r300_state.c revision aeb34b248903f98559209db4f095d1096ecb580a
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#include "pipe/internal/p_winsys_screen.h" 34 35#include "r300_context.h" 36#include "r300_reg.h" 37#include "r300_screen.h" 38#include "r300_state_inlines.h" 39#include "r300_fs.h" 40#include "r300_vs.h" 41 42/* r300_state: Functions used to intialize state context by translating 43 * Gallium state objects into semi-native r300 state objects. */ 44 45static boolean blend_discard_if_src_alpha_0(unsigned srcRGB, unsigned srcA, 46 unsigned dstRGB, unsigned dstA) 47{ 48 /* If the blend equation is ADD or REVERSE_SUBTRACT, 49 * SRC_ALPHA == 0, and the following state is set, the colorbuffer 50 * will not be changed. 51 * Notice that the dst factors are the src factors inverted. */ 52 return (srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 53 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 54 srcRGB == PIPE_BLENDFACTOR_ZERO) && 55 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 56 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 57 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 58 srcA == PIPE_BLENDFACTOR_ZERO) && 59 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 60 dstRGB == PIPE_BLENDFACTOR_ONE) && 61 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 62 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 63 dstA == PIPE_BLENDFACTOR_ONE); 64} 65 66static boolean blend_discard_if_src_alpha_1(unsigned srcRGB, unsigned srcA, 67 unsigned dstRGB, unsigned dstA) 68{ 69 /* If the blend equation is ADD or REVERSE_SUBTRACT, 70 * SRC_ALPHA == 1, and the following state is set, the colorbuffer 71 * will not be changed. 72 * Notice that the dst factors are the src factors inverted. */ 73 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 74 srcRGB == PIPE_BLENDFACTOR_ZERO) && 75 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 76 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 77 srcA == PIPE_BLENDFACTOR_ZERO) && 78 (dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 79 dstRGB == PIPE_BLENDFACTOR_ONE) && 80 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 81 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 82 dstA == PIPE_BLENDFACTOR_ONE); 83} 84 85static boolean blend_discard_if_src_color_0(unsigned srcRGB, unsigned srcA, 86 unsigned dstRGB, unsigned dstA) 87{ 88 /* If the blend equation is ADD or REVERSE_SUBTRACT, 89 * SRC_COLOR == (0,0,0), and the following state is set, the colorbuffer 90 * will not be changed. 91 * Notice that the dst factors are the src factors inverted. */ 92 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 93 srcRGB == PIPE_BLENDFACTOR_ZERO) && 94 (srcA == PIPE_BLENDFACTOR_ZERO) && 95 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 96 dstRGB == PIPE_BLENDFACTOR_ONE) && 97 (dstA == PIPE_BLENDFACTOR_ONE); 98} 99 100static boolean blend_discard_if_src_color_1(unsigned srcRGB, unsigned srcA, 101 unsigned dstRGB, unsigned dstA) 102{ 103 /* If the blend equation is ADD or REVERSE_SUBTRACT, 104 * SRC_COLOR == (1,1,1), and the following state is set, the colorbuffer 105 * will not be changed. 106 * Notice that the dst factors are the src factors inverted. */ 107 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 108 srcRGB == PIPE_BLENDFACTOR_ZERO) && 109 (srcA == PIPE_BLENDFACTOR_ZERO) && 110 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 111 dstRGB == PIPE_BLENDFACTOR_ONE) && 112 (dstA == PIPE_BLENDFACTOR_ONE); 113} 114 115static boolean blend_discard_if_src_alpha_color_0(unsigned srcRGB, unsigned srcA, 116 unsigned dstRGB, unsigned dstA) 117{ 118 /* If the blend equation is ADD or REVERSE_SUBTRACT, 119 * SRC_ALPHA_COLOR == (0,0,0,0), and the following state is set, 120 * the colorbuffer will not be changed. 121 * Notice that the dst factors are the src factors inverted. */ 122 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 123 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 124 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 125 srcRGB == PIPE_BLENDFACTOR_ZERO) && 126 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 127 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 128 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 129 srcA == PIPE_BLENDFACTOR_ZERO) && 130 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 131 dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 132 dstRGB == PIPE_BLENDFACTOR_ONE) && 133 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 134 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 135 dstA == PIPE_BLENDFACTOR_ONE); 136} 137 138static boolean blend_discard_if_src_alpha_color_1(unsigned srcRGB, unsigned srcA, 139 unsigned dstRGB, unsigned dstA) 140{ 141 /* If the blend equation is ADD or REVERSE_SUBTRACT, 142 * SRC_ALPHA_COLOR == (1,1,1,1), and the following state is set, 143 * the colorbuffer will not be changed. 