2 * Copyright 2000-2001 VA Linux Systems, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
25 * Keith Whitwell <keith@tungstengraphics.com>
27 /* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgastate.c,v 1.13 2002/10/30 12:51:36 alanh Exp $ */
35 #include "mgacontext.h"
44 #include "swrast/swrast.h"
45 #include "array_cache/acache.h"
47 #include "tnl/t_context.h"
48 #include "tnl/t_pipeline.h"
49 #include "swrast_setup/swrast_setup.h"
53 static void updateSpecularLighting( GLcontext
*ctx
);
55 static const GLuint mgarop_NoBLK
[16] = {
56 DC_atype_rpl
| 0x00000000, DC_atype_rstr
| 0x00080000,
57 DC_atype_rstr
| 0x00040000, DC_atype_rpl
| 0x000c0000,
58 DC_atype_rstr
| 0x00020000, DC_atype_rstr
| 0x000a0000,
59 DC_atype_rstr
| 0x00060000, DC_atype_rstr
| 0x000e0000,
60 DC_atype_rstr
| 0x00010000, DC_atype_rstr
| 0x00090000,
61 DC_atype_rstr
| 0x00050000, DC_atype_rstr
| 0x000d0000,
62 DC_atype_rpl
| 0x00030000, DC_atype_rstr
| 0x000b0000,
63 DC_atype_rstr
| 0x00070000, DC_atype_rpl
| 0x000f0000
66 /* =============================================================
70 static void mgaDDAlphaFunc(GLcontext
*ctx
, GLenum func
, GLfloat ref
)
72 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
76 CLAMPED_FLOAT_TO_UBYTE(refByte
, ref
);
102 a
= AC_atmode_noacmp
;
109 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
110 mmesa
->hw
.alpha_func
= a
| MGA_FIELD( AC_atref
, refByte
);
113 static void updateBlendLogicOp(GLcontext
*ctx
)
115 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
117 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
119 mmesa
->hw
.blend_func_enable
=
120 (ctx
->Color
.BlendEnabled
&& !ctx
->Color
._LogicOpEnabled
) ? ~0 : 0;
122 FALLBACK( ctx
, MGA_FALLBACK_BLEND
,
123 ctx
->Color
.BlendEnabled
&& !ctx
->Color
._LogicOpEnabled
&&
124 mmesa
->hw
.blend_func
== (AC_src_src_alpha_sat
| AC_dst_zero
) );
127 static void mgaDDBlendEquationSeparate(GLcontext
*ctx
,
128 GLenum modeRGB
, GLenum modeA
)
130 assert( modeRGB
== modeA
);
131 updateBlendLogicOp( ctx
);
134 static void mgaDDBlendFuncSeparate( GLcontext
*ctx
, GLenum sfactorRGB
,
135 GLenum dfactorRGB
, GLenum sfactorA
,
138 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
142 switch (ctx
->Color
.BlendSrcRGB
) {
144 src
= AC_src_zero
; break;
146 src
= AC_src_src_alpha
; break;
148 default: /* never happens */
149 src
= AC_src_one
; break;
151 src
= AC_src_dst_color
; break;
152 case GL_ONE_MINUS_DST_COLOR
:
153 src
= AC_src_om_dst_color
; break;
154 case GL_ONE_MINUS_SRC_ALPHA
:
155 src
= AC_src_om_src_alpha
; break;
157 src
= (ctx
->Visual
.alphaBits
> 0)
158 ? AC_src_dst_alpha
: AC_src_one
;
160 case GL_ONE_MINUS_DST_ALPHA
:
161 src
= (ctx
->Visual
.alphaBits
> 0)
162 ? AC_src_om_dst_alpha
: AC_src_zero
;
164 case GL_SRC_ALPHA_SATURATE
:
165 src
= (ctx
->Visual
.alphaBits
> 0)
166 ? AC_src_src_alpha_sat
: AC_src_zero
;
170 switch (ctx
->Color
.BlendDstRGB
) {
172 dst
= AC_dst_src_alpha
; break;
173 case GL_ONE_MINUS_SRC_ALPHA
:
174 dst
= AC_dst_om_src_alpha
; break;
175 default: /* never happens */
177 dst
= AC_dst_zero
; break;
179 dst
= AC_dst_one
; break;
181 dst
= AC_dst_src_color
; break;
182 case GL_ONE_MINUS_SRC_COLOR
:
183 dst
= AC_dst_om_src_color
; break;
185 dst
= (ctx
->Visual
.alphaBits
> 0)
186 ? AC_dst_dst_alpha
: AC_dst_one
;
188 case GL_ONE_MINUS_DST_ALPHA
:
189 dst
= (ctx
->Visual
.alphaBits
> 0)
190 ? AC_dst_om_dst_alpha
: AC_dst_zero
;
194 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
195 mmesa
->hw
.blend_func
= (src
| dst
);
197 FALLBACK( ctx
, MGA_FALLBACK_BLEND
,
198 ctx
->Color
.BlendEnabled
&& !ctx
->Color
._LogicOpEnabled
&&
199 mmesa
->hw
.blend_func
== (AC_src_src_alpha_sat
| AC_dst_zero
) );
202 /* =============================================================
206 static void mgaDDDepthFunc(GLcontext
*ctx
, GLenum func
)
208 mgaContextPtr mmesa
= MGA_CONTEXT( ctx
);
213 /* can't do this in h/w, we'll use a s/w fallback */
214 FALLBACK (ctx
, MGA_FALLBACK_DEPTH
, ctx
->Depth
.Test
);
218 zmode
= DC_zmode_nozcmp
; break;
220 zmode
= DC_zmode_zlt
; break;
222 zmode
= DC_zmode_zlte
; break;
224 zmode
= DC_zmode_ze
; break;
226 zmode
= DC_zmode_zgt
; break;
228 zmode
= DC_zmode_zgte
; break;
230 zmode
= DC_zmode_zne
; break;
235 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
236 mmesa
->hw
.zmode
&= DC_zmode_MASK
;
237 mmesa
->hw
.zmode
|= zmode
;
240 static void mgaDDDepthMask(GLcontext
*ctx
, GLboolean flag
)
242 mgaContextPtr mmesa
= MGA_CONTEXT( ctx
);
245 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
246 mmesa
->hw
.zmode
&= DC_atype_MASK
;
247 mmesa
->hw
.zmode
|= (flag
) ? DC_atype_zi
: DC_atype_i
;
251 static void mgaDDClearDepth(GLcontext
*ctx
, GLclampd d
)
253 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
255 /* Select the Z depth. The ~ is used because the _MASK values in the
256 * MGA driver are used to mask OFF the selected bits. In this case,
257 * we want to mask off everything except the MA_zwidth bits.
