r300_state.c revision 09653d65e9650c3c04b3e8160b8f2ad7198fc122
1/* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * Copyright 2009 Marek Olšák <maraeo@gmail.com> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * on the rights to use, copy, modify, merge, publish, distribute, sub 9 * license, and/or sell copies of the Software, and to permit persons to whom 10 * the Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 23 24#include "draw/draw_context.h" 25 26#include "util/u_math.h" 27#include "util/u_memory.h" 28#include "util/u_pack_color.h" 29 30#include "tgsi/tgsi_parse.h" 31 32#include "pipe/p_config.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#include "radeon_winsys.h" 42 43/* r300_state: Functions used to intialize state context by translating 44 * Gallium state objects into semi-native r300 state objects. */ 45 46#define UPDATE_STATE(cso, atom) \ 47 if (cso != atom.state) { \ 48 atom.state = cso; \ 49 atom.dirty = TRUE; \ 50 } 51 52static boolean blend_discard_if_src_alpha_0(unsigned srcRGB, unsigned srcA, 53 unsigned dstRGB, unsigned dstA) 54{ 55 /* If the blend equation is ADD or REVERSE_SUBTRACT, 56 * SRC_ALPHA == 0, and the following state is set, the colorbuffer 57 * will not be changed. 58 * Notice that the dst factors are the src factors inverted. */ 59 return (srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 60 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 61 srcRGB == PIPE_BLENDFACTOR_ZERO) && 62 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 63 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 64 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 65 srcA == PIPE_BLENDFACTOR_ZERO) && 66 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 67 dstRGB == PIPE_BLENDFACTOR_ONE) && 68 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 69 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 70 dstA == PIPE_BLENDFACTOR_ONE); 71} 72 73static boolean blend_discard_if_src_alpha_1(unsigned srcRGB, unsigned srcA, 74 unsigned dstRGB, unsigned dstA) 75{ 76 /* If the blend equation is ADD or REVERSE_SUBTRACT, 77 * SRC_ALPHA == 1, and the following state is set, the colorbuffer 78 * will not be changed. 79 * Notice that the dst factors are the src factors inverted. */ 80 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 81 srcRGB == PIPE_BLENDFACTOR_ZERO) && 82 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 83 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 84 srcA == PIPE_BLENDFACTOR_ZERO) && 85 (dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 86 dstRGB == PIPE_BLENDFACTOR_ONE) && 87 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 88 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 89 dstA == PIPE_BLENDFACTOR_ONE); 90} 91 92static boolean blend_discard_if_src_color_0(unsigned srcRGB, unsigned srcA, 93 unsigned dstRGB, unsigned dstA) 94{ 95 /* If the blend equation is ADD or REVERSE_SUBTRACT, 96 * SRC_COLOR == (0,0,0), and the following state is set, the colorbuffer 97 * will not be changed. 98 * Notice that the dst factors are the src factors inverted. */ 99 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 100 srcRGB == PIPE_BLENDFACTOR_ZERO) && 101 (srcA == PIPE_BLENDFACTOR_ZERO) && 102 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 103 dstRGB == PIPE_BLENDFACTOR_ONE) && 104 (dstA == PIPE_BLENDFACTOR_ONE); 105} 106 107static boolean blend_discard_if_src_color_1(unsigned srcRGB, unsigned srcA, 108 unsigned dstRGB, unsigned dstA) 109{ 110 /* If the blend equation is ADD or REVERSE_SUBTRACT, 111 * SRC_COLOR == (1,1,1), and the following state is set, the colorbuffer 112 * will not be changed. 113 * Notice that the dst factors are the src factors inverted. */ 114 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 115 srcRGB == PIPE_BLENDFACTOR_ZERO) && 116 (srcA == PIPE_BLENDFACTOR_ZERO) && 117 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 118 dstRGB == PIPE_BLENDFACTOR_ONE) && 119 (dstA == PIPE_BLENDFACTOR_ONE); 120} 121 122static boolean blend_discard_if_src_alpha_color_0(unsigned srcRGB, unsigned srcA, 123 unsigned dstRGB, unsigned dstA) 124{ 125 /* If the blend equation is ADD or REVERSE_SUBTRACT, 126 * SRC_ALPHA_COLOR == (0,0,0,0), and the following state is set, 127 * the colorbuffer will not be changed. 128 * Notice that the dst factors are the src factors inverted. */ 129 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 130 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 131 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 132 srcRGB == PIPE_BLENDFACTOR_ZERO) && 133 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 134 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 135 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 136 srcA == PIPE_BLENDFACTOR_ZERO) && 137 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 138 dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 139 dstRGB == PIPE_BLENDFACTOR_ONE) && 140 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 141 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 142 dstA == PIPE_BLENDFACTOR_ONE); 143} 144 145static boolean blend_discard_if_src_alpha_color_1(unsigned srcRGB, unsigned srcA, 146 unsigned dstRGB, unsigned dstA) 147{ 148 /* If the blend equation is ADD or REVERSE_SUBTRACT, 149 * SRC_ALPHA_COLOR == (1,1,1,1), and the following state is set, 150 * the colorbuffer will not be changed. 