144 * Notice that the dst factors are the src factors inverted. */ 145 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 146 srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 147 srcRGB == PIPE_BLENDFACTOR_ZERO) && 148 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 149 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 150 srcA == PIPE_BLENDFACTOR_ZERO) && 151 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 152 dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 153 dstRGB == PIPE_BLENDFACTOR_ONE) && 154 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 155 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 156 dstA == PIPE_BLENDFACTOR_ONE); 157} 158 159/* Create a new blend state based on the CSO blend state. 160 * 161 * This encompasses alpha blending, logic/raster ops, and blend dithering. */ 162static void* r300_create_blend_state(struct pipe_context* pipe, 163 const struct pipe_blend_state* state) 164{ 165 struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state); 166 167 if (state->blend_enable) 168 { 169 unsigned eqRGB = state->rgb_func; 170 unsigned srcRGB = state->rgb_src_factor; 171 unsigned dstRGB = state->rgb_dst_factor; 172 173 unsigned eqA = state->alpha_func; 174 unsigned srcA = state->alpha_src_factor; 175 unsigned dstA = state->alpha_dst_factor; 176 177 /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha, 178 * this is just the crappy D3D naming */ 179 blend->blend_control = R300_ALPHA_BLEND_ENABLE | 180 r300_translate_blend_function(eqRGB) | 181 ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) | 182 ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT); 183 184 /* Optimization: some operations do not require the destination color. 185 * 186 * When SRC_ALPHA_SATURATE is used, colorbuffer reads must be enabled, 187 * otherwise blending gives incorrect results. It seems to be 188 * a hardware bug. */ 189 if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN || 190 eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX || 191 dstRGB != PIPE_BLENDFACTOR_ZERO || 192 dstA != PIPE_BLENDFACTOR_ZERO || 193 srcRGB == PIPE_BLENDFACTOR_DST_COLOR || 194 srcRGB == PIPE_BLENDFACTOR_DST_ALPHA || 195 srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR || 196 srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA || 197 srcA == PIPE_BLENDFACTOR_DST_COLOR || 198 srcA == PIPE_BLENDFACTOR_DST_ALPHA || 199 srcA == PIPE_BLENDFACTOR_INV_DST_COLOR || 200 srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA || 201 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) { 202 /* Enable reading from the colorbuffer. */ 203 blend->blend_control |= R300_READ_ENABLE; 204 205 if (r300_screen(r300_context(pipe)->context.screen)->caps->is_r500) { 206 /* Optimization: Depending on incoming pixels, we can 207 * conditionally disable the reading in hardware... */ 208 if (eqRGB != PIPE_BLEND_MIN && eqA != PIPE_BLEND_MIN && 209 eqRGB != PIPE_BLEND_MAX && eqA != PIPE_BLEND_MAX) { 210 /* Disable reading if SRC_ALPHA == 0. */ 211 if ((dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 212 dstRGB == PIPE_BLENDFACTOR_ZERO) && 213 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 214 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 215 dstA == PIPE_BLENDFACTOR_ZERO)) { 216 blend->blend_control |= R500_SRC_ALPHA_0_NO_READ; 217 } 218 219 /* Disable reading if SRC_ALPHA == 1. */ 220 if ((dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 221 dstRGB == PIPE_BLENDFACTOR_ZERO) && 222 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 223 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 224 dstA == PIPE_BLENDFACTOR_ZERO)) { 225 blend->blend_control |= R500_SRC_ALPHA_1_NO_READ; 226 } 227 } 228 } 229 } 230 231 /* Optimization: discard pixels which don't change the colorbuffer. 232 * 233 * The code below is non-trivial and some math is involved. 234 * 235 * Discarding pixels must be disabled when FP16 AA is enabled. 