1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
35 #include "tnl/t_context.h"
39 #include "intel_fbo.h"
40 #include "intel_screen.h"
41 #include "intel_batchbuffer.h"
43 #include "i915_context.h"
46 #define FILE_DEBUG_FLAG DEBUG_STATE
49 i915StencilFuncSeparate(GLcontext
* ctx
, GLenum face
, GLenum func
, GLint ref
,
52 struct i915_context
*i915
= I915_CONTEXT(ctx
);
53 int test
= intel_translate_compare_func(func
);
57 DBG("%s : func: %s, ref : 0x%x, mask: 0x%x\n", __FUNCTION__
,
58 _mesa_lookup_enum_by_nr(func
), ref
, mask
);
61 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
62 i915
->state
.Ctx
[I915_CTXREG_STATE4
] &= ~MODE4_ENABLE_STENCIL_TEST_MASK
;
63 i915
->state
.Ctx
[I915_CTXREG_STATE4
] |= (ENABLE_STENCIL_TEST_MASK
|
64 STENCIL_TEST_MASK(mask
));
66 i915
->state
.Ctx
[I915_CTXREG_LIS5
] &= ~(S5_STENCIL_REF_MASK
|
67 S5_STENCIL_TEST_FUNC_MASK
);
69 i915
->state
.Ctx
[I915_CTXREG_LIS5
] |= ((ref
<< S5_STENCIL_REF_SHIFT
) |
71 S5_STENCIL_TEST_FUNC_SHIFT
));
75 i915StencilMaskSeparate(GLcontext
* ctx
, GLenum face
, GLuint mask
)
77 struct i915_context
*i915
= I915_CONTEXT(ctx
);
79 DBG("%s : mask 0x%x\n", __FUNCTION__
, mask
);
83 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
84 i915
->state
.Ctx
[I915_CTXREG_STATE4
] &= ~MODE4_ENABLE_STENCIL_WRITE_MASK
;
85 i915
->state
.Ctx
[I915_CTXREG_STATE4
] |= (ENABLE_STENCIL_WRITE_MASK
|
86 STENCIL_WRITE_MASK(mask
));
91 i915StencilOpSeparate(GLcontext
* ctx
, GLenum face
, GLenum fail
, GLenum zfail
,
94 struct i915_context
*i915
= I915_CONTEXT(ctx
);
95 int fop
= intel_translate_stencil_op(fail
);
96 int dfop
= intel_translate_stencil_op(zfail
);
97 int dpop
= intel_translate_stencil_op(zpass
);
100 DBG("%s: fail : %s, zfail: %s, zpass : %s\n", __FUNCTION__
,
101 _mesa_lookup_enum_by_nr(fail
),
102 _mesa_lookup_enum_by_nr(zfail
), _mesa_lookup_enum_by_nr(zpass
));
104 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
106 i915
->state
.Ctx
[I915_CTXREG_LIS5
] &= ~(S5_STENCIL_FAIL_MASK
|
107 S5_STENCIL_PASS_Z_FAIL_MASK
|
108 S5_STENCIL_PASS_Z_PASS_MASK
);
110 i915
->state
.Ctx
[I915_CTXREG_LIS5
] |= ((fop
<< S5_STENCIL_FAIL_SHIFT
) |
112 S5_STENCIL_PASS_Z_FAIL_SHIFT
) |
114 S5_STENCIL_PASS_Z_PASS_SHIFT
));
118 i915AlphaFunc(GLcontext
* ctx
, GLenum func
, GLfloat ref
)
120 struct i915_context
*i915
= I915_CONTEXT(ctx
);
121 int test
= intel_translate_compare_func(func
);
124 UNCLAMPED_FLOAT_TO_UBYTE(refByte
, ref
);
126 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
127 i915
->state
.Ctx
[I915_CTXREG_LIS6
] &= ~(S6_ALPHA_TEST_FUNC_MASK
|
129 i915
->state
.Ctx
[I915_CTXREG_LIS6
] |= ((test
<< S6_ALPHA_TEST_FUNC_SHIFT
) |
130 (((GLuint
) refByte
) <<
131 S6_ALPHA_REF_SHIFT
));
134 /* This function makes sure that the proper enables are
135 * set for LogicOp, Independant Alpha Blend, and Blending.