151 * Notice that the dst factors are the src factors inverted. */ 152 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 153 srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 154 srcRGB == PIPE_BLENDFACTOR_ZERO) && 155 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 156 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 157 srcA == PIPE_BLENDFACTOR_ZERO) && 158 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 159 dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 160 dstRGB == PIPE_BLENDFACTOR_ONE) && 161 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 162 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 163 dstA == PIPE_BLENDFACTOR_ONE); 164} 165 166static unsigned bgra_cmask(unsigned mask) 167{ 168 /* Gallium uses RGBA color ordering while R300 expects BGRA. */ 169 170 return ((mask & PIPE_MASK_R) << 2) | 171 ((mask & PIPE_MASK_B) >> 2) | 172 (mask & (PIPE_MASK_G | PIPE_MASK_A)); 173} 174 175/* Create a new blend state based on the CSO blend state. 176 * 177 * This encompasses alpha blending, logic/raster ops, and blend dithering. */ 178static void* r300_create_blend_state(struct pipe_context* pipe, 179 const struct pipe_blend_state* state) 180{ 181 struct r300_screen* r300screen = r300_screen(pipe->screen); 182 struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state); 183 184 if (state->rt[0].blend_enable) 185 { 186 unsigned eqRGB = state->rt[0].rgb_func; 187 unsigned srcRGB = state->rt[0].rgb_src_factor; 188 unsigned dstRGB = state->rt[0].rgb_dst_factor; 189 190 unsigned eqA = state->rt[0].alpha_func; 191 unsigned srcA = state->rt[0].alpha_src_factor; 192 unsigned dstA = state->rt[0].alpha_dst_factor; 193 194 /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha, 195 * this is just the crappy D3D naming */ 196 blend->blend_control = R300_ALPHA_BLEND_ENABLE | 197 r300_translate_blend_function(eqRGB) | 198 ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) | 199 ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT); 200 201 /* Optimization: some operations do not require the destination color. 202 * 203 * When SRC_ALPHA_SATURATE is used, colorbuffer reads must be enabled, 204 * otherwise blending gives incorrect results. It seems to be 205 * a hardware bug. */ 206 if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN || 207 eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX || 208 dstRGB != PIPE_BLENDFACTOR_ZERO || 209 dstA != PIPE_BLENDFACTOR_ZERO || 210 srcRGB == PIPE_BLENDFACTOR_DST_COLOR || 211 srcRGB == PIPE_BLENDFACTOR_DST_ALPHA || 212 srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR || 213 srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA || 214 srcA == PIPE_BLENDFACTOR_DST_COLOR || 215 srcA == PIPE_BLENDFACTOR_DST_ALPHA || 216 srcA == PIPE_BLENDFACTOR_INV_DST_COLOR || 217 srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA || 218 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) { 219 /* Enable reading from the colorbuffer. */ 220 blend->blend_control |= R300_READ_ENABLE; 221 222 if (r300_screen(r300_context(pipe)->context.screen)->caps->is_r500) { 223 /* Optimization: Depending on incoming pixels, we can 224 * conditionally disable the reading in hardware... */ 225 if (eqRGB != PIPE_BLEND_MIN && eqA != PIPE_BLEND_MIN && 226 eqRGB != PIPE_BLEND_MAX && eqA != PIPE_BLEND_MAX) { 227 /* Disable reading if SRC_ALPHA == 0. */ 228 if ((dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 229 dstRGB == PIPE_BLENDFACTOR_ZERO) && 230 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 231 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 232 dstA == PIPE_BLENDFACTOR_ZERO)) { 233 blend->blend_control |= R500_SRC_ALPHA_0_NO_READ; 234 } 235 236 /* Disable reading if SRC_ALPHA == 1. */ 237 if ((dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 238 dstRGB == PIPE_BLENDFACTOR_ZERO) && 239 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 240 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 241 dstA == PIPE_BLENDFACTOR_ZERO)) { 242 blend->blend_control |= R500_SRC_ALPHA_1_NO_READ; 243 } 244 } 245 } 246 } 247 248 /* Optimization: discard pixels which don't change the colorbuffer. 249 * 250 * The code below is non-trivial and some math is involved. 251 * 252 * Discarding pixels must be disabled when FP16 AA is enabled. 253 * This is a hardware bug. Also, this implementation wouldn't work 254 * with FP blending enabled and equation clamping disabled. 255 * 256 * Equations other than ADD are rarely used and therefore won't be 257 * optimized. */ 258 if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) && 259 (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) { 260 /* ADD: X+Y 261 * REVERSE_SUBTRACT: Y-X 262 * 263 * The idea is: 264 * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1, 265 * then CB will not be changed. 266 * 267 * Given the srcFactor and dstFactor variables, we can derive 268 * what src and dst should be equal to and discard appropriate 269 * pixels. 