1 /**************************************************************************
3 * Copyright 2007 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 **************************************************************************/
28 /* Authors: Keith Whitwell <keith@tungstengraphics.com>
32 #include "draw/draw_context.h"
33 #include "util/u_inlines.h"
34 #include "util/u_math.h"
35 #include "util/u_memory.h"
36 #include "tgsi/tgsi_parse.h"
38 #include "i915_context.h"
40 #include "i915_state_inlines.h"
43 /* The i915 (and related graphics cores) do not support GL_CLAMP. The
44 * Intel drivers for "other operating systems" implement GL_CLAMP as
45 * GL_CLAMP_TO_EDGE, so the same is done here.
48 translate_wrap_mode(unsigned wrap
)
51 case PIPE_TEX_WRAP_REPEAT
:
52 return TEXCOORDMODE_WRAP
;
53 case PIPE_TEX_WRAP_CLAMP
:
54 return TEXCOORDMODE_CLAMP_EDGE
; /* not quite correct */
55 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
56 return TEXCOORDMODE_CLAMP_EDGE
;
57 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
58 return TEXCOORDMODE_CLAMP_BORDER
;
60 case PIPE_TEX_WRAP_MIRRORED_REPEAT:
61 return TEXCOORDMODE_MIRROR;
64 return TEXCOORDMODE_WRAP
;
68 static unsigned translate_img_filter( unsigned filter
)
71 case PIPE_TEX_FILTER_NEAREST
:
72 return FILTER_NEAREST
;
73 case PIPE_TEX_FILTER_LINEAR
:
77 return FILTER_NEAREST
;
81 static unsigned translate_mip_filter( unsigned filter
)
84 case PIPE_TEX_MIPFILTER_NONE
:
85 return MIPFILTER_NONE
;
86 case PIPE_TEX_MIPFILTER_NEAREST
:
87 return MIPFILTER_NEAREST
;
88 case PIPE_TEX_MIPFILTER_LINEAR
:
89 return MIPFILTER_LINEAR
;
92 return MIPFILTER_NONE
;
97 /* None of this state is actually used for anything yet.
100 i915_create_blend_state(struct pipe_context
*pipe
,
101 const struct pipe_blend_state
*blend
)
103 struct i915_blend_state
*cso_data
= CALLOC_STRUCT( i915_blend_state
);
106 unsigned eqRGB
= blend
->rt
[0].rgb_func
;
107 unsigned srcRGB
= blend
->rt
[0].rgb_src_factor
;
108 unsigned dstRGB
= blend
->rt
[0].rgb_dst_factor
;
110 unsigned eqA
= blend
->rt
[0].alpha_func
;
111 unsigned srcA
= blend
->rt
[0].alpha_src_factor
;
112 unsigned dstA
= blend
->rt
[0].alpha_dst_factor
;
114 /* Special handling for MIN/MAX filter modes handled at
115 * state_tracker level.
118 if (srcA
!= srcRGB
||
122 cso_data
->iab
= (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD
|
126 IAB_MODIFY_SRC_FACTOR
|
127 IAB_MODIFY_DST_FACTOR
|
128 SRC_ABLND_FACT(i915_translate_blend_factor(srcA
)) |
129 DST_ABLND_FACT(i915_translate_blend_factor(dstA
)) |
130 (i915_translate_blend_func(eqA
) << IAB_FUNC_SHIFT
));
133 cso_data
->iab
= (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD
|
139 cso_data
->modes4
|= (_3DSTATE_MODES_4_CMD
|
140 ENABLE_LOGIC_OP_FUNC
|
141 LOGIC_OP_FUNC(i915_translate_logic_op(blend
->logicop_func
)));
143 if (blend
->logicop_enable
)
144 cso_data
->LIS5
|= S5_LOGICOP_ENABLE
;
147 cso_data
->LIS5
|= S5_COLOR_DITHER_ENABLE
;
149 if ((blend
->rt
[0].colormask
& PIPE_MASK_R
) == 0)
150 cso_data
->LIS5
|= S5_WRITEDISABLE_RED
;
152 if ((blend
->rt
[0].colormask
& PIPE_MASK_G
) == 0)
153 cso_data
->LIS5
|= S5_WRITEDISABLE_GREEN
;
155 if ((blend
->rt
[0].colormask
& PIPE_MASK_B
) == 0)
156 cso_data
->LIS5
|= S5_WRITEDISABLE_BLUE
;
158 if ((blend
->rt
[0].colormask