136 * It needs to be called from numerous places where we
137 * could change the LogicOp or Independant Alpha Blend without subsequent
141 i915EvalLogicOpBlendState(GLcontext
* ctx
)
143 struct i915_context
*i915
= I915_CONTEXT(ctx
);
145 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
147 if (RGBA_LOGICOP_ENABLED(ctx
)) {
148 i915
->state
.Ctx
[I915_CTXREG_LIS5
] |= S5_LOGICOP_ENABLE
;
149 i915
->state
.Ctx
[I915_CTXREG_LIS6
] &= ~S6_CBUF_BLEND_ENABLE
;
152 i915
->state
.Ctx
[I915_CTXREG_LIS5
] &= ~S5_LOGICOP_ENABLE
;
154 if (ctx
->Color
.BlendEnabled
) {
155 i915
->state
.Ctx
[I915_CTXREG_LIS6
] |= S6_CBUF_BLEND_ENABLE
;
158 i915
->state
.Ctx
[I915_CTXREG_LIS6
] &= ~S6_CBUF_BLEND_ENABLE
;
164 i915BlendColor(GLcontext
* ctx
, const GLfloat color
[4])
166 struct i915_context
*i915
= I915_CONTEXT(ctx
);
169 DBG("%s\n", __FUNCTION__
);
171 UNCLAMPED_FLOAT_TO_UBYTE(r
, color
[RCOMP
]);
172 UNCLAMPED_FLOAT_TO_UBYTE(g
, color
[GCOMP
]);
173 UNCLAMPED_FLOAT_TO_UBYTE(b
, color
[BCOMP
]);
174 UNCLAMPED_FLOAT_TO_UBYTE(a
, color
[ACOMP
]);
176 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
177 i915
->state
.Ctx
[I915_CTXREG_BLENDCOLOR1
] =
178 (a
<< 24) | (r
<< 16) | (g
<< 8) | b
;
182 #define DST_BLND_FACT(f) ((f)<<S6_CBUF_DST_BLEND_FACT_SHIFT)
183 #define SRC_BLND_FACT(f) ((f)<<S6_CBUF_SRC_BLEND_FACT_SHIFT)
184 #define DST_ABLND_FACT(f) ((f)<<IAB_DST_FACTOR_SHIFT)
185 #define SRC_ABLND_FACT(f) ((f)<<IAB_SRC_FACTOR_SHIFT)
190 translate_blend_equation(GLenum mode
)
194 return BLENDFUNC_ADD
;
196 return BLENDFUNC_MIN
;
198 return BLENDFUNC_MAX
;
199 case GL_FUNC_SUBTRACT
:
200 return BLENDFUNC_SUBTRACT
;
201 case GL_FUNC_REVERSE_SUBTRACT
:
202 return BLENDFUNC_REVERSE_SUBTRACT
;
209 i915UpdateBlendState(GLcontext
* ctx
)
211 struct i915_context
*i915
= I915_CONTEXT(ctx
);
212 GLuint iab
= (i915
->state
.Ctx
[I915_CTXREG_IAB
] &
213 ~(IAB_SRC_FACTOR_MASK
|
214 IAB_DST_FACTOR_MASK
|
215 (BLENDFUNC_MASK
<< IAB_FUNC_SHIFT
) | IAB_ENABLE
));
217 GLuint lis6
= (i915
->state
.Ctx
[I915_CTXREG_LIS6
] &
218 ~(S6_CBUF_SRC_BLEND_FACT_MASK
|
219 S6_CBUF_DST_BLEND_FACT_MASK
| S6_CBUF_BLEND_FUNC_MASK
));
221 GLuint eqRGB
= ctx
->Color
.BlendEquationRGB
;
222 GLuint eqA
= ctx
->Color
.BlendEquationA
;
223 GLuint srcRGB
= ctx
->Color
.BlendSrcRGB
;
224 GLuint dstRGB
= ctx
->Color
.BlendDstRGB
;
225 GLuint srcA
= ctx
->Color
.BlendSrcA
;
226 GLuint dstA
= ctx
->Color
.BlendDstA
;
228 if (eqRGB
== GL_MIN
|| eqRGB
== GL_MAX
) {
229 srcRGB
= dstRGB
= GL_ONE
;
232 if (eqA
== GL_MIN
|| eqA
== GL_MAX
) {
233 srcA
= dstA
= GL_ONE
;
236 lis6
|= SRC_BLND_FACT(intel_translate_blend_factor(srcRGB
));
237 lis6
|= DST_BLND_FACT(intel_translate_blend_factor(dstRGB
));
238 lis6
|= translate_blend_equation(eqRGB
) << S6_CBUF_BLEND_FUNC_SHIFT
;
240 iab
|= SRC_ABLND_FACT(intel_translate_blend_factor(srcA
));
241 iab
|= DST_ABLND_FACT(intel_translate_blend_factor(dstA
));
242 iab
|= translate_blend_equation(eqA
) << IAB_FUNC_SHIFT
;
244 if (srcA
!= srcRGB
|| dstA
!= dstRGB
|| eqA
!= eqRGB
)
247 if (iab
!= i915
->state
.Ctx
[I915_CTXREG_IAB
] ||
248 lis6
!= i915
->state
.Ctx
[I915_CTXREG_LIS6
]) {
249 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
250 i915
->state
.Ctx
[I915_CTXREG_IAB
] = iab
;
251 i915
