r300_state.c revision 4ca70c489baed3e23dbf5e5e5794385113e22252
1/* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * Copyright 2009 Marek Olšák <maraeo@gmail.com> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * on the rights to use, copy, modify, merge, publish, distribute, sub 9 * license, and/or sell copies of the Software, and to permit persons to whom 10 * the Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 23 24#include "draw/draw_context.h" 25 26#include "util/u_math.h" 27#include "util/u_memory.h" 28#include "util/u_pack_color.h" 29 30#include "tgsi/tgsi_parse.h" 31 32#include "pipe/p_config.h" 33 34#include "r300_context.h" 35#include "r300_reg.h" 36#include "r300_screen.h" 37#include "r300_state_inlines.h" 38#include "r300_fs.h" 39#include "r300_vs.h" 40 41#include "radeon_winsys.h" 42 43/* r300_state: Functions used to intialize state context by translating 44 * Gallium state objects into semi-native r300 state objects. */ 45 46static boolean blend_discard_if_src_alpha_0(unsigned srcRGB, unsigned srcA, 47 unsigned dstRGB, unsigned dstA) 48{ 49 /* If the blend equation is ADD or REVERSE_SUBTRACT, 50 * SRC_ALPHA == 0, and the following state is set, the colorbuffer 51 * will not be changed. 52 * Notice that the dst factors are the src factors inverted. */ 53 return (srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 54 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 55 srcRGB == PIPE_BLENDFACTOR_ZERO) && 56 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 57 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 58 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 59 srcA == PIPE_BLENDFACTOR_ZERO) && 60 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 61 dstRGB == PIPE_BLENDFACTOR_ONE) && 62 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 63 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 64 dstA == PIPE_BLENDFACTOR_ONE); 65} 66 67static boolean blend_discard_if_src_alpha_1(unsigned srcRGB, unsigned srcA, 68 unsigned dstRGB, unsigned dstA) 69{ 70 /* If the blend equation is ADD or REVERSE_SUBTRACT, 71 * SRC_ALPHA == 1, and the following state is set, the colorbuffer 72 * will not be changed. 73 * Notice that the dst factors are the src factors inverted. */ 74 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 75 srcRGB == PIPE_BLENDFACTOR_ZERO) && 76 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 77 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 78 srcA == PIPE_BLENDFACTOR_ZERO) && 79 (dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 80 dstRGB == PIPE_BLENDFACTOR_ONE) && 81 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 82 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 83 dstA == PIPE_BLENDFACTOR_ONE); 84} 85 86static boolean blend_discard_if_src_color_0(unsigned srcRGB, unsigned srcA, 87 unsigned dstRGB, unsigned dstA) 88{ 89 /* If the blend equation is ADD or REVERSE_SUBTRACT, 90 * SRC_COLOR == (0,0,0), and the following state is set, the colorbuffer 91 * will not be changed. 92 * Notice that the dst factors are the src factors inverted. */ 93 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 94 srcRGB == PIPE_BLENDFACTOR_ZERO) && 95 (srcA == PIPE_BLENDFACTOR_ZERO) && 96 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 97 dstRGB == PIPE_BLENDFACTOR_ONE) && 98 (dstA == PIPE_BLENDFACTOR_ONE); 99} 100 101static boolean blend_discard_if_src_color_1(unsigned srcRGB, unsigned srcA, 102 unsigned dstRGB, unsigned dstA) 103{ 104 /* If the blend equation is ADD or REVERSE_SUBTRACT, 105 * SRC_COLOR == (1,1,1), and the following state is set, the colorbuffer 106 * will not be changed. 107 * Notice that the dst factors are the src factors inverted. */ 108 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 109 srcRGB == PIPE_BLENDFACTOR_ZERO) && 110 (srcA == PIPE_BLENDFACTOR_ZERO) && 111 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 112 dstRGB == PIPE_BLENDFACTOR_ONE) && 113 (dstA == PIPE_BLENDFACTOR_ONE); 114} 115 116static boolean blend_discard_if_src_alpha_color_0(unsigned srcRGB, unsigned srcA, 117 unsigned dstRGB, unsigned dstA) 118{ 119 /* If the blend equation is ADD or REVERSE_SUBTRACT, 120 * SRC_ALPHA_COLOR == (0,0,0,0), and the following state is set, 121 * the colorbuffer will not be changed. 122 * Notice that the dst factors are the src factors inverted. */ 123 return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || 124 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 125 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 126 srcRGB == PIPE_BLENDFACTOR_ZERO) && 127 (srcA == PIPE_BLENDFACTOR_SRC_COLOR || 128 srcA == PIPE_BLENDFACTOR_SRC_ALPHA || 129 srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || 130 srcA == PIPE_BLENDFACTOR_ZERO) && 131 (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 132 dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 133 dstRGB == PIPE_BLENDFACTOR_ONE) && 134 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 135 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 136 dstA == PIPE_BLENDFACTOR_ONE); 137} 138 139static boolean blend_discard_if_src_alpha_color_1(unsigned srcRGB, unsigned srcA, 140 unsigned dstRGB, unsigned dstA) 141{ 142 /* If the blend equation is ADD or REVERSE_SUBTRACT, 143 * SRC_ALPHA_COLOR == (1,1,1,1), and the following state is set, 144 * the colorbuffer will not be changed. 