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Merge commit 'origin/gallium-0.1' into gallium-0.2
[mesa.git] / src / mesa / drivers / dri / i810 / i810state.c
1
2 #include <stdio.h>
3
4 #include "glheader.h"
5 #include "context.h"
6 #include "macros.h"
7 #include "dd.h"
8 #include "colormac.h"
9
10 #include "texmem.h"
11
12 #include "i810screen.h"
13 #include "i810_dri.h"
14
15 #include "i810context.h"
16 #include "i810state.h"
17 #include "i810tex.h"
18 #include "i810vb.h"
19 #include "i810tris.h"
20 #include "i810ioctl.h"
21
22 #include "swrast/swrast.h"
23 #include "tnl/tnl.h"
24 #include "vbo/vbo.h"
25 #include "swrast_setup/swrast_setup.h"
26
27 #include "tnl/t_pipeline.h"
28
29 static INLINE GLuint i810PackColor(GLuint format,
30 GLubyte r, GLubyte g,
31 GLubyte b, GLubyte a)
32 {
33
34 if (I810_DEBUG&DEBUG_DRI)
35 fprintf(stderr, "%s\n", __FUNCTION__);
36
37 switch (format) {
38 case DV_PF_555:
39 return PACK_COLOR_1555( a, r, g, b );
40 case DV_PF_565:
41 return PACK_COLOR_565( r, g, b );
42 default:
43 fprintf(stderr, "unknown format %d\n", (int)format);
44 return 0;
45 }
46 }
47
48
49 static void i810AlphaFunc(GLcontext *ctx, GLenum func, GLfloat ref)
50 {
51 i810ContextPtr imesa = I810_CONTEXT(ctx);
52 GLuint a = (ZA_UPDATE_ALPHAFUNC|ZA_UPDATE_ALPHAREF);
53 GLubyte refByte;
54
55 CLAMPED_FLOAT_TO_UBYTE(refByte, ref);
56
57 switch (ctx->Color.AlphaFunc) {
58 case GL_NEVER: a |= ZA_ALPHA_NEVER; break;
59 case GL_LESS: a |= ZA_ALPHA_LESS; break;
60 case GL_GEQUAL: a |= ZA_ALPHA_GEQUAL; break;
61 case GL_LEQUAL: a |= ZA_ALPHA_LEQUAL; break;
62 case GL_GREATER: a |= ZA_ALPHA_GREATER; break;
63 case GL_NOTEQUAL: a |= ZA_ALPHA_NOTEQUAL; break;
64 case GL_EQUAL: a |= ZA_ALPHA_EQUAL; break;
65 case GL_ALWAYS: a |= ZA_ALPHA_ALWAYS; break;
66 default: return;
67 }
68
69 a |= ((refByte & 0xfc) << ZA_ALPHAREF_SHIFT);
70
71 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
72 imesa->Setup[I810_CTXREG_ZA] &= ~(ZA_ALPHA_MASK|ZA_ALPHAREF_MASK);
73 imesa->Setup[I810_CTXREG_ZA] |= a;
74 }
75
76 static void i810BlendEquationSeparate(GLcontext *ctx,
77 GLenum modeRGB, GLenum modeA)
78 {
79 assert( modeRGB == modeA );
80
81 /* Can only do GL_ADD equation in hardware */
82 FALLBACK( I810_CONTEXT(ctx), I810_FALLBACK_BLEND_EQ,
83 modeRGB != GL_FUNC_ADD);
84
85 /* BlendEquation sets ColorLogicOpEnabled in an unexpected
86 * manner.
87 */
88 FALLBACK( I810_CONTEXT(ctx), I810_FALLBACK_LOGICOP,
89 (ctx->Color.ColorLogicOpEnabled &&
90 ctx->Color.LogicOp != GL_COPY));
91 }
92
93 static void i810BlendFuncSeparate( GLcontext *ctx, GLenum sfactorRGB,
94 GLenum dfactorRGB, GLenum sfactorA,
95 GLenum dfactorA )
96 {
97 i810ContextPtr imesa = I810_CONTEXT(ctx);
98 GLuint a = SDM_UPDATE_SRC_BLEND | SDM_UPDATE_DST_BLEND;
99 GLboolean fallback = GL_FALSE;
100
101 switch (ctx->Color.BlendSrcRGB) {
102 case GL_ZERO: a |= SDM_SRC_ZERO; break;
103 case GL_ONE: a |= SDM_SRC_ONE; break;
104 case GL_SRC_COLOR: a |= SDM_SRC_SRC_COLOR; break;
105 case GL_ONE_MINUS_SRC_COLOR: a |= SDM_SRC_INV_SRC_COLOR; break;
106 case GL_SRC_ALPHA: a |= SDM_SRC_SRC_ALPHA; break;
107 case GL_ONE_MINUS_SRC_ALPHA: a |= SDM_SRC_INV_SRC_ALPHA; break;
108 case GL_DST_ALPHA: a |= SDM_SRC_ONE; break;
109 case GL_ONE_MINUS_DST_ALPHA: a |= SDM_SRC_ZERO; break;
110 case GL_DST_COLOR: a |= SDM_SRC_DST_COLOR; break;
111 case GL_ONE_MINUS_DST_COLOR: a |= SDM_SRC_INV_DST_COLOR; break;
112
113 /* (f, f, f, 1), f = min(As, 1 - Ad) = min(As, 1 - 1) = 0
114 * So (f, f, f, 1) = (0, 0, 0, 1). Since there is no destination alpha and
115 * the only supported alpha operation is GL_FUNC_ADD, the result modulating
116 * the source alpha with the alpha factor is largely irrelevant.