->state
.Ctx
[I915_CTXREG_LIS6
] = lis6
;
254 /* This will catch a logicop blend equation */
255 i915EvalLogicOpBlendState(ctx
);
260 i915BlendFuncSeparate(GLcontext
* ctx
, GLenum srcRGB
,
261 GLenum dstRGB
, GLenum srcA
, GLenum dstA
)
263 i915UpdateBlendState(ctx
);
268 i915BlendEquationSeparate(GLcontext
* ctx
, GLenum eqRGB
, GLenum eqA
)
270 i915UpdateBlendState(ctx
);
275 i915DepthFunc(GLcontext
* ctx
, GLenum func
)
277 struct i915_context
*i915
= I915_CONTEXT(ctx
);
278 int test
= intel_translate_compare_func(func
);
280 DBG("%s\n", __FUNCTION__
);
282 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
283 i915
->state
.Ctx
[I915_CTXREG_LIS6
] &= ~S6_DEPTH_TEST_FUNC_MASK
;
284 i915
->state
.Ctx
[I915_CTXREG_LIS6
] |= test
<< S6_DEPTH_TEST_FUNC_SHIFT
;
288 i915DepthMask(GLcontext
* ctx
, GLboolean flag
)
290 struct i915_context
*i915
= I915_CONTEXT(ctx
);
292 DBG("%s flag (%d)\n", __FUNCTION__
, flag
);
294 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
296 if (flag
&& ctx
->Depth
.Test
)
297 i915
->state
.Ctx
[I915_CTXREG_LIS6
] |= S6_DEPTH_WRITE_ENABLE
;
299 i915
->state
.Ctx
[I915_CTXREG_LIS6
] &= ~S6_DEPTH_WRITE_ENABLE
;
302 /* =============================================================
305 * The i915 supports a 4x4 stipple natively, GL wants 32x32.
306 * Fortunately stipple is usually a repeating pattern.
309 i915PolygonStipple(GLcontext
* ctx
, const GLubyte
* mask
)
311 struct i915_context
*i915
= I915_CONTEXT(ctx
);
312 const GLubyte
*m
= mask
;
315 int active
= (ctx
->Polygon
.StippleFlag
&&
316 i915
->intel
.reduced_primitive
== GL_TRIANGLES
);
320 I915_STATECHANGE(i915
, I915_UPLOAD_STIPPLE
);
321 i915
->state
.Stipple
[I915_STPREG_ST1
] &= ~ST1_ENABLE
;
324 p
[0] = mask
[12] & 0xf;
326 p
[1] = mask
[8] & 0xf;
328 p
[2] = mask
[4] & 0xf;
330 p
[3] = mask
[0] & 0xf;
333 for (k
= 0; k
< 8; k
++)
334 for (j
= 3; j
>= 0; j
--)
335 for (i
= 0; i
< 4; i
++, m
++)
337 i915
->intel
.hw_stipple
= 0;
341 newMask
= (((p
[0] & 0xf) << 0) |
342 ((p
[1] & 0xf) << 4) |
343 ((p
[2] & 0xf) << 8) | ((p
[3] & 0xf) << 12));
346 if (newMask
== 0xffff || newMask
== 0x0) {
347 /* this is needed to make conform pass */
348 i915
->intel
.hw_stipple
= 0;
352 i915
->state
.Stipple
[I915_STPREG_ST1
] &= ~0xffff;
353 i915
->state
.Stipple
[I915_STPREG_ST1
] |= newMask
;
354 i915
->intel
.hw_stipple
= 1;
357 i915
->state
.Stipple
[I915_STPREG_ST1
] |= ST1_ENABLE
;
361 /* =============================================================
365 i915Scissor(GLcontext
* ctx
, GLint x
, GLint y
, GLsizei w
, GLsizei h
)
367 struct i915_context
*i915
= I915_CONTEXT(ctx
);
370 if (!ctx
->DrawBuffer
)
373 DBG("%s %d,%d %dx%d\n", __FUNCTION__
, x
, y
, w
, h
);
375 if (ctx
->DrawBuffer
->Name
== 0) {
377 y1
= ctx
->DrawBuffer
->Height
- (y
+ h
);
380 DBG("%s %d..%d,%d..%d (inverted)\n", __FUNCTION__
, x1
, x2
, y1
, y2
);
383 /* FBO - not inverted
389 DBG("%s %d..%d,%d..%d (not inverted)\n", __FUNCTION__
, x1
, x2
, y1
, y2
);
392 x1
= CLAMP(x1
, 0, ctx
->DrawBuffer
->Width
- 1);
393 y1
= CLAMP(y1
, 0, ctx
->DrawBuffer
->Height
- 1);
394 x2
= CLAMP(x2
, 0, ctx
->DrawBuffer
->Width
- 1);
395 y2
= CLAMP(y2
, 0, ctx
->DrawBuffer
->Height
- 1);
397 DBG("%s %d..%d,%d..%d (clamped)\n", __FUNCTION__