270 */ 271 if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) { 272 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0; 273 } else if (blend_discard_if_src_alpha_1(srcRGB, srcA, 274 dstRGB, dstA)) { 275 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1; 276 } else if (blend_discard_if_src_color_0(srcRGB, srcA, 277 dstRGB, dstA)) { 278 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0; 279 } else if (blend_discard_if_src_color_1(srcRGB, srcA, 280 dstRGB, dstA)) { 281 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1; 282 } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA, 283 dstRGB, dstA)) { 284 blend->blend_control |= 285 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0; 286 } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA, 287 dstRGB, dstA)) { 288 blend->blend_control |= 289 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1; 290 } 291 } 292 293 /* separate alpha */ 294 if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { 295 blend->blend_control |= R300_SEPARATE_ALPHA_ENABLE; 296 blend->alpha_blend_control = 297 r300_translate_blend_function(eqA) | 298 (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) | 299 (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT); 300 } 301 } 302 303 /* PIPE_LOGICOP_* don't need to be translated, fortunately. */ 304 if (state->logicop_enable) { 305 blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE | 306 (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT; 307 } 308 309 /* Color channel masks for all MRTs. */ 310 blend->color_channel_mask = bgra_cmask(state->rt[0].colormask); 311 if (r300screen->caps->is_r500 && state->independent_blend_enable) { 312 if (state->rt[1].blend_enable) { 313 blend->color_channel_mask |= bgra_cmask(state->rt[1].colormask) << 4; 314 } 315 if (state->rt[2].blend_enable) { 316 blend->color_channel_mask |= bgra_cmask(state->rt[2].colormask) << 8; 317 } 318 if (state->rt[3].blend_enable) { 319 blend->color_channel_mask |= bgra_cmask(state->rt[3].colormask) << 12; 320 } 321 } 322 323 if (state->dither) { 324 blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT | 325 R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; 326 } 327 328 return (void*)blend; 329} 330 331/* Bind blend state. */ 332static void r300_bind_blend_state(struct pipe_context* pipe, 333 void* state) 334{ 335 struct r300_context* r300 = r300_context(pipe); 336 337 UPDATE_STATE(state, r300->blend_state); 338} 339 340/* Free blend state. */ 341static void r300_delete_blend_state(struct pipe_context* pipe, 342 void* state) 343{ 344 FREE(state); 345} 346 347/* Convert float to 10bit integer */ 348static unsigned float_to_fixed10(float f) 349{ 350 return CLAMP((unsigned)(f * 1023.9f), 0, 1023); 351} 352 353/* Set blend color. 354 * Setup both R300 and R500 registers, figure out later which one to write. */ 355static void r300_set_blend_color(struct pipe_context* pipe, 356 const struct pipe_blend_color* color) 357{ 358 struct r300_context* r300 = r300_context(pipe); 359 struct r300_screen* r300screen = r300_screen(pipe->screen); 360 struct r300_blend_color_state* state = 361 (struct r300_blend_color_state*)r300->blend_color_state.state; 362 union util_color uc; 363 364 util_pack_color(color->color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); 365 state->blend_color = uc.ui; 366 367 /* XXX if FP16 blending is enabled, we should use the FP16 format */ 368 state->blend_color_red_alpha = 369 float_to_fixed10(color->color[0]) | 370 (float_to_fixed10(color->color[3]) << 16); 371 state->blend_color_green_blue = 372 float_to_fixed10(color->color[2]) | 373 (float_to_fixed10(color->color[1]) << 16); 374 375 r300->blend_color_state.size = r300screen->caps->is_r500 ? 3 : 2; 376 r300->blend_color_state.dirty = TRUE; 377} 378 379static void r300_set_clip_state(struct pipe_context* pipe, 380 const struct pipe_clip_state* state) 381{ 382 struct r300_context* r300 = r300_context(pipe); 383 384 r300->clip = *state; 385 386 if (r300_screen(pipe->screen)->caps->has_tcl) { 387 memcpy(r300->clip_state.state, state, sizeof(struct pipe_clip_state)); 388 r300->clip_state.size = 29; 389 } else { 390 draw_flush(r300->draw); 391 draw_set_clip_state(r300->draw, state); 392 r300->clip_state.size = 2; 393 } 394 395 r300->clip_state.dirty = TRUE; 396} 397 398/* Create a new depth, stencil, and alpha state based on the CSO dsa state. 