2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 #include "util/u_math.h"
24 #include "util/u_pack_color.h"
26 #include "util/u_debug.h"
27 #include "pipe/internal/p_winsys_screen.h"
29 #include "r300_context.h"
31 #include "r300_state_inlines.h"
32 #include "r300_state_shader.h"
34 /* r300_state: Functions used to intialize state context by translating
35 * Gallium state objects into semi-native r300 state objects. */
37 /* Create a new blend state based on the CSO blend state.
39 * This encompasses alpha blending, logic/raster ops, and blend dithering. */
40 static void* r300_create_blend_state(struct pipe_context
* pipe
,
41 const struct pipe_blend_state
* state
)
43 struct r300_blend_state
* blend
= CALLOC_STRUCT(r300_blend_state
);
45 if (state
->blend_enable
) {
46 /* XXX for now, always do separate alpha...
47 * is it faster to do it with one reg? */
48 blend
->blend_control
= R300_ALPHA_BLEND_ENABLE
|
49 R300_SEPARATE_ALPHA_ENABLE
|
51 r300_translate_blend_function(state
->rgb_func
) |
52 (r300_translate_blend_factor(state
->rgb_src_factor
) <<
53 R300_SRC_BLEND_SHIFT
) |
54 (r300_translate_blend_factor(state
->rgb_dst_factor
) <<
55 R300_DST_BLEND_SHIFT
);
56 blend
->alpha_blend_control
=
57 r300_translate_blend_function(state
->alpha_func
) |
58 (r300_translate_blend_factor(state
->alpha_src_factor
) <<
59 R300_SRC_BLEND_SHIFT
) |
60 (r300_translate_blend_factor(state
->alpha_dst_factor
) <<
61 R300_DST_BLEND_SHIFT
);
64 /* PIPE_LOGICOP_* don't need to be translated, fortunately. */
65 /* XXX are logicops still allowed if blending's disabled?
66 * Does Gallium take care of it for us? */
67 if (state
->logicop_enable
) {
68 blend
->rop
= R300_RB3D_ROPCNTL_ROP_ENABLE
|
69 (state
->logicop_func
) << R300_RB3D_ROPCNTL_ROP_SHIFT
;
73 blend
->dither
= R300_RB3D_DITHER_CTL_DITHER_MODE_LUT
|
74 R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT
;
80 /* Bind blend state. */
81 static void r300_bind_blend_state(struct pipe_context
* pipe
,
84 struct r300_context
* r300
= r300_context(pipe
);
86 r300
->blend_state
= (struct r300_blend_state
*)state
;
87 r300
->dirty_state
|= R300_NEW_BLEND
;
90 /* Free blend state. */
91 static void r300_delete_blend_state(struct pipe_context
* pipe
,
98 * Setup both R300 and R500 registers, figure out later which one to write. */
99 static void r300_set_blend_color(struct pipe_context
* pipe
,
100 const struct pipe_blend_color
* color
)
102 struct r300_context
* r300
= r300_context(pipe
);
103 ubyte ur
, ug
, ub
, ua
;
105 ur
= float_to_ubyte(color
->color
[0]);
106 ug
= float_to_ubyte(color
->color
[1]);
107 ub
= float_to_ubyte(color
->color
[2]);
108 ua
= float_to_ubyte(color
->color
[3]);
110 util_pack_color(color
->color
, PIPE_FORMAT_A8R8G8B8_UNORM
,
111 &r300
->blend_color_state
->blend_color
);
113 /* XXX this is wrong */
114 r300
->blend_color_state
->blend_color_red_alpha
= ur
| (ua
<< 16);
115 r300
->blend_color_state
->blend_color_green_blue
= ub
| (ug
<< 16);
117 r300
->dirty_state
|= R300_NEW_BLEND_COLOR
;
120 static void r300_set_clip_state(struct pipe_context
* pipe
,
121 const struct pipe_clip_state
* state
)
123 struct r300_context
* r300
= r300_context(pipe
);
125 draw_flush(r300
->draw
);
126 draw_set_clip_state(r300
->draw
, state
);
130 r300_set_constant_buffer(struct pipe_context
* pipe
,
131 uint shader
, uint index
,
132 const struct pipe_constant_buffer
* buffer
)
134 struct r300_context
* r300
= r300_context(pipe
);
136 /* This entire chunk of code seems ever-so-slightly baked.