259 switch (mmesa
->setup
.maccess
& ~MA_zwidth_MASK
) {
260 case MA_zwidth_16
: mmesa
->ClearDepth
= d
* 0x0000ffff; break;
261 case MA_zwidth_24
: mmesa
->ClearDepth
= d
* 0xffffff00; break;
262 case MA_zwidth_32
: mmesa
->ClearDepth
= d
* 0xffffffff; break;
268 /* =============================================================
273 static void mgaDDFogfv(GLcontext
*ctx
, GLenum pname
, const GLfloat
*param
)
275 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
277 if (pname
== GL_FOG_COLOR
) {
278 GLuint color
= PACK_COLOR_888((GLubyte
)(ctx
->Fog
.Color
[0]*255.0F
),
279 (GLubyte
)(ctx
->Fog
.Color
[1]*255.0F
),
280 (GLubyte
)(ctx
->Fog
.Color
[2]*255.0F
));
282 MGA_STATECHANGE(mmesa
, MGA_UPLOAD_CONTEXT
);
283 mmesa
->setup
.fogcolor
= color
;
288 /* =============================================================
293 void mgaUpdateClipping(const GLcontext
*ctx
)
295 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
297 if (mmesa
->driDrawable
)
299 int x1
= mmesa
->driDrawable
->x
+ ctx
->Scissor
.X
;
300 int y1
= mmesa
->driDrawable
->y
+ mmesa
->driDrawable
->h
301 - (ctx
->Scissor
.Y
+ ctx
->Scissor
.Height
);
302 int x2
= x1
+ ctx
->Scissor
.Width
- 1;
303 int y2
= y1
+ ctx
->Scissor
.Height
- 1;
310 mmesa
->scissor_rect
.x1
= x1
;
311 mmesa
->scissor_rect
.y1
= y1
;
312 mmesa
->scissor_rect
.x2
= x2
;
313 mmesa
->scissor_rect
.y2
= y2
;
315 mmesa
->dirty
|= MGA_UPLOAD_CLIPRECTS
;
320 static void mgaDDScissor( GLcontext
*ctx
, GLint x
, GLint y
,
321 GLsizei w
, GLsizei h
)
323 if ( ctx
->Scissor
.Enabled
) {
324 FLUSH_BATCH( MGA_CONTEXT(ctx
) ); /* don't pipeline cliprect changes */
325 mgaUpdateClipping( ctx
);
330 /* =============================================================
335 #define _CULL_DISABLE 0
336 #define _CULL_NEGATIVE ((1<<11)|(1<<5)|(1<<16))
337 #define _CULL_POSITIVE (1<<11)
339 static void mgaDDCullFaceFrontFace(GLcontext
*ctx
, GLenum unused
)
341 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
343 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
344 if (ctx
->Polygon
.CullFlag
&&
345 ctx
->Polygon
.CullFaceMode
!= GL_FRONT_AND_BACK
)
347 mmesa
->hw
.cull
= _CULL_NEGATIVE
;
349 if (ctx
->Polygon
.CullFaceMode
== GL_FRONT
)
350 mmesa
->hw
.cull
^= (_CULL_POSITIVE
^ _CULL_NEGATIVE
);
352 if (ctx
->Polygon
.FrontFace
!= GL_CCW
)
353 mmesa
->hw
.cull
^= (_CULL_POSITIVE
^ _CULL_NEGATIVE
);
355 mmesa
->hw
.cull_dualtex
= mmesa
->hw
.cull
^
356 (_CULL_POSITIVE
^ _CULL_NEGATIVE
); /* warp bug? */
359 mmesa
->hw
.cull
= _CULL_DISABLE
;
360 mmesa
->hw
.cull_dualtex
= _CULL_DISABLE
;
365 /* =============================================================
369 static void mgaDDColorMask(GLcontext
*ctx
,
370 GLboolean r
, GLboolean g
,
371 GLboolean b
, GLboolean a
)
373 mgaContextPtr mmesa
= MGA_CONTEXT( ctx
);
374 mgaScreenPrivate
*mgaScreen
= mmesa
->mgaScreen
;
377 GLuint mask
= mgaPackColor(mgaScreen
->cpp
,
378 ctx
->Color
.ColorMask
[RCOMP
],
379 ctx
->Color
.ColorMask
[GCOMP
],
380 ctx
->Color
.ColorMask
[BCOMP
],
381 ctx
->Color
.ColorMask
[ACOMP
]);
383 if (mgaScreen
->cpp
== 2)
384 mask
= mask
| (mask
<< 16);
386 if (mmesa
->setup
.plnwt
!= mask
) {
387 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
388 mmesa
->setup
.plnwt
= mask
;
393 /* =============================================================
397 static int mgaStipples
[16] = {
417 * The MGA supports a subset of possible 4x4 stipples natively, GL
418 * wants 32x32. Fortunately stipple is usually a repeating pattern.