236 * This is a hardware bug. Also, this implementation wouldn't work 237 * with FP blending enabled and equation clamping disabled. 238 * 239 * Equations other than ADD are rarely used and therefore won't be 240 * optimized. */ 241 if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) && 242 (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) { 243 /* ADD: X+Y 244 * REVERSE_SUBTRACT: Y-X 245 * 246 * The idea is: 247 * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1, 248 * then CB will not be changed. 249 * 250 * Given the srcFactor and dstFactor variables, we can derive 251 * what src and dst should be equal to and discard appropriate 252 * pixels. 253 */ 254 if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) { 255 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0; 256 } else if (blend_discard_if_src_alpha_1(srcRGB, srcA, 257 dstRGB, dstA)) { 258 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1; 259 } else if (blend_discard_if_src_color_0(srcRGB, srcA, 260 dstRGB, dstA)) { 261 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0; 262 } else if (blend_discard_if_src_color_1(srcRGB, srcA, 263 dstRGB, dstA)) { 264 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1; 265 } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA, 266 dstRGB, dstA)) { 267 blend->blend_control |= 268 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0; 269 } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA, 270 dstRGB, dstA)) { 271 blend->blend_control |= 272 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1; 273 } 274 } 275 276 /* separate alpha */ 277 if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { 278 blend->blend_control |= R300_SEPARATE_ALPHA_ENABLE; 279 blend->alpha_blend_control = 280 r300_translate_blend_function(eqA) | 281 (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) | 282 (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT); 283 } 284 } 285 286 /* PIPE_LOGICOP_* don't need to be translated, fortunately. */ 287 if (state->logicop_enable) { 288 blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE | 289 (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT; 290 } 291 292 /* Color Channel Mask */ 293 if (state->colormask & PIPE_MASK_R) { 294 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_RED_MASK0; 295 } 296 if (state->colormask & PIPE_MASK_G) { 297 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_GREEN_MASK0; 298 } 299 if (state->colormask & PIPE_MASK_B) { 300 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_BLUE_MASK0; 301 } 302 if (state->colormask & PIPE_MASK_A) { 303 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_ALPHA_MASK0; 304 } 305 306 if (state->dither) { 307 blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT | 308 R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; 309 } 310 311 return (void*)blend; 312} 313 314/* Bind blend state. */ 315static void r300_bind_blend_state(struct pipe_context* pipe, 316 void* state) 317{ 318 struct r300_context* r300 = r300_context(pipe); 319 320 r300->blend_state.state = state; 321 r300->blend_state.dirty = TRUE; 322} 323 324/* Free blend state. */ 325static void r300_delete_blend_state(struct pipe_context* pipe, 326 void* state) 327{ 328 FREE(state); 329} 330 331/* Convert float to 10bit integer */ 332static unsigned float_to_fixed10(float f) 333{ 334 return CLAMP((unsigned)(f * 1023.9f), 0, 1023); 335} 336 337/* Set blend color. 338 * Setup both R300 and R500 registers, figure out later which one to write. */ 339static void r300_set_blend_color(struct pipe_context* pipe, 340 const struct pipe_blend_color* color) 341{ 342 struct r300_context* r300 = r300_context(pipe); 343 struct r300_screen* r300screen = r300_screen(pipe->screen); 344 struct r300_blend_color_state* state = 345 (struct r300_blend_color_state*)r300->blend_color_state.state; 346 union util_color uc; 347 348 util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); 349 state->blend_color = uc.ui; 350 351 /* XXX if FP16 blending is enabled, we should use the FP16 format */ 352 state->blend_color_red_alpha = 353 float_to_fixed10(color->color[0]) | 354 (float_to_fixed10(color->color[3]) << 16); 355 state->blend_color_green_blue = 356 float_to_fixed10(color->color[2]) | 357 (float_to_fixed10(color->color[1]) << 16); 358 359 r300->blend_color_state.size = r300screen->caps->is_r500 ? 