, x1
, x2
, y1
, y2
);
399 I915_STATECHANGE(i915
, I915_UPLOAD_BUFFERS
);
400 i915
->state
.Buffer
[I915_DESTREG_SR1
] = (y1
<< 16) | (x1
& 0xffff);
401 i915
->state
.Buffer
[I915_DESTREG_SR2
] = (y2
<< 16) | (x2
& 0xffff);
405 i915LogicOp(GLcontext
* ctx
, GLenum opcode
)
407 struct i915_context
*i915
= I915_CONTEXT(ctx
);
408 int tmp
= intel_translate_logic_op(opcode
);
410 DBG("%s\n", __FUNCTION__
);
412 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
413 i915
->state
.Ctx
[I915_CTXREG_STATE4
] &= ~LOGICOP_MASK
;
414 i915
->state
.Ctx
[I915_CTXREG_STATE4
] |= LOGIC_OP_FUNC(tmp
);
420 i915CullFaceFrontFace(GLcontext
* ctx
, GLenum unused
)
422 struct i915_context
*i915
= I915_CONTEXT(ctx
);
425 DBG("%s %d\n", __FUNCTION__
,
426 ctx
->DrawBuffer
? ctx
->DrawBuffer
->Name
: 0);
428 if (!ctx
->Polygon
.CullFlag
) {
429 mode
= S4_CULLMODE_NONE
;
431 else if (ctx
->Polygon
.CullFaceMode
!= GL_FRONT_AND_BACK
) {
432 mode
= S4_CULLMODE_CW
;
434 if (ctx
->DrawBuffer
&& ctx
->DrawBuffer
->Name
!= 0)
435 mode
^= (S4_CULLMODE_CW
^ S4_CULLMODE_CCW
);
436 if (ctx
->Polygon
.CullFaceMode
== GL_FRONT
)
437 mode
^= (S4_CULLMODE_CW
^ S4_CULLMODE_CCW
);
438 if (ctx
->Polygon
.FrontFace
!= GL_CCW
)
439 mode
^= (S4_CULLMODE_CW
^ S4_CULLMODE_CCW
);
442 mode
= S4_CULLMODE_BOTH
;
445 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
446 i915
->state
.Ctx
[I915_CTXREG_LIS4
] &= ~S4_CULLMODE_MASK
;
447 i915
->state
.Ctx
[I915_CTXREG_LIS4
] |= mode
;
451 i915LineWidth(GLcontext
* ctx
, GLfloat widthf
)
453 struct i915_context
*i915
= I915_CONTEXT(ctx
);
454 int lis4
= i915
->state
.Ctx
[I915_CTXREG_LIS4
] & ~S4_LINE_WIDTH_MASK
;
457 DBG("%s\n", __FUNCTION__
);
459 width
= (int) (widthf
* 2);
460 CLAMP_SELF(width
, 1, 0xf);
461 lis4
|= width
<< S4_LINE_WIDTH_SHIFT
;
463 if (lis4
!= i915
->state
.Ctx
[I915_CTXREG_LIS4
]) {
464 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
465 i915
->state
.Ctx
[I915_CTXREG_LIS4
] = lis4
;
470 i915PointSize(GLcontext
* ctx
, GLfloat size
)
472 struct i915_context
*i915
= I915_CONTEXT(ctx
);
473 int lis4
= i915
->state
.Ctx
[I915_CTXREG_LIS4
] & ~S4_POINT_WIDTH_MASK
;
474 GLint point_size
= (int) size
;
476 DBG("%s\n", __FUNCTION__
);
478 CLAMP_SELF(point_size
, 1, 255);
479 lis4
|= point_size
<< S4_POINT_WIDTH_SHIFT
;
481 if (lis4
!= i915
->state
.Ctx
[I915_CTXREG_LIS4
]) {
482 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
483 i915
->state
.Ctx
[I915_CTXREG_LIS4
] = lis4
;
488 /* =============================================================
493 i915ColorMask(GLcontext
* ctx
,
494 GLboolean r
, GLboolean g
, GLboolean b
, GLboolean a
)
496 struct i915_context
*i915
= I915_CONTEXT(ctx
);
497 GLuint tmp
= i915
->state
.Ctx
[I915_CTXREG_LIS5
] & ~S5_WRITEDISABLE_MASK
;
499 DBG("%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__
, r
, g
, b
,
503 tmp
|= S5_WRITEDISABLE_RED
;
505 tmp
|= S5_WRITEDISABLE_GREEN
;
507 tmp
|= S5_WRITEDISABLE_BLUE
;
509 tmp
|= S5_WRITEDISABLE_ALPHA
;
511 if (tmp
!= i915
->state
.Ctx
[I915_CTXREG_LIS5
]) {
512 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
513 i915
->state
.Ctx
[I915_CTXREG_LIS5
] = tmp
;
518 update_specular(GLcontext
* ctx
)
520 /* A hack to trigger the rebuild of the fragment program.
