src/gallium/drivers/r300/r300_state.c

   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. */
  40 static 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. */
  81 static 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. */
  91 static 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. */
  99 static 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
 120 static 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
 129 static 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
 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);
 144
 145         r300->shader_constants[shader].user_count =
 146             buffer->buffer->size / (sizeof(float) * 4);
 147     } else {
 148         r300->shader_constants[shader].user_count = 0;
 149     }
 150
 151     r300->dirty_state |= R300_NEW_CONSTANTS;
 152 }
 153
 154 /* Create a new depth, stencil, and alpha state based on the CSO dsa state.
 155  *
 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. */
 159 static void*
 160         r300_create_dsa_state(struct pipe_context* pipe,
 161                               const struct pipe_depth_stencil_alpha_state* state)
 162 {
 163     struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
 164
 165     /* Depth test setup. */
 166     if (state->depth.enabled) {
 167         dsa->z_buffer_control |= R300_Z_ENABLE;
 168
 169         if (state->depth.writemask) {
 170             dsa->z_buffer_control |= R300_Z_WRITE_ENABLE;
 171         }
 172
 173         dsa->z_stencil_control |=
 174             (r300_translate_depth_stencil_function(state->depth.func) <<
 175                 R300_Z_FUNC_SHIFT);
 176     }
 177
 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);
 190
 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);
 194
 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);
 206
 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);
 210         }
 211     }
 212
 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,
 219                                      0, 1023);
 220     } else {
 221         dsa->z_buffer_top = R300_ZTOP_ENABLE;
 222     }
 223
 224     return (void*)dsa;
 225 }
 226
 227 /* Bind DSA state. */
 228 static void r300_bind_dsa_state(struct pipe_context* pipe,
 229                                 void* state)
 230 {
 231     struct r300_context* r300 = r300_context(pipe);
 232
 233     r300->dsa_state = (struct r300_dsa_state*)state;
 234     r300->dirty_state |= R300_NEW_DSA;
 235 }
 236
 237 /* Free DSA state. */
 238 static void r300_delete_dsa_state(struct pipe_context* pipe,
 239                                   void* state)
 240 {
 241     FREE(state);
 242 }
 243
 244 static void r300_set_edgeflags(struct pipe_context* pipe,
 245                                const unsigned* bitfield)
 246 {
 247     /* XXX you know it's bad when i915 has this blank too */
 248 }
 249
 250 static void
 251     r300_set_framebuffer_state(struct pipe_context* pipe,
 252                                const struct pipe_framebuffer_state* state)
 253 {
 254     struct r300_context* r300 = r300_context(pipe);
 255
 256     draw_flush(r300->draw);
 257
 258     r300->framebuffer_state = *state;
 259
 260     r300->dirty_state |= R300_NEW_FRAMEBUFFERS;
 261 }
 262
 263 /* Create fragment shader state. */
 264 static void* r300_create_fs_state(struct pipe_context* pipe,
 265                                   const struct pipe_shader_state* shader)
 266 {
 267     struct r300_context* r300 = r300_context(pipe);
 268     struct r3xx_fragment_shader* fs = NULL;
 269
 270     if (r300_screen(r300->context.screen)->caps->is_r500) {
 271         fs =
 272             (struct r3xx_fragment_shader*)CALLOC_STRUCT(r500_fragment_shader);
 273     } else {
 274         fs =
 275             (struct r3xx_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
 276     }
 277
 278     /* Copy state directly into shader. */
 279     fs->state = *shader;
 280
 281     tgsi_scan_shader(shader->tokens, &fs->info);
 282
 283     return (void*)fs;
 284 }
 285
 286 /* Bind fragment shader state. */
 287 static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
 288 {
 289     struct r300_context* r300 = r300_context(pipe);
 290     struct r3xx_fragment_shader* fs = (struct r3xx_fragment_shader*)shader;
 291
 292     if (fs == NULL) {
 293         r300->fs = NULL;
 294         return;
 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);
 298         } else {
 299             r300_translate_fragment_shader(r300, (struct r300_fragment_shader*)fs);
 300         }
 301     }
 302
 303     fs->translated = TRUE;
 304     r300->fs = fs;
 305
 306     r300->dirty_state |= R300_NEW_FRAGMENT_SHADER;
 307 }
 308
 309 /* Delete fragment shader state. */
 310 static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
 311 {
 312     FREE(shader);
 313 }
 314
 315 static void r300_set_polygon_stipple(struct pipe_context* pipe,
 316                                      const struct pipe_poly_stipple* state)
 317 {
 318     /* XXX */
 319 }
 320
 321 static INLINE int pack_float_16_6x(float f) {
 322     return ((int)(f * 6.0) & 0xffff);
 323 }
 324
 325 /* Create a new rasterizer state based on the CSO rasterizer state.