& PIPE_MASK_A
) == 0)
159 cso_data
->LIS5
|= S5_WRITEDISABLE_ALPHA
;
161 if (blend
->rt
[0].blend_enable
) {
162 unsigned funcRGB
= blend
->rt
[0].rgb_func
;
163 unsigned srcRGB
= blend
->rt
[0].rgb_src_factor
;
164 unsigned dstRGB
= blend
->rt
[0].rgb_dst_factor
;
166 cso_data
->LIS6
|= (S6_CBUF_BLEND_ENABLE
|
167 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB
)) |
168 DST_BLND_FACT(i915_translate_blend_factor(dstRGB
)) |
169 (i915_translate_blend_func(funcRGB
) << S6_CBUF_BLEND_FUNC_SHIFT
));
175 static void i915_bind_blend_state(struct pipe_context
*pipe
,
178 struct i915_context
*i915
= i915_context(pipe
);
179 draw_flush(i915
->draw
);
181 i915
->blend
= (struct i915_blend_state
*)blend
;
183 i915
->dirty
|= I915_NEW_BLEND
;
187 static void i915_delete_blend_state(struct pipe_context
*pipe
, void *blend
)
192 static void i915_set_blend_color( struct pipe_context
*pipe
,
193 const struct pipe_blend_color
*blend_color
)
195 struct i915_context
*i915
= i915_context(pipe
);
196 draw_flush(i915
->draw
);
198 i915
->blend_color
= *blend_color
;
200 i915
->dirty
|= I915_NEW_BLEND
;
203 static void i915_set_stencil_ref( struct pipe_context
*pipe
,
204 const struct pipe_stencil_ref
*stencil_ref
)
206 struct i915_context
*i915
= i915_context(pipe
);
207 draw_flush(i915
->draw
);
209 i915
->stencil_ref
= *stencil_ref
;
211 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
215 i915_create_sampler_state(struct pipe_context
*pipe
,
216 const struct pipe_sampler_state
*sampler
)
218 struct i915_sampler_state
*cso
= CALLOC_STRUCT( i915_sampler_state
);
219 const unsigned ws
= sampler
->wrap_s
;
220 const unsigned wt
= sampler
->wrap_t
;
221 const unsigned wr
= sampler
->wrap_r
;
222 unsigned minFilt
, magFilt
;
225 cso
->templ
= sampler
;
227 mipFilt
= translate_mip_filter(sampler
->min_mip_filter
);
228 minFilt
= translate_img_filter( sampler
->min_img_filter
);
229 magFilt
= translate_img_filter( sampler
->mag_img_filter
);
231 if (sampler
->max_anisotropy
> 1)
232 minFilt
= magFilt
= FILTER_ANISOTROPIC
;
234 if (sampler
->max_anisotropy
> 2) {
235 cso
->state
[0] |= SS2_MAX_ANISO_4
;
239 int b
= (int) (sampler
->lod_bias
* 16.0);
240 b
= CLAMP(b
, -256, 255);
241 cso
->state
[0] |= ((b
<< SS2_LOD_BIAS_SHIFT
) & SS2_LOD_BIAS_MASK
);
246 if (sampler
->compare_mode
== PIPE_TEX_COMPARE_R_TO_TEXTURE
)
248 cso
->state
[0] |= (SS2_SHADOW_ENABLE
|
249 i915_translate_compare_func(sampler
->compare_func
));
251 minFilt
= FILTER_4X4_FLAT
;
252 magFilt
= FILTER_4X4_FLAT
;
255 cso
->state
[0] |= ((minFilt
<< SS2_MIN_FILTER_SHIFT
) |
256 (mipFilt
<< SS2_MIP_FILTER_SHIFT
) |
257 (magFilt
<< SS2_MAG_FILTER_SHIFT
));
260 ((translate_wrap_mode(ws
) << SS3_TCX_ADDR_MODE_SHIFT
) |
261 (translate_wrap_mode(wt
) << SS3_TCY_ADDR_MODE_SHIFT
) |
262 (translate_wrap_mode(wr
) << SS3_TCZ_ADDR_MODE_SHIFT
));
264 if (sampler
->normalized_coords
)
265 cso
->state
[1] |= SS3_NORMALIZED_COORDS
;
268 int minlod
= (int) (16.0 * sampler
->min_lod
);
269 int maxlod
= (int) (16.0 * sampler
->max_lod
);
270 minlod
= CLAMP(minlod
, 0, 16 * 11);
271 maxlod
= CLAMP(maxlod
, 0, 16 * 11);
276 cso
->minlod
= minlod
;
277 cso
->maxlod
= maxlod
;
281 ubyte r
= float_to_ubyte(sampler
->border_color
[0]);
282 ubyte g
= float_to_ubyte(sampler
->border_color
[1]);
283 ubyte b
