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 "pipe/p_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
->rgb_func
;
107 unsigned srcRGB
= blend
->rgb_src_factor
;
108 unsigned dstRGB
= blend
->rgb_dst_factor
;
110 unsigned eqA
= blend
->alpha_func
;
111 unsigned srcA
= blend
->alpha_src_factor
;
112 unsigned dstA
= blend
->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
->colormask
& PIPE_MASK_R
) == 0)
150 cso_data
->LIS5
|= S5_WRITEDISABLE_RED
;
152 if ((blend
->colormask
& PIPE_MASK_G
) == 0)
153 cso_data
->LIS5
|= S5_WRITEDISABLE_GREEN
;
155 if ((blend
->colormask
& PIPE_MASK_B
) == 0)
156 cso_data
->LIS5
|= S5_WRITEDISABLE_BLUE
;
158 if ((blend
->colormask
& PIPE_MASK_A
) == 0)
159 cso_data
->LIS5
|= S5_WRITEDISABLE_ALPHA
;
161 if (blend
->blend_enable
) {
162 unsigned funcRGB
= blend
->rgb_func
;
163 unsigned srcRGB
= blend
->rgb_src_factor
;
164 unsigned dstRGB
= blend
->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
;
204 i915_create_sampler_state(struct pipe_context
*pipe
,
205 const struct pipe_sampler_state
*sampler
)
207 struct i915_sampler_state
*cso
= CALLOC_STRUCT( i915_sampler_state
);
208 const unsigned ws
= sampler
->wrap_s
;
209 const unsigned wt
= sampler
->wrap_t
;
210 const unsigned wr
= sampler
->wrap_r
;
211 unsigned minFilt
, magFilt
;
214 cso
->templ
= sampler
;
216 mipFilt
= translate_mip_filter(sampler
->min_mip_filter
);
217 minFilt
= translate_img_filter( sampler
->min_img_filter
);
218 magFilt
= translate_img_filter( sampler
->mag_img_filter
);
220 if (sampler
->max_anisotropy
> 1.0)
221 minFilt
= magFilt
= FILTER_ANISOTROPIC
;
223 if (sampler
->max_anisotropy
> 2.0) {
224 cso
->state
[0] |= SS2_MAX_ANISO_4
;
228 int b
= (int) (sampler
->lod_bias
* 16.0);
229 b
= CLAMP(b
, -256, 255);
230 cso
->state
[0] |= ((b
<< SS2_LOD_BIAS_SHIFT
) & SS2_LOD_BIAS_MASK
);
235 if (sampler
->compare_mode
== PIPE_TEX_COMPARE_R_TO_TEXTURE
)
237 cso
->state
[0] |= (SS2_SHADOW_ENABLE
|
238 i915_translate_compare_func(sampler
->compare_func
));
240 minFilt
= FILTER_4X4_FLAT
;
241 magFilt
= FILTER_4X4_FLAT
;
244 cso
->state
[0] |= ((minFilt
<< SS2_MIN_FILTER_SHIFT
) |
245 (mipFilt
<< SS2_MIP_FILTER_SHIFT
) |
246 (magFilt
<< SS2_MAG_FILTER_SHIFT
));
249 ((translate_wrap_mode(ws
) << SS3_TCX_ADDR_MODE_SHIFT
) |
250 (translate_wrap_mode(wt
) << SS3_TCY_ADDR_MODE_SHIFT
) |
251 (translate_wrap_mode(wr
) << SS3_TCZ_ADDR_MODE_SHIFT
));
253 if (sampler
->normalized_coords
)
254 cso
->state
[1] |= SS3_NORMALIZED_COORDS
;
257 int minlod
= (int) (16.0 * sampler
->min_lod
);
258 int maxlod
= (int) (16.0 * sampler
->max_lod
);
259 minlod
= CLAMP(minlod
, 0, 16 * 11);
260 maxlod
= CLAMP(maxlod
, 0, 16 * 11);
265 cso
->minlod
= minlod
;
266 cso
->maxlod
= maxlod
;
270 ubyte r
= float_to_ubyte(sampler
->border_color
[0]);
271 ubyte g
= float_to_ubyte(sampler
->border_color
[1]);
272 ubyte b
= float_to_ubyte(sampler
->border_color
[2]);
273 ubyte a
= float_to_ubyte(sampler
->border_color
[3]);
274 cso
->state
[2] = I915PACKCOLOR8888(r
, g
, b
, a
);
279 static void i915_bind_sampler_states(struct pipe_context
*pipe
,
280 unsigned num
, void **sampler
)
282 struct i915_context
*i915
= i915_context(pipe