 326  *
 327  * This is a very large chunk of state, and covers most of the graphics
 328  * backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
 329  *
 330  * In a not entirely unironic sidenote, this state has nearly nothing to do
 331  * with the actual block on the Radeon called the rasterizer (RS). */
 332 static void* r300_create_rs_state(struct pipe_context* pipe,
 333                                   const struct pipe_rasterizer_state* state)
 334 {
 335     struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
 336
 337     /* XXX this is part of HW TCL */
 338     /* XXX endian control */
 339     rs->vap_control_status = R300_VAP_TCL_BYPASS;
 340
 341     rs->point_size = pack_float_16_6x(state->point_size) |
 342         (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
 343
 344     rs->line_control = pack_float_16_6x(state->line_width) |
 345         R300_GA_LINE_CNTL_END_TYPE_COMP;
 346
 347     /* Radeons don't think in "CW/CCW", they think in "front/back". */
 348     if (state->front_winding == PIPE_WINDING_CW) {
 349         rs->cull_mode = R300_FRONT_FACE_CW;
 350
 351         if (state->offset_cw) {
 352             rs->polygon_offset_enable |= R300_FRONT_ENABLE;
 353         }
 354         if (state->offset_ccw) {
 355             rs->polygon_offset_enable |= R300_BACK_ENABLE;
 356         }
 357     } else {
 358         rs->cull_mode = R300_FRONT_FACE_CCW;
 359
 360         if (state->offset_ccw) {
 361             rs->polygon_offset_enable |= R300_FRONT_ENABLE;
 362         }
 363         if (state->offset_cw) {
 364             rs->polygon_offset_enable |= R300_BACK_ENABLE;
 365         }
 366     }
 367     if (state->front_winding & state->cull_mode) {
 368         rs->cull_mode |= R300_CULL_FRONT;
 369     }
 370     if (~(state->front_winding) & state->cull_mode) {
 371         rs->cull_mode |= R300_CULL_BACK;
 372     }
 373
 374     if (rs->polygon_offset_enable) {
 375         rs->depth_offset_front = rs->depth_offset_back =
 376             fui(state->offset_units);
 377         rs->depth_scale_front = rs->depth_scale_back =
 378             fui(state->offset_scale);
 379     }
 380
 381     if (state->line_stipple_enable) {
 382         rs->line_stipple_config =
 383             R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
 384             (fui((float)state->line_stipple_factor) &
 385                 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
 386         /* XXX this might need to be scaled up */
 387         rs->line_stipple_value = state->line_stipple_pattern;
 388     }
 389
 390     rs->rs = *state;
 391
 392     return (void*)rs;
 393 }
 394
 395 /* Bind rasterizer state. */
 396 static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
 397 {
 398     struct r300_context* r300 = r300_context(pipe);
 399     struct r300_rs_state* rs = (struct r300_rs_state*)state;
 400
 401     draw_set_rasterizer_state(r300->draw, &rs->rs);
 402
 403     r300->rs_state = rs;
 404     r300->dirty_state |= R300_NEW_RASTERIZER;
 405 }
 406
 407 /* Free rasterizer state. */
 408 static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
 409 {
 410     FREE(state);
 411 }
 412
 413 static void*
 414         r300_create_sampler_state(struct pipe_context* pipe,
 415                                   const struct pipe_sampler_state* state)
 416 {
 417     struct r300_context* r300 = r300_context(pipe);
 418     struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
 419     int lod_bias;
 420
 421     sampler->filter0 |=
 422         (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) |
 423         (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) |
 424         (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT);
