r300_state.c revision bcfde429139476c2d04baddaf671651cfc860145 
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 "draw/draw_context.h"
24
25#include "util/u_math.h"
26#include "util/u_memory.h"
27#include "util/u_pack_color.h"
28
29#include "tgsi/tgsi_parse.h"
30
31#include "pipe/p_config.h"
32#include "pipe/internal/p_winsys_screen.h"
33
34#include "r300_context.h"
35#include "r300_reg.h"
36#include "r300_screen.h"
37#include "r300_state_inlines.h"
38#include "r300_fs.h"
39#include "r300_vs.h"
40
41/* r300_state: Functions used to intialize state context by translating
42 * Gallium state objects into semi-native r300 state objects. */
43
44/* Create a new blend state based on the CSO blend state.
45 *
46 * This encompasses alpha blending, logic/raster ops, and blend dithering. */
47static void* r300_create_blend_state(struct pipe_context* pipe,
48                                     const struct pipe_blend_state* state)
49{
50    struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state);
51
52    if (state->blend_enable)
53    {
54        unsigned eqRGB = state->rgb_func;
55        unsigned srcRGB = state->rgb_src_factor;
56        unsigned dstRGB = state->rgb_dst_factor;
57
58        unsigned eqA = state->alpha_func;
59        unsigned srcA = state->alpha_src_factor;
60        unsigned dstA = state->alpha_dst_factor;
61
62        /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha,
63         * this is just the crappy D3D naming */
64        blend->blend_control = R300_ALPHA_BLEND_ENABLE |
65            r300_translate_blend_function(eqRGB) |
66            ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) |
67            ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT);
68
69        /* optimization: some operations do not require the destination color */
70        if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN ||
71            eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX ||
72            dstRGB != PIPE_BLENDFACTOR_ZERO ||
73            dstA != PIPE_BLENDFACTOR_ZERO ||
74            srcRGB == PIPE_BLENDFACTOR_DST_COLOR ||
75            srcRGB == PIPE_BLENDFACTOR_DST_ALPHA ||
76            srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR ||
77            srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA ||
78            srcA == PIPE_BLENDFACTOR_DST_ALPHA ||
79            srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA)
80            blend->blend_control |= R300_READ_ENABLE;
81
82        /* XXX implement the optimization with DISCARD_SRC_PIXELS*/
83        /* XXX implement the optimization with SRC_ALPHA_?_NO_READ */
84
85        /* separate alpha */
86        if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) {
87            blend->blend_control |= R300_SEPARATE_ALPHA_ENABLE;
88            blend->alpha_blend_control =
89                r300_translate_blend_function(eqA) |
90                (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) |
91                (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT);
92        }
93    }
94
95    /* PIPE_LOGICOP_* don't need to be translated, fortunately. */
96    if (state->logicop_enable) {
97        blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE |
98                (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT;
99    }
100
101    if (state->dither) {
102        blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
103                R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
104    }
105
106    return (void*)blend;
107}
108
109/* Bind blend state. */
110static void r300_bind_blend_state(struct pipe_context* pipe,
111                                  void* state)
112{
113    struct r300_context* r300 = r300_context(pipe);
114
115    r300->blend_state = (struct r300_blend_state*)state;
116    r300->dirty_state |= R300_NEW_BLEND;
117}
118
119/* Free blend state. */
120static void r300_delete_blend_state(struct pipe_context* pipe,
121                                    void* state)
122{
123    FREE(state);
124}
125
126/* Convert float to 10bit integer */
127static unsigned float_to_fixed10(float f)
128{
129    return CLAMP((unsigned)(f * 1023.9f), 0, 1023);
130}
131
132/* Set blend color.