399 * 400 * This contains the depth buffer, stencil buffer, alpha test, and such. 401 * On the Radeon, depth and stencil buffer setup are intertwined, which is 402 * the reason for some of the strange-looking assignments across registers. */ 403static void* 404 r300_create_dsa_state(struct pipe_context* pipe, 405 const struct pipe_depth_stencil_alpha_state* state) 406{ 407 struct r300_capabilities *caps = 408 r300_screen(r300_context(pipe)->context.screen)->caps; 409 struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); 410 411 /* Depth test setup. */ 412 if (state->depth.enabled) { 413 dsa->z_buffer_control |= R300_Z_ENABLE; 414 415 if (state->depth.writemask) { 416 dsa->z_buffer_control |= R300_Z_WRITE_ENABLE; 417 } 418 419 dsa->z_stencil_control |= 420 (r300_translate_depth_stencil_function(state->depth.func) << 421 R300_Z_FUNC_SHIFT); 422 } 423 424 /* Stencil buffer setup. */ 425 if (state->stencil[0].enabled) { 426 dsa->z_buffer_control |= R300_STENCIL_ENABLE; 427 dsa->z_stencil_control |= 428 (r300_translate_depth_stencil_function(state->stencil[0].func) << 429 R300_S_FRONT_FUNC_SHIFT) | 430 (r300_translate_stencil_op(state->stencil[0].fail_op) << 431 R300_S_FRONT_SFAIL_OP_SHIFT) | 432 (r300_translate_stencil_op(state->stencil[0].zpass_op) << 433 R300_S_FRONT_ZPASS_OP_SHIFT) | 434 (r300_translate_stencil_op(state->stencil[0].zfail_op) << 435 R300_S_FRONT_ZFAIL_OP_SHIFT); 436 437 dsa->stencil_ref_mask = 438 (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) | 439 (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT); 440 441 if (state->stencil[1].enabled) { 442 dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK; 443 dsa->z_stencil_control |= 444 (r300_translate_depth_stencil_function(state->stencil[1].func) << 445 R300_S_BACK_FUNC_SHIFT) | 446 (r300_translate_stencil_op(state->stencil[1].fail_op) << 447 R300_S_BACK_SFAIL_OP_SHIFT) | 448 (r300_translate_stencil_op(state->stencil[1].zpass_op) << 449 R300_S_BACK_ZPASS_OP_SHIFT) | 450 (r300_translate_stencil_op(state->stencil[1].zfail_op) << 451 R300_S_BACK_ZFAIL_OP_SHIFT); 452 453 if (caps->is_r500) 454 { 455 dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; 456 dsa->stencil_ref_bf = 457 (state->stencil[1].valuemask << 458 R300_STENCILMASK_SHIFT) | 459 (state->stencil[1].writemask << 460 R300_STENCILWRITEMASK_SHIFT); 461 } 462 } 463 } 464 465 /* Alpha test setup. */ 466 if (state->alpha.enabled) { 467 dsa->alpha_function = 468 r300_translate_alpha_function(state->alpha.func) | 469 R300_FG_ALPHA_FUNC_ENABLE; 470 471 /* We could use 10bit alpha ref but who needs that? */ 472 dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); 473 474 if (caps->is_r500) 475 dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; 476 } 477 478 return (void*)dsa; 479} 480 481/* Bind DSA state. */ 482static void r300_bind_dsa_state(struct pipe_context* pipe, 483 void* state) 484{ 485 struct r300_context* r300 = r300_context(pipe); 486 487 UPDATE_STATE(state, r300->dsa_state); 488} 489 490/* Free DSA state. */ 491static void r300_delete_dsa_state(struct pipe_context* pipe, 492 void* state) 493{ 494 FREE(state); 495} 496 497static void r300_set_stencil_ref(struct pipe_context* pipe, 498 const struct pipe_stencil_ref* sr) 499{ 500 struct r300_context* r300 = r300_context(pipe); 501 r300->stencil_ref = *sr; 502 r300->dsa_state.dirty = TRUE; 503} 504 505/* This switcheroo is needed just because of goddamned MACRO_SWITCH. */ 506static void r300_fb_update_tiling_flags(struct r300_context *r300, 507 const struct pipe_framebuffer_state *old_state, 508 const struct pipe_framebuffer_state *new_state) 509{ 510 struct r300_texture *tex; 511 unsigned i, j, level; 512 513 /* Reset tiling flags for old surfaces to default values. */ 514 for (i = 0; i < old_state->nr_cbufs; i++) { 515 for (j = 0; j < new_state->nr_cbufs; j++) { 516 if (old_state->cbufs[i]->texture == new_state->cbufs[j]->texture) { 517 break; 518 } 519 } 520 /* If not binding the surface again... */ 521 if (j != new_state->nr_cbufs) { 522 continue; 523 } 524 525 tex = (struct r300_texture*)old_state->cbufs[i]->texture; 526 527 if (tex) { 528 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 529 tex->pitch[0], 530 tex->microtile != 0, 531 tex->macrotile != 0); 532 } 533 } 534 if (old_state->zsbuf && 535 (!new_state->zsbuf || 536 old_state->zsbuf->texture != new_state->zsbuf->texture)) { 537 tex = (struct r300_texture*)old_state->zsbuf->texture; 538 539 if (tex) { 540 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 541 tex->pitch[0], 542 tex->microtile != 0, 543 tex->macrotile != 0); 544 } 545 } 546 547 /* Set tiling flags for new surfaces. */ 548 for (i = 0; i < new_state->nr_cbufs; i++) { 549 tex = (struct r300_texture*)new_state->cbufs[i]->texture; 550 level = new_state->cbufs[i]->level; 551 552 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 553 tex->pitch[level], 554 tex->microtile != 0, 555 tex->mip_macrotile[level] != 0); 556 } 557 if (new_state->zsbuf) { 558 tex = (struct r300_texture*)new_state->zsbuf->texture; 559 level = new_state->zsbuf->level; 560 561 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 562 tex->pitch[level], 563 tex->microtile != 0, 564 tex->mip_macrotile[level] != 0); 565 } 566} 567 568static void 569 r300_set_framebuffer_state(struct pipe_context* pipe, 570 const struct pipe_framebuffer_state* state) 571{ 572 struct r300_context* r300 = r300_context(pipe); 573 struct r300_screen* r300screen = r300_screen(pipe->screen); 574 unsigned max_width, max_height; 575 uint32_t zbuffer_bpp = 0; 576 577 578 if (state->nr_cbufs > 4) { 579 debug_printf("r300: Implementation error: Too many MRTs in %s, " 580 "refusing to bind framebuffer state!