3 : 2; 360 r300->blend_color_state.dirty = TRUE; 361} 362 363static void r300_set_clip_state(struct pipe_context* pipe, 364 const struct pipe_clip_state* state) 365{ 366 struct r300_context* r300 = r300_context(pipe); 367 368 if (r300_screen(pipe->screen)->caps->has_tcl) { 369 memcpy(r300->clip_state.state, state, sizeof(struct pipe_clip_state)); 370 r300->clip_state.size = 29; 371 } else { 372 draw_flush(r300->draw); 373 draw_set_clip_state(r300->draw, state); 374 r300->clip_state.size = 2; 375 } 376 377 r300->clip_state.dirty = TRUE; 378} 379 380/* Create a new depth, stencil, and alpha state based on the CSO dsa state. 381 * 382 * This contains the depth buffer, stencil buffer, alpha test, and such. 383 * On the Radeon, depth and stencil buffer setup are intertwined, which is 384 * the reason for some of the strange-looking assignments across registers. */ 385static void* 386 r300_create_dsa_state(struct pipe_context* pipe, 387 const struct pipe_depth_stencil_alpha_state* state) 388{ 389 struct r300_capabilities *caps = 390 r300_screen(r300_context(pipe)->context.screen)->caps; 391 struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); 392 393 /* Depth test setup. */ 394 if (state->depth.enabled) { 395 dsa->z_buffer_control |= R300_Z_ENABLE; 396 397 if (state->depth.writemask) { 398 dsa->z_buffer_control |= R300_Z_WRITE_ENABLE; 399 } 400 401 dsa->z_stencil_control |= 402 (r300_translate_depth_stencil_function(state->depth.func) << 403 R300_Z_FUNC_SHIFT); 404 } 405 406 /* Stencil buffer setup. */ 407 if (state->stencil[0].enabled) { 408 dsa->z_buffer_control |= R300_STENCIL_ENABLE; 409 dsa->z_stencil_control |= 410 (r300_translate_depth_stencil_function(state->stencil[0].func) << 411 R300_S_FRONT_FUNC_SHIFT) | 412 (r300_translate_stencil_op(state->stencil[0].fail_op) << 413 R300_S_FRONT_SFAIL_OP_SHIFT) | 414 (r300_translate_stencil_op(state->stencil[0].zpass_op) << 415 R300_S_FRONT_ZPASS_OP_SHIFT) | 416 (r300_translate_stencil_op(state->stencil[0].zfail_op) << 417 R300_S_FRONT_ZFAIL_OP_SHIFT); 418 419 dsa->stencil_ref_mask = (state->stencil[0].ref_value) | 420 (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) | 421 (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT); 422 423 if (state->stencil[1].enabled) { 424 dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK; 425 dsa->z_stencil_control |= 426 (r300_translate_depth_stencil_function(state->stencil[1].func) << 427 R300_S_BACK_FUNC_SHIFT) | 428 (r300_translate_stencil_op(state->stencil[1].fail_op) << 429 R300_S_BACK_SFAIL_OP_SHIFT) | 430 (r300_translate_stencil_op(state->stencil[1].zpass_op) << 431 R300_S_BACK_ZPASS_OP_SHIFT) | 432 (r300_translate_stencil_op(state->stencil[1].zfail_op) << 433 R300_S_BACK_ZFAIL_OP_SHIFT); 434 435 /* XXX it seems r3xx doesn't support STENCILREFMASK_BF */ 436 if (caps->is_r500) 437 { 438 dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; 439 dsa->stencil_ref_bf = (state->stencil[1].ref_value) | 440 (state->stencil[1].valuemask << 441 R300_STENCILMASK_SHIFT) | 442 (state->stencil[1].writemask << 443 R300_STENCILWRITEMASK_SHIFT); 444 } 445 } 446 } 447 448 /* Alpha test setup. */ 449 if (state->alpha.enabled) { 450 dsa->alpha_function = 451 r300_translate_alpha_function(state->alpha.func) | 452 R300_FG_ALPHA_FUNC_ENABLE; 453 454 /* XXX figure out why emitting 10bit alpha ref causes CS to dump */ 455 /* always use 8bit alpha ref */ 456 dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); 457 458 if (caps->is_r500) 459 dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; 460 } 461 462 return (void*)dsa; 463} 464 465/* Bind DSA state. */ 466static void r300_bind_dsa_state(struct pipe_context* pipe, 467 void* state) 468{ 469 struct r300_context* r300 = r300_context(pipe); 470 struct r300_screen* r300screen = r300_screen(pipe->screen); 471 472 r300->dsa_state.state = state; 473 r300->dsa_state.size = r300screen->caps->is_r500 ? 