522 intel_context(ctx
)->NewGLState
|= _NEW_TEXTURE
;
526 i915LightModelfv(GLcontext
* ctx
, GLenum pname
, const GLfloat
* param
)
528 DBG("%s\n", __FUNCTION__
);
530 if (pname
== GL_LIGHT_MODEL_COLOR_CONTROL
) {
531 update_specular(ctx
);
536 i915ShadeModel(GLcontext
* ctx
, GLenum mode
)
538 struct i915_context
*i915
= I915_CONTEXT(ctx
);
539 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
541 if (mode
== GL_SMOOTH
) {
542 i915
->state
.Ctx
[I915_CTXREG_LIS4
] &= ~(S4_FLATSHADE_ALPHA
|
544 S4_FLATSHADE_SPECULAR
);
547 i915
->state
.Ctx
[I915_CTXREG_LIS4
] |= (S4_FLATSHADE_ALPHA
|
549 S4_FLATSHADE_SPECULAR
);
553 /* =============================================================
557 i915_update_fog(GLcontext
* ctx
)
559 struct i915_context
*i915
= I915_CONTEXT(ctx
);
562 GLboolean try_pixel_fog
;
564 if (ctx
->FragmentProgram
._Active
) {
565 /* Pull in static fog state from program */
567 mode
= ctx
->FragmentProgram
._Current
->FogOption
;
568 enabled
= (mode
!= GL_NONE
);
572 enabled
= ctx
->Fog
.Enabled
;
573 mode
= ctx
->Fog
.Mode
;
575 try_pixel_fog
= (ctx
->Fog
.FogCoordinateSource
== GL_FRAGMENT_DEPTH_EXT
&& ctx
->Hint
.Fog
== GL_NICEST
&& 0); /* XXX - DISABLE -- Need ortho fallback */
579 i915
->vertex_fog
= I915_FOG_NONE
;
581 else if (try_pixel_fog
) {
583 I915_STATECHANGE(i915
, I915_UPLOAD_FOG
);
584 i915
->state
.Fog
[I915_FOGREG_MODE1
] &= ~FMC1_FOGFUNC_MASK
;
585 i915
->vertex_fog
= I915_FOG_PIXEL
;
589 if (ctx
->Fog
.End
<= ctx
->Fog
.Start
) {
590 /* XXX - this won't work with fragment programs. Need to
591 * either fallback or append fog instructions to end of
592 * program in the case of linear fog.
594 i915
->state
.Fog
[I915_FOGREG_MODE1
] |= FMC1_FOGFUNC_VERTEX
;
595 i915
->vertex_fog
= I915_FOG_VERTEX
;
598 GLfloat c1
= ctx
->Fog
.End
/ (ctx
->Fog
.End
- ctx
->Fog
.Start
);
599 GLfloat c2
= 1.0 / (ctx
->Fog
.End
- ctx
->Fog
.Start
);
601 i915
->state
.Fog
[I915_FOGREG_MODE1
] &= ~FMC1_C1_MASK
;
602 i915
->state
.Fog
[I915_FOGREG_MODE1
] |= FMC1_FOGFUNC_PIXEL_LINEAR
;
603 i915
->state
.Fog
[I915_FOGREG_MODE1
] |=
604 ((GLuint
) (c1
* FMC1_C1_ONE
)) & FMC1_C1_MASK
;
606 if (i915
->state
.Fog
[I915_FOGREG_MODE1
] & FMC1_FOGINDEX_Z
) {
607 i915
->state
.Fog
[I915_FOGREG_MODE2
] =
608 (GLuint
) (c2
* FMC2_C2_ONE
);
617 i915
->state
.Fog
[I915_FOGREG_MODE2
] = fi
.i
;
622 i915
->state
.Fog
[I915_FOGREG_MODE1
] |= FMC1_FOGFUNC_PIXEL_EXP
;
625 i915
->state
.Fog
[I915_FOGREG_MODE1
] |= FMC1_FOGFUNC_PIXEL_EXP2
;
631 else { /* if (i915->vertex_fog != I915_FOG_VERTEX) */
633 I915_STATECHANGE(i915
, I915_UPLOAD_FOG
);
634 i915
->state
.Fog
[I915_FOGREG_MODE1
] &= ~FMC1_FOGFUNC_MASK
;
635 i915
->state
.Fog
[I915_FOGREG_MODE1
] |= FMC1_FOGFUNC_VERTEX
;
636 i915
->vertex_fog
= I915_FOG_VERTEX
;
640 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
641 I915_ACTIVESTATE(i915
, I915_UPLOAD_FOG
, enabled
);
643 i915
->state
.Ctx
[I915_CTXREG_LIS5
] |= S5_FOG_ENABLE
;
645 i915
->state
.Ctx
[I915_CTXREG_LIS5
] &= ~S5_FOG_ENABLE
;
648 /* always enbale pixel fog
649 * vertex fog use precaculted fog coord will conflict with appended
652 _tnl_allow_vertex_fog( ctx
, 0 );
653 _tnl_allow_pixel_fog( ctx
, 1 );