117 */
118 case GL_SRC_ALPHA_SATURATE: a |= SDM_SRC_ZERO; break;
119
120 case GL_CONSTANT_COLOR:
121 case GL_ONE_MINUS_CONSTANT_COLOR:
122 case GL_CONSTANT_ALPHA:
123 case GL_ONE_MINUS_CONSTANT_ALPHA:
124 fallback = GL_TRUE;
125 break;
126 default:
127 return;
128 }
129
130 switch (ctx->Color.BlendDstRGB) {
131 case GL_ZERO: a |= SDM_DST_ZERO; break;
132 case GL_ONE: a |= SDM_DST_ONE; break;
133 case GL_SRC_COLOR: a |= SDM_DST_SRC_COLOR; break;
134 case GL_ONE_MINUS_SRC_COLOR: a |= SDM_DST_INV_SRC_COLOR; break;
135 case GL_SRC_ALPHA: a |= SDM_DST_SRC_ALPHA; break;
136 case GL_ONE_MINUS_SRC_ALPHA: a |= SDM_DST_INV_SRC_ALPHA; break;
137 case GL_DST_ALPHA: a |= SDM_DST_ONE; break;
138 case GL_ONE_MINUS_DST_ALPHA: a |= SDM_DST_ZERO; break;
139 case GL_DST_COLOR: a |= SDM_DST_DST_COLOR; break;
140 case GL_ONE_MINUS_DST_COLOR: a |= SDM_DST_INV_DST_COLOR; break;
141
142 case GL_CONSTANT_COLOR:
143 case GL_ONE_MINUS_CONSTANT_COLOR:
144 case GL_CONSTANT_ALPHA:
145 case GL_ONE_MINUS_CONSTANT_ALPHA:
146 fallback = GL_TRUE;
147 break;
148 default:
149 return;
150 }
151
152 FALLBACK( imesa, I810_FALLBACK_BLEND_FUNC, fallback);
153 if (!fallback) {
154 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
155 imesa->Setup[I810_CTXREG_SDM] &= ~(SDM_SRC_MASK|SDM_DST_MASK);
156 imesa->Setup[I810_CTXREG_SDM] |= a;
157 }
158 }
159
160
161
162 static void i810DepthFunc(GLcontext *ctx, GLenum func)
163 {
164 i810ContextPtr imesa = I810_CONTEXT(ctx);
165 int zmode;
166
167 switch(func) {
168 case GL_NEVER: zmode = LCS_Z_NEVER; break;
169 case GL_ALWAYS: zmode = LCS_Z_ALWAYS; break;
170 case GL_LESS: zmode = LCS_Z_LESS; break;
171 case GL_LEQUAL: zmode = LCS_Z_LEQUAL; break;
172 case GL_EQUAL: zmode = LCS_Z_EQUAL; break;
173 case GL_GREATER: zmode = LCS_Z_GREATER; break;
174 case GL_GEQUAL: zmode = LCS_Z_GEQUAL; break;
175 case GL_NOTEQUAL: zmode = LCS_Z_NOTEQUAL; break;
176 default: return;
177 }
178
179 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
180 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_Z_MASK;
181 imesa->Setup[I810_CTXREG_LCS] |= zmode;
182 }
183
184 static void i810DepthMask(GLcontext *ctx, GLboolean flag)
185 {
186 i810ContextPtr imesa = I810_CONTEXT(ctx);
187 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
188
189 if (flag)
190 imesa->Setup[I810_CTXREG_B2] |= B2_ZB_WRITE_ENABLE;
191 else
192 imesa->Setup[I810_CTXREG_B2] &= ~B2_ZB_WRITE_ENABLE;
193 }
194
195
196 /* =============================================================
197 * Polygon stipple
198 *
199 * The i810 supports a 4x4 stipple natively, GL wants 32x32.
200 * Fortunately stipple is usually a repeating pattern.
