1 /* $XFree86: xc/lib/GL/mesa/src/drv/i810/i810state.c,v 1.9 2002/10/30 12:51:33 alanh Exp $ */
13 #include "i810screen.h"
16 #include "i810context.h"
17 #include "i810state.h"
21 #include "i810ioctl.h"
23 #include "swrast/swrast.h"
24 #include "array_cache/acache.h"
26 #include "swrast_setup/swrast_setup.h"
28 #include "tnl/t_pipeline.h"
30 static __inline__ GLuint
i810PackColor(GLuint format
,
35 if (I810_DEBUG
&DEBUG_DRI
)
36 fprintf(stderr
, "%s\n", __FUNCTION__
);
40 return PACK_COLOR_1555( a
, r
, g
, b
);
42 return PACK_COLOR_565( r
, g
, b
);
44 fprintf(stderr
, "unknown format %d\n", (int)format
);
50 static void i810AlphaFunc(GLcontext
*ctx
, GLenum func
, GLfloat ref
)
52 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
53 GLuint a
= (ZA_UPDATE_ALPHAFUNC
|ZA_UPDATE_ALPHAREF
);
56 CLAMPED_FLOAT_TO_UBYTE(refByte
, ref
);
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;
70 a
|= ((refByte
& 0xfc) << ZA_ALPHAREF_SHIFT
);
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
;
77 static void i810BlendEquationSeparate(GLcontext
*ctx
,
78 GLenum modeRGB
, GLenum modeA
)
80 assert( modeRGB
== modeA
);
82 /* Can only do GL_ADD equation in hardware */
83 FALLBACK( I810_CONTEXT(ctx
), I810_FALLBACK_BLEND_EQ
,
84 modeRGB
!= GL_FUNC_ADD
);
86 /* BlendEquation sets ColorLogicOpEnabled in an unexpected
89 FALLBACK( I810_CONTEXT(ctx
), I810_FALLBACK_LOGICOP
,
90 (ctx
->Color
.ColorLogicOpEnabled
&&
91 ctx
->Color
.LogicOp
!= GL_COPY
));
94 static void i810BlendFuncSeparate( GLcontext
*ctx
, GLenum sfactorRGB
,
95 GLenum dfactorRGB
, GLenum sfactorA
,
98 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
99 GLuint a
= SDM_UPDATE_SRC_BLEND
| SDM_UPDATE_DST_BLEND
;
100 GLboolean fallback
= GL_FALSE
;
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;
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.
119 case GL_SRC_ALPHA_SATURATE
: a
|= SDM_SRC_ZERO
; break;
121 case GL_CONSTANT_COLOR
:
122 case GL_ONE_MINUS_CONSTANT_COLOR
:
123 case GL_CONSTANT_ALPHA
:
124 case GL_ONE_MINUS_CONSTANT_ALPHA
:
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;
143 case GL_CONSTANT_COLOR
:
144 case GL_ONE_MINUS_CONSTANT_COLOR
:
145 case GL_CONSTANT_ALPHA
:
146 case GL_ONE_MINUS_CONSTANT_ALPHA
:
153 FALLBACK( imesa
, I810_FALLBACK_BLEND_FUNC
, 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
;
163 static void i810DepthFunc(GLcontext
*ctx
, GLenum func
)
165 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
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;
180 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
181 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_Z_MASK
;
182 imesa
->Setup
[I810_CTXREG_LCS
] |= zmode
;
185 static void i810DepthMask(GLcontext
*ctx
, GLboolean flag
)
187 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
188 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
191 imesa
->Setup
[I810_CTXREG_B2
] |= B2_ZB_WRITE_ENABLE
;
193 imesa
->Setup
[I810_CTXREG_B2
] &= ~B2_ZB_WRITE_ENABLE
;
197 /* =============================================================
200 * The i810 supports a 4x4 stipple natively, GL wants 32x32.
201 * Fortunately stipple is usually a repeating pattern.
