r300_state.c revision 6b9b3213c545644d155be54fd633e8b630a22465
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 blend->blend_control |= R300_READ_ENABLE; 203 204 /* Optimization: discard pixels which don't change the colorbuffer. 205 * 206 * The code below is non-trivial and some math is involved. 207 * 208 * Discarding pixels must be disabled when FP16 AA is enabled. 209 * This is a hardware bug. Also, this implementation wouldn't work 210 * with FP blending enabled and equation clamping disabled. 211 * 212 * Equations other than ADD are rarely used and therefore won't be 213 * optimized. */ 214 if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) && 215 (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) { 216 /* ADD: X+Y 217 * REVERSE_SUBTRACT: Y-X 218 * 219 * The idea is: 220 * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1, 221 * then CB will not be changed. 222 * 223 * Given the srcFactor and dstFactor variables, we can derive 224 * what src and dst should be equal to and discard appropriate 225 * pixels. 226 */ 227 if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) { 228 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0; 229 } else if (blend_discard_if_src_alpha_1(srcRGB, srcA, 230 dstRGB, dstA)) { 231 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1; 232 } else if (blend_discard_if_src_color_0(srcRGB, srcA, 233 dstRGB, dstA)) { 234 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0; 235 } else if (blend_discard_if_src_color_1(srcRGB, srcA, 236 dstRGB, dstA)) { 237 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1; 238 } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA, 239 dstRGB, dstA)) { 240 blend->blend_control |= 241 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0; 242 } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA, 243 dstRGB, dstA)) { 244 blend->blend_control |= 245 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1; 246 } 247 } 248 249 /* XXX implement the optimization with SRC_ALPHA_?_NO_READ */ 250 251 /* separate alpha */ 252 if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { 253 blend->blend_control |= R300_SEPARATE_ALPHA_ENABLE; 254 blend->alpha_blend_control = 255 r300_translate_blend_function(eqA) | 256 (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) | 257 (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT); 258 } 259 } 260 261 /* PIPE_LOGICOP_* don't need to be translated, fortunately. */ 262 if (state->logicop_enable) { 263 blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE | 264 (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT; 265 } 266 267 /* Color Channel Mask */ 268 if (state->colormask & PIPE_MASK_R) { 269 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_RED_MASK0; 270 } 271 if (state->colormask & PIPE_MASK_G) { 272 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_GREEN_MASK0; 273 } 274 if (state->colormask & PIPE_MASK_B) { 275 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_BLUE_MASK0; 276 } 277 if (state->colormask & PIPE_MASK_A) { 278 blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_ALPHA_MASK0; 279 } 280 281 if (state->dither) { 282 blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT | 283 R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; 284 } 285 286 return (void*)blend; 287} 288 289/* Bind blend state. */ 290static void r300_bind_blend_state(struct pipe_context* pipe, 291 void* state) 292{ 293 struct r300_context* r300 = r300_context(pipe); 294 295 r300->blend_state = (struct r300_blend_state*)state; 296 r300->dirty_state |= R300_NEW_BLEND; 297} 298 299/* Free blend state. */ 300static void r300_delete_blend_state(struct pipe_context* pipe, 301 void* state) 302{ 303 FREE(state); 304} 305 306/* Convert float to 10bit integer */ 307static unsigned float_to_fixed10(float f) 308{ 309 return CLAMP((unsigned)(f * 1023.9f), 0, 1023); 310} 311 312/* Set blend color. 