r300_state.c revision cd59933d9f70c6acea63013f1b773b545026bf81 
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    /* 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;
70    }
71
72    if (state->dither) {
73        blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
74                R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
75    }
76
77    return (void*)blend;
78}
79
80/* Bind blend state. */
81static void r300_bind_blend_state(struct pipe_context* pipe,
82                                  void* state)
83{
84    struct r300_context* r300 = r300_context(pipe);
85
86    r300->blend_state = (struct r300_blend_state*)state;
87    r300->dirty_state |= R300_NEW_BLEND;
88}
89
90/* Free blend state. */
91static void r300_delete_blend_state(struct pipe_context* pipe,
92                                    void* state)
93{
94    FREE(state);
95}
96
97/* Set blend color.
98 * Setup both R300 and R500 registers, figure out later which one to write. */
99static void r300_set_blend_color(struct pipe_context* pipe,
100                                 const struct pipe_blend_color* color)
101{
102    struct r300_context* r300 = r300_context(pipe);
103    ubyte ur, ug, ub, ua;
104
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]);
109
110    util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM,
111            &r300->blend_color_state->blend_color);
112
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);
116
117    r300->dirty_state |= R300_NEW_BLEND_COLOR;
118}
119
120static void r300_set_clip_state(struct pipe_context* pipe,
121                                const struct pipe_clip_state* state)
122{
123    struct r300_context* r300 = r300_context(pipe);
124    /* XXX Draw */
125    draw_flush(r300->draw);
126    draw_set_clip_state(r300->draw, state);
127}
128
129static void
130    r300_set_constant_buffer(struct pipe_context* pipe,
131                             uint shader, uint index,
132                             const struct pipe_constant_buffer* buffer)
133{
134    struct r300_context* r300 = r300_context(pipe);
135    int i = r300->shader_constants[shader].user_count;
136
137    /* This entire chunk of code seems ever-so-slightly baked.
138     * It's as if I've got pipe_buffer* matryoshkas... */
139    if (buffer && buffer->buffer && buffer->buffer->size) {
140        void* map = pipe->winsys->buffer_map(pipe->winsys, buffer->buffer,
141                                             PIPE_BUFFER_USAGE_CPU_READ);
142        memcpy(r300->shader_constants[shader].constants,
143            map, buffer->buffer->size);
144        pipe->winsys->buffer_unmap(pipe->winsys, buffer->buffer);
145
146        r300->shader_constants[shader].user_count =
147            buffer->buffer->size / (sizeof(float) * 4);
148    } else {
149        r300->shader_constants[shader].user_count = 0;
150    }
151
152    r300->dirty_state |= R300_NEW_CONSTANTS;
153
154    /* If the number of constants have changed, invalidate the shader. */
155    if (r300->shader_constants[shader].user_count != i) {
156        if (shader == PIPE_SHADER_FRAGMENT && r300->fs) {
157            r300->fs->translated = FALSE;
158            r300_translate_fragment_shader(r300, r300->fs);
159        } else if (shader == PIPE_SHADER_VERTEX && r300->vs) {
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}
261
262static void
263    r300_set_framebuffer_state(struct pipe_context* pipe,
264                               const struct pipe_framebuffer_state* state)
265{
266    struct r300_context* r300 = r300_context(pipe);
267
268    draw_flush(r300->draw);
269
270    r300->framebuffer_state = *state;
271
272    r300->dirty_state |= R300_NEW_FRAMEBUFFERS;
273}
274
275/* Create fragment shader state. */
276static void* r300_create_fs_state(struct pipe_context* pipe,
277                                  const struct pipe_shader_state* shader)
278{
279    struct r300_context* r300 = r300_context(pipe);
280    struct r3xx_fragment_shader* fs = NULL;
281
282    if (r300_screen(r300->context.screen)->caps->is_r500) {
283        fs =
284            (struct r3xx_fragment_shader*)CALLOC_STRUCT(r500_fragment_shader);
285    } else {
286        fs =
287            (struct r3xx_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
288    }
289
290    /* Copy state directly into shader. */
291    fs->state = *shader;
292
293    tgsi_scan_shader(shader->tokens, &fs->info);
294
295    return (void*)fs;
296}
297
298/* Bind fragment shader state. */
299static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
300{
301    struct r300_context* r300 = r300_context(pipe);
302    struct r3xx_fragment_shader* fs = (struct r3xx_fragment_shader*)shader;
303
304    if (fs == NULL) {
305        r300->fs = NULL;
306        return;
307    } else if (!fs->translated) {
308        r300_translate_fragment_shader(r300, fs);
309    }
310
311    fs->translated = TRUE;
312    r300->fs = fs;
313
314    r300->dirty_state |= R300_NEW_FRAGMENT_SHADER;
315}
316
317/* Delete fragment shader state. */
318static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
319{
320    FREE(shader);
321}
322
323static void r300_set_polygon_stipple(struct pipe_context* pipe,
324                                     const struct pipe_poly_stipple* state)
325{
326    /* XXX */
327}
328
329/* Create a new rasterizer state based on the CSO rasterizer state.