145 * Notice that the dst factors are the src factors inverted. */ 146 return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || 147 srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 148 srcRGB == PIPE_BLENDFACTOR_ZERO) && 149 (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 150 srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 151 srcA == PIPE_BLENDFACTOR_ZERO) && 152 (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || 153 dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 154 dstRGB == PIPE_BLENDFACTOR_ONE) && 155 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 156 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 157 dstA == PIPE_BLENDFACTOR_ONE); 158} 159 160static unsigned bgra_cmask(unsigned mask) 161{ 162 /* Gallium uses RGBA color ordering while R300 expects BGRA. */ 163 164 return ((mask & PIPE_MASK_R) << 2) | 165 ((mask & PIPE_MASK_B) >> 2) | 166 (mask & (PIPE_MASK_G | PIPE_MASK_A)); 167} 168 169/* Create a new blend state based on the CSO blend state. 170 * 171 * This encompasses alpha blending, logic/raster ops, and blend dithering. */ 172static void* r300_create_blend_state(struct pipe_context* pipe, 173 const struct pipe_blend_state* state) 174{ 175 struct r300_screen* r300screen = r300_screen(pipe->screen); 176 struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state); 177 178 if (state->rt[0].blend_enable) 179 { 180 unsigned eqRGB = state->rt[0].rgb_func; 181 unsigned srcRGB = state->rt[0].rgb_src_factor; 182 unsigned dstRGB = state->rt[0].rgb_dst_factor; 183 184 unsigned eqA = state->rt[0].alpha_func; 185 unsigned srcA = state->rt[0].alpha_src_factor; 186 unsigned dstA = state->rt[0].alpha_dst_factor; 187 188 /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha, 189 * this is just the crappy D3D naming */ 190 blend->blend_control = R300_ALPHA_BLEND_ENABLE | 191 r300_translate_blend_function(eqRGB) | 192 ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) | 193 ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT); 194 195 /* Optimization: some operations do not require the destination color. 196 * 197 * When SRC_ALPHA_SATURATE is used, colorbuffer reads must be enabled, 198 * otherwise blending gives incorrect results. It seems to be 199 * a hardware bug. */ 200 if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN || 201 eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX || 202 dstRGB != PIPE_BLENDFACTOR_ZERO || 203 dstA != PIPE_BLENDFACTOR_ZERO || 204 srcRGB == PIPE_BLENDFACTOR_DST_COLOR || 205 srcRGB == PIPE_BLENDFACTOR_DST_ALPHA || 206 srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR || 207 srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA || 208 srcA == PIPE_BLENDFACTOR_DST_COLOR || 209 srcA == PIPE_BLENDFACTOR_DST_ALPHA || 210 srcA == PIPE_BLENDFACTOR_INV_DST_COLOR || 211 srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA || 212 srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) { 213 /* Enable reading from the colorbuffer. */ 214 blend->blend_control |= R300_READ_ENABLE; 215 216 if (r300_screen(r300_context(pipe)->context.screen)->caps->is_r500) { 217 /* Optimization: Depending on incoming pixels, we can 218 * conditionally disable the reading in hardware... */ 219 if (eqRGB != PIPE_BLEND_MIN && eqA != PIPE_BLEND_MIN && 220 eqRGB != PIPE_BLEND_MAX && eqA != PIPE_BLEND_MAX) { 221 /* Disable reading if SRC_ALPHA == 0. */ 222 if ((dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || 223 dstRGB == PIPE_BLENDFACTOR_ZERO) && 224 (dstA == PIPE_BLENDFACTOR_SRC_COLOR || 225 dstA == PIPE_BLENDFACTOR_SRC_ALPHA || 226 dstA == PIPE_BLENDFACTOR_ZERO)) { 227 blend->blend_control |= R500_SRC_ALPHA_0_NO_READ; 228 } 229 230 /* Disable reading if SRC_ALPHA == 1. */ 231 if ((dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 232 dstRGB == PIPE_BLENDFACTOR_ZERO) && 233 (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || 234 dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || 235 dstA == PIPE_BLENDFACTOR_ZERO)) { 236 blend->blend_control |= R500_SRC_ALPHA_1_NO_READ; 237 } 238 } 239 } 240 } 241 242 /* Optimization: discard pixels which don't change the colorbuffer. 243 * 244 * The code below is non-trivial and some math is involved. 245 * 246 * Discarding pixels must be disabled when FP16 AA is enabled. 247 * This is a hardware bug. Also, this implementation wouldn't work 248 * with FP blending enabled and equation clamping disabled. 249 * 250 * Equations other than ADD are rarely used and therefore won't be 251 * optimized. */ 252 if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) && 253 (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) { 254 /* ADD: X+Y 255 * REVERSE_SUBTRACT: Y-X 256 * 257 * The idea is: 258 * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1, 259 * then CB will not be changed. 260 * 261 * Given the srcFactor and dstFactor variables, we can derive 262 * what src and dst should be equal to and discard appropriate 263 * pixels. 