r300_state.c revision d04c85d01bf37d480df8b9a21d9a79194d2e67f3 
1/*
2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3 *
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:
10 *
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
13 * Software.
14 *
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. */
22
23#include "util/u_math.h"
24#include "util/u_pack_color.h"
25
26#include "util/u_debug.h"
27#include "pipe/internal/p_winsys_screen.h"
28
29#include "r300_context.h"
30#include "r300_reg.h"
31#include "r300_state_inlines.h"
32#include "r300_state_shader.h"
33
34/* r300_state: Functions used to intialize state context by translating
35 * Gallium state objects into semi-native r300 state objects. */
36
37/* Create a new blend state based on the CSO blend state.
38 *
39 * This encompasses alpha blending, logic/raster ops, and blend dithering. */
40static void* r300_create_blend_state(struct pipe_context* pipe,
41                                     const struct pipe_blend_state* state)
42{
43    struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state);
44
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 |
50                R300_READ_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);
62    }
63
64    /* PIPE_LOGICOP_* don't need to be translated, fortunately. */
65    if (state->logicop_enable) {
66        blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE |
67                (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT;
68    }
69
70    if (state->dither) {
71        blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
72                R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
73    }
74
75    return (void*)blend;
76}
77
78/* Bind blend state. */
79static void r300_bind_blend_state(struct pipe_context* pipe,
80                                  void* state)
81{
82    struct r300_context* r300 = r300_context(pipe);
83
84    r300->blend_state = (struct r300_blend_state*)state;
85    r300->dirty_state |= R300_NEW_BLEND;
86}
87
88/* Free blend state. */
89static void r300_delete_blend_state(struct pipe_context* pipe,
90                                    void* state)
91{
92    FREE(state);
93}
94
95/* Set blend color.
96 * Setup both R300 and R500 registers, figure out later which one to write. */
97static void r300_set_blend_color(struct pipe_context* pipe,
98                                 const struct pipe_blend_color* color)
99{
100    struct r300_context* r300 = r300_context(pipe);
101    ubyte ur, ug, ub, ua;
102
103    ur = float_to_ubyte(color->color[0]);
104    ug = float_to_ubyte(color->color[1]);
105    ub = float_to_ubyte(color->color[2]);
106    ua = float_to_ubyte(color->color[3]);
107
108    util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM,
109            &r300->blend_color_state->blend_color);
110
111    /* XXX this is wrong */
112    r300->blend_color_state->blend_color_red_alpha = ur | (ua << 16);
113    r300->blend_color_state->blend_color_green_blue = ub | (ug << 16);
114
115    r300->dirty_state |= R300_NEW_BLEND_COLOR;
116}
117
118static void r300_set_clip_state(struct pipe_context* pipe,
119                                const struct pipe_clip_state* state)
120{
121    struct r300_context* r300 = r300_context(pipe);
122    /* XXX add HW TCL clipping setup */
123    draw_flush(r300->draw);
124    draw_set_clip_state(r300->draw, state);
125}
126
127static void
128    r300_set_constant_buffer(struct pipe_context* pipe,
129                             uint shader, uint index,
130                             const struct pipe_constant_buffer* buffer)
131{
132    struct r300_context* r300 = r300_context(pipe);
133    int i = r300->shader_constants[shader].user_count;
134
135    /* This entire chunk of code seems ever-so-slightly baked.
136     * It's as if I've got pipe_buffer* matryoshkas... */
137    if (buffer && buffer->buffer && buffer->buffer->size) {
138        void* map = pipe->winsys->buffer_map(pipe->winsys, buffer->buffer,
139                                             PIPE_BUFFER_USAGE_CPU_READ);
140        memcpy(r300->shader_constants[shader].constants,
141            map, buffer->buffer->size);
142        pipe->winsys->buffer_unmap(pipe->winsys, buffer->buffer);
143
144        r300->shader_constants[shader].user_count =
145            buffer->buffer->size / (sizeof(float) * 4);
146    } else {
147        r300->shader_constants[shader].user_count = 0;
148    }
149
150    r300->dirty_state |= R300_NEW_CONSTANTS;
151
152    /* If the number of constants have changed, invalidate the shader. */
153    if (r300->shader_constants[shader].user_count != i) {
154        if (shader == PIPE_SHADER_FRAGMENT && r300->fs &&
155                r300->fs->uses_imms) {
156            r300->fs->translated = FALSE;
157            r300_translate_fragment_shader(r300, r300->fs);
158        } else if (shader == PIPE_SHADER_VERTEX && r300->vs &&
159                r300->vs->uses_imms) {
160            r300->vs->translated = FALSE;
161            r300_translate_vertex_shader(r300, r300->vs);
162        }
163    }
164}
165
166/* Create a new depth, stencil, and alpha state based on the CSO dsa state.