420 * \param ctx GL rendering context to be affected
421 * \param mask Pointer to the 32x32 stipple mask
424 static void mgaDDPolygonStipple( GLcontext
*ctx
, const GLubyte
*mask
)
426 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
427 const GLubyte
*m
= mask
;
430 int active
= (ctx
->Polygon
.StippleFlag
&&
431 mmesa
->raster_primitive
== GL_TRIANGLES
);
435 mmesa
->haveHwStipple
= 0;
438 mmesa
->dirty
|= MGA_UPLOAD_CONTEXT
;
439 mmesa
->setup
.dwgctl
&= ~(0xf<<20);
442 p
[0] = mask
[0] & 0xf; p
[0] |= p
[0] << 4;
443 p
[1] = mask
[4] & 0xf; p
[1] |= p
[1] << 4;
444 p
[2] = mask
[8] & 0xf; p
[2] |= p
[2] << 4;
445 p
[3] = mask
[12] & 0xf; p
[3] |= p
[3] << 4;
447 for (k
= 0 ; k
< 8 ; k
++)
448 for (j
= 0 ; j
< 4; j
++)
449 for (i
= 0 ; i
< 4 ; i
++)
454 stipple
= ( ((p
[0] & 0xf) << 0) |
455 ((p
[1] & 0xf) << 4) |
456 ((p
[2] & 0xf) << 8) |
457 ((p
[3] & 0xf) << 12) );
459 for (i
= 0 ; i
< 16 ; i
++)
460 if (mgaStipples
[i
] == stipple
) {
461 mmesa
->poly_stipple
= i
<<20;
462 mmesa
->haveHwStipple
= 1;
467 mmesa
->setup
.dwgctl
&= ~(0xf<<20);
468 mmesa
->setup
.dwgctl
|= mmesa
->poly_stipple
;
473 /* =============================================================
474 * Rendering attributes
476 * We really don't want to recalculate all this every time we bind a
477 * texture. These things shouldn't change all that often, so it makes
478 * sense to break them out of the core texture state update routines.
481 static void updateSpecularLighting( GLcontext
*ctx
)
483 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
486 specen
= NEED_SECONDARY_COLOR(ctx
) ? TMC_specen_enable
: 0;
488 if ( specen
!= mmesa
->hw
.specen
) {
489 mmesa
->hw
.specen
= specen
;
490 mmesa
->dirty
|= MGA_UPLOAD_TEX0
| MGA_UPLOAD_TEX1
;
495 /* =============================================================
500 static void mgaDDLightModelfv(GLcontext
*ctx
, GLenum pname
,
501 const GLfloat
*param
)
503 if (pname
== GL_LIGHT_MODEL_COLOR_CONTROL
) {
504 FLUSH_BATCH( MGA_CONTEXT(ctx
) );
505 updateSpecularLighting( ctx
);
510 /* =============================================================
515 static void mgaDDStencilFunc(GLcontext
*ctx
, GLenum func
, GLint ref
,
518 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
522 stencil
= MGA_FIELD( S_sref
, ref
) | MGA_FIELD( S_smsk
, mask
);
526 stencilctl
= SC_smode_snever
;
529 stencilctl
= SC_smode_slt
;
532 stencilctl
= SC_smode_slte
;
535 stencilctl
= SC_smode_sgt
;
538 stencilctl
= SC_smode_sgte
;
541 stencilctl
= SC_smode_sne
;
544 stencilctl
= SC_smode_se
;
548 stencilctl
= SC_smode_salways
;
552 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
553 mmesa
->hw
.stencil
&= (S_sref_MASK
& S_smsk_MASK
);
554 mmesa
->hw
.stencil
|= stencil
;
555 mmesa
->hw
.stencilctl
&= SC_smode_MASK
;
556 mmesa
->hw
.stencilctl
|= stencilctl
;
559 static void mgaDDStencilMask(GLcontext
*ctx
, GLuint mask
)
561 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