201 */
202 static void i810PolygonStipple( GLcontext *ctx, const GLubyte *mask )
203 {
204 i810ContextPtr imesa = I810_CONTEXT(ctx);
205 const GLubyte *m = mask;
206 GLubyte p[4];
207 int i,j,k;
208 int active = (ctx->Polygon.StippleFlag &&
209 imesa->reduced_primitive == GL_TRIANGLES);
210 GLuint newMask;
211
212 if (active) {
213 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
214 imesa->Setup[I810_CTXREG_ST1] &= ~ST1_ENABLE;
215 }
216
217 p[0] = mask[12] & 0xf; p[0] |= p[0] << 4;
218 p[1] = mask[8] & 0xf; p[1] |= p[1] << 4;
219 p[2] = mask[4] & 0xf; p[2] |= p[2] << 4;
220 p[3] = mask[0] & 0xf; p[3] |= p[3] << 4;
221
222 for (k = 0 ; k < 8 ; k++)
223 for (j = 0 ; j < 4; j++)
224 for (i = 0 ; i < 4 ; i++)
225 if (*m++ != p[j]) {
226 imesa->stipple_in_hw = 0;
227 return;
228 }
229
230 newMask = ((p[0] & 0xf) << 0) |
231 ((p[1] & 0xf) << 4) |
232 ((p[2] & 0xf) << 8) |
233 ((p[3] & 0xf) << 12);
234
235 if (newMask == 0xffff) {
236 /* this is needed to make conform pass */
237 imesa->stipple_in_hw = 0;
238 return;
239 }
240
241 imesa->Setup[I810_CTXREG_ST1] &= ~0xffff;
242 imesa->Setup[I810_CTXREG_ST1] |= newMask;
243 imesa->stipple_in_hw = 1;
244
245 if (active)
246 imesa->Setup[I810_CTXREG_ST1] |= ST1_ENABLE;
247 }
248
249
250
251 /* =============================================================
252 * Hardware clipping
253 */
254
255
256 static void i810Scissor( GLcontext *ctx, GLint x, GLint y,
257 GLsizei w, GLsizei h )
258 {
259 i810ContextPtr imesa = I810_CONTEXT(ctx);
260
261 if (ctx->Scissor.Enabled) {
262 I810_FIREVERTICES(imesa); /* don't pipeline cliprect changes */
263 imesa->upload_cliprects = GL_TRUE;
264 }
265
266 imesa->scissor_rect.x1 = x;
267 imesa->scissor_rect.y1 = imesa->driDrawable->h - (y + h);
268 imesa->scissor_rect.x2 = x + w;
269 imesa->scissor_rect.y2 = imesa->driDrawable->h - y;
270 }
271
272
273 static void i810LogicOp( GLcontext *ctx, GLenum opcode )
274 {
275 i810ContextPtr imesa = I810_CONTEXT(ctx);
276 FALLBACK( imesa, I810_FALLBACK_LOGICOP,
277 (ctx->Color.ColorLogicOpEnabled && opcode != GL_COPY) );
278 }
279
280 /* Fallback to swrast for select and feedback.
281 */
282 static void i810RenderMode( GLcontext *ctx, GLenum mode )
283 {
284 i810ContextPtr imesa = I810_CONTEXT(ctx);
285 FALLBACK( imesa, I810_FALLBACK_RENDERMODE, (mode != GL_RENDER) );
286 }
287
288
289 void i810DrawBuffer(GLcontext *ctx, GLenum mode )
290 {
291 i810ContextPtr imesa = I810_CONTEXT(ctx);
292 int front = 0;
293
294 if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
295 /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
296 FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_TRUE );
297 return;
298 }
299
300 switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0]) {
301 case BUFFER_FRONT_LEFT:
302 front = 1;
303 break;
304 case BUFFER_BACK_LEFT:
305 front = 0;
306 break;
307 default:
308 FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_TRUE );
309 return;
310 }
311
312 if ( imesa->sarea->pf_current_page == 1 )
313 front ^= 1;
314
315 FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_FALSE );
316 I810_FIREVERTICES(imesa);
317 I810_STATECHANGE(imesa, I810_UPLOAD_BUFFERS);
318
319 if (front)
320 {
321 imesa->BufferSetup[I810_DESTREG_DI1] = (imesa->i810Screen->fbOffset |
322 imesa->i810Screen->backPitchBits);
323 i810XMesaSetFrontClipRects( imesa );
324 }
325 else
326 {
327 imesa->BufferSetup[I810_DESTREG_DI1] = (imesa->i810Screen->backOffset |
328 imesa->i810Screen->backPitchBits);
329 i810XMesaSetBackClipRects( imesa );
330 }
331 }
332
333
334 static void i810ReadBuffer(GLcontext *ctx, GLenum mode )
335 {
336 /* XXX anything? */
337 }
338
339
340 static void i810ClearColor(GLcontext *ctx, const GLfloat color[4] )
341 {
342 i810ContextPtr imesa = I810_CONTEXT(ctx);
343 GLubyte c[4];
344 CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
345 CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
346 CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
347 CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
348 imesa->ClearColor = i810PackColor( imesa->i810Screen->fbFormat,
349 c[0], c[1], c[2], c[3] );
350 }
351
352
353 /* =============================================================
354 * Culling - the i810 isn't quite as clean here as the rest of
355 * its interfaces, but it's not bad.
