r300_state.c revision d044ecbe7625af1118655bcc9dba7ed00342534f
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_emit.h" 36#include "r300_reg.h" 37#include "r300_screen.h" 38#include "r300_screen_buffer.h" 39#include "r300_state.h" 40#include "r300_state_inlines.h" 41#include "r300_fs.h" 42#include "r300_texture.h" 43#include "r300_vs.h" 44#include "r300_winsys.h" 45 46/* r300_state: Functions used to intialize state context by translating 47 * Gallium state objects into semi-native r300 state objects. */ 48 49#define UPDATE_STATE(cso, atom) \ 50 if (cso != atom.state) { \ 51 atom.state = cso; \ 52 atom.dirty = TRUE; \ 53 } 54 55static boolean blend_discard_if_src_alpha_0(unsigned srcRGB, unsigned srcA, 56 unsigned dstRGB, unsigned dstA) 57{ 58 /* If the blend equation is ADD or REVERSE_SUBTRACT, 59 * SRC_ALPHA == 0, and the following state is set, the colorbuffer 60 * will not be changed. 61 * Notice that the dst factors are the src factors inverted. */ 62 return (srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 63 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 64 srcRGB == PIPE_BLENDFACTOR_ZERO) && 65 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 66 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 67 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 68 srcA == PIPE_BLENDFACTOR_ZERO) && 69 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 70 dstRGB == PIPE_BLENDFACTOR_ONE) && 71 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 72 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 73 dstA == PIPE_BLENDFACTOR_ONE); 74} 75 76static boolean blend_discard_if_src_alpha_1(unsigned srcRGB, unsigned srcA, 77 unsigned dstRGB, unsigned dstA) 78{ 79 /* If the blend equation is ADD or REVERSE_SUBTRACT, 80 * SRC_ALPHA == 1, and the following state is set, the colorbuffer 81 * will not be changed. 82 * Notice that the dst factors are the src factors inverted. */ 83 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 84 srcRGB == PIPE_BLENDFACTOR_ZERO) && 85 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 86 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 87 srcA == PIPE_BLENDFACTOR_ZERO) && 88 (dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 89 dstRGB == PIPE_BLENDFACTOR_ONE) && 90 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 91 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 92 dstA == PIPE_BLENDFACTOR_ONE); 93} 94 95static boolean blend_discard_if_src_color_0(unsigned srcRGB, unsigned srcA, 96 unsigned dstRGB, unsigned dstA) 97{ 98 /* If the blend equation is ADD or REVERSE_SUBTRACT, 99 * SRC_COLOR == (0,0,0), and the following state is set, the colorbuffer 100 * will not be changed. 101 * Notice that the dst factors are the src factors inverted. */ 102 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 103 srcRGB == PIPE_BLENDFACTOR_ZERO) && 104 (srcA == PIPE_BLENDFACTOR_ZERO) && 105 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 106 dstRGB == PIPE_BLENDFACTOR_ONE) && 107 (dstA == PIPE_BLENDFACTOR_ONE); 108} 109 110static boolean blend_discard_if_src_color_1(unsigned srcRGB, unsigned srcA, 111 unsigned dstRGB, unsigned dstA) 112{ 113 /* If the blend equation is ADD or REVERSE_SUBTRACT, 114 * SRC_COLOR == (1,1,1), and the following state is set, the colorbuffer 115 * will not be changed. 116 * Notice that the dst factors are the src factors inverted. */ 117 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 118 srcRGB == PIPE_BLENDFACTOR_ZERO) && 119 (srcA == PIPE_BLENDFACTOR_ZERO) && 120 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 121 dstRGB == PIPE_BLENDFACTOR_ONE) && 122 (dstA == PIPE_BLENDFACTOR_ONE); 123} 124 125static boolean blend_discard_if_src_alpha_color_0(unsigned srcRGB, unsigned srcA, 126 unsigned dstRGB, unsigned dstA) 127{ 128 /* If the blend equation is ADD or REVERSE_SUBTRACT, 129 * SRC_ALPHA_COLOR == (0,0,0,0), and the following state is set, 130 * the colorbuffer will not be changed. 131 * Notice that the dst factors are the src factors inverted. */ 132 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 133 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 134 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 135 srcRGB == PIPE_BLENDFACTOR_ZERO) && 136 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 137 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 138 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 139 srcA == PIPE_BLENDFACTOR_ZERO) && 140 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 141 dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 142 dstRGB == PIPE_BLENDFACTOR_ONE) && 143 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 144 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 145 dstA == PIPE_BLENDFACTOR_ONE); 146} 147 148static boolean blend_discard_if_src_alpha_color_1(unsigned srcRGB, unsigned srcA, 149 unsigned dstRGB, unsigned dstA) 150{ 151 /* If the blend equation is ADD or REVERSE_SUBTRACT, 152 * SRC_ALPHA_COLOR == (1,1,1,1), and the following state is set, 153 * the colorbuffer will not be changed. 154 * Notice that the dst factors are the src factors inverted. */ 155 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 156 srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 157 srcRGB == PIPE_BLENDFACTOR_ZERO) && 158 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 159 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 160 srcA == PIPE_BLENDFACTOR_ZERO) && 161 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 162 dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 163 dstRGB == PIPE_BLENDFACTOR_ONE) && 164 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 165 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 166 dstA == PIPE_BLENDFACTOR_ONE); 167} 168 169static unsigned bgra_cmask(unsigned mask) 170{ 171 /* Gallium uses RGBA color ordering while R300 expects BGRA. */ 172 173 return ((mask & PIPE_MASK_R) << 2) | 174 ((mask & PIPE_MASK_B) >> 2) | 175 (mask & (PIPE_MASK_G | PIPE_MASK_A)); 176} 177 178/* Create a new blend state based on the CSO blend state. 