);
285 assert(num
<= PIPE_MAX_SAMPLERS
);
287 /* Check for no-op */
288 if (num
== i915
->num_samplers
&&
289 !memcmp(i915
->sampler
, sampler
, num
* sizeof(void *)))
292 draw_flush(i915
->draw
);
294 for (i
= 0; i
< num
; ++i
)
295 i915
->sampler
[i
] = sampler
[i
];
296 for (i
= num
; i
< PIPE_MAX_SAMPLERS
; ++i
)
297 i915
->sampler
[i
] = NULL
;
299 i915
->num_samplers
= num
;
301 i915
->dirty
|= I915_NEW_SAMPLER
;
304 static void i915_delete_sampler_state(struct pipe_context
*pipe
,
311 /** XXX move someday? Or consolidate all these simple state setters
316 i915_create_depth_stencil_state(struct pipe_context
*pipe
,
317 const struct pipe_depth_stencil_alpha_state
*depth_stencil
)
319 struct i915_depth_stencil_state
*cso
= CALLOC_STRUCT( i915_depth_stencil_state
);
322 int testmask
= depth_stencil
->stencil
[0].valuemask
& 0xff;
323 int writemask
= depth_stencil
->stencil
[0].writemask
& 0xff;
325 cso
->stencil_modes4
|= (_3DSTATE_MODES_4_CMD
|
326 ENABLE_STENCIL_TEST_MASK
|
327 STENCIL_TEST_MASK(testmask
) |
328 ENABLE_STENCIL_WRITE_MASK
|
329 STENCIL_WRITE_MASK(writemask
));
332 if (depth_stencil
->stencil
[0].enabled
) {
333 int test
= i915_translate_compare_func(depth_stencil
->stencil
[0].func
);
334 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].fail_op
);
335 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zfail_op
);
336 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zpass_op
);
337 int ref
= depth_stencil
->stencil
[0].ref_value
& 0xff;
339 cso
->stencil_LIS5
|= (S5_STENCIL_TEST_ENABLE
|
340 S5_STENCIL_WRITE_ENABLE
|
341 (ref
<< S5_STENCIL_REF_SHIFT
) |
342 (test
<< S5_STENCIL_TEST_FUNC_SHIFT
) |
343 (fop
<< S5_STENCIL_FAIL_SHIFT
) |
344 (dfop
<< S5_STENCIL_PASS_Z_FAIL_SHIFT
) |
345 (dpop
<< S5_STENCIL_PASS_Z_PASS_SHIFT
));
348 if (depth_stencil
->stencil
[1].enabled
) {
349 int test
= i915_translate_compare_func(depth_stencil
->stencil
[1].func
);
350 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].fail_op
);
351 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zfail_op
);
352 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zpass_op
);
353 int ref
= depth_stencil
->stencil
[1].ref_value
& 0xff;
354 int tmask
= depth_stencil
->stencil
[1].valuemask
& 0xff;
355 int wmask
= depth_stencil
->stencil
[1].writemask
& 0xff;
357 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
358 BFO_ENABLE_STENCIL_FUNCS
|
359 BFO_ENABLE_STENCIL_TWO_SIDE
|
360 BFO_ENABLE_STENCIL_REF
|
361 BFO_STENCIL_TWO_SIDE
|
362 (ref
<< BFO_STENCIL_REF_SHIFT
) |
363 (test
<< BFO_STENCIL_TEST_SHIFT
) |
364 (fop
<< BFO_STENCIL_FAIL_SHIFT
) |
365 (dfop
<< BFO_STENCIL_PASS_Z_FAIL_SHIFT
) |
366 (dpop
<< BFO_STENCIL_PASS_Z_PASS_SHIFT
));
368 cso
->bfo
[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS
|
369 BFM_ENABLE_STENCIL_TEST_MASK
|
370 BFM_ENABLE_STENCIL_WRITE_MASK
|
371 (tmask
<< BFM_STENCIL_TEST_MASK_SHIFT
) |
372 (wmask
<< BFM_STENCIL_WRITE_MASK_SHIFT
));
375 /* This actually disables two-side stencil: The bit set is a
376 * modify-enable bit to indicate we are changing the two-side
377 * setting. Then there is a symbolic zero to show that we are
378 * setting the flag to zero/off.