203 static void i810PolygonStipple( GLcontext
*ctx
, const GLubyte
*mask
)
205 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
206 const GLubyte
*m
= mask
;
209 int active
= (ctx
->Polygon
.StippleFlag
&&
210 imesa
->reduced_primitive
== GL_TRIANGLES
);
214 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
215 imesa
->Setup
[I810_CTXREG_ST1
] &= ~ST1_ENABLE
;
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;
223 for (k
= 0 ; k
< 8 ; k
++)
224 for (j
= 0 ; j
< 4; j
++)
225 for (i
= 0 ; i
< 4 ; i
++)
227 imesa
->stipple_in_hw
= 0;
231 newMask
= ((p
[0] & 0xf) << 0) |
232 ((p
[1] & 0xf) << 4) |
233 ((p
[2] & 0xf) << 8) |
234 ((p
[3] & 0xf) << 12);
236 if (newMask
== 0xffff) {
237 /* this is needed to make conform pass */
238 imesa
->stipple_in_hw
= 0;
242 imesa
->Setup
[I810_CTXREG_ST1
] &= ~0xffff;
243 imesa
->Setup
[I810_CTXREG_ST1
] |= newMask
;
244 imesa
->stipple_in_hw
= 1;
247 imesa
->Setup
[I810_CTXREG_ST1
] |= ST1_ENABLE
;
252 /* =============================================================
257 static void i810Scissor( GLcontext
*ctx
, GLint x
, GLint y
,
258 GLsizei w
, GLsizei h
)
260 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
262 if (ctx
->Scissor
.Enabled
) {
263 I810_FIREVERTICES(imesa
); /* don't pipeline cliprect changes */
264 imesa
->upload_cliprects
= GL_TRUE
;
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
;
274 static void i810LogicOp( GLcontext
*ctx
, GLenum opcode
)
276 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
277 FALLBACK( imesa
, I810_FALLBACK_LOGICOP
,
278 (ctx
->Color
.ColorLogicOpEnabled
&& opcode
!= GL_COPY
) );
281 /* Fallback to swrast for select and feedback.
283 static void i810RenderMode( GLcontext
*ctx
, GLenum mode
)
285 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
286 FALLBACK( imesa
, I810_FALLBACK_RENDERMODE
, (mode
!= GL_RENDER
) );
290 void i810DrawBuffer(GLcontext
*ctx
, GLenum mode
)
292 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
296 * _DrawDestMask is easier to cope with than <mode>.
298 switch ( ctx
->DrawBuffer
->_ColorDrawBufferMask
[0]) {
299 case BUFFER_BIT_FRONT_LEFT
:
302 case BUFFER_BIT_BACK_LEFT
:
306 /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
307 FALLBACK( imesa
, I810_FALLBACK_DRAW_BUFFER
, GL_TRUE
);
311 if ( imesa
->sarea
->pf_current_page
== 1 )
314 FALLBACK( imesa
, I810_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
315 I810_FIREVERTICES(imesa
);
316 I810_STATECHANGE(imesa
, I810_UPLOAD_BUFFERS
);
320 imesa
->BufferSetup
[I810_DESTREG_DI1
] = (imesa
->i810Screen
->fbOffset
|
321 imesa
->i810Screen
->backPitchBits
);
322 i810XMesaSetFrontClipRects( imesa
);
326 imesa
->BufferSetup
[I810_DESTREG_DI1
] = (imesa
->i810Screen
->backOffset
|
327 imesa
->i810Screen
->backPitchBits
);
328 i810XMesaSetBackClipRects( imesa
);
333 static void i810ReadBuffer(GLcontext
*ctx
, GLenum mode
)
339 static void i810ClearColor(GLcontext
*ctx
, const GLfloat color
[4] )
341 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
343 CLAMPED_FLOAT_TO_UBYTE(c
[0], color
[0]);
344 CLAMPED_FLOAT_TO_UBYTE(c
[1], color
[1]);
345 CLAMPED_FLOAT_TO_UBYTE(c
[2], color
[2]);
346 CLAMPED_FLOAT_TO_UBYTE(c
[3], color
[3]);
347 imesa
->ClearColor
= i810PackColor( imesa
->i810Screen
->fbFormat
,
348 c
[0], c
[1], c
[2], c
[3] );
352 /* =============================================================
353 * Culling - the i810 isn't quite as clean here as the rest of
354 * its interfaces, but it's not bad.