137 * It's as if I've got pipe_buffer* matryoshkas... */
138 if (buffer
&& buffer
->buffer
&& buffer
->buffer
->size
) {
139 void* map
= pipe
->winsys
->buffer_map(pipe
->winsys
, buffer
->buffer
,
140 PIPE_BUFFER_USAGE_CPU_READ
);
141 memcpy(r300
->shader_constants
[shader
].constants
,
142 map
, buffer
->buffer
->size
);
143 pipe
->winsys
->buffer_unmap(pipe
->winsys
, buffer
->buffer
);
145 r300
->shader_constants
[shader
].user_count
=
146 buffer
->buffer
->size
/ (sizeof(float) * 4);
148 r300
->shader_constants
[shader
].user_count
= 0;
151 r300
->dirty_state
|= R300_NEW_CONSTANTS
;
154 /* Create a new depth, stencil, and alpha state based on the CSO dsa state.
156 * This contains the depth buffer, stencil buffer, alpha test, and such.
157 * On the Radeon, depth and stencil buffer setup are intertwined, which is
158 * the reason for some of the strange-looking assignments across registers. */
160 r300_create_dsa_state(struct pipe_context
* pipe
,
161 const struct pipe_depth_stencil_alpha_state
* state
)
163 struct r300_dsa_state
* dsa
= CALLOC_STRUCT(r300_dsa_state
);
165 /* Depth test setup. */
166 if (state
->depth
.enabled
) {
167 dsa
->z_buffer_control
|= R300_Z_ENABLE
;
169 if (state
->depth
.writemask
) {
170 dsa
->z_buffer_control
|= R300_Z_WRITE_ENABLE
;
173 dsa
->z_stencil_control
|=
174 (r300_translate_depth_stencil_function(state
->depth
.func
) <<
178 /* Stencil buffer setup. */
179 if (state
->stencil
[0].enabled
) {
180 dsa
->z_buffer_control
|= R300_STENCIL_ENABLE
;
181 dsa
->z_stencil_control
|=
182 (r300_translate_depth_stencil_function(state
->stencil
[0].func
) <<
183 R300_S_FRONT_FUNC_SHIFT
) |
184 (r300_translate_stencil_op(state
->stencil
[0].fail_op
) <<
185 R300_S_FRONT_SFAIL_OP_SHIFT
) |
186 (r300_translate_stencil_op(state
->stencil
[0].zpass_op
) <<
187 R300_S_FRONT_ZPASS_OP_SHIFT
) |
188 (r300_translate_stencil_op(state
->stencil
[0].zfail_op
) <<
189 R300_S_FRONT_ZFAIL_OP_SHIFT
);
191 dsa
->stencil_ref_mask
= (state
->stencil
[0].ref_value
) |
192 (state
->stencil
[0].valuemask
<< R300_STENCILMASK_SHIFT
) |
193 (state
->stencil
[0].writemask
<< R300_STENCILWRITEMASK_SHIFT
);
195 if (state
->stencil
[1].enabled
) {
196 dsa
->z_buffer_control
|= R300_STENCIL_FRONT_BACK
;
197 dsa
->z_stencil_control
|=
198 (r300_translate_depth_stencil_function(state
->stencil
[1].func
) <<
199 R300_S_BACK_FUNC_SHIFT
) |
200 (r300_translate_stencil_op(state
->stencil
[1].fail_op
) <<
201 R300_S_BACK_SFAIL_OP_SHIFT
) |
202 (r300_translate_stencil_op(state
->stencil
[1].zpass_op
) <<
203 R300_S_BACK_ZPASS_OP_SHIFT
) |
204 (r300_translate_stencil_op(state
->stencil
[1].zfail_op
) <<
205 R300_S_BACK_ZFAIL_OP_SHIFT
);
207 dsa
->stencil_ref_bf
= (state
->stencil
[1].ref_value
) |
208 (state
->stencil
[1].valuemask
<< R300_STENCILMASK_SHIFT
) |
209 (state
->stencil
[1].writemask
<< R300_STENCILWRITEMASK_SHIFT
);
213 /* Alpha test setup. */
214 if (state
->alpha
.enabled
) {
215 dsa
->alpha_function
=
216 r300_translate_alpha_function(state
->alpha
.func
) |
217 R300_FG_ALPHA_FUNC_ENABLE
;
218 dsa
->alpha_reference
= CLAMP(state
->alpha
.ref_value
* 1023.0f
,
221 dsa
->z_buffer_top
= R300_ZTOP_ENABLE
;
227 /* Bind DSA state. */
228 static void r300_bind_dsa_state(struct pipe_context
* pipe
,
231 struct r300_context
* r300
= r300_context(pipe
);
233 r300
->dsa_state
= (struct r300_dsa_state
*)state
;
234 r300
->dirty_state
|= R300_NEW_DSA
;
237 /* Free DSA state. */
238 static void r300_delete_dsa_state(struct pipe_context
* pipe
,
244 static void r300_set_edgeflags(struct pipe_context
* pipe
,
245 const unsigned* bitfield
)