313 * Setup both R300 and R500 registers, figure out later which one to write. */ 314static void r300_set_blend_color(struct pipe_context* pipe, 315 const struct pipe_blend_color* color) 316{ 317 struct r300_context* r300 = r300_context(pipe); 318 union util_color uc; 319 320 util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); 321 r300->blend_color_state->blend_color = uc.ui; 322 323 /* XXX if FP16 blending is enabled, we should use the FP16 format */ 324 r300->blend_color_state->blend_color_red_alpha = 325 float_to_fixed10(color->color[0]) | 326 (float_to_fixed10(color->color[3]) << 16); 327 r300->blend_color_state->blend_color_green_blue = 328 float_to_fixed10(color->color[2]) | 329 (float_to_fixed10(color->color[1]) << 16); 330 331 r300->dirty_state |= R300_NEW_BLEND_COLOR; 332} 333 334static void r300_set_clip_state(struct pipe_context* pipe, 335 const struct pipe_clip_state* state) 336{ 337 struct r300_context* r300 = r300_context(pipe); 338 339 if (r300_screen(pipe->screen)->caps->has_tcl) { 340 r300->clip_state = *state; 341 r300->dirty_state |= R300_NEW_CLIP; 342 } else { 343 draw_flush(r300->draw); 344 draw_set_clip_state(r300->draw, state); 345 } 346} 347 348/* Create a new depth, stencil, and alpha state based on the CSO dsa state. 349 * 350 * This contains the depth buffer, stencil buffer, alpha test, and such. 351 * On the Radeon, depth and stencil buffer setup are intertwined, which is 352 * the reason for some of the strange-looking assignments across registers. */ 353static void* 354 r300_create_dsa_state(struct pipe_context* pipe, 355 const struct pipe_depth_stencil_alpha_state* state) 356{ 357 struct r300_capabilities *caps = 358 r300_screen(r300_context(pipe)->context.screen)->caps; 359 struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); 360 361 /* Depth test setup. */ 362 if (state->depth.enabled) { 363 dsa->z_buffer_control |= R300_Z_ENABLE; 364 365 if (state->depth.writemask) { 366 dsa->z_buffer_control |= R300_Z_WRITE_ENABLE; 367 } 368 369 dsa->z_stencil_control |= 370 (r300_translate_depth_stencil_function(state->depth.func) << 371 R300_Z_FUNC_SHIFT); 372 } 373 374 /* Stencil buffer setup. */ 375 if (state->stencil[0].enabled) { 376 dsa->z_buffer_control |= R300_STENCIL_ENABLE; 377 dsa->z_stencil_control |= 378 (r300_translate_depth_stencil_function(state->stencil[0].func) << 379 R300_S_FRONT_FUNC_SHIFT) | 380 (r300_translate_stencil_op(state->stencil[0].fail_op) << 381 R300_S_FRONT_SFAIL_OP_SHIFT) | 382 (r300_translate_stencil_op(state->stencil[0].zpass_op) << 383 R300_S_FRONT_ZPASS_OP_SHIFT) | 384 (r300_translate_stencil_op(state->stencil[0].zfail_op) << 385 R300_S_FRONT_ZFAIL_OP_SHIFT); 386 387 dsa->stencil_ref_mask = (state->stencil[0].ref_value) | 388 (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) | 389 (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT); 390 391 if (state->stencil[1].enabled) { 392 dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK; 393 dsa->z_stencil_control |= 394 (r300_translate_depth_stencil_function(state->stencil[1].func) << 395 R300_S_BACK_FUNC_SHIFT) | 396 (r300_translate_stencil_op(state->stencil[1].fail_op) << 397 R300_S_BACK_SFAIL_OP_SHIFT) | 398 (r300_translate_stencil_op(state->stencil[1].zpass_op) << 399 R300_S_BACK_ZPASS_OP_SHIFT) | 400 (r300_translate_stencil_op(state->stencil[1].zfail_op) << 401 R300_S_BACK_ZFAIL_OP_SHIFT); 402 403 /* XXX it seems r3xx doesn't support STENCILREFMASK_BF */ 404 if (caps->is_r500) 405 { 406 dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; 407 dsa->stencil_ref_bf = (state->stencil[1].ref_value) | 408 (state->stencil[1].valuemask << 409 R300_STENCILMASK_SHIFT) | 410 (state->stencil[1].writemask << 411 R300_STENCILWRITEMASK_SHIFT); 412 } 413 } 414 } 415 416 /* Alpha test setup. */ 417 if (state->alpha.enabled) { 418 dsa->alpha_function = 419 r300_translate_alpha_function(state->alpha.func) | 420 R300_FG_ALPHA_FUNC_ENABLE; 