356 static void i810CullFaceFrontFace(GLcontext
*ctx
, GLenum unused
)
358 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
359 GLuint mode
= LCS_CULL_BOTH
;
361 if (ctx
->Polygon
.CullFaceMode
!= GL_FRONT_AND_BACK
) {
363 if (ctx
->Polygon
.CullFaceMode
== GL_FRONT
)
364 mode
^= (LCS_CULL_CW
^ LCS_CULL_CCW
);
365 if (ctx
->Polygon
.FrontFace
!= GL_CCW
)
366 mode
^= (LCS_CULL_CW
^ LCS_CULL_CCW
);
369 imesa
->LcsCullMode
= mode
;
371 if (ctx
->Polygon
.CullFlag
)
373 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
374 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_CULL_MASK
;
375 imesa
->Setup
[I810_CTXREG_LCS
] |= mode
;
380 static void i810LineWidth( GLcontext
*ctx
, GLfloat widthf
)
382 i810ContextPtr imesa
= I810_CONTEXT( ctx
);
383 int width
= (int)ctx
->Line
._Width
;
385 imesa
->LcsLineWidth
= 0;
386 if (width
& 1) imesa
->LcsLineWidth
|= LCS_LINEWIDTH_1_0
;
387 if (width
& 2) imesa
->LcsLineWidth
|= LCS_LINEWIDTH_2_0
;
389 if (imesa
->reduced_primitive
== GL_LINES
) {
390 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
391 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_LINEWIDTH_3_0
;
392 imesa
->Setup
[I810_CTXREG_LCS
] |= imesa
->LcsLineWidth
;
396 static void i810PointSize( GLcontext
*ctx
, GLfloat sz
)
398 i810ContextPtr imesa
= I810_CONTEXT( ctx
);
399 int size
= (int)ctx
->Point
._Size
;
401 imesa
->LcsPointSize
= 0;
402 if (size
& 1) imesa
->LcsPointSize
|= LCS_LINEWIDTH_1_0
;
403 if (size
& 2) imesa
->LcsPointSize
|= LCS_LINEWIDTH_2_0
;
405 if (imesa
->reduced_primitive
== GL_POINTS
) {
406 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
407 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_LINEWIDTH_3_0
;
408 imesa
->Setup
[I810_CTXREG_LCS
] |= imesa
->LcsPointSize
;
412 /* =============================================================
416 static void i810ColorMask(GLcontext
*ctx
,
417 GLboolean r
, GLboolean g
,
418 GLboolean b
, GLboolean a
)
420 i810ContextPtr imesa
= I810_CONTEXT( ctx
);
424 tmp
= imesa
->Setup
[I810_CTXREG_B2
] | B2_FB_WRITE_ENABLE
;
425 FALLBACK( imesa
, I810_FALLBACK_COLORMASK
, GL_FALSE
);
426 } else if (!r
&& !g
&& !b
) {
427 tmp
= imesa
->Setup
[I810_CTXREG_B2
] & ~B2_FB_WRITE_ENABLE
;
428 FALLBACK( imesa
, I810_FALLBACK_COLORMASK
, GL_FALSE
);
430 FALLBACK( imesa
, I810_FALLBACK_COLORMASK
, GL_TRUE
);
434 if (tmp
!= imesa
->Setup
[I810_CTXREG_B2
]) {
435 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
436 imesa
->Setup
[I810_CTXREG_B2
] = tmp
;
437 imesa
->dirty
|= I810_UPLOAD_CTX
;
441 /* Seperate specular not fully implemented on the i810.
443 static void i810LightModelfv(GLcontext
*ctx
, GLenum pname
,
444 const GLfloat
*param
)
446 if (pname
== GL_LIGHT_MODEL_COLOR_CONTROL
)
448 i810ContextPtr imesa
= I810_CONTEXT( ctx
);
449 FALLBACK( imesa
, I810_FALLBACK_SPECULAR
,
450 (ctx
->Light
.Enabled
&&
451 ctx
->Light
.Model
.ColorControl
== GL_SEPARATE_SPECULAR_COLOR
));
455 /* But the 815 has it...
457 static void i810LightModelfv_i815(GLcontext
*ctx
, GLenum pname
,
458 const GLfloat
*param
)
460 if (pname
== GL_LIGHT_MODEL_COLOR_CONTROL
)
462 i810ContextPtr imesa
= I810_CONTEXT( ctx
);
464 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
465 if (ctx
->Light
.Model
.ColorControl
== GL_SEPARATE_SPECULAR_COLOR
)
466 imesa
->Setup
[I810_CTXREG_B1
] |= B1_SPEC_ENABLE
;
468 imesa
->Setup
[I810_CTXREG_B1
] &= ~B1_SPEC_ENABLE
;
472 /* In Mesa 3.5 we can reliably do native flatshading.