179 * 180 * This encompasses alpha blending, logic/raster ops, and blend dithering. */ 181static void* r300_create_blend_state(struct pipe_context* pipe, 182 const struct pipe_blend_state* state) 183{ 184 struct r300_screen* r300screen = r300_screen(pipe->screen); 185 struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state); 186 187 if (state->rt[0].blend_enable) 188 { 189 unsigned eqRGB = state->rt[0].rgb_func; 190 unsigned srcRGB = state->rt[0].rgb_src_factor; 191 unsigned dstRGB = state->rt[0].rgb_dst_factor; 192 193 unsigned eqA = state->rt[0].alpha_func; 194 unsigned srcA = state->rt[0].alpha_src_factor; 195 unsigned dstA = state->rt[0].alpha_dst_factor; 196 197 /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha, 198 * this is just the crappy D3D naming */ 199 blend->blend_control = R300_ALPHA_BLEND_ENABLE | 200 r300_translate_blend_function(eqRGB) | 201 ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) | 202 ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT); 203 204 /* Optimization: some operations do not require the destination color. 205 * 206 * When SRC_ALPHA_SATURATE is used, colorbuffer reads must be enabled, 207 * otherwise blending gives incorrect results. It seems to be 208 * a hardware bug. */ 209 if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN || 210 eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX || 211 dstRGB != PIPE_BLENDFACTOR_ZERO || 212 dstA != PIPE_BLENDFACTOR_ZERO || 213 srcRGB == PIPE_BLENDFACTOR_DST_COLOR || 214 srcRGB == PIPE_BLENDFACTOR_DST_ALPHA || 215 srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR || 216 srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA || 217 srcA == PIPE_BLENDFACTOR_DST_COLOR || 218 srcA == PIPE_BLENDFACTOR_DST_ALPHA || 219 srcA == PIPE_BLENDFACTOR_INV_DST_COLOR || 220 srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA || 221 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) { 222 /* Enable reading from the colorbuffer. */ 223 blend->blend_control |= R300_READ_ENABLE; 224 225 if (r300screen->caps.is_r500) { 226 /* Optimization: Depending on incoming pixels, we can 227 * conditionally disable the reading in hardware... */ 228 if (eqRGB != PIPE_BLEND_MIN && eqA != PIPE_BLEND_MIN && 229 eqRGB != PIPE_BLEND_MAX && eqA != PIPE_BLEND_MAX) { 230 /* Disable reading if SRC_ALPHA == 0. */ 231 if ((dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 232 dstRGB == PIPE_BLENDFACTOR_ZERO) && 233 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 234 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 235 dstA == PIPE_BLENDFACTOR_ZERO)) { 236 blend->blend_control |= R500_SRC_ALPHA_0_NO_READ; 237 } 238 239 /* Disable reading if SRC_ALPHA == 1. */ 240 if ((dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 241 dstRGB == PIPE_BLENDFACTOR_ZERO) && 242 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 243 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 244 dstA == PIPE_BLENDFACTOR_ZERO)) { 245 blend->blend_control |= R500_SRC_ALPHA_1_NO_READ; 246 } 247 } 248 } 249 } 250 251 /* Optimization: discard pixels which don't change the colorbuffer. 252 * 253 * The code below is non-trivial and some math is involved. 254 * 255 * Discarding pixels must be disabled when FP16 AA is enabled. 256 * This is a hardware bug. Also, this implementation wouldn't work 257 * with FP blending enabled and equation clamping disabled. 258 * 259 * Equations other than ADD are rarely used and therefore won't be 260 * optimized. */ 261 if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) && 262 (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) { 263 /* ADD: X+Y 264 * REVERSE_SUBTRACT: Y-X 265 * 266 * The idea is: 267 * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1, 268 * then CB will not be changed. 269 * 270 * Given the srcFactor and dstFactor variables, we can derive 271 * what src and dst should be equal to and discard appropriate 272 * pixels. 273 */ 274 if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) { 275 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0; 276 } else if (blend_discard_if_src_alpha_1(srcRGB, srcA, 277 dstRGB, dstA)) { 278 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1; 279 } else if (blend_discard_if_src_color_0(srcRGB, srcA, 280 dstRGB, dstA)) { 281 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0; 282 } else if (blend_discard_if_src_color_1(srcRGB, srcA, 283 dstRGB, dstA)) { 284 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1; 285 } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA, 286 dstRGB, dstA)) { 287 blend->blend_control |= 288 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0; 289 } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA, 290 dstRGB, dstA)) { 291 blend->blend_control |= 292 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1; 293 } 294 } 295 296 /* separate alpha */ 297 if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { 298 blend->blend_control |= R300_SEPARATE_ALPHA_ENABLE; 299 blend->alpha_blend_control = 300 r300_translate_blend_function(eqA) | 301 (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) | 302 (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT); 303 } 304 } 305 306 /* PIPE_LOGICOP_* don't need to be translated, fortunately. */ 307 if (state->logicop_enable) { 308 blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE | 309 (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT; 310 } 311 312 /* Color channel masks for all MRTs. */ 313 blend->color_channel_mask = bgra_cmask(state->rt[0].colormask); 314 if (r300screen->caps.is_r500 && state->independent_blend_enable) { 315 if (state->rt[1].blend_enable) { 316 blend->color_channel_mask |= bgra_cmask(state->rt[1].colormask) << 4; 317 } 318 if (state->rt[2].blend_enable) { 319 blend->color_channel_mask |= bgra_cmask(state->rt[2].colormask) << 8; 320 } 321 if (state->rt[3].blend_enable) { 322 blend->color_channel_mask |= bgra_cmask(state->rt[3].colormask) << 12; 323 } 324 } 325 326 /* Neither fglrx nor classic r300 ever set this, regardless of dithering 327 * state. Since it's an optional implementation detail, we can leave it 328 * out and never dither. 329 * 330 * This could be revisited if we ever get quality or conformance hints. 