= float_to_ubyte(sampler
->border_color
[2]);
284 ubyte a
= float_to_ubyte(sampler
->border_color
[3]);
285 cso
->state
[2] = I915PACKCOLOR8888(r
, g
, b
, a
);
290 static void i915_bind_sampler_states(struct pipe_context
*pipe
,
291 unsigned num
, void **sampler
)
293 struct i915_context
*i915
= i915_context(pipe
);
296 assert(num
<= PIPE_MAX_SAMPLERS
);
298 /* Check for no-op */
299 if (num
== i915
->num_samplers
&&
300 !memcmp(i915
->sampler
, sampler
, num
* sizeof(void *)))
303 draw_flush(i915
->draw
);
305 for (i
= 0; i
< num
; ++i
)
306 i915
->sampler
[i
] = sampler
[i
];
307 for (i
= num
; i
< PIPE_MAX_SAMPLERS
; ++i
)
308 i915
->sampler
[i
] = NULL
;
310 i915
->num_samplers
= num
;
312 i915
->dirty
|= I915_NEW_SAMPLER
;
315 static void i915_delete_sampler_state(struct pipe_context
*pipe
,
322 /** XXX move someday? Or consolidate all these simple state setters
327 i915_create_depth_stencil_state(struct pipe_context
*pipe
,
328 const struct pipe_depth_stencil_alpha_state
*depth_stencil
)
330 struct i915_depth_stencil_state
*cso
= CALLOC_STRUCT( i915_depth_stencil_state
);
333 int testmask
= depth_stencil
->stencil
[0].valuemask
& 0xff;
334 int writemask
= depth_stencil
->stencil
[0].writemask
& 0xff;
336 cso
->stencil_modes4
|= (_3DSTATE_MODES_4_CMD
|
337 ENABLE_STENCIL_TEST_MASK
|
338 STENCIL_TEST_MASK(testmask
) |
339 ENABLE_STENCIL_WRITE_MASK
|
340 STENCIL_WRITE_MASK(writemask
));
343 if (depth_stencil
->stencil
[0].enabled
) {
344 int test
= i915_translate_compare_func(depth_stencil
->stencil
[0].func
);
345 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].fail_op
);
346 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zfail_op
);
347 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zpass_op
);
349 cso
->stencil_LIS5
|= (S5_STENCIL_TEST_ENABLE
|
350 S5_STENCIL_WRITE_ENABLE
|
351 (test
<< S5_STENCIL_TEST_FUNC_SHIFT
) |
352 (fop
<< S5_STENCIL_FAIL_SHIFT
) |
353 (dfop
<< S5_STENCIL_PASS_Z_FAIL_SHIFT
) |
354 (dpop
<< S5_STENCIL_PASS_Z_PASS_SHIFT
));
357 if (depth_stencil
->stencil
[1].enabled
) {
358 int test
= i915_translate_compare_func(depth_stencil
->stencil
[1].func
);
359 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].fail_op
);
360 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zfail_op
);
361 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zpass_op
);
362 int tmask
= depth_stencil
->stencil
[1].valuemask
& 0xff;
363 int wmask
= depth_stencil
->stencil
[1].writemask
& 0xff;
365 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
366 BFO_ENABLE_STENCIL_FUNCS
|
367 BFO_ENABLE_STENCIL_TWO_SIDE
|
368 BFO_ENABLE_STENCIL_REF
|
369 BFO_STENCIL_TWO_SIDE
|
370 (test
<< BFO_STENCIL_TEST_SHIFT
) |
371 (fop
<< BFO_STENCIL_FAIL_SHIFT
) |
372 (dfop
<< BFO_STENCIL_PASS_Z_FAIL_SHIFT
) |
373 (dpop
<< BFO_STENCIL_PASS_Z_PASS_SHIFT
));
375 cso
->bfo
[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS
|
376 BFM_ENABLE_STENCIL_TEST_MASK
|
377 BFM_ENABLE_STENCIL_WRITE_MASK
|
378 (tmask
<< BFM_STENCIL_TEST_MASK_SHIFT
) |
379 (wmask
<< BFM_STENCIL_WRITE_MASK_SHIFT
));
382 /* This actually disables two-side stencil: The bit set is a
383 * modify-enable bit to indicate we are changing the two-side
384 * setting. Then there is a symbolic zero to show that we are
385 * setting the flag to zero/off.