421 422 /* XXX figure out why emitting 10bit alpha ref causes CS to dump */ 423 /* always use 8bit alpha ref */ 424 dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); 425 426 if (caps->is_r500) 427 dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; 428 } 429 430 return (void*)dsa; 431} 432 433/* Bind DSA state. */ 434static void r300_bind_dsa_state(struct pipe_context* pipe, 435 void* state) 436{ 437 struct r300_context* r300 = r300_context(pipe); 438 439 r300->dsa_state = (struct r300_dsa_state*)state; 440 r300->dirty_state |= R300_NEW_DSA; 441} 442 443/* Free DSA state. */ 444static void r300_delete_dsa_state(struct pipe_context* pipe, 445 void* state) 446{ 447 FREE(state); 448} 449 450static void r300_set_scissor_regs(const struct pipe_scissor_state* state, 451 struct r300_scissor_regs *scissor, 452 boolean is_r500) 453{ 454 if (is_r500) { 455 scissor->top_left = 456 (state->minx << R300_SCISSORS_X_SHIFT) | 457 (state->miny << R300_SCISSORS_Y_SHIFT); 458 scissor->bottom_right = 459 ((state->maxx - 1) << R300_SCISSORS_X_SHIFT) | 460 ((state->maxy - 1) << R300_SCISSORS_Y_SHIFT); 461 } else { 462 /* Offset of 1440 in non-R500 chipsets. */ 463 scissor->top_left = 464 ((state->minx + 1440) << R300_SCISSORS_X_SHIFT) | 465 ((state->miny + 1440) << R300_SCISSORS_Y_SHIFT); 466 scissor->bottom_right = 467 (((state->maxx - 1) + 1440) << R300_SCISSORS_X_SHIFT) | 468 (((state->maxy - 1) + 1440) << R300_SCISSORS_Y_SHIFT); 469 } 470 471 scissor->empty_area = state->minx >= state->maxx || 472 state->miny >= state->maxy; 473} 474 475static void 476 r300_set_framebuffer_state(struct pipe_context* pipe, 477 const struct pipe_framebuffer_state* state) 478{ 479 struct r300_context* r300 = r300_context(pipe); 480 struct pipe_scissor_state scissor; 481 482 if (r300->draw) { 483 draw_flush(r300->draw); 484 } 485 486 r300->framebuffer_state = *state; 487 488 scissor.minx = scissor.miny = 0; 489 scissor.maxx = state->width; 490 scissor.maxy = state->height; 491 r300_set_scissor_regs(&scissor, &r300->scissor_state->framebuffer, 492 r300_screen(r300->context.screen)->caps->is_r500); 493 494 /* Don't rely on the order of states being set for the first time. */ 495 if (!r300->rs_state || !r300->rs_state->rs.scissor) { 496 r300->dirty_state |= R300_NEW_SCISSOR; 497 } 498 r300->dirty_state |= R300_NEW_FRAMEBUFFERS; 499 r300->dirty_state |= R300_NEW_BLEND; 500} 501 502/* Create fragment shader state. */ 503static void* r300_create_fs_state(struct pipe_context* pipe, 504 const struct pipe_shader_state* shader) 505{ 506 struct r300_fragment_shader* fs = NULL; 507 508 fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader); 509 510 /* Copy state directly into shader. */ 511 fs->state = *shader; 512 fs->state.tokens = tgsi_dup_tokens(shader->tokens); 513 514 tgsi_scan_shader(shader->tokens, &fs->info); 515 r300_shader_read_fs_inputs(&fs->info, &fs->inputs); 516 517 return (void*)fs; 518} 519 520/* Bind fragment shader state. */ 521static void r300_bind_fs_state(struct pipe_context* pipe, void* shader) 522{ 523 struct r300_context* r300 = r300_context(pipe); 524 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 525 526 if (fs == NULL) { 527 r300->fs = NULL; 528 return; 529 } 530 531 r300->fs = fs; 532 r300_pick_fragment_shader(r300); 533 534 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | R300_NEW_FRAGMENT_SHADER_CONSTANTS; 535} 536 537/* Delete fragment shader state. */ 538static void r300_delete_fs_state(struct pipe_context* pipe, void* shader) 539{ 540 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 541 struct r300_fragment_shader_code *tmp, *ptr = fs->first; 542 543 while (ptr) { 544 tmp = ptr; 545 ptr = ptr->next; 546 rc_constants_destroy(&tmp->code.constants); 547 FREE(tmp); 548 } 549 FREE((void*)fs->state.tokens); 550 FREE(shader); 551} 552 553static void r300_set_polygon_stipple(struct pipe_context* pipe, 554 const struct pipe_poly_stipple* state) 555{ 556 /* XXX no idea how to set this up, but not terribly important */ 557} 558 559/* Create a new rasterizer state based on the CSO rasterizer state. 