331 * 332 if (state->dither) { 333 blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT | 334 R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; 335 } 336 */ 337 338 return (void*)blend; 339} 340 341/* Bind blend state. */ 342static void r300_bind_blend_state(struct pipe_context* pipe, 343 void* state) 344{ 345 struct r300_context* r300 = r300_context(pipe); 346 347 UPDATE_STATE(state, r300->blend_state); 348} 349 350/* Free blend state. */ 351static void r300_delete_blend_state(struct pipe_context* pipe, 352 void* state) 353{ 354 FREE(state); 355} 356 357/* Convert float to 10bit integer */ 358static unsigned float_to_fixed10(float f) 359{ 360 return CLAMP((unsigned)(f * 1023.9f), 0, 1023); 361} 362 363/* Set blend color. 364 * Setup both R300 and R500 registers, figure out later which one to write. */ 365static void r300_set_blend_color(struct pipe_context* pipe, 366 const struct pipe_blend_color* color) 367{ 368 struct r300_context* r300 = r300_context(pipe); 369 struct r300_blend_color_state* state = 370 (struct r300_blend_color_state*)r300->blend_color_state.state; 371 union util_color uc; 372 373 util_pack_color(color->color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); 374 state->blend_color = uc.ui; 375 376 /* XXX if FP16 blending is enabled, we should use the FP16 format */ 377 state->blend_color_red_alpha = 378 float_to_fixed10(color->color[0]) | 379 (float_to_fixed10(color->color[3]) << 16); 380 state->blend_color_green_blue = 381 float_to_fixed10(color->color[2]) | 382 (float_to_fixed10(color->color[1]) << 16); 383 384 r300->blend_color_state.size = r300->screen->caps.is_r500 ? 3 : 2; 385 r300->blend_color_state.dirty = TRUE; 386} 387 388static void r300_set_clip_state(struct pipe_context* pipe, 389 const struct pipe_clip_state* state) 390{ 391 struct r300_context* r300 = r300_context(pipe); 392 393 r300->clip = *state; 394 395 if (r300->screen->caps.has_tcl) { 396 memcpy(r300->clip_state.state, state, sizeof(struct pipe_clip_state)); 397 r300->clip_state.size = 29; 398 } else { 399 draw_flush(r300->draw); 400 draw_set_clip_state(r300->draw, state); 401 r300->clip_state.size = 2; 402 } 403 404 r300->clip_state.dirty = TRUE; 405} 406 407/* Create a new depth, stencil, and alpha state based on the CSO dsa state. 408 * 409 * This contains the depth buffer, stencil buffer, alpha test, and such. 410 * On the Radeon, depth and stencil buffer setup are intertwined, which is 411 * the reason for some of the strange-looking assignments across registers. */ 412static void* 413 r300_create_dsa_state(struct pipe_context* pipe, 414 const struct pipe_depth_stencil_alpha_state* state) 415{ 416 struct r300_capabilities *caps = &r300_screen(pipe->screen)->caps; 417 struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); 418 419 /* Depth test setup. */ 420 if (state->depth.enabled) { 421 dsa->z_buffer_control |= R300_Z_ENABLE; 422 423 if (state->depth.writemask) { 424 dsa->z_buffer_control |= R300_Z_WRITE_ENABLE; 425 } 426 427 dsa->z_stencil_control |= 428 (r300_translate_depth_stencil_function(state->depth.func) << 429 R300_Z_FUNC_SHIFT); 430 } 431 432 /* Stencil buffer setup. */ 433 if (state->stencil[0].enabled) { 434 dsa->z_buffer_control |= R300_STENCIL_ENABLE; 435 dsa->z_stencil_control |= 436 (r300_translate_depth_stencil_function(state->stencil[0].func) << 437 R300_S_FRONT_FUNC_SHIFT) | 438 (r300_translate_stencil_op(state->stencil[0].fail_op) << 439 R300_S_FRONT_SFAIL_OP_SHIFT) | 440 (r300_translate_stencil_op(state->stencil[0].zpass_op) << 441 R300_S_FRONT_ZPASS_OP_SHIFT) | 442 (r300_translate_stencil_op(state->stencil[0].zfail_op) << 443 R300_S_FRONT_ZFAIL_OP_SHIFT); 444 445 dsa->stencil_ref_mask = 446 (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) | 447 (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT); 448 449 if (state->stencil[1].enabled) { 450 dsa->two_sided = TRUE; 451 452 dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK; 453 dsa->z_stencil_control |= 454 (r300_translate_depth_stencil_function(state->stencil[1].func) << 455 R300_S_BACK_FUNC_SHIFT) | 456 (r300_translate_stencil_op(state->stencil[1].fail_op) << 457 R300_S_BACK_SFAIL_OP_SHIFT) | 458 (r300_translate_stencil_op(state->stencil[1].zpass_op) << 459 R300_S_BACK_ZPASS_OP_SHIFT) | 460 (r300_translate_stencil_op(state->stencil[1].zfail_op) << 461 R300_S_BACK_ZFAIL_OP_SHIFT); 462 463 dsa->stencil_ref_bf = 464 (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) | 465 (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT); 466 467 if (caps->is_r500) { 468 dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; 469 } else { 470 dsa->stencil_ref_bf_fallback = 471 (state->stencil[0].valuemask != state->stencil[1].valuemask || 472 state->stencil[0].writemask != state->stencil[1].writemask); 473 } 474 } 475 } 476 477 /* Alpha test setup. */ 478 if (state->alpha.enabled) { 479 dsa->alpha_function = 480 r300_translate_alpha_function(state->alpha.func) | 481 R300_FG_ALPHA_FUNC_ENABLE; 482 483 /* We could use 10bit alpha ref but who needs that? */ 484 dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); 485 486 if (caps->is_r500) 487 dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; 488 } 489 490 return (void*)dsa; 491} 492 493static void r300_update_stencil_ref_fallback_status(struct r300_context *r300) 494{ 495 struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state; 496 497 if (r300->screen->caps.is_r500) { 498 return; 499 } 500 501 r300->stencil_ref_bf_fallback = 502 dsa->stencil_ref_bf_fallback || 503 (dsa->two_sided && 504 r300->stencil_ref.ref_value[0] != r300->stencil_ref.ref_value[1]); 505} 506 507/* Bind DSA state. */ 508static void r300_bind_dsa_state(struct pipe_context* pipe, 509 void* state) 510{ 511 struct r300_context* r300 = r300_context(pipe); 512 513 if (!state) { 514 return; 515 } 516 517 UPDATE_STATE(state, r300->dsa_state); 518 519 r300_update_stencil_ref_fallback_status(r300); 520} 521 522/* Free DSA state. */ 523static void r300_delete_dsa_state(struct pipe_context* pipe, 524 void* state) 525{ 526 FREE(state); 527} 528 529static void r300_set_stencil_ref(struct pipe_context* pipe, 530 const struct pipe_stencil_ref* sr) 531{ 532 struct r300_context* r300 = r300_context(pipe); 533 534 r300->stencil_ref = *sr; 535 r300->dsa_state.dirty = TRUE; 536 537 r300_update_stencil_ref_fallback_status(r300); 538} 539 540/* This switcheroo is needed just because of goddamned MACRO_SWITCH. */ 541static void r300_fb_set_tiling_flags(struct r300_context *r300, 542 const struct pipe_framebuffer_state *old_state, 543 const struct pipe_framebuffer_state *new_state) 544{ 545 struct r300_texture *tex; 546 unsigned i, level; 547 548 /* Set tiling flags for