133 * Setup both R300 and R500 registers, figure out later which one to write. */
134static void r300_set_blend_color(struct pipe_context* pipe,
135                                 const struct pipe_blend_color* color)
136{
137    struct r300_context* r300 = r300_context(pipe);
138
139    util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM,
140            &r300->blend_color_state->blend_color);
141
142    /* XXX if FP16 blending is enabled, we should use the FP16 format */
143    r300->blend_color_state->blend_color_red_alpha =
144        float_to_fixed10(color->color[0]) |
145        (float_to_fixed10(color->color[3]) << 16);
146    r300->blend_color_state->blend_color_green_blue =
147        float_to_fixed10(color->color[2]) |
148        (float_to_fixed10(color->color[1]) << 16);
149
150    r300->dirty_state |= R300_NEW_BLEND_COLOR;
151}
152
153static void r300_set_clip_state(struct pipe_context* pipe,
154                                const struct pipe_clip_state* state)
155{
156    struct r300_context* r300 = r300_context(pipe);
157
158    if (r300_screen(pipe->screen)->caps->has_tcl) {
159        r300->clip_state = *state;
160        r300->dirty_state |= R300_NEW_CLIP;
161    } else {
162        draw_flush(r300->draw);
163        draw_set_clip_state(r300->draw, state);
164    }
165}
166
167static void
168    r300_set_constant_buffer(struct pipe_context* pipe,
169                             uint shader, uint index,
170                             const struct pipe_constant_buffer* buffer)
171{
172    struct r300_context* r300 = r300_context(pipe);
173
174    /* This entire chunk of code seems ever-so-slightly baked.
175     * It's as if I've got pipe_buffer* matryoshkas... */
176    if (buffer && buffer->buffer && buffer->buffer->size) {
177        void* map = pipe->winsys->buffer_map(pipe->winsys, buffer->buffer,
178                                             PIPE_BUFFER_USAGE_CPU_READ);
179        memcpy(r300->shader_constants[shader].constants,
180            map, buffer->buffer->size);
181        pipe->winsys->buffer_unmap(pipe->winsys, buffer->buffer);
182
183        r300->shader_constants[shader].count =
184            buffer->buffer->size / (sizeof(float) * 4);
185    } else {
186        r300->shader_constants[shader].count = 0;
187    }
188
189    r300->dirty_state |= R300_NEW_CONSTANTS;
190}
191
192/* Create a new depth, stencil, and alpha state based on the CSO dsa state.
193 *
194 * This contains the depth buffer, stencil buffer, alpha test, and such.
195 * On the Radeon, depth and stencil buffer setup are intertwined, which is
196 * the reason for some of the strange-looking assignments across registers. */
197static void*
198        r300_create_dsa_state(struct pipe_context* pipe,
199                              const struct pipe_depth_stencil_alpha_state* state)
200{
201    struct r300_capabilities *caps =
202        r300_screen(r300_context(pipe)->context.screen)->caps;
203    struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
204
205    /* Depth test setup. */
206    if (state->depth.enabled) {
207        dsa->z_buffer_control |= R300_Z_ENABLE;
208
209        if (state->depth.writemask) {
210            dsa->z_buffer_control |= R300_Z_WRITE_ENABLE;
211        }
212
213        dsa->z_stencil_control |=
214            (r300_translate_depth_stencil_function(state->depth.func) <<
215                R300_Z_FUNC_SHIFT);
216    }
217
218    /* Stencil buffer setup. */
219    if (state->stencil[0].enabled) {
220        dsa->z_buffer_control |= R300_STENCIL_ENABLE;
221        dsa->z_stencil_control |=
222            (r300_translate_depth_stencil_function(state->stencil[0].func) <<
223                R300_S_FRONT_FUNC_SHIFT) |
224            (r300_translate_stencil_op(state->stencil[0].fail_op) <<
225                R300_S_FRONT_SFAIL_OP_SHIFT) |
226            (r300_translate_stencil_op(state->stencil[0].zpass_op) <<
227                R300_S_FRONT_ZPASS_OP_SHIFT) |
228            (r300_translate_stencil_op(state->stencil[0].zfail_op) <<
229                R300_S_FRONT_ZFAIL_OP_SHIFT);
230
231        dsa->stencil_ref_mask = (state->stencil[0].ref_value) |
232                (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) |
233                (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT);
234
235        if (state->stencil[1].enabled) {