\n", __FUNCTION__); 581 return; 582 } 583 584 if (r300screen->caps->is_r500) { 585 max_width = max_height = 4096; 586 } else if (r300screen->caps->is_r400) { 587 max_width = max_height = 4021; 588 } else { 589 max_width = max_height = 2560; 590 } 591 592 if (state->width > max_width || state->height > max_height) { 593 debug_printf("r300: Implementation error: Render targets are too " 594 "big in %s, refusing to bind framebuffer state!\n", __FUNCTION__); 595 return; 596 } 597 598 599 if (r300->draw) { 600 draw_flush(r300->draw); 601 } 602 603 memcpy(r300->fb_state.state, state, sizeof(struct pipe_framebuffer_state)); 604 605 r300->fb_state.size = (10 * state->nr_cbufs) + (2 * (4 - state->nr_cbufs)) + 606 (state->zsbuf ? 10 : 0) + 8; 607 608 r300_fb_update_tiling_flags(r300, r300->fb_state.state, state); 609 610 /* XXX wait what */ 611 r300->blend_state.dirty = TRUE; 612 r300->dsa_state.dirty = TRUE; 613 r300->fb_state.dirty = TRUE; 614 r300->scissor_state.dirty = TRUE; 615 616 /* Polygon offset depends on the zbuffer bit depth. */ 617 if (state->zsbuf && r300->polygon_offset_enabled) { 618 switch (util_format_get_blocksize(state->zsbuf->texture->format)) { 619 case 2: 620 zbuffer_bpp = 16; 621 break; 622 case 4: 623 zbuffer_bpp = 24; 624 break; 625 } 626 627 if (r300->zbuffer_bpp != zbuffer_bpp) { 628 r300->zbuffer_bpp = zbuffer_bpp; 629 r300->rs_state.dirty = TRUE; 630 } 631 } 632} 633 634/* Create fragment shader state. */ 635static void* r300_create_fs_state(struct pipe_context* pipe, 636 const struct pipe_shader_state* shader) 637{ 638 struct r300_fragment_shader* fs = NULL; 639 640 fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader); 641 642 /* Copy state directly into shader. */ 643 fs->state = *shader; 644 fs->state.tokens = tgsi_dup_tokens(shader->tokens); 645 646 tgsi_scan_shader(shader->tokens, &fs->info); 647 r300_shader_read_fs_inputs(&fs->info, &fs->inputs); 648 649 return (void*)fs; 650} 651 652/* Bind fragment shader state. */ 653static void r300_bind_fs_state(struct pipe_context* pipe, void* shader) 654{ 655 struct r300_context* r300 = r300_context(pipe); 656 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 657 658 if (fs == NULL) { 659 r300->fs = NULL; 660 return; 661 } 662 663 r300->fs = fs; 664 r300_pick_fragment_shader(r300); 665 666 r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ 667 668 if (r300->vs_state.state && r300_vertex_shader_setup_wpos(r300)) { 669 r300->vap_output_state.dirty = TRUE; 670 } 671 672 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | R300_NEW_FRAGMENT_SHADER_CONSTANTS; 673} 674 675/* Delete fragment shader state. */ 676static void r300_delete_fs_state(struct pipe_context* pipe, void* shader) 677{ 678 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 679 struct r300_fragment_shader_code *tmp, *ptr = fs->first; 680 681 while (ptr) { 682 tmp = ptr; 683 ptr = ptr->next; 684 rc_constants_destroy(&tmp->code.constants); 685 FREE(tmp); 686 } 687 FREE((void*)fs->state.tokens); 688 FREE(shader); 689} 690 691static void r300_set_polygon_stipple(struct pipe_context* pipe, 692 const struct pipe_poly_stipple* state) 693{ 694 /* XXX no idea how to set this up, but not terribly important */ 695} 696 697/* Create a new rasterizer state based on the CSO rasterizer state. 698 * 699 * This is a very large chunk of state, and covers most of the graphics 700 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks. 701 * 702 * In a not entirely unironic sidenote, this state has nearly nothing to do 703 * with the actual block on the Radeon called the rasterizer (RS). */ 704static void* r300_create_rs_state(struct pipe_context* pipe, 705 const struct pipe_rasterizer_state* state) 706{ 707 struct r300_screen* r300screen = r300_screen(pipe->screen); 708 struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state); 709 710 /* Copy rasterizer state for Draw. */ 711 rs->rs = *state; 712 713#ifdef PIPE_ARCH_LITTLE_ENDIAN 714 rs->vap_control_status = R300_VC_NO_SWAP; 715#else 716 rs->vap_control_status = R300_VC_32BIT_SWAP; 717#endif 718 719 /* If no TCL engine is present, turn off the HW TCL. */ 720 if (!r300screen->caps->has_tcl) { 721 rs->vap_control_status |= R300_VAP_TCL_BYPASS; 722 } 723 724 rs->point_size = pack_float_16_6x(state->point_size) | 725 (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT); 726 727 rs->line_control = pack_float_16_6x(state->line_width) | 728 R300_GA_LINE_CNTL_END_TYPE_COMP; 729 730 /* Enable polygon mode */ 731 if (state->fill_cw != PIPE_POLYGON_MODE_FILL || 732 state->fill_ccw != PIPE_POLYGON_MODE_FILL) { 733 rs->polygon_mode = R300_GA_POLY_MODE_DUAL; 734 } 735 736 /* Radeons don't think in "CW/CCW", they think in "front/back". */ 737 if (state->front_winding == PIPE_WINDING_CW) { 738 rs->cull_mode = R300_FRONT_FACE_CW; 739 740 /* Polygon offset */ 741 if (state->offset_cw) { 742 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 743 } 744 if (state->offset_ccw) { 745 rs->polygon_offset_enable |= R300_BACK_ENABLE; 746 } 747 748 /* Polygon mode */ 749 if (rs->polygon_mode) { 750 rs->polygon_mode |= 751 r300_translate_polygon_mode_front(state->fill_cw); 752 rs->polygon_mode |= 753 r300_translate_polygon_mode_back(state->fill_ccw); 754 } 755 } else { 756 rs->cull_mode = R300_FRONT_FACE_CCW; 757 758 /* Polygon offset */ 759 