387 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
388 BFO_ENABLE_STENCIL_TWO_SIDE
|
393 if (depth_stencil
->depth
.enabled
) {
394 int func
= i915_translate_compare_func(depth_stencil
->depth
.func
);
396 cso
->depth_LIS6
|= (S6_DEPTH_TEST_ENABLE
|
397 (func
<< S6_DEPTH_TEST_FUNC_SHIFT
));
399 if (depth_stencil
->depth
.writemask
)
400 cso
->depth_LIS6
|= S6_DEPTH_WRITE_ENABLE
;
403 if (depth_stencil
->alpha
.enabled
) {
404 int test
= i915_translate_compare_func(depth_stencil
->alpha
.func
);
405 ubyte refByte
= float_to_ubyte(depth_stencil
->alpha
.ref_value
);
407 cso
->depth_LIS6
|= (S6_ALPHA_TEST_ENABLE
|
408 (test
<< S6_ALPHA_TEST_FUNC_SHIFT
) |
409 (((unsigned) refByte
) << S6_ALPHA_REF_SHIFT
));
415 static void i915_bind_depth_stencil_state(struct pipe_context
*pipe
,
418 struct i915_context
*i915
= i915_context(pipe
);
419 draw_flush(i915
->draw
);
421 i915
->depth_stencil
= (const struct i915_depth_stencil_state
*)depth_stencil
;
423 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
426 static void i915_delete_depth_stencil_state(struct pipe_context
*pipe
,
433 static void i915_set_scissor_state( struct pipe_context
*pipe
,
434 const struct pipe_scissor_state
*scissor
)
436 struct i915_context
*i915
= i915_context(pipe
);
437 draw_flush(i915
->draw
);
439 memcpy( &i915
->scissor
, scissor
, sizeof(*scissor
) );
440 i915
->dirty
|= I915_NEW_SCISSOR
;
444 static void i915_set_polygon_stipple( struct pipe_context
*pipe
,
445 const struct pipe_poly_stipple
*stipple
)
452 i915_create_fs_state(struct pipe_context
*pipe
,
453 const struct pipe_shader_state
*templ
)
455 struct i915_context
*i915
= i915_context(pipe
);
456 struct i915_fragment_shader
*ifs
= CALLOC_STRUCT(i915_fragment_shader
);
460 ifs
->state
.tokens
= tgsi_dup_tokens(templ
->tokens
);
462 tgsi_scan_shader(templ
->tokens
, &ifs
->info
);
464 /* The shader's compiled to i915 instructions here */
465 i915_translate_fragment_program(i915
, ifs
);
471 i915_bind_fs_state(struct pipe_context
*pipe
, void *shader
)
473 struct i915_context
*i915
= i915_context(pipe
);
474 draw_flush(i915
->draw
);
476 i915
->fs
= (struct i915_fragment_shader
*) shader
;
478 i915
->dirty
|= I915_NEW_FS
;
482 void i915_delete_fs_state(struct pipe_context
*pipe
, void *shader
)
484 struct i915_fragment_shader
*ifs
= (struct i915_fragment_shader
*) shader
;
488 ifs
->program_len
= 0;
490 FREE((struct tgsi_token
*)ifs
->state
.tokens
);
497 i915_create_vs_state(struct pipe_context
*pipe
,
498 const struct pipe_shader_state
*templ
)
500 struct i915_context
*i915
= i915_context(pipe
);
502 /* just pass-through to draw module */
503 return draw_create_vertex_shader(i915
->draw
, templ
);
506 static void i915_bind_vs_state(struct pipe_context
*pipe
, void *shader
)
508 struct i915_context
*i915
= i915_context(pipe
);
510 /* just pass-through to draw module */
511 draw_bind_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
513 i915
->dirty
|= I915_NEW_VS
;
516 static void i915_delete_vs_state(struct pipe_context
*pipe
, void *shader
)
518 struct i915_context
*i915
= i915_context(pipe
);
520 /* just pass-through to draw module */
521 draw_delete_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
524 static void i915_set_constant_buffer(struct pipe_context
*pipe
,
525 uint shader
, uint index
,
526 struct pipe_buffer
*buf
)
528 struct i915_context
*i915
= i915_context(pipe
);
529 struct pipe_screen
*screen
= pipe
->screen
;
530 draw_flush(i915
->draw
);
532 assert(shader
< PIPE_SHADER_TYPES
);
535 /* Make a copy of shader constants.