264 */ 265 if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) { 266 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0; 267 } else if (blend_discard_if_src_alpha_1(srcRGB, srcA, 268 dstRGB, dstA)) { 269 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1; 270 } else if (blend_discard_if_src_color_0(srcRGB, srcA, 271 dstRGB, dstA)) { 272 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0; 273 } else if (blend_discard_if_src_color_1(srcRGB, srcA, 274 dstRGB, dstA)) { 275 blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1; 276 } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA, 277 dstRGB, dstA)) { 278 blend->blend_control |= 279 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0; 280 } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA, 281 dstRGB, dstA)) { 282 blend->blend_control |= 283 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1; 284 } 285 } 286 287 /* separate alpha */ 288 if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { 289 blend->blend_control |= R300_SEPARATE_ALPHA_ENABLE; 290 blend->alpha_blend_control = 291 r300_translate_blend_function(eqA) | 292 (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) | 293 (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT); 294 } 295 } 296 297 /* PIPE_LOGICOP_* don't need to be translated, fortunately. */ 298 if (state->logicop_enable) { 299 blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE | 300 (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT; 301 } 302 303 /* Color channel masks for all MRTs. */ 304 blend->color_channel_mask = bgra_cmask(state->rt[0].colormask); 305 if (r300screen->caps->is_r500 && state->independent_blend_enable) { 306 if (state->rt[1].blend_enable) { 307 blend->color_channel_mask |= bgra_cmask(state->rt[1].colormask) << 4; 308 } 309 if (state->rt[2].blend_enable) { 310 blend->color_channel_mask |= bgra_cmask(state->rt[2].colormask) << 8; 311 } 312 if (state->rt[3].blend_enable) { 313 blend->color_channel_mask |= bgra_cmask(state->rt[3].colormask) << 12; 314 } 315 } 316 317 if (state->dither) { 318 blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT | 319 R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; 320 } 321 322 return (void*)blend; 323} 324 325/* Bind blend state. */ 326static void r300_bind_blend_state(struct pipe_context* pipe, 327 void* state) 328{ 329 struct r300_context* r300 = r300_context(pipe); 330 331 r300->blend_state.state = state; 332 r300->blend_state.dirty = TRUE; 333} 334 335/* Free blend state. */ 336static void r300_delete_blend_state(struct pipe_context* pipe, 337 void* state) 338{ 339 FREE(state); 340} 341 342/* Convert float to 10bit integer */ 343static unsigned float_to_fixed10(float f) 344{ 345 return CLAMP((unsigned)(f * 1023.9f), 0, 1023); 346} 347 348/* Set blend color. 349 * Setup both R300 and R500 registers, figure out later which one to write. */ 350static void r300_set_blend_color(struct pipe_context* pipe, 351 const struct pipe_blend_color* color) 352{ 353 struct r300_context* r300 = r300_context(pipe); 354 struct r300_screen* r300screen = r300_screen(pipe->screen); 355 struct r300_blend_color_state* state = 356 (struct r300_blend_color_state*)r300->blend_color_state.state; 357 union util_color uc; 358 359 util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); 360 state->blend_color = uc.ui; 361 362 /* XXX if FP16 blending is enabled, we should use the FP16 format */ 363 state->blend_color_red_alpha = 364 float_to_fixed10(color->color[0]) | 365 (float_to_fixed10(color->color[3]) << 16); 366 state->blend_color_green_blue = 367 float_to_fixed10(color->color[2]) | 368 (float_to_fixed10(color->color[1]) << 16); 369 370 r300->blend_color_state.size = r300screen->caps->is_r500 ? 3 : 2; 371 r300->blend_color_state.dirty = TRUE; 372} 373 374static void r300_set_clip_state(struct pipe_context* pipe, 375 const struct pipe_clip_state* state) 376{ 377 struct r300_context* r300 = r300_context(pipe); 378 379 r300->clip = *state; 380 381 if (r300_screen(pipe->screen)->caps->has_tcl) { 382 memcpy(r300->clip_state.state, state, sizeof(struct pipe_clip_state)); 383 r300->clip_state.size = 29; 384 } else { 385 draw_flush(r300->draw); 386 draw_set_clip_state(r300->draw, state); 387 r300->clip_state.size = 2; 388 } 389 390 r300->clip_state.dirty = TRUE; 391} 392 393/* Create a new depth, stencil, and alpha state based on the CSO dsa state. 394 * 395 * This contains the depth buffer, stencil buffer, alpha test, and such. 396 * On the Radeon, depth and stencil buffer setup are intertwined, which is 397 * the reason for some of the strange-looking assignments across registers. */ 398static void* 399 r300_create_dsa_state(struct pipe_context* pipe, 400 const struct pipe_depth_stencil_alpha_state* state) 401{ 402 struct r300_capabilities *caps = 403 r300_screen(r300_context(pipe)->context.screen)->caps; 404 struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); 405 406 /* Depth test setup. */ 407 if (state->depth.enabled) { 408 dsa->z_buffer_control |= R300_Z_ENABLE; 409 410 if (state->depth.writemask) { 411 dsa->z_buffer_control |= R300_Z_WRITE_ENABLE; 412 } 413 414 dsa->z_stencil_control |= 415 (r300_translate_depth_stencil_function(state->depth.func) << 416 