8 : 6; 474 r300->dsa_state.dirty = TRUE; 475} 476 477/* Free DSA state. */ 478static void r300_delete_dsa_state(struct pipe_context* pipe, 479 void* state) 480{ 481 FREE(state); 482} 483 484static void 485 r300_set_framebuffer_state(struct pipe_context* pipe, 486 const struct pipe_framebuffer_state* state) 487{ 488 struct r300_context* r300 = r300_context(pipe); 489 490 if (r300->draw) { 491 draw_flush(r300->draw); 492 } 493 494 r300->framebuffer_state = *state; 495 496 /* Don't rely on the order of states being set for the first time. */ 497 r300->dirty_state |= R300_NEW_FRAMEBUFFERS; 498 499 r300->blend_state.dirty = TRUE; 500 r300->dsa_state.dirty = TRUE; 501 r300->scissor_state.dirty = TRUE; 502} 503 504/* Create fragment shader state. */ 505static void* r300_create_fs_state(struct pipe_context* pipe, 506 const struct pipe_shader_state* shader) 507{ 508 struct r300_fragment_shader* fs = NULL; 509 510 fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader); 511 512 /* Copy state directly into shader. */ 513 fs->state = *shader; 514 fs->state.tokens = tgsi_dup_tokens(shader->tokens); 515 516 tgsi_scan_shader(shader->tokens, &fs->info); 517 r300_shader_read_fs_inputs(&fs->info, &fs->inputs); 518 519 return (void*)fs; 520} 521 522/* Bind fragment shader state. */ 523static void r300_bind_fs_state(struct pipe_context* pipe, void* shader) 524{ 525 struct r300_context* r300 = r300_context(pipe); 526 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 527 528 if (fs == NULL) { 529 r300->fs = NULL; 530 return; 531 } 532 533 r300->fs = fs; 534 r300_pick_fragment_shader(r300); 535 536 if (r300->vs && r300_vertex_shader_setup_wpos(r300)) { 537 r300->dirty_state |= R300_NEW_VERTEX_FORMAT; 538 } 539 540 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | R300_NEW_FRAGMENT_SHADER_CONSTANTS; 541} 542 543/* Delete fragment shader state. */ 544static void r300_delete_fs_state(struct pipe_context* pipe, void* shader) 545{ 546 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 547 struct r300_fragment_shader_code *tmp, *ptr = fs->first; 548 549 while (ptr) { 550 tmp = ptr; 551 ptr = ptr->next; 552 rc_constants_destroy(&tmp->code.constants); 553 FREE(tmp); 554 } 555 FREE((void*)fs->state.tokens); 556 FREE(shader); 557} 558 559static void r300_set_polygon_stipple(struct pipe_context* pipe, 560 const struct pipe_poly_stipple* state) 561{ 562 /* XXX no idea how to set this up, but not terribly important */ 563} 564 565/* Create a new rasterizer state based on the CSO rasterizer state. 566 * 567 * This is a very large chunk of state, and covers most of the graphics 568 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks. 569 * 570 * In a not entirely unironic sidenote, this state has nearly nothing to do 571 * with the actual block on the Radeon called the rasterizer (RS). */ 572static void* r300_create_rs_state(struct pipe_context* pipe, 573 const struct pipe_rasterizer_state* state) 574{ 575 struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state); 576 577 /* Copy rasterizer state for Draw. */ 578 rs->rs = *state; 579 580#ifdef PIPE_ARCH_LITTLE_ENDIAN 581 rs->vap_control_status = R300_VC_NO_SWAP; 582#else 583 rs->vap_control_status = R300_VC_32BIT_SWAP; 584#endif 585 586 /* If bypassing TCL, or if no TCL engine is present, turn off the HW TCL. 587 * Else, enable HW TCL and force Draw's TCL off. */ 588 if (state->bypass_vs_clip_and_viewport || 589 !r300_screen(pipe->screen)->caps->has_tcl) { 590 rs->vap_control_status |= R300_VAP_TCL_BYPASS; 591 } 592 593 rs->point_size = pack_float_16_6x(state->point_size) | 594 (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT); 595 596 rs->point_minmax = 597 ((int)(state->point_size_min * 6.0) << 598 R300_GA_POINT_MINMAX_MIN_SHIFT) | 599 ((int)(state->point_size_max * 6.0) << 600 R300_GA_POINT_MINMAX_MAX_SHIFT); 601 602 rs->line_control = pack_float_16_6x(state->line_width) | 603 R300_GA_LINE_CNTL_END_TYPE_COMP; 604 605 /* XXX I think there is something wrong with the polygon mode, 606 * XXX re-test when r300g is in a better shape */ 607 608 /* Enable polygon mode */ 609 if (state->fill_cw != PIPE_POLYGON_MODE_FILL || 610 state->fill_ccw != PIPE_POLYGON_MODE_FILL) { 611 rs->polygon_mode = R300_GA_POLY_MODE_DUAL; 612 } 613 614 /* Radeons don't think in "CW/CCW", they think in "front/back". */ 615 if (state->front_winding == PIPE_WINDING_CW) { 616 rs->cull_mode = R300_FRONT_FACE_CW; 617 618 /* Polygon offset */ 619 if (state->offset_cw) { 620 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 621 } 622 if (state->offset_ccw) { 623 rs->polygon_offset_enable |= R300_BACK_ENABLE; 624 } 625 626 /* Polygon mode */ 627 if (rs->polygon_mode) { 628 rs->polygon_mode |= 629 r300_translate_polygon_mode_front(state->fill_cw); 630 rs->polygon_mode |= 631 r300_translate_polygon_mode_back(state->fill_ccw); 632 } 633 } else { 634 rs->cull_mode = R300_FRONT_FACE_CCW; 635 636 /* Polygon offset */ 637 if (state->offset_ccw) { 638 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 