560 * 561 * This is a very large chunk of state, and covers most of the graphics 562 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks. 563 * 564 * In a not entirely unironic sidenote, this state has nearly nothing to do 565 * with the actual block on the Radeon called the rasterizer (RS). */ 566static void* r300_create_rs_state(struct pipe_context* pipe, 567 const struct pipe_rasterizer_state* state) 568{ 569 struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state); 570 571 /* Copy rasterizer state for Draw. */ 572 rs->rs = *state; 573 574 rs->enable_vte = !state->bypass_vs_clip_and_viewport; 575 576#ifdef PIPE_ARCH_LITTLE_ENDIAN 577 rs->vap_control_status = R300_VC_NO_SWAP; 578#else 579 rs->vap_control_status = R300_VC_32BIT_SWAP; 580#endif 581 582 /* If bypassing TCL, or if no TCL engine is present, turn off the HW TCL. 583 * Else, enable HW TCL and force Draw's TCL off. */ 584 if (state->bypass_vs_clip_and_viewport || 585 !r300_screen(pipe->screen)->caps->has_tcl) { 586 rs->vap_control_status |= R300_VAP_TCL_BYPASS; 587 } 588 589 rs->point_size = pack_float_16_6x(state->point_size) | 590 (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT); 591 592 rs->point_minmax = 593 ((int)(state->point_size_min * 6.0) << 594 R300_GA_POINT_MINMAX_MIN_SHIFT) | 595 ((int)(state->point_size_max * 6.0) << 596 R300_GA_POINT_MINMAX_MAX_SHIFT); 597 598 rs->line_control = pack_float_16_6x(state->line_width) | 599 R300_GA_LINE_CNTL_END_TYPE_COMP; 600 601 /* XXX I think there is something wrong with the polygon mode, 602 * XXX re-test when r300g is in a better shape */ 603 604 /* Enable polygon mode */ 605 if (state->fill_cw != PIPE_POLYGON_MODE_FILL || 606 state->fill_ccw != PIPE_POLYGON_MODE_FILL) { 607 rs->polygon_mode = R300_GA_POLY_MODE_DUAL; 608 } 609 610 /* Radeons don't think in "CW/CCW", they think in "front/back". */ 611 if (state->front_winding == PIPE_WINDING_CW) { 612 rs->cull_mode = R300_FRONT_FACE_CW; 613 614 /* Polygon offset */ 615 if (state->offset_cw) { 616 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 617 } 618 if (state->offset_ccw) { 619 rs->polygon_offset_enable |= R300_BACK_ENABLE; 620 } 621 622 /* Polygon mode */ 623 if (rs->polygon_mode) { 624 rs->polygon_mode |= 625 r300_translate_polygon_mode_front(state->fill_cw); 626 rs->polygon_mode |= 627 r300_translate_polygon_mode_back(state->fill_ccw); 628 } 629 } else { 630 rs->cull_mode = R300_FRONT_FACE_CCW; 631 632 /* Polygon offset */ 633 if (state->offset_ccw) { 634 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 635 } 636 if (state->offset_cw) { 637 rs->polygon_offset_enable |= R300_BACK_ENABLE; 638 } 639 640 /* Polygon mode */ 641 if (rs->polygon_mode) { 642 rs->polygon_mode |= 643 r300_translate_polygon_mode_front(state->fill_ccw); 644 rs->polygon_mode |= 645 r300_translate_polygon_mode_back(state->fill_cw); 646 } 647 } 648 if (state->front_winding & state->cull_mode) { 649 rs->cull_mode |= R300_CULL_FRONT; 650 } 651 if (~(state->front_winding) & state->cull_mode) { 652 rs->cull_mode |= R300_CULL_BACK; 653 } 654 655 if (rs->polygon_offset_enable) { 656 rs->depth_offset_front = rs->depth_offset_back = 657 fui(state->offset_units); 658 rs->depth_scale_front = rs->depth_scale_back = 659 fui(state->offset_scale); 660 } 661 662 if (state->line_stipple_enable) { 663 rs->line_stipple_config = 664 R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE | 665 (fui((float)state->line_stipple_factor) & 666 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK); 667 /* XXX this might need to be scaled up */ 668 rs->line_stipple_value = state->line_stipple_pattern; 669 } 670 671 if (state->flatshade) { 672 rs->color_control = R300_SHADE_MODEL_FLAT; 673 } else { 674 rs->color_control = R300_SHADE_MODEL_SMOOTH; 675 } 676 677 return (void*)rs; 678} 679 680/* Bind rasterizer state. */ 681static void r300_bind_rs_state(struct pipe_context* pipe, void* state) 682{ 683 struct r300_context* r300 = r300_context(pipe); 684 struct r300_rs_state* rs = (struct r300_rs_state*)state; 685 686 if (r300->draw) { 687 draw_flush(r300->draw); 688 draw_set_rasterizer_state(r300->draw, &rs->rs); 689 } 690 691 r300->rs_state = rs; 692 /* XXX Clean these up when we move to atom emits */ 693 r300->dirty_state |= R300_NEW_RASTERIZER; 694 r300->dirty_state |= R300_NEW_RS_BLOCK; 695 r300->dirty_state |= R300_NEW_SCISSOR; 696 r300->dirty_state |= R300_NEW_VIEWPORT; 697} 698 699/* Free rasterizer state. */ 700static void r300_delete_rs_state(struct pipe_context* pipe, void* state) 701{ 702 FREE(state); 703} 704 705static void* 706 r300_create_sampler_state(struct pipe_context* pipe, 707 const struct pipe_sampler_state* state) 708{ 709 struct r300_context* r300 = r300_context(pipe); 710 struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state); 711 int lod_bias; 712 union util_color uc; 713 714 sampler->state = *state; 715 716 sampler->filter0 |= 717 (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) | 718 (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) | 719 (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT); 720 721 sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter, 722 state->mag_img_filter, 723 state->min_mip_filter, 724 state->max_anisotropy > 1.0); 725 726 /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */ 727 /* We must pass these to the emit function to clamp them properly. */ 728 sampler->min_lod = MAX2((unsigned)state->min_lod, 0); 729 sampler->max_lod = MAX2((unsigned)ceilf(state->max_lod), 0); 730 731 lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1); 732 733 sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT; 734 735 sampler->filter1 |= r300_anisotropy(state->max_anisotropy); 736 737 util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); 738 sampler->border_color = uc.ui; 739 740 /* R500-specific fixups and optimizations */ 741 if (r300_screen(r300->context.screen)->caps->is_r500) { 742 sampler->filter1 |= R500_BORDER_FIX; 743 } 744 745 return (void*)sampler; 746} 747 748static void r300_bind_sampler_states(struct pipe_context* pipe, 749 unsigned count, 750 void** states) 751{ 752 struct r300_context* r300 = r300_context(pipe); 753 int i; 754 755 if (count > 8) { 756 return; 757 } 758 759 for (i = 0; i < count; i++) { 760 if (r300->sampler_states[i] != states[i]) { 761 r300->sampler_states[i] = (struct r300_sampler_state*)states[i]; 762 r300->dirty_state |= (R300_NEW_SAMPLER << i); 763 } 764 } 765 766 r300->sampler_count = count; 767 768 /* Pick a fragment shader based on the texture compare state. */ 769 if (r300->fs && (r300->dirty_state & R300_ANY_NEW_SAMPLERS)) { 770 if (r300_pick_fragment_shader(r300)) { 771 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | 772 R300_NEW_FRAGMENT_SHADER_CONSTANTS; 773 } 774 } 775} 776 777static void r300_lacks_vertex_textures(struct pipe_context* pipe, 778 unsigned count, 779 void** states) 780{ 781} 782 783static void r300_delete_sampler_state(struct pipe_context* pipe, void* state) 784{ 785 FREE(state); 786} 787 788static void r300_set_sampler_textures(struct pipe_context* pipe, 789 unsigned count, 790 struct pipe_texture** texture) 791{ 792 struct r300_context* r300 = r300_context(pipe); 793 boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500; 794 int i; 795 796 /* XXX magic num */ 797 if (count > 8) { 798 return; 799 } 800 801 for (i = 0; i < count; i++) { 802 if (r300->textures[i] != (struct r300_texture*)texture[i]) { 803 pipe_texture_reference((struct pipe_texture**)&r300->textures[i], 804 texture[i]); 805 r300->dirty_state |= (R300_NEW_TEXTURE << i); 806 807 /* R300-specific - set the texrect factor in a fragment shader */ 808 if (!is_r500 && r300->textures[i]->is_npot) { 809 /* XXX It would be nice to re-emit just 1 constant, 810 * XXX not all of them */ 811 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 812 } 813 } 814 } 815 816 for (i = count; i < 8; i++) { 817 if (r300->textures[i]) { 818 pipe_texture_reference((struct pipe_texture**)&r300->textures[i], 819 NULL); 820 r300->dirty_state |= (R300_NEW_TEXTURE << i); 821 } 822 } 823 824 r300->texture_count = count; 825} 826 827static void r300_set_scissor_state(struct pipe_context* pipe, 828 const struct pipe_scissor_state* state) 829{ 830 struct r300_context* r300 = r300_context(pipe); 831 832 r300_set_scissor_regs(state, &r300->scissor_state->scissor, 833 r300_screen(r300->context.screen)->caps->is_r500); 834 835 /* Don't rely on the order of states being set for the first time. */ 836 if (!r300->rs_state || r300->rs_state->rs.scissor) { 837 r300->dirty_state |= R300_NEW_SCISSOR; 838 } 839} 840 841static void r300_set_viewport_state(struct pipe_context* pipe, 842 const struct pipe_viewport_state* state) 843{ 844 struct r300_context* r300 = r300_context(pipe); 845 846 /* Do the transform in HW. */ 847 r300->viewport_state->vte_control = R300_VTX_W0_FMT; 848 849 if (state->scale[0] != 1.0f) { 850 r300->viewport_state->xscale = state->scale[0]; 851 r300->viewport_state->vte_control |= R300_VPORT_X_SCALE_ENA; 852 } 853 if (state->scale[1] != 1.0f) { 854 r300->viewport_state->yscale = state->scale[1]; 855 r300->viewport_state->vte_control |= R300_VPORT_Y_SCALE_ENA; 856 } 857 if (state->scale[2] != 1.0f) { 858 r300->viewport_state->zscale = state->scale[2]; 859 r300->viewport_state->vte_control |= R300_VPORT_Z_SCALE_ENA; 860 } 861 if (state->translate[0] != 0.0f) { 862 r300->viewport_state->xoffset = state->translate[0]; 863 r300->viewport_state->vte_control |= R300_VPORT_X_OFFSET_ENA; 864 } 865 if (state->translate[1] != 0.0f) { 866 r300->viewport_state->yoffset = state->translate[1]; 867 r300->viewport_state->vte_control |= R300_VPORT_Y_OFFSET_ENA; 868 } 869 if (state->translate[2] != 0.0f) { 870 r300->viewport_state->zoffset = state->translate[2]; 871 r300->viewport_state->vte_control |= R300_VPORT_Z_OFFSET_ENA; 872 } 873 874 r300->dirty_state |= R300_NEW_VIEWPORT; 875} 876 877static void r300_set_vertex_buffers(struct pipe_context* pipe, 878 unsigned count, 879 const struct pipe_vertex_buffer* buffers) 880{ 881 struct r300_context* r300 = r300_context(pipe); 882 883 memcpy(r300->vertex_buffer, buffers, 884 sizeof(struct pipe_vertex_buffer) * count); 885 r300->vertex_buffer_count = count; 886 887 if (r300->draw) { 888 draw_flush(r300->draw); 889 draw_set_vertex_buffers(r300->draw, count, buffers); 890 } 891 892 r300->dirty_state |= R300_NEW_VERTEX_FORMAT; 893} 894 895static void r300_set_vertex_elements(struct pipe_context* pipe, 896 unsigned count, 897 const struct pipe_vertex_element* elements) 898{ 899 struct r300_context* r300 = r300_context(pipe); 900 901 memcpy(r300->vertex_element, 902 elements, 903 sizeof(struct pipe_vertex_element) * count); 904 r300->vertex_element_count = count; 905 906 if (r300->draw) { 907 draw_flush(r300->draw); 908 draw_set_vertex_elements(r300->draw, count, elements); 909 } 910} 911 912static void* r300_create_vs_state(struct pipe_context* pipe, 913 const struct pipe_shader_state* shader) 914{ 915 struct r300_context* r300 = r300_context(pipe); 916 917 if (r300_screen(pipe->screen)->caps->has_tcl) { 918 struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader); 919 /* Copy state directly into shader. */ 920 vs->state = *shader; 921 vs->state.tokens = tgsi_dup_tokens(shader->tokens); 922 923 tgsi_scan_shader(shader->tokens, &vs->info); 924 925 return (void*)vs; 926 } else { 927 return draw_create_vertex_shader(r300->draw, shader); 928 } 929} 930 931static void r300_bind_vs_state(struct pipe_context* pipe, void* shader) 932{ 933 struct r300_context* r300 = r300_context(pipe); 