657 i915Fogfv(GLcontext
* ctx
, GLenum pname
, const GLfloat
* param
)
659 struct i915_context
*i915
= I915_CONTEXT(ctx
);
662 case GL_FOG_COORDINATE_SOURCE_EXT
:
669 I915_STATECHANGE(i915
, I915_UPLOAD_FOG
);
671 if (i915
->state
.Fog
[I915_FOGREG_MODE1
] & FMC1_FOGINDEX_Z
) {
672 i915
->state
.Fog
[I915_FOGREG_MODE3
] = (GLuint
) (ctx
->Fog
.Density
*
681 fi
.f
= ctx
->Fog
.Density
;
682 i915
->state
.Fog
[I915_FOGREG_MODE3
] = fi
.i
;
687 I915_STATECHANGE(i915
, I915_UPLOAD_FOG
);
688 i915
->state
.Fog
[I915_FOGREG_COLOR
] =
689 (_3DSTATE_FOG_COLOR_CMD
|
690 ((GLubyte
) (ctx
->Fog
.Color
[0] * 255.0F
) << 16) |
691 ((GLubyte
) (ctx
->Fog
.Color
[1] * 255.0F
) << 8) |
692 ((GLubyte
) (ctx
->Fog
.Color
[2] * 255.0F
) << 0));
701 i915Hint(GLcontext
* ctx
, GLenum target
, GLenum state
)
711 /* =============================================================
715 i915Enable(GLcontext
* ctx
, GLenum cap
, GLboolean state
)
717 struct i915_context
*i915
= I915_CONTEXT(ctx
);
725 update_specular(ctx
);
729 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
731 i915
->state
.Ctx
[I915_CTXREG_LIS6
] |= S6_ALPHA_TEST_ENABLE
;
733 i915
->state
.Ctx
[I915_CTXREG_LIS6
] &= ~S6_ALPHA_TEST_ENABLE
;
737 i915EvalLogicOpBlendState(ctx
);
740 case GL_COLOR_LOGIC_OP
:
741 i915EvalLogicOpBlendState(ctx
);
743 /* Logicop doesn't seem to work at 16bpp:
745 if (i915
->intel
.intelScreen
->cpp
== 2) /* XXX FBO fix */
746 FALLBACK(&i915
->intel
, I915_FALLBACK_LOGICOP
, state
);
749 case GL_FRAGMENT_PROGRAM_ARB
:
753 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
755 i915
->state
.Ctx
[I915_CTXREG_LIS5
] |= S5_COLOR_DITHER_ENABLE
;
757 i915
->state
.Ctx
[I915_CTXREG_LIS5
] &= ~S5_COLOR_DITHER_ENABLE
;
761 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
763 i915
->state
.Ctx
[I915_CTXREG_LIS6
] |= S6_DEPTH_TEST_ENABLE
;
765 i915
->state
.Ctx
[I915_CTXREG_LIS6
] &= ~S6_DEPTH_TEST_ENABLE
;
767 i915DepthMask(ctx
, ctx
->Depth
.Mask
);
770 case GL_SCISSOR_TEST
:
771 I915_STATECHANGE(i915
, I915_UPLOAD_BUFFERS
);
773 i915
->state
.Buffer
[I915_DESTREG_SENABLE
] =
774 (_3DSTATE_SCISSOR_ENABLE_CMD
| ENABLE_SCISSOR_RECT
);
776 i915
->state
.Buffer
[I915_DESTREG_SENABLE
] =
777 (_3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
);
781 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
783 i915
->state
.Ctx
[I915_CTXREG_LIS4
] |= S4_LINE_ANTIALIAS_ENABLE
;
785 i915
->state
.Ctx
[I915_CTXREG_LIS4
] &= ~S4_LINE_ANTIALIAS_ENABLE
;
792 i915CullFaceFrontFace(ctx
, 0);
795 case GL_STENCIL_TEST
:
797 GLboolean hw_stencil
= GL_FALSE
;
798 if (ctx
->DrawBuffer
) {
799 struct intel_renderbuffer
*irbStencil
800 = intel_get_renderbuffer(ctx
->DrawBuffer
, BUFFER_STENCIL
);
801 hw_stencil
= (irbStencil
&& irbStencil
->region
);
804 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
806 i915
->state
.Ctx
[I915_CTXREG_LIS5
] |= (S5_STENCIL_TEST_ENABLE
|
807 S5_STENCIL_WRITE_ENABLE
);
809 i915
->state
.Ctx
[I915_CTXREG_LIS5
] &= ~(S5_STENCIL_TEST_ENABLE
|
810 S5_STENCIL_WRITE_ENABLE
);
813 FALLBACK(&i915
->intel
, I915_FALLBACK_STENCIL
, state
);
818 case GL_POLYGON_STIPPLE
:
819 /* The stipple command worked on my 855GM box, but not my 845G.
