setup[I810_CTXREG_ZA] = (GFX_OP_ZBIAS_ALPHAFUNC |
841 ZA_UPDATE_ALPHAFUNC |
842 ZA_ALPHA_ALWAYS |
843 ZA_UPDATE_ZBIAS |
844 0 |
845 ZA_UPDATE_ALPHAREF |
846 0x0);
847
848 imesa->Setup[I810_CTXREG_FOG] = (GFX_OP_FOG_COLOR |
849 (0xffffff & ~FOG_RESERVED_MASK));
850
851 /* Choose a pipe
852 */
853 imesa->Setup[I810_CTXREG_B1] = ( GFX_OP_BOOL_1 |
854 B1_UPDATE_SPEC_SETUP_ENABLE |
855 0 |
856 B1_UPDATE_ALPHA_SETUP_ENABLE |
857 B1_ALPHA_SETUP_ENABLE |
858 B1_UPDATE_CI_KEY_ENABLE |
859 0 |
860 B1_UPDATE_CHROMAKEY_ENABLE |
861 0 |
862 B1_UPDATE_Z_BIAS_ENABLE |
863 0 |
864 B1_UPDATE_SPEC_ENABLE |
865 0 |
866 B1_UPDATE_FOG_ENABLE |
867 0 |
868 B1_UPDATE_ALPHA_TEST_ENABLE |
869 0 |
870 B1_UPDATE_BLEND_ENABLE |
871 0 |
872 B1_UPDATE_Z_TEST_ENABLE |
873 0 );
874
875 imesa->Setup[I810_CTXREG_B2] = ( GFX_OP_BOOL_2 |
876 B2_UPDATE_MAP_CACHE_ENABLE |
877 B2_MAP_CACHE_ENABLE |
878 B2_UPDATE_ALPHA_DITHER_ENABLE |
879 0 |
880 B2_UPDATE_FOG_DITHER_ENABLE |
881 0 |
882 B2_UPDATE_SPEC_DITHER_ENABLE |
883 0 |
884 B2_UPDATE_RGB_DITHER_ENABLE |
885 B2_RGB_DITHER_ENABLE |
886 B2_UPDATE_FB_WRITE_ENABLE |
887 B2_FB_WRITE_ENABLE |
888 B2_UPDATE_ZB_WRITE_ENABLE |
889 B2_ZB_WRITE_ENABLE );
890
891 imesa->Setup[I810_CTXREG_LCS] = ( GFX_OP_LINEWIDTH_CULL_SHADE_MODE |
892 LCS_UPDATE_ZMODE |
893 LCS_Z_LESS |
894 LCS_UPDATE_LINEWIDTH |
895 LCS_LINEWIDTH_1_0 |
896 LCS_UPDATE_ALPHA_INTERP |
897 LCS_ALPHA_INTERP |
898 LCS_UPDATE_FOG_INTERP |
899 0 |
900 LCS_UPDATE_SPEC_INTERP |
901 0 |
902 LCS_UPDATE_RGB_INTERP |
903 LCS_RGB_INTERP |
904 LCS_UPDATE_CULL_MODE |
905 LCS_CULL_DISABLE);
906
907 imesa->LcsCullMode = LCS_CULL_CW;
908 imesa->LcsLineWidth = LCS_LINEWIDTH_1_0;
909 imesa->LcsPointSize = LCS_LINEWIDTH_1_0;
910
911 imesa->Setup[I810_CTXREG_PV] = ( GFX_OP_PV_RULE |
912 PV_UPDATE_PIXRULE |
913 PV_PIXRULE_ENABLE |
914 PV_UPDATE_LINELIST |
915 PV_LINELIST_PV1 |
916 PV_UPDATE_TRIFAN |
917 PV_TRIFAN_PV2 |
918 PV_UPDATE_TRISTRIP |
919 PV_TRISTRIP_PV2 );
920
921
922 imesa->Setup[I810_CTXREG_ST0] = GFX_OP_STIPPLE;
923 imesa->Setup[I810_CTXREG_ST1] = 0;
924
925 imesa->Setup[I810_CTXREG_AA] = ( GFX_OP_ANTIALIAS |
926 AA_UPDATE_EDGEFLAG |
927 0 |
928 AA_UPDATE_POLYWIDTH |
929 AA_POLYWIDTH_05 |
930 AA_UPDATE_LINEWIDTH |
931 AA_LINEWIDTH_05 |
932 AA_UPDATE_BB_EXPANSION |
933 0 |
934 AA_UPDATE_AA_ENABLE |
935 0 );
936
937 memset(imesa->BufferSetup, 0, sizeof(imesa->BufferSetup));
938 imesa->BufferSetup[I810_DESTREG_DI0] = CMD_OP_DESTBUFFER_INFO;