R300_Z_FUNC_SHIFT); 417 } 418 419 /* Stencil buffer setup. */ 420 if (state->stencil[0].enabled) { 421 dsa->z_buffer_control |= R300_STENCIL_ENABLE; 422 dsa->z_stencil_control |= 423 (r300_translate_depth_stencil_function(state->stencil[0].func) << 424 R300_S_FRONT_FUNC_SHIFT) | 425 (r300_translate_stencil_op(state->stencil[0].fail_op) << 426 R300_S_FRONT_SFAIL_OP_SHIFT) | 427 (r300_translate_stencil_op(state->stencil[0].zpass_op) << 428 R300_S_FRONT_ZPASS_OP_SHIFT) | 429 (r300_translate_stencil_op(state->stencil[0].zfail_op) << 430 R300_S_FRONT_ZFAIL_OP_SHIFT); 431 432 dsa->stencil_ref_mask = 433 (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) | 434 (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT); 435 436 if (state->stencil[1].enabled) { 437 dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK; 438 dsa->z_stencil_control |= 439 (r300_translate_depth_stencil_function(state->stencil[1].func) << 440 R300_S_BACK_FUNC_SHIFT) | 441 (r300_translate_stencil_op(state->stencil[1].fail_op) << 442 R300_S_BACK_SFAIL_OP_SHIFT) | 443 (r300_translate_stencil_op(state->stencil[1].zpass_op) << 444 R300_S_BACK_ZPASS_OP_SHIFT) | 445 (r300_translate_stencil_op(state->stencil[1].zfail_op) << 446 R300_S_BACK_ZFAIL_OP_SHIFT); 447 448 if (caps->is_r500) 449 { 450 dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; 451 dsa->stencil_ref_bf = 452 (state->stencil[1].valuemask << 453 R300_STENCILMASK_SHIFT) | 454 (state->stencil[1].writemask << 455 R300_STENCILWRITEMASK_SHIFT); 456 } 457 } 458 } 459 460 /* Alpha test setup. */ 461 if (state->alpha.enabled) { 462 dsa->alpha_function = 463 r300_translate_alpha_function(state->alpha.func) | 464 R300_FG_ALPHA_FUNC_ENABLE; 465 466 /* We could use 10bit alpha ref but who needs that? */ 467 dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); 468 469 if (caps->is_r500) 470 dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; 471 } 472 473 return (void*)dsa; 474} 475 476/* Bind DSA state. */ 477static void r300_bind_dsa_state(struct pipe_context* pipe, 478 void* state) 479{ 480 struct r300_context* r300 = r300_context(pipe); 481 struct r300_screen* r300screen = r300_screen(pipe->screen); 482 483 r300->dsa_state.state = state; 484 r300->dsa_state.size = r300screen->caps->is_r500 ? 8 : 6; 485 r300->dsa_state.dirty = TRUE; 486} 487 488/* Free DSA state. */ 489static void r300_delete_dsa_state(struct pipe_context* pipe, 490 void* state) 491{ 492 FREE(state); 493} 494 495static void r300_set_stencil_ref(struct pipe_context* pipe, 496 const struct pipe_stencil_ref* sr) 497{ 498 struct r300_context* r300 = r300_context(pipe); 499 r300->stencil_ref = *sr; 500 r300->dsa_state.dirty = TRUE; 501} 502 503/* This switcheroo is needed just because of goddamned MACRO_SWITCH. */ 504static void r300_fb_update_tiling_flags(struct r300_context *r300, 505 const struct pipe_framebuffer_state *old_state, 506 const struct pipe_framebuffer_state *new_state) 507{ 508 struct r300_texture *tex; 509 unsigned i, j, level; 510 511 /* Reset tiling flags for old surfaces to default values. */ 512 for (i = 0; i < old_state->nr_cbufs; i++) { 513 for (j = 0; j < new_state->nr_cbufs; j++) { 514 if (old_state->cbufs[i]->texture == new_state->cbufs[j]->texture) { 515 break; 516 } 517 } 518 /* If not binding the surface again... */ 519 if (j != new_state->nr_cbufs) { 520 continue; 521 } 522 523 tex = (struct r300_texture*)old_state->cbufs[i]->texture; 524 525 if (tex) { 526 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 527 tex->pitch[0], 528 tex->microtile != 0, 529 tex->macrotile != 0); 530 } 531 } 532 if (old_state->zsbuf && 533 (!new_state->zsbuf || 534 old_state->zsbuf->texture != new_state->zsbuf->texture)) { 535 tex = (struct r300_texture*)old_state->zsbuf->texture; 536 537 if (tex) { 538 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 539 tex->pitch[0], 540 tex->microtile != 0, 541 tex->macrotile != 0); 542 } 543 } 544 545 /* Set tiling flags for new surfaces. */ 546 for (i = 0; i < new_state->nr_cbufs; i++) { 547 tex = (struct r300_texture*)new_state->cbufs[i]->texture; 548 level = new_state->cbufs[i]->level; 549 550 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 551 tex->pitch[level], 552 tex->microtile != 0, 553 tex->mip_macrotile[level] != 0); 554 } 555 if (new_state->zsbuf) { 556 tex = (struct r300_texture*)new_state->zsbuf->texture; 557 level = new_state->zsbuf->level; 558 559 r300->winsys->buffer_set_tiling(r300->winsys, tex->buffer, 560 tex->pitch[level], 561 tex->microtile != 0, 562 tex->mip_macrotile[level] != 0); 563 } 564} 565 566static void 567 r300_set_framebuffer_state(struct pipe_context* pipe, 568 const struct pipe_framebuffer_state* state) 569{ 570 struct r300_context* r300 = r300_context(pipe); 571 struct r300_screen* r300screen = r300_screen(pipe->screen); 572 unsigned max_width, max_height; 573 uint32_t zbuffer_bpp = 0; 574 575 576 if (state->nr_cbufs > 4) { 577 debug_printf("r300: Implementation error: Too many MRTs in %s, " 578 "refusing to bind framebuffer state!