247 /* XXX you know it's bad when i915 has this blank too */
251 r300_set_framebuffer_state(struct pipe_context
* pipe
,
252 const struct pipe_framebuffer_state
* state
)
254 struct r300_context
* r300
= r300_context(pipe
);
256 draw_flush(r300
->draw
);
258 r300
->framebuffer_state
= *state
;
260 r300
->dirty_state
|= R300_NEW_FRAMEBUFFERS
;
263 /* Create fragment shader state. */
264 static void* r300_create_fs_state(struct pipe_context
* pipe
,
265 const struct pipe_shader_state
* shader
)
267 struct r300_context
* r300
= r300_context(pipe
);
268 struct r3xx_fragment_shader
* fs
= NULL
;
270 if (r300_screen(r300
->context
.screen
)->caps
->is_r500
) {
272 (struct r3xx_fragment_shader
*)CALLOC_STRUCT(r500_fragment_shader
);
275 (struct r3xx_fragment_shader
*)CALLOC_STRUCT(r300_fragment_shader
);
278 /* Copy state directly into shader. */
281 tgsi_scan_shader(shader
->tokens
, &fs
->info
);
286 /* Bind fragment shader state. */
287 static void r300_bind_fs_state(struct pipe_context
* pipe
, void* shader
)
289 struct r300_context
* r300
= r300_context(pipe
);
290 struct r3xx_fragment_shader
* fs
= (struct r3xx_fragment_shader
*)shader
;
295 } else if (!fs
->translated
) {
296 if (r300_screen(r300
->context
.screen
)->caps
->is_r500
) {
297 r500_translate_fragment_shader(r300
, (struct r500_fragment_shader
*)fs
);
299 r300_translate_fragment_shader(r300
, (struct r300_fragment_shader
*)fs
);
303 fs
->translated
= TRUE
;
306 r300
->dirty_state
|= R300_NEW_FRAGMENT_SHADER
;
309 /* Delete fragment shader state. */
310 static void r300_delete_fs_state(struct pipe_context
* pipe
, void* shader
)
315 static void r300_set_polygon_stipple(struct pipe_context
* pipe
,
316 const struct pipe_poly_stipple
* state
)
321 /* Create a new rasterizer state based on the CSO rasterizer state.
323 * This is a very large chunk of state, and covers most of the graphics
324 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
326 * In a not entirely unironic sidenote, this state has nearly nothing to do
327 * with the actual block on the Radeon called the rasterizer (RS). */
328 static void* r300_create_rs_state(struct pipe_context
* pipe
,
329 const struct pipe_rasterizer_state
* state
)
331 struct r300_rs_state
* rs
= CALLOC_STRUCT(r300_rs_state
);
333 /* XXX this is part of HW TCL */
334 /* XXX endian control */
335 rs
->vap_control_status
= R300_VAP_TCL_BYPASS
;
337 rs
->point_size
= pack_float_16_6x(state
->point_size
) |
338 (pack_float_16_6x(state
->point_size
) << R300_POINTSIZE_X_SHIFT
);
340 rs
->line_control
= pack_float_16_6x(state
->line_width
) |
341 R300_GA_LINE_CNTL_END_TYPE_COMP
;
343 /* Radeons don't think in "CW/CCW", they think in "front/back". */
344 if (state
->front_winding
== PIPE_WINDING_CW
) {
345 rs
->cull_mode
= R300_FRONT_FACE_CW
;
347 if (state
->offset_cw
) {
348 rs
->polygon_offset_enable
|= R300_FRONT_ENABLE
;
350 if (state
->offset_ccw
) {
351 rs
->polygon_offset_enable
|= R300_BACK_ENABLE
;
354 rs
->cull_mode
= R300_FRONT_FACE_CCW
;
356 if (state
->offset_ccw
) {
357 rs
->polygon_offset_enable
|= R300_FRONT_ENABLE
;
359 if (state
->offset_cw
) {
360 rs
->polygon_offset_enable
|= R300_BACK_ENABLE
;
363 if (state
->front_winding
& state
->cull_mode
) {
364 rs
->cull_mode
|= R300_CULL_FRONT
;
366 if (~(state
->front_winding
) & state
->cull_mode
) {
367 rs
->cull_mode
|= R300_CULL_BACK
;
370 if (rs
->polygon_offset_enable
) {
371 rs
->depth_offset_front
= rs
->depth_offset_back
=
372 fui(state
->offset_units
);
373 rs
->depth_scale_front
= rs
->depth_scale_back
=
374 fui(state
->offset_scale
);
377 if (state
->line_stipple_enable