563 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
564 mmesa
->hw
.stencil
&= S_swtmsk_MASK
;
565 mmesa
->hw
.stencil
|= MGA_FIELD( S_swtmsk
, mask
);
568 static void mgaDDStencilOp(GLcontext
*ctx
, GLenum fail
, GLenum zfail
,
571 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
575 switch (ctx
->Stencil
.FailFunc
[0])
578 stencilctl
|= SC_sfailop_keep
;
581 stencilctl
|= SC_sfailop_zero
;
584 stencilctl
|= SC_sfailop_replace
;
587 stencilctl
|= SC_sfailop_incrsat
;
590 stencilctl
|= SC_sfailop_decrsat
;
593 stencilctl
|= SC_sfailop_incr
;
596 stencilctl
|= SC_sfailop_decr
;
599 stencilctl
|= SC_sfailop_invert
;
605 switch (ctx
->Stencil
.ZFailFunc
[0])
608 stencilctl
|= SC_szfailop_keep
;
611 stencilctl
|= SC_szfailop_zero
;
614 stencilctl
|= SC_szfailop_replace
;
617 stencilctl
|= SC_szfailop_incrsat
;
620 stencilctl
|= SC_szfailop_decrsat
;
623 stencilctl
|= SC_szfailop_incr
;
626 stencilctl
|= SC_szfailop_decr
;
629 stencilctl
|= SC_szfailop_invert
;
635 switch (ctx
->Stencil
.ZPassFunc
[0])
638 stencilctl
|= SC_szpassop_keep
;
641 stencilctl
|= SC_szpassop_zero
;
644 stencilctl
|= SC_szpassop_replace
;
647 stencilctl
|= SC_szpassop_incrsat
;
650 stencilctl
|= SC_szpassop_decrsat
;
653 stencilctl
|= SC_szpassop_incr
;
656 stencilctl
|= SC_szpassop_decr
;
659 stencilctl
|= SC_szpassop_invert
;
665 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
666 mmesa
->hw
.stencilctl
&= (SC_sfailop_MASK
& SC_szfailop_MASK
668 mmesa
->hw
.stencilctl
|= stencilctl
;
672 /* =============================================================
673 * Window position and viewport transformation
676 void mgaCalcViewport( GLcontext
*ctx
)
678 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
679 const GLfloat
*v
= ctx
->Viewport
._WindowMap
.m
;
680 GLfloat
*m
= mmesa
->hw_viewport
;
682 /* See also mga_translate_vertex.
684 m
[MAT_SX
] = v
[MAT_SX
];
685 m
[MAT_TX
] = v
[MAT_TX
] + mmesa
->drawX
+ SUBPIXEL_X
;
686 m
[MAT_SY
] = - v
[MAT_SY
];
687 m
[MAT_TY
] = - v
[MAT_TY
] + mmesa
->driDrawable
->h
+ mmesa
->drawY
+ SUBPIXEL_Y
;
688 m
[MAT_SZ
] = v
[MAT_SZ
] * mmesa
->depth_scale
;
689 m
[MAT_TZ
] = v
[MAT_TZ
] * mmesa
->depth_scale
;
691 mmesa
->SetupNewInputs
= ~0;
694 static void mgaViewport( GLcontext
*ctx
,
696 GLsizei width
, GLsizei height
)
698 mgaCalcViewport( ctx
);
701 static void mgaDepthRange( GLcontext
*ctx
,
702 GLclampd nearval
, GLclampd farval
)
704 mgaCalcViewport( ctx
);
708 /* =============================================================
712 static void mgaDDClearColor(GLcontext
*ctx
,
713 const GLfloat color
[4] )
715 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
717 CLAMPED_FLOAT_TO_UBYTE(c
[0], color
[0]);
718 CLAMPED_FLOAT_TO_UBYTE(c
[1], color
[1]);
719 CLAMPED_FLOAT_TO_UBYTE(c
[2], color
[2]);
720 CLAMPED_FLOAT_TO_UBYTE(c
[3], color
[3]);
722 mmesa
->ClearColor
= mgaPackColor( mmesa
->mgaScreen
->cpp
,
723 c
[0], c
[1], c
[2], c
[3]);
727 /* Fallback to swrast for select and feedback.