new surfaces. */ 549 for (i = 0; i < new_state->nr_cbufs; i++) { 550 tex = r300_texture(new_state->cbufs[i]->texture); 551 level = new_state->cbufs[i]->level; 552 553 r300->rws->buffer_set_tiling(r300->rws, tex->buffer, 554 tex->pitch[0], 555 tex->microtile, 556 tex->mip_macrotile[level]); 557 } 558 if (new_state->zsbuf) { 559 tex = r300_texture(new_state->zsbuf->texture); 560 level = new_state->zsbuf->level; 561 562 r300->rws->buffer_set_tiling(r300->rws, tex->buffer, 563 tex->pitch[0], 564 tex->microtile, 565 tex->mip_macrotile[level]); 566 } 567} 568 569static void 570 r300_set_framebuffer_state(struct pipe_context* pipe, 571 const struct pipe_framebuffer_state* state) 572{ 573 struct r300_context* r300 = r300_context(pipe); 574 struct pipe_framebuffer_state *old_state = r300->fb_state.state; 575 unsigned max_width, max_height; 576 uint32_t zbuffer_bpp = 0; 577 578 if (state->nr_cbufs > 4) { 579 fprintf(stderr, "r300: Implementation error: Too many MRTs in %s, " 580 "refusing to bind framebuffer state!\n", __FUNCTION__); 581 return; 582 } 583 584 if (r300->screen->caps.is_r500) { 585 max_width = max_height = 4096; 586 } else if (r300->screen->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 fprintf(stderr, "r300: Implementation error: Render targets are too " 594 "big in %s, refusing to bind framebuffer state!\n", __FUNCTION__); 595 return; 596 } 597 598 if (r300->draw) { 599 draw_flush(r300->draw); 600 } 601 602 r300->fb_state.dirty = TRUE; 603 604 /* If nr_cbufs is changed from zero to non-zero or vice versa... */ 605 if (!!old_state->nr_cbufs != !!state->nr_cbufs) { 606 r300->blend_state.dirty = TRUE; 607 } 608 /* If zsbuf is set from NULL to non-NULL or vice versa.. */ 609 if (!!old_state->zsbuf != !!state->zsbuf) { 610 r300->dsa_state.dirty = TRUE; 611 } 612 613 /* The tiling flags are dependent on the surface miplevel, unfortunately. */ 614 r300_fb_set_tiling_flags(r300, r300->fb_state.state, state); 615 616 memcpy(r300->fb_state.state, state, sizeof(struct pipe_framebuffer_state)); 617 618 r300->fb_state.size = (10 * state->nr_cbufs) + (2 * (4 - state->nr_cbufs)) + 619 (state->zsbuf ? 10 : 0) + 9; 620 621 /* Polygon offset depends on the zbuffer bit depth. */ 622 if (state->zsbuf && r300->polygon_offset_enabled) { 623 switch (util_format_get_blocksize(state->zsbuf->texture->format)) { 624 case 2: 625 zbuffer_bpp = 16; 626 break; 627 case 4: 628 zbuffer_bpp = 24; 629 break; 630 } 631 632 if (r300->zbuffer_bpp != zbuffer_bpp) { 633 r300->zbuffer_bpp = zbuffer_bpp; 634 r300->rs_state.dirty = TRUE; 635 } 636 } 637} 638 639/* Create fragment shader state. */ 640static void* r300_create_fs_state(struct pipe_context* pipe, 641 const struct pipe_shader_state* shader) 642{ 643 struct r300_fragment_shader* fs = NULL; 644 645 fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader); 646 647 /* Copy state directly into shader. */ 648 fs->state = *shader; 649 fs->state.tokens = tgsi_dup_tokens(shader->tokens); 650 651 return (void*)fs; 652} 653 654void r300_mark_fs_code_dirty(struct r300_context *r300) 655{ 656 struct r300_fragment_shader* fs = r300_fs(r300); 657 658 r300->fs.dirty = TRUE; 659 r300->fs_rc_constant_state.dirty = TRUE; 660 r300->fs_constants.dirty = TRUE; 661 662 if (r300->screen->caps.is_r500) { 663 r300->fs.size = r500_get_fs_atom_size(r300); 664 r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 7; 665 r300->fs_constants.size = fs->shader->externals_count * 4 + 3; 666 } else { 667 r300->fs.size = r300_get_fs_atom_size(r300); 668 r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 5; 669 r300->fs_constants.size = fs->shader->externals_count * 4 + 1; 670 } 671} 672 673/* Bind fragment shader state. */ 674static void r300_bind_fs_state(struct pipe_context* pipe, void* shader) 675{ 676 struct r300_context* r300 = r300_context(pipe); 677 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 678 679 if (fs == NULL) { 680 r300->fs.state = NULL; 681 return; 682 } 683 684 r300->fs.state = fs; 685 r300_pick_fragment_shader(r300); 686 r300_mark_fs_code_dirty(r300); 687 688 r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ 689} 690 691/* Delete fragment shader state. */ 692static void r300_delete_fs_state(struct pipe_context* pipe, void* shader) 693{ 694 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 695 struct r300_fragment_shader_code *tmp, *ptr = fs->first; 696 697 while (ptr) { 698 tmp = ptr; 699 ptr = ptr->next; 700 rc_constants_destroy(&tmp->code.constants); 701 FREE(tmp); 702 } 703 FREE((void*)fs->state.tokens); 704 FREE(shader); 705} 706 707static void r300_set_polygon_stipple(struct pipe_context* pipe, 708 const struct pipe_poly_stipple* state) 709{ 710 /* XXX no idea how to set this up, but not terribly important */ 711} 712 713/* Create a new rasterizer state based on the CSO rasterizer state. 714 * 715 * This is a very large chunk of state, and covers most of the graphics 716 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks. 717 * 718 * In a not entirely unironic sidenote, this state has nearly nothing to do 719 * with the actual block on the Radeon called the rasterizer (RS). */ 720static void* r300_create_rs_state(struct pipe_context* pipe, 721 const struct pipe_rasterizer_state* state) 722{ 723 struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state); 724 int i; 725 float psiz; 726 727 /* Copy rasterizer state for Draw. */ 728 rs->rs = *state; 729 730#ifdef PIPE_ARCH_LITTLE_ENDIAN 731 rs->vap_control_status = R300_VC_NO_SWAP; 732#else 733 rs->vap_control_status = R300_VC_32BIT_SWAP; 734#endif 735 736 /* If no TCL engine is present, turn off the HW TCL. */ 737 if (!r300_screen(pipe->screen)->caps.has_tcl) { 738 rs->vap_control_status |= R300_VAP_TCL_BYPASS; 739 } 740 741 /* Point size width and height. */ 742 rs->point_size = 743 pack_float_16_6x(state->point_size) | 744 (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT); 745 746 /* Point size clamping. */ 747 if (state->point_size_per_vertex) { 748 /* Per-vertex point size. 749 * Clamp to [0, max FB size] */ 750 psiz = pipe->screen->get_paramf(pipe->screen, 751 PIPE_CAP_MAX_POINT_WIDTH); 752 rs->point_minmax = 753 pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT; 754 } else { 755 /* We cannot disable the point-size vertex output, 756 * so clamp it. */ 757 psiz = state->point_size; 758 rs->point_minmax = 759 (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MIN_SHIFT) | 760 (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT); 761 } 762 763 /* Line control. */ 764 rs->line_control = pack_float_16_6x(state->line_width) | 765 R300_GA_LINE_CNTL_END_TYPE_COMP; 766 767 /* Enable polygon mode */ 768 if (state->fill_cw != PIPE_POLYGON_MODE_FILL || 769 state->fill_ccw != PIPE_POLYGON_MODE_FILL) { 770 rs->polygon_mode = R300_GA_POLY_MODE_DUAL; 771 } 772 773 /* Radeons don't think in "CW/CCW", they think in "front/back". */ 774 if (state->front_winding == PIPE_WINDING_CW) { 775 rs->cull_mode = R300_FRONT_FACE_CW; 776 777 /* Polygon offset */ 778 if (state->offset_cw) { 779 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 780 } 781 if (state->offset_ccw) { 782 rs->polygon_offset_enable |= R300_BACK_ENABLE; 783 } 784 785 /* Polygon mode */ 786 if (rs->polygon_mode) { 787 rs->polygon_mode |= 788 r300_translate_polygon_mode_front(state->fill_cw); 789 rs->polygon_mode |= 790 r300_translate_polygon_mode_back(state->fill_ccw); 791 } 792 } else { 793 rs->cull_mode = R300_FRONT_FACE_CCW; 794 795 /* Polygon offset */ 796 if (state->offset_ccw) { 797 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 798 } 799 if (state->offset_cw) { 800 rs->polygon_offset_enable |= R300_BACK_ENABLE; 801 } 802 803 /* Polygon mode */ 804 if (rs->polygon_mode) { 805 rs->polygon_mode |= 806 r300_translate_polygon_mode_front(state->fill_ccw); 807 rs->polygon_mode |= 808 r300_translate_polygon_mode_back(state->fill_cw); 809 } 810 } 811 if (state->front_winding & state->cull_mode) { 812 rs->cull_mode |= R300_CULL_FRONT; 813 } 814 if (~(state->front_winding) & state->cull_mode) { 815 rs->cull_mode |= R300_CULL_BACK; 816 } 817 818 if (rs->polygon_offset_enable) { 819 rs->depth_offset = state->offset_units; 820 rs->depth_scale = state->offset_scale; 821 } 822 823 if (state->line_stipple_enable) { 824 rs->line_stipple_config = 825 R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE | 826 (fui((float)state->line_stipple_factor) & 827 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK); 828 /* XXX this might need to be scaled up */ 829 rs->line_stipple_value = state->line_stipple_pattern; 830 } 831 832 if (state->flatshade) { 833 rs->color_control = R300_SHADE_MODEL_FLAT; 834 } else { 835 rs->color_control = R300_SHADE_MODEL_SMOOTH; 836 } 837 838 rs->clip_rule = state->scissor ? 0xAAAA : 0xFFFF; 839 840 /* Point sprites */ 841 if (state->sprite_coord_enable) { 842 rs->stuffing_enable = R300_GB_POINT_STUFF_ENABLE; 843 for (i = 0; i < 8; i++) { 844 if (state->sprite_coord_enable & (1 << i)) 845 rs->stuffing_enable |= 846 R300_GB_TEX_STR << (R300_GB_TEX0_SOURCE_SHIFT + (i*2)); 847 } 848 849 rs->point_texcoord_left = 0.0f; 850 rs->point_texcoord_right = 1.0f; 851 852 switch (state->sprite_coord_mode) { 853 case PIPE_SPRITE_COORD_UPPER_LEFT: 854 rs->point_texcoord_top = 0.0f; 855 rs->point_texcoord_bottom = 1.0f; 856 break; 857 case PIPE_SPRITE_COORD_LOWER_LEFT: 858 rs->point_texcoord_top = 1.0f; 859 rs->point_texcoord_bottom = 0.0f; 860 break; 861 } 862 } 863 864 return (void*)rs; 865} 866 867/* Bind rasterizer state. */ 868static void r300_bind_rs_state(struct pipe_context* pipe, void* state) 869{ 870 struct r300_context* r300 = r300_context(pipe); 871 struct r300_rs_state* rs = (struct r300_rs_state*)state; 872 int last_sprite_coord_enable = r300->sprite_coord_enable; 873 boolean last_two_sided_color = r300->two_sided_color; 874 875 if (r300->draw) { 876 draw_flush(r300->draw); 877 draw_set_rasterizer_state(r300->draw, &rs->rs, state); 878 } 879 880 if (rs) { 881 r300->polygon_offset_enabled = rs->rs.offset_cw || rs->rs.offset_ccw; 882 r300->sprite_coord_enable = rs->rs.sprite_coord_enable; 883 r300->two_sided_color = rs->rs.light_twoside; 884 } else { 885 r300->polygon_offset_enabled = FALSE; 886 r300->sprite_coord_enable = 0; 887 r300->two_sided_color = FALSE; 888 } 889 890 UPDATE_STATE(state, r300->rs_state); 891 r300->rs_state.size = 27 + (r300->polygon_offset_enabled ? 5 : 0); 892 893 if (last_sprite_coord_enable != r300->sprite_coord_enable || 894 last_two_sided_color != r300->two_sided_color) { 895 r300->rs_block_state.dirty = TRUE; 896 } 897} 898 899/* Free rasterizer state. */ 900static void r300_delete_rs_state(struct pipe_context* pipe, void* state) 901{ 902 FREE(state); 903} 904 905static void* 906 r300_create_sampler_state(struct pipe_context* pipe, 907 const struct pipe_sampler_state* state) 908{ 909 struct r300_context* r300 = r300_context(pipe); 910 struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state); 911 boolean is_r500 = r300->screen->caps.is_r500; 912 int lod_bias; 913 union util_color uc; 914 915 sampler->state = *state; 916 917 sampler->filter0 |= 918 (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) | 919 (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) | 920 (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT); 921 922 sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter, 923 state->mag_img_filter, 924 state->min_mip_filter, 925 state->max_anisotropy > 0); 926 927 sampler->filter0 |= r300_anisotropy(state->max_anisotropy); 928 929 /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */ 930 /* We must pass these to the merge function to clamp them properly. */ 931 sampler->min_lod = MAX2((unsigned)state->min_lod, 0); 932 sampler->max_lod = MAX2((unsigned)ceilf(state->max_lod), 0); 933 934 lod_bias = CLAMP((int)(state->lod_bias * 32 + 1), -(1 << 9), (1 << 9) - 1); 935 936 sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT; 937 938 /* This is very high quality anisotropic filtering for R5xx. 939 * It's good for benchmarking the performance of texturing but 940 * in practice we don't want to slow down the driver because it's 941 * a pretty good performance killer. Feel free to play with it. */ 942 if (DBG_ON(r300, DBG_ANISOHQ) && is_r500) { 943 sampler->filter1 |= r500_anisotropy(state->max_anisotropy); 944 } 945 946 util_pack_color(state->border_color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); 947 sampler->border_color = uc.ui; 948 949 /* R500-specific fixups and optimizations */ 950 if (r300->screen->caps.is_r500) { 951 sampler->filter1 |= R500_BORDER_FIX; 952 } 953 954 return (void*)sampler; 955} 956 957static void r300_bind_sampler_states(struct pipe_context* pipe, 