639 } 640 if (state->offset_cw) { 641 rs->polygon_offset_enable |= R300_BACK_ENABLE; 642 } 643 644 /* Polygon mode */ 645 if (rs->polygon_mode) { 646 rs->polygon_mode |= 647 r300_translate_polygon_mode_front(state->fill_ccw); 648 rs->polygon_mode |= 649 r300_translate_polygon_mode_back(state->fill_cw); 650 } 651 } 652 if (state->front_winding & state->cull_mode) { 653 rs->cull_mode |= R300_CULL_FRONT; 654 } 655 if (~(state->front_winding) & state->cull_mode) { 656 rs->cull_mode |= R300_CULL_BACK; 657 } 658 659 if (rs->polygon_offset_enable) { 660 rs->depth_offset_front = rs->depth_offset_back = 661 fui(state->offset_units); 662 rs->depth_scale_front = rs->depth_scale_back = 663 fui(state->offset_scale); 664 } 665 666 if (state->line_stipple_enable) { 667 rs->line_stipple_config = 668 R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE | 669 (fui((float)state->line_stipple_factor) & 670 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK); 671 /* XXX this might need to be scaled up */ 672 rs->line_stipple_value = state->line_stipple_pattern; 673 } 674 675 if (state->flatshade) { 676 rs->color_control = R300_SHADE_MODEL_FLAT; 677 } else { 678 rs->color_control = R300_SHADE_MODEL_SMOOTH; 679 } 680 681 return (void*)rs; 682} 683 684/* Bind rasterizer state. */ 685static void r300_bind_rs_state(struct pipe_context* pipe, void* state) 686{ 687 struct r300_context* r300 = r300_context(pipe); 688 struct r300_rs_state* rs = (struct r300_rs_state*)state; 689 690 if (r300->draw) { 691 draw_flush(r300->draw); 692 draw_set_rasterizer_state(r300->draw, &rs->rs); 693 } 694 695 if (rs) { 696 r300->tcl_bypass = rs->rs.bypass_vs_clip_and_viewport; 697 } else { 698 r300->tcl_bypass = FALSE; 699 } 700 701 r300->rs_state.state = rs; 702 r300->rs_state.dirty = TRUE; 703 /* XXX Why is this still needed, dammit!? */ 704 r300->scissor_state.dirty = TRUE; 705 r300->viewport_state.dirty = TRUE; 706 707 /* XXX Clean these up when we move to atom emits */ 708 r300->dirty_state |= R300_NEW_RS_BLOCK; 709 if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { 710 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 711 } 712} 713 714/* Free rasterizer state. */ 715static void r300_delete_rs_state(struct pipe_context* pipe, void* state) 716{ 717 FREE(state); 718} 719 720static void* 721 r300_create_sampler_state(struct pipe_context* pipe, 722 const struct pipe_sampler_state* state) 723{ 724 struct r300_context* r300 = r300_context(pipe); 725 struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state); 726 int lod_bias; 727 union util_color uc; 728 729 sampler->state = *state; 730 731 sampler->filter0 |= 732 (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) | 733 (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) | 734 (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT); 735 736 sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter, 737 state->mag_img_filter, 738 state->min_mip_filter, 739 state->max_anisotropy > 1.0); 740 741 /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */ 742 /* We must pass these to the emit function to clamp them properly. */ 743 sampler->min_lod = MAX2((unsigned)state->min_lod, 0); 744 sampler->max_lod = MAX2((unsigned)ceilf(state->max_lod), 0); 745 746 lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1); 747 748 sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT; 749 750 sampler->filter1 |= r300_anisotropy(state->max_anisotropy); 751 752 util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); 753 sampler->border_color = uc.ui; 754 755 /* R500-specific fixups and optimizations */ 756 if (r300_screen(r300->context.screen)->caps->is_r500) { 757 sampler->filter1 |= R500_BORDER_FIX; 758 } 759 760 return (void*)sampler; 761} 762 763static void r300_bind_sampler_states(struct pipe_context* pipe, 764 unsigned count, 765 void** states) 766{ 767 struct r300_context* r300 = r300_context(pipe); 768 int i; 769 770 if (count > 8) { 771 return; 772 } 773 774 for (i = 0; i < count; i++) { 775 if (r300->sampler_states[i] != states[i]) { 776 r300->sampler_states[i] = (struct r300_sampler_state*)states[i]; 777 r300->dirty_state |= (R300_NEW_SAMPLER << i); 778 } 779 } 780 781 r300->sampler_count = count; 782 783 /* Pick a fragment shader based on the texture compare state. */ 784 if (r300->fs && (r300->dirty_state & R300_ANY_NEW_SAMPLERS)) { 785 if (r300_pick_fragment_shader(r300)) { 786 