if (state->offset_ccw) { 760 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 761 } 762 if (state->offset_cw) { 763 rs->polygon_offset_enable |= R300_BACK_ENABLE; 764 } 765 766 /* Polygon mode */ 767 if (rs->polygon_mode) { 768 rs->polygon_mode |= 769 r300_translate_polygon_mode_front(state->fill_ccw); 770 rs->polygon_mode |= 771 r300_translate_polygon_mode_back(state->fill_cw); 772 } 773 } 774 if (state->front_winding & state->cull_mode) { 775 rs->cull_mode |= R300_CULL_FRONT; 776 } 777 if (~(state->front_winding) & state->cull_mode) { 778 rs->cull_mode |= R300_CULL_BACK; 779 } 780 781 if (rs->polygon_offset_enable) { 782 rs->depth_offset = state->offset_units; 783 rs->depth_scale = state->offset_scale; 784 } 785 786 if (state->line_stipple_enable) { 787 rs->line_stipple_config = 788 R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE | 789 (fui((float)state->line_stipple_factor) & 790 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK); 791 /* XXX this might need to be scaled up */ 792 rs->line_stipple_value = state->line_stipple_pattern; 793 } 794 795 if (state->flatshade) { 796 rs->color_control = R300_SHADE_MODEL_FLAT; 797 } else { 798 rs->color_control = R300_SHADE_MODEL_SMOOTH; 799 } 800 801 return (void*)rs; 802} 803 804/* Bind rasterizer state. */ 805static void r300_bind_rs_state(struct pipe_context* pipe, void* state) 806{ 807 struct r300_context* r300 = r300_context(pipe); 808 struct r300_rs_state* rs = (struct r300_rs_state*)state; 809 810 if (r300->draw) { 811 draw_flush(r300->draw); 812 draw_set_rasterizer_state(r300->draw, &rs->rs); 813 } 814 815 if (rs) { 816 r300->polygon_offset_enabled = rs->rs.offset_cw || rs->rs.offset_ccw; 817 } else { 818 r300->polygon_offset_enabled = FALSE; 819 } 820 821 UPDATE_STATE(state, r300->rs_state); 822 r300->rs_state.size = 17 + (r300->polygon_offset_enabled ? 5 : 0); 823 824 /* XXX Why is this still needed, dammit!? */ 825 r300->scissor_state.dirty = TRUE; 826 r300->viewport_state.dirty = TRUE; 827 828 /* XXX Clean these up when we move to atom emits */ 829 if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { 830 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 831 } 832} 833 834/* Free rasterizer state. */ 835static void r300_delete_rs_state(struct pipe_context* pipe, void* state) 836{ 837 FREE(state); 838} 839 840static void* 841 r300_create_sampler_state(struct pipe_context* pipe, 842 const struct pipe_sampler_state* state) 843{ 844 struct r300_context* r300 = r300_context(pipe); 845 struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state); 846 int lod_bias; 847 union util_color uc; 848 849 sampler->state = *state; 850 851 sampler->filter0 |= 852 (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) | 853 (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) | 854 (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT); 855 856 sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter, 857 state->mag_img_filter, 858 state->min_mip_filter, 859 state->max_anisotropy > 0); 860 861 /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */ 862 /* We must pass these to the merge function to clamp them properly. */ 863 sampler->min_lod = MAX2((unsigned)state->min_lod, 0); 864 sampler->max_lod = MAX2((unsigned)ceilf(state->max_lod), 0); 865 866 lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1); 867 868 sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT; 869 870 sampler->filter1 |= r300_anisotropy(state->max_anisotropy); 871 872 util_pack_color(state->border_color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); 873 sampler->border_color = uc.ui; 874 875 /* R500-specific fixups and optimizations */ 876 if (r300_screen(r300->context.screen)->caps->is_r500) { 877 sampler->filter1 |= R500_BORDER_FIX; 878 } 879 880 return (void*)sampler; 881} 882 883static void r300_bind_sampler_states(struct pipe_context* pipe, 884 unsigned count, 885 void** states) 886{ 887 struct r300_context* r300 = r300_context(pipe); 888 struct r300_textures_state* state = 889 (struct r300_textures_state*)r300->textures_state.state; 890 891 if (count > 8) { 892 return; 893 } 894 895 memcpy(state->sampler_states, states, sizeof(void*) * count); 896 state->sampler_count = count; 897 898 r300->textures_state.dirty = TRUE; 899 900 /* Pick a fragment shader based on the texture compare state. */ 901 if (r300->fs && count) { 902 if (r300_pick_fragment_shader(r300)) { 903 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | 904 R300_NEW_FRAGMENT_SHADER_CONSTANTS; 905 } 906 } 907} 908 909static void r300_lacks_vertex_textures(struct pipe_context* pipe, 910 unsigned count, 911 void** states) 912{ 913} 914 915static void r300_delete_sampler_state(struct pipe_context* pipe, void* state) 916{ 917 FREE(state); 918} 919 920static void r300_set_sampler_textures(struct pipe_context* pipe, 921 unsigned count, 922 struct pipe_texture** texture) 923{ 924 struct r300_context* r300 = r300_context(pipe); 925 struct r300_textures_state* state = 926 (struct r300_textures_state*)r300->textures_state.state; 927 unsigned i; 928 boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500; 929 boolean dirty_tex = FALSE; 930 931 /* XXX magic num */ 932 if (count > 8) { 933 return; 934 } 935 936 for (i = 0; i < count; i++) { 937 if (state->textures[i] != (struct r300_texture*)texture[i]) { 938 pipe_texture_reference((struct pipe_texture**)&state->textures[i], 939 texture[i]); 940 dirty_tex = TRUE; 941 942 /* R300-specific - set the texrect factor in the fragment shader */ 943 if (!is_r500 && state->textures[i]->is_npot) { 944 /* XXX It would be nice to re-emit just 1 constant, 945 * XXX not all of them */ 946 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 947 } 948 } 949 } 950 951 for (i = count; i < 8; i++) { 952 if (state->textures[i]) { 953 pipe_texture_reference((struct pipe_texture**)&state->textures[i], 954 NULL); 955 } 956 } 957 958 state->texture_count = count; 959 960 r300->textures_state.dirty = TRUE; 961 962 if (dirty_tex) { 963 r300->texture_cache_inval.dirty = TRUE; 964 } 965} 966 967static void r300_set_scissor_state(struct pipe_context* pipe, 968 const struct pipe_scissor_state* state) 969{ 970 struct r300_context* r300 = r300_context(pipe); 971 972 memcpy(r300->scissor_state.state, state, 973 sizeof(struct pipe_scissor_state)); 974 975 r300->scissor_state.dirty = TRUE; 976} 977 978static void r300_set_viewport_state(struct pipe_context* pipe, 979 const struct pipe_viewport_state* state) 980{ 981 struct r300_context* r300 = r300_context(pipe); 982 struct r300_viewport_state* viewport = 983 (struct r300_viewport_state*)r300->viewport_state.state; 984 985 r300->viewport = *state; 986 987 /* Do the transform in HW. */ 988 viewport->vte_control = R300_VTX_W0_FMT; 989 990 if (state->scale[0] != 1.0f) { 991 viewport->xscale = state->scale[0]; 992 viewport->vte_control |= R300_VPORT_X_SCALE_ENA; 993 } 994 if (state->scale[1] != 1.0f) { 995 viewport->yscale = state->scale[1]; 996 viewport->vte_control |= R300_VPORT_Y_SCALE_ENA; 997 } 998 if (state->scale[2] != 1.0f) { 999 viewport->zscale = state->scale[2]; 1000 viewport->vte_control |= R300_VPORT_Z_SCALE_ENA; 1001 } 1002 if (state->translate[0] != 0.0f) { 1003 viewport->xoffset = state->translate[0]; 1004 viewport->vte_control |= R300_VPORT_X_OFFSET_ENA; 1005 } 1006 if (state->translate[1] != 0.0f) { 1007 viewport->yoffset = state->translate[1]; 1008 viewport->vte_control |= R300_VPORT_Y_OFFSET_ENA; 1009 } 1010 if (state->translate[2] != 0.0f) { 1011 viewport->zoffset = state->translate[2]; 1012 viewport->vte_control |= R300_VPORT_Z_OFFSET_ENA; 1013 } 1014 1015 r300->viewport_state.dirty = TRUE; 1016 if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { 1017 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 1018 } 1019} 1020 1021static void r300_set_vertex_buffers(struct pipe_context* pipe, 1022 unsigned count, 1023 const struct pipe_vertex_buffer* buffers) 1024{ 1025 struct r300_context* r300 = r300_context(pipe); 1026 unsigned i, max_index = ~0; 1027 1028 memcpy(r300->vertex_buffer, buffers, 1029 sizeof(struct pipe_vertex_buffer) * count); 1030 1031 for (i = 0; i < count; i++) { 1032 max_index = MIN2(buffers[i].max_index, max_index); 1033 } 1034 1035 r300->vertex_buffer_count = count; 1036 r300->vertex_buffer_max_index = max_index; 1037 1038 if (r300->draw) { 1039 draw_flush(r300->draw); 1040 draw_set_vertex_buffers(r300->draw, count, buffers); 1041 } else { 1042 r300->vertex_stream_state.dirty = TRUE; 1043 } 1044} 1045 1046static boolean r300_validate_aos(struct r300_context *r300) 1047{ 1048 struct pipe_vertex_buffer *vbuf = r300->vertex_buffer; 1049 struct pipe_vertex_element *velem = r300->vertex_element; 1050 int i; 1051 1052 /* Check if formats and strides are aligned to the size of DWORD. */ 1053 for (i = 0; i < r300->vertex_element_count; i++) { 1054 if (vbuf[velem[i].vertex_buffer_index].stride % 4 != 0 || 1055 util_format_get_blocksize(velem[i].src_format) % 4 != 0) { 1056 return FALSE; 1057 } 1058 } 1059 return TRUE; 1060} 1061 1062static void r300_set_vertex_elements(struct pipe_context* pipe, 1063 unsigned count, 1064 const struct pipe_vertex_element* elements) 1065{ 1066 struct r300_context* r300 = r300_context(pipe); 1067 1068 memcpy(r300->vertex_element, 1069 elements, 1070 sizeof(struct pipe_vertex_element) * count); 1071 r300->vertex_element_count = count; 1072 1073 if (r300->draw) { 1074 draw_flush(r300->draw); 1075 draw_set_vertex_elements(r300->draw, count, elements); 1076 } 1077 1078 if (!r300_validate_aos(r300)) { 1079 /* XXX We should fallback using draw. */ 1080 assert(0); 1081 abort(); 1082 } 1083} 1084 1085static void* r300_create_vs_state(struct pipe_context* pipe, 1086 const struct pipe_shader_state* shader) 1087{ 1088 struct r300_context* r300 = r300_context(pipe); 1089 1090 if (r300_screen(pipe->screen)->caps->has_tcl) { 1091 struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader); 1092 /* Copy state directly into shader. */ 1093 vs->state = *shader; 1094 vs->state.tokens = tgsi_dup_tokens(shader->tokens); 1095 1096 tgsi_scan_shader(shader->tokens, &vs->info); 1097 1098 return (void*)vs; 1099 } else { 1100 return draw_create_vertex_shader(r300->draw, shader); 1101 } 1102} 1103 1104static void r300_bind_vs_state(struct pipe_context* pipe, void* shader) 1105{ 