167 *
168 * This contains the depth buffer, stencil buffer, alpha test, and such.
169 * On the Radeon, depth and stencil buffer setup are intertwined, which is
170 * the reason for some of the strange-looking assignments across registers. */
171static void*
172        r300_create_dsa_state(struct pipe_context* pipe,
173                              const struct pipe_depth_stencil_alpha_state* state)
174{
175    struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
176
177    /* Depth test setup. */
178    if (state->depth.enabled) {
179        dsa->z_buffer_control |= R300_Z_ENABLE;
180
181        if (state->depth.writemask) {
182            dsa->z_buffer_control |= R300_Z_WRITE_ENABLE;
183        }
184
185        dsa->z_stencil_control |=
186            (r300_translate_depth_stencil_function(state->depth.func) <<
187                R300_Z_FUNC_SHIFT);
188    }
189
190    /* Stencil buffer setup. */
191    if (state->stencil[0].enabled) {
192        dsa->z_buffer_control |= R300_STENCIL_ENABLE;
193        dsa->z_stencil_control |=
194            (r300_translate_depth_stencil_function(state->stencil[0].func) <<
195                R300_S_FRONT_FUNC_SHIFT) |
196            (r300_translate_stencil_op(state->stencil[0].fail_op) <<
197                R300_S_FRONT_SFAIL_OP_SHIFT) |
198            (r300_translate_stencil_op(state->stencil[0].zpass_op) <<
199                R300_S_FRONT_ZPASS_OP_SHIFT) |
200            (r300_translate_stencil_op(state->stencil[0].zfail_op) <<
201                R300_S_FRONT_ZFAIL_OP_SHIFT);
202
203        dsa->stencil_ref_mask = (state->stencil[0].ref_value) |
204                (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) |
205                (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT);
206
207        if (state->stencil[1].enabled) {
208            dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK;
209            dsa->z_stencil_control |=
210            (r300_translate_depth_stencil_function(state->stencil[1].func) <<
211                R300_S_BACK_FUNC_SHIFT) |
212            (r300_translate_stencil_op(state->stencil[1].fail_op) <<
213                R300_S_BACK_SFAIL_OP_SHIFT) |
214            (r300_translate_stencil_op(state->stencil[1].zpass_op) <<
215                R300_S_BACK_ZPASS_OP_SHIFT) |
216            (r300_translate_stencil_op(state->stencil[1].zfail_op) <<
217                R300_S_BACK_ZFAIL_OP_SHIFT);
218
219            dsa->stencil_ref_bf = (state->stencil[1].ref_value) |
220                (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) |
221                (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT);
222        }
223    }
224
225    /* Alpha test setup. */
226    if (state->alpha.enabled) {
227        dsa->alpha_function =
228            r300_translate_alpha_function(state->alpha.func) |
229            R300_FG_ALPHA_FUNC_ENABLE;
230        dsa->alpha_reference = CLAMP(state->alpha.ref_value * 1023.0f,
231                                     0, 1023);
232    } else {
233        dsa->z_buffer_top = R300_ZTOP_ENABLE;
234    }
235
236    return (void*)dsa;
237}
238
239/* Bind DSA state. */
240static void r300_bind_dsa_state(struct pipe_context* pipe,
241                                void* state)
242{
243    struct r300_context* r300 = r300_context(pipe);
244
245    r300->dsa_state = (struct r300_dsa_state*)state;
246    r300->dirty_state |= R300_NEW_DSA;
247}
248