474 static void i810ShadeModel(GLcontext
*ctx
, GLenum mode
)
476 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
477 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
479 imesa
->Setup
[I810_CTXREG_LCS
] |= LCS_INTERP_FLAT
;
481 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_INTERP_FLAT
;
486 /* =============================================================
489 static void i810Fogfv(GLcontext
*ctx
, GLenum pname
, const GLfloat
*param
)
491 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
493 if (pname
== GL_FOG_COLOR
) {
494 GLuint color
= (((GLubyte
)(ctx
->Fog
.Color
[0]*255.0F
) << 16) |
495 ((GLubyte
)(ctx
->Fog
.Color
[1]*255.0F
) << 8) |
496 ((GLubyte
)(ctx
->Fog
.Color
[2]*255.0F
) << 0));
498 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
499 imesa
->Setup
[I810_CTXREG_FOG
] = ((GFX_OP_FOG_COLOR
| color
) &
505 /* =============================================================
507 static void i810Enable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
509 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
513 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
514 imesa
->Setup
[I810_CTXREG_B1
] &= ~B1_ALPHA_TEST_ENABLE
;
516 imesa
->Setup
[I810_CTXREG_B1
] |= B1_ALPHA_TEST_ENABLE
;
519 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
520 imesa
->Setup
[I810_CTXREG_B1
] &= ~B1_BLEND_ENABLE
;
522 imesa
->Setup
[I810_CTXREG_B1
] |= B1_BLEND_ENABLE
;
524 /* For some reason enable(GL_BLEND) affects ColorLogicOpEnabled.
526 FALLBACK( imesa
, I810_FALLBACK_LOGICOP
,
527 (ctx
->Color
.ColorLogicOpEnabled
&&
528 ctx
->Color
.LogicOp
!= GL_COPY
));
531 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
532 imesa
->Setup
[I810_CTXREG_B1
] &= ~B1_Z_TEST_ENABLE
;
534 imesa
->Setup
[I810_CTXREG_B1
] |= B1_Z_TEST_ENABLE
;
536 case GL_SCISSOR_TEST
:
537 /* XXX without these next two lines, conform's scissor test fails */
538 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
539 I810_STATECHANGE(imesa
, I810_UPLOAD_BUFFERS
);
540 I810_FIREVERTICES(imesa
); /* don't pipeline cliprect changes */
541 imesa
->upload_cliprects
= GL_TRUE
;
542 imesa
->scissor
= state
;
544 case GL_POLYGON_STIPPLE
:
545 if (imesa
->stipple_in_hw
&& imesa
->reduced_primitive
== GL_TRIANGLES
)
547 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
548 imesa
->Setup
[I810_CTXREG_ST1
] &= ~ST1_ENABLE
;
550 imesa
->Setup
[I810_CTXREG_ST1
] |= ST1_ENABLE
;
554 /* Need to fatten the lines by .5, or they disappear...