958 unsigned count, 959 void** states) 960{ 961 struct r300_context* r300 = r300_context(pipe); 962 struct r300_textures_state* state = 963 (struct r300_textures_state*)r300->textures_state.state; 964 unsigned tex_units = r300->screen->caps.num_tex_units; 965 966 if (count > tex_units) { 967 return; 968 } 969 970 memcpy(state->sampler_states, states, sizeof(void*) * count); 971 state->sampler_state_count = count; 972 973 r300->textures_state.dirty = TRUE; 974} 975 976static void r300_lacks_vertex_textures(struct pipe_context* pipe, 977 unsigned count, 978 void** states) 979{ 980} 981 982static void r300_delete_sampler_state(struct pipe_context* pipe, void* state) 983{ 984 FREE(state); 985} 986 987static void r300_set_fragment_sampler_views(struct pipe_context* pipe, 988 unsigned count, 989 struct pipe_sampler_view** views) 990{ 991 struct r300_context* r300 = r300_context(pipe); 992 struct r300_textures_state* state = 993 (struct r300_textures_state*)r300->textures_state.state; 994 struct r300_texture *texture; 995 unsigned i; 996 unsigned tex_units = r300->screen->caps.num_tex_units; 997 boolean dirty_tex = FALSE; 998 999 if (count > tex_units) { 1000 return; 1001 } 1002 1003 for (i = 0; i < count; i++) { 1004 if (&state->sampler_views[i]->base != views[i]) { 1005 pipe_sampler_view_reference( 1006 (struct pipe_sampler_view**)&state->sampler_views[i], 1007 views[i]); 1008 1009 if (!views[i]) { 1010 continue; 1011 } 1012 1013 /* A new sampler view (= texture)... */ 1014 dirty_tex = TRUE; 1015 1016 /* Set the texrect factor in the fragment shader. 1017 * Needed for RECT and NPOT fallback. */ 1018 texture = r300_texture(views[i]->texture); 1019 if (texture->uses_pitch) { 1020 r300->fs_rc_constant_state.dirty = TRUE; 1021 } 1022 } 1023 } 1024 1025 for (i = count; i < tex_units; i++) { 1026 if (state->sampler_views[i]) { 1027 pipe_sampler_view_reference( 1028 (struct pipe_sampler_view**)&state->sampler_views[i], 1029 NULL); 1030 } 1031 } 1032 1033 state->sampler_view_count = count; 1034 1035 r300->textures_state.dirty = TRUE; 1036 1037 if (dirty_tex) { 1038 r300->texture_cache_inval.dirty = TRUE; 1039 } 1040} 1041 1042static struct pipe_sampler_view * 1043r300_create_sampler_view(struct pipe_context *pipe, 1044 struct pipe_resource *texture, 1045 const struct pipe_sampler_view *templ) 1046{ 1047 struct r300_sampler_view *view = CALLOC_STRUCT(r300_sampler_view); 1048 struct r300_texture *tex = r300_texture(texture); 1049 1050 if (view) { 1051 view->base = *templ; 1052 view->base.reference.count = 1; 1053 view->base.context = pipe; 1054 view->base.texture = NULL; 1055 pipe_resource_reference(&view->base.texture, texture); 1056 1057 view->swizzle[0] = templ->swizzle_r; 1058 view->swizzle[1] = templ->swizzle_g; 1059 view->swizzle[2] = templ->swizzle_b; 1060 view->swizzle[3] = templ->swizzle_a; 1061 1062 view->format = tex->tx_format; 1063 view->format.format1 |= r300_translate_texformat(templ->format, 1064 view->swizzle); 1065 if (r300_screen(pipe->screen)->caps.is_r500) { 1066 view->format.format2 |= r500_tx_format_msb_bit(templ->format); 1067 } 1068 } 1069 1070 return (struct pipe_sampler_view*)view; 1071} 1072 1073static void 1074r300_sampler_view_destroy(struct pipe_context *pipe, 1075 struct pipe_sampler_view *view) 1076{ 1077 pipe_resource_reference(&view->texture, NULL); 1078 FREE(view); 1079} 1080 1081static void r300_set_scissor_state(struct pipe_context* pipe, 1082 const struct pipe_scissor_state* state) 1083{ 1084 struct r300_context* r300 = r300_context(pipe); 1085 1086 memcpy(r300->scissor_state.state, state, 1087 sizeof(struct pipe_scissor_state)); 1088 1089 r300->scissor_state.dirty = TRUE; 1090} 1091 1092static void r300_set_viewport_state(struct pipe_context* pipe, 1093 const struct pipe_viewport_state* state) 1094{ 1095 struct r300_context* r300 = r300_context(pipe); 1096 struct r300_viewport_state* viewport = 1097 (struct r300_viewport_state*)r300->viewport_state.state; 1098 1099 r300->viewport = *state; 1100 1101 /* Do the transform in HW. */ 1102 viewport->vte_control = R300_VTX_W0_FMT; 1103 1104 if (state->scale[0] != 1.0f) { 1105 viewport->xscale = state->scale[0]; 1106 viewport->vte_control |= R300_VPORT_X_SCALE_ENA; 1107 } 1108 if (state->scale[1] != 1.0f) { 1109 viewport->yscale = state->scale[1]; 1110 viewport->vte_control |= R300_VPORT_Y_SCALE_ENA; 1111 } 1112 if (state->scale[2] != 1.0f) { 1113 viewport->zscale = state->scale[2]; 1114 viewport->vte_control |= R300_VPORT_Z_SCALE_ENA; 1115 } 1116 if (state->translate[0] != 0.0f) { 1117 viewport->xoffset = state->translate[0]; 1118 viewport->vte_control |= R300_VPORT_X_OFFSET_ENA; 1119 } 1120 if (state->translate[1] != 0.0f) { 1121 viewport->yoffset = state->translate[1]; 1122 viewport->vte_control |= R300_VPORT_Y_OFFSET_ENA; 1123 } 1124 if (state->translate[2] != 0.0f) { 1125 viewport->zoffset = state->translate[2]; 1126 viewport->vte_control |= R300_VPORT_Z_OFFSET_ENA; 1127 } 1128 1129 r300->viewport_state.dirty = TRUE; 1130 if (r300->fs.state && r300_fs(r300)->shader->inputs.wpos != ATTR_UNUSED) { 1131 r300->fs_rc_constant_state.dirty = TRUE; 1132 } 1133} 1134 1135static void r300_set_vertex_buffers(struct pipe_context* pipe, 1136 unsigned count, 1137 const struct pipe_vertex_buffer* buffers) 1138{ 1139 struct r300_context* r300 = r300_context(pipe); 1140 struct pipe_vertex_buffer *vbo; 1141 unsigned i, max_index = (1 << 24) - 1; 1142 boolean any_user_buffer = FALSE; 1143 1144 if (count == r300->vertex_buffer_count && 1145 memcmp(r300->vertex_buffer, buffers, 1146 sizeof(struct pipe_vertex_buffer) * count) == 0) { 1147 return; 1148 } 1149 1150 /* Check if the stride is aligned to the size of DWORD. */ 1151 for (i = 0; i < count; i++) { 1152 if (buffers[i].buffer) { 1153 if (buffers[i].stride % 4 != 0) { 1154 // XXX Shouldn't we align the buffer? 1155 fprintf(stderr, "r300: set_vertex_buffers: " 1156 "Unaligned buffer stride %i isn't supported.