 425
 426     sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter,
 427                                                    state->mag_img_filter,
 428                                                    state->min_mip_filter);
 429
 430     lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1);
 431
 432     sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT;
 433
 434     sampler->filter1 |= r300_anisotropy(state->max_anisotropy);
 435
 436     util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM,
 437                     &sampler->border_color);
 438
 439     /* R500-specific fixups and optimizations */
 440     if (r300_screen(r300->context.screen)->caps->is_r500) {
 441         sampler->filter1 |= R500_BORDER_FIX;
 442     }
 443
 444     return (void*)sampler;
 445 }
 446
 447 static void r300_bind_sampler_states(struct pipe_context* pipe,
 448                                      unsigned count,
 449                                      void** states)
 450 {
 451     struct r300_context* r300 = r300_context(pipe);
 452     int i;
 453
 454     if (count > 8) {
 455         return;
 456     }
 457
 458     for (i = 0; i < count; i++) {
 459         if (r300->sampler_states[i] != states[i]) {
 460             r300->sampler_states[i] = (struct r300_sampler_state*)states[i];
 461             r300->dirty_state |= (R300_NEW_SAMPLER << i);
 462         }
 463     }
 464
 465     r300->sampler_count = count;
 466 }
 467
 468 static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
 469 {
 470     FREE(state);
 471 }
 472
 473 static void r300_set_sampler_textures(struct pipe_context* pipe,
 474                                       unsigned count,
 475                                       struct pipe_texture** texture)
 476 {
 477     struct r300_context* r300 = r300_context(pipe);
 478     int i;
 479
 480     /* XXX magic num */
 481     if (count > 8) {
 482         return;
 483     }
 484
 485     for (i = 0; i < count; i++) {
 486         if (r300->textures[i] != (struct r300_texture*)texture[i]) {
 487             pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
 488                 texture[i]);
 489             r300->dirty_state |= (R300_NEW_TEXTURE << i);
 490         }
 491     }
 492
 493     for (i = count; i < 8; i++) {
 494         if (r300->textures[i]) {
 495             pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
 496                 NULL);
 497             r300->dirty_state |= (R300_NEW_TEXTURE << i);
 498         }
 499     }
 500
 501     r300->texture_count = count;
 502 }
 503
 504 static void r300_set_scissor_state(struct pipe_context* pipe,
 505                                    const struct pipe_scissor_state* state)
 506 {
 507     struct r300_context* r300 = r300_context(pipe);
 508     draw_flush(r300->draw);
 509
 510     r300->scissor_state->scissor_top_left =
 511         (state->minx << R300_SCISSORS_X_SHIFT) |
 512         (state->miny << R300_SCISSORS_Y_SHIFT);
 513     r300->scissor_state->scissor_bottom_right =
 514         (state->maxx << R300_SCISSORS_X_SHIFT) |
 515         (state->maxy << R300_SCISSORS_Y_SHIFT);
 516
 517     r300->dirty_state |= R300_NEW_SCISSOR;
 518 }
 519
 520 static void r300_set_viewport_state(struct pipe_context* pipe,
 521                                     const struct pipe_viewport_state* state)
 522 {
 523     struct r300_context* r300 = r300_context(pipe);
 524     /* XXX handing this off to Draw for now */
 525     draw_set_viewport_state(r300->draw, state);
 526 }
 527
 528 static void r300_set_vertex_buffers(struct pipe_context* pipe,
 529                                     unsigned count,
 530                                     const struct pipe_vertex_buffer* buffers)
 531 {