380 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
381 BFO_ENABLE_STENCIL_TWO_SIDE
|
386 if (depth_stencil
->depth
.enabled
) {
387 int func
= i915_translate_compare_func(depth_stencil
->depth
.func
);
389 cso
->depth_LIS6
|= (S6_DEPTH_TEST_ENABLE
|
390 (func
<< S6_DEPTH_TEST_FUNC_SHIFT
));
392 if (depth_stencil
->depth
.writemask
)
393 cso
->depth_LIS6
|= S6_DEPTH_WRITE_ENABLE
;
396 if (depth_stencil
->alpha
.enabled
) {
397 int test
= i915_translate_compare_func(depth_stencil
->alpha
.func
);
398 ubyte refByte
= float_to_ubyte(depth_stencil
->alpha
.ref_value
);
400 cso
->depth_LIS6
|= (S6_ALPHA_TEST_ENABLE
|
401 (test
<< S6_ALPHA_TEST_FUNC_SHIFT
) |
402 (((unsigned) refByte
) << S6_ALPHA_REF_SHIFT
));
408 static void i915_bind_depth_stencil_state(struct pipe_context
*pipe
,
411 struct i915_context
*i915
= i915_context(pipe
);
412 draw_flush(i915
->draw
);
414 i915
->depth_stencil
= (const struct i915_depth_stencil_state
*)depth_stencil
;
416 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
419 static void i915_delete_depth_stencil_state(struct pipe_context
*pipe
,
426 static void i915_set_scissor_state( struct pipe_context
*pipe
,
427 const struct pipe_scissor_state
*scissor
)
429 struct i915_context
*i915
= i915_context(pipe
);
430 draw_flush(i915
->draw
);
432 memcpy( &i915
->scissor
, scissor
, sizeof(*scissor
) );
433 i915
->dirty
|= I915_NEW_SCISSOR
;
437 static void i915_set_polygon_stipple( struct pipe_context
*pipe
,
438 const struct pipe_poly_stipple
*stipple
)
445 i915_create_fs_state(struct pipe_context
*pipe
,
446 const struct pipe_shader_state
*templ
)
448 struct i915_context
*i915
= i915_context(pipe
);
449 struct i915_fragment_shader
*ifs
= CALLOC_STRUCT(i915_fragment_shader
);
453 ifs
->state
.tokens
= tgsi_dup_tokens(templ
->tokens
);
455 tgsi_scan_shader(templ
->tokens
, &ifs
->info
);
457 /* The shader's compiled to i915 instructions here */
458 i915_translate_fragment_program(i915
, ifs
);
464 i915_bind_fs_state(struct pipe_context
*pipe
, void *shader
)
466 struct i915_context
*i915
= i915_context(pipe
);
467 draw_flush(i915
->draw
);
469 i915
->fs
= (struct i915_fragment_shader
*) shader
;
471 i915
->dirty
|= I915_NEW_FS
;
475 void i915_delete_fs_state(struct pipe_context
*pipe
, void *shader
)
477 struct i915_fragment_shader
*ifs
= (struct i915_fragment_shader
*) shader
;
481 ifs
->program_len
= 0;
483 FREE((struct tgsi_token
*)ifs
->state
.tokens
);
490 i915_create_vs_state(struct pipe_context
*pipe
,
491 const struct pipe_shader_state
*templ
)
493 struct i915_context
*i915
= i915_context(pipe
);
495 /* just pass-through to draw module */
496 return draw_create_vertex_shader(i915
->draw
, templ
);
499 static void i915_bind_vs_state(struct pipe_context
*pipe
, void *shader
)
501 struct i915_context
*i915
= i915_context(pipe
);
503 /* just pass-through to draw module */
504 draw_bind_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
506 i915
->dirty
|= I915_NEW_VS
;
509 static void i915_delete_vs_state(struct pipe_context
*pipe
, void *shader
)
511 struct i915_context
*i915
= i915_context(pipe
);
513 /* just pass-through to draw module */
514 draw_delete_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
517 static void i915_set_constant_buffer(struct pipe_context
*pipe
,
518 uint shader
, uint index
,
519 struct pipe_buffer
*buf
)
521 struct i915_context
*i915
= i915_context(pipe
);
522 struct pipe_screen
*screen
= pipe
->screen
;
523 draw_flush(i915
->draw
);
525 assert(shader
< PIPE_SHADER_TYPES
);
528 /* Make a copy of shader constants.
529 * During fragment program translation we may add additional
530 * constants to the array.
532 * We want to consider the situation where some user constants
533 * (ex: a material color) may change frequently but the shader program
534 * stays the same. In that case we should only be updating the first
535 * N constants, leaving any extras from shader translation alone.