249/* Free DSA state. */
250static void r300_delete_dsa_state(struct pipe_context* pipe,
251                                  void* state)
252{
253    FREE(state);
254}
255
256static void r300_set_edgeflags(struct pipe_context* pipe,
257                               const unsigned* bitfield)
258{
259    /* XXX you know it's bad when i915 has this blank too */
260    /* XXX and even worse, I have no idea WTF the bitfield is */
261}
262
263static void
264    r300_set_framebuffer_state(struct pipe_context* pipe,
265                               const struct pipe_framebuffer_state* state)
266{
267    struct r300_context* r300 = r300_context(pipe);
268
269    draw_flush(r300->draw);
270
271    r300->framebuffer_state = *state;
272
273    r300->dirty_state |= R300_NEW_FRAMEBUFFERS;
274}
275
276/* Create fragment shader state. */
277static void* r300_create_fs_state(struct pipe_context* pipe,
278                                  const struct pipe_shader_state* shader)
279{
280    struct r300_context* r300 = r300_context(pipe);
281    struct r3xx_fragment_shader* fs = NULL;
282
283    if (r300_screen(r300->context.screen)->caps->is_r500) {
284        fs =
285            (struct r3xx_fragment_shader*)CALLOC_STRUCT(r500_fragment_shader);
286    } else {
287        fs =
288            (struct r3xx_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
289    }
290
291    /* Copy state directly into shader. */
292    fs->state = *shader;
293    fs->state.tokens = tgsi_dup_tokens(shader->tokens);
294
295    tgsi_scan_shader(shader->tokens, &fs->info);
296
297    return (void*)fs;
298}
299
300/* Bind fragment shader state. */
301static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
302{
303    struct r300_context* r300 = r300_context(pipe);
304    struct r3xx_fragment_shader* fs = (struct r3xx_fragment_shader*)shader;
305
306    if (fs == NULL) {
307        r300->fs = NULL;
308        return;
309    } else if (!fs->translated) {
310        r300_translate_fragment_shader(r300, fs);
311    }
312
313    fs->translated = TRUE;
314    r300->fs = fs;
315
316    r300->dirty_state |= R300_NEW_FRAGMENT_SHADER;
317}
318
319/* Delete fragment shader state. */
320static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
321{
322    struct r3xx_fragment_shader* fs = (struct r3xx_fragment_shader*)shader;
323    FREE(fs->state.tokens);
324    FREE(shader);
325}
326
327static void r300_set_polygon_stipple(struct pipe_context* pipe,
328                                     const struct pipe_poly_stipple* state)
329{
330    /* XXX no idea how to set this up, but not terribly important */
331}
332
333/* Create a new rasterizer state based on the CSO rasterizer state.
334 *
335 * This is a very large chunk of state, and covers most of the graphics
336 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
337 *
338 * In a not entirely unironic sidenote, this state has nearly nothing to do
339 * with the actual block on the Radeon called the rasterizer (RS). */
340static void* r300_create_rs_state(struct pipe_context* pipe,
341                                  const struct pipe_rasterizer_state* state)
342{
343    struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
344
345    /* Copy rasterizer state for Draw. */
346    rs->rs = *state;
347
348    rs->enable_vte = !state->bypass_vs_clip_and_viewport;
349
350    /* If bypassing TCL, or if no TCL engine is present, turn off the HW TCL.