236            dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK;
237            dsa->z_stencil_control |=
238            (r300_translate_depth_stencil_function(state->stencil[1].func) <<
239                R300_S_BACK_FUNC_SHIFT) |
240            (r300_translate_stencil_op(state->stencil[1].fail_op) <<
241                R300_S_BACK_SFAIL_OP_SHIFT) |
242            (r300_translate_stencil_op(state->stencil[1].zpass_op) <<
243                R300_S_BACK_ZPASS_OP_SHIFT) |
244            (r300_translate_stencil_op(state->stencil[1].zfail_op) <<
245                R300_S_BACK_ZFAIL_OP_SHIFT);
246
247            /* XXX it seems r3xx doesn't support STENCILREFMASK_BF */
248            if (caps->is_r500)
249            {
250                dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK;
251                dsa->stencil_ref_bf = (state->stencil[1].ref_value) |
252                    (state->stencil[1].valuemask <<
253                    R300_STENCILMASK_SHIFT) |
254                    (state->stencil[1].writemask <<
255                    R300_STENCILWRITEMASK_SHIFT);
256            }
257        }
258    }
259
260    /* Alpha test setup. */
261    if (state->alpha.enabled) {
262        dsa->alpha_function =
263            r300_translate_alpha_function(state->alpha.func) |
264            R300_FG_ALPHA_FUNC_ENABLE;
265
266        /* XXX figure out why emitting 10bit alpha ref causes CS to dump */
267        /* always use 8bit alpha ref */
268        dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value);
269
270        if (caps->is_r500)
271            dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT;
272    }
273
274    return (void*)dsa;
275}
276
277/* Bind DSA state. */
278static void r300_bind_dsa_state(struct pipe_context* pipe,
279                                void* state)
280{
281    struct r300_context* r300 = r300_context(pipe);
282
283    r300->dsa_state = (struct r300_dsa_state*)state;
284    r300->dirty_state |= R300_NEW_DSA;
285}
286
287/* Free DSA state. */
288static void r300_delete_dsa_state(struct pipe_context* pipe,
289                                  void* state)
290{
291    FREE(state);
292}
293
294static void r300_set_edgeflags(struct pipe_context* pipe,
295                               const unsigned* bitfield)
296{
297    /* XXX you know it's bad when i915 has this blank too */
298    /* XXX and even worse, I have no idea WTF the bitfield is */
299}
300
301static void
302    r300_set_framebuffer_state(struct pipe_context* pipe,
303                               const struct pipe_framebuffer_state* state)
304{
305    struct r300_context* r300 = r300_context(pipe);
306
307    draw_flush(r300->draw);
308
309    r300->framebuffer_state = *state;
310
311    r300->dirty_state |= R300_NEW_FRAMEBUFFERS;
312}
313
314/* Create fragment shader state. */
315static void* r300_create_fs_state(struct pipe_context* pipe,
316                                  const struct pipe_shader_state* shader)
317{
318    struct r300_fragment_shader* fs = NULL;
319
320    fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
321
322    /* Copy state directly into shader. */
323    fs->state = *shader;
324    fs->state.tokens = tgsi_dup_tokens(shader->tokens);
325
326    tgsi_scan_shader(shader->tokens, &fs->info);
327
328    return (void*)fs;
329}
330
331/* Bind fragment shader state. */
332static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
333{
334    struct r300_context* r300 = r300_context(pipe);
335    struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader;
336
337    if (fs == NULL) {
338        r300->fs = NULL;
339        return;
340    } else if (!fs->translated) {
341        r300_translate_fragment_shader(r300, fs);
342    }
343
344    r300->fs = fs;
345
346    r300->dirty_state |= R300_NEW_FRAGMENT_SHADER;
347}
348
349/* Delete fragment shader state. */
350static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
351{
352    struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader;
353    rc_constants_destroy(&fs->code.constants);
354    FREE((void*)fs->state.tokens);
355    FREE(shader);
356}
357
358static void r300_set_polygon_stipple(struct pipe_context* pipe,
359                                     const struct pipe_poly_stipple* state)
360{
361    /* XXX no idea how to set this up, but not terribly important */
362}
363
364/* Create a new rasterizer state based on the CSO rasterizer state.