729 static void mgaRenderMode( GLcontext
*ctx
, GLenum mode
)
731 FALLBACK( ctx
, MGA_FALLBACK_RENDERMODE
, (mode
!= GL_RENDER
) );
735 static void mgaDDLogicOp( GLcontext
*ctx
, GLenum opcode
)
737 mgaContextPtr mmesa
= MGA_CONTEXT( ctx
);
739 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
740 mmesa
->hw
.rop
= mgarop_NoBLK
[ opcode
& 0x0f ];
744 static void mgaXMesaSetFrontClipRects( mgaContextPtr mmesa
)
746 __DRIdrawablePrivate
*driDrawable
= mmesa
->driDrawable
;
748 if (driDrawable
->numClipRects
== 0) {
749 static drm_clip_rect_t zeroareacliprect
= {0,0,0,0};
750 mmesa
->numClipRects
= 1;
751 mmesa
->pClipRects
= &zeroareacliprect
;
753 mmesa
->numClipRects
= driDrawable
->numClipRects
;
754 mmesa
->pClipRects
= driDrawable
->pClipRects
;
756 mmesa
->drawX
= driDrawable
->x
;
757 mmesa
->drawY
= driDrawable
->y
;
759 mmesa
->setup
.dstorg
= mmesa
->drawOffset
;
760 mmesa
->dirty
|= MGA_UPLOAD_CONTEXT
| MGA_UPLOAD_CLIPRECTS
;
764 static void mgaXMesaSetBackClipRects( mgaContextPtr mmesa
)
766 __DRIdrawablePrivate
*driDrawable
= mmesa
->driDrawable
;
768 if (driDrawable
->numBackClipRects
== 0)
770 if (driDrawable
->numClipRects
== 0) {
771 static drm_clip_rect_t zeroareacliprect
= {0,0,0,0};
772 mmesa
->numClipRects
= 1;
773 mmesa
->pClipRects
= &zeroareacliprect
;
775 mmesa
->numClipRects
= driDrawable
->numClipRects
;
776 mmesa
->pClipRects
= driDrawable
->pClipRects
;
778 mmesa
->drawX
= driDrawable
->x
;
779 mmesa
->drawY
= driDrawable
->y
;
781 mmesa
->numClipRects
= driDrawable
->numBackClipRects
;
782 mmesa
->pClipRects
= driDrawable
->pBackClipRects
;
783 mmesa
->drawX
= driDrawable
->backX
;
784 mmesa
->drawY
= driDrawable
->backY
;
787 mmesa
->setup
.dstorg
= mmesa
->drawOffset
;
788 mmesa
->dirty
|= MGA_UPLOAD_CONTEXT
| MGA_UPLOAD_CLIPRECTS
;
792 void mgaUpdateRects( mgaContextPtr mmesa
, GLuint buffers
)
794 __DRIdrawablePrivate
*driDrawable
= mmesa
->driDrawable
;
795 drm_mga_sarea_t
*sarea
= mmesa
->sarea
;
798 DRI_VALIDATE_DRAWABLE_INFO(mmesa
->driScreen
, driDrawable
);
799 mmesa
->dirty_cliprects
= 0;
801 if (mmesa
->draw_buffer
== MGA_FRONT
)
802 mgaXMesaSetFrontClipRects( mmesa
);
804 mgaXMesaSetBackClipRects( mmesa
);
806 sarea
->req_drawable
= driDrawable
->draw
;
807 sarea
->req_draw_buffer
= mmesa
->draw_buffer
;
809 mgaUpdateClipping( mmesa
->glCtx
);
810 mgaCalcViewport( mmesa
->glCtx
);
812 mmesa
->dirty
|= MGA_UPLOAD_CLIPRECTS
;
816 static void mgaDDDrawBuffer(GLcontext
*ctx
, GLenum mode
)
818 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
820 FLUSH_BATCH( mmesa
);
823 * _DrawDestMask is easier to cope with than <mode>.
825 switch ( ctx
->Color
._DrawDestMask
) {
826 case DD_FRONT_LEFT_BIT
:
827 mmesa
->setup
.dstorg
= mmesa
->mgaScreen
->frontOffset
;
828 mmesa
->dirty
|= MGA_UPLOAD_CONTEXT
;
829 mmesa
->draw_buffer
= MGA_FRONT
;
830 mgaXMesaSetFrontClipRects( mmesa
);
831 FALLBACK( ctx
, MGA_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
833 case DD_BACK_LEFT_BIT
:
834 mmesa
->setup
.dstorg
= mmesa
->mgaScreen
->backOffset
;
835 mmesa
->draw_buffer
= MGA_BACK
;
836 mmesa
->dirty
|= MGA_UPLOAD_CONTEXT
;
837 mgaXMesaSetBackClipRects( mmesa
);
838 FALLBACK( ctx
, MGA_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
841 /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
842 FALLBACK( ctx
, MGA_FALLBACK_DRAW_BUFFER
, GL_TRUE
);
846 /* We want to update the s/w rast state too so that r200SetBuffer()
849 _swrast_DrawBuffer(ctx
, mode
);
853 static void mgaDDReadBuffer(GLcontext
*ctx
, GLenum mode
)
855 /* nothing, until we implement h/w glRead/CopyPixels or CopyTexImage */