540 (mapped
= pipe_buffer_map(screen
, buf
,
541 PIPE_BUFFER_USAGE_CPU_READ
))) {
542 memcpy(i915
->current
.constants
[shader
], mapped
, buf
->size
);
543 pipe_buffer_unmap(screen
, buf
);
544 i915
->current
.num_user_constants
[shader
]
545 = buf
->size
/ (4 * sizeof(float));
548 i915
->current
.num_user_constants
[shader
] = 0;
552 i915
->dirty
|= I915_NEW_CONSTANTS
;
556 static void i915_set_sampler_textures(struct pipe_context
*pipe
,
558 struct pipe_texture
**texture
)
560 struct i915_context
*i915
= i915_context(pipe
);
563 assert(num
<= PIPE_MAX_SAMPLERS
);
565 /* Check for no-op */
566 if (num
== i915
->num_textures
&&
567 !memcmp(i915
->texture
, texture
, num
* sizeof(struct pipe_texture
*)))
570 /* Fixes wrong texture in texobj with VBUF */
571 draw_flush(i915
->draw
);
573 for (i
= 0; i
< num
; i
++)
574 pipe_texture_reference((struct pipe_texture
**) &i915
->texture
[i
],
577 for (i
= num
; i
< i915
->num_textures
; i
++)
578 pipe_texture_reference((struct pipe_texture
**) &i915
->texture
[i
],
581 i915
->num_textures
= num
;
583 i915
->dirty
|= I915_NEW_TEXTURE
;
588 static void i915_set_framebuffer_state(struct pipe_context
*pipe
,
589 const struct pipe_framebuffer_state
*fb
)
591 struct i915_context
*i915
= i915_context(pipe
);
594 draw_flush(i915
->draw
);
596 i915
->framebuffer
.width
= fb
->width
;
597 i915
->framebuffer
.height
= fb
->height
;
598 i915
->framebuffer
.nr_cbufs
= fb
->nr_cbufs
;
599 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
600 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
], fb
->cbufs
[i
]);
602 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, fb
->zsbuf
);
604 i915
->dirty
|= I915_NEW_FRAMEBUFFER
;
609 static void i915_set_clip_state( struct pipe_context
*pipe
,
610 const struct pipe_clip_state
*clip
)
612 struct i915_context
*i915
= i915_context(pipe
);
613 draw_flush(i915
->draw
);
615 draw_set_clip_state(i915
->draw
, clip
);
617 i915
->dirty
|= I915_NEW_CLIP
;
622 /* Called when driver state tracker notices changes to the viewport
625 static void i915_set_viewport_state( struct pipe_context
*pipe
,
626 const struct pipe_viewport_state
*viewport
)
628 struct i915_context
*i915
= i915_context(pipe
);
630 i915
->viewport
= *viewport
; /* struct copy */
632 /* pass the viewport info to the draw module */
633 draw_set_viewport_state(i915
->draw
, &i915
->viewport
);
635 i915
->dirty
|= I915_NEW_VIEWPORT
;
640 i915_create_rasterizer_state(struct pipe_context
*pipe
,
641 const struct pipe_rasterizer_state
*rasterizer
)
643 struct i915_rasterizer_state
*cso
= CALLOC_STRUCT( i915_rasterizer_state
);
645 cso
->templ
= rasterizer
;
646 cso
->color_interp
= rasterizer
->flatshade
? INTERP_CONSTANT
: INTERP_LINEAR
;
647 cso
->light_twoside
= rasterizer
->light_twoside
;
648 cso
->ds
[0].u
= _3DSTATE_DEPTH_OFFSET_SCALE
;
649 cso
->ds
[1].f
= rasterizer
->offset_scale
;
650 if (rasterizer
->poly_stipple_enable
) {
651 cso
->st
|= ST1_ENABLE
;
654 if (rasterizer
->scissor
)
655 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| ENABLE_SCISSOR_RECT
;
657 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
;
659 switch (rasterizer
->cull_mode
) {
660 case PIPE_WINDING_NONE
:
661 cso
->LIS4
|= S4_CULLMODE_NONE
;
663 case PIPE_WINDING_CW
:
664 cso
->LIS4
|= S4_CULLMODE_CW
;
666 case PIPE_WINDING_CCW
:
667 cso
->LIS4
|= S4_CULLMODE_CCW
;
669 case PIPE_WINDING_BOTH
:
670 cso
->LIS4
|= S4_CULLMODE_BOTH
;
675 int line_width
= CLAMP((int)(rasterizer
->line_width
* 2), 1, 0xf);
677 cso
->LIS4
|= line_width
<< S4_LINE_WIDTH_SHIFT
;
679 if (rasterizer
->line_smooth
)
680 cso
->LIS4
|= S4_LINE_ANTIALIAS_ENABLE
;
684 int point_size
= CLAMP((int) rasterizer
->point_size
, 1, 0xff);
686 cso
->LIS4
|= point_size
<< S4_POINT_WIDTH_SHIFT
;
689 if (rasterizer
->flatshade
) {
690 cso
->LIS4
|= (S4_FLATSHADE_ALPHA
|
692 S4_FLATSHADE_SPECULAR
);
695 cso
->LIS7
= fui( rasterizer
->offset_units
);
701 static void i915_bind_rasterizer_state( struct pipe_context
*pipe
,
704 struct i915_context
*i915
= i915_context(pipe
);
706 i915
->rasterizer
= (struct i915_rasterizer_state
*)raster
;
708 /* pass-through to draw module */
709 draw_set_rasterizer_state(i915
->draw
,
710 (i915
->rasterizer
? i915
->rasterizer
->templ
: NULL
));
712 i915
->dirty
|= I915_NEW_RASTERIZER
;
715 static void i915_delete_rasterizer_state(struct pipe_context
*pipe
,
721 static void i915_set_vertex_buffers(struct pipe_context
*pipe
,
723 const struct pipe_vertex_buffer
*buffers
)
725 struct i915_context
*i915
= i915_context(pipe
);
726 /* Because we change state before the draw_set_vertex_buffers call
727 * we need a flush here, just to be sure.