365 *
366 * This is a very large chunk of state, and covers most of the graphics
367 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
368 *
369 * In a not entirely unironic sidenote, this state has nearly nothing to do
370 * with the actual block on the Radeon called the rasterizer (RS). */
371static void* r300_create_rs_state(struct pipe_context* pipe,
372                                  const struct pipe_rasterizer_state* state)
373{
374    struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
375
376    /* Copy rasterizer state for Draw. */
377    rs->rs = *state;
378
379    rs->enable_vte = !state->bypass_vs_clip_and_viewport;
380
381#ifdef PIPE_ARCH_LITTLE_ENDIAN
382    rs->vap_control_status = R300_VC_NO_SWAP;
383#else
384    rs->vap_control_status = R300_VC_32BIT_SWAP;
385#endif
386
387    /* If bypassing TCL, or if no TCL engine is present, turn off the HW TCL.
388     * Else, enable HW TCL and force Draw's TCL off. */
389    if (state->bypass_vs_clip_and_viewport ||
390            !r300_screen(pipe->screen)->caps->has_tcl) {
391        rs->vap_control_status |= R300_VAP_TCL_BYPASS;
392    } else {
393        rs->rs.bypass_vs_clip_and_viewport = TRUE;
394    }
395
396    rs->point_size = pack_float_16_6x(state->point_size) |
397        (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
398
399    rs->point_minmax =
400        ((int)(state->point_size_min * 6.0) <<
401         R300_GA_POINT_MINMAX_MIN_SHIFT) |
402        ((int)(state->point_size_max * 6.0) <<
403         R300_GA_POINT_MINMAX_MAX_SHIFT);
404
405    rs->line_control = pack_float_16_6x(state->line_width) |
406        R300_GA_LINE_CNTL_END_TYPE_COMP;
407
408    /* Radeons don't think in "CW/CCW", they think in "front/back". */
409    if (state->front_winding == PIPE_WINDING_CW) {
410        rs->cull_mode = R300_FRONT_FACE_CW;
411
412        if (state->offset_cw) {
413            rs->polygon_offset_enable |= R300_FRONT_ENABLE;
414        }
415        if (state->offset_ccw) {
416            rs->polygon_offset_enable |= R300_BACK_ENABLE;
417        }
418    } else {
419        rs->cull_mode = R300_FRONT_FACE_CCW;
420
421        if (state->offset_ccw) {
422            rs->polygon_offset_enable |= R300_FRONT_ENABLE;
423        }
424        if (state->offset_cw) {
425            rs->polygon_offset_enable |= R300_BACK_ENABLE;
426        }
427    }
428    if (state->front_winding & state->cull_mode) {
429        rs->cull_mode |= R300_CULL_FRONT;
430    }
431    if (~(state->front_winding) & state->cull_mode) {
432        rs->cull_mode |= R300_CULL_BACK;
433    }
434
435    if (rs->polygon_offset_enable) {
436        rs->depth_offset_front = rs->depth_offset_back =
437            fui(state->offset_units);
438        rs->depth_scale_front = rs->depth_scale_back =
439            fui(state->offset_scale);
440    }
441
442    if (state->line_stipple_enable) {
443        rs->line_stipple_config =
444            R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
445            (fui((float)state->line_stipple_factor) &
446                R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
447        /* XXX this might need to be scaled up */
448        rs->line_stipple_value = state->line_stipple_pattern;
449    }
450
451    if (state->flatshade) {
452        rs->color_control = R300_SHADE_MODEL_FLAT;
453    } else {
454        rs->color_control = R300_SHADE_MODEL_SMOOTH;
455    }
456
457    if (!state->flatshade_first) {
458        rs->color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
459    }
460
461    return (void*)rs;
462}
463
464/* Bind rasterizer state. */
465static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
466{
467    struct r300_context* r300 = r300_context(pipe);