356 */
357 static void i810CullFaceFrontFace(GLcontext *ctx, GLenum unused)
358 {
359 i810ContextPtr imesa = I810_CONTEXT(ctx);
360 GLuint mode = LCS_CULL_BOTH;
361
362 if (ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) {
363 mode = LCS_CULL_CW;
364 if (ctx->Polygon.CullFaceMode == GL_FRONT)
365 mode ^= (LCS_CULL_CW ^ LCS_CULL_CCW);
366 if (ctx->Polygon.FrontFace != GL_CCW)
367 mode ^= (LCS_CULL_CW ^ LCS_CULL_CCW);
368 }
369
370 imesa->LcsCullMode = mode;
371
372 if (ctx->Polygon.CullFlag)
373 {
374 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
375 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_CULL_MASK;
376 imesa->Setup[I810_CTXREG_LCS] |= mode;
377 }
378 }
379
380
381 static void i810LineWidth( GLcontext *ctx, GLfloat widthf )
382 {
383 i810ContextPtr imesa = I810_CONTEXT( ctx );
384 /* AA, non-AA limits are same */
385 const int width = (int) CLAMP(ctx->Line.Width,
386 ctx->Const.MinLineWidth,
387 ctx->Const.MaxLineWidth);
388
389 imesa->LcsLineWidth = 0;
390 if (width & 1) imesa->LcsLineWidth |= LCS_LINEWIDTH_1_0;
391 if (width & 2) imesa->LcsLineWidth |= LCS_LINEWIDTH_2_0;
392
393 if (imesa->reduced_primitive == GL_LINES) {
394 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
395 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_3_0;
396 imesa->Setup[I810_CTXREG_LCS] |= imesa->LcsLineWidth;
397 }
398 }
399
400 static void i810PointSize( GLcontext *ctx, GLfloat sz )
401 {
402 i810ContextPtr imesa = I810_CONTEXT( ctx );
403 /* AA, non-AA limits are same */
404 const int size = (int) CLAMP(ctx->Point.Size,
405 ctx->Const.MinPointSize,
406 ctx->Const.MaxPointSize);
407
408 imesa->LcsPointSize = 0;
409 if (size & 1) imesa->LcsPointSize |= LCS_LINEWIDTH_1_0;
410 if (size & 2) imesa->LcsPointSize |= LCS_LINEWIDTH_2_0;
411
412 if (imesa->reduced_primitive == GL_POINTS) {
413 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
414 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_3_0;
415 imesa->Setup[I810_CTXREG_LCS] |= imesa->LcsPointSize;
416 }
417 }
418
419 /* =============================================================
420 * Color masks
421 */
422
423 static void i810ColorMask(GLcontext *ctx,
424 GLboolean r, GLboolean g,
425 GLboolean b, GLboolean a )
426 {
427 i810ContextPtr imesa = I810_CONTEXT( ctx );
428 GLuint tmp = 0;
429
430 if (r && g && b) {
431 tmp = imesa->Setup[I810_CTXREG_B2] | B2_FB_WRITE_ENABLE;
432 FALLBACK( imesa, I810_FALLBACK_COLORMASK, GL_FALSE );
433 } else if (!r && !g && !b) {
434 tmp = imesa->Setup[I810_CTXREG_B2] & ~B2_FB_WRITE_ENABLE;
435 FALLBACK( imesa, I810_FALLBACK_COLORMASK, GL_FALSE );
436 } else {
437 FALLBACK( imesa, I810_FALLBACK_COLORMASK, GL_TRUE );
438 return;
439 }
440
441 if (tmp != imesa->Setup[I810_CTXREG_B2]) {
442 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
443 imesa->Setup[I810_CTXREG_B2] = tmp;
444 imesa->dirty |= I810_UPLOAD_CTX;
445 }
446 }
447
448 /* Seperate specular not fully implemented on the i810.
449 */
450 static void i810LightModelfv(GLcontext *ctx, GLenum pname,
451 const GLfloat *param)
452 {
453 if (pname == GL_LIGHT_MODEL_COLOR_CONTROL)
454 {
455 i810ContextPtr imesa = I810_CONTEXT( ctx );
456 FALLBACK( imesa, I810_FALLBACK_SPECULAR,
457 (ctx->Light.Enabled &&
458 ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR));
459 }
460 }
461
462 /* But the 815 has it...
463 */
464 static void i810LightModelfv_i815(GLcontext *ctx, GLenum pname,
465 const GLfloat *param)
466 {
467 if (pname == GL_LIGHT_MODEL_COLOR_CONTROL)
468 {
469 i810ContextPtr imesa = I810_CONTEXT( ctx );
470
471 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
472 if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
473 imesa->Setup[I810_CTXREG_B1] |= B1_SPEC_ENABLE;
474 else
475 imesa->Setup[I810_CTXREG_B1] &= ~B1_SPEC_ENABLE;
476 }
477 }
478
479 /* In Mesa 3.5 we can reliably do native flatshading.
480 */
481 static void i810ShadeModel(GLcontext *ctx, GLenum mode)
482 {
483 i810ContextPtr imesa = I810_CONTEXT(ctx);
484 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
485 if (mode == GL_FLAT)
486 imesa->Setup[I810_CTXREG_LCS] |= LCS_INTERP_FLAT;
487 else
488 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_INTERP_FLAT;
489 }
490
491
492
493 /* =============================================================
494 * Fog
495 */
496 static void i810Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *param)
497 {
498 i810ContextPtr imesa = I810_CONTEXT(ctx);
499
500 if (pname == GL_FOG_COLOR) {
501 GLuint color = (((GLubyte)(ctx->Fog.Color[0]*255.0F) << 16) |
502 ((GLubyte)(ctx->Fog.Color[1]*255.0F) << 8) |
503 ((GLubyte)(ctx->Fog.Color[2]*255.0F) << 0));
504
505 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
506 imesa->Setup[I810_CTXREG_FOG] = ((GFX_OP_FOG_COLOR | color) &
507 ~FOG_RESERVED_MASK);
508 }
509 }
510
511
512 /* =============================================================
513 */
514 static void i810Enable(GLcontext *ctx, GLenum cap, GLboolean state)
515 {
516 i810ContextPtr imesa = I810_CONTEXT(ctx);
517
518 switch(cap) {
519 case GL_ALPHA_TEST:
520 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
521 imesa->Setup[I810_CTXREG_B1] &= ~B1_ALPHA_TEST_ENABLE;
522 if (state)
523 imesa->Setup[I810_CTXREG_B1] |= B1_ALPHA_TEST_ENABLE;
524 break;
525 case GL_BLEND:
526 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
527 imesa->Setup[I810_CTXREG_B1] &= ~B1_BLEND_ENABLE;
528 if (state)
529 imesa->Setup[I810_CTXREG_B1] |= B1_BLEND_ENABLE;
530
531 /* For some reason enable(GL_BLEND) affects ColorLogicOpEnabled.