536 * During fragment program translation we may add additional
537 * constants to the array.
539 * We want to consider the situation where some user constants
540 * (ex: a material color) may change frequently but the shader program
541 * stays the same. In that case we should only be updating the first
542 * N constants, leaving any extras from shader translation alone.
547 (mapped
= pipe_buffer_map(screen
, buf
,
548 PIPE_BUFFER_USAGE_CPU_READ
))) {
549 memcpy(i915
->current
.constants
[shader
], mapped
, buf
->size
);
550 pipe_buffer_unmap(screen
, buf
);
551 i915
->current
.num_user_constants
[shader
]
552 = buf
->size
/ (4 * sizeof(float));
555 i915
->current
.num_user_constants
[shader
] = 0;
559 i915
->dirty
|= I915_NEW_CONSTANTS
;
563 static void i915_set_fragment_sampler_views(struct pipe_context
*pipe
,
565 struct pipe_sampler_view
**views
)
567 struct i915_context
*i915
= i915_context(pipe
);
570 assert(num
<= PIPE_MAX_SAMPLERS
);
572 /* Check for no-op */
573 if (num
== i915
->num_fragment_sampler_views
&&
574 !memcmp(i915
->fragment_sampler_views
, views
, num
* sizeof(struct pipe_sampler_view
*)))
577 /* Fixes wrong texture in texobj with VBUF */
578 draw_flush(i915
->draw
);
580 for (i
= 0; i
< num
; i
++)
581 pipe_sampler_view_reference(&i915
->fragment_sampler_views
[i
],
584 for (i
= num
; i
< i915
->num_fragment_sampler_views
; i
++)
585 pipe_sampler_view_reference(&i915
->fragment_sampler_views
[i
],
588 i915
->num_fragment_sampler_views
= num
;
590 i915
->dirty
|= I915_NEW_SAMPLER_VIEW
;
594 static struct pipe_sampler_view
*
595 i915_create_sampler_view(struct pipe_context
*pipe
,
596 struct pipe_texture
*texture
,
597 const struct pipe_sampler_view
*templ
)
599 struct pipe_sampler_view
*view
= CALLOC_STRUCT(pipe_sampler_view
);
603 view
->reference
.count
= 1;
604 view
->texture
= NULL
;
605 pipe_texture_reference(&view
->texture
, texture
);
606 view
->context
= pipe
;
614 i915_sampler_view_destroy(struct pipe_context
*pipe
,
615 struct pipe_sampler_view
*view
)
617 pipe_texture_reference(&view
->texture
, NULL
);
622 static void i915_set_framebuffer_state(struct pipe_context
*pipe
,
623 const struct pipe_framebuffer_state
*fb
)
625 struct i915_context
*i915
= i915_context(pipe
);
628 draw_flush(i915
->draw
);
630 i915
->framebuffer
.width
= fb
->width
;
631 i915
->framebuffer
.height
= fb
->height
;
632 i915
->framebuffer
.nr_cbufs
= fb
->nr_cbufs
;
633 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
634 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
], fb
->cbufs
[i
]);
636 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, fb
->zsbuf
);
638 i915
->dirty
|= I915_NEW_FRAMEBUFFER
;
643 static void i915_set_clip_state( struct pipe_context
*pipe
,
644 const struct pipe_clip_state
*clip
)
646 struct i915_context
*i915