351     * Else, enable HW TCL and force Draw's TCL off. */
352    if (state->bypass_vs_clip_and_viewport ||
353            !r300_screen(pipe->screen)->caps->has_tcl) {
354        rs->vap_control_status = R300_VAP_TCL_BYPASS;
355    } else {
356        rs->rs.bypass_vs_clip_and_viewport = TRUE;
357        rs->vap_control_status = 0;
358    }
359
360    rs->point_size = pack_float_16_6x(state->point_size) |
361        (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
362
363    rs->point_minmax =
364        ((int)(state->point_size_min * 6.0) <<
365         R300_GA_POINT_MINMAX_MIN_SHIFT) |
366        ((int)(state->point_size_max * 6.0) <<
367         R300_GA_POINT_MINMAX_MAX_SHIFT);
368
369    rs->line_control = pack_float_16_6x(state->line_width) |
370        R300_GA_LINE_CNTL_END_TYPE_COMP;
371
372    /* Radeons don't think in "CW/CCW", they think in "front/back". */
373    if (state->front_winding == PIPE_WINDING_CW) {
374        rs->cull_mode = R300_FRONT_FACE_CW;
375
376        if (state->offset_cw) {
377            rs->polygon_offset_enable |= R300_FRONT_ENABLE;
378        }
379        if (state->offset_ccw) {
380            rs->polygon_offset_enable |= R300_BACK_ENABLE;
381        }
382    } else {
383        rs->cull_mode = R300_FRONT_FACE_CCW;
384
385        if (state->offset_ccw) {
386            rs->polygon_offset_enable |= R300_FRONT_ENABLE;
387        }
388        if (state->offset_cw) {
389            rs->polygon_offset_enable |= R300_BACK_ENABLE;
390        }
391    }
392    if (state->front_winding & state->cull_mode) {
393        rs->cull_mode |= R300_CULL_FRONT;
394    }
395    if (~(state->front_winding) & state->cull_mode) {
396        rs->cull_mode |= R300_CULL_BACK;
397    }
398
399    if (rs->polygon_offset_enable) {
400        rs->depth_offset_front = rs->depth_offset_back =
401            fui(state->offset_units);
402        rs->depth_scale_front = rs->depth_scale_back =
403            fui(state->offset_scale);
404    }
405
406    if (state->line_stipple_enable) {
407        rs->line_stipple_config =
408            R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
409            (fui((float)state->line_stipple_factor) &
410                R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
411        /* XXX this might need to be scaled up */
412        rs->line_stipple_value = state->line_stipple_pattern;
413    }
414
415    if (state->flatshade) {
416        rs->color_control = R300_SHADE_MODEL_FLAT;
417    } else {
418        rs->color_control = R300_SHADE_MODEL_SMOOTH;
419    }
420
421    return (void*)rs;
422}
423
424/* Bind rasterizer state. */
425static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
426{
427    struct r300_context* r300 = r300_context(pipe);
428    struct r300_rs_state* rs = (struct r300_rs_state*)state;
429
430    draw_flush(r300->draw);
431    draw_set_rasterizer_state(r300->draw, &rs->rs);
432
433    r300->rs_state = rs;
434    r300->dirty_state |= R300_NEW_RASTERIZER;
435}
436
437/* Free rasterizer state. */
438static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
439{
440    FREE(state);
441}
442
443static void*
444        r300_create_sampler_state(struct pipe_context* pipe,
445                                  const struct pipe_sampler_state* state)
446{
447    struct r300_context* r300 = r300_context(pipe);
448    struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
449    int lod_bias;
450
451    sampler->filter0 |=
452        (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) |
453        (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) |
454        (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT);
455
456    sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter,
457                                                   state->mag_img_filter,
458                                                   state->min_mip_filter);
459
460    lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1);
461
462    sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT;
463
464    sampler->filter1 |= r300_anisotropy(state->max_anisotropy);
465
466    util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM,
467                    &sampler->border_color);
468
469    /* R500-specific fixups and optimizations */
470    if (r300_screen(r300->context.screen)->caps->is_r500) {
471        sampler->filter1 |= R500_BORDER_FIX;
472    }
473
474    return (void*)sampler;
475}
476
477static void r300_bind_sampler_states(struct pipe_context* pipe,
478                                     unsigned count,
479                                     void** states)