) {
378 rs
->line_stipple_config
=
379 R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE
|
380 (fui((float)state
->line_stipple_factor
) &
381 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK
);
382 /* XXX this might need to be scaled up */
383 rs
->line_stipple_value
= state
->line_stipple_pattern
;
391 /* Bind rasterizer state. */
392 static void r300_bind_rs_state(struct pipe_context
* pipe
, void* state
)
394 struct r300_context
* r300
= r300_context(pipe
);
395 struct r300_rs_state
* rs
= (struct r300_rs_state
*)state
;
397 draw_set_rasterizer_state(r300
->draw
, &rs
->rs
);
400 r300
->dirty_state
|= R300_NEW_RASTERIZER
;
403 /* Free rasterizer state. */
404 static void r300_delete_rs_state(struct pipe_context
* pipe
, void* state
)
410 r300_create_sampler_state(struct pipe_context
* pipe
,
411 const struct pipe_sampler_state
* state
)
413 struct r300_context
* r300
= r300_context(pipe
);
414 struct r300_sampler_state
* sampler
= CALLOC_STRUCT(r300_sampler_state
);
418 (r300_translate_wrap(state
->wrap_s
) << R300_TX_WRAP_S_SHIFT
) |
419 (r300_translate_wrap(state
->wrap_t
) << R300_TX_WRAP_T_SHIFT
) |
420 (r300_translate_wrap(state
->wrap_r
) << R300_TX_WRAP_R_SHIFT
);
422 sampler
->filter0
|= r300_translate_tex_filters(state
->min_img_filter
,
423 state
->mag_img_filter
,
424 state
->min_mip_filter
);
426 lod_bias
= CLAMP((int)(state
->lod_bias
* 32), -(1 << 9), (1 << 9) - 1);
428 sampler
->filter1
|= lod_bias
<< R300_LOD_BIAS_SHIFT
;
430 sampler
->filter1
|= r300_anisotropy(state
->max_anisotropy
);
432 util_pack_color(state
->border_color
, PIPE_FORMAT_A8R8G8B8_UNORM
,
433 &sampler
->border_color
);
435 /* R500-specific fixups and optimizations */
436 if (r300_screen(r300
->context
.screen
)->caps
->is_r500
) {
437 sampler
->filter1
|= R500_BORDER_FIX
;
440 return (void*)sampler
;
443 static void r300_bind_sampler_states(struct pipe_context
* pipe
,
447 struct r300_context
* r300
= r300_context(pipe
);
454 for (i
= 0; i
< count
; i
++) {
455 if (r300
->sampler_states
[i
] != states
[i
]) {
456 r300
->sampler_states
[i
] = (struct r300_sampler_state
*)states
[i
];
457 r300
->dirty_state
|= (R300_NEW_SAMPLER
<< i
);
461 r300
->sampler_count
= count
;
464 static void r300_delete_sampler_state(struct pipe_context
* pipe
, void* state
)
469 static void r300_set_sampler_textures(struct pipe_context
* pipe
,
471 struct pipe_texture
** texture
)
473 struct r300_context
* r300
= r300_context(pipe
);
481 for (i
= 0; i
< count
; i
++) {
482 if (r300
->textures
[i
] != (struct r300_texture
*)texture
[i
]) {
483 pipe_texture_reference((struct pipe_texture
**)&r300
->textures
[i
],
485 r300
->dirty_state
|= (R300_NEW_TEXTURE
<< i
);
489 for (i
= count
; i
< 8; i
++) {
490 if (r300
->textures
[i
]) {
491 pipe_texture_reference((struct pipe_texture
**)&r300
->textures
[i
],
493 r300
->dirty_state
|= (R300_NEW_TEXTURE
<< i
);
497 r300
->texture_count
= count
;
500 static void r300_set_scissor_state(struct pipe_context
* pipe
,
501 const struct pipe_scissor_state
* state
)
503 struct r300_context
* r300
= r300_context(pipe
);
504 draw_flush(r300
->draw
);
506 r300
->scissor_state
->scissor_top_left
=
507 (state
->minx
<< R300_SCISSORS_X_SHIFT
) |
508 (state
->miny
<< R300_SCISSORS_Y_SHIFT
);
509 r300
->scissor_state
->scissor_bottom_right
=
510 (state
->maxx
<< R300_SCISSORS_X_SHIFT
) |
511 (state
->maxy
<< R300_SCISSORS_Y_SHIFT
);
513 r300
->dirty_state
|= R300_NEW_SCISSOR
;
516 static void r300_set_viewport_state(struct pipe_context
* pipe
,
517 const struct pipe_viewport_state
* state
)
519 struct r300_context
* r300