939
940 if (imesa->glCtx->Visual.doubleBufferMode && imesa->sarea->pf_current_page == 0) {
941 /* use back buffer by default */
942 imesa->BufferSetup[I810_DESTREG_DI1] = (i810Screen->backOffset |
943 i810Screen->backPitchBits);
944 } else {
945 /* use front buffer by default */
946 imesa->BufferSetup[I810_DESTREG_DI1] = (i810Screen->fbOffset |
947 i810Screen->backPitchBits);
948 }
949
950 imesa->BufferSetup[I810_DESTREG_DV0] = GFX_OP_DESTBUFFER_VARS;
951 imesa->BufferSetup[I810_DESTREG_DV1] = (DV_HORG_BIAS_OGL |
952 DV_VORG_BIAS_OGL |
953 i810Screen->fbFormat);
954
955 imesa->BufferSetup[I810_DESTREG_DR0] = GFX_OP_DRAWRECT_INFO;
956 imesa->BufferSetup[I810_DESTREG_DR1] = DR1_RECT_CLIP_ENABLE;
957 }
958
959
960 static void i810InvalidateState( GLcontext *ctx, GLuint new_state )
961 {
962 _swrast_InvalidateState( ctx, new_state );
963 _swsetup_InvalidateState( ctx, new_state );
964 _vbo_InvalidateState( ctx, new_state );
965 _tnl_InvalidateState( ctx, new_state );
966 I810_CONTEXT(ctx)->new_state |= new_state;
967 }
968
969
970 void i810InitStateFuncs(GLcontext *ctx)
971 {
972 /* Callbacks for internal Mesa events.
973 */
974 ctx->Driver.UpdateState = i810InvalidateState;
975
976 /* API callbacks
977 */
978 ctx->Driver.AlphaFunc = i810AlphaFunc;
979 ctx->Driver.BlendEquationSeparate = i810BlendEquationSeparate;
980 ctx->Driver.BlendFuncSeparate = i810BlendFuncSeparate;
981 ctx->Driver.ClearColor = i810ClearColor;
982 ctx->Driver.ColorMask = i810ColorMask;
983 ctx->Driver.CullFace = i810CullFaceFrontFace;
984 ctx->Driver.DepthFunc = i810DepthFunc;
985 ctx->Driver.DepthMask = i810DepthMask;
986 ctx->Driver.Enable = i810Enable;
987 ctx->Driver.Fogfv = i810Fogfv;
988 ctx->Driver.FrontFace = i810CullFaceFrontFace;
989 ctx->Driver.LineWidth = i810LineWidth;
990 ctx->Driver.LogicOpcode = i810LogicOp;
991 ctx->Driver.PolygonStipple = i810PolygonStipple;
992 ctx->Driver.RenderMode = i810RenderMode;
993 ctx->Driver.Scissor = i810Scissor;
994 ctx->Driver.DrawBuffer = i810DrawBuffer;
995 ctx->Driver.ReadBuffer = i810ReadBuffer;
996 ctx->Driver.ShadeModel = i810ShadeModel;
997 ctx->Driver.DepthRange = i810DepthRange;
998 ctx->Driver.Viewport = i810Viewport;
999 ctx->Driver.PointSize = i810PointSize;
1000
1001 if (IS_I815(I810_CONTEXT(ctx))) {
1002 ctx->Driver.LightModelfv = i810LightModelfv_i815;
1003 } else {
1004 ctx->Driver.LightModelfv = i810LightModelfv;
1005 }
1006 }