556 if (imesa
->reduced_primitive
== GL_LINES
) {
557 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
558 imesa
->Setup
[I810_CTXREG_AA
] &= ~AA_ENABLE
;
559 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_LINEWIDTH_0_5
;
561 imesa
->Setup
[I810_CTXREG_AA
] |= AA_ENABLE
;
562 imesa
->Setup
[I810_CTXREG_LCS
] |= LCS_LINEWIDTH_0_5
;
566 case GL_POINT_SMOOTH
:
567 if (imesa
->reduced_primitive
== GL_POINTS
) {
568 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
569 imesa
->Setup
[I810_CTXREG_AA
] &= ~AA_ENABLE
;
570 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_LINEWIDTH_0_5
;
572 imesa
->Setup
[I810_CTXREG_AA
] |= AA_ENABLE
;
573 imesa
->Setup
[I810_CTXREG_LCS
] |= LCS_LINEWIDTH_0_5
;
577 case GL_POLYGON_SMOOTH
:
578 if (imesa
->reduced_primitive
== GL_TRIANGLES
) {
579 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
580 imesa
->Setup
[I810_CTXREG_AA
] &= ~AA_ENABLE
;
582 imesa
->Setup
[I810_CTXREG_AA
] |= AA_ENABLE
;
586 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
587 imesa
->Setup
[I810_CTXREG_B1
] &= ~B1_FOG_ENABLE
;
589 imesa
->Setup
[I810_CTXREG_B1
] |= B1_FOG_ENABLE
;
592 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
593 imesa
->Setup
[I810_CTXREG_LCS
] &= ~LCS_CULL_MASK
;
595 imesa
->Setup
[I810_CTXREG_LCS
] |= imesa
->LcsCullMode
;
597 imesa
->Setup
[I810_CTXREG_LCS
] |= LCS_CULL_DISABLE
;
600 case GL_TEXTURE_RECTANGLE_NV
:
601 I810_STATECHANGE(imesa
, I810_UPLOAD_CTX
);
602 if (ctx
->Texture
.CurrentUnit
== 0) {
603 imesa
->Setup
[I810_CTXREG_MT
] &= ~MT_TEXEL0_ENABLE
;
605 imesa
->Setup
[I810_CTXREG_MT
] |= MT_TEXEL0_ENABLE
;
607 imesa
->Setup
[I810_CTXREG_MT
] &= ~MT_TEXEL1_ENABLE
;
609 imesa
->Setup
[I810_CTXREG_MT
] |= MT_TEXEL1_ENABLE
;
612 case GL_COLOR_LOGIC_OP
:
613 FALLBACK( imesa
, I810_FALLBACK_LOGICOP
,
614 (state
&& ctx
->Color
.LogicOp
!= GL_COPY
));
616 case GL_STENCIL_TEST
:
617 FALLBACK( imesa
, I810_FALLBACK_STENCIL
, state
);
630 /* =============================================================
636 void i810EmitDrawingRectangle( i810ContextPtr imesa
)
638 __DRIdrawablePrivate
*dPriv
= imesa
->driDrawable
;
639 i810ScreenPrivate
*i810Screen
= imesa
->i810Screen
;
640 int x0
= imesa
->drawX
;
641 int y0
= imesa
->drawY
;
642 int x1
= x0
+ dPriv
->w
;
643 int y1
= y0
+ dPriv
->h
;
644 GLuint dr2
, dr3
, dr4
;
647 /* Coordinate origin of the window - may be offscreen.
649 dr4
= imesa
->BufferSetup
[I810_DESTREG_DR4
] = ((y0
<<16) |
650 (((unsigned)x0
)&0xFFFF));
656 if (x1
> i810Screen
->width
-1) x1
= i810Screen
->width
-1;
657 if (y1
> i810Screen
->height
-1) y1
= i810Screen
->height
-1;
660 /* Onscreen drawing rectangle.
662 dr2
= imesa
->BufferSetup
[I810_DESTREG_DR2
] = ((y0
<<16) | x0
);
663 dr3
= imesa
->BufferSetup
[I810_DESTREG_DR3
] = (((y1
+1)<<16) | (x1
+1));
666 imesa
->dirty
|= I810_UPLOAD_BUFFERS
;
671 static void i810CalcViewport( GLcontext
*ctx
)
673 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
674 const GLfloat
*v
= ctx
->Viewport
._WindowMap
.m
;
675 GLfloat
*m
= imesa
->ViewportMatrix
.m
;
677 /* See also i810_translate_vertex. SUBPIXEL adjustments can be done
678 * via state vars, too.