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | 787 R300_NEW_FRAGMENT_SHADER_CONSTANTS; 788 } 789 } 790} 791 792static void r300_lacks_vertex_textures(struct pipe_context* pipe, 793 unsigned count, 794 void** states) 795{ 796} 797 798static void r300_delete_sampler_state(struct pipe_context* pipe, void* state) 799{ 800 FREE(state); 801} 802 803static void r300_set_sampler_textures(struct pipe_context* pipe, 804 unsigned count, 805 struct pipe_texture** texture) 806{ 807 struct r300_context* r300 = r300_context(pipe); 808 boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500; 809 int i; 810 811 /* XXX magic num */ 812 if (count > 8) { 813 return; 814 } 815 816 for (i = 0; i < count; i++) { 817 if (r300->textures[i] != (struct r300_texture*)texture[i]) { 818 pipe_texture_reference((struct pipe_texture**)&r300->textures[i], 819 texture[i]); 820 r300->dirty_state |= (R300_NEW_TEXTURE << i); 821 822 /* R300-specific - set the texrect factor in a fragment shader */ 823 if (!is_r500 && r300->textures[i]->is_npot) { 824 /* XXX It would be nice to re-emit just 1 constant, 825 * XXX not all of them */ 826 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 827 } 828 } 829 } 830 831 for (i = count; i < 8; i++) { 832 if (r300->textures[i]) { 833 pipe_texture_reference((struct pipe_texture**)&r300->textures[i], 834 NULL); 835 r300->dirty_state |= (R300_NEW_TEXTURE << i); 836 } 837 } 838 839 r300->texture_count = count; 840} 841 842static void r300_set_scissor_state(struct pipe_context* pipe, 843 const struct pipe_scissor_state* state) 844{ 845 struct r300_context* r300 = r300_context(pipe); 846 847 memcpy(r300->scissor_state.state, state, 848 sizeof(struct pipe_scissor_state)); 849 850 r300->scissor_state.dirty = TRUE; 851} 852 853static void r300_set_viewport_state(struct pipe_context* pipe, 854 const struct pipe_viewport_state* state) 855{ 856 struct r300_context* r300 = r300_context(pipe); 857 struct r300_viewport_state* viewport = 858 (struct r300_viewport_state*)r300->viewport_state.state; 859 860 /* Do the transform in HW. */ 861 viewport->vte_control = R300_VTX_W0_FMT; 862 863 if (state->scale[0] != 1.0f) { 864 viewport->xscale = state->scale[0]; 865 viewport->vte_control |= R300_VPORT_X_SCALE_ENA; 866 } 867 if (state->scale[1] != 1.0f) { 868 viewport->yscale = state->scale[1]; 869 viewport->vte_control |= R300_VPORT_Y_SCALE_ENA; 870 } 871 if (state->scale[2] != 1.0f) { 872 viewport->zscale = state->scale[2]; 873 viewport->vte_control |= R300_VPORT_Z_SCALE_ENA; 874 } 875 if (state->translate[0] != 0.0f) { 876 viewport->xoffset = state->translate[0]; 877 viewport->vte_control |= R300_VPORT_X_OFFSET_ENA; 878 } 879 if (state->translate[1] != 0.0f) { 880 viewport->yoffset = state->translate[1]; 881 viewport->vte_control |= R300_VPORT_Y_OFFSET_ENA; 882 } 883 if (state->translate[2] != 0.0f) { 884 viewport->zoffset = state->translate[2]; 885 viewport->vte_control |= R300_VPORT_Z_OFFSET_ENA; 886 } 887 888 r300->viewport_state.dirty = TRUE; 889 if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { 890 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 891 } 892} 893 894static void r300_set_vertex_buffers(struct pipe_context* pipe, 895 unsigned count, 896 const struct pipe_vertex_buffer* buffers) 897{ 898 struct r300_context* r300 = r300_context(pipe); 899 900 memcpy(r300->vertex_buffer, buffers, 901 sizeof(struct pipe_vertex_buffer) * count); 902 r300->vertex_buffer_count = count; 903 904 if (r300->draw) { 905 draw_flush(r300->draw); 906 draw_set_vertex_buffers(r300->draw, count, buffers); 907 } 908 909 r300->dirty_state |= R300_NEW_VERTEX_FORMAT; 910} 911 912static void r300_set_vertex_elements(struct pipe_context* pipe, 913 unsigned count, 914 const struct pipe_vertex_element* elements) 915{ 916 struct r300_context* r300 = r300_context(pipe); 917 918 memcpy(r300->vertex_element, 919 elements, 920 sizeof(struct pipe_vertex_element) * count); 921 r300->vertex_element_count = count; 922 923 if (r300->draw) { 924 draw_flush(r300->draw); 925 draw_set_vertex_elements(r300->draw, count, elements); 926 } 927} 928 929static void* r300_create_vs_state(struct pipe_context* pipe, 930 const struct pipe_shader_state* shader) 931{ 932 struct r300_context* r300 = r300_context(pipe); 933 934 if (r300_screen(pipe->screen)->caps->has_tcl) { 935 struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader); 936 /* Copy state directly into shader. */ 