\n", __FUNCTION__); 579 return; 580 } 581 582 if (r300screen->caps->is_r500) { 583 max_width = max_height = 4096; 584 } else if (r300screen->caps->is_r400) { 585 max_width = max_height = 4021; 586 } else { 587 max_width = max_height = 2560; 588 } 589 590 if (state->width > max_width || state->height > max_height) { 591 debug_printf("r300: Implementation error: Render targets are too " 592 "big in %s, refusing to bind framebuffer state!\n", __FUNCTION__); 593 return; 594 } 595 596 597 if (r300->draw) { 598 draw_flush(r300->draw); 599 } 600 601 memcpy(r300->fb_state.state, state, sizeof(struct pipe_framebuffer_state)); 602 603 r300->fb_state.size = (10 * state->nr_cbufs) + (2 * (4 - state->nr_cbufs)) + 604 (state->zsbuf ? 10 : 0) + 8; 605 606 r300_fb_update_tiling_flags(r300, r300->fb_state.state, state); 607 608 /* XXX wait what */ 609 r300->blend_state.dirty = TRUE; 610 r300->dsa_state.dirty = TRUE; 611 r300->fb_state.dirty = TRUE; 612 r300->scissor_state.dirty = TRUE; 613 614 /* Polygon offset depends on the zbuffer bit depth. */ 615 if (state->zsbuf && r300->polygon_offset_enabled) { 616 switch (util_format_get_blocksize(state->zsbuf->texture->format)) { 617 case 2: 618 zbuffer_bpp = 16; 619 break; 620 case 4: 621 zbuffer_bpp = 24; 622 break; 623 } 624 625 if (r300->zbuffer_bpp != zbuffer_bpp) { 626 r300->zbuffer_bpp = zbuffer_bpp; 627 r300->rs_state.dirty = TRUE; 628 } 629 } 630} 631 632/* Create fragment shader state. */ 633static void* r300_create_fs_state(struct pipe_context* pipe, 634 const struct pipe_shader_state* shader) 635{ 636 struct r300_fragment_shader* fs = NULL; 637 638 fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader); 639 640 /* Copy state directly into shader. */ 641 fs->state = *shader; 642 fs->state.tokens = tgsi_dup_tokens(shader->tokens); 643 644 tgsi_scan_shader(shader->tokens, &fs->info); 645 r300_shader_read_fs_inputs(&fs->info, &fs->inputs); 646 647 return (void*)fs; 648} 649 650/* Bind fragment shader state. */ 651static void r300_bind_fs_state(struct pipe_context* pipe, void* shader) 652{ 653 struct r300_context* r300 = r300_context(pipe); 654 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 655 656 if (fs == NULL) { 657 r300->fs = NULL; 658 return; 659 } 660 661 r300->fs = fs; 662 r300_pick_fragment_shader(r300); 663 664 r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ 665 666 if (r300->vs_state.state && r300_vertex_shader_setup_wpos(r300)) { 667 r300->vap_output_state.dirty = TRUE; 668 } 669 670 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | R300_NEW_FRAGMENT_SHADER_CONSTANTS; 671} 672 673/* Delete fragment shader state. */ 674static void r300_delete_fs_state(struct pipe_context* pipe, void* shader) 675{ 676 struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; 677 struct r300_fragment_shader_code *tmp, *ptr = fs->first; 678 679 while (ptr) { 680 tmp = ptr; 681 ptr = ptr->next; 682 rc_constants_destroy(&tmp->code.constants); 683 FREE(tmp); 684 } 685 FREE((void*)fs->state.tokens); 686 FREE(shader); 687} 688 689static void r300_set_polygon_stipple(struct pipe_context* pipe, 690 const struct pipe_poly_stipple* state) 691{ 692 /* XXX no idea how to set this up, but not terribly important */ 693} 694 695/* Create a new rasterizer state based on the CSO rasterizer state. 696 * 697 * This is a very large chunk of state, and covers most of the graphics 698 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks. 699 * 700 * In a not entirely unironic sidenote, this state has nearly nothing to do 701 * with the actual block on the Radeon called the rasterizer (RS). */ 702static void* r300_create_rs_state(struct pipe_context* pipe, 703 const struct pipe_rasterizer_state* state) 704{ 705 struct r300_screen* r300screen = r300_screen(pipe->screen); 706 struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state); 707 708 /* Copy rasterizer state for Draw. */ 709 rs->rs = *state; 710 711#ifdef PIPE_ARCH_LITTLE_ENDIAN 712 rs->vap_control_status = R300_VC_NO_SWAP; 713#else 714 rs->vap_control_status = R300_VC_32BIT_SWAP; 715#endif 716 717 /* If bypassing TCL, or if no TCL engine is present, turn off the HW TCL. 718 * Else, enable HW TCL and force Draw's TCL off. */ 719 if (!r300screen->caps->has_tcl) { 720 rs->vap_control_status |= R300_VAP_TCL_BYPASS; 721 } 722 723 rs->point_size = pack_float_16_6x(state->point_size) | 724 (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT); 725 726 rs->line_control = pack_float_16_6x(state->line_width) | 727 R300_GA_LINE_CNTL_END_TYPE_COMP; 728 729 /* Enable polygon mode */ 730 if (state->fill_cw != PIPE_POLYGON_MODE_FILL || 731 state->fill_ccw != PIPE_POLYGON_MODE_FILL) { 732 rs->polygon_mode = R300_GA_POLY_MODE_DUAL; 733 } 734 735 /* Radeons don't think in "CW/CCW", they think in "front/back". */ 736 if (state->front_winding == PIPE_WINDING_CW) { 737 rs->cull_mode = R300_FRONT_FACE_CW; 738 739 /* Polygon offset */ 740 if (state->offset_cw) { 741 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 742 } 743 if (state->offset_ccw) { 744 rs->polygon_offset_enable |= R300_BACK_ENABLE; 745 } 746 747 /* Polygon mode */ 748 if (rs->polygon_mode) { 749 rs->polygon_mode |= 750 r300_translate_polygon_mode_front(state->fill_cw); 751 rs->polygon_mode |= 752 r300_translate_polygon_mode_back(state->fill_ccw); 753 } 754 } else { 755 rs->cull_mode = R300_FRONT_FACE_CCW; 756 757 /* Polygon offset */ 758 if (state->offset_ccw) { 759 rs->polygon_offset_enable |= R300_FRONT_ENABLE; 760 } 761 if (state->offset_cw) { 762 rs->polygon_offset_enable |= R300_BACK_ENABLE; 763 } 764 765 /* Polygon mode */ 766 if (rs->polygon_mode) { 767 rs->polygon_mode |= 768 r300_translate_polygon_mode_front(state->fill_ccw); 769 rs->polygon_mode |= 770 r300_translate_polygon_mode_back(state->fill_cw); 771 } 772 } 773 if (state->front_winding & state->cull_mode) { 774 rs->cull_mode |= R300_CULL_FRONT; 775 } 776 if (~(state->front_winding) & state->cull_mode) { 777 rs->cull_mode |= R300_CULL_BACK; 778 } 779 780 if (rs->polygon_offset_enable) { 781 rs->depth_offset = state->offset_units; 782 rs->depth_scale = state->offset_scale; 783 } 784 785 if (state->line_stipple_enable) { 786 rs->line_stipple_config = 787 R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE | 788 (fui((float)state->line_stipple_factor) & 789 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK); 790 /* XXX this might need to be scaled up */ 791 rs->line_stipple_value = state->line_stipple_pattern; 792 } 793 794 if (state->flatshade) { 795 rs->color_control = R300_SHADE_MODEL_FLAT; 796 } else { 797 rs->color_control = R300_SHADE_MODEL_SMOOTH; 798 } 799 800 return (void*)rs; 801} 802 803/* Bind rasterizer state. */ 804static void r300_bind_rs_state(struct pipe_context* pipe, void* state) 805{ 806 struct r300_context* r300 = r300_context(pipe); 807 struct r300_rs_state* rs = (struct r300_rs_state*)state; 808 809 if (r300->draw) { 810 draw_flush(r300->draw); 811 draw_set_rasterizer_state(r300->draw, &rs->rs); 812 } 813 814 if (rs) { 815 r300->polygon_offset_enabled = rs->rs.offset_cw || rs->rs.offset_ccw; 816 r300->rs_state.dirty = TRUE; 817 } else { 818 r300->polygon_offset_enabled = FALSE; 819 } 820 821 r300->rs_state.state = rs; 822 r300->rs_state.size = 17 + (r300->polygon_offset_enabled ? 5 : 0); 823 /* XXX Why is this still needed, dammit!? */ 824 r300->scissor_state.dirty = TRUE; 825 r300->viewport_state.dirty = TRUE; 826 827 /* XXX Clean these up when we move to atom emits */ 828 if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { 829 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 830 } 831} 832 833/* Free rasterizer state. */ 834static void r300_delete_rs_state(struct pipe_context* pipe, void* state) 835{ 836 FREE(state); 837} 838 839static void* 840 r300_create_sampler_state(struct pipe_context* pipe, 841 const struct pipe_sampler_state* state) 842{ 843 struct r300_context* r300 = r300_context(pipe); 844 struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state); 845 int lod_bias; 846 union util_color uc; 847 848 sampler->state = *state; 849 850 sampler->filter0 |= 851 (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) | 852 (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) | 853 (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT); 854 855 sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter, 856 state->mag_img_filter, 857 state->min_mip_filter, 858 state->max_anisotropy > 0); 859 860 /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */ 861 /* We must pass these to the merge function to clamp them properly. */ 862 sampler->min_lod = MAX2((unsigned)state->min_lod, 0); 863 sampler->max_lod = MAX2((unsigned)ceilf(state->max_lod), 0); 864 865 lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1); 866 867 sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT; 868 869 sampler->filter1 |= r300_anisotropy(state->max_anisotropy); 870 871 util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); 872 sampler->border_color = uc.ui; 873 874 /* R500-specific fixups and optimizations */ 875 if (r300_screen(r300->context.screen)->caps->is_r500) { 876 sampler->filter1 |= R500_BORDER_FIX; 877 } 878 879 return (void*)sampler; 880} 881 882static void r300_bind_sampler_states(struct pipe_context* pipe, 883 unsigned count, 884 void** states) 885{ 886 struct r300_context* r300 = r300_context(pipe); 887 struct r300_textures_state* state = 888 (struct r300_textures_state*)r300->textures_state.state; 889 890 if (count > 8) { 891 return; 892 } 893 894 memcpy(state->sampler_states, states, sizeof(void*) * count); 895 state->sampler_count = count; 896 897 r300->textures_state.dirty = TRUE; 898 899 /* Pick a fragment shader based on the texture compare state. */ 900 if (r300->fs && count) { 901 if (r300_pick_fragment_shader(r300)) { 902 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | 903 R300_NEW_FRAGMENT_SHADER_CONSTANTS; 904 } 905 } 906} 907 908static void r300_lacks_vertex_textures(struct pipe_context* pipe, 909 unsigned count, 910 void** states) 911{ 912} 913 914static void r300_delete_sampler_state(struct pipe_context* pipe, void* state) 915{ 916 FREE(state); 917} 918 919static void r300_set_sampler_textures(struct pipe_context* pipe, 920 unsigned count, 921 struct pipe_texture** texture) 922{ 923 struct r300_context* r300 = r300_context(pipe); 924 struct r300_textures_state* state = 925 (struct r300_textures_state*)r300->textures_state.state; 926 unsigned i; 927 boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500; 928 boolean dirty_tex = FALSE; 929 930 /* XXX magic num */ 