680 m
[MAT_SX
] = v
[MAT_SX
];
681 m
[MAT_TX
] = v
[MAT_TX
] + SUBPIXEL_X
;
682 m
[MAT_SY
] = - v
[MAT_SY
];
683 m
[MAT_TY
] = - v
[MAT_TY
] + imesa
->driDrawable
->h
+ SUBPIXEL_Y
;
684 m
[MAT_SZ
] = v
[MAT_SZ
] * (1.0 / 0xffff);
685 m
[MAT_TZ
] = v
[MAT_TZ
] * (1.0 / 0xffff);
688 static void i810Viewport( GLcontext
*ctx
,
690 GLsizei width
, GLsizei height
)
692 i810CalcViewport( ctx
);
695 static void i810DepthRange( GLcontext
*ctx
,
696 GLclampd nearval
, GLclampd farval
)
698 i810CalcViewport( ctx
);
703 void i810PrintDirty( const char *msg
, GLuint state
)
705 fprintf(stderr
, "%s (0x%x): %s%s%s%s\n",
707 (unsigned int) state
,
708 (state
& I810_UPLOAD_TEX0
) ? "upload-tex0, " : "",
709 (state
& I810_UPLOAD_TEX1
) ? "upload-tex1, " : "",
710 (state
& I810_UPLOAD_CTX
) ? "upload-ctx, " : "",
711 (state
& I810_UPLOAD_BUFFERS
) ? "upload-bufs, " : ""
717 void i810InitState( GLcontext
*ctx
)
719 i810ContextPtr imesa
= I810_CONTEXT(ctx
);
720 i810ScreenPrivate
*i810Screen
= imesa
->i810Screen
;
722 memset(imesa
->Setup
, 0, sizeof(imesa
->Setup
));
724 imesa
->Setup
[I810_CTXREG_VF
] = 0;
726 imesa
->Setup
[I810_CTXREG_MT
] = (GFX_OP_MAP_TEXELS
|
727 MT_UPDATE_TEXEL1_STATE
|
731 MT_UPDATE_TEXEL0_STATE
|
736 imesa
->Setup
[I810_CTXREG_MC0
] = ( GFX_OP_MAP_COLOR_STAGES
|
741 ((MC_ARG_ITERATED_COLOR
|
742 MC_ARG_DONT_REPLICATE_ALPHA
|
743 MC_ARG_DONT_INVERT
) << MC_ARG1_SHIFT
) |
746 MC_ARG_DONT_REPLICATE_ALPHA
|
747 MC_ARG_DONT_INVERT
) << MC_ARG2_SHIFT
) |
751 imesa
->Setup
[I810_CTXREG_MC1
] = ( GFX_OP_MAP_COLOR_STAGES
|
757 MC_ARG_DONT_REPLICATE_ALPHA
|
758 MC_ARG_DONT_INVERT
) << MC_ARG1_SHIFT
) |
761 MC_ARG_DONT_REPLICATE_ALPHA
|
762 MC_ARG_DONT_INVERT
) << MC_ARG2_SHIFT
) |
767 imesa
->Setup
[I810_CTXREG_MC2
] = ( GFX_OP_MAP_COLOR_STAGES
|
772 ((MC_ARG_CURRENT_COLOR
|
773 MC_ARG_REPLICATE_ALPHA
|
774 MC_ARG_DONT_INVERT
) << MC_ARG1_SHIFT
) |
777 MC_ARG_DONT_REPLICATE_ALPHA
|
778 MC_ARG_DONT_INVERT
) << MC_ARG2_SHIFT
) |
783 imesa
->Setup
[I810_CTXREG_MA0
] = ( GFX_OP_MAP_ALPHA_STAGES
|
786 ((MA_ARG_ITERATED_ALPHA
|
787 MA_ARG_DONT_INVERT
) << MA_ARG1_SHIFT
) |
789 ((MA_ARG_CURRENT_ALPHA
|
790 MA_ARG_DONT_INVERT
) << MA_ARG2_SHIFT
) |
795 imesa
->Setup
[I810_CTXREG_MA1
] = ( GFX_OP_MAP_ALPHA_STAGES
|
798 ((MA_ARG_CURRENT_ALPHA
|
799 MA_ARG_DONT_INVERT
) << MA_ARG1_SHIFT
) |
801 ((MA_ARG_CURRENT_ALPHA
|
802 MA_ARG_DONT_INVERT
) << MA_ARG2_SHIFT
) |
807 imesa
->Setup
[I810_CTXREG_MA2
] = ( GFX_OP_MAP_ALPHA_STAGES
|
810 ((MA_ARG_CURRENT_ALPHA
|
811 MA_ARG_DONT_INVERT
) << MA_ARG1_SHIFT
) |