934 935 if (r300_screen(pipe->screen)->caps->has_tcl) { 936 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 937 938 if (vs == NULL) { 939 r300->vs = NULL; 940 return; 941 } else if (!vs->translated) { 942 r300_translate_vertex_shader(r300, vs); 943 } 944 945 r300->vs = vs; 946 r300->dirty_state |= R300_NEW_VERTEX_SHADER | R300_NEW_VERTEX_SHADER_CONSTANTS; 947 } else { 948 draw_flush(r300->draw); 949 draw_bind_vertex_shader(r300->draw, 950 (struct draw_vertex_shader*)shader); 951 } 952} 953 954static void r300_delete_vs_state(struct pipe_context* pipe, void* shader) 955{ 956 struct r300_context* r300 = r300_context(pipe); 957 958 if (r300_screen(pipe->screen)->caps->has_tcl) { 959 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 960 961 rc_constants_destroy(&vs->code.constants); 962 FREE((void*)vs->state.tokens); 963 FREE(shader); 964 } else { 965 draw_delete_vertex_shader(r300->draw, 966 (struct draw_vertex_shader*)shader); 967 } 968} 969 970static void r300_set_constant_buffer(struct pipe_context *pipe, 971 uint shader, uint index, 972 const struct pipe_constant_buffer *buf) 973{ 974 struct r300_context* r300 = r300_context(pipe); 975 void *mapped; 976 977 if (buf == NULL || buf->buffer->size == 0 || 978 (mapped = pipe_buffer_map(pipe->screen, buf->buffer, PIPE_BUFFER_USAGE_CPU_READ)) == NULL) 979 { 980 r300->shader_constants[shader].count = 0; 981 return; 982 } 983 984 assert((buf->buffer->size % 4 * sizeof(float)) == 0); 985 memcpy(r300->shader_constants[shader].constants, mapped, buf->buffer->size); 986 r300->shader_constants[shader].count = buf->buffer->size / (4 * sizeof(float)); 987 pipe_buffer_unmap(pipe->screen, buf->buffer); 988 989 if (shader == PIPE_SHADER_VERTEX) 990 r300->dirty_state |= R300_NEW_VERTEX_SHADER_CONSTANTS; 991 else if (shader == PIPE_SHADER_FRAGMENT) 992 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 993} 994 995void r300_init_state_functions(struct r300_context* r300) 996{ 997 r300->context.create_blend_state = r300_create_blend_state; 998 r300->context.bind_blend_state = r300_bind_blend_state; 999 r300->context.delete_blend_state = r300_delete_blend_state; 1000 1001 r300->context.set_blend_color = r300_set_blend_color; 1002 1003 r300->context.set_clip_state = r300_set_clip_state; 1004 1005 r300->context.set_constant_buffer = r300_set_constant_buffer; 1006 1007 r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state; 1008 r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state; 1009 r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state; 1010 1011 r300->context.set_framebuffer_state = r300_set_framebuffer_state; 1012 1013 r300->context.create_fs_state = r300_create_fs_state; 1014 r300->context.bind_fs_state = r300_bind_fs_state; 1015 r300->context.delete_fs_state = r300_delete_fs_state; 1016 1017 r300->context.set_polygon_stipple = r300_set_polygon_stipple; 1018 1019 r300->context.create_rasterizer_state = r300_create_rs_state; 1020 r300->context.bind_rasterizer_state = r300_bind_rs_state; 1021 r300->context.delete_rasterizer_state = r300_delete_rs_state; 1022 1023 r300->context.create_sampler_state = r300_create_sampler_state; 1024 r300->context.bind_fragment_sampler_states = r300_bind_sampler_states; 1025 r300->context.bind_vertex_sampler_states = r300_lacks_vertex_textures; 1026 r300->context.delete_sampler_state = r300_delete_sampler_state; 1027 1028 r300->context.set_fragment_sampler_textures = r300_set_sampler_textures; 1029 1030 r300->context.set_scissor_state = r300_set_scissor_state; 1031 1032 r300->context.set_viewport_state = r300_set_viewport_state; 1033 1034 r300->context.set_vertex_buffers = r300_set_vertex_buffers; 1035 r300->context.set_vertex_elements = r300_set_vertex_elements; 1036 1037 r300->context.create_vs_state = r300_create_vs_state; 1038 r300->context.bind_vs_state = r300_bind_vs_state; 1039 r300->context.delete_vs_state = r300_delete_vs_state; 1040} 1041