859 /* =============================================================
860 * State enable/disable
864 static void mgaDDEnable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
866 mgaContextPtr mmesa
= MGA_CONTEXT( ctx
);
870 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
871 if (!ctx
->Color
.DitherFlag
)
872 mmesa
->setup
.maccess
|= MA_nodither_enable
;
874 mmesa
->setup
.maccess
&= ~MA_nodither_enable
;
877 case GL_COLOR_SUM_EXT
:
878 FLUSH_BATCH( mmesa
);
879 updateSpecularLighting( ctx
);
882 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
883 mmesa
->hw
.alpha_func_enable
= (state
) ? ~0 : 0;
886 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
887 FALLBACK (ctx
, MGA_FALLBACK_DEPTH
,
888 ctx
->Depth
.Func
== GL_NEVER
&& ctx
->Depth
.Test
);
891 case GL_SCISSOR_TEST
:
892 FLUSH_BATCH( mmesa
);
893 mmesa
->scissor
= state
;
894 mgaUpdateClipping( ctx
);
898 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
899 if (ctx
->Fog
.Enabled
)
900 mmesa
->setup
.maccess
|= MA_fogen_enable
;
902 mmesa
->setup
.maccess
&= ~MA_fogen_enable
;
905 mgaDDCullFaceFrontFace( ctx
, 0 );
911 case GL_POLYGON_STIPPLE
:
912 if (mmesa
->haveHwStipple
&& mmesa
->raster_primitive
== GL_TRIANGLES
) {
913 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
914 mmesa
->setup
.dwgctl
&= ~(0xf<<20);
916 mmesa
->setup
.dwgctl
|= mmesa
->poly_stipple
;
921 case GL_COLOR_LOGIC_OP
:
922 updateBlendLogicOp( ctx
);
925 case GL_STENCIL_TEST
:
926 MGA_STATECHANGE( mmesa
, MGA_UPLOAD_CONTEXT
);
927 if (mmesa
->hw_stencil
) {
928 mmesa
->hw
.stencil_enable
= ( state
) ? ~0 : 0;
931 FALLBACK( ctx
, MGA_FALLBACK_STENCIL
, state
);
939 /* =============================================================
942 static void mgaDDPrintDirty( const char *msg
, GLuint state
)
944 fprintf(stderr
, "%s (0x%03x): %s%s%s%s%s%s%s\n",
946 (unsigned int) state
,
947 (state
& MGA_WAIT_AGE
) ? "wait-age " : "",
948 (state
& MGA_UPLOAD_TEX0IMAGE
) ? "upload-tex0-img " : "",
949 (state
& MGA_UPLOAD_TEX1IMAGE
) ? "upload-tex1-img " : "",
950 (state
& MGA_UPLOAD_CONTEXT
) ? "upload-ctx " : "",
951 (state
& MGA_UPLOAD_TEX0
) ? "upload-tex0 " : "",
952 (state
& MGA_UPLOAD_TEX1
) ? "upload-tex1 " : "",
953 (state
& MGA_UPLOAD_PIPE
) ? "upload-pipe " : ""
957 /* Push the state into the sarea and/or texture memory.
959 void mgaEmitHwStateLocked( mgaContextPtr mmesa
)
961 drm_mga_sarea_t
*sarea
= mmesa
->sarea
;
962 GLcontext
* ctx
= mmesa
->glCtx
;
964 if (MGA_DEBUG
& DEBUG_VERBOSE_MSG
)
965 mgaDDPrintDirty( __FUNCTION__
, mmesa
->dirty
);
967 if (mmesa
->dirty
& MGA_UPLOAD_CONTEXT
) {
968 mmesa
->setup
.wflag
= _CULL_DISABLE
;
969 if (mmesa
->raster_primitive
== GL_TRIANGLES
) {
970 if ((ctx
->Texture
.Unit
[0]._ReallyEnabled
== TEXTURE_2D_BIT
&&
971 ctx
->Texture
.Unit
[1]._ReallyEnabled
== TEXTURE_2D_BIT
)) {
972 mmesa
->setup
.wflag
= mmesa
->hw
.cull_dualtex
;
975 mmesa
->setup
.wflag
= mmesa
->hw
.cull
;
979 mmesa
->setup
.stencil
= mmesa
->hw
.stencil
980 & mmesa
->hw
.stencil_enable
;
981 mmesa
->setup
.stencilctl
= mmesa
->hw
.stencilctl
982 & mmesa
->hw
.stencil_enable
;
984 /* If depth testing is not enabled, then use the no Z-compare / no
985 * Z-write mode. Otherwise, use whatever is set in hw.zmode.
987 mmesa
->setup
.dwgctl
&= (DC_zmode_MASK
& DC_atype_MASK
);
988 mmesa
->setup
.dwgctl
|= (ctx
->Depth
.Test
)
989 ? mmesa
->hw
.zmode
: (DC_zmode_nozcmp
| DC_atype_i
);
991 mmesa
->setup
.dwgctl
&= DC_bop_MASK
;
992 mmesa
->setup
.dwgctl
|= (ctx
->Color
._LogicOpEnabled
)
993 ? mmesa
->hw
.rop
: mgarop_NoBLK
[ GL_COPY
& 0x0f ];
995 mmesa
->setup