468    struct r300_rs_state* rs = (struct r300_rs_state*)state;
469
470    draw_flush(r300->draw);
471    draw_set_rasterizer_state(r300->draw, &rs->rs);
472
473    r300->rs_state = rs;
474    r300->dirty_state |= R300_NEW_RASTERIZER;
475    r300->dirty_state |= R300_NEW_RS_BLOCK;
476    r300->dirty_state |= R300_NEW_SCISSOR;
477    r300->dirty_state |= R300_NEW_VIEWPORT;
478}
479
480/* Free rasterizer state. */
481static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
482{
483    FREE(state);
484}
485
486static void*
487        r300_create_sampler_state(struct pipe_context* pipe,
488                                  const struct pipe_sampler_state* state)
489{
490    struct r300_context* r300 = r300_context(pipe);
491    struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
492    int lod_bias;
493
494    sampler->filter0 |=
495        (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) |
496        (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) |
497        (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT);
498
499    sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter,
500                                                   state->mag_img_filter,
501                                                   state->min_mip_filter);
502
503    lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1);
504
505    sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT;
506
507    sampler->filter1 |= r300_anisotropy(state->max_anisotropy);
508
509    util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM,
510                    &sampler->border_color);
511
512    /* R500-specific fixups and optimizations */
513    if (r300_screen(r300->context.screen)->caps->is_r500) {
514        sampler->filter1 |= R500_BORDER_FIX;
515    }
516
517    return (void*)sampler;
518}
519
520static void r300_bind_sampler_states(struct pipe_context* pipe,
521                                     unsigned count,
522                                     void** states)
523{
524    struct r300_context* r300 = r300_context(pipe);
525    int i;
526
527    if (count > 8) {
528        return;
529    }
530
531    for (i = 0; i < count; i++) {
532        if (r300->sampler_states[i] != states[i]) {
533            r300->sampler_states[i] = (struct r300_sampler_state*)states[i];
534            r300->dirty_state |= (R300_NEW_SAMPLER << i);
535        }
536    }
537
538    r300->sampler_count = count;
539}
540
541static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
542{
543    FREE(state);
544}
545
546static void r300_set_sampler_textures(struct pipe_context* pipe,
547                                      unsigned count,
548                                      struct pipe_texture** texture)
549{
550    struct r300_context* r300 = r300_context(pipe);
551    int i;
552
553    /* XXX magic num */
554    if (count > 8) {
555        return;
556    }
557
558    for (i = 0; i < count; i++) {
559        if (r300->textures[i] != (struct r300_texture*)texture[i]) {
560            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
561                texture[i]);
562            r300->dirty_state |= (R300_NEW_TEXTURE << i);
563        }
564    }
565
566    for (i = count; i < 8; i++) {
567        if (r300->textures[i]) {
568            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
569                NULL);
570            r300->dirty_state |= (R300_NEW_TEXTURE << i);
571        }
572    }
573
574    r300->texture_count = count;
575}
576
577static void r300_set_scissor_state(struct pipe_context* pipe,
578                                   const struct pipe_scissor_state* state)
579{
580    struct r300_context* r300 = r300_context(pipe);
581
582    if (r300_screen(r300->context.screen)->caps->is_r500) {