813 ((MA_ARG_CURRENT_ALPHA
|
814 MA_ARG_DONT_INVERT
) << MA_ARG2_SHIFT
) |
819 imesa
->Setup
[I810_CTXREG_SDM
] = ( GFX_OP_SRC_DEST_MONO
|
820 SDM_UPDATE_MONO_ENABLE
|
822 SDM_UPDATE_SRC_BLEND
|
824 SDM_UPDATE_DST_BLEND
|
827 /* Use for colormask:
829 imesa
->Setup
[I810_CTXREG_CF0
] = GFX_OP_COLOR_FACTOR
;
830 imesa
->Setup
[I810_CTXREG_CF1
] = 0xffffffff;
832 imesa
->Setup
[I810_CTXREG_ZA
] = (GFX_OP_ZBIAS_ALPHAFUNC
|
833 ZA_UPDATE_ALPHAFUNC
|
840 imesa
->Setup
[I810_CTXREG_FOG
] = (GFX_OP_FOG_COLOR
|
841 (0xffffff & ~FOG_RESERVED_MASK
));
845 imesa
->Setup
[I810_CTXREG_B1
] = ( GFX_OP_BOOL_1
|
846 B1_UPDATE_SPEC_SETUP_ENABLE
|
848 B1_UPDATE_ALPHA_SETUP_ENABLE
|
849 B1_ALPHA_SETUP_ENABLE
|
850 B1_UPDATE_CI_KEY_ENABLE
|
852 B1_UPDATE_CHROMAKEY_ENABLE
|
854 B1_UPDATE_Z_BIAS_ENABLE
|
856 B1_UPDATE_SPEC_ENABLE
|
858 B1_UPDATE_FOG_ENABLE
|
860 B1_UPDATE_ALPHA_TEST_ENABLE
|
862 B1_UPDATE_BLEND_ENABLE
|
864 B1_UPDATE_Z_TEST_ENABLE
|
867 imesa
->Setup
[I810_CTXREG_B2
] = ( GFX_OP_BOOL_2
|
868 B2_UPDATE_MAP_CACHE_ENABLE
|
869 B2_MAP_CACHE_ENABLE
|
870 B2_UPDATE_ALPHA_DITHER_ENABLE
|
872 B2_UPDATE_FOG_DITHER_ENABLE
|
874 B2_UPDATE_SPEC_DITHER_ENABLE
|
876 B2_UPDATE_RGB_DITHER_ENABLE
|
877 B2_RGB_DITHER_ENABLE
|
878 B2_UPDATE_FB_WRITE_ENABLE
|
880 B2_UPDATE_ZB_WRITE_ENABLE
|
881 B2_ZB_WRITE_ENABLE
);
883 imesa
->Setup
[I810_CTXREG_LCS
] = ( GFX_OP_LINEWIDTH_CULL_SHADE_MODE
|
886 LCS_UPDATE_LINEWIDTH
|
888 LCS_UPDATE_ALPHA_INTERP
|
890 LCS_UPDATE_FOG_INTERP
|
892 LCS_UPDATE_SPEC_INTERP
|
894 LCS_UPDATE_RGB_INTERP
|
896 LCS_UPDATE_CULL_MODE
|
899 imesa
->LcsCullMode
= LCS_CULL_CW
;
900 imesa
->LcsLineWidth
= LCS_LINEWIDTH_1_0
;
901 imesa
->LcsPointSize
= LCS_LINEWIDTH_1_0
;
903 imesa
->Setup
[I810_CTXREG_PV
] = ( GFX_OP_PV_RULE
|
914 imesa
->Setup
[I810_CTXREG_ST0
] = GFX_OP_STIPPLE
;
915 imesa
->Setup
[I810_CTXREG_ST1
] = 0;
917 imesa
->Setup
[I810_CTXREG_AA
] = ( GFX_OP_ANTIALIAS
|
920 AA_UPDATE_POLYWIDTH
|
922 AA_UPDATE_LINEWIDTH
|
924 AA_UPDATE_BB_EXPANSION
|
926 AA_UPDATE_AA_ENABLE
|
929 memset(imesa
->BufferSetup
, 0, sizeof(imesa
->BufferSetup
));
930 imesa
->BufferSetup
[I810_DESTREG_DI0
] = CMD_OP_DESTBUFFER_INFO
;
932 if (imesa
->glCtx
->Visual
.doubleBufferMode
&& imesa
->sarea
->pf_current_page
== 0) {
933 /* use back buffer by default */
934 imesa
->BufferSetup
[I810_DESTREG_DI1
] = (i810Screen
->backOffset
|
935 i810Screen
->backPitchBits
);
937 /* use front buffer by default */
938 imesa
->BufferSetup
[I810_DESTREG_DI1
] = (i810Screen
->fbOffset
|
939 i810Screen
->backPitchBits
);
942 imesa
->BufferSetup