.alphactrl
&= AC_src_MASK
& AC_dst_MASK
& AC_atmode_MASK
996 & AC_atref_MASK
& AC_alphasel_MASK
;
997 mmesa
->setup
.alphactrl
|=
998 (mmesa
->hw
.alpha_func
& mmesa
->hw
.alpha_func_enable
) |
999 (mmesa
->hw
.blend_func
& mmesa
->hw
.blend_func_enable
) |
1000 ((AC_src_one
| AC_dst_zero
) & ~mmesa
->hw
.blend_func_enable
) |
1001 mmesa
->hw
.alpha_sel
;
1003 memcpy( &sarea
->context_state
, &mmesa
->setup
, sizeof(mmesa
->setup
));
1006 if ((mmesa
->dirty
& MGA_UPLOAD_TEX0
) && mmesa
->CurrentTexObj
[0]) {
1007 memcpy(&sarea
->tex_state
[0],
1008 &mmesa
->CurrentTexObj
[0]->setup
,
1009 sizeof(sarea
->tex_state
[0]));
1012 if ((mmesa
->dirty
& MGA_UPLOAD_TEX1
) && mmesa
->CurrentTexObj
[1]) {
1013 memcpy(&sarea
->tex_state
[1],
1014 &mmesa
->CurrentTexObj
[1]->setup
,
1015 sizeof(sarea
->tex_state
[1]));
1018 if (mmesa
->dirty
& (MGA_UPLOAD_TEX0
| MGA_UPLOAD_TEX1
)) {
1019 sarea
->tex_state
[0].texctl2
&= ~TMC_specen_enable
;
1020 sarea
->tex_state
[1].texctl2
&= ~TMC_specen_enable
;
1021 sarea
->tex_state
[0].texctl2
|= mmesa
->hw
.specen
;
1022 sarea
->tex_state
[1].texctl2
|= mmesa
->hw
.specen
;
1025 if (mmesa
->dirty
& MGA_UPLOAD_PIPE
) {
1026 /* mmesa->sarea->wacceptseq = mmesa->hw_primitive; */
1027 mmesa
->sarea
->warp_pipe
= mmesa
->vertex_format
;
1028 mmesa
->sarea
->vertsize
= mmesa
->vertex_size
;
1031 mmesa
->sarea
->dirty
|= mmesa
->dirty
;
1032 mmesa
->dirty
&= MGA_UPLOAD_CLIPRECTS
;
1035 /* =============================================================
1039 static void mgaDDValidateState( GLcontext
*ctx
)
1041 mgaContextPtr mmesa
= MGA_CONTEXT( ctx
);
1043 FLUSH_BATCH( mmesa
);
1045 if (mmesa
->NewGLState
& _NEW_TEXTURE
) {
1046 mgaUpdateTextureState(ctx
);
1049 if (!mmesa
->Fallback
) {
1050 if (mmesa
->NewGLState
& _MGA_NEW_RASTERSETUP
) {
1051 mgaChooseVertexState( ctx
);
1054 if (mmesa
->NewGLState
& _MGA_NEW_RENDERSTATE
) {
1055 mgaChooseRenderState( ctx
);
1059 mmesa
->NewGLState
= 0;
1063 static void mgaDDInvalidateState( GLcontext
*ctx
, GLuint new_state
)
1065 _swrast_InvalidateState( ctx
, new_state
);
1066 _swsetup_InvalidateState( ctx
, new_state
);
1067 _ac_InvalidateState( ctx
, new_state
);
1068 _tnl_InvalidateState( ctx
, new_state
);
1069 MGA_CONTEXT(ctx
)->NewGLState
|= new_state
;
1073 static void mgaRunPipeline( GLcontext
*ctx
)
1075 mgaContextPtr mmesa
= MGA_CONTEXT(ctx
);
1077 if (mmesa
->NewGLState
) {
1078 mgaDDValidateState( ctx
);
1082 mgaEmitHwStateLocked( mmesa
);
1085 _tnl_run_pipeline( ctx
);
1089 void mgaInitState( mgaContextPtr mmesa
)
1091 mgaScreenPrivate
*mgaScreen
= mmesa
->mgaScreen
;
1092 GLcontext
*ctx
= mmesa
->glCtx
;
1094 if (ctx
->Visual
.doubleBufferMode
) {
1095 /* use back buffer by default */
1096 mmesa
->draw_buffer
= MGA_BACK
;
1097 mmesa
->drawOffset
= mmesa
->mgaScreen
->backOffset
;
1098 mmesa
->readOffset
= mmesa
->mgaScreen
->backOffset
;
1099 mmesa
->setup
.dstorg
= mgaScreen
->backOffset
;
1101 /* use front buffer by default */
1102 mmesa
->draw_buffer
= MGA_FRONT
;
1103 mmesa
->drawOffset
= mmesa
->mgaScreen
->frontOffset
;
1104 mmesa
->readOffset
= mmesa
->mgaScreen
->frontOffset
;
1105 mmesa
->setup
.dstorg
= mgaScreen
->frontOffset
;
1108 mmesa
->setup
.maccess
= (MA_memreset_disable
|
1110 MA_tlutload_disable
|
1111 MA_nodither_disable
|
1113 if (driQueryOptioni (&mmesa
->optionCache
, "color_reduction") !=
1114 DRI_CONF_COLOR_REDUCTION_DITHER
)
1115 mmesa
->setup
.maccess
|= MA_nodither_enable
;
1117 switch (mmesa
->mgaScreen
->cpp
) {
1119 mmesa
->setup
.maccess
|= MA_pwidth_16
;
1122 mmesa
->setup
.maccess
|= MA_pwidth_32
;
1125 fprintf( stderr