820 * I'll do more testing later to find out exactly which hardware
821 * supports it. Disabled for now.
823 if (i915
->intel
.hw_stipple
&&
824 i915
->intel
.reduced_primitive
== GL_TRIANGLES
) {
825 I915_STATECHANGE(i915
, I915_UPLOAD_STIPPLE
);
827 i915
->state
.Stipple
[I915_STPREG_ST1
] |= ST1_ENABLE
;
829 i915
->state
.Stipple
[I915_STPREG_ST1
] &= ~ST1_ENABLE
;
833 case GL_POLYGON_SMOOTH
:
836 case GL_POINT_SMOOTH
:
846 i915_init_packets(struct i915_context
*i915
)
848 intelScreenPrivate
*screen
= i915
->intel
.intelScreen
;
851 memset(&i915
->state
, 0, sizeof(i915
->state
));
855 I915_STATECHANGE(i915
, I915_UPLOAD_CTX
);
856 /* Probably don't want to upload all this stuff every time one
859 i915
->state
.Ctx
[I915_CTXREG_LI
] = (_3DSTATE_LOAD_STATE_IMMEDIATE_1
|
862 I1_LOAD_S(5) | I1_LOAD_S(6) | (4));
863 i915
->state
.Ctx
[I915_CTXREG_LIS2
] = 0;
864 i915
->state
.Ctx
[I915_CTXREG_LIS4
] = 0;
865 i915
->state
.Ctx
[I915_CTXREG_LIS5
] = 0;
867 if (screen
->cpp
== 2) /* XXX FBO fix */
868 i915
->state
.Ctx
[I915_CTXREG_LIS5
] |= S5_COLOR_DITHER_ENABLE
;
871 i915
->state
.Ctx
[I915_CTXREG_LIS6
] = (S6_COLOR_WRITE_ENABLE
|
872 (2 << S6_TRISTRIP_PV_SHIFT
));
874 i915
->state
.Ctx
[I915_CTXREG_STATE4
] = (_3DSTATE_MODES_4_CMD
|
875 ENABLE_LOGIC_OP_FUNC
|
876 LOGIC_OP_FUNC(LOGICOP_COPY
) |
877 ENABLE_STENCIL_TEST_MASK
|
878 STENCIL_TEST_MASK(0xff) |
879 ENABLE_STENCIL_WRITE_MASK
|
880 STENCIL_WRITE_MASK(0xff));
882 i915
->state
.Ctx
[I915_CTXREG_IAB
] =
883 (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD
| IAB_MODIFY_ENABLE
|
884 IAB_MODIFY_FUNC
| IAB_MODIFY_SRC_FACTOR
| IAB_MODIFY_DST_FACTOR
);
886 i915
->state
.Ctx
[I915_CTXREG_BLENDCOLOR0
] =
887 _3DSTATE_CONST_BLEND_COLOR_CMD
;
888 i915
->state
.Ctx
[I915_CTXREG_BLENDCOLOR1
] = 0;
893 I915_STATECHANGE(i915
, I915_UPLOAD_STIPPLE
);
894 i915
->state
.Stipple
[I915_STPREG_ST0
] = _3DSTATE_STIPPLE
;
899 I915_STATECHANGE(i915
, I915_UPLOAD_FOG
);
900 i915
->state
.Fog
[I915_FOGREG_MODE0
] = _3DSTATE_FOG_MODE_CMD
;
901 i915
->state
.Fog
[I915_FOGREG_MODE1
] = (FMC1_FOGFUNC_MODIFY_ENABLE
|
902 FMC1_FOGFUNC_VERTEX
|
903 FMC1_FOGINDEX_MODIFY_ENABLE
|
905 FMC1_C1_C2_MODIFY_ENABLE
|
906 FMC1_DENSITY_MODIFY_ENABLE
);
907 i915
->state
.Fog
[I915_FOGREG_COLOR
] = _3DSTATE_FOG_COLOR_CMD
;
912 I915_STATECHANGE(i915
, I915_UPLOAD_BUFFERS
);
913 /* color buffer offset/stride */
914 i915
->state
.Buffer
[I915_DESTREG_CBUFADDR0
] = _3DSTATE_BUF_INFO_CMD
;
915 /* XXX FBO: remove this? Also get set in i915_set_draw_region() */
916 i915
->state
.Buffer
[I915_DESTREG_CBUFADDR1
] = (BUF_3D_ID_COLOR_BACK
| BUF_3D_PITCH(screen
->front
.pitch
) | /* pitch in bytes */
919 i915
->state
.Buffer
[I915_DESTREG_DBUFADDR0
] = _3DSTATE_BUF_INFO_CMD
;
920 /* XXX FBO: remove this? Also get set in i915_set_draw_region() */
921 i915
->state
.Buffer
[I915_DESTREG_DBUFADDR1
] = (BUF_3D_ID_DEPTH
| BUF_3D_PITCH(screen
->depth
.pitch
) | /* pitch in bytes */