532 */
533 FALLBACK( imesa, I810_FALLBACK_LOGICOP,
534 (ctx->Color.ColorLogicOpEnabled &&
535 ctx->Color.LogicOp != GL_COPY));
536 break;
537 case GL_DEPTH_TEST:
538 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
539 imesa->Setup[I810_CTXREG_B1] &= ~B1_Z_TEST_ENABLE;
540 if (state)
541 imesa->Setup[I810_CTXREG_B1] |= B1_Z_TEST_ENABLE;
542 break;
543 case GL_SCISSOR_TEST:
544 /* XXX without these next two lines, conform's scissor test fails */
545 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
546 I810_STATECHANGE(imesa, I810_UPLOAD_BUFFERS);
547 I810_FIREVERTICES(imesa); /* don't pipeline cliprect changes */
548 imesa->upload_cliprects = GL_TRUE;
549 imesa->scissor = state;
550 break;
551 case GL_POLYGON_STIPPLE:
552 if (imesa->stipple_in_hw && imesa->reduced_primitive == GL_TRIANGLES)
553 {
554 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
555 imesa->Setup[I810_CTXREG_ST1] &= ~ST1_ENABLE;
556 if (state)
557 imesa->Setup[I810_CTXREG_ST1] |= ST1_ENABLE;
558 }
559 break;
560 case GL_LINE_SMOOTH:
561 /* Need to fatten the lines by .5, or they disappear...
562 */
563 if (imesa->reduced_primitive == GL_LINES) {
564 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
565 imesa->Setup[I810_CTXREG_AA] &= ~AA_ENABLE;
566 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_0_5;
567 if (state) {
568 imesa->Setup[I810_CTXREG_AA] |= AA_ENABLE;
569 imesa->Setup[I810_CTXREG_LCS] |= LCS_LINEWIDTH_0_5;
570 }
571 }
572 break;
573 case GL_POINT_SMOOTH:
574 if (imesa->reduced_primitive == GL_POINTS) {
575 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
576 imesa->Setup[I810_CTXREG_AA] &= ~AA_ENABLE;
577 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_LINEWIDTH_0_5;
578 if (state) {
579 imesa->Setup[I810_CTXREG_AA] |= AA_ENABLE;
580 imesa->Setup[I810_CTXREG_LCS] |= LCS_LINEWIDTH_0_5;
581 }
582 }
583 break;
584 case GL_POLYGON_SMOOTH:
585 if (imesa->reduced_primitive == GL_TRIANGLES) {
586 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
587 imesa->Setup[I810_CTXREG_AA] &= ~AA_ENABLE;
588 if (state)
589 imesa->Setup[I810_CTXREG_AA] |= AA_ENABLE;
590 }
591 break;
592 case GL_FOG:
593 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
594 imesa->Setup[I810_CTXREG_B1] &= ~B1_FOG_ENABLE;
595 if (state)
596 imesa->Setup[I810_CTXREG_B1] |= B1_FOG_ENABLE;
597 break;
598 case GL_CULL_FACE:
599 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
600 imesa->Setup[I810_CTXREG_LCS] &= ~LCS_CULL_MASK;
601 if (state)
602 imesa->Setup[I810_CTXREG_LCS] |= imesa->LcsCullMode;
603 else
604 imesa->Setup[I810_CTXREG_LCS] |= LCS_CULL_DISABLE;
605 break;
606 case GL_TEXTURE_2D:
607 case GL_TEXTURE_RECTANGLE_NV:
608 I810_STATECHANGE(imesa, I810_UPLOAD_CTX);
609 if (ctx->Texture.CurrentUnit == 0) {
610 imesa->Setup[I810_CTXREG_MT] &= ~MT_TEXEL0_ENABLE;
611 if (state)
612 imesa->Setup[I810_CTXREG_MT] |= MT_TEXEL0_ENABLE;
613 } else {
614 imesa->Setup[I810_CTXREG_MT] &= ~MT_TEXEL1_ENABLE;
615 if (state)
616 imesa->Setup[I810_CTXREG_MT] |= MT_TEXEL1_ENABLE;
617 }
618 break;
619 case GL_COLOR_LOGIC_OP:
620 FALLBACK( imesa, I810_FALLBACK_LOGICOP,
621 (state && ctx->Color.LogicOp != GL_COPY));
622 break;
623 case GL_STENCIL_TEST:
624 FALLBACK( imesa, I810_FALLBACK_STENCIL, state );
625 break;
626 default:
627 ;
628 }
629 }
630
631
632
633
634
635
636
637 /* =============================================================
638 */
639
640
641
642
643 void i810EmitDrawingRectangle( i810ContextPtr imesa )
644 {
645 __DRIdrawablePrivate *dPriv = imesa->driDrawable;
646 i810ScreenPrivate *i810Screen = imesa->i810Screen;
647 int x0 = imesa->drawX;
648 int y0 = imesa->drawY;
649 int x1 = x0 + dPriv->w;
650 int y1 = y0 + dPriv->h;
651 GLuint dr2, dr3, dr4;
652
653
654 /* Coordinate origin of the window - may be offscreen.
655 */
656 dr4 = imesa->BufferSetup[I810_DESTREG_DR4] = ((y0<<16) |
657 (((unsigned)x0)&0xFFFF));
658
659 /* Clip to screen.
660 */
661 if (x0 < 0) x0 = 0;
662 if (y0 < 0) y0 = 0;
663 if (x1 > i810Screen->width-1) x1 = i810Screen->width-1;
664 if (y1 > i810Screen->height-1) y1 = i810Screen->height-1;
665
666
667 /* Onscreen drawing rectangle.