, "Error: unknown cpp %d, exiting...\n",
1126 mmesa
->mgaScreen
->cpp
);
1130 switch (mmesa
->glCtx
->Visual
.depthBits
) {
1132 mmesa
->setup
.maccess
|= MA_zwidth_16
;
1135 mmesa
->setup
.maccess
|= MA_zwidth_24
;
1138 mmesa
->setup
.maccess
|= MA_zwidth_32
;
1142 mmesa
->hw
.blend_func
= AC_src_one
| AC_dst_zero
;
1143 mmesa
->hw
.blend_func_enable
= 0;
1144 mmesa
->hw
.alpha_func
= AC_atmode_noacmp
| MGA_FIELD( AC_atref
, 0x00 );
1145 mmesa
->hw
.alpha_func_enable
= 0;
1146 mmesa
->hw
.rop
= mgarop_NoBLK
[ GL_COPY
& 0x0f ];
1147 mmesa
->hw
.zmode
= DC_zmode_zlt
| DC_atype_zi
;
1148 mmesa
->hw
.stencil
= MGA_FIELD( S_sref
, 0x00) | MGA_FIELD( S_smsk
, 0xff ) |
1149 MGA_FIELD( S_swtmsk
, 0xff );
1150 mmesa
->hw
.stencilctl
= SC_smode_salways
| SC_sfailop_keep
1151 | SC_szfailop_keep
| SC_szpassop_keep
;
1152 mmesa
->hw
.stencil_enable
= 0;
1153 mmesa
->hw
.cull
= _CULL_DISABLE
;
1154 mmesa
->hw
.cull_dualtex
= _CULL_DISABLE
;
1155 mmesa
->hw
.specen
= 0;
1156 mmesa
->hw
.alpha_sel
= AC_alphasel_diffused
;
1158 mmesa
->setup
.dwgctl
= (DC_opcod_trap
|
1162 DC_sgnzero_disable
|
1163 DC_shftzero_enable
|
1164 MGA_FIELD( DC_bop
, 0xC ) |
1165 MGA_FIELD( DC_trans
, 0x0 ) |
1166 DC_bltmod_bmonolef
|
1167 DC_pattern_disable
|
1169 DC_clipdis_disable
);
1171 mmesa
->setup
.plnwt
= ~0;
1172 mmesa
->setup
.alphactrl
= (AC_amode_alpha_channel
|
1173 AC_astipple_disable
|
1176 mmesa
->setup
.fogcolor
= PACK_COLOR_888((GLubyte
)(ctx
->Fog
.Color
[0]*255.0F
),
1177 (GLubyte
)(ctx
->Fog
.Color
[1]*255.0F
),
1178 (GLubyte
)(ctx
->Fog
.Color
[2]*255.0F
));
1180 mmesa
->setup
.wflag
= 0;
1181 mmesa
->setup
.tdualstage0
= 0;
1182 mmesa
->setup
.tdualstage1
= 0;
1183 mmesa
->setup
.fcol
= 0;
1184 mmesa
->dirty
|= MGA_UPLOAD_CONTEXT
;
1186 mmesa
->envcolor
[0] = 0;
1187 mmesa
->envcolor
[1] = 0;
1191 void mgaDDInitStateFuncs( GLcontext
*ctx
)
1193 ctx
->Driver
.UpdateState
= mgaDDInvalidateState
;
1194 ctx
->Driver
.Enable
= mgaDDEnable
;
1195 ctx
->Driver
.LightModelfv
= mgaDDLightModelfv
;
1196 ctx
->Driver
.AlphaFunc
= mgaDDAlphaFunc
;
1197 ctx
->Driver
.BlendEquationSeparate
= mgaDDBlendEquationSeparate
;
1198 ctx
->Driver
.BlendFuncSeparate
= mgaDDBlendFuncSeparate
;
1199 ctx
->Driver
.DepthFunc
= mgaDDDepthFunc
;
1200 ctx
->Driver
.DepthMask
= mgaDDDepthMask
;
1201 ctx
->Driver
.Fogfv
= mgaDDFogfv
;
1202 ctx
->Driver
.Scissor
= mgaDDScissor
;
1203 ctx
->Driver
.CullFace
= mgaDDCullFaceFrontFace
;
1204 ctx
->Driver
.FrontFace
= mgaDDCullFaceFrontFace
;
1205 ctx
->Driver
.ColorMask
= mgaDDColorMask
;
1207 ctx
->Driver
.DrawBuffer
= mgaDDDrawBuffer
;
1208 ctx
->Driver
.ReadBuffer
= mgaDDReadBuffer
;
1209 ctx
->Driver
.ClearColor
= mgaDDClearColor
;
1210 ctx
->Driver
.ClearDepth
= mgaDDClearDepth
;
1211 ctx
->Driver
.LogicOpcode
= mgaDDLogicOp
;
1213 ctx
->Driver
.PolygonStipple
= mgaDDPolygonStipple
;
1215 ctx
->Driver
.StencilFunc
= mgaDDStencilFunc
;
1216 ctx
->Driver
.StencilMask
= mgaDDStencilMask
;
1217 ctx
->Driver
.StencilOp
= mgaDDStencilOp
;
1219 ctx
->Driver
.DepthRange
= mgaDepthRange
;
1220 ctx
->Driver
.Viewport
= mgaViewport
;
1221 ctx
->Driver
.RenderMode
= mgaRenderMode
;
1223 ctx
->Driver
.ClearIndex
= 0;
1224 ctx
->Driver
.IndexMask
= 0;
1226 /* Swrast hooks for imaging extensions:
1228 ctx
->Driver
.CopyColorTable
= _swrast_CopyColorTable
;
1229 ctx
->Driver
.CopyColorSubTable
= _swrast_CopyColorSubTable
;
1230 ctx
->Driver
.CopyConvolutionFilter1D
= _swrast_CopyConvolutionFilter1D
;
1231 ctx
->Driver
.CopyConvolutionFilter2D
= _swrast_CopyConvolutionFilter2D
;
1233 TNL_CONTEXT(ctx
)->Driver
.RunPipeline
= mgaRunPipeline
;