= i915_context(pipe
);
647 draw_flush(i915
->draw
);
649 draw_set_clip_state(i915
->draw
, clip
);
651 i915
->dirty
|= I915_NEW_CLIP
;
656 /* Called when driver state tracker notices changes to the viewport
659 static void i915_set_viewport_state( struct pipe_context
*pipe
,
660 const struct pipe_viewport_state
*viewport
)
662 struct i915_context
*i915
= i915_context(pipe
);
664 i915
->viewport
= *viewport
; /* struct copy */
666 /* pass the viewport info to the draw module */
667 draw_set_viewport_state(i915
->draw
, &i915
->viewport
);
669 i915
->dirty
|= I915_NEW_VIEWPORT
;
674 i915_create_rasterizer_state(struct pipe_context
*pipe
,
675 const struct pipe_rasterizer_state
*rasterizer
)
677 struct i915_rasterizer_state
*cso
= CALLOC_STRUCT( i915_rasterizer_state
);
679 cso
->templ
= rasterizer
;
680 cso
->color_interp
= rasterizer
->flatshade
? INTERP_CONSTANT
: INTERP_LINEAR
;
681 cso
->light_twoside
= rasterizer
->light_twoside
;
682 cso
->ds
[0].u
= _3DSTATE_DEPTH_OFFSET_SCALE
;
683 cso
->ds
[1].f
= rasterizer
->offset_scale
;
684 if (rasterizer
->poly_stipple_enable
) {
685 cso
->st
|= ST1_ENABLE
;
688 if (rasterizer
->scissor
)
689 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| ENABLE_SCISSOR_RECT
;
691 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
;
693 switch (rasterizer
->cull_mode
) {
694 case PIPE_WINDING_NONE
:
695 cso
->LIS4
|= S4_CULLMODE_NONE
;
697 case PIPE_WINDING_CW
:
698 cso
->LIS4
|= S4_CULLMODE_CW
;
700 case PIPE_WINDING_CCW
:
701 cso
->LIS4
|= S4_CULLMODE_CCW
;
703 case PIPE_WINDING_BOTH
:
704 cso
->LIS4
|= S4_CULLMODE_BOTH
;
709 int line_width
= CLAMP((int)(rasterizer
->line_width
* 2), 1, 0xf);
711 cso
->LIS4
|= line_width
<< S4_LINE_WIDTH_SHIFT
;
713 if (rasterizer
->line_smooth
)
714 cso
->LIS4
|= S4_LINE_ANTIALIAS_ENABLE
;
718 int point_size
= CLAMP((int) rasterizer
->point_size
, 1, 0xff);
720 cso
->LIS4
|= point_size
<< S4_POINT_WIDTH_SHIFT
;
723 if (rasterizer
->flatshade
) {
724 cso
->LIS4
|= (S4_FLATSHADE_ALPHA
|
726 S4_FLATSHADE_SPECULAR
);
729 cso
->LIS7
= fui( rasterizer
->offset_units
);
735 static void i915_bind_rasterizer_state( struct pipe_context
*pipe
,
738 struct i915_context
*i915
= i915_context(pipe
);
740 i915
->rasterizer
= (struct i915_rasterizer_state
*)raster
;
742 /* pass-through to draw module */
743 draw_set_rasterizer_state(i915
->draw
,
744 (i915
->rasterizer
? i915
->rasterizer
->templ
: NULL
));
746 i915
->dirty
|= I915_NEW_RASTERIZER
;
749 static void i915_delete_rasterizer_state(struct pipe_context
*pipe
,
755 static void i915_set_vertex_buffers(struct pipe_context
*pipe
,
757 const struct pipe_vertex_buffer
*buffers
)
759 struct i915_context
*i915
= i915_context(pipe
);
760 /* Because we change state before the draw_set_vertex_buffers call
761 * we need a flush here, just to be sure.