\n", 1157 buffers[i].stride); 1158 abort(); 1159 } 1160 } 1161 } 1162 1163 for (i = 0; i < count; i++) { 1164 /* Why, yes, I AM casting away constness. How did you know? */ 1165 vbo = (struct pipe_vertex_buffer*)&buffers[i]; 1166 1167 /* Reference our buffer. */ 1168 pipe_resource_reference(&r300->vertex_buffer[i].buffer, vbo->buffer); 1169 1170 /* Skip NULL buffers */ 1171 if (!buffers[i].buffer) { 1172 continue; 1173 } 1174 1175 if (r300_buffer_is_user_buffer(vbo->buffer)) { 1176 any_user_buffer = TRUE; 1177 } 1178 1179 if (vbo->max_index == ~0) { 1180 /* if no VBO stride then only one vertex value so max index is 1 */ 1181 /* should think about converting to VS constants like svga does */ 1182 if (!vbo->stride) 1183 vbo->max_index = 1; 1184 else 1185 vbo->max_index = 1186 (vbo->buffer->width0 - vbo->buffer_offset) / vbo->stride; 1187 } 1188 1189 max_index = MIN2(vbo->max_index, max_index); 1190 } 1191 1192 for (; i < r300->vertex_buffer_count; i++) { 1193 /* Dereference any old buffers. */ 1194 pipe_resource_reference(&r300->vertex_buffer[i].buffer, NULL); 1195 } 1196 1197 memcpy(r300->vertex_buffer, buffers, 1198 sizeof(struct pipe_vertex_buffer) * count); 1199 1200 r300->vertex_buffer_count = count; 1201 r300->vertex_buffer_max_index = max_index; 1202 r300->any_user_vbs = any_user_buffer; 1203 1204 if (r300->draw) { 1205 draw_flush(r300->draw); 1206 draw_set_vertex_buffers(r300->draw, count, buffers); 1207 } 1208} 1209 1210/* Update the PSC tables. */ 1211static void r300_vertex_psc(struct r300_vertex_element_state *velems) 1212{ 1213 struct r300_vertex_stream_state *vstream = &velems->vertex_stream; 1214 uint16_t type, swizzle; 1215 enum pipe_format format; 1216 unsigned i; 1217 1218 if (velems->count > 16) { 1219 fprintf(stderr, "r300: More than 16 vertex elements are not supported," 1220 " requested %i, using 16.\n", velems->count); 1221 velems->count = 16; 1222 } 1223 1224 /* Vertex shaders have no semantics on their inputs, 1225 * so PSC should just route stuff based on the vertex elements, 1226 * and not on attrib information. */ 1227 for (i = 0; i < velems->count; i++) { 1228 format = velems->velem[i].src_format; 1229 1230 type = r300_translate_vertex_data_type(format) | 1231 (i << R300_DST_VEC_LOC_SHIFT); 1232 swizzle = r300_translate_vertex_data_swizzle(format); 1233 1234 if (i & 1) { 1235 vstream->vap_prog_stream_cntl[i >> 1] |= type << 16; 1236 vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 16; 1237 } else { 1238 vstream->vap_prog_stream_cntl[i >> 1] |= type; 1239 vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle; 1240 } 1241 } 1242 1243 /* Set the last vector in the PSC. */ 1244 if (i) { 1245 i -= 1; 1246 } 1247 vstream->vap_prog_stream_cntl[i >> 1] |= 1248 (R300_LAST_VEC << (i & 1 ? 16 : 0)); 1249 1250 vstream->count = (i >> 1) + 1; 1251} 1252 1253static void* r300_create_vertex_elements_state(struct pipe_context* pipe, 1254 unsigned count, 1255 const struct pipe_vertex_element* attribs) 1256{ 1257 struct r300_vertex_element_state *velems; 1258 unsigned i, size; 1259 enum pipe_format *format; 1260 1261 assert(count <= PIPE_MAX_ATTRIBS); 1262 velems = CALLOC_STRUCT(r300_vertex_element_state); 1263 if (velems != NULL) { 1264 velems->count = count; 1265 memcpy(velems->velem, attribs, sizeof(struct pipe_vertex_element) * count); 1266 1267 if (r300_screen(pipe->screen)->caps.has_tcl) { 1268 r300_vertex_psc(velems); 1269 1270 /* Check if the format is aligned to the size of DWORD. 1271 * We only care about the blocksizes of the formats since 1272 * swizzles are already set up. */ 1273 for (i = 0; i < count; i++) { 1274 format = &velems->velem[i].src_format; 1275 1276 /* Replace some formats with their aligned counterparts, 1277 * this is OK because we check for aligned strides too. */ 1278 switch (*format) { 1279 /* Align to RGBA8. */ 1280 case PIPE_FORMAT_R8_UNORM: 1281 case PIPE_FORMAT_R8G8_UNORM: 1282 case PIPE_FORMAT_R8G8B8_UNORM: 1283 *format = PIPE_FORMAT_R8G8B8A8_UNORM; 1284 continue; 1285 case PIPE_FORMAT_R8_SNORM: 1286 case PIPE_FORMAT_R8G8_SNORM: 1287 case PIPE_FORMAT_R8G8B8_SNORM: 1288 *format = PIPE_FORMAT_R8G8B8A8_SNORM; 1289 continue; 1290 case PIPE_FORMAT_R8_USCALED: 1291 case PIPE_FORMAT_R8G8_USCALED: 1292 case PIPE_FORMAT_R8G8B8_USCALED: 1293 *format = PIPE_FORMAT_R8G8B8A8_USCALED; 1294 continue; 1295 case PIPE_FORMAT_R8_SSCALED: 1296 case PIPE_FORMAT_R8G8_SSCALED: 1297 case PIPE_FORMAT_R8G8B8_SSCALED: 1298 *format = PIPE_FORMAT_R8G8B8A8_SSCALED; 1299 continue; 1300 1301 /* Align to RG16. */ 1302 case PIPE_FORMAT_R16_UNORM: 1303 *format = PIPE_FORMAT_R16G16_UNORM; 1304 continue; 1305 case PIPE_FORMAT_R16_SNORM: 1306 *format = PIPE_FORMAT_R16G16_SNORM; 1307 continue; 1308 case PIPE_FORMAT_R16_USCALED: 1309 *format = PIPE_FORMAT_R16G16_USCALED; 1310 continue; 1311 case PIPE_FORMAT_R16_SSCALED: 1312 *format = PIPE_FORMAT_R16G16_SSCALED; 1313 continue; 1314 case PIPE_FORMAT_R16_FLOAT: 1315 *format = PIPE_FORMAT_R16G16_FLOAT; 1316 continue; 1317 1318 /* Align to RGBA16. */ 1319 case PIPE_FORMAT_R16G16B16_UNORM: 1320 *format = PIPE_FORMAT_R16G16B16A16_UNORM; 1321 continue; 1322 case PIPE_FORMAT_R16G16B16_SNORM: 1323 *format = PIPE_FORMAT_R16G16B16A16_SNORM; 1324 continue; 1325 case PIPE_FORMAT_R16G16B16_USCALED: 1326 *format = PIPE_FORMAT_R16G16B16A16_USCALED; 1327 continue; 1328 case PIPE_FORMAT_R16G16B16_SSCALED: 1329 *format = PIPE_FORMAT_R16G16B16A16_SSCALED; 1330 continue; 1331 case PIPE_FORMAT_R16G16B16_FLOAT: 1332 *format = PIPE_FORMAT_R16G16B16A16_FLOAT; 1333 continue; 1334 1335 default:; 1336 } 1337 1338 size = util_format_get_blocksize(*format); 1339 1340 if (size % 4 != 0) { 1341 /* XXX Shouldn't we align the format? */ 1342 fprintf(stderr, "r300_create_vertex_elements_state: " 1343 "Unaligned format %s:%i isn't supported\n", 1344 util_format_short_name(*format), size); 1345 assert(0); 1346 abort(); 1347 } 1348 } 1349 1350 } 1351 } 1352 return velems; 1353} 1354 1355static void r300_bind_vertex_elements_state(struct pipe_context *pipe, 1356 void *state) 1357{ 1358 struct r300_context *r300 = r300_context(pipe); 1359 struct r300_vertex_element_state *velems = state; 1360 1361 if (velems == NULL) { 1362 return; 1363 } 1364 1365 r300->velems = velems; 1366 1367 if (r300->draw) { 1368 draw_flush(r300->draw); 1369 draw_set_vertex_elements(r300->draw, velems->count, velems->velem); 1370 } 1371 1372 UPDATE_STATE(&velems->vertex_stream, r300->vertex_stream_state); 1373 r300->vertex_stream_state.size = (1 + velems->vertex_stream.count) * 2; 1374} 1375 1376static void r300_delete_vertex_elements_state(struct pipe_context *pipe, void *state) 1377{ 1378 FREE(state); 1379} 1380 1381static void* r300_create_vs_state(struct pipe_context* pipe, 1382 const struct pipe_shader_state* shader) 