330 *
331 * This is a very large chunk of state, and covers most of the graphics
332 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
333 *
334 * In a not entirely unironic sidenote, this state has nearly nothing to do
335 * with the actual block on the Radeon called the rasterizer (RS). */
336static void* r300_create_rs_state(struct pipe_context* pipe,
337                                  const struct pipe_rasterizer_state* state)
338{
339    struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
340
341    /* Copy rasterizer state for Draw. */
342    rs->rs = *state;
343
344    /* If bypassing TCL, or if no TCL engine is present, turn off the HW TCL.
345     * Else, enable HW TCL and force Draw's TCL off. */
346    if (state->bypass_vs_clip_and_viewport ||
347            !r300_screen(pipe->screen)->caps->has_tcl) {
348        rs->vap_control_status = R300_VAP_TCL_BYPASS;
349    } else {
350        rs->rs.bypass_vs_clip_and_viewport = TRUE;
351        rs->vap_control_status = 0;
352    }
353
354    rs->point_size = pack_float_16_6x(state->point_size) |
355        (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
356
357    rs->point_minmax =
358        ((int)(state->point_size_min * 6.0) <<
359         R300_GA_POINT_MINMAX_MIN_SHIFT) |
360        ((int)(state->point_size_max * 6.0) <<
361         R300_GA_POINT_MINMAX_MAX_SHIFT);
362
363    rs->line_control = pack_float_16_6x(state->line_width) |
364        R300_GA_LINE_CNTL_END_TYPE_COMP;
365
366    /* Radeons don't think in "CW/CCW", they think in "front/back". */
367    if (state->front_winding == PIPE_WINDING_CW) {
368        rs->cull_mode = R300_FRONT_FACE_CW;
369
370        if (state->offset_cw) {
371            rs->polygon_offset_enable |= R300_FRONT_ENABLE;
372        }
373        if (state->offset_ccw) {
374            rs->polygon_offset_enable |= R300_BACK_ENABLE;
375        }
376    } else {
377        rs->cull_mode = R300_FRONT_FACE_CCW;
378
379        if (state->offset_ccw) {
380            rs->polygon_offset_enable |= R300_FRONT_ENABLE;
381        }
382        if (state->offset_cw) {
383            rs->polygon_offset_enable |= R300_BACK_ENABLE;
384        }
385    }
386    if (state->front_winding & state->cull_mode) {
387        rs->cull_mode |= R300_CULL_FRONT;
388    }
389    if (~(state->front_winding) & state->cull_mode) {
390        rs->cull_mode |= R300_CULL_BACK;
391    }
392
393    if (rs->polygon_offset_enable) {
394        rs->depth_offset_front = rs->depth_offset_back =
395            fui(state->offset_units);
396        rs->depth_scale_front = rs->depth_scale_back =
397            fui(state->offset_scale);
398    }
399
400    if (state->line_stipple_enable) {
401        rs->line_stipple_config =
402            R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
403            (fui((float)state->line_stipple_factor) &
404                R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
405        /* XXX this might need to be scaled up */
406        rs->line_stipple_value = state->line_stipple_pattern;
407    }
408
409    if (state->flatshade) {
410        rs->color_control = R300_SHADE_MODEL_FLAT;
411    } else {
412        rs->color_control = R300_SHADE_MODEL_SMOOTH;
413    }
414
415    return (void*)rs;
416}
417
418/* Bind rasterizer state. */
419static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
420{
421    struct r300_context* r300 = r300_context(pipe);
422    struct r300_rs_state* rs = (struct r300_rs_state*)state;
423
424    draw_flush(r300->draw);
425    draw_set_rasterizer_state(r300->draw, &rs->rs);
426
427    r300->rs_state = rs;
428    r300->dirty_state |= R300_NEW_RASTERIZER;
429}
430
431/* Free rasterizer state. */
432static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
433{
434    FREE(state);
435}
436
437static void*
438        r300_create_sampler_state(struct pipe_context* pipe,
439                                  const struct pipe_sampler_state* state)
440{
441    struct r300_context* r300 = r300_context(pipe);
442    struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
443    int lod_bias;
444
445    sampler->filter0 |=
446        (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) |