1106 struct r300_context* r300 = r300_context(pipe); 1107 1108 if (r300_screen(pipe->screen)->caps->has_tcl) { 1109 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 1110 1111 if (vs == NULL) { 1112 r300->vs_state.state = NULL; 1113 return; 1114 } else if (!vs->translated) { 1115 r300_translate_vertex_shader(r300, vs); 1116 } 1117 1118 UPDATE_STATE(shader, r300->vs_state); 1119 r300->vs_state.size = vs->code.length + 9; 1120 1121 r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ 1122 r300->vap_output_state.dirty = TRUE; 1123 r300->pvs_flush.dirty = TRUE; 1124 1125 if (r300->fs) { 1126 r300_vertex_shader_setup_wpos(r300); 1127 } 1128 1129 r300->dirty_state |= R300_NEW_VERTEX_SHADER_CONSTANTS; 1130 } else { 1131 draw_flush(r300->draw); 1132 draw_bind_vertex_shader(r300->draw, 1133 (struct draw_vertex_shader*)shader); 1134 } 1135} 1136 1137static void r300_delete_vs_state(struct pipe_context* pipe, void* shader) 1138{ 1139 struct r300_context* r300 = r300_context(pipe); 1140 1141 if (r300_screen(pipe->screen)->caps->has_tcl) { 1142 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 1143 1144 rc_constants_destroy(&vs->code.constants); 1145 FREE((void*)vs->state.tokens); 1146 FREE(shader); 1147 } else { 1148 draw_delete_vertex_shader(r300->draw, 1149 (struct draw_vertex_shader*)shader); 1150 } 1151} 1152 1153static void r300_set_constant_buffer(struct pipe_context *pipe, 1154 uint shader, uint index, 1155 struct pipe_buffer *buf) 1156{ 1157 struct r300_context* r300 = r300_context(pipe); 1158 struct r300_screen *r300screen = r300_screen(pipe->screen); 1159 void *mapped; 1160 int max_size = 0; 1161 1162 if (buf == NULL || buf->size == 0 || 1163 (mapped = pipe_buffer_map(pipe->screen, buf, PIPE_BUFFER_USAGE_CPU_READ)) == NULL) 1164 { 1165 r300->shader_constants[shader].count = 0; 1166 return; 1167 } 1168 1169 assert((buf->size % 4 * sizeof(float)) == 0); 1170 1171 /* Check the size of the constant buffer. */ 1172 switch (shader) { 1173 case PIPE_SHADER_VERTEX: 1174 max_size = 256; 1175 break; 1176 case PIPE_SHADER_FRAGMENT: 1177 if (r300screen->caps->is_r500) { 1178 max_size = 256; 1179 /* XXX Implement emission of r400's extended constant buffer. */ 1180 /*} else if (r300screen->caps->is_r400) { 1181 max_size = 64;*/ 1182 } else { 1183 max_size = 32; 1184 } 1185 break; 1186 default: 1187 assert(0); 1188 } 1189 1190 /* XXX Subtract immediates and RC_STATE_* variables. */ 1191 if (buf->size > (sizeof(float) * 4 * max_size)) { 1192 debug_printf("r300: Max size of the constant buffer is " 1193 "%i*4 floats.\n", max_size); 1194 abort(); 1195 } 1196 1197 memcpy(r300->shader_constants[shader].constants, mapped, buf->size); 1198 r300->shader_constants[shader].count = buf->size / (4 * sizeof(float)); 1199 pipe_buffer_unmap(pipe->screen, buf); 1200 1201 if (shader == PIPE_SHADER_VERTEX) { 1202 r300->dirty_state |= R300_NEW_VERTEX_SHADER_CONSTANTS; 1203 r300->pvs_flush.dirty = TRUE; 1204 } 1205 else if (shader == PIPE_SHADER_FRAGMENT) 1206 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 1207} 1208 1209void r300_init_state_functions(struct r300_context* r300) 1210{ 1211 r300->context.create_blend_state = r300_create_blend_state; 1212 r300->context.bind_blend_state = r300_bind_blend_state; 1213 r300->context.delete_blend_state = r300_delete_blend_state; 1214 1215 r300->context.set_blend_color = r300_set_blend_color; 1216 1217 r300->context.set_clip_state = r300_set_clip_state; 1218 1219 r300->context.set_constant_buffer = r300_set_constant_buffer; 1220 1221 r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state; 1222 r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state; 1223 r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state; 1224 1225 r300->context.set_stencil_ref = r300_set_stencil_ref; 1226 1227 r300->context.set_framebuffer_state = r300_set_framebuffer_state; 1228 1229 r300->context.create_fs_state = r300_create_fs_state; 1230 r300->context.bind_fs_state = r300_bind_fs_state; 1231 r300->context.delete_fs_state = r300_delete_fs_state; 1232 1233 r300->context.set_polygon_stipple = r300_set_polygon_stipple; 1234 1235 r300->context.create_rasterizer_state = r300_create_rs_state; 1236 r300->context.bind_rasterizer_state = r300_bind_rs_state; 1237 r300->context.delete_rasterizer_state = r300_delete_rs_state; 1238 1239 r300->context.create_sampler_state = r300_create_sampler_state; 1240 r300->context.bind_fragment_sampler_states = r300_bind_sampler_states; 1241 r300->context.bind_vertex_sampler_states = r300_lacks_vertex_textures; 1242 r300->context.delete_sampler_state = r300_delete_sampler_state; 1243 1244 r300->context.set_fragment_sampler_textures = r300_set_sampler_textures; 1245 1246 r300->context.set_scissor_state = r300_set_scissor_state; 1247 1248 r300->context.set_viewport_state = r300_set_viewport_state; 1249 1250 r300->context.set_vertex_buffers = r300_set_vertex_buffers; 1251 r300->context.set_vertex_elements = r300_set_vertex_elements; 1252 1253 r300->context.create_vs_state = r300_create_vs_state; 1254 r300->context.bind_vs_state = r300_bind_vs_state; 1255 r300->context.delete_vs_state = r300_delete_vs_state; 1256} 1257