1383{ 1384 struct r300_context* r300 = r300_context(pipe); 1385 1386 struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader); 1387 1388 /* Copy state directly into shader. */ 1389 vs->state = *shader; 1390 vs->state.tokens = tgsi_dup_tokens(shader->tokens); 1391 1392 if (r300->screen->caps.has_tcl) { 1393 r300_translate_vertex_shader(r300, vs, vs->state.tokens); 1394 } else { 1395 vs->draw_vs = draw_create_vertex_shader(r300->draw, shader); 1396 } 1397 1398 return vs; 1399} 1400 1401static void r300_bind_vs_state(struct pipe_context* pipe, void* shader) 1402{ 1403 struct r300_context* r300 = r300_context(pipe); 1404 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 1405 1406 if (vs == NULL) { 1407 r300->vs_state.state = NULL; 1408 return; 1409 } 1410 if (vs == r300->vs_state.state) { 1411 return; 1412 } 1413 r300->vs_state.state = vs; 1414 1415 /* The majority of the RS block bits is dependent on the vertex shader. */ 1416 r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ 1417 1418 if (r300->screen->caps.has_tcl) { 1419 r300->vs_state.dirty = TRUE; 1420 r300->vs_state.size = 1421 vs->code.length + 9 + 1422 (vs->immediates_count ? vs->immediates_count * 4 + 3 : 0); 1423 1424 if (vs->externals_count) { 1425 r300->vs_constants.dirty = TRUE; 1426 r300->vs_constants.size = vs->externals_count * 4 + 3; 1427 } else { 1428 r300->vs_constants.size = 0; 1429 } 1430 1431 r300->pvs_flush.dirty = TRUE; 1432 } else { 1433 draw_flush(r300->draw); 1434 draw_bind_vertex_shader(r300->draw, 1435 (struct draw_vertex_shader*)vs->draw_vs); 1436 } 1437} 1438 1439static void r300_delete_vs_state(struct pipe_context* pipe, void* shader) 1440{ 1441 struct r300_context* r300 = r300_context(pipe); 1442 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 1443 1444 if (r300->screen->caps.has_tcl) { 1445 rc_constants_destroy(&vs->code.constants); 1446 } else { 1447 draw_delete_vertex_shader(r300->draw, 1448 (struct draw_vertex_shader*)vs->draw_vs); 1449 } 1450 1451 FREE((void*)vs->state.tokens); 1452 FREE(shader); 1453} 1454 1455static void r300_set_constant_buffer(struct pipe_context *pipe, 1456 uint shader, uint index, 1457 struct pipe_resource *buf) 1458{ 1459 struct r300_context* r300 = r300_context(pipe); 1460 struct r300_constant_buffer *cbuf; 1461 struct pipe_transfer *tr; 1462 void *mapped; 1463 int max_size = 0; 1464 1465 switch (shader) { 1466 case PIPE_SHADER_VERTEX: 1467 cbuf = (struct r300_constant_buffer*)r300->vs_constants.state; 1468 max_size = 256; 1469 break; 1470 case PIPE_SHADER_FRAGMENT: 1471 cbuf = (struct r300_constant_buffer*)r300->fs_constants.state; 1472 if (r300->screen->caps.is_r500) { 1473 max_size = 256; 1474 } else { 1475 max_size = 32; 1476 } 1477 break; 1478 default: 1479 assert(0); 1480 return; 1481 } 1482 1483 if (buf == NULL || buf->width0 == 0 || 1484 (mapped = pipe_buffer_map(pipe, buf, PIPE_TRANSFER_READ, &tr)) == NULL) 1485 { 1486 cbuf->count = 0; 1487 return; 1488 } 1489 1490 assert((buf->width0 % 4 * sizeof(float)) == 0); 1491 1492 /* Check the size of the constant buffer. */ 1493 /* XXX Subtract immediates and RC_STATE_* variables. */ 1494 if (buf->width0 > (sizeof(float) * 4 * max_size)) { 1495 fprintf(stderr, "r300: Max size of the constant buffer is " 1496 "%i*4 floats.\n", max_size); 1497 abort(); 1498 } 1499 1500 memcpy(cbuf->constants, mapped, buf->width0); 1501 cbuf->count = buf->width0 / (4 * sizeof(float)); 1502 pipe_buffer_unmap(pipe, buf, tr); 1503 1504 if (shader == PIPE_SHADER_VERTEX) { 1505 if (r300->screen->caps.has_tcl) { 1506 if (r300->vs_constants.size) { 1507 r300->vs_constants.dirty = TRUE; 1508 } 1509 r300->pvs_flush.dirty = TRUE; 1510 } else if (r300->draw) { 1511 draw_set_mapped_constant_buffer(r300->draw, PIPE_SHADER_VERTEX, 1512 0, cbuf->constants, 1513 buf->width0); 1514 } 1515 } else if (shader == PIPE_SHADER_FRAGMENT) { 1516 r300->fs_constants.dirty = TRUE; 1517 } 1518} 1519 1520void r300_init_state_functions(struct r300_context* r300) 1521{ 1522 r300->context.create_blend_state = r300_create_blend_state; 1523 r300->context.bind_blend_state = r300_bind_blend_state; 1524 r300->context.delete_blend_state = r300_delete_blend_state; 1525 1526 r300->context.set_blend_color = r300_set_blend_color; 1527 1528 r300->context.set_clip_state = r300_set_clip_state; 1529 1530 r300->context.set_constant_buffer = r300_set_constant_buffer; 1531 1532 r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state; 1533 r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state; 1534 r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state; 1535 1536 r300->context.set_stencil_ref = r300_set_stencil_ref; 1537 1538 r300->context.set_framebuffer_state = r300_set_framebuffer_state; 1539 1540 r300->context.create_fs_state = r300_create_fs_state; 1541 r300->context.bind_fs_state = r300_bind_fs_state; 1542 r300->context.delete_fs_state = r300_delete_fs_state; 1543 1544 r300->context.set_polygon_stipple = r300_set_polygon_stipple; 1545 1546 r300->context.create_rasterizer_state = r300_create_rs_state; 1547 r300->context.bind_rasterizer_state = r300_bind_rs_state; 1548 r300->context.delete_rasterizer_state = r300_delete_rs_state; 1549 1550 r300->context.create_sampler_state = r300_create_sampler_state; 1551 r300->context.bind_fragment_sampler_states = r300_bind_sampler_states; 1552 r300->context.bind_vertex_sampler_states = r300_lacks_vertex_textures; 1553 r300->context.delete_sampler_state = r300_delete_sampler_state; 1554 1555 r300->context.set_fragment_sampler_views = r300_set_fragment_sampler_views; 1556 r300->context.create_sampler_view = r300_create_sampler_view; 1557 r300->context.sampler_view_destroy = r300_sampler_view_destroy; 1558 1559 r300->context.set_scissor_state = r300_set_scissor_state; 1560 1561 r300->context.set_viewport_state = r300_set_viewport_state; 1562 1563 r300->context.set_vertex_buffers = r300_set_vertex_buffers; 1564 1565 r300->context.create_vertex_elements_state = r300_create_vertex_elements_state; 1566 r300->context.bind_vertex_elements_state = r300_bind_vertex_elements_state; 1567 r300->context.delete_vertex_elements_state = r300_delete_vertex_elements_state; 1568 1569 r300->context.create_vs_state = r300_create_vs_state; 1570 r300->context.bind_vs_state = r300_bind_vs_state; 1571 r300->context.delete_vs_state = r300_delete_vs_state; 1572} 1573