480{
481    struct r300_context* r300 = r300_context(pipe);
482    int i;
483
484    if (count > 8) {
485        return;
486    }
487
488    for (i = 0; i < count; i++) {
489        if (r300->sampler_states[i] != states[i]) {
490            r300->sampler_states[i] = (struct r300_sampler_state*)states[i];
491            r300->dirty_state |= (R300_NEW_SAMPLER << i);
492        }
493    }
494
495    r300->sampler_count = count;
496}
497
498static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
499{
500    FREE(state);
501}
502
503static void r300_set_sampler_textures(struct pipe_context* pipe,
504                                      unsigned count,
505                                      struct pipe_texture** texture)
506{
507    struct r300_context* r300 = r300_context(pipe);
508    int i;
509
510    /* XXX magic num */
511    if (count > 8) {
512        return;
513    }
514
515    for (i = 0; i < count; i++) {
516        if (r300->textures[i] != (struct r300_texture*)texture[i]) {
517            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
518                texture[i]);
519            r300->dirty_state |= (R300_NEW_TEXTURE << i);
520        }
521    }
522
523    for (i = count; i < 8; i++) {
524        if (r300->textures[i]) {
525            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
526                NULL);
527            r300->dirty_state |= (R300_NEW_TEXTURE << i);
528        }
529    }
530
531    r300->texture_count = count;
532}
533
534static void r300_set_scissor_state(struct pipe_context* pipe,
535                                   const struct pipe_scissor_state* state)
536{
537    struct r300_context* r300 = r300_context(pipe);
538
539    if (r300_screen(r300->context.screen)->caps->is_r500) {
540        r300->scissor_state->scissor_top_left =
541            (state->minx << R300_SCISSORS_X_SHIFT) |
542            (state->miny << R300_SCISSORS_Y_SHIFT);
543        r300->scissor_state->scissor_bottom_right =
544            (state->maxx << R300_SCISSORS_X_SHIFT) |
545            (state->maxy << R300_SCISSORS_Y_SHIFT);
546    } else {
547        /* Offset of 1440 in non-R500 chipsets. */
548        r300->scissor_state->scissor_top_left =
549            ((state->minx + 1440) << R300_SCISSORS_X_SHIFT) |
550            ((state->miny + 1440) << R300_SCISSORS_Y_SHIFT);
551        r300->scissor_state->scissor_bottom_right =
552            ((state->maxx + 1440) << R300_SCISSORS_X_SHIFT) |
553            ((state->maxy + 1440) << R300_SCISSORS_Y_SHIFT);
554    }
555
556    r300->dirty_state |= R300_NEW_SCISSOR;
557}
558
559static void r300_set_viewport_state(struct pipe_context* pipe,
560                                    const struct pipe_viewport_state* state)
561{
562    struct r300_context* r300 = r300_context(pipe);
563
564    /* Do the transform in HW. */
565    r300->viewport_state->vte_control = R300_VTX_W0_FMT;
566
567    if (state->scale[0] != 1.0f) {
568        assert(state->scale[0] != 0.0f);
569        r300->viewport_state->xscale = state->scale[0];
570        r300->viewport_state->vte_control |= R300_VPORT_X_SCALE_ENA;
571    }
572    if (state->scale[1] != 1.0f) {
573        assert(state->scale[1] != 0.0f);
574        r300->viewport_state->yscale = state->scale[1];
575        r300->viewport_state->vte_control |= R300_VPORT_Y_SCALE_ENA;
576    }
577    if (state->scale[2] != 1.0f) {
578        assert(state->scale[2] != 0.0f);
579        r300->viewport_state->zscale = state->scale[2];
580        r300->viewport_state->vte_control |= R300_VPORT_Z_SCALE_ENA;
581    }
582    if (state->translate[0] != 0.0f) {
583        r300->viewport_state->xoffset = state->translate[0];
584        r300->viewport_state->vte_control |= R300_VPORT_X_OFFSET_ENA;
585    }
586    if (state->translate[1] != 0.0f) {
587        r300->viewport_state->yoffset = state->translate[1];
588        r300->viewport_state->vte_control |= R300_VPORT_Y_OFFSET_ENA;
589    }
590    if (state->translate[2] != 0.0f) {
591        r300->viewport_state->zoffset = state->translate[2];
592        r300->viewport_state->vte_control |= R300_VPORT_Z_OFFSET_ENA;
593    }
594
595    r300->dirty_state |= R300_NEW_VIEWPORT;
596}
597
598static void r300_set_vertex_buffers(struct pipe_context* pipe,
599                                    unsigned count,
600                                    const struct pipe_vertex_buffer* buffers)
601{
602    struct r300_context* r300 = r300_context(pipe);
603
604    memcpy(r300->vertex_buffers, buffers,
605        sizeof(struct pipe_vertex_buffer) * count);
606
607    r300->vertex_buffer_count = count;