447        (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) |
448        (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT);
449
450    sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter,
451                                                   state->mag_img_filter,
452                                                   state->min_mip_filter);
453
454    lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1);
455
456    sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT;
457
458    sampler->filter1 |= r300_anisotropy(state->max_anisotropy);
459
460    util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM,
461                    &sampler->border_color);
462
463    /* R500-specific fixups and optimizations */
464    if (r300_screen(r300->context.screen)->caps->is_r500) {
465        sampler->filter1 |= R500_BORDER_FIX;
466    }
467
468    return (void*)sampler;
469}
470
471static void r300_bind_sampler_states(struct pipe_context* pipe,
472                                     unsigned count,
473                                     void** states)
474{
475    struct r300_context* r300 = r300_context(pipe);
476    int i;
477
478    if (count > 8) {
479        return;
480    }
481
482    for (i = 0; i < count; i++) {
483        if (r300->sampler_states[i] != states[i]) {
484            r300->sampler_states[i] = (struct r300_sampler_state*)states[i];
485            r300->dirty_state |= (R300_NEW_SAMPLER << i);
486        }
487    }
488
489    r300->sampler_count = count;
490}
491
492static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
493{
494    FREE(state);
495}
496
497static void r300_set_sampler_textures(struct pipe_context* pipe,
498                                      unsigned count,
499                                      struct pipe_texture** texture)
500{
501    struct r300_context* r300 = r300_context(pipe);
502    int i;
503
504    /* XXX magic num */
505    if (count > 8) {
506        return;
507    }
508
509    for (i = 0; i < count; i++) {
510        if (r300->textures[i] != (struct r300_texture*)texture[i]) {
511            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
512                texture[i]);
513            r300->dirty_state |= (R300_NEW_TEXTURE << i);
514        }
515    }
516
517    for (i = count; i < 8; i++) {
518        if (r300->textures[i]) {
519            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
520                NULL);
521            r300->dirty_state |= (R300_NEW_TEXTURE << i);
522        }
523    }
524
525    r300->texture_count = count;
526}
527
528static void r300_set_scissor_state(struct pipe_context* pipe,
529                                   const struct pipe_scissor_state* state)
530{
531    struct r300_context* r300 = r300_context(pipe);
532
533    if (r300_screen(r300->context.screen)->caps->is_r500) {
534        r300->scissor_state->scissor_top_left =
535            (state->minx << R300_SCISSORS_X_SHIFT) |
536            (state->miny << R300_SCISSORS_Y_SHIFT);
537        r300->scissor_state->scissor_bottom_right =
538            (state->maxx << R300_SCISSORS_X_SHIFT) |
539            (state->maxy << R300_SCISSORS_Y_SHIFT);
540    } else {
541        /* Offset of 1440 in non-R500 chipsets. */
542        r300->scissor_state->scissor_top_left =
543            ((state->minx + 1440) << R300_SCISSORS_X_SHIFT) |
544            ((state->miny + 1440) << R300_SCISSORS_Y_SHIFT);
545        r300->scissor_state->scissor_bottom_right =
546            ((state->maxx + 1440) << R300_SCISSORS_X_SHIFT) |
547            ((state->maxy + 1440) << R300_SCISSORS_Y_SHIFT);
548    }
549
550    r300->dirty_state |= R300_NEW_SCISSOR;
551}
552
553static void r300_set_viewport_state(struct pipe_context* pipe,
554                                    const struct pipe_viewport_state* state)
555{
556    struct r300_context* r300 = r300_context(pipe);
557
558    draw_flush(r300->draw);
559
560    if (r300_screen(r300->context.screen)->caps->has_tcl) {
561        /* Do the transform in HW. */
562        r300->viewport_state->vte_control = R300_VTX_W0_FMT;
563
564        if (state->scale[0] != 1.0f) {
565            assert(state->scale[0] != 0.0f);
566            r300->viewport_state->xscale = state->scale[0];