668 */
669 dr2 = imesa->BufferSetup[I810_DESTREG_DR2] = ((y0<<16) | x0);
670 dr3 = imesa->BufferSetup[I810_DESTREG_DR3] = (((y1+1)<<16) | (x1+1));
671
672
673 imesa->dirty |= I810_UPLOAD_BUFFERS;
674 }
675
676
677
678 static void i810CalcViewport( GLcontext *ctx )
679 {
680 i810ContextPtr imesa = I810_CONTEXT(ctx);
681 const GLfloat *v = ctx->Viewport._WindowMap.m;
682 GLfloat *m = imesa->ViewportMatrix.m;
683
684 /* See also i810_translate_vertex. SUBPIXEL adjustments can be done
685 * via state vars, too.
686 */
687 m[MAT_SX] = v[MAT_SX];
688 m[MAT_TX] = v[MAT_TX] + SUBPIXEL_X;
689 m[MAT_SY] = - v[MAT_SY];
690 m[MAT_TY] = - v[MAT_TY] + imesa->driDrawable->h + SUBPIXEL_Y;
691 m[MAT_SZ] = v[MAT_SZ] * (1.0 / 0xffff);
692 m[MAT_TZ] = v[MAT_TZ] * (1.0 / 0xffff);
693 }
694
695 static void i810Viewport( GLcontext *ctx,
696 GLint x, GLint y,
697 GLsizei width, GLsizei height )
698 {
699 i810CalcViewport( ctx );
700 }
701
702 static void i810DepthRange( GLcontext *ctx,
703 GLclampd nearval, GLclampd farval )
704 {
705 i810CalcViewport( ctx );
706 }
707
708
709
710 void i810PrintDirty( const char *msg, GLuint state )
711 {
712 fprintf(stderr, "%s (0x%x): %s%s%s%s\n",
713 msg,
714 (unsigned int) state,
715 (state & I810_UPLOAD_TEX0) ? "upload-tex0, " : "",
716 (state & I810_UPLOAD_TEX1) ? "upload-tex1, " : "",
717 (state & I810_UPLOAD_CTX) ? "upload-ctx, " : "",
718 (state & I810_UPLOAD_BUFFERS) ? "upload-bufs, " : ""
719 );
720 }
721
722
723
724 void i810InitState( GLcontext *ctx )
725 {
726 i810ContextPtr imesa = I810_CONTEXT(ctx);
727 i810ScreenPrivate *i810Screen = imesa->i810Screen;
728
729 memset(imesa->Setup, 0, sizeof(imesa->Setup));
730
731 imesa->Setup[I810_CTXREG_VF] = 0;
732
733 imesa->Setup[I810_CTXREG_MT] = (GFX_OP_MAP_TEXELS |
734 MT_UPDATE_TEXEL1_STATE |
735 MT_TEXEL1_COORD1 |
736 MT_TEXEL1_MAP1 |
737 MT_TEXEL1_DISABLE |
738 MT_UPDATE_TEXEL0_STATE |
739 MT_TEXEL0_COORD0 |
740 MT_TEXEL0_MAP0 |
741 MT_TEXEL0_DISABLE);
742
743 imesa->Setup[I810_CTXREG_MC0] = ( GFX_OP_MAP_COLOR_STAGES |
744 MC_STAGE_0 |
745 MC_UPDATE_DEST |
746 MC_DEST_CURRENT |
747 MC_UPDATE_ARG1 |
748 ((MC_ARG_ITERATED_COLOR |
749 MC_ARG_DONT_REPLICATE_ALPHA |
750 MC_ARG_DONT_INVERT) << MC_ARG1_SHIFT) |
751 MC_UPDATE_ARG2 |
752 ((MC_ARG_ONE |
753 MC_ARG_DONT_REPLICATE_ALPHA |
754 MC_ARG_DONT_INVERT) << MC_ARG2_SHIFT) |
755 MC_UPDATE_OP |
756 MC_OP_ARG1 );
757
758 imesa->Setup[I810_CTXREG_MC1] = ( GFX_OP_MAP_COLOR_STAGES |
759 MC_STAGE_1 |
760 MC_UPDATE_DEST |
761 MC_DEST_CURRENT |
762 MC_UPDATE_ARG1 |
763 ((MC_ARG_ONE |
764 MC_ARG_DONT_REPLICATE_ALPHA |
765 MC_ARG_DONT_INVERT) << MC_ARG1_SHIFT) |
766 MC_UPDATE_ARG2 |
767 ((MC_ARG_ONE |
768 MC_ARG_DONT_REPLICATE_ALPHA |
769 MC_ARG_DONT_INVERT) << MC_ARG2_SHIFT) |
770 MC_UPDATE_OP |
771 MC_OP_DISABLE );
772
773
774 imesa->Setup[I810_CTXREG_MC2] = ( GFX_OP_MAP_COLOR_STAGES |
775 MC_STAGE_2 |
776 MC_UPDATE_DEST |
777 MC_DEST_CURRENT |
778 MC_UPDATE_ARG1 |
779 ((MC_ARG_CURRENT_COLOR |
780 MC_ARG_REPLICATE_ALPHA |
781 MC_ARG_DONT_INVERT) << MC_ARG1_SHIFT) |
782 MC_UPDATE_ARG2 |
783 ((MC_ARG_ONE |
784 MC_ARG_DONT_REPLICATE_ALPHA |