= r300_context(pipe
);
520 /* XXX handing this off to Draw for now */
521 draw_set_viewport_state(r300
->draw
, state
);
524 static void r300_set_vertex_buffers(struct pipe_context
* pipe
,
526 const struct pipe_vertex_buffer
* buffers
)
528 struct r300_context
* r300
= r300_context(pipe
);
530 memcpy(r300
->vertex_buffers
, buffers
,
531 sizeof(struct pipe_vertex_buffer
) * count
);
533 r300
->vertex_buffer_count
= count
;
535 draw_flush(r300
->draw
);
536 draw_set_vertex_buffers(r300
->draw
, count
, buffers
);
539 static void r300_set_vertex_elements(struct pipe_context
* pipe
,
541 const struct pipe_vertex_element
* elements
)
543 struct r300_context
* r300
= r300_context(pipe
);
545 draw_flush(r300
->draw
);
546 draw_set_vertex_elements(r300
->draw
, count
, elements
);
549 static void* r300_create_vs_state(struct pipe_context
* pipe
,
550 const struct pipe_shader_state
* state
)
552 struct r300_context
* context
= r300_context(pipe
);
553 /* XXX handing this off to Draw for now */
554 return draw_create_vertex_shader(context
->draw
, state
);
557 static void r300_bind_vs_state(struct pipe_context
* pipe
, void* state
) {
558 struct r300_context
* context
= r300_context(pipe
);
559 /* XXX handing this off to Draw for now */
560 draw_bind_vertex_shader(context
->draw
, (struct draw_vertex_shader
*)state
);
563 static void r300_delete_vs_state(struct pipe_context
* pipe
, void* state
)
565 struct r300_context
* context
= r300_context(pipe
);
566 /* XXX handing this off to Draw for now */
567 draw_delete_vertex_shader(context
->draw
, (struct draw_vertex_shader
*)state
);
570 void r300_init_state_functions(struct r300_context
* r300
)
572 r300
->context
.create_blend_state
= r300_create_blend_state
;
573 r300
->context
.bind_blend_state
= r300_bind_blend_state
;
574 r300
->context
.delete_blend_state
= r300_delete_blend_state
;
576 r300
->context
.set_blend_color
= r300_set_blend_color
;
578 r300
->context
.set_clip_state
= r300_set_clip_state
;
580 r300
->context
.set_constant_buffer
= r300_set_constant_buffer
;
582 r300
->context
.create_depth_stencil_alpha_state
= r300_create_dsa_state
;
583 r300
->context
.bind_depth_stencil_alpha_state
= r300_bind_dsa_state
;
584 r300
->context
.delete_depth_stencil_alpha_state
= r300_delete_dsa_state
;
586 r300
->context
.set_edgeflags
= r300_set_edgeflags
;
588 r300
->context
.set_framebuffer_state
= r300_set_framebuffer_state
;
590 r300
->context
.create_fs_state
= r300_create_fs_state
;
591 r300
->context
.bind_fs_state
= r300_bind_fs_state
;
592 r300
->context
.delete_fs_state
= r300_delete_fs_state
;
594 r300
->context
.set_polygon_stipple
= r300_set_polygon_stipple
;
596 r300
->context
.create_rasterizer_state
= r300_create_rs_state
;
597 r300
->context
.bind_rasterizer_state
= r300_bind_rs_state
;
598 r300
->context
.delete_rasterizer_state
= r300_delete_rs_state
;
600 r300
->context
.create_sampler_state
= r300_create_sampler_state
;
601 r300
->context
.bind_sampler_states
= r300_bind_sampler_states
;
602 r300
->context
.delete_sampler_state
= r300_delete_sampler_state
;
604 r300
->context
.set_sampler_textures
= r300_set_sampler_textures
;
606 r300
->context
.set_scissor_state
= r300_set_scissor_state
;
608 r300
->context
.set_viewport_state
= r300_set_viewport_state
;
610 r300
->context
.set_vertex_buffers
= r300_set_vertex_buffers
;
611 r300
->context
.set_vertex_elements
= r300_set_vertex_elements
;
613 r300
->context
.create_vs_state
= r300_create_vs_state
;
614 r300
->context
.bind_vs_state
= r300_bind_vs_state
;
615 r300
->context
.delete_vs_state
= r300_delete_vs_state
;