924 i915
->state
.Buffer
[I915_DESTREG_DV0
] = _3DSTATE_DST_BUF_VARS_CMD
;
926 /* XXX FBO: remove this? Also get set in i915_set_draw_region() */
927 #if 0 /* seems we don't need this */
928 switch (screen
->fbFormat
) {
930 i915
->state
.Buffer
[I915_DESTREG_DV1
] = (DSTORG_HORT_BIAS(0x8) | /* .5 */
931 DSTORG_VERT_BIAS(0x8) | /* .5 */
933 TEX_DEFAULT_COLOR_OGL
|
936 DEPTH_FRMT_16_FIXED
);
939 i915
->state
.Buffer
[I915_DESTREG_DV1
] = (DSTORG_HORT_BIAS(0x8) | /* .5 */
940 DSTORG_VERT_BIAS(0x8) | /* .5 */
942 TEX_DEFAULT_COLOR_OGL
|
944 DEPTH_FRMT_24_FIXED_8_OTHER
);
951 i915
->state
.Buffer
[I915_DESTREG_SENABLE
] =
952 (_3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
);
953 i915
->state
.Buffer
[I915_DESTREG_SR0
] = _3DSTATE_SCISSOR_RECT_0_CMD
;
954 i915
->state
.Buffer
[I915_DESTREG_SR1
] = 0;
955 i915
->state
.Buffer
[I915_DESTREG_SR2
] = 0;
961 I915_STATECHANGE(i915
, I915_UPLOAD_DEFAULTS
);
962 i915
->state
.Default
[I915_DEFREG_C0
] = _3DSTATE_DEFAULT_DIFFUSE
;
963 i915
->state
.Default
[I915_DEFREG_C1
] = 0;
964 i915
->state
.Default
[I915_DEFREG_S0
] = _3DSTATE_DEFAULT_SPECULAR
;
965 i915
->state
.Default
[I915_DEFREG_S1
] = 0;
966 i915
->state
.Default
[I915_DEFREG_Z0
] = _3DSTATE_DEFAULT_Z
;
967 i915
->state
.Default
[I915_DEFREG_Z1
] = 0;
972 /* These will be emitted every at the head of every buffer, unless
973 * we get hardware contexts working.
975 i915
->state
.active
= (I915_UPLOAD_PROGRAM
|
976 I915_UPLOAD_STIPPLE
|
978 I915_UPLOAD_BUFFERS
| I915_UPLOAD_INVARIENT
);
982 i915InitStateFunctions(struct dd_function_table
*functions
)
984 functions
->AlphaFunc
= i915AlphaFunc
;
985 functions
->BlendColor
= i915BlendColor
;
986 functions
->BlendEquationSeparate
= i915BlendEquationSeparate
;
987 functions
->BlendFuncSeparate
= i915BlendFuncSeparate
;
988 functions
->ColorMask
= i915ColorMask
;
989 functions
->CullFace
= i915CullFaceFrontFace
;
990 functions
->DepthFunc
= i915DepthFunc
;
991 functions
->DepthMask
= i915DepthMask
;
992 functions
->Enable
= i915Enable
;
993 functions
->Fogfv
= i915Fogfv
;
994 functions
->FrontFace
= i915CullFaceFrontFace
;
995 functions
->Hint
= i915Hint
;
996 functions
->LightModelfv
= i915LightModelfv
;
997 functions
->LineWidth
= i915LineWidth
;
998 functions
->LogicOpcode
= i915LogicOp
;
999 functions
->PointSize
= i915PointSize
;
1000 functions
->PolygonStipple
= i915PolygonStipple
;
1001 functions
->Scissor
= i915Scissor
;
1002 functions
->ShadeModel
= i915ShadeModel
;
1003 functions
->StencilFuncSeparate
= i915StencilFuncSeparate
;
1004 functions
->StencilMaskSeparate
= i915StencilMaskSeparate
;
1005 functions
->StencilOpSeparate
= i915StencilOpSeparate
;
1010 i915InitState(struct i915_context
*i915
)
1012 GLcontext
*ctx
= &i915
->intel
.ctx
;
1014 i915_init_packets(i915
);
1016 intelInitState(ctx
);
1018 memcpy(&i915
->initial
, &i915
->state
, sizeof(i915
->state
));
1019 i915
->current
= &i915
->state
;