931 if (count > 8) { 932 return; 933 } 934 935 for (i = 0; i < count; i++) { 936 if (state->textures[i] != (struct r300_texture*)texture[i]) { 937 pipe_texture_reference((struct pipe_texture**)&state->textures[i], 938 texture[i]); 939 dirty_tex = TRUE; 940 941 /* R300-specific - set the texrect factor in the fragment shader */ 942 if (!is_r500 && state->textures[i]->is_npot) { 943 /* XXX It would be nice to re-emit just 1 constant, 944 * XXX not all of them */ 945 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 946 } 947 } 948 } 949 950 for (i = count; i < 8; i++) { 951 if (state->textures[i]) { 952 pipe_texture_reference((struct pipe_texture**)&state->textures[i], 953 NULL); 954 } 955 } 956 957 state->texture_count = count; 958 959 r300->textures_state.dirty = TRUE; 960 961 if (dirty_tex) { 962 r300->texture_cache_inval.dirty = TRUE; 963 } 964} 965 966static void r300_set_scissor_state(struct pipe_context* pipe, 967 const struct pipe_scissor_state* state) 968{ 969 struct r300_context* r300 = r300_context(pipe); 970 971 memcpy(r300->scissor_state.state, state, 972 sizeof(struct pipe_scissor_state)); 973 974 r300->scissor_state.dirty = TRUE; 975} 976 977static void r300_set_viewport_state(struct pipe_context* pipe, 978 const struct pipe_viewport_state* state) 979{ 980 struct r300_context* r300 = r300_context(pipe); 981 struct r300_viewport_state* viewport = 982 (struct r300_viewport_state*)r300->viewport_state.state; 983 984 r300->viewport = *state; 985 986 /* Do the transform in HW. */ 987 viewport->vte_control = R300_VTX_W0_FMT; 988 989 if (state->scale[0] != 1.0f) { 990 viewport->xscale = state->scale[0]; 991 viewport->vte_control |= R300_VPORT_X_SCALE_ENA; 992 } 993 if (state->scale[1] != 1.0f) { 994 viewport->yscale = state->scale[1]; 995 viewport->vte_control |= R300_VPORT_Y_SCALE_ENA; 996 } 997 if (state->scale[2] != 1.0f) { 998 viewport->zscale = state->scale[2]; 999 viewport->vte_control |= R300_VPORT_Z_SCALE_ENA; 1000 } 1001 if (state->translate[0] != 0.0f) { 1002 viewport->xoffset = state->translate[0]; 1003 viewport->vte_control |= R300_VPORT_X_OFFSET_ENA; 1004 } 1005 if (state->translate[1] != 0.0f) { 1006 viewport->yoffset = state->translate[1]; 1007 viewport->vte_control |= R300_VPORT_Y_OFFSET_ENA; 1008 } 1009 if (state->translate[2] != 0.0f) { 1010 viewport->zoffset = state->translate[2]; 1011 viewport->vte_control |= R300_VPORT_Z_OFFSET_ENA; 1012 } 1013 1014 r300->viewport_state.dirty = TRUE; 1015 if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { 1016 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 1017 } 1018} 1019 1020static void r300_set_vertex_buffers(struct pipe_context* pipe, 1021 unsigned count, 1022 const struct pipe_vertex_buffer* buffers) 1023{ 1024 struct r300_context* r300 = r300_context(pipe); 1025 unsigned i, max_index = ~0; 1026 1027 memcpy(r300->vertex_buffer, buffers, 1028 sizeof(struct pipe_vertex_buffer) * count); 1029 1030 for (i = 0; i < count; i++) { 1031 max_index = MIN2(buffers[i].max_index, max_index); 1032 } 1033 1034 r300->vertex_buffer_count = count; 1035 r300->vertex_buffer_max_index = max_index; 1036 1037 if (r300->draw) { 1038 draw_flush(r300->draw); 1039 draw_set_vertex_buffers(r300->draw, count, buffers); 1040 } else { 1041 r300->vertex_stream_state.dirty = TRUE; 1042 } 1043} 1044 1045static boolean r300_validate_aos(struct r300_context *r300) 1046{ 1047 struct pipe_vertex_buffer *vbuf = r300->vertex_buffer; 1048 struct pipe_vertex_element *velem = r300->vertex_element; 1049 int i; 1050 1051 /* Check if formats and strides are aligned to the size of DWORD. */ 1052 for (i = 0; i < r300->vertex_element_count; i++) { 1053 if (vbuf[velem[i].vertex_buffer_index].stride % 4 != 0 || 1054 util_format_get_blocksize(velem[i].src_format) % 4 != 0) { 1055 return FALSE; 1056 } 1057 } 1058 return TRUE; 1059} 1060 1061static void r300_set_vertex_elements(struct pipe_context* pipe, 1062 unsigned count, 1063 const struct pipe_vertex_element* elements) 1064{ 1065 struct r300_context* r300 = r300_context(pipe); 1066 1067 memcpy(r300->vertex_element, 1068 elements, 1069 sizeof(struct pipe_vertex_element) * count); 1070 r300->vertex_element_count = count; 1071 1072 if (r300->draw) { 1073 draw_flush(r300->draw); 1074 draw_set_vertex_elements(r300->draw, count, elements); 1075 } 1076 1077 if (!r300_validate_aos(r300)) { 1078 /* XXX We should fallback using draw. */ 1079 assert(0); 1080 abort(); 1081 } 1082} 1083 1084static void* r300_create_vs_state(struct pipe_context* pipe, 1085 const struct pipe_shader_state* shader) 1086{ 1087 struct r300_context* r300 = r300_context(pipe); 1088 1089 if (r300_screen(pipe->screen)->caps->has_tcl) { 1090 struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader); 1091 /* Copy state directly into shader. */ 1092 vs->state = *shader; 1093 vs->state.tokens = tgsi_dup_tokens(shader->tokens); 1094 1095 tgsi_scan_shader(shader->tokens, &vs->info); 1096 1097 return (void*)vs; 1098 } else { 1099 return draw_create_vertex_shader(r300->draw, shader); 1100 } 1101} 1102 1103static void r300_bind_vs_state(struct pipe_context* pipe, void* shader) 1104{ 1105 struct r300_context* r300 = r300_context(pipe); 1106 1107 if (r300_screen(pipe->screen)->caps->has_tcl) { 1108 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 1109 1110 if (vs == NULL) { 1111 r300->vs_state.state = NULL; 1112 return; 1113 } else if (!vs->translated) { 1114 r300_translate_vertex_shader(r300, vs); 1115 } 1116 1117 r300->vs_state.state = vs; 1118 r300->vs_state.size = vs->code.length + 9; 1119 r300->vs_state.dirty = TRUE; 1120 1121 r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ 1122 r300->vap_output_state.dirty = TRUE; 1123 r300->vertex_stream_state.dirty = TRUE; /* XXX needed for TCL bypass */ 1124 r300->pvs_flush.dirty = TRUE; 1125 1126 if (r300->fs) { 1127 r300_vertex_shader_setup_wpos(r300); 1128 } 1129 1130 r300->dirty_state |= R300_NEW_VERTEX_SHADER_CONSTANTS; 1131 } else { 1132 draw_flush(r300->draw); 1133 draw_bind_vertex_shader(r300->draw, 1134 (struct draw_vertex_shader*)shader); 1135 } 1136} 1137 1138static void r300_delete_vs_state(struct pipe_context* pipe, void* shader) 1139{ 1140 struct r300_context* r300 = r300_context(pipe); 1141 1142 if (r300_screen(pipe->screen)->caps->has_tcl) { 1143 struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; 1144 1145 rc_constants_destroy(&vs->code.constants); 1146 FREE((void*)vs->state.tokens); 1147 FREE(shader); 1148 } else { 1149 draw_delete_vertex_shader(r300->draw, 1150 (struct draw_vertex_shader*)shader); 1151 } 1152} 1153 1154static void r300_set_constant_buffer(struct pipe_context *pipe, 1155 uint shader, uint index, 1156 struct pipe_buffer *buf) 1157{ 1158 struct r300_context* r300 = r300_context(pipe); 1159 struct r300_screen *r300screen = r300_screen(pipe->screen); 1160 void *mapped; 1161 int max_size = 0; 1162 1163 if (buf == NULL || buf->size == 0 || 1164 (mapped = pipe_buffer_map(pipe->screen, buf, PIPE_BUFFER_USAGE_CPU_READ)) == NULL) 1165 { 1166 r300->shader_constants[shader].count = 0; 1167 return; 1168 } 1169 1170 assert((buf->size % 4 * sizeof(float)) == 0); 1171 1172 /* Check the size of the constant buffer. */ 1173 switch (shader) { 1174 case PIPE_SHADER_VERTEX: 1175 max_size = 256; 1176 break; 1177 case PIPE_SHADER_FRAGMENT: 1178 if (r300screen->caps->is_r500) { 1179 max_size = 256; 1180 /* XXX Implement emission of r400's extended constant buffer. */ 1181 /*} else if (r300screen->caps->is_r400) { 1182 max_size = 64;*/ 1183 } else { 1184 max_size = 32; 1185 } 1186 break; 1187 default: 1188 assert(0); 1189 } 1190 1191 /* XXX Subtract immediates and RC_STATE_* variables. */ 1192 if (buf->size > (sizeof(float) * 4 * max_size)) { 1193 debug_printf("r300: Max size of the constant buffer is " 1194 "%i*4 floats.\n", max_size); 1195 abort(); 1196 } 1197 1198 memcpy(r300->shader_constants[shader].constants, mapped, buf->size); 1199 r300->shader_constants[shader].count = buf->size / (4 * sizeof(float)); 1200 pipe_buffer_unmap(pipe->screen, buf); 1201 1202 if (shader == PIPE_SHADER_VERTEX) { 1203 r300->dirty_state |= R300_NEW_VERTEX_SHADER_CONSTANTS; 1204 r300->pvs_flush.dirty = TRUE; 1205 } 1206 else if (shader == PIPE_SHADER_FRAGMENT) 1207 r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; 1208} 1209 1210void r300_init_state_functions(struct r300_context* r300) 1211{ 1212 r300->context.create_blend_state = r300_create_blend_state; 1213 r300->context.bind_blend_state = r300_bind_blend_state; 1214 r300->context.delete_blend_state = r300_delete_blend_state; 1215 1216 r300->context.set_blend_color = r300_set_blend_color; 1217 1218 r300->context.set_clip_state = r300_set_clip_state; 1219 1220 r300->context.set_constant_buffer = r300_set_constant_buffer; 1221 1222 r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state; 1223 r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state; 1224 r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state; 1225 1226 r300->context.set_stencil_ref = r300_set_stencil_ref; 1227 1228 r300->context.set_framebuffer_state = r300_set_framebuffer_state; 1229 1230 r300->context.create_fs_state = r300_create_fs_state; 1231 r300->context.bind_fs_state = r300_bind_fs_state; 1232 r300->context.delete_fs_state = r300_delete_fs_state; 1233 1234 r300->context.set_polygon_stipple = r300_set_polygon_stipple; 1235 1236 r300->context.create_rasterizer_state = r300_create_rs_state; 1237 r300->context.bind_rasterizer_state = r300_bind_rs_state; 1238 r300->context.delete_rasterizer_state = r300_delete_rs_state; 1239 1240 r300->context.create_sampler_state = r300_create_sampler_state; 1241 r300->context.bind_fragment_sampler_states = r300_bind_sampler_states; 1242 r300->context.bind_vertex_sampler_states = r300_lacks_vertex_textures; 1243 r300->context.delete_sampler_state = r300_delete_sampler_state; 1244 1245 r300->context.set_fragment_sampler_textures = r300_set_sampler_textures; 1246 1247 r300->context.set_scissor_state = r300_set_scissor_state; 1248 1249 r300->context.set_viewport_state = r300_set_viewport_state; 1250 1251 r300->context.set_vertex_buffers = r300_set_vertex_buffers; 1252 r300->context.set_vertex_elements = r300_set_vertex_elements; 1253 1254 r300->context.create_vs_state = r300_create_vs_state; 1255 r300->context.bind_vs_state = r300_bind_vs_state; 1256 r300->context.delete_vs_state = r300_delete_vs_state; 1257} 1258