 532     struct r300_context* r300 = r300_context(pipe);
 533
 534     memcpy(r300->vertex_buffers, buffers,
 535         sizeof(struct pipe_vertex_buffer) * count);
 536
 537     r300->vertex_buffer_count = count;
 538
 539     draw_flush(r300->draw);
 540     draw_set_vertex_buffers(r300->draw, count, buffers);
 541 }
 542
 543 static void r300_set_vertex_elements(struct pipe_context* pipe,
 544                                     unsigned count,
 545                                     const struct pipe_vertex_element* elements)
 546 {
 547     struct r300_context* r300 = r300_context(pipe);
 548     /* XXX Draw */
 549     draw_flush(r300->draw);
 550     draw_set_vertex_elements(r300->draw, count, elements);
 551 }
 552
 553 static void* r300_create_vs_state(struct pipe_context* pipe,
 554                                   const struct pipe_shader_state* state)
 555 {
 556     struct r300_context* context = r300_context(pipe);
 557     /* XXX handing this off to Draw for now */
 558     return draw_create_vertex_shader(context->draw, state);
 559 }
 560
 561 static void r300_bind_vs_state(struct pipe_context* pipe, void* state) {
 562     struct r300_context* context = r300_context(pipe);
 563     /* XXX handing this off to Draw for now */
 564     draw_bind_vertex_shader(context->draw, (struct draw_vertex_shader*)state);
 565 }
 566
 567 static void r300_delete_vs_state(struct pipe_context* pipe, void* state)
 568 {
 569     struct r300_context* context = r300_context(pipe);
 570     /* XXX handing this off to Draw for now */
 571     draw_delete_vertex_shader(context->draw, (struct draw_vertex_shader*)state);
 572 }
 573
 574 void r300_init_state_functions(struct r300_context* r300)
 575 {
 576     r300->context.create_blend_state = r300_create_blend_state;
 577     r300->context.bind_blend_state = r300_bind_blend_state;
 578     r300->context.delete_blend_state = r300_delete_blend_state;
 579
 580     r300->context.set_blend_color = r300_set_blend_color;
 581
 582     r300->context.set_clip_state = r300_set_clip_state;
 583
 584     r300->context.set_constant_buffer = r300_set_constant_buffer;
 585
 586     r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state;
 587     r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state;
 588     r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state;
 589
 590     r300->context.set_edgeflags = r300_set_edgeflags;
 591
 592     r300->context.set_framebuffer_state = r300_set_framebuffer_state;
 593
 594     r300->context.create_fs_state = r300_create_fs_state;
 595     r300->context.bind_fs_state = r300_bind_fs_state;
 596     r300->context.delete_fs_state = r300_delete_fs_state;
 597
 598     r300->context.set_polygon_stipple = r300_set_polygon_stipple;
 599
 600     r300->context.create_rasterizer_state = r300_create_rs_state;
 601     r300->context.bind_rasterizer_state = r300_bind_rs_state;
 602     r300->context.delete_rasterizer_state = r300_delete_rs_state;
 603
 604     r300->context.create_sampler_state = r300_create_sampler_state;
 605     r300->context.bind_sampler_states = r300_bind_sampler_states;
 606     r300->context.delete_sampler_state = r300_delete_sampler_state;
 607
 608     r300->context.set_sampler_textures = r300_set_sampler_textures;
 609
 610     r300->context.set_scissor_state = r300_set_scissor_state;
 611
 612     r300->context.set_viewport_state = r300_set_viewport_state;
 613
 614     r300->context.set_vertex_buffers = r300_set_vertex_buffers;
 615     r300->context.set_vertex_elements = r300_set_vertex_elements;
 616
 617     r300->context.create_vs_state = r300_create_vs_state;
 618     r300->context.bind_vs_state = r300_bind_vs_state;
 619     r300->context.delete_vs_state = r300_delete_vs_state;
 620 }