567            r300->viewport_state->vte_control |= R300_VPORT_X_SCALE_ENA;
568        }
569        if (state->scale[1] != 1.0f) {
570            assert(state->scale[1] != 0.0f);
571            r300->viewport_state->yscale = state->scale[1];
572            r300->viewport_state->vte_control |= R300_VPORT_Y_SCALE_ENA;
573        }
574        if (state->scale[2] != 1.0f) {
575            assert(state->scale[2] != 0.0f);
576            r300->viewport_state->zscale = state->scale[2];
577            r300->viewport_state->vte_control |= R300_VPORT_Z_SCALE_ENA;
578        }
579        if (state->translate[0] != 0.0f) {
580            r300->viewport_state->xoffset = state->translate[0];
581            r300->viewport_state->vte_control |= R300_VPORT_X_OFFSET_ENA;
582        }
583        if (state->translate[1] != 0.0f) {
584            r300->viewport_state->yoffset = state->translate[1];
585            r300->viewport_state->vte_control |= R300_VPORT_Y_OFFSET_ENA;
586        }
587        if (state->translate[2] != 0.0f) {
588            r300->viewport_state->zoffset = state->translate[2];
589            r300->viewport_state->vte_control |= R300_VPORT_Z_OFFSET_ENA;
590        }
591    } else {
592        r300->viewport_state->vte_control = 0;
593        /* Have Draw do the actual transform. */
594        draw_set_viewport_state(r300->draw, state);
595    }
596
597    r300->dirty_state |= R300_NEW_VIEWPORT;
598}
599
600static void r300_set_vertex_buffers(struct pipe_context* pipe,
601                                    unsigned count,
602                                    const struct pipe_vertex_buffer* buffers)
603{
604    struct r300_context* r300 = r300_context(pipe);
605
606    memcpy(r300->vertex_buffers, buffers,
607        sizeof(struct pipe_vertex_buffer) * count);
608
609    r300->vertex_buffer_count = count;
610
611    draw_flush(r300->draw);
612    draw_set_vertex_buffers(r300->draw, count, buffers);
613}
614
615static void r300_set_vertex_elements(struct pipe_context* pipe,
616                                    unsigned count,
617                                    const struct pipe_vertex_element* elements)
618{
619    struct r300_context* r300 = r300_context(pipe);
620
621    draw_flush(r300->draw);
622    draw_set_vertex_elements(r300->draw, count, elements);
623}
624
625static void* r300_create_vs_state(struct pipe_context* pipe,
626                                  const struct pipe_shader_state* shader)
627{
628    struct r300_context* r300 = r300_context(pipe);
629
630    if (r300_screen(pipe->screen)->caps->has_tcl) {
631        struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader);
632        /* Copy state directly into shader. */
633        vs->state = *shader;
634
635        tgsi_scan_shader(shader->tokens, &vs->info);
636
637        /* Appease Draw. */
638        vs->draw = draw_create_vertex_shader(r300->draw, shader);
639
640        return (void*)vs;
641    } else {
642        return draw_create_vertex_shader(r300->draw, shader);
643    }
644}
645
646static void r300_bind_vs_state(struct pipe_context* pipe, void* shader)
647{
648    struct r300_context* r300 = r300_context(pipe);
649
650    draw_flush(r300->draw);
651
652    if (r300_screen(pipe->screen)->caps->has_tcl) {
653        struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
654
655        if (vs == NULL) {
656            r300->vs = NULL;
657            return;
658        } else if (!vs->translated) {
659            r300_translate_vertex_shader(r300, vs);
660        }
661
662        draw_bind_vertex_shader(r300->draw, vs->draw);
663        r300->vs = vs;
664        r300->dirty_state |= R300_NEW_VERTEX_SHADER;
665    } else {
666        draw_bind_vertex_shader(r300->draw,
667                (struct draw_vertex_shader*)shader);
668    }
669}
670
671static void r300_delete_vs_state(struct pipe_context* pipe, void* shader)
672{
673    struct r300_context* r300 = r300_context(pipe);
674
675    if (r300_screen(pipe->screen)->caps->has_tcl) {
676        struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
677
678        draw_delete_vertex_shader(r300->draw, vs->draw);
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