583        r300->scissor_state->scissor_top_left =
584            (state->minx << R300_SCISSORS_X_SHIFT) |
585            (state->miny << R300_SCISSORS_Y_SHIFT);
586        r300->scissor_state->scissor_bottom_right =
587            ((state->maxx - 1) << R300_SCISSORS_X_SHIFT) |
588            ((state->maxy - 1) << R300_SCISSORS_Y_SHIFT);
589    } else {
590        /* Offset of 1440 in non-R500 chipsets. */
591        r300->scissor_state->scissor_top_left =
592            ((state->minx + 1440) << R300_SCISSORS_X_SHIFT) |
593            ((state->miny + 1440) << R300_SCISSORS_Y_SHIFT);
594        r300->scissor_state->scissor_bottom_right =
595            (((state->maxx - 1) + 1440) << R300_SCISSORS_X_SHIFT) |
596            (((state->maxy - 1) + 1440) << R300_SCISSORS_Y_SHIFT);
597    }
598
599    r300->dirty_state |= R300_NEW_SCISSOR;
600}
601
602static void r300_set_viewport_state(struct pipe_context* pipe,
603                                    const struct pipe_viewport_state* state)
604{
605    struct r300_context* r300 = r300_context(pipe);
606
607    /* Do the transform in HW. */
608    r300->viewport_state->vte_control = R300_VTX_W0_FMT;
609
610    if (state->scale[0] != 1.0f) {
611        assert(state->scale[0] != 0.0f);
612        r300->viewport_state->xscale = state->scale[0];
613        r300->viewport_state->vte_control |= R300_VPORT_X_SCALE_ENA;
614    }
615    if (state->scale[1] != 1.0f) {
616        assert(state->scale[1] != 0.0f);
617        r300->viewport_state->yscale = state->scale[1];
618        r300->viewport_state->vte_control |= R300_VPORT_Y_SCALE_ENA;
619    }
620    if (state->scale[2] != 1.0f) {
621        assert(state->scale[2] != 0.0f);
622        r300->viewport_state->zscale = state->scale[2];
623        r300->viewport_state->vte_control |= R300_VPORT_Z_SCALE_ENA;
624    }
625    if (state->translate[0] != 0.0f) {
626        r300->viewport_state->xoffset = state->translate[0];
627        r300->viewport_state->vte_control |= R300_VPORT_X_OFFSET_ENA;
628    }
629    if (state->translate[1] != 0.0f) {
630        r300->viewport_state->yoffset = state->translate[1];
631        r300->viewport_state->vte_control |= R300_VPORT_Y_OFFSET_ENA;
632    }
633    if (state->translate[2] != 0.0f) {
634        r300->viewport_state->zoffset = state->translate[2];
635        r300->viewport_state->vte_control |= R300_VPORT_Z_OFFSET_ENA;
636    }
637
638    r300->dirty_state |= R300_NEW_VIEWPORT;
639}
640
641static void r300_set_vertex_buffers(struct pipe_context* pipe,
642                                    unsigned count,
643                                    const struct pipe_vertex_buffer* buffers)
644{
645    struct r300_context* r300 = r300_context(pipe);
646
647    memcpy(r300->vertex_buffers, buffers,
648        sizeof(struct pipe_vertex_buffer) * count);
649
650    r300->vertex_buffer_count = count;
651
652    draw_flush(r300->draw);
653    draw_set_vertex_buffers(r300->draw, count, buffers);
654}
655
656static void r300_set_vertex_elements(struct pipe_context* pipe,
657                                    unsigned count,
658                                    const struct pipe_vertex_element* elements)
659{
660    struct r300_context* r300 = r300_context(pipe);
661
662    draw_flush(r300->draw);
663    draw_set_vertex_elements(r300->draw, count, elements);
664}
665
666static void* r300_create_vs_state(struct pipe_context* pipe,
667                                  const struct pipe_shader_state* shader)
668{
669    struct r300_context* r300 = r300_context(pipe);
670
671    if (r300_screen(pipe->screen)->caps->has_tcl) {
672        struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader);
673        /* Copy state directly into shader. */
674        vs->state = *shader;