785 MC_ARG_DONT_INVERT) << MC_ARG2_SHIFT) |
786 MC_UPDATE_OP |
787 MC_OP_DISABLE );
788
789
790 imesa->Setup[I810_CTXREG_MA0] = ( GFX_OP_MAP_ALPHA_STAGES |
791 MA_STAGE_0 |
792 MA_UPDATE_ARG1 |
793 ((MA_ARG_ITERATED_ALPHA |
794 MA_ARG_DONT_INVERT) << MA_ARG1_SHIFT) |
795 MA_UPDATE_ARG2 |
796 ((MA_ARG_CURRENT_ALPHA |
797 MA_ARG_DONT_INVERT) << MA_ARG2_SHIFT) |
798 MA_UPDATE_OP |
799 MA_OP_ARG1 );
800
801
802 imesa->Setup[I810_CTXREG_MA1] = ( GFX_OP_MAP_ALPHA_STAGES |
803 MA_STAGE_1 |
804 MA_UPDATE_ARG1 |
805 ((MA_ARG_CURRENT_ALPHA |
806 MA_ARG_DONT_INVERT) << MA_ARG1_SHIFT) |
807 MA_UPDATE_ARG2 |
808 ((MA_ARG_CURRENT_ALPHA |
809 MA_ARG_DONT_INVERT) << MA_ARG2_SHIFT) |
810 MA_UPDATE_OP |
811 MA_OP_ARG1 );
812
813
814 imesa->Setup[I810_CTXREG_MA2] = ( GFX_OP_MAP_ALPHA_STAGES |
815 MA_STAGE_2 |
816 MA_UPDATE_ARG1 |
817 ((MA_ARG_CURRENT_ALPHA |
818 MA_ARG_DONT_INVERT) << MA_ARG1_SHIFT) |
819 MA_UPDATE_ARG2 |
820 ((MA_ARG_CURRENT_ALPHA |
821 MA_ARG_DONT_INVERT) << MA_ARG2_SHIFT) |
822 MA_UPDATE_OP |
823 MA_OP_ARG1 );
824
825
826 imesa->Setup[I810_CTXREG_SDM] = ( GFX_OP_SRC_DEST_MONO |
827 SDM_UPDATE_MONO_ENABLE |
828 0 |
829 SDM_UPDATE_SRC_BLEND |
830 SDM_SRC_ONE |
831 SDM_UPDATE_DST_BLEND |
832 SDM_DST_ZERO );
833
834 /* Use for colormask:
835 */
836 imesa->Setup[I810_CTXREG_CF0] = GFX_OP_COLOR_FACTOR;
837 imesa->Setup[I810_CTXREG_CF1] = 0xffffffff;
838
839 imesa->Setup[I810_CTXREG_ZA] = (GFX_OP_ZBIAS_ALPHAFUNC |
840 ZA_UPDATE_ALPHAFUNC |
841 ZA_ALPHA_ALWAYS |
842 ZA_UPDATE_ZBIAS |
843 0 |
844 ZA_UPDATE_ALPHAREF |
845 0x0);
846
847 imesa->Setup[I810_CTXREG_FOG] = (GFX_OP_FOG_COLOR |
848 (0xffffff & ~FOG_RESERVED_MASK));
849
850 /* Choose a pipe
851 */
852 imesa->Setup[I810_CTXREG_B1] = ( GFX_OP_BOOL_1 |
853 B1_UPDATE_SPEC_SETUP_ENABLE |
854 0 |
855 B1_UPDATE_ALPHA_SETUP_ENABLE |
856 B1_ALPHA_SETUP_ENABLE |
857 B1_UPDATE_CI_KEY_ENABLE |
858 0 |
859 B1_UPDATE_CHROMAKEY_ENABLE |
860 0 |
861 B1_UPDATE_Z_BIAS_ENABLE |
862 0 |
863 B1_UPDATE_SPEC_ENABLE |
864 0 |
865 B1_UPDATE_FOG_ENABLE |
866 0 |
867 B1_UPDATE_ALPHA_TEST_ENABLE |
868 0 |
869 B1_UPDATE_BLEND_ENABLE |
870 0 |
871 B1_UPDATE_Z_TEST_ENABLE |
872 0 );
873
874 imesa->Setup[I810_CTXREG_B2] = ( GFX_OP_BOOL_2 |
875 B2_UPDATE_MAP_CACHE_ENABLE |
876 B2_MAP_CACHE_ENABLE |
877 B2_UPDATE_ALPHA_DITHER_ENABLE |
878 0 |
879 B2_UPDATE_FOG_DITHER_ENABLE |
880 0 |
881 B2_UPDATE_SPEC_DITHER_ENABLE |
882 0 |
883 B2_UPDATE_RGB_DITHER_ENABLE |
884 B2_RGB_DITHER_ENABLE |
885 B2_UPDATE_FB_WRITE_ENABLE |
886 B2_FB_WRITE_ENABLE |
887 B2_UPDATE_ZB_WRITE_ENABLE |
888 B2_ZB_WRITE_ENABLE );
889
890 imesa->Setup[I810_CTXREG_LCS] = ( GFX_OP_LINEWIDTH_CULL_SHADE_MODE |
891 LCS_UPDATE_ZMODE |
892 LCS_Z_LESS |
893 LCS_UPDATE_LINEWIDTH |
894 LCS_LINEWIDTH_1_0 |
895 LCS_UPDATE_ALPHA_INTERP |
896 LCS_ALPHA_INTERP |
897 LCS_UPDATE_FOG_INTERP |
898 0 |
899 LCS_UPDATE_SPEC_INTERP |
900 0 |
901 LCS_UPDATE_RGB_INTERP |
902 LCS_RGB_INTERP |
903 LCS_UPDATE_CULL_MODE |
904 LCS_CULL_DISABLE);
905
906 imesa->LcsCullMode = LCS_CULL_CW;
907 imesa->LcsLineWidth = LCS_LINEWIDTH_1_0;
908 imesa->LcsPointSize = LCS_LINEWIDTH_1_0;
909