937 vs->state = *shader; 938 vs->state.tokens = tgsi_dup_tokens(shader->tokens); 939 940 tgsi_scan_shader(shader->tokens, &vs->info); 941 942 return (void*)vs; 943 } else { 944 return draw_create_vertex_shader(r300->draw, shader); 945 } 946} 947 948static void r300_bind_vs_state(struct pipe_context* pipe, void* shader) 949{ 950 struct r300_context* r300 = r300_context(pipe); 951 952 if (r300_screen(pipe->screen)->caps->has_tcl) { 953 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 954 955 if (vs == NULL) { 956 r300->vs = NULL; 957 return; 958 } else if (!vs->translated) { 959 r300_translate_vertex_shader(r300, vs); 960 } 961 962 r300->vs = vs; 963 if (r300->fs) { 964 r300_vertex_shader_setup_wpos(r300); 965 } 966 967 r300->dirty_state |= 968 R300_NEW_VERTEX_SHADER | R300_NEW_VERTEX_SHADER_CONSTANTS | 969 R300_NEW_VERTEX_FORMAT; 970 } else { 971 draw_flush(r300->draw); 972 draw_bind_vertex_shader(r300->draw, 973 (struct draw_vertex_shader*)shader); 974 } 975} 976 977static void r300_delete_vs_state(struct pipe_context* pipe, void* shader) 978{ 979 struct r300_context* r300 = r300_context(pipe); 980 981 if (r300_screen(pipe->screen)->caps->has_tcl) { 982 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 983 984 rc_constants_destroy(&vs->code.constants); 985 FREE((void*)vs->state.tokens); 986 FREE(shader); 987 } else { 988 draw_delete_vertex_shader(r300->draw, 989 (struct draw_vertex_shader*)shader); 990 } 991} 992 993static void r300_set_constant_buffer(struct pipe_context *pipe, 994 uint shader, uint index, 995 const struct pipe_constant_buffer *buf) 996{ 997 struct r300_context* r300 = r300_context(pipe); 998 void *mapped; 999 1000 if (buf == NULL || buf->buffer->size == 0 || 1001 (mapped = pipe_buffer_map(pipe->screen, buf->buffer, PIPE_BUFFER_USAGE_CPU_READ)) == NULL) 1002 { 1003 r300->shader_constants[shader].count = 0; 1004 return; 1005 } 1006 1007 assert((buf->buffer->size % 4 * sizeof(float)) == 0); 1008 memcpy(r300->shader_constants[shader].constants, mapped, buf->buffer->size); 1009 r300->shader_constants[shader].count = buf->buffer->size / (4 * sizeof(float)); 1010 pipe_buffer_unmap(pipe->screen, buf->buffer); 1011 1012 if (shader == PIPE_SHADER_VERTEX) 1013 r300->dirty_state |= R300_NEW_VERTEX_SHADER_CONSTANTS; 1014 else if (shader == PIPE_SHADER_FRAGMENT) 1015 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 1016} 1017 1018void r300_init_state_functions(struct r300_context* r300) 1019{ 1020 r300->context.create_blend_state = r300_create_blend_state; 1021 r300->context.bind_blend_state = r300_bind_blend_state; 1022 r300->context.delete_blend_state = r300_delete_blend_state; 1023 1024 r300->context.set_blend_color = r300_set_blend_color; 1025 1026 r300->context.set_clip_state = r300_set_clip_state; 1027 1028 r300->context.set_constant_buffer = r300_set_constant_buffer; 1029 1030 r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state; 1031 r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state; 1032 r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state; 1033 1034 r300->context.set_framebuffer_state = r300_set_framebuffer_state; 1035 1036 r300->context.create_fs_state = r300_create_fs_state; 1037 r300->context.bind_fs_state = r300_bind_fs_state; 1038 r300->context.delete_fs_state = r300_delete_fs_state; 1039 1040 r300->context.set_polygon_stipple = r300_set_polygon_stipple; 1041 1042 r300->context.create_rasterizer_state = r300_create_rs_state; 1043 r300->context.bind_rasterizer_state = r300_bind_rs_state; 1044 r300->context.delete_rasterizer_state = r300_delete_rs_state; 1045 1046 r300->context.create_sampler_state = r300_create_sampler_state; 1047 r300->context.bind_fragment_sampler_states = r300_bind_sampler_states; 1048 r300->context.bind_vertex_sampler_states = r300_lacks_vertex_textures; 1049 r300->context.delete_sampler_state = r300_delete_sampler_state; 1050 1051 r300->context.set_fragment_sampler_textures = r300_set_sampler_textures; 1052 1053 r300->context.set_scissor_state = r300_set_scissor_state; 1054 1055 r300->context.set_viewport_state = r300_set_viewport_state; 1056 1057 r300->context.set_vertex_buffers = r300_set_vertex_buffers; 1058 r300->context.set_vertex_elements = r300_set_vertex_elements; 1059 1060 r300->context.create_vs_state = r300_create_vs_state; 1061 r300->context.bind_vs_state = r300_bind_vs_state; 1062 r300->context.delete_vs_state = r300_delete_vs_state; 1063} 1064