729 draw_flush(i915
->draw
);
731 memcpy(i915
->vertex_buffer
, buffers
, count
* sizeof(buffers
[0]));
732 i915
->num_vertex_buffers
= count
;
734 /* pass-through to draw module */
735 draw_set_vertex_buffers(i915
->draw
, count
, buffers
);
738 static void i915_set_vertex_elements(struct pipe_context
*pipe
,
740 const struct pipe_vertex_element
*elements
)
742 struct i915_context
*i915
= i915_context(pipe
);
743 /* Because we change state before the draw_set_vertex_buffers call
744 * we need a flush here, just to be sure.
746 draw_flush(i915
->draw
);
748 i915
->num_vertex_elements
= count
;
749 /* pass-through to draw module */
750 draw_set_vertex_elements(i915
->draw
, count
, elements
);
755 i915_init_state_functions( struct i915_context
*i915
)
757 i915
->base
.create_blend_state
= i915_create_blend_state
;
758 i915
->base
.bind_blend_state
= i915_bind_blend_state
;
759 i915
->base
.delete_blend_state
= i915_delete_blend_state
;
761 i915
->base
.create_sampler_state
= i915_create_sampler_state
;
762 i915
->base
.bind_fragment_sampler_states
= i915_bind_sampler_states
;
763 i915
->base
.delete_sampler_state
= i915_delete_sampler_state
;
765 i915
->base
.create_depth_stencil_alpha_state
= i915_create_depth_stencil_state
;
766 i915
->base
.bind_depth_stencil_alpha_state
= i915_bind_depth_stencil_state
;
767 i915
->base
.delete_depth_stencil_alpha_state
= i915_delete_depth_stencil_state
;
769 i915
->base
.create_rasterizer_state
= i915_create_rasterizer_state
;
770 i915
->base
.bind_rasterizer_state
= i915_bind_rasterizer_state
;
771 i915
->base
.delete_rasterizer_state
= i915_delete_rasterizer_state
;
772 i915
->base
.create_fs_state
= i915_create_fs_state
;
773 i915
->base
.bind_fs_state
= i915_bind_fs_state
;
774 i915
->base
.delete_fs_state
= i915_delete_fs_state
;
775 i915
->base
.create_vs_state
= i915_create_vs_state
;
776 i915
->base
.bind_vs_state
= i915_bind_vs_state
;
777 i915
->base
.delete_vs_state
= i915_delete_vs_state
;
779 i915
->base
.set_blend_color
= i915_set_blend_color
;
780 i915
->base
.set_clip_state
= i915_set_clip_state
;
781 i915
->base
.set_constant_buffer
= i915_set_constant_buffer
;
782 i915
->base
.set_framebuffer_state
= i915_set_framebuffer_state
;
784 i915
->base
.set_polygon_stipple
= i915_set_polygon_stipple
;
785 i915
->base
.set_scissor_state
= i915_set_scissor_state
;
786 i915
->base
.set_fragment_sampler_textures
= i915_set_sampler_textures
;
787 i915
->base
.set_viewport_state
= i915_set_viewport_state
;
788 i915
->base
.set_vertex_buffers
= i915_set_vertex_buffers
;
789 i915
->base
.set_vertex_elements
= i915_set_vertex_elements
;