763 draw_flush(i915
->draw
);
765 memcpy(i915
->vertex_buffer
, buffers
, count
* sizeof(buffers
[0]));
766 i915
->num_vertex_buffers
= count
;
768 /* pass-through to draw module */
769 draw_set_vertex_buffers(i915
->draw
, count
, buffers
);
773 i915_create_vertex_elements_state(struct pipe_context
*pipe
,
775 const struct pipe_vertex_element
*attribs
)
777 struct i915_velems_state
*velems
;
778 assert(count
<= PIPE_MAX_ATTRIBS
);
779 velems
= (struct i915_velems_state
*) MALLOC(sizeof(struct i915_velems_state
));
781 velems
->count
= count
;
782 memcpy(velems
->velem
, attribs
, sizeof(*attribs
) * count
);
788 i915_bind_vertex_elements_state(struct pipe_context
*pipe
,
791 struct i915_context
*i915
= i915_context(pipe
);
792 struct i915_velems_state
*i915_velems
= (struct i915_velems_state
*) velems
;
794 /* Because we change state before the draw_set_vertex_buffers call
795 * we need a flush here, just to be sure.
797 draw_flush(i915
->draw
);
799 /* pass-through to draw module */
801 draw_set_vertex_elements(i915
->draw
,
802 i915_velems
->count
, i915_velems
->velem
);
807 i915_delete_vertex_elements_state(struct pipe_context
*pipe
, void *velems
)
813 i915_init_state_functions( struct i915_context
*i915
)
815 i915
->base
.create_blend_state
= i915_create_blend_state
;
816 i915
->base
.bind_blend_state
= i915_bind_blend_state
;
817 i915
->base
.delete_blend_state
= i915_delete_blend_state
;
819 i915
->base
.create_sampler_state
= i915_create_sampler_state
;
820 i915
->base
.bind_fragment_sampler_states
= i915_bind_sampler_states
;
821 i915
->base
.delete_sampler_state
= i915_delete_sampler_state
;
823 i915
->base
.create_depth_stencil_alpha_state
= i915_create_depth_stencil_state
;
824 i915
->base
.bind_depth_stencil_alpha_state
= i915_bind_depth_stencil_state
;
825 i915
->base
.delete_depth_stencil_alpha_state
= i915_delete_depth_stencil_state
;
827 i915
->base
.create_rasterizer_state
= i915_create_rasterizer_state
;
828 i915
->base
.bind_rasterizer_state
= i915_bind_rasterizer_state
;
829 i915
->base
.delete_rasterizer_state
= i915_delete_rasterizer_state
;
830 i915
->base
.create_fs_state
= i915_create_fs_state
;
831 i915
->base
.bind_fs_state
= i915_bind_fs_state
;
832 i915
->base
.delete_fs_state
= i915_delete_fs_state
;
833 i915
->base
.create_vs_state
= i915_create_vs_state
;
834 i915
->base
.bind_vs_state
= i915_bind_vs_state
;
835 i915
->base
.delete_vs_state
= i915_delete_vs_state
;
836 i915
->base
.create_vertex_elements_state
= i915_create_vertex_elements_state
;
837 i915
->base
.bind_vertex_elements_state
= i915_bind_vertex_elements_state
;
838 i915
->base
.delete_vertex_elements_state
= i915_delete_vertex_elements_state
;
840 i915
->base
.set_blend_color
= i915_set_blend_color
;
841 i915
->base
.set_stencil_ref
= i915_set_stencil_ref
;
842 i915
->base
.set_clip_state
= i915_set_clip_state
;
843 i915
->base
.set_constant_buffer
= i915_set_constant_buffer
;
844 i915
->base
.set_framebuffer_state
= i915_set_framebuffer_state
;
846 i915
->base
.set_polygon_stipple
= i915_set_polygon_stipple
;
847 i915
->base
.set_scissor_state
= i915_set_scissor_state
;
848 i915
->base
.set_fragment_sampler_views
= i915_set_fragment_sampler_views
;
849 i915
->base
.create_sampler_view
= i915_create_sampler_view
;
850 i915
->base
.sampler_view_destroy
= i915_sampler_view_destroy
;
851 i915
->base
.set_viewport_state
= i915_set_viewport_state
;
852 i915
->base
.set_vertex_buffers
= i915_set_vertex_buffers
;