[I810_DESTREG_DV0
] = GFX_OP_DESTBUFFER_VARS
;
943 imesa
->BufferSetup
[I810_DESTREG_DV1
] = (DV_HORG_BIAS_OGL
|
945 i810Screen
->fbFormat
);
947 imesa
->BufferSetup
[I810_DESTREG_DR0
] = GFX_OP_DRAWRECT_INFO
;
948 imesa
->BufferSetup
[I810_DESTREG_DR1
] = DR1_RECT_CLIP_ENABLE
;
952 static void i810InvalidateState( GLcontext
*ctx
, GLuint new_state
)
954 _swrast_InvalidateState( ctx
, new_state
);
955 _swsetup_InvalidateState( ctx
, new_state
);
956 _ac_InvalidateState( ctx
, new_state
);
957 _tnl_InvalidateState( ctx
, new_state
);
958 I810_CONTEXT(ctx
)->new_state
|= new_state
;
962 void i810InitStateFuncs(GLcontext
*ctx
)
964 /* Callbacks for internal Mesa events.
966 ctx
->Driver
.UpdateState
= i810InvalidateState
;
970 ctx
->Driver
.AlphaFunc
= i810AlphaFunc
;
971 ctx
->Driver
.BlendEquationSeparate
= i810BlendEquationSeparate
;
972 ctx
->Driver
.BlendFuncSeparate
= i810BlendFuncSeparate
;
973 ctx
->Driver
.ClearColor
= i810ClearColor
;
974 ctx
->Driver
.ColorMask
= i810ColorMask
;
975 ctx
->Driver
.CullFace
= i810CullFaceFrontFace
;
976 ctx
->Driver
.DepthFunc
= i810DepthFunc
;
977 ctx
->Driver
.DepthMask
= i810DepthMask
;
978 ctx
->Driver
.Enable
= i810Enable
;
979 ctx
->Driver
.Fogfv
= i810Fogfv
;
980 ctx
->Driver
.FrontFace
= i810CullFaceFrontFace
;
981 ctx
->Driver
.LineWidth
= i810LineWidth
;
982 ctx
->Driver
.LogicOpcode
= i810LogicOp
;
983 ctx
->Driver
.PolygonStipple
= i810PolygonStipple
;
984 ctx
->Driver
.RenderMode
= i810RenderMode
;
985 ctx
->Driver
.Scissor
= i810Scissor
;
986 ctx
->Driver
.DrawBuffer
= i810DrawBuffer
;
987 ctx
->Driver
.ReadBuffer
= i810ReadBuffer
;
988 ctx
->Driver
.ShadeModel
= i810ShadeModel
;
989 ctx
->Driver
.DepthRange
= i810DepthRange
;
990 ctx
->Driver
.Viewport
= i810Viewport
;
991 ctx
->Driver
.PointSize
= i810PointSize
;
993 if (IS_I815(I810_CONTEXT(ctx
))) {
994 ctx
->Driver
.LightModelfv
= i810LightModelfv_i815
;
996 ctx
->Driver
.LightModelfv
= i810LightModelfv
;
999 /* Pixel path fallbacks.
1001 ctx
->Driver
.Accum
= _swrast_Accum
;
1002 ctx
->Driver
.Bitmap
= _swrast_Bitmap
;
1003 ctx
->Driver
.CopyPixels
= _swrast_CopyPixels
;
1004 ctx
->Driver
.DrawPixels
= _swrast_DrawPixels
;
1005 ctx
->Driver
.ReadPixels
= _swrast_ReadPixels
;
1007 /* Swrast hooks for imaging extensions:
1009 ctx
->Driver
.CopyColorTable
= _swrast_CopyColorTable
;
1010 ctx
->Driver
.CopyColorSubTable
= _swrast_CopyColorSubTable
;
1011 ctx
->Driver
.CopyConvolutionFilter1D
= _swrast_CopyConvolutionFilter1D
;
1012 ctx
->Driver
.CopyConvolutionFilter2D
= _swrast_CopyConvolutionFilter2D
;