675        vs->state.tokens = tgsi_dup_tokens(shader->tokens);
676
677        tgsi_scan_shader(shader->tokens, &vs->info);
678
679        /* Appease Draw. */
680        vs->draw = draw_create_vertex_shader(r300->draw, shader);
681
682        return (void*)vs;
683    } else {
684        return draw_create_vertex_shader(r300->draw, shader);
685    }
686}
687
688static void r300_bind_vs_state(struct pipe_context* pipe, void* shader)
689{
690    struct r300_context* r300 = r300_context(pipe);
691
692    draw_flush(r300->draw);
693
694    if (r300_screen(pipe->screen)->caps->has_tcl) {
695        struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
696
697        if (vs == NULL) {
698            r300->vs = NULL;
699            return;
700        } else if (!vs->translated) {
701            r300_translate_vertex_shader(r300, vs);
702        }
703
704        draw_bind_vertex_shader(r300->draw, vs->draw);
705        r300->vs = vs;
706        r300->dirty_state |= R300_NEW_VERTEX_SHADER;
707    } else {
708        draw_bind_vertex_shader(r300->draw,
709                (struct draw_vertex_shader*)shader);
710    }
711}
712
713static void r300_delete_vs_state(struct pipe_context* pipe, void* shader)
714{
715    struct r300_context* r300 = r300_context(pipe);
716
717    if (r300_screen(pipe->screen)->caps->has_tcl) {
718        struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
719
720        rc_constants_destroy(&vs->code.constants);
721        draw_delete_vertex_shader(r300->draw, vs->draw);
722        FREE((void*)vs->state.tokens);
723        FREE(shader);
724    } else {
725        draw_delete_vertex_shader(r300->draw,
726                (struct draw_vertex_shader*)shader);
727    }
728}
729
730void r300_init_state_functions(struct r300_context* r300)
731{
732    r300->context.create_blend_state = r300_create_blend_state;
733    r300->context.bind_blend_state = r300_bind_blend_state;
734    r300->context.delete_blend_state = r300_delete_blend_state;
735
736    r300->context.set_blend_color = r300_set_blend_color;
737
738    r300->context.set_clip_state = r300_set_clip_state;
739
740    r300->context.set_constant_buffer = r300_set_constant_buffer;
741
742    r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state;
743    r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state;
744    r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state;
745
746    r300->context.set_edgeflags = r300_set_edgeflags;
747
748    r300->context.set_framebuffer_state = r300_set_framebuffer_state;
749
750    r300->context.create_fs_state = r300_create_fs_state;
751    r300->context.bind_fs_state = r300_bind_fs_state;
752    r300->context.delete_fs_state = r300_delete_fs_state;
753
754    r300->context.set_polygon_stipple = r300_set_polygon_stipple;
755
756    r300->context.create_rasterizer_state = r300_create_rs_state;
757    r300->context.bind_rasterizer_state = r300_bind_rs_state;
758    r300->context.delete_rasterizer_state = r300_delete_rs_state;
759
760    r300->context.create_sampler_state = r300_create_sampler_state;
761    r300->context.bind_sampler_states = r300_bind_sampler_states;
762    r300->context.delete_sampler_state = r300_delete_sampler_state;
763
764    r300->context.set_sampler_textures = r300_set_sampler_textures;
765
766    r300->context.set_scissor_state = r300_set_scissor_state;
767
768    r300->context.set_viewport_state = r300_set_viewport_state;
769
770    r300->context.set_vertex_buffers = r300_set_vertex_buffers;
771    r300->context.set_vertex_elements = r300_set_vertex_elements;
772
773    r300->context.create_vs_state = r300_create_vs_state;
774    r300->context.bind_vs_state = r300_bind_vs_state;
775    r300->context.delete_vs_state = r300_delete_vs_state;
776}
777