910 imesa->Setup[I810_CTXREG_PV] = ( GFX_OP_PV_RULE |
911 PV_UPDATE_PIXRULE |
912 PV_PIXRULE_ENABLE |
913 PV_UPDATE_LINELIST |
914 PV_LINELIST_PV1 |
915 PV_UPDATE_TRIFAN |
916 PV_TRIFAN_PV2 |
917 PV_UPDATE_TRISTRIP |
918 PV_TRISTRIP_PV2 );
919
920
921 imesa->Setup[I810_CTXREG_ST0] = GFX_OP_STIPPLE;
922 imesa->Setup[I810_CTXREG_ST1] = 0;
923
924 imesa->Setup[I810_CTXREG_AA] = ( GFX_OP_ANTIALIAS |
925 AA_UPDATE_EDGEFLAG |
926 0 |
927 AA_UPDATE_POLYWIDTH |
928 AA_POLYWIDTH_05 |
929 AA_UPDATE_LINEWIDTH |
930 AA_LINEWIDTH_05 |
931 AA_UPDATE_BB_EXPANSION |
932 0 |
933 AA_UPDATE_AA_ENABLE |
934 0 );
935
936 memset(imesa->BufferSetup, 0, sizeof(imesa->BufferSetup));
937 imesa->BufferSetup[I810_DESTREG_DI0] = CMD_OP_DESTBUFFER_INFO;
938
939 if (imesa->glCtx->Visual.doubleBufferMode && imesa->sarea->pf_current_page == 0) {
940 /* use back buffer by default */
941 imesa->BufferSetup[I810_DESTREG_DI1] = (i810Screen->backOffset |
942 i810Screen->backPitchBits);
943 } else {
944 /* use front buffer by default */
945 imesa->BufferSetup[I810_DESTREG_DI1] = (i810Screen->fbOffset |
946 i810Screen->backPitchBits);
947 }
948
949 imesa->BufferSetup[I810_DESTREG_DV0] = GFX_OP_DESTBUFFER_VARS;
950 imesa->BufferSetup[I810_DESTREG_DV1] = (DV_HORG_BIAS_OGL |
951 DV_VORG_BIAS_OGL |
952 i810Screen->fbFormat);
953
954 imesa->BufferSetup[I810_DESTREG_DR0] = GFX_OP_DRAWRECT_INFO;
955 imesa->BufferSetup[I810_DESTREG_DR1] = DR1_RECT_CLIP_ENABLE;
956 }
957
958
959 static void i810InvalidateState( GLcontext *ctx, GLuint new_state )
960 {
961 _swrast_InvalidateState( ctx, new_state );
962 _swsetup_InvalidateState( ctx, new_state );
963 _vbo_InvalidateState( ctx, new_state );
964 _tnl_InvalidateState( ctx, new_state );
965 I810_CONTEXT(ctx)->new_state |= new_state;
966 }
967
968
969 void i810InitStateFuncs(GLcontext *ctx)
970 {
971 /* Callbacks for internal Mesa events.
972 */
973 ctx->Driver.UpdateState = i810InvalidateState;
974
975 /* API callbacks
976 */
977 ctx->Driver.AlphaFunc = i810AlphaFunc;
978 ctx->Driver.BlendEquationSeparate = i810BlendEquationSeparate;
979 ctx->Driver.BlendFuncSeparate = i810BlendFuncSeparate;
980 ctx->Driver.ClearColor = i810ClearColor;
981 ctx->Driver.ColorMask = i810ColorMask;
982 ctx->Driver.CullFace = i810CullFaceFrontFace;
983 ctx->Driver.DepthFunc = i810DepthFunc;
984 ctx->Driver.DepthMask = i810DepthMask;
985 ctx->Driver.Enable = i810Enable;
986 ctx->Driver.Fogfv = i810Fogfv;
987 ctx->Driver.FrontFace = i810CullFaceFrontFace;
988 ctx->Driver.LineWidth = i810LineWidth;
989 ctx->Driver.LogicOpcode = i810LogicOp;
990 ctx->Driver.PolygonStipple = i810PolygonStipple;
991 ctx->Driver.RenderMode = i810RenderMode;
992 ctx->Driver.Scissor = i810Scissor;
993 ctx->Driver.DrawBuffer = i810DrawBuffer;
994 ctx->Driver.ReadBuffer = i810ReadBuffer;
995 ctx->Driver.ShadeModel = i810ShadeModel;
996 ctx->Driver.DepthRange = i810DepthRange;
997 ctx->Driver.Viewport = i810Viewport;
998 ctx->Driver.PointSize = i810PointSize;
999
1000 if (IS_I815(I810_CONTEXT(ctx))) {
1001 ctx->Driver.LightModelfv = i810LightModelfv_i815;
1002 } else {
1003 ctx->Driver.LightModelfv = i810LightModelfv;
1004 }
1005 }