608
609    draw_flush(r300->draw);
610    draw_set_vertex_buffers(r300->draw, count, buffers);
611}
612
613static void r300_set_vertex_elements(struct pipe_context* pipe,
614                                    unsigned count,
615                                    const struct pipe_vertex_element* elements)
616{
617    struct r300_context* r300 = r300_context(pipe);
618
619    draw_flush(r300->draw);
620    draw_set_vertex_elements(r300->draw, count, elements);
621}
622
623static void* r300_create_vs_state(struct pipe_context* pipe,
624                                  const struct pipe_shader_state* shader)
625{
626    struct r300_context* r300 = r300_context(pipe);
627
628    if (r300_screen(pipe->screen)->caps->has_tcl) {
629        struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader);
630        /* Copy state directly into shader. */
631        vs->state = *shader;
632        vs->state.tokens = tgsi_dup_tokens(shader->tokens);
633
634        tgsi_scan_shader(shader->tokens, &vs->info);
635
636        /* Appease Draw. */
637        vs->draw = draw_create_vertex_shader(r300->draw, shader);
638
639        return (void*)vs;
640    } else {
641        return draw_create_vertex_shader(r300->draw, shader);
642    }
643}
644
645static void r300_bind_vs_state(struct pipe_context* pipe, void* shader)
646{
647    struct r300_context* r300 = r300_context(pipe);
648
649    draw_flush(r300->draw);
650
651    if (r300_screen(pipe->screen)->caps->has_tcl) {
652        struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
653
654        if (vs == NULL) {
655            r300->vs = NULL;
656            return;
657        } else if (!vs->translated) {
658            r300_translate_vertex_shader(r300, vs);
659        }
660
661        draw_bind_vertex_shader(r300->draw, vs->draw);
662        r300->vs = vs;
663        r300->dirty_state |= R300_NEW_VERTEX_SHADER;
664    } else {
665        draw_bind_vertex_shader(r300->draw,
666                (struct draw_vertex_shader*)shader);
667    }
668}
669
670static void r300_delete_vs_state(struct pipe_context* pipe, void* shader)
671{
672    struct r300_context* r300 = r300_context(pipe);
673
674    if (r300_screen(pipe->screen)->caps->has_tcl) {
675        struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
676
677        draw_delete_vertex_shader(r300->draw, vs->draw);
678        FREE(vs->state.tokens);
679        FREE(shader);
680    } else {
681        draw_delete_vertex_shader(r300->draw,
682                (struct draw_vertex_shader*)shader);
683    }
684}
685
686void r300_init_state_functions(struct r300_context* r300)
687{
688    r300->context.create_blend_state = r300_create_blend_state;
689    r300->context.bind_blend_state = r300_bind_blend_state;
690    r300->context.delete_blend_state = r300_delete_blend_state;
691
692    r300->context.set_blend_color = r300_set_blend_color;
693
694    r300->context.set_clip_state = r300_set_clip_state;
695
696    r300->context.set_constant_buffer = r300_set_constant_buffer;
697
698    r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state;
699    r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state;
700    r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state;
701
702    r300->context.set_edgeflags = r300_set_edgeflags;
703
704    r300->context.set_framebuffer_state = r300_set_framebuffer_state;
705
706    r300->context.create_fs_state = r300_create_fs_state;
707    r300->context.bind_fs_state = r300_bind_fs_state;
708    r300->context.delete_fs_state = r300_delete_fs_state;
709
710    r300->context.set_polygon_stipple = r300_set_polygon_stipple;
711
712    r300->context.create_rasterizer_state = r300_create_rs_state;
713    r300->context.bind_rasterizer_state = r300_bind_rs_state;
714    r300->context.delete_rasterizer_state = r300_delete_rs_state;
715
716    r300->context.create_sampler_state = r300_create_sampler_state;
717    r300->context.bind_sampler_states = r300_bind_sampler_states;
718    r300->context.delete_sampler_state = r300_delete_sampler_state;
719
720    r300->context.set_sampler_textures = r300_set_sampler_textures;
721
722    r300->context.set_scissor_state = r300_set_scissor_state;
723
724    r300->context.set_viewport_state = r300_set_viewport_state;
725
726    r300->context.set_vertex_buffers = r300_set_vertex_buffers;
727    r300->context.set_vertex_elements = r300_set_vertex_elements;
728
729    r300->context.create_vs_state = r300_create_vs_state;
730    r300->context.bind_vs_state = r300_bind_vs_state;
731    r300->context.delete_vs_state = r300_delete_vs_state;
732}
733